From 44e9dc83e96cefdf1c6eef45812cd80a3017b44e Mon Sep 17 00:00:00 2001 From: winlin Date: Sun, 12 Dec 2021 15:38:30 +0800 Subject: [PATCH] Upgrade gperftools to 2.9 for GCP/GMC/GMP/GMD. 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gtest-1.6.0.zip * google test framework. * https://code.google.com/p/googletest/downloads/list - -gperftools-2.1.zip + +gperftools-2-fit * gperf tools for performance benchmark. -* https://github.com/gperftools/gperftools/releases +* https://github.com/gperftools/gperftools/releases/tag/gperftools-2.9.1 st-srs st-1.9.zip diff --git a/trunk/3rdparty/gperftools-2-fit/AUTHORS b/trunk/3rdparty/gperftools-2-fit/AUTHORS new file mode 100644 index 000000000..3995ed4cf --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/AUTHORS @@ -0,0 +1,2 @@ +google-perftools@googlegroups.com + diff --git a/trunk/3rdparty/gperftools-2-fit/COPYING b/trunk/3rdparty/gperftools-2-fit/COPYING new file mode 100644 index 000000000..e4956cfd9 --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/COPYING @@ -0,0 +1,28 @@ +Copyright (c) 2005, Google Inc. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/trunk/3rdparty/gperftools-2-fit/ChangeLog b/trunk/3rdparty/gperftools-2-fit/ChangeLog new file mode 100644 index 000000000..49ad492ca --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/ChangeLog @@ -0,0 +1,14434 @@ +commit f7c6fb6c8e99d6b1b725e5994373bcd19ffdf8fd +Author: Aliaksey Kandratsenka +Date: Tue Mar 2 19:32:07 2021 -0800 + + bump version to 2.9.1 + +M CMakeLists.txt +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit c2f60400a86a5211bf009941bf1ccf9b2947a7c1 +Author: Aliaksey Kandratsenka +Date: Sun Feb 28 17:52:17 2021 -0800 + + prefer backtrace() on OSX + + It seems to work and _Unwind_Backtrace which is configured otherwise + doesn't. + +M CMakeLists.txt +M cmake/DefineTargetVariables.cmake +M configure.ac + +commit a015377a54eb09fca4b893ae530187a705164df5 +Author: Aliaksey Kandratsenka +Date: Sun Feb 28 17:47:56 2021 -0800 + + Set tcmalloc heap limit prior to testing oom + + Otherwise it can take long time to OOM on osex. + +M src/tcmalloc.cc +M src/tests/tcmalloc_unittest.cc + +commit c939dd5531fd95e8af2181ac60e0b6e6230226c8 +Author: Aliaksey Kandratsenka +Date: Sun Feb 28 15:42:00 2021 -0800 + + correctly check sized delete hint when asserts are on + + We previously tested wrong assumption that larger than page size size + classes have addresses aligned on page size. New code is making proper + check of size class. + + Also added is unit test coverage for this previously failing + condition. And we now also run "assert-ful" unittests for big tcmalloc + too, not only tcmalloc_minimal configuration. + + This fixes github issue #1254 + +M .gitignore +M Makefile.am +M src/tcmalloc.cc +M src/tests/tcmalloc_unittest.cc + +commit 47b5b59ca9b62ee42cf30273cce463aa9cbba8c7 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 15:16:06 2021 -0800 + + bump version to 2.9 + +M CMakeLists.txt +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit d7cbc8c2ff4ab8dbdc411ab1f25eca459f88502e +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 14:55:15 2021 -0800 + + unbreak cmake build + + It was trying to use third_party/valgrind.h header which I recently + removed. + +M CMakeLists.txt + +commit be0bbdb3403685798a7c1d5acf6405d2635fba4c +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 13:48:11 2021 -0800 + + amputate various unused bits from elfcore.h + +M src/base/elfcore.h + +commit 42bab59f25dee53f91c0ba45e95b73754e197c20 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 13:35:43 2021 -0800 + + liberate profile handler from linux_syscall_support + + We can get thread's tid in more portable way via libc syscall wrapper. + +M src/profile-handler.cc + +commit 4629511e99f85fa8ca40fcbe105e014a725059d2 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 13:32:08 2021 -0800 + + liberate spinlock futex waits from linux_syscall_support includes + + We've been using libc syscall wrapper some time now. + +M src/base/spinlock_linux-inl.h + +commit 2e7094a86215118f3dcd3ad6f2c9099dc409ecc5 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 13:28:48 2021 -0800 + + liberate malloc_hook_mmap_linux.h from linux_syscall_support + + It was not used some time now, as we're rightfully trusting libc + syscall wrapper instead. + +M src/malloc_hook_mmap_linux.h + +commit 35301e2e59b30b7379981e60f3046124a2dfd68e +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 12:40:45 2021 -0800 + + add missing noopt wrappings around more operator new calls + + This fixes tests passing on clang which otherwise eliminates those + new/delete calls so checking for hooks being called failed. + +M src/tests/tcmalloc_unittest.cc + +commit fa412adfe38ffd3f545a0e10139bd20b38b688e9 +Author: Venkatesh Srinivas +Date: Wed Feb 17 17:50:43 2021 -0800 + + Fix thread-safety (annotalysis) annotations + + tcmalloc contains some thread-safety annotations; however those + annotations have not been exercised for some time, as they used + macros/attributes only supported by a legacy branch of gcc. + + Pull request #1251 converted those macros to support modern + versions of clang; this CR fixes the annotations that were + enabled. For the most part, this just requires re-enabling + annotations on member functions that take/release locks. For the + tcmalloc fork (pre-fork and post-fork) handlers, we mark the + functions as exempt from this analysis, as it takes a dynamic + number of locks. + +M src/base/low_level_alloc.cc +M src/base/spinlock.h +M src/central_freelist.h +M src/static_vars.cc + +commit cc496aecb81ee5966c865f3723743ff02046c5ad +Author: Venkatesh Srinivas +Date: Wed Feb 17 16:23:17 2021 -0800 + + tcmalloc: Switch thread-safety annotations to support clang + + tcmalloc contains its own copy of thread_annotations.h, wrapper + macros for static thread-safety analysis expressions. These thread- + safety expressions allow asserting (at compile time) that certain + locks are held or excluded or certain data is protected by specific + locks; they are checked at compile-time by recent versions of clang + or a gcc branch (https://gcc.gnu.org/wiki/ThreadSafetyAnnotation). + + Convert the #if-guard and macro names from the no-longer-supported + gcc branch's defines & macros to the versions supported by recent + versions of clang. + +M src/base/thread_annotations.h + +commit 96ba58e19b7b93fcf1db6a0551c9510296ce26da +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 23:18:57 2021 -0800 + + bump version to 2.9rc + +M CMakeLists.txt +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 9ce32aefa9c66698817be50e141c5a39fe3823c8 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 23:02:28 2021 -0800 + + upgrade test bot to xenial (ubuntu 16.04 LTS) + + Older glibc seemingly doesn't have right unwind info for signal frame, + so fails recently upgraded stacktrace_unittest. But since this version + is not supported anymore, lets just test newer glibc. + +M .travis.yml + +commit 91ff3114492f368a651ee790c8311eb6fadf3e8e +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 22:36:55 2021 -0800 + + don't default to generic_fp without frame pointers + + I.e. on x86-64 and riscv. + +M src/stacktrace.cc + +commit 4cf7dd0a7502849b117e15ad5eb1eb68eab4b6dc +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 22:28:34 2021 -0800 + + enable emergency_malloc on all architectures with mmap + + It is actually needed for libgcc backtracer from time to time. And + we've seen libunwind to need it too. Plus we've not heard of any + problems with it. So lets just always enable it. + + This should fix github issue #1248. + +M configure.ac + +commit 37087ec5360e821627155d3129f9b55a321a0001 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 21:37:20 2021 -0800 + + prefer libunwind on x86-64 even with -fno-omit-frame-pointer + + Libunwind is mostly safe on x86-64 and most of OS (e.g. libc) is + compiled without frame pointers anyways. Even when libc is built with + frame pointers, various libc asm routines (e.g. memcpy) are not. And + even for code built with frame pointers we actually sometimes get + SIGPROF inside function prologues, before frame pointer is + established. Which then causes imperfect backtraces. + + Libunwind should handle this all (when it doesn't crash or deadlock). + +M src/stacktrace.cc + +commit f4aa2a435eed63fc047448635f705a9c6037bd97 +Author: Aliaksey Kandratsenka +Date: Sun Feb 7 11:59:44 2021 -0800 + + implement generic frame pointer backtracer + + This supports frame pointer backtracing on x86-64, aarch64 and + riscv-s (should work for both 32 and 64 bits). + + Also added is detection of borked libunwind on aarch64-s. In this case + frame pointer unwinder is preferred. + +M Makefile.am +M src/stacktrace.cc +A src/stacktrace_generic_fp-inl.h +M src/tests/stacktrace_unittest.cc + +commit 17bab484aea43cf1a5247c823e036dfb52f5d92b +Author: Aliaksey Kandratsenka +Date: Sat Feb 6 13:21:12 2021 -0800 + + always respect --enable-frame-pointers + + Previously it only was respected on x86_64, but this days lots + of modern + ABIs are without frame pointers by default (e.g. arm64 and riscv, and + even older mips). + +M CMakeLists.txt +M Makefile.am +D cmake/CheckNoFPByDefault.cmake +M configure.ac + +commit 22c0eceddcf986a9b3f853b36d855acb38fa678f +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 16:29:14 2021 -0800 + + add emacs mode line annotations to remaining files + +M src/base/arm_instruction_set_select.h +M src/base/dynamic_annotations.c +M src/base/dynamic_annotations.h +M src/base/linuxthreads.h +M src/base/thread_annotations.h +M src/base/thread_lister.c +M src/base/vdso_support.cc +M src/base/vdso_support.h +M src/gperftools/heap-profiler.h +M src/gperftools/profiler.h +M src/gperftools/tcmalloc.h.in +M src/stacktrace_powerpc-darwin-inl.h +M src/tests/stacktrace_unittest.cc +M src/windows/addr2line-pdb.c +M src/windows/config.h +M src/windows/ia32_modrm_map.cc +M src/windows/ia32_opcode_map.cc +M src/windows/nm-pdb.c +M src/windows/patch_functions.cc +M src/windows/system-alloc.cc + +commit b12139ddbaa3e16ba491a24ce6fec51009e70cce +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 16:13:15 2021 -0800 + + delete-trailing-whitespace on all files + +M src/addressmap-inl.h +M src/base/atomicops-internals-gcc.h +M src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-windows.h +M src/base/atomicops-internals-x86.cc +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/base/commandlineflags.h +M src/base/googleinit.h +M src/base/linuxthreads.cc +M src/base/logging.cc +M src/base/logging.h +M src/base/low_level_alloc.cc +M src/base/low_level_alloc.h +M src/base/simple_mutex.h +M src/base/spinlock.cc +M src/base/spinlock.h +M src/base/spinlock_linux-inl.h +M src/base/spinlock_posix-inl.h +M src/base/spinlock_win32-inl.h +M src/base/stl_allocator.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/thread_annotations.h +M src/base/vdso_support.cc +M src/common.cc +M src/config_for_unittests.h +M src/getenv_safe.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/google/malloc_hook.h +M src/google/malloc_hook_c.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/google/tcmalloc.h +M src/gperftools/heap-profiler.h +M src/gperftools/malloc_extension.h +M src/gperftools/malloc_extension_c.h +M src/gperftools/malloc_hook.h +M src/gperftools/malloc_hook_c.h +M src/gperftools/profiler.h +M src/gperftools/stacktrace.h +M src/heap-checker-bcad.cc +M src/heap-profile-stats.h +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/malloc_extension.cc +M src/malloc_hook-inl.h +M src/malloc_hook.cc +M src/maybe_threads.cc +M src/maybe_threads.h +M src/memfs_malloc.cc +M src/memory_region_map.cc +M src/memory_region_map.h +M src/pagemap.h +M src/profile-handler.cc +M src/profile-handler.h +M src/raw_printer.cc +M src/raw_printer.h +M src/sampler.cc +M src/sampler.h +M src/stacktrace_powerpc-inl.h +M src/symbolize.cc +M src/symbolize.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tests/addressmap_unittest.cc +M src/tests/atomicops_unittest.cc +M src/tests/frag_unittest.cc +M src/tests/heap-profiler_unittest.cc +M src/tests/low_level_alloc_unittest.cc +M src/tests/malloc_extension_c_test.c +M src/tests/malloc_extension_test.cc +M src/tests/markidle_unittest.cc +M src/tests/memalign_unittest.cc +M src/tests/pagemap_unittest.cc +M src/tests/profiler_unittest.cc +M src/tests/realloc_unittest.cc +M src/tests/sampler_test.cc +M src/tests/stacktrace_unittest.cc +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_large_unittest.cc +M src/tests/testutil.cc +M src/tests/testutil.h +M src/tests/thread_dealloc_unittest.cc +M src/windows/get_mangled_names.cc +M src/windows/google/tcmalloc.h +M src/windows/ia32_modrm_map.cc +M src/windows/ia32_opcode_map.cc +M src/windows/mingw.h +M src/windows/mini_disassembler.cc +M src/windows/mini_disassembler.h +M src/windows/mini_disassembler_types.h +M src/windows/nm-pdb.c +M src/windows/override_functions.cc +M src/windows/patch_functions.cc +M src/windows/port.cc +M src/windows/preamble_patcher.cc +M src/windows/preamble_patcher.h +M src/windows/preamble_patcher_test.cc +M src/windows/preamble_patcher_with_stub.cc +M src/windows/system-alloc.cc + +commit 419c85814de497d6dfaf6f9a19d153138a7dec08 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 16:02:56 2021 -0800 + + amputate unused dynamic annotations support + +M CMakeLists.txt +M Makefile.am +M cmake/config.h.in +M configure.ac +M src/base/dynamic_annotations.c +M src/base/dynamic_annotations.h +M src/base/low_level_alloc.cc +M src/base/spinlock.h +M src/profile-handler.cc +D src/third_party/valgrind.h +M src/windows/config.h + +commit 73a72cdb6154ab7bdd49b1dde91349a30e8d7973 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 15:11:12 2021 -0800 + + don't check for snprintf + +M CMakeLists.txt +M cmake/config.h.in +M src/windows/config.h +M src/windows/mingw.h +M src/windows/port.h + +commit 95b52b0504a7cb2bce36d72b8bb0825833500b4c +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 15:02:57 2021 -0800 + + don't check for unused uname symbol + +M CMakeLists.txt +M cmake/config.h.in +M configure.ac +M src/windows/config.h + +commit 01c2697fac41a5d6175ad0da21d9d753f0b385a1 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 14:30:29 2021 -0800 + + amputate unused SleepForMilliseconds from sysinfo.{h,cc} + +M src/base/sysinfo.cc +M src/base/sysinfo.h + +commit ac68c97187e3729668ff5048c9bd27aae14e974d +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 14:25:49 2021 -0800 + + don't check for useless __builtin_stack_pointer + + It doesn't seem to be supported anyways, and we're not using it too. + +M CMakeLists.txt +M cmake/config.h.in +M configure.ac +M src/windows/config.h + +commit 7271bb72be08db491d3f0c60c1b0d5593cc1b5b5 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 14:22:08 2021 -0800 + + unbreak cmake check for TLS support + +M CMakeLists.txt + +commit 7c106ca241a344993f8011397de8004a224e094a +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 14:14:55 2021 -0800 + + don't bother checking for stl namespace and use std + + Because there are no compilers left that don't do std namespace. + +M CMakeLists.txt +M cmake/config.h.in +M configure.ac +D m4/namespaces.m4 +D m4/stl_namespace.m4 +M src/heap-profiler.cc +M src/malloc_extension.cc +M src/tcmalloc.cc +M src/windows/config.h + +commit 0d6f32b9cef7ee044e55a746e7c76db62d23cd86 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 14:04:10 2021 -0800 + + use standard way to print size_t-sized ints + + I.e. just use zu/zd/zx instead of finding out right size and defining + PRI{u,x,d}S defines. Compilers have long caught up to this part of + standard. + +M cmake/config.h.in +M configure.ac +D m4/compiler_characteristics.m4 +M src/debugallocation.cc +M src/emergency_malloc.cc +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profiler.cc +M src/memory_region_map.cc +M src/profiledata.cc +M src/tcmalloc.cc +M src/tests/markidle_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/config.h + +commit 0c11d35f4a2a0f5f42ee684a3f5b27cbab8abae2 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 13:39:55 2021 -0800 + + amputate checking for __int64 + + Since everything supports stdint.h this days. + +M CMakeLists.txt +M cmake/config.h.in +M configure.ac +M src/windows/config.h +M src/windows/port.h + +commit 92718aaaeb08d139b346633333235bf2260d0848 +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 13:34:58 2021 -0800 + + amputate checking for conflict-signal.h + + It was never found or used. + +M CMakeLists.txt +M cmake/config.h.in +M src/profiler.cc +M src/windows/config.h + +commit 9bb2937261bca6c0257a8cfd62ff97f69c450acb +Author: Aliaksey Kandratsenka +Date: Sun Feb 14 13:33:10 2021 -0800 + + amputate checking for inline keyword support + + It is supported everywhere now. + +M CMakeLists.txt +M cmake/config.h.in +M configure.ac +M src/windows/config.h + +commit d9c4c3b481e641b719d3d790987ed7d094157bf2 +Author: Đoàn Trần Công Danh +Date: Fri Feb 12 19:21:18 2021 +0700 + + profile-handler: use documented sigev_notify_thread_id in sigevent + + sigevent(7) is documented to have sigev_notify_thread_id as its + member. + In glibc system, it's a macro expanded to the legacy _sigev_un._tid, + _sigev_un._tid is obviously an internal implementation detail as + signaled by its underscore prefix. And this macro was hidden inside + linux/signal.h in older version of glibc. + + On Linux that use musl libc, sigev_notify_thread_id is also a + macro, but + it's expanded to __sev_fields.sigev_notify_thread_id + + [alkondratenko@gmail.com: amputated broken linux/signal.h dependency] + [alkondratenko@gmail.com: see + https://github.com/gperftools/gperftools/pull/1250] + Signed-off-by: Aliaksey Kandratsenka + +M src/profile-handler.cc + +commit 43459feb33b87d3300e3b8b4917e5226678e4a0f +Author: Đoàn Trần Công Danh +Date: Sat Feb 13 17:35:20 2021 +0700 + + configure.ac: check for features.h once + +M configure.ac + +commit 290b123c01f6578391b20bb31849f26b02401112 +Author: Venkatesh Srinivas +Date: Mon Feb 8 12:32:23 2021 -0800 + + atomicops: Remove Acquire_Store / Release_Load + + gperftools' internal atomicops library included atomic + Release Load and Acquire Store operations; those operations + were unused and expressed ordering constraints that aren't + expressible in the C++ standard memory model. + + Remove them, to make a transition to C++11 atomics easier + and to avoid confusing use of them. + +M src/base/atomicops-internals-arm-generic.h +M src/base/atomicops-internals-arm-v6plus.h +M src/base/atomicops-internals-gcc.h +M src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-mips.h +M src/base/atomicops-internals-windows.h +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/tests/atomicops_unittest.cc + +commit 3b1c60cc4ea737ff151977dbcd164c5e2eb859fb +Author: SSE4 +Date: Wed Jan 27 11:15:56 2021 +0300 + + Add support for Elbrus 2000 (e2k) + +M cmake/PCFromUContext.cmake +M m4/pc_from_ucontext.m4 +M src/base/basictypes.h +M src/malloc_hook_mmap_linux.h + +commit c5747615da78f7c2d91112f2a6b6b4da4f18540a +Author: Jarno Rajahalme +Date: Fri Jan 29 09:54:18 2021 -0800 + + syscall: Mark x8 as clobbered + + Mark arm64 register x8 as clobbered by syscall body inline assembly as + it is being used to store the syscall number. Otherwise the compiler + may try to use it for some other purpose. + + This fix is derived from a resolution to clang Bugzilla report + https://bugs.llvm.org/show_bug.cgi?id=48798. See this report for a + minimal reproducer derived from the code fixed here as well as the + resolution. + + This should fix SEGFAULTs as reported in + https://github.com/envoyproxy/envoy/issues/14756. + + Fixes: #1241 + Signed-off-by: Jarno Rajahalme + +M src/base/linux_syscall_support.h + +commit d8eb315fb18f6fb0d6efa923401f166343727bc6 +Author: Aliaksey Kandratsenka +Date: Sun Dec 20 23:35:08 2020 -0800 + + bump version to 2.8.1 + +M CMakeLists.txt +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 6ed61f8e91ffc00310b253ad2c777c0e862bd742 +Author: Aliaksey Kandratsenka +Date: Sat Dec 19 19:14:50 2020 -0800 + + add note that cmake build is preliminary + +M CMakeLists.txt + +commit 6bbf2ed1501e27e215bb412b9b0b930921598bca +Author: okhowang(王沛文) +Date: Sat Sep 12 02:43:56 2020 +0800 + + Update cmake + +M CMakeLists.txt +M cmake/FindObjcopyWithWeaken.cmake +D cmake/GPerftoolsAddTarget.cmake +M cmake/config.h.in +A cmake/pkgconfig.pc +M cmake/tcmalloc.h.in +M src/tests/addressmap_unittest.cc +A src/windows/CMakeLists.txt + +commit 913d3eb7d7fc1c5cc025920d5699b528c268f0fa +Author: Isaac Hier +Date: Wed Nov 8 11:20:25 2017 -0500 + + Fix a few macros for Apple + +M CMakeLists.txt +M cmake/config.h.in + +commit 64a73b1cb87a6661e4c3092b07bfd5032fe9a1fa +Author: Isaac Hier +Date: Wed Nov 8 07:24:08 2017 -0500 + + Work on fixing linking errors in stacktrace + +M CMakeLists.txt +M cmake/config.h.in + +commit b788d51eb4cf80adc7d782fa8df7175ee96d41d9 +Author: Isaac Hier +Date: Tue Nov 7 21:25:34 2017 -0500 + + Fix conditional definitions + +M CMakeLists.txt + +commit 495229b625d65b19f3fc98fed5b626d31a89ee03 +Author: Isaac Hier +Date: Tue Nov 7 13:26:10 2017 -0500 + + Make internal tcmalloc libs + +M CMakeLists.txt + +commit cca7f6f669657218a15ef5a176706660ad2c1d67 +Author: Isaac Hier +Date: Sun Nov 5 16:53:28 2017 -0500 + + More unit tests and libraries + +M CMakeLists.txt + +commit 11dc65c3c40618065ae48ccdb1e1548e339bff32 +Author: Isaac Hier +Date: Sun Nov 5 12:53:07 2017 -0500 + + Fix config headers, add more unit tests + +M CMakeLists.txt +M cmake/config.h.in +M cmake/tcmalloc.h.in + +commit 6078fe40d9a5b829cbbadc6ec824163d6d9eda5b +Author: Isaac Hier +Date: Sun Nov 5 12:23:42 2017 -0500 + + Finish configure.ac conversion to CMake, start on Makefile.am + +M CMakeLists.txt +A cmake/CheckNoFPByDefault.cmake +M cmake/DefineTargetVariables.cmake +A cmake/FindObjcopyWithWeaken.cmake +A cmake/GPerftoolsAddTarget.cmake +M cmake/PCFromUContext.cmake +M cmake/config.h.in + +commit 515fb221966a2413d00184186da97719b90e3915 +Author: Isaac Hier +Date: Fri Nov 3 09:10:27 2017 -0400 + + Generate config header + +M CMakeLists.txt +D cmake/DefineArchVariables.cmake +A cmake/DefineTargetVariables.cmake +M cmake/PCFromUContext.cmake +A cmake/config.h.in +A cmake/tcmalloc.h.in + +commit 4adb5ff74d35900dd8d0ed07959eef68f85c8886 +Author: Isaac Hier +Date: Thu Nov 2 20:07:29 2017 -0400 + + Add architecture checks + +M CMakeLists.txt +A cmake/DefineArchVariables.cmake +M src/tcmalloc.h + +commit fa9bedc82cbbc289875a07b6e431e553b1a15b77 +Author: Isaac Hier +Date: Wed Nov 1 09:52:02 2017 -0400 + + Add most of CMake build + +M CMakeLists.txt +A cmake/PCFromUContext.cmake + +commit 9e4f72fd1faa3f406f468796b4b6908391c8019c +Author: Isaac Hier +Date: Mon Oct 30 22:26:13 2017 -0400 + + Define options, start system checks + +M CMakeLists.txt + +commit a6ce98174b47213f11c84d57cfbc1e3cdd609bfb +Author: Isaac Hier +Date: Mon Oct 30 09:35:34 2017 -0400 + + Add CMakeLists.txt + +A CMakeLists.txt + +commit 313495587598fb1a69b94c44a83735f6056f6049 +Author: Steve Langasek +Date: Thu Oct 8 16:49:21 2020 -0700 + + Additional porting for riscv64. + + Adds handling for the PC register, malloc_hook_mmap, and syscalls. + + Successfully built in Ubuntu with these changes. + +M m4/pc_from_ucontext.m4 +M src/base/linux_syscall_support.h +M src/malloc_hook_mmap_linux.h + +commit f0e289bdbb2fbbb7fa71496d846988c1bac0e310 +Author: Steve Langasek +Date: Thu Oct 8 07:54:03 2020 -0700 + + Enable build on riscv64. + + Cacheline length may be implementation-specific, but this is known + to be + correct on the U54. + +M src/base/basictypes.h + +commit 6c715b4fa183e221a29c5d7a4ea87aeba4ee02cf +Author: Tim Gates +Date: Sat Oct 10 17:26:00 2020 +1100 + + docs: fix simple typo, defininitions -> definitions + + There is a small typo in src/base/linux_syscall_support.h. + + Should read `definitions` rather than `defininitions`. + +M src/base/linux_syscall_support.h + +commit 02d5264018cc76a36713f97329870dbf85969519 +Author: Aliaksey Kandratsenka +Date: Sat Dec 19 17:15:31 2020 -0800 + + Revert "drop page heap lock when returning memory back to kernel" + + This reverts commit be3da70298bf3d25c7d64655922ab82dd819ec98. + + There are reports of crashes and false-positive OOMs from this + patch. Crashes under aggressive decommit mode are understood, but I + have yet to get confirmations whether false-positive OOMs were seen + under aggressive decommit or not. Thus lets revert for now. + + Updates issue #1227 and issue #1204. + +M src/page_heap.cc +M src/page_heap.h +M src/tests/page_heap_test.cc + +commit 151cbf5146cd5b359a4470860d1f7d8f6a843d62 +Author: Grant Henke +Date: Thu Nov 26 20:56:46 2020 -0600 + + Add OS X arm64 program counter + + [alkondratenko@gmail.com: updated comment that it is tested] + + Signed-off-by: Aliaksey Kandratsenka + +M m4/pc_from_ucontext.m4 + +commit 140e3481d0541044cdc27f45129b47f92d5940b7 +Merge: bda3c82 0fc5cab +Author: Aliaksey Kandratsenka (aka Aliaksei Kandratsenka) + +Date: Tue Nov 17 14:30:59 2020 -0800 + + Merge pull request #1231 from PatriosTheGreat/master + + Fix implicit-int-float-conversion warning. + +commit 0fc5cabdfc966affb6f336848d9587ec5d904d0c +Author: Levon Ter-Grigoryan +Date: Tue Nov 17 12:29:22 2020 +0100 + + Fix implicit-int-float-conversion warning. + +M src/sampler.cc + +commit bda3c82e11615ca9e7751d1f3cfb161026ee742a +Author: Kerrick Staley +Date: Wed Jul 8 16:42:12 2020 -0700 + + Increase kMaxStackDepth to 254 + + [alkondratenko@gmail.com: reduced value from 256 to 254] + +M src/profiledata.h + +commit 1d9b8bb59d5610f2c3e9faad6bbd91ceca17fb93 +Author: Aliaksey Kandratsenka +Date: Sat Jul 11 20:33:40 2020 -0700 + + don't test sbrk hook if we're on linux and don't have __sbrk + + "mmap" hooks code for linux only hooks sbrk when __sbrk is + defined. But musl doesn't offer this function (reasonably so), so + sbrk hooking doesn't work there. Not big loss, but lets make sure + tests don't fail. + + Lets reference this to issue #1198 + +M src/tests/tcmalloc_unittest.cc + +commit 180bfa10d7cb38e8b3784d60943d50e8fcef0dcb +Author: Aliaksey Kandratsenka +Date: Mon Jul 6 02:51:43 2020 -0700 + + bumped version to 2.8 + +M Makefile.am +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit c1bcc412ba4a94deaf8c3230519ecb4dda60557d +Author: Ryan Macnak +Date: Fri May 1 11:50:16 2020 -0700 + + Don't try to mark esp as clobbered in linux syscall support. + + Compare 9e5b1628737c67b4587f937164572774592978c4, issue #1076 + +M src/base/linux_syscall_support.h + +commit 50f89afaed3d07d384fa8d86c98460ccff1e870e +Author: Aliaksey Kandratsenka +Date: Sun Apr 19 22:21:07 2020 -0700 + + liberate gperftools tests from relying on -fno-builtin-XXX flags + + Clang mostly ignores those anyways, so our tests needed better way to + disable optimizations (clang is quite aggressive replacing new/delete + pair with stack allocation). + +M Makefile.am +M README +M src/tests/debugallocation_test.cc +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_large_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/tests/testutil.h + +commit 98ccd0f1029c11a3df0a51e4a14b543e430a96f8 +Author: Aliaksey Kandratsenka +Date: Sun Apr 19 22:50:16 2020 -0700 + + prevent inlining in heap-checker unittest + + The test relies on stuff "mmaper" function not being inlined, but + compilers are getting smarter and latest clang actually does inline it + now. Adding volatile to pointer declaration fixes it. + +M src/tests/heap-checker_unittest.cc + +commit e521472f1ac1ecf028e8c922ca4f8741473afd66 +Author: Aliaksey Kandratsenka +Date: Sun Jul 5 22:49:41 2020 -0700 + + fix linking of page_heap_test on windows + + After change to release page heap lock around returning memory back to + kernel, page heap test got dependency on page heap lock. Which was not + available on windows since relevant symbols are not exported. + + Proposed fix is to simply duplicate all needed .cc files in + page_heap_test project instead of linking to dll. This is not perfect + but gets job done, until we figure out better solution (GNU/Linux will + eventually get hidden visibility and will need it). + + This fixes github issue 1189. + +M vsprojects/page_heap_test/page_heap_test.vcxproj +M vsprojects/page_heap_test/page_heap_test.vcxproj.filters + +commit e5f77d6485bd2f6ce43862e3e57118b1bb97d30a +Author: Aliaksey Kandratsenka +Date: Mon Mar 23 01:21:27 2020 -0700 + + chmod -x Makefile.am gperftools.sln + +M Makefile.am +M gperftools.sln + +commit 6b92e00cecb82e7fae6e019583865faced29c6f7 +Author: Aliaksey Kandratsenka +Date: Mon Mar 23 01:15:40 2020 -0700 + + don't assume HAVE_MMAP on mingw builds + + Fixes github issue #1108. + +M configure.ac + +commit 4cddede3990a96969aac9ff13ce3c8195ec91ce7 +Author: Kirill Müller +Date: Tue Feb 25 09:09:22 2020 +0100 + + New ProfilerGetStackTrace() + +M Makefile.am +M src/gperftools/profiler.h +M src/profiler.cc + +commit db7aa547abb5abdd558587a15502584cbc825438 +Author: Aliaksey Kandratsenka +Date: Sun Mar 8 20:57:01 2020 -0700 + + bumped version to 2.8rc + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit be3da70298bf3d25c7d64655922ab82dd819ec98 +Author: Aliaksey Kandratsenka +Date: Sun Mar 8 19:32:02 2020 -0700 + + drop page heap lock when returning memory back to kernel + + Fixes issue #754. + +M src/page_heap.cc +M src/page_heap.h +M src/tests/page_heap_test.cc + +commit 87acc2782fe49a8b57d19783f61ff8bc667db68d +Author: Aliaksey Kandratsenka +Date: Sun Mar 8 18:22:17 2020 -0700 + + amputate span events history + + Nobody used it in years. Abseil tcmalloc had it amputated years ago. + +M src/central_freelist.cc +M src/page_heap.cc +M src/span.cc +M src/span.h + +commit e40c7f231ad89e1ee8bf37a1d6680880c519c901 +Author: Ilya Leoshkevich +Date: Thu Feb 27 13:10:29 2020 +0100 + + Fix mmap syscall on s390 + + mmap arguments must be passed in an array on s390. + + Signed-off-by: Ilya Leoshkevich + +M src/malloc_hook_mmap_linux.h + +commit b7607ee7d4ab35504a54588e5912a8e850686db2 +Author: Jon Kohler +Date: Sun Jan 19 22:09:08 2020 -0500 + + tcmalloc: ability to disable fallback allocator in memfs + + Whenever tcmalloc memfs allocator runs out of huge memory, it falls + back to the + default system allocator, which will start allocating from normal + anonymous + memory pool (small pages). For use cases that exclusively want + hugepage backed + memory, such as using tcmalloc in combination with Intel SPDK, this is + problematic. + + This change adds an environment variable + "TCMALLOC_MEMFS_DISABLE_FALLBACK" + which when set to true will ensure that tcmalloc doesn't fallback + to using the + system allocator when the system runs out of hugepages. This is + false by + default, such that all other tcmalloc consumers will not see any + changes. + + For those curious, you can see part of our upstream SPDK work here: + https://review.gerrithub.io/c/spdk/spdk/+/475943 + +M src/memfs_malloc.cc + +commit 1bfcb5bc3a779b6c0c63125737f035c2afcc9e95 +Author: Jon Kohler +Date: Tue Feb 18 11:14:49 2020 -0500 + + tcmalloc: fragmentation overhead instrumentation + + This patch adds visibility into the overhead due to fragmentation + for each size + class in the tcmalloc central free list, which is helpful when + debugging + fragmentation issues. + +M src/tcmalloc.cc + +commit 36bf1309de52433f0088274b347b4fc385ea056f +Author: Todd Lipcon +Date: Mon Jun 3 10:29:06 2019 -0700 + + Fix a clang-tidy readability warning for static member access + + This fixes the following warning: + + src/thread_cache.cc:281:10: warning: static member accessed through + instance [readability-static-accessed-through-instance] + return sampler_.GetSamplePeriod(); + ^~~~~~~~~~~~~~~~~~~~~~~~ + tcmalloc::Sampler:: + +M src/thread_cache.cc + +commit 2b2a962c2bdc3ecbdbd45873a07989c7ccb56560 +Author: prehistoricpenguin +Date: Fri Jul 12 16:25:55 2019 +0800 + + Remove executable flag for c++ files + +M src/heap-checker.cc +M src/heap-profiler.cc +M src/stacktrace_instrument-inl.h +M src/symbolize.cc +M src/system-alloc.cc +M src/tests/sampler_test.cc + +commit 8f308afbfedeca0991ef431e3b8e0b01bd5b8a8f +Author: Henrik Edin +Date: Tue Apr 9 15:16:55 2019 -0400 + + Increase kClassSizesMax to 128 to allow for page size of 4K + +M src/common.h + +commit d3fefdb69439292ec914cd8c65dd83ed1bcbdc65 +Author: Henrik Edin +Date: Tue Jan 29 13:25:40 2019 -0500 + + Allow configuring page size to 4K, 8K, 16K, 32K, 64K, 128K and 256K + +M INSTALL +M configure.ac +M src/common.h +M src/windows/config.h + +commit cf2df3b000c58155d3c83bd01b603894b4559c0b +Author: Laurent Stacul +Date: Fri Feb 7 09:37:34 2020 +0000 + + Fix the removed std::allocator::pointer member type removed in C++20 + +M src/tests/heap-checker_unittest.cc + +commit 31024506c543132adb315b8de89d5faa85e0ff0e +Author: shipujin +Date: Tue Aug 20 13:24:57 2019 +0800 + + Add mips64* support + +M src/base/linux_syscall_support.h + +commit fe62a0baab87ba3abca12f4a621532bf67c9a7d2 +Author: Holy Wu +Date: Tue Apr 9 18:33:26 2019 +0800 + + Update config.h in Windows + +M src/windows/config.h + +commit 8272631b5a9f9e840eb1b014f43b3ddea16ff67d +Author: 风 +Date: Wed Apr 17 10:55:06 2019 +0800 + + Fix a long time typo + + Thought this fix may not effect the behavior or performance, but it + seems indeed a bug. + +M src/pprof + +commit c1d546d7b22cc503f37e9a6efa1d249be60243a3 +Author: Aliaksey Kandratsenka +Date: Sun Apr 7 15:27:17 2019 -0700 + + never test and always default HAVE_MMAP to on + + This should alleviate vboxfs problems from issue #1008. + +M configure.ac + +commit fba6ce0e7aaa094fec09ef8763e86b19dc815624 +Author: pkubaj +Date: Mon Feb 4 16:10:06 2019 +0000 + + Fix build on FreeBSD + + On FreeBSD the following syntax is used: + mr REGA,REGB + +M src/stacktrace_powerpc-darwin-inl.h + +commit 98ac4ee9bc6ab285429fc5d97335b4c94fc0b919 +Author: Jakub Wilk +Date: Wed Apr 3 09:50:40 2019 +0200 + + Fix typos + +M README + +commit 9e5b1628737c67b4587f937164572774592978c4 +Author: Aliaksey Kandratsenka +Date: Sun Feb 10 12:46:18 2019 -0800 + + don't try to mark rsp as clobbered in linux syscall support + + rsp is not actually clobbered by that code and later gccs actually + (correctly) bark + at it. + + Fixed issue #1076. + +M src/base/linux_syscall_support.h + +commit 1e36ed705548ae2a5170bb00dfee0954b8ef76de +Author: Romain Geissler +Date: Tue Jan 29 18:31:19 2019 +0000 + + Use initial exec TLS model for all thread local variables from + thread_cache.cc + + This avoids a deadlock when a library which is being dlopen'ed creates + as part of its static constructors a thread which quickly need to call + malloc. We are still in the dlopen call (so with some internal glibc + mutex taken) when the thread executes code and later needs to call + malloc which in term calls tls_get_addr_tail, which wait for the + dlopen + mutex to be unlocked. If later the dlopen'ing thread also calls malloc + as part of its constructors, we are in a deadlock. + + Fix is similar to + https://github.com/gperftools/gperftools/commit/7852eeb75b9375cf52a7da01be044da6e915dd08 + + Stack of the dlopening thread: + #0 0x00007fd5406ca93c in __lll_lock_wait () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libpthread.so.0 + #1 0x00007fd5406c45a5 in pthread_mutex_lock () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libpthread.so.0 + ... proprietary code in the stack + #9 0x00007fd5074f0367 in + __static_initialization_and_destruction_0 (__initialize_p=1, + __priority=65535) at src/ClientImpl.cpp:15 + #10 0x00007fd5074f06d7 in _GLOBAL__sub_I_ClientImpl.cpp(void) + () at src/ClientImpl.cpp:85 + #11 0x00007fd50757aa46 in __do_global_ctors_aux () + #12 0x00007fd5073e985f in _init () from ... + #13 0x00007fd53bf9dec8 in ?? () from ... + #14 0x00007fd54d637a5d in call_init.part () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/ld-linux-x86-64.so.2 + #15 0x00007fd54d637bab in _dl_init () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/ld-linux-x86-64.so.2 + #16 0x00007fd54d63c160 in dl_open_worker () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/ld-linux-x86-64.so.2 + #17 0x00007fd54d637944 in _dl_catch_error () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/ld-linux-x86-64.so.2 + #18 0x00007fd54d63b7d9 in _dl_open () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/ld-linux-x86-64.so.2 + #19 0x00007fd54d61f2b9 in dlopen_doit () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libdl.so.2 + #20 0x00007fd54d637944 in _dl_catch_error () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/ld-linux-x86-64.so.2 + #21 0x00007fd54d61f889 in _dlerror_run () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libdl.so.2 + #22 0x00007fd54d61f351 in dlopen@@GLIBC_2.2.5 () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libdl.so.2 + + Stack of the newly created thread calling tls_get_addr_tail: + #0 0x00007fd5406ca93c in __lll_lock_wait () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libpthread.so.0 + #1 0x00007fd5406c4622 in pthread_mutex_lock () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libpthread.so.0 + #2 0x00007fd54d63a2ed in tls_get_addr_tail () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/ld-linux-x86-64.so.2 + #3 0x00007fd53fee877d in + tcmalloc::ThreadCache::CreateCacheIfNecessary () at + src/thread_cache.cc:344 + #4 0x00007fd53fecb4ab in tcmalloc::ThreadCache::GetCache () + at src/thread_cache.h:437 + #5 0x00007fd53fefeccb in (anonymous namespace)::do_malloc + (size=56) at src/tcmalloc.cc:1354 + #6 tcmalloc::do_allocate_full (size=56) + at src/tcmalloc.cc:1762 + #7 tcmalloc::allocate_full_cpp_throw_oom (size=56) at + src/tcmalloc.cc:1776 + #8 0x00007fd53ff01b80 in + tcmalloc::dispatch_allocate_full + (size=56) at src/tcmalloc.cc:1785 + #9 malloc_fast_path (size=56) at + src/tcmalloc.cc:1845 + #10 tc_new (size=56) at src/tcmalloc.cc:1980 + ... proprietary code in the stack + #26 0x00007fd5406c1ef4 in start_thread () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libpthread.so.0 + #27 0x00007fd5403ba01d in clone () from + /data3/mwrep/rgeissler/core.tls/opt/1A/toolchain/x86_64-2.6.32-v2/lib64/libc.so.6 + +M src/thread_cache.cc + +commit 8f9a873fce14337e113a3837603a11ade06da533 +Author: pkubaj +Date: Mon Feb 4 16:06:32 2019 +0000 + + Fix accessing PC on FreeBSD/powerpc and powerpc64 + +M m4/pc_from_ucontext.m4 + +commit fc00474ddc21fff618fc3f009b46590e241e425e +Author: Tulio Magno Quites Machado Filho +Date: Fri Feb 8 10:33:09 2019 -0200 + + Include asm/ptrace.h when accessing ucontext_t + + In some architectures (e.g. powerpc, powerpc64 and powerpc64le), the + macro that specifies the position of the program counter is defined in + header asm/ptrace.h. + + When glibc bug 21457 got fixed in version 2.27, header sys/ucontext.h + stopped including signal.h, which indirectly removed asm/ptrace.h too. + + Signed-off-by: Tulio Magno Quites Machado Filho + +M m4/pc_from_ucontext.m4 +M src/getpc.h + +commit 5574c87e39ee592c909cb48245c1d91e90ddaf4d +Author: Laurent Stacul +Date: Mon Oct 15 16:56:18 2018 +0200 + + Compile time aggressive decommit option + + [alkondratenko@gmail.com: performed s/agressive/aggressive/g] + Signed-off-by: Aliaksey Kandratsenka + +M configure.ac +M src/static_vars.cc + +commit e9ab4c53041ac62feefbbb076d326e9a77dd1567 +Author: Fabrice Fontaine +Date: Sun Oct 7 18:12:03 2018 +0200 + + undef mmap64 function + + mmap64 can already been defined and as a result the following error is + raised: + + In file included from src/malloc_hook.cc:686:0: + src/malloc_hook_mmap_linux.h: In function ‘void* mmap(void*, + size_t, int, int, int, off_t)’: + src/malloc_hook_mmap_linux.h:173:18: error: redefinition of ‘void* + mmap(void*, size_t, int, int, int, off_t)’ + extern "C" void* mmap(void *start, size_t length, int prot, + int flags, + ^~~~ + In file included from src/malloc_hook.cc:41:0: + src/malloc_hook_mmap_linux.h:159:18: note: ‘void* mmap(void*, + size_t, int, int, int, off_t)’ previously defined here + extern "C" void* mmap64(void *start, size_t length, int prot, + int flags, + ^ + Makefile:4874: recipe for target + 'src/libtcmalloc_minimal_internal_la-malloc_hook.lo' failed + + Signed-off-by: Fabrice Fontaine + +M src/malloc_hook_mmap_linux.h + +commit 5eec9d0ae396aa90ebcb5756dfd0f3d101667490 +Author: Aliaksey Kandratsenka +Date: Sun Oct 7 08:17:04 2018 -0700 + + Drop not very portable and not very useful unwind benchmark. + +M .gitignore +M Makefile.am +D benchmark/getcontext_light.cc +D benchmark/unwind_bench.cc + +commit 1561f0946fcc96d1384dae2a81f3ed111338a341 +Author: Fabrice Fontaine +Date: Sat Oct 6 20:43:19 2018 +0200 + + check for __sbrk + + __sbrk is not defined in musl so add a check for it in configure.ac + and + replace the check on ifndef __UCLIBC__ by a check on ifdef HAVE__SBRK + in src/malloc_hook_mmap_linux.h + + Signed-off-by: Fabrice Fontaine + +M configure.ac +M src/malloc_hook_mmap_linux.h + +commit 1de76671d478e848f0dd210e00df43bfa463ca9f +Author: Gabriel Marin +Date: Thu Oct 4 22:52:35 2018 +0000 + + Fix mmap region iteration while no regions are recorded. + + If no mmap regions are recorded, iteration failed since the RegionSet + (std::set) object is not initialized. + + Original CL https://codereview.chromium.org/14769008 + + Reviewed-on: https://chromium-review.googlesource.com/c/1130807 + +M src/memory_region_map.cc +M src/memory_region_map.h + +commit acdcacc28f17d2e8db1d1bb634025f820f912d93 +Author: Fabrice Fontaine +Date: Sun Apr 29 23:48:41 2018 +0200 + + Use off64_t instead of __off64_t + + __off64_t is a kernel internal symbol, which happens to be + user-visible + with glibc, but not necessarily with other C libraries such as musl. + + Switching from __off64_t to off64_t allows the code to build properly + with musl. + + Signed-off-by: Fabrice Fontaine + +M src/malloc_hook_mmap_linux.h + +commit 0177a2420aa68229f55bec970c59136813a50613 +Author: Gabriel Marin +Date: Fri Oct 5 21:49:50 2018 +0000 + + Return early in WriteProfile to reduce indentation + + Small code refactoring to reduce indentation. This change was + originally + part of https://codereview.chromium.org/9963095. + + Reviewed-on: https://chromium-review.googlesource.com/c/1130804 + +M src/heap-profile-table.cc + +commit b85652bf268d061a0ad0aec90f0d3c29aa80a6b5 +Author: Gabriel Marin +Date: Wed Oct 3 18:15:16 2018 +0000 + + Add generic.total_physical_bytes property to MallocExtension + + Original CL: + + - https://codereview.chromium.org/1410353005 + + Add generic.total_physical_bytes property to MallocExtension + + The actual physical memory usage of tcmalloc cannot be obtained by + GetNumericProperty. This accounts for the current_allocated_bytes, + fragmentation and malloc metadata, and excludes the unmapped memory + regions. This helps the user to understand how much memory is + actually + being used for the allocations that were made. + + Reviewed-on: https://chromium-review.googlesource.com/1130803 + +M src/gperftools/malloc_extension.h +M src/tcmalloc.cc + +commit 90df23c81fe6baf7799b5d3df37d2846ab88fc60 +Author: Gabriel Marin +Date: Fri Oct 5 22:00:33 2018 +0000 + + Make some tcmalloc constants truly const + + Reviewed-on: https://chromium-review.googlesource.com/c/1130809 + +M src/tcmalloc.cc + +commit 49dbe4362b431629111b85929d91fe9a46c42295 +Author: Aliaksey Kandratsenka +Date: Mon Sep 3 16:44:52 2018 -0700 + + Add comment about gperftools 2.8 not deduplicating heapz samples. + +M src/gperftools/malloc_extension.h + +commit 63a12a5ed3c4aca61cc46078b6cdf1d161425a69 +Author: Aliaksey Kandratsenka +Date: Mon Aug 27 20:10:09 2018 -0700 + + Drop de-duplication of heap sample (aka heapz) entries. + + pprof can aggregate them, and it can do it way better than we + can. With + proper unsampling etc. + +M src/stack_trace_table.cc +M src/stack_trace_table.h +M src/static_vars.cc +M src/static_vars.h +M src/tests/stack_trace_table_test.cc + +commit 954f9dc0e37ff46cb0cb24edfb39dc77fd2e7d0b +Author: Aliaksey Kandratsenka +Date: Sun Aug 26 11:37:59 2018 -0700 + + Add flag to disable installing unmaintained & deprecated pprof. + + Everyone should be using golang pprof from github.com/google/pprof, + but + distros still ship our perl version and not everyone is aware of + better pprof yet. + + This is another step in completely dropping perl pprof. We still + default to installing it, but hopefully we'll be able to convince + distros to disable this soon. + + We still install pprof under pprof-symbolize name because + stack traces symbolization depends on it, and because golang pprof + won't support this feature. + + This is related to issue #1038. + +M .gitignore +M Makefile.am +M configure.ac +M src/symbolize.cc + +commit 893bff51bcf220b724a812d340d878b5fb8ce911 +Author: Aliaksey Kandratsenka +Date: Sun Aug 26 11:35:44 2018 -0700 + + Avoid static initialization of pprof path for symbolization. + + This is one of the things that chrome's fork fixes, but with c++11 we + can do it even nicer. Proposed fix is to use c++11 local static + variable to ensure that pprof path is initialized once on as-needed + basis. + +M src/symbolize.cc + +commit 69867c523b334028c90f2acf22b5ae528fdc2356 +Author: Holy Wu +Date: Fri Aug 10 17:19:29 2018 +0800 + + Clean up MSVC projects + + 1.Remove superfluous per file settings for include directory and + runtime library. + 2.Remove unnecessary project tcmalloc_minimal_unittest-static. We + can simply build libtcmalloc_minimal as a static library and then + link against the single .lib file. + 3.Add separate configurations of patching and overriding facility + for release mode. + +M Makefile.am +M gperftools.sln +M vsprojects/addr2line-pdb/addr2line-pdb.vcxproj +M vsprojects/addressmap_unittest/addressmap_unittest.vcxproj +M +vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcxproj +M vsprojects/frag_unittest/frag_unittest.vcxproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcxproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcxproj.filters +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcxproj +M vsprojects/malloc_extension_test/malloc_extension_test.vcxproj +M vsprojects/malloc_hook_test/malloc_hook_test.vcxproj +M vsprojects/markidle_unittest/markidle_unittest.vcxproj +M vsprojects/nm-pdb/nm-pdb.vcxproj +M vsprojects/packed-cache_test/packed-cache_test.vcxproj +M vsprojects/page_heap_test/page_heap_test.vcxproj +M vsprojects/pagemap_unittest/pagemap_unittest.vcxproj +M vsprojects/preamble_patcher_test/preamble_patcher_test.vcxproj +M vsprojects/realloc_unittest/realloc_unittest.vcxproj +M vsprojects/sampler_test/sampler_test.vcxproj +M vsprojects/stack_trace_table_test/stack_trace_table_test.vcxproj +M vsprojects/system-alloc_unittest/system-alloc_unittest.vcxproj +M +vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcxproj +M +vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcxproj +M vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcxproj +D vsprojects/tmu-static/tmu-static.vcxproj +D vsprojects/tmu-static/tmu-static.vcxproj.filters + +commit f2bca77aed83107197abadee0652c39e2c4c73d3 +Author: Brian Silverman +Date: Thu Aug 9 16:33:39 2018 -0700 + + Fix page_heap_test flakiness + + After 71fa9f87 (use 2-level page map for 48-bit addresses), there is a + potential for allocs of additional leaves in the middle of the test. + With ASLR enabled on amd64 (without TCMALLOC_SMALL_BUT_SLOW), this + results in the test failing sometimes (< 1% of the time). Instead, + make + sure all those leaves are allocated before deciding on the baseline + heap + usage in the test. + +M src/tests/page_heap_test.cc + +commit c41688bf20186723367b560ceb539b2330951ddb +Author: Aliaksey Kandratsenka +Date: Sun Aug 5 20:39:07 2018 -0700 + + Use standard-conforming alignof in debugallocation.cc + + Clang was giving warning that alignof() is extension. So + we're now doing alignof of decltype. + +M src/debugallocation.cc + +commit 71c8cedacafe700e662c008b65f5064b23426070 +Author: Aliaksey Kandratsenka +Date: Sun Aug 5 18:54:01 2018 -0700 + + Fix incompatible aliasing warnings + + We aliased functions with different signatures and gcc now correctly + gives warning for that. Originally gcc 5 same code merging feature + caused us to alias more than necessary, but I am not able to reproduce + this problem anymore. So we're now aliasing only compatible functions. + +M src/libc_override_gcc_and_weak.h +M src/tcmalloc.cc + +commit 8dd304035848e780372a5a4bb1afac2b2d20bc43 +Author: Aliaksey Kandratsenka +Date: Sun Aug 5 19:52:11 2018 -0700 + + Format and fix out of bound access in CpuProfilerSwitch + + GCC was giving warning on snprintf and it hinted at base_profile_name + and full_profile_name not being long enough. + + Fix is to ensure base_profile_name is long enough for PATH_MAX and + that full_profile_name is enough longer to fit extra chars. + +M src/profiler.cc + +commit 467502e70acb89f36b475bf29fe12333939fe5c7 +Author: Aliaksey Kandratsenka +Date: Sun Aug 5 17:42:04 2018 -0700 + + provide constexpr constructor for Sampler + + Constexpr constructor lets us use Sampler in TLS variable in cleaner + way. + +M src/sampler.h +M src/tests/sampler_test.cc + +commit 1fb543cc708f22017cb39ae874a28c0addcf5a63 +Author: HolyWu +Date: Tue May 1 18:04:57 2018 +0800 + + Patch _free_dbg to make Debug mode in MSVC works + + Like _free_base, _free_dbg is called by CRT internal functions or + operator delete in Debug mode. + + This closes #719 and closes #894. + + [alkondratenko@gmail.com: trivial formatting fixes] + [alkondratenko@gmail.com: build free_dbg even in release builds] + +M src/windows/patch_functions.cc + +commit 267f431d8071799282f9f4af10455b7b6adeee38 +Author: Gabriel Marin +Date: Thu Aug 2 17:16:25 2018 -0700 + + Use indirect system calls in the linux spinlock implementation + +M src/base/spinlock_linux-inl.h + +commit 73ee9b15440d72d5c4f93586ea1179c0a265980c +Author: Gabriel Marin +Date: Mon Jul 2 09:31:10 2018 -0700 + + Use indirect system calls in the mmap malloc hooks. + + sys_{mmap|munmap|mremap}(...) calls are replaced with + syscall(SYS_{mmap|munmap|mremap}, ...). + +M src/malloc_hook_mmap_linux.h + +commit 3af509d4f91aa1fae3f8caeb17b158f20e9b5e59 +Author: Gabriel Marin +Date: Tue Jul 17 18:28:01 2018 -0700 + + benchmark: use angle brackets to include ucontext.h + + Using quotes for a system header file fails a presubmit check in + Chromium. + +M benchmark/unwind_bench.cc + +commit 0cdda6d7cc5e082bb704a9352934148e13dc0a0d +Author: Gabriel Marin +Date: Tue Jul 17 18:36:31 2018 -0700 + + use utf-8 for special symbols + + A few files in the windows port that haven't been touched in a + long time, + use non-utf8 codes for special symbols, breaking a presubmit + checker in + Chromium. + +M src/windows/ia32_modrm_map.cc +M src/windows/ia32_opcode_map.cc +M src/windows/mini_disassembler.h + +commit c7a0cfda880a7310a030c62546f04a2987a11ec2 +Author: etienneb +Date: Thu Apr 20 12:58:02 2017 -0700 + + Fix potential missing nul character on resolved symbol names + + The symbol name returned by SymFromName may not contains a NUL + character + when the symbol name is exactly the size of the buffer. It believe + this + may also happen when the symbol name is too long and truncated. + + The original code is based on: + https://msdn.microsoft.com/en-us/library/windows/desktop/ms680580(v=vs.85).aspx + + A right implementation can be found here: + https://cs.chromium.org/chromium/src/base/debug/stack_trace_win.cc?l=145&rcl=f4ecb9e37e9e2d59e32b8b96f23ac4a1e33b9552 + + As described here: + https://msdn.microsoft.com/en-us/library/windows/desktop/ms680686(v=vs.85).aspx + + NameLen + The length of the name, in characters, not including the + null-terminating character. + MaxNameLen + The size of the Name buffer, in characters. If this member is 0, + the Name member is not used. + + This issue was causing the catapult symbolisation script to encode + incorrect (random) characters into the symbol names. + See the example in the bug. + + Original BUG=713741 + + Review-Url: https://codereview.chromium.org/2832643004 + Cr-Commit-Position: refs/heads/master@{#466098} + + BUG=724399,b:70905156 + + Change-Id: Ia6de4ddbd5c66a966b74ecec3fda5e853f36073b + +M src/windows/addr2line-pdb.c + +commit e42bfc8c06abd1ea1a7e92d1d6d72d1959ec27b6 +Author: Gabriel Marin +Date: Thu Jul 19 11:10:31 2018 -0700 + + tcmalloc: use relative addresses with the windows addr2line wrapper + + Modifies the Windows addr2line wrapper to expect addresses relative to + DllBase to better simulate how addr2line works with modules in Linux. + + Windows DLLs have a concept of "default load address" which hints + to the OS + where to load the binary image after relocation. The dbghelp.dll + symbolization library will load the module at this location in + the virtual + address space meaning the caller of these functions would need to + be aware + of the base address. This makes things unnecessarily complex in the + face of + ASLR and also diverges from the behavior of addr2line when used + with linux- + style DSOs. This CL simply adds the module base address to the + incoming + addresses, thereby making the input relative addresses for the + module which + both is easier to use and lines up better with linux's addr2line + behavior. + + These changes were made originally as part of CL + https://codereview.chromium.org/2730473002. + + BUG=724399,b:70905156 + + Change-Id: I0abe9e0c380e7e60ae29a11021bb805b31718d08 + +M src/windows/addr2line-pdb.c + +commit d8f8d1cced71c37ff86ff577c3afe03b7cd1648f +Author: Gabriel Marin +Date: Wed Jul 18 18:50:30 2018 -0700 + + tcmalloc: add long form flag '--exe' to specify the binary + + This change was originally made as part of CL + https://codereview.chromium.org/2730473002 + + BUG=724399,b:70905156 + + Change-Id: I33ee28eac4dab6077cf162358cf4c10b41c0f6a2 + +M src/windows/addr2line-pdb.c + +commit 25c53aca125b54df1d5c0e64c96f074bdb92ade2 +Author: Gabriel Marin +Date: Wed Jul 18 18:39:15 2018 -0700 + + tcmalloc: fixes for the windows addr2line wrapper + + Fixes a few small format string bugs and makes the windows library + configuration #defines more friendly for chromium builds. + + Based on original CL: https://codereview.chromium.org/2730473002 + + BUG=724399,b:70905156 + + Change-Id: If54c6cfc5c508744d2ee18f251677b2456acda72 + +M src/windows/addr2line-pdb.c + +commit f02e28f3488122f497755de59dc822f08c6449b9 +Author: Gabriel Marin +Date: Tue Jul 31 15:35:53 2018 -0700 + + Replace builtin_expect configure test with a direct GCC compiler check + +M configure.ac +M src/base/basictypes.h + +commit 62c4eca6e7ec9dc78333dc6b499f90eef9849378 +Author: obones +Date: Fri Jul 20 11:07:02 2018 +0200 + + Under x64, the PE loader looks for callbacks in constant sections + + [alkondratenko@gmail.com: deleted some trailing whitespace] + +M src/windows/port.cc + +commit 0b588e7490eac4ef37b59c9265f1f3f05f4bb27c +Author: Brian Silverman +Date: Tue Jul 31 15:53:47 2018 -0700 + + Fix uninitialized memory use in sampler_test + + Sampler's documentation states the following: + C++03 requires that types stored in TLS be POD. As a result, + you must + initialize these members to {0, 0, false} before using this class! + + However, the test code wasn't doing that. MemorySanitizer and + UndefinedBehaviorSanitizer both failed because of it. + +M src/tests/sampler_test.cc + +commit 51a5613f21a34197ed655c363c54c71cf68271ba +Author: Aliaksei Kandratsenka +Date: Sun Aug 5 15:28:27 2018 -0700 + + Upgrade MSVC projects to MSVC2015 + +M Makefile.am +M gperftools.sln +D vsprojects/addr2line-pdb/addr2line-pdb.vcproj +A vsprojects/addr2line-pdb/addr2line-pdb.vcxproj +A vsprojects/addr2line-pdb/addr2line-pdb.vcxproj.filters +D vsprojects/addressmap_unittest/addressmap_unittest.vcproj +A vsprojects/addressmap_unittest/addressmap_unittest.vcxproj +A vsprojects/addressmap_unittest/addressmap_unittest.vcxproj.filters +D +vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcproj +A +vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcxproj +A +vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcxproj.filters +D vsprojects/frag_unittest/frag_unittest.vcproj +A vsprojects/frag_unittest/frag_unittest.vcxproj +A vsprojects/frag_unittest/frag_unittest.vcxproj.filters +D vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +A vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcxproj +A vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcxproj.filters +D +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +A +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcxproj +A +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcxproj.filters +D vsprojects/malloc_extension_test/malloc_extension_test.vcproj +A vsprojects/malloc_extension_test/malloc_extension_test.vcxproj +A +vsprojects/malloc_extension_test/malloc_extension_test.vcxproj.filters +D vsprojects/malloc_hook_test/malloc_hook_test.vcproj +A vsprojects/malloc_hook_test/malloc_hook_test.vcxproj +A vsprojects/malloc_hook_test/malloc_hook_test.vcxproj.filters +D vsprojects/markidle_unittest/markidle_unittest.vcproj +A vsprojects/markidle_unittest/markidle_unittest.vcxproj +A vsprojects/markidle_unittest/markidle_unittest.vcxproj.filters +D vsprojects/nm-pdb/nm-pdb.vcproj +A vsprojects/nm-pdb/nm-pdb.vcxproj +A vsprojects/nm-pdb/nm-pdb.vcxproj.filters +D vsprojects/packed-cache_test/packed-cache_test.vcproj +A vsprojects/packed-cache_test/packed-cache_test.vcxproj +A vsprojects/packed-cache_test/packed-cache_test.vcxproj.filters +D vsprojects/page_heap_test/page_heap_test.vcproj +A vsprojects/page_heap_test/page_heap_test.vcxproj +A vsprojects/page_heap_test/page_heap_test.vcxproj.filters +D vsprojects/pagemap_unittest/pagemap_unittest.vcproj +A vsprojects/pagemap_unittest/pagemap_unittest.vcxproj +A vsprojects/pagemap_unittest/pagemap_unittest.vcxproj.filters +D vsprojects/preamble_patcher_test/preamble_patcher_test.vcproj +A vsprojects/preamble_patcher_test/preamble_patcher_test.vcxproj +A +vsprojects/preamble_patcher_test/preamble_patcher_test.vcxproj.filters +D vsprojects/realloc_unittest/realloc_unittest.vcproj +A vsprojects/realloc_unittest/realloc_unittest.vcxproj +A vsprojects/realloc_unittest/realloc_unittest.vcxproj.filters +D vsprojects/sampler_test/sampler_test.vcproj +A vsprojects/sampler_test/sampler_test.vcxproj +A vsprojects/sampler_test/sampler_test.vcxproj.filters +D vsprojects/stack_trace_table_test/stack_trace_table_test.vcproj +A vsprojects/stack_trace_table_test/stack_trace_table_test.vcxproj +A +vsprojects/stack_trace_table_test/stack_trace_table_test.vcxproj.filters +D vsprojects/system-alloc_unittest/system-alloc_unittest.vcproj +A vsprojects/system-alloc_unittest/system-alloc_unittest.vcxproj +A +vsprojects/system-alloc_unittest/system-alloc_unittest.vcxproj.filters +D +vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcproj +A +vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcxproj +A +vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcxproj.filters +D +vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcproj +A +vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcxproj +A +vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcxproj.filters +D vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcproj +A vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcxproj +A +vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcxproj.filters +D vsprojects/tmu-static/tmu-static.vcproj +A vsprojects/tmu-static/tmu-static.vcxproj +A vsprojects/tmu-static/tmu-static.vcxproj.filters + +commit 44da4ce5397344342e71ea3cc2c246c2ca4aedb6 +Author: Aliaksey Kandratsenka +Date: Sun Aug 5 15:09:20 2018 -0700 + + build with c++11 or later + +M configure.ac +A m4/ax_cxx_compile_stdcxx.m4 + +commit f47a52ce85c3d8d559aaae7b7a426c359fbca225 +Author: HolyWu +Date: Mon Apr 30 15:41:50 2018 +0800 + + Make _recalloc adhere to MS's definition + +M src/tcmalloc.cc +M src/windows/override_functions.cc + +commit fe87ffb7ea5a7c6ce4dea45222331716907ddbf4 +Author: Junhao Li +Date: Sun May 20 13:45:32 2018 -0400 + + Disable large allocation report by default + + Fixes issue #360. + + [alkondratenko@gmail.com: adjusted commit message a bit] + [alkondratenko@gmail.com: adjusted configure help message] + Signed-off-by: Aliaksey Kandratsenka + +M configure.ac +M src/tcmalloc.cc + +commit 9608fa3bcf8020d35f59fbf70cd3cbe4b015b972 +Author: Aliaksey Kandratsenka +Date: Sun Apr 29 16:55:59 2018 -0700 + + bumped version to 2.7 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit db890ccfade3cf054ec330dfb4a9ddfab971367e +Author: HolyWu +Date: Mon Apr 30 12:08:51 2018 +0800 + + Clean up src/windows/config.h + +M src/windows/config.h + +commit 497ea331654f7ea9e4e6405f5beaea8ebcc9d10b +Author: HolyWu +Date: Sun Apr 15 22:47:17 2018 +0800 + + Fix WIN32_OVERRIDE_ALLOCATORS for VS2017 + + At first I try to add some functions as what Chrome does at their + https://chromium.googlesource.com/chromium/src/+/master/base/allocator/allocator_shim_override_ucrt_symbols_win.h, + but it still fails. So I decide to remove all heap-related objects + from libucrt.lib to see what happens. At the end I find that a lot of + functions in the CRT directly invoke _malloc_base instead of + malloc (and the others alike), hence we need to override them as well. + + This should close issue #716. + + [alkondratenko@gmail.com: added reference to ticket] + Signed-off-by: Aliaksey Kandratsenka + +M src/libc_override.h +M src/tcmalloc.cc +M src/windows/override_functions.cc +M src/windows/port.h + +commit ebc85cca9083241ae360e0c68e2f1d7538001fa3 +Author: HolyWu +Date: Tue Apr 17 11:40:49 2018 +0800 + + Enable aligned new/delete declarations on Windows when applicable + +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit a3badd6d2127c161f6fbad853fccd6e8064fcde7 +Author: Aliaksey Kandratsenka +Date: Sun Apr 29 16:34:54 2018 -0700 + + Really fix CheckAddressBits compilation warning + + It looks like previous fix introduced another warning on gcc for + i386. Somehow it barked on kAddressBits shift even that shift was dead + code. + + Anyways, we now avoid possibility of undefined shift even + stronger. And it actually removes compile warning on all compilers I + tested. + +M src/system-alloc.cc + +commit 7c718fe1768273f94acf2bd43cfa1f44a4b9bdcc +Author: HolyWu +Date: Thu Apr 19 13:49:28 2018 +0800 + + Add tests for sized deallocation + +M src/tests/tcmalloc_unittest.cc + +commit 30e5e614a846d5f046454341f108bc4cb2b70189 +Author: Fabrice Fontaine +Date: Sun Apr 22 19:17:12 2018 +0200 + + Fix build without static libraries + + Only add -static to malloc_bench_LDFLAGS and binary_trees_LDFLAGS if + ENABLE_STATC is set otherwise build with some compilers will fail if + user has decided to build only the shared version of gperftools + libraries + + Signed-off-by: Fabrice Fontaine + +M Makefile.am + +commit 836c4f29a585e4b176738f64cf8d312171be5fe0 +Author: Ben Dang +Date: Fri Apr 13 10:54:05 2018 -0700 + + Update documentation for heap_checker.html + + Make it clear that the static methods used require the "namespace", + `HeapLeakChecker::`. + +M docs/heap_checker.html + +commit e47d0d1c5142a4ad1203e58db31af2f58bafcda9 +Author: Tulio Magno Quites Machado Filho +Date: Tue Apr 10 15:56:52 2018 -0300 + + powerpc: Re-enable VDSO support + + Powerpc requires VDSO support in order to produce a stack trace. + Without this, it isn't possible to complete a build. + Tested on powerpc, powerpc64 and powerpc64le. + +M src/base/vdso_support.h + +commit 0a66dd3a6ac60e57d9c01f17309a40e2ebe06837 +Author: Christoph Müllner +Date: Sat Apr 7 09:00:09 2018 +0200 + + linux: add aarch64_ilp32 support. + + This patch adds aarch64 (arm64) ILP32 support by using + the proper syscalls for sys_fcntl(), sys_fstat(), sys_lseek() + and sys_mmap(). + + Signed-off-by: Christoph Müllner + +M src/base/linux_syscall_support.h + +commit 05dff0966362932631a2120eaeb8eebb50dd9300 +Author: Christoph Müllner +Date: Sat Apr 7 08:30:32 2018 +0200 + + Fix signature of sbrk. + + The manpage of sbrk says that its argument is of type intptr_t. + This patch fixes a compiler warning on gcc 7.3.0. + + Signed-off-by: Christoph Müllner + +M src/malloc_hook_mmap_linux.h + +commit 33ae0ed2ae7ce143276658be029c28ec6f2a73c9 +Author: Aliaksey Kandratsenka +Date: Mon Apr 9 20:57:29 2018 -0700 + + unbreak compilation on GNU/Linux i386 + + Recent commit to fix int overflow for implausibly huge allocation + added call to std::min. Notably, first arg was old size divided by + unsigned long 4. And on GNU/Linux i386 size_t is not long. So such + division was promoting first arg to unsigned long while second arg was + still size_t, so just unsigned. And that caused compilation to fail. + + Fix is droping 'ul'. + +M src/tcmalloc.cc + +commit 977e0d45003514d088e4bb83474c985094acee47 +Author: Christoph Müllner +Date: Sat Apr 7 08:35:42 2018 +0200 + + Remove not needed header in vdso_support.cc. + + Signed-off-by: Christoph Müllner + +M src/base/vdso_support.cc + +commit 36bfa9a4046109efa40ccc0806c72331de9c915b +Author: Mao +Date: Mon Mar 26 17:22:19 2018 +0800 + + Enable tcmalloc VDSO support only on x86 to reduce static initializers + + Background context + ------------------ + crrev.com/1466173002 switched the GN tcmalloc target from source_set + -> static_library. There are good reasons for keeping tcmalloc a + source_set (see "Note on static libraries" in [1]). However, in the + current state source_set was exposing extra static initializers in the + GN build which, are not present in the gyp build due to the linker gc + sections. + + Resolution of this CL + --------------------- + The fact that vdso_support.cc is GC-ed by the linker is the symptom + that such code is unreachable. A search in the codebase shows that the + only client is stacktrace_x86-inl.h, which depends on VDSO only when + defined(__linux__) && defined(__i386__) This CL is therefore matching + this condition in vdso_support.h and conditioning the #define + HAVE_VDSO_SUPPORT with the same conditions. + + [1] + https://chromium.googlesource.com/chromium/src/+/master/tools/gn/docs/cookbook.md + + References: + https://bugs.chromium.org/p/chromium/issues/detail?id=559766 + https://bugs.chromium.org/p/chromium/issues/detail?id=564618 + +M src/base/vdso_support.h + +commit 1cb5de6db9f30daa56a0b54652a7ff6da288c1bd +Author: Mao +Date: Mon Mar 26 17:28:28 2018 +0800 + + Explicitly prevent int overflow + +M src/tcmalloc.cc + +commit 8f63f2bb983e93b57e24a05964104f1d833c575b +Author: Aliaksey Kandratsenka +Date: Sat Mar 24 21:15:01 2018 -0700 + + Correctly detect presence of various functions in tcmalloc.h + + This fixes test miscompilations on some clang 6.0 + installations. Particularly issue #946. + + Defines tested by tcmalloc.h where totally wrong defines. configure + actually puts defines of HAVE_DECL_FOOBAR kind in config.h. Which is + what we're using now. + +M src/tcmalloc.h + +commit 736648887b0b27ec70a50f0954a614dd65c1eb12 +Author: Aliaksey Kandratsenka +Date: Sat Mar 24 15:54:48 2018 -0700 + + Don't test OOM handling of debugallocator + + This may fix issue #969. + + When testing OOM handling we set up sys allocator that fails memory + allocation. But debugallocator itself allocates some internal metadata + memory via malloc and crashes if those allocations fail. So + occasionally this test failed when debugallocator's internal malloc + ended up causing sys allocator. + + So instead of failing tests from time to time, we drop it for debug + allocator. It's OOM handling is already crashy anyways. + +M src/tests/tcmalloc_unittest.cc + +commit c4a8e00da41c43da7e78858e06f3153f09f6967d +Author: Aliaksey Kandratsenka +Date: Sat Mar 24 19:09:15 2018 -0700 + + Fix warning about one of CheckAddressBits functions unused + +M src/system-alloc.cc + +commit 47c99cf492fa340671fa89afec263b8d6e859755 +Author: Aliaksey Kandratsenka +Date: Sat Mar 24 18:29:06 2018 -0700 + + unbreak printing large span stats + + One of recent commits started passing kMaxPages to printf but not used + it. Thankfully compilers gave us warning. Apparently intention was to + print real value of kMaxPages, so this is what we're doing now. + +M src/tcmalloc.cc + +commit 34f78a2dcd8160b483d86474702785337bbeb7ac +Author: Aliaksey Kandratsenka +Date: Sun Mar 18 16:39:06 2018 -0700 + + bumped version to 2.7rc + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit db98aac55a90d45e9abe188c8a928c3561d3f223 +Author: Todd Lipcon +Date: Sat Mar 17 09:43:34 2018 -0700 + + Add a central free list for kMaxPages-sized spans + + Previously, the central free list with index '0' was always unused, + since freelist index 'i' tracked spans of length 'i' and there are no + spans of length 0. This meant that there was no freelist for spans of + length 'kMaxPages'. In the default configuration, this corresponds to + 1MB, which is a relatively common allocation size in a lot of + applications. + + This changes the free list indexing so that index 'i' tracks spans of + length 'i + 1', meaning that free list index 0 is now used and + freelist[kMaxPages - 1] tracks allocations of kMaxPages size (1MB by + default). + + This also fixes the stats output to indicate '>128' for the large + spans + stats rather than the incorrect '>255' which must have referred to a + historical value of kMaxPages. + + No new tests are added since this code is covered by existing tests. + +M docs/pageheap.dot +M docs/pageheap.gif +M docs/tcmalloc.html +M src/common.h +M src/page_heap.cc +M src/page_heap.h +M src/tcmalloc.cc + +commit d7be9385609328a03c5cfe775473a7dc8e014fd3 +Author: Aliaksey Kandratsenka +Date: Sun Mar 4 23:29:46 2018 -0800 + + implement more robust detection of sized delete support + + As reported in issue #954, osx clang compiler is able to optimize our + previous detection away while not really having runtime support for + sized delete. So this time we use AC_LINK_IFELSE and more robust code + to prevent compiler from optimizing away sized delete call. This + should reliably catch "bad" compilers. + + Special thanks to Alexey Serbin for reporting the issue, suggesting a + fix and verifying it. + + Fixes issue #954. + +M configure.ac + +commit f1d3fe4a21e339a3fd6e4592ee7444484a7b92dc +Author: Aliaksey Kandratsenka +Date: Sun Feb 25 13:55:53 2018 -0800 + + refactored handling of reverse span set iterator for correctness + + I.e. no more questionable memcpy and we run iterator's destructor when + we remove span from SpanSet. + +M src/page_heap.cc +M src/span.h + +commit 59c77be0fad2a49e31d51877985e7c48f73afcea +Author: Todd Lipcon +Date: Sun Feb 11 16:21:42 2018 -0800 + + Update docs for central page heap to reflect tree + +M docs/pageheap.dot +M docs/pageheap.gif +M docs/tcmalloc.html + +commit 06c9414ec423ffe442c047b2560555f9d5847b1d +Author: Aliaksey Kandratsenka +Date: Sat Jun 3 15:31:06 2017 -0700 + + Implemented O(log n) searching among large spans + + This is implemented via std::set with custom STL allocator that + delegates to PageHeapAllocator. Free large spans are not linked + together via linked list, but inserted into std::set. Spans also store + iterators to std::set positions pointing to them. So that removing + span from set is fast too. + + Patch implemented by Aliaksey Kandratsenka and Todd Lipcon based on + earlier research and experimentation by James Golick. + + Addresses issue #535 + + [alkondratenko@gmail.com: added Todd's fix for building on OSX] + [alkondratenko@gmail.com: removed unnecessary Span constructor] + [alkondratenko@gmail.com: added const for SpanSet comparator] + [alkondratenko@gmail.com: added operator != for STLPageHeapAllocator] + +M src/page_heap.cc +M src/page_heap.h +M src/page_heap_allocator.h +M src/span.h +M src/tests/tcmalloc_unittest.cc + +commit a42e44738a330783781541411392ba27df88b8b3 +Author: Ishan Arora +Date: Tue Jan 9 01:33:13 2018 +0530 + + typo in docs/tcmalloc.html + +M docs/tcmalloc.html + +commit 71bf09aabe93dbe390ebb54c57d3c5b3d627c142 +Author: Aliaksey Kandratsenka +Date: Sat Dec 9 09:58:31 2017 -0800 + + bumped version to 2.6.3 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 0bccb5e658762f30e6e3abbc40dc244e8f8911c1 +Author: Aliaksey Kandratsenka +Date: Sat Dec 9 08:51:19 2017 -0800 + + fix malloc fast path for patched windows functions + + malloc_fast_path now receives oom function instead of full allocation + function and windows/patch_function.cc wasn't updated until now. It + caused assertion failures as reported in issue #944. + +M src/windows/patch_functions.cc + +commit 8b1d13c631024ce7e80508c284c7bc5b1327e131 +Author: Stephan Zuercher +Date: Tue Dec 5 09:49:36 2017 -0800 + + configure.ac: use link check for std::align_val_t + +M configure.ac + +commit 36ab068baa3b07c083bd79029622aa382aeff84a +Author: Stephan Zuercher +Date: Tue Dec 5 09:31:38 2017 -0800 + + configure.ac: better test for -faligned-new + + XCode 9 provides only partial support for aligned new/delete when + -faligned-new + is specified. Require successful linking to enable aligned new/delete. + +M configure.ac + +commit 6a4b0799975576c2722daa75b35f6f65220d22b6 +Author: Aliaksey Kandratsenka +Date: Thu Nov 30 18:19:17 2017 +0000 + + bumped version to 2.6.2 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 22917145186bc8bbb6d98090d788ed7c87b282b1 +Author: Aliaksey Kandratsenka +Date: Thu Nov 30 16:36:33 2017 +0000 + + implement fast-path for memalign/aligned_alloc/tc_new_aligned + + We're taking advantage of "natural" alignedness of our size classes + and instead of previous loop over size classes looking for suitably + aligned size, we now directly compute right size. See align_size_up + function. And that gives us ability to use our existing malloc + fast-path to make memalign neat and fast in most common + cases. I.e. memalign/aligned_alloc now only tail calls and thus avoids + expensive prologue/epilogue and is almost as fast as regular malloc. + +M src/common.cc +M src/tcmalloc.cc + +commit 8b9728b02325a9bee9afd3957e506c111ed40d40 +Author: Aliaksey Kandratsenka +Date: Thu Nov 30 18:12:32 2017 +0000 + + add memalign benchmark to malloc_bench + +M benchmark/malloc_bench.cc + +commit 79c91a9810c928d7f6d0cb168c10ce470a714aa8 +Author: Aliaksey Kandratsenka +Date: Wed Nov 29 21:15:04 2017 +0000 + + always define empty PERFTOOLS_NOTHROW + + Because somehow clang still builds "this function will not throw" code + even with noexcept. Which breaks performance of + tc_malloc/tc_new_nothrow. The difference with throw() seems to be just + which function is called when unexpected exception happens. + + So we work around this sillyness by simply dropping any exception + specification when compiling tcmalloc. + +M src/tcmalloc.cc + +commit 03da6afff57c12845260997213b6ad89e420bab3 +Author: Aliaksey Kandratsenka +Date: Wed Nov 29 20:19:07 2017 +0000 + + unbreak throw declarations on operators new/delete + + We now clearly separate PERFTOOLS_NOTHROW (used for tc_XXX functions) + and throw()/noexcept (used for operators we define). + + The former is basically "nothrow() for our callers, nothing for + us". It is roughly equivalent of what glibc declares for malloc and + friends. If some exception-full C++ code calls such function it + doesn't have to bother setting up exception handling around such + call. Notably, it is still important for those functions to _not have + throw() declarations when we're building tcmalloc. Because C++ throw() + requires setting up handling of unexpected exceptions thrown from + under such functions which we don't want. + + The later is necessary to have operators new/delete definitions have + "correct" exception specifications to calm down compiler + warnings. Particularly older clang versions warn if new/delete aren't + defined with correct exception specifications. Also this commit fixes + annoying gcc 7+ warning (and gnu++14 mode) that complains about + throw() being deprecated. + +M src/base/basictypes.h +M src/libc_override.h +M src/libc_override_gcc_and_weak.h +M src/libc_override_redefine.h +M src/tests/tcmalloc_unittest.cc +M src/windows/get_mangled_names.cc + +commit 89fe59c8318b2f8cec8ce00182dd24c357252c96 +Author: Aliaksey Kandratsenka +Date: Wed Nov 29 13:37:50 2017 +0000 + + Fix OOM handling in fast-path + + Previous fast-path malloc implementation failed to arrange proper oom + handling for operator new. I.e. operator new is supposed to call new + handler and throw exception, which was not arranged in fast-path case. + + Fixed code now passes pointer for oom function to + ThreadCache::FetchFromCentralCache which will call it in oom + condition. Test is added to verify correct behavior. + + I've also updated some fast-path-related comments for more accuracy. + +M src/tcmalloc.cc +M src/tests/tcmalloc_unittest.cc +M src/thread_cache.cc +M src/thread_cache.h + +commit a29a0cf348e131d5b8ec26c39dabeac89cf13fcd +Author: Aliaksey Kandratsenka +Date: Tue Nov 28 14:43:11 2017 +0000 + + delete-trailing-whitespace on thread_cache.* + +M src/thread_cache.cc +M src/thread_cache.h + +commit e6cd69bdecde074c3c7a52ccb099eafcecf668dc +Author: Aliaksey Kandratsenka +Date: Wed Nov 29 19:49:18 2017 +0000 + + reintroduce aliasing for aligned delete + + Without aliasing performance is likely to be at least partially + affected. There is still concern that aliasing between functions of + different signatures is not 100% safe. We now explicitly list of + architectures where aliasing is known to be safe. + +M src/tcmalloc.cc + +commit fb30c3d435c4712785a50f8a422c76ad490a12b2 +Author: Aliaksey Kandratsenka +Date: Wed Nov 29 19:10:23 2017 +0000 + + fully disable aligned new on windows for now + +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit 7efb3ecf37d88edf9cf9a43efb89b425eaf81d5e +Author: Andrey Semashev +Date: Sat Sep 30 17:47:35 2017 +0300 + + Add support for C++17 operator new/delete for overaligned types. + + - Add auto-detection of std::align_val_t presence to configure + scripts. This + indicates that the compiler supports C++17 operator new/delete + overloads + for overaligned types. + + - Add auto-detection of -faligned-new compiler option that appeared + in gcc 7. + The option allows the compiler to generate calls to the new + operators. It is + needed for tests. + + - Added overrides for the new operators. The overrides are enabled + if the + support for std::align_val_t has been detected. The implementation + is mostly + based on the infrastructure used by memalign, which had to be + extended to + support being used by C++ operators in addition to C functions. In + particular, + the debug version of the library has to distinguish memory + allocated by + memalign from that by operator new. The current implementation + of sized + overaligned delete operators do not make use of the supplied + size argument + except for the debug allocator because it is difficult to calculate + the exact + allocation size that was used to allocate memory with + alignment. This can be + done in the future. + + - Removed forward declaration of std::nothrow_t. This was not + portable as + the standard library is not required to provide nothrow_t + directly in + namespace std (it could use e.g. an inline namespace within + std). The + header needs to be included for std::align_val_t anyway. + + - Fixed operator delete[] implementation in libc_override_redefine.h. + + - Moved TC_ALIAS definition to the beginning of the file in + tcmalloc.cc so that + the macro is defined before its first use in nallocx. + + - Added tests to verify the added operators. + + [alkondratenko@gmail.com: fixed couple minor warnings, and some + whitespace change] + [alkondratenko@gmail.com: removed addition of TC_ALIAS in debug + allocator] + Signed-off-by: Aliaksey Kandratsenka + +M Makefile.am +M configure.ac +M src/debugallocation.cc +M src/gperftools/tcmalloc.h.in +M src/libc_override_gcc_and_weak.h +M src/libc_override_redefine.h +M src/tcmalloc.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit 7a6e25f3b143c35ed6fff8bb2c0f8de1ab348a39 +Author: Andrew Morrow +Date: Tue Nov 7 15:57:17 2017 -0500 + + Add new statistics for the PageHeap + + [alkondratenko@gmail.com: addressed init order mismatch warning] + Signed-off-by: Aliaksey Kandratsenka + +M src/page_heap.cc +M src/page_heap.h +M src/tcmalloc.cc + +commit 6e3a702fb9c86eb450f22b326ecbceef4b0d6604 +Author: Jianbo Yang +Date: Tue Oct 17 01:09:18 2017 +0800 + + Fix data race setting size_left_ in ThreadCache::SetMaxSize + + This commit is to fix the data race in ThreadCache::SetMaxSize. + ThreadCache::size_left_ is removed and ThreadCache::size_ is + added. ThreadCache::size_left_ was introduced for optimization. + It is updated in several functions of ThreadCache, including the + ThreadCache::SetMaxSize. But thread A can update size_left_ of + thread B via SetMaxSize without protection or synchronization. + + There should not be data race around ThreadCache::size_, for it + isn't accessed by multi threads. + + The optimization of tail-call in tc_{malloc, new, free} is kept + and no other logics are affected. + +M src/thread_cache.cc +M src/thread_cache.h + +commit 235471f96564aa95354839bb135661e561966001 +Author: cs-lee +Date: Sun Aug 6 04:57:42 2017 -0700 + + fix memory leak in Symbolize function + + [alkondratenko@gmail.com: reworded commit message] + Signed-off-by: Aliaksey Kandratsenka + +M src/symbolize.cc + +commit 47efdd60f596f7180689337cbba2dab35539ba98 +Author: cs-lee +Date: Sun Aug 6 04:51:52 2017 -0700 + + Added mising va_end() in TracePrintf function + + Normally the va_end function does not do anything, + but it should be called because some platforms need it. + + [alkondratenko@gmail.com: reworded commit message] + Signed-off-by: Aliaksey Kandratsenka + +M src/debugallocation.cc + +commit 497b60ef0fa93ed41ccacf6ffd0d536789401d29 +Author: Vladimir +Date: Fri Jul 14 15:13:32 2017 +0300 + + Implemented GetProgramInvocationName on FreeBSD + + Few lines of code was taken from + /usr/src/contrib/libexecinfo/backtrace.c + + [alkondratenko@gmail.com: updated commit message + Signed-off-by: Aliaksey Kandratsenka + +M src/symbolize.cc + +commit ac072a3fc768b9699b1e809a379f576aa3e48983 +Author: Aliaksey Kandratsenka +Date: Sat Sep 23 14:55:33 2017 -0700 + + Revert "Ignore current_instance heap allocation when leak sanitizer + is enabled" + + This reverts commit 70a35422b5509a456584b132ad8ce4466af323ea. + +M Makefile.am +M src/malloc_extension.cc + +commit fb5987d57913867e3b0f20490461ea55bfabe9ee +Author: Aliaksey Kandratsenka +Date: Sat Sep 23 14:55:20 2017 -0700 + + Revert "Ensure that lsan flags are appended on all necessary targets" + + This reverts commit a3bf61ca81b68e7792739c451aceef00cf7d7d03. + +M Makefile.am + +commit 5815f02105acd5d7fd0e6ec038a9e96ccc36911f +Author: Aliaksey Kandratsenka +Date: Sat Sep 16 21:14:23 2017 -0700 + + Use safe getenv for setting up backtrace capturing method + + This code runs very early, so using special "early" version of getenv + is reasonable. It should fix issue #912. + +M src/stacktrace.cc + +commit aab4277311759b32ae8c442b49edf002230ea165 +Author: Dorin Lazăr +Date: Thu Sep 21 22:11:49 2017 +0300 + + Fixed LTO warning about the mismatch between return values for + ProfilingIsEnabledForAllThreads() + +M src/heap-checker.cc + +commit d406f2285390c402e824dd28e6992f7f890dcdf9 +Author: Aliaksey Kandratsenka +Date: Sat Aug 5 22:05:10 2017 -0700 + + implement support for C11 aligned_alloc + + Just like glibc does, we simply alias it to memalign. + +M Makefile.am +M src/libc_override_gcc_and_weak.h +M src/libc_override_redefine.h + +commit 92a27e41a137704772479277786d035763938921 +Author: Piotr Sikora +Date: Mon Aug 21 15:06:23 2017 -0700 + + Fix build on macOS. + + Fixes #910. + + Signed-off-by: Piotr Sikora + +M Makefile.am + +commit e033431e5a9e02e4d1882bb6fcd212c4fab56173 +Author: Khem Raj +Date: Sun Jul 16 19:28:17 2017 -0700 + + include fcntl.h for loff_t definition + + Fixes + linux_syscall_support.h:2641:26: error: 'loff_t' has not been declared + + Signed-off-by: Khem Raj + +M src/base/linux_syscall_support.h + +commit e41bc414048eb4a37743e294bed3f1c63a1fa559 +Author: Khem Raj +Date: Sat Jul 1 13:21:21 2017 -0700 + + Use ucontext_t instead of struct ucontext + + Newer glibc has dropped the ucontext tag from exposing + + Signed-off-by: Khem Raj + +M src/stacktrace_powerpc-linux-inl.h + +commit bf840dec0495e17f5c8403e68e10b9d6bf05c559 +Author: Aliaksey Kandratsenka +Date: Sun Jul 9 14:55:33 2017 -0700 + + bumped version to 2.6.1 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 2d220c7e26bd279ec87f9d1fc694ca5114b20bee +Author: Romain Geissler +Date: Sun Jun 18 15:21:19 2017 +0200 + + Replace "throw()" by "PERFTOOLS_NOTHROW" + + Automatically done with: + sed -e 's/\ +Date: Sun Jun 18 15:16:16 2017 +0200 + + Add PERFTOOLS_THROW where necessary (as detected by GCC). + +M src/base/basictypes.h +M src/libc_override_gcc_and_weak.h +M src/tests/tcmalloc_unittest.cc + +commit e5fbd0e24e19bf3c9a8777cfc78e6188c5557025 +Author: Romain Geissler +Date: Sun Jun 18 15:05:46 2017 +0200 + + Rename PERFTOOLS_THROW into PERFTOOLS_NOTHROW. + + Automatically done with: + sed -e 's/\/PERFTOOLS_NOTHROW/g' -i $(git grep + -l PERFTOOLS_THROW) + +M src/debugallocation.cc +M src/gperftools/tcmalloc.h.in +M src/tcmalloc.cc +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit eeb7b84c20146c0e2e039ce72a2ea083a94ba80d +Author: Aliaksey Kandratsenka +Date: Sat Jul 8 15:23:37 2017 -0700 + + Register tcmalloc atfork handler as early as possible + + This is what other mallocs do (glibc malloc and jemalloc). The idea is + malloc is usually initialized very eary. So if we register atfork + handler at that time, we're likely to be first. And that makes our + atfork handler a bit safer, since there is much less chance of some + other library installing their "take all locks" handler first and + having fork take malloc lock before library's lock and deadlocking. + + This should address issue #904. + +M src/static_vars.cc +M src/static_vars.h +M src/thread_cache.cc + +commit 208c26caeff24fd8c1defea80cb723ec1ab4bf06 +Author: Aliaksey Kandratsenka +Date: Tue Jul 4 19:50:04 2017 -0700 + + Add initial syscall support for mips64 32-bit ABI + + This applies patch by Adhemerval Zanella from + https://github.com/gperftools/gperftools/issues/845. + + Only malloc (i.e. tcmalloc_minimal) was tested to work so far. + +M src/base/linux_syscall_support.h +M src/malloc_hook_mmap_linux.h + +commit a3bf61ca81b68e7792739c451aceef00cf7d7d03 +Author: Francis Ricci +Date: Wed Jul 5 12:39:41 2017 -0400 + + Ensure that lsan flags are appended on all necessary targets + +M Makefile.am + +commit 97646a193237af0f941e5bd3078eb72edbc2d548 +Author: Aliaksey Kandratsenka +Date: Tue Jul 4 21:02:34 2017 -0700 + + Add missing NEWS entry for recent 2.6 release + + Somehow I managed to miss this last commit in 2.6 release. So lets add + it now even if it is too late. + +M NEWS + +commit 4be05e43a1adab9ceea9bdaaae546fb938f0a86c +Author: Aliaksey Kandratsenka +Date: Tue Jul 4 20:35:25 2017 -0700 + + bumped version up to 2.6 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 70a35422b5509a456584b132ad8ce4466af323ea +Author: Francis Ricci +Date: Thu Jun 15 11:04:33 2017 -0400 + + Ignore current_instance heap allocation when leak sanitizer is enabled + + Without this patch, any user program that enables LeakSanitizer will + see a leak from tcmalloc. Add a weak hook to __lsan_ignore_object, + so that if LeakSanitizer is enabled, the allocation can be ignored. + +M Makefile.am +M src/malloc_extension.cc + +commit 6eca6c64fabbff55c43a78537e466312524b3acd +Author: Aliaksey Kandratsenka +Date: Sat Jul 1 18:48:58 2017 -0700 + + Revert "issue-654: [pprof] handle split text segments" + + This reverts commit 8c3dc52fcfe02412a529769a22cbc75388a5d368. + + People have reported issues with this so lets stay safe and use older + even if less powerful code. + +M src/pprof + +commit a495969cb6157cc361fc03228ae12ff7c0ecac4b +Author: KernelMaker +Date: Wed May 24 16:46:49 2017 +0800 + + update the prev_class_size in each loop, or the min_object_size of + tcmalloc.thread will always be 1 when calling GetFreeListSizes + +M src/tcmalloc.cc + +commit 163224d8af5abdbbd8208ad6d37f13fb450af46f +Author: Kim Gräsman +Date: Fri May 26 13:09:03 2017 +0200 + + Document HEAPPROFILESIGNAL environment variable + +M docs/heapprofile.html + +commit 5ac82ec5b96d24219efd4c8aec47a45466eabd00 +Author: Aliaksey Kandratsenka +Date: Mon May 29 13:07:39 2017 -0700 + + added stacktrace capturing benchmark + +M .gitignore +M Makefile.am +A benchmark/getcontext_light.cc +A benchmark/unwind_bench.cc + +commit c571ae2fc9433e958f29b3c3525d34c22a9cb884 +Author: Aliaksey Kandratsenka +Date: Mon May 22 19:04:20 2017 -0700 + + 2.6rc4 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit f2bae51e7e609855c26095f14ffbb84082694acb +Author: Aliaksey Kandratsenka +Date: Mon May 22 18:58:15 2017 -0700 + + Revert "Revert "disable dynamic sized delete support by default"" + + This reverts commit b82d89cb7c8781a6028f6f5959cabdc5a273aec3. + + Dynamic sized delete support relies on ifunc handler being able to + look up environment variable. The issue is, when stuff is linked with + -z now linker flags, all relocations are performed early. And sadly + ifunc relocations are not treated specially. So when ifunc handler + runs, it cannot rely on any dynamic relocations at all, otherwise + crash is real possibility. So we cannot afford doing it until (and if) + ifunc is fixed. + + This was brought to my attention by Fedora people at + https://bugzilla.redhat.com/show_bug.cgi?id=1452813 + +M configure.ac + +commit 6426c0cc8049dd50a681dc337ac9962577d5fa14 +Author: Aliaksey Kandratsenka +Date: Sun May 21 22:55:29 2017 -0700 + + 2.6rc3 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 0c0e2fe43b5095d19470abdc3b4d83613fe37c6d +Author: Aliaksey Kandratsenka +Date: Mon May 22 02:39:29 2017 -0700 + + enable 48-bit page map on msvc as well + +M src/common.h + +commit 83d6818295cb337b6201fe307e15755df9dcd47f +Author: Aliaksey Kandratsenka +Date: Mon May 22 02:38:13 2017 -0700 + + speed up 3-level page map access + + There is no need to have pointer indirection for root node. This also + helps the case of early free of garbage pointer because we didn't + check root_ pointer for NULL. + +M src/pagemap.h + +commit f7ff175b92df5577aef9caf3fb02f9ff37b822ca +Author: Aliaksey Kandratsenka +Date: Sun May 21 23:28:48 2017 -0700 + + add configure-time warning on unsupported backtrace capturing + + Both libgcc and libc's backtrace() are not really options for stack + trace capturing from inside profiling signal handler. So lets warn + people. + +M configure.ac + +commit cef582350c952bad761476d01ea64bb4087371ce +Author: Aliaksey Kandratsenka +Date: Sun May 21 23:15:59 2017 -0700 + + align fast-path functions only if compiler supports that + + Apparently gcc only supports __attribute__((aligned(N))) on functions + only since version 4.3. So lets test it in configure script and only + use when possible. We now use CACHELINE_ALIGNED_FN macro for aligning + functions. + +M configure.ac +M src/base/basictypes.h +M src/tcmalloc.cc + +commit bddf862b189c4508d5212f6e0e8ea81c4dd18811 +Author: Aliaksey Kandratsenka +Date: Sun May 21 22:24:19 2017 -0700 + + actually support very early freeing of NULL + + This was caught by unit tests on centos 5. Apparently some early + thingy is trying to do vprintf which calls free(0). Which used to + crash since before size class cache is initialized it'll report + hit (with size class 0) for NULL pointer, so we'd miss the case of + checking NULL pointer free and crash. + + The fix is to check for IsInited in the case when thread cache is + null, and if so then we escalte to free_null_or_invalid. + +M src/tcmalloc.cc +M src/thread_cache.cc + +commit 07a124d8c16bc7d52524ceb9f50d7a65b868e129 +Author: Aliaksey Kandratsenka +Date: Sun May 21 22:22:21 2017 -0700 + + don't use arg-ful constructor attribute for early nallocx test + + 101 is not very early anyways and arg-ful constructor attribute is + only supported since gcc 4.3 (and e.g. rhel 5's compiler fails to + compile it). So there seems to be very little value trying to ask for + priority of 101. + +M src/tests/tcmalloc_unittest.cc + +commit 5346b8a4def33915e6f877e308fb948f570a6120 +Author: Aliaksey Kandratsenka +Date: Sun May 21 22:18:01 2017 -0700 + + don't depend on SIZE_MAX definition in sampler.cc + + It was reported that SIZE_MAX isn't getting defined in C++ mode when + C++ standard is less than c++11. Because we still want to support + non-c++11 systems (for now), lets make it simple and not depend on + SIZE_MAX (original google-internal code used + std::numeric_limits::max, but that failed to compile on + msvc). + + Fixes issue #887 and issue #889. + +M src/sampler.cc + +commit 50125d8f70007fb2aa4d1c87df6a3092a3371edf +Author: Aliaksey Kandratsenka +Date: Mon May 15 00:02:43 2017 -0700 + + 2.6rc2 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit a5e8e42a47fc0175c8044d0d77bf192b03347964 +Author: Aliaksey Kandratsenka +Date: Sun May 14 23:45:08 2017 -0700 + + don't link-in libunwind if libunwind.h is missing + + I got report that some build environments for + https://github.com/lyft/envoy are having link-time issue due to + linking libunwind. It was happening despite libunwind.h being present, + which is clear bug as without header we won't really use libunwind. + +M configure.ac + +commit e92acdf98db229e8dc84993fd8895d55e6c69129 +Author: Rajalakshmi Srinivasaraghavan +Date: Wed Apr 26 06:46:43 2017 -0300 + + Fix compilation error for powerpc32 + + Fix the following compilation error for powerpc32 platform when using + latest glibc. + error: ‘siginfo_t’ was not declared in this scope + +M src/stacktrace_powerpc-linux-inl.h + +commit b48403a4b065830129e238feffe022abd93af807 +Author: Aliaksey Kandratsenka +Date: Sun Apr 16 21:45:51 2017 -0700 + + 2.6rc + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 53f15325d93fbe0ba17bb3fac3da86ffd3f0f1ad +Author: Aliaksey Kandratsenka +Date: Sun May 14 20:24:27 2017 -0700 + + fix compilation of tcmalloc_unittest.cc on older llvm-gcc + +M src/tests/tcmalloc_unittest.cc + +commit b1d88662cb4a38ee47aa48076745898033526f9d +Author: Aliaksey Kandratsenka +Date: Sun Apr 2 19:27:00 2017 -0700 + + change size class to be represented by 32 bit int + + This moves code closer to Google-internal version and provides for + slightly tighter code encoding on amd64. + +M src/common.h +M src/packed-cache-inl.h +M src/page_heap.cc +M src/page_heap.h +M src/tcmalloc.cc +M src/tests/packed-cache_test.cc +M src/thread_cache.cc +M src/thread_cache.h + +commit 991f47a159f0e169883f06686f13c31688fa2bf0 +Author: Aliaksey Kandratsenka +Date: Thu Feb 2 15:58:08 2017 -0800 + + change default transfer batch back to 32 + + Some tensorflow benchmarks are seeing large regression with elevated + values. So lets stick to old safe default until we understand how + to make + larger values work for all workloads. + +M src/common.cc + +commit 7bc34ad1f60be2df6ca38f4bffdba4daa9aa9a7d +Author: Aliaksey Kandratsenka +Date: Thu Feb 2 15:38:41 2017 -0800 + + support different number of size classes at runtime + + With TCMALLOC_TRANSFER_NUM_OBJ environment variable we can change + transfer batch size. And with that comes slightly different number of + size classes depending on value of transfer batch size. + + We used to have hardcoded number of size classes, so we couldn't + really support any batch size setting. + + This commit adds support for dynamic number of size classes (runtime + value returned by Static::num_size_classes()). + +M src/central_freelist.cc +M src/common.cc +M src/common.h +M src/page_heap.cc +M src/static_vars.cc +M src/static_vars.h +M src/tcmalloc.cc +M src/thread_cache.cc +M src/thread_cache.h + +commit 4585b78c8dae9183dbf5f124c0343a9f1244ed67 +Author: Aliaksey Kandratsenka +Date: Tue Feb 21 00:27:39 2017 -0800 + + massage allocation and deallocation fast-path for performance + + This is significant speedup of fast-path of malloc. Large part comes + from avoiding expensive function prologue/epilogue. Which is achieved + by making sure that tc_{malloc,new,free} etc are small functions that + do only tail-calls. We keep only critical path in those functions and + tail-call to slower "full" versions when we need to deal with less + common case. This helps compiler generate much tidier code. + + Fast-path readyness check is now different too. We used to have "min + size for slow path" variable, which was set to non-zero value when we + know that thread cache is present and ready. We now have use + thread-cache pointer not equal to NULL as readyness check. + + There is special ThreadCache::threadlocal_data_.fast_path_heap copy of + that pointer that can be temporarily nulled to disable malloc fast + path. This is used to enable emergency malloc. + + There is also slight change to tracking thread cache size. Instead of + tracking total size of free list, it now tracks size headroom. This + allows for slightly faster deallocation fast-path check where we're + checking headroom to stay above zero. This check is a bit faster than + comparing with max_size_. + +M src/linked_list.h +M src/tcmalloc.cc +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/patch_functions.cc + +commit 5964a1d9c98ea3c178435ff01f9b06e03eeda58d +Author: Aliaksey Kandratsenka +Date: Tue Feb 21 00:42:29 2017 -0800 + + always inline a number of hot functions + +M src/page_heap.h +M src/pagemap.h +M src/tcmalloc.cc +M src/thread_cache.h + +commit e419b7b9a66c39b44115b01520fb25a5100cec83 +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 21:11:14 2017 -0800 + + introduce ATTRIBUTE_ALWAYS_INLINE + +M src/base/basictypes.h +M src/tcmalloc.cc + +commit 7d588da7ec4f315ea2d02824d7e8813b0f95171d +Author: Aliaksey Kandratsenka +Date: Sun Dec 18 18:36:57 2016 -0800 + + synchronized Sampler implementation with Google-internal version + + This is mostly dropping FastLog2 which was never necessary for + performance, and making sampler to be called always, even if sampling + is disabled (this benefits more for always-sampling case of Google + fork). + + We're also getting TryRecordAllocationFast which is not used yet, but + will be as part of subsequent fast-path speedup commit. + +M src/sampler.cc +M src/sampler.h +M src/static_vars.cc +M src/tests/sampler_test.cc +M src/thread_cache.h + +commit 27da4ade70d45312bfdf334aa8cf0d63bf78df14 +Author: Aliaksey Kandratsenka +Date: Tue Feb 21 00:41:43 2017 -0800 + + reduce size of class_to_size_ array + + Since 32-bit int is enough and accessing smaller array will use a bit + less of cache. + +M src/common.h +M src/tcmalloc.cc +M src/thread_cache.cc +M src/thread_cache.h + +commit 335f09d4e43a8413642e17e5ac374f925906c4e3 +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 23:49:15 2017 -0800 + + use static location for pageheap + + Makes it a bit faster to access, since we're dropping pointer + indirection. + +M src/static_vars.cc +M src/static_vars.h + +commit 6ff332fb517734cf01e86272fe37521b7155c995 +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 23:37:33 2017 -0800 + + move size classes map earlier in SizeMap + + Since we access them more often, having at least one of them at offset + 0 makes pi{c,e} code a bit smaller. + +M src/common.h + +commit 121b1cb32e7416ecb7b0c739588f1bd916c4913a +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 22:57:43 2017 -0800 + + slightly faster size class cache + + Lower bits of page index are still used as index into hash + table. Those lower bits are zeroed, or-ed with size class and + placed into hash table. So checking is just loading value from hash + table, xoring with higher bits of address and checking if resultant + value is lower than 128. Notably, size class 0 is not considered + "invalid" anymore. + +M src/central_freelist.cc +M src/packed-cache-inl.h +M src/page_heap.cc +M src/page_heap.h +M src/tcmalloc.cc +M src/tests/packed-cache_test.cc + +commit b57c0bad41700238f524b28483a1c6c18c0a621f +Author: Aliaksey Kandratsenka +Date: Sun Apr 16 23:15:16 2017 -0700 + + init tcmalloc prior to replacing system alloc + + Currently on windows, we're depending on uninitialized tcmalloc + variables to detect freeing foreign malloc's chunks. This works + somewhat by chance due to 0-initialized size classes cache working as + cache with no values. But this is about to change, so lets do explicit + initialization. + +M src/tcmalloc.cc + +commit 71fa9f873065e3d7c1f4ce0581d26b6498712f00 +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 21:17:48 2017 -0800 + + use 2-level page map for 48-bit addresses + + 48 bits is size of x86-64 and arm64 address spaces. So using 2 levels + map for them is slightly faster. We keep 3 levels for small-but-slow + configuration, since 2 levels consume a bit more memory. + + This is partial port of Google-internal commit by Sanjay + Ghemawat (same idea, different implementation). + +M src/page_heap.h +M src/pagemap.h + +commit bad70249dd5c829b4981aecdc25953800d6745c3 +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 21:12:58 2017 -0800 + + use 48-bit addresses on 64-bit arms too + +M src/common.h + +commit 5f12147c6dbfe2cfbdc7553521fe0110073135f0 +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 21:03:58 2017 -0800 + + use hidden visibility for some key global variables + + So that our -fPIC code is faster + +M src/base/basictypes.h +M src/static_vars.h + +commit dfd53da578137d5962fe8d588980870bb0ab8aa9 +Author: Aliaksey Kandratsenka +Date: Sun Jan 22 21:08:51 2017 -0800 + + set ENOMEM in handle_oom + +M src/tcmalloc.cc + +commit 14fd551072426cef317f43d587f91004d4fdae75 +Author: Aliaksey Kandratsenka +Date: Sun Jan 8 06:02:04 2017 +0300 + + avoid O(N²) in thread cache creation code + +M src/thread_cache.cc + +commit 507a105e849422d5ceff4348d38aaf72371a6161 +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 14:25:10 2016 -0800 + + pass original size to DoSampledAllocation + + It makes heap profiles more accurate. Google's internal malloc + is doing + it as well. + +M src/tcmalloc.cc + +commit bb77979dea796ab743e1308af25e9259ec97f2b1 +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 18:10:19 2016 -0800 + + don't declare throw() on malloc funtions since it is faster + + Apparently throw() on functions actually asks compiler to generate + code + to detect unexpected exceptions. Which prevents tail calls + optimization. + + So in order to re-enable this optimization, we simply don't tell + compiler about throw() at all. C++11 noexcept would be even better, + but + it is not universally available yet. + + So we change to no exception specifications. Which at least for gcc & + clang on Linux (and likely for all ELF platforms, if not just all) + really eliminates all overhead of exceptions. + +M src/debugallocation.cc +M src/gperftools/tcmalloc.h.in +M src/tcmalloc.cc +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit 89c74cb79ca41cd75a1f9131af4ea2ab362593ae +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 20:26:40 2016 -0800 + + handle duplicate google_malloc frames in malloc hook stack trace + + Subsequent optimization may cause multiple malloc functions in + google_malloc section to be in call stack. Particularly when fast-path + malloc function calls slow-path and compiler chooses to implement such + call as regular call instead of tail-call. + + Because we need stacktrace just until first such function, once + we find + innermost such frame, we're simply checking if next outer frame + is also + google_malloc and consider it instead. + +M src/malloc_hook.cc + +commit 0feb1109ac957144a50d964b0ff244a6a286174a +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 21:08:57 2016 -0800 + + fix stack trace capturing in debug malloc + + Particularly, hardcoded skip count was relying on certain behavior of + compiler. Namely, that tail calls inside DebugDeallocate path are not + actually implemented as tail calls. + + New implementation is using google_malloc section as a marker + of malloc + boundary. But in order for this to work, we have to prevent + tail-call in + debugallocation's tc_XXX functions. Which is achieved by doing + volatile + read of static variable at the end of such functions. + +M src/debugallocation.cc + +commit 0506e965ee5184490fbe7acea470458562128a79 +Author: Aliaksey Kandratsenka +Date: Sun Dec 18 18:36:00 2016 -0800 + + replace LIKELY/UNLIKELY with PREDICT_{TRUE,FALSE} + + Google-internal code is using PREDICT_TRUE/FALSE, so we should be + doing it too. + +M src/base/basictypes.h +M src/common.cc +M src/common.h +M src/emergency_malloc.h +M src/malloc_hook-inl.h +M src/tcmalloc.cc +M src/thread_cache.h + +commit 59a4987054021eaf24143a27cf01252fafb5052d +Author: Aliaksey Kandratsenka +Date: Sun Mar 13 16:04:43 2016 -0700 + + prevent inlining ATTRIBUTE_SECTION functions + + So that their code is always executing in prescribed section. + +M src/base/basictypes.h + +commit ebb575b8a0153a70f43fd1c3ec33fe30f94c97d0 +Author: Aliaksey Kandratsenka +Date: Thu Feb 2 15:41:13 2017 -0800 + + Revert "enabled aggressive decommit by default" + + This reverts commit 7da5bd014d77ddaf694054b1e3ae0a3ef92ab384. + + Some tensorflow benchmarks are getting slower with aggressive + decommit. + +M src/static_vars.cc +M src/tests/tcmalloc_unittest.sh + +commit b82d89cb7c8781a6028f6f5959cabdc5a273aec3 +Author: Aliaksey Kandratsenka +Date: Sun Jan 22 13:15:39 2017 -0800 + + Revert "disable dynamic sized delete support by default" + + This reverts commit 06811b3ae4c5365880898148d188ae91d20f52f2. + +M configure.ac + +commit fac0bb44d5661946d9839496ddf104942dd00abe +Author: Aliaksey Kandratsenka +Date: Sun Jan 22 13:11:05 2017 -0800 + + Do not depend on memchr in commandlineflags::StringToBool + + It lets us use it from inside ifunc handler. + +M src/base/commandlineflags.h + +commit 7d49f015a01e35155517332a2dfd95f16b568939 +Author: Aliaksey Kandratsenka +Date: Sun Jan 22 13:08:34 2017 -0800 + + Make GetenvBeforeMain work inside ifunc handler + + Depending on things such us strlen, which are ifunc-ed themselves is + not supported from inside ifunc handler. + + Thus we implement strlen, memchr and memcmp in slow naive C++ just for + that place. + +M src/base/sysinfo.cc + +commit a2550b6309153c250f67255b6271ec988cc7d0fb +Author: Aliaksey Kandratsenka +Date: Sun Feb 26 23:46:18 2017 -0800 + + turn bench_fastpath_throughput into actual throughput benchmark + + Previously we bumped size by 16 between iterations, but for many size + classess that gave is subsequent iteration into same size + class. Multiplying by prime number randomizes sizes more so speeds up + this benchmark on at least modern x86. + +M benchmark/malloc_bench.cc + +commit b762b1a4923f769487de818175655c1683d84db5 +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 14:12:02 2016 -0800 + + added sized free benchmarks to malloc_bench + +M benchmark/malloc_bench.cc + +commit 71ffc1cd6b3ea99c97ed6d0e16caeb9d1b20eec7 +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 14:11:40 2016 -0800 + + added free lists randomization step to malloc_bench + +M benchmark/malloc_bench.cc + +commit 732dfeb83d726de0aea47f0e6aa2abff3e0ad680 +Author: Aliaksey Kandratsenka +Date: Sun Jan 22 13:57:31 2017 -0800 + + Run StartStopNoOptionsEmpty profiledata unittest + + Somehow we had this test, but didn't arrange to actually run it. GCC + gave warning and now we do. + +M src/tests/profiledata_unittest.cc + +commit cbb312fbe8022378c4635b3075a80a7827555170 +Author: Aliaksey Kandratsenka +Date: Sun Dec 18 11:08:54 2016 -0800 + + aggressive decommit: only free necessary regions and fix O(N²) + + We used to decommit (with MADV_FREE or MADV_DONTNEED) whole combined + span when freeing span in aggressive decommit mode. The issue with + that is preceding or following span with which we combined span we're + freeing could be freed already and fairly large. By passing all of + that memory to decommit, we force kernel to scan all of those pages. + + When mass-freeing many objects old behavior led to O(N^2) behavior + since freeing single span could lead to MADV_{FREE,DONTNEED}-ing of + most of the heap. + + New implementation just does decommit of individual bits as needed. + + While there, I'm also adding locking to calls of + PageHeap::{Get,Set}AggressiveDecommit. + + This partially (or mostly) fixes issue #839. + +M src/page_heap.cc +M src/page_heap.h +M src/tcmalloc.cc + +commit 6d98223a9035ec1c5e9a7eb0196b21021d48a41f +Author: Aliaksey Kandratsenka +Date: Sun Feb 12 17:12:44 2017 -0800 + + don't build with -fno-exceptions + + It looks like, in past it could produce better code. But since + unwinding is totally different since almost forever now, there is no + perfomance benefit of it anymore. + +M Makefile.am + +commit d6a1931cce303ea279b744c9b438686e4f5994e5 +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 15:33:10 2016 -0800 + + fixed warning in casting heap of checker's main_thread_counter + + I.e. compiler didn't like int to void * casting and upcasting to + intptr_t first (which has same size as void *) makes it happier. + +M src/heap-checker.cc + +commit 5c778701d98c642ecff97d044cd1c0b8b862aba3 +Author: Aliaksey Kandratsenka +Date: Sun Feb 12 17:54:59 2017 -0800 + + added tcmalloc minimal unittest with ASSERTs checked + +M .gitignore +M Makefile.am + +commit a9167617abbcebe9d472141c53a20ce00c8c8d75 +Author: Aliaksey Kandratsenka +Date: Sat Apr 29 19:09:47 2017 -0700 + + drop unused g_load_map variable in patch_functionc.cc + +M src/windows/patch_functions.cc + +commit d52e56dcb5aad0521ccc67d7e57dfcb8d41ea568 +Author: Aliaksey Kandratsenka +Date: Sat Apr 29 19:06:55 2017 -0700 + + don't compare integer to NULL + +M src/windows/preamble_patcher.cc + +commit bae00c0341f49ade473d24c117226552a59d3e75 +Author: Aliaksey Kandratsenka +Date: Sun Apr 23 20:33:16 2017 -0700 + + add fake_stacktrace_scope to few msvc projects + + Otherwise it predictably fails at linking phase due to missing + symbols. + +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit 79aab4fed40f9aac03dacb32a108861eff689beb +Author: Aliaksey Kandratsenka +Date: Sun Apr 16 22:17:56 2017 -0700 + + correctly dllexport nallocx on windows + +M src/gperftools/nallocx.h +M src/tcmalloc.cc + +commit b010895a088703f512cb0e225c838306b2904069 +Author: Aliaksey Kandratsenka +Date: Sun Apr 30 18:32:10 2017 -0700 + + don't undef PERFTOOLS_DLL_DECL + + This is not necessary and will help adding more headers with + dll-exported functions. + +M src/gperftools/tcmalloc.h.in +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit 491b1aca7edbbaed9ea6f7baaa547a35cf385130 +Author: Aliaksey Kandratsenka +Date: Sat Apr 29 16:46:21 2017 -0700 + + don't try to use pthread_atfork on windows + +M src/maybe_threads.cc +M src/windows/mingw.h + +commit 691045b95761bedb9170d758be82f9b2f15c673a +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 14:41:28 2016 -0800 + + suppress warnings from legacy headers while building legacy headers + test + +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/google/malloc_hook.h +M src/google/malloc_hook_c.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/google/tcmalloc.h +M src/tests/simple_compat_test.cc + +commit 22f7ceb97a63bcbc9d824a80916bb7a809fad1f2 +Author: Aliaksey Kandratsenka +Date: Sat Apr 29 15:25:06 2017 -0700 + + use unsigned for few flags in mini_disassembler_types.h + + We're initializing them with value that doesn't fit into signed 32-bit + int and somehow mingw version that I have not just warns, but actually + errors on that. + +M src/windows/mini_disassembler_types.h + +commit 9b17a8a5ba1c8320d12c6e6df0ab54ff218b50e6 +Author: Mostyn Bramley-Moore +Date: Thu May 11 20:40:18 2017 +0200 + + remove superfluous size_t value >= 0 check + +M src/debugallocation.cc + +commit 86ce69d77ff5f881c5701901bf7d1ef884f9e33a +Author: Eugene +Date: Sat Feb 4 17:57:34 2017 +0300 + + Update binary_trees.cc + +M benchmark/binary_trees.cc + +commit cd8586ed6c8bed550ad727ce8af83a1a6bd1ca8e +Author: Ola Olsson +Date: Tue Mar 21 14:07:16 2017 +0100 + + Fix path names in README + +M README + +commit 98753aa73772bb0fae8cee668e513d5754ab7737 +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 16:04:14 2017 -0800 + + test that sized deallocation really works before enabling it + + Weirdly, some OSX compiler does allow -fsized-deallocation, yet barks + on any attempt to actually use it at compile time (!). So lets detect + this as well in configure and opt out as necessary. + + Should fix issue #870. + +M configure.ac + +commit 5618ef78505a854bd0d2c145fd9cf7967226a20e +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 15:31:41 2017 -0800 + + Don't assume memalign exists in memalign vs nallocx test + + OSX and windows have issues with memalign. So test against tc_memalign + instead. + + This should fix _memalign linker-time part of issue #870. + +M src/tests/tcmalloc_unittest.cc + +commit bf640cd740fe38f6f10faa8683e8361fee971aba +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 14:51:27 2017 -0800 + + rename sys allocator's sys_alloc symbol to tcmalloc_sys_alloc + + Since we're not building with hidden visibility, symbols of other DSOs + can interpose our symbols. And sys_alloc is just too generic name. + + And in fact erlang runtime has sys_alloc function. Which means we're + trying to write to it's first bytes as part of initializing system + allocator and crash. + + This should fix issue #843. + +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/windows/system-alloc.cc + +commit 069e3b16551186f8da0a41c185550fdfd11af35b +Author: Aliaksey Kandratsenka +Date: Mon Feb 20 14:25:18 2017 -0800 + + build malloc_bench_shared_full only when full tcmalloc is built + + I.e. because otherwise, when --enable-minimal is given, we're building + empty libtcmalloc.la and linking it to malloc_bench_shared_full. Which + has no effect at all and actually breaks builds on OSX. + + Should fix issue #869. + +M Makefile.am + +commit b8f9d0d44f94177d34b069180618b7d002e85b69 +Author: Aliaksey Kandratsenka +Date: Sun Dec 18 09:35:02 2016 -0800 + + ported nallocx support from Google-internal tcmalloc + + nallocx is extension introduced by jemalloc. It returns effective size + of allocaiton without allocating anything. + + We also support MALLOCX_LG_ALIGN flag. But all other jemalloc + flags (which at the moment do nothing for nallocx anyways) are + silently ignored, since there is no sensible way to return errors in + this API. + + This was originally contributed by Dmitry Vyukov with input from + Andrew Hunter. But due to significant divergence of Google-internal + and free-software forks of tcmalloc, significant massaging was done by + me. So all bugs are mine. + +M Makefile.am +A src/gperftools/nallocx.h +M src/tcmalloc.cc +M src/tests/tcmalloc_unittest.cc + +commit b0abefd93834d9d9c7ffaae2d23bd48ed8e96477 +Author: Andrew Morrow +Date: Sat Dec 17 13:57:41 2016 -0500 + + Fix a typo in the page fence flag declaration + +M src/debugallocation.cc + +commit 855b3800064db49af823b85a54be269923eb6f4d +Author: Kirill Müller +Date: Tue Nov 15 09:58:11 2016 +0100 + + replace docs by doc + +M Makefile.am +M README +D doc +M packages/deb/docs +M packages/deb/libgperftools0.manpages +M src/gperftools/heap-checker.h +M src/gperftools/heap-profiler.h +M src/gperftools/profiler.h +M src/profiledata.h +M src/tcmalloc.cc + +commit 664210ead806d700cdbe5eeaf75d7a066fdac541 +Author: Kirill Müller +Date: Tue Nov 15 09:42:12 2016 +0100 + + doc -> docs, with symlink + +A doc +R100 doc/cpuprofile-fileformat.html docs/cpuprofile-fileformat.html +R100 doc/cpuprofile.html docs/cpuprofile.html +R100 doc/designstyle.css docs/designstyle.css +R100 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+docs/tcmalloc-opspersec.vs.size.5.threads.png +R100 doc/tcmalloc-opspersec.vs.size.8.threads.png +docs/tcmalloc-opspersec.vs.size.8.threads.png +R100 doc/tcmalloc.html docs/tcmalloc.html +R100 doc/threadheap.dot docs/threadheap.dot +R100 doc/threadheap.gif docs/threadheap.gif + +commit 75dc9a6e1470fa82b828f9687edad48f53d740b1 +Author: zmertens +Date: Fri Nov 18 15:27:32 2016 -0700 + + Fix Post(s)cript tyos + +M doc/pprof.1 +M src/pprof + +commit dde32f8bbc95312379f9f5a651799815bb6327c5 +Author: Francis Ricci +Date: Tue Oct 11 11:14:06 2016 -0700 + + Fix unaligned memory accesses in debug allocator + +M src/base/basictypes.h +M src/debugallocation.cc + +commit 02eeed29df112728564a5dde6417fa4622b57a06 +Author: Ryan Macnak +Date: Tue Sep 27 14:03:05 2016 -0700 + + Fix redefinition of mmap on aarch64. + +M src/base/linux_syscall_support.h + +commit c07a15cff4b904ac45e4019f8e36eeffd3e8186c +Author: Aliaksey Kandratsenka +Date: Sat Sep 24 18:56:22 2016 -0700 + + [windows] patch _free_base as well + + Looks like _free_base is used as generic free/delete, which is not + checked for free/delete mismatch by their debug runtime. Issue #817 + occurs because something that is allocated by regular allocation + functions (new or malloc) is freed by _free_base. Patch it as + well fixes + the problem. + + Closes #817. + +M src/windows/patch_functions.cc + +commit acac6af26b0ef052b39f61a59507b23e9703bdfa +Author: Aliaksey Kandratsenka +Date: Sat Sep 24 16:19:27 2016 -0700 + + Fix finding default zone on macOS sierra + + This is taken from jemalloc patch at + https://github.com/jemalloc/jemalloc/pull/427/commits/19c9a3e828ed46f1576521c264640e60bd0cb01f + by Mike Hommey (aka glandium). + + The issue was reported together with advise to take that jemalloc + fix by + Koichi Shiraishi and David Ribeiro Alves at gperftools issue #827. + + Closes issue #827. + +M src/libc_override_osx.h + +commit 7822b5b0b9fa7e016e1f6b46ea86f26f4691a457 +Author: Tulio Magno Quites Machado Filho +Date: Mon Aug 8 13:50:10 2016 -0300 + + Stop using glibc malloc hooks + + glibc deprecated malloc hooks in 2011 and will be removing them soon. + These hooks aren't safe and aren't necessary when the malloc API is + fully exported. + +M configure.ac +M src/libc_override_glibc.h + +commit c92f0ed0891d69888cdc7e904c82048362b2dd8d +Author: Tulio Magno Quites Machado Filho +Date: Wed Jul 27 17:15:52 2016 -0300 + + Remove references to __malloc_initialize_hook + + __malloc_initialize_hook has been deprecated in glibc since 2011 + and is + being removed on glibc 2.24. + +M src/libc_override_glibc.h + +commit 9709eef361aa8c46d6b14c08bebead7b8185e731 +Merge: eb474c9 44f276e +Author: Aliaksey Kandratsenka (aka Aliaksei Kandratsenka) + +Date: Wed Aug 24 22:33:05 2016 -0700 + + Merge pull request #821 from jtmcdole/patch-1 + + Rename TCMALLOC_DEBUG to PERFTOOLS_VERBOSE + +commit 44f276e132eef8ba013a04b4af92ce26464e2b54 +Author: John McDole +Date: Wed Aug 24 17:47:28 2016 -0700 + + Rename TCMALLOC_DEBUG to PERFTOOLS_VERBOSE + +M README + +commit eb474c995eadef3edb47bc081f09693228832794 +Author: Aliaksey Kandratsenka +Date: Sun Jul 3 18:20:32 2016 -0700 + + Summary: support gcc atomic ops on clang too + + Clang actually does support __atomic_XXX atomic ops builtins but does + not advertise itselt as gcc 4.7 or later. So we now detect clang + separetely. + + We're enabling gcc atomic ops on clang >= 3.4 since this is the oldest + version that I can test. + + This should fix issue #797. + +M src/base/atomicops.h + +commit 7f86eab1f3e0636a79a96fd44e3bb51db0457a86 +Author: Kenton Varda +Date: Thu Jun 30 18:32:39 2016 -0700 + + Recognize .node files as shared libraries + + node.js extensions are regular shared libraries named with the `.node` + extension. With this small change I was able to get a usable heap + profile out of node to debug an extension I'm working on. + +M src/pprof + +commit bf8eacce69df877d1cecdab8c7a6cc3f218ebcc2 +Author: Bryan Chan +Date: Wed Jun 15 00:10:45 2016 -0400 + + Add support for 31-bit s390; merge linux_syscall_support.h changes + from upstream. + +M configure.ac +M m4/pc_from_ucontext.m4 +M src/base/basictypes.h +M src/base/linux_syscall_support.h +M src/base/linuxthreads.h +M src/getpc.h +M src/malloc_hook_mmap_linux.h + +commit c54218069b96e5a64e81186cd14107bf6660b61d +Author: savefromgoogle +Date: Sat May 14 17:50:34 2016 +0200 + + Update README + + typo corrected and direct link to Google Group mailinglist added + +M README + +commit 06f4ce65c226e2bed432119bd830a478012ea336 +Author: iivlev +Date: Fri Apr 15 17:46:25 2016 +0300 + + Small performance tweak: avoid calling time() if we don't need it + +M src/heap-profiler.cc + +commit db8d4836091b93100b176e8cab4e842974234e4e +Author: Aliaksey Kandratsenka +Date: Sat Jun 25 16:24:40 2016 -0700 + + Autogenerate ChangeLog from git on make dist + + This fixes build breakage introduced in preceding commit for issue + #796. + +A ChangeLog +M Makefile.am +M configure.ac +A m4/ax_generate_changelog.m4 + +commit 4a1359831938b5a71b2faf38c02003053af253d9 +Author: Aliaksey Kandratsenka +Date: Sat Jun 25 16:12:48 2016 -0700 + + renamed ChangeLog to ChangeLog.old + + I.e. to avoid confusion. This should fix issue #796. + +R100 ChangeLog ChangeLog.old + +commit 7852eeb75b9375cf52a7da01be044da6e915dd08 +Author: Aliaksey Kandratsenka +Date: Sat Apr 9 13:09:18 2016 -0700 + + Use initial-exec tls for libunwind's recursion flag + + If we don't do it, then reading variable calls to __tls_get_addr, + which + uses malloc on first call. initial-exec makes dynamic linker + reserve tls + offset for recusion flag early and thus avoid unsafe calls to malloc. + + This fixes issue #786. + +M src/base/basictypes.h +M src/stacktrace_libunwind-inl.h +M src/thread_cache.h + +commit a07f9fe75af25ce388af3d4ff4514b42513d766f +Author: Mike Gaffney +Date: Thu Mar 31 11:27:21 2016 -0700 + + gerftools -> gperftools in readme + +M README + +commit 9fd6d2687914a1f58a8ce457d6a1bd3d55ea0747 +Author: Aliaksey Kandratsenka +Date: Sun Mar 20 12:29:40 2016 -0700 + + added define to enable MADV_FREE usage on Linux + + Building with -DTCMALLOC_USE_MADV_FREE will enable usage of + MADV_FREE on + Linux if glibc copy of kernel headers has MADV_FREE defined. + + I.e. so that people can test this more easily. + + Affects ticket #780. + +M src/system-alloc.cc + +commit 6f7a14f45e2e2e16fbbd250543f5758078e2f5f0 +Author: Mathias Stearn +Date: Wed Mar 16 18:22:32 2016 -0400 + + Don't use MADV_FREE on Linux + + Addresses #780. + +M src/system-alloc.cc + +commit 55cf6e6281f2f19ed04a6b2a90e2dcaec08e16d0 +Author: Aman Gupta +Date: Mon Mar 14 12:20:40 2016 -0700 + + Fix symbol resolution on OSX + + The library mapping ranges on OSX and Linux are sorted in opposite + orders + + 7f71c3323000-7f71c3339000 r-xp 00000000 09:02 29099128 + /lib/x86_64-linux-gnu/libz.so.1.2.3.4 + 7f71c3339000-7f71c3538000 ---p 00016000 09:02 29099128 + /lib/x86_64-linux-gnu/libz.so.1.2.3.4 + 7f71c3538000-7f71c3539000 r--p 00015000 09:02 29099128 + /lib/x86_64-linux-gnu/libz.so.1.2.3.4 + 7f71c3539000-7f71c353a000 rw-p 00016000 09:02 29099128 + /lib/x86_64-linux-gnu/libz.so.1.2.3.4 + + vs + + 108f8d000-108f95000 r-xp 00025000 00:00 0 + /usr/local/opt/libmemcached/lib/libmemcached.11.dylib + 108f8c000-108f8d000 r-xp 00024000 00:00 0 + /usr/local/opt/libmemcached/lib/libmemcached.11.dylib + 108f68000-108f8c000 r-xp 00000000 00:00 0 + /usr/local/opt/libmemcached/lib/libmemcached.11.dylib + +M src/pprof + +commit 8e858436223db7729d41304ad29a29946d47382b +Author: Aliaksey Kandratsenka +Date: Sun Mar 13 15:11:50 2016 -0700 + + added simple .travis.yml config + +A .travis.yml + +commit 05e40d29c034c0d68322e589b8d6e234f562be2e +Author: Brian Silverman +Date: Tue Mar 8 15:58:02 2016 -0500 + + Recognize modern Linux ARM + + Commit e580d7888154fa7f95b3cef9e18f1ce69182212b fixed the macros + in some + of the code but not other places. + + `make check` still fails in the same places on a Debian Jessie armhf + system. + +M src/base/elfcore.h +M src/base/linuxthreads.h + +commit 632de2975e63f89613af9ab99bc1603a4a6332aa +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 11:48:20 2016 -0800 + + bumped version up to 2.5 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 6682016092c735feb29021acbb8c2067fdf1a209 +Author: Aliaksey Kandratsenka +Date: Sat Mar 12 10:54:05 2016 -0800 + + Unbreak profiling with CPUPROFILE_FREQUENCY=1 + + This closes ticket #777. + + No test sadly, since it's not trivial to unittest this case. But + fix with single-shot manual testing is better than nothing. + +M src/profile-handler.cc + +commit 6ff86ff6a783a277956e45db68c6a2b729f27000 +Author: Aliaksey Kandratsenka +Date: Sat Mar 5 16:17:28 2016 -0800 + + bumped version to 2.4.91 for 2.5rc2 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 782165fa7f2c49d6a67c2415626a1f215cc21ac2 +Author: Aliaksey Kandratsenka +Date: Sat Mar 5 15:47:25 2016 -0800 + + build sized delete aliases even when sized-delete is disabled + + In this case we alias to regular delete. This is helpful because if we + don't override sized delete, then apps will call version in libstdc++ + which delegates calls to regular delete, which is slower than calling + regular delete directly. + +M configure.ac +M src/libc_override_gcc_and_weak.h + +commit 06811b3ae4c5365880898148d188ae91d20f52f2 +Author: Aliaksey Kandratsenka +Date: Sat Mar 5 15:08:50 2016 -0800 + + disable dynamic sized delete support by default + + IFUNC relocations don't support our advanced use case (calling + application function or looking up environment variable). + + Particularly, it doesn't work on PPC and arm when tcmalloc is linked + with -Wl,-z,now. See RedHat's bugzilla ticket + https://bugzilla.redhat.com/show_bug.cgi?id=1312462 for more details. + +M configure.ac + +commit d4d99eb608f3d778fa301137a85cc4903a1dd33e +Author: Aliaksey Kandratsenka +Date: Sat Mar 5 14:53:42 2016 -0800 + + unbreak compilation with visual studio + + Specifically, this commit adds missing fake_stacktrace_scope.cc + to msvc + build and removes undef-ing of PERFTOOLS_DLL_DECL by tcmalloc.h. + +M src/gperftools/tcmalloc.h.in +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj + +commit 126d4582c18d053452d22ce12351c5429513aabe +Author: Brian Silverman +Date: Tue Mar 1 17:57:33 2016 -0500 + + Call function pointers with the right type + + I think it's undefined behavior, but it's definitely weird. ubsan + complains too. + +M src/tests/tcmalloc_unittest.cc + +commit e0fa28ef7d50158b271da90f53ab3aee5ba441d8 +Author: Brian Silverman +Date: Tue Mar 1 17:56:32 2016 -0500 + + Don't shift a type by more than its width + + It's undefined behavior, so ubsan complains. + +M src/tests/sampler_test.cc + +commit a1c764d2632cc0090f31d8d56effb94a8d049b54 +Author: Brian Silverman +Date: Tue Mar 1 17:55:59 2016 -0500 + + Initialize counters in test + +M src/tests/profile-handler_unittest.cc + +commit 22123a37c236e26535d3f3fff7f31a5b6515d7d6 +Author: Brian Silverman +Date: Tue Mar 1 17:55:53 2016 -0500 + + Don't overflow a signed integer + + It's undefined behavior and ubsan catches it. + +M src/base/low_level_alloc.cc + +commit 66e1e94f38467b5c7bbfb05e3c7267f3039a2c69 +Author: Aliaksey Kandratsenka +Date: Mon Feb 29 20:09:39 2016 -0800 + + added minimal "header section" to README + +M README + +commit 2804b7cfee8d49d5ab98340cbf3050c0a5f57b98 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 20:27:48 2016 -0800 + + bumped version to 2.5rc + +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit f47fefbfc1083e7efbada3e7e7d2859d31e151e7 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 22:38:23 2016 -0800 + + updated NEWS for 2.5rc + +M NEWS + +commit cef60361741e858041f4bb4d46ce00c6db89b711 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 23:03:41 2016 -0800 + + alias same malloc/free variants to their canonical versions + + This is similar to what gcc 5 does anyways, except gcc 5 is placing + jumps which adds a bit of overhead. + + Instead of letting gcc do it, we alias using ELF symbol aliasing. All + free variants (tc_delete{,array}_{,nothrow}) are aliased to + tc_free. There are 3 malloc variants that differ by oom + handling. tc_newarray is aliased to tc_new. And tc_newarray_nothrow is + aliased to tc_new_nothrow. + + This aliasing only happens in non-debug malloc, since debug malloc + does + distinguish between different variants since it needs checking for + mismatch. + +M src/tcmalloc.cc + +commit ea8d242061460309d174d9053a224cf94e65e6fe +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 20:16:37 2016 -0800 + + Re-enable MultipleIdleNonIdlePhases test + + Which was accidentally removed as part of MarkThreadTemporarilyIdle + support. + +M src/tests/markidle_unittest.cc + +commit c9962f698b0edb37315445b33a06820f9bcf5df9 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 20:07:37 2016 -0800 + + added maybe_emergency_malloc.h to Makefile.am + + Because without this reference it isn't packaged by make dist. + +M Makefile.am + +commit 7dd4af65365d74a5d8d30d5811c26117a9192238 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 19:26:37 2016 -0800 + + don't round up sizes for large allocation when sampling + + This closes #723. + + Since rounding up prior to sampling is introducing possibility of + arithmetic overflow, we're just not doing it. + + It introduces some error (up to 4k), but since we're dealing with at + least 256k allocations, we're fine. + +M src/tcmalloc.cc + +commit 4f3410e759ec42cb307429222d690a81e3cd37b0 +Author: Aliaksey Kandratsenka +Date: Sun Feb 21 13:52:47 2016 -0800 + + enable emergency malloc by default on arm when using libunwind + + Because by default libunwind on arm does fopen which mallocs + which will + deadlock unless we enable emergency malloc. + +M configure.ac + +commit 7f12051dbe1f402771a747c1192a66e7571d94f9 +Author: Aliaksey Kandratsenka +Date: Sun Jan 31 23:17:50 2016 -0800 + + implemented emergency malloc + + Emergency malloc is enabled for cases when backtrace capturing + needs to + call malloc. In this case, we enable emergency malloc just prior to + calling such code and disable it after it is done. + +M Makefile.am +M configure.ac +M src/debugallocation.cc +A src/emergency_malloc.cc +A src/emergency_malloc.h +A src/emergency_malloc_for_stacktrace.cc +A src/fake_stacktrace_scope.cc +M src/malloc_hook.cc +A src/maybe_emergency_malloc.h +M src/stacktrace.cc +M src/tcmalloc.cc +M src/thread_cache.h + +commit 3ee2360250c639f02b354820bc50efc6e104b754 +Author: Aliaksey Kandratsenka +Date: Sat Feb 20 21:49:58 2016 -0800 + + replaced invalid uses of __THROW + + We're now using it only when overriding glibc functions (such + as malloc + or mmap). In other cases (most importantly in public tcmalloc.h + header) + we're doing our own throw() to avoid possible breakage on future glibc + changes. + +M src/debugallocation.cc +M src/gperftools/tcmalloc.h.in +M src/libc_override_glibc.h +M src/libc_override_redefine.h +M src/tcmalloc.cc +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit 013b82abcfeaa158da2490ff86d6bff5a5434d7f +Author: Aliaksey Kandratsenka +Date: Sat Feb 20 21:19:37 2016 -0800 + + unbreak inclusion in gperftools/tcmalloc.h + + We have shipped header which checked HAVE_XXX defines which we only + defined in project-local config.h. So it could never work correctly. + + We're now doing #include just like tc_mallinfo on constant + which we detect at configure time and write into header that we + install. + +M src/gperftools/tcmalloc.h.in + +commit 19903e6f156d0ff8063880ddc5051b5dc261c1ff +Author: Aliaksey Kandratsenka +Date: Sat Feb 20 21:18:18 2016 -0800 + + drop detection of sys/malloc.h and malloc/malloc.h + + Which we don't really need. + +M configure.ac + +commit cdff090ebd7a3cef8de60109bef52251758181d7 +Author: Aliaksey Kandratsenka +Date: Sat Feb 20 20:43:21 2016 -0800 + + Fix several harmless clang warnings + +M src/common.cc +M src/internal_logging.cc +M src/malloc_hook.cc +M src/tests/current_allocated_bytes_test.cc + +commit 9095ed08402620b04591c2d27ca222594f0da6db +Author: Aliaksey Kandratsenka +Date: Sat Feb 20 20:33:27 2016 -0800 + + implemented stacktrace capturing via libgcc's C++ ABI function + + Particularly _Unwind_Backtrace which seems to be gcc extension. + + This is what glibc's backtrace is commonly is using. + + Using _Unwind_Backtrace directly is better than glibc's backtrace, + since + it doesn't call into dlopen. While glibc does dlopen when it is + built as + shared library apparently to avoid link-time dependency on libgcc_s.so + +M Makefile.am +M configure.ac +M src/stacktrace.cc +A src/stacktrace_libgcc-inl.h + +commit 728cbe102108be8296f2485e384392a4408ce9db +Author: Aliaksey Kandratsenka +Date: Sat Feb 20 13:06:08 2016 -0800 + + force profiler_unittest to do 'real' work + + 'XOR loop' in profiler unittest wasn't 100% effective because + it allowed + compiler to avoid loading and storing to memory. + + After marking result variable as volatile, we're now forcing + compiler to + read and write memory, slowing this loops down sufficiently. And + profiler_unittest is now passing more consistently. + + Closes #628 + +M src/tests/profiler_unittest.cc + +commit fff6b4fb8814b5f25d4f97889d5003537f7dcc92 +Author: Aliaksey Kandratsenka +Date: Sun Jan 31 23:14:43 2016 -0800 + + Extend low-level allocator to support custom pages allocator + +M src/base/low_level_alloc.cc +M src/base/low_level_alloc.h + +commit 32d992679589ea83e044d3f8263583ae960b0b16 +Author: Aliaksey Kandratsenka +Date: Sun Jan 31 22:42:20 2016 -0800 + + added malloc_bench_shared_full + +M .gitignore +M Makefile.am + +commit 00d8fa1ef8d6650f08e00f59baa22cd31b908432 +Author: Aliaksey Kandratsenka +Date: Sat Feb 6 19:13:07 2016 -0800 + + always use real throw() on operators new/delete + + Since non-glibc-s have no __THROW and lack of throw() on operators + gives + us warning. + +M src/libc_override_gcc_and_weak.h + +commit 08e034ad5940f24f99a24630c7b71a0de728d05b +Author: Aliaksey Kandratsenka +Date: Sat Feb 6 16:19:54 2016 -0800 + + Detect working ifunc before enabling dynamic sized delete support + + Particularly, on arm-linux and x86-64-debian-kfreebsd compilation + fails + due to lack of support for ifunc. So it is necessary to test at + configure time whether ifunc is supported. + +M configure.ac + +commit a788f354a0cd6de3d714a58ad3e6ae5baf806c3b +Author: Aliaksey Kandratsenka +Date: Sat Feb 6 16:01:25 2016 -0800 + + include unistd.h for getpid in thread_lister.c + + This fixes warning produced on arm-linux. + +M src/base/thread_lister.c + +commit 644a6bdbdb50b26a25e4428c43556467a6e8b5cc +Author: Bryan Chan +Date: Fri Jan 22 12:26:47 2016 -0500 + + Add support for Linux s390x + + This resolves gperftools/gperftools#761. + +M configure.ac +M m4/pc_from_ucontext.m4 +M src/base/basictypes.h +M src/base/linux_syscall_support.h +M src/base/linuxthreads.h +M src/malloc_hook_mmap_linux.h + +commit bab7753aad44b3395a063966f32c23f632fee174 +Author: Bryan Chan +Date: Fri Jan 29 02:38:42 2016 -0500 + + Fix typo in heap-checker-death_unittest.sh + +M src/tests/heap-checker-death_unittest.sh + +commit 17182e1d3c324e8fe9cc02ce2822caa746d7d17a +Author: Simon Que +Date: Fri Jan 29 18:17:16 2016 -0800 + + Fix include of malloc_hook_c.h in malloc_hook.h + + malloc_hook.h includes malloc_hook_c.h as + . + This requires the compiler to have designated src/gperftools as a + standard include directory (-I), which may not always be the case. + + Instead, include it as "malloc_hook_c.h", which will search in + the same + directory first. This will always work, regardless of whether it was + designated a standard include directory. + +M src/gperftools/malloc_hook.h + +commit c69721b2b2ceae426c36de191dd0a6fa443c5c7a +Author: Andrew Morrow +Date: Sun Nov 22 15:19:12 2015 -0500 + + Add support for obtaining cache size of the current thread and + softer idling + +M src/gperftools/malloc_extension.h +M src/gperftools/malloc_extension_c.h +M src/malloc_extension.cc +M src/tcmalloc.cc +M src/tests/markidle_unittest.cc +M src/thread_cache.cc +M src/thread_cache.h + +commit 5ce42e535d6b3bf6c5e41ceb9cf876a70a7e3318 +Author: Brian Silverman +Date: Tue Jan 26 16:53:48 2016 -0500 + + Don't always arm the profiling timer. + + It causes a noticeable performance hit and can sometimes confuse GDB. + + Tested with CPUPROFILE_PER_THREAD_TIMERS=1. + + Based on an old version by mnissler@google.com. + +M src/profile-handler.cc +M src/profile-handler.h +M src/tests/profile-handler_unittest.cc + +commit 7f801ea091e03dae7b13160f76fecce15727c9c0 +Author: Duncan Sands +Date: Fri Jan 15 18:12:51 2016 +0100 + + Make sure the alias is not removed by link-time optimization when + it can prove + that it isn't used by the program, as it might still be needed to + override the + corresponding symbol in shared libraries (or inline assembler for + that matter). + For example, suppose the program uses malloc and free but not calloc + and is + statically linked against tcmalloc (built with -flto) and LTO + is done. Then + before this patch the calloc alias would be deleted by LTO due to + not being + used, but the malloc/free aliases would be kept because they are + used by the + program. Suppose the program is dynamically linked with a shared + library that + allocates memory using calloc and later frees it by calling free. + Then calloc + will use the libc memory allocator, because the calloc alias was + deleted, but + free will call into tcmalloc, resulting in a crash. + +M src/libc_override_gcc_and_weak.h + +commit 6b3e6ef5e0ab65030d116dd55dac8d64f9c72d33 +Author: Aliaksey Kandratsenka +Date: Sun Jan 24 19:45:16 2016 -0800 + + don't retain compatibility with old docdir behavior + + Since it is not really needed. And since we don't care about too + ancient + autoconfs. + +M configure.ac + +commit ccffcbd9e988a39654fe6ec5edd6d817f266ded9 +Author: Chris Mayo +Date: Sun Dec 27 18:55:05 2015 +0000 + + support use of configure --docdir argument + + Value of docdir was being overridden in Makefile. + + Retain compatibility with old Autoconf versions that do not provide + docdir. + +M Makefile.am +M configure.ac + +commit 050f2d28be8a63836bd74558b82be7983770a654 +Author: Aliaksey Kandratsenka +Date: Sat Dec 12 18:27:40 2015 -0800 + + use alias attribute only for elf platforms + + It was reported that clang on OSX doesn't support alias + attribute. Most + likely because of executable format limitations. + + New code limits use of alias to gcc-compatible compilers on elf + platforms (various gnu and *bsd systems). Elf format is known + to support + aliases. + +M src/tcmalloc.cc + +commit 07b0b21ddd168d977c04b1395677de71bb3e402e +Author: cyshi +Date: Wed Dec 2 14:47:15 2015 +0800 + + fix compilation error in spinlock + +M src/base/spinlock.cc + +commit e14450366abc51c7a25256615179daf0bae1de34 +Author: gshirishfree +Date: Mon Nov 23 11:34:13 2015 -0800 + + Added better description for GetStats API + +M src/gperftools/malloc_extension.h + +commit 64892ae730b704a7f3f23bd8eaeaf206901df201 +Author: Aliaksey Kandratsenka +Date: Sat Nov 21 19:17:36 2015 -0800 + + lower default transfer batch size down to 512 + + Some workloads get much slower with too large batch size. + + This closes bug #678. + + binary_trees benchmark benefits from larger batch size. And I + found that + 512 is not much slower than huge value that we had. + +M src/common.cc + +commit 6fdfc5a7f40ebcff3fdaada1a2994ff54be2f9c7 +Author: Aliaksey Kandratsenka +Date: Sat Oct 24 23:16:45 2015 -0700 + + implemented enabling sized-delete support at runtime + + Under gcc 4.5 or greater we're using ifunc function attribute + to resolve + sized delete operator to either plain delete implementation + (default) or + to sized delete (if enabled via environment variable + TCMALLOC_ENABLE_SIZED_DELETE). + +M configure.ac +M src/libc_override_gcc_and_weak.h +M src/tests/tcmalloc_unittest.sh + +commit c2a79d063c949584170b3e7dd2939a4548c16079 +Author: Aliaksey Kandratsenka +Date: Fri Oct 23 21:44:04 2015 -0700 + + use x86 pause in spin loop + + This saves power and improves performance, particulary on SMT. + +M src/base/spinlock.cc + +commit 0fb6dd8aa3c2fe3245c31c138ec4dfb05efd7f6d +Author: Aliaksey Kandratsenka +Date: Fri Oct 23 22:09:25 2015 -0700 + + added binary_trees benchmark + +M .gitignore +M Makefile.am +A benchmark/binary_trees.cc + +commit a8852489e54e915d22abbdad1688d1f25ccb7925 +Author: Aliaksey Kandratsenka +Date: Sun Oct 18 00:40:15 2015 -0700 + + drop unsupported allocation sampling code in tcmalloc_minimal + +M src/tcmalloc.cc +M src/thread_cache.h + +commit a9db0ae516c225543976280047b22b1e0ca08b93 +Author: Aliaksey Kandratsenka +Date: Sun Oct 4 21:12:28 2015 -0700 + + implemented (disabled by default) sized delete support + + gcc 5 and clang++-3.7 support sized deallocation from C++14. We are + taking advantage of that by defining sized versions of operator + delete. + + This is off by default so that if some existing programs that + define own + global operator delete without sized variant are not broken by + tcmalloc's sized delete operator. + + There is also risk of breaking exiting code that deletes objects using + wrong class (i.e. base class) without having virtual destructors. + +M configure.ac +M src/gperftools/tcmalloc.h.in +M src/libc_override_gcc_and_weak.h +M src/libc_override_redefine.h +M src/tcmalloc.cc +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit 88686972b9caf8fd132c4e30d89da78c3d324c27 +Author: Aliaksey Kandratsenka +Date: Sun Oct 4 11:15:37 2015 -0700 + + pass -fsized-deallocation to gcc 5 + + Otherwise it gives warning for declaration of sized delete operator. + +M Makefile.am +M configure.ac + +commit 0a18fab3af2f1b59b851836d319a1eff0db5d44e +Author: Aliaksey Kandratsenka +Date: Sun Oct 4 21:07:54 2015 -0700 + + implemented sized free support via tc_free_sized + +M src/debugallocation.cc +M src/gperftools/tcmalloc.h.in +M src/tcmalloc.cc +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in +M src/windows/patch_functions.cc + +commit 464688ab6ddb82db22ea9b934ddea192478e4535 +Author: Aliaksey Kandratsenka +Date: Sun Oct 4 21:27:56 2015 -0700 + + speedup free code path by dropping "fast path allowed check" + +M src/tcmalloc.cc + +commit 10f7e207166bd6652ed8803b9885917bfbbd90d0 +Author: Aliaksey Kandratsenka +Date: Sat Oct 3 18:47:14 2015 -0700 + + added SizeMap::MaybeSizeClass + + Because it allows us to first check for smaller sizes, which is most + likely. + +M src/common.h + +commit 436e1dea43dc097525e43a43e6d79810ba6921b5 +Author: Aliaksey Kandratsenka +Date: Sat Oct 3 15:40:21 2015 -0700 + + slightly faster GetCacheIfPresent + +M src/thread_cache.h + +commit 04df911915ecfcbc5e6b13fdab1b86f825ed1938 +Author: Aliaksey Kandratsenka +Date: Sat Oct 3 15:38:33 2015 -0700 + + tell compiler that non-empty hooks are unlikely + +M src/malloc_hook-inl.h + +commit 8cc75acd1f4024ca978858b1cf85b45204ed32b2 +Author: Aliaksey Kandratsenka +Date: Sun Oct 4 11:04:12 2015 -0700 + + correctly test for -Wno-unused-result support + + gcc is only giving warning for unknown -Wno-XXX flags so test never + fails on gcc even if -Wno-XXX is not supported. By using + -Wunused-result we're able to test if gcc actually supports it. + + This fixes issue #703. + +M configure.ac + +commit 7753d8239b1e427d83729b6d5c0401e1d80308fd +Author: Aliaksey Kandratsenka +Date: Sun Oct 4 18:26:59 2015 -0700 + + fixed clang warning about shifting negative values + +M src/base/basictypes.h + +commit ae09ebb3833f3f207b7623245e360ddf122b823e +Author: Jens Rosenboom +Date: Thu Nov 19 17:45:44 2015 +0100 + + Fix tmpdir usage in heap-profiler_unittest.sh + + Using a single fixed directory would break when tests were being + run in + parallel with "make -jN". + + Also, the cleanup at the end of the test didn't work because it + referred + to the wrong variable. + +M src/tests/heap-profiler_unittest.sh + +commit df34e71b575daa6e4fa7588ae0deb9d529566f08 +Author: Aliaksey Kandratsenka +Date: Sat Nov 21 16:03:09 2015 -0800 + + use $0 when referring to pprof + + This fixed debian bug #805536. Debian ships pprof under google-pprof + name so it is handy when google-pprof --help refers to itself + correctly. + +M src/pprof + +commit 7773ea64ee254700ef0ffc5673539f0e111a4f86 +Author: Adhemerval Zanella +Date: Fri Nov 6 16:29:12 2015 -0200 + + Alignment fix to static variables for system allocators + + This patch the placement new for some system allocator to force the + static buffer to pointer value. + +M src/memfs_malloc.cc +M src/system-alloc.cc + +commit c46eb1f3d2f7a2bdc54a52ff7cf5e7392f5aa668 +Author: Boris Sazonov +Date: Thu Oct 15 17:39:08 2015 +0300 + + Fixed printf misuse in pprof - printed string was passed as + format. Better use print instead + +M src/pprof + +commit 9bbed8b1a8f1229cf0f1b4185683f309267ee1b9 +Author: Boris Sazonov +Date: Wed Sep 23 19:46:13 2015 +0300 + + Fixed assembler argument passing inside _syscall6 on MIPS - it was + causing 'Expression too complex' compilation errors in spinlock + +M src/base/linux_syscall_support.h + +commit 962aa53c55968f62f548f6f6f4849a384b505ca0 +Author: Aliaksey Kandratsenka +Date: Sat Oct 10 20:31:50 2015 -0700 + + added more fastpath microbenchmarks + + This also makes them output nicer results. I.e. every benchmark is + run 3 + times and iteration duration is printed for every run. + + While this is still very synthetic and unrepresentave of malloc + performance + as a whole, it is exercising more situations in tcmalloc fastpath. So + it a + step forward. + +M Makefile.am +M benchmark/malloc_bench.cc +A benchmark/run_benchmark.c +A benchmark/run_benchmark.h + +commit 347a830689e4dba2adc1368d00fe4723ba726b4a +Author: Aliaksey Kandratsenka +Date: Sat Oct 10 15:58:11 2015 -0700 + + Ensure that PPROF_PATH is set for debugallocation_test + + Which fixes issue #728. + +M src/tests/debugallocation_test.sh + +commit a9059b7c30308a4f4ab25f00e55b67c649614ed3 +Author: Aliaksey Kandratsenka +Date: Sat Oct 10 15:35:54 2015 -0700 + + prevent clang from inlining Mallocer in heap checker unittest + + Looks like existing "trick" to avoid inlining doesn't really prevent + sufficiently smart compiler from inlining Mallocer function. Which + breaks tests, since test relies Mallocer having it's own separate + stack + frame. + + Making mallocer_addr variable volatile is seemingly enough to + stop that. + +M src/tests/heap-checker_unittest.cc + +commit 6627f9217d8897b297c6da038cfbcff6a3086cfa +Author: Aliaksey Kandratsenka +Date: Sat Sep 26 19:52:37 2015 -0700 + + drop cycleclock + +M Makefile.am +D src/base/cycleclock.h +M src/base/sysinfo.cc +M vsprojects/addressmap_unittest/addressmap_unittest.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/packed-cache_test/packed-cache_test.vcproj + +commit f985abc29607b8a5662ddac7bd1ed99c71ceeb11 +Author: Aliaksey Kandratsenka +Date: Sat Sep 26 19:50:03 2015 -0700 + + amputate unportable and unused stuff from sysinfo + + We still check number of cpus in the system (in spinlock code), + but old + code was built under assumption of "no calls malloc" which is + not needed + in tcmalloc. Which caused it to be far more complicated than + necessary (parsing procfs files, ifdefs for different OSes and + arch-es). + + Also we don't need clock cycle frequency measurement. + + So I've removed all complexity of ald code and NumCPUs function and + replaced it with GetSystemCPUsCount which is straightforward and + portable call to sysconf. + + Renaming of cpus count function was made so that any further code that + we might port from Google that depends on old semantics of NumCPUs + will + be detected at compile time. And has to be inspected for whether it + really needs that semantics. + +M src/base/spinlock.cc +M src/base/sysinfo.cc +M src/base/sysinfo.h + +commit 16408eb4d71ecbb1dd3b3c7ff22c94bd254d7b58 +Author: Aliaksey Kandratsenka +Date: Tue Sep 29 11:59:25 2015 -0700 + + amputated wait_cycles accounting in spinlocks + + This is not needed and pulls in CycleClock dependency that lowers + code portability. + +M src/base/spinlock.cc +M src/base/spinlock.h + +commit fedceef40cd217ef406bc2522e9a8f879d60b0c0 +Author: Aliaksey Kandratsenka +Date: Tue Sep 29 11:55:35 2015 -0700 + + drop cycleclock reference in ThreadCache + +M src/thread_cache.cc + +commit d7fdc3fc9ddc0937eb7961b1d8c864cc8182f0d9 +Author: Aliaksey Kandratsenka +Date: Tue Sep 29 11:43:09 2015 -0700 + + dropped unused and unsupported synchronization profiling facility + + Spinlock usage of cycle counter is due do tracking of time it's spent + waiting for lock. But this tracking is only useful we actually have + synchronization profiling working, which dont have. Thus I'm dropping + calls to this facility with eye towards further removal of cycle clock + usage. + +M Makefile.am +M src/base/spinlock.cc +D src/base/synchronization_profiling.h + +commit 3a054d37c1f5323462bd77f55be02c5b0d764611 +Author: Aliaksey Kandratsenka +Date: Mon Sep 28 15:40:15 2015 -0700 + + dropped unused SpinLockWait function + +M src/base/spinlock.cc +M src/base/spinlock_internal.cc +M src/base/spinlock_internal.h + +commit 5b62d38329f04ee30fb475a36b552c1ebc4e1e79 +Author: Aliaksey Kandratsenka +Date: Mon Sep 28 10:27:49 2015 -0700 + + avoid checking for dup. entries on empty backtrace + + This might fix issue #721. But it is right thing to do + regardless. Since + if depth is 0 we'll be reading random "garbage" on the stack. + +M src/profiler.cc + +commit 7b9ded722e4cef9a44b8d8bfa80d3e1e108cf590 +Author: Aliaksey Kandratsenka +Date: Sat Sep 12 16:26:54 2015 -0700 + + fixed compiler warning in memory_region_map.cc + +M src/memory_region_map.cc + +commit 4194e485cbb5d8c59f65aba49da63c08ecc573da +Author: Aliaksey Kandratsenka +Date: Sat Sep 12 16:20:53 2015 -0700 + + Don't link libtcmalloc_minimal.so to libpthread.so + + So that LD_PRELOAD-ing doesn't force loading libpthread.so which may + slow down some single-threaded apps. + + tcmalloc already has maybe_threads facility that can detect if + libpthread.so is loaded (via weak symbols) and provide 'simulations' + of + some pthread functions that tcmalloc needs. + +M Makefile.am +M src/maybe_threads.cc +M src/maybe_threads.h +M src/static_vars.cc + +commit 121038308d8c5b34707614c44de265816a322563 +Author: Fredrik Mellbin +Date: Sun Sep 27 01:18:31 2015 +0200 + + Check if _MSC_VER is defined to avoid warnings + +M src/windows/port.h + +commit 73673229955cf35c5b3046ee3100d94e82d33bc2 +Author: Fredrik Mellbin +Date: Sun Sep 27 01:11:14 2015 +0200 + + Make default config.h work with VS2015 + +M src/windows/config.h + +commit ae0a444db06b2327441e6160eafa33d8b7b95629 +Author: Dair Grant +Date: Thu Oct 1 13:46:22 2015 +0100 + + Ensure ThreadCache objects are CACHELINE_ALIGNED. + +M src/base/basictypes.h +M src/common.cc +M src/system-alloc.cc + +commit ea0b1d315497771d9d077c754fb9d6a92d1c01dc +Author: Aliaksey Kandratsenka +Date: Sat Sep 26 11:13:13 2015 -0700 + + unbreak TestErrno again + + Somehow in previous commit I managed to break assignment of memalign + result to variable being tested. Luckily gcc gave me warning. + +M src/tests/tcmalloc_unittest.cc + +commit e53aef24add50bdee5ab2943d96e5c5b2b3bf596 +Author: Aliaksey Kandratsenka +Date: Sat Sep 26 09:58:45 2015 -0700 + + don't try to test memalign on windows + + This unbreaks tcmalloc_unittest.cc on windows. + +M src/tests/tcmalloc_unittest.cc + +commit 7707582448d5bdf311d88726c5f77fcbb0bedd09 +Merge: 5078abd 9eb63bd +Author: Aliaksey Kandratsenka (aka Aliaksei Kandratsenka) + +Date: Sat Sep 26 09:43:50 2015 -0700 + + Merge pull request #717 from myrsloik/master + + Use correct mangled new and delete symbols on windows x64 + +commit 9eb63bddfb7a8a7b086bb3daceeeaa2e3b1d8f67 +Author: Fredrik Mellbin +Date: Thu Sep 24 19:57:26 2015 +0200 + + Use correct mangled new and delete symbols on windows x64 + +M src/windows/patch_functions.cc + +commit 5078abdb331e63d7a216994f186eb736861f8df7 +Author: fdeweerdt +Date: Tue Aug 18 09:27:39 2015 -0700 + + Don't discard curl options if timeout is not defined. + + Editing the options passed to curl via 'my @URL_FETCHER = ("curl", + "-s");' (in particular to add a -k to ignore self signed certs) fails + for some invocations of curl. In FetchDynamicProfile, 'my @fetcher = + AddFetchTimeout($fetch_timeout, @URL_FETCHER);' ends up being just + 'curl' if timeout is not defined. + + This happens because AddFetchTimeout doesn't retrieve all the + arguments + from the caller. + + [alk@tut.by: updated commit message] + Signed-off-by: Aliaksey Kandratsenka + +M src/pprof + +commit 54505f1d50c2d1f4676f5e87090b64a117fd980e +Author: Aliaksey Kandratsenka +Date: Sun Aug 2 19:28:03 2015 -0700 + + help clang with inlining important fast-path functions + + Clang's recent focus on code size doesn't help us in malloc fast-path + because somehow clang completely ignores inline directives. + + In order to help clang generate code that was actually intended by + original authors, we're adding always_inline attribute to key + fast-path functions. + + Clang also guessed likely branch "wrong" in couple places. Which is + now addressed by UNLIKELY declarations there. + +M src/tcmalloc.cc +M src/thread_cache.h + +commit 73c0c8c61b84e268bafd961bf304b2e4d296142f +Author: Aliaksey Kandratsenka +Date: Sun Aug 2 19:09:02 2015 -0700 + + moved do_mallor_or_cpp_alloc in better place + +M src/tcmalloc.cc + +commit 41aca070e85258d9d47b0ac47f5eddece8bf45ba +Author: Aliaksey Kandratsenka +Date: Sun Aug 2 10:53:32 2015 -0700 + + always set errno to ENOMEM on OOM condition and in single place + + While standards do not require us to set errno to ENOMEM in certain + places (like posix_memalign), existing code may sometimes set it + (i.e. because mmap or sbrk couldn't get memory from kernel) + anyways. And from my reading of glibc, it's malloc is doing more or + less same by just always setting ENOMEM on OOM condition. + + This commit also eliminates some functions (XXX_no_errno) that are not + needed anymore. + +M src/debugallocation.cc +M src/page_heap.cc +M src/tcmalloc.cc + +commit c4493874cd3b662d2778f3b79a3096ae61569b67 +Author: Aliaksey Kandratsenka +Date: Sat Aug 1 22:20:15 2015 -0700 + + deal with OOM handling in one place and prior to returning result + + This commit removes 4 (four!) duplicates of C++ OOM handling. And + introduces one helper for that. + + Other change is that malloc doesn't have to check tc_new_mode anymore + until it _actually_ deals with OOM condition. Which shaves off couple + instructions from fast-path. + +M src/debugallocation.cc +M src/tcmalloc.cc + +commit 09448a8fe977eaa083340c2504caac8820832179 +Author: Aliaksey Kandratsenka +Date: Sun Aug 2 18:11:04 2015 -0700 + + added tcmalloc_unittest path with TCMALLOC_HEAP_LIMIT_MB=512 + + I.e. so that we can exercise "voluntary" OOM conditions better. + +M src/tests/tcmalloc_unittest.sh + +commit 73fb7c7eb37e488bab8298be4110e30d83af2184 +Author: Aliaksey Kandratsenka +Date: Sun Aug 2 01:47:55 2015 -0700 + + added test on errno = ENOMEM on out of memory + +M src/tests/tcmalloc_unittest.cc + +commit eb725ff26371dfb5ae2523802c6abe75833cacef +Author: Aliaksey Kandratsenka +Date: Sat Aug 1 20:54:39 2015 -0700 + + unbreak heap-profiler-unittest on gcc 5 + + gcc 5 has got nice new optimization (-fipa-icf) which merges identical + functions into one. And that causes heap-profiler_unittest to fail + since it expects to see both Allocate and Allocate2 in heap + profiles. And smart GCC detects that they are same function and makes + one function out of two and thus breaks this test. + + New code simply adds (disabled) logging calls to make those functions + non-identical. + +M src/tests/heap-profiler_unittest.cc + +commit 53833298f3822b2b8b78c9dc85160d65d78a6857 +Author: Aliaksey Kandratsenka +Date: Sat Aug 1 19:46:34 2015 -0700 + + unbreak heap_checker_unittest on gcc 5 + + GCC 5 ended up too smart and optimized out assignment of allocated + block to global variable. Which caused test to fail since it triggered + unexpected "leak". + +M src/tests/heap-checker_unittest.cc + +commit 024bae96ce8e1591993fc0da191ce0a92d609481 +Author: Aliaksey Kandratsenka +Date: Sat Aug 1 17:41:42 2015 -0700 + + dropped support for PREANSINEW define which nobody needs anymore + +M src/debugallocation.cc +M src/tcmalloc.cc + +commit 64e0133901a20f83c41adb36748fd19d21228515 +Author: Aliaksey Kandratsenka +Date: Sun May 3 12:55:47 2015 -0700 + + added trivial malloc fast-path benchmark + + While this is not good representation of real-world production malloc + behavior, it is representative of length (instruction-wise and well as + cycle-wise) of fast-path. So this is better than nothing. + +M .gitignore +M Makefile.am +A benchmark/malloc_bench.cc + +commit e1d1311cfb6312cd44e086c879f3e95cbfa0eb9d +Author: Tom Conerly +Date: Mon Jul 27 11:35:29 2015 -0700 + + issue-699: Free list on error paths + +M src/heap-profile-table.cc + +commit b5b79860fd2b8e1a9b0573e93f942695f2992b59 +Author: Aliaksey Kandratsenka +Date: Sat Aug 1 11:24:56 2015 -0700 + + issue-702: correctly declare arg-less functions in profiler.h + + This is patch by user mitchblank. + + From his words: + + The problem is pretty simple. Ancient C code allowed declarations + without argument prototypes, i.e. + + int foo(); + + For compatibility this is still accepted. If you want to declare a + function with zero prototypes the correct way to do it is: + + int foo(void); + + C++ also accepts this syntax, but it's not needed there. + + Normally compilers still accept the old-style entries, but with + sufficient warning flags gcc will complain about them. It is good for + header files to have the explicit "void" argument so all compilers are + kept happy. + + I'm attaching a simple patch to add the "void" parameter to that file. + I haven't checked if other headers have the same problem (I'm just + using the profiler at the moment) + + + + In fact "int foo()" means "foo accepts any args" and we really want + "foo has no args". For which int foo (void) is right declaration. + +M src/gperftools/profiler.h + +commit 7df7f14c949d89d9c3f5c7c339bbdda81fb8abc7 +Author: Aliaksey Kandratsenka +Date: Sat Jun 13 21:35:06 2015 -0700 + + issue-693: enable futex usage on arm + + This patch was contributed by user spotrh. + +M src/base/linux_syscall_support.h +M src/base/spinlock_linux-inl.h + +commit cb998e56d763cfe901cf30a692d4cfd4f85259ae +Author: Aliaksey Kandratsenka +Date: Sat Jun 13 21:28:28 2015 -0700 + + issue-693: convert sys_futex to it's 6-arg form + + Because sys_futex actually takes 6 args in more recent kernels (even + though last two args are unused for FUTEX_{WAKE,WAIT}. + + This is patch contributed by user spotrh. + +M src/base/linux_syscall_support.h + +commit 36066b8df4bc516ade5209a1f60bd84d6448b531 +Author: Aliaksey Kandratsenka +Date: Sat Jun 27 21:15:30 2015 -0700 + + issue-695: implementated TCMALLOC_TRACE_FILE variable + + This is contributed by Paolo Bonzini. + + This commit adds TCMALLOC_TRACE_FILE environment variable, which if + defined overrides location of malloc trace file. + +M src/debugallocation.cc + +commit c4069d2d37b67296d675c2d1de42a46dc6d43efc +Author: Brian Silverman +Date: Tue Jun 16 16:56:48 2015 -0700 + + Add empty virtual destructor to class with virtual methods. + + Clang 3.5 has a warning about deleting objects with virtual methods + through non-virtual destructors which was triggered. I'm not sure + whether this actually creates any undefined or otherwise incorrect + behavior, but it seems like a good thing to fix regardless. + + Example compiler warning: + third_party/gperftools/src/tests/profile-handler_unittest.cc:282:5: + error: + delete called on '(anonymous namespace)::BusyThread' that has + virtual + functions but non-virtual destructor [-Wdelete-non-virtual-dtor] + delete busy_worker_; + ^ + +M src/tests/profile-handler_unittest.cc + +commit 019362fefcdca39a46d1a831ed46266c24b9a273 +Author: Patrick LoPresti +Date: Mon May 25 11:56:51 2015 -0700 + + Add support for CPUPROFILE_TIMER_SIGNAL environment variable. + + Which both enables per-thread timers and allows the signal number for + the timer to be selected. + + [alk@tut.by: reformatted commit message for subject line length] + Signed-off-by: Aliaksey Kandratsenka + +M src/profile-handler.cc +M src/tests/profile-handler_unittest.cc + +commit 81d8d2a9e7f941a2051781fd0fe62c683c32f1ef +Author: Milton Chiang +Date: Wed May 13 21:53:05 2015 +0800 + + Add "ARMv8-A" to the supporting list of ARM architecture. + +M src/base/arm_instruction_set_select.h + +commit 64d1a86cb8da245c982d470a7dfdd635197e6e5e +Author: Aliaksey Kandratsenka +Date: Sat May 9 15:38:12 2015 -0700 + + include time.h for struct timespec on Visual Studio 2015 + + This patch was submitted by user wmamrak. + +M src/windows/port.h + +commit 7013b219970a329d1db58fbd7fa7c907bec8dbba +Author: Aliaksey Kandratsenka +Date: Sat May 9 12:48:11 2015 -0700 + + hook mi_force_{un,}lock on OSX instead of pthread_atfork + + This is patch by Anton Samokhvalov. + + Apparently it helps with locking around forking on OSX. + +M src/libc_override_osx.h +M src/static_vars.cc + +commit f25f8e0bf2d361f852929848d79d7ba54586c352 +Author: Angus Gratton +Date: Mon May 4 08:18:43 2015 +1000 + + Clarify that only tcmalloc_minimal is supported on Windows. + +M INSTALL +M README_windows.txt + +commit 772a686c45455893708178d3b59b1d3b571015aa +Author: Aliaksey Kandratsenka +Date: Sun May 3 13:15:16 2015 -0700 + + issue-683: fix compile error in clang with -m32 and 64-bit off_t + +M src/malloc_hook_mmap_linux.h + +commit 0a3bafd645764250732f3c0627534142568f6f1f +Author: Aliaksey Kandratsenka +Date: Sat Apr 11 10:35:53 2015 -0700 + + fix typo in PrintAvailability code + + This is patch contributed by user ssubotin. + +M src/windows/nm-pdb.c + +commit 6ce10a2a05f13803061538d5c77e89695de59be4 +Author: Matt Cross +Date: Thu Mar 26 16:13:56 2015 -0400 + + Add support for printing collapsed stacks for generating flame graphs. + +M src/pprof + +commit 2c1a165fa56a6f8dff8fa2662ceda971ad676ead +Author: Matt Cross +Date: Thu Mar 26 12:10:23 2015 -0400 + + Add support for reading debug symbols automatically on systems + where shared libraries with debug symbols are installed at + "/usr/lib/debug/.debug", such as RHEL and CentOS. + +M src/pprof + +commit 2e654956287043a30aeaec20e5c19650358af618 +Author: Jonathan Lambrechts +Date: Fri Feb 13 18:52:21 2015 +0100 + + callgrind : handle inlined functions + +M src/pprof + +commit 90d7408d381cf2ad68ce4974cbccd51ed5222ca3 +Author: Jonathan Lambrechts +Date: Fri Feb 13 18:51:33 2015 +0100 + + pprof : callgrind : fix unknown files + +M src/pprof + +commit aa963a24ae7a74b095a631ea6a86cd071c453911 +Author: Aliaksey Kandratsenka +Date: Mon Feb 9 08:35:03 2015 -0800 + + issue-672: fixed date of news entry of gperftools 2.4 release + + It is 2015 and not 2014. Spotted and reported by Armin Rigo. + +M NEWS + +commit c66aeabdbacbfd3aff7a6633f34526ca32642f67 +Author: Aliaksey Kandratsenka +Date: Sat Jan 10 14:35:54 2015 -0800 + + fixed default value of HEAP_PROFILER_TIME_INTERVAL in .html doc + +M doc/heapprofile.html + +commit 689e4a5bb4b2a8afecb85e83b8e4f294f80b6124 +Author: Aliaksey Kandratsenka +Date: Sat Jan 10 12:26:51 2015 -0800 + + bumped version to 2.4 + +M NEWS +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 3f5f1bba0c2cb4862c38b0c9050f1cede8a5c344 +Author: Aliaksey Kandratsenka +Date: Sun Dec 28 18:18:27 2014 -0800 + + bumped version to 2.4rc + +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit c4dfdebc796c2e802db686a7eea483f3d31edbcf +Author: Aliaksey Kandratsenka +Date: Sun Dec 28 17:53:02 2014 -0800 + + updated NEWS for gperftools 2.4rc + +M NEWS + +commit 0096be5f6f0bb2a01438ee78b7bb6158ffa5a1fb +Author: Aliaksey Kandratsenka +Date: Sat Dec 20 17:17:41 2014 -0800 + + pprof: allow disabling auto-removal of "constant 2nd frame" + + "constand 2nd frame" feature is supposed to detect and workaround + incorrect cpu profile stack captures where parts of or whole cpu + profiling signal handler frames are not skipped. + + I've seen programs where this feature incorrectly removes non-signal + frames. + + Plus it actually hides bugs in stacktrace capturing which we want be + able to spot. + + There is now --no-auto-signal-frm option for disabling it. + +M src/pprof + +commit 4859d8020579cd8db8b1f8bc6af382104b38f96f +Author: Aliaksey Kandratsenka +Date: Sat Dec 20 19:56:13 2014 -0800 + + cpuprofiler: drop correct number of signal handler frames + + We actually have 3 and not 2 of them. + +M src/profiler.cc + +commit 812ab1ee7e4365e6a9568834c7e8f4aef10018fb +Author: Aliaksey Kandratsenka +Date: Sat Dec 20 19:53:12 2014 -0800 + + pprof: eliminate duplicate top frames if dropping signal frames + + In cpu profiles that had parts of signal handler we could have + situation like that: + + * PC + * signal handler frame + * PC + + Specifically when capturing stacktraces via libunwind. + + For such stacktraces pprof used to draw self-cycle in functions + confusing everybody. Given that me might have a number of such + profiles in the wild it makes sense to treat that duplicate PC issue. + +M src/pprof + +commit e6e78315e4761ad121a5eeb4fdffe3571d81ac17 +Author: Aliaksey Kandratsenka +Date: Sat Dec 20 19:04:43 2014 -0800 + + cpuprofiler: better explain deduplication of top stacktrace entry + +M src/profiler.cc + +commit 24b8ec28464712bc124af5655ebf877fb3f79032 +Author: Aliaksey Kandratsenka +Date: Sat Dec 20 17:10:38 2014 -0800 + + cpuprofiler: disable capturing stacktrace from signal's ucontext + + This was reported to cause problems due to libunwind occasionally + returning top level pc that is 1 smaller than real pc which causes + problems. + +M src/stacktrace_libunwind-inl.h + +commit 83588de7204124c8d60703f169c2f3af8aa0ce5f +Author: Aliaksey Kandratsenka +Date: Sat Dec 20 17:04:10 2014 -0800 + + pprof: added support for dumping stacks in --text mode + + Which is very useful for diagnosing stack capturing and processing + bugs. + +M src/pprof + +commit 2f29c9b06220ce6ad75d5ab2b98e9f63ade79eea +Author: Aliaksey Kandratsenka +Date: Sat Dec 20 17:03:36 2014 -0800 + + pprof: made --show-addresses work + +M src/pprof + +commit b8b027d09a53dd6292d2f7c45aec40198628a808 +Author: Raphael Moreira Zinsly +Date: Tue Dec 23 10:55:22 2014 -0200 + + Make PPC64 use 64K of internal page size for tcmalloc by default + + This patch set the default tcmalloc internal page size to 64K when + built on PPC. + +M configure.ac + +commit 3f55d874be8812aef9f0f567048188584962b4c1 +Author: Raphael Moreira Zinsly +Date: Tue Dec 23 10:29:49 2014 -0200 + + New configure flags to set the alignment and page size of tcmalloc + + Added two new configure flags, --with-tcmalloc-pagesize and + --with-tcmalloc-alignment, in order to set the tcmalloc internal page + size and tcmalloc allocation alignment without the need of a compiler + directive and to make the choice of the page size independent of the + allocation alignment. + +M INSTALL +M configure.ac +M src/common.h + +commit 1035d5c18f64d114ac790b92a96f3b3a1a301eb9 +Author: Aliaksey Kandratsenka +Date: Sun Dec 21 19:52:34 2014 -0800 + + start building malloc_extension_c_test even with static linking + + Comment in Makefile.am stating that it doesn't work with static + linking is not accurate anymore. + +M Makefile.am + +commit d570a6391cf4c5a5570e22ada5cf0b324c7b8dfd +Author: Aliaksey Kandratsenka +Date: Sun Dec 21 19:33:25 2014 -0800 + + unbreak malloc_extension_c_test on clang + + Looks like even force_malloc trick was not enough to force clang to + actually call malloc. I'm now calling tc_malloc directly to prevent + that smartness. + +M src/tests/malloc_extension_c_test.c + +commit 4ace8dbbe2e04da1029a539c72b90dee1724c33f +Author: Aliaksey Kandratsenka +Date: Sun Dec 21 18:49:47 2014 -0800 + + added subdir-objects automake options + + This is suggested by automake itself regarding future-compat. + +M .gitignore +M Makefile.am + +commit f72e37c3f99d942dd648e392abc65f294aa94fa8 +Author: Aliaksey Kandratsenka +Date: Sun Dec 21 18:27:03 2014 -0800 + + fixed C++ comment warning in malloc_extension_c.h from C compiler + +M src/gperftools/malloc_extension_c.h + +commit f94ff0cc0943c7b7bb9390f9d83a57c9d9e11fd0 +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 14:41:36 2014 -0800 + + made AtomicOps_x86CPUFeatureStruct hidden + + So that access to has_sse2 is faster under -fPIC. + +M src/base/atomicops-internals-x86.h + +commit 987a724c23df4b29eb457e96bb5c1bbab15dc90e +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 14:20:20 2014 -0800 + + dropped atopmicops workaround for irrelevant Opteron locking bug + + It's not cheap at all when done in this way (i.e. without runtime + patching) and apparently useless. + + It looks like Linux kernel never got this workaround at all. See + bugzilla ticket: https://bugzilla.kernel.org/show_bug.cgi?id=11305 + + And I see no traces of this workaround in glibc either. + + On the other hand, opensolaris folks apparently still have it (or + something similar, based on comments on linux bugzilla) in their code: + https://github.com/illumos/illumos-gate/blob/32842aabdc7c6f8f0c6140a256cf42cf5404fefb/usr/src/uts/i86pc/os/mp_startup.c#L1136 + + And affected CPUs (if any) are from year 2008 (that's 6 years now). + + Plus even if somebody still uses those cpus (which is unlikely), they + won't have working kernel and glibc anyways. + +M src/base/atomicops-internals-x86.cc +M src/base/atomicops-internals-x86.h + +commit 7da5bd014d77ddaf694054b1e3ae0a3ef92ab384 +Author: Aliaksey Kandratsenka +Date: Sat Dec 20 21:18:07 2014 -0800 + + enabled aggressive decommit by default + + TCMALLOC_AGGRESSIVE_DECOMMIT=f is one way to disable it and + SetNumericProperty is another. + +M src/static_vars.cc +M src/tests/tcmalloc_unittest.sh + +commit 51b0ad55b3267caff6cd2d25815bfb913179b526 +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 17:36:49 2014 -0800 + + added basic unit test for singular malloc hooks + +M src/tests/malloc_extension_c_test.c + +commit bce72dda078d2cb3e9745077f9903e642a966131 +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 17:12:05 2014 -0800 + + inform compiler that tcmalloc allocation sampling is unlikely + + Now compiler generates slightly better code which produces jump-less + code for common case of not sampling allocations. + +M src/tcmalloc.cc + +commit 4f051fddcd7af53e1607b6a4866ffa461a0033ef +Author: Aliaksey Kandratsenka +Date: Sat Mar 15 13:18:28 2014 -0700 + + eliminated CheckIfKernelSupportsTLS + + We don't care about pre-2.6.0 kernels anymore. So we can assume that + if compile time check worked, then at runtime it'll work. + +M src/tcmalloc.cc +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/port.cc + +commit 81291ac3992ec7500faf2026c72feb80c9634dc3 +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 16:48:45 2014 -0800 + + set elf visibility to hidden for malloc hooks + + To speed up access to them under -fPIC. + +M src/malloc_hook-inl.h + +commit 105c004d0c84137f32cc71b8d3f7899fcc8c2e72 +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 14:40:30 2014 -0800 + + introduced ATTRIBUTE_VISIBILITY_HIDDEN + + So that we can disable elf symbol interposition for certain + perf-sensitive symbols. + +M src/base/basictypes.h + +commit 6a6c49e1f53df3d00a0661a86090534146ce686c +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 16:23:06 2014 -0800 + + replaced separate singular malloc hooks with faster HookList + + Specifically, we can now check in one place if hooks are set at all, + instead of two places. Which makes fast path shorter. + +M src/malloc_hook-inl.h +M src/malloc_hook.cc + +commit ba0441785bae214566008e69adcd915800d9dbb3 +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 16:13:54 2014 -0800 + + removed extra barriers in malloc hooks mutation methods + + Because those are already done under spinlock and read-only and + lockless Traverse is already tolerant to slight inconsistencies. + +M src/malloc_hook.cc + +commit 890f34c77ef79dfe1e00ce36a3f91aee7fe759b7 +Author: Aliaksey Kandratsenka +Date: Sun Nov 9 16:08:59 2014 -0800 + + introduced support for deprecated singular hooks into HookList + + So that we can later drop separate singular hooks. + +M src/malloc_hook-inl.h +M src/malloc_hook.cc + +commit 81ed7dff11de915b12c4111d403e52c81c786f82 +Author: Aliaksey Kandratsenka +Date: Sun Dec 7 13:33:40 2014 -0800 + + returned date of 2.3rc in NEWS back + +M NEWS + +commit 463a619408219fff8955d47a71de1aab31ebd129 +Author: Aliaksey Kandratsenka +Date: Sun Dec 7 12:53:35 2014 -0800 + + bumped version to 2.3 + +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 76e8138e12567e2ee1f638e8fcffadc2ca1de83d +Author: Aliaksey Kandratsenka +Date: Sun Dec 7 12:46:49 2014 -0800 + + updated NEWS for gperftools 2.3 + +M NEWS + +commit 8eb4ed785ae883acb6425fd980e9d3e6bdcab89d +Author: Raphael Moreira Zinsly +Date: Thu Nov 27 14:11:09 2014 -0200 + + Added option to disable libunwind linking + + This patch adds a configure option to enable or disable libunwind + linking. + The patch also disables libunwind on ppc by default. + +M configure.ac + +commit 3b94031d21fac39ce5be820f4f8bc37626ed4c08 +Author: Aliaksey Kandratsenka +Date: Thu Nov 27 11:48:08 2014 -0800 + + compile libunwind unwinder only of __thread is supported + + This fixed build on certain OSX that I have access to. + +M src/stacktrace.cc + +commit 3ace468202a8647a16134d0bb42fa497fa3ec0d4 +Author: Aliaksey Kandratsenka +Date: Thu Nov 27 10:43:11 2014 -0800 + + issue-658: correctly close socketpair fds when socketpair fails + + This applies patch by glider. + +M src/symbolize.cc + +commit e7d5e512b068fb76f5eeed7985bebd9c0d14e226 +Author: Aliaksey Kandratsenka +Date: Sun Nov 2 20:02:12 2014 -0800 + + bumped version to 2.3rc + +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 1d44d378513a8782c058833118b664f38214810b +Author: Aliaksey Kandratsenka +Date: Sun Nov 2 19:38:29 2014 -0800 + + updated NEWS for gperftools 2.3rc + +M NEWS + +commit 1108d83cf4a1692fce3b736e16d3e98c33329177 +Author: Aliaksey Kandratsenka +Date: Sun Sep 7 13:09:14 2014 -0700 + + implemented cpu-profiling mode that profiles threads separately + + Default mode of operation of cpu profiler uses itimer and + SIGPROF. This timer is by definition per-process and no spec defines + which thread is going to receive SIGPROF. And it provides correct + profiles only if we assume that probability of picking threads will be + proportional to cpu time spent by threads. + + It is easy to see, that recent Linux (at least on common SMP hardware) + doesn't satisfy that assumption. Quite big skews of SIGPROF ticks + between threads is visible. I.e. I could see as big as 70%/20% + division instead of 50%/50% for pair of cpu-hog threads. (And I do see + it become 50/50 with new mode) + + Fortunately POSIX provides mechanism to track per-thread cpu time via + posix timers facility. And even more fortunately, Linux also provides + mechanism to deliver timer ticks to specific threads. + + Interestingly, it looks like FreeBSD also has very similar facility + and seems to suffer from same skew. But due to difference in a way + how threads are identified, I haven't bothered to try to support this + mode on FreeBSD. + + This commit implements new profiling mode where every thread creates + posix timer which tracks thread's cpu time. Threads also also set up + signal delivery to itself on overflows of that timer. + + This new mode requires every thread to be registered in cpu + profiler. Existing ProfilerRegisterThread function is used for that. + + Because registering threads requires application support (or suitable + LD_PRELOAD-able wrapper for thread creation API), new mode is off by + default. And it has to be manually activated by setting environment + variable CPUPROFILE_PER_THREAD_TIMERS. + + New mode also requires librt symbols to be available. Which we do not + link to due to librt's dependency on libpthread. Which we avoid due + to perf impact of bringing in libpthread to otherwise single-threaded + programs. So it has to be either already loaded by profiling program + or LD_PRELOAD-ed. + +M Makefile.am +M configure.ac +M src/maybe_threads.cc +M src/maybe_threads.h +M src/profile-handler.cc +M src/tests/profile-handler_unittest.cc + +commit 714bd93e42535e759716324a90fbb395506499d2 +Author: Aliaksey Kandratsenka +Date: Sun Aug 10 20:28:11 2014 -0700 + + drop workaround for too old redhat 7 + + Note that this is _not_ RHEL7 but original redhat 7 from early 2000s. + +M configure.ac + +commit 8de46e66fcd2577758ab297b553bb0f468d8a97a +Author: Aliaksey Kandratsenka +Date: Sun Aug 10 19:38:07 2014 -0700 + + don't add leaf function twice to profile under libunwind + +M src/profiler.cc + +commit 2e5ee0488996437aeef2028ad95d969b56abcad1 +Author: Aliaksey Kandratsenka +Date: Sun Aug 10 12:19:45 2014 -0700 + + pprof: indicate if using remote profile + + Missing profile file is common source of confusion. So a bit more + clarify is useful. + +M src/pprof + +commit 6efe96b41c9531f68f806faa0464445f884178ce +Author: Aliaksey Kandratsenka +Date: Sat Oct 11 15:09:18 2014 -0700 + + issue-493: correctly detect __ARM_ARCH_6ZK__ for MemoryBarrier + + Which should fix issue reported by user pedronavf + +M src/base/atomicops-internals-arm-v6plus.h + +commit 8e97626378d5c4151a480dea1964e25969c9311d +Author: Aliaksey Kandratsenka +Date: Sun Nov 2 11:28:30 2014 -0800 + + issue-655: use safe getenv for aggressive decommit mode flag + + Because otherwise we risk deadlock due to too early use of getenv on + windows. + +M src/base/commandlineflags.h +M src/static_vars.cc + +commit 8c3dc52fcfe02412a529769a22cbc75388a5d368 +Author: Aliaksey Kandratsenka +Date: Sat Oct 18 16:35:57 2014 -0700 + + issue-654: [pprof] handle split text segments + + This applies patch by user simonb. + + Quoting: + + Relocation packing splits a single executable load segment into two. + Before: + + LOAD 0x000000 0x00000000 0x00000000 0x2034d28 0x2034d28 + R E 0x1000 + LOAD 0x2035888 0x02036888 0x02036888 0x182d38 0x1a67d0 + RW 0x1000 + + After: + LOAD 0x000000 0x00000000 0x00000000 0x14648 0x14648 R + E 0x1000 + LOAD 0x014648 0x0020c648 0x0020c648 0x1e286e0 0x1e286e0 + R E 0x1000 + ... + LOAD 0x1e3d888 0x02036888 0x02036888 0x182d38 0x1a67d0 + RW 0x1000 + + The .text section is in the second LOAD, and this is not at + offset/address zero. The result is that this library shows up in + /proc/self/maps as multiple executable entries, for example (note: + this trace is not from the library dissected above, but rather from an + earlier version of it): + + 73b0c000-73b21000 r-xp 00000000 b3:19 786460 + /data/.../libchrome.2160.0.so + 73b21000-73d12000 ---p 00000000 00:00 0 + 73d12000-75a90000 r-xp 00014000 b3:19 786460 + /data/.../libchrome.2160.0.so + 75a90000-75c0d000 rw-p 01d91000 b3:19 786460 + /data/.../libchrome.2160.0.so + + When parsing this, pprof needs to merge the two r-xp entries above + into a single entry, otherwise the addresses it prints are incorrect. + + The following fix against 2.2.1 was sufficient to make pprof --text + print the correct output. Untested with other pprof options. + +M src/pprof + +commit 44c61ce6c4c713b194330641f400bbf64fd2abec +Author: Ricardo M. Correia +Date: Wed Oct 8 04:39:14 2014 +0200 + + Fix parsing /proc/pid/maps dump in CPU profile data file + + When trying to use pprof on my machine, the symbols of my program were + not being recognized. + + It turned out that pprof, when calculating the offset of the text list + of mapped objects (the last section of the CPU profile data file), was + assuming that the slot size was always 4 bytes, even on 64-bit + machines. + + This led to ParseLibraries() reading a lot of garbage data at the + beginning of the map, and consequently the regex was failing to + match on + the first line of the real (non-garbage) map. + +M src/pprof + +commit 2a28ef24ddf8013bff59914b10902f1fb07bf9b2 +Author: Aliaksey Kandratsenka +Date: Sat Sep 6 16:49:24 2014 -0700 + + Added remaining memory allocated info to 'Exiting' dump message + + This applies patch by user yurivict. + +M src/heap-profiler.cc + +commit bbf346a856d4a7c5c2ab0e65d7cccf3dc1f23f13 +Author: Adam McNeeney +Date: Fri Aug 22 10:01:24 2014 +0100 + + Cope with new addr2line outputs for DWARF4 + + Copes with ? for line number (converts to 0). + Copes with (discriminator ) suffixes to file/linenum (removes). + + Change-Id: I96207165e4852c71d3512157864f12d101cdf44a + +M src/pprof + +commit b08d760958dbacc8da822f7f3db76d58c95a114d +Author: Aliaksey Kandratsenka +Date: Sat Aug 23 14:45:08 2014 -0700 + + issue-641: Added --show_addresses option + + This applies patch by user yurivict. + +M src/pprof + +commit 3c326d9f200a527bba45f1d222aa6aff20d42bc3 +Author: Aliaksey Kandratsenka +Date: Tue Aug 19 08:14:08 2014 -0700 + + issue-644: fix possible out-of-bounds access in GetenvBeforeMain + + As suggested by user Ivan L. + +M src/base/sysinfo.cc + +commit f1ae3c446f34f6e8ac901caba281051ec269e4df +Author: jiakai +Date: Mon Jul 28 11:28:03 2014 -0700 + + Add an option to allow disabling stripping template argument in pprof + +M src/pprof + +commit a12890df2519d254d1c497b8e0a65bb8fc9e1ab2 +Author: Aliaksey Kandratsenka +Date: Sat Jul 26 14:12:42 2014 -0700 + + issue-635: allow whitespace in libraries paths + + This applies change suggested by user mich...@sebesbefut.com + +M src/pprof + +commit d5e36788d8bc626403dc020a86213cfc740ee73d +Author: Aliaksey Kandratsenka +Date: Sat Jul 26 13:59:22 2014 -0700 + + issue-636: fix prof/web command on Windows/MinGW + + This applies patch sent by user chaishushan. + +M src/pprof + +commit 4b788656bb9c480640d917d27d8a94a5eae436f5 +Author: Michael Pasieka +Date: Sun Jul 13 18:09:35 2014 -0700 + + added option to display stack traces in output for heap checker + + Quoting from email: + + I had the same question as William posted to stack overflow back on + Dec 9,2013: How to display symbols in stack trace of google-perftools + heap profiler (*). I dug into the source and realized the + functionality was not there but could be added. I am hoping that + someone else will find this useful/helpful. + + The patch I created will not attach so I am adding below. + + Enjoy! + + -- Michael + + * + http://stackoverflow.com/questions/20476918/how-to-display-symbols-in-stack-trace-of-google-perftools-heap-profiler + +M src/pprof + +commit 3abb5cb819bafe7004363f041c194afd827cb053 +Author: WenSheng He +Date: Mon Jun 30 14:39:13 2014 +0800 + + issue-630: The env var should be "CPUPROFILE" + + To enable cpu profile, the env var should be "CPUPROFILE", not + "PROFILE" + actually. + + Signed-off-by: Aliaksey Kandratsenka + +M src/gperftools/profiler.h + +commit fd81ec257883c6d5486e4568c955dff86dbed5c8 +Author: Aliaksey Kandratsenka +Date: Sat Jun 28 13:05:12 2014 -0700 + + issue-631: fixed miscompilation of debugallocation without mmap + + This applies patch sent by user iamxujian. + + Clearly, when I updated debugallocation to fix issue-464 I've broken + no-mmap path by forgetting closing brace. + +M src/debugallocation.cc + +commit 2e90b6fd72fec33aedf547d1977bdee6b77645b9 +Author: Aliaksey Kandratsenka +Date: Sat Jun 21 15:45:44 2014 -0700 + + bumped version to 2.2.1 + +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 577b940cc0a0ef207115d071a81127f93f02c083 +Author: Aliaksey Kandratsenka +Date: Sat Jun 21 15:39:46 2014 -0700 + + updated NEWS for 2.2.1 + +M NEWS + +commit 2fe4b329ad4d3f242b0bd73295375e70be79187b +Author: Aliaksey Kandratsenka +Date: Sun May 18 10:59:06 2014 -0700 + + applied chromium patch fixing some build issue on android + + This applies patch from: https://codereview.chromium.org/284843002/ by + jungjik.lee@samsung.com + +M src/libc_override_gcc_and_weak.h + +commit c009398e3239be8ae6185ad83685caf7458c49bb +Author: Aliaksey Kandratsenka +Date: Sun Jun 15 12:53:14 2014 -0700 + + issue-628:package missing stacktrace_powerpc-{linux,darwin}-inl.h + + This headers were missing in .tar.gz because they were not mentioned + anywhere in Makefile.am. + +M Makefile.am + +commit 81d99f21ede78ab8d5fec15d0055416ac1b581f3 +Author: Adhemerval Zanella +Date: Tue Jun 3 07:50:56 2014 -0500 + + issue-626: Fix SetupAggressiveDecommit initialization + + This patch fixes the SetupAggressiveDecommit initialization to + run after + pageheap_ creation. Current code it not enforcing it, since + InitStaticVars is being called outside the static_vars module. + +M src/static_vars.cc + +commit 846b775dfadb77901202ae7ddbac30ad1de7df01 +Author: Aliaksey Kandratsenka +Date: Sat May 3 17:50:11 2014 -0700 + + bumped version to 2.2 + +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit cdf8e1e932016bd5f1737e1f10bce07226228d15 +Author: Aliaksey Kandratsenka +Date: Sat May 3 17:44:38 2014 -0700 + + updated NEWS for 2.2 + +M NEWS + +commit 0807476f56b9dc024375467be0f0b07fae3ee7fb +Author: Aliaksey Kandratsenka +Date: Sat May 3 17:38:14 2014 -0700 + + issue-620: windows dll patching: fixed delete of old stub code + + After code for issue 359 was applied PreamblePatcher started using + it's own code to manage memory of stub code fragments. It's not using + new[] anymore. And it automatically frees stub code memory on + Unpatch. + + Clearly, author of that code forgot to remote that no more needed + delete call. With that delete call we end up trying to free memory + that was never allocated with any of known allocators and crash. + +M src/windows/patch_functions.cc + +commit facd7e83b341e069875b7c1cd7774cf671d932b5 +Author: Aliaksey Kandratsenka +Date: Sat Apr 19 11:08:51 2014 -0700 + + bumped version to 2.1.90 + +M configure.ac +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit e8e082af25952e9bd10c37c3f028c91fcbbd1cbd +Author: Aliaksey Kandratsenka +Date: Sat Apr 19 13:16:02 2014 -0700 + + updated NEWS for 2.2rc + +M NEWS + +commit 802fdb739e7aabcb15443030842a2137a5559338 +Author: Aliaksey Kandratsenka +Date: Sat Apr 12 18:07:11 2014 -0700 + + issue-610: use TCMallocGetenvSafe from inside malloc + + Instead of plain getenv. So that windows getenv implementation that + may call malloc does not deadlock. + +M src/common.cc +M src/thread_cache.cc + +commit 6b83516adefcf0806825f6dba2eb2232615d744b +Author: Aliaksey Kandratsenka +Date: Sat Apr 12 18:06:32 2014 -0700 + + issue-610: made dynamic_annotations.c use TCMallocGetenvSafe + +M src/base/dynamic_annotations.c + +commit aeef3b44201ba663c19ca1c97792b724346e84a9 +Author: Aliaksey Kandratsenka +Date: Sat Apr 12 18:05:59 2014 -0700 + + issue-610: introduced TCMallocGetenvSafe + + This is version of GetenvBeforeMain that's available to C code. + +M Makefile.am +M src/base/sysinfo.cc +A src/getenv_safe.h + +commit 125e5ed58b72550e6b74e0139c2c3dd5e262a6ec +Author: Aliaksey Kandratsenka +Date: Sat Apr 12 12:38:19 2014 -0700 + + don't enable backtrace() for stacktrace capturing by default + + Because we don't yet have a treatment for deadlocks that are caused by + (recursive) use of malloc from within that facility. + +M configure.ac + +commit 75b65f96b0bb44d70e0a461a03a3f8c928390283 +Author: Raphael Moreira Zinsly +Date: Tue Apr 8 17:45:13 2014 -0300 + + PowerPC: stacktrace function refactor and fixes + + This patch fixes the stacktrace creating when the function is + interrupted by a signal. For Linux, the vDSO signal trampoline + symbol is + compared against LR from stack backchain and handled different in that + case (since the signal trampoline layout a different stack frame). + + Because of this extensive change the PowerPC stacktrace code has now + been refactored to split in Linux and Darwin specific codes. + +M src/stacktrace.cc +A src/stacktrace_powerpc-darwin-inl.h +A src/stacktrace_powerpc-linux-inl.h + +commit 8deea9ff2a3e6eef8af64ea0727d6cb840c13769 +Author: Raphael Moreira Zinsly +Date: Tue Apr 8 17:44:08 2014 -0300 + + VDSOsupport cleanup + + This patch cleans up unused VDSO getcpu racking from VDSOsupport + class, + since the code is not used anywhere in gperftools and symbol name + is not + architecture independent. + +M src/base/vdso_support.cc +M src/base/vdso_support.h + +commit 9d5e1a0aa5a6ad1c7af18b65016fa5c9b7fccb47 +Author: Raphael Moreira Zinsly +Date: Tue Apr 8 17:43:11 2014 -0300 + + Fixed issues with heap checker on PPC64 LE. + + Fixed the wrapper for the syscall sys_clone and the test for heap + checker on PPC64 LE. Both use the ODP structure, which is only + used on BE architectures. + +M src/base/linux_syscall_support.h +M src/tests/heap-checker_unittest.cc + +commit 49237462c8ae7920332c1034c623e57b50a6109c +Author: Raphael Moreira Zinsly +Date: Tue Apr 8 17:42:17 2014 -0300 + + Fixed the way that pprof packed profile data in BE. + + pprof was writing profile data in a way that only works for + little-endian + files, this patch verifies if the system is big-endian and writes + packed + data correctly. + +M src/pprof + +commit a1ae66ef110bd87ff97903e86fd84c745db24646 +Author: Raphael Moreira Zinsly +Date: Tue Apr 8 17:37:29 2014 -0300 + + Fixed the use of addr2line to discover the separator symbol. + + In systems where addr2line has a version greater than 2.22 pprof fails + in discover the separator symbol (_fini). This patch identifies if + addr2line can find the symbol, otherwise pprof uses objdump to recover + a address that addr2line's newer versions can recognize as the + separator + function. + +M src/pprof + +commit 8b2e5ee831760a94bc407dc255a522eda242b04f +Author: Aliaksey Kandratsenka +Date: Tue Apr 1 22:29:11 2014 -0700 + + issue-614: use tc_memalign in ReallocAfterMemalloc test + + Because some OSes lack plain memalign. And we really need to test our + implementation which is always available via tc_malloc. + +M configure.ac +M src/tests/debugallocation_test.cc + +commit 0399af1019240e2d9127a588ddc8e31ff4656df0 +Author: Aliaksey Kandratsenka +Date: Tue Apr 1 21:30:27 2014 -0700 + + added tc_malloc_skip_new_handler + + This is port of corresponding chromium change at: + https://codereview.chromium.org/55333002/ + + Basic idea is that sometimes apps that use tc_set_new_mode in order to + have C++ out-of-memory handler catch OOMs in malloc, need to invoke + usual malloc that returns 0 on OOM. + + That new API is exactly for that. It'll always return NULL on OOM even + if tc_new_mode is set to true. + +M src/debugallocation.cc +M src/gperftools/tcmalloc.h.in +M src/tcmalloc.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in + +commit d77317247e1c8de1ea4e0419318b26f636e64431 +Author: Aliaksey Kandratsenka +Date: Sat Mar 1 12:13:02 2014 -0800 + + issue deprecation warning on use of google/ headers + +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/google/malloc_hook.h +M src/google/malloc_hook_c.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/google/tcmalloc.h + +commit e7297f0c14b0c09ec52707ed7477c7aee43a1882 +Author: Aliaksey Kandratsenka +Date: Sat Mar 15 12:44:11 2014 -0700 + + speed up MallocExtension::instance() + + It was reported that pthread_once is expensive, especially on ppc. + + In new implementation in hot path instead of doing potentially + expensive atomic read with barrier, we do just plain read. + + It's slightly less robust than older implementation, but it should be + faster. + + New code is making assumption that programs do not spawn threads + before main() is called. And therefore all variables & modules are + initialized before threads are created. Which looks like pretty safe + assumption. With that assumption, doing plain read is safe, because + current_instance is initialized as part of module init and therefore + before threads are spawned. + + This patch is based on feedback of Adhemerval Zanella. + +M src/malloc_extension.cc + +commit df227794361f9725eca7420d95e65ab997c79716 +Author: Adhemerval Zanella +Date: Sun Feb 2 19:32:37 2014 -0200 + + Fix getpc_test for PPC64v2 LE + + This patch fix the PPC64 guard to get the function address for + PPC64v2. + It removes the use of an indirection (to get the ODP text address), + since the PPCv2 does not have function descriptors. + +M src/tests/getpc_test.cc + +commit e3deb42d5dcdeeb8a340d03f207f2488ef3fb2eb +Author: Aliaksey Kandratsenka +Date: Sat Mar 29 13:28:01 2014 -0700 + + issue-613: remove friend declaration from HeapLeakChecker + + This applies patch by davide.italiano@10gen.com: + + heap-checker.h contains the following friend declaration of main: + friend int main(int, char**). + + C99 allows another declaration of main, i.e. int main(int, char**, + char**), and if code uses it and includes the heap-checker header, + this might result in a conflict, e.g. + + error: declaration of C function 'int main(int, char**, char**)' + conflicts with + int main(int argc, char* argv[], char** envp) + + Actually the comment above the friend declaration of main() mentions + that this is required to get the unittest working and for other + internal usage, but I'm not completely sure if this is true as long as + I'm able to build and run the unittest removing the declaration. + +M src/gperftools/heap-checker.h + +commit 1a28754656bd6dfc1297d62a4c5811b0a5f03180 +Author: Aliaksey Kandratsenka +Date: Sat Mar 29 13:23:00 2014 -0700 + + issue-612: added missing include for std::min + + Otherwise Visual Studio 2013 rightfully complains + +M src/windows/system-alloc.cc + +commit fe566314267fc3f67c5068d0afe004b1733ff19a +Author: Aliaksey Kandratsenka +Date: Sat Mar 1 12:38:08 2014 -0800 + + unbreak building with libunwind + + Caused by premature merging of previous patch. + + When we're searching for backtrace in libexecinfo and don't find it, + we should not reset UNWIND_LIBS to empty value. + + Correct fix is to first search for backtrace in libunwind and then to + search for it in libexecinfo. + +M configure.ac + +commit 91179961490a601f2c611889b3075e995fa5437e +Author: Thomas Klausner +Date: Tue Feb 25 21:41:28 2014 +0100 + + Look for backtrace() in libexecinfo as well. + + Signed-off-by: Aliaksey Kandratsenka + +M configure.ac + +commit fd3379a213b2a99a72a7544b6208056daf15d0d2 +Author: Thomas Klausner +Date: Tue Feb 25 21:41:07 2014 +0100 + + Fix unportable test(1) construct. + + Signed-off-by: Aliaksey Kandratsenka + +M configure.ac + +commit a7223c2a14431ffd783117c55f84a2c84423d313 +Author: Thomas Klausner +Date: Tue Feb 25 21:40:11 2014 +0100 + + Test for memalign in configure.ac. Disable a test that uses memalign + if it is not found. + + Signed-off-by: Aliaksey Kandratsenka + +M configure.ac +M src/tests/debugallocation_test.cc + +commit bd9665ebbe1aca5e1ba993de4214e64ee8bbe43a +Author: Aliaksey Kandratsenka +Date: Sat Feb 22 13:46:42 2014 -0800 + + issue-489: added tcmalloc test pass with chromium-style decommit + +M src/tests/tcmalloc_unittest.sh + +commit 6a000d6dd5968ac29f8fc43f7dfc736338e11781 +Author: Aliaksey Kandratsenka +Date: Sat Feb 22 13:46:11 2014 -0800 + + issue-489: added unit test for chromium-style decommitting + +M src/tests/tcmalloc_unittest.cc + +commit eb2d69014cb3e163f2ab3ed676fbedf5c3a97caa +Author: Aliaksey Kandratsenka +Date: Sat Feb 22 13:10:08 2014 -0800 + + issue-489: made tests pass on enabled chromium-style decommitting + +M src/tests/tcmalloc_unittest.cc + +commit a92fc76f72318f7a46e91d9ef6dd24f2bcf44802 +Author: Aliaksey Kandratsenka +Date: Sat Feb 22 13:09:05 2014 -0800 + + issue-489: enable chromium-style decommitting on env variable + + TCMALLOC_AGGRESSIVE_DECOMMIT=t now enables aggressive decommitting by + default. + +M src/static_vars.cc + +commit c7ce50cd04ea08bd20d4ea4b2924e6a4451d2565 +Author: Aliaksey Kandratsenka +Date: Sat Nov 9 17:35:24 2013 -0800 + + issue-489: implemented API to set chromium-style de-committing + + Chrome has code to decommit (release back to OS) every span that's + released. I don't want to make it default, but indeed some + applications may want to enable this mode. + + The code itself is taken from 2-way-merging of code from Chromium + fork. + +M src/page_heap.cc +M src/page_heap.h +M src/tcmalloc.cc + +commit 1d707cd4a3dfe6f238a530f945291acfd5995042 +Author: Aliaksey Kandratsenka +Date: Sat Nov 9 17:19:34 2013 -0800 + + issue-489: fixed warning + + Computing certain values just for ASSERT raises just warning from + compiler because if NDEBUG is set those are dead code. + +M src/page_heap.cc + +commit 91bffcbad60d84beebe8b69a1db6c85c10fc04bf +Author: Aliaksey Kandratsenka +Date: Sat Nov 9 16:22:35 2013 -0800 + + issue-489: ported chromium windows decommitting code + + I tried to do it cleanly with merges but chromium code has so many + relevant commits (with frequent reverts) that makes it near + impossible. + + Simpler 2-way emerge-files worked in the end. I've removed chromium's + aggressive 'always decommit' behavior which I want to make optional + later. + + Majority of this work is the following commits (but there are more, + particularly against port.cc): + + commit 9c92338c5f8770c440799d24387c3733fd6d826b + Author: jamesr@chromium.org + + Date: Tue Oct 6 18:33:31 2009 +0000 + + Tracks the amount of committed vs uncommitted memory in tcmalloc's + page heap's freelists + + Keeps track of the number of reserved but not committed pages in + the freelist and uses that to calculate a waste metric, which is + the ratio of committed pages vs pages used by the application. + This is exposed in the GetStats() call (which is used for + about:tcmalloc) and through GetNumericalProperty() in Malloc + + BUG=none + TEST=open about:tcmalloc and monitor 'WASTE' columns while using + the browser + + Review URL: http://codereview.chromium.org/251065 + + git-svn-id: svn://svn.chromium.org/chrome/trunk/src@28133 + 0039d316-1c4b-4281-b951-d872f2087c98 + + commit aef4f1be3eec2059a7c6e2c106050a5f3d6ccf12 + Author: jar@chromium.org + + Date: Mon Oct 5 17:58:51 2009 +0000 + + Revert further back to MBelshe's baseline forking TCMalloc + + This changes to decommitting in all paths through the + page_heap delete method (which adds spans to the free lists). + + r=mbelshe,jamesr + Review URL: http://codereview.chromium.org/255067 + + git-svn-id: svn://svn.chromium.org/chrome/trunk/src@28006 + 0039d316-1c4b-4281-b951-d872f2087c98 + + commit e94afbb913b95f512cb8745a2729c73f82b15ae7 + Author: jar@chromium.org + + Date: Thu Oct 1 00:25:41 2009 +0000 + + Rollback Scavenge implemetation and rely on existing functionality + to free + + This is a landing of a patch provided by antonm. See: + http://codereview.chromium.org/235022 + + Also included change to browser_about_handler.cc to fix build, + and I set + TCMALLOC_RELEASE_RATE to 1.0 on line 40 of page_heap.cc (I + think this + was an inadvertent rollback element). + + r=antonm + Review URL: http://codereview.chromium.org/257009 + + git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27692 + 0039d316-1c4b-4281-b951-d872f2087c98 + + commit c585892d2c42a47c95d06a684a6685156c545403 + Author: mbelshe@google.com + + Date: Wed Sep 2 17:33:23 2009 +0000 + + Landing for Anton Muhin's tcmalloc patch: + http://codereview.chromium.org/180021/show + + Restore decommitting in IncrementalScavenge and draft Scavenge + method to + be invoked periodically + to reduce amount of committed pages. + + BUG=none + TEST=none + + Review URL: http://codereview.chromium.org/187008 + + git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25188 + 0039d316-1c4b-4281-b951-d872f2087c98 + + commit 14239acc00731e94736ac62e80fc6b17c31ea131 + Author: mbelshe@google.com + + Date: Wed Aug 12 02:17:14 2009 +0000 + + Major changes to the Chrome allocator. + + Changes include: + * Fix tcmalloc to release memory. Implements the + TCMalloc_SystemCommit() + mechanism so that tcmalloc can implement SystemRelease() + and later + reuse that memory. + * Enable dynamic switching of allocators based on an environment + variable. + Users can now switch between tcmalloc, jemalloc, the default + windows + heap, and the windows low-fragmentation heap. + * Implements set_new_mode() across all allocators so that we + can be sure + that out-of-memory conditions are handled safely. + + BUG=18345 + TEST=none; plan to get all unit tests running through these + allocators. + + Review URL: http://codereview.chromium.org/165275 + + git-svn-id: svn://svn.chromium.org/chrome/trunk/src@23140 + 0039d316-1c4b-4281-b951-d872f2087c98 + +M src/page_heap.cc +M src/page_heap.h +M src/system-alloc.cc +M src/system-alloc.h +M src/windows/system-alloc.cc + +commit 7be2edfe7f09e7e8c123e958742815784a718880 +Author: Aliaksey Kandratsenka +Date: Sat Feb 22 12:14:11 2014 -0800 + + issue-525: only warn if --enable-frame-pointers are not given + + This fixes issue when frame pointers warning is given even if frame + pointers are enabled + +M configure.ac + +commit 7e24b6ca2aa2c15a24504c02fad09f47e1ece8b5 +Author: Aliaksey Kandratsenka +Date: Sun Feb 16 17:04:26 2014 -0800 + + added debugallocation check for offset_ corruption + + It was previously possible (although unlikely) for damaged offset_ + field + to lead FromRawPointer implementation into different MallocBlock. + + As is usual with any damage, it's best to catch errors at earliest + possible time. + +M src/debugallocation.cc + +commit 6dcd73f1eb5ce2cc44ab918c53cd42c472f44c52 +Author: Aliaksey Kandratsenka +Date: Sun Feb 16 16:59:43 2014 -0800 + + avoid crash in DebugMallocImplementation::GetOwnership + + It was possible that if GetOwnership is passed pointer to memory not + owned by tcmalloc, it would crash. Or incorrectly return + owned. I.e. due to indirection in FromRawPointer. + + New implementation prevents that, but introduces different bug + instead. New implementation incorrectly returns "not owned" for + memalign chunks with big alignment. But in can be argued that passing + pointer returned from different memalign implementation did not work + previously too. + +M src/debugallocation.cc + +commit 33280ffb71fc0e4eb75e455d53824c344d011e35 +Author: Aliaksey Kandratsenka +Date: Sun Feb 16 16:25:14 2014 -0800 + + removed unused "using" in malloc_extension_test.cc + +M src/tests/malloc_extension_test.cc + +commit 066e524d6e33e9e3364bb6819f98a02b347c14ef +Author: Aliaksey Kandratsenka +Date: Sun Feb 16 14:58:35 2014 -0800 + + eliminated useless BASE_XXX defines in debugallocation.cc + + And closed TODO entry for that. + +M src/debugallocation.cc + +commit a2375a1f360c0451ec2a2b852ea26a71fb731727 +Author: Aliaksey Kandratsenka +Date: Sun Feb 16 14:49:57 2014 -0800 + + issue-464: correctly handle realloc after memalign in debugalloc + + debug memalign is creating special header block to allow us to find + real allocated block. And previous implementation of data copying + wasn't taking that into account and was copying that "alignment + header" into newly allocated block. + +M src/debugallocation.cc +M src/tests/debugallocation_test.cc + +commit d31f522f0e1b0e87ee3d5941e331ba745a0f5c23 +Author: Riku Voipio +Date: Mon Feb 3 16:31:32 2014 +0200 + + Add aarch64 defines + + With atomic operations and system call support in place, enable + with __aarch64__ defines Aarch64 support in other files around + the google-perftools header files. After these, google-perftools + testsuite (make check) results: + + 8 of 46 tests failed. + + FAIL: sampling_test.sh + FAIL: heap-profiler_unittest.sh + FAIL: heap-checker_unittest.sh + FAIL: heap-checker-death_unittest.sh + FAIL: sampling_debug_test.sh + FAIL: heap-profiler_debug_unittest.sh + FAIL: heap-checker_debug_unittest.sh + FAIL: profiler_unittest.sh + + While it indicates that there is still work to do, This is still + better than the result I get on ARMv7: + + 12 of 46 tests failed. + +M src/base/basictypes.h +M src/base/cycleclock.h +M src/base/linuxthreads.h +M src/malloc_hook_mmap_linux.h + +commit 15b5e7a35c83ce5d38fa523f2c291a2ac30bb8ed +Author: Riku Voipio +Date: Tue Feb 4 11:09:47 2014 +0200 + + linux_syscall_support.h: add aarch64 support + + Aarch64 support for linux_syscall_support.h. Since Aarch64 is a brand + new architecture, none of the legacy system calls are neccesarily + available. Thus some changes were neccesary affect other architectures + as well: + + 1) use getdents64 where available and else getdents (for ppc64) + + 2) other legacy system calls, pipe, waitpid and open replaced + by pipe2, + wait4 and openat where available. + + 3) use fstatat if stat is not available. + + The aarch64 system call interface follows the Aarch64 calling + convention + (regs x0-x5 for arguments and x8 system call number - return in x0). + Clone implementation is adapted from glibc. + + v2: step back in getdents removal due to ppc64 + +M src/base/linux_syscall_support.h +M src/base/linuxthreads.cc + +commit b5e584dfdc22328f713488311707f502aa77ff5f +Author: Aliaksey Kandratsenka +Date: Sun Feb 16 19:41:37 2014 -0800 + + issue-525: warn user on lack of libunwind but don't fail + + Because we now have access to other backtrace capturing method(s) at + runtime. + +M configure.ac + +commit 90ba15d1f2f6704af96f62ce1e8c5f214697bab1 +Author: Aliaksey Kandratsenka +Date: Sat Feb 8 15:30:36 2014 -0800 + + issue-604: implement runtime-selectable stacktrace capturing + + We're now building all supported stacktrace capturing methods. And + there's now a way to select at runtime which method is used. + +M Makefile.am +M configure.ac +M src/stacktrace.cc +M src/stacktrace_arm-inl.h +D src/stacktrace_config.h +M src/stacktrace_generic-inl.h +C055 src/stacktrace.cc src/stacktrace_impl_setup-inl.h +M src/stacktrace_instrument-inl.h +M src/stacktrace_libunwind-inl.h +M src/stacktrace_powerpc-inl.h +M src/stacktrace_win32-inl.h +M src/stacktrace_x86-inl.h + +commit 33f6781d64af88ea23698a084188d8c2ab94ecb1 +Author: Aliaksey Kandratsenka +Date: Sun Feb 16 18:47:04 2014 -0800 + + issue-605: avoid compilation errors if pthread_key_t is pointer + + Which seems to be the case on later cygwin + +M src/maybe_threads.cc + +commit 100f310088aa30d347cd5d07bbe9d9f80cf2c2d0 +Author: Aliaksey Kandratsenka +Date: Sun Feb 16 18:27:14 2014 -0800 + + unbreak make dist + +M Makefile.am + +commit a0ed9ace534372fbeee9bfefd6e26b922f0a1835 +Author: Wang YanQing +Date: Tue Feb 11 23:20:31 2014 +0800 + + debugallocation: fix bus error on mipsel-linux platform when enable + use_malloc_page_fence + + Fix below "BUS ERROR" issue: + + a0 hold start address of memory block allocated by DebugAllocate + in debugallocation.cc + + gdb) info registers + zero at v0 v1 a0 a1 + a2 a3 + R0 00000000 10008700 772f62a0 00084d40 766dcfef 7fb5f420 00000000 + 004b4dd8 + t0 t1 t2 t3 t4 t5 + t6 t7 + R8 7713c1a0 7712dbc0 ffffffff 777bc000 f0000000 00000001 00000000 + 00403d10 + s0 s1 s2 s3 s4 s5 + s6 s7 + R16 7fb5ff1c 00401b9c 77050020 7fb5fb18 00000000 004cb008 004ca748 + ffffffff + t8 t9 k0 k1 gp sp + s8 ra + R24 0000002f 771adcd4 00000000 00000000 771f4140 7fb5f408 7fb5f430 + 771add6c + sr lo hi bad cause pc + 00008713 0000e9fe 00000334 766dcff7 00800010 771adcfc + fsr fir + 00000004 00000000 + + (gdb) disassemble + Dump of assembler code for function _ZNSs4_Rep10_M_disposeERKSaIcE: + 0x771adcd4 <+0>: lui gp,0x4 + 0x771adcd8 <+4>: addiu gp,gp,25708 + 0x771adcdc <+8>: addu gp,gp,t9 + 0x771adce0 <+12>: lw v0,-28696(gp) + 0x771adce4 <+16>: beq a0,v0,0x771add38 + <_ZNSs4_Rep10_M_disposeERKSaIcE+100> + 0x771adce8 <+20>: nop + 0x771adcec <+24>: lw v0,-30356(gp) + 0x771adcf0 <+28>: beqzl v0,0x771add1c + <_ZNSs4_Rep10_M_disposeERKSaIcE+72> + 0x771adcf4 <+32>: lw v0,8(a0) + 0x771adcf8 <+36>: sync + => 0x771adcfc <+40>: ll v0,8(a0) + 0x771add00 <+44>: addiu at,v0,-1 + 0x771add04 <+48>: sc at,8(a0) + 0x771add08 <+52>: beqz at,0x771adcfc + <_ZNSs4_Rep10_M_disposeERKSaIcE+40> + 0x771add0c <+56>: nop + 0x771add10 <+60>: sync + 0x771add14 <+64>: b 0x771add24 + <_ZNSs4_Rep10_M_disposeERKSaIcE+80> + 0x771add18 <+68>: nop + 0x771add1c <+72>: addiu v1,v0,-1 + 0x771add20 <+76>: sw v1,8(a0) + 0x771add24 <+80>: bgtz v0,0x771add38 + <_ZNSs4_Rep10_M_disposeERKSaIcE+100> + 0x771add28 <+84>: nop + 0x771add2c <+88>: lw t9,-27072(gp) + 0x771add30 <+92>: jr t9 + 0x771add34 <+96>: nop + 0x771add38 <+100>: jr ra + 0x771add3c <+104>: nop + End of assembler dump. + + ll instruction manual: + Load Linked: + Loads the destination register with the contents of the word + that is at the memory location. This instruction implicity performs + a SYNC operation; all loads and stores to shared memory fetched prior + to the ll must access memory before the ll, and loads and stores to + shared memory fetched subsequent to the ll must access memory + after ll. + Load Linked and Store Conditional can be use to automatically update + memory locations. *This instruction is not valid in the mips1 + architectures. + The machine signals an address exception when the effective address + is not + divisible by four. + + Signed-off-by: Wang YanQing + Signed-off-by: Aliaksey Kandratsenka + [alk@tut.by: removed addition of unused #include] + +M src/debugallocation.cc + +commit 38bfc7a1c2f9ba718bcaa9b82fdcd9c429c8f85f +Author: Aliaksey Kandratsenka +Date: Sat Feb 8 14:10:11 2014 -0800 + + removed irrelevant comment + +M src/base/atomicops.h + +commit d03c467a3446088b229f0106d9f47fab6d7c52a4 +Author: Aliaksey Kandratsenka +Date: Sat Feb 8 13:35:16 2014 -0800 + + allow asking for gcc atomics on all platforms + + I.e. by doing ./configure CPPFLAGS=-DTCMALLOC_PREFER_GCC_ATOMICS + +M src/base/atomicops.h + +commit 6de1f38b687e3974d67adad45217f35a2c376049 +Author: Aliaksey Kandratsenka +Date: Sat Feb 8 13:43:04 2014 -0800 + + chmod -x configure.ac + + Because configure.ac is not really executable. And because it + interferes with tab completion of configure. + +M configure.ac + +commit e8fe990fa06e337a07059c55adc6ed2a0888de95 +Author: Riku Voipio +Date: Wed Jan 29 10:54:29 2014 +0200 + + implement atomics with gcc intrinsics + + Gcc after 4.7 provides atomic builtins[1]. Use these instead of adding + yet-another-assembly port for Aarch64 (64-bit ARM). This patch enables + succesfully building and running atomicops unittest on Aarch64. + + This patch enables using gcc builtins only when no assembly + implementation is provided. But as a quick check, atomicops_unittest + and rest of testsuite passes with atomicops-internals-gcc also + ARMv7 and X86_64 if the ifdef in atomicops is adjusted to prefer + the generic implementation. + + [1] http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html + +A src/base/atomicops-internals-gcc.h +M src/base/atomicops.h + +commit fa4b1c401da1ac381d4d72172825231b3d5518d9 +Author: Aliaksey Kandratsenka +Date: Sun Jan 19 22:37:44 2014 -0800 + + issue-599: fixing FreeBSD issue with sbrk + + Applied patch by yurivict. + + It was wrong assembly specifically for FreeBSD in sbrk overriding + code. + +M src/malloc_hook_mmap_freebsd.h + +commit 71a239e559c9ea2300ad0511f8de7077db5369c3 +Author: Aliaksey Kandratsenka +Date: Sun Jan 19 12:30:53 2014 -0800 + + check debug_malloc_implementation_space via COMPILE_ASSERT + + Because we can and because compile-time is always better. + +M src/debugallocation.cc + +commit 54568e32fc2321e0adef15fb1eab4e3a7f8ce5b0 +Author: Aliaksey Kandratsenka +Date: Sat Sep 21 18:14:00 2013 -0700 + + issue-565: don't pollute global namespace with thread lister API + + Instead those functions that are original taken from google's "base" + code now have prefix TCMalloc_. So that they don't conflict with other + google's libraries having same functions. + +M src/base/linuxthreads.cc +M src/base/thread_lister.c +M src/base/thread_lister.h +M src/gperftools/heap-checker.h +M src/heap-checker.cc +M src/memory_region_map.h + +commit 64bc1baa1f4723d73ba40cd730b72896bd45a810 +Author: Aliaksey Kandratsenka +Date: Sat May 18 17:11:58 2013 -0700 + + issue-{66,547}: use signal's ucontext when unwinding backtrace + + In issue-66 (and readme) it is pointed out that sometimes there are + some issues grabbing backtrace across signal handler boundary. + + This code attempts to fix it by grabbing backtrace from signal's + ucontext which clearly does not include signal handler boundary. + + We're using "feature" of libunwind that for some important platforms + libunwind's context is same as libc's ucontext_t which is given to us + as part of calling signal handler. + +M src/stacktrace_libunwind-inl.h + +commit 185bf3fcc36f8cb3839abdfe652f615bfb5306d1 +Author: Aliaksey Kandratsenka +Date: Sat Jan 11 12:46:02 2014 -0800 + + issue-581: avoid destructing DebugMallocImplementation + + Because otherwise destructor might be invoked well before other places + that might touch malloc extension instance. + + We're using placement new to initialize it and pass pointer to + MallocExtension::Register. Which ensures that destructor for it is + never run. + + Based on idea suggested by Andrew C. Morrow. + +M src/debugallocation.cc + +commit 48a0d131c1aa088c6075e9c4676ee430f81d8600 +Author: Aliaksey Kandratsenka +Date: Sat Jan 18 13:27:41 2014 -0800 + + issue-548: pass -fno-builtin to compiler for unittests + + Because clang doesn't understand -fno-builtin-malloc and friends. And + otherwise new/delete pairs get optimized away causing our tests that + expect hooks to be called to fail. + +M Makefile.am + +commit e98371540d63dde53ce4b7c772d78c1da6b59ea8 +Author: Aliaksey Kandratsenka +Date: Sat Jan 11 16:28:15 2014 -0800 + + eliminated gcc warning on __thread configure snippet + + gcc complained about lack of matching ' in code that force-fails + __thread detection on mingw + +M configure.ac + +commit 60b12171bc73117c0108b847bb310af095cd2778 +Author: xiaoyur347 +Date: Sat Jan 11 11:39:53 2014 +0800 + + fix GCC version detect for platforms other than X86/X64 + + [alk@tut.by: commented why we're disabling __thread not just for x86] + + Signed-off-by: Aliaksey Kandratsenka + +M configure.ac + +commit 764d304222f0c3057ab99babd06246016cbfa505 +Author: Aliaksey Kandratsenka +Date: Sun Jan 5 12:49:23 2014 -0800 + + don't re-define strtoq for VS2013 + + Which is part of previous change that wasn't correctly applied. + +M src/windows/port.h + +commit 1fc768864d506466b45f3f38474912bcb69bb772 +Author: Aliaksey Kandratsenka +Date: Sat Jan 4 18:28:36 2014 -0800 + + fix compilation under VS 2013 + + This is essentially a copy of corresponding chromium change from: + https://codereview.chromium.org/27017003 + +M src/windows/port.cc +M src/windows/port.h + +commit 4c274b9e20132230e62117ff583ebadd83081d90 +Author: Aliaksey Kandratsenka +Date: Sat Jan 4 18:28:36 2014 -0800 + + issue-592: handle recent mingw with C++11 threads + + Somehow it's c++ headers (like string) define pthread symbols without + even us asking for. That breaks old assumption that pthread symbols + are not available on windows. + + In order to fix that we detect this condition in configure.ac and + avoid defining windows versions of pthread symbols. + +M Makefile.am +M configure.ac +M src/windows/mingw.h +M src/windows/port.h + +commit 1458ee2239e0791567e69112931dc17eb0456cf8 +Author: Aliaksey Kandratsenka +Date: Sat Jan 4 13:54:24 2014 -0800 + + issue-596: removed unused AtomicIncrement operation + + There's no need for us to attempt to maintain Google's atomic ops code + in era of C++11. + +M src/base/atomicops-internals-arm-generic.h +M src/base/atomicops-internals-arm-v6plus.h +M src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-mips.h +M src/base/atomicops-internals-windows.h +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/tests/atomicops_unittest.cc + +commit 6630b24e27c6a62727fe73aaae21dcc7364b8fee +Author: Aliaksey Kandratsenka +Date: Sat Jan 4 13:07:35 2014 -0800 + + Removed unused AtomicPtr::CompareAndSwap + +M src/malloc_hook-inl.h +M src/malloc_hook.cc + +commit a15115271cc475509b17bf7fecbe1ac4966baf2e +Author: xiaoyur347 +Date: Fri Dec 20 09:41:08 2013 +0800 + + add "-finstrument-functions" support for MIPS uclibc. + should configure with CXXFLAGS="-finstrument-functions" + +M src/stacktrace_config.h +A src/stacktrace_instrument-inl.h + +commit 7c4888515ed93347d4793fc066cd6048e519a197 +Author: xiaoyur347 +Date: Fri Dec 20 09:02:49 2013 +0800 + + add uclibc support + * some variables defined with "char *" should be modified to + "const char*" + * For uclibc, glibc's "void malloc_stats(void)" should be "void + malloc_stats(FILE *)", is commented now. + * For uclibc, __sbrk is with attribute "hidden", so we use mmap + allocator for uclibc. + +M Makefile.am +M src/heap-checker.cc +M src/heap-profiler.cc +M src/libc_override_gcc_and_weak.h +M src/malloc_hook_mmap_linux.h +M src/memory_region_map.cc +M src/symbolize.cc +M src/system-alloc.cc + +commit 7bd193bca97d93b43ff6c824bc9f39227329312f +Author: Aliaksey Kandratsenka +Date: Sat Dec 14 12:03:02 2013 -0800 + + issue-586: detect main executable even if PIE is active + + Previous logic of detecting main program addresses is to assume that + main executable is at least addressess. With PIE (active by default on + Ubuntus) it doesn't work. + + In order to deal with that, we're attempting to find main executable + mapping in /proc/[pid]/maps. And old logic is preserved too just in + case. + +M src/pprof + +commit f8a2163b5131050765ea877e2573f4930e41f630 +Author: Aliaksey Kandratsenka +Date: Fri Dec 6 12:23:48 2013 -0800 + + Added AM_MAINTAINER_MODE to disable Makefile rebuild rules + + Some people might want to check-in unpacked result on make dist into + git. But because git doesn't preserve timestamps it would cause those + automatic "auto-retool" rules to trigger. Sometimes even causing build + breakage if system's autotools version don't match autotools version + used for make dist. + + Easiest way around this problem is to simply disable those unnecessary + "maintainer" rebuild rules. Especially given that source is always + freely available via git and therefore there should be no reason to + regenerate any of autotools products in 'make dist'-produced sources. + +M configure.ac + +commit 925bbaea76b91bd307634908cfd6902f99804544 +Author: Aliaksey Kandratsenka +Date: Sat Nov 16 14:01:38 2013 -0800 + + actually check result of CheckAddressBits + + Previously call to CheckAddressBits was made but nothing was done to + it's result. + + I've also make sure that actual size is used in checks and in bumping + up of TCMalloc_SystemTaken. + +M src/system-alloc.cc + +commit f216317a879e972ceafe77e61b2d66fd5f29922e +Author: Aliaksey Kandratsenka +Date: Sat Nov 16 15:05:45 2013 -0800 + + use AC_PROG_LIBTOOL to summon libtool + + So that older autotools of rhel 5 can be used + +M configure.ac + +commit d4f4c5a3104e30b14b1090241fb4d0fac6a0e357 +Author: Aliaksey Kandratsenka +Date: Sat Nov 16 14:00:19 2013 -0800 + + assert that ClassSize(0) is 0 instead >=0 + + Because it's return value being size_t cannot be negative + anyways. This fixes clang warning + +M src/common.cc + +commit 946203d60e50488a0b9e0fe003c13662873fa17d +Author: Aliaksey Kandratsenka +Date: Sat Nov 16 13:35:59 2013 -0800 + + assert key size in way that is clearer to gcc + + Both new and old asserts are checking same condition, however new + assert helps gcc see that out of bounds access is not possible in + root_ array. + +M src/pagemap.h + +commit bf2d7bd3f8c1fb6a0843e55e652e37f4ce0fae3d +Author: Aliaksey Kandratsenka +Date: Sat Nov 16 13:31:34 2013 -0800 + + fixed gcc warning + + We've recently changed old_signal_handler to by integer, so comparing + it with NULL is not good idea. + +M src/heap-profiler.cc + +commit dd5f979c5e6e7e3127835a659a5af89ac21597d5 +Author: Aliaksey Kandratsenka +Date: Sat Nov 16 13:31:08 2013 -0800 + + fixed -Wreorder warning in HeapProfileTable constructor + +M src/heap-profile-table.cc + +commit e4ea98f147a7602979f70be022de068b04e68060 +Author: Aliaksey Kandratsenka +Date: Sat Nov 9 14:19:16 2013 -0800 + + issue-585: fixed use of TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES + + In order to apply that, we're now doing explicit EnvToInt64 call as + part of initializing thread cache module. + +M src/thread_cache.cc + +commit e0102230ec7e8304155798bf7f03d6abcd5991ee +Author: Aliaksey Kandratsenka +Date: Sat Nov 16 12:03:35 2013 -0800 + + issue-588: Fix profiler_unittest.cc fork() + + As suggested by Hannes Weisbach. + + Call heap-profiler_unittest with the arguments 1 -2 (one iteration, 2 + fork()ed children). + + Instead of running the test, the program crashes with a std::bad_alloc + exception. This is caused by unconditionally passing the + number-of-threads-argument (0 or positive for threads, negative for + fork()s) in RunManyThreads(), thus allocating an array of pthread_t of + size -2. Depending on the sign of the thread number argument either + RunManyThreads or fork() should be called. + +M src/tests/profiler_unittest.cc + +commit 2bf83af65664a2badbaebdb722ad498e8b38548c +Author: Aliaksey Kandratsenka +Date: Sat Nov 16 11:35:32 2013 -0800 + + issue-587: fix typos in unit test scripts + + As proposed by Hannes Weisbach. + + The argument will be garbled because of a misplaced brace, for example + (heap-checker_unittest.sh): + + HEAP_CHECKER="${1:-$BINDIR}/heap-checker_unittest" + which should be: + HEAP_CHECKER="${1:-$BINDIR/heap-checker_unittest}" + + This unit test is used to check the binaries heap-checker_unittest and + heap-checker_debug_unittest. With the typo, the executable + heap-checker_debug_unittest is never actually run. + +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.sh +M src/tests/heap-profiler_unittest.sh +M src/tests/tcmalloc_unittest.sh + +commit b3b19269783cf1ed163bdb447cef9ca11b10851c +Author: Aliaksey Kandratsenka +Date: Sat Nov 9 12:28:55 2013 -0800 + + issue-584: added license note to files without explicit license + + As suggested at corresponding chromium issue discussion it's seemingly + sufficient to simply refer to project-wide LICENSE file. + +M src/tests/page_heap_test.cc +M src/tests/profile-handler_unittest.cc +M src/tests/raw_printer_test.cc +M src/tests/stack_trace_table_test.cc +M src/windows/config.h + +commit 7be35fb0d844c73f5c5301f62074294df5acbc5c +Author: Joonsoo Kim +Date: Thu Oct 10 14:26:47 2013 +0900 + + central_freelist: change fetch ordering + + When we fetch objects from the span for thread cache, we make + reverse-ordered list against original list on the span and suppy + this list + to thread cache. This algorithm has trouble with newly created span. + Newly created span has ascending ordered objects list. Since thread + cache + will get reverse-ordered list against it, user gets objects as + descending order. + + Following example shows what occurs in this algorithm. + + new span: object list: 1 -> 2 -> 3 -> 4 -> 5 -> ... + fetch N items: N -> N-1 -> N-2 -> ... -> 2 -> 1 -> NULL + thread cache: N -> N-1 -> N-2 -> ... -> 2 -> 1 -> NULL + + user's 1st malloc: N + user's 2nd malloc: N-1 + ... + user's Nth malloc: 1 + + In general, access memory with ascending order is better than + descending + order in terms of the performance. So this patch fix this situation. + + I run below program to measure performance effect. + + #define MALLOC_SIZE (512) + #define CACHE_SIZE (64) + #define TOUCH_SIZE (512 / CACHE_SIZE) + + array = malloc(sizeof(void *) * count); + + for (i = 0; i < 1; i++) { + for (j = 0; j < count; j++) { + x = malloc(MALLOC_SIZE); + array[j] = x; + } + } + + repeat = 10; + for (i = 0; i < repeat; i++) { + for (j = 0; j < count; j++) { + x = array[j]; + for (k = 0; k < TOUCH_SIZE; k++) { + *(x + (k * CACHE_SIZE)) = '1'; + } + } + } + + LD_PRELOAD=libtcmalloc_minimal.so perf stat -r 10 ./a.out 1000000 + + **** Before **** + Performance counter stats for './a.out 1000000' (10 runs): + + 2.715161299 seconds time elapsed + ( +- 0.07% ) + + **** After **** + Performance counter stats for './a.out 1000000' (10 runs): + + 2.259366428 seconds time elapsed + ( +- 0.08% ) + +M src/central_freelist.cc + +commit 7315b45c28564afdc2699beff934a3b45457edc6 +Author: Joonsoo Kim +Date: Thu Oct 10 11:46:12 2013 +0900 + + central_freelist: fetch objects as much as possible during each trial + + It is better to reduce function call if possible. If we try to fetch + objects from one span as much as possible during each function call, + number of function call would be reduced and this would help + performance. + +M src/central_freelist.cc +M src/central_freelist.h + +commit cc002ea19363e1ebbd7f3e809d116ab81a6862cd +Author: Joonsoo Kim +Date: Thu Oct 10 10:06:33 2013 +0900 + + skip unnecessary check during double-check SizeClass intergrity + + On initialization step, tcmalloc double-checks SizeClass integrity + with + all possible size values, 0 to kMaxSize. This causes tremendous + overhead + for short-lived applications. + + For example, consider following command. + 'find -exec grep something {} \;' + + Actual work of each grep is really small, but double-check requires + more work. To reduce this overhead, it is best to remove double-check + entirely. But we cannot be sure the integrity without double-checking, + so alternative is needed. + + This patch doesn't remove double-check, instead, try to skip + unnecessary + check based on ClassIndex() implementation. This reduce much + overhead and + the code has same coverage as previous double-check. Following is + the result of this patch. + + time LD_PRELOAD=libtcmalloc_minimal.so find ./ -exec grep "SOMETHING" + {} \; + + * Before + real 0m3.675s + user 0m1.000s + sys 0m0.640s + + * This patch + real 0m2.833s + user 0m0.056s + sys 0m0.220s + + * Remove double-check entirely + real 0m2.675s + user 0m0.072s + sys 0m0.184s + +M src/common.cc + +commit 3e9a33e8c708ccf3ec91e3a3b14e924f5f79e4a6 +Author: Aliaksey Kandratsenka +Date: Sat Oct 26 16:54:03 2013 -0700 + + issue-583: include pthread.h into static_var.cc + + Because we're doing pthread_atfork. + + Fix suggested by user named drussel. + +M src/static_vars.cc + +commit db0d5730ee059d72b895fbead5237f9cb5bbf98a +Author: Aliaksey Kandratsenka +Date: Sat Jun 22 13:48:11 2013 -0700 + + issue-579: ensure order between memory region and libunwind locks + + I.e. to prevent possible deadlock when this locks are taked by + different threads in different order. + + This particular problem was also reported as part of issue 66. + +M src/memory_region_map.cc + +commit 42ddc8d42c82ba6f5137c26b4e7f752b1a022831 +Author: Aliaksey Kandratsenka +Date: Sat Sep 21 19:03:52 2013 -0700 + + added emacs -*- mode lines for google coding style + +M src/addressmap-inl.h +M src/base/atomicops-internals-arm-generic.h +M src/base/atomicops-internals-arm-v6plus.h +M src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-mips.h +M src/base/atomicops-internals-windows.h +M src/base/atomicops-internals-x86.cc +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/base/basictypes.h +M src/base/commandlineflags.h +M src/base/cycleclock.h +M src/base/elf_mem_image.cc +M src/base/elf_mem_image.h +M src/base/elfcore.h +M src/base/googleinit.h +M src/base/linux_syscall_support.h +M src/base/linuxthreads.cc +M src/base/logging.cc +M src/base/logging.h +M src/base/low_level_alloc.cc +M src/base/low_level_alloc.h +M src/base/simple_mutex.h +M src/base/spinlock.cc +M src/base/spinlock.h +M src/base/spinlock_internal.cc +M src/base/spinlock_internal.h +M src/base/spinlock_linux-inl.h +M src/base/spinlock_posix-inl.h +M src/base/spinlock_win32-inl.h +M src/base/stl_allocator.h +M src/base/synchronization_profiling.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/thread_lister.h +M src/central_freelist.cc +M src/central_freelist.h +M src/common.cc +M src/common.h +M src/config_for_unittests.h +M src/debugallocation.cc +M src/getpc.h +M src/gperftools/heap-checker.h +M src/gperftools/heap-profiler.h +M src/gperftools/malloc_extension.h +M src/gperftools/malloc_hook.h +M src/gperftools/profiler.h +M src/gperftools/stacktrace.h +M src/gperftools/tcmalloc.h.in +M src/heap-checker-bcad.cc +M src/heap-checker.cc +M src/heap-profile-stats.h +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/libc_override.h +M src/libc_override_gcc_and_weak.h +M src/libc_override_glibc.h +M src/libc_override_osx.h +M src/libc_override_redefine.h +M src/linked_list.h +M src/malloc_extension.cc +M src/malloc_hook-inl.h +M src/malloc_hook.cc +M src/malloc_hook_mmap_freebsd.h +M src/malloc_hook_mmap_linux.h +M src/maybe_threads.cc +M src/maybe_threads.h +M src/memfs_malloc.cc +M src/memory_region_map.cc +M src/memory_region_map.h +M src/packed-cache-inl.h +M src/page_heap.cc +M src/page_heap.h +M src/page_heap_allocator.h +M src/pagemap.h +M src/profile-handler.cc +M src/profile-handler.h +M src/profiledata.cc +M src/profiledata.h +M src/profiler.cc +M src/raw_printer.cc +M src/raw_printer.h +M src/sampler.cc +M src/sampler.h +M src/span.cc +M src/span.h +M src/stack_trace_table.cc +M src/stack_trace_table.h +M src/stacktrace.cc +M src/stacktrace_arm-inl.h +M src/stacktrace_config.h +M src/stacktrace_generic-inl.h +M src/stacktrace_libunwind-inl.h +M src/stacktrace_powerpc-inl.h +M src/stacktrace_win32-inl.h +M src/stacktrace_x86-inl.h +M src/static_vars.cc +M src/static_vars.h +M src/symbolize.cc +M src/symbolize.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/tcmalloc.h +M src/tcmalloc_guard.h +M src/tests/addressmap_unittest.cc +M src/tests/atomicops_unittest.cc +M src/tests/current_allocated_bytes_test.cc +M src/tests/debugallocation_test.cc +M src/tests/frag_unittest.cc +M src/tests/getpc_test.cc +M src/tests/heap-checker_unittest.cc +M src/tests/heap-profiler_unittest.cc +M src/tests/low_level_alloc_unittest.cc +M src/tests/malloc_extension_c_test.c +M src/tests/malloc_extension_test.cc +M src/tests/malloc_hook_test.cc +M src/tests/markidle_unittest.cc +M src/tests/memalign_unittest.cc +M src/tests/packed-cache_test.cc +M src/tests/page_heap_test.cc +M src/tests/pagemap_unittest.cc +M src/tests/profile-handler_unittest.cc +M src/tests/profiledata_unittest.cc +M src/tests/profiler_unittest.cc +M src/tests/raw_printer_test.cc +M src/tests/realloc_unittest.cc +M src/tests/sampler_test.cc +M src/tests/sampling_test.cc +M src/tests/simple_compat_test.cc +M src/tests/stack_trace_table_test.cc +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_large_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/tests/testutil.cc +M src/tests/testutil.h +M src/tests/thread_dealloc_unittest.cc +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/auto_testing_hook.h +M src/windows/get_mangled_names.cc +M src/windows/gperftools/tcmalloc.h +M src/windows/gperftools/tcmalloc.h.in +M src/windows/mingw.h +M src/windows/mini_disassembler.cc +M src/windows/mini_disassembler.h +M src/windows/mini_disassembler_types.h +M src/windows/override_functions.cc +M src/windows/port.cc +M src/windows/port.h +M src/windows/preamble_patcher.cc +M src/windows/preamble_patcher.h +M src/windows/preamble_patcher_test.cc +M src/windows/preamble_patcher_with_stub.cc + +commit 799a22624c85e8749f8bed0bfa63282b03e75bdd +Author: Aliaksey Kandratsenka +Date: Sat Sep 28 19:32:20 2013 -0700 + + issue-575: do not use cycle count register on arm6 + + Apparently not all arm6 implementations implement it in this + particular way. + + This applies patch by Ben Avison. + +M src/base/cycleclock.h + +commit 2a2d6596f8c3d62b7ec444761f4edf0c85d10d92 +Author: Petr Hosek +Date: Fri Aug 23 23:58:47 2013 -0700 + + Adds system-alloc_unittest Visual Studio project + +M gperftools.sln +A vsprojects/system-alloc_unittest/system-alloc_unittest.vcproj + +commit 83aed118e009b92ea88645ef1f7b842a921612c5 +Author: Petr Hosek +Date: Fri Aug 23 13:53:35 2013 -0700 + + issue-567: Allows for overriding system allocator on Windows + + [alk@tut.by: minor changes to make mingw build work] + Signed-off-by: Aliaksey Kandratsenka + +M Makefile.am +M src/windows/port.cc +A src/windows/system-alloc.cc +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit 4ad16873a0a2d8861a0bfe8234d45e31cc70ee90 +Author: Petr Hosek +Date: Sat Aug 24 14:24:47 2013 -0700 + + Exports SysAllocator class to avoid .dll build errors + +M src/gperftools/malloc_extension.h + +commit 326990b5c30d249c3cf4688a88fc415b05494aca +Author: Aliaksey Kandratsenka +Date: Sat Sep 14 14:38:53 2013 -0700 + + issue-557: added support for dumping heap profile via signal + + This applies patch from Jean Lee. + + I've reformatted it to match surronding code style and changed + validation logic a bit. I.e. we're not checking signal for range + anymore given we're not sure what different platforms support, but + we're checking return value of signal() for SIG_ERR instead. + +M src/heap-profiler.cc + +commit cb65e49b83c84bc205203c12793f2dd00c4a7721 +Author: Aliaksey Kandratsenka +Date: Sat Sep 14 16:45:42 2013 -0700 + + issue-536: do not PrintStats if running under valgrind + + When we detect running under valgrind we do not initialize our own + malloc. So trying to print malloc stats when asked via MALLOCSTATS + cannot work. + + This does fix proposed by Philippe Waroquiers. In which we detect + running under valgrind prior to checking MALLOCSTATS environment + variable and refuse printing stats if we detect valgrind. + +M src/tcmalloc.cc + +commit 6979583592df555a369a2c975f5117a1f61911af +Author: Aliaksey Kandratsenka +Date: Mon Sep 9 07:59:25 2013 -0700 + + issue-564: added atomic ops support for mips{,64} + + This merges patch contributed by Jovan Zelincevic. + + And with that patch tcmalloc build with --enable-minimal (just malloc + replacement) appears to work (passes unit tests). + +M Makefile.am +A src/base/atomicops-internals-mips.h +M src/base/atomicops.h +M src/base/basictypes.h +M src/base/linux_syscall_support.h +M src/stacktrace_config.h + +commit 28dd85e2825af71138621a4417e6ab004631924d +Author: Aliaksey Kandratsenka +Date: Fri Aug 30 16:57:14 2013 +0300 + + implement pc from ucontext access for mips + +M m4/pc_from_ucontext.m4 + +commit 819a2b051f1dba9526f2338098fff6dd1700bdb6 +Author: Aliaksey Kandratsenka +Date: Thu Aug 29 19:00:31 2013 +0300 + + issue-413: disable __thread usage on OSX + + Because it was found that __thread variables access is compiled into + calls to tlv_get_addr which was found to call malloc. Because we + actually use thread-local storage from inside malloc it leads to stack + overflow. So we'll continue using pthreads API for that which is known + to work on OSX. + +M configure.ac + +commit 43809080931127037ce6e748f37a28ce7489387d +Author: Aliaksey Kandratsenka +Date: Thu Aug 29 18:51:48 2013 +0300 + + lowered autoconf requirement + + Autoconf 2.59 works. And most notably it will not affect our releases + which are all prepared with newer autoconf. + +M configure.ac + +commit 7a178d472737d988583bade3f0345201651cd43f +Author: Joon-Sung Um +Date: Tue Aug 27 22:16:18 2013 +0900 + + Update document for tcmalloc + + Update tcmalloc.html for new parameters. + + * kMaxSize = 256k + * kNumClasses = 88 + * kPageShift = 13 + + Signed-off-by: Aliaksey Kandratsenka + +M doc/tcmalloc.html + +commit 313e08b5a1a951f710b0323b3ca4e1e8d869520e +Author: Aliaksey Kandratsenka +Date: Sun Aug 4 20:44:06 2013 +0300 + + issue-560: Revert "issue-481: ... + + ...Replaced test mechanism for distinct address spaces with a more + reliable mechanism" + + This reverts commit 5dd53ab6cbf9d98f2d60546835e84785a104da46 (svn + revision 167) + + With this commit rhel 6.2 fails heap-checker-death_unittest and + without it passes. + + Ticket refers to 2 things and both are invalid: + + * that ptrace PEEKDATA ignores data argument. I've checked kernel + source and found it to be wrong + + * something about distinct address spaces + + And in addition to all that original ticket admits that it doesn't fix + anything. + + It looks like, compared to original code that "fix" is not succesfully + wait-ing on parent's ptrace request. I.e. by adding some additional + diagnostics I'm seeing this sys_waitpid returning ECHILD. + +M src/base/linuxthreads.cc + +commit 6d00cbce92c5576b4bcf07a2b5634b4dcfa14f8a +Author: Aliaksey Kandratsenka +Date: Sat Aug 17 15:52:53 2013 +0300 + + issue-561: don't cast function pointer to void * + + Which gcc-3.4 (as shipped in rhel 4) doesn't like. + + Cast to void * was originally added to avoid issue on OSX which + doesn't have sighandler_t. + + In that place we only need to know if it's null or not. So casting to + intptr_t looks like simplest possible way to achieve that. + +M src/profiler.cc + +commit 7d8d522d737f6c55169264b35ebe0be1f9b23efd +Author: Aliaksey Kandratsenka +Date: Sat Aug 17 15:52:22 2013 +0300 + + add heap-profile-stats.h to dist .tar.gz + +M Makefile.am + +commit d76cfa6d6ca5944d6300765fcb9160e889423750 +Author: Aliaksey Kandratsenka +Date: Sun Aug 4 18:35:55 2013 +0300 + + issue-502: Count m(un)map for each stacktrace in MemoryRegionMap + + ..instead of HeapProfileTable + + This upstreams chromium commit reviewed at: + https://codereview.chromium.org/12388070 + + Original and upstreaming author is: Dai MIKURUBE + + This patch fixes a bug that gperftools(TCMalloc)'s mmap profiler + (HEAP_PROFILE_MMAP) doesn't hook some memory pages used by the + profiler itself. + + This problem has been lived in gperftools for a long time. + It is discussed in gperftools' issue 502. + https://code.google.com/p/gperftools/issues/detail?id=502 + + Some bugs in the mmap profiler were fixed by + https://code.google.com/p/gperftools/issues/detail?id=383, + but the patch in the issue 383 didn't fix the bug mentioned in + the issue 502. + + This change reverts the previous patch and http://crrev.com/132771 + at first. Then, it modifies MemoryRegionMap to count m(un)map + calls for each stacktrace in itself instead of merging the counts + for each stacktrace in HeapProfileTable. + + This change also cleans up heap-profiler, heap-profile-table and + deep-heap-profile. + + Chromium-BUG=https://code.google.com/p/chromium/issues/detail?id=181517 + Chromium-Committed: + https://src.chromium.org/viewvc/chrome?view=rev&revision=188176 + +M src/heap-checker.cc +A src/heap-profile-stats.h +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/memory_region_map.cc +M src/memory_region_map.h + +commit 89b163a0883d40a612331ed8565b8ab1219fdbd0 +Author: Aliaksey Kandratsenka +Date: Sun Aug 4 18:27:07 2013 +0300 + + added .gitignore + +A .gitignore + +commit 18fbc316eebea9db2d7ec41e161c0a3fbb09fa42 +Author: alkondratenko@gmail.com + +Date: Wed Jul 31 04:02:19 2013 +0000 + + Fix a C++11 error. + + This merges patch by Nico Weber. + + New clang versions complain in C++11 mode that: + + error: cannot initialize a variable of type 'void *' with an rvalue + of type 'uintptr_t' (aka 'unsigned long') + + This same change was done for the google-internal version of + tcmalloc too. + + Reviewed-at: https://codereview.appspot.com/12132043 + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@238 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/stack_trace_table.cc + +commit 674fcd94a8a0a3595f64e13762ba3a6529e09926 +Author: alkondratenko@gmail.com + +Date: Tue Jul 30 09:14:20 2013 +0000 + + bump version to 2.1 + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@236 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M NEWS +M configure.ac +M packages/deb/changelog +M src/windows/config.h +M src/windows/gperftools/tcmalloc.h + +commit 805a6601939edd9bca60a8911e56b217e477c75e +Author: alkondratenko@gmail.com + +Date: Tue Jul 30 08:30:45 2013 +0000 + + issue-559: don't setup fork handler in InitStaticVars + + Because on OSX it calls malloc which leads to deadlock. + + Given that we don't really need that fork handler _that_ early, it's + fine to change it to normal static initializer + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@235 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/static_vars.cc + +commit c583a5babb54aedf6ab6e7746fd976ef2469839d +Author: alkondratenko@gmail.com + +Date: Tue Jul 30 08:30:19 2013 +0000 + + issue-559: don't depend on sighandler_t + + Which is not available on OSX. + + I've also fixed style around this place. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@234 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/profiler.cc + +commit 1af20041bf5821167e69bf905596b2d45d1d94da +Author: alkondratenko@gmail.com + +Date: Tue Jul 30 08:29:46 2013 +0000 + + issue-559: AtomicWord xxx_AtomicExchange are all inline + + Otherwise OSX correctly complains about duplicate definitions + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@233 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops.h + +commit 7a9c4e075fe2572307cddd11bc2f5c7d6b3d29ee +Author: alkondratenko@gmail.com + +Date: Fri Jul 26 19:36:08 2013 +0000 + + issue-556: update windows PACKAGE_{VERSION,STRING} + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@232 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/config.h + +commit 11d46f0aac5ef941b74114412bda4747a349c60d +Author: alkondratenko@gmail.com + +Date: Fri Jul 26 19:35:38 2013 +0000 + + issue-556: dll-export getpagesize + + Because page_heap_test needs this. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@231 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/port.cc +M src/windows/port.h + +commit 6d4ad4428bb8f587d890fa5b7a76ba65dcf48dcb +Author: alkondratenko@gmail.com + +Date: Fri Jul 26 19:35:20 2013 +0000 + + issue-556: drop malloc limit at the end of page_heap_test + + Which otherwise causes somewhat weird stack overflow on release + windows builds. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@230 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tests/page_heap_test.cc + +commit be54c3f3ed192eabab9b075ec924d2479a956b9d +Author: alkondratenko@gmail.com + +Date: Fri Jul 26 19:34:54 2013 +0000 + + issue-556: dll-export TCMalloc_System{Alloc,Release} + + because page_heap_test is using this stuff + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@229 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/system-alloc.h +M src/windows/port.cc + +commit e3716145cbfa1247fa37dd627b2136a061944255 +Author: alkondratenko@gmail.com + +Date: Fri Jul 26 18:19:05 2013 +0000 + + issue-552: Fix page_heap_test for system with different page size + + This is patch by Adhemerval Zanella. + + PowerPC uses 64K page size instead of 4k for x86 and x86_64. It + makes the + page_heap_test fails because the following test: + + static bool HaveSystemRelease = + TCMalloc_SystemRelease(TCMalloc_SystemAlloc(kPageSize, NULL, + 0), kPageSize); + + will always fail if kPageSize is less than getpagesize() (the default + configuration). + + The following patch fixes it by trying to allocate/deallocate + an entire + page instead. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@228 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tests/page_heap_test.cc + +commit f45133e75c09ca7d5e86bda2db16e30c6fa348c0 +Author: alkondratenko@gmail.com + +Date: Fri Jul 26 18:04:03 2013 +0000 + + issue-553: Fix syscall wrapper for PowerPC + + This is patch by Adhemerval Zanella. + + * src/stacktrace_powerpc-inl.h: It is just a cleanup for the + stacktrace + functions for PowerPC. The idea is to simplify the code. + * src/tests/heap-checker_unittest.cc: Handles the PPC64 function + descriptor + correctly in malloc tracers. Different from other architecture, + for PPC64 + the address returned in function pointers are the ODP entry, not the + symbol address in .text segment. This leads the comparison bogus, + since + it will compare a ODP entry with a .text address. + * src/heap-checker.cc: Add support for PPC in ptrace. + * src/base/elfcore.h: Likewise. + * src/base/linuxthreads.cc: Fix the thread creation using the clone + wrapper. + * src/base/linux_syscall_support.h: Various fixes for PPC32 and PPC64: + fixes the kernel_stat[64] struct layout, and sys_clone and + sys_socket + implementation. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@227 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/elfcore.h +M src/base/linux_syscall_support.h +M src/base/linuxthreads.cc +M src/heap-checker.cc +M src/stacktrace_powerpc-inl.h +M src/tests/heap-checker_unittest.cc + +commit ee2bf097133b115e3da249e43507e02645e46e59 +Author: alkondratenko@gmail.com + +Date: Sat Jul 20 21:37:26 2013 +0000 + + updated NEWS and packages/ for 2.1rc + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@226 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M NEWS +M packages/deb/changelog +M packages/deb/control +M packages/deb/copyright +M packages/rpm/rpm.spec + +commit 60ab178aeb827378d78cae8f1c6f893b14deaaf0 +Author: alkondratenko@gmail.com + +Date: Sat Jul 20 21:37:01 2013 +0000 + + bump version number for 2.1rc + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@225 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M configure.ac +M src/windows/gperftools/tcmalloc.h + +commit 7c2aa2f7c2cf901c17b9b9215224f725e798d1f2 +Author: alkondratenko@gmail.com + +Date: Sat Jul 20 21:35:56 2013 +0000 + + issue-546: fixed return type of Release_AtomicExchange on arm6+ + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@224 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-arm-v6plus.h + +commit d8e12e94ea09eaf8b040c6887f75cdf832b5619b +Author: alkondratenko@gmail.com + +Date: Sat Jul 20 21:35:14 2013 +0000 + + issue-549: handle most recent mingw that has sleep and nanosleep + + I.e. we have to check their presence in configure and in case of their + presence we have to avoid re-defining then in window's port.h + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@223 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M configure.ac +M src/windows/port.h + +commit ac354636de8a4f11e4fde679b52e9f58fda0e079 +Author: alkondratenko@gmail.com + +Date: Sun Jul 14 04:19:02 2013 +0000 + + issue-550: remove config.h.in + + Which is autoconf product and thus is not needed in source repository + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@222 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +D src/config.h.in + +commit e54971d58641853a9515d9f0313645729eab113a +Author: alkondratenko@gmail.com + +Date: Sat Jul 6 21:54:34 2013 +0000 + + issue-534: fixed a number of gcc warnings + + This applies patch from Adhemerval Zanella. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@221 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/basictypes.h +M src/heap-profiler.cc +M src/profiler.cc +M src/tests/heap-checker_unittest.cc +M src/tests/page_heap_test.cc + +commit 7dd038d7c58c9de889e3fcc552161533ea1baab1 +Author: alkondratenko@gmail.com + +Date: Sat Jul 6 20:48:18 2013 +0000 + + issue-545: corrected README for CPUPROFILE_FREQUENCY variable + + Applied patch by Mikhail Veltishchev + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@220 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M README + +commit a833a146b7de93774f0a9428edc5eda410d9a7dc +Author: alkondratenko@gmail.com + +Date: Sat Jul 6 20:46:50 2013 +0000 + + issue-528: fixed spelling + + This simply applies patch by Lajos Veres + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@219 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M doc/heapprofile.html +M doc/pprof_remote_servers.html +M src/base/spinlock.cc +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/gperftools/profiler.h +M src/pprof +M src/stacktrace_x86-inl.h +M src/windows/patch_functions.cc +M src/windows/preamble_patcher.cc + +commit 205abf1e7cb860224cbf391c7f69a6192ccc5076 +Author: alkondratenko@gmail.com + +Date: Sun May 12 19:15:13 2013 +0000 + + issue-518: add support for x32 ABI to linux_syscall_support.h + + As pointed out in the ticket this is taken from chromium review system + here: https://codereview.chromium.org/13648012 + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@218 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/linux_syscall_support.h + +commit 376a3107aa06063d72132318ac5ad266466e4325 +Author: alkondratenko@gmail.com + +Date: Tue May 7 22:28:05 2013 +0000 + + issue-368: allocate enough bytes for large metadata allocations + + During issue-368 review it was correctly pointed out then in place + where I compare metadata allocation size to threshold I should pass + that size down to TCMalloc_SystemAlloc instead of threshold. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@217 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/common.cc + +commit 58d39a1b2190b9d0b719ee33f7bc5383a9b27462 +Author: alkondratenko@gmail.com + +Date: Tue May 7 22:23:37 2013 +0000 + + issue-368: added missing large_heap_fragmentation_unittest.cc + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@216 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +A src/tests/large_heap_fragmentation_unittest.cc + +commit c45bb7d6033952ea33bb181c1f96999317b535a1 +Author: alkondratenko@gmail.com + +Date: Tue May 7 19:22:45 2013 +0000 + + issue-511: fixed negative offset handling for conditional jumps + + While doing and testing issue-511 I've found one subtle bug which is + incorrect handling of short offsets. They are defined to be signed but + previous code used unsigned char for them which caused negative + offsets to look like larger positive offsets. Fix is trivial. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@215 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/preamble_patcher.cc + +commit 3567b1701aa55a6421aefa5f3de1ca5507cbdf79 +Author: alkondratenko@gmail.com + +Date: Tue May 7 19:15:35 2013 +0000 + + issue-511: recognise rex.w jmpq *(%rip) as iat jump + + Apparently Windows Server 2012 (and presumably windows 8) now has this + form of iat jump. Which is quite useless (rex.w is according to my + understanding is not needed at all) but because of rex.w our code to + recognize jumps like that didn't work. + + Fix is just skip this prefix. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@214 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/preamble_patcher.cc + +commit 7fcb5ac0696e7ef7f7e7e51c18745af25de7da96 +Author: alkondratenko@gmail.com + +Date: Tue May 7 19:13:29 2013 +0000 + + issue-511: implemented rel8 jump patching + + I've found that Visual Studio 2012 release 32-bit C runtime library + patching fails because array new has rel8 jmp which previous code + could not handle. + + Implementation is largely copied from conditional jumps handling code. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@213 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/preamble_patcher.cc +M src/windows/preamble_patcher.h +M src/windows/preamble_patcher_with_stub.cc + +commit 8cb4086a0aee539869bd087a85881788545b23d6 +Author: alkondratenko@gmail.com + +Date: Mon May 6 19:50:59 2013 +0000 + + issue-368: test that we don't fragment large spans too badly + + This adds unit test that does essentially same things as code to + reproduce bug in + https://code.google.com/p/gperftools/issues/detail?id=368 + + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@212 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am + +commit f25ac4421f9efb635b88105e9c0830293ce19f9d +Author: alkondratenko@gmail.com + +Date: Mon May 6 19:50:23 2013 +0000 + + issue-{368,443}: allocate metadata in big batches + + It uses same approach as PageHeapAllocator. Namely allocates big chunk + which is then used to satisfy smaller allocations. + + In issue-443 gradual heap grows causes old code that allocates + metadata in smaller pieces and thus more frequently to fragment the + heap. It's also causing most of 368 heap fragmentation too. + + New code allocates 8 megs of address space at once for metadata + allocations. Most OSes will allocate actual memory only when + corresponding pages are touched. Thus this change should not cause + increased memory usage. + + I've also made sure metadata is always properly aligned in case we + ever allocate something that breaks natural alignment. E.g. strings. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@211 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/common.cc + +commit 4fd762cead660d4661359ad507083ac4f4967ee4 +Author: alkondratenko@gmail.com + +Date: Mon May 6 19:49:48 2013 +0000 + + issue-368: unmap free spans and retry before growing heap + + Because unmapped spans are not coalesced with normal spans it's + possible that we indeed have a large enough free span, but we fail to + see that because we always consider unmapped and normal spans + separately. That behavior is more likely for larger spans. + + In order to protect programs that grow heap frequently and by small + amounts from much more frequent minor page faults, there's limit of + running that force pages unmap path once per 128 megs of heap growth. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@210 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/page_heap.cc + +commit 99fe9944de32046fd954399e60415fba7d03eeb0 +Author: alkondratenko@gmail.com + +Date: Mon Apr 1 05:32:22 2013 +0000 + + issue-510: remove duplicate arm #elif + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@209 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/basictypes.h + +commit 6354e2c8cdaaaeffdfe7d5b347b125394e2d55fa +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 19:24:49 2013 +0000 + + issue-506: fixed bogus unit test failure + + Looks like my version of GCC is aware that free(malloc(X)) is a + no-op. So it optimizes that away completely ignoring simple fact that + we're observing malloc hooks invocations. By adding check that malloc + succeeded we force gcc to actually preserve that malloc call. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@208 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tests/malloc_extension_c_test.c + +commit 7896dcb9db2375fcd1d8d19052985a12ad113ba9 +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 19:16:47 2013 +0000 + + issue-504: disable tls on mingw + + Which is known to fail. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@207 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M configure.ac + +commit 8bf4522aa53a7b612a865bc10716192f0f05314b +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 19:15:46 2013 +0000 + + issue-504: do not define HAVE_MMAP on mingw + + Because, clearly, windows doesn't have one + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@206 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M configure.ac + +commit 9c24d255cdd8dab7482d968acc69d493680233ce +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 19:15:23 2013 +0000 + + issue-504: add AM_LDFLAGS to all *_la targets + + Because automake will not automatically add AM_LDFLAGS if there's + per-target LDFLAGS. See their good info manual. + + This fixes .dll compilation of tcmalloc + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@205 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am + +commit a2275fc6b48b98d5265388bb8586faa7c8cc581f +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 19:14:18 2013 +0000 + + issue-504: don't try to typedef pid_t on mingw + + Because recent mingws (more then few years ago seemingly) do that + already. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@204 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/mingw.h +M src/windows/port.h + +commit f00977533de6fd27a2f796b2e8e9adb7fcd965e8 +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 19:13:53 2013 +0000 + + issue-504: use gcc inline assembly atomic ops on mingw + + Because those are well tested and can be trusted + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@203 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M src/base/atomicops.h + +commit 34cdd6821b637b124722687578aa119e8714266c +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 19:13:13 2013 +0000 + + issue-504: use lowercase windows includes for mingw x-compilation + + I.e. so that I can build tcmalloc.dll using comfortable environment of + my GNU/Linux box and without having to touch actual windows box or VM. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@202 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M src/base/sysinfo.h +M src/windows/patch_functions.cc + +commit 0971d80d0ef0c881dcf46453e576a7e289d86975 +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 18:35:16 2013 +0000 + + issue-503: updated svn:ignore to ignore generated files + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@201 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +commit 05b100d9d4ffeb1342eb5ecf50bd0d2339e626c5 +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 18:32:05 2013 +0000 + + issue-503: removed checked in configure and other auto* products + + So that it's easier to contribute and review contributions. + + People wishing to build gperftools from svn checkout should run + autogen.sh first which will create those files and then ./configure && + make as usual + + INSTALL file has updated instructions too. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@200 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL +D Makefile.in +D aclocal.m4 +M autogen.sh +D compile +D config.guess +D config.sub +D configure +M configure.ac +D depcomp +D install-sh +D ltmain.sh +D m4/libtool.m4 +D m4/ltoptions.m4 +D m4/ltsugar.m4 +D m4/ltversion.m4 +D m4/lt~obsolete.m4 +D missing +D mkinstalldirs + +commit dcf55b976f19a186ac04d60d95e03ed2795285c4 +Author: alkondratenko@gmail.com + +Date: Mon Mar 11 18:29:00 2013 +0000 + + issue-503: recover original INSTALL file + + That was accidently overwritten by autotools files update in r196 + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@199 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL + +commit 5037f687d1de80722f634e84763572caf2725f98 +Author: chappedm@gmail.com + +Date: Mon Mar 11 01:35:37 2013 +0000 + + issue-425: Fixed tcmalloc unittest crashes for windows builds + + Missing use of volatile was causing vs2010 to perform unwanted + optimization resulting in the crash. See issue for more details. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@198 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tests/tcmalloc_unittest.cc + +commit beb78cc05babf0a49d21aed0ec789f19fc0f2d28 +Author: chappedm@gmail.com + +Date: Mon Mar 11 00:23:03 2013 +0000 + + issue-493: Fix for building against ARM targets + + gperftools was failing to build for arm targets for the following + reasons: + 1. Some ARMv7 instructions used when the target is ARMv6 so those + fail to assemble + 2. The cache line length is undefined for ARM architectures + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@197 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-arm-v6plus.h +M src/base/basictypes.h + +commit bd3b3a7e9a67fac846cf574f5bfd241157bdfe3c +Author: chappedm@gmail.com + +Date: Sun Mar 10 20:17:21 2013 +0000 + + issue-496: Fixes an issue where tcmalloc might deadlock in a thread + calling fork + + tcmalloc contained a bug where some internal locks were left in a + undefined state + between fork, leaving the child process in a deadlock state. This + patch fixes the + issue by introducing stricter locking between the parent nd child + while forking. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@196 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL +M Makefile.in +M aclocal.m4 +M config.guess +M config.sub +M configure +M configure.ac +M depcomp +M install-sh +M missing +M mkinstalldirs +M src/central_freelist.h +M src/config.h.in +M src/static_vars.cc + +commit 560ca8650c8a9d2971420970f0ed5e17848150eb +Author: chappedm@gmail.com + +Date: Sun Mar 10 20:02:46 2013 +0000 + + issue-491: Significant performance improvement for spin lock + contention + + This patch fixes issues where spinlocks under contention were + failing to + wakeup waiters, sometimes resulting in blow ups from 13ns to as high + as 256ms. + Under heavy contention, applications were observed sleeping for + minutes at a + time giving the appearance of a hang. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@195 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/spinlock.h + +commit b591d53af951eac60683237204464ebfec2c3afa +Author: chappedm@gmail.com + +Date: Sun Mar 10 19:54:39 2013 +0000 + + issue-490: Added support for acquire/release atomic exchange + + The atomic ops API was missing support for all of the various + flavors of Acquire_AtomicExchange and Release_AtomicExchange + which have now been added. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@194 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-arm-generic.h +M src/base/atomicops-internals-arm-v6plus.h +M src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-windows.h +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/tests/atomicops_unittest.cc + +commit 687207b5fcfadc821a3d5b94f2ea112ca933e476 +Author: chappedm@gmail.com + +Date: Sun Mar 10 19:44:43 2013 +0000 + + issue-443: Increase the number of objects transferred between thread + cache and central free list + + This fix is a result of a performance degradation observed in + multi-threaded programs where large + amounts of memory (30GB) are consumed, released by a pool of threads + in a cyclic manner. This was + mainly due to the amount of time we were spending in the slow path + consolidating memory between + the thread cache and central free list. The default has been bumped + up to 32768 and is now also + controllable through the TCMALLOC_TRANSFER_NUM_OBJ environment + setting. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@193 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M src/common.cc +M src/common.h +A src/tests/tcmalloc_unittest.sh + +commit 19eff86f850e54683c8868316e362af8919df18a +Author: alkondratenko@gmail.com + +Date: Sat Mar 9 01:16:17 2013 +0000 + + actually made svn:ignore work + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@192 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +commit 177a896a8273ae73affc48a126fcf9a3ba91f502 +Author: alkondratenko@gmail.com + +Date: Sat Mar 9 01:06:58 2013 +0000 + + added proper svn:ignore + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@191 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +commit b96203b591f63d24cd2979241b18534d22358bca +Author: chappedm@gmail.com + +Date: Sat Dec 22 20:14:08 2012 +0000 + + issue-461: Fix to malloc_extension.h so that it builds with + -std=gnu++98 + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@190 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/gperftools/malloc_extension.h + +commit 84b983c8d43f43a3c7f71d45d51fc4adcc688cd9 +Author: chappedm@gmail.com + +Date: Sat Dec 22 20:06:47 2012 +0000 + + issue-465: Adding automagic support for __builtin_expect + + Previously __builtin_ expect was based on a macro check against + gcc version. + Now we perform the check via AM which is a cleaner approach. There + are also + a number of code changes here to utilize LIKELY/UNLIKELY macros + based on + __builtin_expect to improve performance. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@189 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M configure +M configure.ac +M src/base/basictypes.h +M src/common.h +M src/config.h.in +M src/tcmalloc.cc + +commit a5dacccd6ae4cbfedb5263bfe0f325f03c7f0db8 +Author: chappedm@gmail.com + +Date: Sat Dec 22 19:06:35 2012 +0000 + + issue-466: Clarified stats output and comments for ExtractStats() + and GetThreadStats() + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@188 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tcmalloc.cc +M src/thread_cache.h + +commit 09d97533b09e473c0cdd269e8cf4e9a9737e49fa +Author: chappedm@gmail.com + +Date: Sat Dec 22 19:02:52 2012 +0000 + + issue-467: Fixed issue with allocation size being narrowed to 32-bit + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@187 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tcmalloc.cc + +commit 990889e6232ff3787f1d42d4091a0478ffb93988 +Author: chappedm@gmail.com + +Date: Sat Dec 22 18:53:18 2012 +0000 + + issue-470: Allows the default system allocator to be overidden + + This is useful when you run into cases where you need an allocator + before tcmalloc has been fully initialized. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@186 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/system-alloc.cc + +commit 3bf5f55d78769d2f8525626dd662457d2f014151 +Author: chappedm@gmail.com + +Date: Sat Dec 22 18:38:48 2012 +0000 + + issue-482: Adds support for CACHELINE_ALIGNED value for arm based + devices + + Hardcoded the cacheline size to 32 because this value is supported + by several + arm devices, however a better logic needs to be implemented at some + point to + handle more arm devices. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@185 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/basictypes.h + +commit 6856d1d1b2a807efd84dcafa10b865b6de22bc28 +Author: chappedm@gmail.com + +Date: Sat Dec 22 18:34:43 2012 +0000 + + issue-488: Performance improvement for initialization checks + + These came in from the Google-internal version of tcmalloc. They + saw some + decent speed improvements, both on microbenchmarks and big + programs. The + idea is to improve the speed of the "Is everything initialized?" type + of + code, that's at the start of all allocations and deallocations. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@184 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/static_vars.h +M src/tcmalloc.cc +M src/thread_cache.cc +M src/thread_cache.h + +commit ad5aa05838121d52ad1fde5463a796c3320fe067 +Author: chappedm@gmail.com + +Date: Sat Dec 22 18:25:58 2012 +0000 + + issue-483: Speed up accesses to ClassIndex() + + Making its return type unsigned can save a conversion from + signed to unsigned, and getting rid of the ternary operators + seems to help a little bit as well. Various gcc versions weren't + generating conditional moves for them as one would expect. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@183 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/basictypes.h +M src/common.h + +commit 8de78fd85b69bc569ac8fc9e75144e02f5cae851 +Author: chappedm@gmail.com + +Date: Mon Nov 5 04:45:01 2012 +0000 + + issue-452: Adds a control mechanism to the cpu profiler to be switched + on and off using a user defined signal. + + CPUPROFILESIGNAL - Takes a signal number between the value of 1 and + 64 inclusive which represents a signal + number as defined by signal.h. The signal must + not be in use by the program. Sending this + signal to the program turns profiling on and off + like a switch. By default the switch is + off when the program starts. Successive profiles + are suffixed with a monotonically increasing + number. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@182 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M doc/cpuprofile.html +M src/profiler.cc + +commit 46f06ca0db41d3f598750caefdaf3c6063969e64 +Author: chappedm@gmail.com + +Date: Sun Nov 4 23:08:17 2012 +0000 + + issue-451: Fixed incorrect assembly for 64-bit barrier load and + store on windows platforms. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@181 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-windows.h + +commit 5fe91d5623c2351ba4675db71822fc6be5e2cbce +Author: chappedm@gmail.com + +Date: Sun Nov 4 22:53:01 2012 +0000 + + issue-450: Move includes for struct mallinfo from tcmalloc.cc to + tcmalloc.h to fix compiler warnings from clang. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@180 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/gperftools/tcmalloc.h.in +M src/tcmalloc.cc + +commit 86a55316baf2a7c0718670fd7342b648e0ef4a87 +Author: chappedm@gmail.com + +Date: Sun Nov 4 19:12:42 2012 +0000 + + issue-449: Disables mmap check when cross compiling since it is + meaningless anyways + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@179 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M configure +M configure.ac + +commit 6f6c2bf68576e43491884364fc05c9ed752adb4f +Author: chappedm@gmail.com + +Date: Sun Nov 4 19:02:15 2012 +0000 + + issue-448: New environment setting that allows you to set an explicit + heap limit + + TCMALLOC_HEAP_LIMIT_MB - The maximum amount of heap memory that + tcmalloc can use. + TCMALLOC_DISABLE_MEMORY_RELEASE - emulate platform with no + MADV_DONTNEED support (generally for testing purposes). + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@178 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/page_heap.cc +M src/page_heap.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tests/page_heap_test.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/port.cc + +commit 644b1c6e355a0f5dd948ca482a575f49a4bd2032 +Author: chappedm@gmail.com + +Date: Sun Nov 4 18:30:05 2012 +0000 + + issue-445: Fix for wrong cmpx instruction in OSAtomicCompareAndSwap64 + for ppc64 + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@177 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-linuxppc.h + +commit e32bb2d9a76dc5ee42ee41a2ca2c6e5caece0150 +Author: chappedm@gmail.com + +Date: Sun Nov 4 18:24:46 2012 +0000 + + issue-444: Fix for invalid conversion build error in signal handler + code + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@176 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/linux_syscall_support.h + +commit abeaf46028c8dfab7e7867ee7a3a49ebe21cf129 +Author: chappedm@gmail.com + +Date: Sun Nov 4 18:15:11 2012 +0000 + + issue-430: Introduces 8-byte alignment support for tcmalloc + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@175 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/common.cc +M src/common.h +M src/tests/tcmalloc_unittest.cc + +commit baaf0188295582ca68df03f70baa13d96a88e2eb +Author: chappedm@gmail.com + +Date: Sun Nov 4 17:41:47 2012 +0000 + + issue-473: Fix for make install error regarding + src/windows/google/tcmalloc.h + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@174 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in + +commit 1363bc69550f43af693f6455118432988042a8dd +Author: chappedm@gmail.com + +Date: Sun Nov 4 17:21:00 2012 +0000 + + issue-475: Re-applying changes made originally for r150 and r151 + + - Used aclocal, autoupdate, autoconf, and automake to + correctly apply changes made to Makefile.am. Detailed + instructions on this procedure can be found here + http://inti.sourceforge.net/tutorial/libinti/autotoolsproject.html. + - Fixed a number of error/warning messages due to use of newer + aclocal, autoconf, and automake utilities. + - Directly and indirectly related to issue-385 and issue-480. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@173 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M aclocal.m4 +M configure +M configure.ac +M m4/libtool.m4 + +commit 1243295cdcc20f2f47df9bdc9b8bb50b69c085b0 +Author: chappedm@gmail.com + +Date: Sun Nov 4 15:59:08 2012 +0000 + + issue-475: Amend of r151 and r150 + + In revisions 151 and 150 an attempt was made to enable frame pointers + by default for i386. However, in the process of doing so a number of + files were inadvertently touched as a result of running autogen.sh. As + a result, I have needed to roll back these revisions so that I can + reattempt the change. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@172 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL +M Makefile.am +M Makefile.in +M aclocal.m4 +M config.guess +M config.sub +M configure +M configure.ac +M depcomp +M install-sh +M ltmain.sh +M m4/libtool.m4 +M m4/ltoptions.m4 +M m4/ltversion.m4 +M m4/lt~obsolete.m4 +M missing +M mkinstalldirs + +commit 5c17459c5e7b4133a2dec5ffe6a9237a114f5378 +Author: chappedm@gmail.com + +Date: Sat Nov 3 16:14:25 2012 +0000 + + issue-476: Amendment to r152:issue-437 to fix a build error due to + PR_SET_TRACER not being defined in older glibc releases. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@171 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/linuxthreads.cc + +commit 6287bbbbad8730712cfd1ee28ecc0648cbaa9f94 +Author: chappedm@gmail.com + +Date: Sat Nov 3 15:56:27 2012 +0000 + + issue-477: Fix clang compilation errors regarding format specifiers + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@170 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/sysinfo.cc +M src/debugallocation.cc +M src/getpc.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profiler.cc +M src/malloc_extension.cc +M src/memory_region_map.cc +M src/symbolize.cc +M src/tcmalloc.cc +M src/tests/markidle_unittest.cc +M src/tests/tcmalloc_unittest.cc + +commit 87699c97cc07b30fc2765415853ae685f7bc45f2 +Author: chappedm@gmail.com + +Date: Sat Nov 3 15:40:01 2012 +0000 + + issue-478: Added the heap profiler tunnable setting + HEAP_PROFILER_TIME_INTERVAL used to dump heap profiles on a specified + time interval. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@169 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M doc/heapprofile.html +M src/heap-profiler.cc + +commit 4eb6946d689bbaa74f8be78265f6d6ff9ae04ab2 +Author: chappedm@gmail.com + +Date: Sat Nov 3 15:27:58 2012 +0000 + + issue-479: Replaced sscanf usage while iterating proc maps entries + to fix a deadlock introduced by glibc-2.15. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@168 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/sysinfo.cc + +commit 5dd53ab6cbf9d98f2d60546835e84785a104da46 +Author: chappedm@gmail.com + +Date: Sat Nov 3 14:52:42 2012 +0000 + + issue-481: Replaced test mechanism for distinct address spaces with + a more reliable mechanism + + Rather than using sys_ptrace+PTRACE_PEEK_DATA to determine whether + address spaces are distinct, we now use sys_waitpid+__WCLONE. See + issue-481 for a more detailed rationale. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@167 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/linuxthreads.cc + +commit 6c436203522156699ef11c6792ed481e02cef366 +Author: chappedm@gmail.com + +Date: Sat Nov 3 14:36:33 2012 +0000 + + amend-r165: forgot to regenrate configure and Makefile.in + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@166 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.in +M configure + +commit c566266b10d2fc4e0c67fec25e2a45ebad803196 +Author: chappedm@gmail.com + +Date: Sat Nov 3 14:13:21 2012 +0000 + + issue-480: duplicate of issue-385 fixed in r150 however some of the + comments in the code + regarding frame pointers needed to be clarified. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@165 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M configure.ac + +commit 4f325fbcc9f0db17fbf108188a32b2c67bcd38e0 +Author: chappedm@gmail.com + +Date: Sun Oct 28 19:45:03 2012 +0000 + + issue-424: Updated heap profiler documentation that had + mispelling for the heap profiler mmap only environment setting + (HEAP_PROFILE_ONLY_MMAP) + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@164 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M doc/heapprofile.html + +commit a828c0a8ff59300fffce466cc617d40fa39dedea +Author: chappedm@gmail.com + +Date: Sun Oct 28 19:30:23 2012 +0000 + + issue-417: This commit removed the fatal error message printed along + with the pprof usage information when pprof is run with no arguments. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@163 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/pprof + +commit e5b095abdc2368111f53cedf376cd1505a2c7583 +Author: chappedm@gmail.com + +Date: Sun Oct 28 18:28:21 2012 +0000 + + issue-411: This commit adds additional logging to the cpu profiler + to warn when the profiler is run and no CPUPROFILE environment + setting can be found. It also adds a new environment variable + PERFTOOLS_UNITTEST to allow certain modules to take action when + running under the umbrella of a unit test. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@162 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/profiler.cc +M src/tests/profiler_unittest.sh + +commit 57c48e9b5ffdb0f177c07ea8420c4072e816e1a7 +Author: chappedm@gmail.com + +Date: Sun Oct 28 14:51:41 2012 +0000 + + issue-405: backed out original commit made in revision 147 due to + the fact that it didn't work as intended + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@161 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/heap-checker.cc + +commit 3e296c28c3c2b67df624d372b75650ae65c87b04 +Author: chappedm@gmail.com + +Date: Tue Sep 18 02:47:24 2012 +0000 + + issue-442: Fixes an issue encountered on PPC with undefined + conversions from 'base::subtle::Atomic64*' to 'const volatile + Atomic32*' + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@160 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/spinlock_internal.cc + +commit 1f59bb34d3ce03df51c8356dd44fcb0b15de4769 +Author: chappedm@gmail.com + +Date: Tue Sep 18 02:33:00 2012 +0000 + + Adding support for CPU frequencies for Linux on PowerPC + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@159 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/sysinfo.cc + +commit a2fec7c694ce992a3b7d3fe4205bb8710b017bab +Author: chappedm@gmail.com + +Date: Tue Sep 18 01:43:02 2012 +0000 + + issue-446: Fixes compatability issues in malloc_hook_test for PPC64 + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@158 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tests/malloc_hook_test.cc + +commit b05b6fc7655ba7fee8397da7013db007f0c47e30 +Author: chappedm@gmail.com + +Date: Tue Sep 18 01:27:34 2012 +0000 + + issue-458: Optimizes malloc hooks for weakly consistent memory + architectures + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@157 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/malloc_hook-inl.h + +commit 00edf667f62e17a268f03c6aaef19946add75dcf +Author: chappedm@gmail.com + +Date: Tue Sep 18 01:18:15 2012 +0000 + + issue-456: Adds support for CACHELINE_ALIGNED values for PPC + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@156 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/basictypes.h + +commit 731d0932a081d521a36462df7dcbc45fa4221011 +Author: chappedm@gmail.com + +Date: Tue Sep 18 00:59:16 2012 +0000 + + issue-455: Adds another size for large pages in tcmalloc through + the new define TCMALLOC_LARGE_PAGES64K + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@155 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/common.h + +commit 771b6bcf689bd089b802ddcdb27a40b4fb4a8e3b +Author: chappedm@gmail.com + +Date: Tue Sep 18 00:52:13 2012 +0000 + + issue-457: Fixed an issue where the 'getpc' testcase was using the + wrong PPC64 preprocessor directive + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@154 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tests/getpc_test.cc + +commit 711232a1ef4997305a681287191de74f6597dabc +Author: chappedm@gmail.com + +Date: Tue Sep 18 00:42:23 2012 +0000 + + issue-453 Added support to get the timebase register value using + just one instruction and also adjusts the PPC32 code to the recent + GLIBC one that implements the same functionality + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@153 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/cycleclock.h + +commit fa0209f261c5e065d523bb1858f84fd91eb2f39a +Author: chappedm@gmail.com + +Date: Tue Sep 18 00:00:20 2012 +0000 + + issue-437 Fixed issues related to new glibc shipped with Ubuntu 10.10 + + 1. ptrace permissions were modifed to be a bit more strict which + required + us to programatically set the permissions while syncing up to + the profiling + thread. + + 2. Order of destructors registered with atexit changed which was + casuing us to + miss generating the backtrace when heap checker was finished. Seems + that we + initially fixed this for FreeBSD and now linux has changed their + behaviour + to be the same. We are now a bit stricter on the rules here + accross all + platforms. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@152 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/linuxthreads.cc +M src/heap-checker.cc + +commit cd723b43ff783a05321f0c0ba79a82494185b23c +Author: chappedm@gmail.com + +Date: Wed May 16 12:24:13 2012 +0000 + + issue-385: updates to automake to pick up the explicit setting of + the -fno-omit-frame-pointer for i386 + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@151 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL +M Makefile.am +M Makefile.in +M aclocal.m4 +M config.guess +M config.sub +M configure +M configure.ac +M depcomp +M install-sh +M ltmain.sh +M m4/libtool.m4 +M m4/ltoptions.m4 +M m4/ltversion.m4 +M m4/lt~obsolete.m4 +M missing +M mkinstalldirs + +commit 0c0382234d5812474b070b6eccdfd99c98490548 +Author: chappedm@gmail.com + +Date: Wed May 16 01:28:08 2012 +0000 + + issue-385: as of gcc 4.6 we now need to enable frame pointers for + i386 platforms since the default is to now omit frame pointers + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@150 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am + +commit bafd0f8b7cec4dd0b74a4a8e5456b96744640679 +Author: chappedm@gmail.com + +Date: Sat Apr 21 17:27:54 2012 +0000 + + Changing internal behaviour of tcmalloc to return an + allocated size of 0 when the target pointer is null (refer to + TCMallocImplementation::GetAllocatedSize). This change was reviewed + as https://codereview.appspot.com/5833050/. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@149 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tcmalloc.cc + +commit 9be2f8d802a19ab6e4b2abed3f7cd84780628d16 +Author: chappedm@gmail.com + +Date: Sat Apr 21 16:15:20 2012 +0000 + + Adding in further support for 64-bit NoBarrier_Load on windows + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@148 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-windows.h + +commit 68df7fa6057a29b3130d41a27592f74d58c2df57 +Author: chappedm@gmail.com + +Date: Sat Mar 3 19:45:49 2012 +0000 + + issue-405: Added a tunable to the heap checker that allows the heap + checker error exit code to be overridden. For larger projects this + allows certain heap checked programs that have intentional/known + leaks to be managed. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@147 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/heap-checker.cc + +commit 0a9d3f8af373c71e5fabdc8c01239c47df4743ed +Author: chappedm@gmail.com + +Date: Fri Mar 2 06:04:08 2012 +0000 + + issue-410: This set of changes exposes the central cache free list + size, transfer cache free list size, and the meta data overhead size + through the getNumericProperty() function. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@146 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/gperftools/malloc_extension.h +M src/tcmalloc.cc + +commit 1233f0f9101c3f4e85e04711c7223dc7f73ec4fb +Author: csilvers +Date: Tue Feb 21 03:02:43 2012 +0000 + + This file is in the tarball, but I forgot to put it in svn as well. + (It's tricky because it's auto-generated from tcmalloc.h.in at + tarball-making time.) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@145 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +A src/windows/gperftools/tcmalloc.h + +commit ce2891234584069f90e6e0a446e28bf7ca3e031d +Author: csilvers +Date: Sat Feb 4 00:10:11 2012 +0000 + + Url-typo in the latest NEWS message. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@144 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M NEWS + +commit 4e9432c5090d5b8354b0b57fca8b96b2efef37e3 +Author: csilvers +Date: Sat Feb 4 00:07:36 2012 +0000 + + Fri Feb 03 15:40:45 2012 Google + Inc. + + * gperftools: version 2.0 + * Renamed the project from google-perftools to gperftools + (csilvers) + * Renamed the .deb/.rpm packagse from google-perftools to + gperftools too + * Renamed include directory from google/ to gperftools/ + (csilvers) + * Changed the 'official' perftools email in setup.py/etc + * Renamed google-perftools.sln to gperftools.sln + * PORTING: Removed bash-isms & grep -q in + heap-checker-death_unittest.sh + * Changed copyright text to reflect Google's relinquished + ownership + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@142 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M AUTHORS +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M NEWS +M README +M README_windows.txt +M aclocal.m4 +M config.guess +M config.sub +M configure +M configure.ac +M depcomp +M doc/cpuprofile.html +M doc/designstyle.css +M doc/heap_checker.html +M doc/heapprofile.html +M doc/index.html +M doc/pprof.1 +M doc/pprof.see_also +M doc/pprof_remote_servers.html +R100 google-perftools.sln gperftools.sln +M install-sh +M missing +M mkinstalldirs +M packages/deb/changelog +M packages/deb/control +M packages/deb/copyright +R071 packages/deb/libgoogle-perftools-dev.dirs +packages/deb/libgperftools-dev.dirs +R079 packages/deb/libgoogle-perftools-dev.install +packages/deb/libgperftools-dev.install +R100 packages/deb/libgoogle-perftools0.dirs +packages/deb/libgperftools0.dirs +R100 packages/deb/libgoogle-perftools0.install +packages/deb/libgperftools0.install +R100 packages/deb/libgoogle-perftools0.manpages +packages/deb/libgperftools0.manpages +M packages/rpm/rpm.spec +M src/base/low_level_alloc.cc +M src/config.h.in +M src/debugallocation.cc +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/google/malloc_hook.h +M src/google/malloc_hook_c.h +M src/google/profiler.h +M src/google/stacktrace.h +A src/google/tcmalloc.h +C099 src/google/heap-checker.h src/gperftools/heap-checker.h +C100 src/google/heap-profiler.h src/gperftools/heap-profiler.h +C100 src/google/malloc_extension.h src/gperftools/malloc_extension.h +C100 src/google/malloc_extension_c.h +src/gperftools/malloc_extension_c.h +C099 src/google/malloc_hook.h src/gperftools/malloc_hook.h +C100 src/google/malloc_hook_c.h src/gperftools/malloc_hook_c.h +C100 src/google/profiler.h src/gperftools/profiler.h +C100 src/google/stacktrace.h src/gperftools/stacktrace.h +R098 src/google/tcmalloc.h.in src/gperftools/tcmalloc.h.in +M src/heap-checker-bcad.cc +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profiler.cc +M src/internal_logging.cc +M src/libc_override.h +M src/libc_override_gcc_and_weak.h +M src/libc_override_glibc.h +M src/libc_override_osx.h +M src/malloc_extension.cc +M src/malloc_hook-inl.h +M src/malloc_hook.cc +M src/memfs_malloc.cc +M src/memory_region_map.cc +M src/page_heap.cc +M src/page_heap.h +M src/pprof +M src/profiler.cc +M src/stacktrace.cc +M src/stacktrace_arm-inl.h +M src/stacktrace_generic-inl.h +M src/stacktrace_libunwind-inl.h +M src/stacktrace_powerpc-inl.h +M src/stacktrace_win32-inl.h +M src/stacktrace_x86-inl.h +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/current_allocated_bytes_test.cc +M src/tests/debugallocation_test.cc +M src/tests/frag_unittest.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +M src/tests/heap-profiler_unittest.cc +M src/tests/low_level_alloc_unittest.cc +M src/tests/malloc_extension_c_test.c +M src/tests/malloc_extension_test.cc +M src/tests/malloc_hook_test.cc +M src/tests/markidle_unittest.cc +M src/tests/profiler_unittest.cc +M src/tests/sampling_test.cc +C059 src/tests/current_allocated_bytes_test.cc +src/tests/simple_compat_test.cc +M src/tests/stacktrace_unittest.cc +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/tests/thread_dealloc_unittest.cc +A src/windows/auto_testing_hook.h +M src/windows/config.h +A src/windows/google/tcmalloc.h +R098 src/windows/google/tcmalloc.h.in +src/windows/gperftools/tcmalloc.h.in +M src/windows/patch_functions.cc +M +vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/malloc_extension_test/malloc_extension_test.vcproj +M vsprojects/malloc_hook_test/malloc_hook_test.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit e10b720797359e1855a5e4769424988b4e76c3e7 +Author: csilvers +Date: Sat Feb 4 00:06:48 2012 +0000 + + Last of the remnant empty directories that I don't know why they're + there. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@141 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +commit e55949bba69b7a6eede3468765e86c5ed000be52 +Author: csilvers +Date: Sat Feb 4 00:06:06 2012 +0000 + + This directory got renamed tmu-static a long time ago. Get rid of + this ancient remnant. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@140 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +commit 0f588815f979721346a6cb05a1cbd83d670b975a +Author: csilvers +Date: Sat Feb 4 00:05:39 2012 +0000 + + Apparently I'm not good at deleting files from svn after they're no + longer used anymore. Get rid of a few more that fall into this + category. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@139 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +D src/stacktrace_nacl-inl.h +D src/stacktrace_x86_64-inl.h + +commit 2b2016f6844a88b9448d445f90ad1c849a56ea23 +Author: csilvers +Date: Sat Feb 4 00:03:35 2012 +0000 + + I have no idea why I created this directory, but it's never been + used. Delete it. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@138 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +commit ace2da06732ee549b6d64c1f59b62181f5110230 +Author: csilvers +Date: Sat Feb 4 00:02:15 2012 +0000 + + This file has been obsolete for almost a year now; I just forgot to + delete it from svn. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@137 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +D src/base/atomicops-internals-arm-gcc.h + +commit 0afb078b34700859cef8d708463fc5c955e26c31 +Author: csilvers +Date: Tue Jan 31 19:11:26 2012 +0000 + + Tue Jan 31 10:43:50 2012 Google Inc. + + * google-perftools: version 1.10 release + * PORTING: Support for patching assembly on win + x86_64! (scott.fr...) + * PORTING: Work around atexit-execution-order bug on freebsd + (csilvers) + * PORTING: Patch _calloc_crt for windows (roger orr) + * PORTING: Add C++11 compatibility method for stl allocator + (jdennett) + * PORTING: use MADV_FREE, not MADV_DONTNEED, on freebsd + (csilvers) + * PORTING: Don't use SYS_open when not supported on solaris + (csilvers) + * PORTING: Do not assume uname() returns 0 on success + (csilvers) + * LSS: Improved ARM support in linux-syscall-support + (dougkwan) + * LSS: Get rid of unused syscalls in linux-syscall-support + (csilvers) + * LSS: Fix broken mmap wrapping for ppc (markus) + * LSS: Emit .cfi_adjust_cfa_offset when appropriate + (ppluzhnikov) + * LSS: Be more accurate in register use in __asm__ (markus) + * LSS: Fix __asm__ calls to compile under clang (chandlerc) + * LSS: Fix ARM inline assembly bug around r7 and swi (lcwu) + * No longer log when an allocator fails (csilvers) + * void* -> const void* for MallocExtension methods (llib) + * Improve HEAP_PROFILE_MMAP and fix bugs with it (dmikurube) + * Replace int-based abs with more correct fabs in a test + (pmurin) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@135 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M Makefile.in +M NEWS +M README_windows.txt +M configure +M configure.ac +M google-perftools.sln +M packages/deb/changelog +M packages/deb/copyright +M src/pprof +M src/system-alloc.cc +M src/tcmalloc.cc +M src/windows/config.h +M src/windows/mini_disassembler.h +M src/windows/patch_functions.cc +M src/windows/preamble_patcher.h +M src/windows/preamble_patcher_test.cc +M src/windows/shortproc.asm +A vsprojects/preamble_patcher_test/preamble_patcher_test.vcproj + +commit e0eaf5981eede6311e311ac5054489b85015c5d7 +Author: csilvers +Date: Sat Jan 28 00:13:43 2012 +0000 + + * PORTING: Support for patching assembly on win + x86_64! (scott.fr...) + * PORTING: Work around atexit-execution-order bug on freebsd + (csilvers) + * PORTING: Patch _calloc_crt for windows (roger orr) + * PORTING: Add C++11 compatibility method for stl allocator + (jdennett) + * PORTING: use MADV_FREE, not MADV_DONTNEED, on freebsd + (csilvers) + * PORTING: Don't use SYS_open when not supported on solaris + (csilvers) + * PORTING: Do not assume uname() returns 0 on success + (csilvers) + * LSS: Improved ARM support in linux-syscall-support + (dougkwan) + * LSS: Get rid of unused syscalls in linux-syscall-support + (csilvers) + * LSS: Fix broken mmap wrapping for ppc (markus) + * LSS: Emit .cfi_adjust_cfa_offset when appropriate + (ppluzhnikov) + * LSS: Be more accurate in register use in __asm__ (markus) + * LSS: Fix __asm__ calls to compile under clang (chandlerc) + * LSS: Fix ARM inline assembly bug around r7 and swi (lcwu) + * No longer log when an allocator fails (csilvers) + * void* -> const void* for MallocExtension methods (llib) + * Improve HEAP_PROFILE_MMAP and fix bugs with it (dmikurube) + * Replace int-based abs with more correct fabs in a test + (pmurin) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@134 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M NEWS +M configure +M configure.ac +M doc/cpuprofile.html +M src/base/atomicops-internals-arm-v6plus.h +M src/base/linux_syscall_support.h +M src/base/stl_allocator.h +M src/base/sysinfo.cc +M src/debugallocation.cc +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/malloc_extension.cc +M src/memory_region_map.cc +M src/memory_region_map.h +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/sampler_test.cc +M src/thread_cache.cc +M src/windows/ia32_opcode_map.cc +M src/windows/mini_disassembler.cc +M src/windows/mini_disassembler.h +M src/windows/mini_disassembler_types.h +M src/windows/patch_functions.cc +M src/windows/preamble_patcher.cc +M src/windows/preamble_patcher.h +A src/windows/preamble_patcher_test.cc +M src/windows/preamble_patcher_with_stub.cc +A src/windows/shortproc.asm + +commit 4fa02db374683d3c69c1b36158534c011513ed31 +Author: csilvers +Date: Sat Dec 24 01:00:32 2011 +0000 + + Ready to release perftools 1.9.1 :-/ + + Added the ARM stacktrace file to the tarball (for 'make dist') + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@132 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M NEWS +M configure +M configure.ac + +commit 2a7b3b88371c2f78ab31be202f384fd0ed466890 +Author: csilvers +Date: Fri Dec 23 00:45:49 2011 +0000 + + Thu Dec 22 16:22:45 2011 Google Inc. + + * google-perftools: version 1.9 release + * Lightweight check for double-frees (blount) + * BUGFIX: Fix pprof to exit properly if run with no args + (dagitses) + * Suggest ASan as a way to diagnose buggy code (ppluzhnikov) + * Get rid of unused CACHELINE_SIZE (csilvers) + * Replace atexit() calls with global dtors; helps freebsd + (csilvers) + * Disable heap-checker under AddressSanitizer (kcc) + * Fix bug in powerpc stacktracing (ppluzhnikov) + * PERF: Use exponential backoff waiting for spinlocks (m3b) + * Fix 64-bit nm on 32-bit binaries in pprof (csilvers) + * Add ProfileHandlerDisallowForever (rsc) + * BUGFIX: Shell escape when forking in pprof (csilvers) + * No longer combine overloaded functions in pprof (csilvers) + * Fix address-normalizing bug in pprof (csilvers) + * More consistently call abort() instead of exit() on failure + (csilvers) + * Allow NoGlobalLeaks to be safely called more than once + (csilvers) + * PORTING/BUGFIX: Fix ARM cycleclock to use volatile asm + (dougkwan) + * PORTING: 64-bit atomic ops for ARMv7 (dougkwan) + * PORTING: Implement stacktrace for ARM (dougkwan) + * PORTING: Fix malloc_hook_mmap_linux for ARM (dougkwan) + * PORTING: Update linux_syscall_support.h for ARM/etc + (evannier, sanek) + * PORTING: Fix freebsd to work on x86_64 (chapp...@gmail.com) + * PORTING: Added additional SYS_mmap fixes for FreeBSD + (chappedm) + * PORTING: Allow us to compile on OS X 10.6 and run on 10.5 + (raltherr) + * PORTING: Check for mingw compilers that *do* define timespec + * PORTING: Add "support" for MIPS cycletimer + * PORTING: Fix fallback cycle-timer to work with Now + (dougkwan) + * PERF: Move stack trace collecting out of the mutex (taylorc) + * PERF: Get the deallocation stack trace outside the mutex + (sean) + * Make PageHeap dynamically allocated for leak checks (maxim) + * BUGFIX: Fix probing of nm -f behavior in pprof (dpeng) + * BUGFIX: Fix a race with the CentralFreeList lock before main + (sanjay) + * Support /pprof/censusprofile url arguments (rajatjain) + * Change IgnoreObject to return its argument (nlewycky) + * Update malloc-hook files to support more CPUs + * BUGFIX: write our own strstr to avoid libc problems + (csilvers) + * Use simple callgrind compression facility in pprof + * Print an error message when we can't run pprof to symbolize + (csilvers) + * Die in configure when g++ is't installed (csilvers) + * DOC: Beef up the documentation a bit about using libunwind + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@130 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M NEWS +M configure +M configure.ac +M packages/deb/changelog +M src/pprof +M src/windows/config.h + +commit 75f5a791bc1c0af0ddf43453c18f44723884f37e +Author: csilvers +Date: Fri Dec 23 00:45:14 2011 +0000 + + Add the magical incantations to get perftools to compile + cleanly under windows. The only non-trivial one is the #undef + of small, which I needed to compile under the latest cygwin -- + I ran g++ with -dD under cygwin and saw the '#define small + char' with my own eyes. I wouldn't have thought it... + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@129 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/internal_logging.h +M src/tcmalloc.cc +M src/windows/port.h + +commit 76131b04cf41a7f0fed99503f985847fc261b930 +Author: csilvers +Date: Fri Dec 23 00:44:53 2011 +0000 + + In my testing for a new release, I was noticing hangs on + cygwin, that went away when I turned off tls support. Since I + didn't use to have such problems, I am being conservative and + only turning off TLS for the particular version of cygwin I'm + testing on (as returned by uname()). + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@128 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/thread_cache.cc + +commit 3d30fbcc85021b267f7e3faf4c2280d70681920c +Author: csilvers +Date: Fri Dec 23 00:44:30 2011 +0000 + + We use mmx instructions now in perftools, so specify -xmms for + gcc on i386, where it's not on by default (it is for + gcc/x86_64, in my tests). This could potentially cause an + error for embedded systems, which can have i386 but no mms, + but the code wouldn't run properly on them anyway without + tweaks. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@127 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in + +commit f622d261e9a4331724d222cc2a41b517607c07d7 +Author: csilvers +Date: Tue Dec 20 18:43:38 2011 +0000 + + * Fix ARM cycleclock to use volatile asm (dougkwan) + * BUGFIX: Define BASE_HAS_ATOMIC64 for ARMv7 (dougkwan) + * Fix fallback cycle-timer to work with Now (dougkwan) + * Fix pprof to exit properly if run with no args (dagitses) + * Suggest ASan as a way to diagnose buggy code (ppluzhnikov) + * Get rid of unused CACHELINE_SIZE (csilvers) + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@126 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-arm-v6plus.h +M src/base/basictypes.h +M src/base/cycleclock.h +M src/debugallocation.cc +M src/malloc_hook_mmap_freebsd.h +M src/pprof +M src/windows/port.h + +commit 7da02003014644f73893df8530ee788dc0e626de +Author: chappedm@gmail.com + +Date: Wed Nov 30 02:54:35 2011 +0000 + + Added additional SYS_mmap fixes for FreeBSD due to syscall differences + between os versions (pulled from differences between FreeBSD6 and + FreeBSD8 mmap implementations) + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@125 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/malloc_hook_mmap_freebsd.h + +commit 8c8329390cd05a1bf1bf9613712521a9ee9fe260 +Author: csilvers +Date: Tue Nov 22 01:06:33 2011 +0000 + + * Eliminate some TSAN warnings (wilsonh) + * Better fix for freebsd on x86_64 (chapp...@gmail.com) + * Lightweight check for double-frees (blount) + * 64-bit atomic ops for ARMv7 (dougkwan) + * Remove dynamic annotations in some cases (dvyukov) + * Update linux_syscall_support.h for ARM, etc (evannier) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@124 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-arm-v6plus.h +M src/base/dynamic_annotations.c +M src/malloc_hook_mmap_freebsd.h +M src/profile-handler.cc +M src/thread_cache.h + +commit ca23f57679e2bd4e0390d6891aa765b7e9daca22 +Author: csilvers +Date: Thu Nov 17 00:11:42 2011 +0000 + + Fix bad #include paths. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@123 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/stacktrace.cc +M src/stacktrace_config.h + +commit e580d7888154fa7f95b3cef9e18f1ce69182212b +Author: csilvers +Date: Wed Nov 16 21:20:45 2011 +0000 + + Some linux_syscall_support.h improvements: + + * Fix socketcall functions (mec) + * Add ARM related defs and syscall asembly code (sanek) + * Use __arm__ instead of particular ARM arch macro (dougkwan) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@122 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/linux_syscall_support.h + +commit 6c3eaabd7306173b6b71b63797ebf050675046cf +Author: csilvers +Date: Wed Nov 16 05:21:54 2011 +0000 + + * Check for mingw compilers that *do* define timespec + * Replace atexit() calls with global dtors; helps freebsd + (csilvers) + * Fix malloc_hook_mmap_linux for ARM (dougkwan) + * Disalbe heap-checker under AddressSanitizer (kcc) + * Fix bug in powerpc stacktracing (ppluzhnikov) + * Use exponential backoff waiting for spinlocks (m3b) + * Fix 64-bit nm on 32-bit binaries in pprof (csilvers) + * Implement stacktrace for ARM (dougkwan) + * Add ProfileHandlerDisallowForever (rsc) + * Shell escape when forking in pprof (csilvers) + * Fix freebsd to work on x86_64 (chapp...@gmail.com) + * No longer combine overloaded functions in pprof (csilvers) + * Fix address-normalizing bug in pprof (csilvers) + * More consistently call abort() instead of exit() on failure + (csilvers) + * Allow NoGlobalLeaks to be safely called more than once + (csilvers) + * Beef up the documentation a bit about using libunwind + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@121 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL +M Makefile.am +M Makefile.in +M src/base/googleinit.h +M src/base/linux_syscall_support.h +M src/base/logging.h +M src/base/spinlock_internal.cc +M src/base/spinlock_linux-inl.h +M src/base/spinlock_posix-inl.h +M src/base/spinlock_win32-inl.h +M src/debugallocation.cc +M src/google/heap-checker.h +M src/heap-checker.cc +M src/malloc_hook_mmap_freebsd.h +M src/malloc_hook_mmap_linux.h +M src/pprof +M src/profile-handler.cc +M src/profile-handler.h +M src/stacktrace.cc +C059 src/stacktrace_powerpc-inl.h src/stacktrace_arm-inl.h +M src/stacktrace_config.h +M src/stacktrace_powerpc-inl.h +M src/stacktrace_x86-inl.h +M src/tests/heap-checker_unittest.cc +M src/tests/profile-handler_unittest.cc + +commit a6076edd177d59e67207753b799ce047a3663cb0 +Author: csilvers +Date: Tue Oct 18 20:57:45 2011 +0000 + + * Get the deallocation stack trace outside the lock (sean) + * Make PageHeap dynamically allocated for leak checks (maxim) + * BUGFIX: Fix probing of nm -f behavior in pprof (dpeng) + * PORTING: Add "support" for MIPS cycletimer + * BUGFIX: Fix a race with the CentralFreeList lock (sanjay) + * Allow us to compile on OS X 10.6 and run on 10.5 (raltherr) + * Support /pprof/censusprofile url arguments (rajatjain) + * Die in configure when g++ is't installed (csilvers) + * Change IgnoreObject to return its argument (nlewycky) + * Update malloc-hook files to support more CPUs + * Move stack trace collecting out of the mutex (taylorc) + * BUGFIX: write our own strstr to avoid libc problems + (csilvers) + * use simple callgrind compression facility in pprof + * print an error message when we can't run pprof to symbolize + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@120 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL +M Makefile.am +M Makefile.in +M configure +M configure.ac +M packages/rpm.sh +M src/base/basictypes.h +M src/base/cycleclock.h +M src/base/dynamic_annotations.h +M src/base/spinlock_internal.cc +M src/base/spinlock_linux-inl.h +M src/central_freelist.cc +M src/central_freelist.h +M src/common.cc +M src/common.h +M src/debugallocation.cc +M src/google/heap-checker.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/libc_override_osx.h +M src/malloc_hook.cc +M src/malloc_hook_mmap_linux.h +M src/memfs_malloc.cc +M src/page_heap.cc +M src/page_heap.h +M src/page_heap_allocator.h +M src/pprof +M src/profile-handler.cc +M src/profiler.cc +M src/span.cc +M src/span.h +M src/stack_trace_table.cc +M src/stacktrace.cc +M src/stacktrace_config.h +M src/static_vars.cc +M src/static_vars.h +M src/symbolize.cc +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/tcmalloc_unittest.cc +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/config.h + +commit c2eedce2a718913ed6264ac8e96571c233761e3b +Author: csilvers +Date: Fri Aug 26 21:08:59 2011 +0000 + + Fri Aug 26 13:29:25 2011 Google Inc. + + * google-perftools: version 1.8.3 release + * Added back the 'pthreads unsafe early' #define, needed + for FreeBSD + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@117 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M NEWS +M configure +M configure.ac +M src/config.h.in +M src/pprof +M src/windows/config.h + +commit f633b40ba5d3785c7e31fd9b575c5cf5e7c174f3 +Author: csilvers +Date: Thu Aug 11 22:06:22 2011 +0000 + + Thu Aug 11 15:01:47 2011 Google Inc. + + * google-perftools: version 1.8.2 release + * Fixed calculation of patchlevel, 'make check' should all + pass again + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@115 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M NEWS +M configure +M configure.ac +M src/pprof +M src/windows/config.h + +commit ffcdf7bf5a7e97428f7521b3c9e6d854e3a424a9 +Author: csilvers +Date: Thu Aug 11 22:05:09 2011 +0000 + + Fix #includes for ARM. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@114 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-arm-generic.h + +commit d2faf4646dc79486babfbd63cf5f658b917dd6ab +Author: csilvers +Date: Wed Jul 27 04:18:01 2011 +0000 + + Tue Jul 26 20:57:51 2011 Google Inc. + + * google-perftools: version 1.8 release + * Added an #include to fix compile breakage on latest gcc's + * Removed an extra , in the configure.ac script + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@112 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M NEWS +M configure +M configure.ac +M src/base/elf_mem_image.cc +M src/config.h.in +M src/pprof +M src/tests/tcmalloc_unittest.cc +M src/windows/config.h + +commit 100c38c1a225446c1bbeeaac117902d0fbebfefe +Author: csilvers +Date: Sat Jul 16 01:07:10 2011 +0000 + + Fri Jul 15 16:10:51 2011 Google Inc. + + * google-perftools: version 1.8 release + * PORTING: (Disabled) support for patching mmap on freebsd + (chapp...) + * PORTING: Support volatile __malloc_hook for glibc 2.14 + (csilvers) + * PORTING: Use _asm rdtsc and __rdtsc to get cycleclock in + windows (koda) + * PORTING: Fix fd vs. HANDLE compiler error on cygwin + (csilvers) + * PORTING: Do not test memalign or double-linking on OS X + (csilvers) + * PORTING: Actually enable TLS on windows (jontra) + * PORTING: Some work to compile under Native Client (krasin) + * PORTING: deal with pthread_once w/o -pthread on freebsd + (csilvers) + * Rearrange libc-overriding to make it easier to port + (csilvers) + * Display source locations in pprof disassembly (sanjay) + * BUGFIX: Actually initialize allocator name (mec) + * BUGFIX: Keep track of 'overhead' bytes in malloc reporting + (csilvers) + * Allow ignoring one object twice in the leak checker (glider) + * BUGFIX: top10 in pprof should print 10 lines, not 11 (rsc) + * Refactor vdso source files (tipp) + * Some documentation cleanups + * Document MAX_TOTAL_THREAD_CACHE_SIZE <= 1Gb (nsethi) + * Add MallocExtension::GetOwnership(ptr) (csilvers) + * BUGFIX: We were leaving out a needed $(top_srcdir) in + the Makefile + * PORTING: Support getting argv0 on OS X + * Add 'weblist' command to pprof: like 'list' but html + (sanjay) + * Improve source listing in pprof (sanjay) + * Cap cache sizes to reduce fragmentation (ruemmler) + * Improve performance by capping or increasing sizes + (ruemmler) + * Add M{,un}mapReplacmenet hooks into MallocHook (ribrdb) + * Refactored system allocator logic (gangren) + * Include cleanups (csilvers) + * Add TCMALLOC_SMALL_BUT_SLOW support (ruemmler) + * Clarify that tcmalloc stats are MiB (robinson) + * Remove support for non-tcmalloc debugallocation (blount) + * Add a new test: malloc_hook_test (csilvers) + * Change the configure script to be more crosstool-friendly + (mcgrathr) + * PORTING: leading-underscore changes to support win64 + (csilvers) + * Improve debugallocation tc_malloc_size (csilvers) + * Extend atomicops.h and cyceclock to use ARM V6+ optimized + code (sanek) + * Change malloc-hook to use a list-like structure (llib) + * Add flag to use MAP_PRIVATE in memfs_malloc (gangren) + * Windows support for pprof: nul and /usr/bin/file (csilvers) + * TESTING: add test on strdup to tcmalloc_test (csilvers) + * Augment heap-checker to deal with no-inode maps (csilvers) + * Count .dll/.dylib as shared libs in heap-checker (csilvers) + * Disable sys_futex for arm; it's not always reliable (sanek) + * PORTING: change lots of windows/port.h macros to functions + * BUGFIX: Generate correct version# in tcmalloc.h on windows + (csilvers) + * PORTING: Some casting to make solaris happier about types + (csilvers) + * TESTING: Disable debugallocation_test in 'minimal' mode + (csilvers) + * Rewrite debugallocation to be more modular (csilvers) + * Don't try to run the heap-checker under valgrind + (ppluzhnikov) + * BUGFIX: Make focused stat %'s relative, not absolute + (sanjay) + * BUGFIX: Don't use '//' comments in a C file (csilvers) + * Quiet new-gcc compiler warnings via -Wno-unused-result, + etc (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@110 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M Makefile.in +M NEWS +M README +M configure +M configure.ac +M doc/heapprofile.html +M doc/tcmalloc.html +M google-perftools.sln +M packages/deb/changelog +M src/base/atomicops-internals-windows.h +M src/base/atomicops.h +M src/base/cycleclock.h +C067 src/base/vdso_support.cc src/base/elf_mem_image.cc +A src/base/elf_mem_image.h +M src/base/low_level_alloc.cc +M src/base/spinlock_internal.cc +M src/base/vdso_support.cc +M src/base/vdso_support.h +M src/central_freelist.cc +M src/central_freelist.h +M src/common.cc +M src/common.h +M src/config.h.in +M src/debugallocation.cc +M src/google/heap-checker.h +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/google/malloc_hook.h +M src/heap-checker.cc +A src/libc_override.h +A src/libc_override_gcc_and_weak.h +A src/libc_override_glibc.h +A src/libc_override_osx.h +A src/libc_override_redefine.h +M src/malloc_extension.cc +M src/malloc_hook-inl.h +M src/malloc_hook.cc +A src/malloc_hook_mmap_freebsd.h +A src/malloc_hook_mmap_linux.h +M src/maybe_threads.cc +M src/memfs_malloc.cc +M src/memory_region_map.cc +M src/pprof +M src/profile-handler.cc +M src/profiler.cc +M src/stack_trace_table.h +M src/stacktrace.cc +M src/stacktrace_config.h +C053 src/stack_trace_table.h src/stacktrace_nacl-inl.h +M src/symbolize.cc +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/tests/debugallocation_test.cc +M src/tests/malloc_extension_c_test.c +M src/tests/malloc_extension_test.cc +M src/tests/malloc_hook_test.cc +M src/tests/profiler_unittest.cc +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/thread_cache.cc +M src/windows/config.h +M src/windows/google/tcmalloc.h.in +M src/windows/mingw.h +M src/windows/port.cc +M src/windows/port.h +M +vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcproj +M vsprojects/malloc_hook_test/malloc_hook_test.vcproj + +commit 8c7d2289d24f7a49f1f6f60d4a6eaee06fa04c60 +Author: csilvers +Date: Thu May 19 21:37:12 2011 +0000 + + * Fix typos in comment in profiler.h (nrhodes) + * #include fixes (jyrki) + * Add missing stddef.h for ptrdiff_t (mec) + * Add M{,un}mapReplacement hooks into MallocHook (ribrdb) + * Force big alloc in frag test (ruemmler) + * PERF: Increase the size class cache to 64K entries + (ruemmler) + * PERF: Increase the transfer cache by 16x (ruemmler) + * Use windows intrinsic to get the tsc (csilvers) + * Rename atomicops-internals-x86-msvc.h->windows.h (csilvers) + * Remove flaky DEATH test in malloc_hook_test (ppluzhnikov) + * Expose internal ReadStackTraces()/etc (lantran) + * Refactored system allocator logic (gangren) + * Include-what-you-use: cleanup tcmalloc #includes (csilvers) + * Don't set kAddressBits to 48 on 32-bit systems (csilvers) + * Add declaration for __rdtsc() for windows (koda) + * Don't revert to system alloc for expected errors (gangren) + * Add TCMALLOC_SMALL_BUT_SLOW support (ruemmler) + * Clarify that tcmalloc stats are MiB (robinson) + * Avoid setting cpuinfo_cycles_per_second to 0 (koda) + * Fix frag_unittest memory calculations (ruemmler) + * Remove support for non-tcmalloc debugallocation (blount) + * Add malloc_hook_test (llib) + * Change the objcopy -W test to be cross-friendly (mcgrathr) + * Export __tcmalloc in addition to _tcmalloc, for 86_64 + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@109 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL +M Makefile.am +M Makefile.in +M README +M README_windows.txt +M configure +M configure.ac +M google-perftools.sln +R096 src/base/atomicops-internals-x86-msvc.h +src/base/atomicops-internals-windows.h +M src/base/atomicops.h +M src/base/cycleclock.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/vdso_support.h +M src/central_freelist.cc +M src/central_freelist.h +M src/common.cc +M src/common.h +M src/config.h.in +M src/debugallocation.cc +M src/google/malloc_extension.h +M src/google/malloc_hook.h +M src/google/malloc_hook_c.h +M src/google/profiler.h +M src/google/tcmalloc.h.in +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/malloc_extension.cc +M src/malloc_hook-inl.h +M src/malloc_hook.cc +M src/memfs_malloc.cc +M src/memory_region_map.cc +M src/memory_region_map.h +M src/packed-cache-inl.h +M src/page_heap.cc +M src/page_heap.h +M src/page_heap_allocator.h +M src/pagemap.h +M src/sampler.cc +M src/sampler.h +M src/span.cc +M src/stack_trace_table.cc +M src/stack_trace_table.h +M src/static_vars.cc +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/tests/frag_unittest.cc +M src/tests/heap-checker_unittest.cc +A src/tests/malloc_hook_test.cc +M src/tests/memalign_unittest.cc +M src/tests/page_heap_test.cc +M src/tests/realloc_unittest.cc +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_large_unittest.cc +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/patch_functions.cc +M src/windows/port.cc +A vsprojects/malloc_hook_test/malloc_hook_test.vcproj + +commit 1d30e525ae6ac38ae381bb3118f7f47998af2942 +Author: csilvers +Date: Mon Mar 21 21:41:55 2011 +0000 + + * Improve debugallocation tc_malloc_size (csilvers) + * Extend atomicops.h to use ARM V6+ optimized code (sanek) + * Fix failure in Ranges test (ppluzhnikov) + * Change malloc-hook to use a list-like structure (llib) + * Update tcmalloc_regtest to use new malloc hooks (llib) + * PARTIAL: Keep track of 'overhead' bytes in the page cache + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@108 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M google-perftools.sln +A src/base/atomicops-internals-arm-generic.h +A src/base/atomicops-internals-arm-v6plus.h +M src/base/atomicops.h +M src/central_freelist.cc +M src/central_freelist.h +M src/google/malloc_hook.h +M src/google/malloc_hook_c.h +M src/heap-checker-bcad.cc +M src/heap-checker.cc +M src/heap-profiler.cc +M src/malloc_hook-inl.h +M src/malloc_hook.cc +M src/memory_region_map.cc +M src/memory_region_map.h +M src/tcmalloc.cc +A src/tests/current_allocated_bytes_test.cc +M src/tests/low_level_alloc_unittest.cc +M src/tests/malloc_extension_c_test.c +M src/tests/tcmalloc_unittest.cc +A +vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcproj + +commit 6fe07cd2c0527e18276cc79a57e2212a4b048746 +Author: csilvers +Date: Fri Mar 4 23:52:33 2011 +0000 + + * add a flag to use MAP_PRIVATE in memfs_malloc (gangren) + * pthread_self() is now safe to use early (ppluzhnikov) + * windows support for pprof: nul and /usr/bin/file (csilvers) + * fix tc_malloc_size for debugallocation (csilvers) + * add test on strdup to tcmalloc_test (csilvers) + * augment heap-checker to deal with no-inode maps (csilvers) + * Get rid of -Wno-unused-result: not all gcc's support it + (csilvers) + * /bin/true -> ':', which is faster and more portable + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@107 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M doc/tcmalloc.html +M src/debugallocation.cc +M src/heap-checker.cc +M src/memfs_malloc.cc +M src/pprof +M src/tcmalloc.cc +M src/tests/debugallocation_test.sh +M src/tests/memalign_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/thread_cache.cc + +commit 75584139e40c9d6c952d9c5339c52e5b58302fc8 +Author: csilvers +Date: Wed Mar 2 08:10:05 2011 +0000 + + * Enhance cycleclock on ARM v6 and above (sanek) + * Reduce object copying by using a reference (nherring) + * Modified lock annotations a bit (lcwu) + * Make debugallocation test a bit more forgiving (csilvers) + * Count .dll/.dylib as shared libs in heapchecker (csilvers) + * Disable sys_futex for arm (sanek) + * Don't use macros as much in windows/port.h (andrey.s...) + * Update #includes in case malloc.h is in weird places + (csilvers) + * Turn off some not-so-useful warnings in gcc 4 (csilvers) + * Do some casting to make solaris happier about types + (csilvers) + * Disable debugallocation_test in 'minimal' mode (csilvers) + * Rewrite debugallocation to be more modular (csilvers) + * We can't run the heap-checker under valgrind (ppluzhnikov) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@106 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M configure +M configure.ac +C055 src/raw_printer.cc src/base/arm_instruction_set_select.h +M src/base/cycleclock.h +M src/base/logging.h +M src/base/low_level_alloc.cc +M src/base/spinlock_linux-inl.h +M src/base/stl_allocator.h +M src/base/sysinfo.cc +M src/config.h.in +M src/debugallocation.cc +M src/google/tcmalloc.h.in +M src/heap-checker.cc +M src/internal_logging.cc +M src/raw_printer.cc +M src/tcmalloc.cc +M src/tests/debugallocation_test.cc +M src/tests/heap-checker_unittest.cc +M src/tests/memalign_unittest.cc +M src/tests/sampler_test.cc +M src/windows/config.h +R094 src/windows/google/tcmalloc.h src/windows/google/tcmalloc.h.in +M src/windows/port.cc +M src/windows/port.h + +commit c1abbfae802af5bf949c78e0bfdfd58d5c669a86 +Author: csilvers +Date: Sat Feb 19 00:11:09 2011 +0000 + + * avoid unused-var warnings with annotalysis (lcwu) + * make focused stats %'s relative, not absolute (sanjay) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@105 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/dynamic_annotations.h +M src/pprof + +commit dd3d9d969e9b889e96c2af497e436856fac1a2a7 +Author: csilvers +Date: Tue Feb 8 01:03:37 2011 +0000 + + * Fix tcmalloc_unittest on MSVC 10 in release mode (csilvers) + * Fix malloc_hook_c.h to compile with -ansi under gcc + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@104 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M NEWS +M src/google/malloc_hook_c.h +M src/tests/tcmalloc_unittest.cc + +commit 7375b4f3cb3ab4471d0016017be5e18ba5451c5f +Author: csilvers +Date: Sat Feb 5 00:19:37 2011 +0000 + + Fri Feb 04 15:54:31 2011 Google Inc. + + * google-perftools: version 1.7 release + * Reduce page map key size under x86_64 by 4.4MB (rus) + * Remove a flaky malloc-extension test (fdabek) + * Improve the performance of PageHeap::New (ond..., csilvers) + * Improve sampling_test with no-inline additions/etc (fdabek) + * 16-byte align debug allocs (jyasskin) + * Change FillProcSelfMaps to detect out-of-buffer-space + (csilvers) + * Document the need for sampling to use GetHeapSample + (csilvers) + * Try to read TSC frequency from tsc_freq_khs (adurbin) + * Do better at figuring out if tests are running under gdb + (ppluzhnikov) + * Improve spinlock contention performance (ruemmler) + * Better internal-function list for pprof's /contention + (ruemmler) + * Speed up GoogleOnce (m3b) + * Limit number of incoming/outgoing edges in pprof (sanjay) + * Add pprof --evince to go along with --gv (csilvers) + * Document the various ways to get heap-profiling information + (csilvers) + * Separate out synchronization profiling routines (ruemmler) + * Improve malloc-stats output to be more understandable + (csilvers) + * Add support for census profiler in pporf (nabeelmian) + * Document how pprof's /symbol must support GET requests + (csilvers) + * Improve acx_pthread.m4 (ssuomi, liujisi) + * Speed up pprof's ExtractSymbols (csilvers) + * Ignore some known-leaky (java) libraries in the heap checker + (davidyu) + * Make kHideMask use all 64 bits in tests (ppluzhnikov) + * Clean up pprof input-file handling (csilvers) + * BUGFIX: Don't crash if __environ is NULL (csilvers) + * BUGFIX: Fix totally broken debugallocation tests (csilvers) + * BUGFIX: Fix up fake_VDSO handling for unittest (ppluzhnikov) + * BUGFIX: Suppress all large allocs when report threshold is 0 + (lexie) + * BUGFIX: mmap2 on i386 takes an off_t, not off64_t (csilvers) + * PORTING: Add missing PERFTOOLS_DLL_DECL (csilvers) + * PORTING: Add stddef.h to make newer gcc's happy (csilvers) + * PORTING: Document some tricks for working under OS X + (csilvers) + * PORTING: Don't try to check valgrind for windows (csilvers) + * PORTING: Make array-size a var to compile under clang + (chandlerc) + * PORTING: No longer hook _aligned_malloc and _aligned_free + (csilvers) + * PORTING: Quiet some gcc warnings (csilvers) + * PORTING: Replace %PRIxPTR with %p to be more portable + (csilvers) + * PORTING: Support systems that capitalize /proc weirdly + (sanek) + * PORTING: Treat arm3 the same as arm5t in cycletimer + (csilvers) + * PORTING: Update windows logging to not allocate memory + (csilvers) + * PORTING: avoid double-patching newer windows DLLs + (roger.orr) + * PORTING: get dynamic_annotations.c to work on windows + (csilvers) + * Add pkg-config .pc files for the 5 libraries we produce + (csilvers) + * Added proper libtool versioning, so this lib will be 0.1.0 + (csilvers) + * Moved from autoconf 2.64 to 2.65 + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@102 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M Makefile.in +M NEWS +M README +M configure +M configure.ac +M m4/acx_pthread.m4 +M packages/deb/changelog +M src/base/cycleclock.h +M src/base/dynamic_annotations.c +M src/base/logging.h +M src/base/stl_allocator.h +M src/base/vdso_support.cc +M src/debugallocation.cc +M src/heap-checker.cc +M src/page_heap.cc +M src/page_heap.h +M src/pprof +M src/symbolize.h +M src/system-alloc.cc +M src/tests/debugallocation_test.cc +M src/tests/debugallocation_test.sh +M src/tests/malloc_extension_test.cc +M src/windows/port.h + +commit 3d77cbf7d569a7c7f0ce39a83f6c98da1718f1c4 +Author: csilvers +Date: Wed Jan 19 21:37:15 2011 +0000 + + * Make kHideMask use all 64 bits (ppluzhnikov) + * Add new IsDebuggerAttached method (ppluzhnikov) + * Document some tricks for maybe getting perftools to work + on OS X + * Redo file-top pprof commands (csilvers) + * Clean up pprof input-file handling (csilvers) + * 16-byte align debug allocs (jyasskin) + * Ignore JVM memory leakage in the heap checker (davidyu, + kkurimoto) + * Better internal-function list for contentionz (ruemmler) + * mmap2 on i386 takes an off_t, not an off64_t (csilvers) + * Fix up fake-VDSO handling for unittest (ppluzhnikov) + * Don't try to check valgrind for windows (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@101 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M README +M src/base/dynamic_annotations.c +M src/base/linux_syscall_support.h +M src/base/vdso_support.cc +M src/base/vdso_support.h +M src/debugallocation.cc +M src/heap-checker.cc +M src/malloc_hook.cc +M src/pprof +M src/tcmalloc.cc +M src/tests/heap-checker_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/config.h + +commit a0a2ff3b493481ff52e4b4deec2fcc494756b64a +Author: csilvers +Date: Wed Nov 24 00:33:20 2010 +0000 + + * PORTING: Add PERFTOOLS_DLL_DECL to malloc_hook_c.h + (csilvers) + * Add new .h files to Makefile (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@100 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M src/google/malloc_hook_c.h + +commit 3014cf142e5a2409c88ab4559f3274434ed9a29b +Author: csilvers +Date: Thu Nov 18 01:07:25 2010 +0000 + + * Suppress all large allocs when report threshold==0 + * Clarified meaning of various malloc stats + * Change from ATTRIBUTED_DEPRECATED to comments + * Make array-size a var to compile under clang + * Reduce page map key size under x86_64 by 4.4MB + * Added full qualification to MemoryBarrier + * Support systems that capitalize /proc weirdly + * Avoid gcc warning: exporting type in unnamed ns + * Add some dynamic annotations for gcc attributes + * Add support for census profiler in pprof + * Speed up pprof's ExtractSymbols + * Speed up GoogleOnce + * Add pkg-config (.pc) files + * Detect when __environ exists but is NULL + * Improve spinlock contention performance + * Add GetFreeListSizes + * Improve sampling_test, eg by adding no-inline + * Relax malloc_extension test-check for big pages + * Add proper library version number information + * Update from autoconf 2.64 to 2.65 + * Better document how to write a server that works with pprof + * Change FillProcSelfMaps to better handle out-of-space + * No longer hook _aligned_malloc/free in windows + * Handle function-forwarding in DLLs when patching (in + windows) + * Update .vcproj files that had wrong .cc files in them (!) + * get rid of unnecessary 'size < 0' + * fix comments a bit in sysinfo.cc + * another go at improving malloc-stats output + * fix comment typo in profiler.cc + * Add a few more thread annotations + * Try to read TSC frequency from 'tsc_freq_khz' + * Fix annotalysis/TSAN incompatibility + * Add pprof --evince to go along with --gv + * Document need for sampling to use GetHeapSample + * Fix flakiness in malloc_extension_test + * Separate out synchronization profiling routines + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@99 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M NEWS +M README +M aclocal.m4 +M configure +M configure.ac +M doc/pprof_remote_servers.html +M ltmain.sh +A m4/libtool.m4 +A m4/ltoptions.m4 +A m4/ltsugar.m4 +A m4/ltversion.m4 +A m4/lt~obsolete.m4 +M packages/deb/libgoogle-perftools-dev.dirs +M packages/deb/libgoogle-perftools-dev.install +M packages/rpm/rpm.spec +A src/base/atomicops-internals-arm-gcc.h +M src/base/basictypes.h +M src/base/dynamic_annotations.h +M src/base/logging.h +M src/base/low_level_alloc.cc +M src/base/spinlock.cc +M src/base/spinlock.h +A src/base/spinlock_internal.cc +C057 src/base/spinlock_win32-inl.h src/base/spinlock_internal.h +M src/base/spinlock_linux-inl.h +M src/base/spinlock_posix-inl.h +M src/base/spinlock_win32-inl.h +C067 src/base/spinlock_win32-inl.h +src/base/synchronization_profiling.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/thread_annotations.h +M src/base/vdso_support.cc +M src/common.h +M src/config.h.in +M src/debugallocation.cc +M src/google/heap-checker.h +M src/google/malloc_extension.h +M src/heap-profile-table.cc +M src/malloc_extension.cc +M src/memory_region_map.cc +M src/page_heap.cc +M src/page_heap.h +M src/pprof +M src/profiler.cc +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/debugallocation_test.cc +M src/tests/malloc_extension_test.cc +M src/tests/sampling_test.cc +M src/tests/sampling_test.sh +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/config.h +M src/windows/patch_functions.cc +M src/windows/port.cc +M src/windows/port.h +M vsprojects/addressmap_unittest/addressmap_unittest.vcproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/packed-cache_test/packed-cache_test.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit 682ff7da1205398376ee725b4ce3219c107b3f8a +Author: csilvers +Date: Thu Aug 5 20:36:47 2010 +0000 + + Thu Aug 5 12:48:03 PDT 2010 + + * google-perftools: version 1.6 release + * Add tc_malloc_usable_size for compatibility with glibc + (csilvers) + * Override malloc_usable_size with tc_malloc_usable_size + (csilvers) + * Default to no automatic heap sampling in tcmalloc (csilvers) + * Add -DTCMALLOC_LARGE_PAGES, a possibly faster tcmalloc (rus) + * Make some functions extern "C" to avoid false ODR warnings + (jyasskin) + * pprof: Add SVG-based output (rsc) + * pprof: Extend pprof --tools to allow per-tool configs + (csilvers) + * pprof: Improve support of 64-bit and big-endian profiles + (csilvers) + * pprof: Add interactive callgrind suport (weidenri...) + * pprof: Improve address->function mapping a bit (dpeng) + * Better detection of when we're running under valgrind + (csilvers) + * Better CPU-speed detection under valgrind (saito) + * Use, and recommend, -fno-builtin-malloc when compiling + (csilvers) + * Avoid false-sharing of memory between caches (bmaurer) + * BUGFIX: Fix heap sampling to use correct alloc size (bmauer) + * BUGFIX: Avoid gcc 4.0.x bug by making hook-clearing atomic + (csilvers) + * BUGFIX: Avoid gcc 4.5.x optimization bug (csilvers) + * BUGFIX: Work around deps-determining bug in libtool 1.5.26 + (csilvers) + * BUGFIX: Fixed test to use HAVE_PTHREAD, not HAVE_PTHREADS + (csilvers) + * BUGFIX: Fix tls callback behavior on windows when using wpo + (wtc) + * BUGFIX: properly align allocation sizes on Windows (antonm) + * BUGFIX: Fix prototypes for tcmalloc/debugalloc wrt throw() + (csilvers) + * DOC: Updated heap-checker doc to match reality better + (fischman) + * DOC: Document ProfilerFlush, ProfilerStartWithOptions + (csilvers) + * DOC: Update docs for heap-profiler functions (csilvers) + * DOC: Clean up documentation around tcmalloc.slack_bytes + (fikes) + * DOC: Renamed README.windows to README_windows.txt (csilvers) + * DOC: Update the NEWS file to be non-empty (csilvers) + * PORTING: Fix windows addr2line and nm with proper rc code + (csilvers) + * PORTING: Add CycleClock and atomicops support for arm 5 + (sanek) + * PORTING: Improve PC finding on cygwin and redhat 7 + (csilvers) + * PORTING: speed up function-patching under windows (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@97 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M NEWS +M README +M configure +M configure.ac +M doc/heap_checker.html +M m4/pc_from_ucontext.m4 +M packages/deb/changelog +M src/base/atomicops.h +M src/base/cycleclock.h +M src/base/dynamic_annotations.c +M src/base/dynamic_annotations.h +M src/base/sysinfo.cc +M src/base/thread_annotations.h +M src/base/vdso_support.h +M src/common.cc +M src/common.h +M src/google/malloc_extension.h +M src/google/tcmalloc.h.in +M src/heap-checker.cc +M src/heap-profiler.cc +M src/malloc_hook-inl.h +M src/malloc_hook.cc +M src/pprof +M src/stacktrace_x86-inl.h +M src/tcmalloc.cc +M src/tests/sampler_test.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/google/tcmalloc.h +M src/windows/port.cc +M vsprojects/addressmap_unittest/addressmap_unittest.vcproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit 488eee994d571da216ef105d4144282c801f0eee +Author: csilvers +Date: Wed Jun 23 16:42:31 2010 +0000 + + Oops, I thought I had done this last time, but maybe not. Submit the + name change. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@96 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +R092 README.windows README_windows.txt + +commit cb7393cbe2d737009001fd9d30dad568bac7a3d8 +Author: csilvers +Date: Mon Jun 21 15:59:56 2010 +0000 + + * Default to not sampling in tcmalloc (csilvers) + * Add -DTCMALLOC_LARGE_PAGES: better perf for some workloads + (rus) + * Extend pprof --tools to allow per-tool configs (csilvers) + * Have STL_Allocator pass on # bytes to free (richardfang) + * Add a header guard to config.h (csilvers) + * DOC: Clean up documentation around tcmalloc.slack_bytes + (fikes) + * DOC: Document ProfilerFlush, ProfilerStartWithOptions + (csilvers) + * PORTING: Work around a gcc 4.5.0 optimization bug (csilvers) + * PORTING: Use -fno-builtin-malloc and friends when compiling + tcmalloc + * PORTING: Define _WIN32_WINNT high enough for mingw + (csilvers) + * PORTING: Work around libtool bug getting deps wrong in + some cases + * Update README.windows to emphasize $IncludeDir more + (csilvers) + * Rename README.windows to README_windows.txt (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@95 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M README +M configure +M configure.ac +M doc/cpuprofile.html +M doc/tcmalloc.html +M src/base/dynamic_annotations.c +M src/base/dynamic_annotations.h +M src/base/stl_allocator.h +M src/central_freelist.cc +M src/common.h +M src/config.h.in +M src/google/malloc_extension.h +M src/heap-checker.cc +M src/internal_logging.h +M src/linked_list.h +M src/memory_region_map.h +M src/page_heap.cc +M src/page_heap.h +M src/pprof +M src/sampler.cc +M src/span.h +M src/tcmalloc.cc +M src/tests/frag_unittest.cc +M src/tests/page_heap_test.cc +M src/tests/testutil.cc +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/config.h +M src/windows/mingw.h + +commit d8c02761689ba909f474b85618f99ac6dfc9a168 +Author: csilvers +Date: Fri May 7 21:53:24 2010 +0000 + + * Update docs for heap-profiler fns (csilvers) + * In pprof, accept URLs without ports but with http:// (rsc) + * Refactor sizeclass handling in tcmalloc (bmaurer) + * Always log failed calls to FindAllocDetails (mec) + * Clarify comments for ProfilerStart* (malcolmr) + * Add #include guards to stacktrace_win32-inl.h (glider) + * Add ANNOTATE_ENABLE_RACE_DETECTION(enable) (kcc) + * Make a contentful NEWS file (csilvers) + * Fix addr2line --help (which pprof relies on) for windows + (csilvers) + * Fixes a bug in tcmalloc's TLS callback on windows -static + (wtc) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@94 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M NEWS +M doc/heapprofile.html +M packages/deb/control +M packages/rpm/rpm.spec +M src/base/dynamic_annotations.c +M src/base/dynamic_annotations.h +M src/base/vdso_support.cc +M src/central_freelist.cc +M src/common.h +M src/google/profiler.h +M src/heap-checker.cc +M src/internal_logging.h +M src/page_heap.cc +M src/page_heap.h +M src/pprof +M src/span.h +M src/stacktrace_win32-inl.h +M src/tcmalloc.cc +M src/tests/page_heap_test.cc +M src/windows/addr2line-pdb.c +M src/windows/nm-pdb.c +M src/windows/port.cc + +commit b0fe220d503eb23830e622939c2e14f084392d1e +Author: csilvers +Date: Thu Apr 22 17:29:02 2010 +0000 + + * Fix pthread_once extern declarations (willchan) + * Add missing closing brace that resulted in compile failure + (willchan) + * Handle closed stdin/out/err properly when forking (glider) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@93 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/maybe_threads.cc +M src/profile-handler.cc +M src/symbolize.cc +M src/tcmalloc.cc + +commit 21c65ecb037d7d41dcd574c70cd7b7e9d5045462 +Author: csilvers +Date: Mon Apr 12 21:18:48 2010 +0000 + + * Speed up IsSymbolizedProfile by checking for NUL (csilvers) + * Fix heap sampling to use correct alloc size (bmaurer) + * Make pprof ignore tc_new{,array}_nothrow (csilvers) + * PORTING: Have IsHeapProfilerRunning return an int, for C + (csilvers) + * Avoid false-sharing of memory between caches (bmaurer) + * Fix some variable shadowing (rt) + * SVG-based ouptut in pprof; also, wget->curl (rsc) + * Allow arbitrary prefix before obvious handler (rsc) + * Advertise when using libunwind (ppluzhnikov) + + Also, the install file seems to have reverted back to the default at + some previous point in time (autotools will do that occasionally). + Change that back to have the perftools-specific text in there. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@92 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M INSTALL +M src/base/basictypes.h +M src/google/heap-profiler.h +M src/heap-checker.cc +M src/heap-profiler.cc +M src/page_heap_allocator.h +M src/pprof +M src/stacktrace_config.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/thread_cache.h + +commit 92beff88437b31f4a618640b88487e0f8dfb7017 +Author: csilvers +Date: Tue Mar 23 20:39:55 2010 +0000 + + * Add new (std::nothrow) to debugallocation (corrado) + * Add a flag to ingore unaligned-ptr leaks (archanakannan) + * PORTING: Add get-pc capabilities for a new OS (csilvers) + * Don't register malloc extension under valgrind (csilvers) + * Fix throw specs for our global operator new (chandlerc) + * PORTING: link to instructions on windows static overrides + (mbelshe) + * Fix prototype differences in debugalloc (chandlerc, + csilvers, wan) + * Change pprof to handle big-endian input files (csilvers) + * Properly align allocation sizes on Windows (antonm) + * Improve IsRunningOnValgrind, using valgrind.h (csilvers, + kcc) + * Improve the accuracy of system_alloc actual_size (csilvers) + * Add interactive callgrind support to pprof (weidenri...) + * Fix off-by-one problems when symbolizing in pprof (dpeng) + * Be more permissive in allowed library names, in pprof + (csilvers) + * PORTING: Fix pc_from_ucontext to handle cygwin and redhat7 + (csilvers) + * Fix stacktrace to avoid inlining (ppluzhnikov) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@91 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M README.windows +M configure +M configure.ac +M doc/heap_checker.html +M m4/pc_from_ucontext.m4 +A src/base/dynamic_annotations.c +D src/base/dynamic_annotations.cc +M src/base/dynamic_annotations.h +M src/base/low_level_alloc.cc +M src/config.h.in +M src/debugallocation.cc +M src/google/stacktrace.h +M src/google/tcmalloc.h.in +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/memory_region_map.cc +M src/pprof +M src/stacktrace.cc +M src/stacktrace_generic-inl.h +M src/stacktrace_libunwind-inl.h +M src/stacktrace_powerpc-inl.h +D src/stacktrace_with_context.cc +M src/stacktrace_x86-inl.h +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/debugallocation_test.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/profiler_unittest.cc +M src/tests/profiler_unittest.sh +M src/tests/tcmalloc_unittest.cc +A src/third_party/valgrind.h +M src/windows/google/tcmalloc.h +M src/windows/port.cc + +commit 23dd124970bc11636feaa240394063ba5889ca54 +Author: csilvers +Date: Thu Feb 11 01:32:42 2010 +0000 + + * Speed up patching by not patching modules that are already + loaded + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@88 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/config.h +M src/windows/patch_functions.cc + +commit 8f8a010cab7d3070069a31990cb0e269f03dceb0 +Author: csilvers +Date: Wed Jan 20 23:00:51 2010 +0000 + + Oops, I submitted the wrong version of patch_functions.cc with the + previous commit. This is really the one that goes with release 1.5. + . + ?\027[D + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@86 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/patch_functions.cc + +commit fef86cfeba8915e34575f09499e18b184d7254a9 +Author: csilvers +Date: Wed Jan 20 22:47:29 2010 +0000 + + * google-perftools: version 1.5 release + * Add tc_set_new_mode (willchan) + * Make memalign functions + realloc respect tc_set_new_mode + (willchan) + * Add ReleaseToSystem(num_bytes) (kash) + * Handle zero-length symbols a bit better in pprof (csilvers) + * Prefer __environ to /proc/self/environ in cpu profiler + (csilvers) + * Add HEAP_CHECK_MAX_LEAKS flag to control #leaks to report + (glider) + * Add two new numeric pageheap properties to MallocExtension + (fikes) + * Print alloc size when mmap fails (hakon) + * Add ITIMER_REAL support to cpu profiler (csilvers, + nabeelmian) + * Speed up symbolizer in heap-checker reporting (glider) + * Speed up futexes with FUTEX_PRIVATE_FLAG (m3b) + * Speed up tcmalloc but doing better span coalescing (sanjay) + * Better support for different wget's and addr2maps in pprof + (csilvres) + * Implement a nothrow version of delete and delete[] + (csilvers) + * BUGFIX: fix a race on module_libcs[i] in windows patching + (csilvers) + * BUGFIX: Fix debugallocation to call cpp_alloc for new + (willchan) + * BUGFIX: A simple bugfix for --raw mode (mrabkin) + * BUGFIX: Fix C shims to actually be valid C (csilvers) + * BUGFIX: Fix recursively-unmapped-region accounting + (ppluzhnikov) + * BUGFIX: better distinguish real and fake vdso (ppluzhnikov) + * WINDOWS: replace debugmodule with more reliable psai + (andrey) + * PORTING: Add .bundle as another shared library extension + (csilvers) + * PORTING: Fixed a typo bug in the ocnfigure PRIxx m4 macro + (csilvers) + * PORTING: Augment sysinfo to work on 64-bit OS X (csilvers) + * PORTING: Use sys/ucontext.h to fix compiing on OS X 10.6 + (csilvers) + * PORTING: Fix sysinfo libname reporting for solaris x86 + (jeffrey) + * PORTING: Use libunwind for i386 when using --omitfp + (ppluzhnikov) + + NOTE: This release uses an older version of + src/windows/patch_functions.cc + because I decided the latest optimizations were not well enough tested + for a release. I'll aim to get them into next release. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@84 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M autogen.sh +M configure +M configure.ac +M packages/deb/changelog +M src/pprof +M src/windows/patch_functions.cc + +commit 63b8d63beb7d771713774f9a5d57381cbd29bf19 +Author: csilvers +Date: Thu Jan 14 16:26:05 2010 +0000 + + * PORTING: Revised patch_functions to avoid deadlock + (csilvers, andrey) + * PORTING: Revised patch_functions to speed up .dll loads + (csilvers) + * PORTING: Build and run sampling_test for windows (csilvers) + * Correctly init tc structs even when libc isn't patched + (csilvers) + * Make low-level allocs async-signal-safe (saito) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@83 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M README.windows +M src/base/low_level_alloc.cc +M src/base/low_level_alloc.h +M src/google/malloc_hook.h +M src/malloc_hook.cc +M src/pprof +M src/stacktrace_x86-inl.h +M src/tcmalloc.cc +M src/tests/sampling_test.sh +M src/thread_cache.cc +M src/windows/patch_functions.cc +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit eeeacd5ec4fa36256091f45e5b3af81cee2a4d86 +Author: csilvers +Date: Wed Jan 6 00:34:23 2010 +0000 + + * PORTING: Fix a race condition in windows patching + * PORTING: Use Psapi instead of debugmodule to get windows + module info + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@82 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M README.windows +M google-perftools.sln +M src/page_heap.h +M src/windows/patch_functions.cc +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit 6e7479331c751bdfe04d272dbb1bbbe877f0e86a +Author: csilvers +Date: Tue Dec 15 01:41:30 2009 +0000 + + * Fix a memory leak with repeated Patch() calls on windows + (csilvers) + * Fix a bug when we re-Patch() a previously unpatched lib + (csilvers) + * Add .bundle as another .so extension in pprof (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@81 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/spinlock.h +M src/heap-checker.cc +M src/heap-profile-table.h +M src/memfs_malloc.cc +M src/memory_region_map.h +M src/packed-cache-inl.h +M src/pprof +M src/profile-handler.cc +M src/profiledata.h +M src/windows/patch_functions.cc +M src/windows/preamble_patcher.cc + +commit 1d981b6997f73e6d92b647d042cfe8649d4728c1 +Author: csilvers +Date: Wed Dec 2 21:42:10 2009 +0000 + + * Make memalign && posix_memalign respect tc_set_new_mode + (willchan) + * Fix windows patch functions to respect tc_set_new_mode + (willchan) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@80 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tcmalloc.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/patch_functions.cc + +commit a94d5f797412bac7b811bf8d69d9298fec54f5cc +Author: csilvers +Date: Wed Dec 2 18:15:13 2009 +0000 + + * Prefer __environ to /proc/self/environ (csilvers) + * Add HEAP_CHECK_MAX_LEAKS envvar (glider) + * BUGFIX: debugallocation now calls cpp_alloc for new + (willchan) + * BUGFIX: tc_set_new_mode() respected for realloc and calloc + (willchan) + * BUGFIX: fix opt-mode maybe-crash on debugallocation_test + (csilvers) + * Print alloc size when mmap fails (hakon) + * Add ITIMER_REAL support (csilvers, nabeelmian) + * BUGFIX: correctly report double-frees (csilvers) + * Export tc_set_new_mode() from the .h file (willchan) + * Restructure Symbolize to make it more efficient (glider) + * PORTING: Augment sysinfo to work on 64-bit OS X (csilvers) + * Add two numeric pageheap properties to MallocExtension + (fikes) + * PORTING: Use libunwind for i386 when using --omitfp + (ppluzhnikov) + * Add ReleaseToSystem(num_bytes) (kash) + * Provide correct library filenames under solaris (jeffrey) + * BUGFIX: simple fix in pprof --raw mode (mrabkin) + * PORTING: Prefer sys/ucontext.h to fix OS 10.6 builds + (csilvers) + * Improve support for inlined functions in pprof (sanjay) + * Update wget code to not use keepalive (mrabkin, csilvers) + * PORTING: correctly handle x86_64 machines that use fp's + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@79 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M configure +M configure.ac +M doc/cpuprofile.html +M doc/heap_checker.html +M m4/compiler_characteristics.m4 +M src/base/logging.h +M src/base/sysinfo.cc +M src/config.h.in +M src/debugallocation.cc +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/google/tcmalloc.h.in +M src/heap-profile-table.cc +M src/malloc_extension.cc +M src/memfs_malloc.cc +M src/pprof +M src/profile-handler.cc +M src/symbolize.cc +M src/symbolize.h +M src/tcmalloc.cc +M src/tests/atomicops_unittest.cc +M src/tests/debugallocation_test.cc +M src/tests/malloc_extension_test.cc +M src/tests/profile-handler_unittest.cc +M src/tests/profiler_unittest.sh +M src/tests/tcmalloc_unittest.cc +M src/windows/config.h +M src/windows/google/tcmalloc.h + +commit 5b80f01df1137337131b4c50ce97faaff9973e90 +Author: csilvers +Date: Tue Nov 10 16:24:57 2009 +0000 + + * Replace usleep() and poll() with nanosleep() (glider) + * Document problems with _recalloc (csilvers) + * Detect when x86_64 doesn't turn off frame pointers + (csilvers) + * Fix sysinfo.cc/etc to work with 64-bit os x (csilvers) + * BUGFIX: Use __TEXT instead of __DATA to store tcmalloc fns + (csilvers) + * Added two numeric pageheap properties to tcmalloc (fikes) + * Support for mallocranges stats visualization (sanjay) + * Use libunwind for i386, not just x86_64 (ppluzhnikov) + * Add ReleaseToSystem(num_bytes) (kash) + * Provide corect library filenames under solaris (jeffrey) + * BUGFIX: a simple bug in pprof --raw mode (mrabkin) + * Prfer sys/ucontext.h to ucontext.h, to fix OS X 10.6 + (csilvers) + * Improve supprot for inlined functions in pprof (sanjay) + * Document inaccuracies in profiling mmap calls (csilvers) + * Update wget code to not use keepalive (mrabkin, csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@78 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M README.windows +M configure +M configure.ac +M doc/heapprofile.html +M google-perftools.sln +M m4/pc_from_ucontext.m4 +M src/base/basictypes.h +M src/base/dynamic_annotations.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/debugallocation.cc +M src/google/heap-checker.h +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/heap-checker.cc +M src/malloc_extension.cc +M src/page_heap.cc +M src/page_heap.h +M src/pagemap.h +M src/pprof +M src/stacktrace_config.h +M src/symbolize.cc +M src/symbolize.h +M src/tcmalloc.cc +M src/tests/malloc_extension_c_test.c +A src/tests/page_heap_test.cc +M src/tests/pagemap_unittest.cc +M src/tests/profile-handler_unittest.cc +M src/tests/tcmalloc_unittest.cc +A vsprojects/page_heap_test/page_heap_test.vcproj + +commit 25eed16e1b042a80c9a3e83bbf7ed227d04fb45a +Author: csilvers +Date: Tue Oct 27 17:30:52 2009 +0000 + + * Fix Symbolize() to call pprof once, rather than once/symbol + (glider) + * Fix unsetting of hooks before forking, in debug mode (maxim) + * Add some documention for pmuprofile (aruns) + * Speed up futex with FUTEX_PRIVATE_FLAG (m3b) + * Fix os x 10.6: prefer sys/ucontext.h to ucontext.h + (csilvers) + * Fix C shims to be actually valid C: malloc_extension/etc + (csilvers) + * Fix a longtime memset bug (csilvers) + * Implement nothrow versions of delete (csilvers) + * Fix recursively-unmapped-region accounting (ppluzhnikov) + * Better distinguish between real and fake VDSO (ppluzhnikov) + * Modify span coalescing to improve performance (sanjay) + * WINDOWS: Remove unnecessary lock around VirtualAlloc + (mbelshe) + * Remove performance tests for ptmalloc2 (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@77 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M Makefile.am +M Makefile.in +M configure +M configure.ac +M doc/pprof_remote_servers.html +M src/base/spinlock_linux-inl.h +M src/base/vdso_support.cc +M src/config.h.in +M src/debugallocation.cc +M src/getpc.h +M src/google/malloc_extension_c.h +M src/google/tcmalloc.h.in +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/malloc_extension.cc +M src/memory_region_map.cc +M src/page_heap.cc +M src/page_heap.h +M src/pprof +M src/profiler.cc +M src/sampler.cc +M src/stacktrace_libunwind-inl.h +M src/stacktrace_x86-inl.h +M src/symbolize.cc +M src/symbolize.h +M src/tcmalloc.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +A src/tests/malloc_extension_c_test.c +D src/tests/ptmalloc/COPYRIGHT +D src/tests/ptmalloc/lran2.h +D src/tests/ptmalloc/malloc-machine.h +D src/tests/ptmalloc/t-test.h +D src/tests/ptmalloc/t-test1.c +D src/tests/ptmalloc/t-test2.c +D src/tests/ptmalloc/thread-m.h +D src/tests/ptmalloc/thread-st.h +M src/tests/tcmalloc_unittest.cc +M src/windows/config.h +M src/windows/google/tcmalloc.h +M src/windows/port.cc + +commit 19dfa9e3733155e57406fbd082273eb53cb2750e +Author: csilvers +Date: Fri Sep 11 18:42:32 2009 +0000 + + Thu Sep 10 13:51:15 2009 Google Inc. + + * google-perftools: version 1.4 release + * Add debugallocation library, to catch memory leaks, + stomping, etc + * Add --raw mode to allow for delayed processing of pprof + files + * Use less memory when reading CPU profiles + * New environment variables to control kernel-allocs (sbrk, + memfs, etc) + * Add MarkThreadBusy(): performance improvement + * Remove static thread-cache-size code; all is dynamic now + * Add new HiddenPointer class to heap checker + * BUGFIX: pvalloc(0) allocates now (found by new debugalloc + library) + * BUGFIX: valloc test (not implementation) no longer + overruns memory + * BUGFIX: GetHeapProfile no longer deadlocks + * BUGFIX: Support unmapping memory regions before main + * BUGFIX: Fix some malloc-stats formatting + * BUGFIX: Don't crash as often when freeing libc-allocated + memory + * BUGFIX: Deal better with incorrect PPROF_PATH when + symbolizing + * BUGFIX: weaken new/delete/etc in addition to malloc/free/etc + * BUGFIX: Fix return value of GetAllocatedSize + * PORTING: Fix mmap-#define problem on some 64-bit systems + * PORTING: Call ranlib again (some OS X versions need it) + * PORTING: Fix a leak when building with LLVM + * PORTING: Remove some unneeded bash-ishs from testing scripts + * WINDOWS: Support library unloading as well as loading + * WINDOWS/BUGFIX: Set page to 'xrw' instead of 'rw' when + patching + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@76 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M Makefile.in +M aclocal.m4 +M configure +M configure.ac +M doc/tcmalloc.html +M google-perftools.sln +M m4/install_prefix.m4 +A m4/pc_from_ucontext.m4 +M packages/deb/changelog +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-x86.cc +M src/base/atomicops-internals-x86.h +M src/base/basictypes.h +M src/base/dynamic_annotations.cc +M src/base/dynamic_annotations.h +M src/base/logging.h +M src/base/low_level_alloc.cc +M src/base/low_level_alloc.h +M src/base/simple_mutex.h +M src/base/spinlock.cc +M src/base/spinlock.h +A src/base/spinlock_linux-inl.h +A src/base/spinlock_posix-inl.h +A src/base/spinlock_win32-inl.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/vdso_support.cc +M src/base/vdso_support.h +M src/common.cc +M src/common.h +M src/config.h.in +A src/debugallocation.cc +M src/getpc.h +M src/google/heap-checker.h +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/google/tcmalloc.h.in +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profiler.cc +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/memfs_malloc.cc +M src/memory_region_map.cc +M src/packed-cache-inl.h +M src/page_heap.h +M src/pagemap.h +M src/pprof +M src/profiler.cc +M src/sampler.h +M src/stacktrace_win32-inl.h +M src/stacktrace_with_context.cc +M src/stacktrace_x86-inl.h +A src/symbolize.cc +C060 src/stacktrace_with_context.cc src/symbolize.h +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/addressmap_unittest.cc +A src/tests/debugallocation_test.cc +A src/tests/debugallocation_test.sh +M src/tests/heap-checker_unittest.cc +M src/tests/heap-profiler_unittest.cc +M src/tests/heap-profiler_unittest.sh +M src/tests/low_level_alloc_unittest.cc +M src/tests/malloc_extension_test.cc +M src/tests/markidle_unittest.cc +M src/tests/memalign_unittest.cc +M src/tests/pagemap_unittest.cc +M src/tests/profile-handler_unittest.cc +M src/tests/profiledata_unittest.cc +M src/tests/profiler_unittest.cc +M src/tests/profiler_unittest.sh +M src/tests/sampler_test.cc +M src/tests/stacktrace_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/config.h +M src/windows/google/tcmalloc.h +M src/windows/patch_functions.cc +M src/windows/port.h +M src/windows/preamble_patcher.cc +M vsprojects/addr2line-pdb/addr2line-pdb.vcproj +M vsprojects/addressmap_unittest/addressmap_unittest.vcproj +M vsprojects/frag_unittest/frag_unittest.vcproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/malloc_extension_test/malloc_extension_test.vcproj +M vsprojects/markidle_unittest/markidle_unittest.vcproj +M vsprojects/nm-pdb/nm-pdb.vcproj +M vsprojects/packed-cache_test/packed-cache_test.vcproj +M vsprojects/pagemap_unittest/pagemap_unittest.vcproj +M vsprojects/realloc_unittest/realloc_unittest.vcproj +M vsprojects/sampler_test/sampler_test.vcproj +M vsprojects/stack_trace_table_test/stack_trace_table_test.vcproj +M +vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcproj +M +vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcproj +M vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit 2197cc670204c583bba3903b765c77620f349609 +Author: csilvers +Date: Wed Jun 10 02:04:26 2009 +0000 + + Tue Jun 9 18:19:06 2009 Google Inc. + + * google-perftools: version 1.3 release + * Provide our own name for memory functions: tc_malloc, etc + (csilvers) + * Weaken memory-alloc functions so user can override them + (csilvers) + * Remove meaningless delete(nothrow) and delete[](nothrow) + (csilvers) + * BUILD: replace clever libtcmalloc/profiler.a with a new .a + (csilvers) + * PORTING: improve windows port by using google spinlocks + (csilvers) + * PORTING: Fix RedHat 9 memory allocation in heapchecker + (csilvers) + * PORTING: Rename OS_WINDOWS macro to PLATFORM_WINDOWS + (mbelshe) + * PORTING/BUGFIX: Make sure we don't clobber GetLastError + (mbelshe) + * BUGFIX: get rid of useless data for callgrind (weidenrinde) + * BUGFIX: Modify windows patching to deadlock sometimes + (csilvers) + * BUGFIX: an improved fix for hook handling during fork + (csilvers) + * BUGFIX: revamp profiler_unittest.sh, which was very broken + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@74 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M Makefile.in +M README +M aclocal.m4 +M configure +M configure.ac +D m4/stl_hash.m4 +M packages/deb/changelog +M packages/rpm/rpm.spec +M src/base/atomicops-internals-linuxppc.h +M src/base/dynamic_annotations.cc +M src/base/dynamic_annotations.h +M src/base/spinlock.cc +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/vdso_support.cc +M src/base/vdso_support.h +M src/config.h.in +A src/google/tcmalloc.h.in +M src/heap-checker.cc +M src/pprof +M src/profile-handler.cc +M src/tcmalloc.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/profiler_unittest.sh +M src/tests/stacktrace_unittest.cc +M src/windows/config.h +A src/windows/google/tcmalloc.h +M src/windows/override_functions.cc +M src/windows/patch_functions.cc + +commit 104bf697fbd2a0b90b5f01344ee01c8caa1745d0 +Author: csilvers +Date: Mon May 18 22:50:20 2009 +0000 + + Use the google spinlock code instead of the built-in windows code. + The main benefit for perftools is that google spinlocks allow for + link-time (static) initialization, which we had to simulate before, + yielding bugs and worse performance. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@73 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops-internals-x86-msvc.h +M src/base/spinlock.cc +M src/base/spinlock.h +M src/windows/config.h +M src/windows/patch_functions.cc +M src/windows/port.cc +M src/windows/port.h +M vsprojects/addressmap_unittest/addressmap_unittest.vcproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/packed-cache_test/packed-cache_test.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit ad03b009ef2046cee9dc38afe022b487de37db5c +Author: csilvers +Date: Sat Apr 25 01:01:23 2009 +0000 + + In the case of windows with HAS_EXCEPTIONS turned off we weren't able + to use the std::set_new_handler correctly. Rework the #ifdefs to + allow use of the std_new_handler, but ignore the exceptions. + + Patch submitted by mbelshe. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@72 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/tcmalloc.cc + +commit 1894763f57b00f72a720c4c126815c073d9ed0f3 +Author: csilvers +Date: Wed Apr 22 22:53:41 2009 +0000 + + Make sure we don't clobber GetLastError() (for windows). + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@71 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/windows/port.h + +commit a63235c4331445d718d151a2a659ec9687a0b8c8 +Author: csilvers +Date: Tue Apr 21 17:10:29 2009 +0000 + + 1) Change #include "config.h" to . This is what automake + recommends, and makes it easier to override a config file. + + 2) Rename OS_WINDOWS in sysinfo.cc, to not conflict with a macro + defined in a windows SDK somewhere. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@70 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M src/base/atomicops.h +M src/base/basictypes.h +M src/base/commandlineflags.h +M src/base/elfcore.h +M src/base/logging.cc +M src/base/logging.h +M src/base/low_level_alloc.h +M src/base/simple_mutex.h +M src/base/spinlock.cc +M src/base/spinlock.h +M src/base/stl_allocator.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/vdso_support.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/memfs_malloc.cc +M src/memory_region_map.cc +M src/memory_region_map.h +M src/page_heap.cc +M src/page_heap.h +M src/profiledata.cc +M src/profiledata.h +M src/raw_printer.cc +M src/raw_printer.h +M src/span.cc +M src/span.h +M src/stack_trace_table.cc +M src/stack_trace_table.h +M src/stacktrace.cc +M src/stacktrace_with_context.cc +M src/static_vars.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/tcmalloc.h +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/override_functions.cc +M src/windows/patch_functions.cc +M src/windows/port.cc + +commit beb6a9a183c1ca25c99e4401b58266ce73b8c846 +Author: csilvers +Date: Sat Apr 18 00:02:25 2009 +0000 + + Fri Apr 17 16:40:48 2009 Google Inc. + + * google-perftools: version 1.2 release + * Allow large_alloc_threshold=0 to turn it off entirely + (csilvers) + * Die more helpfully when out of memory for internal data + (csilvers) + * Refactor profile-data gathering, add a new unittest (cgd, + nabeelmian) + * BUGFIX: fix rounding errors with static thread-size caches + (addi) + * BUGFIX: disable hooks better when forking in leak-checker + (csilvers) + * BUGFIX: fix realloc of crt pointers on windows (csilvers) + * BUGFIX: do a better job of finding binaries in .sh tests + (csilvers) + * WINDOWS: allow overriding malloc/etc instead of patching + (mbelshe) + * PORTING: fix compilation error in a ppc-specific file + (csilvers) + * PORTING: deal with quirks in cygwin's /proc/self/maps + (csilvers) + * PORTING: use 'A' version of functions for ascii input + (mbelshe) + * PORTING: generate .so's on cygwin and mingw (ajenjo) + * PORTING: disable profiler methods on cygwin (jperkins) + * Updated autoconf version to 2.61 and libtool version + to 1.5.26 + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@68 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M README.windows +M aclocal.m4 +M config.guess +M config.sub +M configure +M configure.ac +M ltmain.sh +M packages/deb/changelog +M packages/rpm.sh +M packages/rpm/rpm.spec +M src/base/atomicops-internals-linuxppc.h +M src/base/logging.cc +M src/base/logging.h +M src/base/simple_mutex.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/config.h.in +M src/google/heap-checker.h +M src/google/profiler.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/page_heap_allocator.h +M src/pprof +A src/profile-handler.cc +A src/profile-handler.h +M src/profiledata.cc +M src/profiledata.h +M src/profiler.cc +M src/sampler.cc +M src/stacktrace_win32-inl.h +M src/stacktrace_x86-inl.h +M src/tcmalloc.cc +M src/tests/frag_unittest.cc +A src/tests/profile-handler_unittest.cc +M src/tests/profiledata_unittest.cc +M src/tests/sampling_test.cc +M src/tests/sampling_test.sh +M src/tests/testutil.cc +M src/thread_cache.cc +M src/windows/addr2line-pdb.c +M src/windows/config.h +M src/windows/mingw.h +M src/windows/nm-pdb.c +A src/windows/override_functions.cc +M src/windows/patch_functions.cc +M src/windows/port.cc +M src/windows/port.h + +commit edd03a831f350bc72d76d4fad2b390d43faccb79 +Author: csilvers +Date: Wed Mar 11 20:50:03 2009 +0000 + + Wed Mar 11 11:25:34 2009 Google Inc. + + * google-perftools: version 1.1 release + * Dynamically resize thread caches -- nice perf. improvement + (kash) + * Add VDSO support to give better stacktraces in linux + (ppluzhnikov) + * Improve heap-profiling sampling algorithm (ford) + * Rewrite leak-checking code: should be faster and more robust + (sanjay) + * Use ps2 instead of ps for dot: better page cropping for gv + (csilvers) + * Disable malloc-failure warning messages by default + (csilvers) + * Update config/Makefile to disable tests on a per-OS basis + (csilvers) + * PORTING: Get perftools compiling under MSVC 7.1 again + (csilvers) + * PORTING: Get perftools compiling under cygwin again + (csilvers) + * PORTING: automatically set library flags for solaris x86 + (csilvers) + * Add TCMALLOC_SKIP_SBRK to mirror TCMALLOC_SKIP_MMAP + (csilvers) + * Add --enable flags to allow selective building (csilvers) + * Put addr2line-pdb and nm-pdb in proper output directory + (csilvers) + * Remove deprecated DisableChecksIn (sanjay) + * DOCUMENTATION: Document most MallocExtension routines + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@66 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M README +M README.windows +M aclocal.m4 +M configure +M configure.ac +M doc/pprof_remote_servers.html +M doc/tcmalloc.html +M google-perftools.sln +A m4/acx_nanosleep.m4 +M packages/deb.sh +M packages/deb/changelog +M src/base/basictypes.h +M src/base/cycleclock.h +M src/base/dynamic_annotations.cc +M src/base/dynamic_annotations.h +M src/base/linux_syscall_support.h +M src/base/simple_mutex.h +M src/base/spinlock.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/thread_annotations.h +A src/base/vdso_support.cc +A src/base/vdso_support.h +M src/central_freelist.cc +M src/common.cc +M src/common.h +M src/config.h.in +M src/google/heap-checker.h +M src/google/malloc_extension.h +M src/google/malloc_extension_c.h +M src/google/stacktrace.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/memory_region_map.cc +M src/page_heap.cc +M src/pprof +M src/profiler.cc +C061 src/static_vars.cc src/raw_printer.cc +A src/raw_printer.h +A src/sampler.cc +A src/sampler.h +M src/span.cc +A src/stack_trace_table.cc +C056 src/static_vars.cc src/stack_trace_table.h +M src/stacktrace.cc +C057 src/stacktrace.cc src/stacktrace_config.h +M src/stacktrace_libunwind-inl.h +M src/stacktrace_win32-inl.h +C059 src/static_vars.cc src/stacktrace_with_context.cc +M src/stacktrace_x86-inl.h +M src/stacktrace_x86_64-inl.h +M src/static_vars.cc +M src/static_vars.h +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +M src/tests/heap-profiler_unittest.sh +C060 src/tests/sampling_test.cc src/tests/malloc_extension_test.cc +A src/tests/pagemap_unittest.cc +A src/tests/raw_printer_test.cc +A src/tests/realloc_unittest.cc +A src/tests/sampler_test.cc +M src/tests/sampling_test.cc +M src/tests/sampling_test.sh +A src/tests/stack_trace_table_test.cc +M src/tests/tcmalloc_unittest.cc +M src/thread_cache.cc +M src/thread_cache.h +M src/windows/addr2line-pdb.c +M src/windows/config.h +M src/windows/patch_functions.cc +M src/windows/port.h +M vsprojects/addr2line-pdb/addr2line-pdb.vcproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +C061 vsprojects/nm-pdb/nm-pdb.vcproj +vsprojects/malloc_extension_test/malloc_extension_test.vcproj +M vsprojects/nm-pdb/nm-pdb.vcproj +C064 vsprojects/nm-pdb/nm-pdb.vcproj +vsprojects/pagemap_unittest/pagemap_unittest.vcproj +C065 vsprojects/nm-pdb/nm-pdb.vcproj +vsprojects/realloc_unittest/realloc_unittest.vcproj +C063 vsprojects/nm-pdb/nm-pdb.vcproj +vsprojects/sampler_test/sampler_test.vcproj +C061 vsprojects/nm-pdb/nm-pdb.vcproj +vsprojects/stack_trace_table_test/stack_trace_table_test.vcproj +M vsprojects/tmu-static/tmu-static.vcproj + +commit c75de4d1e91c339fb5142a8a21be8b3ba5224ef7 +Author: csilvers +Date: Tue Jan 6 19:41:15 2009 +0000 + + Tue Jan 6 13:58:56 2009 Google Inc. + * google-perftools: version 1.0 release + * Exactly the same as 1.0rc2 + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@64 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M packages/deb/changelog +M src/pprof + +commit 49b02736109f9fe3383971e62bda2192ae86a36d +Author: csilvers +Date: Mon Dec 15 01:20:31 2008 +0000 + + Sun Dec 14 17:10:35 2008 Google Inc. + * google-perftools: version 1.0rc2 release + * Fix compile error on 64-bit systems (casting ptr to int) + (csilvers) + + Thu Dec 11 16:01:32 2008 Google Inc. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@62 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M src/heap-checker.cc + +commit 6fa2a2574ce1c15ac12293e24691d69a41972e54 +Author: csilvers +Date: Sat Dec 13 01:35:42 2008 +0000 + + Thu Dec 11 16:01:32 2008 Google Inc. + + * google-perftools: version 1.0rc1 release + * Replace API for selectively disabling heap-checker in code + (sanjay) + * Add a pre-mmap hook (daven, adlr) + * Add MallocExtension interface to set memory-releasing rate + (fikes) + * Augment pprof to allow any string ending in /pprof/profile + (csilvers) + * PORTING: Rewrite -- and fix -- malloc patching for windows + (dvitek) + * PORTING: Add nm-pdb and addr2line-pdb for use by pprof + (dvitek) + * PORTING: Improve cygwin and mingw support (jperkins, + csilvers) + * PORTING: Fix pprof for mac os x, other pprof improvements + (csilvers) + * PORTING: Fix some PPC bugs in our locking code + (anton.blanchard) + * A new unittest, smapling_test, to verify tcmalloc-profiles + (csilvers) + * Turn off TLS for gcc < 4.1.2, due to a TLS + -fPIC bug + (csilvers) + * Prefer __builtin_frame_address to assembly for stacktraces + (nlewycky) + * Separate tcmalloc.cc out into multiple files -- + finally! (kash) + * Make our locking code work with -fPIC on 32-bit x86 (aruns) + * Fix an initialization-ordering bug for tcmalloc/profiling + (csilvers) + * Use "initial exec" model of TLS to speed up tcmalloc + (csilvers) + * Enforce 16-byte alignment for tcmalloc, for SSE (sanjay) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@60 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M README.windows +M configure +M configure.ac +M doc/heap_checker.html +M doc/pprof_remote_servers.html +M google-perftools.sln +M packages/deb.sh +M packages/deb/changelog +M src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-x86.h +M src/base/basictypes.h +M src/base/linux_syscall_support.h +M src/base/logging.cc +M src/base/logging.h +M src/base/simple_mutex.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +A src/base/thread_annotations.h +M src/base/thread_lister.c +A src/central_freelist.cc +A src/central_freelist.h +A src/common.cc +A src/common.h +M src/getpc.h +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +M src/google/malloc_hook.h +M src/google/malloc_hook_c.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +A src/linked_list.h +M src/malloc_extension.cc +M src/malloc_hook-inl.h +M src/malloc_hook.cc +M src/memory_region_map.cc +M src/memory_region_map.h +A src/page_heap.cc +A src/page_heap.h +A src/page_heap_allocator.h +M src/pprof +M src/profiler.cc +A src/span.cc +A src/span.h +M src/stacktrace.cc +M src/stacktrace_libunwind-inl.h +A src/stacktrace_win32-inl.h +M src/stacktrace_x86-inl.h +C059 src/base/logging.cc src/static_vars.cc +A src/static_vars.h +M src/tcmalloc.cc +C071 src/base/logging.cc src/tcmalloc_guard.h +M src/tests/atomicops_unittest.cc +M src/tests/frag_unittest.cc +M src/tests/heap-checker_unittest.cc +M src/tests/low_level_alloc_unittest.cc +C052 src/base/logging.cc src/tests/sampling_test.cc +A src/tests/sampling_test.sh +M src/tests/stacktrace_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/tests/testutil.cc +A src/thread_cache.cc +A src/thread_cache.h +A src/windows/addr2line-pdb.c +A src/windows/get_mangled_names.cc +M src/windows/mingw.h +M src/windows/mini_disassembler.cc +M src/windows/mini_disassembler.h +M src/windows/mini_disassembler_types.h +A src/windows/nm-pdb.c +M src/windows/patch_functions.cc +M src/windows/port.cc +M src/windows/port.h +M src/windows/preamble_patcher.cc +M src/windows/preamble_patcher.h +M src/windows/preamble_patcher_with_stub.cc +D src/windows/vc7and8.def +R059 vsprojects/memalign_unittest/memalign_unittest.vcproj +vsprojects/addr2line-pdb/addr2line-pdb.vcproj +M vsprojects/frag_unittest/frag_unittest.vcproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/markidle_unittest/markidle_unittest.vcproj +C068 vsprojects/frag_unittest/frag_unittest.vcproj +vsprojects/nm-pdb/nm-pdb.vcproj +M +vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcproj +M +vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcproj +M vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcproj +R074 +vsprojects/tcmalloc_minimal_unittest-static/tcmalloc_minimal_unittest-static.vcproj +vsprojects/tmu-static/tmu-static.vcproj + +commit 16191f87ff8dc78295c0f617060460664fc444bd +Author: csilvers +Date: Tue Sep 23 17:51:05 2008 +0000 + + Tue Sep 23 08:56:31 2008 Google Inc. + + * google-perftools: version 0.99.2 release + * COMPILE FIX: add #include needed for FreeBSD and OS X + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@58 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M src/tests/heap-profiler_unittest.cc + +commit 8b2dd25dc9d1523ab9a86bd39c4fb798c89db899 +Author: csilvers +Date: Sat Sep 20 17:15:23 2008 +0000 + + Sat Sep 20 09:37:18 2008 Google Inc. + + * google-perftools: version 0.99.1 release + * BUG FIX: look for nm, etc in /usr/bin, not /usr/crosstool + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@56 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M packages/deb/changelog +M src/pprof + +commit 106aef86ce5697cf44bdbec90ab6833b9254d273 +Author: csilvers +Date: Fri Sep 19 20:06:40 2008 +0000 + + Thu Sep 18 16:00:27 2008 Google Inc. + + * google-perftools: version 0.99 release + * Add IsHeapProfileRunning (csilvers) + * Add C shims for some of the C++ header files (csilvers) + * Fix heap profile file clean-up logic (maxim) + * Rename linuxthreads.c to .cc for better compiler support + (csilvers) + * Add source info to disassembly in pprof (sanjay) + * Use open instead of fopen to avoid memory alloc (csilvers) + * Disable malloc extensions when running under valgrind (kcc) + * BUG FIX: Fix out-of-bound error by reordering a check + (larryz) + * Add Options struct to ProfileData (cgd) + * Correct PC-handling of --base in pprof (csilvers) + * Handle 1 function occurring twice in an image (sanjay) + * Improve stack-data cleaning (maxim) + * Use 'struct Foo' to make header C compatible (csilvers) + * Add 'total' line to pprof --text (csilvers) + * Pre-allocate buffer for heap-profiler to avoid OOM errors + (csilvers) + * Allow a few more env-settings to control tcmalloc (csilvers) + * Document some of the issues involving thread-local storage + (csilvers) + * BUG FIX: Define strtoll and friends for windows (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@54 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M README +M README.windows +M configure +M configure.ac +M doc/heapprofile.html +M doc/tcmalloc.html +M packages/deb/changelog +M src/addressmap-inl.h +M src/base/basictypes.h +M src/base/commandlineflags.h +M src/base/cycleclock.h +M src/base/dynamic_annotations.cc +M src/base/dynamic_annotations.h +R099 src/base/linuxthreads.c src/base/linuxthreads.cc +M src/base/spinlock.h +M src/base/stl_allocator.h +M src/base/sysinfo.cc +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +A src/google/malloc_extension_c.h +M src/google/malloc_hook.h +A src/google/malloc_hook_c.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/memory_region_map.cc +M src/pprof +M src/profiledata.cc +M src/profiledata.h +M src/profiler.cc +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +M src/tests/heap-profiler_unittest.cc +M src/tests/markidle_unittest.cc +M src/tests/profiledata_unittest.cc +M src/windows/port.h + +commit 100e657c5092bc274424286a728db5116a4bbc54 +Author: csilvers +Date: Sat Jun 14 02:30:53 2008 +0000 + + Mon Jun 9 16:47:03 2008 Google Inc. + + * google-perftools: version 0.98 release + * Add ProfilerStartWithOptions() (cgd) + * Change tcmalloc_minimal to not do any stack-tracing at all + (csilvers) + * Prefer mmap to sbrk for 64-buit debug mode (sanjay) + * Fix accounting for some tcmalloc stats (sanjay) + * Use setrlimit() to keep unittests from killing the machine + (odo) + * Fix a bug when sbrk-ing near address 4G (csilvers) + * Make MallocHook thread-safe (jyasskin) + * Fix windows build for MemoryBarrier (jyasskin) + * Fix CPU-profiler docs to mention correct libs (csilvers) + * Fix for GetHeapProfile() when heap-profiling is off (maxim) + * Avoid realloc resizing ping-pongs using hysteresis + (csilvers) + * Add --callgrind output support to pprof (klimek) + * Fix profiler.h and heap-profiler.h to be C-compatible + (csilvers) + * Break malloc_hook.h into two parts to reduce dependencies + (csilvers) + * Better handle systems that don't implement mmap (csilvers) + * PORTING: disable system_alloc_unittest for msvc (csilvers) + * PORTING: Makefile tweaks to build better on cygwin + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@52 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M Makefile.in +M README.windows +M configure +M configure.ac +M doc/cpuprofile.html +M google-perftools.sln +M m4/acx_pthread.m4 +M packages/deb/changelog +M src/addressmap-inl.h +M src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-x86-msvc.h +M src/base/atomicops-internals-x86.cc +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/base/commandlineflags.h +M src/base/cycleclock.h +M src/base/dynamic_annotations.cc +M src/base/dynamic_annotations.h +M src/base/linux_syscall_support.h +M src/base/low_level_alloc.cc +M src/base/low_level_alloc.h +M src/base/simple_mutex.h +M src/base/spinlock.h +M src/base/stl_allocator.h +M src/base/sysinfo.h +M src/config.h.in +M src/getpc.h +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +M src/google/malloc_hook.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/heap-checker.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/internal_logging.h +A src/malloc_hook-inl.h +M src/malloc_hook.cc +M src/maybe_threads.cc +M src/maybe_threads.h +M src/memory_region_map.cc +M src/memory_region_map.h +M src/packed-cache-inl.h +M src/pagemap.h +M src/pprof +M src/profiledata.h +M src/profiler.cc +M src/stacktrace_generic-inl.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/tests/maybe_threads_unittest.sh +M src/tests/memalign_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/tests/testutil.cc +M src/tests/testutil.h +M src/windows/config.h +M src/windows/mingw.h +M src/windows/mini_disassembler.h +M src/windows/mini_disassembler_types.h +M src/windows/patch_functions.cc +M src/windows/port.h +M src/windows/preamble_patcher.h +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M vsprojects/memalign_unittest/memalign_unittest.vcproj +D vsprojects/system_alloc_unittest/system_alloc_unittest.vcproj +M +vsprojects/tcmalloc_minimal_unittest-static/tcmalloc_minimal_unittest-static.vcproj + +commit 7ec719093b1c9fda979ba0d07eed288e2a7c3c9b +Author: csilvers +Date: Tue Apr 22 01:47:16 2008 +0000 + + Mon Apr 21 15:20:52 2008 Google Inc. + + * google-perftools: version 0.97 release + * Refactor GetHeapProfile to avoid using malloc (maxim) + * Fix heap-checker and heap-profiler hook interactions (maxim) + * Fix a data race in MemoryRegionMap::Lock (jyasskin) + * Improve thread-safety of leak checker (maxim) + * Fix mmap profile to no longer deadlock (maxim) + * Fix rpm to have devel package depend on non-devel (csilvers) + * PORTING: Fix clock-speed detection for Mac OS X (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@50 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M doc/heapprofile.html +M packages/deb/changelog +M packages/rpm/rpm.spec +M src/addressmap-inl.h +M src/base/cycleclock.h +M src/base/elfcore.h +M src/base/low_level_alloc.cc +M src/base/spinlock.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/profiler.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/memory_region_map.cc +M src/memory_region_map.h +M src/pprof +M src/stacktrace_libunwind-inl.h +M src/stacktrace_x86-inl.h +M src/tcmalloc.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +M src/tests/heap-profiler_unittest.cc +M src/tests/low_level_alloc_unittest.cc +M src/tests/maybe_threads_unittest.sh +M src/windows/port.cc + +commit 97fdd4a4f97dd15e8803ed51ac153903c2cdffc2 +Author: csilvers +Date: Wed Mar 19 23:35:27 2008 +0000 + + Tue Mar 18 14:30:44 2008 Google Inc. + + * google-perftools: version 0.96 release + * major atomicops rewrite; fixed atomic ops code for linux/ppc + (vchen) + * nix the stacktrace library; now build structure is simpler + (csilvers) + * Speed up heap-checker, and reduce extraneous logging (maxim) + * Improve itimer code for NPTL case (cgd) + * Add source code annotations for use by valgrind, etc (kcc) + * PORTING: Fix high resolution timers for Mac OS X (adlr) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@48 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M TODO +M configure +M configure.ac +M doc/cpuprofile.html +M doc/heapprofile.html +M packages/deb/changelog +M packages/rpm/rpm.spec +M src/addressmap-inl.h +M src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-macosx.h +M src/base/atomicops-internals-x86-msvc.h +M src/base/atomicops-internals-x86.cc +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/base/basictypes.h +M src/base/cycleclock.h +A src/base/dynamic_annotations.cc +A src/base/dynamic_annotations.h +M src/base/linux_syscall_support.h +M src/base/low_level_alloc.cc +M src/base/spinlock.cc +M src/base/spinlock.h +M src/base/sysinfo.cc +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/memfs_malloc.cc +M src/pprof +M src/profiler.cc +M src/tests/atomicops_unittest.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/maybe_threads_unittest.sh +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +M +vsprojects/tcmalloc_minimal_unittest-static/tcmalloc_minimal_unittest-static.vcproj + +commit a644b4f2d61b9610ec6eeb1f09ebce7054aa0762 +Author: csilvers +Date: Tue Feb 19 22:19:22 2008 +0000 + + Tue Feb 19 12:01:31 2008 Google Inc. + + * google-perftools: version 0.95.1 release (bugfix release) + * x86_64 compile-fix: nix pread64 and pwrite64 (csilvers) + * more heap-checker debug logging (maxim) + * minor improvement to x86_64 CycleClock (gpike) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@46 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M src/base/cycleclock.h +M src/base/linux_syscall_support.h +M src/heap-checker.cc + +commit 8a0a3101bc6a7d56ac04b278f28bdf3f95b00a3c +Author: csilvers +Date: Wed Feb 13 00:55:09 2008 +0000 + + Tue Feb 12 12:28:32 2008 Google Inc. + + * google-perftools: version 0.95 release + * Better -- not perfect -- support for linux-ppc (csilvers) + * Fix race condition in libunwind stacktrace (aruns) + * Speed up x86 spinlock locking (m3b) + * Improve heap-checker performance (maxim) + * Heap checker traverses more ptrs inside heap-alloced objects + (maxim) + * Remove deprecated ProfilerThreadState function (cgd) + * Update libunwind documentation for statically linked + binaries (aruns) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@44 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M configure +M configure.ac +M doc/heap_checker.html +M doc/tcmalloc.html +M packages/deb/changelog +M packages/deb/docs +M packages/rpm/rpm.spec +M src/addressmap-inl.h +A src/base/atomicops-internals-linuxppc.h +M src/base/atomicops-internals-x86-msvc.h +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/base/commandlineflags.h +A src/base/cycleclock.h +M src/base/elfcore.h +M src/base/linux_syscall_support.h +M src/base/linuxthreads.c +M src/base/linuxthreads.h +M src/base/logging.h +R090 src/base/mutex.h src/base/simple_mutex.h +M src/base/spinlock.cc +M src/base/spinlock.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/google/heap-checker.h +M src/google/profiler.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/maybe_threads.cc +M src/packed-cache-inl.h +M src/profiledata.h +M src/profiler.cc +M src/stacktrace.cc +M src/stacktrace_libunwind-inl.h +M src/stacktrace_powerpc-inl.h +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/addressmap_unittest.cc +M src/tests/heap-checker_unittest.cc +M src/tests/profiler_unittest.cc +M src/tests/stacktrace_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/preamble_patcher.h + +commit b43ba444fcd74fa7c3260f6b2494dcbaa3fdb296 +Author: csilvers +Date: Wed Dec 5 00:08:28 2007 +0000 + + Mon Dec 3 23:51:54 2007 Google Inc. + + * google-perftools: version 0.94.1 release (bugfix release) + * Fix missing #includes for x86_64 compile using libunwind + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@42 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M src/stacktrace_libunwind-inl.h + +commit 11b02f7aebd05cf39f6f93bdd48786909f99f34e +Author: csilvers +Date: Thu Nov 29 23:39:24 2007 +0000 + + Thu Nov 29 07:59:43 2007 Google Inc. + + * google-perftools: version 0.94 release + * PORTING: MinGW/Msys support -- runs same code as MSVC does + (csilvers) + * PORTING: Add NumCPUs support for Mac OS X (csilvers) + * Work around a sscanf bug in glibc(?) (waldemar) + * Fix Windows MSVC bug triggered by thread deletion (csilvers) + * Fix bug that triggers in MSVC /O2: missing volatile (gpike) + * March-of-time support: quiet warnings/errors for gcc 4.2, + OS X 10.5 + * Modify pprof so it works without nm: useful for windows + (csilvers) + * pprof: Support filtering for CPU profiles (cgd) + * Bugfix: have realloc report to hooks in all situations + (maxim) + * Speed improvement: replace slow memcpy with std::copy + (soren) + * Speed: better iterator efficiency in RecordRegionRemoval + (soren) + * Speed: minor speed improvements via better bitfield + alignment (gpike) + * Documentation: add documentation of binary profile output + (cgd) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@40 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M configure +M configure.ac +A doc/cpuprofile-fileformat.html +M doc/cpuprofile.html +M packages/deb/changelog +M src/base/linux_syscall_support.h +M src/base/spinlock.cc +M src/base/sysinfo.cc +M src/config.h.in +M src/getpc.h +M src/google/heap-checker.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profiler.cc +M src/malloc_hook.cc +M src/memfs_malloc.cc +M src/memory_region_map.cc +M src/packed-cache-inl.h +M src/pprof +A src/profiledata.cc +A src/profiledata.h +M src/profiler.cc +M src/stacktrace_generic-inl.h +M src/stacktrace_libunwind-inl.h +M src/stacktrace_powerpc-inl.h +M src/stacktrace_x86-inl.h +M src/stacktrace_x86_64-inl.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/tests/addressmap_unittest.cc +M src/tests/heap-checker_unittest.cc +M src/tests/low_level_alloc_unittest.cc +M src/tests/maybe_threads_unittest.sh +A src/tests/profiledata_unittest.cc +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/tests/testutil.cc +M src/windows/config.h +A src/windows/mingw.h +M src/windows/mini_disassembler.h +M src/windows/patch_functions.cc +M src/windows/port.cc +M src/windows/port.h +M src/windows/preamble_patcher.h +M src/windows/preamble_patcher_with_stub.cc +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj + +commit 49b74b9508797f8aafe6b86e62e7efc4ec200e48 +Author: csilvers +Date: Fri Aug 17 20:56:15 2007 +0000 + + * google-perftools: version 0.93 release + * PORTING: everything compiles on Solaris, OS X, FreeBSD + (see INSTALL) + * PORTING: cpu-profiler works on most platforms (much + better GetPC()) + * PORTING: heap-profiler works on most platforms + * PORTING: improved windows support, including release builds + * No longer build or run ptmalloc tests by default + * Add support for using memfs filesystem to allocate memory + in linux + * WINDOWS: give debug library and release library different + names + + Tue Jul 17 22:26:27 2007 Google Inc. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@38 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M README +M README.windows +M autogen.sh +M configure +M configure.ac +M google-perftools.sln +M m4/program_invocation_name.m4 +M packages/deb/changelog +M src/addressmap-inl.h +M src/base/basictypes.h +M src/base/logging.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/base/thread_lister.c +M src/config.h.in +M src/config_for_unittests.h +A src/getpc.h +M src/google/heap-checker.h +M src/google/malloc_hook.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profile-table.h +M src/heap-profiler.cc +M src/malloc_extension.cc +M src/malloc_hook.cc +A src/memfs_malloc.cc +M src/memory_region_map.cc +M src/memory_region_map.h +M src/pprof +M src/profiler.cc +M src/stacktrace_powerpc-inl.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/tests/addressmap_unittest.cc +A src/tests/getpc_test.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +M src/tests/heap-profiler_unittest.sh +M src/tests/low_level_alloc_unittest.cc +M src/tests/maybe_threads_unittest.sh +M src/tests/memalign_unittest.cc +M src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/windows/TODO +M src/windows/config.h +A src/windows/ia32_modrm_map.cc +A src/windows/ia32_opcode_map.cc +A src/windows/mini_disassembler.cc +A src/windows/mini_disassembler.h +A src/windows/mini_disassembler_types.h +A src/windows/patch_functions.cc +M src/windows/port.cc +M src/windows/port.h +A src/windows/preamble_patcher.cc +A src/windows/preamble_patcher.h +A src/windows/preamble_patcher_with_stub.cc +M src/windows/vc7and8.def +M vsprojects/addressmap_unittest/addressmap_unittest.vcproj +M vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +M +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +C054 vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +vsprojects/tcmalloc_minimal_unittest-static/tcmalloc_minimal_unittest-static.vcproj + +commit c437e1fcdd1e6ff3f032928d460cbfc115e2324f +Author: csilvers +Date: Wed Jul 18 18:30:50 2007 +0000 + + Tue Jul 17 22:26:27 2007 Google Inc. + + * google-perftools: version 0.92 release + * PERFORMANCE: use a packed cache to speed up tcmalloc + * PORTING: preliminary windows support! (see README.windows) + * PORTING: better support for solaris, OS X, FreeBSD + (see INSTALL) + * Envvar support for running the heap-checker under gdb + * Add weak declarations to maybe_threads to fix no-pthreads + compile bugs + * Some 64bit fixes, especially with pprof + * Better heap-checker support for some low-level allocations + * Fix bug where heap-profiles would sometimes get truncated + * New documentation about how to handle common heap leak + situations + * Use computed includes for hash_map/set: easier config + * Added all used .m4 templates to the distribution + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@36 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M README +A README.windows +M aclocal.m4 +A autogen.sh +M compile +M config.guess +M config.sub +M configure +M configure.ac +M depcomp +M doc/cpuprofile.html +M doc/heap_checker.html +M doc/heapprofile.html +A google-perftools.sln +M install-sh +A m4/ac_have_attribute.m4 +A m4/acx_pthread.m4 +A m4/compiler_characteristics.m4 +A m4/install_prefix.m4 +A m4/namespaces.m4 +A m4/program_invocation_name.m4 +A m4/stl_hash.m4 +A m4/stl_namespace.m4 +M missing +M mkinstalldirs +M packages/deb/changelog +M packages/rpm/rpm.spec +M src/base/atomicops-internals-x86-msvc.h +M src/base/atomicops-internals-x86.h +M src/base/atomicops.h +M src/base/basictypes.h +M src/base/commandlineflags.h +M src/base/logging.h +M src/base/low_level_alloc.cc +M src/base/low_level_alloc.h +D src/base/mutex.cc +M src/base/mutex.h +M src/base/spinlock.cc +M src/base/spinlock.h +M src/base/stl_allocator.h +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/config.h.in +C068 src/tests/testutil.h src/config_for_unittests.h +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +M src/google/malloc_hook.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/heap-checker.cc +M src/heap-profile-table.cc +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/maybe_threads.cc +M src/maybe_threads.h +M src/memory_region_map.cc +M src/memory_region_map.h +A src/packed-cache-inl.h +M src/pprof +M src/profiler.cc +M src/solaris/libstdc++.la +M src/stacktrace.cc +A src/stacktrace_powerpc-inl.h +M src/stacktrace_x86-inl.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +C053 src/tests/testutil.cc src/tcmalloc.h +M src/tests/frag_unittest.cc +M src/tests/heap-checker_unittest.cc +M src/tests/heap-profiler_unittest.cc +M src/tests/heap-profiler_unittest.sh +M src/tests/low_level_alloc_unittest.cc +M src/tests/markidle_unittest.cc +A src/tests/maybe_threads_unittest.sh +M src/tests/memalign_unittest.cc +C065 src/tests/testutil.h src/tests/packed-cache_test.cc +M src/tests/profiler_unittest.cc +M src/tests/stacktrace_unittest.cc +C051 src/tests/thread_dealloc_unittest.cc +src/tests/system-alloc_unittest.cc +M src/tests/tcmalloc_unittest.cc +M src/tests/testutil.cc +M src/tests/testutil.h +M src/tests/thread_dealloc_unittest.cc +A src/windows/TODO +C060 src/config.h.in src/windows/config.h +A src/windows/port.cc +A src/windows/port.h +A src/windows/vc7and8.def +A vsprojects/addressmap_unittest/addressmap_unittest.vcproj +A vsprojects/frag_unittest/frag_unittest.vcproj +A vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj +A +vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj +A vsprojects/markidle_unittest/markidle_unittest.vcproj +A vsprojects/memalign_unittest/memalign_unittest.vcproj +A vsprojects/packed-cache_test/packed-cache_test.vcproj +A vsprojects/system_alloc_unittest/system_alloc_unittest.vcproj +A +vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcproj +A +vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcproj +A vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcproj + +commit 6878379d5bab87c787cdd3487b5620a9c8adf376 +Author: csilvers +Date: Thu Apr 19 00:53:22 2007 +0000 + + Wed Apr 18 16:43:55 2007 Google Inc. + + * google-perftools: version 0.91 release + * Brown-paper-bag bugfix: compilation error on some x86-64 + machines + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@30 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M README +M config.guess +M config.sub +M configure +M configure.ac +M src/base/sysinfo.cc +M src/base/sysinfo.h +M src/stacktrace_libunwind-inl.h +M src/tests/ptmalloc/malloc-machine.h + +commit 74ad5d57ec08abace386befc6c3c695d85f44d1a +Author: csilvers +Date: Mon Apr 16 20:49:32 2007 +0000 + + Fri Apr 13 14:50:51 2007 Google Inc. + + * google-perftools: version 0.90 release + * (As the version-number jump hints, this is a major new + release: + almost every piece of functionality was rewritten. + I can't do + justice to all the changes, but will concentrate on + highlights.) + *** USER-VISIBLE CHANGES: + * Ability to "release" unused memory added to tcmalloc + * Exposed more tweaking knobs via environment variables + (see docs) + * pprof tries harder to map addresses to functions + * tcmalloc_minimal compiles and runs on FreeBSD 6.0 and + Solaris 10 + *** INTERNAL CHANGES: + * Much better 64-bit support + * Better multiple-processor support (e.g. multicore contention + tweaks) + * Support for recent kernel ABI changes (e.g. new arg + to mremap) + * Addition of spinlocks to tcmalloc to reduce contention cost + * Speed up tcmalloc by using __thread on systems that + support TLS + * Total redesign of heap-checker to improve liveness checking + * More portable stack-frame analysis -- no more hard-coded + constants! + * Disentangled heap-profiler code and heap-checker code + * Several new unittests to test, e.g., thread-contention costs + * Lots of small (but important!) bug fixes: e.g., fixing + GetPC on amd64 + *** KNOWN PROBLEMS: + * CPU-profiling may crash on x86_64 (64-bit) systems. + See the README + * Profiling/heap-checking may deadlock on x86_64 systems. + See README + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@28 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M INSTALL +M Makefile.am +M Makefile.in +M README +M TODO +M aclocal.m4 +M config.guess +M config.sub +M configure +M configure.ac +R050 doc/cpu_profiler.html doc/cpuprofile.html +A doc/designstyle.css +M doc/heap_checker.html +D doc/heap_profiler.html +A doc/heapprofile.html +M doc/index.html +M doc/tcmalloc.html +M ltmain.sh +M packages/deb/changelog +A packages/deb/docs +M packages/rpm/rpm.spec +M src/addressmap-inl.h +A src/base/atomicops-internals-macosx.h +A src/base/atomicops-internals-x86-msvc.h +A src/base/atomicops-internals-x86.cc +A src/base/atomicops-internals-x86.h +A src/base/atomicops.h +M src/base/basictypes.h +M src/base/commandlineflags.h +M src/base/elfcore.h +M src/base/googleinit.h +M src/base/linux_syscall_support.h +M src/base/linuxthreads.c +M src/base/linuxthreads.h +C074 src/base/googleinit.h src/base/logging.cc +M src/base/logging.h +A src/base/low_level_alloc.cc +A src/base/low_level_alloc.h +A src/base/mutex.cc +A src/base/mutex.h +A src/base/spinlock.cc +A src/base/spinlock.h +A src/base/stl_allocator.h +A src/base/sysinfo.cc +A src/base/sysinfo.h +M src/base/thread_lister.c +M src/base/thread_lister.h +M src/config.h.in +M src/google/heap-checker.h +M src/google/heap-profiler.h +M src/google/malloc_extension.h +M src/google/malloc_hook.h +M src/google/profiler.h +M src/google/stacktrace.h +M src/heap-checker-bcad.cc +M src/heap-checker.cc +A src/heap-profile-table.cc +A src/heap-profile-table.h +D src/heap-profiler-inl.h +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_logging.h +D src/internal_spinlock.h +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/maybe_threads.cc +A src/memory_region_map.cc +A src/memory_region_map.h +M src/pprof +M src/profiler.cc +A src/solaris/libstdc++.la +M src/stacktrace.cc +M src/stacktrace_generic-inl.h +M src/stacktrace_libunwind-inl.h +M src/stacktrace_x86-inl.h +M src/stacktrace_x86_64-inl.h +M src/system-alloc.cc +M src/system-alloc.h +M src/tcmalloc.cc +M src/tests/addressmap_unittest.cc +A src/tests/atomicops_unittest.cc +A src/tests/frag_unittest.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +M src/tests/heap-checker_unittest.sh +M src/tests/heap-profiler_unittest.cc +M src/tests/heap-profiler_unittest.sh +A src/tests/low_level_alloc_unittest.cc +A src/tests/markidle_unittest.cc +A src/tests/memalign_unittest.cc +M src/tests/profiler_unittest.sh +M src/tests/ptmalloc/malloc-machine.h +M src/tests/stacktrace_unittest.cc +M src/tests/tcmalloc_large_unittest.cc +M src/tests/tcmalloc_unittest.cc +C055 src/stacktrace.cc src/tests/testutil.cc +C074 src/base/googleinit.h src/tests/testutil.h +C055 src/stacktrace.cc src/tests/thread_dealloc_unittest.cc + +commit ddbf2f027fb4ca8781fd50820ceb870570f414bc +Author: csilvers +Date: Thu Mar 22 05:03:28 2007 +0000 + + Now that we've uploaded the full source, including the doc/ directory, + we can get rid of docs/ + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@27 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +D docs/html/cpu_profiler.html +D docs/html/heap_checker.html +D docs/html/heap_profiler.html +D docs/html/tcmalloc.html +D docs/images/heap-example1.png +D docs/images/overview.gif +D docs/images/pageheap.gif +D docs/images/pprof-test.gif +D docs/images/pprof-vsnprintf.gif +D docs/images/spanmap.gif +D docs/images/tcmalloc-opspercpusec.png +D docs/images/tcmalloc-opspercpusec_002.png +D docs/images/tcmalloc-opspercpusec_003.png +D docs/images/tcmalloc-opspercpusec_004.png +D docs/images/tcmalloc-opspercpusec_005.png +D docs/images/tcmalloc-opspercpusec_006.png +D docs/images/tcmalloc-opspercpusec_007.png +D docs/images/tcmalloc-opspercpusec_008.png +D docs/images/tcmalloc-opspercpusec_009.png +D docs/images/tcmalloc-opspersec.png +D docs/images/tcmalloc-opspersec_002.png +D docs/images/tcmalloc-opspersec_003.png +D docs/images/tcmalloc-opspersec_004.png +D docs/images/tcmalloc-opspersec_005.png +D docs/images/tcmalloc-opspersec_006.png +D docs/images/tcmalloc-opspersec_007.png +D docs/images/tcmalloc-opspersec_008.png +D docs/images/tcmalloc-opspersec_009.png +D docs/images/threadheap.gif + +commit 7ede7d6a9fe772b0bfa05acb2a2a6867405b474a +Author: csilvers +Date: Thu Mar 22 05:01:39 2007 +0000 + + set mime-type for png and gifs + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@26 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +commit 8e188310f7d8732d81b7b04f193f89964b7af6c5 +Author: csilvers +Date: Thu Mar 22 04:55:49 2007 +0000 + + Wed Jun 14 15:11:14 2006 Google Inc. + + * google-perftools: version 0.8 release + * Experimental support for remote profiling added to pprof + (many) + * Fixed race condition in ProfileData::FlushTable (etune) + * Better support for weird /proc maps (maxim, mec) + * Fix heap-checker interaction with gdb (markus) + * Better 64-bit support in pprof (aruns) + * Reduce scavenging cost in tcmalloc by capping NumMoveSize + (sanjay) + * Cast syscall(SYS_mmap); works on more 64-bit systems now + (menage) + * Document the text output of pprof! (csilvers) + * Better compiler support for no-THREADS and for old compilers + (csilvers) + * Make libunwind the default stack unwinder for x86-64 (aruns) + * Somehow the COPYING file got erased. Regenerate it + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@23 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M COPYING +M ChangeLog +M Makefile.am +M aclocal.m4 +M configure +M configure.ac +M doc/cpu_profiler.html +A doc/pprof_remote_servers.html +M src/base/linux_syscall_support.h +M src/base/linuxthreads.c +M src/base/thread_lister.c +M src/google/heap-checker.h +M src/heap-checker.cc +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/pprof +M src/profiler.cc +M src/stacktrace.cc +M src/stacktrace_libunwind-inl.h +M src/tcmalloc.cc +M src/tests/heap-checker_unittest.cc +M src/tests/tcmalloc_unittest.cc + +commit c3b96b3ac552160abde541bba8ac7b4f8338efa0 +Author: csilvers +Date: Thu Mar 22 04:48:00 2007 +0000 + + Thu Apr 13 20:59:09 2006 Google Inc. + + * google-perftools: version 0.7 release + * Major rewrite of thread introspection for new kernels + (markus) + * Major rewrite of heap-checker to use new thread tools + (maxim) + * Add proper support for following data in thread registers + (maxim) + * Syscall support for older kernels, including _syscall6 + (markus) + * Support PIC mode (markus, mbland, iant) + * Better support for running in non-threaded contexts + (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@21 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M src/base/elfcore.h +M src/base/linux_syscall_support.h +M src/base/linuxthreads.c +M src/base/thread_lister.h +M src/google/heap-checker.h +M src/heap-checker.cc +M src/heap-profiler.cc +M src/malloc_hook.cc +M src/pprof +M src/profiler.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +M src/tests/tcmalloc_unittest.cc + +commit 60a3a2ce77ed2713b2eedd20952d9cfc56ff7ccf +Author: csilvers +Date: Thu Mar 22 04:46:29 2007 +0000 + + Fri Jan 27 14:04:27 2006 Google Inc. + + * google-perftools: version 0.6 release + * More sophisticated stacktrace usage, possibly using + libunwind (aruns) + * Update pprof to handle 64-bit profiles (dehnert) + * Fix GetStackTrace to correctly return top stackframe + (sanjay) + * Add ANSI compliance for new and new[], including new_handler + (jkearney) + * More accuracy by reading ELF files directly rather than + objdump (mec) + * Add readline support for pprof (addi) + * Add #includes for PPC (csilvers) + * New PC-detection routine for ibook powerpc (asbestoshead) + * Vastly improved tcmalloc unittest (csilvers) + * Move documentation from /usr/doc to /usr/share/doc + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@19 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M configure +M configure.ac +M packages/rpm/rpm.spec +M src/base/thread_lister.c +M src/config.h.in +M src/heap-checker.cc +M src/heap-profiler.cc +M src/malloc_extension.cc +M src/pprof +M src/profiler.cc +M src/stacktrace.cc +C065 src/tests/tcmalloc_unittest.cc src/stacktrace_generic-inl.h +C064 src/tests/tcmalloc_unittest.cc src/stacktrace_libunwind-inl.h +C068 src/stacktrace.cc src/stacktrace_x86-inl.h +A src/stacktrace_x86_64-inl.h +M src/tcmalloc.cc +M src/tests/stacktrace_unittest.cc +M src/tests/tcmalloc_unittest.cc + +commit 298274f8d4f474d2b16a35c8babc58817088c59e +Author: csilvers +Date: Thu Mar 22 04:45:23 2007 +0000 + + Mon Nov 14 17:28:59 2005 Google Inc. + + * google-perftools: version 0.5 release + * Add va_start/va_end calls around vsnprintf() (csilvers) + * Write our own __syscall_return(), since it's not defined + consistently on all 64-bit linux distros (markus) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@17 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M src/base/linux_syscall_support.h +M src/base/logging.h +M src/config.h.in + +commit ee5805f1296f8546c16f90d5427efa347a5f7338 +Author: csilvers +Date: Thu Mar 22 04:44:18 2007 +0000 + + Wed Oct 26 15:19:16 2005 Google Inc. + + * Decrease fragmentation in tcmalloc (lefevere) + * Support for ARM in some of the thread-specific code (markus) + * Turn off heap-checker for statically-linked binaries, which + cause error leak reports now (etune) + * Many pprof improvements, including a command-line interface + (jeff) + * CPU profiling now automatically affects all threads in + linux 2.6. + (Kernel bugs break CPU profiling and threads in linux 2.4 + a bit.) + ProfilerEnable() and ProfilerDisable() are deprecated. + (sanjay) + * tcmalloc now correctly intercepts memalign (m3b, maxim) + * Syntax fix: added missing va_end()s. Helps non-gcc + compiling (etune) + * Fixed a few coredumper bugs: race condition after + PTRACE_DETACH, + ignore non-aligned stackframe pointers (markus, menage) + * 64-bit cleanup, especially for spinlock code (etune) + and mmap (sanjay) + * Better support for finding threads in linux (markus) + * tcmalloc now tracks those stack traces that allocate memory + (sanjay) + * Work around a weird setspecific problem (sanjay) + * Fix tcmalloc overflow problems when an alloc is close to + 2G/4G (sanjay) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@15 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M aclocal.m4 +M configure +M configure.ac +M doc/cpu_profiler.html +D src/base/elfcore.c +M src/base/elfcore.h +A src/base/linux_syscall_support.h +M src/base/linuxthreads.c +M src/base/linuxthreads.h +M src/base/thread_lister.c +M src/base/thread_lister.h +M src/google/heap-checker.h +M src/google/malloc_extension.h +M src/google/profiler.h +M src/heap-checker.cc +M src/heap-profiler.cc +M src/internal_logging.cc +M src/internal_spinlock.h +M src/malloc_extension.cc +M src/malloc_hook.cc +M src/pagemap.h +M src/pprof +M src/profiler.cc +M src/stacktrace.cc +M src/system-alloc.cc +M src/tcmalloc.cc +A src/tests/tcmalloc_large_unittest.cc +M src/tests/tcmalloc_unittest.cc + +commit bc455d7b63949fab94ed9518d277866e95f08768 +Author: csilvers +Date: Thu Mar 22 04:42:30 2007 +0000 + + Fri Jun 24 18:02:26 2005 Google Inc. + + * Add missing errno include for one of the unittests + (csilvers) + * Reduce tcmalloc startup memory from 5M to 256K (sanjay) + * Add support for mallopt() and mallinfo (sanjay) + * Improve stacktrace's performance on some 64-bit systems + (etune) + * Improve the stacktrace unittest (etune) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@13 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M configure +M configure.ac +M src/pagemap.h +M src/stacktrace.cc +M src/tcmalloc.cc +M src/tests/heap-checker_unittest.cc +M src/tests/stacktrace_unittest.cc + +commit 91fad389784766782263133c5510976a8f76d89e +Author: csilvers +Date: Thu Mar 22 03:28:56 2007 +0000 + + Tue May 31 08:14:38 2005 Google Inc. + + * google-perftools: version 0.2 release + * Use mmap2() instead of mmap(), to map more memory (menage) + * Do correct pthread-local checking in heap-checker! (maxim) + * Avoid overflow on 64-bit machines in pprof (sanjay) + * Add a few more GetPC() functions, including for AMD + (csilvers) + * Better method for overriding pthread functions (menage) + * (Hacky) fix to avoid overwriting profile files after fork() + (csilvers) + * Crashing bugfix involving dumping heaps on small-stack + threads (tudor) + * Allow library versions with letters at the end (csilvers) + * Config fixes for systems that don't define PATH_MAX + (csilvers) + * Confix fixes so we no longer need config.h after install + (csilvers) + * Fix to pprof to correctly read very big cpu profiles + (csilvers) + * Fix to pprof to deal with new commandline flags in + modern gv's + * Better error reporting when we can't access /proc/maps + (etune) + * Get rid of the libc-preallocate code (which could crash + on some + systems); no longer needed with local-threads fix (csilvers) + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@11 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +M ChangeLog +M Makefile.am +M README +M TODO +M configure +M configure.ac +M doc/cpu_profiler.html +A doc/heap_checker.html +M doc/heap_profiler.html +A doc/index.html +A doc/t-test1.times.txt +A doc/tcmalloc-opspercpusec.vs.threads.1024.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.128.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.131072.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.16384.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.2048.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.256.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.32768.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.4096.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.512.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.64.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.65536.bytes.png +A doc/tcmalloc-opspercpusec.vs.threads.8192.bytes.png +A doc/tcmalloc-opspersec.vs.size.1.threads.png +A doc/tcmalloc-opspersec.vs.size.12.threads.png +A doc/tcmalloc-opspersec.vs.size.16.threads.png +A doc/tcmalloc-opspersec.vs.size.2.threads.png +A doc/tcmalloc-opspersec.vs.size.20.threads.png +A doc/tcmalloc-opspersec.vs.size.3.threads.png +A doc/tcmalloc-opspersec.vs.size.4.threads.png +A doc/tcmalloc-opspersec.vs.size.5.threads.png +A doc/tcmalloc-opspersec.vs.size.8.threads.png +M doc/tcmalloc.html +M packages/deb/changelog +M packages/deb/control +M packages/deb/copyright +D packages/deb/files +M packages/deb/libgoogle-perftools-dev.install +M packages/deb/libgoogle-perftools0.install +M packages/rpm.sh +M packages/rpm/rpm.spec +M src/addressmap-inl.h +R099 src/google/perftools/basictypes.h src/base/basictypes.h +M src/base/commandlineflags.h +A src/base/elfcore.c +A src/base/elfcore.h +A src/base/linuxthreads.c +A src/base/linuxthreads.h +A src/base/thread_lister.c +A src/base/thread_lister.h +M src/google/heap-checker.h +M src/google/heap-profiler.h +R088 src/google/malloc_interface.h src/google/malloc_extension.h +M src/google/malloc_hook.h +D src/google/perftools/config.h.in +M src/google/stacktrace.h +M src/heap-checker-bcad.cc +M src/heap-checker.cc +M src/heap-profiler-inl.h +M src/heap-profiler.cc +M src/internal_logging.h +M src/internal_spinlock.h +R068 src/malloc_interface.cc src/malloc_extension.cc +M src/malloc_hook.cc +A src/maybe_threads.cc +C070 src/tests/tcmalloc_unittest.cc src/maybe_threads.h +M src/pagemap.h +M src/pprof +M src/profiler.cc +M src/stacktrace.cc +M src/system-alloc.cc +M src/tcmalloc.cc +M src/tests/addressmap_unittest.cc +M src/tests/heap-checker-death_unittest.sh +M src/tests/heap-checker_unittest.cc +C051 src/tests/heap-checker-death_unittest.sh +src/tests/heap-checker_unittest.sh +A src/tests/heap-profiler_unittest.cc +A src/tests/heap-profiler_unittest.sh +M src/tests/profiler_unittest.cc +M src/tests/profiler_unittest.sh +M src/tests/stacktrace_unittest.cc +M src/tests/tcmalloc_unittest.cc + +commit 51b4875f8ade3e0930eed2dc2a842ec607a94a2c +Author: csilvers +Date: Thu Mar 22 03:00:33 2007 +0000 + + Tue Feb 8 09:57:17 2005 El Goog + + * google-perftools: initial release: + The google-perftools package contains some utilities + to improve + and analyze the performance of C++ programs. This includes + an + optimized thread-caching malloc() and cpu and heap profiling + utilities. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@9 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +A AUTHORS +A COPYING +A ChangeLog +A INSTALL +A Makefile.am +A Makefile.in +A NEWS +A README +A TODO +A aclocal.m4 +A compile +A config.guess +A config.sub +A configure +A configure.ac +A depcomp +A doc/cpu_profiler.html +A doc/heap-example1.png +A doc/heap_profiler.html +A doc/overview.dot +A doc/overview.gif +A doc/pageheap.dot +A doc/pageheap.gif +A doc/pprof-test-big.gif +A doc/pprof-test.gif +A doc/pprof-vsnprintf-big.gif +A doc/pprof-vsnprintf.gif +A doc/pprof.1 +A doc/pprof.see_also +A doc/spanmap.dot +A doc/spanmap.gif +A doc/tcmalloc.html +A doc/threadheap.dot +A doc/threadheap.gif +A install-sh +A ltmain.sh +A missing +A mkinstalldirs +A packages/deb.sh +A packages/deb/README +A packages/deb/changelog +A packages/deb/compat +A packages/deb/control +A packages/deb/copyright +A packages/deb/files +A packages/deb/libgoogle-perftools-dev.dirs +A packages/deb/libgoogle-perftools-dev.install +A packages/deb/libgoogle-perftools0.dirs +A packages/deb/libgoogle-perftools0.install +A packages/deb/libgoogle-perftools0.manpages +A packages/deb/rules +A packages/rpm.sh +A packages/rpm/rpm.spec +A src/addressmap-inl.h +A src/base/commandlineflags.h +A src/base/googleinit.h +A src/base/logging.h +A src/config.h.in +A src/google/heap-checker.h +A src/google/heap-profiler.h +A src/google/malloc_hook.h +A src/google/malloc_interface.h +A src/google/perftools/basictypes.h +A src/google/perftools/config.h.in +A src/google/profiler.h +A src/google/stacktrace.h +A src/heap-checker-bcad.cc +A src/heap-checker.cc +A src/heap-profiler-inl.h +A src/heap-profiler.cc +A src/internal_logging.cc +A src/internal_logging.h +A src/internal_spinlock.h +A src/malloc_hook.cc +A src/malloc_interface.cc +A src/pagemap.h +A src/pprof +A src/profiler.cc +A src/stacktrace.cc +A src/system-alloc.cc +A src/system-alloc.h +A src/tcmalloc.cc +A src/tests/addressmap_unittest.cc +A src/tests/heap-checker-death_unittest.sh +A src/tests/heap-checker_unittest.cc +A src/tests/profiler_unittest.cc +A src/tests/profiler_unittest.sh +A src/tests/ptmalloc/COPYRIGHT +A src/tests/ptmalloc/lran2.h +A src/tests/ptmalloc/malloc-machine.h +A src/tests/ptmalloc/t-test.h +A src/tests/ptmalloc/t-test1.c +A src/tests/ptmalloc/t-test2.c +A src/tests/ptmalloc/thread-m.h +A src/tests/ptmalloc/thread-st.h +A src/tests/stacktrace_unittest.cc +A src/tests/tcmalloc_unittest.cc + +commit e3a8513447d1141f083d4aaced0b240a6e161f47 +Author: trowbridge.jon + +Date: Thu Dec 28 22:53:59 2006 +0000 + + Set page mime-type to text/html. + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@5 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +commit 66737d1c2519e4a1622f61139bfe2f683ea3696c +Author: trowbridge.jon + +Date: Thu Dec 28 22:39:33 2006 +0000 + + Import of HTML documentation from SourceForge. + + + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@3 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 + +A docs/html/cpu_profiler.html +A docs/html/heap_checker.html +A docs/html/heap_profiler.html +A docs/html/tcmalloc.html +A docs/images/heap-example1.png +A docs/images/overview.gif +A docs/images/pageheap.gif +A docs/images/pprof-test.gif +A docs/images/pprof-vsnprintf.gif +A docs/images/spanmap.gif +A docs/images/tcmalloc-opspercpusec.png +A docs/images/tcmalloc-opspercpusec_002.png +A docs/images/tcmalloc-opspercpusec_003.png +A docs/images/tcmalloc-opspercpusec_004.png +A docs/images/tcmalloc-opspercpusec_005.png +A docs/images/tcmalloc-opspercpusec_006.png +A docs/images/tcmalloc-opspercpusec_007.png +A docs/images/tcmalloc-opspercpusec_008.png +A docs/images/tcmalloc-opspercpusec_009.png +A docs/images/tcmalloc-opspersec.png +A docs/images/tcmalloc-opspersec_002.png +A docs/images/tcmalloc-opspersec_003.png +A docs/images/tcmalloc-opspersec_004.png +A docs/images/tcmalloc-opspersec_005.png +A docs/images/tcmalloc-opspersec_006.png +A docs/images/tcmalloc-opspersec_007.png +A docs/images/tcmalloc-opspersec_008.png +A docs/images/tcmalloc-opspersec_009.png +A docs/images/threadheap.gif + +commit 55d679a05f0518ea73a4bca6e8b71b54fcecf68f +Author: (no author) <(no author)@6b5cf1ce-ec42-a296-1ba9-69fdba395a50> +Date: Thu Jul 27 00:57:14 2006 +0000 + + Initial directory structure. + + git-svn-id: http://gperftools.googlecode.com/svn/trunk@1 + 6b5cf1ce-ec42-a296-1ba9-69fdba395a50 diff --git a/trunk/3rdparty/gperftools-2-fit/ChangeLog.old b/trunk/3rdparty/gperftools-2-fit/ChangeLog.old new file mode 100644 index 000000000..4b334beaa --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/ChangeLog.old @@ -0,0 +1,646 @@ +Fri Feb 03 15:40:45 2012 Google Inc. + + * gperftools: version 2.0 + * Renamed the project from google-perftools to gperftools (csilvers) + * Renamed the .deb/.rpm packagse from google-perftools to gperftools too + * Renamed include directory from google/ to gperftools/ (csilvers) + * Changed the 'official' perftools email in setup.py/etc + * Renamed google-perftools.sln to gperftools.sln + * PORTING: Removed bash-isms & grep -q in heap-checker-death_unittest.sh + * Changed copyright text to reflect Google's relinquished ownership + +Tue Jan 31 10:43:50 2012 Google Inc. + + * google-perftools: version 1.10 release + * PORTING: Support for patching assembly on win x86_64! (scott.fr...) + * PORTING: Work around atexit-execution-order bug on freebsd (csilvers) + * PORTING: Patch _calloc_crt for windows (roger orr) + * PORTING: Add C++11 compatibility method for stl allocator (jdennett) + * PORTING: use MADV_FREE, not MADV_DONTNEED, on freebsd (csilvers) + * PORTING: Don't use SYS_open when not supported on solaris (csilvers) + * PORTING: Do not assume uname() returns 0 on success (csilvers) + * LSS: Improved ARM support in linux-syscall-support (dougkwan) + * LSS: Get rid of unused syscalls in linux-syscall-support (csilvers) + * LSS: Fix broken mmap wrapping for ppc (markus) + * LSS: Emit .cfi_adjust_cfa_offset when appropriate (ppluzhnikov) + * LSS: Be more accurate in register use in __asm__ (markus) + * LSS: Fix __asm__ calls to compile under clang (chandlerc) + * LSS: Fix ARM inline assembly bug around r7 and swi (lcwu) + * No longer log when an allocator fails (csilvers) + * void* -> const void* for MallocExtension methods (llib) + * Improve HEAP_PROFILE_MMAP and fix bugs with it (dmikurube) + * Replace int-based abs with more correct fabs in a test (pmurin) + +Thu Dec 22 16:22:45 2011 Google Inc. + + * google-perftools: version 1.9 release + * Lightweight check for double-frees (blount) + * BUGFIX: Fix pprof to exit properly if run with no args (dagitses) + * Suggest ASan as a way to diagnose buggy code (ppluzhnikov) + * Get rid of unused CACHELINE_SIZE (csilvers) + * Replace atexit() calls with global dtors; helps freebsd (csilvers) + * Disable heap-checker under AddressSanitizer (kcc) + * Fix bug in powerpc stacktracing (ppluzhnikov) + * PERF: Use exponential backoff waiting for spinlocks (m3b) + * Fix 64-bit nm on 32-bit binaries in pprof (csilvers) + * Add ProfileHandlerDisallowForever (rsc) + * BUGFIX: Shell escape when forking in pprof (csilvers) + * No longer combine overloaded functions in pprof (csilvers) + * Fix address-normalizing bug in pprof (csilvers) + * More consistently call abort() instead of exit() on failure (csilvers) + * Allow NoGlobalLeaks to be safely called more than once (csilvers) + * PORTING/BUGFIX: Fix ARM cycleclock to use volatile asm (dougkwan) + * PORTING: 64-bit atomic ops for ARMv7 (dougkwan) + * PORTING: Implement stacktrace for ARM (dougkwan) + * PORTING: Fix malloc_hook_mmap_linux for ARM (dougkwan) + * PORTING: Update linux_syscall_support.h for ARM/etc (evannier, sanek) + * PORTING: Fix freebsd to work on x86_64 (chapp...@gmail.com) + * PORTING: Added additional SYS_mmap fixes for FreeBSD (chappedm) + * PORTING: Allow us to compile on OS X 10.6 and run on 10.5 (raltherr) + * PORTING: Check for mingw compilers that *do* define timespec + * PORTING: Add "support" for MIPS cycletimer + * PORTING: Fix fallback cycle-timer to work with Now (dougkwan) + * PERF: Move stack trace collecting out of the mutex (taylorc) + * PERF: Get the deallocation stack trace outside the mutex (sean) + * Make PageHeap dynamically allocated for leak checks (maxim) + * BUGFIX: Fix probing of nm -f behavior in pprof (dpeng) + * BUGFIX: Fix a race with the CentralFreeList lock before main (sanjay) + * Support /pprof/censusprofile url arguments (rajatjain) + * Change IgnoreObject to return its argument (nlewycky) + * Update malloc-hook files to support more CPUs + * BUGFIX: write our own strstr to avoid libc problems (csilvers) + * Use simple callgrind compression facility in pprof + * Print an error message when we can't run pprof to symbolize (csilvers) + * Die in configure when g++ is't installed (csilvers) + * DOC: Beef up the documentation a bit about using libunwind (csilvers) + +Fri Aug 26 13:29:25 2011 Google Inc. + + * google-perftools: version 1.8.3 release + * Added back the 'pthreads unsafe early' #define, needed for FreeBSD + +Thu Aug 11 15:01:47 2011 Google Inc. + + * google-perftools: version 1.8.2 release + * Fixed calculation of patchlevel, 'make check' should all pass again + +Tue Jul 26 20:57:51 2011 Google Inc. + + * google-perftools: version 1.8.1 release + * Added an #include to fix compile breakage on latest gcc's + * Removed an extra , in the configure.ac script + +Fri Jul 15 16:10:51 2011 Google Inc. + + * google-perftools: version 1.8 release + * PORTING: (Disabled) support for patching mmap on freebsd (chapp...) + * PORTING: Support volatile __malloc_hook for glibc 2.14 (csilvers) + * PORTING: Use _asm rdtsc and __rdtsc to get cycleclock in windows (koda) + * PORTING: Fix fd vs. HANDLE compiler error on cygwin (csilvers) + * PORTING: Do not test memalign or double-linking on OS X (csilvers) + * PORTING: Actually enable TLS on windows (jontra) + * PORTING: Some work to compile under Native Client (krasin) + * PORTING: deal with pthread_once w/o -pthread on freebsd (csilvers) + * Rearrange libc-overriding to make it easier to port (csilvers) + * Display source locations in pprof disassembly (sanjay) + * BUGFIX: Actually initialize allocator name (mec) + * BUGFIX: Keep track of 'overhead' bytes in malloc reporting (csilvers) + * Allow ignoring one object twice in the leak checker (glider) + * BUGFIX: top10 in pprof should print 10 lines, not 11 (rsc) + * Refactor vdso source files (tipp) + * Some documentation cleanups + * Document MAX_TOTAL_THREAD_CACHE_SIZE <= 1Gb (nsethi) + * Add MallocExtension::GetOwnership(ptr) (csilvers) + * BUGFIX: We were leaving out a needed $(top_srcdir) in the Makefile + * PORTING: Support getting argv0 on OS X + * Add 'weblist' command to pprof: like 'list' but html (sanjay) + * Improve source listing in pprof (sanjay) + * Cap cache sizes to reduce fragmentation (ruemmler) + * Improve performance by capping or increasing sizes (ruemmler) + * Add M{,un}mapReplacmenet hooks into MallocHook (ribrdb) + * Refactored system allocator logic (gangren) + * Include cleanups (csilvers) + * Add TCMALLOC_SMALL_BUT_SLOW support (ruemmler) + * Clarify that tcmalloc stats are MiB (robinson) + * Remove support for non-tcmalloc debugallocation (blount) + * Add a new test: malloc_hook_test (csilvers) + * Change the configure script to be more crosstool-friendly (mcgrathr) + * PORTING: leading-underscore changes to support win64 (csilvers) + * Improve debugallocation tc_malloc_size (csilvers) + * Extend atomicops.h and cyceclock to use ARM V6+ optimized code (sanek) + * Change malloc-hook to use a list-like structure (llib) + * Add flag to use MAP_PRIVATE in memfs_malloc (gangren) + * Windows support for pprof: nul and /usr/bin/file (csilvers) + * TESTING: add test on strdup to tcmalloc_test (csilvers) + * Augment heap-checker to deal with no-inode maps (csilvers) + * Count .dll/.dylib as shared libs in heap-checker (csilvers) + * Disable sys_futex for arm; it's not always reliable (sanek) + * PORTING: change lots of windows/port.h macros to functions + * BUGFIX: Generate correct version# in tcmalloc.h on windows (csilvers) + * PORTING: Some casting to make solaris happier about types (csilvers) + * TESTING: Disable debugallocation_test in 'minimal' mode (csilvers) + * Rewrite debugallocation to be more modular (csilvers) + * Don't try to run the heap-checker under valgrind (ppluzhnikov) + * BUGFIX: Make focused stat %'s relative, not absolute (sanjay) + * BUGFIX: Don't use '//' comments in a C file (csilvers) + * Quiet new-gcc compiler warnings via -Wno-unused-result, etc (csilvers) + +Fri Feb 04 15:54:31 2011 Google Inc. + + * google-perftools: version 1.7 release + * Reduce page map key size under x86_64 by 4.4MB (rus) + * Remove a flaky malloc-extension test (fdabek) + * Improve the performance of PageHeap::New (ond..., csilvers) + * Improve sampling_test with no-inline additions/etc (fdabek) + * 16-byte align debug allocs (jyasskin) + * Change FillProcSelfMaps to detect out-of-buffer-space (csilvers) + * Document the need for sampling to use GetHeapSample (csilvers) + * Try to read TSC frequency from tsc_freq_khs (adurbin) + * Do better at figuring out if tests are running under gdb (ppluzhnikov) + * Improve spinlock contention performance (ruemmler) + * Better internal-function list for pprof's /contention (ruemmler) + * Speed up GoogleOnce (m3b) + * Limit number of incoming/outgoing edges in pprof (sanjay) + * Add pprof --evince to go along with --gv (csilvers) + * Document the various ways to get heap-profiling information (csilvers) + * Separate out synchronization profiling routines (ruemmler) + * Improve malloc-stats output to be more understandable (csilvers) + * Add support for census profiler in pporf (nabeelmian) + * Document how pprof's /symbol must support GET requests (csilvers) + * Improve acx_pthread.m4 (ssuomi, liujisi) + * Speed up pprof's ExtractSymbols (csilvers) + * Ignore some known-leaky (java) libraries in the heap checker (davidyu) + * Make kHideMask use all 64 bits in tests (ppluzhnikov) + * Clean up pprof input-file handling (csilvers) + * BUGFIX: Don't crash if __environ is NULL (csilvers) + * BUGFIX: Fix totally broken debugallocation tests (csilvers) + * BUGFIX: Fix up fake_VDSO handling for unittest (ppluzhnikov) + * BUGFIX: Suppress all large allocs when report threshold is 0 (lexie) + * BUGFIX: mmap2 on i386 takes an off_t, not off64_t (csilvers) + * PORTING: Add missing PERFTOOLS_DLL_DECL (csilvers) + * PORTING: Add stddef.h to make newer gcc's happy (csilvers) + * PORTING: Document some tricks for working under OS X (csilvers) + * PORTING: Don't try to check valgrind for windows (csilvers) + * PORTING: Make array-size a var to compile under clang (chandlerc) + * PORTING: No longer hook _aligned_malloc and _aligned_free (csilvers) + * PORTING: Quiet some gcc warnings (csilvers) + * PORTING: Replace %PRIxPTR with %p to be more portable (csilvers) + * PORTING: Support systems that capitalize /proc weirdly (sanek) + * PORTING: Treat arm3 the same as arm5t in cycletimer (csilvers) + * PORTING: Update windows logging to not allocate memory (csilvers) + * PORTING: avoid double-patching newer windows DLLs (roger.orr) + * PORTING: get dynamic_annotations.c to work on windows (csilvers) + * Add pkg-config .pc files for the 5 libraries we produce (csilvers) + * Added proper libtool versioning, so this lib will be 0.1.0 (csilvers) + * Moved from autoconf 2.64 to 2.65 + +Thu Aug 5 12:48:03 PDT 2010 Google Inc. + + * google-perftools: version 1.6 release + * Add tc_malloc_usable_size for compatibility with glibc (csilvers) + * Override malloc_usable_size with tc_malloc_usable_size (csilvers) + * Default to no automatic heap sampling in tcmalloc (csilvers) + * Add -DTCMALLOC_LARGE_PAGES, a possibly faster tcmalloc (rus) + * Make some functions extern "C" to avoid false ODR warnings (jyasskin) + * pprof: Add SVG-based output (rsc) + * pprof: Extend pprof --tools to allow per-tool configs (csilvers) + * pprof: Improve support of 64-bit and big-endian profiles (csilvers) + * pprof: Add interactive callgrind suport (weidenri...) + * pprof: Improve address->function mapping a bit (dpeng) + * Better detection of when we're running under valgrind (csilvers) + * Better CPU-speed detection under valgrind (saito) + * Use, and recommend, -fno-builtin-malloc when compiling (csilvers) + * Avoid false-sharing of memory between caches (bmaurer) + * BUGFIX: Fix heap sampling to use correct alloc size (bmauer) + * BUGFIX: Avoid gcc 4.0.x bug by making hook-clearing atomic (csilvers) + * BUGFIX: Avoid gcc 4.5.x optimization bug (csilvers) + * BUGFIX: Work around deps-determining bug in libtool 1.5.26 (csilvers) + * BUGFIX: Fixed test to use HAVE_PTHREAD, not HAVE_PTHREADS (csilvers) + * BUGFIX: Fix tls callback behavior on windows when using wpo (wtc) + * BUGFIX: properly align allocation sizes on Windows (antonm) + * BUGFIX: Fix prototypes for tcmalloc/debugalloc wrt throw() (csilvers) + * DOC: Updated heap-checker doc to match reality better (fischman) + * DOC: Document ProfilerFlush, ProfilerStartWithOptions (csilvers) + * DOC: Update docs for heap-profiler functions (csilvers) + * DOC: Clean up documentation around tcmalloc.slack_bytes (fikes) + * DOC: Renamed README.windows to README_windows.txt (csilvers) + * DOC: Update the NEWS file to be non-empty (csilvers) + * PORTING: Fix windows addr2line and nm with proper rc code (csilvers) + * PORTING: Add CycleClock and atomicops support for arm 5 (sanek) + * PORTING: Improve PC finding on cygwin and redhat 7 (csilvers) + * PORTING: speed up function-patching under windows (csilvers) + +Tue Jan 19 14:46:12 2010 Google Inc. + + * google-perftools: version 1.5 release + * Add tc_set_new_mode (willchan) + * Make memalign functions + realloc respect tc_set_new_mode (willchan) + * Add ReleaseToSystem(num_bytes) (kash) + * Handle zero-length symbols a bit better in pprof (csilvers) + * Prefer __environ to /proc/self/environ in cpu profiler (csilvers) + * Add HEAP_CHECK_MAX_LEAKS flag to control #leaks to report (glider) + * Add two new numeric pageheap properties to MallocExtension (fikes) + * Print alloc size when mmap fails (hakon) + * Add ITIMER_REAL support to cpu profiler (csilvers, nabeelmian) + * Speed up symbolizer in heap-checker reporting (glider) + * Speed up futexes with FUTEX_PRIVATE_FLAG (m3b) + * Speed up tcmalloc but doing better span coalescing (sanjay) + * Better support for different wget's and addr2maps in pprof (csilvres) + * Implement a nothrow version of delete and delete[] (csilvers) + * BUGFIX: fix a race on module_libcs[i] in windows patching (csilvers) + * BUGFIX: Fix debugallocation to call cpp_alloc for new (willchan) + * BUGFIX: A simple bugfix for --raw mode (mrabkin) + * BUGFIX: Fix C shims to actually be valid C (csilvers) + * BUGFIX: Fix recursively-unmapped-region accounting (ppluzhnikov) + * BUGFIX: better distinguish real and fake vdso (ppluzhnikov) + * WINDOWS: replace debugmodule with more reliable psai (andrey) + * PORTING: Add .bundle as another shared library extension (csilvers) + * PORTING: Fixed a typo bug in the ocnfigure PRIxx m4 macro (csilvers) + * PORTING: Augment sysinfo to work on 64-bit OS X (csilvers) + * PORTING: Use sys/ucontext.h to fix compiing on OS X 10.6 (csilvers) + * PORTING: Fix sysinfo libname reporting for solaris x86 (jeffrey) + * PORTING: Use libunwind for i386 when using --omitfp (ppluzhnikov) + +Thu Sep 10 13:51:15 2009 Google Inc. + + * google-perftools: version 1.4 release + * Add debugallocation library, to catch memory leaks, stomping, etc + * Add --raw mode to allow for delayed processing of pprof files + * Use less memory when reading CPU profiles + * New environment variables to control kernel-allocs (sbrk, memfs, etc) + * Add MarkThreadBusy(): performance improvement + * Remove static thread-cache-size code; all is dynamic now + * Add new HiddenPointer class to heap checker + * BUGFIX: pvalloc(0) allocates now (found by new debugalloc library) + * BUGFIX: valloc test (not implementation) no longer overruns memory + * BUGFIX: GetHeapProfile no longer deadlocks + * BUGFIX: Support unmapping memory regions before main + * BUGFIX: Fix some malloc-stats formatting + * BUGFIX: Don't crash as often when freeing libc-allocated memory + * BUGFIX: Deal better with incorrect PPROF_PATH when symbolizing + * BUGFIX: weaken new/delete/etc in addition to malloc/free/etc + * BUGFIX: Fix return value of GetAllocatedSize + * PORTING: Fix mmap-#define problem on some 64-bit systems + * PORTING: Call ranlib again (some OS X versions need it) + * PORTING: Fix a leak when building with LLVM + * PORTING: Remove some unneeded bash-ishs from testing scripts + * WINDOWS: Support library unloading as well as loading + * WINDOWS/BUGFIX: Set page to 'xrw' instead of 'rw' when patching + +Tue Jun 9 18:19:06 2009 Google Inc. + + * google-perftools: version 1.3 release + * Provide our own name for memory functions: tc_malloc, etc (csilvers) + * Weaken memory-alloc functions so user can override them (csilvers) + * Remove meaningless delete(nothrow) and delete[](nothrow) (csilvers) + * BUILD: replace clever libtcmalloc/profiler.a with a new .a (csilvers) + * PORTING: improve windows port by using google spinlocks (csilvers) + * PORTING: Fix RedHat 9 memory allocation in heapchecker (csilvers) + * PORTING: Rename OS_WINDOWS macro to PLATFORM_WINDOWS (mbelshe) + * PORTING/BUGFIX: Make sure we don't clobber GetLastError (mbelshe) + * BUGFIX: get rid of useless data for callgrind (weidenrinde) + * BUGFIX: Modify windows patching to deadlock sometimes (csilvers) + * BUGFIX: an improved fix for hook handling during fork (csilvers) + * BUGFIX: revamp profiler_unittest.sh, which was very broken (csilvers) + +Fri Apr 17 16:40:48 2009 Google Inc. + + * google-perftools: version 1.2 release + * Allow large_alloc_threshold=0 to turn it off entirely (csilvers) + * Die more helpfully when out of memory for internal data (csilvers) + * Refactor profile-data gathering, add a new unittest (cgd, nabeelmian) + * BUGFIX: fix rounding errors with static thread-size caches (addi) + * BUGFIX: disable hooks better when forking in leak-checker (csilvers) + * BUGFIX: fix realloc of crt pointers on windows (csilvers) + * BUGFIX: do a better job of finding binaries in .sh tests (csilvers) + * WINDOWS: allow overriding malloc/etc instead of patching (mbelshe) + * PORTING: fix compilation error in a ppc-specific file (csilvers) + * PORTING: deal with quirks in cygwin's /proc/self/maps (csilvers) + * PORTING: use 'A' version of functions for ascii input (mbelshe) + * PORTING: generate .so's on cygwin and mingw (ajenjo) + * PORTING: disable profiler methods on cygwin (jperkins) + * Updated autoconf version to 2.61 and libtool version to 1.5.26 + +Wed Mar 11 11:25:34 2009 Google Inc. + + * google-perftools: version 1.1 release + * Dynamically resize thread caches -- nice perf. improvement (kash) + * Add VDSO support to give better stacktraces in linux (ppluzhnikov) + * Improve heap-profiling sampling algorithm (ford) + * Rewrite leak-checking code: should be faster and more robust (sanjay) + * Use ps2 instead of ps for dot: better page cropping for gv (csilvers) + * Disable malloc-failure warning messages by default (csilvers) + * Update config/Makefile to disable tests on a per-OS basis (csilvers) + * PORTING: Get perftools compiling under MSVC 7.1 again (csilvers) + * PORTING: Get perftools compiling under cygwin again (csilvers) + * PORTING: automatically set library flags for solaris x86 (csilvers) + * Add TCMALLOC_SKIP_SBRK to mirror TCMALLOC_SKIP_MMAP (csilvers) + * Add --enable flags to allow selective building (csilvers) + * Put addr2line-pdb and nm-pdb in proper output directory (csilvers) + * Remove deprecated DisableChecksIn (sanjay) + * DOCUMENTATION: Document most MallocExtension routines (csilvers) + +Tue Jan 6 13:58:56 2009 Google Inc. + + * google-perftools: version 1.0 release + * Exactly the same as 1.0rc2 + +Sun Dec 14 17:10:35 2008 Google Inc. + + * google-perftools: version 1.0rc2 release + * Fix compile error on 64-bit systems (casting ptr to int) (csilvers) + +Thu Dec 11 16:01:32 2008 Google Inc. + + * google-perftools: version 1.0rc1 release + * Replace API for selectively disabling heap-checker in code (sanjay) + * Add a pre-mmap hook (daven, adlr) + * Add MallocExtension interface to set memory-releasing rate (fikes) + * Augment pprof to allow any string ending in /pprof/profile (csilvers) + * PORTING: Rewrite -- and fix -- malloc patching for windows (dvitek) + * PORTING: Add nm-pdb and addr2line-pdb for use by pprof (dvitek) + * PORTING: Improve cygwin and mingw support (jperkins, csilvers) + * PORTING: Fix pprof for mac os x, other pprof improvements (csilvers) + * PORTING: Fix some PPC bugs in our locking code (anton.blanchard) + * A new unittest, smapling_test, to verify tcmalloc-profiles (csilvers) + * Turn off TLS for gcc < 4.1.2, due to a TLS + -fPIC bug (csilvers) + * Prefer __builtin_frame_address to assembly for stacktraces (nlewycky) + * Separate tcmalloc.cc out into multiple files -- finally! (kash) + * Make our locking code work with -fPIC on 32-bit x86 (aruns) + * Fix an initialization-ordering bug for tcmalloc/profiling (csilvers) + * Use "initial exec" model of TLS to speed up tcmalloc (csilvers) + * Enforce 16-byte alignment for tcmalloc, for SSE (sanjay) + +Tue Sep 23 08:56:31 2008 Google Inc. + + * google-perftools: version 0.99.2 release + * COMPILE FIX: add #include needed for FreeBSD and OS X (csilvers) + +Sat Sep 20 09:37:18 2008 Google Inc. + + * google-perftools: version 0.99.1 release + * BUG FIX: look for nm, etc in /usr/bin, not /usr/crosstool (csilvers) + +Thu Sep 18 16:00:27 2008 Google Inc. + + * google-perftools: version 0.99 release + * Add IsHeapProfileRunning (csilvers) + * Add C shims for some of the C++ header files (csilvers) + * Fix heap profile file clean-up logic (maxim) + * Rename linuxthreads.c to .cc for better compiler support (csilvers) + * Add source info to disassembly in pprof (sanjay) + * Use open instead of fopen to avoid memory alloc (csilvers) + * Disable malloc extensions when running under valgrind (kcc) + * BUG FIX: Fix out-of-bound error by reordering a check (larryz) + * Add Options struct to ProfileData (cgd) + * Correct PC-handling of --base in pprof (csilvers) + * Handle 1 function occurring twice in an image (sanjay) + * Improve stack-data cleaning (maxim) + * Use 'struct Foo' to make header C compatible (csilvers) + * Add 'total' line to pprof --text (csilvers) + * Pre-allocate buffer for heap-profiler to avoid OOM errors (csilvers) + * Allow a few more env-settings to control tcmalloc (csilvers) + * Document some of the issues involving thread-local storage (csilvers) + * BUG FIX: Define strtoll and friends for windows (csilvers) + +Mon Jun 9 16:47:03 2008 Google Inc. + + * google-perftools: version 0.98 release + * Add ProfilerStartWithOptions() (cgd) + * Change tcmalloc_minimal to not do any stack-tracing at all (csilvers) + * Prefer mmap to sbrk for 64-buit debug mode (sanjay) + * Fix accounting for some tcmalloc stats (sanjay) + * Use setrlimit() to keep unittests from killing the machine (odo) + * Fix a bug when sbrk-ing near address 4G (csilvers) + * Make MallocHook thread-safe (jyasskin) + * Fix windows build for MemoryBarrier (jyasskin) + * Fix CPU-profiler docs to mention correct libs (csilvers) + * Fix for GetHeapProfile() when heap-profiling is off (maxim) + * Avoid realloc resizing ping-pongs using hysteresis (csilvers) + * Add --callgrind output support to pprof (klimek) + * Fix profiler.h and heap-profiler.h to be C-compatible (csilvers) + * Break malloc_hook.h into two parts to reduce dependencies (csilvers) + * Better handle systems that don't implement mmap (csilvers) + * PORTING: disable system_alloc_unittest for msvc (csilvers) + * PORTING: Makefile tweaks to build better on cygwin (csilvers) + +Mon Apr 21 15:20:52 2008 Google Inc. + + * google-perftools: version 0.97 release + * Refactor GetHeapProfile to avoid using malloc (maxim) + * Fix heap-checker and heap-profiler hook interactions (maxim) + * Fix a data race in MemoryRegionMap::Lock (jyasskin) + * Improve thread-safety of leak checker (maxim) + * Fix mmap profile to no longer deadlock (maxim) + * Fix rpm to have devel package depend on non-devel (csilvers) + * PORTING: Fix clock-speed detection for Mac OS X (csilvers) + +Tue Mar 18 14:30:44 2008 Google Inc. + + * google-perftools: version 0.96 release + * major atomicops rewrite; fixed atomic ops code for linux/ppc (vchen) + * nix the stacktrace library; now build structure is simpler (csilvers) + * Speed up heap-checker, and reduce extraneous logging (maxim) + * Improve itimer code for NPTL case (cgd) + * Add source code annotations for use by valgrind, etc (kcc) + * PORTING: Fix high resolution timers for Mac OS X (adlr) + +Tue Feb 19 12:01:31 2008 Google Inc. + + * google-perftools: version 0.95.1 release (bugfix release) + * x86_64 compile-fix: nix pread64 and pwrite64 (csilvers) + * more heap-checker debug logging (maxim) + * minor improvement to x86_64 CycleClock (gpike) + +Tue Feb 12 12:28:32 2008 Google Inc. + + * google-perftools: version 0.95 release + * Better -- not perfect -- support for linux-ppc (csilvers) + * Fix race condition in libunwind stacktrace (aruns) + * Speed up x86 spinlock locking (m3b) + * Improve heap-checker performance (maxim) + * Heap checker traverses more ptrs inside heap-alloced objects (maxim) + * Remove deprecated ProfilerThreadState function (cgd) + * Update libunwind documentation for statically linked binaries (aruns) + +Mon Dec 3 23:51:54 2007 Google Inc. + + * google-perftools: version 0.94.1 release (bugfix release) + * Fix missing #includes for x86_64 compile using libunwind (csilvers) + +Thu Nov 29 07:59:43 2007 Google Inc. + + * google-perftools: version 0.94 release + * PORTING: MinGW/Msys support -- runs same code as MSVC does (csilvers) + * PORTING: Add NumCPUs support for Mac OS X (csilvers) + * Work around a sscanf bug in glibc(?) (waldemar) + * Fix Windows MSVC bug triggered by thread deletion (csilvers) + * Fix bug that triggers in MSVC /O2: missing volatile (gpike) + * March-of-time support: quiet warnings/errors for gcc 4.2, OS X 10.5 + * Modify pprof so it works without nm: useful for windows (csilvers) + * pprof: Support filtering for CPU profiles (cgd) + * Bugfix: have realloc report to hooks in all situations (maxim) + * Speed improvement: replace slow memcpy with std::copy (soren) + * Speed: better iterator efficiency in RecordRegionRemoval (soren) + * Speed: minor speed improvements via better bitfield alignment (gpike) + * Documentation: add documentation of binary profile output (cgd) + +Fri Aug 17 12:32:56 2007 Google Inc. + + * google-perftools: version 0.93 release + * PORTING: everything compiles on Solaris, OS X, FreeBSD (see INSTALL) + * PORTING: cpu-profiler works on most platforms (much better GetPC()) + * PORTING: heap-profiler works on most platforms + * PORTING: improved windows support, including release builds + * No longer build or run ptmalloc tests by default + * Add support for using memfs filesystem to allocate memory in linux + * WINDOWS: give debug library and release library different names + +Tue Jul 17 22:26:27 2007 Google Inc. + + * google-perftools: version 0.92 release + * PERFORMANCE: use a packed cache to speed up tcmalloc + * PORTING: preliminary windows support! (see README.windows) + * PORTING: better support for solaris, OS X, FreeBSD (see INSTALL) + * Envvar support for running the heap-checker under gdb + * Add weak declarations to maybe_threads to fix no-pthreads compile bugs + * Some 64bit fixes, especially with pprof + * Better heap-checker support for some low-level allocations + * Fix bug where heap-profiles would sometimes get truncated + * New documentation about how to handle common heap leak situations + * Use computed includes for hash_map/set: easier config + * Added all used .m4 templates to the distribution + +Wed Apr 18 16:43:55 2007 Google Inc. + + * google-perftools: version 0.91 release + * Brown-paper-bag bugfix: compilation error on some x86-64 machines + +Fri Apr 13 14:50:51 2007 Google Inc. + + * google-perftools: version 0.90 release + * (As the version-number jump hints, this is a major new release: + almost every piece of functionality was rewritten. I can't do + justice to all the changes, but will concentrate on highlights.) + *** USER-VISIBLE CHANGES: + * Ability to "release" unused memory added to tcmalloc + * Exposed more tweaking knobs via environment variables (see docs) + * pprof tries harder to map addresses to functions + * tcmalloc_minimal compiles and runs on FreeBSD 6.0 and Solaris 10 + *** INTERNAL CHANGES: + * Much better 64-bit support + * Better multiple-processor support (e.g. multicore contention tweaks) + * Support for recent kernel ABI changes (e.g. new arg to mremap) + * Addition of spinlocks to tcmalloc to reduce contention cost + * Speed up tcmalloc by using __thread on systems that support TLS + * Total redesign of heap-checker to improve liveness checking + * More portable stack-frame analysis -- no more hard-coded constants! + * Disentangled heap-profiler code and heap-checker code + * Several new unittests to test, e.g., thread-contention costs + * Lots of small (but important!) bug fixes: e.g., fixing GetPC on amd64 + *** KNOWN PROBLEMS: + * CPU-profiling may crash on x86_64 (64-bit) systems. See the README + * Profiling/heap-checking may deadlock on x86_64 systems. See README + +Wed Jun 14 15:11:14 2006 Google Inc. + + * google-perftools: version 0.8 release + * Experimental support for remote profiling added to pprof (many) + * Fixed race condition in ProfileData::FlushTable (etune) + * Better support for weird /proc maps (maxim, mec) + * Fix heap-checker interaction with gdb (markus) + * Better 64-bit support in pprof (aruns) + * Reduce scavenging cost in tcmalloc by capping NumMoveSize (sanjay) + * Cast syscall(SYS_mmap); works on more 64-bit systems now (menage) + * Document the text output of pprof! (csilvers) + * Better compiler support for no-THREADS and for old compilers (csilvers) + * Make libunwind the default stack unwinder for x86-64 (aruns) + * Somehow the COPYING file got erased. Regenerate it (csilvers) + +Thu Apr 13 20:59:09 2006 Google Inc. + + * google-perftools: version 0.7 release + * Major rewrite of thread introspection for new kernels (markus) + * Major rewrite of heap-checker to use new thread tools (maxim) + * Add proper support for following data in thread registers (maxim) + * Syscall support for older kernels, including _syscall6 (markus) + * Support PIC mode (markus, mbland, iant) + * Better support for running in non-threaded contexts (csilvers) + +Fri Jan 27 14:04:27 2006 Google Inc. + + * google-perftools: version 0.6 release + * More sophisticated stacktrace usage, possibly using libunwind (aruns) + * Update pprof to handle 64-bit profiles (dehnert) + * Fix GetStackTrace to correctly return top stackframe (sanjay) + * Add ANSI compliance for new and new[], including new_handler (jkearney) + * More accuracy by reading ELF files directly rather than objdump (mec) + * Add readline support for pprof (addi) + * Add #includes for PPC (csilvers) + * New PC-detection routine for ibook powerpc (asbestoshead) + * Vastly improved tcmalloc unittest (csilvers) + * Move documentation from /usr/doc to /usr/share/doc + +Mon Nov 14 17:28:59 2005 Google Inc. + + * google-perftools: version 0.5 release + * Add va_start/va_end calls around vsnprintf() (csilvers) + * Write our own __syscall_return(), since it's not defined + consistently on all 64-bit linux distros (markus) + +Wed Oct 26 15:19:16 2005 Google Inc. + + * google-perftools: version 0.4 release + * Decrease fragmentation in tcmalloc (lefevere) + * Support for ARM in some of the thread-specific code (markus) + * Turn off heap-checker for statically-linked binaries, which + cause error leak reports now (etune) + * Many pprof improvements, including a command-line interface (jeff) + * CPU profiling now automatically affects all threads in linux 2.6. + (Kernel bugs break CPU profiling and threads in linux 2.4 a bit.) + ProfilerEnable() and ProfilerDisable() are deprecated. (sanjay) + * tcmalloc now correctly intercepts memalign (m3b, maxim) + * Syntax fix: added missing va_end()s. Helps non-gcc compiling (etune) + * Fixed a few coredumper bugs: race condition after PTRACE_DETACH, + ignore non-aligned stackframe pointers (markus, menage) + * 64-bit cleanup, especially for spinlock code (etune) and mmap (sanjay) + * Better support for finding threads in linux (markus) + * tcmalloc now tracks those stack traces that allocate memory (sanjay) + * Work around a weird setspecific problem (sanjay) + * Fix tcmalloc overflow problems when an alloc is close to 2G/4G (sanjay) + +Fri Jun 24 18:02:26 2005 Google Inc. + + * google-perftools: version 0.3 release + * Add missing errno include for one of the unittests (csilvers) + * Reduce tcmalloc startup memory from 5M to 256K (sanjay) + * Add support for mallopt() and mallinfo (sanjay) + * Improve stacktrace's performance on some 64-bit systems (etune) + * Improve the stacktrace unittest (etune) + +Tue May 31 08:14:38 2005 Google Inc. + + * google-perftools: version 0.2 release + * Use mmap2() instead of mmap(), to map more memory (menage) + * Do correct pthread-local checking in heap-checker! (maxim) + * Avoid overflow on 64-bit machines in pprof (sanjay) + * Add a few more GetPC() functions, including for AMD (csilvers) + * Better method for overriding pthread functions (menage) + * (Hacky) fix to avoid overwriting profile files after fork() (csilvers) + * Crashing bugfix involving dumping heaps on small-stack threads (tudor) + * Allow library versions with letters at the end (csilvers) + * Config fixes for systems that don't define PATH_MAX (csilvers) + * Confix fixes so we no longer need config.h after install (csilvers) + * Fix to pprof to correctly read very big cpu profiles (csilvers) + * Fix to pprof to deal with new commandline flags in modern gv's + * Better error reporting when we can't access /proc/maps (etune) + * Get rid of the libc-preallocate code (which could crash on some + systems); no longer needed with local-threads fix (csilvers) + +Tue Feb 8 09:57:17 2005 Google Inc. + + * google-perftools: initial release: + The google-perftools package contains some utilities to improve + and analyze the performance of C++ programs. This includes an + optimized thread-caching malloc() and cpu and heap profiling + utilities. diff --git a/trunk/3rdparty/gperftools-2-fit/INSTALL b/trunk/3rdparty/gperftools-2-fit/INSTALL new file mode 100644 index 000000000..cfb6b971a --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/INSTALL @@ -0,0 +1,564 @@ +Copyright 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software +Foundation, Inc. + + This file is free documentation; the Free Software Foundation gives +unlimited permission to copy, distribute and modify it. + + +Perftools-Specific Install Notes +================================ + +*** Building from source repository + +As of 2.1 gperftools does not have configure and other autotools +products checked into it's source repository. This is common practice +for projects using autotools. + +NOTE: Source releases (.tar.gz that you download from +code.google.com/p/gperftools) still have all required files just as +before. Nothing has changed w.r.t. building from .tar.gz releases. + +But, in order to build gperftools checked out from subversion +repository you need to have autoconf, automake and libtool +installed. And before running ./configure you have to generate it (and +a bunch of other files) by running ./autogen.sh script. That script +will take care of calling correct autotools programs in correct order. + +If you're maintainer then it's business as usual too. Just run make +dist (or, preferably, make distcheck) and it'll produce .tar.gz or +.tar.bz2 with all autotools magic already included. So that users can +build our software without having autotools. + + +*** NOTE FOR 64-BIT LINUX SYSTEMS + +The glibc built-in stack-unwinder on 64-bit systems has some problems +with the perftools libraries. (In particular, the cpu/heap profiler +may be in the middle of malloc, holding some malloc-related locks when +they invoke the stack unwinder. The built-in stack unwinder may call +malloc recursively, which may require the thread to acquire a lock it +already holds: deadlock.) + +For that reason, if you use a 64-bit system, we strongly recommend you +install libunwind before trying to configure or install gperftools. +libunwind can be found at + + http://download.savannah.gnu.org/releases/libunwind/libunwind-0.99-beta.tar.gz + +Even if you already have libunwind installed, you should check the +version. Versions older than this will not work properly; too-new +versions introduce new code that does not work well with perftools +(because libunwind can call malloc, which will lead to deadlock). + +There have been reports of crashes with libunwind 0.99 (see +http://code.google.com/p/gperftools/issues/detail?id=374). +Alternately, you can use a more recent libunwind (e.g. 1.0.1) at the +cost of adding a bit of boilerplate to your code. For details, see +http://groups.google.com/group/google-perftools/msg/2686d9f24ac4365f + + CAUTION: if you install libunwind from the url above, be aware that + you may have trouble if you try to statically link your binary with + perftools: that is, if you link with 'gcc -static -lgcc_eh ...'. + This is because both libunwind and libgcc implement the same C++ + exception handling APIs, but they implement them differently on + some platforms. This is not likely to be a problem on ia64, but + may be on x86-64. + + Also, if you link binaries statically, make sure that you add + -Wl,--eh-frame-hdr to your linker options. This is required so that + libunwind can find the information generated by the compiler + required for stack unwinding. + + Using -static is rare, though, so unless you know this will affect + you it probably won't. + +If you cannot or do not wish to install libunwind, you can still try +to use the built-in stack unwinder. The built-in stack unwinder +requires that your application, the tcmalloc library, and system +libraries like libc, all be compiled with a frame pointer. This is +*not* the default for x86-64. + +If you are on x86-64 system, know that you have a set of system +libraries with frame-pointers enabled, and compile all your +applications with -fno-omit-frame-pointer, then you can enable the +built-in perftools stack unwinder by passing the +--enable-frame-pointers flag to configure. + +Even with the use of libunwind, there are still known problems with +stack unwinding on 64-bit systems, particularly x86-64. See the +"64-BIT ISSUES" section in README. + +If you encounter problems, try compiling perftools with './configure +--enable-frame-pointers'. Note you will need to compile your +application with frame pointers (via 'gcc -fno-omit-frame-pointer +...') in this case. + + +*** TCMALLOC LARGE PAGES: TRADING TIME FOR SPACE + +You can set a compiler directive that makes tcmalloc faster, at the +cost of using more space (due to internal fragmentation). + +Internally, tcmalloc divides its memory into "pages." The default +page size is chosen to minimize memory use by reducing fragmentation. +The cost is that keeping track of these pages can cost tcmalloc time. +We've added a new flag to tcmalloc that enables a larger page size. +In general, this will increase the memory needs of applications using +tcmalloc. However, in many cases it will speed up the applications +as well, particularly if they allocate and free a lot of memory. We've +seen average speedups of 3-5% on Google applications. + +To build libtcmalloc with large pages you need to use the +--with-tcmalloc-pagesize=ARG configure flag, e.g.: + + ./configure --with-tcmalloc-pagesize=32 + +The ARG argument can be 4, 8, 16, 32, 64, 128 or 256 which sets the +internal page size to 4K, 8K, 16K, 32K, 64K, 128K and 256K respectively. +The default is 8K. + + +*** SMALL TCMALLOC CACHES: TRADING SPACE FOR TIME + +You can set a compiler directive that makes tcmalloc use less memory +for overhead, at the cost of some time. + +Internally, tcmalloc keeps information about some of its internal data +structures in a cache. This speeds memory operations that need to +access this internal data. We've added a new, experimental flag to +tcmalloc that reduces the size of this cache, decresaing the memory +needs of applications using tcmalloc. + +This feature is still very experimental; it's not even a configure +flag yet. To build libtcmalloc with smaller internal caches, run + + ./configure CXXFLAGS=-DTCMALLOC_SMALL_BUT_SLOW + +(or add -DTCMALLOC_SMALL_BUT_SLOW to your existing CXXFLAGS argument). + + +*** NOTE FOR ___tls_get_addr ERROR + +When compiling perftools on some old systems, like RedHat 8, you may +get an error like this: + ___tls_get_addr: symbol not found + +This means that you have a system where some parts are updated enough +to support Thread Local Storage, but others are not. The perftools +configure script can't always detect this kind of case, leading to +that error. To fix it, just comment out the line + #define HAVE_TLS 1 +in your config.h file before building. + + +*** TCMALLOC AND DLOPEN + +To improve performance, we use the "initial exec" model of Thread +Local Storage in tcmalloc. The price for this is the library will not +work correctly if it is loaded via dlopen(). This should not be a +problem, since loading a malloc-replacement library via dlopen is +asking for trouble in any case: some data will be allocated with one +malloc, some with another. If, for some reason, you *do* need to use +dlopen on tcmalloc, the easiest way is to use a version of tcmalloc +with TLS turned off; see the ___tls_get_addr note above. + + +*** COMPILING ON NON-LINUX SYSTEMS + +Perftools has been tested on the following systems: + FreeBSD 6.0 (x86) + FreeBSD 8.1 (x86_64) + Linux CentOS 5.5 (x86_64) + Linux Debian 4.0 (PPC) + Linux Debian 5.0 (x86) + Linux Fedora Core 3 (x86) + Linux Fedora Core 4 (x86) + Linux Fedora Core 5 (x86) + Linux Fedora Core 6 (x86) + Linux Fedora Core 13 (x86_64) + Linux Fedora Core 14 (x86_64) + Linux RedHat 9 (x86) + Linux Slackware 13 (x86_64) + Linux Ubuntu 6.06.1 (x86) + Linux Ubuntu 6.06.1 (x86_64) + Linux Ubuntu 10.04 (x86) + Linux Ubuntu 10.10 (x86_64) + Mac OS X 10.3.9 (Panther) (PowerPC) + Mac OS X 10.4.8 (Tiger) (PowerPC) + Mac OS X 10.4.8 (Tiger) (x86) + Mac OS X 10.5 (Leopard) (x86) + Mac OS X 10.6 (Snow Leopard) (x86) + Solaris 10 (x86_64) + Windows XP, Visual Studio 2003 (VC++ 7.1) (x86) + Windows XP, Visual Studio 2005 (VC++ 8) (x86) + Windows XP, Visual Studio 2005 (VC++ 9) (x86) + Windows XP, Visual Studio 2005 (VC++ 10) (x86) + Windows XP, MinGW 5.1.3 (x86) + Windows XP, Cygwin 5.1 (x86) + +It works in its full generality on the Linux systems +tested (though see 64-bit notes above). Portions of perftools work on +the other systems. The basic memory-allocation library, +tcmalloc_minimal, works on all systems. The cpu-profiler also works +fairly widely. However, the heap-profiler and heap-checker are not +yet as widely supported. In general, the 'configure' script will +detect what OS you are building for, and only build the components +that work on that OS. + +Note that tcmalloc_minimal is perfectly usable as a malloc/new +replacement, so it is possible to use tcmalloc on all the systems +above, by linking in libtcmalloc_minimal. + +** FreeBSD: + + The following binaries build and run successfully (creating + libtcmalloc_minimal.so and libprofile.so in the process): + % ./configure + % make tcmalloc_minimal_unittest tcmalloc_minimal_large_unittest \ + addressmap_unittest atomicops_unittest frag_unittest \ + low_level_alloc_unittest markidle_unittest memalign_unittest \ + packed_cache_test stacktrace_unittest system_alloc_unittest \ + thread_dealloc_unittest profiler_unittest.sh + % ./tcmalloc_minimal_unittest # to run this test + % [etc] # to run other tests + + Three caveats: first, frag_unittest tries to allocate 400M of memory, + and if you have less virtual memory on your system, the test may + fail with a bad_alloc exception. + + Second, profiler_unittest.sh sometimes fails in the "fork" test. + This is because stray SIGPROF signals from the parent process are + making their way into the child process. (This may be a kernel + bug that only exists in older kernels.) The profiling code itself + is working fine. This only affects programs that call fork(); for + most programs, the cpu profiler is entirely safe to use. + + Third, perftools depends on /proc to get shared library + information. If you are running a FreeBSD system without proc, + perftools will not be able to map addresses to functions. Some + unittests will fail as a result. + + Finally, the new test introduced in perftools-1.2, + profile_handler_unittest, fails on FreeBSD. It has something to do + with how the itimer works. The cpu profiler test passes, so I + believe the functionality is correct and the issue is with the test + somehow. If anybody is an expert on itimers and SIGPROF in + FreeBSD, and would like to debug this, I'd be glad to hear the + results! + + libtcmalloc.so successfully builds, and the "advanced" tcmalloc + functionality all works except for the leak-checker, which has + Linux-specific code: + % make heap-profiler_unittest.sh maybe_threads_unittest.sh \ + tcmalloc_unittest tcmalloc_both_unittest \ + tcmalloc_large_unittest # THESE WORK + % make -k heap-checker_unittest.sh \ + heap-checker-death_unittest.sh # THESE DO NOT + + Note that unless you specify --enable-heap-checker explicitly, + 'make' will not build the heap-checker unittests on a FreeBSD + system. + + I have not tested other *BSD systems, but they are probably similar. + +** Mac OS X: + + I've tested OS X 10.5 [Leopard], OS X 10.4 [Tiger] and OS X 10.3 + [Panther] on both intel (x86) and PowerPC systems. For Panther + systems, perftools does not work at all: it depends on a header + file, OSAtomic.h, which is new in 10.4. (It's possible to get the + code working for Panther/i386 without too much work; if you're + interested in exploring this, drop an e-mail.) + + For the other seven systems, the binaries and libraries that + successfully build are exactly the same as for FreeBSD. See that + section for a list of binaries and instructions on building them. + + In addition, it appears OS X regularly fails profiler_unittest.sh + in the "thread" test (in addition to occassionally failing in the + "fork" test). It looks like OS X often delivers the profiling + signal to the main thread, even when it's sleeping, rather than + spawned threads that are doing actual work. If anyone knows + details of how OS X handles SIGPROF (via setitimer()) events with + threads, and has insight into this problem, please send mail to + google-perftools@googlegroups.com. + +** Solaris 10 x86: + + I've only tested using the GNU C++ compiler, not the Sun C++ + compiler. Using g++ requires setting the PATH appropriately when + configuring. + + % PATH=${PATH}:/usr/sfw/bin/:/usr/ccs/bin ./configure + % PATH=${PATH}:/usr/sfw/bin/:/usr/ccs/bin make [...] + + Again, the binaries and libraries that successfully build are + exactly the same as for FreeBSD. (However, while libprofiler.so can + be used to generate profiles, pprof is not very successful at + reading them -- necessary helper programs like nm don't seem + to be installed by default on Solaris, or perhaps are only + installed as part of the Sun C++ compiler package.) See that + section for a list of binaries, and instructions on building them. + +** Windows (MSVC, Cygwin, and MinGW): + + Work on Windows is rather preliminary: only tcmalloc_minimal is + supported. + + We haven't found a good way to get stack traces in release mode on + windows (that is, when FPO is enabled), so the heap profiling may + not be reliable in that case. Also, heap-checking and CPU profiling + do not yet work at all. But as in other ports, the basic tcmalloc + library functionality, overriding malloc and new and such (and even + windows-specific functions like _aligned_malloc!), is working fine, + at least with VC++ 7.1 (Visual Studio 2003) through VC++ 10.0, + in both debug and release modes. See README.windows for + instructions on how to install on Windows using Visual Studio. + + Cygwin can compile some but not all of perftools. Furthermore, + there is a problem with exception-unwinding in cygwin (it can call + malloc, which can call the exception-unwinding-setup code, which + can lead to an infinite loop). I've comitted a workaround to the + exception unwinding problem, but it only works in debug mode and + when statically linking in tcmalloc. I hope to have a more proper + fix in a later release. To configure under cygwin, run + + ./configure --disable-shared CXXFLAGS=-g && make + + Most of cygwin will compile (cygwin doesn't allow weak symbols, so + the heap-checker and a few other pieces of functionality will not + compile). 'make' will compile those libraries and tests that can + be compiled. You can run 'make check' to make sure the basic + functionality is working. I've heard reports that some versions of + cygwin fail calls to pthread_join() with EINVAL, causing several + tests to fail. If you have any insight into this, please mail + google-perftools@googlegroups.com. + + This Windows functionality is also available using MinGW and Msys, + In this case, you can use the regular './configure && make' + process. 'make install' should also work. The Makefile will limit + itself to those libraries and binaries that work on windows. + + +Basic Installation +================== + + These are generic installation instructions. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, and a +file `config.log' containing compiler output (useful mainly for +debugging `configure'). + + It can also use an optional file (typically called `config.cache' +and enabled with `--cache-file=config.cache' or simply `-C') that saves +the results of its tests to speed up reconfiguring. (Caching is +disabled by default to prevent problems with accidental use of stale +cache files.) + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If you are using the cache, and at +some point `config.cache' contains results you don't want to keep, you +may remove or edit it. + + The file `configure.ac' (or `configure.in') is used to create +`configure' by a program called `autoconf'. You only need +`configure.ac' if you want to change it or regenerate `configure' using +a newer version of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. If you're + using `csh' on an old version of System V, you might need to type + `sh ./configure' instead to prevent `csh' from trying to execute + `configure' itself. + + Running `configure' takes awhile. While running, it prints some + messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + +Compilers and Options +===================== + + Some systems require unusual options for compilation or linking that +the `configure' script does not know about. Run `./configure --help' +for details on some of the pertinent environment variables. + + You can give `configure' initial values for configuration parameters +by setting variables in the command line or in the environment. Here +is an example: + + ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix + + *Note Defining Variables::, for more details. + +Compiling For Multiple Architectures +==================================== + + You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you must use a version of `make' that +supports the `VPATH' variable, such as GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + If you have to use a `make' that does not support the `VPATH' +variable, you have to compile the package for one architecture at a +time in the source code directory. After you have installed the +package for one architecture, use `make distclean' before reconfiguring +for another architecture. + +Installation Names +================== + + By default, `make install' will install the package's files in +`/usr/local/bin', `/usr/local/man', etc. You can specify an +installation prefix other than `/usr/local' by giving `configure' the +option `--prefix=PATH'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. If you +give `configure' the option `--exec-prefix=PATH', the package will use +PATH as the prefix for installing programs and libraries. +Documentation and other data files will still use the regular prefix. + + In addition, if you use an unusual directory layout you can give +options like `--bindir=PATH' to specify different values for particular +kinds of files. Run `configure --help' for a list of the directories +you can set and what kinds of files go in them. + + If the package supports it, you can cause programs to be installed +with an extra prefix or suffix on their names by giving `configure' the +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. + +Optional Features +================= + + Some packages pay attention to `--enable-FEATURE' options to +`configure', where FEATURE indicates an optional part of the package. +They may also pay attention to `--with-PACKAGE' options, where PACKAGE +is something like `gnu-as' or `x' (for the X Window System). The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + + There may be some features `configure' cannot figure out +automatically, but needs to determine by the type of machine the package +will run on. Usually, assuming the package is built to be run on the +_same_ architectures, `configure' can figure that out, but if it prints +a message saying it cannot guess the machine type, give it the +`--build=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name which has the form: + + CPU-COMPANY-SYSTEM + +where SYSTEM can have one of these forms: + + OS KERNEL-OS + + See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the machine type. + + If you are _building_ compiler tools for cross-compiling, you should +use the `--target=TYPE' option to select the type of system they will +produce code for. + + If you want to _use_ a cross compiler, that generates code for a +platform different from the build platform, you should specify the +"host" platform (i.e., that on which the generated programs will +eventually be run) with `--host=TYPE'. + +Sharing Defaults +================ + + If you want to set default values for `configure' scripts to share, +you can create a site shell script called `config.site' that gives +default values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Defining Variables +================== + + Variables not defined in a site shell script can be set in the +environment passed to `configure'. However, some packages may run +configure again during the build, and the customized values of these +variables may be lost. In order to avoid this problem, you should set +them in the `configure' command line, using `VAR=value'. For example: + + ./configure CC=/usr/local2/bin/gcc + +will cause the specified gcc to be used as the C compiler (unless it is +overridden in the site shell script). + +`configure' Invocation +====================== + + `configure' recognizes the following options to control how it +operates. + +`--help' +`-h' + Print a summary of the options to `configure', and exit. + +`--version' +`-V' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`--cache-file=FILE' + Enable the cache: use and save the results of the tests in FILE, + traditionally `config.cache'. FILE defaults to `/dev/null' to + disable caching. + +`--config-cache' +`-C' + Alias for `--cache-file=config.cache'. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`configure' also accepts some other, not widely useful, options. Run +`configure --help' for more details. diff --git a/trunk/3rdparty/gperftools-2-fit/Makefile.am b/trunk/3rdparty/gperftools-2-fit/Makefile.am new file mode 100644 index 000000000..bc61f62ce --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/Makefile.am @@ -0,0 +1,1508 @@ +## Process this file with automake to produce Makefile.in + +# Note: for every library we create, we're explicit about what symbols +# we export. In order to avoid complications with C++ mangling, we always +# use the regexp for of specifying symbols. + +# Make sure that when we re-make ./configure, we get the macros we need +ACLOCAL_AMFLAGS = -I m4 +AUTOMAKE_OPTIONS = subdir-objects + +# This is so we can #include +AM_CPPFLAGS = -I$(top_srcdir)/src + +if !WITH_STACK_TRACE +AM_CPPFLAGS += -DNO_TCMALLOC_SAMPLES +endif !WITH_STACK_TRACE + +# This is mostly based on configure options +AM_CXXFLAGS = + +# These are good warnings to turn on by default. +if GCC +AM_CXXFLAGS += -Wall -Wwrite-strings -Woverloaded-virtual \ + -Wno-sign-compare + +# On i386, -mmmx is needed for the mmx-based instructions in +# atomicops-internal-x86.h. Also as of gcc 4.6, -fomit-frame-pointer +# is the default. Since we must always have frame pointers for I386 +# in order to generate backtraces we now specify -fno-omit-frame-pointer +# by default. +if I386 +AM_CXXFLAGS += -mmmx +AM_CXXFLAGS += -fno-omit-frame-pointer +endif I386 +endif GCC +if HAVE_W_NO_UNUSED_RESULT +AM_CXXFLAGS += -Wno-unused-result +endif HAVE_W_NO_UNUSED_RESULT +if HAVE_SIZED_DEALLOCATION +AM_CXXFLAGS += -fsized-deallocation +endif HAVE_SIZED_DEALLOCATION +if HAVE_F_ALIGNED_NEW +AM_CXXFLAGS += -faligned-new +endif HAVE_F_ALIGNED_NEW + +# The -no-undefined flag allows libtool to generate shared libraries for +# Cygwin and MinGW. LIBSTDCXX_LA_LINKER_FLAG is used to fix a Solaris bug. +AM_LDFLAGS = -no-undefined $(LIBSTDCXX_LA_LINKER_FLAG) + +# These are x86-specific, having to do with frame-pointers. In +# particular, some x86_64 systems do not insert frame pointers by +# default (all i386 systems that I know of, do. I don't know about +# non-x86 chips). We need to tell perftools what to do about that. +if OMIT_FP_BY_DEFAULT +if !ENABLE_FRAME_POINTERS +AM_CXXFLAGS += -DNO_FRAME_POINTER +endif !ENABLE_FRAME_POINTERS +endif OMIT_FP_BY_DEFAULT + +# respect --enable-frame-pointers regardless of architecture +if ENABLE_FRAME_POINTERS +AM_CXXFLAGS += -fno-omit-frame-pointer +endif ENABLE_FRAME_POINTERS + +# For windows systems (at least, mingw), we need to tell all our +# tests to link in libtcmalloc using -u. This is because libtcmalloc +# accomplishes its tasks via patching, leaving no work for the linker +# to identify, so the linker will ignore libtcmalloc by default unless +# we explicitly create a dependency via -u. +TCMALLOC_FLAGS = +if MINGW +TCMALLOC_FLAGS += -Wl,-u__tcmalloc +endif MINGW + +# If we have objcopy, make malloc/free/etc weak symbols. That way folks +# can override our malloc if they want to (they can still use tc_malloc). +# Note: the weird-looking symbols are the c++ memory functions: +# (in order) new, new(nothrow), new[], new[](nothrow), delete, delete[] +# In theory this will break if mangling changes, but that seems pretty +# unlikely at this point. Just in case, I throw in versions with an +# extra underscore as well, which may help on OS X. +if HAVE_OBJCOPY_WEAKEN +WEAKEN = $(OBJCOPY) -W malloc -W free -W realloc -W calloc -W cfree \ + -W memalign -W posix_memalign -W valloc -W pvalloc \ + -W aligned_alloc \ + -W malloc_stats -W mallopt -W mallinfo -W nallocx \ + -W _Znwm -W _ZnwmRKSt9nothrow_t -W _Znam -W _ZnamRKSt9nothrow_t \ + -W _ZdlPv -W _ZdaPv \ + -W __Znwm -W __ZnwmRKSt9nothrow_t -W __Znam -W __ZnamRKSt9nothrow_t \ + -W __ZdlPv -W __ZdaPv +else +WEAKEN = : +endif !HAVE_OBJCOPY_WEAKEN + +LIBS_TO_WEAKEN = + +perftoolsincludedir = $(includedir)/gperftools +# The .h files you want to install (that is, .h files that people +# who install this package can include in their own applications.) +# We'll add to this later, on a library-by-library basis +perftoolsinclude_HEADERS = +# tcmalloc.h is a special case, because it's a .h.in file +nodist_perftoolsinclude_HEADERS = src/gperftools/tcmalloc.h +noinst_HEADERS = src/gperftools/tcmalloc.h.in + +# This is provided for backwards compatibility. It is populated by +# files that just forward to the canonical location in +# perftoolsincludedir. +googleincludedir = $(includedir)/google +googleinclude_HEADERS = \ + src/google/heap-checker.h \ + src/google/heap-profiler.h \ + src/google/malloc_extension.h \ + src/google/malloc_extension_c.h \ + src/google/malloc_hook.h \ + src/google/malloc_hook_c.h \ + src/google/profiler.h \ + src/google/stacktrace.h \ + src/google/tcmalloc.h + +# This is for HTML and other documentation you want to install. +# Add your documentation files (in doc/) in addition to these +# top-level boilerplate files. Also add a TODO file if you have one. +# We'll add to this later, on a library-by-library basis +dist_doc_DATA = AUTHORS COPYING ChangeLog INSTALL NEWS README README_windows.txt \ + TODO ChangeLog.old + +# The libraries (.so's) you want to install +# We'll add to this later, on a library-by-library basis +lib_LTLIBRARIES = +# This is for 'convenience libraries' -- basically just a container for sources +noinst_LTLIBRARIES = +## The location of the windows project file for each binary we make +WINDOWS_PROJECTS = gperftools.sln + +# unittests you want to run when people type 'make check'. +# Note: tests cannot take any arguments! +# In theory, unittests that are scripts should be added to check_SCRIPTS +# instead. But check_SCRIPTS is definitely a second-class testing mechanims: +# it don't get TESTS_ENVIRONMENT, and it doesn't get success/failure counting +# (in fact, a script failure aborts all the rest of the tests, even with -k). +# So, for scripts, we add the script to tests, and also put in an empty +# rule so automake doesn't try to build the script as a C binary. +TESTS = +# TESTS_ENVIRONMENT sets environment variables for when you run unittest. +# We always get "srcdir" set for free. +# We'll add to this later, on a library-by-library basis. +TESTS_ENVIRONMENT = +# All script tests should be added here +noinst_SCRIPTS = +# If your test calls another program that, like the test itself, shouldn't +# be installed, add it here. (Stuff in TESTS is automatically added later). +noinst_PROGRAMS = + +# Binaries we might build that should be installed +bin_PROGRAMS = + +# This is my own var, used for extra libraries I make that I need installed +EXTRA_INSTALL = + +## vvvv RULES TO MAKE THE LIBRARIES, BINARIES, AND UNITTESTS + +dist_doc_DATA += docs/index.html docs/designstyle.css + + +### ------- library routines, in src/base + +# This is a 'convenience library' -- it's not actually installed or anything +LOGGING_INCLUDES = src/base/logging.h \ + src/base/commandlineflags.h \ + src/base/basictypes.h \ + src/base/dynamic_annotations.h +noinst_LTLIBRARIES += liblogging.la +liblogging_la_SOURCES = src/base/logging.cc \ + src/base/dynamic_annotations.c \ + $(LOGGING_INCLUDES) + +SYSINFO_INCLUDES = src/base/sysinfo.h \ + src/getenv_safe.h \ + src/base/logging.h \ + src/base/commandlineflags.h \ + src/base/arm_instruction_set_select.h \ + src/base/basictypes.h +noinst_LTLIBRARIES += libsysinfo.la +libsysinfo_la_SOURCES = src/base/sysinfo.cc \ + $(SYSINFO_INCLUDES) +libsysinfo_la_LIBADD = $(NANOSLEEP_LIBS) + +noinst_LTLIBRARIES += libmaybe_threads.la +# .cc is conditionally added below +libmaybe_threads_la_SOURCES = src/maybe_threads.h + +# For MinGW, we use also have to use libwindows Luckily, we need the +# windows.a library in exactly the same place we need spinlock.a +# (pretty much everywhere), so we can use the same variable name for +# each. We can also optimize the MinGW rule a bit by leaving out +# files we know aren't used on windows, such as +# atomicops-internals-x86.cc. libwindows also obsoletes the need for +# other files like system_alloc.cc. +if MINGW +WINDOWS_INCLUDES = src/windows/port.h \ + src/windows/mingw.h \ + src/windows/mini_disassembler.h \ + src/windows/mini_disassembler_types.h \ + src/windows/preamble_patcher.h +noinst_LTLIBRARIES += libwindows.la +libwindows_la_SOURCES = $(WINDOWS_INCLUDES) \ + src/windows/port.cc \ + src/windows/system-alloc.cc \ + src/windows/ia32_modrm_map.cc \ + src/windows/ia32_opcode_map.cc \ + src/windows/mini_disassembler.cc \ + src/windows/patch_functions.cc \ + src/windows/preamble_patcher.cc \ + src/windows/preamble_patcher_with_stub.cc +# patch_functions.cc uses Psapi.lib. MSVC has a #pragma for that, but not us. +libwindows_la_LIBADD = -lpsapi + +SPINLOCK_INCLUDES = src/base/spinlock.h \ + src/base/spinlock_internal.h \ + src/base/spinlock_win32-inl.h \ + src/base/spinlock_linux-inl.h \ + src/base/spinlock_posix-inl.h \ + src/base/atomicops-internals-macosx.h \ + src/base/atomicops-internals-linuxppc.h \ + src/base/atomicops-internals-arm-generic.h \ + src/base/atomicops-internals-arm-v6plus.h \ + src/base/atomicops-internals-mips.h \ + src/base/atomicops-internals-windows.h \ + src/base/atomicops-internals-gcc.h \ + src/base/atomicops-internals-x86.h +noinst_LTLIBRARIES += libspinlock.la +libspinlock_la_SOURCES = src/base/spinlock.cc \ + src/base/spinlock_internal.cc \ + src/base/atomicops-internals-x86.cc \ + $(SPINLOCK_INCLUDES) + +LIBSPINLOCK = libwindows.la libspinlock.la libsysinfo.la liblogging.la + +# We also need to tell mingw that sysinfo.cc needs shlwapi.lib. +# (We do this via a #pragma for msvc, but need to do it here for mingw). +libsysinfo_la_LIBADD += -lshlwapi + +# There's a windows-specific unittest we can run. Right now it's +# win64-specific, and relies on masm, so we comment it out. +## TESTS += preamble_patcher_test +## preamble_patcher_test_SOURCES = src/windows/preamble_patcher_test.cc \ +## src/windows/shortproc.asm \ +## src/windows/auto_testing_hook.h \ +## src/windows/preamble_patcher.h \ +## src/base/basictypes.h \ +## src/base/logging.h +## preamble_patcher_test_LDFLAGS = $(TCMALLOC_FLAGS) +## preamble_patcher_test_LDADD = $(LIBTCMALLOC_MINIMAL) + +# patch_functions.cc #includes tcmalloc.cc, so no need to link it in. +TCMALLOC_CC = +# windows has its own system for threads and system memory allocation. +if HAVE_PTHREAD_DESPITE_ASKING_FOR +libmaybe_threads_la_SOURCES += src/maybe_threads.cc +endif +SYSTEM_ALLOC_CC = +else !MINGW +# spinlock is the only code that uses atomicops. +SPINLOCK_INCLUDES = src/base/spinlock.h \ + src/base/spinlock_internal.h \ + src/base/atomicops.h \ + src/base/atomicops-internals-macosx.h \ + src/base/atomicops-internals-linuxppc.h \ + src/base/atomicops-internals-windows.h \ + src/base/atomicops-internals-x86.h + +noinst_LTLIBRARIES += libspinlock.la +libspinlock_la_SOURCES = src/base/spinlock.cc \ + src/base/spinlock_internal.cc \ + src/base/atomicops-internals-x86.cc \ + $(SPINLOCK_INCLUDES) +libspinlock_la_LIBADD = $(NANOSLEEP_LIBS) +# spinlock also needs NumCPUs, from libsysinfo, which in turn needs liblogging +LIBSPINLOCK = libspinlock.la libsysinfo.la liblogging.la + +TCMALLOC_CC = src/tcmalloc.cc +libmaybe_threads_la_SOURCES += src/maybe_threads.cc +SYSTEM_ALLOC_CC = src/system-alloc.cc +endif !MINGW + +# Add this whether or not we're under MinGW, to keep the tarball complete. +WINDOWS_PROJECTS += vsprojects/preamble_patcher_test/preamble_patcher_test.vcxproj +# Because we've commented out the test, above, we have to explicitly add +# the test files to the tarball or automake will leave them out. +WINDOWS_PROJECTS += src/windows/preamble_patcher_test.cc \ + src/windows/shortproc.asm \ + src/windows/auto_testing_hook.h + +### Unittests +TESTS += low_level_alloc_unittest +WINDOWS_PROJECTS += vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcxproj +LOW_LEVEL_ALLOC_UNITTEST_INCLUDES = src/base/low_level_alloc.h \ + src/base/basictypes.h \ + src/gperftools/malloc_hook.h \ + src/gperftools/malloc_hook_c.h \ + src/malloc_hook-inl.h \ + src/malloc_hook_mmap_linux.h \ + src/malloc_hook_mmap_freebsd.h \ + $(SPINLOCK_INCLUDES) \ + $(LOGGING_INCLUDES) +low_level_alloc_unittest_SOURCES = src/base/low_level_alloc.cc \ + src/malloc_hook.cc \ + src/tests/low_level_alloc_unittest.cc \ + $(LOW_LEVEL_ALLOC_UNITTEST_INCLUDES) +# By default, MallocHook takes stack traces for use by the heap-checker. +# We don't need that functionality here, so we turn it off to reduce deps. +low_level_alloc_unittest_CXXFLAGS = -DNO_TCMALLOC_SAMPLES +low_level_alloc_unittest_LDADD = $(LIBSPINLOCK) libmaybe_threads.la + +TESTS += atomicops_unittest +ATOMICOPS_UNITTEST_INCLUDES = src/base/atomicops.h \ + src/base/atomicops-internals-macosx.h \ + src/base/atomicops-internals-windows.h \ + src/base/atomicops-internals-x86.h \ + $(LOGGING_INCLUDES) +atomicops_unittest_SOURCES = src/tests/atomicops_unittest.cc \ + $(ATOMICOPS_UNITTEST_INCLUDES) +atomicops_unittest_LDADD = $(LIBSPINLOCK) + + +### ------- stack trace + +if WITH_STACK_TRACE + +### The header files we use. We divide into categories based on directory +S_STACKTRACE_INCLUDES = src/stacktrace_impl_setup-inl.h \ + src/stacktrace_generic-inl.h \ + src/stacktrace_generic_fp-inl.h \ + src/stacktrace_libgcc-inl.h \ + src/stacktrace_libunwind-inl.h \ + src/stacktrace_arm-inl.h \ + src/stacktrace_powerpc-inl.h \ + src/stacktrace_powerpc-darwin-inl.h \ + src/stacktrace_powerpc-linux-inl.h \ + src/stacktrace_x86-inl.h \ + src/stacktrace_win32-inl.h \ + src/stacktrace_instrument-inl.h \ + src/base/elf_mem_image.h \ + src/base/vdso_support.h + +SG_STACKTRACE_INCLUDES = src/gperftools/stacktrace.h +STACKTRACE_INCLUDES = $(S_STACKTRACE_INCLUDES) $(SG_STACKTRACE_INCLUDES) +perftoolsinclude_HEADERS += $(SG_STACKTRACE_INCLUDES) + +### Making the library +noinst_LTLIBRARIES += libstacktrace.la +libstacktrace_la_SOURCES = src/stacktrace.cc \ + src/base/elf_mem_image.cc \ + src/base/vdso_support.cc \ + $(STACKTRACE_INCLUDES) +libstacktrace_la_LIBADD = $(UNWIND_LIBS) $(LIBSPINLOCK) +STACKTRACE_SYMBOLS = '(GetStackTrace|GetStackFrames|GetStackTraceWithContext|GetStackFramesWithContext)' +libstacktrace_la_LDFLAGS = -export-symbols-regex $(STACKTRACE_SYMBOLS) $(AM_LDFLAGS) + +noinst_LTLIBRARIES += libfake_stacktrace_scope.la +libfake_stacktrace_scope_la_SOURCES = src/fake_stacktrace_scope.cc + +### Unittests +TESTS += stacktrace_unittest +STACKTRACE_UNITTEST_INCLUDES = src/config_for_unittests.h \ + src/base/commandlineflags.h \ + $(STACKTRACE_INCLUDES) \ + $(LOGGING_INCLUDES) +stacktrace_unittest_SOURCES = src/tests/stacktrace_unittest.cc \ + $(STACKTRACE_UNITTEST_INCLUDES) +stacktrace_unittest_LDADD = libstacktrace.la liblogging.la libfake_stacktrace_scope.la + +### Documentation +dist_doc_DATA += + +endif WITH_STACK_TRACE + +### ------- pprof + +# If we are not compiling with stacktrace support, pprof is worthless +if WITH_STACK_TRACE + +bin_SCRIPTS = pprof-symbolize + +pprof-symbolize : $(top_srcdir)/src/pprof + cp -p $(top_srcdir)/src/pprof $@ + +### Unittests + +check_SCRIPTS = pprof_unittest +pprof_unittest: $(top_srcdir)/src/pprof + $(top_srcdir)/src/pprof -test + +# Let unittests find pprof if they need to run it +TESTS_ENVIRONMENT += PPROF_PATH=$(top_srcdir)/src/pprof + +if INSTALL_PPROF +bin_SCRIPTS += src/pprof +dist_man_MANS = docs/pprof.1 +dist_doc_DATA += docs/pprof_remote_servers.html +endif INSTALL_PPROF + +### Documentation + +# On MSVC, we need our own versions of addr2line and nm to work with pprof. +WINDOWS_PROJECTS += vsprojects/nm-pdb/nm-pdb.vcxproj +WINDOWS_PROJECTS += vsprojects/addr2line-pdb/addr2line-pdb.vcxproj +# This is a slight abuse of WINDOWS_PROJECTS, but not much +WINDOWS_PROJECTS += src/windows/nm-pdb.c \ + src/windows/addr2line-pdb.c + +endif WITH_STACK_TRACE + +### ------- tcmalloc_minimal (thread-caching malloc) + +### The header files we use. We divide into categories based on directory +S_TCMALLOC_MINIMAL_INCLUDES = src/common.h \ + src/internal_logging.h \ + src/system-alloc.h \ + src/packed-cache-inl.h \ + $(SPINLOCK_INCLUDES) \ + src/tcmalloc_guard.h \ + src/base/commandlineflags.h \ + src/base/basictypes.h \ + src/pagemap.h \ + src/sampler.h \ + src/central_freelist.h \ + src/linked_list.h \ + src/libc_override.h \ + src/libc_override_gcc_and_weak.h \ + src/libc_override_glibc.h \ + src/libc_override_osx.h \ + src/libc_override_redefine.h \ + src/page_heap.h \ + src/page_heap_allocator.h \ + src/span.h \ + src/static_vars.h \ + src/symbolize.h \ + src/thread_cache.h \ + src/stack_trace_table.h \ + src/base/thread_annotations.h \ + src/malloc_hook-inl.h \ + src/malloc_hook_mmap_linux.h \ + src/malloc_hook_mmap_freebsd.h +SG_TCMALLOC_MINIMAL_INCLUDES = src/gperftools/malloc_hook.h \ + src/gperftools/malloc_hook_c.h \ + src/gperftools/malloc_extension.h \ + src/gperftools/malloc_extension_c.h \ + src/gperftools/nallocx.h +TCMALLOC_MINIMAL_INCLUDES = $(S_TCMALLOC_MINIMAL_INCLUDES) $(SG_TCMALLOC_MINIMAL_INCLUDES) $(SG_STACKTRACE_INCLUDES) +perftoolsinclude_HEADERS += $(SG_TCMALLOC_MINIMAL_INCLUDES) + +### Making the library + +noinst_LTLIBRARIES += libtcmalloc_minimal_internal.la +libtcmalloc_minimal_internal_la_SOURCES = src/common.cc \ + src/internal_logging.cc \ + $(SYSTEM_ALLOC_CC) \ + src/memfs_malloc.cc \ + src/central_freelist.cc \ + src/page_heap.cc \ + src/sampler.cc \ + src/span.cc \ + src/stack_trace_table.cc \ + src/static_vars.cc \ + src/symbolize.cc \ + src/thread_cache.cc \ + src/malloc_hook.cc \ + src/malloc_extension.cc \ + $(TCMALLOC_MINIMAL_INCLUDES) +# We #define NO_TCMALLOC_SAMPLES, since sampling is turned off for _minimal. +libtcmalloc_minimal_internal_la_CXXFLAGS = -DNO_TCMALLOC_SAMPLES \ + -DNO_HEAP_CHECK \ + -DNDEBUG \ + $(AM_CXXFLAGS) +libtcmalloc_minimal_internal_la_LDFLAGS = $(AM_LDFLAGS) +libtcmalloc_minimal_internal_la_LIBADD = $(LIBSPINLOCK) libmaybe_threads.la + +lib_LTLIBRARIES += libtcmalloc_minimal.la +WINDOWS_PROJECTS += vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcxproj +libtcmalloc_minimal_la_SOURCES = $(TCMALLOC_CC) $(TCMALLOC_MINIMAL_INCLUDES) +libtcmalloc_minimal_la_CXXFLAGS = -DNO_TCMALLOC_SAMPLES \ + $(PTHREAD_CFLAGS) -DNDEBUG $(AM_CXXFLAGS) +# -version-info gets passed to libtool +libtcmalloc_minimal_la_LDFLAGS = -version-info @TCMALLOC_SO_VERSION@ $(AM_LDFLAGS) +libtcmalloc_minimal_la_LIBADD = libtcmalloc_minimal_internal.la + +# For windows, we're playing around with trying to do some stacktrace +# support even with libtcmalloc_minimal. For everyone else, though, +# we turn off all stack-trace activity for libtcmalloc_minimal. +# TODO(csilvers): when we're done experimenting, do something principled here +if MINGW +LIBTCMALLOC_MINIMAL = libtcmalloc_minimal.la libstacktrace.la +else !MINGW +LIBTCMALLOC_MINIMAL = libtcmalloc_minimal.la +endif !MINGW + +LIBS_TO_WEAKEN += libtcmalloc_minimal.la + +### Unittests + +# Commented out for the moment because malloc(very_big_num) is broken in +# standard libc! At least, in some situations, some of the time. +## TESTS += malloc_unittest +## MALLOC_UNITEST_INCLUDES = src/gperftools/malloc_extension.h \ +## src/gperftools/malloc_hook.h \ +## src/gperftools/malloc_hook_c.h \ +## src/malloc_hook-inl.h \ +## src/malloc_hook_mmap_linux.h \ +## src/malloc_hook_mmap_freebsd.h \ +## src/base/basictypes.h \ +## src/maybe_threads.h +## malloc_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ +## src/malloc_hook.cc \ +## src/malloc_extension.cc \ +## $(MAYBE_THREADS_CC) \ +## $(MALLOC_UNITTEST_INCLUDES) +## malloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +## malloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) +## malloc_unittest_LDADD = $(PTHREAD_LIBS) + +TESTS += tcmalloc_minimal_unittest +WINDOWS_PROJECTS += vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcxproj +tcmalloc_minimal_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ + src/tests/testutil.h src/tests/testutil.cc \ + $(TCMALLOC_UNITTEST_INCLUDES) +tcmalloc_minimal_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_minimal_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +# We also put pthreads after tcmalloc, because some pthread +# implementations define their own malloc, and we need to go on the +# first linkline to make sure our malloc 'wins'. +tcmalloc_minimal_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) \ + liblogging.la $(PTHREAD_LIBS) + +# lets make sure we exerice ASSERTs in at least in statically linked +# configuration +TESTS += tcm_min_asserts_unittest +tcm_min_asserts_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ + src/tests/testutil.h src/tests/testutil.cc \ + $(libtcmalloc_minimal_internal_la_SOURCES) \ + $(libtcmalloc_minimal_la_SOURCES) \ + $(TCMALLOC_UNITTEST_INCLUDES) +tcm_min_asserts_unittest_CXXFLAGS = -DNO_TCMALLOC_SAMPLES -DNO_HEAP_CHECK \ + $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcm_min_asserts_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcm_min_asserts_unittest_LDADD = $(LIBSPINLOCK) libmaybe_threads.la \ + liblogging.la $(PTHREAD_LIBS) + +TESTS += tcmalloc_minimal_large_unittest +WINDOWS_PROJECTS += vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcxproj +tcmalloc_minimal_large_unittest_SOURCES = src/tests/tcmalloc_large_unittest.cc +tcmalloc_minimal_large_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_minimal_large_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcmalloc_minimal_large_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += tcmalloc_minimal_large_heap_fragmentation_unittest +tcmalloc_minimal_large_heap_fragmentation_unittest_SOURCES = src/tests/large_heap_fragmentation_unittest.cc +tcmalloc_minimal_large_heap_fragmentation_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_minimal_large_heap_fragmentation_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcmalloc_minimal_large_heap_fragmentation_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +# This tests it works to LD_PRELOAD libtcmalloc (tests maybe_threads.cc) +# In theory this should work under mingw, but mingw has trouble running +# shell scripts that end in .exe. And it doesn't seem to build shared +# libraries anyway (so can't be LD_PRELOADed) -- in fact, anybody who +# chooses not to build shared libraries won't be able to run this test. +# TODO(csilvers): figure out how to nix ".exe" or otherwise work under mingw +if !MINGW +if !ENABLE_STATIC +TESTS += maybe_threads_unittest.sh$(EXEEXT) +maybe_threads_unittest_sh_SOURCES = src/tests/maybe_threads_unittest.sh +noinst_SCRIPTS += $(maybe_threads_unittest_sh_SOURCES) +# This script preloads libtcmalloc, and calls two other binaries as well +# TODO(csilvers): replace by 'if ! cmp $^ $@ >/dev/null 2>&; then ...; fi' +maybe_threads_unittest.sh$(EXEEXT): $(top_srcdir)/$(maybe_threads_unittest_sh_SOURCES) \ + $(LIBTCMALLOC_MINIMAL) \ + low_level_alloc_unittest + rm -f $@ + cp -p $(top_srcdir)/$(maybe_threads_unittest_sh_SOURCES) $@ +endif !ENABLE_STATIC +endif !MINGW + +# These all tests components of tcmalloc_minimal + +TESTS += addressmap_unittest +WINDOWS_PROJECTS += vsprojects/addressmap_unittest/addressmap_unittest.vcxproj +ADDRESSMAP_UNITTEST_INCLUDES = src/addressmap-inl.h \ + src/base/commandlineflags.h \ + $(LOGGING_INCLUDES) +addressmap_unittest_SOURCES = src/tests/addressmap_unittest.cc \ + $(ADDRESSMAP_UNITTEST_INCLUDES) +if MINGW +addressmap_unittest_SOURCES += src/windows/port.h src/windows/port.cc +endif MINGW +addressmap_unittest_CXXFLAGS = -g $(AM_CXXFLAGS) +addressmap_unittest_LDADD = liblogging.la + +WINDOWS_PROJECTS += vsprojects/system-alloc_unittest/system-alloc_unittest.vcxproj +if !MINGW +TESTS += system_alloc_unittest +system_alloc_unittest_SOURCES = src/config_for_unittests.h \ + src/tests/system-alloc_unittest.cc +system_alloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +system_alloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +system_alloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +endif !MINGW + +TESTS += packed_cache_test +WINDOWS_PROJECTS += vsprojects/packed-cache_test/packed-cache_test.vcxproj +packed_cache_test_SOURCES = src/tests/packed-cache_test.cc +packed_cache_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +packed_cache_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +packed_cache_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += frag_unittest +WINDOWS_PROJECTS += vsprojects/frag_unittest/frag_unittest.vcxproj +frag_unittest_SOURCES = src/tests/frag_unittest.cc src/config_for_unittests.h +frag_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +frag_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +frag_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += markidle_unittest +WINDOWS_PROJECTS += vsprojects/markidle_unittest/markidle_unittest.vcxproj +markidle_unittest_SOURCES = src/tests/markidle_unittest.cc \ + src/config_for_unittests.h \ + src/tests/testutil.h src/tests/testutil.cc +markidle_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +markidle_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +markidle_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += current_allocated_bytes_test +WINDOWS_PROJECTS += vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcxproj +current_allocated_bytes_test_SOURCES = src/tests/current_allocated_bytes_test.cc \ + src/config_for_unittests.h +current_allocated_bytes_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +current_allocated_bytes_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +current_allocated_bytes_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += malloc_hook_test +WINDOWS_PROJECTS += vsprojects/malloc_hook_test/malloc_hook_test.vcxproj +malloc_hook_test_SOURCES = src/tests/malloc_hook_test.cc \ + src/config_for_unittests.h \ + src/base/logging.h \ + src/gperftools/malloc_hook.h \ + src/tests/testutil.h src/tests/testutil.cc +malloc_hook_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +malloc_hook_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +malloc_hook_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += malloc_extension_test +WINDOWS_PROJECTS += vsprojects/malloc_extension_test/malloc_extension_test.vcxproj +malloc_extension_test_SOURCES = src/tests/malloc_extension_test.cc \ + src/config_for_unittests.h \ + src/base/logging.h \ + src/gperftools/malloc_extension.h \ + src/gperftools/malloc_extension_c.h +malloc_extension_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +malloc_extension_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +malloc_extension_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +# This doesn't work with mingw, which links foo.a even though it +# doesn't set ENABLE_STATIC. TODO(csilvers): set enable_static=true +# in configure.ac:36? +if !MINGW +TESTS += malloc_extension_c_test +malloc_extension_c_test_SOURCES = src/tests/malloc_extension_c_test.c \ + src/gperftools/malloc_extension.h \ + src/gperftools/malloc_extension_c.h +malloc_extension_c_test_CFLAGS = $(PTHREAD_CFLAGS) $(AM_CFLAGS) +# -ansi here is just to help ensure the code is bog-standard C. +if GCC +malloc_extension_c_test_CFLAGS += -ansi +endif GCC +malloc_extension_c_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +malloc_extension_c_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) -lstdc++ -lm +endif !MINGW + +if !MINGW +if !OSX +TESTS += memalign_unittest +memalign_unittest_SOURCES = src/tests/memalign_unittest.cc \ + src/tcmalloc.h \ + src/config_for_unittests.h \ + src/tests/testutil.h src/tests/testutil.cc +memalign_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +memalign_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +memalign_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +endif !OSX +endif !MINGW + +TESTS += page_heap_test +WINDOWS_PROJECTS += vsprojects/page_heap_test/page_heap_test.vcxproj +page_heap_test_SOURCES = src/tests/page_heap_test.cc \ + src/config_for_unittests.h \ + src/base/logging.h \ + src/common.h \ + src/page_heap.h +page_heap_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +page_heap_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +page_heap_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += pagemap_unittest +WINDOWS_PROJECTS += vsprojects/pagemap_unittest/pagemap_unittest.vcxproj +pagemap_unittest_SOURCES = src/tests/pagemap_unittest.cc \ + src/config_for_unittests.h \ + src/base/logging.h \ + src/pagemap.h +pagemap_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +pagemap_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +pagemap_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += realloc_unittest +WINDOWS_PROJECTS += vsprojects/realloc_unittest/realloc_unittest.vcxproj +realloc_unittest_SOURCES = src/tests/realloc_unittest.cc \ + src/config_for_unittests.h \ + src/base/logging.h +realloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +realloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +realloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += stack_trace_table_test +WINDOWS_PROJECTS += vsprojects/stack_trace_table_test/stack_trace_table_test.vcxproj +stack_trace_table_test_SOURCES = src/tests/stack_trace_table_test.cc \ + src/config_for_unittests.h +stack_trace_table_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +stack_trace_table_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +stack_trace_table_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +TESTS += thread_dealloc_unittest +WINDOWS_PROJECTS += vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcxproj +thread_dealloc_unittest_SOURCES = src/tests/thread_dealloc_unittest.cc \ + src/config_for_unittests.h \ + src/tests/testutil.h src/tests/testutil.cc +thread_dealloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +thread_dealloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +thread_dealloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) + +### Documentation +dist_doc_DATA += docs/tcmalloc.html \ + docs/overview.gif \ + docs/pageheap.gif \ + docs/spanmap.gif \ + docs/threadheap.gif \ + docs/t-test1.times.txt \ + docs/tcmalloc-opspercpusec.vs.threads.1024.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.128.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.131072.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.16384.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.2048.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.256.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.32768.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.4096.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.512.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.64.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.65536.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.8192.bytes.png \ + docs/tcmalloc-opspersec.vs.size.1.threads.png \ + docs/tcmalloc-opspersec.vs.size.12.threads.png \ + docs/tcmalloc-opspersec.vs.size.16.threads.png \ + docs/tcmalloc-opspersec.vs.size.2.threads.png \ + docs/tcmalloc-opspersec.vs.size.20.threads.png \ + docs/tcmalloc-opspersec.vs.size.3.threads.png \ + docs/tcmalloc-opspersec.vs.size.4.threads.png \ + docs/tcmalloc-opspersec.vs.size.5.threads.png \ + docs/tcmalloc-opspersec.vs.size.8.threads.png + +# I don't know how to say "distribute the .dot files but don't install them"; +# noinst doesn't seem to work with data. I separate them out anyway, in case +# one day we figure it out. Regardless, installing the dot files isn't the +# end of the world. +dist_doc_DATA += docs/overview.dot \ + docs/pageheap.dot \ + docs/spanmap.dot \ + docs/threadheap.dot + + +### ------- tcmalloc_minimal_debug (thread-caching malloc with debugallocation) + +if WITH_DEBUGALLOC + +lib_LTLIBRARIES += libtcmalloc_minimal_debug.la +libtcmalloc_minimal_debug_la_SOURCES = src/debugallocation.cc \ + $(TCMALLOC_MINIMAL_INCLUDES) +libtcmalloc_minimal_debug_la_CXXFLAGS = $(libtcmalloc_minimal_la_CXXFLAGS) \ + -DTCMALLOC_FOR_DEBUGALLOCATION +# version_info gets passed to libtool +libtcmalloc_minimal_debug_la_LDFLAGS = $(libtcmalloc_minimal_la_LDFLAGS) \ + -version-info @TCMALLOC_SO_VERSION@ +libtcmalloc_minimal_debug_la_LIBADD = $(libtcmalloc_minimal_la_LIBADD) + +LIBS_TO_WEAKEN += libtcmalloc_minimal_debug.la + +### Unittests + +TESTS += tcmalloc_minimal_debug_unittest +tcmalloc_minimal_debug_unittest_SOURCES = $(tcmalloc_minimal_unittest_SOURCES) +tcmalloc_minimal_debug_unittest_CXXFLAGS = $(tcmalloc_minimal_unittest_CXXFLAGS) \ + -DDEBUGALLOCATION +tcmalloc_minimal_debug_unittest_LDFLAGS = $(tcmalloc_minimal_unittest_LDFLAGS) +tcmalloc_minimal_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS) + +TESTS += malloc_extension_debug_test +malloc_extension_debug_test_SOURCES = $(malloc_extension_test_SOURCES) +malloc_extension_debug_test_CXXFLAGS = $(malloc_extension_test_CXXFLAGS) +malloc_extension_debug_test_LDFLAGS = $(malloc_extension_test_LDFLAGS) +malloc_extension_debug_test_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS) + +if !MINGW +if !OSX +TESTS += memalign_debug_unittest +memalign_debug_unittest_SOURCES = $(memalign_unittest_SOURCES) +memalign_debug_unittest_CXXFLAGS = $(memalign_unittest_CXXFLAGS) +memalign_debug_unittest_LDFLAGS = $(memalign_unittest_LDFLAGS) +memalign_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS) +endif !OSX +endif !MINGW + +TESTS += realloc_debug_unittest +realloc_debug_unittest_SOURCES = $(realloc_unittest_SOURCES) +realloc_debug_unittest_CXXFLAGS = $(realloc_unittest_CXXFLAGS) +realloc_debug_unittest_LDFLAGS = $(realloc_unittest_LDFLAGS) +realloc_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS) + +# debugallocation_test checks that we print a proper stacktrace when +# debug-allocs fail, so we can't run it if we don't have stacktrace info. +if WITH_STACK_TRACE +TESTS += debugallocation_test.sh$(EXEEXT) +debugallocation_test_sh_SOURCES = src/tests/debugallocation_test.sh +noinst_SCRIPTS += $(debugallocation_test_sh_SOURCES) +debugallocation_test.sh$(EXEEXT): $(top_srcdir)/$(debugallocation_test_sh_SOURCES) \ + debugallocation_test + rm -f $@ + cp -p $(top_srcdir)/$(debugallocation_test_sh_SOURCES) $@ + +# This is the sub-program used by debugallocation_test.sh +noinst_PROGRAMS += debugallocation_test +debugallocation_test_SOURCES = src/tests/debugallocation_test.cc +debugallocation_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +debugallocation_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +debugallocation_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) +endif WITH_STACK_TRACE + +endif WITH_DEBUGALLOC + +if !MINGW +noinst_LTLIBRARIES += librun_benchmark.la +librun_benchmark_la_SOURCES = \ + benchmark/run_benchmark.c benchmark/run_benchmark.h + +noinst_PROGRAMS += malloc_bench malloc_bench_shared \ + binary_trees binary_trees_shared + +malloc_bench_SOURCES = benchmark/malloc_bench.cc +malloc_bench_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +malloc_bench_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +if ENABLE_STATIC +malloc_bench_LDFLAGS += -static +endif ENABLE_STATIC +malloc_bench_LDADD = librun_benchmark.la libtcmalloc_minimal.la $(PTHREAD_LIBS) + +malloc_bench_shared_SOURCES = benchmark/malloc_bench.cc +malloc_bench_shared_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +malloc_bench_shared_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +malloc_bench_shared_LDADD = librun_benchmark.la libtcmalloc_minimal.la $(PTHREAD_LIBS) + +if WITH_HEAP_PROFILER_OR_CHECKER + +noinst_PROGRAMS += malloc_bench_shared_full +malloc_bench_shared_full_SOURCES = benchmark/malloc_bench.cc +malloc_bench_shared_full_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +malloc_bench_shared_full_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +malloc_bench_shared_full_LDADD = librun_benchmark.la libtcmalloc.la $(PTHREAD_LIBS) + +endif WITH_HEAP_PROFILER_OR_CHECKER + +binary_trees_SOURCES = benchmark/binary_trees.cc +binary_trees_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +binary_trees_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +if ENABLE_STATIC +binary_trees_LDFLAGS += -static +endif ENABLE_STATIC +binary_trees_LDADD = libtcmalloc_minimal.la $(PTHREAD_LIBS) + +binary_trees_shared_SOURCES = benchmark/binary_trees.cc +binary_trees_shared_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +binary_trees_shared_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +binary_trees_shared_LDADD = libtcmalloc_minimal.la $(PTHREAD_LIBS) +endif !MINGW + +### ------- tcmalloc (thread-caching malloc + heap profiler + heap checker) + +if WITH_HEAP_PROFILER_OR_CHECKER + +### The header files we use. We divide into categories based on directory +S_TCMALLOC_INCLUDES = $(S_TCMALLOC_MINIMAL_INCLUDES) \ + $(LOGGING_INCLUDES) \ + src/addressmap-inl.h \ + src/raw_printer.h \ + src/base/elfcore.h \ + src/base/googleinit.h \ + src/base/linux_syscall_support.h \ + src/base/linuxthreads.h \ + src/base/stl_allocator.h \ + src/base/sysinfo.h \ + src/base/thread_lister.h \ + src/heap-profile-table.h \ + src/heap-profile-stats.h \ + src/maybe_emergency_malloc.h \ + src/emergency_malloc.h + +SG_TCMALLOC_INCLUDES = src/gperftools/heap-profiler.h \ + src/gperftools/heap-checker.h +TCMALLOC_INCLUDES = $(S_TCMALLOC_INCLUDES) $(SG_TCMALLOC_MINIMAL_INCLUDES) \ + $(SG_TCMALLOC_INCLUDES) $(SG_STACKTRACE_INCLUDES) +perftoolsinclude_HEADERS += $(SG_TCMALLOC_INCLUDES) + +if BUILD_EMERGENCY_MALLOC +EMERGENCY_MALLOC_CC = src/emergency_malloc.cc src/emergency_malloc_for_stacktrace.cc +EMERGENCY_MALLOC_DEFINE = -DENABLE_EMERGENCY_MALLOC +else !BUILD_EMERGENCY_MALLOC +EMERGENCY_MALLOC_CC = src/fake_stacktrace_scope.cc +EMERGENCY_MALLOC_DEFINE = +endif !BUILD_EMERGENCY_MALLOC + +### Making the library + +if WITH_HEAP_CHECKER +# heap-checker-bcad is last, in hopes its global ctor will run first. +# (Note this is added to libtcmalloc.la, not libtcmalloc_internal.la, +# but that's ok; the internal/external distinction is only useful for +# cygwin, and cygwin doesn't use HEAP_CHECKER anyway.) +HEAP_CHECKER_SOURCES = src/base/thread_lister.c \ + src/base/linuxthreads.cc \ + src/heap-checker.cc \ + src/heap-checker-bcad.cc +MAYBE_NO_HEAP_CHECK = +else !WITH_HEAP_CHECKER +HEAP_CHECKER_SOURCES = +MAYBE_NO_HEAP_CHECK = -DNO_HEAP_CHECK +endif !WITH_HEAP_CHECKER + +noinst_LTLIBRARIES += libtcmalloc_internal.la +libtcmalloc_internal_la_SOURCES = $(libtcmalloc_minimal_internal_la_SOURCES) \ + $(TCMALLOC_INCLUDES) \ + src/base/low_level_alloc.cc \ + src/heap-profile-table.cc \ + src/heap-profiler.cc \ + src/raw_printer.cc \ + $(EMERGENCY_MALLOC_CC) \ + src/memory_region_map.cc +libtcmalloc_internal_la_CXXFLAGS = $(PTHREAD_CFLAGS) -DNDEBUG \ + $(AM_CXXFLAGS) $(EMERGENCY_MALLOC_DEFINE) \ + $(MAYBE_NO_HEAP_CHECK) +libtcmalloc_internal_la_LDFLAGS = $(PTHREAD_CFLAGS) +libtcmalloc_internal_la_LIBADD = libstacktrace.la $(PTHREAD_LIBS) + +lib_LTLIBRARIES += libtcmalloc.la +libtcmalloc_la_SOURCES = $(TCMALLOC_CC) $(TCMALLOC_INCLUDES) \ + $(HEAP_CHECKER_SOURCES) +libtcmalloc_la_CXXFLAGS = $(PTHREAD_CFLAGS) -DNDEBUG $(AM_CXXFLAGS) \ + $(MAYBE_NO_HEAP_CHECK) $(EMERGENCY_MALLOC_DEFINE) +libtcmalloc_la_LDFLAGS = $(PTHREAD_CFLAGS) -version-info @TCMALLOC_SO_VERSION@ +libtcmalloc_la_LIBADD = libtcmalloc_internal.la libmaybe_threads.la $(PTHREAD_LIBS) + +# same as above with without -DNDEBUG +noinst_LTLIBRARIES += libtcmalloc_internal_with_asserts.la +libtcmalloc_internal_with_asserts_la_SOURCES = $(libtcmalloc_internal_la_SOURCES) +libtcmalloc_internal_with_asserts_la_CXXFLAGS = $(PTHREAD_CFLAGS) \ + $(AM_CXXFLAGS) $(EMERGENCY_MALLOC_DEFINE) \ + $(MAYBE_NO_HEAP_CHECK) +libtcmalloc_internal_with_asserts_la_LDFLAGS = $(PTHREAD_CFLAGS) +libtcmalloc_internal_with_asserts_la_LIBADD = libstacktrace.la $(PTHREAD_LIBS) + +noinst_LTLIBRARIES += libtcmalloc_with_asserts.la +libtcmalloc_with_asserts_la_SOURCES = $(libtcmalloc_la_SOURCES) +libtcmalloc_with_asserts_la_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) \ + $(MAYBE_NO_HEAP_CHECK) $(EMERGENCY_MALLOC_DEFINE) +libtcmalloc_with_asserts_la_LDFLAGS = $(PTHREAD_CFLAGS) +libtcmalloc_with_asserts_la_LIBADD = libtcmalloc_internal_with_asserts.la libmaybe_threads.la $(PTHREAD_LIBS) + +LIBTCMALLOC = libtcmalloc.la + +LIBS_TO_WEAKEN += libtcmalloc.la + +### Unittests + +TESTS += tcmalloc_unittest.sh$(EXEEXT) +tcmalloc_unittest_sh_SOURCES = src/tests/tcmalloc_unittest.sh +noinst_SCRIPTS += $(tcmalloc_unittest_sh_SOURCES) +tcmalloc_unittest.sh$(EXEEXT): $(top_srcdir)/$(tcmalloc_unittest_sh_SOURCES) \ + tcmalloc_unittest + rm -f $@ + cp -p $(top_srcdir)/$(tcmalloc_unittest_sh_SOURCES) $@ + +noinst_PROGRAMS += tcmalloc_unittest +tcmalloc_unittest_INCLUDES = src/config_for_unittests.h \ + src/gperftools/malloc_extension.h +tcmalloc_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ + src/tcmalloc.h \ + src/tests/testutil.h src/tests/testutil.cc \ + $(TCMALLOC_UNITTEST_INCLUDES) +tcmalloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +# We also put pthreads after tcmalloc, because some pthread +# implementations define their own malloc, and we need to go on the +# first linkline to make sure our malloc 'wins'. +tcmalloc_unittest_LDADD = $(LIBTCMALLOC) liblogging.la $(PTHREAD_LIBS) + +TESTS += tcm_asserts_unittest +tcm_asserts_unittest_INCLUDES = src/config_for_unittests.h \ + src/gperftools/malloc_extension.h +tcm_asserts_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ + src/tcmalloc.h \ + src/tests/testutil.h src/tests/testutil.cc \ + $(TCMALLOC_UNITTEST_INCLUDES) +tcm_asserts_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcm_asserts_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcm_asserts_unittest_LDADD = libtcmalloc_with_asserts.la liblogging.la $(PTHREAD_LIBS) + +# This makes sure it's safe to link in both tcmalloc and +# tcmalloc_minimal. (One would never do this on purpose, but perhaps +# by accident...) When we can compile libprofiler, we also link it in +# to make sure that works too. NOTE: On OS X, it's *not* safe to +# link both in (we end up with two copies of every global var, and +# the code tends to pick one arbitrarily), so don't run the test there. +# (We define these outside the 'if' because they're reused below.) +tcmalloc_both_unittest_srcs = src/tests/tcmalloc_unittest.cc \ + src/tests/testutil.h src/tests/testutil.cc \ + $(TCMALLOC_UNITTEST_INCLUDES) +tcmalloc_both_unittest_cflags = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_both_unittest_lflags = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +if WITH_CPU_PROFILER +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +# We also put pthreads after tcmalloc, because some pthread +# implementations define their own malloc, and we need to go on the +# first linkline to make sure our malloc 'wins'. +tcmalloc_both_unittest_ladd = $(LIBTCMALLOC) $(LIBTCMALLOC_MINIMAL) \ + libprofiler.la liblogging.la $(PTHREAD_LIBS) +else +tcmalloc_both_unittest_ladd = $(LIBTCMALLOC) $(LIBTCMALLOC_MINIMAL) \ + liblogging.la $(PTHREAD_LIBS) +endif !WITH_CPU_PROFILER +if !OSX +TESTS += tcmalloc_both_unittest +tcmalloc_both_unittest_SOURCES = $(tcmalloc_both_unittest_srcs) +tcmalloc_both_unittest_CXXFLAGS = $(tcmalloc_both_unittest_cflags) +tcmalloc_both_unittest_LDFLAGS = $(tcmalloc_both_unittest_lflags) +tcmalloc_both_unittest_LDADD = $(tcmalloc_both_unittest_ladd) +endif !OSX + +TESTS += tcmalloc_large_unittest +tcmalloc_large_unittest_SOURCES = src/tests/tcmalloc_large_unittest.cc +tcmalloc_large_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_large_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcmalloc_large_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) + +TESTS += tcmalloc_large_heap_fragmentation_unittest +tcmalloc_large_heap_fragmentation_unittest_SOURCES = src/tests/large_heap_fragmentation_unittest.cc +tcmalloc_large_heap_fragmentation_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_large_heap_fragmentation_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcmalloc_large_heap_fragmentation_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) + +TESTS += raw_printer_test +raw_printer_test_SOURCES = src/tests/raw_printer_test.cc +raw_printer_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +raw_printer_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +raw_printer_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) + +# sampler_test and sampling_test both require sampling to be turned +# on, which it's not by default. Use the "standard" value of 2^19. +TESTS_ENVIRONMENT += TCMALLOC_SAMPLE_PARAMETER=524288 + +TESTS += sampler_test +WINDOWS_PROJECTS += vsprojects/sampler_test/sampler_test.vcxproj +sampler_test_SOURCES = src/tests/sampler_test.cc \ + src/config_for_unittests.h +sampler_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +sampler_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +sampler_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) -lm + + +# These unittests often need to run binaries. They're in the current dir +TESTS_ENVIRONMENT += BINDIR=. +TESTS_ENVIRONMENT += TMPDIR=/tmp/perftools + +TESTS += sampling_test.sh$(EXEEXT) +sampling_test_sh_SOURCES = src/tests/sampling_test.sh +noinst_SCRIPTS += $(sampling_test_sh_SOURCES) +sampling_test.sh$(EXEEXT): $(top_srcdir)/$(sampling_test_sh_SOURCES) \ + sampling_test + rm -f $@ + cp -p $(top_srcdir)/$(sampling_test_sh_SOURCES) $@ + +# This is the sub-program used by sampling_test.sh +# The -g is so pprof can get symbol information. +noinst_PROGRAMS += sampling_test +SAMPLING_TEST_INCLUDES = src/config_for_unittests.h \ + src/base/logging.h \ + src/gperftools/malloc_extension.h +sampling_test_SOURCES = src/tests/sampling_test.cc \ + $(SAMPLING_TEST_INCLUDES) +sampling_test_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +sampling_test_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +sampling_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) + +endif WITH_HEAP_PROFILER_OR_CHECKER + +if WITH_HEAP_PROFILER + +TESTS += heap-profiler_unittest.sh$(EXEEXT) +heap_profiler_unittest_sh_SOURCES = src/tests/heap-profiler_unittest.sh +noinst_SCRIPTS += $(heap_profiler_unittest_sh_SOURCES) +heap-profiler_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) \ + heap-profiler_unittest + rm -f $@ + cp -p $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) $@ + +# These are sub-programs used by heap-profiler_unittest.sh +noinst_PROGRAMS += heap-profiler_unittest +HEAP_PROFILER_UNITTEST_INCLUDES = src/config_for_unittests.h \ + src/gperftools/heap-profiler.h +heap_profiler_unittest_SOURCES = src/tests/heap-profiler_unittest.cc \ + $(HEAP_PROFILER_UNITTEST_INCLUDES) +heap_profiler_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +heap_profiler_unittest_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +heap_profiler_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) + +# Tests the compatibility include-headers in google/. Requires a function +# defined in the heap-profiler, which is why the test lives here. +TESTS += simple_compat_test +simple_compat_test_SOURCES = src/tests/simple_compat_test.cc \ + $(googleinclude_HEADERS) +simple_compat_test_LDFLAGS = $(TCMALLOC_FLAGS) +simple_compat_test_LDADD = $(LIBTCMALLOC) + +endif WITH_HEAP_PROFILER + +if WITH_HEAP_CHECKER + +TESTS += heap-checker_unittest.sh$(EXEEXT) +heap_checker_unittest_sh_SOURCES = src/tests/heap-checker_unittest.sh +noinst_SCRIPTS += $(heap_checker_unittest_sh_SOURCES) +heap-checker_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) \ + heap-checker_unittest + rm -f $@ + cp -p $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) $@ + +TESTS += heap-checker-death_unittest.sh$(EXEEXT) +heap_checker_death_unittest_sh_SOURCES = src/tests/heap-checker-death_unittest.sh +noinst_SCRIPTS += $(top_srcdir)/$(heap_checker_death_unittest_sh_SOURCES) +heap-checker-death_unittest.sh$(EXEEXT): $(heap_checker_death_unittest_sh_SOURCES) \ + heap-checker_unittest + rm -f $@ + cp -p $(top_srcdir)/$(heap_checker_death_unittest_sh_SOURCES) $@ + +# These are sub-programs used by heap-checker_unittest.sh +noinst_PROGRAMS += heap-checker_unittest +HEAP_CHECKER_UNITTEST_INCLUDES = src/config_for_unittests.h \ + src/memory_region_map.h \ + src/base/commandlineflags.h \ + src/base/googleinit.h \ + src/gperftools/heap-checker.h \ + $(LOGGING_INCLUDES) +heap_checker_unittest_SOURCES = src/tests/heap-checker_unittest.cc \ + $(HEAP_CHECKER_UNITTEST_INCLUDES) +heap_checker_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +heap_checker_unittest_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +# We also put pthreads after tcmalloc, because some pthread +# implementations define their own malloc, and we need to go on the +# first linkline to make sure our malloc 'wins'. +heap_checker_unittest_LDADD = $(LIBTCMALLOC) liblogging.la $(PTHREAD_LIBS) + +endif WITH_HEAP_CHECKER + +### Documentation (above and beyond tcmalloc_minimal documentation) +if WITH_HEAP_PROFILER +dist_doc_DATA += docs/heapprofile.html docs/heap-example1.png +endif WITH_HEAP_PROFILER + +if WITH_HEAP_CHECKER +dist_doc_DATA += docs/heap_checker.html +endif WITH_HEAP_CHECKER + + +### ------- tcmalloc with debugallocation + +if WITH_DEBUGALLOC +if WITH_HEAP_PROFILER_OR_CHECKER + +lib_LTLIBRARIES += libtcmalloc_debug.la +libtcmalloc_debug_la_SOURCES = src/debugallocation.cc $(HEAP_CHECKER_SOURCES) \ + $(TCMALLOC_INCLUDES) +libtcmalloc_debug_la_CXXFLAGS = $(libtcmalloc_la_CXXFLAGS) \ + -DTCMALLOC_FOR_DEBUGALLOCATION +libtcmalloc_debug_la_LDFLAGS = $(libtcmalloc_la_LDFLAGS) \ + -version-info @TCMALLOC_SO_VERSION@ +libtcmalloc_debug_la_LIBADD = $(libtcmalloc_la_LIBADD) + +LIBS_TO_WEAKEN += libtcmalloc_debug.la + +### Unittests + +TESTS += tcmalloc_debug_unittest +tcmalloc_debug_unittest_SOURCES = $(tcmalloc_unittest_SOURCES) +tcmalloc_debug_unittest_CXXFLAGS = $(tcmalloc_unittest_CXXFLAGS) \ + -DDEBUGALLOCATION +tcmalloc_debug_unittest_LDFLAGS = $(tcmalloc_unittest_LDFLAGS) +tcmalloc_debug_unittest_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) + +TESTS += sampler_debug_test +sampler_debug_test_SOURCES = $(sampler_test_SOURCES) +sampler_debug_test_CXXFLAGS = $(samples_test_CXXFLAGS) +sampler_debug_test_LDFLAGS = $(sampler_test_LDFLAGS) +sampler_debug_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) -lm + +TESTS += sampling_debug_test.sh$(EXEEXT) +sampling_debug_test_sh_SOURCES = src/tests/sampling_test.sh +sampling_debug_test.sh$(EXEEXT): $(top_srcdir)/$(sampling_test_sh_SOURCES) \ + sampling_debug_test + rm -f $@ + cp -p $(top_srcdir)/$(sampling_test_sh_SOURCES) $@ + +# This is the sub-program using by sampling_debug_test.sh +# The -g is so pprof can get symbol information. +noinst_PROGRAMS += sampling_debug_test +sampling_debug_test_SOURCES = $(sampling_test_SOURCES) +sampling_debug_test_CXXFLAGS = $(sampling_test_CXXFLAGS) +sampling_debug_test_LDFLAGS = $(sampling_test_LDFLAGS) +sampling_debug_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) + +endif WITH_HEAP_PROFILER_OR_CHECKER + +if WITH_HEAP_PROFILER + +TESTS += heap-profiler_debug_unittest.sh$(EXEEXT) +heap_profiler_debug_unittest_sh_SOURCES = src/tests/heap-profiler_unittest.sh +heap-profiler_debug_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) \ + heap-profiler_debug_unittest + rm -f $@ + cp -p $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) $@ + +# These are sub-programs used by heap-profiler_debug_unittest.sh +noinst_PROGRAMS += heap-profiler_debug_unittest +heap_profiler_debug_unittest_SOURCES = $(heap_profiler_unittest_SOURCES) +heap_profiler_debug_unittest_CXXFLAGS = $(heap_profiler_unittest_CXXFLAGS) +heap_profiler_debug_unittest_LDFLAGS = $(heap_profiler_unittest_LDFLAGS) +heap_profiler_debug_unittest_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) + +endif WITH_HEAP_PROFILER + +if WITH_HEAP_CHECKER + +TESTS += heap-checker_debug_unittest.sh$(EXEEXT) +heap_checker_debug_unittest_sh_SOURCES = src/tests/heap-checker_unittest.sh +heap-checker_debug_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) \ + heap-checker_debug_unittest + rm -f $@ + cp -p $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) $@ + +# These are sub-programs used by heap-checker_debug_unittest.sh +noinst_PROGRAMS += heap-checker_debug_unittest +heap_checker_debug_unittest_SOURCES = $(heap_checker_unittest_SOURCES) +heap_checker_debug_unittest_CXXFLAGS = $(heap_checker_unittest_CXXFLAGS) +heap_checker_debug_unittest_LDFLAGS = $(heap_checker_unittest_LDFLAGS) +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +heap_checker_debug_unittest_LDADD = libtcmalloc_debug.la liblogging.la \ + $(PTHREAD_LIBS) + +endif WITH_HEAP_CHECKER +endif WITH_DEBUGALLOC + + +### ------- CPU profiler + +if WITH_CPU_PROFILER + +### The header files we use. We divide into categories based on directory +S_CPU_PROFILER_INCLUDES = src/profiledata.h \ + src/profile-handler.h \ + src/getpc.h \ + src/base/basictypes.h \ + src/base/commandlineflags.h \ + src/base/googleinit.h \ + src/base/logging.h \ + src/base/simple_mutex.h \ + src/base/sysinfo.h \ + $(SPINLOCK_INCLUDES) \ + $(LOGGING_INCLUDES) +SG_CPU_PROFILER_INCLUDES = src/gperftools/profiler.h +CPU_PROFILER_INCLUDES = $(S_CPU_PROFILER_INCLUDES) $(SG_CPU_PROFILER_INCLUDES) \ + $(SG_STACKTRACE_INCLUDES) +perftoolsinclude_HEADERS += $(SG_CPU_PROFILER_INCLUDES) + +### Making the library +lib_LTLIBRARIES += libprofiler.la +libprofiler_la_SOURCES = src/profiler.cc \ + src/profile-handler.cc \ + src/profiledata.cc \ + $(CPU_PROFILER_INCLUDES) +libprofiler_la_LIBADD = libstacktrace.la libmaybe_threads.la libfake_stacktrace_scope.la +# We have to include ProfileData for profiledata_unittest +CPU_PROFILER_SYMBOLS = '(ProfilerStart|ProfilerStartWithOptions|ProfilerStop|ProfilerFlush|ProfilerEnable|ProfilerDisable|ProfilingIsEnabledForAllThreads|ProfilerRegisterThread|ProfilerGetCurrentState|ProfilerState|ProfileData|ProfileHandler|ProfilerGetStackTrace)' +libprofiler_la_LDFLAGS = -export-symbols-regex $(CPU_PROFILER_SYMBOLS) \ + -version-info @PROFILER_SO_VERSION@ + +# See discussion above (under LIBTCMALLOC_MINIMAL) for why we do this. +# Basically it's to work around systems where --rpath doesn't work right. +LIBPROFILER = libstacktrace.la libprofiler.la + +### Unittests +TESTS += getpc_test +#WINDOWS_PROJECTS += vsprojects/getpc_test/getpc_test.vcxproj +getpc_test_SOURCES = src/tests/getpc_test.cc src/getpc.h + +TESTS += profiledata_unittest +#WINDOWS_PROJECTS += vsprojects/profiledata_unittest/profiledata_unittest.vcxproj +profiledata_unittest_SOURCES = src/tests/profiledata_unittest.cc \ + src/profiledata.h \ + src/base/commandlineflags.h \ + src/base/logging.h \ + src/base/basictypes.h +profiledata_unittest_LDADD = $(LIBPROFILER) + +TESTS += profile_handler_unittest +profile_handler_unittest_SOURCES = src/tests/profile-handler_unittest.cc \ + src/profile-handler.h +profile_handler_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) +profile_handler_unittest_LDFLAGS = $(PTHREAD_CFLAGS) +profile_handler_unittest_LDADD = $(LIBPROFILER) $(PTHREAD_LIBS) + +TESTS += profiler_unittest.sh$(EXEEXT) +profiler_unittest_sh_SOURCES = src/tests/profiler_unittest.sh +noinst_SCRIPTS += $(profiler_unittest_sh_SOURCES) +profiler_unittest.sh$(EXEEXT): $(top_srcdir)/$(profiler_unittest_sh_SOURCES) \ + profiler1_unittest profiler2_unittest \ + profiler3_unittest profiler4_unittest + rm -f $@ + cp -p $(top_srcdir)/$(profiler_unittest_sh_SOURCES) $@ + +# These are sub-programs used by profiler_unittest.sh +noinst_PROGRAMS += profiler1_unittest profiler2_unittest profiler3_unittest \ + profiler4_unittest +PROFILER_UNITTEST_INCLUDES = src/config_for_unittests.h \ + src/gperftools/profiler.h +PROFILER_UNITTEST_SRCS = src/tests/profiler_unittest.cc \ + src/tests/testutil.h src/tests/testutil.cc \ + $(PROFILER_UNITTEST_INCLUDES) +profiler1_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS) +profiler1_unittest_CXXFLAGS = -g -DNO_THREADS $(AM_CXXFLAGS) +profiler1_unittest_LDADD = $(LIBPROFILER) +profiler2_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS) +profiler2_unittest_CXXFLAGS = -g -DNO_THREADS $(AM_CXXFLAGS) +profiler2_unittest_LDADD = -lstacktrace -lprofiler +# We depend on -lprofiler but haven't yet said how to build it. Do so now. +profiler2_unittest_DEPENDENCIES = $(LIBPROFILER) +profiler3_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS) +profiler3_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +profiler3_unittest_LDFLAGS = $(PTHREAD_CFLAGS) +profiler3_unittest_LDADD = $(LIBPROFILER) $(PTHREAD_LIBS) +profiler4_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS) +profiler4_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +profiler4_unittest_LDFLAGS = $(PTHREAD_CFLAGS) +profiler4_unittest_LDADD = -lstacktrace -lprofiler $(PTHREAD_LIBS) +# We depend on -lprofiler but haven't yet said how to build it. Do so now. +profiler4_unittest_DEPENDENCIES = $(LIBPROFILER) + + +### Documentation +dist_doc_DATA += docs/cpuprofile.html \ + docs/cpuprofile-fileformat.html \ + docs/pprof-test-big.gif \ + docs/pprof-test.gif \ + docs/pprof-vsnprintf-big.gif \ + docs/pprof-vsnprintf.gif + +endif WITH_CPU_PROFILER + + +### ------- CPU profiler and heap checker, in one! + +# Ideally, folks who wanted to use both tcmalloc and libprofiler, +# could just link them both into their application. But while this +# works fine for .so files, it does not for .a files. The easiest way +# around this -- and I've tried a bunch of the hard ways -- is to just +# to create another set of libraries that has both functionality in it. + +if WITH_HEAP_PROFILER_OR_CHECKER +if WITH_CPU_PROFILER + +lib_LTLIBRARIES += libtcmalloc_and_profiler.la +libtcmalloc_and_profiler_la_SOURCES = $(libtcmalloc_la_SOURCES) $(libprofiler_la_SOURCES) +libtcmalloc_and_profiler_la_CXXFLAGS = $(libtcmalloc_la_CXXFLAGS) $(libprofiler_la_CXXFLAGS) +# Since this library is meant to be used as a .a, I don't worry as much +# about .so versioning. I just give the libtcmalloc version number. +# TODO(csilvers): use -export-symbols-regex? +libtcmalloc_and_profiler_la_LDFLAGS = $(PTHREAD_CFLAGS) \ + -version-info @TCMALLOC_AND_PROFILER_SO_VERSION@ +# We don't include libprofiler_la_LIBADD here because all it adds is +# libstacktrace.la, which we already get via libtcmalloc. Trying to +# specify it twice causes link-time duplicate-definition errors. :-( +libtcmalloc_and_profiler_la_LIBADD = $(libtcmalloc_la_LIBADD) + +TESTS += tcmalloc_and_profiler_unittest +tcmalloc_and_profiler_unittest_SOURCES = $(tcmalloc_both_unittest_srcs) +tcmalloc_and_profiler_unittest_CXXFLAGS = $(tcmalloc_both_unittest_cflags) +tcmalloc_and_profiler_unittest_LDFLAGS = $(tcmalloc_both_unittest_lflags) +tcmalloc_and_profiler_unittest_LDADD = libtcmalloc_and_profiler.la + +LIBS_TO_WEAKEN += libtcmalloc_and_profiler.la + +endif WITH_CPU_PROFILER +endif WITH_HEAP_PROFILER_OR_CHECKER + +## ^^^^ END OF RULES TO MAKE YOUR LIBRARIES, BINARIES, AND UNITTESTS + + +# Do the weakening on some exported libtcmalloc symbols. +install-exec-local: all-local +all-local: $(LIBS_TO_WEAKEN) + for la in $(LIBS_TO_WEAKEN); do lib=".libs/`basename $$la .la`.a"; [ ! -f "$$lib" ] || $(WEAKEN) "$$lib"; done + + +# This should always include $(TESTS), but may also include other +# binaries that you compile but don't want automatically installed. +# We'll add to this later, on a library-by-library basis +noinst_PROGRAMS += $(TESTS) + +rpm: dist-gzip packages/rpm.sh packages/rpm/rpm.spec + @cd packages && ./rpm.sh ${PACKAGE} ${VERSION} + +deb: dist-gzip packages/deb.sh packages/deb/* + @cd packages && ./deb.sh ${PACKAGE} ${VERSION} + +# http://linux.die.net/man/1/pkg-config, http://pkg-config.freedesktop.org/wiki +pkgconfigdir = $(libdir)/pkgconfig +pkgconfig_DATA = libtcmalloc.pc libtcmalloc_minimal.pc \ + libtcmalloc_debug.pc libtcmalloc_minimal_debug.pc \ + libprofiler.pc +CLEANFILES = $(pkgconfig_DATA) + +# I get the description and URL lines from the rpm spec. I use sed to +# try to rewrite exec_prefix, libdir, and includedir in terms of +# prefix, if possible. +libtcmalloc.pc: Makefile packages/rpm/rpm.spec + echo 'prefix=$(prefix)' > "$@".tmp + echo 'exec_prefix='`echo '$(exec_prefix)' | sed 's@^$(prefix)@$${prefix}@'` >> "$@".tmp + echo 'libdir='`echo '$(libdir)' | sed 's@^$(exec_prefix)@$${exec_prefix}@'` >> "$@".tmp + echo 'includedir='`echo '$(includedir)' | sed 's@^$(prefix)@$${prefix}@'` >> "$@".tmp + echo '' >> "$@".tmp + echo 'Name: $(PACKAGE)' >> "$@".tmp + echo 'Version: $(VERSION)' >> "$@".tmp + -grep '^Summary:' $(top_srcdir)/packages/rpm/rpm.spec | sed s/^Summary:/Description:/ | head -n1 >> "$@".tmp + -grep '^URL: ' $(top_srcdir)/packages/rpm/rpm.spec >> "$@".tmp + echo 'Requires:' >> "$@".tmp + echo 'Libs: -L$${libdir} -ltcmalloc' >> "$@".tmp + echo 'Libs.private: $(PTHREAD_CFLAGS) $(PTHREAD_LIBS)' >> "$@".tmp + echo 'Cflags: -I$${includedir}' >> "$@".tmp + mv -f "$@".tmp "$@" + +# The other versions are mostly the same. +libtcmalloc_minimal.pc: libtcmalloc.pc + cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_minimal/ > "$@" + +libtcmalloc_debug.pc: libtcmalloc.pc + cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_debug/ > "$@" + +libtcmalloc_minimal_debug.pc: libtcmalloc.pc + cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_minimal_debug/ > "$@" + +libprofiler.pc: libtcmalloc.pc + cat libtcmalloc.pc | sed s/-ltcmalloc/-lprofiler/ > "$@" + +libtool: $(LIBTOOL_DEPS) + $(SHELL) ./config.status --recheck + +@GENERATE_CHANGELOG_RULES@ + +# Windows wants write permission to .vcxproj files and maybe even sln files. +dist-hook: dist-ChangeLog + test -e "$(distdir)/vsprojects" \ + && chmod -R u+w $(distdir)/*.sln $(distdir)/vsprojects/ + +EXTRA_DIST = packages/rpm.sh packages/rpm/rpm.spec packages/deb.sh packages/deb \ + $(SCRIPTS) libtool \ + src/windows/get_mangled_names.cc src/windows/override_functions.cc \ + src/windows/config.h src/windows/gperftools/tcmalloc.h \ + docs/pprof.see_also src/windows/TODO \ + $(WINDOWS_PROJECTS) \ + src/solaris/libstdc++.la diff --git a/trunk/3rdparty/gperftools-2-fit/Makefile.in b/trunk/3rdparty/gperftools-2-fit/Makefile.in new file mode 100644 index 000000000..88872dcc3 --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/Makefile.in @@ -0,0 +1,8288 @@ +# Makefile.in generated by automake 1.16.3 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2020 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# Note: for every library we create, we're explicit about what symbols +# we export. In order to avoid complications with C++ mangling, we always +# use the regexp for of specifying symbols. + + + + + +VPATH = @srcdir@ +am__is_gnu_make = { \ + if test -z '$(MAKELEVEL)'; then \ + false; \ + elif test -n '$(MAKE_HOST)'; then \ + true; \ + elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \ + true; \ + else \ + false; \ + fi; \ +} +am__make_running_with_option = \ + case $${target_option-} in \ + ?) ;; \ + *) echo "am__make_running_with_option: internal error: invalid" \ + "target option '$${target_option-}' specified" >&2; \ + exit 1;; \ + esac; \ + has_opt=no; \ + sane_makeflags=$$MAKEFLAGS; \ + if $(am__is_gnu_make); then \ + sane_makeflags=$$MFLAGS; \ + else \ + case $$MAKEFLAGS in \ + *\\[\ \ ]*) \ + bs=\\; \ + sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \ + | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \ + esac; \ + fi; \ + skip_next=no; \ + strip_trailopt () \ + { \ + flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \ + }; \ + for flg in $$sane_makeflags; do \ + test $$skip_next = yes && { skip_next=no; continue; }; \ + case $$flg in \ + *=*|--*) continue;; \ + -*I) strip_trailopt 'I'; skip_next=yes;; \ + -*I?*) strip_trailopt 'I';; \ + -*O) strip_trailopt 'O'; skip_next=yes;; \ + -*O?*) strip_trailopt 'O';; \ + -*l) strip_trailopt 'l'; skip_next=yes;; \ + -*l?*) strip_trailopt 'l';; \ + -[dEDm]) skip_next=yes;; \ + -[JT]) skip_next=yes;; \ + esac; \ + case $$flg in \ + *$$target_option*) has_opt=yes; break;; \ + esac; \ + done; \ + test $$has_opt = yes +am__make_dryrun = (target_option=n; $(am__make_running_with_option)) +am__make_keepgoing = (target_option=k; $(am__make_running_with_option)) +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +@WITH_STACK_TRACE_FALSE@am__append_1 = -DNO_TCMALLOC_SAMPLES + +# These are good warnings to turn on by default. +@GCC_TRUE@am__append_2 = -Wall -Wwrite-strings -Woverloaded-virtual \ +@GCC_TRUE@ -Wno-sign-compare + + +# On i386, -mmmx is needed for the mmx-based instructions in +# atomicops-internal-x86.h. Also as of gcc 4.6, -fomit-frame-pointer +# is the default. Since we must always have frame pointers for I386 +# in order to generate backtraces we now specify -fno-omit-frame-pointer +# by default. +@GCC_TRUE@@I386_TRUE@am__append_3 = -mmmx -fno-omit-frame-pointer +@HAVE_W_NO_UNUSED_RESULT_TRUE@am__append_4 = -Wno-unused-result +@HAVE_SIZED_DEALLOCATION_TRUE@am__append_5 = -fsized-deallocation +@HAVE_F_ALIGNED_NEW_TRUE@am__append_6 = -faligned-new + +# These are x86-specific, having to do with frame-pointers. In +# particular, some x86_64 systems do not insert frame pointers by +# default (all i386 systems that I know of, do. I don't know about +# non-x86 chips). We need to tell perftools what to do about that. +@ENABLE_FRAME_POINTERS_FALSE@@OMIT_FP_BY_DEFAULT_TRUE@am__append_7 = -DNO_FRAME_POINTER + +# respect --enable-frame-pointers regardless of architecture +@ENABLE_FRAME_POINTERS_TRUE@am__append_8 = -fno-omit-frame-pointer +@MINGW_TRUE@am__append_9 = -Wl,-u__tcmalloc +TESTS = low_level_alloc_unittest$(EXEEXT) atomicops_unittest$(EXEEXT) \ + $(am__EXEEXT_11) tcmalloc_minimal_unittest$(EXEEXT) \ + tcm_min_asserts_unittest$(EXEEXT) \ + tcmalloc_minimal_large_unittest$(EXEEXT) \ + tcmalloc_minimal_large_heap_fragmentation_unittest$(EXEEXT) \ + $(am__append_23) addressmap_unittest$(EXEEXT) $(am__EXEEXT_12) \ + packed_cache_test$(EXEEXT) frag_unittest$(EXEEXT) \ + markidle_unittest$(EXEEXT) \ + current_allocated_bytes_test$(EXEEXT) \ + malloc_hook_test$(EXEEXT) malloc_extension_test$(EXEEXT) \ + $(am__EXEEXT_13) $(am__EXEEXT_14) page_heap_test$(EXEEXT) \ + pagemap_unittest$(EXEEXT) realloc_unittest$(EXEEXT) \ + stack_trace_table_test$(EXEEXT) \ + thread_dealloc_unittest$(EXEEXT) $(am__EXEEXT_15) \ + $(am__EXEEXT_16) $(am__EXEEXT_17) $(am__append_35) \ + $(am__EXEEXT_18) $(am__EXEEXT_19) $(am__EXEEXT_20) \ + $(am__EXEEXT_21) $(am__append_57) $(am__EXEEXT_22) \ + $(am__append_66) $(am__append_68) $(am__EXEEXT_23) \ + $(am__EXEEXT_24) +noinst_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \ + $(am__EXEEXT_4) $(am__EXEEXT_5) $(am__EXEEXT_6) \ + $(am__EXEEXT_7) $(am__EXEEXT_8) $(am__EXEEXT_9) \ + $(am__EXEEXT_10) $(am__EXEEXT_25) +bin_PROGRAMS = +@MINGW_TRUE@am__append_10 = libwindows.la libspinlock.la + +# We also need to tell mingw that sysinfo.cc needs shlwapi.lib. +# (We do this via a #pragma for msvc, but need to do it here for mingw). +@MINGW_TRUE@am__append_11 = -lshlwapi +# windows has its own system for threads and system memory allocation. +@HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE@@MINGW_TRUE@am__append_12 = src/maybe_threads.cc +@MINGW_FALSE@am__append_13 = libspinlock.la +@MINGW_FALSE@am__append_14 = src/maybe_threads.cc +@WITH_STACK_TRACE_TRUE@am__append_15 = $(SG_STACKTRACE_INCLUDES) + +### Making the library +@WITH_STACK_TRACE_TRUE@am__append_16 = libstacktrace.la \ +@WITH_STACK_TRACE_TRUE@ libfake_stacktrace_scope.la + +### Unittests +@WITH_STACK_TRACE_TRUE@am__append_17 = stacktrace_unittest + +### Documentation +@WITH_STACK_TRACE_TRUE@am__append_18 = + +# Let unittests find pprof if they need to run it +@WITH_STACK_TRACE_TRUE@am__append_19 = PPROF_PATH=$(top_srcdir)/src/pprof +@INSTALL_PPROF_TRUE@@WITH_STACK_TRACE_TRUE@am__append_20 = src/pprof +@INSTALL_PPROF_TRUE@@WITH_STACK_TRACE_TRUE@am__append_21 = docs/pprof_remote_servers.html + +### Documentation + +# On MSVC, we need our own versions of addr2line and nm to work with pprof. +# This is a slight abuse of WINDOWS_PROJECTS, but not much +@WITH_STACK_TRACE_TRUE@am__append_22 = \ +@WITH_STACK_TRACE_TRUE@ vsprojects/nm-pdb/nm-pdb.vcxproj \ +@WITH_STACK_TRACE_TRUE@ vsprojects/addr2line-pdb/addr2line-pdb.vcxproj \ +@WITH_STACK_TRACE_TRUE@ src/windows/nm-pdb.c \ +@WITH_STACK_TRACE_TRUE@ src/windows/addr2line-pdb.c + +# This tests it works to LD_PRELOAD libtcmalloc (tests maybe_threads.cc) +# In theory this should work under mingw, but mingw has trouble running +# shell scripts that end in .exe. And it doesn't seem to build shared +# libraries anyway (so can't be LD_PRELOADed) -- in fact, anybody who +# chooses not to build shared libraries won't be able to run this test. +# TODO(csilvers): figure out how to nix ".exe" or otherwise work under mingw +@ENABLE_STATIC_FALSE@@MINGW_FALSE@am__append_23 = maybe_threads_unittest.sh$(EXEEXT) +@ENABLE_STATIC_FALSE@@MINGW_FALSE@am__append_24 = $(maybe_threads_unittest_sh_SOURCES) +@MINGW_TRUE@am__append_25 = src/windows/port.h src/windows/port.cc +@MINGW_FALSE@am__append_26 = system_alloc_unittest + +# This doesn't work with mingw, which links foo.a even though it +# doesn't set ENABLE_STATIC. TODO(csilvers): set enable_static=true +# in configure.ac:36? +@MINGW_FALSE@am__append_27 = malloc_extension_c_test +# -ansi here is just to help ensure the code is bog-standard C. +@GCC_TRUE@@MINGW_FALSE@am__append_28 = -ansi +@MINGW_FALSE@@OSX_FALSE@am__append_29 = memalign_unittest + +### ------- tcmalloc_minimal_debug (thread-caching malloc with debugallocation) +@WITH_DEBUGALLOC_TRUE@am__append_30 = libtcmalloc_minimal_debug.la +@WITH_DEBUGALLOC_TRUE@am__append_31 = libtcmalloc_minimal_debug.la + +### Unittests +@WITH_DEBUGALLOC_TRUE@am__append_32 = tcmalloc_minimal_debug_unittest \ +@WITH_DEBUGALLOC_TRUE@ malloc_extension_debug_test +@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@am__append_33 = memalign_debug_unittest +@WITH_DEBUGALLOC_TRUE@am__append_34 = realloc_debug_unittest + +# debugallocation_test checks that we print a proper stacktrace when +# debug-allocs fail, so we can't run it if we don't have stacktrace info. +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am__append_35 = debugallocation_test.sh$(EXEEXT) +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am__append_36 = $(debugallocation_test_sh_SOURCES) + +# This is the sub-program used by debugallocation_test.sh +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am__append_37 = debugallocation_test +@MINGW_FALSE@am__append_38 = librun_benchmark.la +@MINGW_FALSE@am__append_39 = malloc_bench malloc_bench_shared \ +@MINGW_FALSE@ binary_trees binary_trees_shared + +@ENABLE_STATIC_TRUE@@MINGW_FALSE@am__append_40 = -static +@MINGW_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_41 = malloc_bench_shared_full +@ENABLE_STATIC_TRUE@@MINGW_FALSE@am__append_42 = -static +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_43 = $(SG_TCMALLOC_INCLUDES) + +# same as above with without -DNDEBUG +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_44 = \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ libtcmalloc_internal.la \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ libtcmalloc_internal_with_asserts.la \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ libtcmalloc_with_asserts.la +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_45 = libtcmalloc.la +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_46 = libtcmalloc.la + +### Unittests +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_47 = tcmalloc_unittest.sh$(EXEEXT) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ tcm_asserts_unittest +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_48 = $(tcmalloc_unittest_sh_SOURCES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(sampling_test_sh_SOURCES) + +# This is the sub-program used by sampling_test.sh +# The -g is so pprof can get symbol information. +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_49 = tcmalloc_unittest \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampling_test +@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_50 = tcmalloc_both_unittest +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_51 = \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ tcmalloc_large_unittest \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ tcmalloc_large_heap_fragmentation_unittest \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ raw_printer_test \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampler_test \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampling_test.sh$(EXEEXT) + +# sampler_test and sampling_test both require sampling to be turned +# on, which it's not by default. Use the "standard" value of 2^19. + +# These unittests often need to run binaries. They're in the current dir +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_52 = TCMALLOC_SAMPLE_PARAMETER=524288 \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ BINDIR=. \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ TMPDIR=/tmp/perftools +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_53 = vsprojects/sampler_test/sampler_test.vcxproj + +# Tests the compatibility include-headers in google/. Requires a function +# defined in the heap-profiler, which is why the test lives here. +@WITH_HEAP_PROFILER_TRUE@am__append_54 = \ +@WITH_HEAP_PROFILER_TRUE@ heap-profiler_unittest.sh$(EXEEXT) \ +@WITH_HEAP_PROFILER_TRUE@ simple_compat_test +@WITH_HEAP_PROFILER_TRUE@am__append_55 = $(heap_profiler_unittest_sh_SOURCES) + +# These are sub-programs used by heap-profiler_unittest.sh +@WITH_HEAP_PROFILER_TRUE@am__append_56 = heap-profiler_unittest +@WITH_HEAP_CHECKER_TRUE@am__append_57 = \ +@WITH_HEAP_CHECKER_TRUE@ heap-checker_unittest.sh$(EXEEXT) \ +@WITH_HEAP_CHECKER_TRUE@ heap-checker-death_unittest.sh$(EXEEXT) +@WITH_HEAP_CHECKER_TRUE@am__append_58 = \ +@WITH_HEAP_CHECKER_TRUE@ $(heap_checker_unittest_sh_SOURCES) \ +@WITH_HEAP_CHECKER_TRUE@ $(top_srcdir)/$(heap_checker_death_unittest_sh_SOURCES) + +# These are sub-programs used by heap-checker_unittest.sh +@WITH_HEAP_CHECKER_TRUE@am__append_59 = heap-checker_unittest + +### Documentation (above and beyond tcmalloc_minimal documentation) +@WITH_HEAP_PROFILER_TRUE@am__append_60 = docs/heapprofile.html docs/heap-example1.png +@WITH_HEAP_CHECKER_TRUE@am__append_61 = docs/heap_checker.html + +### ------- tcmalloc with debugallocation +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_62 = libtcmalloc_debug.la +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_63 = libtcmalloc_debug.la + +### Unittests +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_64 = tcmalloc_debug_unittest \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampler_debug_test \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampling_debug_test.sh$(EXEEXT) + +# This is the sub-program using by sampling_debug_test.sh +# The -g is so pprof can get symbol information. +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_65 = sampling_debug_test +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@am__append_66 = heap-profiler_debug_unittest.sh$(EXEEXT) + +# These are sub-programs used by heap-profiler_debug_unittest.sh +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@am__append_67 = heap-profiler_debug_unittest +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@am__append_68 = heap-checker_debug_unittest.sh$(EXEEXT) + +# These are sub-programs used by heap-checker_debug_unittest.sh +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@am__append_69 = heap-checker_debug_unittest +@WITH_CPU_PROFILER_TRUE@am__append_70 = $(SG_CPU_PROFILER_INCLUDES) + +### Making the library +@WITH_CPU_PROFILER_TRUE@am__append_71 = libprofiler.la + +### Unittests +@WITH_CPU_PROFILER_TRUE@am__append_72 = getpc_test \ +@WITH_CPU_PROFILER_TRUE@ profiledata_unittest \ +@WITH_CPU_PROFILER_TRUE@ profile_handler_unittest \ +@WITH_CPU_PROFILER_TRUE@ profiler_unittest.sh$(EXEEXT) +@WITH_CPU_PROFILER_TRUE@am__append_73 = $(profiler_unittest_sh_SOURCES) + +# These are sub-programs used by profiler_unittest.sh +@WITH_CPU_PROFILER_TRUE@am__append_74 = profiler1_unittest profiler2_unittest profiler3_unittest \ +@WITH_CPU_PROFILER_TRUE@ profiler4_unittest + +@WITH_CPU_PROFILER_FALSE@profiler2_unittest_DEPENDENCIES = + +### Documentation +@WITH_CPU_PROFILER_TRUE@am__append_75 = docs/cpuprofile.html \ +@WITH_CPU_PROFILER_TRUE@ docs/cpuprofile-fileformat.html \ +@WITH_CPU_PROFILER_TRUE@ docs/pprof-test-big.gif \ +@WITH_CPU_PROFILER_TRUE@ docs/pprof-test.gif \ +@WITH_CPU_PROFILER_TRUE@ docs/pprof-vsnprintf-big.gif \ +@WITH_CPU_PROFILER_TRUE@ docs/pprof-vsnprintf.gif + + +### ------- CPU profiler and heap checker, in one! + +# Ideally, folks who wanted to use both tcmalloc and libprofiler, +# could just link them both into their application. But while this +# works fine for .so files, it does not for .a files. The easiest way +# around this -- and I've tried a bunch of the hard ways -- is to just +# to create another set of libraries that has both functionality in it. +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_76 = libtcmalloc_and_profiler.la +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_77 = tcmalloc_and_profiler_unittest +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_78 = libtcmalloc_and_profiler.la +subdir = . +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/m4/ac_have_attribute.m4 \ + $(top_srcdir)/m4/acx_nanosleep.m4 \ + $(top_srcdir)/m4/acx_pthread.m4 \ + $(top_srcdir)/m4/ax_cxx_compile_stdcxx.m4 \ + $(top_srcdir)/m4/ax_generate_changelog.m4 \ + $(top_srcdir)/m4/install_prefix.m4 $(top_srcdir)/m4/libtool.m4 \ + $(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \ + $(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \ + $(top_srcdir)/m4/pc_from_ucontext.m4 \ + $(top_srcdir)/m4/program_invocation_name.m4 \ + $(top_srcdir)/configure.ac +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +DIST_COMMON = $(srcdir)/Makefile.am $(top_srcdir)/configure \ + $(am__configure_deps) $(am__dist_doc_DATA_DIST) \ + $(googleinclude_HEADERS) $(noinst_HEADERS) \ + $(am__perftoolsinclude_HEADERS_DIST) $(am__DIST_COMMON) +am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \ + configure.lineno config.status.lineno +mkinstalldirs = $(install_sh) -d +CONFIG_HEADER = $(top_builddir)/src/config.h +CONFIG_CLEAN_FILES = src/gperftools/tcmalloc.h \ + src/windows/gperftools/tcmalloc.h +CONFIG_CLEAN_VPATH_FILES = +am__installdirs = "$(DESTDIR)$(bindir)" "$(DESTDIR)$(libdir)" \ + "$(DESTDIR)$(bindir)" "$(DESTDIR)$(man1dir)" \ + "$(DESTDIR)$(docdir)" "$(DESTDIR)$(pkgconfigdir)" \ + "$(DESTDIR)$(googleincludedir)" \ + "$(DESTDIR)$(perftoolsincludedir)" \ + "$(DESTDIR)$(perftoolsincludedir)" +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am__EXEEXT_1 = debugallocation_test$(EXEEXT) +@MINGW_FALSE@am__EXEEXT_2 = malloc_bench$(EXEEXT) \ +@MINGW_FALSE@ malloc_bench_shared$(EXEEXT) \ +@MINGW_FALSE@ binary_trees$(EXEEXT) \ +@MINGW_FALSE@ binary_trees_shared$(EXEEXT) +@MINGW_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_3 = malloc_bench_shared_full$(EXEEXT) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_4 = tcmalloc_unittest$(EXEEXT) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampling_test$(EXEEXT) +@WITH_HEAP_PROFILER_TRUE@am__EXEEXT_5 = \ +@WITH_HEAP_PROFILER_TRUE@ heap-profiler_unittest$(EXEEXT) +@WITH_HEAP_CHECKER_TRUE@am__EXEEXT_6 = heap-checker_unittest$(EXEEXT) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_7 = sampling_debug_test$(EXEEXT) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@am__EXEEXT_8 = heap-profiler_debug_unittest$(EXEEXT) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@am__EXEEXT_9 = heap-checker_debug_unittest$(EXEEXT) +@WITH_CPU_PROFILER_TRUE@am__EXEEXT_10 = profiler1_unittest$(EXEEXT) \ +@WITH_CPU_PROFILER_TRUE@ profiler2_unittest$(EXEEXT) \ +@WITH_CPU_PROFILER_TRUE@ profiler3_unittest$(EXEEXT) \ +@WITH_CPU_PROFILER_TRUE@ profiler4_unittest$(EXEEXT) +@WITH_STACK_TRACE_TRUE@am__EXEEXT_11 = stacktrace_unittest$(EXEEXT) +@MINGW_FALSE@am__EXEEXT_12 = system_alloc_unittest$(EXEEXT) +@MINGW_FALSE@am__EXEEXT_13 = malloc_extension_c_test$(EXEEXT) +@MINGW_FALSE@@OSX_FALSE@am__EXEEXT_14 = memalign_unittest$(EXEEXT) +@WITH_DEBUGALLOC_TRUE@am__EXEEXT_15 = tcmalloc_minimal_debug_unittest$(EXEEXT) \ +@WITH_DEBUGALLOC_TRUE@ malloc_extension_debug_test$(EXEEXT) +@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@am__EXEEXT_16 = memalign_debug_unittest$(EXEEXT) +@WITH_DEBUGALLOC_TRUE@am__EXEEXT_17 = realloc_debug_unittest$(EXEEXT) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_18 = tcmalloc_unittest.sh$(EXEEXT) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ tcm_asserts_unittest$(EXEEXT) +@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_19 = tcmalloc_both_unittest$(EXEEXT) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_20 = tcmalloc_large_unittest$(EXEEXT) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ tcmalloc_large_heap_fragmentation_unittest$(EXEEXT) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ raw_printer_test$(EXEEXT) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampler_test$(EXEEXT) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampling_test.sh$(EXEEXT) +@WITH_HEAP_PROFILER_TRUE@am__EXEEXT_21 = \ +@WITH_HEAP_PROFILER_TRUE@ heap-profiler_unittest.sh$(EXEEXT) \ +@WITH_HEAP_PROFILER_TRUE@ simple_compat_test$(EXEEXT) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_22 = tcmalloc_debug_unittest$(EXEEXT) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampler_debug_test$(EXEEXT) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampling_debug_test.sh$(EXEEXT) +@WITH_CPU_PROFILER_TRUE@am__EXEEXT_23 = getpc_test$(EXEEXT) \ 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LIBSTDCXX_LA_LINKER_FLAG is used to fix a Solaris bug. +AM_LDFLAGS = -no-undefined $(LIBSTDCXX_LA_LINKER_FLAG) + +# For windows systems (at least, mingw), we need to tell all our +# tests to link in libtcmalloc using -u. This is because libtcmalloc +# accomplishes its tasks via patching, leaving no work for the linker +# to identify, so the linker will ignore libtcmalloc by default unless +# we explicitly create a dependency via -u. +TCMALLOC_FLAGS = $(am__append_9) +@HAVE_OBJCOPY_WEAKEN_FALSE@WEAKEN = : + +# If we have objcopy, make malloc/free/etc weak symbols. That way folks +# can override our malloc if they want to (they can still use tc_malloc). +# Note: the weird-looking symbols are the c++ memory functions: +# (in order) new, new(nothrow), new[], new[](nothrow), delete, delete[] +# In theory this will break if mangling changes, but that seems pretty +# unlikely at this point. 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It is populated by +# files that just forward to the canonical location in +# perftoolsincludedir. +googleincludedir = $(includedir)/google +googleinclude_HEADERS = \ + src/google/heap-checker.h \ + src/google/heap-profiler.h \ + src/google/malloc_extension.h \ + src/google/malloc_extension_c.h \ + src/google/malloc_hook.h \ + src/google/malloc_hook_c.h \ + src/google/profiler.h \ + src/google/stacktrace.h \ + src/google/tcmalloc.h + + +# This is for HTML and other documentation you want to install. +# Add your documentation files (in doc/) in addition to these +# top-level boilerplate files. Also add a TODO file if you have one. +# We'll add to this later, on a library-by-library basis + +### Documentation + +# I don't know how to say "distribute the .dot files but don't install them"; +# noinst doesn't seem to work with data. I separate them out anyway, in case +# one day we figure it out. Regardless, installing the dot files isn't the +# end of the world. +dist_doc_DATA = AUTHORS COPYING ChangeLog INSTALL NEWS README \ + README_windows.txt TODO ChangeLog.old docs/index.html \ + docs/designstyle.css $(am__append_18) $(am__append_21) \ + docs/tcmalloc.html docs/overview.gif docs/pageheap.gif \ + docs/spanmap.gif docs/threadheap.gif docs/t-test1.times.txt \ + docs/tcmalloc-opspercpusec.vs.threads.1024.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.128.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.131072.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.16384.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.2048.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.256.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.32768.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.4096.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.512.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.64.bytes.png \ + docs/tcmalloc-opspercpusec.vs.threads.65536.bytes.png \ 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+noinst_LTLIBRARIES = liblogging.la libsysinfo.la libmaybe_threads.la \ + $(am__append_10) $(am__append_13) $(am__append_16) \ + libtcmalloc_minimal_internal.la $(am__append_38) \ + $(am__append_44) + +# Add this whether or not we're under MinGW, to keep the tarball complete. +# Because we've commented out the test, above, we have to explicitly add +# the test files to the tarball or automake will leave them out. +WINDOWS_PROJECTS = gperftools.sln \ + vsprojects/preamble_patcher_test/preamble_patcher_test.vcxproj \ + src/windows/preamble_patcher_test.cc src/windows/shortproc.asm \ + src/windows/auto_testing_hook.h \ + vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcxproj \ + $(am__append_22) \ + vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcxproj \ + vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcxproj \ + vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcxproj \ + vsprojects/addressmap_unittest/addressmap_unittest.vcxproj \ + vsprojects/system-alloc_unittest/system-alloc_unittest.vcxproj \ + vsprojects/packed-cache_test/packed-cache_test.vcxproj \ + vsprojects/frag_unittest/frag_unittest.vcxproj \ + vsprojects/markidle_unittest/markidle_unittest.vcxproj \ + vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcxproj \ + vsprojects/malloc_hook_test/malloc_hook_test.vcxproj \ + vsprojects/malloc_extension_test/malloc_extension_test.vcxproj \ + vsprojects/page_heap_test/page_heap_test.vcxproj \ + vsprojects/pagemap_unittest/pagemap_unittest.vcxproj \ + vsprojects/realloc_unittest/realloc_unittest.vcxproj \ + vsprojects/stack_trace_table_test/stack_trace_table_test.vcxproj \ + vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcxproj \ + $(am__append_53) +# TESTS_ENVIRONMENT sets environment variables for when you run unittest. +# We always get "srcdir" set for free. +# We'll add to this later, on a library-by-library basis. +TESTS_ENVIRONMENT = $(am__append_19) $(am__append_52) +# All script tests should be added here +noinst_SCRIPTS = $(am__append_24) $(am__append_36) $(am__append_48) \ + $(am__append_55) $(am__append_58) $(am__append_73) + +# This is my own var, used for extra libraries I make that I need installed +EXTRA_INSTALL = + +### ------- library routines, in src/base + +# This is a 'convenience library' -- it's not actually installed or anything +LOGGING_INCLUDES = src/base/logging.h \ + src/base/commandlineflags.h \ + src/base/basictypes.h \ + src/base/dynamic_annotations.h + +liblogging_la_SOURCES = src/base/logging.cc \ + src/base/dynamic_annotations.c \ + $(LOGGING_INCLUDES) + +SYSINFO_INCLUDES = src/base/sysinfo.h \ + src/getenv_safe.h \ + src/base/logging.h \ + src/base/commandlineflags.h \ + src/base/arm_instruction_set_select.h \ + src/base/basictypes.h + +libsysinfo_la_SOURCES = src/base/sysinfo.cc \ + $(SYSINFO_INCLUDES) + +libsysinfo_la_LIBADD = $(NANOSLEEP_LIBS) $(am__append_11) +# .cc is conditionally added below +libmaybe_threads_la_SOURCES = src/maybe_threads.h $(am__append_12) \ + $(am__append_14) + +# For MinGW, we use also have to use libwindows Luckily, we need the +# windows.a library in exactly the same place we need spinlock.a +# (pretty much everywhere), so we can use the same variable name for +# each. We can also optimize the MinGW rule a bit by leaving out +# files we know aren't used on windows, such as +# atomicops-internals-x86.cc. libwindows also obsoletes the need for +# other files like system_alloc.cc. +@MINGW_TRUE@WINDOWS_INCLUDES = src/windows/port.h \ +@MINGW_TRUE@ src/windows/mingw.h \ +@MINGW_TRUE@ src/windows/mini_disassembler.h \ +@MINGW_TRUE@ src/windows/mini_disassembler_types.h \ +@MINGW_TRUE@ src/windows/preamble_patcher.h + +@MINGW_TRUE@libwindows_la_SOURCES = $(WINDOWS_INCLUDES) \ +@MINGW_TRUE@ src/windows/port.cc \ +@MINGW_TRUE@ src/windows/system-alloc.cc \ +@MINGW_TRUE@ src/windows/ia32_modrm_map.cc \ +@MINGW_TRUE@ src/windows/ia32_opcode_map.cc \ +@MINGW_TRUE@ src/windows/mini_disassembler.cc \ +@MINGW_TRUE@ src/windows/patch_functions.cc \ +@MINGW_TRUE@ src/windows/preamble_patcher.cc \ +@MINGW_TRUE@ src/windows/preamble_patcher_with_stub.cc + +# patch_functions.cc uses Psapi.lib. MSVC has a #pragma for that, but not us. +@MINGW_TRUE@libwindows_la_LIBADD = -lpsapi +# spinlock is the only code that uses atomicops. +@MINGW_FALSE@SPINLOCK_INCLUDES = src/base/spinlock.h \ +@MINGW_FALSE@ src/base/spinlock_internal.h \ +@MINGW_FALSE@ src/base/atomicops.h \ +@MINGW_FALSE@ src/base/atomicops-internals-macosx.h \ +@MINGW_FALSE@ src/base/atomicops-internals-linuxppc.h \ +@MINGW_FALSE@ src/base/atomicops-internals-windows.h \ +@MINGW_FALSE@ src/base/atomicops-internals-x86.h + +@MINGW_TRUE@SPINLOCK_INCLUDES = src/base/spinlock.h \ +@MINGW_TRUE@ src/base/spinlock_internal.h \ +@MINGW_TRUE@ src/base/spinlock_win32-inl.h \ +@MINGW_TRUE@ src/base/spinlock_linux-inl.h \ +@MINGW_TRUE@ src/base/spinlock_posix-inl.h \ +@MINGW_TRUE@ src/base/atomicops-internals-macosx.h \ +@MINGW_TRUE@ src/base/atomicops-internals-linuxppc.h \ +@MINGW_TRUE@ src/base/atomicops-internals-arm-generic.h \ +@MINGW_TRUE@ src/base/atomicops-internals-arm-v6plus.h \ +@MINGW_TRUE@ src/base/atomicops-internals-mips.h \ +@MINGW_TRUE@ src/base/atomicops-internals-windows.h \ +@MINGW_TRUE@ src/base/atomicops-internals-gcc.h \ +@MINGW_TRUE@ src/base/atomicops-internals-x86.h + +@MINGW_FALSE@libspinlock_la_SOURCES = src/base/spinlock.cc \ +@MINGW_FALSE@ src/base/spinlock_internal.cc \ +@MINGW_FALSE@ src/base/atomicops-internals-x86.cc \ +@MINGW_FALSE@ $(SPINLOCK_INCLUDES) + +@MINGW_TRUE@libspinlock_la_SOURCES = src/base/spinlock.cc \ +@MINGW_TRUE@ src/base/spinlock_internal.cc \ +@MINGW_TRUE@ src/base/atomicops-internals-x86.cc \ +@MINGW_TRUE@ $(SPINLOCK_INCLUDES) + +# spinlock also needs NumCPUs, from libsysinfo, which in turn needs liblogging +@MINGW_FALSE@LIBSPINLOCK = libspinlock.la libsysinfo.la liblogging.la +@MINGW_TRUE@LIBSPINLOCK = libwindows.la libspinlock.la libsysinfo.la liblogging.la +@MINGW_FALSE@TCMALLOC_CC = src/tcmalloc.cc + +# There's a windows-specific unittest we can run. Right now it's +# win64-specific, and relies on masm, so we comment it out. + +# patch_functions.cc #includes tcmalloc.cc, so no need to link it in. +@MINGW_TRUE@TCMALLOC_CC = +@MINGW_FALSE@SYSTEM_ALLOC_CC = src/system-alloc.cc +@MINGW_TRUE@SYSTEM_ALLOC_CC = +@MINGW_FALSE@libspinlock_la_LIBADD = $(NANOSLEEP_LIBS) +LOW_LEVEL_ALLOC_UNITTEST_INCLUDES = src/base/low_level_alloc.h \ + src/base/basictypes.h \ + src/gperftools/malloc_hook.h \ + src/gperftools/malloc_hook_c.h \ + src/malloc_hook-inl.h \ + src/malloc_hook_mmap_linux.h \ + src/malloc_hook_mmap_freebsd.h \ + $(SPINLOCK_INCLUDES) \ + $(LOGGING_INCLUDES) + +low_level_alloc_unittest_SOURCES = src/base/low_level_alloc.cc \ + src/malloc_hook.cc \ + src/tests/low_level_alloc_unittest.cc \ + $(LOW_LEVEL_ALLOC_UNITTEST_INCLUDES) + +# By default, MallocHook takes stack traces for use by the heap-checker. +# We don't need that functionality here, so we turn it off to reduce deps. +low_level_alloc_unittest_CXXFLAGS = -DNO_TCMALLOC_SAMPLES +low_level_alloc_unittest_LDADD = $(LIBSPINLOCK) libmaybe_threads.la +ATOMICOPS_UNITTEST_INCLUDES = src/base/atomicops.h \ + src/base/atomicops-internals-macosx.h \ + src/base/atomicops-internals-windows.h \ + src/base/atomicops-internals-x86.h \ + $(LOGGING_INCLUDES) + +atomicops_unittest_SOURCES = src/tests/atomicops_unittest.cc \ + $(ATOMICOPS_UNITTEST_INCLUDES) + +atomicops_unittest_LDADD = $(LIBSPINLOCK) + +### ------- stack trace + +### The header files we use. We divide into categories based on directory +@WITH_STACK_TRACE_TRUE@S_STACKTRACE_INCLUDES = src/stacktrace_impl_setup-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_generic-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_generic_fp-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_libgcc-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_libunwind-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_arm-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_powerpc-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_powerpc-darwin-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_powerpc-linux-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_x86-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_win32-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/stacktrace_instrument-inl.h \ +@WITH_STACK_TRACE_TRUE@ src/base/elf_mem_image.h \ +@WITH_STACK_TRACE_TRUE@ src/base/vdso_support.h + +@WITH_STACK_TRACE_TRUE@SG_STACKTRACE_INCLUDES = src/gperftools/stacktrace.h +@WITH_STACK_TRACE_TRUE@STACKTRACE_INCLUDES = $(S_STACKTRACE_INCLUDES) $(SG_STACKTRACE_INCLUDES) +@WITH_STACK_TRACE_TRUE@libstacktrace_la_SOURCES = src/stacktrace.cc \ +@WITH_STACK_TRACE_TRUE@ src/base/elf_mem_image.cc \ +@WITH_STACK_TRACE_TRUE@ src/base/vdso_support.cc \ +@WITH_STACK_TRACE_TRUE@ $(STACKTRACE_INCLUDES) + +@WITH_STACK_TRACE_TRUE@libstacktrace_la_LIBADD = $(UNWIND_LIBS) $(LIBSPINLOCK) +@WITH_STACK_TRACE_TRUE@STACKTRACE_SYMBOLS = '(GetStackTrace|GetStackFrames|GetStackTraceWithContext|GetStackFramesWithContext)' +@WITH_STACK_TRACE_TRUE@libstacktrace_la_LDFLAGS = -export-symbols-regex $(STACKTRACE_SYMBOLS) $(AM_LDFLAGS) +@WITH_STACK_TRACE_TRUE@libfake_stacktrace_scope_la_SOURCES = src/fake_stacktrace_scope.cc +@WITH_STACK_TRACE_TRUE@STACKTRACE_UNITTEST_INCLUDES = src/config_for_unittests.h \ +@WITH_STACK_TRACE_TRUE@ src/base/commandlineflags.h \ +@WITH_STACK_TRACE_TRUE@ $(STACKTRACE_INCLUDES) \ +@WITH_STACK_TRACE_TRUE@ $(LOGGING_INCLUDES) + +@WITH_STACK_TRACE_TRUE@stacktrace_unittest_SOURCES = src/tests/stacktrace_unittest.cc \ +@WITH_STACK_TRACE_TRUE@ $(STACKTRACE_UNITTEST_INCLUDES) + +@WITH_STACK_TRACE_TRUE@stacktrace_unittest_LDADD = libstacktrace.la liblogging.la libfake_stacktrace_scope.la + +### ------- pprof + +# If we are not compiling with stacktrace support, pprof is worthless +@WITH_STACK_TRACE_TRUE@bin_SCRIPTS = pprof-symbolize $(am__append_20) + +### Unittests +@WITH_STACK_TRACE_TRUE@check_SCRIPTS = pprof_unittest +@INSTALL_PPROF_TRUE@@WITH_STACK_TRACE_TRUE@dist_man_MANS = docs/pprof.1 + +### ------- tcmalloc_minimal (thread-caching malloc) + +### The header files we use. We divide into categories based on directory +S_TCMALLOC_MINIMAL_INCLUDES = src/common.h \ + src/internal_logging.h \ + src/system-alloc.h \ + src/packed-cache-inl.h \ + $(SPINLOCK_INCLUDES) \ + src/tcmalloc_guard.h \ + src/base/commandlineflags.h \ + src/base/basictypes.h \ + src/pagemap.h \ + src/sampler.h \ + src/central_freelist.h \ + src/linked_list.h \ + src/libc_override.h \ + src/libc_override_gcc_and_weak.h \ + src/libc_override_glibc.h \ + src/libc_override_osx.h \ + src/libc_override_redefine.h \ + src/page_heap.h \ + src/page_heap_allocator.h \ + src/span.h \ + src/static_vars.h \ + src/symbolize.h \ + src/thread_cache.h \ + src/stack_trace_table.h \ + src/base/thread_annotations.h \ + src/malloc_hook-inl.h \ + src/malloc_hook_mmap_linux.h \ + src/malloc_hook_mmap_freebsd.h + +SG_TCMALLOC_MINIMAL_INCLUDES = src/gperftools/malloc_hook.h \ + src/gperftools/malloc_hook_c.h \ + src/gperftools/malloc_extension.h \ + src/gperftools/malloc_extension_c.h \ + src/gperftools/nallocx.h + +TCMALLOC_MINIMAL_INCLUDES = $(S_TCMALLOC_MINIMAL_INCLUDES) $(SG_TCMALLOC_MINIMAL_INCLUDES) $(SG_STACKTRACE_INCLUDES) +libtcmalloc_minimal_internal_la_SOURCES = src/common.cc \ + src/internal_logging.cc \ + $(SYSTEM_ALLOC_CC) \ + src/memfs_malloc.cc \ + src/central_freelist.cc \ + src/page_heap.cc \ + src/sampler.cc \ + src/span.cc \ + src/stack_trace_table.cc \ + src/static_vars.cc \ + src/symbolize.cc \ + src/thread_cache.cc \ + src/malloc_hook.cc \ + src/malloc_extension.cc \ + $(TCMALLOC_MINIMAL_INCLUDES) + +# We #define NO_TCMALLOC_SAMPLES, since sampling is turned off for _minimal. +libtcmalloc_minimal_internal_la_CXXFLAGS = -DNO_TCMALLOC_SAMPLES \ + -DNO_HEAP_CHECK \ + -DNDEBUG \ + $(AM_CXXFLAGS) + +libtcmalloc_minimal_internal_la_LDFLAGS = $(AM_LDFLAGS) +libtcmalloc_minimal_internal_la_LIBADD = $(LIBSPINLOCK) libmaybe_threads.la +libtcmalloc_minimal_la_SOURCES = $(TCMALLOC_CC) $(TCMALLOC_MINIMAL_INCLUDES) +libtcmalloc_minimal_la_CXXFLAGS = -DNO_TCMALLOC_SAMPLES \ + $(PTHREAD_CFLAGS) -DNDEBUG $(AM_CXXFLAGS) + +# -version-info gets passed to libtool +libtcmalloc_minimal_la_LDFLAGS = -version-info @TCMALLOC_SO_VERSION@ $(AM_LDFLAGS) +libtcmalloc_minimal_la_LIBADD = libtcmalloc_minimal_internal.la +@MINGW_FALSE@LIBTCMALLOC_MINIMAL = libtcmalloc_minimal.la + +# For windows, we're playing around with trying to do some stacktrace +# support even with libtcmalloc_minimal. For everyone else, though, +# we turn off all stack-trace activity for libtcmalloc_minimal. +# TODO(csilvers): when we're done experimenting, do something principled here +@MINGW_TRUE@LIBTCMALLOC_MINIMAL = libtcmalloc_minimal.la libstacktrace.la +tcmalloc_minimal_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ + src/tests/testutil.h src/tests/testutil.cc \ + $(TCMALLOC_UNITTEST_INCLUDES) + +tcmalloc_minimal_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_minimal_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +# We also put pthreads after tcmalloc, because some pthread +# implementations define their own malloc, and we need to go on the +# first linkline to make sure our malloc 'wins'. +tcmalloc_minimal_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) \ + liblogging.la $(PTHREAD_LIBS) + +tcm_min_asserts_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ + src/tests/testutil.h src/tests/testutil.cc \ + $(libtcmalloc_minimal_internal_la_SOURCES) \ + $(libtcmalloc_minimal_la_SOURCES) \ + $(TCMALLOC_UNITTEST_INCLUDES) + +tcm_min_asserts_unittest_CXXFLAGS = -DNO_TCMALLOC_SAMPLES -DNO_HEAP_CHECK \ + $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) + +tcm_min_asserts_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcm_min_asserts_unittest_LDADD = $(LIBSPINLOCK) libmaybe_threads.la \ + liblogging.la $(PTHREAD_LIBS) + +tcmalloc_minimal_large_unittest_SOURCES = src/tests/tcmalloc_large_unittest.cc +tcmalloc_minimal_large_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_minimal_large_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcmalloc_minimal_large_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +tcmalloc_minimal_large_heap_fragmentation_unittest_SOURCES = src/tests/large_heap_fragmentation_unittest.cc +tcmalloc_minimal_large_heap_fragmentation_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +tcmalloc_minimal_large_heap_fragmentation_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +tcmalloc_minimal_large_heap_fragmentation_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +@ENABLE_STATIC_FALSE@@MINGW_FALSE@maybe_threads_unittest_sh_SOURCES = src/tests/maybe_threads_unittest.sh +ADDRESSMAP_UNITTEST_INCLUDES = src/addressmap-inl.h \ + src/base/commandlineflags.h \ + $(LOGGING_INCLUDES) + +addressmap_unittest_SOURCES = src/tests/addressmap_unittest.cc \ + $(ADDRESSMAP_UNITTEST_INCLUDES) $(am__append_25) +addressmap_unittest_CXXFLAGS = -g $(AM_CXXFLAGS) +addressmap_unittest_LDADD = liblogging.la +@MINGW_FALSE@system_alloc_unittest_SOURCES = src/config_for_unittests.h \ +@MINGW_FALSE@ src/tests/system-alloc_unittest.cc + +@MINGW_FALSE@system_alloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@MINGW_FALSE@system_alloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@MINGW_FALSE@system_alloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +packed_cache_test_SOURCES = src/tests/packed-cache_test.cc +packed_cache_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +packed_cache_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +packed_cache_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +frag_unittest_SOURCES = src/tests/frag_unittest.cc src/config_for_unittests.h +frag_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +frag_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +frag_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +markidle_unittest_SOURCES = src/tests/markidle_unittest.cc \ + src/config_for_unittests.h \ + src/tests/testutil.h src/tests/testutil.cc + +markidle_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +markidle_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +markidle_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +current_allocated_bytes_test_SOURCES = src/tests/current_allocated_bytes_test.cc \ + src/config_for_unittests.h + +current_allocated_bytes_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +current_allocated_bytes_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +current_allocated_bytes_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +malloc_hook_test_SOURCES = src/tests/malloc_hook_test.cc \ + src/config_for_unittests.h \ + src/base/logging.h \ + src/gperftools/malloc_hook.h \ + src/tests/testutil.h src/tests/testutil.cc + +malloc_hook_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +malloc_hook_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +malloc_hook_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +malloc_extension_test_SOURCES = src/tests/malloc_extension_test.cc \ + src/config_for_unittests.h \ + src/base/logging.h \ + src/gperftools/malloc_extension.h \ + src/gperftools/malloc_extension_c.h + +malloc_extension_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +malloc_extension_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +malloc_extension_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +@MINGW_FALSE@malloc_extension_c_test_SOURCES = src/tests/malloc_extension_c_test.c \ +@MINGW_FALSE@ src/gperftools/malloc_extension.h \ +@MINGW_FALSE@ src/gperftools/malloc_extension_c.h + +@MINGW_FALSE@malloc_extension_c_test_CFLAGS = $(PTHREAD_CFLAGS) \ +@MINGW_FALSE@ $(AM_CFLAGS) $(am__append_28) +@MINGW_FALSE@malloc_extension_c_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@MINGW_FALSE@malloc_extension_c_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) -lstdc++ -lm +@MINGW_FALSE@@OSX_FALSE@memalign_unittest_SOURCES = src/tests/memalign_unittest.cc \ +@MINGW_FALSE@@OSX_FALSE@ src/tcmalloc.h \ +@MINGW_FALSE@@OSX_FALSE@ src/config_for_unittests.h \ +@MINGW_FALSE@@OSX_FALSE@ src/tests/testutil.h src/tests/testutil.cc + +@MINGW_FALSE@@OSX_FALSE@memalign_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@MINGW_FALSE@@OSX_FALSE@memalign_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@MINGW_FALSE@@OSX_FALSE@memalign_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +page_heap_test_SOURCES = src/tests/page_heap_test.cc \ + src/config_for_unittests.h \ + src/base/logging.h \ + src/common.h \ + src/page_heap.h + +page_heap_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +page_heap_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +page_heap_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +pagemap_unittest_SOURCES = src/tests/pagemap_unittest.cc \ + src/config_for_unittests.h \ + src/base/logging.h \ + src/pagemap.h + +pagemap_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +pagemap_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +pagemap_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +realloc_unittest_SOURCES = src/tests/realloc_unittest.cc \ + src/config_for_unittests.h \ + src/base/logging.h + +realloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +realloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +realloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +stack_trace_table_test_SOURCES = src/tests/stack_trace_table_test.cc \ + src/config_for_unittests.h + +stack_trace_table_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +stack_trace_table_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +stack_trace_table_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +thread_dealloc_unittest_SOURCES = src/tests/thread_dealloc_unittest.cc \ + src/config_for_unittests.h \ + src/tests/testutil.h src/tests/testutil.cc + +thread_dealloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +thread_dealloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +thread_dealloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) +@WITH_DEBUGALLOC_TRUE@libtcmalloc_minimal_debug_la_SOURCES = src/debugallocation.cc \ +@WITH_DEBUGALLOC_TRUE@ $(TCMALLOC_MINIMAL_INCLUDES) + +@WITH_DEBUGALLOC_TRUE@libtcmalloc_minimal_debug_la_CXXFLAGS = $(libtcmalloc_minimal_la_CXXFLAGS) \ +@WITH_DEBUGALLOC_TRUE@ -DTCMALLOC_FOR_DEBUGALLOCATION + +# version_info gets passed to libtool +@WITH_DEBUGALLOC_TRUE@libtcmalloc_minimal_debug_la_LDFLAGS = $(libtcmalloc_minimal_la_LDFLAGS) \ +@WITH_DEBUGALLOC_TRUE@ -version-info @TCMALLOC_SO_VERSION@ + +@WITH_DEBUGALLOC_TRUE@libtcmalloc_minimal_debug_la_LIBADD = $(libtcmalloc_minimal_la_LIBADD) +@WITH_DEBUGALLOC_TRUE@tcmalloc_minimal_debug_unittest_SOURCES = $(tcmalloc_minimal_unittest_SOURCES) +@WITH_DEBUGALLOC_TRUE@tcmalloc_minimal_debug_unittest_CXXFLAGS = $(tcmalloc_minimal_unittest_CXXFLAGS) \ +@WITH_DEBUGALLOC_TRUE@ -DDEBUGALLOCATION + +@WITH_DEBUGALLOC_TRUE@tcmalloc_minimal_debug_unittest_LDFLAGS = $(tcmalloc_minimal_unittest_LDFLAGS) +@WITH_DEBUGALLOC_TRUE@tcmalloc_minimal_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS) +@WITH_DEBUGALLOC_TRUE@malloc_extension_debug_test_SOURCES = $(malloc_extension_test_SOURCES) +@WITH_DEBUGALLOC_TRUE@malloc_extension_debug_test_CXXFLAGS = $(malloc_extension_test_CXXFLAGS) +@WITH_DEBUGALLOC_TRUE@malloc_extension_debug_test_LDFLAGS = $(malloc_extension_test_LDFLAGS) +@WITH_DEBUGALLOC_TRUE@malloc_extension_debug_test_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS) +@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@memalign_debug_unittest_SOURCES = $(memalign_unittest_SOURCES) +@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@memalign_debug_unittest_CXXFLAGS = $(memalign_unittest_CXXFLAGS) +@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@memalign_debug_unittest_LDFLAGS = $(memalign_unittest_LDFLAGS) +@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@memalign_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS) +@WITH_DEBUGALLOC_TRUE@realloc_debug_unittest_SOURCES = $(realloc_unittest_SOURCES) +@WITH_DEBUGALLOC_TRUE@realloc_debug_unittest_CXXFLAGS = $(realloc_unittest_CXXFLAGS) +@WITH_DEBUGALLOC_TRUE@realloc_debug_unittest_LDFLAGS = $(realloc_unittest_LDFLAGS) +@WITH_DEBUGALLOC_TRUE@realloc_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS) +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_sh_SOURCES = src/tests/debugallocation_test.sh +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_SOURCES = src/tests/debugallocation_test.cc +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) +@MINGW_FALSE@librun_benchmark_la_SOURCES = \ +@MINGW_FALSE@ benchmark/run_benchmark.c benchmark/run_benchmark.h + +@MINGW_FALSE@malloc_bench_SOURCES = benchmark/malloc_bench.cc +@MINGW_FALSE@malloc_bench_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@MINGW_FALSE@malloc_bench_LDFLAGS = $(PTHREAD_CFLAGS) \ +@MINGW_FALSE@ $(TCMALLOC_FLAGS) $(am__append_40) +@MINGW_FALSE@malloc_bench_LDADD = librun_benchmark.la libtcmalloc_minimal.la $(PTHREAD_LIBS) +@MINGW_FALSE@malloc_bench_shared_SOURCES = benchmark/malloc_bench.cc +@MINGW_FALSE@malloc_bench_shared_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@MINGW_FALSE@malloc_bench_shared_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@MINGW_FALSE@malloc_bench_shared_LDADD = librun_benchmark.la libtcmalloc_minimal.la $(PTHREAD_LIBS) +@MINGW_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@malloc_bench_shared_full_SOURCES = benchmark/malloc_bench.cc +@MINGW_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@malloc_bench_shared_full_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@MINGW_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@malloc_bench_shared_full_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@MINGW_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@malloc_bench_shared_full_LDADD = librun_benchmark.la libtcmalloc.la $(PTHREAD_LIBS) +@MINGW_FALSE@binary_trees_SOURCES = benchmark/binary_trees.cc +@MINGW_FALSE@binary_trees_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@MINGW_FALSE@binary_trees_LDFLAGS = $(PTHREAD_CFLAGS) \ +@MINGW_FALSE@ $(TCMALLOC_FLAGS) $(am__append_42) +@MINGW_FALSE@binary_trees_LDADD = libtcmalloc_minimal.la $(PTHREAD_LIBS) +@MINGW_FALSE@binary_trees_shared_SOURCES = benchmark/binary_trees.cc +@MINGW_FALSE@binary_trees_shared_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@MINGW_FALSE@binary_trees_shared_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@MINGW_FALSE@binary_trees_shared_LDADD = libtcmalloc_minimal.la $(PTHREAD_LIBS) + +### ------- tcmalloc (thread-caching malloc + heap profiler + heap checker) + +### The header files we use. We divide into categories based on directory +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@S_TCMALLOC_INCLUDES = $(S_TCMALLOC_MINIMAL_INCLUDES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(LOGGING_INCLUDES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/addressmap-inl.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/raw_printer.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/elfcore.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/googleinit.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/linux_syscall_support.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/linuxthreads.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/stl_allocator.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/sysinfo.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/thread_lister.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/heap-profile-table.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/heap-profile-stats.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/maybe_emergency_malloc.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/emergency_malloc.h + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@SG_TCMALLOC_INCLUDES = src/gperftools/heap-profiler.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/gperftools/heap-checker.h + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@TCMALLOC_INCLUDES = $(S_TCMALLOC_INCLUDES) $(SG_TCMALLOC_MINIMAL_INCLUDES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(SG_TCMALLOC_INCLUDES) $(SG_STACKTRACE_INCLUDES) + +@BUILD_EMERGENCY_MALLOC_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@EMERGENCY_MALLOC_CC = src/fake_stacktrace_scope.cc +@BUILD_EMERGENCY_MALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@EMERGENCY_MALLOC_CC = src/emergency_malloc.cc src/emergency_malloc_for_stacktrace.cc +@BUILD_EMERGENCY_MALLOC_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@EMERGENCY_MALLOC_DEFINE = +@BUILD_EMERGENCY_MALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@EMERGENCY_MALLOC_DEFINE = -DENABLE_EMERGENCY_MALLOC +@WITH_HEAP_CHECKER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@HEAP_CHECKER_SOURCES = + +### Making the library + +# heap-checker-bcad is last, in hopes its global ctor will run first. +# (Note this is added to libtcmalloc.la, not libtcmalloc_internal.la, +# but that's ok; the internal/external distinction is only useful for +# cygwin, and cygwin doesn't use HEAP_CHECKER anyway.) +@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@HEAP_CHECKER_SOURCES = src/base/thread_lister.c \ +@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/linuxthreads.cc \ +@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/heap-checker.cc \ +@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/heap-checker-bcad.cc + +@WITH_HEAP_CHECKER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@MAYBE_NO_HEAP_CHECK = -DNO_HEAP_CHECK +@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@MAYBE_NO_HEAP_CHECK = +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_la_SOURCES = $(libtcmalloc_minimal_internal_la_SOURCES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(TCMALLOC_INCLUDES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/low_level_alloc.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/heap-profile-table.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/heap-profiler.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/raw_printer.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(EMERGENCY_MALLOC_CC) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/memory_region_map.cc + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_la_CXXFLAGS = $(PTHREAD_CFLAGS) -DNDEBUG \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(AM_CXXFLAGS) $(EMERGENCY_MALLOC_DEFINE) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(MAYBE_NO_HEAP_CHECK) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_la_LDFLAGS = $(PTHREAD_CFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_la_LIBADD = libstacktrace.la $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_la_SOURCES = $(TCMALLOC_CC) $(TCMALLOC_INCLUDES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(HEAP_CHECKER_SOURCES) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_la_CXXFLAGS = $(PTHREAD_CFLAGS) -DNDEBUG $(AM_CXXFLAGS) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(MAYBE_NO_HEAP_CHECK) $(EMERGENCY_MALLOC_DEFINE) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_la_LDFLAGS = $(PTHREAD_CFLAGS) -version-info @TCMALLOC_SO_VERSION@ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_la_LIBADD = libtcmalloc_internal.la libmaybe_threads.la $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_with_asserts_la_SOURCES = $(libtcmalloc_internal_la_SOURCES) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_with_asserts_la_CXXFLAGS = $(PTHREAD_CFLAGS) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(AM_CXXFLAGS) $(EMERGENCY_MALLOC_DEFINE) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(MAYBE_NO_HEAP_CHECK) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_with_asserts_la_LDFLAGS = $(PTHREAD_CFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_with_asserts_la_LIBADD = libstacktrace.la $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_with_asserts_la_SOURCES = $(libtcmalloc_la_SOURCES) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_with_asserts_la_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(MAYBE_NO_HEAP_CHECK) $(EMERGENCY_MALLOC_DEFINE) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_with_asserts_la_LDFLAGS = $(PTHREAD_CFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_with_asserts_la_LIBADD = libtcmalloc_internal_with_asserts.la libmaybe_threads.la $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@LIBTCMALLOC = libtcmalloc.la +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_sh_SOURCES = src/tests/tcmalloc_unittest.sh +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_INCLUDES = src/config_for_unittests.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/gperftools/malloc_extension.h + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/tcmalloc.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/tests/testutil.h src/tests/testutil.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(TCMALLOC_UNITTEST_INCLUDES) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +# We also put pthreads after tcmalloc, because some pthread +# implementations define their own malloc, and we need to go on the +# first linkline to make sure our malloc 'wins'. +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_LDADD = $(LIBTCMALLOC) liblogging.la $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcm_asserts_unittest_INCLUDES = src/config_for_unittests.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/gperftools/malloc_extension.h + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcm_asserts_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/tcmalloc.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/tests/testutil.h src/tests/testutil.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(TCMALLOC_UNITTEST_INCLUDES) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcm_asserts_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcm_asserts_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcm_asserts_unittest_LDADD = libtcmalloc_with_asserts.la liblogging.la $(PTHREAD_LIBS) + +# This makes sure it's safe to link in both tcmalloc and +# tcmalloc_minimal. (One would never do this on purpose, but perhaps +# by accident...) When we can compile libprofiler, we also link it in +# to make sure that works too. NOTE: On OS X, it's *not* safe to +# link both in (we end up with two copies of every global var, and +# the code tends to pick one arbitrarily), so don't run the test there. +# (We define these outside the 'if' because they're reused below.) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_srcs = src/tests/tcmalloc_unittest.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/tests/testutil.h src/tests/testutil.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(TCMALLOC_UNITTEST_INCLUDES) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_cflags = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_lflags = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_CPU_PROFILER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_ladd = $(LIBTCMALLOC) $(LIBTCMALLOC_MINIMAL) \ +@WITH_CPU_PROFILER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ liblogging.la $(PTHREAD_LIBS) + +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +# We also put pthreads after tcmalloc, because some pthread +# implementations define their own malloc, and we need to go on the +# first linkline to make sure our malloc 'wins'. +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_ladd = $(LIBTCMALLOC) $(LIBTCMALLOC_MINIMAL) \ +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ libprofiler.la liblogging.la $(PTHREAD_LIBS) + +@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_SOURCES = $(tcmalloc_both_unittest_srcs) +@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_CXXFLAGS = $(tcmalloc_both_unittest_cflags) +@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_LDFLAGS = $(tcmalloc_both_unittest_lflags) +@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_LDADD = $(tcmalloc_both_unittest_ladd) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_unittest_SOURCES = src/tests/tcmalloc_large_unittest.cc +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_heap_fragmentation_unittest_SOURCES = src/tests/large_heap_fragmentation_unittest.cc +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_heap_fragmentation_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_heap_fragmentation_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_heap_fragmentation_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@raw_printer_test_SOURCES = src/tests/raw_printer_test.cc +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@raw_printer_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@raw_printer_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@raw_printer_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_test_SOURCES = src/tests/sampler_test.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/config_for_unittests.h + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) -lm +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_sh_SOURCES = src/tests/sampling_test.sh +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@SAMPLING_TEST_INCLUDES = src/config_for_unittests.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/base/logging.h \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ src/gperftools/malloc_extension.h + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_SOURCES = src/tests/sampling_test.cc \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(SAMPLING_TEST_INCLUDES) + +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_sh_SOURCES = src/tests/heap-profiler_unittest.sh +@WITH_HEAP_PROFILER_TRUE@HEAP_PROFILER_UNITTEST_INCLUDES = src/config_for_unittests.h \ +@WITH_HEAP_PROFILER_TRUE@ src/gperftools/heap-profiler.h + +@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_SOURCES = src/tests/heap-profiler_unittest.cc \ +@WITH_HEAP_PROFILER_TRUE@ $(HEAP_PROFILER_UNITTEST_INCLUDES) + +@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) +@WITH_HEAP_PROFILER_TRUE@simple_compat_test_SOURCES = src/tests/simple_compat_test.cc \ +@WITH_HEAP_PROFILER_TRUE@ $(googleinclude_HEADERS) + +@WITH_HEAP_PROFILER_TRUE@simple_compat_test_LDFLAGS = $(TCMALLOC_FLAGS) +@WITH_HEAP_PROFILER_TRUE@simple_compat_test_LDADD = $(LIBTCMALLOC) +@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_sh_SOURCES = src/tests/heap-checker_unittest.sh +@WITH_HEAP_CHECKER_TRUE@heap_checker_death_unittest_sh_SOURCES = src/tests/heap-checker-death_unittest.sh +@WITH_HEAP_CHECKER_TRUE@HEAP_CHECKER_UNITTEST_INCLUDES = src/config_for_unittests.h \ +@WITH_HEAP_CHECKER_TRUE@ src/memory_region_map.h \ +@WITH_HEAP_CHECKER_TRUE@ src/base/commandlineflags.h \ +@WITH_HEAP_CHECKER_TRUE@ src/base/googleinit.h \ +@WITH_HEAP_CHECKER_TRUE@ src/gperftools/heap-checker.h \ +@WITH_HEAP_CHECKER_TRUE@ $(LOGGING_INCLUDES) + +@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_SOURCES = src/tests/heap-checker_unittest.cc \ +@WITH_HEAP_CHECKER_TRUE@ $(HEAP_CHECKER_UNITTEST_INCLUDES) + +@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS) +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +# We also put pthreads after tcmalloc, because some pthread +# implementations define their own malloc, and we need to go on the +# first linkline to make sure our malloc 'wins'. +@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_LDADD = $(LIBTCMALLOC) liblogging.la $(PTHREAD_LIBS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_debug_la_SOURCES = src/debugallocation.cc $(HEAP_CHECKER_SOURCES) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ $(TCMALLOC_INCLUDES) + +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_debug_la_CXXFLAGS = $(libtcmalloc_la_CXXFLAGS) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ -DTCMALLOC_FOR_DEBUGALLOCATION + +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_debug_la_LDFLAGS = $(libtcmalloc_la_LDFLAGS) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ -version-info @TCMALLOC_SO_VERSION@ + +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_debug_la_LIBADD = $(libtcmalloc_la_LIBADD) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_debug_unittest_SOURCES = $(tcmalloc_unittest_SOURCES) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_debug_unittest_CXXFLAGS = $(tcmalloc_unittest_CXXFLAGS) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ -DDEBUGALLOCATION + +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_debug_unittest_LDFLAGS = $(tcmalloc_unittest_LDFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_debug_unittest_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_debug_test_SOURCES = $(sampler_test_SOURCES) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_debug_test_CXXFLAGS = $(samples_test_CXXFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_debug_test_LDFLAGS = $(sampler_test_LDFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_debug_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) -lm +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_sh_SOURCES = src/tests/sampling_test.sh +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_SOURCES = $(sampling_test_SOURCES) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_CXXFLAGS = $(sampling_test_CXXFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_LDFLAGS = $(sampling_test_LDFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_sh_SOURCES = src/tests/heap-profiler_unittest.sh +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_SOURCES = $(heap_profiler_unittest_SOURCES) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_CXXFLAGS = $(heap_profiler_unittest_CXXFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_LDFLAGS = $(heap_profiler_unittest_LDFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_sh_SOURCES = src/tests/heap-checker_unittest.sh +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_SOURCES = $(heap_checker_unittest_SOURCES) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_CXXFLAGS = $(heap_checker_unittest_CXXFLAGS) +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_LDFLAGS = $(heap_checker_unittest_LDFLAGS) +# We want libtcmalloc last on the link line, but due to a bug in +# libtool involving convenience libs, they need to come last on the +# link line in order to get dependency ordering right. This is ok: +# convenience libraries are .a's, so tcmalloc is still the last .so. +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_LDADD = libtcmalloc_debug.la liblogging.la \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@ $(PTHREAD_LIBS) + + +### ------- CPU profiler + +### The header files we use. We divide into categories based on directory +@WITH_CPU_PROFILER_TRUE@S_CPU_PROFILER_INCLUDES = src/profiledata.h \ +@WITH_CPU_PROFILER_TRUE@ src/profile-handler.h \ +@WITH_CPU_PROFILER_TRUE@ src/getpc.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/basictypes.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/commandlineflags.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/googleinit.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/logging.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/simple_mutex.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/sysinfo.h \ +@WITH_CPU_PROFILER_TRUE@ $(SPINLOCK_INCLUDES) \ +@WITH_CPU_PROFILER_TRUE@ $(LOGGING_INCLUDES) + +@WITH_CPU_PROFILER_TRUE@SG_CPU_PROFILER_INCLUDES = src/gperftools/profiler.h +@WITH_CPU_PROFILER_TRUE@CPU_PROFILER_INCLUDES = $(S_CPU_PROFILER_INCLUDES) $(SG_CPU_PROFILER_INCLUDES) \ +@WITH_CPU_PROFILER_TRUE@ $(SG_STACKTRACE_INCLUDES) + +@WITH_CPU_PROFILER_TRUE@libprofiler_la_SOURCES = src/profiler.cc \ +@WITH_CPU_PROFILER_TRUE@ src/profile-handler.cc \ +@WITH_CPU_PROFILER_TRUE@ src/profiledata.cc \ +@WITH_CPU_PROFILER_TRUE@ $(CPU_PROFILER_INCLUDES) + +@WITH_CPU_PROFILER_TRUE@libprofiler_la_LIBADD = libstacktrace.la libmaybe_threads.la libfake_stacktrace_scope.la +# We have to include ProfileData for profiledata_unittest +@WITH_CPU_PROFILER_TRUE@CPU_PROFILER_SYMBOLS = '(ProfilerStart|ProfilerStartWithOptions|ProfilerStop|ProfilerFlush|ProfilerEnable|ProfilerDisable|ProfilingIsEnabledForAllThreads|ProfilerRegisterThread|ProfilerGetCurrentState|ProfilerState|ProfileData|ProfileHandler|ProfilerGetStackTrace)' +@WITH_CPU_PROFILER_TRUE@libprofiler_la_LDFLAGS = -export-symbols-regex $(CPU_PROFILER_SYMBOLS) \ +@WITH_CPU_PROFILER_TRUE@ -version-info @PROFILER_SO_VERSION@ + + +# See discussion above (under LIBTCMALLOC_MINIMAL) for why we do this. +# Basically it's to work around systems where --rpath doesn't work right. +@WITH_CPU_PROFILER_TRUE@LIBPROFILER = libstacktrace.la libprofiler.la +#WINDOWS_PROJECTS += vsprojects/getpc_test/getpc_test.vcxproj +@WITH_CPU_PROFILER_TRUE@getpc_test_SOURCES = src/tests/getpc_test.cc src/getpc.h +#WINDOWS_PROJECTS += vsprojects/profiledata_unittest/profiledata_unittest.vcxproj +@WITH_CPU_PROFILER_TRUE@profiledata_unittest_SOURCES = src/tests/profiledata_unittest.cc \ +@WITH_CPU_PROFILER_TRUE@ src/profiledata.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/commandlineflags.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/logging.h \ +@WITH_CPU_PROFILER_TRUE@ src/base/basictypes.h + +@WITH_CPU_PROFILER_TRUE@profiledata_unittest_LDADD = $(LIBPROFILER) +@WITH_CPU_PROFILER_TRUE@profile_handler_unittest_SOURCES = src/tests/profile-handler_unittest.cc \ +@WITH_CPU_PROFILER_TRUE@ src/profile-handler.h + +@WITH_CPU_PROFILER_TRUE@profile_handler_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) +@WITH_CPU_PROFILER_TRUE@profile_handler_unittest_LDFLAGS = $(PTHREAD_CFLAGS) +@WITH_CPU_PROFILER_TRUE@profile_handler_unittest_LDADD = $(LIBPROFILER) $(PTHREAD_LIBS) +@WITH_CPU_PROFILER_TRUE@profiler_unittest_sh_SOURCES = src/tests/profiler_unittest.sh +@WITH_CPU_PROFILER_TRUE@PROFILER_UNITTEST_INCLUDES = src/config_for_unittests.h \ +@WITH_CPU_PROFILER_TRUE@ src/gperftools/profiler.h + +@WITH_CPU_PROFILER_TRUE@PROFILER_UNITTEST_SRCS = src/tests/profiler_unittest.cc \ +@WITH_CPU_PROFILER_TRUE@ src/tests/testutil.h src/tests/testutil.cc \ +@WITH_CPU_PROFILER_TRUE@ $(PROFILER_UNITTEST_INCLUDES) + +@WITH_CPU_PROFILER_TRUE@profiler1_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS) +@WITH_CPU_PROFILER_TRUE@profiler1_unittest_CXXFLAGS = -g -DNO_THREADS $(AM_CXXFLAGS) +@WITH_CPU_PROFILER_TRUE@profiler1_unittest_LDADD = $(LIBPROFILER) +@WITH_CPU_PROFILER_TRUE@profiler2_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS) +@WITH_CPU_PROFILER_TRUE@profiler2_unittest_CXXFLAGS = -g -DNO_THREADS $(AM_CXXFLAGS) +@WITH_CPU_PROFILER_TRUE@profiler2_unittest_LDADD = -lstacktrace -lprofiler +# We depend on -lprofiler but haven't yet said how to build it. Do so now. +@WITH_CPU_PROFILER_TRUE@profiler2_unittest_DEPENDENCIES = $(LIBPROFILER) +@WITH_CPU_PROFILER_TRUE@profiler3_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS) +@WITH_CPU_PROFILER_TRUE@profiler3_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_CPU_PROFILER_TRUE@profiler3_unittest_LDFLAGS = $(PTHREAD_CFLAGS) +@WITH_CPU_PROFILER_TRUE@profiler3_unittest_LDADD = $(LIBPROFILER) $(PTHREAD_LIBS) +@WITH_CPU_PROFILER_TRUE@profiler4_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS) +@WITH_CPU_PROFILER_TRUE@profiler4_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) +@WITH_CPU_PROFILER_TRUE@profiler4_unittest_LDFLAGS = $(PTHREAD_CFLAGS) +@WITH_CPU_PROFILER_TRUE@profiler4_unittest_LDADD = -lstacktrace -lprofiler $(PTHREAD_LIBS) +# We depend on -lprofiler but haven't yet said how to build it. Do so now. +@WITH_CPU_PROFILER_TRUE@profiler4_unittest_DEPENDENCIES = $(LIBPROFILER) +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_and_profiler_la_SOURCES = $(libtcmalloc_la_SOURCES) $(libprofiler_la_SOURCES) +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_and_profiler_la_CXXFLAGS = $(libtcmalloc_la_CXXFLAGS) $(libprofiler_la_CXXFLAGS) +# Since this library is meant to be used as a .a, I don't worry as much +# about .so versioning. I just give the libtcmalloc version number. +# TODO(csilvers): use -export-symbols-regex? +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_and_profiler_la_LDFLAGS = $(PTHREAD_CFLAGS) \ +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ -version-info @TCMALLOC_AND_PROFILER_SO_VERSION@ + +# We don't include libprofiler_la_LIBADD here because all it adds is +# libstacktrace.la, which we already get via libtcmalloc. Trying to +# specify it twice causes link-time duplicate-definition errors. :-( +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_and_profiler_la_LIBADD = $(libtcmalloc_la_LIBADD) +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_and_profiler_unittest_SOURCES = $(tcmalloc_both_unittest_srcs) +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_and_profiler_unittest_CXXFLAGS = $(tcmalloc_both_unittest_cflags) +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_and_profiler_unittest_LDFLAGS = $(tcmalloc_both_unittest_lflags) +@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_and_profiler_unittest_LDADD = libtcmalloc_and_profiler.la + +# http://linux.die.net/man/1/pkg-config, http://pkg-config.freedesktop.org/wiki +pkgconfigdir = $(libdir)/pkgconfig +pkgconfig_DATA = libtcmalloc.pc libtcmalloc_minimal.pc \ + libtcmalloc_debug.pc libtcmalloc_minimal_debug.pc \ + libprofiler.pc + +CLEANFILES = $(pkgconfig_DATA) +EXTRA_DIST = packages/rpm.sh packages/rpm/rpm.spec packages/deb.sh packages/deb \ + $(SCRIPTS) libtool \ + src/windows/get_mangled_names.cc src/windows/override_functions.cc \ + src/windows/config.h src/windows/gperftools/tcmalloc.h \ + docs/pprof.see_also src/windows/TODO \ + $(WINDOWS_PROJECTS) \ + src/solaris/libstdc++.la + +all: all-am + +.SUFFIXES: +.SUFFIXES: .c .cc .lo .log .o .obj .test .test$(EXEEXT) .trs +am--refresh: Makefile + @: +$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(am__configure_deps) + @for dep in $?; do \ + case '$(am__configure_deps)' in \ + *$$dep*) \ + echo ' cd $(srcdir) && $(AUTOMAKE) --gnu'; \ + $(am__cd) $(srcdir) && $(AUTOMAKE) --gnu \ + && exit 0; \ + exit 1;; \ + esac; \ + done; \ + echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu Makefile'; \ + $(am__cd) $(top_srcdir) && \ + $(AUTOMAKE) --gnu Makefile +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status + @case '$?' in \ + *config.status*) \ + echo ' 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src/tests/$(DEPDIR)/tcmalloc_minimal_large_unittest-tcmalloc_large_unittest.Po + -rm -f src/tests/$(DEPDIR)/tcmalloc_minimal_unittest-tcmalloc_unittest.Po + -rm -f src/tests/$(DEPDIR)/tcmalloc_minimal_unittest-testutil.Po + -rm -f src/tests/$(DEPDIR)/tcmalloc_unittest-tcmalloc_unittest.Po + -rm -f src/tests/$(DEPDIR)/tcmalloc_unittest-testutil.Po + -rm -f src/tests/$(DEPDIR)/thread_dealloc_unittest-testutil.Po + -rm -f src/tests/$(DEPDIR)/thread_dealloc_unittest-thread_dealloc_unittest.Po + -rm -f src/windows/$(DEPDIR)/addressmap_unittest-port.Po + -rm -f src/windows/$(DEPDIR)/ia32_modrm_map.Plo + -rm -f src/windows/$(DEPDIR)/ia32_opcode_map.Plo + -rm -f src/windows/$(DEPDIR)/mini_disassembler.Plo + -rm -f src/windows/$(DEPDIR)/patch_functions.Plo + -rm -f src/windows/$(DEPDIR)/port.Plo + -rm -f src/windows/$(DEPDIR)/preamble_patcher.Plo + -rm -f src/windows/$(DEPDIR)/preamble_patcher_with_stub.Plo + -rm -f src/windows/$(DEPDIR)/system-alloc.Plo + -rm -f Makefile +maintainer-clean-am: distclean-am maintainer-clean-generic + +mostlyclean: mostlyclean-am + +mostlyclean-am: mostlyclean-compile mostlyclean-generic \ + mostlyclean-libtool + +pdf: pdf-am + +pdf-am: + +ps: ps-am + +ps-am: + +uninstall-am: uninstall-binPROGRAMS uninstall-binSCRIPTS \ + uninstall-dist_docDATA uninstall-googleincludeHEADERS \ + uninstall-libLTLIBRARIES uninstall-man \ + uninstall-nodist_perftoolsincludeHEADERS \ + uninstall-perftoolsincludeHEADERS uninstall-pkgconfigDATA + +uninstall-man: uninstall-man1 + +.MAKE: check-am install-am install-strip + +.PHONY: CTAGS GTAGS TAGS all all-am all-local am--depfiles am--refresh \ + check check-TESTS check-am clean clean-binPROGRAMS \ + clean-cscope clean-generic clean-libLTLIBRARIES clean-libtool \ + clean-noinstLTLIBRARIES clean-noinstPROGRAMS cscope \ + cscopelist-am ctags ctags-am dist dist-all dist-bzip2 \ + dist-gzip dist-hook dist-lzip dist-shar dist-tarZ dist-xz \ + dist-zip dist-zstd distcheck distclean distclean-compile \ + distclean-generic distclean-hdr distclean-libtool \ + distclean-tags distcleancheck distdir distuninstallcheck dvi \ + dvi-am html html-am info info-am install install-am \ + install-binPROGRAMS install-binSCRIPTS install-data \ + install-data-am install-dist_docDATA install-dvi \ + install-dvi-am install-exec install-exec-am install-exec-local \ + install-googleincludeHEADERS install-html install-html-am \ + install-info install-info-am install-libLTLIBRARIES \ + install-man install-man1 \ + install-nodist_perftoolsincludeHEADERS install-pdf \ + install-pdf-am install-perftoolsincludeHEADERS \ + install-pkgconfigDATA install-ps install-ps-am install-strip \ + installcheck installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + recheck tags tags-am uninstall uninstall-am \ + uninstall-binPROGRAMS uninstall-binSCRIPTS \ + uninstall-dist_docDATA uninstall-googleincludeHEADERS \ + uninstall-libLTLIBRARIES uninstall-man uninstall-man1 \ + uninstall-nodist_perftoolsincludeHEADERS \ + uninstall-perftoolsincludeHEADERS uninstall-pkgconfigDATA + +.PRECIOUS: Makefile + + +@WITH_STACK_TRACE_TRUE@pprof-symbolize : $(top_srcdir)/src/pprof +@WITH_STACK_TRACE_TRUE@ cp -p $(top_srcdir)/src/pprof $@ +@WITH_STACK_TRACE_TRUE@pprof_unittest: $(top_srcdir)/src/pprof +@WITH_STACK_TRACE_TRUE@ $(top_srcdir)/src/pprof -test +# This script preloads libtcmalloc, and calls two other binaries as well +# TODO(csilvers): replace by 'if ! cmp $^ $@ >/dev/null 2>&; then ...; fi' +@ENABLE_STATIC_FALSE@@MINGW_FALSE@maybe_threads_unittest.sh$(EXEEXT): $(top_srcdir)/$(maybe_threads_unittest_sh_SOURCES) \ +@ENABLE_STATIC_FALSE@@MINGW_FALSE@ $(LIBTCMALLOC_MINIMAL) \ +@ENABLE_STATIC_FALSE@@MINGW_FALSE@ low_level_alloc_unittest +@ENABLE_STATIC_FALSE@@MINGW_FALSE@ rm -f $@ +@ENABLE_STATIC_FALSE@@MINGW_FALSE@ cp -p $(top_srcdir)/$(maybe_threads_unittest_sh_SOURCES) $@ +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test.sh$(EXEEXT): $(top_srcdir)/$(debugallocation_test_sh_SOURCES) \ +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@ debugallocation_test +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@ rm -f $@ +@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@ cp -p $(top_srcdir)/$(debugallocation_test_sh_SOURCES) $@ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest.sh$(EXEEXT): $(top_srcdir)/$(tcmalloc_unittest_sh_SOURCES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ tcmalloc_unittest +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ rm -f $@ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ cp -p $(top_srcdir)/$(tcmalloc_unittest_sh_SOURCES) $@ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test.sh$(EXEEXT): $(top_srcdir)/$(sampling_test_sh_SOURCES) \ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampling_test +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ rm -f $@ +@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ cp -p $(top_srcdir)/$(sampling_test_sh_SOURCES) $@ +@WITH_HEAP_PROFILER_TRUE@heap-profiler_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) \ +@WITH_HEAP_PROFILER_TRUE@ heap-profiler_unittest +@WITH_HEAP_PROFILER_TRUE@ rm -f $@ +@WITH_HEAP_PROFILER_TRUE@ cp -p $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) $@ +@WITH_HEAP_CHECKER_TRUE@heap-checker_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) \ +@WITH_HEAP_CHECKER_TRUE@ heap-checker_unittest +@WITH_HEAP_CHECKER_TRUE@ rm -f $@ +@WITH_HEAP_CHECKER_TRUE@ cp -p $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) $@ +@WITH_HEAP_CHECKER_TRUE@heap-checker-death_unittest.sh$(EXEEXT): $(heap_checker_death_unittest_sh_SOURCES) \ +@WITH_HEAP_CHECKER_TRUE@ heap-checker_unittest +@WITH_HEAP_CHECKER_TRUE@ rm -f $@ +@WITH_HEAP_CHECKER_TRUE@ cp -p $(top_srcdir)/$(heap_checker_death_unittest_sh_SOURCES) $@ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test.sh$(EXEEXT): $(top_srcdir)/$(sampling_test_sh_SOURCES) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ sampling_debug_test +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ rm -f $@ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@ cp -p $(top_srcdir)/$(sampling_test_sh_SOURCES) $@ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap-profiler_debug_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@ heap-profiler_debug_unittest +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@ rm -f $@ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@ cp -p $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) $@ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap-checker_debug_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) \ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@ heap-checker_debug_unittest +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@ rm -f $@ +@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@ cp -p $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) $@ +@WITH_CPU_PROFILER_TRUE@profiler_unittest.sh$(EXEEXT): $(top_srcdir)/$(profiler_unittest_sh_SOURCES) \ +@WITH_CPU_PROFILER_TRUE@ profiler1_unittest profiler2_unittest \ +@WITH_CPU_PROFILER_TRUE@ profiler3_unittest profiler4_unittest +@WITH_CPU_PROFILER_TRUE@ rm -f $@ +@WITH_CPU_PROFILER_TRUE@ cp -p $(top_srcdir)/$(profiler_unittest_sh_SOURCES) $@ + +# Do the weakening on some exported libtcmalloc symbols. +install-exec-local: all-local +all-local: $(LIBS_TO_WEAKEN) + for la in $(LIBS_TO_WEAKEN); do lib=".libs/`basename $$la .la`.a"; [ ! -f "$$lib" ] || $(WEAKEN) "$$lib"; done + +rpm: dist-gzip packages/rpm.sh packages/rpm/rpm.spec + @cd packages && ./rpm.sh ${PACKAGE} ${VERSION} + +deb: dist-gzip packages/deb.sh packages/deb/* + @cd packages && ./deb.sh ${PACKAGE} ${VERSION} + +# I get the description and URL lines from the rpm spec. I use sed to +# try to rewrite exec_prefix, libdir, and includedir in terms of +# prefix, if possible. +libtcmalloc.pc: Makefile packages/rpm/rpm.spec + echo 'prefix=$(prefix)' > "$@".tmp + echo 'exec_prefix='`echo '$(exec_prefix)' | sed 's@^$(prefix)@$${prefix}@'` >> "$@".tmp + echo 'libdir='`echo '$(libdir)' | sed 's@^$(exec_prefix)@$${exec_prefix}@'` >> "$@".tmp + echo 'includedir='`echo '$(includedir)' | sed 's@^$(prefix)@$${prefix}@'` >> "$@".tmp + echo '' >> "$@".tmp + echo 'Name: $(PACKAGE)' >> "$@".tmp + echo 'Version: $(VERSION)' >> "$@".tmp + -grep '^Summary:' $(top_srcdir)/packages/rpm/rpm.spec | sed s/^Summary:/Description:/ | head -n1 >> "$@".tmp + -grep '^URL: ' $(top_srcdir)/packages/rpm/rpm.spec >> "$@".tmp + echo 'Requires:' >> "$@".tmp + echo 'Libs: -L$${libdir} -ltcmalloc' >> "$@".tmp + echo 'Libs.private: $(PTHREAD_CFLAGS) $(PTHREAD_LIBS)' >> "$@".tmp + echo 'Cflags: -I$${includedir}' >> "$@".tmp + mv -f "$@".tmp "$@" + +# The other versions are mostly the same. +libtcmalloc_minimal.pc: libtcmalloc.pc + cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_minimal/ > "$@" + +libtcmalloc_debug.pc: libtcmalloc.pc + cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_debug/ > "$@" + +libtcmalloc_minimal_debug.pc: libtcmalloc.pc + cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_minimal_debug/ > "$@" + +libprofiler.pc: libtcmalloc.pc + cat libtcmalloc.pc | sed s/-ltcmalloc/-lprofiler/ > "$@" + +libtool: $(LIBTOOL_DEPS) + $(SHELL) ./config.status --recheck + +@GENERATE_CHANGELOG_RULES@ + +# Windows wants write permission to .vcxproj files and maybe even sln files. +dist-hook: dist-ChangeLog + test -e "$(distdir)/vsprojects" \ + && chmod -R u+w $(distdir)/*.sln $(distdir)/vsprojects/ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/trunk/3rdparty/gperftools-2-fit/NEWS b/trunk/3rdparty/gperftools-2-fit/NEWS new file mode 100644 index 000000000..44095ecf9 --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/NEWS @@ -0,0 +1,1193 @@ +== 2 March 2021 == +gperftools 2.9.1 is out! + +Minor fixes landed since previous release: + +* OSX builds new prefer backtrace() and have somewhat working heap + sampling. + +* Incorrect assertion failure was fixed that crashed tcmalloc if + assertions were on and sized delete was used. More details in github + issue #1254. + +== 21 February 2021 == +gperftools 2.9 is out! + +Few more changes landed compared to rc: + +* Venkatesh Srinivas has contributed thread-safety annotations + support. + +* couple more unit test bugs that caused tcmalloc_unittest to fail on + recent clang has been fixed. + +* usage of unsupportable linux_syscall_support.h has been removed from + few places. Building with --disable-heap-checker now completely + avoids it. Expect complete death of this header in next major + release. + +== 14 February 2021 == +gperftools 2.9rc is out! + +Here are notable changes: + +* Jarno Rajahalme has contributed fix for crashing bug in syscalls + support for aarch64. + +* User SSE4 has contributed basic support for Elbrus 2000 architecture + (!) + +* Venkatesh Srinivas has contributed cleanup to atomic ops. + +* Đoàn Trần Công Danh has fixed cpu profiler compilation on musl. + +* there is now better backtracing support for aarch64 and + riscv. x86-64 with frame pointers now also defaults to this new + "generic" frame pointer backtracer. + +* emergency malloc is now enabled by default. Fixes hang on musl when + libgcc backtracer is enabled. + +* bunch of legacy config tests has been removed + +== 20 December 2020 == +gperftools 2.8.1 is out! + +Here are notable changes: + +* previous release contained change to release memory without page + heap lock, but this change had at least one bug that caused to + crashes and corruption when running under aggressive decommit mode + (this is not default). While we check for other bugs, this feature + was reverted. See github issue #1204 and issue #1227. + +* stack traces depth captured by gperftools is now up to 254 levels + deep. Thanks to Kerrick Staley for this small but useful tweak. + +* Levon Ter-Grigoryan has contributed small fix for compiler warning. + +* Grant Henke has contributed updated detection of program counter + register for OS X on arm64. + +* Tim Gates has contributed small typo fix. + +* Steve Langasek has contributed basic build fixes for riscv64 (!). + +* Isaac Hier and okhowang have contributed premiliminary port of build + infrastructure to cmake. This works, but it is very premiliminary. + Autotools-based build is the only officially supported build for + now. + +== 6 July 2020 == +gperftools 2.8 is out! + +Here are notable changes: + +* ProfilerGetStackTrace is now officially supported API for + libprofiler. Contributed by Kirill Müller. + +* Build failures on mingw were fixed. This fixed issue #1108. + +* Build failure of page_heap_test on MSVC was fixed. + +* Ryan Macnak contributed fix for compiling linux syscall support on + i386 and recent GCCs. This fixed issue #1076. + +* test failures caused by new gcc 10 optimizations were fixed. Same + change also fixed tests on clang. + +== 8 Mar 2020 == +gperftools 2.8rc is out! + +Here are notable changes: + +* building code now requires c++11 or later. Bundled MSVC project was + converted to Visual Studio 2015. + +* User obones contributed fix for windows x64 TLS callbacks. This + fixed leak of thread caches on thread exists in 64-bit windows. + +* releasing memory back to kernel is now made with page heap lock + dropped. + +* HoluWu contributed fix for correct malloc patching on debug builds + on windows. This configuration previously crashed. + +* Romain Geissler contributed fix for tls access during early tls + initialization on dlopen. + +* large allocation reports are now silenced by default. Since not all + programs want their stderr polluted by those messages. Contributed + by Junhao Li. + +* HolyWu contributed improvements to MSVC project files. Notably, + there is now project for "overriding" version of tcmalloc. + +* MS-specific _recalloc is now correctly zeroing only malloced + part. This fix was contributed by HolyWu. + +* Brian Silverman contributed correctness fix to sampler_test. + +* Gabriel Marin ported few fixes from chromium's fork. As part of + those fixes, we reduced number of static initializers (forbidden in + chromium). Also we now syscalls via syscall function instead of + reimplementing direct way to make syscalls on each platform. + +* Brian Silverman fixed flakiness in page heap test. + +* There is now configure flag to skip installing perl pprof, since + external golang pprof is much superior. --disable-deprecated-pprof + is the flag. + +* Fabric Fontaine contributed fixes to drop use of nonstandard + __off64_t type. + +* Fabrice Fontaine contributed build fix to check for presence of + nonstandard __sbrk functions. It is only used by mmap hooks code and + (rightfully) not available on musl. + +* Fabrice Fontaine contributed build fix around mmap64 macro and + function conflict in same cases. + +* there is now configure time option to enable aggressive decommit by + default. Contributed by Laurent + Stacul. --enable-aggressive-decommit-by-default is the flag. + +* Tulio Magno Quites Machado Filho contributed build fixes for ppc + around ucontext access. + +* User pkubaj contributed couple build fixes for FreeBSD/ppc. + +* configure now always assumes we have mmap. This fixes configure + failures on some linux guests inside virtualbox. This fixed issue + #1008. + +* User shipujin contributed syscall support fixes for mips64 (big and + little endian). + +* Henrik Edin contributed configurable support for wide range of + malloc page sizes. 4K, 8K, 16K, 32K, 64K, 128K and 256K are now + supported via existing --with-tcmalloc-pagesize flag to configure. + +* Jon Kohler added overheads fields to per-size-class textual + stats. Stats that are available via + MallocExtension::instance()->GetStats(). + +* tcmalloc can now avoid fallback from memfs to default sys + allocator. TCMALLOC_MEMFS_DISABLE_FALLBACK switches this on. This + was contributed by Jon Kohler. + +* Ilya Leoshkevich fixed mmap syscall support on s390. + +* Todd Lipcon contributed small build warning fix. + +* User prehistoricpenguin contributed misc source file mode fixes (we + still had few few c++ files marked executable). + +* User invalid_ms_user contributed fix for typo. + +* Jakub Wilk contributed typos fixes. + +== 29 Apr 2018 == +gperftools 2.7 is out! + +Few people contributed minor, but important fixes since rc. + +Changes: + +* bug in span stats printing introduced by new scalable page heap + change was fixed. + +* Christoph Müllner has contributed couple warnings fixes and initial + support for aarch64_ilp32 architecture. + +* Ben Dang contributed documentation fix for heap checker. + +* Fabrice Fontaine contributed fixed for linking benchmarks with + --disable-static. + +* Holy Wu has added sized deallocation unit tests. + +* Holy Wu has enabled support of sized deallocation (c++14) on recent + MSVC. + +* Holy Wu has fixed MSVC build in WIN32_OVERRIDE_ALLOCATORS mode. This + closed issue #716. + +* Holy Wu has contributed cleanup of config.h used on windows. + +* Mao Huang has contributed couple simple tcmalloc changes from + chromium code base. Making our tcmalloc forks a tiny bit closer. + +* issue #946 that caused compilation failures on some Linux clang + installations has been fixed. Much thanks to github user htuch for + helping to diagnose issue and proposing a fix. + +* Tulio Magno Quites Machado Filho has contributed build-time fix for + PPC (for problem introduced in one of commits since RC). + +== 18 Mar 2018 == +gperftools 2.7rc is out! + +Changes: + +* Most notable change in this release is that very large allocations + (>1MiB) are now handled be O(log n) implementation. This is + contributed by Todd Lipcon based on earlier work by Aliaksei + Kandratsenka and James Golick. Special thanks to Alexey Serbin for + contributing OSX fix for that commit. + +* detection of sized deallocation support is improved. Which should + fix another set of issues building on OSX. Much thanks to Alexey + Serbin for reporting the issue, suggesting a fix and verifying it. + +* Todd Lipcon made a change to extend page heaps freelists to 1 MiB + (up from 1MiB - 8KiB). This may help a little for some workloads. + +* Ishan Arora contributed typo fix to docs + +== 9 Dec 2017 == +gperftools 2.6.3 is out! + +Just two fixes were made in this release: + +* Stephan Zuercher has contributed a build fix for some recent XCode + versions. See issue #942 for more details. + +* assertion failure on some windows builds introduced by 2.6.2 was + fixed. Thanks to github user nkeemik for reporting it and testing + fix. See issue #944 for more details. + +== 30 Nov 2017 == +gperftools 2.6.2 is out! + +Most notable change is recently added support for C++17 over-aligned +allocation operators contributed by Andrey Semashev. I've extended his +implemention to have roughly same performance as malloc/new. This +release also has native support for C11 aligned_alloc. + +Rest is mostly bug fixes: + +* Jianbo Yang has contributed a fix for potentially severe data race + introduced by malloc fast-path work in gperftools 2.6. This race + could cause occasional violation of total thread cache size + constraint. See issue #929 for more details. + +* Correct behavior in out-of-memory condition in fast-path cases was + restored. This was another bug introduced by fast-path optimization + in gperftools 2.6 which caused operator new to silently return NULL + instead of doing correct C++ OOM handling (calling new_handler and + throwing bad_alloc). + +* Khem Raj has contributed couple build fixes for newer glibcs (ucontext_t vs + struct ucontext and loff_t definition) + +* Piotr Sikora has contributed build fix for OSX (not building unwind + benchmark). This was issue #910 (thanks to Yuriy Solovyov for + reporting it). + +* Dorin Lazăr has contributed fix for compiler warning + +* issue #912 (occasional deadlocking calling getenv too early on + windows) was fixed. Thanks to github user shangcangriluo for + reporting it. + +* Couple earlier lsan-related commits still causing occasional issues + linking on OSX has been reverted. See issue #901. + +* Volodimir Krylov has contributed GetProgramInvocationName for FreeBSD + +* changsu lee has contributed couple minor correctness fixes (missing + va_end() and missing free() call in rarely executed Symbolize path) + +* Andrew C. Morrow has contributed some more page heap stats. See issue + #935. + +* some cases of built-time warnings from various gcc/clang versions + about throw() declarations have been fixes. + +== 9 July 2017 == + +gperftools 2.6.1 is out! This is mostly bug-fixes release. + +* issue #901: build issue on OSX introduced in last-time commit in 2.6 + was fixed (contributed by Francis Ricci) + +* tcmalloc_minimal now works on 32-bit ABI of mips64. This is issue + #845. Much thanks to Adhemerval Zanella and github user mtone. + +* Romain Geissler contributed build fix for -std=c++17. This is pull + request #897. + +* As part of fixing issue #904, tcmalloc atfork handler is now + installed early. This should fix slight chance of hitting deadlocks + at fork in some cases. + +== 4 July 2017 == + +gperftools 2.6 is out! + +* Kim Gräsman contributed documentation update for HEAPPROFILESIGNAL + environment variable + +* KernelMaker contributed fix for population of min_object_size field + returned by MallocExtension::GetFreeListSizes + +* commit 8c3dc52fcfe0 "issue-654: [pprof] handle split text segments" + was reverted. Some OSX users reported issues with this commit. Given + our pprof implementation is strongly deprecated it is best to drop + recently introduced features rather than breaking it badly. + +* Francis Ricci contributed improvement for interaction with leak + sanitizer. + +== 22 May 2017 == + +gperftools 2.6rc4 is out! + +Dynamic sized delete is disabled by default again. There is no hope of +it working with eager dynamic symbols resolution (-z now linker +flag). More details in +https://bugzilla.redhat.com/show_bug.cgi?id=1452813 + +== 21 May 2017 == + +gperftools 2.6rc3 is out! + +gperftools compilation on older systems (e.g. rhel 5) was fixed. This +was originally reported in github issue #888. + +== 14 May 2017 == + +gperftools 2.6rc2 is out! + +Just 2 small fixes on top of 2.6rc. Particularly, Rajalakshmi +Srinivasaraghavan contributed build fix for ppc32. + +== 14 May 2017 == + +gperftools 2.6rc is out! + +Highlights of this release are performance work on malloc fast-path +and support for more modern visual studio runtimes, and deprecation of +bundled pprof. Another significant performance-affecting changes are +reverting central free list transfer batch size back to 32 and +disabling of aggressive decommit mode by default. + +Note, while we still ship perl implementation of pprof, everyone is +strongly advised to use golang reimplementation of pprof from +https://github.com/google/pprof. + +Here are notable changes in more details (and see ChangeLog for full +details): + +* a bunch of performance tweaks to tcmalloc fast-path were + merged. This speeds up critical path of tcmalloc by few tens of + %. Well tuned and allocation-heavy programs should see substantial + performance boost (should apply to all modern elf platforms). This + is based on Google-internal tcmalloc changes for fast-path (with + obvious exception of lacking per-cpu mode, of course). Original + changes were made by Aliaksei Kandratsenka. And Andrew Hunter, + Dmitry Vyukov and Sanjay Ghemawat contributed with reviews and + discussions. + +* Architectures with 48 bits address space (x86-64 and aarch64) now + use faster 2 level page map. This was ported from Google-internal + change by Sanjay Ghemawat. + +* Default value of TCMALLOC_TRANSFER_NUM_OBJ was returned back to + 32. Larger values have been found to hurt certain programs (but help + some other benchmarks). Value can still be tweaked at run time via + environment variable. + +* tcmalloc aggressive decommit mode is now disabled by default + again. It was found to degrade performance of certain tensorflow + benchmarks. Users who prefer smaller heap over small performance win + can still set environment variable TCMALLOC_AGGRESSIVE_DECOMMIT=t. + +* runtime switchable sized delete support has be fixed and re-enabled + (on GNU/Linux). Programs that use C++ 14 or later that use sized + delete can again be sped up by setting environment variable + TCMALLOC_ENABLE_SIZED_DELETE=t. Support for enabling sized + deallication support at compile-time is still present, of course. + +* tcmalloc now explicitly avoids use of MADV_FREE on Linux, unless + TCMALLOC_USE_MADV_FREE is defined at compile time. This is because + performance impact of MADV_FREE is not well known. Original issue + #780 raised by Mathias Stearn. + +* issue #786 with occasional deadlocks in stack trace capturing via + libunwind was fixed. It was originally reported as Ceph issue: + http://tracker.ceph.com/issues/13522 + +* ChangeLog is now automatically generated from git log. Old ChangeLog + is now ChangeLog.old. + +* tcmalloc now provides implementation of nallocx. Function was + originally introduced by jemalloc and can be used to return real + allocation size given allocation request size. This is ported from + Google-internal tcmalloc change contributed by Dmitry Vyukov. + +* issue #843 which made tcmalloc crash when used with erlang runtime + was fixed. + +* issue #839 which caused tcmalloc's aggressive decommit mode to + degrade performance in some corner cases was fixed. + +* Bryan Chan contributed support for 31-bit s390. + +* Brian Silverman contributed compilation fix for 32-bit ARMs + +* Issue #817 that was causing tcmalloc to fail on windows 10 and + later, as well as on recent msvc was fixed. We now patch _free_base + as well. + +* a bunch of minor documentaion/typos fixes by: Mike Gaffney + , iivlev , savefromgoogle + , John McDole + , zmertens , Kirill Müller + , Eugene , Ola Olsson + , Mostyn Bramley-Moore + +* Tulio Magno Quites Machado Filho has contributed removal of + deprecated glibc malloc hooks. + +* Issue #827 that caused intercepting malloc on osx 10.12 to fail was + fixed, by copying fix made by Mike Hommey to jemalloc. Much thanks + to Koichi Shiraishi and David Ribeiro Alves for reporting it and + testing fix. + +* Aman Gupta and Kenton Varda contributed minor fixes to pprof (but + note again that pprof is deprecated) + +* Ryan Macnak contributed compilation fix for aarch64 + +* Francis Ricci has fixed unaligned memory access in debug allocator + +* TCMALLOC_PAGE_FENCE_NEVER_RECLAIM now actually works thanks to + contribution by Andrew Morrow. + +== 12 Mar 2016 == + +gperftools 2.5 is out! + +Just single bugfix was merged after rc2. Which was fix for issue #777. + +== 5 Mar 2016 == + +gperftools 2.5rc2 is out! + +New release contains just few commits on top of first release +candidate. One of them is build fix for Visual Studio. Another +significant change is that dynamic sized delete is now disabled by +default. It turned out that IFUNC relocations are not supporting our +advanced use case on all platforms and in all cases. + +== 21 Feb 2016 == + +gperftools 2.5rc is out! + +Here are major changes since 2.4: + +* we've moved to github! + +* Bryan Chan has contributed s390x support + +* stacktrace capturing via libgcc's _Unwind_Backtrace was implemented + (for architectures with missing or broken libunwind). + +* "emergency malloc" was implemented. Which unbreaks recursive calls + to malloc/free from stacktrace capturing functions (such us glib'c + backtrace() or libunwind on arm). It is enabled by + --enable-emergency-malloc configure flag or by default on arm when + --enable-stacktrace-via-backtrace is given. It is another fix for a + number common issues people had on platforms with missing or broken + libunwind. + +* C++14 sized-deallocation is now supported (on gcc 5 and recent + clangs). It is off by default and can be enabled at configure time + via --enable-sized-delete. On GNU/Linux it can also be enabled at + run-time by either TCMALLOC_ENABLE_SIZED_DELETE environment variable + or by defining tcmalloc_sized_delete_enabled function which should + return 1 to enable it. + +* we've lowered default value of transfer batch size to 512. Previous + value (bumped up in 2.1) was too high and caused performance + regression for some users. 512 should still give us performance + boost for workloads that need higher transfer batch size while not + penalizing other workloads too much. + +* Brian Silverman's patch finally stopped arming profiling timer + unless profiling is started. + +* Andrew Morrow has contributed support for obtaining cache size of the + current thread and softer idling (for use in MongoDB). + +* we've implemented few minor performance improvements, particularly + on malloc fast-path. + +A number of smaller fixes were made. Many of them were contributed: + +* issue that caused spurious profiler_unittest.sh failures was fixed. + +* Jonathan Lambrechts contributed improved callgrind format support to + pprof. + +* Matt Cross contributed better support for debug symbols in separate + files to pprof. + +* Matt Cross contributed support for printing collapsed stack frame + from pprof aimed at producing flame graphs. + +* Angus Gratton has contributed documentation fix mentioning that on + windows only tcmalloc_minimal is supported. + +* Anton Samokhvalov has made tcmalloc use mi_force_{un,}lock on OSX + instead of pthread_atfork. Which apparently fixes forking + issues tcmalloc had on OSX. + +* Milton Chiang has contributed support for building 32-bit gperftools + on arm8. + +* Patrick LoPresti has contributed support for specifying alternative + profiling signal via CPUPROFILE_TIMER_SIGNAL environment variable. + +* Paolo Bonzini has contributed support configuring filename for + sending malloc tracing output via TCMALLOC_TRACE_FILE environment + variable. + +* user spotrh has enabled use of futex on arm. + +* user mitchblank has contributed better declaration for arg-less + profiler functions. + +* Tom Conerly contributed proper freeing of memory allocated in + HeapProfileTable::FillOrderedProfile on error paths. + +* user fdeweerdt has contributed curl arguments handling fix in pprof + +* Frederik Mellbin fixed tcmalloc's idea of mangled new and delete + symbols on windows x64 + +* Dair Grant has contributed cacheline alignment for ThreadCache + objects + +* Fredrik Mellbin has contributed updated windows/config.h for Visual + Studio 2015 and other windows fixes. + +* we're not linking libpthread to libtcmalloc_minimal anymore. Instead + libtcmalloc_minimal links to pthread symbols weakly. As a result + single-threaded programs remain single-threaded when linking to or + preloading libtcmalloc_minimal.so. + +* Boris Sazonov has contributed mips compilation fix and printf misue + in pprof. + +* Adhemerval Zanella has contributed alignment fixes for statically + allocated variables. + +* Jens Rosenboom has contributed fixes for heap-profiler_unittest.sh + +* gshirishfree has contributed better description for GetStats method. + +* cyshi has contributed spinlock pause fix. + +* Chris Mayo has contributed --docdir argument support for configure. + +* Duncan Sands has contributed fix for function aliases. + +* Simon Que contributed better include for malloc_hook_c.h + +* user wmamrak contributed struct timespec fix for Visual Studio 2015. + +* user ssubotin contributed typo in PrintAvailability code. + + +== 10 Jan 2015 == + +gperftools 2.4 is out! The code is exactly same as 2.4rc. + +== 28 Dec 2014 == + +gperftools 2.4rc is out! + +Here are changes since 2.3: + +* enabled aggressive decommit option by default. It was found to + significantly improve memory fragmentation with negligible impact on + performance. (Thanks to investigation work performed by Adhemerval + Zanella) + +* added ./configure flags for tcmalloc pagesize and tcmalloc + allocation alignment. Larger page sizes have been reported to + improve performance occasionally. (Patch by Raphael Moreira Zinsly) + +* sped-up hot-path of malloc/free. By about 5% on static library and + about 10% on shared library. Mainly due to more efficient checking + of malloc hooks. + +* improved stacktrace capturing in cpu profiler (due to issue found by + Arun Sharma). As part of that issue pprof's handling of cpu profiles + was also improved. + +== 7 Dec 2014 == + +gperftools 2.3 is out! + +Here are changes since 2.3rc: + +* (issue 658) correctly close socketpair fds on failure (patch by glider) + +* libunwind integration can be disabled at configure time (patch by + Raphael Moreira Zinsly) + +* libunwind integration is disabled by default for ppc64 (patch by + Raphael Moreira Zinsly) + +* libunwind integration is force-disabled for OSX. It was not used by + default anyways. Fixes compilation issue I saw. + +== 2 Nov 2014 == + +gperftools 2.3rc is out! + +Most small improvements in this release were made to pprof tool. + +New experimental Linux-only (for now) cpu profiling mode is a notable +big improvement. + +Here are notable changes since 2.2.1: + +* (issue-631) fixed debugallocation miscompilation on mmap-less + platforms (courtesy of user iamxujian) + +* (issue-630) reference to wrong PROFILE (vs. correct CPUPROFILE) + environment variable was fixed (courtesy of WenSheng He) + +* pprof now has option to display stack traces in output for heap + checker (courtesy of Michael Pasieka) + +* (issue-636) pprof web command now works on mingw + +* (issue-635) pprof now handles library paths that contain spaces + (courtesy of user mich...@sebesbefut.com) + +* (issue-637) pprof now has an option to not strip template arguments + (patch by jiakai) + +* (issue-644) possible out-of-bounds access in GetenvBeforeMain was + fixed (thanks to user abyss.7) + +* (issue-641) pprof now has an option --show_addresses (thanks to user + yurivict). New option prints instruction address in addition to + function name in stack traces + +* (issue-646) pprof now works around some issues of addr2line + reportedly when DWARF v4 format is used (patch by Adam McNeeney) + +* (issue-645) heap profiler exit message now includes remaining memory + allocated info (patch by user yurivict) + +* pprof code that finds location of /proc//maps in cpu profile + files is now fixed (patch by Ricardo M. Correia) + +* (issue-654) pprof now handles "split text segments" feature of + Chromium for Android. (patch by simonb) + +* (issue-655) potential deadlock on windows caused by early call to + getenv in malloc initialization code was fixed (bug reported and fix + proposed by user zndmitry) + +* incorrect detection of arm 6zk instruction set support + (-mcpu=arm1176jzf-s) was fixed. (Reported by pedronavf on old + issue-493) + +* new cpu profiling mode on Linux is now implemented. It sets up + separate profiling timers for separate threads. Which improves + accuracy of profiling on Linux a lot. It is off by default. And is + enabled if both librt.f is loaded and CPUPROFILE_PER_THREAD_TIMERS + environment variable is set. But note that all threads need to be + registered via ProfilerRegisterThread. + +== 21 Jun 2014 == + +gperftools 2.2.1 is out! + +Here's list of fixes: + +* issue-626 was closed. Which fixes initialization statically linked + tcmalloc. + +* issue 628 was closed. It adds missing header file into source + tarball. This fixes for compilation on PPC Linux. + +== 3 May 2014 == + +gperftools 2.2 is out! + +Here are notable changes since 2.2rc: + +* issue 620 (crash on windows when c runtime dll is reloaded) was + fixed + +== 19 Apr 2014 == + +gperftools 2.2rc is out! + +Here are notable changes since 2.1: + +* a number of fixes for a number compilers and platforms. Notably + Visual Studio 2013, recent mingw with c++ threads and some OSX + fixes. + +* we now have mips and mips64 support! (courtesy of Jovan Zelincevic, + Jean Lee, user xiaoyur347 and others) + +* we now have aarch64 (aka arm64) support! (contributed by Riku + Voipio) + +* there's now support for ppc64-le (by Raphael Moreira Zinsly and + Adhemerval Zanella) + +* there's now some support of uclibc (contributed by user xiaoyur347) + +* google/ headers will now give you deprecation warning. They are + deprecated since 2.0 + +* there's now new api: tc_malloc_skip_new_handler (ported from chromium + fork) + +* issue-557: added support for dumping heap profile via signal (by + Jean Lee) + +* issue-567: Petr Hosek contributed SysAllocator support for windows + +* Joonsoo Kim contributed several speedups for central freelist code + +* TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES environment variable now works + +* configure scripts are now using AM_MAINTAINER_MODE. It'll only + affect folks who modify source from .tar.gz and want automake to + automatically rebuild Makefile-s. See automake documentation for + that. + +* issue-586: detect main executable even if PIE is active (based on + patch by user themastermind1). Notably, it fixes profiler use with + ruby. + +* there is now support for switching backtrace capturing method at + runtime (via TCMALLOC_STACKTRACE_METHOD and + TCMALLOC_STACKTRACE_METHOD_VERBOSE environment variables) + +* there is new backtrace capturing method using -finstrument-functions + prologues contributed by user xiaoyur347 + +* few cases of crashes/deadlocks in profiler were addressed. See + (famous) issue-66, issue-547 and issue-579. + +* issue-464 (memory corruption in debugalloc's realloc after + memallign) is now fixed + +* tcmalloc is now able to release memory back to OS on windows + (issue-489). The code was ported from chromium fork (by a number of + authors). + +* Together with issue-489 we ported chromium's "aggressive decommit" + mode. In this mode (settable via malloc extension and via + environment variable TCMALLOC_AGGRESSIVE_DECOMMIT), free pages are + returned back to OS immediately. + +* MallocExtension::instance() is now faster (based on patch by + Adhemerval Zanella) + +* issue-610 (hangs on windows in multibyte locales) is now fixed + +The following people helped with ideas or patches (based on git log, +some contributions purely in bugtracker might be missing): Andrew +C. Morrow, yurivict, Wang YanQing, Thomas Klausner, +davide.italiano@10gen.com, Dai MIKURUBE, Joon-Sung Um, Jovan +Zelincevic, Jean Lee, Petr Hosek, Ben Avison, drussel, Joonsoo Kim, +Hannes Weisbach, xiaoyur347, Riku Voipio, Adhemerval Zanella, Raphael +Moreira Zinsly + +== 30 July 2013 == + +gperftools 2.1 is out! + +Just few fixes where merged after rc. Most notably: + +* Some fixes for debug allocation on POWER/Linux + +== 20 July 2013 == + +gperftools 2.1rc is out! + +As a result of more than a year of contributions we're ready for 2.1 +release. + +But before making that step I'd like to create RC and make sure people +have chance to test it. + +Here are notable changes since 2.0: + +* fixes for building on newer platforms. Notably, there's now initial + support for x32 ABI (--enable-minimal only at this time)) + +* new getNumericProperty stats for cache sizes + +* added HEAP_PROFILER_TIME_INTERVAL variable (see documentation) + +* added environment variable to control heap size (TCMALLOC_HEAP_LIMIT_MB) + +* added environment variable to disable release of memory back to OS + (TCMALLOC_DISABLE_MEMORY_RELEASE) + +* cpu profiler can now be switched on and off by sending it a signal + (specified in CPUPROFILESIGNAL) + +* (issue 491) fixed race-ful spinlock wake-ups + +* (issue 496) added some support for fork-ing of process that is using + tcmalloc + +* (issue 368) improved memory fragmentation when large chunks of + memory are allocated/freed + +== 03 February 2012 == + +I've just released gperftools 2.0 + +The `google-perftools` project has been renamed to `gperftools`. I +(csilvers) am stepping down as maintainer, to be replaced by +David Chappelle. Welcome to the team, David! David has been an +an active contributor to perftools in the past -- in fact, he's the +only person other than me that already has commit status. I am +pleased to have him take over as maintainer. + +I have both renamed the project (the Google Code site renamed a few +weeks ago), and bumped the major version number up to 2, to reflect +the new community ownership of the project. Almost all the +[http://gperftools.googlecode.com/svn/tags/gperftools-2.0/ChangeLog changes] +are related to the renaming. + +The main functional change from google-perftools 1.10 is that +I've renamed the `google/` include-directory to be `gperftools/` +instead. New code should `#include `/etc. +(Most users of perftools don't need any perftools-specific includes at +all, so this is mostly directed to "power users.") I've kept the old +names around as forwarding headers to the new, so `#include +` will continue to work. + +(The other functional change which I snuck in is getting rid of some +bash-isms in one of the unittest driver scripts, so it could run on +Solaris.) + +Note that some internal names still contain the text `google`, such as +the `google_malloc` internal linker section. I think that's a +trickier transition, and can happen in a future release (if at all). + + +=== 31 January 2012 === + +I've just released perftools 1.10 + +There is an API-incompatible change: several of the methods in the +`MallocExtension` class have changed from taking a `void*` to taking a +`const void*`. You should not be affected by this API change +unless you've written your own custom malloc extension that derives +from `MallocExtension`, but since it is a user-visible change, I have +upped the `.so` version number for this release. + +This release focuses on improvements to linux-syscall-support.h, +including ARM and PPC fixups and general cleanups. I hope this will +magically fix an array of bugs people have been seeing. + +There is also exciting news on the porting front, with support for +patching win64 assembly contributed by IBM Canada! This is an +important step -- perhaps the most difficult -- to getting perftools +to work on 64-bit windows using the patching technique (it doesn't +affect the libc-modification technique). `premable_patcher_test` has +been added to help test these changes; it is meant to compile under +x86_64, and won't work under win32. + +For the full list of changes, including improved `HEAP_PROFILE_MMAP` +support, see the +[http://gperftools.googlecode.com/svn/tags/google-perftools-1.10/ChangeLog ChangeLog]. + + +=== 24 January 2011 === + +The `google-perftools` Google Code page has been renamed to +`gperftools`, in preparation for the project being renamed to +`gperftools`. In the coming weeks, I'll be stepping down as +maintainer for the perftools project, and as part of that Google is +relinquishing ownership of the project; it will now be entirely +community run. The name change reflects that shift. The 'g' in +'gperftools' stands for 'great'. :-) + +=== 23 December 2011 === + +I've just released perftools 1.9.1 + +I missed including a file in the tarball, that is needed to compile on +ARM. If you are not compiling on ARM, or have successfully compiled +perftools 1.9, there is no need to upgrade. + + +=== 22 December 2011 === + +I've just released perftools 1.9 + +This change has a slew of improvements, from better ARM and freebsd +support, to improved performance by moving some code outside of locks, +to better pprof reporting of code with overloaded functions. + +The full list of changes is in the +[http://google-perftools.googlecode.com/svn/tags/google-perftools-1.9/ChangeLog ChangeLog]. + + +=== 26 August 2011 === + +I've just released perftools 1.8.3 + +The star-crossed 1.8 series continues; in 1.8.1, I had accidentally +removed some code that was needed for FreeBSD. (Without this code +many apps would crash at startup.) This release re-adds that code. +If you are not on FreeBSD, or are using FreeBSD with perftools 1.8 or +earlier, there is no need to upgrade. + +=== 11 August 2011 === + +I've just released perftools 1.8.2 + +I was incorrectly calculating the patch-level in the configuration +step, meaning the TC_VERSION_PATCH #define in tcmalloc.h was wrong. +Since the testing framework checks for this, it was failing. Now it +should work again. This time, I was careful to re-run my tests after +upping the version number. :-) + +If you don't care about the TC_VERSION_PATCH #define, there's no +reason to upgrae. + +=== 26 July 2011 === + +I've just released perftools 1.8.1 + +I was missing an #include that caused the build to break under some +compilers, especially newer gcc's, that wanted it. This only affects +people who build from source, so only the .tar.gz file is updated from +perftools 1.8. If you didn't have any problems compiling perftools +1.8, there's no reason to upgrade. + +=== 15 July 2011 === + +I've just released perftools 1.8 + +Of the many changes in this release, a good number pertain to porting. +I've revamped OS X support to use the malloc-zone framework; it should +now Just Work to link in tcmalloc, without needing +`DYLD_FORCE_FLAT_NAMESPACE` or the like. (This is a pretty major +change, so please feel free to report feedback at +google-perftools@googlegroups.com.) 64-bit Windows support is also +improved, as is ARM support, and the hooks are in place to improve +FreeBSD support as well. + +On the other hand, I'm seeing hanging tests on Cygwin. I see the same +hanging even with (the old) perftools 1.7, so I'm guessing this is +either a problem specific to my Cygwin installation, or nobody is +trying to use perftools under Cygwin. If you can reproduce the +problem, and even better have a solution, you can report it at +google-perftools@googlegroups.com. + +Internal changes include several performance and space-saving tweaks. +One is user-visible (but in "stealth mode", and otherwise +undocumented): you can compile with `-DTCMALLOC_SMALL_BUT_SLOW`. In +this mode, tcmalloc will use less memory overhead, at the cost of +running (likely not noticeably) slower. + +There are many other changes as well, too numerous to recount here, +but present in the +[http://google-perftools.googlecode.com/svn/tags/google-perftools-1.8/ChangeLog ChangeLog]. + + +=== 7 February 2011 === + +Thanks to endlessr..., who +[http://code.google.com/p/google-perftools/issues/detail?id=307 identified] +why some tests were failing under MSVC 10 in release mode. It does not look +like these failures point toward any problem with tcmalloc itself; rather, the +problem is with the test, which made some assumptions that broke under the +some aggressive optimizations used in MSVC 10. I'll fix the test, but in +the meantime, feel free to use perftools even when compiled under MSVC +10. + +=== 4 February 2011 === + +I've just released perftools 1.7 + +I apologize for the delay since the last release; so many great new +patches and bugfixes kept coming in (and are still coming in; I also +apologize to those folks who have to slip until the next release). I +picked this arbitrary time to make a cut. + +Among the many new features in this release is a multi-megabyte +reduction in the amount of tcmalloc overhead uder x86_64, improved +performance in the case of contention, and many many bugfixes, +especially architecture-specific bugfixes. See the +[http://google-perftools.googlecode.com/svn/tags/google-perftools-1.7/ChangeLog ChangeLog] +for full details. + +One architecture-specific change of note is added comments in the +[http://google-perftools.googlecode.com/svn/tags/perftools-1.7/README README] +for using tcmalloc under OS X. I'm trying to get my head around the +exact behavior of the OS X linker, and hope to have more improvements +for the next release, but I hope these notes help folks who have been +having trouble with tcmalloc on OS X. + +*Windows users*: I've heard reports that some unittests fail on +Windows when compiled with MSVC 10 in Release mode. All tests pass in +Debug mode. I've not heard of any problems with earlier versions of +MSVC. I don't know if this is a problem with the runtime patching (so +the static patching discussed in README_windows.txt will still work), +a problem with perftools more generally, or a bug in MSVC 10. Anyone +with windows expertise that can debug this, I'd be glad to hear from! + + +=== 5 August 2010 === + +I've just released perftools 1.6 + +This version also has a large number of minor changes, including +support for `malloc_usable_size()` as a glibc-compatible alias to +`malloc_size()`, the addition of SVG-based output to `pprof`, and +experimental support for tcmalloc large pages, which may speed up +tcmalloc at the cost of greater memory use. To use tcmalloc large +pages, see the +[http://google-perftools.googlecode.com/svn/tags/perftools-1.6/INSTALL +INSTALL file]; for all changes, see the +[http://google-perftools.googlecode.com/svn/tags/perftools-1.6/ChangeLog +ChangeLog]. + +OS X NOTE: improvements in the profiler unittest have turned up an OS +X issue: in multithreaded programs, it seems that OS X often delivers +the profiling signal (from sigitimer()) to the main thread, even when +it's sleeping, rather than spawned threads that are doing actual work. +If anyone knows details of how OS X handles SIGPROF events (from +setitimer) in threaded programs, and has insight into this problem, +please send mail to google-perftools@googlegroups.com. + +To see if you're affected by this, look for profiling time that pprof +attributes to `___semwait_signal`. This is work being done in other +threads, that is being attributed to sleeping-time in the main thread. + + +=== 20 January 2010 === + +I've just released perftools 1.5 + +This version has a slew of changes, leading to somewhat faster +performance and improvements in portability. It adds features like +`ITIMER_REAL` support to the cpu profiler, and `tc_set_new_mode` to +mimic the windows function of the same name. Full details are in the +[http://google-perftools.googlecode.com/svn/tags/perftools-1.5/ChangeLog +ChangeLog]. + + +=== 11 September 2009 === + +I've just released perftools 1.4 + +The major change this release is the addition of a debugging malloc +library! If you link with `libtcmalloc_debug.so` instead of +`libtcmalloc.so` (and likewise for the `minimal` variants) you'll get +a debugging malloc, which will catch double-frees, writes to freed +data, `free`/`delete` and `delete`/`delete[]` mismatches, and even +(optionally) writes past the end of an allocated block. + +We plan to do more with this library in the future, including +supporting it on Windows, and adding the ability to use the debugging +library with your default malloc in addition to using it with +tcmalloc. + +There are also the usual complement of bug fixes, documented in the +ChangeLog, and a few minor user-tunable knobs added to components like +the system allocator. + + +=== 9 June 2009 === + +I've just released perftools 1.3 + +Like 1.2, this has a variety of bug fixes, especially related to the +Windows build. One of my bugfixes is to undo the weird `ld -r` fix to +`.a` files that I introduced in perftools 1.2: it caused problems on +too many platforms. I've reverted back to normal `.a` files. To work +around the original problem that prompted the `ld -r` fix, I now +provide `libtcmalloc_and_profiler.a`, for folks who want to link in +both. + +The most interesting API change is that I now not only override +`malloc`/`free`/etc, I also expose them via a unique set of symbols: +`tc_malloc`/`tc_free`/etc. This enables clients to write their own +memory wrappers that use tcmalloc: +{{{ + void* malloc(size_t size) { void* r = tc_malloc(size); Log(r); return r; } +}}} + + +=== 17 April 2009 === + +I've just released perftools 1.2. + +This is mostly a bugfix release. The major change is internal: I have +a new system for creating packages, which allows me to create 64-bit +packages. (I still don't do that for perftools, because there is +still no great 64-bit solution, with libunwind still giving problems +and --disable-frame-pointers not practical in every environment.) + +Another interesting change involves Windows: a +[http://code.google.com/p/google-perftools/issues/detail?id=126 new +patch] allows users to choose to override malloc/free/etc on Windows +rather than patching, as is done now. This can be used to create +custom CRTs. + +My fix for this +[http://groups.google.com/group/google-perftools/browse_thread/thread/1ff9b50043090d9d/a59210c4206f2060?lnk=gst&q=dynamic#a59210c4206f2060 +bug involving static linking] ended up being to make libtcmalloc.a and +libperftools.a a big .o file, rather than a true `ar` archive. This +should not yield any problems in practice -- in fact, it should be +better, since the heap profiler, leak checker, and cpu profiler will +now all work even with the static libraries -- but if you find it +does, please file a bug report. + +Finally, the profile_handler_unittest provided in the perftools +testsuite (new in this release) is failing on FreeBSD. The end-to-end +test that uses the profile-handler is passing, so I suspect the +problem may be with the test, not the perftools code itself. However, +I do not know enough about how itimers work on FreeBSD to be able to +debug it. If you can figure it out, please let me know! + +=== 11 March 2009 === + +I've just released perftools 1.1! + +It has many changes since perftools 1.0 including + + * Faster performance due to dynamically sized thread caches + * Better heap-sampling for more realistic profiles + * Improved support on Windows (MSVC 7.1 and cygwin) + * Better stacktraces in linux (using VDSO) + * Many bug fixes and feature requests + +Note: if you use the CPU-profiler with applications that fork without +doing an exec right afterwards, please see the README. Recent testing +has shown that profiles are unreliable in that case. The problem has +existed since the first release of perftools. We expect to have a fix +for perftools 1.2. For more details, see +[http://code.google.com/p/google-perftools/issues/detail?id=105 issue 105]. + +Everyone who uses perftools 1.0 is encouraged to upgrade to perftools +1.1. If you see any problems with the new release, please file a bug +report at http://code.google.com/p/google-perftools/issues/list. + +Enjoy! diff --git a/trunk/3rdparty/gperftools-2-fit/README b/trunk/3rdparty/gperftools-2-fit/README new file mode 100644 index 000000000..2e604dd7c --- /dev/null +++ b/trunk/3rdparty/gperftools-2-fit/README @@ -0,0 +1,279 @@ +gperftools +---------- +(originally Google Performance Tools) + +The fastest malloc we’ve seen; works particularly well with threads +and STL. Also: thread-friendly heap-checker, heap-profiler, and +cpu-profiler. + + +OVERVIEW +--------- + +gperftools is a collection of a high-performance multi-threaded +malloc() implementation, plus some pretty nifty performance analysis +tools. + +gperftools is distributed under the terms of the BSD License. Join our +mailing list at gperftools@googlegroups.com for updates: +https://groups.google.com/forum/#!forum/gperftools + +gperftools was original home for pprof program. But do note that +original pprof (which is still included with gperftools) is now +deprecated in favor of golang version at https://github.com/google/pprof + + +TCMALLOC +-------- +Just link in -ltcmalloc or -ltcmalloc_minimal to get the advantages of +tcmalloc -- a replacement for malloc and new. See below for some +environment variables you can use with tcmalloc, as well. + +tcmalloc functionality is available on all systems we've tested; see +INSTALL for more details. See README_windows.txt for instructions on +using tcmalloc on Windows. + +when compiling. gcc makes some optimizations assuming it is using its +own, built-in malloc; that assumption obviously isn't true with +tcmalloc. In practice, we haven't seen any problems with this, but +the expected risk is highest for users who register their own malloc +hooks with tcmalloc (using gperftools/malloc_hook.h). The risk is +lowest for folks who use tcmalloc_minimal (or, of course, who pass in +the above flags :-) ). + + +HEAP PROFILER +------------- +See docs/heapprofile.html for information about how to use tcmalloc's +heap profiler and analyze its output. + +As a quick-start, do the following after installing this package: + +1) Link your executable with -ltcmalloc +2) Run your executable with the HEAPPROFILE environment var set: + $ HEAPPROFILE=/tmp/heapprof [binary args] +3) Run pprof to analyze the heap usage + $ pprof /tmp/heapprof.0045.heap # run 'ls' to see options + $ pprof --gv /tmp/heapprof.0045.heap + +You can also use LD_PRELOAD to heap-profile an executable that you +didn't compile. + +There are other environment variables, besides HEAPPROFILE, you can +set to adjust the heap-profiler behavior; c.f. "ENVIRONMENT VARIABLES" +below. + +The heap profiler is available on all unix-based systems we've tested; +see INSTALL for more details. It is not currently available on Windows. + + +HEAP CHECKER +------------ +See docs/heap_checker.html for information about how to use tcmalloc's +heap checker. + +In order to catch all heap leaks, tcmalloc must be linked *last* into +your executable. The heap checker may mischaracterize some memory +accesses in libraries listed after it on the link line. For instance, +it may report these libraries as leaking memory when they're not. +(See the source code for more details.) + +Here's a quick-start for how to use: + +As a quick-start, do the following after installing this package: + +1) Link your executable with -ltcmalloc +2) Run your executable with the HEAPCHECK environment var set: + $ HEAPCHECK=1 [binary args] + +Other values for HEAPCHECK: normal (equivalent to "1"), strict, draconian + +You can also use LD_PRELOAD to heap-check an executable that you +didn't compile. + +The heap checker is only available on Linux at this time; see INSTALL +for more details. + + +CPU PROFILER +------------ +See docs/cpuprofile.html for information about how to use the CPU +profiler and analyze its output. + +As a quick-start, do the following after installing this package: + +1) Link your executable with -lprofiler +2) Run your executable with the CPUPROFILE environment var set: + $ CPUPROFILE=/tmp/prof.out [binary args] +3) Run pprof to analyze the CPU usage + $ pprof /tmp/prof.out # -pg-like text output + $ pprof --gv /tmp/prof.out # really cool graphical output + +There are other environment variables, besides CPUPROFILE, you can set +to adjust the cpu-profiler behavior; cf "ENVIRONMENT VARIABLES" below. + +The CPU profiler is available on all unix-based systems we've tested; +see INSTALL for more details. It is not currently available on Windows. + +NOTE: CPU profiling doesn't work after fork (unless you immediately + do an exec()-like call afterwards). Furthermore, if you do + fork, and the child calls exit(), it may corrupt the profile + data. You can use _exit() to work around this. We hope to have + a fix for both problems in the next release of perftools + (hopefully perftools 1.2). + + +EVERYTHING IN ONE +----------------- +If you want the CPU profiler, heap profiler, and heap leak-checker to +all be available for your application, you can do: + gcc -o myapp ... -lprofiler -ltcmalloc + +However, if you have a reason to use the static versions of the +library, this two-library linking won't work: + gcc -o myapp ... /usr/lib/libprofiler.a /usr/lib/libtcmalloc.a # errors! + +Instead, use the special libtcmalloc_and_profiler library, which we +make for just this purpose: + gcc -o myapp ... /usr/lib/libtcmalloc_and_profiler.a + + +CONFIGURATION OPTIONS +--------------------- +For advanced users, there are several flags you can pass to +'./configure' that tweak tcmalloc performance. (These are in addition +to the environment variables you can set at runtime to affect +tcmalloc, described below.) See the INSTALL file for details. + + +ENVIRONMENT VARIABLES +--------------------- +The cpu profiler, heap checker, and heap profiler will lie dormant, +using no memory or CPU, until you turn them on. (Thus, there's no +harm in linking -lprofiler into every application, and also -ltcmalloc +assuming you're ok using the non-libc malloc library.) + +The easiest way to turn them on is by setting the appropriate +environment variables. We have several variables that let you +enable/disable features as well as tweak parameters. + +Here are some of the most important variables: + +HEAPPROFILE=
 -- turns on heap profiling and dumps data using this prefix
+HEAPCHECK=  -- turns on heap checking with strictness 'type'
+CPUPROFILE= -- turns on cpu profiling and dumps data to this file.
+PROFILESELECTED=1 -- if set, cpu-profiler will only profile regions of code
+                     surrounded with ProfilerEnable()/ProfilerDisable().
+CPUPROFILE_FREQUENCY=x-- how many interrupts/second the cpu-profiler samples.
+
+PERFTOOLS_VERBOSE= -- the higher level, the more messages malloc emits
+MALLOCSTATS=    -- prints memory-use stats at program-exit
+
+For a full list of variables, see the documentation pages:
+   docs/cpuprofile.html
+   docs/heapprofile.html
+   docs/heap_checker.html
+
+
+COMPILING ON NON-LINUX SYSTEMS
+------------------------------
+
+Perftools was developed and tested on x86 Linux systems, and it works
+in its full generality only on those systems.  However, we've
+successfully ported much of the tcmalloc library to FreeBSD, Solaris
+x86, and Darwin (Mac OS X) x86 and ppc; and we've ported the basic
+functionality in tcmalloc_minimal to Windows.  See INSTALL for details.
+See README_windows.txt for details on the Windows port.
+
+
+PERFORMANCE
+-----------
+
+If you're interested in some third-party comparisons of tcmalloc to
+other malloc libraries, here are a few web pages that have been
+brought to our attention.  The first discusses the effect of using
+various malloc libraries on OpenLDAP.  The second compares tcmalloc to
+win32's malloc.
+  http://www.highlandsun.com/hyc/malloc/
+  http://gaiacrtn.free.fr/articles/win32perftools.html
+
+It's possible to build tcmalloc in a way that trades off faster
+performance (particularly for deletes) at the cost of more memory
+fragmentation (that is, more unusable memory on your system).  See the
+INSTALL file for details.
+
+
+OLD SYSTEM ISSUES
+-----------------
+
+When compiling perftools on some old systems, like RedHat 8, you may
+get an error like this:
+    ___tls_get_addr: symbol not found
+
+This means that you have a system where some parts are updated enough
+to support Thread Local Storage, but others are not.  The perftools
+configure script can't always detect this kind of case, leading to
+that error.  To fix it, just comment out (or delete) the line
+   #define HAVE_TLS 1
+in your config.h file before building.
+
+
+64-BIT ISSUES
+-------------
+
+There are two issues that can cause program hangs or crashes on x86_64
+64-bit systems, which use the libunwind library to get stack-traces.
+Neither issue should affect the core tcmalloc library; they both
+affect the perftools tools such as cpu-profiler, heap-checker, and
+heap-profiler.
+
+1) Some libc's -- at least glibc 2.4 on x86_64 -- have a bug where the
+libc function dl_iterate_phdr() acquires its locks in the wrong
+order.  This bug should not affect tcmalloc, but may cause occasional
+deadlock with the cpu-profiler, heap-profiler, and heap-checker.
+Its likeliness increases the more dlopen() commands an executable has.
+Most executables don't have any, though several library routines like
+getgrgid() call dlopen() behind the scenes.
+
+2) On x86-64 64-bit systems, while tcmalloc itself works fine, the
+cpu-profiler tool is unreliable: it will sometimes work, but sometimes
+cause a segfault.  I'll explain the problem first, and then some
+workarounds.
+
+Note that this only affects the cpu-profiler, which is a
+gperftools feature you must turn on manually by setting the
+CPUPROFILE environment variable.  If you do not turn on cpu-profiling,
+you shouldn't see any crashes due to perftools.
+
+The gory details: The underlying problem is in the backtrace()
+function, which is a built-in function in libc.
+Backtracing is fairly straightforward in the normal case, but can run
+into problems when having to backtrace across a signal frame.
+Unfortunately, the cpu-profiler uses signals in order to register a
+profiling event, so every backtrace that the profiler does crosses a
+signal frame.
+
+In our experience, the only time there is trouble is when the signal
+fires in the middle of pthread_mutex_lock.  pthread_mutex_lock is
+called quite a bit from system libraries, particularly at program
+startup and when creating a new thread.
+
+The solution: The dwarf debugging format has support for 'cfi
+annotations', which make it easy to recognize a signal frame.  Some OS
+distributions, such as Fedora and gentoo 2007.0, already have added
+cfi annotations to their libc.  A future version of libunwind should
+recognize these annotations; these systems should not see any
+crashes.
+
+Workarounds: If you see problems with crashes when running the
+cpu-profiler, consider inserting ProfilerStart()/ProfilerStop() into
+your code, rather than setting CPUPROFILE.  This will profile only
+those sections of the codebase.  Though we haven't done much testing,
+in theory this should reduce the chance of crashes by limiting the
+signal generation to only a small part of the codebase.  Ideally, you
+would not use ProfilerStart()/ProfilerStop() around code that spawns
+new threads, or is otherwise likely to cause a call to
+pthread_mutex_lock!
+
+---
+17 May 2011
diff --git a/trunk/3rdparty/gperftools-2-fit/README_windows.txt b/trunk/3rdparty/gperftools-2-fit/README_windows.txt
new file mode 100644
index 000000000..7bba12201
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/README_windows.txt
@@ -0,0 +1,120 @@
+--- COMPILING
+
+This project has begun being ported to Windows, only tcmalloc_minimal
+is supported at this time.  A working solution file exists in this
+directory:
+    gperftools.sln
+
+You can load this solution file into VC++ 7.1 (Visual Studio 2003) or
+later -- in the latter case, it will automatically convert the files
+to the latest format for you.
+
+When you build the solution, it will create a number of unittests,
+which you can run by hand (or, more easily, under the Visual Studio
+debugger) to make sure everything is working properly on your system.
+The binaries will end up in a directory called "debug" or "release" in
+the top-level directory (next to the .sln file).  It will also create
+two binaries, nm-pdb and addr2line-pdb, which you should install in
+the same directory you install the 'pprof' perl script.
+
+I don't know very much about how to install DLLs on Windows, so you'll
+have to figure out that part for yourself.  If you choose to just
+re-use the existing .sln, make sure you set the IncludeDir's
+appropriately!  Look at the properties for libtcmalloc_minimal.dll.
+
+Note that these systems are set to build in Debug mode by default.
+You may want to change them to Release mode.
+
+To use tcmalloc_minimal in your own projects, you should only need to
+build the dll and install it someplace, so you can link it into
+further binaries.  To use the dll, you need to add the following to
+the linker line of your executable:
+   "libtcmalloc_minimal.lib" /INCLUDE:"__tcmalloc" 
+
+Here is how to accomplish this in Visual Studio 2005 (VC8):
+
+1) Have your executable depend on the tcmalloc library by selecting
+   "Project Dependencies..." from the "Project" menu.  Your executable
+   should depend on "libtcmalloc_minimal".
+
+2) Have your executable depend on a tcmalloc symbol -- this is
+   necessary so the linker doesn't "optimize out" the libtcmalloc
+   dependency -- by right-clicking on your executable's project (in
+   the solution explorer), selecting Properties from the pull-down
+   menu, then selecting "Configuration Properties" -> "Linker" ->
+   "Input".  Then, in the "Force Symbol References" field, enter the
+   text "__tcmalloc" (without the quotes).  Be sure to do this for both
+   debug and release modes!
+
+You can also link tcmalloc code in statically -- see the example
+project tcmalloc_minimal_unittest-static, which does this.  For this
+to work, you'll need to add "/D PERFTOOLS_DLL_DECL=" to the compile
+line of every perftools .cc file.  You do not need to depend on the
+tcmalloc symbol in this case (that is, you don't need to do either
+step 1 or step 2 from above).
+
+An alternative to all the above is to statically link your application
+with libc, and then replace its malloc with tcmalloc.  This allows you
+to just build and link your program normally; the tcmalloc support
+comes in a post-processing step.  This is more reliable than the above
+technique (which depends on run-time patching, which is inherently
+fragile), though more work to set up.  For details, see
+   https://groups.google.com/group/google-perftools/browse_thread/thread/41cd3710af85e57b
+
+
+--- THE HEAP-PROFILER
+
+The heap-profiler has had a preliminary port to Windows but does not
+build on Windows by default.  It has not been well tested, and
+probably does not work at all when Frame Pointer Optimization (FPO) is
+enabled -- that is, in release mode.  The other features of perftools,
+such as the cpu-profiler and leak-checker, have not yet been ported to
+Windows at all.
+
+
+--- WIN64
+
+The function-patcher has to disassemble code, and is very
+x86-specific.  However, the rest of perftools should work fine for
+both x86 and x64.  In particular, if you use the 'statically link with
+libc, and replace its malloc with tcmalloc' approach, mentioned above,
+it should be possible to use tcmalloc with 64-bit windows.
+
+As of perftools 1.10, there is some support for disassembling x86_64
+instructions, for work with win64.  This work is preliminary, but the
+test file preamble_patcher_test.cc is provided to play around with
+that a bit.  preamble_patcher_test will not compile on win32.
+
+
+--- ISSUES
+
+NOTE FOR WIN2K USERS: According to reports
+(http://code.google.com/p/gperftools/issues/detail?id=127)
+the stack-tracing necessary for the heap-profiler does not work on
+Win2K.  The best workaround is, if you are building on a Win2k system
+is to add "/D NO_TCMALLOC_SAMPLES=" to your build, to turn off the
+stack-tracing.  You will not be able to use the heap-profiler if you
+do this.
+
+NOTE ON _MSIZE and _RECALLOC: The tcmalloc version of _msize returns
+the size of the region tcmalloc allocated for you -- which is at least
+as many bytes you asked for, but may be more.  (btw, these *are* bytes
+you own, even if you didn't ask for all of them, so it's correct code
+to access all of them if you want.)  Unfortunately, the Windows CRT
+_recalloc() routine assumes that _msize returns exactly as many bytes
+as were requested.  As a result, _recalloc() may not zero out new
+bytes correctly.  IT'S SAFEST NOT TO USE _RECALLOC WITH TCMALLOC.
+_recalloc() is a tricky routine to use in any case (it's not safe to
+use with realloc, for instance).
+
+
+I have little experience with Windows programming, so there may be
+better ways to set this up than I've done!  If you run across any
+problems, please post to the google-perftools Google Group, or report
+them on the gperftools Google Code site:
+   http://groups.google.com/group/google-perftools
+   http://code.google.com/p/gperftools/issues/list
+
+-- craig
+
+Last modified: 2 February 2012
diff --git a/trunk/3rdparty/gperftools-2-fit/TODO b/trunk/3rdparty/gperftools-2-fit/TODO
new file mode 100644
index 000000000..550f7e09b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/TODO
@@ -0,0 +1,47 @@
+HEAP PROFILER
+
+1) Fix heap profiling under all STLs
+   * Find out how to force non-glibc STL libraries to call new() and
+     delete() for every allocation / deallocation.
+   * Make heap profiler ignore STL-internal allocations for those
+     libraries under which we cannot profile accurately, so we only
+     see object-level leaks.
+2) Remove dependency on tcmalloc?
+3) Port to non-linux O/Ses (right now code uses /proc for library info)
+4) Port to non-x86 architectures (locking code in spinlock is x86-specific)
+5) Port to C?
+6) Figure out how to get setenv() to work properly before main() in
+   shared libaries, and get rid of the profile-naming hack once we
+   do.  (See HeapProfiler::Init().)
+
+
+HEAP CHECKER
+
+1) Remove requirement that the heap-checker must be linked last into
+   an application (hard! -- it needs its global constructor to run
+   first)
+
+TCMALLOC
+
+1) Implement mallinfo/mallopt
+2) Have tcmalloc work correctly when libpthread is not linked in
+   (currently working for glibc, could use other libc's too)
+3) Return memory to the system when requirements drop
+4) Explore coloring allocated objects to avoid cache conflicts
+5) Explore biasing reclamation to larger addresses
+6) Add contention stats to a synchronization.cc (can do spinlocks,
+   but threads? -- may have to provide our own thread implementation)
+
+CPU PROFILER
+
+1) Figure out how to get setenv() to work properly before main() in
+   shared libaries(), and get rid of the profile-naming hack once we
+   do.  (See Profiler::GetUniquePathFromEnv().)
+2) Resolve crashing problems on x86_64 (see README)
+
+STACKTRACE
+
+1) Remove dependency on linux/x86
+
+---
+11 March 2008
diff --git a/trunk/3rdparty/gperftools-2-fit/aclocal.m4 b/trunk/3rdparty/gperftools-2-fit/aclocal.m4
new file mode 100644
index 000000000..fe9a3c629
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/aclocal.m4
@@ -0,0 +1,1181 @@
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+  # TODO: see whether this extra hack can be removed once we start
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+        | $MAKE -f - am--depfiles]) || am_rc=$?
+  done
+  if test $am_rc -ne 0; then
+    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  If GNU make was not used, consider
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+  AS_UNSET([am_dirpart])
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+}
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+
+
+# AM_OUTPUT_DEPENDENCY_COMMANDS
+# -----------------------------
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+     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
+     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
+
+# Do all the work for Automake.                             -*- Autoconf -*-
+
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This macro actually does too much.  Some checks are only needed if
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+[_AM_PROG_CC_C_O
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+
+# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
+# AM_INIT_AUTOMAKE([OPTIONS])
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+# We support both call styles for the transition.  After
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+AC_DEFUN([AM_INIT_AUTOMAKE],
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+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
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+ AC_SUBST([VERSION], [$2])],
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+ AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
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+_AM_IF_OPTION([no-define],,
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+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
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+AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
+AM_MISSING_PROG([AUTOHEADER], [autoheader])
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+AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
+AC_REQUIRE([AC_PROG_MKDIR_P])dnl
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+# 
+# 
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+# We need awk for the "check" target (and possibly the TAP driver).  The
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+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_SET_LEADING_DOT])dnl
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+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
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+the upcoming POSIX standard: 
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+Please tell bug-automake@gnu.org about your system, including the value
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+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
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+You can download and install GNU coreutils to get an 'rm' implementation
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+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
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+END
+    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
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+dnl The trailing newline in this macro's definition is deliberate, for
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+dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
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+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
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+# AM_PROG_INSTALL_SH
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+# Copyright (C) 2003-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
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+
+# Check whether the underlying file-system supports filenames
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+rmdir .tst 2>/dev/null
+AC_SUBST([am__leading_dot])])
+
+# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
+# From Jim Meyering
+
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MAINTAINER_MODE([DEFAULT-MODE])
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+AC_DEFUN([AM_MAINTAINER_MODE],
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+    [USE_MAINTAINER_MODE=$enableval],
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+  AC_SUBST([MAINT])dnl
+]
+)
+
+# Check to see how 'make' treats includes.	            -*- Autoconf -*-
+
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
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+# AM_MAKE_INCLUDE()
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+AC_DEFUN([AM_MAKE_INCLUDE],
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+for s in GNU BSD; do
+  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
+  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
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+      [AS_CASE([$s],
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+rm -f confinc.* confmf.*
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+# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
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+# Copyright (C) 1997-2020 Free Software Foundation, Inc.
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+# Helper functions for option handling.                     -*- Autoconf -*-
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+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
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+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment])
+     fi
+     if test "$[2]" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$[2]" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT([yes])
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+AC_CONFIG_COMMANDS_PRE(
+  [AC_MSG_CHECKING([that generated files are newer than configure])
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   AC_MSG_RESULT([done])])
+rm -f conftest.file
+])
+
+# Copyright (C) 2009-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SILENT_RULES([DEFAULT])
+# --------------------------
+# Enable less verbose build rules; with the default set to DEFAULT
+# ("yes" being less verbose, "no" or empty being verbose).
+AC_DEFUN([AM_SILENT_RULES],
+[AC_ARG_ENABLE([silent-rules], [dnl
+AS_HELP_STRING(
+  [--enable-silent-rules],
+  [less verbose build output (undo: "make V=1")])
+AS_HELP_STRING(
+  [--disable-silent-rules],
+  [verbose build output (undo: "make V=0")])dnl
+])
+case $enable_silent_rules in @%:@ (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
+esac
+dnl
+dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
+dnl do not support nested variable expansions.
+dnl See automake bug#9928 and bug#10237.
+am_make=${MAKE-make}
+AC_CACHE_CHECK([whether $am_make supports nested variables],
+   [am_cv_make_support_nested_variables],
+   [if AS_ECHO([['TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi])
+if test $am_cv_make_support_nested_variables = yes; then
+  dnl Using '$V' instead of '$(V)' breaks IRIX make.
+  AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AC_SUBST([AM_V])dnl
+AM_SUBST_NOTMAKE([AM_V])dnl
+AC_SUBST([AM_DEFAULT_V])dnl
+AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
+AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
+AM_BACKSLASH='\'
+AC_SUBST([AM_BACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
+])
+
+# Copyright (C) 2001-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor 'install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in "make install-strip", and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
+if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# AM_SUBST_NOTMAKE(VARIABLE)
+# --------------------------
+# Public sister of _AM_SUBST_NOTMAKE.
+AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
+
+# Check how to create a tarball.                            -*- Autoconf -*-
+
+# Copyright (C) 2004-2020 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of 'v7', 'ustar', or 'pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+#     tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+#     $(am__untar) < result.tar
+#
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AC_SUBST([AMTAR], ['$${TAR-tar}'])
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+
+m4_if([$1], [v7],
+  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
+
+  [m4_case([$1],
+    [ustar],
+     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
+      # There is notably a 21 bits limit for the UID and the GID.  In fact,
+      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
+      # and bug#13588).
+      am_max_uid=2097151 # 2^21 - 1
+      am_max_gid=$am_max_uid
+      # The $UID and $GID variables are not portable, so we need to resort
+      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
+      # below are definitely unexpected, so allow the users to see them
+      # (that is, avoid stderr redirection).
+      am_uid=`id -u || echo unknown`
+      am_gid=`id -g || echo unknown`
+      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
+      if test $am_uid -le $am_max_uid; then
+         AC_MSG_RESULT([yes])
+      else
+         AC_MSG_RESULT([no])
+         _am_tools=none
+      fi
+      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
+      if test $am_gid -le $am_max_gid; then
+         AC_MSG_RESULT([yes])
+      else
+        AC_MSG_RESULT([no])
+        _am_tools=none
+      fi],
+
+  [pax],
+    [],
+
+  [m4_fatal([Unknown tar format])])
+
+  AC_MSG_CHECKING([how to create a $1 tar archive])
+
+  # Go ahead even if we have the value already cached.  We do so because we
+  # need to set the values for the 'am__tar' and 'am__untar' variables.
+  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
+
+  for _am_tool in $_am_tools; do
+    case $_am_tool in
+    gnutar)
+      for _am_tar in tar gnutar gtar; do
+        AM_RUN_LOG([$_am_tar --version]) && break
+      done
+      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+      am__untar="$_am_tar -xf -"
+      ;;
+    plaintar)
+      # Must skip GNU tar: if it does not support --format= it doesn't create
+      # ustar tarball either.
+      (tar --version) >/dev/null 2>&1 && continue
+      am__tar='tar chf - "$$tardir"'
+      am__tar_='tar chf - "$tardir"'
+      am__untar='tar xf -'
+      ;;
+    pax)
+      am__tar='pax -L -x $1 -w "$$tardir"'
+      am__tar_='pax -L -x $1 -w "$tardir"'
+      am__untar='pax -r'
+      ;;
+    cpio)
+      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+      am__untar='cpio -i -H $1 -d'
+      ;;
+    none)
+      am__tar=false
+      am__tar_=false
+      am__untar=false
+      ;;
+    esac
+
+    # If the value was cached, stop now.  We just wanted to have am__tar
+    # and am__untar set.
+    test -n "${am_cv_prog_tar_$1}" && break
+
+    # tar/untar a dummy directory, and stop if the command works.
+    rm -rf conftest.dir
+    mkdir conftest.dir
+    echo GrepMe > conftest.dir/file
+    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+    rm -rf conftest.dir
+    if test -s conftest.tar; then
+      AM_RUN_LOG([$am__untar /dev/null 2>&1 && break
+    fi
+  done
+  rm -rf conftest.dir
+
+  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
+m4_include([m4/ac_have_attribute.m4])
+m4_include([m4/acx_nanosleep.m4])
+m4_include([m4/acx_pthread.m4])
+m4_include([m4/ax_cxx_compile_stdcxx.m4])
+m4_include([m4/ax_generate_changelog.m4])
+m4_include([m4/install_prefix.m4])
+m4_include([m4/libtool.m4])
+m4_include([m4/ltoptions.m4])
+m4_include([m4/ltsugar.m4])
+m4_include([m4/ltversion.m4])
+m4_include([m4/lt~obsolete.m4])
+m4_include([m4/pc_from_ucontext.m4])
+m4_include([m4/program_invocation_name.m4])
diff --git a/trunk/3rdparty/gperftools-2-fit/benchmark/binary_trees.cc b/trunk/3rdparty/gperftools-2-fit/benchmark/binary_trees.cc
new file mode 100644
index 000000000..4c895b2e9
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/benchmark/binary_trees.cc
@@ -0,0 +1,108 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+//
+// Copied from
+// http://benchmarksgame.alioth.debian.org/u64q/program.php?test=binarytrees&lang=gpp&id=2
+// and slightly modified (particularly by adding multi-threaded
+// operation to hit malloc harder).
+//
+// This version of binary trees is mostly new/delete benchmark
+//
+// NOTE: copyright of this code is unclear, but we only distribute
+// source.
+
+/* The Computer Language Benchmarks Game
+ * http://benchmarksgame.alioth.debian.org/
+ *
+ * Contributed by Jon Harrop
+ * Modified by Alex Mizrahi
+ * Adapted for gperftools and added threads by Aliaksei Kandratsenka
+ */
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+struct Node {
+  Node *l, *r;
+  int i;
+  Node(int i2) : l(0), r(0), i(i2) {}
+  Node(Node *l2, int i2, Node *r2) : l(l2), r(r2), i(i2) {}
+  ~Node() { delete l; delete r; }
+  int check() const {
+    if (l) {
+      return l->check() + i - r->check();
+    } else {
+      return i;
+    }
+  }
+};
+
+Node *make(int i, int d) {
+  if (d == 0) return new Node(i);
+  return new Node(make(2*i-1, d-1), i, make(2*i, d-1));
+}
+
+void run(int given_depth) {
+  int min_depth = 4,
+    max_depth = std::max(min_depth+2,
+			 given_depth),
+    stretch_depth = max_depth+1;
+
+  {
+    Node *c = make(0, stretch_depth);
+    std::cout << "stretch tree of depth " << stretch_depth << "\t "
+      << "check: " << c->check() << std::endl;
+    delete c;
+  }
+
+  Node *long_lived_tree=make(0, max_depth);
+
+  for (int d=min_depth; d<=max_depth; d+=2) {
+    int iterations = 1 << (max_depth - d + min_depth), c=0;
+    for (int i=1; i<=iterations; ++i) {
+      Node *a = make(i, d), *b = make(-i, d);
+      c += a->check() + b->check();
+      delete a;
+      delete b;
+    }
+    std::cout << (2*iterations) << "\t trees of depth " << d << "\t "
+	      << "check: " << c << std::endl;
+  }
+
+  std::cout << "long lived tree of depth " << max_depth << "\t "
+	    << "check: " << (long_lived_tree->check()) << "\n";
+
+  delete long_lived_tree;
+}
+
+static void *run_tramp(void *_a) {
+  intptr_t a = reinterpret_cast(_a);
+  run(a);
+  return 0;
+}
+
+int main(int argc, char *argv[]) {
+  int given_depth = argc >= 2 ? atoi(argv[1]) : 20;
+  int thread_count = std::max(1, argc >= 3 ? atoi(argv[2]) : 1) - 1;
+  std::vector threads(thread_count);
+
+  for (int i = 0; i < thread_count; i++) {
+    int rv = pthread_create(&threads[i], NULL,
+                            run_tramp,
+                            reinterpret_cast(given_depth));
+    if (rv) {
+      errno = rv;
+      perror("pthread_create");
+    }
+  }
+  run_tramp(reinterpret_cast(given_depth));
+  for (int i = 0; i < thread_count; i++) {
+    pthread_join(threads[i], NULL);
+  }
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/benchmark/malloc_bench.cc b/trunk/3rdparty/gperftools-2-fit/benchmark/malloc_bench.cc
new file mode 100644
index 000000000..371b8c61a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/benchmark/malloc_bench.cc
@@ -0,0 +1,293 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include 
+#include 
+#include 
+
+#include 
+
+#include "run_benchmark.h"
+
+static void bench_fastpath_throughput(long iterations,
+                                      uintptr_t param)
+{
+  size_t sz = 32;
+  for (; iterations>0; iterations--) {
+    void *p = malloc(sz);
+    if (!p) {
+      abort();
+    }
+    free(p);
+    // this makes next iteration use different free list. So
+    // subsequent iterations may actually overlap in time.
+    sz = ((sz * 8191) & 511) + 16;
+  }
+}
+
+static void bench_fastpath_dependent(long iterations,
+                                     uintptr_t param)
+{
+  size_t sz = 32;
+  for (; iterations>0; iterations--) {
+    void *p = malloc(sz);
+    if (!p) {
+      abort();
+    }
+    free(p);
+    // this makes next iteration depend on current iteration. But this
+    // iteration's free may still overlap with next iteration's malloc
+    sz = ((sz | reinterpret_cast(p)) & 511) + 16;
+  }
+}
+
+static void bench_fastpath_simple(long iterations,
+                                  uintptr_t param)
+{
+  size_t sz = static_cast(param);
+  for (; iterations>0; iterations--) {
+    void *p = malloc(sz);
+    if (!p) {
+      abort();
+    }
+    free(p);
+    // next iteration will use same free list as this iteration. So it
+    // should be prevent next iterations malloc to go too far before
+    // free done. But using same size will make free "too fast" since
+    // we'll hit size class cache.
+  }
+}
+
+#ifdef __GNUC__
+#define HAVE_SIZED_FREE_OPTION
+
+extern "C" void tc_free_sized(void *ptr, size_t size) __attribute__((weak));
+extern "C" void *tc_memalign(size_t align, size_t size) __attribute__((weak));
+
+static bool is_sized_free_available(void)
+{
+  return tc_free_sized != NULL;
+}
+
+static bool is_memalign_available(void)
+{
+  return tc_memalign != NULL;
+}
+
+static void bench_fastpath_simple_sized(long iterations,
+                                        uintptr_t param)
+{
+  size_t sz = static_cast(param);
+  for (; iterations>0; iterations--) {
+    void *p = malloc(sz);
+    if (!p) {
+      abort();
+    }
+    tc_free_sized(p, sz);
+    // next iteration will use same free list as this iteration. So it
+    // should be prevent next iterations malloc to go too far before
+    // free done. But using same size will make free "too fast" since
+    // we'll hit size class cache.
+  }
+}
+
+static void bench_fastpath_memalign(long iterations,
+                                    uintptr_t param)
+{
+  size_t sz = static_cast(param);
+  for (; iterations>0; iterations--) {
+    void *p = tc_memalign(32, sz);
+    if (!p) {
+      abort();
+    }
+    free(p);
+    // next iteration will use same free list as this iteration. So it
+    // should be prevent next iterations malloc to go too far before
+    // free done. But using same size will make free "too fast" since
+    // we'll hit size class cache.
+  }
+}
+
+#endif // __GNUC__
+
+#define STACKSZ (1 << 16)
+
+static void bench_fastpath_stack(long iterations,
+                                 uintptr_t _param)
+{
+
+  void *stack[STACKSZ];
+  size_t sz = 64;
+  long param = static_cast(_param);
+  param &= STACKSZ - 1;
+  param = param ? param : 1;
+  for (; iterations>0; iterations -= param) {
+    for (long k = param-1; k >= 0; k--) {
+      void *p = malloc(sz);
+      if (!p) {
+        abort();
+      }
+      stack[k] = p;
+      // this makes next iteration depend on result of this iteration
+      sz = ((sz | reinterpret_cast(p)) & 511) + 16;
+    }
+    for (long k = 0; k < param; k++) {
+      free(stack[k]);
+    }
+  }
+}
+
+static void bench_fastpath_stack_simple(long iterations,
+                                        uintptr_t _param)
+{
+
+  void *stack[STACKSZ];
+  size_t sz = 128;
+  long param = static_cast(_param);
+  param &= STACKSZ - 1;
+  param = param ? param : 1;
+  for (; iterations>0; iterations -= param) {
+    for (long k = param-1; k >= 0; k--) {
+      void *p = malloc(sz);
+      if (!p) {
+        abort();
+      }
+      stack[k] = p;
+    }
+    for (long k = 0; k < param; k++) {
+      free(stack[k]);
+    }
+  }
+}
+
+static void bench_fastpath_rnd_dependent(long iterations,
+                                         uintptr_t _param)
+{
+  static const uintptr_t rnd_c = 1013904223;
+  static const uintptr_t rnd_a = 1664525;
+
+  void *ptrs[STACKSZ];
+  size_t sz = 128;
+  if ((_param & (_param - 1))) {
+    abort();
+  }
+  if (_param > STACKSZ) {
+    abort();
+  }
+  int param = static_cast(_param);
+
+  for (; iterations>0; iterations -= param) {
+    for (int k = param-1; k >= 0; k--) {
+      void *p = malloc(sz);
+      if (!p) {
+        abort();
+      }
+      ptrs[k] = p;
+      sz = ((sz | reinterpret_cast(p)) & 511) + 16;
+    }
+
+    // this will iterate through all objects in order that is
+    // unpredictable to processor's prefetchers
+    uint32_t rnd = 0;
+    uint32_t free_idx = 0;
+    do {
+      free(ptrs[free_idx]);
+      rnd = rnd * rnd_a + rnd_c;
+      free_idx = rnd & (param - 1);
+    } while (free_idx != 0);
+  }
+}
+
+static void *randomize_buffer[13<<20];
+
+
+void randomize_one_size_class(size_t size) {
+  int count = (100<<20) / size;
+  if (count * sizeof(randomize_buffer[0]) > sizeof(randomize_buffer)) {
+    abort();
+  }
+  for (int i = 0; i < count; i++) {
+    randomize_buffer[i] = malloc(size);
+  }
+  std::random_shuffle(randomize_buffer, randomize_buffer + count);
+  for (int i = 0; i < count; i++) {
+    free(randomize_buffer[i]);
+  }
+}
+
+void randomize_size_classes() {
+  randomize_one_size_class(8);
+  int i;
+  for (i = 16; i < 256; i += 16) {
+    randomize_one_size_class(i);
+  }
+  for (; i < 512; i += 32) {
+    randomize_one_size_class(i);
+  }
+  for (; i < 1024; i += 64) {
+    randomize_one_size_class(i);
+  }
+  for (; i < (4 << 10); i += 128) {
+    randomize_one_size_class(i);
+  }
+  for (; i < (32 << 10); i += 1024) {
+    randomize_one_size_class(i);
+  }
+}
+
+int main(void)
+{
+  randomize_size_classes();
+
+  report_benchmark("bench_fastpath_throughput", bench_fastpath_throughput, 0);
+  report_benchmark("bench_fastpath_dependent", bench_fastpath_dependent, 0);
+  report_benchmark("bench_fastpath_simple", bench_fastpath_simple, 64);
+  report_benchmark("bench_fastpath_simple", bench_fastpath_simple, 2048);
+  report_benchmark("bench_fastpath_simple", bench_fastpath_simple, 16384);
+
+#ifdef HAVE_SIZED_FREE_OPTION
+  if (is_sized_free_available()) {
+    report_benchmark("bench_fastpath_simple_sized", bench_fastpath_simple_sized, 64);
+    report_benchmark("bench_fastpath_simple_sized", bench_fastpath_simple_sized, 2048);
+  }
+
+  if (is_memalign_available()) {
+    report_benchmark("bench_fastpath_memalign", bench_fastpath_memalign, 64);
+    report_benchmark("bench_fastpath_memalign", bench_fastpath_memalign, 2048);
+  }
+
+#endif
+
+  for (int i = 8; i <= 512; i <<= 1) {
+    report_benchmark("bench_fastpath_stack", bench_fastpath_stack, i);
+  }
+  report_benchmark("bench_fastpath_stack_simple", bench_fastpath_stack_simple, 32);
+  report_benchmark("bench_fastpath_stack_simple", bench_fastpath_stack_simple, 8192);
+  report_benchmark("bench_fastpath_rnd_dependent", bench_fastpath_rnd_dependent, 32);
+  report_benchmark("bench_fastpath_rnd_dependent", bench_fastpath_rnd_dependent, 8192);
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/benchmark/run_benchmark.c b/trunk/3rdparty/gperftools-2-fit/benchmark/run_benchmark.c
new file mode 100644
index 000000000..9bf04f45a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/benchmark/run_benchmark.c
@@ -0,0 +1,112 @@
+// -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "run_benchmark.h"
+
+#include 
+#include 
+#include 
+#include 
+
+struct internal_bench {
+  bench_body body;
+  uintptr_t param;
+};
+
+static void run_body(struct internal_bench *b, long iterations)
+{
+  b->body(iterations, b->param);
+}
+
+static double measure_once(struct internal_bench *b, long iterations)
+{
+  struct timeval tv_before, tv_after;
+  int rv;
+  double time;
+
+  rv = gettimeofday(&tv_before, NULL);
+  if (rv) {
+    perror("gettimeofday");
+    abort();
+  }
+
+  run_body(b, iterations);
+
+  rv = gettimeofday(&tv_after, NULL);
+  if (rv) {
+    perror("gettimeofday");
+    abort();
+  }
+  tv_after.tv_sec -= tv_before.tv_sec;
+  time = tv_after.tv_sec * 1E6 + tv_after.tv_usec;
+  time -= tv_before.tv_usec;
+  time *= 1000;
+  return time;
+}
+
+#define TRIAL_NSEC 0.3E9
+#define TARGET_NSEC 3E9
+
+static double run_benchmark(struct internal_bench *b)
+{
+  long iterations = 128;
+  double nsec;
+  while (1) {
+    nsec = measure_once(b, iterations);
+    if (nsec > TRIAL_NSEC) {
+      break;
+    }
+    iterations <<= 1;
+  }
+  while (nsec < TARGET_NSEC) {
+    iterations = (long)(iterations * TARGET_NSEC * 1.1 / nsec);
+    nsec = measure_once(b, iterations);
+  }
+  return nsec / iterations;
+}
+
+void report_benchmark(const char *name, bench_body body, uintptr_t param)
+{
+  int i;
+  struct internal_bench b = {.body = body, .param = param};
+  for (i = 0; i < 3; i++) {
+    double nsec = run_benchmark(&b);
+    int slen;
+    int padding_size;
+
+    slen = printf("Benchmark: %s", name);
+    if (param && name[strlen(name)-1] != ')') {
+      slen += printf("(%lld)", (long long)param);
+    }
+    padding_size = 60 - slen;
+    if (padding_size < 1) {
+      padding_size = 1;
+    }
+    printf("%*c%f nsec\n", padding_size, ' ', nsec);
+    fflush(stdout);
+  }
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/benchmark/run_benchmark.h b/trunk/3rdparty/gperftools-2-fit/benchmark/run_benchmark.h
new file mode 100644
index 000000000..e030d1efd
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/benchmark/run_benchmark.h
@@ -0,0 +1,43 @@
+// -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#ifndef _RUN_BENCHMARK_H_
+#define _RUN_BENCHMARK_H_
+#include 
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void (*bench_body)(long iterations, uintptr_t param);
+
+void report_benchmark(const char *name, bench_body body, uintptr_t param);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // _RUN_BENCHMARK_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/compile b/trunk/3rdparty/gperftools-2-fit/compile
new file mode 100755
index 000000000..23fcba011
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/compile
@@ -0,0 +1,348 @@
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
+# Written by Tom Tromey .
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to  or send patches to
+# .
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" ""	$nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN* | MSYS*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv/,$2, in
+	*,$file_conv,*)
+	  ;;
+	mingw/*)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin/* | msys/*)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine/*)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+  func_file_conv "$1"
+  if test -z "$lib_path"; then
+    lib_path=$file
+  else
+    lib_path="$lib_path;$file"
+  fi
+  linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+  lib=$1
+  found=no
+  save_IFS=$IFS
+  IFS=';'
+  for dir in $lib_path $LIB
+  do
+    IFS=$save_IFS
+    if $shared && test -f "$dir/$lib.dll.lib"; then
+      found=yes
+      lib=$dir/$lib.dll.lib
+      break
+    fi
+    if test -f "$dir/$lib.lib"; then
+      found=yes
+      lib=$dir/$lib.lib
+      break
+    fi
+    if test -f "$dir/lib$lib.a"; then
+      found=yes
+      lib=$dir/lib$lib.a
+      break
+    fi
+  done
+  IFS=$save_IFS
+
+  if test "$found" != yes; then
+    lib=$lib.lib
+  fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+  # Assume a capable shell
+  lib_path=
+  shared=:
+  linker_opts=
+  for arg
+  do
+    if test -n "$eat"; then
+      eat=
+    else
+      case $1 in
+	-o)
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
+	  eat=1
+	  case $2 in
+	    *.o | *.[oO][bB][jJ])
+	      func_file_conv "$2"
+	      set x "$@" -Fo"$file"
+	      shift
+	      ;;
+	    *)
+	      func_file_conv "$2"
+	      set x "$@" -Fe"$file"
+	      shift
+	      ;;
+	  esac
+	  ;;
+	-I)
+	  eat=1
+	  func_file_conv "$2" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-I*)
+	  func_file_conv "${1#-I}" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-l)
+	  eat=1
+	  func_cl_dashl "$2"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-l*)
+	  func_cl_dashl "${1#-l}"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-L)
+	  eat=1
+	  func_cl_dashL "$2"
+	  ;;
+	-L*)
+	  func_cl_dashL "${1#-L}"
+	  ;;
+	-static)
+	  shared=false
+	  ;;
+	-Wl,*)
+	  arg=${1#-Wl,}
+	  save_ifs="$IFS"; IFS=','
+	  for flag in $arg; do
+	    IFS="$save_ifs"
+	    linker_opts="$linker_opts $flag"
+	  done
+	  IFS="$save_ifs"
+	  ;;
+	-Xlinker)
+	  eat=1
+	  linker_opts="$linker_opts $2"
+	  ;;
+	-*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+	  func_file_conv "$1"
+	  set x "$@" -Tp"$file"
+	  shift
+	  ;;
+	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+	  func_file_conv "$1" mingw
+	  set x "$@" "$file"
+	  shift
+	  ;;
+	*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+      esac
+    fi
+    shift
+  done
+  if test -n "$linker_opts"; then
+    linker_opts="-link$linker_opts"
+  fi
+  exec "$@" $linker_opts
+  exit 1
+}
+
+eat=
+
+case $1 in
+  '')
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to .
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "compile $scriptversion"
+    exit $?
+    ;;
+  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
+  icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
+    func_cl_wrapper "$@"      # Doesn't return...
+    ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+  if test -n "$eat"; then
+    eat=
+  else
+    case $1 in
+      -o)
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
+	eat=1
+	case $2 in
+	  *.o | *.obj)
+	    ofile=$2
+	    ;;
+	  *)
+	    set x "$@" -o "$2"
+	    shift
+	    ;;
+	esac
+	;;
+      *.c)
+	cfile=$1
+	set x "$@" "$1"
+	shift
+	;;
+      *)
+	set x "$@" "$1"
+	shift
+	;;
+    esac
+  fi
+  shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+  # If no '-o' option was seen then we might have been invoked from a
+  # pattern rule where we don't need one.  That is ok -- this is a
+  # normal compilation that the losing compiler can handle.  If no
+  # '.c' file was seen then we are probably linking.  That is also
+  # ok.
+  exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file.  Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+  if mkdir "$lockdir" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/trunk/3rdparty/gperftools-2-fit/config.guess b/trunk/3rdparty/gperftools-2-fit/config.guess
new file mode 100755
index 000000000..f50dcdb6d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/config.guess
@@ -0,0 +1,1480 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
+
+timestamp='2018-02-24'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see .
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
+#
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+#
+# Please send patches to .
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Options:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to ."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright 1992-2018 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > "$dummy.c" ;
+	for c in cc gcc c89 c99 ; do
+	  if ($c -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then
+	     CC_FOR_BUILD="$c"; break ;
+	  fi ;
+	done ;
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found ;
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+case "$UNAME_SYSTEM" in
+Linux|GNU|GNU/*)
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	LIBC=gnu
+
+	eval "$set_cc_for_build"
+	cat <<-EOF > "$dummy.c"
+	#include 
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#else
+	LIBC=gnu
+	#endif
+	EOF
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`"
+
+	# If ldd exists, use it to detect musl libc.
+	if command -v ldd >/dev/null && \
+		ldd --version 2>&1 | grep -q ^musl
+	then
+	    LIBC=musl
+	fi
+	;;
+esac
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+	    "/sbin/$sysctl" 2>/dev/null || \
+	    "/usr/sbin/$sysctl" 2>/dev/null || \
+	    echo unknown)`
+	case "$UNAME_MACHINE_ARCH" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    earmv*)
+		arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+		endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'`
+		machine="${arch}${endian}"-unknown
+		;;
+	    *) machine="$UNAME_MACHINE_ARCH"-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently (or will in the future) and ABI.
+	case "$UNAME_MACHINE_ARCH" in
+	    earm*)
+		os=netbsdelf
+		;;
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		eval "$set_cc_for_build"
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep -q __ELF__
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+		os=netbsd
+		;;
+	esac
+	# Determine ABI tags.
+	case "$UNAME_MACHINE_ARCH" in
+	    earm*)
+		expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+		abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case "$UNAME_VERSION" in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "$machine-${os}${release}${abi}"
+	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE"
+	exit ;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE"
+	exit ;;
+    *:LibertyBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE"
+	exit ;;
+    *:MidnightBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE"
+	exit ;;
+    *:ekkoBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE"
+	exit ;;
+    *:SolidBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE"
+	exit ;;
+    macppc:MirBSD:*:*)
+	echo powerpc-unknown-mirbsd"$UNAME_RELEASE"
+	exit ;;
+    *:MirBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE"
+	exit ;;
+    *:Sortix:*:*)
+	echo "$UNAME_MACHINE"-unknown-sortix
+	exit ;;
+    *:Redox:*:*)
+	echo "$UNAME_MACHINE"-unknown-redox
+	exit ;;
+    mips:OSF1:*.*)
+        echo mips-dec-osf1
+        exit ;;
+    alpha:OSF1:*:*)
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case "$ALPHA_CPU_TYPE" in
+	    "EV4 (21064)")
+		UNAME_MACHINE=alpha ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE=alpha ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE=alpha ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE=alphaev5 ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE=alphaev56 ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE=alphapca56 ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE=alphapca57 ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE=alphaev6 ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE=alphaev67 ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE=alphaev69 ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE=alphaev7 ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE=alphaev79 ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-unknown-sysv4
+	exit ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo "$UNAME_MACHINE"-unknown-amigaos
+	exit ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	echo "$UNAME_MACHINE"-unknown-morphos
+	exit ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit ;;
+    *:z/VM:*:*)
+	echo s390-ibm-zvmoe
+	exit ;;
+    *:OS400:*:*)
+	echo powerpc-ibm-os400
+	exit ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix"$UNAME_RELEASE"
+	exit ;;
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
+	echo arm-unknown-riscos
+	exit ;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit ;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit ;;
+    NILE*:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit ;;
+    DRS?6000:unix:4.0:6*)
+	echo sparc-icl-nx6
+	exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) echo sparc-icl-nx7; exit ;;
+	esac ;;
+    s390x:SunOS:*:*)
+	echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+	exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	echo i386-pc-auroraux"$UNAME_RELEASE"
+	exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	eval "$set_cc_for_build"
+	SUN_ARCH=i386
+	# If there is a compiler, see if it is configured for 64-bit objects.
+	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+	# This test works for both compilers.
+	if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+		(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		grep IS_64BIT_ARCH >/dev/null
+	    then
+		SUN_ARCH=x86_64
+	    fi
+	fi
+	echo "$SUN_ARCH"-pc-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`"
+	exit ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos"$UNAME_RELEASE"
+	exit ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos"$UNAME_RELEASE"
+		;;
+	    sun4)
+		echo sparc-sun-sunos"$UNAME_RELEASE"
+		;;
+	esac
+	exit ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos"$UNAME_RELEASE"
+	exit ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+	echo m68k-milan-mint"$UNAME_RELEASE"
+	exit ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+	echo m68k-hades-mint"$UNAME_RELEASE"
+	exit ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+	echo m68k-unknown-mint"$UNAME_RELEASE"
+	exit ;;
+    m68k:machten:*:*)
+	echo m68k-apple-machten"$UNAME_RELEASE"
+	exit ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten"$UNAME_RELEASE"
+	exit ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix"$UNAME_RELEASE"
+	exit ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix"$UNAME_RELEASE"
+	exit ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix"$UNAME_RELEASE"
+	exit ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	eval "$set_cc_for_build"
+	sed 's/^	//' << EOF > "$dummy.c"
+#ifdef __cplusplus
+#include   /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
+	  dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	echo mips-mips-riscos"$UNAME_RELEASE"
+	exit ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit ;;
+    Motorola:*:4.3:PL8-*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit ;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ]
+	then
+	    if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \
+	       [ "$TARGET_BINARY_INTERFACE"x = x ]
+	    then
+		echo m88k-dg-dgux"$UNAME_RELEASE"
+	    else
+		echo m88k-dg-dguxbcs"$UNAME_RELEASE"
+	    fi
+	else
+	    echo i586-dg-dgux"$UNAME_RELEASE"
+	fi
+	exit ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`"
+	exit ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	echo i386-ibm-aix
+	exit ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+	fi
+	echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV"
+	exit ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		eval "$set_cc_for_build"
+		sed 's/^		//' << EOF > "$dummy.c"
+		#include 
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"`
+		then
+			echo "$SYSTEM_NAME"
+		else
+			echo rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit ;;
+    *:AIX:*:[4567])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/lslpp ] ; then
+		IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+			   awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
+	else
+		IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+	fi
+	echo "$IBM_ARCH"-ibm-aix"$IBM_REV"
+	exit ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit ;;
+    ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
+	echo romp-ibm-bsd4.4
+	exit ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	echo romp-ibm-bsd"$UNAME_RELEASE"   # 4.3 with uname added to
+	exit ;;                             # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit ;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+	case "$UNAME_MACHINE" in
+	    9000/31?)            HP_ARCH=m68000 ;;
+	    9000/[34]??)         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if [ -x /usr/bin/getconf ]; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case "$sc_cpu_version" in
+		      523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case "$sc_kernel_bits" in
+			  32) HP_ARCH=hppa2.0n ;;
+			  64) HP_ARCH=hppa2.0w ;;
+			  '') HP_ARCH=hppa2.0 ;;   # HP-UX 10.20
+			esac ;;
+		    esac
+		fi
+		if [ "$HP_ARCH" = "" ]; then
+		    eval "$set_cc_for_build"
+		    sed 's/^		//' << EOF > "$dummy.c"
+
+		#define _HPUX_SOURCE
+		#include 
+		#include 
+
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
+
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
+EOF
+		    (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if [ "$HP_ARCH" = hppa2.0w ]
+	then
+	    eval "$set_cc_for_build"
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep -q __LP64__
+	    then
+		HP_ARCH=hppa2.0w
+	    else
+		HP_ARCH=hppa64
+	    fi
+	fi
+	echo "$HP_ARCH"-hp-hpux"$HPUX_REV"
+	exit ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux"$HPUX_REV"
+	exit ;;
+    3050*:HI-UX:*:*)
+	eval "$set_cc_for_build"
+	sed 's/^	//' << EOF > "$dummy.c"
+	#include 
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	echo unknown-hitachi-hiuxwe2
+	exit ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
+	echo hppa1.1-hp-bsd
+	exit ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
+	echo hppa1.1-hp-osf
+	exit ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit ;;
+    i*86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo "$UNAME_MACHINE"-unknown-osf1mk
+	else
+	    echo "$UNAME_MACHINE"-unknown-osf1
+	fi
+	exit ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+	exit ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+	exit ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+	exit ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+	exit ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    *:UNICOS/mp:*:*)
+	echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
+	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    5000:UNIX_System_V:4.*:*)
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
+	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE"
+	exit ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi"$UNAME_RELEASE"
+	exit ;;
+    *:BSD/OS:*:*)
+	echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE"
+	exit ;;
+    *:FreeBSD:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case "$UNAME_PROCESSOR" in
+	    amd64)
+		UNAME_PROCESSOR=x86_64 ;;
+	    i386)
+		UNAME_PROCESSOR=i586 ;;
+	esac
+	echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+	exit ;;
+    i*:CYGWIN*:*)
+	echo "$UNAME_MACHINE"-pc-cygwin
+	exit ;;
+    *:MINGW64*:*)
+	echo "$UNAME_MACHINE"-pc-mingw64
+	exit ;;
+    *:MINGW*:*)
+	echo "$UNAME_MACHINE"-pc-mingw32
+	exit ;;
+    *:MSYS*:*)
+	echo "$UNAME_MACHINE"-pc-msys
+	exit ;;
+    i*:PW*:*)
+	echo "$UNAME_MACHINE"-pc-pw32
+	exit ;;
+    *:Interix*:*)
+	case "$UNAME_MACHINE" in
+	    x86)
+		echo i586-pc-interix"$UNAME_RELEASE"
+		exit ;;
+	    authenticamd | genuineintel | EM64T)
+		echo x86_64-unknown-interix"$UNAME_RELEASE"
+		exit ;;
+	    IA64)
+		echo ia64-unknown-interix"$UNAME_RELEASE"
+		exit ;;
+	esac ;;
+    i*:UWIN*:*)
+	echo "$UNAME_MACHINE"-pc-uwin
+	exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	echo x86_64-unknown-cygwin
+	exit ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    *:GNU:*:*)
+	# the GNU system
+	echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`"
+	exit ;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC"
+	exit ;;
+    i*86:Minix:*:*)
+	echo "$UNAME_MACHINE"-pc-minix
+	exit ;;
+    aarch64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    arm*:Linux:*:*)
+	eval "$set_cc_for_build"
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi
+	    else
+		echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf
+	    fi
+	fi
+	exit ;;
+    avr32*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    cris:Linux:*:*)
+	echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
+	exit ;;
+    crisv32:Linux:*:*)
+	echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
+	exit ;;
+    e2k:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    frv:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    hexagon:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    i*86:Linux:*:*)
+	echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
+	exit ;;
+    ia64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    k1om:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    m32r*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    m68*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	eval "$set_cc_for_build"
+	sed 's/^	//' << EOF > "$dummy.c"
+	#undef CPU
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=${UNAME_MACHINE}el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=${UNAME_MACHINE}
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
+	test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+	;;
+    mips64el:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    openrisc*:Linux:*:*)
+	echo or1k-unknown-linux-"$LIBC"
+	exit ;;
+    or32:Linux:*:* | or1k*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    padre:Linux:*:*)
+	echo sparc-unknown-linux-"$LIBC"
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-"$LIBC"
+	exit ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;;
+	  PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;;
+	  *)    echo hppa-unknown-linux-"$LIBC" ;;
+	esac
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-"$LIBC"
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-"$LIBC"
+	exit ;;
+    ppc64le:Linux:*:*)
+	echo powerpc64le-unknown-linux-"$LIBC"
+	exit ;;
+    ppcle:Linux:*:*)
+	echo powerpcle-unknown-linux-"$LIBC"
+	exit ;;
+    riscv32:Linux:*:* | riscv64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo "$UNAME_MACHINE"-ibm-linux-"$LIBC"
+	exit ;;
+    sh64*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    sh*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    tile*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    vax:Linux:*:*)
+	echo "$UNAME_MACHINE"-dec-linux-"$LIBC"
+	exit ;;
+    x86_64:Linux:*:*)
+	if objdump -f /bin/sh | grep -q elf32-x86-64; then
+	    echo "$UNAME_MACHINE"-pc-linux-"$LIBC"x32
+	else
+	    echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
+	fi
+	exit ;;
+    xtensa*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	echo i386-sequent-sysv4
+	exit ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION"
+	exit ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo "$UNAME_MACHINE"-pc-os2-emx
+	exit ;;
+    i*86:XTS-300:*:STOP)
+	echo "$UNAME_MACHINE"-unknown-stop
+	exit ;;
+    i*86:atheos:*:*)
+	echo "$UNAME_MACHINE"-unknown-atheos
+	exit ;;
+    i*86:syllable:*:*)
+	echo "$UNAME_MACHINE"-pc-syllable
+	exit ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+	echo i386-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    i*86:*DOS:*:*)
+	echo "$UNAME_MACHINE"-pc-msdosdjgpp
+	exit ;;
+    i*86:*:4.*:*)
+	UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL"
+	else
+		echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL"
+	fi
+	exit ;;
+    i*86:*:5:[678]*)
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}"
+	exit ;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL"
+	else
+		echo "$UNAME_MACHINE"-pc-sysv32
+	fi
+	exit ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
+	# Note: whatever this is, it MUST be the same as what config.sub
+	# prints for the "djgpp" host, or else GDB configure will decide that
+	# this is a cross-build.
+	echo i586-pc-msdosdjgpp
+	exit ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv"$UNAME_RELEASE"  # Unknown i860-SVR4
+	fi
+	exit ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	echo m68k-convergent-sysv
+	exit ;;
+    M680?0:D-NIX:5.3:*)
+	echo m68k-diab-dnix
+	exit ;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+	OS_REL='.3'
+	test -r /etc/.relid \
+	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	    && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	    && { echo i586-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+	    && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	echo m68k-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    rs6000:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+	echo powerpc-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv"$UNAME_RELEASE"
+	exit ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    RM*:SINIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo "$UNAME_MACHINE"-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit ;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says 
+	echo i586-unisys-sysv4
+	exit ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes .
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit ;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo "$UNAME_MACHINE"-stratus-vos
+	exit ;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo hppa1.1-stratus-vos
+	exit ;;
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux"$UNAME_RELEASE"
+	exit ;;
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if [ -d /usr/nec ]; then
+		echo mips-nec-sysv"$UNAME_RELEASE"
+	else
+		echo mips-unknown-sysv"$UNAME_RELEASE"
+	fi
+	exit ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit ;;
+    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+	echo i586-pc-haiku
+	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-6:SUPER-UX:*:*)
+	echo sx6-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-7:SUPER-UX:*:*)
+	echo sx7-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-8:SUPER-UX:*:*)
+	echo sx8-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-8R:SUPER-UX:*:*)
+	echo sx8r-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-ACE:SUPER-UX:*:*)
+	echo sxace-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody"$UNAME_RELEASE"
+	exit ;;
+    *:Rhapsody:*:*)
+	echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE"
+	exit ;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	eval "$set_cc_for_build"
+	if test "$UNAME_PROCESSOR" = unknown ; then
+	    UNAME_PROCESSOR=powerpc
+	fi
+	if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then
+	    if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_64BIT_ARCH >/dev/null
+		then
+		    case $UNAME_PROCESSOR in
+			i386) UNAME_PROCESSOR=x86_64 ;;
+			powerpc) UNAME_PROCESSOR=powerpc64 ;;
+		    esac
+		fi
+		# On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
+		if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_PPC >/dev/null
+		then
+		    UNAME_PROCESSOR=powerpc
+		fi
+	    fi
+	elif test "$UNAME_PROCESSOR" = i386 ; then
+	    # Avoid executing cc on OS X 10.9, as it ships with a stub
+	    # that puts up a graphical alert prompting to install
+	    # developer tools.  Any system running Mac OS X 10.7 or
+	    # later (Darwin 11 and later) is required to have a 64-bit
+	    # processor. This is not true of the ARM version of Darwin
+	    # that Apple uses in portable devices.
+	    UNAME_PROCESSOR=x86_64
+	fi
+	echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE"
+	exit ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = x86; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE"
+	exit ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit ;;
+    NEO-*:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSE-*:NONSTOP_KERNEL:*:*)
+	echo nse-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSR-*:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSV-*:NONSTOP_KERNEL:*:*)
+	echo nsv-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSX-*:NONSTOP_KERNEL:*:*)
+	echo nsx-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit ;;
+    DS/*:UNIX_System_V:*:*)
+	echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE"
+	exit ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "$cputype" = 386; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo "$UNAME_MACHINE"-unknown-plan9
+	exit ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit ;;
+    SEI:*:*:SEIUX)
+	echo mips-sei-seiux"$UNAME_RELEASE"
+	exit ;;
+    *:DragonFly:*:*)
+	echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+	exit ;;
+    *:*VMS:*:*)
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case "$UNAME_MACHINE" in
+	    A*) echo alpha-dec-vms ; exit ;;
+	    I*) echo ia64-dec-vms ; exit ;;
+	    V*) echo vax-dec-vms ; exit ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	echo i386-pc-xenix
+	exit ;;
+    i*86:skyos:*:*)
+	echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`"
+	exit ;;
+    i*86:rdos:*:*)
+	echo "$UNAME_MACHINE"-pc-rdos
+	exit ;;
+    i*86:AROS:*:*)
+	echo "$UNAME_MACHINE"-pc-aros
+	exit ;;
+    x86_64:VMkernel:*:*)
+	echo "$UNAME_MACHINE"-unknown-esx
+	exit ;;
+    amd64:Isilon\ OneFS:*:*)
+	echo x86_64-unknown-onefs
+	exit ;;
+esac
+
+echo "$0: unable to guess system type" >&2
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM" in
+    mips:Linux | mips64:Linux)
+	# If we got here on MIPS GNU/Linux, output extra information.
+	cat >&2 <&2 </dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = "$UNAME_MACHINE"
+UNAME_RELEASE = "$UNAME_RELEASE"
+UNAME_SYSTEM  = "$UNAME_SYSTEM"
+UNAME_VERSION = "$UNAME_VERSION"
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-functions 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/trunk/3rdparty/gperftools-2-fit/config.sub b/trunk/3rdparty/gperftools-2-fit/config.sub
new file mode 100755
index 000000000..1d8e98bce
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/config.sub
@@ -0,0 +1,1801 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
+
+timestamp='2018-02-22'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see .
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+
+
+# Please send patches to .
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
+
+Canonicalize a configuration name.
+
+Options:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to ."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright 1992-2018 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo "$1"
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
+  kopensolaris*-gnu* | cloudabi*-eabi* | \
+  storm-chaos* | os2-emx* | rtmk-nova*)
+    os=-$maybe_os
+    basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo "$1" | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
+  *)
+    basic_machine=`echo "$1" | sed 's/-[^-]*$//'`
+    if [ "$basic_machine" != "$1" ]
+    then os=`echo "$1" | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+	-sun*os*)
+		# Prevent following clause from handling this invalid input.
+		;;
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+	-apple | -axis | -knuth | -cray | -microblaze*)
+		os=
+		basic_machine=$1
+		;;
+	-bluegene*)
+		os=-cnk
+		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+	-chorusrdb)
+		os=-chorusrdb
+		basic_machine=$1
+		;;
+	-hiux*)
+		os=-hiuxwe2
+		;;
+	-sco6)
+		os=-sco5v6
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5)
+		os=-sco3.2v5
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco4)
+		os=-sco3.2v4
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2v[4-9]*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5v6*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco*)
+		os=-sco3.2v2
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-udk*)
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-isc)
+		os=-isc2.2
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-clix*)
+		basic_machine=clipper-intergraph
+		;;
+	-isc*)
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+		;;
+	-lynx*178)
+		os=-lynxos178
+		;;
+	-lynx*5)
+		os=-lynxos5
+		;;
+	-lynx*)
+		os=-lynxos
+		;;
+	-ptx*)
+		basic_machine=`echo "$1" | sed -e 's/86-.*/86-sequent/'`
+		;;
+	-psos*)
+		os=-psos
+		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+	# Recognize the basic CPU types without company name.
+	# Some are omitted here because they have special meanings below.
+	1750a | 580 \
+	| a29k \
+	| aarch64 | aarch64_be \
+	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+	| am33_2.0 \
+	| arc | arceb \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| avr | avr32 \
+	| ba \
+	| be32 | be64 \
+	| bfin \
+	| c4x | c8051 | clipper \
+	| d10v | d30v | dlx | dsp16xx \
+	| e2k | epiphany \
+	| fido | fr30 | frv | ft32 \
+	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
+	| i370 | i860 | i960 | ia16 | ia64 \
+	| ip2k | iq2000 \
+	| k1om \
+	| le32 | le64 \
+	| lm32 \
+	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
+	| mips | mipsbe | mipseb | mipsel | mipsle \
+	| mips16 \
+	| mips64 | mips64el \
+	| mips64octeon | mips64octeonel \
+	| mips64orion | mips64orionel \
+	| mips64r5900 | mips64r5900el \
+	| mips64vr | mips64vrel \
+	| mips64vr4100 | mips64vr4100el \
+	| mips64vr4300 | mips64vr4300el \
+	| mips64vr5000 | mips64vr5000el \
+	| mips64vr5900 | mips64vr5900el \
+	| mipsisa32 | mipsisa32el \
+	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa32r6 | mipsisa32r6el \
+	| mipsisa64 | mipsisa64el \
+	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64r6 | mipsisa64r6el \
+	| mipsisa64sb1 | mipsisa64sb1el \
+	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipsr5900 | mipsr5900el \
+	| mipstx39 | mipstx39el \
+	| mn10200 | mn10300 \
+	| moxie \
+	| mt \
+	| msp430 \
+	| nds32 | nds32le | nds32be \
+	| nios | nios2 | nios2eb | nios2el \
+	| ns16k | ns32k \
+	| open8 | or1k | or1knd | or32 \
+	| pdp10 | pj | pjl \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pru \
+	| pyramid \
+	| riscv32 | riscv64 \
+	| rl78 | rx \
+	| score \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh64 | sh64le \
+	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
+	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
+	| spu \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+	| ubicom32 \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| visium \
+	| wasm32 \
+	| x86 | xc16x | xstormy16 | xtensa \
+	| z8k | z80)
+		basic_machine=$basic_machine-unknown
+		;;
+	c54x)
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
+	leon|leon[3-9])
+		basic_machine=sparc-$basic_machine
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65)
+		;;
+	ms1)
+		basic_machine=mt-unknown
+		;;
+
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i*86 | x86_64)
+	  basic_machine=$basic_machine-pc
+	  ;;
+	# Object if more than one company name word.
+	*-*-*)
+		echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
+		exit 1
+		;;
+	# Recognize the basic CPU types with company name.
+	580-* \
+	| a29k-* \
+	| aarch64-* | aarch64_be-* \
+	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
+	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+	| avr-* | avr32-* \
+	| ba-* \
+	| be32-* | be64-* \
+	| bfin-* | bs2000-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+	| c8051-* | clipper-* | craynv-* | cydra-* \
+	| d10v-* | d30v-* | dlx-* \
+	| e2k-* | elxsi-* \
+	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+	| h8300-* | h8500-* \
+	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
+	| i*86-* | i860-* | i960-* | ia16-* | ia64-* \
+	| ip2k-* | iq2000-* \
+	| k1om-* \
+	| le32-* | le64-* \
+	| lm32-* \
+	| m32c-* | m32r-* | m32rle-* \
+	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| microblaze-* | microblazeel-* \
+	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+	| mips16-* \
+	| mips64-* | mips64el-* \
+	| mips64octeon-* | mips64octeonel-* \
+	| mips64orion-* | mips64orionel-* \
+	| mips64r5900-* | mips64r5900el-* \
+	| mips64vr-* | mips64vrel-* \
+	| mips64vr4100-* | mips64vr4100el-* \
+	| mips64vr4300-* | mips64vr4300el-* \
+	| mips64vr5000-* | mips64vr5000el-* \
+	| mips64vr5900-* | mips64vr5900el-* \
+	| mipsisa32-* | mipsisa32el-* \
+	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa32r6-* | mipsisa32r6el-* \
+	| mipsisa64-* | mipsisa64el-* \
+	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64r6-* | mipsisa64r6el-* \
+	| mipsisa64sb1-* | mipsisa64sb1el-* \
+	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipsr5900-* | mipsr5900el-* \
+	| mipstx39-* | mipstx39el-* \
+	| mmix-* \
+	| mt-* \
+	| msp430-* \
+	| nds32-* | nds32le-* | nds32be-* \
+	| nios-* | nios2-* | nios2eb-* | nios2el-* \
+	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
+	| or1k*-* \
+	| orion-* \
+	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pru-* \
+	| pyramid-* \
+	| riscv32-* | riscv64-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+	| sparclite-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
+	| tahoe-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tile*-* \
+	| tron-* \
+	| ubicom32-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
+	| visium-* \
+	| wasm32-* \
+	| we32k-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
+	| xstormy16-* | xtensa*-* \
+	| ymp-* \
+	| z8k-* | z80-*)
+		;;
+	# Recognize the basic CPU types without company name, with glob match.
+	xtensa*)
+		basic_machine=$basic_machine-unknown
+		;;
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-pc
+		os=-bsd
+		;;
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		basic_machine=m68000-att
+		;;
+	3b*)
+		basic_machine=we32k-att
+		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	abacus)
+		basic_machine=abacus-unknown
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
+	alliant | fx80)
+		basic_machine=fx80-alliant
+		;;
+	altos | altos3068)
+		basic_machine=m68k-altos
+		;;
+	am29k)
+		basic_machine=a29k-none
+		os=-bsd
+		;;
+	amd64)
+		basic_machine=x86_64-pc
+		;;
+	amd64-*)
+		basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	amdahl)
+		basic_machine=580-amdahl
+		os=-sysv
+		;;
+	amiga | amiga-*)
+		basic_machine=m68k-unknown
+		;;
+	amigaos | amigados)
+		basic_machine=m68k-unknown
+		os=-amigaos
+		;;
+	amigaunix | amix)
+		basic_machine=m68k-unknown
+		os=-sysv4
+		;;
+	apollo68)
+		basic_machine=m68k-apollo
+		os=-sysv
+		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
+	aros)
+		basic_machine=i386-pc
+		os=-aros
+		;;
+	asmjs)
+		basic_machine=asmjs-unknown
+		;;
+	aux)
+		basic_machine=m68k-apple
+		os=-aux
+		;;
+	balance)
+		basic_machine=ns32k-sequent
+		os=-dynix
+		;;
+	blackfin)
+		basic_machine=bfin-unknown
+		os=-linux
+		;;
+	blackfin-*)
+		basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	bluegene*)
+		basic_machine=powerpc-ibm
+		os=-cnk
+		;;
+	c54x-*)
+		basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	c55x-*)
+		basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	c6x-*)
+		basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	c90)
+		basic_machine=c90-cray
+		os=-unicos
+		;;
+	cegcc)
+		basic_machine=arm-unknown
+		os=-cegcc
+		;;
+	convex-c1)
+		basic_machine=c1-convex
+		os=-bsd
+		;;
+	convex-c2)
+		basic_machine=c2-convex
+		os=-bsd
+		;;
+	convex-c32)
+		basic_machine=c32-convex
+		os=-bsd
+		;;
+	convex-c34)
+		basic_machine=c34-convex
+		os=-bsd
+		;;
+	convex-c38)
+		basic_machine=c38-convex
+		os=-bsd
+		;;
+	cray | j90)
+		basic_machine=j90-cray
+		os=-unicos
+		;;
+	craynv)
+		basic_machine=craynv-cray
+		os=-unicosmp
+		;;
+	cr16 | cr16-*)
+		basic_machine=cr16-unknown
+		os=-elf
+		;;
+	crds | unos)
+		basic_machine=m68k-crds
+		;;
+	crisv32 | crisv32-* | etraxfs*)
+		basic_machine=crisv32-axis
+		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
+	crx)
+		basic_machine=crx-unknown
+		os=-elf
+		;;
+	da30 | da30-*)
+		basic_machine=m68k-da30
+		;;
+	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+		basic_machine=mips-dec
+		;;
+	decsystem10* | dec10*)
+		basic_machine=pdp10-dec
+		os=-tops10
+		;;
+	decsystem20* | dec20*)
+		basic_machine=pdp10-dec
+		os=-tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		basic_machine=m68k-motorola
+		;;
+	delta88)
+		basic_machine=m88k-motorola
+		os=-sysv3
+		;;
+	dicos)
+		basic_machine=i686-pc
+		os=-dicos
+		;;
+	djgpp)
+		basic_machine=i586-pc
+		os=-msdosdjgpp
+		;;
+	dpx20 | dpx20-*)
+		basic_machine=rs6000-bull
+		os=-bosx
+		;;
+	dpx2*)
+		basic_machine=m68k-bull
+		os=-sysv3
+		;;
+	e500v[12])
+		basic_machine=powerpc-unknown
+		os=$os"spe"
+		;;
+	e500v[12]-*)
+		basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=$os"spe"
+		;;
+	ebmon29k)
+		basic_machine=a29k-amd
+		os=-ebmon
+		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
+	encore | umax | mmax)
+		basic_machine=ns32k-encore
+		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
+	fx2800)
+		basic_machine=i860-alliant
+		;;
+	genix)
+		basic_machine=ns32k-ns
+		;;
+	gmicro)
+		basic_machine=tron-gmicro
+		os=-sysv
+		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
+	h3050r* | hiux*)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	h8300hms)
+		basic_machine=h8300-hitachi
+		os=-hms
+		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
+	harris)
+		basic_machine=m88k-harris
+		os=-sysv3
+		;;
+	hp300-*)
+		basic_machine=m68k-hp
+		;;
+	hp300bsd)
+		basic_machine=m68k-hp
+		os=-bsd
+		;;
+	hp300hpux)
+		basic_machine=m68k-hp
+		os=-hpux
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		basic_machine=m68000-hp
+		;;
+	hp9k3[2-9][0-9])
+		basic_machine=m68k-hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
+	i370-ibm* | ibm*)
+		basic_machine=i370-ibm
+		;;
+	i*86v32)
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+		os=-sysv32
+		;;
+	i*86v4*)
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+		os=-sysv4
+		;;
+	i*86v)
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+		os=-sysv
+		;;
+	i*86sol2)
+		basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+		os=-solaris2
+		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
+	iris | iris4d)
+		basic_machine=mips-sgi
+		case $os in
+		    -irix*)
+			;;
+		    *)
+			os=-irix4
+			;;
+		esac
+		;;
+	isi68 | isi)
+		basic_machine=m68k-isi
+		os=-sysv
+		;;
+	leon-*|leon[3-9]-*)
+		basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'`
+		;;
+	m68knommu)
+		basic_machine=m68k-unknown
+		os=-linux
+		;;
+	m68knommu-*)
+		basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	magnum | m3230)
+		basic_machine=mips-mips
+		os=-sysv
+		;;
+	merlin)
+		basic_machine=ns32k-utek
+		os=-sysv
+		;;
+	microblaze*)
+		basic_machine=microblaze-xilinx
+		;;
+	mingw64)
+		basic_machine=x86_64-pc
+		os=-mingw64
+		;;
+	mingw32)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	mingw32ce)
+		basic_machine=arm-unknown
+		os=-mingw32ce
+		;;
+	miniframe)
+		basic_machine=m68000-convergent
+		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+	mips3*-*)
+		basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`
+		;;
+	mips3*)
+		basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	morphos)
+		basic_machine=powerpc-unknown
+		os=-morphos
+		;;
+	moxiebox)
+		basic_machine=moxie-unknown
+		os=-moxiebox
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	ms1-*)
+		basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'`
+		;;
+	msys)
+		basic_machine=i686-pc
+		os=-msys
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
+	ncr3000)
+		basic_machine=i486-ncr
+		os=-sysv4
+		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
+	news | news700 | news800 | news900)
+		basic_machine=m68k-sony
+		os=-newsos
+		;;
+	news1000)
+		basic_machine=m68030-sony
+		os=-newsos
+		;;
+	news-3600 | risc-news)
+		basic_machine=mips-sony
+		os=-newsos
+		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
+	next | m*-next)
+		basic_machine=m68k-next
+		case $os in
+		    -nextstep* )
+			;;
+		    -ns2*)
+		      os=-nextstep2
+			;;
+		    *)
+		      os=-nextstep3
+			;;
+		esac
+		;;
+	nh3000)
+		basic_machine=m68k-harris
+		os=-cxux
+		;;
+	nh[45]000)
+		basic_machine=m88k-harris
+		os=-cxux
+		;;
+	nindy960)
+		basic_machine=i960-intel
+		os=-nindy
+		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
+	np1)
+		basic_machine=np1-gould
+		;;
+	neo-tandem)
+		basic_machine=neo-tandem
+		;;
+	nse-tandem)
+		basic_machine=nse-tandem
+		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	nsv-tandem)
+		basic_machine=nsv-tandem
+		;;
+	nsx-tandem)
+		basic_machine=nsx-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	openrisc | openrisc-*)
+		basic_machine=or32-unknown
+		;;
+	os400)
+		basic_machine=powerpc-ibm
+		os=-os400
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
+	pa-hitachi)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	paragon)
+		basic_machine=i860-intel
+		os=-osf
+		;;
+	parisc)
+		basic_machine=hppa-unknown
+		os=-linux
+		;;
+	parisc-*)
+		basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	pbd)
+		basic_machine=sparc-tti
+		;;
+	pbb)
+		basic_machine=m68k-tti
+		;;
+	pc532 | pc532-*)
+		basic_machine=ns32k-pc532
+		;;
+	pc98)
+		basic_machine=i386-pc
+		;;
+	pc98-*)
+		basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pentium | p5 | k5 | k6 | nexgen | viac3)
+		basic_machine=i586-pc
+		;;
+	pentiumpro | p6 | 6x86 | athlon | athlon_*)
+		basic_machine=i686-pc
+		;;
+	pentiumii | pentium2 | pentiumiii | pentium3)
+		basic_machine=i686-pc
+		;;
+	pentium4)
+		basic_machine=i786-pc
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+		basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
+		basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+		basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pentium4-*)
+		basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	pn)
+		basic_machine=pn-gould
+		;;
+	power)	basic_machine=power-ibm
+		;;
+	ppc | ppcbe)	basic_machine=powerpc-unknown
+		;;
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	ppcle | powerpclittle)
+		basic_machine=powerpcle-unknown
+		;;
+	ppcle-* | powerpclittle-*)
+		basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	ppc64)	basic_machine=powerpc64-unknown
+		;;
+	ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	ppc64le | powerpc64little)
+		basic_machine=powerpc64le-unknown
+		;;
+	ppc64le-* | powerpc64little-*)
+		basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	ps2)
+		basic_machine=i386-ibm
+		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rdos | rdos64)
+		basic_machine=x86_64-pc
+		os=-rdos
+		;;
+	rdos32)
+		basic_machine=i386-pc
+		os=-rdos
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	rm[46]00)
+		basic_machine=mips-siemens
+		;;
+	rtpc | rtpc-*)
+		basic_machine=romp-ibm
+		;;
+	s390 | s390-*)
+		basic_machine=s390-ibm
+		;;
+	s390x | s390x-*)
+		basic_machine=s390x-ibm
+		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	sb1)
+		basic_machine=mipsisa64sb1-unknown
+		;;
+	sb1el)
+		basic_machine=mipsisa64sb1el-unknown
+		;;
+	sde)
+		basic_machine=mipsisa32-sde
+		os=-elf
+		;;
+	sei)
+		basic_machine=mips-sei
+		os=-seiux
+		;;
+	sequent)
+		basic_machine=i386-sequent
+		;;
+	sh5el)
+		basic_machine=sh5le-unknown
+		;;
+	simso-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
+	sps7)
+		basic_machine=m68k-bull
+		os=-sysv2
+		;;
+	spur)
+		basic_machine=spur-unknown
+		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+		;;
+	sun2)
+		basic_machine=m68000-sun
+		;;
+	sun2os3)
+		basic_machine=m68000-sun
+		os=-sunos3
+		;;
+	sun2os4)
+		basic_machine=m68000-sun
+		os=-sunos4
+		;;
+	sun3os3)
+		basic_machine=m68k-sun
+		os=-sunos3
+		;;
+	sun3os4)
+		basic_machine=m68k-sun
+		os=-sunos4
+		;;
+	sun4os3)
+		basic_machine=sparc-sun
+		os=-sunos3
+		;;
+	sun4os4)
+		basic_machine=sparc-sun
+		os=-sunos4
+		;;
+	sun4sol2)
+		basic_machine=sparc-sun
+		os=-solaris2
+		;;
+	sun3 | sun3-*)
+		basic_machine=m68k-sun
+		;;
+	sun4)
+		basic_machine=sparc-sun
+		;;
+	sun386 | sun386i | roadrunner)
+		basic_machine=i386-sun
+		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
+	symmetry)
+		basic_machine=i386-sequent
+		os=-dynix
+		;;
+	t3e)
+		basic_machine=alphaev5-cray
+		os=-unicos
+		;;
+	t90)
+		basic_machine=t90-cray
+		os=-unicos
+		;;
+	tile*)
+		basic_machine=$basic_machine-unknown
+		os=-linux-gnu
+		;;
+	tx39)
+		basic_machine=mipstx39-unknown
+		;;
+	tx39el)
+		basic_machine=mipstx39el-unknown
+		;;
+	toad1)
+		basic_machine=pdp10-xkl
+		os=-tops20
+		;;
+	tower | tower-32)
+		basic_machine=m68k-ncr
+		;;
+	tpf)
+		basic_machine=s390x-ibm
+		os=-tpf
+		;;
+	udi29k)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	ultra3)
+		basic_machine=a29k-nyu
+		os=-sym1
+		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
+	vaxv)
+		basic_machine=vax-dec
+		os=-sysv
+		;;
+	vms)
+		basic_machine=vax-dec
+		os=-vms
+		;;
+	vpp*|vx|vx-*)
+		basic_machine=f301-fujitsu
+		;;
+	vxworks960)
+		basic_machine=i960-wrs
+		os=-vxworks
+		;;
+	vxworks68)
+		basic_machine=m68k-wrs
+		os=-vxworks
+		;;
+	vxworks29k)
+		basic_machine=a29k-wrs
+		os=-vxworks
+		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	x64)
+		basic_machine=x86_64-pc
+		;;
+	xbox)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	xps | xps100)
+		basic_machine=xps100-honeywell
+		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'`
+		;;
+	ymp)
+		basic_machine=ymp-cray
+		os=-unicos
+		;;
+	none)
+		basic_machine=none-none
+		os=-none
+		;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
+	romp)
+		basic_machine=romp-ibm
+		;;
+	mmix)
+		basic_machine=mmix-knuth
+		;;
+	rs6000)
+		basic_machine=rs6000-ibm
+		;;
+	vax)
+		basic_machine=vax-dec
+		;;
+	pdp11)
+		basic_machine=pdp11-dec
+		;;
+	we32k)
+		basic_machine=we32k-att
+		;;
+	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+		basic_machine=sh-unknown
+		;;
+	cydra)
+		basic_machine=cydra-cydrome
+		;;
+	orion)
+		basic_machine=orion-highlevel
+		;;
+	orion105)
+		basic_machine=clipper-highlevel
+		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
+	*)
+		echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
+		exit 1
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+	*-digital*)
+		basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'`
+		;;
+	*-commodore*)
+		basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'`
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+	# First match some system type aliases that might get confused
+	# with valid system types.
+	# -solaris* is a basic system type, with this one exception.
+	-auroraux)
+		os=-auroraux
+		;;
+	-solaris1 | -solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	-solaris)
+		os=-solaris2
+		;;
+	-unixware*)
+		os=-sysv4.2uw
+		;;
+	-gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# es1800 is here to avoid being matched by es* (a different OS)
+	-es1800*)
+		os=-ose
+		;;
+	# Now accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST end in a * to match a version number.
+	# -sysv* is not here because it comes later, after sysvr4.
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+	      | -sym* | -kopensolaris* | -plan9* \
+	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+	      | -aos* | -aros* | -cloudabi* | -sortix* \
+	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+	      | -hiux* | -knetbsd* | -mirbsd* | -netbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \
+	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
+	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+	      | -morphos* | -superux* | -rtmk* | -windiss* \
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \
+	      | -midnightbsd*)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto-qnx*)
+		;;
+	-nto*)
+		os=`echo $os | sed -e 's|nto|nto-qnx|'`
+		;;
+	-sim | -xray | -os68k* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo "$os" | sed -e 's|mac|macos|'`
+		;;
+	-linux-dietlibc)
+		os=-linux-dietlibc
+		;;
+	-linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	-sunos5*)
+		os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
+		;;
+	-sunos6*)
+		os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
+		;;
+	-opened*)
+		os=-openedition
+		;;
+	-os400*)
+		os=-os400
+		;;
+	-wince*)
+		os=-wince
+		;;
+	-utek*)
+		os=-bsd
+		;;
+	-dynix*)
+		os=-bsd
+		;;
+	-acis*)
+		os=-aos
+		;;
+	-atheos*)
+		os=-atheos
+		;;
+	-syllable*)
+		os=-syllable
+		;;
+	-386bsd)
+		os=-bsd
+		;;
+	-ctix* | -uts*)
+		os=-sysv
+		;;
+	-nova*)
+		os=-rtmk-nova
+		;;
+	-ns2)
+		os=-nextstep2
+		;;
+	-nsk*)
+		os=-nsk
+		;;
+	# Preserve the version number of sinix5.
+	-sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	-sinix*)
+		os=-sysv4
+		;;
+	-tpf*)
+		os=-tpf
+		;;
+	-triton*)
+		os=-sysv3
+		;;
+	-oss*)
+		os=-sysv3
+		;;
+	-svr4*)
+		os=-sysv4
+		;;
+	-svr3)
+		os=-sysv3
+		;;
+	-sysvr4)
+		os=-sysv4
+		;;
+	# This must come after -sysvr4.
+	-sysv*)
+		;;
+	-ose*)
+		os=-ose
+		;;
+	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+		os=-mint
+		;;
+	-zvmoe)
+		os=-zvmoe
+		;;
+	-dicos*)
+		os=-dicos
+		;;
+	-pikeos*)
+		# Until real need of OS specific support for
+		# particular features comes up, bare metal
+		# configurations are quite functional.
+		case $basic_machine in
+		    arm*)
+			os=-eabi
+			;;
+		    *)
+			os=-elf
+			;;
+		esac
+		;;
+	-nacl*)
+		;;
+	-ios)
+		;;
+	-none)
+		;;
+	*)
+		# Get rid of the `-' at the beginning of $os.
+		os=`echo $os | sed 's/[^-]*-//'`
+		echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+	score-*)
+		os=-elf
+		;;
+	spu-*)
+		os=-elf
+		;;
+	*-acorn)
+		os=-riscix1.2
+		;;
+	arm*-rebel)
+		os=-linux
+		;;
+	arm*-semi)
+		os=-aout
+		;;
+	c4x-* | tic4x-*)
+		os=-coff
+		;;
+	c8051-*)
+		os=-elf
+		;;
+	hexagon-*)
+		os=-elf
+		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
+		;;
+	# This must come before the *-dec entry.
+	pdp10-*)
+		os=-tops20
+		;;
+	pdp11-*)
+		os=-none
+		;;
+	*-dec | vax-*)
+		os=-ultrix4.2
+		;;
+	m68*-apollo)
+		os=-domain
+		;;
+	i386-sun)
+		os=-sunos4.0.2
+		;;
+	m68000-sun)
+		os=-sunos3
+		;;
+	m68*-cisco)
+		os=-aout
+		;;
+	mep-*)
+		os=-elf
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
+	or32-*)
+		os=-coff
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=-sysv3
+		;;
+	sparc-* | *-sun)
+		os=-sunos4.1.1
+		;;
+	pru-*)
+		os=-elf
+		;;
+	*-be)
+		os=-beos
+		;;
+	*-ibm)
+		os=-aix
+		;;
+	*-knuth)
+		os=-mmixware
+		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
+	*-hp)
+		os=-hpux
+		;;
+	*-hitachi)
+		os=-hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=-sysv
+		;;
+	*-cbm)
+		os=-amigaos
+		;;
+	*-dg)
+		os=-dgux
+		;;
+	*-dolphin)
+		os=-sysv3
+		;;
+	m68k-ccur)
+		os=-rtu
+		;;
+	m88k-omron*)
+		os=-luna
+		;;
+	*-next)
+		os=-nextstep
+		;;
+	*-sequent)
+		os=-ptx
+		;;
+	*-crds)
+		os=-unos
+		;;
+	*-ns)
+		os=-genix
+		;;
+	i370-*)
+		os=-mvs
+		;;
+	*-gould)
+		os=-sysv
+		;;
+	*-highlevel)
+		os=-bsd
+		;;
+	*-encore)
+		os=-bsd
+		;;
+	*-sgi)
+		os=-irix
+		;;
+	*-siemens)
+		os=-sysv4
+		;;
+	*-masscomp)
+		os=-rtu
+		;;
+	f30[01]-fujitsu | f700-fujitsu)
+		os=-uxpv
+		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
+	*)
+		os=-none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+	*-unknown)
+		case $os in
+			-riscix*)
+				vendor=acorn
+				;;
+			-sunos*)
+				vendor=sun
+				;;
+			-cnk*|-aix*)
+				vendor=ibm
+				;;
+			-beos*)
+				vendor=be
+				;;
+			-hpux*)
+				vendor=hp
+				;;
+			-mpeix*)
+				vendor=hp
+				;;
+			-hiux*)
+				vendor=hitachi
+				;;
+			-unos*)
+				vendor=crds
+				;;
+			-dgux*)
+				vendor=dg
+				;;
+			-luna*)
+				vendor=omron
+				;;
+			-genix*)
+				vendor=ns
+				;;
+			-mvs* | -opened*)
+				vendor=ibm
+				;;
+			-os400*)
+				vendor=ibm
+				;;
+			-ptx*)
+				vendor=sequent
+				;;
+			-tpf*)
+				vendor=ibm
+				;;
+			-vxsim* | -vxworks* | -windiss*)
+				vendor=wrs
+				;;
+			-aux*)
+				vendor=apple
+				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
+			-vos*)
+				vendor=stratus
+				;;
+		esac
+		basic_machine=`echo "$basic_machine" | sed "s/unknown/$vendor/"`
+		;;
+esac
+
+echo "$basic_machine$os"
+exit
+
+# Local variables:
+# eval: (add-hook 'write-file-functions 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/trunk/3rdparty/gperftools-2-fit/configure b/trunk/3rdparty/gperftools-2-fit/configure
new file mode 100755
index 000000000..14d382902
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/configure
@@ -0,0 +1,22674 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69 for gperftools 2.9.1.
+#
+# Report bugs to .
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+
+  test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
+      || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and
+$0: gperftools@googlegroups.com about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+
+test -n "$DJDIR" || exec 7<&0 &1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='gperftools'
+PACKAGE_TARNAME='gperftools'
+PACKAGE_VERSION='2.9.1'
+PACKAGE_STRING='gperftools 2.9.1'
+PACKAGE_BUGREPORT='gperftools@googlegroups.com'
+PACKAGE_URL=''
+
+ac_unique_file="README"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include 
+#ifdef HAVE_SYS_TYPES_H
+# include 
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include 
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+#ifdef STDC_HEADERS
+# include 
+# include 
+#else
+# ifdef HAVE_STDLIB_H
+#  include 
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include 
+# endif
+# include 
+#endif
+#ifdef HAVE_STRINGS_H
+# include 
+#endif
+#ifdef HAVE_INTTYPES_H
+# include 
+#endif
+#ifdef HAVE_STDINT_H
+# include 
+#endif
+#ifdef HAVE_UNISTD_H
+# include 
+#endif"
+
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
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+WITH_DEBUGALLOC_FALSE
+WITH_DEBUGALLOC_TRUE
+WITH_HEAP_CHECKER_FALSE
+WITH_HEAP_CHECKER_TRUE
+WITH_HEAP_PROFILER_FALSE
+WITH_HEAP_PROFILER_TRUE
+WITH_CPU_PROFILER_FALSE
+WITH_CPU_PROFILER_TRUE
+OSX_FALSE
+OSX_TRUE
+MINGW_FALSE
+MINGW_TRUE
+HAVE_PTHREAD_DESPITE_ASKING_FOR_FALSE
+HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE
+PTHREAD_CFLAGS
+PTHREAD_LIBS
+PTHREAD_CC
+acx_pthread_config
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+NANOSLEEP_LIBS
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+ac_cv_have_std_align_val_t
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+CYGPATH_W
+am__isrc
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
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+host_vendor
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+TCMALLOC_AND_PROFILER_SO_VERSION
+PROFILER_SO_VERSION
+TCMALLOC_SO_VERSION
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+runstatedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL
+am__quote'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+enable_silent_rules
+enable_maintainer_mode
+enable_dependency_tracking
+enable_cpu_profiler
+enable_heap_profiler
+enable_heap_checker
+enable_debugalloc
+enable_minimal
+enable_stacktrace_via_backtrace
+enable_libunwind
+with_tcmalloc_pagesize
+with_tcmalloc_alignment
+enable_shared
+enable_static
+with_pic
+enable_fast_install
+with_aix_soname
+with_gnu_ld
+with_sysroot
+enable_libtool_lock
+enable_frame_pointers
+enable_deprecated_pprof
+enable_dynamic_sized_delete_support
+enable_sized_delete
+enable_emergency_malloc
+enable_large_alloc_report
+enable_aggressive_decommit_by_default
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CXX
+CXXFLAGS
+CCC
+CPP
+LT_SYS_LIBRARY_PATH
+CXXCPP'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
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+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir runstatedir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures gperftools 2.9.1 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/gperftools]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of gperftools 2.9.1:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
+  --enable-maintainer-mode
+                          enable make rules and dependencies not useful (and
+                          sometimes confusing) to the casual installer
+  --enable-dependency-tracking
+                          do not reject slow dependency extractors
+  --disable-dependency-tracking
+                          speeds up one-time build
+  --disable-cpu-profiler  do not build the cpu profiler
+  --disable-heap-profiler do not build the heap profiler
+  --disable-heap-checker  do not build the heap checker
+  --disable-debugalloc    do not build versions of libs with debugalloc
+  --enable-minimal        build only tcmalloc-minimal (and maybe
+                          tcmalloc-minimal-debug)
+  --enable-stacktrace-via-backtrace
+                          enable use of backtrace() for stacktrace capturing
+                          (may deadlock)
+  --enable-libunwind      enable libunwind linking
+  --enable-shared[=PKGS]  build shared libraries [default=yes]
+  --enable-static[=PKGS]  build static libraries [default=yes]
+  --enable-fast-install[=PKGS]
+                          optimize for fast installation [default=yes]
+  --disable-libtool-lock  avoid locking (might break parallel builds)
+  --enable-frame-pointers On x86_64 systems, compile with
+                          -fno-omit-frame-pointer (see INSTALL)
+  --disable-deprecated-pprof
+                          do not install old deprecated and unmaintained
+                          bundled pprof (see github.com/google/pprof for
+                          supported version)
+  --enable-dynamic-sized-delete-support
+                          try to build run-time switch for sized delete
+                          operator
+  --enable-sized-delete   build sized delete operator
+  --enable-emergency-malloc
+                          build emergency malloc feature
+  --enable-large-alloc-report
+                          report very large allocations to stderr
+  --enable-aggressive-decommit-by-default
+                          enable aggressive decommit by default
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-tcmalloc-pagesize
+                          Set the tcmalloc internal page size to 4K, 8K, 16K,
+                          32K, 64K, 128K or 256K
+  --with-tcmalloc-alignment
+                          Set the tcmalloc allocation alignment to 8 or 16
+                          bytes
+  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
+                          both]
+  --with-aix-soname=aix|svr4|both
+                          shared library versioning (aka "SONAME") variant to
+                          provide on AIX, [default=aix].
+  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-sysroot[=DIR]    Search for dependent libraries within DIR (or the
+                          compiler's sysroot if not specified).
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L if you have libraries in a
+              nonstandard directory 
+  LIBS        libraries to pass to the linker, e.g. -l
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I if
+              you have headers in a nonstandard directory 
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
+  CPP         C preprocessor
+  LT_SYS_LIBRARY_PATH
+              User-defined run-time library search path.
+  CXXCPP      C++ preprocessor
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to .
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+gperftools configure 2.9.1
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_cxx_try_compile LINENO
+# ----------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case  declares $2.
+   For example, HP-UX 11i  declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer  to  if __STDC__ is defined, since
+     exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_func
+
+# ac_fn_cxx_try_cpp LINENO
+# ------------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_cpp
+
+# ac_fn_cxx_try_link LINENO
+# -------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_link
+
+# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
+# -------------------------------------------
+# Tests whether TYPE exists after having included INCLUDES, setting cache
+# variable VAR accordingly.
+ac_fn_c_check_type ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof ($2))
+	 return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof (($2)))
+	    return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  eval "$3=yes"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_type
+
+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+( $as_echo "## ------------------------------------------ ##
+## Report this to gperftools@googlegroups.com ##
+## ------------------------------------------ ##"
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+# ---------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_c_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_decl
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by gperftools $as_me 2.9.1, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Update this value for every release!  (A:B:C will map to foo.so.(A-C).C.B)
+# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
+TCMALLOC_SO_VERSION=9:9:5
+PROFILER_SO_VERSION=5:4:5
+TCMALLOC_AND_PROFILER_SO_VERSION=10:4:6
+
+
+
+
+
+# The argument here is just something that should be in the current directory
+# (for sanity checking)
+
+
+ac_aux_dir=
+for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if ${ac_cv_build+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if ${ac_cv_host+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+am__api_version='1.16'
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+  ./ | .// | /[cC]/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    rm -rf conftest.one conftest.two conftest.dir
+	    echo one > conftest.one
+	    echo two > conftest.two
+	    mkdir conftest.dir
+	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+	      test -s conftest.one && test -s conftest.two &&
+	      test -s conftest.dir/conftest.one &&
+	      test -s conftest.dir/conftest.two
+	    then
+	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	      break 3
+	    fi
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+
+  done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+$as_echo_n "checking whether build environment is sane... " >&6; }
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[\\\"\#\$\&\'\`$am_lf]*)
+    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
+    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$*" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$*" != "X $srcdir/configure conftest.file" \
+	&& test "$*" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment" "$LINENO" 5
+     fi
+     if test "$2" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+
+rm -f conftest.file
+
+test "$program_prefix" != NONE &&
+  program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.
+# By default was `s,x,x', remove it if useless.
+ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
+program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
+
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
+
+if test x"${MISSING+set}" != xset; then
+  MISSING="\${SHELL} '$am_aux_dir/missing'"
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
+else
+  am_missing_run=
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
+$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+  if ${ac_cv_path_mkdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
+	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir (GNU coreutils) '* | \
+	     'mkdir (coreutils) '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+  done
+IFS=$as_save_IFS
+
+fi
+
+  test -d ./--version && rmdir ./--version
+  if test "${ac_cv_path_mkdir+set}" = set; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+$as_echo "$MKDIR_P" >&6; }
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AWK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  SET_MAKE=
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=1;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='gperftools'
+ VERSION='2.9.1'
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# 
+# 
+mkdir_p='$(MKDIR_P)'
+
+# We need awk for the "check" target (and possibly the TAP driver).  The
+# system "awk" is bad on some platforms.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
+
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar  pax cpio none'
+
+am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
+
+
+
+
+
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes.  So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: 
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: .
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
+  fi
+fi
+
+ac_config_headers="$ac_config_headers src/config.h"
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
+$as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
+    # Check whether --enable-maintainer-mode was given.
+if test "${enable_maintainer_mode+set}" = set; then :
+  enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval
+else
+  USE_MAINTAINER_MODE=no
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5
+$as_echo "$USE_MAINTAINER_MODE" >&6; }
+   if test $USE_MAINTAINER_MODE = yes; then
+  MAINTAINER_MODE_TRUE=
+  MAINTAINER_MODE_FALSE='#'
+else
+  MAINTAINER_MODE_TRUE='#'
+  MAINTAINER_MODE_FALSE=
+fi
+
+  MAINT=$MAINTAINER_MODE_TRUE
+
+
+# Export the version information (for tc_version and friends)
+TC_VERSION_MAJOR=`expr "$PACKAGE_VERSION" : '\([0-9]*\)'`
+TC_VERSION_MINOR=`expr "$PACKAGE_VERSION" : '[0-9]*\.\([0-9]*\)'`
+TC_VERSION_PATCH=`expr "$PACKAGE_VERSION" : '[0-9]*\.[0-9]*\(.*\)$'`
+
+
+
+
+
+
+	# Find git, defaulting to the 'missing' script so the user gets a nice
+	# message if git is missing, rather than a plain 'command not found'.
+	# Extract the first word of "git", so it can be a program name with args.
+set dummy git; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_GIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $GIT in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_GIT="$GIT" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_GIT="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_GIT" && ac_cv_path_GIT="${am_missing_run}git"
+  ;;
+esac
+fi
+GIT=$ac_cv_path_GIT
+if test -n "$GIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GIT" >&5
+$as_echo "$GIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+	# Build the ChangeLog rules.
+
+GENERATE_CHANGELOG_RULES='
+# Generate ChangeLog
+#
+# Optional:
+#  - CHANGELOG_START: git commit ID or tag name to output changelogs from
+#    (exclusive). (Default: include all commits)
+#  - CHANGELOG_GIT_FLAGS: General flags to pass to git-log when generating the
+#    ChangeLog. (Default: various)
+#  - CHANGELOG_GIT_DIR: .git directory to use. (Default: $(top_srcdir)/.git)
+
+# git-specific
+CHANGELOG_GIT_FLAGS ?= --stat -M -C --name-status --no-color
+CHANGELOG_GIT_DIR ?= $(top_srcdir)/.git
+
+ifeq ($(CHANGELOG_START),)
+CHANGELOG_GIT_RANGE =
+else
+CHANGELOG_GIT_RANGE = $(CHANGELOG_START)..
+endif
+
+# Generate a ChangeLog in $(top_distdir)
+dist-ChangeLog:
+	$(AM_V_GEN)if $(GIT) \
+		--git-dir=$(CHANGELOG_GIT_DIR) --work-tree=$(top_srcdir) log \
+		$(CHANGELOG_GIT_FLAGS) $(CHANGELOG_GIT_RANGE) \
+		| fmt --split-only >.ChangeLog.tmp; \
+	then mv -f .ChangeLog.tmp "$(top_distdir)/ChangeLog"; \
+	else rm -f .ChangeLog.tmp; exit 1; fi
+
+.PHONY: dist-ChangeLog
+'
+
+
+
+
+
+# The user can choose not to compile in the heap-profiler, the
+# heap-checker, or the cpu-profiler.  There's also the possibility
+# for a 'fully minimal' compile, which leaves out the stacktrace
+# code as well.  By default, we include all of these that the
+# target system supports.
+default_enable_cpu_profiler=yes
+default_enable_heap_profiler=yes
+default_enable_heap_checker=yes
+default_enable_debugalloc=yes
+default_enable_minimal=no
+default_tcmalloc_alignment=16
+need_nanosleep=yes   # Used later, to decide if to run ACX_NANOSLEEP
+case "$host" in
+   *-mingw*) default_enable_minimal=yes; default_enable_debugalloc=no;
+             need_nanosleep=no;;
+   *-cygwin*) default_enable_heap_checker=no; default_enable_cpu_profiler=no;;
+   *-freebsd*) default_enable_heap_checker=no;;
+   *-darwin*) default_enable_heap_checker=no;;
+esac
+
+# Currently only backtrace works on s390 and OSX.
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
+$as_echo_n "checking whether ${MAKE-make} supports the include directive... " >&6; }
+cat > confinc.mk << 'END'
+am__doit:
+	@echo this is the am__doit target >confinc.out
+.PHONY: am__doit
+END
+am__include="#"
+am__quote=
+# BSD make does it like this.
+echo '.include "confinc.mk" # ignored' > confmf.BSD
+# Other make implementations (GNU, Solaris 10, AIX) do it like this.
+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+  { echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
+   (${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+  case $?:`cat confinc.out 2>/dev/null` in #(
+  '0:this is the am__doit target') :
+    case $s in #(
+  BSD) :
+    am__include='.include' am__quote='"' ;; #(
+  *) :
+    am__include='include' am__quote='' ;;
+esac ;; #(
+  *) :
+     ;;
+esac
+  if test "$am__include" != "#"; then
+    _am_result="yes ($s style)"
+    break
+  fi
+done
+rm -f confinc.* confmf.*
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
+$as_echo "${_am_result}" >&6; }
+
+# Check whether --enable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then :
+  enableval=$enable_dependency_tracking;
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+  am__nodep='_no'
+fi
+ if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#include 
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
+$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
+if ${am_cv_prog_cc_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+  # Make sure it works both with $CC and with simple cc.
+  # Following AC_PROG_CC_C_O, we do the test twice because some
+  # compilers refuse to overwrite an existing .o file with -o,
+  # though they will create one.
+  am_cv_prog_cc_c_o=yes
+  for am_i in 1 2; do
+    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
+   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } \
+         && test -f conftest2.$ac_objext; then
+      : OK
+    else
+      am_cv_prog_cc_c_o=no
+      break
+    fi
+  done
+  rm -f core conftest*
+  unset am_i
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+$as_echo "$am_cv_prog_cc_c_o" >&6; }
+if test "$am_cv_prog_cc_c_o" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+depcc="$CC"   am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CC_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+#if !defined(__s390__) && !defined(__APPLE__)
+#error not s390 and not osx
+#endif
+return 1
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  default_enable_libunwind=no
+                   default_enable_backtrace=yes
+else
+  default_enable_libunwind=yes
+                   default_enable_backtrace=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+# Disable libunwind linking on ppc64 by default.
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return __PPC64__
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  default_enable_libunwind=no
+                   default_tcmalloc_pagesize=64
+else
+  default_enable_libunwind=yes
+                   default_tcmalloc_pagesize=8
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+# Check whether --enable-cpu-profiler was given.
+if test "${enable_cpu_profiler+set}" = set; then :
+  enableval=$enable_cpu_profiler;
+else
+  enable_cpu_profiler="$default_enable_cpu_profiler"
+fi
+
+# Check whether --enable-heap-profiler was given.
+if test "${enable_heap_profiler+set}" = set; then :
+  enableval=$enable_heap_profiler;
+else
+  enable_heap_profiler="$default_enable_heap_profiler"
+fi
+
+# Check whether --enable-heap-checker was given.
+if test "${enable_heap_checker+set}" = set; then :
+  enableval=$enable_heap_checker;
+else
+  enable_heap_checker="$default_enable_heap_checker"
+fi
+
+# Check whether --enable-debugalloc was given.
+if test "${enable_debugalloc+set}" = set; then :
+  enableval=$enable_debugalloc;
+else
+  enable_debugalloc="$default_enable_debugalloc"
+fi
+
+# Check whether --enable-minimal was given.
+if test "${enable_minimal+set}" = set; then :
+  enableval=$enable_minimal;
+else
+  enable_minimal="$default_enable_minimal"
+fi
+
+if test "$enable_minimal" = yes; then
+  enable_cpu_profiler=no
+  enable_heap_profiler=no
+  enable_heap_checker=no
+fi
+# Check whether --enable-stacktrace-via-backtrace was given.
+if test "${enable_stacktrace_via_backtrace+set}" = set; then :
+  enableval=$enable_stacktrace_via_backtrace; enable_backtrace=yes
+else
+  enable_backtrace="$default_enable_backtrace"
+fi
+
+# Check whether --enable-libunwind was given.
+if test "${enable_libunwind+set}" = set; then :
+  enableval=$enable_libunwind;
+else
+  enable_libunwind="$default_enable_libunwind"
+fi
+
+
+# Check whether --with-tcmalloc-pagesize was given.
+if test "${with_tcmalloc_pagesize+set}" = set; then :
+  withval=$with_tcmalloc_pagesize;
+else
+  with_tcmalloc_pagesize=$default_tcmalloc_pagesize
+fi
+
+
+# Check whether --with-tcmalloc-alignment was given.
+if test "${with_tcmalloc_alignment+set}" = set; then :
+  withval=$with_tcmalloc_alignment;
+else
+  with_tcmalloc_alignment=$default_tcmalloc_alignment
+fi
+
+
+case "$with_tcmalloc_pagesize" in
+  4)
+       $as_echo "#define TCMALLOC_PAGE_SIZE_SHIFT 12" >>confdefs.h
+;;
+  8)
+       #Default tcmalloc page size.
+       ;;
+  16)
+       $as_echo "#define TCMALLOC_PAGE_SIZE_SHIFT 14" >>confdefs.h
+;;
+  32)
+       $as_echo "#define TCMALLOC_PAGE_SIZE_SHIFT 15" >>confdefs.h
+;;
+  64)
+       $as_echo "#define TCMALLOC_PAGE_SIZE_SHIFT 16" >>confdefs.h
+;;
+  128)
+       $as_echo "#define TCMALLOC_PAGE_SIZE_SHIFT 17" >>confdefs.h
+;;
+  256)
+
+$as_echo "#define TCMALLOC_PAGE_SIZE_SHIFT 18" >>confdefs.h
+;;
+  *)
+       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ${with_tcmalloc_pagesize}K size not supported, using default tcmalloc page size." >&5
+$as_echo "$as_me: WARNING: ${with_tcmalloc_pagesize}K size not supported, using default tcmalloc page size." >&2;}
+esac
+case "$with_tcmalloc_alignment" in
+  8)
+
+$as_echo "#define TCMALLOC_ALIGN_8BYTES 1" >>confdefs.h
+;;
+  16)
+       #Default tcmalloc allocation alignment.
+       ;;
+  *)
+       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ${with_tcmalloc_alignment} bytes not supported, using default tcmalloc allocation alignment." >&5
+$as_echo "$as_me: WARNING: ${with_tcmalloc_alignment} bytes not supported, using default tcmalloc allocation alignment." >&2;}
+esac
+
+# Checks for programs.
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+  if test -n "$CCC"; then
+    CXX=$CCC
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+$as_echo "$ac_ct_CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CXX" && break
+done
+
+  if test "x$ac_ct_CXX" = x; then
+    CXX="g++"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CXX=$ac_ct_CXX
+  fi
+fi
+
+  fi
+fi
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
+$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
+if ${ac_cv_cxx_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GXX=yes
+else
+  GXX=
+fi
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+$as_echo_n "checking whether $CXX accepts -g... " >&6; }
+if ${ac_cv_prog_cxx_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+   ac_cxx_werror_flag=yes
+   ac_cv_prog_cxx_g=no
+   CXXFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+else
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+	 CXXFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+$as_echo "$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CXX"  am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CXX_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CXX_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CXX_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CXX_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CXX_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CXX_dependencies_compiler_type" >&6; }
+CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
+  am__fastdepCXX_TRUE=
+  am__fastdepCXX_FALSE='#'
+else
+  am__fastdepCXX_TRUE='#'
+  am__fastdepCXX_FALSE=
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#include 
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
+$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
+if ${am_cv_prog_cc_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+  # Make sure it works both with $CC and with simple cc.
+  # Following AC_PROG_CC_C_O, we do the test twice because some
+  # compilers refuse to overwrite an existing .o file with -o,
+  # though they will create one.
+  am_cv_prog_cc_c_o=yes
+  for am_i in 1 2; do
+    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
+   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } \
+         && test -f conftest2.$ac_objext; then
+      : OK
+    else
+      am_cv_prog_cc_c_o=no
+      break
+    fi
+  done
+  rm -f core conftest*
+  unset am_i
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+$as_echo "$am_cv_prog_cc_c_o" >&6; }
+if test "$am_cv_prog_cc_c_o" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+depcc="$CC"   am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CC_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer  to  if __STDC__ is defined, since
+  #  exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer  to  if __STDC__ is defined, since
+  #  exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ if test "$GCC" = yes; then
+  GCC_TRUE=
+  GCC_FALSE='#'
+else
+  GCC_TRUE='#'
+  GCC_FALSE=
+fi
+   # let the Makefile know if we're gcc
+      # shrug: autogen.sh suddenly needs this for some reason
+
+
+  ax_cxx_compile_alternatives="11 0x"    ax_cxx_compile_cxx11_required=true
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+  ac_success=no
+
+    if test x$ac_success = xno; then
+    for alternative in ${ax_cxx_compile_alternatives}; do
+      switch="-std=gnu++${alternative}"
+      cachevar=`$as_echo "ax_cv_cxx_compile_cxx11_$switch" | $as_tr_sh`
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++11 features with $switch" >&5
+$as_echo_n "checking whether $CXX supports C++11 features with $switch... " >&6; }
+if eval \${$cachevar+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_CXX="$CXX"
+         CXX="$CXX $switch"
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+// If the compiler admits that it is not ready for C++11, why torture it?
+// Hopefully, this will speed up the test.
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif __cplusplus < 201103L
+
+#error "This is not a C++11 compiler"
+
+#else
+
+namespace cxx11
+{
+
+  namespace test_static_assert
+  {
+
+    template 
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+  }
+
+  namespace test_final_override
+  {
+
+    struct Base
+    {
+      virtual void f() {}
+    };
+
+    struct Derived : public Base
+    {
+      virtual void f() override {}
+    };
+
+  }
+
+  namespace test_double_right_angle_brackets
+  {
+
+    template < typename T >
+    struct check {};
+
+    typedef check single_type;
+    typedef check> double_type;
+    typedef check>> triple_type;
+    typedef check>>> quadruple_type;
+
+  }
+
+  namespace test_decltype
+  {
+
+    int
+    f()
+    {
+      int a = 1;
+      decltype(a) b = 2;
+      return a + b;
+    }
+
+  }
+
+  namespace test_type_deduction
+  {
+
+    template < typename T1, typename T2 >
+    struct is_same
+    {
+      static const bool value = false;
+    };
+
+    template < typename T >
+    struct is_same
+    {
+      static const bool value = true;
+    };
+
+    template < typename T1, typename T2 >
+    auto
+    add(T1 a1, T2 a2) -> decltype(a1 + a2)
+    {
+      return a1 + a2;
+    }
+
+    int
+    test(const int c, volatile int v)
+    {
+      static_assert(is_same::value == true, "");
+      static_assert(is_same::value == false, "");
+      static_assert(is_same::value == false, "");
+      auto ac = c;
+      auto av = v;
+      auto sumi = ac + av + 'x';
+      auto sumf = ac + av + 1.0;
+      static_assert(is_same::value == true, "");
+      static_assert(is_same::value == true, "");
+      static_assert(is_same::value == true, "");
+      static_assert(is_same::value == false, "");
+      static_assert(is_same::value == true, "");
+      return (sumf > 0.0) ? sumi : add(c, v);
+    }
+
+  }
+
+  namespace test_noexcept
+  {
+
+    int f() { return 0; }
+    int g() noexcept { return 0; }
+
+    static_assert(noexcept(f()) == false, "");
+    static_assert(noexcept(g()) == true, "");
+
+  }
+
+  namespace test_constexpr
+  {
+
+    template < typename CharT >
+    unsigned long constexpr
+    strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
+    {
+      return *s ? strlen_c_r(s + 1, acc + 1) : acc;
+    }
+
+    template < typename CharT >
+    unsigned long constexpr
+    strlen_c(const CharT *const s) noexcept
+    {
+      return strlen_c_r(s, 0UL);
+    }
+
+    static_assert(strlen_c("") == 0UL, "");
+    static_assert(strlen_c("1") == 1UL, "");
+    static_assert(strlen_c("example") == 7UL, "");
+    static_assert(strlen_c("another\0example") == 7UL, "");
+
+  }
+
+  namespace test_rvalue_references
+  {
+
+    template < int N >
+    struct answer
+    {
+      static constexpr int value = N;
+    };
+
+    answer<1> f(int&)       { return answer<1>(); }
+    answer<2> f(const int&) { return answer<2>(); }
+    answer<3> f(int&&)      { return answer<3>(); }
+
+    void
+    test()
+    {
+      int i = 0;
+      const int c = 0;
+      static_assert(decltype(f(i))::value == 1, "");
+      static_assert(decltype(f(c))::value == 2, "");
+      static_assert(decltype(f(0))::value == 3, "");
+    }
+
+  }
+
+  namespace test_uniform_initialization
+  {
+
+    struct test
+    {
+      static const int zero {};
+      static const int one {1};
+    };
+
+    static_assert(test::zero == 0, "");
+    static_assert(test::one == 1, "");
+
+  }
+
+  namespace test_lambdas
+  {
+
+    void
+    test1()
+    {
+      auto lambda1 = [](){};
+      auto lambda2 = lambda1;
+      lambda1();
+      lambda2();
+    }
+
+    int
+    test2()
+    {
+      auto a = [](int i, int j){ return i + j; }(1, 2);
+      auto b = []() -> int { return '0'; }();
+      auto c = [=](){ return a + b; }();
+      auto d = [&](){ return c; }();
+      auto e = [a, &b](int x) mutable {
+        const auto identity = [](int y){ return y; };
+        for (auto i = 0; i < a; ++i)
+          a += b--;
+        return x + identity(a + b);
+      }(0);
+      return a + b + c + d + e;
+    }
+
+    int
+    test3()
+    {
+      const auto nullary = [](){ return 0; };
+      const auto unary = [](int x){ return x; };
+      using nullary_t = decltype(nullary);
+      using unary_t = decltype(unary);
+      const auto higher1st = [](nullary_t f){ return f(); };
+      const auto higher2nd = [unary](nullary_t f1){
+        return [unary, f1](unary_t f2){ return f2(unary(f1())); };
+      };
+      return higher1st(nullary) + higher2nd(nullary)(unary);
+    }
+
+  }
+
+  namespace test_variadic_templates
+  {
+
+    template 
+    struct sum;
+
+    template 
+    struct sum
+    {
+      static constexpr auto value = N0 + sum::value;
+    };
+
+    template <>
+    struct sum<>
+    {
+      static constexpr auto value = 0;
+    };
+
+    static_assert(sum<>::value == 0, "");
+    static_assert(sum<1>::value == 1, "");
+    static_assert(sum<23>::value == 23, "");
+    static_assert(sum<1, 2>::value == 3, "");
+    static_assert(sum<5, 5, 11>::value == 21, "");
+    static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");
+
+  }
+
+  // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
+  // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
+  // because of this.
+  namespace test_template_alias_sfinae
+  {
+
+    struct foo {};
+
+    template
+    using member = typename T::member_type;
+
+    template
+    void func(...) {}
+
+    template
+    void func(member*) {}
+
+    void test();
+
+    void test() { func(0); }
+
+  }
+
+}  // namespace cxx11
+
+#endif  // __cplusplus >= 201103L
+
+
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  eval $cachevar=yes
+else
+  eval $cachevar=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+         CXX="$ac_save_CXX"
+fi
+eval ac_res=\$$cachevar
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+      if eval test x\$$cachevar = xyes; then
+        CXX="$CXX $switch"
+        if test -n "$CXXCPP" ; then
+          CXXCPP="$CXXCPP $switch"
+        fi
+        ac_success=yes
+        break
+      fi
+    done
+  fi
+
+
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+  if test x$ax_cxx_compile_cxx11_required = xtrue; then
+    if test x$ac_success = xno; then
+      as_fn_error $? "*** A compiler with support for C++11 language features is required." "$LINENO" 5
+    fi
+  fi
+  if test x$ac_success = xno; then
+    HAVE_CXX11=0
+    { $as_echo "$as_me:${as_lineno-$LINENO}: No compiler with C++11 support was found" >&5
+$as_echo "$as_me: No compiler with C++11 support was found" >&6;}
+  else
+    HAVE_CXX11=1
+
+$as_echo "#define HAVE_CXX11 1" >>confdefs.h
+
+  fi
+
+
+
+# Check if we have an objcopy installed that supports -W
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objcopy", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objcopy; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJCOPY+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OBJCOPY"; then
+  ac_cv_prog_OBJCOPY="$OBJCOPY" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OBJCOPY="${ac_tool_prefix}objcopy"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJCOPY=$ac_cv_prog_OBJCOPY
+if test -n "$OBJCOPY"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJCOPY" >&5
+$as_echo "$OBJCOPY" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJCOPY"; then
+  ac_ct_OBJCOPY=$OBJCOPY
+  # Extract the first word of "objcopy", so it can be a program name with args.
+set dummy objcopy; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJCOPY+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OBJCOPY"; then
+  ac_cv_prog_ac_ct_OBJCOPY="$ac_ct_OBJCOPY" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OBJCOPY="objcopy"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJCOPY=$ac_cv_prog_ac_ct_OBJCOPY
+if test -n "$ac_ct_OBJCOPY"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJCOPY" >&5
+$as_echo "$ac_ct_OBJCOPY" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJCOPY" = x; then
+    OBJCOPY=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJCOPY=$ac_ct_OBJCOPY
+  fi
+else
+  OBJCOPY="$ac_cv_prog_OBJCOPY"
+fi
+
+if test -n "$OBJCOPY"; then :
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $OBJCOPY supports -W" >&5
+$as_echo_n "checking if $OBJCOPY supports -W... " >&6; }
+if ${gpt_cv_objcopy_weaken+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+void foo() {} int main() {return 0;}
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+        if "$OBJCOPY" -W foo conftest$ac_exeext /dev/null; then :
+  gpt_cv_objcopy_weaken=yes
+else
+  gpt_cv_objcopy_weaken=no
+fi
+else
+  gpt_cv_objcopy_weaken=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gpt_cv_objcopy_weaken" >&5
+$as_echo "$gpt_cv_objcopy_weaken" >&6; }
+else
+  gpt_cv_objcopy_weaken=no
+fi
+ if test $gpt_cv_objcopy_weaken = yes; then
+  HAVE_OBJCOPY_WEAKEN_TRUE=
+  HAVE_OBJCOPY_WEAKEN_FALSE='#'
+else
+  HAVE_OBJCOPY_WEAKEN_TRUE='#'
+  HAVE_OBJCOPY_WEAKEN_FALSE=
+fi
+
+
+case `pwd` in
+  *\ * | *\	*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
+$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
+esac
+
+
+
+macro_version='2.4.6'
+macro_revision='2.4.6'
+
+
+
+
+
+
+
+
+
+
+
+
+
+ltmain=$ac_aux_dir/ltmain.sh
+
+# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+
+ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
+$as_echo_n "checking how to print strings... " >&6; }
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO ""
+}
+
+case $ECHO in
+  printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5
+$as_echo "printf" >&6; } ;;
+  print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
+$as_echo "print -r" >&6; } ;;
+  *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: cat" >&5
+$as_echo "cat" >&6; } ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+$as_echo_n "checking for fgrep... " >&6; }
+if ${ac_cv_path_FGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+   then ac_cv_path_FGREP="$GREP -F"
+   else
+     if test -z "$FGREP"; then
+  ac_path_FGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in fgrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_FGREP" || continue
+# Check for GNU ac_path_FGREP and select it if it is found.
+  # Check for GNU $ac_path_FGREP
+case `"$ac_path_FGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'FGREP' >> "conftest.nl"
+    "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_FGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_FGREP="$ac_path_FGREP"
+      ac_path_FGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_FGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_FGREP"; then
+    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_FGREP=$FGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+$as_echo "$ac_cv_path_FGREP" >&6; }
+ FGREP="$ac_cv_path_FGREP"
+
+
+test -z "$GREP" && GREP=grep
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test yes = "$GCC"; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return, which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD=$ac_prog
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test yes = "$with_gnu_ld"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD=$ac_dir/$ac_prog
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 &5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 &5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
+$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
+if ${lt_cv_path_NM+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM=$NM
+else
+  lt_nm_to_check=${ac_tool_prefix}nm
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS=$lt_save_ifs
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm=$ac_dir/$lt_tmp_nm
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the 'sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	# MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+	case $build_os in
+	mingw*) lt_bad_file=conftest.nm/nofile ;;
+	*) lt_bad_file=/dev/null ;;
+	esac
+	case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+	*$lt_bad_file* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break 2
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break 2
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS=$lt_save_ifs
+  done
+  : ${lt_cv_path_NM=no}
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
+$as_echo "$lt_cv_path_NM" >&6; }
+if test no != "$lt_cv_path_NM"; then
+  NM=$lt_cv_path_NM
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in dumpbin "link -dump"
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DUMPBIN"; then
+  ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DUMPBIN=$ac_cv_prog_DUMPBIN
+if test -n "$DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
+$as_echo "$DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$DUMPBIN" && break
+  done
+fi
+if test -z "$DUMPBIN"; then
+  ac_ct_DUMPBIN=$DUMPBIN
+  for ac_prog in dumpbin "link -dump"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DUMPBIN"; then
+  ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
+if test -n "$ac_ct_DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
+$as_echo "$ac_ct_DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_DUMPBIN" && break
+done
+
+  if test "x$ac_ct_DUMPBIN" = x; then
+    DUMPBIN=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DUMPBIN=$ac_ct_DUMPBIN
+  fi
+fi
+
+    case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols -headers"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+
+  if test : != "$DUMPBIN"; then
+    NM=$DUMPBIN
+  fi
+fi
+test -z "$NM" && NM=nm
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
+$as_echo_n "checking the name lister ($NM) interface... " >&6; }
+if ${lt_cv_nm_interface+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: output\"" >&5)
+  cat conftest.out >&5
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
+$as_echo "$lt_cv_nm_interface" >&6; }
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+$as_echo_n "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+$as_echo "no, using $LN_S" >&6; }
+fi
+
+# find the maximum length of command line arguments
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
+$as_echo_n "checking the maximum length of command line arguments... " >&6; }
+if ${lt_cv_sys_max_cmd_len+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+    i=0
+  teststring=ABCD
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[	 ]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len" && \
+       test undefined != "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test X`env echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test 17 != "$i" # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+
+fi
+
+if test -n "$lt_cv_sys_max_cmd_len"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
+$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
+$as_echo "none" >&6; }
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+
+
+
+
+
+: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+
+
+
+
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
+$as_echo_n "checking how to convert $build file names to $host format... " >&6; }
+if ${lt_cv_to_host_file_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+
+fi
+
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
+$as_echo "$lt_cv_to_host_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
+$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; }
+if ${lt_cv_to_tool_file_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  #assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+
+fi
+
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
+$as_echo "$lt_cv_to_tool_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
+$as_echo_n "checking for $LD option to reload object files... " >&6; }
+if ${lt_cv_ld_reload_flag+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_reload_flag='-r'
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
+$as_echo "$lt_cv_ld_reload_flag" >&6; }
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    if test yes != "$GCC"; then
+      reload_cmds=false
+    fi
+    ;;
+  darwin*)
+    if test yes = "$GCC"; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+$as_echo "$OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+$as_echo "$ac_ct_OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
+$as_echo_n "checking how to recognize dependent libraries... " >&6; }
+if ${lt_cv_deplibs_check_method+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# 'unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[4-9]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[45]*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  if ( file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[3-9]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd* | netbsdelf*-gnu)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd* | bitrig*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+os2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
+$as_echo "$lt_cv_deplibs_check_method" >&6; }
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+$as_echo "$DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+  ac_ct_DLLTOOL=$DLLTOOL
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DLLTOOL"; then
+  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+$as_echo "$ac_ct_DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DLLTOOL" = x; then
+    DLLTOOL="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DLLTOOL=$ac_ct_DLLTOOL
+  fi
+else
+  DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
+$as_echo_n "checking how to associate runtime and link libraries... " >&6; }
+if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh;
+  # decide which one to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd=$ECHO
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
+$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in ar
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$AR" && break
+  done
+fi
+if test -z "$AR"; then
+  ac_ct_AR=$AR
+  for ac_prog in ar
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_AR" && break
+done
+
+  if test "x$ac_ct_AR" = x; then
+    AR="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+fi
+
+: ${AR=ar}
+: ${AR_FLAGS=cr}
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
+$as_echo_n "checking for archiver @FILE support... " >&6; }
+if ${lt_cv_ar_at_file+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ar_at_file=no
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5'
+      { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+      if test 0 -eq "$ac_status"; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	if test 0 -ne "$ac_status"; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
+$as_echo "$lt_cv_ar_at_file" >&6; }
+
+if test no = "$lt_cv_ar_at_file"; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+test -z "$STRIP" && STRIP=:
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+test -z "$RANLIB" && RANLIB=:
+
+
+
+
+
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  bitrig* | openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
+$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
+if ${lt_cv_sys_global_symbol_pipe+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*)
+  if test ia64 = "$host_cpu"; then
+    symcode='[ABCDEGRST]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[BCDEGRST]'
+  ;;
+osf*)
+  symcode='[BCDEGQRST]'
+  ;;
+solaris*)
+  symcode='[BDRT]'
+  ;;
+sco3.2v5*)
+  symcode='[DT]'
+  ;;
+sysv4.2uw2*)
+  symcode='[DT]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[ABDT]'
+  ;;
+sysv4)
+  symcode='[DFNSTU]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[ABCDGIRSTW]' ;;
+esac
+
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  # Gets list of data symbols to import.
+  lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
+  # Adjust the below global symbol transforms to fixup imported variables.
+  lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+  lt_c_name_hook=" -e 's/^I .* \(.*\)$/  {\"\1\", (void *) 0},/p'"
+  lt_c_name_lib_hook="\
+  -e 's/^I .* \(lib.*\)$/  {\"\1\", (void *) 0},/p'\
+  -e 's/^I .* \(.*\)$/  {\"lib\1\", (void *) 0},/p'"
+else
+  # Disable hooks by default.
+  lt_cv_sys_global_symbol_to_import=
+  lt_cdecl_hook=
+  lt_c_name_hook=
+  lt_c_name_lib_hook=
+fi
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/  {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"lib\1\", (void *) \&\1},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function,
+    # D for any global variable and I for any imported variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK '"\
+"     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+"     /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+"     /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+"     {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+"     s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[	 ]\($symcode$symcode*\)[	 ][	 ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    $ECHO "$as_me:$LINENO: $NM conftest.$ac_objext | $lt_cv_sys_global_symbol_pipe > $nlist" >&5
+    if eval "$NM" conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist 2>&5 && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS=conftstm.$ac_objext
+	  CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest$ac_exeext; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&5
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test yes = "$pipe_works"; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+
+fi
+
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
+$as_echo_n "checking for sysroot... " >&6; }
+
+# Check whether --with-sysroot was given.
+if test "${with_sysroot+set}" = set; then :
+  withval=$with_sysroot;
+else
+  with_sysroot=no
+fi
+
+
+lt_sysroot=
+case $with_sysroot in #(
+ yes)
+   if test yes = "$GCC"; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5
+$as_echo "$with_sysroot" >&6; }
+   as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
+   ;;
+esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
+$as_echo "${lt_sysroot:-no}" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5
+$as_echo_n "checking for a working dd... " >&6; }
+if ${ac_cv_path_lt_DD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+if test -z "$lt_DD"; then
+  ac_path_lt_DD_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in dd; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_lt_DD" || continue
+if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi
+      $ac_path_lt_DD_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_lt_DD"; then
+    :
+  fi
+else
+  ac_cv_path_lt_DD=$lt_DD
+fi
+
+rm -f conftest.i conftest2.i conftest.out
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5
+$as_echo "$ac_cv_path_lt_DD" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5
+$as_echo_n "checking how to truncate binary pipes... " >&6; }
+if ${lt_cv_truncate_bin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5
+$as_echo "$lt_cv_truncate_bin" >&6; }
+
+
+
+
+
+
+
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in $*""; do
+      case $cc_temp in
+        compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+        distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+# Check whether --enable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then :
+  enableval=$enable_libtool_lock;
+fi
+
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out what ABI is being produced by ac_compile, and set mode
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE=32
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE=64
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    if test yes = "$lt_cv_prog_gnu_ld"; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+mips64*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    emul=elf
+    case `/usr/bin/file conftest.$ac_objext` in
+      *32-bit*)
+	emul="${emul}32"
+	;;
+      *64-bit*)
+	emul="${emul}64"
+	;;
+    esac
+    case `/usr/bin/file conftest.$ac_objext` in
+      *MSB*)
+	emul="${emul}btsmip"
+	;;
+      *LSB*)
+	emul="${emul}ltsmip"
+	;;
+    esac
+    case `/usr/bin/file conftest.$ac_objext` in
+      *N32*)
+	emul="${emul}n32"
+	;;
+    esac
+    LD="${LD-ld} -m $emul"
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.  Note that the listed cases only cover the
+  # situations where additional linker options are needed (such as when
+  # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+  # vice versa); the common cases where no linker options are needed do
+  # not appear in the list.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    case `/usr/bin/file conftest.o` in
+	      *x86-64*)
+		LD="${LD-ld} -m elf32_x86_64"
+		;;
+	      *)
+		LD="${LD-ld} -m elf_i386"
+		;;
+	    esac
+	    ;;
+	  powerpc64le-*linux*)
+	    LD="${LD-ld} -m elf32lppclinux"
+	    ;;
+	  powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  powerpcle-*linux*)
+	    LD="${LD-ld} -m elf64lppc"
+	    ;;
+	  powerpc-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS=$CFLAGS
+  CFLAGS="$CFLAGS -belf"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
+$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
+if ${lt_cv_cc_needs_belf+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_cc_needs_belf=yes
+else
+  lt_cv_cc_needs_belf=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+     ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
+$as_echo "$lt_cv_cc_needs_belf" >&6; }
+  if test yes != "$lt_cv_cc_needs_belf"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS=$SAVE_CFLAGS
+  fi
+  ;;
+*-*solaris*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*)
+        case $host in
+        i?86-*-solaris*|x86_64-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD=${LD-ld}_sol2
+        fi
+        ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks=$enable_libtool_lock
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MANIFEST_TOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$MANIFEST_TOOL"; then
+  ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
+if test -n "$MANIFEST_TOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
+$as_echo "$MANIFEST_TOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
+  ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
+  # Extract the first word of "mt", so it can be a program name with args.
+set dummy mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_MANIFEST_TOOL"; then
+  ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
+if test -n "$ac_ct_MANIFEST_TOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
+$as_echo "$ac_ct_MANIFEST_TOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_MANIFEST_TOOL" = x; then
+    MANIFEST_TOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
+  fi
+else
+  MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL"
+fi
+
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
+$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
+if ${lt_cv_path_mainfest_tool+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&5
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
+$as_echo "$lt_cv_path_mainfest_tool" >&6; }
+if test yes != "$lt_cv_path_mainfest_tool"; then
+  MANIFEST_TOOL=:
+fi
+
+
+
+
+
+
+  case $host_os in
+    rhapsody* | darwin*)
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DSYMUTIL"; then
+  ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DSYMUTIL=$ac_cv_prog_DSYMUTIL
+if test -n "$DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
+$as_echo "$DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DSYMUTIL"; then
+  ac_ct_DSYMUTIL=$DSYMUTIL
+  # Extract the first word of "dsymutil", so it can be a program name with args.
+set dummy dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DSYMUTIL"; then
+  ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
+if test -n "$ac_ct_DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
+$as_echo "$ac_ct_DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DSYMUTIL" = x; then
+    DSYMUTIL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DSYMUTIL=$ac_ct_DSYMUTIL
+  fi
+else
+  DSYMUTIL="$ac_cv_prog_DSYMUTIL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
+set dummy ${ac_tool_prefix}nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NMEDIT"; then
+  ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+NMEDIT=$ac_cv_prog_NMEDIT
+if test -n "$NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
+$as_echo "$NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_NMEDIT"; then
+  ac_ct_NMEDIT=$NMEDIT
+  # Extract the first word of "nmedit", so it can be a program name with args.
+set dummy nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_NMEDIT"; then
+  ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_NMEDIT="nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
+if test -n "$ac_ct_NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
+$as_echo "$ac_ct_NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_NMEDIT" = x; then
+    NMEDIT=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    NMEDIT=$ac_ct_NMEDIT
+  fi
+else
+  NMEDIT="$ac_cv_prog_NMEDIT"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
+set dummy ${ac_tool_prefix}lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$LIPO"; then
+  ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LIPO=$ac_cv_prog_LIPO
+if test -n "$LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
+$as_echo "$LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_LIPO"; then
+  ac_ct_LIPO=$LIPO
+  # Extract the first word of "lipo", so it can be a program name with args.
+set dummy lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_LIPO"; then
+  ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_LIPO="lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
+if test -n "$ac_ct_LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
+$as_echo "$ac_ct_LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_LIPO" = x; then
+    LIPO=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    LIPO=$ac_ct_LIPO
+  fi
+else
+  LIPO="$ac_cv_prog_LIPO"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL"; then
+  ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL=$ac_cv_prog_OTOOL
+if test -n "$OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
+$as_echo "$OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL"; then
+  ac_ct_OTOOL=$OTOOL
+  # Extract the first word of "otool", so it can be a program name with args.
+set dummy otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL"; then
+  ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL="otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
+if test -n "$ac_ct_OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
+$as_echo "$ac_ct_OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL" = x; then
+    OTOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL=$ac_ct_OTOOL
+  fi
+else
+  OTOOL="$ac_cv_prog_OTOOL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL64"; then
+  ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL64=$ac_cv_prog_OTOOL64
+if test -n "$OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
+$as_echo "$OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL64"; then
+  ac_ct_OTOOL64=$OTOOL64
+  # Extract the first word of "otool64", so it can be a program name with args.
+set dummy otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL64"; then
+  ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL64="otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
+if test -n "$ac_ct_OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
+$as_echo "$ac_ct_OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL64" = x; then
+    OTOOL64=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL64=$ac_ct_OTOOL64
+  fi
+else
+  OTOOL64="$ac_cv_prog_OTOOL64"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
+$as_echo_n "checking for -single_module linker flag... " >&6; }
+if ${lt_cv_apple_cc_single_mod+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_apple_cc_single_mod=no
+      if test -z "$LT_MULTI_MODULE"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&5
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&5
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&5
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
+$as_echo "$lt_cv_apple_cc_single_mod" >&6; }
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
+$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
+if ${lt_cv_ld_exported_symbols_list+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_ld_exported_symbols_list=yes
+else
+  lt_cv_ld_exported_symbols_list=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
+$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
+$as_echo_n "checking for -force_load linker flag... " >&6; }
+if ${lt_cv_ld_force_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
+      echo "$AR cr libconftest.a conftest.o" >&5
+      $AR cr libconftest.a conftest.o 2>&5
+      echo "$RANLIB libconftest.a" >&5
+      $RANLIB libconftest.a 2>&5
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&5
+      elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&5
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
+$as_echo "$lt_cv_ld_force_load" >&6; }
+    case $host_os in
+    rhapsody* | darwin1.[012])
+      _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+    darwin*) # darwin 5.x on
+      # if running on 10.5 or later, the deployment target defaults
+      # to the OS version, if on x86, and 10.4, the deployment
+      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	10.0,*86*-darwin8*|10.0,*-darwin[912]*)
+	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+	10.[012][,.]*)
+	  _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+	10.*|11.*)
+	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test yes = "$lt_cv_apple_cc_single_mod"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test yes = "$lt_cv_ld_exported_symbols_list"; then
+      _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
+    fi
+    if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x$2 in
+    x)
+        ;;
+    *:)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+        ;;
+    x:*)
+        eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+        ;;
+    *)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#include 
+#include 
+#include 
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#include 
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+for ac_header in dlfcn.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
+"
+if test "x$ac_cv_header_dlfcn_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DLFCN_H 1
+_ACEOF
+
+fi
+
+done
+
+
+
+func_stripname_cnf ()
+{
+  case $2 in
+  .*) func_stripname_result=`$ECHO "$3" | $SED "s%^$1%%; s%\\\\$2\$%%"`;;
+  *)  func_stripname_result=`$ECHO "$3" | $SED "s%^$1%%; s%$2\$%%"`;;
+  esac
+} # func_stripname_cnf
+
+
+
+
+
+# Set options
+
+
+
+        enable_dlopen=no
+
+
+  enable_win32_dll=no
+
+
+            # Check whether --enable-shared was given.
+if test "${enable_shared+set}" = set; then :
+  enableval=$enable_shared; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else
+  enable_shared=yes
+fi
+
+
+
+
+
+
+
+
+
+  # Check whether --enable-static was given.
+if test "${enable_static+set}" = set; then :
+  enableval=$enable_static; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else
+  enable_static=yes
+fi
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-pic was given.
+if test "${with_pic+set}" = set; then :
+  withval=$with_pic; lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for lt_pkg in $withval; do
+	IFS=$lt_save_ifs
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else
+  pic_mode=default
+fi
+
+
+
+
+
+
+
+
+  # Check whether --enable-fast-install was given.
+if test "${enable_fast_install+set}" = set; then :
+  enableval=$enable_fast_install; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else
+  enable_fast_install=yes
+fi
+
+
+
+
+
+
+
+
+  shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[5-9]*,yes)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5
+$as_echo_n "checking which variant of shared library versioning to provide... " >&6; }
+
+# Check whether --with-aix-soname was given.
+if test "${with_aix_soname+set}" = set; then :
+  withval=$with_aix_soname; case $withval in
+    aix|svr4|both)
+      ;;
+    *)
+      as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5
+      ;;
+    esac
+    lt_cv_with_aix_soname=$with_aix_soname
+else
+  if ${lt_cv_with_aix_soname+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_with_aix_soname=aix
+fi
+
+    with_aix_soname=$lt_cv_with_aix_soname
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5
+$as_echo "$with_aix_soname" >&6; }
+  if test aix != "$with_aix_soname"; then
+    # For the AIX way of multilib, we name the shared archive member
+    # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+    # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+    # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+    # the AIX toolchain works better with OBJECT_MODE set (default 32).
+    if test 64 = "${OBJECT_MODE-32}"; then
+      shared_archive_member_spec=shr_64
+    else
+      shared_archive_member_spec=shr
+    fi
+  fi
+  ;;
+*)
+  with_aix_soname=aix
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS=$ltmain
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+test -z "$LN_S" && LN_S="ln -s"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
+$as_echo_n "checking for objdir... " >&6; }
+if ${lt_cv_objdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
+$as_echo "$lt_cv_objdir" >&6; }
+objdir=$lt_cv_objdir
+
+
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define LT_OBJDIR "$lt_cv_objdir/"
+_ACEOF
+
+
+
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test set != "${COLLECT_NAMES+set}"; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a '.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+old_CC=$CC
+old_CFLAGS=$CFLAGS
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
+
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
+$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD=$MAGIC_CMD
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/${ac_tool_prefix}file"; then
+      lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS=$lt_save_ifs
+  MAGIC_CMD=$lt_save_MAGIC_CMD
+  ;;
+esac
+fi
+
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
+$as_echo_n "checking for file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD=$MAGIC_CMD
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/file"; then
+      lt_cv_path_MAGIC_CMD=$ac_dir/"file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS=$lt_save_ifs
+  MAGIC_CMD=$lt_save_MAGIC_CMD
+  ;;
+esac
+fi
+
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  else
+    MAGIC_CMD=:
+  fi
+fi
+
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+
+lt_save_CC=$CC
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+objext=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+
+lt_prog_compiler_no_builtin_flag=
+
+if test yes = "$GCC"; then
+  case $cc_basename in
+  nvcc*)
+    lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
+  *)
+    lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
+  esac
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
+if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_rtti_exceptions=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="-fno-rtti -fno-exceptions"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_rtti_exceptions=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then
+    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
+else
+    :
+fi
+
+fi
+
+
+
+
+
+
+  lt_prog_compiler_wl=
+lt_prog_compiler_pic=
+lt_prog_compiler_static=
+
+
+  if test yes = "$GCC"; then
+    lt_prog_compiler_wl='-Wl,'
+    lt_prog_compiler_static='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      case $host_os in
+      os2*)
+	lt_prog_compiler_static='$wl-static'
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      lt_prog_compiler_wl='-Xlinker '
+      if test -n "$lt_prog_compiler_pic"; then
+        lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic"
+      fi
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl='-Wl,'
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      else
+	lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      case $cc_basename in
+      nagfor*)
+        # NAG Fortran compiler
+        lt_prog_compiler_wl='-Wl,-Wl,,'
+        lt_prog_compiler_pic='-PIC'
+        lt_prog_compiler_static='-Bstatic'
+        ;;
+      esac
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      case $host_os in
+      os2*)
+	lt_prog_compiler_static='$wl-static'
+	;;
+      esac
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static='$wl-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+      case $cc_basename in
+      # old Intel for x86_64, which still supported -KPIC.
+      ecc*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-KPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # flang / f18. f95 an alias for gfortran or flang on Debian
+      flang* | f18* | f95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='--shared'
+	lt_prog_compiler_static='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	lt_prog_compiler_wl='-Wl,-Wl,,'
+	lt_prog_compiler_pic='-PIC'
+	lt_prog_compiler_static='-Bstatic'
+	;;
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fpic'
+	lt_prog_compiler_static='-Bstatic'
+        ;;
+      ccc*)
+        lt_prog_compiler_wl='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-qpic'
+	lt_prog_compiler_static='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl=''
+	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Qoption ld '
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Wl,'
+	  ;;
+        *Intel*\ [CF]*Compiler*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fPIC'
+	  lt_prog_compiler_static='-static'
+	  ;;
+	*Portland\ Group*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fpic'
+	  lt_prog_compiler_static='-Bstatic'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    rdos*)
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	lt_prog_compiler_wl='-Qoption ld ';;
+      *)
+	lt_prog_compiler_wl='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl='-Qoption ld '
+      lt_prog_compiler_pic='-PIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic='-Kconform_pic'
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    unicos*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_can_build_shared=no
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic='-pic'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared=no
+      ;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms that do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic=
+    ;;
+  *)
+    lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
+$as_echo "$lt_cv_prog_compiler_pic" >&6; }
+lt_prog_compiler_pic=$lt_cv_prog_compiler_pic
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic -DPIC"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_pic_works"; then
+    case $lt_prog_compiler_pic in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
+     esac
+else
+    lt_prog_compiler_pic=
+     lt_prog_compiler_can_build_shared=no
+fi
+
+fi
+
+
+
+
+
+
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
+$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_static_works"; then
+    :
+else
+    lt_prog_compiler_static=
+fi
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+hard_links=nottested
+if test no = "$lt_cv_prog_compiler_c_o" && test no != "$need_locks"; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test no = "$hard_links"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  runpath_var=
+  allow_undefined_flag=
+  always_export_symbols=no
+  archive_cmds=
+  archive_expsym_cmds=
+  compiler_needs_object=no
+  enable_shared_with_static_runtimes=no
+  export_dynamic_flag_spec=
+  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  hardcode_automatic=no
+  hardcode_direct=no
+  hardcode_direct_absolute=no
+  hardcode_libdir_flag_spec=
+  hardcode_libdir_separator=
+  hardcode_minus_L=no
+  hardcode_shlibpath_var=unsupported
+  inherit_rpath=no
+  link_all_deplibs=unknown
+  module_cmds=
+  module_expsym_cmds=
+  old_archive_from_new_cmds=
+  old_archive_from_expsyms_cmds=
+  thread_safe_flag_spec=
+  whole_archive_flag_spec=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ' (' and ')$', so one must not match beginning or
+  # end of line.  Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+  # as well as any symbol that contains 'd'.
+  exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test yes != "$GCC"; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd* | bitrig*)
+    with_gnu_ld=no
+    ;;
+  linux* | k*bsd*-gnu | gnu*)
+    link_all_deplibs=no
+    ;;
+  esac
+
+  ld_shlibs=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test yes = "$with_gnu_ld"; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;;
+	  *\ \(GNU\ Binutils\)\ [3-9]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test yes = "$lt_use_gnu_ld_interface"; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='$wl'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+    export_dynamic_flag_spec='$wl--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      whole_archive_flag_spec=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+    else
+      whole_archive_flag_spec=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v | $SED -e 's/(^)\+)\s\+//' 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[3-9]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test ia64 != "$host_cpu"; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	allow_undefined_flag=unsupported
+	# Joseph Beckenbach  says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec='-L$libdir'
+      export_dynamic_flag_spec='$wl--export-all-symbols'
+      allow_undefined_flag=unsupported
+      always_export_symbols=no
+      enable_shared_with_static_runtimes=yes
+      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file, use it as
+	# is; otherwise, prepend EXPORTS...
+	archive_expsym_cmds='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+          cp $export_symbols $output_objdir/$soname.def;
+        else
+          echo EXPORTS > $output_objdir/$soname.def;
+          cat $export_symbols >> $output_objdir/$soname.def;
+        fi~
+        $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    haiku*)
+      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      link_all_deplibs=yes
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      shrext_cmds=.dll
+      archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      enable_shared_with_static_runtimes=yes
+      ;;
+
+    interix[3-9]*)
+      hardcode_direct=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+      export_dynamic_flag_spec='$wl-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      archive_expsym_cmds='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test linux-dietlibc = "$host_os"; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test no = "$tmp_diet"
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  whole_archive_flag_spec=
+	  tmp_sharedflag='--shared' ;;
+        nagfor*)                        # NAGFOR 5.3
+          tmp_sharedflag='-Wl,-shared' ;;
+	xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  compiler_needs_object=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  whole_archive_flag_spec='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  compiler_needs_object=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+
+        if test yes = "$supports_anon_versioning"; then
+          archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+            cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+            echo "local: *; };" >> $output_objdir/$libname.ver~
+            $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	tcc*)
+	  export_dynamic_flag_spec='-rdynamic'
+	  ;;
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
+	  hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+	  archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test yes = "$supports_anon_versioning"; then
+	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+              cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+              echo "local: *; };" >> $output_objdir/$libname.ver~
+              $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        ld_shlibs=no
+      fi
+      ;;
+
+    netbsd* | netbsdelf*-gnu)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    ld_shlibs=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+    esac
+
+    if test no = "$ld_shlibs"; then
+      runpath_var=
+      hardcode_libdir_flag_spec=
+      export_dynamic_flag_spec=
+      whole_archive_flag_spec=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag=unsupported
+      always_export_symbols=yes
+      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L=yes
+      if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	hardcode_direct=unsupported
+      fi
+      ;;
+
+    aix[4-9]*)
+      if test ia64 = "$host_cpu"; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to GNU nm, but means don't demangle to AIX nm.
+	# Without the "-l" option, or with the "-B" option, AIX nm treats
+	# weak defined symbols like other global defined symbols, whereas
+	# GNU nm marks them as "W".
+	# While the 'weak' keyword is ignored in the Export File, we need
+	# it in the Import File for the 'aix-soname' feature, so we have
+	# to replace the "-B" option with "-P" for AIX nm.
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+	else
+	  export_symbols_cmds='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# have runtime linking enabled, and use it for executables.
+	# For shared libraries, we enable/disable runtime linking
+	# depending on the kind of the shared library created -
+	# when "with_aix_soname,aix_use_runtimelinking" is:
+	# "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "aix,yes"  lib.so          shared, rtl:yes, for executables
+	#            lib.a           static archive
+	# "both,no"  lib.so.V(shr.o) shared, rtl:yes
+	#            lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a(lib.so.V) shared, rtl:no
+	# "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a           static archive
+	case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	    # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	    # so we don't have lib.a shared libs to link our executables.
+	    # We have to force runtime linking in this case.
+	    aix_use_runtimelinking=yes
+	    LDFLAGS="$LDFLAGS -Wl,-brtl"
+	  fi
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds=''
+      hardcode_direct=yes
+      hardcode_direct_absolute=yes
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      file_list_spec='$wl-f,'
+      case $with_aix_soname,$aix_use_runtimelinking in
+      aix,*) ;; # traditional, no import file
+      svr4,* | *,yes) # use import file
+	# The Import File defines what to hardcode.
+	hardcode_direct=no
+	hardcode_direct_absolute=no
+	;;
+      esac
+
+      if test yes = "$GCC"; then
+	case $host_os in aix4.[012]|aix4.[012].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  hardcode_direct=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  hardcode_minus_L=yes
+	  hardcode_libdir_flag_spec='-L$libdir'
+	  hardcode_libdir_separator=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test yes = "$aix_use_runtimelinking"; then
+	  shared_flag="$shared_flag "'$wl-G'
+	fi
+	# Need to ensure runtime linking is disabled for the traditional
+	# shared library, or the linker may eventually find shared libraries
+	# /with/ Import File - we do not want to mix them.
+	shared_flag_aix='-shared'
+	shared_flag_svr4='-shared $wl-G'
+      else
+	# not using gcc
+	if test ia64 = "$host_cpu"; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag='$wl-G'
+	  else
+	    shared_flag='$wl-bM:SRE'
+	  fi
+	  shared_flag_aix='$wl-bM:SRE'
+	  shared_flag_svr4='$wl-G'
+	fi
+      fi
+
+      export_dynamic_flag_spec='$wl-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols=yes
+      if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	allow_undefined_flag='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath_+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+        hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+        archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+      else
+	if test ia64 = "$host_cpu"; then
+	  hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib'
+	  allow_undefined_flag="-z nodefs"
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath_+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+	 hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  no_undefined_flag=' $wl-bernotok'
+	  allow_undefined_flag=' $wl-berok'
+	  if test yes = "$with_gnu_ld"; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    whole_archive_flag_spec='$convenience'
+	  fi
+	  archive_cmds_need_lc=yes
+	  archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	  # -brtl affects multiple linker settings, -berok does not and is overridden later
+	  compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
+	  if test svr4 != "$with_aix_soname"; then
+	    # This is similar to how AIX traditionally builds its shared libraries.
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	  fi
+	  if test aix != "$with_aix_soname"; then
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	  else
+	    # used by -dlpreopen to get the symbols
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	  fi
+	  archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[45]*)
+      export_dynamic_flag_spec=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl*)
+	# Native MSVC
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	always_export_symbols=yes
+	file_list_spec='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	archive_expsym_cmds='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+            cp "$export_symbols" "$output_objdir/$soname.def";
+            echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+          else
+            $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+          fi~
+          $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+          linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, )='true'
+	enable_shared_with_static_runtimes=yes
+	exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+	export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	old_postinstall_cmds='chmod 644 $oldlib'
+	postlink_cmds='lt_outputfile="@OUTPUT@"~
+          lt_tool_outputfile="@TOOL_OUTPUT@"~
+          case $lt_outputfile in
+            *.exe|*.EXE) ;;
+            *)
+              lt_outputfile=$lt_outputfile.exe
+              lt_tool_outputfile=$lt_tool_outputfile.exe
+              ;;
+          esac~
+          if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+            $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+            $RM "$lt_outputfile.manifest";
+          fi'
+	;;
+      *)
+	# Assume MSVC wrapper
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	old_archive_from_new_cmds='true'
+	# FIXME: Should let the user specify the lib program.
+	old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	enable_shared_with_static_runtimes=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc=no
+  hardcode_direct=no
+  hardcode_automatic=yes
+  hardcode_shlibpath_var=unsupported
+  if test yes = "$lt_cv_ld_force_load"; then
+    whole_archive_flag_spec='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+  else
+    whole_archive_flag_spec=''
+  fi
+  link_all_deplibs=yes
+  allow_undefined_flag=$_lt_dar_allow_undefined
+  case $cc_basename in
+     ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test yes = "$_lt_dar_can_shared"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+    module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+    archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+    module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+
+  else
+  ld_shlibs=no
+  fi
+
+      ;;
+
+    dgux*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2.*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    hpux9*)
+      if test yes = "$GCC"; then
+	archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      else
+	archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+      hardcode_libdir_separator=:
+      hardcode_direct=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L=yes
+      export_dynamic_flag_spec='$wl-E'
+      ;;
+
+    hpux10*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test no = "$with_gnu_ld"; then
+	hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+	hardcode_libdir_separator=:
+	hardcode_direct=yes
+	hardcode_direct_absolute=yes
+	export_dynamic_flag_spec='$wl-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	hardcode_minus_L=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
+$as_echo_n "checking if $CC understands -b... " >&6; }
+if ${lt_cv_prog_compiler__b+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler__b=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS -b"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler__b=yes
+       fi
+     else
+       lt_cv_prog_compiler__b=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
+$as_echo "$lt_cv_prog_compiler__b" >&6; }
+
+if test yes = "$lt_cv_prog_compiler__b"; then
+    archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+else
+    archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+fi
+
+	  ;;
+	esac
+      fi
+      if test no = "$with_gnu_ld"; then
+	hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+	hardcode_libdir_separator=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  hardcode_direct=no
+	  hardcode_shlibpath_var=no
+	  ;;
+	*)
+	  hardcode_direct=yes
+	  hardcode_direct_absolute=yes
+	  export_dynamic_flag_spec='$wl-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  hardcode_minus_L=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
+$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
+if ${lt_cv_irix_exported_symbol+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  save_LDFLAGS=$LDFLAGS
+	   LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo (void) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_irix_exported_symbol=yes
+else
+  lt_cv_irix_exported_symbol=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+           LDFLAGS=$save_LDFLAGS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
+$as_echo "$lt_cv_irix_exported_symbol" >&6; }
+	if test yes = "$lt_cv_irix_exported_symbol"; then
+          archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
+	fi
+	link_all_deplibs=no
+      else
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      inherit_rpath=yes
+      link_all_deplibs=yes
+      ;;
+
+    linux*)
+      case $cc_basename in
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	ld_shlibs=yes
+	archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	;;
+      esac
+      ;;
+
+    netbsd* | netbsdelf*-gnu)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    newsos6)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      hardcode_shlibpath_var=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd* | bitrig*)
+      if test -f /usr/libexec/ld.so; then
+	hardcode_direct=yes
+	hardcode_shlibpath_var=no
+	hardcode_direct_absolute=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+	  hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+	  export_dynamic_flag_spec='$wl-E'
+	else
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+	fi
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      shrext_cmds=.dll
+      archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      enable_shared_with_static_runtimes=yes
+      ;;
+
+    osf3*)
+      if test yes = "$GCC"; then
+	allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test yes = "$GCC"; then
+	allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+	archive_cmds='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+          $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	hardcode_libdir_flag_spec='-rpath $libdir'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_separator=:
+      ;;
+
+    solaris*)
+      no_undefined_flag=' -z defs'
+      if test yes = "$GCC"; then
+	wlarc='$wl'
+	archive_cmds='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+          $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  archive_cmds='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='$wl'
+	  archive_cmds='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_shlibpath_var=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands '-z linker_flag'.  GCC discards it without '$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test yes = "$GCC"; then
+	  whole_archive_flag_spec='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+	else
+	  whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      link_all_deplibs=yes
+      ;;
+
+    sunos4*)
+      if test sequent = "$host_vendor"; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	archive_cmds='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  reload_cmds='$CC -r -o $output$reload_objs'
+	  hardcode_direct=no
+        ;;
+	motorola)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var=no
+      export_dynamic_flag_spec='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	hardcode_shlibpath_var=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	ld_shlibs=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag='$wl-z,text'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We CANNOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      no_undefined_flag='$wl-z,text'
+      allow_undefined_flag='$wl-z,nodefs'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='$wl-R,$libdir'
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      export_dynamic_flag_spec='$wl-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      ld_shlibs=no
+      ;;
+    esac
+
+    if test sni = "$host_vendor"; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	export_dynamic_flag_spec='$wl-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
+$as_echo "$ld_shlibs" >&6; }
+test no = "$ld_shlibs" && can_build_shared=no
+
+with_gnu_ld=$with_gnu_ld
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc=yes
+
+  if test yes,yes = "$GCC,$enable_shared"; then
+    case $archive_cmds in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl
+	  pic_flag=$lt_prog_compiler_pic
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag
+	  allow_undefined_flag=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc=no
+	  else
+	    lt_cv_archive_cmds_need_lc=yes
+	  fi
+	  allow_undefined_flag=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc" >&6; }
+      archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
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+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+if test yes = "$GCC"; then
+  case $host_os in
+    darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+    *) lt_awk_arg='/^libraries:/' ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq='s|=\([A-Za-z]:\)|\1|g' ;;
+    *) lt_sed_strip_eq='s|=/|/|g' ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary...
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  # ...but if some path component already ends with the multilib dir we assume
+  # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+  case "$lt_multi_os_dir; $lt_search_path_spec " in
+  "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+    lt_multi_os_dir=
+    ;;
+  esac
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+    elif test -n "$lt_multi_os_dir"; then
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS = " "; FS = "/|\n";} {
+  lt_foo = "";
+  lt_count = 0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo = "/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[lt_foo]++; }
+  if (lt_freq[lt_foo] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's|/\([A-Za-z]:\)|\1|g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='$libname$release$shared_ext$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test ia64 = "$host_cpu"; then
+    # AIX 5 supports IA64
+    library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line '#! .'.  This would cause the generated library to
+    # depend on '.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # Using Import Files as archive members, it is possible to support
+    # filename-based versioning of shared library archives on AIX. While
+    # this would work for both with and without runtime linking, it will
+    # prevent static linking of such archives. So we do filename-based
+    # shared library versioning with .so extension only, which is used
+    # when both runtime linking and shared linking is enabled.
+    # Unfortunately, runtime linking may impact performance, so we do
+    # not want this to be the default eventually. Also, we use the
+    # versioned .so libs for executables only if there is the -brtl
+    # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+    # To allow for filename-based versioning support, we need to create
+    # libNAME.so.V as an archive file, containing:
+    # *) an Import File, referring to the versioned filename of the
+    #    archive as well as the shared archive member, telling the
+    #    bitwidth (32 or 64) of that shared object, and providing the
+    #    list of exported symbols of that shared object, eventually
+    #    decorated with the 'weak' keyword
+    # *) the shared object with the F_LOADONLY flag set, to really avoid
+    #    it being seen by the linker.
+    # At run time we better use the real file rather than another symlink,
+    # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+    case $with_aix_soname,$aix_use_runtimelinking in
+    # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    aix,yes) # traditional libtool
+      dynamic_linker='AIX unversionable lib.so'
+      # If using run time linking (on AIX 4.2 or later) use lib.so
+      # instead of lib.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      ;;
+    aix,no) # traditional AIX only
+      dynamic_linker='AIX lib.a(lib.so.V)'
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      ;;
+    svr4,*) # full svr4 only
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,yes) # both, prefer svr4
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # unpreferred sharedlib libNAME.a needs extra handling
+      postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+      postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,no) # both, prefer aix
+      dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+      postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+      postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+      ;;
+    esac
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='$libname$shared_ext'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+    library_names_spec='$libname.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec=$LIB
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$major$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      soname_spec='$libname$release$shared_ext$major'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    if test 32 = "$HPUX_IA64_MODE"; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+    fi
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test yes = "$lt_cv_prog_gnu_ld"; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+  sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+linux*android*)
+  version_type=none # Android doesn't support versioned libraries.
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext'
+  soname_spec='$libname$release$shared_ext'
+  finish_cmds=
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  dynamic_linker='Android linker'
+  # Don't embed -rpath directories since the linker doesn't support them.
+  hardcode_libdir_flag_spec='-L$libdir'
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Ideally, we could use ldconfig to report *all* directores which are
+  # searched for libraries, however this is still not possible.  Aside from not
+  # being certain /sbin/ldconfig is available, command
+  # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+  # even though it is searched at run-time.  Try to do the best guess by
+  # appending ld.so.conf contents (and includes) to the search path.
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsdelf*-gnu)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='NetBSD ld.elf_so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd* | bitrig*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec=/usr/lib
+  need_lib_prefix=no
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    need_version=no
+  else
+    need_version=yes
+  fi
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+os2*)
+  libname_spec='$name'
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+  # OS/2 can only load a DLL with a base name of 8 characters or less.
+  soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+    v=$($ECHO $release$versuffix | tr -d .-);
+    n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+    $ECHO $n$v`$shared_ext'
+  library_names_spec='${libname}_dll.$libext'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=BEGINLIBPATH
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  postinstall_cmds='base_file=`basename \$file`~
+    dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+    dldir=$destdir/`dirname \$dlpath`~
+    test -d \$dldir || mkdir -p \$dldir~
+    $install_prog $dir/$dlname \$dldir/$dlname~
+    chmod a+x \$dldir/$dlname~
+    if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+      eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+    fi'
+  postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+    dlpath=$dir/\$dldll~
+    $RM \$dlpath'
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test yes = "$with_gnu_ld"; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec; then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+    soname_spec='$libname$shared_ext.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=sco
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test yes = "$with_gnu_ld"; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+  sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+  sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" ||
+   test -n "$runpath_var" ||
+   test yes = "$hardcode_automatic"; then
+
+  # We can hardcode non-existent directories.
+  if test no != "$hardcode_direct" &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" &&
+     test no != "$hardcode_minus_L"; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
+$as_echo "$hardcode_action" >&6; }
+
+if test relink = "$hardcode_action" ||
+   test yes = "$inherit_rpath"; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+     test no = "$enable_shared"; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+  if test yes != "$enable_dlopen"; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen=load_add_on
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen=LoadLibrary
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+    # if libdl is installed we need to link against it
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
+else
+
+    lt_cv_dlopen=dyld
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+
+fi
+
+    ;;
+
+  tpf*)
+    # Don't try to run any link tests for TPF.  We know it's impossible
+    # because TPF is a cross-compiler, and we know how we open DSOs.
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=no
+    ;;
+
+  *)
+    ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
+if test "x$ac_cv_func_shl_load" = xyes; then :
+  lt_cv_dlopen=shl_load
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
+$as_echo_n "checking for shl_load in -ldld... " >&6; }
+if ${ac_cv_lib_dld_shl_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load ();
+int
+main ()
+{
+return shl_load ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_shl_load=yes
+else
+  ac_cv_lib_dld_shl_load=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
+$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
+if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
+  lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld
+else
+  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+if test "x$ac_cv_func_dlopen" = xyes; then :
+  lt_cv_dlopen=dlopen
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
+$as_echo_n "checking for dlopen in -lsvld... " >&6; }
+if ${ac_cv_lib_svld_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_svld_dlopen=yes
+else
+  ac_cv_lib_svld_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
+$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
+if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
+$as_echo_n "checking for dld_link in -ldld... " >&6; }
+if ${ac_cv_lib_dld_dld_link+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link ();
+int
+main ()
+{
+return dld_link ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_dld_link=yes
+else
+  ac_cv_lib_dld_dld_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
+$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
+if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
+  lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+  esac
+
+  if test no = "$lt_cv_dlopen"; then
+    enable_dlopen=no
+  else
+    enable_dlopen=yes
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS=$CPPFLAGS
+    test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS=$LDFLAGS
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS=$LIBS
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
+$as_echo_n "checking whether a program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test yes = "$cross_compiling"; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include 
+#endif
+
+#include 
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
+$as_echo "$lt_cv_dlopen_self" >&6; }
+
+    if test yes = "$lt_cv_dlopen_self"; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
+$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self_static+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test yes = "$cross_compiling"; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include 
+#endif
+
+#include 
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
+$as_echo "$lt_cv_dlopen_self_static" >&6; }
+    fi
+
+    CPPFLAGS=$save_CPPFLAGS
+    LDFLAGS=$save_LDFLAGS
+    LIBS=$save_LIBS
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+striplib=
+old_striplib=
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
+$as_echo_n "checking whether stripping libraries is possible... " >&6; }
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP"; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    fi
+    ;;
+  *)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+  # Report what library types will actually be built
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
+$as_echo_n "checking if libtool supports shared libraries... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
+$as_echo "$can_build_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
+$as_echo_n "checking whether to build shared libraries... " >&6; }
+  test no = "$can_build_shared" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test yes = "$enable_shared" && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[4-9]*)
+    if test ia64 != "$host_cpu"; then
+      case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+      yes,aix,yes) ;;			# shared object as lib.so file only
+      yes,svr4,*) ;;			# shared object as lib.so archive member only
+      yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+      esac
+    fi
+    ;;
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
+$as_echo "$enable_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
+$as_echo_n "checking whether to build static libraries... " >&6; }
+  # Make sure either enable_shared or enable_static is yes.
+  test yes = "$enable_shared" || enable_static=yes
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
+$as_echo "$enable_static" >&6; }
+
+
+
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC=$lt_save_CC
+
+      if test -n "$CXX" && ( test no != "$CXX" &&
+    ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
+    (test g++ != "$CXX"))); then
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+  if ${ac_cv_prog_CXXCPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CXXCPP needs to be expanded
+    for CXXCPP in "$CXX -E" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer  to  if __STDC__ is defined, since
+  #  exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CXXCPP=$CXXCPP
+
+fi
+  CXXCPP=$ac_cv_prog_CXXCPP
+else
+  ac_cv_prog_CXXCPP=$CXXCPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
+ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer  to  if __STDC__ is defined, since
+  #  exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include 
+#else
+# include 
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+else
+  _lt_caught_CXX_error=yes
+fi
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+archive_cmds_need_lc_CXX=no
+allow_undefined_flag_CXX=
+always_export_symbols_CXX=no
+archive_expsym_cmds_CXX=
+compiler_needs_object_CXX=no
+export_dynamic_flag_spec_CXX=
+hardcode_direct_CXX=no
+hardcode_direct_absolute_CXX=no
+hardcode_libdir_flag_spec_CXX=
+hardcode_libdir_separator_CXX=
+hardcode_minus_L_CXX=no
+hardcode_shlibpath_var_CXX=unsupported
+hardcode_automatic_CXX=no
+inherit_rpath_CXX=no
+module_cmds_CXX=
+module_expsym_cmds_CXX=
+link_all_deplibs_CXX=unknown
+old_archive_cmds_CXX=$old_archive_cmds
+reload_flag_CXX=$reload_flag
+reload_cmds_CXX=$reload_cmds
+no_undefined_flag_CXX=
+whole_archive_flag_spec_CXX=
+enable_shared_with_static_runtimes_CXX=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+objext_CXX=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_caught_CXX_error"; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+  # save warnings/boilerplate of simple test code
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_CFLAGS=$CFLAGS
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  CFLAGS=$CXXFLAGS
+  compiler=$CC
+  compiler_CXX=$CC
+  func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
+
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test yes = "$GXX"; then
+      lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin'
+    else
+      lt_prog_compiler_no_builtin_flag_CXX=
+    fi
+
+    if test yes = "$GXX"; then
+      # Set up default GNU C++ configuration
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test yes = "$GCC"; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return, which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD=$ac_prog
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test yes = "$with_gnu_ld"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD=$ac_dir/$ac_prog
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 &5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 &5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test yes = "$with_gnu_ld"; then
+        archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+        archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+
+        hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+        export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='$wl'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+        else
+          whole_archive_flag_spec_CXX=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+    ld_shlibs_CXX=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+      aix[4-9]*)
+        if test ia64 = "$host_cpu"; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # have runtime linking enabled, and use it for executables.
+          # For shared libraries, we enable/disable runtime linking
+          # depending on the kind of the shared library created -
+          # when "with_aix_soname,aix_use_runtimelinking" is:
+          # "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+          # "aix,yes"  lib.so          shared, rtl:yes, for executables
+          #            lib.a           static archive
+          # "both,no"  lib.so.V(shr.o) shared, rtl:yes
+          #            lib.a(lib.so.V) shared, rtl:no,  for executables
+          # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+          #            lib.a(lib.so.V) shared, rtl:no
+          # "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+          #            lib.a           static archive
+          case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	      # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	      # so we don't have lib.a shared libs to link our executables.
+	      # We have to force runtime linking in this case.
+	      aix_use_runtimelinking=yes
+	      LDFLAGS="$LDFLAGS -Wl,-brtl"
+	    fi
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        archive_cmds_CXX=''
+        hardcode_direct_CXX=yes
+        hardcode_direct_absolute_CXX=yes
+        hardcode_libdir_separator_CXX=':'
+        link_all_deplibs_CXX=yes
+        file_list_spec_CXX='$wl-f,'
+        case $with_aix_soname,$aix_use_runtimelinking in
+        aix,*) ;;	# no import file
+        svr4,* | *,yes) # use import file
+          # The Import File defines what to hardcode.
+          hardcode_direct_CXX=no
+          hardcode_direct_absolute_CXX=no
+          ;;
+        esac
+
+        if test yes = "$GXX"; then
+          case $host_os in aix4.[012]|aix4.[012].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    hardcode_direct_CXX=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    hardcode_minus_L_CXX=yes
+	    hardcode_libdir_flag_spec_CXX='-L$libdir'
+	    hardcode_libdir_separator_CXX=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag=$shared_flag' $wl-G'
+	  fi
+	  # Need to ensure runtime linking is disabled for the traditional
+	  # shared library, or the linker may eventually find shared libraries
+	  # /with/ Import File - we do not want to mix them.
+	  shared_flag_aix='-shared'
+	  shared_flag_svr4='-shared $wl-G'
+        else
+          # not using gcc
+          if test ia64 = "$host_cpu"; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test yes = "$aix_use_runtimelinking"; then
+	      shared_flag='$wl-G'
+	    else
+	      shared_flag='$wl-bM:SRE'
+	    fi
+	    shared_flag_aix='$wl-bM:SRE'
+	    shared_flag_svr4='$wl-G'
+          fi
+        fi
+
+        export_dynamic_flag_spec_CXX='$wl-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        always_export_symbols_CXX=yes
+	if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          # The "-G" linker flag allows undefined symbols.
+          no_undefined_flag_CXX='-bernotok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath__CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+          hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath"
+
+          archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+        else
+          if test ia64 = "$host_cpu"; then
+	    hardcode_libdir_flag_spec_CXX='$wl-R $libdir:/usr/lib:/lib'
+	    allow_undefined_flag_CXX="-z nodefs"
+	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath__CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+	    hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    no_undefined_flag_CXX=' $wl-bernotok'
+	    allow_undefined_flag_CXX=' $wl-berok'
+	    if test yes = "$with_gnu_ld"; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      whole_archive_flag_spec_CXX='$wl--whole-archive$convenience $wl--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      whole_archive_flag_spec_CXX='$convenience'
+	    fi
+	    archive_cmds_need_lc_CXX=yes
+	    archive_expsym_cmds_CXX='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	    # -brtl affects multiple linker settings, -berok does not and is overridden later
+	    compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
+	    if test svr4 != "$with_aix_soname"; then
+	      # This is similar to how AIX traditionally builds its shared
+	      # libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
+	      archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	    fi
+	    if test aix != "$with_aix_soname"; then
+	      archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	    else
+	      # used by -dlpreopen to get the symbols
+	      archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	    fi
+	    archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$RM -r $output_objdir/$realname.d'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  allow_undefined_flag_CXX=unsupported
+	  # Joseph Beckenbach  says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  ld_shlibs_CXX=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+	case $GXX,$cc_basename in
+	,cl* | no,cl*)
+	  # Native MSVC
+	  # hardcode_libdir_flag_spec is actually meaningless, as there is
+	  # no search path for DLLs.
+	  hardcode_libdir_flag_spec_CXX=' '
+	  allow_undefined_flag_CXX=unsupported
+	  always_export_symbols_CXX=yes
+	  file_list_spec_CXX='@'
+	  # Tell ltmain to make .lib files, not .a files.
+	  libext=lib
+	  # Tell ltmain to make .dll files, not .so files.
+	  shrext_cmds=.dll
+	  # FIXME: Setting linknames here is a bad hack.
+	  archive_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	  archive_expsym_cmds_CXX='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+              cp "$export_symbols" "$output_objdir/$soname.def";
+              echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+            else
+              $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+            fi~
+            $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+            linknames='
+	  # The linker will not automatically build a static lib if we build a DLL.
+	  # _LT_TAGVAR(old_archive_from_new_cmds, CXX)='true'
+	  enable_shared_with_static_runtimes_CXX=yes
+	  # Don't use ranlib
+	  old_postinstall_cmds_CXX='chmod 644 $oldlib'
+	  postlink_cmds_CXX='lt_outputfile="@OUTPUT@"~
+            lt_tool_outputfile="@TOOL_OUTPUT@"~
+            case $lt_outputfile in
+              *.exe|*.EXE) ;;
+              *)
+                lt_outputfile=$lt_outputfile.exe
+                lt_tool_outputfile=$lt_tool_outputfile.exe
+                ;;
+            esac~
+            func_to_tool_file "$lt_outputfile"~
+            if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+              $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+              $RM "$lt_outputfile.manifest";
+            fi'
+	  ;;
+	*)
+	  # g++
+	  # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless,
+	  # as there is no search path for DLLs.
+	  hardcode_libdir_flag_spec_CXX='-L$libdir'
+	  export_dynamic_flag_spec_CXX='$wl--export-all-symbols'
+	  allow_undefined_flag_CXX=unsupported
+	  always_export_symbols_CXX=no
+	  enable_shared_with_static_runtimes_CXX=yes
+
+	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+	    archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	    # If the export-symbols file already is a .def file, use it as
+	    # is; otherwise, prepend EXPORTS...
+	    archive_expsym_cmds_CXX='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+              cp $export_symbols $output_objdir/$soname.def;
+            else
+              echo EXPORTS > $output_objdir/$soname.def;
+              cat $export_symbols >> $output_objdir/$soname.def;
+            fi~
+            $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	  else
+	    ld_shlibs_CXX=no
+	  fi
+	  ;;
+	esac
+	;;
+      darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc_CXX=no
+  hardcode_direct_CXX=no
+  hardcode_automatic_CXX=yes
+  hardcode_shlibpath_var_CXX=unsupported
+  if test yes = "$lt_cv_ld_force_load"; then
+    whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+  else
+    whole_archive_flag_spec_CXX=''
+  fi
+  link_all_deplibs_CXX=yes
+  allow_undefined_flag_CXX=$_lt_dar_allow_undefined
+  case $cc_basename in
+     ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test yes = "$_lt_dar_can_shared"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+    module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+    archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+    module_expsym_cmds_CXX="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+       if test yes != "$lt_cv_apple_cc_single_mod"; then
+      archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
+      archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
+    fi
+
+  else
+  ld_shlibs_CXX=no
+  fi
+
+	;;
+
+      os2*)
+	hardcode_libdir_flag_spec_CXX='-L$libdir'
+	hardcode_minus_L_CXX=yes
+	allow_undefined_flag_CXX=unsupported
+	shrext_cmds=.dll
+	archive_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	  $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	  $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	  $ECHO EXPORTS >> $output_objdir/$libname.def~
+	  emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	  $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	  emximp -o $lib $output_objdir/$libname.def'
+	archive_expsym_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	  $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	  $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	  $ECHO EXPORTS >> $output_objdir/$libname.def~
+	  prefix_cmds="$SED"~
+	  if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	    prefix_cmds="$prefix_cmds -e 1d";
+	  fi~
+	  prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	  cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	  $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	  emximp -o $lib $output_objdir/$libname.def'
+	old_archive_From_new_cmds_CXX='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+	enable_shared_with_static_runtimes_CXX=yes
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      freebsd2.*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        ld_shlibs_CXX=no
+        ;;
+
+      freebsd-elf*)
+        archive_cmds_need_lc_CXX=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        ld_shlibs_CXX=yes
+        ;;
+
+      haiku*)
+        archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+        link_all_deplibs_CXX=yes
+        ;;
+
+      hpux9*)
+        hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir'
+        hardcode_libdir_separator_CXX=:
+        export_dynamic_flag_spec_CXX='$wl-E'
+        hardcode_direct_CXX=yes
+        hardcode_minus_L_CXX=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            ld_shlibs_CXX=no
+            ;;
+          aCC*)
+            archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test yes = "$GXX"; then
+              archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              ld_shlibs_CXX=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test no = "$with_gnu_ld"; then
+	  hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir'
+	  hardcode_libdir_separator_CXX=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      export_dynamic_flag_spec_CXX='$wl-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            hardcode_direct_CXX=no
+            hardcode_shlibpath_var_CXX=no
+            ;;
+          *)
+            hardcode_direct_CXX=yes
+            hardcode_direct_absolute_CXX=yes
+            hardcode_minus_L_CXX=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        archive_cmds_CXX='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test yes = "$GXX"; then
+	      if test no = "$with_gnu_ld"; then
+	        case $host_cpu in
+	          hppa*64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[3-9]*)
+	hardcode_direct_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	export_dynamic_flag_spec_CXX='$wl-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	archive_expsym_cmds_CXX='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test yes = "$GXX"; then
+	      if test no = "$with_gnu_ld"; then
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	      else
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
+	      fi
+	    fi
+	    link_all_deplibs_CXX=yes
+	    ;;
+        esac
+        hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+        hardcode_libdir_separator_CXX=:
+        inherit_rpath_CXX=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+	    archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        archive_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    archive_cmds_need_lc_CXX=no
+	    hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+	    whole_archive_flag_spec_CXX='$wl--whole-archive$convenience $wl--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [1-5].* | *pgcpp\ [1-5].*)
+	      prelink_cmds_CXX='tpldir=Template.dir~
+               rm -rf $tpldir~
+               $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+               compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      old_archive_cmds_CXX='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+                $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+                $RANLIB $oldlib'
+	      archive_cmds_CXX='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+                $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	      archive_expsym_cmds_CXX='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+                $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	      archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    hardcode_libdir_flag_spec_CXX='$wl--rpath $wl$libdir'
+	    export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+	    whole_archive_flag_spec_CXX='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	    archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname  -o $lib $wl-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+	    export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+	    archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    if test yes = "$supports_anon_versioning"; then
+	      archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~
+                cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+                echo "local: *; };" >> $output_objdir/$libname.ver~
+                $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      no_undefined_flag_CXX=' -zdefs'
+	      archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      archive_expsym_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
+	      hardcode_libdir_flag_spec_CXX='-R$libdir'
+	      whole_archive_flag_spec_CXX='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	      compiler_needs_object_CXX=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	ld_shlibs_CXX=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  archive_cmds_CXX='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  hardcode_libdir_flag_spec_CXX='-R$libdir'
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        ld_shlibs_CXX=yes
+	;;
+
+      openbsd* | bitrig*)
+	if test -f /usr/libexec/ld.so; then
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	  hardcode_direct_absolute_CXX=yes
+	  archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
+	    archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
+	    export_dynamic_flag_spec_CXX='$wl-E'
+	    whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+	    hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        allow_undefined_flag_CXX=' $wl-expect_unresolved $wl\*'
+	        archive_cmds_CXX='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	        hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+		;;
+	      *)
+	        allow_undefined_flag_CXX=' -expect_unresolved \*'
+	        archive_cmds_CXX='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	        archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+                  echo "-hidden">> $lib.exp~
+                  $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
+                  $RM $lib.exp'
+	        hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+		;;
+	    esac
+
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test yes,no = "$GXX,$with_gnu_ld"; then
+	      allow_undefined_flag_CXX=' $wl-expect_unresolved $wl\*'
+	      case $host in
+	        osf3*)
+	          archive_cmds_CXX='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+		  ;;
+	        *)
+	          archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+	      hardcode_libdir_separator_CXX=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            archive_cmds_need_lc_CXX=yes
+	    no_undefined_flag_CXX=' -zdefs'
+	    archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+              $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    hardcode_libdir_flag_spec_CXX='-R$libdir'
+	    hardcode_shlibpath_var_CXX=no
+	    case $host_os in
+	      solaris2.[0-5] | solaris2.[0-5].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands '-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    link_all_deplibs_CXX=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test yes,no = "$GXX,$with_gnu_ld"; then
+	      no_undefined_flag_CXX=' $wl-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+                  $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
+	      else
+	        # g++ 2.7 appears to require '-G' NOT '-shared' on this
+	        # platform.
+	        archive_cmds_CXX='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+                  $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
+	      fi
+
+	      hardcode_libdir_flag_spec_CXX='$wl-R $wl$libdir'
+	      case $host_os in
+		solaris2.[0-5] | solaris2.[0-5].*) ;;
+		*)
+		  whole_archive_flag_spec_CXX='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag_CXX='$wl-z,text'
+      archive_cmds_need_lc_CXX=no
+      hardcode_shlibpath_var_CXX=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We CANNOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	no_undefined_flag_CXX='$wl-z,text'
+	allow_undefined_flag_CXX='$wl-z,nodefs'
+	archive_cmds_need_lc_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='$wl-R,$libdir'
+	hardcode_libdir_separator_CXX=':'
+	link_all_deplibs_CXX=yes
+	export_dynamic_flag_spec_CXX='$wl-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~
+              '"$old_archive_cmds_CXX"
+	    reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~
+              '"$reload_cmds_CXX"
+	    ;;
+	  *)
+	    archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+    esac
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+    test no = "$ld_shlibs_CXX" && can_build_shared=no
+
+    GCC_CXX=$GXX
+    LD_CXX=$LD
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    # Dependencies to place before and after the object being linked:
+predep_objects_CXX=
+postdep_objects_CXX=
+predeps_CXX=
+postdeps_CXX=
+compiler_lib_search_path_CXX=
+
+cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
+esac
+
+if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case $prev$p in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test x-L = "$p" ||
+          test x-R = "$p"; then
+	 prev=$p
+	 continue
+       fi
+
+       # Expand the sysroot to ease extracting the directories later.
+       if test -z "$prev"; then
+         case $p in
+         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+         esac
+       fi
+       case $p in
+       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+       esac
+       if test no = "$pre_test_object_deps_done"; then
+	 case $prev in
+	 -L | -R)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$compiler_lib_search_path_CXX"; then
+	     compiler_lib_search_path_CXX=$prev$p
+	   else
+	     compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} $prev$p"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$postdeps_CXX"; then
+	   postdeps_CXX=$prev$p
+	 else
+	   postdeps_CXX="${postdeps_CXX} $prev$p"
+	 fi
+       fi
+       prev=
+       ;;
+
+    *.lto.$objext) ;; # Ignore GCC LTO objects
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test no = "$pre_test_object_deps_done"; then
+	 if test -z "$predep_objects_CXX"; then
+	   predep_objects_CXX=$p
+	 else
+	   predep_objects_CXX="$predep_objects_CXX $p"
+	 fi
+       else
+	 if test -z "$postdep_objects_CXX"; then
+	   postdep_objects_CXX=$p
+	 else
+	   postdep_objects_CXX="$postdep_objects_CXX $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling CXX test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+case $host_os in
+interix[3-9]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  predep_objects_CXX=
+  postdep_objects_CXX=
+  postdeps_CXX=
+  ;;
+esac
+
+
+case " $postdeps_CXX " in
+*" -lc "*) archive_cmds_need_lc_CXX=no ;;
+esac
+ compiler_lib_search_dirs_CXX=
+if test -n "${compiler_lib_search_path_CXX}"; then
+ compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | $SED -e 's! -L! !g' -e 's!^ !!'`
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    lt_prog_compiler_wl_CXX=
+lt_prog_compiler_pic_CXX=
+lt_prog_compiler_static_CXX=
+
+
+  # C++ specific cases for pic, static, wl, etc.
+  if test yes = "$GXX"; then
+    lt_prog_compiler_wl_CXX='-Wl,'
+    lt_prog_compiler_static_CXX='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static_CXX='-Bstatic'
+      fi
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic_CXX='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+      case $host_os in
+      os2*)
+	lt_prog_compiler_static_CXX='$wl-static'
+	;;
+      esac
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic_CXX='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      lt_prog_compiler_pic_CXX=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static_CXX=
+      ;;
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic_CXX=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	lt_prog_compiler_pic_CXX='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic_CXX='-fPIC -shared'
+      ;;
+    *)
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[4-9]*)
+	# All AIX code is PIC.
+	if test ia64 = "$host_cpu"; then
+	  # AIX 5 now supports IA64 processor
+	  lt_prog_compiler_static_CXX='-Bstatic'
+	else
+	  lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      mingw* | cygwin* | os2* | pw32* | cegcc*)
+	# This hack is so that the source file can tell whether it is being
+	# built for inclusion in a dll (and should export symbols for example).
+	lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='$wl-a ${wl}archive'
+	    if test ia64 != "$host_cpu"; then
+	      lt_prog_compiler_pic_CXX='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='$wl-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      lt_prog_compiler_pic_CXX='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64, which still supported -KPIC.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fpic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[cC]* | mpixl[cC]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-qpic'
+	    lt_prog_compiler_static_CXX='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      lt_prog_compiler_pic_CXX='-KPIC'
+	      lt_prog_compiler_static_CXX='-Bstatic'
+	      lt_prog_compiler_wl_CXX='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    lt_prog_compiler_pic_CXX='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd* | netbsdelf*-gnu)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        lt_prog_compiler_pic_CXX='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    lt_prog_compiler_wl_CXX='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    lt_prog_compiler_pic_CXX='-pic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	lt_prog_compiler_can_build_shared_CXX=no
+	;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms that do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic_CXX=
+    ;;
+  *)
+    lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC"
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_CXX" >&6; }
+lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works_CXX=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works_CXX=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works_CXX" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_pic_works_CXX"; then
+    case $lt_prog_compiler_pic_CXX in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
+     esac
+else
+    lt_prog_compiler_pic_CXX=
+     lt_prog_compiler_can_build_shared_CXX=no
+fi
+
+fi
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works_CXX=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works_CXX=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works_CXX=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_static_works_CXX" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_static_works_CXX"; then
+    :
+else
+    lt_prog_compiler_static_CXX=
+fi
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+
+hard_links=nottested
+if test no = "$lt_cv_prog_compiler_c_o_CXX" && test no != "$need_locks"; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test no = "$hard_links"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  exclude_expsyms_CXX='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  case $host_os in
+  aix[4-9]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+    # Without the "-l" option, or with the "-B" option, AIX nm treats
+    # weak defined symbols like other global defined symbols, whereas
+    # GNU nm marks them as "W".
+    # While the 'weak' keyword is ignored in the Export File, we need
+    # it in the Import File for the 'aix-soname' feature, so we have
+    # to replace the "-B" option with "-P" for AIX nm.
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+    else
+      export_symbols_cmds_CXX='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    export_symbols_cmds_CXX=$ltdll_cmds
+    ;;
+  cygwin* | mingw* | cegcc*)
+    case $cc_basename in
+    cl*)
+      exclude_expsyms_CXX='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+      ;;
+    *)
+      export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms_CXX='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+      ;;
+    esac
+    ;;
+  linux* | k*bsd*-gnu | gnu*)
+    link_all_deplibs_CXX=no
+    ;;
+  *)
+    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+    ;;
+  esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+test no = "$ld_shlibs_CXX" && can_build_shared=no
+
+with_gnu_ld_CXX=$with_gnu_ld
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_CXX" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc_CXX=yes
+
+  if test yes,yes = "$GCC,$enable_shared"; then
+    case $archive_cmds_CXX in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl_CXX
+	  pic_flag=$lt_prog_compiler_pic_CXX
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag_CXX
+	  allow_undefined_flag_CXX=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc_CXX=no
+	  else
+	    lt_cv_archive_cmds_need_lc_CXX=yes
+	  fi
+	  allow_undefined_flag_CXX=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
+      archive_cmds_need_lc_CXX=$lt_cv_archive_cmds_need_lc_CXX
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='$libname$release$shared_ext$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test ia64 = "$host_cpu"; then
+    # AIX 5 supports IA64
+    library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line '#! .'.  This would cause the generated library to
+    # depend on '.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # Using Import Files as archive members, it is possible to support
+    # filename-based versioning of shared library archives on AIX. While
+    # this would work for both with and without runtime linking, it will
+    # prevent static linking of such archives. So we do filename-based
+    # shared library versioning with .so extension only, which is used
+    # when both runtime linking and shared linking is enabled.
+    # Unfortunately, runtime linking may impact performance, so we do
+    # not want this to be the default eventually. Also, we use the
+    # versioned .so libs for executables only if there is the -brtl
+    # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+    # To allow for filename-based versioning support, we need to create
+    # libNAME.so.V as an archive file, containing:
+    # *) an Import File, referring to the versioned filename of the
+    #    archive as well as the shared archive member, telling the
+    #    bitwidth (32 or 64) of that shared object, and providing the
+    #    list of exported symbols of that shared object, eventually
+    #    decorated with the 'weak' keyword
+    # *) the shared object with the F_LOADONLY flag set, to really avoid
+    #    it being seen by the linker.
+    # At run time we better use the real file rather than another symlink,
+    # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+    case $with_aix_soname,$aix_use_runtimelinking in
+    # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    aix,yes) # traditional libtool
+      dynamic_linker='AIX unversionable lib.so'
+      # If using run time linking (on AIX 4.2 or later) use lib.so
+      # instead of lib.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      ;;
+    aix,no) # traditional AIX only
+      dynamic_linker='AIX lib.a(lib.so.V)'
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      ;;
+    svr4,*) # full svr4 only
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,yes) # both, prefer svr4
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # unpreferred sharedlib libNAME.a needs extra handling
+      postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+      postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,no) # both, prefer aix
+      dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+      postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+      postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+      ;;
+    esac
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='$libname$shared_ext'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+    library_names_spec='$libname.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec=$LIB
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$major$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      soname_spec='$libname$release$shared_ext$major'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    if test 32 = "$HPUX_IA64_MODE"; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+    fi
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test yes = "$lt_cv_prog_gnu_ld"; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+  sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+linux*android*)
+  version_type=none # Android doesn't support versioned libraries.
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext'
+  soname_spec='$libname$release$shared_ext'
+  finish_cmds=
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  dynamic_linker='Android linker'
+  # Don't embed -rpath directories since the linker doesn't support them.
+  hardcode_libdir_flag_spec_CXX='-L$libdir'
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Ideally, we could use ldconfig to report *all* directores which are
+  # searched for libraries, however this is still not possible.  Aside from not
+  # being certain /sbin/ldconfig is available, command
+  # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+  # even though it is searched at run-time.  Try to do the best guess by
+  # appending ld.so.conf contents (and includes) to the search path.
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsdelf*-gnu)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='NetBSD ld.elf_so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd* | bitrig*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec=/usr/lib
+  need_lib_prefix=no
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    need_version=no
+  else
+    need_version=yes
+  fi
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+os2*)
+  libname_spec='$name'
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+  # OS/2 can only load a DLL with a base name of 8 characters or less.
+  soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+    v=$($ECHO $release$versuffix | tr -d .-);
+    n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+    $ECHO $n$v`$shared_ext'
+  library_names_spec='${libname}_dll.$libext'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=BEGINLIBPATH
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  postinstall_cmds='base_file=`basename \$file`~
+    dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+    dldir=$destdir/`dirname \$dlpath`~
+    test -d \$dldir || mkdir -p \$dldir~
+    $install_prog $dir/$dlname \$dldir/$dlname~
+    chmod a+x \$dldir/$dlname~
+    if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+      eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+    fi'
+  postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+    dlpath=$dir/\$dldll~
+    $RM \$dlpath'
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test yes = "$with_gnu_ld"; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec; then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+    soname_spec='$libname$shared_ext.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=sco
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test yes = "$with_gnu_ld"; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+  sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+  sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action_CXX=
+if test -n "$hardcode_libdir_flag_spec_CXX" ||
+   test -n "$runpath_var_CXX" ||
+   test yes = "$hardcode_automatic_CXX"; then
+
+  # We can hardcode non-existent directories.
+  if test no != "$hardcode_direct_CXX" &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" &&
+     test no != "$hardcode_minus_L_CXX"; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action_CXX=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action_CXX=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action_CXX=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
+$as_echo "$hardcode_action_CXX" >&6; }
+
+if test relink = "$hardcode_action_CXX" ||
+   test yes = "$inherit_rpath_CXX"; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+     test no = "$enable_shared"; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test yes != "$_lt_caught_CXX_error"
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+        ac_config_commands="$ac_config_commands libtool"
+
+
+
+
+# Only expand once:
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __attribute__" >&5
+$as_echo_n "checking for __attribute__... " >&6; }
+  if ${ac_cv___attribute__+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+       static void foo(void) __attribute__ ((unused));
+       void foo(void) { exit(1); }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv___attribute__=yes
+else
+  ac_cv___attribute__=no
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+  if test "$ac_cv___attribute__" = "yes"; then
+
+$as_echo "#define HAVE___ATTRIBUTE__ 1" >>confdefs.h
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv___attribute__" >&5
+$as_echo "$ac_cv___attribute__" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __attribute__((aligned(N))) on functions" >&5
+$as_echo_n "checking for __attribute__((aligned(N))) on functions... " >&6; }
+if ${ac_cv___attribute__aligned_fn+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+     void foo(void) __attribute__((aligned(128)));
+     void foo(void) { exit(1); }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv___attribute__aligned_fn=yes
+else
+  ac_cv___attribute__aligned_fn=no
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+if test "$ac_cv___attribute__aligned_fn" = "yes"; then
+
+$as_echo "#define HAVE___ATTRIBUTE__ALIGNED_FN 1" >>confdefs.h
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv___attribute__aligned_fn" >&5
+$as_echo "$ac_cv___attribute__aligned_fn" >&6; }
+
+
+# Check whether some low-level functions/files are available
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#include 
+#include 
+#include 
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#include 
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+
+# TODO(csilvers): we could remove a lot when WITH_CPU_PROFILER etc is "no".
+ac_fn_c_check_type "$LINENO" "struct mallinfo" "ac_cv_type_struct_mallinfo" "#include 
+"
+if test "x$ac_cv_type_struct_mallinfo" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_STRUCT_MALLINFO 1
+_ACEOF
+
+
+fi
+
+ac_fn_c_check_type "$LINENO" "Elf32_Versym" "ac_cv_type_Elf32_Versym" "#include 
+"
+if test "x$ac_cv_type_Elf32_Versym" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_ELF32_VERSYM 1
+_ACEOF
+
+
+fi
+   # for vdso_support.h
+for ac_func in sbrk
+do :
+  ac_fn_c_check_func "$LINENO" "sbrk" "ac_cv_func_sbrk"
+if test "x$ac_cv_func_sbrk" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SBRK 1
+_ACEOF
+
+fi
+done
+            # for tcmalloc to get memory
+for ac_func in __sbrk
+do :
+  ac_fn_c_check_func "$LINENO" "__sbrk" "ac_cv_func___sbrk"
+if test "x$ac_cv_func___sbrk" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE___SBRK 1
+_ACEOF
+
+fi
+done
+          # for tcmalloc to get memory
+for ac_func in geteuid
+do :
+  ac_fn_c_check_func "$LINENO" "geteuid" "ac_cv_func_geteuid"
+if test "x$ac_cv_func_geteuid" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_GETEUID 1
+_ACEOF
+
+fi
+done
+         # for turning off services when run as root
+for ac_func in fork
+do :
+  ac_fn_c_check_func "$LINENO" "fork" "ac_cv_func_fork"
+if test "x$ac_cv_func_fork" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FORK 1
+_ACEOF
+
+fi
+done
+            # for the pthread_atfork setup
+for ac_header in features.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "features.h" "ac_cv_header_features_h" "$ac_includes_default"
+if test "x$ac_cv_header_features_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FEATURES_H 1
+_ACEOF
+
+fi
+
+done
+    # for vdso_support.h, __GLIBC__ macros
+for ac_header in malloc.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "malloc.h" "ac_cv_header_malloc_h" "$ac_includes_default"
+if test "x$ac_cv_header_malloc_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_MALLOC_H 1
+_ACEOF
+
+fi
+
+done
+      # some systems define stuff there, others not
+for ac_header in glob.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "glob.h" "ac_cv_header_glob_h" "$ac_includes_default"
+if test "x$ac_cv_header_glob_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_GLOB_H 1
+_ACEOF
+
+fi
+
+done
+        # for heap-profile-table (cleaning up profiles)
+for ac_header in execinfo.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "execinfo.h" "ac_cv_header_execinfo_h" "$ac_includes_default"
+if test "x$ac_cv_header_execinfo_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EXECINFO_H 1
+_ACEOF
+
+fi
+
+done
+    # for stacktrace? and heapchecker_unittest
+for ac_header in unwind.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "unwind.h" "ac_cv_header_unwind_h" "$ac_includes_default"
+if test "x$ac_cv_header_unwind_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_UNWIND_H 1
+_ACEOF
+
+fi
+
+done
+      # for stacktrace
+for ac_header in sched.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sched.h" "ac_cv_header_sched_h" "$ac_includes_default"
+if test "x$ac_cv_header_sched_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SCHED_H 1
+_ACEOF
+
+fi
+
+done
+       # for being nice in our spinlock code
+for ac_header in conflict-signal.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "conflict-signal.h" "ac_cv_header_conflict_signal_h" "$ac_includes_default"
+if test "x$ac_cv_header_conflict_signal_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_CONFLICT_SIGNAL_H 1
+_ACEOF
+
+fi
+
+done
+      # defined on some windows platforms?
+for ac_header in sys/prctl.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/prctl.h" "ac_cv_header_sys_prctl_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_prctl_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_PRCTL_H 1
+_ACEOF
+
+fi
+
+done
+   # for thread_lister (needed by leak-checker)
+for ac_header in linux/ptrace.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "linux/ptrace.h" "ac_cv_header_linux_ptrace_h" "$ac_includes_default"
+if test "x$ac_cv_header_linux_ptrace_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LINUX_PTRACE_H 1
+_ACEOF
+
+fi
+
+done
+# also needed by leak-checker
+for ac_header in sys/syscall.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/syscall.h" "ac_cv_header_sys_syscall_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_syscall_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_SYSCALL_H 1
+_ACEOF
+
+fi
+
+done
+
+for ac_header in sys/socket.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_socket_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_SOCKET_H 1
+_ACEOF
+
+fi
+
+done
+  # optional; for forking out to symbolizer
+for ac_header in sys/wait.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/wait.h" "ac_cv_header_sys_wait_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_wait_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_WAIT_H 1
+_ACEOF
+
+fi
+
+done
+    # optional; for forking out to symbolizer
+for ac_header in poll.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "poll.h" "ac_cv_header_poll_h" "$ac_includes_default"
+if test "x$ac_cv_header_poll_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_POLL_H 1
+_ACEOF
+
+fi
+
+done
+        # optional; for forking out to symbolizer
+for ac_header in fcntl.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "fcntl.h" "ac_cv_header_fcntl_h" "$ac_includes_default"
+if test "x$ac_cv_header_fcntl_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_FCNTL_H 1
+_ACEOF
+
+fi
+
+done
+       # for tcmalloc_unittest
+for ac_header in grp.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "grp.h" "ac_cv_header_grp_h" "$ac_includes_default"
+if test "x$ac_cv_header_grp_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_GRP_H 1
+_ACEOF
+
+fi
+
+done
+         # for heapchecker_unittest
+for ac_header in pwd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "pwd.h" "ac_cv_header_pwd_h" "$ac_includes_default"
+if test "x$ac_cv_header_pwd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_PWD_H 1
+_ACEOF
+
+fi
+
+done
+         # for heapchecker_unittest
+for ac_header in sys/resource.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/resource.h" "ac_cv_header_sys_resource_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_resource_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_RESOURCE_H 1
+_ACEOF
+
+fi
+
+done
+         # for memalign_unittest.cc
+for ac_header in sys/cdefs.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/cdefs.h" "ac_cv_header_sys_cdefs_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_cdefs_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_CDEFS_H 1
+_ACEOF
+
+fi
+
+done
+   # Where glibc defines __THROW
+# We also need /, but we get those from
+# AC_PC_FROM_UCONTEXT, below.
+
+# We override a lot of memory allocation routines, not all of which are
+# standard.  For those the system doesn't declare, we'll declare ourselves.
+ac_fn_c_check_decl "$LINENO" "cfree" "ac_cv_have_decl_cfree" "#define _XOPEN_SOURCE 600
+                #include 
+                #include 
+"
+if test "x$ac_cv_have_decl_cfree" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_CFREE $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "posix_memalign" "ac_cv_have_decl_posix_memalign" "#define _XOPEN_SOURCE 600
+                #include 
+                #include 
+"
+if test "x$ac_cv_have_decl_posix_memalign" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_POSIX_MEMALIGN $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "memalign" "ac_cv_have_decl_memalign" "#define _XOPEN_SOURCE 600
+                #include 
+                #include 
+"
+if test "x$ac_cv_have_decl_memalign" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_MEMALIGN $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "valloc" "ac_cv_have_decl_valloc" "#define _XOPEN_SOURCE 600
+                #include 
+                #include 
+"
+if test "x$ac_cv_have_decl_valloc" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_VALLOC $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "pvalloc" "ac_cv_have_decl_pvalloc" "#define _XOPEN_SOURCE 600
+                #include 
+                #include 
+"
+if test "x$ac_cv_have_decl_pvalloc" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PVALLOC $ac_have_decl
+_ACEOF
+
+
+if test "$ac_cv_type_struct_mallinfo" = yes; then
+  ac_cv_have_struct_mallinfo=1
+   # gperftools/tcmalloc.h needs this
+else
+  ac_cv_have_struct_mallinfo=0
+
+fi
+
+# We hardcode HAVE_MMAP to 1. There are no interesting systems anymore
+# without functional mmap. And our windows (except mingw) builds
+# aren't using autoconf. So we keep HAVE_MMAP define, but only to
+# distingush windows and rest.
+case "$host" in
+   *-mingw*) default_emergency_malloc=no;;
+   *) default_emergency_malloc=yes
+
+$as_echo "#define HAVE_MMAP 1" >>confdefs.h
+
+esac
+
+# If AtomicWord != Atomic32, we need to define two versions of all the
+# atomicops functions.  If they're the same, we want to define only one.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if int32_t is the same type as intptr_t" >&5
+$as_echo_n "checking if int32_t is the same type as intptr_t... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+int32_t v1 = 0; intptr_t v2 = 0; return (&v1 - &v2)
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+$as_echo "#define INT32_EQUALS_INTPTR 1" >>confdefs.h
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+# We want to access the "PC" (Program Counter) register from a struct
+# ucontext.  Every system has its own way of doing that.  We try all the
+# possibilities we know about.  Note REG_PC should come first (REG_RIP
+# is also defined on solaris, but does the wrong thing).  But don't
+# bother if we're not doing cpu-profiling.
+# [*] means that we've not actually tested one of these systems
+if test "$enable_cpu_profiler" = yes; then
+  for ac_header in ucontext.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "ucontext.h" "ac_cv_header_ucontext_h" "$ac_includes_default"
+if test "x$ac_cv_header_ucontext_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_UCONTEXT_H 1
+_ACEOF
+
+fi
+
+done
+
+   # Redhat 7 has , but it barfs if we #include it directly
+   # (this was fixed in later redhats).   works fine, so use that.
+   if grep "Red Hat Linux release 7" /etc/redhat-release >/dev/null 2>&1; then
+
+$as_echo "#define HAVE_SYS_UCONTEXT_H 0" >>confdefs.h
+
+     ac_cv_header_sys_ucontext_h=no
+   else
+     for ac_header in sys/ucontext.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/ucontext.h" "ac_cv_header_sys_ucontext_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_ucontext_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_UCONTEXT_H 1
+_ACEOF
+
+fi
+
+done
+       # ucontext on OS X 10.6 (at least)
+   fi
+   for ac_header in cygwin/signal.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "cygwin/signal.h" "ac_cv_header_cygwin_signal_h" "$ac_includes_default"
+if test "x$ac_cv_header_cygwin_signal_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_CYGWIN_SIGNAL_H 1
+_ACEOF
+
+fi
+
+done
+        # ucontext on cywgin
+   for ac_header in asm/ptrace.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "asm/ptrace.h" "ac_cv_header_asm_ptrace_h" "$ac_includes_default"
+if test "x$ac_cv_header_asm_ptrace_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ASM_PTRACE_H 1
+_ACEOF
+
+fi
+
+done
+           # get ptrace macros, e.g. PT_NIP
+   { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to access the program counter from a struct ucontext" >&5
+$as_echo_n "checking how to access the program counter from a struct ucontext... " >&6; }
+   pc_fields="           uc_mcontext.gregs[REG_PC]"  # Solaris x86 (32 + 64 bit)
+   pc_fields="$pc_fields uc_mcontext.gregs[REG_EIP]" # Linux (i386)
+   pc_fields="$pc_fields uc_mcontext.gregs[REG_RIP]" # Linux (x86_64)
+   pc_fields="$pc_fields uc_mcontext.sc_ip"            # Linux (ia64)
+   pc_fields="$pc_fields uc_mcontext.pc"               # Linux (mips)
+   pc_fields="$pc_fields uc_mcontext.uc_regs->gregs[PT_NIP]" # Linux (ppc)
+   pc_fields="$pc_fields uc_mcontext.__gregs[REG_PC]"  # Linux (riscv64)
+   pc_fields="$pc_fields uc_mcontext.psw.addr"         # Linux (s390)
+   pc_fields="$pc_fields uc_mcontext.gregs[R15]"     # Linux (arm old [untested])
+   pc_fields="$pc_fields uc_mcontext.arm_pc"           # Linux (arm arch 5)
+   pc_fields="$pc_fields uc_mcontext.cr0_hi"           # Linux (e2k)
+   pc_fields="$pc_fields uc_mcontext.gp_regs[PT_NIP]"  # Suse SLES 11 (ppc64)
+   pc_fields="$pc_fields uc_mcontext.mc_eip"           # FreeBSD (i386)
+   pc_fields="$pc_fields uc_mcontext.mc_srr0"          # FreeBSD (powerpc, powerpc64)
+   pc_fields="$pc_fields uc_mcontext.mc_rip"           # FreeBSD (x86_64 [untested])
+   pc_fields="$pc_fields uc_mcontext.__gregs[_REG_EIP]"  # NetBSD (i386)
+   pc_fields="$pc_fields uc_mcontext.__gregs[_REG_RIP]"  # NetBSD (x86_64)
+   pc_fields="$pc_fields uc_mcontext->ss.eip"          # OS X (i386, <=10.4)
+   pc_fields="$pc_fields uc_mcontext->__ss.__eip"      # OS X (i386, >=10.5)
+   pc_fields="$pc_fields uc_mcontext->ss.rip"          # OS X (x86_64)
+   pc_fields="$pc_fields uc_mcontext->__ss.__rip"      # OS X (>=10.5 [untested])
+   pc_fields="$pc_fields uc_mcontext->ss.srr0"         # OS X (ppc, ppc64 [untested])
+   pc_fields="$pc_fields uc_mcontext->__ss.__srr0"     # OS X (>=10.5 [untested])
+   pc_fields="$pc_fields uc_mcontext->__ss.__pc"       # OS X (arm64)
+   pc_field_found=false
+   for pc_field in $pc_fields; do
+     if ! $pc_field_found; then
+       # Prefer sys/ucontext.h to ucontext.h, for OS X's sake.
+       if test "x$ac_cv_header_cygwin_signal_h" = xyes; then
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GNU_SOURCE 1
+                         #include 
+int
+main ()
+{
+ucontext_t u; return u.$pc_field == 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+cat >>confdefs.h <<_ACEOF
+#define PC_FROM_UCONTEXT $pc_field
+_ACEOF
+
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
+$as_echo "$pc_field" >&6; }
+                        pc_field_found=true
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       elif test "x$ac_cv_header_asm_ptrace_h" = xyes -a "x$ac_cv_header_sys_ucontext_h" = xyes; then
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GNU_SOURCE 1
+                         #include 
+                         #include 
+int
+main ()
+{
+ucontext_t u; return u.$pc_field == 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+cat >>confdefs.h <<_ACEOF
+#define PC_FROM_UCONTEXT $pc_field
+_ACEOF
+
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
+$as_echo "$pc_field" >&6; }
+                        pc_field_found=true
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       elif test "x$ac_cv_header_sys_ucontext_h" = xyes; then
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GNU_SOURCE 1
+                        #include 
+int
+main ()
+{
+ucontext_t u; return u.$pc_field == 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+cat >>confdefs.h <<_ACEOF
+#define PC_FROM_UCONTEXT $pc_field
+_ACEOF
+
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
+$as_echo "$pc_field" >&6; }
+                        pc_field_found=true
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       elif test "x$ac_cv_header_ucontext_h" = xyes; then
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#define _GNU_SOURCE 1
+                         #include 
+int
+main ()
+{
+ucontext_t u; return u.$pc_field == 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+cat >>confdefs.h <<_ACEOF
+#define PC_FROM_UCONTEXT $pc_field
+_ACEOF
+
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
+$as_echo "$pc_field" >&6; }
+                        pc_field_found=true
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       else     # hope some standard header gives it to us
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+ucontext_t u; return u.$pc_field == 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+cat >>confdefs.h <<_ACEOF
+#define PC_FROM_UCONTEXT $pc_field
+_ACEOF
+
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
+$as_echo "$pc_field" >&6; }
+                        pc_field_found=true
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       fi
+     fi
+   done
+   if ! $pc_field_found; then
+     pc_fields="           sc_eip"  # OpenBSD (i386)
+     pc_fields="$pc_fields sc_rip"  # OpenBSD (x86_64)
+     for pc_field in $pc_fields; do
+       if ! $pc_field_found; then
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+ucontext_t u; return u.$pc_field == 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+cat >>confdefs.h <<_ACEOF
+#define PC_FROM_UCONTEXT $pc_field
+_ACEOF
+
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
+$as_echo "$pc_field" >&6; }
+                        pc_field_found=true
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       fi
+     done
+   fi
+   if ! $pc_field_found; then
+     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Could not find the PC.  Will not try to compile libprofiler..." >&5
+$as_echo "$as_me: WARNING: Could not find the PC.  Will not try to compile libprofiler..." >&2;};
+                      enable_cpu_profiler=no
+   fi
+fi
+
+# Some tests test the behavior of .so files, and only make sense for dynamic.
+ if test "$enable_static" = yes; then
+  ENABLE_STATIC_TRUE=
+  ENABLE_STATIC_FALSE='#'
+else
+  ENABLE_STATIC_TRUE='#'
+  ENABLE_STATIC_FALSE=
+fi
+
+
+# We want to link in libunwind if it is enabled and exists.
+UNWIND_LIBS=
+if test "$enable_libunwind" = yes; then
+  for ac_header in libunwind.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "libunwind.h" "ac_cv_header_libunwind_h" "$ac_includes_default"
+if test "x$ac_cv_header_libunwind_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBUNWIND_H 1
+_ACEOF
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for backtrace in -lunwind" >&5
+$as_echo_n "checking for backtrace in -lunwind... " >&6; }
+if ${ac_cv_lib_unwind_backtrace+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lunwind  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char backtrace ();
+int
+main ()
+{
+return backtrace ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_unwind_backtrace=yes
+else
+  ac_cv_lib_unwind_backtrace=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_unwind_backtrace" >&5
+$as_echo "$ac_cv_lib_unwind_backtrace" >&6; }
+if test "x$ac_cv_lib_unwind_backtrace" = xyes; then :
+  UNWIND_LIBS=-lunwind
+fi
+
+                    will_use_libunwind=yes
+fi
+
+done
+
+fi
+
+
+# On x86_64, instead of libunwind, we can choose to compile with frame-pointers.
+# Check whether --enable-frame_pointers was given.
+if test "${enable_frame_pointers+set}" = set; then :
+  enableval=$enable_frame_pointers;
+else
+  enable_frame_pointers=no
+fi
+
+ if test "$enable_frame_pointers" = yes; then
+  ENABLE_FRAME_POINTERS_TRUE=
+  ENABLE_FRAME_POINTERS_FALSE='#'
+else
+  ENABLE_FRAME_POINTERS_TRUE='#'
+  ENABLE_FRAME_POINTERS_FALSE=
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for x86 without frame pointers" >&5
+$as_echo_n "checking for x86 without frame pointers... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return __x86_64__ == 1 ? 0 : 1
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  is_x86_64=yes
+else
+  is_x86_64=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+omit_fp_by_default=no
+if test "$is_x86_64" = yes; then :
+  omit_fp_by_default=yes
+fi
+ if test "$omit_fp_by_default" = yes; then
+  OMIT_FP_BY_DEFAULT_TRUE=
+  OMIT_FP_BY_DEFAULT_FALSE='#'
+else
+  OMIT_FP_BY_DEFAULT_TRUE='#'
+  OMIT_FP_BY_DEFAULT_FALSE=
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $omit_fp_by_default" >&5
+$as_echo "$omit_fp_by_default" >&6; }
+
+# We need to know if we're i386 so we can turn on -mmms, which is not
+# on by default for i386 (it is for x86_64).
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return __i386__ == 1 ? 0 : 1
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  is_i386=yes
+else
+  is_i386=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ if test "$is_i386" = yes; then
+  I386_TRUE=
+  I386_FALSE='#'
+else
+  I386_TRUE='#'
+  I386_FALSE=
+fi
+
+
+# See if the compiler supports -Wno-unused-result.
+# Newer ubuntu's turn on -D_FORTIFY_SOURCE=2, enabling
+# __attribute__((warn_unused_result)) for things like write(),
+# which we don't care about.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the compiler supports -Wno-unused-result" >&5
+$as_echo_n "checking if the compiler supports -Wno-unused-result... " >&6; }
+if ${perftools_cv_w_no_unused_result+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  OLD_CFLAGS="$CFLAGS"
+	        CFLAGS="$CFLAGS -Wno-error -Wunused-result"
+		# gcc doesn't warn about unknown flags unless it's
+		# also warning for some other purpose, hence the
+		# divide-by-0.  (We use -Wno-error to make sure the
+		# divide-by-0 doesn't cause this test to fail!)
+                #
+                # Also gcc is giving only warning for unknown flags of
+                # -Wno-XXX form. So in order to detect support we're
+                # using -Wunused-result which will cause gcc to give
+                # error which we can detect.
+	        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 1/0
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  perftools_cv_w_no_unused_result=yes
+else
+  perftools_cv_w_no_unused_result=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+	        CFLAGS="$OLD_CFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $perftools_cv_w_no_unused_result" >&5
+$as_echo "$perftools_cv_w_no_unused_result" >&6; }
+ if test "$perftools_cv_w_no_unused_result" = yes; then
+  HAVE_W_NO_UNUSED_RESULT_TRUE=
+  HAVE_W_NO_UNUSED_RESULT_FALSE='#'
+else
+  HAVE_W_NO_UNUSED_RESULT_TRUE='#'
+  HAVE_W_NO_UNUSED_RESULT_FALSE=
+fi
+
+
+# Check whether --enable-deprecated-pprof was given.
+if test "${enable_deprecated_pprof+set}" = set; then :
+  enableval=$enable_deprecated_pprof; enable_pprof="$enableval"
+else
+  enable_pprof=yes
+fi
+
+
+ if test "x$enable_pprof" = xyes; then
+  INSTALL_PPROF_TRUE=
+  INSTALL_PPROF_FALSE='#'
+else
+  INSTALL_PPROF_TRUE='#'
+  INSTALL_PPROF_FALSE=
+fi
+
+
+# Check whether --enable-dynamic-sized-delete-support was given.
+if test "${enable_dynamic_sized_delete_support+set}" = set; then :
+  enableval=$enable_dynamic_sized_delete_support; enable_dyn_sized_delete="$enableval"
+else
+  enable_dyn_sized_delete=no
+fi
+
+
+if test "x$enable_dyn_sized_delete" = xyes; then :
+
+$as_echo "#define ENABLE_DYNAMIC_SIZED_DELETE 1" >>confdefs.h
+
+fi
+
+# Check whether --enable-sized-delete was given.
+if test "${enable_sized_delete+set}" = set; then :
+  enableval=$enable_sized_delete; enable_sized_delete="$enableval"
+else
+  enable_sized_delete="no"
+fi
+
+if test "x$enable_sized_delete" = xyes; then :
+
+$as_echo "#define ENABLE_SIZED_DELETE 1" >>confdefs.h
+
+         { $as_echo "$as_me:${as_lineno-$LINENO}: Will build sized deallocation operators" >&5
+$as_echo "$as_me: Will build sized deallocation operators" >&6;}
+else
+  if test "x$enable_dyn_sized_delete" = xyes; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: Will build dynamically detected sized deallocation operators" >&5
+$as_echo "$as_me: Will build dynamically detected sized deallocation operators" >&6;}
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: Will build sized deallocation operators that ignore size" >&5
+$as_echo "$as_me: Will build sized deallocation operators that ignore size" >&6;}
+fi
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if C++ compiler supports -fsized-deallocation" >&5
+$as_echo_n "checking if C++ compiler supports -fsized-deallocation... " >&6; }
+if ${perftools_cv_sized_deallocation_result+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+                OLD_CXXFLAGS="$CXXFLAGS"
+                CXXFLAGS="$CXXFLAGS -fsized-deallocation"
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#include 
+int
+main ()
+{
+static void (* volatile ptr)(void *, size_t) = ::operator delete; (*ptr)(0, 256);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  perftools_cv_sized_deallocation_result=yes
+else
+  perftools_cv_sized_deallocation_result=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+                CXXFLAGS="$OLD_CXXFLAGS"
+                ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $perftools_cv_sized_deallocation_result" >&5
+$as_echo "$perftools_cv_sized_deallocation_result" >&6; }
+
+ if test "$perftools_cv_sized_deallocation_result" = yes; then
+  HAVE_SIZED_DEALLOCATION_TRUE=
+  HAVE_SIZED_DEALLOCATION_FALSE='#'
+else
+  HAVE_SIZED_DEALLOCATION_TRUE='#'
+  HAVE_SIZED_DEALLOCATION_FALSE=
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if C++ compiler supports std::align_val_t without options" >&5
+$as_echo_n "checking if C++ compiler supports std::align_val_t without options... " >&6; }
+if ${perftools_cv_have_align_val_t+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+(::operator delete)((::operator new)(256, std::align_val_t(16)), std::align_val_t(16))
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  perftools_cv_have_align_val_t=yes
+else
+  perftools_cv_have_align_val_t=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+                ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $perftools_cv_have_align_val_t" >&5
+$as_echo "$perftools_cv_have_align_val_t" >&6; }
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if C++ compiler supports -faligned-new" >&5
+$as_echo_n "checking if C++ compiler supports -faligned-new... " >&6; }
+if ${perftools_cv_have_f_aligned_new+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+                OLD_CXXFLAGS="$CXXFLAGS"
+                CXXFLAGS="$CXXFLAGS -faligned-new"
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+(::operator delete)((::operator new)(256, std::align_val_t(16)), std::align_val_t(16))
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  perftools_cv_have_f_aligned_new=yes
+else
+  perftools_cv_have_f_aligned_new=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+                CXXFLAGS="$OLD_CXXFLAGS"
+                ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $perftools_cv_have_f_aligned_new" >&5
+$as_echo "$perftools_cv_have_f_aligned_new" >&6; }
+
+ if test "$perftools_cv_have_f_aligned_new" = yes; then
+  HAVE_F_ALIGNED_NEW_TRUE=
+  HAVE_F_ALIGNED_NEW_FALSE='#'
+else
+  HAVE_F_ALIGNED_NEW_TRUE='#'
+  HAVE_F_ALIGNED_NEW_FALSE=
+fi
+
+
+if test "$perftools_cv_have_align_val_t" = yes || test "$perftools_cv_have_f_aligned_new" = yes; then :
+
+$as_echo "#define ENABLE_ALIGNED_NEW_DELETE 1" >>confdefs.h
+
+         { $as_echo "$as_me:${as_lineno-$LINENO}: Will build new/delete operators for overaligned types" >&5
+$as_echo "$as_me: Will build new/delete operators for overaligned types" >&6;}
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: Will not build new/delete operators for overaligned types" >&5
+$as_echo "$as_me: Will not build new/delete operators for overaligned types" >&6;}
+fi
+
+if test "$perftools_cv_have_align_val_t" = yes || test "$perftools_cv_have_f_aligned_new" = yes; then
+  ac_cv_have_std_align_val_t=1
+   # gperftools/tcmalloc.h and windows/gperftools/tcmalloc.h need this
+else
+  ac_cv_have_std_align_val_t=0
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if target has _Unwind_Backtrace" >&5
+$as_echo_n "checking if target has _Unwind_Backtrace... " >&6; }
+if ${perftools_cv_have_unwind_backtrace+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+#if defined(__APPLE__)
+#error OSX _Unwind_Backtrace recurses back to malloc
+#endif
+
+int
+main ()
+{
+&_Unwind_Backtrace
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  perftools_cv_have_unwind_backtrace=yes
+else
+  perftools_cv_have_unwind_backtrace=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+                ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $perftools_cv_have_unwind_backtrace" >&5
+$as_echo "$perftools_cv_have_unwind_backtrace" >&6; }
+if test "x$perftools_cv_have_unwind_backtrace" = xyes; then :
+
+$as_echo "#define HAVE_UNWIND_BACKTRACE 1" >>confdefs.h
+
+fi
+
+if test "x$will_use_libunwind" = xyes; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return __arm__
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  default_emergency_malloc=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+# Check whether --enable-emergency-malloc was given.
+if test "${enable_emergency_malloc+set}" = set; then :
+  enableval=$enable_emergency_malloc; enable_emergency_malloc="$enableval"
+else
+  enable_emergency_malloc="$default_emergency_malloc"
+fi
+
+
+ if test "x$enable_emergency_malloc" = xyes; then
+  BUILD_EMERGENCY_MALLOC_TRUE=
+  BUILD_EMERGENCY_MALLOC_FALSE='#'
+else
+  BUILD_EMERGENCY_MALLOC_TRUE='#'
+  BUILD_EMERGENCY_MALLOC_FALSE=
+fi
+
+
+# Also make sure we get standard PRI... definitions, even with glibc.
+# We have to use AH_VERBATIM because we need the #ifdef guard (gcc buglet)
+
+
+# Check if __environ is available (for GetenvBeforeMain)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __environ" >&5
+$as_echo_n "checking for __environ... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+char **env = __environ
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+$as_echo "#define HAVE___ENVIRON 1" >>confdefs.h
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+# If we support __thread, that can speed up tcmalloc a bit.
+# Note, however, that our code tickles a bug in gcc < 4.1.2
+# involving TLS and -fPIC (which our libraries will use) on x86:
+#   http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
+#
+# And mingw also does compile __thread but resultant code actually
+# fails to work correctly at least in some not so ancient version:
+# http://mingw-users.1079350.n2.nabble.com/gcc-4-4-multi-threaded-exception-handling-amp-thread-specifier-not-working-td3440749.html
+#
+# Also it was reported that earlier gcc versions for mips compile
+# __thread but it doesn't really work
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __thread" >&5
+$as_echo_n "checking for __thread... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#if defined(__GNUC__) && ((__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 1) || (__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ < 2))
+#error gcc has this bug: http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
+#elif defined(__MINGW32__)
+#error mingw doesnt really support tls
+#elif defined(__APPLE__)
+#error OSX __thread support is known to call malloc which makes it unsafe to use from malloc replacement
+#endif
+
+int
+main ()
+{
+static __thread int p = 0
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+$as_echo "#define HAVE_TLS 1" >>confdefs.h
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+# Nanosleep requires extra libraries on some architectures (solaris).
+# This sets NANOSLEEP_LIBS.  nanosleep doesn't exist on mingw, which
+# is fine for us because we don't compile libspinlock, which uses it.
+if test "$need_nanosleep" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if nanosleep requires any libraries" >&5
+$as_echo_n "checking if nanosleep requires any libraries... " >&6; }
+
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ acx_nanosleep_ok="no"
+ NANOSLEEP_LIBS=
+ # For most folks, this should just work
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+static struct timespec ts; nanosleep(&ts, NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  acx_nanosleep_ok=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+ # For solaris, we may  need -lrt
+ if test "x$acx_nanosleep_ok" != "xyes"; then
+   OLD_LIBS="$LIBS"
+   LIBS="-lrt $LIBS"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+static struct timespec ts; nanosleep(&ts, NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  acx_nanosleep_ok=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+   if test "x$acx_nanosleep_ok" = "xyes"; then
+     NANOSLEEP_LIBS="-lrt"
+   fi
+   LIBS="$OLD_LIBS"
+ fi
+ if test "x$acx_nanosleep_ok" != "xyes"; then
+   as_fn_error $? "cannot find the nanosleep function" "$LINENO" 5
+ else
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${NANOSLEEP_LIBS:-no}" >&5
+$as_echo "${NANOSLEEP_LIBS:-no}" >&6; }
+ fi
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+fi
+
+# Solaris 10 6/06 has a bug where /usr/sfw/lib/libstdc++.la is empty.
+# If so, we replace it with our own version.
+LIBSTDCXX_LA_LINKER_FLAG=
+if test -f /usr/sfw/lib/libstdc++.la && ! test -s /usr/sfw/lib/libstdc++.la
+then
+  LIBSTDCXX_LA_LINKER_FLAG='-L$(top_srcdir)/src/solaris'
+fi
+
+
+# In fact, a lot of the code in this directory depends on pthreads
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+acx_pthread_ok=no
+
+# We used to check for pthread.h first, but this fails if pthread.h
+# requires special compiler flags (e.g. on True64 or Sequent).
+# It gets checked for in the link test anyway.
+
+# First of all, check if the user has set any of the PTHREAD_LIBS,
+# etcetera environment variables, and if threads linking works using
+# them:
+if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
+        save_CFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+        save_LIBS="$LIBS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS" >&5
+$as_echo_n "checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS... " >&6; }
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_join ();
+int
+main ()
+{
+return pthread_join ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  acx_pthread_ok=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_ok" >&5
+$as_echo "$acx_pthread_ok" >&6; }
+        if test x"$acx_pthread_ok" = xno; then
+                PTHREAD_LIBS=""
+                PTHREAD_CFLAGS=""
+        fi
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+fi
+
+# We must check for the threads library under a number of different
+# names; the ordering is very important because some systems
+# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
+# libraries is broken (non-POSIX).
+
+# Create a list of thread flags to try.  Items starting with a "-" are
+# C compiler flags, and other items are library names, except for "none"
+# which indicates that we try without any flags at all, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+
+# The ordering *is* (sometimes) important.  Some notes on the
+# individual items follow:
+
+# pthreads: AIX (must check this before -lpthread)
+# none: in case threads are in libc; should be tried before -Kthread and
+#       other compiler flags to prevent continual compiler warnings
+# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
+# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
+# -pthreads: Solaris/gcc
+# -mthreads: Mingw32/gcc, Lynx/gcc
+# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
+#      doesn't hurt to check since this sometimes defines pthreads too;
+#      also defines -D_REENTRANT)
+#      ... -mt is also the pthreads flag for HP/aCC
+# pthread: Linux, etcetera
+# --thread-safe: KAI C++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case "${host_cpu}-${host_os}" in
+        *solaris*)
+
+        # On Solaris (at least, for some versions), libc contains stubbed
+        # (non-functional) versions of the pthreads routines, so link-based
+        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
+        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
+        # a function called by this macro, so we could check for that, but
+        # who knows whether they'll stub that too in a future libc.)  So,
+        # we'll just look for -pthreads and -lpthread first:
+
+        acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
+        ;;
+esac
+
+if test x"$acx_pthread_ok" = xno; then
+for flag in $acx_pthread_flags; do
+
+        case $flag in
+                none)
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5
+$as_echo_n "checking whether pthreads work without any flags... " >&6; }
+                ;;
+
+                -*)
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $flag" >&5
+$as_echo_n "checking whether pthreads work with $flag... " >&6; }
+                PTHREAD_CFLAGS="$flag"
+                ;;
+
+		pthread-config)
+		# Extract the first word of "pthread-config", so it can be a program name with args.
+set dummy pthread-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_acx_pthread_config+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$acx_pthread_config"; then
+  ac_cv_prog_acx_pthread_config="$acx_pthread_config" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_acx_pthread_config="yes"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_acx_pthread_config" && ac_cv_prog_acx_pthread_config="no"
+fi
+fi
+acx_pthread_config=$ac_cv_prog_acx_pthread_config
+if test -n "$acx_pthread_config"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_config" >&5
+$as_echo "$acx_pthread_config" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+		if test x"$acx_pthread_config" = xno; then continue; fi
+		PTHREAD_CFLAGS="`pthread-config --cflags`"
+		PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+		;;
+
+                *)
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$flag" >&5
+$as_echo_n "checking for the pthreads library -l$flag... " >&6; }
+                PTHREAD_LIBS="-l$flag"
+                ;;
+        esac
+
+        save_LIBS="$LIBS"
+        save_CFLAGS="$CFLAGS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+        # Check for various functions.  We must include pthread.h,
+        # since some functions may be macros.  (On the Sequent, we
+        # need a special flag -Kthread to make this header compile.)
+        # We check for pthread_join because it is in -lpthread on IRIX
+        # while pthread_create is in libc.  We check for pthread_attr_init
+        # due to DEC craziness with -lpthreads.  We check for
+        # pthread_cleanup_push because it is one of the few pthread
+        # functions on Solaris that doesn't have a non-functional libc stub.
+        # We try pthread_create on general principles.
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+pthread_t th; pthread_join(th, 0);
+                     pthread_attr_init(0); pthread_cleanup_push(0, 0);
+                     pthread_create(0,0,0,0); pthread_cleanup_pop(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  acx_pthread_ok=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_ok" >&5
+$as_echo "$acx_pthread_ok" >&6; }
+        if test "x$acx_pthread_ok" = xyes; then
+                break;
+        fi
+
+        PTHREAD_LIBS=""
+        PTHREAD_CFLAGS=""
+done
+fi
+
+# Various other checks:
+if test "x$acx_pthread_ok" = xyes; then
+        save_LIBS="$LIBS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        save_CFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+        # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5
+$as_echo_n "checking for joinable pthread attribute... " >&6; }
+	attr_name=unknown
+	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+int attr=$attr; return attr;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  attr_name=$attr; break
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	done
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $attr_name" >&5
+$as_echo "$attr_name" >&6; }
+        if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
+
+cat >>confdefs.h <<_ACEOF
+#define PTHREAD_CREATE_JOINABLE $attr_name
+_ACEOF
+
+        fi
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking if more special flags are required for pthreads" >&5
+$as_echo_n "checking if more special flags are required for pthreads... " >&6; }
+        flag=no
+        case "${host_cpu}-${host_os}" in
+            *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
+            *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
+        esac
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${flag}" >&5
+$as_echo "${flag}" >&6; }
+        if test "x$flag" != xno; then
+            PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
+        fi
+
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+        # More AIX lossage: must compile with xlc_r or cc_r
+	if test x"$GCC" != xyes; then
+          for ac_prog in xlc_r cc_r
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_PTHREAD_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$PTHREAD_CC"; then
+  ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_PTHREAD_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+PTHREAD_CC=$ac_cv_prog_PTHREAD_CC
+if test -n "$PTHREAD_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CC" >&5
+$as_echo "$PTHREAD_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$PTHREAD_CC" && break
+done
+test -n "$PTHREAD_CC" || PTHREAD_CC="${CC}"
+
+        else
+          PTHREAD_CC=$CC
+	fi
+
+	# The next part tries to detect GCC inconsistency with -shared on some
+	# architectures and systems. The problem is that in certain
+	# configurations, when -shared is specified, GCC "forgets" to
+	# internally use various flags which are still necessary.
+
+	#
+	# Prepare the flags
+	#
+	save_CFLAGS="$CFLAGS"
+	save_LIBS="$LIBS"
+	save_CC="$CC"
+
+	# Try with the flags determined by the earlier checks.
+	#
+	# -Wl,-z,defs forces link-time symbol resolution, so that the
+	# linking checks with -shared actually have any value
+	#
+	# FIXME: -fPIC is required for -shared on many architectures,
+	# so we specify it here, but the right way would probably be to
+	# properly detect whether it is actually required.
+	CFLAGS="-shared -fPIC -Wl,-z,defs $CFLAGS $PTHREAD_CFLAGS"
+	LIBS="$PTHREAD_LIBS $LIBS"
+	CC="$PTHREAD_CC"
+
+	# In order not to create several levels of indentation, we test
+	# the value of "$done" until we find the cure or run out of ideas.
+	done="no"
+
+	# First, make sure the CFLAGS we added are actually accepted by our
+	# compiler.  If not (and OS X's ld, for instance, does not accept -z),
+	# then we can't do this test.
+	if test x"$done" = xno; then
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to check for GCC pthread/shared inconsistencies" >&5
+$as_echo_n "checking whether to check for GCC pthread/shared inconsistencies... " >&6; }
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+  done=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+	   if test "x$done" = xyes ; then
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	   else
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	   fi
+	fi
+
+	if test x"$done" = xno; then
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -pthread is sufficient with -shared" >&5
+$as_echo_n "checking whether -pthread is sufficient with -shared... " >&6; }
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+pthread_t th; pthread_join(th, 0);
+	      pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	      pthread_create(0,0,0,0); pthread_cleanup_pop(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  done=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+	   if test "x$done" = xyes; then
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	   else
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	   fi
+	fi
+
+	#
+	# Linux gcc on some architectures such as mips/mipsel forgets
+	# about -lpthread
+	#
+	if test x"$done" = xno; then
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lpthread fixes that" >&5
+$as_echo_n "checking whether -lpthread fixes that... " >&6; }
+	   LIBS="-lpthread $PTHREAD_LIBS $save_LIBS"
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+pthread_t th; pthread_join(th, 0);
+	      pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	      pthread_create(0,0,0,0); pthread_cleanup_pop(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  done=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+	   if test "x$done" = xyes; then
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	      PTHREAD_LIBS="-lpthread $PTHREAD_LIBS"
+	   else
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	   fi
+	fi
+	#
+	# FreeBSD 4.10 gcc forgets to use -lc_r instead of -lc
+	#
+	if test x"$done" = xno; then
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc_r fixes that" >&5
+$as_echo_n "checking whether -lc_r fixes that... " >&6; }
+	   LIBS="-lc_r $PTHREAD_LIBS $save_LIBS"
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+pthread_t th; pthread_join(th, 0);
+	        pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	        pthread_create(0,0,0,0); pthread_cleanup_pop(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  done=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+	   if test "x$done" = xyes; then
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	      PTHREAD_LIBS="-lc_r $PTHREAD_LIBS"
+	   else
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	   fi
+	fi
+	if test x"$done" = xno; then
+	   # OK, we have run out of ideas
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Impossible to determine how to use pthreads with shared libraries" >&5
+$as_echo "$as_me: WARNING: Impossible to determine how to use pthreads with shared libraries" >&2;}
+
+	   # so it's not safe to assume that we may use pthreads
+	   acx_pthread_ok=no
+	fi
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether what we have so far is sufficient with -nostdlib" >&5
+$as_echo_n "checking whether what we have so far is sufficient with -nostdlib... " >&6; }
+	CFLAGS="-nostdlib $CFLAGS"
+	# we need c with nostdlib
+	LIBS="$LIBS -lc"
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+pthread_t th; pthread_join(th, 0);
+	       pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	       pthread_create(0,0,0,0); pthread_cleanup_pop(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  done=yes
+else
+  done=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+	if test "x$done" = xyes; then
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	else
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	fi
+
+	if test x"$done" = xno; then
+	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lpthread saves the day" >&5
+$as_echo_n "checking whether -lpthread saves the day... " >&6; }
+	   LIBS="-lpthread $LIBS"
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+int
+main ()
+{
+pthread_t th; pthread_join(th, 0);
+	       pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	       pthread_create(0,0,0,0); pthread_cleanup_pop(0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  done=yes
+else
+  done=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+	   if test "x$done" = xyes; then
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	      PTHREAD_LIBS="$PTHREAD_LIBS -lpthread"
+	   else
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Impossible to determine how to use pthreads with shared libraries and -nostdlib" >&5
+$as_echo "$as_me: WARNING: Impossible to determine how to use pthreads with shared libraries and -nostdlib" >&2;}
+	   fi
+	fi
+
+	CFLAGS="$save_CFLAGS"
+	LIBS="$save_LIBS"
+	CC="$save_CC"
+else
+        PTHREAD_CC="$CC"
+fi
+
+
+
+
+
+# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
+if test x"$acx_pthread_ok" = xyes; then
+
+$as_echo "#define HAVE_PTHREAD 1" >>confdefs.h
+
+        :
+else
+        acx_pthread_ok=no
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthread symbols are available in C++ without including pthread.h" >&5
+$as_echo_n "checking whether pthread symbols are available in C++ without including pthread.h... " >&6; }
+acx_pthread_despite_asking_for=no
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      #include 
+      #include 
+
+int
+main ()
+{
+
+      pthread_t th; pthread_join(th, 0);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+    acx_pthread_despite_asking_for=yes
+
+$as_echo "#define HAVE_PTHREAD_DESPITE_ASKING_FOR 1" >>confdefs.h
+
+    $as_echo "#define HAVE_PTHREAD 1" >>confdefs.h
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_despite_asking_for" >&5
+$as_echo "$acx_pthread_despite_asking_for" >&6; }
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+ if test x"$acx_pthread_despite_asking_for" = xyes; then
+  HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE=
+  HAVE_PTHREAD_DESPITE_ASKING_FOR_FALSE='#'
+else
+  HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE='#'
+  HAVE_PTHREAD_DESPITE_ASKING_FOR_FALSE=
+fi
+
+
+# Figure out where libc has program_invocation_name
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for program_invocation_name" >&5
+$as_echo_n "checking for program_invocation_name... " >&6; }
+if ${ac_cv_have_program_invocation_name+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+extern char* program_invocation_name;
+int
+main ()
+{
+return *program_invocation_name;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_have_program_invocation_name=yes
+else
+  ac_cv_have_program_invocation_name=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have_program_invocation_name" >&5
+$as_echo "$ac_cv_have_program_invocation_name" >&6; }
+   if test "$ac_cv_have_program_invocation_name" = "yes"; then
+
+$as_echo "#define HAVE_PROGRAM_INVOCATION_NAME 1" >>confdefs.h
+
+   fi
+
+
+# Make the install prefix available, to figure out where to look for pprof
+ac_cv_install_prefix="$prefix";
+   if test x"$ac_cv_install_prefix" = x"NONE" ; then
+     ac_cv_install_prefix="$ac_default_prefix";
+   fi
+
+cat >>confdefs.h <<_ACEOF
+#define INSTALL_PREFIX "$ac_cv_install_prefix"
+_ACEOF
+
+
+
+case "$host" in
+   *-mingw*)
+     ac_fn_c_check_decl "$LINENO" "sleep" "ac_cv_have_decl_sleep" "#include 
+"
+if test "x$ac_cv_have_decl_sleep" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SLEEP $ac_have_decl
+_ACEOF
+
+     ac_fn_c_check_decl "$LINENO" "nanosleep" "ac_cv_have_decl_nanosleep" "#include 
+"
+if test "x$ac_cv_have_decl_nanosleep" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_NANOSLEEP $ac_have_decl
+_ACEOF
+
+   ;;
+esac
+
+if test "x$enable_backtrace" = xyes; then
+  ac_fn_c_check_decl "$LINENO" "backtrace" "ac_cv_have_decl_backtrace" "#include 
+"
+if test "x$ac_cv_have_decl_backtrace" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_BACKTRACE $ac_have_decl
+_ACEOF
+
+  save_LIBS=$LIBS
+  LIBS=$UNWIND_LIBS
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing backtrace" >&5
+$as_echo_n "checking for library containing backtrace... " >&6; }
+if ${ac_cv_search_backtrace+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char backtrace ();
+int
+main ()
+{
+return backtrace ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' execinfo; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_backtrace=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_backtrace+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_backtrace+:} false; then :
+
+else
+  ac_cv_search_backtrace=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_backtrace" >&5
+$as_echo "$ac_cv_search_backtrace" >&6; }
+ac_res=$ac_cv_search_backtrace
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+  UNWIND_LIBS=$LIBS
+  LIBS=$save_LIBS
+fi
+
+# For windows, this has a non-trivial value (__declspec(export)), but any
+# system that uses configure wants this to be the empty string.
+
+$as_echo "#define PERFTOOLS_DLL_DECL /**/" >>confdefs.h
+
+
+# In theory, config.h files shouldn't need a header guard, but we do,
+# because we (maybe) #include windows/mingw.h from within config.h,
+# and it #includes other .h files.  These all have header guards, so
+# the end result is if config.h is #included twice, its #undefs get
+# evaluated twice, but all the ones in mingw.h/etc only get evaluated
+# once, potentially causing trouble.  c.f.
+#   http://code.google.com/p/gperftools/issues/detail?id=246
+
+
+
+
+# MinGW uses autoconf, but also needs the windows shim routines
+# (since it doesn't have its own support for, say, pthreads).
+# This requires us to #include a special header file, and also to
+# link in some windows versions of .o's instead of the unix versions.
+#
+# Also, manually mark systems where we have to be careful how early
+# we run pthreads.  TODO(csilvers): turn this into an autoconf check.
+
+ if expr $host : '.*-mingw' >/dev/null 2>&1; then
+  MINGW_TRUE=
+  MINGW_FALSE='#'
+else
+  MINGW_TRUE='#'
+  MINGW_FALSE=
+fi
+
+ if expr $host : '.*-apple-darwin.*' >/dev/null 2>&1; then
+  OSX_TRUE=
+  OSX_FALSE='#'
+else
+  OSX_TRUE='#'
+  OSX_FALSE=
+fi
+
+
+# Export the --enable flags we set above.  We do this at the end so
+# other configure rules can enable or disable targets based on what
+# they find.
+ if test "$enable_cpu_profiler" = yes; then
+  WITH_CPU_PROFILER_TRUE=
+  WITH_CPU_PROFILER_FALSE='#'
+else
+  WITH_CPU_PROFILER_TRUE='#'
+  WITH_CPU_PROFILER_FALSE=
+fi
+
+ if test "$enable_heap_profiler" = yes; then
+  WITH_HEAP_PROFILER_TRUE=
+  WITH_HEAP_PROFILER_FALSE='#'
+else
+  WITH_HEAP_PROFILER_TRUE='#'
+  WITH_HEAP_PROFILER_FALSE=
+fi
+
+ if test "$enable_heap_checker" = yes; then
+  WITH_HEAP_CHECKER_TRUE=
+  WITH_HEAP_CHECKER_FALSE='#'
+else
+  WITH_HEAP_CHECKER_TRUE='#'
+  WITH_HEAP_CHECKER_FALSE=
+fi
+
+ if test "$enable_debugalloc" = yes; then
+  WITH_DEBUGALLOC_TRUE=
+  WITH_DEBUGALLOC_FALSE='#'
+else
+  WITH_DEBUGALLOC_TRUE='#'
+  WITH_DEBUGALLOC_FALSE=
+fi
+
+# We make tcmalloc.so if either heap-profiler or heap-checker is asked for.
+ if test "$enable_heap_profiler" = yes -o \
+                    "$enable_heap_checker" = yes; then
+  WITH_HEAP_PROFILER_OR_CHECKER_TRUE=
+  WITH_HEAP_PROFILER_OR_CHECKER_FALSE='#'
+else
+  WITH_HEAP_PROFILER_OR_CHECKER_TRUE='#'
+  WITH_HEAP_PROFILER_OR_CHECKER_FALSE=
+fi
+
+# If we don't use any profilers, we don't need stack traces (or pprof)
+ if test "$enable_cpu_profiler" = yes -o \
+                                      "$enable_heap_profiler" = yes -o \
+                                      "$enable_heap_checker" = yes; then
+  WITH_STACK_TRACE_TRUE=
+  WITH_STACK_TRACE_FALSE='#'
+else
+  WITH_STACK_TRACE_TRUE='#'
+  WITH_STACK_TRACE_FALSE=
+fi
+
+
+have_linux_sigev_thread_id=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Linux SIGEV_THREAD_ID" >&5
+$as_echo_n "checking for Linux SIGEV_THREAD_ID... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include 
+                           #include 
+int
+main ()
+{
+return SIGEV_THREAD_ID || CLOCK_THREAD_CPUTIME_ID || __linux;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+$as_echo "#define HAVE_LINUX_SIGEV_THREAD_ID 1" >>confdefs.h
+
+         have_linux_sigev_thread_id=yes
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+# Disable large allocation report by default.
+# Check whether --enable-large-alloc-report was given.
+if test "${enable_large_alloc_report+set}" = set; then :
+  enableval=$enable_large_alloc_report; enable_large_alloc_report="$enableval"
+else
+  enable_large_alloc_report=no
+fi
+
+if test "x$enable_large_alloc_report" = xyes; then :
+
+$as_echo "#define ENABLE_LARGE_ALLOC_REPORT 1" >>confdefs.h
+
+fi
+
+# Enable aggressive decommit by default
+# Check whether --enable-aggressive-decommit-by-default was given.
+if test "${enable_aggressive_decommit_by_default+set}" = set; then :
+  enableval=$enable_aggressive_decommit_by_default; enable_aggressive_decommit_by_default="$enableval"
+else
+  enable_aggressive_decommit_by_default=no
+fi
+
+if test "x$enable_aggressive_decommit_by_default" = xyes; then :
+
+$as_echo "#define ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT 1" >>confdefs.h
+
+fi
+
+# Write generated configuration file
+ac_config_files="$ac_config_files Makefile src/gperftools/tcmalloc.h src/windows/gperftools/tcmalloc.h"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
+$as_echo_n "checking that generated files are newer than configure... " >&6; }
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
+$as_echo "done" >&6; }
+ if test -n "$EXEEXT"; then
+  am__EXEEXT_TRUE=
+  am__EXEEXT_FALSE='#'
+else
+  am__EXEEXT_TRUE='#'
+  am__EXEEXT_FALSE=
+fi
+
+if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then
+  as_fn_error $? "conditional \"MAINTAINER_MODE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GCC_TRUE}" && test -z "${GCC_FALSE}"; then
+  as_fn_error $? "conditional \"GCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_OBJCOPY_WEAKEN_TRUE}" && test -z "${HAVE_OBJCOPY_WEAKEN_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_OBJCOPY_WEAKEN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_STATIC_TRUE}" && test -z "${ENABLE_STATIC_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_STATIC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_FRAME_POINTERS_TRUE}" && test -z "${ENABLE_FRAME_POINTERS_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_FRAME_POINTERS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${OMIT_FP_BY_DEFAULT_TRUE}" && test -z "${OMIT_FP_BY_DEFAULT_FALSE}"; then
+  as_fn_error $? "conditional \"OMIT_FP_BY_DEFAULT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${I386_TRUE}" && test -z "${I386_FALSE}"; then
+  as_fn_error $? "conditional \"I386\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_W_NO_UNUSED_RESULT_TRUE}" && test -z "${HAVE_W_NO_UNUSED_RESULT_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_W_NO_UNUSED_RESULT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${INSTALL_PPROF_TRUE}" && test -z "${INSTALL_PPROF_FALSE}"; then
+  as_fn_error $? "conditional \"INSTALL_PPROF\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_SIZED_DEALLOCATION_TRUE}" && test -z "${HAVE_SIZED_DEALLOCATION_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_SIZED_DEALLOCATION\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_F_ALIGNED_NEW_TRUE}" && test -z "${HAVE_F_ALIGNED_NEW_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_F_ALIGNED_NEW\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_EMERGENCY_MALLOC_TRUE}" && test -z "${BUILD_EMERGENCY_MALLOC_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_EMERGENCY_MALLOC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE}" && test -z "${HAVE_PTHREAD_DESPITE_ASKING_FOR_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_PTHREAD_DESPITE_ASKING_FOR\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${MINGW_TRUE}" && test -z "${MINGW_FALSE}"; then
+  as_fn_error $? "conditional \"MINGW\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${OSX_TRUE}" && test -z "${OSX_FALSE}"; then
+  as_fn_error $? "conditional \"OSX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_CPU_PROFILER_TRUE}" && test -z "${WITH_CPU_PROFILER_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_CPU_PROFILER\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_HEAP_PROFILER_TRUE}" && test -z "${WITH_HEAP_PROFILER_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_HEAP_PROFILER\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_HEAP_CHECKER_TRUE}" && test -z "${WITH_HEAP_CHECKER_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_HEAP_CHECKER\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_DEBUGALLOC_TRUE}" && test -z "${WITH_DEBUGALLOC_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_DEBUGALLOC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_HEAP_PROFILER_OR_CHECKER_TRUE}" && test -z "${WITH_HEAP_PROFILER_OR_CHECKER_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_HEAP_PROFILER_OR_CHECKER\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_STACK_TRACE_TRUE}" && test -z "${WITH_STACK_TRACE_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_STACK_TRACE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by gperftools $as_me 2.9.1, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+      --header=FILE[:TEMPLATE]
+                   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to ."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+gperftools config.status 2.9.1
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+AWK='$AWK'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h)
+    # Conflict between --help and --header
+    as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
+  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+#
+# INIT-COMMANDS
+#
+AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
+
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
+macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
+enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`'
+enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
+pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
+enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
+shared_archive_member_spec='`$ECHO "$shared_archive_member_spec" | $SED "$delay_single_quote_subst"`'
+SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
+ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
+PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
+host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
+host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
+host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
+build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
+build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`'
+build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
+SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`'
+Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
+GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
+EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
+FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
+LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
+NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
+LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
+max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
+ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
+exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
+lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
+lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
+lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`'
+reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
+reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
+OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
+deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
+file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
+file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`'
+want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`'
+DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`'
+sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`'
+AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
+AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
+archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`'
+STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
+RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
+old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
+lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
+CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
+CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
+compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
+GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_import='`$ECHO "$lt_cv_sys_global_symbol_to_import" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
+lt_cv_nm_interface='`$ECHO "$lt_cv_nm_interface" | $SED "$delay_single_quote_subst"`'
+nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
+lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
+lt_cv_truncate_bin='`$ECHO "$lt_cv_truncate_bin" | $SED "$delay_single_quote_subst"`'
+objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
+MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
+need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
+MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`'
+DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
+NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
+LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
+OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
+OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
+libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
+shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
+extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
+hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
+inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
+always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
+include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
+prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
+postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`'
+file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
+variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
+need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
+need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
+version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
+runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
+libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
+library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
+soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
+install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
+postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
+finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
+hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
+sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
+configure_time_dlsearch_path='`$ECHO "$configure_time_dlsearch_path" | $SED "$delay_single_quote_subst"`'
+configure_time_lt_sys_library_path='`$ECHO "$configure_time_lt_sys_library_path" | $SED "$delay_single_quote_subst"`'
+hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
+enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
+old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
+striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`'
+predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`'
+postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`'
+predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`'
+postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`'
+LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`'
+reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`'
+reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`'
+GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`'
+inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`'
+always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+postlink_cmds_CXX='`$ECHO "$postlink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`'
+predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`'
+postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`'
+
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in SHELL \
+ECHO \
+PATH_SEPARATOR \
+SED \
+GREP \
+EGREP \
+FGREP \
+LD \
+NM \
+LN_S \
+lt_SP2NL \
+lt_NL2SP \
+reload_flag \
+OBJDUMP \
+deplibs_check_method \
+file_magic_cmd \
+file_magic_glob \
+want_nocaseglob \
+DLLTOOL \
+sharedlib_from_linklib_cmd \
+AR \
+AR_FLAGS \
+archiver_list_spec \
+STRIP \
+RANLIB \
+CC \
+CFLAGS \
+compiler \
+lt_cv_sys_global_symbol_pipe \
+lt_cv_sys_global_symbol_to_cdecl \
+lt_cv_sys_global_symbol_to_import \
+lt_cv_sys_global_symbol_to_c_name_address \
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
+lt_cv_nm_interface \
+nm_file_list_spec \
+lt_cv_truncate_bin \
+lt_prog_compiler_no_builtin_flag \
+lt_prog_compiler_pic \
+lt_prog_compiler_wl \
+lt_prog_compiler_static \
+lt_cv_prog_compiler_c_o \
+need_locks \
+MANIFEST_TOOL \
+DSYMUTIL \
+NMEDIT \
+LIPO \
+OTOOL \
+OTOOL64 \
+shrext_cmds \
+export_dynamic_flag_spec \
+whole_archive_flag_spec \
+compiler_needs_object \
+with_gnu_ld \
+allow_undefined_flag \
+no_undefined_flag \
+hardcode_libdir_flag_spec \
+hardcode_libdir_separator \
+exclude_expsyms \
+include_expsyms \
+file_list_spec \
+variables_saved_for_relink \
+libname_spec \
+library_names_spec \
+soname_spec \
+install_override_mode \
+finish_eval \
+old_striplib \
+striplib \
+compiler_lib_search_dirs \
+predep_objects \
+postdep_objects \
+predeps \
+postdeps \
+compiler_lib_search_path \
+LD_CXX \
+reload_flag_CXX \
+compiler_CXX \
+lt_prog_compiler_no_builtin_flag_CXX \
+lt_prog_compiler_pic_CXX \
+lt_prog_compiler_wl_CXX \
+lt_prog_compiler_static_CXX \
+lt_cv_prog_compiler_c_o_CXX \
+export_dynamic_flag_spec_CXX \
+whole_archive_flag_spec_CXX \
+compiler_needs_object_CXX \
+with_gnu_ld_CXX \
+allow_undefined_flag_CXX \
+no_undefined_flag_CXX \
+hardcode_libdir_flag_spec_CXX \
+hardcode_libdir_separator_CXX \
+exclude_expsyms_CXX \
+include_expsyms_CXX \
+file_list_spec_CXX \
+compiler_lib_search_dirs_CXX \
+predep_objects_CXX \
+postdep_objects_CXX \
+predeps_CXX \
+postdeps_CXX \
+compiler_lib_search_path_CXX; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in reload_cmds \
+old_postinstall_cmds \
+old_postuninstall_cmds \
+old_archive_cmds \
+extract_expsyms_cmds \
+old_archive_from_new_cmds \
+old_archive_from_expsyms_cmds \
+archive_cmds \
+archive_expsym_cmds \
+module_cmds \
+module_expsym_cmds \
+export_symbols_cmds \
+prelink_cmds \
+postlink_cmds \
+postinstall_cmds \
+postuninstall_cmds \
+finish_cmds \
+sys_lib_search_path_spec \
+configure_time_dlsearch_path \
+configure_time_lt_sys_library_path \
+reload_cmds_CXX \
+old_archive_cmds_CXX \
+old_archive_from_new_cmds_CXX \
+old_archive_from_expsyms_cmds_CXX \
+archive_cmds_CXX \
+archive_expsym_cmds_CXX \
+module_cmds_CXX \
+module_expsym_cmds_CXX \
+export_symbols_cmds_CXX \
+prelink_cmds_CXX \
+postlink_cmds_CXX; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+ac_aux_dir='$ac_aux_dir'
+
+# See if we are running on zsh, and set the options that allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+
+
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    RM='$RM'
+    ofile='$ofile'
+
+
+
+
+
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "src/config.h") CONFIG_HEADERS="$CONFIG_HEADERS src/config.h" ;;
+    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+    "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "src/gperftools/tcmalloc.h") CONFIG_FILES="$CONFIG_FILES src/gperftools/tcmalloc.h" ;;
+    "src/windows/gperftools/tcmalloc.h") CONFIG_FILES="$CONFIG_FILES src/windows/gperftools/tcmalloc.h" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' >$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+# Set up the scripts for CONFIG_HEADERS section.
+# No need to generate them if there are no CONFIG_HEADERS.
+# This happens for instance with `./config.status Makefile'.
+if test -n "$CONFIG_HEADERS"; then
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
+BEGIN {
+_ACEOF
+
+# Transform confdefs.h into an awk script `defines.awk', embedded as
+# here-document in config.status, that substitutes the proper values into
+# config.h.in to produce config.h.
+
+# Create a delimiter string that does not exist in confdefs.h, to ease
+# handling of long lines.
+ac_delim='%!_!# '
+for ac_last_try in false false :; do
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+
+# For the awk script, D is an array of macro values keyed by name,
+# likewise P contains macro parameters if any.  Preserve backslash
+# newline sequences.
+
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+sed -n '
+s/.\{148\}/&'"$ac_delim"'/g
+t rset
+:rset
+s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
+t def
+d
+:def
+s/\\$//
+t bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3"/p
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
+d
+:bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3\\\\\\n"\\/p
+t cont
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
+t cont
+d
+:cont
+n
+s/.\{148\}/&'"$ac_delim"'/g
+t clear
+:clear
+s/\\$//
+t bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/"/p
+d
+:bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
+b cont
+' >$CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  for (key in D) D_is_set[key] = 1
+  FS = ""
+}
+/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
+  line = \$ 0
+  split(line, arg, " ")
+  if (arg[1] == "#") {
+    defundef = arg[2]
+    mac1 = arg[3]
+  } else {
+    defundef = substr(arg[1], 2)
+    mac1 = arg[2]
+  }
+  split(mac1, mac2, "(") #)
+  macro = mac2[1]
+  prefix = substr(line, 1, index(line, defundef) - 1)
+  if (D_is_set[macro]) {
+    # Preserve the white space surrounding the "#".
+    print prefix "define", macro P[macro] D[macro]
+    next
+  } else {
+    # Replace #undef with comments.  This is necessary, for example,
+    # in the case of _POSIX_SOURCE, which is predefined and required
+    # on some systems where configure will not decide to define it.
+    if (defundef == "undef") {
+      print "/*", prefix defundef, macro, "*/"
+      next
+    }
+  }
+}
+{ print }
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+fi # test -n "$CONFIG_HEADERS"
+
+
+eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+  :H)
+  #
+  # CONFIG_HEADER
+  #
+  if test x"$ac_file" != x-; then
+    {
+      $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+$as_echo "$as_me: $ac_file is unchanged" >&6;}
+    else
+      rm -f "$ac_file"
+      mv "$ac_tmp/config.h" "$ac_file" \
+	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    fi
+  else
+    $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+      || as_fn_error $? "could not create -" "$LINENO" 5
+  fi
+# Compute "$ac_file"'s index in $config_headers.
+_am_arg="$ac_file"
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$_am_arg" : 'X\(//\)[^/]' \| \
+	 X"$_am_arg" : 'X\(//\)$' \| \
+	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$_am_arg" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`/stamp-h$_am_stamp_count
+ ;;
+
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+$as_echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
+  # Older Autoconf quotes --file arguments for eval, but not when files
+  # are listed without --file.  Let's play safe and only enable the eval
+  # if we detect the quoting.
+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  case $CONFIG_FILES in #(
+  *\'*) :
+    eval set x "$CONFIG_FILES" ;; #(
+  *) :
+    set x $CONFIG_FILES ;; #(
+  *) :
+     ;;
+esac
+  shift
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
+  do
+    # Strip MF so we end up with the name of the file.
+    am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`$as_dirname -- "$am_mf" ||
+$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$am_mf" : 'X\(//\)[^/]' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$am_mf" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    am_filepart=`$as_basename -- "$am_mf" ||
+$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$am_mf" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    { echo "$as_me:$LINENO: cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles" >&5
+   (cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } || am_rc=$?
+  done
+  if test $am_rc -ne 0; then
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  If GNU make was not used, consider
+    re-running the configure script with MAKE=\"gmake\" (or whatever is
+    necessary).  You can also try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+  { am_dirpart=; unset am_dirpart;}
+  { am_filepart=; unset am_filepart;}
+  { am_mf=; unset am_mf;}
+  { am_rc=; unset am_rc;}
+  rm -f conftest-deps.mk
+}
+ ;;
+    "libtool":C)
+
+    # See if we are running on zsh, and set the options that allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}"; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile=${ofile}T
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+# Generated automatically by $as_me ($PACKAGE) $VERSION
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the  same
+# distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+
+# The names of the tagged configurations supported by this script.
+available_tags='CXX '
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Which release of libtool.m4 was used?
+macro_version=$macro_version
+macro_revision=$macro_revision
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# What type of objects to build.
+pic_mode=$pic_mode
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# Shared archive member basename,for filename based shared library versioning on AIX.
+shared_archive_member_spec=$shared_archive_member_spec
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# An echo program that protects backslashes.
+ECHO=$lt_ECHO
+
+# The PATH separator for the build system.
+PATH_SEPARATOR=$lt_PATH_SEPARATOR
+
+# The host system.
+host_alias=$host_alias
+host=$host
+host_os=$host_os
+
+# The build system.
+build_alias=$build_alias
+build=$build
+build_os=$build_os
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="\$SED -e 1s/^X//"
+
+# A grep program that handles long lines.
+GREP=$lt_GREP
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# A literal string matcher.
+FGREP=$lt_FGREP
+
+# A BSD- or MS-compatible name lister.
+NM=$lt_NM
+
+# Whether we need soft or hard links.
+LN_S=$lt_LN_S
+
+# What is the maximum length of a command?
+max_cmd_len=$max_cmd_len
+
+# Object file suffix (normally "o").
+objext=$ac_objext
+
+# Executable file suffix (normally "").
+exeext=$exeext
+
+# whether the shell understands "unset".
+lt_unset=$lt_unset
+
+# turn spaces into newlines.
+SP2NL=$lt_lt_SP2NL
+
+# turn newlines into spaces.
+NL2SP=$lt_lt_NL2SP
+
+# convert \$build file names to \$host format.
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+
+# convert \$build files to toolchain format.
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+
+# An object symbol dumper.
+OBJDUMP=$lt_OBJDUMP
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method = "file_magic".
+file_magic_cmd=$lt_file_magic_cmd
+
+# How to find potential files when deplibs_check_method = "file_magic".
+file_magic_glob=$lt_file_magic_glob
+
+# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
+want_nocaseglob=$lt_want_nocaseglob
+
+# DLL creation program.
+DLLTOOL=$lt_DLLTOOL
+
+# Command to associate shared and link libraries.
+sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd
+
+# The archiver.
+AR=$lt_AR
+
+# Flags to create an archive.
+AR_FLAGS=$lt_AR_FLAGS
+
+# How to feed a file listing to the archiver.
+archiver_list_spec=$lt_archiver_list_spec
+
+# A symbol stripping program.
+STRIP=$lt_STRIP
+
+# Commands used to install an old-style archive.
+RANLIB=$lt_RANLIB
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Whether to use a lock for old archive extraction.
+lock_old_archive_extraction=$lock_old_archive_extraction
+
+# A C compiler.
+LTCC=$lt_CC
+
+# LTCC compiler flags.
+LTCFLAGS=$lt_CFLAGS
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration.
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm into a list of symbols to manually relocate.
+global_symbol_to_import=$lt_lt_cv_sys_global_symbol_to_import
+
+# Transform the output of nm in a C name address pair.
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# Transform the output of nm in a C name address pair when lib prefix is needed.
+global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
+
+# The name lister interface.
+nm_interface=$lt_lt_cv_nm_interface
+
+# Specify filename containing input files for \$NM.
+nm_file_list_spec=$lt_nm_file_list_spec
+
+# The root where to search for dependent libraries,and where our libraries should be installed.
+lt_sysroot=$lt_sysroot
+
+# Command to truncate a binary pipe.
+lt_truncate_bin=$lt_lt_cv_truncate_bin
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# Used to examine libraries when file_magic_cmd begins with "file".
+MAGIC_CMD=$MAGIC_CMD
+
+# Must we lock files when doing compilation?
+need_locks=$lt_need_locks
+
+# Manifest tool.
+MANIFEST_TOOL=$lt_MANIFEST_TOOL
+
+# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
+DSYMUTIL=$lt_DSYMUTIL
+
+# Tool to change global to local symbols on Mac OS X.
+NMEDIT=$lt_NMEDIT
+
+# Tool to manipulate fat objects and archives on Mac OS X.
+LIPO=$lt_LIPO
+
+# ldd/readelf like tool for Mach-O binaries on Mac OS X.
+OTOOL=$lt_OTOOL
+
+# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
+OTOOL64=$lt_OTOOL64
+
+# Old archive suffix (normally "a").
+libext=$libext
+
+# Shared library suffix (normally ".so").
+shrext_cmds=$lt_shrext_cmds
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at link time.
+variables_saved_for_relink=$lt_variables_saved_for_relink
+
+# Do we need the "lib" prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Library versioning type.
+version_type=$version_type
+
+# Shared library runtime path variable.
+runpath_var=$runpath_var
+
+# Shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Permission mode override for installation of shared libraries.
+install_override_mode=$lt_install_override_mode
+
+# Command to use after installation of a shared archive.
+postinstall_cmds=$lt_postinstall_cmds
+
+# Command to use after uninstallation of a shared archive.
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# As "finish_cmds", except a single script fragment to be evaled but
+# not shown.
+finish_eval=$lt_finish_eval
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Compile-time system search path for libraries.
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Detected run-time system search path for libraries.
+sys_lib_dlsearch_path_spec=$lt_configure_time_dlsearch_path
+
+# Explicit LT_SYS_LIBRARY_PATH set during ./configure time.
+configure_time_lt_sys_library_path=$lt_configure_time_lt_sys_library_path
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+
+# The linker used to build libraries.
+LD=$lt_LD
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds
+
+# A language specific compiler.
+CC=$lt_compiler
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds
+archive_expsym_cmds=$lt_archive_expsym_cmds
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds
+module_expsym_cmds=$lt_module_expsym_cmds
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects
+postdep_objects=$lt_postdep_objects
+predeps=$lt_predeps
+postdeps=$lt_postdeps
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path
+
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+    cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x$2 in
+    x)
+        ;;
+    *:)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+        ;;
+    x:*)
+        eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+        ;;
+    *)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+
+
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in $*""; do
+      case $cc_temp in
+        compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+        distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test set != "${COLLECT_NAMES+set}"; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+
+ltmain=$ac_aux_dir/ltmain.sh
+
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+
+
+    cat <<_LT_EOF >> "$ofile"
+
+# ### BEGIN LIBTOOL TAG CONFIG: CXX
+
+# The linker used to build libraries.
+LD=$lt_LD_CXX
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag_CXX
+reload_cmds=$lt_reload_cmds_CXX
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds_CXX
+
+# A language specific compiler.
+CC=$lt_compiler_CXX
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC_CXX
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_CXX
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_CXX
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_CXX
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_CXX
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object_CXX
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds_CXX
+archive_expsym_cmds=$lt_archive_expsym_cmds_CXX
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds_CXX
+module_expsym_cmds=$lt_module_expsym_cmds_CXX
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld_CXX
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_CXX
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_CXX
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct_CXX
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute_CXX
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L_CXX
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic_CXX
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath_CXX
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_CXX
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols_CXX
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_CXX
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_CXX
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_CXX
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds_CXX
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds_CXX
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec_CXX
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_CXX
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects_CXX
+postdep_objects=$lt_postdep_objects_CXX
+predeps=$lt_predeps_CXX
+postdeps=$lt_postdeps_CXX
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_CXX
+
+# ### END LIBTOOL TAG CONFIG: CXX
+_LT_EOF
+
+ ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
+
+if test "$omit_fp_by_default" = yes && test "x$enable_frame_pointers" != xyes && test "x$UNWIND_LIBS" = x && test "x$enable_minimal" != xyes; then :
+  if test "x$perftools_cv_have_unwind_backtrace" = xyes; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: No frame pointers and no libunwind. Using experimental backtrace capturing via libgcc. Expect crashy cpu profiler." >&5
+$as_echo "$as_me: WARNING: No frame pointers and no libunwind. Using experimental backtrace capturing via libgcc. Expect crashy cpu profiler." >&2;}
+else
+  if test "x$enable_backtrace" = xyes; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: No frame pointers and no libunwind.  Using experimental backtrace(). Expect crashy cpu profiler." >&5
+$as_echo "$as_me: WARNING: No frame pointers and no libunwind.  Using experimental backtrace(). Expect crashy cpu profiler." >&2;}
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "No frame pointers and no libunwind. The compilation will fail
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+fi
+fi
diff --git a/trunk/3rdparty/gperftools-2-fit/configure.ac b/trunk/3rdparty/gperftools-2-fit/configure.ac
new file mode 100644
index 000000000..c419d5fb2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/configure.ac
@@ -0,0 +1,657 @@
+## Process this file with autoconf to produce configure.
+## In general, the safest way to proceed is to run ./autogen.sh
+
+# make sure we're interpreted by some minimal autoconf
+AC_PREREQ([2.59])
+
+AC_INIT([gperftools],[2.9.1],[gperftools@googlegroups.com])
+# Update this value for every release!  (A:B:C will map to foo.so.(A-C).C.B)
+# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
+TCMALLOC_SO_VERSION=9:9:5
+PROFILER_SO_VERSION=5:4:5
+TCMALLOC_AND_PROFILER_SO_VERSION=10:4:6
+
+AC_SUBST(TCMALLOC_SO_VERSION)
+AC_SUBST(PROFILER_SO_VERSION)
+AC_SUBST(TCMALLOC_AND_PROFILER_SO_VERSION)
+
+# The argument here is just something that should be in the current directory
+# (for sanity checking)
+AC_CONFIG_SRCDIR(README)
+AC_CONFIG_MACRO_DIR([m4])
+AC_CANONICAL_HOST
+AM_INIT_AUTOMAKE([dist-zip])
+AC_CONFIG_HEADERS([src/config.h])
+
+AM_MAINTAINER_MODE()
+# Export the version information (for tc_version and friends)
+TC_VERSION_MAJOR=`expr "$PACKAGE_VERSION" : '\([[0-9]]*\)'`
+TC_VERSION_MINOR=`expr "$PACKAGE_VERSION" : '[[0-9]]*\.\([[0-9]]*\)'`
+TC_VERSION_PATCH=`expr "$PACKAGE_VERSION" : '[[0-9]]*\.[[0-9]]*\(.*\)$'`
+AC_SUBST(TC_VERSION_MAJOR)
+AC_SUBST(TC_VERSION_MINOR)
+AC_SUBST(TC_VERSION_PATCH)
+AC_SUBST(PACKAGE_STRING)
+
+AX_GENERATE_CHANGELOG
+
+# The user can choose not to compile in the heap-profiler, the
+# heap-checker, or the cpu-profiler.  There's also the possibility
+# for a 'fully minimal' compile, which leaves out the stacktrace
+# code as well.  By default, we include all of these that the
+# target system supports.
+default_enable_cpu_profiler=yes
+default_enable_heap_profiler=yes
+default_enable_heap_checker=yes
+default_enable_debugalloc=yes
+default_enable_minimal=no
+default_tcmalloc_alignment=16
+need_nanosleep=yes   # Used later, to decide if to run ACX_NANOSLEEP
+case "$host" in
+   *-mingw*) default_enable_minimal=yes; default_enable_debugalloc=no;
+             need_nanosleep=no;;
+   *-cygwin*) default_enable_heap_checker=no; default_enable_cpu_profiler=no;;
+   *-freebsd*) default_enable_heap_checker=no;;
+   *-darwin*) default_enable_heap_checker=no;;
+esac
+
+# Currently only backtrace works on s390 and OSX.
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [
+#if !defined(__s390__) && !defined(__APPLE__)
+#error not s390 and not osx
+#endif
+return 1
+])],
+                  [default_enable_libunwind=no
+                   default_enable_backtrace=yes],
+                  [default_enable_libunwind=yes
+                   default_enable_backtrace=no])
+
+# Disable libunwind linking on ppc64 by default.
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __PPC64__])],
+                  [default_enable_libunwind=no
+                   default_tcmalloc_pagesize=64],
+                  [default_enable_libunwind=yes
+                   default_tcmalloc_pagesize=8])
+
+AC_ARG_ENABLE([cpu-profiler],
+              [AS_HELP_STRING([--disable-cpu-profiler],
+                              [do not build the cpu profiler])],
+              [],
+              [enable_cpu_profiler="$default_enable_cpu_profiler"])
+AC_ARG_ENABLE([heap-profiler],
+              [AS_HELP_STRING([--disable-heap-profiler],
+                              [do not build the heap profiler])],
+              [],
+              [enable_heap_profiler="$default_enable_heap_profiler"])
+AC_ARG_ENABLE([heap-checker],
+              [AS_HELP_STRING([--disable-heap-checker],
+                              [do not build the heap checker])],
+              [],
+              [enable_heap_checker="$default_enable_heap_checker"])
+AC_ARG_ENABLE([debugalloc],
+              [AS_HELP_STRING([--disable-debugalloc],
+                              [do not build versions of libs with debugalloc])],
+              [],
+              [enable_debugalloc="$default_enable_debugalloc"])
+AC_ARG_ENABLE([minimal],
+              [AS_HELP_STRING([--enable-minimal],
+                              [build only tcmalloc-minimal (and maybe tcmalloc-minimal-debug)])],
+              [],
+              [enable_minimal="$default_enable_minimal"])
+if test "$enable_minimal" = yes; then
+  enable_cpu_profiler=no
+  enable_heap_profiler=no
+  enable_heap_checker=no
+fi
+AC_ARG_ENABLE([stacktrace-via-backtrace],
+              [AS_HELP_STRING([--enable-stacktrace-via-backtrace],
+                              [enable use of backtrace() for stacktrace capturing (may deadlock)])],
+              [enable_backtrace=yes],
+              [enable_backtrace="$default_enable_backtrace"])
+AC_ARG_ENABLE([libunwind],
+              [AS_HELP_STRING([--enable-libunwind],
+                              [enable libunwind linking])],
+              [],
+              [enable_libunwind="$default_enable_libunwind"])
+AC_ARG_WITH([tcmalloc-pagesize],
+            [AS_HELP_STRING([--with-tcmalloc-pagesize],
+                            [Set the tcmalloc internal page size to 4K, 8K, 16K, 32K, 64K, 128K or 256K])],
+            [],
+            [with_tcmalloc_pagesize=$default_tcmalloc_pagesize])
+AC_ARG_WITH([tcmalloc-alignment],
+            [AS_HELP_STRING([--with-tcmalloc-alignment],
+                            [Set the tcmalloc allocation alignment to 8 or 16 bytes])],
+            [],
+            [with_tcmalloc_alignment=$default_tcmalloc_alignment])
+
+case "$with_tcmalloc_pagesize" in
+  4)
+       AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 12);;
+  8)
+       #Default tcmalloc page size.
+       ;;
+  16)
+       AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 14);;
+  32)
+       AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 15);;
+  64)
+       AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 16);;
+  128)
+       AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 17);;
+  256)
+       AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 18,
+                 [Define internal page size for tcmalloc as number of left bitshift]);;
+  *)
+       AC_MSG_WARN([${with_tcmalloc_pagesize}K size not supported, using default tcmalloc page size.])
+esac
+case "$with_tcmalloc_alignment" in
+  8)
+       AC_DEFINE(TCMALLOC_ALIGN_8BYTES, 1,
+                 [Define 8 bytes of allocation alignment for tcmalloc]);;
+  16)
+       #Default tcmalloc allocation alignment.
+       ;;
+  *)
+       AC_MSG_WARN([${with_tcmalloc_alignment} bytes not supported, using default tcmalloc allocation alignment.])
+esac
+
+# Checks for programs.
+AC_PROG_CXX
+AC_PROG_CC
+AC_PROG_CPP
+AM_CONDITIONAL(GCC, test "$GCC" = yes)   # let the Makefile know if we're gcc
+AM_PROG_CC_C_O      # shrug: autogen.sh suddenly needs this for some reason
+
+AX_CXX_COMPILE_STDCXX(11, ext, mandatory)
+
+# Check if we have an objcopy installed that supports -W
+AC_CHECK_TOOL([OBJCOPY], [objcopy], [])
+AS_IF([test -n "$OBJCOPY"], [dnl
+  AC_CACHE_CHECK([if $OBJCOPY supports -W], gpt_cv_objcopy_weaken, [dnl
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([void foo() {} int main() {return 0;}])], [dnl
+      AS_IF(["$OBJCOPY" -W foo conftest$ac_exeext /dev/null],
+      	    [gpt_cv_objcopy_weaken=yes], [gpt_cv_objcopy_weaken=no])],
+    [gpt_cv_objcopy_weaken=no])])],
+  [gpt_cv_objcopy_weaken=no])
+AM_CONDITIONAL(HAVE_OBJCOPY_WEAKEN, test $gpt_cv_objcopy_weaken = yes)
+
+AC_PROG_LIBTOOL
+
+AX_C___ATTRIBUTE__
+
+AC_MSG_CHECKING(for __attribute__((aligned(N))) on functions)
+AC_CACHE_VAL(ac_cv___attribute__aligned_fn, [
+  AC_TRY_COMPILE(
+    [#include 
+     void foo(void) __attribute__((aligned(128)));
+     void foo(void) { exit(1); }],
+    [],
+    ac_cv___attribute__aligned_fn=yes,
+    ac_cv___attribute__aligned_fn=no
+  )])
+if test "$ac_cv___attribute__aligned_fn" = "yes"; then
+  AC_DEFINE(HAVE___ATTRIBUTE__ALIGNED_FN, 1, [define if your compiler supports alignment of functions])
+fi
+AC_MSG_RESULT($ac_cv___attribute__aligned_fn)
+
+
+# Check whether some low-level functions/files are available
+AC_HEADER_STDC
+
+# TODO(csilvers): we could remove a lot when WITH_CPU_PROFILER etc is "no".
+AC_CHECK_TYPES([struct mallinfo],,, [#include ])
+AC_CHECK_TYPES([Elf32_Versym],,, [#include ])   # for vdso_support.h
+AC_CHECK_FUNCS(sbrk)            # for tcmalloc to get memory
+AC_CHECK_FUNCS(__sbrk)          # for tcmalloc to get memory
+AC_CHECK_FUNCS(geteuid)         # for turning off services when run as root
+AC_CHECK_FUNCS(fork)            # for the pthread_atfork setup
+AC_CHECK_HEADERS(features.h)    # for vdso_support.h, __GLIBC__ macros
+AC_CHECK_HEADERS(malloc.h)      # some systems define stuff there, others not
+AC_CHECK_HEADERS(glob.h)        # for heap-profile-table (cleaning up profiles)
+AC_CHECK_HEADERS(execinfo.h)    # for stacktrace? and heapchecker_unittest
+AC_CHECK_HEADERS(unwind.h)      # for stacktrace
+AC_CHECK_HEADERS(sched.h)       # for being nice in our spinlock code
+AC_CHECK_HEADERS(conflict-signal.h)      # defined on some windows platforms?
+AC_CHECK_HEADERS(sys/prctl.h)   # for thread_lister (needed by leak-checker)
+AC_CHECK_HEADERS(linux/ptrace.h)# also needed by leak-checker
+AC_CHECK_HEADERS(sys/syscall.h)
+AC_CHECK_HEADERS(sys/socket.h)  # optional; for forking out to symbolizer
+AC_CHECK_HEADERS(sys/wait.h)    # optional; for forking out to symbolizer
+AC_CHECK_HEADERS(poll.h)        # optional; for forking out to symbolizer
+AC_CHECK_HEADERS(fcntl.h)       # for tcmalloc_unittest
+AC_CHECK_HEADERS(grp.h)         # for heapchecker_unittest
+AC_CHECK_HEADERS(pwd.h)         # for heapchecker_unittest
+AC_CHECK_HEADERS(sys/resource.h)         # for memalign_unittest.cc
+AC_CHECK_HEADERS(sys/cdefs.h)   # Where glibc defines __THROW
+# We also need /, but we get those from
+# AC_PC_FROM_UCONTEXT, below.
+
+# We override a lot of memory allocation routines, not all of which are
+# standard.  For those the system doesn't declare, we'll declare ourselves.
+AC_CHECK_DECLS([cfree,
+                posix_memalign,
+                memalign,
+                valloc,
+                pvalloc],,,
+               [#define _XOPEN_SOURCE 600
+                #include 
+                #include ])
+
+if test "$ac_cv_type_struct_mallinfo" = yes; then
+  AC_SUBST(ac_cv_have_struct_mallinfo, 1)   # gperftools/tcmalloc.h needs this
+else
+  AC_SUBST(ac_cv_have_struct_mallinfo, 0)
+fi
+
+# We hardcode HAVE_MMAP to 1. There are no interesting systems anymore
+# without functional mmap. And our windows (except mingw) builds
+# aren't using autoconf. So we keep HAVE_MMAP define, but only to
+# distingush windows and rest.
+case "$host" in
+   *-mingw*) default_emergency_malloc=no;;
+   *) default_emergency_malloc=yes
+      AC_DEFINE(HAVE_MMAP, 1, [Define to 1 if you have a working `mmap' system call.])
+esac
+
+# If AtomicWord != Atomic32, we need to define two versions of all the
+# atomicops functions.  If they're the same, we want to define only one.
+AC_MSG_CHECKING([if int32_t is the same type as intptr_t])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [[int32_t v1 = 0; intptr_t v2 = 0; return (&v1 - &v2)]])],[AC_DEFINE(INT32_EQUALS_INTPTR, 1,
+                          Define to 1 if int32_t is equivalent to intptr_t)
+                AC_MSG_RESULT([yes])],[AC_MSG_RESULT([no])])
+
+# We want to access the "PC" (Program Counter) register from a struct
+# ucontext.  Every system has its own way of doing that.  We try all the
+# possibilities we know about.  Note REG_PC should come first (REG_RIP
+# is also defined on solaris, but does the wrong thing).  But don't
+# bother if we're not doing cpu-profiling.
+# [*] means that we've not actually tested one of these systems
+if test "$enable_cpu_profiler" = yes; then
+  AC_PC_FROM_UCONTEXT(AC_MSG_WARN(Could not find the PC.  Will not try to compile libprofiler...);
+                      enable_cpu_profiler=no)
+fi
+
+# Some tests test the behavior of .so files, and only make sense for dynamic.
+AM_CONDITIONAL(ENABLE_STATIC, test "$enable_static" = yes)
+
+# We want to link in libunwind if it is enabled and exists.
+UNWIND_LIBS=
+if test "$enable_libunwind" = yes; then
+  AC_CHECK_HEADERS([libunwind.h],
+                   [AC_CHECK_LIB(unwind, backtrace, UNWIND_LIBS=-lunwind)
+                    will_use_libunwind=yes])
+fi
+AC_SUBST(UNWIND_LIBS)
+
+# On x86_64, instead of libunwind, we can choose to compile with frame-pointers.
+AC_ARG_ENABLE(frame_pointers,
+              AS_HELP_STRING([--enable-frame-pointers],
+                             [On x86_64 systems, compile with -fno-omit-frame-pointer (see INSTALL)]),
+	      , enable_frame_pointers=no)
+AM_CONDITIONAL(ENABLE_FRAME_POINTERS, test "$enable_frame_pointers" = yes)
+
+AC_MSG_CHECKING([for x86 without frame pointers])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __x86_64__ == 1 ? 0 : 1])],
+                  [is_x86_64=yes], [is_x86_64=no])
+omit_fp_by_default=no
+AS_IF([test "$is_x86_64" = yes], [omit_fp_by_default=yes])
+AM_CONDITIONAL(OMIT_FP_BY_DEFAULT,
+               test "$omit_fp_by_default" = yes)
+AC_MSG_RESULT([$omit_fp_by_default])
+
+# We need to know if we're i386 so we can turn on -mmms, which is not
+# on by default for i386 (it is for x86_64).
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __i386__ == 1 ? 0 : 1])],
+                  [is_i386=yes], [is_i386=no])
+AM_CONDITIONAL(I386, test "$is_i386" = yes)
+
+# See if the compiler supports -Wno-unused-result.
+# Newer ubuntu's turn on -D_FORTIFY_SOURCE=2, enabling
+# __attribute__((warn_unused_result)) for things like write(),
+# which we don't care about.
+AC_CACHE_CHECK([if the compiler supports -Wno-unused-result],
+               perftools_cv_w_no_unused_result,
+	       [OLD_CFLAGS="$CFLAGS"
+	        CFLAGS="$CFLAGS -Wno-error -Wunused-result"
+		# gcc doesn't warn about unknown flags unless it's
+		# also warning for some other purpose, hence the
+		# divide-by-0.  (We use -Wno-error to make sure the
+		# divide-by-0 doesn't cause this test to fail!)
+                #
+                # Also gcc is giving only warning for unknown flags of
+                # -Wno-XXX form. So in order to detect support we're
+                # using -Wunused-result which will cause gcc to give
+                # error which we can detect.
+	        AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, return 1/0)],
+	                          perftools_cv_w_no_unused_result=yes,
+                                  perftools_cv_w_no_unused_result=no)
+	        CFLAGS="$OLD_CFLAGS"])
+AM_CONDITIONAL(HAVE_W_NO_UNUSED_RESULT,
+	       test "$perftools_cv_w_no_unused_result" = yes)
+
+AC_ARG_ENABLE([deprecated-pprof],
+              [AS_HELP_STRING([--disable-deprecated-pprof],
+                [do not install old deprecated and unmaintained bundled pprof
+(see github.com/google/pprof for supported version)])],
+              [enable_pprof="$enableval"],
+              [enable_pprof=yes])
+
+AM_CONDITIONAL(INSTALL_PPROF,
+               [test "x$enable_pprof" = xyes])
+
+AC_ARG_ENABLE([dynamic-sized-delete-support],
+              [AS_HELP_STRING([--enable-dynamic-sized-delete-support],
+                [try to build run-time switch for sized delete operator])],
+              [enable_dyn_sized_delete="$enableval"],
+              [enable_dyn_sized_delete=no])
+
+AS_IF([test "x$enable_dyn_sized_delete" = xyes],
+      [AC_DEFINE([ENABLE_DYNAMIC_SIZED_DELETE], 1,
+                 [Build runtime detection for sized delete])])
+
+AC_ARG_ENABLE([sized-delete],
+              [AS_HELP_STRING([--enable-sized-delete],
+                              [build sized delete operator])],
+              [enable_sized_delete="$enableval"],
+              [enable_sized_delete="no"])
+AS_IF([test "x$enable_sized_delete" = xyes],
+        [AC_DEFINE([ENABLE_SIZED_DELETE], 1, [Build sized deletion operators])
+         AC_MSG_NOTICE([Will build sized deallocation operators])],
+      [AS_IF([test "x$enable_dyn_sized_delete" = xyes],
+             [AC_MSG_NOTICE([Will build dynamically detected sized deallocation operators])],
+             [AC_MSG_NOTICE([Will build sized deallocation operators that ignore size])])])
+
+AC_CACHE_CHECK([if C++ compiler supports -fsized-deallocation],
+               [perftools_cv_sized_deallocation_result],
+               [AC_LANG_PUSH(C++)
+                OLD_CXXFLAGS="$CXXFLAGS"
+                CXXFLAGS="$CXXFLAGS -fsized-deallocation"
+                AC_LINK_IFELSE([AC_LANG_PROGRAM(
+                    [[#include 
+#include ]],
+                    [[static void (* volatile ptr)(void *, size_t) = ::operator delete; (*ptr)(0, 256);]])],
+                 perftools_cv_sized_deallocation_result=yes,
+                 perftools_cv_sized_deallocation_result=no)
+                CXXFLAGS="$OLD_CXXFLAGS"
+                AC_LANG_POP(C++)])
+
+AM_CONDITIONAL(HAVE_SIZED_DEALLOCATION,
+               test "$perftools_cv_sized_deallocation_result" = yes)
+
+AC_CACHE_CHECK([if C++ compiler supports std::align_val_t without options],
+               [perftools_cv_have_align_val_t],
+               [AC_LANG_PUSH(C++)
+                AC_LINK_IFELSE([AC_LANG_PROGRAM(
+                    [[#include ]],
+                    [[(::operator delete)((::operator new)(256, std::align_val_t(16)), std::align_val_t(16))]])],
+                 perftools_cv_have_align_val_t=yes,
+                 perftools_cv_have_align_val_t=no)
+                AC_LANG_POP(C++)])
+
+AC_CACHE_CHECK([if C++ compiler supports -faligned-new],
+               [perftools_cv_have_f_aligned_new],
+               [AC_LANG_PUSH(C++)
+                OLD_CXXFLAGS="$CXXFLAGS"
+                CXXFLAGS="$CXXFLAGS -faligned-new"
+                AC_LINK_IFELSE([AC_LANG_PROGRAM(
+                    [[#include ]],
+                    [[(::operator delete)((::operator new)(256, std::align_val_t(16)), std::align_val_t(16))]])],
+                 perftools_cv_have_f_aligned_new=yes,
+                 perftools_cv_have_f_aligned_new=no)
+                CXXFLAGS="$OLD_CXXFLAGS"
+                AC_LANG_POP(C++)])
+
+AM_CONDITIONAL(HAVE_F_ALIGNED_NEW,
+               test "$perftools_cv_have_f_aligned_new" = yes)
+
+AS_IF([test "$perftools_cv_have_align_val_t" = yes || test "$perftools_cv_have_f_aligned_new" = yes],
+        [AC_DEFINE([ENABLE_ALIGNED_NEW_DELETE], 1, [Build new/delete operators for overaligned types])
+         AC_MSG_NOTICE([Will build new/delete operators for overaligned types])],
+         AC_MSG_NOTICE([Will not build new/delete operators for overaligned types]))
+
+if test "$perftools_cv_have_align_val_t" = yes || test "$perftools_cv_have_f_aligned_new" = yes; then
+  AC_SUBST(ac_cv_have_std_align_val_t, 1)   # gperftools/tcmalloc.h and windows/gperftools/tcmalloc.h need this
+else
+  AC_SUBST(ac_cv_have_std_align_val_t, 0)
+fi
+
+
+AC_CACHE_CHECK([if target has _Unwind_Backtrace],
+               [perftools_cv_have_unwind_backtrace],
+               [AC_LANG_PUSH(C++)
+                AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+                    [[#include 
+#if defined(__APPLE__)
+#error OSX _Unwind_Backtrace recurses back to malloc
+#endif
+]],
+                    [[&_Unwind_Backtrace]])],
+                 [perftools_cv_have_unwind_backtrace=yes],
+                 [perftools_cv_have_unwind_backtrace=no])
+                AC_LANG_POP(C++)])
+AS_IF([test "x$perftools_cv_have_unwind_backtrace" = xyes],
+      [AC_DEFINE(HAVE_UNWIND_BACKTRACE, 1, [Whether  contains _Unwind_Backtrace])])
+
+AS_IF([test "x$will_use_libunwind" = xyes],
+      [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __arm__])],
+                         [default_emergency_malloc=yes])])
+
+AC_ARG_ENABLE([emergency-malloc],
+              [AS_HELP_STRING([--enable-emergency-malloc],
+                              [build emergency malloc feature])],
+              [enable_emergency_malloc="$enableval"],
+              [enable_emergency_malloc="$default_emergency_malloc"])
+
+AM_CONDITIONAL(BUILD_EMERGENCY_MALLOC, [test "x$enable_emergency_malloc" = xyes])
+
+# Also make sure we get standard PRI... definitions, even with glibc.
+# We have to use AH_VERBATIM because we need the #ifdef guard (gcc buglet)
+AH_VERBATIM([__STDC_FORMAT_MACROS],
+            [/* C99 says: define this to get the PRI... macros from stdint.h */
+#ifndef __STDC_FORMAT_MACROS
+# define __STDC_FORMAT_MACROS 1
+#endif])
+
+# Check if __environ is available (for GetenvBeforeMain)
+AC_MSG_CHECKING([for __environ])
+AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ],
+                                [char **env = __environ])],
+               [AC_DEFINE(HAVE___ENVIRON, 1,
+                          [Define to 1 if compiler supports __environ])
+                AC_MSG_RESULT([yes])],
+               [AC_MSG_RESULT([no])])
+
+# If we support __thread, that can speed up tcmalloc a bit.
+# Note, however, that our code tickles a bug in gcc < 4.1.2
+# involving TLS and -fPIC (which our libraries will use) on x86:
+#   http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
+#
+# And mingw also does compile __thread but resultant code actually
+# fails to work correctly at least in some not so ancient version:
+# http://mingw-users.1079350.n2.nabble.com/gcc-4-4-multi-threaded-exception-handling-amp-thread-specifier-not-working-td3440749.html
+#
+# Also it was reported that earlier gcc versions for mips compile
+# __thread but it doesn't really work
+AC_MSG_CHECKING([for __thread])
+AC_LINK_IFELSE([AC_LANG_PROGRAM([#if defined(__GNUC__) && ((__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 1) || (__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ < 2))
+#error gcc has this bug: http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
+#elif defined(__MINGW32__)
+#error mingw doesnt really support tls
+#elif defined(__APPLE__)
+#error OSX __thread support is known to call malloc which makes it unsafe to use from malloc replacement
+#endif
+], [static __thread int p = 0])],
+               [AC_DEFINE(HAVE_TLS, 1,
+                          Define to 1 if compiler supports __thread)
+                AC_MSG_RESULT([yes])],
+               [AC_MSG_RESULT([no])])
+
+# Nanosleep requires extra libraries on some architectures (solaris).
+# This sets NANOSLEEP_LIBS.  nanosleep doesn't exist on mingw, which
+# is fine for us because we don't compile libspinlock, which uses it.
+if test "$need_nanosleep" = yes; then
+  ACX_NANOSLEEP
+  AC_SUBST(NANOSLEEP_LIBS)
+fi
+
+# Solaris 10 6/06 has a bug where /usr/sfw/lib/libstdc++.la is empty.
+# If so, we replace it with our own version.
+LIBSTDCXX_LA_LINKER_FLAG=
+if test -f /usr/sfw/lib/libstdc++.la && ! test -s /usr/sfw/lib/libstdc++.la
+then
+  LIBSTDCXX_LA_LINKER_FLAG='-L$(top_srcdir)/src/solaris'
+fi
+AC_SUBST(LIBSTDCXX_LA_LINKER_FLAG)
+
+# In fact, a lot of the code in this directory depends on pthreads
+ACX_PTHREAD
+
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+AC_MSG_CHECKING([whether pthread symbols are available in C++ without including pthread.h])
+acx_pthread_despite_asking_for=no
+AC_LINK_IFELSE(
+  [AC_LANG_PROGRAM([
+      #include 
+      #include 
+  ],[
+      pthread_t th; pthread_join(th, 0);
+  ])],[
+    acx_pthread_despite_asking_for=yes
+    AC_DEFINE(HAVE_PTHREAD_DESPITE_ASKING_FOR, 1, [defined to 1 if pthread symbols are exposed even without include pthread.h])
+    AC_DEFINE(HAVE_PTHREAD, 1, [])
+  ])
+AC_MSG_RESULT([$acx_pthread_despite_asking_for])
+AC_LANG_RESTORE
+
+AM_CONDITIONAL(HAVE_PTHREAD_DESPITE_ASKING_FOR, test x"$acx_pthread_despite_asking_for" = xyes)
+
+# Figure out where libc has program_invocation_name
+AC_PROGRAM_INVOCATION_NAME
+
+# Make the install prefix available, to figure out where to look for pprof
+AC_INSTALL_PREFIX
+
+dnl only very recent mingw has sleep and nanosleep
+case "$host" in
+   *-mingw*)
+     AC_CHECK_DECLS([sleep], [], [], [#include ])
+     AC_CHECK_DECLS([nanosleep], [], [], [#include ])
+   ;;
+esac
+
+if test "x$enable_backtrace" = xyes; then
+  AC_CHECK_DECLS([backtrace], [], [], [#include ])
+  save_LIBS=$LIBS
+  LIBS=$UNWIND_LIBS
+  AC_SEARCH_LIBS([backtrace], [execinfo])
+  UNWIND_LIBS=$LIBS
+  LIBS=$save_LIBS
+fi
+
+# For windows, this has a non-trivial value (__declspec(export)), but any
+# system that uses configure wants this to be the empty string.
+AC_DEFINE(PERFTOOLS_DLL_DECL,,
+          [Always the empty-string on non-windows systems.
+           On windows, should be "__declspec(dllexport)".
+	   This way, when we compile the dll, we export our functions/classes.
+	   It's safe to define this here because config.h is only used
+	   internally, to compile the DLL, and every DLL source file
+	   #includes "config.h" before anything else.])
+
+# In theory, config.h files shouldn't need a header guard, but we do,
+# because we (maybe) #include windows/mingw.h from within config.h,
+# and it #includes other .h files.  These all have header guards, so
+# the end result is if config.h is #included twice, its #undefs get
+# evaluated twice, but all the ones in mingw.h/etc only get evaluated
+# once, potentially causing trouble.  c.f.
+#   http://code.google.com/p/gperftools/issues/detail?id=246
+AH_TOP([
+#ifndef GPERFTOOLS_CONFIG_H_
+#define GPERFTOOLS_CONFIG_H_
+])
+
+AH_VERBATIM([PTHREADS_CRASHES_IF_RUN_TOO_EARLY],
+	    [/* Mark the systems where we know it's bad if pthreads runs too
+   early before main (before threads are initialized, presumably).  */
+#ifdef __FreeBSD__
+#define PTHREADS_CRASHES_IF_RUN_TOO_EARLY 1
+#endif])
+
+# MinGW uses autoconf, but also needs the windows shim routines
+# (since it doesn't have its own support for, say, pthreads).
+# This requires us to #include a special header file, and also to
+# link in some windows versions of .o's instead of the unix versions.
+#
+# Also, manually mark systems where we have to be careful how early
+# we run pthreads.  TODO(csilvers): turn this into an autoconf check.
+AH_BOTTOM([
+#ifdef __MINGW32__
+#include "windows/mingw.h"
+#endif
+
+#endif  /* #ifndef GPERFTOOLS_CONFIG_H_ */
+])
+AM_CONDITIONAL(MINGW, expr $host : '.*-mingw' >/dev/null 2>&1)
+AM_CONDITIONAL(OSX, expr $host : '.*-apple-darwin.*' >/dev/null 2>&1)
+
+# Export the --enable flags we set above.  We do this at the end so
+# other configure rules can enable or disable targets based on what
+# they find.
+AM_CONDITIONAL(WITH_CPU_PROFILER, test "$enable_cpu_profiler" = yes)
+AM_CONDITIONAL(WITH_HEAP_PROFILER, test "$enable_heap_profiler" = yes)
+AM_CONDITIONAL(WITH_HEAP_CHECKER, test "$enable_heap_checker" = yes)
+AM_CONDITIONAL(WITH_DEBUGALLOC, test "$enable_debugalloc" = yes)
+# We make tcmalloc.so if either heap-profiler or heap-checker is asked for.
+AM_CONDITIONAL(WITH_HEAP_PROFILER_OR_CHECKER,
+               test "$enable_heap_profiler" = yes -o \
+                    "$enable_heap_checker" = yes)
+# If we don't use any profilers, we don't need stack traces (or pprof)
+AM_CONDITIONAL(WITH_STACK_TRACE, test "$enable_cpu_profiler" = yes -o \
+                                      "$enable_heap_profiler" = yes -o \
+                                      "$enable_heap_checker" = yes)
+
+have_linux_sigev_thread_id=no
+AC_MSG_CHECKING([for Linux SIGEV_THREAD_ID])
+AC_COMPILE_IFELSE(
+        [AC_LANG_PROGRAM([[#include 
+                           #include ]],
+                         [[return SIGEV_THREAD_ID || CLOCK_THREAD_CPUTIME_ID || __linux;]])],
+        [AC_DEFINE(HAVE_LINUX_SIGEV_THREAD_ID, 1,
+                  [Define if this is Linux that has SIGEV_THREAD_ID])
+         have_linux_sigev_thread_id=yes
+         AC_MSG_RESULT([yes])],
+        [AC_MSG_RESULT([no])])
+
+# Disable large allocation report by default.
+AC_ARG_ENABLE([large-alloc-report],
+              [AS_HELP_STRING([--enable-large-alloc-report],
+                              [report very large allocations to stderr])],
+              [enable_large_alloc_report="$enableval"],
+              [enable_large_alloc_report=no])
+AS_IF([test "x$enable_large_alloc_report" = xyes],
+      [AC_DEFINE([ENABLE_LARGE_ALLOC_REPORT], 1, [report large allocation])])
+
+# Enable aggressive decommit by default
+AC_ARG_ENABLE([aggressive-decommit-by-default],
+              [AS_HELP_STRING([--enable-aggressive-decommit-by-default],
+                              [enable aggressive decommit by default])],
+              [enable_aggressive_decommit_by_default="$enableval"],
+              [enable_aggressive_decommit_by_default=no])
+AS_IF([test "x$enable_aggressive_decommit_by_default" = xyes],
+      [AC_DEFINE([ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT],
+                 1,
+                 [enable aggressive decommit by default])])
+
+# Write generated configuration file
+AC_CONFIG_FILES([Makefile
+                 src/gperftools/tcmalloc.h src/windows/gperftools/tcmalloc.h])
+AC_OUTPUT
+
+AS_IF([test "$omit_fp_by_default" = yes && test "x$enable_frame_pointers" != xyes && test "x$UNWIND_LIBS" = x && test "x$enable_minimal" != xyes],
+  [AS_IF([test "x$perftools_cv_have_unwind_backtrace" = xyes],
+    [AC_MSG_WARN([No frame pointers and no libunwind. Using experimental backtrace capturing via libgcc. Expect crashy cpu profiler.])],
+    [AS_IF([test "x$enable_backtrace" = xyes],
+      [AC_MSG_WARN([No frame pointers and no libunwind.  Using experimental backtrace(). Expect crashy cpu profiler.])],
+      [AC_MSG_FAILURE([No frame pointers and no libunwind. The compilation will fail])])])])
diff --git a/trunk/3rdparty/gperftools-2-fit/depcomp b/trunk/3rdparty/gperftools-2-fit/depcomp
new file mode 100755
index 000000000..6b391623c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/depcomp
@@ -0,0 +1,791 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2020 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva .
+
+case $1 in
+  '')
+    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+    exit 1;
+    ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+  depmode     Dependency tracking mode.
+  source      Source file read by 'PROGRAMS ARGS'.
+  object      Object file output by 'PROGRAMS ARGS'.
+  DEPDIR      directory where to store dependencies.
+  depfile     Dependency file to output.
+  tmpdepfile  Temporary file to use when outputting dependencies.
+  libtool     Whether libtool is used (yes/no).
+
+Report bugs to .
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "depcomp $scriptversion"
+    exit $?
+    ;;
+esac
+
+# Get the directory component of the given path, and save it in the
+# global variables '$dir'.  Note that this directory component will
+# be either empty or ending with a '/' character.  This is deliberate.
+set_dir_from ()
+{
+  case $1 in
+    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
+      *) dir=;;
+  esac
+}
+
+# Get the suffix-stripped basename of the given path, and save it the
+# global variable '$base'.
+set_base_from ()
+{
+  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
+}
+
+# If no dependency file was actually created by the compiler invocation,
+# we still have to create a dummy depfile, to avoid errors with the
+# Makefile "include basename.Plo" scheme.
+make_dummy_depfile ()
+{
+  echo "#dummy" > "$depfile"
+}
+
+# Factor out some common post-processing of the generated depfile.
+# Requires the auxiliary global variable '$tmpdepfile' to be set.
+aix_post_process_depfile ()
+{
+  # If the compiler actually managed to produce a dependency file,
+  # post-process it.
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form 'foo.o: dependency.h'.
+    # Do two passes, one to just change these to
+    #   $object: dependency.h
+    # and one to simply output
+    #   dependency.h:
+    # which is needed to avoid the deleted-header problem.
+    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
+      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
+    } > "$depfile"
+    rm -f "$tmpdepfile"
+  else
+    make_dummy_depfile
+  fi
+}
+
+# A tabulation character.
+tab='	'
+# A newline character.
+nl='
+'
+# Character ranges might be problematic outside the C locale.
+# These definitions help.
+upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
+lower=abcdefghijklmnopqrstuvwxyz
+digits=0123456789
+alpha=${upper}${lower}
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+  # This is just like dashmstdout with a different argument.
+  dashmflag=-xM
+  depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+  # This is just like msvisualcpp but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvisualcpp
+fi
+
+if test "$depmode" = msvc7msys; then
+  # This is just like msvc7 but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+  gccflag=-qmakedep=gcc,-MF
+  depmode=gcc
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am.  Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+  for arg
+  do
+    case $arg in
+    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+    *)  set fnord "$@" "$arg" ;;
+    esac
+    shift # fnord
+    shift # $arg
+  done
+  "$@"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).  Also, it might not be
+##   supported by the other compilers which use the 'gcc' depmode.
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The second -e expression handles DOS-style file names with drive
+  # letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the "deleted header file" problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+## Some versions of gcc put a space before the ':'.  On the theory
+## that the space means something, we add a space to the output as
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like '#:fec' to the end of the
+    # dependency line.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
+      | tr "$nl" ' ' >> "$depfile"
+    echo >> "$depfile"
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+      >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+xlc)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  In older versions, this file always lives in the
+  # current directory.  Also, the AIX compiler puts '$object:' at the
+  # start of each line; $object doesn't have directory information.
+  # Version 6 uses the directory in both cases.
+  set_dir_from "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$base.u
+    tmpdepfile3=$dir.libs/$base.u
+    "$@" -Wc,-M
+  else
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$dir$base.u
+    tmpdepfile3=$dir$base.u
+    "$@" -M
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  aix_post_process_depfile
+  ;;
+
+tcc)
+  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
+  # FIXME: That version still under development at the moment of writing.
+  #        Make that this statement remains true also for stable, released
+  #        versions.
+  # It will wrap lines (doesn't matter whether long or short) with a
+  # trailing '\', as in:
+  #
+  #   foo.o : \
+  #    foo.c \
+  #    foo.h \
+  #
+  # It will put a trailing '\' even on the last line, and will use leading
+  # spaces rather than leading tabs (at least since its commit 0394caf7
+  # "Emit spaces for -MD").
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
+  # We have to change lines of the first kind to '$object: \'.
+  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
+  # And for each line of the second kind, we have to emit a 'dep.h:'
+  # dummy dependency, to avoid the deleted-header problem.
+  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+## The order of this option in the case statement is important, since the
+## shell code in configure will try each of these formats in the order
+## listed in this file.  A plain '-MD' option would be understood by many
+## compilers, so we must ensure this comes after the gcc and icc options.
+pgcc)
+  # Portland's C compiler understands '-MD'.
+  # Will always output deps to 'file.d' where file is the root name of the
+  # source file under compilation, even if file resides in a subdirectory.
+  # The object file name does not affect the name of the '.d' file.
+  # pgcc 10.2 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using '\' :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+  set_dir_from "$object"
+  # Use the source, not the object, to determine the base name, since
+  # that's sadly what pgcc will do too.
+  set_base_from "$source"
+  tmpdepfile=$base.d
+
+  # For projects that build the same source file twice into different object
+  # files, the pgcc approach of using the *source* file root name can cause
+  # problems in parallel builds.  Use a locking strategy to avoid stomping on
+  # the same $tmpdepfile.
+  lockdir=$base.d-lock
+  trap "
+    echo '$0: caught signal, cleaning up...' >&2
+    rmdir '$lockdir'
+    exit 1
+  " 1 2 13 15
+  numtries=100
+  i=$numtries
+  while test $i -gt 0; do
+    # mkdir is a portable test-and-set.
+    if mkdir "$lockdir" 2>/dev/null; then
+      # This process acquired the lock.
+      "$@" -MD
+      stat=$?
+      # Release the lock.
+      rmdir "$lockdir"
+      break
+    else
+      # If the lock is being held by a different process, wait
+      # until the winning process is done or we timeout.
+      while test -d "$lockdir" && test $i -gt 0; do
+        sleep 1
+        i=`expr $i - 1`
+      done
+    fi
+    i=`expr $i - 1`
+  done
+  trap - 1 2 13 15
+  if test $i -le 0; then
+    echo "$0: failed to acquire lock after $numtries attempts" >&2
+    echo "$0: check lockdir '$lockdir'" >&2
+    exit 1
+  fi
+
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp2)
+  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+  # compilers, which have integrated preprocessors.  The correct option
+  # to use with these is +Maked; it writes dependencies to a file named
+  # 'foo.d', which lands next to the object file, wherever that
+  # happens to be.
+  # Much of this is similar to the tru64 case; see comments there.
+  set_dir_from  "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir.libs/$base.d
+    "$@" -Wc,+Maked
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    "$@" +Maked
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+     rm -f "$tmpdepfile1" "$tmpdepfile2"
+     exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
+    # Add 'dependent.h:' lines.
+    sed -ne '2,${
+               s/^ *//
+               s/ \\*$//
+               s/$/:/
+               p
+             }' "$tmpdepfile" >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile" "$tmpdepfile2"
+  ;;
+
+tru64)
+  # The Tru64 compiler uses -MD to generate dependencies as a side
+  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
+  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+  # dependencies in 'foo.d' instead, so we check for that too.
+  # Subdirectories are respected.
+  set_dir_from  "$object"
+  set_base_from "$object"
+
+  if test "$libtool" = yes; then
+    # Libtool generates 2 separate objects for the 2 libraries.  These
+    # two compilations output dependencies in $dir.libs/$base.o.d and
+    # in $dir$base.o.d.  We have to check for both files, because
+    # one of the two compilations can be disabled.  We should prefer
+    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+    # automatically cleaned when .libs/ is deleted, while ignoring
+    # the former would cause a distcleancheck panic.
+    tmpdepfile1=$dir$base.o.d          # libtool 1.5
+    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
+    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
+    "$@" -Wc,-MD
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    tmpdepfile3=$dir$base.d
+    "$@" -MD
+  fi
+
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  # Same post-processing that is required for AIX mode.
+  aix_post_process_depfile
+  ;;
+
+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
+  else
+    showIncludes=-showIncludes
+  fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The first sed program below extracts the file names and escapes
+  # backslashes for cygpath.  The second sed program outputs the file
+  # name when reading, but also accumulates all include files in the
+  # hold buffer in order to output them again at the end.  This only
+  # works with sed implementations that can handle large buffers.
+  sed < "$tmpdepfile" -n '
+/^Note: including file:  *\(.*\)/ {
+  s//\1/
+  s/\\/\\\\/g
+  p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/'"$tab"'\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/'"$tab"'/
+  G
+  p
+}' >> "$depfile"
+  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
+  rm -f "$tmpdepfile"
+  ;;
+
+msvc7msys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for ':'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
+  "$@" $dashmflag |
+    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this sed invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no eat=no
+  for arg
+  do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    if test $eat = yes; then
+      eat=no
+      continue
+    fi
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -arch)
+      eat=yes ;;
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix=`echo "$object" | sed 's/^.*\././'`
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  # makedepend may prepend the VPATH from the source file name to the object.
+  # No need to regex-escape $object, excess matching of '.' is harmless.
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process the last invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed '1,2d' "$tmpdepfile" \
+    | tr ' ' "$nl" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E \
+    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+    | sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+        set fnord "$@"
+        shift
+        shift
+        ;;
+    *)
+        set fnord "$@" "$arg"
+        shift
+        shift
+        ;;
+    esac
+  done
+  "$@" -E 2>/dev/null |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
+  echo "$tab" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvcmsys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/cpuprofile-fileformat.html b/trunk/3rdparty/gperftools-2-fit/docs/cpuprofile-fileformat.html
new file mode 100644
index 000000000..3f90e6bc7
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/cpuprofile-fileformat.html
@@ -0,0 +1,264 @@
+
+
+
+
+  
+  Google CPU Profiler Binary Data File Format
+
+
+
+
+
Google CPU Profiler Binary Data File Format

+
+

+  Last modified
+    
+

+
+
This file documents the binary data file format produced by the
+Google CPU Profiler.  For information about using the CPU Profiler,
+see its user guide.
+
+
The profiler source code, which generates files using this format, is at
+src/profiler.cc.
+
+
+
CPU Profile Data File Structure

+
+
CPU profile data files each consist of four parts, in order:
+
+
    
+  
  •  Binary header
+  
  •  Binary profile records
+  
  •  Binary trailer
+  
  •  Text list of mapped objects
+

+
+
The binary data is expressed in terms of "slots."  These are words
+large enough to hold the program's pointer type, i.e., for 32-bit
+programs they are 4 bytes in size, and for 64-bit programs they are 8
+bytes.  They are stored in the profile data file in the native byte
+order (i.e., little-endian for x86 and x86_64).
+
+
+
Binary Header

+
+
The binary header format is show below.  Values written by the
+profiler, along with requirements currently enforced by the analysis
+tools, are shown in parentheses.
+
+

+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
slotdata
0header count (0; must be 0)
1header slots after this one (3; must be >= 3)
2format version (0; must be 0)
3sampling period, in microseconds
4padding (0)

+
+
The headers currently generated for 32-bit and 64-bit little-endian
+(x86 and x86_64) profiles are shown below, for comparison.
+
+

+
+  
+    
+    
+    
+    
+    
+    
+  
+  
+    
+    
+    
+    
+    
+    
+  
+  
+    
+    
+    
+    
+    
+    
+  
+  
+    
+    
+    
+    
+    
+    
+  
+
hdr counthdr wordsversionsampling periodpad
32-bit or 64-bit (slots)030100000
32-bit (4-byte words in file)0x000000x000030x000000x027100x00000
64-bit LE (4-byte words in file)0x00000 0x000000x00003 0x000000x00000 0x000000x02710 0x000000x00000 0x00000

+
+
The contents are shown in terms of slots, and in terms of 4-byte
+words in the profile data file.  The slot contents for 32-bit and
+64-bit headers are identical.  For 32-bit profiles, the 4-byte word
+view matches the slot view.  For 64-bit profiles, each (8-byte) slot
+is shown as two 4-byte words, ordered as they would appear in the
+file.
+
+
The profiling tools examine the contents of the file and use the
+expected locations and values of the header words field to detect
+whether the file is 32-bit or 64-bit.
+
+
+
Binary Profile Records

+
+
The binary profile record format is shown below.
+
+

+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
+  
+    
+    
+
slotdata
0sample count, must be >= 1
1number of call chain PCs (num_pcs), must be >= 1
2 .. (num_pcs + 1)call chain PCs, most-recently-called function first.
+  

+
+
The total length of a given record is 2 + num_pcs.
+
+
Note that multiple profile records can be emitted by the profiler
+having an identical call chain.  In that case, analysis tools should
+sum the counts of all records having identical call chains.
+
+
Note: Some profile analysis tools terminate if they see
+any profile record with a call chain with its first entry
+having the address 0.  (This is similar to the binary trailer.)
+
+
Example

+
+This example shows the slots contained in a sample profile record.
+
+

+
+  
+    
+    
+    
+    
+    
+  
+
530xa00000xc00000xe0000

+
+
In this example, 5 ticks were received at PC 0xa0000, whose
+function had been called by the function containing 0xc0000, which had
+been called from the function containing 0xe0000.
+
+
+
Binary Trailer

+
+
The binary trailer consists of three slots of data with fixed
+values, shown below.
+
+

+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
+  
+    
+    
+  
+
slotvalue
00
11
20

+
+
Note that this is the same data that would contained in a profile
+record with sample count = 0, num_pcs = 1, and a one-element call
+chain containing the address 0.
+
+
+
Text List of Mapped Objects

+
+
The binary data in the file is followed immediately by a list of
+mapped objects.  This list consists of lines of text separated by
+newline characters.
+
+
Each line is one of the following types:
+
+
    
+  
  • Build specifier, starting with "build=".  For example:
+    
      build=/path/to/binary
    
+    Leading spaces on the line are ignored.
+
+  
  • Mapping line from ProcMapsIterator::FormatLine.  For example:
+    
      40000000-40015000 r-xp 00000000 03:01 12845071   /lib/ld-2.3.2.so
    
+    The first address must start at the beginning of the line.
+

+
+
Unrecognized lines should be ignored by analysis tools.
+
+
When processing the paths see in mapping lines, occurrences of
+$build followed by a non-word character (i.e., characters
+other than underscore or alphanumeric characters), should be replaced
+by the path given on the last build specifier line.
+
+

+
Chris Demetriou

+
+
+Last modified: Mon Aug 27 12:18:26 PDT 2007  (cgd)
+
+

+
+
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/cpuprofile.html b/trunk/3rdparty/gperftools-2-fit/docs/cpuprofile.html
new file mode 100644
index 000000000..c81feb6ae
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/cpuprofile.html
@@ -0,0 +1,536 @@
+
+
+
+
+  
+  Gperftools CPU Profiler
+
+
+
+
+

+  Last modified
+  
+

+
+
This is the CPU profiler we use at Google.  There are three parts
+to using it: linking the library into an application, running the
+code, and analyzing the output.

+
+
On the off-chance that you should need to understand it, the CPU
+profiler data file format is documented separately,
+here.
+
+
+
Linking in the Library

+
+
To install the CPU profiler into your executable, add
+-lprofiler to the link-time step for your executable.
+(It's also probably possible to add in the profiler at run-time using
+LD_PRELOAD, e.g.
+% env LD_PRELOAD="/usr/lib/libprofiler.so" <binary>,
+but this isn't necessarily recommended.)

+
+
This does not turn on CPU profiling; it just inserts the
+code.  For that reason, it's practical to just always link
+-lprofiler into a binary while developing; that's what we
+do at Google.  (However, since any user can turn on the profiler by
+setting an environment variable, it's not necessarily recommended to
+install profiler-linked binaries into a production, running
+system.)

+
+
+
Running the Code

+
+
There are several alternatives to actually turn on CPU profiling
+for a given run of an executable:

+
+
    
+  
  1.  
    Define the environment variable CPUPROFILE to the filename
+       to dump the profile to.  For instance, if you had a version of
+       /bin/ls that had been linked against libprofiler,
+       you could run:
    
+       
    % env CPUPROFILE=ls.prof /bin/ls
    
+  
    2. 
+  
  2.  
    In addition to defining the environment variable CPUPROFILE
+       you can also define CPUPROFILESIGNAL.  This allows profiling to be
+       controlled via the signal number that you specify.  The signal number
+       must be unused by the program under normal operation. Internally it
+       acts as a switch, triggered by the signal, which is off by default.
+       For instance, if you had a copy of /bin/chrome that had been
+       been linked against libprofiler, you could run:
    
+       
    % env CPUPROFILE=chrome.prof CPUPROFILESIGNAL=12 /bin/chrome &
    
+       
    You can then trigger profiling to start:
    
+       
    % killall -12 chrome
    
+	   
    Then after a period of time you can tell it to stop which will
+       generate the profile:
    
+       
    % killall -12 chrome
    
+  
    3. 
+  
  3.  
    In your code, bracket the code you want profiled in calls to
+       ProfilerStart() and ProfilerStop().
+       (These functions are declared in <gperftools/profiler.h>.)
+       ProfilerStart() will take
+       the profile-filename as an argument.
    
+  
    4. 
+

+
+
In Linux 2.6 and above, profiling works correctly with threads,
+automatically profiling all threads.  In Linux 2.4, profiling only
+profiles the main thread (due to a kernel bug involving itimers and
+threads).  Profiling works correctly with sub-processes: each child
+process gets its own profile with its own name (generated by combining
+CPUPROFILE with the child's process id).

+
+
For security reasons, CPU profiling will not write to a file -- and
+is thus not usable -- for setuid programs.

+
+
See the include-file gperftools/profiler.h for
+advanced-use functions, including ProfilerFlush() and
+ProfilerStartWithOptions().

+
+
+
Modifying Runtime Behavior

+
+
You can more finely control the behavior of the CPU profiler via
+environment variables.

+
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
CPUPROFILE_FREQUENCY=xdefault: 100
+    How many interrupts/second the cpu-profiler samples.
+  
CPUPROFILE_REALTIME=1default: [not set]
+    If set to any value (including 0 or the empty string), use
+    ITIMER_REAL instead of ITIMER_PROF to gather profiles.  In
+    general, ITIMER_REAL is not as accurate as ITIMER_PROF, and also
+    interacts badly with use of alarm(), so prefer ITIMER_PROF unless
+    you have a reason prefer ITIMER_REAL.
+  

+
+
+
Analyzing the Output

+
+
pprof is the script used to analyze a profile.  It has
+many output modes, both textual and graphical.  Some give just raw
+numbers, much like the -pg output of gcc,
+and others show the data in the form of a dependency graph.

+
+
pprof requires perl5 to be installed to run.
+It also requires dot to be installed for any of the
+graphical output routines, and gv to be installed for
+--gv mode (described below).
+

+
+
Here are some ways to call pprof.  These are described in more
+detail below.

+
+
+% pprof /bin/ls ls.prof
+                       Enters "interactive" mode
+% pprof --text /bin/ls ls.prof
+                       Outputs one line per procedure
+% pprof --gv /bin/ls ls.prof
+                       Displays annotated call-graph via 'gv'
+% pprof --gv --focus=Mutex /bin/ls ls.prof
+                       Restricts to code paths including a .*Mutex.* entry
+% pprof --gv --focus=Mutex --ignore=string /bin/ls ls.prof
+                       Code paths including Mutex but not string
+% pprof --list=getdir /bin/ls ls.prof
+                       (Per-line) annotated source listing for getdir()
+% pprof --disasm=getdir /bin/ls ls.prof
+                       (Per-PC) annotated disassembly for getdir()
+% pprof --text localhost:1234
+                       Outputs one line per procedure for localhost:1234
+% pprof --callgrind /bin/ls ls.prof
+                       Outputs the call information in callgrind format
+

+
+
+
Analyzing Text Output

+
+
Text mode has lines of output that look like this:

+
+       14   2.1%  17.2%       58   8.7% std::_Rb_tree::find
+

+
+
Here is how to interpret the columns:

+
    
+  
  1.  Number of profiling samples in this function
+  
  2.  Percentage of profiling samples in this function
+  
  3.  Percentage of profiling samples in the functions printed so far
+  
  4.  Number of profiling samples in this function and its callees
+  
  5.  Percentage of profiling samples in this function and its callees
+  
  6.  Function name
+

+
+
Analyzing Callgrind Output

+
+
Use kcachegrind to 
+analyze your callgrind output:

+
+% pprof --callgrind /bin/ls ls.prof > ls.callgrind
+% kcachegrind ls.callgrind
+

+
+
The cost is specified in 'hits', i.e. how many times a function
+appears in the recorded call stack information. The 'calls' from
+function a to b record how many times function b was found in the
+stack traces directly below function a.

+
+
Tip: if you use a debug build the output will include file and line
+number information and kcachegrind will show an annotated source
+code view.

+
+
Node Information

+
+
In the various graphical modes of pprof, the output is a call graph
+annotated with timing information, like so:

+
+
+

+   
+

+
+
+
Each node represents a procedure.  The directed edges indicate
+caller to callee relations.  Each node is formatted as follows:

+
+
+Class Name
+Method Name
+local (percentage)
+of cumulative (percentage)
+

+
+
The last one or two lines contains the timing information.  (The
+profiling is done via a sampling method, where by default we take 100
+samples a second.  Therefor one unit of time in the output corresponds
+to about 10 milliseconds of execution time.) The "local" time is the
+time spent executing the instructions directly contained in the
+procedure (and in any other procedures that were inlined into the
+procedure).  The "cumulative" time is the sum of the "local" time and
+the time spent in any callees.  If the cumulative time is the same as
+the local time, it is not printed.

+
+
For instance, the timing information for test_main_thread()
+indicates that 155 units (about 1.55 seconds) were spent executing the
+code in test_main_thread() and 200 units were spent while
+executing test_main_thread() and its callees such as
+snprintf().

+
+
The size of the node is proportional to the local count.  The
+percentage displayed in the node corresponds to the count divided by
+the total run time of the program (that is, the cumulative count for
+main()).

+
+
Edge Information

+
+
An edge from one node to another indicates a caller to callee
+relationship.  Each edge is labelled with the time spent by the callee
+on behalf of the caller.  E.g, the edge from
+test_main_thread() to snprintf() indicates
+that of the 200 samples in test_main_thread(), 37 are
+because of calls to snprintf().

+
+
Note that test_main_thread() has an edge to
+vsnprintf(), even though test_main_thread()
+doesn't call that function directly.  This is because the code was
+compiled with -O2; the profile reflects the optimized
+control flow.

+
+
Meta Information

+
+
The top of the display should contain some meta information
+like:

+
+      /tmp/profiler2_unittest
+      Total samples: 202
+      Focusing on: 202
+      Dropped nodes with <= 1 abs(samples)
+      Dropped edges with <= 0 samples
+

+
+
This section contains the name of the program, and the total
+samples collected during the profiling run.  If the
+--focus option is on (see the Focus
+section below), the legend also contains the number of samples being
+shown in the focused display.  Furthermore, some unimportant nodes and
+edges are dropped to reduce clutter.  The characteristics of the
+dropped nodes and edges are also displayed in the legend.

+
+
Focus and Ignore

+
+
You can ask pprof to generate a display focused on a particular
+piece of the program.  You specify a regular expression.  Any portion
+of the call-graph that is on a path which contains at least one node
+matching the regular expression is preserved.  The rest of the
+call-graph is dropped on the floor.  For example, you can focus on the
+vsnprintf() libc call in profiler2_unittest
+as follows:

+
+
+% pprof --gv --focus=vsnprintf /tmp/profiler2_unittest test.prof
+

+
+

+   
+

+
+
+
Similarly, you can supply the --ignore option to
+ignore samples that match a specified regular expression.  E.g., if
+you are interested in everything except calls to
+snprintf(), you can say:

+
+% pprof --gv --ignore=snprintf /tmp/profiler2_unittest test.prof
+

+
+
+
Interactive mode

+
+
By default -- if you don't specify any flags to the contrary --
+pprof runs in interactive mode.  At the (pprof) prompt,
+you can run many of the commands described above.  You can type
+help for a list of what commands are available in
+interactive mode.

+
+
pprof Options

+
+For a complete list of pprof options, you can run pprof
+--help.
+
+
Output Type

+
+

+

+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
--text
+    Produces a textual listing.  (Note: If you have an X display, and
+    dot and gv installed, you will probably
+    be happier with the --gv output.)
+  
--gv
+    Generates annotated call-graph, converts to postscript, and
+    displays via gv (requres dot and gv be
+    installed).
+  
--dot
+    Generates the annotated call-graph in dot format and
+    emits to stdout (requres dot be installed).
+  
--ps
+    Generates the annotated call-graph in Postscript format and
+    emits to stdout (requres dot be installed).
+  
--pdf
+    Generates the annotated call-graph in PDF format and emits to
+    stdout (requires dot and ps2pdf be
+    installed).
+  
--gif
+    Generates the annotated call-graph in GIF format and
+    emits to stdout (requres dot be installed).
+  
--list=<regexp>
+    
Outputs source-code listing of routines whose
+    name matches <regexp>.  Each line
+    in the listing is annotated with flat and cumulative
+    sample counts.

+
+    
In the presence of inlined calls, the samples
+    associated with inlined code tend to get assigned
+    to a line that follows the location of the 
+    inlined call.  A more precise accounting can be
+    obtained by disassembling the routine using the
+    --disasm flag.

+  
--disasm=<regexp>
+    Generates disassembly of routines that match
+    <regexp>, annotated with flat and
+    cumulative sample counts and emits to stdout.
+  

+

+
+
Reporting Granularity

+
+
By default, pprof produces one entry per procedure.  However you can
+use one of the following options to change the granularity of the
+output.  The --files option seems to be particularly
+useless, and may be removed eventually.

+
+

+
+
+  
+  
+
+  
+  
+
+  
+  
+
+  
+  
+
+
--addresses
+     Produce one node per program address.
+  
--lines
+     Produce one node per source line.
+  
--functions
+     Produce one node per function (this is the default).
+  
--files
+     Produce one node per source file.
+  

+

+
+
Controlling the Call Graph Display

+
+
Some nodes and edges are dropped to reduce clutter in the output
+display.  The following options control this effect:

+
+

+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
+  
+  
+
+
--nodecount=<n>
+    This option controls the number of displayed nodes.  The nodes
+    are first sorted by decreasing cumulative count, and then only
+    the top N nodes are kept.  The default value is 80.
+  
--nodefraction=<f>
+    This option provides another mechanism for discarding nodes
+    from the display.  If the cumulative count for a node is
+    less than this option's value multiplied by the total count
+    for the profile, the node is dropped.  The default value
+    is 0.005; i.e. nodes that account for less than
+    half a percent of the total time are dropped.  A node
+    is dropped if either this condition is satisfied, or the
+    --nodecount condition is satisfied.
+  
--edgefraction=<f>
+    This option controls the number of displayed edges.  First of all,
+    an edge is dropped if either its source or destination node is
+    dropped.  Otherwise, the edge is dropped if the sample
+    count along the edge is less than this option's value multiplied
+    by the total count for the profile.  The default value is
+    0.001; i.e., edges that account for less than
+    0.1% of the total time are dropped.
+  
--focus=<re>
+    This option controls what region of the graph is displayed
+    based on the regular expression supplied with the option.
+    For any path in the callgraph, we check all nodes in the path
+    against the supplied regular expression.  If none of the nodes
+    match, the path is dropped from the output.
+  
--ignore=<re>
+    This option controls what region of the graph is displayed
+    based on the regular expression supplied with the option.
+    For any path in the callgraph, we check all nodes in the path
+    against the supplied regular expression.  If any of the nodes
+    match, the path is dropped from the output.
+  

+

+
+
The dropped edges and nodes account for some count mismatches in
+the display.  For example, the cumulative count for
+snprintf() in the first diagram above was 41.  However
+the local count (1) and the count along the outgoing edges (12+1+20+6)
+add up to only 40.

+
+
+
Caveats

+
+
    
+  
  •  If the program exits because of a signal, the generated profile
+       will be incomplete, and may perhaps be
+       completely empty.
+  
  •  The displayed graph may have disconnected regions because
+       of the edge-dropping heuristics described above.
+  
  •  If the program linked in a library that was not compiled
+       with enough symbolic information, all samples associated
+       with the library may be charged to the last symbol found
+       in the program before the library.  This will artificially
+       inflate the count for that symbol.
+  
  •  If you run the program on one machine, and profile it on
+       another, and the shared libraries are different on the two
+       machines, the profiling output may be confusing: samples that
+       fall within  shared libaries may be assigned to arbitrary
+       procedures.
+  
  •  If your program forks, the children will also be profiled
+       (since they inherit the same CPUPROFILE setting).  Each process
+       is profiled separately; to distinguish the child profiles from
+       the parent profile and from each other, all children will have
+       their process-id appended to the CPUPROFILE name.
+  
  •  Due to a hack we make to work around a possible gcc bug, your
+       profiles may end up named strangely if the first character of
+       your CPUPROFILE variable has ascii value greater than 127.
+       This should be exceedingly rare, but if you need to use such a
+       name, just set prepend ./ to your filename:
+       CPUPROFILE=./Ägypten.
+

+
+
+

+
Sanjay Ghemawat

+
+
+Last modified: Fri May  9 14:41:29 PDT 2008
+
+

+
+
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/designstyle.css b/trunk/3rdparty/gperftools-2-fit/docs/designstyle.css
new file mode 100644
index 000000000..29299af1f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/designstyle.css
@@ -0,0 +1,109 @@
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+
+/* Definition lists: definition term bold */
+dt {
+  font-weight: bold;
+}
+
+address {
+  text-align: right;
+}
+/* Use the  tag for bits of code and  for variables and objects. */
+code,pre,samp,var {
+  color: #006000;
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+/* Use the  tag for file and directory paths and names. */
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+  color: #905050;
+  font-family: monospace;
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+/* Use the  tag for stuff the user should type. */
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+  color: #600000;
+}
+div.note p {
+  float: right;
+  width: 3in;
+  margin-right: 0%;
+  padding: 1px;
+  border: 2px solid #6060a0;
+  background-color: #fffff0;
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+
+UL.nobullets {
+  list-style-type: none;
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+pre.prettyprint { padding: 2px; border: 1px solid #888; }
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+.embsrc { background: #eee; }
+
+@media print {
+  .str { color: #060; }
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\ No newline at end of file
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/heap-example1.png b/trunk/3rdparty/gperftools-2-fit/docs/heap-example1.png
new file mode 100644
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diff --git a/trunk/3rdparty/gperftools-2-fit/docs/heap_checker.html b/trunk/3rdparty/gperftools-2-fit/docs/heap_checker.html
new file mode 100644
index 000000000..ca05b5003
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/heap_checker.html
@@ -0,0 +1,534 @@
+
+
+
+
+  
+  Gperftools Heap Leak Checker
+
+
+
+
+

+  Last modified
+  
+

+
+
This is the heap checker we use at Google to detect memory leaks in
+C++ programs.  There are three parts to using it: linking the library
+into an application, running the code, and analyzing the output.

+
+
+
Linking in the Library

+
+
The heap-checker is part of tcmalloc, so to install the heap
+checker into your executable, add -ltcmalloc to the
+link-time step for your executable.  Also, while we don't necessarily
+recommend this form of usage, it's possible to add in the profiler at
+run-time using LD_PRELOAD:

+
% env LD_PRELOAD="/usr/lib/libtcmalloc.so" 

+
+
This does not turn on heap checking; it just inserts the
+code.  For that reason, it's practical to just always link
+-ltcmalloc into a binary while developing; that's what we
+do at Google.  (However, since any user can turn on the profiler by
+setting an environment variable, it's not necessarily recommended to
+install heapchecker-linked binaries into a production, running
+system.)  Note that if you wish to use the heap checker, you must
+also use the tcmalloc memory-allocation library.  There is no way
+currently to use the heap checker separate from tcmalloc.

+
+
+
Running the Code

+
+
Note: For security reasons, heap profiling will not write to a file
+-- and is thus not usable -- for setuid programs.

+
+
Whole-program Heap Leak Checking

+
+
The recommended way to use the heap checker is in "whole program"
+mode.  In this case, the heap-checker starts tracking memory
+allocations before the start of main(), and checks again
+at program-exit.  If it finds any memory leaks -- that is, any memory
+not pointed to by objects that are still "live" at program-exit -- it
+aborts the program (via exit(1)) and prints a message
+describing how to track down the memory leak (using pprof).

+
+
The heap-checker records the stack trace for each allocation while
+it is active. This causes a significant increase in memory usage, in
+addition to slowing your program down.

+
+
Here's how to run a program with whole-program heap checking:

+
+
    
+  
  1.  
    Define the environment variable HEAPCHECK to the type of heap-checking to do.  For instance,
+       to heap-check
+       /usr/local/bin/my_binary_compiled_with_tcmalloc:
    
+       
    % env HEAPCHECK=normal /usr/local/bin/my_binary_compiled_with_tcmalloc
    
+

+
+
No other action is required.

+
+
Note that since the heap-checker uses the heap-profiling framework
+internally, it is not possible to run both the heap-checker and heap profiler at the same time.

+
+
+
Flavors of Heap Checking

+
+
These are the legal values when running a whole-program heap
+check:

+
    
+  
  1.  minimal
+  
  2.  normal
+  
  3.  strict
+  
  4.  draconian
+

+
+
"Minimal" heap-checking starts as late as possible in a
+initialization, meaning you can leak some memory in your
+initialization routines (that run before main(), say),
+and not trigger a leak message.  If you frequently (and purposefully)
+leak data in one-time global initializers, "minimal" mode is useful
+for you.  Otherwise, you should avoid it for stricter modes.

+
+
"Normal" heap-checking tracks live objects and
+reports a leak for any data that is not reachable via a live object
+when the program exits.

+
+
"Strict" heap-checking is much like "normal" but has a few extra
+checks that memory isn't lost in global destructors.  In particular,
+if you have a global variable that allocates memory during program
+execution, and then "forgets" about the memory in the global
+destructor (say, by setting the pointer to it to NULL) without freeing
+it, that will prompt a leak message in "strict" mode, though not in
+"normal" mode.

+
+
"Draconian" heap-checking is appropriate for those who like to be
+very precise about their memory management, and want the heap-checker
+to help them enforce it.  In "draconian" mode, the heap-checker does
+not do "live object" checking at all, so it reports a leak unless
+all allocated memory is freed before program exit. (However,
+you can use IgnoreObject() to re-enable
+liveness-checking on an object-by-object basis.)

+
+
"Normal" mode, as the name implies, is the one used most often at
+Google.  It's appropriate for everyday heap-checking use.

+
+
In addition, there are two other possible modes:

+
    
+  
  •  as-is
+  
  •  local
+

+
as-is is the most flexible mode; it allows you to
+specify the various knobs of the heap checker
+explicitly.  local activates the explicit heap-check instrumentation, but does not
+turn on any whole-program leak checking.

+
+
+
Tweaking whole-program checking

+
+
In some cases you want to check the whole program for memory leaks,
+but waiting for after main() exits to do the first
+whole-program leak check is waiting too long: e.g. in a long-running
+server one might wish to simply periodically check for leaks while the
+server is running.  In this case, you can call the static method
+HeapLeakChecker::NoGlobalLeaks(), to verify no global leaks have happened
+as of that point in the program.

+
+
Alternately, doing the check after main() exits might
+be too late.  Perhaps you have some objects that are known not to
+clean up properly at exit.  You'd like to do the "at exit" check
+before those objects are destroyed (since while they're live, any
+memory they point to will not be considered a leak).  In that case,
+you can call HeapLeakChecker::NoGlobalLeaks() manually, near the end of
+main(), and then call HeapLeakChecker::CancelGlobalCheck() to
+turn off the automatic post-main() check.

+
+
Finally, there's a helper macro for "strict" and "draconian" modes,
+which require all global memory to be freed before program exit.  This
+freeing can be time-consuming and is often unnecessary, since libc
+cleans up all memory at program-exit for you.  If you want the
+benefits of "strict"/"draconian" modes without the cost of all that
+freeing, look at REGISTER_HEAPCHECK_CLEANUP (in
+heap-checker.h).  This macro allows you to mark specific
+cleanup code as active only when the heap-checker is turned on.

+
+
+
Explicit (Partial-program) Heap Leak Checking

+
+
Instead of whole-program checking, you can check certain parts of your
+code to verify they do not have memory leaks.  This check verifies that
+between two parts of a program, no memory is allocated without being freed.

+
To use this kind of checking code, bracket the code you want
+checked by creating a HeapLeakChecker object at the
+beginning of the code segment, and call
+NoLeaks() at the end.  These functions, and all others
+referred to in this file, are declared in
+<gperftools/heap-checker.h>.
+

+
+
Here's an example:

+
+  HeapLeakChecker heap_checker("test_foo");
+  {
+    code that exercises some foo functionality;
+    this code should not leak memory;
+  }
+  if (!heap_checker.NoLeaks()) assert(NULL == "heap memory leak");
+

+
+
Note that adding in the HeapLeakChecker object merely
+instruments the code for leak-checking.  To actually turn on this
+leak-checking on a particular run of the executable, you must still
+run with the heap-checker turned on:

+
% env HEAPCHECK=local /usr/local/bin/my_binary_compiled_with_tcmalloc

+
If you want to do whole-program leak checking in addition to this
+manual leak checking, you can run in normal or some other
+mode instead: they'll run the "local" checks in addition to the
+whole-program check.

+
+
+
Disabling Heap-checking of Known Leaks

+
+
Sometimes your code has leaks that you know about and are willing
+to accept.  You would like the heap checker to ignore them when
+checking your program.  You can do this by bracketing the code in
+question with an appropriate heap-checking construct:

+
+   ...
+   {
+     HeapLeakChecker::Disabler disabler;
+     <leaky code>
+   }
+   ...
+

+Any objects allocated by leaky code (including inside any
+routines called by leaky code) and any objects reachable
+from such objects are not reported as leaks.
+
+
Alternately, you can use IgnoreObject(), which takes a
+pointer to an object to ignore.  That memory, and everything reachable
+from it (by following pointers), is ignored for the purposes of leak
+checking.  You can call UnIgnoreObject() to undo the
+effects of IgnoreObject().

+
+
+
Tuning the Heap Checker

+
+
The heap leak checker has many options, some that trade off running
+time and accuracy, and others that increase the sensitivity at the
+risk of returning false positives.  For most uses, the range covered
+by the heap-check flavors is enough, but in
+specialized cases more control can be helpful.

+
+

+These options are specified via environment varaiables.
+

+
+
This first set of options controls sensitivity and accuracy.  These
+options are ignored unless you run the heap checker in as-is mode.
+
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
HEAP_CHECK_AFTER_DESTRUCTORSDefault: false
+    When true, do the final leak check after all other global
+    destructors have run.  When false, do it after all
+    REGISTER_HEAPCHECK_CLEANUP, typically much earlier in
+    the global-destructor process.
+  
HEAP_CHECK_IGNORE_THREAD_LIVEDefault: true
+    If true, ignore objects reachable from thread stacks and registers
+    (that is, do not report them as leaks).
+  
HEAP_CHECK_IGNORE_GLOBAL_LIVEDefault: true
+    If true, ignore objects reachable from global variables and data
+    (that is, do not report them as leaks).
+  

+
+
These options modify the behavior of whole-program leak
+checking.

+
+
+
+
+  
+  
+  
+
+
+
+
HEAP_CHECK_MAX_LEAKSDefault: 20
+    The maximum number of leaks to be printed to stderr (all leaks are still
+    emitted to file output for pprof to visualize). If negative or zero,
+    print all the leaks found.
+  

+
+
These options apply to all types of leak checking.

+
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+
+
+
+
+  
+  
+  
+
+
+
HEAP_CHECK_IDENTIFY_LEAKSDefault: false
+    If true, generate the addresses of the leaked objects in the
+    generated memory leak profile files.
+  
HEAP_CHECK_TEST_POINTER_ALIGNMENTDefault: false
+    If true, check all leaks to see if they might be due to the use
+    of unaligned pointers.
+  
HEAP_CHECK_POINTER_SOURCE_ALIGNMENTDefault: sizeof(void*)
+    Alignment at which all pointers in memory are supposed to be located.
+    Use 1 if any alignment is ok.
+  
PPROF_PATHDefault: pprof
+    The location of the pprof executable.
+  
HEAP_CHECK_DUMP_DIRECTORYDefault: /tmp
+    Where the heap-profile files are kept while the program is running.
+  

+
+
+
Tips for Handling Detected Leaks

+
+
What do you do when the heap leak checker detects a memory leak?
+First, you should run the reported pprof command;
+hopefully, that is enough to track down the location where the leak
+occurs.

+
+
If the leak is a real leak, you should fix it!

+
+
If you are sure that the reported leaks are not dangerous and there
+is no good way to fix them, then you can use
+HeapLeakChecker::Disabler and/or
+HeapLeakChecker::IgnoreObject() to disable heap-checking
+for certain parts of the codebase.

+
+
In "strict" or "draconian" mode, leaks may be due to incomplete
+cleanup in the destructors of global variables.  If you don't wish to
+augment the cleanup routines, but still want to run in "strict" or
+"draconian" mode, consider using REGISTER_HEAPCHECK_CLEANUP.

+
+
Hints for Debugging Detected Leaks

+
+
Sometimes it can be useful to not only know the exact code that
+allocates the leaked objects, but also the addresses of the leaked objects.
+Combining this e.g. with additional logging in the program
+one can then track which subset of the allocations
+made at a certain spot in the code are leaked.
+

+To get the addresses of all leaked objects
+  define the environment variable HEAP_CHECK_IDENTIFY_LEAKS
+  to be 1.
+The object addresses will be reported in the form of addresses
+of fake immediate callers of the memory allocation routines.
+Note that the performance of doing leak-checking in this mode
+can be noticeably worse than the default mode.
+

+
+
One relatively common class of leaks that don't look real
+is the case of multiple initialization.
+In such cases the reported leaks are typically things that are
+linked from some global objects,
+which are initialized and say never modified again.
+The non-obvious cause of the leak is frequently the fact that
+the initialization code for these objects executes more than once.
+

+E.g. if the code of some .cc file is made to be included twice
+into the binary, then the constructors for global objects defined in that file
+will execute twice thus leaking the things allocated on the first run.
+

+Similar problems can occur if object initialization is done more explicitly
+e.g. on demand by a slightly buggy code
+that does not always ensure only-once initialization.
+

+
+

+A more rare but even more puzzling problem can be use of not properly
+aligned pointers (maybe inside of not properly aligned objects).
+Normally such pointers are not followed by the leak checker,
+hence the objects reachable only via such pointers are reported as leaks.
+If you suspect this case
+  define the environment variable HEAP_CHECK_TEST_POINTER_ALIGNMENT
+  to be 1
+and then look closely at the generated leak report messages.
+

+
+
How It Works

+
+
When a HeapLeakChecker object is constructed, it dumps
+a memory-usage profile named
+<prefix>.<name>-beg.heap to a temporary
+directory.  When NoLeaks()
+is called (for whole-program checking, this happens automatically at
+program-exit), it dumps another profile, named
+<prefix>.<name>-end.heap.
+(<prefix> is typically determined automatically,
+and <name> is typically argv[0].)  It
+then compares the two profiles.  If the second profile shows
+more memory use than the first, the
+NoLeaks() function will
+return false.  For "whole program" profiling, this will cause the
+executable to abort (via exit(1)).  In all cases, it will
+print a message on how to process the dumped profiles to locate
+leaks.

+
+
Detecting Live Objects

+
+
At any point during a program's execution, all memory that is
+accessible at that time is considered "live."  This includes global
+variables, and also any memory that is reachable by following pointers
+from a global variable.  It also includes all memory reachable from
+the current stack frame and from current CPU registers (this captures
+local variables).  Finally, it includes the thread equivalents of
+these: thread-local storage and thread heaps, memory reachable from
+thread-local storage and thread heaps, and memory reachable from
+thread CPU registers.

+
+
In all modes except "draconian," live memory is not
+considered to be a leak.  We detect this by doing a liveness flood,
+traversing pointers to heap objects starting from some initial memory
+regions we know to potentially contain live pointer data.  Note that
+this flood might potentially not find some (global) live data region
+to start the flood from.  If you find such, please file a bug.

+
+
The liveness flood attempts to treat any properly aligned byte
+sequences as pointers to heap objects and thinks that it found a good
+pointer whenever the current heap memory map contains an object with
+the address whose byte representation we found.  Some pointers into
+not-at-start of object will also work here.

+
+
As a result of this simple approach, it's possible (though
+unlikely) for the flood to be inexact and occasionally result in
+leaked objects being erroneously determined to be live.  For instance,
+random bit patterns can happen to look like pointers to leaked heap
+objects.  More likely, stale pointer data not corresponding to any
+live program variables can be still present in memory regions,
+especially in thread stacks.  For instance, depending on how the local
+malloc is implemented, it may reuse a heap object
+address:

+
+    char* p = new char[1];   // new might return 0x80000000, say.
+    delete p;
+    new char[1];             // new might return 0x80000000 again
+    // This last new is a leak, but doesn't seem it: p looks like it points to it
+

+
+
In other words, imprecisions in the liveness flood mean that for
+any heap leak check we might miss some memory leaks.  This means that
+for local leak checks, we might report a memory leak in the local
+area, even though the leak actually happened before the
+HeapLeakChecker object was constructed.  Note that for
+whole-program checks, a leak report does always correspond to a
+real leak (since there's no "before" to have created a false-live
+object).

+
+
While this liveness flood approach is not very portable and not
+100% accurate, it works in most cases and saves us from writing a lot
+of explicit clean up code and other hassles when dealing with thread
+data.

+
+
+
Visualizing Leak with pprof

+
+

+The heap checker automatically prints basic leak info with stack traces of
+leaked objects' allocation sites, as well as a pprof command line that can be
+used to visualize the call-graph involved in these allocations.
+The latter can be much more useful for a human
+to see where/why the leaks happened, especially if the leaks are numerous.
+

+
+
Leak-checking and Threads

+
+
At the time of HeapLeakChecker's construction and during
+NoLeaks() calls, we grab a lock
+and then pause all other threads so other threads do not interfere
+with recording or analyzing the state of the heap.

+
+
In general, leak checking works correctly in the presence of
+threads.  However, thread stack data liveness determination (via
+base/thread_lister.h) does not work when the program is
+running under GDB, because the ptrace functionality needed for finding
+threads is already hooked to by GDB.  Conversely, leak checker's
+ptrace attempts might also interfere with GDB.  As a result, GDB can
+result in potentially false leak reports.  For this reason, the
+heap-checker turns itself off when running under GDB.

+
+
Also, thread_lister only works for Linux pthreads;
+leak checking is unlikely to handle other thread implementations
+correctly.

+
+
As mentioned in the discussion of liveness flooding, thread-stack
+liveness determination might mis-classify as reachable objects that
+very recently became unreachable (leaked).  This can happen when the
+pointers to now-logically-unreachable objects are present in the
+active thread stack frame.  In other words, trivial code like the
+following might not produce the expected leak checking outcome
+depending on how the compiled code works with the stack:

+
+  int* foo = new int [20];
+  HeapLeakChecker check("a_check");
+  foo = NULL;
+  // May fail to trigger.
+  if (!heap_checker.NoLeaks()) assert(NULL == "heap memory leak");
+

+
+
+

+
Maxim Lifantsev

+
+
+Last modified: Fri Jul 13 13:14:33 PDT 2007
+
+

+
+
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/heapprofile.html b/trunk/3rdparty/gperftools-2-fit/docs/heapprofile.html
new file mode 100644
index 000000000..6f508699e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/heapprofile.html
@@ -0,0 +1,391 @@
+
+
+
+
+  
+  Gperftools Heap Profiler
+
+
+
+
+

+  Last modified
+  
+

+
+
This is the heap profiler we use at Google, to explore how C++
+programs manage memory.  This facility can be useful for

+
    
+  
  •  Figuring out what is in the program heap at any given time
+  
  •  Locating memory leaks
+  
  •  Finding places that do a lot of allocation
+

+
+
The profiling system instruments all allocations and frees.  It
+keeps track of various pieces of information per allocation site.  An
+allocation site is defined as the active stack trace at the call to
+malloc, calloc, realloc, or,
+new.

+
+
There are three parts to using it: linking the library into an
+application, running the code, and analyzing the output.

+
+
+
Linking in the Library

+
+
To install the heap profiler into your executable, add
+-ltcmalloc to the link-time step for your executable.
+Also, while we don't necessarily recommend this form of usage, it's
+possible to add in the profiler at run-time using
+LD_PRELOAD:
+
% env LD_PRELOAD="/usr/lib/libtcmalloc.so" <binary>

+
+
This does not turn on heap profiling; it just inserts the
+code.  For that reason, it's practical to just always link
+-ltcmalloc into a binary while developing; that's what we
+do at Google.  (However, since any user can turn on the profiler by
+setting an environment variable, it's not necessarily recommended to
+install profiler-linked binaries into a production, running
+system.)  Note that if you wish to use the heap profiler, you must
+also use the tcmalloc memory-allocation library.  There is no way
+currently to use the heap profiler separate from tcmalloc.

+
+
+
Running the Code

+
+
There are several alternatives to actually turn on heap profiling
+for a given run of an executable:

+
+
    
+  
  1.  
    Define the environment variable HEAPPROFILE to the filename
+       to dump the profile to.  For instance, to profile
+       /usr/local/bin/my_binary_compiled_with_tcmalloc:
    
+       
    % env HEAPPROFILE=/tmp/mybin.hprof /usr/local/bin/my_binary_compiled_with_tcmalloc
    
+  
  2.  
    In your code, bracket the code you want profiled in calls to
+       HeapProfilerStart() and HeapProfilerStop().
+       (These functions are declared in <gperftools/heap-profiler.h>.)
+       HeapProfilerStart() will take the
+       profile-filename-prefix as an argument.  Then, as often as
+       you'd like before calling HeapProfilerStop(), you
+       can use HeapProfilerDump() or
+       GetHeapProfile() to examine the profile.  In case
+       it's useful, IsHeapProfilerRunning() will tell you
+       whether you've already called HeapProfilerStart() or not.
    
+

+
+
+
For security reasons, heap profiling will not write to a file --
+and is thus not usable -- for setuid programs.

+
+
Modifying Runtime Behavior

+
+
You can more finely control the behavior of the heap profiler via
+environment variables.

+
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
HEAP_PROFILE_ALLOCATION_INTERVALdefault: 1073741824 (1 Gb)
+    Dump heap profiling information each time the specified number of
+    bytes has been allocated by the program.
+  
HEAP_PROFILE_INUSE_INTERVALdefault: 104857600 (100 Mb)
+    Dump heap profiling information whenever the high-water memory
+    usage mark increases by the specified number of bytes.
+  
HEAP_PROFILE_TIME_INTERVALdefault: 0
+    Dump heap profiling information each time the specified
+    number of seconds has elapsed.
+  
HEAPPROFILESIGNALdefault: disabled
+    Dump heap profiling information whenever the specified signal is sent to the
+    process.
+  
HEAP_PROFILE_MMAPdefault: false
+    Profile mmap, mremap and sbrk
+    calls in addition
+    to malloc, calloc, realloc,
+    and new.  NOTE: this causes the profiler to
+    profile calls internal to tcmalloc, since tcmalloc and friends use
+    mmap and sbrk internally for allocations.  One partial solution is
+    to filter these allocations out when running pprof,
+    with something like
+    pprof --ignore='DoAllocWithArena|SbrkSysAllocator::Alloc|MmapSysAllocator::Alloc.
+  
HEAP_PROFILE_ONLY_MMAPdefault: false
+    Only profile mmap, mremap, and sbrk
+    calls; do not profile
+    malloc, calloc, realloc,
+    or new.
+  
HEAP_PROFILE_MMAP_LOGdefault: false
+    Log mmap/munmap calls.
+  

+
+
Checking for Leaks

+
+
You can use the heap profiler to manually check for leaks, for
+instance by reading the profiler output and looking for large
+allocations.  However, for that task, it's easier to use the automatic heap-checking facility built
+into tcmalloc.

+
+
+
Analyzing the Output

+
+
If heap-profiling is turned on in a program, the program will
+periodically write profiles to the filesystem.  The sequence of
+profiles will be named:

+
+           <prefix>.0000.heap
+           <prefix>.0001.heap
+           <prefix>.0002.heap
+           ...
+

+
where <prefix> is the filename-prefix supplied
+when running the code (e.g. via the HEAPPROFILE
+environment variable).  Note that if the supplied prefix
+does not start with a /, the profile files will be
+written to the program's working directory.

+
+
The profile output can be viewed by passing it to the
+pprof tool -- the same tool that's used to analyze CPU profiles.
+
+
Here are some examples.  These examples assume the binary is named
+gfs_master, and a sequence of heap profile files can be
+found in files named:

+
+  /tmp/profile.0001.heap
+  /tmp/profile.0002.heap
+  ...
+  /tmp/profile.0100.heap
+

+
+
Why is a process so big

+
+
+    % pprof --gv gfs_master /tmp/profile.0100.heap
+

+
+
This command will pop-up a gv window that displays
+the profile information as a directed graph.  Here is a portion
+of the resulting output:

+
+

+
+

+
+A few explanations:
+
    
+
  •  GFS_MasterChunk::AddServer accounts for 255.6 MB
+     of the live memory, which is 25% of the total live memory.
+
  •  GFS_MasterChunkTable::UpdateState is directly
+     accountable for 176.2 MB of the live memory (i.e., it directly
+     allocated 176.2 MB that has not been freed yet).  Furthermore,
+     it and its callees are responsible for 729.9 MB.  The
+     labels on the outgoing edges give a good indication of the
+     amount allocated by each callee.
+

+
+
Comparing Profiles

+
+
You often want to skip allocations during the initialization phase
+of a program so you can find gradual memory leaks.  One simple way to
+do this is to compare two profiles -- both collected after the program
+has been running for a while.  Specify the name of the first profile
+using the --base option.  For example:

+
+   % pprof --base=/tmp/profile.0004.heap gfs_master /tmp/profile.0100.heap
+

+
+
The memory-usage in /tmp/profile.0004.heap will be
+subtracted from the memory-usage in
+/tmp/profile.0100.heap and the result will be
+displayed.

+
+
Text display

+
+
+% pprof --text gfs_master /tmp/profile.0100.heap
+   255.6  24.7%  24.7%    255.6  24.7% GFS_MasterChunk::AddServer
+   184.6  17.8%  42.5%    298.8  28.8% GFS_MasterChunkTable::Create
+   176.2  17.0%  59.5%    729.9  70.5% GFS_MasterChunkTable::UpdateState
+   169.8  16.4%  75.9%    169.8  16.4% PendingClone::PendingClone
+    76.3   7.4%  83.3%     76.3   7.4% __default_alloc_template::_S_chunk_alloc
+    49.5   4.8%  88.0%     49.5   4.8% hashtable::resize
+   ...
+

+
+

+
    
+  
  •  The first column contains the direct memory use in MB.
+  
  •  The fourth column contains memory use by the procedure
+       and all of its callees.
+  
  •  The second and fifth columns are just percentage
+       representations of the numbers in the first and fourth columns.
+  
  •  The third column is a cumulative sum of the second column
+       (i.e., the kth entry in the third column is the
+       sum of the first k entries in the second column.)
+

+
+
Ignoring or focusing on specific regions

+
+
The following command will give a graphical display of a subset of
+the call-graph.  Only paths in the call-graph that match the regular
+expression DataBuffer are included:

+
+% pprof --gv --focus=DataBuffer gfs_master /tmp/profile.0100.heap
+

+
+
Similarly, the following command will omit all paths subset of the
+call-graph.  All paths in the call-graph that match the regular
+expression DataBuffer are discarded:

+
+% pprof --gv --ignore=DataBuffer gfs_master /tmp/profile.0100.heap
+

+
+
Total allocations + object-level information

+
+
All of the previous examples have displayed the amount of in-use
+space.  I.e., the number of bytes that have been allocated but not
+freed.  You can also get other types of information by supplying a
+flag to pprof:

+
+

+
+
+
+  
+  
+
+
+
+  
+  
+
+
+
+  
+  
+
+
+
+  
+  
+
+
--inuse_space
+     Display the number of in-use megabytes (i.e. space that has
+     been allocated but not freed).  This is the default.
+  
--inuse_objects
+     Display the number of in-use objects (i.e. number of
+     objects that have been allocated but not freed).
+  
--alloc_space
+     Display the number of allocated megabytes.  This includes
+     the space that has since been de-allocated.  Use this
+     if you want to find the main allocation sites in the
+     program.
+  
--alloc_objects
+     Display the number of allocated objects.  This includes
+     the objects that have since been de-allocated.  Use this
+     if you want to find the main allocation sites in the
+     program.
+  

+

+
+
+
Interactive mode

+
+
By default -- if you don't specify any flags to the contrary --
+pprof runs in interactive mode.  At the (pprof) prompt,
+you can run many of the commands described above.  You can type
+help for a list of what commands are available in
+interactive mode.

+
+
+
Caveats

+
+
    
+  
  •  Heap profiling requires the use of libtcmalloc.  This
+       requirement may be removed in a future version of the heap
+       profiler, and the heap profiler separated out into its own
+       library.
+     
+  
  •  If the program linked in a library that was not compiled
+       with enough symbolic information, all samples associated
+       with the library may be charged to the last symbol found
+       in the program before the library.  This will artificially
+       inflate the count for that symbol.
+
+  
  •  If you run the program on one machine, and profile it on
+       another, and the shared libraries are different on the two
+       machines, the profiling output may be confusing: samples that
+       fall within the shared libaries may be assigned to arbitrary
+       procedures.
+
+  
  •  Several libraries, such as some STL implementations, do their
+       own memory management.  This may cause strange profiling
+       results.  We have code in libtcmalloc to cause STL to use
+       tcmalloc for memory management (which in our tests is better
+       than STL's internal management), though it only works for some
+       STL implementations.
+
+  
  •  If your program forks, the children will also be profiled
+       (since they inherit the same HEAPPROFILE setting).  Each
+       process is profiled separately; to distinguish the child
+       profiles from the parent profile and from each other, all
+       children will have their process-id attached to the HEAPPROFILE
+       name.
+     
+  
  •  Due to a hack we make to work around a possible gcc bug, your
+       profiles may end up named strangely if the first character of
+       your HEAPPROFILE variable has ascii value greater than 127.
+       This should be exceedingly rare, but if you need to use such a
+       name, just set prepend ./ to your filename:
+       HEAPPROFILE=./Ägypten.
+

+
+

+
Sanjay Ghemawat
+
+

+
+
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/index.html b/trunk/3rdparty/gperftools-2-fit/docs/index.html
new file mode 100644
index 000000000..7b93ed396
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/index.html
@@ -0,0 +1,20 @@
+
+
+
+Gperftools
+
+
+
+
+
+

+Last modified: Thu Feb  2 14:40:47 PST 2012
+
+
+
+
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/overview.dot b/trunk/3rdparty/gperftools-2-fit/docs/overview.dot
new file mode 100644
index 000000000..9966f56cf
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/overview.dot
@@ -0,0 +1,15 @@
+digraph Overview {
+node [shape = box]
+
+{rank=same
+T1 [label="Thread Cache"]
+Tsep [label="...", shape=plaintext]
+Tn [label="Thread Cache"]
+T1 -> Tsep -> Tn [style=invis]
+}
+
+C [label="Central\nHeap"]
+T1 -> C [dir=both]
+Tn -> C [dir=both]
+
+}
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diff --git a/trunk/3rdparty/gperftools-2-fit/docs/pprof.1 b/trunk/3rdparty/gperftools-2-fit/docs/pprof.1
new file mode 100644
index 000000000..f0f6cafc1
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/pprof.1
@@ -0,0 +1,131 @@
+.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.23.
+.TH PPROF "1" "February 2005" "pprof (part of gperftools)" Google
+.SH NAME
+pprof \- manual page for pprof (part of gperftools)
+.SH SYNOPSIS
+.B pprof
+[\fIoptions\fR] \fI \fR
+.SH DESCRIPTION
+.IP
+Prints specified cpu- or heap-profile
+.SH OPTIONS
+.TP
+\fB\-\-cum\fR
+Sort by cumulative data
+.TP
+\fB\-\-base=\fR
+Subtract  from  before display
+.SS "Reporting Granularity:"
+.TP
+\fB\-\-addresses\fR
+Report at address level
+.TP
+\fB\-\-lines\fR
+Report at source line level
+.TP
+\fB\-\-functions\fR
+Report at function level [default]
+.TP
+\fB\-\-files\fR
+Report at source file level
+.SS "Output type:"
+.TP
+\fB\-\-text\fR
+Generate text report [default]
+.TP
+\fB\-\-gv\fR
+Generate Postscript and display
+.TP
+\fB\-\-list=\fR
+Generate source listing of matching routines
+.TP
+\fB\-\-disasm=\fR
+Generate disassembly of matching routines
+.TP
+\fB\-\-dot\fR
+Generate DOT file to stdout
+.TP
+\fB\-\-ps\fR
+Generate Postscript to stdout
+.TP
+\fB\-\-pdf\fR
+Generate PDF to stdout
+.TP
+\fB\-\-gif\fR
+Generate GIF to stdout
+.SS "Heap-Profile Options:"
+.TP
+\fB\-\-inuse_space\fR
+Display in-use (mega)bytes [default]
+.TP
+\fB\-\-inuse_objects\fR
+Display in-use objects
+.TP
+\fB\-\-alloc_space\fR
+Display allocated (mega)bytes
+.TP
+\fB\-\-alloc_objects\fR
+Display allocated objects
+.TP
+\fB\-\-show_bytes\fR
+Display space in bytes
+.TP
+\fB\-\-drop_negative\fR
+Ignore negaive differences
+.SS "Call-graph Options:"
+.TP
+\fB\-\-nodecount=\fR
+Show at most so many nodes [default=80]
+.TP
+\fB\-\-nodefraction=\fR
+Hide nodes below *total [default=.005]
+.TP
+\fB\-\-edgefraction=\fR
+Hide edges below *total [default=.001]
+.TP
+\fB\-\-focus=\fR
+Focus on nodes matching 
+.TP
+\fB\-\-ignore=\fR
+Ignore nodes matching 
+.TP
+\fB\-\-scale=\fR
+Set GV scaling [default=0]
+.SH EXAMPLES
+
+pprof /bin/ls ls.prof
+.IP
+Outputs one line per procedure
+.PP
+pprof \fB\-\-gv\fR /bin/ls ls.prof
+.IP
+Displays annotated call-graph via 'gv'
+.PP
+pprof \fB\-\-gv\fR \fB\-\-focus\fR=\fIMutex\fR /bin/ls ls.prof
+.IP
+Restricts to code paths including a .*Mutex.* entry
+.PP
+pprof \fB\-\-gv\fR \fB\-\-focus\fR=\fIMutex\fR \fB\-\-ignore\fR=\fIstring\fR /bin/ls ls.prof
+.IP
+Code paths including Mutex but not string
+.PP
+pprof \fB\-\-list\fR=\fIgetdir\fR /bin/ls ls.prof
+.IP
+Dissassembly (with per-line annotations) for getdir()
+.PP
+pprof \fB\-\-disasm\fR=\fIgetdir\fR /bin/ls ls.prof
+.IP
+Dissassembly (with per-PC annotations) for getdir()
+.SH COPYRIGHT
+Copyright \(co 2005 Google Inc.
+.SH "SEE ALSO"
+Further documentation for
+.B pprof
+is maintained as a web page called
+.B cpu_profiler.html
+and is likely installed at one of the following locations:
+.IP
+.B /usr/share/gperftools/cpu_profiler.html
+.br
+.B /usr/local/share/gperftools/cpu_profiler.html
+.PP
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/pprof.see_also b/trunk/3rdparty/gperftools-2-fit/docs/pprof.see_also
new file mode 100644
index 000000000..f2caf5212
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/pprof.see_also
@@ -0,0 +1,11 @@
+[see also]
+Further documentation for
+.B pprof
+is maintained as a web page called
+.B cpu_profiler.html
+and is likely installed at one of the following locations:
+.IP
+.B /usr/share/gperftools/cpu_profiler.html
+.br
+.B /usr/local/share/gperftools/cpu_profiler.html
+.PP
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/pprof_remote_servers.html b/trunk/3rdparty/gperftools-2-fit/docs/pprof_remote_servers.html
new file mode 100644
index 000000000..e30e6129c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/pprof_remote_servers.html
@@ -0,0 +1,260 @@
+
+
+
+pprof and Remote Servers
+
+
+
+
+
pprof and Remote Servers

+
+
In mid-2006, we added an experimental facility to pprof, the tool that analyzes CPU and
+heap profiles.  This facility allows you to collect profile
+information from running applications.  It makes it easy to collect
+profile information without having to stop the program first, and
+without having to log into the machine where the application is
+running.  This is meant to be used on webservers, but will work on any
+application that can be modified to accept TCP connections on a port
+of its choosing, and to respond to HTTP requests on that port.

+
+
We do not currently have infrastructure, such as apache modules,
+that you can pop into a webserver or other application to get the
+necessary functionality "for free."  However, it's easy to generate
+the necessary data, which should allow the interested developer to add
+the necessary support into his or her applications.

+
+
To use pprof in this experimental "server" mode, you
+give the script a host and port it should query, replacing the normal
+commandline arguments of application + profile file:

+
+   % pprof internalweb.mycompany.com:80
+

+
+
The host must be listening on that port, and be able to accept HTTP/1.0
+requests -- sent via wget and curl -- for
+several urls.  The following sections list the urls that
+pprof can send, and the responses it expects in
+return.

+
+
Here are examples that pprof will recognize, when you give them
+on the commandline, are urls.  In general, you
+specify the host and a port (the port-number is required), and put
+the service-name at the end of the url.:

+
+http://myhost:80/pprof/heap            # retrieves a heap profile
+http://myhost:8008/pprof/profile       # retrieves a CPU profile
+http://myhost:80                       # retrieves a CPU profile (the default)
+http://myhost:8080/                    # retrieves a CPU profile (the default)
+myhost:8088/pprof/growth               # "http://" is optional, but port is not
+http://myhost:80/myservice/pprof/heap  # /pprof/heap just has to come at the end
+http://myhost:80/pprof/pmuprofile      # CPU profile using performance counters
+

+
+
 /pprof/heap 

+
+
pprof asks for the url /pprof/heap to
+get heap information.  The actual url is controlled via the variable
+HEAP_PAGE in the pprof script, so you
+can change it if you'd like.

+
+
There are two ways to get this data.  The first is to call

+
+    MallocExtension::instance()->GetHeapSample(&output);
+

+
and have the server send output back as an HTTP
+response to pprof.  MallocExtension is
+defined in the header file gperftools/malloc_extension.h.

+
+
Note this will only only work if the binary is being run with
+sampling turned on (which is not the default).  To do this, set the
+environment variable TCMALLOC_SAMPLE_PARAMETER to a
+positive value, such as 524288, before running.

+
+
The other way is to call HeapProfileStart(filename)
+(from heap-profiler.h), continue to do work, and then,
+some number of seconds later, call GetHeapProfile()
+(followed by HeapProfilerStop()).  The server can send
+the output of GetHeapProfile back as the HTTP response to
+pprof.  (Note you must free() this data after using it.)
+This is similar to how profile requests are
+handled, below.  This technique does not require the application to
+run with sampling turned on.

+
+
Here's an example of what the output should look like:

+
+heap profile:   1923: 127923432 [  1923: 127923432] @ heap_v2/524288
+     1:      312 [     1:      312] @ 0x2aaaabaf5ccc 0x2aaaaba4cd2c 0x2aaaac08c09a
+   928: 122586016 [   928: 122586016] @ 0x2aaaabaf682c 0x400680 0x400bdd 0x2aaaab1c368a 0x2aaaab1c8f77 0x2aaaab1c0396 0x2aaaab1c86ed 0x4007ff 0x2aaaaca62afa
+     1:       16 [     1:       16] @ 0x2aaaabaf5ccc 0x2aaaabb04bac 0x2aaaabc1b262 0x2aaaabc21496 0x2aaaabc214bb
+[...]
+

+
+
+
 Older code may produce "version 1" heap profiles which look like this:

+
+heap profile:  14933: 791700132 [ 14933: 791700132] @ heap
+     1:   848688 [     1:   848688] @ 0xa4b142 0x7f5bfc 0x87065e 0x4056e9 0x4125f8 0x42b4f1 0x45b1ba 0x463248 0x460871 0x45cb7c 0x5f1744 0x607cee 0x5f4a5e 0x40080f 0x2aaaabad7afa
+     1:  1048576 [     1:  1048576] @ 0xa4a9b2 0x7fd025 0x4ca6d8 0x4ca814 0x4caa88 0x2aaaab104cf0 0x404e20 0x4125f8 0x42b4f1 0x45b1ba 0x463248 0x460871 0x45cb7c 0x5f1744 0x607cee 0x5f4a5e 0x40080f 0x2aaaabad7afa
+  2942: 388629374 [  2942: 388629374] @ 0xa4b142 0x4006a0 0x400bed 0x5f0cfa 0x5f1744 0x607cee 0x5f4a5e 0x40080f 0x2aaaabad7afa
+[...]
+

+
pprof accepts both old and new heap profiles and automatically
+detects which one you are using.

+
+
 /pprof/growth 

+
+
pprof asks for the url /pprof/growth to
+get heap-profiling delta (growth) information.  The actual url is
+controlled via the variable GROWTH_PAGE in the
+pprof script, so you can change it if you'd like.

+
+
The server should respond by calling

+
+    MallocExtension::instance()->GetHeapGrowthStacks(&output);
+

+
and sending output back as an HTTP response to
+pprof.  MallocExtension is defined in the
+header file gperftools/malloc_extension.h.

+
+
Here's an example, from an actual Google webserver, of what the
+output should look like:

+
+heap profile:    741: 812122112 [   741: 812122112] @ growth
+     1:  1572864 [     1:  1572864] @ 0x87da564 0x87db8a3 0x84787a4 0x846e851 0x836d12f 0x834cd1c 0x8349ba5 0x10a3177 0x8349961
+     1:  1048576 [     1:  1048576] @ 0x87d92e8 0x87d9213 0x87d9178 0x87d94d3 0x87da9da 0x8a364ff 0x8a437e7 0x8ab7d23 0x8ab7da9 0x8ac7454 0x8348465 0x10a3161 0x8349961
+[...]
+

+
+
+
 /pprof/profile 

+
+
pprof asks for the url
+/pprof/profile?seconds=XX to get cpu-profiling
+information.  The actual url is controlled via the variable
+PROFILE_PAGE in the pprof script, so you can
+change it if you'd like.

+
+
The server should respond by calling
+ProfilerStart(filename), continuing to do its work, and
+then, XX seconds later, calling ProfilerStop().  (These
+functions are declared in gperftools/profiler.h.)  The
+application is responsible for picking a unique filename for
+ProfilerStart().  After calling
+ProfilerStop(), the server should read the contents of
+filename and send them back as an HTTP response to
+pprof.

+
+
Obviously, to get useful profile information the application must
+continue to run in the XX seconds that the profiler is running.  Thus,
+the profile start-stop calls should be done in a separate thread, or
+be otherwise non-blocking.

+
+
The profiler output file is binary, but near the end of it, it
+should have lines of text somewhat like this:

+
+01016000-01017000 rw-p 00015000 03:01 59314      /lib/ld-2.2.2.so
+

+
+
 /pprof/pmuprofile 

+
+pprof asks for a url of the form
+/pprof/pmuprofile?event=hw_event:unit_mask&period=nnn&seconds=xxx 
+to get cpu-profiling information.  The actual url is controlled via the variable
+PMUPROFILE_PAGE in the pprof script, so you can
+change it if you'd like.
 
+
+

+This is similar to pprof, but is meant to be used with your CPU's hardware 
+performance counters. The server could be implemented on top of a library 
+such as 
+libpfm. It should collect a sample every nnn occurrences 
+of the event and stop the sampling after xxx seconds. Much of the code 
+for /pprof/profile can be reused for this purpose.
+

+
+
The server side routines (the equivalent of
+ProfilerStart/ProfilerStart) are not available as part of perftools,
+so this URL is unlikely to be that useful.

+
+
 /pprof/contention 

+
+
This is intended to be able to profile (thread) lock contention in
+addition to CPU and memory use.  It's not yet usable.

+
+
+
 /pprof/cmdline 

+
+
pprof asks for the url /pprof/cmdline to
+figure out what application it's profiling.  The actual url is
+controlled via the variable PROGRAM_NAME_PAGE in the
+pprof script, so you can change it if you'd like.

+
+
The server should respond by reading the contents of
+/proc/self/cmdline, converting all internal NUL (\0)
+characters to newlines, and sending the result back as an HTTP
+response to pprof.

+
+
Here's an example return value:

+
+/root/server/custom_webserver
+80
+--configfile=/root/server/ws.config
+

+
+
+
 /pprof/symbol 

+
+
pprof asks for the url /pprof/symbol to
+map from hex addresses to variable names.  The actual url is
+controlled via the variable SYMBOL_PAGE in the
+pprof script, so you can change it if you'd like.

+
+
When the server receives a GET request for
+/pprof/symbol, it should return a line formatted like
+so:

+
+   num_symbols: ###
+

+
where ### is the number of symbols found in the
+binary.  (For now, the only important distinction is whether the value
+is 0, which it is for executables that lack debug information, or
+not-0).

+
+
This is perhaps the hardest request to write code for, because in
+addition to the GET request for this url, the server must accept POST
+requests.  This means that after the HTTP headers, pprof will pass in
+a list of hex addresses connected by +, like so:

+
+   curl -d '0x0824d061+0x0824d1cf' http://remote_host:80/pprof/symbol
+

+
+
The server should read the POST data, which will be in one line,
+and for each hex value, should write one line of output to the output
+stream, like so:

+
+<hex address><tab><function name>
+

+
For instance:

+
+0x08b2dabd    _Update
+

+
+
The other reason this is the most difficult request to implement,
+is that the application will have to figure out for itself how to map
+from address to function name.  One possibility is to run nm -C
+-n <program name> to get the mappings at
+program-compile-time.  Another, at least on Linux, is to call out to
+addr2line for every pprof/symbol call, for instance
+addr2line -Cfse /proc//exe 0x12345678 0x876543210
+(presumably with some caching!)

+
+
pprof itself does just this for local profiles (not
+ones that talk to remote servers); look at the subroutine
+GetProcedureBoundaries.

+
+
+

+Last modified: Mon Jun 12 21:30:14 PDT 2006
+
+
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/spanmap.dot b/trunk/3rdparty/gperftools-2-fit/docs/spanmap.dot
new file mode 100644
index 000000000..3cb42abe5
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/spanmap.dot
@@ -0,0 +1,22 @@
+digraph SpanMap {
+node [shape=box, width=0.3, height=0.3]
+nodesep=.05
+
+map [shape=record, width=6, label="||||||||||"]
+S0 [label="a"]
+S1 [label="b"]
+S2 [label="c"]
+S3 [label="d"]
+map:f0 -> S0
+map:f1 -> S0
+map:f2 -> S1
+map:f3 -> S2
+map:f4 -> S2
+map:f5 -> S2
+map:f6 -> S2
+map:f7 -> S2
+map:f8 -> S3
+map:f9 -> S3
+map:f10 -> S3
+
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/spanmap.gif b/trunk/3rdparty/gperftools-2-fit/docs/spanmap.gif
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diff --git a/trunk/3rdparty/gperftools-2-fit/docs/t-test1.times.txt b/trunk/3rdparty/gperftools-2-fit/docs/t-test1.times.txt
new file mode 100644
index 000000000..016369385
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/t-test1.times.txt
@@ -0,0 +1,480 @@
+time.1.ptmalloc.64:0.56 user 0.02 system 0.57 elapsed 100% CPU
+time.1.tcmalloc.64:0.38 user 0.02 system 0.40 elapsed 98% CPU
+time.1.ptmalloc.128:0.61 user 0.01 system 0.61 elapsed 101% CPU
+time.1.tcmalloc.128:0.35 user 0.00 system 0.35 elapsed 99% CPU
+time.1.ptmalloc.256:0.59 user 0.01 system 0.60 elapsed 100% CPU
+time.1.tcmalloc.256:0.27 user 0.02 system 0.28 elapsed 102% CPU
+time.1.ptmalloc.512:0.57 user 0.00 system 0.57 elapsed 100% CPU
+time.1.tcmalloc.512:0.25 user 0.01 system 0.25 elapsed 101% CPU
+time.1.ptmalloc.1024:0.52 user 0.00 system 0.52 elapsed 99% CPU
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+time.1.ptmalloc.2048:0.47 user 0.00 system 0.47 elapsed 99% CPU
+time.1.tcmalloc.2048:0.22 user 0.02 system 0.25 elapsed 95% CPU
+time.1.ptmalloc.4096:0.48 user 0.01 system 0.48 elapsed 100% CPU
+time.1.tcmalloc.4096:0.25 user 0.01 system 0.25 elapsed 100% CPU
+time.1.ptmalloc.8192:0.49 user 0.02 system 0.49 elapsed 102% CPU
+time.1.tcmalloc.8192:0.27 user 0.02 system 0.28 elapsed 101% CPU
+time.1.ptmalloc.16384:0.51 user 0.04 system 0.55 elapsed 99% CPU
+time.1.tcmalloc.16384:0.35 user 0.02 system 0.37 elapsed 100% CPU
+time.1.ptmalloc.32768:0.53 user 0.14 system 0.66 elapsed 100% CPU
+time.1.tcmalloc.32768:0.67 user 0.02 system 0.69 elapsed 99% CPU
+time.1.ptmalloc.65536:0.68 user 0.31 system 0.98 elapsed 100% CPU
+time.1.tcmalloc.65536:0.71 user 0.01 system 0.72 elapsed 99% CPU
+time.1.ptmalloc.131072:0.90 user 0.72 system 1.62 elapsed 99% CPU
+time.1.tcmalloc.131072:0.94 user 0.03 system 0.97 elapsed 99% CPU
+time.2.ptmalloc.64:1.05 user 0.00 system 0.53 elapsed 196% CPU
+time.2.tcmalloc.64:0.66 user 0.03 system 0.37 elapsed 185% CPU
+time.2.ptmalloc.128:1.77 user 0.01 system 0.89 elapsed 198% CPU
+time.2.tcmalloc.128:0.53 user 0.01 system 0.29 elapsed 184% CPU
+time.2.ptmalloc.256:1.14 user 0.01 system 0.62 elapsed 182% CPU
+time.2.tcmalloc.256:0.45 user 0.02 system 0.26 elapsed 180% CPU
+time.2.ptmalloc.512:1.26 user 0.40 system 1.79 elapsed 92% CPU
+time.2.tcmalloc.512:0.43 user 0.02 system 0.27 elapsed 166% CPU
+time.2.ptmalloc.1024:0.98 user 0.03 system 0.56 elapsed 179% CPU
+time.2.tcmalloc.1024:0.44 user 0.02 system 0.34 elapsed 134% CPU
+time.2.ptmalloc.2048:0.87 user 0.02 system 0.44 elapsed 199% CPU
+time.2.tcmalloc.2048:0.49 user 0.02 system 0.34 elapsed 148% CPU
+time.2.ptmalloc.4096:0.92 user 0.03 system 0.48 elapsed 196% CPU
+time.2.tcmalloc.4096:0.50 user 0.02 system 0.49 elapsed 105% CPU
+time.2.ptmalloc.8192:1.05 user 0.04 system 0.55 elapsed 196% CPU
+time.2.tcmalloc.8192:0.59 user 0.01 system 0.51 elapsed 116% CPU
+time.2.ptmalloc.16384:1.30 user 0.14 system 0.72 elapsed 198% CPU
+time.2.tcmalloc.16384:0.63 user 0.03 system 0.68 elapsed 96% CPU
+time.2.ptmalloc.32768:1.33 user 0.56 system 1.00 elapsed 189% CPU
+time.2.tcmalloc.32768:1.16 user 0.01 system 1.17 elapsed 99% CPU
+time.2.ptmalloc.65536:1.86 user 1.79 system 2.01 elapsed 181% CPU
+time.2.tcmalloc.65536:1.35 user 0.01 system 1.35 elapsed 100% CPU
+time.2.ptmalloc.131072:2.61 user 5.19 system 4.81 elapsed 162% CPU
+time.2.tcmalloc.131072:1.86 user 0.04 system 1.90 elapsed 100% CPU
+time.3.ptmalloc.64:1.79 user 0.03 system 0.67 elapsed 268% CPU
+time.3.tcmalloc.64:1.58 user 0.04 system 0.62 elapsed 260% CPU
+time.3.ptmalloc.128:2.77 user 1.34 system 3.07 elapsed 133% CPU
+time.3.tcmalloc.128:1.19 user 0.01 system 0.50 elapsed 236% CPU
+time.3.ptmalloc.256:2.14 user 0.02 system 0.85 elapsed 252% CPU
+time.3.tcmalloc.256:0.96 user 0.01 system 0.41 elapsed 236% CPU
+time.3.ptmalloc.512:3.37 user 1.31 system 3.33 elapsed 140% CPU
+time.3.tcmalloc.512:0.93 user 0.04 system 0.39 elapsed 243% CPU
+time.3.ptmalloc.1024:1.66 user 0.01 system 0.64 elapsed 260% CPU
+time.3.tcmalloc.1024:0.81 user 0.02 system 0.44 elapsed 187% CPU
+time.3.ptmalloc.2048:2.07 user 0.01 system 0.82 elapsed 252% CPU
+time.3.tcmalloc.2048:1.10 user 0.04 system 0.59 elapsed 191% CPU
+time.3.ptmalloc.4096:2.01 user 0.03 system 0.79 elapsed 258% CPU
+time.3.tcmalloc.4096:0.87 user 0.03 system 0.65 elapsed 137% CPU
+time.3.ptmalloc.8192:2.22 user 0.11 system 0.83 elapsed 280% CPU
+time.3.tcmalloc.8192:0.96 user 0.06 system 0.75 elapsed 135% CPU
+time.3.ptmalloc.16384:2.56 user 0.47 system 1.02 elapsed 295% CPU
+time.3.tcmalloc.16384:0.99 user 0.04 system 1.03 elapsed 99% CPU
+time.3.ptmalloc.32768:3.29 user 1.75 system 1.96 elapsed 256% CPU
+time.3.tcmalloc.32768:1.67 user 0.02 system 1.69 elapsed 99% CPU
+time.3.ptmalloc.65536:4.04 user 6.62 system 4.92 elapsed 216% CPU
+time.3.tcmalloc.65536:1.91 user 0.02 system 1.98 elapsed 97% CPU
+time.3.ptmalloc.131072:5.55 user 17.86 system 12.44 elapsed 188% CPU
+time.3.tcmalloc.131072:2.78 user 0.02 system 2.82 elapsed 99% CPU
+time.4.ptmalloc.64:3.42 user 1.36 system 3.20 elapsed 149% CPU
+time.4.tcmalloc.64:2.42 user 0.02 system 0.71 elapsed 341% CPU
+time.4.ptmalloc.128:3.98 user 1.79 system 3.89 elapsed 148% CPU
+time.4.tcmalloc.128:1.87 user 0.02 system 0.58 elapsed 325% CPU
+time.4.ptmalloc.256:4.06 user 2.14 system 4.12 elapsed 150% CPU
+time.4.tcmalloc.256:1.69 user 0.02 system 0.51 elapsed 331% CPU
+time.4.ptmalloc.512:4.48 user 2.15 system 4.39 elapsed 150% CPU
+time.4.tcmalloc.512:1.62 user 0.03 system 0.52 elapsed 314% CPU
+time.4.ptmalloc.1024:3.18 user 0.03 system 0.84 elapsed 381% CPU
+time.4.tcmalloc.1024:1.53 user 0.02 system 0.56 elapsed 274% CPU
+time.4.ptmalloc.2048:3.24 user 0.02 system 0.84 elapsed 384% CPU
+time.4.tcmalloc.2048:1.44 user 0.04 system 0.66 elapsed 221% CPU
+time.4.ptmalloc.4096:3.50 user 0.04 system 0.91 elapsed 389% CPU
+time.4.tcmalloc.4096:1.31 user 0.01 system 0.89 elapsed 148% CPU
+time.4.ptmalloc.8192:6.77 user 3.85 system 4.14 elapsed 256% CPU
+time.4.tcmalloc.8192:1.20 user 0.05 system 0.97 elapsed 127% CPU
+time.4.ptmalloc.16384:7.08 user 5.06 system 4.63 elapsed 262% CPU
+time.4.tcmalloc.16384:1.27 user 0.03 system 1.25 elapsed 103% CPU
+time.4.ptmalloc.32768:5.57 user 4.22 system 3.31 elapsed 295% CPU
+time.4.tcmalloc.32768:2.17 user 0.03 system 2.25 elapsed 97% CPU
+time.4.ptmalloc.65536:6.11 user 15.05 system 9.19 elapsed 230% CPU
+time.4.tcmalloc.65536:2.51 user 0.02 system 2.57 elapsed 98% CPU
+time.4.ptmalloc.131072:7.58 user 33.15 system 21.28 elapsed 191% CPU
+time.4.tcmalloc.131072:3.57 user 0.07 system 3.66 elapsed 99% CPU
+time.5.ptmalloc.64:4.44 user 2.08 system 4.37 elapsed 148% CPU
+time.5.tcmalloc.64:2.87 user 0.02 system 0.79 elapsed 361% CPU
+time.5.ptmalloc.128:4.77 user 2.77 system 5.14 elapsed 146% CPU
+time.5.tcmalloc.128:2.65 user 0.03 system 0.72 elapsed 367% CPU
+time.5.ptmalloc.256:5.82 user 2.88 system 5.49 elapsed 158% CPU
+time.5.tcmalloc.256:2.33 user 0.01 system 0.66 elapsed 352% CPU
+time.5.ptmalloc.512:6.27 user 3.11 system 5.34 elapsed 175% CPU
+time.5.tcmalloc.512:2.14 user 0.03 system 0.70 elapsed 307% CPU
+time.5.ptmalloc.1024:6.82 user 3.18 system 5.23 elapsed 191% CPU
+time.5.tcmalloc.1024:2.20 user 0.02 system 0.70 elapsed 313% CPU
+time.5.ptmalloc.2048:6.57 user 3.46 system 5.22 elapsed 192% CPU
+time.5.tcmalloc.2048:2.15 user 0.03 system 0.82 elapsed 264% CPU
+time.5.ptmalloc.4096:8.75 user 5.09 system 5.26 elapsed 263% CPU
+time.5.tcmalloc.4096:1.68 user 0.03 system 1.08 elapsed 158% CPU
+time.5.ptmalloc.8192:4.48 user 0.61 system 1.51 elapsed 335% CPU
+time.5.tcmalloc.8192:1.47 user 0.07 system 1.18 elapsed 129% CPU
+time.5.ptmalloc.16384:5.71 user 1.98 system 2.14 elapsed 358% CPU
+time.5.tcmalloc.16384:1.58 user 0.03 system 1.52 elapsed 105% CPU
+time.5.ptmalloc.32768:7.19 user 7.81 system 5.53 elapsed 270% CPU
+time.5.tcmalloc.32768:2.63 user 0.05 system 2.72 elapsed 98% CPU
+time.5.ptmalloc.65536:8.45 user 23.51 system 14.30 elapsed 223% CPU
+time.5.tcmalloc.65536:3.12 user 0.05 system 3.21 elapsed 98% CPU
+time.5.ptmalloc.131072:10.22 user 43.63 system 27.84 elapsed 193% CPU
+time.5.tcmalloc.131072:4.42 user 0.07 system 4.51 elapsed 99% CPU
+time.6.ptmalloc.64:5.57 user 2.56 system 5.08 elapsed 159% CPU
+time.6.tcmalloc.64:3.20 user 0.01 system 0.89 elapsed 360% CPU
+time.6.ptmalloc.128:5.98 user 3.52 system 5.71 elapsed 166% CPU
+time.6.tcmalloc.128:2.76 user 0.02 system 0.78 elapsed 355% CPU
+time.6.ptmalloc.256:4.61 user 0.02 system 1.19 elapsed 389% CPU
+time.6.tcmalloc.256:2.65 user 0.02 system 0.74 elapsed 356% CPU
+time.6.ptmalloc.512:8.28 user 3.88 system 6.61 elapsed 183% CPU
+time.6.tcmalloc.512:2.60 user 0.02 system 0.72 elapsed 362% CPU
+time.6.ptmalloc.1024:4.75 user 0.00 system 1.22 elapsed 387% CPU
+time.6.tcmalloc.1024:2.56 user 0.02 system 0.79 elapsed 325% CPU
+time.6.ptmalloc.2048:8.90 user 4.59 system 6.15 elapsed 219% CPU
+time.6.tcmalloc.2048:2.37 user 0.06 system 0.96 elapsed 250% CPU
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diff --git a/trunk/3rdparty/gperftools-2-fit/docs/tcmalloc-opspersec.vs.size.3.threads.png b/trunk/3rdparty/gperftools-2-fit/docs/tcmalloc-opspersec.vs.size.3.threads.png
new file mode 100644
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+
+
+
+TCMalloc : Thread-Caching Malloc
+
+
+
+
+
+
TCMalloc : Thread-Caching Malloc

+
+
Sanjay Ghemawat

+
+
Motivation

+
+
TCMalloc is faster than the glibc 2.3 malloc (available as a
+separate library called ptmalloc2) and other mallocs that I have
+tested.  ptmalloc2 takes approximately 300 nanoseconds to execute a
+malloc/free pair on a 2.8 GHz P4 (for small objects).  The TCMalloc
+implementation takes approximately 50 nanoseconds for the same
+operation pair.  Speed is important for a malloc implementation
+because if malloc is not fast enough, application writers are inclined
+to write their own custom free lists on top of malloc.  This can lead
+to extra complexity, and more memory usage unless the application
+writer is very careful to appropriately size the free lists and
+scavenge idle objects out of the free list.

+
+
TCMalloc also reduces lock contention for multi-threaded programs.
+For small objects, there is virtually zero contention.  For large
+objects, TCMalloc tries to use fine grained and efficient spinlocks.
+ptmalloc2 also reduces lock contention by using per-thread arenas but
+there is a big problem with ptmalloc2's use of per-thread arenas.  In
+ptmalloc2 memory can never move from one arena to another.  This can
+lead to huge amounts of wasted space.  For example, in one Google
+application, the first phase would allocate approximately 300MB of
+memory for its URL canonicalization data structures.  When the first
+phase finished, a second phase would be started in the same address
+space.  If this second phase was assigned a different arena than the
+one used by the first phase, this phase would not reuse any of the
+memory left after the first phase and would add another 300MB to the
+address space.  Similar memory blowup problems were also noticed in
+other applications.

+
+
Another benefit of TCMalloc is space-efficient representation of
+small objects.  For example, N 8-byte objects can be allocated while
+using space approximately 8N * 1.01 bytes.  I.e., a
+one-percent space overhead.  ptmalloc2 uses a four-byte header for
+each object and (I think) rounds up the size to a multiple of 8 bytes
+and ends up using 16N bytes.

+
+
+
Usage

+
+
To use TCMalloc, just link TCMalloc into your application via the
+"-ltcmalloc" linker flag.

+
+
You can use TCMalloc in applications you didn't compile yourself,
+by using LD_PRELOAD:

+
+   $ LD_PRELOAD="/usr/lib/libtcmalloc.so" 
+

+
LD_PRELOAD is tricky, and we don't necessarily recommend this mode
+of usage.

+
+
TCMalloc includes a heap checker
+and heap profiler as well.

+
+
If you'd rather link in a version of TCMalloc that does not include
+the heap profiler and checker (perhaps to reduce binary size for a
+static binary), you can link in libtcmalloc_minimal
+instead.

+
+
+
Overview

+
+
TCMalloc assigns each thread a thread-local cache.  Small
+allocations are satisfied from the thread-local cache.  Objects are
+moved from central data structures into a thread-local cache as
+needed, and periodic garbage collections are used to migrate memory
+back from a thread-local cache into the central data structures.

+

+
+
TCMalloc treats objects with size <= 256K ("small" objects)
+differently from larger objects.  Large objects are allocated directly
+from the central heap using a page-level allocator (a page is a 8K
+aligned region of memory).  I.e., a large object is always
+page-aligned and occupies an integral number of pages.

+
+
A run of pages can be carved up into a sequence of small objects,
+each equally sized.  For example a run of one page (4K) can be carved
+up into 32 objects of size 128 bytes each.

+
+
+
Small Object Allocation

+
+
Each small object size maps to one of approximately 88 allocatable
+size-classes.  For example, all allocations in the range 961 to 1024
+bytes are rounded up to 1024.  The size-classes are spaced so that
+small sizes are separated by 8 bytes, larger sizes by 16 bytes, even
+larger sizes by 32 bytes, and so forth.  The maximal spacing is
+controlled so that not too much space is wasted when an allocation
+request falls just past the end of a size class and has to be rounded
+up to the next class.

+
+
A thread cache contains a singly linked list of free objects per
+size-class.

+

+
+
When allocating a small object: (1) We map its size to the
+corresponding size-class.  (2) Look in the corresponding free list in
+the thread cache for the current thread.  (3) If the free list is not
+empty, we remove the first object from the list and return it.  When
+following this fast path, TCMalloc acquires no locks at all.  This
+helps speed-up allocation significantly because a lock/unlock pair
+takes approximately 100 nanoseconds on a 2.8 GHz Xeon.

+
+
If the free list is empty: (1) We fetch a bunch of objects from a
+central free list for this size-class (the central free list is shared
+by all threads).  (2) Place them in the thread-local free list.  (3)
+Return one of the newly fetched objects to the applications.

+
+
If the central free list is also empty: (1) We allocate a run of
+pages from the central page allocator.  (2) Split the run into a set
+of objects of this size-class.  (3) Place the new objects on the
+central free list.  (4) As before, move some of these objects to the
+thread-local free list.

+
+

+  Sizing Thread Cache Free Lists

+
+
It is important to size the thread cache free lists correctly.  If
+the free list is too small, we'll need to go to the central free list
+too often.  If the free list is too big, we'll waste memory as objects
+sit idle in the free list.

+
+
Note that the thread caches are just as important for deallocation
+as they are for allocation.  Without a cache, each deallocation would
+require moving the memory to the central free list.  Also, some threads
+have asymmetric alloc/free behavior (e.g. producer and consumer threads),
+so sizing the free list correctly gets trickier.

+
+
To size the free lists appropriately, we use a slow-start algorithm
+to determine the maximum length of each individual free list.  As the
+free list is used more frequently, its maximum length grows.  However,
+if a free list is used more for deallocation than allocation, its
+maximum length will grow only up to a point where the whole list can
+be efficiently moved to the central free list at once.

+
+
The psuedo-code below illustrates this slow-start algorithm.  Note
+that num_objects_to_move is specific to each size class.
+By moving a list of objects with a well-known length, the central
+cache can efficiently pass these lists between thread caches.  If
+a thread cache wants fewer than num_objects_to_move,
+the operation on the central free list has linear time complexity.
+The downside of always using num_objects_to_move as
+the number of objects to transfer to and from the central cache is
+that it wastes memory in threads that don't need all of those objects.
+
+
+Start each freelist max_length at 1.
+
+Allocation
+  if freelist empty {
+    fetch min(max_length, num_objects_to_move) from central list;
+    if max_length < num_objects_to_move {  // slow-start
+      max_length++;
+    } else {
+      max_length += num_objects_to_move;
+    }
+  }
+
+Deallocation
+  if length > max_length {
+    // Don't try to release num_objects_to_move if we don't have that many.
+    release min(max_length, num_objects_to_move) objects to central list
+    if max_length < num_objects_to_move {
+      // Slow-start up to num_objects_to_move.
+      max_length++;
+    } else if max_length > num_objects_to_move {
+      // If we consistently go over max_length, shrink max_length.
+      overages++;
+      if overages > kMaxOverages {
+        max_length -= num_objects_to_move;
+        overages = 0;
+      }
+    }
+  }
+

+
+See also the section on Garbage Collection
+to see how it affects the max_length.
+
+
Medium Object Allocation

+
+
A medium object size (256K ≤ size ≤ 1MB) is rounded up to a page
+size (8K) and is handled by a central page heap. The central page heap
+includes an array of 128 free lists.  The kth entry is a
+free list of runs that consist of k + 1 pages:

+

+
+
An allocation for k pages is satisfied by looking in
+the kth free list.  If that free list is empty, we look
+in the next free list, and so forth.  If no medium-object free list
+can satisfy the allocation, the allocation is treated as a large object.
+
+
+
Large Object Allocation

+
+Allocations of 1MB or more are considered large allocations. Spans
+of free memory which can satisfy these allocations are tracked in
+a red-black tree sorted by size. Allocations follow the best-fit
+algorithm: the tree is searched to find the smallest span of free
+space which is larger than the requested allocation. The allocation
+is carved out of that span, and the remaining space is reinserted
+either into the large object tree or possibly into one of the smaller
+free-lists as appropriate.
+
+If no span of free memory is located that can fit the requested
+allocation, we fetch memory from the system (using sbrk,
+mmap, or by mapping in portions of
+/dev/mem).

+
+
If an allocation for k pages is satisfied by a run
+of pages of length > k, the remainder of the
+run is re-inserted back into the appropriate free list in the
+page heap.

+
+
+
Spans

+
+
The heap managed by TCMalloc consists of a set of pages.  A run of
+contiguous pages is represented by a Span object.  A span
+can either be allocated, or free.  If free, the span
+is one of the entries in a page heap linked-list.  If allocated, it is
+either a large object that has been handed off to the application, or
+a run of pages that have been split up into a sequence of small
+objects.  If split into small objects, the size-class of the objects
+is recorded in the span.

+
+
A central array indexed by page number can be used to find the span to
+which a page belongs.  For example, span a below occupies 2
+pages, span b occupies 1 page, span c occupies 5
+pages and span d occupies 3 pages.

+

+
+
In a 32-bit address space, the central array is represented by a a
+2-level radix tree where the root contains 32 entries and each leaf
+contains 2^14 entries (a 32-bit address space has 2^19 8K pages, and
+the first level of tree divides the 2^19 pages by 2^5).  This leads to
+a starting memory usage of 64KB of space (2^14*4 bytes) for the
+central array, which seems acceptable.

+
+
On 64-bit machines, we use a 3-level radix tree.

+
+
+
Deallocation

+
+
When an object is deallocated, we compute its page number and look
+it up in the central array to find the corresponding span object.  The
+span tells us whether or not the object is small, and its size-class
+if it is small.  If the object is small, we insert it into the
+appropriate free list in the current thread's thread cache.  If the
+thread cache now exceeds a predetermined size (2MB by default), we run
+a garbage collector that moves unused objects from the thread cache
+into central free lists.

+
+
If the object is large, the span tells us the range of pages covered
+by the object.  Suppose this range is [p,q].  We also
+lookup the spans for pages p-1 and q+1.  If
+either of these neighboring spans are free, we coalesce them with the
+[p,q] span.  The resulting span is inserted into the
+appropriate free list in the page heap.

+
+
+
Central Free Lists for Small Objects

+
+
As mentioned before, we keep a central free list for each
+size-class.  Each central free list is organized as a two-level data
+structure: a set of spans, and a linked list of free objects per
+span.

+
+
An object is allocated from a central free list by removing the
+first entry from the linked list of some span.  (If all spans have
+empty linked lists, a suitably sized span is first allocated from the
+central page heap.)

+
+
An object is returned to a central free list by adding it to the
+linked list of its containing span.  If the linked list length now
+equals the total number of small objects in the span, this span is now
+completely free and is returned to the page heap.

+
+
+
Garbage Collection of Thread Caches

+
+
Garbage collecting objects from a thread cache keeps the size of
+the cache under control and returns unused objects to the central free
+lists.  Some threads need large caches to perform well while others
+can get by with little or no cache at all.  When a thread cache goes
+over its max_size, garbage collection kicks in and then the
+thread competes with the other threads for a larger cache.

+
+
Garbage collection is run only during a deallocation.  We walk over
+all free lists in the cache and move some number of objects from the
+free list to the corresponding central list.

+
+
The number of objects to be moved from a free list is determined
+using a per-list low-water-mark L.  L
+records the minimum length of the list since the last garbage
+collection.  Note that we could have shortened the list by
+L objects at the last garbage collection without
+requiring any extra accesses to the central list.  We use this past
+history as a predictor of future accesses and move L/2
+objects from the thread cache free list to the corresponding central
+free list.  This algorithm has the nice property that if a thread
+stops using a particular size, all objects of that size will quickly
+move from the thread cache to the central free list where they can be
+used by other threads.

+
+
If a thread consistently deallocates more objects of a certain size
+than it allocates, this L/2 behavior will cause at least
+L/2 objects to always sit in the free list.  To avoid
+wasting memory this way, we shrink the maximum length of the freelist
+to converge on num_objects_to_move (see also
+Sizing Thread Cache Free Lists).
+
+
+Garbage Collection
+  if (L != 0 && max_length > num_objects_to_move) {
+    max_length = max(max_length - num_objects_to_move, num_objects_to_move)
+  }
+

+
+
The fact that the thread cache went over its max_size is
+an indication that the thread would benefit from a larger cache.  Simply
+increasing max_size would use an inordinate amount of memory
+in programs that have lots of active threads.  Developers can bound the
+memory used with the flag --tcmalloc_max_total_thread_cache_bytes.

+
+
Each thread cache starts with a small max_size
+(e.g. 64KB) so that idle threads won't pre-allocate memory they don't
+need.  Each time the cache runs a garbage collection, it will also try
+to grow its max_size.  If the sum of the thread cache
+sizes is less than --tcmalloc_max_total_thread_cache_bytes,
+max_size grows easily.  If not, thread cache 1 will try
+to steal from thread cache 2 (picked round-robin) by decreasing thread
+cache 2's max_size.  In this way, threads that are more
+active will steal memory from other threads more often than they are
+have memory stolen from themselves.  Mostly idle threads end up with
+small caches and active threads end up with big caches.  Note that
+this stealing can cause the sum of the thread cache sizes to be
+greater than --tcmalloc_max_total_thread_cache_bytes until thread
+cache 2 deallocates some memory to trigger a garbage collection.

+
+
Performance Notes

+
+
PTMalloc2 unittest

+
+
The PTMalloc2 package (now part of glibc) contains a unittest
+program t-test1.c. This forks a number of threads and
+performs a series of allocations and deallocations in each thread; the
+threads do not communicate other than by synchronization in the memory
+allocator.

+
+
t-test1 (included in
+tests/tcmalloc/, and compiled as
+ptmalloc_unittest1) was run with a varying numbers of
+threads (1-20) and maximum allocation sizes (64 bytes -
+32Kbytes). These tests were run on a 2.4GHz dual Xeon system with
+hyper-threading enabled, using Linux glibc-2.3.2 from RedHat 9, with
+one million operations per thread in each test. In each case, the test
+was run once normally, and once with
+LD_PRELOAD=libtcmalloc.so.
+
+
The graphs below show the performance of TCMalloc vs PTMalloc2 for
+several different metrics. Firstly, total operations (millions) per
+elapsed second vs max allocation size, for varying numbers of
+threads. The raw data used to generate these graphs (the output of the
+time utility) is available in
+t-test1.times.txt.

+
+
+
+  
+  
+  
+
+
+  
+  
+  
+
+
+  
+  
+  
+
+

+
+
+
     
+  
  •  TCMalloc is much more consistently scalable than PTMalloc2 - for
+       all thread counts >1 it achieves ~7-9 million ops/sec for small
+       allocations, falling to ~2 million ops/sec for larger
+       allocations. The single-thread case is an obvious outlier,
+       since it is only able to keep a single processor busy and hence
+       can achieve fewer ops/sec. PTMalloc2 has a much higher variance
+       on operations/sec - peaking somewhere around 4 million ops/sec
+       for small allocations and falling to <1 million ops/sec for
+       larger allocations.
+
+  
  •  TCMalloc is faster than PTMalloc2 in the vast majority of
+       cases, and particularly for small allocations. Contention
+       between threads is less of a problem in TCMalloc.
+
+  
  •  TCMalloc's performance drops off as the allocation size
+       increases. This is because the per-thread cache is
+       garbage-collected when it hits a threshold (defaulting to
+       2MB). With larger allocation sizes, fewer objects can be stored
+       in the cache before it is garbage-collected.
+
+  
  •  There is a noticeable drop in TCMalloc's performance at ~32K
+       maximum allocation size; at larger sizes performance drops less
+       quickly. This is due to the 32K maximum size of objects in the
+       per-thread caches; for objects larger than this TCMalloc
+       allocates from the central page heap.
+

+
+
Next, operations (millions) per second of CPU time vs number of
+threads, for max allocation size 64 bytes - 128 Kbytes.

+
+
+
+  
+  
+  
+
+
+  
+  
+  
+
+
+  
+  
+  
+
+

+
+
Here we see again that TCMalloc is both more consistent and more
+efficient than PTMalloc2. For max allocation sizes <32K, TCMalloc
+typically achieves ~2-2.5 million ops per second of CPU time with a
+large number of threads, whereas PTMalloc achieves generally 0.5-1
+million ops per second of CPU time, with a lot of cases achieving much
+less than this figure. Above 32K max allocation size, TCMalloc drops
+to 1-1.5 million ops per second of CPU time, and PTMalloc drops almost
+to zero for large numbers of threads (i.e. with PTMalloc, lots of CPU
+time is being burned spinning waiting for locks in the heavily
+multi-threaded case).

+
+
+
Modifying Runtime Behavior

+
+
You can more finely control the behavior of the tcmalloc via
+environment variables.

+
+
Generally useful flags:

+
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
TCMALLOC_SAMPLE_PARAMETERdefault: 0
+    The approximate gap between sampling actions.  That is, we
+    take one sample approximately once every
+    tcmalloc_sample_parmeter bytes of allocation.
+    This sampled heap information is available via
+    MallocExtension::GetHeapSample() or
+    MallocExtension::ReadStackTraces().  A reasonable
+    value is 524288.
+  
TCMALLOC_RELEASE_RATEdefault: 1.0
+    Rate at which we release unused memory to the system, via
+    madvise(MADV_DONTNEED), on systems that support
+    it.  Zero means we never release memory back to the system.
+    Increase this flag to return memory faster; decrease it
+    to return memory slower.  Reasonable rates are in the
+    range [0,10].
+  
TCMALLOC_LARGE_ALLOC_REPORT_THRESHOLDdefault: 1073741824
+    Allocations larger than this value cause a stack trace to be
+    dumped to stderr.  The threshold for dumping stack traces is
+    increased by a factor of 1.125 every time we print a message so
+    that the threshold automatically goes up by a factor of ~1000
+    every 60 messages.  This bounds the amount of extra logging
+    generated by this flag.  Default value of this flag is very large
+    and therefore you should see no extra logging unless the flag is
+    overridden.
+  
TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTESdefault: 16777216
+    Bound on the total amount of bytes allocated to thread caches.  This
+    bound is not strict, so it is possible for the cache to go over this
+    bound in certain circumstances.  This value defaults to 16MB.  For
+    applications with many threads, this may not be a large enough cache,
+    which can affect performance.  If you suspect your application is not
+    scaling to many threads due to lock contention in TCMalloc, you can
+    try increasing this value.  This may improve performance, at a cost
+    of extra memory use by TCMalloc.  See 
+    Garbage Collection for more details.
+  

+
+
Advanced "tweaking" flags, that control more precisely how tcmalloc
+tries to allocate memory from the kernel.

+
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
+  
+  
+  
+
+
+
TCMALLOC_SKIP_MMAPdefault: false
+     If true, do not try to use mmap to obtain memory
+     from the kernel.
+  
TCMALLOC_SKIP_SBRKdefault: false
+     If true, do not try to use sbrk to obtain memory
+     from the kernel.
+  
TCMALLOC_DEVMEM_STARTdefault: 0
+    Physical memory starting location in MB for /dev/mem
+    allocation.  Setting this to 0 disables /dev/mem
+    allocation.
+  
TCMALLOC_DEVMEM_LIMITdefault: 0
+     Physical memory limit location in MB for /dev/mem
+     allocation.  Setting this to 0 means no limit.
+  
TCMALLOC_DEVMEM_DEVICEdefault: /dev/mem
+     Device to use for allocating unmanaged memory.
+  
TCMALLOC_MEMFS_MALLOC_PATHdefault: ""
+     If set, specify a path where hugetlbfs or tmpfs is mounted.
+     This may allow for speedier allocations.
+  
TCMALLOC_MEMFS_LIMIT_MBdefault: 0
+     Limit total memfs allocation size to specified number of MB.
+     0 means "no limit".
+  
TCMALLOC_MEMFS_ABORT_ON_FAILdefault: false
+     If true, abort() whenever memfs_malloc fails to satisfy an allocation.
+  
TCMALLOC_MEMFS_IGNORE_MMAP_FAILdefault: false
+     If true, ignore failures from mmap.
+  
TCMALLOC_MEMFS_MAP_PRIVATEdefault: false
+     If true, use MAP_PRIVATE when mapping via memfs, not MAP_SHARED.
+  

+
+
+
Modifying Behavior In Code

+
+
The MallocExtension class, in
+malloc_extension.h, provides a few knobs that you can
+tweak in your program, to affect tcmalloc's behavior.

+
+
Releasing Memory Back to the System

+
+
By default, tcmalloc will release no-longer-used memory back to the
+kernel gradually, over time.  The tcmalloc_release_rate flag controls how quickly
+this happens.  You can also force a release at a given point in the
+progam execution like so:

+
+   MallocExtension::instance()->ReleaseFreeMemory();
+

+
+
You can also call SetMemoryReleaseRate() to change the
+tcmalloc_release_rate value at runtime, or
+GetMemoryReleaseRate to see what the current release rate
+is.

+
+
Memory Introspection

+
+
There are several routines for getting a human-readable form of the
+current memory usage:

+
+   MallocExtension::instance()->GetStats(buffer, buffer_length);
+   MallocExtension::instance()->GetHeapSample(&string);
+   MallocExtension::instance()->GetHeapGrowthStacks(&string);
+

+
+
The last two create files in the same format as the heap-profiler,
+and can be passed as data files to pprof.  The first is human-readable
+and is meant for debugging.

+
+
Generic Tcmalloc Status

+
+
TCMalloc has support for setting and retrieving arbitrary
+'properties':

+
+   MallocExtension::instance()->SetNumericProperty(property_name, value);
+   MallocExtension::instance()->GetNumericProperty(property_name, &value);
+

+
+
It is possible for an application to set and get these properties,
+but the most useful is when a library sets the properties so the
+application can read them.  Here are the properties TCMalloc defines;
+you can access them with a call like
+MallocExtension::instance()->GetNumericProperty("generic.heap_size",
+&value);:

+
+
+
+
+  
+  
+
+
+
+  
+  
+
+
+
+  
+  
+
+
+
+  
+  
+
+
+
+  
+  
+
+
+
+  
+  
+
+
+
+  
+  
+
+
+
generic.current_allocated_bytes
+    Number of bytes used by the application.  This will not typically
+    match the memory use reported by the OS, because it does not
+    include TCMalloc overhead or memory fragmentation.
+  
generic.heap_size
+    Bytes of system memory reserved by TCMalloc.
+  
tcmalloc.pageheap_free_bytes
+    Number of bytes in free, mapped pages in page heap.  These bytes
+    can be used to fulfill allocation requests.  They always count
+    towards virtual memory usage, and unless the underlying memory is
+    swapped out by the OS, they also count towards physical memory
+    usage.
+  
tcmalloc.pageheap_unmapped_bytes
+    Number of bytes in free, unmapped pages in page heap.  These are
+    bytes that have been released back to the OS, possibly by one of
+    the MallocExtension "Release" calls.  They can be used to fulfill
+    allocation requests, but typically incur a page fault.  They
+    always count towards virtual memory usage, and depending on the
+    OS, typically do not count towards physical memory usage.
+  
tcmalloc.slack_bytes
+    Sum of pageheap_free_bytes and pageheap_unmapped_bytes.  Provided
+    for backwards compatibility only.  Do not use.
+  
tcmalloc.max_total_thread_cache_bytes
+    A limit to how much memory TCMalloc dedicates for small objects.
+    Higher numbers trade off more memory use for -- in some situations
+    -- improved efficiency.
+  
tcmalloc.current_total_thread_cache_bytes
+    A measure of some of the memory TCMalloc is using (for
+    small objects).
+  

+
+
Caveats

+
+
For some systems, TCMalloc may not work correctly with
+applications that aren't linked against libpthread.so (or
+the equivalent on your OS). It should work on Linux using glibc 2.3,
+but other OS/libc combinations have not been tested.

+
+
TCMalloc may be somewhat more memory hungry than other mallocs,
+(but tends not to have the huge blowups that can happen with other
+mallocs).  In particular, at startup TCMalloc allocates approximately
+240KB of internal memory.

+
+
Don't try to load TCMalloc into a running binary (e.g., using JNI
+in Java programs).  The binary will have allocated some objects using
+the system malloc, and may try to pass them to TCMalloc for
+deallocation.  TCMalloc will not be able to handle such objects.

+
+

+
+
Sanjay Ghemawat, Paul Menage

+
+
+Last modified: Sat Feb 24 13:11:38 PST 2007  (csilvers)
+
+

+
+
+
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/threadheap.dot b/trunk/3rdparty/gperftools-2-fit/docs/threadheap.dot
new file mode 100644
index 000000000..b2dba7203
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/docs/threadheap.dot
@@ -0,0 +1,21 @@
+digraph ThreadHeap {
+rankdir=LR
+node [shape=box, width=0.3, height=0.3]
+nodesep=.05
+
+heap [shape=record, height=2, label="class 0|class 1|class 2|..."]
+O0 [label=""]
+O1 [label=""]
+O2 [label=""]
+O3 [label=""]
+O4 [label=""]
+O5 [label=""]
+sep1 [shape=plaintext, label="..."]
+sep2 [shape=plaintext, label="..."]
+sep3 [shape=plaintext, label="..."]
+
+heap:f0 -> O0 -> O1 -> sep1
+heap:f1 -> O2 -> O3 -> sep2
+heap:f2 -> O4 -> O5 -> sep3
+
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/docs/threadheap.gif b/trunk/3rdparty/gperftools-2-fit/docs/threadheap.gif
new file mode 100644
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diff --git a/trunk/3rdparty/gperftools-2-fit/gperftools.sln b/trunk/3rdparty/gperftools-2-fit/gperftools.sln
new file mode 100644
index 000000000..1f1483c59
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/gperftools.sln
@@ -0,0 +1,307 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25420.1
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libtcmalloc_minimal", "vsprojects\libtcmalloc_minimal\libtcmalloc_minimal.vcxproj", "{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tcmalloc_minimal_unittest", "vsprojects\tcmalloc_minimal_unittest\tcmalloc_minimal_unittest.vcxproj", "{7CC73D97-C057-43A6-82EF-E6B567488D02}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tcmalloc_minimal_large_unittest", "vsprojects\tcmalloc_minimal_large\tcmalloc_minimal_large_unittest.vcxproj", "{2D8B9599-C74C-4298-B723-6CF6077563E3}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "addressmap_unittest", "vsprojects\addressmap_unittest\addressmap_unittest.vcxproj", "{32EECEB6-7D18-477E-BC7A-30CE98457A88}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "frag_unittest", "vsprojects\frag_unittest\frag_unittest.vcxproj", "{24754725-DE0D-4214-8979-324247AAD78E}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "low_level_alloc_unittest", "vsprojects\low_level_alloc_unittest\low_level_alloc_unittest.vcxproj", "{A765198D-5305-4AB0-9A21-A0CD8201EB2A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "malloc_hook_test", "vsprojects\malloc_hook_test\malloc_hook_test.vcxproj", "{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "malloc_extension_test", "vsprojects\malloc_extension_test\malloc_extension_test.vcxproj", "{3765198D-5305-4AB0-9A21-A0CD8201EB2A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "markidle_unittest", "vsprojects\markidle_unittest\markidle_unittest.vcxproj", "{4AF7E21D-9D0A-410C-A7DB-7D21DA5166C0}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "current_allocated_bytes_test", "vsprojects\current_allocated_bytes_test\current_allocated_bytes_test.vcxproj", "{4AFFF21D-9D0A-410C-A7DB-7D21DA5166C0}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "packed-cache_test", "vsprojects\packed-cache_test\packed-cache_test.vcxproj", "{605D3CED-B530-424E-B7D2-2A31F14FD570}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pagemap_unittest", "vsprojects\pagemap_unittest\pagemap_unittest.vcxproj", "{9765198D-5305-4AB0-9A21-A0CD8201EB2A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "page_heap_test", "vsprojects\page_heap_test\page_heap_test.vcxproj", "{9765198D-5305-4AB0-9A21-A0CD8201EB2B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "realloc_unittest", "vsprojects\realloc_unittest\realloc_unittest.vcxproj", "{4765198D-5305-4AB0-9A21-A0CD8201EB2A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sampler_test", "vsprojects\sampler_test\sampler_test.vcxproj", "{B765198D-5305-4AB0-9A21-A0CD8201EB2A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "stack_trace_table_test", "vsprojects\stack_trace_table_test\stack_trace_table_test.vcxproj", "{A4754725-DE0D-4214-8979-324247AAD78E}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "thread_dealloc_unittest", "vsprojects\thread_dealloc_unittest\thread_dealloc_unittest.vcxproj", "{6CFFBD0F-09E3-4282-A711-0564451FDF74}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "preamble_patcher_test", "vsprojects\preamble_patcher_test\preamble_patcher_test.vcxproj", "{5765198D-5305-4AB0-9A21-A0CD8201EB2A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "addr2line-pdb", "vsprojects\addr2line-pdb\addr2line-pdb.vcxproj", "{81CA712E-90B8-4AE5-9E89-5B436578D6DA}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "nm-pdb", "vsprojects\nm-pdb\nm-pdb.vcxproj", "{3A559C75-FD26-4300-B86B-165FD43EE1CE}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "system-alloc_unittest", "vsprojects\system-alloc_unittest\system-alloc_unittest.vcxproj", "{387F753A-0312-4A7B-A1D6-B2795E832E96}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release-Override|x64 = Release-Override|x64
+		Release-Override|x86 = Release-Override|x86
+		Release-Patch|x64 = Release-Patch|x64
+		Release-Patch|x86 = Release-Patch|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Debug|x64.ActiveCfg = Debug|x64
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Debug|x64.Build.0 = Debug|x64
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Debug|x86.ActiveCfg = Debug|Win32
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Debug|x86.Build.0 = Debug|Win32
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Release-Override|x64.ActiveCfg = Release-Override|x64
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Release-Override|x64.Build.0 = Release-Override|x64
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Release-Override|x86.ActiveCfg = Release-Override|Win32
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Release-Override|x86.Build.0 = Release-Override|Win32
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Release-Patch|x64.ActiveCfg = Release-Patch|x64
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Release-Patch|x64.Build.0 = Release-Patch|x64
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Release-Patch|x86.ActiveCfg = Release-Patch|Win32
+		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}.Release-Patch|x86.Build.0 = Release-Patch|Win32
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Debug|x64.ActiveCfg = Debug|x64
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Debug|x64.Build.0 = Debug|x64
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Debug|x86.ActiveCfg = Debug|Win32
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Debug|x86.Build.0 = Debug|Win32
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Release-Override|x64.ActiveCfg = Release-Override|x64
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Release-Override|x64.Build.0 = Release-Override|x64
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Release-Override|x86.ActiveCfg = Release-Override|Win32
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Release-Override|x86.Build.0 = Release-Override|Win32
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Release-Patch|x64.ActiveCfg = Release-Patch|x64
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Release-Patch|x64.Build.0 = Release-Patch|x64
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Release-Patch|x86.ActiveCfg = Release-Patch|Win32
+		{7CC73D97-C057-43A6-82EF-E6B567488D02}.Release-Patch|x86.Build.0 = Release-Patch|Win32
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Debug|x64.ActiveCfg = Debug|x64
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Debug|x64.Build.0 = Debug|x64
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Debug|x86.ActiveCfg = Debug|Win32
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Debug|x86.Build.0 = Debug|Win32
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Release-Override|x64.ActiveCfg = Release-Override|x64
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Release-Override|x64.Build.0 = Release-Override|x64
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Release-Override|x86.ActiveCfg = Release-Override|Win32
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Release-Override|x86.Build.0 = Release-Override|Win32
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Release-Patch|x64.ActiveCfg = Release-Patch|x64
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Release-Patch|x64.Build.0 = Release-Patch|x64
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Release-Patch|x86.ActiveCfg = Release-Patch|Win32
+		{2D8B9599-C74C-4298-B723-6CF6077563E3}.Release-Patch|x86.Build.0 = Release-Patch|Win32
+		{32EECEB6-7D18-477E-BC7A-30CE98457A88}.Debug|x64.ActiveCfg = Debug|x64
+		{32EECEB6-7D18-477E-BC7A-30CE98457A88}.Debug|x64.Build.0 = Debug|x64
+		{32EECEB6-7D18-477E-BC7A-30CE98457A88}.Debug|x86.ActiveCfg = Debug|Win32
+		{32EECEB6-7D18-477E-BC7A-30CE98457A88}.Debug|x86.Build.0 = Debug|Win32
+		{32EECEB6-7D18-477E-BC7A-30CE98457A88}.Release-Override|x64.ActiveCfg = Release-Override|x64
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+		{24754725-DE0D-4214-8979-324247AAD78E}.Debug|x64.ActiveCfg = Debug|x64
+		{24754725-DE0D-4214-8979-324247AAD78E}.Debug|x64.Build.0 = Debug|x64
+		{24754725-DE0D-4214-8979-324247AAD78E}.Debug|x86.ActiveCfg = Debug|Win32
+		{24754725-DE0D-4214-8979-324247AAD78E}.Debug|x86.Build.0 = Debug|Win32
+		{24754725-DE0D-4214-8979-324247AAD78E}.Release-Override|x64.ActiveCfg = Release-Override|x64
+		{24754725-DE0D-4214-8979-324247AAD78E}.Release-Override|x64.Build.0 = Release-Override|x64
+		{24754725-DE0D-4214-8979-324247AAD78E}.Release-Override|x86.ActiveCfg = Release-Override|Win32
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+		{24754725-DE0D-4214-8979-324247AAD78E}.Release-Patch|x64.ActiveCfg = Release-Patch|x64
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+		{24754725-DE0D-4214-8979-324247AAD78E}.Release-Patch|x86.ActiveCfg = Release-Patch|Win32
+		{24754725-DE0D-4214-8979-324247AAD78E}.Release-Patch|x86.Build.0 = Release-Patch|Win32
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Debug|x64.ActiveCfg = Debug|x64
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Debug|x64.Build.0 = Debug|x64
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Debug|x86.ActiveCfg = Debug|Win32
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Debug|x86.Build.0 = Debug|Win32
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Override|x64.ActiveCfg = Release-Override|x64
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Override|x64.Build.0 = Release-Override|x64
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Override|x86.ActiveCfg = Release-Override|Win32
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Override|x86.Build.0 = Release-Override|Win32
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Patch|x64.ActiveCfg = Release-Patch|x64
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Patch|x64.Build.0 = Release-Patch|x64
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Patch|x86.ActiveCfg = Release-Patch|Win32
+		{A765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Patch|x86.Build.0 = Release-Patch|Win32
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Debug|x64.ActiveCfg = Debug|x64
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Debug|x64.Build.0 = Debug|x64
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Debug|x86.ActiveCfg = Debug|Win32
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Debug|x86.Build.0 = Debug|Win32
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Release-Override|x64.ActiveCfg = Release-Override|x64
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Release-Override|x64.Build.0 = Release-Override|x64
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Release-Override|x86.ActiveCfg = Release-Override|Win32
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+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Release-Patch|x64.ActiveCfg = Release-Patch|x64
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Release-Patch|x64.Build.0 = Release-Patch|x64
+		{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}.Release-Patch|x86.ActiveCfg = Release-Patch|Win32
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+		{3765198D-5305-4AB0-9A21-A0CD8201EB2A}.Debug|x64.ActiveCfg = Debug|x64
+		{3765198D-5305-4AB0-9A21-A0CD8201EB2A}.Debug|x64.Build.0 = Debug|x64
+		{3765198D-5305-4AB0-9A21-A0CD8201EB2A}.Debug|x86.ActiveCfg = Debug|Win32
+		{3765198D-5305-4AB0-9A21-A0CD8201EB2A}.Debug|x86.Build.0 = Debug|Win32
+		{3765198D-5305-4AB0-9A21-A0CD8201EB2A}.Release-Override|x64.ActiveCfg = Release-Override|x64
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+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/trunk/3rdparty/gperftools-2-fit/install-sh b/trunk/3rdparty/gperftools-2-fit/install-sh
new file mode 100755
index 000000000..ec298b537
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/install-sh
@@ -0,0 +1,541 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2020-11-14.01; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# 'make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+tab='	'
+nl='
+'
+IFS=" $tab$nl"
+
+# Set DOITPROG to "echo" to test this script.
+
+doit=${DOITPROG-}
+doit_exec=${doit:-exec}
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+# Create dirs (including intermediate dirs) using mode 755.
+# This is like GNU 'install' as of coreutils 8.32 (2020).
+mkdir_umask=22
+
+backupsuffix=
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+is_target_a_directory=possibly
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
+
+  -c            (ignored)
+  -C            install only if different (preserve data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -p            pass -p to $cpprog.
+  -s            $stripprog installed files.
+  -S SUFFIX     attempt to back up existing files, with suffix SUFFIX.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
+
+By default, rm is invoked with -f; when overridden with RMPROG,
+it's up to you to specify -f if you want it.
+
+If -S is not specified, no backups are attempted.
+
+Email bug reports to bug-automake@gnu.org.
+Automake home page: https://www.gnu.org/software/automake/
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+        shift;;
+
+    --help) echo "$usage"; exit $?;;
+
+    -m) mode=$2
+        case $mode in
+          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
+            echo "$0: invalid mode: $mode" >&2
+            exit 1;;
+        esac
+        shift;;
+
+    -o) chowncmd="$chownprog $2"
+        shift;;
+
+    -p) cpprog="$cpprog -p";;
+
+    -s) stripcmd=$stripprog;;
+
+    -S) backupsuffix="$2"
+        shift;;
+
+    -t)
+        is_target_a_directory=always
+        dst_arg=$2
+        # Protect names problematic for 'test' and other utilities.
+        case $dst_arg in
+          -* | [=\(\)!]) dst_arg=./$dst_arg;;
+        esac
+        shift;;
+
+    -T) is_target_a_directory=never;;
+
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --) shift
+        break;;
+
+    -*) echo "$0: invalid option: $1" >&2
+        exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+# We allow the use of options -d and -T together, by making -d
+# take the precedence; this is for compatibility with GNU install.
+
+if test -n "$dir_arg"; then
+  if test -n "$dst_arg"; then
+    echo "$0: target directory not allowed when installing a directory." >&2
+    exit 1
+  fi
+fi
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call 'install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  if test $# -gt 1 || test "$is_target_a_directory" = always; then
+    if test ! -d "$dst_arg"; then
+      echo "$0: $dst_arg: Is not a directory." >&2
+      exit 1
+    fi
+  fi
+fi
+
+if test -z "$dir_arg"; then
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+        u_plus_rw=
+      else
+        u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+        u_plus_rw=
+      else
+        u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names problematic for 'test' and other utilities.
+  case $src in
+    -* | [=\(\)!]) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+    # Don't chown directories that already exist.
+    if test $dstdir_status = 0; then
+      chowncmd=""
+    fi
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+    dst=$dst_arg
+
+    # If destination is a directory, append the input filename.
+    if test -d "$dst"; then
+      if test "$is_target_a_directory" = never; then
+        echo "$0: $dst_arg: Is a directory" >&2
+        exit 1
+      fi
+      dstdir=$dst
+      dstbase=`basename "$src"`
+      case $dst in
+	*/) dst=$dst$dstbase;;
+	*)  dst=$dst/$dstbase;;
+      esac
+      dstdir_status=0
+    else
+      dstdir=`dirname "$dst"`
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  case $dstdir in
+    */) dstdirslash=$dstdir;;
+    *)  dstdirslash=$dstdir/;;
+  esac
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+        # With -d, create the new directory with the user-specified mode.
+        # Otherwise, rely on $mkdir_umask.
+        if test -n "$dir_arg"; then
+          mkdir_mode=-m$mode
+        else
+          mkdir_mode=
+        fi
+
+        posix_mkdir=false
+	# The $RANDOM variable is not portable (e.g., dash).  Use it
+	# here however when possible just to lower collision chance.
+	tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+
+	trap '
+	  ret=$?
+	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null
+	  exit $ret
+	' 0
+
+	# Because "mkdir -p" follows existing symlinks and we likely work
+	# directly in world-writeable /tmp, make sure that the '$tmpdir'
+	# directory is successfully created first before we actually test
+	# 'mkdir -p'.
+	if (umask $mkdir_umask &&
+	    $mkdirprog $mkdir_mode "$tmpdir" &&
+	    exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
+	then
+	  if test -z "$dir_arg" || {
+	       # Check for POSIX incompatibilities with -m.
+	       # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+	       # other-writable bit of parent directory when it shouldn't.
+	       # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+	       test_tmpdir="$tmpdir/a"
+	       ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
+	       case $ls_ld_tmpdir in
+		 d????-?r-*) different_mode=700;;
+		 d????-?--*) different_mode=755;;
+		 *) false;;
+	       esac &&
+	       $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
+		 ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
+		 test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+	       }
+	     }
+	  then posix_mkdir=:
+	  fi
+	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+	else
+	  # Remove any dirs left behind by ancient mkdir implementations.
+	  rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+	fi
+	trap '' 0;;
+    esac
+
+    if
+      $posix_mkdir && (
+        umask $mkdir_umask &&
+        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+        /*) prefix='/';;
+        [-=\(\)!]*) prefix='./';;
+        *)  prefix='';;
+      esac
+
+      oIFS=$IFS
+      IFS=/
+      set -f
+      set fnord $dstdir
+      shift
+      set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+        test X"$d" = X && continue
+
+        prefix=$prefix$d
+        if test -d "$prefix"; then
+          prefixes=
+        else
+          if $posix_mkdir; then
+            (umask $mkdir_umask &&
+             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+            # Don't fail if two instances are running concurrently.
+            test -d "$prefix" || exit 1
+          else
+            case $prefix in
+              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+              *) qprefix=$prefix;;
+            esac
+            prefixes="$prefixes '$qprefix'"
+          fi
+        fi
+        prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+        # Don't fail if two instances are running concurrently.
+        (umask $mkdir_umask &&
+         eval "\$doit_exec \$mkdirprog $prefixes") ||
+          test -d "$dstdir" || exit 1
+        obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=${dstdirslash}_inst.$$_
+    rmtmp=${dstdirslash}_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask &&
+     { test -z "$stripcmd" || {
+	 # Create $dsttmp read-write so that cp doesn't create it read-only,
+	 # which would cause strip to fail.
+	 if test -z "$doit"; then
+	   : >"$dsttmp" # No need to fork-exec 'touch'.
+	 else
+	   $doit touch "$dsttmp"
+	 fi
+       }
+     } &&
+     $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
+       set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       set +f &&
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # If $backupsuffix is set, and the file being installed
+      # already exists, attempt a backup.  Don't worry if it fails,
+      # e.g., if mv doesn't support -f.
+      if test -n "$backupsuffix" && test -f "$dst"; then
+        $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null
+      fi
+
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+        # Now remove or move aside any old file at destination location.
+        # We try this two ways since rm can't unlink itself on some
+        # systems and the destination file might be busy for other
+        # reasons.  In this case, the final cleanup might fail but the new
+        # file should still install successfully.
+        {
+          test ! -f "$dst" ||
+          $doit $rmcmd "$dst" 2>/dev/null ||
+          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+            { $doit $rmcmd "$rmtmp" 2>/dev/null; :; }
+          } ||
+          { echo "$0: cannot unlink or rename $dst" >&2
+            (exit 1); exit 1
+          }
+        } &&
+
+        # Now rename the file to the real destination.
+        $doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/trunk/3rdparty/gperftools-2-fit/libtool b/trunk/3rdparty/gperftools-2-fit/libtool
new file mode 100755
index 000000000..7ed60a9d4
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/libtool
@@ -0,0 +1,11911 @@
+#! /bin/sh
+# Generated automatically by config.status (gperftools) 2.9.1
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the  same
+# distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+
+# The names of the tagged configurations supported by this script.
+available_tags='CXX '
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: ${LT_SYS_LIBRARY_PATH=""}
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Which release of libtool.m4 was used?
+macro_version=2.4.6
+macro_revision=2.4.6
+
+# Whether or not to build shared libraries.
+build_libtool_libs=yes
+
+# Whether or not to build static libraries.
+build_old_libs=yes
+
+# What type of objects to build.
+pic_mode=default
+
+# Whether or not to optimize for fast installation.
+fast_install=needless
+
+# Shared archive member basename,for filename based shared library versioning on AIX.
+shared_archive_member_spec=
+
+# Shell to use when invoking shell scripts.
+SHELL="/bin/sh"
+
+# An echo program that protects backslashes.
+ECHO="printf %s\\n"
+
+# The PATH separator for the build system.
+PATH_SEPARATOR=":"
+
+# The host system.
+host_alias=
+host=x86_64-pc-linux-gnu
+host_os=linux-gnu
+
+# The build system.
+build_alias=
+build=x86_64-pc-linux-gnu
+build_os=linux-gnu
+
+# A sed program that does not truncate output.
+SED="/bin/sed"
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="$SED -e 1s/^X//"
+
+# A grep program that handles long lines.
+GREP="/bin/grep"
+
+# An ERE matcher.
+EGREP="/bin/grep -E"
+
+# A literal string matcher.
+FGREP="/bin/grep -F"
+
+# A BSD- or MS-compatible name lister.
+NM="/usr/bin/nm -B"
+
+# Whether we need soft or hard links.
+LN_S="ln -s"
+
+# What is the maximum length of a command?
+max_cmd_len=1572864
+
+# Object file suffix (normally "o").
+objext=o
+
+# Executable file suffix (normally "").
+exeext=
+
+# whether the shell understands "unset".
+lt_unset=unset
+
+# turn spaces into newlines.
+SP2NL="tr \\040 \\012"
+
+# turn newlines into spaces.
+NL2SP="tr \\015\\012 \\040\\040"
+
+# convert $build file names to $host format.
+to_host_file_cmd=func_convert_file_noop
+
+# convert $build files to toolchain format.
+to_tool_file_cmd=func_convert_file_noop
+
+# An object symbol dumper.
+OBJDUMP="objdump"
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method="pass_all"
+
+# Command to use when deplibs_check_method = "file_magic".
+file_magic_cmd="\$MAGIC_CMD"
+
+# How to find potential files when deplibs_check_method = "file_magic".
+file_magic_glob=""
+
+# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
+want_nocaseglob="no"
+
+# DLL creation program.
+DLLTOOL="false"
+
+# Command to associate shared and link libraries.
+sharedlib_from_linklib_cmd="printf %s\\n"
+
+# The archiver.
+AR="ar"
+
+# Flags to create an archive.
+AR_FLAGS="cr"
+
+# How to feed a file listing to the archiver.
+archiver_list_spec="@"
+
+# A symbol stripping program.
+STRIP="strip"
+
+# Commands used to install an old-style archive.
+RANLIB="ranlib"
+old_postinstall_cmds="chmod 644 \$oldlib~\$RANLIB \$tool_oldlib"
+old_postuninstall_cmds=""
+
+# Whether to use a lock for old archive extraction.
+lock_old_archive_extraction=no
+
+# A C compiler.
+LTCC="gcc"
+
+# LTCC compiler flags.
+LTCFLAGS="-g -O2"
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe="sed -n -e 's/^.*[	 ]\\([ABCDGIRSTW][ABCDGIRSTW]*\\)[	 ][	 ]*\\([_A-Za-z][_A-Za-z0-9]*\\)\$/\\1 \\2 \\2/p' | sed '/ __gnu_lto/d'"
+
+# Transform the output of nm in a proper C declaration.
+global_symbol_to_cdecl="sed -n -e 's/^T .* \\(.*\\)\$/extern int \\1();/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(.*\\)\$/extern char \\1;/p'"
+
+# Transform the output of nm into a list of symbols to manually relocate.
+global_symbol_to_import=""
+
+# Transform the output of nm in a C name address pair.
+global_symbol_to_c_name_address="sed -n -e 's/^: \\(.*\\) .*\$/  {\"\\1\", (void *) 0},/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(.*\\)\$/  {\"\\1\", (void *) \\&\\1},/p'"
+
+# Transform the output of nm in a C name address pair when lib prefix is needed.
+global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \\(.*\\) .*\$/  {\"\\1\", (void *) 0},/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(lib.*\\)\$/  {\"\\1\", (void *) \\&\\1},/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(.*\\)\$/  {\"lib\\1\", (void *) \\&\\1},/p'"
+
+# The name lister interface.
+nm_interface="BSD nm"
+
+# Specify filename containing input files for $NM.
+nm_file_list_spec="@"
+
+# The root where to search for dependent libraries,and where our libraries should be installed.
+lt_sysroot=
+
+# Command to truncate a binary pipe.
+lt_truncate_bin="/bin/dd bs=4096 count=1"
+
+# The name of the directory that contains temporary libtool files.
+objdir=.libs
+
+# Used to examine libraries when file_magic_cmd begins with "file".
+MAGIC_CMD=file
+
+# Must we lock files when doing compilation?
+need_locks="no"
+
+# Manifest tool.
+MANIFEST_TOOL=":"
+
+# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
+DSYMUTIL=""
+
+# Tool to change global to local symbols on Mac OS X.
+NMEDIT=""
+
+# Tool to manipulate fat objects and archives on Mac OS X.
+LIPO=""
+
+# ldd/readelf like tool for Mach-O binaries on Mac OS X.
+OTOOL=""
+
+# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
+OTOOL64=""
+
+# Old archive suffix (normally "a").
+libext=a
+
+# Shared library suffix (normally ".so").
+shrext_cmds=".so"
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=""
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at link time.
+variables_saved_for_relink="PATH LD_LIBRARY_PATH LD_RUN_PATH GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+
+# Do we need the "lib" prefix for modules?
+need_lib_prefix=no
+
+# Do we need a version for libraries?
+need_version=no
+
+# Library versioning type.
+version_type=linux
+
+# Shared library runtime path variable.
+runpath_var=LD_RUN_PATH
+
+# Shared library path variable.
+shlibpath_var=LD_LIBRARY_PATH
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=yes
+
+# Format of library name prefix.
+libname_spec="lib\$name"
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME
+library_names_spec="\$libname\$release\$shared_ext\$versuffix \$libname\$release\$shared_ext\$major \$libname\$shared_ext"
+
+# The coded name of the library, if different from the real name.
+soname_spec="\$libname\$release\$shared_ext\$major"
+
+# Permission mode override for installation of shared libraries.
+install_override_mode=""
+
+# Command to use after installation of a shared archive.
+postinstall_cmds=""
+
+# Command to use after uninstallation of a shared archive.
+postuninstall_cmds=""
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds="PATH=\\\"\\\$PATH:/sbin\\\" ldconfig -n \$libdir"
+
+# As "finish_cmds", except a single script fragment to be evaled but
+# not shown.
+finish_eval=""
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=yes
+
+# Compile-time system search path for libraries.
+sys_lib_search_path_spec="/usr/lib/gcc/x86_64-linux-gnu/10 /usr/lib/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib "
+
+# Detected run-time system search path for libraries.
+sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/lib/x86_64-linux-gnu/libfakeroot /usr/local/lib/i386-linux-gnu /lib/i386-linux-gnu /usr/lib/i386-linux-gnu /usr/local/lib/i686-linux-gnu /lib/i686-linux-gnu /usr/lib/i686-linux-gnu /usr/local/lib /usr/local/lib/x86_64-linux-gnu /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu /lib32 /usr/lib32 /libx32 /usr/libx32 "
+
+# Explicit LT_SYS_LIBRARY_PATH set during ./configure time.
+configure_time_lt_sys_library_path=""
+
+# Whether dlopen is supported.
+dlopen_support=unknown
+
+# Whether dlopen of programs is supported.
+dlopen_self=unknown
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=unknown
+
+# Commands to strip libraries.
+old_striplib="strip --strip-debug"
+striplib="strip --strip-unneeded"
+
+
+# The linker used to build libraries.
+LD="/usr/bin/ld -m elf_x86_64"
+
+# How to create reloadable object files.
+reload_flag=" -r"
+reload_cmds="\$LD\$reload_flag -o \$output\$reload_objs"
+
+# Commands used to build an old-style archive.
+old_archive_cmds="\$AR \$AR_FLAGS \$oldlib\$oldobjs~\$RANLIB \$tool_oldlib"
+
+# A language specific compiler.
+CC="gcc"
+
+# Is the compiler the GNU compiler?
+with_gcc=yes
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=" -fno-builtin"
+
+# Additional compiler flags for building library objects.
+pic_flag=" -fPIC -DPIC"
+
+# How to pass a linker flag through the compiler.
+wl="-Wl,"
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag="-static"
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o="yes"
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=no
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=no
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec="\$wl--export-dynamic"
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec="\$wl--whole-archive\$convenience \$wl--no-whole-archive"
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object="no"
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=""
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=""
+
+# Commands used to build a shared archive.
+archive_cmds="\$CC -shared \$pic_flag \$libobjs \$deplibs \$compiler_flags \$wl-soname \$wl\$soname -o \$lib"
+archive_expsym_cmds="echo \\\"{ global:\\\" > \$output_objdir/\$libname.ver~
+            cat \$export_symbols | sed -e \\\"s/\\\\(.*\\\\)/\\\\1;/\\\" >> \$output_objdir/\$libname.ver~
+            echo \\\"local: *; };\\\" >> \$output_objdir/\$libname.ver~
+            \$CC -shared \$pic_flag \$libobjs \$deplibs \$compiler_flags \$wl-soname \$wl\$soname \$wl-version-script \$wl\$output_objdir/\$libname.ver -o \$lib"
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=""
+module_expsym_cmds=""
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld="yes"
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=""
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=""
+
+# Flag to hardcode $libdir into a binary during linking.
+# This must work even if $libdir does not exist
+hardcode_libdir_flag_spec="\$wl-rpath \$wl\$libdir"
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=""
+
+# Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=no
+
+# Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting $shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=no
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=no
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=unsupported
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=no
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=no
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=no
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=no
+
+# The commands to list exported symbols.
+export_symbols_cmds="\$NM \$libobjs \$convenience | \$global_symbol_pipe | \$SED 's/.* //' | sort | uniq > \$export_symbols"
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms="_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*"
+
+# Symbols that must always be exported.
+include_expsyms=""
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=""
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=""
+
+# Specify filename containing input files.
+file_list_spec=""
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=immediate
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=""
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=""
+postdep_objects=""
+predeps=""
+postdeps=""
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=""
+
+# ### END LIBTOOL CONFIG
+
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x$2 in
+    x)
+        ;;
+    *:)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+        ;;
+    x:*)
+        eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+        ;;
+    *)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+
+
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in $*""; do
+      case $cc_temp in
+        compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+        distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+#! /bin/sh
+## DO NOT EDIT - This file generated from ./build-aux/ltmain.in
+##               by inline-source v2014-01-03.01
+
+# libtool (GNU libtool) 2.4.6
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit , 1996
+
+# Copyright (C) 1996-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+
+PROGRAM=libtool
+PACKAGE=libtool
+VERSION="2.4.6 Debian-2.4.6-15"
+package_revision=2.4.6
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Run './libtool --help' for help with using this script from the
+# command line.
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# After configure completes, it has a better idea of some of the
+# shell tools we need than the defaults used by the functions shared
+# with bootstrap, so set those here where they can still be over-
+# ridden by the user, but otherwise take precedence.
+
+: ${AUTOCONF="autoconf"}
+: ${AUTOMAKE="automake"}
+
+
+## -------------------------- ##
+## Source external libraries. ##
+## -------------------------- ##
+
+# Much of our low-level functionality needs to be sourced from external
+# libraries, which are installed to $pkgauxdir.
+
+# Set a version string for this script.
+scriptversion=2015-01-20.17; # UTC
+
+# General shell script boiler plate, and helper functions.
+# Written by Gary V. Vaughan, 2004
+
+# Copyright (C) 2004-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# As a special exception to the GNU General Public License, if you distribute
+# this file as part of a program or library that is built using GNU Libtool,
+# you may include this file under the same distribution terms that you use
+# for the rest of that program.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Evaluate this file near the top of your script to gain access to
+# the functions and variables defined here:
+#
+#   . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
+#
+# If you need to override any of the default environment variable
+# settings, do that before evaluating this file.
+
+
+## -------------------- ##
+## Shell normalisation. ##
+## -------------------- ##
+
+# Some shells need a little help to be as Bourne compatible as possible.
+# Before doing anything else, make sure all that help has been provided!
+
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
+fi
+
+# NLS nuisances: We save the old values in case they are required later.
+_G_user_locale=
+_G_safe_locale=
+for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+do
+  eval "if test set = \"\${$_G_var+set}\"; then
+          save_$_G_var=\$$_G_var
+          $_G_var=C
+	  export $_G_var
+	  _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
+	  _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
+	fi"
+done
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Make sure IFS has a sensible default
+sp=' '
+nl='
+'
+IFS="$sp	$nl"
+
+# There are apparently some retarded systems that use ';' as a PATH separator!
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+
+## ------------------------- ##
+## Locate command utilities. ##
+## ------------------------- ##
+
+
+# func_executable_p FILE
+# ----------------------
+# Check that FILE is an executable regular file.
+func_executable_p ()
+{
+    test -f "$1" && test -x "$1"
+}
+
+
+# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
+# --------------------------------------------
+# Search for either a program that responds to --version with output
+# containing "GNU", or else returned by CHECK_FUNC otherwise, by
+# trying all the directories in PATH with each of the elements of
+# PROGS_LIST.
+#
+# CHECK_FUNC should accept the path to a candidate program, and
+# set $func_check_prog_result if it truncates its output less than
+# $_G_path_prog_max characters.
+func_path_progs ()
+{
+    _G_progs_list=$1
+    _G_check_func=$2
+    _G_PATH=${3-"$PATH"}
+
+    _G_path_prog_max=0
+    _G_path_prog_found=false
+    _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
+    for _G_dir in $_G_PATH; do
+      IFS=$_G_save_IFS
+      test -z "$_G_dir" && _G_dir=.
+      for _G_prog_name in $_G_progs_list; do
+        for _exeext in '' .EXE; do
+          _G_path_prog=$_G_dir/$_G_prog_name$_exeext
+          func_executable_p "$_G_path_prog" || continue
+          case `"$_G_path_prog" --version 2>&1` in
+            *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
+            *)     $_G_check_func $_G_path_prog
+		   func_path_progs_result=$func_check_prog_result
+		   ;;
+          esac
+          $_G_path_prog_found && break 3
+        done
+      done
+    done
+    IFS=$_G_save_IFS
+    test -z "$func_path_progs_result" && {
+      echo "no acceptable sed could be found in \$PATH" >&2
+      exit 1
+    }
+}
+
+
+# We want to be able to use the functions in this file before configure
+# has figured out where the best binaries are kept, which means we have
+# to search for them ourselves - except when the results are already set
+# where we skip the searches.
+
+# Unless the user overrides by setting SED, search the path for either GNU
+# sed, or the sed that truncates its output the least.
+test -z "$SED" && {
+  _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+  for _G_i in 1 2 3 4 5 6 7; do
+    _G_sed_script=$_G_sed_script$nl$_G_sed_script
+  done
+  echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
+  _G_sed_script=
+
+  func_check_prog_sed ()
+  {
+    _G_path_prog=$1
+
+    _G_count=0
+    printf 0123456789 >conftest.in
+    while :
+    do
+      cat conftest.in conftest.in >conftest.tmp
+      mv conftest.tmp conftest.in
+      cp conftest.in conftest.nl
+      echo '' >> conftest.nl
+      "$_G_path_prog" -f conftest.sed conftest.out 2>/dev/null || break
+      diff conftest.out conftest.nl >/dev/null 2>&1 || break
+      _G_count=`expr $_G_count + 1`
+      if test "$_G_count" -gt "$_G_path_prog_max"; then
+        # Best one so far, save it but keep looking for a better one
+        func_check_prog_result=$_G_path_prog
+        _G_path_prog_max=$_G_count
+      fi
+      # 10*(2^10) chars as input seems more than enough
+      test 10 -lt "$_G_count" && break
+    done
+    rm -f conftest.in conftest.tmp conftest.nl conftest.out
+  }
+
+  func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin
+  rm -f conftest.sed
+  SED=$func_path_progs_result
+}
+
+
+# Unless the user overrides by setting GREP, search the path for either GNU
+# grep, or the grep that truncates its output the least.
+test -z "$GREP" && {
+  func_check_prog_grep ()
+  {
+    _G_path_prog=$1
+
+    _G_count=0
+    _G_path_prog_max=0
+    printf 0123456789 >conftest.in
+    while :
+    do
+      cat conftest.in conftest.in >conftest.tmp
+      mv conftest.tmp conftest.in
+      cp conftest.in conftest.nl
+      echo 'GREP' >> conftest.nl
+      "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' conftest.out 2>/dev/null || break
+      diff conftest.out conftest.nl >/dev/null 2>&1 || break
+      _G_count=`expr $_G_count + 1`
+      if test "$_G_count" -gt "$_G_path_prog_max"; then
+        # Best one so far, save it but keep looking for a better one
+        func_check_prog_result=$_G_path_prog
+        _G_path_prog_max=$_G_count
+      fi
+      # 10*(2^10) chars as input seems more than enough
+      test 10 -lt "$_G_count" && break
+    done
+    rm -f conftest.in conftest.tmp conftest.nl conftest.out
+  }
+
+  func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin
+  GREP=$func_path_progs_result
+}
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# All uppercase variable names are used for environment variables.  These
+# variables can be overridden by the user before calling a script that
+# uses them if a suitable command of that name is not already available
+# in the command search PATH.
+
+: ${CP="cp -f"}
+: ${ECHO="printf %s\n"}
+: ${EGREP="$GREP -E"}
+: ${FGREP="$GREP -F"}
+: ${LN_S="ln -s"}
+: ${MAKE="make"}
+: ${MKDIR="mkdir"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
+
+
+## -------------------- ##
+## Useful sed snippets. ##
+## -------------------- ##
+
+sed_dirname='s|/[^/]*$||'
+sed_basename='s|^.*/||'
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
+
+# Same as above, but do not quote variable references.
+sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution that turns a string into a regex matching for the
+# string literally.
+sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
+
+# Sed substitution that converts a w32 file name or path
+# that contains forward slashes, into one that contains
+# (escaped) backslashes.  A very naive implementation.
+sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
+
+# Re-'\' parameter expansions in output of sed_double_quote_subst that
+# were '\'-ed in input to the same.  If an odd number of '\' preceded a
+# '$' in input to sed_double_quote_subst, that '$' was protected from
+# expansion.  Since each input '\' is now two '\'s, look for any number
+# of runs of four '\'s followed by two '\'s and then a '$'.  '\' that '$'.
+_G_bs='\\'
+_G_bs2='\\\\'
+_G_bs4='\\\\\\\\'
+_G_dollar='\$'
+sed_double_backslash="\
+  s/$_G_bs4/&\\
+/g
+  s/^$_G_bs2$_G_dollar/$_G_bs&/
+  s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
+  s/\n//g"
+
+
+## ----------------- ##
+## Global variables. ##
+## ----------------- ##
+
+# Except for the global variables explicitly listed below, the following
+# functions in the '^func_' namespace, and the '^require_' namespace
+# variables initialised in the 'Resource management' section, sourcing
+# this file will not pollute your global namespace with anything
+# else. There's no portable way to scope variables in Bourne shell
+# though, so actually running these functions will sometimes place
+# results into a variable named after the function, and often use
+# temporary variables in the '^_G_' namespace. If you are careful to
+# avoid using those namespaces casually in your sourcing script, things
+# should continue to work as you expect. And, of course, you can freely
+# overwrite any of the functions or variables defined here before
+# calling anything to customize them.
+
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
+EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
+
+# Allow overriding, eg assuming that you follow the convention of
+# putting '$debug_cmd' at the start of all your functions, you can get
+# bash to show function call trace with:
+#
+#    debug_cmd='echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
+debug_cmd=${debug_cmd-":"}
+exit_cmd=:
+
+# By convention, finish your script with:
+#
+#    exit $exit_status
+#
+# so that you can set exit_status to non-zero if you want to indicate
+# something went wrong during execution without actually bailing out at
+# the point of failure.
+exit_status=$EXIT_SUCCESS
+
+# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
+# is ksh but when the shell is invoked as "sh" and the current value of
+# the _XPG environment variable is not equal to 1 (one), the special
+# positional parameter $0, within a function call, is the name of the
+# function.
+progpath=$0
+
+# The name of this program.
+progname=`$ECHO "$progpath" |$SED "$sed_basename"`
+
+# Make sure we have an absolute progpath for reexecution:
+case $progpath in
+  [\\/]*|[A-Za-z]:\\*) ;;
+  *[\\/]*)
+     progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
+     progdir=`cd "$progdir" && pwd`
+     progpath=$progdir/$progname
+     ;;
+  *)
+     _G_IFS=$IFS
+     IFS=${PATH_SEPARATOR-:}
+     for progdir in $PATH; do
+       IFS=$_G_IFS
+       test -x "$progdir/$progname" && break
+     done
+     IFS=$_G_IFS
+     test -n "$progdir" || progdir=`pwd`
+     progpath=$progdir/$progname
+     ;;
+esac
+
+
+## ----------------- ##
+## Standard options. ##
+## ----------------- ##
+
+# The following options affect the operation of the functions defined
+# below, and should be set appropriately depending on run-time para-
+# meters passed on the command line.
+
+opt_dry_run=false
+opt_quiet=false
+opt_verbose=false
+
+# Categories 'all' and 'none' are always available.  Append any others
+# you will pass as the first argument to func_warning from your own
+# code.
+warning_categories=
+
+# By default, display warnings according to 'opt_warning_types'.  Set
+# 'warning_func'  to ':' to elide all warnings, or func_fatal_error to
+# treat the next displayed warning as a fatal error.
+warning_func=func_warn_and_continue
+
+# Set to 'all' to display all warnings, 'none' to suppress all
+# warnings, or a space delimited list of some subset of
+# 'warning_categories' to display only the listed warnings.
+opt_warning_types=all
+
+
+## -------------------- ##
+## Resource management. ##
+## -------------------- ##
+
+# This section contains definitions for functions that each ensure a
+# particular resource (a file, or a non-empty configuration variable for
+# example) is available, and if appropriate to extract default values
+# from pertinent package files. Call them using their associated
+# 'require_*' variable to ensure that they are executed, at most, once.
+#
+# It's entirely deliberate that calling these functions can set
+# variables that don't obey the namespace limitations obeyed by the rest
+# of this file, in order that that they be as useful as possible to
+# callers.
+
+
+# require_term_colors
+# -------------------
+# Allow display of bold text on terminals that support it.
+require_term_colors=func_require_term_colors
+func_require_term_colors ()
+{
+    $debug_cmd
+
+    test -t 1 && {
+      # COLORTERM and USE_ANSI_COLORS environment variables take
+      # precedence, because most terminfo databases neglect to describe
+      # whether color sequences are supported.
+      test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
+
+      if test 1 = "$USE_ANSI_COLORS"; then
+        # Standard ANSI escape sequences
+        tc_reset=''
+        tc_bold='';   tc_standout=''
+        tc_red='';   tc_green=''
+        tc_blue='';  tc_cyan=''
+      else
+        # Otherwise trust the terminfo database after all.
+        test -n "`tput sgr0 2>/dev/null`" && {
+          tc_reset=`tput sgr0`
+          test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
+          tc_standout=$tc_bold
+          test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
+          test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
+          test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
+          test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
+          test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
+        }
+      fi
+    }
+
+    require_term_colors=:
+}
+
+
+## ----------------- ##
+## Function library. ##
+## ----------------- ##
+
+# This section contains a variety of useful functions to call in your
+# scripts. Take note of the portable wrappers for features provided by
+# some modern shells, which will fall back to slower equivalents on
+# less featureful shells.
+
+
+# func_append VAR VALUE
+# ---------------------
+# Append VALUE onto the existing contents of VAR.
+
+  # We should try to minimise forks, especially on Windows where they are
+  # unreasonably slow, so skip the feature probes when bash or zsh are
+  # being used:
+  if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
+    : ${_G_HAVE_ARITH_OP="yes"}
+    : ${_G_HAVE_XSI_OPS="yes"}
+    # The += operator was introduced in bash 3.1
+    case $BASH_VERSION in
+      [12].* | 3.0 | 3.0*) ;;
+      *)
+        : ${_G_HAVE_PLUSEQ_OP="yes"}
+        ;;
+    esac
+  fi
+
+  # _G_HAVE_PLUSEQ_OP
+  # Can be empty, in which case the shell is probed, "yes" if += is
+  # useable or anything else if it does not work.
+  test -z "$_G_HAVE_PLUSEQ_OP" \
+    && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
+    && _G_HAVE_PLUSEQ_OP=yes
+
+if test yes = "$_G_HAVE_PLUSEQ_OP"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_append ()
+  {
+    $debug_cmd
+
+    eval "$1+=\$2"
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_append ()
+  {
+    $debug_cmd
+
+    eval "$1=\$$1\$2"
+  }
+fi
+
+
+# func_append_quoted VAR VALUE
+# ----------------------------
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+if test yes = "$_G_HAVE_PLUSEQ_OP"; then
+  eval 'func_append_quoted ()
+  {
+    $debug_cmd
+
+    func_quote_for_eval "$2"
+    eval "$1+=\\ \$func_quote_for_eval_result"
+  }'
+else
+  func_append_quoted ()
+  {
+    $debug_cmd
+
+    func_quote_for_eval "$2"
+    eval "$1=\$$1\\ \$func_quote_for_eval_result"
+  }
+fi
+
+
+# func_append_uniq VAR VALUE
+# --------------------------
+# Append unique VALUE onto the existing contents of VAR, assuming
+# entries are delimited by the first character of VALUE.  For example:
+#
+#   func_append_uniq options " --another-option option-argument"
+#
+# will only append to $options if " --another-option option-argument "
+# is not already present somewhere in $options already (note spaces at
+# each end implied by leading space in second argument).
+func_append_uniq ()
+{
+    $debug_cmd
+
+    eval _G_current_value='`$ECHO $'$1'`'
+    _G_delim=`expr "$2" : '\(.\)'`
+
+    case $_G_delim$_G_current_value$_G_delim in
+      *"$2$_G_delim"*) ;;
+      *) func_append "$@" ;;
+    esac
+}
+
+
+# func_arith TERM...
+# ------------------
+# Set func_arith_result to the result of evaluating TERMs.
+  test -z "$_G_HAVE_ARITH_OP" \
+    && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
+    && _G_HAVE_ARITH_OP=yes
+
+if test yes = "$_G_HAVE_ARITH_OP"; then
+  eval 'func_arith ()
+  {
+    $debug_cmd
+
+    func_arith_result=$(( $* ))
+  }'
+else
+  func_arith ()
+  {
+    $debug_cmd
+
+    func_arith_result=`expr "$@"`
+  }
+fi
+
+
+# func_basename FILE
+# ------------------
+# Set func_basename_result to FILE with everything up to and including
+# the last / stripped.
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  # If this shell supports suffix pattern removal, then use it to avoid
+  # forking. Hide the definitions single quotes in case the shell chokes
+  # on unsupported syntax...
+  _b='func_basename_result=${1##*/}'
+  _d='case $1 in
+        */*) func_dirname_result=${1%/*}$2 ;;
+        *  ) func_dirname_result=$3        ;;
+      esac'
+
+else
+  # ...otherwise fall back to using sed.
+  _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
+  _d='func_dirname_result=`$ECHO "$1"  |$SED "$sed_dirname"`
+      if test "X$func_dirname_result" = "X$1"; then
+        func_dirname_result=$3
+      else
+        func_append func_dirname_result "$2"
+      fi'
+fi
+
+eval 'func_basename ()
+{
+    $debug_cmd
+
+    '"$_b"'
+}'
+
+
+# func_dirname FILE APPEND NONDIR_REPLACEMENT
+# -------------------------------------------
+# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+eval 'func_dirname ()
+{
+    $debug_cmd
+
+    '"$_d"'
+}'
+
+
+# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
+# --------------------------------------------------------
+# Perform func_basename and func_dirname in a single function
+# call:
+#   dirname:  Compute the dirname of FILE.  If nonempty,
+#             add APPEND to the result, otherwise set result
+#             to NONDIR_REPLACEMENT.
+#             value returned in "$func_dirname_result"
+#   basename: Compute filename of FILE.
+#             value retuned in "$func_basename_result"
+# For efficiency, we do not delegate to the functions above but instead
+# duplicate the functionality here.
+eval 'func_dirname_and_basename ()
+{
+    $debug_cmd
+
+    '"$_b"'
+    '"$_d"'
+}'
+
+
+# func_echo ARG...
+# ----------------
+# Echo program name prefixed message.
+func_echo ()
+{
+    $debug_cmd
+
+    _G_message=$*
+
+    func_echo_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_IFS
+      $ECHO "$progname: $_G_line"
+    done
+    IFS=$func_echo_IFS
+}
+
+
+# func_echo_all ARG...
+# --------------------
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*"
+}
+
+
+# func_echo_infix_1 INFIX ARG...
+# ------------------------------
+# Echo program name, followed by INFIX on the first line, with any
+# additional lines not showing INFIX.
+func_echo_infix_1 ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    _G_infix=$1; shift
+    _G_indent=$_G_infix
+    _G_prefix="$progname: $_G_infix: "
+    _G_message=$*
+
+    # Strip color escape sequences before counting printable length
+    for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
+    do
+      test -n "$_G_tc" && {
+        _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
+        _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
+      }
+    done
+    _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`"  " ## exclude from sc_prohibit_nested_quotes
+
+    func_echo_infix_1_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_infix_1_IFS
+      $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
+      _G_prefix=$_G_indent
+    done
+    IFS=$func_echo_infix_1_IFS
+}
+
+
+# func_error ARG...
+# -----------------
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    func_echo_infix_1 "  $tc_standout${tc_red}error$tc_reset" "$*" >&2
+}
+
+
+# func_fatal_error ARG...
+# -----------------------
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
+{
+    $debug_cmd
+
+    func_error "$*"
+    exit $EXIT_FAILURE
+}
+
+
+# func_grep EXPRESSION FILENAME
+# -----------------------------
+# Check whether EXPRESSION matches any line of FILENAME, without output.
+func_grep ()
+{
+    $debug_cmd
+
+    $GREP "$1" "$2" >/dev/null 2>&1
+}
+
+
+# func_len STRING
+# ---------------
+# Set func_len_result to the length of STRING. STRING may not
+# start with a hyphen.
+  test -z "$_G_HAVE_XSI_OPS" \
+    && (eval 'x=a/b/c;
+      test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+    && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_len ()
+  {
+    $debug_cmd
+
+    func_len_result=${#1}
+  }'
+else
+  func_len ()
+  {
+    $debug_cmd
+
+    func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
+  }
+fi
+
+
+# func_mkdir_p DIRECTORY-PATH
+# ---------------------------
+# Make sure the entire path to DIRECTORY-PATH is available.
+func_mkdir_p ()
+{
+    $debug_cmd
+
+    _G_directory_path=$1
+    _G_dir_list=
+
+    if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
+
+      # Protect directory names starting with '-'
+      case $_G_directory_path in
+        -*) _G_directory_path=./$_G_directory_path ;;
+      esac
+
+      # While some portion of DIR does not yet exist...
+      while test ! -d "$_G_directory_path"; do
+        # ...make a list in topmost first order.  Use a colon delimited
+	# list incase some portion of path contains whitespace.
+        _G_dir_list=$_G_directory_path:$_G_dir_list
+
+        # If the last portion added has no slash in it, the list is done
+        case $_G_directory_path in */*) ;; *) break ;; esac
+
+        # ...otherwise throw away the child directory and loop
+        _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
+      done
+      _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
+
+      func_mkdir_p_IFS=$IFS; IFS=:
+      for _G_dir in $_G_dir_list; do
+	IFS=$func_mkdir_p_IFS
+        # mkdir can fail with a 'File exist' error if two processes
+        # try to create one of the directories concurrently.  Don't
+        # stop in that case!
+        $MKDIR "$_G_dir" 2>/dev/null || :
+      done
+      IFS=$func_mkdir_p_IFS
+
+      # Bail out if we (or some other process) failed to create a directory.
+      test -d "$_G_directory_path" || \
+        func_fatal_error "Failed to create '$1'"
+    fi
+}
+
+
+# func_mktempdir [BASENAME]
+# -------------------------
+# Make a temporary directory that won't clash with other running
+# libtool processes, and avoids race conditions if possible.  If
+# given, BASENAME is the basename for that directory.
+func_mktempdir ()
+{
+    $debug_cmd
+
+    _G_template=${TMPDIR-/tmp}/${1-$progname}
+
+    if test : = "$opt_dry_run"; then
+      # Return a directory name, but don't create it in dry-run mode
+      _G_tmpdir=$_G_template-$$
+    else
+
+      # If mktemp works, use that first and foremost
+      _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
+
+      if test ! -d "$_G_tmpdir"; then
+        # Failing that, at least try and use $RANDOM to avoid a race
+        _G_tmpdir=$_G_template-${RANDOM-0}$$
+
+        func_mktempdir_umask=`umask`
+        umask 0077
+        $MKDIR "$_G_tmpdir"
+        umask $func_mktempdir_umask
+      fi
+
+      # If we're not in dry-run mode, bomb out on failure
+      test -d "$_G_tmpdir" || \
+        func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
+    fi
+
+    $ECHO "$_G_tmpdir"
+}
+
+
+# func_normal_abspath PATH
+# ------------------------
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+func_normal_abspath ()
+{
+    $debug_cmd
+
+    # These SED scripts presuppose an absolute path with a trailing slash.
+    _G_pathcar='s|^/\([^/]*\).*$|\1|'
+    _G_pathcdr='s|^/[^/]*||'
+    _G_removedotparts=':dotsl
+		s|/\./|/|g
+		t dotsl
+		s|/\.$|/|'
+    _G_collapseslashes='s|/\{1,\}|/|g'
+    _G_finalslash='s|/*$|/|'
+
+    # Start from root dir and reassemble the path.
+    func_normal_abspath_result=
+    func_normal_abspath_tpath=$1
+    func_normal_abspath_altnamespace=
+    case $func_normal_abspath_tpath in
+      "")
+        # Empty path, that just means $cwd.
+        func_stripname '' '/' "`pwd`"
+        func_normal_abspath_result=$func_stripname_result
+        return
+        ;;
+      # The next three entries are used to spot a run of precisely
+      # two leading slashes without using negated character classes;
+      # we take advantage of case's first-match behaviour.
+      ///*)
+        # Unusual form of absolute path, do nothing.
+        ;;
+      //*)
+        # Not necessarily an ordinary path; POSIX reserves leading '//'
+        # and for example Cygwin uses it to access remote file shares
+        # over CIFS/SMB, so we conserve a leading double slash if found.
+        func_normal_abspath_altnamespace=/
+        ;;
+      /*)
+        # Absolute path, do nothing.
+        ;;
+      *)
+        # Relative path, prepend $cwd.
+        func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+        ;;
+    esac
+
+    # Cancel out all the simple stuff to save iterations.  We also want
+    # the path to end with a slash for ease of parsing, so make sure
+    # there is one (and only one) here.
+    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
+    while :; do
+      # Processed it all yet?
+      if test / = "$func_normal_abspath_tpath"; then
+        # If we ascended to the root using ".." the result may be empty now.
+        if test -z "$func_normal_abspath_result"; then
+          func_normal_abspath_result=/
+        fi
+        break
+      fi
+      func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_pathcar"`
+      func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_pathcdr"`
+      # Figure out what to do with it
+      case $func_normal_abspath_tcomponent in
+        "")
+          # Trailing empty path component, ignore it.
+          ;;
+        ..)
+          # Parent dir; strip last assembled component from result.
+          func_dirname "$func_normal_abspath_result"
+          func_normal_abspath_result=$func_dirname_result
+          ;;
+        *)
+          # Actual path component, append it.
+          func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
+          ;;
+      esac
+    done
+    # Restore leading double-slash if one was found on entry.
+    func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+
+# func_notquiet ARG...
+# --------------------
+# Echo program name prefixed message only when not in quiet mode.
+func_notquiet ()
+{
+    $debug_cmd
+
+    $opt_quiet || func_echo ${1+"$@"}
+
+    # A bug in bash halts the script if the last line of a function
+    # fails when set -e is in force, so we need another command to
+    # work around that:
+    :
+}
+
+
+# func_relative_path SRCDIR DSTDIR
+# --------------------------------
+# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
+func_relative_path ()
+{
+    $debug_cmd
+
+    func_relative_path_result=
+    func_normal_abspath "$1"
+    func_relative_path_tlibdir=$func_normal_abspath_result
+    func_normal_abspath "$2"
+    func_relative_path_tbindir=$func_normal_abspath_result
+
+    # Ascend the tree starting from libdir
+    while :; do
+      # check if we have found a prefix of bindir
+      case $func_relative_path_tbindir in
+        $func_relative_path_tlibdir)
+          # found an exact match
+          func_relative_path_tcancelled=
+          break
+          ;;
+        $func_relative_path_tlibdir*)
+          # found a matching prefix
+          func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+          func_relative_path_tcancelled=$func_stripname_result
+          if test -z "$func_relative_path_result"; then
+            func_relative_path_result=.
+          fi
+          break
+          ;;
+        *)
+          func_dirname $func_relative_path_tlibdir
+          func_relative_path_tlibdir=$func_dirname_result
+          if test -z "$func_relative_path_tlibdir"; then
+            # Have to descend all the way to the root!
+            func_relative_path_result=../$func_relative_path_result
+            func_relative_path_tcancelled=$func_relative_path_tbindir
+            break
+          fi
+          func_relative_path_result=../$func_relative_path_result
+          ;;
+      esac
+    done
+
+    # Now calculate path; take care to avoid doubling-up slashes.
+    func_stripname '' '/' "$func_relative_path_result"
+    func_relative_path_result=$func_stripname_result
+    func_stripname '/' '/' "$func_relative_path_tcancelled"
+    if test -n "$func_stripname_result"; then
+      func_append func_relative_path_result "/$func_stripname_result"
+    fi
+
+    # Normalisation. If bindir is libdir, return '.' else relative path.
+    if test -n "$func_relative_path_result"; then
+      func_stripname './' '' "$func_relative_path_result"
+      func_relative_path_result=$func_stripname_result
+    fi
+
+    test -n "$func_relative_path_result" || func_relative_path_result=.
+
+    :
+}
+
+
+# func_quote_for_eval ARG...
+# --------------------------
+# Aesthetically quote ARGs to be evaled later.
+# This function returns two values:
+#   i) func_quote_for_eval_result
+#      double-quoted, suitable for a subsequent eval
+#  ii) func_quote_for_eval_unquoted_result
+#      has all characters that are still active within double
+#      quotes backslashified.
+func_quote_for_eval ()
+{
+    $debug_cmd
+
+    func_quote_for_eval_unquoted_result=
+    func_quote_for_eval_result=
+    while test 0 -lt $#; do
+      case $1 in
+        *[\\\`\"\$]*)
+	  _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
+        *)
+          _G_unquoted_arg=$1 ;;
+      esac
+      if test -n "$func_quote_for_eval_unquoted_result"; then
+	func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
+      else
+        func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
+      fi
+
+      case $_G_unquoted_arg in
+        # Double-quote args containing shell metacharacters to delay
+        # word splitting, command substitution and variable expansion
+        # for a subsequent eval.
+        # Many Bourne shells cannot handle close brackets correctly
+        # in scan sets, so we specify it separately.
+        *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+          _G_quoted_arg=\"$_G_unquoted_arg\"
+          ;;
+        *)
+          _G_quoted_arg=$_G_unquoted_arg
+	  ;;
+      esac
+
+      if test -n "$func_quote_for_eval_result"; then
+	func_append func_quote_for_eval_result " $_G_quoted_arg"
+      else
+        func_append func_quote_for_eval_result "$_G_quoted_arg"
+      fi
+      shift
+    done
+}
+
+
+# func_quote_for_expand ARG
+# -------------------------
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
+{
+    $debug_cmd
+
+    case $1 in
+      *[\\\`\"]*)
+	_G_arg=`$ECHO "$1" | $SED \
+	    -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
+      *)
+        _G_arg=$1 ;;
+    esac
+
+    case $_G_arg in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting and command substitution for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        _G_arg=\"$_G_arg\"
+        ;;
+    esac
+
+    func_quote_for_expand_result=$_G_arg
+}
+
+
+# func_stripname PREFIX SUFFIX NAME
+# ---------------------------------
+# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_stripname ()
+  {
+    $debug_cmd
+
+    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+    # positional parameters, so assign one to ordinary variable first.
+    func_stripname_result=$3
+    func_stripname_result=${func_stripname_result#"$1"}
+    func_stripname_result=${func_stripname_result%"$2"}
+  }'
+else
+  func_stripname ()
+  {
+    $debug_cmd
+
+    case $2 in
+      .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
+      *)  func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
+    esac
+  }
+fi
+
+
+# func_show_eval CMD [FAIL_EXP]
+# -----------------------------
+# Unless opt_quiet is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+    $debug_cmd
+
+    _G_cmd=$1
+    _G_fail_exp=${2-':'}
+
+    func_quote_for_expand "$_G_cmd"
+    eval "func_notquiet $func_quote_for_expand_result"
+
+    $opt_dry_run || {
+      eval "$_G_cmd"
+      _G_status=$?
+      if test 0 -ne "$_G_status"; then
+	eval "(exit $_G_status); $_G_fail_exp"
+      fi
+    }
+}
+
+
+# func_show_eval_locale CMD [FAIL_EXP]
+# ------------------------------------
+# Unless opt_quiet is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.  Use the saved locale for evaluation.
+func_show_eval_locale ()
+{
+    $debug_cmd
+
+    _G_cmd=$1
+    _G_fail_exp=${2-':'}
+
+    $opt_quiet || {
+      func_quote_for_expand "$_G_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
+
+    $opt_dry_run || {
+      eval "$_G_user_locale
+	    $_G_cmd"
+      _G_status=$?
+      eval "$_G_safe_locale"
+      if test 0 -ne "$_G_status"; then
+	eval "(exit $_G_status); $_G_fail_exp"
+      fi
+    }
+}
+
+
+# func_tr_sh
+# ----------
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result.  All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+    $debug_cmd
+
+    case $1 in
+    [0-9]* | *[!a-zA-Z0-9_]*)
+      func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
+      ;;
+    * )
+      func_tr_sh_result=$1
+      ;;
+    esac
+}
+
+
+# func_verbose ARG...
+# -------------------
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+    $debug_cmd
+
+    $opt_verbose && func_echo "$*"
+
+    :
+}
+
+
+# func_warn_and_continue ARG...
+# -----------------------------
+# Echo program name prefixed warning message to standard error.
+func_warn_and_continue ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
+}
+
+
+# func_warning CATEGORY ARG...
+# ----------------------------
+# Echo program name prefixed warning message to standard error. Warning
+# messages can be filtered according to CATEGORY, where this function
+# elides messages where CATEGORY is not listed in the global variable
+# 'opt_warning_types'.
+func_warning ()
+{
+    $debug_cmd
+
+    # CATEGORY must be in the warning_categories list!
+    case " $warning_categories " in
+      *" $1 "*) ;;
+      *) func_internal_error "invalid warning category '$1'" ;;
+    esac
+
+    _G_category=$1
+    shift
+
+    case " $opt_warning_types " in
+      *" $_G_category "*) $warning_func ${1+"$@"} ;;
+    esac
+}
+
+
+# func_sort_ver VER1 VER2
+# -----------------------
+# 'sort -V' is not generally available.
+# Note this deviates from the version comparison in automake
+# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
+# but this should suffice as we won't be specifying old
+# version formats or redundant trailing .0 in bootstrap.conf.
+# If we did want full compatibility then we should probably
+# use m4_version_compare from autoconf.
+func_sort_ver ()
+{
+    $debug_cmd
+
+    printf '%s\n%s\n' "$1" "$2" \
+      | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
+}
+
+# func_lt_ver PREV CURR
+# ---------------------
+# Return true if PREV and CURR are in the correct order according to
+# func_sort_ver, otherwise false.  Use it like this:
+#
+#  func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
+func_lt_ver ()
+{
+    $debug_cmd
+
+    test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+#! /bin/sh
+
+# Set a version string for this script.
+scriptversion=2015-10-07.11; # UTC
+
+# A portable, pluggable option parser for Bourne shell.
+# Written by Gary V. Vaughan, 2010
+
+# Copyright (C) 2010-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# This file is a library for parsing options in your shell scripts along
+# with assorted other useful supporting features that you can make use
+# of too.
+#
+# For the simplest scripts you might need only:
+#
+#   #!/bin/sh
+#   . relative/path/to/funclib.sh
+#   . relative/path/to/options-parser
+#   scriptversion=1.0
+#   func_options ${1+"$@"}
+#   eval set dummy "$func_options_result"; shift
+#   ...rest of your script...
+#
+# In order for the '--version' option to work, you will need to have a
+# suitably formatted comment like the one at the top of this file
+# starting with '# Written by ' and ending with '# warranty; '.
+#
+# For '-h' and '--help' to work, you will also need a one line
+# description of your script's purpose in a comment directly above the
+# '# Written by ' line, like the one at the top of this file.
+#
+# The default options also support '--debug', which will turn on shell
+# execution tracing (see the comment above debug_cmd below for another
+# use), and '--verbose' and the func_verbose function to allow your script
+# to display verbose messages only when your user has specified
+# '--verbose'.
+#
+# After sourcing this file, you can plug processing for additional
+# options by amending the variables from the 'Configuration' section
+# below, and following the instructions in the 'Option parsing'
+# section further down.
+
+## -------------- ##
+## Configuration. ##
+## -------------- ##
+
+# You should override these variables in your script after sourcing this
+# file so that they reflect the customisations you have added to the
+# option parser.
+
+# The usage line for option parsing errors and the start of '-h' and
+# '--help' output messages. You can embed shell variables for delayed
+# expansion at the time the message is displayed, but you will need to
+# quote other shell meta-characters carefully to prevent them being
+# expanded when the contents are evaled.
+usage='$progpath [OPTION]...'
+
+# Short help message in response to '-h' and '--help'.  Add to this or
+# override it after sourcing this library to reflect the full set of
+# options your script accepts.
+usage_message="\
+       --debug        enable verbose shell tracing
+   -W, --warnings=CATEGORY
+                      report the warnings falling in CATEGORY [all]
+   -v, --verbose      verbosely report processing
+       --version      print version information and exit
+   -h, --help         print short or long help message and exit
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+long_help_message="
+Warning categories include:
+       'all'          show all warnings
+       'none'         turn off all the warnings
+       'error'        warnings are treated as fatal errors"
+
+# Help message printed before fatal option parsing errors.
+fatal_help="Try '\$progname --help' for more information."
+
+
+
+## ------------------------- ##
+## Hook function management. ##
+## ------------------------- ##
+
+# This section contains functions for adding, removing, and running hooks
+# to the main code.  A hook is just a named list of of function, that can
+# be run in order later on.
+
+# func_hookable FUNC_NAME
+# -----------------------
+# Declare that FUNC_NAME will run hooks added with
+# 'func_add_hook FUNC_NAME ...'.
+func_hookable ()
+{
+    $debug_cmd
+
+    func_append hookable_fns " $1"
+}
+
+
+# func_add_hook FUNC_NAME HOOK_FUNC
+# ---------------------------------
+# Request that FUNC_NAME call HOOK_FUNC before it returns.  FUNC_NAME must
+# first have been declared "hookable" by a call to 'func_hookable'.
+func_add_hook ()
+{
+    $debug_cmd
+
+    case " $hookable_fns " in
+      *" $1 "*) ;;
+      *) func_fatal_error "'$1' does not accept hook functions." ;;
+    esac
+
+    eval func_append ${1}_hooks '" $2"'
+}
+
+
+# func_remove_hook FUNC_NAME HOOK_FUNC
+# ------------------------------------
+# Remove HOOK_FUNC from the list of functions called by FUNC_NAME.
+func_remove_hook ()
+{
+    $debug_cmd
+
+    eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
+}
+
+
+# func_run_hooks FUNC_NAME [ARG]...
+# ---------------------------------
+# Run all hook functions registered to FUNC_NAME.
+# It is assumed that the list of hook functions contains nothing more
+# than a whitespace-delimited list of legal shell function names, and
+# no effort is wasted trying to catch shell meta-characters or preserve
+# whitespace.
+func_run_hooks ()
+{
+    $debug_cmd
+
+    _G_rc_run_hooks=false
+
+    case " $hookable_fns " in
+      *" $1 "*) ;;
+      *) func_fatal_error "'$1' does not support hook funcions.n" ;;
+    esac
+
+    eval _G_hook_fns=\$$1_hooks; shift
+
+    for _G_hook in $_G_hook_fns; do
+      if eval $_G_hook '"$@"'; then
+        # store returned options list back into positional
+        # parameters for next 'cmd' execution.
+        eval _G_hook_result=\$${_G_hook}_result
+        eval set dummy "$_G_hook_result"; shift
+        _G_rc_run_hooks=:
+      fi
+    done
+
+    $_G_rc_run_hooks && func_run_hooks_result=$_G_hook_result
+}
+
+
+
+## --------------- ##
+## Option parsing. ##
+## --------------- ##
+
+# In order to add your own option parsing hooks, you must accept the
+# full positional parameter list in your hook function, you may remove/edit
+# any options that you action, and then pass back the remaining unprocessed
+# options in '_result', escaped suitably for
+# 'eval'.  In this case you also must return $EXIT_SUCCESS to let the
+# hook's caller know that it should pay attention to
+# '_result'.  Returning $EXIT_FAILURE signalizes that
+# arguments are left untouched by the hook and therefore caller will ignore the
+# result variable.
+#
+# Like this:
+#
+#    my_options_prep ()
+#    {
+#        $debug_cmd
+#
+#        # Extend the existing usage message.
+#        usage_message=$usage_message'
+#      -s, --silent       don'\''t print informational messages
+#    '
+#        # No change in '$@' (ignored completely by this hook).  There is
+#        # no need to do the equivalent (but slower) action:
+#        # func_quote_for_eval ${1+"$@"}
+#        # my_options_prep_result=$func_quote_for_eval_result
+#        false
+#    }
+#    func_add_hook func_options_prep my_options_prep
+#
+#
+#    my_silent_option ()
+#    {
+#        $debug_cmd
+#
+#        args_changed=false
+#
+#        # Note that for efficiency, we parse as many options as we can
+#        # recognise in a loop before passing the remainder back to the
+#        # caller on the first unrecognised argument we encounter.
+#        while test $# -gt 0; do
+#          opt=$1; shift
+#          case $opt in
+#            --silent|-s) opt_silent=:
+#                         args_changed=:
+#                         ;;
+#            # Separate non-argument short options:
+#            -s*)         func_split_short_opt "$_G_opt"
+#                         set dummy "$func_split_short_opt_name" \
+#                             "-$func_split_short_opt_arg" ${1+"$@"}
+#                         shift
+#                         args_changed=:
+#                         ;;
+#            *)           # Make sure the first unrecognised option "$_G_opt"
+#                         # is added back to "$@", we could need that later
+#                         # if $args_changed is true.
+#                         set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+#          esac
+#        done
+#
+#        if $args_changed; then
+#          func_quote_for_eval ${1+"$@"}
+#          my_silent_option_result=$func_quote_for_eval_result
+#        fi
+#
+#        $args_changed
+#    }
+#    func_add_hook func_parse_options my_silent_option
+#
+#
+#    my_option_validation ()
+#    {
+#        $debug_cmd
+#
+#        $opt_silent && $opt_verbose && func_fatal_help "\
+#    '--silent' and '--verbose' options are mutually exclusive."
+#
+#        false
+#    }
+#    func_add_hook func_validate_options my_option_validation
+#
+# You'll also need to manually amend $usage_message to reflect the extra
+# options you parse.  It's preferable to append if you can, so that
+# multiple option parsing hooks can be added safely.
+
+
+# func_options_finish [ARG]...
+# ----------------------------
+# Finishing the option parse loop (call 'func_options' hooks ATM).
+func_options_finish ()
+{
+    $debug_cmd
+
+    _G_func_options_finish_exit=false
+    if func_run_hooks func_options ${1+"$@"}; then
+      func_options_finish_result=$func_run_hooks_result
+      _G_func_options_finish_exit=:
+    fi
+
+    $_G_func_options_finish_exit
+}
+
+
+# func_options [ARG]...
+# ---------------------
+# All the functions called inside func_options are hookable. See the
+# individual implementations for details.
+func_hookable func_options
+func_options ()
+{
+    $debug_cmd
+
+    _G_rc_options=false
+
+    for my_func in options_prep parse_options validate_options options_finish
+    do
+      if eval func_$my_func '${1+"$@"}'; then
+        eval _G_res_var='$'"func_${my_func}_result"
+        eval set dummy "$_G_res_var" ; shift
+        _G_rc_options=:
+      fi
+    done
+
+    # Save modified positional parameters for caller.  As a top-level
+    # options-parser function we always need to set the 'func_options_result'
+    # variable (regardless the $_G_rc_options value).
+    if $_G_rc_options; then
+      func_options_result=$_G_res_var
+    else
+      func_quote_for_eval ${1+"$@"}
+      func_options_result=$func_quote_for_eval_result
+    fi
+
+    $_G_rc_options
+}
+
+
+# func_options_prep [ARG]...
+# --------------------------
+# All initialisations required before starting the option parse loop.
+# Note that when calling hook functions, we pass through the list of
+# positional parameters.  If a hook function modifies that list, and
+# needs to propagate that back to rest of this script, then the complete
+# modified list must be put in 'func_run_hooks_result' before
+# returning $EXIT_SUCCESS (otherwise $EXIT_FAILURE is returned).
+func_hookable func_options_prep
+func_options_prep ()
+{
+    $debug_cmd
+
+    # Option defaults:
+    opt_verbose=false
+    opt_warning_types=
+
+    _G_rc_options_prep=false
+    if func_run_hooks func_options_prep ${1+"$@"}; then
+      _G_rc_options_prep=:
+      # save modified positional parameters for caller
+      func_options_prep_result=$func_run_hooks_result
+    fi
+
+    $_G_rc_options_prep
+}
+
+
+# func_parse_options [ARG]...
+# ---------------------------
+# The main option parsing loop.
+func_hookable func_parse_options
+func_parse_options ()
+{
+    $debug_cmd
+
+    func_parse_options_result=
+
+    _G_rc_parse_options=false
+    # this just eases exit handling
+    while test $# -gt 0; do
+      # Defer to hook functions for initial option parsing, so they
+      # get priority in the event of reusing an option name.
+      if func_run_hooks func_parse_options ${1+"$@"}; then
+        eval set dummy "$func_run_hooks_result"; shift
+        _G_rc_parse_options=:
+      fi
+
+      # Break out of the loop if we already parsed every option.
+      test $# -gt 0 || break
+
+      _G_match_parse_options=:
+      _G_opt=$1
+      shift
+      case $_G_opt in
+        --debug|-x)   debug_cmd='set -x'
+                      func_echo "enabling shell trace mode"
+                      $debug_cmd
+                      ;;
+
+        --no-warnings|--no-warning|--no-warn)
+                      set dummy --warnings none ${1+"$@"}
+                      shift
+		      ;;
+
+        --warnings|--warning|-W)
+                      if test $# = 0 && func_missing_arg $_G_opt; then
+                        _G_rc_parse_options=:
+                        break
+                      fi
+                      case " $warning_categories $1" in
+                        *" $1 "*)
+                          # trailing space prevents matching last $1 above
+                          func_append_uniq opt_warning_types " $1"
+                          ;;
+                        *all)
+                          opt_warning_types=$warning_categories
+                          ;;
+                        *none)
+                          opt_warning_types=none
+                          warning_func=:
+                          ;;
+                        *error)
+                          opt_warning_types=$warning_categories
+                          warning_func=func_fatal_error
+                          ;;
+                        *)
+                          func_fatal_error \
+                             "unsupported warning category: '$1'"
+                          ;;
+                      esac
+                      shift
+                      ;;
+
+        --verbose|-v) opt_verbose=: ;;
+        --version)    func_version ;;
+        -\?|-h)       func_usage ;;
+        --help)       func_help ;;
+
+	# Separate optargs to long options (plugins may need this):
+	--*=*)        func_split_equals "$_G_opt"
+	              set dummy "$func_split_equals_lhs" \
+                          "$func_split_equals_rhs" ${1+"$@"}
+                      shift
+                      ;;
+
+       # Separate optargs to short options:
+        -W*)
+                      func_split_short_opt "$_G_opt"
+                      set dummy "$func_split_short_opt_name" \
+                          "$func_split_short_opt_arg" ${1+"$@"}
+                      shift
+                      ;;
+
+        # Separate non-argument short options:
+        -\?*|-h*|-v*|-x*)
+                      func_split_short_opt "$_G_opt"
+                      set dummy "$func_split_short_opt_name" \
+                          "-$func_split_short_opt_arg" ${1+"$@"}
+                      shift
+                      ;;
+
+        --)           _G_rc_parse_options=: ; break ;;
+        -*)           func_fatal_help "unrecognised option: '$_G_opt'" ;;
+        *)            set dummy "$_G_opt" ${1+"$@"}; shift
+                      _G_match_parse_options=false
+                      break
+                      ;;
+      esac
+
+      $_G_match_parse_options && _G_rc_parse_options=:
+    done
+
+
+    if $_G_rc_parse_options; then
+      # save modified positional parameters for caller
+      func_quote_for_eval ${1+"$@"}
+      func_parse_options_result=$func_quote_for_eval_result
+    fi
+
+    $_G_rc_parse_options
+}
+
+
+# func_validate_options [ARG]...
+# ------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+func_hookable func_validate_options
+func_validate_options ()
+{
+    $debug_cmd
+
+    _G_rc_validate_options=false
+
+    # Display all warnings if -W was not given.
+    test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
+
+    if func_run_hooks func_validate_options ${1+"$@"}; then
+      # save modified positional parameters for caller
+      func_validate_options_result=$func_run_hooks_result
+      _G_rc_validate_options=:
+    fi
+
+    # Bail if the options were screwed!
+    $exit_cmd $EXIT_FAILURE
+
+    $_G_rc_validate_options
+}
+
+
+
+## ----------------- ##
+## Helper functions. ##
+## ----------------- ##
+
+# This section contains the helper functions used by the rest of the
+# hookable option parser framework in ascii-betical order.
+
+
+# func_fatal_help ARG...
+# ----------------------
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
+{
+    $debug_cmd
+
+    eval \$ECHO \""Usage: $usage"\"
+    eval \$ECHO \""$fatal_help"\"
+    func_error ${1+"$@"}
+    exit $EXIT_FAILURE
+}
+
+
+# func_help
+# ---------
+# Echo long help message to standard output and exit.
+func_help ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "$long_help_message"
+    exit 0
+}
+
+
+# func_missing_arg ARGNAME
+# ------------------------
+# Echo program name prefixed message to standard error and set global
+# exit_cmd.
+func_missing_arg ()
+{
+    $debug_cmd
+
+    func_error "Missing argument for '$1'."
+    exit_cmd=exit
+}
+
+
+# func_split_equals STRING
+# ------------------------
+# Set func_split_equals_lhs and func_split_equals_rhs shell variables after
+# splitting STRING at the '=' sign.
+test -z "$_G_HAVE_XSI_OPS" \
+    && (eval 'x=a/b/c;
+      test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+    && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_split_equals ()
+  {
+      $debug_cmd
+
+      func_split_equals_lhs=${1%%=*}
+      func_split_equals_rhs=${1#*=}
+      test "x$func_split_equals_lhs" = "x$1" \
+        && func_split_equals_rhs=
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_split_equals ()
+  {
+      $debug_cmd
+
+      func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
+      func_split_equals_rhs=
+      test "x$func_split_equals_lhs" = "x$1" \
+        || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
+  }
+fi #func_split_equals
+
+
+# func_split_short_opt SHORTOPT
+# -----------------------------
+# Set func_split_short_opt_name and func_split_short_opt_arg shell
+# variables after splitting SHORTOPT after the 2nd character.
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_split_short_opt ()
+  {
+      $debug_cmd
+
+      func_split_short_opt_arg=${1#??}
+      func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_split_short_opt ()
+  {
+      $debug_cmd
+
+      func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
+      func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
+  }
+fi #func_split_short_opt
+
+
+# func_usage
+# ----------
+# Echo short help message to standard output and exit.
+func_usage ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
+    exit 0
+}
+
+
+# func_usage_message
+# ------------------
+# Echo short help message to standard output.
+func_usage_message ()
+{
+    $debug_cmd
+
+    eval \$ECHO \""Usage: $usage"\"
+    echo
+    $SED -n 's|^# ||
+        /^Written by/{
+          x;p;x
+        }
+	h
+	/^Written by/q' < "$progpath"
+    echo
+    eval \$ECHO \""$usage_message"\"
+}
+
+
+# func_version
+# ------------
+# Echo version message to standard output and exit.
+func_version ()
+{
+    $debug_cmd
+
+    printf '%s\n' "$progname $scriptversion"
+    $SED -n '
+        /(C)/!b go
+        :more
+        /\./!{
+          N
+          s|\n# | |
+          b more
+        }
+        :go
+        /^# Written by /,/# warranty; / {
+          s|^# ||
+          s|^# *$||
+          s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
+          p
+        }
+        /^# Written by / {
+          s|^# ||
+          p
+        }
+        /^warranty; /q' < "$progpath"
+
+    exit $?
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+
+# Set a version string.
+scriptversion='(GNU libtool) 2.4.6'
+
+
+# func_echo ARG...
+# ----------------
+# Libtool also displays the current mode in messages, so override
+# funclib.sh func_echo with this custom definition.
+func_echo ()
+{
+    $debug_cmd
+
+    _G_message=$*
+
+    func_echo_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_IFS
+      $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line"
+    done
+    IFS=$func_echo_IFS
+}
+
+
+# func_warning ARG...
+# -------------------
+# Libtool warnings are not categorized, so override funclib.sh
+# func_warning with this simpler definition.
+func_warning ()
+{
+    $debug_cmd
+
+    $warning_func ${1+"$@"}
+}
+
+
+## ---------------- ##
+## Options parsing. ##
+## ---------------- ##
+
+# Hook in the functions to make sure our own options are parsed during
+# the option parsing loop.
+
+usage='$progpath [OPTION]... [MODE-ARG]...'
+
+# Short help message in response to '-h'.
+usage_message="Options:
+       --config             show all configuration variables
+       --debug              enable verbose shell tracing
+   -n, --dry-run            display commands without modifying any files
+       --features           display basic configuration information and exit
+       --mode=MODE          use operation mode MODE
+       --no-warnings        equivalent to '-Wnone'
+       --preserve-dup-deps  don't remove duplicate dependency libraries
+       --quiet, --silent    don't print informational messages
+       --tag=TAG            use configuration variables from tag TAG
+   -v, --verbose            print more informational messages than default
+       --version            print version information
+   -W, --warnings=CATEGORY  report the warnings falling in CATEGORY [all]
+   -h, --help, --help-all   print short, long, or detailed help message
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+func_help ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "$long_help_message
+
+MODE must be one of the following:
+
+       clean           remove files from the build directory
+       compile         compile a source file into a libtool object
+       execute         automatically set library path, then run a program
+       finish          complete the installation of libtool libraries
+       install         install libraries or executables
+       link            create a library or an executable
+       uninstall       remove libraries from an installed directory
+
+MODE-ARGS vary depending on the MODE.  When passed as first option,
+'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that.
+Try '$progname --help --mode=MODE' for a more detailed description of MODE.
+
+When reporting a bug, please describe a test case to reproduce it and
+include the following information:
+
+       host-triplet:   $host
+       shell:          $SHELL
+       compiler:       $LTCC
+       compiler flags: $LTCFLAGS
+       linker:         $LD (gnu? $with_gnu_ld)
+       version:        $progname $scriptversion Debian-2.4.6-15
+       automake:       `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
+       autoconf:       `($AUTOCONF --version) 2>/dev/null |$SED 1q`
+
+Report bugs to .
+GNU libtool home page: .
+General help using GNU software: ."
+    exit 0
+}
+
+
+# func_lo2o OBJECT-NAME
+# ---------------------
+# Transform OBJECT-NAME from a '.lo' suffix to the platform specific
+# object suffix.
+
+lo2o=s/\\.lo\$/.$objext/
+o2lo=s/\\.$objext\$/.lo/
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_lo2o ()
+  {
+    case $1 in
+      *.lo) func_lo2o_result=${1%.lo}.$objext ;;
+      *   ) func_lo2o_result=$1               ;;
+    esac
+  }'
+
+  # func_xform LIBOBJ-OR-SOURCE
+  # ---------------------------
+  # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise)
+  # suffix to a '.lo' libtool-object suffix.
+  eval 'func_xform ()
+  {
+    func_xform_result=${1%.*}.lo
+  }'
+else
+  # ...otherwise fall back to using sed.
+  func_lo2o ()
+  {
+    func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"`
+  }
+
+  func_xform ()
+  {
+    func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'`
+  }
+fi
+
+
+# func_fatal_configuration ARG...
+# -------------------------------
+# Echo program name prefixed message to standard error, followed by
+# a configuration failure hint, and exit.
+func_fatal_configuration ()
+{
+    func__fatal_error ${1+"$@"} \
+      "See the $PACKAGE documentation for more information." \
+      "Fatal configuration error."
+}
+
+
+# func_config
+# -----------
+# Display the configuration for all the tags in this script.
+func_config ()
+{
+    re_begincf='^# ### BEGIN LIBTOOL'
+    re_endcf='^# ### END LIBTOOL'
+
+    # Default configuration.
+    $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
+
+    # Now print the configurations for the tags.
+    for tagname in $taglist; do
+      $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
+    done
+
+    exit $?
+}
+
+
+# func_features
+# -------------
+# Display the features supported by this script.
+func_features ()
+{
+    echo "host: $host"
+    if test yes = "$build_libtool_libs"; then
+      echo "enable shared libraries"
+    else
+      echo "disable shared libraries"
+    fi
+    if test yes = "$build_old_libs"; then
+      echo "enable static libraries"
+    else
+      echo "disable static libraries"
+    fi
+
+    exit $?
+}
+
+
+# func_enable_tag TAGNAME
+# -----------------------
+# Verify that TAGNAME is valid, and either flag an error and exit, or
+# enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
+# variable here.
+func_enable_tag ()
+{
+    # Global variable:
+    tagname=$1
+
+    re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
+    re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
+    sed_extractcf=/$re_begincf/,/$re_endcf/p
+
+    # Validate tagname.
+    case $tagname in
+      *[!-_A-Za-z0-9,/]*)
+        func_fatal_error "invalid tag name: $tagname"
+        ;;
+    esac
+
+    # Don't test for the "default" C tag, as we know it's
+    # there but not specially marked.
+    case $tagname in
+        CC) ;;
+    *)
+        if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
+	  taglist="$taglist $tagname"
+
+	  # Evaluate the configuration.  Be careful to quote the path
+	  # and the sed script, to avoid splitting on whitespace, but
+	  # also don't use non-portable quotes within backquotes within
+	  # quotes we have to do it in 2 steps:
+	  extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
+	  eval "$extractedcf"
+        else
+	  func_error "ignoring unknown tag $tagname"
+        fi
+        ;;
+    esac
+}
+
+
+# func_check_version_match
+# ------------------------
+# Ensure that we are using m4 macros, and libtool script from the same
+# release of libtool.
+func_check_version_match ()
+{
+    if test "$package_revision" != "$macro_revision"; then
+      if test "$VERSION" != "$macro_version"; then
+        if test -z "$macro_version"; then
+          cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from an older release.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+        else
+          cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+        fi
+      else
+        cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
+$progname: but the definition of this LT_INIT comes from revision $macro_revision.
+$progname: You should recreate aclocal.m4 with macros from revision $package_revision
+$progname: of $PACKAGE $VERSION and run autoconf again.
+_LT_EOF
+      fi
+
+      exit $EXIT_MISMATCH
+    fi
+}
+
+
+# libtool_options_prep [ARG]...
+# -----------------------------
+# Preparation for options parsed by libtool.
+libtool_options_prep ()
+{
+    $debug_mode
+
+    # Option defaults:
+    opt_config=false
+    opt_dlopen=
+    opt_dry_run=false
+    opt_help=false
+    opt_mode=
+    opt_preserve_dup_deps=false
+    opt_quiet=false
+
+    nonopt=
+    preserve_args=
+
+    _G_rc_lt_options_prep=:
+
+    # Shorthand for --mode=foo, only valid as the first argument
+    case $1 in
+    clean|clea|cle|cl)
+      shift; set dummy --mode clean ${1+"$@"}; shift
+      ;;
+    compile|compil|compi|comp|com|co|c)
+      shift; set dummy --mode compile ${1+"$@"}; shift
+      ;;
+    execute|execut|execu|exec|exe|ex|e)
+      shift; set dummy --mode execute ${1+"$@"}; shift
+      ;;
+    finish|finis|fini|fin|fi|f)
+      shift; set dummy --mode finish ${1+"$@"}; shift
+      ;;
+    install|instal|insta|inst|ins|in|i)
+      shift; set dummy --mode install ${1+"$@"}; shift
+      ;;
+    link|lin|li|l)
+      shift; set dummy --mode link ${1+"$@"}; shift
+      ;;
+    uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
+      shift; set dummy --mode uninstall ${1+"$@"}; shift
+      ;;
+    *)
+      _G_rc_lt_options_prep=false
+      ;;
+    esac
+
+    if $_G_rc_lt_options_prep; then
+      # Pass back the list of options.
+      func_quote_for_eval ${1+"$@"}
+      libtool_options_prep_result=$func_quote_for_eval_result
+    fi
+
+    $_G_rc_lt_options_prep
+}
+func_add_hook func_options_prep libtool_options_prep
+
+
+# libtool_parse_options [ARG]...
+# ---------------------------------
+# Provide handling for libtool specific options.
+libtool_parse_options ()
+{
+    $debug_cmd
+
+    _G_rc_lt_parse_options=false
+
+    # Perform our own loop to consume as many options as possible in
+    # each iteration.
+    while test $# -gt 0; do
+      _G_match_lt_parse_options=:
+      _G_opt=$1
+      shift
+      case $_G_opt in
+        --dry-run|--dryrun|-n)
+                        opt_dry_run=:
+                        ;;
+
+        --config)       func_config ;;
+
+        --dlopen|-dlopen)
+                        opt_dlopen="${opt_dlopen+$opt_dlopen
+}$1"
+                        shift
+                        ;;
+
+        --preserve-dup-deps)
+                        opt_preserve_dup_deps=: ;;
+
+        --features)     func_features ;;
+
+        --finish)       set dummy --mode finish ${1+"$@"}; shift ;;
+
+        --help)         opt_help=: ;;
+
+        --help-all)     opt_help=': help-all' ;;
+
+        --mode)         test $# = 0 && func_missing_arg $_G_opt && break
+                        opt_mode=$1
+                        case $1 in
+                          # Valid mode arguments:
+                          clean|compile|execute|finish|install|link|relink|uninstall) ;;
+
+                          # Catch anything else as an error
+                          *) func_error "invalid argument for $_G_opt"
+                             exit_cmd=exit
+                             break
+                             ;;
+                        esac
+                        shift
+                        ;;
+
+        --no-silent|--no-quiet)
+                        opt_quiet=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --no-warnings|--no-warning|--no-warn)
+                        opt_warning=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --no-verbose)
+                        opt_verbose=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --silent|--quiet)
+                        opt_quiet=:
+                        opt_verbose=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --tag)          test $# = 0 && func_missing_arg $_G_opt && break
+                        opt_tag=$1
+                        func_append preserve_args " $_G_opt $1"
+                        func_enable_tag "$1"
+                        shift
+                        ;;
+
+        --verbose|-v)   opt_quiet=false
+                        opt_verbose=:
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        # An option not handled by this hook function:
+        *)              set dummy "$_G_opt" ${1+"$@"} ; shift
+                        _G_match_lt_parse_options=false
+                        break
+                        ;;
+      esac
+      $_G_match_lt_parse_options && _G_rc_lt_parse_options=:
+    done
+
+    if $_G_rc_lt_parse_options; then
+      # save modified positional parameters for caller
+      func_quote_for_eval ${1+"$@"}
+      libtool_parse_options_result=$func_quote_for_eval_result
+    fi
+
+    $_G_rc_lt_parse_options
+}
+func_add_hook func_parse_options libtool_parse_options
+
+
+
+# libtool_validate_options [ARG]...
+# ---------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+libtool_validate_options ()
+{
+    # save first non-option argument
+    if test 0 -lt $#; then
+      nonopt=$1
+      shift
+    fi
+
+    # preserve --debug
+    test : = "$debug_cmd" || func_append preserve_args " --debug"
+
+    case $host in
+      # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452
+      # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788
+      *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*)
+        # don't eliminate duplications in $postdeps and $predeps
+        opt_duplicate_compiler_generated_deps=:
+        ;;
+      *)
+        opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
+        ;;
+    esac
+
+    $opt_help || {
+      # Sanity checks first:
+      func_check_version_match
+
+      test yes != "$build_libtool_libs" \
+        && test yes != "$build_old_libs" \
+        && func_fatal_configuration "not configured to build any kind of library"
+
+      # Darwin sucks
+      eval std_shrext=\"$shrext_cmds\"
+
+      # Only execute mode is allowed to have -dlopen flags.
+      if test -n "$opt_dlopen" && test execute != "$opt_mode"; then
+        func_error "unrecognized option '-dlopen'"
+        $ECHO "$help" 1>&2
+        exit $EXIT_FAILURE
+      fi
+
+      # Change the help message to a mode-specific one.
+      generic_help=$help
+      help="Try '$progname --help --mode=$opt_mode' for more information."
+    }
+
+    # Pass back the unparsed argument list
+    func_quote_for_eval ${1+"$@"}
+    libtool_validate_options_result=$func_quote_for_eval_result
+}
+func_add_hook func_validate_options libtool_validate_options
+
+
+# Process options as early as possible so that --help and --version
+# can return quickly.
+func_options ${1+"$@"}
+eval set dummy "$func_options_result"; shift
+
+
+
+## ----------- ##
+##    Main.    ##
+## ----------- ##
+
+magic='%%%MAGIC variable%%%'
+magic_exe='%%%MAGIC EXE variable%%%'
+
+# Global variables.
+extracted_archives=
+extracted_serial=0
+
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end.  This prevents here-documents from being
+# left over by shells.
+exec_cmd=
+
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+}
+
+# func_generated_by_libtool
+# True iff stdin has been generated by Libtool. This function is only
+# a basic sanity check; it will hardly flush out determined imposters.
+func_generated_by_libtool_p ()
+{
+  $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
+}
+
+# func_lalib_p file
+# True iff FILE is a libtool '.la' library or '.lo' object file.
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_lalib_p ()
+{
+    test -f "$1" &&
+      $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p
+}
+
+# func_lalib_unsafe_p file
+# True iff FILE is a libtool '.la' library or '.lo' object file.
+# This function implements the same check as func_lalib_p without
+# resorting to external programs.  To this end, it redirects stdin and
+# closes it afterwards, without saving the original file descriptor.
+# As a safety measure, use it only where a negative result would be
+# fatal anyway.  Works if 'file' does not exist.
+func_lalib_unsafe_p ()
+{
+    lalib_p=no
+    if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
+	for lalib_p_l in 1 2 3 4
+	do
+	    read lalib_p_line
+	    case $lalib_p_line in
+		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
+	    esac
+	done
+	exec 0<&5 5<&-
+    fi
+    test yes = "$lalib_p"
+}
+
+# func_ltwrapper_script_p file
+# True iff FILE is a libtool wrapper script
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_script_p ()
+{
+    test -f "$1" &&
+      $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p
+}
+
+# func_ltwrapper_executable_p file
+# True iff FILE is a libtool wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_executable_p ()
+{
+    func_ltwrapper_exec_suffix=
+    case $1 in
+    *.exe) ;;
+    *) func_ltwrapper_exec_suffix=.exe ;;
+    esac
+    $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
+}
+
+# func_ltwrapper_scriptname file
+# Assumes file is an ltwrapper_executable
+# uses $file to determine the appropriate filename for a
+# temporary ltwrapper_script.
+func_ltwrapper_scriptname ()
+{
+    func_dirname_and_basename "$1" "" "."
+    func_stripname '' '.exe' "$func_basename_result"
+    func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper
+}
+
+# func_ltwrapper_p file
+# True iff FILE is a libtool wrapper script or wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_p ()
+{
+    func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
+}
+
+
+# func_execute_cmds commands fail_cmd
+# Execute tilde-delimited COMMANDS.
+# If FAIL_CMD is given, eval that upon failure.
+# FAIL_CMD may read-access the current command in variable CMD!
+func_execute_cmds ()
+{
+    $debug_cmd
+
+    save_ifs=$IFS; IFS='~'
+    for cmd in $1; do
+      IFS=$sp$nl
+      eval cmd=\"$cmd\"
+      IFS=$save_ifs
+      func_show_eval "$cmd" "${2-:}"
+    done
+    IFS=$save_ifs
+}
+
+
+# func_source file
+# Source FILE, adding directory component if necessary.
+# Note that it is not necessary on cygwin/mingw to append a dot to
+# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
+# behavior happens only for exec(3), not for open(2)!  Also, sourcing
+# 'FILE.' does not work on cygwin managed mounts.
+func_source ()
+{
+    $debug_cmd
+
+    case $1 in
+    */* | *\\*)	. "$1" ;;
+    *)		. "./$1" ;;
+    esac
+}
+
+
+# func_resolve_sysroot PATH
+# Replace a leading = in PATH with a sysroot.  Store the result into
+# func_resolve_sysroot_result
+func_resolve_sysroot ()
+{
+  func_resolve_sysroot_result=$1
+  case $func_resolve_sysroot_result in
+  =*)
+    func_stripname '=' '' "$func_resolve_sysroot_result"
+    func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
+    ;;
+  esac
+}
+
+# func_replace_sysroot PATH
+# If PATH begins with the sysroot, replace it with = and
+# store the result into func_replace_sysroot_result.
+func_replace_sysroot ()
+{
+  case $lt_sysroot:$1 in
+  ?*:"$lt_sysroot"*)
+    func_stripname "$lt_sysroot" '' "$1"
+    func_replace_sysroot_result='='$func_stripname_result
+    ;;
+  *)
+    # Including no sysroot.
+    func_replace_sysroot_result=$1
+    ;;
+  esac
+}
+
+# func_infer_tag arg
+# Infer tagged configuration to use if any are available and
+# if one wasn't chosen via the "--tag" command line option.
+# Only attempt this if the compiler in the base compile
+# command doesn't match the default compiler.
+# arg is usually of the form 'gcc ...'
+func_infer_tag ()
+{
+    $debug_cmd
+
+    if test -n "$available_tags" && test -z "$tagname"; then
+      CC_quoted=
+      for arg in $CC; do
+	func_append_quoted CC_quoted "$arg"
+      done
+      CC_expanded=`func_echo_all $CC`
+      CC_quoted_expanded=`func_echo_all $CC_quoted`
+      case $@ in
+      # Blanks in the command may have been stripped by the calling shell,
+      # but not from the CC environment variable when configure was run.
+      " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+      " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
+      # Blanks at the start of $base_compile will cause this to fail
+      # if we don't check for them as well.
+      *)
+	for z in $available_tags; do
+	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
+	    # Evaluate the configuration.
+	    eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
+	    CC_quoted=
+	    for arg in $CC; do
+	      # Double-quote args containing other shell metacharacters.
+	      func_append_quoted CC_quoted "$arg"
+	    done
+	    CC_expanded=`func_echo_all $CC`
+	    CC_quoted_expanded=`func_echo_all $CC_quoted`
+	    case "$@ " in
+	    " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+	    " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
+	      # The compiler in the base compile command matches
+	      # the one in the tagged configuration.
+	      # Assume this is the tagged configuration we want.
+	      tagname=$z
+	      break
+	      ;;
+	    esac
+	  fi
+	done
+	# If $tagname still isn't set, then no tagged configuration
+	# was found and let the user know that the "--tag" command
+	# line option must be used.
+	if test -z "$tagname"; then
+	  func_echo "unable to infer tagged configuration"
+	  func_fatal_error "specify a tag with '--tag'"
+#	else
+#	  func_verbose "using $tagname tagged configuration"
+	fi
+	;;
+      esac
+    fi
+}
+
+
+
+# func_write_libtool_object output_name pic_name nonpic_name
+# Create a libtool object file (analogous to a ".la" file),
+# but don't create it if we're doing a dry run.
+func_write_libtool_object ()
+{
+    write_libobj=$1
+    if test yes = "$build_libtool_libs"; then
+      write_lobj=\'$2\'
+    else
+      write_lobj=none
+    fi
+
+    if test yes = "$build_old_libs"; then
+      write_oldobj=\'$3\'
+    else
+      write_oldobj=none
+    fi
+
+    $opt_dry_run || {
+      cat >${write_libobj}T </dev/null`
+    if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then
+      func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
+        $SED -e "$sed_naive_backslashify"`
+    else
+      func_convert_core_file_wine_to_w32_result=
+    fi
+  fi
+}
+# end: func_convert_core_file_wine_to_w32
+
+
+# func_convert_core_path_wine_to_w32 ARG
+# Helper function used by path conversion functions when $build is *nix, and
+# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
+# configured wine environment available, with the winepath program in $build's
+# $PATH. Assumes ARG has no leading or trailing path separator characters.
+#
+# ARG is path to be converted from $build format to win32.
+# Result is available in $func_convert_core_path_wine_to_w32_result.
+# Unconvertible file (directory) names in ARG are skipped; if no directory names
+# are convertible, then the result may be empty.
+func_convert_core_path_wine_to_w32 ()
+{
+  $debug_cmd
+
+  # unfortunately, winepath doesn't convert paths, only file names
+  func_convert_core_path_wine_to_w32_result=
+  if test -n "$1"; then
+    oldIFS=$IFS
+    IFS=:
+    for func_convert_core_path_wine_to_w32_f in $1; do
+      IFS=$oldIFS
+      func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
+      if test -n "$func_convert_core_file_wine_to_w32_result"; then
+        if test -z "$func_convert_core_path_wine_to_w32_result"; then
+          func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result
+        else
+          func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
+        fi
+      fi
+    done
+    IFS=$oldIFS
+  fi
+}
+# end: func_convert_core_path_wine_to_w32
+
+
+# func_cygpath ARGS...
+# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
+# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
+# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
+# (2), returns the Cygwin file name or path in func_cygpath_result (input
+# file name or path is assumed to be in w32 format, as previously converted
+# from $build's *nix or MSYS format). In case (3), returns the w32 file name
+# or path in func_cygpath_result (input file name or path is assumed to be in
+# Cygwin format). Returns an empty string on error.
+#
+# ARGS are passed to cygpath, with the last one being the file name or path to
+# be converted.
+#
+# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
+# environment variable; do not put it in $PATH.
+func_cygpath ()
+{
+  $debug_cmd
+
+  if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
+    func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
+    if test "$?" -ne 0; then
+      # on failure, ensure result is empty
+      func_cygpath_result=
+    fi
+  else
+    func_cygpath_result=
+    func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'"
+  fi
+}
+#end: func_cygpath
+
+
+# func_convert_core_msys_to_w32 ARG
+# Convert file name or path ARG from MSYS format to w32 format.  Return
+# result in func_convert_core_msys_to_w32_result.
+func_convert_core_msys_to_w32 ()
+{
+  $debug_cmd
+
+  # awkward: cmd appends spaces to result
+  func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
+    $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"`
+}
+#end: func_convert_core_msys_to_w32
+
+
+# func_convert_file_check ARG1 ARG2
+# Verify that ARG1 (a file name in $build format) was converted to $host
+# format in ARG2. Otherwise, emit an error message, but continue (resetting
+# func_to_host_file_result to ARG1).
+func_convert_file_check ()
+{
+  $debug_cmd
+
+  if test -z "$2" && test -n "$1"; then
+    func_error "Could not determine host file name corresponding to"
+    func_error "  '$1'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback:
+    func_to_host_file_result=$1
+  fi
+}
+# end func_convert_file_check
+
+
+# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
+# Verify that FROM_PATH (a path in $build format) was converted to $host
+# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
+# func_to_host_file_result to a simplistic fallback value (see below).
+func_convert_path_check ()
+{
+  $debug_cmd
+
+  if test -z "$4" && test -n "$3"; then
+    func_error "Could not determine the host path corresponding to"
+    func_error "  '$3'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback.  This is a deliberately simplistic "conversion" and
+    # should not be "improved".  See libtool.info.
+    if test "x$1" != "x$2"; then
+      lt_replace_pathsep_chars="s|$1|$2|g"
+      func_to_host_path_result=`echo "$3" |
+        $SED -e "$lt_replace_pathsep_chars"`
+    else
+      func_to_host_path_result=$3
+    fi
+  fi
+}
+# end func_convert_path_check
+
+
+# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
+# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
+# and appending REPL if ORIG matches BACKPAT.
+func_convert_path_front_back_pathsep ()
+{
+  $debug_cmd
+
+  case $4 in
+  $1 ) func_to_host_path_result=$3$func_to_host_path_result
+    ;;
+  esac
+  case $4 in
+  $2 ) func_append func_to_host_path_result "$3"
+    ;;
+  esac
+}
+# end func_convert_path_front_back_pathsep
+
+
+##################################################
+# $build to $host FILE NAME CONVERSION FUNCTIONS #
+##################################################
+# invoked via '$to_host_file_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# Result will be available in $func_to_host_file_result.
+
+
+# func_to_host_file ARG
+# Converts the file name ARG from $build format to $host format. Return result
+# in func_to_host_file_result.
+func_to_host_file ()
+{
+  $debug_cmd
+
+  $to_host_file_cmd "$1"
+}
+# end func_to_host_file
+
+
+# func_to_tool_file ARG LAZY
+# converts the file name ARG from $build format to toolchain format. Return
+# result in func_to_tool_file_result.  If the conversion in use is listed
+# in (the comma separated) LAZY, no conversion takes place.
+func_to_tool_file ()
+{
+  $debug_cmd
+
+  case ,$2, in
+    *,"$to_tool_file_cmd",*)
+      func_to_tool_file_result=$1
+      ;;
+    *)
+      $to_tool_file_cmd "$1"
+      func_to_tool_file_result=$func_to_host_file_result
+      ;;
+  esac
+}
+# end func_to_tool_file
+
+
+# func_convert_file_noop ARG
+# Copy ARG to func_to_host_file_result.
+func_convert_file_noop ()
+{
+  func_to_host_file_result=$1
+}
+# end func_convert_file_noop
+
+
+# func_convert_file_msys_to_w32 ARG
+# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_file_result.
+func_convert_file_msys_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_to_host_file_result=$func_convert_core_msys_to_w32_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_w32
+
+
+# func_convert_file_cygwin_to_w32 ARG
+# Convert file name ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_file_cygwin_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
+    # LT_CYGPATH in this case.
+    func_to_host_file_result=`cygpath -m "$1"`
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_cygwin_to_w32
+
+
+# func_convert_file_nix_to_w32 ARG
+# Convert file name ARG from *nix to w32 format.  Requires a wine environment
+# and a working winepath. Returns result in func_to_host_file_result.
+func_convert_file_nix_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_file_wine_to_w32 "$1"
+    func_to_host_file_result=$func_convert_core_file_wine_to_w32_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_w32
+
+
+# func_convert_file_msys_to_cygwin ARG
+# Convert file name ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_file_msys_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_msys_to_w32_result"
+    func_to_host_file_result=$func_cygpath_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_cygwin
+
+
+# func_convert_file_nix_to_cygwin ARG
+# Convert file name ARG from *nix to Cygwin format.  Requires Cygwin installed
+# in a wine environment, working winepath, and LT_CYGPATH set.  Returns result
+# in func_to_host_file_result.
+func_convert_file_nix_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
+    func_convert_core_file_wine_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
+    func_to_host_file_result=$func_cygpath_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_cygwin
+
+
+#############################################
+# $build to $host PATH CONVERSION FUNCTIONS #
+#############################################
+# invoked via '$to_host_path_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# The result will be available in $func_to_host_path_result.
+#
+# Path separators are also converted from $build format to $host format.  If
+# ARG begins or ends with a path separator character, it is preserved (but
+# converted to $host format) on output.
+#
+# All path conversion functions are named using the following convention:
+#   file name conversion function    : func_convert_file_X_to_Y ()
+#   path conversion function         : func_convert_path_X_to_Y ()
+# where, for any given $build/$host combination the 'X_to_Y' value is the
+# same.  If conversion functions are added for new $build/$host combinations,
+# the two new functions must follow this pattern, or func_init_to_host_path_cmd
+# will break.
+
+
+# func_init_to_host_path_cmd
+# Ensures that function "pointer" variable $to_host_path_cmd is set to the
+# appropriate value, based on the value of $to_host_file_cmd.
+to_host_path_cmd=
+func_init_to_host_path_cmd ()
+{
+  $debug_cmd
+
+  if test -z "$to_host_path_cmd"; then
+    func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
+    to_host_path_cmd=func_convert_path_$func_stripname_result
+  fi
+}
+
+
+# func_to_host_path ARG
+# Converts the path ARG from $build format to $host format. Return result
+# in func_to_host_path_result.
+func_to_host_path ()
+{
+  $debug_cmd
+
+  func_init_to_host_path_cmd
+  $to_host_path_cmd "$1"
+}
+# end func_to_host_path
+
+
+# func_convert_path_noop ARG
+# Copy ARG to func_to_host_path_result.
+func_convert_path_noop ()
+{
+  func_to_host_path_result=$1
+}
+# end func_convert_path_noop
+
+
+# func_convert_path_msys_to_w32 ARG
+# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_path_result.
+func_convert_path_msys_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from ARG.  MSYS
+    # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
+    # and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result=$func_convert_core_msys_to_w32_result
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_msys_to_w32
+
+
+# func_convert_path_cygwin_to_w32 ARG
+# Convert path ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_path_cygwin_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_cygwin_to_w32
+
+
+# func_convert_path_nix_to_w32 ARG
+# Convert path ARG from *nix to w32 format.  Requires a wine environment and
+# a working winepath.  Returns result in func_to_host_file_result.
+func_convert_path_nix_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result=$func_convert_core_path_wine_to_w32_result
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_nix_to_w32
+
+
+# func_convert_path_msys_to_cygwin ARG
+# Convert path ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_path_msys_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
+    func_to_host_path_result=$func_cygpath_result
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_msys_to_cygwin
+
+
+# func_convert_path_nix_to_cygwin ARG
+# Convert path ARG from *nix to Cygwin format.  Requires Cygwin installed in a
+# a wine environment, working winepath, and LT_CYGPATH set.  Returns result in
+# func_to_host_file_result.
+func_convert_path_nix_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from
+    # ARG. msys behavior is inconsistent here, cygpath turns them
+    # into '.;' and ';.', and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
+    func_to_host_path_result=$func_cygpath_result
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_nix_to_cygwin
+
+
+# func_dll_def_p FILE
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with _LT_DLL_DEF_P in libtool.m4
+func_dll_def_p ()
+{
+  $debug_cmd
+
+  func_dll_def_p_tmp=`$SED -n \
+    -e 's/^[	 ]*//' \
+    -e '/^\(;.*\)*$/d' \
+    -e 's/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p' \
+    -e q \
+    "$1"`
+  test DEF = "$func_dll_def_p_tmp"
+}
+
+
+# func_mode_compile arg...
+func_mode_compile ()
+{
+    $debug_cmd
+
+    # Get the compilation command and the source file.
+    base_compile=
+    srcfile=$nonopt  #  always keep a non-empty value in "srcfile"
+    suppress_opt=yes
+    suppress_output=
+    arg_mode=normal
+    libobj=
+    later=
+    pie_flag=
+
+    for arg
+    do
+      case $arg_mode in
+      arg  )
+	# do not "continue".  Instead, add this to base_compile
+	lastarg=$arg
+	arg_mode=normal
+	;;
+
+      target )
+	libobj=$arg
+	arg_mode=normal
+	continue
+	;;
+
+      normal )
+	# Accept any command-line options.
+	case $arg in
+	-o)
+	  test -n "$libobj" && \
+	    func_fatal_error "you cannot specify '-o' more than once"
+	  arg_mode=target
+	  continue
+	  ;;
+
+	-pie | -fpie | -fPIE)
+          func_append pie_flag " $arg"
+	  continue
+	  ;;
+
+	-shared | -static | -prefer-pic | -prefer-non-pic)
+	  func_append later " $arg"
+	  continue
+	  ;;
+
+	-no-suppress)
+	  suppress_opt=no
+	  continue
+	  ;;
+
+	-Xcompiler)
+	  arg_mode=arg  #  the next one goes into the "base_compile" arg list
+	  continue      #  The current "srcfile" will either be retained or
+	  ;;            #  replaced later.  I would guess that would be a bug.
+
+	-Wc,*)
+	  func_stripname '-Wc,' '' "$arg"
+	  args=$func_stripname_result
+	  lastarg=
+	  save_ifs=$IFS; IFS=,
+	  for arg in $args; do
+	    IFS=$save_ifs
+	    func_append_quoted lastarg "$arg"
+	  done
+	  IFS=$save_ifs
+	  func_stripname ' ' '' "$lastarg"
+	  lastarg=$func_stripname_result
+
+	  # Add the arguments to base_compile.
+	  func_append base_compile " $lastarg"
+	  continue
+	  ;;
+
+	*)
+	  # Accept the current argument as the source file.
+	  # The previous "srcfile" becomes the current argument.
+	  #
+	  lastarg=$srcfile
+	  srcfile=$arg
+	  ;;
+	esac  #  case $arg
+	;;
+      esac    #  case $arg_mode
+
+      # Aesthetically quote the previous argument.
+      func_append_quoted base_compile "$lastarg"
+    done # for arg
+
+    case $arg_mode in
+    arg)
+      func_fatal_error "you must specify an argument for -Xcompile"
+      ;;
+    target)
+      func_fatal_error "you must specify a target with '-o'"
+      ;;
+    *)
+      # Get the name of the library object.
+      test -z "$libobj" && {
+	func_basename "$srcfile"
+	libobj=$func_basename_result
+      }
+      ;;
+    esac
+
+    # Recognize several different file suffixes.
+    # If the user specifies -o file.o, it is replaced with file.lo
+    case $libobj in
+    *.[cCFSifmso] | \
+    *.ada | *.adb | *.ads | *.asm | \
+    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
+    *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
+      func_xform "$libobj"
+      libobj=$func_xform_result
+      ;;
+    esac
+
+    case $libobj in
+    *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
+    *)
+      func_fatal_error "cannot determine name of library object from '$libobj'"
+      ;;
+    esac
+
+    func_infer_tag $base_compile
+
+    for arg in $later; do
+      case $arg in
+      -shared)
+	test yes = "$build_libtool_libs" \
+	  || func_fatal_configuration "cannot build a shared library"
+	build_old_libs=no
+	continue
+	;;
+
+      -static)
+	build_libtool_libs=no
+	build_old_libs=yes
+	continue
+	;;
+
+      -prefer-pic)
+	pic_mode=yes
+	continue
+	;;
+
+      -prefer-non-pic)
+	pic_mode=no
+	continue
+	;;
+      esac
+    done
+
+    func_quote_for_eval "$libobj"
+    test "X$libobj" != "X$func_quote_for_eval_result" \
+      && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
+      && func_warning "libobj name '$libobj' may not contain shell special characters."
+    func_dirname_and_basename "$obj" "/" ""
+    objname=$func_basename_result
+    xdir=$func_dirname_result
+    lobj=$xdir$objdir/$objname
+
+    test -z "$base_compile" && \
+      func_fatal_help "you must specify a compilation command"
+
+    # Delete any leftover library objects.
+    if test yes = "$build_old_libs"; then
+      removelist="$obj $lobj $libobj ${libobj}T"
+    else
+      removelist="$lobj $libobj ${libobj}T"
+    fi
+
+    # On Cygwin there's no "real" PIC flag so we must build both object types
+    case $host_os in
+    cygwin* | mingw* | pw32* | os2* | cegcc*)
+      pic_mode=default
+      ;;
+    esac
+    if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then
+      # non-PIC code in shared libraries is not supported
+      pic_mode=default
+    fi
+
+    # Calculate the filename of the output object if compiler does
+    # not support -o with -c
+    if test no = "$compiler_c_o"; then
+      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext
+      lockfile=$output_obj.lock
+    else
+      output_obj=
+      need_locks=no
+      lockfile=
+    fi
+
+    # Lock this critical section if it is needed
+    # We use this script file to make the link, it avoids creating a new file
+    if test yes = "$need_locks"; then
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    elif test warn = "$need_locks"; then
+      if test -f "$lockfile"; then
+	$ECHO "\
+*** ERROR, $lockfile exists and contains:
+`cat $lockfile 2>/dev/null`
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+      func_append removelist " $output_obj"
+      $ECHO "$srcfile" > "$lockfile"
+    fi
+
+    $opt_dry_run || $RM $removelist
+    func_append removelist " $lockfile"
+    trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
+
+    func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
+    srcfile=$func_to_tool_file_result
+    func_quote_for_eval "$srcfile"
+    qsrcfile=$func_quote_for_eval_result
+
+    # Only build a PIC object if we are building libtool libraries.
+    if test yes = "$build_libtool_libs"; then
+      # Without this assignment, base_compile gets emptied.
+      fbsd_hideous_sh_bug=$base_compile
+
+      if test no != "$pic_mode"; then
+	command="$base_compile $qsrcfile $pic_flag"
+      else
+	# Don't build PIC code
+	command="$base_compile $qsrcfile"
+      fi
+
+      func_mkdir_p "$xdir$objdir"
+
+      if test -z "$output_obj"; then
+	# Place PIC objects in $objdir
+	func_append command " -o $lobj"
+      fi
+
+      func_show_eval_locale "$command"	\
+          'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
+
+      if test warn = "$need_locks" &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed, then go on to compile the next one
+      if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
+	func_show_eval '$MV "$output_obj" "$lobj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+
+      # Allow error messages only from the first compilation.
+      if test yes = "$suppress_opt"; then
+	suppress_output=' >/dev/null 2>&1'
+      fi
+    fi
+
+    # Only build a position-dependent object if we build old libraries.
+    if test yes = "$build_old_libs"; then
+      if test yes != "$pic_mode"; then
+	# Don't build PIC code
+	command="$base_compile $qsrcfile$pie_flag"
+      else
+	command="$base_compile $qsrcfile $pic_flag"
+      fi
+      if test yes = "$compiler_c_o"; then
+	func_append command " -o $obj"
+      fi
+
+      # Suppress compiler output if we already did a PIC compilation.
+      func_append command "$suppress_output"
+      func_show_eval_locale "$command" \
+        '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
+
+      if test warn = "$need_locks" &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed
+      if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
+	func_show_eval '$MV "$output_obj" "$obj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+    fi
+
+    $opt_dry_run || {
+      func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
+
+      # Unlock the critical section if it was locked
+      if test no != "$need_locks"; then
+	removelist=$lockfile
+        $RM "$lockfile"
+      fi
+    }
+
+    exit $EXIT_SUCCESS
+}
+
+$opt_help || {
+  test compile = "$opt_mode" && func_mode_compile ${1+"$@"}
+}
+
+func_mode_help ()
+{
+    # We need to display help for each of the modes.
+    case $opt_mode in
+      "")
+        # Generic help is extracted from the usage comments
+        # at the start of this file.
+        func_help
+        ;;
+
+      clean)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
+
+Remove files from the build directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically '/bin/rm').  RM-OPTIONS are options (such as '-f') to be passed
+to RM.
+
+If FILE is a libtool library, object or program, all the files associated
+with it are deleted. Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      compile)
+      $ECHO \
+"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
+
+Compile a source file into a libtool library object.
+
+This mode accepts the following additional options:
+
+  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
+  -no-suppress      do not suppress compiler output for multiple passes
+  -prefer-pic       try to build PIC objects only
+  -prefer-non-pic   try to build non-PIC objects only
+  -shared           do not build a '.o' file suitable for static linking
+  -static           only build a '.o' file suitable for static linking
+  -Wc,FLAG          pass FLAG directly to the compiler
+
+COMPILE-COMMAND is a command to be used in creating a 'standard' object file
+from the given SOURCEFILE.
+
+The output file name is determined by removing the directory component from
+SOURCEFILE, then substituting the C source code suffix '.c' with the
+library object suffix, '.lo'."
+        ;;
+
+      execute)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
+
+Automatically set library path, then run a program.
+
+This mode accepts the following additional options:
+
+  -dlopen FILE      add the directory containing FILE to the library path
+
+This mode sets the library path environment variable according to '-dlopen'
+flags.
+
+If any of the ARGS are libtool executable wrappers, then they are translated
+into their corresponding uninstalled binary, and any of their required library
+directories are added to the library path.
+
+Then, COMMAND is executed, with ARGS as arguments."
+        ;;
+
+      finish)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
+
+Complete the installation of libtool libraries.
+
+Each LIBDIR is a directory that contains libtool libraries.
+
+The commands that this mode executes may require superuser privileges.  Use
+the '--dry-run' option if you just want to see what would be executed."
+        ;;
+
+      install)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
+
+Install executables or libraries.
+
+INSTALL-COMMAND is the installation command.  The first component should be
+either the 'install' or 'cp' program.
+
+The following components of INSTALL-COMMAND are treated specially:
+
+  -inst-prefix-dir PREFIX-DIR  Use PREFIX-DIR as a staging area for installation
+
+The rest of the components are interpreted as arguments to that command (only
+BSD-compatible install options are recognized)."
+        ;;
+
+      link)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
+
+Link object files or libraries together to form another library, or to
+create an executable program.
+
+LINK-COMMAND is a command using the C compiler that you would use to create
+a program from several object files.
+
+The following components of LINK-COMMAND are treated specially:
+
+  -all-static       do not do any dynamic linking at all
+  -avoid-version    do not add a version suffix if possible
+  -bindir BINDIR    specify path to binaries directory (for systems where
+                    libraries must be found in the PATH setting at runtime)
+  -dlopen FILE      '-dlpreopen' FILE if it cannot be dlopened at runtime
+  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
+  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
+  -export-symbols SYMFILE
+                    try to export only the symbols listed in SYMFILE
+  -export-symbols-regex REGEX
+                    try to export only the symbols matching REGEX
+  -LLIBDIR          search LIBDIR for required installed libraries
+  -lNAME            OUTPUT-FILE requires the installed library libNAME
+  -module           build a library that can dlopened
+  -no-fast-install  disable the fast-install mode
+  -no-install       link a not-installable executable
+  -no-undefined     declare that a library does not refer to external symbols
+  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
+  -objectlist FILE  use a list of object files found in FILE to specify objects
+  -os2dllname NAME  force a short DLL name on OS/2 (no effect on other OSes)
+  -precious-files-regex REGEX
+                    don't remove output files matching REGEX
+  -release RELEASE  specify package release information
+  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
+  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
+  -shared           only do dynamic linking of libtool libraries
+  -shrext SUFFIX    override the standard shared library file extension
+  -static           do not do any dynamic linking of uninstalled libtool libraries
+  -static-libtool-libs
+                    do not do any dynamic linking of libtool libraries
+  -version-info CURRENT[:REVISION[:AGE]]
+                    specify library version info [each variable defaults to 0]
+  -weak LIBNAME     declare that the target provides the LIBNAME interface
+  -Wc,FLAG
+  -Xcompiler FLAG   pass linker-specific FLAG directly to the compiler
+  -Wl,FLAG
+  -Xlinker FLAG     pass linker-specific FLAG directly to the linker
+  -XCClinker FLAG   pass link-specific FLAG to the compiler driver (CC)
+
+All other options (arguments beginning with '-') are ignored.
+
+Every other argument is treated as a filename.  Files ending in '.la' are
+treated as uninstalled libtool libraries, other files are standard or library
+object files.
+
+If the OUTPUT-FILE ends in '.la', then a libtool library is created,
+only library objects ('.lo' files) may be specified, and '-rpath' is
+required, except when creating a convenience library.
+
+If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created
+using 'ar' and 'ranlib', or on Windows using 'lib'.
+
+If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file
+is created, otherwise an executable program is created."
+        ;;
+
+      uninstall)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
+
+Remove libraries from an installation directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically '/bin/rm').  RM-OPTIONS are options (such as '-f') to be passed
+to RM.
+
+If FILE is a libtool library, all the files associated with it are deleted.
+Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      *)
+        func_fatal_help "invalid operation mode '$opt_mode'"
+        ;;
+    esac
+
+    echo
+    $ECHO "Try '$progname --help' for more information about other modes."
+}
+
+# Now that we've collected a possible --mode arg, show help if necessary
+if $opt_help; then
+  if test : = "$opt_help"; then
+    func_mode_help
+  else
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	func_mode_help
+      done
+    } | $SED -n '1p; 2,$s/^Usage:/  or: /p'
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	echo
+	func_mode_help
+      done
+    } |
+    $SED '1d
+      /^When reporting/,/^Report/{
+	H
+	d
+      }
+      $x
+      /information about other modes/d
+      /more detailed .*MODE/d
+      s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
+  fi
+  exit $?
+fi
+
+
+# func_mode_execute arg...
+func_mode_execute ()
+{
+    $debug_cmd
+
+    # The first argument is the command name.
+    cmd=$nonopt
+    test -z "$cmd" && \
+      func_fatal_help "you must specify a COMMAND"
+
+    # Handle -dlopen flags immediately.
+    for file in $opt_dlopen; do
+      test -f "$file" \
+	|| func_fatal_help "'$file' is not a file"
+
+      dir=
+      case $file in
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "'$lib' is not a valid libtool archive"
+
+	# Read the libtool library.
+	dlname=
+	library_names=
+	func_source "$file"
+
+	# Skip this library if it cannot be dlopened.
+	if test -z "$dlname"; then
+	  # Warn if it was a shared library.
+	  test -n "$library_names" && \
+	    func_warning "'$file' was not linked with '-export-dynamic'"
+	  continue
+	fi
+
+	func_dirname "$file" "" "."
+	dir=$func_dirname_result
+
+	if test -f "$dir/$objdir/$dlname"; then
+	  func_append dir "/$objdir"
+	else
+	  if test ! -f "$dir/$dlname"; then
+	    func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'"
+	  fi
+	fi
+	;;
+
+      *.lo)
+	# Just add the directory containing the .lo file.
+	func_dirname "$file" "" "."
+	dir=$func_dirname_result
+	;;
+
+      *)
+	func_warning "'-dlopen' is ignored for non-libtool libraries and objects"
+	continue
+	;;
+      esac
+
+      # Get the absolute pathname.
+      absdir=`cd "$dir" && pwd`
+      test -n "$absdir" && dir=$absdir
+
+      # Now add the directory to shlibpath_var.
+      if eval "test -z \"\$$shlibpath_var\""; then
+	eval "$shlibpath_var=\"\$dir\""
+      else
+	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
+      fi
+    done
+
+    # This variable tells wrapper scripts just to set shlibpath_var
+    # rather than running their programs.
+    libtool_execute_magic=$magic
+
+    # Check if any of the arguments is a wrapper script.
+    args=
+    for file
+    do
+      case $file in
+      -* | *.la | *.lo ) ;;
+      *)
+	# Do a test to see if this is really a libtool program.
+	if func_ltwrapper_script_p "$file"; then
+	  func_source "$file"
+	  # Transform arg to wrapped name.
+	  file=$progdir/$program
+	elif func_ltwrapper_executable_p "$file"; then
+	  func_ltwrapper_scriptname "$file"
+	  func_source "$func_ltwrapper_scriptname_result"
+	  # Transform arg to wrapped name.
+	  file=$progdir/$program
+	fi
+	;;
+      esac
+      # Quote arguments (to preserve shell metacharacters).
+      func_append_quoted args "$file"
+    done
+
+    if $opt_dry_run; then
+      # Display what would be done.
+      if test -n "$shlibpath_var"; then
+	eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
+	echo "export $shlibpath_var"
+      fi
+      $ECHO "$cmd$args"
+      exit $EXIT_SUCCESS
+    else
+      if test -n "$shlibpath_var"; then
+	# Export the shlibpath_var.
+	eval "export $shlibpath_var"
+      fi
+
+      # Restore saved environment variables
+      for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+      do
+	eval "if test \"\${save_$lt_var+set}\" = set; then
+                $lt_var=\$save_$lt_var; export $lt_var
+	      else
+		$lt_unset $lt_var
+	      fi"
+      done
+
+      # Now prepare to actually exec the command.
+      exec_cmd=\$cmd$args
+    fi
+}
+
+test execute = "$opt_mode" && func_mode_execute ${1+"$@"}
+
+
+# func_mode_finish arg...
+func_mode_finish ()
+{
+    $debug_cmd
+
+    libs=
+    libdirs=
+    admincmds=
+
+    for opt in "$nonopt" ${1+"$@"}
+    do
+      if test -d "$opt"; then
+	func_append libdirs " $opt"
+
+      elif test -f "$opt"; then
+	if func_lalib_unsafe_p "$opt"; then
+	  func_append libs " $opt"
+	else
+	  func_warning "'$opt' is not a valid libtool archive"
+	fi
+
+      else
+	func_fatal_error "invalid argument '$opt'"
+      fi
+    done
+
+    if test -n "$libs"; then
+      if test -n "$lt_sysroot"; then
+        sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
+        sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
+      else
+        sysroot_cmd=
+      fi
+
+      # Remove sysroot references
+      if $opt_dry_run; then
+        for lib in $libs; do
+          echo "removing references to $lt_sysroot and '=' prefixes from $lib"
+        done
+      else
+        tmpdir=`func_mktempdir`
+        for lib in $libs; do
+	  $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
+	    > $tmpdir/tmp-la
+	  mv -f $tmpdir/tmp-la $lib
+	done
+        ${RM}r "$tmpdir"
+      fi
+    fi
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      for libdir in $libdirs; do
+	if test -n "$finish_cmds"; then
+	  # Do each command in the finish commands.
+	  func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
+'"$cmd"'"'
+	fi
+	if test -n "$finish_eval"; then
+	  # Do the single finish_eval.
+	  eval cmds=\"$finish_eval\"
+	  $opt_dry_run || eval "$cmds" || func_append admincmds "
+       $cmds"
+	fi
+      done
+    fi
+
+    # Exit here if they wanted silent mode.
+    $opt_quiet && exit $EXIT_SUCCESS
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      echo "----------------------------------------------------------------------"
+      echo "Libraries have been installed in:"
+      for libdir in $libdirs; do
+	$ECHO "   $libdir"
+      done
+      echo
+      echo "If you ever happen to want to link against installed libraries"
+      echo "in a given directory, LIBDIR, you must either use libtool, and"
+      echo "specify the full pathname of the library, or use the '-LLIBDIR'"
+      echo "flag during linking and do at least one of the following:"
+      if test -n "$shlibpath_var"; then
+	echo "   - add LIBDIR to the '$shlibpath_var' environment variable"
+	echo "     during execution"
+      fi
+      if test -n "$runpath_var"; then
+	echo "   - add LIBDIR to the '$runpath_var' environment variable"
+	echo "     during linking"
+      fi
+      if test -n "$hardcode_libdir_flag_spec"; then
+	libdir=LIBDIR
+	eval flag=\"$hardcode_libdir_flag_spec\"
+
+	$ECHO "   - use the '$flag' linker flag"
+      fi
+      if test -n "$admincmds"; then
+	$ECHO "   - have your system administrator run these commands:$admincmds"
+      fi
+      if test -f /etc/ld.so.conf; then
+	echo "   - have your system administrator add LIBDIR to '/etc/ld.so.conf'"
+      fi
+      echo
+
+      echo "See any operating system documentation about shared libraries for"
+      case $host in
+	solaris2.[6789]|solaris2.1[0-9])
+	  echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
+	  echo "pages."
+	  ;;
+	*)
+	  echo "more information, such as the ld(1) and ld.so(8) manual pages."
+	  ;;
+      esac
+      echo "----------------------------------------------------------------------"
+    fi
+    exit $EXIT_SUCCESS
+}
+
+test finish = "$opt_mode" && func_mode_finish ${1+"$@"}
+
+
+# func_mode_install arg...
+func_mode_install ()
+{
+    $debug_cmd
+
+    # There may be an optional sh(1) argument at the beginning of
+    # install_prog (especially on Windows NT).
+    if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" ||
+       # Allow the use of GNU shtool's install command.
+       case $nonopt in *shtool*) :;; *) false;; esac
+    then
+      # Aesthetically quote it.
+      func_quote_for_eval "$nonopt"
+      install_prog="$func_quote_for_eval_result "
+      arg=$1
+      shift
+    else
+      install_prog=
+      arg=$nonopt
+    fi
+
+    # The real first argument should be the name of the installation program.
+    # Aesthetically quote it.
+    func_quote_for_eval "$arg"
+    func_append install_prog "$func_quote_for_eval_result"
+    install_shared_prog=$install_prog
+    case " $install_prog " in
+      *[\\\ /]cp\ *) install_cp=: ;;
+      *) install_cp=false ;;
+    esac
+
+    # We need to accept at least all the BSD install flags.
+    dest=
+    files=
+    opts=
+    prev=
+    install_type=
+    isdir=false
+    stripme=
+    no_mode=:
+    for arg
+    do
+      arg2=
+      if test -n "$dest"; then
+	func_append files " $dest"
+	dest=$arg
+	continue
+      fi
+
+      case $arg in
+      -d) isdir=: ;;
+      -f)
+	if $install_cp; then :; else
+	  prev=$arg
+	fi
+	;;
+      -g | -m | -o)
+	prev=$arg
+	;;
+      -s)
+	stripme=" -s"
+	continue
+	;;
+      -*)
+	;;
+      *)
+	# If the previous option needed an argument, then skip it.
+	if test -n "$prev"; then
+	  if test X-m = "X$prev" && test -n "$install_override_mode"; then
+	    arg2=$install_override_mode
+	    no_mode=false
+	  fi
+	  prev=
+	else
+	  dest=$arg
+	  continue
+	fi
+	;;
+      esac
+
+      # Aesthetically quote the argument.
+      func_quote_for_eval "$arg"
+      func_append install_prog " $func_quote_for_eval_result"
+      if test -n "$arg2"; then
+	func_quote_for_eval "$arg2"
+      fi
+      func_append install_shared_prog " $func_quote_for_eval_result"
+    done
+
+    test -z "$install_prog" && \
+      func_fatal_help "you must specify an install program"
+
+    test -n "$prev" && \
+      func_fatal_help "the '$prev' option requires an argument"
+
+    if test -n "$install_override_mode" && $no_mode; then
+      if $install_cp; then :; else
+	func_quote_for_eval "$install_override_mode"
+	func_append install_shared_prog " -m $func_quote_for_eval_result"
+      fi
+    fi
+
+    if test -z "$files"; then
+      if test -z "$dest"; then
+	func_fatal_help "no file or destination specified"
+      else
+	func_fatal_help "you must specify a destination"
+      fi
+    fi
+
+    # Strip any trailing slash from the destination.
+    func_stripname '' '/' "$dest"
+    dest=$func_stripname_result
+
+    # Check to see that the destination is a directory.
+    test -d "$dest" && isdir=:
+    if $isdir; then
+      destdir=$dest
+      destname=
+    else
+      func_dirname_and_basename "$dest" "" "."
+      destdir=$func_dirname_result
+      destname=$func_basename_result
+
+      # Not a directory, so check to see that there is only one file specified.
+      set dummy $files; shift
+      test "$#" -gt 1 && \
+	func_fatal_help "'$dest' is not a directory"
+    fi
+    case $destdir in
+    [\\/]* | [A-Za-z]:[\\/]*) ;;
+    *)
+      for file in $files; do
+	case $file in
+	*.lo) ;;
+	*)
+	  func_fatal_help "'$destdir' must be an absolute directory name"
+	  ;;
+	esac
+      done
+      ;;
+    esac
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic=$magic
+
+    staticlibs=
+    future_libdirs=
+    current_libdirs=
+    for file in $files; do
+
+      # Do each installation.
+      case $file in
+      *.$libext)
+	# Do the static libraries later.
+	func_append staticlibs " $file"
+	;;
+
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "'$file' is not a valid libtool archive"
+
+	library_names=
+	old_library=
+	relink_command=
+	func_source "$file"
+
+	# Add the libdir to current_libdirs if it is the destination.
+	if test "X$destdir" = "X$libdir"; then
+	  case "$current_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append current_libdirs " $libdir" ;;
+	  esac
+	else
+	  # Note the libdir as a future libdir.
+	  case "$future_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append future_libdirs " $libdir" ;;
+	  esac
+	fi
+
+	func_dirname "$file" "/" ""
+	dir=$func_dirname_result
+	func_append dir "$objdir"
+
+	if test -n "$relink_command"; then
+	  # Determine the prefix the user has applied to our future dir.
+	  inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
+
+	  # Don't allow the user to place us outside of our expected
+	  # location b/c this prevents finding dependent libraries that
+	  # are installed to the same prefix.
+	  # At present, this check doesn't affect windows .dll's that
+	  # are installed into $libdir/../bin (currently, that works fine)
+	  # but it's something to keep an eye on.
+	  test "$inst_prefix_dir" = "$destdir" && \
+	    func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir"
+
+	  if test -n "$inst_prefix_dir"; then
+	    # Stick the inst_prefix_dir data into the link command.
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
+	  else
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
+	  fi
+
+	  func_warning "relinking '$file'"
+	  func_show_eval "$relink_command" \
+	    'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"'
+	fi
+
+	# See the names of the shared library.
+	set dummy $library_names; shift
+	if test -n "$1"; then
+	  realname=$1
+	  shift
+
+	  srcname=$realname
+	  test -n "$relink_command" && srcname=${realname}T
+
+	  # Install the shared library and build the symlinks.
+	  func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
+	      'exit $?'
+	  tstripme=$stripme
+	  case $host_os in
+	  cygwin* | mingw* | pw32* | cegcc*)
+	    case $realname in
+	    *.dll.a)
+	      tstripme=
+	      ;;
+	    esac
+	    ;;
+	  os2*)
+	    case $realname in
+	    *_dll.a)
+	      tstripme=
+	      ;;
+	    esac
+	    ;;
+	  esac
+	  if test -n "$tstripme" && test -n "$striplib"; then
+	    func_show_eval "$striplib $destdir/$realname" 'exit $?'
+	  fi
+
+	  if test "$#" -gt 0; then
+	    # Delete the old symlinks, and create new ones.
+	    # Try 'ln -sf' first, because the 'ln' binary might depend on
+	    # the symlink we replace!  Solaris /bin/ln does not understand -f,
+	    # so we also need to try rm && ln -s.
+	    for linkname
+	    do
+	      test "$linkname" != "$realname" \
+		&& func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
+	    done
+	  fi
+
+	  # Do each command in the postinstall commands.
+	  lib=$destdir/$realname
+	  func_execute_cmds "$postinstall_cmds" 'exit $?'
+	fi
+
+	# Install the pseudo-library for information purposes.
+	func_basename "$file"
+	name=$func_basename_result
+	instname=$dir/${name}i
+	func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
+
+	# Maybe install the static library, too.
+	test -n "$old_library" && func_append staticlibs " $dir/$old_library"
+	;;
+
+      *.lo)
+	# Install (i.e. copy) a libtool object.
+
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile=$destdir/$destname
+	else
+	  func_basename "$file"
+	  destfile=$func_basename_result
+	  destfile=$destdir/$destfile
+	fi
+
+	# Deduce the name of the destination old-style object file.
+	case $destfile in
+	*.lo)
+	  func_lo2o "$destfile"
+	  staticdest=$func_lo2o_result
+	  ;;
+	*.$objext)
+	  staticdest=$destfile
+	  destfile=
+	  ;;
+	*)
+	  func_fatal_help "cannot copy a libtool object to '$destfile'"
+	  ;;
+	esac
+
+	# Install the libtool object if requested.
+	test -n "$destfile" && \
+	  func_show_eval "$install_prog $file $destfile" 'exit $?'
+
+	# Install the old object if enabled.
+	if test yes = "$build_old_libs"; then
+	  # Deduce the name of the old-style object file.
+	  func_lo2o "$file"
+	  staticobj=$func_lo2o_result
+	  func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
+	fi
+	exit $EXIT_SUCCESS
+	;;
+
+      *)
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile=$destdir/$destname
+	else
+	  func_basename "$file"
+	  destfile=$func_basename_result
+	  destfile=$destdir/$destfile
+	fi
+
+	# If the file is missing, and there is a .exe on the end, strip it
+	# because it is most likely a libtool script we actually want to
+	# install
+	stripped_ext=
+	case $file in
+	  *.exe)
+	    if test ! -f "$file"; then
+	      func_stripname '' '.exe' "$file"
+	      file=$func_stripname_result
+	      stripped_ext=.exe
+	    fi
+	    ;;
+	esac
+
+	# Do a test to see if this is really a libtool program.
+	case $host in
+	*cygwin* | *mingw*)
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      wrapper=$func_ltwrapper_scriptname_result
+	    else
+	      func_stripname '' '.exe' "$file"
+	      wrapper=$func_stripname_result
+	    fi
+	    ;;
+	*)
+	    wrapper=$file
+	    ;;
+	esac
+	if func_ltwrapper_script_p "$wrapper"; then
+	  notinst_deplibs=
+	  relink_command=
+
+	  func_source "$wrapper"
+
+	  # Check the variables that should have been set.
+	  test -z "$generated_by_libtool_version" && \
+	    func_fatal_error "invalid libtool wrapper script '$wrapper'"
+
+	  finalize=:
+	  for lib in $notinst_deplibs; do
+	    # Check to see that each library is installed.
+	    libdir=
+	    if test -f "$lib"; then
+	      func_source "$lib"
+	    fi
+	    libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'`
+	    if test -n "$libdir" && test ! -f "$libfile"; then
+	      func_warning "'$lib' has not been installed in '$libdir'"
+	      finalize=false
+	    fi
+	  done
+
+	  relink_command=
+	  func_source "$wrapper"
+
+	  outputname=
+	  if test no = "$fast_install" && test -n "$relink_command"; then
+	    $opt_dry_run || {
+	      if $finalize; then
+	        tmpdir=`func_mktempdir`
+		func_basename "$file$stripped_ext"
+		file=$func_basename_result
+	        outputname=$tmpdir/$file
+	        # Replace the output file specification.
+	        relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
+
+	        $opt_quiet || {
+	          func_quote_for_expand "$relink_command"
+		  eval "func_echo $func_quote_for_expand_result"
+	        }
+	        if eval "$relink_command"; then :
+	          else
+		  func_error "error: relink '$file' with the above command before installing it"
+		  $opt_dry_run || ${RM}r "$tmpdir"
+		  continue
+	        fi
+	        file=$outputname
+	      else
+	        func_warning "cannot relink '$file'"
+	      fi
+	    }
+	  else
+	    # Install the binary that we compiled earlier.
+	    file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
+	  fi
+	fi
+
+	# remove .exe since cygwin /usr/bin/install will append another
+	# one anyway
+	case $install_prog,$host in
+	*/usr/bin/install*,*cygwin*)
+	  case $file:$destfile in
+	  *.exe:*.exe)
+	    # this is ok
+	    ;;
+	  *.exe:*)
+	    destfile=$destfile.exe
+	    ;;
+	  *:*.exe)
+	    func_stripname '' '.exe' "$destfile"
+	    destfile=$func_stripname_result
+	    ;;
+	  esac
+	  ;;
+	esac
+	func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
+	$opt_dry_run || if test -n "$outputname"; then
+	  ${RM}r "$tmpdir"
+	fi
+	;;
+      esac
+    done
+
+    for file in $staticlibs; do
+      func_basename "$file"
+      name=$func_basename_result
+
+      # Set up the ranlib parameters.
+      oldlib=$destdir/$name
+      func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+      tool_oldlib=$func_to_tool_file_result
+
+      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
+
+      if test -n "$stripme" && test -n "$old_striplib"; then
+	func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
+      fi
+
+      # Do each command in the postinstall commands.
+      func_execute_cmds "$old_postinstall_cmds" 'exit $?'
+    done
+
+    test -n "$future_libdirs" && \
+      func_warning "remember to run '$progname --finish$future_libdirs'"
+
+    if test -n "$current_libdirs"; then
+      # Maybe just do a dry run.
+      $opt_dry_run && current_libdirs=" -n$current_libdirs"
+      exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs'
+    else
+      exit $EXIT_SUCCESS
+    fi
+}
+
+test install = "$opt_mode" && func_mode_install ${1+"$@"}
+
+
+# func_generate_dlsyms outputname originator pic_p
+# Extract symbols from dlprefiles and create ${outputname}S.o with
+# a dlpreopen symbol table.
+func_generate_dlsyms ()
+{
+    $debug_cmd
+
+    my_outputname=$1
+    my_originator=$2
+    my_pic_p=${3-false}
+    my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'`
+    my_dlsyms=
+
+    if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+      if test -n "$NM" && test -n "$global_symbol_pipe"; then
+	my_dlsyms=${my_outputname}S.c
+      else
+	func_error "not configured to extract global symbols from dlpreopened files"
+      fi
+    fi
+
+    if test -n "$my_dlsyms"; then
+      case $my_dlsyms in
+      "") ;;
+      *.c)
+	# Discover the nlist of each of the dlfiles.
+	nlist=$output_objdir/$my_outputname.nm
+
+	func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
+
+	# Parse the name list into a source file.
+	func_verbose "creating $output_objdir/$my_dlsyms"
+
+	$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
+/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */
+/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */
+
+#ifdef __cplusplus
+extern \"C\" {
+#endif
+
+#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
+#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
+#endif
+
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
+/* External symbol declarations for the compiler. */\
+"
+
+	if test yes = "$dlself"; then
+	  func_verbose "generating symbol list for '$output'"
+
+	  $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
+
+	  # Add our own program objects to the symbol list.
+	  progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	  for progfile in $progfiles; do
+	    func_to_tool_file "$progfile" func_convert_file_msys_to_w32
+	    func_verbose "extracting global C symbols from '$func_to_tool_file_result'"
+	    $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
+	  done
+
+	  if test -n "$exclude_expsyms"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  if test -n "$export_symbols_regex"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  # Prepare the list of exported symbols
+	  if test -z "$export_symbols"; then
+	    export_symbols=$output_objdir/$outputname.exp
+	    $opt_dry_run || {
+	      $RM $export_symbols
+	      eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
+	      case $host in
+	      *cygwin* | *mingw* | *cegcc* )
+                eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+                eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
+	        ;;
+	      esac
+	    }
+	  else
+	    $opt_dry_run || {
+	      eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
+	      eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	      case $host in
+	        *cygwin* | *mingw* | *cegcc* )
+	          eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+	          eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
+	          ;;
+	      esac
+	    }
+	  fi
+	fi
+
+	for dlprefile in $dlprefiles; do
+	  func_verbose "extracting global C symbols from '$dlprefile'"
+	  func_basename "$dlprefile"
+	  name=$func_basename_result
+          case $host in
+	    *cygwin* | *mingw* | *cegcc* )
+	      # if an import library, we need to obtain dlname
+	      if func_win32_import_lib_p "$dlprefile"; then
+	        func_tr_sh "$dlprefile"
+	        eval "curr_lafile=\$libfile_$func_tr_sh_result"
+	        dlprefile_dlbasename=
+	        if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
+	          # Use subshell, to avoid clobbering current variable values
+	          dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
+	          if test -n "$dlprefile_dlname"; then
+	            func_basename "$dlprefile_dlname"
+	            dlprefile_dlbasename=$func_basename_result
+	          else
+	            # no lafile. user explicitly requested -dlpreopen .
+	            $sharedlib_from_linklib_cmd "$dlprefile"
+	            dlprefile_dlbasename=$sharedlib_from_linklib_result
+	          fi
+	        fi
+	        $opt_dry_run || {
+	          if test -n "$dlprefile_dlbasename"; then
+	            eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
+	          else
+	            func_warning "Could not compute DLL name from $name"
+	            eval '$ECHO ": $name " >> "$nlist"'
+	          fi
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
+	            $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
+	        }
+	      else # not an import lib
+	        $opt_dry_run || {
+	          eval '$ECHO ": $name " >> "$nlist"'
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	        }
+	      fi
+	    ;;
+	    *)
+	      $opt_dry_run || {
+	        eval '$ECHO ": $name " >> "$nlist"'
+	        func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	        eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	      }
+	    ;;
+          esac
+	done
+
+	$opt_dry_run || {
+	  # Make sure we have at least an empty file.
+	  test -f "$nlist" || : > "$nlist"
+
+	  if test -n "$exclude_expsyms"; then
+	    $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
+	    $MV "$nlist"T "$nlist"
+	  fi
+
+	  # Try sorting and uniquifying the output.
+	  if $GREP -v "^: " < "$nlist" |
+	      if sort -k 3 /dev/null 2>&1; then
+		sort -k 3
+	      else
+		sort +2
+	      fi |
+	      uniq > "$nlist"S; then
+	    :
+	  else
+	    $GREP -v "^: " < "$nlist" > "$nlist"S
+	  fi
+
+	  if test -f "$nlist"S; then
+	    eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
+	  else
+	    echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
+	  fi
+
+	  func_show_eval '$RM "${nlist}I"'
+	  if test -n "$global_symbol_to_import"; then
+	    eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I'
+	  fi
+
+	  echo >> "$output_objdir/$my_dlsyms" "\
+
+/* The mapping between symbol names and symbols.  */
+typedef struct {
+  const char *name;
+  void *address;
+} lt_dlsymlist;
+extern LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[];\
+"
+
+	  if test -s "$nlist"I; then
+	    echo >> "$output_objdir/$my_dlsyms" "\
+static void lt_syminit(void)
+{
+  LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols;
+  for (; symbol->name; ++symbol)
+    {"
+	    $SED 's/.*/      if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms"
+	    echo >> "$output_objdir/$my_dlsyms" "\
+    }
+}"
+	  fi
+	  echo >> "$output_objdir/$my_dlsyms" "\
+LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[] =
+{ {\"$my_originator\", (void *) 0},"
+
+	  if test -s "$nlist"I; then
+	    echo >> "$output_objdir/$my_dlsyms" "\
+  {\"@INIT@\", (void *) <_syminit},"
+	  fi
+
+	  case $need_lib_prefix in
+	  no)
+	    eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  *)
+	    eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  esac
+	  echo >> "$output_objdir/$my_dlsyms" "\
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt_${my_prefix}_LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif\
+"
+	} # !$opt_dry_run
+
+	pic_flag_for_symtable=
+	case "$compile_command " in
+	*" -static "*) ;;
+	*)
+	  case $host in
+	  # compiling the symbol table file with pic_flag works around
+	  # a FreeBSD bug that causes programs to crash when -lm is
+	  # linked before any other PIC object.  But we must not use
+	  # pic_flag when linking with -static.  The problem exists in
+	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
+	  *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
+	  *-*-hpux*)
+	    pic_flag_for_symtable=" $pic_flag"  ;;
+	  *)
+	    $my_pic_p && pic_flag_for_symtable=" $pic_flag"
+	    ;;
+	  esac
+	  ;;
+	esac
+	symtab_cflags=
+	for arg in $LTCFLAGS; do
+	  case $arg in
+	  -pie | -fpie | -fPIE) ;;
+	  *) func_append symtab_cflags " $arg" ;;
+	  esac
+	done
+
+	# Now compile the dynamic symbol file.
+	func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
+
+	# Clean up the generated files.
+	func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"'
+
+	# Transform the symbol file into the correct name.
+	symfileobj=$output_objdir/${my_outputname}S.$objext
+	case $host in
+	*cygwin* | *mingw* | *cegcc* )
+	  if test -f "$output_objdir/$my_outputname.def"; then
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	  else
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  fi
+	  ;;
+	*)
+	  compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  ;;
+	esac
+	;;
+      *)
+	func_fatal_error "unknown suffix for '$my_dlsyms'"
+	;;
+      esac
+    else
+      # We keep going just in case the user didn't refer to
+      # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
+      # really was required.
+
+      # Nullify the symbol file.
+      compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
+      finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
+    fi
+}
+
+# func_cygming_gnu_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is a GNU/binutils-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_gnu_implib_p ()
+{
+  $debug_cmd
+
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
+  test -n "$func_cygming_gnu_implib_tmp"
+}
+
+# func_cygming_ms_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is an MS-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_ms_implib_p ()
+{
+  $debug_cmd
+
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
+  test -n "$func_cygming_ms_implib_tmp"
+}
+
+# func_win32_libid arg
+# return the library type of file 'arg'
+#
+# Need a lot of goo to handle *both* DLLs and import libs
+# Has to be a shell function in order to 'eat' the argument
+# that is supplied when $file_magic_command is called.
+# Despite the name, also deal with 64 bit binaries.
+func_win32_libid ()
+{
+  $debug_cmd
+
+  win32_libid_type=unknown
+  win32_fileres=`file -L $1 2>/dev/null`
+  case $win32_fileres in
+  *ar\ archive\ import\ library*) # definitely import
+    win32_libid_type="x86 archive import"
+    ;;
+  *ar\ archive*) # could be an import, or static
+    # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
+    if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
+       $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
+      case $nm_interface in
+      "MS dumpbin")
+	if func_cygming_ms_implib_p "$1" ||
+	   func_cygming_gnu_implib_p "$1"
+	then
+	  win32_nmres=import
+	else
+	  win32_nmres=
+	fi
+	;;
+      *)
+	func_to_tool_file "$1" func_convert_file_msys_to_w32
+	win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
+	  $SED -n -e '
+	    1,100{
+		/ I /{
+		    s|.*|import|
+		    p
+		    q
+		}
+	    }'`
+	;;
+      esac
+      case $win32_nmres in
+      import*)  win32_libid_type="x86 archive import";;
+      *)        win32_libid_type="x86 archive static";;
+      esac
+    fi
+    ;;
+  *DLL*)
+    win32_libid_type="x86 DLL"
+    ;;
+  *executable*) # but shell scripts are "executable" too...
+    case $win32_fileres in
+    *MS\ Windows\ PE\ Intel*)
+      win32_libid_type="x86 DLL"
+      ;;
+    esac
+    ;;
+  esac
+  $ECHO "$win32_libid_type"
+}
+
+# func_cygming_dll_for_implib ARG
+#
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib ()
+{
+  $debug_cmd
+
+  sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
+}
+
+# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
+#
+# The is the core of a fallback implementation of a
+# platform-specific function to extract the name of the
+# DLL associated with the specified import library LIBNAME.
+#
+# SECTION_NAME is either .idata$6 or .idata$7, depending
+# on the platform and compiler that created the implib.
+#
+# Echos the name of the DLL associated with the
+# specified import library.
+func_cygming_dll_for_implib_fallback_core ()
+{
+  $debug_cmd
+
+  match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
+  $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
+    $SED '/^Contents of section '"$match_literal"':/{
+      # Place marker at beginning of archive member dllname section
+      s/.*/====MARK====/
+      p
+      d
+    }
+    # These lines can sometimes be longer than 43 characters, but
+    # are always uninteresting
+    /:[	 ]*file format pe[i]\{,1\}-/d
+    /^In archive [^:]*:/d
+    # Ensure marker is printed
+    /^====MARK====/p
+    # Remove all lines with less than 43 characters
+    /^.\{43\}/!d
+    # From remaining lines, remove first 43 characters
+    s/^.\{43\}//' |
+    $SED -n '
+      # Join marker and all lines until next marker into a single line
+      /^====MARK====/ b para
+      H
+      $ b para
+      b
+      :para
+      x
+      s/\n//g
+      # Remove the marker
+      s/^====MARK====//
+      # Remove trailing dots and whitespace
+      s/[\. \t]*$//
+      # Print
+      /./p' |
+    # we now have a list, one entry per line, of the stringified
+    # contents of the appropriate section of all members of the
+    # archive that possess that section. Heuristic: eliminate
+    # all those that have a first or second character that is
+    # a '.' (that is, objdump's representation of an unprintable
+    # character.) This should work for all archives with less than
+    # 0x302f exports -- but will fail for DLLs whose name actually
+    # begins with a literal '.' or a single character followed by
+    # a '.'.
+    #
+    # Of those that remain, print the first one.
+    $SED -e '/^\./d;/^.\./d;q'
+}
+
+# func_cygming_dll_for_implib_fallback ARG
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+#
+# This fallback implementation is for use when $DLLTOOL
+# does not support the --identify-strict option.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib_fallback ()
+{
+  $debug_cmd
+
+  if func_cygming_gnu_implib_p "$1"; then
+    # binutils import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
+  elif func_cygming_ms_implib_p "$1"; then
+    # ms-generated import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
+  else
+    # unknown
+    sharedlib_from_linklib_result=
+  fi
+}
+
+
+# func_extract_an_archive dir oldlib
+func_extract_an_archive ()
+{
+    $debug_cmd
+
+    f_ex_an_ar_dir=$1; shift
+    f_ex_an_ar_oldlib=$1
+    if test yes = "$lock_old_archive_extraction"; then
+      lockfile=$f_ex_an_ar_oldlib.lock
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    fi
+    func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
+		   'stat=$?; rm -f "$lockfile"; exit $stat'
+    if test yes = "$lock_old_archive_extraction"; then
+      $opt_dry_run || rm -f "$lockfile"
+    fi
+    if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
+     :
+    else
+      func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
+    fi
+}
+
+
+# func_extract_archives gentop oldlib ...
+func_extract_archives ()
+{
+    $debug_cmd
+
+    my_gentop=$1; shift
+    my_oldlibs=${1+"$@"}
+    my_oldobjs=
+    my_xlib=
+    my_xabs=
+    my_xdir=
+
+    for my_xlib in $my_oldlibs; do
+      # Extract the objects.
+      case $my_xlib in
+	[\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;;
+	*) my_xabs=`pwd`"/$my_xlib" ;;
+      esac
+      func_basename "$my_xlib"
+      my_xlib=$func_basename_result
+      my_xlib_u=$my_xlib
+      while :; do
+        case " $extracted_archives " in
+	*" $my_xlib_u "*)
+	  func_arith $extracted_serial + 1
+	  extracted_serial=$func_arith_result
+	  my_xlib_u=lt$extracted_serial-$my_xlib ;;
+	*) break ;;
+	esac
+      done
+      extracted_archives="$extracted_archives $my_xlib_u"
+      my_xdir=$my_gentop/$my_xlib_u
+
+      func_mkdir_p "$my_xdir"
+
+      case $host in
+      *-darwin*)
+	func_verbose "Extracting $my_xabs"
+	# Do not bother doing anything if just a dry run
+	$opt_dry_run || {
+	  darwin_orig_dir=`pwd`
+	  cd $my_xdir || exit $?
+	  darwin_archive=$my_xabs
+	  darwin_curdir=`pwd`
+	  func_basename "$darwin_archive"
+	  darwin_base_archive=$func_basename_result
+	  darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
+	  if test -n "$darwin_arches"; then
+	    darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
+	    darwin_arch=
+	    func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
+	    for darwin_arch in  $darwin_arches; do
+	      func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch"
+	      $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive"
+	      cd "unfat-$$/$darwin_base_archive-$darwin_arch"
+	      func_extract_an_archive "`pwd`" "$darwin_base_archive"
+	      cd "$darwin_curdir"
+	      $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive"
+	    done # $darwin_arches
+            ## Okay now we've a bunch of thin objects, gotta fatten them up :)
+	    darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u`
+	    darwin_file=
+	    darwin_files=
+	    for darwin_file in $darwin_filelist; do
+	      darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
+	      $LIPO -create -output "$darwin_file" $darwin_files
+	    done # $darwin_filelist
+	    $RM -rf unfat-$$
+	    cd "$darwin_orig_dir"
+	  else
+	    cd $darwin_orig_dir
+	    func_extract_an_archive "$my_xdir" "$my_xabs"
+	  fi # $darwin_arches
+	} # !$opt_dry_run
+	;;
+      *)
+        func_extract_an_archive "$my_xdir" "$my_xabs"
+	;;
+      esac
+      my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
+    done
+
+    func_extract_archives_result=$my_oldobjs
+}
+
+
+# func_emit_wrapper [arg=no]
+#
+# Emit a libtool wrapper script on stdout.
+# Don't directly open a file because we may want to
+# incorporate the script contents within a cygwin/mingw
+# wrapper executable.  Must ONLY be called from within
+# func_mode_link because it depends on a number of variables
+# set therein.
+#
+# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
+# variable will take.  If 'yes', then the emitted script
+# will assume that the directory where it is stored is
+# the $objdir directory.  This is a cygwin/mingw-specific
+# behavior.
+func_emit_wrapper ()
+{
+	func_emit_wrapper_arg1=${1-no}
+
+	$ECHO "\
+#! $SHELL
+
+# $output - temporary wrapper script for $objdir/$outputname
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# The $output program cannot be directly executed until all the libtool
+# libraries that it depends on are installed.
+#
+# This wrapper script should never be moved out of the build directory.
+# If it is, it will not operate correctly.
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='$sed_quote_subst'
+
+# Be Bourne compatible
+if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+relink_command=\"$relink_command\"
+
+# This environment variable determines our operation mode.
+if test \"\$libtool_install_magic\" = \"$magic\"; then
+  # install mode needs the following variables:
+  generated_by_libtool_version='$macro_version'
+  notinst_deplibs='$notinst_deplibs'
+else
+  # When we are sourced in execute mode, \$file and \$ECHO are already set.
+  if test \"\$libtool_execute_magic\" != \"$magic\"; then
+    file=\"\$0\""
+
+    qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
+    $ECHO "\
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+    ECHO=\"$qECHO\"
+  fi
+
+# Very basic option parsing. These options are (a) specific to
+# the libtool wrapper, (b) are identical between the wrapper
+# /script/ and the wrapper /executable/ that is used only on
+# windows platforms, and (c) all begin with the string "--lt-"
+# (application programs are unlikely to have options that match
+# this pattern).
+#
+# There are only two supported options: --lt-debug and
+# --lt-dump-script. There is, deliberately, no --lt-help.
+#
+# The first argument to this parsing function should be the
+# script's $0 value, followed by "$@".
+lt_option_debug=
+func_parse_lt_options ()
+{
+  lt_script_arg0=\$0
+  shift
+  for lt_opt
+  do
+    case \"\$lt_opt\" in
+    --lt-debug) lt_option_debug=1 ;;
+    --lt-dump-script)
+        lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
+        test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
+        lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
+        cat \"\$lt_dump_D/\$lt_dump_F\"
+        exit 0
+      ;;
+    --lt-*)
+        \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
+        exit 1
+      ;;
+    esac
+  done
+
+  # Print the debug banner immediately:
+  if test -n \"\$lt_option_debug\"; then
+    echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2
+  fi
+}
+
+# Used when --lt-debug. Prints its arguments to stdout
+# (redirection is the responsibility of the caller)
+func_lt_dump_args ()
+{
+  lt_dump_args_N=1;
+  for lt_arg
+  do
+    \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\"
+    lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
+  done
+}
+
+# Core function for launching the target application
+func_exec_program_core ()
+{
+"
+  case $host in
+  # Backslashes separate directories on plain windows
+  *-*-mingw | *-*-os2* | *-cegcc*)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
+"
+    ;;
+
+  *)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir/\$program\" \${1+\"\$@\"}
+"
+    ;;
+  esac
+  $ECHO "\
+      \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
+      exit 1
+}
+
+# A function to encapsulate launching the target application
+# Strips options in the --lt-* namespace from \$@ and
+# launches target application with the remaining arguments.
+func_exec_program ()
+{
+  case \" \$* \" in
+  *\\ --lt-*)
+    for lt_wr_arg
+    do
+      case \$lt_wr_arg in
+      --lt-*) ;;
+      *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
+      esac
+      shift
+    done ;;
+  esac
+  func_exec_program_core \${1+\"\$@\"}
+}
+
+  # Parse options
+  func_parse_lt_options \"\$0\" \${1+\"\$@\"}
+
+  # Find the directory that this script lives in.
+  thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
+  test \"x\$thisdir\" = \"x\$file\" && thisdir=.
+
+  # Follow symbolic links until we get to the real thisdir.
+  file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
+  while test -n \"\$file\"; do
+    destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`
+
+    # If there was a directory component, then change thisdir.
+    if test \"x\$destdir\" != \"x\$file\"; then
+      case \"\$destdir\" in
+      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
+      *) thisdir=\"\$thisdir/\$destdir\" ;;
+      esac
+    fi
+
+    file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
+    file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
+  done
+
+  # Usually 'no', except on cygwin/mingw when embedded into
+  # the cwrapper.
+  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
+  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
+    # special case for '.'
+    if test \"\$thisdir\" = \".\"; then
+      thisdir=\`pwd\`
+    fi
+    # remove .libs from thisdir
+    case \"\$thisdir\" in
+    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
+    $objdir )   thisdir=. ;;
+    esac
+  fi
+
+  # Try to get the absolute directory name.
+  absdir=\`cd \"\$thisdir\" && pwd\`
+  test -n \"\$absdir\" && thisdir=\"\$absdir\"
+"
+
+	if test yes = "$fast_install"; then
+	  $ECHO "\
+  program=lt-'$outputname'$exeext
+  progdir=\"\$thisdir/$objdir\"
+
+  if test ! -f \"\$progdir/\$program\" ||
+     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\
+       test \"X\$file\" != \"X\$progdir/\$program\"; }; then
+
+    file=\"\$\$-\$program\"
+
+    if test ! -d \"\$progdir\"; then
+      $MKDIR \"\$progdir\"
+    else
+      $RM \"\$progdir/\$file\"
+    fi"
+
+	  $ECHO "\
+
+    # relink executable if necessary
+    if test -n \"\$relink_command\"; then
+      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
+      else
+	\$ECHO \"\$relink_command_output\" >&2
+	$RM \"\$progdir/\$file\"
+	exit 1
+      fi
+    fi
+
+    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
+    { $RM \"\$progdir/\$program\";
+      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
+    $RM \"\$progdir/\$file\"
+  fi"
+	else
+	  $ECHO "\
+  program='$outputname'
+  progdir=\"\$thisdir/$objdir\"
+"
+	fi
+
+	$ECHO "\
+
+  if test -f \"\$progdir/\$program\"; then"
+
+	# fixup the dll searchpath if we need to.
+	#
+	# Fix the DLL searchpath if we need to.  Do this before prepending
+	# to shlibpath, because on Windows, both are PATH and uninstalled
+	# libraries must come first.
+	if test -n "$dllsearchpath"; then
+	  $ECHO "\
+    # Add the dll search path components to the executable PATH
+    PATH=$dllsearchpath:\$PATH
+"
+	fi
+
+	# Export our shlibpath_var if we have one.
+	if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+	  $ECHO "\
+    # Add our own library path to $shlibpath_var
+    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
+
+    # Some systems cannot cope with colon-terminated $shlibpath_var
+    # The second colon is a workaround for a bug in BeOS R4 sed
+    $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`
+
+    export $shlibpath_var
+"
+	fi
+
+	$ECHO "\
+    if test \"\$libtool_execute_magic\" != \"$magic\"; then
+      # Run the actual program with our arguments.
+      func_exec_program \${1+\"\$@\"}
+    fi
+  else
+    # The program doesn't exist.
+    \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2
+    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
+    \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
+    exit 1
+  fi
+fi\
+"
+}
+
+
+# func_emit_cwrapperexe_src
+# emit the source code for a wrapper executable on stdout
+# Must ONLY be called from within func_mode_link because
+# it depends on a number of variable set therein.
+func_emit_cwrapperexe_src ()
+{
+	cat <
+#include 
+#ifdef _MSC_VER
+# include 
+# include 
+# include 
+#else
+# include 
+# include 
+# ifdef __CYGWIN__
+#  include 
+# endif
+#endif
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
+/* declarations of non-ANSI functions */
+#if defined __MINGW32__
+# ifdef __STRICT_ANSI__
+int _putenv (const char *);
+# endif
+#elif defined __CYGWIN__
+# ifdef __STRICT_ANSI__
+char *realpath (const char *, char *);
+int putenv (char *);
+int setenv (const char *, const char *, int);
+# endif
+/* #elif defined other_platform || defined ... */
+#endif
+
+/* portability defines, excluding path handling macros */
+#if defined _MSC_VER
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+# define S_IXUSR _S_IEXEC
+#elif defined __MINGW32__
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+#elif defined __CYGWIN__
+# define HAVE_SETENV
+# define FOPEN_WB "wb"
+/* #elif defined other platforms ... */
+#endif
+
+#if defined PATH_MAX
+# define LT_PATHMAX PATH_MAX
+#elif defined MAXPATHLEN
+# define LT_PATHMAX MAXPATHLEN
+#else
+# define LT_PATHMAX 1024
+#endif
+
+#ifndef S_IXOTH
+# define S_IXOTH 0
+#endif
+#ifndef S_IXGRP
+# define S_IXGRP 0
+#endif
+
+/* path handling portability macros */
+#ifndef DIR_SEPARATOR
+# define DIR_SEPARATOR '/'
+# define PATH_SEPARATOR ':'
+#endif
+
+#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \
+  defined __OS2__
+# define HAVE_DOS_BASED_FILE_SYSTEM
+# define FOPEN_WB "wb"
+# ifndef DIR_SEPARATOR_2
+#  define DIR_SEPARATOR_2 '\\'
+# endif
+# ifndef PATH_SEPARATOR_2
+#  define PATH_SEPARATOR_2 ';'
+# endif
+#endif
+
+#ifndef DIR_SEPARATOR_2
+# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
+#else /* DIR_SEPARATOR_2 */
+# define IS_DIR_SEPARATOR(ch) \
+	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
+#endif /* DIR_SEPARATOR_2 */
+
+#ifndef PATH_SEPARATOR_2
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
+#else /* PATH_SEPARATOR_2 */
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
+#endif /* PATH_SEPARATOR_2 */
+
+#ifndef FOPEN_WB
+# define FOPEN_WB "w"
+#endif
+#ifndef _O_BINARY
+# define _O_BINARY 0
+#endif
+
+#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
+#define XFREE(stale) do { \
+  if (stale) { free (stale); stale = 0; } \
+} while (0)
+
+#if defined LT_DEBUGWRAPPER
+static int lt_debug = 1;
+#else
+static int lt_debug = 0;
+#endif
+
+const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */
+
+void *xmalloc (size_t num);
+char *xstrdup (const char *string);
+const char *base_name (const char *name);
+char *find_executable (const char *wrapper);
+char *chase_symlinks (const char *pathspec);
+int make_executable (const char *path);
+int check_executable (const char *path);
+char *strendzap (char *str, const char *pat);
+void lt_debugprintf (const char *file, int line, const char *fmt, ...);
+void lt_fatal (const char *file, int line, const char *message, ...);
+static const char *nonnull (const char *s);
+static const char *nonempty (const char *s);
+void lt_setenv (const char *name, const char *value);
+char *lt_extend_str (const char *orig_value, const char *add, int to_end);
+void lt_update_exe_path (const char *name, const char *value);
+void lt_update_lib_path (const char *name, const char *value);
+char **prepare_spawn (char **argv);
+void lt_dump_script (FILE *f);
+EOF
+
+	    cat <= 0)
+      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+    return 1;
+  else
+    return 0;
+}
+
+int
+make_executable (const char *path)
+{
+  int rval = 0;
+  struct stat st;
+
+  lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
+                  nonempty (path));
+  if ((!path) || (!*path))
+    return 0;
+
+  if (stat (path, &st) >= 0)
+    {
+      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
+    }
+  return rval;
+}
+
+/* Searches for the full path of the wrapper.  Returns
+   newly allocated full path name if found, NULL otherwise
+   Does not chase symlinks, even on platforms that support them.
+*/
+char *
+find_executable (const char *wrapper)
+{
+  int has_slash = 0;
+  const char *p;
+  const char *p_next;
+  /* static buffer for getcwd */
+  char tmp[LT_PATHMAX + 1];
+  size_t tmp_len;
+  char *concat_name;
+
+  lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
+                  nonempty (wrapper));
+
+  if ((wrapper == NULL) || (*wrapper == '\0'))
+    return NULL;
+
+  /* Absolute path? */
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
+    {
+      concat_name = xstrdup (wrapper);
+      if (check_executable (concat_name))
+	return concat_name;
+      XFREE (concat_name);
+    }
+  else
+    {
+#endif
+      if (IS_DIR_SEPARATOR (wrapper[0]))
+	{
+	  concat_name = xstrdup (wrapper);
+	  if (check_executable (concat_name))
+	    return concat_name;
+	  XFREE (concat_name);
+	}
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+    }
+#endif
+
+  for (p = wrapper; *p; p++)
+    if (*p == '/')
+      {
+	has_slash = 1;
+	break;
+      }
+  if (!has_slash)
+    {
+      /* no slashes; search PATH */
+      const char *path = getenv ("PATH");
+      if (path != NULL)
+	{
+	  for (p = path; *p; p = p_next)
+	    {
+	      const char *q;
+	      size_t p_len;
+	      for (q = p; *q; q++)
+		if (IS_PATH_SEPARATOR (*q))
+		  break;
+	      p_len = (size_t) (q - p);
+	      p_next = (*q == '\0' ? q : q + 1);
+	      if (p_len == 0)
+		{
+		  /* empty path: current directory */
+		  if (getcwd (tmp, LT_PATHMAX) == NULL)
+		    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+                              nonnull (strerror (errno)));
+		  tmp_len = strlen (tmp);
+		  concat_name =
+		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, tmp, tmp_len);
+		  concat_name[tmp_len] = '/';
+		  strcpy (concat_name + tmp_len + 1, wrapper);
+		}
+	      else
+		{
+		  concat_name =
+		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, p, p_len);
+		  concat_name[p_len] = '/';
+		  strcpy (concat_name + p_len + 1, wrapper);
+		}
+	      if (check_executable (concat_name))
+		return concat_name;
+	      XFREE (concat_name);
+	    }
+	}
+      /* not found in PATH; assume curdir */
+    }
+  /* Relative path | not found in path: prepend cwd */
+  if (getcwd (tmp, LT_PATHMAX) == NULL)
+    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+              nonnull (strerror (errno)));
+  tmp_len = strlen (tmp);
+  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+  memcpy (concat_name, tmp, tmp_len);
+  concat_name[tmp_len] = '/';
+  strcpy (concat_name + tmp_len + 1, wrapper);
+
+  if (check_executable (concat_name))
+    return concat_name;
+  XFREE (concat_name);
+  return NULL;
+}
+
+char *
+chase_symlinks (const char *pathspec)
+{
+#ifndef S_ISLNK
+  return xstrdup (pathspec);
+#else
+  char buf[LT_PATHMAX];
+  struct stat s;
+  char *tmp_pathspec = xstrdup (pathspec);
+  char *p;
+  int has_symlinks = 0;
+  while (strlen (tmp_pathspec) && !has_symlinks)
+    {
+      lt_debugprintf (__FILE__, __LINE__,
+		      "checking path component for symlinks: %s\n",
+		      tmp_pathspec);
+      if (lstat (tmp_pathspec, &s) == 0)
+	{
+	  if (S_ISLNK (s.st_mode) != 0)
+	    {
+	      has_symlinks = 1;
+	      break;
+	    }
+
+	  /* search backwards for last DIR_SEPARATOR */
+	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
+	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    p--;
+	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    {
+	      /* no more DIR_SEPARATORS left */
+	      break;
+	    }
+	  *p = '\0';
+	}
+      else
+	{
+	  lt_fatal (__FILE__, __LINE__,
+		    "error accessing file \"%s\": %s",
+		    tmp_pathspec, nonnull (strerror (errno)));
+	}
+    }
+  XFREE (tmp_pathspec);
+
+  if (!has_symlinks)
+    {
+      return xstrdup (pathspec);
+    }
+
+  tmp_pathspec = realpath (pathspec, buf);
+  if (tmp_pathspec == 0)
+    {
+      lt_fatal (__FILE__, __LINE__,
+		"could not follow symlinks for %s", pathspec);
+    }
+  return xstrdup (tmp_pathspec);
+#endif
+}
+
+char *
+strendzap (char *str, const char *pat)
+{
+  size_t len, patlen;
+
+  assert (str != NULL);
+  assert (pat != NULL);
+
+  len = strlen (str);
+  patlen = strlen (pat);
+
+  if (patlen <= len)
+    {
+      str += len - patlen;
+      if (STREQ (str, pat))
+	*str = '\0';
+    }
+  return str;
+}
+
+void
+lt_debugprintf (const char *file, int line, const char *fmt, ...)
+{
+  va_list args;
+  if (lt_debug)
+    {
+      (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
+      va_start (args, fmt);
+      (void) vfprintf (stderr, fmt, args);
+      va_end (args);
+    }
+}
+
+static void
+lt_error_core (int exit_status, const char *file,
+	       int line, const char *mode,
+	       const char *message, va_list ap)
+{
+  fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
+  vfprintf (stderr, message, ap);
+  fprintf (stderr, ".\n");
+
+  if (exit_status >= 0)
+    exit (exit_status);
+}
+
+void
+lt_fatal (const char *file, int line, const char *message, ...)
+{
+  va_list ap;
+  va_start (ap, message);
+  lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
+  va_end (ap);
+}
+
+static const char *
+nonnull (const char *s)
+{
+  return s ? s : "(null)";
+}
+
+static const char *
+nonempty (const char *s)
+{
+  return (s && !*s) ? "(empty)" : nonnull (s);
+}
+
+void
+lt_setenv (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_setenv) setting '%s' to '%s'\n",
+                  nonnull (name), nonnull (value));
+  {
+#ifdef HAVE_SETENV
+    /* always make a copy, for consistency with !HAVE_SETENV */
+    char *str = xstrdup (value);
+    setenv (name, str, 1);
+#else
+    size_t len = strlen (name) + 1 + strlen (value) + 1;
+    char *str = XMALLOC (char, len);
+    sprintf (str, "%s=%s", name, value);
+    if (putenv (str) != EXIT_SUCCESS)
+      {
+        XFREE (str);
+      }
+#endif
+  }
+}
+
+char *
+lt_extend_str (const char *orig_value, const char *add, int to_end)
+{
+  char *new_value;
+  if (orig_value && *orig_value)
+    {
+      size_t orig_value_len = strlen (orig_value);
+      size_t add_len = strlen (add);
+      new_value = XMALLOC (char, add_len + orig_value_len + 1);
+      if (to_end)
+        {
+          strcpy (new_value, orig_value);
+          strcpy (new_value + orig_value_len, add);
+        }
+      else
+        {
+          strcpy (new_value, add);
+          strcpy (new_value + add_len, orig_value);
+        }
+    }
+  else
+    {
+      new_value = xstrdup (add);
+    }
+  return new_value;
+}
+
+void
+lt_update_exe_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      /* some systems can't cope with a ':'-terminated path #' */
+      size_t len = strlen (new_value);
+      while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
+        {
+          new_value[--len] = '\0';
+        }
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+void
+lt_update_lib_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+EOF
+	    case $host_os in
+	      mingw*)
+		cat <<"EOF"
+
+/* Prepares an argument vector before calling spawn().
+   Note that spawn() does not by itself call the command interpreter
+     (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
+      ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+         GetVersionEx(&v);
+         v.dwPlatformId == VER_PLATFORM_WIN32_NT;
+      }) ? "cmd.exe" : "command.com").
+   Instead it simply concatenates the arguments, separated by ' ', and calls
+   CreateProcess().  We must quote the arguments since Win32 CreateProcess()
+   interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
+   special way:
+   - Space and tab are interpreted as delimiters. They are not treated as
+     delimiters if they are surrounded by double quotes: "...".
+   - Unescaped double quotes are removed from the input. Their only effect is
+     that within double quotes, space and tab are treated like normal
+     characters.
+   - Backslashes not followed by double quotes are not special.
+   - But 2*n+1 backslashes followed by a double quote become
+     n backslashes followed by a double quote (n >= 0):
+       \" -> "
+       \\\" -> \"
+       \\\\\" -> \\"
+ */
+#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+char **
+prepare_spawn (char **argv)
+{
+  size_t argc;
+  char **new_argv;
+  size_t i;
+
+  /* Count number of arguments.  */
+  for (argc = 0; argv[argc] != NULL; argc++)
+    ;
+
+  /* Allocate new argument vector.  */
+  new_argv = XMALLOC (char *, argc + 1);
+
+  /* Put quoted arguments into the new argument vector.  */
+  for (i = 0; i < argc; i++)
+    {
+      const char *string = argv[i];
+
+      if (string[0] == '\0')
+	new_argv[i] = xstrdup ("\"\"");
+      else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
+	{
+	  int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
+	  size_t length;
+	  unsigned int backslashes;
+	  const char *s;
+	  char *quoted_string;
+	  char *p;
+
+	  length = 0;
+	  backslashes = 0;
+	  if (quote_around)
+	    length++;
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		length += backslashes + 1;
+	      length++;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    length += backslashes + 1;
+
+	  quoted_string = XMALLOC (char, length + 1);
+
+	  p = quoted_string;
+	  backslashes = 0;
+	  if (quote_around)
+	    *p++ = '"';
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		{
+		  unsigned int j;
+		  for (j = backslashes + 1; j > 0; j--)
+		    *p++ = '\\';
+		}
+	      *p++ = c;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    {
+	      unsigned int j;
+	      for (j = backslashes; j > 0; j--)
+		*p++ = '\\';
+	      *p++ = '"';
+	    }
+	  *p = '\0';
+
+	  new_argv[i] = quoted_string;
+	}
+      else
+	new_argv[i] = (char *) string;
+    }
+  new_argv[argc] = NULL;
+
+  return new_argv;
+}
+EOF
+		;;
+	    esac
+
+            cat <<"EOF"
+void lt_dump_script (FILE* f)
+{
+EOF
+	    func_emit_wrapper yes |
+	      $SED -n -e '
+s/^\(.\{79\}\)\(..*\)/\1\
+\2/
+h
+s/\([\\"]\)/\\\1/g
+s/$/\\n/
+s/\([^\n]*\).*/  fputs ("\1", f);/p
+g
+D'
+            cat <<"EOF"
+}
+EOF
+}
+# end: func_emit_cwrapperexe_src
+
+# func_win32_import_lib_p ARG
+# True if ARG is an import lib, as indicated by $file_magic_cmd
+func_win32_import_lib_p ()
+{
+    $debug_cmd
+
+    case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
+    *import*) : ;;
+    *) false ;;
+    esac
+}
+
+# func_suncc_cstd_abi
+# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!!
+# Several compiler flags select an ABI that is incompatible with the
+# Cstd library. Avoid specifying it if any are in CXXFLAGS.
+func_suncc_cstd_abi ()
+{
+    $debug_cmd
+
+    case " $compile_command " in
+    *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*)
+      suncc_use_cstd_abi=no
+      ;;
+    *)
+      suncc_use_cstd_abi=yes
+      ;;
+    esac
+}
+
+# func_mode_link arg...
+func_mode_link ()
+{
+    $debug_cmd
+
+    case $host in
+    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+      # It is impossible to link a dll without this setting, and
+      # we shouldn't force the makefile maintainer to figure out
+      # what system we are compiling for in order to pass an extra
+      # flag for every libtool invocation.
+      # allow_undefined=no
+
+      # FIXME: Unfortunately, there are problems with the above when trying
+      # to make a dll that has undefined symbols, in which case not
+      # even a static library is built.  For now, we need to specify
+      # -no-undefined on the libtool link line when we can be certain
+      # that all symbols are satisfied, otherwise we get a static library.
+      allow_undefined=yes
+      ;;
+    *)
+      allow_undefined=yes
+      ;;
+    esac
+    libtool_args=$nonopt
+    base_compile="$nonopt $@"
+    compile_command=$nonopt
+    finalize_command=$nonopt
+
+    compile_rpath=
+    finalize_rpath=
+    compile_shlibpath=
+    finalize_shlibpath=
+    convenience=
+    old_convenience=
+    deplibs=
+    old_deplibs=
+    compiler_flags=
+    linker_flags=
+    dllsearchpath=
+    lib_search_path=`pwd`
+    inst_prefix_dir=
+    new_inherited_linker_flags=
+
+    avoid_version=no
+    bindir=
+    dlfiles=
+    dlprefiles=
+    dlself=no
+    export_dynamic=no
+    export_symbols=
+    export_symbols_regex=
+    generated=
+    libobjs=
+    ltlibs=
+    module=no
+    no_install=no
+    objs=
+    os2dllname=
+    non_pic_objects=
+    precious_files_regex=
+    prefer_static_libs=no
+    preload=false
+    prev=
+    prevarg=
+    release=
+    rpath=
+    xrpath=
+    perm_rpath=
+    temp_rpath=
+    thread_safe=no
+    vinfo=
+    vinfo_number=no
+    weak_libs=
+    single_module=$wl-single_module
+    func_infer_tag $base_compile
+
+    # We need to know -static, to get the right output filenames.
+    for arg
+    do
+      case $arg in
+      -shared)
+	test yes != "$build_libtool_libs" \
+	  && func_fatal_configuration "cannot build a shared library"
+	build_old_libs=no
+	break
+	;;
+      -all-static | -static | -static-libtool-libs)
+	case $arg in
+	-all-static)
+	  if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then
+	    func_warning "complete static linking is impossible in this configuration"
+	  fi
+	  if test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	-static)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=built
+	  ;;
+	-static-libtool-libs)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	esac
+	build_libtool_libs=no
+	build_old_libs=yes
+	break
+	;;
+      esac
+    done
+
+    # See if our shared archives depend on static archives.
+    test -n "$old_archive_from_new_cmds" && build_old_libs=yes
+
+    # Go through the arguments, transforming them on the way.
+    while test "$#" -gt 0; do
+      arg=$1
+      shift
+      func_quote_for_eval "$arg"
+      qarg=$func_quote_for_eval_unquoted_result
+      func_append libtool_args " $func_quote_for_eval_result"
+
+      # If the previous option needs an argument, assign it.
+      if test -n "$prev"; then
+	case $prev in
+	output)
+	  func_append compile_command " @OUTPUT@"
+	  func_append finalize_command " @OUTPUT@"
+	  ;;
+	esac
+
+	case $prev in
+	bindir)
+	  bindir=$arg
+	  prev=
+	  continue
+	  ;;
+	dlfiles|dlprefiles)
+	  $preload || {
+	    # Add the symbol object into the linking commands.
+	    func_append compile_command " @SYMFILE@"
+	    func_append finalize_command " @SYMFILE@"
+	    preload=:
+	  }
+	  case $arg in
+	  *.la | *.lo) ;;  # We handle these cases below.
+	  force)
+	    if test no = "$dlself"; then
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  self)
+	    if test dlprefiles = "$prev"; then
+	      dlself=yes
+	    elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then
+	      dlself=yes
+	    else
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  *)
+	    if test dlfiles = "$prev"; then
+	      func_append dlfiles " $arg"
+	    else
+	      func_append dlprefiles " $arg"
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  esac
+	  ;;
+	expsyms)
+	  export_symbols=$arg
+	  test -f "$arg" \
+	    || func_fatal_error "symbol file '$arg' does not exist"
+	  prev=
+	  continue
+	  ;;
+	expsyms_regex)
+	  export_symbols_regex=$arg
+	  prev=
+	  continue
+	  ;;
+	framework)
+	  case $host in
+	    *-*-darwin*)
+	      case "$deplibs " in
+		*" $qarg.ltframework "*) ;;
+		*) func_append deplibs " $qarg.ltframework" # this is fixed later
+		   ;;
+	      esac
+	      ;;
+	  esac
+	  prev=
+	  continue
+	  ;;
+	inst_prefix)
+	  inst_prefix_dir=$arg
+	  prev=
+	  continue
+	  ;;
+	mllvm)
+	  # Clang does not use LLVM to link, so we can simply discard any
+	  # '-mllvm $arg' options when doing the link step.
+	  prev=
+	  continue
+	  ;;
+	objectlist)
+	  if test -f "$arg"; then
+	    save_arg=$arg
+	    moreargs=
+	    for fil in `cat "$save_arg"`
+	    do
+#	      func_append moreargs " $fil"
+	      arg=$fil
+	      # A libtool-controlled object.
+
+	      # Check to see that this really is a libtool object.
+	      if func_lalib_unsafe_p "$arg"; then
+		pic_object=
+		non_pic_object=
+
+		# Read the .lo file
+		func_source "$arg"
+
+		if test -z "$pic_object" ||
+		   test -z "$non_pic_object" ||
+		   test none = "$pic_object" &&
+		   test none = "$non_pic_object"; then
+		  func_fatal_error "cannot find name of object for '$arg'"
+		fi
+
+		# Extract subdirectory from the argument.
+		func_dirname "$arg" "/" ""
+		xdir=$func_dirname_result
+
+		if test none != "$pic_object"; then
+		  # Prepend the subdirectory the object is found in.
+		  pic_object=$xdir$pic_object
+
+		  if test dlfiles = "$prev"; then
+		    if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
+		      func_append dlfiles " $pic_object"
+		      prev=
+		      continue
+		    else
+		      # If libtool objects are unsupported, then we need to preload.
+		      prev=dlprefiles
+		    fi
+		  fi
+
+		  # CHECK ME:  I think I busted this.  -Ossama
+		  if test dlprefiles = "$prev"; then
+		    # Preload the old-style object.
+		    func_append dlprefiles " $pic_object"
+		    prev=
+		  fi
+
+		  # A PIC object.
+		  func_append libobjs " $pic_object"
+		  arg=$pic_object
+		fi
+
+		# Non-PIC object.
+		if test none != "$non_pic_object"; then
+		  # Prepend the subdirectory the object is found in.
+		  non_pic_object=$xdir$non_pic_object
+
+		  # A standard non-PIC object
+		  func_append non_pic_objects " $non_pic_object"
+		  if test -z "$pic_object" || test none = "$pic_object"; then
+		    arg=$non_pic_object
+		  fi
+		else
+		  # If the PIC object exists, use it instead.
+		  # $xdir was prepended to $pic_object above.
+		  non_pic_object=$pic_object
+		  func_append non_pic_objects " $non_pic_object"
+		fi
+	      else
+		# Only an error if not doing a dry-run.
+		if $opt_dry_run; then
+		  # Extract subdirectory from the argument.
+		  func_dirname "$arg" "/" ""
+		  xdir=$func_dirname_result
+
+		  func_lo2o "$arg"
+		  pic_object=$xdir$objdir/$func_lo2o_result
+		  non_pic_object=$xdir$func_lo2o_result
+		  func_append libobjs " $pic_object"
+		  func_append non_pic_objects " $non_pic_object"
+	        else
+		  func_fatal_error "'$arg' is not a valid libtool object"
+		fi
+	      fi
+	    done
+	  else
+	    func_fatal_error "link input file '$arg' does not exist"
+	  fi
+	  arg=$save_arg
+	  prev=
+	  continue
+	  ;;
+	os2dllname)
+	  os2dllname=$arg
+	  prev=
+	  continue
+	  ;;
+	precious_regex)
+	  precious_files_regex=$arg
+	  prev=
+	  continue
+	  ;;
+	release)
+	  release=-$arg
+	  prev=
+	  continue
+	  ;;
+	rpath | xrpath)
+	  # We need an absolute path.
+	  case $arg in
+	  [\\/]* | [A-Za-z]:[\\/]*) ;;
+	  *)
+	    func_fatal_error "only absolute run-paths are allowed"
+	    ;;
+	  esac
+	  if test rpath = "$prev"; then
+	    case "$rpath " in
+	    *" $arg "*) ;;
+	    *) func_append rpath " $arg" ;;
+	    esac
+	  else
+	    case "$xrpath " in
+	    *" $arg "*) ;;
+	    *) func_append xrpath " $arg" ;;
+	    esac
+	  fi
+	  prev=
+	  continue
+	  ;;
+	shrext)
+	  shrext_cmds=$arg
+	  prev=
+	  continue
+	  ;;
+	weak)
+	  func_append weak_libs " $arg"
+	  prev=
+	  continue
+	  ;;
+	xcclinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xcompiler)
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xlinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $wl$qarg"
+	  prev=
+	  func_append compile_command " $wl$qarg"
+	  func_append finalize_command " $wl$qarg"
+	  continue
+	  ;;
+	*)
+	  eval "$prev=\"\$arg\""
+	  prev=
+	  continue
+	  ;;
+	esac
+      fi # test -n "$prev"
+
+      prevarg=$arg
+
+      case $arg in
+      -all-static)
+	if test -n "$link_static_flag"; then
+	  # See comment for -static flag below, for more details.
+	  func_append compile_command " $link_static_flag"
+	  func_append finalize_command " $link_static_flag"
+	fi
+	continue
+	;;
+
+      -allow-undefined)
+	# FIXME: remove this flag sometime in the future.
+	func_fatal_error "'-allow-undefined' must not be used because it is the default"
+	;;
+
+      -avoid-version)
+	avoid_version=yes
+	continue
+	;;
+
+      -bindir)
+	prev=bindir
+	continue
+	;;
+
+      -dlopen)
+	prev=dlfiles
+	continue
+	;;
+
+      -dlpreopen)
+	prev=dlprefiles
+	continue
+	;;
+
+      -export-dynamic)
+	export_dynamic=yes
+	continue
+	;;
+
+      -export-symbols | -export-symbols-regex)
+	if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
+	  func_fatal_error "more than one -exported-symbols argument is not allowed"
+	fi
+	if test X-export-symbols = "X$arg"; then
+	  prev=expsyms
+	else
+	  prev=expsyms_regex
+	fi
+	continue
+	;;
+
+      -framework)
+	prev=framework
+	continue
+	;;
+
+      -inst-prefix-dir)
+	prev=inst_prefix
+	continue
+	;;
+
+      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
+      # so, if we see these flags be careful not to treat them like -L
+      -L[A-Z][A-Z]*:*)
+	case $with_gcc/$host in
+	no/*-*-irix* | /*-*-irix*)
+	  func_append compile_command " $arg"
+	  func_append finalize_command " $arg"
+	  ;;
+	esac
+	continue
+	;;
+
+      -L*)
+	func_stripname "-L" '' "$arg"
+	if test -z "$func_stripname_result"; then
+	  if test "$#" -gt 0; then
+	    func_fatal_error "require no space between '-L' and '$1'"
+	  else
+	    func_fatal_error "need path for '-L' option"
+	  fi
+	fi
+	func_resolve_sysroot "$func_stripname_result"
+	dir=$func_resolve_sysroot_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	*)
+	  absdir=`cd "$dir" && pwd`
+	  test -z "$absdir" && \
+	    func_fatal_error "cannot determine absolute directory name of '$dir'"
+	  dir=$absdir
+	  ;;
+	esac
+	case "$deplibs " in
+	*" -L$dir "* | *" $arg "*)
+	  # Will only happen for absolute or sysroot arguments
+	  ;;
+	*)
+	  # Preserve sysroot, but never include relative directories
+	  case $dir in
+	    [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
+	    *) func_append deplibs " -L$dir" ;;
+	  esac
+	  func_append lib_search_path " $dir"
+	  ;;
+	esac
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$dir:"*) ;;
+	  ::) dllsearchpath=$dir;;
+	  *) func_append dllsearchpath ":$dir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+	continue
+	;;
+
+      -l*)
+	if test X-lc = "X$arg" || test X-lm = "X$arg"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # These systems don't actually have a C or math library (as such)
+	    continue
+	    ;;
+	  *-*-os2*)
+	    # These systems don't actually have a C library (as such)
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
+	    # Do not include libc due to us having libc/libc_r.
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C and math libraries are in the System framework
+	    func_append deplibs " System.ltframework"
+	    continue
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  esac
+	elif test X-lc_r = "X$arg"; then
+	 case $host in
+	 *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
+	   # Do not include libc_r directly, use -pthread flag.
+	   continue
+	   ;;
+	 esac
+	fi
+	func_append deplibs " $arg"
+	continue
+	;;
+
+      -mllvm)
+	prev=mllvm
+	continue
+	;;
+
+      -module)
+	module=yes
+	continue
+	;;
+
+      # Tru64 UNIX uses -model [arg] to determine the layout of C++
+      # classes, name mangling, and exception handling.
+      # Darwin uses the -arch flag to determine output architecture.
+      -model|-arch|-isysroot|--sysroot)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	prev=xcompiler
+	continue
+	;;
+
+      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+      |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	case "$new_inherited_linker_flags " in
+	    *" $arg "*) ;;
+	    * ) func_append new_inherited_linker_flags " $arg" ;;
+	esac
+	continue
+	;;
+
+      -multi_module)
+	single_module=$wl-multi_module
+	continue
+	;;
+
+      -no-fast-install)
+	fast_install=no
+	continue
+	;;
+
+      -no-install)
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
+	  # The PATH hackery in wrapper scripts is required on Windows
+	  # and Darwin in order for the loader to find any dlls it needs.
+	  func_warning "'-no-install' is ignored for $host"
+	  func_warning "assuming '-no-fast-install' instead"
+	  fast_install=no
+	  ;;
+	*) no_install=yes ;;
+	esac
+	continue
+	;;
+
+      -no-undefined)
+	allow_undefined=no
+	continue
+	;;
+
+      -objectlist)
+	prev=objectlist
+	continue
+	;;
+
+      -os2dllname)
+	prev=os2dllname
+	continue
+	;;
+
+      -o) prev=output ;;
+
+      -precious-files-regex)
+	prev=precious_regex
+	continue
+	;;
+
+      -release)
+	prev=release
+	continue
+	;;
+
+      -rpath)
+	prev=rpath
+	continue
+	;;
+
+      -R)
+	prev=xrpath
+	continue
+	;;
+
+      -R*)
+	func_stripname '-R' '' "$arg"
+	dir=$func_stripname_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	=*)
+	  func_stripname '=' '' "$dir"
+	  dir=$lt_sysroot$func_stripname_result
+	  ;;
+	*)
+	  func_fatal_error "only absolute run-paths are allowed"
+	  ;;
+	esac
+	case "$xrpath " in
+	*" $dir "*) ;;
+	*) func_append xrpath " $dir" ;;
+	esac
+	continue
+	;;
+
+      -shared)
+	# The effects of -shared are defined in a previous loop.
+	continue
+	;;
+
+      -shrext)
+	prev=shrext
+	continue
+	;;
+
+      -static | -static-libtool-libs)
+	# The effects of -static are defined in a previous loop.
+	# We used to do the same as -all-static on platforms that
+	# didn't have a PIC flag, but the assumption that the effects
+	# would be equivalent was wrong.  It would break on at least
+	# Digital Unix and AIX.
+	continue
+	;;
+
+      -thread-safe)
+	thread_safe=yes
+	continue
+	;;
+
+      -version-info)
+	prev=vinfo
+	continue
+	;;
+
+      -version-number)
+	prev=vinfo
+	vinfo_number=yes
+	continue
+	;;
+
+      -weak)
+        prev=weak
+	continue
+	;;
+
+      -Wc,*)
+	func_stripname '-Wc,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs=$IFS; IFS=,
+	for flag in $args; do
+	  IFS=$save_ifs
+          func_quote_for_eval "$flag"
+	  func_append arg " $func_quote_for_eval_result"
+	  func_append compiler_flags " $func_quote_for_eval_result"
+	done
+	IFS=$save_ifs
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Wl,*)
+	func_stripname '-Wl,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs=$IFS; IFS=,
+	for flag in $args; do
+	  IFS=$save_ifs
+          func_quote_for_eval "$flag"
+	  func_append arg " $wl$func_quote_for_eval_result"
+	  func_append compiler_flags " $wl$func_quote_for_eval_result"
+	  func_append linker_flags " $func_quote_for_eval_result"
+	done
+	IFS=$save_ifs
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Xcompiler)
+	prev=xcompiler
+	continue
+	;;
+
+      -Xlinker)
+	prev=xlinker
+	continue
+	;;
+
+      -XCClinker)
+	prev=xcclinker
+	continue
+	;;
+
+      # -msg_* for osf cc
+      -msg_*)
+	func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+
+      # Flags to be passed through unchanged, with rationale:
+      # -64, -mips[0-9]      enable 64-bit mode for the SGI compiler
+      # -r[0-9][0-9]*        specify processor for the SGI compiler
+      # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
+      # +DA*, +DD*           enable 64-bit mode for the HP compiler
+      # -q*                  compiler args for the IBM compiler
+      # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
+      # -F/path              path to uninstalled frameworks, gcc on darwin
+      # -p, -pg, --coverage, -fprofile-*  profiling flags for GCC
+      # -fstack-protector*   stack protector flags for GCC
+      # @file                GCC response files
+      # -tp=*                Portland pgcc target processor selection
+      # --sysroot=*          for sysroot support
+      # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+      # -specs=*             GCC specs files
+      # -stdlib=*            select c++ std lib with clang
+      # -fsanitize=*         Clang/GCC memory and address sanitizer
+      # -fuse-ld=*           Linker select flags for GCC
+      # -static-*            direct GCC to link specific libraries statically
+      # -fcilkplus           Cilk Plus language extension features for C/C++
+      -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+      -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+      -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \
+      -specs=*|-fsanitize=*|-fuse-ld=*|-static-*|-fcilkplus)
+        func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+        func_append compile_command " $arg"
+        func_append finalize_command " $arg"
+        func_append compiler_flags " $arg"
+        continue
+        ;;
+
+      -Z*)
+        if test os2 = "`expr $host : '.*\(os2\)'`"; then
+          # OS/2 uses -Zxxx to specify OS/2-specific options
+	  compiler_flags="$compiler_flags $arg"
+	  func_append compile_command " $arg"
+	  func_append finalize_command " $arg"
+	  case $arg in
+	  -Zlinker | -Zstack)
+	    prev=xcompiler
+	    ;;
+	  esac
+	  continue
+        else
+	  # Otherwise treat like 'Some other compiler flag' below
+	  func_quote_for_eval "$arg"
+	  arg=$func_quote_for_eval_result
+        fi
+	;;
+
+      # Some other compiler flag.
+      -* | +*)
+        func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+
+      *.$objext)
+	# A standard object.
+	func_append objs " $arg"
+	;;
+
+      *.lo)
+	# A libtool-controlled object.
+
+	# Check to see that this really is a libtool object.
+	if func_lalib_unsafe_p "$arg"; then
+	  pic_object=
+	  non_pic_object=
+
+	  # Read the .lo file
+	  func_source "$arg"
+
+	  if test -z "$pic_object" ||
+	     test -z "$non_pic_object" ||
+	     test none = "$pic_object" &&
+	     test none = "$non_pic_object"; then
+	    func_fatal_error "cannot find name of object for '$arg'"
+	  fi
+
+	  # Extract subdirectory from the argument.
+	  func_dirname "$arg" "/" ""
+	  xdir=$func_dirname_result
+
+	  test none = "$pic_object" || {
+	    # Prepend the subdirectory the object is found in.
+	    pic_object=$xdir$pic_object
+
+	    if test dlfiles = "$prev"; then
+	      if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
+		func_append dlfiles " $pic_object"
+		prev=
+		continue
+	      else
+		# If libtool objects are unsupported, then we need to preload.
+		prev=dlprefiles
+	      fi
+	    fi
+
+	    # CHECK ME:  I think I busted this.  -Ossama
+	    if test dlprefiles = "$prev"; then
+	      # Preload the old-style object.
+	      func_append dlprefiles " $pic_object"
+	      prev=
+	    fi
+
+	    # A PIC object.
+	    func_append libobjs " $pic_object"
+	    arg=$pic_object
+	  }
+
+	  # Non-PIC object.
+	  if test none != "$non_pic_object"; then
+	    # Prepend the subdirectory the object is found in.
+	    non_pic_object=$xdir$non_pic_object
+
+	    # A standard non-PIC object
+	    func_append non_pic_objects " $non_pic_object"
+	    if test -z "$pic_object" || test none = "$pic_object"; then
+	      arg=$non_pic_object
+	    fi
+	  else
+	    # If the PIC object exists, use it instead.
+	    # $xdir was prepended to $pic_object above.
+	    non_pic_object=$pic_object
+	    func_append non_pic_objects " $non_pic_object"
+	  fi
+	else
+	  # Only an error if not doing a dry-run.
+	  if $opt_dry_run; then
+	    # Extract subdirectory from the argument.
+	    func_dirname "$arg" "/" ""
+	    xdir=$func_dirname_result
+
+	    func_lo2o "$arg"
+	    pic_object=$xdir$objdir/$func_lo2o_result
+	    non_pic_object=$xdir$func_lo2o_result
+	    func_append libobjs " $pic_object"
+	    func_append non_pic_objects " $non_pic_object"
+	  else
+	    func_fatal_error "'$arg' is not a valid libtool object"
+	  fi
+	fi
+	;;
+
+      *.$libext)
+	# An archive.
+	func_append deplibs " $arg"
+	func_append old_deplibs " $arg"
+	continue
+	;;
+
+      *.la)
+	# A libtool-controlled library.
+
+	func_resolve_sysroot "$arg"
+	if test dlfiles = "$prev"; then
+	  # This library was specified with -dlopen.
+	  func_append dlfiles " $func_resolve_sysroot_result"
+	  prev=
+	elif test dlprefiles = "$prev"; then
+	  # The library was specified with -dlpreopen.
+	  func_append dlprefiles " $func_resolve_sysroot_result"
+	  prev=
+	else
+	  func_append deplibs " $func_resolve_sysroot_result"
+	fi
+	continue
+	;;
+
+      # Some other compiler argument.
+      *)
+	# Unknown arguments in both finalize_command and compile_command need
+	# to be aesthetically quoted because they are evaled later.
+	func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+      esac # arg
+
+      # Now actually substitute the argument into the commands.
+      if test -n "$arg"; then
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+      fi
+    done # argument parsing loop
+
+    test -n "$prev" && \
+      func_fatal_help "the '$prevarg' option requires an argument"
+
+    if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then
+      eval arg=\"$export_dynamic_flag_spec\"
+      func_append compile_command " $arg"
+      func_append finalize_command " $arg"
+    fi
+
+    oldlibs=
+    # calculate the name of the file, without its directory
+    func_basename "$output"
+    outputname=$func_basename_result
+    libobjs_save=$libobjs
+
+    if test -n "$shlibpath_var"; then
+      # get the directories listed in $shlibpath_var
+      eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\`
+    else
+      shlib_search_path=
+    fi
+    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
+    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
+
+    # Definition is injected by LT_CONFIG during libtool generation.
+    func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH"
+
+    func_dirname "$output" "/" ""
+    output_objdir=$func_dirname_result$objdir
+    func_to_tool_file "$output_objdir/"
+    tool_output_objdir=$func_to_tool_file_result
+    # Create the object directory.
+    func_mkdir_p "$output_objdir"
+
+    # Determine the type of output
+    case $output in
+    "")
+      func_fatal_help "you must specify an output file"
+      ;;
+    *.$libext) linkmode=oldlib ;;
+    *.lo | *.$objext) linkmode=obj ;;
+    *.la) linkmode=lib ;;
+    *) linkmode=prog ;; # Anything else should be a program.
+    esac
+
+    specialdeplibs=
+
+    libs=
+    # Find all interdependent deplibs by searching for libraries
+    # that are linked more than once (e.g. -la -lb -la)
+    for deplib in $deplibs; do
+      if $opt_preserve_dup_deps; then
+	case "$libs " in
+	*" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	esac
+      fi
+      func_append libs " $deplib"
+    done
+
+    if test lib = "$linkmode"; then
+      libs="$predeps $libs $compiler_lib_search_path $postdeps"
+
+      # Compute libraries that are listed more than once in $predeps
+      # $postdeps and mark them as special (i.e., whose duplicates are
+      # not to be eliminated).
+      pre_post_deps=
+      if $opt_duplicate_compiler_generated_deps; then
+	for pre_post_dep in $predeps $postdeps; do
+	  case "$pre_post_deps " in
+	  *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
+	  esac
+	  func_append pre_post_deps " $pre_post_dep"
+	done
+      fi
+      pre_post_deps=
+    fi
+
+    deplibs=
+    newdependency_libs=
+    newlib_search_path=
+    need_relink=no # whether we're linking any uninstalled libtool libraries
+    notinst_deplibs= # not-installed libtool libraries
+    notinst_path= # paths that contain not-installed libtool libraries
+
+    case $linkmode in
+    lib)
+	passes="conv dlpreopen link"
+	for file in $dlfiles $dlprefiles; do
+	  case $file in
+	  *.la) ;;
+	  *)
+	    func_fatal_help "libraries can '-dlopen' only libtool libraries: $file"
+	    ;;
+	  esac
+	done
+	;;
+    prog)
+	compile_deplibs=
+	finalize_deplibs=
+	alldeplibs=false
+	newdlfiles=
+	newdlprefiles=
+	passes="conv scan dlopen dlpreopen link"
+	;;
+    *)  passes="conv"
+	;;
+    esac
+
+    for pass in $passes; do
+      # The preopen pass in lib mode reverses $deplibs; put it back here
+      # so that -L comes before libs that need it for instance...
+      if test lib,link = "$linkmode,$pass"; then
+	## FIXME: Find the place where the list is rebuilt in the wrong
+	##        order, and fix it there properly
+        tmp_deplibs=
+	for deplib in $deplibs; do
+	  tmp_deplibs="$deplib $tmp_deplibs"
+	done
+	deplibs=$tmp_deplibs
+      fi
+
+      if test lib,link = "$linkmode,$pass" ||
+	 test prog,scan = "$linkmode,$pass"; then
+	libs=$deplibs
+	deplibs=
+      fi
+      if test prog = "$linkmode"; then
+	case $pass in
+	dlopen) libs=$dlfiles ;;
+	dlpreopen) libs=$dlprefiles ;;
+	link)
+	  libs="$deplibs %DEPLIBS%"
+	  test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
+	  ;;
+	esac
+      fi
+      if test lib,dlpreopen = "$linkmode,$pass"; then
+	# Collect and forward deplibs of preopened libtool libs
+	for lib in $dlprefiles; do
+	  # Ignore non-libtool-libs
+	  dependency_libs=
+	  func_resolve_sysroot "$lib"
+	  case $lib in
+	  *.la)	func_source "$func_resolve_sysroot_result" ;;
+	  esac
+
+	  # Collect preopened libtool deplibs, except any this library
+	  # has declared as weak libs
+	  for deplib in $dependency_libs; do
+	    func_basename "$deplib"
+            deplib_base=$func_basename_result
+	    case " $weak_libs " in
+	    *" $deplib_base "*) ;;
+	    *) func_append deplibs " $deplib" ;;
+	    esac
+	  done
+	done
+	libs=$dlprefiles
+      fi
+      if test dlopen = "$pass"; then
+	# Collect dlpreopened libraries
+	save_deplibs=$deplibs
+	deplibs=
+      fi
+
+      for deplib in $libs; do
+	lib=
+	found=false
+	case $deplib in
+	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+        |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+	  if test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    func_append compiler_flags " $deplib"
+	    if test lib = "$linkmode"; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-l*)
+	  if test lib != "$linkmode" && test prog != "$linkmode"; then
+	    func_warning "'-l' is ignored for archives/objects"
+	    continue
+	  fi
+	  func_stripname '-l' '' "$deplib"
+	  name=$func_stripname_result
+	  if test lib = "$linkmode"; then
+	    searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
+	  else
+	    searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
+	  fi
+	  for searchdir in $searchdirs; do
+	    for search_ext in .la $std_shrext .so .a; do
+	      # Search the libtool library
+	      lib=$searchdir/lib$name$search_ext
+	      if test -f "$lib"; then
+		if test .la = "$search_ext"; then
+		  found=:
+		else
+		  found=false
+		fi
+		break 2
+	      fi
+	    done
+	  done
+	  if $found; then
+	    # deplib is a libtool library
+	    # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
+	    # We need to do some special things here, and not later.
+	    if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+	      case " $predeps $postdeps " in
+	      *" $deplib "*)
+		if func_lalib_p "$lib"; then
+		  library_names=
+		  old_library=
+		  func_source "$lib"
+		  for l in $old_library $library_names; do
+		    ll=$l
+		  done
+		  if test "X$ll" = "X$old_library"; then # only static version available
+		    found=false
+		    func_dirname "$lib" "" "."
+		    ladir=$func_dirname_result
+		    lib=$ladir/$old_library
+		    if test prog,link = "$linkmode,$pass"; then
+		      compile_deplibs="$deplib $compile_deplibs"
+		      finalize_deplibs="$deplib $finalize_deplibs"
+		    else
+		      deplibs="$deplib $deplibs"
+		      test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+		    fi
+		    continue
+		  fi
+		fi
+		;;
+	      *) ;;
+	      esac
+	    fi
+	  else
+	    # deplib doesn't seem to be a libtool library
+	    if test prog,link = "$linkmode,$pass"; then
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      deplibs="$deplib $deplibs"
+	      test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    continue
+	  fi
+	  ;; # -l
+	*.ltframework)
+	  if test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    deplibs="$deplib $deplibs"
+	    if test lib = "$linkmode"; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-L*)
+	  case $linkmode in
+	  lib)
+	    deplibs="$deplib $deplibs"
+	    test conv = "$pass" && continue
+	    newdependency_libs="$deplib $newdependency_libs"
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  prog)
+	    if test conv = "$pass"; then
+	      deplibs="$deplib $deplibs"
+	      continue
+	    fi
+	    if test scan = "$pass"; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  *)
+	    func_warning "'-L' is ignored for archives/objects"
+	    ;;
+	  esac # linkmode
+	  continue
+	  ;; # -L
+	-R*)
+	  if test link = "$pass"; then
+	    func_stripname '-R' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    dir=$func_resolve_sysroot_result
+	    # Make sure the xrpath contains only unique directories.
+	    case "$xrpath " in
+	    *" $dir "*) ;;
+	    *) func_append xrpath " $dir" ;;
+	    esac
+	  fi
+	  deplibs="$deplib $deplibs"
+	  continue
+	  ;;
+	*.la)
+	  func_resolve_sysroot "$deplib"
+	  lib=$func_resolve_sysroot_result
+	  ;;
+	*.$libext)
+	  if test conv = "$pass"; then
+	    deplibs="$deplib $deplibs"
+	    continue
+	  fi
+	  case $linkmode in
+	  lib)
+	    # Linking convenience modules into shared libraries is allowed,
+	    # but linking other static libraries is non-portable.
+	    case " $dlpreconveniencelibs " in
+	    *" $deplib "*) ;;
+	    *)
+	      valid_a_lib=false
+	      case $deplibs_check_method in
+		match_pattern*)
+		  set dummy $deplibs_check_method; shift
+		  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+		  if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
+		    | $EGREP "$match_pattern_regex" > /dev/null; then
+		    valid_a_lib=:
+		  fi
+		;;
+		pass_all)
+		  valid_a_lib=:
+		;;
+	      esac
+	      if $valid_a_lib; then
+		echo
+		$ECHO "*** Warning: Linking the shared library $output against the"
+		$ECHO "*** static library $deplib is not portable!"
+		deplibs="$deplib $deplibs"
+	      else
+		echo
+		$ECHO "*** Warning: Trying to link with static lib archive $deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because the file extensions .$libext of this argument makes me believe"
+		echo "*** that it is just a static archive that I should not use here."
+	      fi
+	      ;;
+	    esac
+	    continue
+	    ;;
+	  prog)
+	    if test link != "$pass"; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    continue
+	    ;;
+	  esac # linkmode
+	  ;; # *.$libext
+	*.lo | *.$objext)
+	  if test conv = "$pass"; then
+	    deplibs="$deplib $deplibs"
+	  elif test prog = "$linkmode"; then
+	    if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then
+	      # If there is no dlopen support or we're linking statically,
+	      # we need to preload.
+	      func_append newdlprefiles " $deplib"
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      func_append newdlfiles " $deplib"
+	    fi
+	  fi
+	  continue
+	  ;;
+	%DEPLIBS%)
+	  alldeplibs=:
+	  continue
+	  ;;
+	esac # case $deplib
+
+	$found || test -f "$lib" \
+	  || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'"
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$lib" \
+	  || func_fatal_error "'$lib' is not a valid libtool archive"
+
+	func_dirname "$lib" "" "."
+	ladir=$func_dirname_result
+
+	dlname=
+	dlopen=
+	dlpreopen=
+	libdir=
+	library_names=
+	old_library=
+	inherited_linker_flags=
+	# If the library was installed with an old release of libtool,
+	# it will not redefine variables installed, or shouldnotlink
+	installed=yes
+	shouldnotlink=no
+	avoidtemprpath=
+
+
+	# Read the .la file
+	func_source "$lib"
+
+	# Convert "-framework foo" to "foo.ltframework"
+	if test -n "$inherited_linker_flags"; then
+	  tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
+	  for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
+	    case " $new_inherited_linker_flags " in
+	      *" $tmp_inherited_linker_flag "*) ;;
+	      *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
+	    esac
+	  done
+	fi
+	dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	if test lib,link = "$linkmode,$pass" ||
+	   test prog,scan = "$linkmode,$pass" ||
+	   { test prog != "$linkmode" && test lib != "$linkmode"; }; then
+	  test -n "$dlopen" && func_append dlfiles " $dlopen"
+	  test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
+	fi
+
+	if test conv = "$pass"; then
+	  # Only check for convenience libraries
+	  deplibs="$lib $deplibs"
+	  if test -z "$libdir"; then
+	    if test -z "$old_library"; then
+	      func_fatal_error "cannot find name of link library for '$lib'"
+	    fi
+	    # It is a libtool convenience library, so add in its objects.
+	    func_append convenience " $ladir/$objdir/$old_library"
+	    func_append old_convenience " $ladir/$objdir/$old_library"
+	    tmp_libs=
+	    for deplib in $dependency_libs; do
+	      deplibs="$deplib $deplibs"
+	      if $opt_preserve_dup_deps; then
+		case "$tmp_libs " in
+		*" $deplib "*) func_append specialdeplibs " $deplib" ;;
+		esac
+	      fi
+	      func_append tmp_libs " $deplib"
+	    done
+	  elif test prog != "$linkmode" && test lib != "$linkmode"; then
+	    func_fatal_error "'$lib' is not a convenience library"
+	  fi
+	  continue
+	fi # $pass = conv
+
+
+	# Get the name of the library we link against.
+	linklib=
+	if test -n "$old_library" &&
+	   { test yes = "$prefer_static_libs" ||
+	     test built,no = "$prefer_static_libs,$installed"; }; then
+	  linklib=$old_library
+	else
+	  for l in $old_library $library_names; do
+	    linklib=$l
+	  done
+	fi
+	if test -z "$linklib"; then
+	  func_fatal_error "cannot find name of link library for '$lib'"
+	fi
+
+	# This library was specified with -dlopen.
+	if test dlopen = "$pass"; then
+	  test -z "$libdir" \
+	    && func_fatal_error "cannot -dlopen a convenience library: '$lib'"
+	  if test -z "$dlname" ||
+	     test yes != "$dlopen_support" ||
+	     test no = "$build_libtool_libs"
+	  then
+	    # If there is no dlname, no dlopen support or we're linking
+	    # statically, we need to preload.  We also need to preload any
+	    # dependent libraries so libltdl's deplib preloader doesn't
+	    # bomb out in the load deplibs phase.
+	    func_append dlprefiles " $lib $dependency_libs"
+	  else
+	    func_append newdlfiles " $lib"
+	  fi
+	  continue
+	fi # $pass = dlopen
+
+	# We need an absolute path.
+	case $ladir in
+	[\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;;
+	*)
+	  abs_ladir=`cd "$ladir" && pwd`
+	  if test -z "$abs_ladir"; then
+	    func_warning "cannot determine absolute directory name of '$ladir'"
+	    func_warning "passing it literally to the linker, although it might fail"
+	    abs_ladir=$ladir
+	  fi
+	  ;;
+	esac
+	func_basename "$lib"
+	laname=$func_basename_result
+
+	# Find the relevant object directory and library name.
+	if test yes = "$installed"; then
+	  if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    func_warning "library '$lib' was moved."
+	    dir=$ladir
+	    absdir=$abs_ladir
+	    libdir=$abs_ladir
+	  else
+	    dir=$lt_sysroot$libdir
+	    absdir=$lt_sysroot$libdir
+	  fi
+	  test yes = "$hardcode_automatic" && avoidtemprpath=yes
+	else
+	  if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    dir=$ladir
+	    absdir=$abs_ladir
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  else
+	    dir=$ladir/$objdir
+	    absdir=$abs_ladir/$objdir
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  fi
+	fi # $installed = yes
+	func_stripname 'lib' '.la' "$laname"
+	name=$func_stripname_result
+
+	# This library was specified with -dlpreopen.
+	if test dlpreopen = "$pass"; then
+	  if test -z "$libdir" && test prog = "$linkmode"; then
+	    func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'"
+	  fi
+	  case $host in
+	    # special handling for platforms with PE-DLLs.
+	    *cygwin* | *mingw* | *cegcc* )
+	      # Linker will automatically link against shared library if both
+	      # static and shared are present.  Therefore, ensure we extract
+	      # symbols from the import library if a shared library is present
+	      # (otherwise, the dlopen module name will be incorrect).  We do
+	      # this by putting the import library name into $newdlprefiles.
+	      # We recover the dlopen module name by 'saving' the la file
+	      # name in a special purpose variable, and (later) extracting the
+	      # dlname from the la file.
+	      if test -n "$dlname"; then
+	        func_tr_sh "$dir/$linklib"
+	        eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
+	        func_append newdlprefiles " $dir/$linklib"
+	      else
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      fi
+	    ;;
+	    * )
+	      # Prefer using a static library (so that no silly _DYNAMIC symbols
+	      # are required to link).
+	      if test -n "$old_library"; then
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      # Otherwise, use the dlname, so that lt_dlopen finds it.
+	      elif test -n "$dlname"; then
+	        func_append newdlprefiles " $dir/$dlname"
+	      else
+	        func_append newdlprefiles " $dir/$linklib"
+	      fi
+	    ;;
+	  esac
+	fi # $pass = dlpreopen
+
+	if test -z "$libdir"; then
+	  # Link the convenience library
+	  if test lib = "$linkmode"; then
+	    deplibs="$dir/$old_library $deplibs"
+	  elif test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$dir/$old_library $compile_deplibs"
+	    finalize_deplibs="$dir/$old_library $finalize_deplibs"
+	  else
+	    deplibs="$lib $deplibs" # used for prog,scan pass
+	  fi
+	  continue
+	fi
+
+
+	if test prog = "$linkmode" && test link != "$pass"; then
+	  func_append newlib_search_path " $ladir"
+	  deplibs="$lib $deplibs"
+
+	  linkalldeplibs=false
+	  if test no != "$link_all_deplibs" || test -z "$library_names" ||
+	     test no = "$build_libtool_libs"; then
+	    linkalldeplibs=:
+	  fi
+
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    case $deplib in
+	    -L*) func_stripname '-L' '' "$deplib"
+	         func_resolve_sysroot "$func_stripname_result"
+	         func_append newlib_search_path " $func_resolve_sysroot_result"
+		 ;;
+	    esac
+	    # Need to link against all dependency_libs?
+	    if $linkalldeplibs; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      # Need to hardcode shared library paths
+	      # or/and link against static libraries
+	      newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    if $opt_preserve_dup_deps; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done # for deplib
+	  continue
+	fi # $linkmode = prog...
+
+	if test prog,link = "$linkmode,$pass"; then
+	  if test -n "$library_names" &&
+	     { { test no = "$prefer_static_libs" ||
+	         test built,yes = "$prefer_static_libs,$installed"; } ||
+	       test -z "$old_library"; }; then
+	    # We need to hardcode the library path
+	    if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then
+	      # Make sure the rpath contains only unique directories.
+	      case $temp_rpath: in
+	      *"$absdir:"*) ;;
+	      *) func_append temp_rpath "$absdir:" ;;
+	      esac
+	    fi
+
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi # $linkmode,$pass = prog,link...
+
+	  if $alldeplibs &&
+	     { test pass_all = "$deplibs_check_method" ||
+	       { test yes = "$build_libtool_libs" &&
+		 test -n "$library_names"; }; }; then
+	    # We only need to search for static libraries
+	    continue
+	  fi
+	fi
+
+	link_static=no # Whether the deplib will be linked statically
+	use_static_libs=$prefer_static_libs
+	if test built = "$use_static_libs" && test yes = "$installed"; then
+	  use_static_libs=no
+	fi
+	if test -n "$library_names" &&
+	   { test no = "$use_static_libs" || test -z "$old_library"; }; then
+	  case $host in
+	  *cygwin* | *mingw* | *cegcc* | *os2*)
+	      # No point in relinking DLLs because paths are not encoded
+	      func_append notinst_deplibs " $lib"
+	      need_relink=no
+	    ;;
+	  *)
+	    if test no = "$installed"; then
+	      func_append notinst_deplibs " $lib"
+	      need_relink=yes
+	    fi
+	    ;;
+	  esac
+	  # This is a shared library
+
+	  # Warn about portability, can't link against -module's on some
+	  # systems (darwin).  Don't bleat about dlopened modules though!
+	  dlopenmodule=
+	  for dlpremoduletest in $dlprefiles; do
+	    if test "X$dlpremoduletest" = "X$lib"; then
+	      dlopenmodule=$dlpremoduletest
+	      break
+	    fi
+	  done
+	  if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then
+	    echo
+	    if test prog = "$linkmode"; then
+	      $ECHO "*** Warning: Linking the executable $output against the loadable module"
+	    else
+	      $ECHO "*** Warning: Linking the shared library $output against the loadable module"
+	    fi
+	    $ECHO "*** $linklib is not portable!"
+	  fi
+	  if test lib = "$linkmode" &&
+	     test yes = "$hardcode_into_libs"; then
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi
+
+	  if test -n "$old_archive_from_expsyms_cmds"; then
+	    # figure out the soname
+	    set dummy $library_names
+	    shift
+	    realname=$1
+	    shift
+	    libname=`eval "\\$ECHO \"$libname_spec\""`
+	    # use dlname if we got it. it's perfectly good, no?
+	    if test -n "$dlname"; then
+	      soname=$dlname
+	    elif test -n "$soname_spec"; then
+	      # bleh windows
+	      case $host in
+	      *cygwin* | mingw* | *cegcc* | *os2*)
+	        func_arith $current - $age
+		major=$func_arith_result
+		versuffix=-$major
+		;;
+	      esac
+	      eval soname=\"$soname_spec\"
+	    else
+	      soname=$realname
+	    fi
+
+	    # Make a new name for the extract_expsyms_cmds to use
+	    soroot=$soname
+	    func_basename "$soroot"
+	    soname=$func_basename_result
+	    func_stripname 'lib' '.dll' "$soname"
+	    newlib=libimp-$func_stripname_result.a
+
+	    # If the library has no export list, then create one now
+	    if test -f "$output_objdir/$soname-def"; then :
+	    else
+	      func_verbose "extracting exported symbol list from '$soname'"
+	      func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
+	    fi
+
+	    # Create $newlib
+	    if test -f "$output_objdir/$newlib"; then :; else
+	      func_verbose "generating import library for '$soname'"
+	      func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
+	    fi
+	    # make sure the library variables are pointing to the new library
+	    dir=$output_objdir
+	    linklib=$newlib
+	  fi # test -n "$old_archive_from_expsyms_cmds"
+
+	  if test prog = "$linkmode" || test relink != "$opt_mode"; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    lib_linked=yes
+	    case $hardcode_action in
+	    immediate | unsupported)
+	      if test no = "$hardcode_direct"; then
+		add=$dir/$linklib
+		case $host in
+		  *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;;
+		  *-*-sysv4*uw2*) add_dir=-L$dir ;;
+		  *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
+		    *-*-unixware7*) add_dir=-L$dir ;;
+		  *-*-darwin* )
+		    # if the lib is a (non-dlopened) module then we cannot
+		    # link against it, someone is ignoring the earlier warnings
+		    if /usr/bin/file -L $add 2> /dev/null |
+			 $GREP ": [^:]* bundle" >/dev/null; then
+		      if test "X$dlopenmodule" != "X$lib"; then
+			$ECHO "*** Warning: lib $linklib is a module, not a shared library"
+			if test -z "$old_library"; then
+			  echo
+			  echo "*** And there doesn't seem to be a static archive available"
+			  echo "*** The link will probably fail, sorry"
+			else
+			  add=$dir/$old_library
+			fi
+		      elif test -n "$old_library"; then
+			add=$dir/$old_library
+		      fi
+		    fi
+		esac
+	      elif test no = "$hardcode_minus_L"; then
+		case $host in
+		*-*-sunos*) add_shlibpath=$dir ;;
+		esac
+		add_dir=-L$dir
+		add=-l$name
+	      elif test no = "$hardcode_shlibpath_var"; then
+		add_shlibpath=$dir
+		add=-l$name
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    relink)
+	      if test yes = "$hardcode_direct" &&
+	         test no = "$hardcode_direct_absolute"; then
+		add=$dir/$linklib
+	      elif test yes = "$hardcode_minus_L"; then
+		add_dir=-L$absdir
+		# Try looking first in the location we're being installed to.
+		if test -n "$inst_prefix_dir"; then
+		  case $libdir in
+		    [\\/]*)
+		      func_append add_dir " -L$inst_prefix_dir$libdir"
+		      ;;
+		  esac
+		fi
+		add=-l$name
+	      elif test yes = "$hardcode_shlibpath_var"; then
+		add_shlibpath=$dir
+		add=-l$name
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    *) lib_linked=no ;;
+	    esac
+
+	    if test yes != "$lib_linked"; then
+	      func_fatal_configuration "unsupported hardcode properties"
+	    fi
+
+	    if test -n "$add_shlibpath"; then
+	      case :$compile_shlibpath: in
+	      *":$add_shlibpath:"*) ;;
+	      *) func_append compile_shlibpath "$add_shlibpath:" ;;
+	      esac
+	    fi
+	    if test prog = "$linkmode"; then
+	      test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
+	      test -n "$add" && compile_deplibs="$add $compile_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	      if test yes != "$hardcode_direct" &&
+		 test yes != "$hardcode_minus_L" &&
+		 test yes = "$hardcode_shlibpath_var"; then
+		case :$finalize_shlibpath: in
+		*":$libdir:"*) ;;
+		*) func_append finalize_shlibpath "$libdir:" ;;
+		esac
+	      fi
+	    fi
+	  fi
+
+	  if test prog = "$linkmode" || test relink = "$opt_mode"; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    # Finalize command for both is simple: just hardcode it.
+	    if test yes = "$hardcode_direct" &&
+	       test no = "$hardcode_direct_absolute"; then
+	      add=$libdir/$linklib
+	    elif test yes = "$hardcode_minus_L"; then
+	      add_dir=-L$libdir
+	      add=-l$name
+	    elif test yes = "$hardcode_shlibpath_var"; then
+	      case :$finalize_shlibpath: in
+	      *":$libdir:"*) ;;
+	      *) func_append finalize_shlibpath "$libdir:" ;;
+	      esac
+	      add=-l$name
+	    elif test yes = "$hardcode_automatic"; then
+	      if test -n "$inst_prefix_dir" &&
+		 test -f "$inst_prefix_dir$libdir/$linklib"; then
+		add=$inst_prefix_dir$libdir/$linklib
+	      else
+		add=$libdir/$linklib
+	      fi
+	    else
+	      # We cannot seem to hardcode it, guess we'll fake it.
+	      add_dir=-L$libdir
+	      # Try looking first in the location we're being installed to.
+	      if test -n "$inst_prefix_dir"; then
+		case $libdir in
+		  [\\/]*)
+		    func_append add_dir " -L$inst_prefix_dir$libdir"
+		    ;;
+		esac
+	      fi
+	      add=-l$name
+	    fi
+
+	    if test prog = "$linkmode"; then
+	      test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
+	      test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	    fi
+	  fi
+	elif test prog = "$linkmode"; then
+	  # Here we assume that one of hardcode_direct or hardcode_minus_L
+	  # is not unsupported.  This is valid on all known static and
+	  # shared platforms.
+	  if test unsupported != "$hardcode_direct"; then
+	    test -n "$old_library" && linklib=$old_library
+	    compile_deplibs="$dir/$linklib $compile_deplibs"
+	    finalize_deplibs="$dir/$linklib $finalize_deplibs"
+	  else
+	    compile_deplibs="-l$name -L$dir $compile_deplibs"
+	    finalize_deplibs="-l$name -L$dir $finalize_deplibs"
+	  fi
+	elif test yes = "$build_libtool_libs"; then
+	  # Not a shared library
+	  if test pass_all != "$deplibs_check_method"; then
+	    # We're trying link a shared library against a static one
+	    # but the system doesn't support it.
+
+	    # Just print a warning and add the library to dependency_libs so
+	    # that the program can be linked against the static library.
+	    echo
+	    $ECHO "*** Warning: This system cannot link to static lib archive $lib."
+	    echo "*** I have the capability to make that library automatically link in when"
+	    echo "*** you link to this library.  But I can only do this if you have a"
+	    echo "*** shared version of the library, which you do not appear to have."
+	    if test yes = "$module"; then
+	      echo "*** But as you try to build a module library, libtool will still create "
+	      echo "*** a static module, that should work as long as the dlopening application"
+	      echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
+	      if test -z "$global_symbol_pipe"; then
+		echo
+		echo "*** However, this would only work if libtool was able to extract symbol"
+		echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
+		echo "*** not find such a program.  So, this module is probably useless."
+		echo "*** 'nm' from GNU binutils and a full rebuild may help."
+	      fi
+	      if test no = "$build_old_libs"; then
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  else
+	    deplibs="$dir/$old_library $deplibs"
+	    link_static=yes
+	  fi
+	fi # link shared/static library?
+
+	if test lib = "$linkmode"; then
+	  if test -n "$dependency_libs" &&
+	     { test yes != "$hardcode_into_libs" ||
+	       test yes = "$build_old_libs" ||
+	       test yes = "$link_static"; }; then
+	    # Extract -R from dependency_libs
+	    temp_deplibs=
+	    for libdir in $dependency_libs; do
+	      case $libdir in
+	      -R*) func_stripname '-R' '' "$libdir"
+	           temp_xrpath=$func_stripname_result
+		   case " $xrpath " in
+		   *" $temp_xrpath "*) ;;
+		   *) func_append xrpath " $temp_xrpath";;
+		   esac;;
+	      *) func_append temp_deplibs " $libdir";;
+	      esac
+	    done
+	    dependency_libs=$temp_deplibs
+	  fi
+
+	  func_append newlib_search_path " $absdir"
+	  # Link against this library
+	  test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
+	  # ... and its dependency_libs
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    newdependency_libs="$deplib $newdependency_libs"
+	    case $deplib in
+              -L*) func_stripname '-L' '' "$deplib"
+                   func_resolve_sysroot "$func_stripname_result";;
+              *) func_resolve_sysroot "$deplib" ;;
+            esac
+	    if $opt_preserve_dup_deps; then
+	      case "$tmp_libs " in
+	      *" $func_resolve_sysroot_result "*)
+                func_append specialdeplibs " $func_resolve_sysroot_result" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $func_resolve_sysroot_result"
+	  done
+
+	  if test no != "$link_all_deplibs"; then
+	    # Add the search paths of all dependency libraries
+	    for deplib in $dependency_libs; do
+	      path=
+	      case $deplib in
+	      -L*) path=$deplib ;;
+	      *.la)
+	        func_resolve_sysroot "$deplib"
+	        deplib=$func_resolve_sysroot_result
+	        func_dirname "$deplib" "" "."
+		dir=$func_dirname_result
+		# We need an absolute path.
+		case $dir in
+		[\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;;
+		*)
+		  absdir=`cd "$dir" && pwd`
+		  if test -z "$absdir"; then
+		    func_warning "cannot determine absolute directory name of '$dir'"
+		    absdir=$dir
+		  fi
+		  ;;
+		esac
+		if $GREP "^installed=no" $deplib > /dev/null; then
+		case $host in
+		*-*-darwin*)
+		  depdepl=
+		  eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
+		  if test -n "$deplibrary_names"; then
+		    for tmp in $deplibrary_names; do
+		      depdepl=$tmp
+		    done
+		    if test -f "$absdir/$objdir/$depdepl"; then
+		      depdepl=$absdir/$objdir/$depdepl
+		      darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+                      if test -z "$darwin_install_name"; then
+                          darwin_install_name=`$OTOOL64 -L $depdepl  | awk '{if (NR == 2) {print $1;exit}}'`
+                      fi
+		      func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl"
+		      func_append linker_flags " -dylib_file $darwin_install_name:$depdepl"
+		      path=
+		    fi
+		  fi
+		  ;;
+		*)
+		  path=-L$absdir/$objdir
+		  ;;
+		esac
+		else
+		  eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+		  test -z "$libdir" && \
+		    func_fatal_error "'$deplib' is not a valid libtool archive"
+		  test "$absdir" != "$libdir" && \
+		    func_warning "'$deplib' seems to be moved"
+
+		  path=-L$absdir
+		fi
+		;;
+	      esac
+	      case " $deplibs " in
+	      *" $path "*) ;;
+	      *) deplibs="$path $deplibs" ;;
+	      esac
+	    done
+	  fi # link_all_deplibs != no
+	fi # linkmode = lib
+      done # for deplib in $libs
+      if test link = "$pass"; then
+	if test prog = "$linkmode"; then
+	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
+	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
+	else
+	  compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	fi
+      fi
+      dependency_libs=$newdependency_libs
+      if test dlpreopen = "$pass"; then
+	# Link the dlpreopened libraries before other libraries
+	for deplib in $save_deplibs; do
+	  deplibs="$deplib $deplibs"
+	done
+      fi
+      if test dlopen != "$pass"; then
+	test conv = "$pass" || {
+	  # Make sure lib_search_path contains only unique directories.
+	  lib_search_path=
+	  for dir in $newlib_search_path; do
+	    case "$lib_search_path " in
+	    *" $dir "*) ;;
+	    *) func_append lib_search_path " $dir" ;;
+	    esac
+	  done
+	  newlib_search_path=
+	}
+
+	if test prog,link = "$linkmode,$pass"; then
+	  vars="compile_deplibs finalize_deplibs"
+	else
+	  vars=deplibs
+	fi
+	for var in $vars dependency_libs; do
+	  # Add libraries to $var in reverse order
+	  eval tmp_libs=\"\$$var\"
+	  new_libs=
+	  for deplib in $tmp_libs; do
+	    # FIXME: Pedantically, this is the right thing to do, so
+	    #        that some nasty dependency loop isn't accidentally
+	    #        broken:
+	    #new_libs="$deplib $new_libs"
+	    # Pragmatically, this seems to cause very few problems in
+	    # practice:
+	    case $deplib in
+	    -L*) new_libs="$deplib $new_libs" ;;
+	    -R*) ;;
+	    *)
+	      # And here is the reason: when a library appears more
+	      # than once as an explicit dependence of a library, or
+	      # is implicitly linked in more than once by the
+	      # compiler, it is considered special, and multiple
+	      # occurrences thereof are not removed.  Compare this
+	      # with having the same library being listed as a
+	      # dependency of multiple other libraries: in this case,
+	      # we know (pedantically, we assume) the library does not
+	      # need to be listed more than once, so we keep only the
+	      # last copy.  This is not always right, but it is rare
+	      # enough that we require users that really mean to play
+	      # such unportable linking tricks to link the library
+	      # using -Wl,-lname, so that libtool does not consider it
+	      # for duplicate removal.
+	      case " $specialdeplibs " in
+	      *" $deplib "*) new_libs="$deplib $new_libs" ;;
+	      *)
+		case " $new_libs " in
+		*" $deplib "*) ;;
+		*) new_libs="$deplib $new_libs" ;;
+		esac
+		;;
+	      esac
+	      ;;
+	    esac
+	  done
+	  tmp_libs=
+	  for deplib in $new_libs; do
+	    case $deplib in
+	    -L*)
+	      case " $tmp_libs " in
+	      *" $deplib "*) ;;
+	      *) func_append tmp_libs " $deplib" ;;
+	      esac
+	      ;;
+	    *) func_append tmp_libs " $deplib" ;;
+	    esac
+	  done
+	  eval $var=\"$tmp_libs\"
+	done # for var
+      fi
+
+      # Add Sun CC postdeps if required:
+      test CXX = "$tagname" && {
+        case $host_os in
+        linux*)
+          case `$CC -V 2>&1 | sed 5q` in
+          *Sun\ C*) # Sun C++ 5.9
+            func_suncc_cstd_abi
+
+            if test no != "$suncc_use_cstd_abi"; then
+              func_append postdeps ' -library=Cstd -library=Crun'
+            fi
+            ;;
+          esac
+          ;;
+
+        solaris*)
+          func_cc_basename "$CC"
+          case $func_cc_basename_result in
+          CC* | sunCC*)
+            func_suncc_cstd_abi
+
+            if test no != "$suncc_use_cstd_abi"; then
+              func_append postdeps ' -library=Cstd -library=Crun'
+            fi
+            ;;
+          esac
+          ;;
+        esac
+      }
+
+      # Last step: remove runtime libs from dependency_libs
+      # (they stay in deplibs)
+      tmp_libs=
+      for i in $dependency_libs; do
+	case " $predeps $postdeps $compiler_lib_search_path " in
+	*" $i "*)
+	  i=
+	  ;;
+	esac
+	if test -n "$i"; then
+	  func_append tmp_libs " $i"
+	fi
+      done
+      dependency_libs=$tmp_libs
+    done # for pass
+    if test prog = "$linkmode"; then
+      dlfiles=$newdlfiles
+    fi
+    if test prog = "$linkmode" || test lib = "$linkmode"; then
+      dlprefiles=$newdlprefiles
+    fi
+
+    case $linkmode in
+    oldlib)
+      if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+	func_warning "'-dlopen' is ignored for archives"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "'-l' and '-L' are ignored for archives" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "'-rpath' is ignored for archives"
+
+      test -n "$xrpath" && \
+	func_warning "'-R' is ignored for archives"
+
+      test -n "$vinfo" && \
+	func_warning "'-version-info/-version-number' is ignored for archives"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for archives"
+
+      test -n "$export_symbols$export_symbols_regex" && \
+	func_warning "'-export-symbols' is ignored for archives"
+
+      # Now set the variables for building old libraries.
+      build_libtool_libs=no
+      oldlibs=$output
+      func_append objs "$old_deplibs"
+      ;;
+
+    lib)
+      # Make sure we only generate libraries of the form 'libNAME.la'.
+      case $outputname in
+      lib*)
+	func_stripname 'lib' '.la' "$outputname"
+	name=$func_stripname_result
+	eval shared_ext=\"$shrext_cmds\"
+	eval libname=\"$libname_spec\"
+	;;
+      *)
+	test no = "$module" \
+	  && func_fatal_help "libtool library '$output' must begin with 'lib'"
+
+	if test no != "$need_lib_prefix"; then
+	  # Add the "lib" prefix for modules if required
+	  func_stripname '' '.la' "$outputname"
+	  name=$func_stripname_result
+	  eval shared_ext=\"$shrext_cmds\"
+	  eval libname=\"$libname_spec\"
+	else
+	  func_stripname '' '.la' "$outputname"
+	  libname=$func_stripname_result
+	fi
+	;;
+      esac
+
+      if test -n "$objs"; then
+	if test pass_all != "$deplibs_check_method"; then
+	  func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs"
+	else
+	  echo
+	  $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
+	  $ECHO "*** objects $objs is not portable!"
+	  func_append libobjs " $objs"
+	fi
+      fi
+
+      test no = "$dlself" \
+	|| func_warning "'-dlopen self' is ignored for libtool libraries"
+
+      set dummy $rpath
+      shift
+      test 1 -lt "$#" \
+	&& func_warning "ignoring multiple '-rpath's for a libtool library"
+
+      install_libdir=$1
+
+      oldlibs=
+      if test -z "$rpath"; then
+	if test yes = "$build_libtool_libs"; then
+	  # Building a libtool convenience library.
+	  # Some compilers have problems with a '.al' extension so
+	  # convenience libraries should have the same extension an
+	  # archive normally would.
+	  oldlibs="$output_objdir/$libname.$libext $oldlibs"
+	  build_libtool_libs=convenience
+	  build_old_libs=yes
+	fi
+
+	test -n "$vinfo" && \
+	  func_warning "'-version-info/-version-number' is ignored for convenience libraries"
+
+	test -n "$release" && \
+	  func_warning "'-release' is ignored for convenience libraries"
+      else
+
+	# Parse the version information argument.
+	save_ifs=$IFS; IFS=:
+	set dummy $vinfo 0 0 0
+	shift
+	IFS=$save_ifs
+
+	test -n "$7" && \
+	  func_fatal_help "too many parameters to '-version-info'"
+
+	# convert absolute version numbers to libtool ages
+	# this retains compatibility with .la files and attempts
+	# to make the code below a bit more comprehensible
+
+	case $vinfo_number in
+	yes)
+	  number_major=$1
+	  number_minor=$2
+	  number_revision=$3
+	  #
+	  # There are really only two kinds -- those that
+	  # use the current revision as the major version
+	  # and those that subtract age and use age as
+	  # a minor version.  But, then there is irix
+	  # that has an extra 1 added just for fun
+	  #
+	  case $version_type in
+	  # correct linux to gnu/linux during the next big refactor
+	  darwin|freebsd-elf|linux|osf|windows|none)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age=$number_minor
+	    revision=$number_revision
+	    ;;
+	  freebsd-aout|qnx|sunos)
+	    current=$number_major
+	    revision=$number_minor
+	    age=0
+	    ;;
+	  irix|nonstopux)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age=$number_minor
+	    revision=$number_minor
+	    lt_irix_increment=no
+	    ;;
+	  *)
+	    func_fatal_configuration "$modename: unknown library version type '$version_type'"
+	    ;;
+	  esac
+	  ;;
+	no)
+	  current=$1
+	  revision=$2
+	  age=$3
+	  ;;
+	esac
+
+	# Check that each of the things are valid numbers.
+	case $current in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "CURRENT '$current' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $revision in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "REVISION '$revision' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $age in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "AGE '$age' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	if test "$age" -gt "$current"; then
+	  func_error "AGE '$age' is greater than the current interface number '$current'"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	fi
+
+	# Calculate the version variables.
+	major=
+	versuffix=
+	verstring=
+	case $version_type in
+	none) ;;
+
+	darwin)
+	  # Like Linux, but with the current version available in
+	  # verstring for coding it into the library header
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  # Darwin ld doesn't like 0 for these options...
+	  func_arith $current + 1
+	  minor_current=$func_arith_result
+	  xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+	  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+          # On Darwin other compilers
+          case $CC in
+              nagfor*)
+                  verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+                  ;;
+              *)
+                  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+                  ;;
+          esac
+	  ;;
+
+	freebsd-aout)
+	  major=.$current
+	  versuffix=.$current.$revision
+	  ;;
+
+	freebsd-elf)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  ;;
+
+	irix | nonstopux)
+	  if test no = "$lt_irix_increment"; then
+	    func_arith $current - $age
+	  else
+	    func_arith $current - $age + 1
+	  fi
+	  major=$func_arith_result
+
+	  case $version_type in
+	    nonstopux) verstring_prefix=nonstopux ;;
+	    *)         verstring_prefix=sgi ;;
+	  esac
+	  verstring=$verstring_prefix$major.$revision
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$revision
+	  while test 0 -ne "$loop"; do
+	    func_arith $revision - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring=$verstring_prefix$major.$iface:$verstring
+	  done
+
+	  # Before this point, $major must not contain '.'.
+	  major=.$major
+	  versuffix=$major.$revision
+	  ;;
+
+	linux) # correct to gnu/linux during the next big refactor
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  ;;
+
+	osf)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=.$current.$age.$revision
+	  verstring=$current.$age.$revision
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$age
+	  while test 0 -ne "$loop"; do
+	    func_arith $current - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring=$verstring:$iface.0
+	  done
+
+	  # Make executables depend on our current version.
+	  func_append verstring ":$current.0"
+	  ;;
+
+	qnx)
+	  major=.$current
+	  versuffix=.$current
+	  ;;
+
+	sco)
+	  major=.$current
+	  versuffix=.$current
+	  ;;
+
+	sunos)
+	  major=.$current
+	  versuffix=.$current.$revision
+	  ;;
+
+	windows)
+	  # Use '-' rather than '.', since we only want one
+	  # extension on DOS 8.3 file systems.
+	  func_arith $current - $age
+	  major=$func_arith_result
+	  versuffix=-$major
+	  ;;
+
+	*)
+	  func_fatal_configuration "unknown library version type '$version_type'"
+	  ;;
+	esac
+
+	# Clear the version info if we defaulted, and they specified a release.
+	if test -z "$vinfo" && test -n "$release"; then
+	  major=
+	  case $version_type in
+	  darwin)
+	    # we can't check for "0.0" in archive_cmds due to quoting
+	    # problems, so we reset it completely
+	    verstring=
+	    ;;
+	  *)
+	    verstring=0.0
+	    ;;
+	  esac
+	  if test no = "$need_version"; then
+	    versuffix=
+	  else
+	    versuffix=.0.0
+	  fi
+	fi
+
+	# Remove version info from name if versioning should be avoided
+	if test yes,no = "$avoid_version,$need_version"; then
+	  major=
+	  versuffix=
+	  verstring=
+	fi
+
+	# Check to see if the archive will have undefined symbols.
+	if test yes = "$allow_undefined"; then
+	  if test unsupported = "$allow_undefined_flag"; then
+	    if test yes = "$build_old_libs"; then
+	      func_warning "undefined symbols not allowed in $host shared libraries; building static only"
+	      build_libtool_libs=no
+	    else
+	      func_fatal_error "can't build $host shared library unless -no-undefined is specified"
+	    fi
+	  fi
+	else
+	  # Don't allow undefined symbols.
+	  allow_undefined_flag=$no_undefined_flag
+	fi
+
+      fi
+
+      func_generate_dlsyms "$libname" "$libname" :
+      func_append libobjs " $symfileobj"
+      test " " = "$libobjs" && libobjs=
+
+      if test relink != "$opt_mode"; then
+	# Remove our outputs, but don't remove object files since they
+	# may have been created when compiling PIC objects.
+	removelist=
+	tempremovelist=`$ECHO "$output_objdir/*"`
+	for p in $tempremovelist; do
+	  case $p in
+	    *.$objext | *.gcno)
+	       ;;
+	    $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*)
+	       if test -n "$precious_files_regex"; then
+		 if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
+		 then
+		   continue
+		 fi
+	       fi
+	       func_append removelist " $p"
+	       ;;
+	    *) ;;
+	  esac
+	done
+	test -n "$removelist" && \
+	  func_show_eval "${RM}r \$removelist"
+      fi
+
+      # Now set the variables for building old libraries.
+      if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then
+	func_append oldlibs " $output_objdir/$libname.$libext"
+
+	# Transform .lo files to .o files.
+	oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP`
+      fi
+
+      # Eliminate all temporary directories.
+      #for path in $notinst_path; do
+      #	lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
+      #	deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
+      #	dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
+      #done
+
+      if test -n "$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	temp_xrpath=
+	for libdir in $xrpath; do
+	  func_replace_sysroot "$libdir"
+	  func_append temp_xrpath " -R$func_replace_sysroot_result"
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+	if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then
+	  dependency_libs="$temp_xrpath $dependency_libs"
+	fi
+      fi
+
+      # Make sure dlfiles contains only unique files that won't be dlpreopened
+      old_dlfiles=$dlfiles
+      dlfiles=
+      for lib in $old_dlfiles; do
+	case " $dlprefiles $dlfiles " in
+	*" $lib "*) ;;
+	*) func_append dlfiles " $lib" ;;
+	esac
+      done
+
+      # Make sure dlprefiles contains only unique files
+      old_dlprefiles=$dlprefiles
+      dlprefiles=
+      for lib in $old_dlprefiles; do
+	case "$dlprefiles " in
+	*" $lib "*) ;;
+	*) func_append dlprefiles " $lib" ;;
+	esac
+      done
+
+      if test yes = "$build_libtool_libs"; then
+	if test -n "$rpath"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # these systems don't actually have a c library (as such)!
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C library is in the System framework
+	    func_append deplibs " System.ltframework"
+	    ;;
+	  *-*-netbsd*)
+	    # Don't link with libc until the a.out ld.so is fixed.
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	    # Do not include libc due to us having libc/libc_r.
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    ;;
+	  *)
+	    # Add libc to deplibs on all other systems if necessary.
+	    if test yes = "$build_libtool_need_lc"; then
+	      func_append deplibs " -lc"
+	    fi
+	    ;;
+	  esac
+	fi
+
+	# Transform deplibs into only deplibs that can be linked in shared.
+	name_save=$name
+	libname_save=$libname
+	release_save=$release
+	versuffix_save=$versuffix
+	major_save=$major
+	# I'm not sure if I'm treating the release correctly.  I think
+	# release should show up in the -l (ie -lgmp5) so we don't want to
+	# add it in twice.  Is that correct?
+	release=
+	versuffix=
+	major=
+	newdeplibs=
+	droppeddeps=no
+	case $deplibs_check_method in
+	pass_all)
+	  # Don't check for shared/static.  Everything works.
+	  # This might be a little naive.  We might want to check
+	  # whether the library exists or not.  But this is on
+	  # osf3 & osf4 and I'm not really sure... Just
+	  # implementing what was already the behavior.
+	  newdeplibs=$deplibs
+	  ;;
+	test_compile)
+	  # This code stresses the "libraries are programs" paradigm to its
+	  # limits. Maybe even breaks it.  We compile a program, linking it
+	  # against the deplibs as a proxy for the library.  Then we can check
+	  # whether they linked in statically or dynamically with ldd.
+	  $opt_dry_run || $RM conftest.c
+	  cat > conftest.c </dev/null`
+		    $nocaseglob
+		  else
+		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+		  fi
+		  for potent_lib in $potential_libs; do
+		      # Follow soft links.
+		      if ls -lLd "$potent_lib" 2>/dev/null |
+			 $GREP " -> " >/dev/null; then
+			continue
+		      fi
+		      # The statement above tries to avoid entering an
+		      # endless loop below, in case of cyclic links.
+		      # We might still enter an endless loop, since a link
+		      # loop can be closed while we follow links,
+		      # but so what?
+		      potlib=$potent_lib
+		      while test -h "$potlib" 2>/dev/null; do
+			potliblink=`ls -ld $potlib | $SED 's/.* -> //'`
+			case $potliblink in
+			[\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;;
+			*) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";;
+			esac
+		      done
+		      if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
+			 $SED -e 10q |
+			 $EGREP "$file_magic_regex" > /dev/null; then
+			func_append newdeplibs " $a_deplib"
+			a_deplib=
+			break 2
+		      fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib"; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib"; then
+		  $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a file magic. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	match_pattern*)
+	  set dummy $deplibs_check_method; shift
+	  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+	  for a_deplib in $deplibs; do
+	    case $a_deplib in
+	    -l*)
+	      func_stripname -l '' "$a_deplib"
+	      name=$func_stripname_result
+	      if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+		case " $predeps $postdeps " in
+		*" $a_deplib "*)
+		  func_append newdeplibs " $a_deplib"
+		  a_deplib=
+		  ;;
+		esac
+	      fi
+	      if test -n "$a_deplib"; then
+		libname=`eval "\\$ECHO \"$libname_spec\""`
+		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+		  for potent_lib in $potential_libs; do
+		    potlib=$potent_lib # see symlink-check above in file_magic test
+		    if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
+		       $EGREP "$match_pattern_regex" > /dev/null; then
+		      func_append newdeplibs " $a_deplib"
+		      a_deplib=
+		      break 2
+		    fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib"; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib"; then
+		  $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a regex pattern. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	none | unknown | *)
+	  newdeplibs=
+	  tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
+	  if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+	    for i in $predeps $postdeps; do
+	      # can't use Xsed below, because $i might contain '/'
+	      tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"`
+	    done
+	  fi
+	  case $tmp_deplibs in
+	  *[!\	\ ]*)
+	    echo
+	    if test none = "$deplibs_check_method"; then
+	      echo "*** Warning: inter-library dependencies are not supported in this platform."
+	    else
+	      echo "*** Warning: inter-library dependencies are not known to be supported."
+	    fi
+	    echo "*** All declared inter-library dependencies are being dropped."
+	    droppeddeps=yes
+	    ;;
+	  esac
+	  ;;
+	esac
+	versuffix=$versuffix_save
+	major=$major_save
+	release=$release_save
+	libname=$libname_save
+	name=$name_save
+
+	case $host in
+	*-*-rhapsody* | *-*-darwin1.[012])
+	  # On Rhapsody replace the C library with the System framework
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
+	  ;;
+	esac
+
+	if test yes = "$droppeddeps"; then
+	  if test yes = "$module"; then
+	    echo
+	    echo "*** Warning: libtool could not satisfy all declared inter-library"
+	    $ECHO "*** dependencies of module $libname.  Therefore, libtool will create"
+	    echo "*** a static module, that should work as long as the dlopening"
+	    echo "*** application is linked with the -dlopen flag."
+	    if test -z "$global_symbol_pipe"; then
+	      echo
+	      echo "*** However, this would only work if libtool was able to extract symbol"
+	      echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
+	      echo "*** not find such a program.  So, this module is probably useless."
+	      echo "*** 'nm' from GNU binutils and a full rebuild may help."
+	    fi
+	    if test no = "$build_old_libs"; then
+	      oldlibs=$output_objdir/$libname.$libext
+	      build_libtool_libs=module
+	      build_old_libs=yes
+	    else
+	      build_libtool_libs=no
+	    fi
+	  else
+	    echo "*** The inter-library dependencies that have been dropped here will be"
+	    echo "*** automatically added whenever a program is linked with this library"
+	    echo "*** or is declared to -dlopen it."
+
+	    if test no = "$allow_undefined"; then
+	      echo
+	      echo "*** Since this library must not contain undefined symbols,"
+	      echo "*** because either the platform does not support them or"
+	      echo "*** it was explicitly requested with -no-undefined,"
+	      echo "*** libtool will only create a static version of it."
+	      if test no = "$build_old_libs"; then
+		oldlibs=$output_objdir/$libname.$libext
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  fi
+	fi
+	# Done checking deplibs!
+	deplibs=$newdeplibs
+      fi
+      # Time to change all our "foo.ltframework" stuff back to "-framework foo"
+      case $host in
+	*-*-darwin*)
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  ;;
+      esac
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      deplibs=$new_libs
+
+      # All the library-specific variables (install_libdir is set above).
+      library_names=
+      old_library=
+      dlname=
+
+      # Test again, we may have decided not to build it any more
+      if test yes = "$build_libtool_libs"; then
+	# Remove $wl instances when linking with ld.
+	# FIXME: should test the right _cmds variable.
+	case $archive_cmds in
+	  *\$LD\ *) wl= ;;
+        esac
+	if test yes = "$hardcode_into_libs"; then
+	  # Hardcode the library paths
+	  hardcode_libdirs=
+	  dep_rpath=
+	  rpath=$finalize_rpath
+	  test relink = "$opt_mode" || rpath=$compile_rpath$rpath
+	  for libdir in $rpath; do
+	    if test -n "$hardcode_libdir_flag_spec"; then
+	      if test -n "$hardcode_libdir_separator"; then
+		func_replace_sysroot "$libdir"
+		libdir=$func_replace_sysroot_result
+		if test -z "$hardcode_libdirs"; then
+		  hardcode_libdirs=$libdir
+		else
+		  # Just accumulate the unique libdirs.
+		  case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+		  *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		    ;;
+		  *)
+		    func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		    ;;
+		  esac
+		fi
+	      else
+		eval flag=\"$hardcode_libdir_flag_spec\"
+		func_append dep_rpath " $flag"
+	      fi
+	    elif test -n "$runpath_var"; then
+	      case "$perm_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append perm_rpath " $libdir" ;;
+	      esac
+	    fi
+	  done
+	  # Substitute the hardcoded libdirs into the rpath.
+	  if test -n "$hardcode_libdir_separator" &&
+	     test -n "$hardcode_libdirs"; then
+	    libdir=$hardcode_libdirs
+	    eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
+	  fi
+	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
+	    # We should set the runpath_var.
+	    rpath=
+	    for dir in $perm_rpath; do
+	      func_append rpath "$dir:"
+	    done
+	    eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
+	  fi
+	  test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
+	fi
+
+	shlibpath=$finalize_shlibpath
+	test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath
+	if test -n "$shlibpath"; then
+	  eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
+	fi
+
+	# Get the real and link names of the library.
+	eval shared_ext=\"$shrext_cmds\"
+	eval library_names=\"$library_names_spec\"
+	set dummy $library_names
+	shift
+	realname=$1
+	shift
+
+	if test -n "$soname_spec"; then
+	  eval soname=\"$soname_spec\"
+	else
+	  soname=$realname
+	fi
+	if test -z "$dlname"; then
+	  dlname=$soname
+	fi
+
+	lib=$output_objdir/$realname
+	linknames=
+	for link
+	do
+	  func_append linknames " $link"
+	done
+
+	# Use standard objects if they are pic
+	test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	test "X$libobjs" = "X " && libobjs=
+
+	delfiles=
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
+	  export_symbols=$output_objdir/$libname.uexp
+	  func_append delfiles " $export_symbols"
+	fi
+
+	orig_export_symbols=
+	case $host_os in
+	cygwin* | mingw* | cegcc*)
+	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
+	    # exporting using user supplied symfile
+	    func_dll_def_p "$export_symbols" || {
+	      # and it's NOT already a .def file. Must figure out
+	      # which of the given symbols are data symbols and tag
+	      # them as such. So, trigger use of export_symbols_cmds.
+	      # export_symbols gets reassigned inside the "prepare
+	      # the list of exported symbols" if statement, so the
+	      # include_expsyms logic still works.
+	      orig_export_symbols=$export_symbols
+	      export_symbols=
+	      always_export_symbols=yes
+	    }
+	  fi
+	  ;;
+	esac
+
+	# Prepare the list of exported symbols
+	if test -z "$export_symbols"; then
+	  if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then
+	    func_verbose "generating symbol list for '$libname.la'"
+	    export_symbols=$output_objdir/$libname.exp
+	    $opt_dry_run || $RM $export_symbols
+	    cmds=$export_symbols_cmds
+	    save_ifs=$IFS; IFS='~'
+	    for cmd1 in $cmds; do
+	      IFS=$save_ifs
+	      # Take the normal branch if the nm_file_list_spec branch
+	      # doesn't work or if tool conversion is not needed.
+	      case $nm_file_list_spec~$to_tool_file_cmd in
+		*~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
+		  try_normal_branch=yes
+		  eval cmd=\"$cmd1\"
+		  func_len " $cmd"
+		  len=$func_len_result
+		  ;;
+		*)
+		  try_normal_branch=no
+		  ;;
+	      esac
+	      if test yes = "$try_normal_branch" \
+		 && { test "$len" -lt "$max_cmd_len" \
+		      || test "$max_cmd_len" -le -1; }
+	      then
+		func_show_eval "$cmd" 'exit $?'
+		skipped_export=false
+	      elif test -n "$nm_file_list_spec"; then
+		func_basename "$output"
+		output_la=$func_basename_result
+		save_libobjs=$libobjs
+		save_output=$output
+		output=$output_objdir/$output_la.nm
+		func_to_tool_file "$output"
+		libobjs=$nm_file_list_spec$func_to_tool_file_result
+		func_append delfiles " $output"
+		func_verbose "creating $NM input file list: $output"
+		for obj in $save_libobjs; do
+		  func_to_tool_file "$obj"
+		  $ECHO "$func_to_tool_file_result"
+		done > "$output"
+		eval cmd=\"$cmd1\"
+		func_show_eval "$cmd" 'exit $?'
+		output=$save_output
+		libobjs=$save_libobjs
+		skipped_export=false
+	      else
+		# The command line is too long to execute in one step.
+		func_verbose "using reloadable object file for export list..."
+		skipped_export=:
+		# Break out early, otherwise skipped_export may be
+		# set to false by a later but shorter cmd.
+		break
+	      fi
+	    done
+	    IFS=$save_ifs
+	    if test -n "$export_symbols_regex" && test : != "$skipped_export"; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+	fi
+
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  tmp_export_symbols=$export_symbols
+	  test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
+	  $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	fi
+
+	if test : != "$skipped_export" && test -n "$orig_export_symbols"; then
+	  # The given exports_symbols file has to be filtered, so filter it.
+	  func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
+	  # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	  # 's' commands, which not all seds can handle. GNU sed should be fine
+	  # though. Also, the filter scales superlinearly with the number of
+	  # global variables. join(1) would be nice here, but unfortunately
+	  # isn't a blessed tool.
+	  $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	  func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	  export_symbols=$output_objdir/$libname.def
+	  $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	fi
+
+	tmp_deplibs=
+	for test_deplib in $deplibs; do
+	  case " $convenience " in
+	  *" $test_deplib "*) ;;
+	  *)
+	    func_append tmp_deplibs " $test_deplib"
+	    ;;
+	  esac
+	done
+	deplibs=$tmp_deplibs
+
+	if test -n "$convenience"; then
+	  if test -n "$whole_archive_flag_spec" &&
+	    test yes = "$compiler_needs_object" &&
+	    test -z "$libobjs"; then
+	    # extract the archives, so we have objects to list.
+	    # TODO: could optimize this to just extract one archive.
+	    whole_archive_flag_spec=
+	  fi
+	  if test -n "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  else
+	    gentop=$output_objdir/${outputname}x
+	    func_append generated " $gentop"
+
+	    func_extract_archives $gentop $convenience
+	    func_append libobjs " $func_extract_archives_result"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	fi
+
+	if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then
+	  eval flag=\"$thread_safe_flag_spec\"
+	  func_append linker_flags " $flag"
+	fi
+
+	# Make a backup of the uninstalled library when relinking
+	if test relink = "$opt_mode"; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
+	fi
+
+	# Do each of the archive commands.
+	if test yes = "$module" && test -n "$module_cmds"; then
+	  if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	    eval test_cmds=\"$module_expsym_cmds\"
+	    cmds=$module_expsym_cmds
+	  else
+	    eval test_cmds=\"$module_cmds\"
+	    cmds=$module_cmds
+	  fi
+	else
+	  if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	    eval test_cmds=\"$archive_expsym_cmds\"
+	    cmds=$archive_expsym_cmds
+	  else
+	    eval test_cmds=\"$archive_cmds\"
+	    cmds=$archive_cmds
+	  fi
+	fi
+
+	if test : != "$skipped_export" &&
+	   func_len " $test_cmds" &&
+	   len=$func_len_result &&
+	   test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  :
+	else
+	  # The command line is too long to link in one step, link piecewise
+	  # or, if using GNU ld and skipped_export is not :, use a linker
+	  # script.
+
+	  # Save the value of $output and $libobjs because we want to
+	  # use them later.  If we have whole_archive_flag_spec, we
+	  # want to use save_libobjs as it was before
+	  # whole_archive_flag_spec was expanded, because we can't
+	  # assume the linker understands whole_archive_flag_spec.
+	  # This may have to be revisited, in case too many
+	  # convenience libraries get linked in and end up exceeding
+	  # the spec.
+	  if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	  fi
+	  save_output=$output
+	  func_basename "$output"
+	  output_la=$func_basename_result
+
+	  # Clear the reloadable object creation command queue and
+	  # initialize k to one.
+	  test_cmds=
+	  concat_cmds=
+	  objlist=
+	  last_robj=
+	  k=1
+
+	  if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then
+	    output=$output_objdir/$output_la.lnkscript
+	    func_verbose "creating GNU ld script: $output"
+	    echo 'INPUT (' > $output
+	    for obj in $save_libobjs
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    echo ')' >> $output
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$func_to_tool_file_result
+	  elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then
+	    output=$output_objdir/$output_la.lnk
+	    func_verbose "creating linker input file list: $output"
+	    : > $output
+	    set x $save_libobjs
+	    shift
+	    firstobj=
+	    if test yes = "$compiler_needs_object"; then
+	      firstobj="$1 "
+	      shift
+	    fi
+	    for obj
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
+	  else
+	    if test -n "$save_libobjs"; then
+	      func_verbose "creating reloadable object files..."
+	      output=$output_objdir/$output_la-$k.$objext
+	      eval test_cmds=\"$reload_cmds\"
+	      func_len " $test_cmds"
+	      len0=$func_len_result
+	      len=$len0
+
+	      # Loop over the list of objects to be linked.
+	      for obj in $save_libobjs
+	      do
+		func_len " $obj"
+		func_arith $len + $func_len_result
+		len=$func_arith_result
+		if test -z "$objlist" ||
+		   test "$len" -lt "$max_cmd_len"; then
+		  func_append objlist " $obj"
+		else
+		  # The command $test_cmds is almost too long, add a
+		  # command to the queue.
+		  if test 1 -eq "$k"; then
+		    # The first file doesn't have a previous command to add.
+		    reload_objs=$objlist
+		    eval concat_cmds=\"$reload_cmds\"
+		  else
+		    # All subsequent reloadable object files will link in
+		    # the last one created.
+		    reload_objs="$objlist $last_robj"
+		    eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
+		  fi
+		  last_robj=$output_objdir/$output_la-$k.$objext
+		  func_arith $k + 1
+		  k=$func_arith_result
+		  output=$output_objdir/$output_la-$k.$objext
+		  objlist=" $obj"
+		  func_len " $last_robj"
+		  func_arith $len0 + $func_len_result
+		  len=$func_arith_result
+		fi
+	      done
+	      # Handle the remaining objects by creating one last
+	      # reloadable object file.  All subsequent reloadable object
+	      # files will link in the last one created.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      reload_objs="$objlist $last_robj"
+	      eval concat_cmds=\"\$concat_cmds$reload_cmds\"
+	      if test -n "$last_robj"; then
+	        eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+	      fi
+	      func_append delfiles " $output"
+
+	    else
+	      output=
+	    fi
+
+	    ${skipped_export-false} && {
+	      func_verbose "generating symbol list for '$libname.la'"
+	      export_symbols=$output_objdir/$libname.exp
+	      $opt_dry_run || $RM $export_symbols
+	      libobjs=$output
+	      # Append the command to create the export file.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
+	      if test -n "$last_robj"; then
+		eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+	      fi
+	    }
+
+	    test -n "$save_libobjs" &&
+	      func_verbose "creating a temporary reloadable object file: $output"
+
+	    # Loop through the commands generated above and execute them.
+	    save_ifs=$IFS; IFS='~'
+	    for cmd in $concat_cmds; do
+	      IFS=$save_ifs
+	      $opt_quiet || {
+		  func_quote_for_expand "$cmd"
+		  eval "func_echo $func_quote_for_expand_result"
+	      }
+	      $opt_dry_run || eval "$cmd" || {
+		lt_exit=$?
+
+		# Restore the uninstalled library and exit
+		if test relink = "$opt_mode"; then
+		  ( cd "$output_objdir" && \
+		    $RM "${realname}T" && \
+		    $MV "${realname}U" "$realname" )
+		fi
+
+		exit $lt_exit
+	      }
+	    done
+	    IFS=$save_ifs
+
+	    if test -n "$export_symbols_regex" && ${skipped_export-false}; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+
+          ${skipped_export-false} && {
+	    if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	      tmp_export_symbols=$export_symbols
+	      test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
+	      $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	    fi
+
+	    if test -n "$orig_export_symbols"; then
+	      # The given exports_symbols file has to be filtered, so filter it.
+	      func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
+	      # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	      # 's' commands, which not all seds can handle. GNU sed should be fine
+	      # though. Also, the filter scales superlinearly with the number of
+	      # global variables. join(1) would be nice here, but unfortunately
+	      # isn't a blessed tool.
+	      $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	      func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	      export_symbols=$output_objdir/$libname.def
+	      $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	    fi
+	  }
+
+	  libobjs=$output
+	  # Restore the value of output.
+	  output=$save_output
+
+	  if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	  # Expand the library linking commands again to reset the
+	  # value of $libobjs for piecewise linking.
+
+	  # Do each of the archive commands.
+	  if test yes = "$module" && test -n "$module_cmds"; then
+	    if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	      cmds=$module_expsym_cmds
+	    else
+	      cmds=$module_cmds
+	    fi
+	  else
+	    if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	      cmds=$archive_expsym_cmds
+	    else
+	      cmds=$archive_cmds
+	    fi
+	  fi
+	fi
+
+	if test -n "$delfiles"; then
+	  # Append the command to remove temporary files to $cmds.
+	  eval cmds=\"\$cmds~\$RM $delfiles\"
+	fi
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append libobjs " $func_extract_archives_result"
+	  test "X$libobjs" = "X " && libobjs=
+	fi
+
+	save_ifs=$IFS; IFS='~'
+	for cmd in $cmds; do
+	  IFS=$sp$nl
+	  eval cmd=\"$cmd\"
+	  IFS=$save_ifs
+	  $opt_quiet || {
+	    func_quote_for_expand "$cmd"
+	    eval "func_echo $func_quote_for_expand_result"
+	  }
+	  $opt_dry_run || eval "$cmd" || {
+	    lt_exit=$?
+
+	    # Restore the uninstalled library and exit
+	    if test relink = "$opt_mode"; then
+	      ( cd "$output_objdir" && \
+	        $RM "${realname}T" && \
+		$MV "${realname}U" "$realname" )
+	    fi
+
+	    exit $lt_exit
+	  }
+	done
+	IFS=$save_ifs
+
+	# Restore the uninstalled library and exit
+	if test relink = "$opt_mode"; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
+
+	  if test -n "$convenience"; then
+	    if test -z "$whole_archive_flag_spec"; then
+	      func_show_eval '${RM}r "$gentop"'
+	    fi
+	  fi
+
+	  exit $EXIT_SUCCESS
+	fi
+
+	# Create links to the real library.
+	for linkname in $linknames; do
+	  if test "$realname" != "$linkname"; then
+	    func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
+	  fi
+	done
+
+	# If -module or -export-dynamic was specified, set the dlname.
+	if test yes = "$module" || test yes = "$export_dynamic"; then
+	  # On all known operating systems, these are identical.
+	  dlname=$soname
+	fi
+      fi
+      ;;
+
+    obj)
+      if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+	func_warning "'-dlopen' is ignored for objects"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "'-l' and '-L' are ignored for objects" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "'-rpath' is ignored for objects"
+
+      test -n "$xrpath" && \
+	func_warning "'-R' is ignored for objects"
+
+      test -n "$vinfo" && \
+	func_warning "'-version-info' is ignored for objects"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for objects"
+
+      case $output in
+      *.lo)
+	test -n "$objs$old_deplibs" && \
+	  func_fatal_error "cannot build library object '$output' from non-libtool objects"
+
+	libobj=$output
+	func_lo2o "$libobj"
+	obj=$func_lo2o_result
+	;;
+      *)
+	libobj=
+	obj=$output
+	;;
+      esac
+
+      # Delete the old objects.
+      $opt_dry_run || $RM $obj $libobj
+
+      # Objects from convenience libraries.  This assumes
+      # single-version convenience libraries.  Whenever we create
+      # different ones for PIC/non-PIC, this we'll have to duplicate
+      # the extraction.
+      reload_conv_objs=
+      gentop=
+      # if reload_cmds runs $LD directly, get rid of -Wl from
+      # whole_archive_flag_spec and hope we can get by with turning comma
+      # into space.
+      case $reload_cmds in
+        *\$LD[\ \$]*) wl= ;;
+      esac
+      if test -n "$convenience"; then
+	if test -n "$whole_archive_flag_spec"; then
+	  eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
+	  test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
+	  reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags
+	else
+	  gentop=$output_objdir/${obj}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $convenience
+	  reload_conv_objs="$reload_objs $func_extract_archives_result"
+	fi
+      fi
+
+      # If we're not building shared, we need to use non_pic_objs
+      test yes = "$build_libtool_libs" || libobjs=$non_pic_objects
+
+      # Create the old-style object.
+      reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs
+
+      output=$obj
+      func_execute_cmds "$reload_cmds" 'exit $?'
+
+      # Exit if we aren't doing a library object file.
+      if test -z "$libobj"; then
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      test yes = "$build_libtool_libs" || {
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	# Create an invalid libtool object if no PIC, so that we don't
+	# accidentally link it into a program.
+	# $show "echo timestamp > $libobj"
+	# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
+	exit $EXIT_SUCCESS
+      }
+
+      if test -n "$pic_flag" || test default != "$pic_mode"; then
+	# Only do commands if we really have different PIC objects.
+	reload_objs="$libobjs $reload_conv_objs"
+	output=$libobj
+	func_execute_cmds "$reload_cmds" 'exit $?'
+      fi
+
+      if test -n "$gentop"; then
+	func_show_eval '${RM}r "$gentop"'
+      fi
+
+      exit $EXIT_SUCCESS
+      ;;
+
+    prog)
+      case $host in
+	*cygwin*) func_stripname '' '.exe' "$output"
+	          output=$func_stripname_result.exe;;
+      esac
+      test -n "$vinfo" && \
+	func_warning "'-version-info' is ignored for programs"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for programs"
+
+      $preload \
+	&& test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \
+	&& func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support."
+
+      case $host in
+      *-*-rhapsody* | *-*-darwin1.[012])
+	# On Rhapsody replace the C library is the System framework
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	;;
+      esac
+
+      case $host in
+      *-*-darwin*)
+	# Don't allow lazy linking, it breaks C++ global constructors
+	# But is supposedly fixed on 10.4 or later (yay!).
+	if test CXX = "$tagname"; then
+	  case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
+	    10.[0123])
+	      func_append compile_command " $wl-bind_at_load"
+	      func_append finalize_command " $wl-bind_at_load"
+	    ;;
+	  esac
+	fi
+	# Time to change all our "foo.ltframework" stuff back to "-framework foo"
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	;;
+      esac
+
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $compile_deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $compile_deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      compile_deplibs=$new_libs
+
+
+      func_append compile_command " $compile_deplibs"
+      func_append finalize_command " $finalize_deplibs"
+
+      if test -n "$rpath$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	for libdir in $rpath $xrpath; do
+	  # This is the magic to use -rpath.
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+      fi
+
+      # Now hardcode the library paths
+      rpath=
+      hardcode_libdirs=
+      for libdir in $compile_rpath $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs=$libdir
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append perm_rpath " $libdir" ;;
+	  esac
+	fi
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$libdir:"*) ;;
+	  ::) dllsearchpath=$libdir;;
+	  *) func_append dllsearchpath ":$libdir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir=$hardcode_libdirs
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      compile_rpath=$rpath
+
+      rpath=
+      hardcode_libdirs=
+      for libdir in $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs=$libdir
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$finalize_perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_perm_rpath " $libdir" ;;
+	  esac
+	fi
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir=$hardcode_libdirs
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      finalize_rpath=$rpath
+
+      if test -n "$libobjs" && test yes = "$build_old_libs"; then
+	# Transform all the library objects into standard objects.
+	compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+      fi
+
+      func_generate_dlsyms "$outputname" "@PROGRAM@" false
+
+      # template prelinking step
+      if test -n "$prelink_cmds"; then
+	func_execute_cmds "$prelink_cmds" 'exit $?'
+      fi
+
+      wrappers_required=:
+      case $host in
+      *cegcc* | *mingw32ce*)
+        # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
+        wrappers_required=false
+        ;;
+      *cygwin* | *mingw* )
+        test yes = "$build_libtool_libs" || wrappers_required=false
+        ;;
+      *)
+        if test no = "$need_relink" || test yes != "$build_libtool_libs"; then
+          wrappers_required=false
+        fi
+        ;;
+      esac
+      $wrappers_required || {
+	# Replace the output file specification.
+	compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	link_command=$compile_command$compile_rpath
+
+	# We have no uninstalled library dependencies, so finalize right now.
+	exit_status=0
+	func_show_eval "$link_command" 'exit_status=$?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	# Delete the generated files.
+	if test -f "$output_objdir/${outputname}S.$objext"; then
+	  func_show_eval '$RM "$output_objdir/${outputname}S.$objext"'
+	fi
+
+	exit $exit_status
+      }
+
+      if test -n "$compile_shlibpath$finalize_shlibpath"; then
+	compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
+      fi
+      if test -n "$finalize_shlibpath"; then
+	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
+      fi
+
+      compile_var=
+      finalize_var=
+      if test -n "$runpath_var"; then
+	if test -n "$perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+	if test -n "$finalize_perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $finalize_perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+      fi
+
+      if test yes = "$no_install"; then
+	# We don't need to create a wrapper script.
+	link_command=$compile_var$compile_command$compile_rpath
+	# Replace the output file specification.
+	link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	# Delete the old output file.
+	$opt_dry_run || $RM $output
+	# Link the executable and exit
+	func_show_eval "$link_command" 'exit $?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      case $hardcode_action,$fast_install in
+        relink,*)
+	  # Fast installation is not supported
+	  link_command=$compile_var$compile_command$compile_rpath
+	  relink_command=$finalize_var$finalize_command$finalize_rpath
+
+	  func_warning "this platform does not like uninstalled shared libraries"
+	  func_warning "'$output' will be relinked during installation"
+	  ;;
+        *,yes)
+	  link_command=$finalize_var$compile_command$finalize_rpath
+	  relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
+          ;;
+	*,no)
+	  link_command=$compile_var$compile_command$compile_rpath
+	  relink_command=$finalize_var$finalize_command$finalize_rpath
+          ;;
+	*,needless)
+	  link_command=$finalize_var$compile_command$finalize_rpath
+	  relink_command=
+          ;;
+      esac
+
+      # Replace the output file specification.
+      link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
+
+      # Delete the old output files.
+      $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
+
+      func_show_eval "$link_command" 'exit $?'
+
+      if test -n "$postlink_cmds"; then
+	func_to_tool_file "$output_objdir/$outputname"
+	postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	func_execute_cmds "$postlink_cmds" 'exit $?'
+      fi
+
+      # Now create the wrapper script.
+      func_verbose "creating $output"
+
+      # Quote the relink command for shipping.
+      if test -n "$relink_command"; then
+	# Preserve any variables that may affect compiler behavior
+	for var in $variables_saved_for_relink; do
+	  if eval test -z \"\${$var+set}\"; then
+	    relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	  elif eval var_value=\$$var; test -z "$var_value"; then
+	    relink_command="$var=; export $var; $relink_command"
+	  else
+	    func_quote_for_eval "$var_value"
+	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	  fi
+	done
+	relink_command="(cd `pwd`; $relink_command)"
+	relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      fi
+
+      # Only actually do things if not in dry run mode.
+      $opt_dry_run || {
+	# win32 will think the script is a binary if it has
+	# a .exe suffix, so we strip it off here.
+	case $output in
+	  *.exe) func_stripname '' '.exe' "$output"
+	         output=$func_stripname_result ;;
+	esac
+	# test for cygwin because mv fails w/o .exe extensions
+	case $host in
+	  *cygwin*)
+	    exeext=.exe
+	    func_stripname '' '.exe' "$outputname"
+	    outputname=$func_stripname_result ;;
+	  *) exeext= ;;
+	esac
+	case $host in
+	  *cygwin* | *mingw* )
+	    func_dirname_and_basename "$output" "" "."
+	    output_name=$func_basename_result
+	    output_path=$func_dirname_result
+	    cwrappersource=$output_path/$objdir/lt-$output_name.c
+	    cwrapper=$output_path/$output_name.exe
+	    $RM $cwrappersource $cwrapper
+	    trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_cwrapperexe_src > $cwrappersource
+
+	    # The wrapper executable is built using the $host compiler,
+	    # because it contains $host paths and files. If cross-
+	    # compiling, it, like the target executable, must be
+	    # executed on the $host or under an emulation environment.
+	    $opt_dry_run || {
+	      $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
+	      $STRIP $cwrapper
+	    }
+
+	    # Now, create the wrapper script for func_source use:
+	    func_ltwrapper_scriptname $cwrapper
+	    $RM $func_ltwrapper_scriptname_result
+	    trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
+	    $opt_dry_run || {
+	      # note: this script will not be executed, so do not chmod.
+	      if test "x$build" = "x$host"; then
+		$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
+	      else
+		func_emit_wrapper no > $func_ltwrapper_scriptname_result
+	      fi
+	    }
+	  ;;
+	  * )
+	    $RM $output
+	    trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_wrapper no > $output
+	    chmod +x $output
+	  ;;
+	esac
+      }
+      exit $EXIT_SUCCESS
+      ;;
+    esac
+
+    # See if we need to build an old-fashioned archive.
+    for oldlib in $oldlibs; do
+
+      case $build_libtool_libs in
+        convenience)
+	  oldobjs="$libobjs_save $symfileobj"
+	  addlibs=$convenience
+	  build_libtool_libs=no
+	  ;;
+	module)
+	  oldobjs=$libobjs_save
+	  addlibs=$old_convenience
+	  build_libtool_libs=no
+          ;;
+	*)
+	  oldobjs="$old_deplibs $non_pic_objects"
+	  $preload && test -f "$symfileobj" \
+	    && func_append oldobjs " $symfileobj"
+	  addlibs=$old_convenience
+	  ;;
+      esac
+
+      if test -n "$addlibs"; then
+	gentop=$output_objdir/${outputname}x
+	func_append generated " $gentop"
+
+	func_extract_archives $gentop $addlibs
+	func_append oldobjs " $func_extract_archives_result"
+      fi
+
+      # Do each command in the archive commands.
+      if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then
+	cmds=$old_archive_from_new_cmds
+      else
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append oldobjs " $func_extract_archives_result"
+	fi
+
+	# POSIX demands no paths to be encoded in archives.  We have
+	# to avoid creating archives with duplicate basenames if we
+	# might have to extract them afterwards, e.g., when creating a
+	# static archive out of a convenience library, or when linking
+	# the entirety of a libtool archive into another (currently
+	# not supported by libtool).
+	if (for obj in $oldobjs
+	    do
+	      func_basename "$obj"
+	      $ECHO "$func_basename_result"
+	    done | sort | sort -uc >/dev/null 2>&1); then
+	  :
+	else
+	  echo "copying selected object files to avoid basename conflicts..."
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+	  func_mkdir_p "$gentop"
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  counter=1
+	  for obj in $save_oldobjs
+	  do
+	    func_basename "$obj"
+	    objbase=$func_basename_result
+	    case " $oldobjs " in
+	    " ") oldobjs=$obj ;;
+	    *[\ /]"$objbase "*)
+	      while :; do
+		# Make sure we don't pick an alternate name that also
+		# overlaps.
+		newobj=lt$counter-$objbase
+		func_arith $counter + 1
+		counter=$func_arith_result
+		case " $oldobjs " in
+		*[\ /]"$newobj "*) ;;
+		*) if test ! -f "$gentop/$newobj"; then break; fi ;;
+		esac
+	      done
+	      func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
+	      func_append oldobjs " $gentop/$newobj"
+	      ;;
+	    *) func_append oldobjs " $obj" ;;
+	    esac
+	  done
+	fi
+	func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+	tool_oldlib=$func_to_tool_file_result
+	eval cmds=\"$old_archive_cmds\"
+
+	func_len " $cmds"
+	len=$func_len_result
+	if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  cmds=$old_archive_cmds
+	elif test -n "$archiver_list_spec"; then
+	  func_verbose "using command file archive linking..."
+	  for obj in $oldobjs
+	  do
+	    func_to_tool_file "$obj"
+	    $ECHO "$func_to_tool_file_result"
+	  done > $output_objdir/$libname.libcmd
+	  func_to_tool_file "$output_objdir/$libname.libcmd"
+	  oldobjs=" $archiver_list_spec$func_to_tool_file_result"
+	  cmds=$old_archive_cmds
+	else
+	  # the command line is too long to link in one step, link in parts
+	  func_verbose "using piecewise archive linking..."
+	  save_RANLIB=$RANLIB
+	  RANLIB=:
+	  objlist=
+	  concat_cmds=
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  # Is there a better way of finding the last object in the list?
+	  for obj in $save_oldobjs
+	  do
+	    last_oldobj=$obj
+	  done
+	  eval test_cmds=\"$old_archive_cmds\"
+	  func_len " $test_cmds"
+	  len0=$func_len_result
+	  len=$len0
+	  for obj in $save_oldobjs
+	  do
+	    func_len " $obj"
+	    func_arith $len + $func_len_result
+	    len=$func_arith_result
+	    func_append objlist " $obj"
+	    if test "$len" -lt "$max_cmd_len"; then
+	      :
+	    else
+	      # the above command should be used before it gets too long
+	      oldobjs=$objlist
+	      if test "$obj" = "$last_oldobj"; then
+		RANLIB=$save_RANLIB
+	      fi
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\$concat_cmds$old_archive_cmds\"
+	      objlist=
+	      len=$len0
+	    fi
+	  done
+	  RANLIB=$save_RANLIB
+	  oldobjs=$objlist
+	  if test -z "$oldobjs"; then
+	    eval cmds=\"\$concat_cmds\"
+	  else
+	    eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
+	  fi
+	fi
+      fi
+      func_execute_cmds "$cmds" 'exit $?'
+    done
+
+    test -n "$generated" && \
+      func_show_eval "${RM}r$generated"
+
+    # Now create the libtool archive.
+    case $output in
+    *.la)
+      old_library=
+      test yes = "$build_old_libs" && old_library=$libname.$libext
+      func_verbose "creating $output"
+
+      # Preserve any variables that may affect compiler behavior
+      for var in $variables_saved_for_relink; do
+	if eval test -z \"\${$var+set}\"; then
+	  relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	elif eval var_value=\$$var; test -z "$var_value"; then
+	  relink_command="$var=; export $var; $relink_command"
+	else
+	  func_quote_for_eval "$var_value"
+	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	fi
+      done
+      # Quote the link command for shipping.
+      relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
+      relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      if test yes = "$hardcode_automatic"; then
+	relink_command=
+      fi
+
+      # Only create the output if not a dry run.
+      $opt_dry_run || {
+	for installed in no yes; do
+	  if test yes = "$installed"; then
+	    if test -z "$install_libdir"; then
+	      break
+	    fi
+	    output=$output_objdir/${outputname}i
+	    # Replace all uninstalled libtool libraries with the installed ones
+	    newdependency_libs=
+	    for deplib in $dependency_libs; do
+	      case $deplib in
+	      *.la)
+		func_basename "$deplib"
+		name=$func_basename_result
+		func_resolve_sysroot "$deplib"
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
+		test -z "$libdir" && \
+		  func_fatal_error "'$deplib' is not a valid libtool archive"
+		func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      -L*)
+		func_stripname -L '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -L$func_replace_sysroot_result"
+		;;
+	      -R*)
+		func_stripname -R '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -R$func_replace_sysroot_result"
+		;;
+	      *) func_append newdependency_libs " $deplib" ;;
+	      esac
+	    done
+	    dependency_libs=$newdependency_libs
+	    newdlfiles=
+
+	    for lib in $dlfiles; do
+	      case $lib in
+	      *.la)
+	        func_basename "$lib"
+		name=$func_basename_result
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "'$lib' is not a valid libtool archive"
+		func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      *) func_append newdlfiles " $lib" ;;
+	      esac
+	    done
+	    dlfiles=$newdlfiles
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+	      *.la)
+		# Only pass preopened files to the pseudo-archive (for
+		# eventual linking with the app. that links it) if we
+		# didn't already link the preopened objects directly into
+		# the library:
+		func_basename "$lib"
+		name=$func_basename_result
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "'$lib' is not a valid libtool archive"
+		func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      esac
+	    done
+	    dlprefiles=$newdlprefiles
+	  else
+	    newdlfiles=
+	    for lib in $dlfiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlfiles " $abs"
+	    done
+	    dlfiles=$newdlfiles
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlprefiles " $abs"
+	    done
+	    dlprefiles=$newdlprefiles
+	  fi
+	  $RM $output
+	  # place dlname in correct position for cygwin
+	  # In fact, it would be nice if we could use this code for all target
+	  # systems that can't hard-code library paths into their executables
+	  # and that have no shared library path variable independent of PATH,
+	  # but it turns out we can't easily determine that from inspecting
+	  # libtool variables, so we have to hard-code the OSs to which it
+	  # applies here; at the moment, that means platforms that use the PE
+	  # object format with DLL files.  See the long comment at the top of
+	  # tests/bindir.at for full details.
+	  tdlname=$dlname
+	  case $host,$output,$installed,$module,$dlname in
+	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
+	      # If a -bindir argument was supplied, place the dll there.
+	      if test -n "$bindir"; then
+		func_relative_path "$install_libdir" "$bindir"
+		tdlname=$func_relative_path_result/$dlname
+	      else
+		# Otherwise fall back on heuristic.
+		tdlname=../bin/$dlname
+	      fi
+	      ;;
+	  esac
+	  $ECHO > $output "\
+# $outputname - a libtool library file
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# The name that we can dlopen(3).
+dlname='$tdlname'
+
+# Names of this library.
+library_names='$library_names'
+
+# The name of the static archive.
+old_library='$old_library'
+
+# Linker flags that cannot go in dependency_libs.
+inherited_linker_flags='$new_inherited_linker_flags'
+
+# Libraries that this one depends upon.
+dependency_libs='$dependency_libs'
+
+# Names of additional weak libraries provided by this library
+weak_library_names='$weak_libs'
+
+# Version information for $libname.
+current=$current
+age=$age
+revision=$revision
+
+# Is this an already installed library?
+installed=$installed
+
+# Should we warn about portability when linking against -modules?
+shouldnotlink=$module
+
+# Files to dlopen/dlpreopen
+dlopen='$dlfiles'
+dlpreopen='$dlprefiles'
+
+# Directory that this library needs to be installed in:
+libdir='$install_libdir'"
+	  if test no,yes = "$installed,$need_relink"; then
+	    $ECHO >> $output "\
+relink_command=\"$relink_command\""
+	  fi
+	done
+      }
+
+      # Do a symbolic link so that the libtool archive can be found in
+      # LD_LIBRARY_PATH before the program is installed.
+      func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
+      ;;
+    esac
+    exit $EXIT_SUCCESS
+}
+
+if test link = "$opt_mode" || test relink = "$opt_mode"; then
+  func_mode_link ${1+"$@"}
+fi
+
+
+# func_mode_uninstall arg...
+func_mode_uninstall ()
+{
+    $debug_cmd
+
+    RM=$nonopt
+    files=
+    rmforce=false
+    exit_status=0
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic=$magic
+
+    for arg
+    do
+      case $arg in
+      -f) func_append RM " $arg"; rmforce=: ;;
+      -*) func_append RM " $arg" ;;
+      *) func_append files " $arg" ;;
+      esac
+    done
+
+    test -z "$RM" && \
+      func_fatal_help "you must specify an RM program"
+
+    rmdirs=
+
+    for file in $files; do
+      func_dirname "$file" "" "."
+      dir=$func_dirname_result
+      if test . = "$dir"; then
+	odir=$objdir
+      else
+	odir=$dir/$objdir
+      fi
+      func_basename "$file"
+      name=$func_basename_result
+      test uninstall = "$opt_mode" && odir=$dir
+
+      # Remember odir for removal later, being careful to avoid duplicates
+      if test clean = "$opt_mode"; then
+	case " $rmdirs " in
+	  *" $odir "*) ;;
+	  *) func_append rmdirs " $odir" ;;
+	esac
+      fi
+
+      # Don't error if the file doesn't exist and rm -f was used.
+      if { test -L "$file"; } >/dev/null 2>&1 ||
+	 { test -h "$file"; } >/dev/null 2>&1 ||
+	 test -f "$file"; then
+	:
+      elif test -d "$file"; then
+	exit_status=1
+	continue
+      elif $rmforce; then
+	continue
+      fi
+
+      rmfiles=$file
+
+      case $name in
+      *.la)
+	# Possibly a libtool archive, so verify it.
+	if func_lalib_p "$file"; then
+	  func_source $dir/$name
+
+	  # Delete the libtool libraries and symlinks.
+	  for n in $library_names; do
+	    func_append rmfiles " $odir/$n"
+	  done
+	  test -n "$old_library" && func_append rmfiles " $odir/$old_library"
+
+	  case $opt_mode in
+	  clean)
+	    case " $library_names " in
+	    *" $dlname "*) ;;
+	    *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
+	    esac
+	    test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
+	    ;;
+	  uninstall)
+	    if test -n "$library_names"; then
+	      # Do each command in the postuninstall commands.
+	      func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1'
+	    fi
+
+	    if test -n "$old_library"; then
+	      # Do each command in the old_postuninstall commands.
+	      func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1'
+	    fi
+	    # FIXME: should reinstall the best remaining shared library.
+	    ;;
+	  esac
+	fi
+	;;
+
+      *.lo)
+	# Possibly a libtool object, so verify it.
+	if func_lalib_p "$file"; then
+
+	  # Read the .lo file
+	  func_source $dir/$name
+
+	  # Add PIC object to the list of files to remove.
+	  if test -n "$pic_object" && test none != "$pic_object"; then
+	    func_append rmfiles " $dir/$pic_object"
+	  fi
+
+	  # Add non-PIC object to the list of files to remove.
+	  if test -n "$non_pic_object" && test none != "$non_pic_object"; then
+	    func_append rmfiles " $dir/$non_pic_object"
+	  fi
+	fi
+	;;
+
+      *)
+	if test clean = "$opt_mode"; then
+	  noexename=$name
+	  case $file in
+	  *.exe)
+	    func_stripname '' '.exe' "$file"
+	    file=$func_stripname_result
+	    func_stripname '' '.exe' "$name"
+	    noexename=$func_stripname_result
+	    # $file with .exe has already been added to rmfiles,
+	    # add $file without .exe
+	    func_append rmfiles " $file"
+	    ;;
+	  esac
+	  # Do a test to see if this is a libtool program.
+	  if func_ltwrapper_p "$file"; then
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      relink_command=
+	      func_source $func_ltwrapper_scriptname_result
+	      func_append rmfiles " $func_ltwrapper_scriptname_result"
+	    else
+	      relink_command=
+	      func_source $dir/$noexename
+	    fi
+
+	    # note $name still contains .exe if it was in $file originally
+	    # as does the version of $file that was added into $rmfiles
+	    func_append rmfiles " $odir/$name $odir/${name}S.$objext"
+	    if test yes = "$fast_install" && test -n "$relink_command"; then
+	      func_append rmfiles " $odir/lt-$name"
+	    fi
+	    if test "X$noexename" != "X$name"; then
+	      func_append rmfiles " $odir/lt-$noexename.c"
+	    fi
+	  fi
+	fi
+	;;
+      esac
+      func_show_eval "$RM $rmfiles" 'exit_status=1'
+    done
+
+    # Try to remove the $objdir's in the directories where we deleted files
+    for dir in $rmdirs; do
+      if test -d "$dir"; then
+	func_show_eval "rmdir $dir >/dev/null 2>&1"
+      fi
+    done
+
+    exit $exit_status
+}
+
+if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then
+  func_mode_uninstall ${1+"$@"}
+fi
+
+test -z "$opt_mode" && {
+  help=$generic_help
+  func_fatal_help "you must specify a MODE"
+}
+
+test -z "$exec_cmd" && \
+  func_fatal_help "invalid operation mode '$opt_mode'"
+
+if test -n "$exec_cmd"; then
+  eval exec "$exec_cmd"
+  exit $EXIT_FAILURE
+fi
+
+exit $exit_status
+
+
+# The TAGs below are defined such that we never get into a situation
+# where we disable both kinds of libraries.  Given conflicting
+# choices, we go for a static library, that is the most portable,
+# since we can't tell whether shared libraries were disabled because
+# the user asked for that or because the platform doesn't support
+# them.  This is particularly important on AIX, because we don't
+# support having both static and shared libraries enabled at the same
+# time on that platform, so we default to a shared-only configuration.
+# If a disable-shared tag is given, we'll fallback to a static-only
+# configuration.  But we'll never go from static-only to shared-only.
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
+build_libtool_libs=no
+build_old_libs=yes
+# ### END LIBTOOL TAG CONFIG: disable-shared
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-static
+build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
+# ### END LIBTOOL TAG CONFIG: disable-static
+
+# Local Variables:
+# mode:shell-script
+# sh-indentation:2
+# End:
+
+# ### BEGIN LIBTOOL TAG CONFIG: CXX
+
+# The linker used to build libraries.
+LD="/usr/bin/ld -m elf_x86_64"
+
+# How to create reloadable object files.
+reload_flag=" -r"
+reload_cmds="\$LD\$reload_flag -o \$output\$reload_objs"
+
+# Commands used to build an old-style archive.
+old_archive_cmds="\$AR \$AR_FLAGS \$oldlib\$oldobjs~\$RANLIB \$tool_oldlib"
+
+# A language specific compiler.
+CC="g++ -std=gnu++11"
+
+# Is the compiler the GNU compiler?
+with_gcc=yes
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=" -fno-builtin"
+
+# Additional compiler flags for building library objects.
+pic_flag=" -fPIC -DPIC"
+
+# How to pass a linker flag through the compiler.
+wl="-Wl,"
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag="-static"
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o="yes"
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=no
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=no
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec="\$wl--export-dynamic"
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec="\$wl--whole-archive\$convenience \$wl--no-whole-archive"
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object="no"
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=""
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=""
+
+# Commands used to build a shared archive.
+archive_cmds="\$CC \$pic_flag -shared -nostdlib \$predep_objects \$libobjs \$deplibs \$postdep_objects \$compiler_flags \$wl-soname \$wl\$soname -o \$lib"
+archive_expsym_cmds="\$CC \$pic_flag -shared -nostdlib \$predep_objects \$libobjs \$deplibs \$postdep_objects \$compiler_flags \$wl-soname \$wl\$soname \$wl-retain-symbols-file \$wl\$export_symbols -o \$lib"
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=""
+module_expsym_cmds=""
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld="yes"
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=""
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=""
+
+# Flag to hardcode $libdir into a binary during linking.
+# This must work even if $libdir does not exist
+hardcode_libdir_flag_spec="\$wl-rpath \$wl\$libdir"
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=""
+
+# Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=no
+
+# Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting $shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=no
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=no
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=unsupported
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=no
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=no
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=no
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=no
+
+# The commands to list exported symbols.
+export_symbols_cmds="\$NM \$libobjs \$convenience | \$global_symbol_pipe | \$SED 's/.* //' | sort | uniq > \$export_symbols"
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms="_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*"
+
+# Symbols that must always be exported.
+include_expsyms=""
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=""
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=""
+
+# Specify filename containing input files.
+file_list_spec=""
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=immediate
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs="/usr/lib/gcc/x86_64-linux-gnu/10 /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu /usr/lib/gcc/x86_64-linux-gnu/10/../../../../lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /usr/lib/gcc/x86_64-linux-gnu/10/../../.."
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects="/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/crti.o /usr/lib/gcc/x86_64-linux-gnu/10/crtbeginS.o"
+postdep_objects="/usr/lib/gcc/x86_64-linux-gnu/10/crtendS.o /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/crtn.o"
+predeps=""
+postdeps="-lstdc++ -lm -lgcc_s -lc -lgcc_s"
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path="-L/usr/lib/gcc/x86_64-linux-gnu/10 -L/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu -L/usr/lib/gcc/x86_64-linux-gnu/10/../../../../lib -L/lib/x86_64-linux-gnu -L/lib/../lib -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/10/../../.."
+
+# ### END LIBTOOL TAG CONFIG: CXX
diff --git a/trunk/3rdparty/gperftools-2-fit/ltmain.sh b/trunk/3rdparty/gperftools-2-fit/ltmain.sh
new file mode 100755
index 000000000..21e5e0784
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/ltmain.sh
@@ -0,0 +1,11251 @@
+#! /bin/sh
+## DO NOT EDIT - This file generated from ./build-aux/ltmain.in
+##               by inline-source v2014-01-03.01
+
+# libtool (GNU libtool) 2.4.6
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit , 1996
+
+# Copyright (C) 1996-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+
+PROGRAM=libtool
+PACKAGE=libtool
+VERSION="2.4.6 Debian-2.4.6-15"
+package_revision=2.4.6
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Run './libtool --help' for help with using this script from the
+# command line.
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# After configure completes, it has a better idea of some of the
+# shell tools we need than the defaults used by the functions shared
+# with bootstrap, so set those here where they can still be over-
+# ridden by the user, but otherwise take precedence.
+
+: ${AUTOCONF="autoconf"}
+: ${AUTOMAKE="automake"}
+
+
+## -------------------------- ##
+## Source external libraries. ##
+## -------------------------- ##
+
+# Much of our low-level functionality needs to be sourced from external
+# libraries, which are installed to $pkgauxdir.
+
+# Set a version string for this script.
+scriptversion=2015-01-20.17; # UTC
+
+# General shell script boiler plate, and helper functions.
+# Written by Gary V. Vaughan, 2004
+
+# Copyright (C) 2004-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# As a special exception to the GNU General Public License, if you distribute
+# this file as part of a program or library that is built using GNU Libtool,
+# you may include this file under the same distribution terms that you use
+# for the rest of that program.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Evaluate this file near the top of your script to gain access to
+# the functions and variables defined here:
+#
+#   . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
+#
+# If you need to override any of the default environment variable
+# settings, do that before evaluating this file.
+
+
+## -------------------- ##
+## Shell normalisation. ##
+## -------------------- ##
+
+# Some shells need a little help to be as Bourne compatible as possible.
+# Before doing anything else, make sure all that help has been provided!
+
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
+fi
+
+# NLS nuisances: We save the old values in case they are required later.
+_G_user_locale=
+_G_safe_locale=
+for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+do
+  eval "if test set = \"\${$_G_var+set}\"; then
+          save_$_G_var=\$$_G_var
+          $_G_var=C
+	  export $_G_var
+	  _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
+	  _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
+	fi"
+done
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Make sure IFS has a sensible default
+sp=' '
+nl='
+'
+IFS="$sp	$nl"
+
+# There are apparently some retarded systems that use ';' as a PATH separator!
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+
+## ------------------------- ##
+## Locate command utilities. ##
+## ------------------------- ##
+
+
+# func_executable_p FILE
+# ----------------------
+# Check that FILE is an executable regular file.
+func_executable_p ()
+{
+    test -f "$1" && test -x "$1"
+}
+
+
+# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
+# --------------------------------------------
+# Search for either a program that responds to --version with output
+# containing "GNU", or else returned by CHECK_FUNC otherwise, by
+# trying all the directories in PATH with each of the elements of
+# PROGS_LIST.
+#
+# CHECK_FUNC should accept the path to a candidate program, and
+# set $func_check_prog_result if it truncates its output less than
+# $_G_path_prog_max characters.
+func_path_progs ()
+{
+    _G_progs_list=$1
+    _G_check_func=$2
+    _G_PATH=${3-"$PATH"}
+
+    _G_path_prog_max=0
+    _G_path_prog_found=false
+    _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
+    for _G_dir in $_G_PATH; do
+      IFS=$_G_save_IFS
+      test -z "$_G_dir" && _G_dir=.
+      for _G_prog_name in $_G_progs_list; do
+        for _exeext in '' .EXE; do
+          _G_path_prog=$_G_dir/$_G_prog_name$_exeext
+          func_executable_p "$_G_path_prog" || continue
+          case `"$_G_path_prog" --version 2>&1` in
+            *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
+            *)     $_G_check_func $_G_path_prog
+		   func_path_progs_result=$func_check_prog_result
+		   ;;
+          esac
+          $_G_path_prog_found && break 3
+        done
+      done
+    done
+    IFS=$_G_save_IFS
+    test -z "$func_path_progs_result" && {
+      echo "no acceptable sed could be found in \$PATH" >&2
+      exit 1
+    }
+}
+
+
+# We want to be able to use the functions in this file before configure
+# has figured out where the best binaries are kept, which means we have
+# to search for them ourselves - except when the results are already set
+# where we skip the searches.
+
+# Unless the user overrides by setting SED, search the path for either GNU
+# sed, or the sed that truncates its output the least.
+test -z "$SED" && {
+  _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+  for _G_i in 1 2 3 4 5 6 7; do
+    _G_sed_script=$_G_sed_script$nl$_G_sed_script
+  done
+  echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
+  _G_sed_script=
+
+  func_check_prog_sed ()
+  {
+    _G_path_prog=$1
+
+    _G_count=0
+    printf 0123456789 >conftest.in
+    while :
+    do
+      cat conftest.in conftest.in >conftest.tmp
+      mv conftest.tmp conftest.in
+      cp conftest.in conftest.nl
+      echo '' >> conftest.nl
+      "$_G_path_prog" -f conftest.sed conftest.out 2>/dev/null || break
+      diff conftest.out conftest.nl >/dev/null 2>&1 || break
+      _G_count=`expr $_G_count + 1`
+      if test "$_G_count" -gt "$_G_path_prog_max"; then
+        # Best one so far, save it but keep looking for a better one
+        func_check_prog_result=$_G_path_prog
+        _G_path_prog_max=$_G_count
+      fi
+      # 10*(2^10) chars as input seems more than enough
+      test 10 -lt "$_G_count" && break
+    done
+    rm -f conftest.in conftest.tmp conftest.nl conftest.out
+  }
+
+  func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin
+  rm -f conftest.sed
+  SED=$func_path_progs_result
+}
+
+
+# Unless the user overrides by setting GREP, search the path for either GNU
+# grep, or the grep that truncates its output the least.
+test -z "$GREP" && {
+  func_check_prog_grep ()
+  {
+    _G_path_prog=$1
+
+    _G_count=0
+    _G_path_prog_max=0
+    printf 0123456789 >conftest.in
+    while :
+    do
+      cat conftest.in conftest.in >conftest.tmp
+      mv conftest.tmp conftest.in
+      cp conftest.in conftest.nl
+      echo 'GREP' >> conftest.nl
+      "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' conftest.out 2>/dev/null || break
+      diff conftest.out conftest.nl >/dev/null 2>&1 || break
+      _G_count=`expr $_G_count + 1`
+      if test "$_G_count" -gt "$_G_path_prog_max"; then
+        # Best one so far, save it but keep looking for a better one
+        func_check_prog_result=$_G_path_prog
+        _G_path_prog_max=$_G_count
+      fi
+      # 10*(2^10) chars as input seems more than enough
+      test 10 -lt "$_G_count" && break
+    done
+    rm -f conftest.in conftest.tmp conftest.nl conftest.out
+  }
+
+  func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin
+  GREP=$func_path_progs_result
+}
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# All uppercase variable names are used for environment variables.  These
+# variables can be overridden by the user before calling a script that
+# uses them if a suitable command of that name is not already available
+# in the command search PATH.
+
+: ${CP="cp -f"}
+: ${ECHO="printf %s\n"}
+: ${EGREP="$GREP -E"}
+: ${FGREP="$GREP -F"}
+: ${LN_S="ln -s"}
+: ${MAKE="make"}
+: ${MKDIR="mkdir"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
+
+
+## -------------------- ##
+## Useful sed snippets. ##
+## -------------------- ##
+
+sed_dirname='s|/[^/]*$||'
+sed_basename='s|^.*/||'
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
+
+# Same as above, but do not quote variable references.
+sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution that turns a string into a regex matching for the
+# string literally.
+sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
+
+# Sed substitution that converts a w32 file name or path
+# that contains forward slashes, into one that contains
+# (escaped) backslashes.  A very naive implementation.
+sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
+
+# Re-'\' parameter expansions in output of sed_double_quote_subst that
+# were '\'-ed in input to the same.  If an odd number of '\' preceded a
+# '$' in input to sed_double_quote_subst, that '$' was protected from
+# expansion.  Since each input '\' is now two '\'s, look for any number
+# of runs of four '\'s followed by two '\'s and then a '$'.  '\' that '$'.
+_G_bs='\\'
+_G_bs2='\\\\'
+_G_bs4='\\\\\\\\'
+_G_dollar='\$'
+sed_double_backslash="\
+  s/$_G_bs4/&\\
+/g
+  s/^$_G_bs2$_G_dollar/$_G_bs&/
+  s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
+  s/\n//g"
+
+
+## ----------------- ##
+## Global variables. ##
+## ----------------- ##
+
+# Except for the global variables explicitly listed below, the following
+# functions in the '^func_' namespace, and the '^require_' namespace
+# variables initialised in the 'Resource management' section, sourcing
+# this file will not pollute your global namespace with anything
+# else. There's no portable way to scope variables in Bourne shell
+# though, so actually running these functions will sometimes place
+# results into a variable named after the function, and often use
+# temporary variables in the '^_G_' namespace. If you are careful to
+# avoid using those namespaces casually in your sourcing script, things
+# should continue to work as you expect. And, of course, you can freely
+# overwrite any of the functions or variables defined here before
+# calling anything to customize them.
+
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
+EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
+
+# Allow overriding, eg assuming that you follow the convention of
+# putting '$debug_cmd' at the start of all your functions, you can get
+# bash to show function call trace with:
+#
+#    debug_cmd='echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
+debug_cmd=${debug_cmd-":"}
+exit_cmd=:
+
+# By convention, finish your script with:
+#
+#    exit $exit_status
+#
+# so that you can set exit_status to non-zero if you want to indicate
+# something went wrong during execution without actually bailing out at
+# the point of failure.
+exit_status=$EXIT_SUCCESS
+
+# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
+# is ksh but when the shell is invoked as "sh" and the current value of
+# the _XPG environment variable is not equal to 1 (one), the special
+# positional parameter $0, within a function call, is the name of the
+# function.
+progpath=$0
+
+# The name of this program.
+progname=`$ECHO "$progpath" |$SED "$sed_basename"`
+
+# Make sure we have an absolute progpath for reexecution:
+case $progpath in
+  [\\/]*|[A-Za-z]:\\*) ;;
+  *[\\/]*)
+     progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
+     progdir=`cd "$progdir" && pwd`
+     progpath=$progdir/$progname
+     ;;
+  *)
+     _G_IFS=$IFS
+     IFS=${PATH_SEPARATOR-:}
+     for progdir in $PATH; do
+       IFS=$_G_IFS
+       test -x "$progdir/$progname" && break
+     done
+     IFS=$_G_IFS
+     test -n "$progdir" || progdir=`pwd`
+     progpath=$progdir/$progname
+     ;;
+esac
+
+
+## ----------------- ##
+## Standard options. ##
+## ----------------- ##
+
+# The following options affect the operation of the functions defined
+# below, and should be set appropriately depending on run-time para-
+# meters passed on the command line.
+
+opt_dry_run=false
+opt_quiet=false
+opt_verbose=false
+
+# Categories 'all' and 'none' are always available.  Append any others
+# you will pass as the first argument to func_warning from your own
+# code.
+warning_categories=
+
+# By default, display warnings according to 'opt_warning_types'.  Set
+# 'warning_func'  to ':' to elide all warnings, or func_fatal_error to
+# treat the next displayed warning as a fatal error.
+warning_func=func_warn_and_continue
+
+# Set to 'all' to display all warnings, 'none' to suppress all
+# warnings, or a space delimited list of some subset of
+# 'warning_categories' to display only the listed warnings.
+opt_warning_types=all
+
+
+## -------------------- ##
+## Resource management. ##
+## -------------------- ##
+
+# This section contains definitions for functions that each ensure a
+# particular resource (a file, or a non-empty configuration variable for
+# example) is available, and if appropriate to extract default values
+# from pertinent package files. Call them using their associated
+# 'require_*' variable to ensure that they are executed, at most, once.
+#
+# It's entirely deliberate that calling these functions can set
+# variables that don't obey the namespace limitations obeyed by the rest
+# of this file, in order that that they be as useful as possible to
+# callers.
+
+
+# require_term_colors
+# -------------------
+# Allow display of bold text on terminals that support it.
+require_term_colors=func_require_term_colors
+func_require_term_colors ()
+{
+    $debug_cmd
+
+    test -t 1 && {
+      # COLORTERM and USE_ANSI_COLORS environment variables take
+      # precedence, because most terminfo databases neglect to describe
+      # whether color sequences are supported.
+      test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
+
+      if test 1 = "$USE_ANSI_COLORS"; then
+        # Standard ANSI escape sequences
+        tc_reset=''
+        tc_bold='';   tc_standout=''
+        tc_red='';   tc_green=''
+        tc_blue='';  tc_cyan=''
+      else
+        # Otherwise trust the terminfo database after all.
+        test -n "`tput sgr0 2>/dev/null`" && {
+          tc_reset=`tput sgr0`
+          test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
+          tc_standout=$tc_bold
+          test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
+          test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
+          test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
+          test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
+          test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
+        }
+      fi
+    }
+
+    require_term_colors=:
+}
+
+
+## ----------------- ##
+## Function library. ##
+## ----------------- ##
+
+# This section contains a variety of useful functions to call in your
+# scripts. Take note of the portable wrappers for features provided by
+# some modern shells, which will fall back to slower equivalents on
+# less featureful shells.
+
+
+# func_append VAR VALUE
+# ---------------------
+# Append VALUE onto the existing contents of VAR.
+
+  # We should try to minimise forks, especially on Windows where they are
+  # unreasonably slow, so skip the feature probes when bash or zsh are
+  # being used:
+  if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
+    : ${_G_HAVE_ARITH_OP="yes"}
+    : ${_G_HAVE_XSI_OPS="yes"}
+    # The += operator was introduced in bash 3.1
+    case $BASH_VERSION in
+      [12].* | 3.0 | 3.0*) ;;
+      *)
+        : ${_G_HAVE_PLUSEQ_OP="yes"}
+        ;;
+    esac
+  fi
+
+  # _G_HAVE_PLUSEQ_OP
+  # Can be empty, in which case the shell is probed, "yes" if += is
+  # useable or anything else if it does not work.
+  test -z "$_G_HAVE_PLUSEQ_OP" \
+    && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
+    && _G_HAVE_PLUSEQ_OP=yes
+
+if test yes = "$_G_HAVE_PLUSEQ_OP"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_append ()
+  {
+    $debug_cmd
+
+    eval "$1+=\$2"
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_append ()
+  {
+    $debug_cmd
+
+    eval "$1=\$$1\$2"
+  }
+fi
+
+
+# func_append_quoted VAR VALUE
+# ----------------------------
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+if test yes = "$_G_HAVE_PLUSEQ_OP"; then
+  eval 'func_append_quoted ()
+  {
+    $debug_cmd
+
+    func_quote_for_eval "$2"
+    eval "$1+=\\ \$func_quote_for_eval_result"
+  }'
+else
+  func_append_quoted ()
+  {
+    $debug_cmd
+
+    func_quote_for_eval "$2"
+    eval "$1=\$$1\\ \$func_quote_for_eval_result"
+  }
+fi
+
+
+# func_append_uniq VAR VALUE
+# --------------------------
+# Append unique VALUE onto the existing contents of VAR, assuming
+# entries are delimited by the first character of VALUE.  For example:
+#
+#   func_append_uniq options " --another-option option-argument"
+#
+# will only append to $options if " --another-option option-argument "
+# is not already present somewhere in $options already (note spaces at
+# each end implied by leading space in second argument).
+func_append_uniq ()
+{
+    $debug_cmd
+
+    eval _G_current_value='`$ECHO $'$1'`'
+    _G_delim=`expr "$2" : '\(.\)'`
+
+    case $_G_delim$_G_current_value$_G_delim in
+      *"$2$_G_delim"*) ;;
+      *) func_append "$@" ;;
+    esac
+}
+
+
+# func_arith TERM...
+# ------------------
+# Set func_arith_result to the result of evaluating TERMs.
+  test -z "$_G_HAVE_ARITH_OP" \
+    && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
+    && _G_HAVE_ARITH_OP=yes
+
+if test yes = "$_G_HAVE_ARITH_OP"; then
+  eval 'func_arith ()
+  {
+    $debug_cmd
+
+    func_arith_result=$(( $* ))
+  }'
+else
+  func_arith ()
+  {
+    $debug_cmd
+
+    func_arith_result=`expr "$@"`
+  }
+fi
+
+
+# func_basename FILE
+# ------------------
+# Set func_basename_result to FILE with everything up to and including
+# the last / stripped.
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  # If this shell supports suffix pattern removal, then use it to avoid
+  # forking. Hide the definitions single quotes in case the shell chokes
+  # on unsupported syntax...
+  _b='func_basename_result=${1##*/}'
+  _d='case $1 in
+        */*) func_dirname_result=${1%/*}$2 ;;
+        *  ) func_dirname_result=$3        ;;
+      esac'
+
+else
+  # ...otherwise fall back to using sed.
+  _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
+  _d='func_dirname_result=`$ECHO "$1"  |$SED "$sed_dirname"`
+      if test "X$func_dirname_result" = "X$1"; then
+        func_dirname_result=$3
+      else
+        func_append func_dirname_result "$2"
+      fi'
+fi
+
+eval 'func_basename ()
+{
+    $debug_cmd
+
+    '"$_b"'
+}'
+
+
+# func_dirname FILE APPEND NONDIR_REPLACEMENT
+# -------------------------------------------
+# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+eval 'func_dirname ()
+{
+    $debug_cmd
+
+    '"$_d"'
+}'
+
+
+# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
+# --------------------------------------------------------
+# Perform func_basename and func_dirname in a single function
+# call:
+#   dirname:  Compute the dirname of FILE.  If nonempty,
+#             add APPEND to the result, otherwise set result
+#             to NONDIR_REPLACEMENT.
+#             value returned in "$func_dirname_result"
+#   basename: Compute filename of FILE.
+#             value retuned in "$func_basename_result"
+# For efficiency, we do not delegate to the functions above but instead
+# duplicate the functionality here.
+eval 'func_dirname_and_basename ()
+{
+    $debug_cmd
+
+    '"$_b"'
+    '"$_d"'
+}'
+
+
+# func_echo ARG...
+# ----------------
+# Echo program name prefixed message.
+func_echo ()
+{
+    $debug_cmd
+
+    _G_message=$*
+
+    func_echo_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_IFS
+      $ECHO "$progname: $_G_line"
+    done
+    IFS=$func_echo_IFS
+}
+
+
+# func_echo_all ARG...
+# --------------------
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*"
+}
+
+
+# func_echo_infix_1 INFIX ARG...
+# ------------------------------
+# Echo program name, followed by INFIX on the first line, with any
+# additional lines not showing INFIX.
+func_echo_infix_1 ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    _G_infix=$1; shift
+    _G_indent=$_G_infix
+    _G_prefix="$progname: $_G_infix: "
+    _G_message=$*
+
+    # Strip color escape sequences before counting printable length
+    for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
+    do
+      test -n "$_G_tc" && {
+        _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
+        _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
+      }
+    done
+    _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`"  " ## exclude from sc_prohibit_nested_quotes
+
+    func_echo_infix_1_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_infix_1_IFS
+      $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
+      _G_prefix=$_G_indent
+    done
+    IFS=$func_echo_infix_1_IFS
+}
+
+
+# func_error ARG...
+# -----------------
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    func_echo_infix_1 "  $tc_standout${tc_red}error$tc_reset" "$*" >&2
+}
+
+
+# func_fatal_error ARG...
+# -----------------------
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
+{
+    $debug_cmd
+
+    func_error "$*"
+    exit $EXIT_FAILURE
+}
+
+
+# func_grep EXPRESSION FILENAME
+# -----------------------------
+# Check whether EXPRESSION matches any line of FILENAME, without output.
+func_grep ()
+{
+    $debug_cmd
+
+    $GREP "$1" "$2" >/dev/null 2>&1
+}
+
+
+# func_len STRING
+# ---------------
+# Set func_len_result to the length of STRING. STRING may not
+# start with a hyphen.
+  test -z "$_G_HAVE_XSI_OPS" \
+    && (eval 'x=a/b/c;
+      test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+    && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_len ()
+  {
+    $debug_cmd
+
+    func_len_result=${#1}
+  }'
+else
+  func_len ()
+  {
+    $debug_cmd
+
+    func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
+  }
+fi
+
+
+# func_mkdir_p DIRECTORY-PATH
+# ---------------------------
+# Make sure the entire path to DIRECTORY-PATH is available.
+func_mkdir_p ()
+{
+    $debug_cmd
+
+    _G_directory_path=$1
+    _G_dir_list=
+
+    if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
+
+      # Protect directory names starting with '-'
+      case $_G_directory_path in
+        -*) _G_directory_path=./$_G_directory_path ;;
+      esac
+
+      # While some portion of DIR does not yet exist...
+      while test ! -d "$_G_directory_path"; do
+        # ...make a list in topmost first order.  Use a colon delimited
+	# list incase some portion of path contains whitespace.
+        _G_dir_list=$_G_directory_path:$_G_dir_list
+
+        # If the last portion added has no slash in it, the list is done
+        case $_G_directory_path in */*) ;; *) break ;; esac
+
+        # ...otherwise throw away the child directory and loop
+        _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
+      done
+      _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
+
+      func_mkdir_p_IFS=$IFS; IFS=:
+      for _G_dir in $_G_dir_list; do
+	IFS=$func_mkdir_p_IFS
+        # mkdir can fail with a 'File exist' error if two processes
+        # try to create one of the directories concurrently.  Don't
+        # stop in that case!
+        $MKDIR "$_G_dir" 2>/dev/null || :
+      done
+      IFS=$func_mkdir_p_IFS
+
+      # Bail out if we (or some other process) failed to create a directory.
+      test -d "$_G_directory_path" || \
+        func_fatal_error "Failed to create '$1'"
+    fi
+}
+
+
+# func_mktempdir [BASENAME]
+# -------------------------
+# Make a temporary directory that won't clash with other running
+# libtool processes, and avoids race conditions if possible.  If
+# given, BASENAME is the basename for that directory.
+func_mktempdir ()
+{
+    $debug_cmd
+
+    _G_template=${TMPDIR-/tmp}/${1-$progname}
+
+    if test : = "$opt_dry_run"; then
+      # Return a directory name, but don't create it in dry-run mode
+      _G_tmpdir=$_G_template-$$
+    else
+
+      # If mktemp works, use that first and foremost
+      _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
+
+      if test ! -d "$_G_tmpdir"; then
+        # Failing that, at least try and use $RANDOM to avoid a race
+        _G_tmpdir=$_G_template-${RANDOM-0}$$
+
+        func_mktempdir_umask=`umask`
+        umask 0077
+        $MKDIR "$_G_tmpdir"
+        umask $func_mktempdir_umask
+      fi
+
+      # If we're not in dry-run mode, bomb out on failure
+      test -d "$_G_tmpdir" || \
+        func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
+    fi
+
+    $ECHO "$_G_tmpdir"
+}
+
+
+# func_normal_abspath PATH
+# ------------------------
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+func_normal_abspath ()
+{
+    $debug_cmd
+
+    # These SED scripts presuppose an absolute path with a trailing slash.
+    _G_pathcar='s|^/\([^/]*\).*$|\1|'
+    _G_pathcdr='s|^/[^/]*||'
+    _G_removedotparts=':dotsl
+		s|/\./|/|g
+		t dotsl
+		s|/\.$|/|'
+    _G_collapseslashes='s|/\{1,\}|/|g'
+    _G_finalslash='s|/*$|/|'
+
+    # Start from root dir and reassemble the path.
+    func_normal_abspath_result=
+    func_normal_abspath_tpath=$1
+    func_normal_abspath_altnamespace=
+    case $func_normal_abspath_tpath in
+      "")
+        # Empty path, that just means $cwd.
+        func_stripname '' '/' "`pwd`"
+        func_normal_abspath_result=$func_stripname_result
+        return
+        ;;
+      # The next three entries are used to spot a run of precisely
+      # two leading slashes without using negated character classes;
+      # we take advantage of case's first-match behaviour.
+      ///*)
+        # Unusual form of absolute path, do nothing.
+        ;;
+      //*)
+        # Not necessarily an ordinary path; POSIX reserves leading '//'
+        # and for example Cygwin uses it to access remote file shares
+        # over CIFS/SMB, so we conserve a leading double slash if found.
+        func_normal_abspath_altnamespace=/
+        ;;
+      /*)
+        # Absolute path, do nothing.
+        ;;
+      *)
+        # Relative path, prepend $cwd.
+        func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+        ;;
+    esac
+
+    # Cancel out all the simple stuff to save iterations.  We also want
+    # the path to end with a slash for ease of parsing, so make sure
+    # there is one (and only one) here.
+    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
+    while :; do
+      # Processed it all yet?
+      if test / = "$func_normal_abspath_tpath"; then
+        # If we ascended to the root using ".." the result may be empty now.
+        if test -z "$func_normal_abspath_result"; then
+          func_normal_abspath_result=/
+        fi
+        break
+      fi
+      func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_pathcar"`
+      func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_pathcdr"`
+      # Figure out what to do with it
+      case $func_normal_abspath_tcomponent in
+        "")
+          # Trailing empty path component, ignore it.
+          ;;
+        ..)
+          # Parent dir; strip last assembled component from result.
+          func_dirname "$func_normal_abspath_result"
+          func_normal_abspath_result=$func_dirname_result
+          ;;
+        *)
+          # Actual path component, append it.
+          func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
+          ;;
+      esac
+    done
+    # Restore leading double-slash if one was found on entry.
+    func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+
+# func_notquiet ARG...
+# --------------------
+# Echo program name prefixed message only when not in quiet mode.
+func_notquiet ()
+{
+    $debug_cmd
+
+    $opt_quiet || func_echo ${1+"$@"}
+
+    # A bug in bash halts the script if the last line of a function
+    # fails when set -e is in force, so we need another command to
+    # work around that:
+    :
+}
+
+
+# func_relative_path SRCDIR DSTDIR
+# --------------------------------
+# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
+func_relative_path ()
+{
+    $debug_cmd
+
+    func_relative_path_result=
+    func_normal_abspath "$1"
+    func_relative_path_tlibdir=$func_normal_abspath_result
+    func_normal_abspath "$2"
+    func_relative_path_tbindir=$func_normal_abspath_result
+
+    # Ascend the tree starting from libdir
+    while :; do
+      # check if we have found a prefix of bindir
+      case $func_relative_path_tbindir in
+        $func_relative_path_tlibdir)
+          # found an exact match
+          func_relative_path_tcancelled=
+          break
+          ;;
+        $func_relative_path_tlibdir*)
+          # found a matching prefix
+          func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+          func_relative_path_tcancelled=$func_stripname_result
+          if test -z "$func_relative_path_result"; then
+            func_relative_path_result=.
+          fi
+          break
+          ;;
+        *)
+          func_dirname $func_relative_path_tlibdir
+          func_relative_path_tlibdir=$func_dirname_result
+          if test -z "$func_relative_path_tlibdir"; then
+            # Have to descend all the way to the root!
+            func_relative_path_result=../$func_relative_path_result
+            func_relative_path_tcancelled=$func_relative_path_tbindir
+            break
+          fi
+          func_relative_path_result=../$func_relative_path_result
+          ;;
+      esac
+    done
+
+    # Now calculate path; take care to avoid doubling-up slashes.
+    func_stripname '' '/' "$func_relative_path_result"
+    func_relative_path_result=$func_stripname_result
+    func_stripname '/' '/' "$func_relative_path_tcancelled"
+    if test -n "$func_stripname_result"; then
+      func_append func_relative_path_result "/$func_stripname_result"
+    fi
+
+    # Normalisation. If bindir is libdir, return '.' else relative path.
+    if test -n "$func_relative_path_result"; then
+      func_stripname './' '' "$func_relative_path_result"
+      func_relative_path_result=$func_stripname_result
+    fi
+
+    test -n "$func_relative_path_result" || func_relative_path_result=.
+
+    :
+}
+
+
+# func_quote_for_eval ARG...
+# --------------------------
+# Aesthetically quote ARGs to be evaled later.
+# This function returns two values:
+#   i) func_quote_for_eval_result
+#      double-quoted, suitable for a subsequent eval
+#  ii) func_quote_for_eval_unquoted_result
+#      has all characters that are still active within double
+#      quotes backslashified.
+func_quote_for_eval ()
+{
+    $debug_cmd
+
+    func_quote_for_eval_unquoted_result=
+    func_quote_for_eval_result=
+    while test 0 -lt $#; do
+      case $1 in
+        *[\\\`\"\$]*)
+	  _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
+        *)
+          _G_unquoted_arg=$1 ;;
+      esac
+      if test -n "$func_quote_for_eval_unquoted_result"; then
+	func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
+      else
+        func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
+      fi
+
+      case $_G_unquoted_arg in
+        # Double-quote args containing shell metacharacters to delay
+        # word splitting, command substitution and variable expansion
+        # for a subsequent eval.
+        # Many Bourne shells cannot handle close brackets correctly
+        # in scan sets, so we specify it separately.
+        *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+          _G_quoted_arg=\"$_G_unquoted_arg\"
+          ;;
+        *)
+          _G_quoted_arg=$_G_unquoted_arg
+	  ;;
+      esac
+
+      if test -n "$func_quote_for_eval_result"; then
+	func_append func_quote_for_eval_result " $_G_quoted_arg"
+      else
+        func_append func_quote_for_eval_result "$_G_quoted_arg"
+      fi
+      shift
+    done
+}
+
+
+# func_quote_for_expand ARG
+# -------------------------
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
+{
+    $debug_cmd
+
+    case $1 in
+      *[\\\`\"]*)
+	_G_arg=`$ECHO "$1" | $SED \
+	    -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
+      *)
+        _G_arg=$1 ;;
+    esac
+
+    case $_G_arg in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting and command substitution for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        _G_arg=\"$_G_arg\"
+        ;;
+    esac
+
+    func_quote_for_expand_result=$_G_arg
+}
+
+
+# func_stripname PREFIX SUFFIX NAME
+# ---------------------------------
+# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_stripname ()
+  {
+    $debug_cmd
+
+    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+    # positional parameters, so assign one to ordinary variable first.
+    func_stripname_result=$3
+    func_stripname_result=${func_stripname_result#"$1"}
+    func_stripname_result=${func_stripname_result%"$2"}
+  }'
+else
+  func_stripname ()
+  {
+    $debug_cmd
+
+    case $2 in
+      .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
+      *)  func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
+    esac
+  }
+fi
+
+
+# func_show_eval CMD [FAIL_EXP]
+# -----------------------------
+# Unless opt_quiet is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+    $debug_cmd
+
+    _G_cmd=$1
+    _G_fail_exp=${2-':'}
+
+    func_quote_for_expand "$_G_cmd"
+    eval "func_notquiet $func_quote_for_expand_result"
+
+    $opt_dry_run || {
+      eval "$_G_cmd"
+      _G_status=$?
+      if test 0 -ne "$_G_status"; then
+	eval "(exit $_G_status); $_G_fail_exp"
+      fi
+    }
+}
+
+
+# func_show_eval_locale CMD [FAIL_EXP]
+# ------------------------------------
+# Unless opt_quiet is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.  Use the saved locale for evaluation.
+func_show_eval_locale ()
+{
+    $debug_cmd
+
+    _G_cmd=$1
+    _G_fail_exp=${2-':'}
+
+    $opt_quiet || {
+      func_quote_for_expand "$_G_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
+
+    $opt_dry_run || {
+      eval "$_G_user_locale
+	    $_G_cmd"
+      _G_status=$?
+      eval "$_G_safe_locale"
+      if test 0 -ne "$_G_status"; then
+	eval "(exit $_G_status); $_G_fail_exp"
+      fi
+    }
+}
+
+
+# func_tr_sh
+# ----------
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result.  All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+    $debug_cmd
+
+    case $1 in
+    [0-9]* | *[!a-zA-Z0-9_]*)
+      func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
+      ;;
+    * )
+      func_tr_sh_result=$1
+      ;;
+    esac
+}
+
+
+# func_verbose ARG...
+# -------------------
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+    $debug_cmd
+
+    $opt_verbose && func_echo "$*"
+
+    :
+}
+
+
+# func_warn_and_continue ARG...
+# -----------------------------
+# Echo program name prefixed warning message to standard error.
+func_warn_and_continue ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
+}
+
+
+# func_warning CATEGORY ARG...
+# ----------------------------
+# Echo program name prefixed warning message to standard error. Warning
+# messages can be filtered according to CATEGORY, where this function
+# elides messages where CATEGORY is not listed in the global variable
+# 'opt_warning_types'.
+func_warning ()
+{
+    $debug_cmd
+
+    # CATEGORY must be in the warning_categories list!
+    case " $warning_categories " in
+      *" $1 "*) ;;
+      *) func_internal_error "invalid warning category '$1'" ;;
+    esac
+
+    _G_category=$1
+    shift
+
+    case " $opt_warning_types " in
+      *" $_G_category "*) $warning_func ${1+"$@"} ;;
+    esac
+}
+
+
+# func_sort_ver VER1 VER2
+# -----------------------
+# 'sort -V' is not generally available.
+# Note this deviates from the version comparison in automake
+# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
+# but this should suffice as we won't be specifying old
+# version formats or redundant trailing .0 in bootstrap.conf.
+# If we did want full compatibility then we should probably
+# use m4_version_compare from autoconf.
+func_sort_ver ()
+{
+    $debug_cmd
+
+    printf '%s\n%s\n' "$1" "$2" \
+      | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
+}
+
+# func_lt_ver PREV CURR
+# ---------------------
+# Return true if PREV and CURR are in the correct order according to
+# func_sort_ver, otherwise false.  Use it like this:
+#
+#  func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
+func_lt_ver ()
+{
+    $debug_cmd
+
+    test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+#! /bin/sh
+
+# Set a version string for this script.
+scriptversion=2015-10-07.11; # UTC
+
+# A portable, pluggable option parser for Bourne shell.
+# Written by Gary V. Vaughan, 2010
+
+# Copyright (C) 2010-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# This file is a library for parsing options in your shell scripts along
+# with assorted other useful supporting features that you can make use
+# of too.
+#
+# For the simplest scripts you might need only:
+#
+#   #!/bin/sh
+#   . relative/path/to/funclib.sh
+#   . relative/path/to/options-parser
+#   scriptversion=1.0
+#   func_options ${1+"$@"}
+#   eval set dummy "$func_options_result"; shift
+#   ...rest of your script...
+#
+# In order for the '--version' option to work, you will need to have a
+# suitably formatted comment like the one at the top of this file
+# starting with '# Written by ' and ending with '# warranty; '.
+#
+# For '-h' and '--help' to work, you will also need a one line
+# description of your script's purpose in a comment directly above the
+# '# Written by ' line, like the one at the top of this file.
+#
+# The default options also support '--debug', which will turn on shell
+# execution tracing (see the comment above debug_cmd below for another
+# use), and '--verbose' and the func_verbose function to allow your script
+# to display verbose messages only when your user has specified
+# '--verbose'.
+#
+# After sourcing this file, you can plug processing for additional
+# options by amending the variables from the 'Configuration' section
+# below, and following the instructions in the 'Option parsing'
+# section further down.
+
+## -------------- ##
+## Configuration. ##
+## -------------- ##
+
+# You should override these variables in your script after sourcing this
+# file so that they reflect the customisations you have added to the
+# option parser.
+
+# The usage line for option parsing errors and the start of '-h' and
+# '--help' output messages. You can embed shell variables for delayed
+# expansion at the time the message is displayed, but you will need to
+# quote other shell meta-characters carefully to prevent them being
+# expanded when the contents are evaled.
+usage='$progpath [OPTION]...'
+
+# Short help message in response to '-h' and '--help'.  Add to this or
+# override it after sourcing this library to reflect the full set of
+# options your script accepts.
+usage_message="\
+       --debug        enable verbose shell tracing
+   -W, --warnings=CATEGORY
+                      report the warnings falling in CATEGORY [all]
+   -v, --verbose      verbosely report processing
+       --version      print version information and exit
+   -h, --help         print short or long help message and exit
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+long_help_message="
+Warning categories include:
+       'all'          show all warnings
+       'none'         turn off all the warnings
+       'error'        warnings are treated as fatal errors"
+
+# Help message printed before fatal option parsing errors.
+fatal_help="Try '\$progname --help' for more information."
+
+
+
+## ------------------------- ##
+## Hook function management. ##
+## ------------------------- ##
+
+# This section contains functions for adding, removing, and running hooks
+# to the main code.  A hook is just a named list of of function, that can
+# be run in order later on.
+
+# func_hookable FUNC_NAME
+# -----------------------
+# Declare that FUNC_NAME will run hooks added with
+# 'func_add_hook FUNC_NAME ...'.
+func_hookable ()
+{
+    $debug_cmd
+
+    func_append hookable_fns " $1"
+}
+
+
+# func_add_hook FUNC_NAME HOOK_FUNC
+# ---------------------------------
+# Request that FUNC_NAME call HOOK_FUNC before it returns.  FUNC_NAME must
+# first have been declared "hookable" by a call to 'func_hookable'.
+func_add_hook ()
+{
+    $debug_cmd
+
+    case " $hookable_fns " in
+      *" $1 "*) ;;
+      *) func_fatal_error "'$1' does not accept hook functions." ;;
+    esac
+
+    eval func_append ${1}_hooks '" $2"'
+}
+
+
+# func_remove_hook FUNC_NAME HOOK_FUNC
+# ------------------------------------
+# Remove HOOK_FUNC from the list of functions called by FUNC_NAME.
+func_remove_hook ()
+{
+    $debug_cmd
+
+    eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
+}
+
+
+# func_run_hooks FUNC_NAME [ARG]...
+# ---------------------------------
+# Run all hook functions registered to FUNC_NAME.
+# It is assumed that the list of hook functions contains nothing more
+# than a whitespace-delimited list of legal shell function names, and
+# no effort is wasted trying to catch shell meta-characters or preserve
+# whitespace.
+func_run_hooks ()
+{
+    $debug_cmd
+
+    _G_rc_run_hooks=false
+
+    case " $hookable_fns " in
+      *" $1 "*) ;;
+      *) func_fatal_error "'$1' does not support hook funcions.n" ;;
+    esac
+
+    eval _G_hook_fns=\$$1_hooks; shift
+
+    for _G_hook in $_G_hook_fns; do
+      if eval $_G_hook '"$@"'; then
+        # store returned options list back into positional
+        # parameters for next 'cmd' execution.
+        eval _G_hook_result=\$${_G_hook}_result
+        eval set dummy "$_G_hook_result"; shift
+        _G_rc_run_hooks=:
+      fi
+    done
+
+    $_G_rc_run_hooks && func_run_hooks_result=$_G_hook_result
+}
+
+
+
+## --------------- ##
+## Option parsing. ##
+## --------------- ##
+
+# In order to add your own option parsing hooks, you must accept the
+# full positional parameter list in your hook function, you may remove/edit
+# any options that you action, and then pass back the remaining unprocessed
+# options in '_result', escaped suitably for
+# 'eval'.  In this case you also must return $EXIT_SUCCESS to let the
+# hook's caller know that it should pay attention to
+# '_result'.  Returning $EXIT_FAILURE signalizes that
+# arguments are left untouched by the hook and therefore caller will ignore the
+# result variable.
+#
+# Like this:
+#
+#    my_options_prep ()
+#    {
+#        $debug_cmd
+#
+#        # Extend the existing usage message.
+#        usage_message=$usage_message'
+#      -s, --silent       don'\''t print informational messages
+#    '
+#        # No change in '$@' (ignored completely by this hook).  There is
+#        # no need to do the equivalent (but slower) action:
+#        # func_quote_for_eval ${1+"$@"}
+#        # my_options_prep_result=$func_quote_for_eval_result
+#        false
+#    }
+#    func_add_hook func_options_prep my_options_prep
+#
+#
+#    my_silent_option ()
+#    {
+#        $debug_cmd
+#
+#        args_changed=false
+#
+#        # Note that for efficiency, we parse as many options as we can
+#        # recognise in a loop before passing the remainder back to the
+#        # caller on the first unrecognised argument we encounter.
+#        while test $# -gt 0; do
+#          opt=$1; shift
+#          case $opt in
+#            --silent|-s) opt_silent=:
+#                         args_changed=:
+#                         ;;
+#            # Separate non-argument short options:
+#            -s*)         func_split_short_opt "$_G_opt"
+#                         set dummy "$func_split_short_opt_name" \
+#                             "-$func_split_short_opt_arg" ${1+"$@"}
+#                         shift
+#                         args_changed=:
+#                         ;;
+#            *)           # Make sure the first unrecognised option "$_G_opt"
+#                         # is added back to "$@", we could need that later
+#                         # if $args_changed is true.
+#                         set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+#          esac
+#        done
+#
+#        if $args_changed; then
+#          func_quote_for_eval ${1+"$@"}
+#          my_silent_option_result=$func_quote_for_eval_result
+#        fi
+#
+#        $args_changed
+#    }
+#    func_add_hook func_parse_options my_silent_option
+#
+#
+#    my_option_validation ()
+#    {
+#        $debug_cmd
+#
+#        $opt_silent && $opt_verbose && func_fatal_help "\
+#    '--silent' and '--verbose' options are mutually exclusive."
+#
+#        false
+#    }
+#    func_add_hook func_validate_options my_option_validation
+#
+# You'll also need to manually amend $usage_message to reflect the extra
+# options you parse.  It's preferable to append if you can, so that
+# multiple option parsing hooks can be added safely.
+
+
+# func_options_finish [ARG]...
+# ----------------------------
+# Finishing the option parse loop (call 'func_options' hooks ATM).
+func_options_finish ()
+{
+    $debug_cmd
+
+    _G_func_options_finish_exit=false
+    if func_run_hooks func_options ${1+"$@"}; then
+      func_options_finish_result=$func_run_hooks_result
+      _G_func_options_finish_exit=:
+    fi
+
+    $_G_func_options_finish_exit
+}
+
+
+# func_options [ARG]...
+# ---------------------
+# All the functions called inside func_options are hookable. See the
+# individual implementations for details.
+func_hookable func_options
+func_options ()
+{
+    $debug_cmd
+
+    _G_rc_options=false
+
+    for my_func in options_prep parse_options validate_options options_finish
+    do
+      if eval func_$my_func '${1+"$@"}'; then
+        eval _G_res_var='$'"func_${my_func}_result"
+        eval set dummy "$_G_res_var" ; shift
+        _G_rc_options=:
+      fi
+    done
+
+    # Save modified positional parameters for caller.  As a top-level
+    # options-parser function we always need to set the 'func_options_result'
+    # variable (regardless the $_G_rc_options value).
+    if $_G_rc_options; then
+      func_options_result=$_G_res_var
+    else
+      func_quote_for_eval ${1+"$@"}
+      func_options_result=$func_quote_for_eval_result
+    fi
+
+    $_G_rc_options
+}
+
+
+# func_options_prep [ARG]...
+# --------------------------
+# All initialisations required before starting the option parse loop.
+# Note that when calling hook functions, we pass through the list of
+# positional parameters.  If a hook function modifies that list, and
+# needs to propagate that back to rest of this script, then the complete
+# modified list must be put in 'func_run_hooks_result' before
+# returning $EXIT_SUCCESS (otherwise $EXIT_FAILURE is returned).
+func_hookable func_options_prep
+func_options_prep ()
+{
+    $debug_cmd
+
+    # Option defaults:
+    opt_verbose=false
+    opt_warning_types=
+
+    _G_rc_options_prep=false
+    if func_run_hooks func_options_prep ${1+"$@"}; then
+      _G_rc_options_prep=:
+      # save modified positional parameters for caller
+      func_options_prep_result=$func_run_hooks_result
+    fi
+
+    $_G_rc_options_prep
+}
+
+
+# func_parse_options [ARG]...
+# ---------------------------
+# The main option parsing loop.
+func_hookable func_parse_options
+func_parse_options ()
+{
+    $debug_cmd
+
+    func_parse_options_result=
+
+    _G_rc_parse_options=false
+    # this just eases exit handling
+    while test $# -gt 0; do
+      # Defer to hook functions for initial option parsing, so they
+      # get priority in the event of reusing an option name.
+      if func_run_hooks func_parse_options ${1+"$@"}; then
+        eval set dummy "$func_run_hooks_result"; shift
+        _G_rc_parse_options=:
+      fi
+
+      # Break out of the loop if we already parsed every option.
+      test $# -gt 0 || break
+
+      _G_match_parse_options=:
+      _G_opt=$1
+      shift
+      case $_G_opt in
+        --debug|-x)   debug_cmd='set -x'
+                      func_echo "enabling shell trace mode"
+                      $debug_cmd
+                      ;;
+
+        --no-warnings|--no-warning|--no-warn)
+                      set dummy --warnings none ${1+"$@"}
+                      shift
+		      ;;
+
+        --warnings|--warning|-W)
+                      if test $# = 0 && func_missing_arg $_G_opt; then
+                        _G_rc_parse_options=:
+                        break
+                      fi
+                      case " $warning_categories $1" in
+                        *" $1 "*)
+                          # trailing space prevents matching last $1 above
+                          func_append_uniq opt_warning_types " $1"
+                          ;;
+                        *all)
+                          opt_warning_types=$warning_categories
+                          ;;
+                        *none)
+                          opt_warning_types=none
+                          warning_func=:
+                          ;;
+                        *error)
+                          opt_warning_types=$warning_categories
+                          warning_func=func_fatal_error
+                          ;;
+                        *)
+                          func_fatal_error \
+                             "unsupported warning category: '$1'"
+                          ;;
+                      esac
+                      shift
+                      ;;
+
+        --verbose|-v) opt_verbose=: ;;
+        --version)    func_version ;;
+        -\?|-h)       func_usage ;;
+        --help)       func_help ;;
+
+	# Separate optargs to long options (plugins may need this):
+	--*=*)        func_split_equals "$_G_opt"
+	              set dummy "$func_split_equals_lhs" \
+                          "$func_split_equals_rhs" ${1+"$@"}
+                      shift
+                      ;;
+
+       # Separate optargs to short options:
+        -W*)
+                      func_split_short_opt "$_G_opt"
+                      set dummy "$func_split_short_opt_name" \
+                          "$func_split_short_opt_arg" ${1+"$@"}
+                      shift
+                      ;;
+
+        # Separate non-argument short options:
+        -\?*|-h*|-v*|-x*)
+                      func_split_short_opt "$_G_opt"
+                      set dummy "$func_split_short_opt_name" \
+                          "-$func_split_short_opt_arg" ${1+"$@"}
+                      shift
+                      ;;
+
+        --)           _G_rc_parse_options=: ; break ;;
+        -*)           func_fatal_help "unrecognised option: '$_G_opt'" ;;
+        *)            set dummy "$_G_opt" ${1+"$@"}; shift
+                      _G_match_parse_options=false
+                      break
+                      ;;
+      esac
+
+      $_G_match_parse_options && _G_rc_parse_options=:
+    done
+
+
+    if $_G_rc_parse_options; then
+      # save modified positional parameters for caller
+      func_quote_for_eval ${1+"$@"}
+      func_parse_options_result=$func_quote_for_eval_result
+    fi
+
+    $_G_rc_parse_options
+}
+
+
+# func_validate_options [ARG]...
+# ------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+func_hookable func_validate_options
+func_validate_options ()
+{
+    $debug_cmd
+
+    _G_rc_validate_options=false
+
+    # Display all warnings if -W was not given.
+    test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
+
+    if func_run_hooks func_validate_options ${1+"$@"}; then
+      # save modified positional parameters for caller
+      func_validate_options_result=$func_run_hooks_result
+      _G_rc_validate_options=:
+    fi
+
+    # Bail if the options were screwed!
+    $exit_cmd $EXIT_FAILURE
+
+    $_G_rc_validate_options
+}
+
+
+
+## ----------------- ##
+## Helper functions. ##
+## ----------------- ##
+
+# This section contains the helper functions used by the rest of the
+# hookable option parser framework in ascii-betical order.
+
+
+# func_fatal_help ARG...
+# ----------------------
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
+{
+    $debug_cmd
+
+    eval \$ECHO \""Usage: $usage"\"
+    eval \$ECHO \""$fatal_help"\"
+    func_error ${1+"$@"}
+    exit $EXIT_FAILURE
+}
+
+
+# func_help
+# ---------
+# Echo long help message to standard output and exit.
+func_help ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "$long_help_message"
+    exit 0
+}
+
+
+# func_missing_arg ARGNAME
+# ------------------------
+# Echo program name prefixed message to standard error and set global
+# exit_cmd.
+func_missing_arg ()
+{
+    $debug_cmd
+
+    func_error "Missing argument for '$1'."
+    exit_cmd=exit
+}
+
+
+# func_split_equals STRING
+# ------------------------
+# Set func_split_equals_lhs and func_split_equals_rhs shell variables after
+# splitting STRING at the '=' sign.
+test -z "$_G_HAVE_XSI_OPS" \
+    && (eval 'x=a/b/c;
+      test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+    && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_split_equals ()
+  {
+      $debug_cmd
+
+      func_split_equals_lhs=${1%%=*}
+      func_split_equals_rhs=${1#*=}
+      test "x$func_split_equals_lhs" = "x$1" \
+        && func_split_equals_rhs=
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_split_equals ()
+  {
+      $debug_cmd
+
+      func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
+      func_split_equals_rhs=
+      test "x$func_split_equals_lhs" = "x$1" \
+        || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
+  }
+fi #func_split_equals
+
+
+# func_split_short_opt SHORTOPT
+# -----------------------------
+# Set func_split_short_opt_name and func_split_short_opt_arg shell
+# variables after splitting SHORTOPT after the 2nd character.
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_split_short_opt ()
+  {
+      $debug_cmd
+
+      func_split_short_opt_arg=${1#??}
+      func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_split_short_opt ()
+  {
+      $debug_cmd
+
+      func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
+      func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
+  }
+fi #func_split_short_opt
+
+
+# func_usage
+# ----------
+# Echo short help message to standard output and exit.
+func_usage ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
+    exit 0
+}
+
+
+# func_usage_message
+# ------------------
+# Echo short help message to standard output.
+func_usage_message ()
+{
+    $debug_cmd
+
+    eval \$ECHO \""Usage: $usage"\"
+    echo
+    $SED -n 's|^# ||
+        /^Written by/{
+          x;p;x
+        }
+	h
+	/^Written by/q' < "$progpath"
+    echo
+    eval \$ECHO \""$usage_message"\"
+}
+
+
+# func_version
+# ------------
+# Echo version message to standard output and exit.
+func_version ()
+{
+    $debug_cmd
+
+    printf '%s\n' "$progname $scriptversion"
+    $SED -n '
+        /(C)/!b go
+        :more
+        /\./!{
+          N
+          s|\n# | |
+          b more
+        }
+        :go
+        /^# Written by /,/# warranty; / {
+          s|^# ||
+          s|^# *$||
+          s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
+          p
+        }
+        /^# Written by / {
+          s|^# ||
+          p
+        }
+        /^warranty; /q' < "$progpath"
+
+    exit $?
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+
+# Set a version string.
+scriptversion='(GNU libtool) 2.4.6'
+
+
+# func_echo ARG...
+# ----------------
+# Libtool also displays the current mode in messages, so override
+# funclib.sh func_echo with this custom definition.
+func_echo ()
+{
+    $debug_cmd
+
+    _G_message=$*
+
+    func_echo_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_IFS
+      $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line"
+    done
+    IFS=$func_echo_IFS
+}
+
+
+# func_warning ARG...
+# -------------------
+# Libtool warnings are not categorized, so override funclib.sh
+# func_warning with this simpler definition.
+func_warning ()
+{
+    $debug_cmd
+
+    $warning_func ${1+"$@"}
+}
+
+
+## ---------------- ##
+## Options parsing. ##
+## ---------------- ##
+
+# Hook in the functions to make sure our own options are parsed during
+# the option parsing loop.
+
+usage='$progpath [OPTION]... [MODE-ARG]...'
+
+# Short help message in response to '-h'.
+usage_message="Options:
+       --config             show all configuration variables
+       --debug              enable verbose shell tracing
+   -n, --dry-run            display commands without modifying any files
+       --features           display basic configuration information and exit
+       --mode=MODE          use operation mode MODE
+       --no-warnings        equivalent to '-Wnone'
+       --preserve-dup-deps  don't remove duplicate dependency libraries
+       --quiet, --silent    don't print informational messages
+       --tag=TAG            use configuration variables from tag TAG
+   -v, --verbose            print more informational messages than default
+       --version            print version information
+   -W, --warnings=CATEGORY  report the warnings falling in CATEGORY [all]
+   -h, --help, --help-all   print short, long, or detailed help message
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+func_help ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "$long_help_message
+
+MODE must be one of the following:
+
+       clean           remove files from the build directory
+       compile         compile a source file into a libtool object
+       execute         automatically set library path, then run a program
+       finish          complete the installation of libtool libraries
+       install         install libraries or executables
+       link            create a library or an executable
+       uninstall       remove libraries from an installed directory
+
+MODE-ARGS vary depending on the MODE.  When passed as first option,
+'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that.
+Try '$progname --help --mode=MODE' for a more detailed description of MODE.
+
+When reporting a bug, please describe a test case to reproduce it and
+include the following information:
+
+       host-triplet:   $host
+       shell:          $SHELL
+       compiler:       $LTCC
+       compiler flags: $LTCFLAGS
+       linker:         $LD (gnu? $with_gnu_ld)
+       version:        $progname $scriptversion Debian-2.4.6-15
+       automake:       `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
+       autoconf:       `($AUTOCONF --version) 2>/dev/null |$SED 1q`
+
+Report bugs to .
+GNU libtool home page: .
+General help using GNU software: ."
+    exit 0
+}
+
+
+# func_lo2o OBJECT-NAME
+# ---------------------
+# Transform OBJECT-NAME from a '.lo' suffix to the platform specific
+# object suffix.
+
+lo2o=s/\\.lo\$/.$objext/
+o2lo=s/\\.$objext\$/.lo/
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_lo2o ()
+  {
+    case $1 in
+      *.lo) func_lo2o_result=${1%.lo}.$objext ;;
+      *   ) func_lo2o_result=$1               ;;
+    esac
+  }'
+
+  # func_xform LIBOBJ-OR-SOURCE
+  # ---------------------------
+  # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise)
+  # suffix to a '.lo' libtool-object suffix.
+  eval 'func_xform ()
+  {
+    func_xform_result=${1%.*}.lo
+  }'
+else
+  # ...otherwise fall back to using sed.
+  func_lo2o ()
+  {
+    func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"`
+  }
+
+  func_xform ()
+  {
+    func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'`
+  }
+fi
+
+
+# func_fatal_configuration ARG...
+# -------------------------------
+# Echo program name prefixed message to standard error, followed by
+# a configuration failure hint, and exit.
+func_fatal_configuration ()
+{
+    func__fatal_error ${1+"$@"} \
+      "See the $PACKAGE documentation for more information." \
+      "Fatal configuration error."
+}
+
+
+# func_config
+# -----------
+# Display the configuration for all the tags in this script.
+func_config ()
+{
+    re_begincf='^# ### BEGIN LIBTOOL'
+    re_endcf='^# ### END LIBTOOL'
+
+    # Default configuration.
+    $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
+
+    # Now print the configurations for the tags.
+    for tagname in $taglist; do
+      $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
+    done
+
+    exit $?
+}
+
+
+# func_features
+# -------------
+# Display the features supported by this script.
+func_features ()
+{
+    echo "host: $host"
+    if test yes = "$build_libtool_libs"; then
+      echo "enable shared libraries"
+    else
+      echo "disable shared libraries"
+    fi
+    if test yes = "$build_old_libs"; then
+      echo "enable static libraries"
+    else
+      echo "disable static libraries"
+    fi
+
+    exit $?
+}
+
+
+# func_enable_tag TAGNAME
+# -----------------------
+# Verify that TAGNAME is valid, and either flag an error and exit, or
+# enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
+# variable here.
+func_enable_tag ()
+{
+    # Global variable:
+    tagname=$1
+
+    re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
+    re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
+    sed_extractcf=/$re_begincf/,/$re_endcf/p
+
+    # Validate tagname.
+    case $tagname in
+      *[!-_A-Za-z0-9,/]*)
+        func_fatal_error "invalid tag name: $tagname"
+        ;;
+    esac
+
+    # Don't test for the "default" C tag, as we know it's
+    # there but not specially marked.
+    case $tagname in
+        CC) ;;
+    *)
+        if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
+	  taglist="$taglist $tagname"
+
+	  # Evaluate the configuration.  Be careful to quote the path
+	  # and the sed script, to avoid splitting on whitespace, but
+	  # also don't use non-portable quotes within backquotes within
+	  # quotes we have to do it in 2 steps:
+	  extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
+	  eval "$extractedcf"
+        else
+	  func_error "ignoring unknown tag $tagname"
+        fi
+        ;;
+    esac
+}
+
+
+# func_check_version_match
+# ------------------------
+# Ensure that we are using m4 macros, and libtool script from the same
+# release of libtool.
+func_check_version_match ()
+{
+    if test "$package_revision" != "$macro_revision"; then
+      if test "$VERSION" != "$macro_version"; then
+        if test -z "$macro_version"; then
+          cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from an older release.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+        else
+          cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+        fi
+      else
+        cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
+$progname: but the definition of this LT_INIT comes from revision $macro_revision.
+$progname: You should recreate aclocal.m4 with macros from revision $package_revision
+$progname: of $PACKAGE $VERSION and run autoconf again.
+_LT_EOF
+      fi
+
+      exit $EXIT_MISMATCH
+    fi
+}
+
+
+# libtool_options_prep [ARG]...
+# -----------------------------
+# Preparation for options parsed by libtool.
+libtool_options_prep ()
+{
+    $debug_mode
+
+    # Option defaults:
+    opt_config=false
+    opt_dlopen=
+    opt_dry_run=false
+    opt_help=false
+    opt_mode=
+    opt_preserve_dup_deps=false
+    opt_quiet=false
+
+    nonopt=
+    preserve_args=
+
+    _G_rc_lt_options_prep=:
+
+    # Shorthand for --mode=foo, only valid as the first argument
+    case $1 in
+    clean|clea|cle|cl)
+      shift; set dummy --mode clean ${1+"$@"}; shift
+      ;;
+    compile|compil|compi|comp|com|co|c)
+      shift; set dummy --mode compile ${1+"$@"}; shift
+      ;;
+    execute|execut|execu|exec|exe|ex|e)
+      shift; set dummy --mode execute ${1+"$@"}; shift
+      ;;
+    finish|finis|fini|fin|fi|f)
+      shift; set dummy --mode finish ${1+"$@"}; shift
+      ;;
+    install|instal|insta|inst|ins|in|i)
+      shift; set dummy --mode install ${1+"$@"}; shift
+      ;;
+    link|lin|li|l)
+      shift; set dummy --mode link ${1+"$@"}; shift
+      ;;
+    uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
+      shift; set dummy --mode uninstall ${1+"$@"}; shift
+      ;;
+    *)
+      _G_rc_lt_options_prep=false
+      ;;
+    esac
+
+    if $_G_rc_lt_options_prep; then
+      # Pass back the list of options.
+      func_quote_for_eval ${1+"$@"}
+      libtool_options_prep_result=$func_quote_for_eval_result
+    fi
+
+    $_G_rc_lt_options_prep
+}
+func_add_hook func_options_prep libtool_options_prep
+
+
+# libtool_parse_options [ARG]...
+# ---------------------------------
+# Provide handling for libtool specific options.
+libtool_parse_options ()
+{
+    $debug_cmd
+
+    _G_rc_lt_parse_options=false
+
+    # Perform our own loop to consume as many options as possible in
+    # each iteration.
+    while test $# -gt 0; do
+      _G_match_lt_parse_options=:
+      _G_opt=$1
+      shift
+      case $_G_opt in
+        --dry-run|--dryrun|-n)
+                        opt_dry_run=:
+                        ;;
+
+        --config)       func_config ;;
+
+        --dlopen|-dlopen)
+                        opt_dlopen="${opt_dlopen+$opt_dlopen
+}$1"
+                        shift
+                        ;;
+
+        --preserve-dup-deps)
+                        opt_preserve_dup_deps=: ;;
+
+        --features)     func_features ;;
+
+        --finish)       set dummy --mode finish ${1+"$@"}; shift ;;
+
+        --help)         opt_help=: ;;
+
+        --help-all)     opt_help=': help-all' ;;
+
+        --mode)         test $# = 0 && func_missing_arg $_G_opt && break
+                        opt_mode=$1
+                        case $1 in
+                          # Valid mode arguments:
+                          clean|compile|execute|finish|install|link|relink|uninstall) ;;
+
+                          # Catch anything else as an error
+                          *) func_error "invalid argument for $_G_opt"
+                             exit_cmd=exit
+                             break
+                             ;;
+                        esac
+                        shift
+                        ;;
+
+        --no-silent|--no-quiet)
+                        opt_quiet=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --no-warnings|--no-warning|--no-warn)
+                        opt_warning=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --no-verbose)
+                        opt_verbose=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --silent|--quiet)
+                        opt_quiet=:
+                        opt_verbose=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --tag)          test $# = 0 && func_missing_arg $_G_opt && break
+                        opt_tag=$1
+                        func_append preserve_args " $_G_opt $1"
+                        func_enable_tag "$1"
+                        shift
+                        ;;
+
+        --verbose|-v)   opt_quiet=false
+                        opt_verbose=:
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        # An option not handled by this hook function:
+        *)              set dummy "$_G_opt" ${1+"$@"} ; shift
+                        _G_match_lt_parse_options=false
+                        break
+                        ;;
+      esac
+      $_G_match_lt_parse_options && _G_rc_lt_parse_options=:
+    done
+
+    if $_G_rc_lt_parse_options; then
+      # save modified positional parameters for caller
+      func_quote_for_eval ${1+"$@"}
+      libtool_parse_options_result=$func_quote_for_eval_result
+    fi
+
+    $_G_rc_lt_parse_options
+}
+func_add_hook func_parse_options libtool_parse_options
+
+
+
+# libtool_validate_options [ARG]...
+# ---------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+libtool_validate_options ()
+{
+    # save first non-option argument
+    if test 0 -lt $#; then
+      nonopt=$1
+      shift
+    fi
+
+    # preserve --debug
+    test : = "$debug_cmd" || func_append preserve_args " --debug"
+
+    case $host in
+      # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452
+      # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788
+      *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*)
+        # don't eliminate duplications in $postdeps and $predeps
+        opt_duplicate_compiler_generated_deps=:
+        ;;
+      *)
+        opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
+        ;;
+    esac
+
+    $opt_help || {
+      # Sanity checks first:
+      func_check_version_match
+
+      test yes != "$build_libtool_libs" \
+        && test yes != "$build_old_libs" \
+        && func_fatal_configuration "not configured to build any kind of library"
+
+      # Darwin sucks
+      eval std_shrext=\"$shrext_cmds\"
+
+      # Only execute mode is allowed to have -dlopen flags.
+      if test -n "$opt_dlopen" && test execute != "$opt_mode"; then
+        func_error "unrecognized option '-dlopen'"
+        $ECHO "$help" 1>&2
+        exit $EXIT_FAILURE
+      fi
+
+      # Change the help message to a mode-specific one.
+      generic_help=$help
+      help="Try '$progname --help --mode=$opt_mode' for more information."
+    }
+
+    # Pass back the unparsed argument list
+    func_quote_for_eval ${1+"$@"}
+    libtool_validate_options_result=$func_quote_for_eval_result
+}
+func_add_hook func_validate_options libtool_validate_options
+
+
+# Process options as early as possible so that --help and --version
+# can return quickly.
+func_options ${1+"$@"}
+eval set dummy "$func_options_result"; shift
+
+
+
+## ----------- ##
+##    Main.    ##
+## ----------- ##
+
+magic='%%%MAGIC variable%%%'
+magic_exe='%%%MAGIC EXE variable%%%'
+
+# Global variables.
+extracted_archives=
+extracted_serial=0
+
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end.  This prevents here-documents from being
+# left over by shells.
+exec_cmd=
+
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+}
+
+# func_generated_by_libtool
+# True iff stdin has been generated by Libtool. This function is only
+# a basic sanity check; it will hardly flush out determined imposters.
+func_generated_by_libtool_p ()
+{
+  $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
+}
+
+# func_lalib_p file
+# True iff FILE is a libtool '.la' library or '.lo' object file.
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_lalib_p ()
+{
+    test -f "$1" &&
+      $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p
+}
+
+# func_lalib_unsafe_p file
+# True iff FILE is a libtool '.la' library or '.lo' object file.
+# This function implements the same check as func_lalib_p without
+# resorting to external programs.  To this end, it redirects stdin and
+# closes it afterwards, without saving the original file descriptor.
+# As a safety measure, use it only where a negative result would be
+# fatal anyway.  Works if 'file' does not exist.
+func_lalib_unsafe_p ()
+{
+    lalib_p=no
+    if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
+	for lalib_p_l in 1 2 3 4
+	do
+	    read lalib_p_line
+	    case $lalib_p_line in
+		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
+	    esac
+	done
+	exec 0<&5 5<&-
+    fi
+    test yes = "$lalib_p"
+}
+
+# func_ltwrapper_script_p file
+# True iff FILE is a libtool wrapper script
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_script_p ()
+{
+    test -f "$1" &&
+      $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p
+}
+
+# func_ltwrapper_executable_p file
+# True iff FILE is a libtool wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_executable_p ()
+{
+    func_ltwrapper_exec_suffix=
+    case $1 in
+    *.exe) ;;
+    *) func_ltwrapper_exec_suffix=.exe ;;
+    esac
+    $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
+}
+
+# func_ltwrapper_scriptname file
+# Assumes file is an ltwrapper_executable
+# uses $file to determine the appropriate filename for a
+# temporary ltwrapper_script.
+func_ltwrapper_scriptname ()
+{
+    func_dirname_and_basename "$1" "" "."
+    func_stripname '' '.exe' "$func_basename_result"
+    func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper
+}
+
+# func_ltwrapper_p file
+# True iff FILE is a libtool wrapper script or wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_p ()
+{
+    func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
+}
+
+
+# func_execute_cmds commands fail_cmd
+# Execute tilde-delimited COMMANDS.
+# If FAIL_CMD is given, eval that upon failure.
+# FAIL_CMD may read-access the current command in variable CMD!
+func_execute_cmds ()
+{
+    $debug_cmd
+
+    save_ifs=$IFS; IFS='~'
+    for cmd in $1; do
+      IFS=$sp$nl
+      eval cmd=\"$cmd\"
+      IFS=$save_ifs
+      func_show_eval "$cmd" "${2-:}"
+    done
+    IFS=$save_ifs
+}
+
+
+# func_source file
+# Source FILE, adding directory component if necessary.
+# Note that it is not necessary on cygwin/mingw to append a dot to
+# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
+# behavior happens only for exec(3), not for open(2)!  Also, sourcing
+# 'FILE.' does not work on cygwin managed mounts.
+func_source ()
+{
+    $debug_cmd
+
+    case $1 in
+    */* | *\\*)	. "$1" ;;
+    *)		. "./$1" ;;
+    esac
+}
+
+
+# func_resolve_sysroot PATH
+# Replace a leading = in PATH with a sysroot.  Store the result into
+# func_resolve_sysroot_result
+func_resolve_sysroot ()
+{
+  func_resolve_sysroot_result=$1
+  case $func_resolve_sysroot_result in
+  =*)
+    func_stripname '=' '' "$func_resolve_sysroot_result"
+    func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
+    ;;
+  esac
+}
+
+# func_replace_sysroot PATH
+# If PATH begins with the sysroot, replace it with = and
+# store the result into func_replace_sysroot_result.
+func_replace_sysroot ()
+{
+  case $lt_sysroot:$1 in
+  ?*:"$lt_sysroot"*)
+    func_stripname "$lt_sysroot" '' "$1"
+    func_replace_sysroot_result='='$func_stripname_result
+    ;;
+  *)
+    # Including no sysroot.
+    func_replace_sysroot_result=$1
+    ;;
+  esac
+}
+
+# func_infer_tag arg
+# Infer tagged configuration to use if any are available and
+# if one wasn't chosen via the "--tag" command line option.
+# Only attempt this if the compiler in the base compile
+# command doesn't match the default compiler.
+# arg is usually of the form 'gcc ...'
+func_infer_tag ()
+{
+    $debug_cmd
+
+    if test -n "$available_tags" && test -z "$tagname"; then
+      CC_quoted=
+      for arg in $CC; do
+	func_append_quoted CC_quoted "$arg"
+      done
+      CC_expanded=`func_echo_all $CC`
+      CC_quoted_expanded=`func_echo_all $CC_quoted`
+      case $@ in
+      # Blanks in the command may have been stripped by the calling shell,
+      # but not from the CC environment variable when configure was run.
+      " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+      " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
+      # Blanks at the start of $base_compile will cause this to fail
+      # if we don't check for them as well.
+      *)
+	for z in $available_tags; do
+	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
+	    # Evaluate the configuration.
+	    eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
+	    CC_quoted=
+	    for arg in $CC; do
+	      # Double-quote args containing other shell metacharacters.
+	      func_append_quoted CC_quoted "$arg"
+	    done
+	    CC_expanded=`func_echo_all $CC`
+	    CC_quoted_expanded=`func_echo_all $CC_quoted`
+	    case "$@ " in
+	    " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+	    " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
+	      # The compiler in the base compile command matches
+	      # the one in the tagged configuration.
+	      # Assume this is the tagged configuration we want.
+	      tagname=$z
+	      break
+	      ;;
+	    esac
+	  fi
+	done
+	# If $tagname still isn't set, then no tagged configuration
+	# was found and let the user know that the "--tag" command
+	# line option must be used.
+	if test -z "$tagname"; then
+	  func_echo "unable to infer tagged configuration"
+	  func_fatal_error "specify a tag with '--tag'"
+#	else
+#	  func_verbose "using $tagname tagged configuration"
+	fi
+	;;
+      esac
+    fi
+}
+
+
+
+# func_write_libtool_object output_name pic_name nonpic_name
+# Create a libtool object file (analogous to a ".la" file),
+# but don't create it if we're doing a dry run.
+func_write_libtool_object ()
+{
+    write_libobj=$1
+    if test yes = "$build_libtool_libs"; then
+      write_lobj=\'$2\'
+    else
+      write_lobj=none
+    fi
+
+    if test yes = "$build_old_libs"; then
+      write_oldobj=\'$3\'
+    else
+      write_oldobj=none
+    fi
+
+    $opt_dry_run || {
+      cat >${write_libobj}T </dev/null`
+    if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then
+      func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
+        $SED -e "$sed_naive_backslashify"`
+    else
+      func_convert_core_file_wine_to_w32_result=
+    fi
+  fi
+}
+# end: func_convert_core_file_wine_to_w32
+
+
+# func_convert_core_path_wine_to_w32 ARG
+# Helper function used by path conversion functions when $build is *nix, and
+# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
+# configured wine environment available, with the winepath program in $build's
+# $PATH. Assumes ARG has no leading or trailing path separator characters.
+#
+# ARG is path to be converted from $build format to win32.
+# Result is available in $func_convert_core_path_wine_to_w32_result.
+# Unconvertible file (directory) names in ARG are skipped; if no directory names
+# are convertible, then the result may be empty.
+func_convert_core_path_wine_to_w32 ()
+{
+  $debug_cmd
+
+  # unfortunately, winepath doesn't convert paths, only file names
+  func_convert_core_path_wine_to_w32_result=
+  if test -n "$1"; then
+    oldIFS=$IFS
+    IFS=:
+    for func_convert_core_path_wine_to_w32_f in $1; do
+      IFS=$oldIFS
+      func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
+      if test -n "$func_convert_core_file_wine_to_w32_result"; then
+        if test -z "$func_convert_core_path_wine_to_w32_result"; then
+          func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result
+        else
+          func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
+        fi
+      fi
+    done
+    IFS=$oldIFS
+  fi
+}
+# end: func_convert_core_path_wine_to_w32
+
+
+# func_cygpath ARGS...
+# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
+# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
+# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
+# (2), returns the Cygwin file name or path in func_cygpath_result (input
+# file name or path is assumed to be in w32 format, as previously converted
+# from $build's *nix or MSYS format). In case (3), returns the w32 file name
+# or path in func_cygpath_result (input file name or path is assumed to be in
+# Cygwin format). Returns an empty string on error.
+#
+# ARGS are passed to cygpath, with the last one being the file name or path to
+# be converted.
+#
+# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
+# environment variable; do not put it in $PATH.
+func_cygpath ()
+{
+  $debug_cmd
+
+  if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
+    func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
+    if test "$?" -ne 0; then
+      # on failure, ensure result is empty
+      func_cygpath_result=
+    fi
+  else
+    func_cygpath_result=
+    func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'"
+  fi
+}
+#end: func_cygpath
+
+
+# func_convert_core_msys_to_w32 ARG
+# Convert file name or path ARG from MSYS format to w32 format.  Return
+# result in func_convert_core_msys_to_w32_result.
+func_convert_core_msys_to_w32 ()
+{
+  $debug_cmd
+
+  # awkward: cmd appends spaces to result
+  func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
+    $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"`
+}
+#end: func_convert_core_msys_to_w32
+
+
+# func_convert_file_check ARG1 ARG2
+# Verify that ARG1 (a file name in $build format) was converted to $host
+# format in ARG2. Otherwise, emit an error message, but continue (resetting
+# func_to_host_file_result to ARG1).
+func_convert_file_check ()
+{
+  $debug_cmd
+
+  if test -z "$2" && test -n "$1"; then
+    func_error "Could not determine host file name corresponding to"
+    func_error "  '$1'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback:
+    func_to_host_file_result=$1
+  fi
+}
+# end func_convert_file_check
+
+
+# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
+# Verify that FROM_PATH (a path in $build format) was converted to $host
+# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
+# func_to_host_file_result to a simplistic fallback value (see below).
+func_convert_path_check ()
+{
+  $debug_cmd
+
+  if test -z "$4" && test -n "$3"; then
+    func_error "Could not determine the host path corresponding to"
+    func_error "  '$3'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback.  This is a deliberately simplistic "conversion" and
+    # should not be "improved".  See libtool.info.
+    if test "x$1" != "x$2"; then
+      lt_replace_pathsep_chars="s|$1|$2|g"
+      func_to_host_path_result=`echo "$3" |
+        $SED -e "$lt_replace_pathsep_chars"`
+    else
+      func_to_host_path_result=$3
+    fi
+  fi
+}
+# end func_convert_path_check
+
+
+# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
+# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
+# and appending REPL if ORIG matches BACKPAT.
+func_convert_path_front_back_pathsep ()
+{
+  $debug_cmd
+
+  case $4 in
+  $1 ) func_to_host_path_result=$3$func_to_host_path_result
+    ;;
+  esac
+  case $4 in
+  $2 ) func_append func_to_host_path_result "$3"
+    ;;
+  esac
+}
+# end func_convert_path_front_back_pathsep
+
+
+##################################################
+# $build to $host FILE NAME CONVERSION FUNCTIONS #
+##################################################
+# invoked via '$to_host_file_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# Result will be available in $func_to_host_file_result.
+
+
+# func_to_host_file ARG
+# Converts the file name ARG from $build format to $host format. Return result
+# in func_to_host_file_result.
+func_to_host_file ()
+{
+  $debug_cmd
+
+  $to_host_file_cmd "$1"
+}
+# end func_to_host_file
+
+
+# func_to_tool_file ARG LAZY
+# converts the file name ARG from $build format to toolchain format. Return
+# result in func_to_tool_file_result.  If the conversion in use is listed
+# in (the comma separated) LAZY, no conversion takes place.
+func_to_tool_file ()
+{
+  $debug_cmd
+
+  case ,$2, in
+    *,"$to_tool_file_cmd",*)
+      func_to_tool_file_result=$1
+      ;;
+    *)
+      $to_tool_file_cmd "$1"
+      func_to_tool_file_result=$func_to_host_file_result
+      ;;
+  esac
+}
+# end func_to_tool_file
+
+
+# func_convert_file_noop ARG
+# Copy ARG to func_to_host_file_result.
+func_convert_file_noop ()
+{
+  func_to_host_file_result=$1
+}
+# end func_convert_file_noop
+
+
+# func_convert_file_msys_to_w32 ARG
+# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_file_result.
+func_convert_file_msys_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_to_host_file_result=$func_convert_core_msys_to_w32_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_w32
+
+
+# func_convert_file_cygwin_to_w32 ARG
+# Convert file name ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_file_cygwin_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
+    # LT_CYGPATH in this case.
+    func_to_host_file_result=`cygpath -m "$1"`
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_cygwin_to_w32
+
+
+# func_convert_file_nix_to_w32 ARG
+# Convert file name ARG from *nix to w32 format.  Requires a wine environment
+# and a working winepath. Returns result in func_to_host_file_result.
+func_convert_file_nix_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_file_wine_to_w32 "$1"
+    func_to_host_file_result=$func_convert_core_file_wine_to_w32_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_w32
+
+
+# func_convert_file_msys_to_cygwin ARG
+# Convert file name ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_file_msys_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_msys_to_w32_result"
+    func_to_host_file_result=$func_cygpath_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_cygwin
+
+
+# func_convert_file_nix_to_cygwin ARG
+# Convert file name ARG from *nix to Cygwin format.  Requires Cygwin installed
+# in a wine environment, working winepath, and LT_CYGPATH set.  Returns result
+# in func_to_host_file_result.
+func_convert_file_nix_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
+    func_convert_core_file_wine_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
+    func_to_host_file_result=$func_cygpath_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_cygwin
+
+
+#############################################
+# $build to $host PATH CONVERSION FUNCTIONS #
+#############################################
+# invoked via '$to_host_path_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# The result will be available in $func_to_host_path_result.
+#
+# Path separators are also converted from $build format to $host format.  If
+# ARG begins or ends with a path separator character, it is preserved (but
+# converted to $host format) on output.
+#
+# All path conversion functions are named using the following convention:
+#   file name conversion function    : func_convert_file_X_to_Y ()
+#   path conversion function         : func_convert_path_X_to_Y ()
+# where, for any given $build/$host combination the 'X_to_Y' value is the
+# same.  If conversion functions are added for new $build/$host combinations,
+# the two new functions must follow this pattern, or func_init_to_host_path_cmd
+# will break.
+
+
+# func_init_to_host_path_cmd
+# Ensures that function "pointer" variable $to_host_path_cmd is set to the
+# appropriate value, based on the value of $to_host_file_cmd.
+to_host_path_cmd=
+func_init_to_host_path_cmd ()
+{
+  $debug_cmd
+
+  if test -z "$to_host_path_cmd"; then
+    func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
+    to_host_path_cmd=func_convert_path_$func_stripname_result
+  fi
+}
+
+
+# func_to_host_path ARG
+# Converts the path ARG from $build format to $host format. Return result
+# in func_to_host_path_result.
+func_to_host_path ()
+{
+  $debug_cmd
+
+  func_init_to_host_path_cmd
+  $to_host_path_cmd "$1"
+}
+# end func_to_host_path
+
+
+# func_convert_path_noop ARG
+# Copy ARG to func_to_host_path_result.
+func_convert_path_noop ()
+{
+  func_to_host_path_result=$1
+}
+# end func_convert_path_noop
+
+
+# func_convert_path_msys_to_w32 ARG
+# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_path_result.
+func_convert_path_msys_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from ARG.  MSYS
+    # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
+    # and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result=$func_convert_core_msys_to_w32_result
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_msys_to_w32
+
+
+# func_convert_path_cygwin_to_w32 ARG
+# Convert path ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_path_cygwin_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_cygwin_to_w32
+
+
+# func_convert_path_nix_to_w32 ARG
+# Convert path ARG from *nix to w32 format.  Requires a wine environment and
+# a working winepath.  Returns result in func_to_host_file_result.
+func_convert_path_nix_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result=$func_convert_core_path_wine_to_w32_result
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_nix_to_w32
+
+
+# func_convert_path_msys_to_cygwin ARG
+# Convert path ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_path_msys_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
+    func_to_host_path_result=$func_cygpath_result
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_msys_to_cygwin
+
+
+# func_convert_path_nix_to_cygwin ARG
+# Convert path ARG from *nix to Cygwin format.  Requires Cygwin installed in a
+# a wine environment, working winepath, and LT_CYGPATH set.  Returns result in
+# func_to_host_file_result.
+func_convert_path_nix_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from
+    # ARG. msys behavior is inconsistent here, cygpath turns them
+    # into '.;' and ';.', and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
+    func_to_host_path_result=$func_cygpath_result
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_nix_to_cygwin
+
+
+# func_dll_def_p FILE
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with _LT_DLL_DEF_P in libtool.m4
+func_dll_def_p ()
+{
+  $debug_cmd
+
+  func_dll_def_p_tmp=`$SED -n \
+    -e 's/^[	 ]*//' \
+    -e '/^\(;.*\)*$/d' \
+    -e 's/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p' \
+    -e q \
+    "$1"`
+  test DEF = "$func_dll_def_p_tmp"
+}
+
+
+# func_mode_compile arg...
+func_mode_compile ()
+{
+    $debug_cmd
+
+    # Get the compilation command and the source file.
+    base_compile=
+    srcfile=$nonopt  #  always keep a non-empty value in "srcfile"
+    suppress_opt=yes
+    suppress_output=
+    arg_mode=normal
+    libobj=
+    later=
+    pie_flag=
+
+    for arg
+    do
+      case $arg_mode in
+      arg  )
+	# do not "continue".  Instead, add this to base_compile
+	lastarg=$arg
+	arg_mode=normal
+	;;
+
+      target )
+	libobj=$arg
+	arg_mode=normal
+	continue
+	;;
+
+      normal )
+	# Accept any command-line options.
+	case $arg in
+	-o)
+	  test -n "$libobj" && \
+	    func_fatal_error "you cannot specify '-o' more than once"
+	  arg_mode=target
+	  continue
+	  ;;
+
+	-pie | -fpie | -fPIE)
+          func_append pie_flag " $arg"
+	  continue
+	  ;;
+
+	-shared | -static | -prefer-pic | -prefer-non-pic)
+	  func_append later " $arg"
+	  continue
+	  ;;
+
+	-no-suppress)
+	  suppress_opt=no
+	  continue
+	  ;;
+
+	-Xcompiler)
+	  arg_mode=arg  #  the next one goes into the "base_compile" arg list
+	  continue      #  The current "srcfile" will either be retained or
+	  ;;            #  replaced later.  I would guess that would be a bug.
+
+	-Wc,*)
+	  func_stripname '-Wc,' '' "$arg"
+	  args=$func_stripname_result
+	  lastarg=
+	  save_ifs=$IFS; IFS=,
+	  for arg in $args; do
+	    IFS=$save_ifs
+	    func_append_quoted lastarg "$arg"
+	  done
+	  IFS=$save_ifs
+	  func_stripname ' ' '' "$lastarg"
+	  lastarg=$func_stripname_result
+
+	  # Add the arguments to base_compile.
+	  func_append base_compile " $lastarg"
+	  continue
+	  ;;
+
+	*)
+	  # Accept the current argument as the source file.
+	  # The previous "srcfile" becomes the current argument.
+	  #
+	  lastarg=$srcfile
+	  srcfile=$arg
+	  ;;
+	esac  #  case $arg
+	;;
+      esac    #  case $arg_mode
+
+      # Aesthetically quote the previous argument.
+      func_append_quoted base_compile "$lastarg"
+    done # for arg
+
+    case $arg_mode in
+    arg)
+      func_fatal_error "you must specify an argument for -Xcompile"
+      ;;
+    target)
+      func_fatal_error "you must specify a target with '-o'"
+      ;;
+    *)
+      # Get the name of the library object.
+      test -z "$libobj" && {
+	func_basename "$srcfile"
+	libobj=$func_basename_result
+      }
+      ;;
+    esac
+
+    # Recognize several different file suffixes.
+    # If the user specifies -o file.o, it is replaced with file.lo
+    case $libobj in
+    *.[cCFSifmso] | \
+    *.ada | *.adb | *.ads | *.asm | \
+    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
+    *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
+      func_xform "$libobj"
+      libobj=$func_xform_result
+      ;;
+    esac
+
+    case $libobj in
+    *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
+    *)
+      func_fatal_error "cannot determine name of library object from '$libobj'"
+      ;;
+    esac
+
+    func_infer_tag $base_compile
+
+    for arg in $later; do
+      case $arg in
+      -shared)
+	test yes = "$build_libtool_libs" \
+	  || func_fatal_configuration "cannot build a shared library"
+	build_old_libs=no
+	continue
+	;;
+
+      -static)
+	build_libtool_libs=no
+	build_old_libs=yes
+	continue
+	;;
+
+      -prefer-pic)
+	pic_mode=yes
+	continue
+	;;
+
+      -prefer-non-pic)
+	pic_mode=no
+	continue
+	;;
+      esac
+    done
+
+    func_quote_for_eval "$libobj"
+    test "X$libobj" != "X$func_quote_for_eval_result" \
+      && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
+      && func_warning "libobj name '$libobj' may not contain shell special characters."
+    func_dirname_and_basename "$obj" "/" ""
+    objname=$func_basename_result
+    xdir=$func_dirname_result
+    lobj=$xdir$objdir/$objname
+
+    test -z "$base_compile" && \
+      func_fatal_help "you must specify a compilation command"
+
+    # Delete any leftover library objects.
+    if test yes = "$build_old_libs"; then
+      removelist="$obj $lobj $libobj ${libobj}T"
+    else
+      removelist="$lobj $libobj ${libobj}T"
+    fi
+
+    # On Cygwin there's no "real" PIC flag so we must build both object types
+    case $host_os in
+    cygwin* | mingw* | pw32* | os2* | cegcc*)
+      pic_mode=default
+      ;;
+    esac
+    if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then
+      # non-PIC code in shared libraries is not supported
+      pic_mode=default
+    fi
+
+    # Calculate the filename of the output object if compiler does
+    # not support -o with -c
+    if test no = "$compiler_c_o"; then
+      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext
+      lockfile=$output_obj.lock
+    else
+      output_obj=
+      need_locks=no
+      lockfile=
+    fi
+
+    # Lock this critical section if it is needed
+    # We use this script file to make the link, it avoids creating a new file
+    if test yes = "$need_locks"; then
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    elif test warn = "$need_locks"; then
+      if test -f "$lockfile"; then
+	$ECHO "\
+*** ERROR, $lockfile exists and contains:
+`cat $lockfile 2>/dev/null`
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+      func_append removelist " $output_obj"
+      $ECHO "$srcfile" > "$lockfile"
+    fi
+
+    $opt_dry_run || $RM $removelist
+    func_append removelist " $lockfile"
+    trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
+
+    func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
+    srcfile=$func_to_tool_file_result
+    func_quote_for_eval "$srcfile"
+    qsrcfile=$func_quote_for_eval_result
+
+    # Only build a PIC object if we are building libtool libraries.
+    if test yes = "$build_libtool_libs"; then
+      # Without this assignment, base_compile gets emptied.
+      fbsd_hideous_sh_bug=$base_compile
+
+      if test no != "$pic_mode"; then
+	command="$base_compile $qsrcfile $pic_flag"
+      else
+	# Don't build PIC code
+	command="$base_compile $qsrcfile"
+      fi
+
+      func_mkdir_p "$xdir$objdir"
+
+      if test -z "$output_obj"; then
+	# Place PIC objects in $objdir
+	func_append command " -o $lobj"
+      fi
+
+      func_show_eval_locale "$command"	\
+          'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
+
+      if test warn = "$need_locks" &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed, then go on to compile the next one
+      if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
+	func_show_eval '$MV "$output_obj" "$lobj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+
+      # Allow error messages only from the first compilation.
+      if test yes = "$suppress_opt"; then
+	suppress_output=' >/dev/null 2>&1'
+      fi
+    fi
+
+    # Only build a position-dependent object if we build old libraries.
+    if test yes = "$build_old_libs"; then
+      if test yes != "$pic_mode"; then
+	# Don't build PIC code
+	command="$base_compile $qsrcfile$pie_flag"
+      else
+	command="$base_compile $qsrcfile $pic_flag"
+      fi
+      if test yes = "$compiler_c_o"; then
+	func_append command " -o $obj"
+      fi
+
+      # Suppress compiler output if we already did a PIC compilation.
+      func_append command "$suppress_output"
+      func_show_eval_locale "$command" \
+        '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
+
+      if test warn = "$need_locks" &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed
+      if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
+	func_show_eval '$MV "$output_obj" "$obj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+    fi
+
+    $opt_dry_run || {
+      func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
+
+      # Unlock the critical section if it was locked
+      if test no != "$need_locks"; then
+	removelist=$lockfile
+        $RM "$lockfile"
+      fi
+    }
+
+    exit $EXIT_SUCCESS
+}
+
+$opt_help || {
+  test compile = "$opt_mode" && func_mode_compile ${1+"$@"}
+}
+
+func_mode_help ()
+{
+    # We need to display help for each of the modes.
+    case $opt_mode in
+      "")
+        # Generic help is extracted from the usage comments
+        # at the start of this file.
+        func_help
+        ;;
+
+      clean)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
+
+Remove files from the build directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically '/bin/rm').  RM-OPTIONS are options (such as '-f') to be passed
+to RM.
+
+If FILE is a libtool library, object or program, all the files associated
+with it are deleted. Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      compile)
+      $ECHO \
+"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
+
+Compile a source file into a libtool library object.
+
+This mode accepts the following additional options:
+
+  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
+  -no-suppress      do not suppress compiler output for multiple passes
+  -prefer-pic       try to build PIC objects only
+  -prefer-non-pic   try to build non-PIC objects only
+  -shared           do not build a '.o' file suitable for static linking
+  -static           only build a '.o' file suitable for static linking
+  -Wc,FLAG          pass FLAG directly to the compiler
+
+COMPILE-COMMAND is a command to be used in creating a 'standard' object file
+from the given SOURCEFILE.
+
+The output file name is determined by removing the directory component from
+SOURCEFILE, then substituting the C source code suffix '.c' with the
+library object suffix, '.lo'."
+        ;;
+
+      execute)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
+
+Automatically set library path, then run a program.
+
+This mode accepts the following additional options:
+
+  -dlopen FILE      add the directory containing FILE to the library path
+
+This mode sets the library path environment variable according to '-dlopen'
+flags.
+
+If any of the ARGS are libtool executable wrappers, then they are translated
+into their corresponding uninstalled binary, and any of their required library
+directories are added to the library path.
+
+Then, COMMAND is executed, with ARGS as arguments."
+        ;;
+
+      finish)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
+
+Complete the installation of libtool libraries.
+
+Each LIBDIR is a directory that contains libtool libraries.
+
+The commands that this mode executes may require superuser privileges.  Use
+the '--dry-run' option if you just want to see what would be executed."
+        ;;
+
+      install)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
+
+Install executables or libraries.
+
+INSTALL-COMMAND is the installation command.  The first component should be
+either the 'install' or 'cp' program.
+
+The following components of INSTALL-COMMAND are treated specially:
+
+  -inst-prefix-dir PREFIX-DIR  Use PREFIX-DIR as a staging area for installation
+
+The rest of the components are interpreted as arguments to that command (only
+BSD-compatible install options are recognized)."
+        ;;
+
+      link)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
+
+Link object files or libraries together to form another library, or to
+create an executable program.
+
+LINK-COMMAND is a command using the C compiler that you would use to create
+a program from several object files.
+
+The following components of LINK-COMMAND are treated specially:
+
+  -all-static       do not do any dynamic linking at all
+  -avoid-version    do not add a version suffix if possible
+  -bindir BINDIR    specify path to binaries directory (for systems where
+                    libraries must be found in the PATH setting at runtime)
+  -dlopen FILE      '-dlpreopen' FILE if it cannot be dlopened at runtime
+  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
+  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
+  -export-symbols SYMFILE
+                    try to export only the symbols listed in SYMFILE
+  -export-symbols-regex REGEX
+                    try to export only the symbols matching REGEX
+  -LLIBDIR          search LIBDIR for required installed libraries
+  -lNAME            OUTPUT-FILE requires the installed library libNAME
+  -module           build a library that can dlopened
+  -no-fast-install  disable the fast-install mode
+  -no-install       link a not-installable executable
+  -no-undefined     declare that a library does not refer to external symbols
+  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
+  -objectlist FILE  use a list of object files found in FILE to specify objects
+  -os2dllname NAME  force a short DLL name on OS/2 (no effect on other OSes)
+  -precious-files-regex REGEX
+                    don't remove output files matching REGEX
+  -release RELEASE  specify package release information
+  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
+  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
+  -shared           only do dynamic linking of libtool libraries
+  -shrext SUFFIX    override the standard shared library file extension
+  -static           do not do any dynamic linking of uninstalled libtool libraries
+  -static-libtool-libs
+                    do not do any dynamic linking of libtool libraries
+  -version-info CURRENT[:REVISION[:AGE]]
+                    specify library version info [each variable defaults to 0]
+  -weak LIBNAME     declare that the target provides the LIBNAME interface
+  -Wc,FLAG
+  -Xcompiler FLAG   pass linker-specific FLAG directly to the compiler
+  -Wl,FLAG
+  -Xlinker FLAG     pass linker-specific FLAG directly to the linker
+  -XCClinker FLAG   pass link-specific FLAG to the compiler driver (CC)
+
+All other options (arguments beginning with '-') are ignored.
+
+Every other argument is treated as a filename.  Files ending in '.la' are
+treated as uninstalled libtool libraries, other files are standard or library
+object files.
+
+If the OUTPUT-FILE ends in '.la', then a libtool library is created,
+only library objects ('.lo' files) may be specified, and '-rpath' is
+required, except when creating a convenience library.
+
+If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created
+using 'ar' and 'ranlib', or on Windows using 'lib'.
+
+If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file
+is created, otherwise an executable program is created."
+        ;;
+
+      uninstall)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
+
+Remove libraries from an installation directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically '/bin/rm').  RM-OPTIONS are options (such as '-f') to be passed
+to RM.
+
+If FILE is a libtool library, all the files associated with it are deleted.
+Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      *)
+        func_fatal_help "invalid operation mode '$opt_mode'"
+        ;;
+    esac
+
+    echo
+    $ECHO "Try '$progname --help' for more information about other modes."
+}
+
+# Now that we've collected a possible --mode arg, show help if necessary
+if $opt_help; then
+  if test : = "$opt_help"; then
+    func_mode_help
+  else
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	func_mode_help
+      done
+    } | $SED -n '1p; 2,$s/^Usage:/  or: /p'
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	echo
+	func_mode_help
+      done
+    } |
+    $SED '1d
+      /^When reporting/,/^Report/{
+	H
+	d
+      }
+      $x
+      /information about other modes/d
+      /more detailed .*MODE/d
+      s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
+  fi
+  exit $?
+fi
+
+
+# func_mode_execute arg...
+func_mode_execute ()
+{
+    $debug_cmd
+
+    # The first argument is the command name.
+    cmd=$nonopt
+    test -z "$cmd" && \
+      func_fatal_help "you must specify a COMMAND"
+
+    # Handle -dlopen flags immediately.
+    for file in $opt_dlopen; do
+      test -f "$file" \
+	|| func_fatal_help "'$file' is not a file"
+
+      dir=
+      case $file in
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "'$lib' is not a valid libtool archive"
+
+	# Read the libtool library.
+	dlname=
+	library_names=
+	func_source "$file"
+
+	# Skip this library if it cannot be dlopened.
+	if test -z "$dlname"; then
+	  # Warn if it was a shared library.
+	  test -n "$library_names" && \
+	    func_warning "'$file' was not linked with '-export-dynamic'"
+	  continue
+	fi
+
+	func_dirname "$file" "" "."
+	dir=$func_dirname_result
+
+	if test -f "$dir/$objdir/$dlname"; then
+	  func_append dir "/$objdir"
+	else
+	  if test ! -f "$dir/$dlname"; then
+	    func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'"
+	  fi
+	fi
+	;;
+
+      *.lo)
+	# Just add the directory containing the .lo file.
+	func_dirname "$file" "" "."
+	dir=$func_dirname_result
+	;;
+
+      *)
+	func_warning "'-dlopen' is ignored for non-libtool libraries and objects"
+	continue
+	;;
+      esac
+
+      # Get the absolute pathname.
+      absdir=`cd "$dir" && pwd`
+      test -n "$absdir" && dir=$absdir
+
+      # Now add the directory to shlibpath_var.
+      if eval "test -z \"\$$shlibpath_var\""; then
+	eval "$shlibpath_var=\"\$dir\""
+      else
+	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
+      fi
+    done
+
+    # This variable tells wrapper scripts just to set shlibpath_var
+    # rather than running their programs.
+    libtool_execute_magic=$magic
+
+    # Check if any of the arguments is a wrapper script.
+    args=
+    for file
+    do
+      case $file in
+      -* | *.la | *.lo ) ;;
+      *)
+	# Do a test to see if this is really a libtool program.
+	if func_ltwrapper_script_p "$file"; then
+	  func_source "$file"
+	  # Transform arg to wrapped name.
+	  file=$progdir/$program
+	elif func_ltwrapper_executable_p "$file"; then
+	  func_ltwrapper_scriptname "$file"
+	  func_source "$func_ltwrapper_scriptname_result"
+	  # Transform arg to wrapped name.
+	  file=$progdir/$program
+	fi
+	;;
+      esac
+      # Quote arguments (to preserve shell metacharacters).
+      func_append_quoted args "$file"
+    done
+
+    if $opt_dry_run; then
+      # Display what would be done.
+      if test -n "$shlibpath_var"; then
+	eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
+	echo "export $shlibpath_var"
+      fi
+      $ECHO "$cmd$args"
+      exit $EXIT_SUCCESS
+    else
+      if test -n "$shlibpath_var"; then
+	# Export the shlibpath_var.
+	eval "export $shlibpath_var"
+      fi
+
+      # Restore saved environment variables
+      for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+      do
+	eval "if test \"\${save_$lt_var+set}\" = set; then
+                $lt_var=\$save_$lt_var; export $lt_var
+	      else
+		$lt_unset $lt_var
+	      fi"
+      done
+
+      # Now prepare to actually exec the command.
+      exec_cmd=\$cmd$args
+    fi
+}
+
+test execute = "$opt_mode" && func_mode_execute ${1+"$@"}
+
+
+# func_mode_finish arg...
+func_mode_finish ()
+{
+    $debug_cmd
+
+    libs=
+    libdirs=
+    admincmds=
+
+    for opt in "$nonopt" ${1+"$@"}
+    do
+      if test -d "$opt"; then
+	func_append libdirs " $opt"
+
+      elif test -f "$opt"; then
+	if func_lalib_unsafe_p "$opt"; then
+	  func_append libs " $opt"
+	else
+	  func_warning "'$opt' is not a valid libtool archive"
+	fi
+
+      else
+	func_fatal_error "invalid argument '$opt'"
+      fi
+    done
+
+    if test -n "$libs"; then
+      if test -n "$lt_sysroot"; then
+        sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
+        sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
+      else
+        sysroot_cmd=
+      fi
+
+      # Remove sysroot references
+      if $opt_dry_run; then
+        for lib in $libs; do
+          echo "removing references to $lt_sysroot and '=' prefixes from $lib"
+        done
+      else
+        tmpdir=`func_mktempdir`
+        for lib in $libs; do
+	  $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
+	    > $tmpdir/tmp-la
+	  mv -f $tmpdir/tmp-la $lib
+	done
+        ${RM}r "$tmpdir"
+      fi
+    fi
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      for libdir in $libdirs; do
+	if test -n "$finish_cmds"; then
+	  # Do each command in the finish commands.
+	  func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
+'"$cmd"'"'
+	fi
+	if test -n "$finish_eval"; then
+	  # Do the single finish_eval.
+	  eval cmds=\"$finish_eval\"
+	  $opt_dry_run || eval "$cmds" || func_append admincmds "
+       $cmds"
+	fi
+      done
+    fi
+
+    # Exit here if they wanted silent mode.
+    $opt_quiet && exit $EXIT_SUCCESS
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      echo "----------------------------------------------------------------------"
+      echo "Libraries have been installed in:"
+      for libdir in $libdirs; do
+	$ECHO "   $libdir"
+      done
+      echo
+      echo "If you ever happen to want to link against installed libraries"
+      echo "in a given directory, LIBDIR, you must either use libtool, and"
+      echo "specify the full pathname of the library, or use the '-LLIBDIR'"
+      echo "flag during linking and do at least one of the following:"
+      if test -n "$shlibpath_var"; then
+	echo "   - add LIBDIR to the '$shlibpath_var' environment variable"
+	echo "     during execution"
+      fi
+      if test -n "$runpath_var"; then
+	echo "   - add LIBDIR to the '$runpath_var' environment variable"
+	echo "     during linking"
+      fi
+      if test -n "$hardcode_libdir_flag_spec"; then
+	libdir=LIBDIR
+	eval flag=\"$hardcode_libdir_flag_spec\"
+
+	$ECHO "   - use the '$flag' linker flag"
+      fi
+      if test -n "$admincmds"; then
+	$ECHO "   - have your system administrator run these commands:$admincmds"
+      fi
+      if test -f /etc/ld.so.conf; then
+	echo "   - have your system administrator add LIBDIR to '/etc/ld.so.conf'"
+      fi
+      echo
+
+      echo "See any operating system documentation about shared libraries for"
+      case $host in
+	solaris2.[6789]|solaris2.1[0-9])
+	  echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
+	  echo "pages."
+	  ;;
+	*)
+	  echo "more information, such as the ld(1) and ld.so(8) manual pages."
+	  ;;
+      esac
+      echo "----------------------------------------------------------------------"
+    fi
+    exit $EXIT_SUCCESS
+}
+
+test finish = "$opt_mode" && func_mode_finish ${1+"$@"}
+
+
+# func_mode_install arg...
+func_mode_install ()
+{
+    $debug_cmd
+
+    # There may be an optional sh(1) argument at the beginning of
+    # install_prog (especially on Windows NT).
+    if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" ||
+       # Allow the use of GNU shtool's install command.
+       case $nonopt in *shtool*) :;; *) false;; esac
+    then
+      # Aesthetically quote it.
+      func_quote_for_eval "$nonopt"
+      install_prog="$func_quote_for_eval_result "
+      arg=$1
+      shift
+    else
+      install_prog=
+      arg=$nonopt
+    fi
+
+    # The real first argument should be the name of the installation program.
+    # Aesthetically quote it.
+    func_quote_for_eval "$arg"
+    func_append install_prog "$func_quote_for_eval_result"
+    install_shared_prog=$install_prog
+    case " $install_prog " in
+      *[\\\ /]cp\ *) install_cp=: ;;
+      *) install_cp=false ;;
+    esac
+
+    # We need to accept at least all the BSD install flags.
+    dest=
+    files=
+    opts=
+    prev=
+    install_type=
+    isdir=false
+    stripme=
+    no_mode=:
+    for arg
+    do
+      arg2=
+      if test -n "$dest"; then
+	func_append files " $dest"
+	dest=$arg
+	continue
+      fi
+
+      case $arg in
+      -d) isdir=: ;;
+      -f)
+	if $install_cp; then :; else
+	  prev=$arg
+	fi
+	;;
+      -g | -m | -o)
+	prev=$arg
+	;;
+      -s)
+	stripme=" -s"
+	continue
+	;;
+      -*)
+	;;
+      *)
+	# If the previous option needed an argument, then skip it.
+	if test -n "$prev"; then
+	  if test X-m = "X$prev" && test -n "$install_override_mode"; then
+	    arg2=$install_override_mode
+	    no_mode=false
+	  fi
+	  prev=
+	else
+	  dest=$arg
+	  continue
+	fi
+	;;
+      esac
+
+      # Aesthetically quote the argument.
+      func_quote_for_eval "$arg"
+      func_append install_prog " $func_quote_for_eval_result"
+      if test -n "$arg2"; then
+	func_quote_for_eval "$arg2"
+      fi
+      func_append install_shared_prog " $func_quote_for_eval_result"
+    done
+
+    test -z "$install_prog" && \
+      func_fatal_help "you must specify an install program"
+
+    test -n "$prev" && \
+      func_fatal_help "the '$prev' option requires an argument"
+
+    if test -n "$install_override_mode" && $no_mode; then
+      if $install_cp; then :; else
+	func_quote_for_eval "$install_override_mode"
+	func_append install_shared_prog " -m $func_quote_for_eval_result"
+      fi
+    fi
+
+    if test -z "$files"; then
+      if test -z "$dest"; then
+	func_fatal_help "no file or destination specified"
+      else
+	func_fatal_help "you must specify a destination"
+      fi
+    fi
+
+    # Strip any trailing slash from the destination.
+    func_stripname '' '/' "$dest"
+    dest=$func_stripname_result
+
+    # Check to see that the destination is a directory.
+    test -d "$dest" && isdir=:
+    if $isdir; then
+      destdir=$dest
+      destname=
+    else
+      func_dirname_and_basename "$dest" "" "."
+      destdir=$func_dirname_result
+      destname=$func_basename_result
+
+      # Not a directory, so check to see that there is only one file specified.
+      set dummy $files; shift
+      test "$#" -gt 1 && \
+	func_fatal_help "'$dest' is not a directory"
+    fi
+    case $destdir in
+    [\\/]* | [A-Za-z]:[\\/]*) ;;
+    *)
+      for file in $files; do
+	case $file in
+	*.lo) ;;
+	*)
+	  func_fatal_help "'$destdir' must be an absolute directory name"
+	  ;;
+	esac
+      done
+      ;;
+    esac
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic=$magic
+
+    staticlibs=
+    future_libdirs=
+    current_libdirs=
+    for file in $files; do
+
+      # Do each installation.
+      case $file in
+      *.$libext)
+	# Do the static libraries later.
+	func_append staticlibs " $file"
+	;;
+
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "'$file' is not a valid libtool archive"
+
+	library_names=
+	old_library=
+	relink_command=
+	func_source "$file"
+
+	# Add the libdir to current_libdirs if it is the destination.
+	if test "X$destdir" = "X$libdir"; then
+	  case "$current_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append current_libdirs " $libdir" ;;
+	  esac
+	else
+	  # Note the libdir as a future libdir.
+	  case "$future_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append future_libdirs " $libdir" ;;
+	  esac
+	fi
+
+	func_dirname "$file" "/" ""
+	dir=$func_dirname_result
+	func_append dir "$objdir"
+
+	if test -n "$relink_command"; then
+	  # Determine the prefix the user has applied to our future dir.
+	  inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
+
+	  # Don't allow the user to place us outside of our expected
+	  # location b/c this prevents finding dependent libraries that
+	  # are installed to the same prefix.
+	  # At present, this check doesn't affect windows .dll's that
+	  # are installed into $libdir/../bin (currently, that works fine)
+	  # but it's something to keep an eye on.
+	  test "$inst_prefix_dir" = "$destdir" && \
+	    func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir"
+
+	  if test -n "$inst_prefix_dir"; then
+	    # Stick the inst_prefix_dir data into the link command.
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
+	  else
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
+	  fi
+
+	  func_warning "relinking '$file'"
+	  func_show_eval "$relink_command" \
+	    'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"'
+	fi
+
+	# See the names of the shared library.
+	set dummy $library_names; shift
+	if test -n "$1"; then
+	  realname=$1
+	  shift
+
+	  srcname=$realname
+	  test -n "$relink_command" && srcname=${realname}T
+
+	  # Install the shared library and build the symlinks.
+	  func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
+	      'exit $?'
+	  tstripme=$stripme
+	  case $host_os in
+	  cygwin* | mingw* | pw32* | cegcc*)
+	    case $realname in
+	    *.dll.a)
+	      tstripme=
+	      ;;
+	    esac
+	    ;;
+	  os2*)
+	    case $realname in
+	    *_dll.a)
+	      tstripme=
+	      ;;
+	    esac
+	    ;;
+	  esac
+	  if test -n "$tstripme" && test -n "$striplib"; then
+	    func_show_eval "$striplib $destdir/$realname" 'exit $?'
+	  fi
+
+	  if test "$#" -gt 0; then
+	    # Delete the old symlinks, and create new ones.
+	    # Try 'ln -sf' first, because the 'ln' binary might depend on
+	    # the symlink we replace!  Solaris /bin/ln does not understand -f,
+	    # so we also need to try rm && ln -s.
+	    for linkname
+	    do
+	      test "$linkname" != "$realname" \
+		&& func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
+	    done
+	  fi
+
+	  # Do each command in the postinstall commands.
+	  lib=$destdir/$realname
+	  func_execute_cmds "$postinstall_cmds" 'exit $?'
+	fi
+
+	# Install the pseudo-library for information purposes.
+	func_basename "$file"
+	name=$func_basename_result
+	instname=$dir/${name}i
+	func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
+
+	# Maybe install the static library, too.
+	test -n "$old_library" && func_append staticlibs " $dir/$old_library"
+	;;
+
+      *.lo)
+	# Install (i.e. copy) a libtool object.
+
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile=$destdir/$destname
+	else
+	  func_basename "$file"
+	  destfile=$func_basename_result
+	  destfile=$destdir/$destfile
+	fi
+
+	# Deduce the name of the destination old-style object file.
+	case $destfile in
+	*.lo)
+	  func_lo2o "$destfile"
+	  staticdest=$func_lo2o_result
+	  ;;
+	*.$objext)
+	  staticdest=$destfile
+	  destfile=
+	  ;;
+	*)
+	  func_fatal_help "cannot copy a libtool object to '$destfile'"
+	  ;;
+	esac
+
+	# Install the libtool object if requested.
+	test -n "$destfile" && \
+	  func_show_eval "$install_prog $file $destfile" 'exit $?'
+
+	# Install the old object if enabled.
+	if test yes = "$build_old_libs"; then
+	  # Deduce the name of the old-style object file.
+	  func_lo2o "$file"
+	  staticobj=$func_lo2o_result
+	  func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
+	fi
+	exit $EXIT_SUCCESS
+	;;
+
+      *)
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile=$destdir/$destname
+	else
+	  func_basename "$file"
+	  destfile=$func_basename_result
+	  destfile=$destdir/$destfile
+	fi
+
+	# If the file is missing, and there is a .exe on the end, strip it
+	# because it is most likely a libtool script we actually want to
+	# install
+	stripped_ext=
+	case $file in
+	  *.exe)
+	    if test ! -f "$file"; then
+	      func_stripname '' '.exe' "$file"
+	      file=$func_stripname_result
+	      stripped_ext=.exe
+	    fi
+	    ;;
+	esac
+
+	# Do a test to see if this is really a libtool program.
+	case $host in
+	*cygwin* | *mingw*)
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      wrapper=$func_ltwrapper_scriptname_result
+	    else
+	      func_stripname '' '.exe' "$file"
+	      wrapper=$func_stripname_result
+	    fi
+	    ;;
+	*)
+	    wrapper=$file
+	    ;;
+	esac
+	if func_ltwrapper_script_p "$wrapper"; then
+	  notinst_deplibs=
+	  relink_command=
+
+	  func_source "$wrapper"
+
+	  # Check the variables that should have been set.
+	  test -z "$generated_by_libtool_version" && \
+	    func_fatal_error "invalid libtool wrapper script '$wrapper'"
+
+	  finalize=:
+	  for lib in $notinst_deplibs; do
+	    # Check to see that each library is installed.
+	    libdir=
+	    if test -f "$lib"; then
+	      func_source "$lib"
+	    fi
+	    libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'`
+	    if test -n "$libdir" && test ! -f "$libfile"; then
+	      func_warning "'$lib' has not been installed in '$libdir'"
+	      finalize=false
+	    fi
+	  done
+
+	  relink_command=
+	  func_source "$wrapper"
+
+	  outputname=
+	  if test no = "$fast_install" && test -n "$relink_command"; then
+	    $opt_dry_run || {
+	      if $finalize; then
+	        tmpdir=`func_mktempdir`
+		func_basename "$file$stripped_ext"
+		file=$func_basename_result
+	        outputname=$tmpdir/$file
+	        # Replace the output file specification.
+	        relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
+
+	        $opt_quiet || {
+	          func_quote_for_expand "$relink_command"
+		  eval "func_echo $func_quote_for_expand_result"
+	        }
+	        if eval "$relink_command"; then :
+	          else
+		  func_error "error: relink '$file' with the above command before installing it"
+		  $opt_dry_run || ${RM}r "$tmpdir"
+		  continue
+	        fi
+	        file=$outputname
+	      else
+	        func_warning "cannot relink '$file'"
+	      fi
+	    }
+	  else
+	    # Install the binary that we compiled earlier.
+	    file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
+	  fi
+	fi
+
+	# remove .exe since cygwin /usr/bin/install will append another
+	# one anyway
+	case $install_prog,$host in
+	*/usr/bin/install*,*cygwin*)
+	  case $file:$destfile in
+	  *.exe:*.exe)
+	    # this is ok
+	    ;;
+	  *.exe:*)
+	    destfile=$destfile.exe
+	    ;;
+	  *:*.exe)
+	    func_stripname '' '.exe' "$destfile"
+	    destfile=$func_stripname_result
+	    ;;
+	  esac
+	  ;;
+	esac
+	func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
+	$opt_dry_run || if test -n "$outputname"; then
+	  ${RM}r "$tmpdir"
+	fi
+	;;
+      esac
+    done
+
+    for file in $staticlibs; do
+      func_basename "$file"
+      name=$func_basename_result
+
+      # Set up the ranlib parameters.
+      oldlib=$destdir/$name
+      func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+      tool_oldlib=$func_to_tool_file_result
+
+      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
+
+      if test -n "$stripme" && test -n "$old_striplib"; then
+	func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
+      fi
+
+      # Do each command in the postinstall commands.
+      func_execute_cmds "$old_postinstall_cmds" 'exit $?'
+    done
+
+    test -n "$future_libdirs" && \
+      func_warning "remember to run '$progname --finish$future_libdirs'"
+
+    if test -n "$current_libdirs"; then
+      # Maybe just do a dry run.
+      $opt_dry_run && current_libdirs=" -n$current_libdirs"
+      exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs'
+    else
+      exit $EXIT_SUCCESS
+    fi
+}
+
+test install = "$opt_mode" && func_mode_install ${1+"$@"}
+
+
+# func_generate_dlsyms outputname originator pic_p
+# Extract symbols from dlprefiles and create ${outputname}S.o with
+# a dlpreopen symbol table.
+func_generate_dlsyms ()
+{
+    $debug_cmd
+
+    my_outputname=$1
+    my_originator=$2
+    my_pic_p=${3-false}
+    my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'`
+    my_dlsyms=
+
+    if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+      if test -n "$NM" && test -n "$global_symbol_pipe"; then
+	my_dlsyms=${my_outputname}S.c
+      else
+	func_error "not configured to extract global symbols from dlpreopened files"
+      fi
+    fi
+
+    if test -n "$my_dlsyms"; then
+      case $my_dlsyms in
+      "") ;;
+      *.c)
+	# Discover the nlist of each of the dlfiles.
+	nlist=$output_objdir/$my_outputname.nm
+
+	func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
+
+	# Parse the name list into a source file.
+	func_verbose "creating $output_objdir/$my_dlsyms"
+
+	$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
+/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */
+/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */
+
+#ifdef __cplusplus
+extern \"C\" {
+#endif
+
+#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
+#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
+#endif
+
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
+/* External symbol declarations for the compiler. */\
+"
+
+	if test yes = "$dlself"; then
+	  func_verbose "generating symbol list for '$output'"
+
+	  $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
+
+	  # Add our own program objects to the symbol list.
+	  progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	  for progfile in $progfiles; do
+	    func_to_tool_file "$progfile" func_convert_file_msys_to_w32
+	    func_verbose "extracting global C symbols from '$func_to_tool_file_result'"
+	    $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
+	  done
+
+	  if test -n "$exclude_expsyms"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  if test -n "$export_symbols_regex"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  # Prepare the list of exported symbols
+	  if test -z "$export_symbols"; then
+	    export_symbols=$output_objdir/$outputname.exp
+	    $opt_dry_run || {
+	      $RM $export_symbols
+	      eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
+	      case $host in
+	      *cygwin* | *mingw* | *cegcc* )
+                eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+                eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
+	        ;;
+	      esac
+	    }
+	  else
+	    $opt_dry_run || {
+	      eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
+	      eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	      case $host in
+	        *cygwin* | *mingw* | *cegcc* )
+	          eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+	          eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
+	          ;;
+	      esac
+	    }
+	  fi
+	fi
+
+	for dlprefile in $dlprefiles; do
+	  func_verbose "extracting global C symbols from '$dlprefile'"
+	  func_basename "$dlprefile"
+	  name=$func_basename_result
+          case $host in
+	    *cygwin* | *mingw* | *cegcc* )
+	      # if an import library, we need to obtain dlname
+	      if func_win32_import_lib_p "$dlprefile"; then
+	        func_tr_sh "$dlprefile"
+	        eval "curr_lafile=\$libfile_$func_tr_sh_result"
+	        dlprefile_dlbasename=
+	        if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
+	          # Use subshell, to avoid clobbering current variable values
+	          dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
+	          if test -n "$dlprefile_dlname"; then
+	            func_basename "$dlprefile_dlname"
+	            dlprefile_dlbasename=$func_basename_result
+	          else
+	            # no lafile. user explicitly requested -dlpreopen .
+	            $sharedlib_from_linklib_cmd "$dlprefile"
+	            dlprefile_dlbasename=$sharedlib_from_linklib_result
+	          fi
+	        fi
+	        $opt_dry_run || {
+	          if test -n "$dlprefile_dlbasename"; then
+	            eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
+	          else
+	            func_warning "Could not compute DLL name from $name"
+	            eval '$ECHO ": $name " >> "$nlist"'
+	          fi
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
+	            $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
+	        }
+	      else # not an import lib
+	        $opt_dry_run || {
+	          eval '$ECHO ": $name " >> "$nlist"'
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	        }
+	      fi
+	    ;;
+	    *)
+	      $opt_dry_run || {
+	        eval '$ECHO ": $name " >> "$nlist"'
+	        func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	        eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	      }
+	    ;;
+          esac
+	done
+
+	$opt_dry_run || {
+	  # Make sure we have at least an empty file.
+	  test -f "$nlist" || : > "$nlist"
+
+	  if test -n "$exclude_expsyms"; then
+	    $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
+	    $MV "$nlist"T "$nlist"
+	  fi
+
+	  # Try sorting and uniquifying the output.
+	  if $GREP -v "^: " < "$nlist" |
+	      if sort -k 3 /dev/null 2>&1; then
+		sort -k 3
+	      else
+		sort +2
+	      fi |
+	      uniq > "$nlist"S; then
+	    :
+	  else
+	    $GREP -v "^: " < "$nlist" > "$nlist"S
+	  fi
+
+	  if test -f "$nlist"S; then
+	    eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
+	  else
+	    echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
+	  fi
+
+	  func_show_eval '$RM "${nlist}I"'
+	  if test -n "$global_symbol_to_import"; then
+	    eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I'
+	  fi
+
+	  echo >> "$output_objdir/$my_dlsyms" "\
+
+/* The mapping between symbol names and symbols.  */
+typedef struct {
+  const char *name;
+  void *address;
+} lt_dlsymlist;
+extern LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[];\
+"
+
+	  if test -s "$nlist"I; then
+	    echo >> "$output_objdir/$my_dlsyms" "\
+static void lt_syminit(void)
+{
+  LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols;
+  for (; symbol->name; ++symbol)
+    {"
+	    $SED 's/.*/      if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms"
+	    echo >> "$output_objdir/$my_dlsyms" "\
+    }
+}"
+	  fi
+	  echo >> "$output_objdir/$my_dlsyms" "\
+LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[] =
+{ {\"$my_originator\", (void *) 0},"
+
+	  if test -s "$nlist"I; then
+	    echo >> "$output_objdir/$my_dlsyms" "\
+  {\"@INIT@\", (void *) <_syminit},"
+	  fi
+
+	  case $need_lib_prefix in
+	  no)
+	    eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  *)
+	    eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  esac
+	  echo >> "$output_objdir/$my_dlsyms" "\
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt_${my_prefix}_LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif\
+"
+	} # !$opt_dry_run
+
+	pic_flag_for_symtable=
+	case "$compile_command " in
+	*" -static "*) ;;
+	*)
+	  case $host in
+	  # compiling the symbol table file with pic_flag works around
+	  # a FreeBSD bug that causes programs to crash when -lm is
+	  # linked before any other PIC object.  But we must not use
+	  # pic_flag when linking with -static.  The problem exists in
+	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
+	  *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
+	  *-*-hpux*)
+	    pic_flag_for_symtable=" $pic_flag"  ;;
+	  *)
+	    $my_pic_p && pic_flag_for_symtable=" $pic_flag"
+	    ;;
+	  esac
+	  ;;
+	esac
+	symtab_cflags=
+	for arg in $LTCFLAGS; do
+	  case $arg in
+	  -pie | -fpie | -fPIE) ;;
+	  *) func_append symtab_cflags " $arg" ;;
+	  esac
+	done
+
+	# Now compile the dynamic symbol file.
+	func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
+
+	# Clean up the generated files.
+	func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"'
+
+	# Transform the symbol file into the correct name.
+	symfileobj=$output_objdir/${my_outputname}S.$objext
+	case $host in
+	*cygwin* | *mingw* | *cegcc* )
+	  if test -f "$output_objdir/$my_outputname.def"; then
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	  else
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  fi
+	  ;;
+	*)
+	  compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  ;;
+	esac
+	;;
+      *)
+	func_fatal_error "unknown suffix for '$my_dlsyms'"
+	;;
+      esac
+    else
+      # We keep going just in case the user didn't refer to
+      # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
+      # really was required.
+
+      # Nullify the symbol file.
+      compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
+      finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
+    fi
+}
+
+# func_cygming_gnu_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is a GNU/binutils-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_gnu_implib_p ()
+{
+  $debug_cmd
+
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
+  test -n "$func_cygming_gnu_implib_tmp"
+}
+
+# func_cygming_ms_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is an MS-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_ms_implib_p ()
+{
+  $debug_cmd
+
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
+  test -n "$func_cygming_ms_implib_tmp"
+}
+
+# func_win32_libid arg
+# return the library type of file 'arg'
+#
+# Need a lot of goo to handle *both* DLLs and import libs
+# Has to be a shell function in order to 'eat' the argument
+# that is supplied when $file_magic_command is called.
+# Despite the name, also deal with 64 bit binaries.
+func_win32_libid ()
+{
+  $debug_cmd
+
+  win32_libid_type=unknown
+  win32_fileres=`file -L $1 2>/dev/null`
+  case $win32_fileres in
+  *ar\ archive\ import\ library*) # definitely import
+    win32_libid_type="x86 archive import"
+    ;;
+  *ar\ archive*) # could be an import, or static
+    # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
+    if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
+       $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
+      case $nm_interface in
+      "MS dumpbin")
+	if func_cygming_ms_implib_p "$1" ||
+	   func_cygming_gnu_implib_p "$1"
+	then
+	  win32_nmres=import
+	else
+	  win32_nmres=
+	fi
+	;;
+      *)
+	func_to_tool_file "$1" func_convert_file_msys_to_w32
+	win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
+	  $SED -n -e '
+	    1,100{
+		/ I /{
+		    s|.*|import|
+		    p
+		    q
+		}
+	    }'`
+	;;
+      esac
+      case $win32_nmres in
+      import*)  win32_libid_type="x86 archive import";;
+      *)        win32_libid_type="x86 archive static";;
+      esac
+    fi
+    ;;
+  *DLL*)
+    win32_libid_type="x86 DLL"
+    ;;
+  *executable*) # but shell scripts are "executable" too...
+    case $win32_fileres in
+    *MS\ Windows\ PE\ Intel*)
+      win32_libid_type="x86 DLL"
+      ;;
+    esac
+    ;;
+  esac
+  $ECHO "$win32_libid_type"
+}
+
+# func_cygming_dll_for_implib ARG
+#
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib ()
+{
+  $debug_cmd
+
+  sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
+}
+
+# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
+#
+# The is the core of a fallback implementation of a
+# platform-specific function to extract the name of the
+# DLL associated with the specified import library LIBNAME.
+#
+# SECTION_NAME is either .idata$6 or .idata$7, depending
+# on the platform and compiler that created the implib.
+#
+# Echos the name of the DLL associated with the
+# specified import library.
+func_cygming_dll_for_implib_fallback_core ()
+{
+  $debug_cmd
+
+  match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
+  $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
+    $SED '/^Contents of section '"$match_literal"':/{
+      # Place marker at beginning of archive member dllname section
+      s/.*/====MARK====/
+      p
+      d
+    }
+    # These lines can sometimes be longer than 43 characters, but
+    # are always uninteresting
+    /:[	 ]*file format pe[i]\{,1\}-/d
+    /^In archive [^:]*:/d
+    # Ensure marker is printed
+    /^====MARK====/p
+    # Remove all lines with less than 43 characters
+    /^.\{43\}/!d
+    # From remaining lines, remove first 43 characters
+    s/^.\{43\}//' |
+    $SED -n '
+      # Join marker and all lines until next marker into a single line
+      /^====MARK====/ b para
+      H
+      $ b para
+      b
+      :para
+      x
+      s/\n//g
+      # Remove the marker
+      s/^====MARK====//
+      # Remove trailing dots and whitespace
+      s/[\. \t]*$//
+      # Print
+      /./p' |
+    # we now have a list, one entry per line, of the stringified
+    # contents of the appropriate section of all members of the
+    # archive that possess that section. Heuristic: eliminate
+    # all those that have a first or second character that is
+    # a '.' (that is, objdump's representation of an unprintable
+    # character.) This should work for all archives with less than
+    # 0x302f exports -- but will fail for DLLs whose name actually
+    # begins with a literal '.' or a single character followed by
+    # a '.'.
+    #
+    # Of those that remain, print the first one.
+    $SED -e '/^\./d;/^.\./d;q'
+}
+
+# func_cygming_dll_for_implib_fallback ARG
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+#
+# This fallback implementation is for use when $DLLTOOL
+# does not support the --identify-strict option.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib_fallback ()
+{
+  $debug_cmd
+
+  if func_cygming_gnu_implib_p "$1"; then
+    # binutils import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
+  elif func_cygming_ms_implib_p "$1"; then
+    # ms-generated import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
+  else
+    # unknown
+    sharedlib_from_linklib_result=
+  fi
+}
+
+
+# func_extract_an_archive dir oldlib
+func_extract_an_archive ()
+{
+    $debug_cmd
+
+    f_ex_an_ar_dir=$1; shift
+    f_ex_an_ar_oldlib=$1
+    if test yes = "$lock_old_archive_extraction"; then
+      lockfile=$f_ex_an_ar_oldlib.lock
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    fi
+    func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
+		   'stat=$?; rm -f "$lockfile"; exit $stat'
+    if test yes = "$lock_old_archive_extraction"; then
+      $opt_dry_run || rm -f "$lockfile"
+    fi
+    if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
+     :
+    else
+      func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
+    fi
+}
+
+
+# func_extract_archives gentop oldlib ...
+func_extract_archives ()
+{
+    $debug_cmd
+
+    my_gentop=$1; shift
+    my_oldlibs=${1+"$@"}
+    my_oldobjs=
+    my_xlib=
+    my_xabs=
+    my_xdir=
+
+    for my_xlib in $my_oldlibs; do
+      # Extract the objects.
+      case $my_xlib in
+	[\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;;
+	*) my_xabs=`pwd`"/$my_xlib" ;;
+      esac
+      func_basename "$my_xlib"
+      my_xlib=$func_basename_result
+      my_xlib_u=$my_xlib
+      while :; do
+        case " $extracted_archives " in
+	*" $my_xlib_u "*)
+	  func_arith $extracted_serial + 1
+	  extracted_serial=$func_arith_result
+	  my_xlib_u=lt$extracted_serial-$my_xlib ;;
+	*) break ;;
+	esac
+      done
+      extracted_archives="$extracted_archives $my_xlib_u"
+      my_xdir=$my_gentop/$my_xlib_u
+
+      func_mkdir_p "$my_xdir"
+
+      case $host in
+      *-darwin*)
+	func_verbose "Extracting $my_xabs"
+	# Do not bother doing anything if just a dry run
+	$opt_dry_run || {
+	  darwin_orig_dir=`pwd`
+	  cd $my_xdir || exit $?
+	  darwin_archive=$my_xabs
+	  darwin_curdir=`pwd`
+	  func_basename "$darwin_archive"
+	  darwin_base_archive=$func_basename_result
+	  darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
+	  if test -n "$darwin_arches"; then
+	    darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
+	    darwin_arch=
+	    func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
+	    for darwin_arch in  $darwin_arches; do
+	      func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch"
+	      $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive"
+	      cd "unfat-$$/$darwin_base_archive-$darwin_arch"
+	      func_extract_an_archive "`pwd`" "$darwin_base_archive"
+	      cd "$darwin_curdir"
+	      $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive"
+	    done # $darwin_arches
+            ## Okay now we've a bunch of thin objects, gotta fatten them up :)
+	    darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u`
+	    darwin_file=
+	    darwin_files=
+	    for darwin_file in $darwin_filelist; do
+	      darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
+	      $LIPO -create -output "$darwin_file" $darwin_files
+	    done # $darwin_filelist
+	    $RM -rf unfat-$$
+	    cd "$darwin_orig_dir"
+	  else
+	    cd $darwin_orig_dir
+	    func_extract_an_archive "$my_xdir" "$my_xabs"
+	  fi # $darwin_arches
+	} # !$opt_dry_run
+	;;
+      *)
+        func_extract_an_archive "$my_xdir" "$my_xabs"
+	;;
+      esac
+      my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
+    done
+
+    func_extract_archives_result=$my_oldobjs
+}
+
+
+# func_emit_wrapper [arg=no]
+#
+# Emit a libtool wrapper script on stdout.
+# Don't directly open a file because we may want to
+# incorporate the script contents within a cygwin/mingw
+# wrapper executable.  Must ONLY be called from within
+# func_mode_link because it depends on a number of variables
+# set therein.
+#
+# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
+# variable will take.  If 'yes', then the emitted script
+# will assume that the directory where it is stored is
+# the $objdir directory.  This is a cygwin/mingw-specific
+# behavior.
+func_emit_wrapper ()
+{
+	func_emit_wrapper_arg1=${1-no}
+
+	$ECHO "\
+#! $SHELL
+
+# $output - temporary wrapper script for $objdir/$outputname
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# The $output program cannot be directly executed until all the libtool
+# libraries that it depends on are installed.
+#
+# This wrapper script should never be moved out of the build directory.
+# If it is, it will not operate correctly.
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='$sed_quote_subst'
+
+# Be Bourne compatible
+if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+relink_command=\"$relink_command\"
+
+# This environment variable determines our operation mode.
+if test \"\$libtool_install_magic\" = \"$magic\"; then
+  # install mode needs the following variables:
+  generated_by_libtool_version='$macro_version'
+  notinst_deplibs='$notinst_deplibs'
+else
+  # When we are sourced in execute mode, \$file and \$ECHO are already set.
+  if test \"\$libtool_execute_magic\" != \"$magic\"; then
+    file=\"\$0\""
+
+    qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
+    $ECHO "\
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+    ECHO=\"$qECHO\"
+  fi
+
+# Very basic option parsing. These options are (a) specific to
+# the libtool wrapper, (b) are identical between the wrapper
+# /script/ and the wrapper /executable/ that is used only on
+# windows platforms, and (c) all begin with the string "--lt-"
+# (application programs are unlikely to have options that match
+# this pattern).
+#
+# There are only two supported options: --lt-debug and
+# --lt-dump-script. There is, deliberately, no --lt-help.
+#
+# The first argument to this parsing function should be the
+# script's $0 value, followed by "$@".
+lt_option_debug=
+func_parse_lt_options ()
+{
+  lt_script_arg0=\$0
+  shift
+  for lt_opt
+  do
+    case \"\$lt_opt\" in
+    --lt-debug) lt_option_debug=1 ;;
+    --lt-dump-script)
+        lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
+        test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
+        lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
+        cat \"\$lt_dump_D/\$lt_dump_F\"
+        exit 0
+      ;;
+    --lt-*)
+        \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
+        exit 1
+      ;;
+    esac
+  done
+
+  # Print the debug banner immediately:
+  if test -n \"\$lt_option_debug\"; then
+    echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2
+  fi
+}
+
+# Used when --lt-debug. Prints its arguments to stdout
+# (redirection is the responsibility of the caller)
+func_lt_dump_args ()
+{
+  lt_dump_args_N=1;
+  for lt_arg
+  do
+    \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\"
+    lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
+  done
+}
+
+# Core function for launching the target application
+func_exec_program_core ()
+{
+"
+  case $host in
+  # Backslashes separate directories on plain windows
+  *-*-mingw | *-*-os2* | *-cegcc*)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
+"
+    ;;
+
+  *)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir/\$program\" \${1+\"\$@\"}
+"
+    ;;
+  esac
+  $ECHO "\
+      \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
+      exit 1
+}
+
+# A function to encapsulate launching the target application
+# Strips options in the --lt-* namespace from \$@ and
+# launches target application with the remaining arguments.
+func_exec_program ()
+{
+  case \" \$* \" in
+  *\\ --lt-*)
+    for lt_wr_arg
+    do
+      case \$lt_wr_arg in
+      --lt-*) ;;
+      *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
+      esac
+      shift
+    done ;;
+  esac
+  func_exec_program_core \${1+\"\$@\"}
+}
+
+  # Parse options
+  func_parse_lt_options \"\$0\" \${1+\"\$@\"}
+
+  # Find the directory that this script lives in.
+  thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
+  test \"x\$thisdir\" = \"x\$file\" && thisdir=.
+
+  # Follow symbolic links until we get to the real thisdir.
+  file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
+  while test -n \"\$file\"; do
+    destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`
+
+    # If there was a directory component, then change thisdir.
+    if test \"x\$destdir\" != \"x\$file\"; then
+      case \"\$destdir\" in
+      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
+      *) thisdir=\"\$thisdir/\$destdir\" ;;
+      esac
+    fi
+
+    file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
+    file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
+  done
+
+  # Usually 'no', except on cygwin/mingw when embedded into
+  # the cwrapper.
+  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
+  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
+    # special case for '.'
+    if test \"\$thisdir\" = \".\"; then
+      thisdir=\`pwd\`
+    fi
+    # remove .libs from thisdir
+    case \"\$thisdir\" in
+    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
+    $objdir )   thisdir=. ;;
+    esac
+  fi
+
+  # Try to get the absolute directory name.
+  absdir=\`cd \"\$thisdir\" && pwd\`
+  test -n \"\$absdir\" && thisdir=\"\$absdir\"
+"
+
+	if test yes = "$fast_install"; then
+	  $ECHO "\
+  program=lt-'$outputname'$exeext
+  progdir=\"\$thisdir/$objdir\"
+
+  if test ! -f \"\$progdir/\$program\" ||
+     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\
+       test \"X\$file\" != \"X\$progdir/\$program\"; }; then
+
+    file=\"\$\$-\$program\"
+
+    if test ! -d \"\$progdir\"; then
+      $MKDIR \"\$progdir\"
+    else
+      $RM \"\$progdir/\$file\"
+    fi"
+
+	  $ECHO "\
+
+    # relink executable if necessary
+    if test -n \"\$relink_command\"; then
+      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
+      else
+	\$ECHO \"\$relink_command_output\" >&2
+	$RM \"\$progdir/\$file\"
+	exit 1
+      fi
+    fi
+
+    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
+    { $RM \"\$progdir/\$program\";
+      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
+    $RM \"\$progdir/\$file\"
+  fi"
+	else
+	  $ECHO "\
+  program='$outputname'
+  progdir=\"\$thisdir/$objdir\"
+"
+	fi
+
+	$ECHO "\
+
+  if test -f \"\$progdir/\$program\"; then"
+
+	# fixup the dll searchpath if we need to.
+	#
+	# Fix the DLL searchpath if we need to.  Do this before prepending
+	# to shlibpath, because on Windows, both are PATH and uninstalled
+	# libraries must come first.
+	if test -n "$dllsearchpath"; then
+	  $ECHO "\
+    # Add the dll search path components to the executable PATH
+    PATH=$dllsearchpath:\$PATH
+"
+	fi
+
+	# Export our shlibpath_var if we have one.
+	if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+	  $ECHO "\
+    # Add our own library path to $shlibpath_var
+    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
+
+    # Some systems cannot cope with colon-terminated $shlibpath_var
+    # The second colon is a workaround for a bug in BeOS R4 sed
+    $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`
+
+    export $shlibpath_var
+"
+	fi
+
+	$ECHO "\
+    if test \"\$libtool_execute_magic\" != \"$magic\"; then
+      # Run the actual program with our arguments.
+      func_exec_program \${1+\"\$@\"}
+    fi
+  else
+    # The program doesn't exist.
+    \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2
+    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
+    \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
+    exit 1
+  fi
+fi\
+"
+}
+
+
+# func_emit_cwrapperexe_src
+# emit the source code for a wrapper executable on stdout
+# Must ONLY be called from within func_mode_link because
+# it depends on a number of variable set therein.
+func_emit_cwrapperexe_src ()
+{
+	cat <
+#include 
+#ifdef _MSC_VER
+# include 
+# include 
+# include 
+#else
+# include 
+# include 
+# ifdef __CYGWIN__
+#  include 
+# endif
+#endif
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
+/* declarations of non-ANSI functions */
+#if defined __MINGW32__
+# ifdef __STRICT_ANSI__
+int _putenv (const char *);
+# endif
+#elif defined __CYGWIN__
+# ifdef __STRICT_ANSI__
+char *realpath (const char *, char *);
+int putenv (char *);
+int setenv (const char *, const char *, int);
+# endif
+/* #elif defined other_platform || defined ... */
+#endif
+
+/* portability defines, excluding path handling macros */
+#if defined _MSC_VER
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+# define S_IXUSR _S_IEXEC
+#elif defined __MINGW32__
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+#elif defined __CYGWIN__
+# define HAVE_SETENV
+# define FOPEN_WB "wb"
+/* #elif defined other platforms ... */
+#endif
+
+#if defined PATH_MAX
+# define LT_PATHMAX PATH_MAX
+#elif defined MAXPATHLEN
+# define LT_PATHMAX MAXPATHLEN
+#else
+# define LT_PATHMAX 1024
+#endif
+
+#ifndef S_IXOTH
+# define S_IXOTH 0
+#endif
+#ifndef S_IXGRP
+# define S_IXGRP 0
+#endif
+
+/* path handling portability macros */
+#ifndef DIR_SEPARATOR
+# define DIR_SEPARATOR '/'
+# define PATH_SEPARATOR ':'
+#endif
+
+#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \
+  defined __OS2__
+# define HAVE_DOS_BASED_FILE_SYSTEM
+# define FOPEN_WB "wb"
+# ifndef DIR_SEPARATOR_2
+#  define DIR_SEPARATOR_2 '\\'
+# endif
+# ifndef PATH_SEPARATOR_2
+#  define PATH_SEPARATOR_2 ';'
+# endif
+#endif
+
+#ifndef DIR_SEPARATOR_2
+# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
+#else /* DIR_SEPARATOR_2 */
+# define IS_DIR_SEPARATOR(ch) \
+	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
+#endif /* DIR_SEPARATOR_2 */
+
+#ifndef PATH_SEPARATOR_2
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
+#else /* PATH_SEPARATOR_2 */
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
+#endif /* PATH_SEPARATOR_2 */
+
+#ifndef FOPEN_WB
+# define FOPEN_WB "w"
+#endif
+#ifndef _O_BINARY
+# define _O_BINARY 0
+#endif
+
+#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
+#define XFREE(stale) do { \
+  if (stale) { free (stale); stale = 0; } \
+} while (0)
+
+#if defined LT_DEBUGWRAPPER
+static int lt_debug = 1;
+#else
+static int lt_debug = 0;
+#endif
+
+const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */
+
+void *xmalloc (size_t num);
+char *xstrdup (const char *string);
+const char *base_name (const char *name);
+char *find_executable (const char *wrapper);
+char *chase_symlinks (const char *pathspec);
+int make_executable (const char *path);
+int check_executable (const char *path);
+char *strendzap (char *str, const char *pat);
+void lt_debugprintf (const char *file, int line, const char *fmt, ...);
+void lt_fatal (const char *file, int line, const char *message, ...);
+static const char *nonnull (const char *s);
+static const char *nonempty (const char *s);
+void lt_setenv (const char *name, const char *value);
+char *lt_extend_str (const char *orig_value, const char *add, int to_end);
+void lt_update_exe_path (const char *name, const char *value);
+void lt_update_lib_path (const char *name, const char *value);
+char **prepare_spawn (char **argv);
+void lt_dump_script (FILE *f);
+EOF
+
+	    cat <= 0)
+      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+    return 1;
+  else
+    return 0;
+}
+
+int
+make_executable (const char *path)
+{
+  int rval = 0;
+  struct stat st;
+
+  lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
+                  nonempty (path));
+  if ((!path) || (!*path))
+    return 0;
+
+  if (stat (path, &st) >= 0)
+    {
+      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
+    }
+  return rval;
+}
+
+/* Searches for the full path of the wrapper.  Returns
+   newly allocated full path name if found, NULL otherwise
+   Does not chase symlinks, even on platforms that support them.
+*/
+char *
+find_executable (const char *wrapper)
+{
+  int has_slash = 0;
+  const char *p;
+  const char *p_next;
+  /* static buffer for getcwd */
+  char tmp[LT_PATHMAX + 1];
+  size_t tmp_len;
+  char *concat_name;
+
+  lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
+                  nonempty (wrapper));
+
+  if ((wrapper == NULL) || (*wrapper == '\0'))
+    return NULL;
+
+  /* Absolute path? */
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
+    {
+      concat_name = xstrdup (wrapper);
+      if (check_executable (concat_name))
+	return concat_name;
+      XFREE (concat_name);
+    }
+  else
+    {
+#endif
+      if (IS_DIR_SEPARATOR (wrapper[0]))
+	{
+	  concat_name = xstrdup (wrapper);
+	  if (check_executable (concat_name))
+	    return concat_name;
+	  XFREE (concat_name);
+	}
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+    }
+#endif
+
+  for (p = wrapper; *p; p++)
+    if (*p == '/')
+      {
+	has_slash = 1;
+	break;
+      }
+  if (!has_slash)
+    {
+      /* no slashes; search PATH */
+      const char *path = getenv ("PATH");
+      if (path != NULL)
+	{
+	  for (p = path; *p; p = p_next)
+	    {
+	      const char *q;
+	      size_t p_len;
+	      for (q = p; *q; q++)
+		if (IS_PATH_SEPARATOR (*q))
+		  break;
+	      p_len = (size_t) (q - p);
+	      p_next = (*q == '\0' ? q : q + 1);
+	      if (p_len == 0)
+		{
+		  /* empty path: current directory */
+		  if (getcwd (tmp, LT_PATHMAX) == NULL)
+		    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+                              nonnull (strerror (errno)));
+		  tmp_len = strlen (tmp);
+		  concat_name =
+		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, tmp, tmp_len);
+		  concat_name[tmp_len] = '/';
+		  strcpy (concat_name + tmp_len + 1, wrapper);
+		}
+	      else
+		{
+		  concat_name =
+		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, p, p_len);
+		  concat_name[p_len] = '/';
+		  strcpy (concat_name + p_len + 1, wrapper);
+		}
+	      if (check_executable (concat_name))
+		return concat_name;
+	      XFREE (concat_name);
+	    }
+	}
+      /* not found in PATH; assume curdir */
+    }
+  /* Relative path | not found in path: prepend cwd */
+  if (getcwd (tmp, LT_PATHMAX) == NULL)
+    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+              nonnull (strerror (errno)));
+  tmp_len = strlen (tmp);
+  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+  memcpy (concat_name, tmp, tmp_len);
+  concat_name[tmp_len] = '/';
+  strcpy (concat_name + tmp_len + 1, wrapper);
+
+  if (check_executable (concat_name))
+    return concat_name;
+  XFREE (concat_name);
+  return NULL;
+}
+
+char *
+chase_symlinks (const char *pathspec)
+{
+#ifndef S_ISLNK
+  return xstrdup (pathspec);
+#else
+  char buf[LT_PATHMAX];
+  struct stat s;
+  char *tmp_pathspec = xstrdup (pathspec);
+  char *p;
+  int has_symlinks = 0;
+  while (strlen (tmp_pathspec) && !has_symlinks)
+    {
+      lt_debugprintf (__FILE__, __LINE__,
+		      "checking path component for symlinks: %s\n",
+		      tmp_pathspec);
+      if (lstat (tmp_pathspec, &s) == 0)
+	{
+	  if (S_ISLNK (s.st_mode) != 0)
+	    {
+	      has_symlinks = 1;
+	      break;
+	    }
+
+	  /* search backwards for last DIR_SEPARATOR */
+	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
+	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    p--;
+	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    {
+	      /* no more DIR_SEPARATORS left */
+	      break;
+	    }
+	  *p = '\0';
+	}
+      else
+	{
+	  lt_fatal (__FILE__, __LINE__,
+		    "error accessing file \"%s\": %s",
+		    tmp_pathspec, nonnull (strerror (errno)));
+	}
+    }
+  XFREE (tmp_pathspec);
+
+  if (!has_symlinks)
+    {
+      return xstrdup (pathspec);
+    }
+
+  tmp_pathspec = realpath (pathspec, buf);
+  if (tmp_pathspec == 0)
+    {
+      lt_fatal (__FILE__, __LINE__,
+		"could not follow symlinks for %s", pathspec);
+    }
+  return xstrdup (tmp_pathspec);
+#endif
+}
+
+char *
+strendzap (char *str, const char *pat)
+{
+  size_t len, patlen;
+
+  assert (str != NULL);
+  assert (pat != NULL);
+
+  len = strlen (str);
+  patlen = strlen (pat);
+
+  if (patlen <= len)
+    {
+      str += len - patlen;
+      if (STREQ (str, pat))
+	*str = '\0';
+    }
+  return str;
+}
+
+void
+lt_debugprintf (const char *file, int line, const char *fmt, ...)
+{
+  va_list args;
+  if (lt_debug)
+    {
+      (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
+      va_start (args, fmt);
+      (void) vfprintf (stderr, fmt, args);
+      va_end (args);
+    }
+}
+
+static void
+lt_error_core (int exit_status, const char *file,
+	       int line, const char *mode,
+	       const char *message, va_list ap)
+{
+  fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
+  vfprintf (stderr, message, ap);
+  fprintf (stderr, ".\n");
+
+  if (exit_status >= 0)
+    exit (exit_status);
+}
+
+void
+lt_fatal (const char *file, int line, const char *message, ...)
+{
+  va_list ap;
+  va_start (ap, message);
+  lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
+  va_end (ap);
+}
+
+static const char *
+nonnull (const char *s)
+{
+  return s ? s : "(null)";
+}
+
+static const char *
+nonempty (const char *s)
+{
+  return (s && !*s) ? "(empty)" : nonnull (s);
+}
+
+void
+lt_setenv (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_setenv) setting '%s' to '%s'\n",
+                  nonnull (name), nonnull (value));
+  {
+#ifdef HAVE_SETENV
+    /* always make a copy, for consistency with !HAVE_SETENV */
+    char *str = xstrdup (value);
+    setenv (name, str, 1);
+#else
+    size_t len = strlen (name) + 1 + strlen (value) + 1;
+    char *str = XMALLOC (char, len);
+    sprintf (str, "%s=%s", name, value);
+    if (putenv (str) != EXIT_SUCCESS)
+      {
+        XFREE (str);
+      }
+#endif
+  }
+}
+
+char *
+lt_extend_str (const char *orig_value, const char *add, int to_end)
+{
+  char *new_value;
+  if (orig_value && *orig_value)
+    {
+      size_t orig_value_len = strlen (orig_value);
+      size_t add_len = strlen (add);
+      new_value = XMALLOC (char, add_len + orig_value_len + 1);
+      if (to_end)
+        {
+          strcpy (new_value, orig_value);
+          strcpy (new_value + orig_value_len, add);
+        }
+      else
+        {
+          strcpy (new_value, add);
+          strcpy (new_value + add_len, orig_value);
+        }
+    }
+  else
+    {
+      new_value = xstrdup (add);
+    }
+  return new_value;
+}
+
+void
+lt_update_exe_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      /* some systems can't cope with a ':'-terminated path #' */
+      size_t len = strlen (new_value);
+      while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
+        {
+          new_value[--len] = '\0';
+        }
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+void
+lt_update_lib_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+EOF
+	    case $host_os in
+	      mingw*)
+		cat <<"EOF"
+
+/* Prepares an argument vector before calling spawn().
+   Note that spawn() does not by itself call the command interpreter
+     (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
+      ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+         GetVersionEx(&v);
+         v.dwPlatformId == VER_PLATFORM_WIN32_NT;
+      }) ? "cmd.exe" : "command.com").
+   Instead it simply concatenates the arguments, separated by ' ', and calls
+   CreateProcess().  We must quote the arguments since Win32 CreateProcess()
+   interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
+   special way:
+   - Space and tab are interpreted as delimiters. They are not treated as
+     delimiters if they are surrounded by double quotes: "...".
+   - Unescaped double quotes are removed from the input. Their only effect is
+     that within double quotes, space and tab are treated like normal
+     characters.
+   - Backslashes not followed by double quotes are not special.
+   - But 2*n+1 backslashes followed by a double quote become
+     n backslashes followed by a double quote (n >= 0):
+       \" -> "
+       \\\" -> \"
+       \\\\\" -> \\"
+ */
+#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+char **
+prepare_spawn (char **argv)
+{
+  size_t argc;
+  char **new_argv;
+  size_t i;
+
+  /* Count number of arguments.  */
+  for (argc = 0; argv[argc] != NULL; argc++)
+    ;
+
+  /* Allocate new argument vector.  */
+  new_argv = XMALLOC (char *, argc + 1);
+
+  /* Put quoted arguments into the new argument vector.  */
+  for (i = 0; i < argc; i++)
+    {
+      const char *string = argv[i];
+
+      if (string[0] == '\0')
+	new_argv[i] = xstrdup ("\"\"");
+      else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
+	{
+	  int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
+	  size_t length;
+	  unsigned int backslashes;
+	  const char *s;
+	  char *quoted_string;
+	  char *p;
+
+	  length = 0;
+	  backslashes = 0;
+	  if (quote_around)
+	    length++;
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		length += backslashes + 1;
+	      length++;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    length += backslashes + 1;
+
+	  quoted_string = XMALLOC (char, length + 1);
+
+	  p = quoted_string;
+	  backslashes = 0;
+	  if (quote_around)
+	    *p++ = '"';
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		{
+		  unsigned int j;
+		  for (j = backslashes + 1; j > 0; j--)
+		    *p++ = '\\';
+		}
+	      *p++ = c;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    {
+	      unsigned int j;
+	      for (j = backslashes; j > 0; j--)
+		*p++ = '\\';
+	      *p++ = '"';
+	    }
+	  *p = '\0';
+
+	  new_argv[i] = quoted_string;
+	}
+      else
+	new_argv[i] = (char *) string;
+    }
+  new_argv[argc] = NULL;
+
+  return new_argv;
+}
+EOF
+		;;
+	    esac
+
+            cat <<"EOF"
+void lt_dump_script (FILE* f)
+{
+EOF
+	    func_emit_wrapper yes |
+	      $SED -n -e '
+s/^\(.\{79\}\)\(..*\)/\1\
+\2/
+h
+s/\([\\"]\)/\\\1/g
+s/$/\\n/
+s/\([^\n]*\).*/  fputs ("\1", f);/p
+g
+D'
+            cat <<"EOF"
+}
+EOF
+}
+# end: func_emit_cwrapperexe_src
+
+# func_win32_import_lib_p ARG
+# True if ARG is an import lib, as indicated by $file_magic_cmd
+func_win32_import_lib_p ()
+{
+    $debug_cmd
+
+    case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
+    *import*) : ;;
+    *) false ;;
+    esac
+}
+
+# func_suncc_cstd_abi
+# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!!
+# Several compiler flags select an ABI that is incompatible with the
+# Cstd library. Avoid specifying it if any are in CXXFLAGS.
+func_suncc_cstd_abi ()
+{
+    $debug_cmd
+
+    case " $compile_command " in
+    *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*)
+      suncc_use_cstd_abi=no
+      ;;
+    *)
+      suncc_use_cstd_abi=yes
+      ;;
+    esac
+}
+
+# func_mode_link arg...
+func_mode_link ()
+{
+    $debug_cmd
+
+    case $host in
+    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+      # It is impossible to link a dll without this setting, and
+      # we shouldn't force the makefile maintainer to figure out
+      # what system we are compiling for in order to pass an extra
+      # flag for every libtool invocation.
+      # allow_undefined=no
+
+      # FIXME: Unfortunately, there are problems with the above when trying
+      # to make a dll that has undefined symbols, in which case not
+      # even a static library is built.  For now, we need to specify
+      # -no-undefined on the libtool link line when we can be certain
+      # that all symbols are satisfied, otherwise we get a static library.
+      allow_undefined=yes
+      ;;
+    *)
+      allow_undefined=yes
+      ;;
+    esac
+    libtool_args=$nonopt
+    base_compile="$nonopt $@"
+    compile_command=$nonopt
+    finalize_command=$nonopt
+
+    compile_rpath=
+    finalize_rpath=
+    compile_shlibpath=
+    finalize_shlibpath=
+    convenience=
+    old_convenience=
+    deplibs=
+    old_deplibs=
+    compiler_flags=
+    linker_flags=
+    dllsearchpath=
+    lib_search_path=`pwd`
+    inst_prefix_dir=
+    new_inherited_linker_flags=
+
+    avoid_version=no
+    bindir=
+    dlfiles=
+    dlprefiles=
+    dlself=no
+    export_dynamic=no
+    export_symbols=
+    export_symbols_regex=
+    generated=
+    libobjs=
+    ltlibs=
+    module=no
+    no_install=no
+    objs=
+    os2dllname=
+    non_pic_objects=
+    precious_files_regex=
+    prefer_static_libs=no
+    preload=false
+    prev=
+    prevarg=
+    release=
+    rpath=
+    xrpath=
+    perm_rpath=
+    temp_rpath=
+    thread_safe=no
+    vinfo=
+    vinfo_number=no
+    weak_libs=
+    single_module=$wl-single_module
+    func_infer_tag $base_compile
+
+    # We need to know -static, to get the right output filenames.
+    for arg
+    do
+      case $arg in
+      -shared)
+	test yes != "$build_libtool_libs" \
+	  && func_fatal_configuration "cannot build a shared library"
+	build_old_libs=no
+	break
+	;;
+      -all-static | -static | -static-libtool-libs)
+	case $arg in
+	-all-static)
+	  if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then
+	    func_warning "complete static linking is impossible in this configuration"
+	  fi
+	  if test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	-static)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=built
+	  ;;
+	-static-libtool-libs)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	esac
+	build_libtool_libs=no
+	build_old_libs=yes
+	break
+	;;
+      esac
+    done
+
+    # See if our shared archives depend on static archives.
+    test -n "$old_archive_from_new_cmds" && build_old_libs=yes
+
+    # Go through the arguments, transforming them on the way.
+    while test "$#" -gt 0; do
+      arg=$1
+      shift
+      func_quote_for_eval "$arg"
+      qarg=$func_quote_for_eval_unquoted_result
+      func_append libtool_args " $func_quote_for_eval_result"
+
+      # If the previous option needs an argument, assign it.
+      if test -n "$prev"; then
+	case $prev in
+	output)
+	  func_append compile_command " @OUTPUT@"
+	  func_append finalize_command " @OUTPUT@"
+	  ;;
+	esac
+
+	case $prev in
+	bindir)
+	  bindir=$arg
+	  prev=
+	  continue
+	  ;;
+	dlfiles|dlprefiles)
+	  $preload || {
+	    # Add the symbol object into the linking commands.
+	    func_append compile_command " @SYMFILE@"
+	    func_append finalize_command " @SYMFILE@"
+	    preload=:
+	  }
+	  case $arg in
+	  *.la | *.lo) ;;  # We handle these cases below.
+	  force)
+	    if test no = "$dlself"; then
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  self)
+	    if test dlprefiles = "$prev"; then
+	      dlself=yes
+	    elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then
+	      dlself=yes
+	    else
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  *)
+	    if test dlfiles = "$prev"; then
+	      func_append dlfiles " $arg"
+	    else
+	      func_append dlprefiles " $arg"
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  esac
+	  ;;
+	expsyms)
+	  export_symbols=$arg
+	  test -f "$arg" \
+	    || func_fatal_error "symbol file '$arg' does not exist"
+	  prev=
+	  continue
+	  ;;
+	expsyms_regex)
+	  export_symbols_regex=$arg
+	  prev=
+	  continue
+	  ;;
+	framework)
+	  case $host in
+	    *-*-darwin*)
+	      case "$deplibs " in
+		*" $qarg.ltframework "*) ;;
+		*) func_append deplibs " $qarg.ltframework" # this is fixed later
+		   ;;
+	      esac
+	      ;;
+	  esac
+	  prev=
+	  continue
+	  ;;
+	inst_prefix)
+	  inst_prefix_dir=$arg
+	  prev=
+	  continue
+	  ;;
+	mllvm)
+	  # Clang does not use LLVM to link, so we can simply discard any
+	  # '-mllvm $arg' options when doing the link step.
+	  prev=
+	  continue
+	  ;;
+	objectlist)
+	  if test -f "$arg"; then
+	    save_arg=$arg
+	    moreargs=
+	    for fil in `cat "$save_arg"`
+	    do
+#	      func_append moreargs " $fil"
+	      arg=$fil
+	      # A libtool-controlled object.
+
+	      # Check to see that this really is a libtool object.
+	      if func_lalib_unsafe_p "$arg"; then
+		pic_object=
+		non_pic_object=
+
+		# Read the .lo file
+		func_source "$arg"
+
+		if test -z "$pic_object" ||
+		   test -z "$non_pic_object" ||
+		   test none = "$pic_object" &&
+		   test none = "$non_pic_object"; then
+		  func_fatal_error "cannot find name of object for '$arg'"
+		fi
+
+		# Extract subdirectory from the argument.
+		func_dirname "$arg" "/" ""
+		xdir=$func_dirname_result
+
+		if test none != "$pic_object"; then
+		  # Prepend the subdirectory the object is found in.
+		  pic_object=$xdir$pic_object
+
+		  if test dlfiles = "$prev"; then
+		    if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
+		      func_append dlfiles " $pic_object"
+		      prev=
+		      continue
+		    else
+		      # If libtool objects are unsupported, then we need to preload.
+		      prev=dlprefiles
+		    fi
+		  fi
+
+		  # CHECK ME:  I think I busted this.  -Ossama
+		  if test dlprefiles = "$prev"; then
+		    # Preload the old-style object.
+		    func_append dlprefiles " $pic_object"
+		    prev=
+		  fi
+
+		  # A PIC object.
+		  func_append libobjs " $pic_object"
+		  arg=$pic_object
+		fi
+
+		# Non-PIC object.
+		if test none != "$non_pic_object"; then
+		  # Prepend the subdirectory the object is found in.
+		  non_pic_object=$xdir$non_pic_object
+
+		  # A standard non-PIC object
+		  func_append non_pic_objects " $non_pic_object"
+		  if test -z "$pic_object" || test none = "$pic_object"; then
+		    arg=$non_pic_object
+		  fi
+		else
+		  # If the PIC object exists, use it instead.
+		  # $xdir was prepended to $pic_object above.
+		  non_pic_object=$pic_object
+		  func_append non_pic_objects " $non_pic_object"
+		fi
+	      else
+		# Only an error if not doing a dry-run.
+		if $opt_dry_run; then
+		  # Extract subdirectory from the argument.
+		  func_dirname "$arg" "/" ""
+		  xdir=$func_dirname_result
+
+		  func_lo2o "$arg"
+		  pic_object=$xdir$objdir/$func_lo2o_result
+		  non_pic_object=$xdir$func_lo2o_result
+		  func_append libobjs " $pic_object"
+		  func_append non_pic_objects " $non_pic_object"
+	        else
+		  func_fatal_error "'$arg' is not a valid libtool object"
+		fi
+	      fi
+	    done
+	  else
+	    func_fatal_error "link input file '$arg' does not exist"
+	  fi
+	  arg=$save_arg
+	  prev=
+	  continue
+	  ;;
+	os2dllname)
+	  os2dllname=$arg
+	  prev=
+	  continue
+	  ;;
+	precious_regex)
+	  precious_files_regex=$arg
+	  prev=
+	  continue
+	  ;;
+	release)
+	  release=-$arg
+	  prev=
+	  continue
+	  ;;
+	rpath | xrpath)
+	  # We need an absolute path.
+	  case $arg in
+	  [\\/]* | [A-Za-z]:[\\/]*) ;;
+	  *)
+	    func_fatal_error "only absolute run-paths are allowed"
+	    ;;
+	  esac
+	  if test rpath = "$prev"; then
+	    case "$rpath " in
+	    *" $arg "*) ;;
+	    *) func_append rpath " $arg" ;;
+	    esac
+	  else
+	    case "$xrpath " in
+	    *" $arg "*) ;;
+	    *) func_append xrpath " $arg" ;;
+	    esac
+	  fi
+	  prev=
+	  continue
+	  ;;
+	shrext)
+	  shrext_cmds=$arg
+	  prev=
+	  continue
+	  ;;
+	weak)
+	  func_append weak_libs " $arg"
+	  prev=
+	  continue
+	  ;;
+	xcclinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xcompiler)
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xlinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $wl$qarg"
+	  prev=
+	  func_append compile_command " $wl$qarg"
+	  func_append finalize_command " $wl$qarg"
+	  continue
+	  ;;
+	*)
+	  eval "$prev=\"\$arg\""
+	  prev=
+	  continue
+	  ;;
+	esac
+      fi # test -n "$prev"
+
+      prevarg=$arg
+
+      case $arg in
+      -all-static)
+	if test -n "$link_static_flag"; then
+	  # See comment for -static flag below, for more details.
+	  func_append compile_command " $link_static_flag"
+	  func_append finalize_command " $link_static_flag"
+	fi
+	continue
+	;;
+
+      -allow-undefined)
+	# FIXME: remove this flag sometime in the future.
+	func_fatal_error "'-allow-undefined' must not be used because it is the default"
+	;;
+
+      -avoid-version)
+	avoid_version=yes
+	continue
+	;;
+
+      -bindir)
+	prev=bindir
+	continue
+	;;
+
+      -dlopen)
+	prev=dlfiles
+	continue
+	;;
+
+      -dlpreopen)
+	prev=dlprefiles
+	continue
+	;;
+
+      -export-dynamic)
+	export_dynamic=yes
+	continue
+	;;
+
+      -export-symbols | -export-symbols-regex)
+	if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
+	  func_fatal_error "more than one -exported-symbols argument is not allowed"
+	fi
+	if test X-export-symbols = "X$arg"; then
+	  prev=expsyms
+	else
+	  prev=expsyms_regex
+	fi
+	continue
+	;;
+
+      -framework)
+	prev=framework
+	continue
+	;;
+
+      -inst-prefix-dir)
+	prev=inst_prefix
+	continue
+	;;
+
+      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
+      # so, if we see these flags be careful not to treat them like -L
+      -L[A-Z][A-Z]*:*)
+	case $with_gcc/$host in
+	no/*-*-irix* | /*-*-irix*)
+	  func_append compile_command " $arg"
+	  func_append finalize_command " $arg"
+	  ;;
+	esac
+	continue
+	;;
+
+      -L*)
+	func_stripname "-L" '' "$arg"
+	if test -z "$func_stripname_result"; then
+	  if test "$#" -gt 0; then
+	    func_fatal_error "require no space between '-L' and '$1'"
+	  else
+	    func_fatal_error "need path for '-L' option"
+	  fi
+	fi
+	func_resolve_sysroot "$func_stripname_result"
+	dir=$func_resolve_sysroot_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	*)
+	  absdir=`cd "$dir" && pwd`
+	  test -z "$absdir" && \
+	    func_fatal_error "cannot determine absolute directory name of '$dir'"
+	  dir=$absdir
+	  ;;
+	esac
+	case "$deplibs " in
+	*" -L$dir "* | *" $arg "*)
+	  # Will only happen for absolute or sysroot arguments
+	  ;;
+	*)
+	  # Preserve sysroot, but never include relative directories
+	  case $dir in
+	    [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
+	    *) func_append deplibs " -L$dir" ;;
+	  esac
+	  func_append lib_search_path " $dir"
+	  ;;
+	esac
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$dir:"*) ;;
+	  ::) dllsearchpath=$dir;;
+	  *) func_append dllsearchpath ":$dir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+	continue
+	;;
+
+      -l*)
+	if test X-lc = "X$arg" || test X-lm = "X$arg"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # These systems don't actually have a C or math library (as such)
+	    continue
+	    ;;
+	  *-*-os2*)
+	    # These systems don't actually have a C library (as such)
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
+	    # Do not include libc due to us having libc/libc_r.
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C and math libraries are in the System framework
+	    func_append deplibs " System.ltframework"
+	    continue
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  esac
+	elif test X-lc_r = "X$arg"; then
+	 case $host in
+	 *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
+	   # Do not include libc_r directly, use -pthread flag.
+	   continue
+	   ;;
+	 esac
+	fi
+	func_append deplibs " $arg"
+	continue
+	;;
+
+      -mllvm)
+	prev=mllvm
+	continue
+	;;
+
+      -module)
+	module=yes
+	continue
+	;;
+
+      # Tru64 UNIX uses -model [arg] to determine the layout of C++
+      # classes, name mangling, and exception handling.
+      # Darwin uses the -arch flag to determine output architecture.
+      -model|-arch|-isysroot|--sysroot)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	prev=xcompiler
+	continue
+	;;
+
+      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+      |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	case "$new_inherited_linker_flags " in
+	    *" $arg "*) ;;
+	    * ) func_append new_inherited_linker_flags " $arg" ;;
+	esac
+	continue
+	;;
+
+      -multi_module)
+	single_module=$wl-multi_module
+	continue
+	;;
+
+      -no-fast-install)
+	fast_install=no
+	continue
+	;;
+
+      -no-install)
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
+	  # The PATH hackery in wrapper scripts is required on Windows
+	  # and Darwin in order for the loader to find any dlls it needs.
+	  func_warning "'-no-install' is ignored for $host"
+	  func_warning "assuming '-no-fast-install' instead"
+	  fast_install=no
+	  ;;
+	*) no_install=yes ;;
+	esac
+	continue
+	;;
+
+      -no-undefined)
+	allow_undefined=no
+	continue
+	;;
+
+      -objectlist)
+	prev=objectlist
+	continue
+	;;
+
+      -os2dllname)
+	prev=os2dllname
+	continue
+	;;
+
+      -o) prev=output ;;
+
+      -precious-files-regex)
+	prev=precious_regex
+	continue
+	;;
+
+      -release)
+	prev=release
+	continue
+	;;
+
+      -rpath)
+	prev=rpath
+	continue
+	;;
+
+      -R)
+	prev=xrpath
+	continue
+	;;
+
+      -R*)
+	func_stripname '-R' '' "$arg"
+	dir=$func_stripname_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	=*)
+	  func_stripname '=' '' "$dir"
+	  dir=$lt_sysroot$func_stripname_result
+	  ;;
+	*)
+	  func_fatal_error "only absolute run-paths are allowed"
+	  ;;
+	esac
+	case "$xrpath " in
+	*" $dir "*) ;;
+	*) func_append xrpath " $dir" ;;
+	esac
+	continue
+	;;
+
+      -shared)
+	# The effects of -shared are defined in a previous loop.
+	continue
+	;;
+
+      -shrext)
+	prev=shrext
+	continue
+	;;
+
+      -static | -static-libtool-libs)
+	# The effects of -static are defined in a previous loop.
+	# We used to do the same as -all-static on platforms that
+	# didn't have a PIC flag, but the assumption that the effects
+	# would be equivalent was wrong.  It would break on at least
+	# Digital Unix and AIX.
+	continue
+	;;
+
+      -thread-safe)
+	thread_safe=yes
+	continue
+	;;
+
+      -version-info)
+	prev=vinfo
+	continue
+	;;
+
+      -version-number)
+	prev=vinfo
+	vinfo_number=yes
+	continue
+	;;
+
+      -weak)
+        prev=weak
+	continue
+	;;
+
+      -Wc,*)
+	func_stripname '-Wc,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs=$IFS; IFS=,
+	for flag in $args; do
+	  IFS=$save_ifs
+          func_quote_for_eval "$flag"
+	  func_append arg " $func_quote_for_eval_result"
+	  func_append compiler_flags " $func_quote_for_eval_result"
+	done
+	IFS=$save_ifs
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Wl,*)
+	func_stripname '-Wl,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs=$IFS; IFS=,
+	for flag in $args; do
+	  IFS=$save_ifs
+          func_quote_for_eval "$flag"
+	  func_append arg " $wl$func_quote_for_eval_result"
+	  func_append compiler_flags " $wl$func_quote_for_eval_result"
+	  func_append linker_flags " $func_quote_for_eval_result"
+	done
+	IFS=$save_ifs
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Xcompiler)
+	prev=xcompiler
+	continue
+	;;
+
+      -Xlinker)
+	prev=xlinker
+	continue
+	;;
+
+      -XCClinker)
+	prev=xcclinker
+	continue
+	;;
+
+      # -msg_* for osf cc
+      -msg_*)
+	func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+
+      # Flags to be passed through unchanged, with rationale:
+      # -64, -mips[0-9]      enable 64-bit mode for the SGI compiler
+      # -r[0-9][0-9]*        specify processor for the SGI compiler
+      # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
+      # +DA*, +DD*           enable 64-bit mode for the HP compiler
+      # -q*                  compiler args for the IBM compiler
+      # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
+      # -F/path              path to uninstalled frameworks, gcc on darwin
+      # -p, -pg, --coverage, -fprofile-*  profiling flags for GCC
+      # -fstack-protector*   stack protector flags for GCC
+      # @file                GCC response files
+      # -tp=*                Portland pgcc target processor selection
+      # --sysroot=*          for sysroot support
+      # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+      # -specs=*             GCC specs files
+      # -stdlib=*            select c++ std lib with clang
+      # -fsanitize=*         Clang/GCC memory and address sanitizer
+      # -fuse-ld=*           Linker select flags for GCC
+      # -static-*            direct GCC to link specific libraries statically
+      # -fcilkplus           Cilk Plus language extension features for C/C++
+      -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+      -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+      -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \
+      -specs=*|-fsanitize=*|-fuse-ld=*|-static-*|-fcilkplus)
+        func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+        func_append compile_command " $arg"
+        func_append finalize_command " $arg"
+        func_append compiler_flags " $arg"
+        continue
+        ;;
+
+      -Z*)
+        if test os2 = "`expr $host : '.*\(os2\)'`"; then
+          # OS/2 uses -Zxxx to specify OS/2-specific options
+	  compiler_flags="$compiler_flags $arg"
+	  func_append compile_command " $arg"
+	  func_append finalize_command " $arg"
+	  case $arg in
+	  -Zlinker | -Zstack)
+	    prev=xcompiler
+	    ;;
+	  esac
+	  continue
+        else
+	  # Otherwise treat like 'Some other compiler flag' below
+	  func_quote_for_eval "$arg"
+	  arg=$func_quote_for_eval_result
+        fi
+	;;
+
+      # Some other compiler flag.
+      -* | +*)
+        func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+
+      *.$objext)
+	# A standard object.
+	func_append objs " $arg"
+	;;
+
+      *.lo)
+	# A libtool-controlled object.
+
+	# Check to see that this really is a libtool object.
+	if func_lalib_unsafe_p "$arg"; then
+	  pic_object=
+	  non_pic_object=
+
+	  # Read the .lo file
+	  func_source "$arg"
+
+	  if test -z "$pic_object" ||
+	     test -z "$non_pic_object" ||
+	     test none = "$pic_object" &&
+	     test none = "$non_pic_object"; then
+	    func_fatal_error "cannot find name of object for '$arg'"
+	  fi
+
+	  # Extract subdirectory from the argument.
+	  func_dirname "$arg" "/" ""
+	  xdir=$func_dirname_result
+
+	  test none = "$pic_object" || {
+	    # Prepend the subdirectory the object is found in.
+	    pic_object=$xdir$pic_object
+
+	    if test dlfiles = "$prev"; then
+	      if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
+		func_append dlfiles " $pic_object"
+		prev=
+		continue
+	      else
+		# If libtool objects are unsupported, then we need to preload.
+		prev=dlprefiles
+	      fi
+	    fi
+
+	    # CHECK ME:  I think I busted this.  -Ossama
+	    if test dlprefiles = "$prev"; then
+	      # Preload the old-style object.
+	      func_append dlprefiles " $pic_object"
+	      prev=
+	    fi
+
+	    # A PIC object.
+	    func_append libobjs " $pic_object"
+	    arg=$pic_object
+	  }
+
+	  # Non-PIC object.
+	  if test none != "$non_pic_object"; then
+	    # Prepend the subdirectory the object is found in.
+	    non_pic_object=$xdir$non_pic_object
+
+	    # A standard non-PIC object
+	    func_append non_pic_objects " $non_pic_object"
+	    if test -z "$pic_object" || test none = "$pic_object"; then
+	      arg=$non_pic_object
+	    fi
+	  else
+	    # If the PIC object exists, use it instead.
+	    # $xdir was prepended to $pic_object above.
+	    non_pic_object=$pic_object
+	    func_append non_pic_objects " $non_pic_object"
+	  fi
+	else
+	  # Only an error if not doing a dry-run.
+	  if $opt_dry_run; then
+	    # Extract subdirectory from the argument.
+	    func_dirname "$arg" "/" ""
+	    xdir=$func_dirname_result
+
+	    func_lo2o "$arg"
+	    pic_object=$xdir$objdir/$func_lo2o_result
+	    non_pic_object=$xdir$func_lo2o_result
+	    func_append libobjs " $pic_object"
+	    func_append non_pic_objects " $non_pic_object"
+	  else
+	    func_fatal_error "'$arg' is not a valid libtool object"
+	  fi
+	fi
+	;;
+
+      *.$libext)
+	# An archive.
+	func_append deplibs " $arg"
+	func_append old_deplibs " $arg"
+	continue
+	;;
+
+      *.la)
+	# A libtool-controlled library.
+
+	func_resolve_sysroot "$arg"
+	if test dlfiles = "$prev"; then
+	  # This library was specified with -dlopen.
+	  func_append dlfiles " $func_resolve_sysroot_result"
+	  prev=
+	elif test dlprefiles = "$prev"; then
+	  # The library was specified with -dlpreopen.
+	  func_append dlprefiles " $func_resolve_sysroot_result"
+	  prev=
+	else
+	  func_append deplibs " $func_resolve_sysroot_result"
+	fi
+	continue
+	;;
+
+      # Some other compiler argument.
+      *)
+	# Unknown arguments in both finalize_command and compile_command need
+	# to be aesthetically quoted because they are evaled later.
+	func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+      esac # arg
+
+      # Now actually substitute the argument into the commands.
+      if test -n "$arg"; then
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+      fi
+    done # argument parsing loop
+
+    test -n "$prev" && \
+      func_fatal_help "the '$prevarg' option requires an argument"
+
+    if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then
+      eval arg=\"$export_dynamic_flag_spec\"
+      func_append compile_command " $arg"
+      func_append finalize_command " $arg"
+    fi
+
+    oldlibs=
+    # calculate the name of the file, without its directory
+    func_basename "$output"
+    outputname=$func_basename_result
+    libobjs_save=$libobjs
+
+    if test -n "$shlibpath_var"; then
+      # get the directories listed in $shlibpath_var
+      eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\`
+    else
+      shlib_search_path=
+    fi
+    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
+    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
+
+    # Definition is injected by LT_CONFIG during libtool generation.
+    func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH"
+
+    func_dirname "$output" "/" ""
+    output_objdir=$func_dirname_result$objdir
+    func_to_tool_file "$output_objdir/"
+    tool_output_objdir=$func_to_tool_file_result
+    # Create the object directory.
+    func_mkdir_p "$output_objdir"
+
+    # Determine the type of output
+    case $output in
+    "")
+      func_fatal_help "you must specify an output file"
+      ;;
+    *.$libext) linkmode=oldlib ;;
+    *.lo | *.$objext) linkmode=obj ;;
+    *.la) linkmode=lib ;;
+    *) linkmode=prog ;; # Anything else should be a program.
+    esac
+
+    specialdeplibs=
+
+    libs=
+    # Find all interdependent deplibs by searching for libraries
+    # that are linked more than once (e.g. -la -lb -la)
+    for deplib in $deplibs; do
+      if $opt_preserve_dup_deps; then
+	case "$libs " in
+	*" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	esac
+      fi
+      func_append libs " $deplib"
+    done
+
+    if test lib = "$linkmode"; then
+      libs="$predeps $libs $compiler_lib_search_path $postdeps"
+
+      # Compute libraries that are listed more than once in $predeps
+      # $postdeps and mark them as special (i.e., whose duplicates are
+      # not to be eliminated).
+      pre_post_deps=
+      if $opt_duplicate_compiler_generated_deps; then
+	for pre_post_dep in $predeps $postdeps; do
+	  case "$pre_post_deps " in
+	  *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
+	  esac
+	  func_append pre_post_deps " $pre_post_dep"
+	done
+      fi
+      pre_post_deps=
+    fi
+
+    deplibs=
+    newdependency_libs=
+    newlib_search_path=
+    need_relink=no # whether we're linking any uninstalled libtool libraries
+    notinst_deplibs= # not-installed libtool libraries
+    notinst_path= # paths that contain not-installed libtool libraries
+
+    case $linkmode in
+    lib)
+	passes="conv dlpreopen link"
+	for file in $dlfiles $dlprefiles; do
+	  case $file in
+	  *.la) ;;
+	  *)
+	    func_fatal_help "libraries can '-dlopen' only libtool libraries: $file"
+	    ;;
+	  esac
+	done
+	;;
+    prog)
+	compile_deplibs=
+	finalize_deplibs=
+	alldeplibs=false
+	newdlfiles=
+	newdlprefiles=
+	passes="conv scan dlopen dlpreopen link"
+	;;
+    *)  passes="conv"
+	;;
+    esac
+
+    for pass in $passes; do
+      # The preopen pass in lib mode reverses $deplibs; put it back here
+      # so that -L comes before libs that need it for instance...
+      if test lib,link = "$linkmode,$pass"; then
+	## FIXME: Find the place where the list is rebuilt in the wrong
+	##        order, and fix it there properly
+        tmp_deplibs=
+	for deplib in $deplibs; do
+	  tmp_deplibs="$deplib $tmp_deplibs"
+	done
+	deplibs=$tmp_deplibs
+      fi
+
+      if test lib,link = "$linkmode,$pass" ||
+	 test prog,scan = "$linkmode,$pass"; then
+	libs=$deplibs
+	deplibs=
+      fi
+      if test prog = "$linkmode"; then
+	case $pass in
+	dlopen) libs=$dlfiles ;;
+	dlpreopen) libs=$dlprefiles ;;
+	link)
+	  libs="$deplibs %DEPLIBS%"
+	  test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
+	  ;;
+	esac
+      fi
+      if test lib,dlpreopen = "$linkmode,$pass"; then
+	# Collect and forward deplibs of preopened libtool libs
+	for lib in $dlprefiles; do
+	  # Ignore non-libtool-libs
+	  dependency_libs=
+	  func_resolve_sysroot "$lib"
+	  case $lib in
+	  *.la)	func_source "$func_resolve_sysroot_result" ;;
+	  esac
+
+	  # Collect preopened libtool deplibs, except any this library
+	  # has declared as weak libs
+	  for deplib in $dependency_libs; do
+	    func_basename "$deplib"
+            deplib_base=$func_basename_result
+	    case " $weak_libs " in
+	    *" $deplib_base "*) ;;
+	    *) func_append deplibs " $deplib" ;;
+	    esac
+	  done
+	done
+	libs=$dlprefiles
+      fi
+      if test dlopen = "$pass"; then
+	# Collect dlpreopened libraries
+	save_deplibs=$deplibs
+	deplibs=
+      fi
+
+      for deplib in $libs; do
+	lib=
+	found=false
+	case $deplib in
+	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+        |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+	  if test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    func_append compiler_flags " $deplib"
+	    if test lib = "$linkmode"; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-l*)
+	  if test lib != "$linkmode" && test prog != "$linkmode"; then
+	    func_warning "'-l' is ignored for archives/objects"
+	    continue
+	  fi
+	  func_stripname '-l' '' "$deplib"
+	  name=$func_stripname_result
+	  if test lib = "$linkmode"; then
+	    searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
+	  else
+	    searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
+	  fi
+	  for searchdir in $searchdirs; do
+	    for search_ext in .la $std_shrext .so .a; do
+	      # Search the libtool library
+	      lib=$searchdir/lib$name$search_ext
+	      if test -f "$lib"; then
+		if test .la = "$search_ext"; then
+		  found=:
+		else
+		  found=false
+		fi
+		break 2
+	      fi
+	    done
+	  done
+	  if $found; then
+	    # deplib is a libtool library
+	    # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
+	    # We need to do some special things here, and not later.
+	    if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+	      case " $predeps $postdeps " in
+	      *" $deplib "*)
+		if func_lalib_p "$lib"; then
+		  library_names=
+		  old_library=
+		  func_source "$lib"
+		  for l in $old_library $library_names; do
+		    ll=$l
+		  done
+		  if test "X$ll" = "X$old_library"; then # only static version available
+		    found=false
+		    func_dirname "$lib" "" "."
+		    ladir=$func_dirname_result
+		    lib=$ladir/$old_library
+		    if test prog,link = "$linkmode,$pass"; then
+		      compile_deplibs="$deplib $compile_deplibs"
+		      finalize_deplibs="$deplib $finalize_deplibs"
+		    else
+		      deplibs="$deplib $deplibs"
+		      test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+		    fi
+		    continue
+		  fi
+		fi
+		;;
+	      *) ;;
+	      esac
+	    fi
+	  else
+	    # deplib doesn't seem to be a libtool library
+	    if test prog,link = "$linkmode,$pass"; then
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      deplibs="$deplib $deplibs"
+	      test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    continue
+	  fi
+	  ;; # -l
+	*.ltframework)
+	  if test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    deplibs="$deplib $deplibs"
+	    if test lib = "$linkmode"; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-L*)
+	  case $linkmode in
+	  lib)
+	    deplibs="$deplib $deplibs"
+	    test conv = "$pass" && continue
+	    newdependency_libs="$deplib $newdependency_libs"
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  prog)
+	    if test conv = "$pass"; then
+	      deplibs="$deplib $deplibs"
+	      continue
+	    fi
+	    if test scan = "$pass"; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  *)
+	    func_warning "'-L' is ignored for archives/objects"
+	    ;;
+	  esac # linkmode
+	  continue
+	  ;; # -L
+	-R*)
+	  if test link = "$pass"; then
+	    func_stripname '-R' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    dir=$func_resolve_sysroot_result
+	    # Make sure the xrpath contains only unique directories.
+	    case "$xrpath " in
+	    *" $dir "*) ;;
+	    *) func_append xrpath " $dir" ;;
+	    esac
+	  fi
+	  deplibs="$deplib $deplibs"
+	  continue
+	  ;;
+	*.la)
+	  func_resolve_sysroot "$deplib"
+	  lib=$func_resolve_sysroot_result
+	  ;;
+	*.$libext)
+	  if test conv = "$pass"; then
+	    deplibs="$deplib $deplibs"
+	    continue
+	  fi
+	  case $linkmode in
+	  lib)
+	    # Linking convenience modules into shared libraries is allowed,
+	    # but linking other static libraries is non-portable.
+	    case " $dlpreconveniencelibs " in
+	    *" $deplib "*) ;;
+	    *)
+	      valid_a_lib=false
+	      case $deplibs_check_method in
+		match_pattern*)
+		  set dummy $deplibs_check_method; shift
+		  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+		  if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
+		    | $EGREP "$match_pattern_regex" > /dev/null; then
+		    valid_a_lib=:
+		  fi
+		;;
+		pass_all)
+		  valid_a_lib=:
+		;;
+	      esac
+	      if $valid_a_lib; then
+		echo
+		$ECHO "*** Warning: Linking the shared library $output against the"
+		$ECHO "*** static library $deplib is not portable!"
+		deplibs="$deplib $deplibs"
+	      else
+		echo
+		$ECHO "*** Warning: Trying to link with static lib archive $deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because the file extensions .$libext of this argument makes me believe"
+		echo "*** that it is just a static archive that I should not use here."
+	      fi
+	      ;;
+	    esac
+	    continue
+	    ;;
+	  prog)
+	    if test link != "$pass"; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    continue
+	    ;;
+	  esac # linkmode
+	  ;; # *.$libext
+	*.lo | *.$objext)
+	  if test conv = "$pass"; then
+	    deplibs="$deplib $deplibs"
+	  elif test prog = "$linkmode"; then
+	    if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then
+	      # If there is no dlopen support or we're linking statically,
+	      # we need to preload.
+	      func_append newdlprefiles " $deplib"
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      func_append newdlfiles " $deplib"
+	    fi
+	  fi
+	  continue
+	  ;;
+	%DEPLIBS%)
+	  alldeplibs=:
+	  continue
+	  ;;
+	esac # case $deplib
+
+	$found || test -f "$lib" \
+	  || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'"
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$lib" \
+	  || func_fatal_error "'$lib' is not a valid libtool archive"
+
+	func_dirname "$lib" "" "."
+	ladir=$func_dirname_result
+
+	dlname=
+	dlopen=
+	dlpreopen=
+	libdir=
+	library_names=
+	old_library=
+	inherited_linker_flags=
+	# If the library was installed with an old release of libtool,
+	# it will not redefine variables installed, or shouldnotlink
+	installed=yes
+	shouldnotlink=no
+	avoidtemprpath=
+
+
+	# Read the .la file
+	func_source "$lib"
+
+	# Convert "-framework foo" to "foo.ltframework"
+	if test -n "$inherited_linker_flags"; then
+	  tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
+	  for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
+	    case " $new_inherited_linker_flags " in
+	      *" $tmp_inherited_linker_flag "*) ;;
+	      *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
+	    esac
+	  done
+	fi
+	dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	if test lib,link = "$linkmode,$pass" ||
+	   test prog,scan = "$linkmode,$pass" ||
+	   { test prog != "$linkmode" && test lib != "$linkmode"; }; then
+	  test -n "$dlopen" && func_append dlfiles " $dlopen"
+	  test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
+	fi
+
+	if test conv = "$pass"; then
+	  # Only check for convenience libraries
+	  deplibs="$lib $deplibs"
+	  if test -z "$libdir"; then
+	    if test -z "$old_library"; then
+	      func_fatal_error "cannot find name of link library for '$lib'"
+	    fi
+	    # It is a libtool convenience library, so add in its objects.
+	    func_append convenience " $ladir/$objdir/$old_library"
+	    func_append old_convenience " $ladir/$objdir/$old_library"
+	    tmp_libs=
+	    for deplib in $dependency_libs; do
+	      deplibs="$deplib $deplibs"
+	      if $opt_preserve_dup_deps; then
+		case "$tmp_libs " in
+		*" $deplib "*) func_append specialdeplibs " $deplib" ;;
+		esac
+	      fi
+	      func_append tmp_libs " $deplib"
+	    done
+	  elif test prog != "$linkmode" && test lib != "$linkmode"; then
+	    func_fatal_error "'$lib' is not a convenience library"
+	  fi
+	  continue
+	fi # $pass = conv
+
+
+	# Get the name of the library we link against.
+	linklib=
+	if test -n "$old_library" &&
+	   { test yes = "$prefer_static_libs" ||
+	     test built,no = "$prefer_static_libs,$installed"; }; then
+	  linklib=$old_library
+	else
+	  for l in $old_library $library_names; do
+	    linklib=$l
+	  done
+	fi
+	if test -z "$linklib"; then
+	  func_fatal_error "cannot find name of link library for '$lib'"
+	fi
+
+	# This library was specified with -dlopen.
+	if test dlopen = "$pass"; then
+	  test -z "$libdir" \
+	    && func_fatal_error "cannot -dlopen a convenience library: '$lib'"
+	  if test -z "$dlname" ||
+	     test yes != "$dlopen_support" ||
+	     test no = "$build_libtool_libs"
+	  then
+	    # If there is no dlname, no dlopen support or we're linking
+	    # statically, we need to preload.  We also need to preload any
+	    # dependent libraries so libltdl's deplib preloader doesn't
+	    # bomb out in the load deplibs phase.
+	    func_append dlprefiles " $lib $dependency_libs"
+	  else
+	    func_append newdlfiles " $lib"
+	  fi
+	  continue
+	fi # $pass = dlopen
+
+	# We need an absolute path.
+	case $ladir in
+	[\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;;
+	*)
+	  abs_ladir=`cd "$ladir" && pwd`
+	  if test -z "$abs_ladir"; then
+	    func_warning "cannot determine absolute directory name of '$ladir'"
+	    func_warning "passing it literally to the linker, although it might fail"
+	    abs_ladir=$ladir
+	  fi
+	  ;;
+	esac
+	func_basename "$lib"
+	laname=$func_basename_result
+
+	# Find the relevant object directory and library name.
+	if test yes = "$installed"; then
+	  if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    func_warning "library '$lib' was moved."
+	    dir=$ladir
+	    absdir=$abs_ladir
+	    libdir=$abs_ladir
+	  else
+	    dir=$lt_sysroot$libdir
+	    absdir=$lt_sysroot$libdir
+	  fi
+	  test yes = "$hardcode_automatic" && avoidtemprpath=yes
+	else
+	  if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    dir=$ladir
+	    absdir=$abs_ladir
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  else
+	    dir=$ladir/$objdir
+	    absdir=$abs_ladir/$objdir
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  fi
+	fi # $installed = yes
+	func_stripname 'lib' '.la' "$laname"
+	name=$func_stripname_result
+
+	# This library was specified with -dlpreopen.
+	if test dlpreopen = "$pass"; then
+	  if test -z "$libdir" && test prog = "$linkmode"; then
+	    func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'"
+	  fi
+	  case $host in
+	    # special handling for platforms with PE-DLLs.
+	    *cygwin* | *mingw* | *cegcc* )
+	      # Linker will automatically link against shared library if both
+	      # static and shared are present.  Therefore, ensure we extract
+	      # symbols from the import library if a shared library is present
+	      # (otherwise, the dlopen module name will be incorrect).  We do
+	      # this by putting the import library name into $newdlprefiles.
+	      # We recover the dlopen module name by 'saving' the la file
+	      # name in a special purpose variable, and (later) extracting the
+	      # dlname from the la file.
+	      if test -n "$dlname"; then
+	        func_tr_sh "$dir/$linklib"
+	        eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
+	        func_append newdlprefiles " $dir/$linklib"
+	      else
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      fi
+	    ;;
+	    * )
+	      # Prefer using a static library (so that no silly _DYNAMIC symbols
+	      # are required to link).
+	      if test -n "$old_library"; then
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      # Otherwise, use the dlname, so that lt_dlopen finds it.
+	      elif test -n "$dlname"; then
+	        func_append newdlprefiles " $dir/$dlname"
+	      else
+	        func_append newdlprefiles " $dir/$linklib"
+	      fi
+	    ;;
+	  esac
+	fi # $pass = dlpreopen
+
+	if test -z "$libdir"; then
+	  # Link the convenience library
+	  if test lib = "$linkmode"; then
+	    deplibs="$dir/$old_library $deplibs"
+	  elif test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$dir/$old_library $compile_deplibs"
+	    finalize_deplibs="$dir/$old_library $finalize_deplibs"
+	  else
+	    deplibs="$lib $deplibs" # used for prog,scan pass
+	  fi
+	  continue
+	fi
+
+
+	if test prog = "$linkmode" && test link != "$pass"; then
+	  func_append newlib_search_path " $ladir"
+	  deplibs="$lib $deplibs"
+
+	  linkalldeplibs=false
+	  if test no != "$link_all_deplibs" || test -z "$library_names" ||
+	     test no = "$build_libtool_libs"; then
+	    linkalldeplibs=:
+	  fi
+
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    case $deplib in
+	    -L*) func_stripname '-L' '' "$deplib"
+	         func_resolve_sysroot "$func_stripname_result"
+	         func_append newlib_search_path " $func_resolve_sysroot_result"
+		 ;;
+	    esac
+	    # Need to link against all dependency_libs?
+	    if $linkalldeplibs; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      # Need to hardcode shared library paths
+	      # or/and link against static libraries
+	      newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    if $opt_preserve_dup_deps; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done # for deplib
+	  continue
+	fi # $linkmode = prog...
+
+	if test prog,link = "$linkmode,$pass"; then
+	  if test -n "$library_names" &&
+	     { { test no = "$prefer_static_libs" ||
+	         test built,yes = "$prefer_static_libs,$installed"; } ||
+	       test -z "$old_library"; }; then
+	    # We need to hardcode the library path
+	    if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then
+	      # Make sure the rpath contains only unique directories.
+	      case $temp_rpath: in
+	      *"$absdir:"*) ;;
+	      *) func_append temp_rpath "$absdir:" ;;
+	      esac
+	    fi
+
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi # $linkmode,$pass = prog,link...
+
+	  if $alldeplibs &&
+	     { test pass_all = "$deplibs_check_method" ||
+	       { test yes = "$build_libtool_libs" &&
+		 test -n "$library_names"; }; }; then
+	    # We only need to search for static libraries
+	    continue
+	  fi
+	fi
+
+	link_static=no # Whether the deplib will be linked statically
+	use_static_libs=$prefer_static_libs
+	if test built = "$use_static_libs" && test yes = "$installed"; then
+	  use_static_libs=no
+	fi
+	if test -n "$library_names" &&
+	   { test no = "$use_static_libs" || test -z "$old_library"; }; then
+	  case $host in
+	  *cygwin* | *mingw* | *cegcc* | *os2*)
+	      # No point in relinking DLLs because paths are not encoded
+	      func_append notinst_deplibs " $lib"
+	      need_relink=no
+	    ;;
+	  *)
+	    if test no = "$installed"; then
+	      func_append notinst_deplibs " $lib"
+	      need_relink=yes
+	    fi
+	    ;;
+	  esac
+	  # This is a shared library
+
+	  # Warn about portability, can't link against -module's on some
+	  # systems (darwin).  Don't bleat about dlopened modules though!
+	  dlopenmodule=
+	  for dlpremoduletest in $dlprefiles; do
+	    if test "X$dlpremoduletest" = "X$lib"; then
+	      dlopenmodule=$dlpremoduletest
+	      break
+	    fi
+	  done
+	  if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then
+	    echo
+	    if test prog = "$linkmode"; then
+	      $ECHO "*** Warning: Linking the executable $output against the loadable module"
+	    else
+	      $ECHO "*** Warning: Linking the shared library $output against the loadable module"
+	    fi
+	    $ECHO "*** $linklib is not portable!"
+	  fi
+	  if test lib = "$linkmode" &&
+	     test yes = "$hardcode_into_libs"; then
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi
+
+	  if test -n "$old_archive_from_expsyms_cmds"; then
+	    # figure out the soname
+	    set dummy $library_names
+	    shift
+	    realname=$1
+	    shift
+	    libname=`eval "\\$ECHO \"$libname_spec\""`
+	    # use dlname if we got it. it's perfectly good, no?
+	    if test -n "$dlname"; then
+	      soname=$dlname
+	    elif test -n "$soname_spec"; then
+	      # bleh windows
+	      case $host in
+	      *cygwin* | mingw* | *cegcc* | *os2*)
+	        func_arith $current - $age
+		major=$func_arith_result
+		versuffix=-$major
+		;;
+	      esac
+	      eval soname=\"$soname_spec\"
+	    else
+	      soname=$realname
+	    fi
+
+	    # Make a new name for the extract_expsyms_cmds to use
+	    soroot=$soname
+	    func_basename "$soroot"
+	    soname=$func_basename_result
+	    func_stripname 'lib' '.dll' "$soname"
+	    newlib=libimp-$func_stripname_result.a
+
+	    # If the library has no export list, then create one now
+	    if test -f "$output_objdir/$soname-def"; then :
+	    else
+	      func_verbose "extracting exported symbol list from '$soname'"
+	      func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
+	    fi
+
+	    # Create $newlib
+	    if test -f "$output_objdir/$newlib"; then :; else
+	      func_verbose "generating import library for '$soname'"
+	      func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
+	    fi
+	    # make sure the library variables are pointing to the new library
+	    dir=$output_objdir
+	    linklib=$newlib
+	  fi # test -n "$old_archive_from_expsyms_cmds"
+
+	  if test prog = "$linkmode" || test relink != "$opt_mode"; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    lib_linked=yes
+	    case $hardcode_action in
+	    immediate | unsupported)
+	      if test no = "$hardcode_direct"; then
+		add=$dir/$linklib
+		case $host in
+		  *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;;
+		  *-*-sysv4*uw2*) add_dir=-L$dir ;;
+		  *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
+		    *-*-unixware7*) add_dir=-L$dir ;;
+		  *-*-darwin* )
+		    # if the lib is a (non-dlopened) module then we cannot
+		    # link against it, someone is ignoring the earlier warnings
+		    if /usr/bin/file -L $add 2> /dev/null |
+			 $GREP ": [^:]* bundle" >/dev/null; then
+		      if test "X$dlopenmodule" != "X$lib"; then
+			$ECHO "*** Warning: lib $linklib is a module, not a shared library"
+			if test -z "$old_library"; then
+			  echo
+			  echo "*** And there doesn't seem to be a static archive available"
+			  echo "*** The link will probably fail, sorry"
+			else
+			  add=$dir/$old_library
+			fi
+		      elif test -n "$old_library"; then
+			add=$dir/$old_library
+		      fi
+		    fi
+		esac
+	      elif test no = "$hardcode_minus_L"; then
+		case $host in
+		*-*-sunos*) add_shlibpath=$dir ;;
+		esac
+		add_dir=-L$dir
+		add=-l$name
+	      elif test no = "$hardcode_shlibpath_var"; then
+		add_shlibpath=$dir
+		add=-l$name
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    relink)
+	      if test yes = "$hardcode_direct" &&
+	         test no = "$hardcode_direct_absolute"; then
+		add=$dir/$linklib
+	      elif test yes = "$hardcode_minus_L"; then
+		add_dir=-L$absdir
+		# Try looking first in the location we're being installed to.
+		if test -n "$inst_prefix_dir"; then
+		  case $libdir in
+		    [\\/]*)
+		      func_append add_dir " -L$inst_prefix_dir$libdir"
+		      ;;
+		  esac
+		fi
+		add=-l$name
+	      elif test yes = "$hardcode_shlibpath_var"; then
+		add_shlibpath=$dir
+		add=-l$name
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    *) lib_linked=no ;;
+	    esac
+
+	    if test yes != "$lib_linked"; then
+	      func_fatal_configuration "unsupported hardcode properties"
+	    fi
+
+	    if test -n "$add_shlibpath"; then
+	      case :$compile_shlibpath: in
+	      *":$add_shlibpath:"*) ;;
+	      *) func_append compile_shlibpath "$add_shlibpath:" ;;
+	      esac
+	    fi
+	    if test prog = "$linkmode"; then
+	      test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
+	      test -n "$add" && compile_deplibs="$add $compile_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	      if test yes != "$hardcode_direct" &&
+		 test yes != "$hardcode_minus_L" &&
+		 test yes = "$hardcode_shlibpath_var"; then
+		case :$finalize_shlibpath: in
+		*":$libdir:"*) ;;
+		*) func_append finalize_shlibpath "$libdir:" ;;
+		esac
+	      fi
+	    fi
+	  fi
+
+	  if test prog = "$linkmode" || test relink = "$opt_mode"; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    # Finalize command for both is simple: just hardcode it.
+	    if test yes = "$hardcode_direct" &&
+	       test no = "$hardcode_direct_absolute"; then
+	      add=$libdir/$linklib
+	    elif test yes = "$hardcode_minus_L"; then
+	      add_dir=-L$libdir
+	      add=-l$name
+	    elif test yes = "$hardcode_shlibpath_var"; then
+	      case :$finalize_shlibpath: in
+	      *":$libdir:"*) ;;
+	      *) func_append finalize_shlibpath "$libdir:" ;;
+	      esac
+	      add=-l$name
+	    elif test yes = "$hardcode_automatic"; then
+	      if test -n "$inst_prefix_dir" &&
+		 test -f "$inst_prefix_dir$libdir/$linklib"; then
+		add=$inst_prefix_dir$libdir/$linklib
+	      else
+		add=$libdir/$linklib
+	      fi
+	    else
+	      # We cannot seem to hardcode it, guess we'll fake it.
+	      add_dir=-L$libdir
+	      # Try looking first in the location we're being installed to.
+	      if test -n "$inst_prefix_dir"; then
+		case $libdir in
+		  [\\/]*)
+		    func_append add_dir " -L$inst_prefix_dir$libdir"
+		    ;;
+		esac
+	      fi
+	      add=-l$name
+	    fi
+
+	    if test prog = "$linkmode"; then
+	      test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
+	      test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	    fi
+	  fi
+	elif test prog = "$linkmode"; then
+	  # Here we assume that one of hardcode_direct or hardcode_minus_L
+	  # is not unsupported.  This is valid on all known static and
+	  # shared platforms.
+	  if test unsupported != "$hardcode_direct"; then
+	    test -n "$old_library" && linklib=$old_library
+	    compile_deplibs="$dir/$linklib $compile_deplibs"
+	    finalize_deplibs="$dir/$linklib $finalize_deplibs"
+	  else
+	    compile_deplibs="-l$name -L$dir $compile_deplibs"
+	    finalize_deplibs="-l$name -L$dir $finalize_deplibs"
+	  fi
+	elif test yes = "$build_libtool_libs"; then
+	  # Not a shared library
+	  if test pass_all != "$deplibs_check_method"; then
+	    # We're trying link a shared library against a static one
+	    # but the system doesn't support it.
+
+	    # Just print a warning and add the library to dependency_libs so
+	    # that the program can be linked against the static library.
+	    echo
+	    $ECHO "*** Warning: This system cannot link to static lib archive $lib."
+	    echo "*** I have the capability to make that library automatically link in when"
+	    echo "*** you link to this library.  But I can only do this if you have a"
+	    echo "*** shared version of the library, which you do not appear to have."
+	    if test yes = "$module"; then
+	      echo "*** But as you try to build a module library, libtool will still create "
+	      echo "*** a static module, that should work as long as the dlopening application"
+	      echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
+	      if test -z "$global_symbol_pipe"; then
+		echo
+		echo "*** However, this would only work if libtool was able to extract symbol"
+		echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
+		echo "*** not find such a program.  So, this module is probably useless."
+		echo "*** 'nm' from GNU binutils and a full rebuild may help."
+	      fi
+	      if test no = "$build_old_libs"; then
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  else
+	    deplibs="$dir/$old_library $deplibs"
+	    link_static=yes
+	  fi
+	fi # link shared/static library?
+
+	if test lib = "$linkmode"; then
+	  if test -n "$dependency_libs" &&
+	     { test yes != "$hardcode_into_libs" ||
+	       test yes = "$build_old_libs" ||
+	       test yes = "$link_static"; }; then
+	    # Extract -R from dependency_libs
+	    temp_deplibs=
+	    for libdir in $dependency_libs; do
+	      case $libdir in
+	      -R*) func_stripname '-R' '' "$libdir"
+	           temp_xrpath=$func_stripname_result
+		   case " $xrpath " in
+		   *" $temp_xrpath "*) ;;
+		   *) func_append xrpath " $temp_xrpath";;
+		   esac;;
+	      *) func_append temp_deplibs " $libdir";;
+	      esac
+	    done
+	    dependency_libs=$temp_deplibs
+	  fi
+
+	  func_append newlib_search_path " $absdir"
+	  # Link against this library
+	  test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
+	  # ... and its dependency_libs
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    newdependency_libs="$deplib $newdependency_libs"
+	    case $deplib in
+              -L*) func_stripname '-L' '' "$deplib"
+                   func_resolve_sysroot "$func_stripname_result";;
+              *) func_resolve_sysroot "$deplib" ;;
+            esac
+	    if $opt_preserve_dup_deps; then
+	      case "$tmp_libs " in
+	      *" $func_resolve_sysroot_result "*)
+                func_append specialdeplibs " $func_resolve_sysroot_result" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $func_resolve_sysroot_result"
+	  done
+
+	  if test no != "$link_all_deplibs"; then
+	    # Add the search paths of all dependency libraries
+	    for deplib in $dependency_libs; do
+	      path=
+	      case $deplib in
+	      -L*) path=$deplib ;;
+	      *.la)
+	        func_resolve_sysroot "$deplib"
+	        deplib=$func_resolve_sysroot_result
+	        func_dirname "$deplib" "" "."
+		dir=$func_dirname_result
+		# We need an absolute path.
+		case $dir in
+		[\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;;
+		*)
+		  absdir=`cd "$dir" && pwd`
+		  if test -z "$absdir"; then
+		    func_warning "cannot determine absolute directory name of '$dir'"
+		    absdir=$dir
+		  fi
+		  ;;
+		esac
+		if $GREP "^installed=no" $deplib > /dev/null; then
+		case $host in
+		*-*-darwin*)
+		  depdepl=
+		  eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
+		  if test -n "$deplibrary_names"; then
+		    for tmp in $deplibrary_names; do
+		      depdepl=$tmp
+		    done
+		    if test -f "$absdir/$objdir/$depdepl"; then
+		      depdepl=$absdir/$objdir/$depdepl
+		      darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+                      if test -z "$darwin_install_name"; then
+                          darwin_install_name=`$OTOOL64 -L $depdepl  | awk '{if (NR == 2) {print $1;exit}}'`
+                      fi
+		      func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl"
+		      func_append linker_flags " -dylib_file $darwin_install_name:$depdepl"
+		      path=
+		    fi
+		  fi
+		  ;;
+		*)
+		  path=-L$absdir/$objdir
+		  ;;
+		esac
+		else
+		  eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+		  test -z "$libdir" && \
+		    func_fatal_error "'$deplib' is not a valid libtool archive"
+		  test "$absdir" != "$libdir" && \
+		    func_warning "'$deplib' seems to be moved"
+
+		  path=-L$absdir
+		fi
+		;;
+	      esac
+	      case " $deplibs " in
+	      *" $path "*) ;;
+	      *) deplibs="$path $deplibs" ;;
+	      esac
+	    done
+	  fi # link_all_deplibs != no
+	fi # linkmode = lib
+      done # for deplib in $libs
+      if test link = "$pass"; then
+	if test prog = "$linkmode"; then
+	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
+	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
+	else
+	  compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	fi
+      fi
+      dependency_libs=$newdependency_libs
+      if test dlpreopen = "$pass"; then
+	# Link the dlpreopened libraries before other libraries
+	for deplib in $save_deplibs; do
+	  deplibs="$deplib $deplibs"
+	done
+      fi
+      if test dlopen != "$pass"; then
+	test conv = "$pass" || {
+	  # Make sure lib_search_path contains only unique directories.
+	  lib_search_path=
+	  for dir in $newlib_search_path; do
+	    case "$lib_search_path " in
+	    *" $dir "*) ;;
+	    *) func_append lib_search_path " $dir" ;;
+	    esac
+	  done
+	  newlib_search_path=
+	}
+
+	if test prog,link = "$linkmode,$pass"; then
+	  vars="compile_deplibs finalize_deplibs"
+	else
+	  vars=deplibs
+	fi
+	for var in $vars dependency_libs; do
+	  # Add libraries to $var in reverse order
+	  eval tmp_libs=\"\$$var\"
+	  new_libs=
+	  for deplib in $tmp_libs; do
+	    # FIXME: Pedantically, this is the right thing to do, so
+	    #        that some nasty dependency loop isn't accidentally
+	    #        broken:
+	    #new_libs="$deplib $new_libs"
+	    # Pragmatically, this seems to cause very few problems in
+	    # practice:
+	    case $deplib in
+	    -L*) new_libs="$deplib $new_libs" ;;
+	    -R*) ;;
+	    *)
+	      # And here is the reason: when a library appears more
+	      # than once as an explicit dependence of a library, or
+	      # is implicitly linked in more than once by the
+	      # compiler, it is considered special, and multiple
+	      # occurrences thereof are not removed.  Compare this
+	      # with having the same library being listed as a
+	      # dependency of multiple other libraries: in this case,
+	      # we know (pedantically, we assume) the library does not
+	      # need to be listed more than once, so we keep only the
+	      # last copy.  This is not always right, but it is rare
+	      # enough that we require users that really mean to play
+	      # such unportable linking tricks to link the library
+	      # using -Wl,-lname, so that libtool does not consider it
+	      # for duplicate removal.
+	      case " $specialdeplibs " in
+	      *" $deplib "*) new_libs="$deplib $new_libs" ;;
+	      *)
+		case " $new_libs " in
+		*" $deplib "*) ;;
+		*) new_libs="$deplib $new_libs" ;;
+		esac
+		;;
+	      esac
+	      ;;
+	    esac
+	  done
+	  tmp_libs=
+	  for deplib in $new_libs; do
+	    case $deplib in
+	    -L*)
+	      case " $tmp_libs " in
+	      *" $deplib "*) ;;
+	      *) func_append tmp_libs " $deplib" ;;
+	      esac
+	      ;;
+	    *) func_append tmp_libs " $deplib" ;;
+	    esac
+	  done
+	  eval $var=\"$tmp_libs\"
+	done # for var
+      fi
+
+      # Add Sun CC postdeps if required:
+      test CXX = "$tagname" && {
+        case $host_os in
+        linux*)
+          case `$CC -V 2>&1 | sed 5q` in
+          *Sun\ C*) # Sun C++ 5.9
+            func_suncc_cstd_abi
+
+            if test no != "$suncc_use_cstd_abi"; then
+              func_append postdeps ' -library=Cstd -library=Crun'
+            fi
+            ;;
+          esac
+          ;;
+
+        solaris*)
+          func_cc_basename "$CC"
+          case $func_cc_basename_result in
+          CC* | sunCC*)
+            func_suncc_cstd_abi
+
+            if test no != "$suncc_use_cstd_abi"; then
+              func_append postdeps ' -library=Cstd -library=Crun'
+            fi
+            ;;
+          esac
+          ;;
+        esac
+      }
+
+      # Last step: remove runtime libs from dependency_libs
+      # (they stay in deplibs)
+      tmp_libs=
+      for i in $dependency_libs; do
+	case " $predeps $postdeps $compiler_lib_search_path " in
+	*" $i "*)
+	  i=
+	  ;;
+	esac
+	if test -n "$i"; then
+	  func_append tmp_libs " $i"
+	fi
+      done
+      dependency_libs=$tmp_libs
+    done # for pass
+    if test prog = "$linkmode"; then
+      dlfiles=$newdlfiles
+    fi
+    if test prog = "$linkmode" || test lib = "$linkmode"; then
+      dlprefiles=$newdlprefiles
+    fi
+
+    case $linkmode in
+    oldlib)
+      if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+	func_warning "'-dlopen' is ignored for archives"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "'-l' and '-L' are ignored for archives" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "'-rpath' is ignored for archives"
+
+      test -n "$xrpath" && \
+	func_warning "'-R' is ignored for archives"
+
+      test -n "$vinfo" && \
+	func_warning "'-version-info/-version-number' is ignored for archives"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for archives"
+
+      test -n "$export_symbols$export_symbols_regex" && \
+	func_warning "'-export-symbols' is ignored for archives"
+
+      # Now set the variables for building old libraries.
+      build_libtool_libs=no
+      oldlibs=$output
+      func_append objs "$old_deplibs"
+      ;;
+
+    lib)
+      # Make sure we only generate libraries of the form 'libNAME.la'.
+      case $outputname in
+      lib*)
+	func_stripname 'lib' '.la' "$outputname"
+	name=$func_stripname_result
+	eval shared_ext=\"$shrext_cmds\"
+	eval libname=\"$libname_spec\"
+	;;
+      *)
+	test no = "$module" \
+	  && func_fatal_help "libtool library '$output' must begin with 'lib'"
+
+	if test no != "$need_lib_prefix"; then
+	  # Add the "lib" prefix for modules if required
+	  func_stripname '' '.la' "$outputname"
+	  name=$func_stripname_result
+	  eval shared_ext=\"$shrext_cmds\"
+	  eval libname=\"$libname_spec\"
+	else
+	  func_stripname '' '.la' "$outputname"
+	  libname=$func_stripname_result
+	fi
+	;;
+      esac
+
+      if test -n "$objs"; then
+	if test pass_all != "$deplibs_check_method"; then
+	  func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs"
+	else
+	  echo
+	  $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
+	  $ECHO "*** objects $objs is not portable!"
+	  func_append libobjs " $objs"
+	fi
+      fi
+
+      test no = "$dlself" \
+	|| func_warning "'-dlopen self' is ignored for libtool libraries"
+
+      set dummy $rpath
+      shift
+      test 1 -lt "$#" \
+	&& func_warning "ignoring multiple '-rpath's for a libtool library"
+
+      install_libdir=$1
+
+      oldlibs=
+      if test -z "$rpath"; then
+	if test yes = "$build_libtool_libs"; then
+	  # Building a libtool convenience library.
+	  # Some compilers have problems with a '.al' extension so
+	  # convenience libraries should have the same extension an
+	  # archive normally would.
+	  oldlibs="$output_objdir/$libname.$libext $oldlibs"
+	  build_libtool_libs=convenience
+	  build_old_libs=yes
+	fi
+
+	test -n "$vinfo" && \
+	  func_warning "'-version-info/-version-number' is ignored for convenience libraries"
+
+	test -n "$release" && \
+	  func_warning "'-release' is ignored for convenience libraries"
+      else
+
+	# Parse the version information argument.
+	save_ifs=$IFS; IFS=:
+	set dummy $vinfo 0 0 0
+	shift
+	IFS=$save_ifs
+
+	test -n "$7" && \
+	  func_fatal_help "too many parameters to '-version-info'"
+
+	# convert absolute version numbers to libtool ages
+	# this retains compatibility with .la files and attempts
+	# to make the code below a bit more comprehensible
+
+	case $vinfo_number in
+	yes)
+	  number_major=$1
+	  number_minor=$2
+	  number_revision=$3
+	  #
+	  # There are really only two kinds -- those that
+	  # use the current revision as the major version
+	  # and those that subtract age and use age as
+	  # a minor version.  But, then there is irix
+	  # that has an extra 1 added just for fun
+	  #
+	  case $version_type in
+	  # correct linux to gnu/linux during the next big refactor
+	  darwin|freebsd-elf|linux|osf|windows|none)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age=$number_minor
+	    revision=$number_revision
+	    ;;
+	  freebsd-aout|qnx|sunos)
+	    current=$number_major
+	    revision=$number_minor
+	    age=0
+	    ;;
+	  irix|nonstopux)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age=$number_minor
+	    revision=$number_minor
+	    lt_irix_increment=no
+	    ;;
+	  *)
+	    func_fatal_configuration "$modename: unknown library version type '$version_type'"
+	    ;;
+	  esac
+	  ;;
+	no)
+	  current=$1
+	  revision=$2
+	  age=$3
+	  ;;
+	esac
+
+	# Check that each of the things are valid numbers.
+	case $current in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "CURRENT '$current' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $revision in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "REVISION '$revision' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $age in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "AGE '$age' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	if test "$age" -gt "$current"; then
+	  func_error "AGE '$age' is greater than the current interface number '$current'"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	fi
+
+	# Calculate the version variables.
+	major=
+	versuffix=
+	verstring=
+	case $version_type in
+	none) ;;
+
+	darwin)
+	  # Like Linux, but with the current version available in
+	  # verstring for coding it into the library header
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  # Darwin ld doesn't like 0 for these options...
+	  func_arith $current + 1
+	  minor_current=$func_arith_result
+	  xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+	  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+          # On Darwin other compilers
+          case $CC in
+              nagfor*)
+                  verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+                  ;;
+              *)
+                  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+                  ;;
+          esac
+	  ;;
+
+	freebsd-aout)
+	  major=.$current
+	  versuffix=.$current.$revision
+	  ;;
+
+	freebsd-elf)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  ;;
+
+	irix | nonstopux)
+	  if test no = "$lt_irix_increment"; then
+	    func_arith $current - $age
+	  else
+	    func_arith $current - $age + 1
+	  fi
+	  major=$func_arith_result
+
+	  case $version_type in
+	    nonstopux) verstring_prefix=nonstopux ;;
+	    *)         verstring_prefix=sgi ;;
+	  esac
+	  verstring=$verstring_prefix$major.$revision
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$revision
+	  while test 0 -ne "$loop"; do
+	    func_arith $revision - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring=$verstring_prefix$major.$iface:$verstring
+	  done
+
+	  # Before this point, $major must not contain '.'.
+	  major=.$major
+	  versuffix=$major.$revision
+	  ;;
+
+	linux) # correct to gnu/linux during the next big refactor
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  ;;
+
+	osf)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=.$current.$age.$revision
+	  verstring=$current.$age.$revision
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$age
+	  while test 0 -ne "$loop"; do
+	    func_arith $current - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring=$verstring:$iface.0
+	  done
+
+	  # Make executables depend on our current version.
+	  func_append verstring ":$current.0"
+	  ;;
+
+	qnx)
+	  major=.$current
+	  versuffix=.$current
+	  ;;
+
+	sco)
+	  major=.$current
+	  versuffix=.$current
+	  ;;
+
+	sunos)
+	  major=.$current
+	  versuffix=.$current.$revision
+	  ;;
+
+	windows)
+	  # Use '-' rather than '.', since we only want one
+	  # extension on DOS 8.3 file systems.
+	  func_arith $current - $age
+	  major=$func_arith_result
+	  versuffix=-$major
+	  ;;
+
+	*)
+	  func_fatal_configuration "unknown library version type '$version_type'"
+	  ;;
+	esac
+
+	# Clear the version info if we defaulted, and they specified a release.
+	if test -z "$vinfo" && test -n "$release"; then
+	  major=
+	  case $version_type in
+	  darwin)
+	    # we can't check for "0.0" in archive_cmds due to quoting
+	    # problems, so we reset it completely
+	    verstring=
+	    ;;
+	  *)
+	    verstring=0.0
+	    ;;
+	  esac
+	  if test no = "$need_version"; then
+	    versuffix=
+	  else
+	    versuffix=.0.0
+	  fi
+	fi
+
+	# Remove version info from name if versioning should be avoided
+	if test yes,no = "$avoid_version,$need_version"; then
+	  major=
+	  versuffix=
+	  verstring=
+	fi
+
+	# Check to see if the archive will have undefined symbols.
+	if test yes = "$allow_undefined"; then
+	  if test unsupported = "$allow_undefined_flag"; then
+	    if test yes = "$build_old_libs"; then
+	      func_warning "undefined symbols not allowed in $host shared libraries; building static only"
+	      build_libtool_libs=no
+	    else
+	      func_fatal_error "can't build $host shared library unless -no-undefined is specified"
+	    fi
+	  fi
+	else
+	  # Don't allow undefined symbols.
+	  allow_undefined_flag=$no_undefined_flag
+	fi
+
+      fi
+
+      func_generate_dlsyms "$libname" "$libname" :
+      func_append libobjs " $symfileobj"
+      test " " = "$libobjs" && libobjs=
+
+      if test relink != "$opt_mode"; then
+	# Remove our outputs, but don't remove object files since they
+	# may have been created when compiling PIC objects.
+	removelist=
+	tempremovelist=`$ECHO "$output_objdir/*"`
+	for p in $tempremovelist; do
+	  case $p in
+	    *.$objext | *.gcno)
+	       ;;
+	    $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*)
+	       if test -n "$precious_files_regex"; then
+		 if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
+		 then
+		   continue
+		 fi
+	       fi
+	       func_append removelist " $p"
+	       ;;
+	    *) ;;
+	  esac
+	done
+	test -n "$removelist" && \
+	  func_show_eval "${RM}r \$removelist"
+      fi
+
+      # Now set the variables for building old libraries.
+      if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then
+	func_append oldlibs " $output_objdir/$libname.$libext"
+
+	# Transform .lo files to .o files.
+	oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP`
+      fi
+
+      # Eliminate all temporary directories.
+      #for path in $notinst_path; do
+      #	lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
+      #	deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
+      #	dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
+      #done
+
+      if test -n "$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	temp_xrpath=
+	for libdir in $xrpath; do
+	  func_replace_sysroot "$libdir"
+	  func_append temp_xrpath " -R$func_replace_sysroot_result"
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+	if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then
+	  dependency_libs="$temp_xrpath $dependency_libs"
+	fi
+      fi
+
+      # Make sure dlfiles contains only unique files that won't be dlpreopened
+      old_dlfiles=$dlfiles
+      dlfiles=
+      for lib in $old_dlfiles; do
+	case " $dlprefiles $dlfiles " in
+	*" $lib "*) ;;
+	*) func_append dlfiles " $lib" ;;
+	esac
+      done
+
+      # Make sure dlprefiles contains only unique files
+      old_dlprefiles=$dlprefiles
+      dlprefiles=
+      for lib in $old_dlprefiles; do
+	case "$dlprefiles " in
+	*" $lib "*) ;;
+	*) func_append dlprefiles " $lib" ;;
+	esac
+      done
+
+      if test yes = "$build_libtool_libs"; then
+	if test -n "$rpath"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # these systems don't actually have a c library (as such)!
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C library is in the System framework
+	    func_append deplibs " System.ltframework"
+	    ;;
+	  *-*-netbsd*)
+	    # Don't link with libc until the a.out ld.so is fixed.
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	    # Do not include libc due to us having libc/libc_r.
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    ;;
+	  *)
+	    # Add libc to deplibs on all other systems if necessary.
+	    if test yes = "$build_libtool_need_lc"; then
+	      func_append deplibs " -lc"
+	    fi
+	    ;;
+	  esac
+	fi
+
+	# Transform deplibs into only deplibs that can be linked in shared.
+	name_save=$name
+	libname_save=$libname
+	release_save=$release
+	versuffix_save=$versuffix
+	major_save=$major
+	# I'm not sure if I'm treating the release correctly.  I think
+	# release should show up in the -l (ie -lgmp5) so we don't want to
+	# add it in twice.  Is that correct?
+	release=
+	versuffix=
+	major=
+	newdeplibs=
+	droppeddeps=no
+	case $deplibs_check_method in
+	pass_all)
+	  # Don't check for shared/static.  Everything works.
+	  # This might be a little naive.  We might want to check
+	  # whether the library exists or not.  But this is on
+	  # osf3 & osf4 and I'm not really sure... Just
+	  # implementing what was already the behavior.
+	  newdeplibs=$deplibs
+	  ;;
+	test_compile)
+	  # This code stresses the "libraries are programs" paradigm to its
+	  # limits. Maybe even breaks it.  We compile a program, linking it
+	  # against the deplibs as a proxy for the library.  Then we can check
+	  # whether they linked in statically or dynamically with ldd.
+	  $opt_dry_run || $RM conftest.c
+	  cat > conftest.c </dev/null`
+		    $nocaseglob
+		  else
+		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+		  fi
+		  for potent_lib in $potential_libs; do
+		      # Follow soft links.
+		      if ls -lLd "$potent_lib" 2>/dev/null |
+			 $GREP " -> " >/dev/null; then
+			continue
+		      fi
+		      # The statement above tries to avoid entering an
+		      # endless loop below, in case of cyclic links.
+		      # We might still enter an endless loop, since a link
+		      # loop can be closed while we follow links,
+		      # but so what?
+		      potlib=$potent_lib
+		      while test -h "$potlib" 2>/dev/null; do
+			potliblink=`ls -ld $potlib | $SED 's/.* -> //'`
+			case $potliblink in
+			[\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;;
+			*) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";;
+			esac
+		      done
+		      if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
+			 $SED -e 10q |
+			 $EGREP "$file_magic_regex" > /dev/null; then
+			func_append newdeplibs " $a_deplib"
+			a_deplib=
+			break 2
+		      fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib"; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib"; then
+		  $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a file magic. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	match_pattern*)
+	  set dummy $deplibs_check_method; shift
+	  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+	  for a_deplib in $deplibs; do
+	    case $a_deplib in
+	    -l*)
+	      func_stripname -l '' "$a_deplib"
+	      name=$func_stripname_result
+	      if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+		case " $predeps $postdeps " in
+		*" $a_deplib "*)
+		  func_append newdeplibs " $a_deplib"
+		  a_deplib=
+		  ;;
+		esac
+	      fi
+	      if test -n "$a_deplib"; then
+		libname=`eval "\\$ECHO \"$libname_spec\""`
+		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+		  for potent_lib in $potential_libs; do
+		    potlib=$potent_lib # see symlink-check above in file_magic test
+		    if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
+		       $EGREP "$match_pattern_regex" > /dev/null; then
+		      func_append newdeplibs " $a_deplib"
+		      a_deplib=
+		      break 2
+		    fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib"; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib"; then
+		  $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a regex pattern. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	none | unknown | *)
+	  newdeplibs=
+	  tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
+	  if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+	    for i in $predeps $postdeps; do
+	      # can't use Xsed below, because $i might contain '/'
+	      tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"`
+	    done
+	  fi
+	  case $tmp_deplibs in
+	  *[!\	\ ]*)
+	    echo
+	    if test none = "$deplibs_check_method"; then
+	      echo "*** Warning: inter-library dependencies are not supported in this platform."
+	    else
+	      echo "*** Warning: inter-library dependencies are not known to be supported."
+	    fi
+	    echo "*** All declared inter-library dependencies are being dropped."
+	    droppeddeps=yes
+	    ;;
+	  esac
+	  ;;
+	esac
+	versuffix=$versuffix_save
+	major=$major_save
+	release=$release_save
+	libname=$libname_save
+	name=$name_save
+
+	case $host in
+	*-*-rhapsody* | *-*-darwin1.[012])
+	  # On Rhapsody replace the C library with the System framework
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
+	  ;;
+	esac
+
+	if test yes = "$droppeddeps"; then
+	  if test yes = "$module"; then
+	    echo
+	    echo "*** Warning: libtool could not satisfy all declared inter-library"
+	    $ECHO "*** dependencies of module $libname.  Therefore, libtool will create"
+	    echo "*** a static module, that should work as long as the dlopening"
+	    echo "*** application is linked with the -dlopen flag."
+	    if test -z "$global_symbol_pipe"; then
+	      echo
+	      echo "*** However, this would only work if libtool was able to extract symbol"
+	      echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
+	      echo "*** not find such a program.  So, this module is probably useless."
+	      echo "*** 'nm' from GNU binutils and a full rebuild may help."
+	    fi
+	    if test no = "$build_old_libs"; then
+	      oldlibs=$output_objdir/$libname.$libext
+	      build_libtool_libs=module
+	      build_old_libs=yes
+	    else
+	      build_libtool_libs=no
+	    fi
+	  else
+	    echo "*** The inter-library dependencies that have been dropped here will be"
+	    echo "*** automatically added whenever a program is linked with this library"
+	    echo "*** or is declared to -dlopen it."
+
+	    if test no = "$allow_undefined"; then
+	      echo
+	      echo "*** Since this library must not contain undefined symbols,"
+	      echo "*** because either the platform does not support them or"
+	      echo "*** it was explicitly requested with -no-undefined,"
+	      echo "*** libtool will only create a static version of it."
+	      if test no = "$build_old_libs"; then
+		oldlibs=$output_objdir/$libname.$libext
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  fi
+	fi
+	# Done checking deplibs!
+	deplibs=$newdeplibs
+      fi
+      # Time to change all our "foo.ltframework" stuff back to "-framework foo"
+      case $host in
+	*-*-darwin*)
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  ;;
+      esac
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      deplibs=$new_libs
+
+      # All the library-specific variables (install_libdir is set above).
+      library_names=
+      old_library=
+      dlname=
+
+      # Test again, we may have decided not to build it any more
+      if test yes = "$build_libtool_libs"; then
+	# Remove $wl instances when linking with ld.
+	# FIXME: should test the right _cmds variable.
+	case $archive_cmds in
+	  *\$LD\ *) wl= ;;
+        esac
+	if test yes = "$hardcode_into_libs"; then
+	  # Hardcode the library paths
+	  hardcode_libdirs=
+	  dep_rpath=
+	  rpath=$finalize_rpath
+	  test relink = "$opt_mode" || rpath=$compile_rpath$rpath
+	  for libdir in $rpath; do
+	    if test -n "$hardcode_libdir_flag_spec"; then
+	      if test -n "$hardcode_libdir_separator"; then
+		func_replace_sysroot "$libdir"
+		libdir=$func_replace_sysroot_result
+		if test -z "$hardcode_libdirs"; then
+		  hardcode_libdirs=$libdir
+		else
+		  # Just accumulate the unique libdirs.
+		  case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+		  *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		    ;;
+		  *)
+		    func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		    ;;
+		  esac
+		fi
+	      else
+		eval flag=\"$hardcode_libdir_flag_spec\"
+		func_append dep_rpath " $flag"
+	      fi
+	    elif test -n "$runpath_var"; then
+	      case "$perm_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append perm_rpath " $libdir" ;;
+	      esac
+	    fi
+	  done
+	  # Substitute the hardcoded libdirs into the rpath.
+	  if test -n "$hardcode_libdir_separator" &&
+	     test -n "$hardcode_libdirs"; then
+	    libdir=$hardcode_libdirs
+	    eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
+	  fi
+	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
+	    # We should set the runpath_var.
+	    rpath=
+	    for dir in $perm_rpath; do
+	      func_append rpath "$dir:"
+	    done
+	    eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
+	  fi
+	  test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
+	fi
+
+	shlibpath=$finalize_shlibpath
+	test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath
+	if test -n "$shlibpath"; then
+	  eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
+	fi
+
+	# Get the real and link names of the library.
+	eval shared_ext=\"$shrext_cmds\"
+	eval library_names=\"$library_names_spec\"
+	set dummy $library_names
+	shift
+	realname=$1
+	shift
+
+	if test -n "$soname_spec"; then
+	  eval soname=\"$soname_spec\"
+	else
+	  soname=$realname
+	fi
+	if test -z "$dlname"; then
+	  dlname=$soname
+	fi
+
+	lib=$output_objdir/$realname
+	linknames=
+	for link
+	do
+	  func_append linknames " $link"
+	done
+
+	# Use standard objects if they are pic
+	test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	test "X$libobjs" = "X " && libobjs=
+
+	delfiles=
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
+	  export_symbols=$output_objdir/$libname.uexp
+	  func_append delfiles " $export_symbols"
+	fi
+
+	orig_export_symbols=
+	case $host_os in
+	cygwin* | mingw* | cegcc*)
+	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
+	    # exporting using user supplied symfile
+	    func_dll_def_p "$export_symbols" || {
+	      # and it's NOT already a .def file. Must figure out
+	      # which of the given symbols are data symbols and tag
+	      # them as such. So, trigger use of export_symbols_cmds.
+	      # export_symbols gets reassigned inside the "prepare
+	      # the list of exported symbols" if statement, so the
+	      # include_expsyms logic still works.
+	      orig_export_symbols=$export_symbols
+	      export_symbols=
+	      always_export_symbols=yes
+	    }
+	  fi
+	  ;;
+	esac
+
+	# Prepare the list of exported symbols
+	if test -z "$export_symbols"; then
+	  if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then
+	    func_verbose "generating symbol list for '$libname.la'"
+	    export_symbols=$output_objdir/$libname.exp
+	    $opt_dry_run || $RM $export_symbols
+	    cmds=$export_symbols_cmds
+	    save_ifs=$IFS; IFS='~'
+	    for cmd1 in $cmds; do
+	      IFS=$save_ifs
+	      # Take the normal branch if the nm_file_list_spec branch
+	      # doesn't work or if tool conversion is not needed.
+	      case $nm_file_list_spec~$to_tool_file_cmd in
+		*~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
+		  try_normal_branch=yes
+		  eval cmd=\"$cmd1\"
+		  func_len " $cmd"
+		  len=$func_len_result
+		  ;;
+		*)
+		  try_normal_branch=no
+		  ;;
+	      esac
+	      if test yes = "$try_normal_branch" \
+		 && { test "$len" -lt "$max_cmd_len" \
+		      || test "$max_cmd_len" -le -1; }
+	      then
+		func_show_eval "$cmd" 'exit $?'
+		skipped_export=false
+	      elif test -n "$nm_file_list_spec"; then
+		func_basename "$output"
+		output_la=$func_basename_result
+		save_libobjs=$libobjs
+		save_output=$output
+		output=$output_objdir/$output_la.nm
+		func_to_tool_file "$output"
+		libobjs=$nm_file_list_spec$func_to_tool_file_result
+		func_append delfiles " $output"
+		func_verbose "creating $NM input file list: $output"
+		for obj in $save_libobjs; do
+		  func_to_tool_file "$obj"
+		  $ECHO "$func_to_tool_file_result"
+		done > "$output"
+		eval cmd=\"$cmd1\"
+		func_show_eval "$cmd" 'exit $?'
+		output=$save_output
+		libobjs=$save_libobjs
+		skipped_export=false
+	      else
+		# The command line is too long to execute in one step.
+		func_verbose "using reloadable object file for export list..."
+		skipped_export=:
+		# Break out early, otherwise skipped_export may be
+		# set to false by a later but shorter cmd.
+		break
+	      fi
+	    done
+	    IFS=$save_ifs
+	    if test -n "$export_symbols_regex" && test : != "$skipped_export"; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+	fi
+
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  tmp_export_symbols=$export_symbols
+	  test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
+	  $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	fi
+
+	if test : != "$skipped_export" && test -n "$orig_export_symbols"; then
+	  # The given exports_symbols file has to be filtered, so filter it.
+	  func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
+	  # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	  # 's' commands, which not all seds can handle. GNU sed should be fine
+	  # though. Also, the filter scales superlinearly with the number of
+	  # global variables. join(1) would be nice here, but unfortunately
+	  # isn't a blessed tool.
+	  $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	  func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	  export_symbols=$output_objdir/$libname.def
+	  $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	fi
+
+	tmp_deplibs=
+	for test_deplib in $deplibs; do
+	  case " $convenience " in
+	  *" $test_deplib "*) ;;
+	  *)
+	    func_append tmp_deplibs " $test_deplib"
+	    ;;
+	  esac
+	done
+	deplibs=$tmp_deplibs
+
+	if test -n "$convenience"; then
+	  if test -n "$whole_archive_flag_spec" &&
+	    test yes = "$compiler_needs_object" &&
+	    test -z "$libobjs"; then
+	    # extract the archives, so we have objects to list.
+	    # TODO: could optimize this to just extract one archive.
+	    whole_archive_flag_spec=
+	  fi
+	  if test -n "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  else
+	    gentop=$output_objdir/${outputname}x
+	    func_append generated " $gentop"
+
+	    func_extract_archives $gentop $convenience
+	    func_append libobjs " $func_extract_archives_result"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	fi
+
+	if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then
+	  eval flag=\"$thread_safe_flag_spec\"
+	  func_append linker_flags " $flag"
+	fi
+
+	# Make a backup of the uninstalled library when relinking
+	if test relink = "$opt_mode"; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
+	fi
+
+	# Do each of the archive commands.
+	if test yes = "$module" && test -n "$module_cmds"; then
+	  if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	    eval test_cmds=\"$module_expsym_cmds\"
+	    cmds=$module_expsym_cmds
+	  else
+	    eval test_cmds=\"$module_cmds\"
+	    cmds=$module_cmds
+	  fi
+	else
+	  if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	    eval test_cmds=\"$archive_expsym_cmds\"
+	    cmds=$archive_expsym_cmds
+	  else
+	    eval test_cmds=\"$archive_cmds\"
+	    cmds=$archive_cmds
+	  fi
+	fi
+
+	if test : != "$skipped_export" &&
+	   func_len " $test_cmds" &&
+	   len=$func_len_result &&
+	   test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  :
+	else
+	  # The command line is too long to link in one step, link piecewise
+	  # or, if using GNU ld and skipped_export is not :, use a linker
+	  # script.
+
+	  # Save the value of $output and $libobjs because we want to
+	  # use them later.  If we have whole_archive_flag_spec, we
+	  # want to use save_libobjs as it was before
+	  # whole_archive_flag_spec was expanded, because we can't
+	  # assume the linker understands whole_archive_flag_spec.
+	  # This may have to be revisited, in case too many
+	  # convenience libraries get linked in and end up exceeding
+	  # the spec.
+	  if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	  fi
+	  save_output=$output
+	  func_basename "$output"
+	  output_la=$func_basename_result
+
+	  # Clear the reloadable object creation command queue and
+	  # initialize k to one.
+	  test_cmds=
+	  concat_cmds=
+	  objlist=
+	  last_robj=
+	  k=1
+
+	  if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then
+	    output=$output_objdir/$output_la.lnkscript
+	    func_verbose "creating GNU ld script: $output"
+	    echo 'INPUT (' > $output
+	    for obj in $save_libobjs
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    echo ')' >> $output
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$func_to_tool_file_result
+	  elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then
+	    output=$output_objdir/$output_la.lnk
+	    func_verbose "creating linker input file list: $output"
+	    : > $output
+	    set x $save_libobjs
+	    shift
+	    firstobj=
+	    if test yes = "$compiler_needs_object"; then
+	      firstobj="$1 "
+	      shift
+	    fi
+	    for obj
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
+	  else
+	    if test -n "$save_libobjs"; then
+	      func_verbose "creating reloadable object files..."
+	      output=$output_objdir/$output_la-$k.$objext
+	      eval test_cmds=\"$reload_cmds\"
+	      func_len " $test_cmds"
+	      len0=$func_len_result
+	      len=$len0
+
+	      # Loop over the list of objects to be linked.
+	      for obj in $save_libobjs
+	      do
+		func_len " $obj"
+		func_arith $len + $func_len_result
+		len=$func_arith_result
+		if test -z "$objlist" ||
+		   test "$len" -lt "$max_cmd_len"; then
+		  func_append objlist " $obj"
+		else
+		  # The command $test_cmds is almost too long, add a
+		  # command to the queue.
+		  if test 1 -eq "$k"; then
+		    # The first file doesn't have a previous command to add.
+		    reload_objs=$objlist
+		    eval concat_cmds=\"$reload_cmds\"
+		  else
+		    # All subsequent reloadable object files will link in
+		    # the last one created.
+		    reload_objs="$objlist $last_robj"
+		    eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
+		  fi
+		  last_robj=$output_objdir/$output_la-$k.$objext
+		  func_arith $k + 1
+		  k=$func_arith_result
+		  output=$output_objdir/$output_la-$k.$objext
+		  objlist=" $obj"
+		  func_len " $last_robj"
+		  func_arith $len0 + $func_len_result
+		  len=$func_arith_result
+		fi
+	      done
+	      # Handle the remaining objects by creating one last
+	      # reloadable object file.  All subsequent reloadable object
+	      # files will link in the last one created.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      reload_objs="$objlist $last_robj"
+	      eval concat_cmds=\"\$concat_cmds$reload_cmds\"
+	      if test -n "$last_robj"; then
+	        eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+	      fi
+	      func_append delfiles " $output"
+
+	    else
+	      output=
+	    fi
+
+	    ${skipped_export-false} && {
+	      func_verbose "generating symbol list for '$libname.la'"
+	      export_symbols=$output_objdir/$libname.exp
+	      $opt_dry_run || $RM $export_symbols
+	      libobjs=$output
+	      # Append the command to create the export file.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
+	      if test -n "$last_robj"; then
+		eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+	      fi
+	    }
+
+	    test -n "$save_libobjs" &&
+	      func_verbose "creating a temporary reloadable object file: $output"
+
+	    # Loop through the commands generated above and execute them.
+	    save_ifs=$IFS; IFS='~'
+	    for cmd in $concat_cmds; do
+	      IFS=$save_ifs
+	      $opt_quiet || {
+		  func_quote_for_expand "$cmd"
+		  eval "func_echo $func_quote_for_expand_result"
+	      }
+	      $opt_dry_run || eval "$cmd" || {
+		lt_exit=$?
+
+		# Restore the uninstalled library and exit
+		if test relink = "$opt_mode"; then
+		  ( cd "$output_objdir" && \
+		    $RM "${realname}T" && \
+		    $MV "${realname}U" "$realname" )
+		fi
+
+		exit $lt_exit
+	      }
+	    done
+	    IFS=$save_ifs
+
+	    if test -n "$export_symbols_regex" && ${skipped_export-false}; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+
+          ${skipped_export-false} && {
+	    if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	      tmp_export_symbols=$export_symbols
+	      test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
+	      $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	    fi
+
+	    if test -n "$orig_export_symbols"; then
+	      # The given exports_symbols file has to be filtered, so filter it.
+	      func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
+	      # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	      # 's' commands, which not all seds can handle. GNU sed should be fine
+	      # though. Also, the filter scales superlinearly with the number of
+	      # global variables. join(1) would be nice here, but unfortunately
+	      # isn't a blessed tool.
+	      $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	      func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	      export_symbols=$output_objdir/$libname.def
+	      $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	    fi
+	  }
+
+	  libobjs=$output
+	  # Restore the value of output.
+	  output=$save_output
+
+	  if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	  # Expand the library linking commands again to reset the
+	  # value of $libobjs for piecewise linking.
+
+	  # Do each of the archive commands.
+	  if test yes = "$module" && test -n "$module_cmds"; then
+	    if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	      cmds=$module_expsym_cmds
+	    else
+	      cmds=$module_cmds
+	    fi
+	  else
+	    if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	      cmds=$archive_expsym_cmds
+	    else
+	      cmds=$archive_cmds
+	    fi
+	  fi
+	fi
+
+	if test -n "$delfiles"; then
+	  # Append the command to remove temporary files to $cmds.
+	  eval cmds=\"\$cmds~\$RM $delfiles\"
+	fi
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append libobjs " $func_extract_archives_result"
+	  test "X$libobjs" = "X " && libobjs=
+	fi
+
+	save_ifs=$IFS; IFS='~'
+	for cmd in $cmds; do
+	  IFS=$sp$nl
+	  eval cmd=\"$cmd\"
+	  IFS=$save_ifs
+	  $opt_quiet || {
+	    func_quote_for_expand "$cmd"
+	    eval "func_echo $func_quote_for_expand_result"
+	  }
+	  $opt_dry_run || eval "$cmd" || {
+	    lt_exit=$?
+
+	    # Restore the uninstalled library and exit
+	    if test relink = "$opt_mode"; then
+	      ( cd "$output_objdir" && \
+	        $RM "${realname}T" && \
+		$MV "${realname}U" "$realname" )
+	    fi
+
+	    exit $lt_exit
+	  }
+	done
+	IFS=$save_ifs
+
+	# Restore the uninstalled library and exit
+	if test relink = "$opt_mode"; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
+
+	  if test -n "$convenience"; then
+	    if test -z "$whole_archive_flag_spec"; then
+	      func_show_eval '${RM}r "$gentop"'
+	    fi
+	  fi
+
+	  exit $EXIT_SUCCESS
+	fi
+
+	# Create links to the real library.
+	for linkname in $linknames; do
+	  if test "$realname" != "$linkname"; then
+	    func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
+	  fi
+	done
+
+	# If -module or -export-dynamic was specified, set the dlname.
+	if test yes = "$module" || test yes = "$export_dynamic"; then
+	  # On all known operating systems, these are identical.
+	  dlname=$soname
+	fi
+      fi
+      ;;
+
+    obj)
+      if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+	func_warning "'-dlopen' is ignored for objects"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "'-l' and '-L' are ignored for objects" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "'-rpath' is ignored for objects"
+
+      test -n "$xrpath" && \
+	func_warning "'-R' is ignored for objects"
+
+      test -n "$vinfo" && \
+	func_warning "'-version-info' is ignored for objects"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for objects"
+
+      case $output in
+      *.lo)
+	test -n "$objs$old_deplibs" && \
+	  func_fatal_error "cannot build library object '$output' from non-libtool objects"
+
+	libobj=$output
+	func_lo2o "$libobj"
+	obj=$func_lo2o_result
+	;;
+      *)
+	libobj=
+	obj=$output
+	;;
+      esac
+
+      # Delete the old objects.
+      $opt_dry_run || $RM $obj $libobj
+
+      # Objects from convenience libraries.  This assumes
+      # single-version convenience libraries.  Whenever we create
+      # different ones for PIC/non-PIC, this we'll have to duplicate
+      # the extraction.
+      reload_conv_objs=
+      gentop=
+      # if reload_cmds runs $LD directly, get rid of -Wl from
+      # whole_archive_flag_spec and hope we can get by with turning comma
+      # into space.
+      case $reload_cmds in
+        *\$LD[\ \$]*) wl= ;;
+      esac
+      if test -n "$convenience"; then
+	if test -n "$whole_archive_flag_spec"; then
+	  eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
+	  test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
+	  reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags
+	else
+	  gentop=$output_objdir/${obj}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $convenience
+	  reload_conv_objs="$reload_objs $func_extract_archives_result"
+	fi
+      fi
+
+      # If we're not building shared, we need to use non_pic_objs
+      test yes = "$build_libtool_libs" || libobjs=$non_pic_objects
+
+      # Create the old-style object.
+      reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs
+
+      output=$obj
+      func_execute_cmds "$reload_cmds" 'exit $?'
+
+      # Exit if we aren't doing a library object file.
+      if test -z "$libobj"; then
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      test yes = "$build_libtool_libs" || {
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	# Create an invalid libtool object if no PIC, so that we don't
+	# accidentally link it into a program.
+	# $show "echo timestamp > $libobj"
+	# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
+	exit $EXIT_SUCCESS
+      }
+
+      if test -n "$pic_flag" || test default != "$pic_mode"; then
+	# Only do commands if we really have different PIC objects.
+	reload_objs="$libobjs $reload_conv_objs"
+	output=$libobj
+	func_execute_cmds "$reload_cmds" 'exit $?'
+      fi
+
+      if test -n "$gentop"; then
+	func_show_eval '${RM}r "$gentop"'
+      fi
+
+      exit $EXIT_SUCCESS
+      ;;
+
+    prog)
+      case $host in
+	*cygwin*) func_stripname '' '.exe' "$output"
+	          output=$func_stripname_result.exe;;
+      esac
+      test -n "$vinfo" && \
+	func_warning "'-version-info' is ignored for programs"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for programs"
+
+      $preload \
+	&& test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \
+	&& func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support."
+
+      case $host in
+      *-*-rhapsody* | *-*-darwin1.[012])
+	# On Rhapsody replace the C library is the System framework
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	;;
+      esac
+
+      case $host in
+      *-*-darwin*)
+	# Don't allow lazy linking, it breaks C++ global constructors
+	# But is supposedly fixed on 10.4 or later (yay!).
+	if test CXX = "$tagname"; then
+	  case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
+	    10.[0123])
+	      func_append compile_command " $wl-bind_at_load"
+	      func_append finalize_command " $wl-bind_at_load"
+	    ;;
+	  esac
+	fi
+	# Time to change all our "foo.ltframework" stuff back to "-framework foo"
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	;;
+      esac
+
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $compile_deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $compile_deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      compile_deplibs=$new_libs
+
+
+      func_append compile_command " $compile_deplibs"
+      func_append finalize_command " $finalize_deplibs"
+
+      if test -n "$rpath$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	for libdir in $rpath $xrpath; do
+	  # This is the magic to use -rpath.
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+      fi
+
+      # Now hardcode the library paths
+      rpath=
+      hardcode_libdirs=
+      for libdir in $compile_rpath $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs=$libdir
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append perm_rpath " $libdir" ;;
+	  esac
+	fi
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$libdir:"*) ;;
+	  ::) dllsearchpath=$libdir;;
+	  *) func_append dllsearchpath ":$libdir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir=$hardcode_libdirs
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      compile_rpath=$rpath
+
+      rpath=
+      hardcode_libdirs=
+      for libdir in $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs=$libdir
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$finalize_perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_perm_rpath " $libdir" ;;
+	  esac
+	fi
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir=$hardcode_libdirs
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      finalize_rpath=$rpath
+
+      if test -n "$libobjs" && test yes = "$build_old_libs"; then
+	# Transform all the library objects into standard objects.
+	compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+      fi
+
+      func_generate_dlsyms "$outputname" "@PROGRAM@" false
+
+      # template prelinking step
+      if test -n "$prelink_cmds"; then
+	func_execute_cmds "$prelink_cmds" 'exit $?'
+      fi
+
+      wrappers_required=:
+      case $host in
+      *cegcc* | *mingw32ce*)
+        # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
+        wrappers_required=false
+        ;;
+      *cygwin* | *mingw* )
+        test yes = "$build_libtool_libs" || wrappers_required=false
+        ;;
+      *)
+        if test no = "$need_relink" || test yes != "$build_libtool_libs"; then
+          wrappers_required=false
+        fi
+        ;;
+      esac
+      $wrappers_required || {
+	# Replace the output file specification.
+	compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	link_command=$compile_command$compile_rpath
+
+	# We have no uninstalled library dependencies, so finalize right now.
+	exit_status=0
+	func_show_eval "$link_command" 'exit_status=$?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	# Delete the generated files.
+	if test -f "$output_objdir/${outputname}S.$objext"; then
+	  func_show_eval '$RM "$output_objdir/${outputname}S.$objext"'
+	fi
+
+	exit $exit_status
+      }
+
+      if test -n "$compile_shlibpath$finalize_shlibpath"; then
+	compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
+      fi
+      if test -n "$finalize_shlibpath"; then
+	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
+      fi
+
+      compile_var=
+      finalize_var=
+      if test -n "$runpath_var"; then
+	if test -n "$perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+	if test -n "$finalize_perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $finalize_perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+      fi
+
+      if test yes = "$no_install"; then
+	# We don't need to create a wrapper script.
+	link_command=$compile_var$compile_command$compile_rpath
+	# Replace the output file specification.
+	link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	# Delete the old output file.
+	$opt_dry_run || $RM $output
+	# Link the executable and exit
+	func_show_eval "$link_command" 'exit $?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      case $hardcode_action,$fast_install in
+        relink,*)
+	  # Fast installation is not supported
+	  link_command=$compile_var$compile_command$compile_rpath
+	  relink_command=$finalize_var$finalize_command$finalize_rpath
+
+	  func_warning "this platform does not like uninstalled shared libraries"
+	  func_warning "'$output' will be relinked during installation"
+	  ;;
+        *,yes)
+	  link_command=$finalize_var$compile_command$finalize_rpath
+	  relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
+          ;;
+	*,no)
+	  link_command=$compile_var$compile_command$compile_rpath
+	  relink_command=$finalize_var$finalize_command$finalize_rpath
+          ;;
+	*,needless)
+	  link_command=$finalize_var$compile_command$finalize_rpath
+	  relink_command=
+          ;;
+      esac
+
+      # Replace the output file specification.
+      link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
+
+      # Delete the old output files.
+      $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
+
+      func_show_eval "$link_command" 'exit $?'
+
+      if test -n "$postlink_cmds"; then
+	func_to_tool_file "$output_objdir/$outputname"
+	postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	func_execute_cmds "$postlink_cmds" 'exit $?'
+      fi
+
+      # Now create the wrapper script.
+      func_verbose "creating $output"
+
+      # Quote the relink command for shipping.
+      if test -n "$relink_command"; then
+	# Preserve any variables that may affect compiler behavior
+	for var in $variables_saved_for_relink; do
+	  if eval test -z \"\${$var+set}\"; then
+	    relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	  elif eval var_value=\$$var; test -z "$var_value"; then
+	    relink_command="$var=; export $var; $relink_command"
+	  else
+	    func_quote_for_eval "$var_value"
+	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	  fi
+	done
+	relink_command="(cd `pwd`; $relink_command)"
+	relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      fi
+
+      # Only actually do things if not in dry run mode.
+      $opt_dry_run || {
+	# win32 will think the script is a binary if it has
+	# a .exe suffix, so we strip it off here.
+	case $output in
+	  *.exe) func_stripname '' '.exe' "$output"
+	         output=$func_stripname_result ;;
+	esac
+	# test for cygwin because mv fails w/o .exe extensions
+	case $host in
+	  *cygwin*)
+	    exeext=.exe
+	    func_stripname '' '.exe' "$outputname"
+	    outputname=$func_stripname_result ;;
+	  *) exeext= ;;
+	esac
+	case $host in
+	  *cygwin* | *mingw* )
+	    func_dirname_and_basename "$output" "" "."
+	    output_name=$func_basename_result
+	    output_path=$func_dirname_result
+	    cwrappersource=$output_path/$objdir/lt-$output_name.c
+	    cwrapper=$output_path/$output_name.exe
+	    $RM $cwrappersource $cwrapper
+	    trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_cwrapperexe_src > $cwrappersource
+
+	    # The wrapper executable is built using the $host compiler,
+	    # because it contains $host paths and files. If cross-
+	    # compiling, it, like the target executable, must be
+	    # executed on the $host or under an emulation environment.
+	    $opt_dry_run || {
+	      $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
+	      $STRIP $cwrapper
+	    }
+
+	    # Now, create the wrapper script for func_source use:
+	    func_ltwrapper_scriptname $cwrapper
+	    $RM $func_ltwrapper_scriptname_result
+	    trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
+	    $opt_dry_run || {
+	      # note: this script will not be executed, so do not chmod.
+	      if test "x$build" = "x$host"; then
+		$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
+	      else
+		func_emit_wrapper no > $func_ltwrapper_scriptname_result
+	      fi
+	    }
+	  ;;
+	  * )
+	    $RM $output
+	    trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_wrapper no > $output
+	    chmod +x $output
+	  ;;
+	esac
+      }
+      exit $EXIT_SUCCESS
+      ;;
+    esac
+
+    # See if we need to build an old-fashioned archive.
+    for oldlib in $oldlibs; do
+
+      case $build_libtool_libs in
+        convenience)
+	  oldobjs="$libobjs_save $symfileobj"
+	  addlibs=$convenience
+	  build_libtool_libs=no
+	  ;;
+	module)
+	  oldobjs=$libobjs_save
+	  addlibs=$old_convenience
+	  build_libtool_libs=no
+          ;;
+	*)
+	  oldobjs="$old_deplibs $non_pic_objects"
+	  $preload && test -f "$symfileobj" \
+	    && func_append oldobjs " $symfileobj"
+	  addlibs=$old_convenience
+	  ;;
+      esac
+
+      if test -n "$addlibs"; then
+	gentop=$output_objdir/${outputname}x
+	func_append generated " $gentop"
+
+	func_extract_archives $gentop $addlibs
+	func_append oldobjs " $func_extract_archives_result"
+      fi
+
+      # Do each command in the archive commands.
+      if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then
+	cmds=$old_archive_from_new_cmds
+      else
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append oldobjs " $func_extract_archives_result"
+	fi
+
+	# POSIX demands no paths to be encoded in archives.  We have
+	# to avoid creating archives with duplicate basenames if we
+	# might have to extract them afterwards, e.g., when creating a
+	# static archive out of a convenience library, or when linking
+	# the entirety of a libtool archive into another (currently
+	# not supported by libtool).
+	if (for obj in $oldobjs
+	    do
+	      func_basename "$obj"
+	      $ECHO "$func_basename_result"
+	    done | sort | sort -uc >/dev/null 2>&1); then
+	  :
+	else
+	  echo "copying selected object files to avoid basename conflicts..."
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+	  func_mkdir_p "$gentop"
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  counter=1
+	  for obj in $save_oldobjs
+	  do
+	    func_basename "$obj"
+	    objbase=$func_basename_result
+	    case " $oldobjs " in
+	    " ") oldobjs=$obj ;;
+	    *[\ /]"$objbase "*)
+	      while :; do
+		# Make sure we don't pick an alternate name that also
+		# overlaps.
+		newobj=lt$counter-$objbase
+		func_arith $counter + 1
+		counter=$func_arith_result
+		case " $oldobjs " in
+		*[\ /]"$newobj "*) ;;
+		*) if test ! -f "$gentop/$newobj"; then break; fi ;;
+		esac
+	      done
+	      func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
+	      func_append oldobjs " $gentop/$newobj"
+	      ;;
+	    *) func_append oldobjs " $obj" ;;
+	    esac
+	  done
+	fi
+	func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+	tool_oldlib=$func_to_tool_file_result
+	eval cmds=\"$old_archive_cmds\"
+
+	func_len " $cmds"
+	len=$func_len_result
+	if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  cmds=$old_archive_cmds
+	elif test -n "$archiver_list_spec"; then
+	  func_verbose "using command file archive linking..."
+	  for obj in $oldobjs
+	  do
+	    func_to_tool_file "$obj"
+	    $ECHO "$func_to_tool_file_result"
+	  done > $output_objdir/$libname.libcmd
+	  func_to_tool_file "$output_objdir/$libname.libcmd"
+	  oldobjs=" $archiver_list_spec$func_to_tool_file_result"
+	  cmds=$old_archive_cmds
+	else
+	  # the command line is too long to link in one step, link in parts
+	  func_verbose "using piecewise archive linking..."
+	  save_RANLIB=$RANLIB
+	  RANLIB=:
+	  objlist=
+	  concat_cmds=
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  # Is there a better way of finding the last object in the list?
+	  for obj in $save_oldobjs
+	  do
+	    last_oldobj=$obj
+	  done
+	  eval test_cmds=\"$old_archive_cmds\"
+	  func_len " $test_cmds"
+	  len0=$func_len_result
+	  len=$len0
+	  for obj in $save_oldobjs
+	  do
+	    func_len " $obj"
+	    func_arith $len + $func_len_result
+	    len=$func_arith_result
+	    func_append objlist " $obj"
+	    if test "$len" -lt "$max_cmd_len"; then
+	      :
+	    else
+	      # the above command should be used before it gets too long
+	      oldobjs=$objlist
+	      if test "$obj" = "$last_oldobj"; then
+		RANLIB=$save_RANLIB
+	      fi
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\$concat_cmds$old_archive_cmds\"
+	      objlist=
+	      len=$len0
+	    fi
+	  done
+	  RANLIB=$save_RANLIB
+	  oldobjs=$objlist
+	  if test -z "$oldobjs"; then
+	    eval cmds=\"\$concat_cmds\"
+	  else
+	    eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
+	  fi
+	fi
+      fi
+      func_execute_cmds "$cmds" 'exit $?'
+    done
+
+    test -n "$generated" && \
+      func_show_eval "${RM}r$generated"
+
+    # Now create the libtool archive.
+    case $output in
+    *.la)
+      old_library=
+      test yes = "$build_old_libs" && old_library=$libname.$libext
+      func_verbose "creating $output"
+
+      # Preserve any variables that may affect compiler behavior
+      for var in $variables_saved_for_relink; do
+	if eval test -z \"\${$var+set}\"; then
+	  relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	elif eval var_value=\$$var; test -z "$var_value"; then
+	  relink_command="$var=; export $var; $relink_command"
+	else
+	  func_quote_for_eval "$var_value"
+	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	fi
+      done
+      # Quote the link command for shipping.
+      relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
+      relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      if test yes = "$hardcode_automatic"; then
+	relink_command=
+      fi
+
+      # Only create the output if not a dry run.
+      $opt_dry_run || {
+	for installed in no yes; do
+	  if test yes = "$installed"; then
+	    if test -z "$install_libdir"; then
+	      break
+	    fi
+	    output=$output_objdir/${outputname}i
+	    # Replace all uninstalled libtool libraries with the installed ones
+	    newdependency_libs=
+	    for deplib in $dependency_libs; do
+	      case $deplib in
+	      *.la)
+		func_basename "$deplib"
+		name=$func_basename_result
+		func_resolve_sysroot "$deplib"
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
+		test -z "$libdir" && \
+		  func_fatal_error "'$deplib' is not a valid libtool archive"
+		func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      -L*)
+		func_stripname -L '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -L$func_replace_sysroot_result"
+		;;
+	      -R*)
+		func_stripname -R '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -R$func_replace_sysroot_result"
+		;;
+	      *) func_append newdependency_libs " $deplib" ;;
+	      esac
+	    done
+	    dependency_libs=$newdependency_libs
+	    newdlfiles=
+
+	    for lib in $dlfiles; do
+	      case $lib in
+	      *.la)
+	        func_basename "$lib"
+		name=$func_basename_result
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "'$lib' is not a valid libtool archive"
+		func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      *) func_append newdlfiles " $lib" ;;
+	      esac
+	    done
+	    dlfiles=$newdlfiles
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+	      *.la)
+		# Only pass preopened files to the pseudo-archive (for
+		# eventual linking with the app. that links it) if we
+		# didn't already link the preopened objects directly into
+		# the library:
+		func_basename "$lib"
+		name=$func_basename_result
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "'$lib' is not a valid libtool archive"
+		func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      esac
+	    done
+	    dlprefiles=$newdlprefiles
+	  else
+	    newdlfiles=
+	    for lib in $dlfiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlfiles " $abs"
+	    done
+	    dlfiles=$newdlfiles
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlprefiles " $abs"
+	    done
+	    dlprefiles=$newdlprefiles
+	  fi
+	  $RM $output
+	  # place dlname in correct position for cygwin
+	  # In fact, it would be nice if we could use this code for all target
+	  # systems that can't hard-code library paths into their executables
+	  # and that have no shared library path variable independent of PATH,
+	  # but it turns out we can't easily determine that from inspecting
+	  # libtool variables, so we have to hard-code the OSs to which it
+	  # applies here; at the moment, that means platforms that use the PE
+	  # object format with DLL files.  See the long comment at the top of
+	  # tests/bindir.at for full details.
+	  tdlname=$dlname
+	  case $host,$output,$installed,$module,$dlname in
+	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
+	      # If a -bindir argument was supplied, place the dll there.
+	      if test -n "$bindir"; then
+		func_relative_path "$install_libdir" "$bindir"
+		tdlname=$func_relative_path_result/$dlname
+	      else
+		# Otherwise fall back on heuristic.
+		tdlname=../bin/$dlname
+	      fi
+	      ;;
+	  esac
+	  $ECHO > $output "\
+# $outputname - a libtool library file
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# The name that we can dlopen(3).
+dlname='$tdlname'
+
+# Names of this library.
+library_names='$library_names'
+
+# The name of the static archive.
+old_library='$old_library'
+
+# Linker flags that cannot go in dependency_libs.
+inherited_linker_flags='$new_inherited_linker_flags'
+
+# Libraries that this one depends upon.
+dependency_libs='$dependency_libs'
+
+# Names of additional weak libraries provided by this library
+weak_library_names='$weak_libs'
+
+# Version information for $libname.
+current=$current
+age=$age
+revision=$revision
+
+# Is this an already installed library?
+installed=$installed
+
+# Should we warn about portability when linking against -modules?
+shouldnotlink=$module
+
+# Files to dlopen/dlpreopen
+dlopen='$dlfiles'
+dlpreopen='$dlprefiles'
+
+# Directory that this library needs to be installed in:
+libdir='$install_libdir'"
+	  if test no,yes = "$installed,$need_relink"; then
+	    $ECHO >> $output "\
+relink_command=\"$relink_command\""
+	  fi
+	done
+      }
+
+      # Do a symbolic link so that the libtool archive can be found in
+      # LD_LIBRARY_PATH before the program is installed.
+      func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
+      ;;
+    esac
+    exit $EXIT_SUCCESS
+}
+
+if test link = "$opt_mode" || test relink = "$opt_mode"; then
+  func_mode_link ${1+"$@"}
+fi
+
+
+# func_mode_uninstall arg...
+func_mode_uninstall ()
+{
+    $debug_cmd
+
+    RM=$nonopt
+    files=
+    rmforce=false
+    exit_status=0
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic=$magic
+
+    for arg
+    do
+      case $arg in
+      -f) func_append RM " $arg"; rmforce=: ;;
+      -*) func_append RM " $arg" ;;
+      *) func_append files " $arg" ;;
+      esac
+    done
+
+    test -z "$RM" && \
+      func_fatal_help "you must specify an RM program"
+
+    rmdirs=
+
+    for file in $files; do
+      func_dirname "$file" "" "."
+      dir=$func_dirname_result
+      if test . = "$dir"; then
+	odir=$objdir
+      else
+	odir=$dir/$objdir
+      fi
+      func_basename "$file"
+      name=$func_basename_result
+      test uninstall = "$opt_mode" && odir=$dir
+
+      # Remember odir for removal later, being careful to avoid duplicates
+      if test clean = "$opt_mode"; then
+	case " $rmdirs " in
+	  *" $odir "*) ;;
+	  *) func_append rmdirs " $odir" ;;
+	esac
+      fi
+
+      # Don't error if the file doesn't exist and rm -f was used.
+      if { test -L "$file"; } >/dev/null 2>&1 ||
+	 { test -h "$file"; } >/dev/null 2>&1 ||
+	 test -f "$file"; then
+	:
+      elif test -d "$file"; then
+	exit_status=1
+	continue
+      elif $rmforce; then
+	continue
+      fi
+
+      rmfiles=$file
+
+      case $name in
+      *.la)
+	# Possibly a libtool archive, so verify it.
+	if func_lalib_p "$file"; then
+	  func_source $dir/$name
+
+	  # Delete the libtool libraries and symlinks.
+	  for n in $library_names; do
+	    func_append rmfiles " $odir/$n"
+	  done
+	  test -n "$old_library" && func_append rmfiles " $odir/$old_library"
+
+	  case $opt_mode in
+	  clean)
+	    case " $library_names " in
+	    *" $dlname "*) ;;
+	    *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
+	    esac
+	    test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
+	    ;;
+	  uninstall)
+	    if test -n "$library_names"; then
+	      # Do each command in the postuninstall commands.
+	      func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1'
+	    fi
+
+	    if test -n "$old_library"; then
+	      # Do each command in the old_postuninstall commands.
+	      func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1'
+	    fi
+	    # FIXME: should reinstall the best remaining shared library.
+	    ;;
+	  esac
+	fi
+	;;
+
+      *.lo)
+	# Possibly a libtool object, so verify it.
+	if func_lalib_p "$file"; then
+
+	  # Read the .lo file
+	  func_source $dir/$name
+
+	  # Add PIC object to the list of files to remove.
+	  if test -n "$pic_object" && test none != "$pic_object"; then
+	    func_append rmfiles " $dir/$pic_object"
+	  fi
+
+	  # Add non-PIC object to the list of files to remove.
+	  if test -n "$non_pic_object" && test none != "$non_pic_object"; then
+	    func_append rmfiles " $dir/$non_pic_object"
+	  fi
+	fi
+	;;
+
+      *)
+	if test clean = "$opt_mode"; then
+	  noexename=$name
+	  case $file in
+	  *.exe)
+	    func_stripname '' '.exe' "$file"
+	    file=$func_stripname_result
+	    func_stripname '' '.exe' "$name"
+	    noexename=$func_stripname_result
+	    # $file with .exe has already been added to rmfiles,
+	    # add $file without .exe
+	    func_append rmfiles " $file"
+	    ;;
+	  esac
+	  # Do a test to see if this is a libtool program.
+	  if func_ltwrapper_p "$file"; then
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      relink_command=
+	      func_source $func_ltwrapper_scriptname_result
+	      func_append rmfiles " $func_ltwrapper_scriptname_result"
+	    else
+	      relink_command=
+	      func_source $dir/$noexename
+	    fi
+
+	    # note $name still contains .exe if it was in $file originally
+	    # as does the version of $file that was added into $rmfiles
+	    func_append rmfiles " $odir/$name $odir/${name}S.$objext"
+	    if test yes = "$fast_install" && test -n "$relink_command"; then
+	      func_append rmfiles " $odir/lt-$name"
+	    fi
+	    if test "X$noexename" != "X$name"; then
+	      func_append rmfiles " $odir/lt-$noexename.c"
+	    fi
+	  fi
+	fi
+	;;
+      esac
+      func_show_eval "$RM $rmfiles" 'exit_status=1'
+    done
+
+    # Try to remove the $objdir's in the directories where we deleted files
+    for dir in $rmdirs; do
+      if test -d "$dir"; then
+	func_show_eval "rmdir $dir >/dev/null 2>&1"
+      fi
+    done
+
+    exit $exit_status
+}
+
+if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then
+  func_mode_uninstall ${1+"$@"}
+fi
+
+test -z "$opt_mode" && {
+  help=$generic_help
+  func_fatal_help "you must specify a MODE"
+}
+
+test -z "$exec_cmd" && \
+  func_fatal_help "invalid operation mode '$opt_mode'"
+
+if test -n "$exec_cmd"; then
+  eval exec "$exec_cmd"
+  exit $EXIT_FAILURE
+fi
+
+exit $exit_status
+
+
+# The TAGs below are defined such that we never get into a situation
+# where we disable both kinds of libraries.  Given conflicting
+# choices, we go for a static library, that is the most portable,
+# since we can't tell whether shared libraries were disabled because
+# the user asked for that or because the platform doesn't support
+# them.  This is particularly important on AIX, because we don't
+# support having both static and shared libraries enabled at the same
+# time on that platform, so we default to a shared-only configuration.
+# If a disable-shared tag is given, we'll fallback to a static-only
+# configuration.  But we'll never go from static-only to shared-only.
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
+build_libtool_libs=no
+build_old_libs=yes
+# ### END LIBTOOL TAG CONFIG: disable-shared
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-static
+build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
+# ### END LIBTOOL TAG CONFIG: disable-static
+
+# Local Variables:
+# mode:shell-script
+# sh-indentation:2
+# End:
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/ac_have_attribute.m4 b/trunk/3rdparty/gperftools-2-fit/m4/ac_have_attribute.m4
new file mode 100644
index 000000000..19f4021e9
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/ac_have_attribute.m4
@@ -0,0 +1,16 @@
+AC_DEFUN([AX_C___ATTRIBUTE__], [
+  AC_MSG_CHECKING(for __attribute__)
+  AC_CACHE_VAL(ac_cv___attribute__, [
+    AC_TRY_COMPILE(
+      [#include 
+       static void foo(void) __attribute__ ((unused));
+       void foo(void) { exit(1); }],
+      [],
+      ac_cv___attribute__=yes,
+      ac_cv___attribute__=no
+    )])
+  if test "$ac_cv___attribute__" = "yes"; then
+    AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__])
+  fi
+  AC_MSG_RESULT($ac_cv___attribute__)
+])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/acx_nanosleep.m4 b/trunk/3rdparty/gperftools-2-fit/m4/acx_nanosleep.m4
new file mode 100644
index 000000000..1d443926f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/acx_nanosleep.m4
@@ -0,0 +1,35 @@
+# Check for support for nanosleep.  It's defined in , but on
+# some systems, such as solaris, you need to link in a library to use it.
+# We set acx_nanosleep_ok if nanosleep is supported; in that case,
+# NANOSLEEP_LIBS is set to whatever libraries are needed to support
+# nanosleep.
+
+AC_DEFUN([ACX_NANOSLEEP],
+[AC_MSG_CHECKING(if nanosleep requires any libraries)
+ AC_LANG_SAVE
+ AC_LANG_C
+ acx_nanosleep_ok="no"
+ NANOSLEEP_LIBS=
+ # For most folks, this should just work
+ AC_TRY_LINK([#include ],
+             [static struct timespec ts; nanosleep(&ts, NULL);],
+             [acx_nanosleep_ok=yes])
+ # For solaris, we may  need -lrt
+ if test "x$acx_nanosleep_ok" != "xyes"; then
+   OLD_LIBS="$LIBS"
+   LIBS="-lrt $LIBS"
+   AC_TRY_LINK([#include ],
+               [static struct timespec ts; nanosleep(&ts, NULL);],
+               [acx_nanosleep_ok=yes])
+   if test "x$acx_nanosleep_ok" = "xyes"; then
+     NANOSLEEP_LIBS="-lrt"
+   fi
+   LIBS="$OLD_LIBS"
+ fi
+ if test "x$acx_nanosleep_ok" != "xyes"; then
+   AC_MSG_ERROR([cannot find the nanosleep function])
+ else
+   AC_MSG_RESULT(${NANOSLEEP_LIBS:-no})
+ fi
+ AC_LANG_RESTORE
+])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/acx_pthread.m4 b/trunk/3rdparty/gperftools-2-fit/m4/acx_pthread.m4
new file mode 100644
index 000000000..89d42c744
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/acx_pthread.m4
@@ -0,0 +1,397 @@
+# This was retrieved from
+#    http://svn.0pointer.de/viewvc/trunk/common/acx_pthread.m4?revision=1277&root=avahi
+# See also (perhaps for new versions?)
+#    http://svn.0pointer.de/viewvc/trunk/common/acx_pthread.m4?root=avahi
+#
+# We've rewritten the inconsistency check code (from avahi), to work
+# more broadly.  In particular, it no longer assumes ld accepts -zdefs.
+# This caused a restructing of the code, but the functionality has only
+# changed a little.
+
+dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
+dnl
+dnl @summary figure out how to build C programs using POSIX threads
+dnl
+dnl This macro figures out how to build C programs using POSIX threads.
+dnl It sets the PTHREAD_LIBS output variable to the threads library and
+dnl linker flags, and the PTHREAD_CFLAGS output variable to any special
+dnl C compiler flags that are needed. (The user can also force certain
+dnl compiler flags/libs to be tested by setting these environment
+dnl variables.)
+dnl
+dnl Also sets PTHREAD_CC to any special C compiler that is needed for
+dnl multi-threaded programs (defaults to the value of CC otherwise).
+dnl (This is necessary on AIX to use the special cc_r compiler alias.)
+dnl
+dnl NOTE: You are assumed to not only compile your program with these
+dnl flags, but also link it with them as well. e.g. you should link
+dnl with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
+dnl $LIBS
+dnl
+dnl If you are only building threads programs, you may wish to use
+dnl these variables in your default LIBS, CFLAGS, and CC:
+dnl
+dnl        LIBS="$PTHREAD_LIBS $LIBS"
+dnl        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+dnl        CC="$PTHREAD_CC"
+dnl
+dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
+dnl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
+dnl that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
+dnl
+dnl ACTION-IF-FOUND is a list of shell commands to run if a threads
+dnl library is found, and ACTION-IF-NOT-FOUND is a list of commands to
+dnl run it if it is not found. If ACTION-IF-FOUND is not specified, the
+dnl default action will define HAVE_PTHREAD.
+dnl
+dnl Please let the authors know if this macro fails on any platform, or
+dnl if you have any other suggestions or comments. This macro was based
+dnl on work by SGJ on autoconf scripts for FFTW (www.fftw.org) (with
+dnl help from M. Frigo), as well as ac_pthread and hb_pthread macros
+dnl posted by Alejandro Forero Cuervo to the autoconf macro repository.
+dnl We are also grateful for the helpful feedback of numerous users.
+dnl
+dnl @category InstalledPackages
+dnl @author Steven G. Johnson 
+dnl @version 2006-05-29
+dnl @license GPLWithACException
+dnl 
+dnl Checks for GCC shared/pthread inconsistency based on work by
+dnl Marcin Owsiany 
+
+
+AC_DEFUN([ACX_PTHREAD], [
+AC_REQUIRE([AC_CANONICAL_HOST])
+AC_LANG_SAVE
+AC_LANG_C
+acx_pthread_ok=no
+
+# We used to check for pthread.h first, but this fails if pthread.h
+# requires special compiler flags (e.g. on True64 or Sequent).
+# It gets checked for in the link test anyway.
+
+# First of all, check if the user has set any of the PTHREAD_LIBS,
+# etcetera environment variables, and if threads linking works using
+# them:
+if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
+        save_CFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+        save_LIBS="$LIBS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
+        AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
+        AC_MSG_RESULT($acx_pthread_ok)
+        if test x"$acx_pthread_ok" = xno; then
+                PTHREAD_LIBS=""
+                PTHREAD_CFLAGS=""
+        fi
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+fi
+
+# We must check for the threads library under a number of different
+# names; the ordering is very important because some systems
+# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
+# libraries is broken (non-POSIX).
+
+# Create a list of thread flags to try.  Items starting with a "-" are
+# C compiler flags, and other items are library names, except for "none"
+# which indicates that we try without any flags at all, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+
+# The ordering *is* (sometimes) important.  Some notes on the
+# individual items follow:
+
+# pthreads: AIX (must check this before -lpthread)
+# none: in case threads are in libc; should be tried before -Kthread and
+#       other compiler flags to prevent continual compiler warnings
+# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
+# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
+# -pthreads: Solaris/gcc
+# -mthreads: Mingw32/gcc, Lynx/gcc
+# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
+#      doesn't hurt to check since this sometimes defines pthreads too;
+#      also defines -D_REENTRANT)
+#      ... -mt is also the pthreads flag for HP/aCC
+# pthread: Linux, etcetera
+# --thread-safe: KAI C++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case "${host_cpu}-${host_os}" in
+        *solaris*)
+
+        # On Solaris (at least, for some versions), libc contains stubbed
+        # (non-functional) versions of the pthreads routines, so link-based
+        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
+        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
+        # a function called by this macro, so we could check for that, but
+        # who knows whether they'll stub that too in a future libc.)  So,
+        # we'll just look for -pthreads and -lpthread first:
+
+        acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
+        ;;
+esac
+
+if test x"$acx_pthread_ok" = xno; then
+for flag in $acx_pthread_flags; do
+
+        case $flag in
+                none)
+                AC_MSG_CHECKING([whether pthreads work without any flags])
+                ;;
+
+                -*)
+                AC_MSG_CHECKING([whether pthreads work with $flag])
+                PTHREAD_CFLAGS="$flag"
+                ;;
+
+		pthread-config)
+		AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
+		if test x"$acx_pthread_config" = xno; then continue; fi
+		PTHREAD_CFLAGS="`pthread-config --cflags`"
+		PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+		;;
+
+                *)
+                AC_MSG_CHECKING([for the pthreads library -l$flag])
+                PTHREAD_LIBS="-l$flag"
+                ;;
+        esac
+
+        save_LIBS="$LIBS"
+        save_CFLAGS="$CFLAGS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+        # Check for various functions.  We must include pthread.h,
+        # since some functions may be macros.  (On the Sequent, we
+        # need a special flag -Kthread to make this header compile.)
+        # We check for pthread_join because it is in -lpthread on IRIX
+        # while pthread_create is in libc.  We check for pthread_attr_init
+        # due to DEC craziness with -lpthreads.  We check for
+        # pthread_cleanup_push because it is one of the few pthread
+        # functions on Solaris that doesn't have a non-functional libc stub.
+        # We try pthread_create on general principles.
+        AC_TRY_LINK([#include ],
+                    [pthread_t th; pthread_join(th, 0);
+                     pthread_attr_init(0); pthread_cleanup_push(0, 0);
+                     pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+                    [acx_pthread_ok=yes])
+
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+
+        AC_MSG_RESULT($acx_pthread_ok)
+        if test "x$acx_pthread_ok" = xyes; then
+                break;
+        fi
+
+        PTHREAD_LIBS=""
+        PTHREAD_CFLAGS=""
+done
+fi
+
+# Various other checks:
+if test "x$acx_pthread_ok" = xyes; then
+        save_LIBS="$LIBS"
+        LIBS="$PTHREAD_LIBS $LIBS"
+        save_CFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+        # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
+	AC_MSG_CHECKING([for joinable pthread attribute])
+	attr_name=unknown
+	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+	    AC_TRY_LINK([#include ], [int attr=$attr; return attr;],
+                        [attr_name=$attr; break])
+	done
+        AC_MSG_RESULT($attr_name)
+        if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
+            AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
+                               [Define to necessary symbol if this constant
+                                uses a non-standard name on your system.])
+        fi
+
+        AC_MSG_CHECKING([if more special flags are required for pthreads])
+        flag=no
+        case "${host_cpu}-${host_os}" in
+            *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
+            *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
+        esac
+        AC_MSG_RESULT(${flag})
+        if test "x$flag" != xno; then
+            PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
+        fi
+
+        LIBS="$save_LIBS"
+        CFLAGS="$save_CFLAGS"
+        # More AIX lossage: must compile with xlc_r or cc_r
+	if test x"$GCC" != xyes; then
+          AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
+        else
+          PTHREAD_CC=$CC
+	fi
+
+	# The next part tries to detect GCC inconsistency with -shared on some
+	# architectures and systems. The problem is that in certain
+	# configurations, when -shared is specified, GCC "forgets" to
+	# internally use various flags which are still necessary.
+	
+	#
+	# Prepare the flags
+	#
+	save_CFLAGS="$CFLAGS"
+	save_LIBS="$LIBS"
+	save_CC="$CC"
+	
+	# Try with the flags determined by the earlier checks.
+	#
+	# -Wl,-z,defs forces link-time symbol resolution, so that the
+	# linking checks with -shared actually have any value
+	#
+	# FIXME: -fPIC is required for -shared on many architectures,
+	# so we specify it here, but the right way would probably be to
+	# properly detect whether it is actually required.
+	CFLAGS="-shared -fPIC -Wl,-z,defs $CFLAGS $PTHREAD_CFLAGS"
+	LIBS="$PTHREAD_LIBS $LIBS"
+	CC="$PTHREAD_CC"
+	
+	# In order not to create several levels of indentation, we test
+	# the value of "$done" until we find the cure or run out of ideas.
+	done="no"
+	
+	# First, make sure the CFLAGS we added are actually accepted by our
+	# compiler.  If not (and OS X's ld, for instance, does not accept -z),
+	# then we can't do this test.
+	if test x"$done" = xno; then
+	   AC_MSG_CHECKING([whether to check for GCC pthread/shared inconsistencies])
+	   AC_TRY_LINK(,, , [done=yes])
+	
+	   if test "x$done" = xyes ; then
+	      AC_MSG_RESULT([no])
+	   else
+	      AC_MSG_RESULT([yes])
+	   fi
+	fi
+	
+	if test x"$done" = xno; then
+	   AC_MSG_CHECKING([whether -pthread is sufficient with -shared])
+	   AC_TRY_LINK([#include ],
+	      [pthread_t th; pthread_join(th, 0);
+	      pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	      pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+	      [done=yes])
+	   
+	   if test "x$done" = xyes; then
+	      AC_MSG_RESULT([yes])
+	   else
+	      AC_MSG_RESULT([no])
+	   fi
+	fi
+	
+	#
+	# Linux gcc on some architectures such as mips/mipsel forgets
+	# about -lpthread
+	#
+	if test x"$done" = xno; then
+	   AC_MSG_CHECKING([whether -lpthread fixes that])
+	   LIBS="-lpthread $PTHREAD_LIBS $save_LIBS"
+	   AC_TRY_LINK([#include ],
+	      [pthread_t th; pthread_join(th, 0);
+	      pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	      pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+	      [done=yes])
+	
+	   if test "x$done" = xyes; then
+	      AC_MSG_RESULT([yes])
+	      PTHREAD_LIBS="-lpthread $PTHREAD_LIBS"
+	   else
+	      AC_MSG_RESULT([no])
+	   fi
+	fi
+	#
+	# FreeBSD 4.10 gcc forgets to use -lc_r instead of -lc
+	#
+	if test x"$done" = xno; then
+	   AC_MSG_CHECKING([whether -lc_r fixes that])
+	   LIBS="-lc_r $PTHREAD_LIBS $save_LIBS"
+	   AC_TRY_LINK([#include ],
+	       [pthread_t th; pthread_join(th, 0);
+	        pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	        pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+	       [done=yes])
+	
+	   if test "x$done" = xyes; then
+	      AC_MSG_RESULT([yes])
+	      PTHREAD_LIBS="-lc_r $PTHREAD_LIBS"
+	   else
+	      AC_MSG_RESULT([no])
+	   fi
+	fi
+	if test x"$done" = xno; then
+	   # OK, we have run out of ideas
+	   AC_MSG_WARN([Impossible to determine how to use pthreads with shared libraries])
+	
+	   # so it's not safe to assume that we may use pthreads
+	   acx_pthread_ok=no
+	fi
+	
+	AC_MSG_CHECKING([whether what we have so far is sufficient with -nostdlib])
+	CFLAGS="-nostdlib $CFLAGS"
+	# we need c with nostdlib
+	LIBS="$LIBS -lc"
+	AC_TRY_LINK([#include ],
+	      [pthread_t th; pthread_join(th, 0);
+	       pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	       pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+	      [done=yes],[done=no])
+
+	if test "x$done" = xyes; then
+	   AC_MSG_RESULT([yes])
+	else
+	   AC_MSG_RESULT([no])
+	fi
+	
+	if test x"$done" = xno; then
+	   AC_MSG_CHECKING([whether -lpthread saves the day])
+	   LIBS="-lpthread $LIBS"
+	   AC_TRY_LINK([#include ],
+	      [pthread_t th; pthread_join(th, 0);
+	       pthread_attr_init(0); pthread_cleanup_push(0, 0);
+	       pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
+	      [done=yes],[done=no])
+
+	   if test "x$done" = xyes; then
+	      AC_MSG_RESULT([yes])
+	      PTHREAD_LIBS="$PTHREAD_LIBS -lpthread"
+	   else
+	      AC_MSG_RESULT([no])
+	      AC_MSG_WARN([Impossible to determine how to use pthreads with shared libraries and -nostdlib])
+	   fi
+	fi
+
+	CFLAGS="$save_CFLAGS"
+	LIBS="$save_LIBS"
+	CC="$save_CC"
+else
+        PTHREAD_CC="$CC"
+fi
+
+AC_SUBST(PTHREAD_LIBS)
+AC_SUBST(PTHREAD_CFLAGS)
+AC_SUBST(PTHREAD_CC)
+
+# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
+if test x"$acx_pthread_ok" = xyes; then
+        ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
+        :
+else
+        acx_pthread_ok=no
+        $2
+fi
+AC_LANG_RESTORE
+])dnl ACX_PTHREAD
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/ax_cxx_compile_stdcxx.m4 b/trunk/3rdparty/gperftools-2-fit/m4/ax_cxx_compile_stdcxx.m4
new file mode 100644
index 000000000..9e9eaedaa
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/ax_cxx_compile_stdcxx.m4
@@ -0,0 +1,948 @@
+# ===========================================================================
+#  https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional])
+#
+# DESCRIPTION
+#
+#   Check for baseline language coverage in the compiler for the specified
+#   version of the C++ standard.  If necessary, add switches to CXX and
+#   CXXCPP to enable support.  VERSION may be '11' (for the C++11 standard)
+#   or '14' (for the C++14 standard).
+#
+#   The second argument, if specified, indicates whether you insist on an
+#   extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
+#   -std=c++11).  If neither is specified, you get whatever works, with
+#   preference for an extended mode.
+#
+#   The third argument, if specified 'mandatory' or if left unspecified,
+#   indicates that baseline support for the specified C++ standard is
+#   required and that the macro should error out if no mode with that
+#   support is found.  If specified 'optional', then configuration proceeds
+#   regardless, after defining HAVE_CXX${VERSION} if and only if a
+#   supporting mode is found.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Benjamin Kosnik 
+#   Copyright (c) 2012 Zack Weinberg 
+#   Copyright (c) 2013 Roy Stogner 
+#   Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov 
+#   Copyright (c) 2015 Paul Norman 
+#   Copyright (c) 2015 Moritz Klammler 
+#   Copyright (c) 2016, 2018 Krzesimir Nowak 
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved.  This file is offered as-is, without any
+#   warranty.
+
+#serial 10
+
+dnl  This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
+dnl  (serial version number 13).
+
+AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
+  m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"],
+        [$1], [14], [ax_cxx_compile_alternatives="14 1y"],
+        [$1], [17], [ax_cxx_compile_alternatives="17 1z"],
+        [m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
+  m4_if([$2], [], [],
+        [$2], [ext], [],
+        [$2], [noext], [],
+        [m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX])])dnl
+  m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true],
+        [$3], [mandatory], [ax_cxx_compile_cxx$1_required=true],
+        [$3], [optional], [ax_cxx_compile_cxx$1_required=false],
+        [m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])])
+  AC_LANG_PUSH([C++])dnl
+  ac_success=no
+
+  m4_if([$2], [noext], [], [dnl
+  if test x$ac_success = xno; then
+    for alternative in ${ax_cxx_compile_alternatives}; do
+      switch="-std=gnu++${alternative}"
+      cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
+      AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
+                     $cachevar,
+        [ac_save_CXX="$CXX"
+         CXX="$CXX $switch"
+         AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
+          [eval $cachevar=yes],
+          [eval $cachevar=no])
+         CXX="$ac_save_CXX"])
+      if eval test x\$$cachevar = xyes; then
+        CXX="$CXX $switch"
+        if test -n "$CXXCPP" ; then
+          CXXCPP="$CXXCPP $switch"
+        fi
+        ac_success=yes
+        break
+      fi
+    done
+  fi])
+
+  m4_if([$2], [ext], [], [dnl
+  if test x$ac_success = xno; then
+    dnl HP's aCC needs +std=c++11 according to:
+    dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
+    dnl Cray's crayCC needs "-h std=c++11"
+    for alternative in ${ax_cxx_compile_alternatives}; do
+      for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
+        cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
+        AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
+                       $cachevar,
+          [ac_save_CXX="$CXX"
+           CXX="$CXX $switch"
+           AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
+            [eval $cachevar=yes],
+            [eval $cachevar=no])
+           CXX="$ac_save_CXX"])
+        if eval test x\$$cachevar = xyes; then
+          CXX="$CXX $switch"
+          if test -n "$CXXCPP" ; then
+            CXXCPP="$CXXCPP $switch"
+          fi
+          ac_success=yes
+          break
+        fi
+      done
+      if test x$ac_success = xyes; then
+        break
+      fi
+    done
+  fi])
+  AC_LANG_POP([C++])
+  if test x$ax_cxx_compile_cxx$1_required = xtrue; then
+    if test x$ac_success = xno; then
+      AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.])
+    fi
+  fi
+  if test x$ac_success = xno; then
+    HAVE_CXX$1=0
+    AC_MSG_NOTICE([No compiler with C++$1 support was found])
+  else
+    HAVE_CXX$1=1
+    AC_DEFINE(HAVE_CXX$1,1,
+              [define if the compiler supports basic C++$1 syntax])
+  fi
+  AC_SUBST(HAVE_CXX$1)
+])
+
+
+dnl  Test body for checking C++11 support
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11],
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+)
+
+
+dnl  Test body for checking C++14 support
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+)
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17],
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_17
+)
+
+dnl  Tests for new features in C++11
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
+
+// If the compiler admits that it is not ready for C++11, why torture it?
+// Hopefully, this will speed up the test.
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif __cplusplus < 201103L
+
+#error "This is not a C++11 compiler"
+
+#else
+
+namespace cxx11
+{
+
+  namespace test_static_assert
+  {
+
+    template 
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+  }
+
+  namespace test_final_override
+  {
+
+    struct Base
+    {
+      virtual void f() {}
+    };
+
+    struct Derived : public Base
+    {
+      virtual void f() override {}
+    };
+
+  }
+
+  namespace test_double_right_angle_brackets
+  {
+
+    template < typename T >
+    struct check {};
+
+    typedef check single_type;
+    typedef check> double_type;
+    typedef check>> triple_type;
+    typedef check>>> quadruple_type;
+
+  }
+
+  namespace test_decltype
+  {
+
+    int
+    f()
+    {
+      int a = 1;
+      decltype(a) b = 2;
+      return a + b;
+    }
+
+  }
+
+  namespace test_type_deduction
+  {
+
+    template < typename T1, typename T2 >
+    struct is_same
+    {
+      static const bool value = false;
+    };
+
+    template < typename T >
+    struct is_same
+    {
+      static const bool value = true;
+    };
+
+    template < typename T1, typename T2 >
+    auto
+    add(T1 a1, T2 a2) -> decltype(a1 + a2)
+    {
+      return a1 + a2;
+    }
+
+    int
+    test(const int c, volatile int v)
+    {
+      static_assert(is_same::value == true, "");
+      static_assert(is_same::value == false, "");
+      static_assert(is_same::value == false, "");
+      auto ac = c;
+      auto av = v;
+      auto sumi = ac + av + 'x';
+      auto sumf = ac + av + 1.0;
+      static_assert(is_same::value == true, "");
+      static_assert(is_same::value == true, "");
+      static_assert(is_same::value == true, "");
+      static_assert(is_same::value == false, "");
+      static_assert(is_same::value == true, "");
+      return (sumf > 0.0) ? sumi : add(c, v);
+    }
+
+  }
+
+  namespace test_noexcept
+  {
+
+    int f() { return 0; }
+    int g() noexcept { return 0; }
+
+    static_assert(noexcept(f()) == false, "");
+    static_assert(noexcept(g()) == true, "");
+
+  }
+
+  namespace test_constexpr
+  {
+
+    template < typename CharT >
+    unsigned long constexpr
+    strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
+    {
+      return *s ? strlen_c_r(s + 1, acc + 1) : acc;
+    }
+
+    template < typename CharT >
+    unsigned long constexpr
+    strlen_c(const CharT *const s) noexcept
+    {
+      return strlen_c_r(s, 0UL);
+    }
+
+    static_assert(strlen_c("") == 0UL, "");
+    static_assert(strlen_c("1") == 1UL, "");
+    static_assert(strlen_c("example") == 7UL, "");
+    static_assert(strlen_c("another\0example") == 7UL, "");
+
+  }
+
+  namespace test_rvalue_references
+  {
+
+    template < int N >
+    struct answer
+    {
+      static constexpr int value = N;
+    };
+
+    answer<1> f(int&)       { return answer<1>(); }
+    answer<2> f(const int&) { return answer<2>(); }
+    answer<3> f(int&&)      { return answer<3>(); }
+
+    void
+    test()
+    {
+      int i = 0;
+      const int c = 0;
+      static_assert(decltype(f(i))::value == 1, "");
+      static_assert(decltype(f(c))::value == 2, "");
+      static_assert(decltype(f(0))::value == 3, "");
+    }
+
+  }
+
+  namespace test_uniform_initialization
+  {
+
+    struct test
+    {
+      static const int zero {};
+      static const int one {1};
+    };
+
+    static_assert(test::zero == 0, "");
+    static_assert(test::one == 1, "");
+
+  }
+
+  namespace test_lambdas
+  {
+
+    void
+    test1()
+    {
+      auto lambda1 = [](){};
+      auto lambda2 = lambda1;
+      lambda1();
+      lambda2();
+    }
+
+    int
+    test2()
+    {
+      auto a = [](int i, int j){ return i + j; }(1, 2);
+      auto b = []() -> int { return '0'; }();
+      auto c = [=](){ return a + b; }();
+      auto d = [&](){ return c; }();
+      auto e = [a, &b](int x) mutable {
+        const auto identity = [](int y){ return y; };
+        for (auto i = 0; i < a; ++i)
+          a += b--;
+        return x + identity(a + b);
+      }(0);
+      return a + b + c + d + e;
+    }
+
+    int
+    test3()
+    {
+      const auto nullary = [](){ return 0; };
+      const auto unary = [](int x){ return x; };
+      using nullary_t = decltype(nullary);
+      using unary_t = decltype(unary);
+      const auto higher1st = [](nullary_t f){ return f(); };
+      const auto higher2nd = [unary](nullary_t f1){
+        return [unary, f1](unary_t f2){ return f2(unary(f1())); };
+      };
+      return higher1st(nullary) + higher2nd(nullary)(unary);
+    }
+
+  }
+
+  namespace test_variadic_templates
+  {
+
+    template 
+    struct sum;
+
+    template 
+    struct sum
+    {
+      static constexpr auto value = N0 + sum::value;
+    };
+
+    template <>
+    struct sum<>
+    {
+      static constexpr auto value = 0;
+    };
+
+    static_assert(sum<>::value == 0, "");
+    static_assert(sum<1>::value == 1, "");
+    static_assert(sum<23>::value == 23, "");
+    static_assert(sum<1, 2>::value == 3, "");
+    static_assert(sum<5, 5, 11>::value == 21, "");
+    static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");
+
+  }
+
+  // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
+  // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
+  // because of this.
+  namespace test_template_alias_sfinae
+  {
+
+    struct foo {};
+
+    template
+    using member = typename T::member_type;
+
+    template
+    void func(...) {}
+
+    template
+    void func(member*) {}
+
+    void test();
+
+    void test() { func(0); }
+
+  }
+
+}  // namespace cxx11
+
+#endif  // __cplusplus >= 201103L
+
+]])
+
+
+dnl  Tests for new features in C++14
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[
+
+// If the compiler admits that it is not ready for C++14, why torture it?
+// Hopefully, this will speed up the test.
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif __cplusplus < 201402L
+
+#error "This is not a C++14 compiler"
+
+#else
+
+namespace cxx14
+{
+
+  namespace test_polymorphic_lambdas
+  {
+
+    int
+    test()
+    {
+      const auto lambda = [](auto&&... args){
+        const auto istiny = [](auto x){
+          return (sizeof(x) == 1UL) ? 1 : 0;
+        };
+        const int aretiny[] = { istiny(args)... };
+        return aretiny[0];
+      };
+      return lambda(1, 1L, 1.0f, '1');
+    }
+
+  }
+
+  namespace test_binary_literals
+  {
+
+    constexpr auto ivii = 0b0000000000101010;
+    static_assert(ivii == 42, "wrong value");
+
+  }
+
+  namespace test_generalized_constexpr
+  {
+
+    template < typename CharT >
+    constexpr unsigned long
+    strlen_c(const CharT *const s) noexcept
+    {
+      auto length = 0UL;
+      for (auto p = s; *p; ++p)
+        ++length;
+      return length;
+    }
+
+    static_assert(strlen_c("") == 0UL, "");
+    static_assert(strlen_c("x") == 1UL, "");
+    static_assert(strlen_c("test") == 4UL, "");
+    static_assert(strlen_c("another\0test") == 7UL, "");
+
+  }
+
+  namespace test_lambda_init_capture
+  {
+
+    int
+    test()
+    {
+      auto x = 0;
+      const auto lambda1 = [a = x](int b){ return a + b; };
+      const auto lambda2 = [a = lambda1(x)](){ return a; };
+      return lambda2();
+    }
+
+  }
+
+  namespace test_digit_separators
+  {
+
+    constexpr auto ten_million = 100'000'000;
+    static_assert(ten_million == 100000000, "");
+
+  }
+
+  namespace test_return_type_deduction
+  {
+
+    auto f(int& x) { return x; }
+    decltype(auto) g(int& x) { return x; }
+
+    template < typename T1, typename T2 >
+    struct is_same
+    {
+      static constexpr auto value = false;
+    };
+
+    template < typename T >
+    struct is_same
+    {
+      static constexpr auto value = true;
+    };
+
+    int
+    test()
+    {
+      auto x = 0;
+      static_assert(is_same::value, "");
+      static_assert(is_same::value, "");
+      return x;
+    }
+
+  }
+
+}  // namespace cxx14
+
+#endif  // __cplusplus >= 201402L
+
+]])
+
+
+dnl  Tests for new features in C++17
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
+
+// If the compiler admits that it is not ready for C++17, why torture it?
+// Hopefully, this will speed up the test.
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif __cplusplus < 201703L
+
+#error "This is not a C++17 compiler"
+
+#else
+
+#include 
+#include 
+#include 
+
+namespace cxx17
+{
+
+  namespace test_constexpr_lambdas
+  {
+
+    constexpr int foo = [](){return 42;}();
+
+  }
+
+  namespace test::nested_namespace::definitions
+  {
+
+  }
+
+  namespace test_fold_expression
+  {
+
+    template
+    int multiply(Args... args)
+    {
+      return (args * ... * 1);
+    }
+
+    template
+    bool all(Args... args)
+    {
+      return (args && ...);
+    }
+
+  }
+
+  namespace test_extended_static_assert
+  {
+
+    static_assert (true);
+
+  }
+
+  namespace test_auto_brace_init_list
+  {
+
+    auto foo = {5};
+    auto bar {5};
+
+    static_assert(std::is_same, decltype(foo)>::value);
+    static_assert(std::is_same::value);
+  }
+
+  namespace test_typename_in_template_template_parameter
+  {
+
+    template typename X> struct D;
+
+  }
+
+  namespace test_fallthrough_nodiscard_maybe_unused_attributes
+  {
+
+    int f1()
+    {
+      return 42;
+    }
+
+    [[nodiscard]] int f2()
+    {
+      [[maybe_unused]] auto unused = f1();
+
+      switch (f1())
+      {
+      case 17:
+        f1();
+        [[fallthrough]];
+      case 42:
+        f1();
+      }
+      return f1();
+    }
+
+  }
+
+  namespace test_extended_aggregate_initialization
+  {
+
+    struct base1
+    {
+      int b1, b2 = 42;
+    };
+
+    struct base2
+    {
+      base2() {
+        b3 = 42;
+      }
+      int b3;
+    };
+
+    struct derived : base1, base2
+    {
+        int d;
+    };
+
+    derived d1 {{1, 2}, {}, 4};  // full initialization
+    derived d2 {{}, {}, 4};      // value-initialized bases
+
+  }
+
+  namespace test_general_range_based_for_loop
+  {
+
+    struct iter
+    {
+      int i;
+
+      int& operator* ()
+      {
+        return i;
+      }
+
+      const int& operator* () const
+      {
+        return i;
+      }
+
+      iter& operator++()
+      {
+        ++i;
+        return *this;
+      }
+    };
+
+    struct sentinel
+    {
+      int i;
+    };
+
+    bool operator== (const iter& i, const sentinel& s)
+    {
+      return i.i == s.i;
+    }
+
+    bool operator!= (const iter& i, const sentinel& s)
+    {
+      return !(i == s);
+    }
+
+    struct range
+    {
+      iter begin() const
+      {
+        return {0};
+      }
+
+      sentinel end() const
+      {
+        return {5};
+      }
+    };
+
+    void f()
+    {
+      range r {};
+
+      for (auto i : r)
+      {
+        [[maybe_unused]] auto v = i;
+      }
+    }
+
+  }
+
+  namespace test_lambda_capture_asterisk_this_by_value
+  {
+
+    struct t
+    {
+      int i;
+      int foo()
+      {
+        return [*this]()
+        {
+          return i;
+        }();
+      }
+    };
+
+  }
+
+  namespace test_enum_class_construction
+  {
+
+    enum class byte : unsigned char
+    {};
+
+    byte foo {42};
+
+  }
+
+  namespace test_constexpr_if
+  {
+
+    template 
+    int f ()
+    {
+      if constexpr(cond)
+      {
+        return 13;
+      }
+      else
+      {
+        return 42;
+      }
+    }
+
+  }
+
+  namespace test_selection_statement_with_initializer
+  {
+
+    int f()
+    {
+      return 13;
+    }
+
+    int f2()
+    {
+      if (auto i = f(); i > 0)
+      {
+        return 3;
+      }
+
+      switch (auto i = f(); i + 4)
+      {
+      case 17:
+        return 2;
+
+      default:
+        return 1;
+      }
+    }
+
+  }
+
+  namespace test_template_argument_deduction_for_class_templates
+  {
+
+    template 
+    struct pair
+    {
+      pair (T1 p1, T2 p2)
+        : m1 {p1},
+          m2 {p2}
+      {}
+
+      T1 m1;
+      T2 m2;
+    };
+
+    void f()
+    {
+      [[maybe_unused]] auto p = pair{13, 42u};
+    }
+
+  }
+
+  namespace test_non_type_auto_template_parameters
+  {
+
+    template 
+    struct B
+    {};
+
+    B<5> b1;
+    B<'a'> b2;
+
+  }
+
+  namespace test_structured_bindings
+  {
+
+    int arr[2] = { 1, 2 };
+    std::pair pr = { 1, 2 };
+
+    auto f1() -> int(&)[2]
+    {
+      return arr;
+    }
+
+    auto f2() -> std::pair&
+    {
+      return pr;
+    }
+
+    struct S
+    {
+      int x1 : 2;
+      volatile double y1;
+    };
+
+    S f3()
+    {
+      return {};
+    }
+
+    auto [ x1, y1 ] = f1();
+    auto& [ xr1, yr1 ] = f1();
+    auto [ x2, y2 ] = f2();
+    auto& [ xr2, yr2 ] = f2();
+    const auto [ x3, y3 ] = f3();
+
+  }
+
+  namespace test_exception_spec_type_system
+  {
+
+    struct Good {};
+    struct Bad {};
+
+    void g1() noexcept;
+    void g2();
+
+    template
+    Bad
+    f(T*, T*);
+
+    template
+    Good
+    f(T1*, T2*);
+
+    static_assert (std::is_same_v);
+
+  }
+
+  namespace test_inline_variables
+  {
+
+    template void f(T)
+    {}
+
+    template inline T g(T)
+    {
+      return T{};
+    }
+
+    template<> inline void f<>(int)
+    {}
+
+    template<> int g<>(int)
+    {
+      return 5;
+    }
+
+  }
+
+}  // namespace cxx17
+
+#endif  // __cplusplus < 201703L
+
+]])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/ax_generate_changelog.m4 b/trunk/3rdparty/gperftools-2-fit/m4/ax_generate_changelog.m4
new file mode 100644
index 000000000..d9d5cd105
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/ax_generate_changelog.m4
@@ -0,0 +1,99 @@
+# ===========================================================================
+#   http://www.gnu.org/software/autoconf-archive/ax_generate_changelog.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_GENERATE_CHANGELOG()
+#
+# DESCRIPTION
+#
+#   Builds a rule for generating a ChangeLog file from version control
+#   system commit messages.  Currently, the only supported VCS is git, but
+#   support for others could be added in future.
+#
+#   Defines GENERATE_CHANGELOG_RULES which should be substituted in your
+#   Makefile.
+#
+#   Usage example:
+#
+#   configure.ac:
+#
+#     AX_GENERATE_CHANGELOG
+#
+#   Makefile.am:
+#
+#     @GENERATE_CHANGELOG_RULES@
+#     CHANGELOG_START = 0.2.3^
+#     dist-hook: dist-ChangeLog
+#
+#   ChangeLog (stub committed to VCS):
+#
+#     The ChangeLog is auto-generated when releasing.
+#     If you are seeing this, use 'git log' for a detailed list of changes.
+#
+#   This results in a "dist-ChangeLog" rule being added to the Makefile.
+#   When run, "dist-ChangeLog" will generate a ChangeLog in the
+#   $(top_distdir), using $(CHANGELOG_GIT_FLAGS) to format the output from
+#   "git log" being run in $(CHANGELOG_GIT_DIR).
+#
+#   Unless Automake is initialised with the 'foreign' option, a dummy
+#   ChangeLog file must be committed to VCS in $(top_srcdir), containing the
+#   text above (for example).  It will be substituted by the automatically
+#   generated ChangeLog during "make dist".
+#
+# LICENSE
+#
+#   Copyright (c) 2015 David King 
+#   Copyright (c) 2015 Philip Withnall 
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved.  This file is offered as-is, without any
+#   warranty.
+
+#serial 1
+
+AC_DEFUN([AX_GENERATE_CHANGELOG],[
+	# Find git, defaulting to the 'missing' script so the user gets a nice
+	# message if git is missing, rather than a plain 'command not found'.
+	AC_PATH_PROG([GIT],[git],[${am_missing_run}git])
+	AC_SUBST([GIT])
+
+	# Build the ChangeLog rules.
+	m4_pattern_allow([AM_V_GEN])
+GENERATE_CHANGELOG_RULES='
+# Generate ChangeLog
+#
+# Optional:
+#  - CHANGELOG_START: git commit ID or tag name to output changelogs from
+#    (exclusive). (Default: include all commits)
+#  - CHANGELOG_GIT_FLAGS: General flags to pass to git-log when generating the
+#    ChangeLog. (Default: various)
+#  - CHANGELOG_GIT_DIR: .git directory to use. (Default: $(top_srcdir)/.git)
+
+# git-specific
+CHANGELOG_GIT_FLAGS ?= --stat -M -C --name-status --no-color
+CHANGELOG_GIT_DIR ?= $(top_srcdir)/.git
+
+ifeq ($(CHANGELOG_START),)
+CHANGELOG_GIT_RANGE =
+else
+CHANGELOG_GIT_RANGE = $(CHANGELOG_START)..
+endif
+
+# Generate a ChangeLog in $(top_distdir)
+dist-ChangeLog:
+	$(AM_V_GEN)if $(GIT) \
+		--git-dir=$(CHANGELOG_GIT_DIR) --work-tree=$(top_srcdir) log \
+		$(CHANGELOG_GIT_FLAGS) $(CHANGELOG_GIT_RANGE) \
+		| fmt --split-only >.ChangeLog.tmp; \
+	then mv -f .ChangeLog.tmp "$(top_distdir)/ChangeLog"; \
+	else rm -f .ChangeLog.tmp; exit 1; fi
+
+.PHONY: dist-ChangeLog
+'
+
+	AC_SUBST([GENERATE_CHANGELOG_RULES])
+	m4_ifdef([_AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE([GENERATE_CHANGELOG_RULES])])
+])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/install_prefix.m4 b/trunk/3rdparty/gperftools-2-fit/m4/install_prefix.m4
new file mode 100644
index 000000000..ef33f42e6
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/install_prefix.m4
@@ -0,0 +1,8 @@
+AC_DEFUN([AC_INSTALL_PREFIX],
+  [ac_cv_install_prefix="$prefix";
+   if test x"$ac_cv_install_prefix" = x"NONE" ; then
+     ac_cv_install_prefix="$ac_default_prefix";
+   fi
+   AC_DEFINE_UNQUOTED(INSTALL_PREFIX, "$ac_cv_install_prefix",
+     [prefix where we look for installed files])
+   ])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/libtool.m4 b/trunk/3rdparty/gperftools-2-fit/m4/libtool.m4
new file mode 100644
index 000000000..c4c02946d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/libtool.m4
@@ -0,0 +1,8394 @@
+# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
+#
+#   Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+m4_define([_LT_COPYING], [dnl
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the  same
+# distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+])
+
+# serial 58 LT_INIT
+
+
+# LT_PREREQ(VERSION)
+# ------------------
+# Complain and exit if this libtool version is less that VERSION.
+m4_defun([LT_PREREQ],
+[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1,
+       [m4_default([$3],
+		   [m4_fatal([Libtool version $1 or higher is required],
+		             63)])],
+       [$2])])
+
+
+# _LT_CHECK_BUILDDIR
+# ------------------
+# Complain if the absolute build directory name contains unusual characters
+m4_defun([_LT_CHECK_BUILDDIR],
+[case `pwd` in
+  *\ * | *\	*)
+    AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;;
+esac
+])
+
+
+# LT_INIT([OPTIONS])
+# ------------------
+AC_DEFUN([LT_INIT],
+[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK
+AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+AC_BEFORE([$0], [LT_LANG])dnl
+AC_BEFORE([$0], [LT_OUTPUT])dnl
+AC_BEFORE([$0], [LTDL_INIT])dnl
+m4_require([_LT_CHECK_BUILDDIR])dnl
+
+dnl Autoconf doesn't catch unexpanded LT_ macros by default:
+m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl
+m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl
+dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4
+dnl unless we require an AC_DEFUNed macro:
+AC_REQUIRE([LTOPTIONS_VERSION])dnl
+AC_REQUIRE([LTSUGAR_VERSION])dnl
+AC_REQUIRE([LTVERSION_VERSION])dnl
+AC_REQUIRE([LTOBSOLETE_VERSION])dnl
+m4_require([_LT_PROG_LTMAIN])dnl
+
+_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}])
+
+dnl Parse OPTIONS
+_LT_SET_OPTIONS([$0], [$1])
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS=$ltmain
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+AC_SUBST(LIBTOOL)dnl
+
+_LT_SETUP
+
+# Only expand once:
+m4_define([LT_INIT])
+])# LT_INIT
+
+# Old names:
+AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT])
+AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PROG_LIBTOOL], [])
+dnl AC_DEFUN([AM_PROG_LIBTOOL], [])
+
+
+# _LT_PREPARE_CC_BASENAME
+# -----------------------
+m4_defun([_LT_PREPARE_CC_BASENAME], [
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in @S|@*""; do
+      case $cc_temp in
+        compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
+        distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+])# _LT_PREPARE_CC_BASENAME
+
+
+# _LT_CC_BASENAME(CC)
+# -------------------
+# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME,
+# but that macro is also expanded into generated libtool script, which
+# arranges for $SED and $ECHO to be set by different means.
+m4_defun([_LT_CC_BASENAME],
+[m4_require([_LT_PREPARE_CC_BASENAME])dnl
+AC_REQUIRE([_LT_DECL_SED])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+func_cc_basename $1
+cc_basename=$func_cc_basename_result
+])
+
+
+# _LT_FILEUTILS_DEFAULTS
+# ----------------------
+# It is okay to use these file commands and assume they have been set
+# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'.
+m4_defun([_LT_FILEUTILS_DEFAULTS],
+[: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+])# _LT_FILEUTILS_DEFAULTS
+
+
+# _LT_SETUP
+# ---------
+m4_defun([_LT_SETUP],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+
+_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl
+dnl
+_LT_DECL([], [host_alias], [0], [The host system])dnl
+_LT_DECL([], [host], [0])dnl
+_LT_DECL([], [host_os], [0])dnl
+dnl
+_LT_DECL([], [build_alias], [0], [The build system])dnl
+_LT_DECL([], [build], [0])dnl
+_LT_DECL([], [build_os], [0])dnl
+dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+dnl
+AC_REQUIRE([AC_PROG_LN_S])dnl
+test -z "$LN_S" && LN_S="ln -s"
+_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl
+dnl
+AC_REQUIRE([LT_CMD_MAX_LEN])dnl
+_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl
+_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl
+dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl
+m4_require([_LT_CMD_RELOAD])dnl
+m4_require([_LT_CHECK_MAGIC_METHOD])dnl
+m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl
+m4_require([_LT_CMD_OLD_ARCHIVE])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_WITH_SYSROOT])dnl
+m4_require([_LT_CMD_TRUNCATE])dnl
+
+_LT_CONFIG_LIBTOOL_INIT([
+# See if we are running on zsh, and set the options that allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+])
+if test -n "${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+
+_LT_CHECK_OBJDIR
+
+m4_require([_LT_TAG_COMPILER])dnl
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test set != "${COLLECT_NAMES+set}"; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a '.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+old_CC=$CC
+old_CFLAGS=$CFLAGS
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+_LT_CC_BASENAME([$compiler])
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    _LT_PATH_MAGIC
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+LT_SUPPORTED_TAG([CC])
+_LT_LANG_C_CONFIG
+_LT_LANG_DEFAULT_CONFIG
+_LT_CONFIG_COMMANDS
+])# _LT_SETUP
+
+
+# _LT_PREPARE_SED_QUOTE_VARS
+# --------------------------
+# Define a few sed substitution that help us do robust quoting.
+m4_defun([_LT_PREPARE_SED_QUOTE_VARS],
+[# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\([["`$\\]]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\([["`\\]]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+])
+
+# _LT_PROG_LTMAIN
+# ---------------
+# Note that this code is called both from 'configure', and 'config.status'
+# now that we use AC_CONFIG_COMMANDS to generate libtool.  Notably,
+# 'config.status' has no value for ac_aux_dir unless we are using Automake,
+# so we pass a copy along to make sure it has a sensible value anyway.
+m4_defun([_LT_PROG_LTMAIN],
+[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl
+_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir'])
+ltmain=$ac_aux_dir/ltmain.sh
+])# _LT_PROG_LTMAIN
+
+
+## ------------------------------------- ##
+## Accumulate code for creating libtool. ##
+## ------------------------------------- ##
+
+# So that we can recreate a full libtool script including additional
+# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS
+# in macros and then make a single call at the end using the 'libtool'
+# label.
+
+
+# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS])
+# ----------------------------------------
+# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL_INIT],
+[m4_ifval([$1],
+          [m4_append([_LT_OUTPUT_LIBTOOL_INIT],
+                     [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_INIT])
+
+
+# _LT_CONFIG_LIBTOOL([COMMANDS])
+# ------------------------------
+# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL],
+[m4_ifval([$1],
+          [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS],
+                     [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS])
+
+
+# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS])
+# -----------------------------------------------------
+m4_defun([_LT_CONFIG_SAVE_COMMANDS],
+[_LT_CONFIG_LIBTOOL([$1])
+_LT_CONFIG_LIBTOOL_INIT([$2])
+])
+
+
+# _LT_FORMAT_COMMENT([COMMENT])
+# -----------------------------
+# Add leading comment marks to the start of each line, and a trailing
+# full-stop to the whole comment if one is not present already.
+m4_define([_LT_FORMAT_COMMENT],
+[m4_ifval([$1], [
+m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])],
+              [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.])
+)])
+
+
+
+## ------------------------ ##
+## FIXME: Eliminate VARNAME ##
+## ------------------------ ##
+
+
+# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?])
+# -------------------------------------------------------------------
+# CONFIGNAME is the name given to the value in the libtool script.
+# VARNAME is the (base) name used in the configure script.
+# VALUE may be 0, 1 or 2 for a computed quote escaped value based on
+# VARNAME.  Any other value will be used directly.
+m4_define([_LT_DECL],
+[lt_if_append_uniq([lt_decl_varnames], [$2], [, ],
+    [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name],
+	[m4_ifval([$1], [$1], [$2])])
+    lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3])
+    m4_ifval([$4],
+	[lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])])
+    lt_dict_add_subkey([lt_decl_dict], [$2],
+	[tagged?], [m4_ifval([$5], [yes], [no])])])
+])
+
+
+# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION])
+# --------------------------------------------------------
+m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])])
+
+
+# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_tag_varnames],
+[_lt_decl_filter([tagged?], [yes], $@)])
+
+
+# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..])
+# ---------------------------------------------------------
+m4_define([_lt_decl_filter],
+[m4_case([$#],
+  [0], [m4_fatal([$0: too few arguments: $#])],
+  [1], [m4_fatal([$0: too few arguments: $#: $1])],
+  [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)],
+  [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)],
+  [lt_dict_filter([lt_decl_dict], $@)])[]dnl
+])
+
+
+# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...])
+# --------------------------------------------------
+m4_define([lt_decl_quote_varnames],
+[_lt_decl_filter([value], [1], $@)])
+
+
+# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_dquote_varnames],
+[_lt_decl_filter([value], [2], $@)])
+
+
+# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_varnames_tagged],
+[m4_assert([$# <= 2])dnl
+_$0(m4_quote(m4_default([$1], [[, ]])),
+    m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]),
+    m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))])
+m4_define([_lt_decl_varnames_tagged],
+[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])])
+
+
+# lt_decl_all_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_all_varnames],
+[_$0(m4_quote(m4_default([$1], [[, ]])),
+     m4_if([$2], [],
+	   m4_quote(lt_decl_varnames),
+	m4_quote(m4_shift($@))))[]dnl
+])
+m4_define([_lt_decl_all_varnames],
+[lt_join($@, lt_decl_varnames_tagged([$1],
+			lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl
+])
+
+
+# _LT_CONFIG_STATUS_DECLARE([VARNAME])
+# ------------------------------------
+# Quote a variable value, and forward it to 'config.status' so that its
+# declaration there will have the same value as in 'configure'.  VARNAME
+# must have a single quote delimited value for this to work.
+m4_define([_LT_CONFIG_STATUS_DECLARE],
+[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`'])
+
+
+# _LT_CONFIG_STATUS_DECLARATIONS
+# ------------------------------
+# We delimit libtool config variables with single quotes, so when
+# we write them to config.status, we have to be sure to quote all
+# embedded single quotes properly.  In configure, this macro expands
+# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
+#
+#    ='`$ECHO "$" | $SED "$delay_single_quote_subst"`'
+m4_defun([_LT_CONFIG_STATUS_DECLARATIONS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames),
+    [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAGS
+# ----------------
+# Output comment and list of tags supported by the script
+m4_defun([_LT_LIBTOOL_TAGS],
+[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
+available_tags='_LT_TAGS'dnl
+])
+
+
+# _LT_LIBTOOL_DECLARE(VARNAME, [TAG])
+# -----------------------------------
+# Extract the dictionary values for VARNAME (optionally with TAG) and
+# expand to a commented shell variable setting:
+#
+#    # Some comment about what VAR is for.
+#    visible_name=$lt_internal_name
+m4_define([_LT_LIBTOOL_DECLARE],
+[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1],
+					   [description])))[]dnl
+m4_pushdef([_libtool_name],
+    m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl
+m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])),
+    [0], [_libtool_name=[$]$1],
+    [1], [_libtool_name=$lt_[]$1],
+    [2], [_libtool_name=$lt_[]$1],
+    [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl
+m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl
+])
+
+
+# _LT_LIBTOOL_CONFIG_VARS
+# -----------------------
+# Produce commented declarations of non-tagged libtool config variables
+# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool'
+# script.  Tagged libtool config variables (even for the LIBTOOL CONFIG
+# section) are produced by _LT_LIBTOOL_TAG_VARS.
+m4_defun([_LT_LIBTOOL_CONFIG_VARS],
+[m4_foreach([_lt_var],
+    m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
+    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAG_VARS(TAG)
+# -------------------------
+m4_define([_LT_LIBTOOL_TAG_VARS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
+    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
+
+
+# _LT_TAGVAR(VARNAME, [TAGNAME])
+# ------------------------------
+m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
+
+
+# _LT_CONFIG_COMMANDS
+# -------------------
+# Send accumulated output to $CONFIG_STATUS.  Thanks to the lists of
+# variables for single and double quote escaping we saved from calls
+# to _LT_DECL, we can put quote escaped variables declarations
+# into 'config.status', and then the shell code to quote escape them in
+# for loops in 'config.status'.  Finally, any additional code accumulated
+# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
+m4_defun([_LT_CONFIG_COMMANDS],
+[AC_PROVIDE_IFELSE([LT_OUTPUT],
+	dnl If the libtool generation code has been placed in $CONFIG_LT,
+	dnl instead of duplicating it all over again into config.status,
+	dnl then we will have config.status run $CONFIG_LT later, so it
+	dnl needs to know what name is stored there:
+        [AC_CONFIG_COMMANDS([libtool],
+            [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
+    dnl If the libtool generation code is destined for config.status,
+    dnl expand the accumulated commands and init code now:
+    [AC_CONFIG_COMMANDS([libtool],
+        [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
+])#_LT_CONFIG_COMMANDS
+
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
+[
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+_LT_CONFIG_STATUS_DECLARATIONS
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$[]1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_quote_varnames); do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[[\\\\\\\`\\"\\\$]]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_dquote_varnames); do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[[\\\\\\\`\\"\\\$]]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+_LT_OUTPUT_LIBTOOL_INIT
+])
+
+# _LT_GENERATED_FILE_INIT(FILE, [COMMENT])
+# ------------------------------------
+# Generate a child script FILE with all initialization necessary to
+# reuse the environment learned by the parent script, and make the
+# file executable.  If COMMENT is supplied, it is inserted after the
+# '#!' sequence but before initialization text begins.  After this
+# macro, additional text can be appended to FILE to form the body of
+# the child script.  The macro ends with non-zero status if the
+# file could not be fully written (such as if the disk is full).
+m4_ifdef([AS_INIT_GENERATED],
+[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])],
+[m4_defun([_LT_GENERATED_FILE_INIT],
+[m4_require([AS_PREPARE])]dnl
+[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl
+[lt_write_fail=0
+cat >$1 <<_ASEOF || lt_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+$2
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$1 <<\_ASEOF || lt_write_fail=1
+AS_SHELL_SANITIZE
+_AS_PREPARE
+exec AS_MESSAGE_FD>&1
+_ASEOF
+test 0 = "$lt_write_fail" && chmod +x $1[]dnl
+m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT
+
+# LT_OUTPUT
+# ---------
+# This macro allows early generation of the libtool script (before
+# AC_OUTPUT is called), incase it is used in configure for compilation
+# tests.
+AC_DEFUN([LT_OUTPUT],
+[: ${CONFIG_LT=./config.lt}
+AC_MSG_NOTICE([creating $CONFIG_LT])
+_LT_GENERATED_FILE_INIT(["$CONFIG_LT"],
+[# Run this file to recreate a libtool stub with the current configuration.])
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+lt_cl_silent=false
+exec AS_MESSAGE_LOG_FD>>config.log
+{
+  echo
+  AS_BOX([Running $as_me.])
+} >&AS_MESSAGE_LOG_FD
+
+lt_cl_help="\
+'$as_me' creates a local libtool stub from the current configuration,
+for use in further configure time tests before the real libtool is
+generated.
+
+Usage: $[0] [[OPTIONS]]
+
+  -h, --help      print this help, then exit
+  -V, --version   print version number, then exit
+  -q, --quiet     do not print progress messages
+  -d, --debug     don't remove temporary files
+
+Report bugs to ."
+
+lt_cl_version="\
+m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
+m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
+configured by $[0], generated by m4_PACKAGE_STRING.
+
+Copyright (C) 2011 Free Software Foundation, Inc.
+This config.lt script is free software; the Free Software Foundation
+gives unlimited permision to copy, distribute and modify it."
+
+while test 0 != $[#]
+do
+  case $[1] in
+    --version | --v* | -V )
+      echo "$lt_cl_version"; exit 0 ;;
+    --help | --h* | -h )
+      echo "$lt_cl_help"; exit 0 ;;
+    --debug | --d* | -d )
+      debug=: ;;
+    --quiet | --q* | --silent | --s* | -q )
+      lt_cl_silent=: ;;
+
+    -*) AC_MSG_ERROR([unrecognized option: $[1]
+Try '$[0] --help' for more information.]) ;;
+
+    *) AC_MSG_ERROR([unrecognized argument: $[1]
+Try '$[0] --help' for more information.]) ;;
+  esac
+  shift
+done
+
+if $lt_cl_silent; then
+  exec AS_MESSAGE_FD>/dev/null
+fi
+_LTEOF
+
+cat >>"$CONFIG_LT" <<_LTEOF
+_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
+_LTEOF
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+AC_MSG_NOTICE([creating $ofile])
+_LT_OUTPUT_LIBTOOL_COMMANDS
+AS_EXIT(0)
+_LTEOF
+chmod +x "$CONFIG_LT"
+
+# configure is writing to config.log, but config.lt does its own redirection,
+# appending to config.log, which fails on DOS, as config.log is still kept
+# open by configure.  Here we exec the FD to /dev/null, effectively closing
+# config.log, so it can be properly (re)opened and appended to by config.lt.
+lt_cl_success=:
+test yes = "$silent" &&
+  lt_config_lt_args="$lt_config_lt_args --quiet"
+exec AS_MESSAGE_LOG_FD>/dev/null
+$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
+exec AS_MESSAGE_LOG_FD>>config.log
+$lt_cl_success || AS_EXIT(1)
+])# LT_OUTPUT
+
+
+# _LT_CONFIG(TAG)
+# ---------------
+# If TAG is the built-in tag, create an initial libtool script with a
+# default configuration from the untagged config vars.  Otherwise add code
+# to config.status for appending the configuration named by TAG from the
+# matching tagged config vars.
+m4_defun([_LT_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_CONFIG_SAVE_COMMANDS([
+  m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
+  m4_if(_LT_TAG, [C], [
+    # See if we are running on zsh, and set the options that allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}"; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile=${ofile}T
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+# Generated automatically by $as_me ($PACKAGE) $VERSION
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+_LT_COPYING
+_LT_LIBTOOL_TAGS
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
+
+# ### BEGIN LIBTOOL CONFIG
+_LT_LIBTOOL_CONFIG_VARS
+_LT_LIBTOOL_TAG_VARS
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+    cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_PREPARE_MUNGE_PATH_LIST
+_LT_PREPARE_CC_BASENAME
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test set != "${COLLECT_NAMES+set}"; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+  _LT_PROG_LTMAIN
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+],
+[cat <<_LT_EOF >> "$ofile"
+
+dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
+dnl in a comment (ie after a #).
+# ### BEGIN LIBTOOL TAG CONFIG: $1
+_LT_LIBTOOL_TAG_VARS(_LT_TAG)
+# ### END LIBTOOL TAG CONFIG: $1
+_LT_EOF
+])dnl /m4_if
+],
+[m4_if([$1], [], [
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    RM='$RM'
+    ofile='$ofile'], [])
+])dnl /_LT_CONFIG_SAVE_COMMANDS
+])# _LT_CONFIG
+
+
+# LT_SUPPORTED_TAG(TAG)
+# ---------------------
+# Trace this macro to discover what tags are supported by the libtool
+# --tag option, using:
+#    autoconf --trace 'LT_SUPPORTED_TAG:$1'
+AC_DEFUN([LT_SUPPORTED_TAG], [])
+
+
+# C support is built-in for now
+m4_define([_LT_LANG_C_enabled], [])
+m4_define([_LT_TAGS], [])
+
+
+# LT_LANG(LANG)
+# -------------
+# Enable libtool support for the given language if not already enabled.
+AC_DEFUN([LT_LANG],
+[AC_BEFORE([$0], [LT_OUTPUT])dnl
+m4_case([$1],
+  [C],			[_LT_LANG(C)],
+  [C++],		[_LT_LANG(CXX)],
+  [Go],			[_LT_LANG(GO)],
+  [Java],		[_LT_LANG(GCJ)],
+  [Fortran 77],		[_LT_LANG(F77)],
+  [Fortran],		[_LT_LANG(FC)],
+  [Windows Resource],	[_LT_LANG(RC)],
+  [m4_ifdef([_LT_LANG_]$1[_CONFIG],
+    [_LT_LANG($1)],
+    [m4_fatal([$0: unsupported language: "$1"])])])dnl
+])# LT_LANG
+
+
+# _LT_LANG(LANGNAME)
+# ------------------
+m4_defun([_LT_LANG],
+[m4_ifdef([_LT_LANG_]$1[_enabled], [],
+  [LT_SUPPORTED_TAG([$1])dnl
+  m4_append([_LT_TAGS], [$1 ])dnl
+  m4_define([_LT_LANG_]$1[_enabled], [])dnl
+  _LT_LANG_$1_CONFIG($1)])dnl
+])# _LT_LANG
+
+
+m4_ifndef([AC_PROG_GO], [
+############################################################
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_GO.  When it is available in    #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+############################################################
+m4_defun([AC_PROG_GO],
+[AC_LANG_PUSH(Go)dnl
+AC_ARG_VAR([GOC],     [Go compiler command])dnl
+AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl
+_AC_ARG_VAR_LDFLAGS()dnl
+AC_CHECK_TOOL(GOC, gccgo)
+if test -z "$GOC"; then
+  if test -n "$ac_tool_prefix"; then
+    AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo])
+  fi
+fi
+if test -z "$GOC"; then
+  AC_CHECK_PROG(GOC, gccgo, gccgo, false)
+fi
+])#m4_defun
+])#m4_ifndef
+
+
+# _LT_LANG_DEFAULT_CONFIG
+# -----------------------
+m4_defun([_LT_LANG_DEFAULT_CONFIG],
+[AC_PROVIDE_IFELSE([AC_PROG_CXX],
+  [LT_LANG(CXX)],
+  [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_F77],
+  [LT_LANG(F77)],
+  [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_FC],
+  [LT_LANG(FC)],
+  [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
+
+dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
+dnl pulling things in needlessly.
+AC_PROVIDE_IFELSE([AC_PROG_GCJ],
+  [LT_LANG(GCJ)],
+  [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
+    [LT_LANG(GCJ)],
+    [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
+      [LT_LANG(GCJ)],
+      [m4_ifdef([AC_PROG_GCJ],
+	[m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
+       m4_ifdef([A][M_PROG_GCJ],
+	[m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
+       m4_ifdef([LT_PROG_GCJ],
+	[m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
+
+AC_PROVIDE_IFELSE([AC_PROG_GO],
+  [LT_LANG(GO)],
+  [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])])
+
+AC_PROVIDE_IFELSE([LT_PROG_RC],
+  [LT_LANG(RC)],
+  [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
+])# _LT_LANG_DEFAULT_CONFIG
+
+# Obsolete macros:
+AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
+AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
+AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
+AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
+AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
+dnl AC_DEFUN([AC_LIBTOOL_F77], [])
+dnl AC_DEFUN([AC_LIBTOOL_FC], [])
+dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
+dnl AC_DEFUN([AC_LIBTOOL_RC], [])
+
+
+# _LT_TAG_COMPILER
+# ----------------
+m4_defun([_LT_TAG_COMPILER],
+[AC_REQUIRE([AC_PROG_CC])dnl
+
+_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
+_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
+_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
+_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+])# _LT_TAG_COMPILER
+
+
+# _LT_COMPILER_BOILERPLATE
+# ------------------------
+# Check for compiler boilerplate output or warnings with
+# the simple compiler test code.
+m4_defun([_LT_COMPILER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+])# _LT_COMPILER_BOILERPLATE
+
+
+# _LT_LINKER_BOILERPLATE
+# ----------------------
+# Check for linker boilerplate output or warnings with
+# the simple link test code.
+m4_defun([_LT_LINKER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+])# _LT_LINKER_BOILERPLATE
+
+# _LT_REQUIRED_DARWIN_CHECKS
+# -------------------------
+m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
+  case $host_os in
+    rhapsody* | darwin*)
+    AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
+    AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
+    AC_CHECK_TOOL([LIPO], [lipo], [:])
+    AC_CHECK_TOOL([OTOOL], [otool], [:])
+    AC_CHECK_TOOL([OTOOL64], [otool64], [:])
+    _LT_DECL([], [DSYMUTIL], [1],
+      [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
+    _LT_DECL([], [NMEDIT], [1],
+      [Tool to change global to local symbols on Mac OS X])
+    _LT_DECL([], [LIPO], [1],
+      [Tool to manipulate fat objects and archives on Mac OS X])
+    _LT_DECL([], [OTOOL], [1],
+      [ldd/readelf like tool for Mach-O binaries on Mac OS X])
+    _LT_DECL([], [OTOOL64], [1],
+      [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
+
+    AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
+      [lt_cv_apple_cc_single_mod=no
+      if test -z "$LT_MULTI_MODULE"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi])
+
+    AC_CACHE_CHECK([for -exported_symbols_list linker flag],
+      [lt_cv_ld_exported_symbols_list],
+      [lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+	[lt_cv_ld_exported_symbols_list=yes],
+	[lt_cv_ld_exported_symbols_list=no])
+	LDFLAGS=$save_LDFLAGS
+    ])
+
+    AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
+      [lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD
+      echo "$AR cr libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
+      $AR cr libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
+      echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
+      $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&AS_MESSAGE_LOG_FD
+      elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&AS_MESSAGE_LOG_FD
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+    ])
+    case $host_os in
+    rhapsody* | darwin1.[[012]])
+      _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+    darwin*) # darwin 5.x on
+      # if running on 10.5 or later, the deployment target defaults
+      # to the OS version, if on x86, and 10.4, the deployment
+      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	10.0,*86*-darwin8*|10.0,*-darwin[[912]]*)
+	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+	10.[[012]][[,.]]*)
+	  _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+	10.*|11.*)
+	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test yes = "$lt_cv_apple_cc_single_mod"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test yes = "$lt_cv_ld_exported_symbols_list"; then
+      _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
+    fi
+    if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+])
+
+
+# _LT_DARWIN_LINKER_FEATURES([TAG])
+# ---------------------------------
+# Checks for linker and compiler features on darwin
+m4_defun([_LT_DARWIN_LINKER_FEATURES],
+[
+  m4_require([_LT_REQUIRED_DARWIN_CHECKS])
+  _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+  _LT_TAGVAR(hardcode_direct, $1)=no
+  _LT_TAGVAR(hardcode_automatic, $1)=yes
+  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  if test yes = "$lt_cv_ld_force_load"; then
+    _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+    m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes],
+                  [FC],  [_LT_TAGVAR(compiler_needs_object, $1)=yes])
+  else
+    _LT_TAGVAR(whole_archive_flag_spec, $1)=''
+  fi
+  _LT_TAGVAR(link_all_deplibs, $1)=yes
+  _LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined
+  case $cc_basename in
+     ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test yes = "$_lt_dar_can_shared"; then
+    output_verbose_link_cmd=func_echo_all
+    _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+    _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+    _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+    _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+    m4_if([$1], [CXX],
+[   if test yes != "$lt_cv_apple_cc_single_mod"; then
+      _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
+      _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
+    fi
+],[])
+  else
+  _LT_TAGVAR(ld_shlibs, $1)=no
+  fi
+])
+
+# _LT_SYS_MODULE_PATH_AIX([TAGNAME])
+# ----------------------------------
+# Links a minimal program and checks the executable
+# for the system default hardcoded library path. In most cases,
+# this is /usr/lib:/lib, but when the MPI compilers are used
+# the location of the communication and MPI libs are included too.
+# If we don't find anything, use the default library path according
+# to the aix ld manual.
+# Store the results from the different compilers for each TAGNAME.
+# Allow to override them for all tags through lt_cv_aix_libpath.
+m4_defun([_LT_SYS_MODULE_PATH_AIX],
+[m4_require([_LT_DECL_SED])dnl
+if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])],
+  [AC_LINK_IFELSE([AC_LANG_PROGRAM],[
+  lt_aix_libpath_sed='[
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }]'
+  _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+    _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi],[])
+  if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+    _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib
+  fi
+  ])
+  aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])
+fi
+])# _LT_SYS_MODULE_PATH_AIX
+
+
+# _LT_SHELL_INIT(ARG)
+# -------------------
+m4_define([_LT_SHELL_INIT],
+[m4_divert_text([M4SH-INIT], [$1
+])])# _LT_SHELL_INIT
+
+
+
+# _LT_PROG_ECHO_BACKSLASH
+# -----------------------
+# Find how we can fake an echo command that does not interpret backslash.
+# In particular, with Autoconf 2.60 or later we add some code to the start
+# of the generated configure script that will find a shell with a builtin
+# printf (that we can use as an echo command).
+m4_defun([_LT_PROG_ECHO_BACKSLASH],
+[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+AC_MSG_CHECKING([how to print strings])
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$[]1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*"
+}
+
+case $ECHO in
+  printf*) AC_MSG_RESULT([printf]) ;;
+  print*) AC_MSG_RESULT([print -r]) ;;
+  *) AC_MSG_RESULT([cat]) ;;
+esac
+
+m4_ifdef([_AS_DETECT_SUGGESTED],
+[_AS_DETECT_SUGGESTED([
+  test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test "X`printf %s $ECHO`" = "X$ECHO" \
+      || test "X`print -r -- $ECHO`" = "X$ECHO" )])])
+
+_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
+_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes])
+])# _LT_PROG_ECHO_BACKSLASH
+
+
+# _LT_WITH_SYSROOT
+# ----------------
+AC_DEFUN([_LT_WITH_SYSROOT],
+[AC_MSG_CHECKING([for sysroot])
+AC_ARG_WITH([sysroot],
+[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
+  [Search for dependent libraries within DIR (or the compiler's sysroot
+   if not specified).])],
+[], [with_sysroot=no])
+
+dnl lt_sysroot will always be passed unquoted.  We quote it here
+dnl in case the user passed a directory name.
+lt_sysroot=
+case $with_sysroot in #(
+ yes)
+   if test yes = "$GCC"; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   AC_MSG_RESULT([$with_sysroot])
+   AC_MSG_ERROR([The sysroot must be an absolute path.])
+   ;;
+esac
+
+ AC_MSG_RESULT([${lt_sysroot:-no}])
+_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl
+[dependent libraries, and where our libraries should be installed.])])
+
+# _LT_ENABLE_LOCK
+# ---------------
+m4_defun([_LT_ENABLE_LOCK],
+[AC_ARG_ENABLE([libtool-lock],
+  [AS_HELP_STRING([--disable-libtool-lock],
+    [avoid locking (might break parallel builds)])])
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out what ABI is being produced by ac_compile, and set mode
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE=32
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE=64
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    if test yes = "$lt_cv_prog_gnu_ld"; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+mips64*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    emul=elf
+    case `/usr/bin/file conftest.$ac_objext` in
+      *32-bit*)
+	emul="${emul}32"
+	;;
+      *64-bit*)
+	emul="${emul}64"
+	;;
+    esac
+    case `/usr/bin/file conftest.$ac_objext` in
+      *MSB*)
+	emul="${emul}btsmip"
+	;;
+      *LSB*)
+	emul="${emul}ltsmip"
+	;;
+    esac
+    case `/usr/bin/file conftest.$ac_objext` in
+      *N32*)
+	emul="${emul}n32"
+	;;
+    esac
+    LD="${LD-ld} -m $emul"
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.  Note that the listed cases only cover the
+  # situations where additional linker options are needed (such as when
+  # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+  # vice versa); the common cases where no linker options are needed do
+  # not appear in the list.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    case `/usr/bin/file conftest.o` in
+	      *x86-64*)
+		LD="${LD-ld} -m elf32_x86_64"
+		;;
+	      *)
+		LD="${LD-ld} -m elf_i386"
+		;;
+	    esac
+	    ;;
+	  powerpc64le-*linux*)
+	    LD="${LD-ld} -m elf32lppclinux"
+	    ;;
+	  powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  powerpcle-*linux*)
+	    LD="${LD-ld} -m elf64lppc"
+	    ;;
+	  powerpc-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS=$CFLAGS
+  CFLAGS="$CFLAGS -belf"
+  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
+    [AC_LANG_PUSH(C)
+     AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
+     AC_LANG_POP])
+  if test yes != "$lt_cv_cc_needs_belf"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS=$SAVE_CFLAGS
+  fi
+  ;;
+*-*solaris*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*)
+        case $host in
+        i?86-*-solaris*|x86_64-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD=${LD-ld}_sol2
+        fi
+        ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks=$enable_libtool_lock
+])# _LT_ENABLE_LOCK
+
+
+# _LT_PROG_AR
+# -----------
+m4_defun([_LT_PROG_AR],
+[AC_CHECK_TOOLS(AR, [ar], false)
+: ${AR=ar}
+: ${AR_FLAGS=cr}
+_LT_DECL([], [AR], [1], [The archiver])
+_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive])
+
+AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file],
+  [lt_cv_ar_at_file=no
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
+     [echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD'
+      AC_TRY_EVAL([lt_ar_try])
+      if test 0 -eq "$ac_status"; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	AC_TRY_EVAL([lt_ar_try])
+	if test 0 -ne "$ac_status"; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+     ])
+  ])
+
+if test no = "$lt_cv_ar_at_file"; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+_LT_DECL([], [archiver_list_spec], [1],
+  [How to feed a file listing to the archiver])
+])# _LT_PROG_AR
+
+
+# _LT_CMD_OLD_ARCHIVE
+# -------------------
+m4_defun([_LT_CMD_OLD_ARCHIVE],
+[_LT_PROG_AR
+
+AC_CHECK_TOOL(STRIP, strip, :)
+test -z "$STRIP" && STRIP=:
+_LT_DECL([], [STRIP], [1], [A symbol stripping program])
+
+AC_CHECK_TOOL(RANLIB, ranlib, :)
+test -z "$RANLIB" && RANLIB=:
+_LT_DECL([], [RANLIB], [1],
+    [Commands used to install an old-style archive])
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  bitrig* | openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+_LT_DECL([], [old_postinstall_cmds], [2])
+_LT_DECL([], [old_postuninstall_cmds], [2])
+_LT_TAGDECL([], [old_archive_cmds], [2],
+    [Commands used to build an old-style archive])
+_LT_DECL([], [lock_old_archive_extraction], [0],
+    [Whether to use a lock for old archive extraction])
+])# _LT_CMD_OLD_ARCHIVE
+
+
+# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#		[OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------------------
+# Check whether the given compiler option works
+AC_DEFUN([_LT_COMPILER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$3"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       $2=yes
+     fi
+   fi
+   $RM conftest*
+])
+
+if test yes = "[$]$2"; then
+    m4_if([$5], , :, [$5])
+else
+    m4_if([$6], , :, [$6])
+fi
+])# _LT_COMPILER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
+
+
+# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#                  [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------
+# Check whether the given linker option works
+AC_DEFUN([_LT_LINKER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS $3"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&AS_MESSAGE_LOG_FD
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         $2=yes
+       fi
+     else
+       $2=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+])
+
+if test yes = "[$]$2"; then
+    m4_if([$4], , :, [$4])
+else
+    m4_if([$5], , :, [$5])
+fi
+])# _LT_LINKER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
+
+
+# LT_CMD_MAX_LEN
+#---------------
+AC_DEFUN([LT_CMD_MAX_LEN],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+# find the maximum length of command line arguments
+AC_MSG_CHECKING([the maximum length of command line arguments])
+AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
+  i=0
+  teststring=ABCD
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[	 ]]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len" && \
+       test undefined != "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test X`env echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test 17 != "$i" # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+])
+if test -n "$lt_cv_sys_max_cmd_len"; then
+  AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
+else
+  AC_MSG_RESULT(none)
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+_LT_DECL([], [max_cmd_len], [0],
+    [What is the maximum length of a command?])
+])# LT_CMD_MAX_LEN
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
+
+
+# _LT_HEADER_DLFCN
+# ----------------
+m4_defun([_LT_HEADER_DLFCN],
+[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
+])# _LT_HEADER_DLFCN
+
+
+# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
+#                      ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
+# ----------------------------------------------------------------
+m4_defun([_LT_TRY_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test yes = "$cross_compiling"; then :
+  [$4]
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+[#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include 
+#endif
+
+#include 
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}]
+_LT_EOF
+  if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then
+    (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) $1 ;;
+      x$lt_dlneed_uscore) $2 ;;
+      x$lt_dlunknown|x*) $3 ;;
+    esac
+  else :
+    # compilation failed
+    $3
+  fi
+fi
+rm -fr conftest*
+])# _LT_TRY_DLOPEN_SELF
+
+
+# LT_SYS_DLOPEN_SELF
+# ------------------
+AC_DEFUN([LT_SYS_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test yes != "$enable_dlopen"; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen=load_add_on
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen=LoadLibrary
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+    # if libdl is installed we need to link against it
+    AC_CHECK_LIB([dl], [dlopen],
+		[lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[
+    lt_cv_dlopen=dyld
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ])
+    ;;
+
+  tpf*)
+    # Don't try to run any link tests for TPF.  We know it's impossible
+    # because TPF is a cross-compiler, and we know how we open DSOs.
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=no
+    ;;
+
+  *)
+    AC_CHECK_FUNC([shl_load],
+	  [lt_cv_dlopen=shl_load],
+      [AC_CHECK_LIB([dld], [shl_load],
+	    [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld],
+	[AC_CHECK_FUNC([dlopen],
+	      [lt_cv_dlopen=dlopen],
+	  [AC_CHECK_LIB([dl], [dlopen],
+		[lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],
+	    [AC_CHECK_LIB([svld], [dlopen],
+		  [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld],
+	      [AC_CHECK_LIB([dld], [dld_link],
+		    [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld])
+	      ])
+	    ])
+	  ])
+	])
+      ])
+    ;;
+  esac
+
+  if test no = "$lt_cv_dlopen"; then
+    enable_dlopen=no
+  else
+    enable_dlopen=yes
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS=$CPPFLAGS
+    test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS=$LDFLAGS
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS=$LIBS
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    AC_CACHE_CHECK([whether a program can dlopen itself],
+	  lt_cv_dlopen_self, [dnl
+	  _LT_TRY_DLOPEN_SELF(
+	    lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
+	    lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
+    ])
+
+    if test yes = "$lt_cv_dlopen_self"; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
+	  lt_cv_dlopen_self_static, [dnl
+	  _LT_TRY_DLOPEN_SELF(
+	    lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
+	    lt_cv_dlopen_self_static=no,  lt_cv_dlopen_self_static=cross)
+      ])
+    fi
+
+    CPPFLAGS=$save_CPPFLAGS
+    LDFLAGS=$save_LDFLAGS
+    LIBS=$save_LIBS
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+_LT_DECL([dlopen_support], [enable_dlopen], [0],
+	 [Whether dlopen is supported])
+_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
+	 [Whether dlopen of programs is supported])
+_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
+	 [Whether dlopen of statically linked programs is supported])
+])# LT_SYS_DLOPEN_SELF
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
+
+
+# _LT_COMPILER_C_O([TAGNAME])
+# ---------------------------
+# Check to see if options -c and -o are simultaneously supported by compiler.
+# This macro does not hard code the compiler like AC_PROG_CC_C_O.
+m4_defun([_LT_COMPILER_C_O],
+[m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
+  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
+  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+     fi
+   fi
+   chmod u+w . 2>&AS_MESSAGE_LOG_FD
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+])
+_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
+	[Does compiler simultaneously support -c and -o options?])
+])# _LT_COMPILER_C_O
+
+
+# _LT_COMPILER_FILE_LOCKS([TAGNAME])
+# ----------------------------------
+# Check to see if we can do hard links to lock some files if needed
+m4_defun([_LT_COMPILER_FILE_LOCKS],
+[m4_require([_LT_ENABLE_LOCK])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_COMPILER_C_O([$1])
+
+hard_links=nottested
+if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then
+  # do not overwrite the value of need_locks provided by the user
+  AC_MSG_CHECKING([if we can lock with hard links])
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  AC_MSG_RESULT([$hard_links])
+  if test no = "$hard_links"; then
+    AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe])
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
+])# _LT_COMPILER_FILE_LOCKS
+
+
+# _LT_CHECK_OBJDIR
+# ----------------
+m4_defun([_LT_CHECK_OBJDIR],
+[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
+[rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null])
+objdir=$lt_cv_objdir
+_LT_DECL([], [objdir], [0],
+         [The name of the directory that contains temporary libtool files])dnl
+m4_pattern_allow([LT_OBJDIR])dnl
+AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/",
+  [Define to the sub-directory where libtool stores uninstalled libraries.])
+])# _LT_CHECK_OBJDIR
+
+
+# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
+# --------------------------------------
+# Check hardcoding attributes.
+m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
+[AC_MSG_CHECKING([how to hardcode library paths into programs])
+_LT_TAGVAR(hardcode_action, $1)=
+if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
+   test -n "$_LT_TAGVAR(runpath_var, $1)" ||
+   test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then
+
+  # We can hardcode non-existent directories.
+  if test no != "$_LT_TAGVAR(hardcode_direct, $1)" &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" &&
+     test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then
+    # Linking always hardcodes the temporary library directory.
+    _LT_TAGVAR(hardcode_action, $1)=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    _LT_TAGVAR(hardcode_action, $1)=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  _LT_TAGVAR(hardcode_action, $1)=unsupported
+fi
+AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
+
+if test relink = "$_LT_TAGVAR(hardcode_action, $1)" ||
+   test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+     test no = "$enable_shared"; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+_LT_TAGDECL([], [hardcode_action], [0],
+    [How to hardcode a shared library path into an executable])
+])# _LT_LINKER_HARDCODE_LIBPATH
+
+
+# _LT_CMD_STRIPLIB
+# ----------------
+m4_defun([_LT_CMD_STRIPLIB],
+[m4_require([_LT_DECL_EGREP])
+striplib=
+old_striplib=
+AC_MSG_CHECKING([whether stripping libraries is possible])
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  AC_MSG_RESULT([yes])
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP"; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      AC_MSG_RESULT([yes])
+    else
+      AC_MSG_RESULT([no])
+    fi
+    ;;
+  *)
+    AC_MSG_RESULT([no])
+    ;;
+  esac
+fi
+_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
+_LT_DECL([], [striplib], [1])
+])# _LT_CMD_STRIPLIB
+
+
+# _LT_PREPARE_MUNGE_PATH_LIST
+# ---------------------------
+# Make sure func_munge_path_list() is defined correctly.
+m4_defun([_LT_PREPARE_MUNGE_PATH_LIST],
+[[# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x@S|@2 in
+    x)
+        ;;
+    *:)
+        eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\"
+        ;;
+    x:*)
+        eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\"
+        ;;
+    *)
+        eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+]])# _LT_PREPARE_PATH_LIST
+
+
+# _LT_SYS_DYNAMIC_LINKER([TAG])
+# -----------------------------
+# PORTME Fill in your ld.so characteristics
+m4_defun([_LT_SYS_DYNAMIC_LINKER],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_OBJDUMP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl
+AC_MSG_CHECKING([dynamic linker characteristics])
+m4_if([$1],
+	[], [
+if test yes = "$GCC"; then
+  case $host_os in
+    darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+    *) lt_awk_arg='/^libraries:/' ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;;
+    *) lt_sed_strip_eq='s|=/|/|g' ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary...
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  # ...but if some path component already ends with the multilib dir we assume
+  # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+  case "$lt_multi_os_dir; $lt_search_path_spec " in
+  "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+    lt_multi_os_dir=
+    ;;
+  esac
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+    elif test -n "$lt_multi_os_dir"; then
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS = " "; FS = "/|\n";} {
+  lt_foo = "";
+  lt_count = 0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo = "/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[[lt_foo]]++; }
+  if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi])
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+AC_ARG_VAR([LT_SYS_LIBRARY_PATH],
+[User-defined run-time library search path.])
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='$libname$release$shared_ext$major'
+  ;;
+
+aix[[4-9]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test ia64 = "$host_cpu"; then
+    # AIX 5 supports IA64
+    library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line '#! .'.  This would cause the generated library to
+    # depend on '.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[[01]] | aix4.[[01]].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # Using Import Files as archive members, it is possible to support
+    # filename-based versioning of shared library archives on AIX. While
+    # this would work for both with and without runtime linking, it will
+    # prevent static linking of such archives. So we do filename-based
+    # shared library versioning with .so extension only, which is used
+    # when both runtime linking and shared linking is enabled.
+    # Unfortunately, runtime linking may impact performance, so we do
+    # not want this to be the default eventually. Also, we use the
+    # versioned .so libs for executables only if there is the -brtl
+    # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+    # To allow for filename-based versioning support, we need to create
+    # libNAME.so.V as an archive file, containing:
+    # *) an Import File, referring to the versioned filename of the
+    #    archive as well as the shared archive member, telling the
+    #    bitwidth (32 or 64) of that shared object, and providing the
+    #    list of exported symbols of that shared object, eventually
+    #    decorated with the 'weak' keyword
+    # *) the shared object with the F_LOADONLY flag set, to really avoid
+    #    it being seen by the linker.
+    # At run time we better use the real file rather than another symlink,
+    # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+    case $with_aix_soname,$aix_use_runtimelinking in
+    # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    aix,yes) # traditional libtool
+      dynamic_linker='AIX unversionable lib.so'
+      # If using run time linking (on AIX 4.2 or later) use lib.so
+      # instead of lib.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      ;;
+    aix,no) # traditional AIX only
+      dynamic_linker='AIX lib.a[(]lib.so.V[)]'
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      ;;
+    svr4,*) # full svr4 only
+      dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,yes) # both, prefer svr4
+      dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # unpreferred sharedlib libNAME.a needs extra handling
+      postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+      postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,no) # both, prefer aix
+      dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]"
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+      postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+      postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+      ;;
+    esac
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='$libname$shared_ext'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[[45]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+m4_if([$1], [],[
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+    library_names_spec='$libname.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec=$LIB
+      if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$major$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+m4_if([$1], [],[
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[[23]].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      soname_spec='$libname$release$shared_ext$major'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[[01]]* | freebsdelf3.[[01]]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
+  freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    if test 32 = "$HPUX_IA64_MODE"; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+    fi
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[[3-9]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test yes = "$lt_cv_prog_gnu_ld"; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+  sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+linux*android*)
+  version_type=none # Android doesn't support versioned libraries.
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext'
+  soname_spec='$libname$release$shared_ext'
+  finish_cmds=
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  dynamic_linker='Android linker'
+  # Don't embed -rpath directories since the linker doesn't support them.
+  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
+    [lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
+	 LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+      [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
+	 [lt_cv_shlibpath_overrides_runpath=yes])])
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+    ])
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Ideally, we could use ldconfig to report *all* directores which are
+  # searched for libraries, however this is still not possible.  Aside from not
+  # being certain /sbin/ldconfig is available, command
+  # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+  # even though it is searched at run-time.  Try to do the best guess by
+  # appending ld.so.conf contents (and includes) to the search path.
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsdelf*-gnu)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='NetBSD ld.elf_so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd* | bitrig*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec=/usr/lib
+  need_lib_prefix=no
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    need_version=no
+  else
+    need_version=yes
+  fi
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+os2*)
+  libname_spec='$name'
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+  # OS/2 can only load a DLL with a base name of 8 characters or less.
+  soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+    v=$($ECHO $release$versuffix | tr -d .-);
+    n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+    $ECHO $n$v`$shared_ext'
+  library_names_spec='${libname}_dll.$libext'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=BEGINLIBPATH
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  postinstall_cmds='base_file=`basename \$file`~
+    dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+    dldir=$destdir/`dirname \$dlpath`~
+    test -d \$dldir || mkdir -p \$dldir~
+    $install_prog $dir/$dlname \$dldir/$dlname~
+    chmod a+x \$dldir/$dlname~
+    if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+      eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+    fi'
+  postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+    dlpath=$dir/\$dldll~
+    $RM \$dlpath'
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test yes = "$with_gnu_ld"; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec; then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+    soname_spec='$libname$shared_ext.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=sco
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test yes = "$with_gnu_ld"; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+AC_MSG_RESULT([$dynamic_linker])
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+  sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+  sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+_LT_DECL([], [variables_saved_for_relink], [1],
+    [Variables whose values should be saved in libtool wrapper scripts and
+    restored at link time])
+_LT_DECL([], [need_lib_prefix], [0],
+    [Do we need the "lib" prefix for modules?])
+_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
+_LT_DECL([], [version_type], [0], [Library versioning type])
+_LT_DECL([], [runpath_var], [0],  [Shared library runtime path variable])
+_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
+_LT_DECL([], [shlibpath_overrides_runpath], [0],
+    [Is shlibpath searched before the hard-coded library search path?])
+_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
+_LT_DECL([], [library_names_spec], [1],
+    [[List of archive names.  First name is the real one, the rest are links.
+    The last name is the one that the linker finds with -lNAME]])
+_LT_DECL([], [soname_spec], [1],
+    [[The coded name of the library, if different from the real name]])
+_LT_DECL([], [install_override_mode], [1],
+    [Permission mode override for installation of shared libraries])
+_LT_DECL([], [postinstall_cmds], [2],
+    [Command to use after installation of a shared archive])
+_LT_DECL([], [postuninstall_cmds], [2],
+    [Command to use after uninstallation of a shared archive])
+_LT_DECL([], [finish_cmds], [2],
+    [Commands used to finish a libtool library installation in a directory])
+_LT_DECL([], [finish_eval], [1],
+    [[As "finish_cmds", except a single script fragment to be evaled but
+    not shown]])
+_LT_DECL([], [hardcode_into_libs], [0],
+    [Whether we should hardcode library paths into libraries])
+_LT_DECL([], [sys_lib_search_path_spec], [2],
+    [Compile-time system search path for libraries])
+_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2],
+    [Detected run-time system search path for libraries])
+_LT_DECL([], [configure_time_lt_sys_library_path], [2],
+    [Explicit LT_SYS_LIBRARY_PATH set during ./configure time])
+])# _LT_SYS_DYNAMIC_LINKER
+
+
+# _LT_PATH_TOOL_PREFIX(TOOL)
+# --------------------------
+# find a file program that can recognize shared library
+AC_DEFUN([_LT_PATH_TOOL_PREFIX],
+[m4_require([_LT_DECL_EGREP])dnl
+AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
+[case $MAGIC_CMD in
+[[\\/*] |  ?:[\\/]*])
+  lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD=$MAGIC_CMD
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+dnl $ac_dummy forces splitting on constant user-supplied paths.
+dnl POSIX.2 word splitting is done only on the output of word expansions,
+dnl not every word.  This closes a longstanding sh security hole.
+  ac_dummy="m4_if([$2], , $PATH, [$2])"
+  for ac_dir in $ac_dummy; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$1"; then
+      lt_cv_path_MAGIC_CMD=$ac_dir/"$1"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS=$lt_save_ifs
+  MAGIC_CMD=$lt_save_MAGIC_CMD
+  ;;
+esac])
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+  AC_MSG_RESULT($MAGIC_CMD)
+else
+  AC_MSG_RESULT(no)
+fi
+_LT_DECL([], [MAGIC_CMD], [0],
+	 [Used to examine libraries when file_magic_cmd begins with "file"])dnl
+])# _LT_PATH_TOOL_PREFIX
+
+# Old name:
+AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
+
+
+# _LT_PATH_MAGIC
+# --------------
+# find a file program that can recognize a shared library
+m4_defun([_LT_PATH_MAGIC],
+[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
+  else
+    MAGIC_CMD=:
+  fi
+fi
+])# _LT_PATH_MAGIC
+
+
+# LT_PATH_LD
+# ----------
+# find the pathname to the GNU or non-GNU linker
+AC_DEFUN([LT_PATH_LD],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PROG_ECHO_BACKSLASH])dnl
+
+AC_ARG_WITH([gnu-ld],
+    [AS_HELP_STRING([--with-gnu-ld],
+	[assume the C compiler uses GNU ld @<:@default=no@:>@])],
+    [test no = "$withval" || with_gnu_ld=yes],
+    [with_gnu_ld=no])dnl
+
+ac_prog=ld
+if test yes = "$GCC"; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  AC_MSG_CHECKING([for ld used by $CC])
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return, which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [[\\/]]* | ?:[[\\/]]*)
+      re_direlt='/[[^/]][[^/]]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD=$ac_prog
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test yes = "$with_gnu_ld"; then
+  AC_MSG_CHECKING([for GNU ld])
+else
+  AC_MSG_CHECKING([for non-GNU ld])
+fi
+AC_CACHE_VAL(lt_cv_path_LD,
+[if test -z "$LD"; then
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD=$ac_dir/$ac_prog
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 &1 conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd],
+[if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi])
+rm -f conftest.i conftest2.i conftest.out])
+])# _LT_PATH_DD
+
+
+# _LT_CMD_TRUNCATE
+# ----------------
+# find command to truncate a binary pipe
+m4_defun([_LT_CMD_TRUNCATE],
+[m4_require([_LT_PATH_DD])
+AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin],
+[printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"])
+_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1],
+  [Command to truncate a binary pipe])
+])# _LT_CMD_TRUNCATE
+
+
+# _LT_CHECK_MAGIC_METHOD
+# ----------------------
+# how to check for library dependencies
+#  -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_MAGIC_METHOD],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+AC_CACHE_CHECK([how to recognize dependent libraries],
+lt_cv_deplibs_check_method,
+[lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# 'unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[[4-9]]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[[45]]*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  if ( file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]']
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[[3-9]]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd* | netbsdelf*-gnu)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd* | bitrig*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+os2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+])
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+_LT_DECL([], [deplibs_check_method], [1],
+    [Method to check whether dependent libraries are shared objects])
+_LT_DECL([], [file_magic_cmd], [1],
+    [Command to use when deplibs_check_method = "file_magic"])
+_LT_DECL([], [file_magic_glob], [1],
+    [How to find potential files when deplibs_check_method = "file_magic"])
+_LT_DECL([], [want_nocaseglob], [1],
+    [Find potential files using nocaseglob when deplibs_check_method = "file_magic"])
+])# _LT_CHECK_MAGIC_METHOD
+
+
+# LT_PATH_NM
+# ----------
+# find the pathname to a BSD- or MS-compatible name lister
+AC_DEFUN([LT_PATH_NM],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
+[if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM=$NM
+else
+  lt_nm_to_check=${ac_tool_prefix}nm
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS=$lt_save_ifs
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm=$ac_dir/$lt_tmp_nm
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the 'sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	# MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+	case $build_os in
+	mingw*) lt_bad_file=conftest.nm/nofile ;;
+	*) lt_bad_file=/dev/null ;;
+	esac
+	case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+	*$lt_bad_file* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break 2
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break 2
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS=$lt_save_ifs
+  done
+  : ${lt_cv_path_NM=no}
+fi])
+if test no != "$lt_cv_path_NM"; then
+  NM=$lt_cv_path_NM
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :)
+    case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols -headers"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+  AC_SUBST([DUMPBIN])
+  if test : != "$DUMPBIN"; then
+    NM=$DUMPBIN
+  fi
+fi
+test -z "$NM" && NM=nm
+AC_SUBST([NM])
+_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
+
+AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
+  [lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD)
+  cat conftest.out >&AS_MESSAGE_LOG_FD
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*])
+])# LT_PATH_NM
+
+# Old names:
+AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
+AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_NM], [])
+dnl AC_DEFUN([AC_PROG_NM], [])
+
+# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+# --------------------------------
+# how to determine the name of the shared library
+# associated with a specific link library.
+#  -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+m4_require([_LT_DECL_DLLTOOL])
+AC_CACHE_CHECK([how to associate runtime and link libraries],
+lt_cv_sharedlib_from_linklib_cmd,
+[lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh;
+  # decide which one to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd=$ECHO
+  ;;
+esac
+])
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+_LT_DECL([], [sharedlib_from_linklib_cmd], [1],
+    [Command to associate shared and link libraries])
+])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+
+
+# _LT_PATH_MANIFEST_TOOL
+# ----------------------
+# locate the manifest tool
+m4_defun([_LT_PATH_MANIFEST_TOOL],
+[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :)
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool],
+  [lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*])
+if test yes != "$lt_cv_path_mainfest_tool"; then
+  MANIFEST_TOOL=:
+fi
+_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl
+])# _LT_PATH_MANIFEST_TOOL
+
+
+# _LT_DLL_DEF_P([FILE])
+# ---------------------
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with func_dll_def_p in the libtool script
+AC_DEFUN([_LT_DLL_DEF_P],
+[dnl
+  test DEF = "`$SED -n dnl
+    -e '\''s/^[[	 ]]*//'\'' dnl Strip leading whitespace
+    -e '\''/^\(;.*\)*$/d'\'' dnl      Delete empty lines and comments
+    -e '\''s/^\(EXPORTS\|LIBRARY\)\([[	 ]].*\)*$/DEF/p'\'' dnl
+    -e q dnl                          Only consider the first "real" line
+    $1`" dnl
+])# _LT_DLL_DEF_P
+
+
+# LT_LIB_M
+# --------
+# check for math library
+AC_DEFUN([LT_LIB_M],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+LIBM=
+case $host in
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+  # These system don't have libm, or don't need it
+  ;;
+*-ncr-sysv4.3*)
+  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw)
+  AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
+  ;;
+*)
+  AC_CHECK_LIB(m, cos, LIBM=-lm)
+  ;;
+esac
+AC_SUBST([LIBM])
+])# LT_LIB_M
+
+# Old name:
+AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_CHECK_LIBM], [])
+
+
+# _LT_COMPILER_NO_RTTI([TAGNAME])
+# -------------------------------
+m4_defun([_LT_COMPILER_NO_RTTI],
+[m4_require([_LT_TAG_COMPILER])dnl
+
+_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+
+if test yes = "$GCC"; then
+  case $cc_basename in
+  nvcc*)
+    _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;;
+  *)
+    _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;;
+  esac
+
+  _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
+    lt_cv_prog_compiler_rtti_exceptions,
+    [-fno-rtti -fno-exceptions], [],
+    [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
+fi
+_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
+	[Compiler flag to turn off builtin functions])
+])# _LT_COMPILER_NO_RTTI
+
+
+# _LT_CMD_GLOBAL_SYMBOLS
+# ----------------------
+m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+AC_MSG_CHECKING([command to parse $NM output from $compiler object])
+AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
+[
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[[BCDEGRST]]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[[BCDT]]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[[ABCDGISTW]]'
+  ;;
+hpux*)
+  if test ia64 = "$host_cpu"; then
+    symcode='[[ABCDEGRST]]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[[BCDEGRST]]'
+  ;;
+osf*)
+  symcode='[[BCDEGQRST]]'
+  ;;
+solaris*)
+  symcode='[[BDRT]]'
+  ;;
+sco3.2v5*)
+  symcode='[[DT]]'
+  ;;
+sysv4.2uw2*)
+  symcode='[[DT]]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[[ABDT]]'
+  ;;
+sysv4)
+  symcode='[[DFNSTU]]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[[ABCDGIRSTW]]' ;;
+esac
+
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  # Gets list of data symbols to import.
+  lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
+  # Adjust the below global symbol transforms to fixup imported variables.
+  lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+  lt_c_name_hook=" -e 's/^I .* \(.*\)$/  {\"\1\", (void *) 0},/p'"
+  lt_c_name_lib_hook="\
+  -e 's/^I .* \(lib.*\)$/  {\"\1\", (void *) 0},/p'\
+  -e 's/^I .* \(.*\)$/  {\"lib\1\", (void *) 0},/p'"
+else
+  # Disable hooks by default.
+  lt_cv_sys_global_symbol_to_import=
+  lt_cdecl_hook=
+  lt_c_name_hook=
+  lt_c_name_lib_hook=
+fi
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/  {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"lib\1\", (void *) \&\1},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function,
+    # D for any global variable and I for any imported variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK ['"\
+"     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+"     /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+"     /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+"     {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+"     s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx]"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[	 ]]\($symcode$symcode*\)[[	 ]][[	 ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if AC_TRY_EVAL(ac_compile); then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    $ECHO "$as_me:$LINENO: $NM conftest.$ac_objext | $lt_cv_sys_global_symbol_pipe > $nlist" >&AS_MESSAGE_LOG_FD
+    if eval "$NM" conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist 2>&AS_MESSAGE_LOG_FD && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT@&t@_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data.  */
+# define LT@&t@_DLSYM_CONST
+#else
+# define LT@&t@_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT@&t@_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[[]] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS=conftstm.$ac_objext
+	  CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
+	  if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
+    fi
+  else
+    echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test yes = "$pipe_works"; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+])
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  AC_MSG_RESULT(failed)
+else
+  AC_MSG_RESULT(ok)
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
+    [Take the output of nm and produce a listing of raw symbols and C names])
+_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
+    [Transform the output of nm in a proper C declaration])
+_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1],
+    [Transform the output of nm into a list of symbols to manually relocate])
+_LT_DECL([global_symbol_to_c_name_address],
+    [lt_cv_sys_global_symbol_to_c_name_address], [1],
+    [Transform the output of nm in a C name address pair])
+_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
+    [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
+    [Transform the output of nm in a C name address pair when lib prefix is needed])
+_LT_DECL([nm_interface], [lt_cv_nm_interface], [1],
+    [The name lister interface])
+_LT_DECL([], [nm_file_list_spec], [1],
+    [Specify filename containing input files for $NM])
+]) # _LT_CMD_GLOBAL_SYMBOLS
+
+
+# _LT_COMPILER_PIC([TAGNAME])
+# ---------------------------
+m4_defun([_LT_COMPILER_PIC],
+[m4_require([_LT_TAG_COMPILER])dnl
+_LT_TAGVAR(lt_prog_compiler_wl, $1)=
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+_LT_TAGVAR(lt_prog_compiler_static, $1)=
+
+m4_if([$1], [CXX], [
+  # C++ specific cases for pic, static, wl, etc.
+  if test yes = "$GXX"; then
+    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      case $host_os in
+      os2*)
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+	;;
+      esac
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)=
+      ;;
+    interix[[3-9]]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+    *)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[[4-9]]*)
+	# All AIX code is PIC.
+	if test ia64 = "$host_cpu"; then
+	  # AIX 5 now supports IA64 processor
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	else
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      mingw* | cygwin* | os2* | pw32* | cegcc*)
+	# This hack is so that the source file can tell whether it is being
+	# built for inclusion in a dll (and should export symbols for example).
+	m4_if([$1], [GCJ], [],
+	  [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+	    if test ia64 != "$host_cpu"; then
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64, which still supported -KPIC.
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd* | netbsdelf*-gnu)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+	;;
+    esac
+  fi
+],
+[
+  if test yes = "$GCC"; then
+    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      case $host_os in
+      os2*)
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[[3-9]]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker '
+      if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)"
+      fi
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      else
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      case $cc_basename in
+      nagfor*)
+        # NAG Fortran compiler
+        _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+        _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+        ;;
+      esac
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      case $host_os in
+      os2*)
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+	;;
+      esac
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC (with -KPIC) is the default.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+      case $cc_basename in
+      # old Intel for x86_64, which still supported -KPIC.
+      ecc*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # flang / f18. f95 an alias for gfortran or flang on Debian
+      flang* | f18* | f95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	;;
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+        ;;
+      ccc*)
+        _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+        # All Alpha code is PIC.
+        _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
+	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  ;;
+        *Intel*\ [[CF]]*Compiler*)
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	  ;;
+	*Portland\ Group*)
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # All OSF/1 code is PIC.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    rdos*)
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    solaris*)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    unicos*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+
+    uts4*)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *)
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+    esac
+  fi
+])
+case $host_os in
+  # For platforms that do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+    ;;
+  *)
+    _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
+    ;;
+esac
+
+AC_CACHE_CHECK([for $compiler option to produce PIC],
+  [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)],
+  [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+  _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
+    [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
+    [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
+    [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
+     "" | " "*) ;;
+     *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
+     esac],
+    [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+     _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
+fi
+_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
+	[Additional compiler flags for building library objects])
+
+_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
+	[How to pass a linker flag through the compiler])
+#
+# Check to make sure the static flag actually works.
+#
+wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
+_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
+  _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
+  $lt_tmp_static_flag,
+  [],
+  [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
+_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
+	[Compiler flag to prevent dynamic linking])
+])# _LT_COMPILER_PIC
+
+
+# _LT_LINKER_SHLIBS([TAGNAME])
+# ----------------------------
+# See if the linker supports building shared libraries.
+m4_defun([_LT_LINKER_SHLIBS],
+[AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+m4_if([$1], [CXX], [
+  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+  case $host_os in
+  aix[[4-9]]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+    # Without the "-l" option, or with the "-B" option, AIX nm treats
+    # weak defined symbols like other global defined symbols, whereas
+    # GNU nm marks them as "W".
+    # While the 'weak' keyword is ignored in the Export File, we need
+    # it in the Import File for the 'aix-soname' feature, so we have
+    # to replace the "-B" option with "-P" for AIX nm.
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+    else
+      _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    _LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds
+    ;;
+  cygwin* | mingw* | cegcc*)
+    case $cc_basename in
+    cl*)
+      _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+      ;;
+    *)
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+      _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+      ;;
+    esac
+    ;;
+  linux* | k*bsd*-gnu | gnu*)
+    _LT_TAGVAR(link_all_deplibs, $1)=no
+    ;;
+  *)
+    _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+    ;;
+  esac
+], [
+  runpath_var=
+  _LT_TAGVAR(allow_undefined_flag, $1)=
+  _LT_TAGVAR(always_export_symbols, $1)=no
+  _LT_TAGVAR(archive_cmds, $1)=
+  _LT_TAGVAR(archive_expsym_cmds, $1)=
+  _LT_TAGVAR(compiler_needs_object, $1)=no
+  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+  _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  _LT_TAGVAR(hardcode_automatic, $1)=no
+  _LT_TAGVAR(hardcode_direct, $1)=no
+  _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+  _LT_TAGVAR(hardcode_libdir_separator, $1)=
+  _LT_TAGVAR(hardcode_minus_L, $1)=no
+  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  _LT_TAGVAR(inherit_rpath, $1)=no
+  _LT_TAGVAR(link_all_deplibs, $1)=unknown
+  _LT_TAGVAR(module_cmds, $1)=
+  _LT_TAGVAR(module_expsym_cmds, $1)=
+  _LT_TAGVAR(old_archive_from_new_cmds, $1)=
+  _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
+  _LT_TAGVAR(thread_safe_flag_spec, $1)=
+  _LT_TAGVAR(whole_archive_flag_spec, $1)=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  _LT_TAGVAR(include_expsyms, $1)=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ' (' and ')$', so one must not match beginning or
+  # end of line.  Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+  # as well as any symbol that contains 'd'.
+  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+dnl Note also adjust exclude_expsyms for C++ above.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test yes != "$GCC"; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd* | bitrig*)
+    with_gnu_ld=no
+    ;;
+  linux* | k*bsd*-gnu | gnu*)
+    _LT_TAGVAR(link_all_deplibs, $1)=no
+    ;;
+  esac
+
+  _LT_TAGVAR(ld_shlibs, $1)=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test yes = "$with_gnu_ld"; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;;
+	  *\ \(GNU\ Binutils\)\ [[3-9]]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test yes = "$lt_use_gnu_ld_interface"; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='$wl'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+    else
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v | $SED -e 's/([^)]\+)\s\+//' 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[[3-9]]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test ia64 != "$host_cpu"; then
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            _LT_TAGVAR(archive_expsym_cmds, $1)=''
+        ;;
+      m68k)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	# Joseph Beckenbach  says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	_LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+      # as there is no search path for DLLs.
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(always_export_symbols, $1)=no
+      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+      _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file, use it as
+	# is; otherwise, prepend EXPORTS...
+	_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+          cp $export_symbols $output_objdir/$soname.def;
+        else
+          echo EXPORTS > $output_objdir/$soname.def;
+          cat $export_symbols >> $output_objdir/$soname.def;
+        fi~
+        $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    haiku*)
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    os2*)
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      shrext_cmds=.dll
+      _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      ;;
+
+    interix[[3-9]]*)
+      _LT_TAGVAR(hardcode_direct, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test linux-dietlibc = "$host_os"; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test no = "$tmp_diet"
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)=
+	  tmp_sharedflag='--shared' ;;
+        nagfor*)                        # NAGFOR 5.3
+          tmp_sharedflag='-Wl,-shared' ;;
+	xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  _LT_TAGVAR(compiler_needs_object, $1)=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  _LT_TAGVAR(compiler_needs_object, $1)=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	_LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+
+        if test yes = "$supports_anon_versioning"; then
+          _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+            cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+            echo "local: *; };" >> $output_objdir/$libname.ver~
+            $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	tcc*)
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic'
+	  ;;
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test yes = "$supports_anon_versioning"; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+              cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+              echo "local: *; };" >> $output_objdir/$libname.ver~
+              $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        _LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    netbsd* | netbsdelf*-gnu)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+    esac
+
+    if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then
+      runpath_var=
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(always_export_symbols, $1)=yes
+      _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	_LT_TAGVAR(hardcode_direct, $1)=unsupported
+      fi
+      ;;
+
+    aix[[4-9]]*)
+      if test ia64 = "$host_cpu"; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to GNU nm, but means don't demangle to AIX nm.
+	# Without the "-l" option, or with the "-B" option, AIX nm treats
+	# weak defined symbols like other global defined symbols, whereas
+	# GNU nm marks them as "W".
+	# While the 'weak' keyword is ignored in the Export File, we need
+	# it in the Import File for the 'aix-soname' feature, so we have
+	# to replace the "-B" option with "-P" for AIX nm.
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+	else
+	  _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# have runtime linking enabled, and use it for executables.
+	# For shared libraries, we enable/disable runtime linking
+	# depending on the kind of the shared library created -
+	# when "with_aix_soname,aix_use_runtimelinking" is:
+	# "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "aix,yes"  lib.so          shared, rtl:yes, for executables
+	#            lib.a           static archive
+	# "both,no"  lib.so.V(shr.o) shared, rtl:yes
+	#            lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a(lib.so.V) shared, rtl:no
+	# "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a           static archive
+	case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	    # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	    # so we don't have lib.a shared libs to link our executables.
+	    # We have to force runtime linking in this case.
+	    aix_use_runtimelinking=yes
+	    LDFLAGS="$LDFLAGS -Wl,-brtl"
+	  fi
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      _LT_TAGVAR(archive_cmds, $1)=''
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
+      case $with_aix_soname,$aix_use_runtimelinking in
+      aix,*) ;; # traditional, no import file
+      svr4,* | *,yes) # use import file
+	# The Import File defines what to hardcode.
+	_LT_TAGVAR(hardcode_direct, $1)=no
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+	;;
+      esac
+
+      if test yes = "$GCC"; then
+	case $host_os in aix4.[[012]]|aix4.[[012]].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  _LT_TAGVAR(hardcode_direct, $1)=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	  _LT_TAGVAR(hardcode_libdir_separator, $1)=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test yes = "$aix_use_runtimelinking"; then
+	  shared_flag="$shared_flag "'$wl-G'
+	fi
+	# Need to ensure runtime linking is disabled for the traditional
+	# shared library, or the linker may eventually find shared libraries
+	# /with/ Import File - we do not want to mix them.
+	shared_flag_aix='-shared'
+	shared_flag_svr4='-shared $wl-G'
+      else
+	# not using gcc
+	if test ia64 = "$host_cpu"; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag='$wl-G'
+	  else
+	    shared_flag='$wl-bM:SRE'
+	  fi
+	  shared_flag_aix='$wl-bM:SRE'
+	  shared_flag_svr4='$wl-G'
+	fi
+      fi
+
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      _LT_TAGVAR(always_export_symbols, $1)=yes
+      if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	_LT_TAGVAR(allow_undefined_flag, $1)='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        _LT_SYS_MODULE_PATH_AIX([$1])
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+      else
+	if test ia64 = "$host_cpu"; then
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
+	  _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+	  _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 _LT_SYS_MODULE_PATH_AIX([$1])
+	 _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
+	  _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
+	  if test yes = "$with_gnu_ld"; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+	  fi
+	  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	  # -brtl affects multiple linker settings, -berok does not and is overridden later
+	  compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
+	  if test svr4 != "$with_aix_soname"; then
+	    # This is similar to how AIX traditionally builds its shared libraries.
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	  fi
+	  if test aix != "$with_aix_soname"; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	  else
+	    # used by -dlpreopen to get the symbols
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	  fi
+	  _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            _LT_TAGVAR(archive_expsym_cmds, $1)=''
+        ;;
+      m68k)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[[45]]*)
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl*)
+	# Native MSVC
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	_LT_TAGVAR(always_export_symbols, $1)=yes
+	_LT_TAGVAR(file_list_spec, $1)='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+            cp "$export_symbols" "$output_objdir/$soname.def";
+            echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+          else
+            $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+          fi~
+          $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+          linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	_LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+	_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+	_LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+          lt_tool_outputfile="@TOOL_OUTPUT@"~
+          case $lt_outputfile in
+            *.exe|*.EXE) ;;
+            *)
+              lt_outputfile=$lt_outputfile.exe
+              lt_tool_outputfile=$lt_tool_outputfile.exe
+              ;;
+          esac~
+          if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+            $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+            $RM "$lt_outputfile.manifest";
+          fi'
+	;;
+      *)
+	# Assume MSVC wrapper
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	_LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	# FIXME: Should let the user specify the lib program.
+	_LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      _LT_DARWIN_LINKER_FEATURES($1)
+      ;;
+
+    dgux*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2.*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    hpux9*)
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+      ;;
+
+    hpux10*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test no = "$with_gnu_ld"; then
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
+	_LT_TAGVAR(hardcode_direct, $1)=yes
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	_LT_TAGVAR(hardcode_minus_L, $1)=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	case $host_cpu in
+	hppa*64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	m4_if($1, [], [
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  _LT_LINKER_OPTION([if $CC understands -b],
+	    _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b],
+	    [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
+	    [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])],
+	  [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
+	  ;;
+	esac
+      fi
+      if test no = "$with_gnu_ld"; then
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  _LT_TAGVAR(hardcode_direct, $1)=no
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	  ;;
+	*)
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol],
+	  [lt_cv_irix_exported_symbol],
+	  [save_LDFLAGS=$LDFLAGS
+	   LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
+	   AC_LINK_IFELSE(
+	     [AC_LANG_SOURCE(
+	        [AC_LANG_CASE([C], [[int foo (void) { return 0; }]],
+			      [C++], [[int foo (void) { return 0; }]],
+			      [Fortran 77], [[
+      subroutine foo
+      end]],
+			      [Fortran], [[
+      subroutine foo
+      end]])])],
+	      [lt_cv_irix_exported_symbol=yes],
+	      [lt_cv_irix_exported_symbol=no])
+           LDFLAGS=$save_LDFLAGS])
+	if test yes = "$lt_cv_irix_exported_symbol"; then
+          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
+	fi
+	_LT_TAGVAR(link_all_deplibs, $1)=no
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(inherit_rpath, $1)=yes
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    linux*)
+      case $cc_basename in
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	_LT_TAGVAR(ld_shlibs, $1)=yes
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	;;
+      esac
+      ;;
+
+    netbsd* | netbsdelf*-gnu)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    newsos6)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd* | bitrig*)
+      if test -f /usr/libexec/ld.so; then
+	_LT_TAGVAR(hardcode_direct, $1)=yes
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+	else
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	fi
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    os2*)
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      shrext_cmds=.dll
+      _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      ;;
+
+    osf3*)
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+      else
+	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+      else
+	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+          $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    solaris*)
+      _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
+      if test yes = "$GCC"; then
+	wlarc='$wl'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+          $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='$wl'
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      case $host_os in
+      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands '-z linker_flag'.  GCC discards it without '$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test yes = "$GCC"; then
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+	else
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    sunos4*)
+      if test sequent = "$host_vendor"; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
+	  _LT_TAGVAR(hardcode_direct, $1)=no
+        ;;
+	motorola)
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4.3*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	_LT_TAGVAR(ld_shlibs, $1)=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+      _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We CANNOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+      _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      _LT_TAGVAR(ld_shlibs, $1)=no
+      ;;
+    esac
+
+    if test sni = "$host_vendor"; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+])
+AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
+
+_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
+
+_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
+_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
+_LT_DECL([], [extract_expsyms_cmds], [2],
+    [The commands to extract the exported symbol list from a shared archive])
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
+x|xyes)
+  # Assume -lc should be added
+  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+
+  if test yes,yes = "$GCC,$enable_shared"; then
+    case $_LT_TAGVAR(archive_cmds, $1) in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      AC_CACHE_CHECK([whether -lc should be explicitly linked in],
+	[lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1),
+	[$RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
+	  pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
+	  _LT_TAGVAR(allow_undefined_flag, $1)=
+	  if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
+	  then
+	    lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	  else
+	    lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	  fi
+	  _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+	])
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
+    [Whether or not to add -lc for building shared libraries])
+_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
+    [enable_shared_with_static_runtimes], [0],
+    [Whether or not to disallow shared libs when runtime libs are static])
+_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
+    [Compiler flag to allow reflexive dlopens])
+_LT_TAGDECL([], [whole_archive_flag_spec], [1],
+    [Compiler flag to generate shared objects directly from archives])
+_LT_TAGDECL([], [compiler_needs_object], [1],
+    [Whether the compiler copes with passing no objects directly])
+_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
+    [Create an old-style archive from a shared archive])
+_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
+    [Create a temporary old-style archive to link instead of a shared archive])
+_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
+_LT_TAGDECL([], [archive_expsym_cmds], [2])
+_LT_TAGDECL([], [module_cmds], [2],
+    [Commands used to build a loadable module if different from building
+    a shared archive.])
+_LT_TAGDECL([], [module_expsym_cmds], [2])
+_LT_TAGDECL([], [with_gnu_ld], [1],
+    [Whether we are building with GNU ld or not])
+_LT_TAGDECL([], [allow_undefined_flag], [1],
+    [Flag that allows shared libraries with undefined symbols to be built])
+_LT_TAGDECL([], [no_undefined_flag], [1],
+    [Flag that enforces no undefined symbols])
+_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
+    [Flag to hardcode $libdir into a binary during linking.
+    This must work even if $libdir does not exist])
+_LT_TAGDECL([], [hardcode_libdir_separator], [1],
+    [Whether we need a single "-rpath" flag with a separated argument])
+_LT_TAGDECL([], [hardcode_direct], [0],
+    [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+    DIR into the resulting binary])
+_LT_TAGDECL([], [hardcode_direct_absolute], [0],
+    [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+    DIR into the resulting binary and the resulting library dependency is
+    "absolute", i.e impossible to change by setting $shlibpath_var if the
+    library is relocated])
+_LT_TAGDECL([], [hardcode_minus_L], [0],
+    [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+    into the resulting binary])
+_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
+    [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+    into the resulting binary])
+_LT_TAGDECL([], [hardcode_automatic], [0],
+    [Set to "yes" if building a shared library automatically hardcodes DIR
+    into the library and all subsequent libraries and executables linked
+    against it])
+_LT_TAGDECL([], [inherit_rpath], [0],
+    [Set to yes if linker adds runtime paths of dependent libraries
+    to runtime path list])
+_LT_TAGDECL([], [link_all_deplibs], [0],
+    [Whether libtool must link a program against all its dependency libraries])
+_LT_TAGDECL([], [always_export_symbols], [0],
+    [Set to "yes" if exported symbols are required])
+_LT_TAGDECL([], [export_symbols_cmds], [2],
+    [The commands to list exported symbols])
+_LT_TAGDECL([], [exclude_expsyms], [1],
+    [Symbols that should not be listed in the preloaded symbols])
+_LT_TAGDECL([], [include_expsyms], [1],
+    [Symbols that must always be exported])
+_LT_TAGDECL([], [prelink_cmds], [2],
+    [Commands necessary for linking programs (against libraries) with templates])
+_LT_TAGDECL([], [postlink_cmds], [2],
+    [Commands necessary for finishing linking programs])
+_LT_TAGDECL([], [file_list_spec], [1],
+    [Specify filename containing input files])
+dnl FIXME: Not yet implemented
+dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
+dnl    [Compiler flag to generate thread safe objects])
+])# _LT_LINKER_SHLIBS
+
+
+# _LT_LANG_C_CONFIG([TAG])
+# ------------------------
+# Ensure that the configuration variables for a C compiler are suitably
+# defined.  These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_C_CONFIG],
+[m4_require([_LT_DECL_EGREP])dnl
+lt_save_CC=$CC
+AC_LANG_PUSH(C)
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+_LT_TAG_COMPILER
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_SYS_DYNAMIC_LINKER($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+  LT_SYS_DLOPEN_SELF
+  _LT_CMD_STRIPLIB
+
+  # Report what library types will actually be built
+  AC_MSG_CHECKING([if libtool supports shared libraries])
+  AC_MSG_RESULT([$can_build_shared])
+
+  AC_MSG_CHECKING([whether to build shared libraries])
+  test no = "$can_build_shared" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test yes = "$enable_shared" && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[[4-9]]*)
+    if test ia64 != "$host_cpu"; then
+      case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+      yes,aix,yes) ;;			# shared object as lib.so file only
+      yes,svr4,*) ;;			# shared object as lib.so archive member only
+      yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+      esac
+    fi
+    ;;
+  esac
+  AC_MSG_RESULT([$enable_shared])
+
+  AC_MSG_CHECKING([whether to build static libraries])
+  # Make sure either enable_shared or enable_static is yes.
+  test yes = "$enable_shared" || enable_static=yes
+  AC_MSG_RESULT([$enable_static])
+
+  _LT_CONFIG($1)
+fi
+AC_LANG_POP
+CC=$lt_save_CC
+])# _LT_LANG_C_CONFIG
+
+
+# _LT_LANG_CXX_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a C++ compiler are suitably
+# defined.  These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_CXX_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+if test -n "$CXX" && ( test no != "$CXX" &&
+    ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
+    (test g++ != "$CXX"))); then
+  AC_PROG_CXXCPP
+else
+  _lt_caught_CXX_error=yes
+fi
+
+AC_LANG_PUSH(C++)
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(compiler_needs_object, $1)=no
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_caught_CXX_error"; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_CFLAGS=$CFLAGS
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  CFLAGS=$CXXFLAGS
+  compiler=$CC
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test yes = "$GXX"; then
+      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
+    else
+      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+    fi
+
+    if test yes = "$GXX"; then
+      # Set up default GNU C++ configuration
+
+      LT_PATH_LD
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test yes = "$with_gnu_ld"; then
+        _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='$wl'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+        else
+          _LT_TAGVAR(whole_archive_flag_spec, $1)=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+    _LT_TAGVAR(ld_shlibs, $1)=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+      aix[[4-9]]*)
+        if test ia64 = "$host_cpu"; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # have runtime linking enabled, and use it for executables.
+          # For shared libraries, we enable/disable runtime linking
+          # depending on the kind of the shared library created -
+          # when "with_aix_soname,aix_use_runtimelinking" is:
+          # "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+          # "aix,yes"  lib.so          shared, rtl:yes, for executables
+          #            lib.a           static archive
+          # "both,no"  lib.so.V(shr.o) shared, rtl:yes
+          #            lib.a(lib.so.V) shared, rtl:no,  for executables
+          # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+          #            lib.a(lib.so.V) shared, rtl:no
+          # "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+          #            lib.a           static archive
+          case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	      # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	      # so we don't have lib.a shared libs to link our executables.
+	      # We have to force runtime linking in this case.
+	      aix_use_runtimelinking=yes
+	      LDFLAGS="$LDFLAGS -Wl,-brtl"
+	    fi
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        _LT_TAGVAR(archive_cmds, $1)=''
+        _LT_TAGVAR(hardcode_direct, $1)=yes
+        _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+        _LT_TAGVAR(link_all_deplibs, $1)=yes
+        _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
+        case $with_aix_soname,$aix_use_runtimelinking in
+        aix,*) ;;	# no import file
+        svr4,* | *,yes) # use import file
+          # The Import File defines what to hardcode.
+          _LT_TAGVAR(hardcode_direct, $1)=no
+          _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+          ;;
+        esac
+
+        if test yes = "$GXX"; then
+          case $host_os in aix4.[[012]]|aix4.[[012]].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    _LT_TAGVAR(hardcode_direct, $1)=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag=$shared_flag' $wl-G'
+	  fi
+	  # Need to ensure runtime linking is disabled for the traditional
+	  # shared library, or the linker may eventually find shared libraries
+	  # /with/ Import File - we do not want to mix them.
+	  shared_flag_aix='-shared'
+	  shared_flag_svr4='-shared $wl-G'
+        else
+          # not using gcc
+          if test ia64 = "$host_cpu"; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test yes = "$aix_use_runtimelinking"; then
+	      shared_flag='$wl-G'
+	    else
+	      shared_flag='$wl-bM:SRE'
+	    fi
+	    shared_flag_aix='$wl-bM:SRE'
+	    shared_flag_svr4='$wl-G'
+          fi
+        fi
+
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        _LT_TAGVAR(always_export_symbols, $1)=yes
+	if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          # The "-G" linker flag allows undefined symbols.
+          _LT_TAGVAR(no_undefined_flag, $1)='-bernotok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          _LT_SYS_MODULE_PATH_AIX([$1])
+          _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+
+          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+        else
+          if test ia64 = "$host_cpu"; then
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
+	    _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    _LT_SYS_MODULE_PATH_AIX([$1])
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
+	    _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
+	    if test yes = "$with_gnu_ld"; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+	    fi
+	    _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	    # -brtl affects multiple linker settings, -berok does not and is overridden later
+	    compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
+	    if test svr4 != "$with_aix_soname"; then
+	      # This is similar to how AIX traditionally builds its shared
+	      # libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
+	      _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	    fi
+	    if test aix != "$with_aix_soname"; then
+	      _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	    else
+	      # used by -dlpreopen to get the symbols
+	      _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	    fi
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  # Joseph Beckenbach  says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	else
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+	case $GXX,$cc_basename in
+	,cl* | no,cl*)
+	  # Native MSVC
+	  # hardcode_libdir_flag_spec is actually meaningless, as there is
+	  # no search path for DLLs.
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  _LT_TAGVAR(always_export_symbols, $1)=yes
+	  _LT_TAGVAR(file_list_spec, $1)='@'
+	  # Tell ltmain to make .lib files, not .a files.
+	  libext=lib
+	  # Tell ltmain to make .dll files, not .so files.
+	  shrext_cmds=.dll
+	  # FIXME: Setting linknames here is a bad hack.
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+              cp "$export_symbols" "$output_objdir/$soname.def";
+              echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+            else
+              $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+            fi~
+            $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+            linknames='
+	  # The linker will not automatically build a static lib if we build a DLL.
+	  # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	  # Don't use ranlib
+	  _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+	  _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+            lt_tool_outputfile="@TOOL_OUTPUT@"~
+            case $lt_outputfile in
+              *.exe|*.EXE) ;;
+              *)
+                lt_outputfile=$lt_outputfile.exe
+                lt_tool_outputfile=$lt_tool_outputfile.exe
+                ;;
+            esac~
+            func_to_tool_file "$lt_outputfile"~
+            if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+              $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+              $RM "$lt_outputfile.manifest";
+            fi'
+	  ;;
+	*)
+	  # g++
+	  # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+	  # as there is no search path for DLLs.
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  _LT_TAGVAR(always_export_symbols, $1)=no
+	  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+
+	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	    # If the export-symbols file already is a .def file, use it as
+	    # is; otherwise, prepend EXPORTS...
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+              cp $export_symbols $output_objdir/$soname.def;
+            else
+              echo EXPORTS > $output_objdir/$soname.def;
+              cat $export_symbols >> $output_objdir/$soname.def;
+            fi~
+            $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	  else
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	  fi
+	  ;;
+	esac
+	;;
+      darwin* | rhapsody*)
+        _LT_DARWIN_LINKER_FEATURES($1)
+	;;
+
+      os2*)
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	_LT_TAGVAR(hardcode_minus_L, $1)=yes
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	shrext_cmds=.dll
+	_LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	  $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	  $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	  $ECHO EXPORTS >> $output_objdir/$libname.def~
+	  emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	  $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	  emximp -o $lib $output_objdir/$libname.def'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	  $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	  $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	  $ECHO EXPORTS >> $output_objdir/$libname.def~
+	  prefix_cmds="$SED"~
+	  if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	    prefix_cmds="$prefix_cmds -e 1d";
+	  fi~
+	  prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	  cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	  $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	  emximp -o $lib $output_objdir/$libname.def'
+	_LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      freebsd2.*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      freebsd-elf*)
+        _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        _LT_TAGVAR(ld_shlibs, $1)=yes
+        ;;
+
+      haiku*)
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+        _LT_TAGVAR(link_all_deplibs, $1)=yes
+        ;;
+
+      hpux9*)
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+        _LT_TAGVAR(hardcode_direct, $1)=yes
+        _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            _LT_TAGVAR(ld_shlibs, $1)=no
+            ;;
+          aCC*)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test yes = "$GXX"; then
+              _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              _LT_TAGVAR(ld_shlibs, $1)=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test no = "$with_gnu_ld"; then
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+	  _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            _LT_TAGVAR(hardcode_direct, $1)=no
+            _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+            ;;
+          *)
+            _LT_TAGVAR(hardcode_direct, $1)=yes
+            _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test yes = "$GXX"; then
+	      if test no = "$with_gnu_ld"; then
+	        case $host_cpu in
+	          hppa*64*)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      _LT_TAGVAR(ld_shlibs, $1)=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[[3-9]]*)
+	_LT_TAGVAR(hardcode_direct, $1)=no
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test yes = "$GXX"; then
+	      if test no = "$with_gnu_ld"; then
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	      else
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
+	      fi
+	    fi
+	    _LT_TAGVAR(link_all_deplibs, $1)=yes
+	    ;;
+        esac
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+        _LT_TAGVAR(inherit_rpath, $1)=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*)
+	      _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
+               rm -rf $tpldir~
+               $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+               compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+                $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+                $RANLIB $oldlib'
+	      _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+                $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+                $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname  -o $lib $wl-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    if test yes = "$supports_anon_versioning"; then
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+                cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+                echo "local: *; };" >> $output_objdir/$libname.ver~
+                $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+	      _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	      _LT_TAGVAR(compiler_needs_object, $1)=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        _LT_TAGVAR(ld_shlibs, $1)=yes
+	;;
+
+      openbsd* | bitrig*)
+	if test -f /usr/libexec/ld.so; then
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+		;;
+	      *)
+	        _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+                  echo "-hidden">> $lib.exp~
+                  $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
+                  $RM $lib.exp'
+	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+		;;
+	    esac
+
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test yes,no = "$GXX,$with_gnu_ld"; then
+	      _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+	      case $host in
+	        osf3*)
+	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+		  ;;
+	        *)
+	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+	      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      _LT_TAGVAR(ld_shlibs, $1)=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
+	    _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+              $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	    _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	    case $host_os in
+	      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands '-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    _LT_TAGVAR(link_all_deplibs, $1)=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test yes,no = "$GXX,$with_gnu_ld"; then
+	      _LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+                  $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
+	      else
+	        # g++ 2.7 appears to require '-G' NOT '-shared' on this
+	        # platform.
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+                  $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
+	      fi
+
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir'
+	      case $host_os in
+		solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+		*)
+		  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+      _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We CANNOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	_LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+	_LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
+	_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+	_LT_TAGVAR(link_all_deplibs, $1)=yes
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~
+              '"$_LT_TAGVAR(old_archive_cmds, $1)"
+	    _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~
+              '"$_LT_TAGVAR(reload_cmds, $1)"
+	    ;;
+	  *)
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+    esac
+
+    AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+    test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
+
+    _LT_TAGVAR(GCC, $1)=$GXX
+    _LT_TAGVAR(LD, $1)=$LD
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_SYS_HIDDEN_LIBDEPS($1)
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test yes != "$_lt_caught_CXX_error"
+
+AC_LANG_POP
+])# _LT_LANG_CXX_CONFIG
+
+
+# _LT_FUNC_STRIPNAME_CNF
+# ----------------------
+# func_stripname_cnf prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+#
+# This function is identical to the (non-XSI) version of func_stripname,
+# except this one can be used by m4 code that may be executed by configure,
+# rather than the libtool script.
+m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl
+AC_REQUIRE([_LT_DECL_SED])
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])
+func_stripname_cnf ()
+{
+  case @S|@2 in
+  .*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;;
+  *)  func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;;
+  esac
+} # func_stripname_cnf
+])# _LT_FUNC_STRIPNAME_CNF
+
+
+# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
+# ---------------------------------
+# Figure out "hidden" library dependencies from verbose
+# compiler output when linking a shared library.
+# Parse the compiler output and extract the necessary
+# objects, libraries and library flags.
+m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl
+# Dependencies to place before and after the object being linked:
+_LT_TAGVAR(predep_objects, $1)=
+_LT_TAGVAR(postdep_objects, $1)=
+_LT_TAGVAR(predeps, $1)=
+_LT_TAGVAR(postdeps, $1)=
+_LT_TAGVAR(compiler_lib_search_path, $1)=
+
+dnl we can't use the lt_simple_compile_test_code here,
+dnl because it contains code intended for an executable,
+dnl not a library.  It's possible we should let each
+dnl tag define a new lt_????_link_test_code variable,
+dnl but it's only used here...
+m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
+int a;
+void foo (void) { a = 0; }
+_LT_EOF
+], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
+      subroutine foo
+      implicit none
+      integer*4 a
+      a=0
+      return
+      end
+_LT_EOF
+], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
+      subroutine foo
+      implicit none
+      integer a
+      a=0
+      return
+      end
+_LT_EOF
+], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
+public class foo {
+  private int a;
+  public void bar (void) {
+    a = 0;
+  }
+};
+_LT_EOF
+], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF
+package foo
+func foo() {
+}
+_LT_EOF
+])
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
+esac
+
+dnl Parse the compiler output and extract the necessary
+dnl objects, libraries and library flags.
+if AC_TRY_EVAL(ac_compile); then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case $prev$p in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test x-L = "$p" ||
+          test x-R = "$p"; then
+	 prev=$p
+	 continue
+       fi
+
+       # Expand the sysroot to ease extracting the directories later.
+       if test -z "$prev"; then
+         case $p in
+         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+         esac
+       fi
+       case $p in
+       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+       esac
+       if test no = "$pre_test_object_deps_done"; then
+	 case $prev in
+	 -L | -R)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
+	     _LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p
+	   else
+	     _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$_LT_TAGVAR(postdeps, $1)"; then
+	   _LT_TAGVAR(postdeps, $1)=$prev$p
+	 else
+	   _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p"
+	 fi
+       fi
+       prev=
+       ;;
+
+    *.lto.$objext) ;; # Ignore GCC LTO objects
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test no = "$pre_test_object_deps_done"; then
+	 if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
+	   _LT_TAGVAR(predep_objects, $1)=$p
+	 else
+	   _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
+	 fi
+       else
+	 if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
+	   _LT_TAGVAR(postdep_objects, $1)=$p
+	 else
+	   _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling $1 test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+m4_if([$1], [CXX],
+[case $host_os in
+interix[[3-9]]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  _LT_TAGVAR(predep_objects,$1)=
+  _LT_TAGVAR(postdep_objects,$1)=
+  _LT_TAGVAR(postdeps,$1)=
+  ;;
+esac
+])
+
+case " $_LT_TAGVAR(postdeps, $1) " in
+*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
+esac
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=
+if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'`
+fi
+_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
+    [The directories searched by this compiler when creating a shared library])
+_LT_TAGDECL([], [predep_objects], [1],
+    [Dependencies to place before and after the objects being linked to
+    create a shared library])
+_LT_TAGDECL([], [postdep_objects], [1])
+_LT_TAGDECL([], [predeps], [1])
+_LT_TAGDECL([], [postdeps], [1])
+_LT_TAGDECL([], [compiler_lib_search_path], [1],
+    [The library search path used internally by the compiler when linking
+    a shared library])
+])# _LT_SYS_HIDDEN_LIBDEPS
+
+
+# _LT_LANG_F77_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a Fortran 77 compiler are
+# suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_F77_CONFIG],
+[AC_LANG_PUSH(Fortran 77)
+if test -z "$F77" || test no = "$F77"; then
+  _lt_disable_F77=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for f77 test sources.
+ac_ext=f
+
+# Object file extension for compiled f77 test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the F77 compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_disable_F77"; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="\
+      subroutine t
+      return
+      end
+"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code="\
+      program t
+      end
+"
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_GCC=$GCC
+  lt_save_CFLAGS=$CFLAGS
+  CC=${F77-"f77"}
+  CFLAGS=$FFLAGS
+  compiler=$CC
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+  GCC=$G77
+  if test -n "$compiler"; then
+    AC_MSG_CHECKING([if libtool supports shared libraries])
+    AC_MSG_RESULT([$can_build_shared])
+
+    AC_MSG_CHECKING([whether to build shared libraries])
+    test no = "$can_build_shared" && enable_shared=no
+
+    # On AIX, shared libraries and static libraries use the same namespace, and
+    # are all built from PIC.
+    case $host_os in
+      aix3*)
+        test yes = "$enable_shared" && enable_static=no
+        if test -n "$RANLIB"; then
+          archive_cmds="$archive_cmds~\$RANLIB \$lib"
+          postinstall_cmds='$RANLIB $lib'
+        fi
+        ;;
+      aix[[4-9]]*)
+	if test ia64 != "$host_cpu"; then
+	  case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+	  yes,aix,yes) ;;		# shared object as lib.so file only
+	  yes,svr4,*) ;;		# shared object as lib.so archive member only
+	  yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+	  esac
+	fi
+        ;;
+    esac
+    AC_MSG_RESULT([$enable_shared])
+
+    AC_MSG_CHECKING([whether to build static libraries])
+    # Make sure either enable_shared or enable_static is yes.
+    test yes = "$enable_shared" || enable_static=yes
+    AC_MSG_RESULT([$enable_static])
+
+    _LT_TAGVAR(GCC, $1)=$G77
+    _LT_TAGVAR(LD, $1)=$LD
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  GCC=$lt_save_GCC
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+fi # test yes != "$_lt_disable_F77"
+
+AC_LANG_POP
+])# _LT_LANG_F77_CONFIG
+
+
+# _LT_LANG_FC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for a Fortran compiler are
+# suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_FC_CONFIG],
+[AC_LANG_PUSH(Fortran)
+
+if test -z "$FC" || test no = "$FC"; then
+  _lt_disable_FC=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for fc test sources.
+ac_ext=${ac_fc_srcext-f}
+
+# Object file extension for compiled fc test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the FC compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_disable_FC"; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="\
+      subroutine t
+      return
+      end
+"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code="\
+      program t
+      end
+"
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_GCC=$GCC
+  lt_save_CFLAGS=$CFLAGS
+  CC=${FC-"f95"}
+  CFLAGS=$FCFLAGS
+  compiler=$CC
+  GCC=$ac_cv_fc_compiler_gnu
+
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+
+  if test -n "$compiler"; then
+    AC_MSG_CHECKING([if libtool supports shared libraries])
+    AC_MSG_RESULT([$can_build_shared])
+
+    AC_MSG_CHECKING([whether to build shared libraries])
+    test no = "$can_build_shared" && enable_shared=no
+
+    # On AIX, shared libraries and static libraries use the same namespace, and
+    # are all built from PIC.
+    case $host_os in
+      aix3*)
+        test yes = "$enable_shared" && enable_static=no
+        if test -n "$RANLIB"; then
+          archive_cmds="$archive_cmds~\$RANLIB \$lib"
+          postinstall_cmds='$RANLIB $lib'
+        fi
+        ;;
+      aix[[4-9]]*)
+	if test ia64 != "$host_cpu"; then
+	  case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+	  yes,aix,yes) ;;		# shared object as lib.so file only
+	  yes,svr4,*) ;;		# shared object as lib.so archive member only
+	  yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+	  esac
+	fi
+        ;;
+    esac
+    AC_MSG_RESULT([$enable_shared])
+
+    AC_MSG_CHECKING([whether to build static libraries])
+    # Make sure either enable_shared or enable_static is yes.
+    test yes = "$enable_shared" || enable_static=yes
+    AC_MSG_RESULT([$enable_static])
+
+    _LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu
+    _LT_TAGVAR(LD, $1)=$LD
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_SYS_HIDDEN_LIBDEPS($1)
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  GCC=$lt_save_GCC
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+fi # test yes != "$_lt_disable_FC"
+
+AC_LANG_POP
+])# _LT_LANG_FC_CONFIG
+
+
+# _LT_LANG_GCJ_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Java Compiler compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_GCJ_CONFIG],
+[AC_REQUIRE([LT_PROG_GCJ])dnl
+AC_LANG_SAVE
+
+# Source file extension for Java test sources.
+ac_ext=java
+
+# Object file extension for compiled Java test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="class foo {}"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GCJ-"gcj"}
+CFLAGS=$GCJFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)=$LD
+_LT_CC_BASENAME([$compiler])
+
+# GCJ did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+
+  _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GCJ_CONFIG
+
+
+# _LT_LANG_GO_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Go compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_GO_CONFIG],
+[AC_REQUIRE([LT_PROG_GO])dnl
+AC_LANG_SAVE
+
+# Source file extension for Go test sources.
+ac_ext=go
+
+# Object file extension for compiled Go test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="package main; func main() { }"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='package main; func main() { }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GOC-"gccgo"}
+CFLAGS=$GOFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)=$LD
+_LT_CC_BASENAME([$compiler])
+
+# Go did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+
+  _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GO_CONFIG
+
+
+# _LT_LANG_RC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for the Windows resource compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_RC_CONFIG],
+[AC_REQUIRE([LT_PROG_RC])dnl
+AC_LANG_SAVE
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code=$lt_simple_compile_test_code
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=
+CC=${RC-"windres"}
+CFLAGS=
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_CC_BASENAME([$compiler])
+_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+
+if test -n "$compiler"; then
+  :
+  _LT_CONFIG($1)
+fi
+
+GCC=$lt_save_GCC
+AC_LANG_RESTORE
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_RC_CONFIG
+
+
+# LT_PROG_GCJ
+# -----------
+AC_DEFUN([LT_PROG_GCJ],
+[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
+  [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
+    [AC_CHECK_TOOL(GCJ, gcj,)
+      test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2"
+      AC_SUBST(GCJFLAGS)])])[]dnl
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
+
+
+# LT_PROG_GO
+# ----------
+AC_DEFUN([LT_PROG_GO],
+[AC_CHECK_TOOL(GOC, gccgo,)
+])
+
+
+# LT_PROG_RC
+# ----------
+AC_DEFUN([LT_PROG_RC],
+[AC_CHECK_TOOL(RC, windres,)
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_RC], [])
+
+
+# _LT_DECL_EGREP
+# --------------
+# If we don't have a new enough Autoconf to choose the best grep
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_EGREP],
+[AC_REQUIRE([AC_PROG_EGREP])dnl
+AC_REQUIRE([AC_PROG_FGREP])dnl
+test -z "$GREP" && GREP=grep
+_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
+_LT_DECL([], [EGREP], [1], [An ERE matcher])
+_LT_DECL([], [FGREP], [1], [A literal string matcher])
+dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
+AC_SUBST([GREP])
+])
+
+
+# _LT_DECL_OBJDUMP
+# --------------
+# If we don't have a new enough Autoconf to choose the best objdump
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_OBJDUMP],
+[AC_CHECK_TOOL(OBJDUMP, objdump, false)
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
+AC_SUBST([OBJDUMP])
+])
+
+# _LT_DECL_DLLTOOL
+# ----------------
+# Ensure DLLTOOL variable is set.
+m4_defun([_LT_DECL_DLLTOOL],
+[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])
+AC_SUBST([DLLTOOL])
+])
+
+# _LT_DECL_SED
+# ------------
+# Check for a fully-functional sed program, that truncates
+# as few characters as possible.  Prefer GNU sed if found.
+m4_defun([_LT_DECL_SED],
+[AC_PROG_SED
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
+_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
+    [Sed that helps us avoid accidentally triggering echo(1) options like -n])
+])# _LT_DECL_SED
+
+m4_ifndef([AC_PROG_SED], [
+############################################################
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_SED.  When it is available in   #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+############################################################
+
+m4_defun([AC_PROG_SED],
+[AC_MSG_CHECKING([for a sed that does not truncate output])
+AC_CACHE_VAL(lt_cv_path_SED,
+[# Loop through the user's path and test for sed and gsed.
+# Then use that list of sed's as ones to test for truncation.
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for lt_ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
+        lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
+      fi
+    done
+  done
+done
+IFS=$as_save_IFS
+lt_ac_max=0
+lt_ac_count=0
+# Add /usr/xpg4/bin/sed as it is typically found on Solaris
+# along with /bin/sed that truncates output.
+for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
+  test ! -f "$lt_ac_sed" && continue
+  cat /dev/null > conftest.in
+  lt_ac_count=0
+  echo $ECHO_N "0123456789$ECHO_C" >conftest.in
+  # Check for GNU sed and select it if it is found.
+  if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
+    lt_cv_path_SED=$lt_ac_sed
+    break
+  fi
+  while true; do
+    cat conftest.in conftest.in >conftest.tmp
+    mv conftest.tmp conftest.in
+    cp conftest.in conftest.nl
+    echo >>conftest.nl
+    $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
+    cmp -s conftest.out conftest.nl || break
+    # 10000 chars as input seems more than enough
+    test 10 -lt "$lt_ac_count" && break
+    lt_ac_count=`expr $lt_ac_count + 1`
+    if test "$lt_ac_count" -gt "$lt_ac_max"; then
+      lt_ac_max=$lt_ac_count
+      lt_cv_path_SED=$lt_ac_sed
+    fi
+  done
+done
+])
+SED=$lt_cv_path_SED
+AC_SUBST([SED])
+AC_MSG_RESULT([$SED])
+])#AC_PROG_SED
+])#m4_ifndef
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_SED], [])
+
+
+# _LT_CHECK_SHELL_FEATURES
+# ------------------------
+# Find out whether the shell is Bourne or XSI compatible,
+# or has some other useful features.
+m4_defun([_LT_CHECK_SHELL_FEATURES],
+[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
+_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
+])# _LT_CHECK_SHELL_FEATURES
+
+
+# _LT_PATH_CONVERSION_FUNCTIONS
+# -----------------------------
+# Determine what file name conversion functions should be used by
+# func_to_host_file (and, implicitly, by func_to_host_path).  These are needed
+# for certain cross-compile configurations and native mingw.
+m4_defun([_LT_PATH_CONVERSION_FUNCTIONS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_MSG_CHECKING([how to convert $build file names to $host format])
+AC_CACHE_VAL(lt_cv_to_host_file_cmd,
+[case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+])
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+AC_MSG_RESULT([$lt_cv_to_host_file_cmd])
+_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd],
+         [0], [convert $build file names to $host format])dnl
+
+AC_MSG_CHECKING([how to convert $build file names to toolchain format])
+AC_CACHE_VAL(lt_cv_to_tool_file_cmd,
+[#assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+])
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+AC_MSG_RESULT([$lt_cv_to_tool_file_cmd])
+_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd],
+         [0], [convert $build files to toolchain format])dnl
+])# _LT_PATH_CONVERSION_FUNCTIONS
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/ltoptions.m4 b/trunk/3rdparty/gperftools-2-fit/m4/ltoptions.m4
new file mode 100644
index 000000000..94b082976
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/ltoptions.m4
@@ -0,0 +1,437 @@
+# Helper functions for option handling.                    -*- Autoconf -*-
+#
+#   Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software
+#   Foundation, Inc.
+#   Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 8 ltoptions.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
+
+
+# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
+# ------------------------------------------
+m4_define([_LT_MANGLE_OPTION],
+[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
+
+
+# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
+# ---------------------------------------
+# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
+# matching handler defined, dispatch to it.  Other OPTION-NAMEs are
+# saved as a flag.
+m4_define([_LT_SET_OPTION],
+[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
+m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
+        _LT_MANGLE_DEFUN([$1], [$2]),
+    [m4_warning([Unknown $1 option '$2'])])[]dnl
+])
+
+
+# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
+# ------------------------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+m4_define([_LT_IF_OPTION],
+[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
+
+
+# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
+# -------------------------------------------------------
+# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
+# are set.
+m4_define([_LT_UNLESS_OPTIONS],
+[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+	    [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
+		      [m4_define([$0_found])])])[]dnl
+m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
+])[]dnl
+])
+
+
+# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
+# ----------------------------------------
+# OPTION-LIST is a space-separated list of Libtool options associated
+# with MACRO-NAME.  If any OPTION has a matching handler declared with
+# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
+# the unknown option and exit.
+m4_defun([_LT_SET_OPTIONS],
+[# Set options
+m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+    [_LT_SET_OPTION([$1], _LT_Option)])
+
+m4_if([$1],[LT_INIT],[
+  dnl
+  dnl Simply set some default values (i.e off) if boolean options were not
+  dnl specified:
+  _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
+  ])
+  _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
+  ])
+  dnl
+  dnl If no reference was made to various pairs of opposing options, then
+  dnl we run the default mode handler for the pair.  For example, if neither
+  dnl 'shared' nor 'disable-shared' was passed, we enable building of shared
+  dnl archives by default:
+  _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
+  _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
+		   [_LT_ENABLE_FAST_INSTALL])
+  _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4],
+		   [_LT_WITH_AIX_SONAME([aix])])
+  ])
+])# _LT_SET_OPTIONS
+
+
+## --------------------------------- ##
+## Macros to handle LT_INIT options. ##
+## --------------------------------- ##
+
+# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
+# -----------------------------------------
+m4_define([_LT_MANGLE_DEFUN],
+[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
+
+
+# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
+# -----------------------------------------------
+m4_define([LT_OPTION_DEFINE],
+[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
+])# LT_OPTION_DEFINE
+
+
+# dlopen
+# ------
+LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
+])
+
+AU_DEFUN([AC_LIBTOOL_DLOPEN],
+[_LT_SET_OPTION([LT_INIT], [dlopen])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'dlopen' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
+
+
+# win32-dll
+# ---------
+# Declare package support for building win32 dll's.
+LT_OPTION_DEFINE([LT_INIT], [win32-dll],
+[enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+  AC_CHECK_TOOL(AS, as, false)
+  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+  AC_CHECK_TOOL(OBJDUMP, objdump, false)
+  ;;
+esac
+
+test -z "$AS" && AS=as
+_LT_DECL([], [AS],      [1], [Assembler program])dnl
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
+])# win32-dll
+
+AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+_LT_SET_OPTION([LT_INIT], [win32-dll])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'win32-dll' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
+
+
+# _LT_ENABLE_SHARED([DEFAULT])
+# ----------------------------
+# implement the --enable-shared flag, and supports the 'shared' and
+# 'disable-shared' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_SHARED],
+[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([shared],
+    [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
+	[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
+
+    _LT_DECL([build_libtool_libs], [enable_shared], [0],
+	[Whether or not to build shared libraries])
+])# _LT_ENABLE_SHARED
+
+LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
+])
+
+AC_DEFUN([AC_DISABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], [disable-shared])
+])
+
+AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
+AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_SHARED], [])
+dnl AC_DEFUN([AM_DISABLE_SHARED], [])
+
+
+
+# _LT_ENABLE_STATIC([DEFAULT])
+# ----------------------------
+# implement the --enable-static flag, and support the 'static' and
+# 'disable-static' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_STATIC],
+[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([static],
+    [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
+	[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
+
+    _LT_DECL([build_old_libs], [enable_static], [0],
+	[Whether or not to build static libraries])
+])# _LT_ENABLE_STATIC
+
+LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
+])
+
+AC_DEFUN([AC_DISABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], [disable-static])
+])
+
+AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
+AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_STATIC], [])
+dnl AC_DEFUN([AM_DISABLE_STATIC], [])
+
+
+
+# _LT_ENABLE_FAST_INSTALL([DEFAULT])
+# ----------------------------------
+# implement the --enable-fast-install flag, and support the 'fast-install'
+# and 'disable-fast-install' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_FAST_INSTALL],
+[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([fast-install],
+    [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
+    [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
+
+_LT_DECL([fast_install], [enable_fast_install], [0],
+	 [Whether or not to optimize for fast installation])dnl
+])# _LT_ENABLE_FAST_INSTALL
+
+LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
+
+# Old names:
+AU_DEFUN([AC_ENABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the 'fast-install' option into LT_INIT's first parameter.])
+])
+
+AU_DEFUN([AC_DISABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the 'disable-fast-install' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
+dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
+
+
+# _LT_WITH_AIX_SONAME([DEFAULT])
+# ----------------------------------
+# implement the --with-aix-soname flag, and support the `aix-soname=aix'
+# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT
+# is either `aix', `both' or `svr4'.  If omitted, it defaults to `aix'.
+m4_define([_LT_WITH_AIX_SONAME],
+[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl
+shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[[5-9]]*,yes)
+  AC_MSG_CHECKING([which variant of shared library versioning to provide])
+  AC_ARG_WITH([aix-soname],
+    [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
+      [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])],
+    [case $withval in
+    aix|svr4|both)
+      ;;
+    *)
+      AC_MSG_ERROR([Unknown argument to --with-aix-soname])
+      ;;
+    esac
+    lt_cv_with_aix_soname=$with_aix_soname],
+    [AC_CACHE_VAL([lt_cv_with_aix_soname],
+      [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT)
+    with_aix_soname=$lt_cv_with_aix_soname])
+  AC_MSG_RESULT([$with_aix_soname])
+  if test aix != "$with_aix_soname"; then
+    # For the AIX way of multilib, we name the shared archive member
+    # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+    # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+    # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+    # the AIX toolchain works better with OBJECT_MODE set (default 32).
+    if test 64 = "${OBJECT_MODE-32}"; then
+      shared_archive_member_spec=shr_64
+    else
+      shared_archive_member_spec=shr
+    fi
+  fi
+  ;;
+*)
+  with_aix_soname=aix
+  ;;
+esac
+
+_LT_DECL([], [shared_archive_member_spec], [0],
+    [Shared archive member basename, for filename based shared library versioning on AIX])dnl
+])# _LT_WITH_AIX_SONAME
+
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])])
+
+
+# _LT_WITH_PIC([MODE])
+# --------------------
+# implement the --with-pic flag, and support the 'pic-only' and 'no-pic'
+# LT_INIT options.
+# MODE is either 'yes' or 'no'.  If omitted, it defaults to 'both'.
+m4_define([_LT_WITH_PIC],
+[AC_ARG_WITH([pic],
+    [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
+	[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
+    [lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for lt_pkg in $withval; do
+	IFS=$lt_save_ifs
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [pic_mode=m4_default([$1], [default])])
+
+_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
+])# _LT_WITH_PIC
+
+LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
+
+# Old name:
+AU_DEFUN([AC_LIBTOOL_PICMODE],
+[_LT_SET_OPTION([LT_INIT], [pic-only])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'pic-only' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
+
+## ----------------- ##
+## LTDL_INIT Options ##
+## ----------------- ##
+
+m4_define([_LTDL_MODE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
+		 [m4_define([_LTDL_MODE], [nonrecursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [recursive],
+		 [m4_define([_LTDL_MODE], [recursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [subproject],
+		 [m4_define([_LTDL_MODE], [subproject])])
+
+m4_define([_LTDL_TYPE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [installable],
+		 [m4_define([_LTDL_TYPE], [installable])])
+LT_OPTION_DEFINE([LTDL_INIT], [convenience],
+		 [m4_define([_LTDL_TYPE], [convenience])])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/ltsugar.m4 b/trunk/3rdparty/gperftools-2-fit/m4/ltsugar.m4
new file mode 100644
index 000000000..48bc9344a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/ltsugar.m4
@@ -0,0 +1,124 @@
+# ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
+#
+# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
+# Foundation, Inc.
+# Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 6 ltsugar.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
+
+
+# lt_join(SEP, ARG1, [ARG2...])
+# -----------------------------
+# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
+# associated separator.
+# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
+# versions in m4sugar had bugs.
+m4_define([lt_join],
+[m4_if([$#], [1], [],
+       [$#], [2], [[$2]],
+       [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
+m4_define([_lt_join],
+[m4_if([$#$2], [2], [],
+       [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
+
+
+# lt_car(LIST)
+# lt_cdr(LIST)
+# ------------
+# Manipulate m4 lists.
+# These macros are necessary as long as will still need to support
+# Autoconf-2.59, which quotes differently.
+m4_define([lt_car], [[$1]])
+m4_define([lt_cdr],
+[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
+       [$#], 1, [],
+       [m4_dquote(m4_shift($@))])])
+m4_define([lt_unquote], $1)
+
+
+# lt_append(MACRO-NAME, STRING, [SEPARATOR])
+# ------------------------------------------
+# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
+# Note that neither SEPARATOR nor STRING are expanded; they are appended
+# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
+# No SEPARATOR is output if MACRO-NAME was previously undefined (different
+# than defined and empty).
+#
+# This macro is needed until we can rely on Autoconf 2.62, since earlier
+# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
+m4_define([lt_append],
+[m4_define([$1],
+	   m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
+
+
+
+# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
+# ----------------------------------------------------------
+# Produce a SEP delimited list of all paired combinations of elements of
+# PREFIX-LIST with SUFFIX1 through SUFFIXn.  Each element of the list
+# has the form PREFIXmINFIXSUFFIXn.
+# Needed until we can rely on m4_combine added in Autoconf 2.62.
+m4_define([lt_combine],
+[m4_if(m4_eval([$# > 3]), [1],
+       [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
+[[m4_foreach([_Lt_prefix], [$2],
+	     [m4_foreach([_Lt_suffix],
+		]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
+	[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
+
+
+# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
+# -----------------------------------------------------------------------
+# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
+# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
+m4_define([lt_if_append_uniq],
+[m4_ifdef([$1],
+	  [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
+		 [lt_append([$1], [$2], [$3])$4],
+		 [$5])],
+	  [lt_append([$1], [$2], [$3])$4])])
+
+
+# lt_dict_add(DICT, KEY, VALUE)
+# -----------------------------
+m4_define([lt_dict_add],
+[m4_define([$1($2)], [$3])])
+
+
+# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
+# --------------------------------------------
+m4_define([lt_dict_add_subkey],
+[m4_define([$1($2:$3)], [$4])])
+
+
+# lt_dict_fetch(DICT, KEY, [SUBKEY])
+# ----------------------------------
+m4_define([lt_dict_fetch],
+[m4_ifval([$3],
+	m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
+    m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
+
+
+# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
+# -----------------------------------------------------------------
+m4_define([lt_if_dict_fetch],
+[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
+	[$5],
+    [$6])])
+
+
+# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
+# --------------------------------------------------------------
+m4_define([lt_dict_filter],
+[m4_if([$5], [], [],
+  [lt_join(m4_quote(m4_default([$4], [[, ]])),
+           lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
+		      [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
+])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/ltversion.m4 b/trunk/3rdparty/gperftools-2-fit/m4/ltversion.m4
new file mode 100644
index 000000000..fa04b52a3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/ltversion.m4
@@ -0,0 +1,23 @@
+# ltversion.m4 -- version numbers			-*- Autoconf -*-
+#
+#   Copyright (C) 2004, 2011-2015 Free Software Foundation, Inc.
+#   Written by Scott James Remnant, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# @configure_input@
+
+# serial 4179 ltversion.m4
+# This file is part of GNU Libtool
+
+m4_define([LT_PACKAGE_VERSION], [2.4.6])
+m4_define([LT_PACKAGE_REVISION], [2.4.6])
+
+AC_DEFUN([LTVERSION_VERSION],
+[macro_version='2.4.6'
+macro_revision='2.4.6'
+_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
+_LT_DECL(, macro_revision, 0)
+])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/lt~obsolete.m4 b/trunk/3rdparty/gperftools-2-fit/m4/lt~obsolete.m4
new file mode 100644
index 000000000..c6b26f88f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/lt~obsolete.m4
@@ -0,0 +1,99 @@
+# lt~obsolete.m4 -- aclocal satisfying obsolete definitions.    -*-Autoconf-*-
+#
+#   Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software
+#   Foundation, Inc.
+#   Written by Scott James Remnant, 2004.
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 5 lt~obsolete.m4
+
+# These exist entirely to fool aclocal when bootstrapping libtool.
+#
+# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN),
+# which have later been changed to m4_define as they aren't part of the
+# exported API, or moved to Autoconf or Automake where they belong.
+#
+# The trouble is, aclocal is a bit thick.  It'll see the old AC_DEFUN
+# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
+# using a macro with the same name in our local m4/libtool.m4 it'll
+# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
+# and doesn't know about Autoconf macros at all.)
+#
+# So we provide this file, which has a silly filename so it's always
+# included after everything else.  This provides aclocal with the
+# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
+# because those macros already exist, or will be overwritten later.
+# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
+#
+# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
+# Yes, that means every name once taken will need to remain here until
+# we give up compatibility with versions before 1.7, at which point
+# we need to keep only those names which we still refer to.
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
+
+m4_ifndef([AC_LIBTOOL_LINKER_OPTION],	[AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
+m4_ifndef([AC_PROG_EGREP],		[AC_DEFUN([AC_PROG_EGREP])])
+m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH],	[AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_AC_SHELL_INIT],		[AC_DEFUN([_LT_AC_SHELL_INIT])])
+m4_ifndef([_LT_AC_SYS_LIBPATH_AIX],	[AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
+m4_ifndef([_LT_PROG_LTMAIN],		[AC_DEFUN([_LT_PROG_LTMAIN])])
+m4_ifndef([_LT_AC_TAGVAR],		[AC_DEFUN([_LT_AC_TAGVAR])])
+m4_ifndef([AC_LTDL_ENABLE_INSTALL],	[AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
+m4_ifndef([AC_LTDL_PREOPEN],		[AC_DEFUN([AC_LTDL_PREOPEN])])
+m4_ifndef([_LT_AC_SYS_COMPILER],	[AC_DEFUN([_LT_AC_SYS_COMPILER])])
+m4_ifndef([_LT_AC_LOCK],		[AC_DEFUN([_LT_AC_LOCK])])
+m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE],	[AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
+m4_ifndef([_LT_AC_TRY_DLOPEN_SELF],	[AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
+m4_ifndef([AC_LIBTOOL_PROG_CC_C_O],	[AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
+m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
+m4_ifndef([AC_LIBTOOL_OBJDIR],		[AC_DEFUN([AC_LIBTOOL_OBJDIR])])
+m4_ifndef([AC_LTDL_OBJDIR],		[AC_DEFUN([AC_LTDL_OBJDIR])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
+m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP],	[AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
+m4_ifndef([AC_PATH_MAGIC],		[AC_DEFUN([AC_PATH_MAGIC])])
+m4_ifndef([AC_PROG_LD_GNU],		[AC_DEFUN([AC_PROG_LD_GNU])])
+m4_ifndef([AC_PROG_LD_RELOAD_FLAG],	[AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
+m4_ifndef([AC_DEPLIBS_CHECK_METHOD],	[AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
+m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS],	[AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
+m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP],	[AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
+m4_ifndef([LT_AC_PROG_EGREP],		[AC_DEFUN([LT_AC_PROG_EGREP])])
+m4_ifndef([LT_AC_PROG_SED],		[AC_DEFUN([LT_AC_PROG_SED])])
+m4_ifndef([_LT_CC_BASENAME],		[AC_DEFUN([_LT_CC_BASENAME])])
+m4_ifndef([_LT_COMPILER_BOILERPLATE],	[AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
+m4_ifndef([_LT_LINKER_BOILERPLATE],	[AC_DEFUN([_LT_LINKER_BOILERPLATE])])
+m4_ifndef([_AC_PROG_LIBTOOL],		[AC_DEFUN([_AC_PROG_LIBTOOL])])
+m4_ifndef([AC_LIBTOOL_SETUP],		[AC_DEFUN([AC_LIBTOOL_SETUP])])
+m4_ifndef([_LT_AC_CHECK_DLFCN],		[AC_DEFUN([_LT_AC_CHECK_DLFCN])])
+m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER],	[AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
+m4_ifndef([_LT_AC_TAGCONFIG],		[AC_DEFUN([_LT_AC_TAGCONFIG])])
+m4_ifndef([AC_DISABLE_FAST_INSTALL],	[AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
+m4_ifndef([_LT_AC_LANG_CXX],		[AC_DEFUN([_LT_AC_LANG_CXX])])
+m4_ifndef([_LT_AC_LANG_F77],		[AC_DEFUN([_LT_AC_LANG_F77])])
+m4_ifndef([_LT_AC_LANG_GCJ],		[AC_DEFUN([_LT_AC_LANG_GCJ])])
+m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
+m4_ifndef([_LT_AC_LANG_C_CONFIG],	[AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
+m4_ifndef([_LT_AC_LANG_CXX_CONFIG],	[AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
+m4_ifndef([_LT_AC_LANG_F77_CONFIG],	[AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
+m4_ifndef([_LT_AC_LANG_GCJ_CONFIG],	[AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
+m4_ifndef([_LT_AC_LANG_RC_CONFIG],	[AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
+m4_ifndef([AC_LIBTOOL_CONFIG],		[AC_DEFUN([AC_LIBTOOL_CONFIG])])
+m4_ifndef([_LT_AC_FILE_LTDLL_C],	[AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
+m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS],	[AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])])
+m4_ifndef([_LT_AC_PROG_CXXCPP],		[AC_DEFUN([_LT_AC_PROG_CXXCPP])])
+m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS],	[AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])])
+m4_ifndef([_LT_PROG_ECHO_BACKSLASH],	[AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_PROG_F77],		[AC_DEFUN([_LT_PROG_F77])])
+m4_ifndef([_LT_PROG_FC],		[AC_DEFUN([_LT_PROG_FC])])
+m4_ifndef([_LT_PROG_CXX],		[AC_DEFUN([_LT_PROG_CXX])])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/pc_from_ucontext.m4 b/trunk/3rdparty/gperftools-2-fit/m4/pc_from_ucontext.m4
new file mode 100644
index 000000000..159b01df6
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/pc_from_ucontext.m4
@@ -0,0 +1,112 @@
+# We want to access the "PC" (Program Counter) register from a struct
+# ucontext.  Every system has its own way of doing that.  We try all the
+# possibilities we know about.  Note REG_PC should come first (REG_RIP
+# is also defined on solaris, but does the wrong thing).
+
+# OpenBSD doesn't have ucontext.h, but we can get PC from ucontext_t
+# by using signal.h.
+
+# The first argument of AC_PC_FROM_UCONTEXT will be invoked when we
+# cannot find a way to obtain PC from ucontext.
+
+AC_DEFUN([AC_PC_FROM_UCONTEXT],
+  [AC_CHECK_HEADERS(ucontext.h)
+   # Redhat 7 has , but it barfs if we #include it directly
+   # (this was fixed in later redhats).   works fine, so use that.
+   if grep "Red Hat Linux release 7" /etc/redhat-release >/dev/null 2>&1; then
+     AC_DEFINE(HAVE_SYS_UCONTEXT_H, 0, [ is broken on redhat 7])
+     ac_cv_header_sys_ucontext_h=no
+   else
+     AC_CHECK_HEADERS(sys/ucontext.h)       # ucontext on OS X 10.6 (at least)
+   fi
+   AC_CHECK_HEADERS(cygwin/signal.h)        # ucontext on cywgin
+   AC_CHECK_HEADERS(asm/ptrace.h)           # get ptrace macros, e.g. PT_NIP
+   AC_MSG_CHECKING([how to access the program counter from a struct ucontext])
+   pc_fields="           uc_mcontext.gregs[[REG_PC]]"  # Solaris x86 (32 + 64 bit)
+   pc_fields="$pc_fields uc_mcontext.gregs[[REG_EIP]]" # Linux (i386)
+   pc_fields="$pc_fields uc_mcontext.gregs[[REG_RIP]]" # Linux (x86_64)
+   pc_fields="$pc_fields uc_mcontext.sc_ip"            # Linux (ia64)
+   pc_fields="$pc_fields uc_mcontext.pc"               # Linux (mips)
+   pc_fields="$pc_fields uc_mcontext.uc_regs->gregs[[PT_NIP]]" # Linux (ppc)
+   pc_fields="$pc_fields uc_mcontext.__gregs[[REG_PC]]"  # Linux (riscv64)
+   pc_fields="$pc_fields uc_mcontext.psw.addr"         # Linux (s390)
+   pc_fields="$pc_fields uc_mcontext.gregs[[R15]]"     # Linux (arm old [untested])
+   pc_fields="$pc_fields uc_mcontext.arm_pc"           # Linux (arm arch 5)
+   pc_fields="$pc_fields uc_mcontext.cr0_hi"           # Linux (e2k)
+   pc_fields="$pc_fields uc_mcontext.gp_regs[[PT_NIP]]"  # Suse SLES 11 (ppc64)
+   pc_fields="$pc_fields uc_mcontext.mc_eip"           # FreeBSD (i386)
+   pc_fields="$pc_fields uc_mcontext.mc_srr0"          # FreeBSD (powerpc, powerpc64)
+   pc_fields="$pc_fields uc_mcontext.mc_rip"           # FreeBSD (x86_64 [untested])
+   pc_fields="$pc_fields uc_mcontext.__gregs[[_REG_EIP]]"  # NetBSD (i386)
+   pc_fields="$pc_fields uc_mcontext.__gregs[[_REG_RIP]]"  # NetBSD (x86_64)
+   pc_fields="$pc_fields uc_mcontext->ss.eip"          # OS X (i386, <=10.4)
+   pc_fields="$pc_fields uc_mcontext->__ss.__eip"      # OS X (i386, >=10.5)
+   pc_fields="$pc_fields uc_mcontext->ss.rip"          # OS X (x86_64)
+   pc_fields="$pc_fields uc_mcontext->__ss.__rip"      # OS X (>=10.5 [untested])
+   pc_fields="$pc_fields uc_mcontext->ss.srr0"         # OS X (ppc, ppc64 [untested])
+   pc_fields="$pc_fields uc_mcontext->__ss.__srr0"     # OS X (>=10.5 [untested])
+   pc_fields="$pc_fields uc_mcontext->__ss.__pc"       # OS X (arm64)
+   pc_field_found=false
+   for pc_field in $pc_fields; do
+     if ! $pc_field_found; then
+       # Prefer sys/ucontext.h to ucontext.h, for OS X's sake.
+       if test "x$ac_cv_header_cygwin_signal_h" = xyes; then
+         AC_TRY_COMPILE([#define _GNU_SOURCE 1
+                         #include ],
+                        [ucontext_t u; return u.$pc_field == 0;],
+                        AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field,
+                                           How to access the PC from a struct ucontext)
+                        AC_MSG_RESULT([$pc_field])
+                        pc_field_found=true)
+       elif test "x$ac_cv_header_asm_ptrace_h" = xyes -a "x$ac_cv_header_sys_ucontext_h" = xyes; then
+         AC_TRY_COMPILE([#define _GNU_SOURCE 1
+                         #include 
+                         #include ],
+                        [ucontext_t u; return u.$pc_field == 0;],
+                        AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field,
+                                           How to access the PC from a struct ucontext)
+                        AC_MSG_RESULT([$pc_field])
+                        pc_field_found=true)
+       elif test "x$ac_cv_header_sys_ucontext_h" = xyes; then
+         AC_TRY_COMPILE([#define _GNU_SOURCE 1
+                        #include ],
+                        [ucontext_t u; return u.$pc_field == 0;],
+                        AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field,
+                                           How to access the PC from a struct ucontext)
+                        AC_MSG_RESULT([$pc_field])
+                        pc_field_found=true)
+       elif test "x$ac_cv_header_ucontext_h" = xyes; then
+         AC_TRY_COMPILE([#define _GNU_SOURCE 1
+                         #include ],
+                        [ucontext_t u; return u.$pc_field == 0;],
+                        AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field,
+                                           How to access the PC from a struct ucontext)
+                        AC_MSG_RESULT([$pc_field])
+                        pc_field_found=true)
+       else     # hope some standard header gives it to us
+         AC_TRY_COMPILE([],
+                        [ucontext_t u; return u.$pc_field == 0;],
+                        AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field,
+                                           How to access the PC from a struct ucontext)
+                        AC_MSG_RESULT([$pc_field])
+                        pc_field_found=true)
+       fi
+     fi
+   done
+   if ! $pc_field_found; then
+     pc_fields="           sc_eip"  # OpenBSD (i386)
+     pc_fields="$pc_fields sc_rip"  # OpenBSD (x86_64)
+     for pc_field in $pc_fields; do
+       if ! $pc_field_found; then
+         AC_TRY_COMPILE([#include ],
+                        [ucontext_t u; return u.$pc_field == 0;],
+                        AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field,
+                                           How to access the PC from a struct ucontext)
+                        AC_MSG_RESULT([$pc_field])
+                        pc_field_found=true)
+       fi
+     done
+   fi
+   if ! $pc_field_found; then
+     [$1]
+   fi])
diff --git a/trunk/3rdparty/gperftools-2-fit/m4/program_invocation_name.m4 b/trunk/3rdparty/gperftools-2-fit/m4/program_invocation_name.m4
new file mode 100644
index 000000000..6161f66d2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/m4/program_invocation_name.m4
@@ -0,0 +1,19 @@
+# We need to be careful to avoid having the reference to
+# program_invocation_name optimized out.  We do that by
+# returning the value.
+
+AC_DEFUN([AC_PROGRAM_INVOCATION_NAME],
+  [AC_CACHE_CHECK(
+    for program_invocation_name,
+    ac_cv_have_program_invocation_name,
+    AC_TRY_LINK([extern char* program_invocation_name;],
+	        [return *program_invocation_name;],
+	        [ac_cv_have_program_invocation_name=yes],
+		[ac_cv_have_program_invocation_name=no])
+   )
+   if test "$ac_cv_have_program_invocation_name" = "yes"; then
+     AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME, 1,
+               [define if libc has program_invocation_name])
+   fi
+   ])
+   
diff --git a/trunk/3rdparty/gperftools-2-fit/missing b/trunk/3rdparty/gperftools-2-fit/missing
new file mode 100755
index 000000000..8d0eaad25
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/missing
@@ -0,0 +1,215 @@
+#! /bin/sh
+# Common wrapper for a few potentially missing GNU programs.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1996-2020 Free Software Foundation, Inc.
+# Originally written by Fran,cois Pinard , 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try '$0 --help' for more information"
+  exit 1
+fi
+
+case $1 in
+
+  --is-lightweight)
+    # Used by our autoconf macros to check whether the available missing
+    # script is modern enough.
+    exit 0
+    ;;
+
+  --run)
+    # Back-compat with the calling convention used by older automake.
+    shift
+    ;;
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
+to PROGRAM being missing or too old.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+
+Supported PROGRAM values:
+  aclocal   autoconf  autoheader   autom4te  automake  makeinfo
+  bison     yacc      flex         lex       help2man
+
+Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
+'g' are ignored when checking the name.
+
+Send bug reports to ."
+    exit $?
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing $scriptversion (GNU Automake)"
+    exit $?
+    ;;
+
+  -*)
+    echo 1>&2 "$0: unknown '$1' option"
+    echo 1>&2 "Try '$0 --help' for more information"
+    exit 1
+    ;;
+
+esac
+
+# Run the given program, remember its exit status.
+"$@"; st=$?
+
+# If it succeeded, we are done.
+test $st -eq 0 && exit 0
+
+# Also exit now if we it failed (or wasn't found), and '--version' was
+# passed; such an option is passed most likely to detect whether the
+# program is present and works.
+case $2 in --version|--help) exit $st;; esac
+
+# Exit code 63 means version mismatch.  This often happens when the user
+# tries to use an ancient version of a tool on a file that requires a
+# minimum version.
+if test $st -eq 63; then
+  msg="probably too old"
+elif test $st -eq 127; then
+  # Program was missing.
+  msg="missing on your system"
+else
+  # Program was found and executed, but failed.  Give up.
+  exit $st
+fi
+
+perl_URL=https://www.perl.org/
+flex_URL=https://github.com/westes/flex
+gnu_software_URL=https://www.gnu.org/software
+
+program_details ()
+{
+  case $1 in
+    aclocal|automake)
+      echo "The '$1' program is part of the GNU Automake package:"
+      echo "<$gnu_software_URL/automake>"
+      echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/autoconf>"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+    autoconf|autom4te|autoheader)
+      echo "The '$1' program is part of the GNU Autoconf package:"
+      echo "<$gnu_software_URL/autoconf/>"
+      echo "It also requires GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+  esac
+}
+
+give_advice ()
+{
+  # Normalize program name to check for.
+  normalized_program=`echo "$1" | sed '
+    s/^gnu-//; t
+    s/^gnu//; t
+    s/^g//; t'`
+
+  printf '%s\n' "'$1' is $msg."
+
+  configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
+  case $normalized_program in
+    autoconf*)
+      echo "You should only need it if you modified 'configure.ac',"
+      echo "or m4 files included by it."
+      program_details 'autoconf'
+      ;;
+    autoheader*)
+      echo "You should only need it if you modified 'acconfig.h' or"
+      echo "$configure_deps."
+      program_details 'autoheader'
+      ;;
+    automake*)
+      echo "You should only need it if you modified 'Makefile.am' or"
+      echo "$configure_deps."
+      program_details 'automake'
+      ;;
+    aclocal*)
+      echo "You should only need it if you modified 'acinclude.m4' or"
+      echo "$configure_deps."
+      program_details 'aclocal'
+      ;;
+   autom4te*)
+      echo "You might have modified some maintainer files that require"
+      echo "the 'autom4te' program to be rebuilt."
+      program_details 'autom4te'
+      ;;
+    bison*|yacc*)
+      echo "You should only need it if you modified a '.y' file."
+      echo "You may want to install the GNU Bison package:"
+      echo "<$gnu_software_URL/bison/>"
+      ;;
+    lex*|flex*)
+      echo "You should only need it if you modified a '.l' file."
+      echo "You may want to install the Fast Lexical Analyzer package:"
+      echo "<$flex_URL>"
+      ;;
+    help2man*)
+      echo "You should only need it if you modified a dependency" \
+           "of a man page."
+      echo "You may want to install the GNU Help2man package:"
+      echo "<$gnu_software_URL/help2man/>"
+    ;;
+    makeinfo*)
+      echo "You should only need it if you modified a '.texi' file, or"
+      echo "any other file indirectly affecting the aspect of the manual."
+      echo "You might want to install the Texinfo package:"
+      echo "<$gnu_software_URL/texinfo/>"
+      echo "The spurious makeinfo call might also be the consequence of"
+      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
+      echo "want to install GNU make:"
+      echo "<$gnu_software_URL/make/>"
+      ;;
+    *)
+      echo "You might have modified some files without having the proper"
+      echo "tools for further handling them.  Check the 'README' file, it"
+      echo "often tells you about the needed prerequisites for installing"
+      echo "this package.  You may also peek at any GNU archive site, in"
+      echo "case some other package contains this missing '$1' program."
+      ;;
+  esac
+}
+
+give_advice "$1" | sed -e '1s/^/WARNING: /' \
+                       -e '2,$s/^/         /' >&2
+
+# Propagate the correct exit status (expected to be 127 for a program
+# not found, 63 for a program that failed due to version mismatch).
+exit $st
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb.sh b/trunk/3rdparty/gperftools-2-fit/packages/deb.sh
new file mode 100755
index 000000000..31b423c12
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb.sh
@@ -0,0 +1,74 @@
+#!/bin/bash -e
+
+# This takes one commandline argument, the name of the package.  If no
+# name is given, then we'll end up just using the name associated with
+# an arbitrary .tar.gz file in the rootdir.  That's fine: there's probably
+# only one.
+#
+# Run this from the 'packages' directory, just under rootdir
+
+## Set LIB to lib if exporting a library, empty-string else
+LIB=
+#LIB=lib
+
+PACKAGE="$1"
+VERSION="$2"
+
+# We can only build Debian packages, if the Debian build tools are installed
+if [ \! -x /usr/bin/debuild ]; then
+  echo "Cannot find /usr/bin/debuild. Not building Debian packages." 1>&2
+  exit 0
+fi
+
+# Double-check we're in the packages directory, just under rootdir
+if [ \! -r ../Makefile -a \! -r ../INSTALL ]; then
+  echo "Must run $0 in the 'packages' directory, under the root directory." 1>&2
+  echo "Also, you must run \"make dist\" before running this script." 1>&2
+  exit 0
+fi
+
+# Find the top directory for this package
+topdir="${PWD%/*}"
+
+# Find the tar archive built by "make dist"
+archive="${PACKAGE}-${VERSION}"
+archive_with_underscore="${PACKAGE}_${VERSION}"
+if [ -z "${archive}" ]; then
+  echo "Cannot find ../$PACKAGE*.tar.gz. Run \"make dist\" first." 1>&2
+  exit 0
+fi
+
+# Create a pristine directory for building the Debian package files
+trap 'rm -rf '`pwd`/tmp'; exit $?' EXIT SIGHUP SIGINT SIGTERM
+
+rm -rf tmp
+mkdir -p tmp
+cd tmp
+
+# Debian has very specific requirements about the naming of build
+# directories, and tar archives. It also wants to write all generated
+# packages to the parent of the source directory. We accommodate these
+# requirements by building directly from the tar file.
+ln -s "${topdir}/${archive}.tar.gz" "${LIB}${archive}.orig.tar.gz"
+# Some version of debuilder want foo.orig.tar.gz with _ between versions.
+ln -s "${topdir}/${archive}.tar.gz" "${LIB}${archive_with_underscore}.orig.tar.gz"
+tar zfx "${LIB}${archive}.orig.tar.gz"
+[ -n "${LIB}" ] && mv "${archive}" "${LIB}${archive}"
+cd "${LIB}${archive}"
+# This is one of those 'specific requirements': where the deb control files live
+cp -a "packages/deb" "debian"
+
+# Now, we can call Debian's standard build tool
+debuild -uc -us
+cd ../..                            # get back to the original top-level dir
+
+# We'll put the result in a subdirectory that's named after the OS version
+# we've made this .deb file for.
+destdir="debian-$(cat /etc/debian_version 2>/dev/null || echo UNKNOWN)"
+
+rm -rf "$destdir"
+mkdir -p "$destdir"
+mv $(find tmp -mindepth 1 -maxdepth 1 -type f) "$destdir"
+
+echo
+echo "The Debian package files are located in $PWD/$destdir"
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/README b/trunk/3rdparty/gperftools-2-fit/packages/deb/README
new file mode 100644
index 000000000..57becfda7
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/README
@@ -0,0 +1,7 @@
+The list of files here isn't complete.  For a step-by-step guide on
+how to set this package up correctly, check out
+    http://www.debian.org/doc/maint-guide/
+
+Most of the files that are in this directory are boilerplate.
+However, you may need to change the list of binary-arch dependencies
+in 'rules'.
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/changelog b/trunk/3rdparty/gperftools-2-fit/packages/deb/changelog
new file mode 100644
index 000000000..d67df6113
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/changelog
@@ -0,0 +1,208 @@
+gperftools (2.1-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- gperftools Contributors   Tue, 30 Jul 2013 11:51:13 +0300
+
+gperftools (2.0.99-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- gperftools Contributors   Sat, 20 Jul 2013 14:21:10 -0700
+
+gperftools (2.0-1) unstable; urgency=low
+
+  * New upstream release.
+  * Package renamed from google-perftools to gperftools.
+
+ -- Google Inc. and others   Fri, 03 Feb 2012 15:40:45 -0800
+
+google-perftools (1.10-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Tue, 31 Jan 2012 10:43:50 -0800
+
+google-perftools (1.9-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Thu, 22 Dec 2011 16:22:45 -0800
+
+google-perftools (1.8-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Fri, 15 Jul 2011 16:10:51 -0700
+
+google-perftools (1.7-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Fri, 04 Feb 2011 15:54:31 -0800
+
+google-perftools (1.6-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Thu, 05 Aug 2010 12:48:03 -0700
+
+google-perftools (1.5-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Tue, 19 Jan 2010 14:46:12 -0800
+
+google-perftools (1.4-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Thu, 10 Sep 2009 13:51:15 -0700
+
+google-perftools (1.3-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Tue, 09 Jun 2009 18:19:06 -0700
+
+google-perftools (1.2-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Fri, 17 Apr 2009 16:40:48 -0700
+
+google-perftools (1.1-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Wed, 11 Mar 2009 11:25:34 -0700
+
+google-perftools (1.0-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Tue, 06 Jan 2009 13:58:56 -0800
+	
+google-perftools (1.0rc1-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Thu, 11 Dec 2008 16:01:32 -0800
+	
+google-perftools (0.99.1-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Sat, 20 Sep 2008 09:37:18 -0700
+	
+google-perftools (0.99-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Thu, 18 Sep 2008 16:00:27 -0700
+	
+google-perftools (0.98-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Mon, 09 Jun 2008 16:47:03 -0700
+	
+google-perftools (0.97-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Mon, 21 Apr 2008 15:20:52 -0700
+	
+google-perftools (0.96-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Tue, 18 Mar 2008 14:30:44 -0700
+	
+google-perftools (0.95-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Tue, 12 Feb 2008 12:28:32 -0800
+
+google-perftools (0.94-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Thu, 29 Nov 2007 07:59:43 -0800
+
+google-perftools (0.93-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Fri, 17 Aug 2007 12:32:56 -0700
+
+google-perftools (0.92-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Tue, 17 Jul 2007 22:26:27 -0700
+
+google-perftools (0.91-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Wed, 18 Apr 2007 16:43:55 -0700
+
+google-perftools (0.90-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Fri, 13 Apr 2007 14:50:51 -0700
+
+google-perftools (0.8-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Wed, 14 Jun 2006 15:11:14 -0700
+
+google-perftools (0.7-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Thu, 13 Apr 2006 20:59:09 -0700
+
+google-perftools (0.6-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Fri, 27 Jan 2006 14:04:27 -0800
+
+google-perftools (0.5-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Mon, Nov 14 17:28:59 2005 -0800
+
+google-perftools (0.4-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Wed, 26 Oct 2005 15:19:16 -0700
+
+google-perftools (0.3-1) unstable; urgency=low
+
+  * New upstream release.
+  
+ -- Google Inc.   Fri, 24 Jun 2005 18:02:26 -0700
+
+google-perftools (0.2-1) unstable; urgency=low
+
+  * New upstream release.
+
+ -- Google Inc.   Tue, 31 May 2005 08:14:38 -0700
+
+google-perftools (0.1-1) unstable; urgency=low
+
+  * Initial release.
+    The google-perftools package contains some utilities to improve
+    and analyze the performance of C++ programs.  This includes an
+    optimized thread-caching malloc() and cpu and heap profiling
+    utilities.
+
+ -- Google Inc.   Fri, 11 Mar 2005 08:07:33 -0800
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/compat b/trunk/3rdparty/gperftools-2-fit/packages/deb/compat
new file mode 100644
index 000000000..b8626c4cf
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/compat
@@ -0,0 +1 @@
+4
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/control b/trunk/3rdparty/gperftools-2-fit/packages/deb/control
new file mode 100644
index 000000000..37c34a518
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/control
@@ -0,0 +1,25 @@
+Source: gperftools
+Priority: optional
+Maintainer: gperftools Contributors 
+Build-Depends: debhelper (>= 4.0.0), binutils
+Standards-Version: 3.6.1
+
+Package: libgperftools-dev
+Section: libdevel
+Architecture: any
+Depends: libgperftools0 (= ${Source-Version})
+Description: libraries for CPU and heap analysis, plus an efficient thread-caching malloc
+ The gperftools package contains some utilities to improve and
+ analyze the performance of C++ programs.  This includes an optimized
+ thread-caching malloc() and cpu and heap profiling utilities.  The
+ devel package contains static and debug libraries and header files
+ for developing applications that use the gperftools package.
+
+Package: libgperftools0
+Section: libs
+Architecture: any
+Depends: ${shlibs:Depends}
+Description: libraries for CPU and heap analysis, plus an efficient thread-caching malloc
+ The gperftools package contains some utilities to improve and
+ analyze the performance of C++ programs.  This includes an optimized
+ thread-caching malloc() and cpu and heap profiling utilities.
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/copyright b/trunk/3rdparty/gperftools-2-fit/packages/deb/copyright
new file mode 100644
index 000000000..db7c78e36
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/copyright
@@ -0,0 +1,38 @@
+This package was debianized by gperftools Contributors 
+on Sat, 20 Jul 2013 14:21:10 -0700.
+
+It was downloaded from http://code.google.com/p/gperftools/downloads/list
+
+Upstream Author: google-perftools@googlegroups.com
+
+Copyright (c) 2005, Google Inc.
+All rights reserved.
+
+Copyright (c) 2013, gperftools Contributors
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+    * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/docs b/trunk/3rdparty/gperftools-2-fit/packages/deb/docs
new file mode 100644
index 000000000..fc4806f2a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/docs
@@ -0,0 +1,47 @@
+AUTHORS
+COPYING
+ChangeLog
+INSTALL
+NEWS
+README
+TODO
+docs/cpuprofile.html
+docs/cpuprofile-fileformat.html
+docs/designstyle.css
+docs/heap-example1.png
+docs/heap_checker.html
+docs/heapprofile.html
+docs/index.html
+docs/overview.gif
+docs/pageheap.gif
+docs/pprof-test-big.gif
+docs/pprof-test.gif
+docs/pprof-vsnprintf-big.gif
+docs/pprof-vsnprintf.gif
+docs/pprof.1
+docs/pprof_remote_servers.html
+docs/spanmap.gif
+docs/t-test1.times.txt
+docs/tcmalloc-opspercpusec.vs.threads.1024.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.128.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.131072.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.16384.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.2048.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.256.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.32768.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.4096.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.512.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.64.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.65536.bytes.png
+docs/tcmalloc-opspercpusec.vs.threads.8192.bytes.png
+docs/tcmalloc-opspersec.vs.size.1.threads.png
+docs/tcmalloc-opspersec.vs.size.12.threads.png
+docs/tcmalloc-opspersec.vs.size.16.threads.png
+docs/tcmalloc-opspersec.vs.size.2.threads.png
+docs/tcmalloc-opspersec.vs.size.20.threads.png
+docs/tcmalloc-opspersec.vs.size.3.threads.png
+docs/tcmalloc-opspersec.vs.size.4.threads.png
+docs/tcmalloc-opspersec.vs.size.5.threads.png
+docs/tcmalloc-opspersec.vs.size.8.threads.png
+docs/tcmalloc.html
+docs/threadheap.gif
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools-dev.dirs b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools-dev.dirs
new file mode 100644
index 000000000..8f883479b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools-dev.dirs
@@ -0,0 +1,5 @@
+usr/lib
+usr/lib/pkgconfig
+usr/include
+usr/include/google
+usr/include/gperftools
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools-dev.install b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools-dev.install
new file mode 100644
index 000000000..e863529f3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools-dev.install
@@ -0,0 +1,12 @@
+usr/include/google/*
+usr/include/gperftools/*
+usr/lib/lib*.so
+usr/lib/lib*.a
+usr/lib/*.la
+usr/lib/pkgconfig/*.pc
+debian/tmp/usr/include/google/*
+debian/tmp/usr/include/gperftools/*
+debian/tmp/usr/lib/lib*.so
+debian/tmp/usr/lib/lib*.a
+debian/tmp/usr/lib/*.la
+debian/tmp/usr/lib/pkgconfig/*.pc
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.dirs b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.dirs
new file mode 100644
index 000000000..14f5b95d7
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.dirs
@@ -0,0 +1,2 @@
+usr/lib
+usr/bin
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.install b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.install
new file mode 100644
index 000000000..047eed5c6
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.install
@@ -0,0 +1,4 @@
+usr/lib/lib*.so.*
+usr/bin/pprof*
+debian/tmp/usr/lib/lib*.so.*
+debian/tmp/usr/bin/pprof*
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.manpages b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.manpages
new file mode 100644
index 000000000..8ecbfc4aa
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/libgperftools0.manpages
@@ -0,0 +1 @@
+docs/pprof.1
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/deb/rules b/trunk/3rdparty/gperftools-2-fit/packages/deb/rules
new file mode 100755
index 000000000..f520befd2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/deb/rules
@@ -0,0 +1,117 @@
+#!/usr/bin/make -f
+# -*- makefile -*-
+# Sample debian/rules that uses debhelper.
+# This file was originally written by Joey Hess and Craig Small.
+# As a special exception, when this file is copied by dh-make into a
+# dh-make output file, you may use that output file without restriction.
+# This special exception was added by Craig Small in version 0.37 of dh-make.
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+
+
+# These are used for cross-compiling and for saving the configure script
+# from having to guess our platform (since we know it already)
+DEB_HOST_GNU_TYPE   ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
+DEB_BUILD_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
+
+
+CFLAGS = -Wall -g
+
+ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
+	CFLAGS += -O0
+else
+	CFLAGS += -O2
+endif
+ifeq (,$(findstring nostrip,$(DEB_BUILD_OPTIONS)))
+	INSTALL_PROGRAM += -s
+endif
+
+# shared library versions, option 1
+#version=2.0.5
+#major=2
+# option 2, assuming the library is created as src/.libs/libfoo.so.2.0.5 or so
+version=`ls src/.libs/lib*.so.* | \
+ awk '{if (match($$0,/[0-9]+\.[0-9]+\.[0-9]+$$/)) print substr($$0,RSTART)}'`
+major=`ls src/.libs/lib*.so.* | \
+ awk '{if (match($$0,/\.so\.[0-9]+$$/)) print substr($$0,RSTART+4)}'`
+
+config.status: configure
+	dh_testdir
+	# Add here commands to configure the package.
+	CFLAGS="$(CFLAGS)" ./configure --host=$(DEB_HOST_GNU_TYPE) --build=$(DEB_BUILD_GNU_TYPE) --prefix=/usr --mandir=\$${prefix}/share/man --infodir=\$${prefix}/share/info
+
+
+build: build-stamp
+build-stamp:  config.status
+	dh_testdir
+
+	# Add here commands to compile the package.
+	$(MAKE)
+
+	touch build-stamp
+
+clean:
+	dh_testdir
+	dh_testroot
+	rm -f build-stamp 
+
+	# Add here commands to clean up after the build process.
+	-$(MAKE) distclean
+ifneq "$(wildcard /usr/share/misc/config.sub)" ""
+	cp -f /usr/share/misc/config.sub config.sub
+endif
+ifneq "$(wildcard /usr/share/misc/config.guess)" ""
+	cp -f /usr/share/misc/config.guess config.guess
+endif
+
+
+	dh_clean 
+
+install: build
+	dh_testdir
+	dh_testroot
+	dh_clean -k 
+	dh_installdirs
+
+	# Add here commands to install the package into debian/tmp
+	$(MAKE) install DESTDIR=$(CURDIR)/debian/tmp
+
+
+# Build architecture-independent files here.
+binary-indep: build install
+# We have nothing to do by default.
+
+# Build architecture-dependent files here.
+binary-arch: build install
+	dh_testdir
+	dh_testroot
+	dh_installchangelogs ChangeLog
+	dh_installdocs
+	dh_installexamples
+	dh_install --sourcedir=debian/tmp
+#	dh_installmenu
+#	dh_installdebconf	
+#	dh_installlogrotate
+#	dh_installemacsen
+#	dh_installpam
+#	dh_installmime
+#	dh_installinit
+#	dh_installcron
+#	dh_installinfo
+	dh_installman
+	dh_link
+	dh_strip
+	dh_compress
+	dh_fixperms
+#	dh_perl
+#	dh_python
+	dh_makeshlibs
+	dh_installdeb
+	dh_shlibdeps
+	dh_gencontrol
+	dh_md5sums
+	dh_builddeb
+
+binary: binary-indep binary-arch
+.PHONY: build clean binary-indep binary-arch binary install 
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/rpm.sh b/trunk/3rdparty/gperftools-2-fit/packages/rpm.sh
new file mode 100755
index 000000000..448a0327f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/rpm.sh
@@ -0,0 +1,86 @@
+#!/bin/sh -e
+
+# Run this from the 'packages' directory, just under rootdir
+
+# We can only build rpm packages, if the rpm build tools are installed
+if [ \! -x /usr/bin/rpmbuild ]
+then
+  echo "Cannot find /usr/bin/rpmbuild. Not building an rpm." 1>&2
+  exit 0
+fi
+
+# Check the commandline flags
+PACKAGE="$1"
+VERSION="$2"
+fullname="${PACKAGE}-${VERSION}"
+archive=../$fullname.tar.gz
+
+if [ -z "$1" -o -z "$2" ]
+then
+  echo "Usage: $0  " 1>&2
+  exit 0
+fi
+
+# Double-check we're in the packages directory, just under rootdir
+if [ \! -r ../Makefile -a \! -r ../INSTALL ]
+then
+  echo "Must run $0 in the 'packages' directory, under the root directory." 1>&2
+  echo "Also, you must run \"make dist\" before running this script." 1>&2
+  exit 0
+fi
+
+if [ \! -r "$archive" ]
+then
+  echo "Cannot find $archive. Run \"make dist\" first." 1>&2
+  exit 0
+fi
+
+# Create the directory where the input lives, and where the output should live
+RPM_SOURCE_DIR="/tmp/rpmsource-$fullname"
+RPM_BUILD_DIR="/tmp/rpmbuild-$fullname"
+
+trap 'rm -rf $RPM_SOURCE_DIR $RPM_BUILD_DIR; exit $?' EXIT SIGHUP SIGINT SIGTERM
+
+rm -rf "$RPM_SOURCE_DIR" "$RPM_BUILD_DIR"
+mkdir "$RPM_SOURCE_DIR"
+mkdir "$RPM_BUILD_DIR"
+
+cp "$archive" "$RPM_SOURCE_DIR"
+
+# rpmbuild -- as far as I can tell -- asks the OS what CPU it has.
+# This may differ from what kind of binaries gcc produces.  dpkg
+# does a better job of this, so if we can run 'dpkg --print-architecture'
+# to get the build CPU, we use that in preference of the rpmbuild
+# default.
+target=`dpkg --print-architecture 2>/dev/null || echo ""`
+if [ -n "$target" ]
+then
+   target=" --target $target"
+fi
+
+rpmbuild -bb rpm/rpm.spec $target \
+  --define "NAME $PACKAGE" \
+  --define "VERSION $VERSION" \
+  --define "_sourcedir $RPM_SOURCE_DIR" \
+  --define "_builddir $RPM_BUILD_DIR" \
+  --define "_rpmdir $RPM_SOURCE_DIR"
+
+# We put the output in a directory based on what system we've built for
+destdir=rpm-unknown
+if [ -r /etc/issue ]
+then
+   grep "Red Hat.*release 7" /etc/issue >/dev/null 2>&1 && destdir=rh7
+   grep "Red Hat.*release 8" /etc/issue >/dev/null 2>&1 && destdir=rh8
+   grep "Red Hat.*release 9" /etc/issue >/dev/null 2>&1 && destdir=rh9
+   grep "Fedora Core.*release 1" /etc/issue >/dev/null 2>&1 && destdir=fc1
+   grep "Fedora Core.*release 2" /etc/issue >/dev/null 2>&1 && destdir=fc2
+   grep "Fedora Core.*release 3" /etc/issue >/dev/null 2>&1 && destdir=fc3
+fi
+
+rm -rf "$destdir"
+mkdir -p "$destdir"
+# We want to get not only the main package but devel etc, hence the middle *
+mv "$RPM_SOURCE_DIR"/*/"${PACKAGE}"-*"${VERSION}"*.rpm "$destdir"
+
+echo
+echo "The rpm package file(s) are located in $PWD/$destdir"
diff --git a/trunk/3rdparty/gperftools-2-fit/packages/rpm/rpm.spec b/trunk/3rdparty/gperftools-2-fit/packages/rpm/rpm.spec
new file mode 100644
index 000000000..0690e4f6a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/packages/rpm/rpm.spec
@@ -0,0 +1,77 @@
+%define	RELEASE	1
+%define rel     %{?CUSTOM_RELEASE} %{!?CUSTOM_RELEASE:%RELEASE}
+%define	prefix	/usr
+
+Name: %NAME
+Summary: Performance tools for C++
+Version: %VERSION
+Release: %rel
+Group: Development/Libraries
+URL: http://code.google.com/p/gperftools/
+License: BSD
+Vendor: gperftools Contributors
+Packager: gperftools Contributors 
+Source: http://%{NAME}.googlecode.com/files/%{NAME}-%{VERSION}.tar.gz
+Distribution: Redhat 7 and above.
+Buildroot: %{_tmppath}/%{name}-root
+Prefix: %prefix
+
+%description
+The %name packages contains some utilities to improve and analyze the
+performance of C++ programs.  This includes an optimized thread-caching
+malloc() and cpu and heap profiling utilities.
+
+%package devel
+Summary: Performance tools for C++
+Group: Development/Libraries
+Requires: %{NAME} = %{VERSION}
+
+%description devel
+The %name-devel package contains static and debug libraries and header
+files for developing applications that use the %name package.
+
+%changelog
+	* Mon Apr 20 2009  
+	- Change build rule to use a configure line more like '%configure'
+	- Change install to use DESTDIR instead of prefix for configure
+	- Use wildcards for doc/ and lib/ directories
+
+	* Fri Mar 11 2005  
+	- First draft
+
+%prep
+%setup
+
+%build
+# I can't use '% configure', because it defines -m32 which breaks some
+# of the low-level atomicops files in this package.  But I do take
+# as much from % configure (in /usr/lib/rpm/macros) as I can.
+./configure --prefix=%{_prefix} --exec-prefix=%{_exec_prefix} --bindir=%{_bindir} --sbindir=%{_sbindir} --sysconfdir=%{_sysconfdir} --datadir=%{_datadir} --includedir=%{_includedir} --libdir=%{_libdir} --libexecdir=%{_libexecdir} --localstatedir=%{_localstatedir} --sharedstatedir=%{_sharedstatedir} --mandir=%{_mandir} --infodir=%{_infodir}
+make
+
+%install
+rm -rf $RPM_BUILD_ROOT
+make DESTDIR=$RPM_BUILD_ROOT install
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%defattr(-,root,root)
+
+%docdir %{prefix}/share/doc/%{NAME}-%{VERSION}
+%{prefix}/share/doc/%{NAME}-%{VERSION}/*
+
+%{_libdir}/*.so.*
+%{_bindir}/pprof
+%{_mandir}/man1/pprof.1*
+
+%files devel
+%defattr(-,root,root)
+
+%{_includedir}/google
+%{_includedir}/gperftools
+%{_libdir}/*.a
+%{_libdir}/*.la
+%{_libdir}/*.so
+%{_libdir}/pkgconfig/*.pc
diff --git a/trunk/3rdparty/gperftools-2-fit/pprof-symbolize b/trunk/3rdparty/gperftools-2-fit/pprof-symbolize
new file mode 100755
index 000000000..3a816c62e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/pprof-symbolize
@@ -0,0 +1,5580 @@
+#! /usr/bin/env perl
+
+# Copyright (c) 1998-2007, Google Inc.
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# ---
+# Program for printing the profile generated by common/profiler.cc,
+# or by the heap profiler (common/debugallocation.cc)
+#
+# The profile contains a sequence of entries of the form:
+#        
+# This program parses the profile, and generates user-readable
+# output.
+#
+# Examples:
+#
+# % tools/pprof "program" "profile"
+#   Enters "interactive" mode
+#
+# % tools/pprof --text "program" "profile"
+#   Generates one line per procedure
+#
+# % tools/pprof --gv "program" "profile"
+#   Generates annotated call-graph and displays via "gv"
+#
+# % tools/pprof --gv --focus=Mutex "program" "profile"
+#   Restrict to code paths that involve an entry that matches "Mutex"
+#
+# % tools/pprof --gv --focus=Mutex --ignore=string "program" "profile"
+#   Restrict to code paths that involve an entry that matches "Mutex"
+#   and does not match "string"
+#
+# % tools/pprof --list=IBF_CheckDocid "program" "profile"
+#   Generates disassembly listing of all routines with at least one
+#   sample that match the --list= pattern.  The listing is
+#   annotated with the flat and cumulative sample counts at each line.
+#
+# % tools/pprof --disasm=IBF_CheckDocid "program" "profile"
+#   Generates disassembly listing of all routines with at least one
+#   sample that match the --disasm= pattern.  The listing is
+#   annotated with the flat and cumulative sample counts at each PC value.
+#
+# TODO: Use color to indicate files?
+
+use strict;
+use warnings;
+use Getopt::Long;
+use Cwd;
+use POSIX;
+
+my $PPROF_VERSION = "2.0";
+
+# These are the object tools we use which can come from a
+# user-specified location using --tools, from the PPROF_TOOLS
+# environment variable, or from the environment.
+my %obj_tool_map = (
+  "objdump" => "objdump",
+  "nm" => "nm",
+  "addr2line" => "addr2line",
+  "c++filt" => "c++filt",
+  ## ConfigureObjTools may add architecture-specific entries:
+  #"nm_pdb" => "nm-pdb",       # for reading windows (PDB-format) executables
+  #"addr2line_pdb" => "addr2line-pdb",                                # ditto
+  #"otool" => "otool",         # equivalent of objdump on OS X
+);
+# NOTE: these are lists, so you can put in commandline flags if you want.
+my @DOT = ("dot");          # leave non-absolute, since it may be in /usr/local
+my @GV = ("gv");
+my @EVINCE = ("evince");    # could also be xpdf or perhaps acroread
+my @KCACHEGRIND = ("kcachegrind");
+my @PS2PDF = ("ps2pdf");
+# These are used for dynamic profiles
+my @URL_FETCHER = ("curl", "-s");
+
+# These are the web pages that servers need to support for dynamic profiles
+my $HEAP_PAGE = "/pprof/heap";
+my $PROFILE_PAGE = "/pprof/profile";   # must support cgi-param "?seconds=#"
+my $PMUPROFILE_PAGE = "/pprof/pmuprofile(?:\\?.*)?"; # must support cgi-param
+                                                # ?seconds=#&event=x&period=n
+my $GROWTH_PAGE = "/pprof/growth";
+my $CONTENTION_PAGE = "/pprof/contention";
+my $WALL_PAGE = "/pprof/wall(?:\\?.*)?";  # accepts options like namefilter
+my $FILTEREDPROFILE_PAGE = "/pprof/filteredprofile(?:\\?.*)?";
+my $CENSUSPROFILE_PAGE = "/pprof/censusprofile(?:\\?.*)?"; # must support cgi-param
+                                                       # "?seconds=#",
+                                                       # "?tags_regexp=#" and
+                                                       # "?type=#".
+my $SYMBOL_PAGE = "/pprof/symbol";     # must support symbol lookup via POST
+my $PROGRAM_NAME_PAGE = "/pprof/cmdline";
+
+# These are the web pages that can be named on the command line.
+# All the alternatives must begin with /.
+my $PROFILES = "($HEAP_PAGE|$PROFILE_PAGE|$PMUPROFILE_PAGE|" .
+               "$GROWTH_PAGE|$CONTENTION_PAGE|$WALL_PAGE|" .
+               "$FILTEREDPROFILE_PAGE|$CENSUSPROFILE_PAGE)";
+
+# default binary name
+my $UNKNOWN_BINARY = "(unknown)";
+
+# There is a pervasive dependency on the length (in hex characters,
+# i.e., nibbles) of an address, distinguishing between 32-bit and
+# 64-bit profiles.  To err on the safe size, default to 64-bit here:
+my $address_length = 16;
+
+my $dev_null = "/dev/null";
+if (! -e $dev_null && $^O =~ /MSWin/) {    # $^O is the OS perl was built for
+  $dev_null = "nul";
+}
+
+# A list of paths to search for shared object files
+my @prefix_list = ();
+
+# Special routine name that should not have any symbols.
+# Used as separator to parse "addr2line -i" output.
+my $sep_symbol = '_fini';
+my $sep_address = undef;
+
+my @stackTraces;
+
+##### Argument parsing #####
+
+sub usage_string {
+  return < 
+    is a space separated list of profile names.
+$0 [options] 
+    is a list of profile files where each file contains
+   the necessary symbol mappings  as well as profile data (likely generated
+   with --raw).
+$0 [options] 
+    is a remote form.  Symbols are obtained from host:port$SYMBOL_PAGE
+
+   Each name can be:
+   /path/to/profile        - a path to a profile file
+   host:port[/]   - a location of a service to get profile from
+
+   The / can be $HEAP_PAGE, $PROFILE_PAGE, /pprof/pmuprofile,
+                         $GROWTH_PAGE, $CONTENTION_PAGE, /pprof/wall,
+                         $CENSUSPROFILE_PAGE, or /pprof/filteredprofile.
+   For instance:
+     $0 http://myserver.com:80$HEAP_PAGE
+   If / is omitted, the service defaults to $PROFILE_PAGE (cpu profiling).
+$0 --symbols 
+   Maps addresses to symbol names.  In this mode, stdin should be a
+   list of library mappings, in the same format as is found in the heap-
+   and cpu-profile files (this loosely matches that of /proc/self/maps
+   on linux), followed by a list of hex addresses to map, one per line.
+
+   For more help with querying remote servers, including how to add the
+   necessary server-side support code, see this filename (or one like it):
+
+   /usr/doc/gperftools-$PPROF_VERSION/pprof_remote_servers.html
+
+Options:
+   --cum               Sort by cumulative data
+   --base=       Subtract  from  before display
+   --interactive       Run in interactive mode (interactive "help" gives help) [default]
+   --seconds=       Length of time for dynamic profiles [default=30 secs]
+   --add_lib=    Read additional symbols and line info from the given library
+   --lib_prefix=  Comma separated list of library path prefixes
+   --no_strip_temp     Do not strip template arguments from function names
+
+Reporting Granularity:
+   --addresses         Report at address level
+   --lines             Report at source line level
+   --functions         Report at function level [default]
+   --files             Report at source file level
+
+Output type:
+   --text              Generate text report
+   --stacks            Generate stack traces similar to the heap profiler (requires --text)
+   --callgrind         Generate callgrind format to stdout
+   --gv                Generate Postscript and display
+   --evince            Generate PDF and display
+   --web               Generate SVG and display
+   --list=     Generate source listing of matching routines
+   --disasm=   Generate disassembly of matching routines
+   --symbols           Print demangled symbol names found at given addresses
+   --dot               Generate DOT file to stdout
+   --ps                Generate Postscript to stdout
+   --pdf               Generate PDF to stdout
+   --svg               Generate SVG to stdout
+   --gif               Generate GIF to stdout
+   --raw               Generate symbolized pprof data (useful with remote fetch)
+   --collapsed         Generate collapsed stacks for building flame graphs
+                       (see http://www.brendangregg.com/flamegraphs.html)
+
+Heap-Profile Options:
+   --inuse_space       Display in-use (mega)bytes [default]
+   --inuse_objects     Display in-use objects
+   --alloc_space       Display allocated (mega)bytes
+   --alloc_objects     Display allocated objects
+   --show_bytes        Display space in bytes
+   --drop_negative     Ignore negative differences
+
+Contention-profile options:
+   --total_delay       Display total delay at each region [default]
+   --contentions       Display number of delays at each region
+   --mean_delay        Display mean delay at each region
+
+Call-graph Options:
+   --nodecount=     Show at most so many nodes [default=80]
+   --nodefraction=  Hide nodes below *total [default=.005]
+   --edgefraction=  Hide edges below *total [default=.001]
+   --maxdegree=     Max incoming/outgoing edges per node [default=8]
+   --focus=    Focus on nodes matching 
+   --ignore=   Ignore nodes matching 
+   --scale=         Set GV scaling [default=0]
+   --heapcheck         Make nodes with non-0 object counts
+                       (i.e. direct leak generators) more visible
+
+Miscellaneous:
+   --no-auto-signal-frm Automatically drop 2nd frame that is always same (cpu-only)
+                       (assuming that it is artifact of bad stack captures
+                        which include signal handler frames)
+   --show_addresses    Always show addresses when applicable
+   --tools=[,...]   \$PATH for object tool pathnames
+   --test              Run unit tests
+   --help              This message
+   --version           Version information
+
+Environment Variables:
+   PPROF_TMPDIR        Profiles directory. Defaults to \$HOME/pprof
+   PPROF_TOOLS         Prefix for object tools pathnames
+
+Examples:
+
+$0 /bin/ls ls.prof
+                       Enters "interactive" mode
+$0 --text /bin/ls ls.prof
+                       Outputs one line per procedure
+$0 --web /bin/ls ls.prof
+                       Displays annotated call-graph in web browser
+$0 --gv /bin/ls ls.prof
+                       Displays annotated call-graph via 'gv'
+$0 --gv --focus=Mutex /bin/ls ls.prof
+                       Restricts to code paths including a .*Mutex.* entry
+$0 --gv --focus=Mutex --ignore=string /bin/ls ls.prof
+                       Code paths including Mutex but not string
+$0 --list=getdir /bin/ls ls.prof
+                       (Per-line) annotated source listing for getdir()
+$0 --disasm=getdir /bin/ls ls.prof
+                       (Per-PC) annotated disassembly for getdir()
+
+$0 http://localhost:1234/
+                       Enters "interactive" mode
+$0 --text localhost:1234
+                       Outputs one line per procedure for localhost:1234
+$0 --raw localhost:1234 > ./local.raw
+$0 --text ./local.raw
+                       Fetches a remote profile for later analysis and then
+                       analyzes it in text mode.
+EOF
+}
+
+sub version_string {
+  return < \$main::opt_help,
+             "version!"       => \$main::opt_version,
+             "show_addresses!"=> \$main::opt_show_addresses,
+             "no-auto-signal-frm!"=> \$main::opt_no_auto_signal_frames,
+             "cum!"           => \$main::opt_cum,
+             "base=s"         => \$main::opt_base,
+             "seconds=i"      => \$main::opt_seconds,
+             "add_lib=s"      => \$main::opt_lib,
+             "lib_prefix=s"   => \$main::opt_lib_prefix,
+             "functions!"     => \$main::opt_functions,
+             "lines!"         => \$main::opt_lines,
+             "addresses!"     => \$main::opt_addresses,
+             "files!"         => \$main::opt_files,
+             "text!"          => \$main::opt_text,
+             "stacks!"        => \$main::opt_stacks,
+             "callgrind!"     => \$main::opt_callgrind,
+             "list=s"         => \$main::opt_list,
+             "disasm=s"       => \$main::opt_disasm,
+             "symbols!"       => \$main::opt_symbols,
+             "gv!"            => \$main::opt_gv,
+             "evince!"        => \$main::opt_evince,
+             "web!"           => \$main::opt_web,
+             "dot!"           => \$main::opt_dot,
+             "ps!"            => \$main::opt_ps,
+             "pdf!"           => \$main::opt_pdf,
+             "svg!"           => \$main::opt_svg,
+             "gif!"           => \$main::opt_gif,
+             "raw!"           => \$main::opt_raw,
+             "collapsed!"     => \$main::opt_collapsed,
+             "interactive!"   => \$main::opt_interactive,
+             "nodecount=i"    => \$main::opt_nodecount,
+             "nodefraction=f" => \$main::opt_nodefraction,
+             "edgefraction=f" => \$main::opt_edgefraction,
+             "maxdegree=i"    => \$main::opt_maxdegree,
+             "focus=s"        => \$main::opt_focus,
+             "ignore=s"       => \$main::opt_ignore,
+             "scale=i"        => \$main::opt_scale,
+             "heapcheck"      => \$main::opt_heapcheck,
+             "inuse_space!"   => \$main::opt_inuse_space,
+             "inuse_objects!" => \$main::opt_inuse_objects,
+             "alloc_space!"   => \$main::opt_alloc_space,
+             "alloc_objects!" => \$main::opt_alloc_objects,
+             "show_bytes!"    => \$main::opt_show_bytes,
+             "drop_negative!" => \$main::opt_drop_negative,
+             "total_delay!"   => \$main::opt_total_delay,
+             "contentions!"   => \$main::opt_contentions,
+             "mean_delay!"    => \$main::opt_mean_delay,
+             "tools=s"        => \$main::opt_tools,
+             "no_strip_temp!" => \$main::opt_no_strip_temp,
+             "test!"          => \$main::opt_test,
+             "debug!"         => \$main::opt_debug,
+             # Undocumented flags used only by unittests:
+             "test_stride=i"  => \$main::opt_test_stride,
+      ) || usage("Invalid option(s)");
+
+  # Deal with the standard --help and --version
+  if ($main::opt_help) {
+    print usage_string();
+    exit(0);
+  }
+
+  if ($main::opt_version) {
+    print version_string();
+    exit(0);
+  }
+
+  # Disassembly/listing/symbols mode requires address-level info
+  if ($main::opt_disasm || $main::opt_list || $main::opt_symbols) {
+    $main::opt_functions = 0;
+    $main::opt_lines = 0;
+    $main::opt_addresses = 1;
+    $main::opt_files = 0;
+  }
+
+  # Check heap-profiling flags
+  if ($main::opt_inuse_space +
+      $main::opt_inuse_objects +
+      $main::opt_alloc_space +
+      $main::opt_alloc_objects > 1) {
+    usage("Specify at most on of --inuse/--alloc options");
+  }
+
+  # Check output granularities
+  my $grains =
+      $main::opt_functions +
+      $main::opt_lines +
+      $main::opt_addresses +
+      $main::opt_files +
+      0;
+  if ($grains > 1) {
+    usage("Only specify one output granularity option");
+  }
+  if ($grains == 0) {
+    $main::opt_functions = 1;
+  }
+
+  # Check output modes
+  my $modes =
+      $main::opt_text +
+      $main::opt_callgrind +
+      ($main::opt_list eq '' ? 0 : 1) +
+      ($main::opt_disasm eq '' ? 0 : 1) +
+      ($main::opt_symbols == 0 ? 0 : 1) +
+      $main::opt_gv +
+      $main::opt_evince +
+      $main::opt_web +
+      $main::opt_dot +
+      $main::opt_ps +
+      $main::opt_pdf +
+      $main::opt_svg +
+      $main::opt_gif +
+      $main::opt_raw +
+      $main::opt_collapsed +
+      $main::opt_interactive +
+      0;
+  if ($modes > 1) {
+    usage("Only specify one output mode");
+  }
+  if ($modes == 0) {
+    if (-t STDOUT) {  # If STDOUT is a tty, activate interactive mode
+      $main::opt_interactive = 1;
+    } else {
+      $main::opt_text = 1;
+    }
+  }
+
+  if ($main::opt_test) {
+    RunUnitTests();
+    # Should not return
+    exit(1);
+  }
+
+  # Binary name and profile arguments list
+  $main::prog = "";
+  @main::pfile_args = ();
+
+  # Remote profiling without a binary (using $SYMBOL_PAGE instead)
+  if (@ARGV > 0) {
+    if (IsProfileURL($ARGV[0])) {
+      printf STDERR "Using remote profile at $ARGV[0].\n";
+      $main::use_symbol_page = 1;
+    } elsif (IsSymbolizedProfileFile($ARGV[0])) {
+      $main::use_symbolized_profile = 1;
+      $main::prog = $UNKNOWN_BINARY;  # will be set later from the profile file
+    }
+  }
+
+  if ($main::use_symbol_page || $main::use_symbolized_profile) {
+    # We don't need a binary!
+    my %disabled = ('--lines' => $main::opt_lines,
+                    '--disasm' => $main::opt_disasm);
+    for my $option (keys %disabled) {
+      usage("$option cannot be used without a binary") if $disabled{$option};
+    }
+    # Set $main::prog later...
+    scalar(@ARGV) || usage("Did not specify profile file");
+  } elsif ($main::opt_symbols) {
+    # --symbols needs a binary-name (to run nm on, etc) but not profiles
+    $main::prog = shift(@ARGV) || usage("Did not specify program");
+  } else {
+    $main::prog = shift(@ARGV) || usage("Did not specify program");
+    scalar(@ARGV) || usage("Did not specify profile file");
+  }
+
+  # Parse profile file/location arguments
+  foreach my $farg (@ARGV) {
+    if ($farg =~ m/(.*)\@([0-9]+)(|\/.*)$/ ) {
+      my $machine = $1;
+      my $num_machines = $2;
+      my $path = $3;
+      for (my $i = 0; $i < $num_machines; $i++) {
+        unshift(@main::pfile_args, "$i.$machine$path");
+      }
+    } else {
+      unshift(@main::pfile_args, $farg);
+    }
+  }
+
+  if ($main::use_symbol_page) {
+    unless (IsProfileURL($main::pfile_args[0])) {
+      error("The first profile should be a remote form to use $SYMBOL_PAGE\n");
+    }
+    CheckSymbolPage();
+    $main::prog = FetchProgramName();
+  } elsif (!$main::use_symbolized_profile) {  # may not need objtools!
+    ConfigureObjTools($main::prog)
+  }
+
+  # Break the opt_lib_prefix into the prefix_list array
+  @prefix_list = split (',', $main::opt_lib_prefix);
+
+  # Remove trailing / from the prefixes, in the list to prevent
+  # searching things like /my/path//lib/mylib.so
+  foreach (@prefix_list) {
+    s|/+$||;
+  }
+}
+
+sub Main() {
+  Init();
+  $main::collected_profile = undef;
+  @main::profile_files = ();
+  $main::op_time = time();
+
+  # Printing symbols is special and requires a lot less info that most.
+  if ($main::opt_symbols) {
+    PrintSymbols(*STDIN);   # Get /proc/maps and symbols output from stdin
+    return;
+  }
+
+  # Fetch all profile data
+  FetchDynamicProfiles();
+
+  # this will hold symbols that we read from the profile files
+  my $symbol_map = {};
+
+  # Read one profile, pick the last item on the list
+  my $data = ReadProfile($main::prog, pop(@main::profile_files));
+  my $profile = $data->{profile};
+  my $pcs = $data->{pcs};
+  my $libs = $data->{libs};   # Info about main program and shared libraries
+  $symbol_map = MergeSymbols($symbol_map, $data->{symbols});
+
+  # Add additional profiles, if available.
+  if (scalar(@main::profile_files) > 0) {
+    foreach my $pname (@main::profile_files) {
+      my $data2 = ReadProfile($main::prog, $pname);
+      $profile = AddProfile($profile, $data2->{profile});
+      $pcs = AddPcs($pcs, $data2->{pcs});
+      $symbol_map = MergeSymbols($symbol_map, $data2->{symbols});
+    }
+  }
+
+  # Subtract base from profile, if specified
+  if ($main::opt_base ne '') {
+    my $base = ReadProfile($main::prog, $main::opt_base);
+    $profile = SubtractProfile($profile, $base->{profile});
+    $pcs = AddPcs($pcs, $base->{pcs});
+    $symbol_map = MergeSymbols($symbol_map, $base->{symbols});
+  }
+
+  # Get total data in profile
+  my $total = TotalProfile($profile);
+
+  # Collect symbols
+  my $symbols;
+  if ($main::use_symbolized_profile) {
+    $symbols = FetchSymbols($pcs, $symbol_map);
+  } elsif ($main::use_symbol_page) {
+    $symbols = FetchSymbols($pcs);
+  } else {
+    # TODO(csilvers): $libs uses the /proc/self/maps data from profile1,
+    # which may differ from the data from subsequent profiles, especially
+    # if they were run on different machines.  Use appropriate libs for
+    # each pc somehow.
+    $symbols = ExtractSymbols($libs, $pcs);
+  }
+
+  # Remove uniniteresting stack items
+  $profile = RemoveUninterestingFrames($symbols, $profile);
+
+  # Focus?
+  if ($main::opt_focus ne '') {
+    $profile = FocusProfile($symbols, $profile, $main::opt_focus);
+  }
+
+  # Ignore?
+  if ($main::opt_ignore ne '') {
+    $profile = IgnoreProfile($symbols, $profile, $main::opt_ignore);
+  }
+
+  my $calls = ExtractCalls($symbols, $profile);
+
+  # Reduce profiles to required output granularity, and also clean
+  # each stack trace so a given entry exists at most once.
+  my $reduced = ReduceProfile($symbols, $profile);
+
+  # Get derived profiles
+  my $flat = FlatProfile($reduced);
+  my $cumulative = CumulativeProfile($reduced);
+
+  # Print
+  if (!$main::opt_interactive) {
+    if ($main::opt_disasm) {
+      PrintDisassembly($libs, $flat, $cumulative, $main::opt_disasm);
+    } elsif ($main::opt_list) {
+      PrintListing($total, $libs, $flat, $cumulative, $main::opt_list, 0);
+    } elsif ($main::opt_text) {
+      # Make sure the output is empty when have nothing to report
+      # (only matters when --heapcheck is given but we must be
+      # compatible with old branches that did not pass --heapcheck always):
+      if ($total != 0) {
+        printf("Total: %s %s\n", Unparse($total), Units());
+      }
+      if ($main::opt_stacks) {
+        printf("Stacks:\n\n");
+        PrintStacksForText($symbols, $profile);
+      }
+      PrintText($symbols, $flat, $cumulative, -1);
+    } elsif ($main::opt_raw) {
+      PrintSymbolizedProfile($symbols, $profile, $main::prog);
+    } elsif ($main::opt_collapsed) {
+      PrintCollapsedStacks($symbols, $profile);
+    } elsif ($main::opt_callgrind) {
+      PrintCallgrind($calls);
+    } else {
+      if (PrintDot($main::prog, $symbols, $profile, $flat, $cumulative, $total)) {
+        if ($main::opt_gv) {
+          RunGV(TempName($main::next_tmpfile, "ps"), "");
+        } elsif ($main::opt_evince) {
+          RunEvince(TempName($main::next_tmpfile, "pdf"), "");
+        } elsif ($main::opt_web) {
+          my $tmp = TempName($main::next_tmpfile, "svg");
+          RunWeb($tmp);
+          # The command we run might hand the file name off
+          # to an already running browser instance and then exit.
+          # Normally, we'd remove $tmp on exit (right now),
+          # but fork a child to remove $tmp a little later, so that the
+          # browser has time to load it first.
+          delete $main::tempnames{$tmp};
+          if (fork() == 0) {
+            sleep 5;
+            unlink($tmp);
+            exit(0);
+          }
+        }
+      } else {
+        cleanup();
+        exit(1);
+      }
+    }
+  } else {
+    InteractiveMode($profile, $symbols, $libs, $total);
+  }
+
+  cleanup();
+  exit(0);
+}
+
+##### Entry Point #####
+
+Main();
+
+# Temporary code to detect if we're running on a Goobuntu system.
+# These systems don't have the right stuff installed for the special
+# Readline libraries to work, so as a temporary workaround, we default
+# to using the normal stdio code, rather than the fancier readline-based
+# code
+sub ReadlineMightFail {
+  if (-e '/lib/libtermcap.so.2') {
+    return 0;  # libtermcap exists, so readline should be okay
+  } else {
+    return 1;
+  }
+}
+
+sub RunGV {
+  my $fname = shift;
+  my $bg = shift;       # "" or " &" if we should run in background
+  if (!system(ShellEscape(@GV, "--version") . " >$dev_null 2>&1")) {
+    # Options using double dash are supported by this gv version.
+    # Also, turn on noantialias to better handle bug in gv for
+    # postscript files with large dimensions.
+    # TODO: Maybe we should not pass the --noantialias flag
+    # if the gv version is known to work properly without the flag.
+    system(ShellEscape(@GV, "--scale=$main::opt_scale", "--noantialias", $fname)
+           . $bg);
+  } else {
+    # Old gv version - only supports options that use single dash.
+    print STDERR ShellEscape(@GV, "-scale", $main::opt_scale) . "\n";
+    system(ShellEscape(@GV, "-scale", "$main::opt_scale", $fname) . $bg);
+  }
+}
+
+sub RunEvince {
+  my $fname = shift;
+  my $bg = shift;       # "" or " &" if we should run in background
+  system(ShellEscape(@EVINCE, $fname) . $bg);
+}
+
+sub RunWeb {
+  my $fname = shift;
+  print STDERR "Loading web page file:///$fname\n";
+
+  if (`uname` =~ /Darwin/) {
+    # OS X: open will use standard preference for SVG files.
+    system("/usr/bin/open", $fname);
+    return;
+  }
+
+  if (`uname` =~ /MINGW/) {
+    # Windows(MinGW): open will use standard preference for SVG files.
+    system("cmd", "/c", "start", $fname);
+    return;
+  }
+
+  # Some kind of Unix; try generic symlinks, then specific browsers.
+  # (Stop once we find one.)
+  # Works best if the browser is already running.
+  my @alt = (
+    "/etc/alternatives/gnome-www-browser",
+    "/etc/alternatives/x-www-browser",
+    "google-chrome",
+    "firefox",
+  );
+  foreach my $b (@alt) {
+    if (system($b, $fname) == 0) {
+      return;
+    }
+  }
+
+  print STDERR "Could not load web browser.\n";
+}
+
+sub RunKcachegrind {
+  my $fname = shift;
+  my $bg = shift;       # "" or " &" if we should run in background
+  print STDERR "Starting '@KCACHEGRIND " . $fname . $bg . "'\n";
+  system(ShellEscape(@KCACHEGRIND, $fname) . $bg);
+}
+
+
+##### Interactive helper routines #####
+
+sub InteractiveMode {
+  $| = 1;  # Make output unbuffered for interactive mode
+  my ($orig_profile, $symbols, $libs, $total) = @_;
+
+  print STDERR "Welcome to pprof!  For help, type 'help'.\n";
+
+  # Use ReadLine if it's installed and input comes from a console.
+  if ( -t STDIN &&
+       !ReadlineMightFail() &&
+       defined(eval {require Term::ReadLine}) ) {
+    my $term = new Term::ReadLine 'pprof';
+    while ( defined ($_ = $term->readline('(pprof) '))) {
+      $term->addhistory($_) if /\S/;
+      if (!InteractiveCommand($orig_profile, $symbols, $libs, $total, $_)) {
+        last;    # exit when we get an interactive command to quit
+      }
+    }
+  } else {       # don't have readline
+    while (1) {
+      print STDERR "(pprof) ";
+      $_ = ;
+      last if ! defined $_ ;
+      s/\r//g;         # turn windows-looking lines into unix-looking lines
+
+      # Save some flags that might be reset by InteractiveCommand()
+      my $save_opt_lines = $main::opt_lines;
+
+      if (!InteractiveCommand($orig_profile, $symbols, $libs, $total, $_)) {
+        last;    # exit when we get an interactive command to quit
+      }
+
+      # Restore flags
+      $main::opt_lines = $save_opt_lines;
+    }
+  }
+}
+
+# Takes two args: orig profile, and command to run.
+# Returns 1 if we should keep going, or 0 if we were asked to quit
+sub InteractiveCommand {
+  my($orig_profile, $symbols, $libs, $total, $command) = @_;
+  $_ = $command;                # just to make future m//'s easier
+  if (!defined($_)) {
+    print STDERR "\n";
+    return 0;
+  }
+  if (m/^\s*quit/) {
+    return 0;
+  }
+  if (m/^\s*help/) {
+    InteractiveHelpMessage();
+    return 1;
+  }
+  # Clear all the mode options -- mode is controlled by "$command"
+  $main::opt_text = 0;
+  $main::opt_callgrind = 0;
+  $main::opt_disasm = 0;
+  $main::opt_list = 0;
+  $main::opt_gv = 0;
+  $main::opt_evince = 0;
+  $main::opt_cum = 0;
+
+  if (m/^\s*(text|top)(\d*)\s*(.*)/) {
+    $main::opt_text = 1;
+
+    my $line_limit = ($2 ne "") ? int($2) : 10;
+
+    my $routine;
+    my $ignore;
+    ($routine, $ignore) = ParseInteractiveArgs($3);
+
+    my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore);
+    my $reduced = ReduceProfile($symbols, $profile);
+
+    # Get derived profiles
+    my $flat = FlatProfile($reduced);
+    my $cumulative = CumulativeProfile($reduced);
+
+    PrintText($symbols, $flat, $cumulative, $line_limit);
+    return 1;
+  }
+  if (m/^\s*callgrind\s*([^ \n]*)/) {
+    $main::opt_callgrind = 1;
+
+    # Get derived profiles
+    my $calls = ExtractCalls($symbols, $orig_profile);
+    my $filename = $1;
+    if ( $1 eq '' ) {
+      $filename = TempName($main::next_tmpfile, "callgrind");
+    }
+    PrintCallgrind($calls, $filename);
+    if ( $1 eq '' ) {
+      RunKcachegrind($filename, " & ");
+      $main::next_tmpfile++;
+    }
+
+    return 1;
+  }
+  if (m/^\s*(web)?list\s*(.+)/) {
+    my $html = (defined($1) && ($1 eq "web"));
+    $main::opt_list = 1;
+
+    my $routine;
+    my $ignore;
+    ($routine, $ignore) = ParseInteractiveArgs($2);
+
+    my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore);
+    my $reduced = ReduceProfile($symbols, $profile);
+
+    # Get derived profiles
+    my $flat = FlatProfile($reduced);
+    my $cumulative = CumulativeProfile($reduced);
+
+    PrintListing($total, $libs, $flat, $cumulative, $routine, $html);
+    return 1;
+  }
+  if (m/^\s*disasm\s*(.+)/) {
+    $main::opt_disasm = 1;
+
+    my $routine;
+    my $ignore;
+    ($routine, $ignore) = ParseInteractiveArgs($1);
+
+    # Process current profile to account for various settings
+    my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore);
+    my $reduced = ReduceProfile($symbols, $profile);
+
+    # Get derived profiles
+    my $flat = FlatProfile($reduced);
+    my $cumulative = CumulativeProfile($reduced);
+
+    PrintDisassembly($libs, $flat, $cumulative, $routine);
+    return 1;
+  }
+  if (m/^\s*(gv|web|evince)\s*(.*)/) {
+    $main::opt_gv = 0;
+    $main::opt_evince = 0;
+    $main::opt_web = 0;
+    if ($1 eq "gv") {
+      $main::opt_gv = 1;
+    } elsif ($1 eq "evince") {
+      $main::opt_evince = 1;
+    } elsif ($1 eq "web") {
+      $main::opt_web = 1;
+    }
+
+    my $focus;
+    my $ignore;
+    ($focus, $ignore) = ParseInteractiveArgs($2);
+
+    # Process current profile to account for various settings
+    my $profile = ProcessProfile($total, $orig_profile, $symbols,
+                                 $focus, $ignore);
+    my $reduced = ReduceProfile($symbols, $profile);
+
+    # Get derived profiles
+    my $flat = FlatProfile($reduced);
+    my $cumulative = CumulativeProfile($reduced);
+
+    if (PrintDot($main::prog, $symbols, $profile, $flat, $cumulative, $total)) {
+      if ($main::opt_gv) {
+        RunGV(TempName($main::next_tmpfile, "ps"), " &");
+      } elsif ($main::opt_evince) {
+        RunEvince(TempName($main::next_tmpfile, "pdf"), " &");
+      } elsif ($main::opt_web) {
+        RunWeb(TempName($main::next_tmpfile, "svg"));
+      }
+      $main::next_tmpfile++;
+    }
+    return 1;
+  }
+  if (m/^\s*$/) {
+    return 1;
+  }
+  print STDERR "Unknown command: try 'help'.\n";
+  return 1;
+}
+
+
+sub ProcessProfile {
+  my $total_count = shift;
+  my $orig_profile = shift;
+  my $symbols = shift;
+  my $focus = shift;
+  my $ignore = shift;
+
+  # Process current profile to account for various settings
+  my $profile = $orig_profile;
+  printf("Total: %s %s\n", Unparse($total_count), Units());
+  if ($focus ne '') {
+    $profile = FocusProfile($symbols, $profile, $focus);
+    my $focus_count = TotalProfile($profile);
+    printf("After focusing on '%s': %s %s of %s (%0.1f%%)\n",
+           $focus,
+           Unparse($focus_count), Units(),
+           Unparse($total_count), ($focus_count*100.0) / $total_count);
+  }
+  if ($ignore ne '') {
+    $profile = IgnoreProfile($symbols, $profile, $ignore);
+    my $ignore_count = TotalProfile($profile);
+    printf("After ignoring '%s': %s %s of %s (%0.1f%%)\n",
+           $ignore,
+           Unparse($ignore_count), Units(),
+           Unparse($total_count),
+           ($ignore_count*100.0) / $total_count);
+  }
+
+  return $profile;
+}
+
+sub InteractiveHelpMessage {
+  print STDERR <{$k};
+    my @addrs = split(/\n/, $k);
+    if ($#addrs >= 0) {
+      my $depth = $#addrs + 1;
+      # int(foo / 2**32) is the only reliable way to get rid of bottom
+      # 32 bits on both 32- and 64-bit systems.
+      if ($big_endian) {
+        print pack('L*', int($count / 2**32), $count & 0xFFFFFFFF);
+        print pack('L*', int($depth / 2**32), $depth & 0xFFFFFFFF);
+      }
+      else {
+        print pack('L*', $count & 0xFFFFFFFF, int($count / 2**32));
+        print pack('L*', $depth & 0xFFFFFFFF, int($depth / 2**32));
+      }
+
+      foreach my $full_addr (@addrs) {
+        my $addr = $full_addr;
+        $addr =~ s/0x0*//;  # strip off leading 0x, zeroes
+        if (length($addr) > 16) {
+          print STDERR "Invalid address in profile: $full_addr\n";
+          next;
+        }
+        my $low_addr = substr($addr, -8);       # get last 8 hex chars
+        my $high_addr = substr($addr, -16, 8);  # get up to 8 more hex chars
+        if ($big_endian) {
+          print pack('L*', hex('0x' . $high_addr), hex('0x' . $low_addr));
+        }
+        else {
+          print pack('L*', hex('0x' . $low_addr), hex('0x' . $high_addr));
+        }
+      }
+    }
+  }
+}
+
+# Print symbols and profile data
+sub PrintSymbolizedProfile {
+  my $symbols = shift;
+  my $profile = shift;
+  my $prog = shift;
+
+  $SYMBOL_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $symbol_marker = $&;
+
+  print '--- ', $symbol_marker, "\n";
+  if (defined($prog)) {
+    print 'binary=', $prog, "\n";
+  }
+  while (my ($pc, $name) = each(%{$symbols})) {
+    my $sep = ' ';
+    print '0x', $pc;
+    # We have a list of function names, which include the inlined
+    # calls.  They are separated (and terminated) by --, which is
+    # illegal in function names.
+    for (my $j = 2; $j <= $#{$name}; $j += 3) {
+      print $sep, $name->[$j];
+      $sep = '--';
+    }
+    print "\n";
+  }
+  print '---', "\n";
+
+  $PROFILE_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $profile_marker = $&;
+  print '--- ', $profile_marker, "\n";
+  if (defined($main::collected_profile)) {
+    # if used with remote fetch, simply dump the collected profile to output.
+    open(SRC, "<$main::collected_profile");
+    while () {
+      print $_;
+    }
+    close(SRC);
+  } else {
+    # dump a cpu-format profile to standard out
+    PrintProfileData($profile);
+  }
+}
+
+# Print text output
+sub PrintText {
+  my $symbols = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $line_limit = shift;
+
+  if ($main::opt_stacks && @stackTraces) {
+      foreach (sort { (split " ", $b)[1] <=> (split " ", $a)[1]; } @stackTraces) {
+	  print "$_\n" if $main::opt_debug;
+	  my ($n1, $s1, $n2, $s2, @addrs) = split;
+	  print "Leak of $s1 bytes in $n1 objects allocated from:\n";
+	  foreach my $pcstr (@addrs) {
+	      $pcstr =~ s/^0x//;
+	      my $sym;
+	      if (! defined $symbols->{$pcstr}) {
+		  $sym = "unknown";
+	      } else {
+		  $sym = "$symbols->{$pcstr}[0] $symbols->{$pcstr}[1]";
+	      }
+	      print "\t@ $pcstr $sym\n";
+	  }
+      }
+      print "\n";
+  }
+
+  my $total = TotalProfile($flat);
+
+  # Which profile to sort by?
+  my $s = $main::opt_cum ? $cumulative : $flat;
+
+  my $running_sum = 0;
+  my $lines = 0;
+  foreach my $k (sort { GetEntry($s, $b) <=> GetEntry($s, $a) || $a cmp $b }
+                 keys(%{$cumulative})) {
+    my $f = GetEntry($flat, $k);
+    my $c = GetEntry($cumulative, $k);
+    $running_sum += $f;
+
+    my $sym = $k;
+    if (exists($symbols->{$k})) {
+      $sym = $symbols->{$k}->[0] . " " . $symbols->{$k}->[1];
+      if ($main::opt_addresses) {
+        $sym = $k . " " . $sym;
+      }
+    }
+
+    if ($f != 0 || $c != 0) {
+      printf("%8s %6s %6s %8s %6s %s\n",
+             Unparse($f),
+             Percent($f, $total),
+             Percent($running_sum, $total),
+             Unparse($c),
+             Percent($c, $total),
+             $sym);
+    }
+    $lines++;
+    last if ($line_limit >= 0 && $lines >= $line_limit);
+  }
+}
+
+# Callgrind format has a compression for repeated function and file
+# names.  You show the name the first time, and just use its number
+# subsequently.  This can cut down the file to about a third or a
+# quarter of its uncompressed size.  $key and $val are the key/value
+# pair that would normally be printed by callgrind; $map is a map from
+# value to number.
+sub CompressedCGName {
+  my($key, $val, $map) = @_;
+  my $idx = $map->{$val};
+  # For very short keys, providing an index hurts rather than helps.
+  if (length($val) <= 3) {
+    return "$key=$val\n";
+  } elsif (defined($idx)) {
+    return "$key=($idx)\n";
+  } else {
+    # scalar(keys $map) gives the number of items in the map.
+    $idx = scalar(keys(%{$map})) + 1;
+    $map->{$val} = $idx;
+    return "$key=($idx) $val\n";
+  }
+}
+
+# Print the call graph in a way that's suiteable for callgrind.
+sub PrintCallgrind {
+  my $calls = shift;
+  my $filename;
+  my %filename_to_index_map;
+  my %fnname_to_index_map;
+
+  if ($main::opt_interactive) {
+    $filename = shift;
+    print STDERR "Writing callgrind file to '$filename'.\n"
+  } else {
+    $filename = "&STDOUT";
+  }
+  open(CG, ">$filename");
+  print CG ("events: Hits\n\n");
+  foreach my $call ( map { $_->[0] }
+                     sort { $a->[1] cmp $b ->[1] ||
+                            $a->[2] <=> $b->[2] }
+                     map { /([^:]+):(\d+):([^ ]+)( -> ([^:]+):(\d+):(.+))?/;
+                           [$_, $1, $2] }
+                     keys %$calls ) {
+    my $count = int($calls->{$call});
+    $call =~ /([^:]+):(\d+):([^ ]+)( -> ([^:]+):(\d+):(.+))?/;
+    my ( $caller_file, $caller_line, $caller_function,
+         $callee_file, $callee_line, $callee_function ) =
+       ( $1, $2, $3, $5, $6, $7 );
+
+    # TODO(csilvers): for better compression, collect all the
+    # caller/callee_files and functions first, before printing
+    # anything, and only compress those referenced more than once.
+    print CG CompressedCGName("fl", $caller_file, \%filename_to_index_map);
+    print CG CompressedCGName("fn", $caller_function, \%fnname_to_index_map);
+    if (defined $6) {
+      print CG CompressedCGName("cfl", $callee_file, \%filename_to_index_map);
+      print CG CompressedCGName("cfn", $callee_function, \%fnname_to_index_map);
+      print CG ("calls=$count $callee_line\n");
+    }
+    print CG ("$caller_line $count\n\n");
+  }
+}
+
+# Print disassembly for all all routines that match $main::opt_disasm
+sub PrintDisassembly {
+  my $libs = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $disasm_opts = shift;
+
+  my $total = TotalProfile($flat);
+
+  foreach my $lib (@{$libs}) {
+    my $symbol_table = GetProcedureBoundaries($lib->[0], $disasm_opts);
+    my $offset = AddressSub($lib->[1], $lib->[3]);
+    foreach my $routine (sort ByName keys(%{$symbol_table})) {
+      my $start_addr = $symbol_table->{$routine}->[0];
+      my $end_addr = $symbol_table->{$routine}->[1];
+      # See if there are any samples in this routine
+      my $length = hex(AddressSub($end_addr, $start_addr));
+      my $addr = AddressAdd($start_addr, $offset);
+      for (my $i = 0; $i < $length; $i++) {
+        if (defined($cumulative->{$addr})) {
+          PrintDisassembledFunction($lib->[0], $offset,
+                                    $routine, $flat, $cumulative,
+                                    $start_addr, $end_addr, $total);
+          last;
+        }
+        $addr = AddressInc($addr);
+      }
+    }
+  }
+}
+
+# Return reference to array of tuples of the form:
+#       [start_address, filename, linenumber, instruction, limit_address]
+# E.g.,
+#       ["0x806c43d", "/foo/bar.cc", 131, "ret", "0x806c440"]
+sub Disassemble {
+  my $prog = shift;
+  my $offset = shift;
+  my $start_addr = shift;
+  my $end_addr = shift;
+
+  my $objdump = $obj_tool_map{"objdump"};
+  my $cmd = ShellEscape($objdump, "-C", "-d", "-l", "--no-show-raw-insn",
+                        "--start-address=0x$start_addr",
+                        "--stop-address=0x$end_addr", $prog);
+  open(OBJDUMP, "$cmd |") || error("$cmd: $!\n");
+  my @result = ();
+  my $filename = "";
+  my $linenumber = -1;
+  my $last = ["", "", "", ""];
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    chop;
+    if (m|\s*([^:\s]+):(\d+)\s*$|) {
+      # Location line of the form:
+      #   :
+      $filename = $1;
+      $linenumber = $2;
+    } elsif (m/^ +([0-9a-f]+):\s*(.*)/) {
+      # Disassembly line -- zero-extend address to full length
+      my $addr = HexExtend($1);
+      my $k = AddressAdd($addr, $offset);
+      $last->[4] = $k;   # Store ending address for previous instruction
+      $last = [$k, $filename, $linenumber, $2, $end_addr];
+      push(@result, $last);
+    }
+  }
+  close(OBJDUMP);
+  return @result;
+}
+
+# The input file should contain lines of the form /proc/maps-like
+# output (same format as expected from the profiles) or that looks
+# like hex addresses (like "0xDEADBEEF").  We will parse all
+# /proc/maps output, and for all the hex addresses, we will output
+# "short" symbol names, one per line, in the same order as the input.
+sub PrintSymbols {
+  my $maps_and_symbols_file = shift;
+
+  # ParseLibraries expects pcs to be in a set.  Fine by us...
+  my @pclist = ();   # pcs in sorted order
+  my $pcs = {};
+  my $map = "";
+  foreach my $line (<$maps_and_symbols_file>) {
+    $line =~ s/\r//g;    # turn windows-looking lines into unix-looking lines
+    if ($line =~ /\b(0x[0-9a-f]+)\b/i) {
+      push(@pclist, HexExtend($1));
+      $pcs->{$pclist[-1]} = 1;
+    } else {
+      $map .= $line;
+    }
+  }
+
+  my $libs = ParseLibraries($main::prog, $map, $pcs);
+  my $symbols = ExtractSymbols($libs, $pcs);
+
+  foreach my $pc (@pclist) {
+    # ->[0] is the shortname, ->[2] is the full name
+    print(($symbols->{$pc}->[0] || "??") . "\n");
+  }
+}
+
+
+# For sorting functions by name
+sub ByName {
+  return ShortFunctionName($a) cmp ShortFunctionName($b);
+}
+
+# Print source-listing for all all routines that match $list_opts
+sub PrintListing {
+  my $total = shift;
+  my $libs = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $list_opts = shift;
+  my $html = shift;
+
+  my $output = \*STDOUT;
+  my $fname = "";
+
+  if ($html) {
+    # Arrange to write the output to a temporary file
+    $fname = TempName($main::next_tmpfile, "html");
+    $main::next_tmpfile++;
+    if (!open(TEMP, ">$fname")) {
+      print STDERR "$fname: $!\n";
+      return;
+    }
+    $output = \*TEMP;
+    print $output HtmlListingHeader();
+    printf $output ("
%s
Total: %s %s
\n",
+                    $main::prog, Unparse($total), Units());
+  }
+
+  my $listed = 0;
+  foreach my $lib (@{$libs}) {
+    my $symbol_table = GetProcedureBoundaries($lib->[0], $list_opts);
+    my $offset = AddressSub($lib->[1], $lib->[3]);
+    foreach my $routine (sort ByName keys(%{$symbol_table})) {
+      # Print if there are any samples in this routine
+      my $start_addr = $symbol_table->{$routine}->[0];
+      my $end_addr = $symbol_table->{$routine}->[1];
+      my $length = hex(AddressSub($end_addr, $start_addr));
+      my $addr = AddressAdd($start_addr, $offset);
+      for (my $i = 0; $i < $length; $i++) {
+        if (defined($cumulative->{$addr})) {
+          $listed += PrintSource(
+            $lib->[0], $offset,
+            $routine, $flat, $cumulative,
+            $start_addr, $end_addr,
+            $html,
+            $output);
+          last;
+        }
+        $addr = AddressInc($addr);
+      }
+    }
+  }
+
+  if ($html) {
+    if ($listed > 0) {
+      print $output HtmlListingFooter();
+      close($output);
+      RunWeb($fname);
+    } else {
+      close($output);
+      unlink($fname);
+    }
+  }
+}
+
+sub HtmlListingHeader {
+  return <<'EOF';
+
+
+
+Pprof listing
+
+
+
+
+EOF
+}
+
+sub HtmlListingFooter {
+  return <<'EOF';
+
+
+EOF
+}
+
+sub HtmlEscape {
+  my $text = shift;
+  $text =~ s/&/&/g;
+  $text =~ s//>/g;
+  return $text;
+}
+
+# Returns the indentation of the line, if it has any non-whitespace
+# characters.  Otherwise, returns -1.
+sub Indentation {
+  my $line = shift;
+  if (m/^(\s*)\S/) {
+    return length($1);
+  } else {
+    return -1;
+  }
+}
+
+# If the symbol table contains inlining info, Disassemble() may tag an
+# instruction with a location inside an inlined function.  But for
+# source listings, we prefer to use the location in the function we
+# are listing.  So use MapToSymbols() to fetch full location
+# information for each instruction and then pick out the first
+# location from a location list (location list contains callers before
+# callees in case of inlining).
+#
+# After this routine has run, each entry in $instructions contains:
+#   [0] start address
+#   [1] filename for function we are listing
+#   [2] line number for function we are listing
+#   [3] disassembly
+#   [4] limit address
+#   [5] most specific filename (may be different from [1] due to inlining)
+#   [6] most specific line number (may be different from [2] due to inlining)
+sub GetTopLevelLineNumbers {
+  my ($lib, $offset, $instructions) = @_;
+  my $pcs = [];
+  for (my $i = 0; $i <= $#{$instructions}; $i++) {
+    push(@{$pcs}, $instructions->[$i]->[0]);
+  }
+  my $symbols = {};
+  MapToSymbols($lib, $offset, $pcs, $symbols);
+  for (my $i = 0; $i <= $#{$instructions}; $i++) {
+    my $e = $instructions->[$i];
+    push(@{$e}, $e->[1]);
+    push(@{$e}, $e->[2]);
+    my $addr = $e->[0];
+    my $sym = $symbols->{$addr};
+    if (defined($sym)) {
+      if ($#{$sym} >= 2 && $sym->[1] =~ m/^(.*):(\d+)$/) {
+        $e->[1] = $1;  # File name
+        $e->[2] = $2;  # Line number
+      }
+    }
+  }
+}
+
+# Print source-listing for one routine
+sub PrintSource {
+  my $prog = shift;
+  my $offset = shift;
+  my $routine = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $start_addr = shift;
+  my $end_addr = shift;
+  my $html = shift;
+  my $output = shift;
+
+  # Disassemble all instructions (just to get line numbers)
+  my @instructions = Disassemble($prog, $offset, $start_addr, $end_addr);
+  GetTopLevelLineNumbers($prog, $offset, \@instructions);
+
+  # Hack 1: assume that the first source file encountered in the
+  # disassembly contains the routine
+  my $filename = undef;
+  for (my $i = 0; $i <= $#instructions; $i++) {
+    if ($instructions[$i]->[2] >= 0) {
+      $filename = $instructions[$i]->[1];
+      last;
+    }
+  }
+  if (!defined($filename)) {
+    print STDERR "no filename found in $routine\n";
+    return 0;
+  }
+
+  # Hack 2: assume that the largest line number from $filename is the
+  # end of the procedure.  This is typically safe since if P1 contains
+  # an inlined call to P2, then P2 usually occurs earlier in the
+  # source file.  If this does not work, we might have to compute a
+  # density profile or just print all regions we find.
+  my $lastline = 0;
+  for (my $i = 0; $i <= $#instructions; $i++) {
+    my $f = $instructions[$i]->[1];
+    my $l = $instructions[$i]->[2];
+    if (($f eq $filename) && ($l > $lastline)) {
+      $lastline = $l;
+    }
+  }
+
+  # Hack 3: assume the first source location from "filename" is the start of
+  # the source code.
+  my $firstline = 1;
+  for (my $i = 0; $i <= $#instructions; $i++) {
+    if ($instructions[$i]->[1] eq $filename) {
+      $firstline = $instructions[$i]->[2];
+      last;
+    }
+  }
+
+  # Hack 4: Extend last line forward until its indentation is less than
+  # the indentation we saw on $firstline
+  my $oldlastline = $lastline;
+  {
+    if (!open(FILE, "<$filename")) {
+      print STDERR "$filename: $!\n";
+      return 0;
+    }
+    my $l = 0;
+    my $first_indentation = -1;
+    while () {
+      s/\r//g;         # turn windows-looking lines into unix-looking lines
+      $l++;
+      my $indent = Indentation($_);
+      if ($l >= $firstline) {
+        if ($first_indentation < 0 && $indent >= 0) {
+          $first_indentation = $indent;
+          last if ($first_indentation == 0);
+        }
+      }
+      if ($l >= $lastline && $indent >= 0) {
+        if ($indent >= $first_indentation) {
+          $lastline = $l+1;
+        } else {
+          last;
+        }
+      }
+    }
+    close(FILE);
+  }
+
+  # Assign all samples to the range $firstline,$lastline,
+  # Hack 4: If an instruction does not occur in the range, its samples
+  # are moved to the next instruction that occurs in the range.
+  my $samples1 = {};        # Map from line number to flat count
+  my $samples2 = {};        # Map from line number to cumulative count
+  my $running1 = 0;         # Unassigned flat counts
+  my $running2 = 0;         # Unassigned cumulative counts
+  my $total1 = 0;           # Total flat counts
+  my $total2 = 0;           # Total cumulative counts
+  my %disasm = ();          # Map from line number to disassembly
+  my $running_disasm = "";  # Unassigned disassembly
+  my $skip_marker = "---\n";
+  if ($html) {
+    $skip_marker = "";
+    for (my $l = $firstline; $l <= $lastline; $l++) {
+      $disasm{$l} = "";
+    }
+  }
+  my $last_dis_filename = '';
+  my $last_dis_linenum = -1;
+  my $last_touched_line = -1;  # To detect gaps in disassembly for a line
+  foreach my $e (@instructions) {
+    # Add up counts for all address that fall inside this instruction
+    my $c1 = 0;
+    my $c2 = 0;
+    for (my $a = $e->[0]; $a lt $e->[4]; $a = AddressInc($a)) {
+      $c1 += GetEntry($flat, $a);
+      $c2 += GetEntry($cumulative, $a);
+    }
+
+    if ($html) {
+      my $dis = sprintf("      %6s %6s \t\t%8s: %s ",
+                        HtmlPrintNumber($c1),
+                        HtmlPrintNumber($c2),
+                        UnparseAddress($offset, $e->[0]),
+                        CleanDisassembly($e->[3]));
+      
+      # Append the most specific source line associated with this instruction
+      if (length($dis) < 80) { $dis .= (' ' x (80 - length($dis))) };
+      $dis = HtmlEscape($dis);
+      my $f = $e->[5];
+      my $l = $e->[6];
+      if ($f ne $last_dis_filename) {
+        $dis .= sprintf("%s:%d", 
+                        HtmlEscape(CleanFileName($f)), $l);
+      } elsif ($l ne $last_dis_linenum) {
+        # De-emphasize the unchanged file name portion
+        $dis .= sprintf("%s" .
+                        ":%d", 
+                        HtmlEscape(CleanFileName($f)), $l);
+      } else {
+        # De-emphasize the entire location
+        $dis .= sprintf("%s:%d", 
+                        HtmlEscape(CleanFileName($f)), $l);
+      }
+      $last_dis_filename = $f;
+      $last_dis_linenum = $l;
+      $running_disasm .= $dis;
+      $running_disasm .= "\n";
+    }
+
+    $running1 += $c1;
+    $running2 += $c2;
+    $total1 += $c1;
+    $total2 += $c2;
+    my $file = $e->[1];
+    my $line = $e->[2];
+    if (($file eq $filename) &&
+        ($line >= $firstline) &&
+        ($line <= $lastline)) {
+      # Assign all accumulated samples to this line
+      AddEntry($samples1, $line, $running1);
+      AddEntry($samples2, $line, $running2);
+      $running1 = 0;
+      $running2 = 0;
+      if ($html) {
+        if ($line != $last_touched_line && $disasm{$line} ne '') {
+          $disasm{$line} .= "\n";
+        }
+        $disasm{$line} .= $running_disasm;
+        $running_disasm = '';
+        $last_touched_line = $line;
+      }
+    }
+  }
+
+  # Assign any leftover samples to $lastline
+  AddEntry($samples1, $lastline, $running1);
+  AddEntry($samples2, $lastline, $running2);
+  if ($html) {
+    if ($lastline != $last_touched_line && $disasm{$lastline} ne '') {
+      $disasm{$lastline} .= "\n";
+    }
+    $disasm{$lastline} .= $running_disasm;
+  }
+
+  if ($html) {
+    printf $output (
+      "
%s
%s\n
\n" .
+      "Total:%6s %6s (flat / cumulative %s)\n",
+      HtmlEscape(ShortFunctionName($routine)),
+      HtmlEscape(CleanFileName($filename)),
+      Unparse($total1),
+      Unparse($total2),
+      Units());
+  } else {
+    printf $output (
+      "ROUTINE ====================== %s in %s\n" .
+      "%6s %6s Total %s (flat / cumulative)\n",
+      ShortFunctionName($routine),
+      CleanFileName($filename),
+      Unparse($total1),
+      Unparse($total2),
+      Units());
+  }
+  if (!open(FILE, "<$filename")) {
+    print STDERR "$filename: $!\n";
+    return 0;
+  }
+  my $l = 0;
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    $l++;
+    if ($l >= $firstline - 5 &&
+        (($l <= $oldlastline + 5) || ($l <= $lastline))) {
+      chop;
+      my $text = $_;
+      if ($l == $firstline) { print $output $skip_marker; }
+      my $n1 = GetEntry($samples1, $l);
+      my $n2 = GetEntry($samples2, $l);
+      if ($html) {
+        # Emit a span that has one of the following classes:
+        #    livesrc -- has samples
+        #    deadsrc -- has disassembly, but with no samples
+        #    nop     -- has no matching disasembly
+        # Also emit an optional span containing disassembly.
+        my $dis = $disasm{$l};
+        my $asm = "";
+        if (defined($dis) && $dis ne '') {
+          $asm = "" . $dis . "";
+        }
+        my $source_class = (($n1 + $n2 > 0) 
+                            ? "livesrc" 
+                            : (($asm ne "") ? "deadsrc" : "nop"));
+        printf $output (
+          "%5d " .
+          "%6s %6s %s%s\n",
+          $l, $source_class,
+          HtmlPrintNumber($n1),
+          HtmlPrintNumber($n2),
+          HtmlEscape($text),
+          $asm);
+      } else {
+        printf $output(
+          "%6s %6s %4d: %s\n",
+          UnparseAlt($n1),
+          UnparseAlt($n2),
+          $l,
+          $text);
+      }
+      if ($l == $lastline)  { print $output $skip_marker; }
+    };
+  }
+  close(FILE);
+  if ($html) {
+    print $output "
\n";
+  }
+  return 1;
+}
+
+# Return the source line for the specified file/linenumber.
+# Returns undef if not found.
+sub SourceLine {
+  my $file = shift;
+  my $line = shift;
+
+  # Look in cache
+  if (!defined($main::source_cache{$file})) {
+    if (100 < scalar keys(%main::source_cache)) {
+      # Clear the cache when it gets too big
+      $main::source_cache = ();
+    }
+
+    # Read all lines from the file
+    if (!open(FILE, "<$file")) {
+      print STDERR "$file: $!\n";
+      $main::source_cache{$file} = [];  # Cache the negative result
+      return undef;
+    }
+    my $lines = [];
+    push(@{$lines}, "");        # So we can use 1-based line numbers as indices
+    while () {
+      push(@{$lines}, $_);
+    }
+    close(FILE);
+
+    # Save the lines in the cache
+    $main::source_cache{$file} = $lines;
+  }
+
+  my $lines = $main::source_cache{$file};
+  if (($line < 0) || ($line > $#{$lines})) {
+    return undef;
+  } else {
+    return $lines->[$line];
+  }
+}
+
+# Print disassembly for one routine with interspersed source if available
+sub PrintDisassembledFunction {
+  my $prog = shift;
+  my $offset = shift;
+  my $routine = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $start_addr = shift;
+  my $end_addr = shift;
+  my $total = shift;
+
+  # Disassemble all instructions
+  my @instructions = Disassemble($prog, $offset, $start_addr, $end_addr);
+
+  # Make array of counts per instruction
+  my @flat_count = ();
+  my @cum_count = ();
+  my $flat_total = 0;
+  my $cum_total = 0;
+  foreach my $e (@instructions) {
+    # Add up counts for all address that fall inside this instruction
+    my $c1 = 0;
+    my $c2 = 0;
+    for (my $a = $e->[0]; $a lt $e->[4]; $a = AddressInc($a)) {
+      $c1 += GetEntry($flat, $a);
+      $c2 += GetEntry($cumulative, $a);
+    }
+    push(@flat_count, $c1);
+    push(@cum_count, $c2);
+    $flat_total += $c1;
+    $cum_total += $c2;
+  }
+
+  # Print header with total counts
+  printf("ROUTINE ====================== %s\n" .
+         "%6s %6s %s (flat, cumulative) %.1f%% of total\n",
+         ShortFunctionName($routine),
+         Unparse($flat_total),
+         Unparse($cum_total),
+         Units(),
+         ($cum_total * 100.0) / $total);
+
+  # Process instructions in order
+  my $current_file = "";
+  for (my $i = 0; $i <= $#instructions; ) {
+    my $e = $instructions[$i];
+
+    # Print the new file name whenever we switch files
+    if ($e->[1] ne $current_file) {
+      $current_file = $e->[1];
+      my $fname = $current_file;
+      $fname =~ s|^\./||;   # Trim leading "./"
+
+      # Shorten long file names
+      if (length($fname) >= 58) {
+        $fname = "..." . substr($fname, -55);
+      }
+      printf("-------------------- %s\n", $fname);
+    }
+
+    # TODO: Compute range of lines to print together to deal with
+    # small reorderings.
+    my $first_line = $e->[2];
+    my $last_line = $first_line;
+    my %flat_sum = ();
+    my %cum_sum = ();
+    for (my $l = $first_line; $l <= $last_line; $l++) {
+      $flat_sum{$l} = 0;
+      $cum_sum{$l} = 0;
+    }
+
+    # Find run of instructions for this range of source lines
+    my $first_inst = $i;
+    while (($i <= $#instructions) &&
+           ($instructions[$i]->[2] >= $first_line) &&
+           ($instructions[$i]->[2] <= $last_line)) {
+      $e = $instructions[$i];
+      $flat_sum{$e->[2]} += $flat_count[$i];
+      $cum_sum{$e->[2]} += $cum_count[$i];
+      $i++;
+    }
+    my $last_inst = $i - 1;
+
+    # Print source lines
+    for (my $l = $first_line; $l <= $last_line; $l++) {
+      my $line = SourceLine($current_file, $l);
+      if (!defined($line)) {
+        $line = "?\n";
+        next;
+      } else {
+        $line =~ s/^\s+//;
+      }
+      printf("%6s %6s %5d: %s",
+             UnparseAlt($flat_sum{$l}),
+             UnparseAlt($cum_sum{$l}),
+             $l,
+             $line);
+    }
+
+    # Print disassembly
+    for (my $x = $first_inst; $x <= $last_inst; $x++) {
+      my $e = $instructions[$x];
+      printf("%6s %6s    %8s: %6s\n",
+             UnparseAlt($flat_count[$x]),
+             UnparseAlt($cum_count[$x]),
+             UnparseAddress($offset, $e->[0]),
+             CleanDisassembly($e->[3]));
+    }
+  }
+}
+
+# Print DOT graph
+sub PrintDot {
+  my $prog = shift;
+  my $symbols = shift;
+  my $raw = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $overall_total = shift;
+
+  # Get total
+  my $local_total = TotalProfile($flat);
+  my $nodelimit = int($main::opt_nodefraction * $local_total);
+  my $edgelimit = int($main::opt_edgefraction * $local_total);
+  my $nodecount = $main::opt_nodecount;
+
+  # Find nodes to include
+  my @list = (sort { abs(GetEntry($cumulative, $b)) <=>
+                     abs(GetEntry($cumulative, $a))
+                     || $a cmp $b }
+              keys(%{$cumulative}));
+  my $last = $nodecount - 1;
+  if ($last > $#list) {
+    $last = $#list;
+  }
+  while (($last >= 0) &&
+         (abs(GetEntry($cumulative, $list[$last])) <= $nodelimit)) {
+    $last--;
+  }
+  if ($last < 0) {
+    print STDERR "No nodes to print\n";
+    return 0;
+  }
+
+  if ($nodelimit > 0 || $edgelimit > 0) {
+    printf STDERR ("Dropping nodes with <= %s %s; edges with <= %s abs(%s)\n",
+                   Unparse($nodelimit), Units(),
+                   Unparse($edgelimit), Units());
+  }
+
+  # Open DOT output file
+  my $output;
+  my $escaped_dot = ShellEscape(@DOT);
+  my $escaped_ps2pdf = ShellEscape(@PS2PDF);
+  if ($main::opt_gv) {
+    my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "ps"));
+    $output = "| $escaped_dot -Tps2 >$escaped_outfile";
+  } elsif ($main::opt_evince) {
+    my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "pdf"));
+    $output = "| $escaped_dot -Tps2 | $escaped_ps2pdf - $escaped_outfile";
+  } elsif ($main::opt_ps) {
+    $output = "| $escaped_dot -Tps2";
+  } elsif ($main::opt_pdf) {
+    $output = "| $escaped_dot -Tps2 | $escaped_ps2pdf - -";
+  } elsif ($main::opt_web || $main::opt_svg) {
+    # We need to post-process the SVG, so write to a temporary file always.
+    my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "svg"));
+    $output = "| $escaped_dot -Tsvg >$escaped_outfile";
+  } elsif ($main::opt_gif) {
+    $output = "| $escaped_dot -Tgif";
+  } else {
+    $output = ">&STDOUT";
+  }
+  open(DOT, $output) || error("$output: $!\n");
+
+  # Title
+  printf DOT ("digraph \"%s; %s %s\" {\n",
+              $prog,
+              Unparse($overall_total),
+              Units());
+  if ($main::opt_pdf) {
+    # The output is more printable if we set the page size for dot.
+    printf DOT ("size=\"8,11\"\n");
+  }
+  printf DOT ("node [width=0.375,height=0.25];\n");
+
+  # Print legend
+  printf DOT ("Legend [shape=box,fontsize=24,shape=plaintext," .
+              "label=\"%s\\l%s\\l%s\\l%s\\l%s\\l\"];\n",
+              $prog,
+              sprintf("Total %s: %s", Units(), Unparse($overall_total)),
+              sprintf("Focusing on: %s", Unparse($local_total)),
+              sprintf("Dropped nodes with <= %s abs(%s)",
+                      Unparse($nodelimit), Units()),
+              sprintf("Dropped edges with <= %s %s",
+                      Unparse($edgelimit), Units())
+              );
+
+  # Print nodes
+  my %node = ();
+  my $nextnode = 1;
+  foreach my $a (@list[0..$last]) {
+    # Pick font size
+    my $f = GetEntry($flat, $a);
+    my $c = GetEntry($cumulative, $a);
+
+    my $fs = 8;
+    if ($local_total > 0) {
+      $fs = 8 + (50.0 * sqrt(abs($f * 1.0 / $local_total)));
+    }
+
+    $node{$a} = $nextnode++;
+    my $sym = $a;
+    $sym =~ s/\s+/\\n/g;
+    $sym =~ s/::/\\n/g;
+
+    # Extra cumulative info to print for non-leaves
+    my $extra = "";
+    if ($f != $c) {
+      $extra = sprintf("\\rof %s (%s)",
+                       Unparse($c),
+                       Percent($c, $local_total));
+    }
+    my $style = "";
+    if ($main::opt_heapcheck) {
+      if ($f > 0) {
+        # make leak-causing nodes more visible (add a background)
+        $style = ",style=filled,fillcolor=gray"
+      } elsif ($f < 0) {
+        # make anti-leak-causing nodes (which almost never occur)
+        # stand out as well (triple border)
+        $style = ",peripheries=3"
+      }
+    }
+
+    printf DOT ("N%d [label=\"%s\\n%s (%s)%s\\r" .
+                "\",shape=box,fontsize=%.1f%s];\n",
+                $node{$a},
+                $sym,
+                Unparse($f),
+                Percent($f, $local_total),
+                $extra,
+                $fs,
+                $style,
+               );
+  }
+
+  # Get edges and counts per edge
+  my %edge = ();
+  my $n;
+  my $fullname_to_shortname_map = {};
+  FillFullnameToShortnameMap($symbols, $fullname_to_shortname_map);
+  foreach my $k (keys(%{$raw})) {
+    # TODO: omit low %age edges
+    $n = $raw->{$k};
+    my @translated = TranslateStack($symbols, $fullname_to_shortname_map, $k);
+    for (my $i = 1; $i <= $#translated; $i++) {
+      my $src = $translated[$i];
+      my $dst = $translated[$i-1];
+      #next if ($src eq $dst);  # Avoid self-edges?
+      if (exists($node{$src}) && exists($node{$dst})) {
+        my $edge_label = "$src\001$dst";
+        if (!exists($edge{$edge_label})) {
+          $edge{$edge_label} = 0;
+        }
+        $edge{$edge_label} += $n;
+      }
+    }
+  }
+
+  # Print edges (process in order of decreasing counts)
+  my %indegree = ();   # Number of incoming edges added per node so far
+  my %outdegree = ();  # Number of outgoing edges added per node so far
+  foreach my $e (sort { $edge{$b} <=> $edge{$a} } keys(%edge)) {
+    my @x = split(/\001/, $e);
+    $n = $edge{$e};
+
+    # Initialize degree of kept incoming and outgoing edges if necessary
+    my $src = $x[0];
+    my $dst = $x[1];
+    if (!exists($outdegree{$src})) { $outdegree{$src} = 0; }
+    if (!exists($indegree{$dst})) { $indegree{$dst} = 0; }
+
+    my $keep;
+    if ($indegree{$dst} == 0) {
+      # Keep edge if needed for reachability
+      $keep = 1;
+    } elsif (abs($n) <= $edgelimit) {
+      # Drop if we are below --edgefraction
+      $keep = 0;
+    } elsif ($outdegree{$src} >= $main::opt_maxdegree ||
+             $indegree{$dst} >= $main::opt_maxdegree) {
+      # Keep limited number of in/out edges per node
+      $keep = 0;
+    } else {
+      $keep = 1;
+    }
+
+    if ($keep) {
+      $outdegree{$src}++;
+      $indegree{$dst}++;
+
+      # Compute line width based on edge count
+      my $fraction = abs($local_total ? (3 * ($n / $local_total)) : 0);
+      if ($fraction > 1) { $fraction = 1; }
+      my $w = $fraction * 2;
+      if ($w < 1 && ($main::opt_web || $main::opt_svg)) {
+        # SVG output treats line widths < 1 poorly.
+        $w = 1;
+      }
+
+      # Dot sometimes segfaults if given edge weights that are too large, so
+      # we cap the weights at a large value
+      my $edgeweight = abs($n) ** 0.7;
+      if ($edgeweight > 100000) { $edgeweight = 100000; }
+      $edgeweight = int($edgeweight);
+
+      my $style = sprintf("setlinewidth(%f)", $w);
+      if ($x[1] =~ m/\(inline\)/) {
+        $style .= ",dashed";
+      }
+
+      # Use a slightly squashed function of the edge count as the weight
+      printf DOT ("N%s -> N%s [label=%s, weight=%d, style=\"%s\"];\n",
+                  $node{$x[0]},
+                  $node{$x[1]},
+                  Unparse($n),
+                  $edgeweight,
+                  $style);
+    }
+  }
+
+  print DOT ("}\n");
+  close(DOT);
+
+  if ($main::opt_web || $main::opt_svg) {
+    # Rewrite SVG to be more usable inside web browser.
+    RewriteSvg(TempName($main::next_tmpfile, "svg"));
+  }
+
+  return 1;
+}
+
+sub RewriteSvg {
+  my $svgfile = shift;
+
+  open(SVG, $svgfile) || die "open temp svg: $!";
+  my @svg = ;
+  close(SVG);
+  unlink $svgfile;
+  my $svg = join('', @svg);
+
+  # Dot's SVG output is
+  #
+  #    
+  #    
+  #    ...
+  #    
+  #    
+  #
+  # Change it to
+  #
+  #    
+  #    $svg_javascript
+  #    
+  #    
+  #    ...
+  #    
+  #    
+  #    
+
+  # Fix width, height; drop viewBox.
+  $svg =~ s/(?s) above first 
+  my $svg_javascript = SvgJavascript();
+  my $viewport = "\n";
+  $svg =~ s/ above .
+  $svg =~ s/(.*)(<\/svg>)/$1<\/g>$2/;
+  $svg =~ s/$svgfile") || die "open $svgfile: $!";
+    print SVG $svg;
+    close(SVG);
+  }
+}
+
+sub SvgJavascript {
+  return <<'EOF';
+
+EOF
+}
+
+# Provides a map from fullname to shortname for cases where the
+# shortname is ambiguous.  The symlist has both the fullname and
+# shortname for all symbols, which is usually fine, but sometimes --
+# such as overloaded functions -- two different fullnames can map to
+# the same shortname.  In that case, we use the address of the
+# function to disambiguate the two.  This function fills in a map that
+# maps fullnames to modified shortnames in such cases.  If a fullname
+# is not present in the map, the 'normal' shortname provided by the
+# symlist is the appropriate one to use.
+sub FillFullnameToShortnameMap {
+  my $symbols = shift;
+  my $fullname_to_shortname_map = shift;
+  my $shortnames_seen_once = {};
+  my $shortnames_seen_more_than_once = {};
+
+  foreach my $symlist (values(%{$symbols})) {
+    # TODO(csilvers): deal with inlined symbols too.
+    my $shortname = $symlist->[0];
+    my $fullname = $symlist->[2];
+    if ($fullname !~ /<[0-9a-fA-F]+>$/) {  # fullname doesn't end in an address
+      next;       # the only collisions we care about are when addresses differ
+    }
+    if (defined($shortnames_seen_once->{$shortname}) &&
+        $shortnames_seen_once->{$shortname} ne $fullname) {
+      $shortnames_seen_more_than_once->{$shortname} = 1;
+    } else {
+      $shortnames_seen_once->{$shortname} = $fullname;
+    }
+  }
+
+  foreach my $symlist (values(%{$symbols})) {
+    my $shortname = $symlist->[0];
+    my $fullname = $symlist->[2];
+    # TODO(csilvers): take in a list of addresses we care about, and only
+    # store in the map if $symlist->[1] is in that list.  Saves space.
+    next if defined($fullname_to_shortname_map->{$fullname});
+    if (defined($shortnames_seen_more_than_once->{$shortname})) {
+      if ($fullname =~ /<0*([^>]*)>$/) {   # fullname has address at end of it
+        $fullname_to_shortname_map->{$fullname} = "$shortname\@$1";
+      }
+    }
+  }
+}
+
+# Return a small number that identifies the argument.
+# Multiple calls with the same argument will return the same number.
+# Calls with different arguments will return different numbers.
+sub ShortIdFor {
+  my $key = shift;
+  my $id = $main::uniqueid{$key};
+  if (!defined($id)) {
+    $id = keys(%main::uniqueid) + 1;
+    $main::uniqueid{$key} = $id;
+  }
+  return $id;
+}
+
+# Translate a stack of addresses into a stack of symbols
+sub TranslateStack {
+  my $symbols = shift;
+  my $fullname_to_shortname_map = shift;
+  my $k = shift;
+
+  my @addrs = split(/\n/, $k);
+  my @result = ();
+  for (my $i = 0; $i <= $#addrs; $i++) {
+    my $a = $addrs[$i];
+
+    # Skip large addresses since they sometimes show up as fake entries on RH9
+    if (length($a) > 8 && $a gt "7fffffffffffffff") {
+      next;
+    }
+
+    if ($main::opt_disasm || $main::opt_list) {
+      # We want just the address for the key
+      push(@result, $a);
+      next;
+    }
+
+    my $symlist = $symbols->{$a};
+    if (!defined($symlist)) {
+      $symlist = [$a, "", $a];
+    }
+
+    # We can have a sequence of symbols for a particular entry
+    # (more than one symbol in the case of inlining).  Callers
+    # come before callees in symlist, so walk backwards since
+    # the translated stack should contain callees before callers.
+    for (my $j = $#{$symlist}; $j >= 2; $j -= 3) {
+      my $func = $symlist->[$j-2];
+      my $fileline = $symlist->[$j-1];
+      my $fullfunc = $symlist->[$j];
+      if (defined($fullname_to_shortname_map->{$fullfunc})) {
+        $func = $fullname_to_shortname_map->{$fullfunc};
+      }
+      if ($j > 2) {
+        $func = "$func (inline)";
+      }
+
+      # Do not merge nodes corresponding to Callback::Run since that
+      # causes confusing cycles in dot display.  Instead, we synthesize
+      # a unique name for this frame per caller.
+      if ($func =~ m/Callback.*::Run$/) {
+        my $caller = ($i > 0) ? $addrs[$i-1] : 0;
+        $func = "Run#" . ShortIdFor($caller);
+      }
+
+      if ($main::opt_addresses) {
+        push(@result, "$a $func $fileline");
+      } elsif ($main::opt_lines) {
+        if ($func eq '??' && $fileline eq '??:0') {
+          push(@result, "$a");
+        } elsif (!$main::opt_show_addresses) {
+          push(@result, "$func $fileline");
+        } else {
+          push(@result, "$func $fileline ($a)");
+        }
+      } elsif ($main::opt_functions) {
+        if ($func eq '??') {
+          push(@result, "$a");
+        } elsif (!$main::opt_show_addresses) {
+          push(@result, $func);
+        } else {
+          push(@result, "$func ($a)");
+        }
+      } elsif ($main::opt_files) {
+        if ($fileline eq '??:0' || $fileline eq '') {
+          push(@result, "$a");
+        } else {
+          my $f = $fileline;
+          $f =~ s/:\d+$//;
+          push(@result, $f);
+        }
+      } else {
+        push(@result, $a);
+        last;  # Do not print inlined info
+      }
+    }
+  }
+
+  # print join(",", @addrs), " => ", join(",", @result), "\n";
+  return @result;
+}
+
+# Generate percent string for a number and a total
+sub Percent {
+  my $num = shift;
+  my $tot = shift;
+  if ($tot != 0) {
+    return sprintf("%.1f%%", $num * 100.0 / $tot);
+  } else {
+    return ($num == 0) ? "nan" : (($num > 0) ? "+inf" : "-inf");
+  }
+}
+
+# Generate pretty-printed form of number
+sub Unparse {
+  my $num = shift;
+  if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') {
+    if ($main::opt_inuse_objects || $main::opt_alloc_objects) {
+      return sprintf("%d", $num);
+    } else {
+      if ($main::opt_show_bytes) {
+        return sprintf("%d", $num);
+      } else {
+        return sprintf("%.1f", $num / 1048576.0);
+      }
+    }
+  } elsif ($main::profile_type eq 'contention' && !$main::opt_contentions) {
+    return sprintf("%.3f", $num / 1e9); # Convert nanoseconds to seconds
+  } else {
+    return sprintf("%d", $num);
+  }
+}
+
+# Alternate pretty-printed form: 0 maps to "."
+sub UnparseAlt {
+  my $num = shift;
+  if ($num == 0) {
+    return ".";
+  } else {
+    return Unparse($num);
+  }
+}
+
+# Alternate pretty-printed form: 0 maps to ""
+sub HtmlPrintNumber {
+  my $num = shift;
+  if ($num == 0) {
+    return "";
+  } else {
+    return Unparse($num);
+  }
+}
+
+# Return output units
+sub Units {
+  if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') {
+    if ($main::opt_inuse_objects || $main::opt_alloc_objects) {
+      return "objects";
+    } else {
+      if ($main::opt_show_bytes) {
+        return "B";
+      } else {
+        return "MB";
+      }
+    }
+  } elsif ($main::profile_type eq 'contention' && !$main::opt_contentions) {
+    return "seconds";
+  } else {
+    return "samples";
+  }
+}
+
+##### Profile manipulation code #####
+
+# Generate flattened profile:
+# If count is charged to stack [a,b,c,d], in generated profile,
+# it will be charged to [a]
+sub FlatProfile {
+  my $profile = shift;
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    if ($#addrs >= 0) {
+      AddEntry($result, $addrs[0], $count);
+    }
+  }
+  return $result;
+}
+
+# Generate cumulative profile:
+# If count is charged to stack [a,b,c,d], in generated profile,
+# it will be charged to [a], [b], [c], [d]
+sub CumulativeProfile {
+  my $profile = shift;
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    foreach my $a (@addrs) {
+      AddEntry($result, $a, $count);
+    }
+  }
+  return $result;
+}
+
+# If the second-youngest PC on the stack is always the same, returns
+# that pc.  Otherwise, returns undef.
+sub IsSecondPcAlwaysTheSame {
+  my $profile = shift;
+
+  my $second_pc = undef;
+  foreach my $k (keys(%{$profile})) {
+    my @addrs = split(/\n/, $k);
+    if ($#addrs < 1) {
+      return undef;
+    }
+    if (not defined $second_pc) {
+      $second_pc = $addrs[1];
+    } else {
+      if ($second_pc ne $addrs[1]) {
+        return undef;
+      }
+    }
+  }
+  return $second_pc;
+}
+
+sub ExtractSymbolLocationInlineStack {
+  my $symbols = shift;
+  my $address = shift;
+  my $stack = shift;
+  # 'addr2line' outputs "??:0" for unknown locations; we do the
+  # same to be consistent.
+  if (exists $symbols->{$address}) {
+    my @localinlinestack = @{$symbols->{$address}};
+    for (my $i = $#localinlinestack; $i > 0; $i-=3) {
+      my $file = $localinlinestack[$i-1];
+      my $fn = $localinlinestack[$i-2];
+      if ($file eq "?" || $file eq ":0") {
+        $file = "??:0";
+      }
+      my $suffix = "[inline]";
+      if ($i == 2) {
+        $suffix = "";
+      }
+      push (@$stack, $file.":".$fn.$suffix);
+    }
+  }
+  else {
+      push (@$stack, "??:0:unknown");
+  }
+}
+
+sub ExtractSymbolNameInlineStack {
+  my $symbols = shift;
+  my $address = shift;
+
+  my @stack = ();
+
+  if (exists $symbols->{$address}) {
+    my @localinlinestack = @{$symbols->{$address}};
+    for (my $i = $#localinlinestack; $i > 0; $i-=3) {
+      my $file = $localinlinestack[$i-1];
+      my $fn = $localinlinestack[$i-0];
+
+      if ($file eq "?" || $file eq ":0") {
+        $file = "??:0";
+      }
+      if ($fn eq '??') {
+        # If we can't get the symbol name, at least use the file information.
+        $fn = $file;
+      }
+      my $suffix = "[inline]";
+      if ($i == 2) {
+        $suffix = "";
+      }
+      push (@stack, $fn.$suffix);
+    }
+  }
+  else {
+    # If we can't get a symbol name, at least fill in the address.
+    push (@stack, $address);
+  }
+
+  return @stack;
+}
+
+sub ExtractSymbolLocation {
+  my $symbols = shift;
+  my $address = shift;
+  # 'addr2line' outputs "??:0" for unknown locations; we do the
+  # same to be consistent.
+  my $location = "??:0:unknown";
+  if (exists $symbols->{$address}) {
+    my $file = $symbols->{$address}->[1];
+    if ($file eq "?" || $file eq ":0") {
+      $file = "??:0"
+    }
+    $location = $file . ":" . $symbols->{$address}->[0];
+  }
+  return $location;
+}
+
+# Extracts a graph of calls.
+sub ExtractCalls {
+  my $symbols = shift;
+  my $profile = shift;
+  my $calls = {};
+  while( my ($stack_trace, $count) = each %$profile ) {
+    my @address = split(/\n/, $stack_trace);
+    my @stack = ();
+    ExtractSymbolLocationInlineStack($symbols, $address[0], \@stack);
+    for (my $i = 1; $i <= $#address; $i++) {
+      ExtractSymbolLocationInlineStack($symbols, $address[$i], \@stack);
+    }
+    AddEntry($calls, $stack[0], $count);
+    for (my $i = 1; $i < $#address; $i++) {
+      AddEntry($calls, "$stack[$i] -> $stack[$i-1]", $count);
+    }
+  }
+  return $calls;
+}
+
+sub PrintStacksForText {
+  my $symbols = shift;
+  my $profile = shift;
+
+  while (my ($stack_trace, $count) = each %$profile) {
+    my @address = split(/\n/, $stack_trace);
+    for (my $i = 0; $i <= $#address; $i++) {
+      $address[$i] = sprintf("(%s) %s", $address[$i], ExtractSymbolLocation($symbols, $address[$i]));
+    }
+    printf("%-8d %s\n\n", $count, join("\n         ", @address));
+  }
+}
+
+sub PrintCollapsedStacks {
+  my $symbols = shift;
+  my $profile = shift;
+
+  while (my ($stack_trace, $count) = each %$profile) {
+    my @address = split(/\n/, $stack_trace);
+    my @names = reverse ( map { ExtractSymbolNameInlineStack($symbols, $_) } @address );
+    printf("%s %d\n", join(";", @names), $count);
+  }
+}
+
+sub RemoveUninterestingFrames {
+  my $symbols = shift;
+  my $profile = shift;
+
+  # List of function names to skip
+  my %skip = ();
+  my $skip_regexp = 'NOMATCH';
+  if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') {
+    foreach my $name ('calloc',
+                      'cfree',
+                      'malloc',
+                      'free',
+                      'memalign',
+                      'posix_memalign',
+                      'pvalloc',
+                      'valloc',
+                      'realloc',
+                      'tc_calloc',
+                      'tc_cfree',
+                      'tc_malloc',
+                      'tc_free',
+                      'tc_memalign',
+                      'tc_posix_memalign',
+                      'tc_pvalloc',
+                      'tc_valloc',
+                      'tc_realloc',
+                      'tc_new',
+                      'tc_delete',
+                      'tc_newarray',
+                      'tc_deletearray',
+                      'tc_new_nothrow',
+                      'tc_newarray_nothrow',
+                      'do_malloc',
+                      '::do_malloc',   # new name -- got moved to an unnamed ns
+                      '::do_malloc_or_cpp_alloc',
+                      'DoSampledAllocation',
+                      'simple_alloc::allocate',
+                      '__malloc_alloc_template::allocate',
+                      '__builtin_delete',
+                      '__builtin_new',
+                      '__builtin_vec_delete',
+                      '__builtin_vec_new',
+                      'operator new',
+                      'operator new[]',
+                      # The entry to our memory-allocation routines on OS X
+                      'malloc_zone_malloc',
+                      'malloc_zone_calloc',
+                      'malloc_zone_valloc',
+                      'malloc_zone_realloc',
+                      'malloc_zone_memalign',
+                      'malloc_zone_free',
+                      # These mark the beginning/end of our custom sections
+                      '__start_google_malloc',
+                      '__stop_google_malloc',
+                      '__start_malloc_hook',
+                      '__stop_malloc_hook') {
+      $skip{$name} = 1;
+      $skip{"_" . $name} = 1;   # Mach (OS X) adds a _ prefix to everything
+    }
+    # TODO: Remove TCMalloc once everything has been
+    # moved into the tcmalloc:: namespace and we have flushed
+    # old code out of the system.
+    $skip_regexp = "TCMalloc|^tcmalloc::";
+  } elsif ($main::profile_type eq 'contention') {
+    foreach my $vname ('base::RecordLockProfileData',
+                       'base::SubmitMutexProfileData',
+                       'base::SubmitSpinLockProfileData',
+                       'Mutex::Unlock',
+                       'Mutex::UnlockSlow',
+                       'Mutex::ReaderUnlock',
+                       'MutexLock::~MutexLock',
+                       'SpinLock::Unlock',
+                       'SpinLock::SlowUnlock',
+                       'SpinLockHolder::~SpinLockHolder') {
+      $skip{$vname} = 1;
+    }
+  } elsif ($main::profile_type eq 'cpu' && !$main::opt_no_auto_signal_frames) {
+    # Drop signal handlers used for CPU profile collection
+    # TODO(dpeng): this should not be necessary; it's taken
+    # care of by the general 2nd-pc mechanism below.
+    foreach my $name ('ProfileData::Add',           # historical
+                      'ProfileData::prof_handler',  # historical
+                      'CpuProfiler::prof_handler',
+                      '__FRAME_END__',
+                      '__pthread_sighandler',
+                      '__restore') {
+      $skip{$name} = 1;
+    }
+  } else {
+    # Nothing skipped for unknown types
+  }
+
+  if ($main::profile_type eq 'cpu') {
+    # If all the second-youngest program counters are the same,
+    # this STRONGLY suggests that it is an artifact of measurement,
+    # i.e., stack frames pushed by the CPU profiler signal handler.
+    # Hence, we delete them.
+    # (The topmost PC is read from the signal structure, not from
+    # the stack, so it does not get involved.)
+    while (my $second_pc = IsSecondPcAlwaysTheSame($profile)) {
+      my $result = {};
+      my $func = '';
+      if (exists($symbols->{$second_pc})) {
+        $second_pc = $symbols->{$second_pc}->[0];
+      }
+      if ($main::opt_no_auto_signal_frames) {
+        print STDERR "All second stack frames are same: `$second_pc'.\nMight be stack trace capturing bug.\n";
+        last;
+      }
+      print STDERR "Removing $second_pc from all stack traces.\n";
+      foreach my $k (keys(%{$profile})) {
+        my $count = $profile->{$k};
+        my @addrs = split(/\n/, $k);
+        my $topaddr = POSIX::strtoul($addrs[0], 16);
+        splice @addrs, 1, 1;
+        if ($#addrs > 1) {
+          my $subtopaddr = POSIX::strtoul($addrs[1], 16);
+          if ($subtopaddr + 1 == $topaddr) {
+            splice @addrs, 1, 1;
+          }
+        }
+        my $reduced_path = join("\n", @addrs);
+        AddEntry($result, $reduced_path, $count);
+      }
+      $profile = $result;
+    }
+  }
+
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    my @path = ();
+    foreach my $a (@addrs) {
+      if (exists($symbols->{$a})) {
+        my $func = $symbols->{$a}->[0];
+        if ($skip{$func} || ($func =~ m/$skip_regexp/)) {
+          next;
+        }
+      }
+      push(@path, $a);
+    }
+    my $reduced_path = join("\n", @path);
+    AddEntry($result, $reduced_path, $count);
+  }
+  return $result;
+}
+
+# Reduce profile to granularity given by user
+sub ReduceProfile {
+  my $symbols = shift;
+  my $profile = shift;
+  my $result = {};
+  my $fullname_to_shortname_map = {};
+  FillFullnameToShortnameMap($symbols, $fullname_to_shortname_map);
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @translated = TranslateStack($symbols, $fullname_to_shortname_map, $k);
+    my @path = ();
+    my %seen = ();
+    $seen{''} = 1;      # So that empty keys are skipped
+    foreach my $e (@translated) {
+      # To avoid double-counting due to recursion, skip a stack-trace
+      # entry if it has already been seen
+      if (!$seen{$e}) {
+        $seen{$e} = 1;
+        push(@path, $e);
+      }
+    }
+    my $reduced_path = join("\n", @path);
+    AddEntry($result, $reduced_path, $count);
+  }
+  return $result;
+}
+
+# Does the specified symbol array match the regexp?
+sub SymbolMatches {
+  my $sym = shift;
+  my $re = shift;
+  if (defined($sym)) {
+    for (my $i = 0; $i < $#{$sym}; $i += 3) {
+      if ($sym->[$i] =~ m/$re/ || $sym->[$i+1] =~ m/$re/) {
+        return 1;
+      }
+    }
+  }
+  return 0;
+}
+
+# Focus only on paths involving specified regexps
+sub FocusProfile {
+  my $symbols = shift;
+  my $profile = shift;
+  my $focus = shift;
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    foreach my $a (@addrs) {
+      # Reply if it matches either the address/shortname/fileline
+      if (($a =~ m/$focus/) || SymbolMatches($symbols->{$a}, $focus)) {
+        AddEntry($result, $k, $count);
+        last;
+      }
+    }
+  }
+  return $result;
+}
+
+# Focus only on paths not involving specified regexps
+sub IgnoreProfile {
+  my $symbols = shift;
+  my $profile = shift;
+  my $ignore = shift;
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    my $matched = 0;
+    foreach my $a (@addrs) {
+      # Reply if it matches either the address/shortname/fileline
+      if (($a =~ m/$ignore/) || SymbolMatches($symbols->{$a}, $ignore)) {
+        $matched = 1;
+        last;
+      }
+    }
+    if (!$matched) {
+      AddEntry($result, $k, $count);
+    }
+  }
+  return $result;
+}
+
+# Get total count in profile
+sub TotalProfile {
+  my $profile = shift;
+  my $result = 0;
+  foreach my $k (keys(%{$profile})) {
+    $result += $profile->{$k};
+  }
+  return $result;
+}
+
+# Add A to B
+sub AddProfile {
+  my $A = shift;
+  my $B = shift;
+
+  my $R = {};
+  # add all keys in A
+  foreach my $k (keys(%{$A})) {
+    my $v = $A->{$k};
+    AddEntry($R, $k, $v);
+  }
+  # add all keys in B
+  foreach my $k (keys(%{$B})) {
+    my $v = $B->{$k};
+    AddEntry($R, $k, $v);
+  }
+  return $R;
+}
+
+# Merges symbol maps
+sub MergeSymbols {
+  my $A = shift;
+  my $B = shift;
+
+  my $R = {};
+  foreach my $k (keys(%{$A})) {
+    $R->{$k} = $A->{$k};
+  }
+  if (defined($B)) {
+    foreach my $k (keys(%{$B})) {
+      $R->{$k} = $B->{$k};
+    }
+  }
+  return $R;
+}
+
+
+# Add A to B
+sub AddPcs {
+  my $A = shift;
+  my $B = shift;
+
+  my $R = {};
+  # add all keys in A
+  foreach my $k (keys(%{$A})) {
+    $R->{$k} = 1
+  }
+  # add all keys in B
+  foreach my $k (keys(%{$B})) {
+    $R->{$k} = 1
+  }
+  return $R;
+}
+
+# Subtract B from A
+sub SubtractProfile {
+  my $A = shift;
+  my $B = shift;
+
+  my $R = {};
+  foreach my $k (keys(%{$A})) {
+    my $v = $A->{$k} - GetEntry($B, $k);
+    if ($v < 0 && $main::opt_drop_negative) {
+      $v = 0;
+    }
+    AddEntry($R, $k, $v);
+  }
+  if (!$main::opt_drop_negative) {
+    # Take care of when subtracted profile has more entries
+    foreach my $k (keys(%{$B})) {
+      if (!exists($A->{$k})) {
+        AddEntry($R, $k, 0 - $B->{$k});
+      }
+    }
+  }
+  return $R;
+}
+
+# Get entry from profile; zero if not present
+sub GetEntry {
+  my $profile = shift;
+  my $k = shift;
+  if (exists($profile->{$k})) {
+    return $profile->{$k};
+  } else {
+    return 0;
+  }
+}
+
+# Add entry to specified profile
+sub AddEntry {
+  my $profile = shift;
+  my $k = shift;
+  my $n = shift;
+  if (!exists($profile->{$k})) {
+    $profile->{$k} = 0;
+  }
+  $profile->{$k} += $n;
+}
+
+# Add a stack of entries to specified profile, and add them to the $pcs
+# list.
+sub AddEntries {
+  my $profile = shift;
+  my $pcs = shift;
+  my $stack = shift;
+  my $count = shift;
+  my @k = ();
+
+  foreach my $e (split(/\s+/, $stack)) {
+    my $pc = HexExtend($e);
+    $pcs->{$pc} = 1;
+    push @k, $pc;
+  }
+  AddEntry($profile, (join "\n", @k), $count);
+}
+
+##### Code to profile a server dynamically #####
+
+sub CheckSymbolPage {
+  my $url = SymbolPageURL();
+  my $command = ShellEscape(@URL_FETCHER, $url);
+  open(SYMBOL, "$command |") or error($command);
+  my $line = ;
+  $line =~ s/\r//g;         # turn windows-looking lines into unix-looking lines
+  close(SYMBOL);
+  unless (defined($line)) {
+    error("$url doesn't exist\n");
+  }
+
+  if ($line =~ /^num_symbols:\s+(\d+)$/) {
+    if ($1 == 0) {
+      error("Stripped binary. No symbols available.\n");
+    }
+  } else {
+    error("Failed to get the number of symbols from $url\n");
+  }
+}
+
+sub IsProfileURL {
+  my $profile_name = shift;
+  if (-f $profile_name) {
+    printf STDERR "Using local file $profile_name.\n";
+    return 0;
+  }
+  return 1;
+}
+
+sub ParseProfileURL {
+  my $profile_name = shift;
+
+  if (!defined($profile_name) || $profile_name eq "") {
+    return ();
+  }
+
+  # Split profile URL - matches all non-empty strings, so no test.
+  $profile_name =~ m,^(https?://)?([^/]+)(.*?)(/|$PROFILES)?$,;
+
+  my $proto = $1 || "http://";
+  my $hostport = $2;
+  my $prefix = $3;
+  my $profile = $4 || "/";
+
+  my $host = $hostport;
+  $host =~ s/:.*//;
+
+  my $baseurl = "$proto$hostport$prefix";
+  return ($host, $baseurl, $profile);
+}
+
+# We fetch symbols from the first profile argument.
+sub SymbolPageURL {
+  my ($host, $baseURL, $path) = ParseProfileURL($main::pfile_args[0]);
+  return "$baseURL$SYMBOL_PAGE";
+}
+
+sub FetchProgramName() {
+  my ($host, $baseURL, $path) = ParseProfileURL($main::pfile_args[0]);
+  my $url = "$baseURL$PROGRAM_NAME_PAGE";
+  my $command_line = ShellEscape(@URL_FETCHER, $url);
+  open(CMDLINE, "$command_line |") or error($command_line);
+  my $cmdline = ;
+  $cmdline =~ s/\r//g;   # turn windows-looking lines into unix-looking lines
+  close(CMDLINE);
+  error("Failed to get program name from $url\n") unless defined($cmdline);
+  $cmdline =~ s/\x00.+//;  # Remove argv[1] and latters.
+  $cmdline =~ s!\n!!g;  # Remove LFs.
+  return $cmdline;
+}
+
+# Gee, curl's -L (--location) option isn't reliable at least
+# with its 7.12.3 version.  Curl will forget to post data if
+# there is a redirection.  This function is a workaround for
+# curl.  Redirection happens on borg hosts.
+sub ResolveRedirectionForCurl {
+  my $url = shift;
+  my $command_line = ShellEscape(@URL_FETCHER, "--head", $url);
+  open(CMDLINE, "$command_line |") or error($command_line);
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    if (/^Location: (.*)/) {
+      $url = $1;
+    }
+  }
+  close(CMDLINE);
+  return $url;
+}
+
+# Add a timeout flat to URL_FETCHER.  Returns a new list.
+sub AddFetchTimeout {
+  my $timeout = shift;
+  my @fetcher = @_;
+  if (defined($timeout)) {
+    if (join(" ", @fetcher) =~ m/\bcurl -s/) {
+      push(@fetcher, "--max-time", sprintf("%d", $timeout));
+    } elsif (join(" ", @fetcher) =~ m/\brpcget\b/) {
+      push(@fetcher, sprintf("--deadline=%d", $timeout));
+    }
+  }
+  return @fetcher;
+}
+
+# Reads a symbol map from the file handle name given as $1, returning
+# the resulting symbol map.  Also processes variables relating to symbols.
+# Currently, the only variable processed is 'binary=' which updates
+# $main::prog to have the correct program name.
+sub ReadSymbols {
+  my $in = shift;
+  my $map = {};
+  while (<$in>) {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    # Removes all the leading zeroes from the symbols, see comment below.
+    if (m/^0x0*([0-9a-f]+)\s+(.+)/) {
+      $map->{$1} = $2;
+    } elsif (m/^---/) {
+      last;
+    } elsif (m/^([a-z][^=]*)=(.*)$/ ) {
+      my ($variable, $value) = ($1, $2);
+      for ($variable, $value) {
+        s/^\s+//;
+        s/\s+$//;
+      }
+      if ($variable eq "binary") {
+        if ($main::prog ne $UNKNOWN_BINARY && $main::prog ne $value) {
+          printf STDERR ("Warning: Mismatched binary name '%s', using '%s'.\n",
+                         $main::prog, $value);
+        }
+        $main::prog = $value;
+      } else {
+        printf STDERR ("Ignoring unknown variable in symbols list: " .
+            "'%s' = '%s'\n", $variable, $value);
+      }
+    }
+  }
+  return $map;
+}
+
+# Fetches and processes symbols to prepare them for use in the profile output
+# code.  If the optional 'symbol_map' arg is not given, fetches symbols from
+# $SYMBOL_PAGE for all PC values found in profile.  Otherwise, the raw symbols
+# are assumed to have already been fetched into 'symbol_map' and are simply
+# extracted and processed.
+sub FetchSymbols {
+  my $pcset = shift;
+  my $symbol_map = shift;
+
+  my %seen = ();
+  my @pcs = grep { !$seen{$_}++ } keys(%$pcset);  # uniq
+
+  if (!defined($symbol_map)) {
+    my $post_data = join("+", sort((map {"0x" . "$_"} @pcs)));
+
+    open(POSTFILE, ">$main::tmpfile_sym");
+    print POSTFILE $post_data;
+    close(POSTFILE);
+
+    my $url = SymbolPageURL();
+
+    my $command_line;
+    if (join(" ", @URL_FETCHER) =~ m/\bcurl -s/) {
+      $url = ResolveRedirectionForCurl($url);
+      $command_line = ShellEscape(@URL_FETCHER, "-d", "\@$main::tmpfile_sym",
+                                  $url);
+    } else {
+      $command_line = (ShellEscape(@URL_FETCHER, "--post", $url)
+                       . " < " . ShellEscape($main::tmpfile_sym));
+    }
+    # We use c++filt in case $SYMBOL_PAGE gives us mangled symbols.
+    my $escaped_cppfilt = ShellEscape($obj_tool_map{"c++filt"});
+    open(SYMBOL, "$command_line | $escaped_cppfilt |") or error($command_line);
+    $symbol_map = ReadSymbols(*SYMBOL{IO});
+    close(SYMBOL);
+  }
+
+  my $symbols = {};
+  foreach my $pc (@pcs) {
+    my $fullname;
+    # For 64 bits binaries, symbols are extracted with 8 leading zeroes.
+    # Then /symbol reads the long symbols in as uint64, and outputs
+    # the result with a "0x%08llx" format which get rid of the zeroes.
+    # By removing all the leading zeroes in both $pc and the symbols from
+    # /symbol, the symbols match and are retrievable from the map.
+    my $shortpc = $pc;
+    $shortpc =~ s/^0*//;
+    # Each line may have a list of names, which includes the function
+    # and also other functions it has inlined.  They are separated (in
+    # PrintSymbolizedProfile), by --, which is illegal in function names.
+    my $fullnames;
+    if (defined($symbol_map->{$shortpc})) {
+      $fullnames = $symbol_map->{$shortpc};
+    } else {
+      $fullnames = "0x" . $pc;  # Just use addresses
+    }
+    my $sym = [];
+    $symbols->{$pc} = $sym;
+    foreach my $fullname (split("--", $fullnames)) {
+      my $name = ShortFunctionName($fullname);
+      push(@{$sym}, $name, "?", $fullname);
+    }
+  }
+  return $symbols;
+}
+
+sub BaseName {
+  my $file_name = shift;
+  $file_name =~ s!^.*/!!;  # Remove directory name
+  return $file_name;
+}
+
+sub MakeProfileBaseName {
+  my ($binary_name, $profile_name) = @_;
+  my ($host, $baseURL, $path) = ParseProfileURL($profile_name);
+  my $binary_shortname = BaseName($binary_name);
+  return sprintf("%s.%s.%s",
+                 $binary_shortname, $main::op_time, $host);
+}
+
+sub FetchDynamicProfile {
+  my $binary_name = shift;
+  my $profile_name = shift;
+  my $fetch_name_only = shift;
+  my $encourage_patience = shift;
+
+  if (!IsProfileURL($profile_name)) {
+    return $profile_name;
+  } else {
+    my ($host, $baseURL, $path) = ParseProfileURL($profile_name);
+    if ($path eq "" || $path eq "/") {
+      # Missing type specifier defaults to cpu-profile
+      $path = $PROFILE_PAGE;
+    }
+
+    my $profile_file = MakeProfileBaseName($binary_name, $profile_name);
+
+    my $url = "$baseURL$path";
+    my $fetch_timeout = undef;
+    if ($path =~ m/$PROFILE_PAGE|$PMUPROFILE_PAGE/) {
+      if ($path =~ m/[?]/) {
+        $url .= "&";
+      } else {
+        $url .= "?";
+      }
+      $url .= sprintf("seconds=%d", $main::opt_seconds);
+      $fetch_timeout = $main::opt_seconds * 1.01 + 60;
+    } else {
+      # For non-CPU profiles, we add a type-extension to
+      # the target profile file name.
+      my $suffix = $path;
+      $suffix =~ s,/,.,g;
+      $profile_file .= $suffix;
+    }
+
+    my $profile_dir = $ENV{"PPROF_TMPDIR"} || ($ENV{HOME} . "/pprof");
+    if (! -d $profile_dir) {
+      mkdir($profile_dir)
+          || die("Unable to create profile directory $profile_dir: $!\n");
+    }
+    my $tmp_profile = "$profile_dir/.tmp.$profile_file";
+    my $real_profile = "$profile_dir/$profile_file";
+
+    if ($fetch_name_only > 0) {
+      return $real_profile;
+    }
+
+    my @fetcher = AddFetchTimeout($fetch_timeout, @URL_FETCHER);
+    my $cmd = ShellEscape(@fetcher, $url) . " > " . ShellEscape($tmp_profile);
+    if ($path =~ m/$PROFILE_PAGE|$PMUPROFILE_PAGE|$CENSUSPROFILE_PAGE/){
+      print STDERR "Gathering CPU profile from $url for $main::opt_seconds seconds to\n  ${real_profile}\n";
+      if ($encourage_patience) {
+        print STDERR "Be patient...\n";
+      }
+    } else {
+      print STDERR "Fetching $path profile from $url to\n  ${real_profile}\n";
+    }
+
+    (system($cmd) == 0) || error("Failed to get profile: $cmd: $!\n");
+    (system("mv", $tmp_profile, $real_profile) == 0) || error("Unable to rename profile\n");
+    print STDERR "Wrote profile to $real_profile\n";
+    $main::collected_profile = $real_profile;
+    return $main::collected_profile;
+  }
+}
+
+# Collect profiles in parallel
+sub FetchDynamicProfiles {
+  my $items = scalar(@main::pfile_args);
+  my $levels = log($items) / log(2);
+
+  if ($items == 1) {
+    $main::profile_files[0] = FetchDynamicProfile($main::prog, $main::pfile_args[0], 0, 1);
+  } else {
+    # math rounding issues
+    if ((2 ** $levels) < $items) {
+     $levels++;
+    }
+    my $count = scalar(@main::pfile_args);
+    for (my $i = 0; $i < $count; $i++) {
+      $main::profile_files[$i] = FetchDynamicProfile($main::prog, $main::pfile_args[$i], 1, 0);
+    }
+    print STDERR "Fetching $count profiles, Be patient...\n";
+    FetchDynamicProfilesRecurse($levels, 0, 0);
+    $main::collected_profile = join(" \\\n    ", @main::profile_files);
+  }
+}
+
+# Recursively fork a process to get enough processes
+# collecting profiles
+sub FetchDynamicProfilesRecurse {
+  my $maxlevel = shift;
+  my $level = shift;
+  my $position = shift;
+
+  if (my $pid = fork()) {
+    $position = 0 | ($position << 1);
+    TryCollectProfile($maxlevel, $level, $position);
+    wait;
+  } else {
+    $position = 1 | ($position << 1);
+    TryCollectProfile($maxlevel, $level, $position);
+    cleanup();
+    exit(0);
+  }
+}
+
+# Collect a single profile
+sub TryCollectProfile {
+  my $maxlevel = shift;
+  my $level = shift;
+  my $position = shift;
+
+  if ($level >= ($maxlevel - 1)) {
+    if ($position < scalar(@main::pfile_args)) {
+      FetchDynamicProfile($main::prog, $main::pfile_args[$position], 0, 0);
+    }
+  } else {
+    FetchDynamicProfilesRecurse($maxlevel, $level+1, $position);
+  }
+}
+
+##### Parsing code #####
+
+# Provide a small streaming-read module to handle very large
+# cpu-profile files.  Stream in chunks along a sliding window.
+# Provides an interface to get one 'slot', correctly handling
+# endian-ness differences.  A slot is one 32-bit or 64-bit word
+# (depending on the input profile).  We tell endianness and bit-size
+# for the profile by looking at the first 8 bytes: in cpu profiles,
+# the second slot is always 3 (we'll accept anything that's not 0).
+BEGIN {
+  package CpuProfileStream;
+
+  sub new {
+    my ($class, $file, $fname) = @_;
+    my $self = { file        => $file,
+                 base        => 0,
+                 stride      => 512 * 1024,   # must be a multiple of bitsize/8
+                 slots       => [],
+                 unpack_code => "",           # N for big-endian, V for little
+                 perl_is_64bit => 1,          # matters if profile is 64-bit
+    };
+    bless $self, $class;
+    # Let unittests adjust the stride
+    if ($main::opt_test_stride > 0) {
+      $self->{stride} = $main::opt_test_stride;
+    }
+    # Read the first two slots to figure out bitsize and endianness.
+    my $slots = $self->{slots};
+    my $str;
+    read($self->{file}, $str, 8);
+    # Set the global $address_length based on what we see here.
+    # 8 is 32-bit (8 hexadecimal chars); 16 is 64-bit (16 hexadecimal chars).
+    $address_length = ($str eq (chr(0)x8)) ? 16 : 8;
+    if ($address_length == 8) {
+      if (substr($str, 6, 2) eq chr(0)x2) {
+        $self->{unpack_code} = 'V';  # Little-endian.
+      } elsif (substr($str, 4, 2) eq chr(0)x2) {
+        $self->{unpack_code} = 'N';  # Big-endian
+      } else {
+        ::error("$fname: header size >= 2**16\n");
+      }
+      @$slots = unpack($self->{unpack_code} . "*", $str);
+    } else {
+      # If we're a 64-bit profile, check if we're a 64-bit-capable
+      # perl.  Otherwise, each slot will be represented as a float
+      # instead of an int64, losing precision and making all the
+      # 64-bit addresses wrong.  We won't complain yet, but will
+      # later if we ever see a value that doesn't fit in 32 bits.
+      my $has_q = 0;
+      eval { $has_q = pack("Q", "1") ? 1 : 1; };
+      if (!$has_q) {
+        $self->{perl_is_64bit} = 0;
+      }
+      read($self->{file}, $str, 8);
+      if (substr($str, 4, 4) eq chr(0)x4) {
+        # We'd love to use 'Q', but it's a) not universal, b) not endian-proof.
+        $self->{unpack_code} = 'V';  # Little-endian.
+      } elsif (substr($str, 0, 4) eq chr(0)x4) {
+        $self->{unpack_code} = 'N';  # Big-endian
+      } else {
+        ::error("$fname: header size >= 2**32\n");
+      }
+      my @pair = unpack($self->{unpack_code} . "*", $str);
+      # Since we know one of the pair is 0, it's fine to just add them.
+      @$slots = (0, $pair[0] + $pair[1]);
+    }
+    return $self;
+  }
+
+  # Load more data when we access slots->get(X) which is not yet in memory.
+  sub overflow {
+    my ($self) = @_;
+    my $slots = $self->{slots};
+    $self->{base} += $#$slots + 1;   # skip over data we're replacing
+    my $str;
+    read($self->{file}, $str, $self->{stride});
+    if ($address_length == 8) {      # the 32-bit case
+      # This is the easy case: unpack provides 32-bit unpacking primitives.
+      @$slots = unpack($self->{unpack_code} . "*", $str);
+    } else {
+      # We need to unpack 32 bits at a time and combine.
+      my @b32_values = unpack($self->{unpack_code} . "*", $str);
+      my @b64_values = ();
+      for (my $i = 0; $i < $#b32_values; $i += 2) {
+        # TODO(csilvers): if this is a 32-bit perl, the math below
+        #    could end up in a too-large int, which perl will promote
+        #    to a double, losing necessary precision.  Deal with that.
+        #    Right now, we just die.
+        my ($lo, $hi) = ($b32_values[$i], $b32_values[$i+1]);
+        if ($self->{unpack_code} eq 'N') {    # big-endian
+          ($lo, $hi) = ($hi, $lo);
+        }
+        my $value = $lo + $hi * (2**32);
+        if (!$self->{perl_is_64bit} &&   # check value is exactly represented
+            (($value % (2**32)) != $lo || int($value / (2**32)) != $hi)) {
+          ::error("Need a 64-bit perl to process this 64-bit profile.\n");
+        }
+        push(@b64_values, $value);
+      }
+      @$slots = @b64_values;
+    }
+  }
+
+  # Access the i-th long in the file (logically), or -1 at EOF.
+  sub get {
+    my ($self, $idx) = @_;
+    my $slots = $self->{slots};
+    while ($#$slots >= 0) {
+      if ($idx < $self->{base}) {
+        # The only time we expect a reference to $slots[$i - something]
+        # after referencing $slots[$i] is reading the very first header.
+        # Since $stride > |header|, that shouldn't cause any lookback
+        # errors.  And everything after the header is sequential.
+        print STDERR "Unexpected look-back reading CPU profile";
+        return -1;   # shrug, don't know what better to return
+      } elsif ($idx > $self->{base} + $#$slots) {
+        $self->overflow();
+      } else {
+        return $slots->[$idx - $self->{base}];
+      }
+    }
+    # If we get here, $slots is [], which means we've reached EOF
+    return -1;  # unique since slots is supposed to hold unsigned numbers
+  }
+}
+
+# Reads the top, 'header' section of a profile, and returns the last
+# line of the header, commonly called a 'header line'.  The header
+# section of a profile consists of zero or more 'command' lines that
+# are instructions to pprof, which pprof executes when reading the
+# header.  All 'command' lines start with a %.  After the command
+# lines is the 'header line', which is a profile-specific line that
+# indicates what type of profile it is, and perhaps other global
+# information about the profile.  For instance, here's a header line
+# for a heap profile:
+#   heap profile:     53:    38236 [  5525:  1284029] @ heapprofile
+# For historical reasons, the CPU profile does not contain a text-
+# readable header line.  If the profile looks like a CPU profile,
+# this function returns "".  If no header line could be found, this
+# function returns undef.
+#
+# The following commands are recognized:
+#   %warn -- emit the rest of this line to stderr, prefixed by 'WARNING:'
+#
+# The input file should be in binmode.
+sub ReadProfileHeader {
+  local *PROFILE = shift;
+  my $firstchar = "";
+  my $line = "";
+  read(PROFILE, $firstchar, 1);
+  seek(PROFILE, -1, 1);                    # unread the firstchar
+  if ($firstchar !~ /[[:print:]]/) {       # is not a text character
+    return "";
+  }
+  while (defined($line = )) {
+    $line =~ s/\r//g;   # turn windows-looking lines into unix-looking lines
+    if ($line =~ /^%warn\s+(.*)/) {        # 'warn' command
+      # Note this matches both '%warn blah\n' and '%warn\n'.
+      print STDERR "WARNING: $1\n";        # print the rest of the line
+    } elsif ($line =~ /^%/) {
+      print STDERR "Ignoring unknown command from profile header: $line";
+    } else {
+      # End of commands, must be the header line.
+      return $line;
+    }
+  }
+  return undef;     # got to EOF without seeing a header line
+}
+
+sub IsSymbolizedProfileFile {
+  my $file_name = shift;
+  if (!(-e $file_name) || !(-r $file_name)) {
+    return 0;
+  }
+  # Check if the file contains a symbol-section marker.
+  open(TFILE, "<$file_name");
+  binmode TFILE;
+  my $firstline = ReadProfileHeader(*TFILE);
+  close(TFILE);
+  if (!$firstline) {
+    return 0;
+  }
+  $SYMBOL_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $symbol_marker = $&;
+  return $firstline =~ /^--- *$symbol_marker/;
+}
+
+# Parse profile generated by common/profiler.cc and return a reference
+# to a map:
+#      $result->{version}     Version number of profile file
+#      $result->{period}      Sampling period (in microseconds)
+#      $result->{profile}     Profile object
+#      $result->{map}         Memory map info from profile
+#      $result->{pcs}         Hash of all PC values seen, key is hex address
+sub ReadProfile {
+  my $prog = shift;
+  my $fname = shift;
+  my $result;            # return value
+
+  $CONTENTION_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $contention_marker = $&;
+  $GROWTH_PAGE  =~ m,[^/]+$,;    # matches everything after the last slash
+  my $growth_marker = $&;
+  $SYMBOL_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $symbol_marker = $&;
+  $PROFILE_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $profile_marker = $&;
+
+  # Look at first line to see if it is a heap or a CPU profile.
+  # CPU profile may start with no header at all, and just binary data
+  # (starting with \0\0\0\0) -- in that case, don't try to read the
+  # whole firstline, since it may be gigabytes(!) of data.
+  open(PROFILE, "<$fname") || error("$fname: $!\n");
+  binmode PROFILE;      # New perls do UTF-8 processing
+  my $header = ReadProfileHeader(*PROFILE);
+  if (!defined($header)) {   # means "at EOF"
+    error("Profile is empty.\n");
+  }
+
+  my $symbols;
+  if ($header =~ m/^--- *$symbol_marker/o) {
+    # Verify that the user asked for a symbolized profile
+    if (!$main::use_symbolized_profile) {
+      # we have both a binary and symbolized profiles, abort
+      error("FATAL ERROR: Symbolized profile\n   $fname\ncannot be used with " .
+            "a binary arg. Try again without passing\n   $prog\n");
+    }
+    # Read the symbol section of the symbolized profile file.
+    $symbols = ReadSymbols(*PROFILE{IO});
+    # Read the next line to get the header for the remaining profile.
+    $header = ReadProfileHeader(*PROFILE) || "";
+  }
+
+  $main::profile_type = '';
+  if ($header =~ m/^heap profile:.*$growth_marker/o) {
+    $main::profile_type = 'growth';
+    $result =  ReadHeapProfile($prog, *PROFILE, $header);
+  } elsif ($header =~ m/^heap profile:/) {
+    $main::profile_type = 'heap';
+    $result =  ReadHeapProfile($prog, *PROFILE, $header);
+  } elsif ($header =~ m/^--- *$contention_marker/o) {
+    $main::profile_type = 'contention';
+    $result = ReadSynchProfile($prog, *PROFILE);
+  } elsif ($header =~ m/^--- *Stacks:/) {
+    print STDERR
+      "Old format contention profile: mistakenly reports " .
+      "condition variable signals as lock contentions.\n";
+    $main::profile_type = 'contention';
+    $result = ReadSynchProfile($prog, *PROFILE);
+  } elsif ($header =~ m/^--- *$profile_marker/) {
+    # the binary cpu profile data starts immediately after this line
+    $main::profile_type = 'cpu';
+    $result = ReadCPUProfile($prog, $fname, *PROFILE);
+  } else {
+    if (defined($symbols)) {
+      # a symbolized profile contains a format we don't recognize, bail out
+      error("$fname: Cannot recognize profile section after symbols.\n");
+    }
+    # no ascii header present -- must be a CPU profile
+    $main::profile_type = 'cpu';
+    $result = ReadCPUProfile($prog, $fname, *PROFILE);
+  }
+
+  close(PROFILE);
+
+  # if we got symbols along with the profile, return those as well
+  if (defined($symbols)) {
+    $result->{symbols} = $symbols;
+  }
+
+  return $result;
+}
+
+# Subtract one from caller pc so we map back to call instr.
+# However, don't do this if we're reading a symbolized profile
+# file, in which case the subtract-one was done when the file
+# was written.
+#
+# We apply the same logic to all readers, though ReadCPUProfile uses an
+# independent implementation.
+sub FixCallerAddresses {
+  my $stack = shift;
+  if ($main::use_symbolized_profile) {
+    return $stack;
+  } else {
+    $stack =~ /(\s)/;
+    my $delimiter = $1;
+    my @addrs = split(' ', $stack);
+    my @fixedaddrs;
+    $#fixedaddrs = $#addrs;
+    if ($#addrs >= 0) {
+      $fixedaddrs[0] = $addrs[0];
+    }
+    for (my $i = 1; $i <= $#addrs; $i++) {
+      $fixedaddrs[$i] = AddressSub($addrs[$i], "0x1");
+    }
+    return join $delimiter, @fixedaddrs;
+  }
+}
+
+# CPU profile reader
+sub ReadCPUProfile {
+  my $prog = shift;
+  my $fname = shift;       # just used for logging
+  local *PROFILE = shift;
+  my $version;
+  my $period;
+  my $i;
+  my $profile = {};
+  my $pcs = {};
+
+  # Parse string into array of slots.
+  my $slots = CpuProfileStream->new(*PROFILE, $fname);
+
+  # Read header.  The current header version is a 5-element structure
+  # containing:
+  #   0: header count (always 0)
+  #   1: header "words" (after this one: 3)
+  #   2: format version (0)
+  #   3: sampling period (usec)
+  #   4: unused padding (always 0)
+  if ($slots->get(0) != 0 ) {
+    error("$fname: not a profile file, or old format profile file\n");
+  }
+  $i = 2 + $slots->get(1);
+  $version = $slots->get(2);
+  $period = $slots->get(3);
+  # Do some sanity checking on these header values.
+  if ($version > (2**32) || $period > (2**32) || $i > (2**32) || $i < 5) {
+    error("$fname: not a profile file, or corrupted profile file\n");
+  }
+
+  # Parse profile
+  while ($slots->get($i) != -1) {
+    my $n = $slots->get($i++);
+    my $d = $slots->get($i++);
+    if ($d > (2**16)) {  # TODO(csilvers): what's a reasonable max-stack-depth?
+      my $addr = sprintf("0%o", $i * ($address_length == 8 ? 4 : 8));
+      print STDERR "At index $i (address $addr):\n";
+      error("$fname: stack trace depth >= 2**32\n");
+    }
+    if ($slots->get($i) == 0) {
+      # End of profile data marker
+      $i += $d;
+      last;
+    }
+
+    # Make key out of the stack entries
+    my @k = ();
+    for (my $j = 0; $j < $d; $j++) {
+      my $pc = $slots->get($i+$j);
+      # Subtract one from caller pc so we map back to call instr.
+      # However, don't do this if we're reading a symbolized profile
+      # file, in which case the subtract-one was done when the file
+      # was written.
+      if ($j > 0 && !$main::use_symbolized_profile) {
+        $pc--;
+      }
+      $pc = sprintf("%0*x", $address_length, $pc);
+      $pcs->{$pc} = 1;
+      push @k, $pc;
+    }
+
+    AddEntry($profile, (join "\n", @k), $n);
+    $i += $d;
+  }
+
+  # Parse map
+  my $map = '';
+  seek(PROFILE, $i * ($address_length / 2), 0);
+  read(PROFILE, $map, (stat PROFILE)[7]);
+
+  my $r = {};
+  $r->{version} = $version;
+  $r->{period} = $period;
+  $r->{profile} = $profile;
+  $r->{libs} = ParseLibraries($prog, $map, $pcs);
+  $r->{pcs} = $pcs;
+
+  return $r;
+}
+
+sub ReadHeapProfile {
+  my $prog = shift;
+  local *PROFILE = shift;
+  my $header = shift;
+
+  my $index = 1;
+  if ($main::opt_inuse_space) {
+    $index = 1;
+  } elsif ($main::opt_inuse_objects) {
+    $index = 0;
+  } elsif ($main::opt_alloc_space) {
+    $index = 3;
+  } elsif ($main::opt_alloc_objects) {
+    $index = 2;
+  }
+
+  # Find the type of this profile.  The header line looks like:
+  #    heap profile:   1246:  8800744 [  1246:  8800744] @ /266053
+  # There are two pairs , the first inuse objects/space, and the
+  # second allocated objects/space.  This is followed optionally by a profile
+  # type, and if that is present, optionally by a sampling frequency.
+  # For remote heap profiles (v1):
+  # The interpretation of the sampling frequency is that the profiler, for
+  # each sample, calculates a uniformly distributed random integer less than
+  # the given value, and records the next sample after that many bytes have
+  # been allocated.  Therefore, the expected sample interval is half of the
+  # given frequency.  By default, if not specified, the expected sample
+  # interval is 128KB.  Only remote-heap-page profiles are adjusted for
+  # sample size.
+  # For remote heap profiles (v2):
+  # The sampling frequency is the rate of a Poisson process. This means that
+  # the probability of sampling an allocation of size X with sampling rate Y
+  # is 1 - exp(-X/Y)
+  # For version 2, a typical header line might look like this:
+  # heap profile:   1922: 127792360 [  1922: 127792360] @ _v2/524288
+  # the trailing number (524288) is the sampling rate. (Version 1 showed
+  # double the 'rate' here)
+  my $sampling_algorithm = 0;
+  my $sample_adjustment = 0;
+  chomp($header);
+  my $type = "unknown";
+  if ($header =~ m"^heap profile:\s*(\d+):\s+(\d+)\s+\[\s*(\d+):\s+(\d+)\](\s*@\s*([^/]*)(/(\d+))?)?") {
+    if (defined($6) && ($6 ne '')) {
+      $type = $6;
+      my $sample_period = $8;
+      # $type is "heapprofile" for profiles generated by the
+      # heap-profiler, and either "heap" or "heap_v2" for profiles
+      # generated by sampling directly within tcmalloc.  It can also
+      # be "growth" for heap-growth profiles.  The first is typically
+      # found for profiles generated locally, and the others for
+      # remote profiles.
+      if (($type eq "heapprofile") || ($type !~ /heap/) ) {
+        # No need to adjust for the sampling rate with heap-profiler-derived data
+        $sampling_algorithm = 0;
+      } elsif ($type =~ /_v2/) {
+        $sampling_algorithm = 2;     # version 2 sampling
+        if (defined($sample_period) && ($sample_period ne '')) {
+          $sample_adjustment = int($sample_period);
+        }
+      } else {
+        $sampling_algorithm = 1;     # version 1 sampling
+        if (defined($sample_period) && ($sample_period ne '')) {
+          $sample_adjustment = int($sample_period)/2;
+        }
+      }
+    } else {
+      # We detect whether or not this is a remote-heap profile by checking
+      # that the total-allocated stats ($n2,$s2) are exactly the
+      # same as the in-use stats ($n1,$s1).  It is remotely conceivable
+      # that a non-remote-heap profile may pass this check, but it is hard
+      # to imagine how that could happen.
+      # In this case it's so old it's guaranteed to be remote-heap version 1.
+      my ($n1, $s1, $n2, $s2) = ($1, $2, $3, $4);
+      if (($n1 == $n2) && ($s1 == $s2)) {
+        # This is likely to be a remote-heap based sample profile
+        $sampling_algorithm = 1;
+      }
+    }
+  }
+
+  if ($sampling_algorithm > 0) {
+    # For remote-heap generated profiles, adjust the counts and sizes to
+    # account for the sample rate (we sample once every 128KB by default).
+    if ($sample_adjustment == 0) {
+      # Turn on profile adjustment.
+      $sample_adjustment = 128*1024;
+      print STDERR "Adjusting heap profiles for 1-in-128KB sampling rate\n";
+    } else {
+      printf STDERR ("Adjusting heap profiles for 1-in-%d sampling rate\n",
+                     $sample_adjustment);
+    }
+    if ($sampling_algorithm > 1) {
+      # We don't bother printing anything for the original version (version 1)
+      printf STDERR "Heap version $sampling_algorithm\n";
+    }
+  }
+
+  my $profile = {};
+  my $pcs = {};
+  my $map = "";
+
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    if (/^MAPPED_LIBRARIES:/) {
+      # Read the /proc/self/maps data
+      while () {
+        s/\r//g;         # turn windows-looking lines into unix-looking lines
+        $map .= $_;
+      }
+      last;
+    }
+
+    if (/^--- Memory map:/) {
+      # Read /proc/self/maps data as formatted by DumpAddressMap()
+      my $buildvar = "";
+      while () {
+        s/\r//g;         # turn windows-looking lines into unix-looking lines
+        # Parse "build=" specification if supplied
+        if (m/^\s*build=(.*)\n/) {
+          $buildvar = $1;
+        }
+
+        # Expand "$build" variable if available
+        $_ =~ s/\$build\b/$buildvar/g;
+
+        $map .= $_;
+      }
+      last;
+    }
+
+    # Read entry of the form:
+    #  :  [: ] @ a1 a2 a3 ... an
+    s/^\s*//;
+    s/\s*$//;
+    if (m/^\s*(\d+):\s+(\d+)\s+\[\s*(\d+):\s+(\d+)\]\s+@\s+(.*)$/) {
+      my $stack = $5;
+      my ($n1, $s1, $n2, $s2) = ($1, $2, $3, $4);
+
+      if ($sample_adjustment) {
+        if ($sampling_algorithm == 2) {
+          # Remote-heap version 2
+          # The sampling frequency is the rate of a Poisson process.
+          # This means that the probability of sampling an allocation of
+          # size X with sampling rate Y is 1 - exp(-X/Y)
+          if ($n1 != 0) {
+            my $ratio = (($s1*1.0)/$n1)/($sample_adjustment);
+            my $scale_factor = 1/(1 - exp(-$ratio));
+            $n1 *= $scale_factor;
+            $s1 *= $scale_factor;
+          }
+          if ($n2 != 0) {
+            my $ratio = (($s2*1.0)/$n2)/($sample_adjustment);
+            my $scale_factor = 1/(1 - exp(-$ratio));
+            $n2 *= $scale_factor;
+            $s2 *= $scale_factor;
+          }
+        } else {
+          # Remote-heap version 1
+          my $ratio;
+          $ratio = (($s1*1.0)/$n1)/($sample_adjustment);
+          if ($ratio < 1) {
+            $n1 /= $ratio;
+            $s1 /= $ratio;
+          }
+          $ratio = (($s2*1.0)/$n2)/($sample_adjustment);
+          if ($ratio < 1) {
+            $n2 /= $ratio;
+            $s2 /= $ratio;
+          }
+        }
+      }
+
+      my @counts = ($n1, $s1, $n2, $s2);
+      $stack = FixCallerAddresses($stack);
+      push @stackTraces, "$n1 $s1 $n2 $s2 $stack";
+      AddEntries($profile, $pcs, $stack, $counts[$index]);
+    }
+  }
+
+  my $r = {};
+  $r->{version} = "heap";
+  $r->{period} = 1;
+  $r->{profile} = $profile;
+  $r->{libs} = ParseLibraries($prog, $map, $pcs);
+  $r->{pcs} = $pcs;
+  return $r;
+}
+
+sub ReadSynchProfile {
+  my $prog = shift;
+  local *PROFILE = shift;
+  my $header = shift;
+
+  my $map = '';
+  my $profile = {};
+  my $pcs = {};
+  my $sampling_period = 1;
+  my $cyclespernanosec = 2.8;   # Default assumption for old binaries
+  my $seen_clockrate = 0;
+  my $line;
+
+  my $index = 0;
+  if ($main::opt_total_delay) {
+    $index = 0;
+  } elsif ($main::opt_contentions) {
+    $index = 1;
+  } elsif ($main::opt_mean_delay) {
+    $index = 2;
+  }
+
+  while ( $line =  ) {
+    $line =~ s/\r//g;      # turn windows-looking lines into unix-looking lines
+    if ( $line =~ /^\s*(\d+)\s+(\d+) \@\s*(.*?)\s*$/ ) {
+      my ($cycles, $count, $stack) = ($1, $2, $3);
+
+      # Convert cycles to nanoseconds
+      $cycles /= $cyclespernanosec;
+
+      # Adjust for sampling done by application
+      $cycles *= $sampling_period;
+      $count *= $sampling_period;
+
+      my @values = ($cycles, $count, $cycles / $count);
+      AddEntries($profile, $pcs, FixCallerAddresses($stack), $values[$index]);
+
+    } elsif ( $line =~ /^(slow release).*thread \d+  \@\s*(.*?)\s*$/ ||
+              $line =~ /^\s*(\d+) \@\s*(.*?)\s*$/ ) {
+      my ($cycles, $stack) = ($1, $2);
+      if ($cycles !~ /^\d+$/) {
+        next;
+      }
+
+      # Convert cycles to nanoseconds
+      $cycles /= $cyclespernanosec;
+
+      # Adjust for sampling done by application
+      $cycles *= $sampling_period;
+
+      AddEntries($profile, $pcs, FixCallerAddresses($stack), $cycles);
+
+    } elsif ( $line =~ m/^([a-z][^=]*)=(.*)$/ ) {
+      my ($variable, $value) = ($1,$2);
+      for ($variable, $value) {
+        s/^\s+//;
+        s/\s+$//;
+      }
+      if ($variable eq "cycles/second") {
+        $cyclespernanosec = $value / 1e9;
+        $seen_clockrate = 1;
+      } elsif ($variable eq "sampling period") {
+        $sampling_period = $value;
+      } elsif ($variable eq "ms since reset") {
+        # Currently nothing is done with this value in pprof
+        # So we just silently ignore it for now
+      } elsif ($variable eq "discarded samples") {
+        # Currently nothing is done with this value in pprof
+        # So we just silently ignore it for now
+      } else {
+        printf STDERR ("Ignoring unnknown variable in /contention output: " .
+                       "'%s' = '%s'\n",$variable,$value);
+      }
+    } else {
+      # Memory map entry
+      $map .= $line;
+    }
+  }
+
+  if (!$seen_clockrate) {
+    printf STDERR ("No cycles/second entry in profile; Guessing %.1f GHz\n",
+                   $cyclespernanosec);
+  }
+
+  my $r = {};
+  $r->{version} = 0;
+  $r->{period} = $sampling_period;
+  $r->{profile} = $profile;
+  $r->{libs} = ParseLibraries($prog, $map, $pcs);
+  $r->{pcs} = $pcs;
+  return $r;
+}
+
+# Given a hex value in the form "0x1abcd" or "1abcd", return either
+# "0001abcd" or "000000000001abcd", depending on the current (global)
+# address length.
+sub HexExtend {
+  my $addr = shift;
+
+  $addr =~ s/^(0x)?0*//;
+  my $zeros_needed = $address_length - length($addr);
+  if ($zeros_needed < 0) {
+    printf STDERR "Warning: address $addr is longer than address length $address_length\n";
+    return $addr;
+  }
+  return ("0" x $zeros_needed) . $addr;
+}
+
+##### Symbol extraction #####
+
+# Aggressively search the lib_prefix values for the given library
+# If all else fails, just return the name of the library unmodified.
+# If the lib_prefix is "/my/path,/other/path" and $file is "/lib/dir/mylib.so"
+# it will search the following locations in this order, until it finds a file:
+#   /my/path/lib/dir/mylib.so
+#   /other/path/lib/dir/mylib.so
+#   /my/path/dir/mylib.so
+#   /other/path/dir/mylib.so
+#   /my/path/mylib.so
+#   /other/path/mylib.so
+#   /lib/dir/mylib.so              (returned as last resort)
+sub FindLibrary {
+  my $file = shift;
+  my $suffix = $file;
+
+  # Search for the library as described above
+  do {
+    foreach my $prefix (@prefix_list) {
+      my $fullpath = $prefix . $suffix;
+      if (-e $fullpath) {
+        return $fullpath;
+      }
+    }
+  } while ($suffix =~ s|^/[^/]+/|/|);
+  return $file;
+}
+
+# Return path to library with debugging symbols.
+# For libc libraries, the copy in /usr/lib/debug contains debugging symbols
+sub DebuggingLibrary {
+  my $file = shift;
+  if ($file =~ m|^/| && -f "/usr/lib/debug$file") {
+    return "/usr/lib/debug$file";
+  }
+  if ($file =~ m|^/| && -f "/usr/lib/debug$file.debug") {
+    return "/usr/lib/debug$file.debug";
+  }
+  return undef;
+}
+
+# Parse text section header of a library using objdump
+sub ParseTextSectionHeaderFromObjdump {
+  my $lib = shift;
+
+  my $size = undef;
+  my $vma;
+  my $file_offset;
+  # Get objdump output from the library file to figure out how to
+  # map between mapped addresses and addresses in the library.
+  my $cmd = ShellEscape($obj_tool_map{"objdump"}, "-h", $lib);
+  open(OBJDUMP, "$cmd |") || error("$cmd: $!\n");
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    # Idx Name          Size      VMA       LMA       File off  Algn
+    #  10 .text         00104b2c  420156f0  420156f0  000156f0  2**4
+    # For 64-bit objects, VMA and LMA will be 16 hex digits, size and file
+    # offset may still be 8.  But AddressSub below will still handle that.
+    my @x = split;
+    if (($#x >= 6) && ($x[1] eq '.text')) {
+      $size = $x[2];
+      $vma = $x[3];
+      $file_offset = $x[5];
+      last;
+    }
+  }
+  close(OBJDUMP);
+
+  if (!defined($size)) {
+    return undef;
+  }
+
+  my $r = {};
+  $r->{size} = $size;
+  $r->{vma} = $vma;
+  $r->{file_offset} = $file_offset;
+
+  return $r;
+}
+
+# Parse text section header of a library using otool (on OS X)
+sub ParseTextSectionHeaderFromOtool {
+  my $lib = shift;
+
+  my $size = undef;
+  my $vma = undef;
+  my $file_offset = undef;
+  # Get otool output from the library file to figure out how to
+  # map between mapped addresses and addresses in the library.
+  my $command = ShellEscape($obj_tool_map{"otool"}, "-l", $lib);
+  open(OTOOL, "$command |") || error("$command: $!\n");
+  my $cmd = "";
+  my $sectname = "";
+  my $segname = "";
+  foreach my $line () {
+    $line =~ s/\r//g;      # turn windows-looking lines into unix-looking lines
+    # Load command <#>
+    #       cmd LC_SEGMENT
+    # [...]
+    # Section
+    #   sectname __text
+    #    segname __TEXT
+    #       addr 0x000009f8
+    #       size 0x00018b9e
+    #     offset 2552
+    #      align 2^2 (4)
+    # We will need to strip off the leading 0x from the hex addresses,
+    # and convert the offset into hex.
+    if ($line =~ /Load command/) {
+      $cmd = "";
+      $sectname = "";
+      $segname = "";
+    } elsif ($line =~ /Section/) {
+      $sectname = "";
+      $segname = "";
+    } elsif ($line =~ /cmd (\w+)/) {
+      $cmd = $1;
+    } elsif ($line =~ /sectname (\w+)/) {
+      $sectname = $1;
+    } elsif ($line =~ /segname (\w+)/) {
+      $segname = $1;
+    } elsif (!(($cmd eq "LC_SEGMENT" || $cmd eq "LC_SEGMENT_64") &&
+               $sectname eq "__text" &&
+               $segname eq "__TEXT")) {
+      next;
+    } elsif ($line =~ /\baddr 0x([0-9a-fA-F]+)/) {
+      $vma = $1;
+    } elsif ($line =~ /\bsize 0x([0-9a-fA-F]+)/) {
+      $size = $1;
+    } elsif ($line =~ /\boffset ([0-9]+)/) {
+      $file_offset = sprintf("%016x", $1);
+    }
+    if (defined($vma) && defined($size) && defined($file_offset)) {
+      last;
+    }
+  }
+  close(OTOOL);
+
+  if (!defined($vma) || !defined($size) || !defined($file_offset)) {
+     return undef;
+  }
+
+  my $r = {};
+  $r->{size} = $size;
+  $r->{vma} = $vma;
+  $r->{file_offset} = $file_offset;
+
+  return $r;
+}
+
+sub ParseTextSectionHeader {
+  # obj_tool_map("otool") is only defined if we're in a Mach-O environment
+  if (defined($obj_tool_map{"otool"})) {
+    my $r = ParseTextSectionHeaderFromOtool(@_);
+    if (defined($r)){
+      return $r;
+    }
+  }
+  # If otool doesn't work, or we don't have it, fall back to objdump
+  return ParseTextSectionHeaderFromObjdump(@_);
+}
+
+# Split /proc/pid/maps dump into a list of libraries
+sub ParseLibraries {
+  return if $main::use_symbol_page;  # We don't need libraries info.
+  my $prog = Cwd::abs_path(shift);
+  my $map = shift;
+  my $pcs = shift;
+
+  my $result = [];
+  my $h = "[a-f0-9]+";
+  my $zero_offset = HexExtend("0");
+
+  my $buildvar = "";
+  foreach my $l (split("\n", $map)) {
+    if ($l =~ m/^\s*build=(.*)$/) {
+      $buildvar = $1;
+    }
+
+    my $start;
+    my $finish;
+    my $offset;
+    my $lib;
+    if ($l =~ /^($h)-($h)\s+..x.\s+($h)\s+\S+:\S+\s+\d+\s+(.+\.(so|dll|dylib|bundle|node)((\.\d+)+\w*(\.\d+){0,3})?)$/i) {
+      # Full line from /proc/self/maps.  Example:
+      #   40000000-40015000 r-xp 00000000 03:01 12845071   /lib/ld-2.3.2.so
+      $start = HexExtend($1);
+      $finish = HexExtend($2);
+      $offset = HexExtend($3);
+      $lib = $4;
+      $lib =~ s|\\|/|g;     # turn windows-style paths into unix-style paths
+    } elsif ($l =~ /^\s*($h)-($h):\s*(\S+\.so(\.\d+)*)/) {
+      # Cooked line from DumpAddressMap.  Example:
+      #   40000000-40015000: /lib/ld-2.3.2.so
+      $start = HexExtend($1);
+      $finish = HexExtend($2);
+      $offset = $zero_offset;
+      $lib = $3;
+    } elsif (($l =~ /^($h)-($h)\s+..x.\s+($h)\s+\S+:\S+\s+\d+\s+(\S+)$/i) && ($4 eq $prog)) {
+      # PIEs and address space randomization do not play well with our
+      # default assumption that main executable is at lowest
+      # addresses. So we're detecting main executable in
+      # /proc/self/maps as well.
+      $start = HexExtend($1);
+      $finish = HexExtend($2);
+      $offset = HexExtend($3);
+      $lib = $4;
+      $lib =~ s|\\|/|g;     # turn windows-style paths into unix-style paths
+    } else {
+      next;
+    }
+
+    # Expand "$build" variable if available
+    $lib =~ s/\$build\b/$buildvar/g;
+
+    $lib = FindLibrary($lib);
+
+    # Check for pre-relocated libraries, which use pre-relocated symbol tables
+    # and thus require adjusting the offset that we'll use to translate
+    # VM addresses into symbol table addresses.
+    # Only do this if we're not going to fetch the symbol table from a
+    # debugging copy of the library.
+    if (!DebuggingLibrary($lib)) {
+      my $text = ParseTextSectionHeader($lib);
+      if (defined($text)) {
+         my $vma_offset = AddressSub($text->{vma}, $text->{file_offset});
+         $offset = AddressAdd($offset, $vma_offset);
+      }
+    }
+
+    push(@{$result}, [$lib, $start, $finish, $offset]);
+  }
+
+  # Append special entry for additional library (not relocated)
+  if ($main::opt_lib ne "") {
+    my $text = ParseTextSectionHeader($main::opt_lib);
+    if (defined($text)) {
+       my $start = $text->{vma};
+       my $finish = AddressAdd($start, $text->{size});
+
+       push(@{$result}, [$main::opt_lib, $start, $finish, $start]);
+    }
+  }
+
+  # Append special entry for the main program.  This covers
+  # 0..max_pc_value_seen, so that we assume pc values not found in one
+  # of the library ranges will be treated as coming from the main
+  # program binary.
+  my $min_pc = HexExtend("0");
+  my $max_pc = $min_pc;          # find the maximal PC value in any sample
+  foreach my $pc (keys(%{$pcs})) {
+    if (HexExtend($pc) gt $max_pc) { $max_pc = HexExtend($pc); }
+  }
+  push(@{$result}, [$prog, $min_pc, $max_pc, $zero_offset]);
+
+  return $result;
+}
+
+# Add two hex addresses of length $address_length.
+# Run pprof --test for unit test if this is changed.
+sub AddressAdd {
+  my $addr1 = shift;
+  my $addr2 = shift;
+  my $sum;
+
+  if ($address_length == 8) {
+    # Perl doesn't cope with wraparound arithmetic, so do it explicitly:
+    $sum = (hex($addr1)+hex($addr2)) % (0x10000000 * 16);
+    return sprintf("%08x", $sum);
+
+  } else {
+    # Do the addition in 7-nibble chunks to trivialize carry handling.
+
+    if ($main::opt_debug and $main::opt_test) {
+      print STDERR "AddressAdd $addr1 + $addr2 = ";
+    }
+
+    my $a1 = substr($addr1,-7);
+    $addr1 = substr($addr1,0,-7);
+    my $a2 = substr($addr2,-7);
+    $addr2 = substr($addr2,0,-7);
+    $sum = hex($a1) + hex($a2);
+    my $c = 0;
+    if ($sum > 0xfffffff) {
+      $c = 1;
+      $sum -= 0x10000000;
+    }
+    my $r = sprintf("%07x", $sum);
+
+    $a1 = substr($addr1,-7);
+    $addr1 = substr($addr1,0,-7);
+    $a2 = substr($addr2,-7);
+    $addr2 = substr($addr2,0,-7);
+    $sum = hex($a1) + hex($a2) + $c;
+    $c = 0;
+    if ($sum > 0xfffffff) {
+      $c = 1;
+      $sum -= 0x10000000;
+    }
+    $r = sprintf("%07x", $sum) . $r;
+
+    $sum = hex($addr1) + hex($addr2) + $c;
+    if ($sum > 0xff) { $sum -= 0x100; }
+    $r = sprintf("%02x", $sum) . $r;
+
+    if ($main::opt_debug and $main::opt_test) { print STDERR "$r\n"; }
+
+    return $r;
+  }
+}
+
+
+# Subtract two hex addresses of length $address_length.
+# Run pprof --test for unit test if this is changed.
+sub AddressSub {
+  my $addr1 = shift;
+  my $addr2 = shift;
+  my $diff;
+
+  if ($address_length == 8) {
+    # Perl doesn't cope with wraparound arithmetic, so do it explicitly:
+    $diff = (hex($addr1)-hex($addr2)) % (0x10000000 * 16);
+    return sprintf("%08x", $diff);
+
+  } else {
+    # Do the addition in 7-nibble chunks to trivialize borrow handling.
+    # if ($main::opt_debug) { print STDERR "AddressSub $addr1 - $addr2 = "; }
+
+    my $a1 = hex(substr($addr1,-7));
+    $addr1 = substr($addr1,0,-7);
+    my $a2 = hex(substr($addr2,-7));
+    $addr2 = substr($addr2,0,-7);
+    my $b = 0;
+    if ($a2 > $a1) {
+      $b = 1;
+      $a1 += 0x10000000;
+    }
+    $diff = $a1 - $a2;
+    my $r = sprintf("%07x", $diff);
+
+    $a1 = hex(substr($addr1,-7));
+    $addr1 = substr($addr1,0,-7);
+    $a2 = hex(substr($addr2,-7)) + $b;
+    $addr2 = substr($addr2,0,-7);
+    $b = 0;
+    if ($a2 > $a1) {
+      $b = 1;
+      $a1 += 0x10000000;
+    }
+    $diff = $a1 - $a2;
+    $r = sprintf("%07x", $diff) . $r;
+
+    $a1 = hex($addr1);
+    $a2 = hex($addr2) + $b;
+    if ($a2 > $a1) { $a1 += 0x100; }
+    $diff = $a1 - $a2;
+    $r = sprintf("%02x", $diff) . $r;
+
+    # if ($main::opt_debug) { print STDERR "$r\n"; }
+
+    return $r;
+  }
+}
+
+# Increment a hex addresses of length $address_length.
+# Run pprof --test for unit test if this is changed.
+sub AddressInc {
+  my $addr = shift;
+  my $sum;
+
+  if ($address_length == 8) {
+    # Perl doesn't cope with wraparound arithmetic, so do it explicitly:
+    $sum = (hex($addr)+1) % (0x10000000 * 16);
+    return sprintf("%08x", $sum);
+
+  } else {
+    # Do the addition in 7-nibble chunks to trivialize carry handling.
+    # We are always doing this to step through the addresses in a function,
+    # and will almost never overflow the first chunk, so we check for this
+    # case and exit early.
+
+    # if ($main::opt_debug) { print STDERR "AddressInc $addr1 = "; }
+
+    my $a1 = substr($addr,-7);
+    $addr = substr($addr,0,-7);
+    $sum = hex($a1) + 1;
+    my $r = sprintf("%07x", $sum);
+    if ($sum <= 0xfffffff) {
+      $r = $addr . $r;
+      # if ($main::opt_debug) { print STDERR "$r\n"; }
+      return HexExtend($r);
+    } else {
+      $r = "0000000";
+    }
+
+    $a1 = substr($addr,-7);
+    $addr = substr($addr,0,-7);
+    $sum = hex($a1) + 1;
+    $r = sprintf("%07x", $sum) . $r;
+    if ($sum <= 0xfffffff) {
+      $r = $addr . $r;
+      # if ($main::opt_debug) { print STDERR "$r\n"; }
+      return HexExtend($r);
+    } else {
+      $r = "00000000000000";
+    }
+
+    $sum = hex($addr) + 1;
+    if ($sum > 0xff) { $sum -= 0x100; }
+    $r = sprintf("%02x", $sum) . $r;
+
+    # if ($main::opt_debug) { print STDERR "$r\n"; }
+    return $r;
+  }
+}
+
+# Extract symbols for all PC values found in profile
+sub ExtractSymbols {
+  my $libs = shift;
+  my $pcset = shift;
+
+  my $symbols = {};
+
+  # Map each PC value to the containing library.  To make this faster,
+  # we sort libraries by their starting pc value (highest first), and
+  # advance through the libraries as we advance the pc.  Sometimes the
+  # addresses of libraries may overlap with the addresses of the main
+  # binary, so to make sure the libraries 'win', we iterate over the
+  # libraries in reverse order (which assumes the binary doesn't start
+  # in the middle of a library, which seems a fair assumption).
+  my @pcs = (sort { $a cmp $b } keys(%{$pcset}));  # pcset is 0-extended strings
+  foreach my $lib (sort {$b->[1] cmp $a->[1]} @{$libs}) {
+    my $libname = $lib->[0];
+    my $start = $lib->[1];
+    my $finish = $lib->[2];
+    my $offset = $lib->[3];
+
+    # Get list of pcs that belong in this library.
+    my $contained = [];
+    my ($start_pc_index, $finish_pc_index);
+    # Find smallest finish_pc_index such that $finish < $pc[$finish_pc_index].
+    for ($finish_pc_index = $#pcs + 1; $finish_pc_index > 0;
+         $finish_pc_index--) {
+      last if $pcs[$finish_pc_index - 1] le $finish;
+    }
+    # Find smallest start_pc_index such that $start <= $pc[$start_pc_index].
+    for ($start_pc_index = $finish_pc_index; $start_pc_index > 0;
+         $start_pc_index--) {
+      last if $pcs[$start_pc_index - 1] lt $start;
+    }
+    # This keeps PC values higher than $pc[$finish_pc_index] in @pcs,
+    # in case there are overlaps in libraries and the main binary.
+    @{$contained} = splice(@pcs, $start_pc_index,
+                           $finish_pc_index - $start_pc_index);
+    # Map to symbols
+    MapToSymbols($libname, AddressSub($start, $offset), $contained, $symbols);
+  }
+
+  return $symbols;
+}
+
+# Map list of PC values to symbols for a given image
+sub MapToSymbols {
+  my $image = shift;
+  my $offset = shift;
+  my $pclist = shift;
+  my $symbols = shift;
+
+  my $debug = 0;
+
+  # For libc (and other) libraries, the copy in /usr/lib/debug contains debugging symbols
+  my $debugging = DebuggingLibrary($image);
+  if ($debugging) {
+    $image = $debugging;
+  }
+
+  # Ignore empty binaries
+  if ($#{$pclist} < 0) { return; }
+
+  # Figure out the addr2line command to use
+  my $addr2line = $obj_tool_map{"addr2line"};
+  my $cmd = ShellEscape($addr2line, "-f", "-C", "-e", $image);
+  if (exists $obj_tool_map{"addr2line_pdb"}) {
+    $addr2line = $obj_tool_map{"addr2line_pdb"};
+    $cmd = ShellEscape($addr2line, "--demangle", "-f", "-C", "-e", $image);
+  }
+
+  # If "addr2line" isn't installed on the system at all, just use
+  # nm to get what info we can (function names, but not line numbers).
+  if (system(ShellEscape($addr2line, "--help") . " >$dev_null 2>&1") != 0) {
+    MapSymbolsWithNM($image, $offset, $pclist, $symbols);
+    return;
+  }
+
+  # "addr2line -i" can produce a variable number of lines per input
+  # address, with no separator that allows us to tell when data for
+  # the next address starts.  So we find the address for a special
+  # symbol (_fini) and interleave this address between all real
+  # addresses passed to addr2line.  The name of this special symbol
+  # can then be used as a separator.
+  $sep_address = undef;  # May be filled in by MapSymbolsWithNM()
+  my $nm_symbols = {};
+  MapSymbolsWithNM($image, $offset, $pclist, $nm_symbols);
+  if (defined($sep_address)) {
+    # Only add " -i" to addr2line if the binary supports it.
+    # addr2line --help returns 0, but not if it sees an unknown flag first.
+    if (system("$cmd -i --help >$dev_null 2>&1") == 0) {
+      $cmd .= " -i";
+    } else {
+      $sep_address = undef;   # no need for sep_address if we don't support -i
+    }
+  }
+
+  # Make file with all PC values with intervening 'sep_address' so
+  # that we can reliably detect the end of inlined function list
+  open(ADDRESSES, ">$main::tmpfile_sym") || error("$main::tmpfile_sym: $!\n");
+  if ($debug) { print("---- $image ---\n"); }
+  for (my $i = 0; $i <= $#{$pclist}; $i++) {
+    # addr2line always reads hex addresses, and does not need '0x' prefix.
+    if ($debug) { printf STDERR ("%s\n", $pclist->[$i]); }
+    printf ADDRESSES ("%s\n", AddressSub($pclist->[$i], $offset));
+    if (defined($sep_address)) {
+      printf ADDRESSES ("%s\n", $sep_address);
+    }
+  }
+  close(ADDRESSES);
+  if ($debug) {
+    print("----\n");
+    system("cat", $main::tmpfile_sym);
+    print("---- $cmd ---\n");
+    system("$cmd < " . ShellEscape($main::tmpfile_sym));
+    print("----\n");
+  }
+
+  open(SYMBOLS, "$cmd <" . ShellEscape($main::tmpfile_sym) . " |")
+      || error("$cmd: $!\n");
+  my $count = 0;   # Index in pclist
+  while () {
+    # Read fullfunction and filelineinfo from next pair of lines
+    s/\r?\n$//g;
+    my $fullfunction = $_;
+    $_ = ;
+    s/\r?\n$//g;
+    my $filelinenum = $_;
+
+    if (defined($sep_address) && $fullfunction eq $sep_symbol) {
+      # Terminating marker for data for this address
+      $count++;
+      next;
+    }
+
+    $filelinenum =~ s|\\|/|g; # turn windows-style paths into unix-style paths
+
+    # Remove discriminator markers as this comes after the line number and
+    # confuses the rest of this script.
+    $filelinenum =~ s/ \(discriminator \d+\)$//;
+    # Convert unknown line numbers into line 0.
+    $filelinenum =~ s/:\?$/:0/;
+
+    my $pcstr = $pclist->[$count];
+    my $function = ShortFunctionName($fullfunction);
+    my $nms = $nm_symbols->{$pcstr};
+    if (defined($nms)) {
+      if ($fullfunction eq '??') {
+        # nm found a symbol for us.
+        $function = $nms->[0];
+        $fullfunction = $nms->[2];
+      } else {
+	# MapSymbolsWithNM tags each routine with its starting address,
+	# useful in case the image has multiple occurrences of this
+	# routine.  (It uses a syntax that resembles template paramters,
+	# that are automatically stripped out by ShortFunctionName().)
+	# addr2line does not provide the same information.  So we check
+	# if nm disambiguated our symbol, and if so take the annotated
+	# (nm) version of the routine-name.  TODO(csilvers): this won't
+	# catch overloaded, inlined symbols, which nm doesn't see.
+	# Better would be to do a check similar to nm's, in this fn.
+	if ($nms->[2] =~ m/^\Q$function\E/) {  # sanity check it's the right fn
+	  $function = $nms->[0];
+	  $fullfunction = $nms->[2];
+	}
+      }
+    }
+    
+    # Prepend to accumulated symbols for pcstr
+    # (so that caller comes before callee)
+    my $sym = $symbols->{$pcstr};
+    if (!defined($sym)) {
+      $sym = [];
+      $symbols->{$pcstr} = $sym;
+    }
+    unshift(@{$sym}, $function, $filelinenum, $fullfunction);
+    if ($debug) { printf STDERR ("%s => [%s]\n", $pcstr, join(" ", @{$sym})); }
+    if (!defined($sep_address)) {
+      # Inlining is off, so this entry ends immediately
+      $count++;
+    }
+  }
+  close(SYMBOLS);
+}
+
+# Use nm to map the list of referenced PCs to symbols.  Return true iff we
+# are able to read procedure information via nm.
+sub MapSymbolsWithNM {
+  my $image = shift;
+  my $offset = shift;
+  my $pclist = shift;
+  my $symbols = shift;
+
+  # Get nm output sorted by increasing address
+  my $symbol_table = GetProcedureBoundaries($image, ".");
+  if (!%{$symbol_table}) {
+    return 0;
+  }
+  # Start addresses are already the right length (8 or 16 hex digits).
+  my @names = sort { $symbol_table->{$a}->[0] cmp $symbol_table->{$b}->[0] }
+    keys(%{$symbol_table});
+
+  if ($#names < 0) {
+    # No symbols: just use addresses
+    foreach my $pc (@{$pclist}) {
+      my $pcstr = "0x" . $pc;
+      $symbols->{$pc} = [$pcstr, "?", $pcstr];
+    }
+    return 0;
+  }
+
+  # Sort addresses so we can do a join against nm output
+  my $index = 0;
+  my $fullname = $names[0];
+  my $name = ShortFunctionName($fullname);
+  foreach my $pc (sort { $a cmp $b } @{$pclist}) {
+    # Adjust for mapped offset
+    my $mpc = AddressSub($pc, $offset);
+    while (($index < $#names) && ($mpc ge $symbol_table->{$fullname}->[1])){
+      $index++;
+      $fullname = $names[$index];
+      $name = ShortFunctionName($fullname);
+    }
+    if ($mpc lt $symbol_table->{$fullname}->[1]) {
+      $symbols->{$pc} = [$name, "?", $fullname];
+    } else {
+      my $pcstr = "0x" . $pc;
+      $symbols->{$pc} = [$pcstr, "?", $pcstr];
+    }
+  }
+  return 1;
+}
+
+sub ShortFunctionName {
+  my $function = shift;
+  while ($function =~ s/\([^()]*\)(\s*const)?//g) { }   # Argument types
+  $function =~ s/<[0-9a-f]*>$//g;                # Remove Address
+  if (!$main::opt_no_strip_temp) {
+      while ($function =~ s/<[^<>]*>//g)  { }   # Remove template arguments
+  }
+  $function =~ s/^.*\s+(\w+::)/$1/;          # Remove leading type
+  return $function;
+}
+
+# Trim overly long symbols found in disassembler output
+sub CleanDisassembly {
+  my $d = shift;
+  while ($d =~ s/\([^()%]*\)(\s*const)?//g) { } # Argument types, not (%rax)
+  while ($d =~ s/(\w+)<[^<>]*>/$1/g)  { }       # Remove template arguments
+  return $d;
+}
+
+# Clean file name for display
+sub CleanFileName {
+  my ($f) = @_;
+  $f =~ s|^/proc/self/cwd/||;
+  $f =~ s|^\./||;
+  return $f;
+}
+
+# Make address relative to section and clean up for display
+sub UnparseAddress {
+  my ($offset, $address) = @_;
+  $address = AddressSub($address, $offset);
+  $address =~ s/^0x//;
+  $address =~ s/^0*//;
+  return $address;
+}
+
+##### Miscellaneous #####
+
+# Find the right versions of the above object tools to use.  The
+# argument is the program file being analyzed, and should be an ELF
+# 32-bit or ELF 64-bit executable file.  The location of the tools
+# is determined by considering the following options in this order:
+#   1) --tools option, if set
+#   2) PPROF_TOOLS environment variable, if set
+#   3) the environment
+sub ConfigureObjTools {
+  my $prog_file = shift;
+
+  # Check for the existence of $prog_file because /usr/bin/file does not
+  # predictably return error status in prod.
+  (-e $prog_file)  || error("$prog_file does not exist.\n");
+
+  my $file_type = undef;
+  if (-e "/usr/bin/file") {
+    # Follow symlinks (at least for systems where "file" supports that).
+    my $escaped_prog_file = ShellEscape($prog_file);
+    $file_type = `/usr/bin/file -L $escaped_prog_file 2>$dev_null ||
+                  /usr/bin/file $escaped_prog_file`;
+  } elsif ($^O == "MSWin32") {
+    $file_type = "MS Windows";
+  } else {
+    print STDERR "WARNING: Can't determine the file type of $prog_file";
+  }
+
+  if ($file_type =~ /64-bit/) {
+    # Change $address_length to 16 if the program file is ELF 64-bit.
+    # We can't detect this from many (most?) heap or lock contention
+    # profiles, since the actual addresses referenced are generally in low
+    # memory even for 64-bit programs.
+    $address_length = 16;
+  }
+
+  if ($file_type =~ /MS Windows/) {
+    # For windows, we provide a version of nm and addr2line as part of
+    # the opensource release, which is capable of parsing
+    # Windows-style PDB executables.  It should live in the path, or
+    # in the same directory as pprof.
+    $obj_tool_map{"nm_pdb"} = "nm-pdb";
+    $obj_tool_map{"addr2line_pdb"} = "addr2line-pdb";
+  }
+
+  if ($file_type =~ /Mach-O/) {
+    # OS X uses otool to examine Mach-O files, rather than objdump.
+    $obj_tool_map{"otool"} = "otool";
+    $obj_tool_map{"addr2line"} = "false";  # no addr2line
+    $obj_tool_map{"objdump"} = "false";  # no objdump
+  }
+
+  # Go fill in %obj_tool_map with the pathnames to use:
+  foreach my $tool (keys %obj_tool_map) {
+    $obj_tool_map{$tool} = ConfigureTool($obj_tool_map{$tool});
+  }
+}
+
+# Returns the path of a caller-specified object tool.  If --tools or
+# PPROF_TOOLS are specified, then returns the full path to the tool
+# with that prefix.  Otherwise, returns the path unmodified (which
+# means we will look for it on PATH).
+sub ConfigureTool {
+  my $tool = shift;
+  my $path;
+
+  # --tools (or $PPROF_TOOLS) is a comma separated list, where each
+  # item is either a) a pathname prefix, or b) a map of the form
+  # :.  First we look for an entry of type (b) for our
+  # tool.  If one is found, we use it.  Otherwise, we consider all the
+  # pathname prefixes in turn, until one yields an existing file.  If
+  # none does, we use a default path.
+  my $tools = $main::opt_tools || $ENV{"PPROF_TOOLS"} || "";
+  if ($tools =~ m/(,|^)\Q$tool\E:([^,]*)/) {
+    $path = $2;
+    # TODO(csilvers): sanity-check that $path exists?  Hard if it's relative.
+  } elsif ($tools ne '') {
+    foreach my $prefix (split(',', $tools)) {
+      next if ($prefix =~ /:/);    # ignore "tool:fullpath" entries in the list
+      if (-x $prefix . $tool) {
+        $path = $prefix . $tool;
+        last;
+      }
+    }
+    if (!$path) {
+      error("No '$tool' found with prefix specified by " .
+            "--tools (or \$PPROF_TOOLS) '$tools'\n");
+    }
+  } else {
+    # ... otherwise use the version that exists in the same directory as
+    # pprof.  If there's nothing there, use $PATH.
+    $0 =~ m,[^/]*$,;     # this is everything after the last slash
+    my $dirname = $`;    # this is everything up to and including the last slash
+    if (-x "$dirname$tool") {
+      $path = "$dirname$tool";
+    } else { 
+      $path = $tool;
+    }
+  }
+  if ($main::opt_debug) { print STDERR "Using '$path' for '$tool'.\n"; }
+  return $path;
+}
+
+sub ShellEscape {
+  my @escaped_words = ();
+  foreach my $word (@_) {
+    my $escaped_word = $word;
+    if ($word =~ m![^a-zA-Z0-9/.,_=-]!) {  # check for anything not in whitelist
+      $escaped_word =~ s/'/'\\''/;
+      $escaped_word = "'$escaped_word'";
+    }
+    push(@escaped_words, $escaped_word);
+  }
+  return join(" ", @escaped_words);
+}
+
+sub cleanup {
+  unlink($main::tmpfile_sym);
+  unlink(keys %main::tempnames);
+
+  # We leave any collected profiles in $HOME/pprof in case the user wants
+  # to look at them later.  We print a message informing them of this.
+  if ((scalar(@main::profile_files) > 0) &&
+      defined($main::collected_profile)) {
+    if (scalar(@main::profile_files) == 1) {
+      print STDERR "Dynamically gathered profile is in $main::collected_profile\n";
+    }
+    print STDERR "If you want to investigate this profile further, you can do:\n";
+    print STDERR "\n";
+    print STDERR "  $0 \\\n";
+    print STDERR "    $main::prog \\\n";
+    print STDERR "    $main::collected_profile\n";
+    print STDERR "\n";
+  }
+}
+
+sub sighandler {
+  cleanup();
+  exit(1);
+}
+
+sub error {
+  my $msg = shift;
+  print STDERR $msg;
+  cleanup();
+  exit(1);
+}
+
+
+# Run $nm_command and get all the resulting procedure boundaries whose
+# names match "$regexp" and returns them in a hashtable mapping from
+# procedure name to a two-element vector of [start address, end address]
+sub GetProcedureBoundariesViaNm {
+  my $escaped_nm_command = shift;    # shell-escaped
+  my $regexp = shift;
+  my $image = shift;
+
+  my $symbol_table = {};
+  open(NM, "$escaped_nm_command |") || error("$escaped_nm_command: $!\n");
+  my $last_start = "0";
+  my $routine = "";
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    if (m/^\s*([0-9a-f]+) (.) (..*)/) {
+      my $start_val = $1;
+      my $type = $2;
+      my $this_routine = $3;
+
+      # It's possible for two symbols to share the same address, if
+      # one is a zero-length variable (like __start_google_malloc) or
+      # one symbol is a weak alias to another (like __libc_malloc).
+      # In such cases, we want to ignore all values except for the
+      # actual symbol, which in nm-speak has type "T".  The logic
+      # below does this, though it's a bit tricky: what happens when
+      # we have a series of lines with the same address, is the first
+      # one gets queued up to be processed.  However, it won't
+      # *actually* be processed until later, when we read a line with
+      # a different address.  That means that as long as we're reading
+      # lines with the same address, we have a chance to replace that
+      # item in the queue, which we do whenever we see a 'T' entry --
+      # that is, a line with type 'T'.  If we never see a 'T' entry,
+      # we'll just go ahead and process the first entry (which never
+      # got touched in the queue), and ignore the others.
+      if ($start_val eq $last_start && $type =~ /t/i) {
+        # We are the 'T' symbol at this address, replace previous symbol.
+        $routine = $this_routine;
+        next;
+      } elsif ($start_val eq $last_start) {
+        # We're not the 'T' symbol at this address, so ignore us.
+        next;
+      }
+
+      if ($this_routine eq $sep_symbol) {
+        $sep_address = HexExtend($start_val);
+      }
+
+      # Tag this routine with the starting address in case the image
+      # has multiple occurrences of this routine.  We use a syntax
+      # that resembles template paramters that are automatically
+      # stripped out by ShortFunctionName()
+      $this_routine .= "<$start_val>";
+
+      if (defined($routine) && $routine =~ m/$regexp/) {
+        $symbol_table->{$routine} = [HexExtend($last_start),
+                                     HexExtend($start_val)];
+      }
+      $last_start = $start_val;
+      $routine = $this_routine;
+    } elsif (m/^Loaded image name: (.+)/) {
+      # The win32 nm workalike emits information about the binary it is using.
+      if ($main::opt_debug) { print STDERR "Using Image $1\n"; }
+    } elsif (m/^PDB file name: (.+)/) {
+      # The win32 nm workalike emits information about the pdb it is using.
+      if ($main::opt_debug) { print STDERR "Using PDB $1\n"; }
+    }
+  }
+  close(NM);
+  # Handle the last line in the nm output.  Unfortunately, we don't know
+  # how big this last symbol is, because we don't know how big the file
+  # is.  For now, we just give it a size of 0.
+  # TODO(csilvers): do better here.
+  if (defined($routine) && $routine =~ m/$regexp/) {
+    $symbol_table->{$routine} = [HexExtend($last_start),
+                                 HexExtend($last_start)];
+  }
+
+  # Verify if addr2line can find the $sep_symbol.  If not, we use objdump
+  # to find the address for the $sep_symbol on code section which addr2line
+  # can find.
+  if (defined($sep_address)){
+    my $start_val = $sep_address;
+    my $addr2line = $obj_tool_map{"addr2line"};
+    my $cmd = ShellEscape($addr2line, "-f", "-C", "-e", $image, "-i");
+    open(FINI, "echo $start_val | $cmd  |")
+         || error("echo $start_val | $cmd: $!\n");
+    $_ = ;
+    s/\r?\n$//g;
+    my $fini = $_;
+    close(FINI);
+    if ($fini ne $sep_symbol){
+      my $objdump =  $obj_tool_map{"objdump"};
+      $cmd = ShellEscape($objdump, "-d", $image);
+      my $grep = ShellEscape("grep", $sep_symbol);
+      my $tail = ShellEscape("tail", "-n", "1");
+      open(FINI, "$cmd | $grep | $tail |")
+           || error("$cmd | $grep | $tail: $!\n");
+      s/\r//g; # turn windows-looking lines into unix-looking lines
+      my $data = ;
+      if (defined($data)){
+        ($start_val, $fini) = split(/ $dev_null 2>&1";
+  if (system(ShellEscape($nm, "--demangle", $image) . $to_devnull) == 0) {
+    # In this mode, we do "nm --demangle "
+    $demangle_flag = "--demangle";
+    $cppfilt_flag = "";
+  } elsif (system(ShellEscape($cppfilt, $image) . $to_devnull) == 0) {
+    # In this mode, we do "nm  | c++filt"
+    $cppfilt_flag = " | " . ShellEscape($cppfilt);
+  };
+  my $flatten_flag = "";
+  if (system(ShellEscape($nm, "-f", $image) . $to_devnull) == 0) {
+    $flatten_flag = "-f";
+  }
+
+  # Finally, in the case $imagie isn't a debug library, we try again with
+  # -D to at least get *exported* symbols.  If we can't use --demangle,
+  # we use c++filt instead, if it exists on this system.
+  my @nm_commands = (ShellEscape($nm, "-n", $flatten_flag, $demangle_flag,
+                                 $image) . " 2>$dev_null $cppfilt_flag",
+                     ShellEscape($nm, "-D", "-n", $flatten_flag, $demangle_flag,
+                                 $image) . " 2>$dev_null $cppfilt_flag",
+                     # 6nm is for Go binaries
+                     ShellEscape("6nm", "$image") . " 2>$dev_null | sort",
+                     );
+
+  # If the executable is an MS Windows PDB-format executable, we'll
+  # have set up obj_tool_map("nm_pdb").  In this case, we actually
+  # want to use both unix nm and windows-specific nm_pdb, since
+  # PDB-format executables can apparently include dwarf .o files.
+  if (exists $obj_tool_map{"nm_pdb"}) {
+    push(@nm_commands,
+         ShellEscape($obj_tool_map{"nm_pdb"}, "--demangle", $image)
+         . " 2>$dev_null");
+  }
+
+  foreach my $nm_command (@nm_commands) {
+    my $symbol_table = GetProcedureBoundariesViaNm($nm_command, $regexp, $image);
+    return $symbol_table if (%{$symbol_table});
+  }
+  my $symbol_table = {};
+  return $symbol_table;
+}
+
+
+# The test vectors for AddressAdd/Sub/Inc are 8-16-nibble hex strings.
+# To make them more readable, we add underscores at interesting places.
+# This routine removes the underscores, producing the canonical representation
+# used by pprof to represent addresses, particularly in the tested routines.
+sub CanonicalHex {
+  my $arg = shift;
+  return join '', (split '_',$arg);
+}
+
+
+# Unit test for AddressAdd:
+sub AddressAddUnitTest {
+  my $test_data_8 = shift;
+  my $test_data_16 = shift;
+  my $error_count = 0;
+  my $fail_count = 0;
+  my $pass_count = 0;
+  # print STDERR "AddressAddUnitTest: ", 1+$#{$test_data_8}, " tests\n";
+
+  # First a few 8-nibble addresses.  Note that this implementation uses
+  # plain old arithmetic, so a quick sanity check along with verifying what
+  # happens to overflow (we want it to wrap):
+  $address_length = 8;
+  foreach my $row (@{$test_data_8}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressAdd ($row->[0], $row->[1]);
+    if ($sum ne $row->[2]) {
+      printf STDERR "ERROR: %s != %s + %s = %s\n", $sum,
+             $row->[0], $row->[1], $row->[2];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressAdd 32-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count = $fail_count;
+  $fail_count = 0;
+  $pass_count = 0;
+
+  # Now 16-nibble addresses.
+  $address_length = 16;
+  foreach my $row (@{$test_data_16}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressAdd (CanonicalHex($row->[0]), CanonicalHex($row->[1]));
+    my $expected = join '', (split '_',$row->[2]);
+    if ($sum ne CanonicalHex($row->[2])) {
+      printf STDERR "ERROR: %s != %s + %s = %s\n", $sum,
+             $row->[0], $row->[1], $row->[2];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressAdd 64-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count += $fail_count;
+
+  return $error_count;
+}
+
+
+# Unit test for AddressSub:
+sub AddressSubUnitTest {
+  my $test_data_8 = shift;
+  my $test_data_16 = shift;
+  my $error_count = 0;
+  my $fail_count = 0;
+  my $pass_count = 0;
+  # print STDERR "AddressSubUnitTest: ", 1+$#{$test_data_8}, " tests\n";
+
+  # First a few 8-nibble addresses.  Note that this implementation uses
+  # plain old arithmetic, so a quick sanity check along with verifying what
+  # happens to overflow (we want it to wrap):
+  $address_length = 8;
+  foreach my $row (@{$test_data_8}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressSub ($row->[0], $row->[1]);
+    if ($sum ne $row->[3]) {
+      printf STDERR "ERROR: %s != %s - %s = %s\n", $sum,
+             $row->[0], $row->[1], $row->[3];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressSub 32-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count = $fail_count;
+  $fail_count = 0;
+  $pass_count = 0;
+
+  # Now 16-nibble addresses.
+  $address_length = 16;
+  foreach my $row (@{$test_data_16}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressSub (CanonicalHex($row->[0]), CanonicalHex($row->[1]));
+    if ($sum ne CanonicalHex($row->[3])) {
+      printf STDERR "ERROR: %s != %s - %s = %s\n", $sum,
+             $row->[0], $row->[1], $row->[3];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressSub 64-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count += $fail_count;
+
+  return $error_count;
+}
+
+
+# Unit test for AddressInc:
+sub AddressIncUnitTest {
+  my $test_data_8 = shift;
+  my $test_data_16 = shift;
+  my $error_count = 0;
+  my $fail_count = 0;
+  my $pass_count = 0;
+  # print STDERR "AddressIncUnitTest: ", 1+$#{$test_data_8}, " tests\n";
+
+  # First a few 8-nibble addresses.  Note that this implementation uses
+  # plain old arithmetic, so a quick sanity check along with verifying what
+  # happens to overflow (we want it to wrap):
+  $address_length = 8;
+  foreach my $row (@{$test_data_8}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressInc ($row->[0]);
+    if ($sum ne $row->[4]) {
+      printf STDERR "ERROR: %s != %s + 1 = %s\n", $sum,
+             $row->[0], $row->[4];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressInc 32-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count = $fail_count;
+  $fail_count = 0;
+  $pass_count = 0;
+
+  # Now 16-nibble addresses.
+  $address_length = 16;
+  foreach my $row (@{$test_data_16}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressInc (CanonicalHex($row->[0]));
+    if ($sum ne CanonicalHex($row->[4])) {
+      printf STDERR "ERROR: %s != %s + 1 = %s\n", $sum,
+             $row->[0], $row->[4];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressInc 64-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count += $fail_count;
+
+  return $error_count;
+}
+
+
+# Driver for unit tests.
+# Currently just the address add/subtract/increment routines for 64-bit.
+sub RunUnitTests {
+  my $error_count = 0;
+
+  # This is a list of tuples [a, b, a+b, a-b, a+1]
+  my $unit_test_data_8 = [
+    [qw(aaaaaaaa 50505050 fafafafa 5a5a5a5a aaaaaaab)],
+    [qw(50505050 aaaaaaaa fafafafa a5a5a5a6 50505051)],
+    [qw(ffffffff aaaaaaaa aaaaaaa9 55555555 00000000)],
+    [qw(00000001 ffffffff 00000000 00000002 00000002)],
+    [qw(00000001 fffffff0 fffffff1 00000011 00000002)],
+  ];
+  my $unit_test_data_16 = [
+    # The implementation handles data in 7-nibble chunks, so those are the
+    # interesting boundaries.
+    [qw(aaaaaaaa 50505050
+        00_000000f_afafafa 00_0000005_a5a5a5a 00_000000a_aaaaaab)],
+    [qw(50505050 aaaaaaaa
+        00_000000f_afafafa ff_ffffffa_5a5a5a6 00_0000005_0505051)],
+    [qw(ffffffff aaaaaaaa
+        00_000001a_aaaaaa9 00_0000005_5555555 00_0000010_0000000)],
+    [qw(00000001 ffffffff
+        00_0000010_0000000 ff_ffffff0_0000002 00_0000000_0000002)],
+    [qw(00000001 fffffff0
+        00_000000f_ffffff1 ff_ffffff0_0000011 00_0000000_0000002)],
+
+    [qw(00_a00000a_aaaaaaa 50505050
+        00_a00000f_afafafa 00_a000005_a5a5a5a 00_a00000a_aaaaaab)],
+    [qw(0f_fff0005_0505050 aaaaaaaa
+        0f_fff000f_afafafa 0f_ffefffa_5a5a5a6 0f_fff0005_0505051)],
+    [qw(00_000000f_fffffff 01_800000a_aaaaaaa
+        01_800001a_aaaaaa9 fe_8000005_5555555 00_0000010_0000000)],
+    [qw(00_0000000_0000001 ff_fffffff_fffffff
+        00_0000000_0000000 00_0000000_0000002 00_0000000_0000002)],
+    [qw(00_0000000_0000001 ff_fffffff_ffffff0
+        ff_fffffff_ffffff1 00_0000000_0000011 00_0000000_0000002)],
+  ];
+
+  $error_count += AddressAddUnitTest($unit_test_data_8, $unit_test_data_16);
+  $error_count += AddressSubUnitTest($unit_test_data_8, $unit_test_data_16);
+  $error_count += AddressIncUnitTest($unit_test_data_8, $unit_test_data_16);
+  if ($error_count > 0) {
+    print STDERR $error_count, " errors: FAILED\n";
+  } else {
+    print STDERR "PASS\n";
+  }
+  exit ($error_count);
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/addressmap-inl.h b/trunk/3rdparty/gperftools-2-fit/src/addressmap-inl.h
new file mode 100644
index 000000000..524aff687
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/addressmap-inl.h
@@ -0,0 +1,422 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// A fast map from addresses to values.  Assumes that addresses are
+// clustered.  The main use is intended to be for heap-profiling.
+// May be too memory-hungry for other uses.
+//
+// We use a user-defined allocator/de-allocator so that we can use
+// this data structure during heap-profiling.
+//
+// IMPLEMENTATION DETAIL:
+//
+// Some default definitions/parameters:
+//  * Block      -- aligned 128-byte region of the address space
+//  * Cluster    -- aligned 1-MB region of the address space
+//  * Block-ID   -- block-number within a cluster
+//  * Cluster-ID -- Starting address of cluster divided by cluster size
+//
+// We use a three-level map to represent the state:
+//  1. A hash-table maps from a cluster-ID to the data for that cluster.
+//  2. For each non-empty cluster we keep an array indexed by
+//     block-ID tht points to the first entry in the linked-list
+//     for the block.
+//  3. At the bottom, we keep a singly-linked list of all
+//     entries in a block (for non-empty blocks).
+//
+//    hash table
+//  +-------------+
+//  | id->cluster |---> ...
+//  |     ...     |
+//  | id->cluster |--->  Cluster
+//  +-------------+     +-------+    Data for one block
+//                      |  nil  |   +------------------------------------+
+//                      |   ----+---|->[addr/value]-->[addr/value]-->... |
+//                      |  nil  |   +------------------------------------+
+//                      |   ----+--> ...
+//                      |  nil  |
+//                      |  ...  |
+//                      +-------+
+//
+// Note that we require zero-bytes of overhead for completely empty
+// clusters.  The minimum space requirement for a cluster is the size
+// of the hash-table entry plus a pointer value for each block in
+// the cluster.  Empty blocks impose no extra space requirement.
+//
+// The cost of a lookup is:
+//      a. A hash-table lookup to find the cluster
+//      b. An array access in the cluster structure
+//      c. A traversal over the linked-list for a block
+
+#ifndef BASE_ADDRESSMAP_INL_H_
+#define BASE_ADDRESSMAP_INL_H_
+
+#include "config.h"
+#include 
+#include 
+#if defined HAVE_STDINT_H
+#include              // to get uint16_t (ISO naming madness)
+#elif defined HAVE_INTTYPES_H
+#include            // another place uint16_t might be defined
+#else
+#include           // our last best hope
+#endif
+
+// This class is thread-unsafe -- that is, instances of this class can
+// not be accessed concurrently by multiple threads -- because the
+// callback function for Iterate() may mutate contained values. If the
+// callback functions you pass do not mutate their Value* argument,
+// AddressMap can be treated as thread-compatible -- that is, it's
+// safe for multiple threads to call "const" methods on this class,
+// but not safe for one thread to call const methods on this class
+// while another thread is calling non-const methods on the class.
+template 
+class AddressMap {
+ public:
+  typedef void* (*Allocator)(size_t size);
+  typedef void  (*DeAllocator)(void* ptr);
+  typedef const void* Key;
+
+  // Create an AddressMap that uses the specified allocator/deallocator.
+  // The allocator/deallocator should behave like malloc/free.
+  // For instance, the allocator does not need to return initialized memory.
+  AddressMap(Allocator alloc, DeAllocator dealloc);
+  ~AddressMap();
+
+  // If the map contains an entry for "key", return it. Else return NULL.
+  inline const Value* Find(Key key) const;
+  inline Value* FindMutable(Key key);
+
+  // Insert  into the map.  Any old value associated
+  // with key is forgotten.
+  void Insert(Key key, Value value);
+
+  // Remove any entry for key in the map.  If an entry was found
+  // and removed, stores the associated value in "*removed_value"
+  // and returns true.  Else returns false.
+  bool FindAndRemove(Key key, Value* removed_value);
+
+  // Similar to Find but we assume that keys are addresses of non-overlapping
+  // memory ranges whose sizes are given by size_func.
+  // If the map contains a range into which "key" points
+  // (at its start or inside of it, but not at the end),
+  // return the address of the associated value
+  // and store its key in "*res_key".
+  // Else return NULL.
+  // max_size specifies largest range size possibly in existence now.
+  typedef size_t (*ValueSizeFunc)(const Value& v);
+  const Value* FindInside(ValueSizeFunc size_func, size_t max_size,
+                          Key key, Key* res_key);
+
+  // Iterate over the address map calling 'callback'
+  // for all stored key-value pairs and passing 'arg' to it.
+  // We don't use full Closure/Callback machinery not to add
+  // unnecessary dependencies to this class with low-level uses.
+  template
+  inline void Iterate(void (*callback)(Key, Value*, Type), Type arg) const;
+
+ private:
+  typedef uintptr_t Number;
+
+  // The implementation assumes that addresses inserted into the map
+  // will be clustered.  We take advantage of this fact by splitting
+  // up the address-space into blocks and using a linked-list entry
+  // for each block.
+
+  // Size of each block.  There is one linked-list for each block, so
+  // do not make the block-size too big.  Oterwise, a lot of time
+  // will be spent traversing linked lists.
+  static const int kBlockBits = 7;
+  static const int kBlockSize = 1 << kBlockBits;
+
+  // Entry kept in per-block linked-list
+  struct Entry {
+    Entry* next;
+    Key    key;
+    Value  value;
+  };
+
+  // We further group a sequence of consecutive blocks into a cluster.
+  // The data for a cluster is represented as a dense array of
+  // linked-lists, one list per contained block.
+  static const int kClusterBits = 13;
+  static const Number kClusterSize = 1 << (kBlockBits + kClusterBits);
+  static const int kClusterBlocks = 1 << kClusterBits;
+
+  // We use a simple chaining hash-table to represent the clusters.
+  struct Cluster {
+    Cluster* next;                      // Next cluster in hash table chain
+    Number   id;                        // Cluster ID
+    Entry*   blocks[kClusterBlocks];    // Per-block linked-lists
+  };
+
+  // Number of hash-table entries.  With the block-size/cluster-size
+  // defined above, each cluster covers 1 MB, so an 4K entry
+  // hash-table will give an average hash-chain length of 1 for 4GB of
+  // in-use memory.
+  static const int kHashBits = 12;
+  static const int kHashSize = 1 << 12;
+
+  // Number of entry objects allocated at a time
+  static const int ALLOC_COUNT = 64;
+
+  Cluster**     hashtable_;              // The hash-table
+  Entry*        free_;                   // Free list of unused Entry objects
+
+  // Multiplicative hash function:
+  // The value "kHashMultiplier" is the bottom 32 bits of
+  //    int((sqrt(5)-1)/2 * 2^32)
+  // This is a good multiplier as suggested in CLR, Knuth.  The hash
+  // value is taken to be the top "k" bits of the bottom 32 bits
+  // of the muliplied value.
+  static const uint32_t kHashMultiplier = 2654435769u;
+  static int HashInt(Number x) {
+    // Multiply by a constant and take the top bits of the result.
+    const uint32_t m = static_cast(x) * kHashMultiplier;
+    return static_cast(m >> (32 - kHashBits));
+  }
+
+  // Find cluster object for specified address.  If not found
+  // and "create" is true, create the object.  If not found
+  // and "create" is false, return NULL.
+  //
+  // This method is bitwise-const if create is false.
+  Cluster* FindCluster(Number address, bool create) {
+    // Look in hashtable
+    const Number cluster_id = address >> (kBlockBits + kClusterBits);
+    const int h = HashInt(cluster_id);
+    for (Cluster* c = hashtable_[h]; c != NULL; c = c->next) {
+      if (c->id == cluster_id) {
+        return c;
+      }
+    }
+
+    // Create cluster if necessary
+    if (create) {
+      Cluster* c = New(1);
+      c->id = cluster_id;
+      c->next = hashtable_[h];
+      hashtable_[h] = c;
+      return c;
+    }
+    return NULL;
+  }
+
+  // Return the block ID for an address within its cluster
+  static int BlockID(Number address) {
+    return (address >> kBlockBits) & (kClusterBlocks - 1);
+  }
+
+  //--------------------------------------------------------------
+  // Memory management -- we keep all objects we allocate linked
+  // together in a singly linked list so we can get rid of them
+  // when we are all done.  Furthermore, we allow the client to
+  // pass in custom memory allocator/deallocator routines.
+  //--------------------------------------------------------------
+  struct Object {
+    Object* next;
+    // The real data starts here
+  };
+
+  Allocator     alloc_;                 // The allocator
+  DeAllocator   dealloc_;               // The deallocator
+  Object*       allocated_;             // List of allocated objects
+
+  // Allocates a zeroed array of T with length "num".  Also inserts
+  // the allocated block into a linked list so it can be deallocated
+  // when we are all done.
+  template  T* New(int num) {
+    void* ptr = (*alloc_)(sizeof(Object) + num*sizeof(T));
+    memset(ptr, 0, sizeof(Object) + num*sizeof(T));
+    Object* obj = reinterpret_cast(ptr);
+    obj->next = allocated_;
+    allocated_ = obj;
+    return reinterpret_cast(reinterpret_cast(ptr) + 1);
+  }
+};
+
+// More implementation details follow:
+
+template 
+AddressMap::AddressMap(Allocator alloc, DeAllocator dealloc)
+  : free_(NULL),
+    alloc_(alloc),
+    dealloc_(dealloc),
+    allocated_(NULL) {
+  hashtable_ = New(kHashSize);
+}
+
+template 
+AddressMap::~AddressMap() {
+  // De-allocate all of the objects we allocated
+  for (Object* obj = allocated_; obj != NULL; /**/) {
+    Object* next = obj->next;
+    (*dealloc_)(obj);
+    obj = next;
+  }
+}
+
+template 
+inline const Value* AddressMap::Find(Key key) const {
+  return const_cast(this)->FindMutable(key);
+}
+
+template 
+inline Value* AddressMap::FindMutable(Key key) {
+  const Number num = reinterpret_cast(key);
+  const Cluster* const c = FindCluster(num, false/*do not create*/);
+  if (c != NULL) {
+    for (Entry* e = c->blocks[BlockID(num)]; e != NULL; e = e->next) {
+      if (e->key == key) {
+        return &e->value;
+      }
+    }
+  }
+  return NULL;
+}
+
+template 
+void AddressMap::Insert(Key key, Value value) {
+  const Number num = reinterpret_cast(key);
+  Cluster* const c = FindCluster(num, true/*create*/);
+
+  // Look in linked-list for this block
+  const int block = BlockID(num);
+  for (Entry* e = c->blocks[block]; e != NULL; e = e->next) {
+    if (e->key == key) {
+      e->value = value;
+      return;
+    }
+  }
+
+  // Create entry
+  if (free_ == NULL) {
+    // Allocate a new batch of entries and add to free-list
+    Entry* array = New(ALLOC_COUNT);
+    for (int i = 0; i < ALLOC_COUNT-1; i++) {
+      array[i].next = &array[i+1];
+    }
+    array[ALLOC_COUNT-1].next = free_;
+    free_ = &array[0];
+  }
+  Entry* e = free_;
+  free_ = e->next;
+  e->key = key;
+  e->value = value;
+  e->next = c->blocks[block];
+  c->blocks[block] = e;
+}
+
+template 
+bool AddressMap::FindAndRemove(Key key, Value* removed_value) {
+  const Number num = reinterpret_cast(key);
+  Cluster* const c = FindCluster(num, false/*do not create*/);
+  if (c != NULL) {
+    for (Entry** p = &c->blocks[BlockID(num)]; *p != NULL; p = &(*p)->next) {
+      Entry* e = *p;
+      if (e->key == key) {
+        *removed_value = e->value;
+        *p = e->next;         // Remove e from linked-list
+        e->next = free_;      // Add e to free-list
+        free_ = e;
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+template 
+const Value* AddressMap::FindInside(ValueSizeFunc size_func,
+                                           size_t max_size,
+                                           Key key,
+                                           Key* res_key) {
+  const Number key_num = reinterpret_cast(key);
+  Number num = key_num;  // we'll move this to move back through the clusters
+  while (1) {
+    const Cluster* c = FindCluster(num, false/*do not create*/);
+    if (c != NULL) {
+      while (1) {
+        const int block = BlockID(num);
+        bool had_smaller_key = false;
+        for (const Entry* e = c->blocks[block]; e != NULL; e = e->next) {
+          const Number e_num = reinterpret_cast(e->key);
+          if (e_num <= key_num) {
+            if (e_num == key_num  ||  // to handle 0-sized ranges
+                key_num < e_num + (*size_func)(e->value)) {
+              *res_key = e->key;
+              return &e->value;
+            }
+            had_smaller_key = true;
+          }
+        }
+        if (had_smaller_key) return NULL;  // got a range before 'key'
+                                           // and it did not contain 'key'
+        if (block == 0) break;
+        // try address-wise previous block
+        num |= kBlockSize - 1;  // start at the last addr of prev block
+        num -= kBlockSize;
+        if (key_num - num > max_size) return NULL;
+      }
+    }
+    if (num < kClusterSize) return NULL;  // first cluster
+    // go to address-wise previous cluster to try
+    num |= kClusterSize - 1;  // start at the last block of previous cluster
+    num -= kClusterSize;
+    if (key_num - num > max_size) return NULL;
+      // Having max_size to limit the search is crucial: else
+      // we have to traverse a lot of empty clusters (or blocks).
+      // We can avoid needing max_size if we put clusters into
+      // a search tree, but performance suffers considerably
+      // if we use this approach by using stl::set.
+  }
+}
+
+template 
+template 
+inline void AddressMap::Iterate(void (*callback)(Key, Value*, Type),
+                                       Type arg) const {
+  // We could optimize this by traversing only non-empty clusters and/or blocks
+  // but it does not speed up heap-checker noticeably.
+  for (int h = 0; h < kHashSize; ++h) {
+    for (const Cluster* c = hashtable_[h]; c != NULL; c = c->next) {
+      for (int b = 0; b < kClusterBlocks; ++b) {
+        for (Entry* e = c->blocks[b]; e != NULL; e = e->next) {
+          callback(e->key, &e->value, arg);
+        }
+      }
+    }
+  }
+}
+
+#endif  // BASE_ADDRESSMAP_INL_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/arm_instruction_set_select.h b/trunk/3rdparty/gperftools-2-fit/src/base/arm_instruction_set_select.h
new file mode 100644
index 000000000..77ff670f3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/arm_instruction_set_select.h
@@ -0,0 +1,85 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Alexander Levitskiy
+//
+// Generalizes the plethora of ARM flavors available to an easier to manage set
+// Defs reference is at https://wiki.edubuntu.org/ARM/Thumb2PortingHowto
+
+#ifndef ARM_INSTRUCTION_SET_SELECT_H_
+#define ARM_INSTRUCTION_SET_SELECT_H_
+
+#if defined(__ARM_ARCH_8A__)
+# define ARMV8 1
+#endif
+
+#if defined(ARMV8) || \
+    defined(__ARM_ARCH_7__) || \
+    defined(__ARM_ARCH_7R__) || \
+    defined(__ARM_ARCH_7A__)
+# define ARMV7 1
+#endif
+
+#if defined(ARMV7) || \
+    defined(__ARM_ARCH_6__) || \
+    defined(__ARM_ARCH_6J__) || \
+    defined(__ARM_ARCH_6K__) || \
+    defined(__ARM_ARCH_6Z__) || \
+    defined(__ARM_ARCH_6T2__) || \
+    defined(__ARM_ARCH_6ZK__)
+# define ARMV6 1
+#endif
+
+#if defined(ARMV6) || \
+    defined(__ARM_ARCH_5T__) || \
+    defined(__ARM_ARCH_5E__) || \
+    defined(__ARM_ARCH_5TE__) || \
+    defined(__ARM_ARCH_5TEJ__)
+# define ARMV5 1
+#endif
+
+#if defined(ARMV5) || \
+    defined(__ARM_ARCH_4__) || \
+    defined(__ARM_ARCH_4T__)
+# define ARMV4 1
+#endif
+
+#if defined(ARMV4) || \
+    defined(__ARM_ARCH_3__) || \
+    defined(__ARM_ARCH_3M__)
+# define ARMV3 1
+#endif
+
+#if defined(ARMV3) || \
+    defined(__ARM_ARCH_2__)
+# define ARMV2 1
+#endif
+
+#endif  // ARM_INSTRUCTION_SET_SELECT_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-arm-generic.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-arm-generic.h
new file mode 100644
index 000000000..cfa614370
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-arm-generic.h
@@ -0,0 +1,209 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2003, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// ---
+//
+// Author: Lei Zhang, Sasha Levitskiy
+//
+// This file is an internal atomic implementation, use base/atomicops.h instead.
+//
+// LinuxKernelCmpxchg is from Google Gears.
+
+#ifndef BASE_ATOMICOPS_INTERNALS_ARM_GENERIC_H_
+#define BASE_ATOMICOPS_INTERNALS_ARM_GENERIC_H_
+
+#include 
+#include 
+#include "base/basictypes.h"
+
+typedef int32_t Atomic32;
+
+namespace base {
+namespace subtle {
+
+typedef int64_t Atomic64;
+
+// 0xffff0fc0 is the hard coded address of a function provided by
+// the kernel which implements an atomic compare-exchange. On older
+// ARM architecture revisions (pre-v6) this may be implemented using
+// a syscall. This address is stable, and in active use (hard coded)
+// by at least glibc-2.7 and the Android C library.
+// pLinuxKernelCmpxchg has both acquire and release barrier sematincs.
+typedef Atomic32 (*LinuxKernelCmpxchgFunc)(Atomic32 old_value,
+                                           Atomic32 new_value,
+                                           volatile Atomic32* ptr);
+LinuxKernelCmpxchgFunc pLinuxKernelCmpxchg ATTRIBUTE_WEAK =
+    (LinuxKernelCmpxchgFunc) 0xffff0fc0;
+
+typedef void (*LinuxKernelMemoryBarrierFunc)(void);
+LinuxKernelMemoryBarrierFunc pLinuxKernelMemoryBarrier ATTRIBUTE_WEAK =
+    (LinuxKernelMemoryBarrierFunc) 0xffff0fa0;
+
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  Atomic32 prev_value = *ptr;
+  do {
+    if (!pLinuxKernelCmpxchg(old_value, new_value,
+                             const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
+                                         Atomic32 new_value) {
+  Atomic32 old_value;
+  do {
+    old_value = *ptr;
+  } while (pLinuxKernelCmpxchg(old_value, new_value,
+                               const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  // pLinuxKernelCmpxchg already has acquire and release barrier semantics.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  // pLinuxKernelCmpxchg already has acquire and release barrier semantics.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+  *ptr = value;
+}
+
+inline void MemoryBarrier() {
+  pLinuxKernelMemoryBarrier();
+}
+
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
+  MemoryBarrier();
+  *ptr = value;
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+  return *ptr;
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
+  Atomic32 value = *ptr;
+  MemoryBarrier();
+  return value;
+}
+
+
+// 64-bit versions are not implemented yet.
+
+inline void NotImplementedFatalError(const char *function_name) {
+  fprintf(stderr, "64-bit %s() not implemented on this platform\n",
+          function_name);
+  abort();
+}
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  NotImplementedFatalError("NoBarrier_CompareAndSwap");
+  return 0;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+  NotImplementedFatalError("NoBarrier_AtomicExchange");
+  return 0;
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  // pLinuxKernelCmpxchg already has acquire and release barrier semantics.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  // pLinuxKernelCmpxchg already has acquire and release barrier semantics.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  NotImplementedFatalError("NoBarrier_Store");
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  NotImplementedFatalError("Release_Store");
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  NotImplementedFatalError("NoBarrier_Load");
+  return 0;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  NotImplementedFatalError("Atomic64 Acquire_Load");
+  return 0;
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  NotImplementedFatalError("Atomic64 Acquire_CompareAndSwap");
+  return 0;
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  NotImplementedFatalError("Atomic64 Release_CompareAndSwap");
+  return 0;
+}
+
+}  // namespace base::subtle
+}  // namespace base
+
+#endif  // BASE_ATOMICOPS_INTERNALS_ARM_GENERIC_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-arm-v6plus.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-arm-v6plus.h
new file mode 100644
index 000000000..af2920a5b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-arm-v6plus.h
@@ -0,0 +1,310 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// ---
+//
+// Author: Sasha Levitskiy
+// based on atomicops-internals by Sanjay Ghemawat
+//
+// This file is an internal atomic implementation, use base/atomicops.h instead.
+//
+// This code implements ARM atomics for architectures V6 and  newer.
+
+#ifndef BASE_ATOMICOPS_INTERNALS_ARM_V6PLUS_H_
+#define BASE_ATOMICOPS_INTERNALS_ARM_V6PLUS_H_
+
+#include 
+#include 
+#include "base/basictypes.h"  // For COMPILE_ASSERT
+
+// The LDREXD and STREXD instructions in ARM all v7 variants or above.  In v6,
+// only some variants support it.  For simplicity, we only use exclusive
+// 64-bit load/store in V7 or above.
+#if defined(ARMV7)
+# define BASE_ATOMICOPS_HAS_LDREXD_AND_STREXD
+#endif
+
+typedef int32_t Atomic32;
+
+namespace base {
+namespace subtle {
+
+typedef int64_t Atomic64;
+
+// 32-bit low-level ops
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  Atomic32 oldval, res;
+  do {
+    __asm__ __volatile__(
+    "ldrex   %1, [%3]\n"
+    "mov     %0, #0\n"
+    "teq     %1, %4\n"
+    // The following IT (if-then) instruction is needed for the subsequent
+    // conditional instruction STREXEQ when compiling in THUMB mode.
+    // In ARM mode, the compiler/assembler will not generate any code for it.
+    "it      eq\n"
+    "strexeq %0, %5, [%3]\n"
+        : "=&r" (res), "=&r" (oldval), "+Qo" (*ptr)
+        : "r" (ptr), "Ir" (old_value), "r" (new_value)
+        : "cc");
+  } while (res);
+  return oldval;
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
+                                         Atomic32 new_value) {
+  Atomic32 tmp, old;
+  __asm__ __volatile__(
+      "1:\n"
+      "ldrex  %1, [%2]\n"
+      "strex  %0, %3, [%2]\n"
+      "teq    %0, #0\n"
+      "bne    1b"
+      : "=&r" (tmp), "=&r" (old)
+      : "r" (ptr), "r" (new_value)
+      : "cc", "memory");
+  return old;
+}
+
+inline void MemoryBarrier() {
+#if !defined(ARMV7)
+  uint32_t dest = 0;
+  __asm__ __volatile__("mcr p15,0,%0,c7,c10,5" :"=&r"(dest) : : "memory");
+#else
+  __asm__ __volatile__("dmb" : : : "memory");
+#endif
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  Atomic32 old_value = NoBarrier_AtomicExchange(ptr, new_value);
+  MemoryBarrier();
+  return old_value;
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  MemoryBarrier();
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 value = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+  MemoryBarrier();
+  return value;
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  MemoryBarrier();
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
+  MemoryBarrier();
+  *ptr = value;
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+  return *ptr;
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
+  Atomic32 value = *ptr;
+  MemoryBarrier();
+  return value;
+}
+
+// 64-bit versions are only available if LDREXD and STREXD instructions
+// are available.
+#ifdef BASE_ATOMICOPS_HAS_LDREXD_AND_STREXD
+
+#define BASE_HAS_ATOMIC64 1
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  Atomic64 oldval, res;
+  do {
+    __asm__ __volatile__(
+    "ldrexd   %1, [%3]\n"
+    "mov      %0, #0\n"
+    "teq      %Q1, %Q4\n"
+    // The following IT (if-then) instructions are needed for the subsequent
+    // conditional instructions when compiling in THUMB mode.
+    // In ARM mode, the compiler/assembler will not generate any code for it.
+    "it       eq\n"
+    "teqeq    %R1, %R4\n"
+    "it       eq\n"
+    "strexdeq %0, %5, [%3]\n"
+        : "=&r" (res), "=&r" (oldval), "+Q" (*ptr)
+        : "r" (ptr), "Ir" (old_value), "r" (new_value)
+        : "cc");
+  } while (res);
+  return oldval;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+  int store_failed;
+  Atomic64 old;
+  __asm__ __volatile__(
+      "1:\n"
+      "ldrexd  %1, [%2]\n"
+      "strexd  %0, %3, [%2]\n"
+      "teq     %0, #0\n"
+      "bne     1b"
+      : "=&r" (store_failed), "=&r" (old)
+      : "r" (ptr), "r" (new_value)
+      : "cc", "memory");
+  return old;
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  Atomic64 old_value = NoBarrier_AtomicExchange(ptr, new_value);
+  MemoryBarrier();
+  return old_value;
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  MemoryBarrier();
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  int store_failed;
+  Atomic64 dummy;
+  __asm__ __volatile__(
+      "1:\n"
+      // Dummy load to lock cache line.
+      "ldrexd  %1, [%3]\n"
+      "strexd  %0, %2, [%3]\n"
+      "teq     %0, #0\n"
+      "bne     1b"
+      : "=&r" (store_failed), "=&r"(dummy)
+      : "r"(value), "r" (ptr)
+      : "cc", "memory");
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  Atomic64 res;
+  __asm__ __volatile__(
+  "ldrexd   %0, [%1]\n"
+  "clrex\n"
+      : "=r" (res)
+      : "r"(ptr), "Q"(*ptr));
+  return res;
+}
+
+#else // BASE_ATOMICOPS_HAS_LDREXD_AND_STREXD
+
+inline void NotImplementedFatalError(const char *function_name) {
+  fprintf(stderr, "64-bit %s() not implemented on this platform\n",
+          function_name);
+  abort();
+}
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  NotImplementedFatalError("NoBarrier_CompareAndSwap");
+  return 0;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+  NotImplementedFatalError("NoBarrier_AtomicExchange");
+  return 0;
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  NotImplementedFatalError("Acquire_AtomicExchange");
+  return 0;
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  NotImplementedFatalError("Release_AtomicExchange");
+  return 0;
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  NotImplementedFatalError("NoBarrier_Store");
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  NotImplementedFatalError("NoBarrier_Load");
+  return 0;
+}
+
+#endif // BASE_ATOMICOPS_HAS_LDREXD_AND_STREXD
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  MemoryBarrier();
+  NoBarrier_Store(ptr, value);
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  Atomic64 value = NoBarrier_Load(ptr);
+  MemoryBarrier();
+  return value;
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 value = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+  MemoryBarrier();
+  return value;
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  MemoryBarrier();
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+}  // namespace subtle ends
+}  // namespace base ends
+
+#endif  // BASE_ATOMICOPS_INTERNALS_ARM_V6PLUS_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-gcc.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-gcc.h
new file mode 100644
index 000000000..4f81ce32a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-gcc.h
@@ -0,0 +1,183 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2014, Linaro
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// ---
+//
+// Author: Riku Voipio, riku.voipio@linaro.org
+//
+// atomic primitives implemented with gcc atomic intrinsics:
+// http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html
+//
+
+#ifndef BASE_ATOMICOPS_INTERNALS_GCC_GENERIC_H_
+#define BASE_ATOMICOPS_INTERNALS_GCC_GENERIC_H_
+
+#include 
+#include 
+#include "base/basictypes.h"
+
+typedef int32_t Atomic32;
+
+namespace base {
+namespace subtle {
+
+typedef int64_t Atomic64;
+
+inline void MemoryBarrier() {
+    __sync_synchronize();
+}
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  Atomic32 prev_value = old_value;
+  __atomic_compare_exchange_n(ptr, &prev_value, new_value,
+          0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
+  return prev_value;
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
+                                         Atomic32 new_value) {
+  return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_RELAXED);
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  return __atomic_exchange_n(const_cast(ptr), new_value,  __ATOMIC_ACQUIRE);
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_RELEASE);
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 prev_value = old_value;
+  __atomic_compare_exchange_n(ptr, &prev_value, new_value,
+          0, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED);
+  return prev_value;
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 prev_value = old_value;
+  __atomic_compare_exchange_n(ptr, &prev_value, new_value,
+          0, __ATOMIC_RELEASE, __ATOMIC_RELAXED);
+  return prev_value;
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
+  MemoryBarrier();
+  *ptr = value;
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+  return *ptr;
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
+  Atomic32 value = *ptr;
+  MemoryBarrier();
+  return value;
+}
+
+// 64-bit versions
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  Atomic64 prev_value = old_value;
+  __atomic_compare_exchange_n(ptr, &prev_value, new_value,
+          0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
+  return prev_value;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+  return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_RELAXED);
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  return __atomic_exchange_n(const_cast(ptr), new_value,  __ATOMIC_ACQUIRE);
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_RELEASE);
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 prev_value = old_value;
+  __atomic_compare_exchange_n(ptr, &prev_value, new_value,
+          0, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED);
+  return prev_value;
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 prev_value = old_value;
+  __atomic_compare_exchange_n(ptr, &prev_value, new_value,
+          0, __ATOMIC_RELEASE, __ATOMIC_RELAXED);
+  return prev_value;
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  MemoryBarrier();
+  *ptr = value;
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  return *ptr;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  Atomic64 value = *ptr;
+  MemoryBarrier();
+  return value;
+}
+
+}  // namespace base::subtle
+}  // namespace base
+
+#endif  // BASE_ATOMICOPS_INTERNALS_GCC_GENERIC_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-linuxppc.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-linuxppc.h
new file mode 100644
index 000000000..5c4d03c33
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-linuxppc.h
@@ -0,0 +1,405 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ */
+
+// Implementation of atomic operations for ppc-linux.  This file should not
+// be included directly.  Clients should instead include
+// "base/atomicops.h".
+
+#ifndef BASE_ATOMICOPS_INTERNALS_LINUXPPC_H_
+#define BASE_ATOMICOPS_INTERNALS_LINUXPPC_H_
+
+typedef int32_t Atomic32;
+
+#ifdef __PPC64__
+#define BASE_HAS_ATOMIC64 1
+#endif
+
+namespace base {
+namespace subtle {
+
+static inline void _sync(void) {
+  __asm__ __volatile__("sync": : : "memory");
+}
+
+static inline void _lwsync(void) {
+  // gcc defines __NO_LWSYNC__ when appropriate; see
+  //    http://gcc.gnu.org/ml/gcc-patches/2006-11/msg01238.html
+#ifdef __NO_LWSYNC__
+  __asm__ __volatile__("msync": : : "memory");
+#else
+  __asm__ __volatile__("lwsync": : : "memory");
+#endif
+}
+
+static inline void _isync(void) {
+  __asm__ __volatile__("isync": : : "memory");
+}
+
+static inline Atomic32 OSAtomicAdd32(Atomic32 amount, Atomic32 *value) {
+  Atomic32 t;
+  __asm__ __volatile__(
+"1:		lwarx   %0,0,%3\n\
+		add     %0,%2,%0\n\
+		stwcx.  %0,0,%3 \n\
+		bne-    1b"
+		: "=&r" (t), "+m" (*value)
+		: "r" (amount), "r" (value)
+                : "cc");
+  return t;
+}
+
+static inline Atomic32 OSAtomicAdd32Barrier(Atomic32 amount, Atomic32 *value) {
+  Atomic32 t;
+  _lwsync();
+  t = OSAtomicAdd32(amount, value);
+  // This is based on the code snippet in the architecture manual (Vol
+  // 2, Appendix B).  It's a little tricky: correctness depends on the
+  // fact that the code right before this (in OSAtomicAdd32) has a
+  // conditional branch with a data dependency on the update.
+  // Otherwise, we'd have to use sync.
+  _isync();
+  return t;
+}
+
+static inline bool OSAtomicCompareAndSwap32(Atomic32 old_value,
+                                            Atomic32 new_value,
+                                            Atomic32 *value) {
+  Atomic32 prev;
+  __asm__ __volatile__(
+"1:		lwarx   %0,0,%2\n\
+		cmpw    0,%0,%3\n\
+		bne-    2f\n\
+		stwcx.  %4,0,%2\n\
+		bne-    1b\n\
+2:"
+                : "=&r" (prev), "+m" (*value)
+                : "r" (value), "r" (old_value), "r" (new_value)
+                : "cc");
+  return prev == old_value;
+}
+
+static inline Atomic32 OSAtomicCompareAndSwap32Acquire(Atomic32 old_value,
+                                                       Atomic32 new_value,
+                                                       Atomic32 *value) {
+  Atomic32 t;
+  t = OSAtomicCompareAndSwap32(old_value, new_value, value);
+  // This is based on the code snippet in the architecture manual (Vol
+  // 2, Appendix B).  It's a little tricky: correctness depends on the
+  // fact that the code right before this (in
+  // OSAtomicCompareAndSwap32) has a conditional branch with a data
+  // dependency on the update.  Otherwise, we'd have to use sync.
+  _isync();
+  return t;
+}
+
+static inline Atomic32 OSAtomicCompareAndSwap32Release(Atomic32 old_value,
+                                                       Atomic32 new_value,
+                                                       Atomic32 *value) {
+  _lwsync();
+  return OSAtomicCompareAndSwap32(old_value, new_value, value);
+}
+
+typedef int64_t Atomic64;
+
+inline void MemoryBarrier() {
+  // This can't be _lwsync(); we need to order the immediately
+  // preceding stores against any load that may follow, but lwsync
+  // doesn't guarantee that.
+  _sync();
+}
+
+// 32-bit Versions.
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32 *ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  Atomic32 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap32(old_value, new_value,
+                                 const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32 *ptr,
+                                         Atomic32 new_value) {
+  Atomic32 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap32(old_value, new_value,
+                                     const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32 *ptr,
+                                       Atomic32 new_value) {
+  Atomic32 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap32Acquire(old_value, new_value,
+                                            const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32 *ptr,
+                                       Atomic32 new_value) {
+  Atomic32 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap32Release(old_value, new_value,
+                                            const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32 *ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap32Acquire(old_value, new_value,
+                                        const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32 *ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap32Release(old_value, new_value,
+                                        const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+#ifdef __PPC64__
+
+// 64-bit Versions.
+
+static inline Atomic64 OSAtomicAdd64(Atomic64 amount, Atomic64 *value) {
+  Atomic64 t;
+  __asm__ __volatile__(
+"1:		ldarx   %0,0,%3\n\
+		add     %0,%2,%0\n\
+		stdcx.  %0,0,%3 \n\
+		bne-    1b"
+		: "=&r" (t), "+m" (*value)
+		: "r" (amount), "r" (value)
+                : "cc");
+  return t;
+}
+
+static inline Atomic64 OSAtomicAdd64Barrier(Atomic64 amount, Atomic64 *value) {
+  Atomic64 t;
+  _lwsync();
+  t = OSAtomicAdd64(amount, value);
+  // This is based on the code snippet in the architecture manual (Vol
+  // 2, Appendix B).  It's a little tricky: correctness depends on the
+  // fact that the code right before this (in OSAtomicAdd64) has a
+  // conditional branch with a data dependency on the update.
+  // Otherwise, we'd have to use sync.
+  _isync();
+  return t;
+}
+
+static inline bool OSAtomicCompareAndSwap64(Atomic64 old_value,
+                                            Atomic64 new_value,
+                                            Atomic64 *value) {
+  Atomic64 prev;
+  __asm__ __volatile__(
+"1:		ldarx   %0,0,%2\n\
+		cmpd    0,%0,%3\n\
+		bne-    2f\n\
+		stdcx.  %4,0,%2\n\
+		bne-    1b\n\
+2:"
+                : "=&r" (prev), "+m" (*value)
+                : "r" (value), "r" (old_value), "r" (new_value)
+                : "cc");
+  return prev == old_value;
+}
+
+static inline Atomic64 OSAtomicCompareAndSwap64Acquire(Atomic64 old_value,
+                                                       Atomic64 new_value,
+                                                       Atomic64 *value) {
+  Atomic64 t;
+  t = OSAtomicCompareAndSwap64(old_value, new_value, value);
+  // This is based on the code snippet in the architecture manual (Vol
+  // 2, Appendix B).  It's a little tricky: correctness depends on the
+  // fact that the code right before this (in
+  // OSAtomicCompareAndSwap64) has a conditional branch with a data
+  // dependency on the update.  Otherwise, we'd have to use sync.
+  _isync();
+  return t;
+}
+
+static inline Atomic64 OSAtomicCompareAndSwap64Release(Atomic64 old_value,
+                                                       Atomic64 new_value,
+                                                       Atomic64 *value) {
+  _lwsync();
+  return OSAtomicCompareAndSwap64(old_value, new_value, value);
+}
+
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64 *ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  Atomic64 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap64(old_value, new_value,
+                                 const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64 *ptr,
+                                         Atomic64 new_value) {
+  Atomic64 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap64(old_value, new_value,
+                                     const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64 *ptr,
+                                       Atomic64 new_value) {
+  Atomic64 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap64Acquire(old_value, new_value,
+                                            const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64 *ptr,
+                                       Atomic64 new_value) {
+  Atomic64 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap64Release(old_value, new_value,
+                                            const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64 *ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap64Acquire(old_value, new_value,
+                                        const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64 *ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap64Release(old_value, new_value,
+                                        const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+#endif
+
+inline void NoBarrier_Store(volatile Atomic32 *ptr, Atomic32 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic32 *ptr, Atomic32 value) {
+  _lwsync();
+  *ptr = value;
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32 *ptr) {
+  return *ptr;
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32 *ptr) {
+  Atomic32 value = *ptr;
+  _lwsync();
+  return value;
+}
+
+#ifdef __PPC64__
+
+// 64-bit Versions.
+
+inline void NoBarrier_Store(volatile Atomic64 *ptr, Atomic64 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic64 *ptr, Atomic64 value) {
+  _lwsync();
+  *ptr = value;
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64 *ptr) {
+  return *ptr;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64 *ptr) {
+  Atomic64 value = *ptr;
+  _lwsync();
+  return value;
+}
+
+#endif
+
+}   // namespace base::subtle
+}   // namespace base
+
+#endif  // BASE_ATOMICOPS_INTERNALS_LINUXPPC_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-macosx.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-macosx.h
new file mode 100644
index 000000000..9a0c00a89
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-macosx.h
@@ -0,0 +1,341 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// Implementation of atomic operations for Mac OS X.  This file should not
+// be included directly.  Clients should instead include
+// "base/atomicops.h".
+
+#ifndef BASE_ATOMICOPS_INTERNALS_MACOSX_H_
+#define BASE_ATOMICOPS_INTERNALS_MACOSX_H_
+
+typedef int32_t Atomic32;
+
+// MacOS uses long for intptr_t, AtomicWord and Atomic32 are always different
+// on the Mac, even when they are the same size.  Similarly, on __ppc64__,
+// AtomicWord and Atomic64 are always different.  Thus, we need explicit
+// casting.
+#ifdef __LP64__
+#define AtomicWordCastType base::subtle::Atomic64
+#else
+#define AtomicWordCastType Atomic32
+#endif
+
+#if defined(__LP64__) || defined(__i386__)
+#define BASE_HAS_ATOMIC64 1  // Use only in tests and base/atomic*
+#endif
+
+#include 
+
+namespace base {
+namespace subtle {
+
+#if !defined(__LP64__) && defined(__ppc__)
+
+// The Mac 64-bit OSAtomic implementations are not available for 32-bit PowerPC,
+// while the underlying assembly instructions are available only some
+// implementations of PowerPC.
+
+// The following inline functions will fail with the error message at compile
+// time ONLY IF they are called.  So it is safe to use this header if user
+// code only calls AtomicWord and Atomic32 operations.
+//
+// NOTE(vchen): Implementation notes to implement the atomic ops below may
+// be found in "PowerPC Virtual Environment Architecture, Book II,
+// Version 2.02", January 28, 2005, Appendix B, page 46.  Unfortunately,
+// extra care must be taken to ensure data are properly 8-byte aligned, and
+// that data are returned correctly according to Mac OS X ABI specs.
+
+inline int64_t OSAtomicCompareAndSwap64(
+    int64_t oldValue, int64_t newValue, int64_t *theValue) {
+  __asm__ __volatile__(
+      "_OSAtomicCompareAndSwap64_not_supported_for_32_bit_ppc\n\t");
+  return 0;
+}
+
+inline int64_t OSAtomicAdd64(int64_t theAmount, int64_t *theValue) {
+  __asm__ __volatile__(
+      "_OSAtomicAdd64_not_supported_for_32_bit_ppc\n\t");
+  return 0;
+}
+
+inline int64_t OSAtomicCompareAndSwap64Barrier(
+    int64_t oldValue, int64_t newValue, int64_t *theValue) {
+  int64_t prev = OSAtomicCompareAndSwap64(oldValue, newValue, theValue);
+  OSMemoryBarrier();
+  return prev;
+}
+
+inline int64_t OSAtomicAdd64Barrier(
+    int64_t theAmount, int64_t *theValue) {
+  int64_t new_val = OSAtomicAdd64(theAmount, theValue);
+  OSMemoryBarrier();
+  return new_val;
+}
+#endif
+
+typedef int64_t Atomic64;
+
+inline void MemoryBarrier() {
+  OSMemoryBarrier();
+}
+
+// 32-bit Versions.
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32 *ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  Atomic32 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap32(old_value, new_value,
+                                 const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32 *ptr,
+                                         Atomic32 new_value) {
+  Atomic32 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap32(old_value, new_value,
+                                     const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32 *ptr,
+                                       Atomic32 new_value) {
+  Atomic32 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap32Barrier(old_value, new_value,
+                                            const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32 *ptr,
+                                       Atomic32 new_value) {
+  return Acquire_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32 *ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap32Barrier(old_value, new_value,
+                                        const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32 *ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  return Acquire_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic32 *ptr, Atomic32 value) {
+  MemoryBarrier();
+  *ptr = value;
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+  return *ptr;
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32 *ptr) {
+  Atomic32 value = *ptr;
+  MemoryBarrier();
+  return value;
+}
+
+// 64-bit version
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64 *ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  Atomic64 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap64(old_value, new_value,
+                                 const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64 *ptr,
+                                         Atomic64 new_value) {
+  Atomic64 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap64(old_value, new_value,
+                                     const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64 *ptr,
+                                       Atomic64 new_value) {
+  Atomic64 old_value;
+  do {
+    old_value = *ptr;
+  } while (!OSAtomicCompareAndSwap64Barrier(old_value, new_value,
+                                            const_cast(ptr)));
+  return old_value;
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64 *ptr,
+                                       Atomic64 new_value) {
+  return Acquire_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64 *ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 prev_value;
+  do {
+    if (OSAtomicCompareAndSwap64Barrier(old_value, new_value,
+                                        const_cast(ptr))) {
+      return old_value;
+    }
+    prev_value = *ptr;
+  } while (prev_value == old_value);
+  return prev_value;
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64 *ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  // The lib kern interface does not distinguish between
+  // Acquire and Release memory barriers; they are equivalent.
+  return Acquire_CompareAndSwap(ptr, old_value, new_value);
+}
+
+#ifdef __LP64__
+
+// 64-bit implementation on 64-bit platform
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic64 *ptr, Atomic64 value) {
+  MemoryBarrier();
+  *ptr = value;
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  return *ptr;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64 *ptr) {
+  Atomic64 value = *ptr;
+  MemoryBarrier();
+  return value;
+}
+
+#else
+
+// 64-bit implementation on 32-bit platform
+
+#if defined(__ppc__)
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+   __asm__ __volatile__(
+       "_NoBarrier_Store_not_supported_for_32_bit_ppc\n\t");
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+   __asm__ __volatile__(
+       "_NoBarrier_Load_not_supported_for_32_bit_ppc\n\t");
+   return 0;
+}
+
+#elif defined(__i386__)
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  __asm__ __volatile__("movq %1, %%mm0\n\t"    // Use mmx reg for 64-bit atomic
+                       "movq %%mm0, %0\n\t"  // moves (ptr could be read-only)
+                       "emms\n\t"              // Reset FP registers
+                       : "=m" (*ptr)
+                       : "m" (value)
+                       : // mark the FP stack and mmx registers as clobbered
+                         "st", "st(1)", "st(2)", "st(3)", "st(4)",
+                         "st(5)", "st(6)", "st(7)", "mm0", "mm1",
+                         "mm2", "mm3", "mm4", "mm5", "mm6", "mm7");
+
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  Atomic64 value;
+  __asm__ __volatile__("movq %1, %%mm0\n\t"  // Use mmx reg for 64-bit atomic
+                       "movq %%mm0, %0\n\t"  // moves (ptr could be read-only)
+                       "emms\n\t"            // Reset FP registers
+                       : "=m" (value)
+                       : "m" (*ptr)
+                       : // mark the FP stack and mmx registers as clobbered
+                         "st", "st(1)", "st(2)", "st(3)", "st(4)",
+                         "st(5)", "st(6)", "st(7)", "mm0", "mm1",
+                         "mm2", "mm3", "mm4", "mm5", "mm6", "mm7");
+
+  return value;
+}
+#endif
+
+
+inline void Release_Store(volatile Atomic64 *ptr, Atomic64 value) {
+  MemoryBarrier();
+  NoBarrier_Store(ptr, value);
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64 *ptr) {
+  Atomic64 value = NoBarrier_Load(ptr);
+  MemoryBarrier();
+  return value;
+}
+
+#endif  // __LP64__
+
+}   // namespace base::subtle
+}   // namespace base
+
+#endif  // BASE_ATOMICOPS_INTERNALS_MACOSX_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-mips.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-mips.h
new file mode 100644
index 000000000..58e0f1420
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-mips.h
@@ -0,0 +1,299 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2013, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// Author: Jovan Zelincevic 
+// based on atomicops-internals by Sanjay Ghemawat
+
+// This file is an internal atomic implementation, use base/atomicops.h instead.
+//
+// This code implements MIPS atomics.
+
+#ifndef BASE_ATOMICOPS_INTERNALS_MIPS_H_
+#define BASE_ATOMICOPS_INTERNALS_MIPS_H_
+
+#if (_MIPS_ISA == _MIPS_ISA_MIPS64)
+#define BASE_HAS_ATOMIC64 1
+#endif
+
+typedef int32_t Atomic32;
+
+namespace base {
+namespace subtle {
+
+// Atomically execute:
+// result = *ptr;
+// if (*ptr == old_value)
+// *ptr = new_value;
+// return result;
+//
+// I.e., replace "*ptr" with "new_value" if "*ptr" used to be "old_value".
+// Always return the old value of "*ptr"
+//
+// This routine implies no memory barriers.
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value)
+{
+    Atomic32 prev, tmp;
+    __asm__ volatile(
+        ".set   push                \n"
+        ".set   noreorder           \n"
+
+    "1:                             \n"
+        "ll     %0,     %5          \n" // prev = *ptr
+        "bne    %0,     %3,     2f  \n" // if (prev != old_value) goto 2
+        " move  %2,     %4          \n" // tmp = new_value
+        "sc     %2,     %1          \n" // *ptr = tmp (with atomic check)
+        "beqz   %2,     1b          \n" // start again on atomic error
+        " nop                       \n" // delay slot nop
+    "2:                             \n"
+
+        ".set   pop                 \n"
+        : "=&r" (prev), "=m" (*ptr),
+          "=&r" (tmp)
+        : "Ir" (old_value), "r" (new_value),
+          "m" (*ptr)
+        : "memory"
+    );
+    return prev;
+}
+
+// Atomically store new_value into *ptr, returning the previous value held in
+// *ptr. This routine implies no memory barriers.
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
+                                         Atomic32 new_value)
+{
+    Atomic32 temp, old;
+    __asm__ volatile(
+        ".set   push                \n"
+        ".set   noreorder           \n"
+
+    "1:                             \n"
+        "ll     %1,     %2          \n" // old = *ptr
+        "move   %0,     %3          \n" // temp = new_value
+        "sc     %0,     %2          \n" // *ptr = temp (with atomic check)
+        "beqz   %0,     1b          \n" // start again on atomic error
+        " nop                       \n" // delay slot nop
+
+        ".set   pop                 \n"
+        : "=&r" (temp), "=&r" (old),
+          "=m" (*ptr)
+        : "r" (new_value), "m" (*ptr)
+        : "memory"
+    );
+    return old;
+}
+
+inline void MemoryBarrier()
+{
+    __asm__ volatile("sync" : : : "memory");
+}
+
+// "Acquire" operations
+// ensure that no later memory access can be reordered ahead of the operation.
+// "Release" operations ensure that no previous memory access can be reordered
+// after the operation. "Barrier" operations have both "Acquire" and "Release"
+// semantics. A MemoryBarrier() has "Barrier" semantics, but does no memory
+// access.
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value)
+{
+    Atomic32 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+    MemoryBarrier();
+    return res;
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value)
+{
+    MemoryBarrier();
+    Atomic32 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+    return res;
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value)
+{
+    *ptr = value;
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value)
+{
+    Atomic32 old_value = NoBarrier_AtomicExchange(ptr, new_value);
+    MemoryBarrier();
+    return old_value;
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value)
+{
+    MemoryBarrier();
+    return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value)
+{
+    MemoryBarrier();
+    *ptr = value;
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr)
+{
+    return *ptr;
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr)
+{
+    Atomic32 value = *ptr;
+    MemoryBarrier();
+    return value;
+}
+
+#if (_MIPS_ISA == _MIPS_ISA_MIPS64) || (_MIPS_SIM == _MIPS_SIM_ABI64)
+
+typedef int64_t Atomic64;
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value)
+{
+    Atomic64 prev, tmp;
+    __asm__ volatile(
+        ".set   push                \n"
+        ".set   noreorder           \n"
+
+    "1:                             \n"
+        "lld    %0,     %5          \n" // prev = *ptr
+        "bne    %0,     %3,     2f  \n" // if (prev != old_value) goto 2
+        " move  %2,     %4          \n" // tmp = new_value
+        "scd    %2,     %1          \n" // *ptr = tmp (with atomic check)
+        "beqz   %2,     1b          \n" // start again on atomic error
+        " nop                       \n" // delay slot nop
+    "2:                             \n"
+
+        ".set   pop                 \n"
+        : "=&r" (prev), "=m" (*ptr),
+          "=&r" (tmp)
+        : "Ir" (old_value), "r" (new_value),
+          "m" (*ptr)
+        : "memory"
+    );
+    return prev;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value)
+{
+    Atomic64 temp, old;
+    __asm__ volatile(
+        ".set   push                \n"
+        ".set   noreorder           \n"
+
+    "1:                             \n"
+        "lld    %1,     %2          \n" // old = *ptr
+        "move   %0,     %3          \n" // temp = new_value
+        "scd    %0,     %2          \n" // *ptr = temp (with atomic check)
+        "beqz   %0,     1b          \n" // start again on atomic error
+        " nop                       \n" // delay slot nop
+
+        ".set   pop                 \n"
+        : "=&r" (temp), "=&r" (old),
+          "=m" (*ptr)
+        : "r" (new_value), "m" (*ptr)
+        : "memory"
+    );
+    return old;
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value)
+{
+    Atomic64 old_value = NoBarrier_AtomicExchange(ptr, new_value);
+    MemoryBarrier();
+    return old_value;
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value)
+{
+    Atomic64 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+    MemoryBarrier();
+    return res;
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value)
+{
+    MemoryBarrier();
+    Atomic64 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+    return res;
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value)
+{
+    *ptr = value;
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value)
+{
+    MemoryBarrier();
+    return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value)
+{
+    MemoryBarrier();
+    *ptr = value;
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr)
+{
+    return *ptr;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr)
+{
+    Atomic64 value = *ptr;
+    MemoryBarrier();
+    return value;
+}
+
+#endif
+
+}   // namespace base::subtle
+}   // namespace base
+
+#endif  // BASE_ATOMICOPS_INTERNALS_MIPS_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-windows.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-windows.h
new file mode 100644
index 000000000..f7c2907e8
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-windows.h
@@ -0,0 +1,428 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ */
+
+// Implementation of atomic operations using Windows API
+// functions.  This file should not be included directly.  Clients
+// should instead include "base/atomicops.h".
+
+#ifndef BASE_ATOMICOPS_INTERNALS_WINDOWS_H_
+#define BASE_ATOMICOPS_INTERNALS_WINDOWS_H_
+
+#include 
+#include 
+#include "base/basictypes.h"  // For COMPILE_ASSERT
+
+typedef int32 Atomic32;
+
+#if defined(_WIN64)
+#define BASE_HAS_ATOMIC64 1  // Use only in tests and base/atomic*
+#endif
+
+namespace base {
+namespace subtle {
+
+typedef int64 Atomic64;
+
+// 32-bit low-level operations on any platform
+
+extern "C" {
+// We use windows intrinsics when we can (they seem to be supported
+// well on MSVC 8.0 and above).  Unfortunately, in some
+// environments,  and  have conflicting
+// declarations of some other intrinsics, breaking compilation:
+//   http://connect.microsoft.com/VisualStudio/feedback/details/262047
+// Therefore, we simply declare the relevant intrinsics ourself.
+
+// MinGW has a bug in the header files where it doesn't indicate the
+// first argument is volatile -- they're not up to date.  See
+//   http://readlist.com/lists/lists.sourceforge.net/mingw-users/0/3861.html
+// We have to const_cast away the volatile to avoid compiler warnings.
+// TODO(csilvers): remove this once MinGW has updated MinGW/include/winbase.h
+#if defined(__MINGW32__)
+inline LONG FastInterlockedCompareExchange(volatile LONG* ptr,
+                                           LONG newval, LONG oldval) {
+  return ::InterlockedCompareExchange(const_cast(ptr), newval, oldval);
+}
+inline LONG FastInterlockedExchange(volatile LONG* ptr, LONG newval) {
+  return ::InterlockedExchange(const_cast(ptr), newval);
+}
+inline LONG FastInterlockedExchangeAdd(volatile LONG* ptr, LONG increment) {
+  return ::InterlockedExchangeAdd(const_cast(ptr), increment);
+}
+
+#elif _MSC_VER >= 1400   // intrinsics didn't work so well before MSVC 8.0
+// Unfortunately, in some environments,  and 
+// have conflicting declarations of some intrinsics, breaking
+// compilation.  So we declare the intrinsics we need ourselves.  See
+//   http://connect.microsoft.com/VisualStudio/feedback/details/262047
+LONG _InterlockedCompareExchange(volatile LONG* ptr, LONG newval, LONG oldval);
+#pragma intrinsic(_InterlockedCompareExchange)
+inline LONG FastInterlockedCompareExchange(volatile LONG* ptr,
+                                           LONG newval, LONG oldval) {
+  return _InterlockedCompareExchange(ptr, newval, oldval);
+}
+
+LONG _InterlockedExchange(volatile LONG* ptr, LONG newval);
+#pragma intrinsic(_InterlockedExchange)
+inline LONG FastInterlockedExchange(volatile LONG* ptr, LONG newval) {
+  return _InterlockedExchange(ptr, newval);
+}
+
+LONG _InterlockedExchangeAdd(volatile LONG* ptr, LONG increment);
+#pragma intrinsic(_InterlockedExchangeAdd)
+inline LONG FastInterlockedExchangeAdd(volatile LONG* ptr, LONG increment) {
+  return _InterlockedExchangeAdd(ptr, increment);
+}
+
+#else
+inline LONG FastInterlockedCompareExchange(volatile LONG* ptr,
+                                           LONG newval, LONG oldval) {
+  return ::InterlockedCompareExchange(ptr, newval, oldval);
+}
+inline LONG FastInterlockedExchange(volatile LONG* ptr, LONG newval) {
+  return ::InterlockedExchange(ptr, newval);
+}
+inline LONG FastInterlockedExchangeAdd(volatile LONG* ptr, LONG increment) {
+  return ::InterlockedExchangeAdd(ptr, increment);
+}
+
+#endif  // ifdef __MINGW32__
+}  // extern "C"
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  LONG result = FastInterlockedCompareExchange(
+      reinterpret_cast(ptr),
+      static_cast(new_value),
+      static_cast(old_value));
+  return static_cast(result);
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
+                                         Atomic32 new_value) {
+  LONG result = FastInterlockedExchange(
+      reinterpret_cast(ptr),
+      static_cast(new_value));
+  return static_cast(result);
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  // FastInterlockedExchange has both acquire and release memory barriers.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  // FastInterlockedExchange has both acquire and release memory barriers.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+}  // namespace base::subtle
+}  // namespace base
+
+
+// In msvc8/vs2005, winnt.h already contains a definition for
+// MemoryBarrier in the global namespace.  Add it there for earlier
+// versions and forward to it from within the namespace.
+#if !(defined(_MSC_VER) && _MSC_VER >= 1400)
+inline void MemoryBarrier() {
+  Atomic32 value = 0;
+  base::subtle::NoBarrier_AtomicExchange(&value, 0);
+                        // actually acts as a barrier in thisd implementation
+}
+#endif
+
+namespace base {
+namespace subtle {
+
+inline void MemoryBarrier() {
+  ::MemoryBarrier();
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
+  *ptr = value; // works w/o barrier for current Intel chips as of June 2005
+  // See comments in Atomic64 version of Release_Store() below.
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+  return *ptr;
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
+  Atomic32 value = *ptr;
+  return value;
+}
+
+// 64-bit operations
+
+#if defined(_WIN64) || defined(__MINGW64__)
+
+// 64-bit low-level operations on 64-bit platform.
+
+COMPILE_ASSERT(sizeof(Atomic64) == sizeof(PVOID), atomic_word_is_atomic);
+
+// These are the intrinsics needed for 64-bit operations.  Similar to the
+// 32-bit case above.
+
+extern "C" {
+#if defined(__MINGW64__)
+inline PVOID FastInterlockedCompareExchangePointer(volatile PVOID* ptr,
+                                                   PVOID newval, PVOID oldval) {
+  return ::InterlockedCompareExchangePointer(const_cast(ptr),
+                                             newval, oldval);
+}
+inline PVOID FastInterlockedExchangePointer(volatile PVOID* ptr, PVOID newval) {
+  return ::InterlockedExchangePointer(const_cast(ptr), newval);
+}
+inline LONGLONG FastInterlockedExchangeAdd64(volatile LONGLONG* ptr,
+                                             LONGLONG increment) {
+  return ::InterlockedExchangeAdd64(const_cast(ptr), increment);
+}
+
+#elif _MSC_VER >= 1400   // intrinsics didn't work so well before MSVC 8.0
+// Like above, we need to declare the intrinsics ourselves.
+PVOID _InterlockedCompareExchangePointer(volatile PVOID* ptr,
+                                         PVOID newval, PVOID oldval);
+#pragma intrinsic(_InterlockedCompareExchangePointer)
+inline PVOID FastInterlockedCompareExchangePointer(volatile PVOID* ptr,
+                                                   PVOID newval, PVOID oldval) {
+  return _InterlockedCompareExchangePointer(const_cast(ptr),
+                                            newval, oldval);
+}
+
+PVOID _InterlockedExchangePointer(volatile PVOID* ptr, PVOID newval);
+#pragma intrinsic(_InterlockedExchangePointer)
+inline PVOID FastInterlockedExchangePointer(volatile PVOID* ptr, PVOID newval) {
+  return _InterlockedExchangePointer(const_cast(ptr), newval);
+}
+
+LONGLONG _InterlockedExchangeAdd64(volatile LONGLONG* ptr, LONGLONG increment);
+#pragma intrinsic(_InterlockedExchangeAdd64)
+inline LONGLONG FastInterlockedExchangeAdd64(volatile LONGLONG* ptr,
+                                             LONGLONG increment) {
+  return _InterlockedExchangeAdd64(const_cast(ptr), increment);
+}
+
+#else
+inline PVOID FastInterlockedCompareExchangePointer(volatile PVOID* ptr,
+                                                   PVOID newval, PVOID oldval) {
+  return ::InterlockedCompareExchangePointer(ptr, newval, oldval);
+}
+inline PVOID FastInterlockedExchangePointer(volatile PVOID* ptr, PVOID newval) {
+  return ::InterlockedExchangePointer(ptr, newval);
+}
+inline LONGLONG FastInterlockedExchangeAdd64(volatile LONGLONG* ptr,
+                                         LONGLONG increment) {
+  return ::InterlockedExchangeAdd64(ptr, increment);
+}
+
+#endif  // ifdef __MINGW64__
+}  // extern "C"
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  PVOID result = FastInterlockedCompareExchangePointer(
+    reinterpret_cast(ptr),
+    reinterpret_cast(new_value), reinterpret_cast(old_value));
+  return reinterpret_cast(result);
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+  PVOID result = FastInterlockedExchangePointer(
+    reinterpret_cast(ptr),
+    reinterpret_cast(new_value));
+  return reinterpret_cast(result);
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  *ptr = value; // works w/o barrier for current Intel chips as of June 2005
+
+  // When new chips come out, check:
+  //  IA-32 Intel Architecture Software Developer's Manual, Volume 3:
+  //  System Programming Guide, Chatper 7: Multiple-processor management,
+  //  Section 7.2, Memory Ordering.
+  // Last seen at:
+  //   http://developer.intel.com/design/pentium4/manuals/index_new.htm
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  return *ptr;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  Atomic64 value = *ptr;
+  return value;
+}
+
+#else  // defined(_WIN64) || defined(__MINGW64__)
+
+// 64-bit low-level operations on 32-bit platform
+
+// TODO(vchen): The GNU assembly below must be converted to MSVC inline
+// assembly.  Then the file should be renamed to ...-x86-msvc.h, probably.
+
+inline void NotImplementedFatalError(const char *function_name) {
+  fprintf(stderr, "64-bit %s() not implemented on this platform\n",
+          function_name);
+  abort();
+}
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+#if 0 // Not implemented
+  Atomic64 prev;
+  __asm__ __volatile__("movl (%3), %%ebx\n\t"    // Move 64-bit new_value into
+                       "movl 4(%3), %%ecx\n\t"   // ecx:ebx
+                       "lock; cmpxchg8b %1\n\t"  // If edx:eax (old_value) same
+                       : "=A" (prev)             // as contents of ptr:
+                       : "m" (*ptr),             //   ecx:ebx => ptr
+                         "0" (old_value),        // else:
+                         "r" (&new_value)        //   old *ptr => edx:eax
+                       : "memory", "%ebx", "%ecx");
+  return prev;
+#else
+  NotImplementedFatalError("NoBarrier_CompareAndSwap");
+  return 0;
+#endif
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+#if 0 // Not implemented
+  __asm__ __volatile__(
+                       "movl (%2), %%ebx\n\t"    // Move 64-bit new_value into
+                       "movl 4(%2), %%ecx\n\t"   // ecx:ebx
+                       "0:\n\t"
+                       "movl %1, %%eax\n\t"      // Read contents of ptr into
+                       "movl 4%1, %%edx\n\t"     // edx:eax
+                       "lock; cmpxchg8b %1\n\t"  // Attempt cmpxchg; if *ptr
+                       "jnz 0b\n\t"              // is no longer edx:eax, loop
+                       : "=A" (new_value)
+                       : "m" (*ptr),
+                         "r" (&new_value)
+                       : "memory", "%ebx", "%ecx");
+  return new_value;  // Now it's the previous value.
+#else
+  NotImplementedFatalError("NoBarrier_AtomicExchange");
+  return 0;
+#endif
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptrValue, Atomic64 value)
+{
+ 	__asm {
+    	movq mm0, value;  // Use mmx reg for 64-bit atomic moves
+    	mov eax, ptrValue;
+    	movq [eax], mm0;
+    	emms;            // Empty mmx state to enable FP registers
+  	}
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  NoBarrier_Store(ptr, value);
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptrValue)
+{
+  	Atomic64 value;
+  	__asm {
+    	mov eax, ptrValue;
+    	movq mm0, [eax]; // Use mmx reg for 64-bit atomic moves
+    	movq value, mm0;
+    	emms; // Empty mmx state to enable FP registers
+  }
+  return value;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  Atomic64 value = NoBarrier_Load(ptr);
+  return value;
+}
+
+#endif  // defined(_WIN64) || defined(__MINGW64__)
+
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  // FastInterlockedExchange has both acquire and release memory barriers.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  // FastInterlockedExchange has both acquire and release memory barriers.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+}  // namespace base::subtle
+}  // namespace base
+
+#endif  // BASE_ATOMICOPS_INTERNALS_WINDOWS_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-x86.cc b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-x86.cc
new file mode 100644
index 000000000..20073c2d5
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-x86.cc
@@ -0,0 +1,112 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * This module gets enough CPU information to optimize the
+ * atomicops module on x86.
+ */
+
+#include "base/atomicops.h"
+#include "base/basictypes.h"
+#include "base/googleinit.h"
+#include "base/logging.h"
+#include 
+
+// This file only makes sense with atomicops-internals-x86.h -- it
+// depends on structs that are defined in that file.  If atomicops.h
+// doesn't sub-include that file, then we aren't needed, and shouldn't
+// try to do anything.
+#ifdef BASE_ATOMICOPS_INTERNALS_X86_H_
+
+// Inline cpuid instruction.  In PIC compilations, %ebx contains the address
+// of the global offset table.  To avoid breaking such executables, this code
+// must preserve that register's value across cpuid instructions.
+#if defined(__i386__)
+#define cpuid(a, b, c, d, inp) \
+  asm ("mov %%ebx, %%edi\n"    \
+       "cpuid\n"               \
+       "xchg %%edi, %%ebx\n"   \
+       : "=a" (a), "=D" (b), "=c" (c), "=d" (d) : "a" (inp))
+#elif defined (__x86_64__)
+#define cpuid(a, b, c, d, inp) \
+  asm ("mov %%rbx, %%rdi\n"    \
+       "cpuid\n"               \
+       "xchg %%rdi, %%rbx\n"   \
+       : "=a" (a), "=D" (b), "=c" (c), "=d" (d) : "a" (inp))
+#endif
+
+#if defined(cpuid)        // initialize the struct only on x86
+
+// Set the flags so that code will run correctly and conservatively
+// until InitGoogle() is called.
+struct AtomicOps_x86CPUFeatureStruct AtomicOps_Internalx86CPUFeatures = {
+  false,          // no SSE2
+  false           // no cmpxchg16b
+};
+
+// Initialize the AtomicOps_Internalx86CPUFeatures struct.
+static void AtomicOps_Internalx86CPUFeaturesInit() {
+  uint32 eax;
+  uint32 ebx;
+  uint32 ecx;
+  uint32 edx;
+
+  // Get vendor string (issue CPUID with eax = 0)
+  cpuid(eax, ebx, ecx, edx, 0);
+  char vendor[13];
+  memcpy(vendor, &ebx, 4);
+  memcpy(vendor + 4, &edx, 4);
+  memcpy(vendor + 8, &ecx, 4);
+  vendor[12] = 0;
+
+  // get feature flags in ecx/edx, and family/model in eax
+  cpuid(eax, ebx, ecx, edx, 1);
+
+  int family = (eax >> 8) & 0xf;        // family and model fields
+  int model = (eax >> 4) & 0xf;
+  if (family == 0xf) {                  // use extended family and model fields
+    family += (eax >> 20) & 0xff;
+    model += ((eax >> 16) & 0xf) << 4;
+  }
+
+  // edx bit 26 is SSE2 which we use to tell use whether we can use mfence
+  AtomicOps_Internalx86CPUFeatures.has_sse2 = ((edx >> 26) & 1);
+
+  // ecx bit 13 indicates whether the cmpxchg16b instruction is supported
+  AtomicOps_Internalx86CPUFeatures.has_cmpxchg16b = ((ecx >> 13) & 1);
+}
+
+REGISTER_MODULE_INITIALIZER(atomicops_x86, {
+  AtomicOps_Internalx86CPUFeaturesInit();
+});
+
+#endif
+
+#endif  /* ifdef BASE_ATOMICOPS_INTERNALS_X86_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-x86.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-x86.h
new file mode 100644
index 000000000..94c7aac77
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops-internals-x86.h
@@ -0,0 +1,353 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ */
+
+// Implementation of atomic operations for x86.  This file should not
+// be included directly.  Clients should instead include
+// "base/atomicops.h".
+
+#ifndef BASE_ATOMICOPS_INTERNALS_X86_H_
+#define BASE_ATOMICOPS_INTERNALS_X86_H_
+#include "base/basictypes.h"
+
+typedef int32_t Atomic32;
+#define BASE_HAS_ATOMIC64 1  // Use only in tests and base/atomic*
+
+
+// NOTE(vchen): x86 does not need to define AtomicWordCastType, because it
+// already matches Atomic32 or Atomic64, depending on the platform.
+
+
+// This struct is not part of the public API of this module; clients may not
+// use it.
+// Features of this x86.  Values may not be correct before main() is run,
+// but are set conservatively.
+struct AtomicOps_x86CPUFeatureStruct {
+  bool has_sse2;            // Processor has SSE2.
+  bool has_cmpxchg16b;      // Processor supports cmpxchg16b instruction.
+};
+
+ATTRIBUTE_VISIBILITY_HIDDEN
+extern struct AtomicOps_x86CPUFeatureStruct AtomicOps_Internalx86CPUFeatures;
+
+
+#define ATOMICOPS_COMPILER_BARRIER() __asm__ __volatile__("" : : : "memory")
+
+
+namespace base {
+namespace subtle {
+
+typedef int64_t Atomic64;
+
+// 32-bit low-level operations on any platform.
+
+inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                         Atomic32 old_value,
+                                         Atomic32 new_value) {
+  Atomic32 prev;
+  __asm__ __volatile__("lock; cmpxchgl %1,%2"
+                       : "=a" (prev)
+                       : "q" (new_value), "m" (*ptr), "0" (old_value)
+                       : "memory");
+  return prev;
+}
+
+inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
+                                         Atomic32 new_value) {
+  __asm__ __volatile__("xchgl %1,%0"  // The lock prefix is implicit for xchg.
+                       : "=r" (new_value)
+                       : "m" (*ptr), "0" (new_value)
+                       : "memory");
+  return new_value;  // Now it's the previous value.
+}
+
+inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  Atomic32 old_val = NoBarrier_AtomicExchange(ptr, new_value);
+  return old_val;
+}
+
+inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr,
+                                       Atomic32 new_value) {
+  // xchgl already has release memory barrier semantics.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  Atomic32 x = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+  return x;
+}
+
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
+  *ptr = value;
+}
+
+#if defined(__x86_64__)
+
+// 64-bit implementations of memory barrier can be simpler, because it
+// "mfence" is guaranteed to exist.
+inline void MemoryBarrier() {
+  __asm__ __volatile__("mfence" : : : "memory");
+}
+
+#else
+
+inline void MemoryBarrier() {
+  if (AtomicOps_Internalx86CPUFeatures.has_sse2) {
+    __asm__ __volatile__("mfence" : : : "memory");
+  } else { // mfence is faster but not present on PIII
+    Atomic32 x = 0;
+    Acquire_AtomicExchange(&x, 0);
+  }
+}
+
+#endif
+
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
+  ATOMICOPS_COMPILER_BARRIER();
+  *ptr = value; // An x86 store acts as a release barrier.
+  // See comments in Atomic64 version of Release_Store(), below.
+}
+
+inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
+  return *ptr;
+}
+
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
+  Atomic32 value = *ptr; // An x86 load acts as a acquire barrier.
+  // See comments in Atomic64 version of Release_Store(), below.
+  ATOMICOPS_COMPILER_BARRIER();
+  return value;
+}
+
+#if defined(__x86_64__)
+
+// 64-bit low-level operations on 64-bit platform.
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_value,
+                                         Atomic64 new_value) {
+  Atomic64 prev;
+  __asm__ __volatile__("lock; cmpxchgq %1,%2"
+                       : "=a" (prev)
+                       : "q" (new_value), "m" (*ptr), "0" (old_value)
+                       : "memory");
+  return prev;
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_value) {
+  __asm__ __volatile__("xchgq %1,%0"  // The lock prefix is implicit for xchg.
+                       : "=r" (new_value)
+                       : "m" (*ptr), "0" (new_value)
+                       : "memory");
+  return new_value;  // Now it's the previous value.
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  Atomic64 old_val = NoBarrier_AtomicExchange(ptr, new_value);
+  return old_val;
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_value) {
+  // xchgq already has release memory barrier semantics.
+  return NoBarrier_AtomicExchange(ptr, new_value);
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  *ptr = value;
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  ATOMICOPS_COMPILER_BARRIER();
+
+  *ptr = value; // An x86 store acts as a release barrier
+                // for current AMD/Intel chips as of Jan 2008.
+                // See also Acquire_Load(), below.
+
+  // When new chips come out, check:
+  //  IA-32 Intel Architecture Software Developer's Manual, Volume 3:
+  //  System Programming Guide, Chatper 7: Multiple-processor management,
+  //  Section 7.2, Memory Ordering.
+  // Last seen at:
+  //   http://developer.intel.com/design/pentium4/manuals/index_new.htm
+  //
+  // x86 stores/loads fail to act as barriers for a few instructions (clflush
+  // maskmovdqu maskmovq movntdq movnti movntpd movntps movntq) but these are
+  // not generated by the compiler, and are rare.  Users of these instructions
+  // need to know about cache behaviour in any case since all of these involve
+  // either flushing cache lines or non-temporal cache hints.
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  return *ptr;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  Atomic64 value = *ptr; // An x86 load acts as a acquire barrier,
+                         // for current AMD/Intel chips as of Jan 2008.
+                         // See also Release_Store(), above.
+  ATOMICOPS_COMPILER_BARRIER();
+  return value;
+}
+
+#else // defined(__x86_64__)
+
+// 64-bit low-level operations on 32-bit platform.
+
+#if !((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
+// For compilers older than gcc 4.1, we use inline asm.
+//
+// Potential pitfalls:
+//
+// 1. %ebx points to Global offset table (GOT) with -fPIC.
+//    We need to preserve this register.
+// 2. When explicit registers are used in inline asm, the
+//    compiler may not be aware of it and might try to reuse
+//    the same register for another argument which has constraints
+//    that allow it ("r" for example).
+
+inline Atomic64 __sync_val_compare_and_swap(volatile Atomic64* ptr,
+                                            Atomic64 old_value,
+                                            Atomic64 new_value) {
+  Atomic64 prev;
+  __asm__ __volatile__("push %%ebx\n\t"
+                       "movl (%3), %%ebx\n\t"    // Move 64-bit new_value into
+                       "movl 4(%3), %%ecx\n\t"   // ecx:ebx
+                       "lock; cmpxchg8b (%1)\n\t"// If edx:eax (old_value) same
+                       "pop %%ebx\n\t"
+                       : "=A" (prev)             // as contents of ptr:
+                       : "D" (ptr),              //   ecx:ebx => ptr
+                         "0" (old_value),        // else:
+                         "S" (&new_value)        //   old *ptr => edx:eax
+                       : "memory", "%ecx");
+  return prev;
+}
+#endif  // Compiler < gcc-4.1
+
+inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                         Atomic64 old_val,
+                                         Atomic64 new_val) {
+  return __sync_val_compare_and_swap(ptr, old_val, new_val);
+}
+
+inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
+                                         Atomic64 new_val) {
+  Atomic64 old_val;
+
+  do {
+    old_val = *ptr;
+  } while (__sync_val_compare_and_swap(ptr, old_val, new_val) != old_val);
+
+  return old_val;
+}
+
+inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_val) {
+  Atomic64 old_val = NoBarrier_AtomicExchange(ptr, new_val);
+  return old_val;
+}
+
+inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr,
+                                       Atomic64 new_val) {
+ return NoBarrier_AtomicExchange(ptr, new_val);
+}
+
+inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
+  __asm__ __volatile__("movq %1, %%mm0\n\t"  // Use mmx reg for 64-bit atomic
+                       "movq %%mm0, %0\n\t"  // moves (ptr could be read-only)
+                       "emms\n\t"            // Empty mmx state/Reset FP regs
+                       : "=m" (*ptr)
+                       : "m" (value)
+                       : // mark the FP stack and mmx registers as clobbered
+			 "st", "st(1)", "st(2)", "st(3)", "st(4)",
+                         "st(5)", "st(6)", "st(7)", "mm0", "mm1",
+                         "mm2", "mm3", "mm4", "mm5", "mm6", "mm7");
+}
+
+inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
+  ATOMICOPS_COMPILER_BARRIER();
+  NoBarrier_Store(ptr, value);
+}
+
+inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
+  Atomic64 value;
+  __asm__ __volatile__("movq %1, %%mm0\n\t"  // Use mmx reg for 64-bit atomic
+                       "movq %%mm0, %0\n\t"  // moves (ptr could be read-only)
+                       "emms\n\t"            // Empty mmx state/Reset FP regs
+                       : "=m" (value)
+                       : "m" (*ptr)
+                       : // mark the FP stack and mmx registers as clobbered
+                         "st", "st(1)", "st(2)", "st(3)", "st(4)",
+                         "st(5)", "st(6)", "st(7)", "mm0", "mm1",
+                         "mm2", "mm3", "mm4", "mm5", "mm6", "mm7");
+  return value;
+}
+
+inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
+  Atomic64 value = NoBarrier_Load(ptr);
+  ATOMICOPS_COMPILER_BARRIER();
+  return value;
+}
+
+#endif // defined(__x86_64__)
+
+inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  Atomic64 x = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+  return x;
+}
+
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                       Atomic64 old_value,
+                                       Atomic64 new_value) {
+  return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
+}
+
+} // namespace base::subtle
+} // namespace base
+
+#undef ATOMICOPS_COMPILER_BARRIER
+
+#endif  // BASE_ATOMICOPS_INTERNALS_X86_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/atomicops.h b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops.h
new file mode 100644
index 000000000..f1daf3bce
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/atomicops.h
@@ -0,0 +1,363 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ */
+
+// For atomic operations on statistics counters, see atomic_stats_counter.h.
+// For atomic operations on sequence numbers, see atomic_sequence_num.h.
+// For atomic operations on reference counts, see atomic_refcount.h.
+
+// Some fast atomic operations -- typically with machine-dependent
+// implementations.  This file may need editing as Google code is
+// ported to different architectures.
+
+// The routines exported by this module are subtle.  If you use them, even if
+// you get the code right, it will depend on careful reasoning about atomicity
+// and memory ordering; it will be less readable, and harder to maintain.  If
+// you plan to use these routines, you should have a good reason, such as solid
+// evidence that performance would otherwise suffer, or there being no
+// alternative.  You should assume only properties explicitly guaranteed by the
+// specifications in this file.  You are almost certainly _not_ writing code
+// just for the x86; if you assume x86 semantics, x86 hardware bugs and
+// implementations on other archtectures will cause your code to break.  If you
+// do not know what you are doing, avoid these routines, and use a Mutex.
+//
+// These following lower-level operations are typically useful only to people
+// implementing higher-level synchronization operations like spinlocks,
+// mutexes, and condition-variables.  They combine CompareAndSwap(), a load, or
+// a store with appropriate memory-ordering instructions.  "Acquire" operations
+// ensure that no later memory access can be reordered ahead of the operation.
+// "Release" operations ensure that no previous memory access can be reordered
+// after the operation.  "Barrier" operations have both "Acquire" and "Release"
+// semantics.   A MemoryBarrier() has "Barrier" semantics, but does no memory
+// access.
+//
+// It is incorrect to make direct assignments to/from an atomic variable.
+// You should use one of the Load or Store routines.  The NoBarrier
+// versions are provided when no barriers are needed:
+//   NoBarrier_Store()
+//   NoBarrier_Load()
+// Although there are currently no compiler enforcement, you are encouraged
+// to use these.  Moreover, if you choose to use base::subtle::Atomic64 type,
+// you MUST use one of the Load or Store routines to get correct behavior
+// on 32-bit platforms.
+//
+// The intent is eventually to put all of these routines in namespace
+// base::subtle
+
+#ifndef THREAD_ATOMICOPS_H_
+#define THREAD_ATOMICOPS_H_
+
+#include 
+#ifdef HAVE_STDINT_H
+#include 
+#endif
+
+// ------------------------------------------------------------------------
+// Include the platform specific implementations of the types
+// and operations listed below.  Implementations are to provide Atomic32
+// and Atomic64 operations. If there is a mismatch between intptr_t and
+// the Atomic32 or Atomic64 types for a platform, the platform-specific header
+// should define the macro, AtomicWordCastType in a clause similar to the
+// following:
+// #if ...pointers are 64 bits...
+// # define AtomicWordCastType base::subtle::Atomic64
+// #else
+// # define AtomicWordCastType Atomic32
+// #endif
+// TODO(csilvers): figure out ARCH_PIII/ARCH_K8 (perhaps via ./configure?)
+// ------------------------------------------------------------------------
+
+#include "base/arm_instruction_set_select.h"
+#define GCC_VERSION (__GNUC__ * 10000                 \
+                     + __GNUC_MINOR__ * 100           \
+                     + __GNUC_PATCHLEVEL__)
+
+#define CLANG_VERSION (__clang_major__ * 10000         \
+                       + __clang_minor__ * 100         \
+                       + __clang_patchlevel__)
+
+#if defined(TCMALLOC_PREFER_GCC_ATOMICS) && defined(__GNUC__) && GCC_VERSION >= 40700
+#include "base/atomicops-internals-gcc.h"
+#elif defined(TCMALLOC_PREFER_GCC_ATOMICS) && defined(__clang__) && CLANG_VERSION >= 30400
+#include "base/atomicops-internals-gcc.h"
+#elif defined(__MACH__) && defined(__APPLE__)
+#include "base/atomicops-internals-macosx.h"
+#elif defined(__GNUC__) && defined(ARMV6)
+#include "base/atomicops-internals-arm-v6plus.h"
+#elif defined(ARMV3)
+#include "base/atomicops-internals-arm-generic.h"
+#elif defined(__GNUC__) && (defined(__i386) || defined(__x86_64__))
+#include "base/atomicops-internals-x86.h"
+#elif defined(_WIN32)
+#include "base/atomicops-internals-windows.h"
+#elif defined(__linux__) && defined(__PPC__)
+#include "base/atomicops-internals-linuxppc.h"
+#elif defined(__GNUC__) && defined(__mips__)
+#include "base/atomicops-internals-mips.h"
+#elif defined(__GNUC__) && GCC_VERSION >= 40700
+#include "base/atomicops-internals-gcc.h"
+#elif defined(__clang__) && CLANG_VERSION >= 30400
+#include "base/atomicops-internals-gcc.h"
+#else
+#error You need to implement atomic operations for this architecture
+#endif
+
+// Signed type that can hold a pointer and supports the atomic ops below, as
+// well as atomic loads and stores.  Instances must be naturally-aligned.
+typedef intptr_t AtomicWord;
+
+#ifdef AtomicWordCastType
+// ------------------------------------------------------------------------
+// This section is needed only when explicit type casting is required to
+// cast AtomicWord to one of the basic atomic types (Atomic64 or Atomic32).
+// It also serves to document the AtomicWord interface.
+// ------------------------------------------------------------------------
+
+namespace base {
+namespace subtle {
+
+// Atomically execute:
+//      result = *ptr;
+//      if (*ptr == old_value)
+//        *ptr = new_value;
+//      return result;
+//
+// I.e., replace "*ptr" with "new_value" if "*ptr" used to be "old_value".
+// Always return the old value of "*ptr"
+//
+// This routine implies no memory barriers.
+inline AtomicWord NoBarrier_CompareAndSwap(volatile AtomicWord* ptr,
+                                           AtomicWord old_value,
+                                           AtomicWord new_value) {
+  return NoBarrier_CompareAndSwap(
+      reinterpret_cast(ptr),
+      old_value, new_value);
+}
+
+// Atomically store new_value into *ptr, returning the previous value held in
+// *ptr.  This routine implies no memory barriers.
+inline AtomicWord NoBarrier_AtomicExchange(volatile AtomicWord* ptr,
+                                           AtomicWord new_value) {
+  return NoBarrier_AtomicExchange(
+      reinterpret_cast(ptr), new_value);
+}
+
+inline AtomicWord Acquire_AtomicExchange(volatile AtomicWord* ptr,
+                                         AtomicWord new_value) {
+  return Acquire_AtomicExchange(
+      reinterpret_cast(ptr), new_value);
+}
+
+inline AtomicWord Release_AtomicExchange(volatile AtomicWord* ptr,
+                                         AtomicWord new_value) {
+  return Release_AtomicExchange(
+      reinterpret_cast(ptr), new_value);
+}
+
+inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr,
+                                         AtomicWord old_value,
+                                         AtomicWord new_value) {
+  return base::subtle::Acquire_CompareAndSwap(
+      reinterpret_cast(ptr),
+      old_value, new_value);
+}
+
+inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr,
+                                         AtomicWord old_value,
+                                         AtomicWord new_value) {
+  return base::subtle::Release_CompareAndSwap(
+      reinterpret_cast(ptr),
+      old_value, new_value);
+}
+
+inline void NoBarrier_Store(volatile AtomicWord *ptr, AtomicWord value) {
+  NoBarrier_Store(
+      reinterpret_cast(ptr), value);
+}
+
+inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) {
+  return base::subtle::Release_Store(
+      reinterpret_cast(ptr), value);
+}
+
+inline AtomicWord NoBarrier_Load(volatile const AtomicWord *ptr) {
+  return NoBarrier_Load(
+      reinterpret_cast(ptr));
+}
+
+inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) {
+  return base::subtle::Acquire_Load(
+      reinterpret_cast(ptr));
+}
+
+}  // namespace base::subtle
+}  // namespace base
+#endif  // AtomicWordCastType
+
+// ------------------------------------------------------------------------
+// Commented out type definitions and method declarations for documentation
+// of the interface provided by this module.
+// ------------------------------------------------------------------------
+
+#if 0
+
+// Signed 32-bit type that supports the atomic ops below, as well as atomic
+// loads and stores.  Instances must be naturally aligned.  This type differs
+// from AtomicWord in 64-bit binaries where AtomicWord is 64-bits.
+typedef int32_t Atomic32;
+
+// Corresponding operations on Atomic32
+namespace base {
+namespace subtle {
+
+// Signed 64-bit type that supports the atomic ops below, as well as atomic
+// loads and stores.  Instances must be naturally aligned.  This type differs
+// from AtomicWord in 32-bit binaries where AtomicWord is 32-bits.
+typedef int64_t Atomic64;
+
+Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
+                                  Atomic32 old_value,
+                                  Atomic32 new_value);
+Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value);
+Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value);
+Atomic32 Release_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value);
+Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                Atomic32 old_value,
+                                Atomic32 new_value);
+Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                Atomic32 old_value,
+                                Atomic32 new_value);
+void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value);
+void Release_Store(volatile Atomic32* ptr, Atomic32 value);
+Atomic32 NoBarrier_Load(volatile const Atomic32* ptr);
+Atomic32 Acquire_Load(volatile const Atomic32* ptr);
+
+// Corresponding operations on Atomic64
+Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
+                                  Atomic64 old_value,
+                                  Atomic64 new_value);
+Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value);
+Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value);
+Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value);
+
+Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
+                                Atomic64 old_value,
+                                Atomic64 new_value);
+Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+                                Atomic64 old_value,
+                                Atomic64 new_value);
+void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value);
+void Release_Store(volatile Atomic64* ptr, Atomic64 value);
+Atomic64 NoBarrier_Load(volatile const Atomic64* ptr);
+Atomic64 Acquire_Load(volatile const Atomic64* ptr);
+}  // namespace base::subtle
+}  // namespace base
+
+void MemoryBarrier();
+
+#endif  // 0
+
+
+// ------------------------------------------------------------------------
+// The following are to be deprecated when all uses have been changed to
+// use the base::subtle namespace.
+// ------------------------------------------------------------------------
+
+#ifdef AtomicWordCastType
+// AtomicWord versions to be deprecated
+inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr,
+                                         AtomicWord old_value,
+                                         AtomicWord new_value) {
+  return base::subtle::Acquire_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr,
+                                         AtomicWord old_value,
+                                         AtomicWord new_value) {
+  return base::subtle::Release_CompareAndSwap(ptr, old_value, new_value);
+}
+
+inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) {
+  return base::subtle::Release_Store(ptr, value);
+}
+
+inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) {
+  return base::subtle::Acquire_Load(ptr);
+}
+#endif  // AtomicWordCastType
+
+// 32-bit Acquire/Release operations to be deprecated.
+
+inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  return base::subtle::Acquire_CompareAndSwap(ptr, old_value, new_value);
+}
+inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
+                                       Atomic32 old_value,
+                                       Atomic32 new_value) {
+  return base::subtle::Release_CompareAndSwap(ptr, old_value, new_value);
+}
+inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
+  return base::subtle::Release_Store(ptr, value);
+}
+inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
+  return base::subtle::Acquire_Load(ptr);
+}
+
+#ifdef BASE_HAS_ATOMIC64
+
+// 64-bit Acquire/Release operations to be deprecated.
+
+inline base::subtle::Atomic64 Acquire_CompareAndSwap(
+    volatile base::subtle::Atomic64* ptr,
+    base::subtle::Atomic64 old_value, base::subtle::Atomic64 new_value) {
+  return base::subtle::Acquire_CompareAndSwap(ptr, old_value, new_value);
+}
+inline base::subtle::Atomic64 Release_CompareAndSwap(
+    volatile base::subtle::Atomic64* ptr,
+    base::subtle::Atomic64 old_value, base::subtle::Atomic64 new_value) {
+  return base::subtle::Release_CompareAndSwap(ptr, old_value, new_value);
+}
+inline void Release_Store(
+    volatile base::subtle::Atomic64* ptr, base::subtle::Atomic64 value) {
+  return base::subtle::Release_Store(ptr, value);
+}
+inline base::subtle::Atomic64 Acquire_Load(
+    volatile const base::subtle::Atomic64* ptr) {
+  return base::subtle::Acquire_Load(ptr);
+}
+
+#endif  // BASE_HAS_ATOMIC64
+
+#endif  // THREAD_ATOMICOPS_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/basictypes.h b/trunk/3rdparty/gperftools-2-fit/src/base/basictypes.h
new file mode 100644
index 000000000..ea87a6db0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/basictypes.h
@@ -0,0 +1,440 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef _BASICTYPES_H_
+#define _BASICTYPES_H_
+
+#include 
+#include        // for memcpy()
+#ifdef HAVE_INTTYPES_H
+#include      // gets us PRId64, etc
+#endif
+
+// To use this in an autoconf setting, make sure you run the following
+// autoconf macros:
+//    AC_HEADER_STDC              /* for stdint_h and inttypes_h */
+//    AC_CHECK_TYPES([__int64])   /* defined in some windows platforms */
+
+#ifdef HAVE_INTTYPES_H
+#include            // uint16_t might be here; PRId64 too.
+#endif
+#ifdef HAVE_STDINT_H
+#include              // to get uint16_t (ISO naming madness)
+#endif
+#include           // our last best hope for uint16_t
+
+// Standard typedefs
+// All Google code is compiled with -funsigned-char to make "char"
+// unsigned.  Google code therefore doesn't need a "uchar" type.
+// TODO(csilvers): how do we make sure unsigned-char works on non-gcc systems?
+typedef signed char         schar;
+typedef int8_t              int8;
+typedef int16_t             int16;
+typedef int32_t             int32;
+typedef int64_t             int64;
+
+// NOTE: unsigned types are DANGEROUS in loops and other arithmetical
+// places.  Use the signed types unless your variable represents a bit
+// pattern (eg a hash value) or you really need the extra bit.  Do NOT
+// use 'unsigned' to express "this value should always be positive";
+// use assertions for this.
+
+typedef uint8_t            uint8;
+typedef uint16_t           uint16;
+typedef uint32_t           uint32;
+typedef uint64_t           uint64;
+
+const uint16 kuint16max = (   (uint16) 0xFFFF);
+const uint32 kuint32max = (   (uint32) 0xFFFFFFFF);
+const uint64 kuint64max = ( (((uint64) kuint32max) << 32) | kuint32max );
+
+const  int8  kint8max   = (   (  int8) 0x7F);
+const  int16 kint16max  = (   ( int16) 0x7FFF);
+const  int32 kint32max  = (   ( int32) 0x7FFFFFFF);
+const  int64 kint64max =  ( ((( int64) kint32max) << 32) | kuint32max );
+
+const  int8  kint8min   = (   (  int8) 0x80);
+const  int16 kint16min  = (   ( int16) 0x8000);
+const  int32 kint32min  = (   ( int32) 0x80000000);
+const  int64 kint64min =  ( (((uint64) kint32min) << 32) | 0 );
+
+// Define the "portable" printf and scanf macros, if they're not
+// already there (via the inttypes.h we #included above, hopefully).
+// Mostly it's old systems that don't support inttypes.h, so we assume
+// they're 32 bit.
+#ifndef PRIx64
+#define PRIx64 "llx"
+#endif
+#ifndef SCNx64
+#define SCNx64 "llx"
+#endif
+#ifndef PRId64
+#define PRId64 "lld"
+#endif
+#ifndef SCNd64
+#define SCNd64 "lld"
+#endif
+#ifndef PRIu64
+#define PRIu64 "llu"
+#endif
+#ifndef PRIxPTR
+#define PRIxPTR "lx"
+#endif
+
+// Also allow for printing of a pthread_t.
+#define GPRIuPTHREAD "lu"
+#define GPRIxPTHREAD "lx"
+#if defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__APPLE__) || defined(__FreeBSD__)
+#define PRINTABLE_PTHREAD(pthreadt) reinterpret_cast(pthreadt)
+#else
+#define PRINTABLE_PTHREAD(pthreadt) pthreadt
+#endif
+
+#if defined(__GNUC__)
+#define PREDICT_TRUE(x) __builtin_expect(!!(x), 1)
+#define PREDICT_FALSE(x) __builtin_expect(!!(x), 0)
+#else
+#define PREDICT_TRUE(x) (x)
+#define PREDICT_FALSE(x) (x)
+#endif
+
+// A macro to disallow the evil copy constructor and operator= functions
+// This should be used in the private: declarations for a class
+#define DISALLOW_EVIL_CONSTRUCTORS(TypeName)    \
+  TypeName(const TypeName&);                    \
+  void operator=(const TypeName&)
+
+// An alternate name that leaves out the moral judgment... :-)
+#define DISALLOW_COPY_AND_ASSIGN(TypeName) DISALLOW_EVIL_CONSTRUCTORS(TypeName)
+
+// The COMPILE_ASSERT macro can be used to verify that a compile time
+// expression is true. For example, you could use it to verify the
+// size of a static array:
+//
+//   COMPILE_ASSERT(sizeof(num_content_type_names) == sizeof(int),
+//                  content_type_names_incorrect_size);
+//
+// or to make sure a struct is smaller than a certain size:
+//
+//   COMPILE_ASSERT(sizeof(foo) < 128, foo_too_large);
+//
+// The second argument to the macro is the name of the variable. If
+// the expression is false, most compilers will issue a warning/error
+// containing the name of the variable.
+//
+// Implementation details of COMPILE_ASSERT:
+//
+// - COMPILE_ASSERT works by defining an array type that has -1
+//   elements (and thus is invalid) when the expression is false.
+//
+// - The simpler definition
+//
+//     #define COMPILE_ASSERT(expr, msg) typedef char msg[(expr) ? 1 : -1]
+//
+//   does not work, as gcc supports variable-length arrays whose sizes
+//   are determined at run-time (this is gcc's extension and not part
+//   of the C++ standard).  As a result, gcc fails to reject the
+//   following code with the simple definition:
+//
+//     int foo;
+//     COMPILE_ASSERT(foo, msg); // not supposed to compile as foo is
+//                               // not a compile-time constant.
+//
+// - By using the type CompileAssert<(bool(expr))>, we ensures that
+//   expr is a compile-time constant.  (Template arguments must be
+//   determined at compile-time.)
+//
+// - The outter parentheses in CompileAssert<(bool(expr))> are necessary
+//   to work around a bug in gcc 3.4.4 and 4.0.1.  If we had written
+//
+//     CompileAssert
+//
+//   instead, these compilers will refuse to compile
+//
+//     COMPILE_ASSERT(5 > 0, some_message);
+//
+//   (They seem to think the ">" in "5 > 0" marks the end of the
+//   template argument list.)
+//
+// - The array size is (bool(expr) ? 1 : -1), instead of simply
+//
+//     ((expr) ? 1 : -1).
+//
+//   This is to avoid running into a bug in MS VC 7.1, which
+//   causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1.
+
+template 
+struct CompileAssert {
+};
+
+#ifdef HAVE___ATTRIBUTE__
+# define ATTRIBUTE_UNUSED __attribute__((unused))
+#else
+# define ATTRIBUTE_UNUSED
+#endif
+
+#if defined(HAVE___ATTRIBUTE__) && defined(HAVE_TLS)
+#define ATTR_INITIAL_EXEC __attribute__ ((tls_model ("initial-exec")))
+#else
+#define ATTR_INITIAL_EXEC
+#endif
+
+#define COMPILE_ASSERT(expr, msg)                               \
+  typedef CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1] ATTRIBUTE_UNUSED
+
+#define arraysize(a)  (sizeof(a) / sizeof(*(a)))
+
+#define OFFSETOF_MEMBER(strct, field)                                   \
+   (reinterpret_cast(&reinterpret_cast(16)->field) -     \
+    reinterpret_cast(16))
+
+// bit_cast implements the equivalent of
+// "*reinterpret_cast(&source)".
+//
+// The reinterpret_cast method would produce undefined behavior
+// according to ISO C++ specification section 3.10 -15 -.
+// bit_cast<> calls memcpy() which is blessed by the standard,
+// especially by the example in section 3.9.
+//
+// Fortunately memcpy() is very fast.  In optimized mode, with a
+// constant size, gcc 2.95.3, gcc 4.0.1, and msvc 7.1 produce inline
+// code with the minimal amount of data movement.  On a 32-bit system,
+// memcpy(d,s,4) compiles to one load and one store, and memcpy(d,s,8)
+// compiles to two loads and two stores.
+
+template 
+inline Dest bit_cast(const Source& source) {
+  COMPILE_ASSERT(sizeof(Dest) == sizeof(Source), bitcasting_unequal_sizes);
+  Dest dest;
+  memcpy(&dest, &source, sizeof(dest));
+  return dest;
+}
+
+// bit_store implements the equivalent of
+// "dest = *reinterpret_cast(&source)".
+//
+// This prevents undefined behavior when the dest pointer is unaligned.
+template 
+inline void bit_store(Dest *dest, const Source *source) {
+  COMPILE_ASSERT(sizeof(Dest) == sizeof(Source), bitcasting_unequal_sizes);
+  memcpy(dest, source, sizeof(Dest));
+}
+
+#ifdef HAVE___ATTRIBUTE__
+# define ATTRIBUTE_WEAK      __attribute__((weak))
+# define ATTRIBUTE_NOINLINE  __attribute__((noinline))
+#else
+# define ATTRIBUTE_WEAK
+# define ATTRIBUTE_NOINLINE
+#endif
+
+#if defined(HAVE___ATTRIBUTE__) && defined(__ELF__)
+# define ATTRIBUTE_VISIBILITY_HIDDEN __attribute__((visibility("hidden")))
+#else
+# define ATTRIBUTE_VISIBILITY_HIDDEN
+#endif
+
+// Section attributes are supported for both ELF and Mach-O, but in
+// very different ways.  Here's the API we provide:
+// 1) ATTRIBUTE_SECTION: put this with the declaration of all functions
+//    you want to be in the same linker section
+// 2) DEFINE_ATTRIBUTE_SECTION_VARS: must be called once per unique
+//    name.  You want to make sure this is executed before any
+//    DECLARE_ATTRIBUTE_SECTION_VARS; the easiest way is to put them
+//    in the same .cc file.  Put this call at the global level.
+// 3) INIT_ATTRIBUTE_SECTION_VARS: you can scatter calls to this in
+//    multiple places to help ensure execution before any
+//    DECLARE_ATTRIBUTE_SECTION_VARS.  You must have at least one
+//    DEFINE, but you can have many INITs.  Put each in its own scope.
+// 4) DECLARE_ATTRIBUTE_SECTION_VARS: must be called before using
+//    ATTRIBUTE_SECTION_START or ATTRIBUTE_SECTION_STOP on a name.
+//    Put this call at the global level.
+// 5) ATTRIBUTE_SECTION_START/ATTRIBUTE_SECTION_STOP: call this to say
+//    where in memory a given section is.  All functions declared with
+//    ATTRIBUTE_SECTION are guaranteed to be between START and STOP.
+
+#if defined(HAVE___ATTRIBUTE__) && defined(__ELF__)
+# define ATTRIBUTE_SECTION(name) __attribute__ ((section (#name))) __attribute__((noinline))
+
+  // Weak section declaration to be used as a global declaration
+  // for ATTRIBUTE_SECTION_START|STOP(name) to compile and link
+  // even without functions with ATTRIBUTE_SECTION(name).
+# define DECLARE_ATTRIBUTE_SECTION_VARS(name) \
+    extern char __start_##name[] ATTRIBUTE_WEAK; \
+    extern char __stop_##name[] ATTRIBUTE_WEAK
+# define INIT_ATTRIBUTE_SECTION_VARS(name)     // no-op for ELF
+# define DEFINE_ATTRIBUTE_SECTION_VARS(name)   // no-op for ELF
+
+  // Return void* pointers to start/end of a section of code with functions
+  // having ATTRIBUTE_SECTION(name), or 0 if no such function exists.
+  // One must DECLARE_ATTRIBUTE_SECTION(name) for this to compile and link.
+# define ATTRIBUTE_SECTION_START(name) (reinterpret_cast(__start_##name))
+# define ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast(__stop_##name))
+# define HAVE_ATTRIBUTE_SECTION_START 1
+
+#elif defined(HAVE___ATTRIBUTE__) && defined(__MACH__)
+# define ATTRIBUTE_SECTION(name) __attribute__ ((section ("__TEXT, " #name)))
+
+#include 
+#include 
+class AssignAttributeStartEnd {
+ public:
+  AssignAttributeStartEnd(const char* name, char** pstart, char** pend) {
+    // Find out what dynamic library name is defined in
+    if (_dyld_present()) {
+      for (int i = _dyld_image_count() - 1; i >= 0; --i) {
+        const mach_header* hdr = _dyld_get_image_header(i);
+#ifdef MH_MAGIC_64
+        if (hdr->magic == MH_MAGIC_64) {
+          uint64_t len;
+          *pstart = getsectdatafromheader_64((mach_header_64*)hdr,
+                                             "__TEXT", name, &len);
+          if (*pstart) {   // NULL if not defined in this dynamic library
+            *pstart += _dyld_get_image_vmaddr_slide(i);   // correct for reloc
+            *pend = *pstart + len;
+            return;
+          }
+        }
+#endif
+        if (hdr->magic == MH_MAGIC) {
+          uint32_t len;
+          *pstart = getsectdatafromheader(hdr, "__TEXT", name, &len);
+          if (*pstart) {   // NULL if not defined in this dynamic library
+            *pstart += _dyld_get_image_vmaddr_slide(i);   // correct for reloc
+            *pend = *pstart + len;
+            return;
+          }
+        }
+      }
+    }
+    // If we get here, not defined in a dll at all.  See if defined statically.
+    unsigned long len;    // don't ask me why this type isn't uint32_t too...
+    *pstart = getsectdata("__TEXT", name, &len);
+    *pend = *pstart + len;
+  }
+};
+
+#define DECLARE_ATTRIBUTE_SECTION_VARS(name)    \
+  extern char* __start_##name;                  \
+  extern char* __stop_##name
+
+#define INIT_ATTRIBUTE_SECTION_VARS(name)               \
+  DECLARE_ATTRIBUTE_SECTION_VARS(name);                 \
+  static const AssignAttributeStartEnd __assign_##name( \
+    #name, &__start_##name, &__stop_##name)
+
+#define DEFINE_ATTRIBUTE_SECTION_VARS(name)     \
+  char* __start_##name, *__stop_##name;         \
+  INIT_ATTRIBUTE_SECTION_VARS(name)
+
+# define ATTRIBUTE_SECTION_START(name) (reinterpret_cast(__start_##name))
+# define ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast(__stop_##name))
+# define HAVE_ATTRIBUTE_SECTION_START 1
+
+#else  // not HAVE___ATTRIBUTE__ && __ELF__, nor HAVE___ATTRIBUTE__ && __MACH__
+# define ATTRIBUTE_SECTION(name)
+# define DECLARE_ATTRIBUTE_SECTION_VARS(name)
+# define INIT_ATTRIBUTE_SECTION_VARS(name)
+# define DEFINE_ATTRIBUTE_SECTION_VARS(name)
+# define ATTRIBUTE_SECTION_START(name) (reinterpret_cast(0))
+# define ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast(0))
+
+#endif  // HAVE___ATTRIBUTE__ and __ELF__ or __MACH__
+
+#if defined(HAVE___ATTRIBUTE__)
+# if (defined(__i386__) || defined(__x86_64__))
+#   define CACHELINE_ALIGNED __attribute__((aligned(64)))
+# elif (defined(__PPC__) || defined(__PPC64__))
+#   define CACHELINE_ALIGNED __attribute__((aligned(16)))
+# elif (defined(__arm__))
+#   define CACHELINE_ALIGNED __attribute__((aligned(64)))
+    // some ARMs have shorter cache lines (ARM1176JZF-S is 32 bytes for example) but obviously 64-byte aligned implies 32-byte aligned
+# elif (defined(__mips__))
+#   define CACHELINE_ALIGNED __attribute__((aligned(128)))
+# elif (defined(__aarch64__))
+#   define CACHELINE_ALIGNED __attribute__((aligned(64)))
+    // implementation specific, Cortex-A53 and 57 should have 64 bytes
+# elif (defined(__s390__))
+#   define CACHELINE_ALIGNED __attribute__((aligned(256)))
+# elif (defined(__riscv) && __riscv_xlen == 64)
+#   define CACHELINE_ALIGNED __attribute__((aligned(64)))
+# elif (defined(__e2k__))
+#   define CACHELINE_ALIGNED __attribute__((aligned(64)))
+# else
+#   error Could not determine cache line length - unknown architecture
+# endif
+#else
+# define CACHELINE_ALIGNED
+#endif  // defined(HAVE___ATTRIBUTE__)
+
+#if defined(HAVE___ATTRIBUTE__ALIGNED_FN)
+#  define CACHELINE_ALIGNED_FN CACHELINE_ALIGNED
+#else
+#  define CACHELINE_ALIGNED_FN
+#endif
+
+// Structure for discovering alignment
+union MemoryAligner {
+  void*  p;
+  double d;
+  size_t s;
+} CACHELINE_ALIGNED;
+
+#if defined(HAVE___ATTRIBUTE__) && defined(__ELF__)
+#define ATTRIBUTE_HIDDEN __attribute__((visibility("hidden")))
+#else
+#define ATTRIBUTE_HIDDEN
+#endif
+
+#if defined(__GNUC__)
+#define ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline))
+#elif defined(_MSC_VER)
+#define ATTRIBUTE_ALWAYS_INLINE __forceinline
+#else
+#define ATTRIBUTE_ALWAYS_INLINE
+#endif
+
+// The following enum should be used only as a constructor argument to indicate
+// that the variable has static storage class, and that the constructor should
+// do nothing to its state.  It indicates to the reader that it is legal to
+// declare a static nistance of the class, provided the constructor is given
+// the base::LINKER_INITIALIZED argument.  Normally, it is unsafe to declare a
+// static variable that has a constructor or a destructor because invocation
+// order is undefined.  However, IF the type can be initialized by filling with
+// zeroes (which the loader does for static variables), AND the destructor also
+// does nothing to the storage, then a constructor declared as
+//       explicit MyClass(base::LinkerInitialized x) {}
+// and invoked as
+//       static MyClass my_variable_name(base::LINKER_INITIALIZED);
+namespace base {
+enum LinkerInitialized { LINKER_INITIALIZED };
+}
+
+#endif  // _BASICTYPES_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/commandlineflags.h b/trunk/3rdparty/gperftools-2-fit/src/base/commandlineflags.h
new file mode 100644
index 000000000..038a94a93
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/commandlineflags.h
@@ -0,0 +1,175 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// This file is a compatibility layer that defines Google's version of
+// command line flags that are used for configuration.
+//
+// We put flags into their own namespace.  It is purposefully
+// named in an opaque way that people should have trouble typing
+// directly.  The idea is that DEFINE puts the flag in the weird
+// namespace, and DECLARE imports the flag from there into the
+// current namespace.  The net result is to force people to use
+// DECLARE to get access to a flag, rather than saying
+//   extern bool FLAGS_logtostderr;
+// or some such instead.  We want this so we can put extra
+// functionality (like sanity-checking) in DECLARE if we want,
+// and make sure it is picked up everywhere.
+//
+// We also put the type of the variable in the namespace, so that
+// people can't DECLARE_int32 something that they DEFINE_bool'd
+// elsewhere.
+#ifndef BASE_COMMANDLINEFLAGS_H_
+#define BASE_COMMANDLINEFLAGS_H_
+
+#include 
+#include 
+#include                // for memchr
+#include                // for getenv
+#include "base/basictypes.h"
+
+#define DECLARE_VARIABLE(type, name)                                          \
+  namespace FLAG__namespace_do_not_use_directly_use_DECLARE_##type##_instead {  \
+  extern PERFTOOLS_DLL_DECL type FLAGS_##name;                                \
+  }                                                                           \
+  using FLAG__namespace_do_not_use_directly_use_DECLARE_##type##_instead::FLAGS_##name
+
+#define DEFINE_VARIABLE(type, name, value, meaning) \
+  namespace FLAG__namespace_do_not_use_directly_use_DECLARE_##type##_instead {  \
+  PERFTOOLS_DLL_DECL type FLAGS_##name(value);                                \
+  char FLAGS_no##name;                                                        \
+  }                                                                           \
+  using FLAG__namespace_do_not_use_directly_use_DECLARE_##type##_instead::FLAGS_##name
+
+// bool specialization
+#define DECLARE_bool(name) \
+  DECLARE_VARIABLE(bool, name)
+#define DEFINE_bool(name, value, meaning) \
+  DEFINE_VARIABLE(bool, name, value, meaning)
+
+// int32 specialization
+#define DECLARE_int32(name) \
+  DECLARE_VARIABLE(int32, name)
+#define DEFINE_int32(name, value, meaning) \
+  DEFINE_VARIABLE(int32, name, value, meaning)
+
+// int64 specialization
+#define DECLARE_int64(name) \
+  DECLARE_VARIABLE(int64, name)
+#define DEFINE_int64(name, value, meaning) \
+  DEFINE_VARIABLE(int64, name, value, meaning)
+
+#define DECLARE_uint64(name) \
+  DECLARE_VARIABLE(uint64, name)
+#define DEFINE_uint64(name, value, meaning) \
+  DEFINE_VARIABLE(uint64, name, value, meaning)
+
+// double specialization
+#define DECLARE_double(name) \
+  DECLARE_VARIABLE(double, name)
+#define DEFINE_double(name, value, meaning) \
+  DEFINE_VARIABLE(double, name, value, meaning)
+
+// Special case for string, because we have to specify the namespace
+// std::string, which doesn't play nicely with our FLAG__namespace hackery.
+#define DECLARE_string(name)                                          \
+  namespace FLAG__namespace_do_not_use_directly_use_DECLARE_string_instead {  \
+  extern std::string FLAGS_##name;                                                   \
+  }                                                                           \
+  using FLAG__namespace_do_not_use_directly_use_DECLARE_string_instead::FLAGS_##name
+#define DEFINE_string(name, value, meaning) \
+  namespace FLAG__namespace_do_not_use_directly_use_DECLARE_string_instead {  \
+  std::string FLAGS_##name(value);                                                   \
+  char FLAGS_no##name;                                                        \
+  }                                                                           \
+  using FLAG__namespace_do_not_use_directly_use_DECLARE_string_instead::FLAGS_##name
+
+// implemented in sysinfo.cc
+namespace tcmalloc {
+  namespace commandlineflags {
+
+    inline bool StringToBool(const char *value, bool def) {
+      if (!value) {
+        return def;
+      }
+      switch (value[0]) {
+      case 't':
+      case 'T':
+      case 'y':
+      case 'Y':
+      case '1':
+      case '\0':
+        return true;
+      }
+      return false;
+    }
+
+    inline int StringToInt(const char *value, int def) {
+      if (!value) {
+        return def;
+      }
+      return strtol(value, NULL, 10);
+    }
+
+    inline long long StringToLongLong(const char *value, long long def) {
+      if (!value) {
+        return def;
+      }
+      return strtoll(value, NULL, 10);
+    }
+
+    inline double StringToDouble(const char *value, double def) {
+      if (!value) {
+        return def;
+      }
+      return strtod(value, NULL);
+    }
+  }
+}
+
+// These macros (could be functions, but I don't want to bother with a .cc
+// file), make it easier to initialize flags from the environment.
+
+#define EnvToString(envname, dflt)   \
+  (!getenv(envname) ? (dflt) : getenv(envname))
+
+#define EnvToBool(envname, dflt)   \
+  tcmalloc::commandlineflags::StringToBool(getenv(envname), dflt)
+
+#define EnvToInt(envname, dflt)  \
+  tcmalloc::commandlineflags::StringToInt(getenv(envname), dflt)
+
+#define EnvToInt64(envname, dflt)  \
+  tcmalloc::commandlineflags::StringToLongLong(getenv(envname), dflt)
+
+#define EnvToDouble(envname, dflt)  \
+  tcmalloc::commandlineflags::StringToDouble(getenv(envname), dflt)
+
+#endif  // BASE_COMMANDLINEFLAGS_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/dynamic_annotations.c b/trunk/3rdparty/gperftools-2-fit/src/base/dynamic_annotations.c
new file mode 100644
index 000000000..9b966a7cc
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/dynamic_annotations.c
@@ -0,0 +1,64 @@
+// -*- Mode: c; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2008-2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Kostya Serebryany
+ */
+
+#ifdef __cplusplus
+# error "This file should be built as pure C to avoid name mangling"
+#endif
+
+#include "config.h"
+#include 
+#include 
+
+#include "base/dynamic_annotations.h"
+#include "getenv_safe.h" // for TCMallocGetenvSafe
+
+static int GetRunningOnValgrind(void) {
+#ifdef RUNNING_ON_VALGRIND
+  if (RUNNING_ON_VALGRIND) return 1;
+#endif
+  const char *running_on_valgrind_str = TCMallocGetenvSafe("RUNNING_ON_VALGRIND");
+  if (running_on_valgrind_str) {
+    return strcmp(running_on_valgrind_str, "0") != 0;
+  }
+  return 0;
+}
+
+/* See the comments in dynamic_annotations.h */
+int RunningOnValgrind(void) {
+  static volatile int running_on_valgrind = -1;
+  int local_running_on_valgrind = running_on_valgrind;
+  if (local_running_on_valgrind == -1)
+    running_on_valgrind = local_running_on_valgrind = GetRunningOnValgrind();
+  return local_running_on_valgrind;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/dynamic_annotations.h b/trunk/3rdparty/gperftools-2-fit/src/base/dynamic_annotations.h
new file mode 100644
index 000000000..af9445271
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/dynamic_annotations.h
@@ -0,0 +1,86 @@
+/* -*- Mode: c; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Kostya Serebryany
+ */
+
+/* This file defines dynamic annotations for use with dynamic analysis
+   tool such as valgrind, PIN, etc.
+
+   Dynamic annotation is a source code annotation that affects
+   the generated code (that is, the annotation is not a comment).
+   Each such annotation is attached to a particular
+   instruction and/or to a particular object (address) in the program.
+
+   The annotations that should be used by users are macros in all upper-case
+   (e.g., ANNOTATE_NEW_MEMORY).
+
+   Actual implementation of these macros may differ depending on the
+   dynamic analysis tool being used.
+
+   See http://code.google.com/p/data-race-test/  for more information.
+
+   This file supports the following dynamic analysis tools:
+   - None (DYNAMIC_ANNOTATIONS_ENABLED is not defined or zero).
+      Macros are defined empty.
+   - ThreadSanitizer, Helgrind, DRD (DYNAMIC_ANNOTATIONS_ENABLED is 1).
+      Macros are defined as calls to non-inlinable empty functions
+      that are intercepted by Valgrind. */
+
+#ifndef BASE_DYNAMIC_ANNOTATIONS_H_
+#define BASE_DYNAMIC_ANNOTATIONS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Return non-zero value if running under valgrind.
+
+  If "valgrind.h" is included into dynamic_annotations.c,
+  the regular valgrind mechanism will be used.
+  See http://valgrind.org/docs/manual/manual-core-adv.html about
+  RUNNING_ON_VALGRIND and other valgrind "client requests".
+  The file "valgrind.h" may be obtained by doing
+     svn co svn://svn.valgrind.org/valgrind/trunk/include
+
+  If for some reason you can't use "valgrind.h" or want to fake valgrind,
+  there are two ways to make this function return non-zero:
+    - Use environment variable: export RUNNING_ON_VALGRIND=1
+    - Make your tool intercept the function RunningOnValgrind() and
+      change its return value.
+ */
+int RunningOnValgrind(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* BASE_DYNAMIC_ANNOTATIONS_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/elf_mem_image.cc b/trunk/3rdparty/gperftools-2-fit/src/base/elf_mem_image.cc
new file mode 100644
index 000000000..d2ca1a5e1
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/elf_mem_image.cc
@@ -0,0 +1,434 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Paul Pluzhnikov
+//
+// Allow dynamic symbol lookup in an in-memory Elf image.
+//
+
+#include "base/elf_mem_image.h"
+
+#ifdef HAVE_ELF_MEM_IMAGE  // defined in elf_mem_image.h
+
+#include    // for size_t, ptrdiff_t
+#include "base/logging.h"
+
+// From binutils/include/elf/common.h (this doesn't appear to be documented
+// anywhere else).
+//
+//   /* This flag appears in a Versym structure.  It means that the symbol
+//      is hidden, and is only visible with an explicit version number.
+//      This is a GNU extension.  */
+//   #define VERSYM_HIDDEN           0x8000
+//
+//   /* This is the mask for the rest of the Versym information.  */
+//   #define VERSYM_VERSION          0x7fff
+
+#define VERSYM_VERSION 0x7fff
+
+namespace base {
+
+namespace {
+template  class ElfClass {
+ public:
+  static const int kElfClass = -1;
+  static int ElfBind(const ElfW(Sym) *) {
+    CHECK(false); // << "Unexpected word size";
+    return 0;
+  }
+  static int ElfType(const ElfW(Sym) *) {
+    CHECK(false); // << "Unexpected word size";
+    return 0;
+  }
+};
+
+template <> class ElfClass<32> {
+ public:
+  static const int kElfClass = ELFCLASS32;
+  static int ElfBind(const ElfW(Sym) *symbol) {
+    return ELF32_ST_BIND(symbol->st_info);
+  }
+  static int ElfType(const ElfW(Sym) *symbol) {
+    return ELF32_ST_TYPE(symbol->st_info);
+  }
+};
+
+template <> class ElfClass<64> {
+ public:
+  static const int kElfClass = ELFCLASS64;
+  static int ElfBind(const ElfW(Sym) *symbol) {
+    return ELF64_ST_BIND(symbol->st_info);
+  }
+  static int ElfType(const ElfW(Sym) *symbol) {
+    return ELF64_ST_TYPE(symbol->st_info);
+  }
+};
+
+typedef ElfClass<__WORDSIZE> CurrentElfClass;
+
+// Extract an element from one of the ELF tables, cast it to desired type.
+// This is just a simple arithmetic and a glorified cast.
+// Callers are responsible for bounds checking.
+template 
+const T* GetTableElement(const ElfW(Ehdr) *ehdr,
+                         ElfW(Off) table_offset,
+                         ElfW(Word) element_size,
+                         size_t index) {
+  return reinterpret_cast(reinterpret_cast(ehdr)
+                                    + table_offset
+                                    + index * element_size);
+}
+}  // namespace
+
+const void *const ElfMemImage::kInvalidBase =
+    reinterpret_cast(~0L);
+
+ElfMemImage::ElfMemImage(const void *base) {
+  CHECK(base != kInvalidBase);
+  Init(base);
+}
+
+int ElfMemImage::GetNumSymbols() const {
+  if (!hash_) {
+    return 0;
+  }
+  // See http://www.caldera.com/developers/gabi/latest/ch5.dynamic.html#hash
+  return hash_[1];
+}
+
+const ElfW(Sym) *ElfMemImage::GetDynsym(int index) const {
+  CHECK_LT(index, GetNumSymbols());
+  return dynsym_ + index;
+}
+
+const ElfW(Versym) *ElfMemImage::GetVersym(int index) const {
+  CHECK_LT(index, GetNumSymbols());
+  return versym_ + index;
+}
+
+const ElfW(Phdr) *ElfMemImage::GetPhdr(int index) const {
+  CHECK_LT(index, ehdr_->e_phnum);
+  return GetTableElement(ehdr_,
+                                     ehdr_->e_phoff,
+                                     ehdr_->e_phentsize,
+                                     index);
+}
+
+const char *ElfMemImage::GetDynstr(ElfW(Word) offset) const {
+  CHECK_LT(offset, strsize_);
+  return dynstr_ + offset;
+}
+
+const void *ElfMemImage::GetSymAddr(const ElfW(Sym) *sym) const {
+  if (sym->st_shndx == SHN_UNDEF || sym->st_shndx >= SHN_LORESERVE) {
+    // Symbol corresponds to "special" (e.g. SHN_ABS) section.
+    return reinterpret_cast(sym->st_value);
+  }
+  CHECK_LT(link_base_, sym->st_value);
+  return GetTableElement(ehdr_, 0, 1, sym->st_value) - link_base_;
+}
+
+const ElfW(Verdef) *ElfMemImage::GetVerdef(int index) const {
+  CHECK_LE(index, verdefnum_);
+  const ElfW(Verdef) *version_definition = verdef_;
+  while (version_definition->vd_ndx < index && version_definition->vd_next) {
+    const char *const version_definition_as_char =
+        reinterpret_cast(version_definition);
+    version_definition =
+        reinterpret_cast(version_definition_as_char +
+                                               version_definition->vd_next);
+  }
+  return version_definition->vd_ndx == index ? version_definition : NULL;
+}
+
+const ElfW(Verdaux) *ElfMemImage::GetVerdefAux(
+    const ElfW(Verdef) *verdef) const {
+  return reinterpret_cast(verdef+1);
+}
+
+const char *ElfMemImage::GetVerstr(ElfW(Word) offset) const {
+  CHECK_LT(offset, strsize_);
+  return dynstr_ + offset;
+}
+
+void ElfMemImage::Init(const void *base) {
+  ehdr_      = NULL;
+  dynsym_    = NULL;
+  dynstr_    = NULL;
+  versym_    = NULL;
+  verdef_    = NULL;
+  hash_      = NULL;
+  strsize_   = 0;
+  verdefnum_ = 0;
+  link_base_ = ~0L;  // Sentinel: PT_LOAD .p_vaddr can't possibly be this.
+  if (!base) {
+    return;
+  }
+  const intptr_t base_as_uintptr_t = reinterpret_cast(base);
+  // Fake VDSO has low bit set.
+  const bool fake_vdso = ((base_as_uintptr_t & 1) != 0);
+  base = reinterpret_cast(base_as_uintptr_t & ~1);
+  const char *const base_as_char = reinterpret_cast(base);
+  if (base_as_char[EI_MAG0] != ELFMAG0 || base_as_char[EI_MAG1] != ELFMAG1 ||
+      base_as_char[EI_MAG2] != ELFMAG2 || base_as_char[EI_MAG3] != ELFMAG3) {
+    RAW_DCHECK(false, "no ELF magic"); // at %p", base);
+    return;
+  }
+  int elf_class = base_as_char[EI_CLASS];
+  if (elf_class != CurrentElfClass::kElfClass) {
+    DCHECK_EQ(elf_class, CurrentElfClass::kElfClass);
+    return;
+  }
+  switch (base_as_char[EI_DATA]) {
+    case ELFDATA2LSB: {
+      if (__LITTLE_ENDIAN != __BYTE_ORDER) {
+        DCHECK_EQ(__LITTLE_ENDIAN, __BYTE_ORDER); // << ": wrong byte order";
+        return;
+      }
+      break;
+    }
+    case ELFDATA2MSB: {
+      if (__BIG_ENDIAN != __BYTE_ORDER) {
+        DCHECK_EQ(__BIG_ENDIAN, __BYTE_ORDER); // << ": wrong byte order";
+        return;
+      }
+      break;
+    }
+    default: {
+      RAW_DCHECK(false, "unexpected data encoding"); // << base_as_char[EI_DATA];
+      return;
+    }
+  }
+
+  ehdr_ = reinterpret_cast(base);
+  const ElfW(Phdr) *dynamic_program_header = NULL;
+  for (int i = 0; i < ehdr_->e_phnum; ++i) {
+    const ElfW(Phdr) *const program_header = GetPhdr(i);
+    switch (program_header->p_type) {
+      case PT_LOAD:
+        if (link_base_ == ~0L) {
+          link_base_ = program_header->p_vaddr;
+        }
+        break;
+      case PT_DYNAMIC:
+        dynamic_program_header = program_header;
+        break;
+    }
+  }
+  if (link_base_ == ~0L || !dynamic_program_header) {
+    RAW_DCHECK(~0L != link_base_, "no PT_LOADs in VDSO");
+    RAW_DCHECK(dynamic_program_header, "no PT_DYNAMIC in VDSO");
+    // Mark this image as not present. Can not recur infinitely.
+    Init(0);
+    return;
+  }
+  ptrdiff_t relocation =
+      base_as_char - reinterpret_cast(link_base_);
+  ElfW(Dyn) *dynamic_entry =
+      reinterpret_cast(dynamic_program_header->p_vaddr +
+                                    relocation);
+  for (; dynamic_entry->d_tag != DT_NULL; ++dynamic_entry) {
+    ElfW(Xword) value = dynamic_entry->d_un.d_val;
+    if (fake_vdso) {
+      // A complication: in the real VDSO, dynamic entries are not relocated
+      // (it wasn't loaded by a dynamic loader). But when testing with a
+      // "fake" dlopen()ed vdso library, the loader relocates some (but
+      // not all!) of them before we get here.
+      if (dynamic_entry->d_tag == DT_VERDEF) {
+        // The only dynamic entry (of the ones we care about) libc-2.3.6
+        // loader doesn't relocate.
+        value += relocation;
+      }
+    } else {
+      // Real VDSO. Everything needs to be relocated.
+      value += relocation;
+    }
+    switch (dynamic_entry->d_tag) {
+      case DT_HASH:
+        hash_ = reinterpret_cast(value);
+        break;
+      case DT_SYMTAB:
+        dynsym_ = reinterpret_cast(value);
+        break;
+      case DT_STRTAB:
+        dynstr_ = reinterpret_cast(value);
+        break;
+      case DT_VERSYM:
+        versym_ = reinterpret_cast(value);
+        break;
+      case DT_VERDEF:
+        verdef_ = reinterpret_cast(value);
+        break;
+      case DT_VERDEFNUM:
+        verdefnum_ = dynamic_entry->d_un.d_val;
+        break;
+      case DT_STRSZ:
+        strsize_ = dynamic_entry->d_un.d_val;
+        break;
+      default:
+        // Unrecognized entries explicitly ignored.
+        break;
+    }
+  }
+  if (!hash_ || !dynsym_ || !dynstr_ || !versym_ ||
+      !verdef_ || !verdefnum_ || !strsize_) {
+    RAW_DCHECK(hash_, "invalid VDSO (no DT_HASH)");
+    RAW_DCHECK(dynsym_, "invalid VDSO (no DT_SYMTAB)");
+    RAW_DCHECK(dynstr_, "invalid VDSO (no DT_STRTAB)");
+    RAW_DCHECK(versym_, "invalid VDSO (no DT_VERSYM)");
+    RAW_DCHECK(verdef_, "invalid VDSO (no DT_VERDEF)");
+    RAW_DCHECK(verdefnum_, "invalid VDSO (no DT_VERDEFNUM)");
+    RAW_DCHECK(strsize_, "invalid VDSO (no DT_STRSZ)");
+    // Mark this image as not present. Can not recur infinitely.
+    Init(0);
+    return;
+  }
+}
+
+bool ElfMemImage::LookupSymbol(const char *name,
+                               const char *version,
+                               int type,
+                               SymbolInfo *info) const {
+  for (SymbolIterator it = begin(); it != end(); ++it) {
+    if (strcmp(it->name, name) == 0 && strcmp(it->version, version) == 0 &&
+        CurrentElfClass::ElfType(it->symbol) == type) {
+      if (info) {
+        *info = *it;
+      }
+      return true;
+    }
+  }
+  return false;
+}
+
+bool ElfMemImage::LookupSymbolByAddress(const void *address,
+                                        SymbolInfo *info_out) const {
+  for (SymbolIterator it = begin(); it != end(); ++it) {
+    const char *const symbol_start =
+        reinterpret_cast(it->address);
+    const char *const symbol_end = symbol_start + it->symbol->st_size;
+    if (symbol_start <= address && address < symbol_end) {
+      if (info_out) {
+        // Client wants to know details for that symbol (the usual case).
+        if (CurrentElfClass::ElfBind(it->symbol) == STB_GLOBAL) {
+          // Strong symbol; just return it.
+          *info_out = *it;
+          return true;
+        } else {
+          // Weak or local. Record it, but keep looking for a strong one.
+          *info_out = *it;
+        }
+      } else {
+        // Client only cares if there is an overlapping symbol.
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+ElfMemImage::SymbolIterator::SymbolIterator(const void *const image, int index)
+    : index_(index), image_(image) {
+}
+
+const ElfMemImage::SymbolInfo *ElfMemImage::SymbolIterator::operator->() const {
+  return &info_;
+}
+
+const ElfMemImage::SymbolInfo& ElfMemImage::SymbolIterator::operator*() const {
+  return info_;
+}
+
+bool ElfMemImage::SymbolIterator::operator==(const SymbolIterator &rhs) const {
+  return this->image_ == rhs.image_ && this->index_ == rhs.index_;
+}
+
+bool ElfMemImage::SymbolIterator::operator!=(const SymbolIterator &rhs) const {
+  return !(*this == rhs);
+}
+
+ElfMemImage::SymbolIterator &ElfMemImage::SymbolIterator::operator++() {
+  this->Update(1);
+  return *this;
+}
+
+ElfMemImage::SymbolIterator ElfMemImage::begin() const {
+  SymbolIterator it(this, 0);
+  it.Update(0);
+  return it;
+}
+
+ElfMemImage::SymbolIterator ElfMemImage::end() const {
+  return SymbolIterator(this, GetNumSymbols());
+}
+
+void ElfMemImage::SymbolIterator::Update(int increment) {
+  const ElfMemImage *image = reinterpret_cast(image_);
+  CHECK(image->IsPresent() || increment == 0);
+  if (!image->IsPresent()) {
+    return;
+  }
+  index_ += increment;
+  if (index_ >= image->GetNumSymbols()) {
+    index_ = image->GetNumSymbols();
+    return;
+  }
+  const ElfW(Sym)    *symbol = image->GetDynsym(index_);
+  const ElfW(Versym) *version_symbol = image->GetVersym(index_);
+  CHECK(symbol && version_symbol);
+  const char *const symbol_name = image->GetDynstr(symbol->st_name);
+  const ElfW(Versym) version_index = version_symbol[0] & VERSYM_VERSION;
+  const ElfW(Verdef) *version_definition = NULL;
+  const char *version_name = "";
+  if (symbol->st_shndx == SHN_UNDEF) {
+    // Undefined symbols reference DT_VERNEED, not DT_VERDEF, and
+    // version_index could well be greater than verdefnum_, so calling
+    // GetVerdef(version_index) may trigger assertion.
+  } else {
+    version_definition = image->GetVerdef(version_index);
+  }
+  if (version_definition) {
+    // I am expecting 1 or 2 auxiliary entries: 1 for the version itself,
+    // optional 2nd if the version has a parent.
+    CHECK_LE(1, version_definition->vd_cnt);
+    CHECK_LE(version_definition->vd_cnt, 2);
+    const ElfW(Verdaux) *version_aux = image->GetVerdefAux(version_definition);
+    version_name = image->GetVerstr(version_aux->vda_name);
+  }
+  info_.name    = symbol_name;
+  info_.version = version_name;
+  info_.address = image->GetSymAddr(symbol);
+  info_.symbol  = symbol;
+}
+
+}  // namespace base
+
+#endif  // HAVE_ELF_MEM_IMAGE
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/elf_mem_image.h b/trunk/3rdparty/gperftools-2-fit/src/base/elf_mem_image.h
new file mode 100644
index 000000000..5fb00fffb
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/elf_mem_image.h
@@ -0,0 +1,135 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Paul Pluzhnikov
+//
+// Allow dynamic symbol lookup for in-memory Elf images.
+
+#ifndef BASE_ELF_MEM_IMAGE_H_
+#define BASE_ELF_MEM_IMAGE_H_
+
+#include 
+#ifdef HAVE_FEATURES_H
+#include    // for __GLIBC__
+#endif
+
+// Maybe one day we can rewrite this file not to require the elf
+// symbol extensions in glibc, but for right now we need them.
+#if defined(__ELF__) && defined(__GLIBC__) && !defined(__native_client__)
+
+#define HAVE_ELF_MEM_IMAGE 1
+
+#include 
+#include   // for ElfW
+
+namespace base {
+
+// An in-memory ELF image (may not exist on disk).
+class ElfMemImage {
+ public:
+  // Sentinel: there could never be an elf image at this address.
+  static const void *const kInvalidBase;
+
+  // Information about a single vdso symbol.
+  // All pointers are into .dynsym, .dynstr, or .text of the VDSO.
+  // Do not free() them or modify through them.
+  struct SymbolInfo {
+    const char      *name;      // E.g. "__vdso_getcpu"
+    const char      *version;   // E.g. "LINUX_2.6", could be ""
+                                // for unversioned symbol.
+    const void      *address;   // Relocated symbol address.
+    const ElfW(Sym) *symbol;    // Symbol in the dynamic symbol table.
+  };
+
+  // Supports iteration over all dynamic symbols.
+  class SymbolIterator {
+   public:
+    friend class ElfMemImage;
+    const SymbolInfo *operator->() const;
+    const SymbolInfo &operator*() const;
+    SymbolIterator& operator++();
+    bool operator!=(const SymbolIterator &rhs) const;
+    bool operator==(const SymbolIterator &rhs) const;
+   private:
+    SymbolIterator(const void *const image, int index);
+    void Update(int incr);
+    SymbolInfo info_;
+    int index_;
+    const void *const image_;
+  };
+
+
+  explicit ElfMemImage(const void *base);
+  void                 Init(const void *base);
+  bool                 IsPresent() const { return ehdr_ != NULL; }
+  const ElfW(Phdr)*    GetPhdr(int index) const;
+  const ElfW(Sym)*     GetDynsym(int index) const;
+  const ElfW(Versym)*  GetVersym(int index) const;
+  const ElfW(Verdef)*  GetVerdef(int index) const;
+  const ElfW(Verdaux)* GetVerdefAux(const ElfW(Verdef) *verdef) const;
+  const char*          GetDynstr(ElfW(Word) offset) const;
+  const void*          GetSymAddr(const ElfW(Sym) *sym) const;
+  const char*          GetVerstr(ElfW(Word) offset) const;
+  int                  GetNumSymbols() const;
+
+  SymbolIterator begin() const;
+  SymbolIterator end() const;
+
+  // Look up versioned dynamic symbol in the image.
+  // Returns false if image is not present, or doesn't contain given
+  // symbol/version/type combination.
+  // If info_out != NULL, additional details are filled in.
+  bool LookupSymbol(const char *name, const char *version,
+                    int symbol_type, SymbolInfo *info_out) const;
+
+  // Find info about symbol (if any) which overlaps given address.
+  // Returns true if symbol was found; false if image isn't present
+  // or doesn't have a symbol overlapping given address.
+  // If info_out != NULL, additional details are filled in.
+  bool LookupSymbolByAddress(const void *address, SymbolInfo *info_out) const;
+
+ private:
+  const ElfW(Ehdr) *ehdr_;
+  const ElfW(Sym) *dynsym_;
+  const ElfW(Versym) *versym_;
+  const ElfW(Verdef) *verdef_;
+  const ElfW(Word) *hash_;
+  const char *dynstr_;
+  size_t strsize_;
+  size_t verdefnum_;
+  ElfW(Addr) link_base_;     // Link-time base (p_vaddr of first PT_LOAD).
+};
+
+}  // namespace base
+
+#endif  // __ELF__ and __GLIBC__ and !__native_client__
+
+#endif  // BASE_ELF_MEM_IMAGE_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/elfcore.h b/trunk/3rdparty/gperftools-2-fit/src/base/elfcore.h
new file mode 100644
index 000000000..11c09b4ff
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/elfcore.h
@@ -0,0 +1,135 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2005-2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Markus Gutschke, Carl Crous
+ */
+
+#ifndef _ELFCORE_H
+#define _ELFCORE_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* We currently only support x86-32, x86-64, ARM, MIPS, PPC on Linux.
+ * Porting to other related platforms should not be difficult.
+ */
+#if (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \
+     defined(__mips__) || defined(__PPC__)) && defined(__linux)
+
+#include "config.h"
+
+#include 
+#include 
+#include 
+
+
+/* Define the DUMPER symbol to make sure that there is exactly one
+ * core dumper built into the library.
+ */
+#define DUMPER "ELF"
+
+/* By the time that we get a chance to read CPU registers in the
+ * calling thread, they are already in a not particularly useful
+ * state. Besides, there will be multiple frames on the stack that are
+ * just making the core file confusing. To fix this problem, we take a
+ * snapshot of the frame pointer, stack pointer, and instruction
+ * pointer at an earlier time, and then insert these values into the
+ * core file.
+ */
+
+#if defined(__i386__) || defined(__x86_64__)
+  typedef struct i386_regs {    /* Normal (non-FPU) CPU registers            */
+  #ifdef __x86_64__
+    #define BP rbp
+    #define SP rsp
+    #define IP rip
+    uint64_t  r15,r14,r13,r12,rbp,rbx,r11,r10;
+    uint64_t  r9,r8,rax,rcx,rdx,rsi,rdi,orig_rax;
+    uint64_t  rip,cs,eflags;
+    uint64_t  rsp,ss;
+    uint64_t  fs_base, gs_base;
+    uint64_t  ds,es,fs,gs;
+  #else
+    #define BP ebp
+    #define SP esp
+    #define IP eip
+    uint32_t  ebx, ecx, edx, esi, edi, ebp, eax;
+    uint16_t  ds, __ds, es, __es;
+    uint16_t  fs, __fs, gs, __gs;
+    uint32_t  orig_eax, eip;
+    uint16_t  cs, __cs;
+    uint32_t  eflags, esp;
+    uint16_t  ss, __ss;
+  #endif
+  } i386_regs;
+#elif defined(__arm__)
+  typedef struct arm_regs {     /* General purpose registers                 */
+    #define BP uregs[11]        /* Frame pointer                             */
+    #define SP uregs[13]        /* Stack pointer                             */
+    #define IP uregs[15]        /* Program counter                           */
+    #define LR uregs[14]        /* Link register                             */
+    long uregs[18];
+  } arm_regs;
+#elif defined(__mips__)
+  typedef struct mips_regs {
+    unsigned long pad[6];       /* Unused padding to match kernel structures */
+    unsigned long uregs[32];    /* General purpose registers.                */
+    unsigned long hi;           /* Used for multiplication and division.     */
+    unsigned long lo;
+    unsigned long cp0_epc;      /* Program counter.                          */
+    unsigned long cp0_badvaddr;
+    unsigned long cp0_status;
+    unsigned long cp0_cause;
+    unsigned long unused;
+  } mips_regs;
+#elif defined (__PPC__)
+  typedef struct ppc_regs {
+    #define SP uregs[1]         /* Stack pointer                             */
+    #define IP rip              /* Program counter                           */
+    #define LR lr               /* Link register                             */
+    unsigned long uregs[32];	/* General Purpose Registers - r0-r31.       */
+    double        fpr[32];	/* Floating-Point Registers - f0-f31.        */
+    unsigned long rip;		/* Program counter.                          */
+    unsigned long msr;
+    unsigned long ccr;
+    unsigned long lr;
+    unsigned long ctr;
+    unsigned long xeq;
+    unsigned long mq;
+  } ppc_regs;
+#endif
+
+#endif  // __linux and various arches
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _ELFCORE_H */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/googleinit.h b/trunk/3rdparty/gperftools-2-fit/src/base/googleinit.h
new file mode 100644
index 000000000..a29042772
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/googleinit.h
@@ -0,0 +1,74 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Jacob Hoffman-Andrews
+
+#ifndef _GOOGLEINIT_H
+#define _GOOGLEINIT_H
+
+#include "base/logging.h"
+
+class GoogleInitializer {
+ public:
+  typedef void (*VoidFunction)(void);
+  GoogleInitializer(const char* name, VoidFunction ctor, VoidFunction dtor)
+      : name_(name), destructor_(dtor) {
+    RAW_VLOG(10, " constructing: %s\n", name_);
+    if (ctor)
+      ctor();
+  }
+  ~GoogleInitializer() {
+    RAW_VLOG(10, " destroying: %s\n", name_);
+    if (destructor_)
+      destructor_();
+  }
+
+ private:
+  const char* const name_;
+  const VoidFunction destructor_;
+};
+
+#define REGISTER_MODULE_INITIALIZER(name, body)                 \
+  namespace {                                                   \
+    static void google_init_module_##name () { body; }          \
+    GoogleInitializer google_initializer_module_##name(#name,   \
+            google_init_module_##name, NULL);                   \
+  }
+
+#define REGISTER_MODULE_DESTRUCTOR(name, body)                  \
+  namespace {                                                   \
+    static void google_destruct_module_##name () { body; }      \
+    GoogleInitializer google_destructor_module_##name(#name,    \
+            NULL, google_destruct_module_##name);               \
+  }
+
+
+#endif /* _GOOGLEINIT_H */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/linux_syscall_support.h b/trunk/3rdparty/gperftools-2-fit/src/base/linux_syscall_support.h
new file mode 100644
index 000000000..d6899b892
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/linux_syscall_support.h
@@ -0,0 +1,3017 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2005-2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Markus Gutschke
+ */
+
+/* This file includes Linux-specific support functions common to the
+ * coredumper and the thread lister; primarily, this is a collection
+ * of direct system calls, and a couple of symbols missing from
+ * standard header files.
+ * There are a few options that the including file can set to control
+ * the behavior of this file:
+ *
+ * SYS_CPLUSPLUS:
+ *   The entire header file will normally be wrapped in 'extern "C" { }",
+ *   making it suitable for compilation as both C and C++ source. If you
+ *   do not want to do this, you can set the SYS_CPLUSPLUS macro to inhibit
+ *   the wrapping. N.B. doing so will suppress inclusion of all prerequisite
+ *   system header files, too. It is the caller's responsibility to provide
+ *   the necessary definitions.
+ *
+ * SYS_ERRNO:
+ *   All system calls will update "errno" unless overriden by setting the
+ *   SYS_ERRNO macro prior to including this file. SYS_ERRNO should be
+ *   an l-value.
+ *
+ * SYS_INLINE:
+ *   New symbols will be defined "static inline", unless overridden by
+ *   the SYS_INLINE macro.
+ *
+ * SYS_LINUX_SYSCALL_SUPPORT_H
+ *   This macro is used to avoid multiple inclusions of this header file.
+ *   If you need to include this file more than once, make sure to
+ *   unset SYS_LINUX_SYSCALL_SUPPORT_H before each inclusion.
+ *
+ * SYS_PREFIX:
+ *   New system calls will have a prefix of "sys_" unless overridden by
+ *   the SYS_PREFIX macro. Valid values for this macro are [0..9] which
+ *   results in prefixes "sys[0..9]_". It is also possible to set this
+ *   macro to -1, which avoids all prefixes.
+ *
+ * This file defines a few internal symbols that all start with "LSS_".
+ * Do not access these symbols from outside this file. They are not part
+ * of the supported API.
+ *
+ * NOTE: This is a stripped down version of the official opensource
+ * version of linux_syscall_support.h, which lives at
+ *    http://code.google.com/p/linux-syscall-support/
+ * It includes only the syscalls that are used in perftools, plus a
+ * few extra.  Here's the breakdown:
+ * 1) Perftools uses these: grep -rho 'sys_[a-z0-9_A-Z]* *(' src | sort -u
+ *      sys__exit(
+ *      sys_clone(
+ *      sys_close(
+ *      sys_fcntl(
+ *      sys_fstat(
+ *      sys_futex(
+ *      sys_getcpu(
+ *      sys_getdents64(
+ *      sys_getppid(
+ *      sys_gettid(
+ *      sys_lseek(
+ *      sys_mmap(
+ *      sys_mremap(
+ *      sys_munmap(
+ *      sys_open(
+ *      sys_pipe(
+ *      sys_prctl(
+ *      sys_ptrace(
+ *      sys_ptrace_detach(
+ *      sys_read(
+ *      sys_sched_yield(
+ *      sys_sigaction(
+ *      sys_sigaltstack(
+ *      sys_sigdelset(
+ *      sys_sigfillset(
+ *      sys_sigprocmask(
+ *      sys_socket(
+ *      sys_stat(
+ *      sys_waitpid(
+ * 2) These are used as subroutines of the above:
+ *      sys_getpid       -- gettid
+ *      sys_kill         -- ptrace_detach
+ *      sys_restore      -- sigaction
+ *      sys_restore_rt   -- sigaction
+ *      sys_socketcall   -- socket
+ *      sys_wait4        -- waitpid
+ * 3) I left these in even though they're not used.  They either
+ * complement the above (write vs read) or are variants (rt_sigaction):
+ *      sys_fstat64
+ *      sys_llseek
+ *      sys_mmap2
+ *      sys_openat
+ *      sys_getdents
+ *      sys_rt_sigaction
+ *      sys_rt_sigprocmask
+ *      sys_sigaddset
+ *      sys_sigemptyset
+ *      sys_stat64
+ *      sys_write
+ */
+#ifndef SYS_LINUX_SYSCALL_SUPPORT_H
+#define SYS_LINUX_SYSCALL_SUPPORT_H
+
+/* We currently only support x86-32, x86-64, ARM, MIPS, PPC/PPC64, Aarch64,
+ * s390, s390x, and riscv64 on Linux.
+ * Porting to other related platforms should not be difficult.
+ */
+#if (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \
+     defined(__mips__) || defined(__mips64) || defined(__mips64el__) || defined(__PPC__) || \
+     defined(__aarch64__) || defined(__s390__) || defined(__riscv)) \
+  && (defined(__linux))
+
+#ifndef SYS_CPLUSPLUS
+#ifdef __cplusplus
+/* Some system header files in older versions of gcc neglect to properly
+ * handle being included from C++. As it appears to be harmless to have
+ * multiple nested 'extern "C"' blocks, just add another one here.
+ */
+extern "C" {
+#endif
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#ifdef __mips__
+/* Include definitions of the ABI currently in use.                          */
+#include 
+#endif
+
+#endif
+
+/* As glibc often provides subtly incompatible data structures (and implicit
+ * wrapper functions that convert them), we provide our own kernel data
+ * structures for use by the system calls.
+ * These structures have been developed by using Linux 2.6.23 headers for
+ * reference. Note though, we do not care about exact API compatibility
+ * with the kernel, and in fact the kernel often does not have a single
+ * API that works across architectures. Instead, we try to mimic the glibc
+ * API where reasonable, and only guarantee ABI compatibility with the
+ * kernel headers.
+ * Most notably, here are a few changes that were made to the structures
+ * defined by kernel headers:
+ *
+ * - we only define structures, but not symbolic names for kernel data
+ *   types. For the latter, we directly use the native C datatype
+ *   (i.e. "unsigned" instead of "mode_t").
+ * - in a few cases, it is possible to define identical structures for
+ *   both 32bit (e.g. i386) and 64bit (e.g. x86-64) platforms by
+ *   standardizing on the 64bit version of the data types. In particular,
+ *   this means that we use "unsigned" where the 32bit headers say
+ *   "unsigned long".
+ * - overall, we try to minimize the number of cases where we need to
+ *   conditionally define different structures.
+ * - the "struct kernel_sigaction" class of structures have been
+ *   modified to more closely mimic glibc's API by introducing an
+ *   anonymous union for the function pointer.
+ * - a small number of field names had to have an underscore appended to
+ *   them, because glibc defines a global macro by the same name.
+ */
+
+/* include/linux/dirent.h                                                    */
+struct kernel_dirent64 {
+  unsigned long long d_ino;
+  long long          d_off;
+  unsigned short     d_reclen;
+  unsigned char      d_type;
+  char               d_name[256];
+};
+
+/* include/linux/dirent.h                                                    */
+struct kernel_dirent {
+  long               d_ino;
+  long               d_off;
+  unsigned short     d_reclen;
+  char               d_name[256];
+};
+
+/* include/linux/time.h                                                      */
+struct kernel_timespec {
+  long               tv_sec;
+  long               tv_nsec;
+};
+
+/* include/linux/time.h                                                      */
+struct kernel_timeval {
+  long               tv_sec;
+  long               tv_usec;
+};
+
+/* include/linux/resource.h                                                  */
+struct kernel_rusage {
+  struct kernel_timeval ru_utime;
+  struct kernel_timeval ru_stime;
+  long               ru_maxrss;
+  long               ru_ixrss;
+  long               ru_idrss;
+  long               ru_isrss;
+  long               ru_minflt;
+  long               ru_majflt;
+  long               ru_nswap;
+  long               ru_inblock;
+  long               ru_oublock;
+  long               ru_msgsnd;
+  long               ru_msgrcv;
+  long               ru_nsignals;
+  long               ru_nvcsw;
+  long               ru_nivcsw;
+};
+
+#if defined(__i386__) || defined(__arm__) \
+  || defined(__PPC__) || (defined(__s390__) && !defined(__s390x__))
+
+/* include/asm-{arm,i386,mips,ppc}/signal.h                                  */
+struct kernel_old_sigaction {
+  union {
+    void             (*sa_handler_)(int);
+    void             (*sa_sigaction_)(int, siginfo_t *, void *);
+  };
+  unsigned long      sa_mask;
+  unsigned long      sa_flags;
+  void               (*sa_restorer)(void);
+} __attribute__((packed,aligned(4)));
+#elif (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32)
+  #define kernel_old_sigaction kernel_sigaction
+#elif defined(__aarch64__)
+  // No kernel_old_sigaction defined for arm64.
+#endif
+
+/* Some kernel functions (e.g. sigaction() in 2.6.23) require that the
+ * exactly match the size of the signal set, even though the API was
+ * intended to be extensible. We define our own KERNEL_NSIG to deal with
+ * this.
+ * Please note that glibc provides signals [1.._NSIG-1], whereas the
+ * kernel (and this header) provides the range [1..KERNEL_NSIG]. The
+ * actual number of signals is obviously the same, but the constants
+ * differ by one.
+ */
+#ifdef __mips__
+#define KERNEL_NSIG 128
+#else
+#define KERNEL_NSIG  64
+#endif
+
+/* include/asm-{arm,i386,mips,x86_64}/signal.h                               */
+struct kernel_sigset_t {
+  unsigned long sig[(KERNEL_NSIG + 8*sizeof(unsigned long) - 1)/
+                    (8*sizeof(unsigned long))];
+};
+
+/* include/asm-{arm,generic,i386,mips,x86_64,ppc}/signal.h                   */
+struct kernel_sigaction {
+#ifdef __mips__
+  unsigned long      sa_flags;
+  union {
+    void             (*sa_handler_)(int);
+    void             (*sa_sigaction_)(int, siginfo_t *, void *);
+  };
+  struct kernel_sigset_t sa_mask;
+#else
+  union {
+    void             (*sa_handler_)(int);
+    void             (*sa_sigaction_)(int, siginfo_t *, void *);
+  };
+  unsigned long      sa_flags;
+  void               (*sa_restorer)(void);
+  struct kernel_sigset_t sa_mask;
+#endif
+};
+
+/* include/asm-{arm,i386,mips,ppc,s390}/stat.h                               */
+#ifdef __mips__
+#if (_MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32)
+struct kernel_stat {
+#else
+struct kernel_stat64 {
+#endif
+  unsigned           st_dev;
+  unsigned           __pad0[3];
+  unsigned long long st_ino;
+  unsigned           st_mode;
+  unsigned           st_nlink;
+  unsigned           st_uid;
+  unsigned           st_gid;
+  unsigned           st_rdev;
+  unsigned           __pad1[3];
+  long long          st_size;
+  unsigned           st_atime_;
+  unsigned           st_atime_nsec_;
+  unsigned           st_mtime_;
+  unsigned           st_mtime_nsec_;
+  unsigned           st_ctime_;
+  unsigned           st_ctime_nsec_;
+  unsigned           st_blksize;
+  unsigned           __pad2;
+  unsigned long long st_blocks;
+};
+#elif defined __PPC__
+struct kernel_stat64 {
+  unsigned long long st_dev;
+  unsigned long long st_ino;
+  unsigned           st_nlink;
+  unsigned           st_mode;
+  unsigned           st_uid;
+  unsigned           st_gid;
+  int                __pad2;
+  unsigned long long st_rdev;
+  long long          st_size;
+  long long          st_blksize;
+  long long          st_blocks;
+  kernel_timespec    st_atim;
+  kernel_timespec    st_mtim;
+  kernel_timespec    st_ctim;
+  unsigned long      __unused4;
+  unsigned long      __unused5;
+  unsigned long      __unused6;
+};
+#else
+struct kernel_stat64 {
+  unsigned long long st_dev;
+  unsigned char      __pad0[4];
+  unsigned           __st_ino;
+  unsigned           st_mode;
+  unsigned           st_nlink;
+  unsigned           st_uid;
+  unsigned           st_gid;
+  unsigned long long st_rdev;
+  unsigned char      __pad3[4];
+  long long          st_size;
+  unsigned           st_blksize;
+  unsigned long long st_blocks;
+  unsigned           st_atime_;
+  unsigned           st_atime_nsec_;
+  unsigned           st_mtime_;
+  unsigned           st_mtime_nsec_;
+  unsigned           st_ctime_;
+  unsigned           st_ctime_nsec_;
+  unsigned long long st_ino;
+};
+#endif
+
+/* include/asm-{arm,generic,i386,mips,x86_64,ppc,s390}/stat.h                     */
+#if defined(__i386__) || defined(__arm__)
+struct kernel_stat {
+  /* The kernel headers suggest that st_dev and st_rdev should be 32bit
+   * quantities encoding 12bit major and 20bit minor numbers in an interleaved
+   * format. In reality, we do not see useful data in the top bits. So,
+   * we'll leave the padding in here, until we find a better solution.
+   */
+  unsigned short     st_dev;
+  short              pad1;
+  unsigned           st_ino;
+  unsigned short     st_mode;
+  unsigned short     st_nlink;
+  unsigned short     st_uid;
+  unsigned short     st_gid;
+  unsigned short     st_rdev;
+  short              pad2;
+  unsigned           st_size;
+  unsigned           st_blksize;
+  unsigned           st_blocks;
+  unsigned           st_atime_;
+  unsigned           st_atime_nsec_;
+  unsigned           st_mtime_;
+  unsigned           st_mtime_nsec_;
+  unsigned           st_ctime_;
+  unsigned           st_ctime_nsec_;
+  unsigned           __unused4;
+  unsigned           __unused5;
+};
+#elif defined(__x86_64__)
+struct kernel_stat {
+  uint64_t           st_dev;
+  uint64_t           st_ino;
+  uint64_t           st_nlink;
+  unsigned           st_mode;
+  unsigned           st_uid;
+  unsigned           st_gid;
+  unsigned           __pad0;
+  uint64_t           st_rdev;
+  int64_t            st_size;
+  int64_t            st_blksize;
+  int64_t            st_blocks;
+  uint64_t           st_atime_;
+  uint64_t           st_atime_nsec_;
+  uint64_t           st_mtime_;
+  uint64_t           st_mtime_nsec_;
+  uint64_t           st_ctime_;
+  uint64_t           st_ctime_nsec_;
+  int64_t            __unused[3];
+};
+#elif defined(__PPC__)
+struct kernel_stat {
+  unsigned long long st_dev;
+  unsigned long      st_ino;
+  unsigned long      st_nlink;
+  unsigned long      st_mode;
+  unsigned           st_uid;
+  unsigned           st_gid;
+  int                __pad2;
+  unsigned long long st_rdev;
+  long               st_size;
+  unsigned long      st_blksize;
+  unsigned long      st_blocks;
+  kernel_timespec    st_atim;
+  kernel_timespec    st_mtim;
+  kernel_timespec    st_ctim;
+  unsigned long      __unused4;
+  unsigned long      __unused5;
+  unsigned long      __unused6;
+};
+#elif defined(__mips__) \
+       && !(_MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32)
+struct kernel_stat {
+  unsigned           st_dev;
+  int                st_pad1[3];
+  unsigned           st_ino;
+  unsigned           st_mode;
+  unsigned           st_nlink;
+  unsigned           st_uid;
+  unsigned           st_gid;
+  unsigned           st_rdev;
+  int                st_pad2[2];
+  long               st_size;
+  int                st_pad3;
+  long               st_atime_;
+  long               st_atime_nsec_;
+  long               st_mtime_;
+  long               st_mtime_nsec_;
+  long               st_ctime_;
+  long               st_ctime_nsec_;
+  int                st_blksize;
+  int                st_blocks;
+  int                st_pad4[14];
+};
+#elif defined(__aarch64__)
+struct kernel_stat {
+  unsigned long      st_dev;
+  unsigned long      st_ino;
+  unsigned int       st_mode;
+  unsigned int       st_nlink;
+  unsigned int       st_uid;
+  unsigned int       st_gid;
+  unsigned long      st_rdev;
+  unsigned long      __pad1;
+  long               st_size;
+  int                st_blksize;
+  int                __pad2;
+  long               st_blocks;
+  long               st_atime_;
+  unsigned long      st_atime_nsec_;
+  long               st_mtime_;
+  unsigned long      st_mtime_nsec_;
+  long               st_ctime_;
+  unsigned long      st_ctime_nsec_;
+  unsigned int       __unused4;
+  unsigned int       __unused5;
+};
+#elif defined(__s390x__)
+struct kernel_stat {
+  unsigned long      st_dev;
+  unsigned long      st_ino;
+  unsigned long      st_nlink;
+  unsigned int       st_mode;
+  unsigned int       st_uid;
+  unsigned int       st_gid;
+  unsigned int       __pad1;
+  unsigned long      st_rdev;
+  unsigned long      st_size;
+  unsigned long      st_atime_;
+  unsigned long      st_atime_nsec_;
+  unsigned long      st_mtime_;
+  unsigned long      st_mtime_nsec_;
+  unsigned long      st_ctime_;
+  unsigned long      st_ctime_nsec_;
+  unsigned long      st_blksize;
+  long               st_blocks;
+  unsigned long      __unused[3];
+};
+#elif defined(__s390__)
+struct kernel_stat {
+  unsigned short     st_dev;
+  unsigned short     __pad1;
+  unsigned long      st_ino;
+  unsigned short     st_mode;
+  unsigned short     st_nlink;
+  unsigned short     st_uid;
+  unsigned short     st_gid;
+  unsigned short     st_rdev;
+  unsigned short     __pad2;
+  unsigned long      st_size;
+  unsigned long      st_blksize;
+  unsigned long      st_blocks;
+  unsigned long      st_atime_;
+  unsigned long      st_atime_nsec_;
+  unsigned long      st_mtime_;
+  unsigned long      st_mtime_nsec_;
+  unsigned long      st_ctime_;
+  unsigned long      st_ctime_nsec_;
+  unsigned long      __unused4;
+  unsigned long      __unused5;
+};
+#endif
+
+
+/* Definitions missing from the standard header files                        */
+#ifndef O_DIRECTORY
+#if defined(__arm__)
+#define O_DIRECTORY             0040000
+#else
+#define O_DIRECTORY             0200000
+#endif
+#endif
+#ifndef PR_GET_DUMPABLE
+#define PR_GET_DUMPABLE         3
+#endif
+#ifndef PR_SET_DUMPABLE
+#define PR_SET_DUMPABLE         4
+#endif
+#ifndef AT_FDCWD
+#define AT_FDCWD                (-100)
+#endif
+#ifndef AT_SYMLINK_NOFOLLOW
+#define AT_SYMLINK_NOFOLLOW     0x100
+#endif
+#ifndef AT_REMOVEDIR
+#define AT_REMOVEDIR            0x200
+#endif
+#ifndef MREMAP_FIXED
+#define MREMAP_FIXED            2
+#endif
+#ifndef SA_RESTORER
+#define SA_RESTORER             0x04000000
+#endif
+
+#if defined(__i386__)
+#ifndef __NR_rt_sigaction
+#define __NR_rt_sigaction       174
+#define __NR_rt_sigprocmask     175
+#endif
+#ifndef __NR_stat64
+#define __NR_stat64             195
+#endif
+#ifndef __NR_fstat64
+#define __NR_fstat64            197
+#endif
+#ifndef __NR_getdents64
+#define __NR_getdents64         220
+#endif
+#ifndef __NR_gettid
+#define __NR_gettid             224
+#endif
+#ifndef __NR_futex
+#define __NR_futex              240
+#endif
+#ifndef __NR_openat
+#define __NR_openat             295
+#endif
+#ifndef __NR_getcpu
+#define __NR_getcpu             318
+#endif
+/* End of i386 definitions                                                   */
+#elif defined(__arm__)
+#ifndef __syscall
+#if defined(__thumb__) || defined(__ARM_EABI__)
+#define __SYS_REG(name) register long __sysreg __asm__("r6") = __NR_##name;
+#define __SYS_REG_LIST(regs...) [sysreg] "r" (__sysreg) , ##regs
+#define __syscall(name) "swi\t0"
+#define __syscall_safe(name)                     \
+  "push  {r7}\n"                                 \
+  "mov   r7,%[sysreg]\n"                         \
+  __syscall(name)"\n"                            \
+  "pop   {r7}"
+#else
+#define __SYS_REG(name)
+#define __SYS_REG_LIST(regs...) regs
+#define __syscall(name) "swi\t" __sys1(__NR_##name) ""
+#define __syscall_safe(name) __syscall(name)
+#endif
+#endif
+#ifndef __NR_rt_sigaction
+#define __NR_rt_sigaction       (__NR_SYSCALL_BASE + 174)
+#define __NR_rt_sigprocmask     (__NR_SYSCALL_BASE + 175)
+#endif
+#ifndef __NR_stat64
+#define __NR_stat64             (__NR_SYSCALL_BASE + 195)
+#endif
+#ifndef __NR_fstat64
+#define __NR_fstat64            (__NR_SYSCALL_BASE + 197)
+#endif
+#ifndef __NR_getdents64
+#define __NR_getdents64         (__NR_SYSCALL_BASE + 217)
+#endif
+#ifndef __NR_gettid
+#define __NR_gettid             (__NR_SYSCALL_BASE + 224)
+#endif
+#ifndef __NR_futex
+#define __NR_futex              (__NR_SYSCALL_BASE + 240)
+#endif
+/* End of ARM definitions                                                  */
+#elif defined(__x86_64__)
+#ifndef __NR_gettid
+#define __NR_gettid             186
+#endif
+#ifndef __NR_futex
+#define __NR_futex              202
+#endif
+#ifndef __NR_getdents64
+#define __NR_getdents64         217
+#endif
+#ifndef __NR_openat
+#define __NR_openat             257
+#endif
+/* End of x86-64 definitions                                                 */
+#elif defined(__mips__)
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+#ifndef __NR_rt_sigaction
+#define __NR_rt_sigaction       (__NR_Linux + 194)
+#define __NR_rt_sigprocmask     (__NR_Linux + 195)
+#endif
+#ifndef __NR_stat64
+#define __NR_stat64             (__NR_Linux + 213)
+#endif
+#ifndef __NR_fstat64
+#define __NR_fstat64            (__NR_Linux + 215)
+#endif
+#ifndef __NR_getdents64
+#define __NR_getdents64         (__NR_Linux + 219)
+#endif
+#ifndef __NR_gettid
+#define __NR_gettid             (__NR_Linux + 222)
+#endif
+#ifndef __NR_futex
+#define __NR_futex              (__NR_Linux + 238)
+#endif
+#ifndef __NR_openat
+#define __NR_openat             (__NR_Linux + 288)
+#endif
+#ifndef __NR_fstatat
+#define __NR_fstatat            (__NR_Linux + 293)
+#endif
+#ifndef __NR_getcpu
+#define __NR_getcpu             (__NR_Linux + 312)
+#endif
+/* End of MIPS (old 32bit API) definitions */
+#elif (_MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32)
+#ifndef __NR_gettid
+#define __NR_gettid             (__NR_Linux + 178)
+#endif
+#ifndef __NR_futex
+#define __NR_futex              (__NR_Linux + 194)
+#endif
+#ifndef __NR_openat
+#define __NR_openat             (__NR_Linux + 247)
+#endif
+#ifndef __NR_fstatat
+#define __NR_fstatat            (__NR_Linux + 252)
+#endif
+#ifndef __NR_getcpu
+#define __NR_getcpu             (__NR_Linux + 271)
+#endif
+/* End of MIPS (64bit API) definitions */
+#else
+#ifndef __NR_gettid
+#define __NR_gettid             (__NR_Linux + 178)
+#endif
+#ifndef __NR_futex
+#define __NR_futex              (__NR_Linux + 194)
+#endif
+#ifndef __NR_openat
+#define __NR_openat             (__NR_Linux + 251)
+#endif
+#ifndef __NR_fstatat
+#define __NR_fstatat            (__NR_Linux + 256)
+#endif
+#ifndef __NR_getcpu
+#define __NR_getcpu             (__NR_Linux + 275)
+#endif
+/* End of MIPS (new 32bit API) definitions                                   */
+#endif
+/* End of MIPS definitions                                                   */
+#elif defined(__PPC__)
+#ifndef __NR_rt_sigaction
+#define __NR_rt_sigaction       173
+#define __NR_rt_sigprocmask     174
+#endif
+#ifndef __NR_stat64
+#define __NR_stat64             195
+#endif
+#ifndef __NR_fstat64
+#define __NR_fstat64            197
+#endif
+#ifndef __NR_socket
+#define __NR_socket             198
+#endif
+#ifndef __NR_getdents64
+#define __NR_getdents64         202
+#endif
+#ifndef __NR_gettid
+#define __NR_gettid             207
+#endif
+#ifndef __NR_futex
+#define __NR_futex              221
+#endif
+#ifndef __NR_openat
+#define __NR_openat             286
+#endif
+#ifndef __NR_getcpu
+#define __NR_getcpu             302
+#endif
+/* End of powerpc definitions                                              */
+#elif defined(__aarch64__)
+#ifndef __NR_fstatat
+#define __NR_fstatat             79
+#endif
+/* End of aarch64 definitions                                              */
+#elif defined(__s390__)
+#ifndef __NR_quotactl
+#define __NR_quotactl           131
+#endif
+#ifndef __NR_rt_sigreturn
+#define __NR_rt_sigreturn       173
+#endif
+#ifndef __NR_rt_sigaction
+#define __NR_rt_sigaction       174
+#endif
+#ifndef __NR_rt_sigprocmask
+#define __NR_rt_sigprocmask     175
+#endif
+#ifndef __NR_rt_sigpending
+#define __NR_rt_sigpending      176
+#endif
+#ifndef __NR_rt_sigsuspend
+#define __NR_rt_sigsuspend      179
+#endif
+#ifndef __NR_pread64
+#define __NR_pread64            180
+#endif
+#ifndef __NR_pwrite64
+#define __NR_pwrite64           181
+#endif
+#ifndef __NR_getdents64
+#define __NR_getdents64         220
+#endif
+#ifndef __NR_readahead
+#define __NR_readahead          222
+#endif
+#ifndef __NR_setxattr
+#define __NR_setxattr           224
+#endif
+#ifndef __NR_lsetxattr
+#define __NR_lsetxattr          225
+#endif
+#ifndef __NR_getxattr
+#define __NR_getxattr           227
+#endif
+#ifndef __NR_lgetxattr
+#define __NR_lgetxattr          228
+#endif
+#ifndef __NR_listxattr
+#define __NR_listxattr          230
+#endif
+#ifndef __NR_llistxattr
+#define __NR_llistxattr         231
+#endif
+#ifndef __NR_gettid
+#define __NR_gettid             236
+#endif
+#ifndef __NR_tkill
+#define __NR_tkill              237
+#endif
+#ifndef __NR_futex
+#define __NR_futex              238
+#endif
+#ifndef __NR_sched_setaffinity
+#define __NR_sched_setaffinity  239
+#endif
+#ifndef __NR_sched_getaffinity
+#define __NR_sched_getaffinity  240
+#endif
+#ifndef __NR_set_tid_address
+#define __NR_set_tid_address    252
+#endif
+#ifndef __NR_clock_gettime
+#define __NR_clock_gettime      260
+#endif
+#ifndef __NR_clock_getres
+#define __NR_clock_getres       261
+#endif
+#ifndef __NR_statfs64
+#define __NR_statfs64           265
+#endif
+#ifndef __NR_fstatfs64
+#define __NR_fstatfs64          266
+#endif
+#ifndef __NR_ioprio_set
+#define __NR_ioprio_set         282
+#endif
+#ifndef __NR_ioprio_get
+#define __NR_ioprio_get         283
+#endif
+#ifndef __NR_openat
+#define __NR_openat             288
+#endif
+#ifndef __NR_unlinkat
+#define __NR_unlinkat           294
+#endif
+#ifndef __NR_move_pages
+#define __NR_move_pages         310
+#endif
+#ifndef __NR_getcpu
+#define __NR_getcpu             311
+#endif
+#ifndef __NR_fallocate
+#define __NR_fallocate          314
+#endif
+/* Some syscalls are named/numbered differently between s390 and s390x. */
+#ifdef __s390x__
+# ifndef __NR_getrlimit
+# define __NR_getrlimit          191
+# endif
+# ifndef __NR_setresuid
+# define __NR_setresuid          208
+# endif
+# ifndef __NR_getresuid
+# define __NR_getresuid          209
+# endif
+# ifndef __NR_setresgid
+# define __NR_setresgid          210
+# endif
+# ifndef __NR_getresgid
+# define __NR_getresgid          211
+# endif
+# ifndef __NR_setfsuid
+# define __NR_setfsuid           215
+# endif
+# ifndef __NR_setfsgid
+# define __NR_setfsgid           216
+# endif
+# ifndef __NR_fadvise64
+# define __NR_fadvise64          253
+# endif
+# ifndef __NR_newfstatat
+# define __NR_newfstatat         293
+# endif
+#else /* __s390x__ */
+# ifndef __NR_getrlimit
+# define __NR_getrlimit          76
+# endif
+# ifndef __NR_setfsuid
+# define __NR_setfsuid           138
+# endif
+# ifndef __NR_setfsgid
+# define __NR_setfsgid           139
+# endif
+# ifndef __NR_setresuid
+# define __NR_setresuid          164
+# endif
+# ifndef __NR_getresuid
+# define __NR_getresuid          165
+# endif
+# ifndef __NR_setresgid
+# define __NR_setresgid          170
+# endif
+# ifndef __NR_getresgid
+# define __NR_getresgid          171
+# endif
+# ifndef __NR_ugetrlimit
+# define __NR_ugetrlimit         191
+# endif
+# ifndef __NR_mmap2
+# define __NR_mmap2              192
+# endif
+# ifndef __NR_setresuid32
+# define __NR_setresuid32        208
+# endif
+# ifndef __NR_getresuid32
+# define __NR_getresuid32        209
+# endif
+# ifndef __NR_setresgid32
+# define __NR_setresgid32        210
+# endif
+# ifndef __NR_getresgid32
+# define __NR_getresgid32        211
+# endif
+# ifndef __NR_setfsuid32
+# define __NR_setfsuid32         215
+# endif
+# ifndef __NR_setfsgid32
+# define __NR_setfsgid32         216
+# endif
+# ifndef __NR_fadvise64_64
+# define __NR_fadvise64_64       264
+# endif
+# ifndef __NR_fstatat64
+# define __NR_fstatat64          293
+# endif
+#endif /* __s390__ */
+/* End of s390/s390x definitions                                             */
+#elif defined(__riscv)
+# ifndef __NR_gettid
+# define __NR_gettid             178
+# endif
+# ifndef __NR_futex
+# define __NR_futex              422
+# endif
+# ifndef __NR_getdents64
+# define __NR_getdents64         61
+# endif
+# ifndef __NR_openat
+# define __NR_openat             56
+# endif
+# ifndef __NR_fstatat
+# define __NR_fstatat            79
+# endif
+#endif
+
+
+/* After forking, we must make sure to only call system calls.               */
+#if __BOUNDED_POINTERS__
+  #error "Need to port invocations of syscalls for bounded ptrs"
+#else
+  /* The core dumper and the thread lister get executed after threads
+   * have been suspended. As a consequence, we cannot call any functions
+   * that acquire locks. Unfortunately, libc wraps most system calls
+   * (e.g. in order to implement pthread_atfork, and to make calls
+   * cancellable), which means we cannot call these functions. Instead,
+   * we have to call syscall() directly.
+   */
+  #undef LSS_ERRNO
+  #ifdef SYS_ERRNO
+    /* Allow the including file to override the location of errno. This can
+     * be useful when using clone() with the CLONE_VM option.
+     */
+    #define LSS_ERRNO SYS_ERRNO
+  #else
+    #define LSS_ERRNO errno
+  #endif
+
+  #undef LSS_INLINE
+  #ifdef SYS_INLINE
+    #define LSS_INLINE SYS_INLINE
+  #else
+    #define LSS_INLINE static inline
+  #endif
+
+  /* Allow the including file to override the prefix used for all new
+   * system calls. By default, it will be set to "sys_".
+   */
+  #undef LSS_NAME
+  #ifndef SYS_PREFIX
+    #define LSS_NAME(name) sys_##name
+  #elif SYS_PREFIX < 0
+    #define LSS_NAME(name) name
+  #elif SYS_PREFIX == 0
+    #define LSS_NAME(name) sys0_##name
+  #elif SYS_PREFIX == 1
+    #define LSS_NAME(name) sys1_##name
+  #elif SYS_PREFIX == 2
+    #define LSS_NAME(name) sys2_##name
+  #elif SYS_PREFIX == 3
+    #define LSS_NAME(name) sys3_##name
+  #elif SYS_PREFIX == 4
+    #define LSS_NAME(name) sys4_##name
+  #elif SYS_PREFIX == 5
+    #define LSS_NAME(name) sys5_##name
+  #elif SYS_PREFIX == 6
+    #define LSS_NAME(name) sys6_##name
+  #elif SYS_PREFIX == 7
+    #define LSS_NAME(name) sys7_##name
+  #elif SYS_PREFIX == 8
+    #define LSS_NAME(name) sys8_##name
+  #elif SYS_PREFIX == 9
+    #define LSS_NAME(name) sys9_##name
+  #endif
+
+  #undef  LSS_RETURN
+  #if (defined(__i386__) || defined(__x86_64__) || defined(__arm__) ||        \
+       defined(__aarch64__) || defined(__s390__) || defined(__riscv))
+  /* Failing system calls return a negative result in the range of
+   * -1..-4095. These are "errno" values with the sign inverted.
+   */
+  #define LSS_RETURN(type, res)                                               \
+    do {                                                                      \
+      if ((unsigned long)(res) >= (unsigned long)(-4095)) {                   \
+        LSS_ERRNO = -(res);                                                   \
+        res = -1;                                                             \
+      }                                                                       \
+      return (type) (res);                                                    \
+    } while (0)
+  #elif defined(__mips__)
+  /* On MIPS, failing system calls return -1, and set errno in a
+   * separate CPU register.
+   */
+  #define LSS_RETURN(type, res, err)                                          \
+    do {                                                                      \
+      if (err) {                                                              \
+        LSS_ERRNO = (res);                                                    \
+        res = -1;                                                             \
+      }                                                                       \
+      return (type) (res);                                                    \
+    } while (0)
+  #elif defined(__PPC__)
+  /* On PPC, failing system calls return -1, and set errno in a
+   * separate CPU register. See linux/unistd.h.
+   */
+  #define LSS_RETURN(type, res, err)                                          \
+   do {                                                                       \
+     if (err & 0x10000000 ) {                                                 \
+       LSS_ERRNO = (res);                                                     \
+       res = -1;                                                              \
+     }                                                                        \
+     return (type) (res);                                                     \
+   } while (0)
+  #endif
+  #if defined(__i386__)
+    #if defined(NO_FRAME_POINTER) && (100 * __GNUC__ + __GNUC_MINOR__ >= 404)
+      /* This only works for GCC-4.4 and above -- the first version to use
+         .cfi directives for dwarf unwind info.  */
+      #define CFI_ADJUST_CFA_OFFSET(adjust)                                   \
+                  ".cfi_adjust_cfa_offset " #adjust "\n"
+    #else
+      #define CFI_ADJUST_CFA_OFFSET(adjust) /**/
+    #endif
+
+    /* In PIC mode (e.g. when building shared libraries), gcc for i386
+     * reserves ebx. Unfortunately, most distribution ship with implementations
+     * of _syscallX() which clobber ebx.
+     * Also, most definitions of _syscallX() neglect to mark "memory" as being
+     * clobbered. This causes problems with compilers, that do a better job
+     * at optimizing across __asm__ calls.
+     * So, we just have to redefine all of the _syscallX() macros.
+     */
+    #undef  LSS_BODY
+    #define LSS_BODY(type,args...)                                            \
+      long __res;                                                             \
+      __asm__ __volatile__("push %%ebx\n"                                     \
+                           CFI_ADJUST_CFA_OFFSET(4)                           \
+                           "movl %2,%%ebx\n"                                  \
+                           "int $0x80\n"                                      \
+                           "pop %%ebx\n"                                      \
+                           CFI_ADJUST_CFA_OFFSET(-4)                          \
+                           args                                               \
+                           : "memory");                                       \
+      LSS_RETURN(type,__res)
+    #undef  _syscall0
+    #define _syscall0(type,name)                                              \
+      type LSS_NAME(name)(void) {                                             \
+        long __res;                                                           \
+        __asm__ volatile("int $0x80"                                          \
+                         : "=a" (__res)                                       \
+                         : "0" (__NR_##name)                                  \
+                         : "memory");                                         \
+        LSS_RETURN(type,__res);                                               \
+      }
+    #undef  _syscall1
+    #define _syscall1(type,name,type1,arg1)                                   \
+      type LSS_NAME(name)(type1 arg1) {                                       \
+        LSS_BODY(type,                                                        \
+             : "=a" (__res)                                                   \
+             : "0" (__NR_##name), "ri" ((long)(arg1)));                       \
+      }
+    #undef  _syscall2
+    #define _syscall2(type,name,type1,arg1,type2,arg2)                        \
+      type LSS_NAME(name)(type1 arg1,type2 arg2) {                            \
+        LSS_BODY(type,                                                        \
+             : "=a" (__res)                                                   \
+             : "0" (__NR_##name),"ri" ((long)(arg1)), "c" ((long)(arg2)));    \
+      }
+    #undef  _syscall3
+    #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)             \
+      type LSS_NAME(name)(type1 arg1,type2 arg2,type3 arg3) {                 \
+        LSS_BODY(type,                                                        \
+             : "=a" (__res)                                                   \
+             : "0" (__NR_##name), "ri" ((long)(arg1)), "c" ((long)(arg2)),    \
+               "d" ((long)(arg3)));                                           \
+      }
+    #undef  _syscall4
+    #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {   \
+        LSS_BODY(type,                                                        \
+             : "=a" (__res)                                                   \
+             : "0" (__NR_##name), "ri" ((long)(arg1)), "c" ((long)(arg2)),    \
+               "d" ((long)(arg3)),"S" ((long)(arg4)));                        \
+      }
+    #undef  _syscall5
+    #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5)                                             \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5) {                                       \
+        long __res;                                                           \
+        __asm__ __volatile__("push %%ebx\n"                                   \
+                             "movl %2,%%ebx\n"                                \
+                             "movl %1,%%eax\n"                                \
+                             "int  $0x80\n"                                   \
+                             "pop  %%ebx"                                     \
+                             : "=a" (__res)                                   \
+                             : "i" (__NR_##name), "ri" ((long)(arg1)),        \
+                               "c" ((long)(arg2)), "d" ((long)(arg3)),        \
+                               "S" ((long)(arg4)), "D" ((long)(arg5))         \
+                             : "memory");                                     \
+        LSS_RETURN(type,__res);                                               \
+      }
+    #undef  _syscall6
+    #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5,type6,arg6)                                  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5, type6 arg6) {                           \
+        long __res;                                                           \
+        struct { long __a1; long __a6; } __s = { (long)arg1, (long) arg6 };   \
+        __asm__ __volatile__("push %%ebp\n"                                   \
+                             "push %%ebx\n"                                   \
+                             "movl 4(%2),%%ebp\n"                             \
+                             "movl 0(%2), %%ebx\n"                            \
+                             "movl %1,%%eax\n"                                \
+                             "int  $0x80\n"                                   \
+                             "pop  %%ebx\n"                                   \
+                             "pop  %%ebp"                                     \
+                             : "=a" (__res)                                   \
+                             : "i" (__NR_##name),  "0" ((long)(&__s)),        \
+                               "c" ((long)(arg2)), "d" ((long)(arg3)),        \
+                               "S" ((long)(arg4)), "D" ((long)(arg5))         \
+                             : "memory");                                     \
+        LSS_RETURN(type,__res);                                               \
+      }
+    LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
+                                   int flags, void *arg, int *parent_tidptr,
+                                   void *newtls, int *child_tidptr) {
+      long __res;
+      __asm__ __volatile__(/* if (fn == NULL)
+                            *   return -EINVAL;
+                            */
+                           "movl   %3,%%ecx\n"
+                           "jecxz  1f\n"
+
+                           /* if (child_stack == NULL)
+                            *   return -EINVAL;
+                            */
+                           "movl   %4,%%ecx\n"
+                           "jecxz  1f\n"
+
+                           /* Set up alignment of the child stack:
+                            * child_stack = (child_stack & ~0xF) - 20;
+                            */
+                           "andl   $-16,%%ecx\n"
+                           "subl   $20,%%ecx\n"
+
+                           /* Push "arg" and "fn" onto the stack that will be
+                            * used by the child.
+                            */
+                           "movl   %6,%%eax\n"
+                           "movl   %%eax,4(%%ecx)\n"
+                           "movl   %3,%%eax\n"
+                           "movl   %%eax,(%%ecx)\n"
+
+                           /* %eax = syscall(%eax = __NR_clone,
+                            *                %ebx = flags,
+                            *                %ecx = child_stack,
+                            *                %edx = parent_tidptr,
+                            *                %esi = newtls,
+                            *                %edi = child_tidptr)
+                            * Also, make sure that %ebx gets preserved as it is
+                            * used in PIC mode.
+                            */
+                           "movl   %8,%%esi\n"
+                           "movl   %7,%%edx\n"
+                           "movl   %5,%%eax\n"
+                           "movl   %9,%%edi\n"
+                           "pushl  %%ebx\n"
+                           "movl   %%eax,%%ebx\n"
+                           "movl   %2,%%eax\n"
+                           "int    $0x80\n"
+
+                           /* In the parent: restore %ebx
+                            * In the child:  move "fn" into %ebx
+                            */
+                           "popl   %%ebx\n"
+
+                           /* if (%eax != 0)
+                            *   return %eax;
+                            */
+                           "test   %%eax,%%eax\n"
+                           "jnz    1f\n"
+
+                           /* In the child, now. Terminate frame pointer chain.
+                            */
+                           "movl   $0,%%ebp\n"
+
+                           /* Call "fn". "arg" is already on the stack.
+                            */
+                           "call   *%%ebx\n"
+
+                           /* Call _exit(%ebx). Unfortunately older versions
+                            * of gcc restrict the number of arguments that can
+                            * be passed to asm(). So, we need to hard-code the
+                            * system call number.
+                            */
+                           "movl   %%eax,%%ebx\n"
+                           "movl   $1,%%eax\n"
+                           "int    $0x80\n"
+
+                           /* Return to parent.
+                            */
+                         "1:\n"
+                           : "=a" (__res)
+                           : "0"(-EINVAL), "i"(__NR_clone),
+                             "m"(fn), "m"(child_stack), "m"(flags), "m"(arg),
+                             "m"(parent_tidptr), "m"(newtls), "m"(child_tidptr)
+                           : "memory", "ecx", "edx", "esi", "edi");
+      LSS_RETURN(int, __res);
+    }
+
+    LSS_INLINE void (*LSS_NAME(restore_rt)(void))(void) {
+      /* On i386, the kernel does not know how to return from a signal
+       * handler. Instead, it relies on user space to provide a
+       * restorer function that calls the {rt_,}sigreturn() system call.
+       * Unfortunately, we cannot just reference the glibc version of this
+       * function, as glibc goes out of its way to make it inaccessible.
+       */
+      void (*res)(void);
+      __asm__ __volatile__("call   2f\n"
+                         "0:.align 16\n"
+                         "1:movl   %1,%%eax\n"
+                           "int    $0x80\n"
+                         "2:popl   %0\n"
+                           "addl   $(1b-0b),%0\n"
+                           : "=a" (res)
+                           : "i"  (__NR_rt_sigreturn));
+      return res;
+    }
+    LSS_INLINE void (*LSS_NAME(restore)(void))(void) {
+      /* On i386, the kernel does not know how to return from a signal
+       * handler. Instead, it relies on user space to provide a
+       * restorer function that calls the {rt_,}sigreturn() system call.
+       * Unfortunately, we cannot just reference the glibc version of this
+       * function, as glibc goes out of its way to make it inaccessible.
+       */
+      void (*res)(void);
+      __asm__ __volatile__("call   2f\n"
+                         "0:.align 16\n"
+                         "1:pop    %%eax\n"
+                           "movl   %1,%%eax\n"
+                           "int    $0x80\n"
+                         "2:popl   %0\n"
+                           "addl   $(1b-0b),%0\n"
+                           : "=a" (res)
+                           : "i"  (__NR_sigreturn));
+      return res;
+    }
+  #elif defined(__x86_64__)
+    /* There are no known problems with any of the _syscallX() macros
+     * currently shipping for x86_64, but we still need to be able to define
+     * our own version so that we can override the location of the errno
+     * location (e.g. when using the clone() system call with the CLONE_VM
+     * option).
+     */
+    #undef  LSS_ENTRYPOINT
+    #define LSS_ENTRYPOINT "syscall\n"
+
+    /* The x32 ABI has 32 bit longs, but the syscall interface is 64 bit.
+     * We need to explicitly cast to an unsigned 64 bit type to avoid implicit
+     * sign extension.  We can't cast pointers directly because those are
+     * 32 bits, and gcc will dump ugly warnings about casting from a pointer
+     * to an integer of a different size.
+     */
+    #undef  LSS_SYSCALL_ARG
+    #define LSS_SYSCALL_ARG(a) ((uint64_t)(uintptr_t)(a))
+    #undef  _LSS_RETURN
+    #define _LSS_RETURN(type, res, cast)                                      \
+      do {                                                                    \
+        if ((uint64_t)(res) >= (uint64_t)(-4095)) {                           \
+          LSS_ERRNO = -(res);                                                 \
+          res = -1;                                                           \
+        }                                                                     \
+        return (type)(cast)(res);                                             \
+      } while (0)
+    #undef  LSS_RETURN
+    #define LSS_RETURN(type, res) _LSS_RETURN(type, res, uintptr_t)
+
+    #undef  _LSS_BODY
+    #define _LSS_BODY(nr, type, name, cast, ...)                              \
+          long long __res;                                                    \
+          __asm__ __volatile__(LSS_BODY_ASM##nr LSS_ENTRYPOINT                \
+            : "=a" (__res)                                                    \
+            : "0" (__NR_##name) LSS_BODY_ARG##nr(__VA_ARGS__)                 \
+            : LSS_BODY_CLOBBER##nr "r11", "rcx", "memory");                   \
+          _LSS_RETURN(type, __res, cast)
+    #undef  LSS_BODY
+    #define LSS_BODY(nr, type, name, args...) \
+      _LSS_BODY(nr, type, name, uintptr_t, ## args)
+
+    #undef  LSS_BODY_ASM0
+    #undef  LSS_BODY_ASM1
+    #undef  LSS_BODY_ASM2
+    #undef  LSS_BODY_ASM3
+    #undef  LSS_BODY_ASM4
+    #undef  LSS_BODY_ASM5
+    #undef  LSS_BODY_ASM6
+    #define LSS_BODY_ASM0
+    #define LSS_BODY_ASM1 LSS_BODY_ASM0
+    #define LSS_BODY_ASM2 LSS_BODY_ASM1
+    #define LSS_BODY_ASM3 LSS_BODY_ASM2
+    #define LSS_BODY_ASM4 LSS_BODY_ASM3 "movq %5,%%r10;"
+    #define LSS_BODY_ASM5 LSS_BODY_ASM4 "movq %6,%%r8;"
+    #define LSS_BODY_ASM6 LSS_BODY_ASM5 "movq %7,%%r9;"
+
+    #undef  LSS_BODY_CLOBBER0
+    #undef  LSS_BODY_CLOBBER1
+    #undef  LSS_BODY_CLOBBER2
+    #undef  LSS_BODY_CLOBBER3
+    #undef  LSS_BODY_CLOBBER4
+    #undef  LSS_BODY_CLOBBER5
+    #undef  LSS_BODY_CLOBBER6
+    #define LSS_BODY_CLOBBER0
+    #define LSS_BODY_CLOBBER1 LSS_BODY_CLOBBER0
+    #define LSS_BODY_CLOBBER2 LSS_BODY_CLOBBER1
+    #define LSS_BODY_CLOBBER3 LSS_BODY_CLOBBER2
+    #define LSS_BODY_CLOBBER4 LSS_BODY_CLOBBER3 "r10",
+    #define LSS_BODY_CLOBBER5 LSS_BODY_CLOBBER4 "r8",
+    #define LSS_BODY_CLOBBER6 LSS_BODY_CLOBBER5 "r9",
+
+    #undef  LSS_BODY_ARG0
+    #undef  LSS_BODY_ARG1
+    #undef  LSS_BODY_ARG2
+    #undef  LSS_BODY_ARG3
+    #undef  LSS_BODY_ARG4
+    #undef  LSS_BODY_ARG5
+    #undef  LSS_BODY_ARG6
+    #define LSS_BODY_ARG0()
+    #define LSS_BODY_ARG1(arg1) \
+      LSS_BODY_ARG0(), "D" (arg1)
+    #define LSS_BODY_ARG2(arg1, arg2) \
+      LSS_BODY_ARG1(arg1), "S" (arg2)
+    #define LSS_BODY_ARG3(arg1, arg2, arg3) \
+      LSS_BODY_ARG2(arg1, arg2), "d" (arg3)
+    #define LSS_BODY_ARG4(arg1, arg2, arg3, arg4) \
+      LSS_BODY_ARG3(arg1, arg2, arg3), "r" (arg4)
+    #define LSS_BODY_ARG5(arg1, arg2, arg3, arg4, arg5) \
+      LSS_BODY_ARG4(arg1, arg2, arg3, arg4), "r" (arg5)
+    #define LSS_BODY_ARG6(arg1, arg2, arg3, arg4, arg5, arg6) \
+      LSS_BODY_ARG5(arg1, arg2, arg3, arg4, arg5), "r" (arg6)
+
+    #undef _syscall0
+    #define _syscall0(type,name)                                              \
+      type LSS_NAME(name)() {                                                 \
+        LSS_BODY(0, type, name);                                              \
+      }
+    #undef _syscall1
+    #define _syscall1(type,name,type1,arg1)                                   \
+      type LSS_NAME(name)(type1 arg1) {                                       \
+        LSS_BODY(1, type, name, LSS_SYSCALL_ARG(arg1));                       \
+      }
+    #undef _syscall2
+    #define _syscall2(type,name,type1,arg1,type2,arg2)                        \
+      type LSS_NAME(name)(type1 arg1, type2 arg2) {                           \
+        LSS_BODY(2, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2));\
+      }
+    #undef _syscall3
+    #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)             \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) {               \
+        LSS_BODY(3, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2), \
+                                LSS_SYSCALL_ARG(arg3));                       \
+      }
+    #undef _syscall4
+    #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {   \
+        LSS_BODY(4, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2), \
+                                LSS_SYSCALL_ARG(arg3), LSS_SYSCALL_ARG(arg4));\
+      }
+    #undef _syscall5
+    #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5)                                             \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5) {                                       \
+        LSS_BODY(5, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2), \
+                                LSS_SYSCALL_ARG(arg3), LSS_SYSCALL_ARG(arg4), \
+                                LSS_SYSCALL_ARG(arg5));                       \
+      }
+    #undef _syscall6
+    #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5,type6,arg6)                                  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5, type6 arg6) {                           \
+        LSS_BODY(6, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2), \
+                                LSS_SYSCALL_ARG(arg3), LSS_SYSCALL_ARG(arg4), \
+                                LSS_SYSCALL_ARG(arg5), LSS_SYSCALL_ARG(arg6));\
+      }
+    LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
+                                   int flags, void *arg, int *parent_tidptr,
+                                   void *newtls, int *child_tidptr) {
+      long long __res;
+      {
+        __asm__ __volatile__(/* if (fn == NULL)
+                              *   return -EINVAL;
+                              */
+                             "testq  %4,%4\n"
+                             "jz     1f\n"
+
+                             /* if (child_stack == NULL)
+                              *   return -EINVAL;
+                              */
+                             "testq  %5,%5\n"
+                             "jz     1f\n"
+
+                             /* Set up alignment of the child stack:
+                              * child_stack = (child_stack & ~0xF) - 16;
+                              */
+                             "andq   $-16,%5\n"
+                             "subq   $16,%5\n"
+
+                             /* Push "arg" and "fn" onto the stack that will be
+                              * used by the child.
+                              */
+                             "movq   %7,8(%5)\n"
+                             "movq   %4,0(%5)\n"
+
+                             /* %rax = syscall(%rax = __NR_clone,
+                              *                %rdi = flags,
+                              *                %rsi = child_stack,
+                              *                %rdx = parent_tidptr,
+                              *                %r8  = new_tls,
+                              *                %r10 = child_tidptr)
+                              */
+                             "movq   %2,%%rax\n"
+                             "movq   %9,%%r8\n"
+                             "movq   %10,%%r10\n"
+                             "syscall\n"
+
+                             /* if (%rax != 0)
+                              *   return;
+                              */
+                             "testq  %%rax,%%rax\n"
+                             "jnz    1f\n"
+
+                             /* In the child. Terminate frame pointer chain.
+                              */
+                             "xorq   %%rbp,%%rbp\n"
+
+                             /* Call "fn(arg)".
+                              */
+                             "popq   %%rax\n"
+                             "popq   %%rdi\n"
+                             "call   *%%rax\n"
+
+                             /* Call _exit(%ebx).
+                              */
+                             "movq   %%rax,%%rdi\n"
+                             "movq   %3,%%rax\n"
+                             "syscall\n"
+
+                             /* Return to parent.
+                              */
+                           "1:\n"
+                             : "=a" (__res)
+                             : "0"(-EINVAL), "i"(__NR_clone), "i"(__NR_exit),
+                               "r"(LSS_SYSCALL_ARG(fn)),
+                               "S"(LSS_SYSCALL_ARG(child_stack)),
+                               "D"(LSS_SYSCALL_ARG(flags)),
+                               "r"(LSS_SYSCALL_ARG(arg)),
+                               "d"(LSS_SYSCALL_ARG(parent_tidptr)),
+                               "r"(LSS_SYSCALL_ARG(newtls)),
+                               "r"(LSS_SYSCALL_ARG(child_tidptr))
+                             : "memory", "r8", "r10", "r11", "rcx");
+      }
+      LSS_RETURN(int, __res);
+    }
+
+    LSS_INLINE void (*LSS_NAME(restore_rt)(void))(void) {
+      /* On x86-64, the kernel does not know how to return from
+       * a signal handler. Instead, it relies on user space to provide a
+       * restorer function that calls the rt_sigreturn() system call.
+       * Unfortunately, we cannot just reference the glibc version of this
+       * function, as glibc goes out of its way to make it inaccessible.
+       */
+      long long res;
+      __asm__ __volatile__("call   2f\n"
+                         "0:.align 16\n"
+                         "1:movq   %1,%%rax\n"
+                           "syscall\n"
+                         "2:popq   %0\n"
+                           "addq   $(1b-0b),%0\n"
+                           : "=a" (res)
+                           : "i"  (__NR_rt_sigreturn));
+      return (void (*)(void))(uintptr_t)res;
+    }
+  #elif defined(__arm__)
+    /* Most definitions of _syscallX() neglect to mark "memory" as being
+     * clobbered. This causes problems with compilers, that do a better job
+     * at optimizing across __asm__ calls.
+     * So, we just have to redefine all fo the _syscallX() macros.
+     */
+    #undef LSS_REG
+    #define LSS_REG(r,a) register long __r##r __asm__("r"#r) = (long)a
+
+    /* r0..r3 are scratch registers and not preserved across function
+     * calls.  We need to first evaluate the first 4 syscall arguments
+     * and store them on stack.  They must be loaded into r0..r3 after
+     * all function calls to avoid r0..r3 being clobbered.
+     */
+    #undef LSS_SAVE_ARG
+    #define LSS_SAVE_ARG(r,a) long __tmp##r = (long)a
+    #undef LSS_LOAD_ARG
+    #define LSS_LOAD_ARG(r) register long __r##r __asm__("r"#r) = __tmp##r
+
+    #undef  LSS_BODY
+    #define LSS_BODY(type, name, args...)                                     \
+          register long __res_r0 __asm__("r0");                               \
+          long __res;                                                         \
+          __SYS_REG(name)                                                     \
+          __asm__ __volatile__ (__syscall_safe(name)                          \
+                                : "=r"(__res_r0)                              \
+                                : __SYS_REG_LIST(args)                        \
+                                : "lr", "memory");                            \
+          __res = __res_r0;                                                   \
+          LSS_RETURN(type, __res)
+    #undef _syscall0
+    #define _syscall0(type, name)                                             \
+      type LSS_NAME(name)() {                                                 \
+        LSS_BODY(type, name);                                                 \
+      }
+    #undef _syscall1
+    #define _syscall1(type, name, type1, arg1)                                \
+      type LSS_NAME(name)(type1 arg1) {                                       \
+        /* There is no need for using a volatile temp.  */                    \
+        LSS_REG(0, arg1);                                                     \
+        LSS_BODY(type, name, "r"(__r0));                                      \
+      }
+    #undef _syscall2
+    #define _syscall2(type, name, type1, arg1, type2, arg2)                   \
+      type LSS_NAME(name)(type1 arg1, type2 arg2) {                           \
+        LSS_SAVE_ARG(0, arg1);                                                \
+        LSS_SAVE_ARG(1, arg2);                                                \
+        LSS_LOAD_ARG(0);                                                      \
+        LSS_LOAD_ARG(1);                                                      \
+        LSS_BODY(type, name, "r"(__r0), "r"(__r1));                           \
+      }
+    #undef _syscall3
+    #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3)      \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) {               \
+        LSS_SAVE_ARG(0, arg1);                                                \
+        LSS_SAVE_ARG(1, arg2);                                                \
+        LSS_SAVE_ARG(2, arg3);                                                \
+        LSS_LOAD_ARG(0);                                                      \
+        LSS_LOAD_ARG(1);                                                      \
+        LSS_LOAD_ARG(2);                                                      \
+        LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2));                \
+      }
+    #undef _syscall4
+    #define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                      type4, arg4)                                            \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {   \
+        LSS_SAVE_ARG(0, arg1);                                                \
+        LSS_SAVE_ARG(1, arg2);                                                \
+        LSS_SAVE_ARG(2, arg3);                                                \
+        LSS_SAVE_ARG(3, arg4);                                                \
+        LSS_LOAD_ARG(0);                                                      \
+        LSS_LOAD_ARG(1);                                                      \
+        LSS_LOAD_ARG(2);                                                      \
+        LSS_LOAD_ARG(3);                                                      \
+        LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3));     \
+      }
+    #undef _syscall5
+    #define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                      type4, arg4, type5, arg5)                               \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5) {                                       \
+        LSS_SAVE_ARG(0, arg1);                                                \
+        LSS_SAVE_ARG(1, arg2);                                                \
+        LSS_SAVE_ARG(2, arg3);                                                \
+        LSS_SAVE_ARG(3, arg4);                                                \
+        LSS_REG(4, arg5);                                                     \
+        LSS_LOAD_ARG(0);                                                      \
+        LSS_LOAD_ARG(1);                                                      \
+        LSS_LOAD_ARG(2);                                                      \
+        LSS_LOAD_ARG(3);                                                      \
+        LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3),      \
+                             "r"(__r4));                                      \
+      }
+    #undef _syscall6
+    #define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                      type4, arg4, type5, arg5, type6, arg6)                  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5, type6 arg6) {                           \
+        LSS_SAVE_ARG(0, arg1);                                                \
+        LSS_SAVE_ARG(1, arg2);                                                \
+        LSS_SAVE_ARG(2, arg3);                                                \
+        LSS_SAVE_ARG(3, arg4);                                                \
+        LSS_REG(4, arg5);                                                     \
+        LSS_REG(5, arg6);                                                     \
+        LSS_LOAD_ARG(0);                                                      \
+        LSS_LOAD_ARG(1);                                                      \
+        LSS_LOAD_ARG(2);                                                      \
+        LSS_LOAD_ARG(3);                                                      \
+        LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3),      \
+                             "r"(__r4), "r"(__r5));                           \
+      }
+    LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
+                                   int flags, void *arg, int *parent_tidptr,
+                                   void *newtls, int *child_tidptr) {
+      register long __res __asm__("r5");
+      {
+        if (fn == NULL || child_stack == NULL) {
+            __res = -EINVAL;
+            goto clone_exit;
+        }
+
+        /* stash first 4 arguments on stack first because we can only load
+         * them after all function calls.
+         */
+        int    tmp_flags = flags;
+        int  * tmp_stack = (int*) child_stack;
+        void * tmp_ptid  = parent_tidptr;
+        void * tmp_tls   = newtls;
+
+        register int  *__ctid  __asm__("r4") = child_tidptr;
+
+        /* Push "arg" and "fn" onto the stack that will be
+         * used by the child.
+         */
+        *(--tmp_stack) = (int) arg;
+        *(--tmp_stack) = (int) fn;
+
+        /* We must load r0..r3 last after all possible function calls.  */
+        register int   __flags __asm__("r0") = tmp_flags;
+        register void *__stack __asm__("r1") = tmp_stack;
+        register void *__ptid  __asm__("r2") = tmp_ptid;
+        register void *__tls   __asm__("r3") = tmp_tls;
+
+        /* %r0 = syscall(%r0 = flags,
+         *               %r1 = child_stack,
+         *               %r2 = parent_tidptr,
+         *               %r3 = newtls,
+         *               %r4 = child_tidptr)
+         */
+        __SYS_REG(clone)
+        __asm__ __volatile__(/* %r0 = syscall(%r0 = flags,
+                              *               %r1 = child_stack,
+                              *               %r2 = parent_tidptr,
+                              *               %r3 = newtls,
+                              *               %r4 = child_tidptr)
+                              */
+                             "push  {r7}\n"
+                             "mov   r7,%1\n"
+                             __syscall(clone)"\n"
+
+                             /* if (%r0 != 0)
+                              *   return %r0;
+                              */
+                             "movs  %0,r0\n"
+                             "bne   1f\n"
+
+                             /* In the child, now. Call "fn(arg)".
+                              */
+                             "ldr   r0,[sp, #4]\n"
+                             "mov   lr,pc\n"
+                             "ldr   pc,[sp]\n"
+
+                             /* Call _exit(%r0), which never returns.  We only
+                              * need to set r7 for EABI syscall ABI but we do
+                              * this always to simplify code sharing between
+                              * old and new syscall ABIs.
+                              */
+                             "mov   r7,%2\n"
+                             __syscall(exit)"\n"
+
+                             /* Pop r7 from the stack only in the parent.
+                              */
+                           "1: pop {r7}\n"
+                             : "=r" (__res)
+                             : "r"(__sysreg),
+                               "i"(__NR_exit), "r"(__stack), "r"(__flags),
+                               "r"(__ptid), "r"(__tls), "r"(__ctid)
+                             : "cc", "lr", "memory");
+      }
+      clone_exit:
+      LSS_RETURN(int, __res);
+    }
+  #elif defined(__mips__)
+    #undef LSS_REG
+    #define LSS_REG(r,a) register unsigned long __r##r __asm__("$"#r) =       \
+                                 (unsigned long)(a)
+
+    #if _MIPS_SIM == _MIPS_SIM_ABI32
+    // See http://sources.redhat.com/ml/libc-alpha/2004-10/msg00050.html
+    // or http://www.linux-mips.org/archives/linux-mips/2004-10/msg00142.html
+    #define MIPS_SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12",\
+                                "$13", "$14", "$15", "$24", "$25", "memory"
+    #else
+    #define MIPS_SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13",     \
+                                "$14", "$15", "$24", "$25", "memory"
+    #endif
+
+    #undef  LSS_BODY
+    #define LSS_BODY(type,name,r7,...)                                        \
+          register unsigned long __v0 __asm__("$2") = __NR_##name;            \
+          __asm__ __volatile__ ("syscall\n"                                   \
+                                : "=&r"(__v0), r7 (__r7)                      \
+                                : "0"(__v0), ##__VA_ARGS__                    \
+                                : MIPS_SYSCALL_CLOBBERS);                     \
+          LSS_RETURN(type, __v0, __r7)
+    #undef _syscall0
+    #define _syscall0(type, name)                                             \
+      type LSS_NAME(name)() {                                                 \
+        register unsigned long __r7 __asm__("$7");                            \
+        LSS_BODY(type, name, "=r");                                           \
+      }
+    #undef _syscall1
+    #define _syscall1(type, name, type1, arg1)                                \
+      type LSS_NAME(name)(type1 arg1) {                                       \
+        register unsigned long __r7 __asm__("$7");                            \
+        LSS_REG(4, arg1); LSS_BODY(type, name, "=r", "r"(__r4));              \
+      }
+    #undef _syscall2
+    #define _syscall2(type, name, type1, arg1, type2, arg2)                   \
+      type LSS_NAME(name)(type1 arg1, type2 arg2) {                           \
+        register unsigned long __r7 __asm__("$7");                            \
+        LSS_REG(4, arg1); LSS_REG(5, arg2);                                   \
+        LSS_BODY(type, name, "=r", "r"(__r4), "r"(__r5));                     \
+      }
+    #undef _syscall3
+    #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3)      \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) {               \
+        register unsigned long __r7 __asm__("$7");                            \
+        LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3);                 \
+        LSS_BODY(type, name, "=r", "r"(__r4), "r"(__r5), "r"(__r6));          \
+      }
+    #undef _syscall4
+    #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {   \
+        LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3);                 \
+        LSS_REG(7, arg4);                                                     \
+        LSS_BODY(type, name, "+r", "r"(__r4), "r"(__r5), "r"(__r6));          \
+      }
+    #undef _syscall5
+    #if _MIPS_SIM == _MIPS_SIM_ABI32
+    /* The old 32bit MIPS system call API passes the fifth and sixth argument
+     * on the stack, whereas the new APIs use registers "r8" and "r9".
+     */
+    #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5)                                             \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5) {                                       \
+        LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3);                 \
+        LSS_REG(7, arg4);                                                     \
+        register unsigned long __v0 __asm__("$2");                            \
+        __asm__ __volatile__ (".set noreorder\n"                              \
+                              "lw    $2, %6\n"                                \
+                              "subu  $29, 32\n"                               \
+                              "sw    $2, 16($29)\n"                           \
+                              "li    $2, %2\n"                                \
+                              "syscall\n"                                     \
+                              "addiu $29, 32\n"                               \
+                              ".set reorder\n"                                \
+                              : "=&r"(__v0), "+r" (__r7)                      \
+                              : "i" (__NR_##name), "r"(__r4), "r"(__r5),      \
+                                "r"(__r6), "m" ((unsigned long)arg5)          \
+                              : MIPS_SYSCALL_CLOBBERS);                       \
+        LSS_RETURN(type, __v0, __r7);                                         \
+      }
+    #else
+    #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5)                                             \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5) {                                       \
+        LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3);                 \
+        LSS_REG(7, arg4); LSS_REG(8, arg5);                                   \
+        LSS_BODY(type, name, "+r", "r"(__r4), "r"(__r5), "r"(__r6),           \
+                 "r"(__r8));                                                  \
+      }
+    #endif
+    #undef _syscall6
+    #if _MIPS_SIM == _MIPS_SIM_ABI32
+    /* The old 32bit MIPS system call API passes the fifth and sixth argument
+     * on the stack, whereas the new APIs use registers "r8" and "r9".
+     */
+    #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5,type6,arg6)                                  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5, type6 arg6) {                           \
+        LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3);                 \
+        LSS_REG(7, arg4);                                                     \
+        register unsigned long __v0 __asm__("$2");                            \
+        __asm__ __volatile__ (".set noreorder\n"                              \
+                              "lw    $2, %6\n"                                \
+                              "lw    $8, %7\n"                                \
+                              "subu  $29, 32\n"                               \
+                              "sw    $2, 16($29)\n"                           \
+                              "sw    $8, 20($29)\n"                           \
+                              "li    $2, %2\n"                                \
+                              "syscall\n"                                     \
+                              "addiu $29, 32\n"                               \
+                              ".set reorder\n"                                \
+                              : "=&r"(__v0), "+r" (__r7)                      \
+                              : "i" (__NR_##name), "r"(__r4), "r"(__r5),      \
+                                "r"(__r6), "m" ((unsigned long)arg5),         \
+                                "m" ((unsigned long)arg6)                     \
+                              : MIPS_SYSCALL_CLOBBERS);                       \
+        LSS_RETURN(type, __v0, __r7);                                         \
+      }
+    #else
+    #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5,type6,arg6)                                  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5,type6 arg6) {                            \
+        LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3);                 \
+        LSS_REG(7, arg4); LSS_REG(8, arg5); LSS_REG(9, arg6);                 \
+        LSS_BODY(type, name, "+r", "r"(__r4), "r"(__r5), "r"(__r6),           \
+                 "r"(__r8), "r"(__r9));                                       \
+      }
+    #endif
+    LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
+                                   int flags, void *arg, int *parent_tidptr,
+                                   void *newtls, int *child_tidptr) {
+      register unsigned long __v0 __asm__("$2");
+      register unsigned long __r7 __asm__("$7") = (unsigned long)newtls;
+      {
+        register int   __flags __asm__("$4") = flags;
+        register void *__stack __asm__("$5") = child_stack;
+        register void *__ptid  __asm__("$6") = parent_tidptr;
+        register int  *__ctid  __asm__("$8") = child_tidptr;
+        __asm__ __volatile__(
+          #if _MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZPTR == 32
+                             "subu  $29,24\n"
+          #elif _MIPS_SIM == _MIPS_SIM_NABI32
+                             "sub   $29,16\n"
+          #else
+                             "dsubu $29,16\n"
+          #endif
+
+                             /* if (fn == NULL || child_stack == NULL)
+                              *   return -EINVAL;
+                              */
+                             "li    %0,%2\n"
+                             "beqz  %5,1f\n"
+                             "beqz  %6,1f\n"
+
+                             /* Push "arg" and "fn" onto the stack that will be
+                              * used by the child.
+                              */
+          #if _MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZPTR == 32
+                             "subu  %6,32\n"
+                             "sw    %5,0(%6)\n"
+                             "sw    %8,4(%6)\n"
+          #elif _MIPS_SIM == _MIPS_SIM_NABI32
+                             "sub   %6,32\n"
+                             "sw    %5,0(%6)\n"
+                             "sw    %8,8(%6)\n"
+          #else
+                             "dsubu %6,32\n"
+                             "sd    %5,0(%6)\n"
+                             "sd    %8,8(%6)\n"
+          #endif
+
+                             /* $7 = syscall($4 = flags,
+                              *              $5 = child_stack,
+                              *              $6 = parent_tidptr,
+                              *              $7 = newtls,
+                              *              $8 = child_tidptr)
+                              */
+                             "li    $2,%3\n"
+                             "syscall\n"
+
+                             /* if ($7 != 0)
+                              *   return $2;
+                              */
+                             "bnez  $7,1f\n"
+                             "bnez  $2,1f\n"
+
+                             /* In the child, now. Call "fn(arg)".
+                              */
+          #if _MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZPTR == 32
+                            "lw    $25,0($29)\n"
+                            "lw    $4,4($29)\n"
+          #elif _MIPS_SIM == _MIPS_SIM_NABI32
+                            "lw    $25,0($29)\n"
+                            "lw    $4,8($29)\n"
+          #else
+                            "ld    $25,0($29)\n"
+                            "ld    $4,8($29)\n"
+          #endif
+                            "jalr  $25\n"
+
+                             /* Call _exit($2)
+                              */
+                            "move  $4,$2\n"
+                            "li    $2,%4\n"
+                            "syscall\n"
+
+                           "1:\n"
+          #if _MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZPTR == 32
+                             "addu  $29, 24\n"
+          #elif _MIPS_SIM == _MIPS_SIM_NABI32
+                             "add   $29, 16\n"
+          #else
+                             "daddu $29,16\n"
+          #endif
+                             : "=&r" (__v0), "=r" (__r7)
+                             : "i"(-EINVAL), "i"(__NR_clone), "i"(__NR_exit),
+                               "r"(fn), "r"(__stack), "r"(__flags), "r"(arg),
+                               "r"(__ptid), "r"(__r7), "r"(__ctid)
+                             : "$9", "$10", "$11", "$12", "$13", "$14", "$15",
+                               "$24", "memory");
+      }
+      LSS_RETURN(int, __v0, __r7);
+    }
+  #elif defined (__PPC__)
+    #undef  LSS_LOADARGS_0
+    #define LSS_LOADARGS_0(name, dummy...)                                    \
+        __sc_0 = __NR_##name
+    #undef  LSS_LOADARGS_1
+    #define LSS_LOADARGS_1(name, arg1)                                        \
+            LSS_LOADARGS_0(name);                                             \
+            __sc_3 = (unsigned long) (arg1)
+    #undef  LSS_LOADARGS_2
+    #define LSS_LOADARGS_2(name, arg1, arg2)                                  \
+            LSS_LOADARGS_1(name, arg1);                                       \
+            __sc_4 = (unsigned long) (arg2)
+    #undef  LSS_LOADARGS_3
+    #define LSS_LOADARGS_3(name, arg1, arg2, arg3)                            \
+            LSS_LOADARGS_2(name, arg1, arg2);                                 \
+            __sc_5 = (unsigned long) (arg3)
+    #undef  LSS_LOADARGS_4
+    #define LSS_LOADARGS_4(name, arg1, arg2, arg3, arg4)                      \
+            LSS_LOADARGS_3(name, arg1, arg2, arg3);                           \
+            __sc_6 = (unsigned long) (arg4)
+    #undef  LSS_LOADARGS_5
+    #define LSS_LOADARGS_5(name, arg1, arg2, arg3, arg4, arg5)                \
+            LSS_LOADARGS_4(name, arg1, arg2, arg3, arg4);                     \
+            __sc_7 = (unsigned long) (arg5)
+    #undef  LSS_LOADARGS_6
+    #define LSS_LOADARGS_6(name, arg1, arg2, arg3, arg4, arg5, arg6)          \
+            LSS_LOADARGS_5(name, arg1, arg2, arg3, arg4, arg5);               \
+            __sc_8 = (unsigned long) (arg6)
+    #undef  LSS_ASMINPUT_0
+    #define LSS_ASMINPUT_0 "0" (__sc_0)
+    #undef  LSS_ASMINPUT_1
+    #define LSS_ASMINPUT_1 LSS_ASMINPUT_0, "1" (__sc_3)
+    #undef  LSS_ASMINPUT_2
+    #define LSS_ASMINPUT_2 LSS_ASMINPUT_1, "2" (__sc_4)
+    #undef  LSS_ASMINPUT_3
+    #define LSS_ASMINPUT_3 LSS_ASMINPUT_2, "3" (__sc_5)
+    #undef  LSS_ASMINPUT_4
+    #define LSS_ASMINPUT_4 LSS_ASMINPUT_3, "4" (__sc_6)
+    #undef  LSS_ASMINPUT_5
+    #define LSS_ASMINPUT_5 LSS_ASMINPUT_4, "5" (__sc_7)
+    #undef  LSS_ASMINPUT_6
+    #define LSS_ASMINPUT_6 LSS_ASMINPUT_5, "6" (__sc_8)
+    #undef  LSS_BODY
+    #define LSS_BODY(nr, type, name, args...)                                 \
+        long __sc_ret, __sc_err;                                              \
+        {                                                                     \
+            register unsigned long __sc_0 __asm__ ("r0");                     \
+            register unsigned long __sc_3 __asm__ ("r3");                     \
+            register unsigned long __sc_4 __asm__ ("r4");                     \
+            register unsigned long __sc_5 __asm__ ("r5");                     \
+            register unsigned long __sc_6 __asm__ ("r6");                     \
+            register unsigned long __sc_7 __asm__ ("r7");                     \
+            register unsigned long __sc_8 __asm__ ("r8");                     \
+                                                                              \
+            LSS_LOADARGS_##nr(name, args);                                    \
+            __asm__ __volatile__                                              \
+                ("sc\n\t"                                                     \
+                 "mfcr %0"                                                    \
+                 : "=&r" (__sc_0),                                            \
+                   "=&r" (__sc_3), "=&r" (__sc_4),                            \
+                   "=&r" (__sc_5), "=&r" (__sc_6),                            \
+                   "=&r" (__sc_7), "=&r" (__sc_8)                             \
+                 : LSS_ASMINPUT_##nr                                          \
+                 : "cr0", "ctr", "memory",                                    \
+                   "r9", "r10", "r11", "r12");                                \
+            __sc_ret = __sc_3;                                                \
+            __sc_err = __sc_0;                                                \
+        }                                                                     \
+        LSS_RETURN(type, __sc_ret, __sc_err)
+    #undef _syscall0
+    #define _syscall0(type, name)                                             \
+       type LSS_NAME(name)(void) {                                            \
+          LSS_BODY(0, type, name);                                            \
+       }
+    #undef _syscall1
+    #define _syscall1(type, name, type1, arg1)                                \
+       type LSS_NAME(name)(type1 arg1) {                                      \
+          LSS_BODY(1, type, name, arg1);                                      \
+       }
+    #undef _syscall2
+    #define _syscall2(type, name, type1, arg1, type2, arg2)                   \
+       type LSS_NAME(name)(type1 arg1, type2 arg2) {                          \
+          LSS_BODY(2, type, name, arg1, arg2);                                \
+       }
+    #undef _syscall3
+    #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3)      \
+       type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) {              \
+          LSS_BODY(3, type, name, arg1, arg2, arg3);                          \
+       }
+    #undef _syscall4
+    #define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                                  type4, arg4)                                \
+       type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {  \
+          LSS_BODY(4, type, name, arg1, arg2, arg3, arg4);                    \
+       }
+    #undef _syscall5
+    #define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                                  type4, arg4, type5, arg5)                   \
+       type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,    \
+                                               type5 arg5) {                  \
+          LSS_BODY(5, type, name, arg1, arg2, arg3, arg4, arg5);              \
+       }
+    #undef _syscall6
+    #define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                                  type4, arg4, type5, arg5, type6, arg6)      \
+       type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,    \
+                                               type5 arg5, type6 arg6) {      \
+          LSS_BODY(6, type, name, arg1, arg2, arg3, arg4, arg5, arg6);        \
+       }
+    /* clone function adapted from glibc 2.18 clone.S                       */
+    LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
+                                   int flags, void *arg, int *parent_tidptr,
+                                   void *newtls, int *child_tidptr) {
+      long __ret, __err;
+      {
+#if defined(__PPC64__)
+
+/* Stack frame offsets.  */
+#if _CALL_ELF != 2
+#define FRAME_MIN_SIZE         112
+#define FRAME_TOC_SAVE         40
+#else
+#define FRAME_MIN_SIZE         32
+#define FRAME_TOC_SAVE         24
+#endif
+
+
+        register int (*__fn)(void *) __asm__ ("r3") = fn;
+        register void *__cstack      __asm__ ("r4") = child_stack;
+        register int __flags         __asm__ ("r5") = flags;
+        register void * __arg        __asm__ ("r6") = arg;
+        register int * __ptidptr     __asm__ ("r7") = parent_tidptr;
+        register void * __newtls     __asm__ ("r8") = newtls;
+        register int * __ctidptr     __asm__ ("r9") = child_tidptr;
+        __asm__ __volatile__(
+            /* check for fn == NULL
+             * and child_stack == NULL
+             */
+            "cmpdi cr0, %6, 0\n\t"
+            "cmpdi cr1, %7, 0\n\t"
+            "cror  cr0*4+eq, cr1*4+eq, cr0*4+eq\n\t"
+            "beq-  cr0, 1f\n\t"
+
+            /* set up stack frame for child                                  */
+            "clrrdi %7, %7, 4\n\t"
+            "li     0, 0\n\t"
+            "stdu   0, -%13(%7)\n\t"
+
+            /* fn, arg, child_stack are saved acrVoss the syscall             */
+            "mr 28, %6\n\t"
+            "mr 29, %7\n\t"
+            "mr 27, %9\n\t"
+
+            /* syscall
+               r3 == flags
+               r4 == child_stack
+               r5 == parent_tidptr
+               r6 == newtls
+               r7 == child_tidptr                                            */
+            "mr 3, %8\n\t"
+            "mr 5, %10\n\t"
+            "mr 6, %11\n\t"
+            "mr 7, %12\n\t"
+	    "li	0, %4\n\t"
+            "sc\n\t"
+
+            /* Test if syscall was successful                                */
+            "cmpdi  cr1, 3, 0\n\t"
+            "crandc cr1*4+eq, cr1*4+eq, cr0*4+so\n\t"
+            "bne-   cr1, 1f\n\t"
+
+            /* Do the function call                                          */
+            "std   2, %14(1)\n\t"
+#if _CALL_ELF != 2
+	    "ld    0, 0(28)\n\t"
+	    "ld    2, 8(28)\n\t"
+            "mtctr 0\n\t"
+#else
+            "mr    12, 28\n\t"
+            "mtctr 12\n\t"
+#endif
+            "mr    3, 27\n\t"
+            "bctrl\n\t"
+	    "ld    2, %14(1)\n\t"
+
+            /* Call _exit(r3)                                                */
+            "li 0, %5\n\t"
+            "sc\n\t"
+
+            /* Return to parent                                              */
+	    "1:\n\t"
+            "mr %0, 3\n\t"
+              : "=r" (__ret), "=r" (__err)
+              : "0" (-1), "i" (EINVAL),
+                "i" (__NR_clone), "i" (__NR_exit),
+                "r" (__fn), "r" (__cstack), "r" (__flags),
+                "r" (__arg), "r" (__ptidptr), "r" (__newtls),
+                "r" (__ctidptr), "i" (FRAME_MIN_SIZE), "i" (FRAME_TOC_SAVE)
+              : "cr0", "cr1", "memory", "ctr",
+                "r0", "r29", "r27", "r28");
+#else
+        register int (*__fn)(void *)    __asm__ ("r8")  = fn;
+        register void *__cstack                 __asm__ ("r4")  = child_stack;
+        register int __flags                    __asm__ ("r3")  = flags;
+        register void * __arg                   __asm__ ("r9")  = arg;
+        register int * __ptidptr                __asm__ ("r5")  = parent_tidptr;
+        register void * __newtls                __asm__ ("r6")  = newtls;
+        register int * __ctidptr                __asm__ ("r7")  = child_tidptr;
+        __asm__ __volatile__(
+            /* check for fn == NULL
+             * and child_stack == NULL
+             */
+            "cmpwi cr0, %6, 0\n\t"
+            "cmpwi cr1, %7, 0\n\t"
+            "cror cr0*4+eq, cr1*4+eq, cr0*4+eq\n\t"
+            "beq- cr0, 1f\n\t"
+
+            /* set up stack frame for child                                  */
+            "clrrwi %7, %7, 4\n\t"
+            "li 0, 0\n\t"
+            "stwu 0, -16(%7)\n\t"
+
+            /* fn, arg, child_stack are saved across the syscall: r28-30     */
+            "mr 28, %6\n\t"
+            "mr 29, %7\n\t"
+            "mr 27, %9\n\t"
+
+            /* syscall                                                       */
+            "li 0, %4\n\t"
+            /* flags already in r3
+             * child_stack already in r4
+             * ptidptr already in r5
+             * newtls already in r6
+             * ctidptr already in r7
+             */
+            "sc\n\t"
+
+            /* Test if syscall was successful                                */
+            "cmpwi cr1, 3, 0\n\t"
+            "crandc cr1*4+eq, cr1*4+eq, cr0*4+so\n\t"
+            "bne- cr1, 1f\n\t"
+
+            /* Do the function call                                          */
+            "mtctr 28\n\t"
+            "mr 3, 27\n\t"
+            "bctrl\n\t"
+
+            /* Call _exit(r3)                                                */
+            "li 0, %5\n\t"
+            "sc\n\t"
+
+            /* Return to parent                                              */
+            "1:\n"
+            "mfcr %1\n\t"
+            "mr %0, 3\n\t"
+              : "=r" (__ret), "=r" (__err)
+              : "0" (-1), "1" (EINVAL),
+                "i" (__NR_clone), "i" (__NR_exit),
+                "r" (__fn), "r" (__cstack), "r" (__flags),
+                "r" (__arg), "r" (__ptidptr), "r" (__newtls),
+                "r" (__ctidptr)
+              : "cr0", "cr1", "memory", "ctr",
+                "r0", "r29", "r27", "r28");
+
+#endif
+      }
+      LSS_RETURN(int, __ret, __err);
+    }
+  #elif defined(__aarch64__)
+    #undef LSS_REG
+    #define LSS_REG(r,a) register long __x##r __asm__("x"#r) = (long)a
+    #undef  LSS_BODY
+    #define LSS_BODY(type,name,args...)                                       \
+          register long __res_x0 __asm__("x0");                               \
+          long __res;                                                         \
+          __asm__ __volatile__ ("mov x8, %1\n"                                \
+                                "svc 0x0\n"                                   \
+                                : "=r"(__res_x0)                              \
+                                : "i"(__NR_##name) , ## args                  \
+                                : "x8", "memory");                            \
+          __res = __res_x0;                                                   \
+          LSS_RETURN(type, __res)
+    #undef _syscall0
+    #define _syscall0(type, name)                                             \
+      type LSS_NAME(name)(void) {                                             \
+        LSS_BODY(type, name);                                                 \
+      }
+    #undef _syscall1
+    #define _syscall1(type, name, type1, arg1)                                \
+      type LSS_NAME(name)(type1 arg1) {                                       \
+        LSS_REG(0, arg1); LSS_BODY(type, name, "r"(__x0));                    \
+      }
+    #undef _syscall2
+    #define _syscall2_long(type, name, svc, type1, arg1, type2, arg2)         \
+      type LSS_NAME(name)(type1 arg1, type2 arg2) {                           \
+        LSS_REG(0, arg1); LSS_REG(1, arg2);                                   \
+        LSS_BODY(type, svc, "r"(__x0), "r"(__x1));                            \
+      }
+    #define _syscall2(type, name, type1, arg1, type2, arg2)                   \
+            _syscall2_long(type, name, name, type1, arg1, type2, arg2)
+    #undef _syscall3
+    #define _syscall3_long(type, name, svc, type1, arg1, type2, arg2,         \
+                           type3, arg3)                                       \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) {               \
+        LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3);                 \
+        LSS_BODY(type, svc, "r"(__x0), "r"(__x1), "r"(__x2));                 \
+      }
+    #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3)      \
+            _syscall3_long(type, name, name, type1, arg1, type2, arg2,        \
+                           type3, arg3)
+    #undef _syscall4
+    #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {   \
+        LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3);                 \
+        LSS_REG(3, arg4);                                                     \
+        LSS_BODY(type, name, "r"(__x0), "r"(__x1), "r"(__x2), "r"(__x3));     \
+      }
+    #undef _syscall5
+    #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5)                                             \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5) {                                       \
+        LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3);                 \
+        LSS_REG(3, arg4); LSS_REG(4, arg5);                                   \
+        LSS_BODY(type, name, "r"(__x0), "r"(__x1), "r"(__x2), "r"(__x3),      \
+                             "r"(__x4));                                      \
+      }
+    #undef _syscall6
+    #define _syscall6_long(type,name,svc,type1,arg1,type2,arg2,type3,arg3,    \
+                           type4,arg4,type5,arg5,type6,arg6)                  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5, type6 arg6) {                           \
+        LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3);                 \
+        LSS_REG(3, arg4); LSS_REG(4, arg5); LSS_REG(5, arg6);                 \
+        LSS_BODY(type, svc, "r"(__x0), "r"(__x1), "x"(__x2), "r"(__x3),       \
+                             "r"(__x4), "r"(__x5));                           \
+      }
+    #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5,type6,arg6)                                  \
+            _syscall6_long(type,name,name,type1,arg1,type2,arg2,type3,arg3,   \
+                           type4,arg4,type5,arg5,type6,arg6)
+    /* clone function adapted from glibc 2.18 clone.S                       */
+    LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
+                                   int flags, void *arg, int *parent_tidptr,
+                                   void *newtls, int *child_tidptr) {
+      long __res;
+      {
+        register int (*__fn)(void *)  __asm__("x0") = fn;
+        register void *__stack __asm__("x1") = child_stack;
+        register int   __flags __asm__("x2") = flags;
+        register void *__arg   __asm__("x3") = arg;
+        register int  *__ptid  __asm__("x4") = parent_tidptr;
+        register void *__tls   __asm__("x5") = newtls;
+        register int  *__ctid  __asm__("x6") = child_tidptr;
+        __asm__ __volatile__(/* if (fn == NULL || child_stack == NULL)
+                              *   return -EINVAL;
+                              */
+                             "cbz     x0,1f\n"
+                             "cbz     x1,1f\n"
+
+                             /* Push "arg" and "fn" onto the stack that will be
+                              * used by the child.
+                              */
+                             "stp x0,x3, [x1, #-16]!\n"
+
+                             "mov x0,x2\n" /* flags  */
+                             "mov x2,x4\n" /* ptid  */
+                             "mov x3,x5\n" /* tls */
+                             "mov x4,x6\n" /* ctid */
+                             "mov x8,%9\n" /* clone */
+
+                             "svc 0x0\n"
+
+                             /* if (%r0 != 0)
+                              *   return %r0;
+                              */
+                             "cmp x0, #0\n"
+                             "bne 2f\n"
+
+                             /* In the child, now. Call "fn(arg)".
+                              */
+                             "ldp x1, x0, [sp], #16\n"
+                             "blr x1\n"
+
+                             /* Call _exit(%r0).
+                              */
+                             "mov x8, %10\n"
+                             "svc 0x0\n"
+                           "1:\n"
+                             "mov x8, %1\n"
+                           "2:\n"
+                             : "=r" (__res)
+                             : "i"(-EINVAL),
+                               "r"(__fn), "r"(__stack), "r"(__flags), "r"(__arg),
+                               "r"(__ptid), "r"(__tls), "r"(__ctid),
+                               "i"(__NR_clone), "i"(__NR_exit)
+                             : "x8", "x30", "memory");
+      }
+      LSS_RETURN(int, __res);
+    }
+  #elif defined(__s390__)
+    #undef  LSS_REG
+    #define LSS_REG(r, a) register unsigned long __r##r __asm__("r"#r) = (unsigned long) a
+    #undef  LSS_BODY
+    #define LSS_BODY(type, name, args...)                                     \
+        register unsigned long __nr __asm__("r1")                             \
+            = (unsigned long)(__NR_##name);                                   \
+        register long __res_r2 __asm__("r2");                                 \
+        long __res;                                                           \
+        __asm__ __volatile__                                                  \
+            ("svc 0\n\t"                                                      \
+             : "=d"(__res_r2)                                                 \
+             : "d"(__nr), ## args                                             \
+             : "memory");                                                     \
+        __res = __res_r2;                                                     \
+        LSS_RETURN(type, __res)
+    #undef _syscall0
+    #define _syscall0(type, name)                                             \
+       type LSS_NAME(name)(void) {                                            \
+          LSS_BODY(type, name);                                               \
+       }
+    #undef _syscall1
+    #define _syscall1(type, name, type1, arg1)                                \
+       type LSS_NAME(name)(type1 arg1) {                                      \
+          LSS_REG(2, arg1);                                                   \
+          LSS_BODY(type, name, "0"(__r2));                                    \
+       }
+    #undef _syscall2
+    #define _syscall2(type, name, type1, arg1, type2, arg2)                   \
+       type LSS_NAME(name)(type1 arg1, type2 arg2) {                          \
+          LSS_REG(2, arg1); LSS_REG(3, arg2);                                 \
+          LSS_BODY(type, name, "0"(__r2), "d"(__r3));                         \
+       }
+    #undef _syscall3
+    #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3)      \
+       type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) {              \
+          LSS_REG(2, arg1); LSS_REG(3, arg2); LSS_REG(4, arg3);               \
+          LSS_BODY(type, name, "0"(__r2), "d"(__r3), "d"(__r4));              \
+       }
+    #undef _syscall4
+    #define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                                  type4, arg4)                                \
+       type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3,                \
+                           type4 arg4) {                                      \
+          LSS_REG(2, arg1); LSS_REG(3, arg2); LSS_REG(4, arg3);               \
+          LSS_REG(5, arg4);                                                   \
+          LSS_BODY(type, name, "0"(__r2), "d"(__r3), "d"(__r4),               \
+                               "d"(__r5));                                    \
+       }
+    #undef _syscall5
+    #define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                                  type4, arg4, type5, arg5)                   \
+       type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3,                \
+                           type4 arg4, type5 arg5) {                          \
+          LSS_REG(2, arg1); LSS_REG(3, arg2); LSS_REG(4, arg3);               \
+          LSS_REG(5, arg4); LSS_REG(6, arg5);                                 \
+          LSS_BODY(type, name, "0"(__r2), "d"(__r3), "d"(__r4),               \
+                               "d"(__r5), "d"(__r6));                         \
+       }
+    #undef _syscall6
+    #define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                                  type4, arg4, type5, arg5, type6, arg6)      \
+       type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3,                \
+                           type4 arg4, type5 arg5, type6 arg6) {              \
+          LSS_REG(2, arg1); LSS_REG(3, arg2); LSS_REG(4, arg3);               \
+          LSS_REG(5, arg4); LSS_REG(6, arg5); LSS_REG(7, arg6);               \
+          LSS_BODY(type, name, "0"(__r2), "d"(__r3), "d"(__r4),               \
+                               "d"(__r5), "d"(__r6), "d"(__r7));              \
+       }
+    LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack,
+                                   int flags, void *arg, int *parent_tidptr,
+                                   void *newtls, int *child_tidptr) {
+      long __ret;
+      {
+        register int  (*__fn)(void *)    __asm__ ("r1")  = fn;
+        register void  *__cstack         __asm__ ("r2")  = child_stack;
+        register int    __flags          __asm__ ("r3")  = flags;
+        register void  *__arg            __asm__ ("r0")  = arg;
+        register int   *__ptidptr        __asm__ ("r4")  = parent_tidptr;
+        register void  *__newtls         __asm__ ("r6")  = newtls;
+        register int   *__ctidptr        __asm__ ("r5")  = child_tidptr;
+        __asm__ __volatile__ (
+    #ifndef __s390x__
+                                  /* arg already in r0 */
+          "ltr %4, %4\n\t"        /* check fn, which is already in r1 */
+          "jz 1f\n\t"             /* NULL function pointer, return -EINVAL */
+          "ltr %5, %5\n\t"        /* check child_stack, which is already in r2 */
+          "jz 1f\n\t"             /* NULL stack pointer, return -EINVAL */
+                                  /* flags already in r3 */
+                                  /* parent_tidptr already in r4 */
+                                  /* child_tidptr already in r5 */
+                                  /* newtls already in r6 */
+          "svc %2\n\t"            /* invoke clone syscall */
+          "ltr %0,%%r2\n\t"       /* load return code into __ret and test */
+          "jnz 1f\n\t"            /* return to parent if non-zero */
+                                  /* start child thread */
+          "lr %%r2, %7\n\t"       /* set first parameter to void *arg */
+          "ahi %%r15, -96\n\t"    /* make room on the stack for the save area */
+          "xc 0(4,%%r15), 0(%%r15)\n\t"
+          "basr %%r14, %4\n\t"    /* jump to fn */
+          "svc %3\n"              /* invoke exit syscall */
+          "1:\n"
+    #else
+                                  /* arg already in r0 */
+          "ltgr %4, %4\n\t"       /* check fn, which is already in r1 */
+          "jz 1f\n\t"             /* NULL function pointer, return -EINVAL */
+          "ltgr %5, %5\n\t"       /* check child_stack, which is already in r2 */
+          "jz 1f\n\t"             /* NULL stack pointer, return -EINVAL */
+                                  /* flags already in r3 */
+                                  /* parent_tidptr already in r4 */
+                                  /* child_tidptr already in r5 */
+                                  /* newtls already in r6 */
+          "svc %2\n\t"            /* invoke clone syscall */
+          "ltgr %0, %%r2\n\t"     /* load return code into __ret and test */
+          "jnz 1f\n\t"            /* return to parent if non-zero */
+                                  /* start child thread */
+          "lgr %%r2, %7\n\t"      /* set first parameter to void *arg */
+          "aghi %%r15, -160\n\t"  /* make room on the stack for the save area */
+          "xc 0(8,%%r15), 0(%%r15)\n\t"
+          "basr %%r14, %4\n\t"    /* jump to fn */
+          "svc %3\n"              /* invoke exit syscall */
+          "1:\n"
+    #endif
+          : "=r" (__ret)
+          : "0" (-EINVAL), "i" (__NR_clone), "i" (__NR_exit),
+            "d" (__fn), "d" (__cstack), "d" (__flags), "d" (__arg),
+            "d" (__ptidptr), "d" (__newtls), "d" (__ctidptr)
+          : "cc", "r14", "memory"
+        );
+      }
+      LSS_RETURN(int, __ret);
+    }
+  #elif defined(__riscv)
+    #undef LSS_REG
+    #define LSS_REG(r,a) register long __a##r __asm__("a"#r) =       \
+                                 (long)(a)
+
+    #undef  LSS_BODY
+    #define LSS_BODY(type, name, args...)                                     \
+          register long __a7 __asm__("a7") = __NR_##name;                     \
+          long __res;                                                         \
+          __asm__ __volatile__ (                                              \
+                                "scall\n\t"                                   \
+                                : "+r" (__a0)                                 \
+                                : "r" (__a7), ##args                          \
+                                : "memory");                                  \
+          __res = __a0;                                                       \
+          LSS_RETURN(type, __res)
+    #undef _syscall0
+    #define _syscall0(type,name)                                              \
+      type LSS_NAME(name)() {                                                 \
+          register long __a7 __asm__("a7") = __NR_##name;                     \
+          register long __a0 __asm__("a0");                                   \
+          long __res;                                                         \
+          __asm__ __volatile__ (                                              \
+                                "scall\n\t"                                   \
+                                : "=r" (__a0)                                 \
+                                : "r" (__a7)                                  \
+                                : "memory");                                  \
+          __res = __a0;                                                       \
+          LSS_RETURN(type, __res);                                            \
+      }
+    #undef _syscall1
+    #define _syscall1(type, name, type1, arg1)                                \
+      type LSS_NAME(name)(type1 arg1) {                                       \
+        /* There is no need for using a volatile temp.  */                    \
+        LSS_REG(0, arg1);                                                     \
+        LSS_BODY(type, name);                                                 \
+      }
+    #undef _syscall2
+    #define _syscall2(type, name, type1, arg1, type2, arg2)                   \
+      type LSS_NAME(name)(type1 arg1, type2 arg2) {                           \
+        LSS_REG(0, arg1);                                                     \
+        LSS_REG(1, arg2);                                                     \
+        LSS_BODY(type, name, "r"(__a1));                                      \
+      }
+    #undef _syscall3
+    #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3)      \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) {               \
+        LSS_REG(0, arg1);                                                     \
+        LSS_REG(1, arg2);                                                     \
+        LSS_REG(2, arg3);                                                     \
+        LSS_BODY(type, name, "r"(__a1), "r"(__a2));                           \
+      }
+    #undef _syscall4
+    #define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3,      \
+                      type4, arg4)                                            \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {   \
+        LSS_REG(0, arg1);                                                     \
+        LSS_REG(1, arg2);                                                     \
+        LSS_REG(2, arg3);                                                     \
+        LSS_REG(3, arg4);                                                     \
+        LSS_BODY(type, name, "r"(__a1), "r"(__a2), "r"(__a3));                \
+      }
+    #undef _syscall5
+    #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5)                                             \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5) {                                       \
+        LSS_REG(0, arg1);                                                     \
+        LSS_REG(1, arg2);                                                     \
+        LSS_REG(2, arg3);                                                     \
+        LSS_REG(3, arg4);                                                     \
+        LSS_REG(4, arg5);                                                     \
+        LSS_BODY(type, name, "r"(__a1), "r"(__a2), "r"(__a3), "r"(__a4));     \
+      }
+    #undef _syscall6
+    #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,  \
+                      type5,arg5,type6,arg6)                                  \
+      type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4,     \
+                          type5 arg5, type6 arg6) {                           \
+        LSS_REG(0, arg1);                                                     \
+        LSS_REG(1, arg2);                                                     \
+        LSS_REG(2, arg3);                                                     \
+        LSS_REG(3, arg4);                                                     \
+        LSS_REG(4, arg5);                                                     \
+        LSS_REG(5, arg6);                                                     \
+        LSS_BODY(type, name, "r"(__a1), "r"(__a2), "r"(__a3), "r"(__a4),      \
+                             "r"(__a5));                                      \
+      }
+  #endif
+  #define __NR__exit   __NR_exit
+  #define __NR__gettid __NR_gettid
+  #define __NR__mremap __NR_mremap
+  LSS_INLINE _syscall1(int,     close,           int,         f)
+  LSS_INLINE _syscall1(int,     _exit,           int,         e)
+#if defined(__aarch64__) && defined (__ILP32__)
+  /* aarch64_ilp32 uses fcntl64 for sys_fcntl() */
+  LSS_INLINE _syscall3_long(int,     fcntl,      fcntl64,     int,         f,
+                       int,            c, long,   a)
+#else
+  LSS_INLINE _syscall3(int,     fcntl,           int,         f,
+                       int,            c, long,   a)
+#endif
+#if defined(__aarch64__) && defined (__ILP32__)
+  /* aarch64_ilp32 uses fstat64 for sys_fstat() */
+  LSS_INLINE _syscall2_long(int,     fstat,       fstat64,    int,         f,
+                      struct kernel_stat*,   b)
+#else
+  LSS_INLINE _syscall2(int,     fstat,           int,         f,
+                      struct kernel_stat*,   b)
+#endif
+  LSS_INLINE _syscall6(int,     futex,           int*,        a,
+                       int,            o, int,    v,
+                      struct kernel_timespec*, t,
+                       int*, a2,
+                       int, v3)
+#ifdef __NR_getdents64
+    LSS_INLINE _syscall3(int,     getdents64,      int,         f,
+                         struct kernel_dirent64*, d, int,    c)
+#define KERNEL_DIRENT kernel_dirent64
+#define GETDENTS sys_getdents64
+#else
+    LSS_INLINE _syscall3(int,     getdents,        int,         f,
+                         struct kernel_dirent*, d, int,    c)
+#define KERNEL_DIRENT kernel_dirent
+#define GETDENTS sys_getdents
+#endif
+  LSS_INLINE _syscall0(pid_t,   getpid)
+  LSS_INLINE _syscall0(pid_t,   getppid)
+  LSS_INLINE _syscall0(pid_t,   _gettid)
+  LSS_INLINE _syscall2(int,     kill,            pid_t,       p,
+                       int,            s)
+  #if defined(__x86_64__)
+    /* Need to make sure off_t isn't truncated to 32-bits under x32.  */
+    LSS_INLINE off_t LSS_NAME(lseek)(int f, off_t o, int w) {
+      _LSS_BODY(3, off_t, lseek, off_t, LSS_SYSCALL_ARG(f), (uint64_t)(o),
+                                        LSS_SYSCALL_ARG(w));
+    }
+  #elif defined(__aarch64__) && defined (__ILP32__)
+    /* aarch64_ilp32 uses llseek for sys_lseek() */
+    LSS_INLINE _syscall3_long(off_t,   lseek,       llseek,    int,         f,
+                         off_t,          o, int,    w)
+  #else
+    LSS_INLINE _syscall3(off_t,   lseek,           int,         f,
+                         off_t,          o, int,    w)
+  #endif
+  LSS_INLINE _syscall2(int,     munmap,          void*,       s,
+                       size_t,         l)
+  LSS_INLINE _syscall5(void*,   _mremap,         void*,       o,
+                       size_t,         os,       size_t,      ns,
+                       unsigned long,  f, void *, a)
+  LSS_INLINE _syscall2(int,     prctl,           int,         o,
+                       long,           a)
+  LSS_INLINE _syscall4(long,    ptrace,          int,         r,
+                       pid_t,          p, void *, a, void *, d)
+  LSS_INLINE _syscall3(ssize_t, read,            int,         f,
+                       void *,         b, size_t, c)
+  LSS_INLINE _syscall4(int,     rt_sigaction,    int,         s,
+                       const struct kernel_sigaction*, a,
+                       struct kernel_sigaction*, o, size_t,   c)
+  LSS_INLINE _syscall4(int, rt_sigprocmask,      int,         h,
+                       const struct kernel_sigset_t*,  s,
+                       struct kernel_sigset_t*,        o, size_t, c);
+  LSS_INLINE _syscall0(int,     sched_yield)
+  LSS_INLINE _syscall2(int,     sigaltstack,     const stack_t*, s,
+                       const stack_t*, o)
+  #if defined(__NR_fstatat)
+    LSS_INLINE _syscall4(int, fstatat, int, d, const char *, p,
+                         struct kernel_stat*,   b, int, flags)
+    LSS_INLINE int LSS_NAME(stat)(const char* p, struct kernel_stat* b) {
+      return LSS_NAME(fstatat)(AT_FDCWD,p,b,0);
+  }
+  #else
+    LSS_INLINE _syscall2(int,     stat,            const char*, f,
+                         struct kernel_stat*,   b)
+  #endif
+  LSS_INLINE _syscall3(ssize_t, write,            int,        f,
+                       const void *,   b, size_t, c)
+  #if defined(__NR_getcpu)
+    LSS_INLINE _syscall3(long, getcpu, unsigned *, cpu,
+                         unsigned *, node, void *, unused);
+  #endif
+  #if defined(__x86_64__) || defined(__aarch64__) || \
+     (defined(__mips__) && _MIPS_SIM != _MIPS_SIM_ABI32)
+    LSS_INLINE _syscall3(int, socket,             int,   d,
+                         int,                     t, int,       p)
+  #endif
+  #if defined(__x86_64__) || defined(__s390x__)
+    LSS_INLINE int LSS_NAME(sigaction)(int signum,
+                                       const struct kernel_sigaction *act,
+                                       struct kernel_sigaction *oldact) {
+      #if defined(__x86_64__)
+      /* On x86_64, the kernel requires us to always set our own
+       * SA_RESTORER in order to be able to return from a signal handler.
+       * This function must have a "magic" signature that the "gdb"
+       * (and maybe the kernel?) can recognize.
+       */
+      if (act != NULL && !(act->sa_flags & SA_RESTORER)) {
+        struct kernel_sigaction a = *act;
+        a.sa_flags   |= SA_RESTORER;
+        a.sa_restorer = LSS_NAME(restore_rt)();
+        return LSS_NAME(rt_sigaction)(signum, &a, oldact,
+                                      (KERNEL_NSIG+7)/8);
+      } else
+      #endif
+        return LSS_NAME(rt_sigaction)(signum, act, oldact,
+                                      (KERNEL_NSIG+7)/8);
+    }
+
+    LSS_INLINE int LSS_NAME(sigprocmask)(int how,
+                                         const struct kernel_sigset_t *set,
+                                         struct kernel_sigset_t *oldset) {
+      return LSS_NAME(rt_sigprocmask)(how, set, oldset, (KERNEL_NSIG+7)/8);
+    }
+  #endif
+  #if (defined(__aarch64__)) || \
+      (defined(__mips__) \
+       && (_MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32))
+    LSS_INLINE int LSS_NAME(sigaction)(int signum,
+                                       const struct kernel_sigaction *act,
+                                       struct kernel_sigaction *oldact) {
+        return LSS_NAME(rt_sigaction)(signum, act, oldact, (KERNEL_NSIG+7)/8);
+
+    }
+    LSS_INLINE int LSS_NAME(sigprocmask)(int how,
+                                         const struct kernel_sigset_t *set,
+                                         struct kernel_sigset_t *oldset) {
+      return LSS_NAME(rt_sigprocmask)(how, set, oldset, (KERNEL_NSIG+7)/8);
+    }
+  #endif
+  #ifdef __NR_wait4
+    LSS_INLINE _syscall4(pid_t, wait4,            pid_t, p,
+                         int*,                    s, int,       o,
+                         struct kernel_rusage*,   r)
+    LSS_INLINE pid_t LSS_NAME(waitpid)(pid_t pid, int *status, int options){
+      return LSS_NAME(wait4)(pid, status, options, 0);
+    }
+  #else
+    LSS_INLINE _syscall3(pid_t, waitpid,          pid_t, p,
+                         int*,              s,    int,   o)
+  #endif
+  #ifdef __NR_openat
+    LSS_INLINE _syscall4(int, openat, int, d, const char *, p, int, f, int, m)
+    LSS_INLINE int LSS_NAME(open)(const char* p, int f, int m) {
+      return LSS_NAME(openat)(AT_FDCWD,p,f,m );
+    }
+  #else
+  LSS_INLINE _syscall3(int,     open,            const char*, p,
+                       int,            f, int,    m)
+  #endif
+  LSS_INLINE int LSS_NAME(sigemptyset)(struct kernel_sigset_t *set) {
+    memset(&set->sig, 0, sizeof(set->sig));
+    return 0;
+  }
+
+  LSS_INLINE int LSS_NAME(sigfillset)(struct kernel_sigset_t *set) {
+    memset(&set->sig, -1, sizeof(set->sig));
+    return 0;
+  }
+
+  LSS_INLINE int LSS_NAME(sigaddset)(struct kernel_sigset_t *set,
+                                     int signum) {
+    if (signum < 1 || signum > (int)(8*sizeof(set->sig))) {
+      LSS_ERRNO = EINVAL;
+      return -1;
+    } else {
+      set->sig[(signum - 1)/(8*sizeof(set->sig[0]))]
+          |= 1UL << ((signum - 1) % (8*sizeof(set->sig[0])));
+      return 0;
+    }
+  }
+
+  LSS_INLINE int LSS_NAME(sigdelset)(struct kernel_sigset_t *set,
+                                        int signum) {
+    if (signum < 1 || signum > (int)(8*sizeof(set->sig))) {
+      LSS_ERRNO = EINVAL;
+      return -1;
+    } else {
+      set->sig[(signum - 1)/(8*sizeof(set->sig[0]))]
+          &= ~(1UL << ((signum - 1) % (8*sizeof(set->sig[0]))));
+      return 0;
+    }
+  }
+
+  #if defined(__i386__) ||                                                    \
+      defined(__arm__) ||                                                     \
+     (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) ||                   \
+      defined(__PPC__) ||                                                     \
+     (defined(__s390__) && !defined(__s390x__))
+    #define __NR__sigaction   __NR_sigaction
+    #define __NR__sigprocmask __NR_sigprocmask
+    LSS_INLINE _syscall2(int, fstat64,             int, f,
+                         struct kernel_stat64 *, b)
+    LSS_INLINE _syscall5(int, _llseek,     uint, fd, ulong, hi, ulong, lo,
+                         loff_t *, res, uint, wh)
+#if defined(__s390__) && !defined(__s390x__)
+    /* On s390, mmap2() arguments are passed in memory. */
+    LSS_INLINE void* LSS_NAME(_mmap2)(void *s, size_t l, int p, int f, int d,
+                                      off_t o) {
+      unsigned long buf[6] = { (unsigned long) s, (unsigned long) l,
+                               (unsigned long) p, (unsigned long) f,
+                               (unsigned long) d, (unsigned long) o };
+      LSS_REG(2, buf);
+      LSS_BODY(void*, mmap2, "0"(__r2));
+    }
+#elif !defined(__PPC64__)
+    #define __NR__mmap2 __NR_mmap2
+    LSS_INLINE _syscall6(void*, _mmap2,            void*, s,
+                         size_t,                   l, int,               p,
+                         int,                      f, int,               d,
+                         off_t,                    o)
+#endif
+    LSS_INLINE _syscall3(int,   _sigaction,        int,   s,
+                         const struct kernel_old_sigaction*,  a,
+                         struct kernel_old_sigaction*,        o)
+    LSS_INLINE _syscall3(int,   _sigprocmask,      int,   h,
+                         const unsigned long*,     s,
+                         unsigned long*,           o)
+    LSS_INLINE _syscall2(int, stat64,              const char *, p,
+                         struct kernel_stat64 *, b)
+
+    LSS_INLINE int LSS_NAME(sigaction)(int signum,
+                                       const struct kernel_sigaction *act,
+                                       struct kernel_sigaction *oldact) {
+      int old_errno = LSS_ERRNO;
+      int rc;
+      struct kernel_sigaction a;
+      if (act != NULL) {
+        a             = *act;
+        #ifdef __i386__
+        /* On i386, the kernel requires us to always set our own
+         * SA_RESTORER when using realtime signals. Otherwise, it does not
+         * know how to return from a signal handler. This function must have
+         * a "magic" signature that the "gdb" (and maybe the kernel?) can
+         * recognize.
+         * Apparently, a SA_RESTORER is implicitly set by the kernel, when
+         * using non-realtime signals.
+         *
+         * TODO: Test whether ARM needs a restorer
+         */
+        if (!(a.sa_flags & SA_RESTORER)) {
+          a.sa_flags   |= SA_RESTORER;
+          a.sa_restorer = (a.sa_flags & SA_SIGINFO)
+                          ? LSS_NAME(restore_rt)() : LSS_NAME(restore)();
+        }
+        #endif
+      }
+      rc = LSS_NAME(rt_sigaction)(signum, act ? &a : act, oldact,
+                                  (KERNEL_NSIG+7)/8);
+      if (rc < 0 && LSS_ERRNO == ENOSYS) {
+        struct kernel_old_sigaction oa, ooa, *ptr_a = &oa, *ptr_oa = &ooa;
+        if (!act) {
+          ptr_a            = NULL;
+        } else {
+          oa.sa_handler_   = act->sa_handler_;
+          memcpy(&oa.sa_mask, &act->sa_mask, sizeof(oa.sa_mask));
+          #ifndef __mips__
+          oa.sa_restorer   = act->sa_restorer;
+          #endif
+          oa.sa_flags      = act->sa_flags;
+        }
+        if (!oldact) {
+          ptr_oa           = NULL;
+        }
+        LSS_ERRNO = old_errno;
+        rc = LSS_NAME(_sigaction)(signum, ptr_a, ptr_oa);
+        if (rc == 0 && oldact) {
+          if (act) {
+            memcpy(oldact, act, sizeof(*act));
+          } else {
+            memset(oldact, 0, sizeof(*oldact));
+          }
+          oldact->sa_handler_    = ptr_oa->sa_handler_;
+          oldact->sa_flags       = ptr_oa->sa_flags;
+          memcpy(&oldact->sa_mask, &ptr_oa->sa_mask, sizeof(ptr_oa->sa_mask));
+          #ifndef __mips__
+          oldact->sa_restorer    = ptr_oa->sa_restorer;
+          #endif
+        }
+      }
+      return rc;
+    }
+
+    LSS_INLINE int LSS_NAME(sigprocmask)(int how,
+                                         const struct kernel_sigset_t *set,
+                                         struct kernel_sigset_t *oldset) {
+      int olderrno = LSS_ERRNO;
+      int rc = LSS_NAME(rt_sigprocmask)(how, set, oldset, (KERNEL_NSIG+7)/8);
+      if (rc < 0 && LSS_ERRNO == ENOSYS) {
+        LSS_ERRNO = olderrno;
+        if (oldset) {
+          LSS_NAME(sigemptyset)(oldset);
+        }
+        rc = LSS_NAME(_sigprocmask)(how,
+                                    set ? &set->sig[0] : NULL,
+                                    oldset ? &oldset->sig[0] : NULL);
+      }
+      return rc;
+    }
+  #endif
+  #if defined(__i386__) ||                                                    \
+      defined(__ARM_ARCH_3__) || defined(__ARM_EABI__) ||                     \
+     (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) ||                   \
+     (defined(__PPC__) && !defined(__PPC64__)) ||                             \
+     (defined(__s390__) && !defined(__s390x__))
+    /* On these architectures, implement mmap() with mmap2(). */
+    LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,
+                                    int64_t o) {
+      if (o % 4096) {
+        LSS_ERRNO = EINVAL;
+        return (void *) -1;
+      }
+      return LSS_NAME(_mmap2)(s, l, p, f, d, (o / 4096));
+    }
+  #elif defined(__s390x__)
+    /* On s390x, mmap() arguments are passed in memory. */
+    LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,
+                                    int64_t o) {
+      unsigned long buf[6] = { (unsigned long) s, (unsigned long) l,
+                               (unsigned long) p, (unsigned long) f,
+                               (unsigned long) d, (unsigned long) o };
+      LSS_REG(2, buf);
+      LSS_BODY(void*, mmap, "0"(__r2));
+    }
+  #elif defined(__x86_64__)
+    /* Need to make sure __off64_t isn't truncated to 32-bits under x32.  */
+    LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d,
+                                    int64_t o) {
+      LSS_BODY(6, void*, mmap, LSS_SYSCALL_ARG(s), LSS_SYSCALL_ARG(l),
+                               LSS_SYSCALL_ARG(p), LSS_SYSCALL_ARG(f),
+                               LSS_SYSCALL_ARG(d), (uint64_t)(o));
+    }
+  #elif defined(__aarch64__) && defined (__ILP32__)
+    /* aarch64_ilp32 uses mmap2 for sys_mmap() */
+    LSS_INLINE _syscall6_long(void*, mmap, mmap2, void*, addr, size_t, length,
+                              int, prot, int, flags, int, fd, int64_t, offset)
+  #else
+    /* Remaining 64-bit architectures. */
+    LSS_INLINE _syscall6(void*, mmap, void*, addr, size_t, length, int, prot,
+                         int, flags, int, fd, int64_t, offset)
+  #endif
+  #if defined(__i386__) || \
+      defined(__PPC__) || \
+      (defined(__arm__) && !defined(__ARM_EABI__)) || \
+      (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) || \
+      defined(__s390__)
+
+    /* See sys_socketcall in net/socket.c in kernel source.
+     * It de-multiplexes on its first arg and unpacks the arglist
+     * array in its second arg.
+     */
+    LSS_INLINE _syscall2(int, socketcall, int, c, unsigned long*, a)
+
+    LSS_INLINE int LSS_NAME(socket)(int domain, int type, int protocol) {
+      unsigned long args[3] = {
+        (unsigned long) domain,
+        (unsigned long) type,
+        (unsigned long) protocol
+      };
+      return LSS_NAME(socketcall)(1, args);
+    }
+  #elif defined(__ARM_EABI__)
+    LSS_INLINE _syscall3(int, socket,             int,   d,
+                         int,                     t, int,       p)
+  #endif
+  #if defined(__mips__)
+    /* sys_pipe() on MIPS has non-standard calling conventions, as it returns
+     * both file handles through CPU registers.
+     */
+    LSS_INLINE int LSS_NAME(pipe)(int *p) {
+      register unsigned long __v0 __asm__("$2") = __NR_pipe;
+      register unsigned long __v1 __asm__("$3");
+      register unsigned long __r7 __asm__("$7");
+      __asm__ __volatile__ ("syscall\n"
+                            : "=&r"(__v0), "=&r"(__v1), "+r" (__r7)
+                            : "0"(__v0)
+                            : "$8", "$9", "$10", "$11", "$12",
+                              "$13", "$14", "$15", "$24", "memory");
+      if (__r7) {
+        LSS_ERRNO = __v0;
+        return -1;
+      } else {
+        p[0] = __v0;
+        p[1] = __v1;
+        return 0;
+      }
+    }
+  #elif defined(__NR_pipe2)
+    LSS_INLINE _syscall2(int,     pipe2,          int *, p,
+                         int,     f                        )
+    LSS_INLINE int LSS_NAME(pipe)( int * p) {
+        return LSS_NAME(pipe2)(p, 0);
+    }
+  #else
+    LSS_INLINE _syscall1(int,     pipe,           int *, p)
+  #endif
+
+  LSS_INLINE pid_t LSS_NAME(gettid)() {
+    pid_t tid = LSS_NAME(_gettid)();
+    if (tid != -1) {
+      return tid;
+    }
+    return LSS_NAME(getpid)();
+  }
+
+  LSS_INLINE void *LSS_NAME(mremap)(void *old_address, size_t old_size,
+                                    size_t new_size, int flags, ...) {
+    va_list ap;
+    void *new_address, *rc;
+    va_start(ap, flags);
+    new_address = va_arg(ap, void *);
+    rc = LSS_NAME(_mremap)(old_address, old_size, new_size,
+                           flags, new_address);
+    va_end(ap);
+    return rc;
+  }
+
+  LSS_INLINE int LSS_NAME(ptrace_detach)(pid_t pid) {
+    /* PTRACE_DETACH can sometimes forget to wake up the tracee and it
+     * then sends job control signals to the real parent, rather than to
+     * the tracer. We reduce the risk of this happening by starting a
+     * whole new time slice, and then quickly sending a SIGCONT signal
+     * right after detaching from the tracee.
+     */
+    int rc, err;
+    LSS_NAME(sched_yield)();
+    rc = LSS_NAME(ptrace)(PTRACE_DETACH, pid, (void *)0, (void *)0);
+    err = LSS_ERRNO;
+    LSS_NAME(kill)(pid, SIGCONT);
+    LSS_ERRNO = err;
+    return rc;
+  }
+#endif
+
+#if defined(__cplusplus) && !defined(SYS_CPLUSPLUS)
+}
+#endif
+
+#endif
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/linuxthreads.cc b/trunk/3rdparty/gperftools-2-fit/src/base/linuxthreads.cc
new file mode 100644
index 000000000..1e7f137bd
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/linuxthreads.cc
@@ -0,0 +1,707 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2005-2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Markus Gutschke
+ */
+
+#include "base/linuxthreads.h"
+
+#ifdef THREADS
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "base/linux_syscall_support.h"
+#include "base/thread_lister.h"
+
+#ifndef CLONE_UNTRACED
+#define CLONE_UNTRACED 0x00800000
+#endif
+
+
+/* Synchronous signals that should not be blocked while in the lister thread.
+ */
+static const int sync_signals[]  = { SIGABRT, SIGILL, SIGFPE, SIGSEGV, SIGBUS,
+                                     SIGXCPU, SIGXFSZ };
+
+/* itoa() is not a standard function, and we cannot safely call printf()
+ * after suspending threads. So, we just implement our own copy. A
+ * recursive approach is the easiest here.
+ */
+static char *local_itoa(char *buf, int i) {
+  if (i < 0) {
+    *buf++ = '-';
+    return local_itoa(buf, -i);
+  } else {
+    if (i >= 10)
+      buf = local_itoa(buf, i/10);
+    *buf++ = (i%10) + '0';
+    *buf   = '\000';
+    return buf;
+  }
+}
+
+
+/* Wrapper around clone() that runs "fn" on the same stack as the
+ * caller! Unlike fork(), the cloned thread shares the same address space.
+ * The caller must be careful to use only minimal amounts of stack until
+ * the cloned thread has returned.
+ * There is a good chance that the cloned thread and the caller will share
+ * the same copy of errno!
+ */
+#ifdef __GNUC__
+#if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3
+/* Try to force this function into a separate stack frame, and make sure
+ * that arguments are passed on the stack.
+ */
+static int local_clone (int (*fn)(void *), void *arg, ...)
+  __attribute__ ((noinline));
+#endif
+#endif
+
+/* To avoid the gap cross page boundaries, increase by the large parge
+ * size mostly PowerPC system uses.  */
+#ifdef __PPC64__
+#define CLONE_STACK_SIZE 65536
+#else
+#define CLONE_STACK_SIZE 4096
+#endif
+
+static int local_clone (int (*fn)(void *), void *arg, ...) {
+  /* Leave 4kB of gap between the callers stack and the new clone. This
+   * should be more than sufficient for the caller to call waitpid() until
+   * the cloned thread terminates.
+   *
+   * It is important that we set the CLONE_UNTRACED flag, because newer
+   * versions of "gdb" otherwise attempt to attach to our thread, and will
+   * attempt to reap its status codes. This subsequently results in the
+   * caller hanging indefinitely in waitpid(), waiting for a change in
+   * status that will never happen. By setting the CLONE_UNTRACED flag, we
+   * prevent "gdb" from stealing events, but we still expect the thread
+   * lister to fail, because it cannot PTRACE_ATTACH to the process that
+   * is being debugged. This is OK and the error code will be reported
+   * correctly.
+   */
+  return sys_clone(fn, (char *)&arg - CLONE_STACK_SIZE,
+                   CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_UNTRACED, arg, 0, 0, 0);
+}
+
+
+/* Local substitute for the atoi() function, which is not necessarily safe
+ * to call once threads are suspended (depending on whether libc looks up
+ * locale information,  when executing atoi()).
+ */
+static int local_atoi(const char *s) {
+  int n   = 0;
+  int neg = *s == '-';
+  if (neg)
+    s++;
+  while (*s >= '0' && *s <= '9')
+    n = 10*n + (*s++ - '0');
+  return neg ? -n : n;
+}
+
+
+/* Re-runs fn until it doesn't cause EINTR
+ */
+#define NO_INTR(fn)   do {} while ((fn) < 0 && errno == EINTR)
+
+
+/* Wrap a class around system calls, in order to give us access to
+ * a private copy of errno. This only works in C++, but it has the
+ * advantage of not needing nested functions, which are a non-standard
+ * language extension.
+ */
+#ifdef __cplusplus
+namespace {
+  class SysCalls {
+   public:
+    #define SYS_CPLUSPLUS
+    #define SYS_ERRNO     my_errno
+    #define SYS_INLINE    inline
+    #define SYS_PREFIX    -1
+    #undef  SYS_LINUX_SYSCALL_SUPPORT_H
+    #include "linux_syscall_support.h"
+    SysCalls() : my_errno(0) { }
+    int my_errno;
+  };
+}
+#define ERRNO sys.my_errno
+#else
+#define ERRNO my_errno
+#endif
+
+
+/* Wrapper for open() which is guaranteed to never return EINTR.
+ */
+static int c_open(const char *fname, int flags, int mode) {
+  ssize_t rc;
+  NO_INTR(rc = sys_open(fname, flags, mode));
+  return rc;
+}
+
+
+/* abort() is not safely reentrant, and changes it's behavior each time
+ * it is called. This means, if the main application ever called abort()
+ * we cannot safely call it again. This would happen if we were called
+ * from a SIGABRT signal handler in the main application. So, document
+ * that calling SIGABRT from the thread lister makes it not signal safe
+ * (and vice-versa).
+ * Also, since we share address space with the main application, we
+ * cannot call abort() from the callback and expect the main application
+ * to behave correctly afterwards. In fact, the only thing we can do, is
+ * to terminate the main application with extreme prejudice (aka
+ * PTRACE_KILL).
+ * We set up our own SIGABRT handler to do this.
+ * In order to find the main application from the signal handler, we
+ * need to store information about it in global variables. This is
+ * safe, because the main application should be suspended at this
+ * time. If the callback ever called TCMalloc_ResumeAllProcessThreads(), then
+ * we are running a higher risk, though. So, try to avoid calling
+ * abort() after calling TCMalloc_ResumeAllProcessThreads.
+ */
+static volatile int *sig_pids, sig_num_threads, sig_proc, sig_marker;
+
+
+/* Signal handler to help us recover from dying while we are attached to
+ * other threads.
+ */
+static void SignalHandler(int signum, siginfo_t *si, void *data) {
+  if (sig_pids != NULL) {
+    if (signum == SIGABRT) {
+      while (sig_num_threads-- > 0) {
+        /* Not sure if sched_yield is really necessary here, but it does not */
+        /* hurt, and it might be necessary for the same reasons that we have */
+        /* to do so in sys_ptrace_detach().                                  */
+        sys_sched_yield();
+        sys_ptrace(PTRACE_KILL, sig_pids[sig_num_threads], 0, 0);
+      }
+    } else if (sig_num_threads > 0) {
+      TCMalloc_ResumeAllProcessThreads(sig_num_threads, (int *)sig_pids);
+    }
+  }
+  sig_pids = NULL;
+  if (sig_marker >= 0)
+    NO_INTR(sys_close(sig_marker));
+  sig_marker = -1;
+  if (sig_proc >= 0)
+    NO_INTR(sys_close(sig_proc));
+  sig_proc = -1;
+
+  sys__exit(signum == SIGABRT ? 1 : 2);
+}
+
+
+/* Try to dirty the stack, and hope that the compiler is not smart enough
+ * to optimize this function away. Or worse, the compiler could inline the
+ * function and permanently allocate the data on the stack.
+ */
+static void DirtyStack(size_t amount) {
+  char buf[amount];
+  memset(buf, 0, amount);
+  sys_read(-1, buf, amount);
+}
+
+
+/* Data structure for passing arguments to the lister thread.
+ */
+#define ALT_STACKSIZE (MINSIGSTKSZ + 4096)
+
+struct ListerParams {
+  int         result, err;
+  char        *altstack_mem;
+  ListAllProcessThreadsCallBack callback;
+  void        *parameter;
+  va_list     ap;
+  sem_t       *lock;
+};
+
+
+static void ListerThread(struct ListerParams *args) {
+  int                found_parent = 0;
+  pid_t              clone_pid  = sys_gettid(), ppid = sys_getppid();
+  char               proc_self_task[80], marker_name[48], *marker_path;
+  const char         *proc_paths[3];
+  const char *const  *proc_path = proc_paths;
+  int                proc = -1, marker = -1, num_threads = 0;
+  int                max_threads = 0, sig;
+  struct kernel_stat marker_sb, proc_sb;
+  stack_t            altstack;
+
+  /* Wait for parent thread to set appropriate permissions
+   * to allow ptrace activity
+   */
+  if (sem_wait(args->lock) < 0) {
+    goto failure;
+  }
+
+  /* Create "marker" that we can use to detect threads sharing the same
+   * address space and the same file handles. By setting the FD_CLOEXEC flag
+   * we minimize the risk of misidentifying child processes as threads;
+   * and since there is still a race condition,  we will filter those out
+   * later, anyway.
+   */
+  if ((marker = sys_socket(PF_LOCAL, SOCK_DGRAM, 0)) < 0 ||
+      sys_fcntl(marker, F_SETFD, FD_CLOEXEC) < 0) {
+  failure:
+    args->result = -1;
+    args->err    = errno;
+    if (marker >= 0)
+      NO_INTR(sys_close(marker));
+    sig_marker = marker = -1;
+    if (proc >= 0)
+      NO_INTR(sys_close(proc));
+    sig_proc = proc = -1;
+    sys__exit(1);
+  }
+
+  /* Compute search paths for finding thread directories in /proc            */
+  local_itoa(strrchr(strcpy(proc_self_task, "/proc/"), '\000'), ppid);
+  strcpy(marker_name, proc_self_task);
+  marker_path = marker_name + strlen(marker_name);
+  strcat(proc_self_task, "/task/");
+  proc_paths[0] = proc_self_task; /* /proc/$$/task/                          */
+  proc_paths[1] = "/proc/";       /* /proc/                                  */
+  proc_paths[2] = NULL;
+
+  /* Compute path for marker socket in /proc                                 */
+  local_itoa(strcpy(marker_path, "/fd/") + 4, marker);
+  if (sys_stat(marker_name, &marker_sb) < 0) {
+    goto failure;
+  }
+
+  /* Catch signals on an alternate pre-allocated stack. This way, we can
+   * safely execute the signal handler even if we ran out of memory.
+   */
+  memset(&altstack, 0, sizeof(altstack));
+  altstack.ss_sp    = args->altstack_mem;
+  altstack.ss_flags = 0;
+  altstack.ss_size  = ALT_STACKSIZE;
+  sys_sigaltstack(&altstack, (const stack_t *)NULL);
+
+  /* Some kernels forget to wake up traced processes, when the
+   * tracer dies.  So, intercept synchronous signals and make sure
+   * that we wake up our tracees before dying. It is the caller's
+   * responsibility to ensure that asynchronous signals do not
+   * interfere with this function.
+   */
+  sig_marker = marker;
+  sig_proc   = -1;
+  for (sig = 0; sig < sizeof(sync_signals)/sizeof(*sync_signals); sig++) {
+    struct kernel_sigaction sa;
+    memset(&sa, 0, sizeof(sa));
+    sa.sa_sigaction_ = SignalHandler;
+    sys_sigfillset(&sa.sa_mask);
+    sa.sa_flags      = SA_ONSTACK|SA_SIGINFO|SA_RESETHAND;
+    sys_sigaction(sync_signals[sig], &sa, (struct kernel_sigaction *)NULL);
+  }
+
+  /* Read process directories in /proc/...                                   */
+  for (;;) {
+    /* Some kernels know about threads, and hide them in "/proc"
+     * (although they are still there, if you know the process
+     * id). Threads are moved into a separate "task" directory. We
+     * check there first, and then fall back on the older naming
+     * convention if necessary.
+     */
+    if ((sig_proc = proc = c_open(*proc_path, O_RDONLY|O_DIRECTORY, 0)) < 0) {
+      if (*++proc_path != NULL)
+        continue;
+      goto failure;
+    }
+    if (sys_fstat(proc, &proc_sb) < 0)
+      goto failure;
+
+    /* Since we are suspending threads, we cannot call any libc
+     * functions that might acquire locks. Most notably, we cannot
+     * call malloc(). So, we have to allocate memory on the stack,
+     * instead. Since we do not know how much memory we need, we
+     * make a best guess. And if we guessed incorrectly we retry on
+     * a second iteration (by jumping to "detach_threads").
+     *
+     * Unless the number of threads is increasing very rapidly, we
+     * should never need to do so, though, as our guestimate is very
+     * conservative.
+     */
+    if (max_threads < proc_sb.st_nlink + 100)
+      max_threads = proc_sb.st_nlink + 100;
+
+    /* scope */ {
+      pid_t pids[max_threads];
+      int   added_entries = 0;
+      sig_num_threads     = num_threads;
+      sig_pids            = pids;
+      for (;;) {
+        struct KERNEL_DIRENT *entry;
+        char buf[4096];
+        ssize_t nbytes = GETDENTS(proc, (struct KERNEL_DIRENT *)buf,
+                                         sizeof(buf));
+        if (nbytes < 0)
+          goto failure;
+        else if (nbytes == 0) {
+          if (added_entries) {
+            /* Need to keep iterating over "/proc" in multiple
+             * passes until we no longer find any more threads. This
+             * algorithm eventually completes, when all threads have
+             * been suspended.
+             */
+            added_entries = 0;
+            sys_lseek(proc, 0, SEEK_SET);
+            continue;
+          }
+          break;
+        }
+        for (entry = (struct KERNEL_DIRENT *)buf;
+             entry < (struct KERNEL_DIRENT *)&buf[nbytes];
+             entry = (struct KERNEL_DIRENT *)((char *)entry+entry->d_reclen)) {
+          if (entry->d_ino != 0) {
+            const char *ptr = entry->d_name;
+            pid_t pid;
+
+            /* Some kernels hide threads by preceding the pid with a '.'     */
+            if (*ptr == '.')
+              ptr++;
+
+            /* If the directory is not numeric, it cannot be a
+             * process/thread
+             */
+            if (*ptr < '0' || *ptr > '9')
+              continue;
+            pid = local_atoi(ptr);
+
+            /* Attach (and suspend) all threads                              */
+            if (pid && pid != clone_pid) {
+              struct kernel_stat tmp_sb;
+              char fname[entry->d_reclen + 48];
+              strcat(strcat(strcpy(fname, "/proc/"),
+                            entry->d_name), marker_path);
+
+              /* Check if the marker is identical to the one we created      */
+              if (sys_stat(fname, &tmp_sb) >= 0 &&
+                  marker_sb.st_ino == tmp_sb.st_ino) {
+                long i, j;
+
+                /* Found one of our threads, make sure it is no duplicate    */
+                for (i = 0; i < num_threads; i++) {
+                  /* Linear search is slow, but should not matter much for
+                   * the typically small number of threads.
+                   */
+                  if (pids[i] == pid) {
+                    /* Found a duplicate; most likely on second pass         */
+                    goto next_entry;
+                  }
+                }
+
+                /* Check whether data structure needs growing                */
+                if (num_threads >= max_threads) {
+                  /* Back to square one, this time with more memory          */
+                  NO_INTR(sys_close(proc));
+                  goto detach_threads;
+                }
+
+                /* Attaching to thread suspends it                           */
+                pids[num_threads++] = pid;
+                sig_num_threads     = num_threads;
+                if (sys_ptrace(PTRACE_ATTACH, pid, (void *)0,
+                               (void *)0) < 0) {
+                  /* If operation failed, ignore thread. Maybe it
+                   * just died?  There might also be a race
+                   * condition with a concurrent core dumper or
+                   * with a debugger. In that case, we will just
+                   * make a best effort, rather than failing
+                   * entirely.
+                   */
+                  num_threads--;
+                  sig_num_threads = num_threads;
+                  goto next_entry;
+                }
+                while (sys_waitpid(pid, (int *)0, __WALL) < 0) {
+                  if (errno != EINTR) {
+                    sys_ptrace_detach(pid);
+                    num_threads--;
+                    sig_num_threads = num_threads;
+                    goto next_entry;
+                  }
+                }
+
+                if (sys_ptrace(PTRACE_PEEKDATA, pid, &i, &j) || i++ != j ||
+                    sys_ptrace(PTRACE_PEEKDATA, pid, &i, &j) || i   != j) {
+                  /* Address spaces are distinct, even though both
+                   * processes show the "marker". This is probably
+                   * a forked child process rather than a thread.
+                   */
+                  sys_ptrace_detach(pid);
+                  num_threads--;
+                  sig_num_threads = num_threads;
+                } else {
+                  found_parent |= pid == ppid;
+                  added_entries++;
+                }
+              }
+            }
+          }
+        next_entry:;
+        }
+      }
+      NO_INTR(sys_close(proc));
+      sig_proc = proc = -1;
+
+      /* If we failed to find any threads, try looking somewhere else in
+       * /proc. Maybe, threads are reported differently on this system.
+       */
+      if (num_threads > 1 || !*++proc_path) {
+        NO_INTR(sys_close(marker));
+        sig_marker = marker = -1;
+
+        /* If we never found the parent process, something is very wrong.
+         * Most likely, we are running in debugger. Any attempt to operate
+         * on the threads would be very incomplete. Let's just report an
+         * error to the caller.
+         */
+        if (!found_parent) {
+          TCMalloc_ResumeAllProcessThreads(num_threads, pids);
+          sys__exit(3);
+        }
+
+        /* Now we are ready to call the callback,
+         * which takes care of resuming the threads for us.
+         */
+        args->result = args->callback(args->parameter, num_threads,
+                                      pids, args->ap);
+        args->err = errno;
+
+        /* Callback should have resumed threads, but better safe than sorry  */
+        if (TCMalloc_ResumeAllProcessThreads(num_threads, pids)) {
+          /* Callback forgot to resume at least one thread, report error     */
+          args->err    = EINVAL;
+          args->result = -1;
+        }
+
+        sys__exit(0);
+      }
+    detach_threads:
+      /* Resume all threads prior to retrying the operation                  */
+      TCMalloc_ResumeAllProcessThreads(num_threads, pids);
+      sig_pids = NULL;
+      num_threads = 0;
+      sig_num_threads = num_threads;
+      max_threads += 100;
+    }
+  }
+}
+
+
+/* This function gets the list of all linux threads of the current process
+ * passes them to the 'callback' along with the 'parameter' pointer; at the
+ * call back call time all the threads are paused via
+ * PTRACE_ATTACH.
+ * The callback is executed from a separate thread which shares only the
+ * address space, the filesystem, and the filehandles with the caller. Most
+ * notably, it does not share the same pid and ppid; and if it terminates,
+ * the rest of the application is still there. 'callback' is supposed to do
+ * or arrange for TCMalloc_ResumeAllProcessThreads. This happens automatically, if
+ * the thread raises a synchronous signal (e.g. SIGSEGV); asynchronous
+ * signals are blocked. If the 'callback' decides to unblock them, it must
+ * ensure that they cannot terminate the application, or that
+ * TCMalloc_ResumeAllProcessThreads will get called.
+ * It is an error for the 'callback' to make any library calls that could
+ * acquire locks. Most notably, this means that most system calls have to
+ * avoid going through libc. Also, this means that it is not legal to call
+ * exit() or abort().
+ * We return -1 on error and the return value of 'callback' on success.
+ */
+int TCMalloc_ListAllProcessThreads(void *parameter,
+                                   ListAllProcessThreadsCallBack callback, ...) {
+  char                   altstack_mem[ALT_STACKSIZE];
+  struct ListerParams    args;
+  pid_t                  clone_pid;
+  int                    dumpable = 1, sig;
+  struct kernel_sigset_t sig_blocked, sig_old;
+  sem_t                  lock;
+
+  va_start(args.ap, callback);
+
+  /* If we are short on virtual memory, initializing the alternate stack
+   * might trigger a SIGSEGV. Let's do this early, before it could get us
+   * into more trouble (i.e. before signal handlers try to use the alternate
+   * stack, and before we attach to other threads).
+   */
+  memset(altstack_mem, 0, sizeof(altstack_mem));
+
+  /* Some of our cleanup functions could conceivable use more stack space.
+   * Try to touch the stack right now. This could be defeated by the compiler
+   * being too smart for it's own good, so try really hard.
+   */
+  DirtyStack(32768);
+
+  /* Make this process "dumpable". This is necessary in order to ptrace()
+   * after having called setuid().
+   */
+  dumpable = sys_prctl(PR_GET_DUMPABLE, 0);
+  if (!dumpable)
+    sys_prctl(PR_SET_DUMPABLE, 1);
+
+  /* Fill in argument block for dumper thread                                */
+  args.result       = -1;
+  args.err          = 0;
+  args.altstack_mem = altstack_mem;
+  args.parameter    = parameter;
+  args.callback     = callback;
+  args.lock         = &lock;
+
+  /* Before cloning the thread lister, block all asynchronous signals, as we */
+  /* are not prepared to handle them.                                        */
+  sys_sigfillset(&sig_blocked);
+  for (sig = 0; sig < sizeof(sync_signals)/sizeof(*sync_signals); sig++) {
+    sys_sigdelset(&sig_blocked, sync_signals[sig]);
+  }
+  if (sys_sigprocmask(SIG_BLOCK, &sig_blocked, &sig_old)) {
+    args.err = errno;
+    args.result = -1;
+    goto failed;
+  }
+
+  /* scope */ {
+    /* After cloning, both the parent and the child share the same instance
+     * of errno. We must make sure that at least one of these processes
+     * (in our case, the parent) uses modified syscall macros that update
+     * a local copy of errno, instead.
+     */
+    #ifdef __cplusplus
+      #define sys0_sigprocmask sys.sigprocmask
+      #define sys0_waitpid     sys.waitpid
+      SysCalls sys;
+    #else
+      int my_errno;
+      #define SYS_ERRNO        my_errno
+      #define SYS_INLINE       inline
+      #define SYS_PREFIX       0
+      #undef  SYS_LINUX_SYSCALL_SUPPORT_H
+      #include "linux_syscall_support.h"
+    #endif
+
+    /* Lock before clone so that parent can set
+	 * ptrace permissions (if necessary) prior
+     * to ListerThread actually executing
+     */
+    if (sem_init(&lock, 0, 0) == 0) {
+
+      int clone_errno;
+      clone_pid = local_clone((int (*)(void *))ListerThread, &args);
+      clone_errno = errno;
+
+      sys_sigprocmask(SIG_SETMASK, &sig_old, &sig_old);
+
+      if (clone_pid >= 0) {
+#ifdef PR_SET_PTRACER
+        /* In newer versions of glibc permission must explicitly
+         * be given to allow for ptrace.
+         */
+        prctl(PR_SET_PTRACER, clone_pid, 0, 0, 0);
+#endif
+        /* Releasing the lock here allows the
+         * ListerThread to execute and ptrace us.
+		 */
+        sem_post(&lock);
+        int status, rc;
+        while ((rc = sys0_waitpid(clone_pid, &status, __WALL)) < 0 &&
+               ERRNO == EINTR) {
+                /* Keep waiting                                                 */
+        }
+        if (rc < 0) {
+          args.err = ERRNO;
+          args.result = -1;
+        } else if (WIFEXITED(status)) {
+          switch (WEXITSTATUS(status)) {
+            case 0: break;             /* Normal process termination           */
+            case 2: args.err = EFAULT; /* Some fault (e.g. SIGSEGV) detected   */
+                    args.result = -1;
+                    break;
+            case 3: args.err = EPERM;  /* Process is already being traced      */
+                    args.result = -1;
+                    break;
+            default:args.err = ECHILD; /* Child died unexpectedly              */
+                    args.result = -1;
+                    break;
+          }
+        } else if (!WIFEXITED(status)) {
+          args.err    = EFAULT;        /* Terminated due to an unhandled signal*/
+          args.result = -1;
+        }
+        sem_destroy(&lock);
+      } else {
+        args.result = -1;
+        args.err    = clone_errno;
+      }
+    } else {
+      args.result = -1;
+      args.err    = errno;
+    }
+  }
+
+  /* Restore the "dumpable" state of the process                             */
+failed:
+  if (!dumpable)
+    sys_prctl(PR_SET_DUMPABLE, dumpable);
+
+  va_end(args.ap);
+
+  errno = args.err;
+  return args.result;
+}
+
+/* This function resumes the list of all linux threads that
+ * TCMalloc_ListAllProcessThreads pauses before giving to its callback.
+ * The function returns non-zero if at least one thread was
+ * suspended and has now been resumed.
+ */
+int TCMalloc_ResumeAllProcessThreads(int num_threads, pid_t *thread_pids) {
+  int detached_at_least_one = 0;
+  while (num_threads-- > 0) {
+    detached_at_least_one |= sys_ptrace_detach(thread_pids[num_threads]) >= 0;
+  }
+  return detached_at_least_one;
+}
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/linuxthreads.h b/trunk/3rdparty/gperftools-2-fit/src/base/linuxthreads.h
new file mode 100644
index 000000000..a087628bf
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/linuxthreads.h
@@ -0,0 +1,55 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2005-2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Markus Gutschke
+ */
+
+#ifndef _LINUXTHREADS_H
+#define _LINUXTHREADS_H
+
+/* Include thread_lister.h to get the interface that we implement for linux.
+ */
+
+/* We currently only support certain platforms on Linux. Porting to other
+ * related platforms should not be difficult.
+ */
+#if (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \
+     defined(__mips__) || defined(__PPC__) || defined(__aarch64__) ||       \
+     defined(__s390__)) && defined(__linux)
+
+/* Define the THREADS symbol to make sure that there is exactly one core dumper
+ * built into the library.
+ */
+#define THREADS "Linux /proc"
+
+#endif
+
+#endif  /* _LINUXTHREADS_H */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/logging.cc b/trunk/3rdparty/gperftools-2-fit/src/base/logging.cc
new file mode 100644
index 000000000..52d9bd361
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/logging.cc
@@ -0,0 +1,108 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// This file just provides storage for FLAGS_verbose.
+
+#include 
+#include "base/logging.h"
+#include "base/commandlineflags.h"
+
+DEFINE_int32(verbose, EnvToInt("PERFTOOLS_VERBOSE", 0),
+             "Set to numbers >0 for more verbose output, or <0 for less.  "
+             "--verbose == -4 means we log fatal errors only.");
+
+
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+
+// While windows does have a POSIX-compatible API
+// (_open/_write/_close), it acquires memory.  Using this lower-level
+// windows API is the closest we can get to being "raw".
+RawFD RawOpenForWriting(const char* filename) {
+  // CreateFile allocates memory if file_name isn't absolute, so if
+  // that ever becomes a problem then we ought to compute the absolute
+  // path on its behalf (perhaps the ntdll/kernel function isn't aware
+  // of the working directory?)
+  RawFD fd = CreateFileA(filename, GENERIC_WRITE, 0, NULL,
+                         CREATE_ALWAYS, 0, NULL);
+  if (fd != kIllegalRawFD && GetLastError() == ERROR_ALREADY_EXISTS)
+    SetEndOfFile(fd);    // truncate the existing file
+  return fd;
+}
+
+void RawWrite(RawFD handle, const char* buf, size_t len) {
+  while (len > 0) {
+    DWORD wrote;
+    BOOL ok = WriteFile(handle, buf, len, &wrote, NULL);
+    // We do not use an asynchronous file handle, so ok==false means an error
+    if (!ok) break;
+    buf += wrote;
+    len -= wrote;
+  }
+}
+
+void RawClose(RawFD handle) {
+  CloseHandle(handle);
+}
+
+#else  // _WIN32 || __CYGWIN__ || __CYGWIN32__
+
+#ifdef HAVE_SYS_TYPES_H
+#include 
+#endif
+#ifdef HAVE_UNISTD_H
+#include 
+#endif
+#ifdef HAVE_FCNTL_H
+#include 
+#endif
+
+// Re-run fn until it doesn't cause EINTR.
+#define NO_INTR(fn)  do {} while ((fn) < 0 && errno == EINTR)
+
+RawFD RawOpenForWriting(const char* filename) {
+  return open(filename, O_WRONLY|O_CREAT|O_TRUNC, 0664);
+}
+
+void RawWrite(RawFD fd, const char* buf, size_t len) {
+  while (len > 0) {
+    ssize_t r;
+    NO_INTR(r = write(fd, buf, len));
+    if (r <= 0) break;
+    buf += r;
+    len -= r;
+  }
+}
+
+void RawClose(RawFD fd) {
+  NO_INTR(close(fd));
+}
+
+#endif  // _WIN32 || __CYGWIN__ || __CYGWIN32__
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/logging.h b/trunk/3rdparty/gperftools-2-fit/src/base/logging.h
new file mode 100644
index 000000000..94b9138c7
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/logging.h
@@ -0,0 +1,259 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// This file contains #include information about logging-related stuff.
+// Pretty much everybody needs to #include this file so that they can
+// log various happenings.
+//
+#ifndef _LOGGING_H_
+#define _LOGGING_H_
+
+#include 
+#include 
+#include 
+#include 
+#ifdef HAVE_UNISTD_H
+#include     // for write()
+#endif
+#include     // for strlen(), strcmp()
+#include 
+#include      // for errno
+#include "base/commandlineflags.h"
+
+// On some systems (like freebsd), we can't call write() at all in a
+// global constructor, perhaps because errno hasn't been set up.
+// (In windows, we can't call it because it might call malloc.)
+// Calling the write syscall is safer (it doesn't set errno), so we
+// prefer that.  Note we don't care about errno for logging: we just
+// do logging on a best-effort basis.
+#if defined(_MSC_VER)
+#define WRITE_TO_STDERR(buf, len) WriteToStderr(buf, len);  // in port.cc
+#elif defined(HAVE_SYS_SYSCALL_H)
+#include 
+#define WRITE_TO_STDERR(buf, len) syscall(SYS_write, STDERR_FILENO, buf, len)
+#else
+#define WRITE_TO_STDERR(buf, len) write(STDERR_FILENO, buf, len)
+#endif
+
+// MSVC and mingw define their own, safe version of vnsprintf (the
+// windows one in broken) in port.cc.  Everyone else can use the
+// version here.  We had to give it a unique name for windows.
+#ifndef _WIN32
+# define perftools_vsnprintf vsnprintf
+#endif
+
+
+// We log all messages at this log-level and below.
+// INFO == -1, WARNING == -2, ERROR == -3, FATAL == -4
+DECLARE_int32(verbose);
+
+// CHECK dies with a fatal error if condition is not true.  It is *not*
+// controlled by NDEBUG, so the check will be executed regardless of
+// compilation mode.  Therefore, it is safe to do things like:
+//    CHECK(fp->Write(x) == 4)
+// Note we use write instead of printf/puts to avoid the risk we'll
+// call malloc().
+#define CHECK(condition)                                                \
+  do {                                                                  \
+    if (!(condition)) {                                                 \
+      WRITE_TO_STDERR("Check failed: " #condition "\n",                 \
+                      sizeof("Check failed: " #condition "\n")-1);      \
+      abort();                                                          \
+    }                                                                   \
+  } while (0)
+
+// This takes a message to print.  The name is historical.
+#define RAW_CHECK(condition, message)                                          \
+  do {                                                                         \
+    if (!(condition)) {                                                        \
+      WRITE_TO_STDERR("Check failed: " #condition ": " message "\n",           \
+                      sizeof("Check failed: " #condition ": " message "\n")-1);\
+      abort();                                                                 \
+    }                                                                          \
+  } while (0)
+
+// This is like RAW_CHECK, but only in debug-mode
+#ifdef NDEBUG
+enum { DEBUG_MODE = 0 };
+#define RAW_DCHECK(condition, message)
+#else
+enum { DEBUG_MODE = 1 };
+#define RAW_DCHECK(condition, message)  RAW_CHECK(condition, message)
+#endif
+
+// This prints errno as well.  Note we use write instead of printf/puts to
+// avoid the risk we'll call malloc().
+#define PCHECK(condition)                                               \
+  do {                                                                  \
+    if (!(condition)) {                                                 \
+      const int err_no = errno;                                         \
+      WRITE_TO_STDERR("Check failed: " #condition ": ",                 \
+                      sizeof("Check failed: " #condition ": ")-1);      \
+      WRITE_TO_STDERR(strerror(err_no), strlen(strerror(err_no)));      \
+      WRITE_TO_STDERR("\n", sizeof("\n")-1);                            \
+      abort();                                                          \
+    }                                                                   \
+  } while (0)
+
+// Helper macro for binary operators; prints the two values on error
+// Don't use this macro directly in your code, use CHECK_EQ et al below
+
+// WARNING: These don't compile correctly if one of the arguments is a pointer
+// and the other is NULL. To work around this, simply static_cast NULL to the
+// type of the desired pointer.
+
+// TODO(jandrews): Also print the values in case of failure.  Requires some
+// sort of type-sensitive ToString() function.
+#define CHECK_OP(op, val1, val2)                                        \
+  do {                                                                  \
+    if (!((val1) op (val2))) {                                          \
+      fprintf(stderr, "Check failed: %s %s %s\n", #val1, #op, #val2);   \
+      abort();                                                          \
+    }                                                                   \
+  } while (0)
+
+#define CHECK_EQ(val1, val2) CHECK_OP(==, val1, val2)
+#define CHECK_NE(val1, val2) CHECK_OP(!=, val1, val2)
+#define CHECK_LE(val1, val2) CHECK_OP(<=, val1, val2)
+#define CHECK_LT(val1, val2) CHECK_OP(< , val1, val2)
+#define CHECK_GE(val1, val2) CHECK_OP(>=, val1, val2)
+#define CHECK_GT(val1, val2) CHECK_OP(> , val1, val2)
+
+// Synonyms for CHECK_* that are used in some unittests.
+#define EXPECT_EQ(val1, val2) CHECK_EQ(val1, val2)
+#define EXPECT_NE(val1, val2) CHECK_NE(val1, val2)
+#define EXPECT_LE(val1, val2) CHECK_LE(val1, val2)
+#define EXPECT_LT(val1, val2) CHECK_LT(val1, val2)
+#define EXPECT_GE(val1, val2) CHECK_GE(val1, val2)
+#define EXPECT_GT(val1, val2) CHECK_GT(val1, val2)
+#define ASSERT_EQ(val1, val2) EXPECT_EQ(val1, val2)
+#define ASSERT_NE(val1, val2) EXPECT_NE(val1, val2)
+#define ASSERT_LE(val1, val2) EXPECT_LE(val1, val2)
+#define ASSERT_LT(val1, val2) EXPECT_LT(val1, val2)
+#define ASSERT_GE(val1, val2) EXPECT_GE(val1, val2)
+#define ASSERT_GT(val1, val2) EXPECT_GT(val1, val2)
+// As are these variants.
+#define EXPECT_TRUE(cond)     CHECK(cond)
+#define EXPECT_FALSE(cond)    CHECK(!(cond))
+#define EXPECT_STREQ(a, b)    CHECK(strcmp(a, b) == 0)
+#define ASSERT_TRUE(cond)     EXPECT_TRUE(cond)
+#define ASSERT_FALSE(cond)    EXPECT_FALSE(cond)
+#define ASSERT_STREQ(a, b)    EXPECT_STREQ(a, b)
+
+// Used for (libc) functions that return -1 and set errno
+#define CHECK_ERR(invocation)  PCHECK((invocation) != -1)
+
+// A few more checks that only happen in debug mode
+#ifdef NDEBUG
+#define DCHECK_EQ(val1, val2)
+#define DCHECK_NE(val1, val2)
+#define DCHECK_LE(val1, val2)
+#define DCHECK_LT(val1, val2)
+#define DCHECK_GE(val1, val2)
+#define DCHECK_GT(val1, val2)
+#else
+#define DCHECK_EQ(val1, val2)  CHECK_EQ(val1, val2)
+#define DCHECK_NE(val1, val2)  CHECK_NE(val1, val2)
+#define DCHECK_LE(val1, val2)  CHECK_LE(val1, val2)
+#define DCHECK_LT(val1, val2)  CHECK_LT(val1, val2)
+#define DCHECK_GE(val1, val2)  CHECK_GE(val1, val2)
+#define DCHECK_GT(val1, val2)  CHECK_GT(val1, val2)
+#endif
+
+
+#ifdef ERROR
+#undef ERROR      // may conflict with ERROR macro on windows
+#endif
+enum LogSeverity {INFO = -1, WARNING = -2, ERROR = -3, FATAL = -4};
+
+// NOTE: we add a newline to the end of the output if it's not there already
+inline void LogPrintf(int severity, const char* pat, va_list ap) {
+  // We write directly to the stderr file descriptor and avoid FILE
+  // buffering because that may invoke malloc()
+  char buf[600];
+  perftools_vsnprintf(buf, sizeof(buf)-1, pat, ap);
+  if (buf[0] != '\0' && buf[strlen(buf)-1] != '\n') {
+    assert(strlen(buf)+1 < sizeof(buf));
+    strcat(buf, "\n");
+  }
+  WRITE_TO_STDERR(buf, strlen(buf));
+  if ((severity) == FATAL)
+    abort(); // LOG(FATAL) indicates a big problem, so don't run atexit() calls
+}
+
+// Note that since the order of global constructors is unspecified,
+// global code that calls RAW_LOG may execute before FLAGS_verbose is set.
+// Such code will run with verbosity == 0 no matter what.
+#define VLOG_IS_ON(severity) (FLAGS_verbose >= severity)
+
+// In a better world, we'd use __VA_ARGS__, but VC++ 7 doesn't support it.
+#define LOG_PRINTF(severity, pat) do {          \
+  if (VLOG_IS_ON(severity)) {                   \
+    va_list ap;                                 \
+    va_start(ap, pat);                          \
+    LogPrintf(severity, pat, ap);               \
+    va_end(ap);                                 \
+  }                                             \
+} while (0)
+
+// RAW_LOG is the main function; some synonyms are used in unittests.
+inline void RAW_LOG(int lvl, const char* pat, ...)  { LOG_PRINTF(lvl, pat); }
+inline void RAW_VLOG(int lvl, const char* pat, ...) { LOG_PRINTF(lvl, pat); }
+inline void LOG(int lvl, const char* pat, ...)      { LOG_PRINTF(lvl, pat); }
+inline void VLOG(int lvl, const char* pat, ...)     { LOG_PRINTF(lvl, pat); }
+inline void LOG_IF(int lvl, bool cond, const char* pat, ...) {
+  if (cond)  LOG_PRINTF(lvl, pat);
+}
+
+// This isn't technically logging, but it's also IO and also is an
+// attempt to be "raw" -- that is, to not use any higher-level libc
+// routines that might allocate memory or (ideally) try to allocate
+// locks.  We use an opaque file handle (not necessarily an int)
+// to allow even more low-level stuff in the future.
+// Like other "raw" routines, these functions are best effort, and
+// thus don't return error codes (except RawOpenForWriting()).
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+#ifndef NOMINMAX
+#define NOMINMAX     // @#!$& windows
+#endif
+#include 
+typedef HANDLE RawFD;
+const RawFD kIllegalRawFD = INVALID_HANDLE_VALUE;
+#else
+typedef int RawFD;
+const RawFD kIllegalRawFD = -1;   // what open returns if it fails
+#endif  // defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+
+RawFD RawOpenForWriting(const char* filename);   // uses default permissions
+void RawWrite(RawFD fd, const char* buf, size_t len);
+void RawClose(RawFD fd);
+
+#endif // _LOGGING_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/low_level_alloc.cc b/trunk/3rdparty/gperftools-2-fit/src/base/low_level_alloc.cc
new file mode 100644
index 000000000..db91155ba
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/low_level_alloc.cc
@@ -0,0 +1,580 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// A low-level allocator that can be used by other low-level
+// modules without introducing dependency cycles.
+// This allocator is slow and wasteful of memory;
+// it should not be used when performance is key.
+
+#include "base/low_level_alloc.h"
+#include "base/dynamic_annotations.h"
+#include "base/spinlock.h"
+#include "base/logging.h"
+#include "malloc_hook-inl.h"
+#include 
+#include 
+#ifdef HAVE_UNISTD_H
+#include 
+#endif
+#ifdef HAVE_MMAP
+#include 
+#endif
+#include                    // for placement-new
+
+// On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old
+// form of the name instead.
+#ifndef MAP_ANONYMOUS
+# define MAP_ANONYMOUS MAP_ANON
+#endif
+
+// A first-fit allocator with amortized logarithmic free() time.
+
+LowLevelAlloc::PagesAllocator::~PagesAllocator() {
+}
+
+// ---------------------------------------------------------------------------
+static const int kMaxLevel = 30;
+
+// We put this class-only struct in a namespace to avoid polluting the
+// global namespace with this struct name (thus risking an ODR violation).
+namespace low_level_alloc_internal {
+  // This struct describes one allocated block, or one free block.
+  struct AllocList {
+    struct Header {
+      intptr_t size;  // size of entire region, including this field. Must be
+                      // first.  Valid in both allocated and unallocated blocks
+      intptr_t magic; // kMagicAllocated or kMagicUnallocated xor this
+      LowLevelAlloc::Arena *arena; // pointer to parent arena
+      void *dummy_for_alignment;   // aligns regions to 0 mod 2*sizeof(void*)
+    } header;
+
+    // Next two fields: in unallocated blocks: freelist skiplist data
+    //                  in allocated blocks: overlaps with client data
+    int levels;           // levels in skiplist used
+    AllocList *next[kMaxLevel];   // actually has levels elements.
+                                  // The AllocList node may not have room for
+                                  // all kMaxLevel entries.  See max_fit in
+                                  // LLA_SkiplistLevels()
+  };
+}
+using low_level_alloc_internal::AllocList;
+
+
+// ---------------------------------------------------------------------------
+// A trivial skiplist implementation.  This is used to keep the freelist
+// in address order while taking only logarithmic time per insert and delete.
+
+// An integer approximation of log2(size/base)
+// Requires size >= base.
+static int IntLog2(size_t size, size_t base) {
+  int result = 0;
+  for (size_t i = size; i > base; i >>= 1) { // i == floor(size/2**result)
+    result++;
+  }
+  //    floor(size / 2**result) <= base < floor(size / 2**(result-1))
+  // =>     log2(size/(base+1)) <= result < 1+log2(size/base)
+  // => result ~= log2(size/base)
+  return result;
+}
+
+// Return a random integer n:  p(n)=1/(2**n) if 1 <= n; p(n)=0 if n < 1.
+static int Random() {
+  static uint32 r = 1;         // no locking---it's not critical
+  int result = 1;
+  while ((((r = r*1103515245 + 12345) >> 30) & 1) == 0) {
+    result++;
+  }
+  return result;
+}
+
+// Return a number of skiplist levels for a node of size bytes, where
+// base is the minimum node size.  Compute level=log2(size / base)+n
+// where n is 1 if random is false and otherwise a random number generated with
+// the standard distribution for a skiplist:  See Random() above.
+// Bigger nodes tend to have more skiplist levels due to the log2(size / base)
+// term, so first-fit searches touch fewer nodes.  "level" is clipped so
+// level max_fit)     level = max_fit;
+  if (level > kMaxLevel-1) level = kMaxLevel - 1;
+  RAW_CHECK(level >= 1, "block not big enough for even one level");
+  return level;
+}
+
+// Return "atleast", the first element of AllocList *head s.t. *atleast >= *e.
+// For 0 <= i < head->levels, set prev[i] to "no_greater", where no_greater
+// points to the last element at level i in the AllocList less than *e, or is
+// head if no such element exists.
+static AllocList *LLA_SkiplistSearch(AllocList *head,
+                                     AllocList *e, AllocList **prev) {
+  AllocList *p = head;
+  for (int level = head->levels - 1; level >= 0; level--) {
+    for (AllocList *n; (n = p->next[level]) != 0 && n < e; p = n) {
+    }
+    prev[level] = p;
+  }
+  return (head->levels == 0) ?  0 : prev[0]->next[0];
+}
+
+// Insert element *e into AllocList *head.  Set prev[] as LLA_SkiplistSearch.
+// Requires that e->levels be previously set by the caller (using
+// LLA_SkiplistLevels())
+static void LLA_SkiplistInsert(AllocList *head, AllocList *e,
+                               AllocList **prev) {
+  LLA_SkiplistSearch(head, e, prev);
+  for (; head->levels < e->levels; head->levels++) { // extend prev pointers
+    prev[head->levels] = head;                       // to all *e's levels
+  }
+  for (int i = 0; i != e->levels; i++) { // add element to list
+    e->next[i] = prev[i]->next[i];
+    prev[i]->next[i] = e;
+  }
+}
+
+// Remove element *e from AllocList *head.  Set prev[] as LLA_SkiplistSearch().
+// Requires that e->levels be previous set by the caller (using
+// LLA_SkiplistLevels())
+static void LLA_SkiplistDelete(AllocList *head, AllocList *e,
+                               AllocList **prev) {
+  AllocList *found = LLA_SkiplistSearch(head, e, prev);
+  RAW_CHECK(e == found, "element not in freelist");
+  for (int i = 0; i != e->levels && prev[i]->next[i] == e; i++) {
+    prev[i]->next[i] = e->next[i];
+  }
+  while (head->levels > 0 && head->next[head->levels - 1] == 0) {
+    head->levels--;   // reduce head->levels if level unused
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Arena implementation
+
+struct LowLevelAlloc::Arena {
+  Arena() : mu(SpinLock::LINKER_INITIALIZED) {} // does nothing; for static init
+  explicit Arena(int) : pagesize(0) {}  // set pagesize to zero explicitly
+                                        // for non-static init
+
+  SpinLock mu;            // protects freelist, allocation_count,
+                          // pagesize, roundup, min_size
+  AllocList freelist;     // head of free list; sorted by addr (under mu)
+  int32 allocation_count; // count of allocated blocks (under mu)
+  int32 flags;            // flags passed to NewArena (ro after init)
+  size_t pagesize;        // ==getpagesize()  (init under mu, then ro)
+  size_t roundup;         // lowest power of 2 >= max(16,sizeof (AllocList))
+                          // (init under mu, then ro)
+  size_t min_size;        // smallest allocation block size
+                          // (init under mu, then ro)
+  PagesAllocator *allocator;
+};
+
+// The default arena, which is used when 0 is passed instead of an Arena
+// pointer.
+static struct LowLevelAlloc::Arena default_arena;
+
+// Non-malloc-hooked arenas: used only to allocate metadata for arenas that
+// do not want malloc hook reporting, so that for them there's no malloc hook
+// reporting even during arena creation.
+static struct LowLevelAlloc::Arena unhooked_arena;
+static struct LowLevelAlloc::Arena unhooked_async_sig_safe_arena;
+
+namespace {
+
+  class DefaultPagesAllocator : public LowLevelAlloc::PagesAllocator {
+  public:
+    virtual ~DefaultPagesAllocator() {};
+    virtual void *MapPages(int32 flags, size_t size);
+    virtual void UnMapPages(int32 flags, void *addr, size_t size);
+  };
+
+}
+
+// magic numbers to identify allocated and unallocated blocks
+static const intptr_t kMagicAllocated = 0x4c833e95;
+static const intptr_t kMagicUnallocated = ~kMagicAllocated;
+
+namespace {
+  class SCOPED_LOCKABLE ArenaLock {
+   public:
+    explicit ArenaLock(LowLevelAlloc::Arena *arena)
+        EXCLUSIVE_LOCK_FUNCTION(arena->mu)
+        : left_(false), mask_valid_(false), arena_(arena) {
+      if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) != 0) {
+      // We've decided not to support async-signal-safe arena use until
+      // there a demonstrated need.  Here's how one could do it though
+      // (would need to be made more portable).
+#if 0
+        sigset_t all;
+        sigfillset(&all);
+        this->mask_valid_ =
+            (pthread_sigmask(SIG_BLOCK, &all, &this->mask_) == 0);
+#else
+        RAW_CHECK(false, "We do not yet support async-signal-safe arena.");
+#endif
+      }
+      this->arena_->mu.Lock();
+    }
+    ~ArenaLock() { RAW_CHECK(this->left_, "haven't left Arena region"); }
+    void Leave() UNLOCK_FUNCTION() {
+      this->arena_->mu.Unlock();
+#if 0
+      if (this->mask_valid_) {
+        pthread_sigmask(SIG_SETMASK, &this->mask_, 0);
+      }
+#endif
+      this->left_ = true;
+    }
+   private:
+    bool left_;       // whether left region
+    bool mask_valid_;
+#if 0
+    sigset_t mask_;   // old mask of blocked signals
+#endif
+    LowLevelAlloc::Arena *arena_;
+    DISALLOW_COPY_AND_ASSIGN(ArenaLock);
+  };
+} // anonymous namespace
+
+// create an appropriate magic number for an object at "ptr"
+// "magic" should be kMagicAllocated or kMagicUnallocated
+inline static intptr_t Magic(intptr_t magic, AllocList::Header *ptr) {
+  return magic ^ reinterpret_cast(ptr);
+}
+
+// Initialize the fields of an Arena
+static void ArenaInit(LowLevelAlloc::Arena *arena) {
+  if (arena->pagesize == 0) {
+    arena->pagesize = getpagesize();
+    // Round up block sizes to a power of two close to the header size.
+    arena->roundup = 16;
+    while (arena->roundup < sizeof (arena->freelist.header)) {
+      arena->roundup += arena->roundup;
+    }
+    // Don't allocate blocks less than twice the roundup size to avoid tiny
+    // free blocks.
+    arena->min_size = 2 * arena->roundup;
+    arena->freelist.header.size = 0;
+    arena->freelist.header.magic =
+        Magic(kMagicUnallocated, &arena->freelist.header);
+    arena->freelist.header.arena = arena;
+    arena->freelist.levels = 0;
+    memset(arena->freelist.next, 0, sizeof (arena->freelist.next));
+    arena->allocation_count = 0;
+    if (arena == &default_arena) {
+      // Default arena should be hooked, e.g. for heap-checker to trace
+      // pointer chains through objects in the default arena.
+      arena->flags = LowLevelAlloc::kCallMallocHook;
+    } else if (arena == &unhooked_async_sig_safe_arena) {
+      arena->flags = LowLevelAlloc::kAsyncSignalSafe;
+    } else {
+      arena->flags = 0;   // other arenas' flags may be overridden by client,
+                          // but unhooked_arena will have 0 in 'flags'.
+    }
+    arena->allocator = LowLevelAlloc::GetDefaultPagesAllocator();
+  }
+}
+
+// L < meta_data_arena->mu
+LowLevelAlloc::Arena *LowLevelAlloc::NewArena(int32 flags,
+                                              Arena *meta_data_arena) {
+  return NewArenaWithCustomAlloc(flags, meta_data_arena, NULL);
+}
+
+// L < meta_data_arena->mu
+LowLevelAlloc::Arena *LowLevelAlloc::NewArenaWithCustomAlloc(int32 flags,
+                                                             Arena *meta_data_arena,
+                                                             PagesAllocator *allocator) {
+  RAW_CHECK(meta_data_arena != 0, "must pass a valid arena");
+  if (meta_data_arena == &default_arena) {
+    if ((flags & LowLevelAlloc::kAsyncSignalSafe) != 0) {
+      meta_data_arena = &unhooked_async_sig_safe_arena;
+    } else if ((flags & LowLevelAlloc::kCallMallocHook) == 0) {
+      meta_data_arena = &unhooked_arena;
+    }
+  }
+  // Arena(0) uses the constructor for non-static contexts
+  Arena *result =
+    new (AllocWithArena(sizeof (*result), meta_data_arena)) Arena(0);
+  ArenaInit(result);
+  result->flags = flags;
+  if (allocator) {
+    result->allocator = allocator;
+  }
+  return result;
+}
+
+// L < arena->mu, L < arena->arena->mu
+bool LowLevelAlloc::DeleteArena(Arena *arena) {
+  RAW_CHECK(arena != 0 && arena != &default_arena && arena != &unhooked_arena,
+            "may not delete default arena");
+  ArenaLock section(arena);
+  bool empty = (arena->allocation_count == 0);
+  section.Leave();
+  if (empty) {
+    while (arena->freelist.next[0] != 0) {
+      AllocList *region = arena->freelist.next[0];
+      size_t size = region->header.size;
+      arena->freelist.next[0] = region->next[0];
+      RAW_CHECK(region->header.magic ==
+                Magic(kMagicUnallocated, ®ion->header),
+                "bad magic number in DeleteArena()");
+      RAW_CHECK(region->header.arena == arena,
+                "bad arena pointer in DeleteArena()");
+      RAW_CHECK(size % arena->pagesize == 0,
+                "empty arena has non-page-aligned block size");
+      RAW_CHECK(reinterpret_cast(region) % arena->pagesize == 0,
+                "empty arena has non-page-aligned block");
+      int munmap_result;
+      if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) == 0) {
+        munmap_result = munmap(region, size);
+      } else {
+        munmap_result = MallocHook::UnhookedMUnmap(region, size);
+      }
+      RAW_CHECK(munmap_result == 0,
+                "LowLevelAlloc::DeleteArena:  munmap failed address");
+    }
+    Free(arena);
+  }
+  return empty;
+}
+
+// ---------------------------------------------------------------------------
+
+// Return value rounded up to next multiple of align.
+// align must be a power of two.
+static intptr_t RoundUp(intptr_t addr, intptr_t align) {
+  return (addr + align - 1) & ~(align - 1);
+}
+
+// Equivalent to "return prev->next[i]" but with sanity checking
+// that the freelist is in the correct order, that it
+// consists of regions marked "unallocated", and that no two regions
+// are adjacent in memory (they should have been coalesced).
+// L < arena->mu
+static AllocList *Next(int i, AllocList *prev, LowLevelAlloc::Arena *arena) {
+  RAW_CHECK(i < prev->levels, "too few levels in Next()");
+  AllocList *next = prev->next[i];
+  if (next != 0) {
+    RAW_CHECK(next->header.magic == Magic(kMagicUnallocated, &next->header),
+              "bad magic number in Next()");
+    RAW_CHECK(next->header.arena == arena,
+              "bad arena pointer in Next()");
+    if (prev != &arena->freelist) {
+      RAW_CHECK(prev < next, "unordered freelist");
+      RAW_CHECK(reinterpret_cast(prev) + prev->header.size <
+                reinterpret_cast(next), "malformed freelist");
+    }
+  }
+  return next;
+}
+
+// Coalesce list item "a" with its successor if they are adjacent.
+static void Coalesce(AllocList *a) {
+  AllocList *n = a->next[0];
+  if (n != 0 && reinterpret_cast(a) + a->header.size ==
+                    reinterpret_cast(n)) {
+    LowLevelAlloc::Arena *arena = a->header.arena;
+    a->header.size += n->header.size;
+    n->header.magic = 0;
+    n->header.arena = 0;
+    AllocList *prev[kMaxLevel];
+    LLA_SkiplistDelete(&arena->freelist, n, prev);
+    LLA_SkiplistDelete(&arena->freelist, a, prev);
+    a->levels = LLA_SkiplistLevels(a->header.size, arena->min_size, true);
+    LLA_SkiplistInsert(&arena->freelist, a, prev);
+  }
+}
+
+// Adds block at location "v" to the free list
+// L >= arena->mu
+static void AddToFreelist(void *v, LowLevelAlloc::Arena *arena) {
+  AllocList *f = reinterpret_cast(
+                        reinterpret_cast(v) - sizeof (f->header));
+  RAW_CHECK(f->header.magic == Magic(kMagicAllocated, &f->header),
+            "bad magic number in AddToFreelist()");
+  RAW_CHECK(f->header.arena == arena,
+            "bad arena pointer in AddToFreelist()");
+  f->levels = LLA_SkiplistLevels(f->header.size, arena->min_size, true);
+  AllocList *prev[kMaxLevel];
+  LLA_SkiplistInsert(&arena->freelist, f, prev);
+  f->header.magic = Magic(kMagicUnallocated, &f->header);
+  Coalesce(f);                  // maybe coalesce with successor
+  Coalesce(prev[0]);            // maybe coalesce with predecessor
+}
+
+// Frees storage allocated by LowLevelAlloc::Alloc().
+// L < arena->mu
+void LowLevelAlloc::Free(void *v) {
+  if (v != 0) {
+    AllocList *f = reinterpret_cast(
+                        reinterpret_cast(v) - sizeof (f->header));
+    RAW_CHECK(f->header.magic == Magic(kMagicAllocated, &f->header),
+              "bad magic number in Free()");
+    LowLevelAlloc::Arena *arena = f->header.arena;
+    if ((arena->flags & kCallMallocHook) != 0) {
+      MallocHook::InvokeDeleteHook(v);
+    }
+    ArenaLock section(arena);
+    AddToFreelist(v, arena);
+    RAW_CHECK(arena->allocation_count > 0, "nothing in arena to free");
+    arena->allocation_count--;
+    section.Leave();
+  }
+}
+
+// allocates and returns a block of size bytes, to be freed with Free()
+// L < arena->mu
+static void *DoAllocWithArena(size_t request, LowLevelAlloc::Arena *arena) {
+  void *result = 0;
+  if (request != 0) {
+    AllocList *s;       // will point to region that satisfies request
+    ArenaLock section(arena);
+    ArenaInit(arena);
+    // round up with header
+    size_t req_rnd = RoundUp(request + sizeof (s->header), arena->roundup);
+    for (;;) {      // loop until we find a suitable region
+      // find the minimum levels that a block of this size must have
+      int i = LLA_SkiplistLevels(req_rnd, arena->min_size, false) - 1;
+      if (i < arena->freelist.levels) {   // potential blocks exist
+        AllocList *before = &arena->freelist;  // predecessor of s
+        while ((s = Next(i, before, arena)) != 0 && s->header.size < req_rnd) {
+          before = s;
+        }
+        if (s != 0) {       // we found a region
+          break;
+        }
+      }
+      // we unlock before mmap() both because mmap() may call a callback hook,
+      // and because it may be slow.
+      arena->mu.Unlock();
+      // mmap generous 64K chunks to decrease
+      // the chances/impact of fragmentation:
+      size_t new_pages_size = RoundUp(req_rnd, arena->pagesize * 16);
+      void *new_pages = arena->allocator->MapPages(arena->flags, new_pages_size);
+      arena->mu.Lock();
+      s = reinterpret_cast(new_pages);
+      s->header.size = new_pages_size;
+      // Pretend the block is allocated; call AddToFreelist() to free it.
+      s->header.magic = Magic(kMagicAllocated, &s->header);
+      s->header.arena = arena;
+      AddToFreelist(&s->levels, arena);  // insert new region into free list
+    }
+    AllocList *prev[kMaxLevel];
+    LLA_SkiplistDelete(&arena->freelist, s, prev);    // remove from free list
+    // s points to the first free region that's big enough
+    if (req_rnd + arena->min_size <= s->header.size) {  // big enough to split
+      AllocList *n = reinterpret_cast
+                        (req_rnd + reinterpret_cast(s));
+      n->header.size = s->header.size - req_rnd;
+      n->header.magic = Magic(kMagicAllocated, &n->header);
+      n->header.arena = arena;
+      s->header.size = req_rnd;
+      AddToFreelist(&n->levels, arena);
+    }
+    s->header.magic = Magic(kMagicAllocated, &s->header);
+    RAW_CHECK(s->header.arena == arena, "");
+    arena->allocation_count++;
+    section.Leave();
+    result = &s->levels;
+  }
+  return result;
+}
+
+void *LowLevelAlloc::Alloc(size_t request) {
+  void *result = DoAllocWithArena(request, &default_arena);
+  if ((default_arena.flags & kCallMallocHook) != 0) {
+    // this call must be directly in the user-called allocator function
+    // for MallocHook::GetCallerStackTrace to work properly
+    MallocHook::InvokeNewHook(result, request);
+  }
+  return result;
+}
+
+void *LowLevelAlloc::AllocWithArena(size_t request, Arena *arena) {
+  RAW_CHECK(arena != 0, "must pass a valid arena");
+  void *result = DoAllocWithArena(request, arena);
+  if ((arena->flags & kCallMallocHook) != 0) {
+    // this call must be directly in the user-called allocator function
+    // for MallocHook::GetCallerStackTrace to work properly
+    MallocHook::InvokeNewHook(result, request);
+  }
+  return result;
+}
+
+LowLevelAlloc::Arena *LowLevelAlloc::DefaultArena() {
+  return &default_arena;
+}
+
+static DefaultPagesAllocator *default_pages_allocator;
+static union {
+  char chars[sizeof(DefaultPagesAllocator)];
+  void *ptr;
+} debug_pages_allocator_space;
+
+LowLevelAlloc::PagesAllocator *LowLevelAlloc::GetDefaultPagesAllocator(void) {
+  if (default_pages_allocator) {
+    return default_pages_allocator;
+  }
+  default_pages_allocator = new (debug_pages_allocator_space.chars) DefaultPagesAllocator();
+  return default_pages_allocator;
+}
+
+void *DefaultPagesAllocator::MapPages(int32 flags, size_t size) {
+  void *new_pages;
+  if ((flags & LowLevelAlloc::kAsyncSignalSafe) != 0) {
+    new_pages = MallocHook::UnhookedMMap(0, size,
+                                         PROT_WRITE|PROT_READ,
+                                         MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+  } else {
+    new_pages = mmap(0, size,
+                     PROT_WRITE|PROT_READ,
+                     MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+  }
+  RAW_CHECK(new_pages != MAP_FAILED, "mmap error");
+
+  return new_pages;
+}
+
+void DefaultPagesAllocator::UnMapPages(int32 flags, void *region, size_t size) {
+  int munmap_result;
+  if ((flags & LowLevelAlloc::kAsyncSignalSafe) == 0) {
+    munmap_result = munmap(region, size);
+  } else {
+    munmap_result = MallocHook::UnhookedMUnmap(region, size);
+  }
+  RAW_CHECK(munmap_result == 0,
+            "LowLevelAlloc::DeleteArena: munmap failed address");
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/low_level_alloc.h b/trunk/3rdparty/gperftools-2-fit/src/base/low_level_alloc.h
new file mode 100644
index 000000000..406bfff0c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/low_level_alloc.h
@@ -0,0 +1,120 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if !defined(_BASE_LOW_LEVEL_ALLOC_H_)
+#define _BASE_LOW_LEVEL_ALLOC_H_
+
+// A simple thread-safe memory allocator that does not depend on
+// mutexes or thread-specific data.  It is intended to be used
+// sparingly, and only when malloc() would introduce an unwanted
+// dependency, such as inside the heap-checker.
+
+#include 
+#include              // for size_t
+#include "base/basictypes.h"
+
+class LowLevelAlloc {
+ public:
+  class PagesAllocator {
+  public:
+    virtual ~PagesAllocator();
+    virtual void *MapPages(int32 flags, size_t size) = 0;
+    virtual void UnMapPages(int32 flags, void *addr, size_t size) = 0;
+  };
+
+  static PagesAllocator *GetDefaultPagesAllocator(void);
+
+  struct Arena;       // an arena from which memory may be allocated
+
+  // Returns a pointer to a block of at least "request" bytes
+  // that have been newly allocated from the specific arena.
+  // for Alloc() call the DefaultArena() is used.
+  // Returns 0 if passed request==0.
+  // Does not return 0 under other circumstances; it crashes if memory
+  // is not available.
+  static void *Alloc(size_t request)
+    ATTRIBUTE_SECTION(malloc_hook);
+  static void *AllocWithArena(size_t request, Arena *arena)
+    ATTRIBUTE_SECTION(malloc_hook);
+
+  // Deallocates a region of memory that was previously allocated with
+  // Alloc().   Does nothing if passed 0.   "s" must be either 0,
+  // or must have been returned from a call to Alloc() and not yet passed to
+  // Free() since that call to Alloc().  The space is returned to the arena
+  // from which it was allocated.
+  static void Free(void *s) ATTRIBUTE_SECTION(malloc_hook);
+
+    // ATTRIBUTE_SECTION(malloc_hook) for Alloc* and Free
+    // are to put all callers of MallocHook::Invoke* in this module
+    // into special section,
+    // so that MallocHook::GetCallerStackTrace can function accurately.
+
+  // Create a new arena.
+  // The root metadata for the new arena is allocated in the
+  // meta_data_arena; the DefaultArena() can be passed for meta_data_arena.
+  // These values may be ored into flags:
+  enum {
+    // Report calls to Alloc() and Free() via the MallocHook interface.
+    // Set in the DefaultArena.
+    kCallMallocHook = 0x0001,
+
+    // Make calls to Alloc(), Free() be async-signal-safe.  Not set in
+    // DefaultArena().
+    kAsyncSignalSafe = 0x0002,
+
+    // When used with DefaultArena(), the NewArena() and DeleteArena() calls
+    // obey the flags given explicitly in the NewArena() call, even if those
+    // flags differ from the settings in DefaultArena().  So the call
+    // NewArena(kAsyncSignalSafe, DefaultArena()) is itself async-signal-safe,
+    // as well as generatating an arena that provides async-signal-safe
+    // Alloc/Free.
+  };
+  static Arena *NewArena(int32 flags, Arena *meta_data_arena);
+
+  // note: pages allocator will never be destroyed and allocated pages will never be freed
+  // When allocator is NULL, it's same as NewArena
+  static Arena *NewArenaWithCustomAlloc(int32 flags, Arena *meta_data_arena, PagesAllocator *allocator);
+
+  // Destroys an arena allocated by NewArena and returns true,
+  // provided no allocated blocks remain in the arena.
+  // If allocated blocks remain in the arena, does nothing and
+  // returns false.
+  // It is illegal to attempt to destroy the DefaultArena().
+  static bool DeleteArena(Arena *arena);
+
+  // The default arena that always exists.
+  static Arena *DefaultArena();
+
+ private:
+  LowLevelAlloc();      // no instances
+};
+
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/simple_mutex.h b/trunk/3rdparty/gperftools-2-fit/src/base/simple_mutex.h
new file mode 100644
index 000000000..5913b9e61
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/simple_mutex.h
@@ -0,0 +1,332 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---
+// Author: Craig Silverstein.
+//
+// A simple mutex wrapper, supporting locks and read-write locks.
+// You should assume the locks are *not* re-entrant.
+//
+// To use: you should define the following macros in your configure.ac:
+//   ACX_PTHREAD
+//   AC_RWLOCK
+// The latter is defined in ../autoconf.
+//
+// This class is meant to be internal-only and should be wrapped by an
+// internal namespace.  Before you use this module, please give the
+// name of your internal namespace for this module.  Or, if you want
+// to expose it, you'll want to move it to the Google namespace.  We
+// cannot put this class in global namespace because there can be some
+// problems when we have multiple versions of Mutex in each shared object.
+//
+// NOTE: TryLock() is broken for NO_THREADS mode, at least in NDEBUG
+//       mode.
+//
+// CYGWIN NOTE: Cygwin support for rwlock seems to be buggy:
+//    http://www.cygwin.com/ml/cygwin/2008-12/msg00017.html
+// Because of that, we might as well use windows locks for
+// cygwin.  They seem to be more reliable than the cygwin pthreads layer.
+//
+// TRICKY IMPLEMENTATION NOTE:
+// This class is designed to be safe to use during
+// dynamic-initialization -- that is, by global constructors that are
+// run before main() starts.  The issue in this case is that
+// dynamic-initialization happens in an unpredictable order, and it
+// could be that someone else's dynamic initializer could call a
+// function that tries to acquire this mutex -- but that all happens
+// before this mutex's constructor has run.  (This can happen even if
+// the mutex and the function that uses the mutex are in the same .cc
+// file.)  Basically, because Mutex does non-trivial work in its
+// constructor, it's not, in the naive implementation, safe to use
+// before dynamic initialization has run on it.
+//
+// The solution used here is to pair the actual mutex primitive with a
+// bool that is set to true when the mutex is dynamically initialized.
+// (Before that it's false.)  Then we modify all mutex routines to
+// look at the bool, and not try to lock/unlock until the bool makes
+// it to true (which happens after the Mutex constructor has run.)
+//
+// This works because before main() starts -- particularly, during
+// dynamic initialization -- there are no threads, so a) it's ok that
+// the mutex operations are a no-op, since we don't need locking then
+// anyway; and b) we can be quite confident our bool won't change
+// state between a call to Lock() and a call to Unlock() (that would
+// require a global constructor in one translation unit to call Lock()
+// and another global constructor in another translation unit to call
+// Unlock() later, which is pretty perverse).
+//
+// That said, it's tricky, and can conceivably fail; it's safest to
+// avoid trying to acquire a mutex in a global constructor, if you
+// can.  One way it can fail is that a really smart compiler might
+// initialize the bool to true at static-initialization time (too
+// early) rather than at dynamic-initialization time.  To discourage
+// that, we set is_safe_ to true in code (not the constructor
+// colon-initializer) and set it to true via a function that always
+// evaluates to true, but that the compiler can't know always
+// evaluates to true.  This should be good enough.
+//
+// A related issue is code that could try to access the mutex
+// after it's been destroyed in the global destructors (because
+// the Mutex global destructor runs before some other global
+// destructor, that tries to acquire the mutex).  The way we
+// deal with this is by taking a constructor arg that global
+// mutexes should pass in, that causes the destructor to do no
+// work.  We still depend on the compiler not doing anything
+// weird to a Mutex's memory after it is destroyed, but for a
+// static global variable, that's pretty safe.
+
+#ifndef GOOGLE_MUTEX_H_
+#define GOOGLE_MUTEX_H_
+
+#include 
+
+#if defined(NO_THREADS)
+  typedef int MutexType;      // to keep a lock-count
+#elif defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+# ifndef WIN32_LEAN_AND_MEAN
+#   define WIN32_LEAN_AND_MEAN  // We only need minimal includes
+# endif
+  // We need Windows NT or later for TryEnterCriticalSection().  If you
+  // don't need that functionality, you can remove these _WIN32_WINNT
+  // lines, and change TryLock() to assert(0) or something.
+# ifndef _WIN32_WINNT
+#   define _WIN32_WINNT 0x0400
+# endif
+# include 
+  typedef CRITICAL_SECTION MutexType;
+#elif defined(HAVE_PTHREAD) && defined(HAVE_RWLOCK)
+  // Needed for pthread_rwlock_*.  If it causes problems, you could take it
+  // out, but then you'd have to unset HAVE_RWLOCK (at least on linux -- it
+  // *does* cause problems for FreeBSD, or MacOSX, but isn't needed
+  // for locking there.)
+# ifdef __linux__
+#   define _XOPEN_SOURCE 500  // may be needed to get the rwlock calls
+# endif
+# include 
+  typedef pthread_rwlock_t MutexType;
+#elif defined(HAVE_PTHREAD)
+# include 
+  typedef pthread_mutex_t MutexType;
+#else
+# error Need to implement mutex.h for your architecture, or #define NO_THREADS
+#endif
+
+#include 
+#include       // for abort()
+
+#define MUTEX_NAMESPACE perftools_mutex_namespace
+
+namespace MUTEX_NAMESPACE {
+
+class Mutex {
+ public:
+  // This is used for the single-arg constructor
+  enum LinkerInitialized { LINKER_INITIALIZED };
+
+  // Create a Mutex that is not held by anybody.  This constructor is
+  // typically used for Mutexes allocated on the heap or the stack.
+  inline Mutex();
+  // This constructor should be used for global, static Mutex objects.
+  // It inhibits work being done by the destructor, which makes it
+  // safer for code that tries to acqiure this mutex in their global
+  // destructor.
+  inline Mutex(LinkerInitialized);
+
+  // Destructor
+  inline ~Mutex();
+
+  inline void Lock();    // Block if needed until free then acquire exclusively
+  inline void Unlock();  // Release a lock acquired via Lock()
+  inline bool TryLock(); // If free, Lock() and return true, else return false
+  // Note that on systems that don't support read-write locks, these may
+  // be implemented as synonyms to Lock() and Unlock().  So you can use
+  // these for efficiency, but don't use them anyplace where being able
+  // to do shared reads is necessary to avoid deadlock.
+  inline void ReaderLock();   // Block until free or shared then acquire a share
+  inline void ReaderUnlock(); // Release a read share of this Mutex
+  inline void WriterLock() { Lock(); }     // Acquire an exclusive lock
+  inline void WriterUnlock() { Unlock(); } // Release a lock from WriterLock()
+
+ private:
+  MutexType mutex_;
+  // We want to make sure that the compiler sets is_safe_ to true only
+  // when we tell it to, and never makes assumptions is_safe_ is
+  // always true.  volatile is the most reliable way to do that.
+  volatile bool is_safe_;
+  // This indicates which constructor was called.
+  bool destroy_;
+
+  inline void SetIsSafe() { is_safe_ = true; }
+
+  // Catch the error of writing Mutex when intending MutexLock.
+  Mutex(Mutex* /*ignored*/) {}
+  // Disallow "evil" constructors
+  Mutex(const Mutex&);
+  void operator=(const Mutex&);
+};
+
+// Now the implementation of Mutex for various systems
+#if defined(NO_THREADS)
+
+// When we don't have threads, we can be either reading or writing,
+// but not both.  We can have lots of readers at once (in no-threads
+// mode, that's most likely to happen in recursive function calls),
+// but only one writer.  We represent this by having mutex_ be -1 when
+// writing and a number > 0 when reading (and 0 when no lock is held).
+//
+// In debug mode, we assert these invariants, while in non-debug mode
+// we do nothing, for efficiency.  That's why everything is in an
+// assert.
+
+Mutex::Mutex() : mutex_(0) { }
+Mutex::Mutex(Mutex::LinkerInitialized) : mutex_(0) { }
+Mutex::~Mutex()            { assert(mutex_ == 0); }
+void Mutex::Lock()         { assert(--mutex_ == -1); }
+void Mutex::Unlock()       { assert(mutex_++ == -1); }
+bool Mutex::TryLock()      { if (mutex_) return false; Lock(); return true; }
+void Mutex::ReaderLock()   { assert(++mutex_ > 0); }
+void Mutex::ReaderUnlock() { assert(mutex_-- > 0); }
+
+#elif defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+
+Mutex::Mutex() : destroy_(true) {
+  InitializeCriticalSection(&mutex_);
+  SetIsSafe();
+}
+Mutex::Mutex(LinkerInitialized) : destroy_(false) {
+  InitializeCriticalSection(&mutex_);
+  SetIsSafe();
+}
+Mutex::~Mutex()            { if (destroy_) DeleteCriticalSection(&mutex_); }
+void Mutex::Lock()         { if (is_safe_) EnterCriticalSection(&mutex_); }
+void Mutex::Unlock()       { if (is_safe_) LeaveCriticalSection(&mutex_); }
+bool Mutex::TryLock()      { return is_safe_ ?
+                                 TryEnterCriticalSection(&mutex_) != 0 : true; }
+void Mutex::ReaderLock()   { Lock(); }      // we don't have read-write locks
+void Mutex::ReaderUnlock() { Unlock(); }
+
+#elif defined(HAVE_PTHREAD) && defined(HAVE_RWLOCK)
+
+#define SAFE_PTHREAD(fncall)  do {   /* run fncall if is_safe_ is true */  \
+  if (is_safe_ && fncall(&mutex_) != 0) abort();                           \
+} while (0)
+
+Mutex::Mutex() : destroy_(true) {
+  SetIsSafe();
+  if (is_safe_ && pthread_rwlock_init(&mutex_, NULL) != 0) abort();
+}
+Mutex::Mutex(Mutex::LinkerInitialized) : destroy_(false) {
+  SetIsSafe();
+  if (is_safe_ && pthread_rwlock_init(&mutex_, NULL) != 0) abort();
+}
+Mutex::~Mutex()       { if (destroy_) SAFE_PTHREAD(pthread_rwlock_destroy); }
+void Mutex::Lock()         { SAFE_PTHREAD(pthread_rwlock_wrlock); }
+void Mutex::Unlock()       { SAFE_PTHREAD(pthread_rwlock_unlock); }
+bool Mutex::TryLock()      { return is_safe_ ?
+                               pthread_rwlock_trywrlock(&mutex_) == 0 : true; }
+void Mutex::ReaderLock()   { SAFE_PTHREAD(pthread_rwlock_rdlock); }
+void Mutex::ReaderUnlock() { SAFE_PTHREAD(pthread_rwlock_unlock); }
+#undef SAFE_PTHREAD
+
+#elif defined(HAVE_PTHREAD)
+
+#define SAFE_PTHREAD(fncall)  do {   /* run fncall if is_safe_ is true */  \
+  if (is_safe_ && fncall(&mutex_) != 0) abort();                           \
+} while (0)
+
+Mutex::Mutex() : destroy_(true) {
+  SetIsSafe();
+  if (is_safe_ && pthread_mutex_init(&mutex_, NULL) != 0) abort();
+}
+Mutex::Mutex(Mutex::LinkerInitialized) : destroy_(false) {
+  SetIsSafe();
+  if (is_safe_ && pthread_mutex_init(&mutex_, NULL) != 0) abort();
+}
+Mutex::~Mutex()       { if (destroy_) SAFE_PTHREAD(pthread_mutex_destroy); }
+void Mutex::Lock()         { SAFE_PTHREAD(pthread_mutex_lock); }
+void Mutex::Unlock()       { SAFE_PTHREAD(pthread_mutex_unlock); }
+bool Mutex::TryLock()      { return is_safe_ ?
+                                 pthread_mutex_trylock(&mutex_) == 0 : true; }
+void Mutex::ReaderLock()   { Lock(); }
+void Mutex::ReaderUnlock() { Unlock(); }
+#undef SAFE_PTHREAD
+
+#endif
+
+// --------------------------------------------------------------------------
+// Some helper classes
+
+// MutexLock(mu) acquires mu when constructed and releases it when destroyed.
+class MutexLock {
+ public:
+  explicit MutexLock(Mutex *mu) : mu_(mu) { mu_->Lock(); }
+  ~MutexLock() { mu_->Unlock(); }
+ private:
+  Mutex * const mu_;
+  // Disallow "evil" constructors
+  MutexLock(const MutexLock&);
+  void operator=(const MutexLock&);
+};
+
+// ReaderMutexLock and WriterMutexLock do the same, for rwlocks
+class ReaderMutexLock {
+ public:
+  explicit ReaderMutexLock(Mutex *mu) : mu_(mu) { mu_->ReaderLock(); }
+  ~ReaderMutexLock() { mu_->ReaderUnlock(); }
+ private:
+  Mutex * const mu_;
+  // Disallow "evil" constructors
+  ReaderMutexLock(const ReaderMutexLock&);
+  void operator=(const ReaderMutexLock&);
+};
+
+class WriterMutexLock {
+ public:
+  explicit WriterMutexLock(Mutex *mu) : mu_(mu) { mu_->WriterLock(); }
+  ~WriterMutexLock() { mu_->WriterUnlock(); }
+ private:
+  Mutex * const mu_;
+  // Disallow "evil" constructors
+  WriterMutexLock(const WriterMutexLock&);
+  void operator=(const WriterMutexLock&);
+};
+
+// Catch bug where variable name is omitted, e.g. MutexLock (&mu);
+#define MutexLock(x) COMPILE_ASSERT(0, mutex_lock_decl_missing_var_name)
+#define ReaderMutexLock(x) COMPILE_ASSERT(0, rmutex_lock_decl_missing_var_name)
+#define WriterMutexLock(x) COMPILE_ASSERT(0, wmutex_lock_decl_missing_var_name)
+
+}  // namespace MUTEX_NAMESPACE
+
+using namespace MUTEX_NAMESPACE;
+
+#undef MUTEX_NAMESPACE
+
+#endif  /* #define GOOGLE_SIMPLE_MUTEX_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/spinlock.cc b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock.cc
new file mode 100644
index 000000000..d2a9e1c23
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock.cc
@@ -0,0 +1,129 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ */
+
+#include 
+#include "base/spinlock.h"
+#include "base/spinlock_internal.h"
+#include "base/sysinfo.h"   /* for GetSystemCPUsCount() */
+
+// NOTE on the Lock-state values:
+//
+// kSpinLockFree represents the unlocked state
+// kSpinLockHeld represents the locked state with no waiters
+// kSpinLockSleeper represents the locked state with waiters
+
+static int adaptive_spin_count = 0;
+
+const base::LinkerInitialized SpinLock::LINKER_INITIALIZED =
+    base::LINKER_INITIALIZED;
+
+namespace {
+struct SpinLock_InitHelper {
+  SpinLock_InitHelper() {
+    // On multi-cpu machines, spin for longer before yielding
+    // the processor or sleeping.  Reduces idle time significantly.
+    if (GetSystemCPUsCount() > 1) {
+      adaptive_spin_count = 1000;
+    }
+  }
+};
+
+// Hook into global constructor execution:
+// We do not do adaptive spinning before that,
+// but nothing lock-intensive should be going on at that time.
+static SpinLock_InitHelper init_helper;
+
+inline void SpinlockPause(void) {
+#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+  __asm__ __volatile__("rep; nop" : : );
+#endif
+}
+
+}  // unnamed namespace
+
+// Monitor the lock to see if its value changes within some time
+// period (adaptive_spin_count loop iterations). The last value read
+// from the lock is returned from the method.
+Atomic32 SpinLock::SpinLoop() {
+  int c = adaptive_spin_count;
+  while (base::subtle::NoBarrier_Load(&lockword_) != kSpinLockFree && --c > 0) {
+    SpinlockPause();
+  }
+  return base::subtle::Acquire_CompareAndSwap(&lockword_, kSpinLockFree,
+                                              kSpinLockSleeper);
+}
+
+void SpinLock::SlowLock() {
+  Atomic32 lock_value = SpinLoop();
+
+  int lock_wait_call_count = 0;
+  while (lock_value != kSpinLockFree) {
+    // If the lock is currently held, but not marked as having a sleeper, mark
+    // it as having a sleeper.
+    if (lock_value == kSpinLockHeld) {
+      // Here, just "mark" that the thread is going to sleep.  Don't store the
+      // lock wait time in the lock as that will cause the current lock
+      // owner to think it experienced contention.
+      lock_value = base::subtle::Acquire_CompareAndSwap(&lockword_,
+                                                        kSpinLockHeld,
+                                                        kSpinLockSleeper);
+      if (lock_value == kSpinLockHeld) {
+        // Successfully transitioned to kSpinLockSleeper.  Pass
+        // kSpinLockSleeper to the SpinLockDelay routine to properly indicate
+        // the last lock_value observed.
+        lock_value = kSpinLockSleeper;
+      } else if (lock_value == kSpinLockFree) {
+        // Lock is free again, so try and acquire it before sleeping.  The
+        // new lock state will be the number of cycles this thread waited if
+        // this thread obtains the lock.
+        lock_value = base::subtle::Acquire_CompareAndSwap(&lockword_,
+                                                          kSpinLockFree,
+                                                          kSpinLockSleeper);
+        continue;  // skip the delay at the end of the loop
+      }
+    }
+
+    // Wait for an OS specific delay.
+    base::internal::SpinLockDelay(&lockword_, lock_value,
+                                  ++lock_wait_call_count);
+    // Spin again after returning from the wait routine to give this thread
+    // some chance of obtaining the lock.
+    lock_value = SpinLoop();
+  }
+}
+
+void SpinLock::SlowUnlock() {
+  // wake waiter if necessary
+  base::internal::SpinLockWake(&lockword_, false);
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/spinlock.h b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock.h
new file mode 100644
index 000000000..118f54133
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock.h
@@ -0,0 +1,132 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ */
+
+// SpinLock is async signal safe.
+// If used within a signal handler, all lock holders
+// should block the signal even outside the signal handler.
+
+#ifndef BASE_SPINLOCK_H_
+#define BASE_SPINLOCK_H_
+
+#include 
+#include "base/atomicops.h"
+#include "base/basictypes.h"
+#include "base/dynamic_annotations.h"
+#include "base/thread_annotations.h"
+
+class LOCKABLE SpinLock {
+ public:
+  SpinLock() : lockword_(kSpinLockFree) { }
+
+  // Special constructor for use with static SpinLock objects.  E.g.,
+  //
+  //    static SpinLock lock(base::LINKER_INITIALIZED);
+  //
+  // When intialized using this constructor, we depend on the fact
+  // that the linker has already initialized the memory appropriately.
+  // A SpinLock constructed like this can be freely used from global
+  // initializers without worrying about the order in which global
+  // initializers run.
+  explicit SpinLock(base::LinkerInitialized /*x*/) {
+    // Does nothing; lockword_ is already initialized
+  }
+
+  // Acquire this SpinLock.
+  inline void Lock() EXCLUSIVE_LOCK_FUNCTION() {
+    if (base::subtle::Acquire_CompareAndSwap(&lockword_, kSpinLockFree,
+                                             kSpinLockHeld) != kSpinLockFree) {
+      SlowLock();
+    }
+  }
+
+  // Try to acquire this SpinLock without blocking and return true if the
+  // acquisition was successful.  If the lock was not acquired, false is
+  // returned.  If this SpinLock is free at the time of the call, TryLock
+  // will return true with high probability.
+  inline bool TryLock() EXCLUSIVE_TRYLOCK_FUNCTION(true) {
+    bool res =
+        (base::subtle::Acquire_CompareAndSwap(&lockword_, kSpinLockFree,
+                                              kSpinLockHeld) == kSpinLockFree);
+    return res;
+  }
+
+  // Release this SpinLock, which must be held by the calling thread.
+  inline void Unlock() UNLOCK_FUNCTION() {
+    uint64 prev_value = static_cast(
+        base::subtle::Release_AtomicExchange(&lockword_, kSpinLockFree));
+    if (prev_value != kSpinLockHeld) {
+      // Speed the wakeup of any waiter.
+      SlowUnlock();
+    }
+  }
+
+  // Determine if the lock is held.  When the lock is held by the invoking
+  // thread, true will always be returned. Intended to be used as
+  // CHECK(lock.IsHeld()).
+  inline bool IsHeld() const {
+    return base::subtle::NoBarrier_Load(&lockword_) != kSpinLockFree;
+  }
+
+  static const base::LinkerInitialized LINKER_INITIALIZED;  // backwards compat
+ private:
+  enum { kSpinLockFree = 0 };
+  enum { kSpinLockHeld = 1 };
+  enum { kSpinLockSleeper = 2 };
+
+  volatile Atomic32 lockword_;
+
+  void SlowLock();
+  void SlowUnlock();
+  Atomic32 SpinLoop();
+
+  DISALLOW_COPY_AND_ASSIGN(SpinLock);
+};
+
+// Corresponding locker object that arranges to acquire a spinlock for
+// the duration of a C++ scope.
+class SCOPED_LOCKABLE SpinLockHolder {
+ private:
+  SpinLock* lock_;
+ public:
+  inline explicit SpinLockHolder(SpinLock* l) EXCLUSIVE_LOCK_FUNCTION(l)
+      : lock_(l) {
+    l->Lock();
+  }
+  inline ~SpinLockHolder() UNLOCK_FUNCTION() { lock_->Unlock(); }
+};
+// Catch bug where variable name is omitted, e.g. SpinLockHolder (&lock);
+#define SpinLockHolder(x) COMPILE_ASSERT(0, spin_lock_decl_missing_var_name)
+
+
+#endif  // BASE_SPINLOCK_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_internal.cc b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_internal.cc
new file mode 100644
index 000000000..d9629717b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_internal.cc
@@ -0,0 +1,102 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2010, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// The OS-specific header included below must provide two calls:
+// base::internal::SpinLockDelay() and base::internal::SpinLockWake().
+// See spinlock_internal.h for the spec of SpinLockWake().
+
+// void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop)
+// SpinLockDelay() generates an apprproate spin delay on iteration "loop" of a
+// spin loop on location *w, whose previously observed value was "value".
+// SpinLockDelay() may do nothing, may yield the CPU, may sleep a clock tick,
+// or may wait for a delay that can be truncated by a call to SpinlockWake(w).
+// In all cases, it must return in bounded time even if SpinlockWake() is not
+// called.
+
+#include "base/spinlock_internal.h"
+
+// forward declaration for use by spinlock_*-inl.h
+namespace base { namespace internal { static int SuggestedDelayNS(int loop); }}
+
+#if defined(_WIN32)
+#include "base/spinlock_win32-inl.h"
+#elif defined(__linux__)
+#include "base/spinlock_linux-inl.h"
+#else
+#include "base/spinlock_posix-inl.h"
+#endif
+
+namespace base {
+namespace internal {
+
+// Return a suggested delay in nanoseconds for iteration number "loop"
+static int SuggestedDelayNS(int loop) {
+  // Weak pseudo-random number generator to get some spread between threads
+  // when many are spinning.
+#ifdef BASE_HAS_ATOMIC64
+  static base::subtle::Atomic64 rand;
+  uint64 r = base::subtle::NoBarrier_Load(&rand);
+  r = 0x5deece66dLL * r + 0xb;   // numbers from nrand48()
+  base::subtle::NoBarrier_Store(&rand, r);
+
+  r <<= 16;   // 48-bit random number now in top 48-bits.
+  if (loop < 0 || loop > 32) {   // limit loop to 0..32
+    loop = 32;
+  }
+  // loop>>3 cannot exceed 4 because loop cannot exceed 32.
+  // Select top 20..24 bits of lower 48 bits,
+  // giving approximately 0ms to 16ms.
+  // Mean is exponential in loop for first 32 iterations, then 8ms.
+  // The futex path multiplies this by 16, since we expect explicit wakeups
+  // almost always on that path.
+  return r >> (44 - (loop >> 3));
+#else
+  static Atomic32 rand;
+  uint32 r = base::subtle::NoBarrier_Load(&rand);
+  r = 0x343fd * r + 0x269ec3;   // numbers from MSVC++
+  base::subtle::NoBarrier_Store(&rand, r);
+
+  r <<= 1;   // 31-bit random number now in top 31-bits.
+  if (loop < 0 || loop > 32) {   // limit loop to 0..32
+    loop = 32;
+  }
+  // loop>>3 cannot exceed 4 because loop cannot exceed 32.
+  // Select top 20..24 bits of lower 31 bits,
+  // giving approximately 0ms to 16ms.
+  // Mean is exponential in loop for first 32 iterations, then 8ms.
+  // The futex path multiplies this by 16, since we expect explicit wakeups
+  // almost always on that path.
+  return r >> (12 - (loop >> 3));
+#endif
+}
+
+} // namespace internal
+} // namespace base
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_internal.h b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_internal.h
new file mode 100644
index 000000000..aa47e67d4
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_internal.h
@@ -0,0 +1,51 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2010, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * This file is an internal part spinlock.cc and once.cc
+ * It may not be used directly by code outside of //base.
+ */
+
+#ifndef BASE_SPINLOCK_INTERNAL_H_
+#define BASE_SPINLOCK_INTERNAL_H_
+
+#include 
+#include "base/basictypes.h"
+#include "base/atomicops.h"
+
+namespace base {
+namespace internal {
+
+void SpinLockWake(volatile Atomic32 *w, bool all);
+void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop);
+
+} // namespace internal
+} // namespace base
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_linux-inl.h b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_linux-inl.h
new file mode 100644
index 000000000..ad48aaebd
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_linux-inl.h
@@ -0,0 +1,103 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * This file is a Linux-specific part of spinlock_internal.cc
+ */
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#define FUTEX_WAIT 0
+#define FUTEX_WAKE 1
+#define FUTEX_PRIVATE_FLAG 128
+
+// Note: Instead of making direct system calls that are inlined, we rely
+//       on the syscall() function in glibc to do the right thing.
+
+static bool have_futex;
+static int futex_private_flag = FUTEX_PRIVATE_FLAG;
+
+namespace {
+static struct InitModule {
+  InitModule() {
+    int x = 0;
+    // futexes are ints, so we can use them only when
+    // that's the same size as the lockword_ in SpinLock.
+    have_futex = (sizeof(Atomic32) == sizeof(int) &&
+                  syscall(__NR_futex, &x, FUTEX_WAKE, 1, NULL, NULL, 0) >= 0);
+    if (have_futex && syscall(__NR_futex, &x, FUTEX_WAKE | futex_private_flag,
+                              1, NULL, NULL, 0) < 0) {
+      futex_private_flag = 0;
+    }
+  }
+} init_module;
+
+}  // anonymous namespace
+
+
+namespace base {
+namespace internal {
+
+void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop) {
+  if (loop != 0) {
+    int save_errno = errno;
+    struct timespec tm;
+    tm.tv_sec = 0;
+    if (have_futex) {
+      tm.tv_nsec = base::internal::SuggestedDelayNS(loop);
+    } else {
+      tm.tv_nsec = 2000001;   // above 2ms so linux 2.4 doesn't spin
+    }
+    if (have_futex) {
+      tm.tv_nsec *= 16;  // increase the delay; we expect explicit wakeups
+      syscall(__NR_futex, reinterpret_cast(const_cast(w)),
+              FUTEX_WAIT | futex_private_flag, value,
+              reinterpret_cast(&tm), NULL, 0);
+    } else {
+      nanosleep(&tm, NULL);
+    }
+    errno = save_errno;
+  }
+}
+
+void SpinLockWake(volatile Atomic32 *w, bool all) {
+  if (have_futex) {
+    syscall(__NR_futex, reinterpret_cast(const_cast(w)),
+            FUTEX_WAKE | futex_private_flag, all ? INT_MAX : 1, NULL, NULL, 0);
+  }
+}
+
+} // namespace internal
+} // namespace base
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_posix-inl.h b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_posix-inl.h
new file mode 100644
index 000000000..f4d217b5f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_posix-inl.h
@@ -0,0 +1,63 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * This file is a Posix-specific part of spinlock_internal.cc
+ */
+
+#include 
+#include 
+#ifdef HAVE_SCHED_H
+#include       /* For sched_yield() */
+#endif
+#include        /* For nanosleep() */
+
+namespace base {
+namespace internal {
+
+void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop) {
+  int save_errno = errno;
+  if (loop == 0) {
+  } else if (loop == 1) {
+    sched_yield();
+  } else {
+    struct timespec tm;
+    tm.tv_sec = 0;
+    tm.tv_nsec = base::internal::SuggestedDelayNS(loop);
+    nanosleep(&tm, NULL);
+  }
+  errno = save_errno;
+}
+
+void SpinLockWake(volatile Atomic32 *w, bool all) {
+}
+
+} // namespace internal
+} // namespace base
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_win32-inl.h b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_win32-inl.h
new file mode 100644
index 000000000..05caa54a3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/spinlock_win32-inl.h
@@ -0,0 +1,54 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * This file is a Win32-specific part of spinlock_internal.cc
+ */
+
+
+#include 
+
+namespace base {
+namespace internal {
+
+void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop) {
+  if (loop == 0) {
+  } else if (loop == 1) {
+    Sleep(0);
+  } else {
+    Sleep(base::internal::SuggestedDelayNS(loop) / 1000000);
+  }
+}
+
+void SpinLockWake(volatile Atomic32 *w, bool all) {
+}
+
+} // namespace internal
+} // namespace base
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/stl_allocator.h b/trunk/3rdparty/gperftools-2-fit/src/base/stl_allocator.h
new file mode 100644
index 000000000..94debe82c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/stl_allocator.h
@@ -0,0 +1,98 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Maxim Lifantsev
+ */
+
+
+#ifndef BASE_STL_ALLOCATOR_H_
+#define BASE_STL_ALLOCATOR_H_
+
+#include 
+
+#include    // for ptrdiff_t
+#include 
+
+#include "base/logging.h"
+
+// Generic allocator class for STL objects
+// that uses a given type-less allocator Alloc, which must provide:
+//   static void* Alloc::Allocate(size_t size);
+//   static void Alloc::Free(void* ptr, size_t size);
+//
+// STL_Allocator provides the same thread-safety
+// guarantees as MyAlloc.
+//
+// Usage example:
+//   set, STL_Allocator > my_set;
+// CAVEAT: Parts of the code below are probably specific
+//         to the STL version(s) we are using.
+//         The code is simply lifted from what std::allocator<> provides.
+template 
+class STL_Allocator {
+ public:
+  typedef size_t     size_type;
+  typedef ptrdiff_t  difference_type;
+  typedef T*         pointer;
+  typedef const T*   const_pointer;
+  typedef T&         reference;
+  typedef const T&   const_reference;
+  typedef T          value_type;
+
+  template  struct rebind {
+    typedef STL_Allocator other;
+  };
+
+  STL_Allocator() { }
+  STL_Allocator(const STL_Allocator&) { }
+  template  STL_Allocator(const STL_Allocator&) { }
+  ~STL_Allocator() { }
+
+  pointer address(reference x) const { return &x; }
+  const_pointer address(const_reference x) const { return &x; }
+
+  pointer allocate(size_type n, const void* = 0) {
+    RAW_DCHECK((n * sizeof(T)) / sizeof(T) == n, "n is too big to allocate");
+    return static_cast(Alloc::Allocate(n * sizeof(T)));
+  }
+  void deallocate(pointer p, size_type n) { Alloc::Free(p, n * sizeof(T)); }
+
+  size_type max_size() const { return size_t(-1) / sizeof(T); }
+
+  void construct(pointer p, const T& val) { ::new(p) T(val); }
+  void construct(pointer p) { ::new(p) T(); }
+  void destroy(pointer p) { p->~T(); }
+
+  // There's no state, so these allocators are always equal
+  bool operator==(const STL_Allocator&) const { return true; }
+};
+
+#endif  // BASE_STL_ALLOCATOR_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/sysinfo.cc b/trunk/3rdparty/gperftools-2-fit/src/base/sysinfo.cc
new file mode 100644
index 000000000..669efaf62
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/sysinfo.cc
@@ -0,0 +1,878 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include 
+#if (defined(_WIN32) || defined(__MINGW32__)) && !defined(__CYGWIN__) && !defined(__CYGWIN32)
+# define PLATFORM_WINDOWS 1
+#endif
+
+#include     // for isspace()
+#include    // for getenv()
+#include     // for snprintf(), sscanf()
+#include    // for memmove(), memchr(), etc.
+#include     // for open()
+#include     // for errno
+#ifdef HAVE_UNISTD_H
+#include    // for read()
+#endif
+#if defined __MACH__          // Mac OS X, almost certainly
+#include       // for iterating over dll's in ProcMapsIter
+#include     // for iterating over dll's in ProcMapsIter
+#include 
+#include        // how we figure out numcpu's on OS X
+#elif defined __FreeBSD__
+#include 
+#elif defined __sun__         // Solaris
+#include            // for, e.g., prmap_t
+#elif defined(PLATFORM_WINDOWS)
+#include           // for getpid() (actually, _getpid())
+#include           // for SHGetValueA()
+#include          // for Module32First()
+#endif
+#include "base/sysinfo.h"
+#include "base/commandlineflags.h"
+#include "base/dynamic_annotations.h"   // for RunningOnValgrind
+#include "base/logging.h"
+
+#ifdef PLATFORM_WINDOWS
+#ifdef MODULEENTRY32
+// In a change from the usual W-A pattern, there is no A variant of
+// MODULEENTRY32.  Tlhelp32.h #defines the W variant, but not the A.
+// In unicode mode, tlhelp32.h #defines MODULEENTRY32 to be
+// MODULEENTRY32W.  These #undefs are the only way I see to get back
+// access to the original, ascii struct (and related functions).
+#undef MODULEENTRY32
+#undef Module32First
+#undef Module32Next
+#undef PMODULEENTRY32
+#undef LPMODULEENTRY32
+#endif  /* MODULEENTRY32 */
+// MinGW doesn't seem to define this, perhaps some windowsen don't either.
+#ifndef TH32CS_SNAPMODULE32
+#define TH32CS_SNAPMODULE32  0
+#endif  /* TH32CS_SNAPMODULE32 */
+#endif  /* PLATFORM_WINDOWS */
+
+// Re-run fn until it doesn't cause EINTR.
+#define NO_INTR(fn)  do {} while ((fn) < 0 && errno == EINTR)
+
+// open/read/close can set errno, which may be illegal at this
+// time, so prefer making the syscalls directly if we can.
+#ifdef HAVE_SYS_SYSCALL_H
+# include 
+#endif
+#ifdef SYS_open   // solaris 11, at least sometimes, only defines SYS_openat
+# define safeopen(filename, mode)  syscall(SYS_open, filename, mode)
+#else
+# define safeopen(filename, mode)  open(filename, mode)
+#endif
+#ifdef SYS_read
+# define saferead(fd, buffer, size)  syscall(SYS_read, fd, buffer, size)
+#else
+# define saferead(fd, buffer, size)  read(fd, buffer, size)
+#endif
+#ifdef SYS_close
+# define safeclose(fd)  syscall(SYS_close, fd)
+#else
+# define safeclose(fd)  close(fd)
+#endif
+
+// ----------------------------------------------------------------------
+// GetenvBeforeMain()
+// GetUniquePathFromEnv()
+//    Some non-trivial getenv-related functions.
+// ----------------------------------------------------------------------
+
+// we reimplement memcmp and friends to avoid depending on any glibc
+// calls too early in the process lifetime. This allows us to use
+// GetenvBeforeMain from inside ifunc handler
+static int slow_memcmp(const void *_a, const void *_b, size_t n) {
+  const uint8_t *a = reinterpret_cast(_a);
+  const uint8_t *b = reinterpret_cast(_b);
+  while (n-- != 0) {
+    uint8_t ac = *a++;
+    uint8_t bc = *b++;
+    if (ac != bc) {
+      if (ac < bc) {
+        return -1;
+      }
+      return 1;
+    }
+  }
+  return 0;
+}
+
+static const char *slow_memchr(const char *s, int c, size_t n) {
+  uint8_t ch = static_cast(c);
+  while (n--) {
+    if (*s++ == ch) {
+      return s - 1;
+    }
+  }
+  return 0;
+}
+
+static size_t slow_strlen(const char *s) {
+  const char *s2 = slow_memchr(s, '\0', static_cast(-1));
+  return s2 - s;
+}
+
+// It's not safe to call getenv() in the malloc hooks, because they
+// might be called extremely early, before libc is done setting up
+// correctly.  In particular, the thread library may not be done
+// setting up errno.  So instead, we use the built-in __environ array
+// if it exists, and otherwise read /proc/self/environ directly, using
+// system calls to read the file, and thus avoid setting errno.
+// /proc/self/environ has a limit of how much data it exports (around
+// 8K), so it's not an ideal solution.
+const char* GetenvBeforeMain(const char* name) {
+  const int namelen = slow_strlen(name);
+#if defined(HAVE___ENVIRON)   // if we have it, it's declared in unistd.h
+  if (__environ) {            // can exist but be NULL, if statically linked
+    for (char** p = __environ; *p; p++) {
+      if (!slow_memcmp(*p, name, namelen) && (*p)[namelen] == '=')
+        return *p + namelen+1;
+    }
+    return NULL;
+  }
+#endif
+#if defined(PLATFORM_WINDOWS)
+  // TODO(mbelshe) - repeated calls to this function will overwrite the
+  // contents of the static buffer.
+  static char envvar_buf[1024];  // enough to hold any envvar we care about
+  if (!GetEnvironmentVariableA(name, envvar_buf, sizeof(envvar_buf)-1))
+    return NULL;
+  return envvar_buf;
+#endif
+  // static is ok because this function should only be called before
+  // main(), when we're single-threaded.
+  static char envbuf[16<<10];
+  if (*envbuf == '\0') {    // haven't read the environ yet
+    int fd = safeopen("/proc/self/environ", O_RDONLY);
+    // The -2 below guarantees the last two bytes of the buffer will be \0\0
+    if (fd == -1 ||           // unable to open the file, fall back onto libc
+        saferead(fd, envbuf, sizeof(envbuf) - 2) < 0) { // error reading file
+      RAW_VLOG(1, "Unable to open /proc/self/environ, falling back "
+               "on getenv(\"%s\"), which may not work", name);
+      if (fd != -1) safeclose(fd);
+      return getenv(name);
+    }
+    safeclose(fd);
+  }
+  const char* p = envbuf;
+  while (*p != '\0') {    // will happen at the \0\0 that terminates the buffer
+    // proc file has the format NAME=value\0NAME=value\0NAME=value\0...
+    const char* endp = (char*)slow_memchr(p, '\0',
+                                          sizeof(envbuf) - (p - envbuf));
+    if (endp == NULL)            // this entry isn't NUL terminated
+      return NULL;
+    else if (!slow_memcmp(p, name, namelen) && p[namelen] == '=')    // it's a match
+      return p + namelen+1;      // point after =
+    p = endp + 1;
+  }
+  return NULL;                   // env var never found
+}
+
+extern "C" {
+  const char* TCMallocGetenvSafe(const char* name) {
+    return GetenvBeforeMain(name);
+  }
+}
+
+// This takes as an argument an environment-variable name (like
+// CPUPROFILE) whose value is supposed to be a file-path, and sets
+// path to that path, and returns true.  If the env var doesn't exist,
+// or is the empty string, leave path unchanged and returns false.
+// The reason this is non-trivial is that this function handles munged
+// pathnames.  Here's why:
+//
+// If we're a child process of the 'main' process, we can't just use
+// getenv("CPUPROFILE") -- the parent process will be using that path.
+// Instead we append our pid to the pathname.  How do we tell if we're a
+// child process?  Ideally we'd set an environment variable that all
+// our children would inherit.  But -- and this is seemingly a bug in
+// gcc -- if you do a setenv() in a shared libarary in a global
+// constructor, the environment setting is lost by the time main() is
+// called.  The only safe thing we can do in such a situation is to
+// modify the existing envvar.  So we do a hack: in the parent, we set
+// the high bit of the 1st char of CPUPROFILE.  In the child, we
+// notice the high bit is set and append the pid().  This works
+// assuming cpuprofile filenames don't normally have the high bit set
+// in their first character!  If that assumption is violated, we'll
+// still get a profile, but one with an unexpected name.
+// TODO(csilvers): set an envvar instead when we can do it reliably.
+bool GetUniquePathFromEnv(const char* env_name, char* path) {
+  char* envval = getenv(env_name);
+  if (envval == NULL || *envval == '\0')
+    return false;
+  if (envval[0] & 128) {                  // high bit is set
+    snprintf(path, PATH_MAX, "%c%s_%u",   // add pid and clear high bit
+             envval[0] & 127, envval+1, (unsigned int)(getpid()));
+  } else {
+    snprintf(path, PATH_MAX, "%s", envval);
+    envval[0] |= 128;                     // set high bit for kids to see
+  }
+  return true;
+}
+
+int GetSystemCPUsCount()
+{
+#if defined(PLATFORM_WINDOWS)
+  // Get the number of processors.
+  SYSTEM_INFO info;
+  GetSystemInfo(&info);
+  return  info.dwNumberOfProcessors;
+#else
+  long rv = sysconf(_SC_NPROCESSORS_ONLN);
+  if (rv < 0) {
+    return 1;
+  }
+  return static_cast(rv);
+#endif
+}
+
+// ----------------------------------------------------------------------
+
+#if defined __linux__ || defined __FreeBSD__ || defined __sun__ || defined __CYGWIN__ || defined __CYGWIN32__
+static void ConstructFilename(const char* spec, pid_t pid,
+                              char* buf, int buf_size) {
+  CHECK_LT(snprintf(buf, buf_size,
+                    spec,
+                    static_cast(pid ? pid : getpid())), buf_size);
+}
+#endif
+
+// A templatized helper function instantiated for Mach (OS X) only.
+// It can handle finding info for both 32 bits and 64 bits.
+// Returns true if it successfully handled the hdr, false else.
+#ifdef __MACH__          // Mac OS X, almost certainly
+template
+static bool NextExtMachHelper(const mach_header* hdr,
+                              int current_image, int current_load_cmd,
+                              uint64 *start, uint64 *end, char **flags,
+                              uint64 *offset, int64 *inode, char **filename,
+                              uint64 *file_mapping, uint64 *file_pages,
+                              uint64 *anon_mapping, uint64 *anon_pages,
+                              dev_t *dev) {
+  static char kDefaultPerms[5] = "r-xp";
+  if (hdr->magic != kMagic)
+    return false;
+  const char* lc = (const char *)hdr + sizeof(MachHeader);
+  // TODO(csilvers): make this not-quadradic (increment and hold state)
+  for (int j = 0; j < current_load_cmd; j++)  // advance to *our* load_cmd
+    lc += ((const load_command *)lc)->cmdsize;
+  if (((const load_command *)lc)->cmd == kLCSegment) {
+    const intptr_t dlloff = _dyld_get_image_vmaddr_slide(current_image);
+    const SegmentCommand* sc = (const SegmentCommand *)lc;
+    if (start) *start = sc->vmaddr + dlloff;
+    if (end) *end = sc->vmaddr + sc->vmsize + dlloff;
+    if (flags) *flags = kDefaultPerms;  // can we do better?
+    if (offset) *offset = sc->fileoff;
+    if (inode) *inode = 0;
+    if (filename)
+      *filename = const_cast(_dyld_get_image_name(current_image));
+    if (file_mapping) *file_mapping = 0;
+    if (file_pages) *file_pages = 0;   // could we use sc->filesize?
+    if (anon_mapping) *anon_mapping = 0;
+    if (anon_pages) *anon_pages = 0;
+    if (dev) *dev = 0;
+    return true;
+  }
+
+  return false;
+}
+#endif
+
+// Finds |c| in |text|, and assign '\0' at the found position.
+// The original character at the modified position should be |c|.
+// A pointer to the modified position is stored in |endptr|.
+// |endptr| should not be NULL.
+static bool ExtractUntilChar(char *text, int c, char **endptr) {
+  CHECK_NE(text, NULL);
+  CHECK_NE(endptr, NULL);
+  char *found;
+  found = strchr(text, c);
+  if (found == NULL) {
+    *endptr = NULL;
+    return false;
+  }
+
+  *endptr = found;
+  *found = '\0';
+  return true;
+}
+
+// Increments |*text_pointer| while it points a whitespace character.
+// It is to follow sscanf's whilespace handling.
+static void SkipWhileWhitespace(char **text_pointer, int c) {
+  if (isspace(c)) {
+    while (isspace(**text_pointer) && isspace(*((*text_pointer) + 1))) {
+      ++(*text_pointer);
+    }
+  }
+}
+
+template
+static T StringToInteger(char *text, char **endptr, int base) {
+  assert(false);
+  return T();
+}
+
+template<>
+int StringToInteger(char *text, char **endptr, int base) {
+  return strtol(text, endptr, base);
+}
+
+template<>
+int64 StringToInteger(char *text, char **endptr, int base) {
+  return strtoll(text, endptr, base);
+}
+
+template<>
+uint64 StringToInteger(char *text, char **endptr, int base) {
+  return strtoull(text, endptr, base);
+}
+
+template
+static T StringToIntegerUntilChar(
+    char *text, int base, int c, char **endptr_result) {
+  CHECK_NE(endptr_result, NULL);
+  *endptr_result = NULL;
+
+  char *endptr_extract;
+  if (!ExtractUntilChar(text, c, &endptr_extract))
+    return 0;
+
+  T result;
+  char *endptr_strto;
+  result = StringToInteger(text, &endptr_strto, base);
+  *endptr_extract = c;
+
+  if (endptr_extract != endptr_strto)
+    return 0;
+
+  *endptr_result = endptr_extract;
+  SkipWhileWhitespace(endptr_result, c);
+
+  return result;
+}
+
+static char *CopyStringUntilChar(
+    char *text, unsigned out_len, int c, char *out) {
+  char *endptr;
+  if (!ExtractUntilChar(text, c, &endptr))
+    return NULL;
+
+  strncpy(out, text, out_len);
+  out[out_len-1] = '\0';
+  *endptr = c;
+
+  SkipWhileWhitespace(&endptr, c);
+  return endptr;
+}
+
+template
+static bool StringToIntegerUntilCharWithCheck(
+    T *outptr, char *text, int base, int c, char **endptr) {
+  *outptr = StringToIntegerUntilChar(*endptr, base, c, endptr);
+  if (*endptr == NULL || **endptr == '\0') return false;
+  ++(*endptr);
+  return true;
+}
+
+static bool ParseProcMapsLine(char *text, uint64 *start, uint64 *end,
+                              char *flags, uint64 *offset,
+                              int *major, int *minor, int64 *inode,
+                              unsigned *filename_offset) {
+#if defined(__linux__)
+  /*
+   * It's similar to:
+   * sscanf(text, "%"SCNx64"-%"SCNx64" %4s %"SCNx64" %x:%x %"SCNd64" %n",
+   *        start, end, flags, offset, major, minor, inode, filename_offset)
+   */
+  char *endptr = text;
+  if (endptr == NULL || *endptr == '\0')  return false;
+
+  if (!StringToIntegerUntilCharWithCheck(start, endptr, 16, '-', &endptr))
+    return false;
+
+  if (!StringToIntegerUntilCharWithCheck(end, endptr, 16, ' ', &endptr))
+    return false;
+
+  endptr = CopyStringUntilChar(endptr, 5, ' ', flags);
+  if (endptr == NULL || *endptr == '\0')  return false;
+  ++endptr;
+
+  if (!StringToIntegerUntilCharWithCheck(offset, endptr, 16, ' ', &endptr))
+    return false;
+
+  if (!StringToIntegerUntilCharWithCheck(major, endptr, 16, ':', &endptr))
+    return false;
+
+  if (!StringToIntegerUntilCharWithCheck(minor, endptr, 16, ' ', &endptr))
+    return false;
+
+  if (!StringToIntegerUntilCharWithCheck(inode, endptr, 10, ' ', &endptr))
+    return false;
+
+  *filename_offset = (endptr - text);
+  return true;
+#else
+  return false;
+#endif
+}
+
+ProcMapsIterator::ProcMapsIterator(pid_t pid) {
+  Init(pid, NULL, false);
+}
+
+ProcMapsIterator::ProcMapsIterator(pid_t pid, Buffer *buffer) {
+  Init(pid, buffer, false);
+}
+
+ProcMapsIterator::ProcMapsIterator(pid_t pid, Buffer *buffer,
+                                   bool use_maps_backing) {
+  Init(pid, buffer, use_maps_backing);
+}
+
+void ProcMapsIterator::Init(pid_t pid, Buffer *buffer,
+                            bool use_maps_backing) {
+  pid_ = pid;
+  using_maps_backing_ = use_maps_backing;
+  dynamic_buffer_ = NULL;
+  if (!buffer) {
+    // If the user didn't pass in any buffer storage, allocate it
+    // now. This is the normal case; the signal handler passes in a
+    // static buffer.
+    buffer = dynamic_buffer_ = new Buffer;
+  } else {
+    dynamic_buffer_ = NULL;
+  }
+
+  ibuf_ = buffer->buf_;
+
+  stext_ = etext_ = nextline_ = ibuf_;
+  ebuf_ = ibuf_ + Buffer::kBufSize - 1;
+  nextline_ = ibuf_;
+
+#if defined(__linux__) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+  if (use_maps_backing) {  // don't bother with clever "self" stuff in this case
+    ConstructFilename("/proc/%d/maps_backing", pid, ibuf_, Buffer::kBufSize);
+  } else if (pid == 0) {
+    // We have to kludge a bit to deal with the args ConstructFilename
+    // expects.  The 1 is never used -- it's only impt. that it's not 0.
+    ConstructFilename("/proc/self/maps", 1, ibuf_, Buffer::kBufSize);
+  } else {
+    ConstructFilename("/proc/%d/maps", pid, ibuf_, Buffer::kBufSize);
+  }
+  // No error logging since this can be called from the crash dump
+  // handler at awkward moments. Users should call Valid() before
+  // using.
+  NO_INTR(fd_ = open(ibuf_, O_RDONLY));
+#elif defined(__FreeBSD__)
+  // We don't support maps_backing on freebsd
+  if (pid == 0) {
+    ConstructFilename("/proc/curproc/map", 1, ibuf_, Buffer::kBufSize);
+  } else {
+    ConstructFilename("/proc/%d/map", pid, ibuf_, Buffer::kBufSize);
+  }
+  NO_INTR(fd_ = open(ibuf_, O_RDONLY));
+#elif defined(__sun__)
+  if (pid == 0) {
+    ConstructFilename("/proc/self/map", 1, ibuf_, Buffer::kBufSize);
+  } else {
+    ConstructFilename("/proc/%d/map", pid, ibuf_, Buffer::kBufSize);
+  }
+  NO_INTR(fd_ = open(ibuf_, O_RDONLY));
+#elif defined(__MACH__)
+  current_image_ = _dyld_image_count();   // count down from the top
+  current_load_cmd_ = -1;
+#elif defined(PLATFORM_WINDOWS)
+  snapshot_ = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE |
+                                       TH32CS_SNAPMODULE32,
+                                       GetCurrentProcessId());
+  memset(&module_, 0, sizeof(module_));
+#else
+  fd_ = -1;   // so Valid() is always false
+#endif
+
+}
+
+ProcMapsIterator::~ProcMapsIterator() {
+#if defined(PLATFORM_WINDOWS)
+  if (snapshot_ != INVALID_HANDLE_VALUE) CloseHandle(snapshot_);
+#elif defined(__MACH__)
+  // no cleanup necessary!
+#else
+  if (fd_ >= 0) NO_INTR(close(fd_));
+#endif
+  delete dynamic_buffer_;
+}
+
+bool ProcMapsIterator::Valid() const {
+#if defined(PLATFORM_WINDOWS)
+  return snapshot_ != INVALID_HANDLE_VALUE;
+#elif defined(__MACH__)
+  return 1;
+#else
+  return fd_ != -1;
+#endif
+}
+
+bool ProcMapsIterator::Next(uint64 *start, uint64 *end, char **flags,
+                            uint64 *offset, int64 *inode, char **filename) {
+  return NextExt(start, end, flags, offset, inode, filename, NULL, NULL,
+                 NULL, NULL, NULL);
+}
+
+// This has too many arguments.  It should really be building
+// a map object and returning it.  The problem is that this is called
+// when the memory allocator state is undefined, hence the arguments.
+bool ProcMapsIterator::NextExt(uint64 *start, uint64 *end, char **flags,
+                               uint64 *offset, int64 *inode, char **filename,
+                               uint64 *file_mapping, uint64 *file_pages,
+                               uint64 *anon_mapping, uint64 *anon_pages,
+                               dev_t *dev) {
+
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+  do {
+    // Advance to the start of the next line
+    stext_ = nextline_;
+
+    // See if we have a complete line in the buffer already
+    nextline_ = static_cast(memchr (stext_, '\n', etext_ - stext_));
+    if (!nextline_) {
+      // Shift/fill the buffer so we do have a line
+      int count = etext_ - stext_;
+
+      // Move the current text to the start of the buffer
+      memmove(ibuf_, stext_, count);
+      stext_ = ibuf_;
+      etext_ = ibuf_ + count;
+
+      int nread = 0;            // fill up buffer with text
+      while (etext_ < ebuf_) {
+        NO_INTR(nread = read(fd_, etext_, ebuf_ - etext_));
+        if (nread > 0)
+          etext_ += nread;
+        else
+          break;
+      }
+
+      // Zero out remaining characters in buffer at EOF to avoid returning
+      // garbage from subsequent calls.
+      if (etext_ != ebuf_ && nread == 0) {
+        memset(etext_, 0, ebuf_ - etext_);
+      }
+      *etext_ = '\n';   // sentinel; safe because ibuf extends 1 char beyond ebuf
+      nextline_ = static_cast(memchr (stext_, '\n', etext_ + 1 - stext_));
+    }
+    *nextline_ = 0;                // turn newline into nul
+    nextline_ += ((nextline_ < etext_)? 1 : 0);  // skip nul if not end of text
+    // stext_ now points at a nul-terminated line
+    uint64 tmpstart, tmpend, tmpoffset;
+    int64 tmpinode;
+    int major, minor;
+    unsigned filename_offset = 0;
+#if defined(__linux__)
+    // for now, assume all linuxes have the same format
+    if (!ParseProcMapsLine(
+        stext_,
+        start ? start : &tmpstart,
+        end ? end : &tmpend,
+        flags_,
+        offset ? offset : &tmpoffset,
+        &major, &minor,
+        inode ? inode : &tmpinode, &filename_offset)) continue;
+#elif defined(__CYGWIN__) || defined(__CYGWIN32__)
+    // cygwin is like linux, except the third field is the "entry point"
+    // rather than the offset (see format_process_maps at
+    // http://cygwin.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/fhandler_process.cc?rev=1.89&content-type=text/x-cvsweb-markup&cvsroot=src
+    // Offset is always be 0 on cygwin: cygwin implements an mmap
+    // by loading the whole file and then calling NtMapViewOfSection.
+    // Cygwin also seems to set its flags kinda randomly; use windows default.
+    char tmpflags[5];
+    if (offset)
+      *offset = 0;
+    strcpy(flags_, "r-xp");
+    if (sscanf(stext_, "%llx-%llx %4s %llx %x:%x %lld %n",
+               start ? start : &tmpstart,
+               end ? end : &tmpend,
+               tmpflags,
+               &tmpoffset,
+               &major, &minor,
+               inode ? inode : &tmpinode, &filename_offset) != 7) continue;
+#elif defined(__FreeBSD__)
+    // For the format, see http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/fs/procfs/procfs_map.c?rev=1.31&content-type=text/x-cvsweb-markup
+    tmpstart = tmpend = tmpoffset = 0;
+    tmpinode = 0;
+    major = minor = 0;   // can't get this info in freebsd
+    if (inode)
+      *inode = 0;        // nor this
+    if (offset)
+      *offset = 0;       // seems like this should be in there, but maybe not
+    // start end resident privateresident obj(?) prot refcnt shadowcnt
+    // flags copy_on_write needs_copy type filename:
+    // 0x8048000 0x804a000 2 0 0xc104ce70 r-x 1 0 0x0 COW NC vnode /bin/cat
+    if (sscanf(stext_, "0x%" SCNx64 " 0x%" SCNx64 " %*d %*d %*p %3s %*d %*d 0x%*x %*s %*s %*s %n",
+               start ? start : &tmpstart,
+               end ? end : &tmpend,
+               flags_,
+               &filename_offset) != 3) continue;
+#endif
+
+    // Depending on the Linux kernel being used, there may or may not be a space
+    // after the inode if there is no filename.  sscanf will in such situations
+    // nondeterministically either fill in filename_offset or not (the results
+    // differ on multiple calls in the same run even with identical arguments).
+    // We don't want to wander off somewhere beyond the end of the string.
+    size_t stext_length = strlen(stext_);
+    if (filename_offset == 0 || filename_offset > stext_length)
+      filename_offset = stext_length;
+
+    // We found an entry
+    if (flags) *flags = flags_;
+    if (filename) *filename = stext_ + filename_offset;
+    if (dev) *dev = minor | (major << 8);
+
+    if (using_maps_backing_) {
+      // Extract and parse physical page backing info.
+      char *backing_ptr = stext_ + filename_offset +
+          strlen(stext_+filename_offset);
+
+      // find the second '('
+      int paren_count = 0;
+      while (--backing_ptr > stext_) {
+        if (*backing_ptr == '(') {
+          ++paren_count;
+          if (paren_count >= 2) {
+            uint64 tmp_file_mapping;
+            uint64 tmp_file_pages;
+            uint64 tmp_anon_mapping;
+            uint64 tmp_anon_pages;
+
+            sscanf(backing_ptr+1, "F %" SCNx64 " %" SCNd64 ") (A %" SCNx64 " %" SCNd64 ")",
+                   file_mapping ? file_mapping : &tmp_file_mapping,
+                   file_pages ? file_pages : &tmp_file_pages,
+                   anon_mapping ? anon_mapping : &tmp_anon_mapping,
+                   anon_pages ? anon_pages : &tmp_anon_pages);
+            // null terminate the file name (there is a space
+            // before the first (.
+            backing_ptr[-1] = 0;
+            break;
+          }
+        }
+      }
+    }
+
+    return true;
+  } while (etext_ > ibuf_);
+#elif defined(__sun__)
+  // This is based on MA_READ == 4, MA_WRITE == 2, MA_EXEC == 1
+  static char kPerms[8][4] = { "---", "--x", "-w-", "-wx",
+                               "r--", "r-x", "rw-", "rwx" };
+  COMPILE_ASSERT(MA_READ == 4, solaris_ma_read_must_equal_4);
+  COMPILE_ASSERT(MA_WRITE == 2, solaris_ma_write_must_equal_2);
+  COMPILE_ASSERT(MA_EXEC == 1, solaris_ma_exec_must_equal_1);
+  Buffer object_path;
+  int nread = 0;            // fill up buffer with text
+  NO_INTR(nread = read(fd_, ibuf_, sizeof(prmap_t)));
+  if (nread == sizeof(prmap_t)) {
+    long inode_from_mapname = 0;
+    prmap_t* mapinfo = reinterpret_cast(ibuf_);
+    // Best-effort attempt to get the inode from the filename.  I think the
+    // two middle ints are major and minor device numbers, but I'm not sure.
+    sscanf(mapinfo->pr_mapname, "ufs.%*d.%*d.%ld", &inode_from_mapname);
+
+    if (pid_ == 0) {
+      CHECK_LT(snprintf(object_path.buf_, Buffer::kBufSize,
+                        "/proc/self/path/%s", mapinfo->pr_mapname),
+               Buffer::kBufSize);
+    } else {
+      CHECK_LT(snprintf(object_path.buf_, Buffer::kBufSize,
+                        "/proc/%d/path/%s",
+                        static_cast(pid_), mapinfo->pr_mapname),
+               Buffer::kBufSize);
+    }
+    ssize_t len = readlink(object_path.buf_, current_filename_, PATH_MAX);
+    CHECK_LT(len, PATH_MAX);
+    if (len < 0)
+      len = 0;
+    current_filename_[len] = '\0';
+
+    if (start) *start = mapinfo->pr_vaddr;
+    if (end) *end = mapinfo->pr_vaddr + mapinfo->pr_size;
+    if (flags) *flags = kPerms[mapinfo->pr_mflags & 7];
+    if (offset) *offset = mapinfo->pr_offset;
+    if (inode) *inode = inode_from_mapname;
+    if (filename) *filename = current_filename_;
+    if (file_mapping) *file_mapping = 0;
+    if (file_pages) *file_pages = 0;
+    if (anon_mapping) *anon_mapping = 0;
+    if (anon_pages) *anon_pages = 0;
+    if (dev) *dev = 0;
+    return true;
+  }
+#elif defined(__MACH__)
+  // We return a separate entry for each segment in the DLL. (TODO(csilvers):
+  // can we do better?)  A DLL ("image") has load-commands, some of which
+  // talk about segment boundaries.
+  // cf image_for_address from http://svn.digium.com/view/asterisk/team/oej/minivoicemail/dlfcn.c?revision=53912
+  for (; current_image_ >= 0; current_image_--) {
+    const mach_header* hdr = _dyld_get_image_header(current_image_);
+    if (!hdr) continue;
+    if (current_load_cmd_ < 0)   // set up for this image
+      current_load_cmd_ = hdr->ncmds;  // again, go from the top down
+
+    // We start with the next load command (we've already looked at this one).
+    for (current_load_cmd_--; current_load_cmd_ >= 0; current_load_cmd_--) {
+#ifdef MH_MAGIC_64
+      if (NextExtMachHelper(
+                                hdr, current_image_, current_load_cmd_,
+                                start, end, flags, offset, inode, filename,
+                                file_mapping, file_pages, anon_mapping,
+                                anon_pages, dev)) {
+        return true;
+      }
+#endif
+      if (NextExtMachHelper(
+                                hdr, current_image_, current_load_cmd_,
+                                start, end, flags, offset, inode, filename,
+                                file_mapping, file_pages, anon_mapping,
+                                anon_pages, dev)) {
+        return true;
+      }
+    }
+    // If we get here, no more load_cmd's in this image talk about
+    // segments.  Go on to the next image.
+  }
+#elif defined(PLATFORM_WINDOWS)
+  static char kDefaultPerms[5] = "r-xp";
+  BOOL ok;
+  if (module_.dwSize == 0) {  // only possible before first call
+    module_.dwSize = sizeof(module_);
+    ok = Module32First(snapshot_, &module_);
+  } else {
+    ok = Module32Next(snapshot_, &module_);
+  }
+  if (ok) {
+    uint64 base_addr = reinterpret_cast(module_.modBaseAddr);
+    if (start) *start = base_addr;
+    if (end) *end = base_addr + module_.modBaseSize;
+    if (flags) *flags = kDefaultPerms;
+    if (offset) *offset = 0;
+    if (inode) *inode = 0;
+    if (filename) *filename = module_.szExePath;
+    if (file_mapping) *file_mapping = 0;
+    if (file_pages) *file_pages = 0;
+    if (anon_mapping) *anon_mapping = 0;
+    if (anon_pages) *anon_pages = 0;
+    if (dev) *dev = 0;
+    return true;
+  }
+#endif
+
+  // We didn't find anything
+  return false;
+}
+
+int ProcMapsIterator::FormatLine(char* buffer, int bufsize,
+                                 uint64 start, uint64 end, const char *flags,
+                                 uint64 offset, int64 inode,
+                                 const char *filename, dev_t dev) {
+  // We assume 'flags' looks like 'rwxp' or 'rwx'.
+  char r = (flags && flags[0] == 'r') ? 'r' : '-';
+  char w = (flags && flags[0] && flags[1] == 'w') ? 'w' : '-';
+  char x = (flags && flags[0] && flags[1] && flags[2] == 'x') ? 'x' : '-';
+  // p always seems set on linux, so we set the default to 'p', not '-'
+  char p = (flags && flags[0] && flags[1] && flags[2] && flags[3] != 'p')
+      ? '-' : 'p';
+
+  const int rc = snprintf(buffer, bufsize,
+                          "%08" PRIx64 "-%08" PRIx64 " %c%c%c%c %08" PRIx64 " %02x:%02x %-11" PRId64 " %s\n",
+                          start, end, r,w,x,p, offset,
+                          static_cast(dev/256), static_cast(dev%256),
+                          inode, filename);
+  return (rc < 0 || rc >= bufsize) ? 0 : rc;
+}
+
+namespace tcmalloc {
+
+// Helper to add the list of mapped shared libraries to a profile.
+// Fill formatted "/proc/self/maps" contents into buffer 'buf' of size 'size'
+// and return the actual size occupied in 'buf'.  We fill wrote_all to true
+// if we successfully wrote all proc lines to buf, false else.
+// We do not provision for 0-terminating 'buf'.
+int FillProcSelfMaps(char buf[], int size, bool* wrote_all) {
+  ProcMapsIterator::Buffer iterbuf;
+  ProcMapsIterator it(0, &iterbuf);   // 0 means "current pid"
+
+  uint64 start, end, offset;
+  int64 inode;
+  char *flags, *filename;
+  int bytes_written = 0;
+  *wrote_all = true;
+  while (it.Next(&start, &end, &flags, &offset, &inode, &filename)) {
+    const int line_length = it.FormatLine(buf + bytes_written,
+                                          size - bytes_written,
+                                          start, end, flags, offset,
+                                          inode, filename, 0);
+    if (line_length == 0)
+      *wrote_all = false;     // failed to write this line out
+    else
+      bytes_written += line_length;
+
+  }
+  return bytes_written;
+}
+
+// Dump the same data as FillProcSelfMaps reads to fd.
+// It seems easier to repeat parts of FillProcSelfMaps here than to
+// reuse it via a call.
+void DumpProcSelfMaps(RawFD fd) {
+  ProcMapsIterator::Buffer iterbuf;
+  ProcMapsIterator it(0, &iterbuf);   // 0 means "current pid"
+
+  uint64 start, end, offset;
+  int64 inode;
+  char *flags, *filename;
+  ProcMapsIterator::Buffer linebuf;
+  while (it.Next(&start, &end, &flags, &offset, &inode, &filename)) {
+    int written = it.FormatLine(linebuf.buf_, sizeof(linebuf.buf_),
+                                start, end, flags, offset, inode, filename,
+                                0);
+    RawWrite(fd, linebuf.buf_, written);
+  }
+}
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/sysinfo.h b/trunk/3rdparty/gperftools-2-fit/src/base/sysinfo.h
new file mode 100644
index 000000000..77d956ea3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/sysinfo.h
@@ -0,0 +1,230 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// All functions here are thread-hostile due to file caching unless
+// commented otherwise.
+
+#ifndef _SYSINFO_H_
+#define _SYSINFO_H_
+
+#include 
+
+#include 
+#if (defined(_WIN32) || defined(__MINGW32__)) && (!defined(__CYGWIN__) && !defined(__CYGWIN32__))
+#include    // for DWORD
+#include   // for CreateToolhelp32Snapshot
+#endif
+#ifdef HAVE_UNISTD_H
+#include     // for pid_t
+#endif
+#include     // for size_t
+#include     // for PATH_MAX
+#include "base/basictypes.h"
+#include "base/logging.h"   // for RawFD
+
+// This getenv function is safe to call before the C runtime is initialized.
+// On Windows, it utilizes GetEnvironmentVariable() and on unix it uses
+// /proc/self/environ instead calling getenv().  It's intended to be used in
+// routines that run before main(), when the state required for getenv() may
+// not be set up yet.  In particular, errno isn't set up until relatively late
+// (after the pthreads library has a chance to make it threadsafe), and
+// getenv() doesn't work until then.
+// On some platforms, this call will utilize the same, static buffer for
+// repeated GetenvBeforeMain() calls. Callers should not expect pointers from
+// this routine to be long lived.
+// Note that on unix, /proc only has the environment at the time the
+// application was started, so this routine ignores setenv() calls/etc.  Also
+// note it only reads the first 16K of the environment.
+extern const char* GetenvBeforeMain(const char* name);
+
+// This takes as an argument an environment-variable name (like
+// CPUPROFILE) whose value is supposed to be a file-path, and sets
+// path to that path, and returns true.  Non-trivial for surprising
+// reasons, as documented in sysinfo.cc.  path must have space PATH_MAX.
+extern bool GetUniquePathFromEnv(const char* env_name, char* path);
+
+extern int GetSystemCPUsCount();
+
+//  Return true if we're running POSIX (e.g., NPTL on Linux) threads,
+//  as opposed to a non-POSIX thread library.  The thing that we care
+//  about is whether a thread's pid is the same as the thread that
+//  spawned it.  If so, this function returns true.
+//  Thread-safe.
+//  Note: We consider false negatives to be OK.
+bool HasPosixThreads();
+
+#ifndef SWIG  // SWIG doesn't like struct Buffer and variable arguments.
+
+// A ProcMapsIterator abstracts access to /proc/maps for a given
+// process. Needs to be stack-allocatable and avoid using stdio/malloc
+// so it can be used in the google stack dumper, heap-profiler, etc.
+//
+// On Windows and Mac OS X, this iterator iterates *only* over DLLs
+// mapped into this process space.  For Linux, FreeBSD, and Solaris,
+// it iterates over *all* mapped memory regions, including anonymous
+// mmaps.  For other O/Ss, it is unlikely to work at all, and Valid()
+// will always return false.  Also note: this routine only works on
+// FreeBSD if procfs is mounted: make sure this is in your /etc/fstab:
+//    proc            /proc   procfs  rw 0 0
+class ProcMapsIterator {
+ public:
+  struct Buffer {
+#ifdef __FreeBSD__
+    // FreeBSD requires us to read all of the maps file at once, so
+    // we have to make a buffer that's "always" big enough
+    static const size_t kBufSize = 102400;
+#else   // a one-line buffer is good enough
+    static const size_t kBufSize = PATH_MAX + 1024;
+#endif
+    char buf_[kBufSize];
+  };
+
+
+  // Create a new iterator for the specified pid.  pid can be 0 for "self".
+  explicit ProcMapsIterator(pid_t pid);
+
+  // Create an iterator with specified storage (for use in signal
+  // handler). "buffer" should point to a ProcMapsIterator::Buffer
+  // buffer can be NULL in which case a bufer will be allocated.
+  ProcMapsIterator(pid_t pid, Buffer *buffer);
+
+  // Iterate through maps_backing instead of maps if use_maps_backing
+  // is true.  Otherwise the same as above.  buffer can be NULL and
+  // it will allocate a buffer itself.
+  ProcMapsIterator(pid_t pid, Buffer *buffer,
+                   bool use_maps_backing);
+
+  // Returns true if the iterator successfully initialized;
+  bool Valid() const;
+
+  // Returns a pointer to the most recently parsed line. Only valid
+  // after Next() returns true, and until the iterator is destroyed or
+  // Next() is called again.  This may give strange results on non-Linux
+  // systems.  Prefer FormatLine() if that may be a concern.
+  const char *CurrentLine() const { return stext_; }
+
+  // Writes the "canonical" form of the /proc/xxx/maps info for a single
+  // line to the passed-in buffer. Returns the number of bytes written,
+  // or 0 if it was not able to write the complete line.  (To guarantee
+  // success, buffer should have size at least Buffer::kBufSize.)
+  // Takes as arguments values set via a call to Next().  The
+  // "canonical" form of the line (taken from linux's /proc/xxx/maps):
+  //    -     +
+  //    :   Note: the
+  // eg
+  //    08048000-0804c000 r-xp 00000000 03:01 3793678    /bin/cat
+  // If you don't have the dev_t (dev), feel free to pass in 0.
+  // (Next() doesn't return a dev_t, though NextExt does.)
+  //
+  // Note: if filename and flags were obtained via a call to Next(),
+  // then the output of this function is only valid if Next() returned
+  // true, and only until the iterator is destroyed or Next() is
+  // called again.  (Since filename, at least, points into CurrentLine.)
+  static int FormatLine(char* buffer, int bufsize,
+                        uint64 start, uint64 end, const char *flags,
+                        uint64 offset, int64 inode, const char *filename,
+                        dev_t dev);
+
+  // Find the next entry in /proc/maps; return true if found or false
+  // if at the end of the file.
+  //
+  // Any of the result pointers can be NULL if you're not interested
+  // in those values.
+  //
+  // If "flags" and "filename" are passed, they end up pointing to
+  // storage within the ProcMapsIterator that is valid only until the
+  // iterator is destroyed or Next() is called again. The caller may
+  // modify the contents of these strings (up as far as the first NUL,
+  // and only until the subsequent call to Next()) if desired.
+
+  // The offsets are all uint64 in order to handle the case of a
+  // 32-bit process running on a 64-bit kernel
+  //
+  // IMPORTANT NOTE: see top-of-class notes for details about what
+  // mapped regions Next() iterates over, depending on O/S.
+  // TODO(csilvers): make flags and filename const.
+  bool Next(uint64 *start, uint64 *end, char **flags,
+            uint64 *offset, int64 *inode, char **filename);
+
+  bool NextExt(uint64 *start, uint64 *end, char **flags,
+               uint64 *offset, int64 *inode, char **filename,
+               uint64 *file_mapping, uint64 *file_pages,
+               uint64 *anon_mapping, uint64 *anon_pages,
+               dev_t *dev);
+
+  ~ProcMapsIterator();
+
+ private:
+  void Init(pid_t pid, Buffer *buffer, bool use_maps_backing);
+
+  char *ibuf_;        // input buffer
+  char *stext_;       // start of text
+  char *etext_;       // end of text
+  char *nextline_;    // start of next line
+  char *ebuf_;        // end of buffer (1 char for a nul)
+#if (defined(_WIN32) || defined(__MINGW32__)) && (!defined(__CYGWIN__) && !defined(__CYGWIN32__))
+  HANDLE snapshot_;   // filehandle on dll info
+  // In a change from the usual W-A pattern, there is no A variant of
+  // MODULEENTRY32.  Tlhelp32.h #defines the W variant, but not the A.
+  // We want the original A variants, and this #undef is the only
+  // way I see to get them.  Redefining it when we're done prevents us
+  // from affecting other .cc files.
+# ifdef MODULEENTRY32  // Alias of W
+#   undef MODULEENTRY32
+  MODULEENTRY32 module_;   // info about current dll (and dll iterator)
+#   define MODULEENTRY32 MODULEENTRY32W
+# else  // It's the ascii, the one we want.
+  MODULEENTRY32 module_;   // info about current dll (and dll iterator)
+# endif
+#elif defined(__MACH__)
+  int current_image_; // dll's are called "images" in macos parlance
+  int current_load_cmd_;   // the segment of this dll we're examining
+#elif defined(__sun__)     // Solaris
+  int fd_;
+  char current_filename_[PATH_MAX];
+#else
+  int fd_;            // filehandle on /proc/*/maps
+#endif
+  pid_t pid_;
+  char flags_[10];
+  Buffer* dynamic_buffer_;  // dynamically-allocated Buffer
+  bool using_maps_backing_; // true if we are looking at maps_backing instead of maps.
+};
+
+#endif  /* #ifndef SWIG */
+
+// Helper routines
+
+namespace tcmalloc {
+int FillProcSelfMaps(char buf[], int size, bool* wrote_all);
+void DumpProcSelfMaps(RawFD fd);
+}
+
+#endif   /* #ifndef _SYSINFO_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/thread_annotations.h b/trunk/3rdparty/gperftools-2-fit/src/base/thread_annotations.h
new file mode 100644
index 000000000..b68e7562a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/thread_annotations.h
@@ -0,0 +1,133 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Le-Chun Wu
+//
+// This header file contains the macro definitions for thread safety
+// annotations that allow the developers to document the locking policies
+// of their multi-threaded code. The annotations can also help program
+// analysis tools to identify potential thread safety issues.
+//
+// The annotations are implemented using clang's "attributes" extension.
+// Using the macros defined here instead of the raw clang attributes allows
+// for portability and future compatibility.
+//
+// This functionality is not yet fully implemented in perftools,
+// but may be one day.
+
+#ifndef BASE_THREAD_ANNOTATIONS_H_
+#define BASE_THREAD_ANNOTATIONS_H_
+
+
+#if defined(__clang__)
+#define THREAD_ANNOTATION_ATTRIBUTE__(x)   __attribute__((x))
+#else
+#define THREAD_ANNOTATION_ATTRIBUTE__(x)   // no-op
+#endif
+
+
+// Document if a shared variable/field needs to be protected by a lock.
+// GUARDED_BY allows the user to specify a particular lock that should be
+// held when accessing the annotated variable, while GUARDED_VAR only
+// indicates a shared variable should be guarded (by any lock). GUARDED_VAR
+// is primarily used when the client cannot express the name of the lock.
+#define GUARDED_BY(x)          THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x))
+#define GUARDED_VAR            THREAD_ANNOTATION_ATTRIBUTE__(guarded)
+
+// Document if the memory location pointed to by a pointer should be guarded
+// by a lock when dereferencing the pointer. Similar to GUARDED_VAR,
+// PT_GUARDED_VAR is primarily used when the client cannot express the name
+// of the lock. Note that a pointer variable to a shared memory location
+// could itself be a shared variable. For example, if a shared global pointer
+// q, which is guarded by mu1, points to a shared memory location that is
+// guarded by mu2, q should be annotated as follows:
+//     int *q GUARDED_BY(mu1) PT_GUARDED_BY(mu2);
+#define PT_GUARDED_BY(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(point_to_guarded_by(x))
+#define PT_GUARDED_VAR \
+  THREAD_ANNOTATION_ATTRIBUTE__(point_to_guarded)
+
+// Document the acquisition order between locks that can be held
+// simultaneously by a thread. For any two locks that need to be annotated
+// to establish an acquisition order, only one of them needs the annotation.
+// (i.e. You don't have to annotate both locks with both ACQUIRED_AFTER
+// and ACQUIRED_BEFORE.)
+#define ACQUIRED_AFTER(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(acquired_after(x))
+#define ACQUIRED_BEFORE(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(acquired_before(x))
+
+// The following three annotations document the lock requirements for
+// functions/methods.
+
+// Document if a function expects certain locks to be held before it is called
+#define EXCLUSIVE_LOCKS_REQUIRED(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(x))
+
+#define SHARED_LOCKS_REQUIRED(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(shared_locks_required(x))
+
+// Document the locks acquired in the body of the function. These locks
+// cannot be held when calling this function (as google3's Mutex locks are
+// non-reentrant).
+#define LOCKS_EXCLUDED(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(locks_excluded(x))
+
+// Document the lock the annotated function returns without acquiring it.
+#define LOCK_RETURNED(x)       THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
+
+// Document if a class/type is a lockable type (such as the Mutex class).
+#define LOCKABLE               THREAD_ANNOTATION_ATTRIBUTE__(lockable)
+
+// Document if a class is a scoped lockable type (such as the MutexLock class).
+#define SCOPED_LOCKABLE        THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
+
+// The following annotations specify lock and unlock primitives.
+#define EXCLUSIVE_LOCK_FUNCTION(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock_function(x))
+
+#define SHARED_LOCK_FUNCTION(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(shared_lock_function(x))
+
+#define EXCLUSIVE_TRYLOCK_FUNCTION(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock_function(x))
+
+#define SHARED_TRYLOCK_FUNCTION(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock_function(x))
+
+#define UNLOCK_FUNCTION(x) \
+  THREAD_ANNOTATION_ATTRIBUTE__(unlock_function(x))
+
+// An escape hatch for thread safety analysis to ignore the annotated function.
+#define NO_THREAD_SAFETY_ANALYSIS \
+  THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis)
+
+#endif  // BASE_THREAD_ANNOTATIONS_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/thread_lister.c b/trunk/3rdparty/gperftools-2-fit/src/base/thread_lister.c
new file mode 100644
index 000000000..2d7beb309
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/thread_lister.c
@@ -0,0 +1,84 @@
+/* -*- Mode: c; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2005-2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Markus Gutschke
+ */
+
+#include "config.h"
+
+#include "base/thread_lister.h"
+
+#include          /* needed for NULL on some powerpc platforms (?!) */
+#include 
+#include         /* for getpid */
+
+#ifdef HAVE_SYS_PRCTL
+# include 
+#endif
+
+#include "base/linuxthreads.h"
+/* Include other thread listers here that define THREADS macro
+ * only when they can provide a good implementation.
+ */
+
+#ifndef THREADS
+
+/* Default trivial thread lister for single-threaded applications,
+ * or if the multi-threading code has not been ported, yet.
+ */
+
+int TCMalloc_ListAllProcessThreads(void *parameter,
+				   ListAllProcessThreadsCallBack callback, ...) {
+  int rc;
+  va_list ap;
+  pid_t pid;
+
+#ifdef HAVE_SYS_PRCTL
+  int dumpable = prctl(PR_GET_DUMPABLE, 0);
+  if (!dumpable)
+    prctl(PR_SET_DUMPABLE, 1);
+#endif
+  va_start(ap, callback);
+  pid = getpid();
+  rc = callback(parameter, 1, &pid, ap);
+  va_end(ap);
+#ifdef HAVE_SYS_PRCTL
+  if (!dumpable)
+    prctl(PR_SET_DUMPABLE, 0);
+#endif
+  return rc;
+}
+
+int TCMalloc_ResumeAllProcessThreads(int num_threads, pid_t *thread_pids) {
+  return 1;
+}
+
+#endif   /* ifndef THREADS */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/thread_lister.h b/trunk/3rdparty/gperftools-2-fit/src/base/thread_lister.h
new file mode 100644
index 000000000..6e70b89fe
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/thread_lister.h
@@ -0,0 +1,83 @@
+/* -*- Mode: c; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2005-2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Markus Gutschke
+ */
+
+#ifndef _THREAD_LISTER_H
+#define _THREAD_LISTER_H
+
+#include 
+#include 
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef int (*ListAllProcessThreadsCallBack)(void *parameter,
+                                             int num_threads,
+                                             pid_t *thread_pids,
+                                             va_list ap);
+
+/* This function gets the list of all linux threads of the current process
+ * passes them to the 'callback' along with the 'parameter' pointer; at the
+ * call back call time all the threads are paused via
+ * PTRACE_ATTACH.
+ * The callback is executed from a separate thread which shares only the
+ * address space, the filesystem, and the filehandles with the caller. Most
+ * notably, it does not share the same pid and ppid; and if it terminates,
+ * the rest of the application is still there. 'callback' is supposed to do
+ * or arrange for TCMalloc_ResumeAllProcessThreads. This happens automatically, if
+ * the thread raises a synchronous signal (e.g. SIGSEGV); asynchronous
+ * signals are blocked. If the 'callback' decides to unblock them, it must
+ * ensure that they cannot terminate the application, or that
+ * TCMalloc_ResumeAllProcessThreads will get called.
+ * It is an error for the 'callback' to make any library calls that could
+ * acquire locks. Most notably, this means that most system calls have to
+ * avoid going through libc. Also, this means that it is not legal to call
+ * exit() or abort().
+ * We return -1 on error and the return value of 'callback' on success.
+ */
+int TCMalloc_ListAllProcessThreads(void *parameter,
+                                   ListAllProcessThreadsCallBack callback, ...);
+
+/* This function resumes the list of all linux threads that
+ * TCMalloc_ListAllProcessThreads pauses before giving to its
+ * callback.  The function returns non-zero if at least one thread was
+ * suspended and has now been resumed.
+ */
+int TCMalloc_ResumeAllProcessThreads(int num_threads, pid_t *thread_pids);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* _THREAD_LISTER_H */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/vdso_support.cc b/trunk/3rdparty/gperftools-2-fit/src/base/vdso_support.cc
new file mode 100644
index 000000000..e4805e9e4
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/vdso_support.cc
@@ -0,0 +1,143 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Paul Pluzhnikov
+//
+// Allow dynamic symbol lookup in the kernel VDSO page.
+//
+// VDSOSupport -- a class representing kernel VDSO (if present).
+//
+
+#include "base/vdso_support.h"
+
+#ifdef HAVE_VDSO_SUPPORT     // defined in vdso_support.h
+
+#include 
+#include    // for ptrdiff_t
+
+#include "base/atomicops.h"  // for MemoryBarrier
+#include "base/logging.h"
+#include "base/dynamic_annotations.h"
+#include "base/basictypes.h"  // for COMPILE_ASSERT
+
+using base::subtle::MemoryBarrier;
+
+#ifndef AT_SYSINFO_EHDR
+#define AT_SYSINFO_EHDR 33
+#endif
+
+namespace base {
+
+const void *VDSOSupport::vdso_base_ = ElfMemImage::kInvalidBase;
+VDSOSupport::VDSOSupport()
+    // If vdso_base_ is still set to kInvalidBase, we got here
+    // before VDSOSupport::Init has been called. Call it now.
+    : image_(vdso_base_ == ElfMemImage::kInvalidBase ? Init() : vdso_base_) {
+}
+
+// NOTE: we can't use GoogleOnceInit() below, because we can be
+// called by tcmalloc, and none of the *once* stuff may be functional yet.
+//
+// In addition, we hope that the VDSOSupportHelper constructor
+// causes this code to run before there are any threads, and before
+// InitGoogle() has executed any chroot or setuid calls.
+//
+// Finally, even if there is a race here, it is harmless, because
+// the operation should be idempotent.
+const void *VDSOSupport::Init() {
+  if (vdso_base_ == ElfMemImage::kInvalidBase) {
+    // Valgrind zaps AT_SYSINFO_EHDR and friends from the auxv[]
+    // on stack, and so glibc works as if VDSO was not present.
+    // But going directly to kernel via /proc/self/auxv below bypasses
+    // Valgrind zapping. So we check for Valgrind separately.
+    if (RunningOnValgrind()) {
+      vdso_base_ = NULL;
+      return NULL;
+    }
+    int fd = open("/proc/self/auxv", O_RDONLY);
+    if (fd == -1) {
+      // Kernel too old to have a VDSO.
+      vdso_base_ = NULL;
+      return NULL;
+    }
+    ElfW(auxv_t) aux;
+    while (read(fd, &aux, sizeof(aux)) == sizeof(aux)) {
+      if (aux.a_type == AT_SYSINFO_EHDR) {
+        COMPILE_ASSERT(sizeof(vdso_base_) == sizeof(aux.a_un.a_val),
+                       unexpected_sizeof_pointer_NE_sizeof_a_val);
+        vdso_base_ = reinterpret_cast(aux.a_un.a_val);
+        break;
+      }
+    }
+    close(fd);
+    if (vdso_base_ == ElfMemImage::kInvalidBase) {
+      // Didn't find AT_SYSINFO_EHDR in auxv[].
+      vdso_base_ = NULL;
+    }
+  }
+  return vdso_base_;
+}
+
+const void *VDSOSupport::SetBase(const void *base) {
+  CHECK(base != ElfMemImage::kInvalidBase);
+  const void *old_base = vdso_base_;
+  vdso_base_ = base;
+  image_.Init(base);
+  return old_base;
+}
+
+bool VDSOSupport::LookupSymbol(const char *name,
+                               const char *version,
+                               int type,
+                               SymbolInfo *info) const {
+  return image_.LookupSymbol(name, version, type, info);
+}
+
+bool VDSOSupport::LookupSymbolByAddress(const void *address,
+                                        SymbolInfo *info_out) const {
+  return image_.LookupSymbolByAddress(address, info_out);
+}
+
+// We need to make sure VDSOSupport::Init() is called before
+// the main() runs, since it might do something like setuid or
+// chroot.  If VDSOSupport
+// is used in any global constructor, this will happen, since
+// VDSOSupport's constructor calls Init.  But if not, we need to
+// ensure it here, with a global constructor of our own.  This
+// is an allowed exception to the normal rule against non-trivial
+// global constructors.
+static class VDSOInitHelper {
+ public:
+  VDSOInitHelper() { VDSOSupport::Init(); }
+} vdso_init_helper;
+}
+
+#endif  // HAVE_VDSO_SUPPORT
diff --git a/trunk/3rdparty/gperftools-2-fit/src/base/vdso_support.h b/trunk/3rdparty/gperftools-2-fit/src/base/vdso_support.h
new file mode 100644
index 000000000..073386ce2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/base/vdso_support.h
@@ -0,0 +1,137 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Paul Pluzhnikov
+//
+// Allow dynamic symbol lookup in the kernel VDSO page.
+//
+// VDSO stands for "Virtual Dynamic Shared Object" -- a page of
+// executable code, which looks like a shared library, but doesn't
+// necessarily exist anywhere on disk, and which gets mmap()ed into
+// every process by kernels which support VDSO, such as 2.6.x for 32-bit
+// executables, and 2.6.24 and above for 64-bit executables.
+//
+// More details could be found here:
+// http://www.trilithium.com/johan/2005/08/linux-gate/
+//
+// VDSOSupport -- a class representing kernel VDSO (if present).
+//
+// Example usage:
+//  VDSOSupport vdso;
+//  VDSOSupport::SymbolInfo info;
+//  typedef (*FN)(unsigned *, void *, void *);
+//  FN fn = NULL;
+//  if (vdso.LookupSymbol("__vdso_getcpu", "LINUX_2.6", STT_FUNC, &info)) {
+//     fn = reinterpret_cast(info.address);
+//  }
+
+#ifndef BASE_VDSO_SUPPORT_H_
+#define BASE_VDSO_SUPPORT_H_
+
+#include 
+#include "base/basictypes.h"
+#include "base/elf_mem_image.h"
+
+#ifdef HAVE_ELF_MEM_IMAGE
+
+// Enable VDSO support only for the architectures/operating systems that
+// support it.
+#if defined(__linux__) && (defined(__i386__) || defined(__PPC__))
+#define HAVE_VDSO_SUPPORT 1
+#endif
+
+#include      // for NULL
+
+namespace base {
+
+// NOTE: this class may be used from within tcmalloc, and can not
+// use any memory allocation routines.
+class VDSOSupport {
+ public:
+  VDSOSupport();
+
+  typedef ElfMemImage::SymbolInfo SymbolInfo;
+  typedef ElfMemImage::SymbolIterator SymbolIterator;
+
+  // Answers whether we have a vdso at all.
+  bool IsPresent() const { return image_.IsPresent(); }
+
+  // Allow to iterate over all VDSO symbols.
+  SymbolIterator begin() const { return image_.begin(); }
+  SymbolIterator end() const { return image_.end(); }
+
+  // Look up versioned dynamic symbol in the kernel VDSO.
+  // Returns false if VDSO is not present, or doesn't contain given
+  // symbol/version/type combination.
+  // If info_out != NULL, additional details are filled in.
+  bool LookupSymbol(const char *name, const char *version,
+                    int symbol_type, SymbolInfo *info_out) const;
+
+  // Find info about symbol (if any) which overlaps given address.
+  // Returns true if symbol was found; false if VDSO isn't present
+  // or doesn't have a symbol overlapping given address.
+  // If info_out != NULL, additional details are filled in.
+  bool LookupSymbolByAddress(const void *address, SymbolInfo *info_out) const;
+
+  // Used only for testing. Replace real VDSO base with a mock.
+  // Returns previous value of vdso_base_. After you are done testing,
+  // you are expected to call SetBase() with previous value, in order to
+  // reset state to the way it was.
+  const void *SetBase(const void *s);
+
+  // Computes vdso_base_ and returns it. Should be called as early as
+  // possible; before any thread creation, chroot or setuid.
+  static const void *Init();
+
+ private:
+  // image_ represents VDSO ELF image in memory.
+  // image_.ehdr_ == NULL implies there is no VDSO.
+  ElfMemImage image_;
+
+  // Cached value of auxv AT_SYSINFO_EHDR, computed once.
+  // This is a tri-state:
+  //   kInvalidBase   => value hasn't been determined yet.
+  //              0   => there is no VDSO.
+  //           else   => vma of VDSO Elf{32,64}_Ehdr.
+  //
+  // When testing with mock VDSO, low bit is set.
+  // The low bit is always available because vdso_base_ is
+  // page-aligned.
+  static const void *vdso_base_;
+
+  DISALLOW_COPY_AND_ASSIGN(VDSOSupport);
+};
+
+}  // namespace base
+
+#endif  // HAVE_ELF_MEM_IMAGE
+
+#endif  // BASE_VDSO_SUPPORT_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/central_freelist.cc b/trunk/3rdparty/gperftools-2-fit/src/central_freelist.cc
new file mode 100644
index 000000000..d064c2fcb
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/central_freelist.cc
@@ -0,0 +1,384 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#include "config.h"
+#include 
+#include "central_freelist.h"
+#include "internal_logging.h"  // for ASSERT, MESSAGE
+#include "linked_list.h"       // for SLL_Next, SLL_Push, etc
+#include "page_heap.h"         // for PageHeap
+#include "static_vars.h"       // for Static
+
+using std::min;
+using std::max;
+
+namespace tcmalloc {
+
+void CentralFreeList::Init(size_t cl) {
+  size_class_ = cl;
+  tcmalloc::DLL_Init(&empty_);
+  tcmalloc::DLL_Init(&nonempty_);
+  num_spans_ = 0;
+  counter_ = 0;
+
+  max_cache_size_ = kMaxNumTransferEntries;
+#ifdef TCMALLOC_SMALL_BUT_SLOW
+  // Disable the transfer cache for the small footprint case.
+  cache_size_ = 0;
+#else
+  cache_size_ = 16;
+#endif
+  if (cl > 0) {
+    // Limit the maximum size of the cache based on the size class.  If this
+    // is not done, large size class objects will consume a lot of memory if
+    // they just sit in the transfer cache.
+    int32_t bytes = Static::sizemap()->ByteSizeForClass(cl);
+    int32_t objs_to_move = Static::sizemap()->num_objects_to_move(cl);
+
+    ASSERT(objs_to_move > 0 && bytes > 0);
+    // Limit each size class cache to at most 1MB of objects or one entry,
+    // whichever is greater. Total transfer cache memory used across all
+    // size classes then can't be greater than approximately
+    // 1MB * kMaxNumTransferEntries.
+    // min and max are in parens to avoid macro-expansion on windows.
+    max_cache_size_ = (min)(max_cache_size_,
+                          (max)(1, (1024 * 1024) / (bytes * objs_to_move)));
+    cache_size_ = (min)(cache_size_, max_cache_size_);
+  }
+  used_slots_ = 0;
+  ASSERT(cache_size_ <= max_cache_size_);
+}
+
+void CentralFreeList::ReleaseListToSpans(void* start) {
+  while (start) {
+    void *next = SLL_Next(start);
+    ReleaseToSpans(start);
+    start = next;
+  }
+}
+
+// MapObjectToSpan should logically be part of ReleaseToSpans.  But
+// this triggers an optimization bug in gcc 4.5.0.  Moving to a
+// separate function, and making sure that function isn't inlined,
+// seems to fix the problem.  It also should be fixed for gcc 4.5.1.
+static
+#if __GNUC__ == 4 && __GNUC_MINOR__ == 5 && __GNUC_PATCHLEVEL__ == 0
+__attribute__ ((noinline))
+#endif
+Span* MapObjectToSpan(void* object) {
+  const PageID p = reinterpret_cast(object) >> kPageShift;
+  Span* span = Static::pageheap()->GetDescriptor(p);
+  return span;
+}
+
+void CentralFreeList::ReleaseToSpans(void* object) {
+  Span* span = MapObjectToSpan(object);
+  ASSERT(span != NULL);
+  ASSERT(span->refcount > 0);
+
+  // If span is empty, move it to non-empty list
+  if (span->objects == NULL) {
+    tcmalloc::DLL_Remove(span);
+    tcmalloc::DLL_Prepend(&nonempty_, span);
+  }
+
+  // The following check is expensive, so it is disabled by default
+  if (false) {
+    // Check that object does not occur in list
+    int got = 0;
+    for (void* p = span->objects; p != NULL; p = *((void**) p)) {
+      ASSERT(p != object);
+      got++;
+    }
+    ASSERT(got + span->refcount ==
+           (span->length<ByteSizeForClass(span->sizeclass));
+  }
+
+  counter_++;
+  span->refcount--;
+  if (span->refcount == 0) {
+    counter_ -= ((span->length<ByteSizeForClass(span->sizeclass));
+    tcmalloc::DLL_Remove(span);
+    --num_spans_;
+
+    // Release central list lock while operating on pageheap
+    lock_.Unlock();
+    {
+      SpinLockHolder h(Static::pageheap_lock());
+      Static::pageheap()->Delete(span);
+    }
+    lock_.Lock();
+  } else {
+    *(reinterpret_cast(object)) = span->objects;
+    span->objects = object;
+  }
+}
+
+bool CentralFreeList::EvictRandomSizeClass(
+    int locked_size_class, bool force) {
+  static int race_counter = 0;
+  int t = race_counter++;  // Updated without a lock, but who cares.
+  if (t >= Static::num_size_classes()) {
+    while (t >= Static::num_size_classes()) {
+      t -= Static::num_size_classes();
+    }
+    race_counter = t;
+  }
+  ASSERT(t >= 0);
+  ASSERT(t < Static::num_size_classes());
+  if (t == locked_size_class) return false;
+  return Static::central_cache()[t].ShrinkCache(locked_size_class, force);
+}
+
+bool CentralFreeList::MakeCacheSpace() {
+  // Is there room in the cache?
+  if (used_slots_ < cache_size_) return true;
+  // Check if we can expand this cache?
+  if (cache_size_ == max_cache_size_) return false;
+  // Ok, we'll try to grab an entry from some other size class.
+  if (EvictRandomSizeClass(size_class_, false) ||
+      EvictRandomSizeClass(size_class_, true)) {
+    // Succeeded in evicting, we're going to make our cache larger.
+    // However, we may have dropped and re-acquired the lock in
+    // EvictRandomSizeClass (via ShrinkCache and the LockInverter), so the
+    // cache_size may have changed.  Therefore, check and verify that it is
+    // still OK to increase the cache_size.
+    if (cache_size_ < max_cache_size_) {
+      cache_size_++;
+      return true;
+    }
+  }
+  return false;
+}
+
+
+namespace {
+class LockInverter {
+ private:
+  SpinLock *held_, *temp_;
+ public:
+  inline explicit LockInverter(SpinLock* held, SpinLock *temp)
+    : held_(held), temp_(temp) { held_->Unlock(); temp_->Lock(); }
+  inline ~LockInverter() { temp_->Unlock(); held_->Lock();  }
+};
+}
+
+// This function is marked as NO_THREAD_SAFETY_ANALYSIS because it uses
+// LockInverter to release one lock and acquire another in scoped-lock
+// style, which our current annotation/analysis does not support.
+bool CentralFreeList::ShrinkCache(int locked_size_class, bool force)
+    NO_THREAD_SAFETY_ANALYSIS {
+  // Start with a quick check without taking a lock.
+  if (cache_size_ == 0) return false;
+  // We don't evict from a full cache unless we are 'forcing'.
+  if (force == false && used_slots_ == cache_size_) return false;
+
+  // Grab lock, but first release the other lock held by this thread.  We use
+  // the lock inverter to ensure that we never hold two size class locks
+  // concurrently.  That can create a deadlock because there is no well
+  // defined nesting order.
+  LockInverter li(&Static::central_cache()[locked_size_class].lock_, &lock_);
+  ASSERT(used_slots_ <= cache_size_);
+  ASSERT(0 <= cache_size_);
+  if (cache_size_ == 0) return false;
+  if (used_slots_ == cache_size_) {
+    if (force == false) return false;
+    // ReleaseListToSpans releases the lock, so we have to make all the
+    // updates to the central list before calling it.
+    cache_size_--;
+    used_slots_--;
+    ReleaseListToSpans(tc_slots_[used_slots_].head);
+    return true;
+  }
+  cache_size_--;
+  return true;
+}
+
+void CentralFreeList::InsertRange(void *start, void *end, int N) {
+  SpinLockHolder h(&lock_);
+  if (N == Static::sizemap()->num_objects_to_move(size_class_) &&
+    MakeCacheSpace()) {
+    int slot = used_slots_++;
+    ASSERT(slot >=0);
+    ASSERT(slot < max_cache_size_);
+    TCEntry *entry = &tc_slots_[slot];
+    entry->head = start;
+    entry->tail = end;
+    return;
+  }
+  ReleaseListToSpans(start);
+}
+
+int CentralFreeList::RemoveRange(void **start, void **end, int N) {
+  ASSERT(N > 0);
+  lock_.Lock();
+  if (N == Static::sizemap()->num_objects_to_move(size_class_) &&
+      used_slots_ > 0) {
+    int slot = --used_slots_;
+    ASSERT(slot >= 0);
+    TCEntry *entry = &tc_slots_[slot];
+    *start = entry->head;
+    *end = entry->tail;
+    lock_.Unlock();
+    return N;
+  }
+
+  int result = 0;
+  *start = NULL;
+  *end = NULL;
+  // TODO: Prefetch multiple TCEntries?
+  result = FetchFromOneSpansSafe(N, start, end);
+  if (result != 0) {
+    while (result < N) {
+      int n;
+      void* head = NULL;
+      void* tail = NULL;
+      n = FetchFromOneSpans(N - result, &head, &tail);
+      if (!n) break;
+      result += n;
+      SLL_PushRange(start, head, tail);
+    }
+  }
+  lock_.Unlock();
+  return result;
+}
+
+
+int CentralFreeList::FetchFromOneSpansSafe(int N, void **start, void **end) {
+  int result = FetchFromOneSpans(N, start, end);
+  if (!result) {
+    Populate();
+    result = FetchFromOneSpans(N, start, end);
+  }
+  return result;
+}
+
+int CentralFreeList::FetchFromOneSpans(int N, void **start, void **end) {
+  if (tcmalloc::DLL_IsEmpty(&nonempty_)) return 0;
+  Span* span = nonempty_.next;
+
+  ASSERT(span->objects != NULL);
+
+  int result = 0;
+  void *prev, *curr;
+  curr = span->objects;
+  do {
+    prev = curr;
+    curr = *(reinterpret_cast(curr));
+  } while (++result < N && curr != NULL);
+
+  if (curr == NULL) {
+    // Move to empty list
+    tcmalloc::DLL_Remove(span);
+    tcmalloc::DLL_Prepend(&empty_, span);
+  }
+
+  *start = span->objects;
+  *end = prev;
+  span->objects = curr;
+  SLL_SetNext(*end, NULL);
+  span->refcount += result;
+  counter_ -= result;
+  return result;
+}
+
+// Fetch memory from the system and add to the central cache freelist.
+void CentralFreeList::Populate() {
+  // Release central list lock while operating on pageheap
+  lock_.Unlock();
+  const size_t npages = Static::sizemap()->class_to_pages(size_class_);
+
+  Span* span;
+  {
+    SpinLockHolder h(Static::pageheap_lock());
+    span = Static::pageheap()->New(npages);
+    if (span) Static::pageheap()->RegisterSizeClass(span, size_class_);
+  }
+  if (span == NULL) {
+    Log(kLog, __FILE__, __LINE__,
+        "tcmalloc: allocation failed", npages << kPageShift);
+    lock_.Lock();
+    return;
+  }
+  ASSERT(span->length == npages);
+  // Cache sizeclass info eagerly.  Locking is not necessary.
+  // (Instead of being eager, we could just replace any stale info
+  // about this span, but that seems to be no better in practice.)
+  for (int i = 0; i < npages; i++) {
+    Static::pageheap()->SetCachedSizeClass(span->start + i, size_class_);
+  }
+
+  // Split the block into pieces and add to the free-list
+  // TODO: coloring of objects to avoid cache conflicts?
+  void** tail = &span->objects;
+  char* ptr = reinterpret_cast(span->start << kPageShift);
+  char* limit = ptr + (npages << kPageShift);
+  const size_t size = Static::sizemap()->ByteSizeForClass(size_class_);
+  int num = 0;
+  while (ptr + size <= limit) {
+    *tail = ptr;
+    tail = reinterpret_cast(ptr);
+    ptr += size;
+    num++;
+  }
+  ASSERT(ptr <= limit);
+  *tail = NULL;
+  span->refcount = 0; // No sub-object in use yet
+
+  // Add span to list of non-empty spans
+  lock_.Lock();
+  tcmalloc::DLL_Prepend(&nonempty_, span);
+  ++num_spans_;
+  counter_ += num;
+}
+
+int CentralFreeList::tc_length() {
+  SpinLockHolder h(&lock_);
+  return used_slots_ * Static::sizemap()->num_objects_to_move(size_class_);
+}
+
+size_t CentralFreeList::OverheadBytes() {
+  SpinLockHolder h(&lock_);
+  if (size_class_ == 0) {  // 0 holds the 0-sized allocations
+    return 0;
+  }
+  const size_t pages_per_span = Static::sizemap()->class_to_pages(size_class_);
+  const size_t object_size = Static::sizemap()->class_to_size(size_class_);
+  ASSERT(object_size > 0);
+  const size_t overhead_per_span = (pages_per_span * kPageSize) % object_size;
+  return num_spans_ * overhead_per_span;
+}
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/central_freelist.h b/trunk/3rdparty/gperftools-2-fit/src/central_freelist.h
new file mode 100644
index 000000000..0f66e0cc0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/central_freelist.h
@@ -0,0 +1,211 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#ifndef TCMALLOC_CENTRAL_FREELIST_H_
+#define TCMALLOC_CENTRAL_FREELIST_H_
+
+#include "config.h"
+#include                      // for size_t
+#ifdef HAVE_STDINT_H
+#include                      // for int32_t
+#endif
+#include "base/spinlock.h"
+#include "base/thread_annotations.h"
+#include "common.h"
+#include "span.h"
+
+namespace tcmalloc {
+
+// Data kept per size-class in central cache.
+class CentralFreeList {
+ public:
+  // A CentralFreeList may be used before its constructor runs.
+  // So we prevent lock_'s constructor from doing anything to the
+  // lock_ state.
+  CentralFreeList() : lock_(base::LINKER_INITIALIZED) { }
+
+  void Init(size_t cl);
+
+  // These methods all do internal locking.
+
+  // Insert the specified range into the central freelist.  N is the number of
+  // elements in the range.  RemoveRange() is the opposite operation.
+  void InsertRange(void *start, void *end, int N);
+
+  // Returns the actual number of fetched elements and sets *start and *end.
+  int RemoveRange(void **start, void **end, int N);
+
+  // Returns the number of free objects in cache.
+  int length() {
+    SpinLockHolder h(&lock_);
+    return counter_;
+  }
+
+  // Returns the number of free objects in the transfer cache.
+  int tc_length();
+
+  // Returns the memory overhead (internal fragmentation) attributable
+  // to the freelist.  This is memory lost when the size of elements
+  // in a freelist doesn't exactly divide the page-size (an 8192-byte
+  // page full of 5-byte objects would have 2 bytes memory overhead).
+  size_t OverheadBytes();
+
+  // Lock/Unlock the internal SpinLock. Used on the pthread_atfork call
+  // to set the lock in a consistent state before the fork.
+  void Lock() EXCLUSIVE_LOCK_FUNCTION(lock_) {
+    lock_.Lock();
+  }
+
+  void Unlock() UNLOCK_FUNCTION(lock_) {
+    lock_.Unlock();
+  }
+
+ private:
+  // TransferCache is used to cache transfers of
+  // sizemap.num_objects_to_move(size_class) back and forth between
+  // thread caches and the central cache for a given size class.
+  struct TCEntry {
+    void *head;  // Head of chain of objects.
+    void *tail;  // Tail of chain of objects.
+  };
+
+  // A central cache freelist can have anywhere from 0 to kMaxNumTransferEntries
+  // slots to put link list chains into.
+#ifdef TCMALLOC_SMALL_BUT_SLOW
+  // For the small memory model, the transfer cache is not used.
+  static const int kMaxNumTransferEntries = 0;
+#else
+  // Starting point for the the maximum number of entries in the transfer cache.
+  // This actual maximum for a given size class may be lower than this
+  // maximum value.
+  static const int kMaxNumTransferEntries = 64;
+#endif
+
+  // REQUIRES: lock_ is held
+  // Remove object from cache and return.
+  // Return NULL if no free entries in cache.
+  int FetchFromOneSpans(int N, void **start, void **end) EXCLUSIVE_LOCKS_REQUIRED(lock_);
+
+  // REQUIRES: lock_ is held
+  // Remove object from cache and return.  Fetches
+  // from pageheap if cache is empty.  Only returns
+  // NULL on allocation failure.
+  int FetchFromOneSpansSafe(int N, void **start, void **end) EXCLUSIVE_LOCKS_REQUIRED(lock_);
+
+  // REQUIRES: lock_ is held
+  // Release a linked list of objects to spans.
+  // May temporarily release lock_.
+  void ReleaseListToSpans(void *start) EXCLUSIVE_LOCKS_REQUIRED(lock_);
+
+  // REQUIRES: lock_ is held
+  // Release an object to spans.
+  // May temporarily release lock_.
+  void ReleaseToSpans(void* object) EXCLUSIVE_LOCKS_REQUIRED(lock_);
+
+  // REQUIRES: lock_ is held
+  // Populate cache by fetching from the page heap.
+  // May temporarily release lock_.
+  void Populate() EXCLUSIVE_LOCKS_REQUIRED(lock_);
+
+  // REQUIRES: lock is held.
+  // Tries to make room for a TCEntry.  If the cache is full it will try to
+  // expand it at the cost of some other cache size.  Return false if there is
+  // no space.
+  bool MakeCacheSpace() EXCLUSIVE_LOCKS_REQUIRED(lock_);
+
+  // REQUIRES: lock_ for locked_size_class is held.
+  // Picks a "random" size class to steal TCEntry slot from.  In reality it
+  // just iterates over the sizeclasses but does so without taking a lock.
+  // Returns true on success.
+  // May temporarily lock a "random" size class.
+  static bool EvictRandomSizeClass(int locked_size_class, bool force);
+
+  // REQUIRES: lock_ is *not* held.
+  // Tries to shrink the Cache.  If force is true it will relase objects to
+  // spans if it allows it to shrink the cache.  Return false if it failed to
+  // shrink the cache.  Decrements cache_size_ on succeess.
+  // May temporarily take lock_.  If it takes lock_, the locked_size_class
+  // lock is released to keep the thread from holding two size class locks
+  // concurrently which could lead to a deadlock.
+  bool ShrinkCache(int locked_size_class, bool force) LOCKS_EXCLUDED(lock_);
+
+  // This lock protects all the data members.  cached_entries and cache_size_
+  // may be looked at without holding the lock.
+  SpinLock lock_;
+
+  // We keep linked lists of empty and non-empty spans.
+  size_t   size_class_;     // My size class
+  Span     empty_;          // Dummy header for list of empty spans
+  Span     nonempty_;       // Dummy header for list of non-empty spans
+  size_t   num_spans_;      // Number of spans in empty_ plus nonempty_
+  size_t   counter_;        // Number of free objects in cache entry
+
+  // Here we reserve space for TCEntry cache slots.  Space is preallocated
+  // for the largest possible number of entries than any one size class may
+  // accumulate.  Not all size classes are allowed to accumulate
+  // kMaxNumTransferEntries, so there is some wasted space for those size
+  // classes.
+  TCEntry tc_slots_[kMaxNumTransferEntries];
+
+  // Number of currently used cached entries in tc_slots_.  This variable is
+  // updated under a lock but can be read without one.
+  int32_t used_slots_;
+  // The current number of slots for this size class.  This is an
+  // adaptive value that is increased if there is lots of traffic
+  // on a given size class.
+  int32_t cache_size_;
+  // Maximum size of the cache for a given size class.
+  int32_t max_cache_size_;
+};
+
+// Pads each CentralCache object to multiple of 64 bytes.  Since some
+// compilers (such as MSVC) don't like it when the padding is 0, I use
+// template specialization to remove the padding entirely when
+// sizeof(CentralFreeList) is a multiple of 64.
+template
+class CentralFreeListPaddedTo : public CentralFreeList {
+ private:
+  char pad_[64 - kFreeListSizeMod64];
+};
+
+template<>
+class CentralFreeListPaddedTo<0> : public CentralFreeList {
+};
+
+class CentralFreeListPadded : public CentralFreeListPaddedTo<
+  sizeof(CentralFreeList) % 64> {
+};
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_CENTRAL_FREELIST_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/common.cc b/trunk/3rdparty/gperftools-2-fit/src/common.cc
new file mode 100644
index 000000000..5e9e11ee5
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/common.cc
@@ -0,0 +1,291 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#include  // for getenv and strtol
+#include "config.h"
+#include "common.h"
+#include "system-alloc.h"
+#include "base/spinlock.h"
+#include "getenv_safe.h" // TCMallocGetenvSafe
+
+namespace tcmalloc {
+
+// Define the maximum number of object per classe type to transfer between
+// thread and central caches.
+static int32 FLAGS_tcmalloc_transfer_num_objects;
+
+static const int32 kDefaultTransferNumObjecs = 32;
+
+// The init function is provided to explicit initialize the variable value
+// from the env. var to avoid C++ global construction that might defer its
+// initialization after a malloc/new call.
+static inline void InitTCMallocTransferNumObjects()
+{
+  if (FLAGS_tcmalloc_transfer_num_objects == 0) {
+    const char *envval = TCMallocGetenvSafe("TCMALLOC_TRANSFER_NUM_OBJ");
+    FLAGS_tcmalloc_transfer_num_objects = !envval ? kDefaultTransferNumObjecs :
+      strtol(envval, NULL, 10);
+  }
+}
+
+// Note: the following only works for "n"s that fit in 32-bits, but
+// that is fine since we only use it for small sizes.
+static inline int LgFloor(size_t n) {
+  int log = 0;
+  for (int i = 4; i >= 0; --i) {
+    int shift = (1 << i);
+    size_t x = n >> shift;
+    if (x != 0) {
+      n = x;
+      log += shift;
+    }
+  }
+  ASSERT(n == 1);
+  return log;
+}
+
+int AlignmentForSize(size_t size) {
+  int alignment = kAlignment;
+  if (size > kMaxSize) {
+    // Cap alignment at kPageSize for large sizes.
+    alignment = kPageSize;
+  } else if (size >= 128) {
+    // Space wasted due to alignment is at most 1/8, i.e., 12.5%.
+    alignment = (1 << LgFloor(size)) / 8;
+  } else if (size >= kMinAlign) {
+    // We need an alignment of at least 16 bytes to satisfy
+    // requirements for some SSE types.
+    alignment = kMinAlign;
+  }
+  // Maximum alignment allowed is page size alignment.
+  if (alignment > kPageSize) {
+    alignment = kPageSize;
+  }
+  CHECK_CONDITION(size < kMinAlign || alignment >= kMinAlign);
+  CHECK_CONDITION((alignment & (alignment - 1)) == 0);
+  return alignment;
+}
+
+int SizeMap::NumMoveSize(size_t size) {
+  if (size == 0) return 0;
+  // Use approx 64k transfers between thread and central caches.
+  int num = static_cast(64.0 * 1024.0 / size);
+  if (num < 2) num = 2;
+
+  // Avoid bringing too many objects into small object free lists.
+  // If this value is too large:
+  // - We waste memory with extra objects sitting in the thread caches.
+  // - The central freelist holds its lock for too long while
+  //   building a linked list of objects, slowing down the allocations
+  //   of other threads.
+  // If this value is too small:
+  // - We go to the central freelist too often and we have to acquire
+  //   its lock each time.
+  // This value strikes a balance between the constraints above.
+  if (num > FLAGS_tcmalloc_transfer_num_objects)
+    num = FLAGS_tcmalloc_transfer_num_objects;
+
+  return num;
+}
+
+// Initialize the mapping arrays
+void SizeMap::Init() {
+  InitTCMallocTransferNumObjects();
+
+  // Do some sanity checking on add_amount[]/shift_amount[]/class_array[]
+  if (ClassIndex(0) != 0) {
+    Log(kCrash, __FILE__, __LINE__,
+        "Invalid class index for size 0", ClassIndex(0));
+  }
+  if (ClassIndex(kMaxSize) >= sizeof(class_array_)) {
+    Log(kCrash, __FILE__, __LINE__,
+        "Invalid class index for kMaxSize", ClassIndex(kMaxSize));
+  }
+
+  // Compute the size classes we want to use
+  int sc = 1;   // Next size class to assign
+  int alignment = kAlignment;
+  CHECK_CONDITION(kAlignment <= kMinAlign);
+  for (size_t size = kAlignment; size <= kMaxSize; size += alignment) {
+    alignment = AlignmentForSize(size);
+    CHECK_CONDITION((size % alignment) == 0);
+
+    int blocks_to_move = NumMoveSize(size) / 4;
+    size_t psize = 0;
+    do {
+      psize += kPageSize;
+      // Allocate enough pages so leftover is less than 1/8 of total.
+      // This bounds wasted space to at most 12.5%.
+      while ((psize % size) > (psize >> 3)) {
+        psize += kPageSize;
+      }
+      // Continue to add pages until there are at least as many objects in
+      // the span as are needed when moving objects from the central
+      // freelists and spans to the thread caches.
+    } while ((psize / size) < (blocks_to_move));
+    const size_t my_pages = psize >> kPageShift;
+
+    if (sc > 1 && my_pages == class_to_pages_[sc-1]) {
+      // See if we can merge this into the previous class without
+      // increasing the fragmentation of the previous class.
+      const size_t my_objects = (my_pages << kPageShift) / size;
+      const size_t prev_objects = (class_to_pages_[sc-1] << kPageShift)
+                                  / class_to_size_[sc-1];
+      if (my_objects == prev_objects) {
+        // Adjust last class to include this size
+        class_to_size_[sc-1] = size;
+        continue;
+      }
+    }
+
+    // Add new class
+    class_to_pages_[sc] = my_pages;
+    class_to_size_[sc] = size;
+    sc++;
+  }
+  num_size_classes = sc;
+  if (sc > kClassSizesMax) {
+    Log(kCrash, __FILE__, __LINE__,
+        "too many size classes: (found vs. max)", sc, kClassSizesMax);
+  }
+
+  // Initialize the mapping arrays
+  int next_size = 0;
+  for (int c = 1; c < num_size_classes; c++) {
+    const int max_size_in_class = class_to_size_[c];
+    for (int s = next_size; s <= max_size_in_class; s += kAlignment) {
+      class_array_[ClassIndex(s)] = c;
+    }
+    next_size = max_size_in_class + kAlignment;
+  }
+
+  // Double-check sizes just to be safe
+  for (size_t size = 0; size <= kMaxSize;) {
+    const int sc = SizeClass(size);
+    if (sc <= 0 || sc >= num_size_classes) {
+      Log(kCrash, __FILE__, __LINE__,
+          "Bad size class (class, size)", sc, size);
+    }
+    if (sc > 1 && size <= class_to_size_[sc-1]) {
+      Log(kCrash, __FILE__, __LINE__,
+          "Allocating unnecessarily large class (class, size)", sc, size);
+    }
+    const size_t s = class_to_size_[sc];
+    if (size > s || s == 0) {
+      Log(kCrash, __FILE__, __LINE__,
+          "Bad (class, size, requested)", sc, s, size);
+    }
+    if (size <= kMaxSmallSize) {
+      size += 8;
+    } else {
+      size += 128;
+    }
+  }
+
+  // Our fast-path aligned allocation functions rely on 'naturally
+  // aligned' sizes to produce aligned addresses. Lets check if that
+  // holds for size classes that we produced.
+  //
+  // I.e. we're checking that
+  //
+  // align = (1 << shift), malloc(i * align) % align == 0,
+  //
+  // for all align values up to kPageSize.
+  for (size_t align = kMinAlign; align <= kPageSize; align <<= 1) {
+    for (size_t size = align; size < kPageSize; size += align) {
+      CHECK_CONDITION(class_to_size_[SizeClass(size)] % align == 0);
+    }
+  }
+
+  // Initialize the num_objects_to_move array.
+  for (size_t cl = 1; cl  < num_size_classes; ++cl) {
+    num_objects_to_move_[cl] = NumMoveSize(ByteSizeForClass(cl));
+  }
+}
+
+// Metadata allocator -- keeps stats about how many bytes allocated.
+static uint64_t metadata_system_bytes_ = 0;
+static const size_t kMetadataAllocChunkSize = 8*1024*1024;
+// As ThreadCache objects are allocated with MetaDataAlloc, and also
+// CACHELINE_ALIGNED, we must use the same alignment as TCMalloc_SystemAlloc.
+static const size_t kMetadataAllignment = sizeof(MemoryAligner);
+
+static char *metadata_chunk_alloc_;
+static size_t metadata_chunk_avail_;
+
+static SpinLock metadata_alloc_lock(SpinLock::LINKER_INITIALIZED);
+
+void* MetaDataAlloc(size_t bytes) {
+  if (bytes >= kMetadataAllocChunkSize) {
+    void *rv = TCMalloc_SystemAlloc(bytes,
+                                    NULL, kMetadataAllignment);
+    if (rv != NULL) {
+      metadata_system_bytes_ += bytes;
+    }
+    return rv;
+  }
+
+  SpinLockHolder h(&metadata_alloc_lock);
+
+  // the following works by essentially turning address to integer of
+  // log_2 kMetadataAllignment size and negating it. I.e. negated
+  // value + original value gets 0 and that's what we want modulo
+  // kMetadataAllignment. Note, we negate before masking higher bits
+  // off, otherwise we'd have to mask them off after negation anyways.
+  intptr_t alignment = -reinterpret_cast(metadata_chunk_alloc_) & (kMetadataAllignment-1);
+
+  if (metadata_chunk_avail_ < bytes + alignment) {
+    size_t real_size;
+    void *ptr = TCMalloc_SystemAlloc(kMetadataAllocChunkSize,
+                                     &real_size, kMetadataAllignment);
+    if (ptr == NULL) {
+      return NULL;
+    }
+
+    metadata_chunk_alloc_ = static_cast(ptr);
+    metadata_chunk_avail_ = real_size;
+
+    alignment = 0;
+  }
+
+  void *rv = static_cast(metadata_chunk_alloc_ + alignment);
+  bytes += alignment;
+  metadata_chunk_alloc_ += bytes;
+  metadata_chunk_avail_ -= bytes;
+  metadata_system_bytes_ += bytes;
+  return rv;
+}
+
+uint64_t metadata_system_bytes() { return metadata_system_bytes_; }
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/common.h b/trunk/3rdparty/gperftools-2-fit/src/common.h
new file mode 100644
index 000000000..caa3e4a2a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/common.h
@@ -0,0 +1,309 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+//
+// Common definitions for tcmalloc code.
+
+#ifndef TCMALLOC_COMMON_H_
+#define TCMALLOC_COMMON_H_
+
+#include "config.h"
+#include                      // for size_t
+#ifdef HAVE_STDINT_H
+#include                      // for uintptr_t, uint64_t
+#endif
+#include "internal_logging.h"  // for ASSERT, etc
+#include "base/basictypes.h"   // for LIKELY, etc
+
+// Type that can hold a page number
+typedef uintptr_t PageID;
+
+// Type that can hold the length of a run of pages
+typedef uintptr_t Length;
+
+//-------------------------------------------------------------------
+// Configuration
+//-------------------------------------------------------------------
+
+#if defined(TCMALLOC_ALIGN_8BYTES)
+// Unless we force to use 8 bytes alignment we use an alignment of
+// at least 16 bytes to statisfy requirements for some SSE types.
+// Keep in mind when using the 16 bytes alignment you can have a space
+// waste due alignment of 25%. (eg malloc of 24 bytes will get 32 bytes)
+static const size_t kMinAlign   = 8;
+#else
+static const size_t kMinAlign   = 16;
+#endif
+
+// Using large pages speeds up the execution at a cost of larger memory use.
+// Deallocation may speed up by a factor as the page map gets 8x smaller, so
+// lookups in the page map result in fewer L2 cache misses, which translates to
+// speedup for application/platform combinations with high L2 cache pressure.
+// As the number of size classes increases with large pages, we increase
+// the thread cache allowance to avoid passing more free ranges to and from
+// central lists.  Also, larger pages are less likely to get freed.
+// These two factors cause a bounded increase in memory use.
+#if defined(TCMALLOC_PAGE_SIZE_SHIFT)
+static const size_t kPageShift  = TCMALLOC_PAGE_SIZE_SHIFT;
+#else
+static const size_t kPageShift  = 13;
+#endif
+
+static const size_t kClassSizesMax = 128;
+
+static const size_t kMaxThreadCacheSize = 4 << 20;
+
+static const size_t kPageSize   = 1 << kPageShift;
+static const size_t kMaxSize    = 256 * 1024;
+static const size_t kAlignment  = 8;
+// For all span-lengths <= kMaxPages we keep an exact-size list in PageHeap.
+static const size_t kMaxPages = 1 << (20 - kPageShift);
+
+// Default bound on the total amount of thread caches.
+#ifdef TCMALLOC_SMALL_BUT_SLOW
+// Make the overall thread cache no bigger than that of a single thread
+// for the small memory footprint case.
+static const size_t kDefaultOverallThreadCacheSize = kMaxThreadCacheSize;
+#else
+static const size_t kDefaultOverallThreadCacheSize = 8u * kMaxThreadCacheSize;
+#endif
+
+// Lower bound on the per-thread cache sizes
+static const size_t kMinThreadCacheSize = kMaxSize * 2;
+
+// The number of bytes one ThreadCache will steal from another when
+// the first ThreadCache is forced to Scavenge(), delaying the
+// next call to Scavenge for this thread.
+static const size_t kStealAmount = 1 << 16;
+
+// The number of times that a deallocation can cause a freelist to
+// go over its max_length() before shrinking max_length().
+static const int kMaxOverages = 3;
+
+// Maximum length we allow a per-thread free-list to have before we
+// move objects from it into the corresponding central free-list.  We
+// want this big to avoid locking the central free-list too often.  It
+// should not hurt to make this list somewhat big because the
+// scavenging code will shrink it down when its contents are not in use.
+static const int kMaxDynamicFreeListLength = 8192;
+
+static const Length kMaxValidPages = (~static_cast(0)) >> kPageShift;
+
+#if __aarch64__ || __x86_64__ || _M_AMD64 || _M_ARM64
+// All current x86_64 processors only look at the lower 48 bits in
+// virtual to physical address translation. The top 16 are all same as
+// bit 47. And bit 47 value 1 reserved for kernel-space addresses in
+// practice. So it is actually 47 usable bits from malloc
+// perspective. This lets us use faster two level page maps on this
+// architecture.
+//
+// There is very similar story on 64-bit arms except it has full 48
+// bits for user-space. Because of that, and because in principle OSes
+// can start giving some of highest-bit-set addresses to user-space,
+// we don't bother to limit x86 to 47 bits.
+//
+// As of now there are published plans to add more bits to x86-64
+// virtual address space, but since 48 bits has been norm for long
+// time and lots of software is relying on it, it will be opt-in from
+// OS perspective. So we can keep doing "48 bits" at least for now.
+static const int kAddressBits = (sizeof(void*) < 8 ? (8 * sizeof(void*)) : 48);
+#else
+// mipsen and ppcs have more general hardware so we have to support
+// full 64-bits of addresses.
+static const int kAddressBits = 8 * sizeof(void*);
+#endif
+
+namespace tcmalloc {
+
+// Convert byte size into pages.  This won't overflow, but may return
+// an unreasonably large value if bytes is huge enough.
+inline Length pages(size_t bytes) {
+  return (bytes >> kPageShift) +
+      ((bytes & (kPageSize - 1)) > 0 ? 1 : 0);
+}
+
+// For larger allocation sizes, we use larger memory alignments to
+// reduce the number of size classes.
+int AlignmentForSize(size_t size);
+
+// Size-class information + mapping
+class SizeMap {
+ private:
+  //-------------------------------------------------------------------
+  // Mapping from size to size_class and vice versa
+  //-------------------------------------------------------------------
+
+  // Sizes <= 1024 have an alignment >= 8.  So for such sizes we have an
+  // array indexed by ceil(size/8).  Sizes > 1024 have an alignment >= 128.
+  // So for these larger sizes we have an array indexed by ceil(size/128).
+  //
+  // We flatten both logical arrays into one physical array and use
+  // arithmetic to compute an appropriate index.  The constants used by
+  // ClassIndex() were selected to make the flattening work.
+  //
+  // Examples:
+  //   Size       Expression                      Index
+  //   -------------------------------------------------------
+  //   0          (0 + 7) / 8                     0
+  //   1          (1 + 7) / 8                     1
+  //   ...
+  //   1024       (1024 + 7) / 8                  128
+  //   1025       (1025 + 127 + (120<<7)) / 128   129
+  //   ...
+  //   32768      (32768 + 127 + (120<<7)) / 128  376
+  static const int kMaxSmallSize = 1024;
+  static const size_t kClassArraySize =
+      ((kMaxSize + 127 + (120 << 7)) >> 7) + 1;
+  unsigned char class_array_[kClassArraySize];
+
+  static inline size_t SmallSizeClass(size_t s) {
+    return (static_cast(s) + 7) >> 3;
+  }
+
+  static inline size_t LargeSizeClass(size_t s) {
+    return (static_cast(s) + 127 + (120 << 7)) >> 7;
+  }
+
+  // If size is no more than kMaxSize, compute index of the
+  // class_array[] entry for it, putting the class index in output
+  // parameter idx and returning true. Otherwise return false.
+  static inline bool ATTRIBUTE_ALWAYS_INLINE ClassIndexMaybe(size_t s,
+                                                             uint32* idx) {
+    if (PREDICT_TRUE(s <= kMaxSmallSize)) {
+      *idx = (static_cast(s) + 7) >> 3;
+      return true;
+    } else if (s <= kMaxSize) {
+      *idx = (static_cast(s) + 127 + (120 << 7)) >> 7;
+      return true;
+    }
+    return false;
+  }
+
+  // Compute index of the class_array[] entry for a given size
+  static inline size_t ClassIndex(size_t s) {
+    // Use unsigned arithmetic to avoid unnecessary sign extensions.
+    ASSERT(0 <= s);
+    ASSERT(s <= kMaxSize);
+    if (PREDICT_TRUE(s <= kMaxSmallSize)) {
+      return SmallSizeClass(s);
+    } else {
+      return LargeSizeClass(s);
+    }
+  }
+
+  // Number of objects to move between a per-thread list and a central
+  // list in one shot.  We want this to be not too small so we can
+  // amortize the lock overhead for accessing the central list.  Making
+  // it too big may temporarily cause unnecessary memory wastage in the
+  // per-thread free list until the scavenger cleans up the list.
+  int num_objects_to_move_[kClassSizesMax];
+
+  int NumMoveSize(size_t size);
+
+  // Mapping from size class to max size storable in that class
+  int32 class_to_size_[kClassSizesMax];
+
+  // Mapping from size class to number of pages to allocate at a time
+  size_t class_to_pages_[kClassSizesMax];
+
+ public:
+  size_t num_size_classes;
+
+  // Constructor should do nothing since we rely on explicit Init()
+  // call, which may or may not be called before the constructor runs.
+  SizeMap() { }
+
+  // Initialize the mapping arrays
+  void Init();
+
+  inline int SizeClass(size_t size) {
+    return class_array_[ClassIndex(size)];
+  }
+
+  // Check if size is small enough to be representable by a size
+  // class, and if it is, put matching size class into *cl. Returns
+  // true iff matching size class was found.
+  inline bool ATTRIBUTE_ALWAYS_INLINE GetSizeClass(size_t size, uint32* cl) {
+    uint32 idx;
+    if (!ClassIndexMaybe(size, &idx)) {
+      return false;
+    }
+    *cl = class_array_[idx];
+    return true;
+  }
+
+  // Get the byte-size for a specified class
+  inline int32 ATTRIBUTE_ALWAYS_INLINE ByteSizeForClass(uint32 cl) {
+    return class_to_size_[cl];
+  }
+
+  // Mapping from size class to max size storable in that class
+  inline int32 class_to_size(uint32 cl) {
+    return class_to_size_[cl];
+  }
+
+  // Mapping from size class to number of pages to allocate at a time
+  inline size_t class_to_pages(uint32 cl) {
+    return class_to_pages_[cl];
+  }
+
+  // Number of objects to move between a per-thread list and a central
+  // list in one shot.  We want this to be not too small so we can
+  // amortize the lock overhead for accessing the central list.  Making
+  // it too big may temporarily cause unnecessary memory wastage in the
+  // per-thread free list until the scavenger cleans up the list.
+  inline int num_objects_to_move(uint32 cl) {
+    return num_objects_to_move_[cl];
+  }
+};
+
+// Allocates "bytes" worth of memory and returns it.  Increments
+// metadata_system_bytes appropriately.  May return NULL if allocation
+// fails.  Requires pageheap_lock is held.
+void* MetaDataAlloc(size_t bytes);
+
+// Returns the total number of bytes allocated from the system.
+// Requires pageheap_lock is held.
+uint64_t metadata_system_bytes();
+
+// size/depth are made the same size as a pointer so that some generic
+// code below can conveniently cast them back and forth to void*.
+static const int kMaxStackDepth = 31;
+struct StackTrace {
+  uintptr_t size;          // Size of object
+  uintptr_t depth;         // Number of PC values stored in array below
+  void*     stack[kMaxStackDepth];
+};
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_COMMON_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/config.h.in b/trunk/3rdparty/gperftools-2-fit/src/config.h.in
new file mode 100644
index 000000000..31d57ab8d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/config.h.in
@@ -0,0 +1,279 @@
+/* src/config.h.in.  Generated from configure.ac by autoheader.  */
+
+
+#ifndef GPERFTOOLS_CONFIG_H_
+#define GPERFTOOLS_CONFIG_H_
+
+
+/* enable aggressive decommit by default */
+#undef ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT
+
+/* Build new/delete operators for overaligned types */
+#undef ENABLE_ALIGNED_NEW_DELETE
+
+/* Build runtime detection for sized delete */
+#undef ENABLE_DYNAMIC_SIZED_DELETE
+
+/* report large allocation */
+#undef ENABLE_LARGE_ALLOC_REPORT
+
+/* Build sized deletion operators */
+#undef ENABLE_SIZED_DELETE
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_ASM_PTRACE_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_CONFLICT_SIGNAL_H
+
+/* define if the compiler supports basic C++11 syntax */
+#undef HAVE_CXX11
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_CYGWIN_SIGNAL_H
+
+/* Define to 1 if you have the declaration of `backtrace', and to 0 if you
+   don't. */
+#undef HAVE_DECL_BACKTRACE
+
+/* Define to 1 if you have the declaration of `cfree', and to 0 if you don't.
+   */
+#undef HAVE_DECL_CFREE
+
+/* Define to 1 if you have the declaration of `memalign', and to 0 if you
+   don't. */
+#undef HAVE_DECL_MEMALIGN
+
+/* Define to 1 if you have the declaration of `nanosleep', and to 0 if you
+   don't. */
+#undef HAVE_DECL_NANOSLEEP
+
+/* Define to 1 if you have the declaration of `posix_memalign', and to 0 if
+   you don't. */
+#undef HAVE_DECL_POSIX_MEMALIGN
+
+/* Define to 1 if you have the declaration of `pvalloc', and to 0 if you
+   don't. */
+#undef HAVE_DECL_PVALLOC
+
+/* Define to 1 if you have the declaration of `sleep', and to 0 if you don't.
+   */
+#undef HAVE_DECL_SLEEP
+
+/* Define to 1 if you have the declaration of `valloc', and to 0 if you don't.
+   */
+#undef HAVE_DECL_VALLOC
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if the system has the type `Elf32_Versym'. */
+#undef HAVE_ELF32_VERSYM
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_EXECINFO_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_FCNTL_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_FEATURES_H
+
+/* Define to 1 if you have the `fork' function. */
+#undef HAVE_FORK
+
+/* Define to 1 if you have the `geteuid' function. */
+#undef HAVE_GETEUID
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_GLOB_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_GRP_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_LIBUNWIND_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_LINUX_PTRACE_H
+
+/* Define if this is Linux that has SIGEV_THREAD_ID */
+#undef HAVE_LINUX_SIGEV_THREAD_ID
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_MALLOC_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have a working `mmap' system call. */
+#undef HAVE_MMAP
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_POLL_H
+
+/* define if libc has program_invocation_name */
+#undef HAVE_PROGRAM_INVOCATION_NAME
+
+/* Define if you have POSIX threads libraries and header files. */
+#undef HAVE_PTHREAD
+
+/* defined to 1 if pthread symbols are exposed even without include pthread.h
+   */
+#undef HAVE_PTHREAD_DESPITE_ASKING_FOR
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_PWD_H
+
+/* Define to 1 if you have the `sbrk' function. */
+#undef HAVE_SBRK
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SCHED_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if the system has the type `struct mallinfo'. */
+#undef HAVE_STRUCT_MALLINFO
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_CDEFS_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_PRCTL_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_RESOURCE_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_SOCKET_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_SYSCALL_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_UCONTEXT_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_SYS_WAIT_H
+
+/* Define to 1 if compiler supports __thread */
+#undef HAVE_TLS
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_UCONTEXT_H
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_UNISTD_H
+
+/* Whether  contains _Unwind_Backtrace */
+#undef HAVE_UNWIND_BACKTRACE
+
+/* Define to 1 if you have the  header file. */
+#undef HAVE_UNWIND_H
+
+/* define if your compiler has __attribute__ */
+#undef HAVE___ATTRIBUTE__
+
+/* define if your compiler supports alignment of functions */
+#undef HAVE___ATTRIBUTE__ALIGNED_FN
+
+/* Define to 1 if compiler supports __environ */
+#undef HAVE___ENVIRON
+
+/* Define to 1 if you have the `__sbrk' function. */
+#undef HAVE___SBRK
+
+/* prefix where we look for installed files */
+#undef INSTALL_PREFIX
+
+/* Define to 1 if int32_t is equivalent to intptr_t */
+#undef INT32_EQUALS_INTPTR
+
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
+#undef LT_OBJDIR
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* How to access the PC from a struct ucontext */
+#undef PC_FROM_UCONTEXT
+
+/* Always the empty-string on non-windows systems. On windows, should be
+   "__declspec(dllexport)". This way, when we compile the dll, we export our
+   functions/classes. It's safe to define this here because config.h is only
+   used internally, to compile the DLL, and every DLL source file #includes
+   "config.h" before anything else. */
+#undef PERFTOOLS_DLL_DECL
+
+/* Mark the systems where we know it's bad if pthreads runs too
+   early before main (before threads are initialized, presumably).  */
+#ifdef __FreeBSD__
+#define PTHREADS_CRASHES_IF_RUN_TOO_EARLY 1
+#endif
+
+/* Define to necessary symbol if this constant uses a non-standard name on
+   your system. */
+#undef PTHREAD_CREATE_JOINABLE
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Define 8 bytes of allocation alignment for tcmalloc */
+#undef TCMALLOC_ALIGN_8BYTES
+
+/* Define internal page size for tcmalloc as number of left bitshift */
+#undef TCMALLOC_PAGE_SIZE_SHIFT
+
+/* Version number of package */
+#undef VERSION
+
+/* C99 says: define this to get the PRI... macros from stdint.h */
+#ifndef __STDC_FORMAT_MACROS
+# define __STDC_FORMAT_MACROS 1
+#endif
+
+
+#ifdef __MINGW32__
+#include "windows/mingw.h"
+#endif
+
+#endif  /* #ifndef GPERFTOOLS_CONFIG_H_ */
+
diff --git a/trunk/3rdparty/gperftools-2-fit/src/config_for_unittests.h b/trunk/3rdparty/gperftools-2-fit/src/config_for_unittests.h
new file mode 100644
index 000000000..12bf61493
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/config_for_unittests.h
@@ -0,0 +1,65 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// All Rights Reserved.
+//
+// Author: Craig Silverstein
+//
+// This file is needed for windows -- unittests are not part of the
+// perftools dll, but still want to include config.h just like the
+// dll does, so they can use internal tools and APIs for testing.
+//
+// The problem is that config.h declares PERFTOOLS_DLL_DECL to be
+// for exporting symbols, but the unittest needs to *import* symbols
+// (since it's not the dll).
+//
+// The solution is to have this file, which is just like config.h but
+// sets PERFTOOLS_DLL_DECL to do a dllimport instead of a dllexport.
+//
+// The reason we need this extra PERFTOOLS_DLL_DECL_FOR_UNITTESTS
+// variable is in case people want to set PERFTOOLS_DLL_DECL explicitly
+// to something other than __declspec(dllexport).  In that case, they
+// may want to use something other than __declspec(dllimport) for the
+// unittest case.  For that, we allow folks to define both
+// PERFTOOLS_DLL_DECL and PERFTOOLS_DLL_DECL_FOR_UNITTESTS explicitly.
+//
+// NOTE: This file is equivalent to config.h on non-windows systems,
+// which never defined PERFTOOLS_DLL_DECL_FOR_UNITTESTS and always
+// define PERFTOOLS_DLL_DECL to the empty string.
+
+#include "config.h"
+
+#undef PERFTOOLS_DLL_DECL
+#ifdef PERFTOOLS_DLL_DECL_FOR_UNITTESTS
+# define PERFTOOLS_DLL_DECL  PERFTOOLS_DLL_DECL_FOR_UNITTESTS
+#else
+# define PERFTOOLS_DLL_DECL  // if DLL_DECL_FOR_UNITTESTS isn't defined, use ""
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/debugallocation.cc b/trunk/3rdparty/gperftools-2-fit/src/debugallocation.cc
new file mode 100644
index 000000000..17cd452fa
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/debugallocation.cc
@@ -0,0 +1,1583 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2000, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Urs Holzle 
+
+#include "config.h"
+#include 
+#ifdef HAVE_FCNTL_H
+#include 
+#endif
+#ifdef HAVE_INTTYPES_H
+#include 
+#endif
+// We only need malloc.h for struct mallinfo.
+#ifdef HAVE_STRUCT_MALLINFO
+// Malloc can be in several places on older versions of OS X.
+# if defined(HAVE_MALLOC_H)
+# include 
+# elif defined(HAVE_MALLOC_MALLOC_H)
+# include 
+# elif defined(HAVE_SYS_MALLOC_H)
+# include 
+# endif
+#endif
+#ifdef HAVE_PTHREAD
+#include 
+#endif
+#include 
+#include 
+#include 
+#ifdef HAVE_MMAP
+#include 
+#endif
+#include 
+#include 
+#ifdef HAVE_UNISTD_H
+#include 
+#endif
+
+#include 
+#include 
+#include 
+#include "addressmap-inl.h"
+#include "base/commandlineflags.h"
+#include "base/googleinit.h"
+#include "base/logging.h"
+#include "base/spinlock.h"
+#include "malloc_hook-inl.h"
+#include "symbolize.h"
+
+// NOTE: due to #define below, tcmalloc.cc will omit tc_XXX
+// definitions. So that debug implementations can be defined
+// instead. We're going to use do_malloc, do_free and other do_XXX
+// functions that are defined in tcmalloc.cc for actual memory
+// management
+#define TCMALLOC_USING_DEBUGALLOCATION
+#include "tcmalloc.cc"
+
+// __THROW is defined in glibc systems.  It means, counter-intuitively,
+// "This function will never throw an exception."  It's an optional
+// optimization tool, but we may need to use it to match glibc prototypes.
+#ifndef __THROW    // I guess we're not on a glibc system
+# define __THROW   // __THROW is just an optimization, so ok to make it ""
+#endif
+
+// On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old
+// form of the name instead.
+#ifndef MAP_ANONYMOUS
+# define MAP_ANONYMOUS MAP_ANON
+#endif
+
+// ========================================================================= //
+
+DEFINE_bool(malloctrace,
+            EnvToBool("TCMALLOC_TRACE", false),
+            "Enables memory (de)allocation tracing to /tmp/google.alloc.");
+#ifdef HAVE_MMAP
+DEFINE_bool(malloc_page_fence,
+            EnvToBool("TCMALLOC_PAGE_FENCE", false),
+            "Enables putting of memory allocations at page boundaries "
+            "with a guard page following the allocation (to catch buffer "
+            "overruns right when they happen).");
+DEFINE_bool(malloc_page_fence_never_reclaim,
+            EnvToBool("TCMALLOC_PAGE_FENCE_NEVER_RECLAIM", false),
+            "Enables making the virtual address space inaccessible "
+            "upon a deallocation instead of returning it and reusing later.");
+#else
+DEFINE_bool(malloc_page_fence, false, "Not usable (requires mmap)");
+DEFINE_bool(malloc_page_fence_never_reclaim, false, "Not usable (required mmap)");
+#endif
+DEFINE_bool(malloc_reclaim_memory,
+            EnvToBool("TCMALLOC_RECLAIM_MEMORY", true),
+            "If set to false, we never return memory to malloc "
+            "when an object is deallocated. This ensures that all "
+            "heap object addresses are unique.");
+DEFINE_int32(max_free_queue_size,
+             EnvToInt("TCMALLOC_MAX_FREE_QUEUE_SIZE", 10*1024*1024),
+             "If greater than 0, keep freed blocks in a queue instead of "
+             "releasing them to the allocator immediately.  Release them when "
+             "the total size of all blocks in the queue would otherwise exceed "
+             "this limit.");
+
+DEFINE_bool(symbolize_stacktrace,
+            EnvToBool("TCMALLOC_SYMBOLIZE_STACKTRACE", true),
+            "Symbolize the stack trace when provided (on some error exits)");
+
+// If we are LD_PRELOAD-ed against a non-pthreads app, then
+// pthread_once won't be defined.  We declare it here, for that
+// case (with weak linkage) which will cause the non-definition to
+// resolve to NULL.  We can then check for NULL or not in Instance.
+extern "C" int pthread_once(pthread_once_t *, void (*)(void))
+    ATTRIBUTE_WEAK;
+
+// ========================================================================= //
+
+// A safe version of printf() that does not do any allocation and
+// uses very little stack space.
+static void TracePrintf(int fd, const char *fmt, ...)
+  __attribute__ ((__format__ (__printf__, 2, 3)));
+
+// Round "value" up to next "alignment" boundary.
+// Requires that "alignment" be a power of two.
+static intptr_t RoundUp(intptr_t value, intptr_t alignment) {
+  return (value + alignment - 1) & ~(alignment - 1);
+}
+
+// ========================================================================= //
+
+class MallocBlock;
+
+// A circular buffer to hold freed blocks of memory.  MallocBlock::Deallocate
+// (below) pushes blocks into this queue instead of returning them to the
+// underlying allocator immediately.  See MallocBlock::Deallocate for more
+// information.
+//
+// We can't use an STL class for this because we need to be careful not to
+// perform any heap de-allocations in any of the code in this class, since the
+// code in MallocBlock::Deallocate is not re-entrant.
+template 
+class FreeQueue {
+ public:
+  FreeQueue() : q_front_(0), q_back_(0) {}
+
+  bool Full() {
+    return (q_front_ + 1) % kFreeQueueSize == q_back_;
+  }
+
+  void Push(const QueueEntry& block) {
+    q_[q_front_] = block;
+    q_front_ = (q_front_ + 1) % kFreeQueueSize;
+  }
+
+  QueueEntry Pop() {
+    RAW_CHECK(q_back_ != q_front_, "Queue is empty");
+    const QueueEntry& ret = q_[q_back_];
+    q_back_ = (q_back_ + 1) % kFreeQueueSize;
+    return ret;
+  }
+
+  size_t size() const {
+    return (q_front_ - q_back_ + kFreeQueueSize) % kFreeQueueSize;
+  }
+
+ private:
+  // Maximum number of blocks kept in the free queue before being freed.
+  static const int kFreeQueueSize = 1024;
+
+  QueueEntry q_[kFreeQueueSize];
+  int q_front_;
+  int q_back_;
+};
+
+struct MallocBlockQueueEntry {
+  MallocBlockQueueEntry() : block(NULL), size(0),
+                            num_deleter_pcs(0), deleter_threadid(0) {}
+  MallocBlockQueueEntry(MallocBlock* b, size_t s) : block(b), size(s) {
+    if (FLAGS_max_free_queue_size != 0 && b != NULL) {
+      // Adjust the number of frames to skip (4) if you change the
+      // location of this call.
+      num_deleter_pcs =
+        MallocHook::GetCallerStackTrace(
+          deleter_pcs,
+          sizeof(deleter_pcs) / sizeof(deleter_pcs[0]),
+          4);
+      deleter_threadid = pthread_self();
+    } else {
+      num_deleter_pcs = 0;
+      // Zero is an illegal pthread id by my reading of the pthread
+      // implementation:
+      deleter_threadid = 0;
+    }
+  }
+
+  MallocBlock* block;
+  size_t size;
+
+  // When deleted and put in the free queue, we (flag-controlled)
+  // record the stack so that if corruption is later found, we can
+  // print the deleter's stack.  (These three vars add 144 bytes of
+  // overhead under the LP64 data model.)
+  void* deleter_pcs[16];
+  int num_deleter_pcs;
+  pthread_t deleter_threadid;
+};
+
+class MallocBlock {
+ public:  // allocation type constants
+
+  // Different allocation types we distinguish.
+  // Note: The lower 4 bits are not random: we index kAllocName array
+  // by these values masked with kAllocTypeMask;
+  // the rest are "random" magic bits to help catch memory corruption.
+  static const int kMallocType = 0xEFCDAB90;
+  static const int kNewType = 0xFEBADC81;
+  static const int kArrayNewType = 0xBCEADF72;
+
+ private:  // constants
+
+  // A mask used on alloc types above to get to 0, 1, 2
+  static const int kAllocTypeMask = 0x3;
+  // An additional bit to set in AllocType constants
+  // to mark now deallocated regions.
+  static const int kDeallocatedTypeBit = 0x4;
+
+  // For better memory debugging, we initialize all storage to known
+  // values, and overwrite the storage when it's deallocated:
+  // Byte that fills uninitialized storage.
+  static const int kMagicUninitializedByte = 0xAB;
+  // Byte that fills deallocated storage.
+  // NOTE: tcmalloc.cc depends on the value of kMagicDeletedByte
+  //       to work around a bug in the pthread library.
+  static const int kMagicDeletedByte = 0xCD;
+  // A size_t (type of alloc_type_ below) in a deallocated storage
+  // filled with kMagicDeletedByte.
+  static const size_t kMagicDeletedSizeT =
+      0xCDCDCDCD | (((size_t)0xCDCDCDCD << 16) << 16);
+    // Initializer works for 32 and 64 bit size_ts;
+    // "<< 16 << 16" is to fool gcc from issuing a warning
+    // when size_ts are 32 bits.
+
+  // NOTE: on Linux, you can enable malloc debugging support in libc by
+  // setting the environment variable MALLOC_CHECK_ to 1 before you
+  // start the program (see man malloc).
+
+  // We use either do_malloc or mmap to make the actual allocation. In
+  // order to remember which one of the two was used for any block, we store an
+  // appropriate magic word next to the block.
+  static const size_t kMagicMalloc = 0xDEADBEEF;
+  static const size_t kMagicMMap = 0xABCDEFAB;
+
+  // This array will be filled with 0xCD, for use with memcmp.
+  static unsigned char kMagicDeletedBuffer[1024];
+  static pthread_once_t deleted_buffer_initialized_;
+  static bool deleted_buffer_initialized_no_pthreads_;
+
+ private:  // data layout
+
+                    // The four fields size1_,offset_,magic1_,alloc_type_
+                    // should together occupy a multiple of 16 bytes. (At the
+                    // moment, sizeof(size_t) == 4 or 8 depending on piii vs
+                    // k8, and 4 of those sum to 16 or 32 bytes).
+                    // This, combined with do_malloc's alignment guarantees,
+                    // ensures that SSE types can be stored into the returned
+                    // block, at &size2_.
+  size_t size1_;
+  size_t offset_;   // normally 0 unless memaligned memory
+                    // see comments in memalign() and FromRawPointer().
+  size_t magic1_;
+  size_t alloc_type_;
+  // here comes the actual data (variable length)
+  // ...
+  // then come the size2_ and magic2_, or a full page of mprotect-ed memory
+  // if the malloc_page_fence feature is enabled.
+  size_t size2_;
+  size_t magic2_;
+
+ private:  // static data and helpers
+
+  // Allocation map: stores the allocation type for each allocated object,
+  // or the type or'ed with kDeallocatedTypeBit
+  // for each formerly allocated object.
+  typedef AddressMap AllocMap;
+  static AllocMap* alloc_map_;
+  // This protects alloc_map_ and consistent state of metadata
+  // for each still-allocated object in it.
+  // We use spin locks instead of pthread_mutex_t locks
+  // to prevent crashes via calls to pthread_mutex_(un)lock
+  // for the (de)allocations coming from pthreads initialization itself.
+  static SpinLock alloc_map_lock_;
+
+  // A queue of freed blocks.  Instead of releasing blocks to the allocator
+  // immediately, we put them in a queue, freeing them only when necessary
+  // to keep the total size of all the freed blocks below the limit set by
+  // FLAGS_max_free_queue_size.
+  static FreeQueue* free_queue_;
+
+  static size_t free_queue_size_;  // total size of blocks in free_queue_
+  // protects free_queue_ and free_queue_size_
+  static SpinLock free_queue_lock_;
+
+  // Names of allocation types (kMallocType, kNewType, kArrayNewType)
+  static const char* const kAllocName[];
+  // Names of corresponding deallocation types
+  static const char* const kDeallocName[];
+
+  static const char* AllocName(int type) {
+    return kAllocName[type & kAllocTypeMask];
+  }
+
+  static const char* DeallocName(int type) {
+    return kDeallocName[type & kAllocTypeMask];
+  }
+
+ private:  // helper accessors
+
+  bool IsMMapped() const { return kMagicMMap == magic1_; }
+
+  bool IsValidMagicValue(size_t value) const {
+    return kMagicMMap == value  ||  kMagicMalloc == value;
+  }
+
+  static size_t real_malloced_size(size_t size) {
+    return size + sizeof(MallocBlock);
+  }
+
+  /*
+   * Here we assume size of page is kMinAlign aligned,
+   * so if size is MALLOC_ALIGNMENT aligned too, then we could
+   * guarantee return address is also kMinAlign aligned, because
+   * mmap return address at nearby page boundary on Linux.
+   */
+  static size_t real_mmapped_size(size_t size) {
+    size_t tmp = size + MallocBlock::data_offset();
+    tmp = RoundUp(tmp, kMinAlign);
+    return tmp;
+  }
+
+  size_t real_size() {
+    return IsMMapped() ? real_mmapped_size(size1_) : real_malloced_size(size1_);
+  }
+
+  // NOTE: if the block is mmapped (that is, we're using the
+  // malloc_page_fence option) then there's no size2 or magic2
+  // (instead, the guard page begins where size2 would be).
+
+  size_t* size2_addr() { return (size_t*)((char*)&size2_ + size1_); }
+  const size_t* size2_addr() const {
+    return (const size_t*)((char*)&size2_ + size1_);
+  }
+
+  size_t* magic2_addr() { return (size_t*)(size2_addr() + 1); }
+  const size_t* magic2_addr() const { return (const size_t*)(size2_addr() + 1); }
+
+ private:  // other helpers
+
+  void Initialize(size_t size, int type) {
+    RAW_CHECK(IsValidMagicValue(magic1_), "");
+    // record us as allocated in the map
+    alloc_map_lock_.Lock();
+    if (!alloc_map_) {
+      void* p = do_malloc(sizeof(AllocMap));
+      alloc_map_ = new(p) AllocMap(do_malloc, do_free);
+    }
+    alloc_map_->Insert(data_addr(), type);
+    // initialize us
+    size1_ = size;
+    offset_ = 0;
+    alloc_type_ = type;
+    if (!IsMMapped()) {
+      bit_store(magic2_addr(), &magic1_);
+      bit_store(size2_addr(), &size);
+    }
+    alloc_map_lock_.Unlock();
+    memset(data_addr(), kMagicUninitializedByte, size);
+    if (!IsMMapped()) {
+      RAW_CHECK(memcmp(&size1_, size2_addr(), sizeof(size1_)) == 0, "should hold");
+      RAW_CHECK(memcmp(&magic1_, magic2_addr(), sizeof(magic1_)) == 0, "should hold");
+    }
+  }
+
+  size_t CheckAndClear(int type, size_t given_size) {
+    alloc_map_lock_.Lock();
+    CheckLocked(type);
+    if (!IsMMapped()) {
+      RAW_CHECK(memcmp(&size1_, size2_addr(), sizeof(size1_)) == 0, "should hold");
+    }
+    // record us as deallocated in the map
+    alloc_map_->Insert(data_addr(), type | kDeallocatedTypeBit);
+    alloc_map_lock_.Unlock();
+    // clear us
+    const size_t size = real_size();
+    RAW_CHECK(!given_size || given_size == size1_,
+              "right size must be passed to sized delete");
+    memset(this, kMagicDeletedByte, size);
+    return size;
+  }
+
+  void CheckLocked(int type) const {
+    int map_type = 0;
+    const int* found_type =
+      alloc_map_ != NULL ? alloc_map_->Find(data_addr()) : NULL;
+    if (found_type == NULL) {
+      RAW_LOG(FATAL, "memory allocation bug: object at %p "
+                     "has never been allocated", data_addr());
+    } else {
+      map_type = *found_type;
+    }
+    if ((map_type & kDeallocatedTypeBit) != 0) {
+      RAW_LOG(FATAL, "memory allocation bug: object at %p "
+                     "has been already deallocated (it was allocated with %s)",
+                     data_addr(), AllocName(map_type & ~kDeallocatedTypeBit));
+    }
+    if (alloc_type_ == kMagicDeletedSizeT) {
+      RAW_LOG(FATAL, "memory stomping bug: a word before object at %p "
+                     "has been corrupted; or else the object has been already "
+                     "deallocated and our memory map has been corrupted",
+                     data_addr());
+    }
+    if (!IsValidMagicValue(magic1_)) {
+      RAW_LOG(FATAL, "memory stomping bug: a word before object at %p "
+                     "has been corrupted; "
+                     "or else our memory map has been corrupted and this is a "
+                     "deallocation for not (currently) heap-allocated object",
+                     data_addr());
+    }
+    if (!IsMMapped()) {
+      if (memcmp(&size1_, size2_addr(), sizeof(size1_))) {
+        RAW_LOG(FATAL, "memory stomping bug: a word after object at %p "
+                       "has been corrupted", data_addr());
+      }
+      size_t addr;
+      bit_store(&addr, magic2_addr());
+      if (!IsValidMagicValue(addr)) {
+        RAW_LOG(FATAL, "memory stomping bug: a word after object at %p "
+                "has been corrupted", data_addr());
+      }
+    }
+    if (alloc_type_ != type) {
+      if ((alloc_type_ != MallocBlock::kMallocType) &&
+          (alloc_type_ != MallocBlock::kNewType)    &&
+          (alloc_type_ != MallocBlock::kArrayNewType)) {
+        RAW_LOG(FATAL, "memory stomping bug: a word before object at %p "
+                       "has been corrupted", data_addr());
+      }
+      RAW_LOG(FATAL, "memory allocation/deallocation mismatch at %p: "
+                     "allocated with %s being deallocated with %s",
+                     data_addr(), AllocName(alloc_type_), DeallocName(type));
+    }
+    if (alloc_type_ != map_type) {
+      RAW_LOG(FATAL, "memory stomping bug: our memory map has been corrupted : "
+                     "allocation at %p made with %s "
+                     "is recorded in the map to be made with %s",
+                     data_addr(), AllocName(alloc_type_),  AllocName(map_type));
+    }
+  }
+
+ public:  // public accessors
+
+  void* data_addr() { return (void*)&size2_; }
+  const void* data_addr() const { return (const void*)&size2_; }
+
+  static size_t data_offset() { return OFFSETOF_MEMBER(MallocBlock, size2_); }
+
+  size_t data_size() const { return size1_; }
+
+  void set_offset(int offset) { this->offset_ = offset; }
+
+ public:  // our main interface
+
+  static MallocBlock* Allocate(size_t size, int type) {
+    // Prevent an integer overflow / crash with large allocation sizes.
+    // TODO - Note that for a e.g. 64-bit size_t, max_size_t may not actually
+    // be the maximum value, depending on how the compiler treats ~0. The worst
+    // practical effect is that allocations are limited to 4Gb or so, even if
+    // the address space could take more.
+    static size_t max_size_t = ~0;
+    if (size > max_size_t - sizeof(MallocBlock)) {
+      RAW_LOG(ERROR, "Massive size passed to malloc: %zu", size);
+      return NULL;
+    }
+    MallocBlock* b = NULL;
+    const bool use_malloc_page_fence = FLAGS_malloc_page_fence;
+#ifdef HAVE_MMAP
+    if (use_malloc_page_fence) {
+      // Put the block towards the end of the page and make the next page
+      // inaccessible. This will catch buffer overrun right when it happens.
+      size_t sz = real_mmapped_size(size);
+      int pagesize = getpagesize();
+      int num_pages = (sz + pagesize - 1) / pagesize + 1;
+      char* p = (char*) mmap(NULL, num_pages * pagesize, PROT_READ|PROT_WRITE,
+                             MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+      if (p == MAP_FAILED) {
+        // If the allocation fails, abort rather than returning NULL to
+        // malloc. This is because in most cases, the program will run out
+        // of memory in this mode due to tremendous amount of wastage. There
+        // is no point in propagating the error elsewhere.
+        RAW_LOG(FATAL, "Out of memory: possibly due to page fence overhead: %s",
+                strerror(errno));
+      }
+      // Mark the page after the block inaccessible
+      if (mprotect(p + (num_pages - 1) * pagesize, pagesize, PROT_NONE)) {
+        RAW_LOG(FATAL, "Guard page setup failed: %s", strerror(errno));
+      }
+      b = (MallocBlock*) (p + (num_pages - 1) * pagesize - sz);
+    } else {
+      b = (MallocBlock*) do_malloc(real_malloced_size(size));
+    }
+#else
+    b = (MallocBlock*) do_malloc(real_malloced_size(size));
+#endif
+
+    // It would be nice to output a diagnostic on allocation failure
+    // here, but logging (other than FATAL) requires allocating
+    // memory, which could trigger a nasty recursion. Instead, preserve
+    // malloc semantics and return NULL on failure.
+    if (b != NULL) {
+      b->magic1_ = use_malloc_page_fence ? kMagicMMap : kMagicMalloc;
+      b->Initialize(size, type);
+    }
+    return b;
+  }
+
+  void Deallocate(int type, size_t given_size) {
+    if (IsMMapped()) {  // have to do this before CheckAndClear
+#ifdef HAVE_MMAP
+      int size = CheckAndClear(type, given_size);
+      int pagesize = getpagesize();
+      int num_pages = (size + pagesize - 1) / pagesize + 1;
+      char* p = (char*) this;
+      if (FLAGS_malloc_page_fence_never_reclaim  ||
+          !FLAGS_malloc_reclaim_memory) {
+        mprotect(p - (num_pages - 1) * pagesize + size,
+                 num_pages * pagesize, PROT_NONE);
+      } else {
+        munmap(p - (num_pages - 1) * pagesize + size, num_pages * pagesize);
+      }
+#endif
+    } else {
+      const size_t size = CheckAndClear(type, given_size);
+      if (FLAGS_malloc_reclaim_memory) {
+        // Instead of freeing the block immediately, push it onto a queue of
+        // recently freed blocks.  Free only enough blocks to keep from
+        // exceeding the capacity of the queue or causing the total amount of
+        // un-released memory in the queue from exceeding
+        // FLAGS_max_free_queue_size.
+        ProcessFreeQueue(this, size, FLAGS_max_free_queue_size);
+      }
+    }
+  }
+
+  static size_t FreeQueueSize() {
+    SpinLockHolder l(&free_queue_lock_);
+    return free_queue_size_;
+  }
+
+  static void ProcessFreeQueue(MallocBlock* b, size_t size,
+                               int max_free_queue_size) {
+    // MallocBlockQueueEntry are about 144 in size, so we can only
+    // use a small array of them on the stack.
+    MallocBlockQueueEntry entries[4];
+    int num_entries = 0;
+    MallocBlockQueueEntry new_entry(b, size);
+    free_queue_lock_.Lock();
+    if (free_queue_ == NULL)
+      free_queue_ = new FreeQueue;
+    RAW_CHECK(!free_queue_->Full(), "Free queue mustn't be full!");
+
+    if (b != NULL) {
+      free_queue_size_ += size + sizeof(MallocBlockQueueEntry);
+      free_queue_->Push(new_entry);
+    }
+
+    // Free blocks until the total size of unfreed blocks no longer exceeds
+    // max_free_queue_size, and the free queue has at least one free
+    // space in it.
+    while (free_queue_size_ > max_free_queue_size || free_queue_->Full()) {
+      RAW_CHECK(num_entries < arraysize(entries), "entries array overflow");
+      entries[num_entries] = free_queue_->Pop();
+      free_queue_size_ -=
+          entries[num_entries].size + sizeof(MallocBlockQueueEntry);
+      num_entries++;
+      if (num_entries == arraysize(entries)) {
+        // The queue will not be full at this point, so it is ok to
+        // release the lock.  The queue may still contain more than
+        // max_free_queue_size, but this is not a strict invariant.
+        free_queue_lock_.Unlock();
+        for (int i = 0; i < num_entries; i++) {
+          CheckForDanglingWrites(entries[i]);
+          do_free(entries[i].block);
+        }
+        num_entries = 0;
+        free_queue_lock_.Lock();
+      }
+    }
+    free_queue_lock_.Unlock();
+    for (int i = 0; i < num_entries; i++) {
+      CheckForDanglingWrites(entries[i]);
+      do_free(entries[i].block);
+    }
+  }
+
+  static void InitDeletedBuffer() {
+    memset(kMagicDeletedBuffer, kMagicDeletedByte, sizeof(kMagicDeletedBuffer));
+    deleted_buffer_initialized_no_pthreads_ = true;
+  }
+
+  static void CheckForDanglingWrites(const MallocBlockQueueEntry& queue_entry) {
+    // Initialize the buffer if necessary.
+    if (pthread_once)
+      pthread_once(&deleted_buffer_initialized_, &InitDeletedBuffer);
+    if (!deleted_buffer_initialized_no_pthreads_) {
+      // This will be the case on systems that don't link in pthreads,
+      // including on FreeBSD where pthread_once has a non-zero address
+      // (but doesn't do anything) even when pthreads isn't linked in.
+      InitDeletedBuffer();
+    }
+
+    const unsigned char* p =
+        reinterpret_cast(queue_entry.block);
+
+    static const size_t size_of_buffer = sizeof(kMagicDeletedBuffer);
+    const size_t size = queue_entry.size;
+    const size_t buffers = size / size_of_buffer;
+    const size_t remainder = size % size_of_buffer;
+    size_t buffer_idx;
+    for (buffer_idx = 0; buffer_idx < buffers; ++buffer_idx) {
+      CheckForCorruptedBuffer(queue_entry, buffer_idx, p, size_of_buffer);
+      p += size_of_buffer;
+    }
+    CheckForCorruptedBuffer(queue_entry, buffer_idx, p, remainder);
+  }
+
+  static void CheckForCorruptedBuffer(const MallocBlockQueueEntry& queue_entry,
+                                      size_t buffer_idx,
+                                      const unsigned char* buffer,
+                                      size_t size_of_buffer) {
+    if (memcmp(buffer, kMagicDeletedBuffer, size_of_buffer) == 0) {
+      return;
+    }
+
+    RAW_LOG(ERROR,
+            "Found a corrupted memory buffer in MallocBlock (may be offset "
+            "from user ptr): buffer index: %zd, buffer ptr: %p, size of "
+            "buffer: %zd", buffer_idx, buffer, size_of_buffer);
+
+    // The magic deleted buffer should only be 1024 bytes, but in case
+    // this changes, let's put an upper limit on the number of debug
+    // lines we'll output:
+    if (size_of_buffer <= 1024) {
+      for (int i = 0; i < size_of_buffer; ++i) {
+        if (buffer[i] != kMagicDeletedByte) {
+          RAW_LOG(ERROR, "Buffer byte %d is 0x%02x (should be 0x%02x).",
+                  i, buffer[i], kMagicDeletedByte);
+        }
+      }
+    } else {
+      RAW_LOG(ERROR, "Buffer too large to print corruption.");
+    }
+
+    const MallocBlock* b = queue_entry.block;
+    const size_t size = queue_entry.size;
+    if (queue_entry.num_deleter_pcs > 0) {
+      TracePrintf(STDERR_FILENO, "Deleted by thread %p\n",
+                  reinterpret_cast(
+                      PRINTABLE_PTHREAD(queue_entry.deleter_threadid)));
+
+      // We don't want to allocate or deallocate memory here, so we use
+      // placement-new.  It's ok that we don't destroy this, since we're
+      // just going to error-exit below anyway.  Union is for alignment.
+      union { void* alignment; char buf[sizeof(SymbolTable)]; } tablebuf;
+      SymbolTable* symbolization_table = new (tablebuf.buf) SymbolTable;
+      for (int i = 0; i < queue_entry.num_deleter_pcs; i++) {
+        // Symbolizes the previous address of pc because pc may be in the
+        // next function.  This may happen when the function ends with
+        // a call to a function annotated noreturn (e.g. CHECK).
+        char *pc = reinterpret_cast(queue_entry.deleter_pcs[i]);
+        symbolization_table->Add(pc - 1);
+      }
+      if (FLAGS_symbolize_stacktrace)
+        symbolization_table->Symbolize();
+      for (int i = 0; i < queue_entry.num_deleter_pcs; i++) {
+        char *pc = reinterpret_cast(queue_entry.deleter_pcs[i]);
+        TracePrintf(STDERR_FILENO, "    @ %p %s\n",
+                    pc, symbolization_table->GetSymbol(pc - 1));
+      }
+    } else {
+      RAW_LOG(ERROR,
+              "Skipping the printing of the deleter's stack!  Its stack was "
+              "not found; either the corruption occurred too early in "
+              "execution to obtain a stack trace or --max_free_queue_size was "
+              "set to 0.");
+    }
+
+    RAW_LOG(FATAL,
+            "Memory was written to after being freed.  MallocBlock: %p, user "
+            "ptr: %p, size: %zd.  If you can't find the source of the error, "
+            "try using ASan (http://code.google.com/p/address-sanitizer/), "
+            "Valgrind, or Purify, or study the "
+            "output of the deleter's stack printed above.",
+            b, b->data_addr(), size);
+  }
+
+  static MallocBlock* FromRawPointer(void* p) {
+    const size_t data_offset = MallocBlock::data_offset();
+    // Find the header just before client's memory.
+    MallocBlock *mb = reinterpret_cast(
+                reinterpret_cast(p) - data_offset);
+    // If mb->alloc_type_ is kMagicDeletedSizeT, we're not an ok pointer.
+    if (mb->alloc_type_ == kMagicDeletedSizeT) {
+      RAW_LOG(FATAL, "memory allocation bug: object at %p has been already"
+                     " deallocated; or else a word before the object has been"
+                     " corrupted (memory stomping bug)", p);
+    }
+    // If mb->offset_ is zero (common case), mb is the real header.
+    // If mb->offset_ is non-zero, this block was allocated by debug
+    // memallign implementation, and mb->offset_ is the distance
+    // backwards to the real header from mb, which is a fake header.
+    if (mb->offset_ == 0) {
+      return mb;
+    }
+
+    MallocBlock *main_block = reinterpret_cast(
+      reinterpret_cast(mb) - mb->offset_);
+
+    if (main_block->offset_ != 0) {
+      RAW_LOG(FATAL, "memory corruption bug: offset_ field is corrupted."
+              " Need 0 but got %x",
+              (unsigned)(main_block->offset_));
+    }
+    if (main_block >= p) {
+      RAW_LOG(FATAL, "memory corruption bug: offset_ field is corrupted."
+              " Detected main_block address overflow: %x",
+              (unsigned)(mb->offset_));
+    }
+    if (main_block->size2_addr() < p) {
+      RAW_LOG(FATAL, "memory corruption bug: offset_ field is corrupted."
+              " It points below it's own main_block: %x",
+              (unsigned)(mb->offset_));
+    }
+
+    return main_block;
+  }
+
+  static const MallocBlock* FromRawPointer(const void* p) {
+    // const-safe version: we just cast about
+    return FromRawPointer(const_cast(p));
+  }
+
+  void Check(int type) const {
+    alloc_map_lock_.Lock();
+    CheckLocked(type);
+    alloc_map_lock_.Unlock();
+  }
+
+  static bool CheckEverything() {
+    alloc_map_lock_.Lock();
+    if (alloc_map_ != NULL)  alloc_map_->Iterate(CheckCallback, 0);
+    alloc_map_lock_.Unlock();
+    return true;  // if we get here, we're okay
+  }
+
+  static bool MemoryStats(int* blocks, size_t* total,
+                          int histogram[kMallocHistogramSize]) {
+    memset(histogram, 0, kMallocHistogramSize * sizeof(int));
+    alloc_map_lock_.Lock();
+    stats_blocks_ = 0;
+    stats_total_ = 0;
+    stats_histogram_ = histogram;
+    if (alloc_map_ != NULL) alloc_map_->Iterate(StatsCallback, 0);
+    *blocks = stats_blocks_;
+    *total = stats_total_;
+    alloc_map_lock_.Unlock();
+    return true;
+  }
+
+ private:  // helpers for CheckEverything and MemoryStats
+
+  static void CheckCallback(const void* ptr, int* type, int dummy) {
+    if ((*type & kDeallocatedTypeBit) == 0) {
+      FromRawPointer(ptr)->CheckLocked(*type);
+    }
+  }
+
+  // Accumulation variables for StatsCallback protected by alloc_map_lock_
+  static int stats_blocks_;
+  static size_t stats_total_;
+  static int* stats_histogram_;
+
+  static void StatsCallback(const void* ptr, int* type, int dummy) {
+    if ((*type & kDeallocatedTypeBit) == 0) {
+      const MallocBlock* b = FromRawPointer(ptr);
+      b->CheckLocked(*type);
+      ++stats_blocks_;
+      size_t mysize = b->size1_;
+      int entry = 0;
+      stats_total_ += mysize;
+      while (mysize) {
+        ++entry;
+        mysize >>= 1;
+      }
+      RAW_CHECK(entry < kMallocHistogramSize,
+                "kMallocHistogramSize should be at least as large as log2 "
+                "of the maximum process memory size");
+      stats_histogram_[entry] += 1;
+    }
+  }
+};
+
+void DanglingWriteChecker() {
+  // Clear out the remaining free queue to check for dangling writes.
+  MallocBlock::ProcessFreeQueue(NULL, 0, 0);
+}
+
+// ========================================================================= //
+
+const size_t MallocBlock::kMagicMalloc;
+const size_t MallocBlock::kMagicMMap;
+
+MallocBlock::AllocMap* MallocBlock::alloc_map_ = NULL;
+SpinLock MallocBlock::alloc_map_lock_(SpinLock::LINKER_INITIALIZED);
+
+FreeQueue* MallocBlock::free_queue_ = NULL;
+size_t MallocBlock::free_queue_size_ = 0;
+SpinLock MallocBlock::free_queue_lock_(SpinLock::LINKER_INITIALIZED);
+
+unsigned char MallocBlock::kMagicDeletedBuffer[1024];
+pthread_once_t MallocBlock::deleted_buffer_initialized_ = PTHREAD_ONCE_INIT;
+bool MallocBlock::deleted_buffer_initialized_no_pthreads_ = false;
+
+const char* const MallocBlock::kAllocName[] = {
+  "malloc",
+  "new",
+  "new []",
+  NULL,
+};
+
+const char* const MallocBlock::kDeallocName[] = {
+  "free",
+  "delete",
+  "delete []",
+  NULL,
+};
+
+int MallocBlock::stats_blocks_;
+size_t MallocBlock::stats_total_;
+int* MallocBlock::stats_histogram_;
+
+// ========================================================================= //
+
+// The following cut-down version of printf() avoids
+// using stdio or ostreams.
+// This is to guarantee no recursive calls into
+// the allocator and to bound the stack space consumed.  (The pthread
+// manager thread in linuxthreads has a very small stack,
+// so fprintf can't be called.)
+static void TracePrintf(int fd, const char *fmt, ...) {
+  char buf[64];
+  int i = 0;
+  va_list ap;
+  va_start(ap, fmt);
+  const char *p = fmt;
+  char numbuf[25];
+  if (fd < 0) {
+    va_end(ap);
+    return;
+  }
+  numbuf[sizeof(numbuf)-1] = 0;
+  while (*p != '\0') {              // until end of format string
+    char *s = &numbuf[sizeof(numbuf)-1];
+    if (p[0] == '%' && p[1] != 0) {  // handle % formats
+      int64 l = 0;
+      unsigned long base = 0;
+      if (*++p == 's') {                            // %s
+        s = va_arg(ap, char *);
+      } else if (*p == 'l' && p[1] == 'd') {        // %ld
+        l = va_arg(ap, long);
+        base = 10;
+        p++;
+      } else if (*p == 'l' && p[1] == 'u') {        // %lu
+        l = va_arg(ap, unsigned long);
+        base = 10;
+        p++;
+      } else if (*p == 'z' && p[1] == 'u') {        // %zu
+        l = va_arg(ap, size_t);
+        base = 10;
+        p++;
+      } else if (*p == 'u') {                       // %u
+        l = va_arg(ap, unsigned int);
+        base = 10;
+      } else if (*p == 'd') {                       // %d
+        l = va_arg(ap, int);
+        base = 10;
+      } else if (*p == 'p') {                       // %p
+        l = va_arg(ap, intptr_t);
+        base = 16;
+      } else {
+        write(STDERR_FILENO, "Unimplemented TracePrintf format\n", 33);
+        write(STDERR_FILENO, p, 2);
+        write(STDERR_FILENO, "\n", 1);
+        abort();
+      }
+      p++;
+      if (base != 0) {
+        bool minus = (l < 0 && base == 10);
+        uint64 ul = minus? -l : l;
+        do {
+          *--s = "0123456789abcdef"[ul % base];
+          ul /= base;
+        } while (ul != 0);
+        if (base == 16) {
+          *--s = 'x';
+          *--s = '0';
+        } else if (minus) {
+          *--s = '-';
+        }
+      }
+    } else {                        // handle normal characters
+      *--s = *p++;
+    }
+    while (*s != 0) {
+      if (i == sizeof(buf)) {
+        write(fd, buf, i);
+        i = 0;
+      }
+      buf[i++] = *s++;
+    }
+  }
+  if (i != 0) {
+    write(fd, buf, i);
+  }
+  va_end(ap);
+}
+
+// Return the file descriptor we're writing a log to
+static int TraceFd() {
+  static int trace_fd = -1;
+  if (trace_fd == -1) {            // Open the trace file on the first call
+    const char *val = getenv("TCMALLOC_TRACE_FILE");
+    bool fallback_to_stderr = false;
+    if (!val) {
+      val = "/tmp/google.alloc";
+      fallback_to_stderr = true;
+    }
+    trace_fd = open(val, O_CREAT|O_TRUNC|O_WRONLY, 0666);
+    if (trace_fd == -1) {
+      if (fallback_to_stderr) {
+        trace_fd = 2;
+        TracePrintf(trace_fd, "Can't open %s.  Logging to stderr.\n", val);
+      } else {
+        TracePrintf(2, "Can't open %s.  Logging disabled.\n", val);
+      }
+    }
+    // Add a header to the log.
+    TracePrintf(trace_fd, "Trace started: %lu\n",
+                static_cast(time(NULL)));
+    TracePrintf(trace_fd,
+                "func\tsize\tptr\tthread_id\tstack pcs for tools/symbolize\n");
+  }
+  return trace_fd;
+}
+
+// Print the hex stack dump on a single line.   PCs are separated by tabs.
+static void TraceStack(void) {
+  void *pcs[16];
+  int n = GetStackTrace(pcs, sizeof(pcs)/sizeof(pcs[0]), 0);
+  for (int i = 0; i != n; i++) {
+    TracePrintf(TraceFd(), "\t%p", pcs[i]);
+  }
+}
+
+// This protects MALLOC_TRACE, to make sure its info is atomically written.
+static SpinLock malloc_trace_lock(SpinLock::LINKER_INITIALIZED);
+
+#define MALLOC_TRACE(name, size, addr)                                  \
+  do {                                                                  \
+    if (FLAGS_malloctrace) {                                            \
+      SpinLockHolder l(&malloc_trace_lock);                             \
+      TracePrintf(TraceFd(), "%s\t%zu\t%p\t%" GPRIuPTHREAD,      \
+                  name, size, addr, PRINTABLE_PTHREAD(pthread_self())); \
+      TraceStack();                                                     \
+      TracePrintf(TraceFd(), "\n");                                     \
+    }                                                                   \
+  } while (0)
+
+// ========================================================================= //
+
+// Write the characters buf[0, ..., size-1] to
+// the malloc trace buffer.
+// This function is intended for debugging,
+// and is not declared in any header file.
+// You must insert a declaration of it by hand when you need
+// to use it.
+void __malloctrace_write(const char *buf, size_t size) {
+  if (FLAGS_malloctrace) {
+    write(TraceFd(), buf, size);
+  }
+}
+
+// ========================================================================= //
+
+// General debug allocation/deallocation
+
+static inline void* DebugAllocate(size_t size, int type) {
+  MallocBlock* ptr = MallocBlock::Allocate(size, type);
+  if (ptr == NULL)  return NULL;
+  MALLOC_TRACE("malloc", size, ptr->data_addr());
+  return ptr->data_addr();
+}
+
+static inline void DebugDeallocate(void* ptr, int type, size_t given_size) {
+  MALLOC_TRACE("free",
+               (ptr != 0 ? MallocBlock::FromRawPointer(ptr)->data_size() : 0),
+               ptr);
+  if (ptr)  MallocBlock::FromRawPointer(ptr)->Deallocate(type, given_size);
+}
+
+// ========================================================================= //
+
+// The following functions may be called via MallocExtension::instance()
+// for memory verification and statistics.
+class DebugMallocImplementation : public TCMallocImplementation {
+ public:
+  virtual bool GetNumericProperty(const char* name, size_t* value) {
+    bool result = TCMallocImplementation::GetNumericProperty(name, value);
+    if (result && (strcmp(name, "generic.current_allocated_bytes") == 0)) {
+      // Subtract bytes kept in the free queue
+      size_t qsize = MallocBlock::FreeQueueSize();
+      if (*value >= qsize) {
+        *value -= qsize;
+      }
+    }
+    return result;
+  }
+
+  virtual bool VerifyNewMemory(const void* p) {
+    if (p)  MallocBlock::FromRawPointer(p)->Check(MallocBlock::kNewType);
+    return true;
+  }
+
+  virtual bool VerifyArrayNewMemory(const void* p) {
+    if (p)  MallocBlock::FromRawPointer(p)->Check(MallocBlock::kArrayNewType);
+    return true;
+  }
+
+  virtual bool VerifyMallocMemory(const void* p) {
+    if (p)  MallocBlock::FromRawPointer(p)->Check(MallocBlock::kMallocType);
+    return true;
+  }
+
+  virtual bool VerifyAllMemory() {
+    return MallocBlock::CheckEverything();
+  }
+
+  virtual bool MallocMemoryStats(int* blocks, size_t* total,
+                                 int histogram[kMallocHistogramSize]) {
+    return MallocBlock::MemoryStats(blocks, total, histogram);
+  }
+
+  virtual size_t GetEstimatedAllocatedSize(size_t size) {
+    return size;
+  }
+
+  virtual size_t GetAllocatedSize(const void* p) {
+    if (p) {
+      RAW_CHECK(GetOwnership(p) != MallocExtension::kNotOwned,
+                "ptr not allocated by tcmalloc");
+      return MallocBlock::FromRawPointer(p)->data_size();
+    }
+    return 0;
+  }
+
+  virtual MallocExtension::Ownership GetOwnership(const void* p) {
+    if (!p) {
+      // nobody owns NULL
+      return MallocExtension::kNotOwned;
+    }
+
+    // FIXME: note that correct GetOwnership should not touch memory
+    // that is not owned by tcmalloc. Main implementation is using
+    // pagemap to discover if page in question is owned by us or
+    // not. But pagemap only has marks for first and last page of
+    // spans.  Note that if p was returned out of our memalign with
+    // big alignment, then it will point outside of marked pages. Also
+    // note that FromRawPointer call below requires touching memory
+    // before pointer in order to handle memalign-ed chunks
+    // (offset_). This leaves us with two options:
+    //
+    // * do FromRawPointer first and have possibility of crashing if
+    //   we're given not owned pointer
+    //
+    // * return incorrect ownership for those large memalign chunks
+    //
+    // I've decided to choose later, which appears to happen rarer and
+    // therefore is arguably a lesser evil
+
+    MallocExtension::Ownership rv = TCMallocImplementation::GetOwnership(p);
+    if (rv != MallocExtension::kOwned) {
+      return rv;
+    }
+
+    const MallocBlock* mb = MallocBlock::FromRawPointer(p);
+    return TCMallocImplementation::GetOwnership(mb);
+  }
+
+  virtual void GetFreeListSizes(vector* v) {
+    static const char* kDebugFreeQueue = "debug.free_queue";
+
+    TCMallocImplementation::GetFreeListSizes(v);
+
+    MallocExtension::FreeListInfo i;
+    i.type = kDebugFreeQueue;
+    i.min_object_size = 0;
+    i.max_object_size = numeric_limits::max();
+    i.total_bytes_free = MallocBlock::FreeQueueSize();
+    v->push_back(i);
+  }
+
+ };
+
+static union {
+  char chars[sizeof(DebugMallocImplementation)];
+  void *ptr;
+} debug_malloc_implementation_space;
+
+REGISTER_MODULE_INITIALIZER(debugallocation, {
+#if (__cplusplus >= 201103L)
+    static_assert(alignof(decltype(debug_malloc_implementation_space)) >= alignof(DebugMallocImplementation),
+                  "DebugMallocImplementation is expected to need just word alignment");
+#endif
+  // Either we or valgrind will control memory management.  We
+  // register our extension if we're the winner. Otherwise let
+  // Valgrind use its own malloc (so don't register our extension).
+  if (!RunningOnValgrind()) {
+    DebugMallocImplementation *impl = new (debug_malloc_implementation_space.chars) DebugMallocImplementation();
+    MallocExtension::Register(impl);
+  }
+});
+
+REGISTER_MODULE_DESTRUCTOR(debugallocation, {
+  if (!RunningOnValgrind()) {
+    // When the program exits, check all blocks still in the free
+    // queue for corruption.
+    DanglingWriteChecker();
+  }
+});
+
+// ========================================================================= //
+
+struct debug_alloc_retry_data {
+  size_t size;
+  int new_type;
+};
+
+static void *retry_debug_allocate(void *arg) {
+  debug_alloc_retry_data *data = static_cast(arg);
+  return DebugAllocate(data->size, data->new_type);
+}
+
+// This is mostly the same a cpp_alloc in tcmalloc.cc.
+// TODO(csilvers): change Allocate() above to call cpp_alloc, so we
+// don't have to reproduce the logic here.  To make tc_new_mode work
+// properly, I think we'll need to separate out the logic of throwing
+// from the logic of calling the new-handler.
+inline void* debug_cpp_alloc(size_t size, int new_type, bool nothrow) {
+  void* p = DebugAllocate(size, new_type);
+  if (p != NULL) {
+    return p;
+  }
+  struct debug_alloc_retry_data data;
+  data.size = size;
+  data.new_type = new_type;
+  return handle_oom(retry_debug_allocate, &data,
+                    true, nothrow);
+}
+
+inline void* do_debug_malloc_or_debug_cpp_alloc(size_t size) {
+  void* p = DebugAllocate(size, MallocBlock::kMallocType);
+  if (p != NULL) {
+    return p;
+  }
+  struct debug_alloc_retry_data data;
+  data.size = size;
+  data.new_type = MallocBlock::kMallocType;
+  return handle_oom(retry_debug_allocate, &data,
+                    false, true);
+}
+
+// Exported routines
+
+// frame forcer and force_frame exist only to prevent tail calls to
+// DebugDeallocate to be actually implemented as tail calls. This is
+// important because stack trace capturing in MallocBlockQueueEntry
+// relies on google_malloc section being on stack and tc_XXX functions
+// are in that section. So they must not jump to DebugDeallocate but
+// have to do call. frame_forcer call at the end of such functions
+// prevents tail calls to DebugDeallocate.
+static int frame_forcer;
+static void force_frame() {
+  int dummy = *(int volatile *)&frame_forcer;
+  (void)dummy;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) PERFTOOLS_NOTHROW {
+  if (ThreadCache::IsUseEmergencyMalloc()) {
+    return tcmalloc::EmergencyMalloc(size);
+  }
+  void* ptr = do_debug_malloc_or_debug_cpp_alloc(size);
+  MallocHook::InvokeNewHook(ptr, size);
+  return ptr;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_free(void* ptr) PERFTOOLS_NOTHROW {
+  if (tcmalloc::IsEmergencyPtr(ptr)) {
+    return tcmalloc::EmergencyFree(ptr);
+  }
+  MallocHook::InvokeDeleteHook(ptr);
+  DebugDeallocate(ptr, MallocBlock::kMallocType, 0);
+  force_frame();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_free_sized(void *ptr, size_t size) PERFTOOLS_NOTHROW {
+  MallocHook::InvokeDeleteHook(ptr);
+  DebugDeallocate(ptr, MallocBlock::kMallocType, size);
+  force_frame();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_calloc(size_t count, size_t size) PERFTOOLS_NOTHROW {
+  if (ThreadCache::IsUseEmergencyMalloc()) {
+    return tcmalloc::EmergencyCalloc(count, size);
+  }
+  // Overflow check
+  const size_t total_size = count * size;
+  if (size != 0 && total_size / size != count) return NULL;
+
+  void* block = do_debug_malloc_or_debug_cpp_alloc(total_size);
+  MallocHook::InvokeNewHook(block, total_size);
+  if (block)  memset(block, 0, total_size);
+  return block;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) PERFTOOLS_NOTHROW {
+  if (tcmalloc::IsEmergencyPtr(ptr)) {
+    return tcmalloc::EmergencyFree(ptr);
+  }
+  MallocHook::InvokeDeleteHook(ptr);
+  DebugDeallocate(ptr, MallocBlock::kMallocType, 0);
+  force_frame();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_realloc(void* ptr, size_t size) PERFTOOLS_NOTHROW {
+  if (tcmalloc::IsEmergencyPtr(ptr)) {
+    return tcmalloc::EmergencyRealloc(ptr, size);
+  }
+  if (ptr == NULL) {
+    ptr = do_debug_malloc_or_debug_cpp_alloc(size);
+    MallocHook::InvokeNewHook(ptr, size);
+    return ptr;
+  }
+  if (size == 0) {
+    MallocHook::InvokeDeleteHook(ptr);
+    DebugDeallocate(ptr, MallocBlock::kMallocType, 0);
+    return NULL;
+  }
+  MallocBlock* old = MallocBlock::FromRawPointer(ptr);
+  old->Check(MallocBlock::kMallocType);
+  MallocBlock* p = MallocBlock::Allocate(size, MallocBlock::kMallocType);
+
+  // If realloc fails we are to leave the old block untouched and
+  // return null
+  if (p == NULL)  return NULL;
+
+  // if ptr was allocated via memalign, then old->data_size() is not
+  // start of user data. So we must be careful to copy only user-data
+  char *old_begin = (char *)old->data_addr();
+  char *old_end = old_begin + old->data_size();
+
+  ssize_t old_ssize = old_end - (char *)ptr;
+  CHECK_CONDITION(old_ssize >= 0);
+
+  size_t old_size = (size_t)old_ssize;
+  CHECK_CONDITION(old_size <= old->data_size());
+
+  memcpy(p->data_addr(), ptr, (old_size < size) ? old_size : size);
+  MallocHook::InvokeDeleteHook(ptr);
+  MallocHook::InvokeNewHook(p->data_addr(), size);
+  DebugDeallocate(ptr, MallocBlock::kMallocType, 0);
+  MALLOC_TRACE("realloc", p->data_size(), p->data_addr());
+  return p->data_addr();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_new(size_t size) {
+  void* ptr = debug_cpp_alloc(size, MallocBlock::kNewType, false);
+  MallocHook::InvokeNewHook(ptr, size);
+  if (ptr == NULL) {
+    RAW_LOG(FATAL, "Unable to allocate %zu bytes: new failed.", size);
+  }
+  return ptr;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size, const std::nothrow_t&) PERFTOOLS_NOTHROW {
+  void* ptr = debug_cpp_alloc(size, MallocBlock::kNewType, true);
+  MallocHook::InvokeNewHook(ptr, size);
+  return ptr;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete(void* p) PERFTOOLS_NOTHROW {
+  MallocHook::InvokeDeleteHook(p);
+  DebugDeallocate(p, MallocBlock::kNewType, 0);
+  force_frame();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_sized(void* p, size_t size) PERFTOOLS_NOTHROW {
+  MallocHook::InvokeDeleteHook(p);
+  DebugDeallocate(p, MallocBlock::kNewType, size);
+  force_frame();
+}
+
+// Some STL implementations explicitly invoke this.
+// It is completely equivalent to a normal delete (delete never throws).
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p, const std::nothrow_t&) PERFTOOLS_NOTHROW {
+  MallocHook::InvokeDeleteHook(p);
+  DebugDeallocate(p, MallocBlock::kNewType, 0);
+  force_frame();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_newarray(size_t size) {
+  void* ptr = debug_cpp_alloc(size, MallocBlock::kArrayNewType, false);
+  MallocHook::InvokeNewHook(ptr, size);
+  if (ptr == NULL) {
+    RAW_LOG(FATAL, "Unable to allocate %zu bytes: new[] failed.", size);
+  }
+  return ptr;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size, const std::nothrow_t&)
+    PERFTOOLS_NOTHROW {
+  void* ptr = debug_cpp_alloc(size, MallocBlock::kArrayNewType, true);
+  MallocHook::InvokeNewHook(ptr, size);
+  return ptr;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray(void* p) PERFTOOLS_NOTHROW {
+  MallocHook::InvokeDeleteHook(p);
+  DebugDeallocate(p, MallocBlock::kArrayNewType, 0);
+  force_frame();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_sized(void* p, size_t size) PERFTOOLS_NOTHROW {
+  MallocHook::InvokeDeleteHook(p);
+  DebugDeallocate(p, MallocBlock::kArrayNewType, size);
+  force_frame();
+}
+
+// Some STL implementations explicitly invoke this.
+// It is completely equivalent to a normal delete (delete never throws).
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p, const std::nothrow_t&) PERFTOOLS_NOTHROW {
+  MallocHook::InvokeDeleteHook(p);
+  DebugDeallocate(p, MallocBlock::kArrayNewType, 0);
+  force_frame();
+}
+
+// This is mostly the same as do_memalign in tcmalloc.cc.
+static void *do_debug_memalign(size_t alignment, size_t size, int type) {
+  // Allocate >= size bytes aligned on "alignment" boundary
+  // "alignment" is a power of two.
+  void *p = 0;
+  RAW_CHECK((alignment & (alignment-1)) == 0, "must be power of two");
+  const size_t data_offset = MallocBlock::data_offset();
+  // Allocate "alignment-1" extra bytes to ensure alignment is possible, and
+  // a further data_offset bytes for an additional fake header.
+  size_t extra_bytes = data_offset + alignment - 1;
+  if (size + extra_bytes < size) return NULL;         // Overflow
+  p = DebugAllocate(size + extra_bytes, type);
+  if (p != 0) {
+    intptr_t orig_p = reinterpret_cast(p);
+    // Leave data_offset bytes for fake header, and round up to meet
+    // alignment.
+    p = reinterpret_cast(RoundUp(orig_p + data_offset, alignment));
+    // Create a fake header block with an offset_ that points back to the
+    // real header.  FromRawPointer uses this value.
+    MallocBlock *fake_hdr = reinterpret_cast(
+                reinterpret_cast(p) - data_offset);
+    // offset_ is distance between real and fake headers.
+    // p is now end of fake header (beginning of client area),
+    // and orig_p is the end of the real header, so offset_
+    // is their difference.
+    //
+    // Note that other fields of fake_hdr are initialized with
+    // kMagicUninitializedByte
+    fake_hdr->set_offset(reinterpret_cast(p) - orig_p);
+  }
+  return p;
+}
+
+struct memalign_retry_data {
+  size_t align;
+  size_t size;
+  int type;
+};
+
+static void *retry_debug_memalign(void *arg) {
+  memalign_retry_data *data = static_cast(arg);
+  return do_debug_memalign(data->align, data->size, data->type);
+}
+
+ATTRIBUTE_ALWAYS_INLINE
+inline void* do_debug_memalign_or_debug_cpp_memalign(size_t align,
+                                                     size_t size,
+                                                     int type,
+                                                     bool from_operator,
+                                                     bool nothrow) {
+  void* p = do_debug_memalign(align, size, type);
+  if (p != NULL) {
+    return p;
+  }
+
+  struct memalign_retry_data data;
+  data.align = align;
+  data.size = size;
+  data.type = type;
+  return handle_oom(retry_debug_memalign, &data,
+                    from_operator, nothrow);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_memalign(size_t align, size_t size) PERFTOOLS_NOTHROW {
+  void *p = do_debug_memalign_or_debug_cpp_memalign(align, size, MallocBlock::kMallocType, false, true);
+  MallocHook::InvokeNewHook(p, size);
+  return p;
+}
+
+// Implementation taken from tcmalloc/tcmalloc.cc
+extern "C" PERFTOOLS_DLL_DECL int tc_posix_memalign(void** result_ptr, size_t align, size_t size)
+    PERFTOOLS_NOTHROW {
+  if (((align % sizeof(void*)) != 0) ||
+      ((align & (align - 1)) != 0) ||
+      (align == 0)) {
+    return EINVAL;
+  }
+
+  void* result = do_debug_memalign_or_debug_cpp_memalign(align, size, MallocBlock::kMallocType, false, true);
+  MallocHook::InvokeNewHook(result, size);
+  if (result == NULL) {
+    return ENOMEM;
+  } else {
+    *result_ptr = result;
+    return 0;
+  }
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_valloc(size_t size) PERFTOOLS_NOTHROW {
+  // Allocate >= size bytes starting on a page boundary
+  void *p = do_debug_memalign_or_debug_cpp_memalign(getpagesize(), size, MallocBlock::kMallocType, false, true);
+  MallocHook::InvokeNewHook(p, size);
+  return p;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t size) PERFTOOLS_NOTHROW {
+  // Round size up to a multiple of pages
+  // then allocate memory on a page boundary
+  int pagesize = getpagesize();
+  size = RoundUp(size, pagesize);
+  if (size == 0) {     // pvalloc(0) should allocate one page, according to
+    size = pagesize;   // http://man.free4web.biz/man3/libmpatrol.3.html
+  }
+  void *p = do_debug_memalign_or_debug_cpp_memalign(pagesize, size, MallocBlock::kMallocType, false, true);
+  MallocHook::InvokeNewHook(p, size);
+  return p;
+}
+
+#if defined(ENABLE_ALIGNED_NEW_DELETE)
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_new_aligned(size_t size, std::align_val_t align) {
+  void* result = do_debug_memalign_or_debug_cpp_memalign(static_cast(align), size, MallocBlock::kNewType, true, false);
+  MallocHook::InvokeNewHook(result, size);
+  return result;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_new_aligned_nothrow(size_t size, std::align_val_t align, const std::nothrow_t&) PERFTOOLS_NOTHROW {
+  void* result = do_debug_memalign_or_debug_cpp_memalign(static_cast(align), size, MallocBlock::kNewType, true, true);
+  MallocHook::InvokeNewHook(result, size);
+  return result;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_aligned(void* p, std::align_val_t) PERFTOOLS_NOTHROW {
+  tc_delete(p);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_sized_aligned(void* p, size_t size, std::align_val_t align) PERFTOOLS_NOTHROW {
+  // Reproduce actual size calculation done by do_debug_memalign
+  const size_t alignment = static_cast(align);
+  const size_t data_offset = MallocBlock::data_offset();
+  const size_t extra_bytes = data_offset + alignment - 1;
+
+  tc_delete_sized(p, size + extra_bytes);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_aligned_nothrow(void* p, std::align_val_t, const std::nothrow_t&) PERFTOOLS_NOTHROW {
+  tc_delete(p);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_newarray_aligned(size_t size, std::align_val_t align) {
+  void* result = do_debug_memalign_or_debug_cpp_memalign(static_cast(align), size, MallocBlock::kArrayNewType, true, false);
+  MallocHook::InvokeNewHook(result, size);
+  return result;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_newarray_aligned_nothrow(size_t size, std::align_val_t align, const std::nothrow_t& nt) PERFTOOLS_NOTHROW {
+  void* result = do_debug_memalign_or_debug_cpp_memalign(static_cast(align), size, MallocBlock::kArrayNewType, true, true);
+  MallocHook::InvokeNewHook(result, size);
+  return result;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_aligned(void* p, std::align_val_t) PERFTOOLS_NOTHROW {
+  tc_deletearray(p);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_sized_aligned(void* p, size_t size, std::align_val_t align) PERFTOOLS_NOTHROW {
+  // Reproduce actual size calculation done by do_debug_memalign
+  const size_t alignment = static_cast(align);
+  const size_t data_offset = MallocBlock::data_offset();
+  const size_t extra_bytes = data_offset + alignment - 1;
+
+  tc_deletearray_sized(p, size + extra_bytes);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_aligned_nothrow(void* p, std::align_val_t, const std::nothrow_t&) PERFTOOLS_NOTHROW {
+  tc_deletearray(p);
+}
+
+#endif // defined(ENABLE_ALIGNED_NEW_DELETE)
+
+// malloc_stats just falls through to the base implementation.
+extern "C" PERFTOOLS_DLL_DECL void tc_malloc_stats(void) PERFTOOLS_NOTHROW {
+  do_malloc_stats();
+}
+
+extern "C" PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) PERFTOOLS_NOTHROW {
+  return do_mallopt(cmd, value);
+}
+
+#ifdef HAVE_STRUCT_MALLINFO
+extern "C" PERFTOOLS_DLL_DECL struct mallinfo tc_mallinfo(void) PERFTOOLS_NOTHROW {
+  return do_mallinfo();
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) PERFTOOLS_NOTHROW {
+  return MallocExtension::instance()->GetAllocatedSize(ptr);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) PERFTOOLS_NOTHROW {
+  void* result = DebugAllocate(size, MallocBlock::kMallocType);
+  MallocHook::InvokeNewHook(result, size);
+  return result;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc.cc b/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc.cc
new file mode 100644
index 000000000..6c0946a62
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc.cc
@@ -0,0 +1,169 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2014, gperftools Contributors
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#include "config.h"
+
+#include "emergency_malloc.h"
+
+#include                       // for ENOMEM, errno
+#include                      // for memset
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "base/low_level_alloc.h"
+#include "base/spinlock.h"
+#include "internal_logging.h"
+
+
+namespace tcmalloc {
+  __attribute__ ((visibility("internal"))) char *emergency_arena_start;
+  __attribute__ ((visibility("internal"))) uintptr_t emergency_arena_start_shifted;
+
+  static CACHELINE_ALIGNED SpinLock emergency_malloc_lock(base::LINKER_INITIALIZED);
+  static char *emergency_arena_end;
+  static LowLevelAlloc::Arena *emergency_arena;
+
+  class EmergencyArenaPagesAllocator : public LowLevelAlloc::PagesAllocator {
+    ~EmergencyArenaPagesAllocator() {}
+    void *MapPages(int32 flags, size_t size) {
+      char *new_end = emergency_arena_end + size;
+      if (new_end > emergency_arena_start + kEmergencyArenaSize) {
+        RAW_LOG(FATAL, "Unable to allocate %zu bytes in emergency zone.", size);
+      }
+      char *rv = emergency_arena_end;
+      emergency_arena_end = new_end;
+      return static_cast(rv);
+    }
+    void UnMapPages(int32 flags, void *addr, size_t size) {
+      RAW_LOG(FATAL, "UnMapPages is not implemented for emergency arena");
+    }
+  };
+
+  static union {
+    char bytes[sizeof(EmergencyArenaPagesAllocator)];
+    void *ptr;
+  } pages_allocator_place;
+
+  static void InitEmergencyMalloc(void) {
+    const int32 flags = LowLevelAlloc::kAsyncSignalSafe;
+
+    void *arena = LowLevelAlloc::GetDefaultPagesAllocator()->MapPages(flags, kEmergencyArenaSize * 2);
+
+    uintptr_t arena_ptr = reinterpret_cast(arena);
+    uintptr_t ptr = (arena_ptr + kEmergencyArenaSize - 1) & ~(kEmergencyArenaSize-1);
+
+    emergency_arena_end = emergency_arena_start = reinterpret_cast(ptr);
+    EmergencyArenaPagesAllocator *allocator = new (pages_allocator_place.bytes) EmergencyArenaPagesAllocator();
+    emergency_arena = LowLevelAlloc::NewArenaWithCustomAlloc(0, LowLevelAlloc::DefaultArena(), allocator);
+
+    emergency_arena_start_shifted = reinterpret_cast(emergency_arena_start) >> kEmergencyArenaShift;
+
+    uintptr_t head_unmap_size = ptr - arena_ptr;
+    CHECK_CONDITION(head_unmap_size < kEmergencyArenaSize);
+    if (head_unmap_size != 0) {
+      LowLevelAlloc::GetDefaultPagesAllocator()->UnMapPages(flags, arena, ptr - arena_ptr);
+    }
+
+    uintptr_t tail_unmap_size = kEmergencyArenaSize - head_unmap_size;
+    void *tail_start = reinterpret_cast(arena_ptr + head_unmap_size + kEmergencyArenaSize);
+    LowLevelAlloc::GetDefaultPagesAllocator()->UnMapPages(flags, tail_start, tail_unmap_size);
+  }
+
+  PERFTOOLS_DLL_DECL void *EmergencyMalloc(size_t size) {
+    SpinLockHolder l(&emergency_malloc_lock);
+
+    if (emergency_arena_start == NULL) {
+      InitEmergencyMalloc();
+      CHECK_CONDITION(emergency_arena_start != NULL);
+    }
+
+    void *rv = LowLevelAlloc::AllocWithArena(size, emergency_arena);
+    if (rv == NULL) {
+      errno = ENOMEM;
+    }
+    return rv;
+  }
+
+  PERFTOOLS_DLL_DECL void EmergencyFree(void *p) {
+    SpinLockHolder l(&emergency_malloc_lock);
+    if (emergency_arena_start == NULL) {
+      InitEmergencyMalloc();
+      CHECK_CONDITION(emergency_arena_start != NULL);
+      free(p);
+      return;
+    }
+    CHECK_CONDITION(emergency_arena_start);
+    LowLevelAlloc::Free(p);
+  }
+
+  PERFTOOLS_DLL_DECL void *EmergencyRealloc(void *_old_ptr, size_t new_size) {
+    if (_old_ptr == NULL) {
+      return EmergencyMalloc(new_size);
+    }
+    if (new_size == 0) {
+      EmergencyFree(_old_ptr);
+      return NULL;
+    }
+    SpinLockHolder l(&emergency_malloc_lock);
+    CHECK_CONDITION(emergency_arena_start);
+
+    char *old_ptr = static_cast(_old_ptr);
+    CHECK_CONDITION(old_ptr <= emergency_arena_end);
+    CHECK_CONDITION(emergency_arena_start <= old_ptr);
+
+    // NOTE: we don't know previous size of old_ptr chunk. So instead
+    // of trying to figure out right size of copied memory, we just
+    // copy largest possible size. We don't care about being slow.
+    size_t old_ptr_size = emergency_arena_end - old_ptr;
+    size_t copy_size = (new_size < old_ptr_size) ? new_size : old_ptr_size;
+
+    void *new_ptr = LowLevelAlloc::AllocWithArena(new_size, emergency_arena);
+    if (new_ptr == NULL) {
+      errno = ENOMEM;
+      return NULL;
+    }
+    memcpy(new_ptr, old_ptr, copy_size);
+
+    LowLevelAlloc::Free(old_ptr);
+    return new_ptr;
+  }
+
+  PERFTOOLS_DLL_DECL void *EmergencyCalloc(size_t n, size_t elem_size) {
+    // Overflow check
+    const size_t size = n * elem_size;
+    if (elem_size != 0 && size / elem_size != n) return NULL;
+    void *rv = EmergencyMalloc(size);
+    if (rv != NULL) {
+      memset(rv, 0, size);
+    }
+    return rv;
+  }
+};
diff --git a/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc.h b/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc.h
new file mode 100644
index 000000000..8a82cfc8d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc.h
@@ -0,0 +1,60 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2014, gperftools Contributors
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef EMERGENCY_MALLOC_H
+#define EMERGENCY_MALLOC_H
+#include "config.h"
+
+#include 
+
+#include "base/basictypes.h"
+#include "common.h"
+
+namespace tcmalloc {
+  static const uintptr_t kEmergencyArenaShift = 20+4; // 16 megs
+  static const uintptr_t kEmergencyArenaSize = 1 << kEmergencyArenaShift;
+
+  extern __attribute__ ((visibility("internal"))) char *emergency_arena_start;
+  extern __attribute__ ((visibility("internal"))) uintptr_t emergency_arena_start_shifted;;
+
+  PERFTOOLS_DLL_DECL void *EmergencyMalloc(size_t size);
+  PERFTOOLS_DLL_DECL void EmergencyFree(void *p);
+  PERFTOOLS_DLL_DECL void *EmergencyCalloc(size_t n, size_t elem_size);
+  PERFTOOLS_DLL_DECL void *EmergencyRealloc(void *old_ptr, size_t new_size);
+
+  static inline bool IsEmergencyPtr(const void *_ptr) {
+    uintptr_t ptr = reinterpret_cast(_ptr);
+    return PREDICT_FALSE((ptr >> kEmergencyArenaShift) == emergency_arena_start_shifted)
+      && emergency_arena_start_shifted;
+  }
+
+} // namespace tcmalloc
+
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc_for_stacktrace.cc b/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc_for_stacktrace.cc
new file mode 100644
index 000000000..f1dc35e76
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/emergency_malloc_for_stacktrace.cc
@@ -0,0 +1,48 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2014, gperftools Contributors
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#include "emergency_malloc.h"
+#include "thread_cache.h"
+
+namespace tcmalloc {
+  bool EnterStacktraceScope(void);
+  void LeaveStacktraceScope(void);
+}
+
+bool tcmalloc::EnterStacktraceScope(void) {
+  if (ThreadCache::IsUseEmergencyMalloc()) {
+    return false;
+  }
+  ThreadCache::SetUseEmergencyMalloc();
+  return true;
+}
+
+void tcmalloc::LeaveStacktraceScope(void) {
+  ThreadCache::ResetUseEmergencyMalloc();
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/fake_stacktrace_scope.cc b/trunk/3rdparty/gperftools-2-fit/src/fake_stacktrace_scope.cc
new file mode 100644
index 000000000..ee35a0412
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/fake_stacktrace_scope.cc
@@ -0,0 +1,39 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2014, gperftools Contributors
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "base/basictypes.h"
+
+namespace tcmalloc {
+  ATTRIBUTE_WEAK bool EnterStacktraceScope(void) {
+    return true;
+  }
+  ATTRIBUTE_WEAK void LeaveStacktraceScope(void) {
+  }
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/getenv_safe.h b/trunk/3rdparty/gperftools-2-fit/src/getenv_safe.h
new file mode 100644
index 000000000..59094b1cf
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/getenv_safe.h
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+ * Copyright (c) 2014, gperftools Contributors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef GETENV_SAFE_H
+#define GETENV_SAFE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * This getenv function is safe to call before the C runtime is initialized.
+ * On Windows, it utilizes GetEnvironmentVariable() and on unix it uses
+ * /proc/self/environ instead calling getenv().  It's intended to be used in
+ * routines that run before main(), when the state required for getenv() may
+ * not be set up yet.  In particular, errno isn't set up until relatively late
+ * (after the pthreads library has a chance to make it threadsafe), and
+ * getenv() doesn't work until then.
+ * On some platforms, this call will utilize the same, static buffer for
+ * repeated GetenvBeforeMain() calls. Callers should not expect pointers from
+ * this routine to be long lived.
+ * Note that on unix, /proc only has the environment at the time the
+ * application was started, so this routine ignores setenv() calls/etc.  Also
+ * note it only reads the first 16K of the environment.
+ *
+ * NOTE: this is version of GetenvBeforeMain that's usable from
+ * C. Implementation is in sysinfo.cc
+ */
+const char* TCMallocGetenvSafe(const char* name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/getpc.h b/trunk/3rdparty/gperftools-2-fit/src/getpc.h
new file mode 100644
index 000000000..9605363bb
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/getpc.h
@@ -0,0 +1,195 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// This is an internal header file used by profiler.cc.  It defines
+// the single (inline) function GetPC.  GetPC is used in a signal
+// handler to figure out the instruction that was being executed when
+// the signal-handler was triggered.
+//
+// To get this, we use the ucontext_t argument to the signal-handler
+// callback, which holds the full context of what was going on when
+// the signal triggered.  How to get from a ucontext_t to a Program
+// Counter is OS-dependent.
+
+#ifndef BASE_GETPC_H_
+#define BASE_GETPC_H_
+
+#include "config.h"
+
+// On many linux systems, we may need _GNU_SOURCE to get access to
+// the defined constants that define the register we want to see (eg
+// REG_EIP).  Note this #define must come first!
+#define _GNU_SOURCE 1
+// If #define _GNU_SOURCE causes problems, this might work instead.
+// It will cause problems for FreeBSD though!, because it turns off
+// the needed __BSD_VISIBLE.
+//#define _XOPEN_SOURCE 500
+
+#include          // for memcmp
+#ifdef HAVE_ASM_PTRACE_H
+#include 
+#endif
+#if defined(HAVE_SYS_UCONTEXT_H)
+#include 
+#elif defined(HAVE_UCONTEXT_H)
+#include        // for ucontext_t (and also mcontext_t)
+#elif defined(HAVE_CYGWIN_SIGNAL_H)
+#include 
+typedef ucontext ucontext_t;
+#endif
+
+
+// Take the example where function Foo() calls function Bar().  For
+// many architectures, Bar() is responsible for setting up and tearing
+// down its own stack frame.  In that case, it's possible for the
+// interrupt to happen when execution is in Bar(), but the stack frame
+// is not properly set up (either before it's done being set up, or
+// after it's been torn down but before Bar() returns).  In those
+// cases, the stack trace cannot see the caller function anymore.
+//
+// GetPC can try to identify this situation, on architectures where it
+// might occur, and unwind the current function call in that case to
+// avoid false edges in the profile graph (that is, edges that appear
+// to show a call skipping over a function).  To do this, we hard-code
+// in the asm instructions we might see when setting up or tearing
+// down a stack frame.
+//
+// This is difficult to get right: the instructions depend on the
+// processor, the compiler ABI, and even the optimization level.  This
+// is a best effort patch -- if we fail to detect such a situation, or
+// mess up the PC, nothing happens; the returned PC is not used for
+// any further processing.
+struct CallUnrollInfo {
+  // Offset from (e)ip register where this instruction sequence
+  // should be matched. Interpreted as bytes. Offset 0 is the next
+  // instruction to execute. Be extra careful with negative offsets in
+  // architectures of variable instruction length (like x86) - it is
+  // not that easy as taking an offset to step one instruction back!
+  int pc_offset;
+  // The actual instruction bytes. Feel free to make it larger if you
+  // need a longer sequence.
+  unsigned char ins[16];
+  // How many bytes to match from ins array?
+  int ins_size;
+  // The offset from the stack pointer (e)sp where to look for the
+  // call return address. Interpreted as bytes.
+  int return_sp_offset;
+};
+
+
+// The dereferences needed to get the PC from a struct ucontext were
+// determined at configure time, and stored in the macro
+// PC_FROM_UCONTEXT in config.h.  The only thing we need to do here,
+// then, is to do the magic call-unrolling for systems that support it.
+
+// -- Special case 1: linux x86, for which we have CallUnrollInfo
+#if defined(__linux) && defined(__i386) && defined(__GNUC__)
+static const CallUnrollInfo callunrollinfo[] = {
+  // Entry to a function:  push %ebp;  mov  %esp,%ebp
+  // Top-of-stack contains the caller IP.
+  { 0,
+    {0x55, 0x89, 0xe5}, 3,
+    0
+  },
+  // Entry to a function, second instruction:  push %ebp;  mov  %esp,%ebp
+  // Top-of-stack contains the old frame, caller IP is +4.
+  { -1,
+    {0x55, 0x89, 0xe5}, 3,
+    4
+  },
+  // Return from a function: RET.
+  // Top-of-stack contains the caller IP.
+  { 0,
+    {0xc3}, 1,
+    0
+  }
+};
+
+inline void* GetPC(const ucontext_t& signal_ucontext) {
+  // See comment above struct CallUnrollInfo.  Only try instruction
+  // flow matching if both eip and esp looks reasonable.
+  const int eip = signal_ucontext.uc_mcontext.gregs[REG_EIP];
+  const int esp = signal_ucontext.uc_mcontext.gregs[REG_ESP];
+  if ((eip & 0xffff0000) != 0 && (~eip & 0xffff0000) != 0 &&
+      (esp & 0xffff0000) != 0) {
+    char* eip_char = reinterpret_cast(eip);
+    for (int i = 0; i < sizeof(callunrollinfo)/sizeof(*callunrollinfo); ++i) {
+      if (!memcmp(eip_char + callunrollinfo[i].pc_offset,
+                  callunrollinfo[i].ins, callunrollinfo[i].ins_size)) {
+        // We have a match.
+        void **retaddr = (void**)(esp + callunrollinfo[i].return_sp_offset);
+        return *retaddr;
+      }
+    }
+  }
+  return (void*)eip;
+}
+
+// Special case #2: Windows, which has to do something totally different.
+#elif defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__MINGW32__)
+// If this is ever implemented, probably the way to do it is to have
+// profiler.cc use a high-precision timer via timeSetEvent:
+//    http://msdn2.microsoft.com/en-us/library/ms712713.aspx
+// We'd use it in mode TIME_CALLBACK_FUNCTION/TIME_PERIODIC.
+// The callback function would be something like prof_handler, but
+// alas the arguments are different: no ucontext_t!  I don't know
+// how we'd get the PC (using StackWalk64?)
+//    http://msdn2.microsoft.com/en-us/library/ms680650.aspx
+
+#include "base/logging.h"   // for RAW_LOG
+#ifndef HAVE_CYGWIN_SIGNAL_H
+typedef int ucontext_t;
+#endif
+
+inline void* GetPC(const struct ucontext_t& signal_ucontext) {
+  RAW_LOG(ERROR, "GetPC is not yet implemented on Windows\n");
+  return NULL;
+}
+
+// Normal cases.  If this doesn't compile, it's probably because
+// PC_FROM_UCONTEXT is the empty string.  You need to figure out
+// the right value for your system, and add it to the list in
+// configure.ac (or set it manually in your config.h).
+#else
+inline void* GetPC(const ucontext_t& signal_ucontext) {
+#if defined(__s390__) && !defined(__s390x__)
+  // Mask out the AMODE31 bit from the PC recorded in the context.
+  return (void*)((unsigned long)signal_ucontext.PC_FROM_UCONTEXT & 0x7fffffffUL);
+#else
+  return (void*)signal_ucontext.PC_FROM_UCONTEXT;   // defined in config.h
+#endif
+}
+
+#endif
+
+#endif  // BASE_GETPC_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/heap-checker.h b/trunk/3rdparty/gperftools-2-fit/src/google/heap-checker.h
new file mode 100644
index 000000000..6b9ffe5a2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/heap-checker.h
@@ -0,0 +1,36 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/heap-checker.h is deprecated. Use gperftools/heap-checker.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/heap-profiler.h b/trunk/3rdparty/gperftools-2-fit/src/google/heap-profiler.h
new file mode 100644
index 000000000..0c46f6344
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/heap-profiler.h
@@ -0,0 +1,37 @@
+/* Copyright (c) 2005, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/heap-profiler.h is deprecated. Use gperftools/heap-profiler.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/malloc_extension.h b/trunk/3rdparty/gperftools-2-fit/src/google/malloc_extension.h
new file mode 100644
index 000000000..ad34decd8
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/malloc_extension.h
@@ -0,0 +1,36 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/malloc_extension.h is deprecated. Use gperftools/malloc_extension.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/malloc_extension_c.h b/trunk/3rdparty/gperftools-2-fit/src/google/malloc_extension_c.h
new file mode 100644
index 000000000..91418059a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/malloc_extension_c.h
@@ -0,0 +1,37 @@
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/malloc_extension_c.h is deprecated. Use gperftools/malloc_extension_c.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/malloc_hook.h b/trunk/3rdparty/gperftools-2-fit/src/google/malloc_hook.h
new file mode 100644
index 000000000..416283b6c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/malloc_hook.h
@@ -0,0 +1,36 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/malloc_hook.h is deprecated. Use gperftools/malloc_hook.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/malloc_hook_c.h b/trunk/3rdparty/gperftools-2-fit/src/google/malloc_hook_c.h
new file mode 100644
index 000000000..1fa1a4acd
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/malloc_hook_c.h
@@ -0,0 +1,37 @@
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/malloc_hook_c.h is deprecated. Use gperftools/malloc_hook_c.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/profiler.h b/trunk/3rdparty/gperftools-2-fit/src/google/profiler.h
new file mode 100644
index 000000000..2f9967988
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/profiler.h
@@ -0,0 +1,37 @@
+/* Copyright (c) 2005, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/profiler.h is deprecated. Use gperftools/profiler.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/stacktrace.h b/trunk/3rdparty/gperftools-2-fit/src/google/stacktrace.h
new file mode 100644
index 000000000..829b3033a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/stacktrace.h
@@ -0,0 +1,36 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/stacktrace.h is deprecated. Use gperftools/stacktrace.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/google/tcmalloc.h b/trunk/3rdparty/gperftools-2-fit/src/google/tcmalloc.h
new file mode 100644
index 000000000..ee8bb150f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/google/tcmalloc.h
@@ -0,0 +1,37 @@
+/* Copyright (c) 2003, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* The code has moved to gperftools/.  Use that include-directory for
+ * new code.
+ */
+#if defined(__GNUC__) && !defined(GPERFTOOLS_SUPPRESS_LEGACY_WARNING)
+#warning "google/tcmalloc.h is deprecated. Use gperftools/tcmalloc.h instead"
+#endif
+#include 
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/heap-checker.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/heap-checker.h
new file mode 100644
index 000000000..edd6cc7fb
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/heap-checker.h
@@ -0,0 +1,422 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Maxim Lifantsev (with design ideas by Sanjay Ghemawat)
+//
+//
+// Module for detecing heap (memory) leaks.
+//
+// For full(er) information, see docs/heap_checker.html
+//
+// This module can be linked into programs with
+// no slowdown caused by this unless you activate the leak-checker:
+//
+//    1. Set the environment variable HEAPCHEK to _type_ before
+//       running the program.
+//
+// _type_ is usually "normal" but can also be "minimal", "strict", or
+// "draconian".  (See the html file for other options, like 'local'.)
+//
+// After that, just run your binary.  If the heap-checker detects
+// a memory leak at program-exit, it will print instructions on how
+// to track down the leak.
+
+#ifndef BASE_HEAP_CHECKER_H_
+#define BASE_HEAP_CHECKER_H_
+
+#include   // for size_t
+// I can't #include config.h in this public API file, but I should
+// really use configure (and make malloc_extension.h a .in file) to
+// figure out if the system has stdint.h or not.  But I'm lazy, so
+// for now I'm assuming it's a problem only with MSVC.
+#ifndef _MSC_VER
+#include      // for uintptr_t
+#endif
+#include      // for va_list
+#include 
+
+// Annoying stuff for windows -- makes sure clients can import these functions
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+
+// The class is thread-safe with respect to all the provided static methods,
+// as well as HeapLeakChecker objects: they can be accessed by multiple threads.
+class PERFTOOLS_DLL_DECL HeapLeakChecker {
+ public:
+
+  // ----------------------------------------------------------------------- //
+  // Static functions for working with (whole-program) leak checking.
+
+  // If heap leak checking is currently active in some mode
+  // e.g. if leak checking was started (and is still active now)
+  // due to HEAPCHECK=... defined in the environment.
+  // The return value reflects iff HeapLeakChecker objects manually
+  // constructed right now will be doing leak checking or nothing.
+  // Note that we can go from active to inactive state during InitGoogle()
+  // if FLAGS_heap_check gets set to "" by some code before/during InitGoogle().
+  static bool IsActive();
+
+  // Return pointer to the whole-program checker if it has been created
+  // and NULL otherwise.
+  // Once GlobalChecker() returns non-NULL that object will not disappear and
+  // will be returned by all later GlobalChecker calls.
+  // This is mainly to access BytesLeaked() and ObjectsLeaked() (see below)
+  // for the whole-program checker after one calls NoGlobalLeaks()
+  // or similar and gets false.
+  static HeapLeakChecker* GlobalChecker();
+
+  // Do whole-program leak check now (if it was activated for this binary);
+  // return false only if it was activated and has failed.
+  // The mode of the check is controlled by the command-line flags.
+  // This method can be called repeatedly.
+  // Things like GlobalChecker()->SameHeap() can also be called explicitly
+  // to do the desired flavor of the check.
+  static bool NoGlobalLeaks();
+
+  // If whole-program checker if active,
+  // cancel its automatic execution after main() exits.
+  // This requires that some leak check (e.g. NoGlobalLeaks())
+  // has been called at least once on the whole-program checker.
+  static void CancelGlobalCheck();
+
+  // ----------------------------------------------------------------------- //
+  // Non-static functions for starting and doing leak checking.
+
+  // Start checking and name the leak check performed.
+  // The name is used in naming dumped profiles
+  // and needs to be unique only within your binary.
+  // It must also be a string that can be a part of a file name,
+  // in particular not contain path expressions.
+  explicit HeapLeakChecker(const char *name);
+
+  // Destructor (verifies that some *NoLeaks or *SameHeap method
+  // has been called at least once).
+  ~HeapLeakChecker();
+
+  // These used to be different but are all the same now: they return
+  // true iff all memory allocated since this HeapLeakChecker object
+  // was constructor is still reachable from global state.
+  //
+  // Because we fork to convert addresses to symbol-names, and forking
+  // is not thread-safe, and we may be called in a threaded context,
+  // we do not try to symbolize addresses when called manually.
+  bool NoLeaks() { return DoNoLeaks(DO_NOT_SYMBOLIZE); }
+
+  // These forms are obsolete; use NoLeaks() instead.
+  // TODO(csilvers): mark as DEPRECATED.
+  bool QuickNoLeaks()  { return NoLeaks(); }
+  bool BriefNoLeaks()  { return NoLeaks(); }
+  bool SameHeap()      { return NoLeaks(); }
+  bool QuickSameHeap() { return NoLeaks(); }
+  bool BriefSameHeap() { return NoLeaks(); }
+
+  // Detailed information about the number of leaked bytes and objects
+  // (both of these can be negative as well).
+  // These are available only after a *SameHeap or *NoLeaks
+  // method has been called.
+  // Note that it's possible for both of these to be zero
+  // while SameHeap() or NoLeaks() returned false in case
+  // of a heap state change that is significant
+  // but preserves the byte and object counts.
+  ssize_t BytesLeaked() const;
+  ssize_t ObjectsLeaked() const;
+
+  // ----------------------------------------------------------------------- //
+  // Static helpers to make us ignore certain leaks.
+
+  // Scoped helper class.  Should be allocated on the stack inside a
+  // block of code.  Any heap allocations done in the code block
+  // covered by the scoped object (including in nested function calls
+  // done by the code block) will not be reported as leaks.  This is
+  // the recommended replacement for the GetDisableChecksStart() and
+  // DisableChecksToHereFrom() routines below.
+  //
+  // Example:
+  //   void Foo() {
+  //     HeapLeakChecker::Disabler disabler;
+  //     ... code that allocates objects whose leaks should be ignored ...
+  //   }
+  //
+  // REQUIRES: Destructor runs in same thread as constructor
+  class Disabler {
+   public:
+    Disabler();
+    ~Disabler();
+   private:
+    Disabler(const Disabler&);        // disallow copy
+    void operator=(const Disabler&);  // and assign
+  };
+
+  // Ignore an object located at 'ptr' (can go at the start or into the object)
+  // as well as all heap objects (transitively) referenced from it for the
+  // purposes of heap leak checking. Returns 'ptr' so that one can write
+  //   static T* obj = IgnoreObject(new T(...));
+  //
+  // If 'ptr' does not point to an active allocated object at the time of this
+  // call, it is ignored; but if it does, the object must not get deleted from
+  // the heap later on.
+  //
+  // See also HiddenPointer, below, if you need to prevent a pointer from
+  // being traversed by the heap checker but do not wish to transitively
+  // whitelist objects referenced through it.
+  template 
+  static T* IgnoreObject(T* ptr) {
+    DoIgnoreObject(static_cast(const_cast(ptr)));
+    return ptr;
+  }
+
+  // Undo what an earlier IgnoreObject() call promised and asked to do.
+  // At the time of this call 'ptr' must point at or inside of an active
+  // allocated object which was previously registered with IgnoreObject().
+  static void UnIgnoreObject(const void* ptr);
+
+  // ----------------------------------------------------------------------- //
+  // Internal types defined in .cc
+
+  class Allocator;
+  struct RangeValue;
+
+ private:
+
+  // ----------------------------------------------------------------------- //
+  // Various helpers
+
+  // Create the name of the heap profile file.
+  // Should be deleted via Allocator::Free().
+  char* MakeProfileNameLocked();
+
+  // Helper for constructors
+  void Create(const char *name, bool make_start_snapshot);
+
+  enum ShouldSymbolize { SYMBOLIZE, DO_NOT_SYMBOLIZE };
+
+  // Helper for *NoLeaks and *SameHeap
+  bool DoNoLeaks(ShouldSymbolize should_symbolize);
+
+  // Helper for NoGlobalLeaks, also called by the global destructor.
+  static bool NoGlobalLeaksMaybeSymbolize(ShouldSymbolize should_symbolize);
+
+  // These used to be public, but they are now deprecated.
+  // Will remove entirely when all internal uses are fixed.
+  // In the meantime, use friendship so the unittest can still test them.
+  static void* GetDisableChecksStart();
+  static void DisableChecksToHereFrom(const void* start_address);
+  static void DisableChecksIn(const char* pattern);
+  friend void RangeDisabledLeaks();
+  friend void NamedTwoDisabledLeaks();
+  friend void* RunNamedDisabledLeaks(void*);
+  friend void TestHeapLeakCheckerNamedDisabling();
+
+  // Actually implements IgnoreObject().
+  static void DoIgnoreObject(const void* ptr);
+
+  // Disable checks based on stack trace entry at a depth <=
+  // max_depth.  Used to hide allocations done inside some special
+  // libraries.
+  static void DisableChecksFromToLocked(const void* start_address,
+                                        const void* end_address,
+                                        int max_depth);
+
+  // Helper for DoNoLeaks to ignore all objects reachable from all live data
+  static void IgnoreAllLiveObjectsLocked(const void* self_stack_top);
+
+  // Callback we pass to TCMalloc_ListAllProcessThreads (see thread_lister.h)
+  // that is invoked when all threads of our process are found and stopped.
+  // The call back does the things needed to ignore live data reachable from
+  // thread stacks and registers for all our threads
+  // as well as do other global-live-data ignoring
+  // (via IgnoreNonThreadLiveObjectsLocked)
+  // during the quiet state of all threads being stopped.
+  // For the argument meaning see the comment by TCMalloc_ListAllProcessThreads.
+  // Here we only use num_threads and thread_pids, that TCMalloc_ListAllProcessThreads
+  // fills for us with the number and pids of all the threads of our process
+  // it found and attached to.
+  static int IgnoreLiveThreadsLocked(void* parameter,
+                                     int num_threads,
+                                     pid_t* thread_pids,
+                                     va_list ap);
+
+  // Helper for IgnoreAllLiveObjectsLocked and IgnoreLiveThreadsLocked
+  // that we prefer to execute from IgnoreLiveThreadsLocked
+  // while all threads are stopped.
+  // This helper does live object discovery and ignoring
+  // for all objects that are reachable from everything
+  // not related to thread stacks and registers.
+  static void IgnoreNonThreadLiveObjectsLocked();
+
+  // Helper for IgnoreNonThreadLiveObjectsLocked and IgnoreLiveThreadsLocked
+  // to discover and ignore all heap objects
+  // reachable from currently considered live objects
+  // (live_objects static global variable in out .cc file).
+  // "name", "name2" are two strings that we print one after another
+  // in a debug message to describe what kind of live object sources
+  // are being used.
+  static void IgnoreLiveObjectsLocked(const char* name, const char* name2);
+
+  // Do the overall whole-program heap leak check if needed;
+  // returns true when did the leak check.
+  static bool DoMainHeapCheck();
+
+  // Type of task for UseProcMapsLocked
+  enum ProcMapsTask {
+    RECORD_GLOBAL_DATA,
+    DISABLE_LIBRARY_ALLOCS
+  };
+
+  // Success/Error Return codes for UseProcMapsLocked.
+  enum ProcMapsResult {
+    PROC_MAPS_USED,
+    CANT_OPEN_PROC_MAPS,
+    NO_SHARED_LIBS_IN_PROC_MAPS
+  };
+
+  // Read /proc/self/maps, parse it, and do the 'proc_maps_task' for each line.
+  static ProcMapsResult UseProcMapsLocked(ProcMapsTask proc_maps_task);
+
+  // A ProcMapsTask to disable allocations from 'library'
+  // that is mapped to [start_address..end_address)
+  // (only if library is a certain system library).
+  static void DisableLibraryAllocsLocked(const char* library,
+                                         uintptr_t start_address,
+                                         uintptr_t end_address);
+
+  // Return true iff "*ptr" points to a heap object
+  // ("*ptr" can point at the start or inside of a heap object
+  //  so that this works e.g. for pointers to C++ arrays, C++ strings,
+  //  multiple-inherited objects, or pointers to members).
+  // We also fill *object_size for this object then
+  // and we move "*ptr" to point to the very start of the heap object.
+  static inline bool HaveOnHeapLocked(const void** ptr, size_t* object_size);
+
+  // Helper to shutdown heap leak checker when it's not needed
+  // or can't function properly.
+  static void TurnItselfOffLocked();
+
+  // Internally-used c-tor to start whole-executable checking.
+  HeapLeakChecker();
+
+  // ----------------------------------------------------------------------- //
+  // Friends and externally accessed helpers.
+
+  // Helper for VerifyHeapProfileTableStackGet in the unittest
+  // to get the recorded allocation caller for ptr,
+  // which must be a heap object.
+  static const void* GetAllocCaller(void* ptr);
+  friend void VerifyHeapProfileTableStackGet();
+
+  // This gets to execute before constructors for all global objects
+  static void BeforeConstructorsLocked();
+  friend void HeapLeakChecker_BeforeConstructors();
+
+  // This gets to execute after destructors for all global objects
+  friend void HeapLeakChecker_AfterDestructors();
+
+  // Full starting of recommended whole-program checking.
+  friend void HeapLeakChecker_InternalInitStart();
+
+  // Runs REGISTER_HEAPCHECK_CLEANUP cleanups and potentially
+  // calls DoMainHeapCheck
+  friend void HeapLeakChecker_RunHeapCleanups();
+
+  // ----------------------------------------------------------------------- //
+  // Member data.
+
+  class SpinLock* lock_;  // to make HeapLeakChecker objects thread-safe
+  const char* name_;  // our remembered name (we own it)
+                      // NULL means this leak checker is a noop
+
+  // Snapshot taken when the checker was created.  May be NULL
+  // for the global heap checker object.  We use void* instead of
+  // HeapProfileTable::Snapshot* to avoid including heap-profile-table.h.
+  void* start_snapshot_;
+
+  bool has_checked_;  // if we have done the leak check, so these are ready:
+  ssize_t inuse_bytes_increase_;  // bytes-in-use increase for this checker
+  ssize_t inuse_allocs_increase_;  // allocations-in-use increase
+                                   // for this checker
+  bool keep_profiles_;  // iff we should keep the heap profiles we've made
+
+  // ----------------------------------------------------------------------- //
+
+  // Disallow "evil" constructors.
+  HeapLeakChecker(const HeapLeakChecker&);
+  void operator=(const HeapLeakChecker&);
+};
+
+
+// Holds a pointer that will not be traversed by the heap checker.
+// Contrast with HeapLeakChecker::IgnoreObject(o), in which o and
+// all objects reachable from o are ignored by the heap checker.
+template 
+class HiddenPointer {
+ public:
+  explicit HiddenPointer(T* t)
+      : masked_t_(reinterpret_cast(t) ^ kHideMask) {
+  }
+  // Returns unhidden pointer.  Be careful where you save the result.
+  T* get() const { return reinterpret_cast(masked_t_ ^ kHideMask); }
+
+ private:
+  // Arbitrary value, but not such that xor'ing with it is likely
+  // to map one valid pointer to another valid pointer:
+  static const uintptr_t kHideMask =
+      static_cast(0xF03A5F7BF03A5F7Bll);
+  uintptr_t masked_t_;
+};
+
+// A class that exists solely to run its destructor.  This class should not be
+// used directly, but instead by the REGISTER_HEAPCHECK_CLEANUP macro below.
+class PERFTOOLS_DLL_DECL HeapCleaner {
+ public:
+  typedef void (*void_function)(void);
+  HeapCleaner(void_function f);
+  static void RunHeapCleanups();
+ private:
+  static std::vector* heap_cleanups_;
+};
+
+// A macro to declare module heap check cleanup tasks
+// (they run only if we are doing heap leak checking.)
+// 'body' should be the cleanup code to run.  'name' doesn't matter,
+// but must be unique amongst all REGISTER_HEAPCHECK_CLEANUP calls.
+#define REGISTER_HEAPCHECK_CLEANUP(name, body)  \
+  namespace { \
+  void heapcheck_cleanup_##name() { body; } \
+  static HeapCleaner heapcheck_cleaner_##name(&heapcheck_cleanup_##name); \
+  }
+
+#endif  // BASE_HEAP_CHECKER_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/heap-profiler.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/heap-profiler.h
new file mode 100644
index 000000000..f8076e9fe
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/heap-profiler.h
@@ -0,0 +1,105 @@
+/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2005, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ *
+ * Module for heap-profiling.
+ *
+ * For full(er) information, see docs/heapprofile.html
+ *
+ * This module can be linked into your program with
+ * no slowdown caused by this unless you activate the profiler
+ * using one of the following methods:
+ *
+ *    1. Before starting the program, set the environment variable
+ *       "HEAPPROFILE" to be the name of the file to which the profile
+ *       data should be written.
+ *
+ *    2. Programmatically, start and stop the profiler using the
+ *       routines "HeapProfilerStart(filename)" and "HeapProfilerStop()".
+ *
+ */
+
+#ifndef BASE_HEAP_PROFILER_H_
+#define BASE_HEAP_PROFILER_H_
+
+#include 
+
+/* Annoying stuff for windows; makes sure clients can import these functions */
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+/* All this code should be usable from within C apps. */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Start profiling and arrange to write profile data to file names
+ * of the form: "prefix.0000", "prefix.0001", ...
+ */
+PERFTOOLS_DLL_DECL void HeapProfilerStart(const char* prefix);
+
+/* Returns non-zero if we are currently profiling the heap.  (Returns
+ * an int rather than a bool so it's usable from C.)  This is true
+ * between calls to HeapProfilerStart() and HeapProfilerStop(), and
+ * also if the program has been run with HEAPPROFILER, or some other
+ * way to turn on whole-program profiling.
+ */
+int IsHeapProfilerRunning();
+
+/* Stop heap profiling.  Can be restarted again with HeapProfilerStart(),
+ * but the currently accumulated profiling information will be cleared.
+ */
+PERFTOOLS_DLL_DECL void HeapProfilerStop();
+
+/* Dump a profile now - can be used for dumping at a hopefully
+ * quiescent state in your program, in order to more easily track down
+ * memory leaks. Will include the reason in the logged message
+ */
+PERFTOOLS_DLL_DECL void HeapProfilerDump(const char *reason);
+
+/* Generate current heap profiling information.
+ * Returns an empty string when heap profiling is not active.
+ * The returned pointer is a '\0'-terminated string allocated using malloc()
+ * and should be free()-ed as soon as the caller does not need it anymore.
+ */
+PERFTOOLS_DLL_DECL char* GetHeapProfile();
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  /* BASE_HEAP_PROFILER_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_extension.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_extension.h
new file mode 100644
index 000000000..d203394cd
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_extension.h
@@ -0,0 +1,446 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+//
+// Extra extensions exported by some malloc implementations.  These
+// extensions are accessed through a virtual base class so an
+// application can link against a malloc that does not implement these
+// extensions, and it will get default versions that do nothing.
+//
+// NOTE FOR C USERS: If you wish to use this functionality from within
+// a C program, see malloc_extension_c.h.
+
+#ifndef BASE_MALLOC_EXTENSION_H_
+#define BASE_MALLOC_EXTENSION_H_
+
+#include 
+// I can't #include config.h in this public API file, but I should
+// really use configure (and make malloc_extension.h a .in file) to
+// figure out if the system has stdint.h or not.  But I'm lazy, so
+// for now I'm assuming it's a problem only with MSVC.
+#ifndef _MSC_VER
+#include 
+#endif
+#include 
+#include 
+
+// Annoying stuff for windows -- makes sure clients can import these functions
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+static const int kMallocHistogramSize = 64;
+
+// One day, we could support other types of writers (perhaps for C?)
+typedef std::string MallocExtensionWriter;
+
+namespace base {
+struct MallocRange;
+}
+
+// Interface to a pluggable system allocator.
+class PERFTOOLS_DLL_DECL SysAllocator {
+ public:
+  SysAllocator() {
+  }
+  virtual ~SysAllocator();
+
+  // Allocates "size"-byte of memory from system aligned with "alignment".
+  // Returns NULL if failed. Otherwise, the returned pointer p up to and
+  // including (p + actual_size -1) have been allocated.
+  virtual void* Alloc(size_t size, size_t *actual_size, size_t alignment) = 0;
+};
+
+// The default implementations of the following routines do nothing.
+// All implementations should be thread-safe; the current one
+// (TCMallocImplementation) is.
+class PERFTOOLS_DLL_DECL MallocExtension {
+ public:
+  virtual ~MallocExtension();
+
+  // Call this very early in the program execution -- say, in a global
+  // constructor -- to set up parameters and state needed by all
+  // instrumented malloc implemenatations.  One example: this routine
+  // sets environemnt variables to tell STL to use libc's malloc()
+  // instead of doing its own memory management.  This is safe to call
+  // multiple times, as long as each time is before threads start up.
+  static void Initialize();
+
+  // See "verify_memory.h" to see what these routines do
+  virtual bool VerifyAllMemory();
+  virtual bool VerifyNewMemory(const void* p);
+  virtual bool VerifyArrayNewMemory(const void* p);
+  virtual bool VerifyMallocMemory(const void* p);
+  virtual bool MallocMemoryStats(int* blocks, size_t* total,
+                                 int histogram[kMallocHistogramSize]);
+
+  // Get a human readable description of the following malloc data structures.
+  // - Total inuse memory by application.
+  // - Free memory(thread, central and page heap),
+  // - Freelist of central cache, each class.
+  // - Page heap freelist.
+  // The state is stored as a null-terminated string
+  // in a prefix of "buffer[0,buffer_length-1]".
+  // REQUIRES: buffer_length > 0.
+  virtual void GetStats(char* buffer, int buffer_length);
+
+  // Outputs to "writer" a sample of live objects and the stack traces
+  // that allocated these objects.  The format of the returned output
+  // is equivalent to the output of the heap profiler and can
+  // therefore be passed to "pprof". This function is equivalent to
+  // ReadStackTraces. The main difference is that this function returns
+  // serialized data appropriately formatted for use by the pprof tool.
+  //
+  // Since gperftools 2.8 heap samples are not de-duplicated by the
+  // library anymore.
+  //
+  // NOTE: by default, tcmalloc does not do any heap sampling, and this
+  //       function will always return an empty sample.  To get useful
+  //       data from GetHeapSample, you must also set the environment
+  //       variable TCMALLOC_SAMPLE_PARAMETER to a value such as 524288.
+  virtual void GetHeapSample(MallocExtensionWriter* writer);
+
+  // Outputs to "writer" the stack traces that caused growth in the
+  // address space size.  The format of the returned output is
+  // equivalent to the output of the heap profiler and can therefore
+  // be passed to "pprof". This function is equivalent to
+  // ReadHeapGrowthStackTraces. The main difference is that this function
+  // returns serialized data appropriately formatted for use by the
+  // pprof tool.  (This does not depend on, or require,
+  // TCMALLOC_SAMPLE_PARAMETER.)
+  virtual void GetHeapGrowthStacks(MallocExtensionWriter* writer);
+
+  // Invokes func(arg, range) for every controlled memory
+  // range.  *range is filled in with information about the range.
+  //
+  // This is a best-effort interface useful only for performance
+  // analysis.  The implementation may not call func at all.
+  typedef void (RangeFunction)(void*, const base::MallocRange*);
+  virtual void Ranges(void* arg, RangeFunction func);
+
+  // -------------------------------------------------------------------
+  // Control operations for getting and setting malloc implementation
+  // specific parameters.  Some currently useful properties:
+  //
+  // generic
+  // -------
+  // "generic.current_allocated_bytes"
+  //      Number of bytes currently allocated by application
+  //      This property is not writable.
+  //
+  // "generic.heap_size"
+  //      Number of bytes in the heap ==
+  //            current_allocated_bytes +
+  //            fragmentation +
+  //            freed memory regions
+  //      This property is not writable.
+  //
+  //  "generic.total_physical_bytes"
+  //      Estimate of total bytes of the physical memory usage by the
+  //      allocator ==
+  //            current_allocated_bytes +
+  //            fragmentation +
+  //            metadata
+  //      This property is not writable.
+  //
+  // tcmalloc
+  // --------
+  // "tcmalloc.max_total_thread_cache_bytes"
+  //      Upper limit on total number of bytes stored across all
+  //      per-thread caches.  Default: 16MB.
+  //
+  // "tcmalloc.current_total_thread_cache_bytes"
+  //      Number of bytes used across all thread caches.
+  //      This property is not writable.
+  //
+  // "tcmalloc.central_cache_free_bytes"
+  //      Number of free bytes in the central cache that have been
+  //      assigned to size classes. They always count towards virtual
+  //      memory usage, and unless the underlying memory is swapped out
+  //      by the OS, they also count towards physical memory usage.
+  //      This property is not writable.
+  //
+  // "tcmalloc.transfer_cache_free_bytes"
+  //      Number of free bytes that are waiting to be transfered between
+  //      the central cache and a thread cache. They always count
+  //      towards virtual memory usage, and unless the underlying memory
+  //      is swapped out by the OS, they also count towards physical
+  //      memory usage. This property is not writable.
+  //
+  // "tcmalloc.thread_cache_free_bytes"
+  //      Number of free bytes in thread caches. They always count
+  //      towards virtual memory usage, and unless the underlying memory
+  //      is swapped out by the OS, they also count towards physical
+  //      memory usage. This property is not writable.
+  //
+  // "tcmalloc.pageheap_free_bytes"
+  //      Number of bytes in free, mapped pages in page heap.  These
+  //      bytes can be used to fulfill allocation requests.  They
+  //      always count towards virtual memory usage, and unless the
+  //      underlying memory is swapped out by the OS, they also count
+  //      towards physical memory usage.  This property is not writable.
+  //
+  // "tcmalloc.pageheap_unmapped_bytes"
+  //        Number of bytes in free, unmapped pages in page heap.
+  //        These are bytes that have been released back to the OS,
+  //        possibly by one of the MallocExtension "Release" calls.
+  //        They can be used to fulfill allocation requests, but
+  //        typically incur a page fault.  They always count towards
+  //        virtual memory usage, and depending on the OS, typically
+  //        do not count towards physical memory usage.  This property
+  //        is not writable.
+  // -------------------------------------------------------------------
+
+  // Get the named "property"'s value.  Returns true if the property
+  // is known.  Returns false if the property is not a valid property
+  // name for the current malloc implementation.
+  // REQUIRES: property != NULL; value != NULL
+  virtual bool GetNumericProperty(const char* property, size_t* value);
+
+  // Set the named "property"'s value.  Returns true if the property
+  // is known and writable.  Returns false if the property is not a
+  // valid property name for the current malloc implementation, or
+  // is not writable.
+  // REQUIRES: property != NULL
+  virtual bool SetNumericProperty(const char* property, size_t value);
+
+  // Mark the current thread as "idle".  This routine may optionally
+  // be called by threads as a hint to the malloc implementation that
+  // any thread-specific resources should be released.  Note: this may
+  // be an expensive routine, so it should not be called too often.
+  //
+  // Also, if the code that calls this routine will go to sleep for
+  // a while, it should take care to not allocate anything between
+  // the call to this routine and the beginning of the sleep.
+  //
+  // Most malloc implementations ignore this routine.
+  virtual void MarkThreadIdle();
+
+  // Mark the current thread as "busy".  This routine should be
+  // called after MarkThreadIdle() if the thread will now do more
+  // work.  If this method is not called, performance may suffer.
+  //
+  // Most malloc implementations ignore this routine.
+  virtual void MarkThreadBusy();
+
+  // Gets the system allocator used by the malloc extension instance. Returns
+  // NULL for malloc implementations that do not support pluggable system
+  // allocators.
+  virtual SysAllocator* GetSystemAllocator();
+
+  // Sets the system allocator to the specified.
+  //
+  // Users could register their own system allocators for malloc implementation
+  // that supports pluggable system allocators, such as TCMalloc, by doing:
+  //   alloc = new MyOwnSysAllocator();
+  //   MallocExtension::instance()->SetSystemAllocator(alloc);
+  // It's up to users whether to fall back (recommended) to the default
+  // system allocator (use GetSystemAllocator() above) or not. The caller is
+  // responsible to any necessary locking.
+  // See tcmalloc/system-alloc.h for the interface and
+  //     tcmalloc/memfs_malloc.cc for the examples.
+  //
+  // It's a no-op for malloc implementations that do not support pluggable
+  // system allocators.
+  virtual void SetSystemAllocator(SysAllocator *a);
+
+  // Try to release num_bytes of free memory back to the operating
+  // system for reuse.  Use this extension with caution -- to get this
+  // memory back may require faulting pages back in by the OS, and
+  // that may be slow.  (Currently only implemented in tcmalloc.)
+  virtual void ReleaseToSystem(size_t num_bytes);
+
+  // Same as ReleaseToSystem() but release as much memory as possible.
+  virtual void ReleaseFreeMemory();
+
+  // Sets the rate at which we release unused memory to the system.
+  // Zero means we never release memory back to the system.  Increase
+  // this flag to return memory faster; decrease it to return memory
+  // slower.  Reasonable rates are in the range [0,10].  (Currently
+  // only implemented in tcmalloc).
+  virtual void SetMemoryReleaseRate(double rate);
+
+  // Gets the release rate.  Returns a value < 0 if unknown.
+  virtual double GetMemoryReleaseRate();
+
+  // Returns the estimated number of bytes that will be allocated for
+  // a request of "size" bytes.  This is an estimate: an allocation of
+  // SIZE bytes may reserve more bytes, but will never reserve less.
+  // (Currently only implemented in tcmalloc, other implementations
+  // always return SIZE.)
+  // This is equivalent to malloc_good_size() in OS X.
+  virtual size_t GetEstimatedAllocatedSize(size_t size);
+
+  // Returns the actual number N of bytes reserved by tcmalloc for the
+  // pointer p.  The client is allowed to use the range of bytes
+  // [p, p+N) in any way it wishes (i.e. N is the "usable size" of this
+  // allocation).  This number may be equal to or greater than the number
+  // of bytes requested when p was allocated.
+  // p must have been allocated by this malloc implementation,
+  // must not be an interior pointer -- that is, must be exactly
+  // the pointer returned to by malloc() et al., not some offset
+  // from that -- and should not have been freed yet.  p may be NULL.
+  // (Currently only implemented in tcmalloc; other implementations
+  // will return 0.)
+  // This is equivalent to malloc_size() in OS X, malloc_usable_size()
+  // in glibc, and _msize() for windows.
+  virtual size_t GetAllocatedSize(const void* p);
+
+  // Returns kOwned if this malloc implementation allocated the memory
+  // pointed to by p, or kNotOwned if some other malloc implementation
+  // allocated it or p is NULL.  May also return kUnknownOwnership if
+  // the malloc implementation does not keep track of ownership.
+  // REQUIRES: p must be a value returned from a previous call to
+  // malloc(), calloc(), realloc(), memalign(), posix_memalign(),
+  // valloc(), pvalloc(), new, or new[], and must refer to memory that
+  // is currently allocated (so, for instance, you should not pass in
+  // a pointer after having called free() on it).
+  enum Ownership {
+    // NOTE: Enum values MUST be kept in sync with the version in
+    // malloc_extension_c.h
+    kUnknownOwnership = 0,
+    kOwned,
+    kNotOwned
+  };
+  virtual Ownership GetOwnership(const void* p);
+
+  // The current malloc implementation.  Always non-NULL.
+  static MallocExtension* instance();
+
+  // Change the malloc implementation.  Typically called by the
+  // malloc implementation during initialization.
+  static void Register(MallocExtension* implementation);
+
+  // Returns detailed information about malloc's freelists. For each list,
+  // return a FreeListInfo:
+  struct FreeListInfo {
+    size_t min_object_size;
+    size_t max_object_size;
+    size_t total_bytes_free;
+    const char* type;
+  };
+  // Each item in the vector refers to a different freelist. The lists
+  // are identified by the range of allocations that objects in the
+  // list can satisfy ([min_object_size, max_object_size]) and the
+  // type of freelist (see below). The current size of the list is
+  // returned in total_bytes_free (which count against a processes
+  // resident and virtual size).
+  //
+  // Currently supported types are:
+  //
+  // "tcmalloc.page{_unmapped}" - tcmalloc's page heap. An entry for each size
+  //          class in the page heap is returned. Bytes in "page_unmapped"
+  //          are no longer backed by physical memory and do not count against
+  //          the resident size of a process.
+  //
+  // "tcmalloc.large{_unmapped}" - tcmalloc's list of objects larger
+  //          than the largest page heap size class. Only one "large"
+  //          entry is returned. There is no upper-bound on the size
+  //          of objects in the large free list; this call returns
+  //          kint64max for max_object_size.  Bytes in
+  //          "large_unmapped" are no longer backed by physical memory
+  //          and do not count against the resident size of a process.
+  //
+  // "tcmalloc.central" - tcmalloc's central free-list. One entry per
+  //          size-class is returned. Never unmapped.
+  //
+  // "debug.free_queue" - free objects queued by the debug allocator
+  //                      and not returned to tcmalloc.
+  //
+  // "tcmalloc.thread" - tcmalloc's per-thread caches. Never unmapped.
+  virtual void GetFreeListSizes(std::vector* v);
+
+  // Get a list of stack traces of sampled allocation points.  Returns
+  // a pointer to a "new[]-ed" result array, and stores the sample
+  // period in "sample_period".
+  //
+  // The state is stored as a sequence of adjacent entries
+  // in the returned array.  Each entry has the following form:
+  //    uintptr_t count;        // Number of objects with following trace
+  //    uintptr_t size;         // Total size of objects with following trace
+  //    uintptr_t depth;        // Number of PC values in stack trace
+  //    void*     stack[depth]; // PC values that form the stack trace
+  //
+  // The list of entries is terminated by a "count" of 0.
+  //
+  // It is the responsibility of the caller to "delete[]" the returned array.
+  //
+  // May return NULL to indicate no results.
+  //
+  // This is an internal extension.  Callers should use the more
+  // convenient "GetHeapSample(string*)" method defined above.
+  virtual void** ReadStackTraces(int* sample_period);
+
+  // Like ReadStackTraces(), but returns stack traces that caused growth
+  // in the address space size.
+  virtual void** ReadHeapGrowthStackTraces();
+
+  // Returns the size in bytes of the calling threads cache.
+  virtual size_t GetThreadCacheSize();
+
+  // Like MarkThreadIdle, but does not destroy the internal data
+  // structures of the thread cache. When the thread resumes, it wil
+  // have an empty cache but will not need to pay to reconstruct the
+  // cache data structures.
+  virtual void MarkThreadTemporarilyIdle();
+};
+
+namespace base {
+
+// Information passed per range.  More fields may be added later.
+struct MallocRange {
+  enum Type {
+    INUSE,                // Application is using this range
+    FREE,                 // Range is currently free
+    UNMAPPED,             // Backing physical memory has been returned to the OS
+    UNKNOWN
+    // More enum values may be added in the future
+  };
+
+  uintptr_t address;    // Address of range
+  size_t length;        // Byte length of range
+  Type type;            // Type of this range
+  double fraction;      // Fraction of range that is being used (0 if !INUSE)
+
+  // Perhaps add the following:
+  // - stack trace if this range was sampled
+  // - heap growth stack trace if applicable to this range
+  // - age when allocated (for inuse) or freed (if not in use)
+};
+
+} // namespace base
+
+#endif  // BASE_MALLOC_EXTENSION_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_extension_c.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_extension_c.h
new file mode 100644
index 000000000..a43534f30
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_extension_c.h
@@ -0,0 +1,101 @@
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * --
+ * Author: Craig Silverstein
+ *
+ * C shims for the C++ malloc_extension.h.  See malloc_extension.h for
+ * details.  Note these C shims always work on
+ * MallocExtension::instance(); it is not possible to have more than
+ * one MallocExtension object in C applications.
+ */
+
+#ifndef _MALLOC_EXTENSION_C_H_
+#define _MALLOC_EXTENSION_C_H_
+
+#include 
+#include 
+
+/* Annoying stuff for windows -- makes sure clients can import these fns */
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define kMallocExtensionHistogramSize 64
+
+PERFTOOLS_DLL_DECL int MallocExtension_VerifyAllMemory(void);
+PERFTOOLS_DLL_DECL int MallocExtension_VerifyNewMemory(const void* p);
+PERFTOOLS_DLL_DECL int MallocExtension_VerifyArrayNewMemory(const void* p);
+PERFTOOLS_DLL_DECL int MallocExtension_VerifyMallocMemory(const void* p);
+PERFTOOLS_DLL_DECL int MallocExtension_MallocMemoryStats(int* blocks, size_t* total,
+                                      int histogram[kMallocExtensionHistogramSize]);
+PERFTOOLS_DLL_DECL void MallocExtension_GetStats(char* buffer, int buffer_length);
+
+/* TODO(csilvers): write a C version of these routines, that perhaps
+ * takes a function ptr and a void *.
+ */
+/* void MallocExtension_GetHeapSample(string* result); */
+/* void MallocExtension_GetHeapGrowthStacks(string* result); */
+
+PERFTOOLS_DLL_DECL int MallocExtension_GetNumericProperty(const char* property, size_t* value);
+PERFTOOLS_DLL_DECL int MallocExtension_SetNumericProperty(const char* property, size_t value);
+PERFTOOLS_DLL_DECL void MallocExtension_MarkThreadIdle(void);
+PERFTOOLS_DLL_DECL void MallocExtension_MarkThreadBusy(void);
+PERFTOOLS_DLL_DECL void MallocExtension_ReleaseToSystem(size_t num_bytes);
+PERFTOOLS_DLL_DECL void MallocExtension_ReleaseFreeMemory(void);
+PERFTOOLS_DLL_DECL size_t MallocExtension_GetEstimatedAllocatedSize(size_t size);
+PERFTOOLS_DLL_DECL size_t MallocExtension_GetAllocatedSize(const void* p);
+PERFTOOLS_DLL_DECL size_t MallocExtension_GetThreadCacheSize(void);
+PERFTOOLS_DLL_DECL void MallocExtension_MarkThreadTemporarilyIdle(void);
+
+/*
+ * NOTE: These enum values MUST be kept in sync with the version in
+ *       malloc_extension.h
+ */
+typedef enum {
+  MallocExtension_kUnknownOwnership = 0,
+  MallocExtension_kOwned,
+  MallocExtension_kNotOwned
+} MallocExtension_Ownership;
+
+PERFTOOLS_DLL_DECL MallocExtension_Ownership MallocExtension_GetOwnership(const void* p);
+
+#ifdef __cplusplus
+}   /* extern "C" */
+#endif
+
+#endif /* _MALLOC_EXTENSION_C_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_hook.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_hook.h
new file mode 100644
index 000000000..ab655f671
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_hook.h
@@ -0,0 +1,359 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Some of our malloc implementations can invoke the following hooks whenever
+// memory is allocated or deallocated.  MallocHook is thread-safe, and things
+// you do before calling AddFooHook(MyHook) are visible to any resulting calls
+// to MyHook.  Hooks must be thread-safe.  If you write:
+//
+//   CHECK(MallocHook::AddNewHook(&MyNewHook));
+//
+// MyNewHook will be invoked in subsequent calls in the current thread, but
+// there are no guarantees on when it might be invoked in other threads.
+//
+// There are a limited number of slots available for each hook type.  Add*Hook
+// will return false if there are no slots available.  Remove*Hook will return
+// false if the given hook was not already installed.
+//
+// The order in which individual hooks are called in Invoke*Hook is undefined.
+//
+// It is safe for a hook to remove itself within Invoke*Hook and add other
+// hooks.  Any hooks added inside a hook invocation (for the same hook type)
+// will not be invoked for the current invocation.
+//
+// One important user of these hooks is the heap profiler.
+//
+// CAVEAT: If you add new MallocHook::Invoke* calls then those calls must be
+// directly in the code of the (de)allocation function that is provided to the
+// user and that function must have an ATTRIBUTE_SECTION(malloc_hook) attribute.
+//
+// Note: the Invoke*Hook() functions are defined in malloc_hook-inl.h.  If you
+// need to invoke a hook (which you shouldn't unless you're part of tcmalloc),
+// be sure to #include malloc_hook-inl.h in addition to malloc_hook.h.
+//
+// NOTE FOR C USERS: If you want to use malloc_hook functionality from
+// a C program, #include malloc_hook_c.h instead of this file.
+
+#ifndef _MALLOC_HOOK_H_
+#define _MALLOC_HOOK_H_
+
+#include 
+#include 
+extern "C" {
+#include "malloc_hook_c.h"  // a C version of the malloc_hook interface
+}
+
+// Annoying stuff for windows -- makes sure clients can import these functions
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+// The C++ methods below call the C version (MallocHook_*), and thus
+// convert between an int and a bool.  Windows complains about this
+// (a "performance warning") which we don't care about, so we suppress.
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4800)
+#endif
+
+// Note: malloc_hook_c.h defines MallocHook_*Hook and
+// MallocHook_{Add,Remove}*Hook.  The version of these inside the MallocHook
+// class are defined in terms of the malloc_hook_c version.  See malloc_hook_c.h
+// for details of these types/functions.
+
+class PERFTOOLS_DLL_DECL MallocHook {
+ public:
+  // The NewHook is invoked whenever an object is allocated.
+  // It may be passed NULL if the allocator returned NULL.
+  typedef MallocHook_NewHook NewHook;
+  inline static bool AddNewHook(NewHook hook) {
+    return MallocHook_AddNewHook(hook);
+  }
+  inline static bool RemoveNewHook(NewHook hook) {
+    return MallocHook_RemoveNewHook(hook);
+  }
+  inline static void InvokeNewHook(const void* p, size_t s);
+
+  // The DeleteHook is invoked whenever an object is deallocated.
+  // It may be passed NULL if the caller is trying to delete NULL.
+  typedef MallocHook_DeleteHook DeleteHook;
+  inline static bool AddDeleteHook(DeleteHook hook) {
+    return MallocHook_AddDeleteHook(hook);
+  }
+  inline static bool RemoveDeleteHook(DeleteHook hook) {
+    return MallocHook_RemoveDeleteHook(hook);
+  }
+  inline static void InvokeDeleteHook(const void* p);
+
+  // The PreMmapHook is invoked with mmap or mmap64 arguments just
+  // before the call is actually made.  Such a hook may be useful
+  // in memory limited contexts, to catch allocations that will exceed
+  // a memory limit, and take outside actions to increase that limit.
+  typedef MallocHook_PreMmapHook PreMmapHook;
+  inline static bool AddPreMmapHook(PreMmapHook hook) {
+    return MallocHook_AddPreMmapHook(hook);
+  }
+  inline static bool RemovePreMmapHook(PreMmapHook hook) {
+    return MallocHook_RemovePreMmapHook(hook);
+  }
+  inline static void InvokePreMmapHook(const void* start,
+                                       size_t size,
+                                       int protection,
+                                       int flags,
+                                       int fd,
+                                       off_t offset);
+
+  // The MmapReplacement is invoked after the PreMmapHook but before
+  // the call is actually made. The MmapReplacement should return true
+  // if it handled the call, or false if it is still necessary to
+  // call mmap/mmap64.
+  // This should be used only by experts, and users must be be
+  // extremely careful to avoid recursive calls to mmap. The replacement
+  // should be async signal safe.
+  // Only one MmapReplacement is supported. After setting an MmapReplacement
+  // you must call RemoveMmapReplacement before calling SetMmapReplacement
+  // again.
+  typedef MallocHook_MmapReplacement MmapReplacement;
+  inline static bool SetMmapReplacement(MmapReplacement hook) {
+    return MallocHook_SetMmapReplacement(hook);
+  }
+  inline static bool RemoveMmapReplacement(MmapReplacement hook) {
+    return MallocHook_RemoveMmapReplacement(hook);
+  }
+  inline static bool InvokeMmapReplacement(const void* start,
+                                           size_t size,
+                                           int protection,
+                                           int flags,
+                                           int fd,
+                                           off_t offset,
+                                           void** result);
+
+
+  // The MmapHook is invoked whenever a region of memory is mapped.
+  // It may be passed MAP_FAILED if the mmap failed.
+  typedef MallocHook_MmapHook MmapHook;
+  inline static bool AddMmapHook(MmapHook hook) {
+    return MallocHook_AddMmapHook(hook);
+  }
+  inline static bool RemoveMmapHook(MmapHook hook) {
+    return MallocHook_RemoveMmapHook(hook);
+  }
+  inline static void InvokeMmapHook(const void* result,
+                                    const void* start,
+                                    size_t size,
+                                    int protection,
+                                    int flags,
+                                    int fd,
+                                    off_t offset);
+
+  // The MunmapReplacement is invoked with munmap arguments just before
+  // the call is actually made. The MunmapReplacement should return true
+  // if it handled the call, or false if it is still necessary to
+  // call munmap.
+  // This should be used only by experts. The replacement should be
+  // async signal safe.
+  // Only one MunmapReplacement is supported. After setting an
+  // MunmapReplacement you must call RemoveMunmapReplacement before
+  // calling SetMunmapReplacement again.
+  typedef MallocHook_MunmapReplacement MunmapReplacement;
+  inline static bool SetMunmapReplacement(MunmapReplacement hook) {
+    return MallocHook_SetMunmapReplacement(hook);
+  }
+  inline static bool RemoveMunmapReplacement(MunmapReplacement hook) {
+    return MallocHook_RemoveMunmapReplacement(hook);
+  }
+  inline static bool InvokeMunmapReplacement(const void* p,
+                                             size_t size,
+                                             int* result);
+
+  // The MunmapHook is invoked whenever a region of memory is unmapped.
+  typedef MallocHook_MunmapHook MunmapHook;
+  inline static bool AddMunmapHook(MunmapHook hook) {
+    return MallocHook_AddMunmapHook(hook);
+  }
+  inline static bool RemoveMunmapHook(MunmapHook hook) {
+    return MallocHook_RemoveMunmapHook(hook);
+  }
+  inline static void InvokeMunmapHook(const void* p, size_t size);
+
+  // The MremapHook is invoked whenever a region of memory is remapped.
+  typedef MallocHook_MremapHook MremapHook;
+  inline static bool AddMremapHook(MremapHook hook) {
+    return MallocHook_AddMremapHook(hook);
+  }
+  inline static bool RemoveMremapHook(MremapHook hook) {
+    return MallocHook_RemoveMremapHook(hook);
+  }
+  inline static void InvokeMremapHook(const void* result,
+                                      const void* old_addr,
+                                      size_t old_size,
+                                      size_t new_size,
+                                      int flags,
+                                      const void* new_addr);
+
+  // The PreSbrkHook is invoked just before sbrk is called -- except when
+  // the increment is 0.  This is because sbrk(0) is often called
+  // to get the top of the memory stack, and is not actually a
+  // memory-allocation call.  It may be useful in memory-limited contexts,
+  // to catch allocations that will exceed the limit and take outside
+  // actions to increase such a limit.
+  typedef MallocHook_PreSbrkHook PreSbrkHook;
+  inline static bool AddPreSbrkHook(PreSbrkHook hook) {
+    return MallocHook_AddPreSbrkHook(hook);
+  }
+  inline static bool RemovePreSbrkHook(PreSbrkHook hook) {
+    return MallocHook_RemovePreSbrkHook(hook);
+  }
+  inline static void InvokePreSbrkHook(ptrdiff_t increment);
+
+  // The SbrkHook is invoked whenever sbrk is called -- except when
+  // the increment is 0.  This is because sbrk(0) is often called
+  // to get the top of the memory stack, and is not actually a
+  // memory-allocation call.
+  typedef MallocHook_SbrkHook SbrkHook;
+  inline static bool AddSbrkHook(SbrkHook hook) {
+    return MallocHook_AddSbrkHook(hook);
+  }
+  inline static bool RemoveSbrkHook(SbrkHook hook) {
+    return MallocHook_RemoveSbrkHook(hook);
+  }
+  inline static void InvokeSbrkHook(const void* result, ptrdiff_t increment);
+
+  // Get the current stack trace.  Try to skip all routines up to and
+  // and including the caller of MallocHook::Invoke*.
+  // Use "skip_count" (similarly to GetStackTrace from stacktrace.h)
+  // as a hint about how many routines to skip if better information
+  // is not available.
+  inline static int GetCallerStackTrace(void** result, int max_depth,
+                                        int skip_count) {
+    return MallocHook_GetCallerStackTrace(result, max_depth, skip_count);
+  }
+
+  // Unhooked versions of mmap() and munmap().   These should be used
+  // only by experts, since they bypass heapchecking, etc.
+  // Note: These do not run hooks, but they still use the MmapReplacement
+  // and MunmapReplacement.
+  static void* UnhookedMMap(void *start, size_t length, int prot, int flags,
+                            int fd, off_t offset);
+  static int UnhookedMUnmap(void *start, size_t length);
+
+  // The following are DEPRECATED.
+  inline static NewHook GetNewHook();
+  inline static NewHook SetNewHook(NewHook hook) {
+    return MallocHook_SetNewHook(hook);
+  }
+
+  inline static DeleteHook GetDeleteHook();
+  inline static DeleteHook SetDeleteHook(DeleteHook hook) {
+    return MallocHook_SetDeleteHook(hook);
+  }
+
+  inline static PreMmapHook GetPreMmapHook();
+  inline static PreMmapHook SetPreMmapHook(PreMmapHook hook) {
+    return MallocHook_SetPreMmapHook(hook);
+  }
+
+  inline static MmapHook GetMmapHook();
+  inline static MmapHook SetMmapHook(MmapHook hook) {
+    return MallocHook_SetMmapHook(hook);
+  }
+
+  inline static MunmapHook GetMunmapHook();
+  inline static MunmapHook SetMunmapHook(MunmapHook hook) {
+    return MallocHook_SetMunmapHook(hook);
+  }
+
+  inline static MremapHook GetMremapHook();
+  inline static MremapHook SetMremapHook(MremapHook hook) {
+    return MallocHook_SetMremapHook(hook);
+  }
+
+  inline static PreSbrkHook GetPreSbrkHook();
+  inline static PreSbrkHook SetPreSbrkHook(PreSbrkHook hook) {
+    return MallocHook_SetPreSbrkHook(hook);
+  }
+
+  inline static SbrkHook GetSbrkHook();
+  inline static SbrkHook SetSbrkHook(SbrkHook hook) {
+    return MallocHook_SetSbrkHook(hook);
+  }
+  // End of DEPRECATED methods.
+
+ private:
+  // Slow path versions of Invoke*Hook.
+  static void InvokeNewHookSlow(const void* p, size_t s);
+  static void InvokeDeleteHookSlow(const void* p);
+  static void InvokePreMmapHookSlow(const void* start,
+                                    size_t size,
+                                    int protection,
+                                    int flags,
+                                    int fd,
+                                    off_t offset);
+  static void InvokeMmapHookSlow(const void* result,
+                                 const void* start,
+                                 size_t size,
+                                 int protection,
+                                 int flags,
+                                 int fd,
+                                 off_t offset);
+  static bool InvokeMmapReplacementSlow(const void* start,
+                                        size_t size,
+                                        int protection,
+                                        int flags,
+                                        int fd,
+                                        off_t offset,
+                                        void** result);
+  static void InvokeMunmapHookSlow(const void* p, size_t size);
+  static bool InvokeMunmapReplacementSlow(const void* p,
+                                          size_t size,
+                                          int* result);
+  static void InvokeMremapHookSlow(const void* result,
+                                   const void* old_addr,
+                                   size_t old_size,
+                                   size_t new_size,
+                                   int flags,
+                                   const void* new_addr);
+  static void InvokePreSbrkHookSlow(ptrdiff_t increment);
+  static void InvokeSbrkHookSlow(const void* result, ptrdiff_t increment);
+};
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+
+#endif /* _MALLOC_HOOK_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_hook_c.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_hook_c.h
new file mode 100644
index 000000000..5cee782ee
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/malloc_hook_c.h
@@ -0,0 +1,173 @@
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * --
+ * Author: Craig Silverstein
+ *
+ * C shims for the C++ malloc_hook.h.  See malloc_hook.h for details
+ * on how to use these.
+ */
+
+#ifndef _MALLOC_HOOK_C_H_
+#define _MALLOC_HOOK_C_H_
+
+#include 
+#include 
+
+/* Annoying stuff for windows; makes sure clients can import these functions */
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Get the current stack trace.  Try to skip all routines up to and
+ * and including the caller of MallocHook::Invoke*.
+ * Use "skip_count" (similarly to GetStackTrace from stacktrace.h)
+ * as a hint about how many routines to skip if better information
+ * is not available.
+ */
+PERFTOOLS_DLL_DECL
+int MallocHook_GetCallerStackTrace(void** result, int max_depth,
+                                   int skip_count);
+
+/* The MallocHook_{Add,Remove}*Hook functions return 1 on success and 0 on
+ * failure.
+ */
+
+typedef void (*MallocHook_NewHook)(const void* ptr, size_t size);
+PERFTOOLS_DLL_DECL
+int MallocHook_AddNewHook(MallocHook_NewHook hook);
+PERFTOOLS_DLL_DECL
+int MallocHook_RemoveNewHook(MallocHook_NewHook hook);
+
+typedef void (*MallocHook_DeleteHook)(const void* ptr);
+PERFTOOLS_DLL_DECL
+int MallocHook_AddDeleteHook(MallocHook_DeleteHook hook);
+PERFTOOLS_DLL_DECL
+int MallocHook_RemoveDeleteHook(MallocHook_DeleteHook hook);
+
+typedef void (*MallocHook_PreMmapHook)(const void *start,
+                                       size_t size,
+                                       int protection,
+                                       int flags,
+                                       int fd,
+                                       off_t offset);
+PERFTOOLS_DLL_DECL
+int MallocHook_AddPreMmapHook(MallocHook_PreMmapHook hook);
+PERFTOOLS_DLL_DECL
+int MallocHook_RemovePreMmapHook(MallocHook_PreMmapHook hook);
+
+typedef void (*MallocHook_MmapHook)(const void* result,
+                                    const void* start,
+                                    size_t size,
+                                    int protection,
+                                    int flags,
+                                    int fd,
+                                    off_t offset);
+PERFTOOLS_DLL_DECL
+int MallocHook_AddMmapHook(MallocHook_MmapHook hook);
+PERFTOOLS_DLL_DECL
+int MallocHook_RemoveMmapHook(MallocHook_MmapHook hook);
+
+typedef int (*MallocHook_MmapReplacement)(const void* start,
+                                          size_t size,
+                                          int protection,
+                                          int flags,
+                                          int fd,
+                                          off_t offset,
+                                          void** result);
+int MallocHook_SetMmapReplacement(MallocHook_MmapReplacement hook);
+int MallocHook_RemoveMmapReplacement(MallocHook_MmapReplacement hook);
+
+typedef void (*MallocHook_MunmapHook)(const void* ptr, size_t size);
+PERFTOOLS_DLL_DECL
+int MallocHook_AddMunmapHook(MallocHook_MunmapHook hook);
+PERFTOOLS_DLL_DECL
+int MallocHook_RemoveMunmapHook(MallocHook_MunmapHook hook);
+
+typedef int (*MallocHook_MunmapReplacement)(const void* ptr,
+                                            size_t size,
+                                            int* result);
+int MallocHook_SetMunmapReplacement(MallocHook_MunmapReplacement hook);
+int MallocHook_RemoveMunmapReplacement(MallocHook_MunmapReplacement hook);
+
+typedef void (*MallocHook_MremapHook)(const void* result,
+                                      const void* old_addr,
+                                      size_t old_size,
+                                      size_t new_size,
+                                      int flags,
+                                      const void* new_addr);
+PERFTOOLS_DLL_DECL
+int MallocHook_AddMremapHook(MallocHook_MremapHook hook);
+PERFTOOLS_DLL_DECL
+int MallocHook_RemoveMremapHook(MallocHook_MremapHook hook);
+
+typedef void (*MallocHook_PreSbrkHook)(ptrdiff_t increment);
+PERFTOOLS_DLL_DECL
+int MallocHook_AddPreSbrkHook(MallocHook_PreSbrkHook hook);
+PERFTOOLS_DLL_DECL
+int MallocHook_RemovePreSbrkHook(MallocHook_PreSbrkHook hook);
+
+typedef void (*MallocHook_SbrkHook)(const void* result, ptrdiff_t increment);
+PERFTOOLS_DLL_DECL
+int MallocHook_AddSbrkHook(MallocHook_SbrkHook hook);
+PERFTOOLS_DLL_DECL
+int MallocHook_RemoveSbrkHook(MallocHook_SbrkHook hook);
+
+/* The following are DEPRECATED. */
+PERFTOOLS_DLL_DECL
+MallocHook_NewHook MallocHook_SetNewHook(MallocHook_NewHook hook);
+PERFTOOLS_DLL_DECL
+MallocHook_DeleteHook MallocHook_SetDeleteHook(MallocHook_DeleteHook hook);
+PERFTOOLS_DLL_DECL
+MallocHook_PreMmapHook MallocHook_SetPreMmapHook(MallocHook_PreMmapHook hook);
+PERFTOOLS_DLL_DECL
+MallocHook_MmapHook MallocHook_SetMmapHook(MallocHook_MmapHook hook);
+PERFTOOLS_DLL_DECL
+MallocHook_MunmapHook MallocHook_SetMunmapHook(MallocHook_MunmapHook hook);
+PERFTOOLS_DLL_DECL
+MallocHook_MremapHook MallocHook_SetMremapHook(MallocHook_MremapHook hook);
+PERFTOOLS_DLL_DECL
+MallocHook_PreSbrkHook MallocHook_SetPreSbrkHook(MallocHook_PreSbrkHook hook);
+PERFTOOLS_DLL_DECL
+MallocHook_SbrkHook MallocHook_SetSbrkHook(MallocHook_SbrkHook hook);
+/* End of DEPRECATED functions. */
+
+#ifdef __cplusplus
+}   // extern "C"
+#endif
+
+#endif /* _MALLOC_HOOK_C_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/nallocx.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/nallocx.h
new file mode 100644
index 000000000..01f874ca2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/nallocx.h
@@ -0,0 +1,37 @@
+#ifndef _NALLOCX_H_
+#define _NALLOCX_H_
+#include 
+
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#  define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#  define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MALLOCX_LG_ALIGN(la) ((int)(la))
+
+/*
+ * The nallocx function allocates no memory, but it performs the same size
+ * computation as the malloc function, and returns the real size of the
+ * allocation that would result from the equivalent malloc function call.
+ * nallocx is a malloc extension originally implemented by jemalloc:
+ * http://www.unix.com/man-page/freebsd/3/nallocx/
+ *
+ * Note, we only support MALLOCX_LG_ALIGN flag and nothing else.
+ */
+PERFTOOLS_DLL_DECL size_t nallocx(size_t size, int flags);
+
+/* same as above but never weak */
+PERFTOOLS_DLL_DECL size_t tc_nallocx(size_t size, int flags);
+
+#ifdef __cplusplus
+}   /* extern "C" */
+#endif
+
+#endif /* _NALLOCX_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/profiler.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/profiler.h
new file mode 100644
index 000000000..89e34a227
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/profiler.h
@@ -0,0 +1,173 @@
+/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2005, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ *
+ * Module for CPU profiling based on periodic pc-sampling.
+ *
+ * For full(er) information, see docs/cpuprofile.html
+ *
+ * This module is linked into your program with
+ * no slowdown caused by this unless you activate the profiler
+ * using one of the following methods:
+ *
+ *    1. Before starting the program, set the environment variable
+ *       "CPUPROFILE" to be the name of the file to which the profile
+ *       data should be written.
+ *
+ *    2. Programmatically, start and stop the profiler using the
+ *       routines "ProfilerStart(filename)" and "ProfilerStop()".
+ *
+ *
+ * (Note: if using linux 2.4 or earlier, only the main thread may be
+ * profiled.)
+ *
+ * Use pprof to view the resulting profile output.
+ *    % pprof  
+ *    % pprof --gv   
+ *
+ * These functions are thread-safe.
+ */
+
+#ifndef BASE_PROFILER_H_
+#define BASE_PROFILER_H_
+
+#include        /* For time_t */
+
+/* Annoying stuff for windows; makes sure clients can import these functions */
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+/* All this code should be usable from within C apps. */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Profiler options, for use with ProfilerStartWithOptions.  To use:
+ *
+ *   struct ProfilerOptions options;
+ *   memset(&options, 0, sizeof options);
+ *
+ * then fill in fields as needed.
+ *
+ * This structure is intended to be usable from C code, so no constructor
+ * is provided to initialize it.  (Use memset as described above).
+ */
+struct ProfilerOptions {
+  /* Filter function and argument.
+   *
+   * If filter_in_thread is not NULL, when a profiling tick is delivered
+   * the profiler will call:
+   *
+   *   (*filter_in_thread)(filter_in_thread_arg)
+   *
+   * If it returns nonzero, the sample will be included in the profile.
+   * Note that filter_in_thread runs in a signal handler, so must be
+   * async-signal-safe.
+   *
+   * A typical use would be to set up filter results for each thread
+   * in the system before starting the profiler, then to make
+   * filter_in_thread be a very simple function which retrieves those
+   * results in an async-signal-safe way.  Retrieval could be done
+   * using thread-specific data, or using a shared data structure that
+   * supports async-signal-safe lookups.
+   */
+  int (*filter_in_thread)(void *arg);
+  void *filter_in_thread_arg;
+};
+
+/* Start profiling and write profile info into fname, discarding any
+ * existing profiling data in that file.
+ *
+ * This is equivalent to calling ProfilerStartWithOptions(fname, NULL).
+ */
+PERFTOOLS_DLL_DECL int ProfilerStart(const char* fname);
+
+/* Start profiling and write profile into fname, discarding any
+ * existing profiling data in that file.
+ *
+ * The profiler is configured using the options given by 'options'.
+ * Options which are not specified are given default values.
+ *
+ * 'options' may be NULL, in which case all are given default values.
+ *
+ * Returns nonzero if profiling was started successfully, or zero else.
+ */
+PERFTOOLS_DLL_DECL int ProfilerStartWithOptions(
+    const char *fname, const struct ProfilerOptions *options);
+
+/* Stop profiling. Can be started again with ProfilerStart(), but
+ * the currently accumulated profiling data will be cleared.
+ */
+PERFTOOLS_DLL_DECL void ProfilerStop(void);
+
+/* Flush any currently buffered profiling state to the profile file.
+ * Has no effect if the profiler has not been started.
+ */
+PERFTOOLS_DLL_DECL void ProfilerFlush(void);
+
+
+/* DEPRECATED: these functions were used to enable/disable profiling
+ * in the current thread, but no longer do anything.
+ */
+PERFTOOLS_DLL_DECL void ProfilerEnable(void);
+PERFTOOLS_DLL_DECL void ProfilerDisable(void);
+
+/* Returns nonzero if profile is currently enabled, zero if it's not. */
+PERFTOOLS_DLL_DECL int ProfilingIsEnabledForAllThreads(void);
+
+/* Routine for registering new threads with the profiler.
+ */
+PERFTOOLS_DLL_DECL void ProfilerRegisterThread(void);
+
+/* Stores state about profiler's current status into "*state". */
+struct ProfilerState {
+  int    enabled;             /* Is profiling currently enabled? */
+  time_t start_time;          /* If enabled, when was profiling started? */
+  char   profile_name[1024];  /* Name of profile file being written, or '\0' */
+  int    samples_gathered;    /* Number of samples gathered so far (or 0) */
+};
+PERFTOOLS_DLL_DECL void ProfilerGetCurrentState(struct ProfilerState* state);
+
+/* Returns the current stack trace, to be called from a SIGPROF handler. */
+PERFTOOLS_DLL_DECL int ProfilerGetStackTrace(
+    void** result, int max_depth, int skip_count, const void *uc);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  /* BASE_PROFILER_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/stacktrace.h b/trunk/3rdparty/gperftools-2-fit/src/gperftools/stacktrace.h
new file mode 100644
index 000000000..a0890f488
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/stacktrace.h
@@ -0,0 +1,117 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Routines to extract the current stack trace.  These functions are
+// thread-safe.
+
+#ifndef GOOGLE_STACKTRACE_H_
+#define GOOGLE_STACKTRACE_H_
+
+// Annoying stuff for windows -- makes sure clients can import these functions
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+
+// Skips the most recent "skip_count" stack frames (also skips the
+// frame generated for the "GetStackFrames" routine itself), and then
+// records the pc values for up to the next "max_depth" frames in
+// "result", and the corresponding stack frame sizes in "sizes".
+// Returns the number of values recorded in "result"/"sizes".
+//
+// Example:
+//      main() { foo(); }
+//      foo() { bar(); }
+//      bar() {
+//        void* result[10];
+//        int sizes[10];
+//        int depth = GetStackFrames(result, sizes, 10, 1);
+//      }
+//
+// The GetStackFrames call will skip the frame for "bar".  It will
+// return 2 and will produce pc values that map to the following
+// procedures:
+//      result[0]       foo
+//      result[1]       main
+// (Actually, there may be a few more entries after "main" to account for
+// startup procedures.)
+// And corresponding stack frame sizes will also be recorded:
+//    sizes[0]       16
+//    sizes[1]       16
+// (Stack frame sizes of 16 above are just for illustration purposes.)
+// Stack frame sizes of 0 or less indicate that those frame sizes couldn't
+// be identified.
+//
+// This routine may return fewer stack frame entries than are
+// available. Also note that "result" and "sizes" must both be non-NULL.
+extern PERFTOOLS_DLL_DECL int GetStackFrames(void** result, int* sizes, int max_depth,
+                          int skip_count);
+
+// Same as above, but to be used from a signal handler. The "uc" parameter
+// should be the pointer to ucontext_t which was passed as the 3rd parameter
+// to sa_sigaction signal handler. It may help the unwinder to get a
+// better stack trace under certain conditions. The "uc" may safely be NULL.
+extern PERFTOOLS_DLL_DECL int GetStackFramesWithContext(void** result, int* sizes, int max_depth,
+                                     int skip_count, const void *uc);
+
+// This is similar to the GetStackFrames routine, except that it returns
+// the stack trace only, and not the stack frame sizes as well.
+// Example:
+//      main() { foo(); }
+//      foo() { bar(); }
+//      bar() {
+//        void* result[10];
+//        int depth = GetStackTrace(result, 10, 1);
+//      }
+//
+// This produces:
+//      result[0]       foo
+//      result[1]       main
+//           ....       ...
+//
+// "result" must not be NULL.
+extern PERFTOOLS_DLL_DECL int GetStackTrace(void** result, int max_depth,
+                                            int skip_count);
+
+// Same as above, but to be used from a signal handler. The "uc" parameter
+// should be the pointer to ucontext_t which was passed as the 3rd parameter
+// to sa_sigaction signal handler. It may help the unwinder to get a
+// better stack trace under certain conditions. The "uc" may safely be NULL.
+extern PERFTOOLS_DLL_DECL int GetStackTraceWithContext(void** result, int max_depth,
+                                    int skip_count, const void *uc);
+
+#endif /* GOOGLE_STACKTRACE_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/gperftools/tcmalloc.h.in b/trunk/3rdparty/gperftools-2-fit/src/gperftools/tcmalloc.h.in
new file mode 100644
index 000000000..0c8a3ddcf
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/gperftools/tcmalloc.h.in
@@ -0,0 +1,163 @@
+/* -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2003, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat 
+ *         .h file by Craig Silverstein 
+ */
+
+#ifndef TCMALLOC_TCMALLOC_H_
+#define TCMALLOC_TCMALLOC_H_
+
+#include                      /* for size_t */
+#ifdef __cplusplus
+#include                           /* for std::nothrow_t, std::align_val_t */
+#endif
+
+/* Define the version number so folks can check against it */
+#define TC_VERSION_MAJOR  @TC_VERSION_MAJOR@
+#define TC_VERSION_MINOR  @TC_VERSION_MINOR@
+#define TC_VERSION_PATCH  "@TC_VERSION_PATCH@"
+#define TC_VERSION_STRING "gperftools @TC_VERSION_MAJOR@.@TC_VERSION_MINOR@@TC_VERSION_PATCH@"
+
+/* For struct mallinfo, if it's defined. */
+#if @ac_cv_have_struct_mallinfo@
+# include 
+#endif
+
+#ifndef PERFTOOLS_NOTHROW
+
+#if __cplusplus >= 201103L
+#define PERFTOOLS_NOTHROW noexcept
+#elif defined(__cplusplus)
+#define PERFTOOLS_NOTHROW throw()
+#else
+# ifdef __GNUC__
+#  define PERFTOOLS_NOTHROW __attribute__((__nothrow__))
+# else
+#  define PERFTOOLS_NOTHROW
+# endif
+#endif
+
+#endif
+
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  /*
+   * Returns a human-readable version string.  If major, minor,
+   * and/or patch are not NULL, they are set to the major version,
+   * minor version, and patch-code (a string, usually "").
+   */
+  PERFTOOLS_DLL_DECL const char* tc_version(int* major, int* minor,
+                                            const char** patch) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_free(void* ptr) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_free_sized(void *ptr, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_realloc(void* ptr, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_calloc(size_t nmemb, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void* tc_memalign(size_t __alignment,
+                                       size_t __size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL int tc_posix_memalign(void** ptr,
+                                           size_t align, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_valloc(size_t __size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t __size) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void tc_malloc_stats(void) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) PERFTOOLS_NOTHROW;
+#if @ac_cv_have_struct_mallinfo@
+  PERFTOOLS_DLL_DECL struct mallinfo tc_mallinfo(void) PERFTOOLS_NOTHROW;
+#endif
+
+  /*
+   * This is an alias for MallocExtension::instance()->GetAllocatedSize().
+   * It is equivalent to
+   *    OS X: malloc_size()
+   *    glibc: malloc_usable_size()
+   *    Windows: _msize()
+   */
+  PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) PERFTOOLS_NOTHROW;
+
+#ifdef __cplusplus
+  PERFTOOLS_DLL_DECL int tc_set_new_mode(int flag) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_new(size_t size);
+  PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size,
+                                          const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete(void* p) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_sized(void* p, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p,
+                                            const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_newarray(size_t size);
+  PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size,
+                                               const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray(void* p) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_sized(void* p, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p,
+                                                 const std::nothrow_t&) PERFTOOLS_NOTHROW;
+
+#if @ac_cv_have_std_align_val_t@ && __cplusplus >= 201703L
+  PERFTOOLS_DLL_DECL void* tc_new_aligned(size_t size, std::align_val_t al);
+  PERFTOOLS_DLL_DECL void* tc_new_aligned_nothrow(size_t size, std::align_val_t al,
+                                          const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_aligned(void* p, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_sized_aligned(void* p, size_t size, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_aligned_nothrow(void* p, std::align_val_t al,
+                                            const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_newarray_aligned(size_t size, std::align_val_t al);
+  PERFTOOLS_DLL_DECL void* tc_newarray_aligned_nothrow(size_t size, std::align_val_t al,
+                                               const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_aligned(void* p, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_sized_aligned(void* p, size_t size, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_aligned_nothrow(void* p, std::align_val_t al,
+                                                 const std::nothrow_t&) PERFTOOLS_NOTHROW;
+#endif
+}
+#endif
+
+/* We're only un-defining for public */
+#if !defined(GPERFTOOLS_CONFIG_H_)
+
+#undef PERFTOOLS_NOTHROW
+
+#endif /* GPERFTOOLS_CONFIG_H_ */
+
+#endif  /* #ifndef TCMALLOC_TCMALLOC_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/heap-checker-bcad.cc b/trunk/3rdparty/gperftools-2-fit/src/heap-checker-bcad.cc
new file mode 100644
index 000000000..8b0dbe139
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/heap-checker-bcad.cc
@@ -0,0 +1,93 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// All Rights Reserved.
+//
+// Author: Maxim Lifantsev
+//
+// A file to ensure that components of heap leak checker run before
+// all global object constructors and after all global object
+// destructors.
+//
+// This file must be the last library any binary links against.
+// Otherwise, the heap checker may not be able to run early enough to
+// catalog all the global objects in your program.  If this happens,
+// and later in the program you allocate memory and have one of these
+// "uncataloged" global objects point to it, the heap checker will
+// consider that allocation to be a leak, even though it's not (since
+// the allocated object is reachable from global data and hence "live").
+
+#include       // for abort()
+#include 
+
+// A dummy variable to refer from heap-checker.cc.  This is to make
+// sure this file is not optimized out by the linker.
+bool heap_leak_checker_bcad_variable;
+
+extern void HeapLeakChecker_AfterDestructors();  // in heap-checker.cc
+
+// A helper class to ensure that some components of heap leak checking
+// can happen before construction and after destruction
+// of all global/static objects.
+class HeapLeakCheckerGlobalPrePost {
+ public:
+  HeapLeakCheckerGlobalPrePost() {
+    if (count_ == 0) {
+      // The 'new int' will ensure that we have run an initial malloc
+      // hook, which will set up the heap checker via
+      // MallocHook_InitAtFirstAllocation_HeapLeakChecker.  See malloc_hook.cc.
+      // This is done in this roundabout fashion in order to avoid self-deadlock
+      // if we directly called HeapLeakChecker_BeforeConstructors here.
+      delete new int;
+      // This needs to be called before the first allocation of an STL
+      // object, but after libc is done setting up threads (because it
+      // calls setenv, which requires a thread-aware errno).  By
+      // putting it here, we hope it's the first bit of code executed
+      // after the libc global-constructor code.
+      MallocExtension::Initialize();
+    }
+    ++count_;
+  }
+  ~HeapLeakCheckerGlobalPrePost() {
+    if (count_ <= 0)  abort();
+    --count_;
+    if (count_ == 0)  HeapLeakChecker_AfterDestructors();
+  }
+ private:
+  // Counter of constructions/destructions of objects of this class
+  // (just in case there are more than one of them).
+  static int count_;
+};
+
+int HeapLeakCheckerGlobalPrePost::count_ = 0;
+
+// The early-construction/late-destruction global object.
+static const HeapLeakCheckerGlobalPrePost heap_leak_checker_global_pre_post;
diff --git a/trunk/3rdparty/gperftools-2-fit/src/heap-checker.cc b/trunk/3rdparty/gperftools-2-fit/src/heap-checker.cc
new file mode 100644
index 000000000..199fc93b0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/heap-checker.cc
@@ -0,0 +1,2388 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// All Rights Reserved.
+//
+// Author: Maxim Lifantsev
+//
+
+#include "config.h"
+
+#include     // for O_RDONLY (we use syscall to do actual reads)
+#include 
+#include 
+#ifdef HAVE_UNISTD_H
+#include 
+#endif
+#ifdef HAVE_MMAP
+#include 
+#endif
+#ifdef HAVE_PTHREAD
+#include 
+#endif
+#include 
+#include 
+#include 
+#include 
+
+#if defined(HAVE_LINUX_PTRACE_H)
+#include 
+#endif
+#ifdef HAVE_SYS_SYSCALL_H
+#include 
+#endif
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__MINGW32__)
+#include 
+#include 
+#undef ERROR     // windows defines these as macros, which can cause trouble
+#undef max
+#undef min
+#endif
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include 
+
+#include "base/basictypes.h"
+#include "base/googleinit.h"
+#include "base/logging.h"
+#include 
+#include "base/commandlineflags.h"
+#include "base/elfcore.h"              // for i386_regs
+#include "base/thread_lister.h"
+#include "heap-profile-table.h"
+#include "base/low_level_alloc.h"
+#include "malloc_hook-inl.h"
+#include 
+#include 
+#include "maybe_threads.h"
+#include "memory_region_map.h"
+#include "base/spinlock.h"
+#include "base/sysinfo.h"
+#include "base/stl_allocator.h"
+
+using std::string;
+using std::basic_string;
+using std::pair;
+using std::map;
+using std::set;
+using std::vector;
+using std::swap;
+using std::make_pair;
+using std::min;
+using std::max;
+using std::less;
+using std::char_traits;
+
+// If current process is being ptrace()d, 'TracerPid' in /proc/self/status
+// will be non-zero.
+static bool IsDebuggerAttached(void) {    // only works under linux, probably
+  char buf[256];   // TracerPid comes relatively earlier in status output
+  int fd = open("/proc/self/status", O_RDONLY);
+  if (fd == -1) {
+    return false;  // Can't tell for sure.
+  }
+  const int len = read(fd, buf, sizeof(buf));
+  bool rc = false;
+  if (len > 0) {
+    const char *const kTracerPid = "TracerPid:\t";
+    buf[len - 1] = '\0';
+    const char *p = strstr(buf, kTracerPid);
+    if (p != NULL) {
+      rc = (strncmp(p + strlen(kTracerPid), "0\n", 2) != 0);
+    }
+  }
+  close(fd);
+  return rc;
+}
+
+// This is the default if you don't link in -lprofiler
+extern "C" {
+ATTRIBUTE_WEAK PERFTOOLS_DLL_DECL int ProfilingIsEnabledForAllThreads();
+int ProfilingIsEnabledForAllThreads() { return false; }
+}
+
+//----------------------------------------------------------------------
+// Flags that control heap-checking
+//----------------------------------------------------------------------
+
+DEFINE_string(heap_check,
+              EnvToString("HEAPCHECK", ""),
+              "The heap leak checking to be done over the whole executable: "
+              "\"minimal\", \"normal\", \"strict\", "
+              "\"draconian\", \"as-is\", and \"local\" "
+              " or the empty string are the supported choices. "
+              "(See HeapLeakChecker_InternalInitStart for details.)");
+
+DEFINE_bool(heap_check_report, true, "Obsolete");
+
+DEFINE_bool(heap_check_before_constructors,
+            true,
+            "deprecated; pretty much always true now");
+
+DEFINE_bool(heap_check_after_destructors,
+            EnvToBool("HEAP_CHECK_AFTER_DESTRUCTORS", false),
+            "If overall heap check is to end after global destructors "
+            "or right after all REGISTER_HEAPCHECK_CLEANUP's");
+
+DEFINE_bool(heap_check_strict_check, true, "Obsolete");
+
+DEFINE_bool(heap_check_ignore_global_live,
+            EnvToBool("HEAP_CHECK_IGNORE_GLOBAL_LIVE", true),
+            "If overall heap check is to ignore heap objects reachable "
+            "from the global data");
+
+DEFINE_bool(heap_check_identify_leaks,
+            EnvToBool("HEAP_CHECK_IDENTIFY_LEAKS", false),
+            "If heap check should generate the addresses of the leaked "
+            "objects in the memory leak profiles.  This may be useful "
+            "in tracking down leaks where only a small fraction of "
+            "objects allocated at the same stack trace are leaked.");
+
+DEFINE_bool(heap_check_ignore_thread_live,
+            EnvToBool("HEAP_CHECK_IGNORE_THREAD_LIVE", true),
+            "If set to true, objects reachable from thread stacks "
+            "and registers are not reported as leaks");
+
+DEFINE_bool(heap_check_test_pointer_alignment,
+            EnvToBool("HEAP_CHECK_TEST_POINTER_ALIGNMENT", false),
+            "Set to true to check if the found leak can be due to "
+            "use of unaligned pointers");
+
+// Alignment at which all pointers in memory are supposed to be located;
+// use 1 if any alignment is ok.
+// heap_check_test_pointer_alignment flag guides if we try the value of 1.
+// The larger it can be, the lesser is the chance of missing real leaks.
+static const size_t kPointerSourceAlignment = sizeof(void*);
+DEFINE_int32(heap_check_pointer_source_alignment,
+	     EnvToInt("HEAP_CHECK_POINTER_SOURCE_ALIGNMENT",
+                      kPointerSourceAlignment),
+             "Alignment at which all pointers in memory are supposed to be "
+             "located.  Use 1 if any alignment is ok.");
+
+// A reasonable default to handle pointers inside of typical class objects:
+// Too low and we won't be able to traverse pointers to normally-used
+// nested objects and base parts of multiple-inherited objects.
+// Too high and it will both slow down leak checking (FindInsideAlloc
+// in HaveOnHeapLocked will get slower when there are large on-heap objects)
+// and make it probabilistically more likely to miss leaks
+// of large-sized objects.
+static const int64 kHeapCheckMaxPointerOffset = 1024;
+DEFINE_int64(heap_check_max_pointer_offset,
+	     EnvToInt("HEAP_CHECK_MAX_POINTER_OFFSET",
+                      kHeapCheckMaxPointerOffset),
+             "Largest pointer offset for which we traverse "
+             "pointers going inside of heap allocated objects. "
+             "Set to -1 to use the actual largest heap object size.");
+
+DEFINE_bool(heap_check_run_under_gdb,
+            EnvToBool("HEAP_CHECK_RUN_UNDER_GDB", false),
+            "If false, turns off heap-checking library when running under gdb "
+            "(normally, set to 'true' only when debugging the heap-checker)");
+
+DEFINE_int32(heap_check_delay_seconds, 0,
+             "Number of seconds to delay on-exit heap checking."
+             " If you set this flag,"
+             " you may also want to set exit_timeout_seconds in order to"
+             " avoid exit timeouts.\n"
+             "NOTE: This flag is to be used only to help diagnose issues"
+             " where it is suspected that the heap checker is reporting"
+             " false leaks that will disappear if the heap checker delays"
+             " its checks. Report any such issues to the heap-checker"
+             " maintainer(s).");
+
+//----------------------------------------------------------------------
+
+DEFINE_string(heap_profile_pprof,
+              EnvToString("PPROF_PATH", "pprof"),
+              "OBSOLETE; not used");
+
+DEFINE_string(heap_check_dump_directory,
+              EnvToString("HEAP_CHECK_DUMP_DIRECTORY", "/tmp"),
+              "Directory to put heap-checker leak dump information");
+
+
+//----------------------------------------------------------------------
+// HeapLeakChecker global data
+//----------------------------------------------------------------------
+
+// Global lock for all the global data of this module.
+static SpinLock heap_checker_lock(SpinLock::LINKER_INITIALIZED);
+
+//----------------------------------------------------------------------
+
+// Heap profile prefix for leak checking profiles.
+// Gets assigned once when leak checking is turned on, then never modified.
+static const string* profile_name_prefix = NULL;
+
+// Whole-program heap leak checker.
+// Gets assigned once when leak checking is turned on,
+// then main_heap_checker is never deleted.
+static HeapLeakChecker* main_heap_checker = NULL;
+
+// Whether we will use main_heap_checker to do a check at program exit
+// automatically. In any case user can ask for more checks on main_heap_checker
+// via GlobalChecker().
+static bool do_main_heap_check = false;
+
+// The heap profile we use to collect info about the heap.
+// This is created in HeapLeakChecker::BeforeConstructorsLocked
+// together with setting heap_checker_on (below) to true
+// and registering our new/delete malloc hooks;
+// similarly all are unset in HeapLeakChecker::TurnItselfOffLocked.
+static HeapProfileTable* heap_profile = NULL;
+
+// If we are doing (or going to do) any kind of heap-checking.
+static bool heap_checker_on = false;
+
+// pid of the process that does whole-program heap leak checking
+static pid_t heap_checker_pid = 0;
+
+// If we did heap profiling during global constructors execution
+static bool constructor_heap_profiling = false;
+
+// RAW_VLOG level we dump key INFO messages at.  If you want to turn
+// off these messages, set the environment variable PERFTOOLS_VERBOSE=-1.
+static const int heap_checker_info_level = 0;
+
+//----------------------------------------------------------------------
+// HeapLeakChecker's own memory allocator that is
+// independent of the normal program allocator.
+//----------------------------------------------------------------------
+
+// Wrapper of LowLevelAlloc for STL_Allocator and direct use.
+// We always access this class under held heap_checker_lock,
+// this allows us to in particular protect the period when threads are stopped
+// at random spots with TCMalloc_ListAllProcessThreads by heap_checker_lock,
+// w/o worrying about the lock in LowLevelAlloc::Arena.
+// We rely on the fact that we use an own arena with an own lock here.
+class HeapLeakChecker::Allocator {
+ public:
+  static void Init() {
+    RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+    RAW_DCHECK(arena_ == NULL, "");
+    arena_ = LowLevelAlloc::NewArena(0, LowLevelAlloc::DefaultArena());
+  }
+  static void Shutdown() {
+    RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+    if (!LowLevelAlloc::DeleteArena(arena_)  ||  alloc_count_ != 0) {
+      RAW_LOG(FATAL, "Internal heap checker leak of %d objects", alloc_count_);
+    }
+  }
+  static int alloc_count() {
+    RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+    return alloc_count_;
+  }
+  static void* Allocate(size_t n) {
+    RAW_DCHECK(arena_  &&  heap_checker_lock.IsHeld(), "");
+    void* p = LowLevelAlloc::AllocWithArena(n, arena_);
+    if (p) alloc_count_ += 1;
+    return p;
+  }
+  static void Free(void* p) {
+    RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+    if (p) alloc_count_ -= 1;
+    LowLevelAlloc::Free(p);
+  }
+  static void Free(void* p, size_t /* n */) {
+    Free(p);
+  }
+  // destruct, free, and make *p to be NULL
+  template static void DeleteAndNull(T** p) {
+    (*p)->~T();
+    Free(*p);
+    *p = NULL;
+  }
+  template static void DeleteAndNullIfNot(T** p) {
+    if (*p != NULL) DeleteAndNull(p);
+  }
+ private:
+  static LowLevelAlloc::Arena* arena_;
+  static int alloc_count_;
+};
+
+LowLevelAlloc::Arena* HeapLeakChecker::Allocator::arena_ = NULL;
+int HeapLeakChecker::Allocator::alloc_count_ = 0;
+
+//----------------------------------------------------------------------
+// HeapLeakChecker live object tracking components
+//----------------------------------------------------------------------
+
+// Cases of live object placement we distinguish
+enum ObjectPlacement {
+  MUST_BE_ON_HEAP,   // Must point to a live object of the matching size in the
+                     // heap_profile map of the heap when we get to it
+  IGNORED_ON_HEAP,   // Is a live (ignored) object on heap
+  MAYBE_LIVE,        // Is a piece of writable memory from /proc/self/maps
+  IN_GLOBAL_DATA,    // Is part of global data region of the executable
+  THREAD_DATA,       // Part of a thread stack and a thread descriptor with TLS
+  THREAD_REGISTERS,  // Values in registers of some thread
+};
+
+// Information about an allocated object
+struct AllocObject {
+  const void* ptr;        // the object
+  uintptr_t size;         // its size
+  ObjectPlacement place;  // where ptr points to
+
+  AllocObject(const void* p, size_t s, ObjectPlacement l)
+    : ptr(p), size(s), place(l) { }
+};
+
+// All objects (memory ranges) ignored via HeapLeakChecker::IgnoreObject
+// Key is the object's address; value is its size.
+typedef map,
+            STL_Allocator,
+                          HeapLeakChecker::Allocator>
+           > IgnoredObjectsMap;
+static IgnoredObjectsMap* ignored_objects = NULL;
+
+// All objects (memory ranges) that we consider to be the sources of pointers
+// to live (not leaked) objects.
+// At different times this holds (what can be reached from) global data regions
+// and the objects we've been told to ignore.
+// For any AllocObject::ptr "live_objects" is supposed to contain at most one
+// record at any time. We maintain this by checking with the heap_profile map
+// of the heap and removing the live heap objects we've handled from it.
+// This vector is maintained as a stack and the frontier of reachable
+// live heap objects in our flood traversal of them.
+typedef vector
+              > LiveObjectsStack;
+static LiveObjectsStack* live_objects = NULL;
+
+// A special string type that uses my allocator
+typedef basic_string,
+                     STL_Allocator
+                    > HCL_string;
+
+// A placeholder to fill-in the starting values for live_objects
+// for each library so we can keep the library-name association for logging.
+typedef map,
+            STL_Allocator,
+                          HeapLeakChecker::Allocator>
+           > LibraryLiveObjectsStacks;
+static LibraryLiveObjectsStacks* library_live_objects = NULL;
+
+// Value stored in the map of disabled address ranges;
+// its key is the end of the address range.
+// We'll ignore allocations with a return address in a disabled range
+// if the address occurs at 'max_depth' or less in the stack trace.
+struct HeapLeakChecker::RangeValue {
+  uintptr_t start_address;  // the start of the range
+  int       max_depth;      // the maximal stack depth to disable at
+};
+typedef map,
+            STL_Allocator,
+                          HeapLeakChecker::Allocator>
+           > DisabledRangeMap;
+// The disabled program counter address ranges for profile dumping
+// that are registered with HeapLeakChecker::DisableChecksFromToLocked.
+static DisabledRangeMap* disabled_ranges = NULL;
+
+// Set of stack tops.
+// These are used to consider live only appropriate chunks of the memory areas
+// that are used for stacks (and maybe thread-specific data as well)
+// so that we do not treat pointers from outdated stack frames as live.
+typedef set,
+            STL_Allocator
+           > StackTopSet;
+static StackTopSet* stack_tops = NULL;
+
+// A map of ranges of code addresses for the system libraries
+// that can mmap/mremap/sbrk-allocate memory regions for stacks
+// and thread-local storage that we want to consider as live global data.
+// Maps from the end address to the start address.
+typedef map,
+            STL_Allocator,
+                          HeapLeakChecker::Allocator>
+           > GlobalRegionCallerRangeMap;
+static GlobalRegionCallerRangeMap* global_region_caller_ranges = NULL;
+
+// TODO(maxim): make our big data structs into own modules
+
+// Disabler is implemented by keeping track of a per-thread count
+// of active Disabler objects.  Any objects allocated while the
+// count > 0 are not reported.
+
+#ifdef HAVE_TLS
+
+static __thread int thread_disable_counter
+// The "inital exec" model is faster than the default TLS model, at
+// the cost you can't dlopen this library.  But dlopen on heap-checker
+// doesn't work anyway -- it must run before main -- so this is a good
+// trade-off.
+# ifdef HAVE___ATTRIBUTE__
+   __attribute__ ((tls_model ("initial-exec")))
+# endif
+    ;
+inline int get_thread_disable_counter() {
+  return thread_disable_counter;
+}
+inline void set_thread_disable_counter(int value) {
+  thread_disable_counter = value;
+}
+
+#else  // #ifdef HAVE_TLS
+
+static pthread_key_t thread_disable_counter_key;
+static int main_thread_counter;   // storage for use before main()
+static bool use_main_thread_counter = true;
+
+// TODO(csilvers): this is called from NewHook, in the middle of malloc().
+// If perftools_pthread_getspecific calls malloc, that will lead to an
+// infinite loop.  I don't know how to fix that, so I hope it never happens!
+inline int get_thread_disable_counter() {
+  if (use_main_thread_counter)  // means we're running really early
+    return main_thread_counter;
+  void* p = perftools_pthread_getspecific(thread_disable_counter_key);
+  return (intptr_t)p;   // kinda evil: store the counter directly in the void*
+}
+
+inline void set_thread_disable_counter(int value) {
+  if (use_main_thread_counter) {   // means we're running really early
+    main_thread_counter = value;
+    return;
+  }
+  intptr_t pointer_sized_value = value;
+  // kinda evil: store the counter directly in the void*
+  void* p = (void*)pointer_sized_value;
+  // NOTE: this may call malloc, which will call NewHook which will call
+  // get_thread_disable_counter() which will call pthread_getspecific().  I
+  // don't know if anything bad can happen if we call getspecific() in the
+  // middle of a setspecific() call.  It seems to work ok in practice...
+  perftools_pthread_setspecific(thread_disable_counter_key, p);
+}
+
+// The idea here is that this initializer will run pretty late: after
+// pthreads have been totally set up.  At this point we can call
+// pthreads routines, so we set those up.
+class InitThreadDisableCounter {
+ public:
+  InitThreadDisableCounter() {
+    perftools_pthread_key_create(&thread_disable_counter_key, NULL);
+    // Set up the main thread's value, which we have a special variable for.
+    void* p = (void*)(intptr_t)main_thread_counter;   // store the counter directly
+    perftools_pthread_setspecific(thread_disable_counter_key, p);
+    use_main_thread_counter = false;
+  }
+};
+InitThreadDisableCounter init_thread_disable_counter;
+
+#endif  // #ifdef HAVE_TLS
+
+HeapLeakChecker::Disabler::Disabler() {
+  // It is faster to unconditionally increment the thread-local
+  // counter than to check whether or not heap-checking is on
+  // in a thread-safe manner.
+  int counter = get_thread_disable_counter();
+  set_thread_disable_counter(counter + 1);
+  RAW_VLOG(10, "Increasing thread disable counter to %d", counter + 1);
+}
+
+HeapLeakChecker::Disabler::~Disabler() {
+  int counter = get_thread_disable_counter();
+  RAW_DCHECK(counter > 0, "");
+  if (counter > 0) {
+    set_thread_disable_counter(counter - 1);
+    RAW_VLOG(10, "Decreasing thread disable counter to %d", counter);
+  } else {
+    RAW_VLOG(0, "Thread disable counter underflow : %d", counter);
+  }
+}
+
+//----------------------------------------------------------------------
+
+// The size of the largest heap object allocated so far.
+static size_t max_heap_object_size = 0;
+// The possible range of addresses that can point
+// into one of the elements of heap_objects.
+static uintptr_t min_heap_address = uintptr_t(-1LL);
+static uintptr_t max_heap_address = 0;
+
+//----------------------------------------------------------------------
+
+// Simple casting helpers for uintptr_t and void*:
+template
+inline static const void* AsPtr(T addr) {
+  return reinterpret_cast(addr);
+}
+inline static uintptr_t AsInt(const void* ptr) {
+  return reinterpret_cast(ptr);
+}
+
+//----------------------------------------------------------------------
+
+// We've seen reports that strstr causes heap-checker crashes in some
+// libc's (?):
+//    http://code.google.com/p/gperftools/issues/detail?id=263
+// It's simple enough to use our own.  This is not in time-critical code.
+static const char* hc_strstr(const char* s1, const char* s2) {
+  const size_t len = strlen(s2);
+  RAW_CHECK(len > 0, "Unexpected empty string passed to strstr()");
+  for (const char* p = strchr(s1, *s2); p != NULL; p = strchr(p+1, *s2)) {
+    if (strncmp(p, s2, len) == 0) {
+      return p;
+    }
+  }
+  return NULL;
+}
+
+//----------------------------------------------------------------------
+
+// Our hooks for MallocHook
+static void NewHook(const void* ptr, size_t size) {
+  if (ptr != NULL) {
+    const int counter = get_thread_disable_counter();
+    const bool ignore = (counter > 0);
+    RAW_VLOG(16, "Recording Alloc: %p of %zu; %d", ptr, size,
+             int(counter));
+
+    // Fetch the caller's stack trace before acquiring heap_checker_lock.
+    void* stack[HeapProfileTable::kMaxStackDepth];
+    int depth = HeapProfileTable::GetCallerStackTrace(0, stack);
+
+    { SpinLockHolder l(&heap_checker_lock);
+      if (size > max_heap_object_size) max_heap_object_size = size;
+      uintptr_t addr = AsInt(ptr);
+      if (addr < min_heap_address) min_heap_address = addr;
+      addr += size;
+      if (addr > max_heap_address) max_heap_address = addr;
+      if (heap_checker_on) {
+        heap_profile->RecordAlloc(ptr, size, depth, stack);
+        if (ignore) {
+          heap_profile->MarkAsIgnored(ptr);
+        }
+      }
+    }
+    RAW_VLOG(17, "Alloc Recorded: %p of %zu", ptr, size);
+  }
+}
+
+static void DeleteHook(const void* ptr) {
+  if (ptr != NULL) {
+    RAW_VLOG(16, "Recording Free %p", ptr);
+    { SpinLockHolder l(&heap_checker_lock);
+      if (heap_checker_on) heap_profile->RecordFree(ptr);
+    }
+    RAW_VLOG(17, "Free Recorded: %p", ptr);
+  }
+}
+
+//----------------------------------------------------------------------
+
+enum StackDirection {
+  GROWS_TOWARDS_HIGH_ADDRESSES,
+  GROWS_TOWARDS_LOW_ADDRESSES,
+  UNKNOWN_DIRECTION
+};
+
+// Determine which way the stack grows:
+
+static StackDirection ATTRIBUTE_NOINLINE GetStackDirection(
+    const uintptr_t *const ptr) {
+  uintptr_t x;
+  if (&x < ptr)
+    return GROWS_TOWARDS_LOW_ADDRESSES;
+  if (ptr < &x)
+    return GROWS_TOWARDS_HIGH_ADDRESSES;
+
+  RAW_CHECK(0, "");  // Couldn't determine the stack direction.
+
+  return UNKNOWN_DIRECTION;
+}
+
+// Direction of stack growth (will initialize via GetStackDirection())
+static StackDirection stack_direction = UNKNOWN_DIRECTION;
+
+// This routine is called for every thread stack we know about to register it.
+static void RegisterStackLocked(const void* top_ptr) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  RAW_DCHECK(MemoryRegionMap::LockIsHeld(), "");
+  RAW_VLOG(10, "Thread stack at %p", top_ptr);
+  uintptr_t top = AsInt(top_ptr);
+  stack_tops->insert(top);  // add for later use
+
+  // make sure stack_direction is initialized
+  if (stack_direction == UNKNOWN_DIRECTION) {
+    stack_direction = GetStackDirection(&top);
+  }
+
+  // Find memory region with this stack
+  MemoryRegionMap::Region region;
+  if (MemoryRegionMap::FindAndMarkStackRegion(top, ®ion)) {
+    // Make the proper portion of the stack live:
+    if (stack_direction == GROWS_TOWARDS_LOW_ADDRESSES) {
+      RAW_VLOG(11, "Live stack at %p of %" PRIuPTR " bytes",
+                  top_ptr, region.end_addr - top);
+      live_objects->push_back(AllocObject(top_ptr, region.end_addr - top,
+                                          THREAD_DATA));
+    } else {  // GROWS_TOWARDS_HIGH_ADDRESSES
+      RAW_VLOG(11, "Live stack at %p of %" PRIuPTR " bytes",
+                  AsPtr(region.start_addr),
+                  top - region.start_addr);
+      live_objects->push_back(AllocObject(AsPtr(region.start_addr),
+                                          top - region.start_addr,
+                                          THREAD_DATA));
+    }
+  // not in MemoryRegionMap, look in library_live_objects:
+  } else if (FLAGS_heap_check_ignore_global_live) {
+    for (LibraryLiveObjectsStacks::iterator lib = library_live_objects->begin();
+         lib != library_live_objects->end(); ++lib) {
+      for (LiveObjectsStack::iterator span = lib->second.begin();
+           span != lib->second.end(); ++span) {
+        uintptr_t start = AsInt(span->ptr);
+        uintptr_t end = start + span->size;
+        if (start <= top  &&  top < end) {
+          RAW_VLOG(11, "Stack at %p is inside /proc/self/maps chunk %p..%p",
+                      top_ptr, AsPtr(start), AsPtr(end));
+          // Shrink start..end region by chopping away the memory regions in
+          // MemoryRegionMap that land in it to undo merging of regions
+          // in /proc/self/maps, so that we correctly identify what portion
+          // of start..end is actually the stack region.
+          uintptr_t stack_start = start;
+          uintptr_t stack_end = end;
+          // can optimize-away this loop, but it does not run often
+          RAW_DCHECK(MemoryRegionMap::LockIsHeld(), "");
+          for (MemoryRegionMap::RegionIterator r =
+                 MemoryRegionMap::BeginRegionLocked();
+               r != MemoryRegionMap::EndRegionLocked(); ++r) {
+            if (top < r->start_addr  &&  r->start_addr < stack_end) {
+              stack_end = r->start_addr;
+            }
+            if (stack_start < r->end_addr  &&  r->end_addr <= top) {
+              stack_start = r->end_addr;
+            }
+          }
+          if (stack_start != start  ||  stack_end != end) {
+            RAW_VLOG(11, "Stack at %p is actually inside memory chunk %p..%p",
+                        top_ptr, AsPtr(stack_start), AsPtr(stack_end));
+          }
+          // Make the proper portion of the stack live:
+          if (stack_direction == GROWS_TOWARDS_LOW_ADDRESSES) {
+            RAW_VLOG(11, "Live stack at %p of %" PRIuPTR " bytes",
+                        top_ptr, stack_end - top);
+            live_objects->push_back(
+              AllocObject(top_ptr, stack_end - top, THREAD_DATA));
+          } else {  // GROWS_TOWARDS_HIGH_ADDRESSES
+            RAW_VLOG(11, "Live stack at %p of %" PRIuPTR " bytes",
+                        AsPtr(stack_start), top - stack_start);
+            live_objects->push_back(
+              AllocObject(AsPtr(stack_start), top - stack_start, THREAD_DATA));
+          }
+          lib->second.erase(span);  // kill the rest of the region
+          // Put the non-stack part(s) of the region back:
+          if (stack_start != start) {
+            lib->second.push_back(AllocObject(AsPtr(start), stack_start - start,
+                                  MAYBE_LIVE));
+          }
+          if (stack_end != end) {
+            lib->second.push_back(AllocObject(AsPtr(stack_end), end - stack_end,
+                                  MAYBE_LIVE));
+          }
+          return;
+        }
+      }
+    }
+    RAW_LOG(ERROR, "Memory region for stack at %p not found. "
+                   "Will likely report false leak positives.", top_ptr);
+  }
+}
+
+// Iterator for heap allocation map data to make ignored objects "live"
+// (i.e., treated as roots for the mark-and-sweep phase)
+static void MakeIgnoredObjectsLiveCallbackLocked(
+    const void* ptr, const HeapProfileTable::AllocInfo& info) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  if (info.ignored) {
+    live_objects->push_back(AllocObject(ptr, info.object_size,
+                                        MUST_BE_ON_HEAP));
+  }
+}
+
+// Iterator for heap allocation map data to make objects allocated from
+// disabled regions of code to be live.
+static void MakeDisabledLiveCallbackLocked(
+    const void* ptr, const HeapProfileTable::AllocInfo& info) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  bool stack_disable = false;
+  bool range_disable = false;
+  for (int depth = 0; depth < info.stack_depth; depth++) {
+    uintptr_t addr = AsInt(info.call_stack[depth]);
+    if (disabled_ranges) {
+      DisabledRangeMap::const_iterator iter
+        = disabled_ranges->upper_bound(addr);
+      if (iter != disabled_ranges->end()) {
+        RAW_DCHECK(iter->first > addr, "");
+        if (iter->second.start_address < addr  &&
+            iter->second.max_depth > depth) {
+          range_disable = true;  // in range; dropping
+          break;
+        }
+      }
+    }
+  }
+  if (stack_disable || range_disable) {
+    uintptr_t start_address = AsInt(ptr);
+    uintptr_t end_address = start_address + info.object_size;
+    StackTopSet::const_iterator iter
+      = stack_tops->lower_bound(start_address);
+    if (iter != stack_tops->end()) {
+      RAW_DCHECK(*iter >= start_address, "");
+      if (*iter < end_address) {
+        // We do not disable (treat as live) whole allocated regions
+        // if they are used to hold thread call stacks
+        // (i.e. when we find a stack inside).
+        // The reason is that we'll treat as live the currently used
+        // stack portions anyway (see RegisterStackLocked),
+        // and the rest of the region where the stack lives can well
+        // contain outdated stack variables which are not live anymore,
+        // hence should not be treated as such.
+        RAW_VLOG(11, "Not %s-disabling %zu bytes at %p"
+                    ": have stack inside: %p",
+                    (stack_disable ? "stack" : "range"),
+                    info.object_size, ptr, AsPtr(*iter));
+        return;
+      }
+    }
+    RAW_VLOG(11, "%s-disabling %zu bytes at %p",
+                (stack_disable ? "Stack" : "Range"), info.object_size, ptr);
+    live_objects->push_back(AllocObject(ptr, info.object_size,
+                                        MUST_BE_ON_HEAP));
+  }
+}
+
+static const char kUnnamedProcSelfMapEntry[] = "UNNAMED";
+
+// This function takes some fields from a /proc/self/maps line:
+//
+//   start_address  start address of a memory region.
+//   end_address    end address of a memory region
+//   permissions    rwx + private/shared bit
+//   filename       filename of the mapped file
+//
+// If the region is not writeable, then it cannot have any heap
+// pointers in it, otherwise we record it as a candidate live region
+// to get filtered later.
+static void RecordGlobalDataLocked(uintptr_t start_address,
+                                   uintptr_t end_address,
+                                   const char* permissions,
+                                   const char* filename) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  // Ignore non-writeable regions.
+  if (strchr(permissions, 'w') == NULL) return;
+  if (filename == NULL  ||  *filename == '\0') {
+    filename = kUnnamedProcSelfMapEntry;
+  }
+  RAW_VLOG(11, "Looking into %s: 0x%" PRIxPTR "..0x%" PRIxPTR,
+              filename, start_address, end_address);
+  (*library_live_objects)[filename].
+    push_back(AllocObject(AsPtr(start_address),
+                          end_address - start_address,
+                          MAYBE_LIVE));
+}
+
+// See if 'library' from /proc/self/maps has base name 'library_base'
+// i.e. contains it and has '.' or '-' after it.
+static bool IsLibraryNamed(const char* library, const char* library_base) {
+  const char* p = hc_strstr(library, library_base);
+  size_t sz = strlen(library_base);
+  return p != NULL  &&  (p[sz] == '.'  ||  p[sz] == '-');
+}
+
+// static
+void HeapLeakChecker::DisableLibraryAllocsLocked(const char* library,
+                                                 uintptr_t start_address,
+                                                 uintptr_t end_address) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  int depth = 0;
+  // TODO(maxim): maybe this should be extended to also use objdump
+  //              and pick the text portion of the library more precisely.
+  if (IsLibraryNamed(library, "/libpthread")  ||
+        // libpthread has a lot of small "system" leaks we don't care about.
+        // In particular it allocates memory to store data supplied via
+        // pthread_setspecific (which can be the only pointer to a heap object).
+      IsLibraryNamed(library, "/libdl")  ||
+        // library loaders leak some "system" heap that we don't care about
+      IsLibraryNamed(library, "/libcrypto")  ||
+        // Sometimes libcrypto of OpenSSH is compiled with -fomit-frame-pointer
+        // (any library can be, of course, but this one often is because speed
+        // is so important for making crypto usable).  We ignore all its
+        // allocations because we can't see the call stacks.  We'd prefer
+        // to ignore allocations done in files/symbols that match
+        // "default_malloc_ex|default_realloc_ex"
+        // but that doesn't work when the end-result binary is stripped.
+      IsLibraryNamed(library, "/libjvm")  ||
+        // JVM has a lot of leaks we don't care about.
+      IsLibraryNamed(library, "/libzip")
+        // The JVM leaks java.util.zip.Inflater after loading classes.
+     ) {
+    depth = 1;  // only disable allocation calls directly from the library code
+  } else if (IsLibraryNamed(library, "/ld")
+               // library loader leaks some "system" heap
+               // (e.g. thread-local storage) that we don't care about
+            ) {
+    depth = 2;  // disable allocation calls directly from the library code
+                // and at depth 2 from it.
+    // We need depth 2 here solely because of a libc bug that
+    // forces us to jump through __memalign_hook and MemalignOverride hoops
+    // in tcmalloc.cc.
+    // Those buggy __libc_memalign() calls are in ld-linux.so and happen for
+    // thread-local storage allocations that we want to ignore here.
+    // We go with the depth-2 hack as a workaround for this libc bug:
+    // otherwise we'd need to extend MallocHook interface
+    // so that correct stack depth adjustment can be propagated from
+    // the exceptional case of MemalignOverride.
+    // Using depth 2 here should not mask real leaks because ld-linux.so
+    // does not call user code.
+  }
+  if (depth) {
+    RAW_VLOG(10, "Disabling allocations from %s at depth %d:", library, depth);
+    DisableChecksFromToLocked(AsPtr(start_address), AsPtr(end_address), depth);
+    if (IsLibraryNamed(library, "/libpthread")  ||
+        IsLibraryNamed(library, "/libdl")  ||
+        IsLibraryNamed(library, "/ld")) {
+      RAW_VLOG(10, "Global memory regions made by %s will be live data",
+                  library);
+      if (global_region_caller_ranges == NULL) {
+        global_region_caller_ranges =
+          new(Allocator::Allocate(sizeof(GlobalRegionCallerRangeMap)))
+            GlobalRegionCallerRangeMap;
+      }
+      global_region_caller_ranges
+        ->insert(make_pair(end_address, start_address));
+    }
+  }
+}
+
+// static
+HeapLeakChecker::ProcMapsResult HeapLeakChecker::UseProcMapsLocked(
+                                  ProcMapsTask proc_maps_task) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  // Need to provide own scratch memory to ProcMapsIterator:
+  ProcMapsIterator::Buffer buffer;
+  ProcMapsIterator it(0, &buffer);
+  if (!it.Valid()) {
+    int errsv = errno;
+    RAW_LOG(ERROR, "Could not open /proc/self/maps: errno=%d. "
+                   "Libraries will not be handled correctly.", errsv);
+    return CANT_OPEN_PROC_MAPS;
+  }
+  uint64 start_address, end_address, file_offset;
+  int64 inode;
+  char *permissions, *filename;
+  bool saw_shared_lib = false;
+  bool saw_nonzero_inode = false;
+  bool saw_shared_lib_with_nonzero_inode = false;
+  while (it.Next(&start_address, &end_address, &permissions,
+                 &file_offset, &inode, &filename)) {
+    if (start_address >= end_address) {
+      // Warn if a line we can be interested in is ill-formed:
+      if (inode != 0) {
+        RAW_LOG(ERROR, "Errors reading /proc/self/maps. "
+                       "Some global memory regions will not "
+                       "be handled correctly.");
+      }
+      // Silently skip other ill-formed lines: some are possible
+      // probably due to the interplay of how /proc/self/maps is updated
+      // while we read it in chunks in ProcMapsIterator and
+      // do things in this loop.
+      continue;
+    }
+    // Determine if any shared libraries are present (this is the same
+    // list of extensions as is found in pprof).  We want to ignore
+    // 'fake' libraries with inode 0 when determining.  However, some
+    // systems don't share inodes via /proc, so we turn off this check
+    // if we don't see any evidence that we're getting inode info.
+    if (inode != 0) {
+      saw_nonzero_inode = true;
+    }
+    if ((hc_strstr(filename, "lib") && hc_strstr(filename, ".so")) ||
+        hc_strstr(filename, ".dll") ||
+        // not all .dylib filenames start with lib. .dylib is big enough
+        // that we are unlikely to get false matches just checking that.
+        hc_strstr(filename, ".dylib") || hc_strstr(filename, ".bundle")) {
+      saw_shared_lib = true;
+      if (inode != 0) {
+        saw_shared_lib_with_nonzero_inode = true;
+      }
+    }
+
+    switch (proc_maps_task) {
+      case DISABLE_LIBRARY_ALLOCS:
+        // All lines starting like
+        // "401dc000-4030f000 r??p 00132000 03:01 13991972  lib/bin"
+        // identify a data and code sections of a shared library or our binary
+        if (inode != 0 && strncmp(permissions, "r-xp", 4) == 0) {
+          DisableLibraryAllocsLocked(filename, start_address, end_address);
+        }
+        break;
+      case RECORD_GLOBAL_DATA:
+        RecordGlobalDataLocked(start_address, end_address,
+                               permissions, filename);
+        break;
+      default:
+        RAW_CHECK(0, "");
+    }
+  }
+  // If /proc/self/maps is reporting inodes properly (we saw a
+  // non-zero inode), then we only say we saw a shared lib if we saw a
+  // 'real' one, with a non-zero inode.
+  if (saw_nonzero_inode) {
+    saw_shared_lib = saw_shared_lib_with_nonzero_inode;
+  }
+  if (!saw_shared_lib) {
+    RAW_LOG(ERROR, "No shared libs detected. Will likely report false leak "
+                   "positives for statically linked executables.");
+    return NO_SHARED_LIBS_IN_PROC_MAPS;
+  }
+  return PROC_MAPS_USED;
+}
+
+// Total number and size of live objects dropped from the profile;
+// (re)initialized in IgnoreAllLiveObjectsLocked.
+static int64 live_objects_total;
+static int64 live_bytes_total;
+
+// pid of the thread that is doing the current leak check
+// (protected by our lock; IgnoreAllLiveObjectsLocked sets it)
+static pid_t self_thread_pid = 0;
+
+// Status of our thread listing callback execution
+// (protected by our lock; used from within IgnoreAllLiveObjectsLocked)
+static enum {
+  CALLBACK_NOT_STARTED,
+  CALLBACK_STARTED,
+  CALLBACK_COMPLETED,
+} thread_listing_status = CALLBACK_NOT_STARTED;
+
+// Ideally to avoid deadlocks this function should not result in any libc
+// or other function calls that might need to lock a mutex:
+// It is called when all threads of a process are stopped
+// at arbitrary points thus potentially holding those locks.
+//
+// In practice we are calling some simple i/o and sprintf-type library functions
+// for logging messages, but use only our own LowLevelAlloc::Arena allocator.
+//
+// This is known to be buggy: the library i/o function calls are able to cause
+// deadlocks when they request a lock that a stopped thread happens to hold.
+// This issue as far as we know have so far not resulted in any deadlocks
+// in practice, so for now we are taking our chance that the deadlocks
+// have insignificant frequency.
+//
+// If such deadlocks become a problem we should make the i/o calls
+// into appropriately direct system calls (or eliminate them),
+// in particular write() is not safe and vsnprintf() is potentially dangerous
+// due to reliance on locale functions (these are called through RAW_LOG
+// and in other ways).
+//
+
+#if defined(HAVE_LINUX_PTRACE_H) && defined(HAVE_SYS_SYSCALL_H) && defined(DUMPER)
+# if (defined(__i386__) || defined(__x86_64))
+#  define THREAD_REGS i386_regs
+# elif defined(__PPC__)
+#  define THREAD_REGS ppc_regs
+# endif
+#endif
+
+/*static*/ int HeapLeakChecker::IgnoreLiveThreadsLocked(void* parameter,
+                                                        int num_threads,
+                                                        pid_t* thread_pids,
+                                                        va_list /*ap*/) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  thread_listing_status = CALLBACK_STARTED;
+  RAW_VLOG(11, "Found %d threads (from pid %d)", num_threads, getpid());
+
+  if (FLAGS_heap_check_ignore_global_live) {
+    UseProcMapsLocked(RECORD_GLOBAL_DATA);
+  }
+
+  // We put the registers from other threads here
+  // to make pointers stored in them live.
+  vector > thread_registers;
+
+  int failures = 0;
+  for (int i = 0; i < num_threads; ++i) {
+    // the leak checking thread itself is handled
+    // specially via self_thread_stack, not here:
+    if (thread_pids[i] == self_thread_pid) continue;
+    RAW_VLOG(11, "Handling thread with pid %d", thread_pids[i]);
+#ifdef THREAD_REGS
+    THREAD_REGS thread_regs;
+#define sys_ptrace(r, p, a, d)  syscall(SYS_ptrace, (r), (p), (a), (d))
+    // We use sys_ptrace to avoid thread locking
+    // because this is called from TCMalloc_ListAllProcessThreads
+    // when all but this thread are suspended.
+    if (sys_ptrace(PTRACE_GETREGS, thread_pids[i], NULL, &thread_regs) == 0) {
+      // Need to use SP to get all the data from the very last stack frame:
+      COMPILE_ASSERT(sizeof(thread_regs.SP) == sizeof(void*),
+                     SP_register_does_not_look_like_a_pointer);
+      RegisterStackLocked(reinterpret_cast(thread_regs.SP));
+      // Make registers live (just in case PTRACE_ATTACH resulted in some
+      // register pointers still being in the registers and not on the stack):
+      for (void** p = reinterpret_cast(&thread_regs);
+           p < reinterpret_cast(&thread_regs + 1); ++p) {
+        RAW_VLOG(12, "Thread register %p", *p);
+        thread_registers.push_back(*p);
+      }
+    } else {
+      failures += 1;
+    }
+#else
+    failures += 1;
+#endif
+  }
+  // Use all the collected thread (stack) liveness sources:
+  IgnoreLiveObjectsLocked("threads stack data", "");
+  if (thread_registers.size()) {
+    // Make thread registers be live heap data sources.
+    // we rely here on the fact that vector is in one memory chunk:
+    RAW_VLOG(11, "Live registers at %p of %zu bytes",
+                &thread_registers[0], thread_registers.size() * sizeof(void*));
+    live_objects->push_back(AllocObject(&thread_registers[0],
+                                        thread_registers.size() * sizeof(void*),
+                                        THREAD_REGISTERS));
+    IgnoreLiveObjectsLocked("threads register data", "");
+  }
+  // Do all other liveness walking while all threads are stopped:
+  IgnoreNonThreadLiveObjectsLocked();
+  // Can now resume the threads:
+  TCMalloc_ResumeAllProcessThreads(num_threads, thread_pids);
+  thread_listing_status = CALLBACK_COMPLETED;
+  return failures;
+}
+
+// Stack top of the thread that is doing the current leak check
+// (protected by our lock; IgnoreAllLiveObjectsLocked sets it)
+static const void* self_thread_stack_top;
+
+// static
+void HeapLeakChecker::IgnoreNonThreadLiveObjectsLocked() {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  RAW_DCHECK(MemoryRegionMap::LockIsHeld(), "");
+  RAW_VLOG(11, "Handling self thread with pid %d", self_thread_pid);
+  // Register our own stack:
+
+  // Important that all stack ranges (including the one here)
+  // are known before we start looking at them
+  // in MakeDisabledLiveCallbackLocked:
+  RegisterStackLocked(self_thread_stack_top);
+  IgnoreLiveObjectsLocked("stack data", "");
+
+  // Make objects we were told to ignore live:
+  if (ignored_objects) {
+    for (IgnoredObjectsMap::const_iterator object = ignored_objects->begin();
+         object != ignored_objects->end(); ++object) {
+      const void* ptr = AsPtr(object->first);
+      RAW_VLOG(11, "Ignored live object at %p of %zu bytes",
+                  ptr, object->second);
+      live_objects->
+        push_back(AllocObject(ptr, object->second, MUST_BE_ON_HEAP));
+      // we do this liveness check for ignored_objects before doing any
+      // live heap walking to make sure it does not fail needlessly:
+      size_t object_size;
+      if (!(heap_profile->FindAlloc(ptr, &object_size)  &&
+            object->second == object_size)) {
+        RAW_LOG(FATAL, "Object at %p of %zu bytes from an"
+                       " IgnoreObject() has disappeared", ptr, object->second);
+      }
+    }
+    IgnoreLiveObjectsLocked("ignored objects", "");
+  }
+
+  // Treat objects that were allocated when a Disabler was live as
+  // roots.  I.e., if X was allocated while a Disabler was active,
+  // and Y is reachable from X, arrange that neither X nor Y are
+  // treated as leaks.
+  heap_profile->IterateAllocs(MakeIgnoredObjectsLiveCallbackLocked);
+  IgnoreLiveObjectsLocked("disabled objects", "");
+
+  // Make code-address-disabled objects live and ignored:
+  // This in particular makes all thread-specific data live
+  // because the basic data structure to hold pointers to thread-specific data
+  // is allocated from libpthreads and we have range-disabled that
+  // library code with UseProcMapsLocked(DISABLE_LIBRARY_ALLOCS);
+  // so now we declare all thread-specific data reachable from there as live.
+  heap_profile->IterateAllocs(MakeDisabledLiveCallbackLocked);
+  IgnoreLiveObjectsLocked("disabled code", "");
+
+  // Actually make global data live:
+  if (FLAGS_heap_check_ignore_global_live) {
+    bool have_null_region_callers = false;
+    for (LibraryLiveObjectsStacks::iterator l = library_live_objects->begin();
+         l != library_live_objects->end(); ++l) {
+      RAW_CHECK(live_objects->empty(), "");
+      // Process library_live_objects in l->second
+      // filtering them by MemoryRegionMap:
+      // It's safe to iterate over MemoryRegionMap
+      // w/o locks here as we are inside MemoryRegionMap::Lock():
+      RAW_DCHECK(MemoryRegionMap::LockIsHeld(), "");
+      // The only change to MemoryRegionMap possible in this loop
+      // is region addition as a result of allocating more memory
+      // for live_objects. This won't invalidate the RegionIterator
+      // or the intent of the loop.
+      // --see the comment by MemoryRegionMap::BeginRegionLocked().
+      for (MemoryRegionMap::RegionIterator region =
+             MemoryRegionMap::BeginRegionLocked();
+           region != MemoryRegionMap::EndRegionLocked(); ++region) {
+        // "region" from MemoryRegionMap is to be subtracted from
+        // (tentatively live) regions in l->second
+        // if it has a stack inside or it was allocated by
+        // a non-special caller (not one covered by a range
+        // in global_region_caller_ranges).
+        // This will in particular exclude all memory chunks used
+        // by the heap itself as well as what's been allocated with
+        // any allocator on top of mmap.
+        bool subtract = true;
+        if (!region->is_stack  &&  global_region_caller_ranges) {
+          if (region->caller() == static_cast(NULL)) {
+            have_null_region_callers = true;
+          } else {
+            GlobalRegionCallerRangeMap::const_iterator iter
+              = global_region_caller_ranges->upper_bound(region->caller());
+            if (iter != global_region_caller_ranges->end()) {
+              RAW_DCHECK(iter->first > region->caller(), "");
+              if (iter->second < region->caller()) {  // in special region
+                subtract = false;
+              }
+            }
+          }
+        }
+        if (subtract) {
+          // The loop puts the result of filtering l->second into live_objects:
+          for (LiveObjectsStack::const_iterator i = l->second.begin();
+               i != l->second.end(); ++i) {
+            // subtract *region from *i
+            uintptr_t start = AsInt(i->ptr);
+            uintptr_t end = start + i->size;
+            if (region->start_addr <= start  &&  end <= region->end_addr) {
+              // full deletion due to subsumption
+            } else if (start < region->start_addr  &&
+                       region->end_addr < end) {  // cutting-out split
+              live_objects->push_back(AllocObject(i->ptr,
+                                                  region->start_addr - start,
+                                                  IN_GLOBAL_DATA));
+              live_objects->push_back(AllocObject(AsPtr(region->end_addr),
+                                                  end - region->end_addr,
+                                                  IN_GLOBAL_DATA));
+            } else if (region->end_addr > start  &&
+                       region->start_addr <= start) {  // cut from start
+              live_objects->push_back(AllocObject(AsPtr(region->end_addr),
+                                                  end - region->end_addr,
+                                                  IN_GLOBAL_DATA));
+            } else if (region->start_addr > start  &&
+                       region->start_addr < end) {  // cut from end
+              live_objects->push_back(AllocObject(i->ptr,
+                                                  region->start_addr - start,
+                                                  IN_GLOBAL_DATA));
+            } else {  // pass: no intersection
+              live_objects->push_back(AllocObject(i->ptr, i->size,
+                                                  IN_GLOBAL_DATA));
+            }
+          }
+          // Move live_objects back into l->second
+          // for filtering by the next region.
+          live_objects->swap(l->second);
+          live_objects->clear();
+        }
+      }
+      // Now get and use live_objects from the final version of l->second:
+      if (VLOG_IS_ON(11)) {
+        for (LiveObjectsStack::const_iterator i = l->second.begin();
+             i != l->second.end(); ++i) {
+          RAW_VLOG(11, "Library live region at %p of %" PRIuPTR " bytes",
+                      i->ptr, i->size);
+        }
+      }
+      live_objects->swap(l->second);
+      IgnoreLiveObjectsLocked("in globals of\n  ", l->first.c_str());
+    }
+    if (have_null_region_callers) {
+      RAW_LOG(ERROR, "Have memory regions w/o callers: "
+                     "might report false leaks");
+    }
+    Allocator::DeleteAndNull(&library_live_objects);
+  }
+}
+
+// Callback for TCMalloc_ListAllProcessThreads in IgnoreAllLiveObjectsLocked below
+// to test/verify that we have just the one main thread, in which case
+// we can do everything in that main thread,
+// so that CPU profiler can collect all its samples.
+// Returns the number of threads in the process.
+static int IsOneThread(void* parameter, int num_threads,
+                       pid_t* thread_pids, va_list ap) {
+  if (num_threads != 1) {
+    RAW_LOG(WARNING, "Have threads: Won't CPU-profile the bulk of leak "
+                     "checking work happening in IgnoreLiveThreadsLocked!");
+  }
+  TCMalloc_ResumeAllProcessThreads(num_threads, thread_pids);
+  return num_threads;
+}
+
+// Dummy for IgnoreAllLiveObjectsLocked below.
+// Making it global helps with compiler warnings.
+static va_list dummy_ap;
+
+// static
+void HeapLeakChecker::IgnoreAllLiveObjectsLocked(const void* self_stack_top) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  RAW_CHECK(live_objects == NULL, "");
+  live_objects = new(Allocator::Allocate(sizeof(LiveObjectsStack)))
+                   LiveObjectsStack;
+  stack_tops = new(Allocator::Allocate(sizeof(StackTopSet))) StackTopSet;
+  // reset the counts
+  live_objects_total = 0;
+  live_bytes_total = 0;
+  // Reduce max_heap_object_size to FLAGS_heap_check_max_pointer_offset
+  // for the time of leak check.
+  // FLAGS_heap_check_max_pointer_offset caps max_heap_object_size
+  // to manage reasonably low chances of random bytes
+  // appearing to be pointing into large actually leaked heap objects.
+  const size_t old_max_heap_object_size = max_heap_object_size;
+  max_heap_object_size = (
+    FLAGS_heap_check_max_pointer_offset != -1
+    ? min(size_t(FLAGS_heap_check_max_pointer_offset), max_heap_object_size)
+    : max_heap_object_size);
+  // Record global data as live:
+  if (FLAGS_heap_check_ignore_global_live) {
+    library_live_objects =
+      new(Allocator::Allocate(sizeof(LibraryLiveObjectsStacks)))
+        LibraryLiveObjectsStacks;
+  }
+  // Ignore all thread stacks:
+  thread_listing_status = CALLBACK_NOT_STARTED;
+  bool need_to_ignore_non_thread_objects = true;
+  self_thread_pid = getpid();
+  self_thread_stack_top = self_stack_top;
+  if (FLAGS_heap_check_ignore_thread_live) {
+    // In case we are doing CPU profiling we'd like to do all the work
+    // in the main thread, not in the special thread created by
+    // TCMalloc_ListAllProcessThreads, so that CPU profiler can
+    // collect all its samples.  The machinery of
+    // TCMalloc_ListAllProcessThreads conflicts with the CPU profiler
+    // by also relying on signals and ::sigaction.  We can do this
+    // (run everything in the main thread) safely only if there's just
+    // the main thread itself in our process.  This variable reflects
+    // these two conditions:
+    bool want_and_can_run_in_main_thread =
+      ProfilingIsEnabledForAllThreads()  &&
+      TCMalloc_ListAllProcessThreads(NULL, IsOneThread) == 1;
+    // When the normal path of TCMalloc_ListAllProcessThreads below is taken,
+    // we fully suspend the threads right here before any liveness checking
+    // and keep them suspended for the whole time of liveness checking
+    // inside of the IgnoreLiveThreadsLocked callback.
+    // (The threads can't (de)allocate due to lock on the delete hook but
+    //  if not suspended they could still mess with the pointer
+    //  graph while we walk it).
+    int r = want_and_can_run_in_main_thread
+            ? IgnoreLiveThreadsLocked(NULL, 1, &self_thread_pid, dummy_ap)
+            : TCMalloc_ListAllProcessThreads(NULL, IgnoreLiveThreadsLocked);
+    need_to_ignore_non_thread_objects = r < 0;
+    if (r < 0) {
+      RAW_LOG(WARNING, "Thread finding failed with %d errno=%d", r, errno);
+      if (thread_listing_status == CALLBACK_COMPLETED) {
+        RAW_LOG(INFO, "Thread finding callback "
+                      "finished ok; hopefully everything is fine");
+        need_to_ignore_non_thread_objects = false;
+      } else if (thread_listing_status == CALLBACK_STARTED) {
+        RAW_LOG(FATAL, "Thread finding callback was "
+                       "interrupted or crashed; can't fix this");
+      } else {  // CALLBACK_NOT_STARTED
+        RAW_LOG(ERROR, "Could not find thread stacks. "
+                       "Will likely report false leak positives.");
+      }
+    } else if (r != 0) {
+      RAW_LOG(ERROR, "Thread stacks not found for %d threads. "
+                     "Will likely report false leak positives.", r);
+    } else {
+      RAW_VLOG(11, "Thread stacks appear to be found for all threads");
+    }
+  } else {
+    RAW_LOG(WARNING, "Not looking for thread stacks; "
+                     "objects reachable only from there "
+                     "will be reported as leaks");
+  }
+  // Do all other live data ignoring here if we did not do it
+  // within thread listing callback with all threads stopped.
+  if (need_to_ignore_non_thread_objects) {
+    if (FLAGS_heap_check_ignore_global_live) {
+      UseProcMapsLocked(RECORD_GLOBAL_DATA);
+    }
+    IgnoreNonThreadLiveObjectsLocked();
+  }
+  if (live_objects_total) {
+    RAW_VLOG(10, "Ignoring %" PRId64 " reachable objects of %" PRId64 " bytes",
+                live_objects_total, live_bytes_total);
+  }
+  // Free these: we made them here and heap_profile never saw them
+  Allocator::DeleteAndNull(&live_objects);
+  Allocator::DeleteAndNull(&stack_tops);
+  max_heap_object_size = old_max_heap_object_size;  // reset this var
+}
+
+// Alignment at which we should consider pointer positions
+// in IgnoreLiveObjectsLocked. Will normally use the value of
+// FLAGS_heap_check_pointer_source_alignment.
+static size_t pointer_source_alignment = kPointerSourceAlignment;
+// Global lock for HeapLeakChecker::DoNoLeaks
+// to protect pointer_source_alignment.
+static SpinLock alignment_checker_lock(SpinLock::LINKER_INITIALIZED);
+
+// This function changes the live bits in the heap_profile-table's state:
+// we only record the live objects to be skipped.
+//
+// When checking if a byte sequence points to a heap object we use
+// HeapProfileTable::FindInsideAlloc to handle both pointers to
+// the start and inside of heap-allocated objects.
+// The "inside" case needs to be checked to support
+// at least the following relatively common cases:
+// - C++ arrays allocated with new FooClass[size] for classes
+//   with destructors have their size recorded in a sizeof(int) field
+//   before the place normal pointers point to.
+// - basic_string<>-s for e.g. the C++ library of gcc 3.4
+//   have the meta-info in basic_string<...>::_Rep recorded
+//   before the place normal pointers point to.
+// - Multiple-inherited objects have their pointers when cast to
+//   different base classes pointing inside of the actually
+//   allocated object.
+// - Sometimes reachability pointers point to member objects of heap objects,
+//   and then those member objects point to the full heap object.
+// - Third party UnicodeString: it stores a 32-bit refcount
+//   (in both 32-bit and 64-bit binaries) as the first uint32
+//   in the allocated memory and a normal pointer points at
+//   the second uint32 behind the refcount.
+// By finding these additional objects here
+// we slightly increase the chance to mistake random memory bytes
+// for a pointer and miss a leak in a particular run of a binary.
+//
+/*static*/ void HeapLeakChecker::IgnoreLiveObjectsLocked(const char* name,
+                                                         const char* name2) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  int64 live_object_count = 0;
+  int64 live_byte_count = 0;
+  while (!live_objects->empty()) {
+    const char* object =
+      reinterpret_cast(live_objects->back().ptr);
+    size_t size = live_objects->back().size;
+    const ObjectPlacement place = live_objects->back().place;
+    live_objects->pop_back();
+    if (place == MUST_BE_ON_HEAP  &&  heap_profile->MarkAsLive(object)) {
+      live_object_count += 1;
+      live_byte_count += size;
+    }
+    RAW_VLOG(13, "Looking for heap pointers in %p of %zu bytes",
+                object, size);
+    const char* const whole_object = object;
+    size_t const whole_size = size;
+    // Try interpretting any byte sequence in object,size as a heap pointer:
+    const size_t remainder = AsInt(object) % pointer_source_alignment;
+    if (remainder) {
+      object += pointer_source_alignment - remainder;
+      if (size >= pointer_source_alignment - remainder) {
+        size -= pointer_source_alignment - remainder;
+      } else {
+        size = 0;
+      }
+    }
+    if (size < sizeof(void*)) continue;
+
+#ifdef NO_FRAME_POINTER
+    // Frame pointer omission requires us to use libunwind, which uses direct
+    // mmap and munmap system calls, and that needs special handling.
+    if (name2 == kUnnamedProcSelfMapEntry) {
+      static const uintptr_t page_mask = ~(getpagesize() - 1);
+      const uintptr_t addr = reinterpret_cast(object);
+      if ((addr & page_mask) == 0 && (size & page_mask) == 0) {
+        // This is an object we slurped from /proc/self/maps.
+        // It may or may not be readable at this point.
+        //
+        // In case all the above conditions made a mistake, and the object is
+        // not related to libunwind, we also verify that it's not readable
+        // before ignoring it.
+        if (msync(const_cast(object), size, MS_ASYNC) != 0) {
+          // Skip unreadable object, so we don't crash trying to sweep it.
+          RAW_VLOG(0, "Ignoring inaccessible object [%p, %p) "
+                   "(msync error %d (%s))",
+                   object, object + size, errno, strerror(errno));
+          continue;
+        }
+      }
+    }
+#endif
+
+    const char* const max_object = object + size - sizeof(void*);
+    while (object <= max_object) {
+      // potentially unaligned load:
+      const uintptr_t addr = *reinterpret_cast(object);
+      // Do fast check before the more expensive HaveOnHeapLocked lookup:
+      // this code runs for all memory words that are potentially pointers:
+      const bool can_be_on_heap =
+        // Order tests by the likelyhood of the test failing in 64/32 bit modes.
+        // Yes, this matters: we either lose 5..6% speed in 32 bit mode
+        // (which is already slower) or by a factor of 1.5..1.91 in 64 bit mode.
+        // After the alignment test got dropped the above performance figures
+        // must have changed; might need to revisit this.
+#if defined(__x86_64__)
+        addr <= max_heap_address  &&  // <= is for 0-sized object with max addr
+        min_heap_address <= addr;
+#else
+        min_heap_address <= addr  &&
+        addr <= max_heap_address;  // <= is for 0-sized object with max addr
+#endif
+      if (can_be_on_heap) {
+        const void* ptr = reinterpret_cast(addr);
+        // Too expensive (inner loop): manually uncomment when debugging:
+        // RAW_VLOG(17, "Trying pointer to %p at %p", ptr, object);
+        size_t object_size;
+        if (HaveOnHeapLocked(&ptr, &object_size)  &&
+            heap_profile->MarkAsLive(ptr)) {
+          // We take the (hopefully low) risk here of encountering by accident
+          // a byte sequence in memory that matches an address of
+          // a heap object which is in fact leaked.
+          // I.e. in very rare and probably not repeatable/lasting cases
+          // we might miss some real heap memory leaks.
+          RAW_VLOG(14, "Found pointer to %p of %zu bytes at %p "
+                      "inside %p of size %zu",
+                      ptr, object_size, object, whole_object, whole_size);
+          if (VLOG_IS_ON(15)) {
+            // log call stacks to help debug how come something is not a leak
+            HeapProfileTable::AllocInfo alloc;
+            if (!heap_profile->FindAllocDetails(ptr, &alloc)) {
+              RAW_LOG(FATAL, "FindAllocDetails failed on ptr %p", ptr);
+            }
+            RAW_LOG(INFO, "New live %p object's alloc stack:", ptr);
+            for (int i = 0; i < alloc.stack_depth; ++i) {
+              RAW_LOG(INFO, "  @ %p", alloc.call_stack[i]);
+            }
+          }
+          live_object_count += 1;
+          live_byte_count += object_size;
+          live_objects->push_back(AllocObject(ptr, object_size,
+                                              IGNORED_ON_HEAP));
+        }
+      }
+      object += pointer_source_alignment;
+    }
+  }
+  live_objects_total += live_object_count;
+  live_bytes_total += live_byte_count;
+  if (live_object_count) {
+    RAW_VLOG(10, "Removed %" PRId64 " live heap objects of %" PRId64 " bytes: %s%s",
+                live_object_count, live_byte_count, name, name2);
+  }
+}
+
+//----------------------------------------------------------------------
+// HeapLeakChecker leak check disabling components
+//----------------------------------------------------------------------
+
+// static
+void HeapLeakChecker::DisableChecksIn(const char* pattern) {
+  RAW_LOG(WARNING, "DisableChecksIn(%s) is ignored", pattern);
+}
+
+// static
+void HeapLeakChecker::DoIgnoreObject(const void* ptr) {
+  SpinLockHolder l(&heap_checker_lock);
+  if (!heap_checker_on) return;
+  size_t object_size;
+  if (!HaveOnHeapLocked(&ptr, &object_size)) {
+    RAW_LOG(ERROR, "No live heap object at %p to ignore", ptr);
+  } else {
+    RAW_VLOG(10, "Going to ignore live object at %p of %zu bytes",
+                ptr, object_size);
+    if (ignored_objects == NULL)  {
+      ignored_objects = new(Allocator::Allocate(sizeof(IgnoredObjectsMap)))
+                          IgnoredObjectsMap;
+    }
+    if (!ignored_objects->insert(make_pair(AsInt(ptr), object_size)).second) {
+      RAW_LOG(WARNING, "Object at %p is already being ignored", ptr);
+    }
+  }
+}
+
+// static
+void HeapLeakChecker::UnIgnoreObject(const void* ptr) {
+  SpinLockHolder l(&heap_checker_lock);
+  if (!heap_checker_on) return;
+  size_t object_size;
+  if (!HaveOnHeapLocked(&ptr, &object_size)) {
+    RAW_LOG(FATAL, "No live heap object at %p to un-ignore", ptr);
+  } else {
+    bool found = false;
+    if (ignored_objects) {
+      IgnoredObjectsMap::iterator object = ignored_objects->find(AsInt(ptr));
+      if (object != ignored_objects->end()  &&  object_size == object->second) {
+        ignored_objects->erase(object);
+        found = true;
+        RAW_VLOG(10, "Now not going to ignore live object "
+                    "at %p of %zu bytes", ptr, object_size);
+      }
+    }
+    if (!found)  RAW_LOG(FATAL, "Object at %p has not been ignored", ptr);
+  }
+}
+
+//----------------------------------------------------------------------
+// HeapLeakChecker non-static functions
+//----------------------------------------------------------------------
+
+char* HeapLeakChecker::MakeProfileNameLocked() {
+  RAW_DCHECK(lock_->IsHeld(), "");
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  const int len = profile_name_prefix->size() + strlen(name_) + 5 +
+                  strlen(HeapProfileTable::kFileExt) + 1;
+  char* file_name = reinterpret_cast(Allocator::Allocate(len));
+  snprintf(file_name, len, "%s.%s-end%s",
+           profile_name_prefix->c_str(), name_,
+           HeapProfileTable::kFileExt);
+  return file_name;
+}
+
+void HeapLeakChecker::Create(const char *name, bool make_start_snapshot) {
+  SpinLockHolder l(lock_);
+  name_ = NULL;  // checker is inactive
+  start_snapshot_ = NULL;
+  has_checked_ = false;
+  inuse_bytes_increase_ = 0;
+  inuse_allocs_increase_ = 0;
+  keep_profiles_ = false;
+  char* n = new char[strlen(name) + 1];   // do this before we lock
+  IgnoreObject(n);  // otherwise it might be treated as live due to our stack
+  { // Heap activity in other threads is paused for this whole scope.
+    SpinLockHolder al(&alignment_checker_lock);
+    SpinLockHolder hl(&heap_checker_lock);
+    MemoryRegionMap::LockHolder ml;
+    if (heap_checker_on  &&  profile_name_prefix != NULL) {
+      RAW_DCHECK(strchr(name, '/') == NULL, "must be a simple name");
+      memcpy(n, name, strlen(name) + 1);
+      name_ = n;  // checker is active
+      if (make_start_snapshot) {
+        start_snapshot_ = heap_profile->TakeSnapshot();
+      }
+
+      const HeapProfileTable::Stats& t = heap_profile->total();
+      const size_t start_inuse_bytes = t.alloc_size - t.free_size;
+      const size_t start_inuse_allocs = t.allocs - t.frees;
+      RAW_VLOG(10, "Start check \"%s\" profile: %zu bytes "
+               "in %zu objects",
+               name_, start_inuse_bytes, start_inuse_allocs);
+    } else {
+      RAW_LOG(WARNING, "Heap checker is not active, "
+                       "hence checker \"%s\" will do nothing!", name);
+    RAW_LOG(WARNING, "To activate set the HEAPCHECK environment variable.\n");
+    }
+  }
+  if (name_ == NULL) {
+    UnIgnoreObject(n);
+    delete[] n;  // must be done after we unlock
+  }
+}
+
+HeapLeakChecker::HeapLeakChecker(const char *name) : lock_(new SpinLock) {
+  RAW_DCHECK(strcmp(name, "_main_") != 0, "_main_ is reserved");
+  Create(name, true/*create start_snapshot_*/);
+}
+
+HeapLeakChecker::HeapLeakChecker() : lock_(new SpinLock) {
+  if (FLAGS_heap_check_before_constructors) {
+    // We want to check for leaks of objects allocated during global
+    // constructors (i.e., objects allocated already).  So we do not
+    // create a baseline snapshot and hence check for leaks of objects
+    // that may have already been created.
+    Create("_main_", false);
+  } else {
+    // We want to ignore leaks of objects allocated during global
+    // constructors (i.e., objects allocated already).  So we snapshot
+    // the current heap contents and use them as a baseline that is
+    // not reported by the leak checker.
+    Create("_main_", true);
+  }
+}
+
+ssize_t HeapLeakChecker::BytesLeaked() const {
+  SpinLockHolder l(lock_);
+  if (!has_checked_) {
+    RAW_LOG(FATAL, "*NoLeaks|SameHeap must execute before this call");
+  }
+  return inuse_bytes_increase_;
+}
+
+ssize_t HeapLeakChecker::ObjectsLeaked() const {
+  SpinLockHolder l(lock_);
+  if (!has_checked_) {
+    RAW_LOG(FATAL, "*NoLeaks|SameHeap must execute before this call");
+  }
+  return inuse_allocs_increase_;
+}
+
+// Save pid of main thread for using in naming dump files
+static int32 main_thread_pid = getpid();
+#ifdef HAVE_PROGRAM_INVOCATION_NAME
+#ifdef __UCLIBC__
+extern const char* program_invocation_name;
+extern const char* program_invocation_short_name;
+#else
+extern char* program_invocation_name;
+extern char* program_invocation_short_name;
+#endif
+static const char* invocation_name() { return program_invocation_short_name; }
+static string invocation_path() { return program_invocation_name; }
+#else
+static const char* invocation_name() { return ""; }
+static string invocation_path() { return ""; }
+#endif
+
+// Prints commands that users can run to get more information
+// about the reported leaks.
+static void SuggestPprofCommand(const char* pprof_file_arg) {
+  // Extra help information to print for the user when the test is
+  // being run in a way where the straightforward pprof command will
+  // not suffice.
+  string extra_help;
+
+  // Common header info to print for remote runs
+  const string remote_header =
+      "This program is being executed remotely and therefore the pprof\n"
+      "command printed above will not work.  Either run this program\n"
+      "locally, or adjust the pprof command as follows to allow it to\n"
+      "work on your local machine:\n";
+
+  // Extra command for fetching remote data
+  string fetch_cmd;
+
+  RAW_LOG(WARNING,
+          "\n\n"
+          "If the preceding stack traces are not enough to find "
+          "the leaks, try running THIS shell command:\n\n"
+          "%s%s %s \"%s\" --inuse_objects --lines --heapcheck "
+          " --edgefraction=1e-10 --nodefraction=1e-10 --gv\n"
+          "\n"
+          "%s"
+          "If you are still puzzled about why the leaks are "
+          "there, try rerunning this program with "
+          "HEAP_CHECK_TEST_POINTER_ALIGNMENT=1 and/or with "
+          "HEAP_CHECK_MAX_POINTER_OFFSET=-1\n"
+          "If the leak report occurs in a small fraction of runs, "
+          "try running with TCMALLOC_MAX_FREE_QUEUE_SIZE of few hundred MB "
+          "or with TCMALLOC_RECLAIM_MEMORY=false, "  // only works for debugalloc
+          "it might help find leaks more repeatably\n",
+          fetch_cmd.c_str(),
+          "pprof",           // works as long as pprof is on your path
+          invocation_path().c_str(),
+          pprof_file_arg,
+          extra_help.c_str()
+          );
+}
+
+bool HeapLeakChecker::DoNoLeaks(ShouldSymbolize should_symbolize) {
+  SpinLockHolder l(lock_);
+  // The locking also helps us keep the messages
+  // for the two checks close together.
+  SpinLockHolder al(&alignment_checker_lock);
+
+  // thread-safe: protected by alignment_checker_lock
+  static bool have_disabled_hooks_for_symbolize = false;
+  // Once we've checked for leaks and symbolized the results once, it's
+  // not safe to do it again.  This is because in order to symbolize
+  // safely, we had to disable all the malloc hooks here, so we no
+  // longer can be confident we've collected all the data we need.
+  if (have_disabled_hooks_for_symbolize) {
+    RAW_LOG(FATAL, "Must not call heap leak checker manually after "
+            " program-exit's automatic check.");
+  }
+
+  HeapProfileTable::Snapshot* leaks = NULL;
+  char* pprof_file = NULL;
+
+  {
+    // Heap activity in other threads is paused during this function
+    // (i.e. until we got all profile difference info).
+    SpinLockHolder hl(&heap_checker_lock);
+    if (heap_checker_on == false) {
+      if (name_ != NULL) {  // leak checking enabled when created the checker
+        RAW_LOG(WARNING, "Heap leak checker got turned off after checker "
+                "\"%s\" has been created, no leak check is being done for it!",
+                name_);
+      }
+      return true;
+    }
+
+    // Update global_region_caller_ranges. They may need to change since
+    // e.g. initialization because shared libraries might have been loaded or
+    // unloaded.
+    Allocator::DeleteAndNullIfNot(&global_region_caller_ranges);
+    ProcMapsResult pm_result = UseProcMapsLocked(DISABLE_LIBRARY_ALLOCS);
+    RAW_CHECK(pm_result == PROC_MAPS_USED, "");
+
+    // Keep track of number of internally allocated objects so we
+    // can detect leaks in the heap-leak-checket itself
+    const int initial_allocs = Allocator::alloc_count();
+
+    if (name_ == NULL) {
+      RAW_LOG(FATAL, "Heap leak checker must not be turned on "
+              "after construction of a HeapLeakChecker");
+    }
+
+    MemoryRegionMap::LockHolder ml;
+    int a_local_var;  // Use our stack ptr to make stack data live:
+
+    // Make the heap profile, other threads are locked out.
+    HeapProfileTable::Snapshot* base =
+        reinterpret_cast(start_snapshot_);
+    RAW_DCHECK(FLAGS_heap_check_pointer_source_alignment > 0, "");
+    pointer_source_alignment = FLAGS_heap_check_pointer_source_alignment;
+    IgnoreAllLiveObjectsLocked(&a_local_var);
+    leaks = heap_profile->NonLiveSnapshot(base);
+
+    inuse_bytes_increase_ = static_cast(leaks->total().alloc_size);
+    inuse_allocs_increase_ = static_cast(leaks->total().allocs);
+    if (leaks->Empty()) {
+      heap_profile->ReleaseSnapshot(leaks);
+      leaks = NULL;
+
+      // We can only check for internal leaks along the no-user-leak
+      // path since in the leak path we temporarily release
+      // heap_checker_lock and another thread can come in and disturb
+      // allocation counts.
+      if (Allocator::alloc_count() != initial_allocs) {
+        RAW_LOG(FATAL, "Internal HeapChecker leak of %d objects ; %d -> %d",
+                Allocator::alloc_count() - initial_allocs,
+                initial_allocs, Allocator::alloc_count());
+      }
+    } else if (FLAGS_heap_check_test_pointer_alignment) {
+      if (pointer_source_alignment == 1) {
+        RAW_LOG(WARNING, "--heap_check_test_pointer_alignment has no effect: "
+                "--heap_check_pointer_source_alignment was already set to 1");
+      } else {
+        // Try with reduced pointer aligment
+        pointer_source_alignment = 1;
+        IgnoreAllLiveObjectsLocked(&a_local_var);
+        HeapProfileTable::Snapshot* leaks_wo_align =
+            heap_profile->NonLiveSnapshot(base);
+        pointer_source_alignment = FLAGS_heap_check_pointer_source_alignment;
+        if (leaks_wo_align->Empty()) {
+          RAW_LOG(WARNING, "Found no leaks without pointer alignment: "
+                  "something might be placing pointers at "
+                  "unaligned addresses! This needs to be fixed.");
+        } else {
+          RAW_LOG(INFO, "Found leaks without pointer alignment as well: "
+                  "unaligned pointers must not be the cause of leaks.");
+          RAW_LOG(INFO, "--heap_check_test_pointer_alignment did not help "
+                  "to diagnose the leaks.");
+        }
+        heap_profile->ReleaseSnapshot(leaks_wo_align);
+      }
+    }
+
+    if (leaks != NULL) {
+      pprof_file = MakeProfileNameLocked();
+    }
+  }
+
+  has_checked_ = true;
+  if (leaks == NULL) {
+    if (FLAGS_heap_check_max_pointer_offset == -1) {
+      RAW_LOG(WARNING,
+              "Found no leaks without max_pointer_offset restriction: "
+              "it's possible that the default value of "
+              "heap_check_max_pointer_offset flag is too low. "
+              "Do you use pointers with larger than that offsets "
+              "pointing in the middle of heap-allocated objects?");
+    }
+    const HeapProfileTable::Stats& stats = heap_profile->total();
+    RAW_VLOG(heap_checker_info_level,
+             "No leaks found for check \"%s\" "
+             "(but no 100%% guarantee that there aren't any): "
+             "found %" PRId64 " reachable heap objects of %" PRId64 " bytes",
+             name_,
+             int64(stats.allocs - stats.frees),
+             int64(stats.alloc_size - stats.free_size));
+  } else {
+    if (should_symbolize == SYMBOLIZE) {
+      // To turn addresses into symbols, we need to fork, which is a
+      // problem if both parent and child end up trying to call the
+      // same malloc-hooks we've set up, at the same time.  To avoid
+      // trouble, we turn off the hooks before symbolizing.  Note that
+      // this makes it unsafe to ever leak-report again!  Luckily, we
+      // typically only want to report once in a program's run, at the
+      // very end.
+      if (MallocHook::GetNewHook() == NewHook)
+        MallocHook::SetNewHook(NULL);
+      if (MallocHook::GetDeleteHook() == DeleteHook)
+        MallocHook::SetDeleteHook(NULL);
+      MemoryRegionMap::Shutdown();
+      // Make sure all the hooks really got unset:
+      RAW_CHECK(MallocHook::GetNewHook() == NULL, "");
+      RAW_CHECK(MallocHook::GetDeleteHook() == NULL, "");
+      RAW_CHECK(MallocHook::GetMmapHook() == NULL, "");
+      RAW_CHECK(MallocHook::GetSbrkHook() == NULL, "");
+      have_disabled_hooks_for_symbolize = true;
+      leaks->ReportLeaks(name_, pprof_file, true);  // true = should_symbolize
+    } else {
+      leaks->ReportLeaks(name_, pprof_file, false);
+    }
+    if (FLAGS_heap_check_identify_leaks) {
+      leaks->ReportIndividualObjects();
+    }
+
+    SuggestPprofCommand(pprof_file);
+
+    {
+      SpinLockHolder hl(&heap_checker_lock);
+      heap_profile->ReleaseSnapshot(leaks);
+      Allocator::Free(pprof_file);
+    }
+  }
+
+  return (leaks == NULL);
+}
+
+HeapLeakChecker::~HeapLeakChecker() {
+  if (name_ != NULL) {  // had leak checking enabled when created the checker
+    if (!has_checked_) {
+      RAW_LOG(FATAL, "Some *NoLeaks|SameHeap method"
+                     " must be called on any created HeapLeakChecker");
+    }
+
+    // Deallocate any snapshot taken at start
+    if (start_snapshot_ != NULL) {
+      SpinLockHolder l(&heap_checker_lock);
+      heap_profile->ReleaseSnapshot(
+          reinterpret_cast(start_snapshot_));
+    }
+
+    UnIgnoreObject(name_);
+    delete[] name_;
+    name_ = NULL;
+  }
+  delete lock_;
+}
+
+//----------------------------------------------------------------------
+// HeapLeakChecker overall heap check components
+//----------------------------------------------------------------------
+
+// static
+bool HeapLeakChecker::IsActive() {
+  SpinLockHolder l(&heap_checker_lock);
+  return heap_checker_on;
+}
+
+vector* HeapCleaner::heap_cleanups_ = NULL;
+
+// When a HeapCleaner object is intialized, add its function to the static list
+// of cleaners to be run before leaks checking.
+HeapCleaner::HeapCleaner(void_function f) {
+  if (heap_cleanups_ == NULL)
+    heap_cleanups_ = new vector;
+  heap_cleanups_->push_back(f);
+}
+
+// Run all of the cleanup functions and delete the vector.
+void HeapCleaner::RunHeapCleanups() {
+  if (!heap_cleanups_)
+    return;
+  for (int i = 0; i < heap_cleanups_->size(); i++) {
+    void (*f)(void) = (*heap_cleanups_)[i];
+    f();
+  }
+  delete heap_cleanups_;
+  heap_cleanups_ = NULL;
+}
+
+// Program exit heap cleanup registered as a module object destructor.
+// Will not get executed when we crash on a signal.
+//
+void HeapLeakChecker_RunHeapCleanups() {
+  if (FLAGS_heap_check == "local")   // don't check heap in this mode
+    return;
+  { SpinLockHolder l(&heap_checker_lock);
+    // can get here (via forks?) with other pids
+    if (heap_checker_pid != getpid()) return;
+  }
+  HeapCleaner::RunHeapCleanups();
+  if (!FLAGS_heap_check_after_destructors) HeapLeakChecker::DoMainHeapCheck();
+}
+
+static bool internal_init_start_has_run = false;
+
+// Called exactly once, before main() (but hopefully just before).
+// This picks a good unique name for the dumped leak checking heap profiles.
+//
+// Because we crash when InternalInitStart is called more than once,
+// it's fine that we hold heap_checker_lock only around pieces of
+// this function: this is still enough for thread-safety w.r.t. other functions
+// of this module.
+// We can't hold heap_checker_lock throughout because it would deadlock
+// on a memory allocation since our new/delete hooks can be on.
+//
+void HeapLeakChecker_InternalInitStart() {
+  { SpinLockHolder l(&heap_checker_lock);
+    RAW_CHECK(!internal_init_start_has_run,
+              "Heap-check constructor called twice.  Perhaps you both linked"
+              " in the heap checker, and also used LD_PRELOAD to load it?");
+    internal_init_start_has_run = true;
+
+#ifdef ADDRESS_SANITIZER
+    // AddressSanitizer's custom malloc conflicts with HeapChecker.
+    FLAGS_heap_check = "";
+#endif
+
+    if (FLAGS_heap_check.empty()) {
+      // turns out we do not need checking in the end; can stop profiling
+      HeapLeakChecker::TurnItselfOffLocked();
+      return;
+    } else if (RunningOnValgrind()) {
+      // There is no point in trying -- we'll just fail.
+      RAW_LOG(WARNING, "Can't run under Valgrind; will turn itself off");
+      HeapLeakChecker::TurnItselfOffLocked();
+      return;
+    }
+  }
+
+  // Changing this to false can be useful when debugging heap-checker itself:
+  if (!FLAGS_heap_check_run_under_gdb && IsDebuggerAttached()) {
+    RAW_LOG(WARNING, "Someone is ptrace()ing us; will turn itself off");
+    SpinLockHolder l(&heap_checker_lock);
+    HeapLeakChecker::TurnItselfOffLocked();
+    return;
+  }
+
+  { SpinLockHolder l(&heap_checker_lock);
+    if (!constructor_heap_profiling) {
+      RAW_LOG(FATAL, "Can not start so late. You have to enable heap checking "
+	             "with HEAPCHECK=.");
+    }
+  }
+
+  // Set all flags
+  RAW_DCHECK(FLAGS_heap_check_pointer_source_alignment > 0, "");
+  if (FLAGS_heap_check == "minimal") {
+    // The least we can check.
+    FLAGS_heap_check_before_constructors = false;  // from after main
+                                                   // (ignore more)
+    FLAGS_heap_check_after_destructors = false;  // to after cleanup
+                                                 // (most data is live)
+    FLAGS_heap_check_ignore_thread_live = true;  // ignore all live
+    FLAGS_heap_check_ignore_global_live = true;  // ignore all live
+  } else if (FLAGS_heap_check == "normal") {
+    // Faster than 'minimal' and not much stricter.
+    FLAGS_heap_check_before_constructors = true;  // from no profile (fast)
+    FLAGS_heap_check_after_destructors = false;  // to after cleanup
+                                                 // (most data is live)
+    FLAGS_heap_check_ignore_thread_live = true;  // ignore all live
+    FLAGS_heap_check_ignore_global_live = true;  // ignore all live
+  } else if (FLAGS_heap_check == "strict") {
+    // A bit stricter than 'normal': global destructors must fully clean up
+    // after themselves if they are present.
+    FLAGS_heap_check_before_constructors = true;  // from no profile (fast)
+    FLAGS_heap_check_after_destructors = true;  // to after destructors
+                                                // (less data live)
+    FLAGS_heap_check_ignore_thread_live = true;  // ignore all live
+    FLAGS_heap_check_ignore_global_live = true;  // ignore all live
+  } else if (FLAGS_heap_check == "draconian") {
+    // Drop not very portable and not very exact live heap flooding.
+    FLAGS_heap_check_before_constructors = true;  // from no profile (fast)
+    FLAGS_heap_check_after_destructors = true;  // to after destructors
+                                                // (need them)
+    FLAGS_heap_check_ignore_thread_live = false;  // no live flood (stricter)
+    FLAGS_heap_check_ignore_global_live = false;  // no live flood (stricter)
+  } else if (FLAGS_heap_check == "as-is") {
+    // do nothing: use other flags as is
+  } else if (FLAGS_heap_check == "local") {
+    // do nothing
+  } else {
+    RAW_LOG(FATAL, "Unsupported heap_check flag: %s",
+                   FLAGS_heap_check.c_str());
+  }
+  // FreeBSD doesn't seem to honor atexit execution order:
+  //    http://code.google.com/p/gperftools/issues/detail?id=375
+  // Since heap-checking before destructors depends on atexit running
+  // at the right time, on FreeBSD we always check after, even in the
+  // less strict modes.  This just means FreeBSD is always a bit
+  // stricter in its checking than other OSes.
+  // This now appears to be the case in other OSes as well;
+  // so always check afterwards.
+  FLAGS_heap_check_after_destructors = true;
+
+  { SpinLockHolder l(&heap_checker_lock);
+    RAW_DCHECK(heap_checker_pid == getpid(), "");
+    heap_checker_on = true;
+    RAW_DCHECK(heap_profile, "");
+    HeapLeakChecker::ProcMapsResult pm_result = HeapLeakChecker::UseProcMapsLocked(HeapLeakChecker::DISABLE_LIBRARY_ALLOCS);
+      // might neeed to do this more than once
+      // if one later dynamically loads libraries that we want disabled
+    if (pm_result != HeapLeakChecker::PROC_MAPS_USED) {  // can't function
+      HeapLeakChecker::TurnItselfOffLocked();
+      return;
+    }
+  }
+
+  // make a good place and name for heap profile leak dumps
+  string* profile_prefix =
+    new string(FLAGS_heap_check_dump_directory + "/" + invocation_name());
+
+  // Finalize prefix for dumping leak checking profiles.
+  const int32 our_pid = getpid();   // safest to call getpid() outside lock
+  { SpinLockHolder l(&heap_checker_lock);
+    // main_thread_pid might still be 0 if this function is being called before
+    // global constructors.  In that case, our pid *is* the main pid.
+    if (main_thread_pid == 0)
+      main_thread_pid = our_pid;
+  }
+  char pid_buf[15];
+  snprintf(pid_buf, sizeof(pid_buf), ".%d", main_thread_pid);
+  *profile_prefix += pid_buf;
+  { SpinLockHolder l(&heap_checker_lock);
+    RAW_DCHECK(profile_name_prefix == NULL, "");
+    profile_name_prefix = profile_prefix;
+  }
+
+  // Make sure new/delete hooks are installed properly
+  // and heap profiler is indeed able to keep track
+  // of the objects being allocated.
+  // We test this to make sure we are indeed checking for leaks.
+  char* test_str = new char[5];
+  size_t size;
+  { SpinLockHolder l(&heap_checker_lock);
+    RAW_CHECK(heap_profile->FindAlloc(test_str, &size),
+              "our own new/delete not linked?");
+  }
+  delete[] test_str;
+  { SpinLockHolder l(&heap_checker_lock);
+    // This check can fail when it should not if another thread allocates
+    // into this same spot right this moment,
+    // which is unlikely since this code runs in InitGoogle.
+    RAW_CHECK(!heap_profile->FindAlloc(test_str, &size),
+              "our own new/delete not linked?");
+  }
+  // If we crash in the above code, it probably means that
+  // "nm  | grep new" will show that tcmalloc's new/delete
+  // implementation did not get linked-in into this binary
+  // (i.e. nm will list __builtin_new and __builtin_vec_new as undefined).
+  // If this happens, it is a BUILD bug to be fixed.
+
+  RAW_VLOG(heap_checker_info_level,
+           "WARNING: Perftools heap leak checker is active "
+           "-- Performance may suffer");
+
+  if (FLAGS_heap_check != "local") {
+    HeapLeakChecker* main_hc = new HeapLeakChecker();
+    SpinLockHolder l(&heap_checker_lock);
+    RAW_DCHECK(main_heap_checker == NULL,
+               "Repeated creation of main_heap_checker");
+    main_heap_checker = main_hc;
+    do_main_heap_check = true;
+  }
+
+  { SpinLockHolder l(&heap_checker_lock);
+    RAW_CHECK(heap_checker_on  &&  constructor_heap_profiling,
+              "Leak checking is expected to be fully turned on now");
+  }
+
+  // For binaries built in debug mode, this will set release queue of
+  // debugallocation.cc to 100M to make it less likely for real leaks to
+  // be hidden due to reuse of heap memory object addresses.
+  // Running a test with --malloc_reclaim_memory=0 would help find leaks even
+  // better, but the test might run out of memory as a result.
+  // The scenario is that a heap object at address X is allocated and freed,
+  // but some other data-structure still retains a pointer to X.
+  // Then the same heap memory is used for another object, which is leaked,
+  // but the leak is not noticed due to the pointer to the original object at X.
+  // TODO(csilvers): support this in some manner.
+#if 0
+  SetCommandLineOptionWithMode("max_free_queue_size", "104857600",  // 100M
+                               SET_FLAG_IF_DEFAULT);
+#endif
+}
+
+// We want this to run early as well, but not so early as
+// ::BeforeConstructors (we want flag assignments to have already
+// happened, for instance).  Initializer-registration does the trick.
+REGISTER_MODULE_INITIALIZER(init_start, HeapLeakChecker_InternalInitStart());
+REGISTER_MODULE_DESTRUCTOR(init_start, HeapLeakChecker_RunHeapCleanups());
+
+// static
+bool HeapLeakChecker::NoGlobalLeaksMaybeSymbolize(
+    ShouldSymbolize should_symbolize) {
+  // we never delete or change main_heap_checker once it's set:
+  HeapLeakChecker* main_hc = GlobalChecker();
+  if (main_hc) {
+    RAW_VLOG(10, "Checking for whole-program memory leaks");
+    return main_hc->DoNoLeaks(should_symbolize);
+  }
+  return true;
+}
+
+// static
+bool HeapLeakChecker::DoMainHeapCheck() {
+  if (FLAGS_heap_check_delay_seconds > 0) {
+    sleep(FLAGS_heap_check_delay_seconds);
+  }
+  { SpinLockHolder l(&heap_checker_lock);
+    if (!do_main_heap_check) return false;
+    RAW_DCHECK(heap_checker_pid == getpid(), "");
+    do_main_heap_check = false;  // will do it now; no need to do it more
+  }
+
+  // The program is over, so it's safe to symbolize addresses (which
+  // requires a fork) because no serious work is expected to be done
+  // after this.  Symbolizing is really useful -- knowing what
+  // function has a leak is better than knowing just an address --
+  // and while we can only safely symbolize once in a program run,
+  // now is the time (after all, there's no "later" that would be better).
+  if (!NoGlobalLeaksMaybeSymbolize(SYMBOLIZE)) {
+    if (FLAGS_heap_check_identify_leaks) {
+      RAW_LOG(FATAL, "Whole-program memory leaks found.");
+    }
+    RAW_LOG(ERROR, "Exiting with error code (instead of crashing) "
+                   "because of whole-program memory leaks");
+    _exit(1);    // we don't want to call atexit() routines!
+  }
+  return true;
+}
+
+// static
+HeapLeakChecker* HeapLeakChecker::GlobalChecker() {
+  SpinLockHolder l(&heap_checker_lock);
+  return main_heap_checker;
+}
+
+// static
+bool HeapLeakChecker::NoGlobalLeaks() {
+  // symbolizing requires a fork, which isn't safe to do in general.
+  return NoGlobalLeaksMaybeSymbolize(DO_NOT_SYMBOLIZE);
+}
+
+// static
+void HeapLeakChecker::CancelGlobalCheck() {
+  SpinLockHolder l(&heap_checker_lock);
+  if (do_main_heap_check) {
+    RAW_VLOG(heap_checker_info_level,
+             "Canceling the automatic at-exit whole-program memory leak check");
+    do_main_heap_check = false;
+  }
+}
+
+// static
+void HeapLeakChecker::BeforeConstructorsLocked() {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  RAW_CHECK(!constructor_heap_profiling,
+            "BeforeConstructorsLocked called multiple times");
+#ifdef ADDRESS_SANITIZER
+  // AddressSanitizer's custom malloc conflicts with HeapChecker.
+  return;
+#endif
+  // Set hooks early to crash if 'new' gets called before we make heap_profile,
+  // and make sure no other hooks existed:
+  RAW_CHECK(MallocHook::AddNewHook(&NewHook), "");
+  RAW_CHECK(MallocHook::AddDeleteHook(&DeleteHook), "");
+  constructor_heap_profiling = true;
+  MemoryRegionMap::Init(1, /* use_buckets */ false);
+    // Set up MemoryRegionMap with (at least) one caller stack frame to record
+    // (important that it's done before HeapProfileTable creation below).
+  Allocator::Init();
+  RAW_CHECK(heap_profile == NULL, "");
+  heap_profile = new(Allocator::Allocate(sizeof(HeapProfileTable)))
+      HeapProfileTable(&Allocator::Allocate, &Allocator::Free,
+                       /* profile_mmap */ false);
+  RAW_VLOG(10, "Starting tracking the heap");
+  heap_checker_on = true;
+}
+
+// static
+void HeapLeakChecker::TurnItselfOffLocked() {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  // Set FLAGS_heap_check to "", for users who test for it
+  if (!FLAGS_heap_check.empty())  // be a noop in the common case
+    FLAGS_heap_check.clear();     // because clear() could allocate memory
+  if (constructor_heap_profiling) {
+    RAW_CHECK(heap_checker_on, "");
+    RAW_VLOG(heap_checker_info_level, "Turning perftools heap leak checking off");
+    heap_checker_on = false;
+    // Unset our hooks checking they were set:
+    RAW_CHECK(MallocHook::RemoveNewHook(&NewHook), "");
+    RAW_CHECK(MallocHook::RemoveDeleteHook(&DeleteHook), "");
+    Allocator::DeleteAndNull(&heap_profile);
+    // free our optional global data:
+    Allocator::DeleteAndNullIfNot(&ignored_objects);
+    Allocator::DeleteAndNullIfNot(&disabled_ranges);
+    Allocator::DeleteAndNullIfNot(&global_region_caller_ranges);
+    Allocator::Shutdown();
+    MemoryRegionMap::Shutdown();
+  }
+  RAW_CHECK(!heap_checker_on, "");
+}
+
+extern bool heap_leak_checker_bcad_variable;  // in heap-checker-bcad.cc
+
+static bool has_called_before_constructors = false;
+
+// TODO(maxim): inline this function with
+// MallocHook_InitAtFirstAllocation_HeapLeakChecker, and also rename
+// HeapLeakChecker::BeforeConstructorsLocked.
+void HeapLeakChecker_BeforeConstructors() {
+  SpinLockHolder l(&heap_checker_lock);
+  // We can be called from several places: the first mmap/sbrk/alloc call
+  // or the first global c-tor from heap-checker-bcad.cc:
+  // Do not re-execute initialization:
+  if (has_called_before_constructors) return;
+  has_called_before_constructors = true;
+
+  heap_checker_pid = getpid();  // set it always
+  heap_leak_checker_bcad_variable = true;
+  // just to reference it, so that heap-checker-bcad.o is linked in
+
+  // This function can be called *very* early, before the normal
+  // global-constructor that sets FLAGS_verbose.  Set it manually now,
+  // so the RAW_LOG messages here are controllable.
+  const char* verbose_str = GetenvBeforeMain("PERFTOOLS_VERBOSE");
+  if (verbose_str && atoi(verbose_str)) {  // different than the default of 0?
+    FLAGS_verbose = atoi(verbose_str);
+  }
+
+  bool need_heap_check = true;
+  // The user indicates a desire for heap-checking via the HEAPCHECK
+  // environment variable.  If it's not set, there's no way to do
+  // heap-checking.
+  if (!GetenvBeforeMain("HEAPCHECK")) {
+    need_heap_check = false;
+  }
+#ifdef HAVE_GETEUID
+  if (need_heap_check && getuid() != geteuid()) {
+    // heap-checker writes out files.  Thus, for security reasons, we don't
+    // recognize the env. var. to turn on heap-checking if we're setuid.
+    RAW_LOG(WARNING, ("HeapChecker: ignoring HEAPCHECK because "
+                      "program seems to be setuid\n"));
+    need_heap_check = false;
+  }
+#endif
+  if (need_heap_check) {
+    HeapLeakChecker::BeforeConstructorsLocked();
+  }
+}
+
+// This function overrides the weak function defined in malloc_hook.cc and
+// called by one of the initial malloc hooks (malloc_hook.cc) when the very
+// first memory allocation or an mmap/sbrk happens.  This ensures that
+// HeapLeakChecker is initialized and installs all its hooks early enough to
+// track absolutely all memory allocations and all memory region acquisitions
+// via mmap and sbrk.
+extern "C" void MallocHook_InitAtFirstAllocation_HeapLeakChecker() {
+  HeapLeakChecker_BeforeConstructors();
+}
+
+// This function is executed after all global object destructors run.
+void HeapLeakChecker_AfterDestructors() {
+  { SpinLockHolder l(&heap_checker_lock);
+    // can get here (via forks?) with other pids
+    if (heap_checker_pid != getpid()) return;
+  }
+  if (FLAGS_heap_check_after_destructors) {
+    if (HeapLeakChecker::DoMainHeapCheck()) {
+      const struct timespec sleep_time = { 0, 500000000 };  // 500 ms
+      nanosleep(&sleep_time, NULL);
+        // Need this hack to wait for other pthreads to exit.
+        // Otherwise tcmalloc find errors
+        // on a free() call from pthreads.
+    }
+  }
+  SpinLockHolder l(&heap_checker_lock);
+  RAW_CHECK(!do_main_heap_check, "should have done it");
+}
+
+//----------------------------------------------------------------------
+// HeapLeakChecker disabling helpers
+//----------------------------------------------------------------------
+
+// These functions are at the end of the file to prevent their inlining:
+
+// static
+void HeapLeakChecker::DisableChecksFromToLocked(const void* start_address,
+                                                const void* end_address,
+                                                int max_depth) {
+  RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  RAW_DCHECK(start_address < end_address, "");
+  if (disabled_ranges == NULL) {
+    disabled_ranges = new(Allocator::Allocate(sizeof(DisabledRangeMap)))
+                        DisabledRangeMap;
+  }
+  RangeValue value;
+  value.start_address = AsInt(start_address);
+  value.max_depth = max_depth;
+  if (disabled_ranges->insert(make_pair(AsInt(end_address), value)).second) {
+    RAW_VLOG(10, "Disabling leak checking in stack traces "
+                "under frame addresses between %p..%p",
+                start_address, end_address);
+  } else {  // check that this is just a verbatim repetition
+    RangeValue const& val = disabled_ranges->find(AsInt(end_address))->second;
+    if (val.max_depth != value.max_depth  ||
+        val.start_address != value.start_address) {
+      RAW_LOG(FATAL, "Two DisableChecksToHereFrom calls conflict: "
+                     "(%p, %p, %d) vs. (%p, %p, %d)",
+                     AsPtr(val.start_address), end_address, val.max_depth,
+                     start_address, end_address, max_depth);
+    }
+  }
+}
+
+// static
+inline bool HeapLeakChecker::HaveOnHeapLocked(const void** ptr,
+                                              size_t* object_size) {
+  // Commented-out because HaveOnHeapLocked is very performance-critical:
+  // RAW_DCHECK(heap_checker_lock.IsHeld(), "");
+  const uintptr_t addr = AsInt(*ptr);
+  if (heap_profile->FindInsideAlloc(
+        *ptr, max_heap_object_size, ptr, object_size)) {
+    RAW_VLOG(16, "Got pointer into %p at +%" PRIuPTR " offset",
+             *ptr, addr - AsInt(*ptr));
+    return true;
+  }
+  return false;
+}
+
+// static
+const void* HeapLeakChecker::GetAllocCaller(void* ptr) {
+  // this is used only in the unittest, so the heavy checks are fine
+  HeapProfileTable::AllocInfo info;
+  { SpinLockHolder l(&heap_checker_lock);
+    RAW_CHECK(heap_profile->FindAllocDetails(ptr, &info), "");
+  }
+  RAW_CHECK(info.stack_depth >= 1, "");
+  return info.call_stack[0];
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/heap-profile-stats.h b/trunk/3rdparty/gperftools-2-fit/src/heap-profile-stats.h
new file mode 100644
index 000000000..1e0359a4d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/heap-profile-stats.h
@@ -0,0 +1,78 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2013, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This file defines structs to accumulate memory allocation and deallocation
+// counts.  These structs are commonly used for malloc (in HeapProfileTable)
+// and mmap (in MemoryRegionMap).
+
+// A bucket is data structure for heap profiling to store a pair of a stack
+// trace and counts of (de)allocation.  Buckets are stored in a hash table
+// which is declared as "HeapProfileBucket**".
+//
+// A hash value is computed from a stack trace.  Collision in the hash table
+// is resolved by separate chaining with linked lists.  The links in the list
+// are implemented with the member "HeapProfileBucket* next".
+//
+// A structure of a hash table HeapProfileBucket** bucket_table would be like:
+// bucket_table[0] => NULL
+// bucket_table[1] => HeapProfileBucket() => HeapProfileBucket() => NULL
+// ...
+// bucket_table[i] => HeapProfileBucket() => NULL
+// ...
+// bucket_table[n] => HeapProfileBucket() => NULL
+
+#ifndef HEAP_PROFILE_STATS_H_
+#define HEAP_PROFILE_STATS_H_
+
+struct HeapProfileStats {
+  // Returns true if the two HeapProfileStats are semantically equal.
+  bool Equivalent(const HeapProfileStats& other) const {
+    return allocs - frees == other.allocs - other.frees &&
+        alloc_size - free_size == other.alloc_size - other.free_size;
+  }
+
+  int32 allocs;      // Number of allocation calls.
+  int32 frees;       // Number of free calls.
+  int64 alloc_size;  // Total size of all allocated objects so far.
+  int64 free_size;   // Total size of all freed objects so far.
+};
+
+// Allocation and deallocation statistics per each stack trace.
+struct HeapProfileBucket : public HeapProfileStats {
+  // Longest stack trace we record.
+  static const int kMaxStackDepth = 32;
+
+  uintptr_t hash;           // Hash value of the stack trace.
+  int depth;                // Depth of stack trace.
+  const void** stack;       // Stack trace.
+  HeapProfileBucket* next;  // Next entry in hash-table.
+};
+
+#endif  // HEAP_PROFILE_STATS_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/heap-profile-table.cc b/trunk/3rdparty/gperftools-2-fit/src/heap-profile-table.cc
new file mode 100644
index 000000000..93d592c3b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/heap-profile-table.cc
@@ -0,0 +1,629 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//         Maxim Lifantsev (refactoring)
+//
+
+#include 
+
+#ifdef HAVE_UNISTD_H
+#include    // for write()
+#endif
+#include     // for open()
+#ifdef HAVE_GLOB_H
+#include 
+#ifndef GLOB_NOMATCH  // true on some old cygwins
+# define GLOB_NOMATCH 0
+#endif
+#endif
+#ifdef HAVE_INTTYPES_H
+#include  // for PRIxPTR
+#endif
+#ifdef HAVE_POLL_H
+#include 
+#endif
+#include 
+#include 
+#include 
+#include 
+#include   // for sort(), equal(), and copy()
+
+#include "heap-profile-table.h"
+
+#include "base/logging.h"
+#include "raw_printer.h"
+#include "symbolize.h"
+#include 
+#include 
+#include "memory_region_map.h"
+#include "base/commandlineflags.h"
+#include "base/logging.h"    // for the RawFD I/O commands
+#include "base/sysinfo.h"
+
+using std::sort;
+using std::equal;
+using std::copy;
+using std::string;
+using std::map;
+
+using tcmalloc::FillProcSelfMaps;   // from sysinfo.h
+using tcmalloc::DumpProcSelfMaps;   // from sysinfo.h
+
+//----------------------------------------------------------------------
+
+DEFINE_bool(cleanup_old_heap_profiles,
+            EnvToBool("HEAP_PROFILE_CLEANUP", true),
+            "At initialization time, delete old heap profiles.");
+
+DEFINE_int32(heap_check_max_leaks,
+             EnvToInt("HEAP_CHECK_MAX_LEAKS", 20),
+             "The maximum number of leak reports to print.");
+
+//----------------------------------------------------------------------
+
+// header of the dumped heap profile
+static const char kProfileHeader[] = "heap profile: ";
+static const char kProcSelfMapsHeader[] = "\nMAPPED_LIBRARIES:\n";
+
+//----------------------------------------------------------------------
+
+const char HeapProfileTable::kFileExt[] = ".heap";
+
+//----------------------------------------------------------------------
+
+static const int kHashTableSize = 179999;   // Size for bucket_table_.
+/*static*/ const int HeapProfileTable::kMaxStackDepth;
+
+//----------------------------------------------------------------------
+
+// We strip out different number of stack frames in debug mode
+// because less inlining happens in that case
+#ifdef NDEBUG
+static const int kStripFrames = 2;
+#else
+static const int kStripFrames = 3;
+#endif
+
+// For sorting Stats or Buckets by in-use space
+static bool ByAllocatedSpace(HeapProfileTable::Stats* a,
+                             HeapProfileTable::Stats* b) {
+  // Return true iff "a" has more allocated space than "b"
+  return (a->alloc_size - a->free_size) > (b->alloc_size - b->free_size);
+}
+
+//----------------------------------------------------------------------
+
+HeapProfileTable::HeapProfileTable(Allocator alloc,
+                                   DeAllocator dealloc,
+                                   bool profile_mmap)
+    : alloc_(alloc),
+      dealloc_(dealloc),
+      profile_mmap_(profile_mmap),
+      bucket_table_(NULL),
+      num_buckets_(0),
+      address_map_(NULL) {
+  // Make a hash table for buckets.
+  const int table_bytes = kHashTableSize * sizeof(*bucket_table_);
+  bucket_table_ = static_cast(alloc_(table_bytes));
+  memset(bucket_table_, 0, table_bytes);
+
+  // Make an allocation map.
+  address_map_ =
+      new(alloc_(sizeof(AllocationMap))) AllocationMap(alloc_, dealloc_);
+
+  // Initialize.
+  memset(&total_, 0, sizeof(total_));
+  num_buckets_ = 0;
+}
+
+HeapProfileTable::~HeapProfileTable() {
+  // Free the allocation map.
+  address_map_->~AllocationMap();
+  dealloc_(address_map_);
+  address_map_ = NULL;
+
+  // Free the hash table.
+  for (int i = 0; i < kHashTableSize; i++) {
+    for (Bucket* curr = bucket_table_[i]; curr != 0; /**/) {
+      Bucket* bucket = curr;
+      curr = curr->next;
+      dealloc_(bucket->stack);
+      dealloc_(bucket);
+    }
+  }
+  dealloc_(bucket_table_);
+  bucket_table_ = NULL;
+}
+
+HeapProfileTable::Bucket* HeapProfileTable::GetBucket(int depth,
+                                                      const void* const key[]) {
+  // Make hash-value
+  uintptr_t h = 0;
+  for (int i = 0; i < depth; i++) {
+    h += reinterpret_cast(key[i]);
+    h += h << 10;
+    h ^= h >> 6;
+  }
+  h += h << 3;
+  h ^= h >> 11;
+
+  // Lookup stack trace in table
+  unsigned int buck = ((unsigned int) h) % kHashTableSize;
+  for (Bucket* b = bucket_table_[buck]; b != 0; b = b->next) {
+    if ((b->hash == h) &&
+        (b->depth == depth) &&
+        equal(key, key + depth, b->stack)) {
+      return b;
+    }
+  }
+
+  // Create new bucket
+  const size_t key_size = sizeof(key[0]) * depth;
+  const void** kcopy = reinterpret_cast(alloc_(key_size));
+  copy(key, key + depth, kcopy);
+  Bucket* b = reinterpret_cast(alloc_(sizeof(Bucket)));
+  memset(b, 0, sizeof(*b));
+  b->hash  = h;
+  b->depth = depth;
+  b->stack = kcopy;
+  b->next  = bucket_table_[buck];
+  bucket_table_[buck] = b;
+  num_buckets_++;
+  return b;
+}
+
+int HeapProfileTable::GetCallerStackTrace(
+    int skip_count, void* stack[kMaxStackDepth]) {
+  return MallocHook::GetCallerStackTrace(
+      stack, kMaxStackDepth, kStripFrames + skip_count + 1);
+}
+
+void HeapProfileTable::RecordAlloc(
+    const void* ptr, size_t bytes, int stack_depth,
+    const void* const call_stack[]) {
+  Bucket* b = GetBucket(stack_depth, call_stack);
+  b->allocs++;
+  b->alloc_size += bytes;
+  total_.allocs++;
+  total_.alloc_size += bytes;
+
+  AllocValue v;
+  v.set_bucket(b);  // also did set_live(false); set_ignore(false)
+  v.bytes = bytes;
+  address_map_->Insert(ptr, v);
+}
+
+void HeapProfileTable::RecordFree(const void* ptr) {
+  AllocValue v;
+  if (address_map_->FindAndRemove(ptr, &v)) {
+    Bucket* b = v.bucket();
+    b->frees++;
+    b->free_size += v.bytes;
+    total_.frees++;
+    total_.free_size += v.bytes;
+  }
+}
+
+bool HeapProfileTable::FindAlloc(const void* ptr, size_t* object_size) const {
+  const AllocValue* alloc_value = address_map_->Find(ptr);
+  if (alloc_value != NULL) *object_size = alloc_value->bytes;
+  return alloc_value != NULL;
+}
+
+bool HeapProfileTable::FindAllocDetails(const void* ptr,
+                                        AllocInfo* info) const {
+  const AllocValue* alloc_value = address_map_->Find(ptr);
+  if (alloc_value != NULL) {
+    info->object_size = alloc_value->bytes;
+    info->call_stack = alloc_value->bucket()->stack;
+    info->stack_depth = alloc_value->bucket()->depth;
+  }
+  return alloc_value != NULL;
+}
+
+bool HeapProfileTable::FindInsideAlloc(const void* ptr,
+                                       size_t max_size,
+                                       const void** object_ptr,
+                                       size_t* object_size) const {
+  const AllocValue* alloc_value =
+    address_map_->FindInside(&AllocValueSize, max_size, ptr, object_ptr);
+  if (alloc_value != NULL) *object_size = alloc_value->bytes;
+  return alloc_value != NULL;
+}
+
+bool HeapProfileTable::MarkAsLive(const void* ptr) {
+  AllocValue* alloc = address_map_->FindMutable(ptr);
+  if (alloc && !alloc->live()) {
+    alloc->set_live(true);
+    return true;
+  }
+  return false;
+}
+
+void HeapProfileTable::MarkAsIgnored(const void* ptr) {
+  AllocValue* alloc = address_map_->FindMutable(ptr);
+  if (alloc) {
+    alloc->set_ignore(true);
+  }
+}
+
+// We'd be happier using snprintfer, but we don't to reduce dependencies.
+int HeapProfileTable::UnparseBucket(const Bucket& b,
+                                    char* buf, int buflen, int bufsize,
+                                    const char* extra,
+                                    Stats* profile_stats) {
+  if (profile_stats != NULL) {
+    profile_stats->allocs += b.allocs;
+    profile_stats->alloc_size += b.alloc_size;
+    profile_stats->frees += b.frees;
+    profile_stats->free_size += b.free_size;
+  }
+  int printed =
+    snprintf(buf + buflen, bufsize - buflen, "%6d: %8" PRId64 " [%6d: %8" PRId64 "] @%s",
+             b.allocs - b.frees,
+             b.alloc_size - b.free_size,
+             b.allocs,
+             b.alloc_size,
+             extra);
+  // If it looks like the snprintf failed, ignore the fact we printed anything
+  if (printed < 0 || printed >= bufsize - buflen) return buflen;
+  buflen += printed;
+  for (int d = 0; d < b.depth; d++) {
+    printed = snprintf(buf + buflen, bufsize - buflen, " 0x%08" PRIxPTR,
+                       reinterpret_cast(b.stack[d]));
+    if (printed < 0 || printed >= bufsize - buflen) return buflen;
+    buflen += printed;
+  }
+  printed = snprintf(buf + buflen, bufsize - buflen, "\n");
+  if (printed < 0 || printed >= bufsize - buflen) return buflen;
+  buflen += printed;
+  return buflen;
+}
+
+HeapProfileTable::Bucket**
+HeapProfileTable::MakeSortedBucketList() const {
+  Bucket** list = static_cast(alloc_(sizeof(Bucket) * num_buckets_));
+
+  int bucket_count = 0;
+  for (int i = 0; i < kHashTableSize; i++) {
+    for (Bucket* curr = bucket_table_[i]; curr != 0; curr = curr->next) {
+      list[bucket_count++] = curr;
+    }
+  }
+  RAW_DCHECK(bucket_count == num_buckets_, "");
+
+  sort(list, list + num_buckets_, ByAllocatedSpace);
+
+  return list;
+}
+
+void HeapProfileTable::IterateOrderedAllocContexts(
+    AllocContextIterator callback) const {
+  Bucket** list = MakeSortedBucketList();
+  AllocContextInfo info;
+  for (int i = 0; i < num_buckets_; ++i) {
+    *static_cast(&info) = *static_cast(list[i]);
+    info.stack_depth = list[i]->depth;
+    info.call_stack = list[i]->stack;
+    callback(info);
+  }
+  dealloc_(list);
+}
+
+int HeapProfileTable::FillOrderedProfile(char buf[], int size) const {
+  Bucket** list = MakeSortedBucketList();
+
+  // Our file format is "bucket, bucket, ..., bucket, proc_self_maps_info".
+  // In the cases buf is too small, we'd rather leave out the last
+  // buckets than leave out the /proc/self/maps info.  To ensure that,
+  // we actually print the /proc/self/maps info first, then move it to
+  // the end of the buffer, then write the bucket info into whatever
+  // is remaining, and then move the maps info one last time to close
+  // any gaps.  Whew!
+  int map_length = snprintf(buf, size, "%s", kProcSelfMapsHeader);
+  if (map_length < 0 || map_length >= size) {
+      dealloc_(list);
+      return 0;
+  }
+  bool dummy;   // "wrote_all" -- did /proc/self/maps fit in its entirety?
+  map_length += FillProcSelfMaps(buf + map_length, size - map_length, &dummy);
+  RAW_DCHECK(map_length <= size, "");
+  char* const map_start = buf + size - map_length;      // move to end
+  memmove(map_start, buf, map_length);
+  size -= map_length;
+
+  Stats stats;
+  memset(&stats, 0, sizeof(stats));
+  int bucket_length = snprintf(buf, size, "%s", kProfileHeader);
+  if (bucket_length < 0 || bucket_length >= size) {
+      dealloc_(list);
+      return 0;
+  }
+  bucket_length = UnparseBucket(total_, buf, bucket_length, size,
+                                " heapprofile", &stats);
+
+  // Dump the mmap list first.
+  if (profile_mmap_) {
+    BufferArgs buffer(buf, bucket_length, size);
+    MemoryRegionMap::IterateBuckets(DumpBucketIterator, &buffer);
+    bucket_length = buffer.buflen;
+  }
+
+  for (int i = 0; i < num_buckets_; i++) {
+    bucket_length = UnparseBucket(*list[i], buf, bucket_length, size, "",
+                                  &stats);
+  }
+  RAW_DCHECK(bucket_length < size, "");
+
+  dealloc_(list);
+
+  RAW_DCHECK(buf + bucket_length <= map_start, "");
+  memmove(buf + bucket_length, map_start, map_length);  // close the gap
+
+  return bucket_length + map_length;
+}
+
+// static
+void HeapProfileTable::DumpBucketIterator(const Bucket* bucket,
+                                          BufferArgs* args) {
+  args->buflen = UnparseBucket(*bucket, args->buf, args->buflen, args->bufsize,
+                               "", NULL);
+}
+
+inline
+void HeapProfileTable::DumpNonLiveIterator(const void* ptr, AllocValue* v,
+                                           const DumpArgs& args) {
+  if (v->live()) {
+    v->set_live(false);
+    return;
+  }
+  if (v->ignore()) {
+    return;
+  }
+  Bucket b;
+  memset(&b, 0, sizeof(b));
+  b.allocs = 1;
+  b.alloc_size = v->bytes;
+  b.depth = v->bucket()->depth;
+  b.stack = v->bucket()->stack;
+  char buf[1024];
+  int len = UnparseBucket(b, buf, 0, sizeof(buf), "", args.profile_stats);
+  RawWrite(args.fd, buf, len);
+}
+
+// Callback from NonLiveSnapshot; adds entry to arg->dest
+// if not the entry is not live and is not present in arg->base.
+void HeapProfileTable::AddIfNonLive(const void* ptr, AllocValue* v,
+                                    AddNonLiveArgs* arg) {
+  if (v->live()) {
+    v->set_live(false);
+  } else {
+    if (arg->base != NULL && arg->base->map_.Find(ptr) != NULL) {
+      // Present in arg->base, so do not save
+    } else {
+      arg->dest->Add(ptr, *v);
+    }
+  }
+}
+
+bool HeapProfileTable::WriteProfile(const char* file_name,
+                                    const Bucket& total,
+                                    AllocationMap* allocations) {
+  RAW_VLOG(1, "Dumping non-live heap profile to %s", file_name);
+  RawFD fd = RawOpenForWriting(file_name);
+  if (fd == kIllegalRawFD) {
+    RAW_LOG(ERROR, "Failed dumping filtered heap profile to %s", file_name);
+    return false;
+  }
+  RawWrite(fd, kProfileHeader, strlen(kProfileHeader));
+  char buf[512];
+  int len = UnparseBucket(total, buf, 0, sizeof(buf), " heapprofile", NULL);
+  RawWrite(fd, buf, len);
+  const DumpArgs args(fd, NULL);
+  allocations->Iterate(DumpNonLiveIterator, args);
+  RawWrite(fd, kProcSelfMapsHeader, strlen(kProcSelfMapsHeader));
+  DumpProcSelfMaps(fd);
+  RawClose(fd);
+  return true;
+}
+
+void HeapProfileTable::CleanupOldProfiles(const char* prefix) {
+  if (!FLAGS_cleanup_old_heap_profiles)
+    return;
+  string pattern = string(prefix) + ".*" + kFileExt;
+#if defined(HAVE_GLOB_H)
+  glob_t g;
+  const int r = glob(pattern.c_str(), GLOB_ERR, NULL, &g);
+  if (r == 0 || r == GLOB_NOMATCH) {
+    const int prefix_length = strlen(prefix);
+    for (int i = 0; i < g.gl_pathc; i++) {
+      const char* fname = g.gl_pathv[i];
+      if ((strlen(fname) >= prefix_length) &&
+          (memcmp(fname, prefix, prefix_length) == 0)) {
+        RAW_VLOG(1, "Removing old heap profile %s", fname);
+        unlink(fname);
+      }
+    }
+  }
+  globfree(&g);
+#else   /* HAVE_GLOB_H */
+  RAW_LOG(WARNING, "Unable to remove old heap profiles (can't run glob())");
+#endif
+}
+
+HeapProfileTable::Snapshot* HeapProfileTable::TakeSnapshot() {
+  Snapshot* s = new (alloc_(sizeof(Snapshot))) Snapshot(alloc_, dealloc_);
+  address_map_->Iterate(AddToSnapshot, s);
+  return s;
+}
+
+void HeapProfileTable::ReleaseSnapshot(Snapshot* s) {
+  s->~Snapshot();
+  dealloc_(s);
+}
+
+// Callback from TakeSnapshot; adds a single entry to snapshot
+void HeapProfileTable::AddToSnapshot(const void* ptr, AllocValue* v,
+                                     Snapshot* snapshot) {
+  snapshot->Add(ptr, *v);
+}
+
+HeapProfileTable::Snapshot* HeapProfileTable::NonLiveSnapshot(
+    Snapshot* base) {
+  RAW_VLOG(2, "NonLiveSnapshot input: %d %d\n",
+           int(total_.allocs - total_.frees),
+           int(total_.alloc_size - total_.free_size));
+
+  Snapshot* s = new (alloc_(sizeof(Snapshot))) Snapshot(alloc_, dealloc_);
+  AddNonLiveArgs args;
+  args.dest = s;
+  args.base = base;
+  address_map_->Iterate(AddIfNonLive, &args);
+  RAW_VLOG(2, "NonLiveSnapshot output: %d %d\n",
+           int(s->total_.allocs - s->total_.frees),
+           int(s->total_.alloc_size - s->total_.free_size));
+  return s;
+}
+
+// Information kept per unique bucket seen
+struct HeapProfileTable::Snapshot::Entry {
+  int count;
+  int bytes;
+  Bucket* bucket;
+  Entry() : count(0), bytes(0) { }
+
+  // Order by decreasing bytes
+  bool operator<(const Entry& x) const {
+    return this->bytes > x.bytes;
+  }
+};
+
+// State used to generate leak report.  We keep a mapping from Bucket pointer
+// the collected stats for that bucket.
+struct HeapProfileTable::Snapshot::ReportState {
+  map buckets_;
+};
+
+// Callback from ReportLeaks; updates ReportState.
+void HeapProfileTable::Snapshot::ReportCallback(const void* ptr,
+                                                AllocValue* v,
+                                                ReportState* state) {
+  Entry* e = &state->buckets_[v->bucket()]; // Creates empty Entry first time
+  e->bucket = v->bucket();
+  e->count++;
+  e->bytes += v->bytes;
+}
+
+void HeapProfileTable::Snapshot::ReportLeaks(const char* checker_name,
+                                             const char* filename,
+                                             bool should_symbolize) {
+  // This is only used by the heap leak checker, but is intimately
+  // tied to the allocation map that belongs in this module and is
+  // therefore placed here.
+  RAW_LOG(ERROR, "Leak check %s detected leaks of %zu bytes "
+          "in %zu objects",
+          checker_name,
+          size_t(total_.alloc_size),
+          size_t(total_.allocs));
+
+  // Group objects by Bucket
+  ReportState state;
+  map_.Iterate(&ReportCallback, &state);
+
+  // Sort buckets by decreasing leaked size
+  const int n = state.buckets_.size();
+  Entry* entries = new Entry[n];
+  int dst = 0;
+  for (map::const_iterator iter = state.buckets_.begin();
+       iter != state.buckets_.end();
+       ++iter) {
+    entries[dst++] = iter->second;
+  }
+  sort(entries, entries + n);
+
+  // Report a bounded number of leaks to keep the leak report from
+  // growing too long.
+  const int to_report =
+      (FLAGS_heap_check_max_leaks > 0 &&
+       n > FLAGS_heap_check_max_leaks) ? FLAGS_heap_check_max_leaks : n;
+  RAW_LOG(ERROR, "The %d largest leaks:", to_report);
+
+  // Print
+  SymbolTable symbolization_table;
+  for (int i = 0; i < to_report; i++) {
+    const Entry& e = entries[i];
+    for (int j = 0; j < e.bucket->depth; j++) {
+      symbolization_table.Add(e.bucket->stack[j]);
+    }
+  }
+  static const int kBufSize = 2<<10;
+  char buffer[kBufSize];
+  if (should_symbolize)
+    symbolization_table.Symbolize();
+  for (int i = 0; i < to_report; i++) {
+    const Entry& e = entries[i];
+    base::RawPrinter printer(buffer, kBufSize);
+    printer.Printf("Leak of %d bytes in %d objects allocated from:\n",
+                   e.bytes, e.count);
+    for (int j = 0; j < e.bucket->depth; j++) {
+      const void* pc = e.bucket->stack[j];
+      printer.Printf("\t@ %" PRIxPTR " %s\n",
+          reinterpret_cast(pc), symbolization_table.GetSymbol(pc));
+    }
+    RAW_LOG(ERROR, "%s", buffer);
+  }
+
+  if (to_report < n) {
+    RAW_LOG(ERROR, "Skipping leaks numbered %d..%d",
+            to_report, n-1);
+  }
+  delete[] entries;
+
+  // TODO: Dump the sorted Entry list instead of dumping raw data?
+  // (should be much shorter)
+  if (!HeapProfileTable::WriteProfile(filename, total_, &map_)) {
+    RAW_LOG(ERROR, "Could not write pprof profile to %s", filename);
+  }
+}
+
+void HeapProfileTable::Snapshot::ReportObject(const void* ptr,
+                                              AllocValue* v,
+                                              char* unused) {
+  // Perhaps also log the allocation stack trace (unsymbolized)
+  // on this line in case somebody finds it useful.
+  RAW_LOG(ERROR, "leaked %zu byte object %p", v->bytes, ptr);
+}
+
+void HeapProfileTable::Snapshot::ReportIndividualObjects() {
+  char unused;
+  map_.Iterate(ReportObject, &unused);
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/heap-profile-table.h b/trunk/3rdparty/gperftools-2-fit/src/heap-profile-table.h
new file mode 100644
index 000000000..afe13198b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/heap-profile-table.h
@@ -0,0 +1,399 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2006, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//         Maxim Lifantsev (refactoring)
+//
+
+#ifndef BASE_HEAP_PROFILE_TABLE_H_
+#define BASE_HEAP_PROFILE_TABLE_H_
+
+#include "addressmap-inl.h"
+#include "base/basictypes.h"
+#include "base/logging.h"   // for RawFD
+#include "heap-profile-stats.h"
+
+// Table to maintain a heap profile data inside,
+// i.e. the set of currently active heap memory allocations.
+// thread-unsafe and non-reentrant code:
+// each instance object must be used by one thread
+// at a time w/o self-recursion.
+//
+// TODO(maxim): add a unittest for this class.
+class HeapProfileTable {
+ public:
+
+  // Extension to be used for heap pforile files.
+  static const char kFileExt[];
+
+  // Longest stack trace we record.
+  static const int kMaxStackDepth = 32;
+
+  // data types ----------------------------
+
+  // Profile stats.
+  typedef HeapProfileStats Stats;
+
+  // Info we can return about an allocation.
+  struct AllocInfo {
+    size_t object_size;  // size of the allocation
+    const void* const* call_stack;  // call stack that made the allocation call
+    int stack_depth;  // depth of call_stack
+    bool live;
+    bool ignored;
+  };
+
+  // Info we return about an allocation context.
+  // An allocation context is a unique caller stack trace
+  // of an allocation operation.
+  struct AllocContextInfo : public Stats {
+    int stack_depth;                // Depth of stack trace
+    const void* const* call_stack;  // Stack trace
+  };
+
+  // Memory (de)allocator interface we'll use.
+  typedef void* (*Allocator)(size_t size);
+  typedef void  (*DeAllocator)(void* ptr);
+
+  // interface ---------------------------
+
+  HeapProfileTable(Allocator alloc, DeAllocator dealloc, bool profile_mmap);
+  ~HeapProfileTable();
+
+  // Collect the stack trace for the function that asked to do the
+  // allocation for passing to RecordAlloc() below.
+  //
+  // The stack trace is stored in 'stack'. The stack depth is returned.
+  //
+  // 'skip_count' gives the number of stack frames between this call
+  // and the memory allocation function.
+  static int GetCallerStackTrace(int skip_count, void* stack[kMaxStackDepth]);
+
+  // Record an allocation at 'ptr' of 'bytes' bytes.  'stack_depth'
+  // and 'call_stack' identifying the function that requested the
+  // allocation. They can be generated using GetCallerStackTrace() above.
+  void RecordAlloc(const void* ptr, size_t bytes,
+                   int stack_depth, const void* const call_stack[]);
+
+  // Record the deallocation of memory at 'ptr'.
+  void RecordFree(const void* ptr);
+
+  // Return true iff we have recorded an allocation at 'ptr'.
+  // If yes, fill *object_size with the allocation byte size.
+  bool FindAlloc(const void* ptr, size_t* object_size) const;
+  // Same as FindAlloc, but fills all of *info.
+  bool FindAllocDetails(const void* ptr, AllocInfo* info) const;
+
+  // Return true iff "ptr" points into a recorded allocation
+  // If yes, fill *object_ptr with the actual allocation address
+  // and *object_size with the allocation byte size.
+  // max_size specifies largest currently possible allocation size.
+  bool FindInsideAlloc(const void* ptr, size_t max_size,
+                       const void** object_ptr, size_t* object_size) const;
+
+  // If "ptr" points to a recorded allocation and it's not marked as live
+  // mark it as live and return true. Else return false.
+  // All allocations start as non-live.
+  bool MarkAsLive(const void* ptr);
+
+  // If "ptr" points to a recorded allocation, mark it as "ignored".
+  // Ignored objects are treated like other objects, except that they
+  // are skipped in heap checking reports.
+  void MarkAsIgnored(const void* ptr);
+
+  // Return current total (de)allocation statistics.  It doesn't contain
+  // mmap'ed regions.
+  const Stats& total() const { return total_; }
+
+  // Allocation data iteration callback: gets passed object pointer and
+  // fully-filled AllocInfo.
+  typedef void (*AllocIterator)(const void* ptr, const AllocInfo& info);
+
+  // Iterate over the allocation profile data calling "callback"
+  // for every allocation.
+  void IterateAllocs(AllocIterator callback) const {
+    address_map_->Iterate(MapArgsAllocIterator, callback);
+  }
+
+  // Allocation context profile data iteration callback
+  typedef void (*AllocContextIterator)(const AllocContextInfo& info);
+
+  // Iterate over the allocation context profile data calling "callback"
+  // for every allocation context. Allocation contexts are ordered by the
+  // size of allocated space.
+  void IterateOrderedAllocContexts(AllocContextIterator callback) const;
+
+  // Fill profile data into buffer 'buf' of size 'size'
+  // and return the actual size occupied by the dump in 'buf'.
+  // The profile buckets are dumped in the decreasing order
+  // of currently allocated bytes.
+  // We do not provision for 0-terminating 'buf'.
+  int FillOrderedProfile(char buf[], int size) const;
+
+  // Cleanup any old profile files matching prefix + ".*" + kFileExt.
+  static void CleanupOldProfiles(const char* prefix);
+
+  // Return a snapshot of the current contents of *this.
+  // Caller must call ReleaseSnapshot() on result when no longer needed.
+  // The result is only valid while this exists and until
+  // the snapshot is discarded by calling ReleaseSnapshot().
+  class Snapshot;
+  Snapshot* TakeSnapshot();
+
+  // Release a previously taken snapshot.  snapshot must not
+  // be used after this call.
+  void ReleaseSnapshot(Snapshot* snapshot);
+
+  // Return a snapshot of every non-live, non-ignored object in *this.
+  // If "base" is non-NULL, skip any objects present in "base".
+  // As a side-effect, clears the "live" bit on every live object in *this.
+  // Caller must call ReleaseSnapshot() on result when no longer needed.
+  Snapshot* NonLiveSnapshot(Snapshot* base);
+
+ private:
+
+  // data types ----------------------------
+
+  // Hash table bucket to hold (de)allocation stats
+  // for a given allocation call stack trace.
+  typedef HeapProfileBucket Bucket;
+
+  // Info stored in the address map
+  struct AllocValue {
+    // Access to the stack-trace bucket
+    Bucket* bucket() const {
+      return reinterpret_cast(bucket_rep & ~uintptr_t(kMask));
+    }
+    // This also does set_live(false).
+    void set_bucket(Bucket* b) { bucket_rep = reinterpret_cast(b); }
+    size_t  bytes;   // Number of bytes in this allocation
+
+    // Access to the allocation liveness flag (for leak checking)
+    bool live() const { return bucket_rep & kLive; }
+    void set_live(bool l) {
+      bucket_rep = (bucket_rep & ~uintptr_t(kLive)) | (l ? kLive : 0);
+    }
+
+    // Should this allocation be ignored if it looks like a leak?
+    bool ignore() const { return bucket_rep & kIgnore; }
+    void set_ignore(bool r) {
+      bucket_rep = (bucket_rep & ~uintptr_t(kIgnore)) | (r ? kIgnore : 0);
+    }
+
+   private:
+    // We store a few bits in the bottom bits of bucket_rep.
+    // (Alignment is at least four, so we have at least two bits.)
+    static const int kLive = 1;
+    static const int kIgnore = 2;
+    static const int kMask = kLive | kIgnore;
+
+    uintptr_t bucket_rep;
+  };
+
+  // helper for FindInsideAlloc
+  static size_t AllocValueSize(const AllocValue& v) { return v.bytes; }
+
+  typedef AddressMap AllocationMap;
+
+  // Arguments that need to be passed DumpBucketIterator callback below.
+  struct BufferArgs {
+    BufferArgs(char* buf_arg, int buflen_arg, int bufsize_arg)
+        : buf(buf_arg),
+          buflen(buflen_arg),
+          bufsize(bufsize_arg) {
+    }
+
+    char* buf;
+    int buflen;
+    int bufsize;
+
+    DISALLOW_COPY_AND_ASSIGN(BufferArgs);
+  };
+
+  // Arguments that need to be passed DumpNonLiveIterator callback below.
+  struct DumpArgs {
+    DumpArgs(RawFD fd_arg, Stats* profile_stats_arg)
+        : fd(fd_arg),
+          profile_stats(profile_stats_arg) {
+    }
+
+    RawFD fd;  // file to write to
+    Stats* profile_stats;  // stats to update (may be NULL)
+  };
+
+  // helpers ----------------------------
+
+  // Unparse bucket b and print its portion of profile dump into buf.
+  // We return the amount of space in buf that we use.  We start printing
+  // at buf + buflen, and promise not to go beyond buf + bufsize.
+  // We do not provision for 0-terminating 'buf'.
+  //
+  // If profile_stats is non-NULL, we update *profile_stats by
+  // counting bucket b.
+  //
+  // "extra" is appended to the unparsed bucket.  Typically it is empty,
+  // but may be set to something like " heapprofile" for the total
+  // bucket to indicate the type of the profile.
+  static int UnparseBucket(const Bucket& b,
+                           char* buf, int buflen, int bufsize,
+                           const char* extra,
+                           Stats* profile_stats);
+
+  // Get the bucket for the caller stack trace 'key' of depth 'depth'
+  // creating the bucket if needed.
+  Bucket* GetBucket(int depth, const void* const key[]);
+
+  // Helper for IterateAllocs to do callback signature conversion
+  // from AllocationMap::Iterate to AllocIterator.
+  static void MapArgsAllocIterator(const void* ptr, AllocValue* v,
+                                   AllocIterator callback) {
+    AllocInfo info;
+    info.object_size = v->bytes;
+    info.call_stack = v->bucket()->stack;
+    info.stack_depth = v->bucket()->depth;
+    info.live = v->live();
+    info.ignored = v->ignore();
+    callback(ptr, info);
+  }
+
+  // Helper to dump a bucket.
+  inline static void DumpBucketIterator(const Bucket* bucket,
+                                        BufferArgs* args);
+
+  // Helper for DumpNonLiveProfile to do object-granularity
+  // heap profile dumping. It gets passed to AllocationMap::Iterate.
+  inline static void DumpNonLiveIterator(const void* ptr, AllocValue* v,
+                                         const DumpArgs& args);
+
+  // Helper for IterateOrderedAllocContexts and FillOrderedProfile.
+  // Creates a sorted list of Buckets whose length is num_buckets_.
+  // The caller is responsible for deallocating the returned list.
+  Bucket** MakeSortedBucketList() const;
+
+  // Helper for TakeSnapshot.  Saves object to snapshot.
+  static void AddToSnapshot(const void* ptr, AllocValue* v, Snapshot* s);
+
+  // Arguments passed to AddIfNonLive
+  struct AddNonLiveArgs {
+    Snapshot* dest;
+    Snapshot* base;
+  };
+
+  // Helper for NonLiveSnapshot.  Adds the object to the destination
+  // snapshot if it is non-live.
+  static void AddIfNonLive(const void* ptr, AllocValue* v,
+                           AddNonLiveArgs* arg);
+
+  // Write contents of "*allocations" as a heap profile to
+  // "file_name".  "total" must contain the total of all entries in
+  // "*allocations".
+  static bool WriteProfile(const char* file_name,
+                           const Bucket& total,
+                           AllocationMap* allocations);
+
+  // data ----------------------------
+
+  // Memory (de)allocator that we use.
+  Allocator alloc_;
+  DeAllocator dealloc_;
+
+  // Overall profile stats; we use only the Stats part,
+  // but make it a Bucket to pass to UnparseBucket.
+  Bucket total_;
+
+  bool profile_mmap_;
+
+  // Bucket hash table for malloc.
+  // We hand-craft one instead of using one of the pre-written
+  // ones because we do not want to use malloc when operating on the table.
+  // It is only few lines of code, so no big deal.
+  Bucket** bucket_table_;
+  int num_buckets_;
+
+  // Map of all currently allocated objects and mapped regions we know about.
+  AllocationMap* address_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(HeapProfileTable);
+};
+
+class HeapProfileTable::Snapshot {
+ public:
+  const Stats& total() const { return total_; }
+
+  // Report anything in this snapshot as a leak.
+  // May use new/delete for temporary storage.
+  // If should_symbolize is true, will fork (which is not threadsafe)
+  // to turn addresses into symbol names.  Set to false for maximum safety.
+  // Also writes a heap profile to "filename" that contains
+  // all of the objects in this snapshot.
+  void ReportLeaks(const char* checker_name, const char* filename,
+                   bool should_symbolize);
+
+  // Report the addresses of all leaked objects.
+  // May use new/delete for temporary storage.
+  void ReportIndividualObjects();
+
+  bool Empty() const {
+    return (total_.allocs == 0) && (total_.alloc_size == 0);
+  }
+
+ private:
+  friend class HeapProfileTable;
+
+  // Total count/size are stored in a Bucket so we can reuse UnparseBucket
+  Bucket total_;
+
+  // We share the Buckets managed by the parent table, but have our
+  // own object->bucket map.
+  AllocationMap map_;
+
+  Snapshot(Allocator alloc, DeAllocator dealloc) : map_(alloc, dealloc) {
+    memset(&total_, 0, sizeof(total_));
+  }
+
+  // Callback used to populate a Snapshot object with entries found
+  // in another allocation map.
+  inline void Add(const void* ptr, const AllocValue& v) {
+    map_.Insert(ptr, v);
+    total_.allocs++;
+    total_.alloc_size += v.bytes;
+  }
+
+  // Helpers for sorting and generating leak reports
+  struct Entry;
+  struct ReportState;
+  static void ReportCallback(const void* ptr, AllocValue* v, ReportState*);
+  static void ReportObject(const void* ptr, AllocValue* v, char*);
+
+  DISALLOW_COPY_AND_ASSIGN(Snapshot);
+};
+
+#endif  // BASE_HEAP_PROFILE_TABLE_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/heap-profiler.cc b/trunk/3rdparty/gperftools-2-fit/src/heap-profiler.cc
new file mode 100644
index 000000000..47df77922
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/heap-profiler.cc
@@ -0,0 +1,622 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// TODO: Log large allocations
+
+#include 
+#include 
+#include 
+#include 
+#ifdef HAVE_UNISTD_H
+#include 
+#endif
+#ifdef HAVE_INTTYPES_H
+#include 
+#endif
+#ifdef HAVE_FCNTL_H
+#include     // for open()
+#endif
+#ifdef HAVE_MMAP
+#include 
+#endif
+#include 
+#include 
+#include 
+#include 
+
+#include 
+#include 
+
+#include 
+
+#include "base/logging.h"
+#include "base/basictypes.h"   // for PRId64, among other things
+#include "base/googleinit.h"
+#include "base/commandlineflags.h"
+#include "malloc_hook-inl.h"
+#include "tcmalloc_guard.h"
+#include 
+#include 
+#include "base/spinlock.h"
+#include "base/low_level_alloc.h"
+#include "base/sysinfo.h"      // for GetUniquePathFromEnv()
+#include "heap-profile-table.h"
+#include "memory_region_map.h"
+
+
+#ifndef	PATH_MAX
+#ifdef MAXPATHLEN
+#define	PATH_MAX	MAXPATHLEN
+#else
+#define	PATH_MAX	4096         // seems conservative for max filename len!
+#endif
+#endif
+
+using std::string;
+using std::sort;
+
+//----------------------------------------------------------------------
+// Flags that control heap-profiling
+//
+// The thread-safety of the profiler depends on these being immutable
+// after main starts, so don't change them.
+//----------------------------------------------------------------------
+
+DEFINE_int64(heap_profile_allocation_interval,
+             EnvToInt64("HEAP_PROFILE_ALLOCATION_INTERVAL", 1 << 30 /*1GB*/),
+             "If non-zero, dump heap profiling information once every "
+             "specified number of bytes allocated by the program since "
+             "the last dump.");
+DEFINE_int64(heap_profile_deallocation_interval,
+             EnvToInt64("HEAP_PROFILE_DEALLOCATION_INTERVAL", 0),
+             "If non-zero, dump heap profiling information once every "
+             "specified number of bytes deallocated by the program "
+             "since the last dump.");
+// We could also add flags that report whenever inuse_bytes changes by
+// X or -X, but there hasn't been a need for that yet, so we haven't.
+DEFINE_int64(heap_profile_inuse_interval,
+             EnvToInt64("HEAP_PROFILE_INUSE_INTERVAL", 100 << 20 /*100MB*/),
+             "If non-zero, dump heap profiling information whenever "
+             "the high-water memory usage mark increases by the specified "
+             "number of bytes.");
+DEFINE_int64(heap_profile_time_interval,
+             EnvToInt64("HEAP_PROFILE_TIME_INTERVAL", 0),
+             "If non-zero, dump heap profiling information once every "
+             "specified number of seconds since the last dump.");
+DEFINE_bool(mmap_log,
+            EnvToBool("HEAP_PROFILE_MMAP_LOG", false),
+            "Should mmap/munmap calls be logged?");
+DEFINE_bool(mmap_profile,
+            EnvToBool("HEAP_PROFILE_MMAP", false),
+            "If heap-profiling is on, also profile mmap, mremap, and sbrk)");
+DEFINE_bool(only_mmap_profile,
+            EnvToBool("HEAP_PROFILE_ONLY_MMAP", false),
+            "If heap-profiling is on, only profile mmap, mremap, and sbrk; "
+            "do not profile malloc/new/etc");
+
+
+//----------------------------------------------------------------------
+// Locking
+//----------------------------------------------------------------------
+
+// A pthread_mutex has way too much lock contention to be used here.
+//
+// I would like to use Mutex, but it can call malloc(),
+// which can cause us to fall into an infinite recursion.
+//
+// So we use a simple spinlock.
+static SpinLock heap_lock(SpinLock::LINKER_INITIALIZED);
+
+//----------------------------------------------------------------------
+// Simple allocator for heap profiler's internal memory
+//----------------------------------------------------------------------
+
+static LowLevelAlloc::Arena *heap_profiler_memory;
+
+static void* ProfilerMalloc(size_t bytes) {
+  return LowLevelAlloc::AllocWithArena(bytes, heap_profiler_memory);
+}
+static void ProfilerFree(void* p) {
+  LowLevelAlloc::Free(p);
+}
+
+// We use buffers of this size in DoGetHeapProfile.
+static const int kProfileBufferSize = 1 << 20;
+
+// This is a last-ditch buffer we use in DumpProfileLocked in case we
+// can't allocate more memory from ProfilerMalloc.  We expect this
+// will be used by HeapProfileEndWriter when the application has to
+// exit due to out-of-memory.  This buffer is allocated in
+// HeapProfilerStart.  Access to this must be protected by heap_lock.
+static char* global_profiler_buffer = NULL;
+
+
+//----------------------------------------------------------------------
+// Profiling control/state data
+//----------------------------------------------------------------------
+
+// Access to all of these is protected by heap_lock.
+static bool  is_on = false;           // If are on as a subsytem.
+static bool  dumping = false;         // Dumping status to prevent recursion
+static char* filename_prefix = NULL;  // Prefix used for profile file names
+                                      // (NULL if no need for dumping yet)
+static int   dump_count = 0;          // How many dumps so far
+static int64 last_dump_alloc = 0;     // alloc_size when did we last dump
+static int64 last_dump_free = 0;      // free_size when did we last dump
+static int64 high_water_mark = 0;     // In-use-bytes at last high-water dump
+static int64 last_dump_time = 0;      // The time of the last dump
+
+static HeapProfileTable* heap_profile = NULL;  // the heap profile table
+
+//----------------------------------------------------------------------
+// Profile generation
+//----------------------------------------------------------------------
+
+// Input must be a buffer of size at least 1MB.
+static char* DoGetHeapProfileLocked(char* buf, int buflen) {
+  // We used to be smarter about estimating the required memory and
+  // then capping it to 1MB and generating the profile into that.
+  if (buf == NULL || buflen < 1)
+    return NULL;
+
+  RAW_DCHECK(heap_lock.IsHeld(), "");
+  int bytes_written = 0;
+  if (is_on) {
+    HeapProfileTable::Stats const stats = heap_profile->total();
+    (void)stats;   // avoid an unused-variable warning in non-debug mode.
+    bytes_written = heap_profile->FillOrderedProfile(buf, buflen - 1);
+    // FillOrderedProfile should not reduce the set of active mmap-ed regions,
+    // hence MemoryRegionMap will let us remove everything we've added above:
+    RAW_DCHECK(stats.Equivalent(heap_profile->total()), "");
+    // if this fails, we somehow removed by FillOrderedProfile
+    // more than we have added.
+  }
+  buf[bytes_written] = '\0';
+  RAW_DCHECK(bytes_written == strlen(buf), "");
+
+  return buf;
+}
+
+extern "C" char* GetHeapProfile() {
+  // Use normal malloc: we return the profile to the user to free it:
+  char* buffer = reinterpret_cast(malloc(kProfileBufferSize));
+  SpinLockHolder l(&heap_lock);
+  return DoGetHeapProfileLocked(buffer, kProfileBufferSize);
+}
+
+// defined below
+static void NewHook(const void* ptr, size_t size);
+static void DeleteHook(const void* ptr);
+
+// Helper for HeapProfilerDump.
+static void DumpProfileLocked(const char* reason) {
+  RAW_DCHECK(heap_lock.IsHeld(), "");
+  RAW_DCHECK(is_on, "");
+  RAW_DCHECK(!dumping, "");
+
+  if (filename_prefix == NULL) return;  // we do not yet need dumping
+
+  dumping = true;
+
+  // Make file name
+  char file_name[1000];
+  dump_count++;
+  snprintf(file_name, sizeof(file_name), "%s.%04d%s",
+           filename_prefix, dump_count, HeapProfileTable::kFileExt);
+
+  // Dump the profile
+  RAW_VLOG(0, "Dumping heap profile to %s (%s)", file_name, reason);
+  // We must use file routines that don't access memory, since we hold
+  // a memory lock now.
+  RawFD fd = RawOpenForWriting(file_name);
+  if (fd == kIllegalRawFD) {
+    RAW_LOG(ERROR, "Failed dumping heap profile to %s", file_name);
+    dumping = false;
+    return;
+  }
+
+  // This case may be impossible, but it's best to be safe.
+  // It's safe to use the global buffer: we're protected by heap_lock.
+  if (global_profiler_buffer == NULL) {
+    global_profiler_buffer =
+        reinterpret_cast(ProfilerMalloc(kProfileBufferSize));
+  }
+
+  char* profile = DoGetHeapProfileLocked(global_profiler_buffer,
+                                         kProfileBufferSize);
+  RawWrite(fd, profile, strlen(profile));
+  RawClose(fd);
+
+  dumping = false;
+}
+
+//----------------------------------------------------------------------
+// Profile collection
+//----------------------------------------------------------------------
+
+// Dump a profile after either an allocation or deallocation, if
+// the memory use has changed enough since the last dump.
+static void MaybeDumpProfileLocked() {
+  if (!dumping) {
+    const HeapProfileTable::Stats& total = heap_profile->total();
+    const int64 inuse_bytes = total.alloc_size - total.free_size;
+    bool need_to_dump = false;
+    char buf[128];
+
+    if (FLAGS_heap_profile_allocation_interval > 0 &&
+        total.alloc_size >=
+        last_dump_alloc + FLAGS_heap_profile_allocation_interval) {
+      snprintf(buf, sizeof(buf), ("%" PRId64 " MB allocated cumulatively, "
+                                  "%" PRId64 " MB currently in use"),
+               total.alloc_size >> 20, inuse_bytes >> 20);
+      need_to_dump = true;
+    } else if (FLAGS_heap_profile_deallocation_interval > 0 &&
+               total.free_size >=
+               last_dump_free + FLAGS_heap_profile_deallocation_interval) {
+      snprintf(buf, sizeof(buf), ("%" PRId64 " MB freed cumulatively, "
+                                  "%" PRId64 " MB currently in use"),
+               total.free_size >> 20, inuse_bytes >> 20);
+      need_to_dump = true;
+    } else if (FLAGS_heap_profile_inuse_interval > 0 &&
+               inuse_bytes >
+               high_water_mark + FLAGS_heap_profile_inuse_interval) {
+      snprintf(buf, sizeof(buf), "%" PRId64 " MB currently in use",
+               inuse_bytes >> 20);
+      need_to_dump = true;
+    } else if (FLAGS_heap_profile_time_interval > 0 ) {
+      int64 current_time = time(NULL);
+      if (current_time - last_dump_time >=
+          FLAGS_heap_profile_time_interval) {
+        snprintf(buf, sizeof(buf), "%" PRId64 " sec since the last dump",
+                 current_time - last_dump_time);
+        need_to_dump = true;
+        last_dump_time = current_time;
+      }
+    }
+    if (need_to_dump) {
+      DumpProfileLocked(buf);
+
+      last_dump_alloc = total.alloc_size;
+      last_dump_free = total.free_size;
+      if (inuse_bytes > high_water_mark)
+        high_water_mark = inuse_bytes;
+    }
+  }
+}
+
+// Record an allocation in the profile.
+static void RecordAlloc(const void* ptr, size_t bytes, int skip_count) {
+  // Take the stack trace outside the critical section.
+  void* stack[HeapProfileTable::kMaxStackDepth];
+  int depth = HeapProfileTable::GetCallerStackTrace(skip_count + 1, stack);
+  SpinLockHolder l(&heap_lock);
+  if (is_on) {
+    heap_profile->RecordAlloc(ptr, bytes, depth, stack);
+    MaybeDumpProfileLocked();
+  }
+}
+
+// Record a deallocation in the profile.
+static void RecordFree(const void* ptr) {
+  SpinLockHolder l(&heap_lock);
+  if (is_on) {
+    heap_profile->RecordFree(ptr);
+    MaybeDumpProfileLocked();
+  }
+}
+
+//----------------------------------------------------------------------
+// Allocation/deallocation hooks for MallocHook
+//----------------------------------------------------------------------
+
+// static
+void NewHook(const void* ptr, size_t size) {
+  if (ptr != NULL) RecordAlloc(ptr, size, 0);
+}
+
+// static
+void DeleteHook(const void* ptr) {
+  if (ptr != NULL) RecordFree(ptr);
+}
+
+// TODO(jandrews): Re-enable stack tracing
+#ifdef TODO_REENABLE_STACK_TRACING
+static void RawInfoStackDumper(const char* message, void*) {
+  RAW_LOG(INFO, "%.*s", static_cast(strlen(message) - 1), message);
+  // -1 is to chop the \n which will be added by RAW_LOG
+}
+#endif
+
+static void MmapHook(const void* result, const void* start, size_t size,
+                     int prot, int flags, int fd, off_t offset) {
+  if (FLAGS_mmap_log) {  // log it
+    // We use PRIxPTR not just '%p' to avoid deadlocks
+    // in pretty-printing of NULL as "nil".
+    // TODO(maxim): instead should use a safe snprintf reimplementation
+    RAW_LOG(INFO,
+            "mmap(start=0x%" PRIxPTR ", len=%zu, prot=0x%x, flags=0x%x, "
+            "fd=%d, offset=0x%x) = 0x%" PRIxPTR "",
+            (uintptr_t) start, size, prot, flags, fd, (unsigned int) offset,
+            (uintptr_t) result);
+#ifdef TODO_REENABLE_STACK_TRACING
+    DumpStackTrace(1, RawInfoStackDumper, NULL);
+#endif
+  }
+}
+
+static void MremapHook(const void* result, const void* old_addr,
+                       size_t old_size, size_t new_size,
+                       int flags, const void* new_addr) {
+  if (FLAGS_mmap_log) {  // log it
+    // We use PRIxPTR not just '%p' to avoid deadlocks
+    // in pretty-printing of NULL as "nil".
+    // TODO(maxim): instead should use a safe snprintf reimplementation
+    RAW_LOG(INFO,
+            "mremap(old_addr=0x%" PRIxPTR ", old_size=%zu, "
+            "new_size=%zu, flags=0x%x, new_addr=0x%" PRIxPTR ") = "
+            "0x%" PRIxPTR "",
+            (uintptr_t) old_addr, old_size, new_size, flags,
+            (uintptr_t) new_addr, (uintptr_t) result);
+#ifdef TODO_REENABLE_STACK_TRACING
+    DumpStackTrace(1, RawInfoStackDumper, NULL);
+#endif
+  }
+}
+
+static void MunmapHook(const void* ptr, size_t size) {
+  if (FLAGS_mmap_log) {  // log it
+    // We use PRIxPTR not just '%p' to avoid deadlocks
+    // in pretty-printing of NULL as "nil".
+    // TODO(maxim): instead should use a safe snprintf reimplementation
+    RAW_LOG(INFO, "munmap(start=0x%" PRIxPTR ", len=%zu)",
+                  (uintptr_t) ptr, size);
+#ifdef TODO_REENABLE_STACK_TRACING
+    DumpStackTrace(1, RawInfoStackDumper, NULL);
+#endif
+  }
+}
+
+static void SbrkHook(const void* result, ptrdiff_t increment) {
+  if (FLAGS_mmap_log) {  // log it
+    RAW_LOG(INFO, "sbrk(inc=%zd) = 0x%" PRIxPTR "",
+                  increment, (uintptr_t) result);
+#ifdef TODO_REENABLE_STACK_TRACING
+    DumpStackTrace(1, RawInfoStackDumper, NULL);
+#endif
+  }
+}
+
+//----------------------------------------------------------------------
+// Starting/stopping/dumping
+//----------------------------------------------------------------------
+
+extern "C" void HeapProfilerStart(const char* prefix) {
+  SpinLockHolder l(&heap_lock);
+
+  if (is_on) return;
+
+  is_on = true;
+
+  RAW_VLOG(0, "Starting tracking the heap");
+
+  // This should be done before the hooks are set up, since it should
+  // call new, and we want that to be accounted for correctly.
+  MallocExtension::Initialize();
+
+  if (FLAGS_only_mmap_profile) {
+    FLAGS_mmap_profile = true;
+  }
+
+  if (FLAGS_mmap_profile) {
+    // Ask MemoryRegionMap to record all mmap, mremap, and sbrk
+    // call stack traces of at least size kMaxStackDepth:
+    MemoryRegionMap::Init(HeapProfileTable::kMaxStackDepth,
+                          /* use_buckets */ true);
+  }
+
+  if (FLAGS_mmap_log) {
+    // Install our hooks to do the logging:
+    RAW_CHECK(MallocHook::AddMmapHook(&MmapHook), "");
+    RAW_CHECK(MallocHook::AddMremapHook(&MremapHook), "");
+    RAW_CHECK(MallocHook::AddMunmapHook(&MunmapHook), "");
+    RAW_CHECK(MallocHook::AddSbrkHook(&SbrkHook), "");
+  }
+
+  heap_profiler_memory =
+    LowLevelAlloc::NewArena(0, LowLevelAlloc::DefaultArena());
+
+  // Reserve space now for the heap profiler, so we can still write a
+  // heap profile even if the application runs out of memory.
+  global_profiler_buffer =
+      reinterpret_cast(ProfilerMalloc(kProfileBufferSize));
+
+  heap_profile = new(ProfilerMalloc(sizeof(HeapProfileTable)))
+      HeapProfileTable(ProfilerMalloc, ProfilerFree, FLAGS_mmap_profile);
+
+  last_dump_alloc = 0;
+  last_dump_free = 0;
+  high_water_mark = 0;
+  last_dump_time = 0;
+
+  // We do not reset dump_count so if the user does a sequence of
+  // HeapProfilerStart/HeapProfileStop, we will get a continuous
+  // sequence of profiles.
+
+  if (FLAGS_only_mmap_profile == false) {
+    // Now set the hooks that capture new/delete and malloc/free.
+    RAW_CHECK(MallocHook::AddNewHook(&NewHook), "");
+    RAW_CHECK(MallocHook::AddDeleteHook(&DeleteHook), "");
+  }
+
+  // Copy filename prefix
+  RAW_DCHECK(filename_prefix == NULL, "");
+  const int prefix_length = strlen(prefix);
+  filename_prefix = reinterpret_cast(ProfilerMalloc(prefix_length + 1));
+  memcpy(filename_prefix, prefix, prefix_length);
+  filename_prefix[prefix_length] = '\0';
+}
+
+extern "C" int IsHeapProfilerRunning() {
+  SpinLockHolder l(&heap_lock);
+  return is_on ? 1 : 0;   // return an int, because C code doesn't have bool
+}
+
+extern "C" void HeapProfilerStop() {
+  SpinLockHolder l(&heap_lock);
+
+  if (!is_on) return;
+
+  if (FLAGS_only_mmap_profile == false) {
+    // Unset our new/delete hooks, checking they were set:
+    RAW_CHECK(MallocHook::RemoveNewHook(&NewHook), "");
+    RAW_CHECK(MallocHook::RemoveDeleteHook(&DeleteHook), "");
+  }
+  if (FLAGS_mmap_log) {
+    // Restore mmap/sbrk hooks, checking that our hooks were set:
+    RAW_CHECK(MallocHook::RemoveMmapHook(&MmapHook), "");
+    RAW_CHECK(MallocHook::RemoveMremapHook(&MremapHook), "");
+    RAW_CHECK(MallocHook::RemoveSbrkHook(&SbrkHook), "");
+    RAW_CHECK(MallocHook::RemoveMunmapHook(&MunmapHook), "");
+  }
+
+  // free profile
+  heap_profile->~HeapProfileTable();
+  ProfilerFree(heap_profile);
+  heap_profile = NULL;
+
+  // free output-buffer memory
+  ProfilerFree(global_profiler_buffer);
+
+  // free prefix
+  ProfilerFree(filename_prefix);
+  filename_prefix = NULL;
+
+  if (!LowLevelAlloc::DeleteArena(heap_profiler_memory)) {
+    RAW_LOG(FATAL, "Memory leak in HeapProfiler:");
+  }
+
+  if (FLAGS_mmap_profile) {
+    MemoryRegionMap::Shutdown();
+  }
+
+  is_on = false;
+}
+
+extern "C" void HeapProfilerDump(const char *reason) {
+  SpinLockHolder l(&heap_lock);
+  if (is_on && !dumping) {
+    DumpProfileLocked(reason);
+  }
+}
+
+// Signal handler that is registered when a user selectable signal
+// number is defined in the environment variable HEAPPROFILESIGNAL.
+static void HeapProfilerDumpSignal(int signal_number) {
+  (void)signal_number;
+  if (!heap_lock.TryLock()) {
+    return;
+  }
+  if (is_on && !dumping) {
+    DumpProfileLocked("signal");
+  }
+  heap_lock.Unlock();
+}
+
+
+//----------------------------------------------------------------------
+// Initialization/finalization code
+//----------------------------------------------------------------------
+
+// Initialization code
+static void HeapProfilerInit() {
+  // Everything after this point is for setting up the profiler based on envvar
+  char fname[PATH_MAX];
+  if (!GetUniquePathFromEnv("HEAPPROFILE", fname)) {
+    return;
+  }
+  // We do a uid check so we don't write out files in a setuid executable.
+#ifdef HAVE_GETEUID
+  if (getuid() != geteuid()) {
+    RAW_LOG(WARNING, ("HeapProfiler: ignoring HEAPPROFILE because "
+                      "program seems to be setuid\n"));
+    return;
+  }
+#endif
+
+  char *signal_number_str = getenv("HEAPPROFILESIGNAL");
+  if (signal_number_str != NULL) {
+    long int signal_number = strtol(signal_number_str, NULL, 10);
+    intptr_t old_signal_handler = reinterpret_cast(signal(signal_number, HeapProfilerDumpSignal));
+    if (old_signal_handler == reinterpret_cast(SIG_ERR)) {
+      RAW_LOG(FATAL, "Failed to set signal. Perhaps signal number %s is invalid\n", signal_number_str);
+    } else if (old_signal_handler == 0) {
+      RAW_LOG(INFO,"Using signal %d as heap profiling switch", signal_number);
+    } else {
+      RAW_LOG(FATAL, "Signal %d already in use\n", signal_number);
+    }
+  }
+
+  HeapProfileTable::CleanupOldProfiles(fname);
+
+  HeapProfilerStart(fname);
+}
+
+// class used for finalization -- dumps the heap-profile at program exit
+struct HeapProfileEndWriter {
+  ~HeapProfileEndWriter() {
+    char buf[128];
+    if (heap_profile) {
+      const HeapProfileTable::Stats& total = heap_profile->total();
+      const int64 inuse_bytes = total.alloc_size - total.free_size;
+
+      if ((inuse_bytes >> 20) > 0) {
+        snprintf(buf, sizeof(buf), ("Exiting, %" PRId64 " MB in use"),
+                 inuse_bytes >> 20);
+      } else if ((inuse_bytes >> 10) > 0) {
+        snprintf(buf, sizeof(buf), ("Exiting, %" PRId64 " kB in use"),
+                 inuse_bytes >> 10);
+      } else {
+        snprintf(buf, sizeof(buf), ("Exiting, %" PRId64 " bytes in use"),
+                 inuse_bytes);
+      }
+    } else {
+      snprintf(buf, sizeof(buf), ("Exiting"));
+    }
+    HeapProfilerDump(buf);
+  }
+};
+
+// We want to make sure tcmalloc is up and running before starting the profiler
+static const TCMallocGuard tcmalloc_initializer;
+REGISTER_MODULE_INITIALIZER(heapprofiler, HeapProfilerInit());
+static HeapProfileEndWriter heap_profile_end_writer;
diff --git a/trunk/3rdparty/gperftools-2-fit/src/internal_logging.cc b/trunk/3rdparty/gperftools-2-fit/src/internal_logging.cc
new file mode 100644
index 000000000..ca1c86ed7
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/internal_logging.cc
@@ -0,0 +1,192 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Sanjay Ghemawat 
+
+#include 
+#include "internal_logging.h"
+#include                      // for va_end, va_start
+#include                       // for vsnprintf, va_list, etc
+#include                      // for abort
+#include                      // for strlen, memcpy
+#ifdef HAVE_UNISTD_H
+#include     // for write()
+#endif
+
+#include 
+#include "base/logging.h"   // for perftools_vsnprintf
+#include "base/spinlock.h"              // for SpinLockHolder, SpinLock
+
+// Variables for storing crash output.  Allocated statically since we
+// may not be able to heap-allocate while crashing.
+static SpinLock crash_lock(base::LINKER_INITIALIZED);
+static bool crashed = false;
+static const int kStatsBufferSize = 16 << 10;
+static char stats_buffer[kStatsBufferSize] = { 0 };
+
+namespace tcmalloc {
+
+static void WriteMessage(const char* msg, int length) {
+  write(STDERR_FILENO, msg, length);
+}
+
+void (*log_message_writer)(const char* msg, int length) = WriteMessage;
+
+
+class Logger {
+ public:
+  bool Add(const LogItem& item);
+  bool AddStr(const char* str, int n);
+  bool AddNum(uint64_t num, int base);  // base must be 10 or 16.
+
+  static const int kBufSize = 200;
+  char* p_;
+  char* end_;
+  char buf_[kBufSize];
+};
+
+void Log(LogMode mode, const char* filename, int line,
+         LogItem a, LogItem b, LogItem c, LogItem d) {
+  Logger state;
+  state.p_ = state.buf_;
+  state.end_ = state.buf_ + sizeof(state.buf_);
+  state.AddStr(filename, strlen(filename))
+      && state.AddStr(":", 1)
+      && state.AddNum(line, 10)
+      && state.AddStr("]", 1)
+      && state.Add(a)
+      && state.Add(b)
+      && state.Add(c)
+      && state.Add(d);
+
+  // Teminate with newline
+  if (state.p_ >= state.end_) {
+    state.p_ = state.end_ - 1;
+  }
+  *state.p_ = '\n';
+  state.p_++;
+
+  int msglen = state.p_ - state.buf_;
+  if (mode == kLog) {
+    (*log_message_writer)(state.buf_, msglen);
+    return;
+  }
+
+  bool first_crash = false;
+  {
+    SpinLockHolder l(&crash_lock);
+    if (!crashed) {
+      crashed = true;
+      first_crash = true;
+    }
+  }
+
+  (*log_message_writer)(state.buf_, msglen);
+  if (first_crash && mode == kCrashWithStats) {
+    MallocExtension::instance()->GetStats(stats_buffer, kStatsBufferSize);
+    (*log_message_writer)(stats_buffer, strlen(stats_buffer));
+  }
+
+  abort();
+}
+
+bool Logger::Add(const LogItem& item) {
+  // Separate items with spaces
+  if (p_ < end_) {
+    *p_ = ' ';
+    p_++;
+  }
+
+  switch (item.tag_) {
+    case LogItem::kStr:
+      return AddStr(item.u_.str, strlen(item.u_.str));
+    case LogItem::kUnsigned:
+      return AddNum(item.u_.unum, 10);
+    case LogItem::kSigned:
+      if (item.u_.snum < 0) {
+        // The cast to uint64_t is intentionally before the negation
+        // so that we do not attempt to negate -2^63.
+        return AddStr("-", 1)
+            && AddNum(- static_cast(item.u_.snum), 10);
+      } else {
+        return AddNum(static_cast(item.u_.snum), 10);
+      }
+    case LogItem::kPtr:
+      return AddStr("0x", 2)
+          && AddNum(reinterpret_cast(item.u_.ptr), 16);
+    default:
+      return false;
+  }
+}
+
+bool Logger::AddStr(const char* str, int n) {
+  if (end_ - p_ < n) {
+    return false;
+  } else {
+    memcpy(p_, str, n);
+    p_ += n;
+    return true;
+  }
+}
+
+bool Logger::AddNum(uint64_t num, int base) {
+  static const char kDigits[] = "0123456789abcdef";
+  char space[22];  // more than enough for 2^64 in smallest supported base (10)
+  char* end = space + sizeof(space);
+  char* pos = end;
+  do {
+    pos--;
+    *pos = kDigits[num % base];
+    num /= base;
+  } while (num > 0 && pos > space);
+  return AddStr(pos, end - pos);
+}
+
+}  // end tcmalloc namespace
+
+void TCMalloc_Printer::printf(const char* format, ...) {
+  if (left_ > 0) {
+    va_list ap;
+    va_start(ap, format);
+    const int r = perftools_vsnprintf(buf_, left_, format, ap);
+    va_end(ap);
+    if (r < 0) {
+      // Perhaps an old glibc that returns -1 on truncation?
+      left_ = 0;
+    } else if (r > left_) {
+      // Truncation
+      left_ = 0;
+    } else {
+      left_ -= r;
+      buf_ += r;
+    }
+  }
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/internal_logging.h b/trunk/3rdparty/gperftools-2-fit/src/internal_logging.h
new file mode 100644
index 000000000..1b0468e0d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/internal_logging.h
@@ -0,0 +1,144 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+//
+// Internal logging and related utility routines.
+
+#ifndef TCMALLOC_INTERNAL_LOGGING_H_
+#define TCMALLOC_INTERNAL_LOGGING_H_
+
+#include 
+#include                      // for size_t
+#if defined HAVE_STDINT_H
+#include 
+#elif defined HAVE_INTTYPES_H
+#include 
+#else
+#include 
+#endif
+
+//-------------------------------------------------------------------
+// Utility routines
+//-------------------------------------------------------------------
+
+// Safe logging helper: we write directly to the stderr file
+// descriptor and avoid FILE buffering because that may invoke
+// malloc().
+//
+// Example:
+//   Log(kLog, __FILE__, __LINE__, "error", bytes);
+
+namespace tcmalloc {
+enum LogMode {
+  kLog,                       // Just print the message
+  kCrash,                     // Print the message and crash
+  kCrashWithStats             // Print the message, some stats, and crash
+};
+
+class Logger;
+
+// A LogItem holds any of the argument types that can be passed to Log()
+class LogItem {
+ public:
+  LogItem()                     : tag_(kEnd)      { }
+  LogItem(const char* v)        : tag_(kStr)      { u_.str = v; }
+  LogItem(int v)                : tag_(kSigned)   { u_.snum = v; }
+  LogItem(long v)               : tag_(kSigned)   { u_.snum = v; }
+  LogItem(long long v)          : tag_(kSigned)   { u_.snum = v; }
+  LogItem(unsigned int v)       : tag_(kUnsigned) { u_.unum = v; }
+  LogItem(unsigned long v)      : tag_(kUnsigned) { u_.unum = v; }
+  LogItem(unsigned long long v) : tag_(kUnsigned) { u_.unum = v; }
+  LogItem(const void* v)        : tag_(kPtr)      { u_.ptr = v; }
+ private:
+  friend class Logger;
+  enum Tag {
+    kStr,
+    kSigned,
+    kUnsigned,
+    kPtr,
+    kEnd
+  };
+  Tag tag_;
+  union {
+    const char* str;
+    const void* ptr;
+    int64_t snum;
+    uint64_t unum;
+  } u_;
+};
+
+extern PERFTOOLS_DLL_DECL void Log(LogMode mode, const char* filename, int line,
+                LogItem a, LogItem b = LogItem(),
+                LogItem c = LogItem(), LogItem d = LogItem());
+
+// Tests can override this function to collect logging messages.
+extern PERFTOOLS_DLL_DECL void (*log_message_writer)(const char* msg, int length);
+
+}  // end tcmalloc namespace
+
+// Like assert(), but executed even in NDEBUG mode
+#undef CHECK_CONDITION
+#define CHECK_CONDITION(cond)                                            \
+do {                                                                     \
+  if (!(cond)) {                                                         \
+    ::tcmalloc::Log(::tcmalloc::kCrash, __FILE__, __LINE__, #cond);      \
+  }                                                                      \
+} while (0)
+
+// Our own version of assert() so we can avoid hanging by trying to do
+// all kinds of goofy printing while holding the malloc lock.
+#ifndef NDEBUG
+#define ASSERT(cond) CHECK_CONDITION(cond)
+#else
+#define ASSERT(cond) ((void) 0)
+#endif
+
+// Print into buffer
+class TCMalloc_Printer {
+ private:
+  char* buf_;           // Where should we write next
+  int   left_;          // Space left in buffer (including space for \0)
+
+ public:
+  // REQUIRES: "length > 0"
+  TCMalloc_Printer(char* buf, int length) : buf_(buf), left_(length) {
+    buf[0] = '\0';
+  }
+
+  void printf(const char* format, ...)
+#ifdef HAVE___ATTRIBUTE__
+    __attribute__ ((__format__ (__printf__, 2, 3)))
+#endif
+;
+};
+
+#endif  // TCMALLOC_INTERNAL_LOGGING_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/libc_override.h b/trunk/3rdparty/gperftools-2-fit/src/libc_override.h
new file mode 100644
index 000000000..c981c3d59
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/libc_override.h
@@ -0,0 +1,99 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein 
+//
+// This .h file imports the code that causes tcmalloc to override libc
+// versions of malloc/free/new/delete/etc.  That is, it provides the
+// logic that makes it so calls to malloc(10) go through tcmalloc,
+// rather than the default (libc) malloc.
+//
+// This file also provides a method: ReplaceSystemAlloc(), that every
+// libc_override_*.h file it #includes is required to provide.  This
+// is called when first setting up tcmalloc -- that is, when a global
+// constructor in tcmalloc.cc is executed -- to do any initialization
+// work that may be required for this OS.  (Note we cannot entirely
+// control when tcmalloc is initialized, and the system may do some
+// mallocs and frees before this routine is called.)  It may be a
+// noop.
+//
+// Every libc has its own way of doing this, and sometimes the compiler
+// matters too, so we have a different file for each libc, and often
+// for different compilers and OS's.
+
+#ifndef TCMALLOC_LIBC_OVERRIDE_INL_H_
+#define TCMALLOC_LIBC_OVERRIDE_INL_H_
+
+#include 
+#ifdef HAVE_FEATURES_H
+#include    // for __GLIBC__
+#endif
+#include 
+
+#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1900)
+#define CPP_NOTHROW noexcept
+#define CPP_BADALLOC
+#else
+#define CPP_NOTHROW throw()
+#define CPP_BADALLOC throw(std::bad_alloc)
+#endif
+
+static void ReplaceSystemAlloc();  // defined in the .h files below
+
+// For windows, there are two ways to get tcmalloc.  If we're
+// patching, then src/windows/patch_function.cc will do the necessary
+// overriding here.  Otherwise, we doing the 'redefine' trick, where
+// we remove malloc/new/etc from mscvcrt.dll, and just need to define
+// them now.
+#if defined(_WIN32) && defined(WIN32_DO_PATCHING)
+void PatchWindowsFunctions();   // in src/windows/patch_function.cc
+static void ReplaceSystemAlloc() { PatchWindowsFunctions(); }
+
+#elif defined(_WIN32) && !defined(WIN32_DO_PATCHING)
+#include "libc_override_redefine.h"
+
+#elif defined(__APPLE__)
+#include "libc_override_osx.h"
+
+#elif defined(__GLIBC__)
+#include "libc_override_glibc.h"
+
+// Not all gcc systems necessarily support weak symbols, but all the
+// ones I know of do, so for now just assume they all do.
+#elif defined(__GNUC__)
+#include "libc_override_gcc_and_weak.h"
+
+#else
+#error Need to add support for your libc/OS here
+
+#endif
+
+#endif  // TCMALLOC_LIBC_OVERRIDE_INL_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/libc_override_gcc_and_weak.h b/trunk/3rdparty/gperftools-2-fit/src/libc_override_gcc_and_weak.h
new file mode 100644
index 000000000..bb99b6900
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/libc_override_gcc_and_weak.h
@@ -0,0 +1,244 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein 
+//
+// Used to override malloc routines on systems that define the
+// memory allocation routines to be weak symbols in their libc
+// (almost all unix-based systems are like this), on gcc, which
+// suppports the 'alias' attribute.
+
+#ifndef TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_
+#define TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_
+
+#ifdef HAVE_SYS_CDEFS_H
+#include     // for __THROW
+#endif
+#include 
+
+#include "getenv_safe.h" // TCMallocGetenvSafe
+#include "base/commandlineflags.h"
+
+#ifndef __THROW    // I guess we're not on a glibc-like system
+# define __THROW   // __THROW is just an optimization, so ok to make it ""
+#endif
+
+#ifndef __GNUC__
+# error libc_override_gcc_and_weak.h is for gcc distributions only.
+#endif
+
+#define ALIAS(tc_fn)   __attribute__ ((alias (#tc_fn), used))
+
+void* operator new(size_t size) CPP_BADALLOC  ALIAS(tc_new);
+void operator delete(void* p) CPP_NOTHROW     ALIAS(tc_delete);
+void* operator new[](size_t size) CPP_BADALLOC ALIAS(tc_newarray);
+void operator delete[](void* p) CPP_NOTHROW   ALIAS(tc_deletearray);
+void* operator new(size_t size, const std::nothrow_t& nt) CPP_NOTHROW
+                                              ALIAS(tc_new_nothrow);
+void* operator new[](size_t size, const std::nothrow_t& nt) CPP_NOTHROW
+                                              ALIAS(tc_newarray_nothrow);
+void operator delete(void* p, const std::nothrow_t& nt) CPP_NOTHROW
+                                              ALIAS(tc_delete_nothrow);
+void operator delete[](void* p, const std::nothrow_t& nt) CPP_NOTHROW
+                                              ALIAS(tc_deletearray_nothrow);
+
+#if defined(ENABLE_SIZED_DELETE)
+
+void operator delete(void *p, size_t size) CPP_NOTHROW
+    ALIAS(tc_delete_sized);
+void operator delete[](void *p, size_t size) CPP_NOTHROW
+    ALIAS(tc_deletearray_sized);
+
+#elif defined(ENABLE_DYNAMIC_SIZED_DELETE) && \
+  (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
+
+static void delegate_sized_delete(void *p, size_t s) {
+  (operator delete)(p);
+}
+
+static void delegate_sized_deletearray(void *p, size_t s) {
+  (operator delete[])(p);
+}
+
+extern "C" __attribute__((weak))
+int tcmalloc_sized_delete_enabled(void);
+
+static bool sized_delete_enabled(void) {
+  if (tcmalloc_sized_delete_enabled != 0) {
+    return !!tcmalloc_sized_delete_enabled();
+  }
+
+  const char *flag = TCMallocGetenvSafe("TCMALLOC_ENABLE_SIZED_DELETE");
+  return tcmalloc::commandlineflags::StringToBool(flag, false);
+}
+
+extern "C" {
+
+static void *resolve_delete_sized(void) {
+  if (sized_delete_enabled()) {
+    return reinterpret_cast(tc_delete_sized);
+  }
+  return reinterpret_cast(delegate_sized_delete);
+}
+
+static void *resolve_deletearray_sized(void) {
+  if (sized_delete_enabled()) {
+    return reinterpret_cast(tc_deletearray_sized);
+  }
+  return reinterpret_cast(delegate_sized_deletearray);
+}
+
+}
+
+void operator delete(void *p, size_t size) CPP_NOTHROW
+  __attribute__((ifunc("resolve_delete_sized")));
+void operator delete[](void *p, size_t size) CPP_NOTHROW
+  __attribute__((ifunc("resolve_deletearray_sized")));
+
+#else /* !ENABLE_SIZED_DELETE && !ENABLE_DYN_SIZED_DELETE */
+
+void operator delete(void *p, size_t size) CPP_NOTHROW
+  ALIAS(tc_delete_sized);
+void operator delete[](void *p, size_t size) CPP_NOTHROW
+  ALIAS(tc_deletearray_sized);
+
+#endif /* !ENABLE_SIZED_DELETE && !ENABLE_DYN_SIZED_DELETE */
+
+#if defined(ENABLE_ALIGNED_NEW_DELETE)
+
+void* operator new(size_t size, std::align_val_t al)
+    ALIAS(tc_new_aligned);
+void operator delete(void* p, std::align_val_t al) CPP_NOTHROW
+    ALIAS(tc_delete_aligned);
+void* operator new[](size_t size, std::align_val_t al)
+    ALIAS(tc_newarray_aligned);
+void operator delete[](void* p, std::align_val_t al) CPP_NOTHROW
+    ALIAS(tc_deletearray_aligned);
+void* operator new(size_t size, std::align_val_t al, const std::nothrow_t& nt) CPP_NOTHROW
+    ALIAS(tc_new_aligned_nothrow);
+void* operator new[](size_t size, std::align_val_t al, const std::nothrow_t& nt) CPP_NOTHROW
+    ALIAS(tc_newarray_aligned_nothrow);
+void operator delete(void* p, std::align_val_t al, const std::nothrow_t& nt) CPP_NOTHROW
+    ALIAS(tc_delete_aligned_nothrow);
+void operator delete[](void* p, std::align_val_t al, const std::nothrow_t& nt) CPP_NOTHROW
+    ALIAS(tc_deletearray_aligned_nothrow);
+
+#if defined(ENABLE_SIZED_DELETE)
+
+void operator delete(void *p, size_t size, std::align_val_t al) CPP_NOTHROW
+    ALIAS(tc_delete_sized_aligned);
+void operator delete[](void *p, size_t size, std::align_val_t al) CPP_NOTHROW
+    ALIAS(tc_deletearray_sized_aligned);
+
+#else /* defined(ENABLE_SIZED_DELETE) */
+
+#if defined(ENABLE_DYNAMIC_SIZED_DELETE) && \
+  (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
+
+static void delegate_sized_aligned_delete(void *p, size_t s, std::align_val_t al) {
+  (operator delete)(p, al);
+}
+
+static void delegate_sized_aligned_deletearray(void *p, size_t s, std::align_val_t al) {
+  (operator delete[])(p, al);
+}
+
+extern "C" {
+
+static void *resolve_delete_sized_aligned(void) {
+  if (sized_delete_enabled()) {
+    return reinterpret_cast(tc_delete_sized_aligned);
+  }
+  return reinterpret_cast(delegate_sized_aligned_delete);
+}
+
+static void *resolve_deletearray_sized_aligned(void) {
+  if (sized_delete_enabled()) {
+    return reinterpret_cast(tc_deletearray_sized_aligned);
+  }
+  return reinterpret_cast(delegate_sized_aligned_deletearray);
+}
+
+}
+
+void operator delete(void *p, size_t size, std::align_val_t al) CPP_NOTHROW
+  __attribute__((ifunc("resolve_delete_sized_aligned")));
+void operator delete[](void *p, size_t size, std::align_val_t al) CPP_NOTHROW
+  __attribute__((ifunc("resolve_deletearray_sized_aligned")));
+
+#else /* defined(ENABLE_DYN_SIZED_DELETE) */
+
+void operator delete(void *p, size_t size, std::align_val_t al) CPP_NOTHROW
+  ALIAS(tc_delete_sized_aligned);
+void operator delete[](void *p, size_t size, std::align_val_t al) CPP_NOTHROW
+  ALIAS(tc_deletearray_sized_aligned);
+
+#endif /* defined(ENABLE_DYN_SIZED_DELETE) */
+
+#endif /* defined(ENABLE_SIZED_DELETE) */
+
+#endif /* defined(ENABLE_ALIGNED_NEW_DELETE) */
+
+extern "C" {
+  void* malloc(size_t size) __THROW               ALIAS(tc_malloc);
+  void free(void* ptr) __THROW                    ALIAS(tc_free);
+  void* realloc(void* ptr, size_t size) __THROW   ALIAS(tc_realloc);
+  void* calloc(size_t n, size_t size) __THROW     ALIAS(tc_calloc);
+  void cfree(void* ptr) __THROW                   ALIAS(tc_cfree);
+  void* memalign(size_t align, size_t s) __THROW  ALIAS(tc_memalign);
+  void* aligned_alloc(size_t align, size_t s) __THROW ALIAS(tc_memalign);
+  void* valloc(size_t size) __THROW               ALIAS(tc_valloc);
+  void* pvalloc(size_t size) __THROW              ALIAS(tc_pvalloc);
+  int posix_memalign(void** r, size_t a, size_t s) __THROW
+      ALIAS(tc_posix_memalign);
+#ifndef __UCLIBC__
+  void malloc_stats(void) __THROW                 ALIAS(tc_malloc_stats);
+#endif
+  int mallopt(int cmd, int value) __THROW         ALIAS(tc_mallopt);
+#ifdef HAVE_STRUCT_MALLINFO
+  struct mallinfo mallinfo(void) __THROW          ALIAS(tc_mallinfo);
+#endif
+  size_t malloc_size(void* p) __THROW             ALIAS(tc_malloc_size);
+#if defined(__ANDROID__)
+  size_t malloc_usable_size(const void* p) __THROW
+         ALIAS(tc_malloc_size);
+#else
+  size_t malloc_usable_size(void* p) __THROW      ALIAS(tc_malloc_size);
+#endif
+}   // extern "C"
+
+#undef ALIAS
+
+// No need to do anything at tcmalloc-registration time: we do it all
+// via overriding weak symbols (at link time).
+static void ReplaceSystemAlloc() { }
+
+#endif  // TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/libc_override_glibc.h b/trunk/3rdparty/gperftools-2-fit/src/libc_override_glibc.h
new file mode 100644
index 000000000..32692132a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/libc_override_glibc.h
@@ -0,0 +1,92 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein 
+//
+// Used to override malloc routines on systems that are using glibc.
+
+#ifndef TCMALLOC_LIBC_OVERRIDE_GLIBC_INL_H_
+#define TCMALLOC_LIBC_OVERRIDE_GLIBC_INL_H_
+
+#include 
+#include      // for __GLIBC__
+#include 
+
+#ifndef __GLIBC__
+# error libc_override_glibc.h is for glibc distributions only.
+#endif
+
+// In glibc, the memory-allocation methods are weak symbols, so we can
+// just override them with our own.  If we're using gcc, we can use
+// __attribute__((alias)) to do the overriding easily (exception:
+// Mach-O, which doesn't support aliases).  Otherwise we have to use a
+// function call.
+#if !defined(__GNUC__) || defined(__MACH__)
+
+// This also defines ReplaceSystemAlloc().
+# include "libc_override_redefine.h"  // defines functions malloc()/etc
+
+#else  // #if !defined(__GNUC__) || defined(__MACH__)
+
+// If we get here, we're a gcc system, so do all the overriding we do
+// with gcc.  This does the overriding of all the 'normal' memory
+// allocation.  This also defines ReplaceSystemAlloc().
+# include "libc_override_gcc_and_weak.h"
+
+// We also have to do some glibc-specific overriding.  Some library
+// routines on RedHat 9 allocate memory using malloc() and free it
+// using __libc_free() (or vice-versa).  Since we provide our own
+// implementations of malloc/free, we need to make sure that the
+// __libc_XXX variants (defined as part of glibc) also point to the
+// same implementations.  Since it only matters for redhat, we
+// do it inside the gcc #ifdef, since redhat uses gcc.
+// TODO(csilvers): only do this if we detect we're an old enough glibc?
+
+#define ALIAS(tc_fn)   __attribute__ ((alias (#tc_fn)))
+extern "C" {
+  void* __libc_malloc(size_t size)                ALIAS(tc_malloc);
+  void __libc_free(void* ptr)                     ALIAS(tc_free);
+  void* __libc_realloc(void* ptr, size_t size)    ALIAS(tc_realloc);
+  void* __libc_calloc(size_t n, size_t size)      ALIAS(tc_calloc);
+  void __libc_cfree(void* ptr)                    ALIAS(tc_cfree);
+  void* __libc_memalign(size_t align, size_t s)   ALIAS(tc_memalign);
+  void* __libc_valloc(size_t size)                ALIAS(tc_valloc);
+  void* __libc_pvalloc(size_t size)               ALIAS(tc_pvalloc);
+  int __posix_memalign(void** r, size_t a, size_t s)  ALIAS(tc_posix_memalign);
+}   // extern "C"
+#undef ALIAS
+
+#endif  // #if defined(__GNUC__) && !defined(__MACH__)
+
+// No need to write ReplaceSystemAlloc(); one of the #includes above
+// did it for us.
+
+#endif  // TCMALLOC_LIBC_OVERRIDE_GLIBC_INL_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/libc_override_osx.h b/trunk/3rdparty/gperftools-2-fit/src/libc_override_osx.h
new file mode 100644
index 000000000..9d5d61150
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/libc_override_osx.h
@@ -0,0 +1,308 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein 
+//
+// Used to override malloc routines on OS X systems.  We use the
+// malloc-zone functionality built into OS X to register our malloc
+// routine.
+//
+// 1) We used to use the normal 'override weak libc malloc/etc'
+// technique for OS X.  This is not optimal because mach does not
+// support the 'alias' attribute, so we had to have forwarding
+// functions.  It also does not work very well with OS X shared
+// libraries (dylibs) -- in general, the shared libs don't use
+// tcmalloc unless run with the DYLD_FORCE_FLAT_NAMESPACE envvar.
+//
+// 2) Another approach would be to use an interposition array:
+//      static const interpose_t interposers[] __attribute__((section("__DATA, __interpose"))) = {
+//        { (void *)tc_malloc, (void *)malloc },
+//        { (void *)tc_free, (void *)free },
+//      };
+// This requires the user to set the DYLD_INSERT_LIBRARIES envvar, so
+// is not much better.
+//
+// 3) Registering a new malloc zone avoids all these issues:
+//  http://www.opensource.apple.com/source/Libc/Libc-583/include/malloc/malloc.h
+//  http://www.opensource.apple.com/source/Libc/Libc-583/gen/malloc.c
+// If we make tcmalloc the default malloc zone (undocumented but
+// possible) then all new allocs use it, even those in shared
+// libraries.  Allocs done before tcmalloc was installed, or in libs
+// that aren't using tcmalloc for some reason, will correctly go
+// through the malloc-zone interface when free-ing, and will pick up
+// the libc free rather than tcmalloc free.  So it should "never"
+// cause a crash (famous last words).
+//
+// 4) The routines one must define for one's own malloc have changed
+// between OS X versions.  This requires some hoops on our part, but
+// is only really annoying when it comes to posix_memalign.  The right
+// behavior there depends on what OS version tcmalloc was compiled on,
+// but also what OS version the program is running on.  For now, we
+// punt and don't implement our own posix_memalign.  Apps that really
+// care can use tc_posix_memalign directly.
+
+#ifndef TCMALLOC_LIBC_OVERRIDE_OSX_INL_H_
+#define TCMALLOC_LIBC_OVERRIDE_OSX_INL_H_
+
+#include 
+#ifdef HAVE_FEATURES_H
+#include 
+#endif
+#include 
+
+#if !defined(__APPLE__)
+# error libc_override_glibc-osx.h is for OS X distributions only.
+#endif
+
+#include 
+#include 
+
+namespace tcmalloc {
+  void CentralCacheLockAll();
+  void CentralCacheUnlockAll();
+}
+
+// from AvailabilityMacros.h
+#if defined(MAC_OS_X_VERSION_10_6) && \
+    MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
+extern "C" {
+  // This function is only available on 10.6 (and later) but the
+  // LibSystem headers do not use AvailabilityMacros.h to handle weak
+  // importing automatically.  This prototype is a copy of the one in
+  //  with the WEAK_IMPORT_ATTRBIUTE added.
+  extern malloc_zone_t *malloc_default_purgeable_zone(void)
+      WEAK_IMPORT_ATTRIBUTE;
+}
+#endif
+
+// We need to provide wrappers around all the libc functions.
+namespace {
+size_t mz_size(malloc_zone_t* zone, const void* ptr) {
+  if (MallocExtension::instance()->GetOwnership(ptr) != MallocExtension::kOwned)
+    return 0;  // malloc_zone semantics: return 0 if we don't own the memory
+
+  // TODO(csilvers): change this method to take a const void*, one day.
+  return MallocExtension::instance()->GetAllocatedSize(const_cast(ptr));
+}
+
+void* mz_malloc(malloc_zone_t* zone, size_t size) {
+  return tc_malloc(size);
+}
+
+void* mz_calloc(malloc_zone_t* zone, size_t num_items, size_t size) {
+  return tc_calloc(num_items, size);
+}
+
+void* mz_valloc(malloc_zone_t* zone, size_t size) {
+  return tc_valloc(size);
+}
+
+void mz_free(malloc_zone_t* zone, void* ptr) {
+  return tc_free(ptr);
+}
+
+void* mz_realloc(malloc_zone_t* zone, void* ptr, size_t size) {
+  return tc_realloc(ptr, size);
+}
+
+void* mz_memalign(malloc_zone_t* zone, size_t align, size_t size) {
+  return tc_memalign(align, size);
+}
+
+void mz_destroy(malloc_zone_t* zone) {
+  // A no-op -- we will not be destroyed!
+}
+
+// malloc_introspection callbacks.  I'm not clear on what all of these do.
+kern_return_t mi_enumerator(task_t task, void *,
+                            unsigned type_mask, vm_address_t zone_address,
+                            memory_reader_t reader,
+                            vm_range_recorder_t recorder) {
+  // Should enumerate all the pointers we have.  Seems like a lot of work.
+  return KERN_FAILURE;
+}
+
+size_t mi_good_size(malloc_zone_t *zone, size_t size) {
+  // I think it's always safe to return size, but we maybe could do better.
+  return size;
+}
+
+boolean_t mi_check(malloc_zone_t *zone) {
+  return MallocExtension::instance()->VerifyAllMemory();
+}
+
+void mi_print(malloc_zone_t *zone, boolean_t verbose) {
+  int bufsize = 8192;
+  if (verbose)
+    bufsize = 102400;   // I picked this size arbitrarily
+  char* buffer = new char[bufsize];
+  MallocExtension::instance()->GetStats(buffer, bufsize);
+  fprintf(stdout, "%s", buffer);
+  delete[] buffer;
+}
+
+void mi_log(malloc_zone_t *zone, void *address) {
+  // I don't think we support anything like this
+}
+
+void mi_force_lock(malloc_zone_t *zone) {
+  tcmalloc::CentralCacheLockAll();
+}
+
+void mi_force_unlock(malloc_zone_t *zone) {
+  tcmalloc::CentralCacheUnlockAll();
+}
+
+void mi_statistics(malloc_zone_t *zone, malloc_statistics_t *stats) {
+  // TODO(csilvers): figure out how to fill these out
+  stats->blocks_in_use = 0;
+  stats->size_in_use = 0;
+  stats->max_size_in_use = 0;
+  stats->size_allocated = 0;
+}
+
+boolean_t mi_zone_locked(malloc_zone_t *zone) {
+  return false;  // Hopefully unneeded by us!
+}
+
+}  // unnamed namespace
+
+// OS X doesn't have pvalloc, cfree, malloc_statc, etc, so we can just
+// define our own. :-)  OS X supplies posix_memalign in some versions
+// but not others, either strongly or weakly linked, in a way that's
+// difficult enough to code to correctly, that I just don't try to
+// support either memalign() or posix_memalign().  If you need them
+// and are willing to code to tcmalloc, you can use tc_posix_memalign().
+extern "C" {
+  void  cfree(void* p)                   { tc_cfree(p);               }
+  void* pvalloc(size_t s)                { return tc_pvalloc(s);      }
+  void malloc_stats(void)                { tc_malloc_stats();         }
+  int mallopt(int cmd, int v)            { return tc_mallopt(cmd, v); }
+  // No struct mallinfo on OS X, so don't define mallinfo().
+  // An alias for malloc_size(), which OS X defines.
+  size_t malloc_usable_size(void* p)     { return tc_malloc_size(p); }
+}  // extern "C"
+
+static malloc_zone_t *get_default_zone() {
+   malloc_zone_t **zones = NULL;
+   unsigned int num_zones = 0;
+
+   /*
+    * On OSX 10.12, malloc_default_zone returns a special zone that is not
+    * present in the list of registered zones. That zone uses a "lite zone"
+    * if one is present (apparently enabled when malloc stack logging is
+    * enabled), or the first registered zone otherwise. In practice this
+    * means unless malloc stack logging is enabled, the first registered
+    * zone is the default.
+    * So get the list of zones to get the first one, instead of relying on
+    * malloc_default_zone.
+    */
+   if (KERN_SUCCESS != malloc_get_all_zones(0, NULL, (vm_address_t**) &zones,
+                                            &num_zones)) {
+       /* Reset the value in case the failure happened after it was set. */
+       num_zones = 0;
+   }
+
+   if (num_zones)
+     return zones[0];
+
+   return malloc_default_zone();
+}
+
+
+static void ReplaceSystemAlloc() {
+  static malloc_introspection_t tcmalloc_introspection;
+  memset(&tcmalloc_introspection, 0, sizeof(tcmalloc_introspection));
+
+  tcmalloc_introspection.enumerator = &mi_enumerator;
+  tcmalloc_introspection.good_size = &mi_good_size;
+  tcmalloc_introspection.check = &mi_check;
+  tcmalloc_introspection.print = &mi_print;
+  tcmalloc_introspection.log = &mi_log;
+  tcmalloc_introspection.force_lock = &mi_force_lock;
+  tcmalloc_introspection.force_unlock = &mi_force_unlock;
+
+  static malloc_zone_t tcmalloc_zone;
+  memset(&tcmalloc_zone, 0, sizeof(malloc_zone_t));
+
+  // Start with a version 4 zone which is used for OS X 10.4 and 10.5.
+  tcmalloc_zone.version = 4;
+  tcmalloc_zone.zone_name = "tcmalloc";
+  tcmalloc_zone.size = &mz_size;
+  tcmalloc_zone.malloc = &mz_malloc;
+  tcmalloc_zone.calloc = &mz_calloc;
+  tcmalloc_zone.valloc = &mz_valloc;
+  tcmalloc_zone.free = &mz_free;
+  tcmalloc_zone.realloc = &mz_realloc;
+  tcmalloc_zone.destroy = &mz_destroy;
+  tcmalloc_zone.batch_malloc = NULL;
+  tcmalloc_zone.batch_free = NULL;
+  tcmalloc_zone.introspect = &tcmalloc_introspection;
+
+  // from AvailabilityMacros.h
+#if defined(MAC_OS_X_VERSION_10_6) && \
+    MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
+  // Switch to version 6 on OSX 10.6 to support memalign.
+  tcmalloc_zone.version = 6;
+  tcmalloc_zone.free_definite_size = NULL;
+  tcmalloc_zone.memalign = &mz_memalign;
+  tcmalloc_introspection.zone_locked = &mi_zone_locked;
+
+  // Request the default purgable zone to force its creation. The
+  // current default zone is registered with the purgable zone for
+  // doing tiny and small allocs.  Sadly, it assumes that the default
+  // zone is the szone implementation from OS X and will crash if it
+  // isn't.  By creating the zone now, this will be true and changing
+  // the default zone won't cause a problem.  This only needs to
+  // happen when actually running on OS X 10.6 and higher (note the
+  // ifdef above only checks if we were *compiled* with 10.6 or
+  // higher; at runtime we have to check if this symbol is defined.)
+  if (malloc_default_purgeable_zone) {
+    malloc_default_purgeable_zone();
+  }
+#endif
+
+  // Register the tcmalloc zone. At this point, it will not be the
+  // default zone.
+  malloc_zone_register(&tcmalloc_zone);
+
+  // Unregister and reregister the default zone.  Unregistering swaps
+  // the specified zone with the last one registered which for the
+  // default zone makes the more recently registered zone the default
+  // zone.  The default zone is then re-registered to ensure that
+  // allocations made from it earlier will be handled correctly.
+  // Things are not guaranteed to work that way, but it's how they work now.
+  malloc_zone_t *default_zone = get_default_zone();
+  malloc_zone_unregister(default_zone);
+  malloc_zone_register(default_zone);
+}
+
+#endif  // TCMALLOC_LIBC_OVERRIDE_OSX_INL_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/libc_override_redefine.h b/trunk/3rdparty/gperftools-2-fit/src/libc_override_redefine.h
new file mode 100644
index 000000000..4d61b25a9
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/libc_override_redefine.h
@@ -0,0 +1,131 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein 
+//
+// Used on systems that don't have their own definition of
+// malloc/new/etc.  (Typically this will be a windows msvcrt.dll that
+// has been edited to remove the definitions.)  We can just define our
+// own as normal functions.
+//
+// This should also work on systems were all the malloc routines are
+// defined as weak symbols, and there's no support for aliasing.
+
+#ifndef TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_
+#define TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_
+
+void* operator new(size_t size)                  { return tc_new(size);       }
+void operator delete(void* p) CPP_NOTHROW        { tc_delete(p);              }
+void* operator new[](size_t size)                { return tc_newarray(size);  }
+void operator delete[](void* p) CPP_NOTHROW      { tc_deletearray(p);         }
+void* operator new(size_t size, const std::nothrow_t& nt) CPP_NOTHROW {
+  return tc_new_nothrow(size, nt);
+}
+void* operator new[](size_t size, const std::nothrow_t& nt) CPP_NOTHROW {
+  return tc_newarray_nothrow(size, nt);
+}
+void operator delete(void* ptr, const std::nothrow_t& nt) CPP_NOTHROW {
+  return tc_delete_nothrow(ptr, nt);
+}
+void operator delete[](void* ptr, const std::nothrow_t& nt) CPP_NOTHROW {
+  return tc_deletearray_nothrow(ptr, nt);
+}
+
+#ifdef ENABLE_SIZED_DELETE
+void operator delete(void* p, size_t s) CPP_NOTHROW  { tc_delete_sized(p, s);     }
+void operator delete[](void* p, size_t s) CPP_NOTHROW{ tc_deletearray_sized(p, s);}
+#endif
+
+#if defined(ENABLE_ALIGNED_NEW_DELETE)
+
+void* operator new(size_t size, std::align_val_t al) {
+  return tc_new_aligned(size, al);
+}
+void operator delete(void* p, std::align_val_t al) CPP_NOTHROW {
+  tc_delete_aligned(p, al);
+}
+void* operator new[](size_t size, std::align_val_t al) {
+  return tc_newarray_aligned(size, al);
+}
+void operator delete[](void* p, std::align_val_t al) CPP_NOTHROW {
+  tc_deletearray_aligned(p, al);
+}
+void* operator new(size_t size, std::align_val_t al, const std::nothrow_t& nt) CPP_NOTHROW {
+  return tc_new_aligned_nothrow(size, al, nt);
+}
+void* operator new[](size_t size, std::align_val_t al, const std::nothrow_t& nt) CPP_NOTHROW {
+  return tc_newarray_aligned_nothrow(size, al, nt);
+}
+void operator delete(void* ptr, std::align_val_t al, const std::nothrow_t& nt) CPP_NOTHROW {
+  return tc_delete_aligned_nothrow(ptr, al, nt);
+}
+void operator delete[](void* ptr, std::align_val_t al, const std::nothrow_t& nt) CPP_NOTHROW {
+  return tc_deletearray_aligned_nothrow(ptr, al, nt);
+}
+
+#ifdef ENABLE_SIZED_DELETE
+void operator delete(void* p, size_t s, std::align_val_t al) CPP_NOTHROW {
+  tc_delete_sized_aligned(p, s, al);
+}
+void operator delete[](void* p, size_t s, std::align_val_t al) CPP_NOTHROW {
+  tc_deletearray_sized_aligned(p, s, al);
+}
+#endif
+
+#endif // defined(ENABLE_ALIGNED_NEW_DELETE)
+
+extern "C" {
+  void* malloc(size_t s)                         { return tc_malloc(s);       }
+  void  free(void* p)                            { tc_free(p);                }
+  void* realloc(void* p, size_t s)               { return tc_realloc(p, s);   }
+  void* calloc(size_t n, size_t s)               { return tc_calloc(n, s);    }
+  void  cfree(void* p)                           { tc_cfree(p);               }
+  void* memalign(size_t a, size_t s)             { return tc_memalign(a, s);  }
+  void* aligned_alloc(size_t a, size_t s)        { return tc_memalign(a, s);  }
+  void* valloc(size_t s)                         { return tc_valloc(s);       }
+  void* pvalloc(size_t s)                        { return tc_pvalloc(s);      }
+  int posix_memalign(void** r, size_t a, size_t s)         {
+    return tc_posix_memalign(r, a, s);
+  }
+  void malloc_stats(void)                        { tc_malloc_stats();         }
+  int mallopt(int cmd, int v)                    { return tc_mallopt(cmd, v); }
+#ifdef HAVE_STRUCT_MALLINFO
+  struct mallinfo mallinfo(void)                 { return tc_mallinfo();      }
+#endif
+  size_t malloc_size(void* p)                    { return tc_malloc_size(p); }
+  size_t malloc_usable_size(void* p)             { return tc_malloc_size(p); }
+}  // extern "C"
+
+// No need to do anything at tcmalloc-registration time: we do it all
+// via overriding weak symbols (at link time).
+static void ReplaceSystemAlloc() { }
+
+#endif  // TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/linked_list.h b/trunk/3rdparty/gperftools-2-fit/src/linked_list.h
new file mode 100644
index 000000000..f25b6f890
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/linked_list.h
@@ -0,0 +1,115 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+//
+// Some very basic linked list functions for dealing with using void * as
+// storage.
+
+#ifndef TCMALLOC_LINKED_LIST_H_
+#define TCMALLOC_LINKED_LIST_H_
+
+#include 
+
+namespace tcmalloc {
+
+inline void *SLL_Next(void *t) {
+  return *(reinterpret_cast(t));
+}
+
+inline void SLL_SetNext(void *t, void *n) {
+  *(reinterpret_cast(t)) = n;
+}
+
+inline void SLL_Push(void **list, void *element) {
+  void *next = *list;
+  *list = element;
+  SLL_SetNext(element, next);
+}
+
+inline void *SLL_Pop(void **list) {
+  void *result = *list;
+  *list = SLL_Next(*list);
+  return result;
+}
+
+inline bool SLL_TryPop(void **list, void **rv) {
+  void *result = *list;
+  if (!result) {
+    return false;
+  }
+  void *next = SLL_Next(*list);
+  *list = next;
+  *rv = result;
+  return true;
+}
+
+// Remove N elements from a linked list to which head points.  head will be
+// modified to point to the new head.  start and end will point to the first
+// and last nodes of the range.  Note that end will point to NULL after this
+// function is called.
+inline void SLL_PopRange(void **head, int N, void **start, void **end) {
+  if (N == 0) {
+    *start = NULL;
+    *end = NULL;
+    return;
+  }
+
+  void *tmp = *head;
+  for (int i = 1; i < N; ++i) {
+    tmp = SLL_Next(tmp);
+  }
+
+  *start = *head;
+  *end = tmp;
+  *head = SLL_Next(tmp);
+  // Unlink range from list.
+  SLL_SetNext(tmp, NULL);
+}
+
+inline void SLL_PushRange(void **head, void *start, void *end) {
+  if (!start) return;
+  SLL_SetNext(end, *head);
+  *head = start;
+}
+
+inline size_t SLL_Size(void *head) {
+  int count = 0;
+  while (head) {
+    count++;
+    head = SLL_Next(head);
+  }
+  return count;
+}
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_LINKED_LIST_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/malloc_extension.cc b/trunk/3rdparty/gperftools-2-fit/src/malloc_extension.cc
new file mode 100644
index 000000000..68cb98aeb
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/malloc_extension.cc
@@ -0,0 +1,388 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#include 
+#include 
+#include 
+#include 
+#if defined HAVE_STDINT_H
+#include 
+#elif defined HAVE_INTTYPES_H
+#include 
+#else
+#include 
+#endif
+#include 
+#include "base/dynamic_annotations.h"
+#include "base/sysinfo.h"    // for FillProcSelfMaps
+#ifndef NO_HEAP_CHECK
+#include "gperftools/heap-checker.h"
+#endif
+#include "gperftools/malloc_extension.h"
+#include "gperftools/malloc_extension_c.h"
+#include "maybe_threads.h"
+#include "base/googleinit.h"
+
+using std::string;
+using std::vector;
+
+static void DumpAddressMap(string* result) {
+  *result += "\nMAPPED_LIBRARIES:\n";
+  // We keep doubling until we get a fit
+  const size_t old_resultlen = result->size();
+  for (int amap_size = 10240; amap_size < 10000000; amap_size *= 2) {
+    result->resize(old_resultlen + amap_size);
+    bool wrote_all = false;
+    const int bytes_written =
+        tcmalloc::FillProcSelfMaps(&((*result)[old_resultlen]), amap_size,
+                                   &wrote_all);
+    if (wrote_all) {   // we fit!
+      (*result)[old_resultlen + bytes_written] = '\0';
+      result->resize(old_resultlen + bytes_written);
+      return;
+    }
+  }
+  result->reserve(old_resultlen);   // just don't print anything
+}
+
+// Note: this routine is meant to be called before threads are spawned.
+void MallocExtension::Initialize() {
+  static bool initialize_called = false;
+
+  if (initialize_called) return;
+  initialize_called = true;
+
+#ifdef __GLIBC__
+  // GNU libc++ versions 3.3 and 3.4 obey the environment variables
+  // GLIBCPP_FORCE_NEW and GLIBCXX_FORCE_NEW respectively.  Setting
+  // one of these variables forces the STL default allocator to call
+  // new() or delete() for each allocation or deletion.  Otherwise
+  // the STL allocator tries to avoid the high cost of doing
+  // allocations by pooling memory internally.  However, tcmalloc
+  // does allocations really fast, especially for the types of small
+  // items one sees in STL, so it's better off just using us.
+  // TODO: control whether we do this via an environment variable?
+  setenv("GLIBCPP_FORCE_NEW", "1", false /* no overwrite*/);
+  setenv("GLIBCXX_FORCE_NEW", "1", false /* no overwrite*/);
+
+  // Now we need to make the setenv 'stick', which it may not do since
+  // the env is flakey before main() is called.  But luckily stl only
+  // looks at this env var the first time it tries to do an alloc, and
+  // caches what it finds.  So we just cause an stl alloc here.
+  string dummy("I need to be allocated");
+  dummy += "!";         // so the definition of dummy isn't optimized out
+#endif  /* __GLIBC__ */
+}
+
+// SysAllocator implementation
+SysAllocator::~SysAllocator() {}
+
+// Default implementation -- does nothing
+MallocExtension::~MallocExtension() { }
+bool MallocExtension::VerifyAllMemory() { return true; }
+bool MallocExtension::VerifyNewMemory(const void* p) { return true; }
+bool MallocExtension::VerifyArrayNewMemory(const void* p) { return true; }
+bool MallocExtension::VerifyMallocMemory(const void* p) { return true; }
+
+bool MallocExtension::GetNumericProperty(const char* property, size_t* value) {
+  return false;
+}
+
+bool MallocExtension::SetNumericProperty(const char* property, size_t value) {
+  return false;
+}
+
+void MallocExtension::GetStats(char* buffer, int length) {
+  assert(length > 0);
+  buffer[0] = '\0';
+}
+
+bool MallocExtension::MallocMemoryStats(int* blocks, size_t* total,
+                                       int histogram[kMallocHistogramSize]) {
+  *blocks = 0;
+  *total = 0;
+  memset(histogram, 0, sizeof(*histogram) * kMallocHistogramSize);
+  return true;
+}
+
+void** MallocExtension::ReadStackTraces(int* sample_period) {
+  return NULL;
+}
+
+void** MallocExtension::ReadHeapGrowthStackTraces() {
+  return NULL;
+}
+
+void MallocExtension::MarkThreadIdle() {
+  // Default implementation does nothing
+}
+
+void MallocExtension::MarkThreadBusy() {
+  // Default implementation does nothing
+}
+
+SysAllocator* MallocExtension::GetSystemAllocator() {
+  return NULL;
+}
+
+void MallocExtension::SetSystemAllocator(SysAllocator *a) {
+  // Default implementation does nothing
+}
+
+void MallocExtension::ReleaseToSystem(size_t num_bytes) {
+  // Default implementation does nothing
+}
+
+void MallocExtension::ReleaseFreeMemory() {
+  ReleaseToSystem(static_cast(-1));   // SIZE_T_MAX
+}
+
+void MallocExtension::SetMemoryReleaseRate(double rate) {
+  // Default implementation does nothing
+}
+
+double MallocExtension::GetMemoryReleaseRate() {
+  return -1.0;
+}
+
+size_t MallocExtension::GetEstimatedAllocatedSize(size_t size) {
+  return size;
+}
+
+size_t MallocExtension::GetAllocatedSize(const void* p) {
+  assert(GetOwnership(p) != kNotOwned);
+  return 0;
+}
+
+MallocExtension::Ownership MallocExtension::GetOwnership(const void* p) {
+  return kUnknownOwnership;
+}
+
+void MallocExtension::GetFreeListSizes(
+    vector* v) {
+  v->clear();
+}
+
+size_t MallocExtension::GetThreadCacheSize() {
+  return 0;
+}
+
+void MallocExtension::MarkThreadTemporarilyIdle() {
+  // Default implementation does nothing
+}
+
+// The current malloc extension object.
+
+static MallocExtension* current_instance;
+
+static void InitModule() {
+  if (current_instance != NULL) {
+    return;
+  }
+  current_instance = new MallocExtension;
+#ifndef NO_HEAP_CHECK
+  HeapLeakChecker::IgnoreObject(current_instance);
+#endif
+}
+
+REGISTER_MODULE_INITIALIZER(malloc_extension_init, InitModule())
+
+MallocExtension* MallocExtension::instance() {
+  InitModule();
+  return current_instance;
+}
+
+void MallocExtension::Register(MallocExtension* implementation) {
+  InitModule();
+  // When running under valgrind, our custom malloc is replaced with
+  // valgrind's one and malloc extensions will not work.  (Note:
+  // callers should be responsible for checking that they are the
+  // malloc that is really being run, before calling Register.  This
+  // is just here as an extra sanity check.)
+  if (!RunningOnValgrind()) {
+    current_instance = implementation;
+  }
+}
+
+// -----------------------------------------------------------------------
+// Heap sampling support
+// -----------------------------------------------------------------------
+
+namespace {
+
+// Accessors
+uintptr_t Count(void** entry) {
+  return reinterpret_cast(entry[0]);
+}
+uintptr_t Size(void** entry) {
+  return reinterpret_cast(entry[1]);
+}
+uintptr_t Depth(void** entry) {
+  return reinterpret_cast(entry[2]);
+}
+void* PC(void** entry, int i) {
+  return entry[3+i];
+}
+
+void PrintCountAndSize(MallocExtensionWriter* writer,
+                       uintptr_t count, uintptr_t size) {
+  char buf[100];
+  snprintf(buf, sizeof(buf),
+           "%6" PRIu64 ": %8" PRIu64 " [%6" PRIu64 ": %8" PRIu64 "] @",
+           static_cast(count),
+           static_cast(size),
+           static_cast(count),
+           static_cast(size));
+  writer->append(buf, strlen(buf));
+}
+
+void PrintHeader(MallocExtensionWriter* writer,
+                 const char* label, void** entries) {
+  // Compute the total count and total size
+  uintptr_t total_count = 0;
+  uintptr_t total_size = 0;
+  for (void** entry = entries; Count(entry) != 0; entry += 3 + Depth(entry)) {
+    total_count += Count(entry);
+    total_size += Size(entry);
+  }
+
+  const char* const kTitle = "heap profile: ";
+  writer->append(kTitle, strlen(kTitle));
+  PrintCountAndSize(writer, total_count, total_size);
+  writer->append(" ", 1);
+  writer->append(label, strlen(label));
+  writer->append("\n", 1);
+}
+
+void PrintStackEntry(MallocExtensionWriter* writer, void** entry) {
+  PrintCountAndSize(writer, Count(entry), Size(entry));
+
+  for (int i = 0; i < Depth(entry); i++) {
+    char buf[32];
+    snprintf(buf, sizeof(buf), " %p", PC(entry, i));
+    writer->append(buf, strlen(buf));
+  }
+  writer->append("\n", 1);
+}
+
+}
+
+void MallocExtension::GetHeapSample(MallocExtensionWriter* writer) {
+  int sample_period = 0;
+  void** entries = ReadStackTraces(&sample_period);
+  if (entries == NULL) {
+    const char* const kErrorMsg =
+        "This malloc implementation does not support sampling.\n"
+        "As of 2005/01/26, only tcmalloc supports sampling, and\n"
+        "you are probably running a binary that does not use\n"
+        "tcmalloc.\n";
+    writer->append(kErrorMsg, strlen(kErrorMsg));
+    return;
+  }
+
+  char label[32];
+  sprintf(label, "heap_v2/%d", sample_period);
+  PrintHeader(writer, label, entries);
+  for (void** entry = entries; Count(entry) != 0; entry += 3 + Depth(entry)) {
+    PrintStackEntry(writer, entry);
+  }
+  delete[] entries;
+
+  DumpAddressMap(writer);
+}
+
+void MallocExtension::GetHeapGrowthStacks(MallocExtensionWriter* writer) {
+  void** entries = ReadHeapGrowthStackTraces();
+  if (entries == NULL) {
+    const char* const kErrorMsg =
+        "This malloc implementation does not support "
+        "ReadHeapGrowthStackTraces().\n"
+        "As of 2005/09/27, only tcmalloc supports this, and you\n"
+        "are probably running a binary that does not use tcmalloc.\n";
+    writer->append(kErrorMsg, strlen(kErrorMsg));
+    return;
+  }
+
+  // Do not canonicalize the stack entries, so that we get a
+  // time-ordered list of stack traces, which may be useful if the
+  // client wants to focus on the latest stack traces.
+  PrintHeader(writer, "growth", entries);
+  for (void** entry = entries; Count(entry) != 0; entry += 3 + Depth(entry)) {
+    PrintStackEntry(writer, entry);
+  }
+  delete[] entries;
+
+  DumpAddressMap(writer);
+}
+
+void MallocExtension::Ranges(void* arg, RangeFunction func) {
+  // No callbacks by default
+}
+
+// These are C shims that work on the current instance.
+
+#define C_SHIM(fn, retval, paramlist, arglist)          \
+  extern "C" PERFTOOLS_DLL_DECL retval MallocExtension_##fn paramlist {    \
+    return MallocExtension::instance()->fn arglist;     \
+  }
+
+C_SHIM(VerifyAllMemory, int, (void), ());
+C_SHIM(VerifyNewMemory, int, (const void* p), (p));
+C_SHIM(VerifyArrayNewMemory, int, (const void* p), (p));
+C_SHIM(VerifyMallocMemory, int, (const void* p), (p));
+C_SHIM(MallocMemoryStats, int,
+       (int* blocks, size_t* total, int histogram[kMallocHistogramSize]),
+       (blocks, total, histogram));
+
+C_SHIM(GetStats, void,
+       (char* buffer, int buffer_length), (buffer, buffer_length));
+C_SHIM(GetNumericProperty, int,
+       (const char* property, size_t* value), (property, value));
+C_SHIM(SetNumericProperty, int,
+       (const char* property, size_t value), (property, value));
+
+C_SHIM(MarkThreadIdle, void, (void), ());
+C_SHIM(MarkThreadBusy, void, (void), ());
+C_SHIM(ReleaseFreeMemory, void, (void), ());
+C_SHIM(ReleaseToSystem, void, (size_t num_bytes), (num_bytes));
+C_SHIM(GetEstimatedAllocatedSize, size_t, (size_t size), (size));
+C_SHIM(GetAllocatedSize, size_t, (const void* p), (p));
+C_SHIM(GetThreadCacheSize, size_t, (void), ());
+C_SHIM(MarkThreadTemporarilyIdle, void, (void), ());
+
+// Can't use the shim here because of the need to translate the enums.
+extern "C"
+MallocExtension_Ownership MallocExtension_GetOwnership(const void* p) {
+  return static_cast(
+      MallocExtension::instance()->GetOwnership(p));
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/malloc_hook-inl.h b/trunk/3rdparty/gperftools-2-fit/src/malloc_hook-inl.h
new file mode 100644
index 000000000..b07704ea6
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/malloc_hook-inl.h
@@ -0,0 +1,249 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// This has the implementation details of malloc_hook that are needed
+// to use malloc-hook inside the tcmalloc system.  It does not hold
+// any of the client-facing calls that are used to add new hooks.
+
+#ifndef _MALLOC_HOOK_INL_H_
+#define _MALLOC_HOOK_INL_H_
+
+#include 
+#include 
+#include "base/atomicops.h"
+#include "base/basictypes.h"
+#include 
+
+#include "common.h" // for UNLIKELY
+
+namespace base { namespace internal {
+
+// Capacity of 8 means that HookList is 9 words.
+static const int kHookListCapacity = 8;
+// last entry is reserved for deprecated "singular" hooks. So we have
+// 7 "normal" hooks per list
+static const int kHookListMaxValues = 7;
+static const int kHookListSingularIdx = 7;
+
+// HookList: a class that provides synchronized insertions and removals and
+// lockless traversal.  Most of the implementation is in malloc_hook.cc.
+template 
+struct PERFTOOLS_DLL_DECL HookList {
+  COMPILE_ASSERT(sizeof(T) <= sizeof(AtomicWord), T_should_fit_in_AtomicWord);
+
+  // Adds value to the list.  Note that duplicates are allowed.  Thread-safe and
+  // blocking (acquires hooklist_spinlock).  Returns true on success; false
+  // otherwise (failures include invalid value and no space left).
+  bool Add(T value);
+
+  void FixupPrivEndLocked();
+
+  // Removes the first entry matching value from the list.  Thread-safe and
+  // blocking (acquires hooklist_spinlock).  Returns true on success; false
+  // otherwise (failures include invalid value and no value found).
+  bool Remove(T value);
+
+  // Store up to n values of the list in output_array, and return the number of
+  // elements stored.  Thread-safe and non-blocking.  This is fast (one memory
+  // access) if the list is empty.
+  int Traverse(T* output_array, int n) const;
+
+  // Fast inline implementation for fast path of Invoke*Hook.
+  bool empty() const {
+    return base::subtle::NoBarrier_Load(&priv_end) == 0;
+  }
+
+  // Used purely to handle deprecated singular hooks
+  T GetSingular() const {
+    const AtomicWord *place = &priv_data[kHookListSingularIdx];
+    return bit_cast(base::subtle::NoBarrier_Load(place));
+  }
+
+  T ExchangeSingular(T new_val);
+
+  // This internal data is not private so that the class is an aggregate and can
+  // be initialized by the linker.  Don't access this directly.  Use the
+  // INIT_HOOK_LIST macro in malloc_hook.cc.
+
+  // One more than the index of the last valid element in priv_data.  During
+  // 'Remove' this may be past the last valid element in priv_data, but
+  // subsequent values will be 0.
+  //
+  // Index kHookListCapacity-1 is reserved as 'deprecated' single hook pointer
+  AtomicWord priv_end;
+  AtomicWord priv_data[kHookListCapacity];
+};
+
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList new_hooks_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList delete_hooks_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList premmap_hooks_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList mmap_hooks_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList mmap_replacement_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList munmap_hooks_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList munmap_replacement_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList mremap_hooks_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList presbrk_hooks_;
+ATTRIBUTE_VISIBILITY_HIDDEN extern HookList sbrk_hooks_;
+
+} }  // namespace base::internal
+
+// The following method is DEPRECATED
+inline MallocHook::NewHook MallocHook::GetNewHook() {
+  return base::internal::new_hooks_.GetSingular();
+}
+
+inline void MallocHook::InvokeNewHook(const void* p, size_t s) {
+  if (PREDICT_FALSE(!base::internal::new_hooks_.empty())) {
+    InvokeNewHookSlow(p, s);
+  }
+}
+
+// The following method is DEPRECATED
+inline MallocHook::DeleteHook MallocHook::GetDeleteHook() {
+  return base::internal::delete_hooks_.GetSingular();
+}
+
+inline void MallocHook::InvokeDeleteHook(const void* p) {
+  if (PREDICT_FALSE(!base::internal::delete_hooks_.empty())) {
+    InvokeDeleteHookSlow(p);
+  }
+}
+
+// The following method is DEPRECATED
+inline MallocHook::PreMmapHook MallocHook::GetPreMmapHook() {
+  return base::internal::premmap_hooks_.GetSingular();
+}
+
+inline void MallocHook::InvokePreMmapHook(const void* start,
+                                          size_t size,
+                                          int protection,
+                                          int flags,
+                                          int fd,
+                                          off_t offset) {
+  if (!base::internal::premmap_hooks_.empty()) {
+    InvokePreMmapHookSlow(start, size, protection, flags, fd, offset);
+  }
+}
+
+// The following method is DEPRECATED
+inline MallocHook::MmapHook MallocHook::GetMmapHook() {
+  return base::internal::mmap_hooks_.GetSingular();
+}
+
+inline void MallocHook::InvokeMmapHook(const void* result,
+                                       const void* start,
+                                       size_t size,
+                                       int protection,
+                                       int flags,
+                                       int fd,
+                                       off_t offset) {
+  if (!base::internal::mmap_hooks_.empty()) {
+    InvokeMmapHookSlow(result, start, size, protection, flags, fd, offset);
+  }
+}
+
+inline bool MallocHook::InvokeMmapReplacement(const void* start,
+                                              size_t size,
+                                              int protection,
+                                              int flags,
+                                              int fd,
+                                              off_t offset,
+                                              void** result) {
+  if (!base::internal::mmap_replacement_.empty()) {
+    return InvokeMmapReplacementSlow(start, size,
+                                     protection, flags,
+                                     fd, offset,
+                                     result);
+  }
+  return false;
+}
+
+// The following method is DEPRECATED
+inline MallocHook::MunmapHook MallocHook::GetMunmapHook() {
+  return base::internal::munmap_hooks_.GetSingular();
+}
+
+inline void MallocHook::InvokeMunmapHook(const void* p, size_t size) {
+  if (!base::internal::munmap_hooks_.empty()) {
+    InvokeMunmapHookSlow(p, size);
+  }
+}
+
+inline bool MallocHook::InvokeMunmapReplacement(
+    const void* p, size_t size, int* result) {
+  if (!base::internal::mmap_replacement_.empty()) {
+    return InvokeMunmapReplacementSlow(p, size, result);
+  }
+  return false;
+}
+
+// The following method is DEPRECATED
+inline MallocHook::MremapHook MallocHook::GetMremapHook() {
+  return base::internal::mremap_hooks_.GetSingular();
+}
+
+inline void MallocHook::InvokeMremapHook(const void* result,
+                                         const void* old_addr,
+                                         size_t old_size,
+                                         size_t new_size,
+                                         int flags,
+                                         const void* new_addr) {
+  if (!base::internal::mremap_hooks_.empty()) {
+    InvokeMremapHookSlow(result, old_addr, old_size, new_size, flags, new_addr);
+  }
+}
+
+// The following method is DEPRECATED
+inline MallocHook::PreSbrkHook MallocHook::GetPreSbrkHook() {
+  return base::internal::presbrk_hooks_.GetSingular();
+}
+
+inline void MallocHook::InvokePreSbrkHook(ptrdiff_t increment) {
+  if (!base::internal::presbrk_hooks_.empty() && increment != 0) {
+    InvokePreSbrkHookSlow(increment);
+  }
+}
+
+// The following method is DEPRECATED
+inline MallocHook::SbrkHook MallocHook::GetSbrkHook() {
+  return base::internal::sbrk_hooks_.GetSingular();
+}
+
+inline void MallocHook::InvokeSbrkHook(const void* result,
+                                       ptrdiff_t increment) {
+  if (!base::internal::sbrk_hooks_.empty() && increment != 0) {
+    InvokeSbrkHookSlow(result, increment);
+  }
+}
+
+#endif /* _MALLOC_HOOK_INL_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/malloc_hook.cc b/trunk/3rdparty/gperftools-2-fit/src/malloc_hook.cc
new file mode 100644
index 000000000..9d5741ef5
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/malloc_hook.cc
@@ -0,0 +1,711 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#include 
+
+// Disable the glibc prototype of mremap(), as older versions of the
+// system headers define this function with only four arguments,
+// whereas newer versions allow an optional fifth argument:
+#ifdef HAVE_MMAP
+# define mremap glibc_mremap
+# include 
+# undef mremap
+#endif
+
+#include 
+#ifdef HAVE_STDINT_H
+#include 
+#endif
+#include 
+#include "base/logging.h"
+#include "base/spinlock.h"
+#include "maybe_emergency_malloc.h"
+#include "maybe_threads.h"
+#include "malloc_hook-inl.h"
+#include 
+
+// This #ifdef should almost never be set.  Set NO_TCMALLOC_SAMPLES if
+// you're porting to a system where you really can't get a stacktrace.
+#ifdef NO_TCMALLOC_SAMPLES
+  // We use #define so code compiles even if you #include stacktrace.h somehow.
+# define GetStackTrace(stack, depth, skip)  (0)
+#else
+# include 
+#endif
+
+// __THROW is defined in glibc systems.  It means, counter-intuitively,
+// "This function will never throw an exception."  It's an optional
+// optimization tool, but we may need to use it to match glibc prototypes.
+#ifndef __THROW    // I guess we're not on a glibc system
+# define __THROW   // __THROW is just an optimization, so ok to make it ""
+#endif
+
+using std::copy;
+
+
+// Declaration of default weak initialization function, that can be overridden
+// by linking-in a strong definition (as heap-checker.cc does).  This is
+// extern "C" so that it doesn't trigger gold's --detect-odr-violations warning,
+// which only looks at C++ symbols.
+//
+// This function is declared here as weak, and defined later, rather than a more
+// straightforward simple weak definition, as a workround for an icc compiler
+// issue ((Intel reference 290819).  This issue causes icc to resolve weak
+// symbols too early, at compile rather than link time.  By declaring it (weak)
+// here, then defining it below after its use, we can avoid the problem.
+extern "C" {
+ATTRIBUTE_WEAK void MallocHook_InitAtFirstAllocation_HeapLeakChecker();
+}
+
+namespace {
+
+void RemoveInitialHooksAndCallInitializers();  // below.
+
+pthread_once_t once = PTHREAD_ONCE_INIT;
+
+// These hooks are installed in MallocHook as the only initial hooks.  The first
+// hook that is called will run RemoveInitialHooksAndCallInitializers (see the
+// definition below) and then redispatch to any malloc hooks installed by
+// RemoveInitialHooksAndCallInitializers.
+//
+// Note(llib): there is a possibility of a race in the event that there are
+// multiple threads running before the first allocation.  This is pretty
+// difficult to achieve, but if it is then multiple threads may concurrently do
+// allocations.  The first caller will call
+// RemoveInitialHooksAndCallInitializers via one of the initial hooks.  A
+// concurrent allocation may, depending on timing either:
+// * still have its initial malloc hook installed, run that and block on waiting
+//   for the first caller to finish its call to
+//   RemoveInitialHooksAndCallInitializers, and proceed normally.
+// * occur some time during the RemoveInitialHooksAndCallInitializers call, at
+//   which point there could be no initial hooks and the subsequent hooks that
+//   are about to be set up by RemoveInitialHooksAndCallInitializers haven't
+//   been installed yet.  I think the worst we can get is that some allocations
+//   will not get reported to some hooks set by the initializers called from
+//   RemoveInitialHooksAndCallInitializers.
+
+void InitialNewHook(const void* ptr, size_t size) {
+  perftools_pthread_once(&once, &RemoveInitialHooksAndCallInitializers);
+  MallocHook::InvokeNewHook(ptr, size);
+}
+
+void InitialPreMMapHook(const void* start,
+                               size_t size,
+                               int protection,
+                               int flags,
+                               int fd,
+                               off_t offset) {
+  perftools_pthread_once(&once, &RemoveInitialHooksAndCallInitializers);
+  MallocHook::InvokePreMmapHook(start, size, protection, flags, fd, offset);
+}
+
+void InitialPreSbrkHook(ptrdiff_t increment) {
+  perftools_pthread_once(&once, &RemoveInitialHooksAndCallInitializers);
+  MallocHook::InvokePreSbrkHook(increment);
+}
+
+// This function is called at most once by one of the above initial malloc
+// hooks.  It removes all initial hooks and initializes all other clients that
+// want to get control at the very first memory allocation.  The initializers
+// may assume that the initial malloc hooks have been removed.  The initializers
+// may set up malloc hooks and allocate memory.
+void RemoveInitialHooksAndCallInitializers() {
+  RAW_CHECK(MallocHook::RemoveNewHook(&InitialNewHook), "");
+  RAW_CHECK(MallocHook::RemovePreMmapHook(&InitialPreMMapHook), "");
+  RAW_CHECK(MallocHook::RemovePreSbrkHook(&InitialPreSbrkHook), "");
+
+  // HeapLeakChecker is currently the only module that needs to get control on
+  // the first memory allocation, but one can add other modules by following the
+  // same weak/strong function pattern.
+  MallocHook_InitAtFirstAllocation_HeapLeakChecker();
+}
+
+}  // namespace
+
+// Weak default initialization function that must go after its use.
+extern "C" void MallocHook_InitAtFirstAllocation_HeapLeakChecker() {
+  // Do nothing.
+}
+
+namespace base { namespace internal {
+
+// This lock is shared between all implementations of HookList::Add & Remove.
+// The potential for contention is very small.  This needs to be a SpinLock and
+// not a Mutex since it's possible for Mutex locking to allocate memory (e.g.,
+// per-thread allocation in debug builds), which could cause infinite recursion.
+static SpinLock hooklist_spinlock(base::LINKER_INITIALIZED);
+
+template 
+bool HookList::Add(T value_as_t) {
+  AtomicWord value = bit_cast(value_as_t);
+  if (value == 0) {
+    return false;
+  }
+  SpinLockHolder l(&hooklist_spinlock);
+  // Find the first slot in data that is 0.
+  int index = 0;
+  while ((index < kHookListMaxValues) &&
+         (base::subtle::NoBarrier_Load(&priv_data[index]) != 0)) {
+    ++index;
+  }
+  if (index == kHookListMaxValues) {
+    return false;
+  }
+  AtomicWord prev_num_hooks = base::subtle::Acquire_Load(&priv_end);
+  base::subtle::NoBarrier_Store(&priv_data[index], value);
+  if (prev_num_hooks <= index) {
+    base::subtle::NoBarrier_Store(&priv_end, index + 1);
+  }
+  return true;
+}
+
+template 
+void HookList::FixupPrivEndLocked() {
+  AtomicWord hooks_end = base::subtle::NoBarrier_Load(&priv_end);
+  while ((hooks_end > 0) &&
+         (base::subtle::NoBarrier_Load(&priv_data[hooks_end - 1]) == 0)) {
+    --hooks_end;
+  }
+  base::subtle::NoBarrier_Store(&priv_end, hooks_end);
+}
+
+template 
+bool HookList::Remove(T value_as_t) {
+  if (value_as_t == 0) {
+    return false;
+  }
+  SpinLockHolder l(&hooklist_spinlock);
+  AtomicWord hooks_end = base::subtle::NoBarrier_Load(&priv_end);
+  int index = 0;
+  while (index < hooks_end && value_as_t != bit_cast(
+             base::subtle::NoBarrier_Load(&priv_data[index]))) {
+    ++index;
+  }
+  if (index == hooks_end) {
+    return false;
+  }
+  base::subtle::NoBarrier_Store(&priv_data[index], 0);
+  FixupPrivEndLocked();
+  return true;
+}
+
+template 
+int HookList::Traverse(T* output_array, int n) const {
+  AtomicWord hooks_end = base::subtle::Acquire_Load(&priv_end);
+  int actual_hooks_end = 0;
+  for (int i = 0; i < hooks_end && n > 0; ++i) {
+    AtomicWord data = base::subtle::Acquire_Load(&priv_data[i]);
+    if (data != 0) {
+      *output_array++ = bit_cast(data);
+      ++actual_hooks_end;
+      --n;
+    }
+  }
+  return actual_hooks_end;
+}
+
+template 
+T HookList::ExchangeSingular(T value_as_t) {
+  AtomicWord value = bit_cast(value_as_t);
+  AtomicWord old_value;
+  SpinLockHolder l(&hooklist_spinlock);
+  old_value = base::subtle::NoBarrier_Load(&priv_data[kHookListSingularIdx]);
+  base::subtle::NoBarrier_Store(&priv_data[kHookListSingularIdx], value);
+  if (value != 0) {
+    base::subtle::NoBarrier_Store(&priv_end, kHookListSingularIdx + 1);
+  } else {
+    FixupPrivEndLocked();
+  }
+  return bit_cast(old_value);
+}
+
+// Initialize a HookList (optionally with the given initial_value in index 0).
+#define INIT_HOOK_LIST { 0 }
+#define INIT_HOOK_LIST_WITH_VALUE(initial_value)                \
+  { 1, { reinterpret_cast(initial_value) } }
+
+// Explicit instantiation for malloc_hook_test.cc.  This ensures all the methods
+// are instantiated.
+template struct HookList;
+
+HookList new_hooks_ =
+    INIT_HOOK_LIST_WITH_VALUE(&InitialNewHook);
+HookList delete_hooks_ = INIT_HOOK_LIST;
+HookList premmap_hooks_ =
+    INIT_HOOK_LIST_WITH_VALUE(&InitialPreMMapHook);
+HookList mmap_hooks_ = INIT_HOOK_LIST;
+HookList munmap_hooks_ = INIT_HOOK_LIST;
+HookList mremap_hooks_ = INIT_HOOK_LIST;
+HookList presbrk_hooks_ =
+    INIT_HOOK_LIST_WITH_VALUE(InitialPreSbrkHook);
+HookList sbrk_hooks_ = INIT_HOOK_LIST;
+
+// These lists contain either 0 or 1 hooks.
+HookList mmap_replacement_ = { 0 };
+HookList munmap_replacement_ = { 0 };
+
+#undef INIT_HOOK_LIST_WITH_VALUE
+#undef INIT_HOOK_LIST
+
+} }  // namespace base::internal
+
+using base::internal::kHookListMaxValues;
+using base::internal::new_hooks_;
+using base::internal::delete_hooks_;
+using base::internal::premmap_hooks_;
+using base::internal::mmap_hooks_;
+using base::internal::mmap_replacement_;
+using base::internal::munmap_hooks_;
+using base::internal::munmap_replacement_;
+using base::internal::mremap_hooks_;
+using base::internal::presbrk_hooks_;
+using base::internal::sbrk_hooks_;
+
+// These are available as C bindings as well as C++, hence their
+// definition outside the MallocHook class.
+extern "C"
+int MallocHook_AddNewHook(MallocHook_NewHook hook) {
+  RAW_VLOG(10, "AddNewHook(%p)", hook);
+  return new_hooks_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemoveNewHook(MallocHook_NewHook hook) {
+  RAW_VLOG(10, "RemoveNewHook(%p)", hook);
+  return new_hooks_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_AddDeleteHook(MallocHook_DeleteHook hook) {
+  RAW_VLOG(10, "AddDeleteHook(%p)", hook);
+  return delete_hooks_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemoveDeleteHook(MallocHook_DeleteHook hook) {
+  RAW_VLOG(10, "RemoveDeleteHook(%p)", hook);
+  return delete_hooks_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_AddPreMmapHook(MallocHook_PreMmapHook hook) {
+  RAW_VLOG(10, "AddPreMmapHook(%p)", hook);
+  return premmap_hooks_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemovePreMmapHook(MallocHook_PreMmapHook hook) {
+  RAW_VLOG(10, "RemovePreMmapHook(%p)", hook);
+  return premmap_hooks_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_SetMmapReplacement(MallocHook_MmapReplacement hook) {
+  RAW_VLOG(10, "SetMmapReplacement(%p)", hook);
+  // NOTE this is a best effort CHECK. Concurrent sets could succeed since
+  // this test is outside of the Add spin lock.
+  RAW_CHECK(mmap_replacement_.empty(), "Only one MMapReplacement is allowed.");
+  return mmap_replacement_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemoveMmapReplacement(MallocHook_MmapReplacement hook) {
+  RAW_VLOG(10, "RemoveMmapReplacement(%p)", hook);
+  return mmap_replacement_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_AddMmapHook(MallocHook_MmapHook hook) {
+  RAW_VLOG(10, "AddMmapHook(%p)", hook);
+  return mmap_hooks_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemoveMmapHook(MallocHook_MmapHook hook) {
+  RAW_VLOG(10, "RemoveMmapHook(%p)", hook);
+  return mmap_hooks_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_AddMunmapHook(MallocHook_MunmapHook hook) {
+  RAW_VLOG(10, "AddMunmapHook(%p)", hook);
+  return munmap_hooks_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemoveMunmapHook(MallocHook_MunmapHook hook) {
+  RAW_VLOG(10, "RemoveMunmapHook(%p)", hook);
+  return munmap_hooks_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_SetMunmapReplacement(MallocHook_MunmapReplacement hook) {
+  RAW_VLOG(10, "SetMunmapReplacement(%p)", hook);
+  // NOTE this is a best effort CHECK. Concurrent sets could succeed since
+  // this test is outside of the Add spin lock.
+  RAW_CHECK(munmap_replacement_.empty(),
+            "Only one MunmapReplacement is allowed.");
+  return munmap_replacement_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemoveMunmapReplacement(MallocHook_MunmapReplacement hook) {
+  RAW_VLOG(10, "RemoveMunmapReplacement(%p)", hook);
+  return munmap_replacement_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_AddMremapHook(MallocHook_MremapHook hook) {
+  RAW_VLOG(10, "AddMremapHook(%p)", hook);
+  return mremap_hooks_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemoveMremapHook(MallocHook_MremapHook hook) {
+  RAW_VLOG(10, "RemoveMremapHook(%p)", hook);
+  return mremap_hooks_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_AddPreSbrkHook(MallocHook_PreSbrkHook hook) {
+  RAW_VLOG(10, "AddPreSbrkHook(%p)", hook);
+  return presbrk_hooks_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemovePreSbrkHook(MallocHook_PreSbrkHook hook) {
+  RAW_VLOG(10, "RemovePreSbrkHook(%p)", hook);
+  return presbrk_hooks_.Remove(hook);
+}
+
+extern "C"
+int MallocHook_AddSbrkHook(MallocHook_SbrkHook hook) {
+  RAW_VLOG(10, "AddSbrkHook(%p)", hook);
+  return sbrk_hooks_.Add(hook);
+}
+
+extern "C"
+int MallocHook_RemoveSbrkHook(MallocHook_SbrkHook hook) {
+  RAW_VLOG(10, "RemoveSbrkHook(%p)", hook);
+  return sbrk_hooks_.Remove(hook);
+}
+
+// The code below is DEPRECATED.
+extern "C"
+MallocHook_NewHook MallocHook_SetNewHook(MallocHook_NewHook hook) {
+  RAW_VLOG(10, "SetNewHook(%p)", hook);
+  return new_hooks_.ExchangeSingular(hook);
+}
+
+extern "C"
+MallocHook_DeleteHook MallocHook_SetDeleteHook(MallocHook_DeleteHook hook) {
+  RAW_VLOG(10, "SetDeleteHook(%p)", hook);
+  return delete_hooks_.ExchangeSingular(hook);
+}
+
+extern "C"
+MallocHook_PreMmapHook MallocHook_SetPreMmapHook(MallocHook_PreMmapHook hook) {
+  RAW_VLOG(10, "SetPreMmapHook(%p)", hook);
+  return premmap_hooks_.ExchangeSingular(hook);
+}
+
+extern "C"
+MallocHook_MmapHook MallocHook_SetMmapHook(MallocHook_MmapHook hook) {
+  RAW_VLOG(10, "SetMmapHook(%p)", hook);
+  return mmap_hooks_.ExchangeSingular(hook);
+}
+
+extern "C"
+MallocHook_MunmapHook MallocHook_SetMunmapHook(MallocHook_MunmapHook hook) {
+  RAW_VLOG(10, "SetMunmapHook(%p)", hook);
+  return munmap_hooks_.ExchangeSingular(hook);
+}
+
+extern "C"
+MallocHook_MremapHook MallocHook_SetMremapHook(MallocHook_MremapHook hook) {
+  RAW_VLOG(10, "SetMremapHook(%p)", hook);
+  return mremap_hooks_.ExchangeSingular(hook);
+}
+
+extern "C"
+MallocHook_PreSbrkHook MallocHook_SetPreSbrkHook(MallocHook_PreSbrkHook hook) {
+  RAW_VLOG(10, "SetPreSbrkHook(%p)", hook);
+  return presbrk_hooks_.ExchangeSingular(hook);
+}
+
+extern "C"
+MallocHook_SbrkHook MallocHook_SetSbrkHook(MallocHook_SbrkHook hook) {
+  RAW_VLOG(10, "SetSbrkHook(%p)", hook);
+  return sbrk_hooks_.ExchangeSingular(hook);
+}
+// End of DEPRECATED code section.
+
+// Note: embedding the function calls inside the traversal of HookList would be
+// very confusing, as it is legal for a hook to remove itself and add other
+// hooks.  Doing traversal first, and then calling the hooks ensures we only
+// call the hooks registered at the start.
+#define INVOKE_HOOKS(HookType, hook_list, args) do {                    \
+    HookType hooks[kHookListMaxValues];                                 \
+    int num_hooks = hook_list.Traverse(hooks, kHookListMaxValues);      \
+    for (int i = 0; i < num_hooks; ++i) {                               \
+      (*hooks[i])args;                                                  \
+    }                                                                   \
+  } while (0)
+
+// There should only be one replacement. Return the result of the first
+// one, or false if there is none.
+#define INVOKE_REPLACEMENT(HookType, hook_list, args) do {              \
+    HookType hooks[kHookListMaxValues];                                 \
+    int num_hooks = hook_list.Traverse(hooks, kHookListMaxValues);      \
+    return (num_hooks > 0 && (*hooks[0])args);                          \
+  } while (0)
+
+
+void MallocHook::InvokeNewHookSlow(const void* p, size_t s) {
+  if (tcmalloc::IsEmergencyPtr(p)) {
+    return;
+  }
+  INVOKE_HOOKS(NewHook, new_hooks_, (p, s));
+}
+
+void MallocHook::InvokeDeleteHookSlow(const void* p) {
+  if (tcmalloc::IsEmergencyPtr(p)) {
+    return;
+  }
+  INVOKE_HOOKS(DeleteHook, delete_hooks_, (p));
+}
+
+void MallocHook::InvokePreMmapHookSlow(const void* start,
+                                       size_t size,
+                                       int protection,
+                                       int flags,
+                                       int fd,
+                                       off_t offset) {
+  INVOKE_HOOKS(PreMmapHook, premmap_hooks_, (start, size, protection, flags, fd,
+                                            offset));
+}
+
+void MallocHook::InvokeMmapHookSlow(const void* result,
+                                    const void* start,
+                                    size_t size,
+                                    int protection,
+                                    int flags,
+                                    int fd,
+                                    off_t offset) {
+  INVOKE_HOOKS(MmapHook, mmap_hooks_, (result, start, size, protection, flags,
+                                       fd, offset));
+}
+
+bool MallocHook::InvokeMmapReplacementSlow(const void* start,
+                                           size_t size,
+                                           int protection,
+                                           int flags,
+                                           int fd,
+                                           off_t offset,
+                                           void** result) {
+  INVOKE_REPLACEMENT(MmapReplacement, mmap_replacement_,
+                      (start, size, protection, flags, fd, offset, result));
+}
+
+void MallocHook::InvokeMunmapHookSlow(const void* p, size_t s) {
+  INVOKE_HOOKS(MunmapHook, munmap_hooks_, (p, s));
+}
+
+bool MallocHook::InvokeMunmapReplacementSlow(const void* p,
+                                             size_t s,
+                                             int* result) {
+  INVOKE_REPLACEMENT(MunmapReplacement, munmap_replacement_, (p, s, result));
+}
+
+void MallocHook::InvokeMremapHookSlow(const void* result,
+                                      const void* old_addr,
+                                      size_t old_size,
+                                      size_t new_size,
+                                      int flags,
+                                      const void* new_addr) {
+  INVOKE_HOOKS(MremapHook, mremap_hooks_, (result, old_addr, old_size, new_size,
+                                           flags, new_addr));
+}
+
+void MallocHook::InvokePreSbrkHookSlow(ptrdiff_t increment) {
+  INVOKE_HOOKS(PreSbrkHook, presbrk_hooks_, (increment));
+}
+
+void MallocHook::InvokeSbrkHookSlow(const void* result, ptrdiff_t increment) {
+  INVOKE_HOOKS(SbrkHook, sbrk_hooks_, (result, increment));
+}
+
+#undef INVOKE_HOOKS
+
+#ifndef NO_TCMALLOC_SAMPLES
+
+DEFINE_ATTRIBUTE_SECTION_VARS(google_malloc);
+DECLARE_ATTRIBUTE_SECTION_VARS(google_malloc);
+  // actual functions are in debugallocation.cc or tcmalloc.cc
+DEFINE_ATTRIBUTE_SECTION_VARS(malloc_hook);
+DECLARE_ATTRIBUTE_SECTION_VARS(malloc_hook);
+  // actual functions are in this file, malloc_hook.cc, and low_level_alloc.cc
+
+#define ADDR_IN_ATTRIBUTE_SECTION(addr, name) \
+  (reinterpret_cast(ATTRIBUTE_SECTION_START(name)) <= \
+     reinterpret_cast(addr) && \
+   reinterpret_cast(addr) < \
+     reinterpret_cast(ATTRIBUTE_SECTION_STOP(name)))
+
+// Return true iff 'caller' is a return address within a function
+// that calls one of our hooks via MallocHook:Invoke*.
+// A helper for GetCallerStackTrace.
+static inline bool InHookCaller(const void* caller) {
+  return ADDR_IN_ATTRIBUTE_SECTION(caller, google_malloc) ||
+         ADDR_IN_ATTRIBUTE_SECTION(caller, malloc_hook);
+  // We can use one section for everything except tcmalloc_or_debug
+  // due to its special linkage mode, which prevents merging of the sections.
+}
+
+#undef ADDR_IN_ATTRIBUTE_SECTION
+
+static bool checked_sections = false;
+
+static inline void CheckInHookCaller() {
+  if (!checked_sections) {
+    INIT_ATTRIBUTE_SECTION_VARS(google_malloc);
+    if (ATTRIBUTE_SECTION_START(google_malloc) ==
+        ATTRIBUTE_SECTION_STOP(google_malloc)) {
+      RAW_LOG(ERROR, "google_malloc section is missing, "
+                     "thus InHookCaller is broken!");
+    }
+    INIT_ATTRIBUTE_SECTION_VARS(malloc_hook);
+    if (ATTRIBUTE_SECTION_START(malloc_hook) ==
+        ATTRIBUTE_SECTION_STOP(malloc_hook)) {
+      RAW_LOG(ERROR, "malloc_hook section is missing, "
+                     "thus InHookCaller is broken!");
+    }
+    checked_sections = true;
+  }
+}
+
+#endif // !NO_TCMALLOC_SAMPLES
+
+// We can improve behavior/compactness of this function
+// if we pass a generic test function (with a generic arg)
+// into the implementations for GetStackTrace instead of the skip_count.
+extern "C" int MallocHook_GetCallerStackTrace(void** result, int max_depth,
+                                              int skip_count) {
+#if defined(NO_TCMALLOC_SAMPLES)
+  return 0;
+#elif !defined(HAVE_ATTRIBUTE_SECTION_START)
+  // Fall back to GetStackTrace and good old but fragile frame skip counts.
+  // Note: this path is inaccurate when a hook is not called directly by an
+  // allocation function but is daisy-chained through another hook,
+  // search for MallocHook::(Get|Set|Invoke)* to find such cases.
+  return GetStackTrace(result, max_depth, skip_count + int(DEBUG_MODE));
+  // due to -foptimize-sibling-calls in opt mode
+  // there's no need for extra frame skip here then
+#else
+  CheckInHookCaller();
+  // MallocHook caller determination via InHookCaller works, use it:
+  static const int kMaxSkip = 32 + 6 + 3;
+    // Constant tuned to do just one GetStackTrace call below in practice
+    // and not get many frames that we don't actually need:
+    // currently max passsed max_depth is 32,
+    // max passed/needed skip_count is 6
+    // and 3 is to account for some hook daisy chaining.
+  static const int kStackSize = kMaxSkip + 1;
+  void* stack[kStackSize];
+  int depth = GetStackTrace(stack, kStackSize, 1);  // skip this function frame
+  if (depth == 0)   // silenty propagate cases when GetStackTrace does not work
+    return 0;
+  for (int i = 0; i < depth; ++i) {  // stack[0] is our immediate caller
+    if (InHookCaller(stack[i])) {
+      // fast-path to slow-path calls may be implemented by compiler
+      // as non-tail calls. Causing two functions on stack trace to be
+      // inside google_malloc. In such case we're skipping to
+      // outermost such frame since this is where malloc stack frames
+      // really start.
+      while (i + 1 < depth && InHookCaller(stack[i+1])) {
+        i++;
+      }
+      RAW_VLOG(10, "Found hooked allocator at %d: %p <- %p",
+                   i, stack[i], stack[i+1]);
+      i += 1;  // skip hook caller frame
+      depth -= i;  // correct depth
+      if (depth > max_depth) depth = max_depth;
+      copy(stack + i, stack + i + depth, result);
+      if (depth < max_depth  &&  depth + i == kStackSize) {
+        // get frames for the missing depth
+        depth +=
+          GetStackTrace(result + depth, max_depth - depth, 1 + kStackSize);
+      }
+      return depth;
+    }
+  }
+  RAW_LOG(WARNING, "Hooked allocator frame not found, returning empty trace");
+    // If this happens try increasing kMaxSkip
+    // or else something must be wrong with InHookCaller,
+    // e.g. for every section used in InHookCaller
+    // all functions in that section must be inside the same library.
+  return 0;
+#endif
+}
+
+// On systems where we know how, we override mmap/munmap/mremap/sbrk
+// to provide support for calling the related hooks (in addition,
+// of course, to doing what these functions normally do).
+
+#if defined(__linux)
+# include "malloc_hook_mmap_linux.h"
+
+#elif defined(__FreeBSD__)
+# include "malloc_hook_mmap_freebsd.h"
+
+#else
+
+/*static*/void* MallocHook::UnhookedMMap(void *start, size_t length, int prot,
+                                         int flags, int fd, off_t offset) {
+  void* result;
+  if (!MallocHook::InvokeMmapReplacement(
+          start, length, prot, flags, fd, offset, &result)) {
+    result = mmap(start, length, prot, flags, fd, offset);
+  }
+  return result;
+}
+
+/*static*/int MallocHook::UnhookedMUnmap(void *start, size_t length) {
+  int result;
+  if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) {
+    result = munmap(start, length);
+  }
+  return result;
+}
+
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/malloc_hook_mmap_freebsd.h b/trunk/3rdparty/gperftools-2-fit/src/malloc_hook_mmap_freebsd.h
new file mode 100644
index 000000000..8575dcc7c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/malloc_hook_mmap_freebsd.h
@@ -0,0 +1,135 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Override mmap/munmap/mremap/sbrk to provide support for calling the
+// related hooks (in addition, of course, to doing what these
+// functions normally do).
+
+#ifndef __FreeBSD__
+# error Should only be including malloc_hook_mmap_freebsd.h on FreeBSD systems.
+#endif
+
+#include 
+#include 
+#include 
+#include 
+#include 
+
+// Make sure mmap doesn't get #define'd away by 
+#undef mmap
+
+// According to the FreeBSD documentation, use syscall if you do not
+// need 64-bit alignment otherwise use __syscall. Indeed, syscall
+// doesn't work correctly in most situations on 64-bit. It's return
+// type is 'int' so for things like SYS_mmap, it actually truncates
+// the returned address to 32-bits.
+#if defined(__amd64__) || defined(__x86_64__)
+# define MALLOC_HOOK_SYSCALL __syscall
+#else
+# define MALLOC_HOOK_SYSCALL syscall
+#endif
+
+
+extern "C" {
+  void* mmap(void *start, size_t length,int prot, int flags,
+             int fd, off_t offset) __THROW
+    ATTRIBUTE_SECTION(malloc_hook);
+  int munmap(void* start, size_t length) __THROW
+    ATTRIBUTE_SECTION(malloc_hook);
+  void* sbrk(intptr_t increment) __THROW
+    ATTRIBUTE_SECTION(malloc_hook);
+}
+
+static inline void* do_mmap(void *start, size_t length,
+                            int prot, int flags,
+                            int fd, off_t offset) __THROW {
+  return (void *)MALLOC_HOOK_SYSCALL(SYS_mmap,
+                                     start, length, prot, flags, fd, offset);
+}
+
+static inline void* do_sbrk(intptr_t increment) {
+  static void *(*libc_sbrk)(intptr_t);
+  if (libc_sbrk == NULL)
+    libc_sbrk = (void *(*)(intptr_t))dlsym(RTLD_NEXT, "sbrk");
+
+  return libc_sbrk(increment);
+}
+
+
+extern "C" void* mmap(void *start, size_t length, int prot, int flags,
+                      int fd, off_t offset) __THROW {
+  MallocHook::InvokePreMmapHook(start, length, prot, flags, fd, offset);
+  void *result;
+  if (!MallocHook::InvokeMmapReplacement(
+          start, length, prot, flags, fd, offset, &result)) {
+    result = do_mmap(start, length, prot, flags, fd,
+                       static_cast(offset)); // avoid sign extension
+  }
+  MallocHook::InvokeMmapHook(result, start, length, prot, flags, fd, offset);
+  return result;
+}
+
+extern "C" int munmap(void* start, size_t length) __THROW {
+  MallocHook::InvokeMunmapHook(start, length);
+  int result;
+  if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) {
+    result = MALLOC_HOOK_SYSCALL(SYS_munmap, start, length);
+  }
+
+  return result;
+}
+
+extern "C" void* sbrk(intptr_t increment) __THROW {
+  MallocHook::InvokePreSbrkHook(increment);
+  void *result = do_sbrk(increment);
+  MallocHook::InvokeSbrkHook(result, increment);
+  return result;
+}
+
+/*static*/void* MallocHook::UnhookedMMap(void *start, size_t length, int prot,
+                                         int flags, int fd, off_t offset) {
+  void* result;
+  if (!MallocHook::InvokeMmapReplacement(
+	  start, length, prot, flags, fd, offset, &result)) {
+    result = do_mmap(start, length, prot, flags, fd, offset);
+  }
+
+  return result;
+}
+
+/*static*/int MallocHook::UnhookedMUnmap(void *start, size_t length) {
+  int result;
+  if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) {
+    result = MALLOC_HOOK_SYSCALL(SYS_munmap, start, length);
+  }
+  return result;
+}
+
+#undef MALLOC_HOOK_SYSCALL
diff --git a/trunk/3rdparty/gperftools-2-fit/src/malloc_hook_mmap_linux.h b/trunk/3rdparty/gperftools-2-fit/src/malloc_hook_mmap_linux.h
new file mode 100644
index 000000000..cbf37825d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/malloc_hook_mmap_linux.h
@@ -0,0 +1,250 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+// We define mmap() and mmap64(), which somewhat reimplements libc's mmap
+// syscall stubs.  Unfortunately libc only exports the stubs via weak symbols
+// (which we're overriding with our mmap64() and mmap() wrappers) so we can't
+// just call through to them.
+
+#ifndef __linux
+# error Should only be including malloc_hook_mmap_linux.h on linux systems.
+#endif
+
+#include 
+#include 
+#include 
+#include 
+
+// The x86-32 case and the x86-64 case differ:
+// 32b has a mmap2() syscall, 64b does not.
+// 64b and 32b have different calling conventions for mmap().
+
+// I test for 64-bit first so I don't have to do things like
+// '#if (defined(__mips__) && !defined(__MIPS64__))' as a mips32 check.
+#if defined(__x86_64__) \
+    || defined(__PPC64__) \
+    || defined(__aarch64__) \
+    || (defined(_MIPS_SIM) && (_MIPS_SIM == _ABI64 || _MIPS_SIM == _ABIN32)) \
+    || defined(__s390__) || (defined(__riscv) && __riscv_xlen == 64) \
+    || defined(__e2k__)
+
+static inline void* do_mmap64(void *start, size_t length,
+                              int prot, int flags,
+                              int fd, off64_t offset) __THROW {
+#if defined(__s390__)
+  long args[6] = { (long)start, (long)length, (long)prot, (long)flags,
+                   (long)fd, (long)offset };
+  return (void*)syscall(SYS_mmap, args);
+#else
+  return (void*)syscall(SYS_mmap, start, length, prot, flags, fd, offset);
+#endif
+}
+
+#define MALLOC_HOOK_HAVE_DO_MMAP64 1
+
+#elif defined(__i386__) || defined(__PPC__) || defined(__mips__) || \
+      defined(__arm__)
+
+static inline void* do_mmap64(void *start, size_t length,
+                              int prot, int flags,
+                              int fd, off64_t offset) __THROW {
+  void *result;
+
+  // Try mmap2() unless it's not supported
+  static bool have_mmap2 = true;
+  if (have_mmap2) {
+    static int pagesize = 0;
+    if (!pagesize) pagesize = getpagesize();
+
+    // Check that the offset is page aligned
+    if (offset & (pagesize - 1)) {
+      result = MAP_FAILED;
+      errno = EINVAL;
+      goto out;
+    }
+
+    result = (void *)syscall(SYS_mmap2,
+                             start, length, prot, flags, fd,
+                             (off_t) (offset / pagesize));
+    if (result != MAP_FAILED || errno != ENOSYS)  goto out;
+
+    // We don't have mmap2() after all - don't bother trying it in future
+    have_mmap2 = false;
+  }
+
+  if (((off_t)offset) != offset) {
+    // If we're trying to map a 64-bit offset, fail now since we don't
+    // have 64-bit mmap() support.
+    result = MAP_FAILED;
+    errno = EINVAL;
+    goto out;
+  }
+
+#ifdef __NR_mmap
+  {
+    // Fall back to old 32-bit offset mmap() call
+    // Old syscall interface cannot handle six args, so pass in an array
+    int32 args[6] = { (int32) start, (int32) length, prot, flags, fd,
+                      (int32)(off_t) offset };
+    result = (void *)syscall(SYS_mmap, args);
+  }
+#else
+  // Some Linux ports like ARM EABI Linux has no mmap, just mmap2.
+  result = MAP_FAILED;
+#endif
+
+ out:
+  return result;
+}
+
+#define MALLOC_HOOK_HAVE_DO_MMAP64 1
+
+#endif  // #if defined(__x86_64__)
+
+
+#ifdef MALLOC_HOOK_HAVE_DO_MMAP64
+
+// We use do_mmap64 abstraction to put MallocHook::InvokeMmapHook
+// calls right into mmap and mmap64, so that the stack frames in the caller's
+// stack are at the same offsets for all the calls of memory allocating
+// functions.
+
+// Put all callers of MallocHook::Invoke* in this module into
+// malloc_hook section,
+// so that MallocHook::GetCallerStackTrace can function accurately:
+
+// Make sure mmap64 and mmap doesn't get #define'd away by 
+# undef mmap64
+# undef mmap
+
+extern "C" {
+  void* mmap64(void *start, size_t length, int prot, int flags,
+               int fd, off64_t offset  ) __THROW
+    ATTRIBUTE_SECTION(malloc_hook);
+  void* mmap(void *start, size_t length,int prot, int flags,
+             int fd, off_t offset) __THROW
+    ATTRIBUTE_SECTION(malloc_hook);
+  int munmap(void* start, size_t length) __THROW
+    ATTRIBUTE_SECTION(malloc_hook);
+  void* mremap(void* old_addr, size_t old_size, size_t new_size,
+               int flags, ...) __THROW
+    ATTRIBUTE_SECTION(malloc_hook);
+  void* sbrk(intptr_t increment) __THROW
+    ATTRIBUTE_SECTION(malloc_hook);
+}
+
+extern "C" void* mmap64(void *start, size_t length, int prot, int flags,
+                        int fd, off64_t offset) __THROW {
+  MallocHook::InvokePreMmapHook(start, length, prot, flags, fd, offset);
+  void *result;
+  if (!MallocHook::InvokeMmapReplacement(
+          start, length, prot, flags, fd, offset, &result)) {
+    result = do_mmap64(start, length, prot, flags, fd, offset);
+  }
+  MallocHook::InvokeMmapHook(result, start, length, prot, flags, fd, offset);
+  return result;
+}
+
+# if !defined(__USE_FILE_OFFSET64) || !defined(__REDIRECT_NTH)
+
+extern "C" void* mmap(void *start, size_t length, int prot, int flags,
+                      int fd, off_t offset) __THROW {
+  MallocHook::InvokePreMmapHook(start, length, prot, flags, fd, offset);
+  void *result;
+  if (!MallocHook::InvokeMmapReplacement(
+          start, length, prot, flags, fd, offset, &result)) {
+    result = do_mmap64(start, length, prot, flags, fd,
+                       static_cast(offset)); // avoid sign extension
+  }
+  MallocHook::InvokeMmapHook(result, start, length, prot, flags, fd, offset);
+  return result;
+}
+
+# endif  // !defined(__USE_FILE_OFFSET64) || !defined(__REDIRECT_NTH)
+
+extern "C" int munmap(void* start, size_t length) __THROW {
+  MallocHook::InvokeMunmapHook(start, length);
+  int result;
+  if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) {
+    result = syscall(SYS_munmap, start, length);
+  }
+  return result;
+}
+
+extern "C" void* mremap(void* old_addr, size_t old_size, size_t new_size,
+                        int flags, ...) __THROW {
+  va_list ap;
+  va_start(ap, flags);
+  void *new_address = va_arg(ap, void *);
+  va_end(ap);
+  void* result = (void*)syscall(SYS_mremap, old_addr, old_size, new_size, flags,
+                                new_address);
+  MallocHook::InvokeMremapHook(result, old_addr, old_size, new_size, flags,
+                               new_address);
+  return result;
+}
+
+#ifdef HAVE___SBRK
+// libc's version:
+extern "C" void* __sbrk(intptr_t increment);
+
+extern "C" void* sbrk(intptr_t increment) __THROW {
+  MallocHook::InvokePreSbrkHook(increment);
+  void *result = __sbrk(increment);
+  MallocHook::InvokeSbrkHook(result, increment);
+  return result;
+}
+
+#endif
+
+/*static*/void* MallocHook::UnhookedMMap(void *start, size_t length, int prot,
+                                         int flags, int fd, off_t offset) {
+  void* result;
+  if (!MallocHook::InvokeMmapReplacement(
+          start, length, prot, flags, fd, offset, &result)) {
+    result = do_mmap64(start, length, prot, flags, fd, offset);
+  }
+  return result;
+}
+
+/*static*/int MallocHook::UnhookedMUnmap(void *start, size_t length) {
+  int result;
+  if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) {
+    result = syscall(SYS_munmap, start, length);
+  }
+  return result;
+}
+
+#undef MALLOC_HOOK_HAVE_DO_MMAP64
+
+#endif  // #ifdef MALLOC_HOOK_HAVE_DO_MMAP64
diff --git a/trunk/3rdparty/gperftools-2-fit/src/maybe_emergency_malloc.h b/trunk/3rdparty/gperftools-2-fit/src/maybe_emergency_malloc.h
new file mode 100644
index 000000000..250ecf01a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/maybe_emergency_malloc.h
@@ -0,0 +1,55 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2014, gperftools Contributors
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef MAYBE_EMERGENCY_MALLOC_H
+#define MAYBE_EMERGENCY_MALLOC_H
+
+#include "config.h"
+
+#ifdef ENABLE_EMERGENCY_MALLOC
+
+#include "emergency_malloc.h"
+
+#else
+
+namespace tcmalloc {
+  static inline void *EmergencyMalloc(size_t size) {return NULL;}
+  static inline void EmergencyFree(void *p) {}
+  static inline void *EmergencyCalloc(size_t n, size_t elem_size) {return NULL;}
+  static inline void *EmergencyRealloc(void *old_ptr, size_t new_size) {return NULL;}
+
+  static inline bool IsEmergencyPtr(const void *_ptr) {
+    return false;
+  }
+}
+
+#endif // ENABLE_EMERGENCY_MALLOC
+
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/maybe_threads.cc b/trunk/3rdparty/gperftools-2-fit/src/maybe_threads.cc
new file mode 100644
index 000000000..f973fbfc3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/maybe_threads.cc
@@ -0,0 +1,177 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Paul Menage 
+//
+// Some wrappers for pthread functions so that we can be LD_PRELOADed
+// against non-pthreads apps.
+//
+// This module will behave very strangely if some pthreads functions
+// exist and others don't.
+
+#include "config.h"
+#include 
+#include     // for memcmp
+#include      // for __isthreaded on FreeBSD
+// We don't actually need strings. But including this header seems to
+// stop the compiler trying to short-circuit our pthreads existence
+// tests and claiming that the address of a function is always
+// non-zero. I have no idea why ...
+#include 
+#include "maybe_threads.h"
+#include "base/basictypes.h"
+#include "base/logging.h"
+
+// __THROW is defined in glibc systems.  It means, counter-intuitively,
+// "This function will never throw an exception."  It's an optional
+// optimization tool, but we may need to use it to match glibc prototypes.
+#ifndef __THROW    // I guess we're not on a glibc system
+# define __THROW   // __THROW is just an optimization, so ok to make it ""
+#endif
+
+// These are the methods we're going to conditionally include.
+extern "C" {
+  int pthread_key_create (pthread_key_t*, void (*)(void*))
+      __THROW ATTRIBUTE_WEAK;
+  int pthread_key_delete (pthread_key_t)
+      __THROW ATTRIBUTE_WEAK;
+  void *pthread_getspecific(pthread_key_t)
+      __THROW ATTRIBUTE_WEAK;
+  int pthread_setspecific(pthread_key_t, const void*)
+      __THROW ATTRIBUTE_WEAK;
+  int pthread_once(pthread_once_t *, void (*)(void))
+      ATTRIBUTE_WEAK;
+#ifdef HAVE_FORK
+  int pthread_atfork(void (*__prepare) (void),
+                     void (*__parent) (void),
+                     void (*__child) (void))
+    __THROW ATTRIBUTE_WEAK;
+#endif
+}
+
+#define MAX_PERTHREAD_VALS 16
+static void *perftools_pthread_specific_vals[MAX_PERTHREAD_VALS];
+static int next_key;
+
+// NOTE: it's similar to bitcast defined in basic_types.h with
+// exception of ignoring sizes mismatch
+template 
+static T2 memcpy_cast(const T1 &input) {
+  T2 output;
+  size_t s = sizeof(input);
+  if (sizeof(output) < s) {
+    s = sizeof(output);
+  }
+  memcpy(&output, &input, s);
+  return output;
+}
+
+int perftools_pthread_key_create(pthread_key_t *key,
+                                 void (*destr_function) (void *)) {
+  if (pthread_key_create) {
+    return pthread_key_create(key, destr_function);
+  } else {
+    assert(next_key < MAX_PERTHREAD_VALS);
+    *key = memcpy_cast(next_key++);
+    return 0;
+  }
+}
+
+int perftools_pthread_key_delete(pthread_key_t key) {
+  if (pthread_key_delete) {
+    return pthread_key_delete(key);
+  } else {
+    return 0;
+  }
+}
+
+void *perftools_pthread_getspecific(pthread_key_t key) {
+  if (pthread_getspecific) {
+    return pthread_getspecific(key);
+  } else {
+    return perftools_pthread_specific_vals[memcpy_cast(key)];
+  }
+}
+
+int perftools_pthread_setspecific(pthread_key_t key, void *val) {
+  if (pthread_setspecific) {
+    return pthread_setspecific(key, val);
+  } else {
+    perftools_pthread_specific_vals[memcpy_cast(key)] = val;
+    return 0;
+  }
+}
+
+
+static pthread_once_t pthread_once_init = PTHREAD_ONCE_INIT;
+int perftools_pthread_once(pthread_once_t *ctl,
+                           void  (*init_routine) (void)) {
+#ifdef __FreeBSD__
+  // On __FreeBSD__, calling pthread_once on a system that is not
+  // linked with -pthread is silently a noop. :-( Luckily, we have a
+  // workaround: FreeBSD exposes __isthreaded in , which is
+  // set to 1 when the first thread is spawned.  So on those systems,
+  // we can use our own separate pthreads-once mechanism, which is
+  // used until __isthreaded is 1 (which will never be true if the app
+  // is not linked with -pthread).
+  static bool pthread_once_ran_before_threads = false;
+  if (pthread_once_ran_before_threads) {
+    return 0;
+  }
+  if (!__isthreaded) {
+    init_routine();
+    pthread_once_ran_before_threads = true;
+    return 0;
+  }
+#endif
+  if (pthread_once) {
+    return pthread_once(ctl, init_routine);
+  } else {
+    if (memcmp(ctl, &pthread_once_init, sizeof(*ctl)) == 0) {
+      init_routine();
+      ++*(char*)(ctl);        // make it so it's no longer equal to init
+    }
+    return 0;
+  }
+}
+
+#ifdef HAVE_FORK
+
+void perftools_pthread_atfork(void (*before)(),
+                              void (*parent_after)(),
+                              void (*child_after)()) {
+  if (pthread_atfork) {
+    int rv = pthread_atfork(before, parent_after, child_after);
+    CHECK(rv == 0);
+  }
+}
+
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/maybe_threads.h b/trunk/3rdparty/gperftools-2-fit/src/maybe_threads.h
new file mode 100644
index 000000000..00f69690c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/maybe_threads.h
@@ -0,0 +1,61 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Paul Menage 
+
+//-------------------------------------------------------------------
+// Some wrappers for pthread functions so that we can be LD_PRELOADed
+// against non-pthreads apps.
+//-------------------------------------------------------------------
+
+#ifndef GOOGLE_MAYBE_THREADS_H_
+#define GOOGLE_MAYBE_THREADS_H_
+
+#ifdef HAVE_PTHREAD
+#include 
+#endif
+
+int perftools_pthread_key_create(pthread_key_t *key,
+                                 void (*destr_function) (void *));
+int perftools_pthread_key_delete(pthread_key_t key);
+void *perftools_pthread_getspecific(pthread_key_t key);
+int perftools_pthread_setspecific(pthread_key_t key, void *val);
+int perftools_pthread_once(pthread_once_t *ctl,
+                           void  (*init_routine) (void));
+
+// Our wrapper for pthread_atfork. Does _nothing_ when there are no
+// threads. See static_vars.cc:SetupAtForkLocksHandler for only user
+// of this.
+void perftools_pthread_atfork(void (*before)(),
+                              void (*parent_after)(),
+                              void (*child_after)());
+
+#endif  /* GOOGLE_MAYBE_THREADS_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/memfs_malloc.cc b/trunk/3rdparty/gperftools-2-fit/src/memfs_malloc.cc
new file mode 100644
index 000000000..ef0ba5cca
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/memfs_malloc.cc
@@ -0,0 +1,279 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Arun Sharma
+//
+// A tcmalloc system allocator that uses a memory based filesystem such as
+// tmpfs or hugetlbfs
+//
+// Since these only exist on linux, we only register this allocator there.
+
+#ifdef __linux
+
+#include 
+#include                       // for errno, EINVAL
+#include                    // for PRId64
+#include                      // for PATH_MAX
+#include                      // for size_t, NULL
+#ifdef HAVE_STDINT_H
+#include                      // for int64_t, uintptr_t
+#endif
+#include                       // for snprintf
+#include                      // for mkstemp
+#include                      // for strerror
+#include                    // for mmap, MAP_FAILED, etc
+#include                  // for fstatfs, statfs
+#include                      // for ftruncate, off_t, unlink
+#include                           // for operator new
+#include 
+
+#include 
+#include "base/basictypes.h"
+#include "base/googleinit.h"
+#include "base/sysinfo.h"
+#include "internal_logging.h"
+
+// TODO(sanjay): Move the code below into the tcmalloc namespace
+using tcmalloc::kLog;
+using tcmalloc::kCrash;
+using tcmalloc::Log;
+using std::string;
+
+DEFINE_string(memfs_malloc_path, EnvToString("TCMALLOC_MEMFS_MALLOC_PATH", ""),
+              "Path where hugetlbfs or tmpfs is mounted. The caller is "
+              "responsible for ensuring that the path is unique and does "
+              "not conflict with another process");
+DEFINE_int64(memfs_malloc_limit_mb,
+             EnvToInt("TCMALLOC_MEMFS_LIMIT_MB", 0),
+             "Limit total allocation size to the "
+             "specified number of MiB.  0 == no limit.");
+DEFINE_bool(memfs_malloc_abort_on_fail,
+            EnvToBool("TCMALLOC_MEMFS_ABORT_ON_FAIL", false),
+            "abort() whenever memfs_malloc fails to satisfy an allocation "
+            "for any reason.");
+DEFINE_bool(memfs_malloc_ignore_mmap_fail,
+            EnvToBool("TCMALLOC_MEMFS_IGNORE_MMAP_FAIL", false),
+            "Ignore failures from mmap");
+DEFINE_bool(memfs_malloc_map_private,
+            EnvToBool("TCMALLOC_MEMFS_MAP_PRIVATE", false),
+	    "Use MAP_PRIVATE with mmap");
+DEFINE_bool(memfs_malloc_disable_fallback,
+            EnvToBool("TCMALLOC_MEMFS_DISABLE_FALLBACK", false),
+            "If we run out of hugepage memory don't fallback to default "
+            "allocator.");
+
+// Hugetlbfs based allocator for tcmalloc
+class HugetlbSysAllocator: public SysAllocator {
+public:
+  explicit HugetlbSysAllocator(SysAllocator* fallback)
+    : failed_(true),  // To disable allocator until Initialize() is called.
+      big_page_size_(0),
+      hugetlb_fd_(-1),
+      hugetlb_base_(0),
+      fallback_(fallback) {
+  }
+
+  void* Alloc(size_t size, size_t *actual_size, size_t alignment);
+  bool Initialize();
+
+  bool failed_;          // Whether failed to allocate memory.
+
+private:
+  void* AllocInternal(size_t size, size_t *actual_size, size_t alignment);
+
+  int64 big_page_size_;
+  int hugetlb_fd_;       // file descriptor for hugetlb
+  off_t hugetlb_base_;
+
+  SysAllocator* fallback_;  // Default system allocator to fall back to.
+};
+static union {
+  char buf[sizeof(HugetlbSysAllocator)];
+  void *ptr;
+} hugetlb_space;
+
+// No locking needed here since we assume that tcmalloc calls
+// us with an internal lock held (see tcmalloc/system-alloc.cc).
+void* HugetlbSysAllocator::Alloc(size_t size, size_t *actual_size,
+                                 size_t alignment) {
+  if (!FLAGS_memfs_malloc_disable_fallback && failed_) {
+    return fallback_->Alloc(size, actual_size, alignment);
+  }
+
+  // We don't respond to allocation requests smaller than big_page_size_ unless
+  // the caller is ok to take more than they asked for. Used by MetaDataAlloc.
+  if (!FLAGS_memfs_malloc_disable_fallback &&
+      actual_size == NULL && size < big_page_size_) {
+    return fallback_->Alloc(size, actual_size, alignment);
+  }
+
+  // Enforce huge page alignment.  Be careful to deal with overflow.
+  size_t new_alignment = alignment;
+  if (new_alignment < big_page_size_) new_alignment = big_page_size_;
+  size_t aligned_size = ((size + new_alignment - 1) /
+                         new_alignment) * new_alignment;
+  if (!FLAGS_memfs_malloc_disable_fallback && aligned_size < size) {
+    return fallback_->Alloc(size, actual_size, alignment);
+  }
+
+  void* result = AllocInternal(aligned_size, actual_size, new_alignment);
+  if (result != NULL) {
+    return result;
+  } else if (FLAGS_memfs_malloc_disable_fallback) {
+    return NULL;
+  }
+  Log(kLog, __FILE__, __LINE__,
+      "HugetlbSysAllocator: (failed, allocated)", failed_, hugetlb_base_);
+  if (FLAGS_memfs_malloc_abort_on_fail) {
+    Log(kCrash, __FILE__, __LINE__,
+        "memfs_malloc_abort_on_fail is set");
+  }
+  return fallback_->Alloc(size, actual_size, alignment);
+}
+
+void* HugetlbSysAllocator::AllocInternal(size_t size, size_t* actual_size,
+                                         size_t alignment) {
+  // Ask for extra memory if alignment > pagesize
+  size_t extra = 0;
+  if (alignment > big_page_size_) {
+    extra = alignment - big_page_size_;
+  }
+
+  // Test if this allocation would put us over the limit.
+  off_t limit = FLAGS_memfs_malloc_limit_mb*1024*1024;
+  if (limit > 0 && hugetlb_base_ + size + extra > limit) {
+    // Disable the allocator when there's less than one page left.
+    if (limit - hugetlb_base_ < big_page_size_) {
+      Log(kLog, __FILE__, __LINE__, "reached memfs_malloc_limit_mb");
+      failed_ = true;
+    }
+    else {
+      Log(kLog, __FILE__, __LINE__,
+          "alloc too large (size, bytes left)", size, limit-hugetlb_base_);
+    }
+    return NULL;
+  }
+
+  // This is not needed for hugetlbfs, but needed for tmpfs.  Annoyingly
+  // hugetlbfs returns EINVAL for ftruncate.
+  int ret = ftruncate(hugetlb_fd_, hugetlb_base_ + size + extra);
+  if (ret != 0 && errno != EINVAL) {
+    Log(kLog, __FILE__, __LINE__,
+        "ftruncate failed", strerror(errno));
+    failed_ = true;
+    return NULL;
+  }
+
+  // Note: size + extra does not overflow since:
+  //            size + alignment < (1<(MAP_FAILED)) {
+    if (!FLAGS_memfs_malloc_ignore_mmap_fail) {
+      Log(kLog, __FILE__, __LINE__,
+          "mmap failed (size, error)", size + extra, strerror(errno));
+      failed_ = true;
+    }
+    return NULL;
+  }
+  uintptr_t ptr = reinterpret_cast(result);
+
+  // Adjust the return memory so it is aligned
+  size_t adjust = 0;
+  if ((ptr & (alignment - 1)) != 0) {
+    adjust = alignment - (ptr & (alignment - 1));
+  }
+  ptr += adjust;
+  hugetlb_base_ += (size + extra);
+
+  if (actual_size) {
+    *actual_size = size + extra - adjust;
+  }
+
+  return reinterpret_cast(ptr);
+}
+
+bool HugetlbSysAllocator::Initialize() {
+  char path[PATH_MAX];
+  const int pathlen = FLAGS_memfs_malloc_path.size();
+  if (pathlen + 8 > sizeof(path)) {
+    Log(kCrash, __FILE__, __LINE__, "XX fatal: memfs_malloc_path too long");
+    return false;
+  }
+  memcpy(path, FLAGS_memfs_malloc_path.data(), pathlen);
+  memcpy(path + pathlen, ".XXXXXX", 8);  // Also copies terminating \0
+
+  int hugetlb_fd = mkstemp(path);
+  if (hugetlb_fd == -1) {
+    Log(kLog, __FILE__, __LINE__,
+        "warning: unable to create memfs_malloc_path",
+        path, strerror(errno));
+    return false;
+  }
+
+  // Cleanup memory on process exit
+  if (unlink(path) == -1) {
+    Log(kCrash, __FILE__, __LINE__,
+        "fatal: error unlinking memfs_malloc_path", path, strerror(errno));
+    return false;
+  }
+
+  // Use fstatfs to figure out the default page size for memfs
+  struct statfs sfs;
+  if (fstatfs(hugetlb_fd, &sfs) == -1) {
+    Log(kCrash, __FILE__, __LINE__,
+        "fatal: error fstatfs of memfs_malloc_path", strerror(errno));
+    return false;
+  }
+  int64 page_size = sfs.f_bsize;
+
+  hugetlb_fd_ = hugetlb_fd;
+  big_page_size_ = page_size;
+  failed_ = false;
+  return true;
+}
+
+REGISTER_MODULE_INITIALIZER(memfs_malloc, {
+  if (FLAGS_memfs_malloc_path.length()) {
+    SysAllocator* alloc = MallocExtension::instance()->GetSystemAllocator();
+    HugetlbSysAllocator* hp =
+      new (hugetlb_space.buf) HugetlbSysAllocator(alloc);
+    if (hp->Initialize()) {
+      MallocExtension::instance()->SetSystemAllocator(hp);
+    }
+  }
+});
+
+#endif   /* ifdef __linux */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/memory_region_map.cc b/trunk/3rdparty/gperftools-2-fit/src/memory_region_map.cc
new file mode 100644
index 000000000..5fb17d3ba
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/memory_region_map.cc
@@ -0,0 +1,838 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Maxim Lifantsev
+ */
+
+//
+// Background and key design points of MemoryRegionMap.
+//
+// MemoryRegionMap is a low-level module with quite atypical requirements that
+// result in some degree of non-triviality of the implementation and design.
+//
+// MemoryRegionMap collects info about *all* memory regions created with
+// mmap, munmap, mremap, sbrk.
+// They key word above is 'all': all that are happening in a process
+// during its lifetime frequently starting even before global object
+// constructor execution.
+//
+// This is needed by the primary client of MemoryRegionMap:
+// HeapLeakChecker uses the regions and the associated stack traces
+// to figure out what part of the memory is the heap:
+// if MemoryRegionMap were to miss some (early) regions, leak checking would
+// stop working correctly.
+//
+// To accomplish the goal of functioning before/during global object
+// constructor execution MemoryRegionMap is done as a singleton service
+// that relies on own on-demand initialized static constructor-less data,
+// and only relies on other low-level modules that can also function properly
+// even before global object constructors run.
+//
+// Accomplishing the goal of collecting data about all mmap, munmap, mremap,
+// sbrk occurrences is a more involved: conceptually to do this one needs to
+// record some bits of data in particular about any mmap or sbrk call,
+// but to do that one needs to allocate memory for that data at some point,
+// but all memory allocations in the end themselves come from an mmap
+// or sbrk call (that's how the address space of the process grows).
+//
+// Also note that we need to do all the above recording from
+// within an mmap/sbrk hook which is sometimes/frequently is made by a memory
+// allocator, including the allocator MemoryRegionMap itself must rely on.
+// In the case of heap-checker usage this includes even the very first
+// mmap/sbrk call happening in the program: heap-checker gets activated due to
+// a link-time installed mmap/sbrk hook and it initializes MemoryRegionMap
+// and asks it to record info about this very first call right from that
+// very first hook invocation.
+//
+// MemoryRegionMap is doing its memory allocations via LowLevelAlloc:
+// unlike more complex standard memory allocator, LowLevelAlloc cooperates with
+// MemoryRegionMap by not holding any of its own locks while it calls mmap
+// to get memory, thus we are able to call LowLevelAlloc from
+// our mmap/sbrk hooks without causing a deadlock in it.
+// For the same reason of deadlock prevention the locking in MemoryRegionMap
+// itself is write-recursive which is an exception to Google's mutex usage.
+//
+// We still need to break the infinite cycle of mmap calling our hook,
+// which asks LowLevelAlloc for memory to record this mmap,
+// which (sometimes) causes mmap, which calls our hook, and so on.
+// We do this as follows: on a recursive call of MemoryRegionMap's
+// mmap/sbrk/mremap hook we record the data about the allocation in a
+// static fixed-sized stack (saved_regions and saved_buckets), when the
+// recursion unwinds but before returning from the outer hook call we unwind
+// this stack and move the data from saved_regions and saved_buckets to its
+// permanent place in the RegionSet and "bucket_table" respectively,
+// which can cause more allocations and mmap-s and recursion and unwinding,
+// but the whole process ends eventually due to the fact that for the small
+// allocations we are doing LowLevelAlloc reuses one mmap call and parcels out
+// the memory it created to satisfy several of our allocation requests.
+//
+
+// ========================================================================= //
+
+#include 
+
+#ifdef HAVE_UNISTD_H
+#include 
+#endif
+#ifdef HAVE_INTTYPES_H
+#include 
+#endif
+#ifdef HAVE_MMAP
+#include 
+#elif !defined(MAP_FAILED)
+#define MAP_FAILED -1  // the only thing we need from mman.h
+#endif
+#ifdef HAVE_PTHREAD
+#include    // for pthread_t, pthread_self()
+#endif
+#include 
+
+#include 
+#include 
+
+#include "memory_region_map.h"
+
+#include "base/googleinit.h"
+#include "base/logging.h"
+#include "base/low_level_alloc.h"
+#include "malloc_hook-inl.h"
+
+#include 
+#include 
+
+// MREMAP_FIXED is a linux extension.  How it's used in this file,
+// setting it to 0 is equivalent to saying, "This feature isn't
+// supported", which is right.
+#ifndef MREMAP_FIXED
+# define MREMAP_FIXED  0
+#endif
+
+using std::max;
+
+// ========================================================================= //
+
+int MemoryRegionMap::client_count_ = 0;
+int MemoryRegionMap::max_stack_depth_ = 0;
+MemoryRegionMap::RegionSet* MemoryRegionMap::regions_ = NULL;
+LowLevelAlloc::Arena* MemoryRegionMap::arena_ = NULL;
+SpinLock MemoryRegionMap::lock_(SpinLock::LINKER_INITIALIZED);
+SpinLock MemoryRegionMap::owner_lock_(  // ACQUIRED_AFTER(lock_)
+    SpinLock::LINKER_INITIALIZED);
+int MemoryRegionMap::recursion_count_ = 0;  // GUARDED_BY(owner_lock_)
+pthread_t MemoryRegionMap::lock_owner_tid_;  // GUARDED_BY(owner_lock_)
+int64 MemoryRegionMap::map_size_ = 0;
+int64 MemoryRegionMap::unmap_size_ = 0;
+HeapProfileBucket** MemoryRegionMap::bucket_table_ = NULL;  // GUARDED_BY(lock_)
+int MemoryRegionMap::num_buckets_ = 0;  // GUARDED_BY(lock_)
+int MemoryRegionMap::saved_buckets_count_ = 0;  // GUARDED_BY(lock_)
+HeapProfileBucket MemoryRegionMap::saved_buckets_[20];  // GUARDED_BY(lock_)
+
+// GUARDED_BY(lock_)
+const void* MemoryRegionMap::saved_buckets_keys_[20][kMaxStackDepth];
+
+// ========================================================================= //
+
+// Simple hook into execution of global object constructors,
+// so that we do not call pthread_self() when it does not yet work.
+static bool libpthread_initialized = false;
+REGISTER_MODULE_INITIALIZER(libpthread_initialized_setter,
+                            libpthread_initialized = true);
+
+static inline bool current_thread_is(pthread_t should_be) {
+  // Before main() runs, there's only one thread, so we're always that thread
+  if (!libpthread_initialized) return true;
+  // this starts working only sometime well into global constructor execution:
+  return pthread_equal(pthread_self(), should_be);
+}
+
+// ========================================================================= //
+
+// Constructor-less place-holder to store a RegionSet in.
+union MemoryRegionMap::RegionSetRep {
+  char rep[sizeof(RegionSet)];
+  void* align_it;  // do not need a better alignment for 'rep' than this
+  RegionSet* region_set() { return reinterpret_cast(rep); }
+};
+
+// The bytes where MemoryRegionMap::regions_ will point to.
+// We use RegionSetRep with noop c-tor so that global construction
+// does not interfere.
+static MemoryRegionMap::RegionSetRep regions_rep;
+
+// ========================================================================= //
+
+// Has InsertRegionLocked been called recursively
+// (or rather should we *not* use regions_ to record a hooked mmap).
+static bool recursive_insert = false;
+
+void MemoryRegionMap::Init(int max_stack_depth, bool use_buckets) {
+  RAW_VLOG(10, "MemoryRegionMap Init");
+  RAW_CHECK(max_stack_depth >= 0, "");
+  // Make sure we don't overflow the memory in region stacks:
+  RAW_CHECK(max_stack_depth <= kMaxStackDepth,
+            "need to increase kMaxStackDepth?");
+  Lock();
+  client_count_ += 1;
+  max_stack_depth_ = max(max_stack_depth_, max_stack_depth);
+  if (client_count_ > 1) {
+    // not first client: already did initialization-proper
+    Unlock();
+    RAW_VLOG(10, "MemoryRegionMap Init increment done");
+    return;
+  }
+  // Set our hooks and make sure they were installed:
+  RAW_CHECK(MallocHook::AddMmapHook(&MmapHook), "");
+  RAW_CHECK(MallocHook::AddMremapHook(&MremapHook), "");
+  RAW_CHECK(MallocHook::AddSbrkHook(&SbrkHook), "");
+  RAW_CHECK(MallocHook::AddMunmapHook(&MunmapHook), "");
+  // We need to set recursive_insert since the NewArena call itself
+  // will already do some allocations with mmap which our hooks will catch
+  // recursive_insert allows us to buffer info about these mmap calls.
+  // Note that Init() can be (and is) sometimes called
+  // already from within an mmap/sbrk hook.
+  recursive_insert = true;
+  arena_ = LowLevelAlloc::NewArena(0, LowLevelAlloc::DefaultArena());
+  recursive_insert = false;
+  HandleSavedRegionsLocked(&InsertRegionLocked);  // flush the buffered ones
+    // Can't instead use HandleSavedRegionsLocked(&DoInsertRegionLocked) before
+    // recursive_insert = false; as InsertRegionLocked will also construct
+    // regions_ on demand for us.
+  if (use_buckets) {
+    const int table_bytes = kHashTableSize * sizeof(*bucket_table_);
+    recursive_insert = true;
+    bucket_table_ = static_cast(
+        MyAllocator::Allocate(table_bytes));
+    recursive_insert = false;
+    memset(bucket_table_, 0, table_bytes);
+    num_buckets_ = 0;
+  }
+  if (regions_ == NULL) {  // init regions_
+    InitRegionSetLocked();
+  }
+  Unlock();
+  RAW_VLOG(10, "MemoryRegionMap Init done");
+}
+
+bool MemoryRegionMap::Shutdown() {
+  RAW_VLOG(10, "MemoryRegionMap Shutdown");
+  Lock();
+  RAW_CHECK(client_count_ > 0, "");
+  client_count_ -= 1;
+  if (client_count_ != 0) {  // not last client; need not really shutdown
+    Unlock();
+    RAW_VLOG(10, "MemoryRegionMap Shutdown decrement done");
+    return true;
+  }
+  if (bucket_table_ != NULL) {
+    for (int i = 0; i < kHashTableSize; i++) {
+      for (HeapProfileBucket* curr = bucket_table_[i]; curr != 0; /**/) {
+        HeapProfileBucket* bucket = curr;
+        curr = curr->next;
+        MyAllocator::Free(bucket->stack, 0);
+        MyAllocator::Free(bucket, 0);
+      }
+    }
+    MyAllocator::Free(bucket_table_, 0);
+    num_buckets_ = 0;
+    bucket_table_ = NULL;
+  }
+  RAW_CHECK(MallocHook::RemoveMmapHook(&MmapHook), "");
+  RAW_CHECK(MallocHook::RemoveMremapHook(&MremapHook), "");
+  RAW_CHECK(MallocHook::RemoveSbrkHook(&SbrkHook), "");
+  RAW_CHECK(MallocHook::RemoveMunmapHook(&MunmapHook), "");
+  if (regions_) regions_->~RegionSet();
+  regions_ = NULL;
+  bool deleted_arena = LowLevelAlloc::DeleteArena(arena_);
+  if (deleted_arena) {
+    arena_ = 0;
+  } else {
+    RAW_LOG(WARNING, "Can't delete LowLevelAlloc arena: it's being used");
+  }
+  Unlock();
+  RAW_VLOG(10, "MemoryRegionMap Shutdown done");
+  return deleted_arena;
+}
+
+bool MemoryRegionMap::IsRecordingLocked() {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  return client_count_ > 0;
+}
+
+// Invariants (once libpthread_initialized is true):
+//   * While lock_ is not held, recursion_count_ is 0 (and
+//     lock_owner_tid_ is the previous owner, but we don't rely on
+//     that).
+//   * recursion_count_ and lock_owner_tid_ are only written while
+//     both lock_ and owner_lock_ are held. They may be read under
+//     just owner_lock_.
+//   * At entry and exit of Lock() and Unlock(), the current thread
+//     owns lock_ iff pthread_equal(lock_owner_tid_, pthread_self())
+//     && recursion_count_ > 0.
+void MemoryRegionMap::Lock() {
+  {
+    SpinLockHolder l(&owner_lock_);
+    if (recursion_count_ > 0 && current_thread_is(lock_owner_tid_)) {
+      RAW_CHECK(lock_.IsHeld(), "Invariants violated");
+      recursion_count_++;
+      RAW_CHECK(recursion_count_ <= 5,
+                "recursive lock nesting unexpectedly deep");
+      return;
+    }
+  }
+  lock_.Lock();
+  {
+    SpinLockHolder l(&owner_lock_);
+    RAW_CHECK(recursion_count_ == 0,
+              "Last Unlock didn't reset recursion_count_");
+    if (libpthread_initialized)
+      lock_owner_tid_ = pthread_self();
+    recursion_count_ = 1;
+  }
+}
+
+void MemoryRegionMap::Unlock() {
+  SpinLockHolder l(&owner_lock_);
+  RAW_CHECK(recursion_count_ >  0, "unlock when not held");
+  RAW_CHECK(lock_.IsHeld(),
+            "unlock when not held, and recursion_count_ is wrong");
+  RAW_CHECK(current_thread_is(lock_owner_tid_), "unlock by non-holder");
+  recursion_count_--;
+  if (recursion_count_ == 0) {
+    lock_.Unlock();
+  }
+}
+
+bool MemoryRegionMap::LockIsHeld() {
+  SpinLockHolder l(&owner_lock_);
+  return lock_.IsHeld()  &&  current_thread_is(lock_owner_tid_);
+}
+
+const MemoryRegionMap::Region*
+MemoryRegionMap::DoFindRegionLocked(uintptr_t addr) {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  if (regions_ != NULL) {
+    Region sample;
+    sample.SetRegionSetKey(addr);
+    RegionSet::iterator region = regions_->lower_bound(sample);
+    if (region != regions_->end()) {
+      RAW_CHECK(addr <= region->end_addr, "");
+      if (region->start_addr <= addr  &&  addr < region->end_addr) {
+        return &(*region);
+      }
+    }
+  }
+  return NULL;
+}
+
+bool MemoryRegionMap::FindRegion(uintptr_t addr, Region* result) {
+  Lock();
+  const Region* region = DoFindRegionLocked(addr);
+  if (region != NULL) *result = *region;  // create it as an independent copy
+  Unlock();
+  return region != NULL;
+}
+
+bool MemoryRegionMap::FindAndMarkStackRegion(uintptr_t stack_top,
+                                             Region* result) {
+  Lock();
+  const Region* region = DoFindRegionLocked(stack_top);
+  if (region != NULL) {
+    RAW_VLOG(10, "Stack at %p is inside region %p..%p",
+                reinterpret_cast(stack_top),
+                reinterpret_cast(region->start_addr),
+                reinterpret_cast(region->end_addr));
+    const_cast(region)->set_is_stack();  // now we know
+      // cast is safe (set_is_stack does not change the set ordering key)
+    *result = *region;  // create *result as an independent copy
+  }
+  Unlock();
+  return region != NULL;
+}
+
+HeapProfileBucket* MemoryRegionMap::GetBucket(int depth,
+                                              const void* const key[]) {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  // Make hash-value
+  uintptr_t hash = 0;
+  for (int i = 0; i < depth; i++) {
+    hash += reinterpret_cast(key[i]);
+    hash += hash << 10;
+    hash ^= hash >> 6;
+  }
+  hash += hash << 3;
+  hash ^= hash >> 11;
+
+  // Lookup stack trace in table
+  unsigned int hash_index = (static_cast(hash)) % kHashTableSize;
+  for (HeapProfileBucket* bucket = bucket_table_[hash_index];
+       bucket != 0;
+       bucket = bucket->next) {
+    if ((bucket->hash == hash) && (bucket->depth == depth) &&
+        std::equal(key, key + depth, bucket->stack)) {
+      return bucket;
+    }
+  }
+
+  // Create new bucket
+  const size_t key_size = sizeof(key[0]) * depth;
+  HeapProfileBucket* bucket;
+  if (recursive_insert) {  // recursion: save in saved_buckets_
+    const void** key_copy = saved_buckets_keys_[saved_buckets_count_];
+    std::copy(key, key + depth, key_copy);
+    bucket = &saved_buckets_[saved_buckets_count_];
+    memset(bucket, 0, sizeof(*bucket));
+    ++saved_buckets_count_;
+    bucket->stack = key_copy;
+    bucket->next  = NULL;
+  } else {
+    recursive_insert = true;
+    const void** key_copy = static_cast(
+        MyAllocator::Allocate(key_size));
+    recursive_insert = false;
+    std::copy(key, key + depth, key_copy);
+    recursive_insert = true;
+    bucket = static_cast(
+        MyAllocator::Allocate(sizeof(HeapProfileBucket)));
+    recursive_insert = false;
+    memset(bucket, 0, sizeof(*bucket));
+    bucket->stack = key_copy;
+    bucket->next  = bucket_table_[hash_index];
+  }
+  bucket->hash = hash;
+  bucket->depth = depth;
+  bucket_table_[hash_index] = bucket;
+  ++num_buckets_;
+  return bucket;
+}
+
+MemoryRegionMap::RegionIterator MemoryRegionMap::BeginRegionLocked() {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  RAW_CHECK(regions_ != NULL, "");
+  return regions_->begin();
+}
+
+MemoryRegionMap::RegionIterator MemoryRegionMap::EndRegionLocked() {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  RAW_CHECK(regions_ != NULL, "");
+  return regions_->end();
+}
+
+inline void MemoryRegionMap::DoInsertRegionLocked(const Region& region) {
+  RAW_VLOG(12, "Inserting region %p..%p from %p",
+              reinterpret_cast(region.start_addr),
+              reinterpret_cast(region.end_addr),
+              reinterpret_cast(region.caller()));
+  RegionSet::const_iterator i = regions_->lower_bound(region);
+  if (i != regions_->end() && i->start_addr <= region.start_addr) {
+    RAW_DCHECK(region.end_addr <= i->end_addr, "");  // lower_bound ensures this
+    return;  // 'region' is a subset of an already recorded region; do nothing
+    // We can be stricter and allow this only when *i has been created via
+    // an mmap with MAP_NORESERVE flag set.
+  }
+  if (DEBUG_MODE) {
+    RAW_CHECK(i == regions_->end()  ||  !region.Overlaps(*i),
+              "Wow, overlapping memory regions");
+    Region sample;
+    sample.SetRegionSetKey(region.start_addr);
+    i = regions_->lower_bound(sample);
+    RAW_CHECK(i == regions_->end()  ||  !region.Overlaps(*i),
+              "Wow, overlapping memory regions");
+  }
+  region.AssertIsConsistent();  // just making sure
+  // This inserts and allocates permanent storage for region
+  // and its call stack data: it's safe to do it now:
+  regions_->insert(region);
+  RAW_VLOG(12, "Inserted region %p..%p :",
+              reinterpret_cast(region.start_addr),
+              reinterpret_cast(region.end_addr));
+  if (VLOG_IS_ON(12))  LogAllLocked();
+}
+
+// These variables are local to MemoryRegionMap::InsertRegionLocked()
+// and MemoryRegionMap::HandleSavedRegionsLocked()
+// and are file-level to ensure that they are initialized at load time.
+
+// Number of unprocessed region inserts.
+static int saved_regions_count = 0;
+
+// Unprocessed inserts (must be big enough to hold all allocations that can
+// be caused by a InsertRegionLocked call).
+// Region has no constructor, so that c-tor execution does not interfere
+// with the any-time use of the static memory behind saved_regions.
+static MemoryRegionMap::Region saved_regions[20];
+
+inline void MemoryRegionMap::HandleSavedRegionsLocked(
+              void (*insert_func)(const Region& region)) {
+  while (saved_regions_count > 0) {
+    // Making a local-var copy of the region argument to insert_func
+    // including its stack (w/o doing any memory allocations) is important:
+    // in many cases the memory in saved_regions
+    // will get written-to during the (*insert_func)(r) call below.
+    Region r = saved_regions[--saved_regions_count];
+    (*insert_func)(r);
+  }
+}
+
+void MemoryRegionMap::RestoreSavedBucketsLocked() {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  while (saved_buckets_count_ > 0) {
+    HeapProfileBucket bucket = saved_buckets_[--saved_buckets_count_];
+    unsigned int hash_index =
+        static_cast(bucket.hash) % kHashTableSize;
+    bool is_found = false;
+    for (HeapProfileBucket* curr = bucket_table_[hash_index];
+         curr != 0;
+         curr = curr->next) {
+      if ((curr->hash == bucket.hash) && (curr->depth == bucket.depth) &&
+          std::equal(bucket.stack, bucket.stack + bucket.depth, curr->stack)) {
+        curr->allocs += bucket.allocs;
+        curr->alloc_size += bucket.alloc_size;
+        curr->frees += bucket.frees;
+        curr->free_size += bucket.free_size;
+        is_found = true;
+        break;
+      }
+    }
+    if (is_found) continue;
+
+    const size_t key_size = sizeof(bucket.stack[0]) * bucket.depth;
+    const void** key_copy = static_cast(
+        MyAllocator::Allocate(key_size));
+    std::copy(bucket.stack, bucket.stack + bucket.depth, key_copy);
+    HeapProfileBucket* new_bucket = static_cast(
+        MyAllocator::Allocate(sizeof(HeapProfileBucket)));
+    memset(new_bucket, 0, sizeof(*new_bucket));
+    new_bucket->hash = bucket.hash;
+    new_bucket->depth = bucket.depth;
+    new_bucket->stack = key_copy;
+    new_bucket->next = bucket_table_[hash_index];
+    bucket_table_[hash_index] = new_bucket;
+    ++num_buckets_;
+  }
+}
+
+inline void MemoryRegionMap::InitRegionSetLocked() {
+  RAW_VLOG(12, "Initializing region set");
+  regions_ = regions_rep.region_set();
+  recursive_insert = true;
+  new (regions_) RegionSet();
+  HandleSavedRegionsLocked(&DoInsertRegionLocked);
+  recursive_insert = false;
+}
+
+inline void MemoryRegionMap::InsertRegionLocked(const Region& region) {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  // We can be called recursively, because RegionSet constructor
+  // and DoInsertRegionLocked() (called below) can call the allocator.
+  // recursive_insert tells us if that's the case. When this happens,
+  // region insertion information is recorded in saved_regions[],
+  // and taken into account when the recursion unwinds.
+  // Do the insert:
+  if (recursive_insert) {  // recursion: save in saved_regions
+    RAW_VLOG(12, "Saving recursive insert of region %p..%p from %p",
+                reinterpret_cast(region.start_addr),
+                reinterpret_cast(region.end_addr),
+                reinterpret_cast(region.caller()));
+    RAW_CHECK(saved_regions_count < arraysize(saved_regions), "");
+    // Copy 'region' to saved_regions[saved_regions_count]
+    // together with the contents of its call_stack,
+    // then increment saved_regions_count.
+    saved_regions[saved_regions_count++] = region;
+  } else {  // not a recusrive call
+    if (regions_ == NULL) {  // init regions_
+      InitRegionSetLocked();
+    }
+    recursive_insert = true;
+    // Do the actual insertion work to put new regions into regions_:
+    DoInsertRegionLocked(region);
+    HandleSavedRegionsLocked(&DoInsertRegionLocked);
+    recursive_insert = false;
+  }
+}
+
+// We strip out different number of stack frames in debug mode
+// because less inlining happens in that case
+#ifdef NDEBUG
+static const int kStripFrames = 1;
+#else
+static const int kStripFrames = 3;
+#endif
+
+void MemoryRegionMap::RecordRegionAddition(const void* start, size_t size) {
+  // Record start/end info about this memory acquisition call in a new region:
+  Region region;
+  region.Create(start, size);
+  // First get the call stack info into the local varible 'region':
+  int depth = 0;
+  // NOTE: libunwind also does mmap and very much likely while holding
+  // it's own lock(s). So some threads may first take libunwind lock,
+  // and then take region map lock (necessary to record mmap done from
+  // inside libunwind). On the other hand other thread(s) may do
+  // normal mmap. Which would call this method to record it. Which
+  // would then proceed with installing that record to region map
+  // while holding region map lock. That may cause mmap from our own
+  // internal allocators, so attempt to unwind in this case may cause
+  // reverse order of taking libuwind and region map locks. Which is
+  // obvious deadlock.
+  //
+  // Thankfully, we can easily detect if we're holding region map lock
+  // and avoid recording backtrace in this (rare and largely
+  // irrelevant) case. By doing this we "declare" that thread needing
+  // both locks must take region map lock last. In other words we do
+  // not allow taking libuwind lock when we already have region map
+  // lock. Note, this is generally impossible when somebody tries to
+  // mix cpu profiling and heap checking/profiling, because cpu
+  // profiler grabs backtraces at arbitrary places. But at least such
+  // combination is rarer and less relevant.
+  if (max_stack_depth_ > 0 && !LockIsHeld()) {
+    depth = MallocHook::GetCallerStackTrace(const_cast(region.call_stack),
+                                            max_stack_depth_, kStripFrames + 1);
+  }
+  region.set_call_stack_depth(depth);  // record stack info fully
+  RAW_VLOG(10, "New global region %p..%p from %p",
+              reinterpret_cast(region.start_addr),
+              reinterpret_cast(region.end_addr),
+              reinterpret_cast(region.caller()));
+  // Note: none of the above allocates memory.
+  Lock();  // recursively lock
+  map_size_ += size;
+  InsertRegionLocked(region);
+    // This will (eventually) allocate storage for and copy over the stack data
+    // from region.call_stack_data_ that is pointed by region.call_stack().
+  if (bucket_table_ != NULL) {
+    HeapProfileBucket* b = GetBucket(depth, region.call_stack);
+    ++b->allocs;
+    b->alloc_size += size;
+    if (!recursive_insert) {
+      recursive_insert = true;
+      RestoreSavedBucketsLocked();
+      recursive_insert = false;
+    }
+  }
+  Unlock();
+}
+
+void MemoryRegionMap::RecordRegionRemoval(const void* start, size_t size) {
+  Lock();
+  if (recursive_insert) {
+    // First remove the removed region from saved_regions, if it's
+    // there, to prevent overrunning saved_regions in recursive
+    // map/unmap call sequences, and also from later inserting regions
+    // which have already been unmapped.
+    uintptr_t start_addr = reinterpret_cast(start);
+    uintptr_t end_addr = start_addr + size;
+    int put_pos = 0;
+    int old_count = saved_regions_count;
+    for (int i = 0; i < old_count; ++i, ++put_pos) {
+      Region& r = saved_regions[i];
+      if (r.start_addr == start_addr && r.end_addr == end_addr) {
+        // An exact match, so it's safe to remove.
+        RecordRegionRemovalInBucket(r.call_stack_depth, r.call_stack, size);
+        --saved_regions_count;
+        --put_pos;
+        RAW_VLOG(10, ("Insta-Removing saved region %p..%p; "
+                     "now have %d saved regions"),
+                 reinterpret_cast(start_addr),
+                 reinterpret_cast(end_addr),
+                 saved_regions_count);
+      } else {
+        if (put_pos < i) {
+          saved_regions[put_pos] = saved_regions[i];
+        }
+      }
+    }
+  }
+  if (regions_ == NULL) {  // We must have just unset the hooks,
+                           // but this thread was already inside the hook.
+    Unlock();
+    return;
+  }
+  if (!recursive_insert) {
+    HandleSavedRegionsLocked(&InsertRegionLocked);
+  }
+    // first handle adding saved regions if any
+  uintptr_t start_addr = reinterpret_cast(start);
+  uintptr_t end_addr = start_addr + size;
+  // subtract start_addr, end_addr from all the regions
+  RAW_VLOG(10, "Removing global region %p..%p; have %zu regions",
+              reinterpret_cast(start_addr),
+              reinterpret_cast(end_addr),
+              regions_->size());
+  Region sample;
+  sample.SetRegionSetKey(start_addr);
+  // Only iterate over the regions that might overlap start_addr..end_addr:
+  for (RegionSet::iterator region = regions_->lower_bound(sample);
+       region != regions_->end()  &&  region->start_addr < end_addr;
+       /*noop*/) {
+    RAW_VLOG(13, "Looking at region %p..%p",
+                reinterpret_cast(region->start_addr),
+                reinterpret_cast(region->end_addr));
+    if (start_addr <= region->start_addr  &&
+        region->end_addr <= end_addr) {  // full deletion
+      RAW_VLOG(12, "Deleting region %p..%p",
+                  reinterpret_cast(region->start_addr),
+                  reinterpret_cast(region->end_addr));
+      RecordRegionRemovalInBucket(region->call_stack_depth, region->call_stack,
+                                  region->end_addr - region->start_addr);
+      RegionSet::iterator d = region;
+      ++region;
+      regions_->erase(d);
+      continue;
+    } else if (region->start_addr < start_addr  &&
+               end_addr < region->end_addr) {  // cutting-out split
+      RAW_VLOG(12, "Splitting region %p..%p in two",
+                  reinterpret_cast(region->start_addr),
+                  reinterpret_cast(region->end_addr));
+      RecordRegionRemovalInBucket(region->call_stack_depth, region->call_stack,
+                                  end_addr - start_addr);
+      // Make another region for the start portion:
+      // The new region has to be the start portion because we can't
+      // just modify region->end_addr as it's the sorting key.
+      Region r = *region;
+      r.set_end_addr(start_addr);
+      InsertRegionLocked(r);
+      // cut *region from start:
+      const_cast(*region).set_start_addr(end_addr);
+    } else if (end_addr > region->start_addr  &&
+               start_addr <= region->start_addr) {  // cut from start
+      RAW_VLOG(12, "Start-chopping region %p..%p",
+                  reinterpret_cast(region->start_addr),
+                  reinterpret_cast(region->end_addr));
+      RecordRegionRemovalInBucket(region->call_stack_depth, region->call_stack,
+                                  end_addr - region->start_addr);
+      const_cast(*region).set_start_addr(end_addr);
+    } else if (start_addr > region->start_addr  &&
+               start_addr < region->end_addr) {  // cut from end
+      RAW_VLOG(12, "End-chopping region %p..%p",
+                  reinterpret_cast(region->start_addr),
+                  reinterpret_cast(region->end_addr));
+      RecordRegionRemovalInBucket(region->call_stack_depth, region->call_stack,
+                                  region->end_addr - start_addr);
+      // Can't just modify region->end_addr (it's the sorting key):
+      Region r = *region;
+      r.set_end_addr(start_addr);
+      RegionSet::iterator d = region;
+      ++region;
+      // It's safe to erase before inserting since r is independent of *d:
+      // r contains an own copy of the call stack:
+      regions_->erase(d);
+      InsertRegionLocked(r);
+      continue;
+    }
+    ++region;
+  }
+  RAW_VLOG(12, "Removed region %p..%p; have %zu regions",
+              reinterpret_cast(start_addr),
+              reinterpret_cast(end_addr),
+              regions_->size());
+  if (VLOG_IS_ON(12))  LogAllLocked();
+  unmap_size_ += size;
+  Unlock();
+}
+
+void MemoryRegionMap::RecordRegionRemovalInBucket(int depth,
+                                                  const void* const stack[],
+                                                  size_t size) {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  if (bucket_table_ == NULL) return;
+  HeapProfileBucket* b = GetBucket(depth, stack);
+  ++b->frees;
+  b->free_size += size;
+}
+
+void MemoryRegionMap::MmapHook(const void* result,
+                               const void* start, size_t size,
+                               int prot, int flags,
+                               int fd, off_t offset) {
+  // TODO(maxim): replace all 0x%" PRIxPTR " by %p when RAW_VLOG uses a safe
+  // snprintf reimplementation that does not malloc to pretty-print NULL
+  RAW_VLOG(10, "MMap = 0x%" PRIxPTR " of %zu at %" PRIu64 " "
+              "prot %d flags %d fd %d offs %" PRId64,
+              reinterpret_cast(result), size,
+              reinterpret_cast(start), prot, flags, fd,
+              static_cast(offset));
+  if (result != reinterpret_cast(MAP_FAILED)  &&  size != 0) {
+    RecordRegionAddition(result, size);
+  }
+}
+
+void MemoryRegionMap::MunmapHook(const void* ptr, size_t size) {
+  RAW_VLOG(10, "MUnmap of %p %zu", ptr, size);
+  if (size != 0) {
+    RecordRegionRemoval(ptr, size);
+  }
+}
+
+void MemoryRegionMap::MremapHook(const void* result,
+                                 const void* old_addr, size_t old_size,
+                                 size_t new_size, int flags,
+                                 const void* new_addr) {
+  RAW_VLOG(10, "MRemap = 0x%" PRIxPTR " of 0x%" PRIxPTR " %zu "
+              "to %zu flags %d new_addr=0x%" PRIxPTR,
+              (uintptr_t)result, (uintptr_t)old_addr,
+               old_size, new_size, flags,
+               flags & MREMAP_FIXED ? (uintptr_t)new_addr : 0);
+  if (result != reinterpret_cast(-1)) {
+    RecordRegionRemoval(old_addr, old_size);
+    RecordRegionAddition(result, new_size);
+  }
+}
+
+void MemoryRegionMap::SbrkHook(const void* result, ptrdiff_t increment) {
+  RAW_VLOG(10, "Sbrk = 0x%" PRIxPTR " of %zd", (uintptr_t)result, increment);
+  if (result != reinterpret_cast(-1)) {
+    if (increment > 0) {
+      void* new_end = sbrk(0);
+      RecordRegionAddition(result, reinterpret_cast(new_end) -
+                                   reinterpret_cast(result));
+    } else if (increment < 0) {
+      void* new_end = sbrk(0);
+      RecordRegionRemoval(new_end, reinterpret_cast(result) -
+                                   reinterpret_cast(new_end));
+    }
+  }
+}
+
+void MemoryRegionMap::LogAllLocked() {
+  RAW_CHECK(LockIsHeld(), "should be held (by this thread)");
+  RAW_LOG(INFO, "List of regions:");
+  uintptr_t previous = 0;
+  for (RegionSet::const_iterator r = regions_->begin();
+       r != regions_->end(); ++r) {
+    RAW_LOG(INFO, "Memory region 0x%" PRIxPTR "..0x%" PRIxPTR " "
+                  "from 0x%" PRIxPTR " stack=%d",
+                  r->start_addr, r->end_addr, r->caller(), r->is_stack);
+    RAW_CHECK(previous < r->end_addr, "wow, we messed up the set order");
+      // this must be caused by uncontrolled recursive operations on regions_
+    previous = r->end_addr;
+  }
+  RAW_LOG(INFO, "End of regions list");
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/memory_region_map.h b/trunk/3rdparty/gperftools-2-fit/src/memory_region_map.h
new file mode 100644
index 000000000..c21fac3b3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/memory_region_map.h
@@ -0,0 +1,416 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Maxim Lifantsev
+ */
+
+#ifndef BASE_MEMORY_REGION_MAP_H_
+#define BASE_MEMORY_REGION_MAP_H_
+
+#include 
+
+#ifdef HAVE_PTHREAD
+#include 
+#endif
+#include 
+#include 
+#include "base/stl_allocator.h"
+#include "base/spinlock.h"
+#include "base/thread_annotations.h"
+#include "base/low_level_alloc.h"
+#include "heap-profile-stats.h"
+
+// TODO(maxim): add a unittest:
+//  execute a bunch of mmaps and compare memory map what strace logs
+//  execute a bunch of mmap/munmup and compare memory map with
+//  own accounting of what those mmaps generated
+
+// Thread-safe class to collect and query the map of all memory regions
+// in a process that have been created with mmap, munmap, mremap, sbrk.
+// For each memory region, we keep track of (and provide to users)
+// the stack trace that allocated that memory region.
+// The recorded stack trace depth is bounded by
+// a user-supplied max_stack_depth parameter of Init().
+// After initialization with Init()
+// (which can happened even before global object constructor execution)
+// we collect the map by installing and monitoring MallocHook-s
+// to mmap, munmap, mremap, sbrk.
+// At any time one can query this map via provided interface.
+// For more details on the design of MemoryRegionMap
+// see the comment at the top of our .cc file.
+class MemoryRegionMap {
+ private:
+  // Max call stack recording depth supported by Init().  Set it to be
+  // high enough for all our clients.  Note: we do not define storage
+  // for this (doing that requires special handling in windows), so
+  // don't take the address of it!
+  static const int kMaxStackDepth = 32;
+
+  // Size of the hash table of buckets.  A structure of the bucket table is
+  // described in heap-profile-stats.h.
+  static const int kHashTableSize = 179999;
+
+ public:
+  // interface ================================================================
+
+  // Every client of MemoryRegionMap must call Init() before first use,
+  // and Shutdown() after last use.  This allows us to reference count
+  // this (singleton) class properly.  MemoryRegionMap assumes it's the
+  // only client of MallocHooks, so a client can only register other
+  // MallocHooks after calling Init() and must unregister them before
+  // calling Shutdown().
+
+  // Initialize this module to record memory allocation stack traces.
+  // Stack traces that have more than "max_stack_depth" frames
+  // are automatically shrunk to "max_stack_depth" when they are recorded.
+  // Init() can be called more than once w/o harm, largest max_stack_depth
+  // will be the effective one.
+  // When "use_buckets" is true, then counts of mmap and munmap sizes will be
+  // recorded with each stack trace.  If Init() is called more than once, then
+  // counting will be effective after any call contained "use_buckets" of true.
+  // It will install mmap, munmap, mremap, sbrk hooks
+  // and initialize arena_ and our hook and locks, hence one can use
+  // MemoryRegionMap::Lock()/Unlock() to manage the locks.
+  // Uses Lock/Unlock inside.
+  static void Init(int max_stack_depth, bool use_buckets);
+
+  // Try to shutdown this module undoing what Init() did.
+  // Returns true iff could do full shutdown (or it was not attempted).
+  // Full shutdown is attempted when the number of Shutdown() calls equals
+  // the number of Init() calls.
+  static bool Shutdown();
+
+  // Return true if MemoryRegionMap is initialized and recording, i.e. when
+  // then number of Init() calls are more than the number of Shutdown() calls.
+  static bool IsRecordingLocked();
+
+  // Locks to protect our internal data structures.
+  // These also protect use of arena_ if our Init() has been done.
+  // The lock is recursive.
+  static void Lock() EXCLUSIVE_LOCK_FUNCTION(lock_);
+  static void Unlock() UNLOCK_FUNCTION(lock_);
+
+  // Returns true when the lock is held by this thread (for use in RAW_CHECK-s).
+  static bool LockIsHeld();
+
+  // Locker object that acquires the MemoryRegionMap::Lock
+  // for the duration of its lifetime (a C++ scope).
+  class LockHolder {
+   public:
+    LockHolder() { Lock(); }
+    ~LockHolder() { Unlock(); }
+   private:
+    DISALLOW_COPY_AND_ASSIGN(LockHolder);
+  };
+
+  // A memory region that we know about through malloc_hook-s.
+  // This is essentially an interface through which MemoryRegionMap
+  // exports the collected data to its clients.  Thread-compatible.
+  struct Region {
+    uintptr_t start_addr;  // region start address
+    uintptr_t end_addr;  // region end address
+    int call_stack_depth;  // number of caller stack frames that we saved
+    const void* call_stack[kMaxStackDepth];  // caller address stack array
+                                             // filled to call_stack_depth size
+    bool is_stack;  // does this region contain a thread's stack:
+                    // a user of MemoryRegionMap supplies this info
+
+    // Convenience accessor for call_stack[0],
+    // i.e. (the program counter of) the immediate caller
+    // of this region's allocation function,
+    // but it also returns NULL when call_stack_depth is 0,
+    // i.e whe we weren't able to get the call stack.
+    // This usually happens in recursive calls, when the stack-unwinder
+    // calls mmap() which in turn calls the stack-unwinder.
+    uintptr_t caller() const {
+      return reinterpret_cast(call_stack_depth >= 1
+                                         ? call_stack[0] : NULL);
+    }
+
+    // Return true iff this region overlaps region x.
+    bool Overlaps(const Region& x) const {
+      return start_addr < x.end_addr  &&  end_addr > x.start_addr;
+    }
+
+   private:  // helpers for MemoryRegionMap
+    friend class MemoryRegionMap;
+
+    // The ways we create Region-s:
+    void Create(const void* start, size_t size) {
+      start_addr = reinterpret_cast(start);
+      end_addr = start_addr + size;
+      is_stack = false;  // not a stack till marked such
+      call_stack_depth = 0;
+      AssertIsConsistent();
+    }
+    void set_call_stack_depth(int depth) {
+      RAW_DCHECK(call_stack_depth == 0, "");  // only one such set is allowed
+      call_stack_depth = depth;
+      AssertIsConsistent();
+    }
+
+    // The ways we modify Region-s:
+    void set_is_stack() { is_stack = true; }
+    void set_start_addr(uintptr_t addr) {
+      start_addr = addr;
+      AssertIsConsistent();
+    }
+    void set_end_addr(uintptr_t addr) {
+      end_addr = addr;
+      AssertIsConsistent();
+    }
+
+    // Verifies that *this contains consistent data, crashes if not the case.
+    void AssertIsConsistent() const {
+      RAW_DCHECK(start_addr < end_addr, "");
+      RAW_DCHECK(call_stack_depth >= 0  &&
+                 call_stack_depth <= kMaxStackDepth, "");
+    }
+
+    // Post-default construction helper to make a Region suitable
+    // for searching in RegionSet regions_.
+    void SetRegionSetKey(uintptr_t addr) {
+      // make sure *this has no usable data:
+      if (DEBUG_MODE) memset(this, 0xFF, sizeof(*this));
+      end_addr = addr;
+    }
+
+    // Note: call_stack[kMaxStackDepth] as a member lets us make Region
+    // a simple self-contained struct with correctly behaving bit-vise copying.
+    // This simplifies the code of this module but wastes some memory:
+    // in most-often use case of this module (leak checking)
+    // only one call_stack element out of kMaxStackDepth is actually needed.
+    // Making the storage for call_stack variable-sized,
+    // substantially complicates memory management for the Region-s:
+    // as they need to be created and manipulated for some time
+    // w/o any memory allocations, yet are also given out to the users.
+  };
+
+  // Find the region that covers addr and write its data into *result if found,
+  // in which case *result gets filled so that it stays fully functional
+  // even when the underlying region gets removed from MemoryRegionMap.
+  // Returns success. Uses Lock/Unlock inside.
+  static bool FindRegion(uintptr_t addr, Region* result);
+
+  // Find the region that contains stack_top, mark that region as
+  // a stack region, and write its data into *result if found,
+  // in which case *result gets filled so that it stays fully functional
+  // even when the underlying region gets removed from MemoryRegionMap.
+  // Returns success. Uses Lock/Unlock inside.
+  static bool FindAndMarkStackRegion(uintptr_t stack_top, Region* result);
+
+  // Iterate over the buckets which store mmap and munmap counts per stack
+  // trace.  It calls "callback" for each bucket, and passes "arg" to it.
+  template
+  static void IterateBuckets(void (*callback)(const HeapProfileBucket*, Type),
+                             Type arg);
+
+  // Get the bucket whose caller stack trace is "key".  The stack trace is
+  // used to a depth of "depth" at most.  The requested bucket is created if
+  // needed.
+  // The bucket table is described in heap-profile-stats.h.
+  static HeapProfileBucket* GetBucket(int depth, const void* const key[]);
+
+ private:  // our internal types ==============================================
+
+  // Region comparator for sorting with STL
+  struct RegionCmp {
+    bool operator()(const Region& x, const Region& y) const {
+      return x.end_addr < y.end_addr;
+    }
+  };
+
+  // We allocate STL objects in our own arena.
+  struct MyAllocator {
+    static void *Allocate(size_t n) {
+      return LowLevelAlloc::AllocWithArena(n, arena_);
+    }
+    static void Free(const void *p, size_t /* n */) {
+      LowLevelAlloc::Free(const_cast(p));
+    }
+  };
+
+  // Set of the memory regions
+  typedef std::set > RegionSet;
+
+ public:  // more in-depth interface ==========================================
+
+  // STL iterator with values of Region
+  typedef RegionSet::const_iterator RegionIterator;
+
+  // Return the begin/end iterators to all the regions.
+  // These need Lock/Unlock protection around their whole usage (loop).
+  // Even when the same thread causes modifications during such a loop
+  // (which are permitted due to recursive locking)
+  // the loop iterator will still be valid as long as its region
+  // has not been deleted, but EndRegionLocked should be
+  // re-evaluated whenever the set of regions has changed.
+  static RegionIterator BeginRegionLocked();
+  static RegionIterator EndRegionLocked();
+
+  // Return the accumulated sizes of mapped and unmapped regions.
+  static int64 MapSize() { return map_size_; }
+  static int64 UnmapSize() { return unmap_size_; }
+
+  // Effectively private type from our .cc =================================
+  // public to let us declare global objects:
+  union RegionSetRep;
+
+ private:
+  // representation ===========================================================
+
+  // Counter of clients of this module that have called Init().
+  static int client_count_;
+
+  // Maximal number of caller stack frames to save (>= 0).
+  static int max_stack_depth_;
+
+  // Arena used for our allocations in regions_.
+  static LowLevelAlloc::Arena* arena_;
+
+  // Set of the mmap/sbrk/mremap-ed memory regions
+  // To be accessed *only* when Lock() is held.
+  // Hence we protect the non-recursive lock used inside of arena_
+  // with our recursive Lock(). This lets a user prevent deadlocks
+  // when threads are stopped by TCMalloc_ListAllProcessThreads at random spots
+  // simply by acquiring our recursive Lock() before that.
+  static RegionSet* regions_;
+
+  // Lock to protect regions_ and buckets_ variables and the data behind.
+  static SpinLock lock_;
+  // Lock to protect the recursive lock itself.
+  static SpinLock owner_lock_;
+
+  // Recursion count for the recursive lock.
+  static int recursion_count_;
+  // The thread id of the thread that's inside the recursive lock.
+  static pthread_t lock_owner_tid_;
+
+  // Total size of all mapped pages so far
+  static int64 map_size_;
+  // Total size of all unmapped pages so far
+  static int64 unmap_size_;
+
+  // Bucket hash table which is described in heap-profile-stats.h.
+  static HeapProfileBucket** bucket_table_ GUARDED_BY(lock_);
+  static int num_buckets_ GUARDED_BY(lock_);
+
+  // The following members are local to MemoryRegionMap::GetBucket()
+  // and MemoryRegionMap::HandleSavedBucketsLocked()
+  // and are file-level to ensure that they are initialized at load time.
+  //
+  // These are used as temporary storage to break the infinite cycle of mmap
+  // calling our hook which (sometimes) causes mmap.  It must be a static
+  // fixed-size array.  The size 20 is just an expected value for safety.
+  // The details are described in memory_region_map.cc.
+
+  // Number of unprocessed bucket inserts.
+  static int saved_buckets_count_ GUARDED_BY(lock_);
+
+  // Unprocessed inserts (must be big enough to hold all mmaps that can be
+  // caused by a GetBucket call).
+  // Bucket has no constructor, so that c-tor execution does not interfere
+  // with the any-time use of the static memory behind saved_buckets.
+  static HeapProfileBucket saved_buckets_[20] GUARDED_BY(lock_);
+
+  static const void* saved_buckets_keys_[20][kMaxStackDepth] GUARDED_BY(lock_);
+
+  // helpers ==================================================================
+
+  // Helper for FindRegion and FindAndMarkStackRegion:
+  // returns the region covering 'addr' or NULL; assumes our lock_ is held.
+  static const Region* DoFindRegionLocked(uintptr_t addr);
+
+  // Verifying wrapper around regions_->insert(region)
+  // To be called to do InsertRegionLocked's work only!
+  inline static void DoInsertRegionLocked(const Region& region);
+  // Handle regions saved by InsertRegionLocked into a tmp static array
+  // by calling insert_func on them.
+  inline static void HandleSavedRegionsLocked(
+                       void (*insert_func)(const Region& region));
+
+  // Restore buckets saved in a tmp static array by GetBucket to the bucket
+  // table where all buckets eventually should be.
+  static void RestoreSavedBucketsLocked();
+
+  // Initialize RegionSet regions_.
+  inline static void InitRegionSetLocked();
+
+  // Wrapper around DoInsertRegionLocked
+  // that handles the case of recursive allocator calls.
+  inline static void InsertRegionLocked(const Region& region);
+
+  // Record addition of a memory region at address "start" of size "size"
+  // (called from our mmap/mremap/sbrk hooks).
+  static void RecordRegionAddition(const void* start, size_t size);
+  // Record deletion of a memory region at address "start" of size "size"
+  // (called from our munmap/mremap/sbrk hooks).
+  static void RecordRegionRemoval(const void* start, size_t size);
+
+  // Record deletion of a memory region of size "size" in a bucket whose
+  // caller stack trace is "key".  The stack trace is used to a depth of
+  // "depth" at most.
+  static void RecordRegionRemovalInBucket(int depth,
+                                          const void* const key[],
+                                          size_t size);
+
+  // Hooks for MallocHook
+  static void MmapHook(const void* result,
+                       const void* start, size_t size,
+                       int prot, int flags,
+                       int fd, off_t offset);
+  static void MunmapHook(const void* ptr, size_t size);
+  static void MremapHook(const void* result, const void* old_addr,
+                         size_t old_size, size_t new_size, int flags,
+                         const void* new_addr);
+  static void SbrkHook(const void* result, ptrdiff_t increment);
+
+  // Log all memory regions; Useful for debugging only.
+  // Assumes Lock() is held
+  static void LogAllLocked();
+
+  DISALLOW_COPY_AND_ASSIGN(MemoryRegionMap);
+};
+
+template 
+void MemoryRegionMap::IterateBuckets(
+    void (*callback)(const HeapProfileBucket*, Type), Type callback_arg) {
+  for (int index = 0; index < kHashTableSize; index++) {
+    for (HeapProfileBucket* bucket = bucket_table_[index];
+         bucket != NULL;
+         bucket = bucket->next) {
+      callback(bucket, callback_arg);
+    }
+  }
+}
+
+#endif  // BASE_MEMORY_REGION_MAP_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/packed-cache-inl.h b/trunk/3rdparty/gperftools-2-fit/src/packed-cache-inl.h
new file mode 100644
index 000000000..7c216e5ae
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/packed-cache-inl.h
@@ -0,0 +1,216 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Geoff Pike
+//
+// This file provides a minimal cache that can hold a  pair
+// with little if any wasted space.  The types of the key and value
+// must be unsigned integral types or at least have unsigned semantics
+// for >>, casting, and similar operations.
+//
+// Synchronization is not provided.  However, the cache is implemented
+// as an array of cache entries whose type is chosen at compile time.
+// If a[i] is atomic on your hardware for the chosen array type then
+// raciness will not necessarily lead to bugginess.  The cache entries
+// must be large enough to hold a partial key and a value packed
+// together.  The partial keys are bit strings of length
+// kKeybits - kHashbits, and the values are bit strings of length kValuebits.
+//
+// In an effort to use minimal space, every cache entry represents
+// some  pair; the class provides no way to mark a cache
+// entry as empty or uninitialized.  In practice, you may want to have
+// reserved keys or values to get around this limitation.  For example, in
+// tcmalloc's PageID-to-sizeclass cache, a value of 0 is used as
+// "unknown sizeclass."
+//
+// Usage Considerations
+// --------------------
+//
+// kHashbits controls the size of the cache.  The best value for
+// kHashbits will of course depend on the application.  Perhaps try
+// tuning the value of kHashbits by measuring different values on your
+// favorite benchmark.  Also remember not to be a pig; other
+// programs that need resources may suffer if you are.
+//
+// The main uses for this class will be when performance is
+// critical and there's a convenient type to hold the cache's
+// entries.  As described above, the number of bits required
+// for a cache entry is (kKeybits - kHashbits) + kValuebits.  Suppose
+// kKeybits + kValuebits is 43.  Then it probably makes sense to
+// chose kHashbits >= 11 so that cache entries fit in a uint32.
+//
+// On the other hand, suppose kKeybits = kValuebits = 64.  Then
+// using this class may be less worthwhile.  You'll probably
+// be using 128 bits for each entry anyway, so maybe just pick
+// a hash function, H, and use an array indexed by H(key):
+//    void Put(K key, V value) { a_[H(key)] = pair(key, value); }
+//    V GetOrDefault(K key, V default) { const pair &p = a_[H(key)]; ... }
+//    etc.
+//
+// Further Details
+// ---------------
+//
+// For caches used only by one thread, the following is true:
+// 1. For a cache c,
+//      (c.Put(key, value), c.GetOrDefault(key, 0)) == value
+//    and
+//      (c.Put(key, value), <...>, c.GetOrDefault(key, 0)) == value
+//    if the elided code contains no c.Put calls.
+//
+// 2. Has(key) will return false if no  pair with that key
+//    has ever been Put.  However, a newly initialized cache will have
+//    some  pairs already present.  When you create a new
+//    cache, you must specify an "initial value."  The initialization
+//    procedure is equivalent to Clear(initial_value), which is
+//    equivalent to Put(k, initial_value) for all keys k from 0 to
+//    2^kHashbits - 1.
+//
+// 3. If key and key' differ then the only way Put(key, value) may
+//    cause Has(key') to change is that Has(key') may change from true to
+//    false. Furthermore, a Put() call that doesn't change Has(key')
+//    doesn't change GetOrDefault(key', ...) either.
+//
+// Implementation details:
+//
+// This is a direct-mapped cache with 2^kHashbits entries; the hash
+// function simply takes the low bits of the key.  We store whole keys
+// if a whole key plus a whole value fits in an entry.  Otherwise, an
+// entry is the high bits of a key and a value, packed together.
+// E.g., a 20 bit key and a 7 bit value only require a uint16 for each
+// entry if kHashbits >= 11.
+//
+// Alternatives to this scheme will be added as needed.
+
+#ifndef TCMALLOC_PACKED_CACHE_INL_H_
+#define TCMALLOC_PACKED_CACHE_INL_H_
+
+#include "config.h"
+#include                      // for size_t
+#ifdef HAVE_STDINT_H
+#include                      // for uintptr_t
+#endif
+#include "base/basictypes.h"
+#include "common.h"
+#include "internal_logging.h"
+
+// A safe way of doing "(1 << n) - 1" -- without worrying about overflow
+// Note this will all be resolved to a constant expression at compile-time
+#define N_ONES_(IntType, N)                                     \
+  ( (N) == 0 ? 0 : ((static_cast(1) << ((N)-1))-1 +    \
+                    (static_cast(1) << ((N)-1))) )
+
+// The types K and V provide upper bounds on the number of valid keys
+// and values, but we explicitly require the keys to be less than
+// 2^kKeybits and the values to be less than 2^kValuebits.  The size
+// of the table is controlled by kHashbits, and the type of each entry
+// in the cache is uintptr_t (native machine word).  See also the big
+// comment at the top of the file.
+template 
+class PackedCache {
+ public:
+  typedef uintptr_t T;
+  typedef uintptr_t K;
+  typedef uint32 V;
+#ifdef TCMALLOC_SMALL_BUT_SLOW
+  // Decrease the size map cache if running in the small memory mode.
+  static const int kHashbits = 12;
+#else
+  static const int kHashbits = 16;
+#endif
+  static const int kValuebits = 7;
+  // one bit after value bits
+  static const int kInvalidMask = 0x80;
+
+  explicit PackedCache() {
+    COMPILE_ASSERT(kKeybits + kValuebits + 1 <= 8 * sizeof(T), use_whole_keys);
+    COMPILE_ASSERT(kHashbits <= kKeybits, hash_function);
+    COMPILE_ASSERT(kHashbits >= kValuebits + 1, small_values_space);
+    Clear();
+  }
+
+  bool TryGet(K key, V* out) const {
+    // As with other code in this class, we touch array_ as few times
+    // as we can.  Assuming entries are read atomically then certain
+    // races are harmless.
+    ASSERT(key == (key & kKeyMask));
+    T hash = Hash(key);
+    T expected_entry = key;
+    expected_entry &= ~N_ONES_(T, kHashbits);
+    T entry = array_[hash];
+    entry ^= expected_entry;
+    if (PREDICT_FALSE(entry >= (1 << kValuebits))) {
+      return false;
+    }
+    *out = static_cast(entry);
+    return true;
+  }
+
+  void Clear() {
+    // sets 'invalid' bit in every byte, include value byte
+    memset(const_cast(array_), kInvalidMask, sizeof(array_));
+  }
+
+  void Put(K key, V value) {
+    ASSERT(key == (key & kKeyMask));
+    ASSERT(value == (value & kValueMask));
+    array_[Hash(key)] = KeyToUpper(key) | value;
+  }
+
+  void Invalidate(K key) {
+    ASSERT(key == (key & kKeyMask));
+    array_[Hash(key)] = KeyToUpper(key) | kInvalidMask;
+  }
+
+ private:
+  // we just wipe all hash bits out of key. I.e. clear lower
+  // kHashbits. We rely on compiler knowing value of Hash(k).
+  static T KeyToUpper(K k) {
+    return static_cast(k) ^ Hash(k);
+  }
+
+  static T Hash(K key) {
+    return static_cast(key) & N_ONES_(size_t, kHashbits);
+  }
+
+  // For masking a K.
+  static const K kKeyMask = N_ONES_(K, kKeybits);
+
+  // For masking a V or a T.
+  static const V kValueMask = N_ONES_(V, kValuebits);
+
+  // array_ is the cache.  Its elements are volatile because any
+  // thread can write any array element at any time.
+  volatile T array_[1 << kHashbits];
+};
+
+#undef N_ONES_
+
+#endif  // TCMALLOC_PACKED_CACHE_INL_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/page_heap.cc b/trunk/3rdparty/gperftools-2-fit/src/page_heap.cc
new file mode 100644
index 000000000..44ad65447
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/page_heap.cc
@@ -0,0 +1,718 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#include 
+#ifdef HAVE_INTTYPES_H
+#include                    // for PRIuPTR
+#endif
+#include                       // for ENOMEM, errno
+#include       // for MallocRange, etc
+#include "base/basictypes.h"
+#include "base/commandlineflags.h"
+#include "internal_logging.h"  // for ASSERT, TCMalloc_Printer, etc
+#include "page_heap_allocator.h"  // for PageHeapAllocator
+#include "static_vars.h"       // for Static
+#include "system-alloc.h"      // for TCMalloc_SystemAlloc, etc
+
+DEFINE_double(tcmalloc_release_rate,
+              EnvToDouble("TCMALLOC_RELEASE_RATE", 1.0),
+              "Rate at which we release unused memory to the system.  "
+              "Zero means we never release memory back to the system.  "
+              "Increase this flag to return memory faster; decrease it "
+              "to return memory slower.  Reasonable rates are in the "
+              "range [0,10]");
+
+DEFINE_int64(tcmalloc_heap_limit_mb,
+              EnvToInt("TCMALLOC_HEAP_LIMIT_MB", 0),
+              "Limit total size of the process heap to the "
+              "specified number of MiB. "
+              "When we approach the limit the memory is released "
+              "to the system more aggressively (more minor page faults). "
+              "Zero means to allocate as long as system allows.");
+
+namespace tcmalloc {
+
+PageHeap::PageHeap()
+    : pagemap_(MetaDataAlloc),
+      scavenge_counter_(0),
+      // Start scavenging at kMaxPages list
+      release_index_(kMaxPages),
+      aggressive_decommit_(false) {
+  COMPILE_ASSERT(kClassSizesMax <= (1 << PageMapCache::kValuebits), valuebits);
+  for (int i = 0; i < kMaxPages; i++) {
+    DLL_Init(&free_[i].normal);
+    DLL_Init(&free_[i].returned);
+  }
+}
+
+Span* PageHeap::SearchFreeAndLargeLists(Length n) {
+  ASSERT(Check());
+  ASSERT(n > 0);
+
+  // Find first size >= n that has a non-empty list
+  for (Length s = n; s <= kMaxPages; s++) {
+    Span* ll = &free_[s - 1].normal;
+    // If we're lucky, ll is non-empty, meaning it has a suitable span.
+    if (!DLL_IsEmpty(ll)) {
+      ASSERT(ll->next->location == Span::ON_NORMAL_FREELIST);
+      return Carve(ll->next, n);
+    }
+    // Alternatively, maybe there's a usable returned span.
+    ll = &free_[s - 1].returned;
+    if (!DLL_IsEmpty(ll)) {
+      // We did not call EnsureLimit before, to avoid releasing the span
+      // that will be taken immediately back.
+      // Calling EnsureLimit here is not very expensive, as it fails only if
+      // there is no more normal spans (and it fails efficiently)
+      // or SystemRelease does not work (there is probably no returned spans).
+      if (EnsureLimit(n)) {
+        // ll may have became empty due to coalescing
+        if (!DLL_IsEmpty(ll)) {
+          ASSERT(ll->next->location == Span::ON_RETURNED_FREELIST);
+          return Carve(ll->next, n);
+        }
+      }
+    }
+  }
+  // No luck in free lists, our last chance is in a larger class.
+  return AllocLarge(n);  // May be NULL
+}
+
+static const size_t kForcedCoalesceInterval = 128*1024*1024;
+
+Span* PageHeap::New(Length n) {
+  ASSERT(Check());
+  ASSERT(n > 0);
+
+  Span* result = SearchFreeAndLargeLists(n);
+  if (result != NULL)
+    return result;
+
+  if (stats_.free_bytes != 0 && stats_.unmapped_bytes != 0
+      && stats_.free_bytes + stats_.unmapped_bytes >= stats_.system_bytes / 4
+      && (stats_.system_bytes / kForcedCoalesceInterval
+          != (stats_.system_bytes + (n << kPageShift)) / kForcedCoalesceInterval)) {
+    // We're about to grow heap, but there are lots of free pages.
+    // tcmalloc's design decision to keep unmapped and free spans
+    // separately and never coalesce them means that sometimes there
+    // can be free pages span of sufficient size, but it consists of
+    // "segments" of different type so page heap search cannot find
+    // it. In order to prevent growing heap and wasting memory in such
+    // case we're going to unmap all free pages. So that all free
+    // spans are maximally coalesced.
+    //
+    // We're also limiting 'rate' of going into this path to be at
+    // most once per 128 megs of heap growth. Otherwise programs that
+    // grow heap frequently (and that means by small amount) could be
+    // penalized with higher count of minor page faults.
+    //
+    // See also large_heap_fragmentation_unittest.cc and
+    // https://code.google.com/p/gperftools/issues/detail?id=368
+    ReleaseAtLeastNPages(static_cast(0x7fffffff));
+
+    // then try again. If we are forced to grow heap because of large
+    // spans fragmentation and not because of problem described above,
+    // then at the very least we've just unmapped free but
+    // insufficiently big large spans back to OS. So in case of really
+    // unlucky memory fragmentation we'll be consuming virtual address
+    // space, but not real memory
+    result = SearchFreeAndLargeLists(n);
+    if (result != NULL) return result;
+  }
+
+  // Grow the heap and try again.
+  if (!GrowHeap(n)) {
+    ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes);
+    ASSERT(Check());
+    // underlying SysAllocator likely set ENOMEM but we can get here
+    // due to EnsureLimit so we set it here too.
+    //
+    // Setting errno to ENOMEM here allows us to avoid dealing with it
+    // in fast-path.
+    errno = ENOMEM;
+    return NULL;
+  }
+  return SearchFreeAndLargeLists(n);
+}
+
+Span* PageHeap::AllocLarge(Length n) {
+  Span *best = NULL;
+  Span *best_normal = NULL;
+
+  // Create a Span to use as an upper bound.
+  Span bound;
+  bound.start = 0;
+  bound.length = n;
+
+  // First search the NORMAL spans..
+  SpanSet::iterator place = large_normal_.upper_bound(SpanPtrWithLength(&bound));
+  if (place != large_normal_.end()) {
+    best = place->span;
+    best_normal = best;
+    ASSERT(best->location == Span::ON_NORMAL_FREELIST);
+  }
+
+  // Try to find better fit from RETURNED spans.
+  place = large_returned_.upper_bound(SpanPtrWithLength(&bound));
+  if (place != large_returned_.end()) {
+    Span *c = place->span;
+    ASSERT(c->location == Span::ON_RETURNED_FREELIST);
+    if (best_normal == NULL
+        || c->length < best->length
+        || (c->length == best->length && c->start < best->start))
+      best = place->span;
+  }
+
+  if (best == best_normal) {
+    return best == NULL ? NULL : Carve(best, n);
+  }
+
+  // best comes from RETURNED set.
+
+  if (EnsureLimit(n, false)) {
+    return Carve(best, n);
+  }
+
+  if (EnsureLimit(n, true)) {
+    // best could have been destroyed by coalescing.
+    // best_normal is not a best-fit, and it could be destroyed as well.
+    // We retry, the limit is already ensured:
+    return AllocLarge(n);
+  }
+
+  // If best_normal existed, EnsureLimit would succeeded:
+  ASSERT(best_normal == NULL);
+  // We are not allowed to take best from returned list.
+  return NULL;
+}
+
+Span* PageHeap::Split(Span* span, Length n) {
+  ASSERT(0 < n);
+  ASSERT(n < span->length);
+  ASSERT(span->location == Span::IN_USE);
+  ASSERT(span->sizeclass == 0);
+
+  const int extra = span->length - n;
+  Span* leftover = NewSpan(span->start + n, extra);
+  ASSERT(leftover->location == Span::IN_USE);
+  RecordSpan(leftover);
+  pagemap_.set(span->start + n - 1, span); // Update map from pageid to span
+  span->length = n;
+
+  return leftover;
+}
+
+void PageHeap::CommitSpan(Span* span) {
+  ++stats_.commit_count;
+
+  TCMalloc_SystemCommit(reinterpret_cast(span->start << kPageShift),
+                        static_cast(span->length << kPageShift));
+  stats_.committed_bytes += span->length << kPageShift;
+  stats_.total_commit_bytes += (span->length << kPageShift);
+}
+
+bool PageHeap::DecommitSpan(Span* span) {
+  ++stats_.decommit_count;
+
+  bool rv = TCMalloc_SystemRelease(reinterpret_cast(span->start << kPageShift),
+                                   static_cast(span->length << kPageShift));
+  if (rv) {
+    stats_.committed_bytes -= span->length << kPageShift;
+    stats_.total_decommit_bytes += (span->length << kPageShift);
+  }
+
+  return rv;
+}
+
+Span* PageHeap::Carve(Span* span, Length n) {
+  ASSERT(n > 0);
+  ASSERT(span->location != Span::IN_USE);
+  const int old_location = span->location;
+  RemoveFromFreeList(span);
+  span->location = Span::IN_USE;
+
+  const int extra = span->length - n;
+  ASSERT(extra >= 0);
+  if (extra > 0) {
+    Span* leftover = NewSpan(span->start + n, extra);
+    leftover->location = old_location;
+    RecordSpan(leftover);
+
+    // The previous span of |leftover| was just splitted -- no need to
+    // coalesce them. The next span of |leftover| was not previously coalesced
+    // with |span|, i.e. is NULL or has got location other than |old_location|.
+#ifndef NDEBUG
+    const PageID p = leftover->start;
+    const Length len = leftover->length;
+    Span* next = GetDescriptor(p+len);
+    ASSERT (next == NULL ||
+            next->location == Span::IN_USE ||
+            next->location != leftover->location);
+#endif
+
+    PrependToFreeList(leftover);  // Skip coalescing - no candidates possible
+    span->length = n;
+    pagemap_.set(span->start + n - 1, span);
+  }
+  ASSERT(Check());
+  if (old_location == Span::ON_RETURNED_FREELIST) {
+    // We need to recommit this address space.
+    CommitSpan(span);
+  }
+  ASSERT(span->location == Span::IN_USE);
+  ASSERT(span->length == n);
+  ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes);
+  return span;
+}
+
+void PageHeap::Delete(Span* span) {
+  ASSERT(Check());
+  ASSERT(span->location == Span::IN_USE);
+  ASSERT(span->length > 0);
+  ASSERT(GetDescriptor(span->start) == span);
+  ASSERT(GetDescriptor(span->start + span->length - 1) == span);
+  const Length n = span->length;
+  span->sizeclass = 0;
+  span->sample = 0;
+  span->location = Span::ON_NORMAL_FREELIST;
+  MergeIntoFreeList(span);  // Coalesces if possible
+  IncrementalScavenge(n);
+  ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes);
+  ASSERT(Check());
+}
+
+// Given span we're about to free and other span (still on free list),
+// checks if 'other' span is mergable with 'span'. If it is, removes
+// other span from free list, performs aggressive decommit if
+// necessary and returns 'other' span. Otherwise 'other' span cannot
+// be merged and is left untouched. In that case NULL is returned.
+Span* PageHeap::CheckAndHandlePreMerge(Span* span, Span* other) {
+  if (other == NULL) {
+    return other;
+  }
+  // if we're in aggressive decommit mode and span is decommitted,
+  // then we try to decommit adjacent span.
+  if (aggressive_decommit_ && other->location == Span::ON_NORMAL_FREELIST
+      && span->location == Span::ON_RETURNED_FREELIST) {
+    bool worked = DecommitSpan(other);
+    if (!worked) {
+      return NULL;
+    }
+  } else if (other->location != span->location) {
+    return NULL;
+  }
+
+  RemoveFromFreeList(other);
+  return other;
+}
+
+void PageHeap::MergeIntoFreeList(Span* span) {
+  ASSERT(span->location != Span::IN_USE);
+
+  // Coalesce -- we guarantee that "p" != 0, so no bounds checking
+  // necessary.  We do not bother resetting the stale pagemap
+  // entries for the pieces we are merging together because we only
+  // care about the pagemap entries for the boundaries.
+  //
+  // Note: depending on aggressive_decommit_ mode we allow only
+  // similar spans to be coalesced.
+  //
+  // The following applies if aggressive_decommit_ is enabled:
+  //
+  // TODO(jar): "Always decommit" causes some extra calls to commit when we are
+  // called in GrowHeap() during an allocation :-/.  We need to eval the cost of
+  // that oscillation, and possibly do something to reduce it.
+
+  // TODO(jar): We need a better strategy for deciding to commit, or decommit,
+  // based on memory usage and free heap sizes.
+
+  const PageID p = span->start;
+  const Length n = span->length;
+
+  if (aggressive_decommit_ && span->location == Span::ON_NORMAL_FREELIST) {
+    if (DecommitSpan(span)) {
+      span->location = Span::ON_RETURNED_FREELIST;
+    }
+  }
+
+  Span* prev = CheckAndHandlePreMerge(span, GetDescriptor(p-1));
+  if (prev != NULL) {
+    // Merge preceding span into this span
+    ASSERT(prev->start + prev->length == p);
+    const Length len = prev->length;
+    DeleteSpan(prev);
+    span->start -= len;
+    span->length += len;
+    pagemap_.set(span->start, span);
+  }
+  Span* next = CheckAndHandlePreMerge(span, GetDescriptor(p+n));
+  if (next != NULL) {
+    // Merge next span into this span
+    ASSERT(next->start == p+n);
+    const Length len = next->length;
+    DeleteSpan(next);
+    span->length += len;
+    pagemap_.set(span->start + span->length - 1, span);
+  }
+
+  PrependToFreeList(span);
+}
+
+void PageHeap::PrependToFreeList(Span* span) {
+  ASSERT(span->location != Span::IN_USE);
+  if (span->location == Span::ON_NORMAL_FREELIST)
+    stats_.free_bytes += (span->length << kPageShift);
+  else
+    stats_.unmapped_bytes += (span->length << kPageShift);
+
+  if (span->length > kMaxPages) {
+    SpanSet *set = &large_normal_;
+    if (span->location == Span::ON_RETURNED_FREELIST)
+      set = &large_returned_;
+    std::pair p =
+        set->insert(SpanPtrWithLength(span));
+    ASSERT(p.second); // We never have duplicates since span->start is unique.
+    span->SetSpanSetIterator(p.first);
+    return;
+  }
+
+  SpanList* list = &free_[span->length - 1];
+  if (span->location == Span::ON_NORMAL_FREELIST) {
+    DLL_Prepend(&list->normal, span);
+  } else {
+    DLL_Prepend(&list->returned, span);
+  }
+}
+
+void PageHeap::RemoveFromFreeList(Span* span) {
+  ASSERT(span->location != Span::IN_USE);
+  if (span->location == Span::ON_NORMAL_FREELIST) {
+    stats_.free_bytes -= (span->length << kPageShift);
+  } else {
+    stats_.unmapped_bytes -= (span->length << kPageShift);
+  }
+  if (span->length > kMaxPages) {
+    SpanSet *set = &large_normal_;
+    if (span->location == Span::ON_RETURNED_FREELIST)
+      set = &large_returned_;
+    SpanSet::iterator iter = span->ExtractSpanSetIterator();
+    ASSERT(iter->span == span);
+    ASSERT(set->find(SpanPtrWithLength(span)) == iter);
+    set->erase(iter);
+  } else {
+    DLL_Remove(span);
+  }
+}
+
+void PageHeap::IncrementalScavenge(Length n) {
+  // Fast path; not yet time to release memory
+  scavenge_counter_ -= n;
+  if (scavenge_counter_ >= 0) return;  // Not yet time to scavenge
+
+  const double rate = FLAGS_tcmalloc_release_rate;
+  if (rate <= 1e-6) {
+    // Tiny release rate means that releasing is disabled.
+    scavenge_counter_ = kDefaultReleaseDelay;
+    return;
+  }
+
+  ++stats_.scavenge_count;
+
+  Length released_pages = ReleaseAtLeastNPages(1);
+
+  if (released_pages == 0) {
+    // Nothing to scavenge, delay for a while.
+    scavenge_counter_ = kDefaultReleaseDelay;
+  } else {
+    // Compute how long to wait until we return memory.
+    // FLAGS_tcmalloc_release_rate==1 means wait for 1000 pages
+    // after releasing one page.
+    const double mult = 1000.0 / rate;
+    double wait = mult * static_cast(released_pages);
+    if (wait > kMaxReleaseDelay) {
+      // Avoid overflow and bound to reasonable range.
+      wait = kMaxReleaseDelay;
+    }
+    scavenge_counter_ = static_cast(wait);
+  }
+}
+
+Length PageHeap::ReleaseSpan(Span* s) {
+  ASSERT(s->location == Span::ON_NORMAL_FREELIST);
+
+  if (DecommitSpan(s)) {
+    RemoveFromFreeList(s);
+    const Length n = s->length;
+    s->location = Span::ON_RETURNED_FREELIST;
+    MergeIntoFreeList(s);  // Coalesces if possible.
+    return n;
+  }
+
+  return 0;
+}
+
+Length PageHeap::ReleaseAtLeastNPages(Length num_pages) {
+  Length released_pages = 0;
+
+  // Round robin through the lists of free spans, releasing a
+  // span from each list.  Stop after releasing at least num_pages
+  // or when there is nothing more to release.
+  while (released_pages < num_pages && stats_.free_bytes > 0) {
+    for (int i = 0; i < kMaxPages+1 && released_pages < num_pages;
+         i++, release_index_++) {
+      Span *s;
+      if (release_index_ > kMaxPages) release_index_ = 0;
+
+      if (release_index_ == kMaxPages) {
+        if (large_normal_.empty()) {
+          continue;
+        }
+        s = (large_normal_.begin())->span;
+      } else {
+        SpanList* slist = &free_[release_index_];
+        if (DLL_IsEmpty(&slist->normal)) {
+          continue;
+        }
+        s = slist->normal.prev;
+      }
+      // TODO(todd) if the remaining number of pages to release
+      // is significantly smaller than s->length, and s is on the
+      // large freelist, should we carve s instead of releasing?
+      // the whole thing?
+      Length released_len = ReleaseSpan(s);
+      // Some systems do not support release
+      if (released_len == 0) return released_pages;
+      released_pages += released_len;
+    }
+  }
+  return released_pages;
+}
+
+bool PageHeap::EnsureLimit(Length n, bool withRelease)
+{
+  Length limit = (FLAGS_tcmalloc_heap_limit_mb*1024*1024) >> kPageShift;
+  if (limit == 0) return true; //there is no limit
+
+  // We do not use stats_.system_bytes because it does not take
+  // MetaDataAllocs into account.
+  Length takenPages = TCMalloc_SystemTaken >> kPageShift;
+  //XXX takenPages may be slightly bigger than limit for two reasons:
+  //* MetaDataAllocs ignore the limit (it is not easy to handle
+  //  out of memory there)
+  //* sys_alloc may round allocation up to huge page size,
+  //  although smaller limit was ensured
+
+  ASSERT(takenPages >= stats_.unmapped_bytes >> kPageShift);
+  takenPages -= stats_.unmapped_bytes >> kPageShift;
+
+  if (takenPages + n > limit && withRelease) {
+    takenPages -= ReleaseAtLeastNPages(takenPages + n - limit);
+  }
+
+  return takenPages + n <= limit;
+}
+
+void PageHeap::RegisterSizeClass(Span* span, uint32 sc) {
+  // Associate span object with all interior pages as well
+  ASSERT(span->location == Span::IN_USE);
+  ASSERT(GetDescriptor(span->start) == span);
+  ASSERT(GetDescriptor(span->start+span->length-1) == span);
+  span->sizeclass = sc;
+  for (Length i = 1; i < span->length-1; i++) {
+    pagemap_.set(span->start+i, span);
+  }
+}
+
+void PageHeap::GetSmallSpanStats(SmallSpanStats* result) {
+  for (int i = 0; i < kMaxPages; i++) {
+    result->normal_length[i] = DLL_Length(&free_[i].normal);
+    result->returned_length[i] = DLL_Length(&free_[i].returned);
+  }
+}
+
+void PageHeap::GetLargeSpanStats(LargeSpanStats* result) {
+  result->spans = 0;
+  result->normal_pages = 0;
+  result->returned_pages = 0;
+  for (SpanSet::iterator it = large_normal_.begin(); it != large_normal_.end(); ++it) {
+    result->normal_pages += it->length;
+    result->spans++;
+  }
+  for (SpanSet::iterator it = large_returned_.begin(); it != large_returned_.end(); ++it) {
+    result->returned_pages += it->length;
+    result->spans++;
+  }
+}
+
+bool PageHeap::GetNextRange(PageID start, base::MallocRange* r) {
+  Span* span = reinterpret_cast(pagemap_.Next(start));
+  if (span == NULL) {
+    return false;
+  }
+  r->address = span->start << kPageShift;
+  r->length = span->length << kPageShift;
+  r->fraction = 0;
+  switch (span->location) {
+    case Span::IN_USE:
+      r->type = base::MallocRange::INUSE;
+      r->fraction = 1;
+      if (span->sizeclass > 0) {
+        // Only some of the objects in this span may be in use.
+        const size_t osize = Static::sizemap()->class_to_size(span->sizeclass);
+        r->fraction = (1.0 * osize * span->refcount) / r->length;
+      }
+      break;
+    case Span::ON_NORMAL_FREELIST:
+      r->type = base::MallocRange::FREE;
+      break;
+    case Span::ON_RETURNED_FREELIST:
+      r->type = base::MallocRange::UNMAPPED;
+      break;
+    default:
+      r->type = base::MallocRange::UNKNOWN;
+      break;
+  }
+  return true;
+}
+
+static void RecordGrowth(size_t growth) {
+  StackTrace* t = Static::stacktrace_allocator()->New();
+  t->depth = GetStackTrace(t->stack, kMaxStackDepth-1, 3);
+  t->size = growth;
+  t->stack[kMaxStackDepth-1] = reinterpret_cast(Static::growth_stacks());
+  Static::set_growth_stacks(t);
+}
+
+bool PageHeap::GrowHeap(Length n) {
+  ASSERT(kMaxPages >= kMinSystemAlloc);
+  if (n > kMaxValidPages) return false;
+  Length ask = (n>kMinSystemAlloc) ? n : static_cast(kMinSystemAlloc);
+  size_t actual_size;
+  void* ptr = NULL;
+  if (EnsureLimit(ask)) {
+      ptr = TCMalloc_SystemAlloc(ask << kPageShift, &actual_size, kPageSize);
+  }
+  if (ptr == NULL) {
+    if (n < ask) {
+      // Try growing just "n" pages
+      ask = n;
+      if (EnsureLimit(ask)) {
+        ptr = TCMalloc_SystemAlloc(ask << kPageShift, &actual_size, kPageSize);
+      }
+    }
+    if (ptr == NULL) return false;
+  }
+  ask = actual_size >> kPageShift;
+  RecordGrowth(ask << kPageShift);
+
+  ++stats_.reserve_count;
+  ++stats_.commit_count;
+
+  uint64_t old_system_bytes = stats_.system_bytes;
+  stats_.system_bytes += (ask << kPageShift);
+  stats_.committed_bytes += (ask << kPageShift);
+
+  stats_.total_commit_bytes += (ask << kPageShift);
+  stats_.total_reserve_bytes += (ask << kPageShift);
+
+  const PageID p = reinterpret_cast(ptr) >> kPageShift;
+  ASSERT(p > 0);
+
+  // If we have already a lot of pages allocated, just pre allocate a bunch of
+  // memory for the page map. This prevents fragmentation by pagemap metadata
+  // when a program keeps allocating and freeing large blocks.
+
+  if (old_system_bytes < kPageMapBigAllocationThreshold
+      && stats_.system_bytes >= kPageMapBigAllocationThreshold) {
+    pagemap_.PreallocateMoreMemory();
+  }
+
+  // Make sure pagemap_ has entries for all of the new pages.
+  // Plus ensure one before and one after so coalescing code
+  // does not need bounds-checking.
+  if (pagemap_.Ensure(p-1, ask+2)) {
+    // Pretend the new area is allocated and then Delete() it to cause
+    // any necessary coalescing to occur.
+    Span* span = NewSpan(p, ask);
+    RecordSpan(span);
+    Delete(span);
+    ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes);
+    ASSERT(Check());
+    return true;
+  } else {
+    // We could not allocate memory within "pagemap_"
+    // TODO: Once we can return memory to the system, return the new span
+    return false;
+  }
+}
+
+bool PageHeap::Check() {
+  return true;
+}
+
+bool PageHeap::CheckExpensive() {
+  bool result = Check();
+  CheckSet(&large_normal_, kMaxPages + 1, Span::ON_NORMAL_FREELIST);
+  CheckSet(&large_returned_, kMaxPages + 1, Span::ON_RETURNED_FREELIST);
+  for (int s = 1; s <= kMaxPages; s++) {
+    CheckList(&free_[s - 1].normal, s, s, Span::ON_NORMAL_FREELIST);
+    CheckList(&free_[s - 1].returned, s, s, Span::ON_RETURNED_FREELIST);
+  }
+  return result;
+}
+
+bool PageHeap::CheckList(Span* list, Length min_pages, Length max_pages,
+                         int freelist) {
+  for (Span* s = list->next; s != list; s = s->next) {
+    CHECK_CONDITION(s->location == freelist);  // NORMAL or RETURNED
+    CHECK_CONDITION(s->length >= min_pages);
+    CHECK_CONDITION(s->length <= max_pages);
+    CHECK_CONDITION(GetDescriptor(s->start) == s);
+    CHECK_CONDITION(GetDescriptor(s->start+s->length-1) == s);
+  }
+  return true;
+}
+
+bool PageHeap::CheckSet(SpanSet* spanset, Length min_pages,int freelist) {
+  for (SpanSet::iterator it = spanset->begin(); it != spanset->end(); ++it) {
+    Span* s = it->span;
+    CHECK_CONDITION(s->length == it->length);
+    CHECK_CONDITION(s->location == freelist);  // NORMAL or RETURNED
+    CHECK_CONDITION(s->length >= min_pages);
+    CHECK_CONDITION(GetDescriptor(s->start) == s);
+    CHECK_CONDITION(GetDescriptor(s->start+s->length-1) == s);
+  }
+  return true;
+}
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/page_heap.h b/trunk/3rdparty/gperftools-2-fit/src/page_heap.h
new file mode 100644
index 000000000..bf50394fa
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/page_heap.h
@@ -0,0 +1,358 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#ifndef TCMALLOC_PAGE_HEAP_H_
+#define TCMALLOC_PAGE_HEAP_H_
+
+#include 
+#include                      // for size_t
+#ifdef HAVE_STDINT_H
+#include                      // for uint64_t, int64_t, uint16_t
+#endif
+#include 
+#include "base/basictypes.h"
+#include "common.h"
+#include "packed-cache-inl.h"
+#include "pagemap.h"
+#include "span.h"
+
+// We need to dllexport PageHeap just for the unittest.  MSVC complains
+// that we don't dllexport the PageHeap members, but we don't need to
+// test those, so I just suppress this warning.
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4251)
+#endif
+
+// This #ifdef should almost never be set.  Set NO_TCMALLOC_SAMPLES if
+// you're porting to a system where you really can't get a stacktrace.
+// Because we control the definition of GetStackTrace, all clients of
+// GetStackTrace should #include us rather than stacktrace.h.
+#ifdef NO_TCMALLOC_SAMPLES
+  // We use #define so code compiles even if you #include stacktrace.h somehow.
+# define GetStackTrace(stack, depth, skip)  (0)
+#else
+# include 
+#endif
+
+namespace base {
+struct MallocRange;
+}
+
+namespace tcmalloc {
+
+// -------------------------------------------------------------------------
+// Map from page-id to per-page data
+// -------------------------------------------------------------------------
+
+// We use PageMap2<> for 32-bit and PageMap3<> for 64-bit machines.
+// We also use a simple one-level cache for hot PageID-to-sizeclass mappings,
+// because sometimes the sizeclass is all the information we need.
+
+// Selector class -- general selector uses 3-level map
+template  class MapSelector {
+ public:
+  typedef TCMalloc_PageMap3 Type;
+};
+
+#ifndef TCMALLOC_SMALL_BUT_SLOW
+// x86-64 and arm64 are using 48 bits of address space. So we can use
+// just two level map, but since initial ram consumption of this mode
+// is a bit on the higher side, we opt-out of it in
+// TCMALLOC_SMALL_BUT_SLOW mode.
+template <> class MapSelector<48> {
+ public:
+  typedef TCMalloc_PageMap2<48-kPageShift> Type;
+};
+
+#endif // TCMALLOC_SMALL_BUT_SLOW
+
+// A two-level map for 32-bit machines
+template <> class MapSelector<32> {
+ public:
+  typedef TCMalloc_PageMap2<32-kPageShift> Type;
+};
+
+// -------------------------------------------------------------------------
+// Page-level allocator
+//  * Eager coalescing
+//
+// Heap for page-level allocation.  We allow allocating and freeing a
+// contiguous runs of pages (called a "span").
+// -------------------------------------------------------------------------
+
+class PERFTOOLS_DLL_DECL PageHeap {
+ public:
+  PageHeap();
+
+  // Allocate a run of "n" pages.  Returns zero if out of memory.
+  // Caller should not pass "n == 0" -- instead, n should have
+  // been rounded up already.
+  Span* New(Length n);
+
+  // Delete the span "[p, p+n-1]".
+  // REQUIRES: span was returned by earlier call to New() and
+  //           has not yet been deleted.
+  void Delete(Span* span);
+
+  // Mark an allocated span as being used for small objects of the
+  // specified size-class.
+  // REQUIRES: span was returned by an earlier call to New()
+  //           and has not yet been deleted.
+  void RegisterSizeClass(Span* span, uint32 sc);
+
+  // Split an allocated span into two spans: one of length "n" pages
+  // followed by another span of length "span->length - n" pages.
+  // Modifies "*span" to point to the first span of length "n" pages.
+  // Returns a pointer to the second span.
+  //
+  // REQUIRES: "0 < n < span->length"
+  // REQUIRES: span->location == IN_USE
+  // REQUIRES: span->sizeclass == 0
+  Span* Split(Span* span, Length n);
+
+  // Return the descriptor for the specified page.  Returns NULL if
+  // this PageID was not allocated previously.
+  inline ATTRIBUTE_ALWAYS_INLINE
+  Span* GetDescriptor(PageID p) const {
+    return reinterpret_cast(pagemap_.get(p));
+  }
+
+  // If this page heap is managing a range with starting page # >= start,
+  // store info about the range in *r and return true.  Else return false.
+  bool GetNextRange(PageID start, base::MallocRange* r);
+
+  // Page heap statistics
+  struct Stats {
+    Stats() : system_bytes(0), free_bytes(0), unmapped_bytes(0), committed_bytes(0),
+        scavenge_count(0), commit_count(0), total_commit_bytes(0),
+        decommit_count(0), total_decommit_bytes(0),
+        reserve_count(0), total_reserve_bytes(0) {}
+    uint64_t system_bytes;    // Total bytes allocated from system
+    uint64_t free_bytes;      // Total bytes on normal freelists
+    uint64_t unmapped_bytes;  // Total bytes on returned freelists
+    uint64_t committed_bytes;  // Bytes committed, always <= system_bytes_.
+
+    uint64_t scavenge_count;   // Number of times scavagened flush pages
+
+    uint64_t commit_count;          // Number of virtual memory commits
+    uint64_t total_commit_bytes;    // Bytes committed in lifetime of process
+    uint64_t decommit_count;        // Number of virtual memory decommits
+    uint64_t total_decommit_bytes;  // Bytes decommitted in lifetime of process
+
+    uint64_t reserve_count;         // Number of virtual memory reserves
+    uint64_t total_reserve_bytes;   // Bytes reserved in lifetime of process
+  };
+  inline Stats stats() const { return stats_; }
+
+  struct SmallSpanStats {
+    // For each free list of small spans, the length (in spans) of the
+    // normal and returned free lists for that size.
+    //
+    // NOTE: index 'i' accounts the number of spans of length 'i + 1'.
+    int64 normal_length[kMaxPages];
+    int64 returned_length[kMaxPages];
+  };
+  void GetSmallSpanStats(SmallSpanStats* result);
+
+  // Stats for free large spans (i.e., spans with more than kMaxPages pages).
+  struct LargeSpanStats {
+    int64 spans;           // Number of such spans
+    int64 normal_pages;    // Combined page length of normal large spans
+    int64 returned_pages;  // Combined page length of unmapped spans
+  };
+  void GetLargeSpanStats(LargeSpanStats* result);
+
+  bool Check();
+  // Like Check() but does some more comprehensive checking.
+  bool CheckExpensive();
+  bool CheckList(Span* list, Length min_pages, Length max_pages,
+                 int freelist);  // ON_NORMAL_FREELIST or ON_RETURNED_FREELIST
+  bool CheckSet(SpanSet *s, Length min_pages, int freelist);
+
+  // Try to release at least num_pages for reuse by the OS.  Returns
+  // the actual number of pages released, which may be less than
+  // num_pages if there weren't enough pages to release. The result
+  // may also be larger than num_pages since page_heap might decide to
+  // release one large range instead of fragmenting it into two
+  // smaller released and unreleased ranges.
+  Length ReleaseAtLeastNPages(Length num_pages);
+
+  // Reads and writes to pagemap_cache_ do not require locking.
+  bool TryGetSizeClass(PageID p, uint32* out) const {
+    return pagemap_cache_.TryGet(p, out);
+  }
+  void SetCachedSizeClass(PageID p, uint32 cl) {
+    ASSERT(cl != 0);
+    pagemap_cache_.Put(p, cl);
+  }
+  void InvalidateCachedSizeClass(PageID p) { pagemap_cache_.Invalidate(p); }
+  uint32 GetSizeClassOrZero(PageID p) const {
+    uint32 cached_value;
+    if (!TryGetSizeClass(p, &cached_value)) {
+      cached_value = 0;
+    }
+    return cached_value;
+  }
+
+  bool GetAggressiveDecommit(void) {return aggressive_decommit_;}
+  void SetAggressiveDecommit(bool aggressive_decommit) {
+    aggressive_decommit_ = aggressive_decommit;
+  }
+
+ private:
+  // Allocates a big block of memory for the pagemap once we reach more than
+  // 128MB
+  static const size_t kPageMapBigAllocationThreshold = 128 << 20;
+
+  // Minimum number of pages to fetch from system at a time.  Must be
+  // significantly bigger than kBlockSize to amortize system-call
+  // overhead, and also to reduce external fragementation.  Also, we
+  // should keep this value big because various incarnations of Linux
+  // have small limits on the number of mmap() regions per
+  // address-space.
+  // REQUIRED: kMinSystemAlloc <= kMaxPages;
+  static const int kMinSystemAlloc = kMaxPages;
+
+  // Never delay scavenging for more than the following number of
+  // deallocated pages.  With 4K pages, this comes to 4GB of
+  // deallocation.
+  static const int kMaxReleaseDelay = 1 << 20;
+
+  // If there is nothing to release, wait for so many pages before
+  // scavenging again.  With 4K pages, this comes to 1GB of memory.
+  static const int kDefaultReleaseDelay = 1 << 18;
+
+  // Pick the appropriate map and cache types based on pointer size
+  typedef MapSelector::Type PageMap;
+  typedef PackedCache PageMapCache;
+  mutable PageMapCache pagemap_cache_;
+  PageMap pagemap_;
+
+  // We segregate spans of a given size into two circular linked
+  // lists: one for normal spans, and one for spans whose memory
+  // has been returned to the system.
+  struct SpanList {
+    Span        normal;
+    Span        returned;
+  };
+
+  // Sets of spans with length > kMaxPages.
+  //
+  // Rather than using a linked list, we use sets here for efficient
+  // best-fit search.
+  SpanSet large_normal_;
+  SpanSet large_returned_;
+
+  // Array mapping from span length to a doubly linked list of free spans
+  //
+  // NOTE: index 'i' stores spans of length 'i + 1'.
+  SpanList free_[kMaxPages];
+
+  // Statistics on system, free, and unmapped bytes
+  Stats stats_;
+
+  Span* SearchFreeAndLargeLists(Length n);
+
+  bool GrowHeap(Length n);
+
+  // REQUIRES: span->length >= n
+  // REQUIRES: span->location != IN_USE
+  // Remove span from its free list, and move any leftover part of
+  // span into appropriate free lists.  Also update "span" to have
+  // length exactly "n" and mark it as non-free so it can be returned
+  // to the client.  After all that, decrease free_pages_ by n and
+  // return span.
+  Span* Carve(Span* span, Length n);
+
+  void RecordSpan(Span* span) {
+    pagemap_.set(span->start, span);
+    if (span->length > 1) {
+      pagemap_.set(span->start + span->length - 1, span);
+    }
+  }
+
+  // Allocate a large span of length == n.  If successful, returns a
+  // span of exactly the specified length.  Else, returns NULL.
+  Span* AllocLarge(Length n);
+
+  // Coalesce span with neighboring spans if possible, prepend to
+  // appropriate free list, and adjust stats.
+  void MergeIntoFreeList(Span* span);
+
+  // Commit the span.
+  void CommitSpan(Span* span);
+
+  // Decommit the span.
+  bool DecommitSpan(Span* span);
+
+  // Prepends span to appropriate free list, and adjusts stats.
+  void PrependToFreeList(Span* span);
+
+  // Removes span from its free list, and adjust stats.
+  void RemoveFromFreeList(Span* span);
+
+  // Incrementally release some memory to the system.
+  // IncrementalScavenge(n) is called whenever n pages are freed.
+  void IncrementalScavenge(Length n);
+
+  // Attempts to decommit 's' and move it to the returned freelist.
+  //
+  // Returns the length of the Span or zero if release failed.
+  //
+  // REQUIRES: 's' must be on the NORMAL freelist.
+  Length ReleaseSpan(Span *s);
+
+  // Checks if we are allowed to take more memory from the system.
+  // If limit is reached and allowRelease is true, tries to release
+  // some unused spans.
+  bool EnsureLimit(Length n, bool allowRelease = true);
+
+  Span* CheckAndHandlePreMerge(Span *span, Span *other);
+
+  // Number of pages to deallocate before doing more scavenging
+  int64_t scavenge_counter_;
+
+  // Index of last free list where we released memory to the OS.
+  int release_index_;
+
+  bool aggressive_decommit_;
+};
+
+}  // namespace tcmalloc
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+#endif  // TCMALLOC_PAGE_HEAP_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/page_heap_allocator.h b/trunk/3rdparty/gperftools-2-fit/src/page_heap_allocator.h
new file mode 100644
index 000000000..3fecabdeb
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/page_heap_allocator.h
@@ -0,0 +1,179 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#ifndef TCMALLOC_PAGE_HEAP_ALLOCATOR_H_
+#define TCMALLOC_PAGE_HEAP_ALLOCATOR_H_
+
+#include                      // for NULL, size_t
+
+#include "common.h"            // for MetaDataAlloc
+#include "internal_logging.h"  // for ASSERT
+
+namespace tcmalloc {
+
+// Simple allocator for objects of a specified type.  External locking
+// is required before accessing one of these objects.
+template 
+class PageHeapAllocator {
+ public:
+  // We use an explicit Init function because these variables are statically
+  // allocated and their constructors might not have run by the time some
+  // other static variable tries to allocate memory.
+  void Init() {
+    ASSERT(sizeof(T) <= kAllocIncrement);
+    inuse_ = 0;
+    free_area_ = NULL;
+    free_avail_ = 0;
+    free_list_ = NULL;
+    // Reserve some space at the beginning to avoid fragmentation.
+    Delete(New());
+  }
+
+  T* New() {
+    // Consult free list
+    void* result;
+    if (free_list_ != NULL) {
+      result = free_list_;
+      free_list_ = *(reinterpret_cast(result));
+    } else {
+      if (free_avail_ < sizeof(T)) {
+        // Need more room. We assume that MetaDataAlloc returns
+        // suitably aligned memory.
+        free_area_ = reinterpret_cast(MetaDataAlloc(kAllocIncrement));
+        if (free_area_ == NULL) {
+          Log(kCrash, __FILE__, __LINE__,
+              "FATAL ERROR: Out of memory trying to allocate internal "
+              "tcmalloc data (bytes, object-size)",
+              kAllocIncrement, sizeof(T));
+        }
+        free_avail_ = kAllocIncrement;
+      }
+      result = free_area_;
+      free_area_ += sizeof(T);
+      free_avail_ -= sizeof(T);
+    }
+    inuse_++;
+    return reinterpret_cast(result);
+  }
+
+  void Delete(T* p) {
+    *(reinterpret_cast(p)) = free_list_;
+    free_list_ = p;
+    inuse_--;
+  }
+
+  int inuse() const { return inuse_; }
+
+ private:
+  // How much to allocate from system at a time
+  static const int kAllocIncrement = 128 << 10;
+
+  // Free area from which to carve new objects
+  char* free_area_;
+  size_t free_avail_;
+
+  // Free list of already carved objects
+  void* free_list_;
+
+  // Number of allocated but unfreed objects
+  int inuse_;
+};
+
+// STL-compatible allocator which forwards allocations to a PageHeapAllocator.
+//
+// Like PageHeapAllocator, this requires external synchronization. To avoid multiple
+// separate STLPageHeapAllocator from sharing the same underlying PageHeapAllocator,
+// the |LockingTag| template argument should be used. Template instantiations with
+// different locking tags can safely be used concurrently.
+template 
+class STLPageHeapAllocator {
+ public:
+  typedef size_t     size_type;
+  typedef ptrdiff_t  difference_type;
+  typedef T*         pointer;
+  typedef const T*   const_pointer;
+  typedef T&         reference;
+  typedef const T&   const_reference;
+  typedef T          value_type;
+
+  template  struct rebind {
+    typedef STLPageHeapAllocator other;
+  };
+
+  STLPageHeapAllocator() { }
+  STLPageHeapAllocator(const STLPageHeapAllocator&) { }
+  template  STLPageHeapAllocator(const STLPageHeapAllocator&) { }
+  ~STLPageHeapAllocator() { }
+
+  pointer address(reference x) const { return &x; }
+  const_pointer address(const_reference x) const { return &x; }
+
+  size_type max_size() const { return size_t(-1) / sizeof(T); }
+
+  void construct(pointer p, const T& val) { ::new(p) T(val); }
+  void construct(pointer p) { ::new(p) T(); }
+  void destroy(pointer p) { p->~T(); }
+
+  // There's no state, so these allocators are always equal
+  bool operator==(const STLPageHeapAllocator&) const { return true; }
+  bool operator!=(const STLPageHeapAllocator&) const { return false; }
+
+  pointer allocate(size_type n, const void* = 0) {
+    if (!underlying_.initialized) {
+      underlying_.allocator.Init();
+      underlying_.initialized = true;
+    }
+
+    CHECK_CONDITION(n == 1);
+    return underlying_.allocator.New();
+  }
+  void deallocate(pointer p, size_type n) {
+    CHECK_CONDITION(n == 1);
+    underlying_.allocator.Delete(p);
+  }
+
+ private:
+  struct Storage {
+    explicit Storage(base::LinkerInitialized x) {}
+    PageHeapAllocator allocator;
+    bool initialized;
+  };
+  static Storage underlying_;
+};
+
+template
+typename STLPageHeapAllocator::Storage STLPageHeapAllocator::underlying_(base::LINKER_INITIALIZED);
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_PAGE_HEAP_ALLOCATOR_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/pagemap.h b/trunk/3rdparty/gperftools-2-fit/src/pagemap.h
new file mode 100644
index 000000000..dfa336c5f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/pagemap.h
@@ -0,0 +1,328 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+//
+// A data structure used by the caching malloc.  It maps from page# to
+// a pointer that contains info about that page.  We use two
+// representations: one for 32-bit addresses, and another for 64 bit
+// addresses.  Both representations provide the same interface.  The
+// first representation is implemented as a flat array, the seconds as
+// a three-level radix tree that strips away approximately 1/3rd of
+// the bits every time.
+//
+// The BITS parameter should be the number of bits required to hold
+// a page number.  E.g., with 32 bit pointers and 4K pages (i.e.,
+// page offset fits in lower 12 bits), BITS == 20.
+
+#ifndef TCMALLOC_PAGEMAP_H_
+#define TCMALLOC_PAGEMAP_H_
+
+#include "config.h"
+
+#include                      // for NULL, size_t
+#include                      // for memset
+#if defined HAVE_STDINT_H
+#include 
+#elif defined HAVE_INTTYPES_H
+#include 
+#else
+#include 
+#endif
+#include "internal_logging.h"  // for ASSERT
+
+// Single-level array
+template 
+class TCMalloc_PageMap1 {
+ private:
+  static const int LENGTH = 1 << BITS;
+
+  void** array_;
+
+ public:
+  typedef uintptr_t Number;
+
+  explicit TCMalloc_PageMap1(void* (*allocator)(size_t)) {
+    array_ = reinterpret_cast((*allocator)(sizeof(void*) << BITS));
+    memset(array_, 0, sizeof(void*) << BITS);
+  }
+
+  // Ensure that the map contains initialized entries "x .. x+n-1".
+  // Returns true if successful, false if we could not allocate memory.
+  bool Ensure(Number x, size_t n) {
+    // Nothing to do since flat array was allocated at start.  All
+    // that's left is to check for overflow (that is, we don't want to
+    // ensure a number y where array_[y] would be an out-of-bounds
+    // access).
+    return n <= LENGTH - x;   // an overflow-free way to do "x + n <= LENGTH"
+  }
+
+  void PreallocateMoreMemory() {}
+
+  // Return the current value for KEY.  Returns NULL if not yet set,
+  // or if k is out of range.
+  ATTRIBUTE_ALWAYS_INLINE
+  void* get(Number k) const {
+    if ((k >> BITS) > 0) {
+      return NULL;
+    }
+    return array_[k];
+  }
+
+  // REQUIRES "k" is in range "[0,2^BITS-1]".
+  // REQUIRES "k" has been ensured before.
+  //
+  // Sets the value 'v' for key 'k'.
+  void set(Number k, void* v) {
+    array_[k] = v;
+  }
+
+  // Return the first non-NULL pointer found in this map for
+  // a page number >= k.  Returns NULL if no such number is found.
+  void* Next(Number k) const {
+    while (k < (1 << BITS)) {
+      if (array_[k] != NULL) return array_[k];
+      k++;
+    }
+    return NULL;
+  }
+};
+
+// Two-level radix tree
+template 
+class TCMalloc_PageMap2 {
+ private:
+  static const int LEAF_BITS = (BITS + 1) / 2;
+  static const int LEAF_LENGTH = 1 << LEAF_BITS;
+
+  static const int ROOT_BITS = BITS - LEAF_BITS;
+  static const int ROOT_LENGTH = 1 << ROOT_BITS;
+
+  // Leaf node
+  struct Leaf {
+    void* values[LEAF_LENGTH];
+  };
+
+  Leaf* root_[ROOT_LENGTH];             // Pointers to child nodes
+  void* (*allocator_)(size_t);          // Memory allocator
+
+ public:
+  typedef uintptr_t Number;
+
+  explicit TCMalloc_PageMap2(void* (*allocator)(size_t)) {
+    allocator_ = allocator;
+    memset(root_, 0, sizeof(root_));
+  }
+
+  ATTRIBUTE_ALWAYS_INLINE
+  void* get(Number k) const {
+    const Number i1 = k >> LEAF_BITS;
+    const Number i2 = k & (LEAF_LENGTH-1);
+    if ((k >> BITS) > 0 || root_[i1] == NULL) {
+      return NULL;
+    }
+    return root_[i1]->values[i2];
+  }
+
+  void set(Number k, void* v) {
+    const Number i1 = k >> LEAF_BITS;
+    const Number i2 = k & (LEAF_LENGTH-1);
+    ASSERT(i1 < ROOT_LENGTH);
+    root_[i1]->values[i2] = v;
+  }
+
+  bool Ensure(Number start, size_t n) {
+    for (Number key = start; key <= start + n - 1; ) {
+      const Number i1 = key >> LEAF_BITS;
+
+      // Check for overflow
+      if (i1 >= ROOT_LENGTH)
+        return false;
+
+      // Make 2nd level node if necessary
+      if (root_[i1] == NULL) {
+        Leaf* leaf = reinterpret_cast((*allocator_)(sizeof(Leaf)));
+        if (leaf == NULL) return false;
+        memset(leaf, 0, sizeof(*leaf));
+        root_[i1] = leaf;
+      }
+
+      // Advance key past whatever is covered by this leaf node
+      key = ((key >> LEAF_BITS) + 1) << LEAF_BITS;
+    }
+    return true;
+  }
+
+  void PreallocateMoreMemory() {
+    // Allocate enough to keep track of all possible pages
+    if (BITS < 20) {
+      Ensure(0, Number(1) << BITS);
+    }
+  }
+
+  void* Next(Number k) const {
+    while (k < (Number(1) << BITS)) {
+      const Number i1 = k >> LEAF_BITS;
+      Leaf* leaf = root_[i1];
+      if (leaf != NULL) {
+        // Scan forward in leaf
+        for (Number i2 = k & (LEAF_LENGTH - 1); i2 < LEAF_LENGTH; i2++) {
+          if (leaf->values[i2] != NULL) {
+            return leaf->values[i2];
+          }
+        }
+      }
+      // Skip to next top-level entry
+      k = (i1 + 1) << LEAF_BITS;
+    }
+    return NULL;
+  }
+};
+
+// Three-level radix tree
+template 
+class TCMalloc_PageMap3 {
+ private:
+  // How many bits should we consume at each interior level
+  static const int INTERIOR_BITS = (BITS + 2) / 3; // Round-up
+  static const int INTERIOR_LENGTH = 1 << INTERIOR_BITS;
+
+  // How many bits should we consume at leaf level
+  static const int LEAF_BITS = BITS - 2*INTERIOR_BITS;
+  static const int LEAF_LENGTH = 1 << LEAF_BITS;
+
+  // Interior node
+  struct Node {
+    Node* ptrs[INTERIOR_LENGTH];
+  };
+
+  // Leaf node
+  struct Leaf {
+    void* values[LEAF_LENGTH];
+  };
+
+  Node  root_;                          // Root of radix tree
+  void* (*allocator_)(size_t);          // Memory allocator
+
+  Node* NewNode() {
+    Node* result = reinterpret_cast((*allocator_)(sizeof(Node)));
+    if (result != NULL) {
+      memset(result, 0, sizeof(*result));
+    }
+    return result;
+  }
+
+ public:
+  typedef uintptr_t Number;
+
+  explicit TCMalloc_PageMap3(void* (*allocator)(size_t)) {
+    allocator_ = allocator;
+    memset(&root_, 0, sizeof(root_));
+  }
+
+  ATTRIBUTE_ALWAYS_INLINE
+  void* get(Number k) const {
+    const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS);
+    const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1);
+    const Number i3 = k & (LEAF_LENGTH-1);
+    if ((k >> BITS) > 0 ||
+        root_.ptrs[i1] == NULL || root_.ptrs[i1]->ptrs[i2] == NULL) {
+      return NULL;
+    }
+    return reinterpret_cast(root_.ptrs[i1]->ptrs[i2])->values[i3];
+  }
+
+  void set(Number k, void* v) {
+    ASSERT(k >> BITS == 0);
+    const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS);
+    const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1);
+    const Number i3 = k & (LEAF_LENGTH-1);
+    reinterpret_cast(root_.ptrs[i1]->ptrs[i2])->values[i3] = v;
+  }
+
+  bool Ensure(Number start, size_t n) {
+    for (Number key = start; key <= start + n - 1; ) {
+      const Number i1 = key >> (LEAF_BITS + INTERIOR_BITS);
+      const Number i2 = (key >> LEAF_BITS) & (INTERIOR_LENGTH-1);
+
+      // Check for overflow
+      if (i1 >= INTERIOR_LENGTH || i2 >= INTERIOR_LENGTH)
+        return false;
+
+      // Make 2nd level node if necessary
+      if (root_.ptrs[i1] == NULL) {
+        Node* n = NewNode();
+        if (n == NULL) return false;
+        root_.ptrs[i1] = n;
+      }
+
+      // Make leaf node if necessary
+      if (root_.ptrs[i1]->ptrs[i2] == NULL) {
+        Leaf* leaf = reinterpret_cast((*allocator_)(sizeof(Leaf)));
+        if (leaf == NULL) return false;
+        memset(leaf, 0, sizeof(*leaf));
+        root_.ptrs[i1]->ptrs[i2] = reinterpret_cast(leaf);
+      }
+
+      // Advance key past whatever is covered by this leaf node
+      key = ((key >> LEAF_BITS) + 1) << LEAF_BITS;
+    }
+    return true;
+  }
+
+  void PreallocateMoreMemory() {
+  }
+
+  void* Next(Number k) const {
+    while (k < (Number(1) << BITS)) {
+      const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS);
+      const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1);
+      if (root_.ptrs[i1] == NULL) {
+        // Advance to next top-level entry
+        k = (i1 + 1) << (LEAF_BITS + INTERIOR_BITS);
+      } else {
+        Leaf* leaf = reinterpret_cast(root_.ptrs[i1]->ptrs[i2]);
+        if (leaf != NULL) {
+          for (Number i3 = (k & (LEAF_LENGTH-1)); i3 < LEAF_LENGTH; i3++) {
+            if (leaf->values[i3] != NULL) {
+              return leaf->values[i3];
+            }
+          }
+        }
+        // Advance to next interior entry
+        k = ((k >> LEAF_BITS) + 1) << LEAF_BITS;
+      }
+    }
+    return NULL;
+  }
+};
+
+#endif  // TCMALLOC_PAGEMAP_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/pprof b/trunk/3rdparty/gperftools-2-fit/src/pprof
new file mode 100755
index 000000000..3a816c62e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/pprof
@@ -0,0 +1,5580 @@
+#! /usr/bin/env perl
+
+# Copyright (c) 1998-2007, Google Inc.
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# ---
+# Program for printing the profile generated by common/profiler.cc,
+# or by the heap profiler (common/debugallocation.cc)
+#
+# The profile contains a sequence of entries of the form:
+#        
+# This program parses the profile, and generates user-readable
+# output.
+#
+# Examples:
+#
+# % tools/pprof "program" "profile"
+#   Enters "interactive" mode
+#
+# % tools/pprof --text "program" "profile"
+#   Generates one line per procedure
+#
+# % tools/pprof --gv "program" "profile"
+#   Generates annotated call-graph and displays via "gv"
+#
+# % tools/pprof --gv --focus=Mutex "program" "profile"
+#   Restrict to code paths that involve an entry that matches "Mutex"
+#
+# % tools/pprof --gv --focus=Mutex --ignore=string "program" "profile"
+#   Restrict to code paths that involve an entry that matches "Mutex"
+#   and does not match "string"
+#
+# % tools/pprof --list=IBF_CheckDocid "program" "profile"
+#   Generates disassembly listing of all routines with at least one
+#   sample that match the --list= pattern.  The listing is
+#   annotated with the flat and cumulative sample counts at each line.
+#
+# % tools/pprof --disasm=IBF_CheckDocid "program" "profile"
+#   Generates disassembly listing of all routines with at least one
+#   sample that match the --disasm= pattern.  The listing is
+#   annotated with the flat and cumulative sample counts at each PC value.
+#
+# TODO: Use color to indicate files?
+
+use strict;
+use warnings;
+use Getopt::Long;
+use Cwd;
+use POSIX;
+
+my $PPROF_VERSION = "2.0";
+
+# These are the object tools we use which can come from a
+# user-specified location using --tools, from the PPROF_TOOLS
+# environment variable, or from the environment.
+my %obj_tool_map = (
+  "objdump" => "objdump",
+  "nm" => "nm",
+  "addr2line" => "addr2line",
+  "c++filt" => "c++filt",
+  ## ConfigureObjTools may add architecture-specific entries:
+  #"nm_pdb" => "nm-pdb",       # for reading windows (PDB-format) executables
+  #"addr2line_pdb" => "addr2line-pdb",                                # ditto
+  #"otool" => "otool",         # equivalent of objdump on OS X
+);
+# NOTE: these are lists, so you can put in commandline flags if you want.
+my @DOT = ("dot");          # leave non-absolute, since it may be in /usr/local
+my @GV = ("gv");
+my @EVINCE = ("evince");    # could also be xpdf or perhaps acroread
+my @KCACHEGRIND = ("kcachegrind");
+my @PS2PDF = ("ps2pdf");
+# These are used for dynamic profiles
+my @URL_FETCHER = ("curl", "-s");
+
+# These are the web pages that servers need to support for dynamic profiles
+my $HEAP_PAGE = "/pprof/heap";
+my $PROFILE_PAGE = "/pprof/profile";   # must support cgi-param "?seconds=#"
+my $PMUPROFILE_PAGE = "/pprof/pmuprofile(?:\\?.*)?"; # must support cgi-param
+                                                # ?seconds=#&event=x&period=n
+my $GROWTH_PAGE = "/pprof/growth";
+my $CONTENTION_PAGE = "/pprof/contention";
+my $WALL_PAGE = "/pprof/wall(?:\\?.*)?";  # accepts options like namefilter
+my $FILTEREDPROFILE_PAGE = "/pprof/filteredprofile(?:\\?.*)?";
+my $CENSUSPROFILE_PAGE = "/pprof/censusprofile(?:\\?.*)?"; # must support cgi-param
+                                                       # "?seconds=#",
+                                                       # "?tags_regexp=#" and
+                                                       # "?type=#".
+my $SYMBOL_PAGE = "/pprof/symbol";     # must support symbol lookup via POST
+my $PROGRAM_NAME_PAGE = "/pprof/cmdline";
+
+# These are the web pages that can be named on the command line.
+# All the alternatives must begin with /.
+my $PROFILES = "($HEAP_PAGE|$PROFILE_PAGE|$PMUPROFILE_PAGE|" .
+               "$GROWTH_PAGE|$CONTENTION_PAGE|$WALL_PAGE|" .
+               "$FILTEREDPROFILE_PAGE|$CENSUSPROFILE_PAGE)";
+
+# default binary name
+my $UNKNOWN_BINARY = "(unknown)";
+
+# There is a pervasive dependency on the length (in hex characters,
+# i.e., nibbles) of an address, distinguishing between 32-bit and
+# 64-bit profiles.  To err on the safe size, default to 64-bit here:
+my $address_length = 16;
+
+my $dev_null = "/dev/null";
+if (! -e $dev_null && $^O =~ /MSWin/) {    # $^O is the OS perl was built for
+  $dev_null = "nul";
+}
+
+# A list of paths to search for shared object files
+my @prefix_list = ();
+
+# Special routine name that should not have any symbols.
+# Used as separator to parse "addr2line -i" output.
+my $sep_symbol = '_fini';
+my $sep_address = undef;
+
+my @stackTraces;
+
+##### Argument parsing #####
+
+sub usage_string {
+  return < 
+    is a space separated list of profile names.
+$0 [options] 
+    is a list of profile files where each file contains
+   the necessary symbol mappings  as well as profile data (likely generated
+   with --raw).
+$0 [options] 
+    is a remote form.  Symbols are obtained from host:port$SYMBOL_PAGE
+
+   Each name can be:
+   /path/to/profile        - a path to a profile file
+   host:port[/]   - a location of a service to get profile from
+
+   The / can be $HEAP_PAGE, $PROFILE_PAGE, /pprof/pmuprofile,
+                         $GROWTH_PAGE, $CONTENTION_PAGE, /pprof/wall,
+                         $CENSUSPROFILE_PAGE, or /pprof/filteredprofile.
+   For instance:
+     $0 http://myserver.com:80$HEAP_PAGE
+   If / is omitted, the service defaults to $PROFILE_PAGE (cpu profiling).
+$0 --symbols 
+   Maps addresses to symbol names.  In this mode, stdin should be a
+   list of library mappings, in the same format as is found in the heap-
+   and cpu-profile files (this loosely matches that of /proc/self/maps
+   on linux), followed by a list of hex addresses to map, one per line.
+
+   For more help with querying remote servers, including how to add the
+   necessary server-side support code, see this filename (or one like it):
+
+   /usr/doc/gperftools-$PPROF_VERSION/pprof_remote_servers.html
+
+Options:
+   --cum               Sort by cumulative data
+   --base=       Subtract  from  before display
+   --interactive       Run in interactive mode (interactive "help" gives help) [default]
+   --seconds=       Length of time for dynamic profiles [default=30 secs]
+   --add_lib=    Read additional symbols and line info from the given library
+   --lib_prefix=  Comma separated list of library path prefixes
+   --no_strip_temp     Do not strip template arguments from function names
+
+Reporting Granularity:
+   --addresses         Report at address level
+   --lines             Report at source line level
+   --functions         Report at function level [default]
+   --files             Report at source file level
+
+Output type:
+   --text              Generate text report
+   --stacks            Generate stack traces similar to the heap profiler (requires --text)
+   --callgrind         Generate callgrind format to stdout
+   --gv                Generate Postscript and display
+   --evince            Generate PDF and display
+   --web               Generate SVG and display
+   --list=     Generate source listing of matching routines
+   --disasm=   Generate disassembly of matching routines
+   --symbols           Print demangled symbol names found at given addresses
+   --dot               Generate DOT file to stdout
+   --ps                Generate Postscript to stdout
+   --pdf               Generate PDF to stdout
+   --svg               Generate SVG to stdout
+   --gif               Generate GIF to stdout
+   --raw               Generate symbolized pprof data (useful with remote fetch)
+   --collapsed         Generate collapsed stacks for building flame graphs
+                       (see http://www.brendangregg.com/flamegraphs.html)
+
+Heap-Profile Options:
+   --inuse_space       Display in-use (mega)bytes [default]
+   --inuse_objects     Display in-use objects
+   --alloc_space       Display allocated (mega)bytes
+   --alloc_objects     Display allocated objects
+   --show_bytes        Display space in bytes
+   --drop_negative     Ignore negative differences
+
+Contention-profile options:
+   --total_delay       Display total delay at each region [default]
+   --contentions       Display number of delays at each region
+   --mean_delay        Display mean delay at each region
+
+Call-graph Options:
+   --nodecount=     Show at most so many nodes [default=80]
+   --nodefraction=  Hide nodes below *total [default=.005]
+   --edgefraction=  Hide edges below *total [default=.001]
+   --maxdegree=     Max incoming/outgoing edges per node [default=8]
+   --focus=    Focus on nodes matching 
+   --ignore=   Ignore nodes matching 
+   --scale=         Set GV scaling [default=0]
+   --heapcheck         Make nodes with non-0 object counts
+                       (i.e. direct leak generators) more visible
+
+Miscellaneous:
+   --no-auto-signal-frm Automatically drop 2nd frame that is always same (cpu-only)
+                       (assuming that it is artifact of bad stack captures
+                        which include signal handler frames)
+   --show_addresses    Always show addresses when applicable
+   --tools=[,...]   \$PATH for object tool pathnames
+   --test              Run unit tests
+   --help              This message
+   --version           Version information
+
+Environment Variables:
+   PPROF_TMPDIR        Profiles directory. Defaults to \$HOME/pprof
+   PPROF_TOOLS         Prefix for object tools pathnames
+
+Examples:
+
+$0 /bin/ls ls.prof
+                       Enters "interactive" mode
+$0 --text /bin/ls ls.prof
+                       Outputs one line per procedure
+$0 --web /bin/ls ls.prof
+                       Displays annotated call-graph in web browser
+$0 --gv /bin/ls ls.prof
+                       Displays annotated call-graph via 'gv'
+$0 --gv --focus=Mutex /bin/ls ls.prof
+                       Restricts to code paths including a .*Mutex.* entry
+$0 --gv --focus=Mutex --ignore=string /bin/ls ls.prof
+                       Code paths including Mutex but not string
+$0 --list=getdir /bin/ls ls.prof
+                       (Per-line) annotated source listing for getdir()
+$0 --disasm=getdir /bin/ls ls.prof
+                       (Per-PC) annotated disassembly for getdir()
+
+$0 http://localhost:1234/
+                       Enters "interactive" mode
+$0 --text localhost:1234
+                       Outputs one line per procedure for localhost:1234
+$0 --raw localhost:1234 > ./local.raw
+$0 --text ./local.raw
+                       Fetches a remote profile for later analysis and then
+                       analyzes it in text mode.
+EOF
+}
+
+sub version_string {
+  return < \$main::opt_help,
+             "version!"       => \$main::opt_version,
+             "show_addresses!"=> \$main::opt_show_addresses,
+             "no-auto-signal-frm!"=> \$main::opt_no_auto_signal_frames,
+             "cum!"           => \$main::opt_cum,
+             "base=s"         => \$main::opt_base,
+             "seconds=i"      => \$main::opt_seconds,
+             "add_lib=s"      => \$main::opt_lib,
+             "lib_prefix=s"   => \$main::opt_lib_prefix,
+             "functions!"     => \$main::opt_functions,
+             "lines!"         => \$main::opt_lines,
+             "addresses!"     => \$main::opt_addresses,
+             "files!"         => \$main::opt_files,
+             "text!"          => \$main::opt_text,
+             "stacks!"        => \$main::opt_stacks,
+             "callgrind!"     => \$main::opt_callgrind,
+             "list=s"         => \$main::opt_list,
+             "disasm=s"       => \$main::opt_disasm,
+             "symbols!"       => \$main::opt_symbols,
+             "gv!"            => \$main::opt_gv,
+             "evince!"        => \$main::opt_evince,
+             "web!"           => \$main::opt_web,
+             "dot!"           => \$main::opt_dot,
+             "ps!"            => \$main::opt_ps,
+             "pdf!"           => \$main::opt_pdf,
+             "svg!"           => \$main::opt_svg,
+             "gif!"           => \$main::opt_gif,
+             "raw!"           => \$main::opt_raw,
+             "collapsed!"     => \$main::opt_collapsed,
+             "interactive!"   => \$main::opt_interactive,
+             "nodecount=i"    => \$main::opt_nodecount,
+             "nodefraction=f" => \$main::opt_nodefraction,
+             "edgefraction=f" => \$main::opt_edgefraction,
+             "maxdegree=i"    => \$main::opt_maxdegree,
+             "focus=s"        => \$main::opt_focus,
+             "ignore=s"       => \$main::opt_ignore,
+             "scale=i"        => \$main::opt_scale,
+             "heapcheck"      => \$main::opt_heapcheck,
+             "inuse_space!"   => \$main::opt_inuse_space,
+             "inuse_objects!" => \$main::opt_inuse_objects,
+             "alloc_space!"   => \$main::opt_alloc_space,
+             "alloc_objects!" => \$main::opt_alloc_objects,
+             "show_bytes!"    => \$main::opt_show_bytes,
+             "drop_negative!" => \$main::opt_drop_negative,
+             "total_delay!"   => \$main::opt_total_delay,
+             "contentions!"   => \$main::opt_contentions,
+             "mean_delay!"    => \$main::opt_mean_delay,
+             "tools=s"        => \$main::opt_tools,
+             "no_strip_temp!" => \$main::opt_no_strip_temp,
+             "test!"          => \$main::opt_test,
+             "debug!"         => \$main::opt_debug,
+             # Undocumented flags used only by unittests:
+             "test_stride=i"  => \$main::opt_test_stride,
+      ) || usage("Invalid option(s)");
+
+  # Deal with the standard --help and --version
+  if ($main::opt_help) {
+    print usage_string();
+    exit(0);
+  }
+
+  if ($main::opt_version) {
+    print version_string();
+    exit(0);
+  }
+
+  # Disassembly/listing/symbols mode requires address-level info
+  if ($main::opt_disasm || $main::opt_list || $main::opt_symbols) {
+    $main::opt_functions = 0;
+    $main::opt_lines = 0;
+    $main::opt_addresses = 1;
+    $main::opt_files = 0;
+  }
+
+  # Check heap-profiling flags
+  if ($main::opt_inuse_space +
+      $main::opt_inuse_objects +
+      $main::opt_alloc_space +
+      $main::opt_alloc_objects > 1) {
+    usage("Specify at most on of --inuse/--alloc options");
+  }
+
+  # Check output granularities
+  my $grains =
+      $main::opt_functions +
+      $main::opt_lines +
+      $main::opt_addresses +
+      $main::opt_files +
+      0;
+  if ($grains > 1) {
+    usage("Only specify one output granularity option");
+  }
+  if ($grains == 0) {
+    $main::opt_functions = 1;
+  }
+
+  # Check output modes
+  my $modes =
+      $main::opt_text +
+      $main::opt_callgrind +
+      ($main::opt_list eq '' ? 0 : 1) +
+      ($main::opt_disasm eq '' ? 0 : 1) +
+      ($main::opt_symbols == 0 ? 0 : 1) +
+      $main::opt_gv +
+      $main::opt_evince +
+      $main::opt_web +
+      $main::opt_dot +
+      $main::opt_ps +
+      $main::opt_pdf +
+      $main::opt_svg +
+      $main::opt_gif +
+      $main::opt_raw +
+      $main::opt_collapsed +
+      $main::opt_interactive +
+      0;
+  if ($modes > 1) {
+    usage("Only specify one output mode");
+  }
+  if ($modes == 0) {
+    if (-t STDOUT) {  # If STDOUT is a tty, activate interactive mode
+      $main::opt_interactive = 1;
+    } else {
+      $main::opt_text = 1;
+    }
+  }
+
+  if ($main::opt_test) {
+    RunUnitTests();
+    # Should not return
+    exit(1);
+  }
+
+  # Binary name and profile arguments list
+  $main::prog = "";
+  @main::pfile_args = ();
+
+  # Remote profiling without a binary (using $SYMBOL_PAGE instead)
+  if (@ARGV > 0) {
+    if (IsProfileURL($ARGV[0])) {
+      printf STDERR "Using remote profile at $ARGV[0].\n";
+      $main::use_symbol_page = 1;
+    } elsif (IsSymbolizedProfileFile($ARGV[0])) {
+      $main::use_symbolized_profile = 1;
+      $main::prog = $UNKNOWN_BINARY;  # will be set later from the profile file
+    }
+  }
+
+  if ($main::use_symbol_page || $main::use_symbolized_profile) {
+    # We don't need a binary!
+    my %disabled = ('--lines' => $main::opt_lines,
+                    '--disasm' => $main::opt_disasm);
+    for my $option (keys %disabled) {
+      usage("$option cannot be used without a binary") if $disabled{$option};
+    }
+    # Set $main::prog later...
+    scalar(@ARGV) || usage("Did not specify profile file");
+  } elsif ($main::opt_symbols) {
+    # --symbols needs a binary-name (to run nm on, etc) but not profiles
+    $main::prog = shift(@ARGV) || usage("Did not specify program");
+  } else {
+    $main::prog = shift(@ARGV) || usage("Did not specify program");
+    scalar(@ARGV) || usage("Did not specify profile file");
+  }
+
+  # Parse profile file/location arguments
+  foreach my $farg (@ARGV) {
+    if ($farg =~ m/(.*)\@([0-9]+)(|\/.*)$/ ) {
+      my $machine = $1;
+      my $num_machines = $2;
+      my $path = $3;
+      for (my $i = 0; $i < $num_machines; $i++) {
+        unshift(@main::pfile_args, "$i.$machine$path");
+      }
+    } else {
+      unshift(@main::pfile_args, $farg);
+    }
+  }
+
+  if ($main::use_symbol_page) {
+    unless (IsProfileURL($main::pfile_args[0])) {
+      error("The first profile should be a remote form to use $SYMBOL_PAGE\n");
+    }
+    CheckSymbolPage();
+    $main::prog = FetchProgramName();
+  } elsif (!$main::use_symbolized_profile) {  # may not need objtools!
+    ConfigureObjTools($main::prog)
+  }
+
+  # Break the opt_lib_prefix into the prefix_list array
+  @prefix_list = split (',', $main::opt_lib_prefix);
+
+  # Remove trailing / from the prefixes, in the list to prevent
+  # searching things like /my/path//lib/mylib.so
+  foreach (@prefix_list) {
+    s|/+$||;
+  }
+}
+
+sub Main() {
+  Init();
+  $main::collected_profile = undef;
+  @main::profile_files = ();
+  $main::op_time = time();
+
+  # Printing symbols is special and requires a lot less info that most.
+  if ($main::opt_symbols) {
+    PrintSymbols(*STDIN);   # Get /proc/maps and symbols output from stdin
+    return;
+  }
+
+  # Fetch all profile data
+  FetchDynamicProfiles();
+
+  # this will hold symbols that we read from the profile files
+  my $symbol_map = {};
+
+  # Read one profile, pick the last item on the list
+  my $data = ReadProfile($main::prog, pop(@main::profile_files));
+  my $profile = $data->{profile};
+  my $pcs = $data->{pcs};
+  my $libs = $data->{libs};   # Info about main program and shared libraries
+  $symbol_map = MergeSymbols($symbol_map, $data->{symbols});
+
+  # Add additional profiles, if available.
+  if (scalar(@main::profile_files) > 0) {
+    foreach my $pname (@main::profile_files) {
+      my $data2 = ReadProfile($main::prog, $pname);
+      $profile = AddProfile($profile, $data2->{profile});
+      $pcs = AddPcs($pcs, $data2->{pcs});
+      $symbol_map = MergeSymbols($symbol_map, $data2->{symbols});
+    }
+  }
+
+  # Subtract base from profile, if specified
+  if ($main::opt_base ne '') {
+    my $base = ReadProfile($main::prog, $main::opt_base);
+    $profile = SubtractProfile($profile, $base->{profile});
+    $pcs = AddPcs($pcs, $base->{pcs});
+    $symbol_map = MergeSymbols($symbol_map, $base->{symbols});
+  }
+
+  # Get total data in profile
+  my $total = TotalProfile($profile);
+
+  # Collect symbols
+  my $symbols;
+  if ($main::use_symbolized_profile) {
+    $symbols = FetchSymbols($pcs, $symbol_map);
+  } elsif ($main::use_symbol_page) {
+    $symbols = FetchSymbols($pcs);
+  } else {
+    # TODO(csilvers): $libs uses the /proc/self/maps data from profile1,
+    # which may differ from the data from subsequent profiles, especially
+    # if they were run on different machines.  Use appropriate libs for
+    # each pc somehow.
+    $symbols = ExtractSymbols($libs, $pcs);
+  }
+
+  # Remove uniniteresting stack items
+  $profile = RemoveUninterestingFrames($symbols, $profile);
+
+  # Focus?
+  if ($main::opt_focus ne '') {
+    $profile = FocusProfile($symbols, $profile, $main::opt_focus);
+  }
+
+  # Ignore?
+  if ($main::opt_ignore ne '') {
+    $profile = IgnoreProfile($symbols, $profile, $main::opt_ignore);
+  }
+
+  my $calls = ExtractCalls($symbols, $profile);
+
+  # Reduce profiles to required output granularity, and also clean
+  # each stack trace so a given entry exists at most once.
+  my $reduced = ReduceProfile($symbols, $profile);
+
+  # Get derived profiles
+  my $flat = FlatProfile($reduced);
+  my $cumulative = CumulativeProfile($reduced);
+
+  # Print
+  if (!$main::opt_interactive) {
+    if ($main::opt_disasm) {
+      PrintDisassembly($libs, $flat, $cumulative, $main::opt_disasm);
+    } elsif ($main::opt_list) {
+      PrintListing($total, $libs, $flat, $cumulative, $main::opt_list, 0);
+    } elsif ($main::opt_text) {
+      # Make sure the output is empty when have nothing to report
+      # (only matters when --heapcheck is given but we must be
+      # compatible with old branches that did not pass --heapcheck always):
+      if ($total != 0) {
+        printf("Total: %s %s\n", Unparse($total), Units());
+      }
+      if ($main::opt_stacks) {
+        printf("Stacks:\n\n");
+        PrintStacksForText($symbols, $profile);
+      }
+      PrintText($symbols, $flat, $cumulative, -1);
+    } elsif ($main::opt_raw) {
+      PrintSymbolizedProfile($symbols, $profile, $main::prog);
+    } elsif ($main::opt_collapsed) {
+      PrintCollapsedStacks($symbols, $profile);
+    } elsif ($main::opt_callgrind) {
+      PrintCallgrind($calls);
+    } else {
+      if (PrintDot($main::prog, $symbols, $profile, $flat, $cumulative, $total)) {
+        if ($main::opt_gv) {
+          RunGV(TempName($main::next_tmpfile, "ps"), "");
+        } elsif ($main::opt_evince) {
+          RunEvince(TempName($main::next_tmpfile, "pdf"), "");
+        } elsif ($main::opt_web) {
+          my $tmp = TempName($main::next_tmpfile, "svg");
+          RunWeb($tmp);
+          # The command we run might hand the file name off
+          # to an already running browser instance and then exit.
+          # Normally, we'd remove $tmp on exit (right now),
+          # but fork a child to remove $tmp a little later, so that the
+          # browser has time to load it first.
+          delete $main::tempnames{$tmp};
+          if (fork() == 0) {
+            sleep 5;
+            unlink($tmp);
+            exit(0);
+          }
+        }
+      } else {
+        cleanup();
+        exit(1);
+      }
+    }
+  } else {
+    InteractiveMode($profile, $symbols, $libs, $total);
+  }
+
+  cleanup();
+  exit(0);
+}
+
+##### Entry Point #####
+
+Main();
+
+# Temporary code to detect if we're running on a Goobuntu system.
+# These systems don't have the right stuff installed for the special
+# Readline libraries to work, so as a temporary workaround, we default
+# to using the normal stdio code, rather than the fancier readline-based
+# code
+sub ReadlineMightFail {
+  if (-e '/lib/libtermcap.so.2') {
+    return 0;  # libtermcap exists, so readline should be okay
+  } else {
+    return 1;
+  }
+}
+
+sub RunGV {
+  my $fname = shift;
+  my $bg = shift;       # "" or " &" if we should run in background
+  if (!system(ShellEscape(@GV, "--version") . " >$dev_null 2>&1")) {
+    # Options using double dash are supported by this gv version.
+    # Also, turn on noantialias to better handle bug in gv for
+    # postscript files with large dimensions.
+    # TODO: Maybe we should not pass the --noantialias flag
+    # if the gv version is known to work properly without the flag.
+    system(ShellEscape(@GV, "--scale=$main::opt_scale", "--noantialias", $fname)
+           . $bg);
+  } else {
+    # Old gv version - only supports options that use single dash.
+    print STDERR ShellEscape(@GV, "-scale", $main::opt_scale) . "\n";
+    system(ShellEscape(@GV, "-scale", "$main::opt_scale", $fname) . $bg);
+  }
+}
+
+sub RunEvince {
+  my $fname = shift;
+  my $bg = shift;       # "" or " &" if we should run in background
+  system(ShellEscape(@EVINCE, $fname) . $bg);
+}
+
+sub RunWeb {
+  my $fname = shift;
+  print STDERR "Loading web page file:///$fname\n";
+
+  if (`uname` =~ /Darwin/) {
+    # OS X: open will use standard preference for SVG files.
+    system("/usr/bin/open", $fname);
+    return;
+  }
+
+  if (`uname` =~ /MINGW/) {
+    # Windows(MinGW): open will use standard preference for SVG files.
+    system("cmd", "/c", "start", $fname);
+    return;
+  }
+
+  # Some kind of Unix; try generic symlinks, then specific browsers.
+  # (Stop once we find one.)
+  # Works best if the browser is already running.
+  my @alt = (
+    "/etc/alternatives/gnome-www-browser",
+    "/etc/alternatives/x-www-browser",
+    "google-chrome",
+    "firefox",
+  );
+  foreach my $b (@alt) {
+    if (system($b, $fname) == 0) {
+      return;
+    }
+  }
+
+  print STDERR "Could not load web browser.\n";
+}
+
+sub RunKcachegrind {
+  my $fname = shift;
+  my $bg = shift;       # "" or " &" if we should run in background
+  print STDERR "Starting '@KCACHEGRIND " . $fname . $bg . "'\n";
+  system(ShellEscape(@KCACHEGRIND, $fname) . $bg);
+}
+
+
+##### Interactive helper routines #####
+
+sub InteractiveMode {
+  $| = 1;  # Make output unbuffered for interactive mode
+  my ($orig_profile, $symbols, $libs, $total) = @_;
+
+  print STDERR "Welcome to pprof!  For help, type 'help'.\n";
+
+  # Use ReadLine if it's installed and input comes from a console.
+  if ( -t STDIN &&
+       !ReadlineMightFail() &&
+       defined(eval {require Term::ReadLine}) ) {
+    my $term = new Term::ReadLine 'pprof';
+    while ( defined ($_ = $term->readline('(pprof) '))) {
+      $term->addhistory($_) if /\S/;
+      if (!InteractiveCommand($orig_profile, $symbols, $libs, $total, $_)) {
+        last;    # exit when we get an interactive command to quit
+      }
+    }
+  } else {       # don't have readline
+    while (1) {
+      print STDERR "(pprof) ";
+      $_ = ;
+      last if ! defined $_ ;
+      s/\r//g;         # turn windows-looking lines into unix-looking lines
+
+      # Save some flags that might be reset by InteractiveCommand()
+      my $save_opt_lines = $main::opt_lines;
+
+      if (!InteractiveCommand($orig_profile, $symbols, $libs, $total, $_)) {
+        last;    # exit when we get an interactive command to quit
+      }
+
+      # Restore flags
+      $main::opt_lines = $save_opt_lines;
+    }
+  }
+}
+
+# Takes two args: orig profile, and command to run.
+# Returns 1 if we should keep going, or 0 if we were asked to quit
+sub InteractiveCommand {
+  my($orig_profile, $symbols, $libs, $total, $command) = @_;
+  $_ = $command;                # just to make future m//'s easier
+  if (!defined($_)) {
+    print STDERR "\n";
+    return 0;
+  }
+  if (m/^\s*quit/) {
+    return 0;
+  }
+  if (m/^\s*help/) {
+    InteractiveHelpMessage();
+    return 1;
+  }
+  # Clear all the mode options -- mode is controlled by "$command"
+  $main::opt_text = 0;
+  $main::opt_callgrind = 0;
+  $main::opt_disasm = 0;
+  $main::opt_list = 0;
+  $main::opt_gv = 0;
+  $main::opt_evince = 0;
+  $main::opt_cum = 0;
+
+  if (m/^\s*(text|top)(\d*)\s*(.*)/) {
+    $main::opt_text = 1;
+
+    my $line_limit = ($2 ne "") ? int($2) : 10;
+
+    my $routine;
+    my $ignore;
+    ($routine, $ignore) = ParseInteractiveArgs($3);
+
+    my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore);
+    my $reduced = ReduceProfile($symbols, $profile);
+
+    # Get derived profiles
+    my $flat = FlatProfile($reduced);
+    my $cumulative = CumulativeProfile($reduced);
+
+    PrintText($symbols, $flat, $cumulative, $line_limit);
+    return 1;
+  }
+  if (m/^\s*callgrind\s*([^ \n]*)/) {
+    $main::opt_callgrind = 1;
+
+    # Get derived profiles
+    my $calls = ExtractCalls($symbols, $orig_profile);
+    my $filename = $1;
+    if ( $1 eq '' ) {
+      $filename = TempName($main::next_tmpfile, "callgrind");
+    }
+    PrintCallgrind($calls, $filename);
+    if ( $1 eq '' ) {
+      RunKcachegrind($filename, " & ");
+      $main::next_tmpfile++;
+    }
+
+    return 1;
+  }
+  if (m/^\s*(web)?list\s*(.+)/) {
+    my $html = (defined($1) && ($1 eq "web"));
+    $main::opt_list = 1;
+
+    my $routine;
+    my $ignore;
+    ($routine, $ignore) = ParseInteractiveArgs($2);
+
+    my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore);
+    my $reduced = ReduceProfile($symbols, $profile);
+
+    # Get derived profiles
+    my $flat = FlatProfile($reduced);
+    my $cumulative = CumulativeProfile($reduced);
+
+    PrintListing($total, $libs, $flat, $cumulative, $routine, $html);
+    return 1;
+  }
+  if (m/^\s*disasm\s*(.+)/) {
+    $main::opt_disasm = 1;
+
+    my $routine;
+    my $ignore;
+    ($routine, $ignore) = ParseInteractiveArgs($1);
+
+    # Process current profile to account for various settings
+    my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore);
+    my $reduced = ReduceProfile($symbols, $profile);
+
+    # Get derived profiles
+    my $flat = FlatProfile($reduced);
+    my $cumulative = CumulativeProfile($reduced);
+
+    PrintDisassembly($libs, $flat, $cumulative, $routine);
+    return 1;
+  }
+  if (m/^\s*(gv|web|evince)\s*(.*)/) {
+    $main::opt_gv = 0;
+    $main::opt_evince = 0;
+    $main::opt_web = 0;
+    if ($1 eq "gv") {
+      $main::opt_gv = 1;
+    } elsif ($1 eq "evince") {
+      $main::opt_evince = 1;
+    } elsif ($1 eq "web") {
+      $main::opt_web = 1;
+    }
+
+    my $focus;
+    my $ignore;
+    ($focus, $ignore) = ParseInteractiveArgs($2);
+
+    # Process current profile to account for various settings
+    my $profile = ProcessProfile($total, $orig_profile, $symbols,
+                                 $focus, $ignore);
+    my $reduced = ReduceProfile($symbols, $profile);
+
+    # Get derived profiles
+    my $flat = FlatProfile($reduced);
+    my $cumulative = CumulativeProfile($reduced);
+
+    if (PrintDot($main::prog, $symbols, $profile, $flat, $cumulative, $total)) {
+      if ($main::opt_gv) {
+        RunGV(TempName($main::next_tmpfile, "ps"), " &");
+      } elsif ($main::opt_evince) {
+        RunEvince(TempName($main::next_tmpfile, "pdf"), " &");
+      } elsif ($main::opt_web) {
+        RunWeb(TempName($main::next_tmpfile, "svg"));
+      }
+      $main::next_tmpfile++;
+    }
+    return 1;
+  }
+  if (m/^\s*$/) {
+    return 1;
+  }
+  print STDERR "Unknown command: try 'help'.\n";
+  return 1;
+}
+
+
+sub ProcessProfile {
+  my $total_count = shift;
+  my $orig_profile = shift;
+  my $symbols = shift;
+  my $focus = shift;
+  my $ignore = shift;
+
+  # Process current profile to account for various settings
+  my $profile = $orig_profile;
+  printf("Total: %s %s\n", Unparse($total_count), Units());
+  if ($focus ne '') {
+    $profile = FocusProfile($symbols, $profile, $focus);
+    my $focus_count = TotalProfile($profile);
+    printf("After focusing on '%s': %s %s of %s (%0.1f%%)\n",
+           $focus,
+           Unparse($focus_count), Units(),
+           Unparse($total_count), ($focus_count*100.0) / $total_count);
+  }
+  if ($ignore ne '') {
+    $profile = IgnoreProfile($symbols, $profile, $ignore);
+    my $ignore_count = TotalProfile($profile);
+    printf("After ignoring '%s': %s %s of %s (%0.1f%%)\n",
+           $ignore,
+           Unparse($ignore_count), Units(),
+           Unparse($total_count),
+           ($ignore_count*100.0) / $total_count);
+  }
+
+  return $profile;
+}
+
+sub InteractiveHelpMessage {
+  print STDERR <{$k};
+    my @addrs = split(/\n/, $k);
+    if ($#addrs >= 0) {
+      my $depth = $#addrs + 1;
+      # int(foo / 2**32) is the only reliable way to get rid of bottom
+      # 32 bits on both 32- and 64-bit systems.
+      if ($big_endian) {
+        print pack('L*', int($count / 2**32), $count & 0xFFFFFFFF);
+        print pack('L*', int($depth / 2**32), $depth & 0xFFFFFFFF);
+      }
+      else {
+        print pack('L*', $count & 0xFFFFFFFF, int($count / 2**32));
+        print pack('L*', $depth & 0xFFFFFFFF, int($depth / 2**32));
+      }
+
+      foreach my $full_addr (@addrs) {
+        my $addr = $full_addr;
+        $addr =~ s/0x0*//;  # strip off leading 0x, zeroes
+        if (length($addr) > 16) {
+          print STDERR "Invalid address in profile: $full_addr\n";
+          next;
+        }
+        my $low_addr = substr($addr, -8);       # get last 8 hex chars
+        my $high_addr = substr($addr, -16, 8);  # get up to 8 more hex chars
+        if ($big_endian) {
+          print pack('L*', hex('0x' . $high_addr), hex('0x' . $low_addr));
+        }
+        else {
+          print pack('L*', hex('0x' . $low_addr), hex('0x' . $high_addr));
+        }
+      }
+    }
+  }
+}
+
+# Print symbols and profile data
+sub PrintSymbolizedProfile {
+  my $symbols = shift;
+  my $profile = shift;
+  my $prog = shift;
+
+  $SYMBOL_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $symbol_marker = $&;
+
+  print '--- ', $symbol_marker, "\n";
+  if (defined($prog)) {
+    print 'binary=', $prog, "\n";
+  }
+  while (my ($pc, $name) = each(%{$symbols})) {
+    my $sep = ' ';
+    print '0x', $pc;
+    # We have a list of function names, which include the inlined
+    # calls.  They are separated (and terminated) by --, which is
+    # illegal in function names.
+    for (my $j = 2; $j <= $#{$name}; $j += 3) {
+      print $sep, $name->[$j];
+      $sep = '--';
+    }
+    print "\n";
+  }
+  print '---', "\n";
+
+  $PROFILE_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $profile_marker = $&;
+  print '--- ', $profile_marker, "\n";
+  if (defined($main::collected_profile)) {
+    # if used with remote fetch, simply dump the collected profile to output.
+    open(SRC, "<$main::collected_profile");
+    while () {
+      print $_;
+    }
+    close(SRC);
+  } else {
+    # dump a cpu-format profile to standard out
+    PrintProfileData($profile);
+  }
+}
+
+# Print text output
+sub PrintText {
+  my $symbols = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $line_limit = shift;
+
+  if ($main::opt_stacks && @stackTraces) {
+      foreach (sort { (split " ", $b)[1] <=> (split " ", $a)[1]; } @stackTraces) {
+	  print "$_\n" if $main::opt_debug;
+	  my ($n1, $s1, $n2, $s2, @addrs) = split;
+	  print "Leak of $s1 bytes in $n1 objects allocated from:\n";
+	  foreach my $pcstr (@addrs) {
+	      $pcstr =~ s/^0x//;
+	      my $sym;
+	      if (! defined $symbols->{$pcstr}) {
+		  $sym = "unknown";
+	      } else {
+		  $sym = "$symbols->{$pcstr}[0] $symbols->{$pcstr}[1]";
+	      }
+	      print "\t@ $pcstr $sym\n";
+	  }
+      }
+      print "\n";
+  }
+
+  my $total = TotalProfile($flat);
+
+  # Which profile to sort by?
+  my $s = $main::opt_cum ? $cumulative : $flat;
+
+  my $running_sum = 0;
+  my $lines = 0;
+  foreach my $k (sort { GetEntry($s, $b) <=> GetEntry($s, $a) || $a cmp $b }
+                 keys(%{$cumulative})) {
+    my $f = GetEntry($flat, $k);
+    my $c = GetEntry($cumulative, $k);
+    $running_sum += $f;
+
+    my $sym = $k;
+    if (exists($symbols->{$k})) {
+      $sym = $symbols->{$k}->[0] . " " . $symbols->{$k}->[1];
+      if ($main::opt_addresses) {
+        $sym = $k . " " . $sym;
+      }
+    }
+
+    if ($f != 0 || $c != 0) {
+      printf("%8s %6s %6s %8s %6s %s\n",
+             Unparse($f),
+             Percent($f, $total),
+             Percent($running_sum, $total),
+             Unparse($c),
+             Percent($c, $total),
+             $sym);
+    }
+    $lines++;
+    last if ($line_limit >= 0 && $lines >= $line_limit);
+  }
+}
+
+# Callgrind format has a compression for repeated function and file
+# names.  You show the name the first time, and just use its number
+# subsequently.  This can cut down the file to about a third or a
+# quarter of its uncompressed size.  $key and $val are the key/value
+# pair that would normally be printed by callgrind; $map is a map from
+# value to number.
+sub CompressedCGName {
+  my($key, $val, $map) = @_;
+  my $idx = $map->{$val};
+  # For very short keys, providing an index hurts rather than helps.
+  if (length($val) <= 3) {
+    return "$key=$val\n";
+  } elsif (defined($idx)) {
+    return "$key=($idx)\n";
+  } else {
+    # scalar(keys $map) gives the number of items in the map.
+    $idx = scalar(keys(%{$map})) + 1;
+    $map->{$val} = $idx;
+    return "$key=($idx) $val\n";
+  }
+}
+
+# Print the call graph in a way that's suiteable for callgrind.
+sub PrintCallgrind {
+  my $calls = shift;
+  my $filename;
+  my %filename_to_index_map;
+  my %fnname_to_index_map;
+
+  if ($main::opt_interactive) {
+    $filename = shift;
+    print STDERR "Writing callgrind file to '$filename'.\n"
+  } else {
+    $filename = "&STDOUT";
+  }
+  open(CG, ">$filename");
+  print CG ("events: Hits\n\n");
+  foreach my $call ( map { $_->[0] }
+                     sort { $a->[1] cmp $b ->[1] ||
+                            $a->[2] <=> $b->[2] }
+                     map { /([^:]+):(\d+):([^ ]+)( -> ([^:]+):(\d+):(.+))?/;
+                           [$_, $1, $2] }
+                     keys %$calls ) {
+    my $count = int($calls->{$call});
+    $call =~ /([^:]+):(\d+):([^ ]+)( -> ([^:]+):(\d+):(.+))?/;
+    my ( $caller_file, $caller_line, $caller_function,
+         $callee_file, $callee_line, $callee_function ) =
+       ( $1, $2, $3, $5, $6, $7 );
+
+    # TODO(csilvers): for better compression, collect all the
+    # caller/callee_files and functions first, before printing
+    # anything, and only compress those referenced more than once.
+    print CG CompressedCGName("fl", $caller_file, \%filename_to_index_map);
+    print CG CompressedCGName("fn", $caller_function, \%fnname_to_index_map);
+    if (defined $6) {
+      print CG CompressedCGName("cfl", $callee_file, \%filename_to_index_map);
+      print CG CompressedCGName("cfn", $callee_function, \%fnname_to_index_map);
+      print CG ("calls=$count $callee_line\n");
+    }
+    print CG ("$caller_line $count\n\n");
+  }
+}
+
+# Print disassembly for all all routines that match $main::opt_disasm
+sub PrintDisassembly {
+  my $libs = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $disasm_opts = shift;
+
+  my $total = TotalProfile($flat);
+
+  foreach my $lib (@{$libs}) {
+    my $symbol_table = GetProcedureBoundaries($lib->[0], $disasm_opts);
+    my $offset = AddressSub($lib->[1], $lib->[3]);
+    foreach my $routine (sort ByName keys(%{$symbol_table})) {
+      my $start_addr = $symbol_table->{$routine}->[0];
+      my $end_addr = $symbol_table->{$routine}->[1];
+      # See if there are any samples in this routine
+      my $length = hex(AddressSub($end_addr, $start_addr));
+      my $addr = AddressAdd($start_addr, $offset);
+      for (my $i = 0; $i < $length; $i++) {
+        if (defined($cumulative->{$addr})) {
+          PrintDisassembledFunction($lib->[0], $offset,
+                                    $routine, $flat, $cumulative,
+                                    $start_addr, $end_addr, $total);
+          last;
+        }
+        $addr = AddressInc($addr);
+      }
+    }
+  }
+}
+
+# Return reference to array of tuples of the form:
+#       [start_address, filename, linenumber, instruction, limit_address]
+# E.g.,
+#       ["0x806c43d", "/foo/bar.cc", 131, "ret", "0x806c440"]
+sub Disassemble {
+  my $prog = shift;
+  my $offset = shift;
+  my $start_addr = shift;
+  my $end_addr = shift;
+
+  my $objdump = $obj_tool_map{"objdump"};
+  my $cmd = ShellEscape($objdump, "-C", "-d", "-l", "--no-show-raw-insn",
+                        "--start-address=0x$start_addr",
+                        "--stop-address=0x$end_addr", $prog);
+  open(OBJDUMP, "$cmd |") || error("$cmd: $!\n");
+  my @result = ();
+  my $filename = "";
+  my $linenumber = -1;
+  my $last = ["", "", "", ""];
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    chop;
+    if (m|\s*([^:\s]+):(\d+)\s*$|) {
+      # Location line of the form:
+      #   :
+      $filename = $1;
+      $linenumber = $2;
+    } elsif (m/^ +([0-9a-f]+):\s*(.*)/) {
+      # Disassembly line -- zero-extend address to full length
+      my $addr = HexExtend($1);
+      my $k = AddressAdd($addr, $offset);
+      $last->[4] = $k;   # Store ending address for previous instruction
+      $last = [$k, $filename, $linenumber, $2, $end_addr];
+      push(@result, $last);
+    }
+  }
+  close(OBJDUMP);
+  return @result;
+}
+
+# The input file should contain lines of the form /proc/maps-like
+# output (same format as expected from the profiles) or that looks
+# like hex addresses (like "0xDEADBEEF").  We will parse all
+# /proc/maps output, and for all the hex addresses, we will output
+# "short" symbol names, one per line, in the same order as the input.
+sub PrintSymbols {
+  my $maps_and_symbols_file = shift;
+
+  # ParseLibraries expects pcs to be in a set.  Fine by us...
+  my @pclist = ();   # pcs in sorted order
+  my $pcs = {};
+  my $map = "";
+  foreach my $line (<$maps_and_symbols_file>) {
+    $line =~ s/\r//g;    # turn windows-looking lines into unix-looking lines
+    if ($line =~ /\b(0x[0-9a-f]+)\b/i) {
+      push(@pclist, HexExtend($1));
+      $pcs->{$pclist[-1]} = 1;
+    } else {
+      $map .= $line;
+    }
+  }
+
+  my $libs = ParseLibraries($main::prog, $map, $pcs);
+  my $symbols = ExtractSymbols($libs, $pcs);
+
+  foreach my $pc (@pclist) {
+    # ->[0] is the shortname, ->[2] is the full name
+    print(($symbols->{$pc}->[0] || "??") . "\n");
+  }
+}
+
+
+# For sorting functions by name
+sub ByName {
+  return ShortFunctionName($a) cmp ShortFunctionName($b);
+}
+
+# Print source-listing for all all routines that match $list_opts
+sub PrintListing {
+  my $total = shift;
+  my $libs = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $list_opts = shift;
+  my $html = shift;
+
+  my $output = \*STDOUT;
+  my $fname = "";
+
+  if ($html) {
+    # Arrange to write the output to a temporary file
+    $fname = TempName($main::next_tmpfile, "html");
+    $main::next_tmpfile++;
+    if (!open(TEMP, ">$fname")) {
+      print STDERR "$fname: $!\n";
+      return;
+    }
+    $output = \*TEMP;
+    print $output HtmlListingHeader();
+    printf $output ("
%s
Total: %s %s
\n",
+                    $main::prog, Unparse($total), Units());
+  }
+
+  my $listed = 0;
+  foreach my $lib (@{$libs}) {
+    my $symbol_table = GetProcedureBoundaries($lib->[0], $list_opts);
+    my $offset = AddressSub($lib->[1], $lib->[3]);
+    foreach my $routine (sort ByName keys(%{$symbol_table})) {
+      # Print if there are any samples in this routine
+      my $start_addr = $symbol_table->{$routine}->[0];
+      my $end_addr = $symbol_table->{$routine}->[1];
+      my $length = hex(AddressSub($end_addr, $start_addr));
+      my $addr = AddressAdd($start_addr, $offset);
+      for (my $i = 0; $i < $length; $i++) {
+        if (defined($cumulative->{$addr})) {
+          $listed += PrintSource(
+            $lib->[0], $offset,
+            $routine, $flat, $cumulative,
+            $start_addr, $end_addr,
+            $html,
+            $output);
+          last;
+        }
+        $addr = AddressInc($addr);
+      }
+    }
+  }
+
+  if ($html) {
+    if ($listed > 0) {
+      print $output HtmlListingFooter();
+      close($output);
+      RunWeb($fname);
+    } else {
+      close($output);
+      unlink($fname);
+    }
+  }
+}
+
+sub HtmlListingHeader {
+  return <<'EOF';
+
+
+
+Pprof listing
+
+
+
+
+EOF
+}
+
+sub HtmlListingFooter {
+  return <<'EOF';
+
+
+EOF
+}
+
+sub HtmlEscape {
+  my $text = shift;
+  $text =~ s/&/&/g;
+  $text =~ s//>/g;
+  return $text;
+}
+
+# Returns the indentation of the line, if it has any non-whitespace
+# characters.  Otherwise, returns -1.
+sub Indentation {
+  my $line = shift;
+  if (m/^(\s*)\S/) {
+    return length($1);
+  } else {
+    return -1;
+  }
+}
+
+# If the symbol table contains inlining info, Disassemble() may tag an
+# instruction with a location inside an inlined function.  But for
+# source listings, we prefer to use the location in the function we
+# are listing.  So use MapToSymbols() to fetch full location
+# information for each instruction and then pick out the first
+# location from a location list (location list contains callers before
+# callees in case of inlining).
+#
+# After this routine has run, each entry in $instructions contains:
+#   [0] start address
+#   [1] filename for function we are listing
+#   [2] line number for function we are listing
+#   [3] disassembly
+#   [4] limit address
+#   [5] most specific filename (may be different from [1] due to inlining)
+#   [6] most specific line number (may be different from [2] due to inlining)
+sub GetTopLevelLineNumbers {
+  my ($lib, $offset, $instructions) = @_;
+  my $pcs = [];
+  for (my $i = 0; $i <= $#{$instructions}; $i++) {
+    push(@{$pcs}, $instructions->[$i]->[0]);
+  }
+  my $symbols = {};
+  MapToSymbols($lib, $offset, $pcs, $symbols);
+  for (my $i = 0; $i <= $#{$instructions}; $i++) {
+    my $e = $instructions->[$i];
+    push(@{$e}, $e->[1]);
+    push(@{$e}, $e->[2]);
+    my $addr = $e->[0];
+    my $sym = $symbols->{$addr};
+    if (defined($sym)) {
+      if ($#{$sym} >= 2 && $sym->[1] =~ m/^(.*):(\d+)$/) {
+        $e->[1] = $1;  # File name
+        $e->[2] = $2;  # Line number
+      }
+    }
+  }
+}
+
+# Print source-listing for one routine
+sub PrintSource {
+  my $prog = shift;
+  my $offset = shift;
+  my $routine = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $start_addr = shift;
+  my $end_addr = shift;
+  my $html = shift;
+  my $output = shift;
+
+  # Disassemble all instructions (just to get line numbers)
+  my @instructions = Disassemble($prog, $offset, $start_addr, $end_addr);
+  GetTopLevelLineNumbers($prog, $offset, \@instructions);
+
+  # Hack 1: assume that the first source file encountered in the
+  # disassembly contains the routine
+  my $filename = undef;
+  for (my $i = 0; $i <= $#instructions; $i++) {
+    if ($instructions[$i]->[2] >= 0) {
+      $filename = $instructions[$i]->[1];
+      last;
+    }
+  }
+  if (!defined($filename)) {
+    print STDERR "no filename found in $routine\n";
+    return 0;
+  }
+
+  # Hack 2: assume that the largest line number from $filename is the
+  # end of the procedure.  This is typically safe since if P1 contains
+  # an inlined call to P2, then P2 usually occurs earlier in the
+  # source file.  If this does not work, we might have to compute a
+  # density profile or just print all regions we find.
+  my $lastline = 0;
+  for (my $i = 0; $i <= $#instructions; $i++) {
+    my $f = $instructions[$i]->[1];
+    my $l = $instructions[$i]->[2];
+    if (($f eq $filename) && ($l > $lastline)) {
+      $lastline = $l;
+    }
+  }
+
+  # Hack 3: assume the first source location from "filename" is the start of
+  # the source code.
+  my $firstline = 1;
+  for (my $i = 0; $i <= $#instructions; $i++) {
+    if ($instructions[$i]->[1] eq $filename) {
+      $firstline = $instructions[$i]->[2];
+      last;
+    }
+  }
+
+  # Hack 4: Extend last line forward until its indentation is less than
+  # the indentation we saw on $firstline
+  my $oldlastline = $lastline;
+  {
+    if (!open(FILE, "<$filename")) {
+      print STDERR "$filename: $!\n";
+      return 0;
+    }
+    my $l = 0;
+    my $first_indentation = -1;
+    while () {
+      s/\r//g;         # turn windows-looking lines into unix-looking lines
+      $l++;
+      my $indent = Indentation($_);
+      if ($l >= $firstline) {
+        if ($first_indentation < 0 && $indent >= 0) {
+          $first_indentation = $indent;
+          last if ($first_indentation == 0);
+        }
+      }
+      if ($l >= $lastline && $indent >= 0) {
+        if ($indent >= $first_indentation) {
+          $lastline = $l+1;
+        } else {
+          last;
+        }
+      }
+    }
+    close(FILE);
+  }
+
+  # Assign all samples to the range $firstline,$lastline,
+  # Hack 4: If an instruction does not occur in the range, its samples
+  # are moved to the next instruction that occurs in the range.
+  my $samples1 = {};        # Map from line number to flat count
+  my $samples2 = {};        # Map from line number to cumulative count
+  my $running1 = 0;         # Unassigned flat counts
+  my $running2 = 0;         # Unassigned cumulative counts
+  my $total1 = 0;           # Total flat counts
+  my $total2 = 0;           # Total cumulative counts
+  my %disasm = ();          # Map from line number to disassembly
+  my $running_disasm = "";  # Unassigned disassembly
+  my $skip_marker = "---\n";
+  if ($html) {
+    $skip_marker = "";
+    for (my $l = $firstline; $l <= $lastline; $l++) {
+      $disasm{$l} = "";
+    }
+  }
+  my $last_dis_filename = '';
+  my $last_dis_linenum = -1;
+  my $last_touched_line = -1;  # To detect gaps in disassembly for a line
+  foreach my $e (@instructions) {
+    # Add up counts for all address that fall inside this instruction
+    my $c1 = 0;
+    my $c2 = 0;
+    for (my $a = $e->[0]; $a lt $e->[4]; $a = AddressInc($a)) {
+      $c1 += GetEntry($flat, $a);
+      $c2 += GetEntry($cumulative, $a);
+    }
+
+    if ($html) {
+      my $dis = sprintf("      %6s %6s \t\t%8s: %s ",
+                        HtmlPrintNumber($c1),
+                        HtmlPrintNumber($c2),
+                        UnparseAddress($offset, $e->[0]),
+                        CleanDisassembly($e->[3]));
+      
+      # Append the most specific source line associated with this instruction
+      if (length($dis) < 80) { $dis .= (' ' x (80 - length($dis))) };
+      $dis = HtmlEscape($dis);
+      my $f = $e->[5];
+      my $l = $e->[6];
+      if ($f ne $last_dis_filename) {
+        $dis .= sprintf("%s:%d", 
+                        HtmlEscape(CleanFileName($f)), $l);
+      } elsif ($l ne $last_dis_linenum) {
+        # De-emphasize the unchanged file name portion
+        $dis .= sprintf("%s" .
+                        ":%d", 
+                        HtmlEscape(CleanFileName($f)), $l);
+      } else {
+        # De-emphasize the entire location
+        $dis .= sprintf("%s:%d", 
+                        HtmlEscape(CleanFileName($f)), $l);
+      }
+      $last_dis_filename = $f;
+      $last_dis_linenum = $l;
+      $running_disasm .= $dis;
+      $running_disasm .= "\n";
+    }
+
+    $running1 += $c1;
+    $running2 += $c2;
+    $total1 += $c1;
+    $total2 += $c2;
+    my $file = $e->[1];
+    my $line = $e->[2];
+    if (($file eq $filename) &&
+        ($line >= $firstline) &&
+        ($line <= $lastline)) {
+      # Assign all accumulated samples to this line
+      AddEntry($samples1, $line, $running1);
+      AddEntry($samples2, $line, $running2);
+      $running1 = 0;
+      $running2 = 0;
+      if ($html) {
+        if ($line != $last_touched_line && $disasm{$line} ne '') {
+          $disasm{$line} .= "\n";
+        }
+        $disasm{$line} .= $running_disasm;
+        $running_disasm = '';
+        $last_touched_line = $line;
+      }
+    }
+  }
+
+  # Assign any leftover samples to $lastline
+  AddEntry($samples1, $lastline, $running1);
+  AddEntry($samples2, $lastline, $running2);
+  if ($html) {
+    if ($lastline != $last_touched_line && $disasm{$lastline} ne '') {
+      $disasm{$lastline} .= "\n";
+    }
+    $disasm{$lastline} .= $running_disasm;
+  }
+
+  if ($html) {
+    printf $output (
+      "
%s
%s\n
\n" .
+      "Total:%6s %6s (flat / cumulative %s)\n",
+      HtmlEscape(ShortFunctionName($routine)),
+      HtmlEscape(CleanFileName($filename)),
+      Unparse($total1),
+      Unparse($total2),
+      Units());
+  } else {
+    printf $output (
+      "ROUTINE ====================== %s in %s\n" .
+      "%6s %6s Total %s (flat / cumulative)\n",
+      ShortFunctionName($routine),
+      CleanFileName($filename),
+      Unparse($total1),
+      Unparse($total2),
+      Units());
+  }
+  if (!open(FILE, "<$filename")) {
+    print STDERR "$filename: $!\n";
+    return 0;
+  }
+  my $l = 0;
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    $l++;
+    if ($l >= $firstline - 5 &&
+        (($l <= $oldlastline + 5) || ($l <= $lastline))) {
+      chop;
+      my $text = $_;
+      if ($l == $firstline) { print $output $skip_marker; }
+      my $n1 = GetEntry($samples1, $l);
+      my $n2 = GetEntry($samples2, $l);
+      if ($html) {
+        # Emit a span that has one of the following classes:
+        #    livesrc -- has samples
+        #    deadsrc -- has disassembly, but with no samples
+        #    nop     -- has no matching disasembly
+        # Also emit an optional span containing disassembly.
+        my $dis = $disasm{$l};
+        my $asm = "";
+        if (defined($dis) && $dis ne '') {
+          $asm = "" . $dis . "";
+        }
+        my $source_class = (($n1 + $n2 > 0) 
+                            ? "livesrc" 
+                            : (($asm ne "") ? "deadsrc" : "nop"));
+        printf $output (
+          "%5d " .
+          "%6s %6s %s%s\n",
+          $l, $source_class,
+          HtmlPrintNumber($n1),
+          HtmlPrintNumber($n2),
+          HtmlEscape($text),
+          $asm);
+      } else {
+        printf $output(
+          "%6s %6s %4d: %s\n",
+          UnparseAlt($n1),
+          UnparseAlt($n2),
+          $l,
+          $text);
+      }
+      if ($l == $lastline)  { print $output $skip_marker; }
+    };
+  }
+  close(FILE);
+  if ($html) {
+    print $output "
\n";
+  }
+  return 1;
+}
+
+# Return the source line for the specified file/linenumber.
+# Returns undef if not found.
+sub SourceLine {
+  my $file = shift;
+  my $line = shift;
+
+  # Look in cache
+  if (!defined($main::source_cache{$file})) {
+    if (100 < scalar keys(%main::source_cache)) {
+      # Clear the cache when it gets too big
+      $main::source_cache = ();
+    }
+
+    # Read all lines from the file
+    if (!open(FILE, "<$file")) {
+      print STDERR "$file: $!\n";
+      $main::source_cache{$file} = [];  # Cache the negative result
+      return undef;
+    }
+    my $lines = [];
+    push(@{$lines}, "");        # So we can use 1-based line numbers as indices
+    while () {
+      push(@{$lines}, $_);
+    }
+    close(FILE);
+
+    # Save the lines in the cache
+    $main::source_cache{$file} = $lines;
+  }
+
+  my $lines = $main::source_cache{$file};
+  if (($line < 0) || ($line > $#{$lines})) {
+    return undef;
+  } else {
+    return $lines->[$line];
+  }
+}
+
+# Print disassembly for one routine with interspersed source if available
+sub PrintDisassembledFunction {
+  my $prog = shift;
+  my $offset = shift;
+  my $routine = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $start_addr = shift;
+  my $end_addr = shift;
+  my $total = shift;
+
+  # Disassemble all instructions
+  my @instructions = Disassemble($prog, $offset, $start_addr, $end_addr);
+
+  # Make array of counts per instruction
+  my @flat_count = ();
+  my @cum_count = ();
+  my $flat_total = 0;
+  my $cum_total = 0;
+  foreach my $e (@instructions) {
+    # Add up counts for all address that fall inside this instruction
+    my $c1 = 0;
+    my $c2 = 0;
+    for (my $a = $e->[0]; $a lt $e->[4]; $a = AddressInc($a)) {
+      $c1 += GetEntry($flat, $a);
+      $c2 += GetEntry($cumulative, $a);
+    }
+    push(@flat_count, $c1);
+    push(@cum_count, $c2);
+    $flat_total += $c1;
+    $cum_total += $c2;
+  }
+
+  # Print header with total counts
+  printf("ROUTINE ====================== %s\n" .
+         "%6s %6s %s (flat, cumulative) %.1f%% of total\n",
+         ShortFunctionName($routine),
+         Unparse($flat_total),
+         Unparse($cum_total),
+         Units(),
+         ($cum_total * 100.0) / $total);
+
+  # Process instructions in order
+  my $current_file = "";
+  for (my $i = 0; $i <= $#instructions; ) {
+    my $e = $instructions[$i];
+
+    # Print the new file name whenever we switch files
+    if ($e->[1] ne $current_file) {
+      $current_file = $e->[1];
+      my $fname = $current_file;
+      $fname =~ s|^\./||;   # Trim leading "./"
+
+      # Shorten long file names
+      if (length($fname) >= 58) {
+        $fname = "..." . substr($fname, -55);
+      }
+      printf("-------------------- %s\n", $fname);
+    }
+
+    # TODO: Compute range of lines to print together to deal with
+    # small reorderings.
+    my $first_line = $e->[2];
+    my $last_line = $first_line;
+    my %flat_sum = ();
+    my %cum_sum = ();
+    for (my $l = $first_line; $l <= $last_line; $l++) {
+      $flat_sum{$l} = 0;
+      $cum_sum{$l} = 0;
+    }
+
+    # Find run of instructions for this range of source lines
+    my $first_inst = $i;
+    while (($i <= $#instructions) &&
+           ($instructions[$i]->[2] >= $first_line) &&
+           ($instructions[$i]->[2] <= $last_line)) {
+      $e = $instructions[$i];
+      $flat_sum{$e->[2]} += $flat_count[$i];
+      $cum_sum{$e->[2]} += $cum_count[$i];
+      $i++;
+    }
+    my $last_inst = $i - 1;
+
+    # Print source lines
+    for (my $l = $first_line; $l <= $last_line; $l++) {
+      my $line = SourceLine($current_file, $l);
+      if (!defined($line)) {
+        $line = "?\n";
+        next;
+      } else {
+        $line =~ s/^\s+//;
+      }
+      printf("%6s %6s %5d: %s",
+             UnparseAlt($flat_sum{$l}),
+             UnparseAlt($cum_sum{$l}),
+             $l,
+             $line);
+    }
+
+    # Print disassembly
+    for (my $x = $first_inst; $x <= $last_inst; $x++) {
+      my $e = $instructions[$x];
+      printf("%6s %6s    %8s: %6s\n",
+             UnparseAlt($flat_count[$x]),
+             UnparseAlt($cum_count[$x]),
+             UnparseAddress($offset, $e->[0]),
+             CleanDisassembly($e->[3]));
+    }
+  }
+}
+
+# Print DOT graph
+sub PrintDot {
+  my $prog = shift;
+  my $symbols = shift;
+  my $raw = shift;
+  my $flat = shift;
+  my $cumulative = shift;
+  my $overall_total = shift;
+
+  # Get total
+  my $local_total = TotalProfile($flat);
+  my $nodelimit = int($main::opt_nodefraction * $local_total);
+  my $edgelimit = int($main::opt_edgefraction * $local_total);
+  my $nodecount = $main::opt_nodecount;
+
+  # Find nodes to include
+  my @list = (sort { abs(GetEntry($cumulative, $b)) <=>
+                     abs(GetEntry($cumulative, $a))
+                     || $a cmp $b }
+              keys(%{$cumulative}));
+  my $last = $nodecount - 1;
+  if ($last > $#list) {
+    $last = $#list;
+  }
+  while (($last >= 0) &&
+         (abs(GetEntry($cumulative, $list[$last])) <= $nodelimit)) {
+    $last--;
+  }
+  if ($last < 0) {
+    print STDERR "No nodes to print\n";
+    return 0;
+  }
+
+  if ($nodelimit > 0 || $edgelimit > 0) {
+    printf STDERR ("Dropping nodes with <= %s %s; edges with <= %s abs(%s)\n",
+                   Unparse($nodelimit), Units(),
+                   Unparse($edgelimit), Units());
+  }
+
+  # Open DOT output file
+  my $output;
+  my $escaped_dot = ShellEscape(@DOT);
+  my $escaped_ps2pdf = ShellEscape(@PS2PDF);
+  if ($main::opt_gv) {
+    my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "ps"));
+    $output = "| $escaped_dot -Tps2 >$escaped_outfile";
+  } elsif ($main::opt_evince) {
+    my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "pdf"));
+    $output = "| $escaped_dot -Tps2 | $escaped_ps2pdf - $escaped_outfile";
+  } elsif ($main::opt_ps) {
+    $output = "| $escaped_dot -Tps2";
+  } elsif ($main::opt_pdf) {
+    $output = "| $escaped_dot -Tps2 | $escaped_ps2pdf - -";
+  } elsif ($main::opt_web || $main::opt_svg) {
+    # We need to post-process the SVG, so write to a temporary file always.
+    my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "svg"));
+    $output = "| $escaped_dot -Tsvg >$escaped_outfile";
+  } elsif ($main::opt_gif) {
+    $output = "| $escaped_dot -Tgif";
+  } else {
+    $output = ">&STDOUT";
+  }
+  open(DOT, $output) || error("$output: $!\n");
+
+  # Title
+  printf DOT ("digraph \"%s; %s %s\" {\n",
+              $prog,
+              Unparse($overall_total),
+              Units());
+  if ($main::opt_pdf) {
+    # The output is more printable if we set the page size for dot.
+    printf DOT ("size=\"8,11\"\n");
+  }
+  printf DOT ("node [width=0.375,height=0.25];\n");
+
+  # Print legend
+  printf DOT ("Legend [shape=box,fontsize=24,shape=plaintext," .
+              "label=\"%s\\l%s\\l%s\\l%s\\l%s\\l\"];\n",
+              $prog,
+              sprintf("Total %s: %s", Units(), Unparse($overall_total)),
+              sprintf("Focusing on: %s", Unparse($local_total)),
+              sprintf("Dropped nodes with <= %s abs(%s)",
+                      Unparse($nodelimit), Units()),
+              sprintf("Dropped edges with <= %s %s",
+                      Unparse($edgelimit), Units())
+              );
+
+  # Print nodes
+  my %node = ();
+  my $nextnode = 1;
+  foreach my $a (@list[0..$last]) {
+    # Pick font size
+    my $f = GetEntry($flat, $a);
+    my $c = GetEntry($cumulative, $a);
+
+    my $fs = 8;
+    if ($local_total > 0) {
+      $fs = 8 + (50.0 * sqrt(abs($f * 1.0 / $local_total)));
+    }
+
+    $node{$a} = $nextnode++;
+    my $sym = $a;
+    $sym =~ s/\s+/\\n/g;
+    $sym =~ s/::/\\n/g;
+
+    # Extra cumulative info to print for non-leaves
+    my $extra = "";
+    if ($f != $c) {
+      $extra = sprintf("\\rof %s (%s)",
+                       Unparse($c),
+                       Percent($c, $local_total));
+    }
+    my $style = "";
+    if ($main::opt_heapcheck) {
+      if ($f > 0) {
+        # make leak-causing nodes more visible (add a background)
+        $style = ",style=filled,fillcolor=gray"
+      } elsif ($f < 0) {
+        # make anti-leak-causing nodes (which almost never occur)
+        # stand out as well (triple border)
+        $style = ",peripheries=3"
+      }
+    }
+
+    printf DOT ("N%d [label=\"%s\\n%s (%s)%s\\r" .
+                "\",shape=box,fontsize=%.1f%s];\n",
+                $node{$a},
+                $sym,
+                Unparse($f),
+                Percent($f, $local_total),
+                $extra,
+                $fs,
+                $style,
+               );
+  }
+
+  # Get edges and counts per edge
+  my %edge = ();
+  my $n;
+  my $fullname_to_shortname_map = {};
+  FillFullnameToShortnameMap($symbols, $fullname_to_shortname_map);
+  foreach my $k (keys(%{$raw})) {
+    # TODO: omit low %age edges
+    $n = $raw->{$k};
+    my @translated = TranslateStack($symbols, $fullname_to_shortname_map, $k);
+    for (my $i = 1; $i <= $#translated; $i++) {
+      my $src = $translated[$i];
+      my $dst = $translated[$i-1];
+      #next if ($src eq $dst);  # Avoid self-edges?
+      if (exists($node{$src}) && exists($node{$dst})) {
+        my $edge_label = "$src\001$dst";
+        if (!exists($edge{$edge_label})) {
+          $edge{$edge_label} = 0;
+        }
+        $edge{$edge_label} += $n;
+      }
+    }
+  }
+
+  # Print edges (process in order of decreasing counts)
+  my %indegree = ();   # Number of incoming edges added per node so far
+  my %outdegree = ();  # Number of outgoing edges added per node so far
+  foreach my $e (sort { $edge{$b} <=> $edge{$a} } keys(%edge)) {
+    my @x = split(/\001/, $e);
+    $n = $edge{$e};
+
+    # Initialize degree of kept incoming and outgoing edges if necessary
+    my $src = $x[0];
+    my $dst = $x[1];
+    if (!exists($outdegree{$src})) { $outdegree{$src} = 0; }
+    if (!exists($indegree{$dst})) { $indegree{$dst} = 0; }
+
+    my $keep;
+    if ($indegree{$dst} == 0) {
+      # Keep edge if needed for reachability
+      $keep = 1;
+    } elsif (abs($n) <= $edgelimit) {
+      # Drop if we are below --edgefraction
+      $keep = 0;
+    } elsif ($outdegree{$src} >= $main::opt_maxdegree ||
+             $indegree{$dst} >= $main::opt_maxdegree) {
+      # Keep limited number of in/out edges per node
+      $keep = 0;
+    } else {
+      $keep = 1;
+    }
+
+    if ($keep) {
+      $outdegree{$src}++;
+      $indegree{$dst}++;
+
+      # Compute line width based on edge count
+      my $fraction = abs($local_total ? (3 * ($n / $local_total)) : 0);
+      if ($fraction > 1) { $fraction = 1; }
+      my $w = $fraction * 2;
+      if ($w < 1 && ($main::opt_web || $main::opt_svg)) {
+        # SVG output treats line widths < 1 poorly.
+        $w = 1;
+      }
+
+      # Dot sometimes segfaults if given edge weights that are too large, so
+      # we cap the weights at a large value
+      my $edgeweight = abs($n) ** 0.7;
+      if ($edgeweight > 100000) { $edgeweight = 100000; }
+      $edgeweight = int($edgeweight);
+
+      my $style = sprintf("setlinewidth(%f)", $w);
+      if ($x[1] =~ m/\(inline\)/) {
+        $style .= ",dashed";
+      }
+
+      # Use a slightly squashed function of the edge count as the weight
+      printf DOT ("N%s -> N%s [label=%s, weight=%d, style=\"%s\"];\n",
+                  $node{$x[0]},
+                  $node{$x[1]},
+                  Unparse($n),
+                  $edgeweight,
+                  $style);
+    }
+  }
+
+  print DOT ("}\n");
+  close(DOT);
+
+  if ($main::opt_web || $main::opt_svg) {
+    # Rewrite SVG to be more usable inside web browser.
+    RewriteSvg(TempName($main::next_tmpfile, "svg"));
+  }
+
+  return 1;
+}
+
+sub RewriteSvg {
+  my $svgfile = shift;
+
+  open(SVG, $svgfile) || die "open temp svg: $!";
+  my @svg = ;
+  close(SVG);
+  unlink $svgfile;
+  my $svg = join('', @svg);
+
+  # Dot's SVG output is
+  #
+  #    
+  #    
+  #    ...
+  #    
+  #    
+  #
+  # Change it to
+  #
+  #    
+  #    $svg_javascript
+  #    
+  #    
+  #    ...
+  #    
+  #    
+  #    
+
+  # Fix width, height; drop viewBox.
+  $svg =~ s/(?s) above first 
+  my $svg_javascript = SvgJavascript();
+  my $viewport = "\n";
+  $svg =~ s/ above .
+  $svg =~ s/(.*)(<\/svg>)/$1<\/g>$2/;
+  $svg =~ s/$svgfile") || die "open $svgfile: $!";
+    print SVG $svg;
+    close(SVG);
+  }
+}
+
+sub SvgJavascript {
+  return <<'EOF';
+
+EOF
+}
+
+# Provides a map from fullname to shortname for cases where the
+# shortname is ambiguous.  The symlist has both the fullname and
+# shortname for all symbols, which is usually fine, but sometimes --
+# such as overloaded functions -- two different fullnames can map to
+# the same shortname.  In that case, we use the address of the
+# function to disambiguate the two.  This function fills in a map that
+# maps fullnames to modified shortnames in such cases.  If a fullname
+# is not present in the map, the 'normal' shortname provided by the
+# symlist is the appropriate one to use.
+sub FillFullnameToShortnameMap {
+  my $symbols = shift;
+  my $fullname_to_shortname_map = shift;
+  my $shortnames_seen_once = {};
+  my $shortnames_seen_more_than_once = {};
+
+  foreach my $symlist (values(%{$symbols})) {
+    # TODO(csilvers): deal with inlined symbols too.
+    my $shortname = $symlist->[0];
+    my $fullname = $symlist->[2];
+    if ($fullname !~ /<[0-9a-fA-F]+>$/) {  # fullname doesn't end in an address
+      next;       # the only collisions we care about are when addresses differ
+    }
+    if (defined($shortnames_seen_once->{$shortname}) &&
+        $shortnames_seen_once->{$shortname} ne $fullname) {
+      $shortnames_seen_more_than_once->{$shortname} = 1;
+    } else {
+      $shortnames_seen_once->{$shortname} = $fullname;
+    }
+  }
+
+  foreach my $symlist (values(%{$symbols})) {
+    my $shortname = $symlist->[0];
+    my $fullname = $symlist->[2];
+    # TODO(csilvers): take in a list of addresses we care about, and only
+    # store in the map if $symlist->[1] is in that list.  Saves space.
+    next if defined($fullname_to_shortname_map->{$fullname});
+    if (defined($shortnames_seen_more_than_once->{$shortname})) {
+      if ($fullname =~ /<0*([^>]*)>$/) {   # fullname has address at end of it
+        $fullname_to_shortname_map->{$fullname} = "$shortname\@$1";
+      }
+    }
+  }
+}
+
+# Return a small number that identifies the argument.
+# Multiple calls with the same argument will return the same number.
+# Calls with different arguments will return different numbers.
+sub ShortIdFor {
+  my $key = shift;
+  my $id = $main::uniqueid{$key};
+  if (!defined($id)) {
+    $id = keys(%main::uniqueid) + 1;
+    $main::uniqueid{$key} = $id;
+  }
+  return $id;
+}
+
+# Translate a stack of addresses into a stack of symbols
+sub TranslateStack {
+  my $symbols = shift;
+  my $fullname_to_shortname_map = shift;
+  my $k = shift;
+
+  my @addrs = split(/\n/, $k);
+  my @result = ();
+  for (my $i = 0; $i <= $#addrs; $i++) {
+    my $a = $addrs[$i];
+
+    # Skip large addresses since they sometimes show up as fake entries on RH9
+    if (length($a) > 8 && $a gt "7fffffffffffffff") {
+      next;
+    }
+
+    if ($main::opt_disasm || $main::opt_list) {
+      # We want just the address for the key
+      push(@result, $a);
+      next;
+    }
+
+    my $symlist = $symbols->{$a};
+    if (!defined($symlist)) {
+      $symlist = [$a, "", $a];
+    }
+
+    # We can have a sequence of symbols for a particular entry
+    # (more than one symbol in the case of inlining).  Callers
+    # come before callees in symlist, so walk backwards since
+    # the translated stack should contain callees before callers.
+    for (my $j = $#{$symlist}; $j >= 2; $j -= 3) {
+      my $func = $symlist->[$j-2];
+      my $fileline = $symlist->[$j-1];
+      my $fullfunc = $symlist->[$j];
+      if (defined($fullname_to_shortname_map->{$fullfunc})) {
+        $func = $fullname_to_shortname_map->{$fullfunc};
+      }
+      if ($j > 2) {
+        $func = "$func (inline)";
+      }
+
+      # Do not merge nodes corresponding to Callback::Run since that
+      # causes confusing cycles in dot display.  Instead, we synthesize
+      # a unique name for this frame per caller.
+      if ($func =~ m/Callback.*::Run$/) {
+        my $caller = ($i > 0) ? $addrs[$i-1] : 0;
+        $func = "Run#" . ShortIdFor($caller);
+      }
+
+      if ($main::opt_addresses) {
+        push(@result, "$a $func $fileline");
+      } elsif ($main::opt_lines) {
+        if ($func eq '??' && $fileline eq '??:0') {
+          push(@result, "$a");
+        } elsif (!$main::opt_show_addresses) {
+          push(@result, "$func $fileline");
+        } else {
+          push(@result, "$func $fileline ($a)");
+        }
+      } elsif ($main::opt_functions) {
+        if ($func eq '??') {
+          push(@result, "$a");
+        } elsif (!$main::opt_show_addresses) {
+          push(@result, $func);
+        } else {
+          push(@result, "$func ($a)");
+        }
+      } elsif ($main::opt_files) {
+        if ($fileline eq '??:0' || $fileline eq '') {
+          push(@result, "$a");
+        } else {
+          my $f = $fileline;
+          $f =~ s/:\d+$//;
+          push(@result, $f);
+        }
+      } else {
+        push(@result, $a);
+        last;  # Do not print inlined info
+      }
+    }
+  }
+
+  # print join(",", @addrs), " => ", join(",", @result), "\n";
+  return @result;
+}
+
+# Generate percent string for a number and a total
+sub Percent {
+  my $num = shift;
+  my $tot = shift;
+  if ($tot != 0) {
+    return sprintf("%.1f%%", $num * 100.0 / $tot);
+  } else {
+    return ($num == 0) ? "nan" : (($num > 0) ? "+inf" : "-inf");
+  }
+}
+
+# Generate pretty-printed form of number
+sub Unparse {
+  my $num = shift;
+  if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') {
+    if ($main::opt_inuse_objects || $main::opt_alloc_objects) {
+      return sprintf("%d", $num);
+    } else {
+      if ($main::opt_show_bytes) {
+        return sprintf("%d", $num);
+      } else {
+        return sprintf("%.1f", $num / 1048576.0);
+      }
+    }
+  } elsif ($main::profile_type eq 'contention' && !$main::opt_contentions) {
+    return sprintf("%.3f", $num / 1e9); # Convert nanoseconds to seconds
+  } else {
+    return sprintf("%d", $num);
+  }
+}
+
+# Alternate pretty-printed form: 0 maps to "."
+sub UnparseAlt {
+  my $num = shift;
+  if ($num == 0) {
+    return ".";
+  } else {
+    return Unparse($num);
+  }
+}
+
+# Alternate pretty-printed form: 0 maps to ""
+sub HtmlPrintNumber {
+  my $num = shift;
+  if ($num == 0) {
+    return "";
+  } else {
+    return Unparse($num);
+  }
+}
+
+# Return output units
+sub Units {
+  if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') {
+    if ($main::opt_inuse_objects || $main::opt_alloc_objects) {
+      return "objects";
+    } else {
+      if ($main::opt_show_bytes) {
+        return "B";
+      } else {
+        return "MB";
+      }
+    }
+  } elsif ($main::profile_type eq 'contention' && !$main::opt_contentions) {
+    return "seconds";
+  } else {
+    return "samples";
+  }
+}
+
+##### Profile manipulation code #####
+
+# Generate flattened profile:
+# If count is charged to stack [a,b,c,d], in generated profile,
+# it will be charged to [a]
+sub FlatProfile {
+  my $profile = shift;
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    if ($#addrs >= 0) {
+      AddEntry($result, $addrs[0], $count);
+    }
+  }
+  return $result;
+}
+
+# Generate cumulative profile:
+# If count is charged to stack [a,b,c,d], in generated profile,
+# it will be charged to [a], [b], [c], [d]
+sub CumulativeProfile {
+  my $profile = shift;
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    foreach my $a (@addrs) {
+      AddEntry($result, $a, $count);
+    }
+  }
+  return $result;
+}
+
+# If the second-youngest PC on the stack is always the same, returns
+# that pc.  Otherwise, returns undef.
+sub IsSecondPcAlwaysTheSame {
+  my $profile = shift;
+
+  my $second_pc = undef;
+  foreach my $k (keys(%{$profile})) {
+    my @addrs = split(/\n/, $k);
+    if ($#addrs < 1) {
+      return undef;
+    }
+    if (not defined $second_pc) {
+      $second_pc = $addrs[1];
+    } else {
+      if ($second_pc ne $addrs[1]) {
+        return undef;
+      }
+    }
+  }
+  return $second_pc;
+}
+
+sub ExtractSymbolLocationInlineStack {
+  my $symbols = shift;
+  my $address = shift;
+  my $stack = shift;
+  # 'addr2line' outputs "??:0" for unknown locations; we do the
+  # same to be consistent.
+  if (exists $symbols->{$address}) {
+    my @localinlinestack = @{$symbols->{$address}};
+    for (my $i = $#localinlinestack; $i > 0; $i-=3) {
+      my $file = $localinlinestack[$i-1];
+      my $fn = $localinlinestack[$i-2];
+      if ($file eq "?" || $file eq ":0") {
+        $file = "??:0";
+      }
+      my $suffix = "[inline]";
+      if ($i == 2) {
+        $suffix = "";
+      }
+      push (@$stack, $file.":".$fn.$suffix);
+    }
+  }
+  else {
+      push (@$stack, "??:0:unknown");
+  }
+}
+
+sub ExtractSymbolNameInlineStack {
+  my $symbols = shift;
+  my $address = shift;
+
+  my @stack = ();
+
+  if (exists $symbols->{$address}) {
+    my @localinlinestack = @{$symbols->{$address}};
+    for (my $i = $#localinlinestack; $i > 0; $i-=3) {
+      my $file = $localinlinestack[$i-1];
+      my $fn = $localinlinestack[$i-0];
+
+      if ($file eq "?" || $file eq ":0") {
+        $file = "??:0";
+      }
+      if ($fn eq '??') {
+        # If we can't get the symbol name, at least use the file information.
+        $fn = $file;
+      }
+      my $suffix = "[inline]";
+      if ($i == 2) {
+        $suffix = "";
+      }
+      push (@stack, $fn.$suffix);
+    }
+  }
+  else {
+    # If we can't get a symbol name, at least fill in the address.
+    push (@stack, $address);
+  }
+
+  return @stack;
+}
+
+sub ExtractSymbolLocation {
+  my $symbols = shift;
+  my $address = shift;
+  # 'addr2line' outputs "??:0" for unknown locations; we do the
+  # same to be consistent.
+  my $location = "??:0:unknown";
+  if (exists $symbols->{$address}) {
+    my $file = $symbols->{$address}->[1];
+    if ($file eq "?" || $file eq ":0") {
+      $file = "??:0"
+    }
+    $location = $file . ":" . $symbols->{$address}->[0];
+  }
+  return $location;
+}
+
+# Extracts a graph of calls.
+sub ExtractCalls {
+  my $symbols = shift;
+  my $profile = shift;
+  my $calls = {};
+  while( my ($stack_trace, $count) = each %$profile ) {
+    my @address = split(/\n/, $stack_trace);
+    my @stack = ();
+    ExtractSymbolLocationInlineStack($symbols, $address[0], \@stack);
+    for (my $i = 1; $i <= $#address; $i++) {
+      ExtractSymbolLocationInlineStack($symbols, $address[$i], \@stack);
+    }
+    AddEntry($calls, $stack[0], $count);
+    for (my $i = 1; $i < $#address; $i++) {
+      AddEntry($calls, "$stack[$i] -> $stack[$i-1]", $count);
+    }
+  }
+  return $calls;
+}
+
+sub PrintStacksForText {
+  my $symbols = shift;
+  my $profile = shift;
+
+  while (my ($stack_trace, $count) = each %$profile) {
+    my @address = split(/\n/, $stack_trace);
+    for (my $i = 0; $i <= $#address; $i++) {
+      $address[$i] = sprintf("(%s) %s", $address[$i], ExtractSymbolLocation($symbols, $address[$i]));
+    }
+    printf("%-8d %s\n\n", $count, join("\n         ", @address));
+  }
+}
+
+sub PrintCollapsedStacks {
+  my $symbols = shift;
+  my $profile = shift;
+
+  while (my ($stack_trace, $count) = each %$profile) {
+    my @address = split(/\n/, $stack_trace);
+    my @names = reverse ( map { ExtractSymbolNameInlineStack($symbols, $_) } @address );
+    printf("%s %d\n", join(";", @names), $count);
+  }
+}
+
+sub RemoveUninterestingFrames {
+  my $symbols = shift;
+  my $profile = shift;
+
+  # List of function names to skip
+  my %skip = ();
+  my $skip_regexp = 'NOMATCH';
+  if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') {
+    foreach my $name ('calloc',
+                      'cfree',
+                      'malloc',
+                      'free',
+                      'memalign',
+                      'posix_memalign',
+                      'pvalloc',
+                      'valloc',
+                      'realloc',
+                      'tc_calloc',
+                      'tc_cfree',
+                      'tc_malloc',
+                      'tc_free',
+                      'tc_memalign',
+                      'tc_posix_memalign',
+                      'tc_pvalloc',
+                      'tc_valloc',
+                      'tc_realloc',
+                      'tc_new',
+                      'tc_delete',
+                      'tc_newarray',
+                      'tc_deletearray',
+                      'tc_new_nothrow',
+                      'tc_newarray_nothrow',
+                      'do_malloc',
+                      '::do_malloc',   # new name -- got moved to an unnamed ns
+                      '::do_malloc_or_cpp_alloc',
+                      'DoSampledAllocation',
+                      'simple_alloc::allocate',
+                      '__malloc_alloc_template::allocate',
+                      '__builtin_delete',
+                      '__builtin_new',
+                      '__builtin_vec_delete',
+                      '__builtin_vec_new',
+                      'operator new',
+                      'operator new[]',
+                      # The entry to our memory-allocation routines on OS X
+                      'malloc_zone_malloc',
+                      'malloc_zone_calloc',
+                      'malloc_zone_valloc',
+                      'malloc_zone_realloc',
+                      'malloc_zone_memalign',
+                      'malloc_zone_free',
+                      # These mark the beginning/end of our custom sections
+                      '__start_google_malloc',
+                      '__stop_google_malloc',
+                      '__start_malloc_hook',
+                      '__stop_malloc_hook') {
+      $skip{$name} = 1;
+      $skip{"_" . $name} = 1;   # Mach (OS X) adds a _ prefix to everything
+    }
+    # TODO: Remove TCMalloc once everything has been
+    # moved into the tcmalloc:: namespace and we have flushed
+    # old code out of the system.
+    $skip_regexp = "TCMalloc|^tcmalloc::";
+  } elsif ($main::profile_type eq 'contention') {
+    foreach my $vname ('base::RecordLockProfileData',
+                       'base::SubmitMutexProfileData',
+                       'base::SubmitSpinLockProfileData',
+                       'Mutex::Unlock',
+                       'Mutex::UnlockSlow',
+                       'Mutex::ReaderUnlock',
+                       'MutexLock::~MutexLock',
+                       'SpinLock::Unlock',
+                       'SpinLock::SlowUnlock',
+                       'SpinLockHolder::~SpinLockHolder') {
+      $skip{$vname} = 1;
+    }
+  } elsif ($main::profile_type eq 'cpu' && !$main::opt_no_auto_signal_frames) {
+    # Drop signal handlers used for CPU profile collection
+    # TODO(dpeng): this should not be necessary; it's taken
+    # care of by the general 2nd-pc mechanism below.
+    foreach my $name ('ProfileData::Add',           # historical
+                      'ProfileData::prof_handler',  # historical
+                      'CpuProfiler::prof_handler',
+                      '__FRAME_END__',
+                      '__pthread_sighandler',
+                      '__restore') {
+      $skip{$name} = 1;
+    }
+  } else {
+    # Nothing skipped for unknown types
+  }
+
+  if ($main::profile_type eq 'cpu') {
+    # If all the second-youngest program counters are the same,
+    # this STRONGLY suggests that it is an artifact of measurement,
+    # i.e., stack frames pushed by the CPU profiler signal handler.
+    # Hence, we delete them.
+    # (The topmost PC is read from the signal structure, not from
+    # the stack, so it does not get involved.)
+    while (my $second_pc = IsSecondPcAlwaysTheSame($profile)) {
+      my $result = {};
+      my $func = '';
+      if (exists($symbols->{$second_pc})) {
+        $second_pc = $symbols->{$second_pc}->[0];
+      }
+      if ($main::opt_no_auto_signal_frames) {
+        print STDERR "All second stack frames are same: `$second_pc'.\nMight be stack trace capturing bug.\n";
+        last;
+      }
+      print STDERR "Removing $second_pc from all stack traces.\n";
+      foreach my $k (keys(%{$profile})) {
+        my $count = $profile->{$k};
+        my @addrs = split(/\n/, $k);
+        my $topaddr = POSIX::strtoul($addrs[0], 16);
+        splice @addrs, 1, 1;
+        if ($#addrs > 1) {
+          my $subtopaddr = POSIX::strtoul($addrs[1], 16);
+          if ($subtopaddr + 1 == $topaddr) {
+            splice @addrs, 1, 1;
+          }
+        }
+        my $reduced_path = join("\n", @addrs);
+        AddEntry($result, $reduced_path, $count);
+      }
+      $profile = $result;
+    }
+  }
+
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    my @path = ();
+    foreach my $a (@addrs) {
+      if (exists($symbols->{$a})) {
+        my $func = $symbols->{$a}->[0];
+        if ($skip{$func} || ($func =~ m/$skip_regexp/)) {
+          next;
+        }
+      }
+      push(@path, $a);
+    }
+    my $reduced_path = join("\n", @path);
+    AddEntry($result, $reduced_path, $count);
+  }
+  return $result;
+}
+
+# Reduce profile to granularity given by user
+sub ReduceProfile {
+  my $symbols = shift;
+  my $profile = shift;
+  my $result = {};
+  my $fullname_to_shortname_map = {};
+  FillFullnameToShortnameMap($symbols, $fullname_to_shortname_map);
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @translated = TranslateStack($symbols, $fullname_to_shortname_map, $k);
+    my @path = ();
+    my %seen = ();
+    $seen{''} = 1;      # So that empty keys are skipped
+    foreach my $e (@translated) {
+      # To avoid double-counting due to recursion, skip a stack-trace
+      # entry if it has already been seen
+      if (!$seen{$e}) {
+        $seen{$e} = 1;
+        push(@path, $e);
+      }
+    }
+    my $reduced_path = join("\n", @path);
+    AddEntry($result, $reduced_path, $count);
+  }
+  return $result;
+}
+
+# Does the specified symbol array match the regexp?
+sub SymbolMatches {
+  my $sym = shift;
+  my $re = shift;
+  if (defined($sym)) {
+    for (my $i = 0; $i < $#{$sym}; $i += 3) {
+      if ($sym->[$i] =~ m/$re/ || $sym->[$i+1] =~ m/$re/) {
+        return 1;
+      }
+    }
+  }
+  return 0;
+}
+
+# Focus only on paths involving specified regexps
+sub FocusProfile {
+  my $symbols = shift;
+  my $profile = shift;
+  my $focus = shift;
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    foreach my $a (@addrs) {
+      # Reply if it matches either the address/shortname/fileline
+      if (($a =~ m/$focus/) || SymbolMatches($symbols->{$a}, $focus)) {
+        AddEntry($result, $k, $count);
+        last;
+      }
+    }
+  }
+  return $result;
+}
+
+# Focus only on paths not involving specified regexps
+sub IgnoreProfile {
+  my $symbols = shift;
+  my $profile = shift;
+  my $ignore = shift;
+  my $result = {};
+  foreach my $k (keys(%{$profile})) {
+    my $count = $profile->{$k};
+    my @addrs = split(/\n/, $k);
+    my $matched = 0;
+    foreach my $a (@addrs) {
+      # Reply if it matches either the address/shortname/fileline
+      if (($a =~ m/$ignore/) || SymbolMatches($symbols->{$a}, $ignore)) {
+        $matched = 1;
+        last;
+      }
+    }
+    if (!$matched) {
+      AddEntry($result, $k, $count);
+    }
+  }
+  return $result;
+}
+
+# Get total count in profile
+sub TotalProfile {
+  my $profile = shift;
+  my $result = 0;
+  foreach my $k (keys(%{$profile})) {
+    $result += $profile->{$k};
+  }
+  return $result;
+}
+
+# Add A to B
+sub AddProfile {
+  my $A = shift;
+  my $B = shift;
+
+  my $R = {};
+  # add all keys in A
+  foreach my $k (keys(%{$A})) {
+    my $v = $A->{$k};
+    AddEntry($R, $k, $v);
+  }
+  # add all keys in B
+  foreach my $k (keys(%{$B})) {
+    my $v = $B->{$k};
+    AddEntry($R, $k, $v);
+  }
+  return $R;
+}
+
+# Merges symbol maps
+sub MergeSymbols {
+  my $A = shift;
+  my $B = shift;
+
+  my $R = {};
+  foreach my $k (keys(%{$A})) {
+    $R->{$k} = $A->{$k};
+  }
+  if (defined($B)) {
+    foreach my $k (keys(%{$B})) {
+      $R->{$k} = $B->{$k};
+    }
+  }
+  return $R;
+}
+
+
+# Add A to B
+sub AddPcs {
+  my $A = shift;
+  my $B = shift;
+
+  my $R = {};
+  # add all keys in A
+  foreach my $k (keys(%{$A})) {
+    $R->{$k} = 1
+  }
+  # add all keys in B
+  foreach my $k (keys(%{$B})) {
+    $R->{$k} = 1
+  }
+  return $R;
+}
+
+# Subtract B from A
+sub SubtractProfile {
+  my $A = shift;
+  my $B = shift;
+
+  my $R = {};
+  foreach my $k (keys(%{$A})) {
+    my $v = $A->{$k} - GetEntry($B, $k);
+    if ($v < 0 && $main::opt_drop_negative) {
+      $v = 0;
+    }
+    AddEntry($R, $k, $v);
+  }
+  if (!$main::opt_drop_negative) {
+    # Take care of when subtracted profile has more entries
+    foreach my $k (keys(%{$B})) {
+      if (!exists($A->{$k})) {
+        AddEntry($R, $k, 0 - $B->{$k});
+      }
+    }
+  }
+  return $R;
+}
+
+# Get entry from profile; zero if not present
+sub GetEntry {
+  my $profile = shift;
+  my $k = shift;
+  if (exists($profile->{$k})) {
+    return $profile->{$k};
+  } else {
+    return 0;
+  }
+}
+
+# Add entry to specified profile
+sub AddEntry {
+  my $profile = shift;
+  my $k = shift;
+  my $n = shift;
+  if (!exists($profile->{$k})) {
+    $profile->{$k} = 0;
+  }
+  $profile->{$k} += $n;
+}
+
+# Add a stack of entries to specified profile, and add them to the $pcs
+# list.
+sub AddEntries {
+  my $profile = shift;
+  my $pcs = shift;
+  my $stack = shift;
+  my $count = shift;
+  my @k = ();
+
+  foreach my $e (split(/\s+/, $stack)) {
+    my $pc = HexExtend($e);
+    $pcs->{$pc} = 1;
+    push @k, $pc;
+  }
+  AddEntry($profile, (join "\n", @k), $count);
+}
+
+##### Code to profile a server dynamically #####
+
+sub CheckSymbolPage {
+  my $url = SymbolPageURL();
+  my $command = ShellEscape(@URL_FETCHER, $url);
+  open(SYMBOL, "$command |") or error($command);
+  my $line = ;
+  $line =~ s/\r//g;         # turn windows-looking lines into unix-looking lines
+  close(SYMBOL);
+  unless (defined($line)) {
+    error("$url doesn't exist\n");
+  }
+
+  if ($line =~ /^num_symbols:\s+(\d+)$/) {
+    if ($1 == 0) {
+      error("Stripped binary. No symbols available.\n");
+    }
+  } else {
+    error("Failed to get the number of symbols from $url\n");
+  }
+}
+
+sub IsProfileURL {
+  my $profile_name = shift;
+  if (-f $profile_name) {
+    printf STDERR "Using local file $profile_name.\n";
+    return 0;
+  }
+  return 1;
+}
+
+sub ParseProfileURL {
+  my $profile_name = shift;
+
+  if (!defined($profile_name) || $profile_name eq "") {
+    return ();
+  }
+
+  # Split profile URL - matches all non-empty strings, so no test.
+  $profile_name =~ m,^(https?://)?([^/]+)(.*?)(/|$PROFILES)?$,;
+
+  my $proto = $1 || "http://";
+  my $hostport = $2;
+  my $prefix = $3;
+  my $profile = $4 || "/";
+
+  my $host = $hostport;
+  $host =~ s/:.*//;
+
+  my $baseurl = "$proto$hostport$prefix";
+  return ($host, $baseurl, $profile);
+}
+
+# We fetch symbols from the first profile argument.
+sub SymbolPageURL {
+  my ($host, $baseURL, $path) = ParseProfileURL($main::pfile_args[0]);
+  return "$baseURL$SYMBOL_PAGE";
+}
+
+sub FetchProgramName() {
+  my ($host, $baseURL, $path) = ParseProfileURL($main::pfile_args[0]);
+  my $url = "$baseURL$PROGRAM_NAME_PAGE";
+  my $command_line = ShellEscape(@URL_FETCHER, $url);
+  open(CMDLINE, "$command_line |") or error($command_line);
+  my $cmdline = ;
+  $cmdline =~ s/\r//g;   # turn windows-looking lines into unix-looking lines
+  close(CMDLINE);
+  error("Failed to get program name from $url\n") unless defined($cmdline);
+  $cmdline =~ s/\x00.+//;  # Remove argv[1] and latters.
+  $cmdline =~ s!\n!!g;  # Remove LFs.
+  return $cmdline;
+}
+
+# Gee, curl's -L (--location) option isn't reliable at least
+# with its 7.12.3 version.  Curl will forget to post data if
+# there is a redirection.  This function is a workaround for
+# curl.  Redirection happens on borg hosts.
+sub ResolveRedirectionForCurl {
+  my $url = shift;
+  my $command_line = ShellEscape(@URL_FETCHER, "--head", $url);
+  open(CMDLINE, "$command_line |") or error($command_line);
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    if (/^Location: (.*)/) {
+      $url = $1;
+    }
+  }
+  close(CMDLINE);
+  return $url;
+}
+
+# Add a timeout flat to URL_FETCHER.  Returns a new list.
+sub AddFetchTimeout {
+  my $timeout = shift;
+  my @fetcher = @_;
+  if (defined($timeout)) {
+    if (join(" ", @fetcher) =~ m/\bcurl -s/) {
+      push(@fetcher, "--max-time", sprintf("%d", $timeout));
+    } elsif (join(" ", @fetcher) =~ m/\brpcget\b/) {
+      push(@fetcher, sprintf("--deadline=%d", $timeout));
+    }
+  }
+  return @fetcher;
+}
+
+# Reads a symbol map from the file handle name given as $1, returning
+# the resulting symbol map.  Also processes variables relating to symbols.
+# Currently, the only variable processed is 'binary=' which updates
+# $main::prog to have the correct program name.
+sub ReadSymbols {
+  my $in = shift;
+  my $map = {};
+  while (<$in>) {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    # Removes all the leading zeroes from the symbols, see comment below.
+    if (m/^0x0*([0-9a-f]+)\s+(.+)/) {
+      $map->{$1} = $2;
+    } elsif (m/^---/) {
+      last;
+    } elsif (m/^([a-z][^=]*)=(.*)$/ ) {
+      my ($variable, $value) = ($1, $2);
+      for ($variable, $value) {
+        s/^\s+//;
+        s/\s+$//;
+      }
+      if ($variable eq "binary") {
+        if ($main::prog ne $UNKNOWN_BINARY && $main::prog ne $value) {
+          printf STDERR ("Warning: Mismatched binary name '%s', using '%s'.\n",
+                         $main::prog, $value);
+        }
+        $main::prog = $value;
+      } else {
+        printf STDERR ("Ignoring unknown variable in symbols list: " .
+            "'%s' = '%s'\n", $variable, $value);
+      }
+    }
+  }
+  return $map;
+}
+
+# Fetches and processes symbols to prepare them for use in the profile output
+# code.  If the optional 'symbol_map' arg is not given, fetches symbols from
+# $SYMBOL_PAGE for all PC values found in profile.  Otherwise, the raw symbols
+# are assumed to have already been fetched into 'symbol_map' and are simply
+# extracted and processed.
+sub FetchSymbols {
+  my $pcset = shift;
+  my $symbol_map = shift;
+
+  my %seen = ();
+  my @pcs = grep { !$seen{$_}++ } keys(%$pcset);  # uniq
+
+  if (!defined($symbol_map)) {
+    my $post_data = join("+", sort((map {"0x" . "$_"} @pcs)));
+
+    open(POSTFILE, ">$main::tmpfile_sym");
+    print POSTFILE $post_data;
+    close(POSTFILE);
+
+    my $url = SymbolPageURL();
+
+    my $command_line;
+    if (join(" ", @URL_FETCHER) =~ m/\bcurl -s/) {
+      $url = ResolveRedirectionForCurl($url);
+      $command_line = ShellEscape(@URL_FETCHER, "-d", "\@$main::tmpfile_sym",
+                                  $url);
+    } else {
+      $command_line = (ShellEscape(@URL_FETCHER, "--post", $url)
+                       . " < " . ShellEscape($main::tmpfile_sym));
+    }
+    # We use c++filt in case $SYMBOL_PAGE gives us mangled symbols.
+    my $escaped_cppfilt = ShellEscape($obj_tool_map{"c++filt"});
+    open(SYMBOL, "$command_line | $escaped_cppfilt |") or error($command_line);
+    $symbol_map = ReadSymbols(*SYMBOL{IO});
+    close(SYMBOL);
+  }
+
+  my $symbols = {};
+  foreach my $pc (@pcs) {
+    my $fullname;
+    # For 64 bits binaries, symbols are extracted with 8 leading zeroes.
+    # Then /symbol reads the long symbols in as uint64, and outputs
+    # the result with a "0x%08llx" format which get rid of the zeroes.
+    # By removing all the leading zeroes in both $pc and the symbols from
+    # /symbol, the symbols match and are retrievable from the map.
+    my $shortpc = $pc;
+    $shortpc =~ s/^0*//;
+    # Each line may have a list of names, which includes the function
+    # and also other functions it has inlined.  They are separated (in
+    # PrintSymbolizedProfile), by --, which is illegal in function names.
+    my $fullnames;
+    if (defined($symbol_map->{$shortpc})) {
+      $fullnames = $symbol_map->{$shortpc};
+    } else {
+      $fullnames = "0x" . $pc;  # Just use addresses
+    }
+    my $sym = [];
+    $symbols->{$pc} = $sym;
+    foreach my $fullname (split("--", $fullnames)) {
+      my $name = ShortFunctionName($fullname);
+      push(@{$sym}, $name, "?", $fullname);
+    }
+  }
+  return $symbols;
+}
+
+sub BaseName {
+  my $file_name = shift;
+  $file_name =~ s!^.*/!!;  # Remove directory name
+  return $file_name;
+}
+
+sub MakeProfileBaseName {
+  my ($binary_name, $profile_name) = @_;
+  my ($host, $baseURL, $path) = ParseProfileURL($profile_name);
+  my $binary_shortname = BaseName($binary_name);
+  return sprintf("%s.%s.%s",
+                 $binary_shortname, $main::op_time, $host);
+}
+
+sub FetchDynamicProfile {
+  my $binary_name = shift;
+  my $profile_name = shift;
+  my $fetch_name_only = shift;
+  my $encourage_patience = shift;
+
+  if (!IsProfileURL($profile_name)) {
+    return $profile_name;
+  } else {
+    my ($host, $baseURL, $path) = ParseProfileURL($profile_name);
+    if ($path eq "" || $path eq "/") {
+      # Missing type specifier defaults to cpu-profile
+      $path = $PROFILE_PAGE;
+    }
+
+    my $profile_file = MakeProfileBaseName($binary_name, $profile_name);
+
+    my $url = "$baseURL$path";
+    my $fetch_timeout = undef;
+    if ($path =~ m/$PROFILE_PAGE|$PMUPROFILE_PAGE/) {
+      if ($path =~ m/[?]/) {
+        $url .= "&";
+      } else {
+        $url .= "?";
+      }
+      $url .= sprintf("seconds=%d", $main::opt_seconds);
+      $fetch_timeout = $main::opt_seconds * 1.01 + 60;
+    } else {
+      # For non-CPU profiles, we add a type-extension to
+      # the target profile file name.
+      my $suffix = $path;
+      $suffix =~ s,/,.,g;
+      $profile_file .= $suffix;
+    }
+
+    my $profile_dir = $ENV{"PPROF_TMPDIR"} || ($ENV{HOME} . "/pprof");
+    if (! -d $profile_dir) {
+      mkdir($profile_dir)
+          || die("Unable to create profile directory $profile_dir: $!\n");
+    }
+    my $tmp_profile = "$profile_dir/.tmp.$profile_file";
+    my $real_profile = "$profile_dir/$profile_file";
+
+    if ($fetch_name_only > 0) {
+      return $real_profile;
+    }
+
+    my @fetcher = AddFetchTimeout($fetch_timeout, @URL_FETCHER);
+    my $cmd = ShellEscape(@fetcher, $url) . " > " . ShellEscape($tmp_profile);
+    if ($path =~ m/$PROFILE_PAGE|$PMUPROFILE_PAGE|$CENSUSPROFILE_PAGE/){
+      print STDERR "Gathering CPU profile from $url for $main::opt_seconds seconds to\n  ${real_profile}\n";
+      if ($encourage_patience) {
+        print STDERR "Be patient...\n";
+      }
+    } else {
+      print STDERR "Fetching $path profile from $url to\n  ${real_profile}\n";
+    }
+
+    (system($cmd) == 0) || error("Failed to get profile: $cmd: $!\n");
+    (system("mv", $tmp_profile, $real_profile) == 0) || error("Unable to rename profile\n");
+    print STDERR "Wrote profile to $real_profile\n";
+    $main::collected_profile = $real_profile;
+    return $main::collected_profile;
+  }
+}
+
+# Collect profiles in parallel
+sub FetchDynamicProfiles {
+  my $items = scalar(@main::pfile_args);
+  my $levels = log($items) / log(2);
+
+  if ($items == 1) {
+    $main::profile_files[0] = FetchDynamicProfile($main::prog, $main::pfile_args[0], 0, 1);
+  } else {
+    # math rounding issues
+    if ((2 ** $levels) < $items) {
+     $levels++;
+    }
+    my $count = scalar(@main::pfile_args);
+    for (my $i = 0; $i < $count; $i++) {
+      $main::profile_files[$i] = FetchDynamicProfile($main::prog, $main::pfile_args[$i], 1, 0);
+    }
+    print STDERR "Fetching $count profiles, Be patient...\n";
+    FetchDynamicProfilesRecurse($levels, 0, 0);
+    $main::collected_profile = join(" \\\n    ", @main::profile_files);
+  }
+}
+
+# Recursively fork a process to get enough processes
+# collecting profiles
+sub FetchDynamicProfilesRecurse {
+  my $maxlevel = shift;
+  my $level = shift;
+  my $position = shift;
+
+  if (my $pid = fork()) {
+    $position = 0 | ($position << 1);
+    TryCollectProfile($maxlevel, $level, $position);
+    wait;
+  } else {
+    $position = 1 | ($position << 1);
+    TryCollectProfile($maxlevel, $level, $position);
+    cleanup();
+    exit(0);
+  }
+}
+
+# Collect a single profile
+sub TryCollectProfile {
+  my $maxlevel = shift;
+  my $level = shift;
+  my $position = shift;
+
+  if ($level >= ($maxlevel - 1)) {
+    if ($position < scalar(@main::pfile_args)) {
+      FetchDynamicProfile($main::prog, $main::pfile_args[$position], 0, 0);
+    }
+  } else {
+    FetchDynamicProfilesRecurse($maxlevel, $level+1, $position);
+  }
+}
+
+##### Parsing code #####
+
+# Provide a small streaming-read module to handle very large
+# cpu-profile files.  Stream in chunks along a sliding window.
+# Provides an interface to get one 'slot', correctly handling
+# endian-ness differences.  A slot is one 32-bit or 64-bit word
+# (depending on the input profile).  We tell endianness and bit-size
+# for the profile by looking at the first 8 bytes: in cpu profiles,
+# the second slot is always 3 (we'll accept anything that's not 0).
+BEGIN {
+  package CpuProfileStream;
+
+  sub new {
+    my ($class, $file, $fname) = @_;
+    my $self = { file        => $file,
+                 base        => 0,
+                 stride      => 512 * 1024,   # must be a multiple of bitsize/8
+                 slots       => [],
+                 unpack_code => "",           # N for big-endian, V for little
+                 perl_is_64bit => 1,          # matters if profile is 64-bit
+    };
+    bless $self, $class;
+    # Let unittests adjust the stride
+    if ($main::opt_test_stride > 0) {
+      $self->{stride} = $main::opt_test_stride;
+    }
+    # Read the first two slots to figure out bitsize and endianness.
+    my $slots = $self->{slots};
+    my $str;
+    read($self->{file}, $str, 8);
+    # Set the global $address_length based on what we see here.
+    # 8 is 32-bit (8 hexadecimal chars); 16 is 64-bit (16 hexadecimal chars).
+    $address_length = ($str eq (chr(0)x8)) ? 16 : 8;
+    if ($address_length == 8) {
+      if (substr($str, 6, 2) eq chr(0)x2) {
+        $self->{unpack_code} = 'V';  # Little-endian.
+      } elsif (substr($str, 4, 2) eq chr(0)x2) {
+        $self->{unpack_code} = 'N';  # Big-endian
+      } else {
+        ::error("$fname: header size >= 2**16\n");
+      }
+      @$slots = unpack($self->{unpack_code} . "*", $str);
+    } else {
+      # If we're a 64-bit profile, check if we're a 64-bit-capable
+      # perl.  Otherwise, each slot will be represented as a float
+      # instead of an int64, losing precision and making all the
+      # 64-bit addresses wrong.  We won't complain yet, but will
+      # later if we ever see a value that doesn't fit in 32 bits.
+      my $has_q = 0;
+      eval { $has_q = pack("Q", "1") ? 1 : 1; };
+      if (!$has_q) {
+        $self->{perl_is_64bit} = 0;
+      }
+      read($self->{file}, $str, 8);
+      if (substr($str, 4, 4) eq chr(0)x4) {
+        # We'd love to use 'Q', but it's a) not universal, b) not endian-proof.
+        $self->{unpack_code} = 'V';  # Little-endian.
+      } elsif (substr($str, 0, 4) eq chr(0)x4) {
+        $self->{unpack_code} = 'N';  # Big-endian
+      } else {
+        ::error("$fname: header size >= 2**32\n");
+      }
+      my @pair = unpack($self->{unpack_code} . "*", $str);
+      # Since we know one of the pair is 0, it's fine to just add them.
+      @$slots = (0, $pair[0] + $pair[1]);
+    }
+    return $self;
+  }
+
+  # Load more data when we access slots->get(X) which is not yet in memory.
+  sub overflow {
+    my ($self) = @_;
+    my $slots = $self->{slots};
+    $self->{base} += $#$slots + 1;   # skip over data we're replacing
+    my $str;
+    read($self->{file}, $str, $self->{stride});
+    if ($address_length == 8) {      # the 32-bit case
+      # This is the easy case: unpack provides 32-bit unpacking primitives.
+      @$slots = unpack($self->{unpack_code} . "*", $str);
+    } else {
+      # We need to unpack 32 bits at a time and combine.
+      my @b32_values = unpack($self->{unpack_code} . "*", $str);
+      my @b64_values = ();
+      for (my $i = 0; $i < $#b32_values; $i += 2) {
+        # TODO(csilvers): if this is a 32-bit perl, the math below
+        #    could end up in a too-large int, which perl will promote
+        #    to a double, losing necessary precision.  Deal with that.
+        #    Right now, we just die.
+        my ($lo, $hi) = ($b32_values[$i], $b32_values[$i+1]);
+        if ($self->{unpack_code} eq 'N') {    # big-endian
+          ($lo, $hi) = ($hi, $lo);
+        }
+        my $value = $lo + $hi * (2**32);
+        if (!$self->{perl_is_64bit} &&   # check value is exactly represented
+            (($value % (2**32)) != $lo || int($value / (2**32)) != $hi)) {
+          ::error("Need a 64-bit perl to process this 64-bit profile.\n");
+        }
+        push(@b64_values, $value);
+      }
+      @$slots = @b64_values;
+    }
+  }
+
+  # Access the i-th long in the file (logically), or -1 at EOF.
+  sub get {
+    my ($self, $idx) = @_;
+    my $slots = $self->{slots};
+    while ($#$slots >= 0) {
+      if ($idx < $self->{base}) {
+        # The only time we expect a reference to $slots[$i - something]
+        # after referencing $slots[$i] is reading the very first header.
+        # Since $stride > |header|, that shouldn't cause any lookback
+        # errors.  And everything after the header is sequential.
+        print STDERR "Unexpected look-back reading CPU profile";
+        return -1;   # shrug, don't know what better to return
+      } elsif ($idx > $self->{base} + $#$slots) {
+        $self->overflow();
+      } else {
+        return $slots->[$idx - $self->{base}];
+      }
+    }
+    # If we get here, $slots is [], which means we've reached EOF
+    return -1;  # unique since slots is supposed to hold unsigned numbers
+  }
+}
+
+# Reads the top, 'header' section of a profile, and returns the last
+# line of the header, commonly called a 'header line'.  The header
+# section of a profile consists of zero or more 'command' lines that
+# are instructions to pprof, which pprof executes when reading the
+# header.  All 'command' lines start with a %.  After the command
+# lines is the 'header line', which is a profile-specific line that
+# indicates what type of profile it is, and perhaps other global
+# information about the profile.  For instance, here's a header line
+# for a heap profile:
+#   heap profile:     53:    38236 [  5525:  1284029] @ heapprofile
+# For historical reasons, the CPU profile does not contain a text-
+# readable header line.  If the profile looks like a CPU profile,
+# this function returns "".  If no header line could be found, this
+# function returns undef.
+#
+# The following commands are recognized:
+#   %warn -- emit the rest of this line to stderr, prefixed by 'WARNING:'
+#
+# The input file should be in binmode.
+sub ReadProfileHeader {
+  local *PROFILE = shift;
+  my $firstchar = "";
+  my $line = "";
+  read(PROFILE, $firstchar, 1);
+  seek(PROFILE, -1, 1);                    # unread the firstchar
+  if ($firstchar !~ /[[:print:]]/) {       # is not a text character
+    return "";
+  }
+  while (defined($line = )) {
+    $line =~ s/\r//g;   # turn windows-looking lines into unix-looking lines
+    if ($line =~ /^%warn\s+(.*)/) {        # 'warn' command
+      # Note this matches both '%warn blah\n' and '%warn\n'.
+      print STDERR "WARNING: $1\n";        # print the rest of the line
+    } elsif ($line =~ /^%/) {
+      print STDERR "Ignoring unknown command from profile header: $line";
+    } else {
+      # End of commands, must be the header line.
+      return $line;
+    }
+  }
+  return undef;     # got to EOF without seeing a header line
+}
+
+sub IsSymbolizedProfileFile {
+  my $file_name = shift;
+  if (!(-e $file_name) || !(-r $file_name)) {
+    return 0;
+  }
+  # Check if the file contains a symbol-section marker.
+  open(TFILE, "<$file_name");
+  binmode TFILE;
+  my $firstline = ReadProfileHeader(*TFILE);
+  close(TFILE);
+  if (!$firstline) {
+    return 0;
+  }
+  $SYMBOL_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $symbol_marker = $&;
+  return $firstline =~ /^--- *$symbol_marker/;
+}
+
+# Parse profile generated by common/profiler.cc and return a reference
+# to a map:
+#      $result->{version}     Version number of profile file
+#      $result->{period}      Sampling period (in microseconds)
+#      $result->{profile}     Profile object
+#      $result->{map}         Memory map info from profile
+#      $result->{pcs}         Hash of all PC values seen, key is hex address
+sub ReadProfile {
+  my $prog = shift;
+  my $fname = shift;
+  my $result;            # return value
+
+  $CONTENTION_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $contention_marker = $&;
+  $GROWTH_PAGE  =~ m,[^/]+$,;    # matches everything after the last slash
+  my $growth_marker = $&;
+  $SYMBOL_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $symbol_marker = $&;
+  $PROFILE_PAGE =~ m,[^/]+$,;    # matches everything after the last slash
+  my $profile_marker = $&;
+
+  # Look at first line to see if it is a heap or a CPU profile.
+  # CPU profile may start with no header at all, and just binary data
+  # (starting with \0\0\0\0) -- in that case, don't try to read the
+  # whole firstline, since it may be gigabytes(!) of data.
+  open(PROFILE, "<$fname") || error("$fname: $!\n");
+  binmode PROFILE;      # New perls do UTF-8 processing
+  my $header = ReadProfileHeader(*PROFILE);
+  if (!defined($header)) {   # means "at EOF"
+    error("Profile is empty.\n");
+  }
+
+  my $symbols;
+  if ($header =~ m/^--- *$symbol_marker/o) {
+    # Verify that the user asked for a symbolized profile
+    if (!$main::use_symbolized_profile) {
+      # we have both a binary and symbolized profiles, abort
+      error("FATAL ERROR: Symbolized profile\n   $fname\ncannot be used with " .
+            "a binary arg. Try again without passing\n   $prog\n");
+    }
+    # Read the symbol section of the symbolized profile file.
+    $symbols = ReadSymbols(*PROFILE{IO});
+    # Read the next line to get the header for the remaining profile.
+    $header = ReadProfileHeader(*PROFILE) || "";
+  }
+
+  $main::profile_type = '';
+  if ($header =~ m/^heap profile:.*$growth_marker/o) {
+    $main::profile_type = 'growth';
+    $result =  ReadHeapProfile($prog, *PROFILE, $header);
+  } elsif ($header =~ m/^heap profile:/) {
+    $main::profile_type = 'heap';
+    $result =  ReadHeapProfile($prog, *PROFILE, $header);
+  } elsif ($header =~ m/^--- *$contention_marker/o) {
+    $main::profile_type = 'contention';
+    $result = ReadSynchProfile($prog, *PROFILE);
+  } elsif ($header =~ m/^--- *Stacks:/) {
+    print STDERR
+      "Old format contention profile: mistakenly reports " .
+      "condition variable signals as lock contentions.\n";
+    $main::profile_type = 'contention';
+    $result = ReadSynchProfile($prog, *PROFILE);
+  } elsif ($header =~ m/^--- *$profile_marker/) {
+    # the binary cpu profile data starts immediately after this line
+    $main::profile_type = 'cpu';
+    $result = ReadCPUProfile($prog, $fname, *PROFILE);
+  } else {
+    if (defined($symbols)) {
+      # a symbolized profile contains a format we don't recognize, bail out
+      error("$fname: Cannot recognize profile section after symbols.\n");
+    }
+    # no ascii header present -- must be a CPU profile
+    $main::profile_type = 'cpu';
+    $result = ReadCPUProfile($prog, $fname, *PROFILE);
+  }
+
+  close(PROFILE);
+
+  # if we got symbols along with the profile, return those as well
+  if (defined($symbols)) {
+    $result->{symbols} = $symbols;
+  }
+
+  return $result;
+}
+
+# Subtract one from caller pc so we map back to call instr.
+# However, don't do this if we're reading a symbolized profile
+# file, in which case the subtract-one was done when the file
+# was written.
+#
+# We apply the same logic to all readers, though ReadCPUProfile uses an
+# independent implementation.
+sub FixCallerAddresses {
+  my $stack = shift;
+  if ($main::use_symbolized_profile) {
+    return $stack;
+  } else {
+    $stack =~ /(\s)/;
+    my $delimiter = $1;
+    my @addrs = split(' ', $stack);
+    my @fixedaddrs;
+    $#fixedaddrs = $#addrs;
+    if ($#addrs >= 0) {
+      $fixedaddrs[0] = $addrs[0];
+    }
+    for (my $i = 1; $i <= $#addrs; $i++) {
+      $fixedaddrs[$i] = AddressSub($addrs[$i], "0x1");
+    }
+    return join $delimiter, @fixedaddrs;
+  }
+}
+
+# CPU profile reader
+sub ReadCPUProfile {
+  my $prog = shift;
+  my $fname = shift;       # just used for logging
+  local *PROFILE = shift;
+  my $version;
+  my $period;
+  my $i;
+  my $profile = {};
+  my $pcs = {};
+
+  # Parse string into array of slots.
+  my $slots = CpuProfileStream->new(*PROFILE, $fname);
+
+  # Read header.  The current header version is a 5-element structure
+  # containing:
+  #   0: header count (always 0)
+  #   1: header "words" (after this one: 3)
+  #   2: format version (0)
+  #   3: sampling period (usec)
+  #   4: unused padding (always 0)
+  if ($slots->get(0) != 0 ) {
+    error("$fname: not a profile file, or old format profile file\n");
+  }
+  $i = 2 + $slots->get(1);
+  $version = $slots->get(2);
+  $period = $slots->get(3);
+  # Do some sanity checking on these header values.
+  if ($version > (2**32) || $period > (2**32) || $i > (2**32) || $i < 5) {
+    error("$fname: not a profile file, or corrupted profile file\n");
+  }
+
+  # Parse profile
+  while ($slots->get($i) != -1) {
+    my $n = $slots->get($i++);
+    my $d = $slots->get($i++);
+    if ($d > (2**16)) {  # TODO(csilvers): what's a reasonable max-stack-depth?
+      my $addr = sprintf("0%o", $i * ($address_length == 8 ? 4 : 8));
+      print STDERR "At index $i (address $addr):\n";
+      error("$fname: stack trace depth >= 2**32\n");
+    }
+    if ($slots->get($i) == 0) {
+      # End of profile data marker
+      $i += $d;
+      last;
+    }
+
+    # Make key out of the stack entries
+    my @k = ();
+    for (my $j = 0; $j < $d; $j++) {
+      my $pc = $slots->get($i+$j);
+      # Subtract one from caller pc so we map back to call instr.
+      # However, don't do this if we're reading a symbolized profile
+      # file, in which case the subtract-one was done when the file
+      # was written.
+      if ($j > 0 && !$main::use_symbolized_profile) {
+        $pc--;
+      }
+      $pc = sprintf("%0*x", $address_length, $pc);
+      $pcs->{$pc} = 1;
+      push @k, $pc;
+    }
+
+    AddEntry($profile, (join "\n", @k), $n);
+    $i += $d;
+  }
+
+  # Parse map
+  my $map = '';
+  seek(PROFILE, $i * ($address_length / 2), 0);
+  read(PROFILE, $map, (stat PROFILE)[7]);
+
+  my $r = {};
+  $r->{version} = $version;
+  $r->{period} = $period;
+  $r->{profile} = $profile;
+  $r->{libs} = ParseLibraries($prog, $map, $pcs);
+  $r->{pcs} = $pcs;
+
+  return $r;
+}
+
+sub ReadHeapProfile {
+  my $prog = shift;
+  local *PROFILE = shift;
+  my $header = shift;
+
+  my $index = 1;
+  if ($main::opt_inuse_space) {
+    $index = 1;
+  } elsif ($main::opt_inuse_objects) {
+    $index = 0;
+  } elsif ($main::opt_alloc_space) {
+    $index = 3;
+  } elsif ($main::opt_alloc_objects) {
+    $index = 2;
+  }
+
+  # Find the type of this profile.  The header line looks like:
+  #    heap profile:   1246:  8800744 [  1246:  8800744] @ /266053
+  # There are two pairs , the first inuse objects/space, and the
+  # second allocated objects/space.  This is followed optionally by a profile
+  # type, and if that is present, optionally by a sampling frequency.
+  # For remote heap profiles (v1):
+  # The interpretation of the sampling frequency is that the profiler, for
+  # each sample, calculates a uniformly distributed random integer less than
+  # the given value, and records the next sample after that many bytes have
+  # been allocated.  Therefore, the expected sample interval is half of the
+  # given frequency.  By default, if not specified, the expected sample
+  # interval is 128KB.  Only remote-heap-page profiles are adjusted for
+  # sample size.
+  # For remote heap profiles (v2):
+  # The sampling frequency is the rate of a Poisson process. This means that
+  # the probability of sampling an allocation of size X with sampling rate Y
+  # is 1 - exp(-X/Y)
+  # For version 2, a typical header line might look like this:
+  # heap profile:   1922: 127792360 [  1922: 127792360] @ _v2/524288
+  # the trailing number (524288) is the sampling rate. (Version 1 showed
+  # double the 'rate' here)
+  my $sampling_algorithm = 0;
+  my $sample_adjustment = 0;
+  chomp($header);
+  my $type = "unknown";
+  if ($header =~ m"^heap profile:\s*(\d+):\s+(\d+)\s+\[\s*(\d+):\s+(\d+)\](\s*@\s*([^/]*)(/(\d+))?)?") {
+    if (defined($6) && ($6 ne '')) {
+      $type = $6;
+      my $sample_period = $8;
+      # $type is "heapprofile" for profiles generated by the
+      # heap-profiler, and either "heap" or "heap_v2" for profiles
+      # generated by sampling directly within tcmalloc.  It can also
+      # be "growth" for heap-growth profiles.  The first is typically
+      # found for profiles generated locally, and the others for
+      # remote profiles.
+      if (($type eq "heapprofile") || ($type !~ /heap/) ) {
+        # No need to adjust for the sampling rate with heap-profiler-derived data
+        $sampling_algorithm = 0;
+      } elsif ($type =~ /_v2/) {
+        $sampling_algorithm = 2;     # version 2 sampling
+        if (defined($sample_period) && ($sample_period ne '')) {
+          $sample_adjustment = int($sample_period);
+        }
+      } else {
+        $sampling_algorithm = 1;     # version 1 sampling
+        if (defined($sample_period) && ($sample_period ne '')) {
+          $sample_adjustment = int($sample_period)/2;
+        }
+      }
+    } else {
+      # We detect whether or not this is a remote-heap profile by checking
+      # that the total-allocated stats ($n2,$s2) are exactly the
+      # same as the in-use stats ($n1,$s1).  It is remotely conceivable
+      # that a non-remote-heap profile may pass this check, but it is hard
+      # to imagine how that could happen.
+      # In this case it's so old it's guaranteed to be remote-heap version 1.
+      my ($n1, $s1, $n2, $s2) = ($1, $2, $3, $4);
+      if (($n1 == $n2) && ($s1 == $s2)) {
+        # This is likely to be a remote-heap based sample profile
+        $sampling_algorithm = 1;
+      }
+    }
+  }
+
+  if ($sampling_algorithm > 0) {
+    # For remote-heap generated profiles, adjust the counts and sizes to
+    # account for the sample rate (we sample once every 128KB by default).
+    if ($sample_adjustment == 0) {
+      # Turn on profile adjustment.
+      $sample_adjustment = 128*1024;
+      print STDERR "Adjusting heap profiles for 1-in-128KB sampling rate\n";
+    } else {
+      printf STDERR ("Adjusting heap profiles for 1-in-%d sampling rate\n",
+                     $sample_adjustment);
+    }
+    if ($sampling_algorithm > 1) {
+      # We don't bother printing anything for the original version (version 1)
+      printf STDERR "Heap version $sampling_algorithm\n";
+    }
+  }
+
+  my $profile = {};
+  my $pcs = {};
+  my $map = "";
+
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    if (/^MAPPED_LIBRARIES:/) {
+      # Read the /proc/self/maps data
+      while () {
+        s/\r//g;         # turn windows-looking lines into unix-looking lines
+        $map .= $_;
+      }
+      last;
+    }
+
+    if (/^--- Memory map:/) {
+      # Read /proc/self/maps data as formatted by DumpAddressMap()
+      my $buildvar = "";
+      while () {
+        s/\r//g;         # turn windows-looking lines into unix-looking lines
+        # Parse "build=" specification if supplied
+        if (m/^\s*build=(.*)\n/) {
+          $buildvar = $1;
+        }
+
+        # Expand "$build" variable if available
+        $_ =~ s/\$build\b/$buildvar/g;
+
+        $map .= $_;
+      }
+      last;
+    }
+
+    # Read entry of the form:
+    #  :  [: ] @ a1 a2 a3 ... an
+    s/^\s*//;
+    s/\s*$//;
+    if (m/^\s*(\d+):\s+(\d+)\s+\[\s*(\d+):\s+(\d+)\]\s+@\s+(.*)$/) {
+      my $stack = $5;
+      my ($n1, $s1, $n2, $s2) = ($1, $2, $3, $4);
+
+      if ($sample_adjustment) {
+        if ($sampling_algorithm == 2) {
+          # Remote-heap version 2
+          # The sampling frequency is the rate of a Poisson process.
+          # This means that the probability of sampling an allocation of
+          # size X with sampling rate Y is 1 - exp(-X/Y)
+          if ($n1 != 0) {
+            my $ratio = (($s1*1.0)/$n1)/($sample_adjustment);
+            my $scale_factor = 1/(1 - exp(-$ratio));
+            $n1 *= $scale_factor;
+            $s1 *= $scale_factor;
+          }
+          if ($n2 != 0) {
+            my $ratio = (($s2*1.0)/$n2)/($sample_adjustment);
+            my $scale_factor = 1/(1 - exp(-$ratio));
+            $n2 *= $scale_factor;
+            $s2 *= $scale_factor;
+          }
+        } else {
+          # Remote-heap version 1
+          my $ratio;
+          $ratio = (($s1*1.0)/$n1)/($sample_adjustment);
+          if ($ratio < 1) {
+            $n1 /= $ratio;
+            $s1 /= $ratio;
+          }
+          $ratio = (($s2*1.0)/$n2)/($sample_adjustment);
+          if ($ratio < 1) {
+            $n2 /= $ratio;
+            $s2 /= $ratio;
+          }
+        }
+      }
+
+      my @counts = ($n1, $s1, $n2, $s2);
+      $stack = FixCallerAddresses($stack);
+      push @stackTraces, "$n1 $s1 $n2 $s2 $stack";
+      AddEntries($profile, $pcs, $stack, $counts[$index]);
+    }
+  }
+
+  my $r = {};
+  $r->{version} = "heap";
+  $r->{period} = 1;
+  $r->{profile} = $profile;
+  $r->{libs} = ParseLibraries($prog, $map, $pcs);
+  $r->{pcs} = $pcs;
+  return $r;
+}
+
+sub ReadSynchProfile {
+  my $prog = shift;
+  local *PROFILE = shift;
+  my $header = shift;
+
+  my $map = '';
+  my $profile = {};
+  my $pcs = {};
+  my $sampling_period = 1;
+  my $cyclespernanosec = 2.8;   # Default assumption for old binaries
+  my $seen_clockrate = 0;
+  my $line;
+
+  my $index = 0;
+  if ($main::opt_total_delay) {
+    $index = 0;
+  } elsif ($main::opt_contentions) {
+    $index = 1;
+  } elsif ($main::opt_mean_delay) {
+    $index = 2;
+  }
+
+  while ( $line =  ) {
+    $line =~ s/\r//g;      # turn windows-looking lines into unix-looking lines
+    if ( $line =~ /^\s*(\d+)\s+(\d+) \@\s*(.*?)\s*$/ ) {
+      my ($cycles, $count, $stack) = ($1, $2, $3);
+
+      # Convert cycles to nanoseconds
+      $cycles /= $cyclespernanosec;
+
+      # Adjust for sampling done by application
+      $cycles *= $sampling_period;
+      $count *= $sampling_period;
+
+      my @values = ($cycles, $count, $cycles / $count);
+      AddEntries($profile, $pcs, FixCallerAddresses($stack), $values[$index]);
+
+    } elsif ( $line =~ /^(slow release).*thread \d+  \@\s*(.*?)\s*$/ ||
+              $line =~ /^\s*(\d+) \@\s*(.*?)\s*$/ ) {
+      my ($cycles, $stack) = ($1, $2);
+      if ($cycles !~ /^\d+$/) {
+        next;
+      }
+
+      # Convert cycles to nanoseconds
+      $cycles /= $cyclespernanosec;
+
+      # Adjust for sampling done by application
+      $cycles *= $sampling_period;
+
+      AddEntries($profile, $pcs, FixCallerAddresses($stack), $cycles);
+
+    } elsif ( $line =~ m/^([a-z][^=]*)=(.*)$/ ) {
+      my ($variable, $value) = ($1,$2);
+      for ($variable, $value) {
+        s/^\s+//;
+        s/\s+$//;
+      }
+      if ($variable eq "cycles/second") {
+        $cyclespernanosec = $value / 1e9;
+        $seen_clockrate = 1;
+      } elsif ($variable eq "sampling period") {
+        $sampling_period = $value;
+      } elsif ($variable eq "ms since reset") {
+        # Currently nothing is done with this value in pprof
+        # So we just silently ignore it for now
+      } elsif ($variable eq "discarded samples") {
+        # Currently nothing is done with this value in pprof
+        # So we just silently ignore it for now
+      } else {
+        printf STDERR ("Ignoring unnknown variable in /contention output: " .
+                       "'%s' = '%s'\n",$variable,$value);
+      }
+    } else {
+      # Memory map entry
+      $map .= $line;
+    }
+  }
+
+  if (!$seen_clockrate) {
+    printf STDERR ("No cycles/second entry in profile; Guessing %.1f GHz\n",
+                   $cyclespernanosec);
+  }
+
+  my $r = {};
+  $r->{version} = 0;
+  $r->{period} = $sampling_period;
+  $r->{profile} = $profile;
+  $r->{libs} = ParseLibraries($prog, $map, $pcs);
+  $r->{pcs} = $pcs;
+  return $r;
+}
+
+# Given a hex value in the form "0x1abcd" or "1abcd", return either
+# "0001abcd" or "000000000001abcd", depending on the current (global)
+# address length.
+sub HexExtend {
+  my $addr = shift;
+
+  $addr =~ s/^(0x)?0*//;
+  my $zeros_needed = $address_length - length($addr);
+  if ($zeros_needed < 0) {
+    printf STDERR "Warning: address $addr is longer than address length $address_length\n";
+    return $addr;
+  }
+  return ("0" x $zeros_needed) . $addr;
+}
+
+##### Symbol extraction #####
+
+# Aggressively search the lib_prefix values for the given library
+# If all else fails, just return the name of the library unmodified.
+# If the lib_prefix is "/my/path,/other/path" and $file is "/lib/dir/mylib.so"
+# it will search the following locations in this order, until it finds a file:
+#   /my/path/lib/dir/mylib.so
+#   /other/path/lib/dir/mylib.so
+#   /my/path/dir/mylib.so
+#   /other/path/dir/mylib.so
+#   /my/path/mylib.so
+#   /other/path/mylib.so
+#   /lib/dir/mylib.so              (returned as last resort)
+sub FindLibrary {
+  my $file = shift;
+  my $suffix = $file;
+
+  # Search for the library as described above
+  do {
+    foreach my $prefix (@prefix_list) {
+      my $fullpath = $prefix . $suffix;
+      if (-e $fullpath) {
+        return $fullpath;
+      }
+    }
+  } while ($suffix =~ s|^/[^/]+/|/|);
+  return $file;
+}
+
+# Return path to library with debugging symbols.
+# For libc libraries, the copy in /usr/lib/debug contains debugging symbols
+sub DebuggingLibrary {
+  my $file = shift;
+  if ($file =~ m|^/| && -f "/usr/lib/debug$file") {
+    return "/usr/lib/debug$file";
+  }
+  if ($file =~ m|^/| && -f "/usr/lib/debug$file.debug") {
+    return "/usr/lib/debug$file.debug";
+  }
+  return undef;
+}
+
+# Parse text section header of a library using objdump
+sub ParseTextSectionHeaderFromObjdump {
+  my $lib = shift;
+
+  my $size = undef;
+  my $vma;
+  my $file_offset;
+  # Get objdump output from the library file to figure out how to
+  # map between mapped addresses and addresses in the library.
+  my $cmd = ShellEscape($obj_tool_map{"objdump"}, "-h", $lib);
+  open(OBJDUMP, "$cmd |") || error("$cmd: $!\n");
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    # Idx Name          Size      VMA       LMA       File off  Algn
+    #  10 .text         00104b2c  420156f0  420156f0  000156f0  2**4
+    # For 64-bit objects, VMA and LMA will be 16 hex digits, size and file
+    # offset may still be 8.  But AddressSub below will still handle that.
+    my @x = split;
+    if (($#x >= 6) && ($x[1] eq '.text')) {
+      $size = $x[2];
+      $vma = $x[3];
+      $file_offset = $x[5];
+      last;
+    }
+  }
+  close(OBJDUMP);
+
+  if (!defined($size)) {
+    return undef;
+  }
+
+  my $r = {};
+  $r->{size} = $size;
+  $r->{vma} = $vma;
+  $r->{file_offset} = $file_offset;
+
+  return $r;
+}
+
+# Parse text section header of a library using otool (on OS X)
+sub ParseTextSectionHeaderFromOtool {
+  my $lib = shift;
+
+  my $size = undef;
+  my $vma = undef;
+  my $file_offset = undef;
+  # Get otool output from the library file to figure out how to
+  # map between mapped addresses and addresses in the library.
+  my $command = ShellEscape($obj_tool_map{"otool"}, "-l", $lib);
+  open(OTOOL, "$command |") || error("$command: $!\n");
+  my $cmd = "";
+  my $sectname = "";
+  my $segname = "";
+  foreach my $line () {
+    $line =~ s/\r//g;      # turn windows-looking lines into unix-looking lines
+    # Load command <#>
+    #       cmd LC_SEGMENT
+    # [...]
+    # Section
+    #   sectname __text
+    #    segname __TEXT
+    #       addr 0x000009f8
+    #       size 0x00018b9e
+    #     offset 2552
+    #      align 2^2 (4)
+    # We will need to strip off the leading 0x from the hex addresses,
+    # and convert the offset into hex.
+    if ($line =~ /Load command/) {
+      $cmd = "";
+      $sectname = "";
+      $segname = "";
+    } elsif ($line =~ /Section/) {
+      $sectname = "";
+      $segname = "";
+    } elsif ($line =~ /cmd (\w+)/) {
+      $cmd = $1;
+    } elsif ($line =~ /sectname (\w+)/) {
+      $sectname = $1;
+    } elsif ($line =~ /segname (\w+)/) {
+      $segname = $1;
+    } elsif (!(($cmd eq "LC_SEGMENT" || $cmd eq "LC_SEGMENT_64") &&
+               $sectname eq "__text" &&
+               $segname eq "__TEXT")) {
+      next;
+    } elsif ($line =~ /\baddr 0x([0-9a-fA-F]+)/) {
+      $vma = $1;
+    } elsif ($line =~ /\bsize 0x([0-9a-fA-F]+)/) {
+      $size = $1;
+    } elsif ($line =~ /\boffset ([0-9]+)/) {
+      $file_offset = sprintf("%016x", $1);
+    }
+    if (defined($vma) && defined($size) && defined($file_offset)) {
+      last;
+    }
+  }
+  close(OTOOL);
+
+  if (!defined($vma) || !defined($size) || !defined($file_offset)) {
+     return undef;
+  }
+
+  my $r = {};
+  $r->{size} = $size;
+  $r->{vma} = $vma;
+  $r->{file_offset} = $file_offset;
+
+  return $r;
+}
+
+sub ParseTextSectionHeader {
+  # obj_tool_map("otool") is only defined if we're in a Mach-O environment
+  if (defined($obj_tool_map{"otool"})) {
+    my $r = ParseTextSectionHeaderFromOtool(@_);
+    if (defined($r)){
+      return $r;
+    }
+  }
+  # If otool doesn't work, or we don't have it, fall back to objdump
+  return ParseTextSectionHeaderFromObjdump(@_);
+}
+
+# Split /proc/pid/maps dump into a list of libraries
+sub ParseLibraries {
+  return if $main::use_symbol_page;  # We don't need libraries info.
+  my $prog = Cwd::abs_path(shift);
+  my $map = shift;
+  my $pcs = shift;
+
+  my $result = [];
+  my $h = "[a-f0-9]+";
+  my $zero_offset = HexExtend("0");
+
+  my $buildvar = "";
+  foreach my $l (split("\n", $map)) {
+    if ($l =~ m/^\s*build=(.*)$/) {
+      $buildvar = $1;
+    }
+
+    my $start;
+    my $finish;
+    my $offset;
+    my $lib;
+    if ($l =~ /^($h)-($h)\s+..x.\s+($h)\s+\S+:\S+\s+\d+\s+(.+\.(so|dll|dylib|bundle|node)((\.\d+)+\w*(\.\d+){0,3})?)$/i) {
+      # Full line from /proc/self/maps.  Example:
+      #   40000000-40015000 r-xp 00000000 03:01 12845071   /lib/ld-2.3.2.so
+      $start = HexExtend($1);
+      $finish = HexExtend($2);
+      $offset = HexExtend($3);
+      $lib = $4;
+      $lib =~ s|\\|/|g;     # turn windows-style paths into unix-style paths
+    } elsif ($l =~ /^\s*($h)-($h):\s*(\S+\.so(\.\d+)*)/) {
+      # Cooked line from DumpAddressMap.  Example:
+      #   40000000-40015000: /lib/ld-2.3.2.so
+      $start = HexExtend($1);
+      $finish = HexExtend($2);
+      $offset = $zero_offset;
+      $lib = $3;
+    } elsif (($l =~ /^($h)-($h)\s+..x.\s+($h)\s+\S+:\S+\s+\d+\s+(\S+)$/i) && ($4 eq $prog)) {
+      # PIEs and address space randomization do not play well with our
+      # default assumption that main executable is at lowest
+      # addresses. So we're detecting main executable in
+      # /proc/self/maps as well.
+      $start = HexExtend($1);
+      $finish = HexExtend($2);
+      $offset = HexExtend($3);
+      $lib = $4;
+      $lib =~ s|\\|/|g;     # turn windows-style paths into unix-style paths
+    } else {
+      next;
+    }
+
+    # Expand "$build" variable if available
+    $lib =~ s/\$build\b/$buildvar/g;
+
+    $lib = FindLibrary($lib);
+
+    # Check for pre-relocated libraries, which use pre-relocated symbol tables
+    # and thus require adjusting the offset that we'll use to translate
+    # VM addresses into symbol table addresses.
+    # Only do this if we're not going to fetch the symbol table from a
+    # debugging copy of the library.
+    if (!DebuggingLibrary($lib)) {
+      my $text = ParseTextSectionHeader($lib);
+      if (defined($text)) {
+         my $vma_offset = AddressSub($text->{vma}, $text->{file_offset});
+         $offset = AddressAdd($offset, $vma_offset);
+      }
+    }
+
+    push(@{$result}, [$lib, $start, $finish, $offset]);
+  }
+
+  # Append special entry for additional library (not relocated)
+  if ($main::opt_lib ne "") {
+    my $text = ParseTextSectionHeader($main::opt_lib);
+    if (defined($text)) {
+       my $start = $text->{vma};
+       my $finish = AddressAdd($start, $text->{size});
+
+       push(@{$result}, [$main::opt_lib, $start, $finish, $start]);
+    }
+  }
+
+  # Append special entry for the main program.  This covers
+  # 0..max_pc_value_seen, so that we assume pc values not found in one
+  # of the library ranges will be treated as coming from the main
+  # program binary.
+  my $min_pc = HexExtend("0");
+  my $max_pc = $min_pc;          # find the maximal PC value in any sample
+  foreach my $pc (keys(%{$pcs})) {
+    if (HexExtend($pc) gt $max_pc) { $max_pc = HexExtend($pc); }
+  }
+  push(@{$result}, [$prog, $min_pc, $max_pc, $zero_offset]);
+
+  return $result;
+}
+
+# Add two hex addresses of length $address_length.
+# Run pprof --test for unit test if this is changed.
+sub AddressAdd {
+  my $addr1 = shift;
+  my $addr2 = shift;
+  my $sum;
+
+  if ($address_length == 8) {
+    # Perl doesn't cope with wraparound arithmetic, so do it explicitly:
+    $sum = (hex($addr1)+hex($addr2)) % (0x10000000 * 16);
+    return sprintf("%08x", $sum);
+
+  } else {
+    # Do the addition in 7-nibble chunks to trivialize carry handling.
+
+    if ($main::opt_debug and $main::opt_test) {
+      print STDERR "AddressAdd $addr1 + $addr2 = ";
+    }
+
+    my $a1 = substr($addr1,-7);
+    $addr1 = substr($addr1,0,-7);
+    my $a2 = substr($addr2,-7);
+    $addr2 = substr($addr2,0,-7);
+    $sum = hex($a1) + hex($a2);
+    my $c = 0;
+    if ($sum > 0xfffffff) {
+      $c = 1;
+      $sum -= 0x10000000;
+    }
+    my $r = sprintf("%07x", $sum);
+
+    $a1 = substr($addr1,-7);
+    $addr1 = substr($addr1,0,-7);
+    $a2 = substr($addr2,-7);
+    $addr2 = substr($addr2,0,-7);
+    $sum = hex($a1) + hex($a2) + $c;
+    $c = 0;
+    if ($sum > 0xfffffff) {
+      $c = 1;
+      $sum -= 0x10000000;
+    }
+    $r = sprintf("%07x", $sum) . $r;
+
+    $sum = hex($addr1) + hex($addr2) + $c;
+    if ($sum > 0xff) { $sum -= 0x100; }
+    $r = sprintf("%02x", $sum) . $r;
+
+    if ($main::opt_debug and $main::opt_test) { print STDERR "$r\n"; }
+
+    return $r;
+  }
+}
+
+
+# Subtract two hex addresses of length $address_length.
+# Run pprof --test for unit test if this is changed.
+sub AddressSub {
+  my $addr1 = shift;
+  my $addr2 = shift;
+  my $diff;
+
+  if ($address_length == 8) {
+    # Perl doesn't cope with wraparound arithmetic, so do it explicitly:
+    $diff = (hex($addr1)-hex($addr2)) % (0x10000000 * 16);
+    return sprintf("%08x", $diff);
+
+  } else {
+    # Do the addition in 7-nibble chunks to trivialize borrow handling.
+    # if ($main::opt_debug) { print STDERR "AddressSub $addr1 - $addr2 = "; }
+
+    my $a1 = hex(substr($addr1,-7));
+    $addr1 = substr($addr1,0,-7);
+    my $a2 = hex(substr($addr2,-7));
+    $addr2 = substr($addr2,0,-7);
+    my $b = 0;
+    if ($a2 > $a1) {
+      $b = 1;
+      $a1 += 0x10000000;
+    }
+    $diff = $a1 - $a2;
+    my $r = sprintf("%07x", $diff);
+
+    $a1 = hex(substr($addr1,-7));
+    $addr1 = substr($addr1,0,-7);
+    $a2 = hex(substr($addr2,-7)) + $b;
+    $addr2 = substr($addr2,0,-7);
+    $b = 0;
+    if ($a2 > $a1) {
+      $b = 1;
+      $a1 += 0x10000000;
+    }
+    $diff = $a1 - $a2;
+    $r = sprintf("%07x", $diff) . $r;
+
+    $a1 = hex($addr1);
+    $a2 = hex($addr2) + $b;
+    if ($a2 > $a1) { $a1 += 0x100; }
+    $diff = $a1 - $a2;
+    $r = sprintf("%02x", $diff) . $r;
+
+    # if ($main::opt_debug) { print STDERR "$r\n"; }
+
+    return $r;
+  }
+}
+
+# Increment a hex addresses of length $address_length.
+# Run pprof --test for unit test if this is changed.
+sub AddressInc {
+  my $addr = shift;
+  my $sum;
+
+  if ($address_length == 8) {
+    # Perl doesn't cope with wraparound arithmetic, so do it explicitly:
+    $sum = (hex($addr)+1) % (0x10000000 * 16);
+    return sprintf("%08x", $sum);
+
+  } else {
+    # Do the addition in 7-nibble chunks to trivialize carry handling.
+    # We are always doing this to step through the addresses in a function,
+    # and will almost never overflow the first chunk, so we check for this
+    # case and exit early.
+
+    # if ($main::opt_debug) { print STDERR "AddressInc $addr1 = "; }
+
+    my $a1 = substr($addr,-7);
+    $addr = substr($addr,0,-7);
+    $sum = hex($a1) + 1;
+    my $r = sprintf("%07x", $sum);
+    if ($sum <= 0xfffffff) {
+      $r = $addr . $r;
+      # if ($main::opt_debug) { print STDERR "$r\n"; }
+      return HexExtend($r);
+    } else {
+      $r = "0000000";
+    }
+
+    $a1 = substr($addr,-7);
+    $addr = substr($addr,0,-7);
+    $sum = hex($a1) + 1;
+    $r = sprintf("%07x", $sum) . $r;
+    if ($sum <= 0xfffffff) {
+      $r = $addr . $r;
+      # if ($main::opt_debug) { print STDERR "$r\n"; }
+      return HexExtend($r);
+    } else {
+      $r = "00000000000000";
+    }
+
+    $sum = hex($addr) + 1;
+    if ($sum > 0xff) { $sum -= 0x100; }
+    $r = sprintf("%02x", $sum) . $r;
+
+    # if ($main::opt_debug) { print STDERR "$r\n"; }
+    return $r;
+  }
+}
+
+# Extract symbols for all PC values found in profile
+sub ExtractSymbols {
+  my $libs = shift;
+  my $pcset = shift;
+
+  my $symbols = {};
+
+  # Map each PC value to the containing library.  To make this faster,
+  # we sort libraries by their starting pc value (highest first), and
+  # advance through the libraries as we advance the pc.  Sometimes the
+  # addresses of libraries may overlap with the addresses of the main
+  # binary, so to make sure the libraries 'win', we iterate over the
+  # libraries in reverse order (which assumes the binary doesn't start
+  # in the middle of a library, which seems a fair assumption).
+  my @pcs = (sort { $a cmp $b } keys(%{$pcset}));  # pcset is 0-extended strings
+  foreach my $lib (sort {$b->[1] cmp $a->[1]} @{$libs}) {
+    my $libname = $lib->[0];
+    my $start = $lib->[1];
+    my $finish = $lib->[2];
+    my $offset = $lib->[3];
+
+    # Get list of pcs that belong in this library.
+    my $contained = [];
+    my ($start_pc_index, $finish_pc_index);
+    # Find smallest finish_pc_index such that $finish < $pc[$finish_pc_index].
+    for ($finish_pc_index = $#pcs + 1; $finish_pc_index > 0;
+         $finish_pc_index--) {
+      last if $pcs[$finish_pc_index - 1] le $finish;
+    }
+    # Find smallest start_pc_index such that $start <= $pc[$start_pc_index].
+    for ($start_pc_index = $finish_pc_index; $start_pc_index > 0;
+         $start_pc_index--) {
+      last if $pcs[$start_pc_index - 1] lt $start;
+    }
+    # This keeps PC values higher than $pc[$finish_pc_index] in @pcs,
+    # in case there are overlaps in libraries and the main binary.
+    @{$contained} = splice(@pcs, $start_pc_index,
+                           $finish_pc_index - $start_pc_index);
+    # Map to symbols
+    MapToSymbols($libname, AddressSub($start, $offset), $contained, $symbols);
+  }
+
+  return $symbols;
+}
+
+# Map list of PC values to symbols for a given image
+sub MapToSymbols {
+  my $image = shift;
+  my $offset = shift;
+  my $pclist = shift;
+  my $symbols = shift;
+
+  my $debug = 0;
+
+  # For libc (and other) libraries, the copy in /usr/lib/debug contains debugging symbols
+  my $debugging = DebuggingLibrary($image);
+  if ($debugging) {
+    $image = $debugging;
+  }
+
+  # Ignore empty binaries
+  if ($#{$pclist} < 0) { return; }
+
+  # Figure out the addr2line command to use
+  my $addr2line = $obj_tool_map{"addr2line"};
+  my $cmd = ShellEscape($addr2line, "-f", "-C", "-e", $image);
+  if (exists $obj_tool_map{"addr2line_pdb"}) {
+    $addr2line = $obj_tool_map{"addr2line_pdb"};
+    $cmd = ShellEscape($addr2line, "--demangle", "-f", "-C", "-e", $image);
+  }
+
+  # If "addr2line" isn't installed on the system at all, just use
+  # nm to get what info we can (function names, but not line numbers).
+  if (system(ShellEscape($addr2line, "--help") . " >$dev_null 2>&1") != 0) {
+    MapSymbolsWithNM($image, $offset, $pclist, $symbols);
+    return;
+  }
+
+  # "addr2line -i" can produce a variable number of lines per input
+  # address, with no separator that allows us to tell when data for
+  # the next address starts.  So we find the address for a special
+  # symbol (_fini) and interleave this address between all real
+  # addresses passed to addr2line.  The name of this special symbol
+  # can then be used as a separator.
+  $sep_address = undef;  # May be filled in by MapSymbolsWithNM()
+  my $nm_symbols = {};
+  MapSymbolsWithNM($image, $offset, $pclist, $nm_symbols);
+  if (defined($sep_address)) {
+    # Only add " -i" to addr2line if the binary supports it.
+    # addr2line --help returns 0, but not if it sees an unknown flag first.
+    if (system("$cmd -i --help >$dev_null 2>&1") == 0) {
+      $cmd .= " -i";
+    } else {
+      $sep_address = undef;   # no need for sep_address if we don't support -i
+    }
+  }
+
+  # Make file with all PC values with intervening 'sep_address' so
+  # that we can reliably detect the end of inlined function list
+  open(ADDRESSES, ">$main::tmpfile_sym") || error("$main::tmpfile_sym: $!\n");
+  if ($debug) { print("---- $image ---\n"); }
+  for (my $i = 0; $i <= $#{$pclist}; $i++) {
+    # addr2line always reads hex addresses, and does not need '0x' prefix.
+    if ($debug) { printf STDERR ("%s\n", $pclist->[$i]); }
+    printf ADDRESSES ("%s\n", AddressSub($pclist->[$i], $offset));
+    if (defined($sep_address)) {
+      printf ADDRESSES ("%s\n", $sep_address);
+    }
+  }
+  close(ADDRESSES);
+  if ($debug) {
+    print("----\n");
+    system("cat", $main::tmpfile_sym);
+    print("---- $cmd ---\n");
+    system("$cmd < " . ShellEscape($main::tmpfile_sym));
+    print("----\n");
+  }
+
+  open(SYMBOLS, "$cmd <" . ShellEscape($main::tmpfile_sym) . " |")
+      || error("$cmd: $!\n");
+  my $count = 0;   # Index in pclist
+  while () {
+    # Read fullfunction and filelineinfo from next pair of lines
+    s/\r?\n$//g;
+    my $fullfunction = $_;
+    $_ = ;
+    s/\r?\n$//g;
+    my $filelinenum = $_;
+
+    if (defined($sep_address) && $fullfunction eq $sep_symbol) {
+      # Terminating marker for data for this address
+      $count++;
+      next;
+    }
+
+    $filelinenum =~ s|\\|/|g; # turn windows-style paths into unix-style paths
+
+    # Remove discriminator markers as this comes after the line number and
+    # confuses the rest of this script.
+    $filelinenum =~ s/ \(discriminator \d+\)$//;
+    # Convert unknown line numbers into line 0.
+    $filelinenum =~ s/:\?$/:0/;
+
+    my $pcstr = $pclist->[$count];
+    my $function = ShortFunctionName($fullfunction);
+    my $nms = $nm_symbols->{$pcstr};
+    if (defined($nms)) {
+      if ($fullfunction eq '??') {
+        # nm found a symbol for us.
+        $function = $nms->[0];
+        $fullfunction = $nms->[2];
+      } else {
+	# MapSymbolsWithNM tags each routine with its starting address,
+	# useful in case the image has multiple occurrences of this
+	# routine.  (It uses a syntax that resembles template paramters,
+	# that are automatically stripped out by ShortFunctionName().)
+	# addr2line does not provide the same information.  So we check
+	# if nm disambiguated our symbol, and if so take the annotated
+	# (nm) version of the routine-name.  TODO(csilvers): this won't
+	# catch overloaded, inlined symbols, which nm doesn't see.
+	# Better would be to do a check similar to nm's, in this fn.
+	if ($nms->[2] =~ m/^\Q$function\E/) {  # sanity check it's the right fn
+	  $function = $nms->[0];
+	  $fullfunction = $nms->[2];
+	}
+      }
+    }
+    
+    # Prepend to accumulated symbols for pcstr
+    # (so that caller comes before callee)
+    my $sym = $symbols->{$pcstr};
+    if (!defined($sym)) {
+      $sym = [];
+      $symbols->{$pcstr} = $sym;
+    }
+    unshift(@{$sym}, $function, $filelinenum, $fullfunction);
+    if ($debug) { printf STDERR ("%s => [%s]\n", $pcstr, join(" ", @{$sym})); }
+    if (!defined($sep_address)) {
+      # Inlining is off, so this entry ends immediately
+      $count++;
+    }
+  }
+  close(SYMBOLS);
+}
+
+# Use nm to map the list of referenced PCs to symbols.  Return true iff we
+# are able to read procedure information via nm.
+sub MapSymbolsWithNM {
+  my $image = shift;
+  my $offset = shift;
+  my $pclist = shift;
+  my $symbols = shift;
+
+  # Get nm output sorted by increasing address
+  my $symbol_table = GetProcedureBoundaries($image, ".");
+  if (!%{$symbol_table}) {
+    return 0;
+  }
+  # Start addresses are already the right length (8 or 16 hex digits).
+  my @names = sort { $symbol_table->{$a}->[0] cmp $symbol_table->{$b}->[0] }
+    keys(%{$symbol_table});
+
+  if ($#names < 0) {
+    # No symbols: just use addresses
+    foreach my $pc (@{$pclist}) {
+      my $pcstr = "0x" . $pc;
+      $symbols->{$pc} = [$pcstr, "?", $pcstr];
+    }
+    return 0;
+  }
+
+  # Sort addresses so we can do a join against nm output
+  my $index = 0;
+  my $fullname = $names[0];
+  my $name = ShortFunctionName($fullname);
+  foreach my $pc (sort { $a cmp $b } @{$pclist}) {
+    # Adjust for mapped offset
+    my $mpc = AddressSub($pc, $offset);
+    while (($index < $#names) && ($mpc ge $symbol_table->{$fullname}->[1])){
+      $index++;
+      $fullname = $names[$index];
+      $name = ShortFunctionName($fullname);
+    }
+    if ($mpc lt $symbol_table->{$fullname}->[1]) {
+      $symbols->{$pc} = [$name, "?", $fullname];
+    } else {
+      my $pcstr = "0x" . $pc;
+      $symbols->{$pc} = [$pcstr, "?", $pcstr];
+    }
+  }
+  return 1;
+}
+
+sub ShortFunctionName {
+  my $function = shift;
+  while ($function =~ s/\([^()]*\)(\s*const)?//g) { }   # Argument types
+  $function =~ s/<[0-9a-f]*>$//g;                # Remove Address
+  if (!$main::opt_no_strip_temp) {
+      while ($function =~ s/<[^<>]*>//g)  { }   # Remove template arguments
+  }
+  $function =~ s/^.*\s+(\w+::)/$1/;          # Remove leading type
+  return $function;
+}
+
+# Trim overly long symbols found in disassembler output
+sub CleanDisassembly {
+  my $d = shift;
+  while ($d =~ s/\([^()%]*\)(\s*const)?//g) { } # Argument types, not (%rax)
+  while ($d =~ s/(\w+)<[^<>]*>/$1/g)  { }       # Remove template arguments
+  return $d;
+}
+
+# Clean file name for display
+sub CleanFileName {
+  my ($f) = @_;
+  $f =~ s|^/proc/self/cwd/||;
+  $f =~ s|^\./||;
+  return $f;
+}
+
+# Make address relative to section and clean up for display
+sub UnparseAddress {
+  my ($offset, $address) = @_;
+  $address = AddressSub($address, $offset);
+  $address =~ s/^0x//;
+  $address =~ s/^0*//;
+  return $address;
+}
+
+##### Miscellaneous #####
+
+# Find the right versions of the above object tools to use.  The
+# argument is the program file being analyzed, and should be an ELF
+# 32-bit or ELF 64-bit executable file.  The location of the tools
+# is determined by considering the following options in this order:
+#   1) --tools option, if set
+#   2) PPROF_TOOLS environment variable, if set
+#   3) the environment
+sub ConfigureObjTools {
+  my $prog_file = shift;
+
+  # Check for the existence of $prog_file because /usr/bin/file does not
+  # predictably return error status in prod.
+  (-e $prog_file)  || error("$prog_file does not exist.\n");
+
+  my $file_type = undef;
+  if (-e "/usr/bin/file") {
+    # Follow symlinks (at least for systems where "file" supports that).
+    my $escaped_prog_file = ShellEscape($prog_file);
+    $file_type = `/usr/bin/file -L $escaped_prog_file 2>$dev_null ||
+                  /usr/bin/file $escaped_prog_file`;
+  } elsif ($^O == "MSWin32") {
+    $file_type = "MS Windows";
+  } else {
+    print STDERR "WARNING: Can't determine the file type of $prog_file";
+  }
+
+  if ($file_type =~ /64-bit/) {
+    # Change $address_length to 16 if the program file is ELF 64-bit.
+    # We can't detect this from many (most?) heap or lock contention
+    # profiles, since the actual addresses referenced are generally in low
+    # memory even for 64-bit programs.
+    $address_length = 16;
+  }
+
+  if ($file_type =~ /MS Windows/) {
+    # For windows, we provide a version of nm and addr2line as part of
+    # the opensource release, which is capable of parsing
+    # Windows-style PDB executables.  It should live in the path, or
+    # in the same directory as pprof.
+    $obj_tool_map{"nm_pdb"} = "nm-pdb";
+    $obj_tool_map{"addr2line_pdb"} = "addr2line-pdb";
+  }
+
+  if ($file_type =~ /Mach-O/) {
+    # OS X uses otool to examine Mach-O files, rather than objdump.
+    $obj_tool_map{"otool"} = "otool";
+    $obj_tool_map{"addr2line"} = "false";  # no addr2line
+    $obj_tool_map{"objdump"} = "false";  # no objdump
+  }
+
+  # Go fill in %obj_tool_map with the pathnames to use:
+  foreach my $tool (keys %obj_tool_map) {
+    $obj_tool_map{$tool} = ConfigureTool($obj_tool_map{$tool});
+  }
+}
+
+# Returns the path of a caller-specified object tool.  If --tools or
+# PPROF_TOOLS are specified, then returns the full path to the tool
+# with that prefix.  Otherwise, returns the path unmodified (which
+# means we will look for it on PATH).
+sub ConfigureTool {
+  my $tool = shift;
+  my $path;
+
+  # --tools (or $PPROF_TOOLS) is a comma separated list, where each
+  # item is either a) a pathname prefix, or b) a map of the form
+  # :.  First we look for an entry of type (b) for our
+  # tool.  If one is found, we use it.  Otherwise, we consider all the
+  # pathname prefixes in turn, until one yields an existing file.  If
+  # none does, we use a default path.
+  my $tools = $main::opt_tools || $ENV{"PPROF_TOOLS"} || "";
+  if ($tools =~ m/(,|^)\Q$tool\E:([^,]*)/) {
+    $path = $2;
+    # TODO(csilvers): sanity-check that $path exists?  Hard if it's relative.
+  } elsif ($tools ne '') {
+    foreach my $prefix (split(',', $tools)) {
+      next if ($prefix =~ /:/);    # ignore "tool:fullpath" entries in the list
+      if (-x $prefix . $tool) {
+        $path = $prefix . $tool;
+        last;
+      }
+    }
+    if (!$path) {
+      error("No '$tool' found with prefix specified by " .
+            "--tools (or \$PPROF_TOOLS) '$tools'\n");
+    }
+  } else {
+    # ... otherwise use the version that exists in the same directory as
+    # pprof.  If there's nothing there, use $PATH.
+    $0 =~ m,[^/]*$,;     # this is everything after the last slash
+    my $dirname = $`;    # this is everything up to and including the last slash
+    if (-x "$dirname$tool") {
+      $path = "$dirname$tool";
+    } else { 
+      $path = $tool;
+    }
+  }
+  if ($main::opt_debug) { print STDERR "Using '$path' for '$tool'.\n"; }
+  return $path;
+}
+
+sub ShellEscape {
+  my @escaped_words = ();
+  foreach my $word (@_) {
+    my $escaped_word = $word;
+    if ($word =~ m![^a-zA-Z0-9/.,_=-]!) {  # check for anything not in whitelist
+      $escaped_word =~ s/'/'\\''/;
+      $escaped_word = "'$escaped_word'";
+    }
+    push(@escaped_words, $escaped_word);
+  }
+  return join(" ", @escaped_words);
+}
+
+sub cleanup {
+  unlink($main::tmpfile_sym);
+  unlink(keys %main::tempnames);
+
+  # We leave any collected profiles in $HOME/pprof in case the user wants
+  # to look at them later.  We print a message informing them of this.
+  if ((scalar(@main::profile_files) > 0) &&
+      defined($main::collected_profile)) {
+    if (scalar(@main::profile_files) == 1) {
+      print STDERR "Dynamically gathered profile is in $main::collected_profile\n";
+    }
+    print STDERR "If you want to investigate this profile further, you can do:\n";
+    print STDERR "\n";
+    print STDERR "  $0 \\\n";
+    print STDERR "    $main::prog \\\n";
+    print STDERR "    $main::collected_profile\n";
+    print STDERR "\n";
+  }
+}
+
+sub sighandler {
+  cleanup();
+  exit(1);
+}
+
+sub error {
+  my $msg = shift;
+  print STDERR $msg;
+  cleanup();
+  exit(1);
+}
+
+
+# Run $nm_command and get all the resulting procedure boundaries whose
+# names match "$regexp" and returns them in a hashtable mapping from
+# procedure name to a two-element vector of [start address, end address]
+sub GetProcedureBoundariesViaNm {
+  my $escaped_nm_command = shift;    # shell-escaped
+  my $regexp = shift;
+  my $image = shift;
+
+  my $symbol_table = {};
+  open(NM, "$escaped_nm_command |") || error("$escaped_nm_command: $!\n");
+  my $last_start = "0";
+  my $routine = "";
+  while () {
+    s/\r//g;         # turn windows-looking lines into unix-looking lines
+    if (m/^\s*([0-9a-f]+) (.) (..*)/) {
+      my $start_val = $1;
+      my $type = $2;
+      my $this_routine = $3;
+
+      # It's possible for two symbols to share the same address, if
+      # one is a zero-length variable (like __start_google_malloc) or
+      # one symbol is a weak alias to another (like __libc_malloc).
+      # In such cases, we want to ignore all values except for the
+      # actual symbol, which in nm-speak has type "T".  The logic
+      # below does this, though it's a bit tricky: what happens when
+      # we have a series of lines with the same address, is the first
+      # one gets queued up to be processed.  However, it won't
+      # *actually* be processed until later, when we read a line with
+      # a different address.  That means that as long as we're reading
+      # lines with the same address, we have a chance to replace that
+      # item in the queue, which we do whenever we see a 'T' entry --
+      # that is, a line with type 'T'.  If we never see a 'T' entry,
+      # we'll just go ahead and process the first entry (which never
+      # got touched in the queue), and ignore the others.
+      if ($start_val eq $last_start && $type =~ /t/i) {
+        # We are the 'T' symbol at this address, replace previous symbol.
+        $routine = $this_routine;
+        next;
+      } elsif ($start_val eq $last_start) {
+        # We're not the 'T' symbol at this address, so ignore us.
+        next;
+      }
+
+      if ($this_routine eq $sep_symbol) {
+        $sep_address = HexExtend($start_val);
+      }
+
+      # Tag this routine with the starting address in case the image
+      # has multiple occurrences of this routine.  We use a syntax
+      # that resembles template paramters that are automatically
+      # stripped out by ShortFunctionName()
+      $this_routine .= "<$start_val>";
+
+      if (defined($routine) && $routine =~ m/$regexp/) {
+        $symbol_table->{$routine} = [HexExtend($last_start),
+                                     HexExtend($start_val)];
+      }
+      $last_start = $start_val;
+      $routine = $this_routine;
+    } elsif (m/^Loaded image name: (.+)/) {
+      # The win32 nm workalike emits information about the binary it is using.
+      if ($main::opt_debug) { print STDERR "Using Image $1\n"; }
+    } elsif (m/^PDB file name: (.+)/) {
+      # The win32 nm workalike emits information about the pdb it is using.
+      if ($main::opt_debug) { print STDERR "Using PDB $1\n"; }
+    }
+  }
+  close(NM);
+  # Handle the last line in the nm output.  Unfortunately, we don't know
+  # how big this last symbol is, because we don't know how big the file
+  # is.  For now, we just give it a size of 0.
+  # TODO(csilvers): do better here.
+  if (defined($routine) && $routine =~ m/$regexp/) {
+    $symbol_table->{$routine} = [HexExtend($last_start),
+                                 HexExtend($last_start)];
+  }
+
+  # Verify if addr2line can find the $sep_symbol.  If not, we use objdump
+  # to find the address for the $sep_symbol on code section which addr2line
+  # can find.
+  if (defined($sep_address)){
+    my $start_val = $sep_address;
+    my $addr2line = $obj_tool_map{"addr2line"};
+    my $cmd = ShellEscape($addr2line, "-f", "-C", "-e", $image, "-i");
+    open(FINI, "echo $start_val | $cmd  |")
+         || error("echo $start_val | $cmd: $!\n");
+    $_ = ;
+    s/\r?\n$//g;
+    my $fini = $_;
+    close(FINI);
+    if ($fini ne $sep_symbol){
+      my $objdump =  $obj_tool_map{"objdump"};
+      $cmd = ShellEscape($objdump, "-d", $image);
+      my $grep = ShellEscape("grep", $sep_symbol);
+      my $tail = ShellEscape("tail", "-n", "1");
+      open(FINI, "$cmd | $grep | $tail |")
+           || error("$cmd | $grep | $tail: $!\n");
+      s/\r//g; # turn windows-looking lines into unix-looking lines
+      my $data = ;
+      if (defined($data)){
+        ($start_val, $fini) = split(/ $dev_null 2>&1";
+  if (system(ShellEscape($nm, "--demangle", $image) . $to_devnull) == 0) {
+    # In this mode, we do "nm --demangle "
+    $demangle_flag = "--demangle";
+    $cppfilt_flag = "";
+  } elsif (system(ShellEscape($cppfilt, $image) . $to_devnull) == 0) {
+    # In this mode, we do "nm  | c++filt"
+    $cppfilt_flag = " | " . ShellEscape($cppfilt);
+  };
+  my $flatten_flag = "";
+  if (system(ShellEscape($nm, "-f", $image) . $to_devnull) == 0) {
+    $flatten_flag = "-f";
+  }
+
+  # Finally, in the case $imagie isn't a debug library, we try again with
+  # -D to at least get *exported* symbols.  If we can't use --demangle,
+  # we use c++filt instead, if it exists on this system.
+  my @nm_commands = (ShellEscape($nm, "-n", $flatten_flag, $demangle_flag,
+                                 $image) . " 2>$dev_null $cppfilt_flag",
+                     ShellEscape($nm, "-D", "-n", $flatten_flag, $demangle_flag,
+                                 $image) . " 2>$dev_null $cppfilt_flag",
+                     # 6nm is for Go binaries
+                     ShellEscape("6nm", "$image") . " 2>$dev_null | sort",
+                     );
+
+  # If the executable is an MS Windows PDB-format executable, we'll
+  # have set up obj_tool_map("nm_pdb").  In this case, we actually
+  # want to use both unix nm and windows-specific nm_pdb, since
+  # PDB-format executables can apparently include dwarf .o files.
+  if (exists $obj_tool_map{"nm_pdb"}) {
+    push(@nm_commands,
+         ShellEscape($obj_tool_map{"nm_pdb"}, "--demangle", $image)
+         . " 2>$dev_null");
+  }
+
+  foreach my $nm_command (@nm_commands) {
+    my $symbol_table = GetProcedureBoundariesViaNm($nm_command, $regexp, $image);
+    return $symbol_table if (%{$symbol_table});
+  }
+  my $symbol_table = {};
+  return $symbol_table;
+}
+
+
+# The test vectors for AddressAdd/Sub/Inc are 8-16-nibble hex strings.
+# To make them more readable, we add underscores at interesting places.
+# This routine removes the underscores, producing the canonical representation
+# used by pprof to represent addresses, particularly in the tested routines.
+sub CanonicalHex {
+  my $arg = shift;
+  return join '', (split '_',$arg);
+}
+
+
+# Unit test for AddressAdd:
+sub AddressAddUnitTest {
+  my $test_data_8 = shift;
+  my $test_data_16 = shift;
+  my $error_count = 0;
+  my $fail_count = 0;
+  my $pass_count = 0;
+  # print STDERR "AddressAddUnitTest: ", 1+$#{$test_data_8}, " tests\n";
+
+  # First a few 8-nibble addresses.  Note that this implementation uses
+  # plain old arithmetic, so a quick sanity check along with verifying what
+  # happens to overflow (we want it to wrap):
+  $address_length = 8;
+  foreach my $row (@{$test_data_8}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressAdd ($row->[0], $row->[1]);
+    if ($sum ne $row->[2]) {
+      printf STDERR "ERROR: %s != %s + %s = %s\n", $sum,
+             $row->[0], $row->[1], $row->[2];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressAdd 32-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count = $fail_count;
+  $fail_count = 0;
+  $pass_count = 0;
+
+  # Now 16-nibble addresses.
+  $address_length = 16;
+  foreach my $row (@{$test_data_16}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressAdd (CanonicalHex($row->[0]), CanonicalHex($row->[1]));
+    my $expected = join '', (split '_',$row->[2]);
+    if ($sum ne CanonicalHex($row->[2])) {
+      printf STDERR "ERROR: %s != %s + %s = %s\n", $sum,
+             $row->[0], $row->[1], $row->[2];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressAdd 64-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count += $fail_count;
+
+  return $error_count;
+}
+
+
+# Unit test for AddressSub:
+sub AddressSubUnitTest {
+  my $test_data_8 = shift;
+  my $test_data_16 = shift;
+  my $error_count = 0;
+  my $fail_count = 0;
+  my $pass_count = 0;
+  # print STDERR "AddressSubUnitTest: ", 1+$#{$test_data_8}, " tests\n";
+
+  # First a few 8-nibble addresses.  Note that this implementation uses
+  # plain old arithmetic, so a quick sanity check along with verifying what
+  # happens to overflow (we want it to wrap):
+  $address_length = 8;
+  foreach my $row (@{$test_data_8}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressSub ($row->[0], $row->[1]);
+    if ($sum ne $row->[3]) {
+      printf STDERR "ERROR: %s != %s - %s = %s\n", $sum,
+             $row->[0], $row->[1], $row->[3];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressSub 32-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count = $fail_count;
+  $fail_count = 0;
+  $pass_count = 0;
+
+  # Now 16-nibble addresses.
+  $address_length = 16;
+  foreach my $row (@{$test_data_16}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressSub (CanonicalHex($row->[0]), CanonicalHex($row->[1]));
+    if ($sum ne CanonicalHex($row->[3])) {
+      printf STDERR "ERROR: %s != %s - %s = %s\n", $sum,
+             $row->[0], $row->[1], $row->[3];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressSub 64-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count += $fail_count;
+
+  return $error_count;
+}
+
+
+# Unit test for AddressInc:
+sub AddressIncUnitTest {
+  my $test_data_8 = shift;
+  my $test_data_16 = shift;
+  my $error_count = 0;
+  my $fail_count = 0;
+  my $pass_count = 0;
+  # print STDERR "AddressIncUnitTest: ", 1+$#{$test_data_8}, " tests\n";
+
+  # First a few 8-nibble addresses.  Note that this implementation uses
+  # plain old arithmetic, so a quick sanity check along with verifying what
+  # happens to overflow (we want it to wrap):
+  $address_length = 8;
+  foreach my $row (@{$test_data_8}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressInc ($row->[0]);
+    if ($sum ne $row->[4]) {
+      printf STDERR "ERROR: %s != %s + 1 = %s\n", $sum,
+             $row->[0], $row->[4];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressInc 32-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count = $fail_count;
+  $fail_count = 0;
+  $pass_count = 0;
+
+  # Now 16-nibble addresses.
+  $address_length = 16;
+  foreach my $row (@{$test_data_16}) {
+    if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; }
+    my $sum = AddressInc (CanonicalHex($row->[0]));
+    if ($sum ne CanonicalHex($row->[4])) {
+      printf STDERR "ERROR: %s != %s + 1 = %s\n", $sum,
+             $row->[0], $row->[4];
+      ++$fail_count;
+    } else {
+      ++$pass_count;
+    }
+  }
+  printf STDERR "AddressInc 64-bit tests: %d passes, %d failures\n",
+         $pass_count, $fail_count;
+  $error_count += $fail_count;
+
+  return $error_count;
+}
+
+
+# Driver for unit tests.
+# Currently just the address add/subtract/increment routines for 64-bit.
+sub RunUnitTests {
+  my $error_count = 0;
+
+  # This is a list of tuples [a, b, a+b, a-b, a+1]
+  my $unit_test_data_8 = [
+    [qw(aaaaaaaa 50505050 fafafafa 5a5a5a5a aaaaaaab)],
+    [qw(50505050 aaaaaaaa fafafafa a5a5a5a6 50505051)],
+    [qw(ffffffff aaaaaaaa aaaaaaa9 55555555 00000000)],
+    [qw(00000001 ffffffff 00000000 00000002 00000002)],
+    [qw(00000001 fffffff0 fffffff1 00000011 00000002)],
+  ];
+  my $unit_test_data_16 = [
+    # The implementation handles data in 7-nibble chunks, so those are the
+    # interesting boundaries.
+    [qw(aaaaaaaa 50505050
+        00_000000f_afafafa 00_0000005_a5a5a5a 00_000000a_aaaaaab)],
+    [qw(50505050 aaaaaaaa
+        00_000000f_afafafa ff_ffffffa_5a5a5a6 00_0000005_0505051)],
+    [qw(ffffffff aaaaaaaa
+        00_000001a_aaaaaa9 00_0000005_5555555 00_0000010_0000000)],
+    [qw(00000001 ffffffff
+        00_0000010_0000000 ff_ffffff0_0000002 00_0000000_0000002)],
+    [qw(00000001 fffffff0
+        00_000000f_ffffff1 ff_ffffff0_0000011 00_0000000_0000002)],
+
+    [qw(00_a00000a_aaaaaaa 50505050
+        00_a00000f_afafafa 00_a000005_a5a5a5a 00_a00000a_aaaaaab)],
+    [qw(0f_fff0005_0505050 aaaaaaaa
+        0f_fff000f_afafafa 0f_ffefffa_5a5a5a6 0f_fff0005_0505051)],
+    [qw(00_000000f_fffffff 01_800000a_aaaaaaa
+        01_800001a_aaaaaa9 fe_8000005_5555555 00_0000010_0000000)],
+    [qw(00_0000000_0000001 ff_fffffff_fffffff
+        00_0000000_0000000 00_0000000_0000002 00_0000000_0000002)],
+    [qw(00_0000000_0000001 ff_fffffff_ffffff0
+        ff_fffffff_ffffff1 00_0000000_0000011 00_0000000_0000002)],
+  ];
+
+  $error_count += AddressAddUnitTest($unit_test_data_8, $unit_test_data_16);
+  $error_count += AddressSubUnitTest($unit_test_data_8, $unit_test_data_16);
+  $error_count += AddressIncUnitTest($unit_test_data_8, $unit_test_data_16);
+  if ($error_count > 0) {
+    print STDERR $error_count, " errors: FAILED\n";
+  } else {
+    print STDERR "PASS\n";
+  }
+  exit ($error_count);
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/profile-handler.cc b/trunk/3rdparty/gperftools-2-fit/src/profile-handler.cc
new file mode 100644
index 000000000..0db17bbea
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/profile-handler.cc
@@ -0,0 +1,599 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//         Nabeel Mian
+//
+// Implements management of profile timers and the corresponding signal handler.
+
+#include "config.h"
+#include "profile-handler.h"
+
+#if !(defined(__CYGWIN__) || defined(__CYGWIN32__))
+
+#include 
+#include 
+#include 
+
+#include 
+#include 
+
+#if HAVE_LINUX_SIGEV_THREAD_ID
+// for timer_{create,settime} and associated typedefs & constants
+#include 
+// for sigevent
+#include 
+// for SYS_gettid
+#include 
+
+// for perftools_pthread_key_create
+#include "maybe_threads.h"
+#endif
+
+#include "base/dynamic_annotations.h"
+#include "base/googleinit.h"
+#include "base/logging.h"
+#include "base/spinlock.h"
+#include "maybe_threads.h"
+
+// Some Linux systems don't have sigev_notify_thread_id defined in
+// signal.h (despite having SIGEV_THREAD_ID defined) and also lack
+// working linux/signal.h. So lets workaround. Note, we know that at
+// least on Linux sigev_notify_thread_id is macro.
+//
+// See https://sourceware.org/bugzilla/show_bug.cgi?id=27417 and
+// https://bugzilla.kernel.org/show_bug.cgi?id=200081
+//
+#if __linux__ && HAVE_LINUX_SIGEV_THREAD_ID && !defined(sigev_notify_thread_id)
+#define sigev_notify_thread_id _sigev_un._tid
+#endif
+
+using std::list;
+using std::string;
+
+// This structure is used by ProfileHandlerRegisterCallback and
+// ProfileHandlerUnregisterCallback as a handle to a registered callback.
+struct ProfileHandlerToken {
+  // Sets the callback and associated arg.
+  ProfileHandlerToken(ProfileHandlerCallback cb, void* cb_arg)
+      : callback(cb),
+        callback_arg(cb_arg) {
+  }
+
+  // Callback function to be invoked on receiving a profile timer interrupt.
+  ProfileHandlerCallback callback;
+  // Argument for the callback function.
+  void* callback_arg;
+};
+
+// Blocks a signal from being delivered to the current thread while the object
+// is alive. Unblocks it upon destruction.
+class ScopedSignalBlocker {
+ public:
+  ScopedSignalBlocker(int signo) {
+    sigemptyset(&sig_set_);
+    sigaddset(&sig_set_, signo);
+    RAW_CHECK(sigprocmask(SIG_BLOCK, &sig_set_, NULL) == 0,
+              "sigprocmask (block)");
+  }
+  ~ScopedSignalBlocker() {
+    RAW_CHECK(sigprocmask(SIG_UNBLOCK, &sig_set_, NULL) == 0,
+              "sigprocmask (unblock)");
+  }
+
+ private:
+  sigset_t sig_set_;
+};
+
+// This class manages profile timers and associated signal handler. This is a
+// a singleton.
+class ProfileHandler {
+ public:
+  // Registers the current thread with the profile handler.
+  void RegisterThread();
+
+  // Registers a callback routine to receive profile timer ticks. The returned
+  // token is to be used when unregistering this callback and must not be
+  // deleted by the caller.
+  ProfileHandlerToken* RegisterCallback(ProfileHandlerCallback callback,
+                                        void* callback_arg);
+
+  // Unregisters a previously registered callback. Expects the token returned
+  // by the corresponding RegisterCallback routine.
+  void UnregisterCallback(ProfileHandlerToken* token)
+      NO_THREAD_SAFETY_ANALYSIS;
+
+  // Unregisters all the callbacks and stops the timer(s).
+  void Reset();
+
+  // Gets the current state of profile handler.
+  void GetState(ProfileHandlerState* state);
+
+  // Initializes and returns the ProfileHandler singleton.
+  static ProfileHandler* Instance();
+
+ private:
+  ProfileHandler();
+  ~ProfileHandler();
+
+  // Largest allowed frequency.
+  static const int32 kMaxFrequency = 4000;
+  // Default frequency.
+  static const int32 kDefaultFrequency = 100;
+
+  // ProfileHandler singleton.
+  static ProfileHandler* instance_;
+
+  // pthread_once_t for one time initialization of ProfileHandler singleton.
+  static pthread_once_t once_;
+
+  // Initializes the ProfileHandler singleton via GoogleOnceInit.
+  static void Init();
+
+  // Timer state as configured previously.
+  bool timer_running_;
+
+  // The number of profiling signal interrupts received.
+  int64 interrupts_ GUARDED_BY(signal_lock_);
+
+  // Profiling signal interrupt frequency, read-only after construction.
+  int32 frequency_;
+
+  // ITIMER_PROF (which uses SIGPROF), or ITIMER_REAL (which uses SIGALRM).
+  // Translated into an equivalent choice of clock if per_thread_timer_enabled_
+  // is true.
+  int timer_type_;
+
+  // Signal number for timer signal.
+  int signal_number_;
+
+  // Counts the number of callbacks registered.
+  int32 callback_count_ GUARDED_BY(control_lock_);
+
+  // Is profiling allowed at all?
+  bool allowed_;
+
+  // Must be false if HAVE_LINUX_SIGEV_THREAD_ID is not defined.
+  bool per_thread_timer_enabled_;
+
+#ifdef HAVE_LINUX_SIGEV_THREAD_ID
+  // this is used to destroy per-thread profiling timers on thread
+  // termination
+  pthread_key_t thread_timer_key;
+#endif
+
+  // This lock serializes the registration of threads and protects the
+  // callbacks_ list below.
+  // Locking order:
+  // In the context of a signal handler, acquire signal_lock_ to walk the
+  // callback list. Otherwise, acquire control_lock_, disable the signal
+  // handler and then acquire signal_lock_.
+  SpinLock control_lock_ ACQUIRED_BEFORE(signal_lock_);
+  SpinLock signal_lock_;
+
+  // Holds the list of registered callbacks. We expect the list to be pretty
+  // small. Currently, the cpu profiler (base/profiler) and thread module
+  // (base/thread.h) are the only two components registering callbacks.
+  // Following are the locking requirements for callbacks_:
+  // For read-write access outside the SIGPROF handler:
+  //  - Acquire control_lock_
+  //  - Disable SIGPROF handler.
+  //  - Acquire signal_lock_
+  // For read-only access in the context of SIGPROF handler
+  // (Read-write access is *not allowed* in the SIGPROF handler)
+  //  - Acquire signal_lock_
+  // For read-only access outside SIGPROF handler:
+  //  - Acquire control_lock_
+  typedef list CallbackList;
+  typedef CallbackList::iterator CallbackIterator;
+  CallbackList callbacks_ GUARDED_BY(signal_lock_);
+
+  // Starts or stops the interval timer.
+  // Will ignore any requests to enable or disable when
+  // per_thread_timer_enabled_ is true.
+  void UpdateTimer(bool enable) EXCLUSIVE_LOCKS_REQUIRED(signal_lock_);
+
+  // Returns true if the handler is not being used by something else.
+  // This checks the kernel's signal handler table.
+  bool IsSignalHandlerAvailable();
+
+  // Signal handler. Iterates over and calls all the registered callbacks.
+  static void SignalHandler(int sig, siginfo_t* sinfo, void* ucontext);
+
+  DISALLOW_COPY_AND_ASSIGN(ProfileHandler);
+};
+
+ProfileHandler* ProfileHandler::instance_ = NULL;
+pthread_once_t ProfileHandler::once_ = PTHREAD_ONCE_INIT;
+
+const int32 ProfileHandler::kMaxFrequency;
+const int32 ProfileHandler::kDefaultFrequency;
+
+// If we are LD_PRELOAD-ed against a non-pthreads app, then these functions
+// won't be defined.  We declare them here, for that case (with weak linkage)
+// which will cause the non-definition to resolve to NULL.  We can then check
+// for NULL or not in Instance.
+extern "C" {
+int pthread_once(pthread_once_t *, void (*)(void)) ATTRIBUTE_WEAK;
+int pthread_kill(pthread_t thread_id, int signo) ATTRIBUTE_WEAK;
+
+#if HAVE_LINUX_SIGEV_THREAD_ID
+int timer_create(clockid_t clockid, struct sigevent* evp,
+                 timer_t* timerid) ATTRIBUTE_WEAK;
+int timer_delete(timer_t timerid) ATTRIBUTE_WEAK;
+int timer_settime(timer_t timerid, int flags, const struct itimerspec* value,
+                  struct itimerspec* ovalue) ATTRIBUTE_WEAK;
+#endif
+}
+
+#if HAVE_LINUX_SIGEV_THREAD_ID
+
+struct timer_id_holder {
+  timer_t timerid;
+  timer_id_holder(timer_t _timerid) : timerid(_timerid) {}
+};
+
+extern "C" {
+  static void ThreadTimerDestructor(void *arg) {
+    if (!arg) {
+      return;
+    }
+    timer_id_holder *holder = static_cast(arg);
+    timer_delete(holder->timerid);
+    delete holder;
+  }
+}
+
+static void CreateThreadTimerKey(pthread_key_t *pkey) {
+  int rv = perftools_pthread_key_create(pkey, ThreadTimerDestructor);
+  if (rv) {
+    RAW_LOG(FATAL, "aborting due to pthread_key_create error: %s", strerror(rv));
+  }
+}
+
+static void StartLinuxThreadTimer(int timer_type, int signal_number,
+                                  int32 frequency, pthread_key_t timer_key) {
+  int rv;
+  struct sigevent sevp;
+  timer_t timerid;
+  struct itimerspec its;
+  memset(&sevp, 0, sizeof(sevp));
+  sevp.sigev_notify = SIGEV_THREAD_ID;
+  sevp.sigev_notify_thread_id = syscall(SYS_gettid);
+  sevp.sigev_signo = signal_number;
+  clockid_t clock = CLOCK_THREAD_CPUTIME_ID;
+  if (timer_type == ITIMER_REAL) {
+    clock = CLOCK_MONOTONIC;
+  }
+  rv = timer_create(clock, &sevp, &timerid);
+  if (rv) {
+    RAW_LOG(FATAL, "aborting due to timer_create error: %s", strerror(errno));
+  }
+
+  timer_id_holder *holder = new timer_id_holder(timerid);
+  rv = perftools_pthread_setspecific(timer_key, holder);
+  if (rv) {
+    RAW_LOG(FATAL, "aborting due to pthread_setspecific error: %s", strerror(rv));
+  }
+
+  its.it_interval.tv_sec = 0;
+  its.it_interval.tv_nsec = 1000000000 / frequency;
+  its.it_value = its.it_interval;
+  rv = timer_settime(timerid, 0, &its, 0);
+  if (rv) {
+    RAW_LOG(FATAL, "aborting due to timer_settime error: %s", strerror(errno));
+  }
+}
+#endif
+
+void ProfileHandler::Init() {
+  instance_ = new ProfileHandler();
+}
+
+ProfileHandler* ProfileHandler::Instance() {
+  if (pthread_once) {
+    pthread_once(&once_, Init);
+  }
+  if (instance_ == NULL) {
+    // This will be true on systems that don't link in pthreads,
+    // including on FreeBSD where pthread_once has a non-zero address
+    // (but doesn't do anything) even when pthreads isn't linked in.
+    Init();
+    assert(instance_ != NULL);
+  }
+  return instance_;
+}
+
+ProfileHandler::ProfileHandler()
+    : timer_running_(false),
+      interrupts_(0),
+      callback_count_(0),
+      allowed_(true),
+      per_thread_timer_enabled_(false) {
+  SpinLockHolder cl(&control_lock_);
+
+  timer_type_ = (getenv("CPUPROFILE_REALTIME") ? ITIMER_REAL : ITIMER_PROF);
+  signal_number_ = (timer_type_ == ITIMER_PROF ? SIGPROF : SIGALRM);
+
+  // Get frequency of interrupts (if specified)
+  char junk;
+  const char* fr = getenv("CPUPROFILE_FREQUENCY");
+  if (fr != NULL && (sscanf(fr, "%u%c", &frequency_, &junk) == 1) &&
+      (frequency_ > 0)) {
+    // Limit to kMaxFrequency
+    frequency_ = (frequency_ > kMaxFrequency) ? kMaxFrequency : frequency_;
+  } else {
+    frequency_ = kDefaultFrequency;
+  }
+
+  if (!allowed_) {
+    return;
+  }
+
+#if HAVE_LINUX_SIGEV_THREAD_ID
+  // Do this early because we might be overriding signal number.
+
+  const char *per_thread = getenv("CPUPROFILE_PER_THREAD_TIMERS");
+  const char *signal_number = getenv("CPUPROFILE_TIMER_SIGNAL");
+
+  if (per_thread || signal_number) {
+    if (timer_create && pthread_once) {
+      CreateThreadTimerKey(&thread_timer_key);
+      per_thread_timer_enabled_ = true;
+      // Override signal number if requested.
+      if (signal_number) {
+        signal_number_ = strtol(signal_number, NULL, 0);
+      }
+    } else {
+      RAW_LOG(INFO,
+              "Ignoring CPUPROFILE_PER_THREAD_TIMERS and\n"
+              " CPUPROFILE_TIMER_SIGNAL due to lack of timer_create().\n"
+              " Preload or link to librt.so for this to work");
+    }
+  }
+#endif
+
+  // If something else is using the signal handler,
+  // assume it has priority over us and stop.
+  if (!IsSignalHandlerAvailable()) {
+    RAW_LOG(INFO, "Disabling profiler because signal %d handler is already in use.",
+            signal_number_);
+    allowed_ = false;
+    return;
+  }
+
+  // Install the signal handler.
+  struct sigaction sa;
+  sa.sa_sigaction = SignalHandler;
+  sa.sa_flags = SA_RESTART | SA_SIGINFO;
+  sigemptyset(&sa.sa_mask);
+  RAW_CHECK(sigaction(signal_number_, &sa, NULL) == 0, "sigprof (enable)");
+}
+
+ProfileHandler::~ProfileHandler() {
+  Reset();
+#ifdef HAVE_LINUX_SIGEV_THREAD_ID
+  if (per_thread_timer_enabled_) {
+    perftools_pthread_key_delete(thread_timer_key);
+  }
+#endif
+}
+
+void ProfileHandler::RegisterThread() {
+  SpinLockHolder cl(&control_lock_);
+
+  if (!allowed_) {
+    return;
+  }
+
+  // Record the thread identifier and start the timer if profiling is on.
+  ScopedSignalBlocker block(signal_number_);
+  SpinLockHolder sl(&signal_lock_);
+#if HAVE_LINUX_SIGEV_THREAD_ID
+  if (per_thread_timer_enabled_) {
+    StartLinuxThreadTimer(timer_type_, signal_number_, frequency_,
+                          thread_timer_key);
+    return;
+  }
+#endif
+  UpdateTimer(callback_count_ > 0);
+}
+
+ProfileHandlerToken* ProfileHandler::RegisterCallback(
+    ProfileHandlerCallback callback, void* callback_arg) {
+
+  ProfileHandlerToken* token = new ProfileHandlerToken(callback, callback_arg);
+
+  SpinLockHolder cl(&control_lock_);
+  {
+    ScopedSignalBlocker block(signal_number_);
+    SpinLockHolder sl(&signal_lock_);
+    callbacks_.push_back(token);
+    ++callback_count_;
+    UpdateTimer(true);
+  }
+  return token;
+}
+
+void ProfileHandler::UnregisterCallback(ProfileHandlerToken* token) {
+  SpinLockHolder cl(&control_lock_);
+  for (CallbackIterator it = callbacks_.begin(); it != callbacks_.end();
+       ++it) {
+    if ((*it) == token) {
+      RAW_CHECK(callback_count_ > 0, "Invalid callback count");
+      {
+        ScopedSignalBlocker block(signal_number_);
+        SpinLockHolder sl(&signal_lock_);
+        delete *it;
+        callbacks_.erase(it);
+        --callback_count_;
+        if (callback_count_ == 0)
+          UpdateTimer(false);
+      }
+      return;
+    }
+  }
+  // Unknown token.
+  RAW_LOG(FATAL, "Invalid token");
+}
+
+void ProfileHandler::Reset() {
+  SpinLockHolder cl(&control_lock_);
+  {
+    ScopedSignalBlocker block(signal_number_);
+    SpinLockHolder sl(&signal_lock_);
+    CallbackIterator it = callbacks_.begin();
+    while (it != callbacks_.end()) {
+      CallbackIterator tmp = it;
+      ++it;
+      delete *tmp;
+      callbacks_.erase(tmp);
+    }
+    callback_count_ = 0;
+    UpdateTimer(false);
+  }
+}
+
+void ProfileHandler::GetState(ProfileHandlerState* state) {
+  SpinLockHolder cl(&control_lock_);
+  {
+    ScopedSignalBlocker block(signal_number_);
+    SpinLockHolder sl(&signal_lock_);  // Protects interrupts_.
+    state->interrupts = interrupts_;
+  }
+  state->frequency = frequency_;
+  state->callback_count = callback_count_;
+  state->allowed = allowed_;
+}
+
+void ProfileHandler::UpdateTimer(bool enable) {
+  if (per_thread_timer_enabled_) {
+    // Ignore any attempts to disable it because that's not supported, and it's
+    // always enabled so enabling is always a NOP.
+    return;
+  }
+
+  if (enable == timer_running_) {
+    return;
+  }
+  timer_running_ = enable;
+
+  struct itimerval timer;
+  static const int kMillion = 1000000;
+  int interval_usec = enable ? kMillion / frequency_ : 0;
+  timer.it_interval.tv_sec = interval_usec / kMillion;
+  timer.it_interval.tv_usec = interval_usec % kMillion;
+  timer.it_value = timer.it_interval;
+  setitimer(timer_type_, &timer, 0);
+}
+
+bool ProfileHandler::IsSignalHandlerAvailable() {
+  struct sigaction sa;
+  RAW_CHECK(sigaction(signal_number_, NULL, &sa) == 0, "is-signal-handler avail");
+
+  // We only take over the handler if the current one is unset.
+  // It must be SIG_IGN or SIG_DFL, not some other function.
+  // SIG_IGN must be allowed because when profiling is allowed but
+  // not actively in use, this code keeps the handler set to SIG_IGN.
+  // That setting will be inherited across fork+exec.  In order for
+  // any child to be able to use profiling, SIG_IGN must be treated
+  // as available.
+  return sa.sa_handler == SIG_IGN || sa.sa_handler == SIG_DFL;
+}
+
+void ProfileHandler::SignalHandler(int sig, siginfo_t* sinfo, void* ucontext) {
+  int saved_errno = errno;
+  // At this moment, instance_ must be initialized because the handler is
+  // enabled in RegisterThread or RegisterCallback only after
+  // ProfileHandler::Instance runs.
+  ProfileHandler* instance = instance_;
+  RAW_CHECK(instance != NULL, "ProfileHandler is not initialized");
+  {
+    SpinLockHolder sl(&instance->signal_lock_);
+    ++instance->interrupts_;
+    for (CallbackIterator it = instance->callbacks_.begin();
+         it != instance->callbacks_.end();
+         ++it) {
+      (*it)->callback(sig, sinfo, ucontext, (*it)->callback_arg);
+    }
+  }
+  errno = saved_errno;
+}
+
+// This module initializer registers the main thread, so it must be
+// executed in the context of the main thread.
+REGISTER_MODULE_INITIALIZER(profile_main, ProfileHandlerRegisterThread());
+
+void ProfileHandlerRegisterThread() {
+  ProfileHandler::Instance()->RegisterThread();
+}
+
+ProfileHandlerToken* ProfileHandlerRegisterCallback(
+    ProfileHandlerCallback callback, void* callback_arg) {
+  return ProfileHandler::Instance()->RegisterCallback(callback, callback_arg);
+}
+
+void ProfileHandlerUnregisterCallback(ProfileHandlerToken* token) {
+  ProfileHandler::Instance()->UnregisterCallback(token);
+}
+
+void ProfileHandlerReset() {
+  return ProfileHandler::Instance()->Reset();
+}
+
+void ProfileHandlerGetState(ProfileHandlerState* state) {
+  ProfileHandler::Instance()->GetState(state);
+}
+
+#else  // OS_CYGWIN
+
+// ITIMER_PROF doesn't work under cygwin.  ITIMER_REAL is available, but doesn't
+// work as well for profiling, and also interferes with alarm().  Because of
+// these issues, unless a specific need is identified, profiler support is
+// disabled under Cygwin.
+void ProfileHandlerRegisterThread() {
+}
+
+ProfileHandlerToken* ProfileHandlerRegisterCallback(
+    ProfileHandlerCallback callback, void* callback_arg) {
+  return NULL;
+}
+
+void ProfileHandlerUnregisterCallback(ProfileHandlerToken* token) {
+}
+
+void ProfileHandlerReset() {
+}
+
+void ProfileHandlerGetState(ProfileHandlerState* state) {
+}
+
+#endif  // OS_CYGWIN
diff --git a/trunk/3rdparty/gperftools-2-fit/src/profile-handler.h b/trunk/3rdparty/gperftools-2-fit/src/profile-handler.h
new file mode 100644
index 000000000..b6bb0a14e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/profile-handler.h
@@ -0,0 +1,142 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Nabeel Mian
+ *
+ * This module manages the cpu profile timers and the associated interrupt
+ * handler. When enabled, all threads in the program are profiled.
+ *
+ * Any component interested in receiving a profile timer interrupt can do so by
+ * registering a callback. All registered callbacks must be async-signal-safe.
+ *
+ * Note: This module requires the sole ownership of the configured timer and
+ * signal. The timer defaults to ITIMER_PROF, can be changed to ITIMER_REAL by
+ * the environment variable CPUPROFILE_REALTIME, or is changed to a POSIX timer
+ * with CPUPROFILE_PER_THREAD_TIMERS. The signal defaults to SIGPROF/SIGALRM to
+ * match the choice of timer and can be set to an arbitrary value using
+ * CPUPROFILE_TIMER_SIGNAL with CPUPROFILE_PER_THREAD_TIMERS.
+ */
+
+#ifndef BASE_PROFILE_HANDLER_H_
+#define BASE_PROFILE_HANDLER_H_
+
+#include "config.h"
+#include 
+#ifdef COMPILER_MSVC
+#include "conflict-signal.h"
+#endif
+#include "base/basictypes.h"
+
+/* Forward declaration. */
+struct ProfileHandlerToken;
+
+/*
+ * Callback function to be used with ProfilefHandlerRegisterCallback. This
+ * function will be called in the context of SIGPROF signal handler and must
+ * be async-signal-safe. The first three arguments are the values provided by
+ * the SIGPROF signal handler. We use void* to avoid using ucontext_t on
+ * non-POSIX systems.
+ *
+ * Requirements:
+ * - Callback must be async-signal-safe.
+ * - None of the functions in ProfileHandler are async-signal-safe. Therefore,
+ *   callback function *must* not call any of the ProfileHandler functions.
+ * - Callback is not required to be re-entrant. At most one instance of
+ *   callback can run at a time.
+ *
+ * Notes:
+ * - The SIGPROF signal handler saves and restores errno, so the callback
+ *   doesn't need to.
+ * - Callback code *must* not acquire lock(s) to serialize access to data shared
+ *   with the code outside the signal handler (callback must be
+ *   async-signal-safe). If such a serialization is needed, follow the model
+ *   used by profiler.cc:
+ *
+ *   When code other than the signal handler modifies the shared data it must:
+ *   - Acquire lock.
+ *   - Unregister the callback with the ProfileHandler.
+ *   - Modify shared data.
+ *   - Re-register the callback.
+ *   - Release lock.
+ *   and the callback code gets a lockless, read-write access to the data.
+ */
+typedef void (*ProfileHandlerCallback)(int sig, siginfo_t* sig_info,
+                                       void* ucontext, void* callback_arg);
+
+/*
+ * Registers a new thread with profile handler and should be called only once
+ * per thread. The main thread is registered at program startup. This routine
+ * is called by the Thread module in google3/thread whenever a new thread is
+ * created. This function is not async-signal-safe.
+ */
+void ProfileHandlerRegisterThread();
+
+/*
+ * Registers a callback routine. This callback function will be called in the
+ * context of SIGPROF handler, so must be async-signal-safe. The returned token
+ * is to be used when unregistering this callback via
+ * ProfileHandlerUnregisterCallback. Registering the first callback enables
+ * the SIGPROF signal handler. Caller must not free the returned token. This
+ * function is not async-signal-safe.
+ */
+ProfileHandlerToken* ProfileHandlerRegisterCallback(
+    ProfileHandlerCallback callback, void* callback_arg);
+
+/*
+ * Unregisters a previously registered callback. Expects the token returned
+ * by the corresponding ProfileHandlerRegisterCallback and asserts that the
+ * passed token is valid. Unregistering the last callback disables the SIGPROF
+ * signal handler. It waits for the currently running callback to
+ * complete before returning. This function is not async-signal-safe.
+ */
+void ProfileHandlerUnregisterCallback(ProfileHandlerToken* token);
+
+/*
+ * FOR TESTING ONLY
+ * Unregisters all the callbacks, stops the timers (if shared) and disables the
+ * SIGPROF handler. All the threads, including the main thread, need to be
+ * re-registered after this call. This function is not async-signal-safe.
+ */
+void ProfileHandlerReset();
+
+/*
+ * Stores profile handler's current state. This function is not
+ * async-signal-safe.
+ */
+struct ProfileHandlerState {
+  int32 frequency;  /* Profiling frequency */
+  int32 callback_count;  /* Number of callbacks registered */
+  int64 interrupts;  /* Number of interrupts received */
+  bool allowed; /* Profiling is allowed */
+};
+void ProfileHandlerGetState(struct ProfileHandlerState* state);
+
+#endif  /* BASE_PROFILE_HANDLER_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/profiledata.cc b/trunk/3rdparty/gperftools-2-fit/src/profiledata.cc
new file mode 100644
index 000000000..7bfb727a2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/profiledata.cc
@@ -0,0 +1,332 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---
+// Author: Sanjay Ghemawat
+//         Chris Demetriou (refactoring)
+//
+// Collect profiling data.
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#ifdef HAVE_UNISTD_H
+#include 
+#endif
+#include 
+#include 
+#include 
+
+#include "profiledata.h"
+
+#include "base/logging.h"
+#include "base/sysinfo.h"
+
+// All of these are initialized in profiledata.h.
+const int ProfileData::kMaxStackDepth;
+const int ProfileData::kAssociativity;
+const int ProfileData::kBuckets;
+const int ProfileData::kBufferLength;
+
+ProfileData::Options::Options()
+    : frequency_(1) {
+}
+
+// This function is safe to call from asynchronous signals (but is not
+// re-entrant).  However, that's not part of its public interface.
+void ProfileData::Evict(const Entry& entry) {
+  const int d = entry.depth;
+  const int nslots = d + 2;     // Number of slots needed in eviction buffer
+  if (num_evicted_ + nslots > kBufferLength) {
+    FlushEvicted();
+    assert(num_evicted_ == 0);
+    assert(nslots <= kBufferLength);
+  }
+  evict_[num_evicted_++] = entry.count;
+  evict_[num_evicted_++] = d;
+  memcpy(&evict_[num_evicted_], entry.stack, d * sizeof(Slot));
+  num_evicted_ += d;
+}
+
+ProfileData::ProfileData()
+    : hash_(0),
+      evict_(0),
+      num_evicted_(0),
+      out_(-1),
+      count_(0),
+      evictions_(0),
+      total_bytes_(0),
+      fname_(0),
+      start_time_(0) {
+}
+
+bool ProfileData::Start(const char* fname,
+                        const ProfileData::Options& options) {
+  if (enabled()) {
+    return false;
+  }
+
+  // Open output file and initialize various data structures
+  int fd = open(fname, O_CREAT | O_WRONLY | O_TRUNC, 0666);
+  if (fd < 0) {
+    // Can't open outfile for write
+    return false;
+  }
+
+  start_time_ = time(NULL);
+  fname_ = strdup(fname);
+
+  // Reset counters
+  num_evicted_ = 0;
+  count_       = 0;
+  evictions_   = 0;
+  total_bytes_ = 0;
+
+  hash_ = new Bucket[kBuckets];
+  evict_ = new Slot[kBufferLength];
+  memset(hash_, 0, sizeof(hash_[0]) * kBuckets);
+
+  // Record special entries
+  evict_[num_evicted_++] = 0;                     // count for header
+  evict_[num_evicted_++] = 3;                     // depth for header
+  evict_[num_evicted_++] = 0;                     // Version number
+  CHECK_NE(0, options.frequency());
+  int period = 1000000 / options.frequency();
+  evict_[num_evicted_++] = period;                // Period (microseconds)
+  evict_[num_evicted_++] = 0;                     // Padding
+
+  out_ = fd;
+
+  return true;
+}
+
+ProfileData::~ProfileData() {
+  Stop();
+}
+
+// Dump /proc/maps data to fd.  Copied from heap-profile-table.cc.
+#define NO_INTR(fn)  do {} while ((fn) < 0 && errno == EINTR)
+
+static void FDWrite(int fd, const char* buf, size_t len) {
+  while (len > 0) {
+    ssize_t r;
+    NO_INTR(r = write(fd, buf, len));
+    RAW_CHECK(r >= 0, "write failed");
+    buf += r;
+    len -= r;
+  }
+}
+
+static void DumpProcSelfMaps(int fd) {
+  ProcMapsIterator::Buffer iterbuf;
+  ProcMapsIterator it(0, &iterbuf);   // 0 means "current pid"
+
+  uint64 start, end, offset;
+  int64 inode;
+  char *flags, *filename;
+  ProcMapsIterator::Buffer linebuf;
+  while (it.Next(&start, &end, &flags, &offset, &inode, &filename)) {
+    int written = it.FormatLine(linebuf.buf_, sizeof(linebuf.buf_),
+                                start, end, flags, offset, inode, filename,
+                                0);
+    FDWrite(fd, linebuf.buf_, written);
+  }
+}
+
+void ProfileData::Stop() {
+  if (!enabled()) {
+    return;
+  }
+
+  // Move data from hash table to eviction buffer
+  for (int b = 0; b < kBuckets; b++) {
+    Bucket* bucket = &hash_[b];
+    for (int a = 0; a < kAssociativity; a++) {
+      if (bucket->entry[a].count > 0) {
+        Evict(bucket->entry[a]);
+      }
+    }
+  }
+
+  if (num_evicted_ + 3 > kBufferLength) {
+    // Ensure there is enough room for end of data marker
+    FlushEvicted();
+  }
+
+  // Write end of data marker
+  evict_[num_evicted_++] = 0;         // count
+  evict_[num_evicted_++] = 1;         // depth
+  evict_[num_evicted_++] = 0;         // end of data marker
+  FlushEvicted();
+
+  // Dump "/proc/self/maps" so we get list of mapped shared libraries
+  DumpProcSelfMaps(out_);
+
+  Reset();
+  fprintf(stderr, "PROFILE: interrupts/evictions/bytes = %d/%d/%zu\n",
+          count_, evictions_, total_bytes_);
+}
+
+void ProfileData::Reset() {
+  if (!enabled()) {
+    return;
+  }
+
+  // Don't reset count_, evictions_, or total_bytes_ here.  They're used
+  // by Stop to print information about the profile after reset, and are
+  // cleared by Start when starting a new profile.
+  close(out_);
+  delete[] hash_;
+  hash_ = 0;
+  delete[] evict_;
+  evict_ = 0;
+  num_evicted_ = 0;
+  free(fname_);
+  fname_ = 0;
+  start_time_ = 0;
+
+  out_ = -1;
+}
+
+// This function is safe to call from asynchronous signals (but is not
+// re-entrant).  However, that's not part of its public interface.
+void ProfileData::GetCurrentState(State* state) const {
+  if (enabled()) {
+    state->enabled = true;
+    state->start_time = start_time_;
+    state->samples_gathered = count_;
+    int buf_size = sizeof(state->profile_name);
+    strncpy(state->profile_name, fname_, buf_size);
+    state->profile_name[buf_size-1] = '\0';
+  } else {
+    state->enabled = false;
+    state->start_time = 0;
+    state->samples_gathered = 0;
+    state->profile_name[0] = '\0';
+  }
+}
+
+// This function is safe to call from asynchronous signals (but is not
+// re-entrant).  However, that's not part of its public interface.
+void ProfileData::FlushTable() {
+  if (!enabled()) {
+    return;
+  }
+
+  // Move data from hash table to eviction buffer
+  for (int b = 0; b < kBuckets; b++) {
+    Bucket* bucket = &hash_[b];
+    for (int a = 0; a < kAssociativity; a++) {
+      if (bucket->entry[a].count > 0) {
+        Evict(bucket->entry[a]);
+        bucket->entry[a].depth = 0;
+        bucket->entry[a].count = 0;
+      }
+    }
+  }
+
+  // Write out all pending data
+  FlushEvicted();
+}
+
+void ProfileData::Add(int depth, const void* const* stack) {
+  if (!enabled()) {
+    return;
+  }
+
+  if (depth > kMaxStackDepth) depth = kMaxStackDepth;
+  RAW_CHECK(depth > 0, "ProfileData::Add depth <= 0");
+
+  // Make hash-value
+  Slot h = 0;
+  for (int i = 0; i < depth; i++) {
+    Slot slot = reinterpret_cast(stack[i]);
+    h = (h << 8) | (h >> (8*(sizeof(h)-1)));
+    h += (slot * 31) + (slot * 7) + (slot * 3);
+  }
+
+  count_++;
+
+  // See if table already has an entry for this trace
+  bool done = false;
+  Bucket* bucket = &hash_[h % kBuckets];
+  for (int a = 0; a < kAssociativity; a++) {
+    Entry* e = &bucket->entry[a];
+    if (e->depth == depth) {
+      bool match = true;
+      for (int i = 0; i < depth; i++) {
+        if (e->stack[i] != reinterpret_cast(stack[i])) {
+          match = false;
+          break;
+        }
+      }
+      if (match) {
+        e->count++;
+        done = true;
+        break;
+      }
+    }
+  }
+
+  if (!done) {
+    // Evict entry with smallest count
+    Entry* e = &bucket->entry[0];
+    for (int a = 1; a < kAssociativity; a++) {
+      if (bucket->entry[a].count < e->count) {
+        e = &bucket->entry[a];
+      }
+    }
+    if (e->count > 0) {
+      evictions_++;
+      Evict(*e);
+    }
+
+    // Use the newly evicted entry
+    e->depth = depth;
+    e->count = 1;
+    for (int i = 0; i < depth; i++) {
+      e->stack[i] = reinterpret_cast(stack[i]);
+    }
+  }
+}
+
+// This function is safe to call from asynchronous signals (but is not
+// re-entrant).  However, that's not part of its public interface.
+void ProfileData::FlushEvicted() {
+  if (num_evicted_ > 0) {
+    const char* buf = reinterpret_cast(evict_);
+    size_t bytes = sizeof(evict_[0]) * num_evicted_;
+    total_bytes_ += bytes;
+    FDWrite(out_, buf, bytes);
+  }
+  num_evicted_ = 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/profiledata.h b/trunk/3rdparty/gperftools-2-fit/src/profiledata.h
new file mode 100644
index 000000000..a4f0446d9
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/profiledata.h
@@ -0,0 +1,184 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---
+// Author: Sanjay Ghemawat
+//         Chris Demetriou (refactoring)
+//
+// Collect profiling data.
+//
+// The profile data file format is documented in
+// docs/cpuprofile-fileformat.html
+
+
+#ifndef BASE_PROFILEDATA_H_
+#define BASE_PROFILEDATA_H_
+
+#include 
+#include    // for time_t
+#include 
+#include "base/basictypes.h"
+
+// A class that accumulates profile samples and writes them to a file.
+//
+// Each sample contains a stack trace and a count.  Memory usage is
+// reduced by combining profile samples that have the same stack trace
+// by adding up the associated counts.
+//
+// Profile data is accumulated in a bounded amount of memory, and will
+// flushed to a file as necessary to stay within the memory limit.
+//
+// Use of this class assumes external synchronization.  The exact
+// requirements of that synchronization are that:
+//
+//  - 'Add' may be called from asynchronous signals, but is not
+//    re-entrant.
+//
+//  - None of 'Start', 'Stop', 'Reset', 'Flush', and 'Add' may be
+//    called at the same time.
+//
+//  - 'Start', 'Stop', or 'Reset' should not be called while 'Enabled'
+//     or 'GetCurrent' are running, and vice versa.
+//
+// A profiler which uses asyncronous signals to add samples will
+// typically use two locks to protect this data structure:
+//
+//  - A SpinLock which is held over all calls except for the 'Add'
+//    call made from the signal handler.
+//
+//  - A SpinLock which is held over calls to 'Start', 'Stop', 'Reset',
+//    'Flush', and 'Add'.  (This SpinLock should be acquired after
+//    the first SpinLock in all cases where both are needed.)
+class ProfileData {
+ public:
+  struct State {
+    bool     enabled;             // Is profiling currently enabled?
+    time_t   start_time;          // If enabled, when was profiling started?
+    char     profile_name[1024];  // Name of file being written, or '\0'
+    int      samples_gathered;    // Number of samples gathered to far (or 0)
+  };
+
+  class Options {
+   public:
+    Options();
+
+    // Get and set the sample frequency.
+    int frequency() const {
+      return frequency_;
+    }
+    void set_frequency(int frequency) {
+      frequency_ = frequency;
+    }
+
+   private:
+    int      frequency_;                  // Sample frequency.
+  };
+
+  static const int kMaxStackDepth = 254;  // Max stack depth stored in profile
+
+  ProfileData();
+  ~ProfileData();
+
+  // If data collection is not already enabled start to collect data
+  // into fname.  Parameters related to this profiling run are specified
+  // by 'options'.
+  //
+  // Returns true if data collection could be started, otherwise (if an
+  // error occurred or if data collection was already enabled) returns
+  // false.
+  bool Start(const char *fname, const Options& options);
+
+  // If data collection is enabled, stop data collection and write the
+  // data to disk.
+  void Stop();
+
+  // Stop data collection without writing anything else to disk, and
+  // discard any collected data.
+  void Reset();
+
+  // If data collection is enabled, record a sample with 'depth'
+  // entries from 'stack'.  (depth must be > 0.)  At most
+  // kMaxStackDepth stack entries will be recorded, starting with
+  // stack[0].
+  //
+  // This function is safe to call from asynchronous signals (but is
+  // not re-entrant).
+  void Add(int depth, const void* const* stack);
+
+  // If data collection is enabled, write the data to disk (and leave
+  // the collector enabled).
+  void FlushTable();
+
+  // Is data collection currently enabled?
+  bool enabled() const { return out_ >= 0; }
+
+  // Get the current state of the data collector.
+  void GetCurrentState(State* state) const;
+
+ private:
+  static const int kAssociativity = 4;          // For hashtable
+  static const int kBuckets = 1 << 10;          // For hashtable
+  static const int kBufferLength = 1 << 18;     // For eviction buffer
+
+  // Type of slots: each slot can be either a count, or a PC value
+  typedef uintptr_t Slot;
+
+  // Hash-table/eviction-buffer entry (a.k.a. a sample)
+  struct Entry {
+    Slot count;                  // Number of hits
+    Slot depth;                  // Stack depth
+    Slot stack[kMaxStackDepth];  // Stack contents
+  };
+
+  // Hash table bucket
+  struct Bucket {
+    Entry entry[kAssociativity];
+  };
+
+  Bucket*       hash_;          // hash table
+  Slot*         evict_;         // evicted entries
+  int           num_evicted_;   // how many evicted entries?
+  int           out_;           // fd for output file.
+  int           count_;         // How many samples recorded
+  int           evictions_;     // How many evictions
+  size_t        total_bytes_;   // How much output
+  char*         fname_;         // Profile file name
+  time_t        start_time_;    // Start time, or 0
+
+  // Move 'entry' to the eviction buffer.
+  void Evict(const Entry& entry);
+
+  // Write contents of eviction buffer to disk.
+  void FlushEvicted();
+
+  DISALLOW_COPY_AND_ASSIGN(ProfileData);
+};
+
+#endif  // BASE_PROFILEDATA_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/profiler.cc b/trunk/3rdparty/gperftools-2-fit/src/profiler.cc
new file mode 100644
index 000000000..227deb2a0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/profiler.cc
@@ -0,0 +1,434 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//         Chris Demetriou (refactoring)
+//
+// Profile current program by sampling stack-trace every so often
+
+#include "config.h"
+#include "getpc.h"      // should be first to get the _GNU_SOURCE dfn
+#include 
+#include 
+#include 
+#include 
+#include 
+#ifdef HAVE_UNISTD_H
+#include   // for getpid()
+#endif
+#if defined(HAVE_SYS_UCONTEXT_H)
+#include 
+#elif defined(HAVE_UCONTEXT_H)
+#include 
+#elif defined(HAVE_CYGWIN_SIGNAL_H)
+#include 
+typedef ucontext ucontext_t;
+#else
+typedef int ucontext_t;   // just to quiet the compiler, mostly
+#endif
+#include 
+#include 
+#include 
+#include 
+#include "base/commandlineflags.h"
+#include "base/logging.h"
+#include "base/googleinit.h"
+#include "base/spinlock.h"
+#include "base/sysinfo.h"             /* for GetUniquePathFromEnv, etc */
+#include "profiledata.h"
+#include "profile-handler.h"
+
+using std::string;
+
+DEFINE_bool(cpu_profiler_unittest,
+            EnvToBool("PERFTOOLS_UNITTEST", true),
+            "Determines whether or not we are running under the \
+             control of a unit test. This allows us to include or \
+			 exclude certain behaviours.");
+
+// Collects up all profile data. This is a singleton, which is
+// initialized by a constructor at startup. If no cpu profiler
+// signal is specified then the profiler lifecycle is either
+// manaully controlled via the API or attached to the scope of
+// the singleton (program scope). Otherwise the cpu toggle is
+// used to allow for user selectable control via signal generation.
+// This is very useful for profiling a daemon process without
+// having to start and stop the daemon or having to modify the
+// source code to use the cpu profiler API.
+class CpuProfiler {
+ public:
+  CpuProfiler();
+  ~CpuProfiler();
+
+  // Start profiler to write profile info into fname
+  bool Start(const char* fname, const ProfilerOptions* options);
+
+  // Stop profiling and write the data to disk.
+  void Stop();
+
+  // Write the data to disk (and continue profiling).
+  void FlushTable();
+
+  bool Enabled();
+
+  void GetCurrentState(ProfilerState* state);
+
+  static CpuProfiler instance_;
+
+ private:
+  // This lock implements the locking requirements described in the ProfileData
+  // documentation, specifically:
+  //
+  // lock_ is held all over all collector_ method calls except for the 'Add'
+  // call made from the signal handler, to protect against concurrent use of
+  // collector_'s control routines. Code other than signal handler must
+  // unregister the signal handler before calling any collector_ method.
+  // 'Add' method in the collector is protected by a guarantee from
+  // ProfileHandle that only one instance of prof_handler can run at a time.
+  SpinLock      lock_;
+  ProfileData   collector_;
+
+  // Filter function and its argument, if any.  (NULL means include all
+  // samples).  Set at start, read-only while running.  Written while holding
+  // lock_, read and executed in the context of SIGPROF interrupt.
+  int           (*filter_)(void*);
+  void*         filter_arg_;
+
+  // Opaque token returned by the profile handler. To be used when calling
+  // ProfileHandlerUnregisterCallback.
+  ProfileHandlerToken* prof_handler_token_;
+
+  // Sets up a callback to receive SIGPROF interrupt.
+  void EnableHandler();
+
+  // Disables receiving SIGPROF interrupt.
+  void DisableHandler();
+
+  // Signal handler that records the interrupted pc in the profile data.
+  static void prof_handler(int sig, siginfo_t*, void* signal_ucontext,
+                           void* cpu_profiler);
+};
+
+// Signal handler that is registered when a user selectable signal
+// number is defined in the environment variable CPUPROFILESIGNAL.
+static void CpuProfilerSwitch(int signal_number)
+{
+  static unsigned profile_count;
+  static char base_profile_name[PATH_MAX];
+  static bool started = false;
+
+  if (base_profile_name[0] == '\0') {
+    if (!GetUniquePathFromEnv("CPUPROFILE", base_profile_name)) {
+      RAW_LOG(FATAL,"Cpu profiler switch is registered but no CPUPROFILE is defined");
+      return;
+    }
+  }
+
+  if (!started) {
+    char full_profile_name[PATH_MAX + 16];
+
+    snprintf(full_profile_name, sizeof(full_profile_name), "%s.%u",
+             base_profile_name, profile_count++);
+
+    if(!ProfilerStart(full_profile_name)) {
+      RAW_LOG(FATAL, "Can't turn on cpu profiling for '%s': %s\n",
+              full_profile_name, strerror(errno));
+    }
+  } else {
+    ProfilerStop();
+  }
+  started = !started;
+}
+
+// Profile data structure singleton: Constructor will check to see if
+// profiling should be enabled.  Destructor will write profile data
+// out to disk.
+CpuProfiler CpuProfiler::instance_;
+
+// Initialize profiling: activated if getenv("CPUPROFILE") exists.
+CpuProfiler::CpuProfiler()
+    : prof_handler_token_(NULL) {
+  // TODO(cgd) Move this code *out* of the CpuProfile constructor into a
+  // separate object responsible for initialization. With ProfileHandler there
+  // is no need to limit the number of profilers.
+  if (getenv("CPUPROFILE") == NULL) {
+    if (!FLAGS_cpu_profiler_unittest) {
+      RAW_LOG(WARNING, "CPU profiler linked but no valid CPUPROFILE environment variable found\n");
+    }
+    return;
+  }
+
+  // We don't enable profiling if setuid -- it's a security risk
+#ifdef HAVE_GETEUID
+  if (getuid() != geteuid()) {
+    if (!FLAGS_cpu_profiler_unittest) {
+      RAW_LOG(WARNING, "Cannot perform CPU profiling when running with setuid\n");
+    }
+    return;
+  }
+#endif
+
+  char *signal_number_str = getenv("CPUPROFILESIGNAL");
+  if (signal_number_str != NULL) {
+    long int signal_number = strtol(signal_number_str, NULL, 10);
+    if (signal_number >= 1 && signal_number <= 64) {
+      intptr_t old_signal_handler = reinterpret_cast(signal(signal_number, CpuProfilerSwitch));
+      if (old_signal_handler == 0) {
+        RAW_LOG(INFO,"Using signal %d as cpu profiling switch", signal_number);
+      } else {
+        RAW_LOG(FATAL, "Signal %d already in use\n", signal_number);
+      }
+    } else {
+      RAW_LOG(FATAL, "Signal number %s is invalid\n", signal_number_str);
+    }
+  } else {
+    char fname[PATH_MAX];
+    if (!GetUniquePathFromEnv("CPUPROFILE", fname)) {
+      if (!FLAGS_cpu_profiler_unittest) {
+        RAW_LOG(WARNING, "CPU profiler linked but no valid CPUPROFILE environment variable found\n");
+      }
+      return;
+	}
+
+    if (!Start(fname, NULL)) {
+      RAW_LOG(FATAL, "Can't turn on cpu profiling for '%s': %s\n",
+              fname, strerror(errno));
+    }
+  }
+}
+
+bool CpuProfiler::Start(const char* fname, const ProfilerOptions* options) {
+  SpinLockHolder cl(&lock_);
+
+  if (collector_.enabled()) {
+    return false;
+  }
+
+  ProfileHandlerState prof_handler_state;
+  ProfileHandlerGetState(&prof_handler_state);
+
+  ProfileData::Options collector_options;
+  collector_options.set_frequency(prof_handler_state.frequency);
+  if (!collector_.Start(fname, collector_options)) {
+    return false;
+  }
+
+  filter_ = NULL;
+  if (options != NULL && options->filter_in_thread != NULL) {
+    filter_ = options->filter_in_thread;
+    filter_arg_ = options->filter_in_thread_arg;
+  }
+
+  // Setup handler for SIGPROF interrupts
+  EnableHandler();
+
+  return true;
+}
+
+CpuProfiler::~CpuProfiler() {
+  Stop();
+}
+
+// Stop profiling and write out any collected profile data
+void CpuProfiler::Stop() {
+  SpinLockHolder cl(&lock_);
+
+  if (!collector_.enabled()) {
+    return;
+  }
+
+  // Unregister prof_handler to stop receiving SIGPROF interrupts before
+  // stopping the collector.
+  DisableHandler();
+
+  // DisableHandler waits for the currently running callback to complete and
+  // guarantees no future invocations. It is safe to stop the collector.
+  collector_.Stop();
+}
+
+void CpuProfiler::FlushTable() {
+  SpinLockHolder cl(&lock_);
+
+  if (!collector_.enabled()) {
+    return;
+  }
+
+  // Unregister prof_handler to stop receiving SIGPROF interrupts before
+  // flushing the profile data.
+  DisableHandler();
+
+  // DisableHandler waits for the currently running callback to complete and
+  // guarantees no future invocations. It is safe to flush the profile data.
+  collector_.FlushTable();
+
+  EnableHandler();
+}
+
+bool CpuProfiler::Enabled() {
+  SpinLockHolder cl(&lock_);
+  return collector_.enabled();
+}
+
+void CpuProfiler::GetCurrentState(ProfilerState* state) {
+  ProfileData::State collector_state;
+  {
+    SpinLockHolder cl(&lock_);
+    collector_.GetCurrentState(&collector_state);
+  }
+
+  state->enabled = collector_state.enabled;
+  state->start_time = static_cast(collector_state.start_time);
+  state->samples_gathered = collector_state.samples_gathered;
+  int buf_size = sizeof(state->profile_name);
+  strncpy(state->profile_name, collector_state.profile_name, buf_size);
+  state->profile_name[buf_size-1] = '\0';
+}
+
+void CpuProfiler::EnableHandler() {
+  RAW_CHECK(prof_handler_token_ == NULL, "SIGPROF handler already registered");
+  prof_handler_token_ = ProfileHandlerRegisterCallback(prof_handler, this);
+  RAW_CHECK(prof_handler_token_ != NULL, "Failed to set up SIGPROF handler");
+}
+
+void CpuProfiler::DisableHandler() {
+  RAW_CHECK(prof_handler_token_ != NULL, "SIGPROF handler is not registered");
+  ProfileHandlerUnregisterCallback(prof_handler_token_);
+  prof_handler_token_ = NULL;
+}
+
+// Signal handler that records the pc in the profile-data structure. We do no
+// synchronization here.  profile-handler.cc guarantees that at most one
+// instance of prof_handler() will run at a time. All other routines that
+// access the data touched by prof_handler() disable this signal handler before
+// accessing the data and therefore cannot execute concurrently with
+// prof_handler().
+void CpuProfiler::prof_handler(int sig, siginfo_t*, void* signal_ucontext,
+                               void* cpu_profiler) {
+  CpuProfiler* instance = static_cast(cpu_profiler);
+
+  if (instance->filter_ == NULL ||
+      (*instance->filter_)(instance->filter_arg_)) {
+    void* stack[ProfileData::kMaxStackDepth];
+
+    // Under frame-pointer-based unwinding at least on x86, the
+    // top-most active routine doesn't show up as a normal frame, but
+    // as the "pc" value in the signal handler context.
+    stack[0] = GetPC(*reinterpret_cast(signal_ucontext));
+
+    // We skip the top three stack trace entries (this function,
+    // SignalHandler::SignalHandler and one signal handler frame)
+    // since they are artifacts of profiling and should not be
+    // measured.  Other profiling related frames may be removed by
+    // "pprof" at analysis time.  Instead of skipping the top frames,
+    // we could skip nothing, but that would increase the profile size
+    // unnecessarily.
+    int depth = GetStackTraceWithContext(stack + 1, arraysize(stack) - 1,
+                                         3, signal_ucontext);
+
+    void **used_stack;
+    if (depth > 0 && stack[1] == stack[0]) {
+      // in case of non-frame-pointer-based unwinding we will get
+      // duplicate of PC in stack[1], which we don't want
+      used_stack = stack + 1;
+    } else {
+      used_stack = stack;
+      depth++;  // To account for pc value in stack[0];
+    }
+
+    instance->collector_.Add(depth, used_stack);
+  }
+}
+
+#if !(defined(__CYGWIN__) || defined(__CYGWIN32__))
+
+extern "C" PERFTOOLS_DLL_DECL void ProfilerRegisterThread() {
+  ProfileHandlerRegisterThread();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void ProfilerFlush() {
+  CpuProfiler::instance_.FlushTable();
+}
+
+extern "C" PERFTOOLS_DLL_DECL int ProfilingIsEnabledForAllThreads() {
+  return CpuProfiler::instance_.Enabled();
+}
+
+extern "C" PERFTOOLS_DLL_DECL int ProfilerStart(const char* fname) {
+  return CpuProfiler::instance_.Start(fname, NULL);
+}
+
+extern "C" PERFTOOLS_DLL_DECL int ProfilerStartWithOptions(
+    const char *fname, const ProfilerOptions *options) {
+  return CpuProfiler::instance_.Start(fname, options);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void ProfilerStop() {
+  CpuProfiler::instance_.Stop();
+}
+
+extern "C" PERFTOOLS_DLL_DECL void ProfilerGetCurrentState(
+    ProfilerState* state) {
+  CpuProfiler::instance_.GetCurrentState(state);
+}
+
+extern "C" PERFTOOLS_DLL_DECL int ProfilerGetStackTrace(
+    void** result, int max_depth, int skip_count, const void *uc) {
+  return GetStackTraceWithContext(result, max_depth, skip_count, uc);
+}
+
+#else  // OS_CYGWIN
+
+// ITIMER_PROF doesn't work under cygwin.  ITIMER_REAL is available, but doesn't
+// work as well for profiling, and also interferes with alarm().  Because of
+// these issues, unless a specific need is identified, profiler support is
+// disabled under Cygwin.
+extern "C" void ProfilerRegisterThread() { }
+extern "C" void ProfilerFlush() { }
+extern "C" int ProfilingIsEnabledForAllThreads() { return 0; }
+extern "C" int ProfilerStart(const char* fname) { return 0; }
+extern "C" int ProfilerStartWithOptions(const char *fname,
+                                        const ProfilerOptions *options) {
+  return 0;
+}
+extern "C" void ProfilerStop() { }
+extern "C" void ProfilerGetCurrentState(ProfilerState* state) {
+  memset(state, 0, sizeof(*state));
+}
+extern "C" int ProfilerGetStackTrace(
+    void** result, int max_depth, int skip_count, const void *uc) {
+  return 0;
+}
+
+#endif  // OS_CYGWIN
+
+// DEPRECATED routines
+extern "C" PERFTOOLS_DLL_DECL void ProfilerEnable() { }
+extern "C" PERFTOOLS_DLL_DECL void ProfilerDisable() { }
diff --git a/trunk/3rdparty/gperftools-2-fit/src/raw_printer.cc b/trunk/3rdparty/gperftools-2-fit/src/raw_printer.cc
new file mode 100644
index 000000000..785d473f0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/raw_printer.cc
@@ -0,0 +1,72 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: sanjay@google.com (Sanjay Ghemawat)
+
+#include 
+#include 
+#include 
+#include "raw_printer.h"
+#include "base/logging.h"
+
+namespace base {
+
+RawPrinter::RawPrinter(char* buf, int length)
+    : base_(buf),
+      ptr_(buf),
+      limit_(buf + length - 1) {
+  RAW_DCHECK(length > 0, "");
+  *ptr_ = '\0';
+  *limit_ = '\0';
+}
+
+void RawPrinter::Printf(const char* format, ...) {
+  if (limit_ > ptr_) {
+    va_list ap;
+    va_start(ap, format);
+    int avail = limit_ - ptr_;
+    // We pass avail+1 to vsnprintf() since that routine needs room
+    // to store the trailing \0.
+    const int r = perftools_vsnprintf(ptr_, avail+1, format, ap);
+    va_end(ap);
+    if (r < 0) {
+      // Perhaps an old glibc that returns -1 on truncation?
+      ptr_ = limit_;
+    } else if (r > avail) {
+      // Truncation
+      ptr_ = limit_;
+    } else {
+      ptr_ += r;
+    }
+  }
+}
+
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/raw_printer.h b/trunk/3rdparty/gperftools-2-fit/src/raw_printer.h
new file mode 100644
index 000000000..5f57bbf40
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/raw_printer.h
@@ -0,0 +1,90 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// A printf() wrapper that writes into a fixed length buffer.
+// Useful in low-level code that does not want to use allocating
+// routines like StringPrintf().
+//
+// The implementation currently uses vsnprintf().  This seems to
+// be fine for use in many low-level contexts, but we may need to
+// rethink this decision if we hit a problem with it calling
+// down into malloc() etc.
+
+#ifndef BASE_RAW_PRINTER_H_
+#define BASE_RAW_PRINTER_H_
+
+#include 
+#include "base/basictypes.h"
+
+namespace base {
+
+class RawPrinter {
+ public:
+  // REQUIRES: "length > 0"
+  // Will printf any data added to this into "buf[0,length-1]" and
+  // will arrange to always keep buf[] null-terminated.
+  RawPrinter(char* buf, int length);
+
+  // Return the number of bytes that have been appended to the string
+  // so far.  Does not count any bytes that were dropped due to overflow.
+  int length() const { return (ptr_ - base_); }
+
+  // Return the number of bytes that can be added to this.
+  int space_left() const { return (limit_ - ptr_); }
+
+  // Format the supplied arguments according to the "format" string
+  // and append to this.  Will silently truncate the output if it does
+  // not fit.
+  void Printf(const char* format, ...)
+#ifdef HAVE___ATTRIBUTE__
+  __attribute__ ((__format__ (__printf__, 2, 3)))
+#endif
+;
+
+ private:
+  // We can write into [ptr_ .. limit_-1].
+  // *limit_ is also writable, but reserved for a terminating \0
+  // in case we overflow.
+  //
+  // Invariants: *ptr_ == \0
+  // Invariants: *limit_ == \0
+  char* base_;          // Initial pointer
+  char* ptr_;           // Where should we write next
+  char* limit_;         // One past last non-\0 char we can write
+
+  DISALLOW_COPY_AND_ASSIGN(RawPrinter);
+};
+
+}
+
+#endif  // BASE_RAW_PRINTER_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/sampler.cc b/trunk/3rdparty/gperftools-2-fit/src/sampler.cc
new file mode 100644
index 000000000..20bf1ad57
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/sampler.cc
@@ -0,0 +1,134 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// All Rights Reserved.
+//
+// Author: Daniel Ford
+
+#include "sampler.h"
+
+#include   // For min()
+#include 
+#include "base/commandlineflags.h"
+
+using std::min;
+
+// The approximate gap in bytes between sampling actions.
+// I.e., we take one sample approximately once every
+// tcmalloc_sample_parameter bytes of allocation
+// i.e. about once every 512KB if value is 1<<19.
+#ifdef NO_TCMALLOC_SAMPLES
+DEFINE_int64(tcmalloc_sample_parameter, 0,
+             "Unused: code is compiled with NO_TCMALLOC_SAMPLES");
+#else
+DEFINE_int64(tcmalloc_sample_parameter,
+             EnvToInt64("TCMALLOC_SAMPLE_PARAMETER", 0),
+             "The approximate gap in bytes between sampling actions. "
+             "This must be between 1 and 2^58.");
+#endif
+
+namespace tcmalloc {
+
+int Sampler::GetSamplePeriod() {
+  return FLAGS_tcmalloc_sample_parameter;
+}
+
+// Run this before using your sampler
+void Sampler::Init(uint64_t seed) {
+  ASSERT(seed != 0);
+
+  // Initialize PRNG
+  rnd_ = seed;
+  // Step it forward 20 times for good measure
+  for (int i = 0; i < 20; i++) {
+    rnd_ = NextRandom(rnd_);
+  }
+  // Initialize counter
+  bytes_until_sample_ = PickNextSamplingPoint();
+}
+
+#define MAX_SSIZE (static_cast(static_cast(static_cast(-1)) >> 1))
+
+// Generates a geometric variable with the specified mean (512K by default).
+// This is done by generating a random number between 0 and 1 and applying
+// the inverse cumulative distribution function for an exponential.
+// Specifically: Let m be the inverse of the sample period, then
+// the probability distribution function is m*exp(-mx) so the CDF is
+// p = 1 - exp(-mx), so
+// q = 1 - p = exp(-mx)
+// log_e(q) = -mx
+// -log_e(q)/m = x
+// log_2(q) * (-log_e(2) * 1/m) = x
+// In the code, q is actually in the range 1 to 2**26, hence the -26 below
+ssize_t Sampler::PickNextSamplingPoint() {
+  if (FLAGS_tcmalloc_sample_parameter <= 0) {
+    // In this case, we don't want to sample ever, and the larger a
+    // value we put here, the longer until we hit the slow path
+    // again. However, we have to support the flag changing at
+    // runtime, so pick something reasonably large (to keep overhead
+    // low) but small enough that we'll eventually start to sample
+    // again.
+    return 16 << 20;
+  }
+
+  rnd_ = NextRandom(rnd_);
+  // Take the top 26 bits as the random number
+  // (This plus the 1<<58 sampling bound give a max possible step of
+  // 5194297183973780480 bytes.)
+  const uint64_t prng_mod_power = 48;  // Number of bits in prng
+  // The uint32_t cast is to prevent a (hard-to-reproduce) NAN
+  // under piii debug for some binaries.
+  double q = static_cast(rnd_ >> (prng_mod_power - 26)) + 1.0;
+  // Put the computed p-value through the CDF of a geometric.
+  double interval =
+      (log2(q) - 26) * (-log(2.0) * FLAGS_tcmalloc_sample_parameter);
+
+  // Very large values of interval overflow ssize_t. If we happen to
+  // hit such improbable condition, we simply cheat and clamp interval
+  // to largest supported value.
+  return static_cast(
+    std::min(interval, static_cast(MAX_SSIZE)));
+}
+
+bool Sampler::RecordAllocationSlow(size_t k) {
+  if (!initialized_) {
+    initialized_ = true;
+    Init(reinterpret_cast(this));
+    if (static_cast(bytes_until_sample_) >= k) {
+      bytes_until_sample_ -= k;
+      return true;
+    }
+  }
+  bytes_until_sample_ = PickNextSamplingPoint();
+  return FLAGS_tcmalloc_sample_parameter <= 0;
+}
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/sampler.h b/trunk/3rdparty/gperftools-2-fit/src/sampler.h
new file mode 100644
index 000000000..82b1e6793
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/sampler.h
@@ -0,0 +1,232 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// All Rights Reserved.
+//
+// Author: Daniel Ford
+
+#ifndef TCMALLOC_SAMPLER_H_
+#define TCMALLOC_SAMPLER_H_
+
+#include "config.h"
+#include                      // for size_t
+#ifdef HAVE_STDINT_H
+#include                      // for uint64_t, uint32_t, int32_t
+#endif
+#include                      // for memcpy
+#include "base/basictypes.h"  // for ASSERT
+#include "internal_logging.h"  // for ASSERT
+#include "static_vars.h"
+
+namespace tcmalloc {
+
+//-------------------------------------------------------------------
+// Sampler to decide when to create a sample trace for an allocation
+// Not thread safe: Each thread should have it's own sampler object.
+// Caller must use external synchronization if used
+// from multiple threads.
+//
+// With 512K average sample step (the default):
+//  the probability of sampling a 4K allocation is about 0.00778
+//  the probability of sampling a 1MB allocation is about 0.865
+//  the probability of sampling a 1GB allocation is about 1.00000
+// In general, the probablity of sampling is an allocation of size X
+// given a flag value of Y (default 1M) is:
+//  1 - e^(-X/Y)
+//
+// With 128K average sample step:
+//  the probability of sampling a 1MB allocation is about 0.99966
+//  the probability of sampling a 1GB allocation is about 1.0
+//  (about 1 - 2**(-26))
+// With 1M average sample step:
+//  the probability of sampling a 4K allocation is about 0.00390
+//  the probability of sampling a 1MB allocation is about 0.632
+//  the probability of sampling a 1GB allocation is about 1.0
+//
+// The sampler works by representing memory as a long stream from
+// which allocations are taken. Some of the bytes in this stream are
+// marked and if an allocation includes a marked byte then it is
+// sampled. Bytes are marked according to a Poisson point process
+// with each byte being marked independently with probability
+// p = 1/tcmalloc_sample_parameter.  This makes the probability
+// of sampling an allocation of X bytes equal to the CDF of
+// a geometric with mean tcmalloc_sample_parameter. (ie. the
+// probability that at least one byte in the range is marked). This
+// is accurately given by the CDF of the corresponding exponential
+// distribution : 1 - e^(-X/tcmalloc_sample_parameter_)
+// Independence of the byte marking ensures independence of
+// the sampling of each allocation.
+//
+// This scheme is implemented by noting that, starting from any
+// fixed place, the number of bytes until the next marked byte
+// is geometrically distributed. This number is recorded as
+// bytes_until_sample_.  Every allocation subtracts from this
+// number until it is less than 0. When this happens the current
+// allocation is sampled.
+//
+// When an allocation occurs, bytes_until_sample_ is reset to
+// a new independtly sampled geometric number of bytes. The
+// memoryless property of the point process means that this may
+// be taken as the number of bytes after the end of the current
+// allocation until the next marked byte. This ensures that
+// very large allocations which would intersect many marked bytes
+// only result in a single call to PickNextSamplingPoint.
+//-------------------------------------------------------------------
+
+class SamplerTest;
+
+class PERFTOOLS_DLL_DECL Sampler {
+ public:
+  constexpr Sampler() {}
+
+  // Initialize this sampler.
+  void Init(uint64_t seed);
+
+  // Record allocation of "k" bytes.  Return true if no further work
+  // is need, and false if allocation needed to be sampled.
+  bool RecordAllocation(size_t k);
+
+  // Same as above (but faster), except:
+  // a) REQUIRES(k < std::numeric_limits::max())
+  // b) if this returns false, you must call RecordAllocation
+  //    to confirm if sampling truly needed.
+  //
+  // The point of this function is to only deal with common case of no
+  // sampling and let caller (which is in malloc fast-path) to
+  // "escalate" to fuller and slower logic only if necessary.
+  bool TryRecordAllocationFast(size_t k);
+
+  // Generate a geometric with mean 512K (or FLAG_tcmalloc_sample_parameter)
+  ssize_t PickNextSamplingPoint();
+
+  // Returns the current sample period
+  static int GetSamplePeriod();
+
+  // The following are public for the purposes of testing
+  static uint64_t NextRandom(uint64_t rnd_);  // Returns the next prng value
+
+  // C++03 requires that types stored in TLS be POD.  As a result, you must
+  // initialize these members to {0, 0, false} before using this class!
+  //
+  // TODO(ahh): C++11 support will let us make these private.
+
+  // Bytes until we sample next.
+  //
+  // More specifically when bytes_until_sample_ is X, we can allocate
+  // X bytes without triggering sampling; on the (X+1)th allocated
+  // byte, the containing allocation will be sampled.
+  //
+  // Always non-negative with only very brief exceptions (see
+  // DecrementFast{,Finish}, so casting to size_t is ok.
+ private:
+  friend class SamplerTest;
+  bool RecordAllocationSlow(size_t k);
+
+  ssize_t bytes_until_sample_{};
+  uint64_t rnd_{};  // Cheap random number generator
+  bool initialized_{};
+};
+
+inline bool Sampler::RecordAllocation(size_t k) {
+  // The first time we enter this function we expect bytes_until_sample_
+  // to be zero, and we must call SampleAllocationSlow() to ensure
+  // proper initialization of static vars.
+  ASSERT(Static::IsInited() || bytes_until_sample_ == 0);
+
+  // Note that we have to deal with arbitrarily large values of k
+  // here. Thus we're upcasting bytes_until_sample_ to unsigned rather
+  // than the other way around. And this is why this code cannot be
+  // merged with DecrementFast code below.
+  if (static_cast(bytes_until_sample_) < k) {
+    bool result = RecordAllocationSlow(k);
+    ASSERT(Static::IsInited());
+    return result;
+  } else {
+    bytes_until_sample_ -= k;
+    ASSERT(Static::IsInited());
+    return true;
+  }
+}
+
+inline bool Sampler::TryRecordAllocationFast(size_t k) {
+  // For efficiency reason, we're testing bytes_until_sample_ after
+  // decrementing it by k. This allows compiler to do sub , 
+  // followed by conditional jump on sign. But it is correct only if k
+  // is actually smaller than largest ssize_t value. Otherwise
+  // converting k to signed value overflows.
+  //
+  // It would be great for generated code to be sub , 
+  // followed by conditional jump on 'carry', which would work for
+  // arbitrary values of k, but there seem to be no way to express
+  // that in C++.
+  //
+  // Our API contract explicitly states that only small values of k
+  // are permitted. And thus it makes sense to assert on that.
+  ASSERT(static_cast(k) >= 0);
+
+  bytes_until_sample_ -= static_cast(k);
+  if (PREDICT_FALSE(bytes_until_sample_ < 0)) {
+    // Note, we undo sampling counter update, since we're not actually
+    // handling slow path in the "needs sampling" case (calling
+    // RecordAllocationSlow to reset counter). And we do that in order
+    // to avoid non-tail calls in malloc fast-path. See also comments
+    // on declaration inside Sampler class.
+    //
+    // volatile is used here to improve compiler's choice of
+    // instuctions. We know that this path is very rare and that there
+    // is no need to keep previous value of bytes_until_sample_ in
+    // register. This helps compiler generate slightly more efficient
+    // sub ,  instruction for subtraction above.
+    volatile ssize_t *ptr =
+        const_cast(&bytes_until_sample_);
+    *ptr += k;
+    return false;
+  }
+  return true;
+}
+
+// Inline functions which are public for testing purposes
+
+// Returns the next prng value.
+// pRNG is: aX+b mod c with a = 0x5DEECE66D, b =  0xB, c = 1<<48
+// This is the lrand64 generator.
+inline uint64_t Sampler::NextRandom(uint64_t rnd) {
+  const uint64_t prng_mult = 0x5DEECE66DULL;
+  const uint64_t prng_add = 0xB;
+  const uint64_t prng_mod_power = 48;
+  const uint64_t prng_mod_mask =
+      ~((~static_cast(0)) << prng_mod_power);
+  return (prng_mult * rnd + prng_add) & prng_mod_mask;
+}
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_SAMPLER_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/span.cc b/trunk/3rdparty/gperftools-2-fit/src/span.cc
new file mode 100644
index 000000000..eac43f4d6
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/span.cc
@@ -0,0 +1,90 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#include 
+#include "span.h"
+
+#include                      // for NULL, memset
+
+#include "internal_logging.h"  // for ASSERT
+#include "page_heap_allocator.h"  // for PageHeapAllocator
+#include "static_vars.h"       // for Static
+
+namespace tcmalloc {
+
+Span* NewSpan(PageID p, Length len) {
+  Span* result = Static::span_allocator()->New();
+  memset(result, 0, sizeof(*result));
+  result->start = p;
+  result->length = len;
+  return result;
+}
+
+void DeleteSpan(Span* span) {
+#ifndef NDEBUG
+  // In debug mode, trash the contents of deleted Spans
+  memset(span, 0x3f, sizeof(*span));
+#endif
+  Static::span_allocator()->Delete(span);
+}
+
+void DLL_Init(Span* list) {
+  list->next = list;
+  list->prev = list;
+}
+
+void DLL_Remove(Span* span) {
+  span->prev->next = span->next;
+  span->next->prev = span->prev;
+  span->prev = NULL;
+  span->next = NULL;
+}
+
+int DLL_Length(const Span* list) {
+  int result = 0;
+  for (Span* s = list->next; s != list; s = s->next) {
+    result++;
+  }
+  return result;
+}
+
+void DLL_Prepend(Span* list, Span* span) {
+  ASSERT(span->next == NULL);
+  ASSERT(span->prev == NULL);
+  span->next = list->next;
+  span->prev = list;
+  list->next->prev = span;
+  list->next = span;
+}
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/span.h b/trunk/3rdparty/gperftools-2-fit/src/span.h
new file mode 100644
index 000000000..70688933c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/span.h
@@ -0,0 +1,161 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+//
+// A Span is a contiguous run of pages.
+
+#ifndef TCMALLOC_SPAN_H_
+#define TCMALLOC_SPAN_H_
+
+#include 
+#include 
+#include "common.h"
+#include "base/logging.h"
+#include "page_heap_allocator.h"
+
+namespace tcmalloc {
+
+struct SpanBestFitLess;
+struct Span;
+
+// Store a pointer to a span along with a cached copy of its length.
+// These are used as set elements to improve the performance of
+// comparisons during tree traversal: the lengths are inline with the
+// tree nodes and thus avoid expensive cache misses to dereference
+// the actual Span objects in most cases.
+struct SpanPtrWithLength {
+  explicit SpanPtrWithLength(Span* s);
+
+  Span* span;
+  Length length;
+};
+typedef std::set > SpanSet;
+
+// Comparator for best-fit search, with address order as a tie-breaker.
+struct SpanBestFitLess {
+  bool operator()(SpanPtrWithLength a, SpanPtrWithLength b) const;
+};
+
+// Information kept for a span (a contiguous run of pages).
+struct Span {
+  PageID        start;          // Starting page number
+  Length        length;         // Number of pages in span
+  Span*         next;           // Used when in link list
+  Span*         prev;           // Used when in link list
+  union {
+    void* objects;              // Linked list of free objects
+
+    // Span may contain iterator pointing back at SpanSet entry of
+    // this span into set of large spans. It is used to quickly delete
+    // spans from those sets. span_iter_space is space for such
+    // iterator which lifetime is controlled explicitly.
+    char span_iter_space[sizeof(SpanSet::iterator)];
+  };
+  unsigned int  refcount : 16;  // Number of non-free objects
+  unsigned int  sizeclass : 8;  // Size-class for small objects (or 0)
+  unsigned int  location : 2;   // Is the span on a freelist, and if so, which?
+  unsigned int  sample : 1;     // Sampled object?
+  bool          has_span_iter : 1; // Iff span_iter_space has valid
+                                   // iterator. Only for debug builds.
+
+  // Sets iterator stored in span_iter_space.
+  // Requires has_span_iter == 0.
+  void SetSpanSetIterator(const SpanSet::iterator& iter);
+  // Copies out and destroys iterator stored in span_iter_space.
+  SpanSet::iterator ExtractSpanSetIterator();
+
+  // What freelist the span is on: IN_USE if on none, or normal or returned
+  enum { IN_USE, ON_NORMAL_FREELIST, ON_RETURNED_FREELIST };
+};
+
+inline SpanPtrWithLength::SpanPtrWithLength(Span* s)
+    : span(s),
+      length(s->length) {
+}
+
+inline bool SpanBestFitLess::operator()(SpanPtrWithLength a, SpanPtrWithLength b) const {
+  if (a.length < b.length)
+    return true;
+  if (a.length > b.length)
+    return false;
+  return a.span->start < b.span->start;
+}
+
+inline void Span::SetSpanSetIterator(const SpanSet::iterator& iter) {
+  ASSERT(!has_span_iter);
+  has_span_iter = 1;
+
+  new (span_iter_space) SpanSet::iterator(iter);
+}
+
+inline SpanSet::iterator Span::ExtractSpanSetIterator() {
+  typedef SpanSet::iterator iterator_type;
+
+  ASSERT(has_span_iter);
+  has_span_iter = 0;
+
+  iterator_type* this_iter =
+    reinterpret_cast(span_iter_space);
+  iterator_type retval = *this_iter;
+  this_iter->~iterator_type();
+  return retval;
+}
+
+// Allocator/deallocator for spans
+Span* NewSpan(PageID p, Length len);
+void DeleteSpan(Span* span);
+
+// -------------------------------------------------------------------------
+// Doubly linked list of spans.
+// -------------------------------------------------------------------------
+
+// Initialize *list to an empty list.
+void DLL_Init(Span* list);
+
+// Remove 'span' from the linked list in which it resides, updating the
+// pointers of adjacent Spans and setting span's next and prev to NULL.
+void DLL_Remove(Span* span);
+
+// Return true iff "list" is empty.
+inline bool DLL_IsEmpty(const Span* list) {
+  return list->next == list;
+}
+
+// Add span to the front of list.
+void DLL_Prepend(Span* list, Span* span);
+
+// Return the length of the linked list. O(n)
+int DLL_Length(const Span* list);
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_SPAN_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stack_trace_table.cc b/trunk/3rdparty/gperftools-2-fit/src/stack_trace_table.cc
new file mode 100644
index 000000000..5888dc041
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stack_trace_table.cc
@@ -0,0 +1,123 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Andrew Fikes
+
+#include 
+#include "stack_trace_table.h"
+#include                      // for NULL, memset
+#include "base/spinlock.h"              // for SpinLockHolder
+#include "common.h"            // for StackTrace
+#include "internal_logging.h"  // for ASSERT, Log
+#include "page_heap_allocator.h"  // for PageHeapAllocator
+#include "static_vars.h"       // for Static
+
+namespace tcmalloc {
+
+StackTraceTable::StackTraceTable()
+    : error_(false),
+      depth_total_(0),
+      bucket_total_(0),
+      head_(nullptr) {
+}
+
+StackTraceTable::~StackTraceTable() {
+  ASSERT(head_ == nullptr);
+}
+
+void StackTraceTable::AddTrace(const StackTrace& t) {
+  if (error_) {
+    return;
+  }
+
+  depth_total_ += t.depth;
+  bucket_total_++;
+  Entry* entry = allocator_.allocate(1);
+  if (entry == nullptr) {
+    Log(kLog, __FILE__, __LINE__,
+        "tcmalloc: could not allocate bucket", sizeof(*entry));
+    error_ = true;
+  } else {
+    entry->trace = t;
+    entry->next = head_;
+    head_ = entry;
+  }
+}
+
+void** StackTraceTable::ReadStackTracesAndClear() {
+  void** out = nullptr;
+
+  const int out_len = bucket_total_ * 3 + depth_total_ + 1;
+  if (!error_) {
+    // Allocate output array
+    out = new (std::nothrow_t{}) void*[out_len];
+    if (out == nullptr) {
+      Log(kLog, __FILE__, __LINE__,
+          "tcmalloc: allocation failed for stack traces",
+          out_len * sizeof(*out));
+    }
+  }
+
+  if (out) {
+    // Fill output array
+    int idx = 0;
+    Entry* entry = head_;
+    while (entry != NULL) {
+      out[idx++] = reinterpret_cast(uintptr_t{1});   // count
+      out[idx++] = reinterpret_cast(entry->trace.size);  // cumulative size
+      out[idx++] = reinterpret_cast(entry->trace.depth);
+      for (int d = 0; d < entry->trace.depth; ++d) {
+        out[idx++] = entry->trace.stack[d];
+      }
+      entry = entry->next;
+    }
+    out[idx++] = NULL;
+    ASSERT(idx == out_len);
+  }
+
+  // Clear state
+  error_ = false;
+  depth_total_ = 0;
+  bucket_total_ = 0;
+
+  SpinLockHolder h(Static::pageheap_lock());
+  Entry* entry = head_;
+  while (entry != nullptr) {
+    Entry* next = entry->next;
+    allocator_.deallocate(entry, 1);
+    entry = next;
+  }
+  head_ = nullptr;
+
+  return out;
+}
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stack_trace_table.h b/trunk/3rdparty/gperftools-2-fit/src/stack_trace_table.h
new file mode 100644
index 000000000..46b86bad0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stack_trace_table.h
@@ -0,0 +1,85 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Andrew Fikes
+//
+// Utility class for coalescing sampled stack traces.  Not thread-safe.
+
+#ifndef TCMALLOC_STACK_TRACE_TABLE_H_
+#define TCMALLOC_STACK_TRACE_TABLE_H_
+
+#include 
+#ifdef HAVE_STDINT_H
+#include                      // for uintptr_t
+#endif
+#include "common.h"
+#include "page_heap_allocator.h"
+
+namespace tcmalloc {
+
+class PERFTOOLS_DLL_DECL StackTraceTable {
+ public:
+  // REQUIRES: L < pageheap_lock
+  StackTraceTable();
+  ~StackTraceTable();
+
+  // Adds stack trace "t" to table.
+  //
+  // REQUIRES: L >= pageheap_lock
+  void AddTrace(const StackTrace& t);
+
+  // Returns stack traces formatted per MallocExtension guidelines.
+  // May return NULL on error.  Clears state before returning.
+  //
+  // REQUIRES: L < pageheap_lock
+  void** ReadStackTracesAndClear();
+
+  // Exposed for PageHeapAllocator
+  // For testing
+  int depth_total() const { return depth_total_; }
+  int bucket_total() const { return bucket_total_; }
+
+ private:
+  struct Entry {
+    Entry* next;
+    StackTrace trace;
+  };
+
+  bool error_;
+  int depth_total_;
+  int bucket_total_;
+  Entry* head_;
+  STLPageHeapAllocator allocator_;
+};
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_STACK_TRACE_TABLE_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace.cc b/trunk/3rdparty/gperftools-2-fit/src/stacktrace.cc
new file mode 100644
index 000000000..2a2c64822
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace.cc
@@ -0,0 +1,396 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Produce stack trace.
+//
+// There are three different ways we can try to get the stack trace:
+//
+// 1) Our hand-coded stack-unwinder.  This depends on a certain stack
+//    layout, which is used by gcc (and those systems using a
+//    gcc-compatible ABI) on x86 systems, at least since gcc 2.95.
+//    It uses the frame pointer to do its work.
+//
+// 2) The libunwind library.  This is still in development, and as a
+//    separate library adds a new dependency, abut doesn't need a frame
+//    pointer.  It also doesn't call malloc.
+//
+// 3) The gdb unwinder -- also the one used by the c++ exception code.
+//    It's obviously well-tested, but has a fatal flaw: it can call
+//    malloc() from the unwinder.  This is a problem because we're
+//    trying to use the unwinder to instrument malloc().
+//
+// Note: if you add a new implementation here, make sure it works
+// correctly when GetStackTrace() is called with max_depth == 0.
+// Some code may do that.
+
+#include 
+#include  // for getenv
+#include  // for strcmp
+#include  // for fprintf
+#include "gperftools/stacktrace.h"
+#include "base/commandlineflags.h"
+#include "base/googleinit.h"
+#include "getenv_safe.h"
+
+
+// we're using plain struct and not class to avoid any possible issues
+// during initialization. Struct of pointers is easy to init at
+// link-time.
+struct GetStackImplementation {
+  int (*GetStackFramesPtr)(void** result, int* sizes, int max_depth,
+                           int skip_count);
+
+  int (*GetStackFramesWithContextPtr)(void** result, int* sizes, int max_depth,
+                                      int skip_count, const void *uc);
+
+  int (*GetStackTracePtr)(void** result, int max_depth,
+                          int skip_count);
+
+  int (*GetStackTraceWithContextPtr)(void** result, int max_depth,
+                                  int skip_count, const void *uc);
+
+  const char *name;
+};
+
+#if HAVE_DECL_BACKTRACE
+#define STACKTRACE_INL_HEADER "stacktrace_generic-inl.h"
+#define GST_SUFFIX generic
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_generic
+#endif
+
+#ifdef HAVE_UNWIND_BACKTRACE
+#define STACKTRACE_INL_HEADER "stacktrace_libgcc-inl.h"
+#define GST_SUFFIX libgcc
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_libgcc
+#endif
+
+// libunwind uses __thread so we check for both libunwind.h and
+// __thread support
+#if defined(HAVE_LIBUNWIND_H) && defined(HAVE_TLS)
+#define STACKTRACE_INL_HEADER "stacktrace_libunwind-inl.h"
+#define GST_SUFFIX libunwind
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_libunwind
+#endif // HAVE_LIBUNWIND_H
+
+#if defined(__i386__) || defined(__x86_64__)
+#define STACKTRACE_INL_HEADER "stacktrace_x86-inl.h"
+#define GST_SUFFIX x86
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_x86
+#endif // i386 || x86_64
+
+// Sadly, different OSes have very different mcontexts even for
+// identical hardware arch. So keep it linux-only for now.
+#if defined(__GNUC__) && __linux__ && (defined(__x86_64__) || defined(__aarch64__) || defined(__riscv))
+#define STACKTRACE_INL_HEADER "stacktrace_generic_fp-inl.h"
+#define GST_SUFFIX generic_fp
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_generic_fp
+
+#undef TCMALLOC_UNSAFE_GENERIC_FP_STACKTRACE
+#define TCMALLOC_UNSAFE_GENERIC_FP_STACKTRACE 1
+
+#define STACKTRACE_INL_HEADER "stacktrace_generic_fp-inl.h"
+#define GST_SUFFIX generic_fp_unsafe
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_generic_fp_unsafe
+#endif
+
+#if defined(__ppc__) || defined(__PPC__)
+#if defined(__linux__)
+#define STACKTRACE_INL_HEADER "stacktrace_powerpc-linux-inl.h"
+#else
+#define STACKTRACE_INL_HEADER "stacktrace_powerpc-darwin-inl.h"
+#endif
+#define GST_SUFFIX ppc
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_ppc
+#endif
+
+#if defined(__arm__)
+#define STACKTRACE_INL_HEADER "stacktrace_arm-inl.h"
+#define GST_SUFFIX arm
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_arm
+#endif
+
+#ifdef TCMALLOC_ENABLE_INSTRUMENT_STACKTRACE
+#define STACKTRACE_INL_HEADER "stacktrace_instrument-inl.h"
+#define GST_SUFFIX instrument
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_instrument
+#endif
+
+// The Windows case -- probably cygwin and mingw will use one of the
+// x86-includes above, but if not, we can fall back to windows intrinsics.
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__MINGW32__)
+#define STACKTRACE_INL_HEADER "stacktrace_win32-inl.h"
+#define GST_SUFFIX win32
+#include "stacktrace_impl_setup-inl.h"
+#undef GST_SUFFIX
+#undef STACKTRACE_INL_HEADER
+#define HAVE_GST_win32
+#endif
+
+static GetStackImplementation *all_impls[] = {
+#ifdef HAVE_GST_libgcc
+  &impl__libgcc,
+#endif
+#ifdef HAVE_GST_generic
+  &impl__generic,
+#endif
+#ifdef HAVE_GST_generic_fp
+  &impl__generic_fp,
+#endif
+#ifdef HAVE_GST_generic_fp
+  &impl__generic_fp_unsafe,
+#endif
+#ifdef HAVE_GST_libunwind
+  &impl__libunwind,
+#endif
+#ifdef HAVE_GST_x86
+  &impl__x86,
+#endif
+#ifdef HAVE_GST_arm
+  &impl__arm,
+#endif
+#ifdef HAVE_GST_ppc
+  &impl__ppc,
+#endif
+#ifdef HAVE_GST_instrument
+  &impl__instrument,
+#endif
+#ifdef HAVE_GST_win32
+  &impl__win32,
+#endif
+  NULL
+};
+
+// ppc and i386 implementations prefer arch-specific asm implementations.
+// arm's asm implementation is broken
+#if defined(__i386__) || defined(__ppc__) || defined(__PPC__)
+#if !defined(NO_FRAME_POINTER)
+#define TCMALLOC_DONT_PREFER_LIBUNWIND
+#endif
+#endif
+
+static bool get_stack_impl_inited;
+
+#if defined(HAVE_GST_instrument)
+static GetStackImplementation *get_stack_impl = &impl__instrument;
+#elif defined(HAVE_GST_win32)
+static GetStackImplementation *get_stack_impl = &impl__win32;
+#elif defined(HAVE_GST_generic_fp) && !defined(NO_FRAME_POINTER) \
+   && !defined(__riscv) \
+   && (!defined(HAVE_GST_libunwind) || defined(TCMALLOC_DONT_PREFER_LIBUNWIND))
+static GetStackImplementation *get_stack_impl = &impl__generic_fp;
+#elif defined(HAVE_GST_x86) && defined(TCMALLOC_DONT_PREFER_LIBUNWIND)
+static GetStackImplementation *get_stack_impl = &impl__x86;
+#elif defined(HAVE_GST_ppc) && defined(TCMALLOC_DONT_PREFER_LIBUNWIND)
+static GetStackImplementation *get_stack_impl = &impl__ppc;
+#elif defined(HAVE_GST_libunwind)
+static GetStackImplementation *get_stack_impl = &impl__libunwind;
+#elif defined(HAVE_GST_libgcc)
+static GetStackImplementation *get_stack_impl = &impl__libgcc;
+#elif defined(HAVE_GST_generic)
+static GetStackImplementation *get_stack_impl = &impl__generic;
+#elif defined(HAVE_GST_arm)
+static GetStackImplementation *get_stack_impl = &impl__arm;
+#elif 0
+// This is for the benefit of code analysis tools that may have
+// trouble with the computed #include above.
+# include "stacktrace_x86-inl.h"
+# include "stacktrace_libunwind-inl.h"
+# include "stacktrace_generic-inl.h"
+# include "stacktrace_powerpc-inl.h"
+# include "stacktrace_win32-inl.h"
+# include "stacktrace_arm-inl.h"
+# include "stacktrace_instrument-inl.h"
+#else
+#error Cannot calculate stack trace: will need to write for your environment
+#endif
+
+static int ATTRIBUTE_NOINLINE frame_forcer(int rv) {
+  return rv;
+}
+
+static void init_default_stack_impl_inner(void);
+
+namespace tcmalloc {
+  bool EnterStacktraceScope(void);
+  void LeaveStacktraceScope(void);
+}
+
+namespace {
+  using tcmalloc::EnterStacktraceScope;
+  using tcmalloc::LeaveStacktraceScope;
+
+  class StacktraceScope {
+    bool stacktrace_allowed;
+  public:
+    StacktraceScope() {
+      stacktrace_allowed = true;
+      stacktrace_allowed = EnterStacktraceScope();
+    }
+    bool IsStacktraceAllowed() {
+      return stacktrace_allowed;
+    }
+    ~StacktraceScope() {
+      if (stacktrace_allowed) {
+        LeaveStacktraceScope();
+      }
+    }
+  };
+}
+
+PERFTOOLS_DLL_DECL int GetStackFrames(void** result, int* sizes, int max_depth,
+                                      int skip_count) {
+  StacktraceScope scope;
+  if (!scope.IsStacktraceAllowed()) {
+    return 0;
+  }
+  init_default_stack_impl_inner();
+  return frame_forcer(get_stack_impl->GetStackFramesPtr(result, sizes, max_depth, skip_count));
+}
+
+PERFTOOLS_DLL_DECL int GetStackFramesWithContext(void** result, int* sizes, int max_depth,
+                                                 int skip_count, const void *uc) {
+  StacktraceScope scope;
+  if (!scope.IsStacktraceAllowed()) {
+    return 0;
+  }
+  init_default_stack_impl_inner();
+  return frame_forcer(get_stack_impl->GetStackFramesWithContextPtr(
+                        result, sizes, max_depth,
+                        skip_count, uc));
+}
+
+PERFTOOLS_DLL_DECL int GetStackTrace(void** result, int max_depth,
+                                     int skip_count) {
+  StacktraceScope scope;
+  if (!scope.IsStacktraceAllowed()) {
+    return 0;
+  }
+  init_default_stack_impl_inner();
+  return frame_forcer(get_stack_impl->GetStackTracePtr(result, max_depth, skip_count));
+}
+
+PERFTOOLS_DLL_DECL int GetStackTraceWithContext(void** result, int max_depth,
+                                                int skip_count, const void *uc) {
+  StacktraceScope scope;
+  if (!scope.IsStacktraceAllowed()) {
+    return 0;
+  }
+  init_default_stack_impl_inner();
+  return frame_forcer(get_stack_impl->GetStackTraceWithContextPtr(
+                        result, max_depth, skip_count, uc));
+}
+
+// As of this writing, aarch64 has completely borked libunwind, so
+// lets test this case and fall back to frame pointers (which is
+// nearly but not quite perfect).
+ATTRIBUTE_NOINLINE
+static void maybe_convert_libunwind_to_generic_fp() {
+#if defined(HAVE_GST_libunwind) && defined(HAVE_GST_generic_fp)
+  if (get_stack_impl != &impl__libunwind) {
+    return;
+  }
+
+  // Okay we're on libunwind and we have generic_fp, check if
+  // libunwind returns bogus results.
+  void* stack[4];
+  int rv = get_stack_impl->GetStackTracePtr(stack, 4, 0);
+  if (rv > 2) {
+    // Seems fine
+    return;
+  }
+  // bogus. So replacing with generic_fp
+  get_stack_impl = &impl__generic_fp;
+#endif
+}
+
+static void init_default_stack_impl_inner(void) {
+  if (get_stack_impl_inited) {
+    return;
+  }
+  get_stack_impl_inited = true;
+  const char *val = TCMallocGetenvSafe("TCMALLOC_STACKTRACE_METHOD");
+  if (!val || !*val) {
+    maybe_convert_libunwind_to_generic_fp();
+    return;
+  }
+  for (GetStackImplementation **p = all_impls; *p; p++) {
+    GetStackImplementation *c = *p;
+    if (strcmp(c->name, val) == 0) {
+      get_stack_impl = c;
+      return;
+    }
+  }
+  fprintf(stderr, "Unknown or unsupported stacktrace method requested: %s. Ignoring it\n", val);
+}
+
+ATTRIBUTE_NOINLINE
+static void init_default_stack_impl(void) {
+  init_default_stack_impl_inner();
+  if (EnvToBool("TCMALLOC_STACKTRACE_METHOD_VERBOSE", false)) {
+    fprintf(stderr, "Chosen stacktrace method is %s\nSupported methods:\n", get_stack_impl->name);
+    for (GetStackImplementation **p = all_impls; *p; p++) {
+      GetStackImplementation *c = *p;
+      fprintf(stderr, "* %s\n", c->name);
+    }
+    fputs("\n", stderr);
+  }
+}
+
+REGISTER_MODULE_INITIALIZER(stacktrace_init_default_stack_impl, init_default_stack_impl());
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_arm-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_arm-inl.h
new file mode 100644
index 000000000..1586b8fec
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_arm-inl.h
@@ -0,0 +1,148 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Doug Kwan
+// This is inspired by Craig Silverstein's PowerPC stacktrace code.
+//
+
+#ifndef BASE_STACKTRACE_ARM_INL_H_
+#define BASE_STACKTRACE_ARM_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+#include    // for uintptr_t
+#include "base/basictypes.h"  // for NULL
+#include 
+
+// WARNING:
+// This only works if all your code is in either ARM or THUMB mode.  With
+// interworking, the frame pointer of the caller can either be in r11 (ARM
+// mode) or r7 (THUMB mode).  A callee only saves the frame pointer of its
+// mode in a fixed location on its stack frame.  If the caller is a different
+// mode, there is no easy way to find the frame pointer.  It can either be
+// still in the designated register or saved on stack along with other callee
+// saved registers.
+
+// Given a pointer to a stack frame, locate and return the calling
+// stackframe, or return NULL if no stackframe can be found. Perform sanity
+// checks (the strictness of which is controlled by the boolean parameter
+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
+template
+static void **NextStackFrame(void **old_sp) {
+  void **new_sp = (void**) old_sp[-1];
+
+  // Check that the transition from frame pointer old_sp to frame
+  // pointer new_sp isn't clearly bogus
+  if (STRICT_UNWINDING) {
+    // With the stack growing downwards, older stack frame must be
+    // at a greater address that the current one.
+    if (new_sp <= old_sp) return NULL;
+    // Assume stack frames larger than 100,000 bytes are bogus.
+    if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL;
+  } else {
+    // In the non-strict mode, allow discontiguous stack frames.
+    // (alternate-signal-stacks for example).
+    if (new_sp == old_sp) return NULL;
+    // And allow frames upto about 1MB.
+    if ((new_sp > old_sp)
+        && ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return NULL;
+  }
+  if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL;
+  return new_sp;
+}
+
+// This ensures that GetStackTrace stes up the Link Register properly.
+#ifdef __GNUC__
+void StacktraceArmDummyFunction() __attribute__((noinline));
+void StacktraceArmDummyFunction() { __asm__ volatile(""); }
+#else
+# error StacktraceArmDummyFunction() needs to be ported to this platform.
+#endif
+#endif  // BASE_STACKTRACE_ARM_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+static int GET_STACK_TRACE_OR_FRAMES {
+#ifdef __GNUC__
+  void **sp = reinterpret_cast(__builtin_frame_address(0));
+#else
+# error reading stack point not yet supported on this platform.
+#endif
+
+  // On ARM, the return address is stored in the link register (r14).
+  // This is not saved on the stack frame of a leaf function.  To
+  // simplify code that reads return addresses, we call a dummy
+  // function so that the return address of this function is also
+  // stored in the stack frame.  This works at least for gcc.
+  StacktraceArmDummyFunction();
+
+  skip_count++; // skip parent frame due to indirection in stacktrace.cc
+
+  int n = 0;
+  while (sp && n < max_depth) {
+    // The GetStackFrames routine is called when we are in some
+    // informational context (the failure signal handler for example).
+    // Use the non-strict unwinding rules to produce a stack trace
+    // that is as complete as possible (even if it contains a few bogus
+    // entries in some rare cases).
+    void **next_sp = NextStackFrame(sp);
+
+    if (skip_count > 0) {
+      skip_count--;
+    } else {
+      result[n] = *sp;
+
+#if IS_STACK_FRAMES
+      if (next_sp > sp) {
+        sizes[n] = (uintptr_t)next_sp - (uintptr_t)sp;
+      } else {
+        // A frame-size of 0 is used to indicate unknown frame size.
+        sizes[n] = 0;
+      }
+#endif
+      n++;
+    }
+    sp = next_sp;
+  }
+  return n;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_generic-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_generic-inl.h
new file mode 100644
index 000000000..7d7c22d9e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_generic-inl.h
@@ -0,0 +1,84 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Portable implementation - just use glibc
+//
+// Note:  The glibc implementation may cause a call to malloc.
+// This can cause a deadlock in HeapProfiler.
+
+#ifndef BASE_STACKTRACE_GENERIC_INL_H_
+#define BASE_STACKTRACE_GENERIC_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+#include 
+#include 
+#include "gperftools/stacktrace.h"
+#endif  // BASE_STACKTRACE_GENERIC_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+static int GET_STACK_TRACE_OR_FRAMES {
+  static const int kStackLength = 64;
+  void * stack[kStackLength];
+  int size;
+
+  size = backtrace(stack, kStackLength);
+  skip_count += 2;  // we want to skip the current and it's parent frame as well
+  int result_count = size - skip_count;
+  if (result_count < 0)
+    result_count = 0;
+  if (result_count > max_depth)
+    result_count = max_depth;
+  for (int i = 0; i < result_count; i++)
+    result[i] = stack[i + skip_count];
+
+#if IS_STACK_FRAMES
+  // No implementation for finding out the stack frame sizes yet.
+  memset(sizes, 0, sizeof(*sizes) * result_count);
+#endif
+
+  return result_count;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_generic_fp-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_generic_fp-inl.h
new file mode 100644
index 000000000..d45810978
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_generic_fp-inl.h
@@ -0,0 +1,222 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2021, gperftools Contributors
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This file contains "generic" stack frame pointer backtracing
+// code. Attempt is made to minimize amount of arch- or os-specific
+// code and keep everything as generic as possible. Currently
+// supported are x86-64, aarch64 and riscv.
+#ifndef BASE_STACKTRACE_GENERIC_FP_INL_H_
+#define BASE_STACKTRACE_GENERIC_FP_INL_H_
+
+#if defined(HAVE_SYS_UCONTEXT_H)
+#include 
+#elif defined(HAVE_UCONTEXT_H)
+#include 
+#endif
+
+// This is only used on OS-es with mmap support.
+#include 
+
+// Set this to true to disable "probing" of addresses that are read to
+// make backtracing less-safe, but faster.
+#ifndef TCMALLOC_UNSAFE_GENERIC_FP_STACKTRACE
+#define TCMALLOC_UNSAFE_GENERIC_FP_STACKTRACE 0
+#endif
+
+namespace {
+namespace stacktrace_generic_fp {
+
+struct frame {
+  uintptr_t parent;
+  void* pc;
+};
+
+frame* adjust_fp(frame* f) {
+#ifdef __riscv
+  return f - 1;
+#else
+  return f;
+#endif
+}
+
+static bool CheckPageIsReadable(void* ptr, void* checked_ptr) {
+  static uintptr_t pagesize;
+  if (pagesize == 0) {
+    pagesize = getpagesize();
+  }
+
+  uintptr_t addr = reinterpret_cast(ptr);
+  uintptr_t parent_frame = reinterpret_cast(checked_ptr);
+
+  parent_frame &= ~(pagesize - 1);
+  addr &= ~(pagesize - 1);
+
+  if (parent_frame != 0 && addr == parent_frame) {
+    return true;
+  }
+
+  return (msync(reinterpret_cast(addr), pagesize, MS_ASYNC) == 0);
+}
+
+ATTRIBUTE_NOINLINE // forces architectures with link register to save it
+int capture(void **result, int max_depth, int skip_count,
+            void* initial_frame, void* const * initial_pc) {
+  int i = 0;
+
+  if (initial_pc != nullptr) {
+    // This is 'with ucontext' case. We take first pc from ucontext
+    // and then skip_count is ignored as we assume that caller only
+    // needed stack trace up to signal handler frame.
+    skip_count = 0;
+    if (max_depth == 0) {
+      return 0;
+    }
+    result[0] = *initial_pc;
+    i++;
+  }
+
+  constexpr uintptr_t kTooSmallAddr = 16 << 10;
+  constexpr uintptr_t kFrameSizeThreshold = 128 << 10;
+
+  // This is simplistic yet. Here we're targeting x86-64, aarch64 and
+  // riscv. All have 16 bytes stack alignment (even 32 bit
+  // riscv). This can be made more elaborate as we consider more
+  // architectures. Note, it allows us to only readability of check
+  // f->parent address.
+  constexpr uintptr_t kAlignment = 16;
+
+  uintptr_t initial_frame_addr = reinterpret_cast(initial_frame);
+  if ((initial_frame_addr & (kAlignment - 1)) != 0) {
+    return i;
+  }
+  if (initial_frame_addr < kTooSmallAddr) {
+    return i;
+  }
+
+  frame* prev_f = nullptr;
+  frame *f = adjust_fp(reinterpret_cast(initial_frame));
+
+  while (i < max_depth) {
+    if (!TCMALLOC_UNSAFE_GENERIC_FP_STACKTRACE
+        && !CheckPageIsReadable(&f->parent, prev_f)) {
+      break;
+    }
+
+    void* pc = f->pc;
+    if (pc == nullptr) {
+      break;
+    }
+
+    if (i >= skip_count) {
+      result[i - skip_count] = pc;
+    }
+
+    i++;
+
+    uintptr_t parent_frame_addr = f->parent;
+    uintptr_t child_frame_addr = reinterpret_cast(f);
+
+    if (parent_frame_addr < kTooSmallAddr) {
+      break;
+    }
+    // stack grows towards smaller addresses, so if we didn't see
+    // frame address increased (going from child to parent), it is bad
+    // frame. We also test if frame is too big since that is another
+    // sign of bad stack frame.
+    if (parent_frame_addr - child_frame_addr > kFrameSizeThreshold) {
+      break;
+    }
+
+    if ((parent_frame_addr & (kAlignment - 1)) != 0) {
+      // not aligned, so we keep it safe and assume frame is bogus
+      break;
+    }
+
+    prev_f = f;
+
+    f = adjust_fp(reinterpret_cast(parent_frame_addr));
+  }
+  return i;
+}
+
+}  // namespace stacktrace_generic_fp
+}  // namespace
+
+#endif  // BASE_STACKTRACE_GENERIC_FP_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+
+static int GET_STACK_TRACE_OR_FRAMES {
+#if IS_STACK_FRAMES
+  memset(sizes, 0, sizeof(*sizes) * max_depth);
+#endif
+
+  // one for this function
+  skip_count += 1;
+
+  void* const * initial_pc = nullptr;
+  void* initial_frame = __builtin_frame_address(0);
+
+#if IS_WITH_CONTEXT
+  if (ucp) {
+    auto uc = static_cast(ucp);
+#ifdef __riscv
+    initial_pc = reinterpret_cast(&uc->uc_mcontext.__gregs[REG_PC]);
+    initial_frame = reinterpret_cast(uc->uc_mcontext.__gregs[REG_S0]);
+#elif __aarch64__
+    initial_pc = reinterpret_cast(&uc->uc_mcontext.pc);
+    initial_frame = reinterpret_cast(uc->uc_mcontext.regs[29]);
+#else
+    initial_pc = reinterpret_cast(&uc->uc_mcontext.gregs[REG_RIP]);
+    initial_frame = reinterpret_cast(uc->uc_mcontext.gregs[REG_RBP]);
+#endif
+  }
+#endif  // IS_WITH_CONTEXT
+
+  int n = stacktrace_generic_fp::capture(result, max_depth, skip_count,
+                                         initial_frame, initial_pc);
+
+  // make sure we don't tail-call capture
+  (void)*(const_cast(result));
+  return n;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_impl_setup-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_impl_setup-inl.h
new file mode 100644
index 000000000..698c5b381
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_impl_setup-inl.h
@@ -0,0 +1,94 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// NOTE: this is NOT to be #include-d normally. It's internal
+// implementation detail of stacktrace.cc
+//
+
+// Copyright (c) 2014, gperftools Contributors.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Aliaksey Kandratsenka 
+//
+//  based on stacktrace.cc and stacktrace_config.h by Sanjay Ghemawat
+//  and Paul Pluzhnikov from Google Inc
+
+#define SIS_CONCAT2(a, b) a##b
+#define SIS_CONCAT(a, b) SIS_CONCAT2(a,b)
+
+#define SIS_STRINGIFY(a) SIS_STRINGIFY2(a)
+#define SIS_STRINGIFY2(a) #a
+
+#define IS_STACK_FRAMES 0
+#define IS_WITH_CONTEXT 0
+#define GET_STACK_TRACE_OR_FRAMES \
+  SIS_CONCAT(GetStackTrace_, GST_SUFFIX)(void **result, int max_depth, int skip_count)
+#include STACKTRACE_INL_HEADER
+#undef IS_STACK_FRAMES
+#undef IS_WITH_CONTEXT
+#undef GET_STACK_TRACE_OR_FRAMES
+
+#define IS_STACK_FRAMES 1
+#define IS_WITH_CONTEXT 0
+#define GET_STACK_TRACE_OR_FRAMES \
+  SIS_CONCAT(GetStackFrames_, GST_SUFFIX)(void **result, int *sizes, int max_depth, int skip_count)
+#include STACKTRACE_INL_HEADER
+#undef IS_STACK_FRAMES
+#undef IS_WITH_CONTEXT
+#undef GET_STACK_TRACE_OR_FRAMES
+
+#define IS_STACK_FRAMES 0
+#define IS_WITH_CONTEXT 1
+#define GET_STACK_TRACE_OR_FRAMES \
+  SIS_CONCAT(GetStackTraceWithContext_, GST_SUFFIX)(void **result, int max_depth, \
+                                                   int skip_count, const void *ucp)
+#include STACKTRACE_INL_HEADER
+#undef IS_STACK_FRAMES
+#undef IS_WITH_CONTEXT
+#undef GET_STACK_TRACE_OR_FRAMES
+
+#define IS_STACK_FRAMES 1
+#define IS_WITH_CONTEXT 1
+#define GET_STACK_TRACE_OR_FRAMES \
+  SIS_CONCAT(GetStackFramesWithContext_, GST_SUFFIX)(void **result, int *sizes, int max_depth, \
+                                                    int skip_count, const void *ucp)
+#include STACKTRACE_INL_HEADER
+#undef IS_STACK_FRAMES
+#undef IS_WITH_CONTEXT
+#undef GET_STACK_TRACE_OR_FRAMES
+
+static GetStackImplementation SIS_CONCAT(impl__,GST_SUFFIX) = {
+  SIS_CONCAT(GetStackFrames_, GST_SUFFIX),
+  SIS_CONCAT(GetStackFramesWithContext_, GST_SUFFIX),
+  SIS_CONCAT(GetStackTrace_, GST_SUFFIX),
+  SIS_CONCAT(GetStackTraceWithContext_, GST_SUFFIX),
+  SIS_STRINGIFY(GST_SUFFIX)
+};
+
+#undef SIS_CONCAT2
+#undef SIS_CONCAT
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_instrument-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_instrument-inl.h
new file mode 100644
index 000000000..c631765c8
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_instrument-inl.h
@@ -0,0 +1,155 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2013, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Jean Lee 
+// based on gcc Code-Gen-Options "-finstrument-functions" listed in
+// http://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html .
+// Should run configure with CXXFLAGS="-finstrument-functions".
+
+// This file is a backtrace implementation for systems :
+// * The glibc implementation of backtrace() may cause a call to malloc,
+//   and cause a deadlock in HeapProfiler.
+// * The libunwind implementation prints no backtrace.
+
+// The backtrace arrays are stored in "thread_back_trace" variable.
+// Maybe to use thread local storage is better and should save memorys.
+
+#ifndef BASE_STACKTRACE_INSTRUMENT_INL_H_
+#define BASE_STACKTRACE_INSTRUMENT_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+#include 
+#include 
+#include 
+#include 
+#include "gperftools/stacktrace.h"
+
+#define gettid() syscall(__NR_gettid)
+#ifndef __x86_64__
+#define MAX_THREAD (32768)
+#else
+#define MAX_THREAD (65536)
+#endif
+#define MAX_DEPTH  (30)
+#define ATTRIBUTE_NOINSTRUMENT __attribute__ ((no_instrument_function))
+
+typedef struct {
+  int   stack_depth;
+  void* frame[MAX_DEPTH];
+}BACK_TRACE;
+
+static BACK_TRACE thread_back_trace[MAX_THREAD];
+extern "C" {
+void __cyg_profile_func_enter(void *func_address,
+                              void *call_site) ATTRIBUTE_NOINSTRUMENT;
+void __cyg_profile_func_enter(void *func_address, void *call_site) {
+  (void)func_address;
+
+  BACK_TRACE* backtrace = thread_back_trace + gettid();
+  int stack_depth = backtrace->stack_depth;
+  backtrace->stack_depth = stack_depth + 1;
+  if ( stack_depth >= MAX_DEPTH ) {
+    return;
+  }
+  backtrace->frame[stack_depth] = call_site;
+}
+
+void __cyg_profile_func_exit(void *func_address,
+                             void *call_site) ATTRIBUTE_NOINSTRUMENT;
+void __cyg_profile_func_exit(void *func_address, void *call_site) {
+  (void)func_address;
+  (void)call_site;
+
+  BACK_TRACE* backtrace = thread_back_trace + gettid();
+  int stack_depth = backtrace->stack_depth;
+  backtrace->stack_depth = stack_depth - 1;
+  if ( stack_depth >= MAX_DEPTH ) {
+    return;
+  }
+  backtrace->frame[stack_depth] = 0;
+}
+}  // extern "C"
+
+static int cyg_backtrace(void **buffer, int size) {
+  BACK_TRACE* backtrace = thread_back_trace + gettid();
+  int stack_depth = backtrace->stack_depth;
+  if ( stack_depth >= MAX_DEPTH ) {
+    stack_depth = MAX_DEPTH;
+  }
+  int nSize = (size > stack_depth) ? stack_depth : size;
+  for (int i = 0; i < nSize; i++) {
+  buffer[i] = backtrace->frame[nSize - i - 1];
+  }
+
+  return nSize;
+}
+
+#endif  // BASE_STACKTRACE_INSTRUMENT_INL_H_
+
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+static int GET_STACK_TRACE_OR_FRAMES {
+  static const int kStackLength = 64;
+  void * stack[kStackLength];
+  int size;
+  memset(stack, 0, sizeof(stack));
+
+  size = cyg_backtrace(stack, kStackLength);
+  skip_count += 2;  // we want to skip the current and parent frame as well
+  int result_count = size - skip_count;
+  if (result_count < 0)
+    result_count = 0;
+  if (result_count > max_depth)
+    result_count = max_depth;
+  for (int i = 0; i < result_count; i++)
+    result[i] = stack[i + skip_count];
+
+#if IS_STACK_FRAMES
+  // No implementation for finding out the stack frame sizes yet.
+  memset(sizes, 0, sizeof(*sizes) * result_count);
+#endif
+
+  return result_count;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_libgcc-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_libgcc-inl.h
new file mode 100644
index 000000000..ce9cf5196
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_libgcc-inl.h
@@ -0,0 +1,111 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2016, gperftools Contributors
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This file implements backtrace capturing via libgcc's
+// _Unwind_Backtrace. This generally works almost always. It will fail
+// sometimes when we're trying to capture backtrace from signal
+// handler (i.e. in cpu profiler) while some C++ code is throwing
+// exception.
+
+#ifndef BASE_STACKTRACE_LIBGCC_INL_H_
+#define BASE_STACKTRACE_LIBGCC_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+extern "C" {
+#include 
+#include    // for memset()
+}
+
+#include 
+
+#include "gperftools/stacktrace.h"
+
+struct libgcc_backtrace_data {
+  void **array;
+  int skip;
+  int pos;
+  int limit;
+};
+
+static _Unwind_Reason_Code libgcc_backtrace_helper(struct _Unwind_Context *ctx,
+                                                   void *_data) {
+  libgcc_backtrace_data *data =
+    reinterpret_cast(_data);
+
+  if (data->skip > 0) {
+    data->skip--;
+    return _URC_NO_REASON;
+  }
+
+  if (data->pos < data->limit) {
+    void *ip = reinterpret_cast(_Unwind_GetIP(ctx));;
+    data->array[data->pos++] = ip;
+  }
+
+  return _URC_NO_REASON;
+}
+
+#endif  // BASE_STACKTRACE_LIBGCC_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+static int GET_STACK_TRACE_OR_FRAMES {
+  libgcc_backtrace_data data;
+  data.array = result;
+  // we're also skipping current and parent's frame
+  data.skip = skip_count + 2;
+  data.pos = 0;
+  data.limit = max_depth;
+
+  _Unwind_Backtrace(libgcc_backtrace_helper, &data);
+
+  if (data.pos > 1 && data.array[data.pos - 1] == NULL)
+    --data.pos;
+
+#if IS_STACK_FRAMES
+  // No implementation for finding out the stack frame sizes.
+  memset(sizes, 0, sizeof(*sizes) * data.pos);
+#endif
+
+  return data.pos;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_libunwind-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_libunwind-inl.h
new file mode 100644
index 000000000..6f361ecd3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_libunwind-inl.h
@@ -0,0 +1,152 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Arun Sharma
+//
+// Produce stack trace using libunwind
+
+#ifndef BASE_STACKTRACE_LIBINWIND_INL_H_
+#define BASE_STACKTRACE_LIBINWIND_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+// We only need local unwinder.
+#define UNW_LOCAL_ONLY
+
+extern "C" {
+#include 
+#include    // for memset()
+#include 
+}
+#include "gperftools/stacktrace.h"
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+
+// Sometimes, we can try to get a stack trace from within a stack
+// trace, because libunwind can call mmap (maybe indirectly via an
+// internal mmap based memory allocator), and that mmap gets trapped
+// and causes a stack-trace request.  If were to try to honor that
+// recursive request, we'd end up with infinite recursion or deadlock.
+// Luckily, it's safe to ignore those subsequent traces.  In such
+// cases, we return 0 to indicate the situation.
+static __thread int recursive ATTR_INITIAL_EXEC;
+
+#if defined(TCMALLOC_ENABLE_UNWIND_FROM_UCONTEXT) && (defined(__i386__) || defined(__x86_64__)) && defined(__GNU_LIBRARY__)
+#define BASE_STACKTRACE_UNW_CONTEXT_IS_UCONTEXT 1
+#endif
+
+#endif  // BASE_STACKTRACE_LIBINWIND_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+static int GET_STACK_TRACE_OR_FRAMES {
+  void *ip;
+  int n = 0;
+  unw_cursor_t cursor;
+  unw_context_t uc;
+#if IS_STACK_FRAMES
+  unw_word_t sp = 0, next_sp = 0;
+#endif
+
+  if (recursive) {
+    return 0;
+  }
+  ++recursive;
+
+#if (IS_WITH_CONTEXT && defined(BASE_STACKTRACE_UNW_CONTEXT_IS_UCONTEXT))
+  if (ucp) {
+    uc = *(static_cast(const_cast(ucp)));
+    /* this is a bit weird. profiler.cc calls us with signal's ucontext
+     * yet passing us 2 as skip_count and essentially assuming we won't
+     * use ucontext. */
+    /* In order to fix that I'm going to assume that if ucp is
+     * non-null we're asked to ignore skip_count in case we're
+     * able to use ucp */
+    skip_count = 0;
+  } else {
+    unw_getcontext(&uc);
+    skip_count += 2;         // Do not include current and parent frame
+  }
+#else
+  unw_getcontext(&uc);
+  skip_count += 2;         // Do not include current and parent frame
+#endif
+
+  int ret = unw_init_local(&cursor, &uc);
+  assert(ret >= 0);
+
+  while (skip_count--) {
+    if (unw_step(&cursor) <= 0) {
+      goto out;
+    }
+#if IS_STACK_FRAMES
+    if (unw_get_reg(&cursor, UNW_REG_SP, &next_sp)) {
+      goto out;
+    }
+#endif
+  }
+
+  while (n < max_depth) {
+    if (unw_get_reg(&cursor, UNW_REG_IP, (unw_word_t *) &ip) < 0) {
+      break;
+    }
+#if IS_STACK_FRAMES
+    sizes[n] = 0;
+#endif
+    result[n++] = ip;
+    if (unw_step(&cursor) <= 0) {
+      break;
+    }
+#if IS_STACK_FRAMES
+    sp = next_sp;
+    if (unw_get_reg(&cursor, UNW_REG_SP, &next_sp) , 0) {
+      break;
+    }
+    sizes[n - 1] = next_sp - sp;
+#endif
+  }
+out:
+  --recursive;
+  return n;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-darwin-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-darwin-inl.h
new file mode 100644
index 000000000..3f6c3670f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-darwin-inl.h
@@ -0,0 +1,163 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Produce stack trace.  ABI documentation reference can be found at:
+// * PowerPC32 ABI: https://www.power.org/documentation/
+// power-architecture-32-bit-abi-supplement-1-0-embeddedlinuxunified/
+// * PowerPC64 ABI:
+// http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK
+
+#ifndef BASE_STACKTRACE_POWERPC_INL_H_
+#define BASE_STACKTRACE_POWERPC_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+#include    // for uintptr_t
+#include    // for NULL
+#include 
+
+// Given a pointer to a stack frame, locate and return the calling
+// stackframe, or return NULL if no stackframe can be found. Perform sanity
+// checks (the strictness of which is controlled by the boolean parameter
+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
+template
+static void **NextStackFrame(void **old_sp) {
+  void **new_sp = (void **) *old_sp;
+
+  // Check that the transition from frame pointer old_sp to frame
+  // pointer new_sp isn't clearly bogus
+  if (STRICT_UNWINDING) {
+    // With the stack growing downwards, older stack frame must be
+    // at a greater address that the current one.
+    if (new_sp <= old_sp) return NULL;
+    // Assume stack frames larger than 100,000 bytes are bogus.
+    if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL;
+  } else {
+    // In the non-strict mode, allow discontiguous stack frames.
+    // (alternate-signal-stacks for example).
+    if (new_sp == old_sp) return NULL;
+    // And allow frames upto about 1MB.
+    if ((new_sp > old_sp)
+        && ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return NULL;
+  }
+  if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL;
+  return new_sp;
+}
+
+// This ensures that GetStackTrace stes up the Link Register properly.
+void StacktracePowerPCDummyFunction() __attribute__((noinline));
+void StacktracePowerPCDummyFunction() { __asm__ volatile(""); }
+#endif  // BASE_STACKTRACE_POWERPC_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+int GET_STACK_TRACE_OR_FRAMES {
+  void **sp;
+  // Apple OS X uses an old version of gnu as -- both Darwin 7.9.0 (Panther)
+  // and Darwin 8.8.1 (Tiger) use as 1.38.  This means we have to use a
+  // different asm syntax.  I don't know quite the best way to discriminate
+  // systems using the old as from the new one; I've gone with __APPLE__.
+  // TODO(csilvers): use autoconf instead, to look for 'as --version' == 1 or 2
+#ifdef __FreeBSD__
+  __asm__ volatile ("mr %0,1" : "=r" (sp));
+#else
+  __asm__ volatile ("mr %0,r1" : "=r" (sp));
+#endif
+
+  // On PowerPC, the "Link Register" or "Link Record" (LR), is a stack
+  // entry that holds the return address of the subroutine call (what
+  // instruction we run after our function finishes).  This is the
+  // same as the stack-pointer of our parent routine, which is what we
+  // want here.  While the compiler will always(?) set up LR for
+  // subroutine calls, it may not for leaf functions (such as this one).
+  // This routine forces the compiler (at least gcc) to push it anyway.
+  StacktracePowerPCDummyFunction();
+
+#if IS_STACK_FRAMES
+  // Note we do *not* increment skip_count here for the SYSV ABI.  If
+  // we did, the list of stack frames wouldn't properly match up with
+  // the list of return addresses.  Note this means the top pc entry
+  // is probably bogus for linux/ppc (and other SYSV-ABI systems).
+#else
+  // The LR save area is used by the callee, so the top entry is bogus.
+  skip_count++;
+#endif
+
+  int n = 0;
+  while (sp && n < max_depth) {
+    // The GetStackFrames routine is called when we are in some
+    // informational context (the failure signal handler for example).
+    // Use the non-strict unwinding rules to produce a stack trace
+    // that is as complete as possible (even if it contains a few
+    // bogus entries in some rare cases).
+    void **next_sp = NextStackFrame(sp);
+
+    if (skip_count > 0) {
+      skip_count--;
+    } else {
+      // PowerPC has 3 main ABIs, which say where in the stack the
+      // Link Register is.  For DARWIN and AIX (used by apple and
+      // linux ppc64), it's in sp[2].  For SYSV (used by linux ppc),
+      // it's in sp[1].
+#if defined(__PPC64__)
+      // This check is in case the compiler doesn't define _CALL_AIX/etc.
+      result[n] = *(sp+2);
+#elif defined(__linux)
+      // This check is in case the compiler doesn't define _CALL_SYSV.
+      result[n] = *(sp+1);
+#endif
+
+#if IS_STACK_FRAMES
+      if (next_sp > sp) {
+        sizes[n] = (uintptr_t)next_sp - (uintptr_t)sp;
+      } else {
+        // A frame-size of 0 is used to indicate unknown frame size.
+        sizes[n] = 0;
+      }
+#endif
+      n++;
+    }
+    sp = next_sp;
+  }
+  return n;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-inl.h
new file mode 100644
index 000000000..124bc4e83
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-inl.h
@@ -0,0 +1,176 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// Produce stack trace.  I'm guessing (hoping!) the code is much like
+// for x86.  For apple machines, at least, it seems to be; see
+//    http://developer.apple.com/documentation/mac/runtimehtml/RTArch-59.html
+//    http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK
+// Linux has similar code: http://patchwork.ozlabs.org/linuxppc/patch?id=8882
+
+#ifndef BASE_STACKTRACE_POWERPC_INL_H_
+#define BASE_STACKTRACE_POWERPC_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+#include    // for uintptr_t
+#include    // for NULL
+#include 
+
+struct layout_ppc {
+  struct layout_ppc *next;
+#if defined(__APPLE__) || (defined(__linux) && defined(__PPC64__))
+  long condition_register;
+#endif
+  void *return_addr;
+};
+
+// Given a pointer to a stack frame, locate and return the calling
+// stackframe, or return NULL if no stackframe can be found. Perform sanity
+// checks (the strictness of which is controlled by the boolean parameter
+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
+template
+static layout_ppc *NextStackFrame(layout_ppc *current) {
+  uintptr_t old_sp = (uintptr_t)(current);
+  uintptr_t new_sp = (uintptr_t)(current->next);
+
+  // Check that the transition from frame pointer old_sp to frame
+  // pointer new_sp isn't clearly bogus
+  if (STRICT_UNWINDING) {
+    // With the stack growing downwards, older stack frame must be
+    // at a greater address that the current one.
+    if (new_sp <= old_sp)
+      return NULL;
+    // Assume stack frames larger than 100,000 bytes are bogus.
+    if (new_sp - old_sp > 100000)
+      return NULL;
+  } else {
+    // In the non-strict mode, allow discontiguous stack frames.
+    // (alternate-signal-stacks for example).
+    if (new_sp == old_sp)
+      return NULL;
+    // And allow frames upto about 1MB.
+    if ((new_sp > old_sp) && (new_sp - old_sp > 1000000))
+      return NULL;
+  }
+  if (new_sp & (sizeof(void *) - 1))
+    return NULL;
+  return current->next;
+}
+
+// This ensures that GetStackTrace stes up the Link Register properly.
+void StacktracePowerPCDummyFunction() __attribute__((noinline));
+void StacktracePowerPCDummyFunction() { __asm__ volatile(""); }
+#endif  // BASE_STACKTRACE_POWERPC_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// Load instruction used on top-of-stack get.
+#if defined(__PPC64__) || defined(__LP64__)
+# define LOAD "ld"
+#else
+# define LOAD "lwz"
+#endif
+
+#if defined(__linux__) && defined(__PPC__)
+# define TOP_STACK "%0,0(1)"
+#elif defined(__MACH__) && defined(__APPLE__)
+// Apple OS X uses an old version of gnu as -- both Darwin 7.9.0 (Panther)
+// and Darwin 8.8.1 (Tiger) use as 1.38.  This means we have to use a
+// different asm syntax.  I don't know quite the best way to discriminate
+// systems using the old as from the new one; I've gone with __APPLE__.
+// TODO(csilvers): use autoconf instead, to look for 'as --version' == 1 or 2
+# define TOP_STACK "%0,0(r1)"
+#endif
+
+
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+static int GET_STACK_TRACE_OR_FRAMES {
+  layout_ppc *current;
+  int n;
+
+  // Force GCC to spill LR.
+  asm volatile ("" : "=l"(current));
+
+  // Get the address on top-of-stack
+  asm volatile (LOAD " " TOP_STACK : "=r"(current));
+
+  StacktracePowerPCDummyFunction();
+
+  n = 0;
+  skip_count++; // skip parent's frame due to indirection in
+                // stacktrace.cc
+  while (current && n < max_depth) {
+
+    // The GetStackFrames routine is called when we are in some
+    // informational context (the failure signal handler for example).
+    // Use the non-strict unwinding rules to produce a stack trace
+    // that is as complete as possible (even if it contains a few
+    // bogus entries in some rare cases).
+    layout_ppc *next = NextStackFrame(current);
+    if (skip_count > 0) {
+      skip_count--;
+    } else {
+      result[n] = current->return_addr;
+#if IS_STACK_FRAMES
+      if (next > current) {
+        sizes[n] = (uintptr_t)next - (uintptr_t)current;
+      } else {
+        // A frame-size of 0 is used to indicate unknown frame size.
+        sizes[n] = 0;
+      }
+#endif
+      n++;
+    }
+    current = next;
+  }
+
+  // It's possible the second-last stack frame can't return
+  // (that is, it's __libc_start_main), in which case
+  // the CRT startup code will have set its LR to 'NULL'.
+  if (n > 0 && result[n-1] == NULL)
+    n--;
+
+  return n;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-linux-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-linux-inl.h
new file mode 100644
index 000000000..a301a46ad
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_powerpc-linux-inl.h
@@ -0,0 +1,231 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// Produce stack trace.  ABI documentation reference can be found at:
+// * PowerPC32 ABI: https://www.power.org/documentation/
+// power-architecture-32-bit-abi-supplement-1-0-embeddedlinuxunified/
+// * PowerPC64 ABI:
+// http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK
+
+#ifndef BASE_STACKTRACE_POWERPC_INL_H_
+#define BASE_STACKTRACE_POWERPC_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+#include    // for uintptr_t
+#include    // for NULL
+#include   // for siginfo_t
+#include 
+#include 
+
+#if defined(HAVE_SYS_UCONTEXT_H)
+#include 
+#elif defined(HAVE_UCONTEXT_H)
+#include   // for ucontext_t
+#endif
+
+// PowerPC64 Little Endian follows BE wrt. backchain, condition register,
+// and LR save area, so no need to adjust the reading struct.
+struct layout_ppc {
+  struct layout_ppc *next;
+#ifdef __PPC64__
+  long condition_register;
+#endif
+  void *return_addr;
+};
+
+// Signal callbacks are handled by the vDSO symbol:
+//
+// * PowerPC64 Linux (arch/powerpc/kernel/vdso64/sigtramp.S):
+//   __kernel_sigtramp_rt64
+// * PowerPC32 Linux (arch/powerpc/kernel/vdso32/sigtramp.S):
+//   __kernel_sigtramp32
+//   __kernel_sigtramp_rt32
+//
+// So a backtrace may need to specially handling if the symbol readed is
+// the signal trampoline.
+
+// Given a pointer to a stack frame, locate and return the calling
+// stackframe, or return NULL if no stackframe can be found. Perform sanity
+// checks (the strictness of which is controlled by the boolean parameter
+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
+template
+static layout_ppc *NextStackFrame(layout_ppc *current) {
+  uintptr_t old_sp = (uintptr_t)(current);
+  uintptr_t new_sp = (uintptr_t)(current->next);
+
+  // Check that the transition from frame pointer old_sp to frame
+  // pointer new_sp isn't clearly bogus
+  if (STRICT_UNWINDING) {
+    // With the stack growing downwards, older stack frame must be
+    // at a greater address that the current one.
+    if (new_sp <= old_sp)
+      return NULL;
+    // Assume stack frames larger than 100,000 bytes are bogus.
+    if (new_sp - old_sp > 100000)
+      return NULL;
+  } else {
+    // In the non-strict mode, allow discontiguous stack frames.
+    // (alternate-signal-stacks for example).
+    if (new_sp == old_sp)
+      return NULL;
+    // And allow frames upto about 1MB.
+    if ((new_sp > old_sp) && (new_sp - old_sp > 1000000))
+      return NULL;
+  }
+  if (new_sp & (sizeof(void *) - 1))
+    return NULL;
+  return current->next;
+}
+
+// This ensures that GetStackTrace stes up the Link Register properly.
+void StacktracePowerPCDummyFunction() __attribute__((noinline));
+void StacktracePowerPCDummyFunction() { __asm__ volatile(""); }
+#endif  // BASE_STACKTRACE_POWERPC_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// Load instruction used on top-of-stack get.
+#if defined(__PPC64__) || defined(__LP64__)
+# define LOAD "ld"
+#else
+# define LOAD "lwz"
+#endif
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+static int GET_STACK_TRACE_OR_FRAMES {
+  layout_ppc *current;
+  int n;
+
+  // Get the address on top-of-stack
+  current = reinterpret_cast (__builtin_frame_address (0));
+  // And ignore the current symbol
+  current = current->next;
+
+  StacktracePowerPCDummyFunction();
+
+  n = 0;
+  skip_count++; // skip parent's frame due to indirection in
+                // stacktrace.cc
+
+  base::VDSOSupport vdso;
+  base::ElfMemImage::SymbolInfo rt_sigreturn_symbol_info;
+#ifdef __PPC64__
+  const void *sigtramp64_vdso = 0;
+  if (vdso.LookupSymbol("__kernel_sigtramp_rt64", "LINUX_2.6.15", STT_NOTYPE,
+                        &rt_sigreturn_symbol_info))
+    sigtramp64_vdso = rt_sigreturn_symbol_info.address;
+#else
+  const void *sigtramp32_vdso = 0;
+  if (vdso.LookupSymbol("__kernel_sigtramp32", "LINUX_2.6.15", STT_NOTYPE,
+                        &rt_sigreturn_symbol_info))
+    sigtramp32_vdso = rt_sigreturn_symbol_info.address;
+  const void *sigtramp32_rt_vdso = 0;
+  if (vdso.LookupSymbol("__kernel_sigtramp_rt32", "LINUX_2.6.15", STT_NOTYPE,
+                        &rt_sigreturn_symbol_info))
+    sigtramp32_rt_vdso = rt_sigreturn_symbol_info.address;
+#endif
+
+  while (current && n < max_depth) {
+
+    // The GetStackFrames routine is called when we are in some
+    // informational context (the failure signal handler for example).
+    // Use the non-strict unwinding rules to produce a stack trace
+    // that is as complete as possible (even if it contains a few
+    // bogus entries in some rare cases).
+    layout_ppc *next = NextStackFrame(current);
+    if (skip_count > 0) {
+      skip_count--;
+    } else {
+      result[n] = current->return_addr;
+#ifdef __PPC64__
+      if (sigtramp64_vdso && (sigtramp64_vdso == current->return_addr)) {
+        struct signal_frame_64 {
+          char dummy[128];
+          ucontext_t uc;
+        // We don't care about the rest, since the IP value is at 'uc' field.
+        } *sigframe = reinterpret_cast(current);
+        result[n] = (void*) sigframe->uc.uc_mcontext.gp_regs[PT_NIP];
+      }
+#else
+      if (sigtramp32_vdso && (sigtramp32_vdso == current->return_addr)) {
+        struct signal_frame_32 {
+          char dummy[64];
+          struct sigcontext sctx;
+          mcontext_t mctx;
+          // We don't care about the rest, since IP value is at 'mctx' field.
+        } *sigframe = reinterpret_cast(current);
+        result[n] = (void*) sigframe->mctx.gregs[PT_NIP];
+      } else if (sigtramp32_rt_vdso && (sigtramp32_rt_vdso == current->return_addr)) {
+        struct rt_signal_frame_32 {
+          char dummy[64 + 16];
+          siginfo_t info;
+          ucontext_t uc;
+          // We don't care about the rest, since IP value is at 'uc' field.A
+        } *sigframe = reinterpret_cast(current);
+        result[n] = (void*) sigframe->uc.uc_mcontext.uc_regs->gregs[PT_NIP];
+      }
+#endif
+
+#if IS_STACK_FRAMES
+      if (next > current) {
+        sizes[n] = (uintptr_t)next - (uintptr_t)current;
+      } else {
+        // A frame-size of 0 is used to indicate unknown frame size.
+        sizes[n] = 0;
+      }
+#endif
+      n++;
+    }
+    current = next;
+  }
+
+  // It's possible the second-last stack frame can't return
+  // (that is, it's __libc_start_main), in which case
+  // the CRT startup code will have set its LR to 'NULL'.
+  if (n > 0 && result[n-1] == NULL)
+    n--;
+
+  return n;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_win32-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_win32-inl.h
new file mode 100644
index 000000000..663e9a5bf
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_win32-inl.h
@@ -0,0 +1,107 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---
+// Produces a stack trace for Windows.  Normally, one could use
+// stacktrace_x86-inl.h or stacktrace_x86_64-inl.h -- and indeed, that
+// should work for binaries compiled using MSVC in "debug" mode.
+// However, in "release" mode, Windows uses frame-pointer
+// optimization, which makes getting a stack trace very difficult.
+//
+// There are several approaches one can take.  One is to use Windows
+// intrinsics like StackWalk64.  These can work, but have restrictions
+// on how successful they can be.  Another attempt is to write a
+// version of stacktrace_x86-inl.h that has heuristic support for
+// dealing with FPO, similar to what WinDbg does (see
+// http://www.nynaeve.net/?p=97).
+//
+// The solution we've ended up doing is to call the undocumented
+// windows function RtlCaptureStackBackTrace, which probably doesn't
+// work with FPO but at least is fast, and doesn't require a symbol
+// server.
+//
+// This code is inspired by a patch from David Vitek:
+//   http://code.google.com/p/gperftools/issues/detail?id=83
+
+#ifndef BASE_STACKTRACE_WIN32_INL_H_
+#define BASE_STACKTRACE_WIN32_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+#include "config.h"
+#include     // for GetProcAddress and GetModuleHandle
+#include 
+
+typedef USHORT NTAPI RtlCaptureStackBackTrace_Function(
+    IN ULONG frames_to_skip,
+    IN ULONG frames_to_capture,
+    OUT PVOID *backtrace,
+    OUT PULONG backtrace_hash);
+
+// Load the function we need at static init time, where we don't have
+// to worry about someone else holding the loader's lock.
+static RtlCaptureStackBackTrace_Function* const RtlCaptureStackBackTrace_fn =
+   (RtlCaptureStackBackTrace_Function*)
+   GetProcAddress(GetModuleHandleA("ntdll.dll"), "RtlCaptureStackBackTrace");
+
+static int GetStackTrace_win32(void** result, int max_depth,
+                               int skip_count) {
+  if (!RtlCaptureStackBackTrace_fn) {
+    // TODO(csilvers): should we log an error here?
+    return 0;     // can't find a stacktrace with no function to call
+  }
+  return (int)RtlCaptureStackBackTrace_fn(skip_count + 3, max_depth,
+                                          result, 0);
+}
+
+static int not_implemented(void) {
+  assert(0 == "Not yet implemented");
+  return 0;
+}
+
+static int GetStackFrames_win32(void** /* pcs */,
+                                int* /* sizes */,
+                                int /* max_depth */,
+                                int /* skip_count */) {
+  return not_implemented();
+}
+
+static int GetStackFramesWithContext_win32(void** result, int* sizes, int max_depth,
+                                           int skip_count, const void *uc) {
+  return not_implemented();
+}
+
+static int GetStackTraceWithContext_win32(void** result, int max_depth,
+                                          int skip_count, const void *uc) {
+  return not_implemented();
+}
+
+
+#endif  // BASE_STACKTRACE_WIN32_INL_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/stacktrace_x86-inl.h b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_x86-inl.h
new file mode 100644
index 000000000..46eb5d82d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/stacktrace_x86-inl.h
@@ -0,0 +1,354 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Produce stack trace
+
+#ifndef BASE_STACKTRACE_X86_INL_H_
+#define BASE_STACKTRACE_X86_INL_H_
+// Note: this file is included into stacktrace.cc more than once.
+// Anything that should only be defined once should be here:
+
+#include "config.h"
+#include    // for NULL
+#include 
+#if defined(HAVE_SYS_UCONTEXT_H)
+#include 
+#elif defined(HAVE_UCONTEXT_H)
+#include   // for ucontext_t
+#elif defined(HAVE_CYGWIN_SIGNAL_H)
+// cygwin/signal.h has a buglet where it uses pthread_attr_t without
+// #including  itself.  So we have to do it.
+# ifdef HAVE_PTHREAD
+# include 
+# endif
+#include 
+typedef ucontext ucontext_t;
+#endif
+#ifdef HAVE_STDINT_H
+#include    // for uintptr_t
+#endif
+#ifdef HAVE_UNISTD_H
+#include 
+#endif
+#ifdef HAVE_MMAP
+#include  // for msync
+#include "base/vdso_support.h"
+#endif
+
+#include "gperftools/stacktrace.h"
+
+#if defined(__linux__) && defined(__i386__) && defined(__ELF__) && defined(HAVE_MMAP)
+// Count "push %reg" instructions in VDSO __kernel_vsyscall(),
+// preceding "syscall" or "sysenter".
+// If __kernel_vsyscall uses frame pointer, answer 0.
+//
+// kMaxBytes tells how many instruction bytes of __kernel_vsyscall
+// to analyze before giving up. Up to kMaxBytes+1 bytes of
+// instructions could be accessed.
+//
+// Here are known __kernel_vsyscall instruction sequences:
+//
+// SYSENTER (linux-2.6.26/arch/x86/vdso/vdso32/sysenter.S).
+// Used on Intel.
+//  0xffffe400 <__kernel_vsyscall+0>:       push   %ecx
+//  0xffffe401 <__kernel_vsyscall+1>:       push   %edx
+//  0xffffe402 <__kernel_vsyscall+2>:       push   %ebp
+//  0xffffe403 <__kernel_vsyscall+3>:       mov    %esp,%ebp
+//  0xffffe405 <__kernel_vsyscall+5>:       sysenter
+//
+// SYSCALL (see linux-2.6.26/arch/x86/vdso/vdso32/syscall.S).
+// Used on AMD.
+//  0xffffe400 <__kernel_vsyscall+0>:       push   %ebp
+//  0xffffe401 <__kernel_vsyscall+1>:       mov    %ecx,%ebp
+//  0xffffe403 <__kernel_vsyscall+3>:       syscall
+//
+// i386 (see linux-2.6.26/arch/x86/vdso/vdso32/int80.S)
+//  0xffffe400 <__kernel_vsyscall+0>:       int $0x80
+//  0xffffe401 <__kernel_vsyscall+1>:       ret
+//
+static const int kMaxBytes = 10;
+
+// We use assert()s instead of DCHECK()s -- this is too low level
+// for DCHECK().
+
+static int CountPushInstructions(const unsigned char *const addr) {
+  int result = 0;
+  for (int i = 0; i < kMaxBytes; ++i) {
+    if (addr[i] == 0x89) {
+      // "mov reg,reg"
+      if (addr[i + 1] == 0xE5) {
+        // Found "mov %esp,%ebp".
+        return 0;
+      }
+      ++i;  // Skip register encoding byte.
+    } else if (addr[i] == 0x0F &&
+               (addr[i + 1] == 0x34 || addr[i + 1] == 0x05)) {
+      // Found "sysenter" or "syscall".
+      return result;
+    } else if ((addr[i] & 0xF0) == 0x50) {
+      // Found "push %reg".
+      ++result;
+    } else if (addr[i] == 0xCD && addr[i + 1] == 0x80) {
+      // Found "int $0x80"
+      assert(result == 0);
+      return 0;
+    } else {
+      // Unexpected instruction.
+      assert(0 == "unexpected instruction in __kernel_vsyscall");
+      return 0;
+    }
+  }
+  // Unexpected: didn't find SYSENTER or SYSCALL in
+  // [__kernel_vsyscall, __kernel_vsyscall + kMaxBytes) interval.
+  assert(0 == "did not find SYSENTER or SYSCALL in __kernel_vsyscall");
+  return 0;
+}
+#endif
+
+// Given a pointer to a stack frame, locate and return the calling
+// stackframe, or return NULL if no stackframe can be found. Perform sanity
+// checks (the strictness of which is controlled by the boolean parameter
+// "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
+template
+static void **NextStackFrame(void **old_sp, const void *uc) {
+  void **new_sp = (void **) *old_sp;
+
+#if defined(__linux__) && defined(__i386__) && defined(HAVE_VDSO_SUPPORT)
+  if (WITH_CONTEXT && uc != NULL) {
+    // How many "push %reg" instructions are there at __kernel_vsyscall?
+    // This is constant for a given kernel and processor, so compute
+    // it only once.
+    static int num_push_instructions = -1;  // Sentinel: not computed yet.
+    // Initialize with sentinel value: __kernel_rt_sigreturn can not possibly
+    // be there.
+    static const unsigned char *kernel_rt_sigreturn_address = NULL;
+    static const unsigned char *kernel_vsyscall_address = NULL;
+    if (num_push_instructions == -1) {
+      base::VDSOSupport vdso;
+      if (vdso.IsPresent()) {
+        base::VDSOSupport::SymbolInfo rt_sigreturn_symbol_info;
+        base::VDSOSupport::SymbolInfo vsyscall_symbol_info;
+        if (!vdso.LookupSymbol("__kernel_rt_sigreturn", "LINUX_2.5",
+                               STT_FUNC, &rt_sigreturn_symbol_info) ||
+            !vdso.LookupSymbol("__kernel_vsyscall", "LINUX_2.5",
+                               STT_FUNC, &vsyscall_symbol_info) ||
+            rt_sigreturn_symbol_info.address == NULL ||
+            vsyscall_symbol_info.address == NULL) {
+          // Unexpected: 32-bit VDSO is present, yet one of the expected
+          // symbols is missing or NULL.
+          assert(0 == "VDSO is present, but doesn't have expected symbols");
+          num_push_instructions = 0;
+        } else {
+          kernel_rt_sigreturn_address =
+              reinterpret_cast(
+                  rt_sigreturn_symbol_info.address);
+          kernel_vsyscall_address =
+              reinterpret_cast(
+                  vsyscall_symbol_info.address);
+          num_push_instructions =
+              CountPushInstructions(kernel_vsyscall_address);
+        }
+      } else {
+        num_push_instructions = 0;
+      }
+    }
+    if (num_push_instructions != 0 && kernel_rt_sigreturn_address != NULL &&
+        old_sp[1] == kernel_rt_sigreturn_address) {
+      const ucontext_t *ucv = static_cast(uc);
+      // This kernel does not use frame pointer in its VDSO code,
+      // and so %ebp is not suitable for unwinding.
+      void **const reg_ebp =
+          reinterpret_cast(ucv->uc_mcontext.gregs[REG_EBP]);
+      const unsigned char *const reg_eip =
+          reinterpret_cast(ucv->uc_mcontext.gregs[REG_EIP]);
+      if (new_sp == reg_ebp &&
+          kernel_vsyscall_address <= reg_eip &&
+          reg_eip - kernel_vsyscall_address < kMaxBytes) {
+        // We "stepped up" to __kernel_vsyscall, but %ebp is not usable.
+        // Restore from 'ucv' instead.
+        void **const reg_esp =
+            reinterpret_cast(ucv->uc_mcontext.gregs[REG_ESP]);
+        // Check that alleged %esp is not NULL and is reasonably aligned.
+        if (reg_esp &&
+            ((uintptr_t)reg_esp & (sizeof(reg_esp) - 1)) == 0) {
+          // Check that alleged %esp is actually readable. This is to prevent
+          // "double fault" in case we hit the first fault due to e.g. stack
+          // corruption.
+          //
+          // page_size is linker-initalized to avoid async-unsafe locking
+          // that GCC would otherwise insert (__cxa_guard_acquire etc).
+          static int page_size;
+          if (page_size == 0) {
+            // First time through.
+            page_size = getpagesize();
+          }
+          void *const reg_esp_aligned =
+              reinterpret_cast(
+                  (uintptr_t)(reg_esp + num_push_instructions - 1) &
+                  ~(page_size - 1));
+          if (msync(reg_esp_aligned, page_size, MS_ASYNC) == 0) {
+            // Alleged %esp is readable, use it for further unwinding.
+            new_sp = reinterpret_cast(
+                reg_esp[num_push_instructions - 1]);
+          }
+        }
+      }
+    }
+  }
+#endif
+
+  // Check that the transition from frame pointer old_sp to frame
+  // pointer new_sp isn't clearly bogus
+  if (STRICT_UNWINDING) {
+    // With the stack growing downwards, older stack frame must be
+    // at a greater address that the current one.
+    if (new_sp <= old_sp) return NULL;
+    // Assume stack frames larger than 100,000 bytes are bogus.
+    if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL;
+  } else {
+    // In the non-strict mode, allow discontiguous stack frames.
+    // (alternate-signal-stacks for example).
+    if (new_sp == old_sp) return NULL;
+    if (new_sp > old_sp) {
+      // And allow frames upto about 1MB.
+      const uintptr_t delta = (uintptr_t)new_sp - (uintptr_t)old_sp;
+      const uintptr_t acceptable_delta = 1000000;
+      if (delta > acceptable_delta) {
+        return NULL;
+      }
+    }
+  }
+  if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL;
+#ifdef __i386__
+  // On 64-bit machines, the stack pointer can be very close to
+  // 0xffffffff, so we explicitly check for a pointer into the
+  // last two pages in the address space
+  if ((uintptr_t)new_sp >= 0xffffe000) return NULL;
+#endif
+#ifdef HAVE_MMAP
+  if (!STRICT_UNWINDING) {
+    // Lax sanity checks cause a crash on AMD-based machines with
+    // VDSO-enabled kernels.
+    // Make an extra sanity check to insure new_sp is readable.
+    // Note: NextStackFrame() is only called while the program
+    //       is already on its last leg, so it's ok to be slow here.
+    static int page_size = getpagesize();
+    void *new_sp_aligned = (void *)((uintptr_t)new_sp & ~(page_size - 1));
+    if (msync(new_sp_aligned, page_size, MS_ASYNC) == -1)
+      return NULL;
+  }
+#endif
+  return new_sp;
+}
+
+#endif  // BASE_STACKTRACE_X86_INL_H_
+
+// Note: this part of the file is included several times.
+// Do not put globals below.
+
+// The following 4 functions are generated from the code below:
+//   GetStack{Trace,Frames}()
+//   GetStack{Trace,Frames}WithContext()
+//
+// These functions take the following args:
+//   void** result: the stack-trace, as an array
+//   int* sizes: the size of each stack frame, as an array
+//               (GetStackFrames* only)
+//   int max_depth: the size of the result (and sizes) array(s)
+//   int skip_count: how many stack pointers to skip before storing in result
+//   void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only)
+
+static int GET_STACK_TRACE_OR_FRAMES {
+  void **sp;
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2) || __llvm__
+  // __builtin_frame_address(0) can return the wrong address on gcc-4.1.0-k8.
+  // It's always correct on llvm, and the techniques below aren't (in
+  // particular, llvm-gcc will make a copy of pcs, so it's not in sp[2]),
+  // so we also prefer __builtin_frame_address when running under llvm.
+  sp = reinterpret_cast(__builtin_frame_address(0));
+#elif defined(__i386__)
+  // Stack frame format:
+  //    sp[0]   pointer to previous frame
+  //    sp[1]   caller address
+  //    sp[2]   first argument
+  //    ...
+  // NOTE: This will break under llvm, since result is a copy and not in sp[2]
+  sp = (void **)&result - 2;
+#elif defined(__x86_64__)
+  unsigned long rbp;
+  // Move the value of the register %rbp into the local variable rbp.
+  // We need 'volatile' to prevent this instruction from getting moved
+  // around during optimization to before function prologue is done.
+  // An alternative way to achieve this
+  // would be (before this __asm__ instruction) to call Noop() defined as
+  //   static void Noop() __attribute__ ((noinline));  // prevent inlining
+  //   static void Noop() { asm(""); }  // prevent optimizing-away
+  __asm__ volatile ("mov %%rbp, %0" : "=r" (rbp));
+  // Arguments are passed in registers on x86-64, so we can't just
+  // offset from &result
+  sp = (void **) rbp;
+#else
+# error Using stacktrace_x86-inl.h on a non x86 architecture!
+#endif
+
+  skip_count++; // skip parent's frame due to indirection in stacktrace.cc
+
+  int n = 0;
+  while (sp && n < max_depth) {
+    if (*(sp+1) == reinterpret_cast(0)) {
+      // In 64-bit code, we often see a frame that
+      // points to itself and has a return address of 0.
+      break;
+    }
+#if !IS_WITH_CONTEXT
+    const void *const ucp = NULL;
+#endif
+    void **next_sp = NextStackFrame(sp, ucp);
+    if (skip_count > 0) {
+      skip_count--;
+    } else {
+      result[n] = *(sp+1);
+#if IS_STACK_FRAMES
+      if (next_sp > sp) {
+        sizes[n] = (uintptr_t)next_sp - (uintptr_t)sp;
+      } else {
+        // A frame-size of 0 is used to indicate unknown frame size.
+        sizes[n] = 0;
+      }
+#endif
+      n++;
+    }
+    sp = next_sp;
+  }
+  return n;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/static_vars.cc b/trunk/3rdparty/gperftools-2-fit/src/static_vars.cc
new file mode 100644
index 000000000..fef6ed1af
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/static_vars.cc
@@ -0,0 +1,152 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Ken Ashcraft 
+
+#include 
+#include "static_vars.h"
+#include                      // for NULL
+#include                           // for operator new
+#ifdef HAVE_PTHREAD
+#include                     // for pthread_atfork
+#endif
+#include "internal_logging.h"  // for CHECK_CONDITION
+#include "common.h"
+#include "sampler.h"           // for Sampler
+#include "getenv_safe.h"       // TCMallocGetenvSafe
+#include "base/googleinit.h"
+#include "maybe_threads.h"
+
+namespace tcmalloc {
+
+#if defined(HAVE_FORK) && defined(HAVE_PTHREAD)
+// These following two functions are registered via pthread_atfork to make
+// sure the central_cache locks remain in a consisten state in the forked
+// version of the thread.
+
+void CentralCacheLockAll() NO_THREAD_SAFETY_ANALYSIS
+{
+  Static::pageheap_lock()->Lock();
+  for (int i = 0; i < Static::num_size_classes(); ++i)
+    Static::central_cache()[i].Lock();
+}
+
+void CentralCacheUnlockAll() NO_THREAD_SAFETY_ANALYSIS
+{
+  for (int i = 0; i < Static::num_size_classes(); ++i)
+    Static::central_cache()[i].Unlock();
+  Static::pageheap_lock()->Unlock();
+}
+#endif
+
+bool Static::inited_;
+SpinLock Static::pageheap_lock_(SpinLock::LINKER_INITIALIZED);
+SizeMap Static::sizemap_;
+CentralFreeListPadded Static::central_cache_[kClassSizesMax];
+PageHeapAllocator Static::span_allocator_;
+PageHeapAllocator Static::stacktrace_allocator_;
+Span Static::sampled_objects_;
+StackTrace* Static::growth_stacks_ = NULL;
+Static::PageHeapStorage Static::pageheap_;
+
+void Static::InitStaticVars() {
+  sizemap_.Init();
+  span_allocator_.Init();
+  span_allocator_.New(); // Reduce cache conflicts
+  span_allocator_.New(); // Reduce cache conflicts
+  stacktrace_allocator_.Init();
+  // Do a bit of sanitizing: make sure central_cache is aligned properly
+  CHECK_CONDITION((sizeof(central_cache_[0]) % 64) == 0);
+  for (int i = 0; i < num_size_classes(); ++i) {
+    central_cache_[i].Init(i);
+  }
+
+  new (&pageheap_.memory) PageHeap;
+
+#if defined(ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT)
+  const bool kDefaultAggressiveDecommit = true;
+#else
+  const bool kDefaultAggressiveDecommit = false;
+#endif
+
+
+  bool aggressive_decommit =
+    tcmalloc::commandlineflags::StringToBool(
+      TCMallocGetenvSafe("TCMALLOC_AGGRESSIVE_DECOMMIT"),
+                         kDefaultAggressiveDecommit);
+
+  pageheap()->SetAggressiveDecommit(aggressive_decommit);
+
+  inited_ = true;
+
+  DLL_Init(&sampled_objects_);
+}
+
+void Static::InitLateMaybeRecursive() {
+#if defined(HAVE_FORK) && defined(HAVE_PTHREAD) \
+  && !defined(__APPLE__) && !defined(TCMALLOC_NO_ATFORK)
+  // OSX has it's own way of handling atfork in malloc (see
+  // libc_override_osx.h).
+  //
+  // For other OSes we do pthread_atfork even if standard seemingly
+  // discourages pthread_atfork, asking apps to do only
+  // async-signal-safe calls between fork and exec.
+  //
+  // We're deliberately attempting to register atfork handlers as part
+  // of malloc initialization. So very early. This ensures that our
+  // handler is called last and that means fork will try to grab
+  // tcmalloc locks last avoiding possible issues with many other
+  // locks that are held around calls to malloc. I.e. if we don't do
+  // that, fork() grabbing malloc lock before such other lock would be
+  // prone to deadlock, if some other thread holds other lock and
+  // calls malloc.
+  //
+  // We still leave some way of disabling it via
+  // -DTCMALLOC_NO_ATFORK. It looks like on glibc even with fully
+  // static binaries malloc is really initialized very early. But I
+  // can see how combination of static linking and other libc-s could
+  // be less fortunate and allow some early app constructors to run
+  // before malloc is ever called.
+
+  perftools_pthread_atfork(
+    CentralCacheLockAll,    // parent calls before fork
+    CentralCacheUnlockAll,  // parent calls after fork
+    CentralCacheUnlockAll); // child calls after fork
+#endif
+
+#ifndef NDEBUG
+  // pthread_atfork above may malloc sometimes. Lets ensure we test
+  // that malloc works from here.
+  free(malloc(1));
+#endif
+}
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/static_vars.h b/trunk/3rdparty/gperftools-2-fit/src/static_vars.h
new file mode 100644
index 000000000..bef018088
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/static_vars.h
@@ -0,0 +1,126 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Ken Ashcraft 
+//
+// Static variables shared by multiple classes.
+
+#ifndef TCMALLOC_STATIC_VARS_H_
+#define TCMALLOC_STATIC_VARS_H_
+
+#include 
+#include "base/basictypes.h"
+#include "base/spinlock.h"
+#include "central_freelist.h"
+#include "common.h"
+#include "page_heap.h"
+#include "page_heap_allocator.h"
+#include "span.h"
+#include "stack_trace_table.h"
+
+namespace tcmalloc {
+
+class Static {
+ public:
+  // Linker initialized, so this lock can be accessed at any time.
+  static SpinLock* pageheap_lock() { return &pageheap_lock_; }
+
+  // Must be called before calling any of the accessors below.
+  static void InitStaticVars();
+  static void InitLateMaybeRecursive();
+
+  // Central cache -- an array of free-lists, one per size-class.
+  // We have a separate lock per free-list to reduce contention.
+  static CentralFreeListPadded* central_cache() { return central_cache_; }
+
+  static SizeMap* sizemap() { return &sizemap_; }
+
+  static unsigned num_size_classes() { return sizemap_.num_size_classes; }
+
+  //////////////////////////////////////////////////////////////////////
+  // In addition to the explicit initialization comment, the variables below
+  // must be protected by pageheap_lock.
+
+  // Page-level allocator.
+  static PageHeap* pageheap() { return reinterpret_cast(&pageheap_.memory); }
+
+  static PageHeapAllocator* span_allocator() { return &span_allocator_; }
+
+  static PageHeapAllocator* stacktrace_allocator() {
+    return &stacktrace_allocator_;
+  }
+
+  static StackTrace* growth_stacks() { return growth_stacks_; }
+  static void set_growth_stacks(StackTrace* s) { growth_stacks_ = s; }
+
+  // State kept for sampled allocations (/pprof/heap support)
+  static Span* sampled_objects() { return &sampled_objects_; }
+
+  // Check if InitStaticVars() has been run.
+  static bool IsInited() { return inited_; }
+
+ private:
+  // some unit tests depend on this and link to static vars
+  // imperfectly. Thus we keep those unhidden for now. Thankfully
+  // they're not performance-critical.
+  /* ATTRIBUTE_HIDDEN */ static bool inited_;
+  /* ATTRIBUTE_HIDDEN */ static SpinLock pageheap_lock_;
+
+  // These static variables require explicit initialization.  We cannot
+  // count on their constructors to do any initialization because other
+  // static variables may try to allocate memory before these variables
+  // can run their constructors.
+
+  ATTRIBUTE_HIDDEN static SizeMap sizemap_;
+  ATTRIBUTE_HIDDEN static CentralFreeListPadded central_cache_[kClassSizesMax];
+  ATTRIBUTE_HIDDEN static PageHeapAllocator span_allocator_;
+  ATTRIBUTE_HIDDEN static PageHeapAllocator stacktrace_allocator_;
+  ATTRIBUTE_HIDDEN static Span sampled_objects_;
+
+  // Linked list of stack traces recorded every time we allocated memory
+  // from the system.  Useful for finding allocation sites that cause
+  // increase in the footprint of the system.  The linked list pointer
+  // is stored in trace->stack[kMaxStackDepth-1].
+  ATTRIBUTE_HIDDEN static StackTrace* growth_stacks_;
+
+  // PageHeap uses a constructor for initialization.  Like the members above,
+  // we can't depend on initialization order, so pageheap is new'd
+  // into this buffer.
+  union PageHeapStorage {
+    char memory[sizeof(PageHeap)];
+    uintptr_t extra;  // To force alignment
+  };
+  ATTRIBUTE_HIDDEN static PageHeapStorage pageheap_;
+};
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_STATIC_VARS_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/symbolize.cc b/trunk/3rdparty/gperftools-2-fit/src/symbolize.cc
new file mode 100644
index 000000000..8c94c18ff
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/symbolize.cc
@@ -0,0 +1,298 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// This forks out to pprof to do the actual symbolizing.  We might
+// be better off writing our own in C++.
+
+#include "config.h"
+#include "symbolize.h"
+#include 
+#ifdef HAVE_UNISTD_H
+#include    // for write()
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include    // for socketpair() -- needed by Symbolize
+#endif
+#ifdef HAVE_SYS_WAIT_H
+#include    // for wait() -- needed by Symbolize
+#endif
+#ifdef HAVE_POLL_H
+#include 
+#endif
+#ifdef __MACH__
+#include    // for GetProgramInvocationName()
+#include         // for PATH_MAX
+#endif
+#if defined(__CYGWIN__) || defined(__CYGWIN32__)
+#include             // for get_osfhandle()
+#endif
+#include 
+#include "base/commandlineflags.h"
+#include "base/logging.h"
+#include "base/sysinfo.h"
+#if defined(__FreeBSD__)
+#include 
+#endif
+
+using std::string;
+using tcmalloc::DumpProcSelfMaps;   // from sysinfo.h
+
+// pprof may be used after destructors are
+// called (since that's when leak-checking is done), so we make
+// a more-permanent copy that won't ever get destroyed.
+static char* get_pprof_path() {
+  static char* result = ([] () {
+      string pprof_string = EnvToString("PPROF_PATH", "pprof-symbolize");
+      return strdup(pprof_string.c_str());
+    })();
+
+  return result;
+}
+
+// Returns NULL if we're on an OS where we can't get the invocation name.
+// Using a static var is ok because we're not called from a thread.
+static const char* GetProgramInvocationName() {
+#if defined(HAVE_PROGRAM_INVOCATION_NAME)
+#ifdef __UCLIBC__
+  extern const char* program_invocation_name; // uclibc provides this
+#else
+  extern char* program_invocation_name;  // gcc provides this
+#endif
+  return program_invocation_name;
+#elif defined(__MACH__)
+  // We don't want to allocate memory for this since we may be
+  // calculating it when memory is corrupted.
+  static char program_invocation_name[PATH_MAX];
+  if (program_invocation_name[0] == '\0') {  // first time calculating
+    uint32_t length = sizeof(program_invocation_name);
+    if (_NSGetExecutablePath(program_invocation_name, &length))
+      return NULL;
+  }
+  return program_invocation_name;
+#elif defined(__FreeBSD__)
+  static char program_invocation_name[PATH_MAX];
+  size_t len = sizeof(program_invocation_name);
+  static const int name[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
+  if (!sysctl(name, 4, program_invocation_name, &len, NULL, 0))
+    return program_invocation_name;
+  return NULL;
+#else
+  return NULL;   // figure out a way to get argv[0]
+#endif
+}
+
+// Prints an error message when you can't run Symbolize().
+static void PrintError(const char* reason) {
+  RAW_LOG(ERROR,
+          "*** WARNING: Cannot convert addresses to symbols in output below.\n"
+          "*** Reason: %s\n"
+          "*** If you cannot fix this, try running pprof directly.\n",
+          reason);
+}
+
+void SymbolTable::Add(const void* addr) {
+  symbolization_table_[addr] = "";
+}
+
+const char* SymbolTable::GetSymbol(const void* addr) {
+  return symbolization_table_[addr];
+}
+
+// Updates symbolization_table with the pointers to symbol names corresponding
+// to its keys. The symbol names are stored in out, which is allocated and
+// freed by the caller of this routine.
+// Note that the forking/etc is not thread-safe or re-entrant.  That's
+// ok for the purpose we need -- reporting leaks detected by heap-checker
+// -- but be careful if you decide to use this routine for other purposes.
+// Returns number of symbols read on error.  If can't symbolize, returns 0
+// and emits an error message about why.
+int SymbolTable::Symbolize() {
+#if !defined(HAVE_UNISTD_H)  || !defined(HAVE_SYS_SOCKET_H) || !defined(HAVE_SYS_WAIT_H)
+  PrintError("Perftools does not know how to call a sub-process on this O/S");
+  return 0;
+#else
+  const char* argv0 = GetProgramInvocationName();
+  if (argv0 == NULL) {  // can't call symbolize if we can't figure out our name
+    PrintError("Cannot figure out the name of this executable (argv0)");
+    return 0;
+  }
+  if (access(get_pprof_path(), R_OK) != 0) {
+    PrintError("Cannot find 'pprof' (is PPROF_PATH set correctly?)");
+    return 0;
+  }
+
+  // All this work is to do two-way communication.  ugh.
+  int *child_in = NULL;   // file descriptors
+  int *child_out = NULL;  // for now, we don't worry about child_err
+  int child_fds[5][2];    // socketpair may be called up to five times below
+
+  // The client program may close its stdin and/or stdout and/or stderr
+  // thus allowing socketpair to reuse file descriptors 0, 1 or 2.
+  // In this case the communication between the forked processes may be broken
+  // if either the parent or the child tries to close or duplicate these
+  // descriptors. The loop below produces two pairs of file descriptors, each
+  // greater than 2 (stderr).
+  for (int i = 0; i < 5; i++) {
+    if (socketpair(AF_UNIX, SOCK_STREAM, 0, child_fds[i]) == -1) {
+      for (int j = 0; j < i; j++) {
+        close(child_fds[j][0]);
+        close(child_fds[j][1]);
+        PrintError("Cannot create a socket pair");
+      }
+      return 0;
+    } else {
+      if ((child_fds[i][0] > 2) && (child_fds[i][1] > 2)) {
+        if (child_in == NULL) {
+          child_in = child_fds[i];
+        } else {
+          child_out = child_fds[i];
+          for (int j = 0; j < i; j++) {
+            if (child_fds[j] == child_in) continue;
+            close(child_fds[j][0]);
+            close(child_fds[j][1]);
+          }
+          break;
+        }
+      }
+    }
+  }
+
+  switch (fork()) {
+    case -1: {  // error
+      close(child_in[0]);
+      close(child_in[1]);
+      close(child_out[0]);
+      close(child_out[1]);
+      PrintError("Unknown error calling fork()");
+      return 0;
+    }
+    case 0: {  // child
+      close(child_in[1]);   // child uses the 0's, parent uses the 1's
+      close(child_out[1]);  // child uses the 0's, parent uses the 1's
+      close(0);
+      close(1);
+      if (dup2(child_in[0], 0) == -1) _exit(1);
+      if (dup2(child_out[0], 1) == -1) _exit(2);
+      // Unset vars that might cause trouble when we fork
+      unsetenv("CPUPROFILE");
+      unsetenv("HEAPPROFILE");
+      unsetenv("HEAPCHECK");
+      unsetenv("PERFTOOLS_VERBOSE");
+      execlp(get_pprof_path(), get_pprof_path(),
+             "--symbols", argv0, NULL);
+      _exit(3);  // if execvp fails, it's bad news for us
+    }
+    default: {  // parent
+      close(child_in[0]);   // child uses the 0's, parent uses the 1's
+      close(child_out[0]);  // child uses the 0's, parent uses the 1's
+#ifdef HAVE_POLL_H
+      // Waiting for 1ms seems to give the OS time to notice any errors.
+      poll(0, 0, 1);
+      // For maximum safety, we check to make sure the execlp
+      // succeeded before trying to write.  (Otherwise we'll get a
+      // SIGPIPE.)  For systems without poll.h, we'll just skip this
+      // check, and trust that the user set PPROF_PATH correctly!
+      struct pollfd pfd = { child_in[1], POLLOUT, 0 };
+      if (!poll(&pfd, 1, 0) || !(pfd.revents & POLLOUT) ||
+          (pfd.revents & (POLLHUP|POLLERR))) {
+        PrintError("Cannot run 'pprof' (is PPROF_PATH set correctly?)");
+        return 0;
+      }
+#endif
+#if defined(__CYGWIN__) || defined(__CYGWIN32__)
+      // On cygwin, DumpProcSelfMaps() takes a HANDLE, not an fd.  Convert.
+      const HANDLE symbols_handle = (HANDLE) get_osfhandle(child_in[1]);
+      DumpProcSelfMaps(symbols_handle);
+#else
+      DumpProcSelfMaps(child_in[1]);  // what pprof expects on stdin
+#endif
+
+      // Allocate 24 bytes = ("0x" + 8 bytes + "\n" + overhead) for each
+      // address to feed to pprof.
+      const int kOutBufSize = 24 * symbolization_table_.size();
+      char *pprof_buffer = new char[kOutBufSize];
+      int written = 0;
+      for (SymbolMap::const_iterator iter = symbolization_table_.begin();
+           iter != symbolization_table_.end(); ++iter) {
+        written += snprintf(pprof_buffer + written, kOutBufSize - written,
+                 // pprof expects format to be 0xXXXXXX
+                 "0x%" PRIxPTR "\n", reinterpret_cast(iter->first));
+      }
+      write(child_in[1], pprof_buffer, strlen(pprof_buffer));
+      close(child_in[1]);             // that's all we need to write
+      delete[] pprof_buffer;
+
+      const int kSymbolBufferSize = kSymbolSize * symbolization_table_.size();
+      int total_bytes_read = 0;
+      delete[] symbol_buffer_;
+      symbol_buffer_ = new char[kSymbolBufferSize];
+      memset(symbol_buffer_, '\0', kSymbolBufferSize);
+      while (1) {
+        int bytes_read = read(child_out[1], symbol_buffer_ + total_bytes_read,
+                              kSymbolBufferSize - total_bytes_read);
+        if (bytes_read < 0) {
+          close(child_out[1]);
+          PrintError("Cannot read data from pprof");
+          return 0;
+        } else if (bytes_read == 0) {
+          close(child_out[1]);
+          wait(NULL);
+          break;
+        } else {
+          total_bytes_read += bytes_read;
+        }
+      }
+      // We have successfully read the output of pprof into out.  Make sure
+      // the last symbol is full (we can tell because it ends with a \n).
+      if (total_bytes_read == 0 || symbol_buffer_[total_bytes_read - 1] != '\n')
+        return 0;
+      // make the symbolization_table_ values point to the output vector
+      SymbolMap::iterator fill = symbolization_table_.begin();
+      int num_symbols = 0;
+      const char *current_name = symbol_buffer_;
+      for (int i = 0; i < total_bytes_read; i++) {
+        if (symbol_buffer_[i] == '\n') {
+          fill->second = current_name;
+          symbol_buffer_[i] = '\0';
+          current_name = symbol_buffer_ + i + 1;
+          fill++;
+          num_symbols++;
+        }
+      }
+      return num_symbols;
+    }
+  }
+  PrintError("Unkown error (should never occur!)");
+  return 0;  // shouldn't be reachable
+#endif
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/symbolize.h b/trunk/3rdparty/gperftools-2-fit/src/symbolize.h
new file mode 100644
index 000000000..aa0aa33a7
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/symbolize.h
@@ -0,0 +1,84 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+
+#ifndef TCMALLOC_SYMBOLIZE_H_
+#define TCMALLOC_SYMBOLIZE_H_
+
+#include "config.h"
+#ifdef HAVE_STDINT_H
+#include   // for uintptr_t
+#endif
+#include   // for NULL
+#include 
+
+using std::map;
+
+// SymbolTable encapsulates the address operations necessary for stack trace
+// symbolization. A common use-case is to Add() the addresses from one or
+// several stack traces to a table, call Symbolize() once and use GetSymbol()
+// to get the symbol names for pretty-printing the stack traces.
+class SymbolTable {
+ public:
+  SymbolTable()
+    : symbol_buffer_(NULL) {}
+  ~SymbolTable() {
+    delete[] symbol_buffer_;
+  }
+
+  // Adds an address to the table. This may overwrite a currently known symbol
+  // name, so Add() should not generally be called after Symbolize().
+  void Add(const void* addr);
+
+  // Returns the symbol name for addr, if the given address was added before
+  // the last successful call to Symbolize(). Otherwise may return an empty
+  // c-string.
+  const char* GetSymbol(const void* addr);
+
+  // Obtains the symbol names for the addresses stored in the table and returns
+  // the number of addresses actually symbolized.
+  int Symbolize();
+
+ private:
+  typedef map SymbolMap;
+
+  // An average size of memory allocated for a stack trace symbol.
+  static const int kSymbolSize = 1024;
+
+  // Map from addresses to symbol names.
+  SymbolMap symbolization_table_;
+
+  // Pointer to the buffer that stores the symbol names.
+  char *symbol_buffer_;
+};
+
+#endif  // TCMALLOC_SYMBOLIZE_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/system-alloc.cc b/trunk/3rdparty/gperftools-2-fit/src/system-alloc.cc
new file mode 100644
index 000000000..e84a5f1bf
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/system-alloc.cc
@@ -0,0 +1,555 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+
+#include 
+#include                       // for EAGAIN, errno
+#include                       // for open, O_RDWR
+#include                      // for size_t, NULL, ptrdiff_t
+#if defined HAVE_STDINT_H
+#include                      // for uintptr_t, intptr_t
+#elif defined HAVE_INTTYPES_H
+#include 
+#else
+#include 
+#endif
+#ifdef HAVE_MMAP
+#include                    // for munmap, mmap, MADV_DONTNEED, etc
+#endif
+#ifdef HAVE_UNISTD_H
+#include                      // for sbrk, getpagesize, off_t
+#endif
+#include                           // for operator new
+#include 
+#include "base/basictypes.h"
+#include "base/commandlineflags.h"
+#include "base/spinlock.h"              // for SpinLockHolder, SpinLock, etc
+#include "common.h"
+#include "internal_logging.h"
+
+// On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old
+// form of the name instead.
+#ifndef MAP_ANONYMOUS
+# define MAP_ANONYMOUS MAP_ANON
+#endif
+
+// Linux added support for MADV_FREE in 4.5 but we aren't ready to use it
+// yet. Among other things, using compile-time detection leads to poor
+// results when compiling on a system with MADV_FREE and running on a
+// system without it. See https://github.com/gperftools/gperftools/issues/780.
+#if defined(__linux__) && defined(MADV_FREE) && !defined(TCMALLOC_USE_MADV_FREE)
+# undef MADV_FREE
+#endif
+
+// MADV_FREE is specifically designed for use by malloc(), but only
+// FreeBSD supports it; in linux we fall back to the somewhat inferior
+// MADV_DONTNEED.
+#if !defined(MADV_FREE) && defined(MADV_DONTNEED)
+# define MADV_FREE  MADV_DONTNEED
+#endif
+
+// Solaris has a bug where it doesn't declare madvise() for C++.
+//    http://www.opensolaris.org/jive/thread.jspa?threadID=21035&tstart=0
+#if defined(__sun) && defined(__SVR4)
+# include     // for caddr_t
+  extern "C" { extern int madvise(caddr_t, size_t, int); }
+#endif
+
+// Set kDebugMode mode so that we can have use C++ conditionals
+// instead of preprocessor conditionals.
+#ifdef NDEBUG
+static const bool kDebugMode = false;
+#else
+static const bool kDebugMode = true;
+#endif
+
+// TODO(sanjay): Move the code below into the tcmalloc namespace
+using tcmalloc::kLog;
+using tcmalloc::Log;
+
+// Check that no bit is set at position ADDRESS_BITS or higher.
+static bool CheckAddressBits(uintptr_t ptr) {
+  bool always_ok = (kAddressBits == 8 * sizeof(void*));
+  // this is a bit insane but otherwise we get compiler warning about
+  // shifting right by word size even if this code is dead :(
+  int shift_bits = always_ok ? 0 : kAddressBits;
+  return always_ok || ((ptr >> shift_bits) == 0);
+}
+
+COMPILE_ASSERT(kAddressBits <= 8 * sizeof(void*),
+               address_bits_larger_than_pointer_size);
+
+static SpinLock spinlock(SpinLock::LINKER_INITIALIZED);
+
+#if defined(HAVE_MMAP) || defined(MADV_FREE)
+// Page size is initialized on demand (only needed for mmap-based allocators)
+static size_t pagesize = 0;
+#endif
+
+// The current system allocator
+SysAllocator* tcmalloc_sys_alloc = NULL;
+
+// Number of bytes taken from system.
+size_t TCMalloc_SystemTaken = 0;
+
+// Configuration parameters.
+DEFINE_int32(malloc_devmem_start,
+             EnvToInt("TCMALLOC_DEVMEM_START", 0),
+             "Physical memory starting location in MB for /dev/mem allocation."
+             "  Setting this to 0 disables /dev/mem allocation");
+DEFINE_int32(malloc_devmem_limit,
+             EnvToInt("TCMALLOC_DEVMEM_LIMIT", 0),
+             "Physical memory limit location in MB for /dev/mem allocation."
+             "  Setting this to 0 means no limit.");
+DEFINE_bool(malloc_skip_sbrk,
+            EnvToBool("TCMALLOC_SKIP_SBRK", false),
+            "Whether sbrk can be used to obtain memory.");
+DEFINE_bool(malloc_skip_mmap,
+            EnvToBool("TCMALLOC_SKIP_MMAP", false),
+            "Whether mmap can be used to obtain memory.");
+DEFINE_bool(malloc_disable_memory_release,
+            EnvToBool("TCMALLOC_DISABLE_MEMORY_RELEASE", false),
+            "Whether MADV_FREE/MADV_DONTNEED should be used"
+            " to return unused memory to the system.");
+
+// static allocators
+class SbrkSysAllocator : public SysAllocator {
+public:
+  SbrkSysAllocator() : SysAllocator() {
+  }
+  void* Alloc(size_t size, size_t *actual_size, size_t alignment);
+};
+static union {
+  char buf[sizeof(SbrkSysAllocator)];
+  void *ptr;
+} sbrk_space;
+
+class MmapSysAllocator : public SysAllocator {
+public:
+  MmapSysAllocator() : SysAllocator() {
+  }
+  void* Alloc(size_t size, size_t *actual_size, size_t alignment);
+};
+static union {
+  char buf[sizeof(MmapSysAllocator)];
+  void *ptr;
+} mmap_space;
+
+class DevMemSysAllocator : public SysAllocator {
+public:
+  DevMemSysAllocator() : SysAllocator() {
+  }
+  void* Alloc(size_t size, size_t *actual_size, size_t alignment);
+};
+
+class DefaultSysAllocator : public SysAllocator {
+ public:
+  DefaultSysAllocator() : SysAllocator() {
+    for (int i = 0; i < kMaxAllocators; i++) {
+      failed_[i] = true;
+      allocs_[i] = NULL;
+      names_[i] = NULL;
+    }
+  }
+  void SetChildAllocator(SysAllocator* alloc, unsigned int index,
+                         const char* name) {
+    if (index < kMaxAllocators && alloc != NULL) {
+      allocs_[index] = alloc;
+      failed_[index] = false;
+      names_[index] = name;
+    }
+  }
+  void* Alloc(size_t size, size_t *actual_size, size_t alignment);
+
+ private:
+  static const int kMaxAllocators = 2;
+  bool failed_[kMaxAllocators];
+  SysAllocator* allocs_[kMaxAllocators];
+  const char* names_[kMaxAllocators];
+};
+static union {
+  char buf[sizeof(DefaultSysAllocator)];
+  void *ptr;
+} default_space;
+static const char sbrk_name[] = "SbrkSysAllocator";
+static const char mmap_name[] = "MmapSysAllocator";
+
+
+void* SbrkSysAllocator::Alloc(size_t size, size_t *actual_size,
+                              size_t alignment) {
+#if !defined(HAVE_SBRK) || defined(__UCLIBC__)
+  return NULL;
+#else
+  // Check if we should use sbrk allocation.
+  // FLAGS_malloc_skip_sbrk starts out as false (its uninitialized
+  // state) and eventually gets initialized to the specified value.  Note
+  // that this code runs for a while before the flags are initialized.
+  // That means that even if this flag is set to true, some (initial)
+  // memory will be allocated with sbrk before the flag takes effect.
+  if (FLAGS_malloc_skip_sbrk) {
+    return NULL;
+  }
+
+  // sbrk will release memory if passed a negative number, so we do
+  // a strict check here
+  if (static_cast(size + alignment) < 0) return NULL;
+
+  // This doesn't overflow because TCMalloc_SystemAlloc has already
+  // tested for overflow at the alignment boundary.
+  size = ((size + alignment - 1) / alignment) * alignment;
+
+  // "actual_size" indicates that the bytes from the returned pointer
+  // p up to and including (p + actual_size - 1) have been allocated.
+  if (actual_size) {
+    *actual_size = size;
+  }
+
+  // Check that we we're not asking for so much more memory that we'd
+  // wrap around the end of the virtual address space.  (This seems
+  // like something sbrk() should check for us, and indeed opensolaris
+  // does, but glibc does not:
+  //    http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/sys/sbrk.c?a=true
+  //    http://sourceware.org/cgi-bin/cvsweb.cgi/~checkout~/libc/misc/sbrk.c?rev=1.1.2.1&content-type=text/plain&cvsroot=glibc
+  // Without this check, sbrk may succeed when it ought to fail.)
+  if (reinterpret_cast(sbrk(0)) + size < size) {
+    return NULL;
+  }
+
+  void* result = sbrk(size);
+  if (result == reinterpret_cast(-1)) {
+    return NULL;
+  }
+
+  // Is it aligned?
+  uintptr_t ptr = reinterpret_cast(result);
+  if ((ptr & (alignment-1)) == 0)  return result;
+
+  // Try to get more memory for alignment
+  size_t extra = alignment - (ptr & (alignment-1));
+  void* r2 = sbrk(extra);
+  if (reinterpret_cast(r2) == (ptr + size)) {
+    // Contiguous with previous result
+    return reinterpret_cast(ptr + extra);
+  }
+
+  // Give up and ask for "size + alignment - 1" bytes so
+  // that we can find an aligned region within it.
+  result = sbrk(size + alignment - 1);
+  if (result == reinterpret_cast(-1)) {
+    return NULL;
+  }
+  ptr = reinterpret_cast(result);
+  if ((ptr & (alignment-1)) != 0) {
+    ptr += alignment - (ptr & (alignment-1));
+  }
+  return reinterpret_cast(ptr);
+#endif  // HAVE_SBRK
+}
+
+void* MmapSysAllocator::Alloc(size_t size, size_t *actual_size,
+                              size_t alignment) {
+#ifndef HAVE_MMAP
+  return NULL;
+#else
+  // Check if we should use mmap allocation.
+  // FLAGS_malloc_skip_mmap starts out as false (its uninitialized
+  // state) and eventually gets initialized to the specified value.  Note
+  // that this code runs for a while before the flags are initialized.
+  // Chances are we never get here before the flags are initialized since
+  // sbrk is used until the heap is exhausted (before mmap is used).
+  if (FLAGS_malloc_skip_mmap) {
+    return NULL;
+  }
+
+  // Enforce page alignment
+  if (pagesize == 0) pagesize = getpagesize();
+  if (alignment < pagesize) alignment = pagesize;
+  size_t aligned_size = ((size + alignment - 1) / alignment) * alignment;
+  if (aligned_size < size) {
+    return NULL;
+  }
+  size = aligned_size;
+
+  // "actual_size" indicates that the bytes from the returned pointer
+  // p up to and including (p + actual_size - 1) have been allocated.
+  if (actual_size) {
+    *actual_size = size;
+  }
+
+  // Ask for extra memory if alignment > pagesize
+  size_t extra = 0;
+  if (alignment > pagesize) {
+    extra = alignment - pagesize;
+  }
+
+  // Note: size + extra does not overflow since:
+  //            size + alignment < (1<(MAP_FAILED)) {
+    return NULL;
+  }
+
+  // Adjust the return memory so it is aligned
+  uintptr_t ptr = reinterpret_cast(result);
+  size_t adjust = 0;
+  if ((ptr & (alignment - 1)) != 0) {
+    adjust = alignment - (ptr & (alignment - 1));
+  }
+
+  // Return the unused memory to the system
+  if (adjust > 0) {
+    munmap(reinterpret_cast(ptr), adjust);
+  }
+  if (adjust < extra) {
+    munmap(reinterpret_cast(ptr + adjust + size), extra - adjust);
+  }
+
+  ptr += adjust;
+  return reinterpret_cast(ptr);
+#endif  // HAVE_MMAP
+}
+
+void* DevMemSysAllocator::Alloc(size_t size, size_t *actual_size,
+                                size_t alignment) {
+#ifndef HAVE_MMAP
+  return NULL;
+#else
+  static bool initialized = false;
+  static off_t physmem_base;  // next physical memory address to allocate
+  static off_t physmem_limit; // maximum physical address allowed
+  static int physmem_fd;      // file descriptor for /dev/mem
+
+  // Check if we should use /dev/mem allocation.  Note that it may take
+  // a while to get this flag initialized, so meanwhile we fall back to
+  // the next allocator.  (It looks like 7MB gets allocated before
+  // this flag gets initialized -khr.)
+  if (FLAGS_malloc_devmem_start == 0) {
+    // NOTE: not a devmem_failure - we'd like TCMalloc_SystemAlloc to
+    // try us again next time.
+    return NULL;
+  }
+
+  if (!initialized) {
+    physmem_fd = open("/dev/mem", O_RDWR);
+    if (physmem_fd < 0) {
+      return NULL;
+    }
+    physmem_base = FLAGS_malloc_devmem_start*1024LL*1024LL;
+    physmem_limit = FLAGS_malloc_devmem_limit*1024LL*1024LL;
+    initialized = true;
+  }
+
+  // Enforce page alignment
+  if (pagesize == 0) pagesize = getpagesize();
+  if (alignment < pagesize) alignment = pagesize;
+  size_t aligned_size = ((size + alignment - 1) / alignment) * alignment;
+  if (aligned_size < size) {
+    return NULL;
+  }
+  size = aligned_size;
+
+  // "actual_size" indicates that the bytes from the returned pointer
+  // p up to and including (p + actual_size - 1) have been allocated.
+  if (actual_size) {
+    *actual_size = size;
+  }
+
+  // Ask for extra memory if alignment > pagesize
+  size_t extra = 0;
+  if (alignment > pagesize) {
+    extra = alignment - pagesize;
+  }
+
+  // check to see if we have any memory left
+  if (physmem_limit != 0 &&
+      ((size + extra) > (physmem_limit - physmem_base))) {
+    return NULL;
+  }
+
+  // Note: size + extra does not overflow since:
+  //            size + alignment < (1<(MAP_FAILED)) {
+    return NULL;
+  }
+  uintptr_t ptr = reinterpret_cast(result);
+
+  // Adjust the return memory so it is aligned
+  size_t adjust = 0;
+  if ((ptr & (alignment - 1)) != 0) {
+    adjust = alignment - (ptr & (alignment - 1));
+  }
+
+  // Return the unused virtual memory to the system
+  if (adjust > 0) {
+    munmap(reinterpret_cast(ptr), adjust);
+  }
+  if (adjust < extra) {
+    munmap(reinterpret_cast(ptr + adjust + size), extra - adjust);
+  }
+
+  ptr += adjust;
+  physmem_base += adjust + size;
+
+  return reinterpret_cast(ptr);
+#endif  // HAVE_MMAP
+}
+
+void* DefaultSysAllocator::Alloc(size_t size, size_t *actual_size,
+                                 size_t alignment) {
+  for (int i = 0; i < kMaxAllocators; i++) {
+    if (!failed_[i] && allocs_[i] != NULL) {
+      void* result = allocs_[i]->Alloc(size, actual_size, alignment);
+      if (result != NULL) {
+        return result;
+      }
+      failed_[i] = true;
+    }
+  }
+  // After both failed, reset "failed_" to false so that a single failed
+  // allocation won't make the allocator never work again.
+  for (int i = 0; i < kMaxAllocators; i++) {
+    failed_[i] = false;
+  }
+  return NULL;
+}
+
+ATTRIBUTE_WEAK ATTRIBUTE_NOINLINE
+SysAllocator *tc_get_sysalloc_override(SysAllocator *def)
+{
+  return def;
+}
+
+static bool system_alloc_inited = false;
+void InitSystemAllocators(void) {
+  MmapSysAllocator *mmap = new (mmap_space.buf) MmapSysAllocator();
+  SbrkSysAllocator *sbrk = new (sbrk_space.buf) SbrkSysAllocator();
+
+  // In 64-bit debug mode, place the mmap allocator first since it
+  // allocates pointers that do not fit in 32 bits and therefore gives
+  // us better testing of code's 64-bit correctness.  It also leads to
+  // less false negatives in heap-checking code.  (Numbers are less
+  // likely to look like pointers and therefore the conservative gc in
+  // the heap-checker is less likely to misinterpret a number as a
+  // pointer).
+  DefaultSysAllocator *sdef = new (default_space.buf) DefaultSysAllocator();
+  if (kDebugMode && sizeof(void*) > 4) {
+    sdef->SetChildAllocator(mmap, 0, mmap_name);
+    sdef->SetChildAllocator(sbrk, 1, sbrk_name);
+  } else {
+    sdef->SetChildAllocator(sbrk, 0, sbrk_name);
+    sdef->SetChildAllocator(mmap, 1, mmap_name);
+  }
+
+  tcmalloc_sys_alloc = tc_get_sysalloc_override(sdef);
+}
+
+void* TCMalloc_SystemAlloc(size_t size, size_t *actual_size,
+                           size_t alignment) {
+  // Discard requests that overflow
+  if (size + alignment < size) return NULL;
+
+  SpinLockHolder lock_holder(&spinlock);
+
+  if (!system_alloc_inited) {
+    InitSystemAllocators();
+    system_alloc_inited = true;
+  }
+
+  // Enforce minimum alignment
+  if (alignment < sizeof(MemoryAligner)) alignment = sizeof(MemoryAligner);
+
+  size_t actual_size_storage;
+  if (actual_size == NULL) {
+    actual_size = &actual_size_storage;
+  }
+
+  void* result = tcmalloc_sys_alloc->Alloc(size, actual_size, alignment);
+  if (result != NULL) {
+    CHECK_CONDITION(
+      CheckAddressBits(reinterpret_cast(result) + *actual_size - 1));
+    TCMalloc_SystemTaken += *actual_size;
+  }
+  return result;
+}
+
+bool TCMalloc_SystemRelease(void* start, size_t length) {
+#ifdef MADV_FREE
+  if (FLAGS_malloc_devmem_start) {
+    // It's not safe to use MADV_FREE/MADV_DONTNEED if we've been
+    // mapping /dev/mem for heap memory.
+    return false;
+  }
+  if (FLAGS_malloc_disable_memory_release) return false;
+  if (pagesize == 0) pagesize = getpagesize();
+  const size_t pagemask = pagesize - 1;
+
+  size_t new_start = reinterpret_cast(start);
+  size_t end = new_start + length;
+  size_t new_end = end;
+
+  // Round up the starting address and round down the ending address
+  // to be page aligned:
+  new_start = (new_start + pagesize - 1) & ~pagemask;
+  new_end = new_end & ~pagemask;
+
+  ASSERT((new_start & pagemask) == 0);
+  ASSERT((new_end & pagemask) == 0);
+  ASSERT(new_start >= reinterpret_cast(start));
+  ASSERT(new_end <= end);
+
+  if (new_end > new_start) {
+    int result;
+    do {
+      result = madvise(reinterpret_cast(new_start),
+          new_end - new_start, MADV_FREE);
+    } while (result == -1 && errno == EAGAIN);
+
+    return result != -1;
+  }
+#endif
+  return false;
+}
+
+void TCMalloc_SystemCommit(void* start, size_t length) {
+  // Nothing to do here.  TCMalloc_SystemRelease does not alter pages
+  // such that they need to be re-committed before they can be used by the
+  // application.
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/system-alloc.h b/trunk/3rdparty/gperftools-2-fit/src/system-alloc.h
new file mode 100644
index 000000000..e88948d67
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/system-alloc.h
@@ -0,0 +1,92 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Routine that uses sbrk/mmap to allocate memory from the system.
+// Useful for implementing malloc.
+
+#ifndef TCMALLOC_SYSTEM_ALLOC_H_
+#define TCMALLOC_SYSTEM_ALLOC_H_
+
+#include 
+#include                      // for size_t
+
+class SysAllocator;
+
+// REQUIRES: "alignment" is a power of two or "0" to indicate default alignment
+//
+// Allocate and return "N" bytes of zeroed memory.
+//
+// If actual_bytes is NULL then the returned memory is exactly the
+// requested size.  If actual bytes is non-NULL then the allocator
+// may optionally return more bytes than asked for (i.e. return an
+// entire "huge" page if a huge page allocator is in use).
+//
+// The returned pointer is a multiple of "alignment" if non-zero. The
+// returned pointer will always be aligned suitably for holding a
+// void*, double, or size_t. In addition, if this platform defines
+// CACHELINE_ALIGNED, the return pointer will always be cacheline
+// aligned.
+//
+// Returns NULL when out of memory.
+extern PERFTOOLS_DLL_DECL
+void* TCMalloc_SystemAlloc(size_t bytes, size_t *actual_bytes,
+			   size_t alignment = 0);
+
+// This call is a hint to the operating system that the pages
+// contained in the specified range of memory will not be used for a
+// while, and can be released for use by other processes or the OS.
+// Pages which are released in this way may be destroyed (zeroed) by
+// the OS.  The benefit of this function is that it frees memory for
+// use by the system, the cost is that the pages are faulted back into
+// the address space next time they are touched, which can impact
+// performance.  (Only pages fully covered by the memory region will
+// be released, partial pages will not.)
+//
+// Returns false if release failed or not supported.
+extern PERFTOOLS_DLL_DECL
+bool TCMalloc_SystemRelease(void* start, size_t length);
+
+// Called to ressurect memory which has been previously released
+// to the system via TCMalloc_SystemRelease.  An attempt to
+// commit a page that is already committed does not cause this
+// function to fail.
+extern PERFTOOLS_DLL_DECL
+void TCMalloc_SystemCommit(void* start, size_t length);
+
+// The current system allocator.
+extern PERFTOOLS_DLL_DECL SysAllocator* tcmalloc_sys_alloc;
+
+// Number of bytes taken from system.
+extern PERFTOOLS_DLL_DECL size_t TCMalloc_SystemTaken;
+
+#endif /* TCMALLOC_SYSTEM_ALLOC_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tcmalloc.cc b/trunk/3rdparty/gperftools-2-fit/src/tcmalloc.cc
new file mode 100644
index 000000000..9ec663e25
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tcmalloc.cc
@@ -0,0 +1,2225 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+//
+// A malloc that uses a per-thread cache to satisfy small malloc requests.
+// (The time for malloc/free of a small object drops from 300 ns to 50 ns.)
+//
+// See docs/tcmalloc.html for a high-level
+// description of how this malloc works.
+//
+// SYNCHRONIZATION
+//  1. The thread-specific lists are accessed without acquiring any locks.
+//     This is safe because each such list is only accessed by one thread.
+//  2. We have a lock per central free-list, and hold it while manipulating
+//     the central free list for a particular size.
+//  3. The central page allocator is protected by "pageheap_lock".
+//  4. The pagemap (which maps from page-number to descriptor),
+//     can be read without holding any locks, and written while holding
+//     the "pageheap_lock".
+//  5. To improve performance, a subset of the information one can get
+//     from the pagemap is cached in a data structure, pagemap_cache_,
+//     that atomically reads and writes its entries.  This cache can be
+//     read and written without locking.
+//
+//     This multi-threaded access to the pagemap is safe for fairly
+//     subtle reasons.  We basically assume that when an object X is
+//     allocated by thread A and deallocated by thread B, there must
+//     have been appropriate synchronization in the handoff of object
+//     X from thread A to thread B.  The same logic applies to pagemap_cache_.
+//
+// THE PAGEID-TO-SIZECLASS CACHE
+// Hot PageID-to-sizeclass mappings are held by pagemap_cache_.  If this cache
+// returns 0 for a particular PageID then that means "no information," not that
+// the sizeclass is 0.  The cache may have stale information for pages that do
+// not hold the beginning of any free()'able object.  Staleness is eliminated
+// in Populate() for pages with sizeclass > 0 objects, and in do_malloc() and
+// do_memalign() for all other relevant pages.
+//
+// PAGEMAP
+// -------
+// Page map contains a mapping from page id to Span.
+//
+// If Span s occupies pages [p..q],
+//      pagemap[p] == s
+//      pagemap[q] == s
+//      pagemap[p+1..q-1] are undefined
+//      pagemap[p-1] and pagemap[q+1] are defined:
+//         NULL if the corresponding page is not yet in the address space.
+//         Otherwise it points to a Span.  This span may be free
+//         or allocated.  If free, it is in one of pageheap's freelist.
+//
+// TODO: Bias reclamation to larger addresses
+// TODO: implement mallinfo/mallopt
+// TODO: Better testing
+//
+// 9/28/2003 (new page-level allocator replaces ptmalloc2):
+// * malloc/free of small objects goes from ~300 ns to ~50 ns.
+// * allocation of a reasonably complicated struct
+//   goes from about 1100 ns to about 300 ns.
+
+#include "config.h"
+// At least for gcc on Linux/i386 and Linux/amd64 not adding throw()
+// to tc_xxx functions actually ends up generating better code.
+#define PERFTOOLS_NOTHROW
+#include 
+
+#include                       // for ENOMEM, EINVAL, errno
+#if defined HAVE_STDINT_H
+#include 
+#elif defined HAVE_INTTYPES_H
+#include 
+#else
+#include 
+#endif
+#include                      // for size_t, NULL
+#include                      // for getenv
+#include                      // for strcmp, memset, strlen, etc
+#ifdef HAVE_UNISTD_H
+#include                      // for getpagesize, write, etc
+#endif
+#include                     // for max, min
+#include                        // for numeric_limits
+#include                           // for nothrow_t (ptr only), etc
+#include                        // for vector
+
+#include 
+#include          // for MallocHook
+#include 
+#include "base/basictypes.h"            // for int64
+#include "base/commandlineflags.h"      // for RegisterFlagValidator, etc
+#include "base/dynamic_annotations.h"   // for RunningOnValgrind
+#include "base/spinlock.h"              // for SpinLockHolder
+#include "central_freelist.h"  // for CentralFreeListPadded
+#include "common.h"            // for StackTrace, kPageShift, etc
+#include "internal_logging.h"  // for ASSERT, TCMalloc_Printer, etc
+#include "linked_list.h"       // for SLL_SetNext
+#include "malloc_hook-inl.h"       // for MallocHook::InvokeNewHook, etc
+#include "page_heap.h"         // for PageHeap, PageHeap::Stats
+#include "page_heap_allocator.h"  // for PageHeapAllocator
+#include "span.h"              // for Span, DLL_Prepend, etc
+#include "stack_trace_table.h"  // for StackTraceTable
+#include "static_vars.h"       // for Static
+#include "system-alloc.h"      // for DumpSystemAllocatorStats, etc
+#include "tcmalloc_guard.h"    // for TCMallocGuard
+#include "thread_cache.h"      // for ThreadCache
+
+#include "maybe_emergency_malloc.h"
+
+#if (defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)) && !defined(WIN32_OVERRIDE_ALLOCATORS)
+# define WIN32_DO_PATCHING 1
+#endif
+
+// Some windows file somewhere (at least on cygwin) #define's small (!)
+#undef small
+
+using std::max;
+using std::min;
+using std::numeric_limits;
+using std::vector;
+
+#include "libc_override.h"
+
+using tcmalloc::AlignmentForSize;
+using tcmalloc::kLog;
+using tcmalloc::kCrash;
+using tcmalloc::kCrashWithStats;
+using tcmalloc::Log;
+using tcmalloc::PageHeap;
+using tcmalloc::PageHeapAllocator;
+using tcmalloc::SizeMap;
+using tcmalloc::Span;
+using tcmalloc::StackTrace;
+using tcmalloc::Static;
+using tcmalloc::ThreadCache;
+
+DECLARE_double(tcmalloc_release_rate);
+DECLARE_int64(tcmalloc_heap_limit_mb);
+
+// Those common architectures are known to be safe w.r.t. aliasing function
+// with "extra" unused args to function with fewer arguments (e.g.
+// tc_delete_nothrow being aliased to tc_delete).
+//
+// Benefit of aliasing is relatively moderate. It reduces instruction
+// cache pressure a bit (not relevant for largely unused
+// tc_delete_nothrow, but is potentially relevant for
+// tc_delete_aligned (or sized)). It also used to be the case that gcc
+// 5+ optimization for merging identical functions kicked in and
+// "screwed" one of the otherwise identical functions with extra
+// jump. I am not able to reproduce that anymore.
+#if !defined(__i386__) && !defined(__x86_64__) && \
+    !defined(__ppc__) && !defined(__PPC__) && \
+    !defined(__aarch64__) && !defined(__mips__) && !defined(__arm__)
+#undef TCMALLOC_NO_ALIASES
+#define TCMALLOC_NO_ALIASES
+#endif
+
+#if defined(__GNUC__) && defined(__ELF__) && !defined(TCMALLOC_NO_ALIASES)
+#define TC_ALIAS(name) __attribute__((alias(#name)))
+#endif
+
+// For windows, the printf we use to report large allocs is
+// potentially dangerous: it could cause a malloc that would cause an
+// infinite loop.  So by default we set the threshold to a huge number
+// on windows, so this bad situation will never trigger.  You can
+// always set TCMALLOC_LARGE_ALLOC_REPORT_THRESHOLD manually if you
+// want this functionality.
+#ifdef _WIN32
+const int64 kDefaultLargeAllocReportThreshold = static_cast(1) << 62;
+#else
+const int64 kDefaultLargeAllocReportThreshold = static_cast(1) << 30;
+#endif
+DEFINE_int64(tcmalloc_large_alloc_report_threshold,
+             EnvToInt64("TCMALLOC_LARGE_ALLOC_REPORT_THRESHOLD",
+                        kDefaultLargeAllocReportThreshold),
+             "Allocations larger than this value cause a stack "
+             "trace to be dumped to stderr.  The threshold for "
+             "dumping stack traces is increased by a factor of 1.125 "
+             "every time we print a message so that the threshold "
+             "automatically goes up by a factor of ~1000 every 60 "
+             "messages.  This bounds the amount of extra logging "
+             "generated by this flag.  Default value of this flag "
+             "is very large and therefore you should see no extra "
+             "logging unless the flag is overridden.  Set to 0 to "
+             "disable reporting entirely.");
+
+
+// We already declared these functions in tcmalloc.h, but we have to
+// declare them again to give them an ATTRIBUTE_SECTION: we want to
+// put all callers of MallocHook::Invoke* in this module into
+// ATTRIBUTE_SECTION(google_malloc) section, so that
+// MallocHook::GetCallerStackTrace can function accurately.
+#ifndef _WIN32   // windows doesn't have attribute_section, so don't bother
+extern "C" {
+  void* tc_malloc(size_t size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_free(void* ptr) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_free_sized(void* ptr, size_t size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void* tc_realloc(void* ptr, size_t size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void* tc_calloc(size_t nmemb, size_t size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_cfree(void* ptr) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+
+  void* tc_memalign(size_t __alignment, size_t __size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  int tc_posix_memalign(void** ptr, size_t align, size_t size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void* tc_valloc(size_t __size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void* tc_pvalloc(size_t __size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+
+  void tc_malloc_stats(void) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  int tc_mallopt(int cmd, int value) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+#ifdef HAVE_STRUCT_MALLINFO
+  struct mallinfo tc_mallinfo(void) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+#endif
+
+  void* tc_new(size_t size)
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_delete(void* p) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_delete_sized(void* p, size_t size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void* tc_newarray(size_t size)
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_deletearray(void* p) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_deletearray_sized(void* p, size_t size) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+
+  // And the nothrow variants of these:
+  void* tc_new_nothrow(size_t size, const std::nothrow_t&) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void* tc_newarray_nothrow(size_t size, const std::nothrow_t&) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  // Surprisingly, standard C++ library implementations use a
+  // nothrow-delete internally.  See, eg:
+  // http://www.dinkumware.com/manuals/?manual=compleat&page=new.html
+  void tc_delete_nothrow(void* ptr, const std::nothrow_t&) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_deletearray_nothrow(void* ptr, const std::nothrow_t&) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+
+#if defined(ENABLE_ALIGNED_NEW_DELETE)
+
+  void* tc_new_aligned(size_t size, std::align_val_t al)
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_delete_aligned(void* p, std::align_val_t al) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_delete_sized_aligned(void* p, size_t size, std::align_val_t al) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void* tc_newarray_aligned(size_t size, std::align_val_t al)
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_deletearray_aligned(void* p, std::align_val_t al) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_deletearray_sized_aligned(void* p, size_t size, std::align_val_t al) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+
+  // And the nothrow variants of these:
+  void* tc_new_aligned_nothrow(size_t size, std::align_val_t al, const std::nothrow_t&) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void* tc_newarray_aligned_nothrow(size_t size, std::align_val_t al, const std::nothrow_t&) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_delete_aligned_nothrow(void* ptr, std::align_val_t al, const std::nothrow_t&) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+  void tc_deletearray_aligned_nothrow(void* ptr, std::align_val_t al, const std::nothrow_t&) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+
+#endif // defined(ENABLE_ALIGNED_NEW_DELETE)
+
+  // Some non-standard extensions that we support.
+
+  // This is equivalent to
+  //    OS X: malloc_size()
+  //    glibc: malloc_usable_size()
+  //    Windows: _msize()
+  size_t tc_malloc_size(void* p) PERFTOOLS_NOTHROW
+      ATTRIBUTE_SECTION(google_malloc);
+}  // extern "C"
+#endif  // #ifndef _WIN32
+
+// ----------------------- IMPLEMENTATION -------------------------------
+
+static int tc_new_mode = 0;  // See tc_set_new_mode().
+
+// Routines such as free() and realloc() catch some erroneous pointers
+// passed to them, and invoke the below when they do.  (An erroneous pointer
+// won't be caught if it's within a valid span or a stale span for which
+// the pagemap cache has a non-zero sizeclass.) This is a cheap (source-editing
+// required) kind of exception handling for these routines.
+namespace {
+ATTRIBUTE_NOINLINE void InvalidFree(void* ptr) {
+  if (tcmalloc::IsEmergencyPtr(ptr)) {
+    tcmalloc::EmergencyFree(ptr);
+    return;
+  }
+  Log(kCrash, __FILE__, __LINE__, "Attempt to free invalid pointer", ptr);
+}
+
+size_t InvalidGetSizeForRealloc(const void* old_ptr) {
+  Log(kCrash, __FILE__, __LINE__,
+      "Attempt to realloc invalid pointer", old_ptr);
+  return 0;
+}
+
+size_t InvalidGetAllocatedSize(const void* ptr) {
+  Log(kCrash, __FILE__, __LINE__,
+      "Attempt to get the size of an invalid pointer", ptr);
+  return 0;
+}
+}  // unnamed namespace
+
+// Extract interesting stats
+struct TCMallocStats {
+  uint64_t thread_bytes;      // Bytes in thread caches
+  uint64_t central_bytes;     // Bytes in central cache
+  uint64_t transfer_bytes;    // Bytes in central transfer cache
+  uint64_t metadata_bytes;    // Bytes alloced for metadata
+  PageHeap::Stats pageheap;   // Stats from page heap
+};
+
+// Get stats into "r".  Also, if class_count != NULL, class_count[k]
+// will be set to the total number of objects of size class k in the
+// central cache, transfer cache, and per-thread caches. If small_spans
+// is non-NULL, it is filled.  Same for large_spans.
+static void ExtractStats(TCMallocStats* r, uint64_t* class_count,
+                         PageHeap::SmallSpanStats* small_spans,
+                         PageHeap::LargeSpanStats* large_spans) {
+  r->central_bytes = 0;
+  r->transfer_bytes = 0;
+  for (int cl = 0; cl < Static::num_size_classes(); ++cl) {
+    const int length = Static::central_cache()[cl].length();
+    const int tc_length = Static::central_cache()[cl].tc_length();
+    const size_t cache_overhead = Static::central_cache()[cl].OverheadBytes();
+    const size_t size = static_cast(
+        Static::sizemap()->ByteSizeForClass(cl));
+    r->central_bytes += (size * length) + cache_overhead;
+    r->transfer_bytes += (size * tc_length);
+    if (class_count) {
+      // Sum the lengths of all per-class freelists, except the per-thread
+      // freelists, which get counted when we call GetThreadStats(), below.
+      class_count[cl] = length + tc_length;
+    }
+
+  }
+
+  // Add stats from per-thread heaps
+  r->thread_bytes = 0;
+  { // scope
+    SpinLockHolder h(Static::pageheap_lock());
+    ThreadCache::GetThreadStats(&r->thread_bytes, class_count);
+    r->metadata_bytes = tcmalloc::metadata_system_bytes();
+    r->pageheap = Static::pageheap()->stats();
+    if (small_spans != NULL) {
+      Static::pageheap()->GetSmallSpanStats(small_spans);
+    }
+    if (large_spans != NULL) {
+      Static::pageheap()->GetLargeSpanStats(large_spans);
+    }
+  }
+}
+
+static double PagesToMiB(uint64_t pages) {
+  return (pages << kPageShift) / 1048576.0;
+}
+
+// WRITE stats to "out"
+static void DumpStats(TCMalloc_Printer* out, int level) {
+  TCMallocStats stats;
+  uint64_t class_count[kClassSizesMax];
+  PageHeap::SmallSpanStats small;
+  PageHeap::LargeSpanStats large;
+  if (level >= 2) {
+    ExtractStats(&stats, class_count, &small, &large);
+  } else {
+    ExtractStats(&stats, NULL, NULL, NULL);
+  }
+
+  static const double MiB = 1048576.0;
+
+  const uint64_t virtual_memory_used = (stats.pageheap.system_bytes
+                                        + stats.metadata_bytes);
+  const uint64_t physical_memory_used = (virtual_memory_used
+                                         - stats.pageheap.unmapped_bytes);
+  const uint64_t bytes_in_use_by_app = (physical_memory_used
+                                        - stats.metadata_bytes
+                                        - stats.pageheap.free_bytes
+                                        - stats.central_bytes
+                                        - stats.transfer_bytes
+                                        - stats.thread_bytes);
+
+#ifdef TCMALLOC_SMALL_BUT_SLOW
+  out->printf(
+      "NOTE:  SMALL MEMORY MODEL IS IN USE, PERFORMANCE MAY SUFFER.\n");
+#endif
+  out->printf(
+      "------------------------------------------------\n"
+      "MALLOC:   %12" PRIu64 " (%7.1f MiB) Bytes in use by application\n"
+      "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in page heap freelist\n"
+      "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in central cache freelist\n"
+      "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in transfer cache freelist\n"
+      "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in thread cache freelists\n"
+      "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in malloc metadata\n"
+      "MALLOC:   ------------\n"
+      "MALLOC: = %12" PRIu64 " (%7.1f MiB) Actual memory used (physical + swap)\n"
+      "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes released to OS (aka unmapped)\n"
+      "MALLOC:   ------------\n"
+      "MALLOC: = %12" PRIu64 " (%7.1f MiB) Virtual address space used\n"
+      "MALLOC:\n"
+      "MALLOC:   %12" PRIu64 "              Spans in use\n"
+      "MALLOC:   %12" PRIu64 "              Thread heaps in use\n"
+      "MALLOC:   %12" PRIu64 "              Tcmalloc page size\n"
+      "------------------------------------------------\n"
+      "Call ReleaseFreeMemory() to release freelist memory to the OS"
+      " (via madvise()).\n"
+      "Bytes released to the OS take up virtual address space"
+      " but no physical memory.\n",
+      bytes_in_use_by_app, bytes_in_use_by_app / MiB,
+      stats.pageheap.free_bytes, stats.pageheap.free_bytes / MiB,
+      stats.central_bytes, stats.central_bytes / MiB,
+      stats.transfer_bytes, stats.transfer_bytes / MiB,
+      stats.thread_bytes, stats.thread_bytes / MiB,
+      stats.metadata_bytes, stats.metadata_bytes / MiB,
+      physical_memory_used, physical_memory_used / MiB,
+      stats.pageheap.unmapped_bytes, stats.pageheap.unmapped_bytes / MiB,
+      virtual_memory_used, virtual_memory_used / MiB,
+      uint64_t(Static::span_allocator()->inuse()),
+      uint64_t(ThreadCache::HeapsInUse()),
+      uint64_t(kPageSize));
+
+  if (level >= 2) {
+    out->printf("------------------------------------------------\n");
+    out->printf("Total size of freelists for per-thread caches,\n");
+    out->printf("transfer cache, and central cache, by size class\n");
+    out->printf("------------------------------------------------\n");
+    uint64_t cumulative_bytes = 0;
+    uint64_t cumulative_overhead = 0;
+    for (uint32 cl = 0; cl < Static::num_size_classes(); ++cl) {
+      if (class_count[cl] > 0) {
+        size_t cl_size = Static::sizemap()->ByteSizeForClass(cl);
+        const uint64_t class_bytes = class_count[cl] * cl_size;
+        cumulative_bytes += class_bytes;
+        const uint64_t class_overhead =
+            Static::central_cache()[cl].OverheadBytes();
+        cumulative_overhead += class_overhead;
+        out->printf("class %3d [ %8zu bytes ] : "
+                "%8" PRIu64 " objs; %5.1f MiB; %5.1f cum MiB; "
+                "%8.3f overhead MiB; %8.3f cum overhead MiB\n",
+                cl, cl_size,
+                class_count[cl],
+                class_bytes / MiB,
+                cumulative_bytes / MiB,
+                class_overhead / MiB,
+                cumulative_overhead / MiB);
+      }
+    }
+
+    // append page heap info
+    int nonempty_sizes = 0;
+    for (int s = 0; s < kMaxPages; s++) {
+      if (small.normal_length[s] + small.returned_length[s] > 0) {
+        nonempty_sizes++;
+      }
+    }
+    out->printf("------------------------------------------------\n");
+    out->printf("PageHeap: %d sizes; %6.1f MiB free; %6.1f MiB unmapped\n",
+                nonempty_sizes, stats.pageheap.free_bytes / MiB,
+                stats.pageheap.unmapped_bytes / MiB);
+    out->printf("------------------------------------------------\n");
+    uint64_t total_normal = 0;
+    uint64_t total_returned = 0;
+    for (int s = 1; s <= kMaxPages; s++) {
+      const int n_length = small.normal_length[s - 1];
+      const int r_length = small.returned_length[s - 1];
+      if (n_length + r_length > 0) {
+        uint64_t n_pages = s * n_length;
+        uint64_t r_pages = s * r_length;
+        total_normal += n_pages;
+        total_returned += r_pages;
+        out->printf("%6u pages * %6u spans ~ %6.1f MiB; %6.1f MiB cum"
+                    "; unmapped: %6.1f MiB; %6.1f MiB cum\n",
+                    s,
+                    (n_length + r_length),
+                    PagesToMiB(n_pages + r_pages),
+                    PagesToMiB(total_normal + total_returned),
+                    PagesToMiB(r_pages),
+                    PagesToMiB(total_returned));
+      }
+    }
+
+    total_normal += large.normal_pages;
+    total_returned += large.returned_pages;
+    out->printf(">%-5u large * %6u spans ~ %6.1f MiB; %6.1f MiB cum"
+                "; unmapped: %6.1f MiB; %6.1f MiB cum\n",
+                static_cast(kMaxPages),
+                static_cast(large.spans),
+                PagesToMiB(large.normal_pages + large.returned_pages),
+                PagesToMiB(total_normal + total_returned),
+                PagesToMiB(large.returned_pages),
+                PagesToMiB(total_returned));
+  }
+}
+
+static void PrintStats(int level) {
+  const int kBufferSize = 16 << 10;
+  char* buffer = new char[kBufferSize];
+  TCMalloc_Printer printer(buffer, kBufferSize);
+  DumpStats(&printer, level);
+  write(STDERR_FILENO, buffer, strlen(buffer));
+  delete[] buffer;
+}
+
+static void** DumpHeapGrowthStackTraces() {
+  // Count how much space we need
+  int needed_slots = 0;
+  {
+    SpinLockHolder h(Static::pageheap_lock());
+    for (StackTrace* t = Static::growth_stacks();
+         t != NULL;
+         t = reinterpret_cast(
+             t->stack[tcmalloc::kMaxStackDepth-1])) {
+      needed_slots += 3 + t->depth;
+    }
+    needed_slots += 100;            // Slop in case list grows
+    needed_slots += needed_slots/8; // An extra 12.5% slop
+  }
+
+  void** result = new void*[needed_slots];
+  if (result == NULL) {
+    Log(kLog, __FILE__, __LINE__,
+        "tcmalloc: allocation failed for stack trace slots",
+        needed_slots * sizeof(*result));
+    return NULL;
+  }
+
+  SpinLockHolder h(Static::pageheap_lock());
+  int used_slots = 0;
+  for (StackTrace* t = Static::growth_stacks();
+       t != NULL;
+       t = reinterpret_cast(
+           t->stack[tcmalloc::kMaxStackDepth-1])) {
+    ASSERT(used_slots < needed_slots);  // Need to leave room for terminator
+    if (used_slots + 3 + t->depth >= needed_slots) {
+      // No more room
+      break;
+    }
+
+    result[used_slots+0] = reinterpret_cast(static_cast(1));
+    result[used_slots+1] = reinterpret_cast(t->size);
+    result[used_slots+2] = reinterpret_cast(t->depth);
+    for (int d = 0; d < t->depth; d++) {
+      result[used_slots+3+d] = t->stack[d];
+    }
+    used_slots += 3 + t->depth;
+  }
+  result[used_slots] = reinterpret_cast(static_cast(0));
+  return result;
+}
+
+static void IterateOverRanges(void* arg, MallocExtension::RangeFunction func) {
+  PageID page = 1;  // Some code may assume that page==0 is never used
+  bool done = false;
+  while (!done) {
+    // Accumulate a small number of ranges in a local buffer
+    static const int kNumRanges = 16;
+    static base::MallocRange ranges[kNumRanges];
+    int n = 0;
+    {
+      SpinLockHolder h(Static::pageheap_lock());
+      while (n < kNumRanges) {
+        if (!Static::pageheap()->GetNextRange(page, &ranges[n])) {
+          done = true;
+          break;
+        } else {
+          uintptr_t limit = ranges[n].address + ranges[n].length;
+          page = (limit + kPageSize - 1) >> kPageShift;
+          n++;
+        }
+      }
+    }
+
+    for (int i = 0; i < n; i++) {
+      (*func)(arg, &ranges[i]);
+    }
+  }
+}
+
+// TCMalloc's support for extra malloc interfaces
+class TCMallocImplementation : public MallocExtension {
+ private:
+  // ReleaseToSystem() might release more than the requested bytes because
+  // the page heap releases at the span granularity, and spans are of wildly
+  // different sizes.  This member keeps track of the extra bytes bytes
+  // released so that the app can periodically call ReleaseToSystem() to
+  // release memory at a constant rate.
+  // NOTE: Protected by Static::pageheap_lock().
+  size_t extra_bytes_released_;
+
+ public:
+  TCMallocImplementation()
+      : extra_bytes_released_(0) {
+  }
+
+  virtual void GetStats(char* buffer, int buffer_length) {
+    ASSERT(buffer_length > 0);
+    TCMalloc_Printer printer(buffer, buffer_length);
+
+    // Print level one stats unless lots of space is available
+    if (buffer_length < 10000) {
+      DumpStats(&printer, 1);
+    } else {
+      DumpStats(&printer, 2);
+    }
+  }
+
+  // We may print an extra, tcmalloc-specific warning message here.
+  virtual void GetHeapSample(MallocExtensionWriter* writer) {
+    if (FLAGS_tcmalloc_sample_parameter == 0) {
+      const char* const kWarningMsg =
+          "%warn\n"
+          "%warn This heap profile does not have any data in it, because\n"
+          "%warn the application was run with heap sampling turned off.\n"
+          "%warn To get useful data from GetHeapSample(), you must\n"
+          "%warn set the environment variable TCMALLOC_SAMPLE_PARAMETER to\n"
+          "%warn a positive sampling period, such as 524288.\n"
+          "%warn\n";
+      writer->append(kWarningMsg, strlen(kWarningMsg));
+    }
+    MallocExtension::GetHeapSample(writer);
+  }
+
+  virtual void** ReadStackTraces(int* sample_period) {
+    tcmalloc::StackTraceTable table;
+    {
+      SpinLockHolder h(Static::pageheap_lock());
+      Span* sampled = Static::sampled_objects();
+      for (Span* s = sampled->next; s != sampled; s = s->next) {
+        table.AddTrace(*reinterpret_cast(s->objects));
+      }
+    }
+    *sample_period = ThreadCache::GetCache()->GetSamplePeriod();
+    return table.ReadStackTracesAndClear(); // grabs and releases pageheap_lock
+  }
+
+  virtual void** ReadHeapGrowthStackTraces() {
+    return DumpHeapGrowthStackTraces();
+  }
+
+  virtual size_t GetThreadCacheSize() {
+    ThreadCache* tc = ThreadCache::GetCacheIfPresent();
+    if (!tc)
+      return 0;
+    return tc->Size();
+  }
+
+  virtual void MarkThreadTemporarilyIdle() {
+    ThreadCache::BecomeTemporarilyIdle();
+  }
+
+  virtual void Ranges(void* arg, RangeFunction func) {
+    IterateOverRanges(arg, func);
+  }
+
+  virtual bool GetNumericProperty(const char* name, size_t* value) {
+    ASSERT(name != NULL);
+
+    if (strcmp(name, "generic.current_allocated_bytes") == 0) {
+      TCMallocStats stats;
+      ExtractStats(&stats, NULL, NULL, NULL);
+      *value = stats.pageheap.system_bytes
+               - stats.thread_bytes
+               - stats.central_bytes
+               - stats.transfer_bytes
+               - stats.pageheap.free_bytes
+               - stats.pageheap.unmapped_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "generic.heap_size") == 0) {
+      TCMallocStats stats;
+      ExtractStats(&stats, NULL, NULL, NULL);
+      *value = stats.pageheap.system_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "generic.total_physical_bytes") == 0) {
+      TCMallocStats stats;
+      ExtractStats(&stats, NULL, NULL, NULL);
+      *value = stats.pageheap.system_bytes + stats.metadata_bytes -
+               stats.pageheap.unmapped_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.slack_bytes") == 0) {
+      // Kept for backwards compatibility.  Now defined externally as:
+      //    pageheap_free_bytes + pageheap_unmapped_bytes.
+      SpinLockHolder l(Static::pageheap_lock());
+      PageHeap::Stats stats = Static::pageheap()->stats();
+      *value = stats.free_bytes + stats.unmapped_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.central_cache_free_bytes") == 0) {
+      TCMallocStats stats;
+      ExtractStats(&stats, NULL, NULL, NULL);
+      *value = stats.central_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.transfer_cache_free_bytes") == 0) {
+      TCMallocStats stats;
+      ExtractStats(&stats, NULL, NULL, NULL);
+      *value = stats.transfer_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.thread_cache_free_bytes") == 0) {
+      TCMallocStats stats;
+      ExtractStats(&stats, NULL, NULL, NULL);
+      *value = stats.thread_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_free_bytes") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().free_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_unmapped_bytes") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().unmapped_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_committed_bytes") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().committed_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_scavenge_count") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().scavenge_count;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_commit_count") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().commit_count;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_total_commit_bytes") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().total_commit_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_decommit_count") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().decommit_count;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_total_decommit_bytes") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().total_decommit_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_reserve_count") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = Static::pageheap()->stats().reserve_count;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.pageheap_total_reserve_bytes") == 0) {
+        SpinLockHolder l(Static::pageheap_lock());
+        *value = Static::pageheap()->stats().total_reserve_bytes;
+        return true;
+    }
+
+    if (strcmp(name, "tcmalloc.max_total_thread_cache_bytes") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = ThreadCache::overall_thread_cache_size();
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.current_total_thread_cache_bytes") == 0) {
+      TCMallocStats stats;
+      ExtractStats(&stats, NULL, NULL, NULL);
+      *value = stats.thread_bytes;
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.aggressive_memory_decommit") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = size_t(Static::pageheap()->GetAggressiveDecommit());
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.heap_limit_mb") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      *value = FLAGS_tcmalloc_heap_limit_mb;
+      return true;
+    }
+
+    return false;
+  }
+
+  virtual bool SetNumericProperty(const char* name, size_t value) {
+    ASSERT(name != NULL);
+
+    if (strcmp(name, "tcmalloc.max_total_thread_cache_bytes") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      ThreadCache::set_overall_thread_cache_size(value);
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.aggressive_memory_decommit") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      Static::pageheap()->SetAggressiveDecommit(value != 0);
+      return true;
+    }
+
+    if (strcmp(name, "tcmalloc.heap_limit_mb") == 0) {
+      SpinLockHolder l(Static::pageheap_lock());
+      FLAGS_tcmalloc_heap_limit_mb = value;
+      return true;
+    }
+
+    return false;
+  }
+
+  virtual void MarkThreadIdle() {
+    ThreadCache::BecomeIdle();
+  }
+
+  virtual void MarkThreadBusy();  // Implemented below
+
+  virtual SysAllocator* GetSystemAllocator() {
+    SpinLockHolder h(Static::pageheap_lock());
+    return tcmalloc_sys_alloc;
+  }
+
+  virtual void SetSystemAllocator(SysAllocator* alloc) {
+    SpinLockHolder h(Static::pageheap_lock());
+    tcmalloc_sys_alloc = alloc;
+  }
+
+  virtual void ReleaseToSystem(size_t num_bytes) {
+    SpinLockHolder h(Static::pageheap_lock());
+    if (num_bytes <= extra_bytes_released_) {
+      // We released too much on a prior call, so don't release any
+      // more this time.
+      extra_bytes_released_ = extra_bytes_released_ - num_bytes;
+      return;
+    }
+    num_bytes = num_bytes - extra_bytes_released_;
+    // num_bytes might be less than one page.  If we pass zero to
+    // ReleaseAtLeastNPages, it won't do anything, so we release a whole
+    // page now and let extra_bytes_released_ smooth it out over time.
+    Length num_pages = max(num_bytes >> kPageShift, 1);
+    size_t bytes_released = Static::pageheap()->ReleaseAtLeastNPages(
+        num_pages) << kPageShift;
+    if (bytes_released > num_bytes) {
+      extra_bytes_released_ = bytes_released - num_bytes;
+    } else {
+      // The PageHeap wasn't able to release num_bytes.  Don't try to
+      // compensate with a big release next time.  Specifically,
+      // ReleaseFreeMemory() calls ReleaseToSystem(LONG_MAX).
+      extra_bytes_released_ = 0;
+    }
+  }
+
+  virtual void SetMemoryReleaseRate(double rate) {
+    FLAGS_tcmalloc_release_rate = rate;
+  }
+
+  virtual double GetMemoryReleaseRate() {
+    return FLAGS_tcmalloc_release_rate;
+  }
+  virtual size_t GetEstimatedAllocatedSize(size_t size);
+
+  // This just calls GetSizeWithCallback, but because that's in an
+  // unnamed namespace, we need to move the definition below it in the
+  // file.
+  virtual size_t GetAllocatedSize(const void* ptr);
+
+  // This duplicates some of the logic in GetSizeWithCallback, but is
+  // faster.  This is important on OS X, where this function is called
+  // on every allocation operation.
+  virtual Ownership GetOwnership(const void* ptr) {
+    const PageID p = reinterpret_cast(ptr) >> kPageShift;
+    // The rest of tcmalloc assumes that all allocated pointers use at
+    // most kAddressBits bits.  If ptr doesn't, then it definitely
+    // wasn't alloacted by tcmalloc.
+    if ((p >> (kAddressBits - kPageShift)) > 0) {
+      return kNotOwned;
+    }
+    uint32 cl;
+    if (Static::pageheap()->TryGetSizeClass(p, &cl)) {
+      return kOwned;
+    }
+    const Span *span = Static::pageheap()->GetDescriptor(p);
+    return span ? kOwned : kNotOwned;
+  }
+
+  virtual void GetFreeListSizes(vector* v) {
+    static const char kCentralCacheType[] = "tcmalloc.central";
+    static const char kTransferCacheType[] = "tcmalloc.transfer";
+    static const char kThreadCacheType[] = "tcmalloc.thread";
+    static const char kPageHeapType[] = "tcmalloc.page";
+    static const char kPageHeapUnmappedType[] = "tcmalloc.page_unmapped";
+    static const char kLargeSpanType[] = "tcmalloc.large";
+    static const char kLargeUnmappedSpanType[] = "tcmalloc.large_unmapped";
+
+    v->clear();
+
+    // central class information
+    int64 prev_class_size = 0;
+    for (int cl = 1; cl < Static::num_size_classes(); ++cl) {
+      size_t class_size = Static::sizemap()->ByteSizeForClass(cl);
+      MallocExtension::FreeListInfo i;
+      i.min_object_size = prev_class_size + 1;
+      i.max_object_size = class_size;
+      i.total_bytes_free =
+          Static::central_cache()[cl].length() * class_size;
+      i.type = kCentralCacheType;
+      v->push_back(i);
+
+      // transfer cache
+      i.total_bytes_free =
+          Static::central_cache()[cl].tc_length() * class_size;
+      i.type = kTransferCacheType;
+      v->push_back(i);
+
+      prev_class_size = Static::sizemap()->ByteSizeForClass(cl);
+    }
+
+    // Add stats from per-thread heaps
+    uint64_t class_count[kClassSizesMax];
+    memset(class_count, 0, sizeof(class_count));
+    {
+      SpinLockHolder h(Static::pageheap_lock());
+      uint64_t thread_bytes = 0;
+      ThreadCache::GetThreadStats(&thread_bytes, class_count);
+    }
+
+    prev_class_size = 0;
+    for (int cl = 1; cl < Static::num_size_classes(); ++cl) {
+      MallocExtension::FreeListInfo i;
+      i.min_object_size = prev_class_size + 1;
+      i.max_object_size = Static::sizemap()->ByteSizeForClass(cl);
+      i.total_bytes_free =
+          class_count[cl] * Static::sizemap()->ByteSizeForClass(cl);
+      i.type = kThreadCacheType;
+      v->push_back(i);
+
+      prev_class_size = Static::sizemap()->ByteSizeForClass(cl);
+    }
+
+    // append page heap info
+    PageHeap::SmallSpanStats small;
+    PageHeap::LargeSpanStats large;
+    {
+      SpinLockHolder h(Static::pageheap_lock());
+      Static::pageheap()->GetSmallSpanStats(&small);
+      Static::pageheap()->GetLargeSpanStats(&large);
+    }
+
+    // large spans: mapped
+    MallocExtension::FreeListInfo span_info;
+    span_info.type = kLargeSpanType;
+    span_info.max_object_size = (numeric_limits::max)();
+    span_info.min_object_size = kMaxPages << kPageShift;
+    span_info.total_bytes_free = large.normal_pages << kPageShift;
+    v->push_back(span_info);
+
+    // large spans: unmapped
+    span_info.type = kLargeUnmappedSpanType;
+    span_info.total_bytes_free = large.returned_pages << kPageShift;
+    v->push_back(span_info);
+
+    // small spans
+    for (int s = 1; s <= kMaxPages; s++) {
+      MallocExtension::FreeListInfo i;
+      i.max_object_size = (s << kPageShift);
+      i.min_object_size = ((s - 1) << kPageShift);
+
+      i.type = kPageHeapType;
+      i.total_bytes_free = (s << kPageShift) * small.normal_length[s - 1];
+      v->push_back(i);
+
+      i.type = kPageHeapUnmappedType;
+      i.total_bytes_free = (s << kPageShift) * small.returned_length[s - 1];
+      v->push_back(i);
+    }
+  }
+};
+
+static inline ATTRIBUTE_ALWAYS_INLINE
+size_t align_size_up(size_t size, size_t align) {
+  ASSERT(align <= kPageSize);
+  size_t new_size = (size + align - 1) & ~(align - 1);
+  if (PREDICT_FALSE(new_size == 0)) {
+    // Note, new_size == 0 catches both integer overflow and size
+    // being 0.
+    if (size == 0) {
+      new_size = align;
+    } else {
+      new_size = size;
+    }
+  }
+  return new_size;
+}
+
+// Puts in *cl size class that is suitable for allocation of size bytes with
+// align alignment. Returns true if such size class exists and false otherwise.
+static bool size_class_with_alignment(size_t size, size_t align, uint32_t* cl) {
+  if (PREDICT_FALSE(align > kPageSize)) {
+    return false;
+  }
+  size = align_size_up(size, align);
+  if (PREDICT_FALSE(!Static::sizemap()->GetSizeClass(size, cl))) {
+    return false;
+  }
+  ASSERT((Static::sizemap()->class_to_size(*cl) & (align - 1)) == 0);
+  return true;
+}
+
+// nallocx slow path. Moved to a separate function because
+// ThreadCache::InitModule is not inlined which would cause nallocx to
+// become non-leaf function with stack frame and stack spills.
+static ATTRIBUTE_NOINLINE size_t nallocx_slow(size_t size, int flags) {
+  if (PREDICT_FALSE(!Static::IsInited())) ThreadCache::InitModule();
+
+  size_t align = static_cast(1ull << (flags & 0x3f));
+  uint32 cl;
+  bool ok = size_class_with_alignment(size, align, &cl);
+  if (ok) {
+    return Static::sizemap()->ByteSizeForClass(cl);
+  } else {
+    return tcmalloc::pages(size) << kPageShift;
+  }
+}
+
+// The nallocx function allocates no memory, but it performs the same size
+// computation as the malloc function, and returns the real size of the
+// allocation that would result from the equivalent malloc function call.
+// nallocx is a malloc extension originally implemented by jemalloc:
+// http://www.unix.com/man-page/freebsd/3/nallocx/
+extern "C" PERFTOOLS_DLL_DECL
+size_t tc_nallocx(size_t size, int flags) {
+  if (PREDICT_FALSE(flags != 0)) {
+    return nallocx_slow(size, flags);
+  }
+  uint32 cl;
+  // size class 0 is only possible if malloc is not yet initialized
+  if (Static::sizemap()->GetSizeClass(size, &cl) && cl != 0) {
+    return Static::sizemap()->ByteSizeForClass(cl);
+  } else {
+    return nallocx_slow(size, 0);
+  }
+}
+
+extern "C" PERFTOOLS_DLL_DECL
+size_t nallocx(size_t size, int flags)
+#ifdef TC_ALIAS
+  TC_ALIAS(tc_nallocx);
+#else
+{
+  return nallocx_slow(size, flags);
+}
+#endif
+
+
+size_t TCMallocImplementation::GetEstimatedAllocatedSize(size_t size) {
+  return tc_nallocx(size, 0);
+}
+
+// The constructor allocates an object to ensure that initialization
+// runs before main(), and therefore we do not have a chance to become
+// multi-threaded before initialization.  We also create the TSD key
+// here.  Presumably by the time this constructor runs, glibc is in
+// good enough shape to handle pthread_key_create().
+//
+// The constructor also takes the opportunity to tell STL to use
+// tcmalloc.  We want to do this early, before construct time, so
+// all user STL allocations go through tcmalloc (which works really
+// well for STL).
+//
+// The destructor prints stats when the program exits.
+static int tcmallocguard_refcount = 0;  // no lock needed: runs before main()
+TCMallocGuard::TCMallocGuard() {
+  if (tcmallocguard_refcount++ == 0) {
+    ReplaceSystemAlloc();    // defined in libc_override_*.h
+    tc_free(tc_malloc(1));
+    ThreadCache::InitTSD();
+    tc_free(tc_malloc(1));
+    // Either we, or debugallocation.cc, or valgrind will control memory
+    // management.  We register our extension if we're the winner.
+#ifdef TCMALLOC_USING_DEBUGALLOCATION
+    // Let debugallocation register its extension.
+#else
+    if (RunningOnValgrind()) {
+      // Let Valgrind uses its own malloc (so don't register our extension).
+    } else {
+      MallocExtension::Register(new TCMallocImplementation);
+    }
+#endif
+  }
+}
+
+TCMallocGuard::~TCMallocGuard() {
+  if (--tcmallocguard_refcount == 0) {
+    const char* env = NULL;
+    if (!RunningOnValgrind()) {
+      // Valgrind uses it's own malloc so we cannot do MALLOCSTATS
+      env = getenv("MALLOCSTATS");
+    }
+    if (env != NULL) {
+      int level = atoi(env);
+      if (level < 1) level = 1;
+      PrintStats(level);
+    }
+  }
+}
+#ifndef WIN32_OVERRIDE_ALLOCATORS
+static TCMallocGuard module_enter_exit_hook;
+#endif
+
+//-------------------------------------------------------------------
+// Helpers for the exported routines below
+//-------------------------------------------------------------------
+
+static inline bool CheckCachedSizeClass(void *ptr) {
+  PageID p = reinterpret_cast(ptr) >> kPageShift;
+  uint32 cached_value;
+  if (!Static::pageheap()->TryGetSizeClass(p, &cached_value)) {
+    return true;
+  }
+  return cached_value == Static::pageheap()->GetDescriptor(p)->sizeclass;
+}
+
+static inline ATTRIBUTE_ALWAYS_INLINE void* CheckedMallocResult(void *result) {
+  ASSERT(result == NULL || CheckCachedSizeClass(result));
+  return result;
+}
+
+static inline ATTRIBUTE_ALWAYS_INLINE void* SpanToMallocResult(Span *span) {
+  Static::pageheap()->InvalidateCachedSizeClass(span->start);
+  return
+      CheckedMallocResult(reinterpret_cast(span->start << kPageShift));
+}
+
+static void* DoSampledAllocation(size_t size) {
+#ifndef NO_TCMALLOC_SAMPLES
+  // Grab the stack trace outside the heap lock
+  StackTrace tmp;
+  tmp.depth = GetStackTrace(tmp.stack, tcmalloc::kMaxStackDepth, 1);
+  tmp.size = size;
+
+  SpinLockHolder h(Static::pageheap_lock());
+  // Allocate span
+  Span *span = Static::pageheap()->New(tcmalloc::pages(size == 0 ? 1 : size));
+  if (PREDICT_FALSE(span == NULL)) {
+    return NULL;
+  }
+
+  // Allocate stack trace
+  StackTrace *stack = Static::stacktrace_allocator()->New();
+  if (PREDICT_FALSE(stack == NULL)) {
+    // Sampling failed because of lack of memory
+    return span;
+  }
+  *stack = tmp;
+  span->sample = 1;
+  span->objects = stack;
+  tcmalloc::DLL_Prepend(Static::sampled_objects(), span);
+
+  return SpanToMallocResult(span);
+#else
+  abort();
+#endif
+}
+
+namespace {
+
+typedef void* (*malloc_fn)(void *arg);
+
+SpinLock set_new_handler_lock(SpinLock::LINKER_INITIALIZED);
+
+void* handle_oom(malloc_fn retry_fn,
+                 void* retry_arg,
+                 bool from_operator,
+                 bool nothrow) {
+  // we hit out of memory condition, usually if it happens we've
+  // called sbrk or mmap and failed, and thus errno is set. But there
+  // is support for setting up custom system allocator or setting up
+  // page heap size limit, in which cases errno may remain
+  // untouched.
+  //
+  // So we set errno here. C++ operator new doesn't require ENOMEM to
+  // be set, but doesn't forbid it too (and often C++ oom does happen
+  // with ENOMEM set).
+  errno = ENOMEM;
+  if (!from_operator && !tc_new_mode) {
+    // we're out of memory in C library function (malloc etc) and no
+    // "new mode" forced on us. Just return NULL
+    return NULL;
+  }
+  // we're OOM in operator new or "new mode" is set. We might have to
+  // call new_handle and maybe retry allocation.
+
+  for (;;) {
+    // Get the current new handler.  NB: this function is not
+    // thread-safe.  We make a feeble stab at making it so here, but
+    // this lock only protects against tcmalloc interfering with
+    // itself, not with other libraries calling set_new_handler.
+    std::new_handler nh;
+    {
+      SpinLockHolder h(&set_new_handler_lock);
+      nh = std::set_new_handler(0);
+      (void) std::set_new_handler(nh);
+    }
+#if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS)
+    if (!nh) {
+      return NULL;
+    }
+    // Since exceptions are disabled, we don't really know if new_handler
+    // failed.  Assume it will abort if it fails.
+    (*nh)();
+#else
+    // If no new_handler is established, the allocation failed.
+    if (!nh) {
+      if (nothrow) {
+        return NULL;
+      }
+      throw std::bad_alloc();
+    }
+    // Otherwise, try the new_handler.  If it returns, retry the
+    // allocation.  If it throws std::bad_alloc, fail the allocation.
+    // if it throws something else, don't interfere.
+    try {
+      (*nh)();
+    } catch (const std::bad_alloc&) {
+      if (!nothrow) throw;
+      return NULL;
+    }
+#endif  // (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS)
+
+    // we get here if new_handler returns successfully. So we retry
+    // allocation.
+    void* rv = retry_fn(retry_arg);
+    if (rv != NULL) {
+      return rv;
+    }
+
+    // if allocation failed again we go to next loop iteration
+  }
+}
+
+// Copy of FLAGS_tcmalloc_large_alloc_report_threshold with
+// automatic increases factored in.
+#ifdef ENABLE_LARGE_ALLOC_REPORT
+static int64_t large_alloc_threshold =
+  (kPageSize > FLAGS_tcmalloc_large_alloc_report_threshold
+   ? kPageSize : FLAGS_tcmalloc_large_alloc_report_threshold);
+#endif
+
+static void ReportLargeAlloc(Length num_pages, void* result) {
+  StackTrace stack;
+  stack.depth = GetStackTrace(stack.stack, tcmalloc::kMaxStackDepth, 1);
+
+  static const int N = 1000;
+  char buffer[N];
+  TCMalloc_Printer printer(buffer, N);
+  printer.printf("tcmalloc: large alloc %" PRIu64 " bytes == %p @ ",
+                 static_cast(num_pages) << kPageShift,
+                 result);
+  for (int i = 0; i < stack.depth; i++) {
+    printer.printf(" %p", stack.stack[i]);
+  }
+  printer.printf("\n");
+  write(STDERR_FILENO, buffer, strlen(buffer));
+}
+
+// Must be called with the page lock held.
+inline bool should_report_large(Length num_pages) {
+#ifdef ENABLE_LARGE_ALLOC_REPORT
+  const int64 threshold = large_alloc_threshold;
+  if (threshold > 0 && num_pages >= (threshold >> kPageShift)) {
+    // Increase the threshold by 1/8 every time we generate a report.
+    // We cap the threshold at 8GiB to avoid overflow problems.
+    large_alloc_threshold = (threshold + threshold/8 < 8ll<<30
+                             ? threshold + threshold/8 : 8ll<<30);
+    return true;
+  }
+#endif
+  return false;
+}
+
+// Helper for do_malloc().
+static void* do_malloc_pages(ThreadCache* heap, size_t size) {
+  void* result;
+  bool report_large;
+
+  Length num_pages = tcmalloc::pages(size);
+
+  // NOTE: we're passing original size here as opposed to rounded-up
+  // size as we do in do_malloc_small. The difference is small here
+  // (at most 4k out of at least 256k). And not rounding up saves us
+  // from possibility of overflow, which rounding up could produce.
+  //
+  // See https://github.com/gperftools/gperftools/issues/723
+  if (heap->SampleAllocation(size)) {
+    result = DoSampledAllocation(size);
+
+    SpinLockHolder h(Static::pageheap_lock());
+    report_large = should_report_large(num_pages);
+  } else {
+    SpinLockHolder h(Static::pageheap_lock());
+    Span* span = Static::pageheap()->New(num_pages);
+    result = (PREDICT_FALSE(span == NULL) ? NULL : SpanToMallocResult(span));
+    report_large = should_report_large(num_pages);
+  }
+
+  if (report_large) {
+    ReportLargeAlloc(num_pages, result);
+  }
+  return result;
+}
+
+static void *nop_oom_handler(size_t size) {
+  return NULL;
+}
+
+ATTRIBUTE_ALWAYS_INLINE inline void* do_malloc(size_t size) {
+  if (PREDICT_FALSE(ThreadCache::IsUseEmergencyMalloc())) {
+    return tcmalloc::EmergencyMalloc(size);
+  }
+
+  // note: it will force initialization of malloc if necessary
+  ThreadCache* cache = ThreadCache::GetCache();
+  uint32 cl;
+
+  ASSERT(Static::IsInited());
+  ASSERT(cache != NULL);
+
+  if (PREDICT_FALSE(!Static::sizemap()->GetSizeClass(size, &cl))) {
+    return do_malloc_pages(cache, size);
+  }
+
+  size_t allocated_size = Static::sizemap()->class_to_size(cl);
+  if (PREDICT_FALSE(cache->SampleAllocation(allocated_size))) {
+    return DoSampledAllocation(size);
+  }
+
+  // The common case, and also the simplest.  This just pops the
+  // size-appropriate freelist, after replenishing it if it's empty.
+  return CheckedMallocResult(cache->Allocate(allocated_size, cl, nop_oom_handler));
+}
+
+static void *retry_malloc(void* size) {
+  return do_malloc(reinterpret_cast(size));
+}
+
+ATTRIBUTE_ALWAYS_INLINE inline void* do_malloc_or_cpp_alloc(size_t size) {
+  void *rv = do_malloc(size);
+  if (PREDICT_TRUE(rv != NULL)) {
+    return rv;
+  }
+  return handle_oom(retry_malloc, reinterpret_cast(size),
+                    false, true);
+}
+
+ATTRIBUTE_ALWAYS_INLINE inline void* do_calloc(size_t n, size_t elem_size) {
+  // Overflow check
+  const size_t size = n * elem_size;
+  if (elem_size != 0 && size / elem_size != n) return NULL;
+
+  void* result = do_malloc_or_cpp_alloc(size);
+  if (result != NULL) {
+    memset(result, 0, tc_nallocx(size, 0));
+  }
+  return result;
+}
+
+// If ptr is NULL, do nothing.  Otherwise invoke the given function.
+inline void free_null_or_invalid(void* ptr, void (*invalid_free_fn)(void*)) {
+  if (ptr != NULL) {
+    (*invalid_free_fn)(ptr);
+  }
+}
+
+static ATTRIBUTE_NOINLINE void do_free_pages(Span* span, void* ptr) {
+  SpinLockHolder h(Static::pageheap_lock());
+  if (span->sample) {
+    StackTrace* st = reinterpret_cast(span->objects);
+    tcmalloc::DLL_Remove(span);
+    Static::stacktrace_allocator()->Delete(st);
+    span->objects = NULL;
+  }
+  Static::pageheap()->Delete(span);
+}
+
+#ifndef NDEBUG
+// note, with sized deletions we have no means to support win32
+// behavior where we detect "not ours" points and delegate them native
+// memory management. This is because nature of sized deletes
+// bypassing addr -> size class checks. So in this validation code we
+// also assume that sized delete is always used with "our" pointers.
+bool ValidateSizeHint(void* ptr, size_t size_hint) {
+  const PageID p = reinterpret_cast(ptr) >> kPageShift;
+  Span* span  = Static::pageheap()->GetDescriptor(p);
+  uint32 cl = 0;
+  Static::sizemap()->GetSizeClass(size_hint, &cl);
+  return (span->sizeclass == cl);
+}
+#endif
+
+// Helper for the object deletion (free, delete, etc.).  Inputs:
+//   ptr is object to be freed
+//   invalid_free_fn is a function that gets invoked on certain "bad frees"
+//
+// We can usually detect the case where ptr is not pointing to a page that
+// tcmalloc is using, and in those cases we invoke invalid_free_fn.
+ATTRIBUTE_ALWAYS_INLINE inline
+void do_free_with_callback(void* ptr,
+                           void (*invalid_free_fn)(void*),
+                           bool use_hint, size_t size_hint) {
+  ThreadCache* heap = ThreadCache::GetCacheIfPresent();
+
+  const PageID p = reinterpret_cast(ptr) >> kPageShift;
+  uint32 cl;
+
+  ASSERT(!use_hint || ValidateSizeHint(ptr, size_hint));
+
+  if (!use_hint || PREDICT_FALSE(!Static::sizemap()->GetSizeClass(size_hint, &cl))) {
+    // if we're in sized delete, but size is too large, no need to
+    // probe size cache
+    bool cache_hit = !use_hint && Static::pageheap()->TryGetSizeClass(p, &cl);
+    if (PREDICT_FALSE(!cache_hit)) {
+      Span* span  = Static::pageheap()->GetDescriptor(p);
+      if (PREDICT_FALSE(!span)) {
+        // span can be NULL because the pointer passed in is NULL or invalid
+        // (not something returned by malloc or friends), or because the
+        // pointer was allocated with some other allocator besides
+        // tcmalloc.  The latter can happen if tcmalloc is linked in via
+        // a dynamic library, but is not listed last on the link line.
+        // In that case, libraries after it on the link line will
+        // allocate with libc malloc, but free with tcmalloc's free.
+        free_null_or_invalid(ptr, invalid_free_fn);
+        return;
+      }
+      cl = span->sizeclass;
+      if (PREDICT_FALSE(cl == 0)) {
+        ASSERT(reinterpret_cast(ptr) % kPageSize == 0);
+        ASSERT(span != NULL && span->start == p);
+        do_free_pages(span, ptr);
+        return;
+      }
+      if (!use_hint) {
+        Static::pageheap()->SetCachedSizeClass(p, cl);
+      }
+    }
+  }
+
+  if (PREDICT_TRUE(heap != NULL)) {
+    ASSERT(Static::IsInited());
+    // If we've hit initialized thread cache, so we're done.
+    heap->Deallocate(ptr, cl);
+    return;
+  }
+
+  if (PREDICT_FALSE(!Static::IsInited())) {
+    // if free was called very early we've could have missed the case
+    // of invalid or nullptr free. I.e. because probing size classes
+    // cache could return bogus result (cl = 0 as of this
+    // writing). But since there is no way we could be dealing with
+    // ptr we've allocated, since successfull malloc implies IsInited,
+    // we can just call "invalid free" handling code.
+    free_null_or_invalid(ptr, invalid_free_fn);
+    return;
+  }
+
+  // Otherwise, delete directly into central cache
+  tcmalloc::SLL_SetNext(ptr, NULL);
+  Static::central_cache()[cl].InsertRange(ptr, ptr, 1);
+}
+
+// The default "do_free" that uses the default callback.
+ATTRIBUTE_ALWAYS_INLINE inline void do_free(void* ptr) {
+  return do_free_with_callback(ptr, &InvalidFree, false, 0);
+}
+
+// NOTE: some logic here is duplicated in GetOwnership (above), for
+// speed.  If you change this function, look at that one too.
+inline size_t GetSizeWithCallback(const void* ptr,
+                                  size_t (*invalid_getsize_fn)(const void*)) {
+  if (ptr == NULL)
+    return 0;
+  const PageID p = reinterpret_cast(ptr) >> kPageShift;
+  uint32 cl;
+  if (Static::pageheap()->TryGetSizeClass(p, &cl)) {
+    return Static::sizemap()->ByteSizeForClass(cl);
+  }
+
+  const Span *span = Static::pageheap()->GetDescriptor(p);
+  if (PREDICT_FALSE(span == NULL)) {  // means we do not own this memory
+    return (*invalid_getsize_fn)(ptr);
+  }
+
+  if (span->sizeclass != 0) {
+    return Static::sizemap()->ByteSizeForClass(span->sizeclass);
+  }
+
+  if (span->sample) {
+    size_t orig_size = reinterpret_cast(span->objects)->size;
+    return tc_nallocx(orig_size, 0);
+  }
+
+  return span->length << kPageShift;
+}
+
+// This lets you call back to a given function pointer if ptr is invalid.
+// It is used primarily by windows code which wants a specialized callback.
+ATTRIBUTE_ALWAYS_INLINE inline void* do_realloc_with_callback(
+    void* old_ptr, size_t new_size,
+    void (*invalid_free_fn)(void*),
+    size_t (*invalid_get_size_fn)(const void*)) {
+  // Get the size of the old entry
+  const size_t old_size = GetSizeWithCallback(old_ptr, invalid_get_size_fn);
+
+  // Reallocate if the new size is larger than the old size,
+  // or if the new size is significantly smaller than the old size.
+  // We do hysteresis to avoid resizing ping-pongs:
+  //    . If we need to grow, grow to max(new_size, old_size * 1.X)
+  //    . Don't shrink unless new_size < old_size * 0.Y
+  // X and Y trade-off time for wasted space.  For now we do 1.25 and 0.5.
+  const size_t min_growth = min(old_size / 4,
+      (std::numeric_limits::max)() - old_size);  // Avoid overflow.
+  const size_t lower_bound_to_grow = old_size + min_growth;
+  const size_t upper_bound_to_shrink = old_size / 2ul;
+  if ((new_size > old_size) || (new_size < upper_bound_to_shrink)) {
+    // Need to reallocate.
+    void* new_ptr = NULL;
+
+    if (new_size > old_size && new_size < lower_bound_to_grow) {
+      new_ptr = do_malloc_or_cpp_alloc(lower_bound_to_grow);
+    }
+    if (new_ptr == NULL) {
+      // Either new_size is not a tiny increment, or last do_malloc failed.
+      new_ptr = do_malloc_or_cpp_alloc(new_size);
+    }
+    if (PREDICT_FALSE(new_ptr == NULL)) {
+      return NULL;
+    }
+    MallocHook::InvokeNewHook(new_ptr, new_size);
+    memcpy(new_ptr, old_ptr, ((old_size < new_size) ? old_size : new_size));
+    MallocHook::InvokeDeleteHook(old_ptr);
+    // We could use a variant of do_free() that leverages the fact
+    // that we already know the sizeclass of old_ptr.  The benefit
+    // would be small, so don't bother.
+    do_free_with_callback(old_ptr, invalid_free_fn, false, 0);
+    return new_ptr;
+  } else {
+    // We still need to call hooks to report the updated size:
+    MallocHook::InvokeDeleteHook(old_ptr);
+    MallocHook::InvokeNewHook(old_ptr, new_size);
+    return old_ptr;
+  }
+}
+
+ATTRIBUTE_ALWAYS_INLINE inline void* do_realloc(void* old_ptr, size_t new_size) {
+  return do_realloc_with_callback(old_ptr, new_size,
+                                  &InvalidFree, &InvalidGetSizeForRealloc);
+}
+
+static ATTRIBUTE_ALWAYS_INLINE inline
+void* do_memalign_pages(size_t align, size_t size) {
+  ASSERT((align & (align - 1)) == 0);
+  ASSERT(align > kPageSize);
+  if (size + align < size) return NULL;         // Overflow
+
+  if (PREDICT_FALSE(Static::pageheap() == NULL)) ThreadCache::InitModule();
+
+  // Allocate at least one byte to avoid boundary conditions below
+  if (size == 0) size = 1;
+
+  // We will allocate directly from the page heap
+  SpinLockHolder h(Static::pageheap_lock());
+
+  // Allocate extra pages and carve off an aligned portion
+  const Length alloc = tcmalloc::pages(size + align);
+  Span* span = Static::pageheap()->New(alloc);
+  if (PREDICT_FALSE(span == NULL)) return NULL;
+
+  // Skip starting portion so that we end up aligned
+  Length skip = 0;
+  while ((((span->start+skip) << kPageShift) & (align - 1)) != 0) {
+    skip++;
+  }
+  ASSERT(skip < alloc);
+  if (skip > 0) {
+    Span* rest = Static::pageheap()->Split(span, skip);
+    Static::pageheap()->Delete(span);
+    span = rest;
+  }
+
+  // Skip trailing portion that we do not need to return
+  const Length needed = tcmalloc::pages(size);
+  ASSERT(span->length >= needed);
+  if (span->length > needed) {
+    Span* trailer = Static::pageheap()->Split(span, needed);
+    Static::pageheap()->Delete(trailer);
+  }
+  return SpanToMallocResult(span);
+}
+
+// Helpers for use by exported routines below:
+
+inline void do_malloc_stats() {
+  PrintStats(1);
+}
+
+inline int do_mallopt(int cmd, int value) {
+  return 1;     // Indicates error
+}
+
+#ifdef HAVE_STRUCT_MALLINFO
+inline struct mallinfo do_mallinfo() {
+  TCMallocStats stats;
+  ExtractStats(&stats, NULL, NULL, NULL);
+
+  // Just some of the fields are filled in.
+  struct mallinfo info;
+  memset(&info, 0, sizeof(info));
+
+  // Unfortunately, the struct contains "int" field, so some of the
+  // size values will be truncated.
+  info.arena     = static_cast(stats.pageheap.system_bytes);
+  info.fsmblks   = static_cast(stats.thread_bytes
+                                    + stats.central_bytes
+                                    + stats.transfer_bytes);
+  info.fordblks  = static_cast(stats.pageheap.free_bytes +
+                                    stats.pageheap.unmapped_bytes);
+  info.uordblks  = static_cast(stats.pageheap.system_bytes
+                                    - stats.thread_bytes
+                                    - stats.central_bytes
+                                    - stats.transfer_bytes
+                                    - stats.pageheap.free_bytes
+                                    - stats.pageheap.unmapped_bytes);
+
+  return info;
+}
+#endif  // HAVE_STRUCT_MALLINFO
+
+}  // end unnamed namespace
+
+// As promised, the definition of this function, declared above.
+size_t TCMallocImplementation::GetAllocatedSize(const void* ptr) {
+  if (ptr == NULL)
+    return 0;
+  ASSERT(TCMallocImplementation::GetOwnership(ptr)
+         != TCMallocImplementation::kNotOwned);
+  return GetSizeWithCallback(ptr, &InvalidGetAllocatedSize);
+}
+
+void TCMallocImplementation::MarkThreadBusy() {
+  // Allocate to force the creation of a thread cache, but avoid
+  // invoking any hooks.
+  do_free(do_malloc(0));
+}
+
+//-------------------------------------------------------------------
+// Exported routines
+//-------------------------------------------------------------------
+
+extern "C" PERFTOOLS_DLL_DECL const char* tc_version(
+    int* major, int* minor, const char** patch) PERFTOOLS_NOTHROW {
+  if (major) *major = TC_VERSION_MAJOR;
+  if (minor) *minor = TC_VERSION_MINOR;
+  if (patch) *patch = TC_VERSION_PATCH;
+  return TC_VERSION_STRING;
+}
+
+// This function behaves similarly to MSVC's _set_new_mode.
+// If flag is 0 (default), calls to malloc will behave normally.
+// If flag is 1, calls to malloc will behave like calls to new,
+// and the std_new_handler will be invoked on failure.
+// Returns the previous mode.
+extern "C" PERFTOOLS_DLL_DECL int tc_set_new_mode(int flag) PERFTOOLS_NOTHROW {
+  int old_mode = tc_new_mode;
+  tc_new_mode = flag;
+  return old_mode;
+}
+
+extern "C" PERFTOOLS_DLL_DECL int tc_query_new_mode() PERFTOOLS_NOTHROW {
+  return tc_new_mode;
+}
+
+#ifndef TCMALLOC_USING_DEBUGALLOCATION  // debugallocation.cc defines its own
+
+// CAVEAT: The code structure below ensures that MallocHook methods are always
+//         called from the stack frame of the invoked allocation function.
+//         heap-checker.cc depends on this to start a stack trace from
+//         the call to the (de)allocation function.
+
+namespace tcmalloc {
+
+
+static ATTRIBUTE_SECTION(google_malloc)
+void invoke_hooks_and_free(void *ptr) {
+  MallocHook::InvokeDeleteHook(ptr);
+  do_free(ptr);
+}
+
+ATTRIBUTE_SECTION(google_malloc)
+void* cpp_throw_oom(size_t size) {
+  return handle_oom(retry_malloc, reinterpret_cast(size),
+                    true, false);
+}
+
+ATTRIBUTE_SECTION(google_malloc)
+void* cpp_nothrow_oom(size_t size) {
+  return handle_oom(retry_malloc, reinterpret_cast(size),
+                    true, true);
+}
+
+ATTRIBUTE_SECTION(google_malloc)
+void* malloc_oom(size_t size) {
+  return handle_oom(retry_malloc, reinterpret_cast(size),
+                    false, true);
+}
+
+// tcmalloc::allocate_full_XXX is called by fast-path malloc when some
+// complex handling is needed (such as fetching object from central
+// freelist or malloc sampling). It contains all 'operator new' logic,
+// as opposed to malloc_fast_path which only deals with important
+// subset of cases.
+//
+// Note that this is under tcmalloc namespace so that pprof
+// can automatically filter it out of growthz/heapz profiles.
+//
+// We have slightly fancy setup because we need to call hooks from
+// function in 'google_malloc' section and we cannot place template
+// into this section. Thus 3 separate functions 'built' by macros.
+//
+// Also note that we're carefully orchestrating for
+// MallocHook::GetCallerStackTrace to work even if compiler isn't
+// optimizing tail calls (e.g. -O0 is given). We still require
+// ATTRIBUTE_ALWAYS_INLINE to work for that case, but it was seen to
+// work for -O0 -fno-inline across both GCC and clang. I.e. in this
+// case we'll get stack frame for tc_new, followed by stack frame for
+// allocate_full_cpp_throw_oom, followed by hooks machinery and user
+// code's stack frames. So GetCallerStackTrace will find 2
+// subsequent stack frames in google_malloc section and correctly
+// 'cut' stack trace just before tc_new.
+template 
+ATTRIBUTE_ALWAYS_INLINE inline
+static void* do_allocate_full(size_t size) {
+  void* p = do_malloc(size);
+  if (PREDICT_FALSE(p == NULL)) {
+    p = OOMHandler(size);
+  }
+  MallocHook::InvokeNewHook(p, size);
+  return CheckedMallocResult(p);
+}
+
+#define AF(oom) \
+  ATTRIBUTE_SECTION(google_malloc)   \
+  void* allocate_full_##oom(size_t size) {   \
+    return do_allocate_full(size);     \
+  }
+
+AF(cpp_throw_oom)
+AF(cpp_nothrow_oom)
+AF(malloc_oom)
+
+#undef AF
+
+template 
+static ATTRIBUTE_ALWAYS_INLINE inline void* dispatch_allocate_full(size_t size) {
+  if (OOMHandler == cpp_throw_oom) {
+    return allocate_full_cpp_throw_oom(size);
+  }
+  if (OOMHandler == cpp_nothrow_oom) {
+    return allocate_full_cpp_nothrow_oom(size);
+  }
+  ASSERT(OOMHandler == malloc_oom);
+  return allocate_full_malloc_oom(size);
+}
+
+struct retry_memalign_data {
+  size_t align;
+  size_t size;
+};
+
+static void *retry_do_memalign(void *arg) {
+  retry_memalign_data *data = static_cast(arg);
+  return do_memalign_pages(data->align, data->size);
+}
+
+static ATTRIBUTE_SECTION(google_malloc)
+void* memalign_pages(size_t align, size_t size,
+                     bool from_operator, bool nothrow) {
+  void *rv = do_memalign_pages(align, size);
+  if (PREDICT_FALSE(rv == NULL)) {
+    retry_memalign_data data;
+    data.align = align;
+    data.size = size;
+    rv = handle_oom(retry_do_memalign, &data,
+                    from_operator, nothrow);
+  }
+  MallocHook::InvokeNewHook(rv, size);
+  return CheckedMallocResult(rv);
+}
+
+} // namespace tcmalloc
+
+// This is quick, fast-path-only implementation of malloc/new. It is
+// designed to only have support for fast-path. It checks if more
+// complex handling is needed (such as a pageheap allocation or
+// sampling) and only performs allocation if none of those uncommon
+// conditions hold. When we have one of those odd cases it simply
+// tail-calls to one of tcmalloc::allocate_full_XXX defined above.
+//
+// Such approach was found to be quite effective. Generated code for
+// tc_{new,malloc} either succeeds quickly or tail-calls to
+// allocate_full. Terseness of the source and lack of
+// non-tail calls enables compiler to produce better code. Also
+// produced code is short enough to enable effort-less human
+// comprehension. Which itself led to elimination of various checks
+// that were not necessary for fast-path.
+template 
+ATTRIBUTE_ALWAYS_INLINE inline
+static void * malloc_fast_path(size_t size) {
+  if (PREDICT_FALSE(!base::internal::new_hooks_.empty())) {
+    return tcmalloc::dispatch_allocate_full(size);
+  }
+
+  ThreadCache *cache = ThreadCache::GetFastPathCache();
+
+  if (PREDICT_FALSE(cache == NULL)) {
+    return tcmalloc::dispatch_allocate_full(size);
+  }
+
+  uint32 cl;
+  if (PREDICT_FALSE(!Static::sizemap()->GetSizeClass(size, &cl))) {
+    return tcmalloc::dispatch_allocate_full(size);
+  }
+
+  size_t allocated_size = Static::sizemap()->ByteSizeForClass(cl);
+
+  if (PREDICT_FALSE(!cache->TryRecordAllocationFast(allocated_size))) {
+    return tcmalloc::dispatch_allocate_full(size);
+  }
+
+  return CheckedMallocResult(cache->Allocate(allocated_size, cl, OOMHandler));
+}
+
+template 
+ATTRIBUTE_ALWAYS_INLINE inline
+static void* memalign_fast_path(size_t align, size_t size) {
+  if (PREDICT_FALSE(align > kPageSize)) {
+    if (OOMHandler == tcmalloc::cpp_throw_oom) {
+      return tcmalloc::memalign_pages(align, size, true, false);
+    } else if (OOMHandler == tcmalloc::cpp_nothrow_oom) {
+      return tcmalloc::memalign_pages(align, size, true, true);
+    } else {
+      ASSERT(OOMHandler == tcmalloc::malloc_oom);
+      return tcmalloc::memalign_pages(align, size, false, true);
+    }
+  }
+
+  // Everything with alignment <= kPageSize we can easily delegate to
+  // regular malloc
+
+  return malloc_fast_path(align_size_up(size, align));
+}
+
+extern "C" PERFTOOLS_DLL_DECL CACHELINE_ALIGNED_FN
+void* tc_malloc(size_t size) PERFTOOLS_NOTHROW {
+  return malloc_fast_path(size);
+}
+
+static ATTRIBUTE_ALWAYS_INLINE inline
+void free_fast_path(void *ptr) {
+  if (PREDICT_FALSE(!base::internal::delete_hooks_.empty())) {
+    tcmalloc::invoke_hooks_and_free(ptr);
+    return;
+  }
+  do_free(ptr);
+}
+
+extern "C" PERFTOOLS_DLL_DECL CACHELINE_ALIGNED_FN
+void tc_free(void* ptr) PERFTOOLS_NOTHROW {
+  free_fast_path(ptr);
+}
+
+extern "C" PERFTOOLS_DLL_DECL CACHELINE_ALIGNED_FN
+void tc_free_sized(void *ptr, size_t size) PERFTOOLS_NOTHROW {
+  if (PREDICT_FALSE(!base::internal::delete_hooks_.empty())) {
+    tcmalloc::invoke_hooks_and_free(ptr);
+    return;
+  }
+#ifndef NO_TCMALLOC_SAMPLES
+  // if ptr is kPageSize-aligned, then it could be sampled allocation,
+  // thus we don't trust hint and just do plain free. It also handles
+  // nullptr for us.
+  if (PREDICT_FALSE((reinterpret_cast(ptr) & (kPageSize-1)) == 0)) {
+    tc_free(ptr);
+    return;
+  }
+#else
+  if (!ptr) {
+    return;
+  }
+#endif
+  do_free_with_callback(ptr, &InvalidFree, true, size);
+}
+
+#ifdef TC_ALIAS
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_sized(void *p, size_t size) PERFTOOLS_NOTHROW
+  TC_ALIAS(tc_free_sized);
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_sized(void *p, size_t size) PERFTOOLS_NOTHROW
+  TC_ALIAS(tc_free_sized);
+
+#else
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_sized(void *p, size_t size) PERFTOOLS_NOTHROW {
+  tc_free_sized(p, size);
+}
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_sized(void *p, size_t size) PERFTOOLS_NOTHROW {
+  tc_free_sized(p, size);
+}
+
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_calloc(size_t n,
+                                              size_t elem_size) PERFTOOLS_NOTHROW {
+  if (ThreadCache::IsUseEmergencyMalloc()) {
+    return tcmalloc::EmergencyCalloc(n, elem_size);
+  }
+  void* result = do_calloc(n, elem_size);
+  MallocHook::InvokeNewHook(result, n * elem_size);
+  return result;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_free);
+#else
+{
+  free_fast_path(ptr);
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_realloc(void* old_ptr,
+                                               size_t new_size) PERFTOOLS_NOTHROW {
+  if (old_ptr == NULL) {
+    void* result = do_malloc_or_cpp_alloc(new_size);
+    MallocHook::InvokeNewHook(result, new_size);
+    return result;
+  }
+  if (new_size == 0) {
+    MallocHook::InvokeDeleteHook(old_ptr);
+    do_free(old_ptr);
+    return NULL;
+  }
+  if (PREDICT_FALSE(tcmalloc::IsEmergencyPtr(old_ptr))) {
+    return tcmalloc::EmergencyRealloc(old_ptr, new_size);
+  }
+  return do_realloc(old_ptr, new_size);
+}
+
+extern "C" PERFTOOLS_DLL_DECL CACHELINE_ALIGNED_FN
+void* tc_new(size_t size) {
+  return malloc_fast_path(size);
+}
+
+extern "C" PERFTOOLS_DLL_DECL CACHELINE_ALIGNED_FN
+void* tc_new_nothrow(size_t size, const std::nothrow_t&) PERFTOOLS_NOTHROW {
+  return malloc_fast_path(size);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete(void* p) PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_free);
+#else
+{
+  free_fast_path(p);
+}
+#endif
+
+// Standard C++ library implementations define and use this
+// (via ::operator delete(ptr, nothrow)).
+// But it's really the same as normal delete, so we just do the same thing.
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p, const std::nothrow_t&) PERFTOOLS_NOTHROW
+{
+  if (PREDICT_FALSE(!base::internal::delete_hooks_.empty())) {
+    tcmalloc::invoke_hooks_and_free(p);
+    return;
+  }
+  do_free(p);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_newarray(size_t size)
+#ifdef TC_ALIAS
+TC_ALIAS(tc_new);
+#else
+{
+  return malloc_fast_path(size);
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size, const std::nothrow_t&)
+    PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_new_nothrow);
+#else
+{
+  return malloc_fast_path(size);
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray(void* p) PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_free);
+#else
+{
+  free_fast_path(p);
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p, const std::nothrow_t&) PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_delete_nothrow);
+#else
+{
+  free_fast_path(p);
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL CACHELINE_ALIGNED_FN
+void* tc_memalign(size_t align, size_t size) PERFTOOLS_NOTHROW {
+  return memalign_fast_path(align, size);
+}
+
+extern "C" PERFTOOLS_DLL_DECL int tc_posix_memalign(
+    void** result_ptr, size_t align, size_t size) PERFTOOLS_NOTHROW {
+  if (((align % sizeof(void*)) != 0) ||
+      ((align & (align - 1)) != 0) ||
+      (align == 0)) {
+    return EINVAL;
+  }
+
+  void* result = tc_memalign(align, size);
+  if (PREDICT_FALSE(result == NULL)) {
+    return ENOMEM;
+  } else {
+    *result_ptr = result;
+    return 0;
+  }
+}
+
+#if defined(ENABLE_ALIGNED_NEW_DELETE)
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_new_aligned(size_t size, std::align_val_t align) {
+  return memalign_fast_path(static_cast(align), size);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_new_aligned_nothrow(size_t size, std::align_val_t align, const std::nothrow_t&) PERFTOOLS_NOTHROW {
+  return memalign_fast_path(static_cast(align), size);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_aligned(void* p, std::align_val_t) PERFTOOLS_NOTHROW
+{
+  free_fast_path(p);
+}
+
+// There is no easy way to obtain the actual size used by do_memalign to allocate aligned storage, so for now
+// just ignore the size. It might get useful in the future.
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_sized_aligned(void* p, size_t size, std::align_val_t align) PERFTOOLS_NOTHROW
+{
+  free_fast_path(p);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_delete_aligned_nothrow(void* p, std::align_val_t, const std::nothrow_t&) PERFTOOLS_NOTHROW
+{
+  free_fast_path(p);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_newarray_aligned(size_t size, std::align_val_t align)
+#ifdef TC_ALIAS
+TC_ALIAS(tc_new_aligned);
+#else
+{
+  return memalign_fast_path(static_cast(align), size);
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_newarray_aligned_nothrow(size_t size, std::align_val_t align, const std::nothrow_t& nt) PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_new_aligned_nothrow);
+#else
+{
+  return memalign_fast_path(static_cast(align), size);
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_aligned(void* p, std::align_val_t) PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_delete_aligned);
+#else
+{
+  free_fast_path(p);
+}
+#endif
+
+// There is no easy way to obtain the actual size used by do_memalign to allocate aligned storage, so for now
+// just ignore the size. It might get useful in the future.
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_sized_aligned(void* p, size_t size, std::align_val_t align) PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_delete_sized_aligned);
+#else
+{
+  free_fast_path(p);
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_aligned_nothrow(void* p, std::align_val_t, const std::nothrow_t&) PERFTOOLS_NOTHROW
+#ifdef TC_ALIAS
+TC_ALIAS(tc_delete_aligned_nothrow);
+#else
+{
+  free_fast_path(p);
+}
+#endif
+
+#endif // defined(ENABLE_ALIGNED_NEW_DELETE)
+
+static size_t pagesize = 0;
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_valloc(size_t size) PERFTOOLS_NOTHROW {
+  // Allocate page-aligned object of length >= size bytes
+  if (pagesize == 0) pagesize = getpagesize();
+  return tc_memalign(pagesize, size);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t size) PERFTOOLS_NOTHROW {
+  // Round up size to a multiple of pagesize
+  if (pagesize == 0) pagesize = getpagesize();
+  if (size == 0) {     // pvalloc(0) should allocate one page, according to
+    size = pagesize;   // http://man.free4web.biz/man3/libmpatrol.3.html
+  }
+  size = (size + pagesize - 1) & ~(pagesize - 1);
+  return tc_memalign(pagesize, size);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void tc_malloc_stats(void) PERFTOOLS_NOTHROW {
+  do_malloc_stats();
+}
+
+extern "C" PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) PERFTOOLS_NOTHROW {
+  return do_mallopt(cmd, value);
+}
+
+#ifdef HAVE_STRUCT_MALLINFO
+extern "C" PERFTOOLS_DLL_DECL struct mallinfo tc_mallinfo(void) PERFTOOLS_NOTHROW {
+  return do_mallinfo();
+}
+#endif
+
+extern "C" PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) PERFTOOLS_NOTHROW {
+  return MallocExtension::instance()->GetAllocatedSize(ptr);
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size)  PERFTOOLS_NOTHROW {
+  void* result = do_malloc(size);
+  MallocHook::InvokeNewHook(result, size);
+  return result;
+}
+
+#endif  // TCMALLOC_USING_DEBUGALLOCATION
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tcmalloc.h b/trunk/3rdparty/gperftools-2-fit/src/tcmalloc.h
new file mode 100644
index 000000000..016c805d1
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tcmalloc.h
@@ -0,0 +1,70 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein 
+//
+// Some obscure memory-allocation routines may not be declared on all
+// systems.  In those cases, we'll just declare them ourselves.
+// This file is meant to be used only internally, for unittests.
+
+#include 
+
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 600  // for posix_memalign
+#endif
+#include          // for posix_memalign
+// FreeBSD has malloc.h, but complains if you use it
+#if defined(HAVE_MALLOC_H) && !defined(__FreeBSD__)
+#include          // for memalign, valloc, pvalloc
+#endif
+
+// __THROW is defined in glibc systems.  It means, counter-intuitively,
+// "This function will never throw an exception."  It's an optional
+// optimization tool, but we may need to use it to match glibc prototypes.
+#ifndef __THROW    // I guess we're not on a glibc system
+# define __THROW   // __THROW is just an optimization, so ok to make it ""
+#endif
+
+#if !HAVE_DECL_CFREE
+extern "C" void cfree(void* ptr) __THROW;
+#endif
+#if !HAVE_DECL_POSIX_MEMALIGN
+extern "C" int posix_memalign(void** ptr, size_t align, size_t size) __THROW;
+#endif
+#if !HAVE_DECL_MEMALIGN
+extern "C" void* memalign(size_t __alignment, size_t __size) __THROW;
+#endif
+#if !HAVE_DECL_VALLOC
+extern "C" void* valloc(size_t __size) __THROW;
+#endif
+#if !HAVE_DECL_PVALLOC
+extern "C" void* pvalloc(size_t __size) __THROW;
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tcmalloc_guard.h b/trunk/3rdparty/gperftools-2-fit/src/tcmalloc_guard.h
new file mode 100644
index 000000000..84952bac2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tcmalloc_guard.h
@@ -0,0 +1,49 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// We expose the TCMallocGuard class -- which initializes the tcmalloc
+// allocator -- so classes that need to be sure tcmalloc is loaded
+// before they do stuff -- notably heap-profiler -- can.  To use this
+// create a static TCMallocGuard instance at the top of a file where
+// you need tcmalloc to be initialized before global constructors run.
+
+#ifndef TCMALLOC_TCMALLOC_GUARD_H_
+#define TCMALLOC_TCMALLOC_GUARD_H_
+
+class TCMallocGuard {
+ public:
+  TCMallocGuard();
+  ~TCMallocGuard();
+};
+
+#endif  // TCMALLOC_TCMALLOC_GUARD_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/addressmap_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/addressmap_unittest.cc
new file mode 100644
index 000000000..45781f3a3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/addressmap_unittest.cc
@@ -0,0 +1,174 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+
+#include    // for rand()
+#include 
+#include 
+#include 
+#include 
+#include 
+#include "addressmap-inl.h"
+#include "base/logging.h"
+#include "base/commandlineflags.h"
+
+DEFINE_int32(iters, 20, "Number of test iterations");
+DEFINE_int32(N, 100000,  "Number of elements to test per iteration");
+
+using std::pair;
+using std::make_pair;
+using std::vector;
+using std::set;
+using std::shuffle;
+
+struct UniformRandomNumberGenerator {
+  size_t Uniform(size_t max_size) {
+    if (max_size == 0)
+      return 0;
+    return rand() % max_size;   // not a great random-number fn, but portable
+  }
+};
+static UniformRandomNumberGenerator rnd;
+
+
+// pair of associated value and object size
+typedef pair ValueT;
+
+struct PtrAndSize {
+  char* ptr;
+  size_t size;
+  PtrAndSize(char* p, size_t s) : ptr(p), size(s) {}
+};
+
+size_t SizeFunc(const ValueT& v) { return v.second; }
+
+static void SetCheckCallback(const void* ptr, ValueT* val,
+                             set >* check_set) {
+  check_set->insert(make_pair(ptr, val->first));
+}
+
+int main(int argc, char** argv) {
+  // Get a bunch of pointers
+  const int N = FLAGS_N;
+  static const int kMaxRealSize = 49;
+  // 100Mb to stress not finding previous object (AddressMap's cluster is 1Mb):
+  static const size_t kMaxSize = 100*1000*1000;
+  vector ptrs_and_sizes;
+  for (int i = 0; i < N; ++i) {
+    size_t s = rnd.Uniform(kMaxRealSize);
+    ptrs_and_sizes.push_back(PtrAndSize(new char[s], s));
+  }
+
+  for (int x = 0; x < FLAGS_iters; ++x) {
+    RAW_LOG(INFO, "Iteration %d/%d...\n", x, FLAGS_iters);
+
+    // Permute pointers to get rid of allocation order issues
+    std::random_device rd;
+    std::mt19937 g(rd());
+    shuffle(ptrs_and_sizes.begin(), ptrs_and_sizes.end(), g);
+
+    AddressMap map(malloc, free);
+    const ValueT* result;
+    const void* res_p;
+
+    // Insert a bunch of entries
+    for (int i = 0; i < N; ++i) {
+      char* p = ptrs_and_sizes[i].ptr;
+      CHECK(!map.Find(p));
+      int offs = rnd.Uniform(ptrs_and_sizes[i].size);
+      CHECK(!map.FindInside(&SizeFunc, kMaxSize, p + offs, &res_p));
+      map.Insert(p, make_pair(i, ptrs_and_sizes[i].size));
+      CHECK(result = map.Find(p));
+      CHECK_EQ(result->first, i);
+      CHECK(result = map.FindInside(&SizeFunc, kMaxRealSize, p + offs, &res_p));
+      CHECK_EQ(res_p, p);
+      CHECK_EQ(result->first, i);
+      map.Insert(p, make_pair(i + N, ptrs_and_sizes[i].size));
+      CHECK(result = map.Find(p));
+      CHECK_EQ(result->first, i + N);
+    }
+
+    // Delete the even entries
+    for (int i = 0; i < N; i += 2) {
+      void* p = ptrs_and_sizes[i].ptr;
+      ValueT removed;
+      CHECK(map.FindAndRemove(p, &removed));
+      CHECK_EQ(removed.first, i + N);
+    }
+
+    // Lookup the odd entries and adjust them
+    for (int i = 1; i < N; i += 2) {
+      char* p = ptrs_and_sizes[i].ptr;
+      CHECK(result = map.Find(p));
+      CHECK_EQ(result->first, i + N);
+      int offs = rnd.Uniform(ptrs_and_sizes[i].size);
+      CHECK(result = map.FindInside(&SizeFunc, kMaxRealSize, p + offs, &res_p));
+      CHECK_EQ(res_p, p);
+      CHECK_EQ(result->first, i + N);
+      map.Insert(p, make_pair(i + 2*N, ptrs_and_sizes[i].size));
+      CHECK(result = map.Find(p));
+      CHECK_EQ(result->first, i + 2*N);
+    }
+
+    // Insert even entries back
+    for (int i = 0; i < N; i += 2) {
+      char* p = ptrs_and_sizes[i].ptr;
+      int offs = rnd.Uniform(ptrs_and_sizes[i].size);
+      CHECK(!map.FindInside(&SizeFunc, kMaxSize, p + offs, &res_p));
+      map.Insert(p, make_pair(i + 2*N, ptrs_and_sizes[i].size));
+      CHECK(result = map.Find(p));
+      CHECK_EQ(result->first, i + 2*N);
+      CHECK(result = map.FindInside(&SizeFunc, kMaxRealSize, p + offs, &res_p));
+      CHECK_EQ(res_p, p);
+      CHECK_EQ(result->first, i + 2*N);
+    }
+
+    // Check all entries
+    set > check_set;
+    map.Iterate(SetCheckCallback, &check_set);
+    CHECK_EQ(check_set.size(), N);
+    for (int i = 0; i < N; ++i) {
+      void* p = ptrs_and_sizes[i].ptr;
+      check_set.erase(make_pair(p, i + 2*N));
+      CHECK(result = map.Find(p));
+      CHECK_EQ(result->first, i + 2*N);
+    }
+    CHECK_EQ(check_set.size(), 0);
+  }
+
+  for (int i = 0; i < N; ++i) {
+    delete[] ptrs_and_sizes[i].ptr;
+  }
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/atomicops_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/atomicops_unittest.cc
new file mode 100644
index 000000000..22be83958
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/atomicops_unittest.cc
@@ -0,0 +1,152 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat
+ */
+
+#include 
+#include "base/logging.h"
+#include "base/atomicops.h"
+
+#define GG_ULONGLONG(x)  static_cast(x)
+
+
+#define NUM_BITS(T) (sizeof(T) * 8)
+
+
+template 
+static void TestCompareAndSwap(AtomicType (*compare_and_swap_func)
+                               (volatile AtomicType*, AtomicType, AtomicType)) {
+  AtomicType value = 0;
+  AtomicType prev = (*compare_and_swap_func)(&value, 0, 1);
+  ASSERT_EQ(1, value);
+  ASSERT_EQ(0, prev);
+
+  // Use test value that has non-zero bits in both halves, more for testing
+  // 64-bit implementation on 32-bit platforms.
+  const AtomicType k_test_val = (GG_ULONGLONG(1) <<
+                                 (NUM_BITS(AtomicType) - 2)) + 11;
+  value = k_test_val;
+  prev = (*compare_and_swap_func)(&value, 0, 5);
+  ASSERT_EQ(k_test_val, value);
+  ASSERT_EQ(k_test_val, prev);
+
+  value = k_test_val;
+  prev = (*compare_and_swap_func)(&value, k_test_val, 5);
+  ASSERT_EQ(5, value);
+  ASSERT_EQ(k_test_val, prev);
+}
+
+
+template 
+static void TestAtomicExchange(AtomicType (*atomic_exchange_func)
+                               (volatile AtomicType*, AtomicType)) {
+  AtomicType value = 0;
+  AtomicType new_value = (*atomic_exchange_func)(&value, 1);
+  ASSERT_EQ(1, value);
+  ASSERT_EQ(0, new_value);
+
+  // Use test value that has non-zero bits in both halves, more for testing
+  // 64-bit implementation on 32-bit platforms.
+  const AtomicType k_test_val = (GG_ULONGLONG(1) <<
+                                 (NUM_BITS(AtomicType) - 2)) + 11;
+  value = k_test_val;
+  new_value = (*atomic_exchange_func)(&value, k_test_val);
+  ASSERT_EQ(k_test_val, value);
+  ASSERT_EQ(k_test_val, new_value);
+
+  value = k_test_val;
+  new_value = (*atomic_exchange_func)(&value, 5);
+  ASSERT_EQ(5, value);
+  ASSERT_EQ(k_test_val, new_value);
+}
+
+
+// This is a simple sanity check that values are correct. Not testing
+// atomicity
+template 
+static void TestStore() {
+  const AtomicType kVal1 = static_cast(0xa5a5a5a5a5a5a5a5LL);
+  const AtomicType kVal2 = static_cast(-1);
+
+  AtomicType value;
+
+  base::subtle::NoBarrier_Store(&value, kVal1);
+  ASSERT_EQ(kVal1, value);
+  base::subtle::NoBarrier_Store(&value, kVal2);
+  ASSERT_EQ(kVal2, value);
+
+  base::subtle::Release_Store(&value, kVal1);
+  ASSERT_EQ(kVal1, value);
+  base::subtle::Release_Store(&value, kVal2);
+  ASSERT_EQ(kVal2, value);
+}
+
+// This is a simple sanity check that values are correct. Not testing
+// atomicity
+template 
+static void TestLoad() {
+  const AtomicType kVal1 = static_cast(0xa5a5a5a5a5a5a5a5LL);
+  const AtomicType kVal2 = static_cast(-1);
+
+  AtomicType value;
+
+  value = kVal1;
+  ASSERT_EQ(kVal1, base::subtle::NoBarrier_Load(&value));
+  value = kVal2;
+  ASSERT_EQ(kVal2, base::subtle::NoBarrier_Load(&value));
+
+  value = kVal1;
+  ASSERT_EQ(kVal1, base::subtle::Acquire_Load(&value));
+  value = kVal2;
+  ASSERT_EQ(kVal2, base::subtle::Acquire_Load(&value));
+}
+
+template 
+static void TestAtomicOps() {
+  TestCompareAndSwap(base::subtle::NoBarrier_CompareAndSwap);
+  TestCompareAndSwap(base::subtle::Acquire_CompareAndSwap);
+  TestCompareAndSwap(base::subtle::Release_CompareAndSwap);
+
+  TestAtomicExchange(base::subtle::NoBarrier_AtomicExchange);
+  TestAtomicExchange(base::subtle::Acquire_AtomicExchange);
+  TestAtomicExchange(base::subtle::Release_AtomicExchange);
+
+  TestStore();
+  TestLoad();
+}
+
+int main(int argc, char** argv) {
+  TestAtomicOps();
+  TestAtomicOps();
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/current_allocated_bytes_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/current_allocated_bytes_test.cc
new file mode 100644
index 000000000..49b7dc34b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/current_allocated_bytes_test.cc
@@ -0,0 +1,64 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// ---
+//
+// Author: Craig Silverstein
+
+// This tests the accounting done by tcmalloc.  When we allocate and
+// free a small buffer, the number of bytes used by the application
+// before the alloc+free should match the number of bytes used after.
+// However, the internal data structures used by tcmalloc will be
+// quite different -- new spans will have been allocated, etc.  This
+// is, thus, a simple test that we account properly for the internal
+// data structures, so that we report the actual application-used
+// bytes properly.
+
+#include "config_for_unittests.h"
+#include 
+#include 
+#include 
+#include "base/logging.h"
+
+int main() {
+  // We don't do accounting right when using debugallocation.cc, so
+  // turn off the test then.  TODO(csilvers): get this working too.
+#ifdef NDEBUG
+  static const char kCurrent[] = "generic.current_allocated_bytes";
+
+  size_t before_bytes, after_bytes;
+  MallocExtension::instance()->GetNumericProperty(kCurrent, &before_bytes);
+  free(malloc(200));
+  MallocExtension::instance()->GetNumericProperty(kCurrent, &after_bytes);
+
+  CHECK_EQ(before_bytes, after_bytes);
+#endif
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/debugallocation_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/debugallocation_test.cc
new file mode 100644
index 000000000..1e45db6ad
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/debugallocation_test.cc
@@ -0,0 +1,333 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Fred Akalin
+
+#include 
+#include 
+#include  // for memcmp
+#include 
+#include "gperftools/malloc_extension.h"
+#include "gperftools/tcmalloc.h"
+#include "base/logging.h"
+#include "tests/testutil.h"
+
+using std::vector;
+
+vector g_testlist;  // the tests to run
+
+#define TEST(a, b)                                      \
+  struct Test_##a##_##b {                               \
+    Test_##a##_##b() { g_testlist.push_back(&Run); }    \
+    static void Run();                                  \
+  };                                                    \
+  static Test_##a##_##b g_test_##a##_##b;               \
+  void Test_##a##_##b::Run()
+
+
+static int RUN_ALL_TESTS() {
+  vector::const_iterator it;
+  for (it = g_testlist.begin(); it != g_testlist.end(); ++it) {
+    (*it)();   // The test will error-exit if there's a problem.
+  }
+  fprintf(stderr, "\nPassed %d tests\n\nPASS\n",
+          static_cast(g_testlist.size()));
+  return 0;
+}
+
+// The death tests are meant to be run from a shell-script driver, which
+// passes in an integer saying which death test to run.  We store that
+// test-to-run here, and in the macro use a counter to see when we get
+// to that test, so we can run it.
+static int test_to_run = 0;     // set in main() based on argv
+static int test_counter = 0;    // incremented every time the macro is called
+#define IF_DEBUG_EXPECT_DEATH(statement, regex) do {    \
+  if (test_counter++ == test_to_run) {                  \
+    fprintf(stderr, "Expected regex:%s\n", regex);      \
+    statement;                                          \
+  }                                                     \
+} while (false)
+
+// This flag won't be compiled in in opt mode.
+DECLARE_int32(max_free_queue_size);
+
+// Test match as well as mismatch rules.  But do not test on OS X; on
+// OS X the OS converts new/new[] to malloc before it gets to us, so
+// we are unable to catch these mismatch errors.
+#ifndef __APPLE__
+TEST(DebugAllocationTest, DeallocMismatch) {
+  // malloc can be matched only by free
+  // new can be matched only by delete and delete(nothrow)
+  // new[] can be matched only by delete[] and delete[](nothrow)
+  // new(nothrow) can be matched only by delete and delete(nothrow)
+  // new(nothrow)[] can be matched only by delete[] and delete[](nothrow)
+
+  // Allocate with malloc.
+  {
+    int* x = static_cast(noopt(malloc(sizeof(*x))));
+    IF_DEBUG_EXPECT_DEATH(delete x, "mismatch.*being dealloc.*delete");
+    IF_DEBUG_EXPECT_DEATH(delete [] x, "mismatch.*being dealloc.*delete *[[]");
+    // Should work fine.
+    free(x);
+  }
+
+  // Allocate with new.
+  {
+    int* x = noopt(new int);
+    int* y = noopt(new int);
+    IF_DEBUG_EXPECT_DEATH(free(x), "mismatch.*being dealloc.*free");
+    IF_DEBUG_EXPECT_DEATH(delete [] x, "mismatch.*being dealloc.*delete *[[]");
+    delete x;
+    ::operator delete(y, std::nothrow);
+  }
+
+  // Allocate with new[].
+  {
+    int* x = noopt(new int[1]);
+    int* y = noopt(new int[1]);
+    IF_DEBUG_EXPECT_DEATH(free(x), "mismatch.*being dealloc.*free");
+    IF_DEBUG_EXPECT_DEATH(delete x, "mismatch.*being dealloc.*delete");
+    delete [] x;
+    ::operator delete[](y, std::nothrow);
+  }
+
+  // Allocate with new(nothrow).
+  {
+    int* x = noopt(new (std::nothrow) int);
+    int* y = noopt(new (std::nothrow) int);
+    IF_DEBUG_EXPECT_DEATH(free(x), "mismatch.*being dealloc.*free");
+    IF_DEBUG_EXPECT_DEATH(delete [] x, "mismatch.*being dealloc.*delete *[[]");
+    delete x;
+    ::operator delete(y, std::nothrow);
+  }
+
+  // Allocate with new(nothrow)[].
+  {
+    int* x = noopt(new (std::nothrow) int[1]);
+    int* y = noopt(new (std::nothrow) int[1]);
+    IF_DEBUG_EXPECT_DEATH(free(x), "mismatch.*being dealloc.*free");
+    IF_DEBUG_EXPECT_DEATH(delete x, "mismatch.*being dealloc.*delete");
+    delete [] x;
+    ::operator delete[](y, std::nothrow);
+  }
+}
+#endif  // #ifdef OS_MACOSX
+
+TEST(DebugAllocationTest, DoubleFree) {
+  int* pint = noopt(new int);
+  delete pint;
+  IF_DEBUG_EXPECT_DEATH(delete pint, "has been already deallocated");
+}
+
+TEST(DebugAllocationTest, StompBefore) {
+  int* pint = noopt(new int);
+#ifndef NDEBUG   // don't stomp memory if we're not in a position to detect it
+  pint[-1] = 5;
+  IF_DEBUG_EXPECT_DEATH(delete pint, "a word before object");
+#endif
+}
+
+TEST(DebugAllocationTest, StompAfter) {
+  int* pint = noopt(new int);
+#ifndef NDEBUG   // don't stomp memory if we're not in a position to detect it
+  pint[1] = 5;
+  IF_DEBUG_EXPECT_DEATH(delete pint, "a word after object");
+#endif
+}
+
+TEST(DebugAllocationTest, FreeQueueTest) {
+  // Verify that the allocator doesn't return blocks that were recently freed.
+  int* x = noopt(new int);
+  int* old_x = x;
+  delete x;
+  x = noopt(new int);
+  #if 1
+    // This check should not be read as a universal guarantee of behavior.  If
+    // other threads are executing, it would be theoretically possible for this
+    // check to fail despite the efforts of debugallocation.cc to the contrary.
+    // It should always hold under the controlled conditions of this unittest,
+    // however.
+    EXPECT_NE(x, old_x);  // Allocator shouldn't return recently freed blocks
+  #else
+    // The below check passes, but since it isn't *required* to pass, I've left
+    // it commented out.
+    // EXPECT_EQ(x, old_x);
+  #endif
+  old_x = NULL;  // avoid breaking opt build with an unused variable warning.
+  delete x;
+}
+
+TEST(DebugAllocationTest, DanglingPointerWriteTest) {
+  // This test can only be run if debugging.
+  //
+  // If not debugging, the 'new' following the dangling write might not be
+  // safe.  When debugging, we expect the (trashed) deleted block to be on the
+  // list of recently-freed blocks, so the following 'new' will be safe.
+#if 1
+  int* x = noopt(new int);
+  delete x;
+  int poisoned_x_value = *x;
+  *x = 1;  // a dangling write.
+
+  char* s = noopt(new char[FLAGS_max_free_queue_size]);
+  // When we delete s, we push the storage that was previously allocated to x
+  // off the end of the free queue.  At that point, the write to that memory
+  // will be detected.
+  IF_DEBUG_EXPECT_DEATH(delete [] s, "Memory was written to after being freed.");
+
+  // restore the poisoned value of x so that we can delete s without causing a
+  // crash.
+  *x = poisoned_x_value;
+  delete [] s;
+#endif
+}
+
+TEST(DebugAllocationTest, DanglingWriteAtExitTest) {
+  int *x = noopt(new int);
+  delete x;
+  int old_x_value = *x;
+  *x = 1;
+  // verify that dangling writes are caught at program termination if the
+  // corrupted block never got pushed off of the end of the free queue.
+  IF_DEBUG_EXPECT_DEATH(exit(0), "Memory was written to after being freed.");
+  *x = old_x_value;  // restore x so that the test can exit successfully.
+}
+
+TEST(DebugAllocationTest, StackTraceWithDanglingWriteAtExitTest) {
+  int *x = noopt(new int);
+  delete x;
+  int old_x_value = *x;
+  *x = 1;
+  // verify that we also get a stack trace when we have a dangling write.
+  // The " @ " is part of the stack trace output.
+  IF_DEBUG_EXPECT_DEATH(exit(0), " @ .*main");
+  *x = old_x_value;  // restore x so that the test can exit successfully.
+}
+
+static size_t CurrentlyAllocatedBytes() {
+  size_t value;
+  CHECK(MallocExtension::instance()->GetNumericProperty(
+            "generic.current_allocated_bytes", &value));
+  return value;
+}
+
+TEST(DebugAllocationTest, CurrentlyAllocated) {
+  // Clear the free queue
+#if 1
+  FLAGS_max_free_queue_size = 0;
+  // Force a round-trip through the queue management code so that the
+  // new size is seen and the queue of recently-freed blocks is flushed.
+  free(noopt(malloc(1)));
+  FLAGS_max_free_queue_size = 1048576;
+#endif
+
+  // Free something and check that it disappears from allocated bytes
+  // immediately.
+  char* p = noopt(new char[1000]);
+  size_t after_malloc = CurrentlyAllocatedBytes();
+  delete[] p;
+  size_t after_free = CurrentlyAllocatedBytes();
+  EXPECT_LE(after_free, after_malloc - 1000);
+}
+
+TEST(DebugAllocationTest, GetAllocatedSizeTest) {
+#if 1
+  // When debug_allocation is in effect, GetAllocatedSize should return
+  // exactly requested size, since debug_allocation doesn't allow users
+  // to write more than that.
+  for (int i = 0; i < 10; ++i) {
+    void *p = noopt(malloc(i));
+    EXPECT_EQ(i, MallocExtension::instance()->GetAllocatedSize(p));
+    free(p);
+  }
+#endif
+  void* a = noopt(malloc(1000));
+  EXPECT_GE(MallocExtension::instance()->GetAllocatedSize(a), 1000);
+  // This is just a sanity check.  If we allocated too much, alloc is broken
+  EXPECT_LE(MallocExtension::instance()->GetAllocatedSize(a), 5000);
+  EXPECT_GE(MallocExtension::instance()->GetEstimatedAllocatedSize(1000), 1000);
+  free(a);
+}
+
+TEST(DebugAllocationTest, HugeAlloc) {
+  // This must not be a const variable so it doesn't form an
+  // integral-constant-expression which can be *statically* rejected by the
+  // compiler as too large for the allocation.
+  size_t kTooBig = ~static_cast(0);
+  void* a = NULL;
+
+#ifndef NDEBUG
+
+  a = noopt(malloc(noopt(kTooBig)));
+  EXPECT_EQ(NULL, a);
+
+  // kAlsoTooBig is small enough not to get caught by debugallocation's check,
+  // but will still fall through to tcmalloc's check. This must also be
+  // a non-const variable. See kTooBig for more details.
+  size_t kAlsoTooBig = kTooBig - 1024;
+
+  a = noopt(malloc(noopt(kAlsoTooBig)));
+  EXPECT_EQ(NULL, a);
+#endif
+}
+
+// based on test program contributed by mikesart@gmail.com aka
+// mikesart@valvesoftware.com. See issue-464.
+TEST(DebugAllocationTest, ReallocAfterMemalign) {
+  char stuff[50];
+  memset(stuff, 0x11, sizeof(stuff));
+  void *p = tc_memalign(16, sizeof(stuff));
+  EXPECT_NE(p, NULL);
+  memcpy(stuff, p, sizeof(stuff));
+
+  p = noopt(realloc(p, sizeof(stuff) + 10));
+  EXPECT_NE(p, NULL);
+
+  int rv = memcmp(stuff, p, sizeof(stuff));
+  EXPECT_EQ(rv, 0);
+}
+
+int main(int argc, char** argv) {
+  // If you run without args, we run the non-death parts of the test.
+  // Otherwise, argv[1] should be a number saying which death-test
+  // to run.  We will output a regexp we expect the death-message
+  // to include, and then run the given death test (which hopefully
+  // will produce that error message).  If argv[1] > the number of
+  // death tests, we will run only the non-death parts.  One way to
+  // tell when you are done with all tests is when no 'expected
+  // regexp' message is printed for a given argv[1].
+  if (argc < 2) {
+    test_to_run = -1;   // will never match
+  } else {
+    test_to_run = atoi(argv[1]);
+  }
+  return RUN_ALL_TESTS();
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/debugallocation_test.sh b/trunk/3rdparty/gperftools-2-fit/src/tests/debugallocation_test.sh
new file mode 100755
index 000000000..0f94ad084
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/debugallocation_test.sh
@@ -0,0 +1,98 @@
+#!/bin/sh
+
+# Copyright (c) 2009, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# ---
+# Author: Craig Silverstein
+
+BINDIR="${BINDIR:-.}"
+# We expect PPROF_PATH to be set in the environment.
+# If not, we set it to some reasonable value
+export PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}"
+
+if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then
+  echo "USAGE: $0 [unittest dir]"
+  echo "       By default, unittest_dir=$BINDIR"
+  exit 1
+fi
+
+DEBUGALLOCATION_TEST="${1:-$BINDIR/debugallocation_test}"
+
+num_failures=0
+
+# Run the i-th death test and make sure the test has the expected
+# regexp.  We can depend on the first line of the output being
+#    Expected regex:
+# Evaluates to "done" if we are not actually a death-test (so $1 is
+# too big a number, and we can stop).  Evaluates to "" otherwise.
+# Increments num_failures if the death test does not succeed.
+OneDeathTest() {
+  "$DEBUGALLOCATION_TEST" "$1" 2>&1 | {
+    regex_line='dummy'
+    # Normally the regex_line is the first line of output, but not
+    # always (if tcmalloc itself does any logging to stderr).
+    while test -n "$regex_line"; do
+      read regex_line
+      regex=`expr "$regex_line" : "Expected regex:\(.*\)"`
+      test -n "$regex" && break   # found the regex line
+    done
+    test -z "$regex" && echo "done" || grep "$regex" 2>&1
+  }
+}
+
+death_test_num=0   # which death test to run
+while :; do        # same as 'while true', but more portable
+  echo -n "Running death test $death_test_num..."
+  output="`OneDeathTest $death_test_num`"
+  case $output in
+     # Empty string means grep didn't find anything.
+     "")      echo "FAILED"; num_failures=`expr $num_failures + 1`;;
+     "done"*) echo "done with death tests"; break;;
+     # Any other string means grep found something, like it ought to.
+     *)       echo "OK";;
+  esac
+  death_test_num=`expr $death_test_num + 1`
+done
+
+# Test the non-death parts of the test too
+echo -n "Running non-death tests..."
+if "$DEBUGALLOCATION_TEST"; then
+  echo "OK"
+else
+  echo "FAILED"
+  num_failures=`expr $num_failures + 1`
+fi
+
+if [ "$num_failures" = 0 ]; then
+  echo "PASS"
+else
+  echo "Failed with $num_failures failures"
+fi
+exit $num_failures
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/frag_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/frag_unittest.cc
new file mode 100644
index 000000000..6d2619f3e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/frag_unittest.cc
@@ -0,0 +1,133 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2003, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Test speed of handling fragmented heap
+
+#include "config_for_unittests.h"
+#include 
+#include 
+#ifdef HAVE_SYS_RESOURCE_H
+#include            // for struct timeval
+#include        // for getrusage
+#endif
+#ifdef _WIN32
+#include             // for GetTickCount()
+#endif
+#include 
+#include "base/logging.h"
+#include "common.h"
+#include 
+
+using std::vector;
+
+int main(int argc, char** argv) {
+  // Make kAllocSize one page larger than the maximum small object size.
+  static const int kAllocSize = kMaxSize + kPageSize;
+  // Allocate 400MB in total.
+  static const int kTotalAlloc = 400 << 20;
+  static const int kAllocIterations = kTotalAlloc / kAllocSize;
+
+  // Allocate lots of objects
+  vector saved(kAllocIterations);
+  for (int i = 0; i < kAllocIterations; i++) {
+    saved[i] = new char[kAllocSize];
+  }
+
+  // Check the current "slack".
+  size_t slack_before;
+  MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes",
+                                                  &slack_before);
+
+  // Free alternating ones to fragment heap
+  size_t free_bytes = 0;
+  for (int i = 0; i < saved.size(); i += 2) {
+    delete[] saved[i];
+    free_bytes += kAllocSize;
+  }
+
+  // Check that slack delta is within 10% of expected.
+  size_t slack_after;
+  MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes",
+                                                  &slack_after);
+  CHECK_GE(slack_after, slack_before);
+  size_t slack = slack_after - slack_before;
+
+  CHECK_GT(double(slack), 0.9*free_bytes);
+  CHECK_LT(double(slack), 1.1*free_bytes);
+
+  // Dump malloc stats
+  static const int kBufSize = 1<<20;
+  char* buffer = new char[kBufSize];
+  MallocExtension::instance()->GetStats(buffer, kBufSize);
+  VLOG(1, "%s", buffer);
+  delete[] buffer;
+
+  // Now do timing tests
+  for (int i = 0; i < 5; i++) {
+    static const int kIterations = 100000;
+#ifdef HAVE_SYS_RESOURCE_H
+    struct rusage r;
+    getrusage(RUSAGE_SELF, &r);    // figure out user-time spent on this
+    struct timeval tv_start = r.ru_utime;
+#elif defined(_WIN32)
+    long long int tv_start = GetTickCount();
+#else
+# error No way to calculate time on your system
+#endif
+
+    for (int i = 0; i < kIterations; i++) {
+      size_t s;
+      MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes",
+                                                      &s);
+    }
+
+#ifdef HAVE_SYS_RESOURCE_H
+    getrusage(RUSAGE_SELF, &r);
+    struct timeval tv_end = r.ru_utime;
+    int64 sumsec = static_cast(tv_end.tv_sec) - tv_start.tv_sec;
+    int64 sumusec = static_cast(tv_end.tv_usec) - tv_start.tv_usec;
+#elif defined(_WIN32)
+    long long int tv_end = GetTickCount();
+    int64 sumsec = (tv_end - tv_start) / 1000;
+    // Resolution in windows is only to the millisecond, alas
+    int64 sumusec = ((tv_end - tv_start) % 1000) * 1000;
+#else
+# error No way to calculate time on your system
+#endif
+    fprintf(stderr, "getproperty: %6.1f ns/call\n",
+            (sumsec * 1e9 + sumusec * 1e3) / kIterations);
+  }
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/getpc_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/getpc_test.cc
new file mode 100644
index 000000000..d75e40bb0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/getpc_test.cc
@@ -0,0 +1,123 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// This verifies that GetPC works correctly.  This test uses a minimum
+// of Google infrastructure, to make it very easy to port to various
+// O/Ses and CPUs and test that GetPC is working.
+
+#include "config.h"
+#include "getpc.h"        // should be first to get the _GNU_SOURCE dfn
+#include 
+#include 
+#include 
+#include      // for setitimer
+
+// Needs to be volatile so compiler doesn't try to optimize it away
+static volatile void* getpc_retval = NULL;    // what GetPC returns
+static volatile bool prof_handler_called = false;
+
+static void prof_handler(int sig, siginfo_t*, void* signal_ucontext) {
+  if (!prof_handler_called)
+    getpc_retval = GetPC(*reinterpret_cast(signal_ucontext));
+  prof_handler_called = true;  // only store the retval once
+}
+
+static void RoutineCallingTheSignal() {
+  struct sigaction sa;
+  sa.sa_sigaction = prof_handler;
+  sa.sa_flags = SA_RESTART | SA_SIGINFO;
+  sigemptyset(&sa.sa_mask);
+  if (sigaction(SIGPROF, &sa, NULL) != 0) {
+    perror("sigaction");
+    exit(1);
+  }
+
+  struct itimerval timer;
+  timer.it_interval.tv_sec = 0;
+  timer.it_interval.tv_usec = 1000;
+  timer.it_value = timer.it_interval;
+  setitimer(ITIMER_PROF, &timer, 0);
+
+  // Now we need to do some work for a while, that doesn't call any
+  // other functions, so we can be guaranteed that when the SIGPROF
+  // fires, we're the routine executing.
+  int r = 0;
+  for (int i = 0; !prof_handler_called; ++i) {
+    for (int j = 0; j < i; j++) {
+      r ^= i;
+      r <<= 1;
+      r ^= j;
+      r >>= 1;
+    }
+  }
+
+  // Now make sure the above loop doesn't get optimized out
+  srand(r);
+}
+
+// This is an upper bound of how many bytes the instructions for
+// RoutineCallingTheSignal might be.  There's probably a more
+// principled way to do this, but I don't know how portable it would be.
+// (The function is 372 bytes when compiled with -g on Mac OS X 10.4.
+// I can imagine it would be even bigger in 64-bit architectures.)
+const int kRoutineSize = 512 * sizeof(void*)/4;    // allow 1024 for 64-bit
+
+int main(int argc, char** argv) {
+  RoutineCallingTheSignal();
+
+  // Annoyingly, C++ disallows casting pointer-to-function to
+  // pointer-to-object, so we use a C-style cast instead.
+  char* expected = (char*)&RoutineCallingTheSignal;
+  char* actual = (char*)getpc_retval;
+
+  // For ia64, ppc64v1, and parisc64, the function pointer is actually
+  // a struct.  For instance, ia64's dl-fptr.h:
+  //   struct fdesc {          /* An FDESC is a function descriptor.  */
+  //      ElfW(Addr) ip;      /* code entry point */
+  //      ElfW(Addr) gp;      /* global pointer */
+  //   };
+  // We want the code entry point.
+  // NOTE: ppc64 ELFv2 (Little Endian) does not have function pointers
+#if defined(__ia64) || \
+    (defined(__powerpc64__) && _CALL_ELF != 2)
+  expected = ((char**)expected)[0];         // this is "ip"
+#endif
+
+  if (actual < expected || actual > expected + kRoutineSize) {
+    printf("Test FAILED: actual PC: %p, expected PC: %p\n", actual, expected);
+    return 1;
+  } else {
+    printf("PASS\n");
+    return 0;
+  }
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker-death_unittest.sh b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker-death_unittest.sh
new file mode 100755
index 000000000..69db0c9e0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker-death_unittest.sh
@@ -0,0 +1,176 @@
+#!/bin/sh
+# Copyright (c) 2005, Google Inc.
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# ---
+# Author: Maxim Lifantsev
+#
+# Run the heap checker unittest in a mode where it is supposed to crash and
+# return an error if it doesn't.
+
+# We expect BINDIR to be set in the environment.
+# If not, we set it to some reasonable value.
+BINDIR="${BINDIR:-.}"
+
+if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then
+  echo "USAGE: $0 [unittest dir]"
+  echo "       By default, unittest_dir=$BINDIR"
+  exit 1
+fi
+
+EXE="${1:-$BINDIR/heap-checker_unittest}"
+TMPDIR="/tmp/heap_check_death_info"
+
+ALARM() {
+  # You need perl to run pprof, so I assume it's installed
+  perl -e '
+    $timeout=$ARGV[0]; shift;
+    $retval = 255;   # the default retval, for the case where we timed out
+    eval {           # need to run in an eval-block to trigger during system()
+      local $SIG{ALRM} = sub { die "alarm\n" };  # \n is required!
+      alarm $timeout;
+      $retval = system(@ARGV);
+      # Make retval bash-style: exit status, or 128+n if terminated by signal n
+      $retval = ($retval & 127) ? (128 + $retval) : ($retval >> 8);
+      alarm 0;
+    };
+    exit $retval;  # return system()-retval, or 255 if system() never returned
+' "$@"
+}
+
+# $1: timeout for alarm;
+# $2: regexp of expected exit code(s);
+# $3: regexp to match a line in the output;
+# $4: regexp to not match a line in the output;
+# $5+ args to pass to $EXE
+Test() {
+  # Note: make sure these varnames don't conflict with any vars outside Test()!
+  timeout="$1"
+  shift
+  expected_ec="$1"
+  shift
+  expected_regexp="$1"
+  shift
+  unexpected_regexp="$1"
+  shift
+
+  echo -n "Testing $EXE with $@ ... "
+  output="$TMPDIR/output"
+  ALARM $timeout env "$@" $EXE > "$output" 2>&1
+  actual_ec=$?
+  ec_ok=`expr "$actual_ec" : "$expected_ec$" >/dev/null || echo false`
+  matches_ok=`test -z "$expected_regexp" || \
+              grep "$expected_regexp" "$output" >/dev/null 2>&1 || echo false`
+  negmatches_ok=`test -z "$unexpected_regexp" || \
+                 ! grep "$unexpected_regexp" "$output" >/dev/null 2>&1 || echo false`
+  if $ec_ok && $matches_ok && $negmatches_ok; then
+    echo "PASS"
+    return 0  # 0: success
+  fi
+  # If we get here, we failed.  Now we just need to report why
+  echo "FAIL"
+  if [ $actual_ec -eq 255 ]; then  # 255 == SIGTERM due to $ALARM
+    echo "Test was taking unexpectedly long time to run and so we aborted it."
+    echo "Try the test case manually or raise the timeout from $timeout"
+    echo "to distinguish test slowness from a real problem."
+  else
+    $ec_ok || \
+      echo "Wrong exit code: expected: '$expected_ec'; actual: $actual_ec"
+    $matches_ok || \
+      echo "Output did not match '$expected_regexp'"
+    $negmatches_ok || \
+      echo "Output unexpectedly matched '$unexpected_regexp'"
+  fi
+  echo "Output from failed run:"
+  echo "---"
+  cat "$output"
+  echo "---"
+  return 1  # 1: failure
+}
+
+TMPDIR=/tmp/heap_check_death_info
+rm -rf $TMPDIR || exit 1
+mkdir $TMPDIR || exit 2
+
+export HEAPCHECK=strict       # default mode
+
+# These invocations should pass (0 == PASS):
+
+# This tests that turning leak-checker off dynamically works fine
+Test 120 0 "^PASS$" "" HEAPCHECK="" || exit 1
+
+# This disables threads so we can cause leaks reliably and test finding them
+Test 120 0 "^PASS$" "" HEAP_CHECKER_TEST_NO_THREADS=1 || exit 2
+
+# Test that --test_cancel_global_check works
+Test 20 0 "Canceling .* whole-program .* leak check$" "" \
+  HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_TEST_CANCEL_GLOBAL_CHECK=1 || exit 3
+Test 20 0 "Canceling .* whole-program .* leak check$" "" \
+  HEAP_CHECKER_TEST_TEST_LOOP_LEAK=1 HEAP_CHECKER_TEST_TEST_CANCEL_GLOBAL_CHECK=1 || exit 4
+
+# Test that very early log messages are present and controllable:
+EARLY_MSG="Starting tracking the heap$"
+
+Test 60 0 "$EARLY_MSG" "" \
+  HEAPCHECK="" HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 \
+  PERFTOOLS_VERBOSE=10 || exit 5
+Test 60 0 "MemoryRegionMap Init$" "" \
+  HEAPCHECK="" HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 \
+  PERFTOOLS_VERBOSE=11 || exit 6
+Test 60 0 "" "$EARLY_MSG" \
+  HEAPCHECK="" HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 \
+  PERFTOOLS_VERBOSE=-11 || exit 7
+
+# These invocations should fail with very high probability,
+# rather than return 0 or hang (1 == exit(1), 134 == abort(), 139 = SIGSEGV):
+
+Test 60 1 "Exiting .* because of .* leaks$" "" \
+  HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 || exit 8
+Test 60 1 "Exiting .* because of .* leaks$" "" \
+  HEAP_CHECKER_TEST_TEST_LOOP_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 || exit 9
+
+# Test that we produce a reasonable textual leak report.
+Test 60 1 "MakeALeak" "" \
+          HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 \
+  || exit 10
+
+# Test that very early log messages are present and controllable:
+Test 60 1 "Starting tracking the heap$" "" \
+  HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 PERFTOOLS_VERBOSE=10 \
+  || exit 11
+Test 60 1 "" "Starting tracking the heap" \
+  HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 PERFTOOLS_VERBOSE=-10 \
+  || exit 12
+
+cd /    # so we're not in TMPDIR when we delete it
+rm -rf $TMPDIR
+
+echo "PASS"
+
+exit 0
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker_unittest.cc
new file mode 100644
index 000000000..b4bcb5265
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker_unittest.cc
@@ -0,0 +1,1538 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Maxim Lifantsev
+//
+// Running:
+// ./heap-checker_unittest
+//
+// If the unittest crashes because it can't find pprof, try:
+// PPROF_PATH=/usr/local/someplace/bin/pprof ./heap-checker_unittest
+//
+// To test that the whole-program heap checker will actually cause a leak, try:
+// HEAPCHECK_TEST_LEAK= ./heap-checker_unittest
+// HEAPCHECK_TEST_LOOP_LEAK= ./heap-checker_unittest
+//
+// Note: Both of the above commands *should* abort with an error message.
+
+// CAVEAT: Do not use vector<> and string on-heap objects in this test,
+// otherwise the test can sometimes fail for tricky leak checks
+// when we want some allocated object not to be found live by the heap checker.
+// This can happen with memory allocators like tcmalloc that can allocate
+// heap objects back to back without any book-keeping data in between.
+// What happens is that end-of-storage pointers of a live vector
+// (or a string depending on the STL implementation used)
+// can happen to point to that other heap-allocated
+// object that is not reachable otherwise and that
+// we don't want to be reachable.
+//
+// The implication of this for real leak checking
+// is just one more chance for the liveness flood to be inexact
+// (see the comment in our .h file).
+
+#include "config_for_unittests.h"
+#ifdef HAVE_POLL_H
+#include 
+#endif
+#if defined HAVE_STDINT_H
+#include              // to get uint16_t (ISO naming madness)
+#elif defined HAVE_INTTYPES_H
+#include            // another place uint16_t might be defined
+#endif
+#include 
+#include 
+#include               // errno
+#ifdef HAVE_UNISTD_H
+#include              // for sleep(), geteuid()
+#endif
+#ifdef HAVE_MMAP
+#include 
+#endif
+#include               // for open(), close()
+#ifdef HAVE_EXECINFO_H
+#include            // backtrace
+#endif
+#ifdef HAVE_GRP_H
+#include                 // getgrent, getgrnam
+#endif
+#ifdef HAVE_PWD_H
+#include 
+#endif
+
+#include 
+#include              // for cout
+#include               // for hex
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "base/commandlineflags.h"
+#include "base/googleinit.h"
+#include "base/logging.h"
+#include "base/commandlineflags.h"
+#include "base/thread_lister.h"
+#include 
+#include "memory_region_map.h"
+#include 
+#include 
+
+// On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old
+// form of the name instead.
+#ifndef MAP_ANONYMOUS
+# define MAP_ANONYMOUS MAP_ANON
+#endif
+
+using namespace std;
+
+// ========================================================================= //
+
+// TODO(maxim): write a shell script to test that these indeed crash us
+//              (i.e. we do detect leaks)
+//              Maybe add more such crash tests.
+
+DEFINE_bool(test_leak,
+            EnvToBool("HEAP_CHECKER_TEST_TEST_LEAK", false),
+            "If should cause a leak crash");
+DEFINE_bool(test_loop_leak,
+            EnvToBool("HEAP_CHECKER_TEST_TEST_LOOP_LEAK", false),
+            "If should cause a looped leak crash");
+DEFINE_bool(test_register_leak,
+            EnvToBool("HEAP_CHECKER_TEST_TEST_REGISTER_LEAK", false),
+            "If should cause a leak crash by hiding a pointer "
+            "that is only in a register");
+DEFINE_bool(test_cancel_global_check,
+            EnvToBool("HEAP_CHECKER_TEST_TEST_CANCEL_GLOBAL_CHECK", false),
+            "If should test HeapLeakChecker::CancelGlobalCheck "
+            "when --test_leak or --test_loop_leak are given; "
+            "the test should not fail then");
+DEFINE_bool(maybe_stripped,
+            EnvToBool("HEAP_CHECKER_TEST_MAYBE_STRIPPED", true),
+            "If we think we can be a stripped binary");
+DEFINE_bool(interfering_threads,
+            EnvToBool("HEAP_CHECKER_TEST_INTERFERING_THREADS", true),
+            "If we should use threads trying "
+            "to interfere with leak checking");
+DEFINE_bool(hoarding_threads,
+            EnvToBool("HEAP_CHECKER_TEST_HOARDING_THREADS", true),
+            "If threads (usually the manager thread) are known "
+            "to retain some old state in their global buffers, "
+            "so that it's hard to force leaks when threads are around");
+            // TODO(maxim): Chage the default to false
+            // when the standard environment used NTPL threads:
+            // they do not seem to have this problem.
+DEFINE_bool(no_threads,
+            EnvToBool("HEAP_CHECKER_TEST_NO_THREADS", false),
+            "If we should not use any threads");
+            // This is used so we can make can_create_leaks_reliably true
+            // for any pthread implementation and test with that.
+
+DECLARE_int64(heap_check_max_pointer_offset);   // heap-checker.cc
+DECLARE_string(heap_check);  // in heap-checker.cc
+
+#define WARN_IF(cond, msg)   LOG_IF(WARNING, cond, msg)
+
+// This is an evil macro!  Be very careful using it...
+#undef VLOG          // and we start by evilling overriding logging.h VLOG
+#define VLOG(lvl)    if (FLAGS_verbose >= (lvl))  cout << "\n"
+// This is, likewise, evil
+#define LOGF         VLOG(INFO)
+
+static void RunHeapBusyThreads();  // below
+
+
+class Closure {
+ public:
+  virtual ~Closure() { }
+  virtual void Run() = 0;
+};
+
+class Callback0 : public Closure {
+ public:
+  typedef void (*FunctionSignature)();
+
+  inline Callback0(FunctionSignature f) : f_(f) {}
+  virtual void Run() { (*f_)(); delete this; }
+
+ private:
+  FunctionSignature f_;
+};
+
+template  class Callback1 : public Closure {
+ public:
+  typedef void (*FunctionSignature)(P1);
+
+  inline Callback1(FunctionSignature f, P1 p1) : f_(f), p1_(p1) {}
+  virtual void Run() { (*f_)(p1_); delete this; }
+
+ private:
+  FunctionSignature f_;
+  P1 p1_;
+};
+
+template  class Callback2 : public Closure {
+ public:
+  typedef void (*FunctionSignature)(P1,P2);
+
+  inline Callback2(FunctionSignature f, P1 p1, P2 p2) : f_(f), p1_(p1), p2_(p2) {}
+  virtual void Run() { (*f_)(p1_, p2_); delete this; }
+
+ private:
+  FunctionSignature f_;
+  P1 p1_;
+  P2 p2_;
+};
+
+inline Callback0* NewCallback(void (*function)()) {
+  return new Callback0(function);
+}
+
+template 
+inline Callback1* NewCallback(void (*function)(P1), P1 p1) {
+  return new Callback1(function, p1);
+}
+
+template 
+inline Callback2* NewCallback(void (*function)(P1,P2), P1 p1, P2 p2) {
+  return new Callback2(function, p1, p2);
+}
+
+
+// Set to true at end of main, so threads know.  Not entirely thread-safe!,
+// but probably good enough.
+static bool g_have_exited_main = false;
+
+// If we can reliably create leaks (i.e. make leaked object
+// really unreachable from any global data).
+static bool can_create_leaks_reliably = false;
+
+// We use a simple allocation wrapper
+// to make sure we wipe out the newly allocated objects
+// in case they still happened to contain some pointer data
+// accidentally left by the memory allocator.
+struct Initialized { };
+static Initialized initialized;
+void* operator new(size_t size, const Initialized&) {
+  // Below we use "p = new(initialized) Foo[1];" and  "delete[] p;"
+  // instead of "p = new(initialized) Foo;"
+  // when we need to delete an allocated object.
+  void* p = malloc(size);
+  memset(p, 0, size);
+  return p;
+}
+void* operator new[](size_t size, const Initialized&) {
+  char* p = new char[size];
+  memset(p, 0, size);
+  return p;
+}
+
+static void DoWipeStack(int n);  // defined below
+static void WipeStack() { DoWipeStack(20); }
+
+static void Pause() {
+  poll(NULL, 0, 77);  // time for thread activity in HeapBusyThreadBody
+
+  // Indirectly test malloc_extension.*:
+  CHECK(MallocExtension::instance()->VerifyAllMemory());
+  int blocks;
+  size_t total;
+  int histogram[kMallocHistogramSize];
+  if (MallocExtension::instance()
+       ->MallocMemoryStats(&blocks, &total, histogram)  &&  total != 0) {
+    VLOG(3) << "Malloc stats: " << blocks << " blocks of "
+            << total << " bytes";
+    for (int i = 0; i < kMallocHistogramSize; ++i) {
+      if (histogram[i]) {
+        VLOG(3) << "  Malloc histogram at " << i << " : " << histogram[i];
+      }
+    }
+  }
+  WipeStack();  // e.g. MallocExtension::VerifyAllMemory
+                // can leave pointers to heap objects on stack
+}
+
+// Make gcc think a pointer is "used"
+template 
+static void Use(T** foo) {
+  VLOG(2) << "Dummy-using " << static_cast(*foo) << " at " << foo;
+}
+
+// Arbitrary value, but not such that xor'ing with it is likely
+// to map one valid pointer to another valid pointer:
+static const uintptr_t kHideMask =
+  static_cast(0xF03A5F7BF03A5F7BLL);
+
+// Helpers to hide a pointer from live data traversal.
+// We just xor the pointer so that (with high probability)
+// it's not a valid address of a heap object anymore.
+// Both Hide and UnHide must be executed within RunHidden() below
+// to prevent leaving stale data on active stack that can be a pointer
+// to a heap object that is not actually reachable via live variables.
+// (UnHide might leave heap pointer value for an object
+//  that will be deallocated but later another object
+//  can be allocated at the same heap address.)
+template 
+static void Hide(T** ptr) {
+  // we cast values, not dereferenced pointers, so no aliasing issues:
+  *ptr = reinterpret_cast(reinterpret_cast(*ptr) ^ kHideMask);
+  VLOG(2) << "hid: " << static_cast(*ptr);
+}
+
+template 
+static void UnHide(T** ptr) {
+  VLOG(2) << "unhiding: " << static_cast(*ptr);
+  // we cast values, not dereferenced pointers, so no aliasing issues:
+  *ptr = reinterpret_cast(reinterpret_cast(*ptr) ^ kHideMask);
+}
+
+static void LogHidden(const char* message, const void* ptr) {
+  LOGF << message << " : "
+       << ptr << " ^ " << reinterpret_cast(kHideMask) << endl;
+}
+
+// volatile to fool the compiler against inlining the calls to these
+void (*volatile run_hidden_ptr)(Closure* c, int n);
+void (*volatile wipe_stack_ptr)(int n);
+
+static void DoRunHidden(Closure* c, int n) {
+  if (n) {
+    VLOG(10) << "Level " << n << " at " << &n;
+    (*run_hidden_ptr)(c, n-1);
+    (*wipe_stack_ptr)(n);
+    sleep(0);  // undo -foptimize-sibling-calls
+  } else {
+    c->Run();
+  }
+}
+
+/*static*/ void DoWipeStack(int n) {
+  VLOG(10) << "Wipe level " << n << " at " << &n;
+  if (n) {
+    const int sz = 30;
+    volatile int arr[sz] ATTRIBUTE_UNUSED;
+    for (int i = 0; i < sz; ++i) arr[i] = 0;
+    (*wipe_stack_ptr)(n-1);
+    sleep(0);  // undo -foptimize-sibling-calls
+  }
+}
+
+// This executes closure c several stack frames down from the current one
+// and then makes an effort to also wipe out the stack data that was used by
+// the closure.
+// This way we prevent leak checker from finding any temporary pointers
+// of the closure execution on the stack and deciding that
+// these pointers (and the pointed objects) are still live.
+static void RunHidden(Closure* c) {
+  DoRunHidden(c, 15);
+  DoWipeStack(20);
+}
+
+static void DoAllocHidden(size_t size, void** ptr) {
+  void* p = new(initialized) char[size];
+  Hide(&p);
+  Use(&p);  // use only hidden versions
+  VLOG(2) << "Allocated hidden " << p << " at " << &p;
+  *ptr = p;  // assign the hidden versions
+}
+
+static void* AllocHidden(size_t size) {
+  void* r;
+  RunHidden(NewCallback(DoAllocHidden, size, &r));
+  return r;
+}
+
+static void DoDeAllocHidden(void** ptr) {
+  Use(ptr);  // use only hidden versions
+  void* p = *ptr;
+  VLOG(2) << "Deallocating hidden " << p;
+  UnHide(&p);
+  delete [] reinterpret_cast(p);
+}
+
+static void DeAllocHidden(void** ptr) {
+  RunHidden(NewCallback(DoDeAllocHidden, ptr));
+  *ptr = NULL;
+  Use(ptr);
+}
+
+void PreventHeapReclaiming(size_t size) {
+#ifdef NDEBUG
+  if (true) {
+    static void** no_reclaim_list = NULL;
+    CHECK(size >= sizeof(void*));
+    // We can't use malloc_reclaim_memory flag in opt mode as debugallocation.cc
+    // is not used. Instead we allocate a bunch of heap objects that are
+    // of the same size as what we are going to leak to ensure that the object
+    // we are about to leak is not at the same address as some old allocated
+    // and freed object that might still have pointers leading to it.
+    for (int i = 0; i < 100; ++i) {
+      void** p = reinterpret_cast(new(initialized) char[size]);
+      p[0] = no_reclaim_list;
+      no_reclaim_list = p;
+    }
+  }
+#endif
+}
+
+static bool RunSilent(HeapLeakChecker* check,
+                      bool (HeapLeakChecker::* func)()) {
+  // By default, don't print the 'we detected a leak' message in the
+  // cases we're expecting a leak (we still print when --v is >= 1).
+  // This way, the logging output is less confusing: we only print
+  // "we detected a leak", and how to diagnose it, for *unexpected* leaks.
+  int32 old_FLAGS_verbose = FLAGS_verbose;
+  if (!VLOG_IS_ON(1))             // not on a verbose setting
+    FLAGS_verbose = FATAL;        // only log fatal errors
+  const bool retval = (check->*func)();
+  FLAGS_verbose = old_FLAGS_verbose;
+  return retval;
+}
+
+#define RUN_SILENT(check, func)  RunSilent(&(check), &HeapLeakChecker::func)
+
+enum CheckType { SAME_HEAP, NO_LEAKS };
+
+static void VerifyLeaks(HeapLeakChecker* check, CheckType type,
+                        int leaked_bytes, int leaked_objects) {
+  WipeStack();  // to help with can_create_leaks_reliably
+  const bool no_leaks =
+    type == NO_LEAKS ? RUN_SILENT(*check, BriefNoLeaks)
+                     : RUN_SILENT(*check, BriefSameHeap);
+  if (can_create_leaks_reliably) {
+    // these might still fail occasionally, but it should be very rare
+    CHECK_EQ(no_leaks, false);
+    CHECK_EQ(check->BytesLeaked(), leaked_bytes);
+    CHECK_EQ(check->ObjectsLeaked(), leaked_objects);
+  } else {
+    WARN_IF(no_leaks != false,
+            "Expected leaks not found: "
+            "Some liveness flood must be too optimistic");
+  }
+}
+
+// not deallocates
+static void TestHeapLeakCheckerDeathSimple() {
+  HeapLeakChecker check("death_simple");
+  void* foo = AllocHidden(100 * sizeof(int));
+  Use(&foo);
+  void* bar = AllocHidden(300);
+  Use(&bar);
+  LogHidden("Leaking", foo);
+  LogHidden("Leaking", bar);
+  Pause();
+  VerifyLeaks(&check, NO_LEAKS, 300 + 100 * sizeof(int), 2);
+  DeAllocHidden(&foo);
+  DeAllocHidden(&bar);
+}
+
+static void MakeDeathLoop(void** arr1, void** arr2) {
+  PreventHeapReclaiming(2 * sizeof(void*));
+  void** a1 = new(initialized) void*[2];
+  void** a2 = new(initialized) void*[2];
+  a1[1] = reinterpret_cast(a2);
+  a2[1] = reinterpret_cast(a1);
+  Hide(&a1);
+  Hide(&a2);
+  Use(&a1);
+  Use(&a2);
+  VLOG(2) << "Made hidden loop at " << &a1 << " to " << arr1;
+  *arr1 = a1;
+  *arr2 = a2;
+}
+
+// not deallocates two objects linked together
+static void TestHeapLeakCheckerDeathLoop() {
+  HeapLeakChecker check("death_loop");
+  void* arr1;
+  void* arr2;
+  RunHidden(NewCallback(MakeDeathLoop, &arr1, &arr2));
+  Use(&arr1);
+  Use(&arr2);
+  LogHidden("Leaking", arr1);
+  LogHidden("Leaking", arr2);
+  Pause();
+  VerifyLeaks(&check, NO_LEAKS, 4 * sizeof(void*), 2);
+  DeAllocHidden(&arr1);
+  DeAllocHidden(&arr2);
+}
+
+// deallocates more than allocates
+static void TestHeapLeakCheckerDeathInverse() {
+  void* bar = AllocHidden(250 * sizeof(int));
+  Use(&bar);
+  LogHidden("Pre leaking", bar);
+  Pause();
+  HeapLeakChecker check("death_inverse");
+  void* foo = AllocHidden(100 * sizeof(int));
+  Use(&foo);
+  LogHidden("Leaking", foo);
+  DeAllocHidden(&bar);
+  Pause();
+  VerifyLeaks(&check, SAME_HEAP,
+              100 * static_cast(sizeof(int)),
+              1);
+  DeAllocHidden(&foo);
+}
+
+// deallocates more than allocates
+static void TestHeapLeakCheckerDeathNoLeaks() {
+  void* foo = AllocHidden(100 * sizeof(int));
+  Use(&foo);
+  void* bar = AllocHidden(250 * sizeof(int));
+  Use(&bar);
+  HeapLeakChecker check("death_noleaks");
+  DeAllocHidden(&bar);
+  CHECK_EQ(check.BriefNoLeaks(), true);
+  DeAllocHidden(&foo);
+}
+
+// have less objecs
+static void TestHeapLeakCheckerDeathCountLess() {
+  void* bar1 = AllocHidden(50 * sizeof(int));
+  Use(&bar1);
+  void* bar2 = AllocHidden(50 * sizeof(int));
+  Use(&bar2);
+  LogHidden("Pre leaking", bar1);
+  LogHidden("Pre leaking", bar2);
+  Pause();
+  HeapLeakChecker check("death_count_less");
+  void* foo = AllocHidden(100 * sizeof(int));
+  Use(&foo);
+  LogHidden("Leaking", foo);
+  DeAllocHidden(&bar1);
+  DeAllocHidden(&bar2);
+  Pause();
+  VerifyLeaks(&check, SAME_HEAP,
+              100 * sizeof(int),
+              1);
+  DeAllocHidden(&foo);
+}
+
+// have more objecs
+static void TestHeapLeakCheckerDeathCountMore() {
+  void* foo = AllocHidden(100 * sizeof(int));
+  Use(&foo);
+  LogHidden("Pre leaking", foo);
+  Pause();
+  HeapLeakChecker check("death_count_more");
+  void* bar1 = AllocHidden(50 * sizeof(int));
+  Use(&bar1);
+  void* bar2 = AllocHidden(50 * sizeof(int));
+  Use(&bar2);
+  LogHidden("Leaking", bar1);
+  LogHidden("Leaking", bar2);
+  DeAllocHidden(&foo);
+  Pause();
+  VerifyLeaks(&check, SAME_HEAP,
+              100 * sizeof(int),
+              2);
+  DeAllocHidden(&bar1);
+  DeAllocHidden(&bar2);
+}
+
+static void TestHiddenPointer() {
+  int i;
+  void* foo = &i;
+  HiddenPointer p(foo);
+  CHECK_EQ(foo, p.get());
+
+  // Confirm pointer doesn't appear to contain a byte sequence
+  // that == the pointer.  We don't really need to test that
+  // the xor trick itself works, as without it nothing in this
+  // test suite would work.  See the Hide/Unhide/*Hidden* set
+  // of helper methods.
+  void **pvoid = reinterpret_cast(&p);
+  CHECK_NE(foo, *pvoid);
+}
+
+// simple tests that deallocate what they allocated
+static void TestHeapLeakChecker() {
+  { HeapLeakChecker check("trivial");
+    int foo = 5;
+    int* p = &foo;
+    Use(&p);
+    Pause();
+    CHECK(check.BriefSameHeap());
+  }
+  Pause();
+  { HeapLeakChecker check("simple");
+    void* foo = AllocHidden(100 * sizeof(int));
+    Use(&foo);
+    void* bar = AllocHidden(200 * sizeof(int));
+    Use(&bar);
+    DeAllocHidden(&foo);
+    DeAllocHidden(&bar);
+    Pause();
+    CHECK(check.BriefSameHeap());
+  }
+}
+
+// no false positives
+static void TestHeapLeakCheckerNoFalsePositives() {
+  { HeapLeakChecker check("trivial_p");
+    int foo = 5;
+    int* p = &foo;
+    Use(&p);
+    Pause();
+    CHECK(check.BriefSameHeap());
+  }
+  Pause();
+  { HeapLeakChecker check("simple_p");
+    void* foo = AllocHidden(100 * sizeof(int));
+    Use(&foo);
+    void* bar = AllocHidden(200 * sizeof(int));
+    Use(&bar);
+    DeAllocHidden(&foo);
+    DeAllocHidden(&bar);
+    Pause();
+    CHECK(check.SameHeap());
+  }
+}
+
+// test that we detect leaks when we have same total # of bytes and
+// objects, but different individual object sizes
+static void TestLeakButTotalsMatch() {
+  void* bar1 = AllocHidden(240 * sizeof(int));
+  Use(&bar1);
+  void* bar2 = AllocHidden(160 * sizeof(int));
+  Use(&bar2);
+  LogHidden("Pre leaking", bar1);
+  LogHidden("Pre leaking", bar2);
+  Pause();
+  HeapLeakChecker check("trick");
+  void* foo1 = AllocHidden(280 * sizeof(int));
+  Use(&foo1);
+  void* foo2 = AllocHidden(120 * sizeof(int));
+  Use(&foo2);
+  LogHidden("Leaking", foo1);
+  LogHidden("Leaking", foo2);
+  DeAllocHidden(&bar1);
+  DeAllocHidden(&bar2);
+  Pause();
+
+  // foo1 and foo2 leaked
+  VerifyLeaks(&check, NO_LEAKS, (280+120)*sizeof(int), 2);
+
+  DeAllocHidden(&foo1);
+  DeAllocHidden(&foo2);
+}
+
+// no false negatives from pprof
+static void TestHeapLeakCheckerDeathTrick() {
+  void* bar1 = AllocHidden(240 * sizeof(int));
+  Use(&bar1);
+  void* bar2 = AllocHidden(160 * sizeof(int));
+  Use(&bar2);
+  HeapLeakChecker check("death_trick");
+  DeAllocHidden(&bar1);
+  DeAllocHidden(&bar2);
+  void* foo1 = AllocHidden(280 * sizeof(int));
+  Use(&foo1);
+  void* foo2 = AllocHidden(120 * sizeof(int));
+  Use(&foo2);
+  // TODO(maxim): use the above if we make pprof work in automated test runs
+  if (!FLAGS_maybe_stripped) {
+    CHECK_EQ(RUN_SILENT(check, SameHeap), false);
+      // pprof checking should catch the leak
+  } else {
+    WARN_IF(RUN_SILENT(check, SameHeap) != false,
+            "death_trick leak is not caught; "
+            "we must be using a stripped binary");
+  }
+  DeAllocHidden(&foo1);
+  DeAllocHidden(&foo2);
+}
+
+// simple leak
+static void TransLeaks() {
+  AllocHidden(1 * sizeof(char));
+}
+
+// range-based disabling using Disabler
+static void ScopedDisabledLeaks() {
+  HeapLeakChecker::Disabler disabler;
+  AllocHidden(3 * sizeof(int));
+  TransLeaks();
+  (void)malloc(10);  // Direct leak
+}
+
+// have different disabled leaks
+static void* RunDisabledLeaks(void* a) {
+  ScopedDisabledLeaks();
+  return a;
+}
+
+// have different disabled leaks inside of a thread
+static void ThreadDisabledLeaks() {
+  if (FLAGS_no_threads)  return;
+  pthread_t tid;
+  pthread_attr_t attr;
+  CHECK_EQ(pthread_attr_init(&attr), 0);
+  CHECK_EQ(pthread_create(&tid, &attr, RunDisabledLeaks, NULL), 0);
+  void* res;
+  CHECK_EQ(pthread_join(tid, &res), 0);
+}
+
+// different disabled leaks (some in threads)
+static void TestHeapLeakCheckerDisabling() {
+  HeapLeakChecker check("disabling");
+
+  RunDisabledLeaks(NULL);
+  RunDisabledLeaks(NULL);
+  ThreadDisabledLeaks();
+  RunDisabledLeaks(NULL);
+  ThreadDisabledLeaks();
+  ThreadDisabledLeaks();
+
+  Pause();
+
+  CHECK(check.SameHeap());
+}
+
+typedef set IntSet;
+
+static int some_ints[] = { 1, 2, 3, 21, 22, 23, 24, 25 };
+
+static void DoTestSTLAlloc() {
+  IntSet* x = new(initialized) IntSet[1];
+  *x = IntSet(some_ints, some_ints + 6);
+  for (int i = 0; i < 1000; i++) {
+    x->insert(i*3);
+  }
+  delete [] x;
+}
+
+// Check that normal STL usage does not result in a leak report.
+// (In particular we test that there's no complex STL's own allocator
+// running on top of our allocator with hooks to heap profiler
+// that can result in false leak report in this case.)
+static void TestSTLAlloc() {
+  HeapLeakChecker check("stl");
+  RunHidden(NewCallback(DoTestSTLAlloc));
+  CHECK_EQ(check.BriefSameHeap(), true);
+}
+
+static void DoTestSTLAllocInverse(IntSet** setx) {
+  IntSet* x = new(initialized) IntSet[1];
+  *x = IntSet(some_ints, some_ints + 3);
+  for (int i = 0; i < 100; i++) {
+    x->insert(i*2);
+  }
+  Hide(&x);
+  *setx = x;
+}
+
+static void FreeTestSTLAllocInverse(IntSet** setx) {
+  IntSet* x = *setx;
+  UnHide(&x);
+  delete [] x;
+}
+
+// Check that normal leaked STL usage *does* result in a leak report.
+// (In particular we test that there's no complex STL's own allocator
+// running on top of our allocator with hooks to heap profiler
+// that can result in false absence of leak report in this case.)
+static void TestSTLAllocInverse() {
+  HeapLeakChecker check("death_inverse_stl");
+  IntSet* x;
+  RunHidden(NewCallback(DoTestSTLAllocInverse, &x));
+  LogHidden("Leaking", x);
+  if (can_create_leaks_reliably) {
+    WipeStack();  // to help with can_create_leaks_reliably
+    // these might still fail occasionally, but it should be very rare
+    CHECK_EQ(RUN_SILENT(check, BriefNoLeaks), false);
+    CHECK_GE(check.BytesLeaked(), 100 * sizeof(int));
+    CHECK_GE(check.ObjectsLeaked(), 100);
+      // assumes set<>s are represented by some kind of binary tree
+      // or something else allocating >=1 heap object per set object
+  } else {
+    WARN_IF(RUN_SILENT(check, BriefNoLeaks) != false,
+            "Expected leaks not found: "
+            "Some liveness flood must be too optimistic");
+  }
+  RunHidden(NewCallback(FreeTestSTLAllocInverse, &x));
+}
+
+template
+static void DirectTestSTLAlloc(Alloc allocator, const char* name) {
+  HeapLeakChecker check((string("direct_stl-") + name).c_str());
+  static const int kSize = 1000;
+  typename Alloc::value_type* ptrs[kSize];
+  for (int i = 0; i < kSize; ++i) {
+    typename Alloc::value_type* p = allocator.allocate(i*3+1);
+    HeapLeakChecker::IgnoreObject(p);
+    // This will crash if p is not known to heap profiler:
+    // (i.e. STL's "allocator" does not have a direct hook to heap profiler)
+    HeapLeakChecker::UnIgnoreObject(p);
+    ptrs[i] = p;
+  }
+  for (int i = 0; i < kSize; ++i) {
+    allocator.deallocate(ptrs[i], i*3+1);
+    ptrs[i] = NULL;
+  }
+  CHECK(check.BriefSameHeap());  // just in case
+}
+
+static struct group* grp = NULL;
+static const int kKeys = 50;
+static pthread_key_t key[kKeys];
+
+static void KeyFree(void* ptr) {
+  delete [] reinterpret_cast(ptr);
+}
+
+static bool key_init_has_run = false;
+
+static void KeyInit() {
+  for (int i = 0; i < kKeys; ++i) {
+    CHECK_EQ(pthread_key_create(&key[i], KeyFree), 0);
+    VLOG(2) << "pthread key " << i << " : " << key[i];
+  }
+  key_init_has_run = true;   // needed for a sanity-check
+}
+
+// force various C library static and thread-specific allocations
+static void TestLibCAllocate() {
+  CHECK(key_init_has_run);
+  for (int i = 0; i < kKeys; ++i) {
+    void* p = pthread_getspecific(key[i]);
+    if (NULL == p) {
+      if (i == 0) {
+        // Test-logging inside threads which (potentially) creates and uses
+        // thread-local data inside standard C++ library:
+        VLOG(0) << "Adding pthread-specifics for thread " << pthread_self()
+                << " pid " << getpid();
+      }
+      p = new(initialized) char[77 + i];
+      VLOG(2) << "pthread specific " << i << " : " << p;
+      pthread_setspecific(key[i], p);
+    }
+  }
+
+  strerror(errno);
+  const time_t now = time(NULL);
+  ctime(&now);
+#ifdef HAVE_EXECINFO_H
+  void *stack[1];
+  backtrace(stack, 1);
+#endif
+#ifdef HAVE_GRP_H
+  gid_t gid = getgid();
+  getgrgid(gid);
+  if (grp == NULL)  grp = getgrent();  // a race condition here is okay
+  getgrnam(grp->gr_name);
+#endif
+#ifdef HAVE_PWD_H
+  getpwuid(geteuid());
+#endif
+}
+
+// Continuous random heap memory activity to try to disrupt heap checking.
+static void* HeapBusyThreadBody(void* a) {
+  const int thread_num = reinterpret_cast(a);
+  VLOG(0) << "A new HeapBusyThread " << thread_num;
+  TestLibCAllocate();
+
+  int user = 0;
+  // Try to hide ptr from heap checker in a CPU register:
+  // Here we are just making a best effort to put the only pointer
+  // to a heap object into a thread register to test
+  // the thread-register finding machinery in the heap checker.
+#if defined(__i386__) && defined(__GNUC__)
+  register int** ptr asm("esi");
+#elif defined(__x86_64__) && defined(__GNUC__)
+  register int** ptr asm("r15");
+#else
+  register int** ptr;
+#endif
+  ptr = NULL;
+  typedef set Set;
+  Set s1;
+  while (1) {
+    // TestLibCAllocate() calls libc functions that don't work so well
+    // after main() has exited.  So we just don't do the test then.
+    if (!g_have_exited_main)
+      TestLibCAllocate();
+
+    if (ptr == NULL) {
+      ptr = new(initialized) int*[1];
+      *ptr = new(initialized) int[1];
+    }
+    set* s2 = new(initialized) set[1];
+    s1.insert(random());
+    s2->insert(*s1.begin());
+    user += *s2->begin();
+    **ptr += user;
+    if (random() % 51 == 0) {
+      s1.clear();
+      if (random() % 2 == 0) {
+        s1.~Set();
+        new(&s1) Set;
+      }
+    }
+    VLOG(3) << pthread_self() << " (" << getpid() << "): in wait: "
+            << ptr << ", " << *ptr << "; " << s1.size();
+    VLOG(2) << pthread_self() << " (" << getpid() << "): in wait, ptr = "
+            << reinterpret_cast(
+                 reinterpret_cast(ptr) ^ kHideMask)
+            << "^" << reinterpret_cast(kHideMask);
+    if (FLAGS_test_register_leak  &&  thread_num % 5 == 0) {
+      // Hide the register "ptr" value with an xor mask.
+      // If one provides --test_register_leak flag, the test should
+      // (with very high probability) crash on some leak check
+      // with a leak report (of some x * sizeof(int) + y * sizeof(int*) bytes)
+      // pointing at the two lines above in this function
+      // with "new(initialized) int" in them as the allocators
+      // of the leaked objects.
+      // CAVEAT: We can't really prevent a compiler to save some
+      // temporary values of "ptr" on the stack and thus let us find
+      // the heap objects not via the register.
+      // Hence it's normal if for certain compilers or optimization modes
+      // --test_register_leak does not cause a leak crash of the above form
+      // (this happens e.g. for gcc 4.0.1 in opt mode).
+      ptr = reinterpret_cast(
+          reinterpret_cast(ptr) ^ kHideMask);
+      // busy loop to get the thread interrupted at:
+      for (int i = 1; i < 10000000; ++i)  user += (1 + user * user * 5) / i;
+      ptr = reinterpret_cast(
+          reinterpret_cast(ptr) ^ kHideMask);
+    } else {
+      poll(NULL, 0, random() % 100);
+    }
+    VLOG(2) << pthread_self() << ": continuing";
+    if (random() % 3 == 0) {
+      delete [] *ptr;
+      delete [] ptr;
+      ptr = NULL;
+    }
+    delete [] s2;
+  }
+  return a;
+}
+
+static void RunHeapBusyThreads() {
+  KeyInit();
+  if (!FLAGS_interfering_threads || FLAGS_no_threads)  return;
+
+  const int n = 17;  // make many threads
+
+  pthread_t tid;
+  pthread_attr_t attr;
+  CHECK_EQ(pthread_attr_init(&attr), 0);
+  // make them and let them run
+  for (int i = 0; i < n; ++i) {
+    VLOG(0) << "Creating extra thread " << i + 1;
+    CHECK(pthread_create(&tid, &attr, HeapBusyThreadBody,
+                         reinterpret_cast(i)) == 0);
+  }
+
+  Pause();
+  Pause();
+}
+
+// ========================================================================= //
+
+// This code section is to test that objects that are reachable from global
+// variables are not reported as leaks
+// as well as that (Un)IgnoreObject work for such objects fine.
+
+// An object making functions:
+// returns a "weird" pointer to a new object for which
+// it's worth checking that the object is reachable via that pointer.
+typedef void* (*ObjMakerFunc)();
+static list obj_makers;  // list of registered object makers
+
+// Helper macro to register an object making function
+// 'name' is an identifier of this object maker,
+// 'body' is its function body that must declare
+//        pointer 'p' to the nex object to return.
+// Usage example:
+//   REGISTER_OBJ_MAKER(trivial, int* p = new(initialized) int;)
+#define REGISTER_OBJ_MAKER(name, body) \
+  void* ObjMaker_##name##_() { \
+    VLOG(1) << "Obj making " << #name; \
+    body; \
+    return p; \
+  } \
+  static ObjMakerRegistrar maker_reg_##name##__(&ObjMaker_##name##_);
+// helper class for REGISTER_OBJ_MAKER
+struct ObjMakerRegistrar {
+  ObjMakerRegistrar(ObjMakerFunc obj_maker) { obj_makers.push_back(obj_maker); }
+};
+
+// List of the objects/pointers made with all the obj_makers
+// to test reachability via global data pointers during leak checks.
+static list* live_objects = new list;
+  // pointer so that it does not get destructed on exit
+
+// Exerciser for one ObjMakerFunc.
+static void TestPointerReach(ObjMakerFunc obj_maker) {
+  HeapLeakChecker::IgnoreObject(obj_maker());  // test IgnoreObject
+
+  void* obj = obj_maker();
+  HeapLeakChecker::IgnoreObject(obj);
+  HeapLeakChecker::UnIgnoreObject(obj);  // test UnIgnoreObject
+  HeapLeakChecker::IgnoreObject(obj);  // not to need deletion for obj
+
+  live_objects->push_back(obj_maker());  // test reachability at leak check
+}
+
+// Test all ObjMakerFunc registred via REGISTER_OBJ_MAKER.
+static void TestObjMakers() {
+  for (list::const_iterator i = obj_makers.begin();
+       i != obj_makers.end(); ++i) {
+    TestPointerReach(*i);
+    TestPointerReach(*i);  // a couple more times would not hurt
+    TestPointerReach(*i);
+  }
+}
+
+// A dummy class to mimic allocation behavior of string-s.
+template
+struct Array {
+  Array() {
+    size = 3 + random() % 30;
+    ptr = new(initialized) T[size];
+  }
+  ~Array() { delete [] ptr; }
+  Array(const Array& x) {
+    size = x.size;
+    ptr = new(initialized) T[size];
+    for (size_t i = 0; i < size; ++i) {
+      ptr[i] = x.ptr[i];
+    }
+  }
+  void operator=(const Array& x) {
+    delete [] ptr;
+    size = x.size;
+    ptr = new(initialized) T[size];
+    for (size_t i = 0; i < size; ++i) {
+      ptr[i] = x.ptr[i];
+    }
+  }
+  void append(const Array& x) {
+    T* p = new(initialized) T[size + x.size];
+    for (size_t i = 0; i < size; ++i) {
+      p[i] = ptr[i];
+    }
+    for (size_t i = 0; i < x.size; ++i) {
+      p[size+i] = x.ptr[i];
+    }
+    size += x.size;
+    delete [] ptr;
+    ptr = p;
+  }
+ private:
+  size_t size;
+  T* ptr;
+};
+
+// to test pointers to objects, built-in arrays, string, etc:
+REGISTER_OBJ_MAKER(plain, int* p = new(initialized) int;)
+REGISTER_OBJ_MAKER(int_array_1, int* p = new(initialized) int[1];)
+REGISTER_OBJ_MAKER(int_array, int* p = new(initialized) int[10];)
+REGISTER_OBJ_MAKER(string, Array* p = new(initialized) Array();)
+REGISTER_OBJ_MAKER(string_array,
+                   Array* p = new(initialized) Array[5];)
+REGISTER_OBJ_MAKER(char_array, char* p = new(initialized) char[5];)
+REGISTER_OBJ_MAKER(appended_string,
+  Array* p = new Array();
+  p->append(Array());
+)
+REGISTER_OBJ_MAKER(plain_ptr, int** p = new(initialized) int*;)
+REGISTER_OBJ_MAKER(linking_ptr,
+  int** p = new(initialized) int*;
+  *p = new(initialized) int;
+)
+
+// small objects:
+REGISTER_OBJ_MAKER(0_sized, void* p = malloc(0);)  // 0-sized object (important)
+REGISTER_OBJ_MAKER(1_sized, void* p = malloc(1);)
+REGISTER_OBJ_MAKER(2_sized, void* p = malloc(2);)
+REGISTER_OBJ_MAKER(3_sized, void* p = malloc(3);)
+REGISTER_OBJ_MAKER(4_sized, void* p = malloc(4);)
+
+static int set_data[] = { 1, 2, 3, 4, 5, 6, 7, 21, 22, 23, 24, 25, 26, 27 };
+static set live_leak_set(set_data, set_data+7);
+static const set live_leak_const_set(set_data, set_data+14);
+
+REGISTER_OBJ_MAKER(set,
+  set* p = new(initialized) set(set_data, set_data + 13);
+)
+
+class ClassA {
+ public:
+  explicit ClassA(int a) : ptr(NULL) { }
+  mutable char* ptr;
+};
+static const ClassA live_leak_mutable(1);
+
+template
+class TClass {
+ public:
+  explicit TClass(int a) : ptr(NULL) { }
+  mutable C val;
+  mutable C* ptr;
+};
+static const TClass > live_leak_templ_mutable(1);
+
+class ClassB {
+ public:
+  ClassB() { }
+  char b[7];
+  virtual void f() { }
+  virtual ~ClassB() { }
+};
+
+class ClassB2 {
+ public:
+  ClassB2() { }
+  char b2[11];
+  virtual void f2() { }
+  virtual ~ClassB2() { }
+};
+
+class ClassD1 : public ClassB {
+  char d1[15];
+  virtual void f() { }
+};
+
+class ClassD2 : public ClassB2 {
+  char d2[19];
+  virtual void f2() { }
+};
+
+class ClassD : public ClassD1, public ClassD2 {
+  char d[3];
+  virtual void f() { }
+  virtual void f2() { }
+};
+
+// to test pointers to objects of base subclasses:
+
+REGISTER_OBJ_MAKER(B,  ClassB*  p = new(initialized) ClassB;)
+REGISTER_OBJ_MAKER(D1, ClassD1* p = new(initialized) ClassD1;)
+REGISTER_OBJ_MAKER(D2, ClassD2* p = new(initialized) ClassD2;)
+REGISTER_OBJ_MAKER(D,  ClassD*  p = new(initialized) ClassD;)
+
+REGISTER_OBJ_MAKER(D1_as_B,  ClassB*  p = new(initialized) ClassD1;)
+REGISTER_OBJ_MAKER(D2_as_B2, ClassB2* p = new(initialized) ClassD2;)
+REGISTER_OBJ_MAKER(D_as_B,   ClassB*  p = new(initialized)  ClassD;)
+REGISTER_OBJ_MAKER(D_as_D1,  ClassD1* p = new(initialized) ClassD;)
+// inside-object pointers:
+REGISTER_OBJ_MAKER(D_as_B2,  ClassB2* p = new(initialized) ClassD;)
+REGISTER_OBJ_MAKER(D_as_D2,  ClassD2* p = new(initialized) ClassD;)
+
+class InterfaceA {
+ public:
+  virtual void A() = 0;
+  virtual ~InterfaceA() { }
+ protected:
+  InterfaceA() { }
+};
+
+class InterfaceB {
+ public:
+  virtual void B() = 0;
+  virtual ~InterfaceB() { }
+ protected:
+  InterfaceB() { }
+};
+
+class InterfaceC : public InterfaceA {
+ public:
+  virtual void C() = 0;
+  virtual ~InterfaceC() { }
+ protected:
+  InterfaceC() { }
+};
+
+class ClassMltD1 : public ClassB, public InterfaceB, public InterfaceC {
+ public:
+  char d1[11];
+  virtual void f() { }
+  virtual void A() { }
+  virtual void B() { }
+  virtual void C() { }
+};
+
+class ClassMltD2 : public InterfaceA, public InterfaceB, public ClassB {
+ public:
+  char d2[15];
+  virtual void f() { }
+  virtual void A() { }
+  virtual void B() { }
+};
+
+// to specifically test heap reachability under
+// inerface-only multiple inheritance (some use inside-object pointers):
+REGISTER_OBJ_MAKER(MltD1,       ClassMltD1* p = new(initialized) ClassMltD1;)
+REGISTER_OBJ_MAKER(MltD1_as_B,  ClassB*     p = new(initialized) ClassMltD1;)
+REGISTER_OBJ_MAKER(MltD1_as_IA, InterfaceA* p = new(initialized) ClassMltD1;)
+REGISTER_OBJ_MAKER(MltD1_as_IB, InterfaceB* p = new(initialized) ClassMltD1;)
+REGISTER_OBJ_MAKER(MltD1_as_IC, InterfaceC* p = new(initialized) ClassMltD1;)
+
+REGISTER_OBJ_MAKER(MltD2,       ClassMltD2* p = new(initialized) ClassMltD2;)
+REGISTER_OBJ_MAKER(MltD2_as_B,  ClassB*     p = new(initialized) ClassMltD2;)
+REGISTER_OBJ_MAKER(MltD2_as_IA, InterfaceA* p = new(initialized) ClassMltD2;)
+REGISTER_OBJ_MAKER(MltD2_as_IB, InterfaceB* p = new(initialized) ClassMltD2;)
+
+// to mimic UnicodeString defined in third_party/icu,
+// which store a platform-independent-sized refcount in the first
+// few bytes and keeps a pointer pointing behind the refcount.
+REGISTER_OBJ_MAKER(unicode_string,
+  char* p = new char[sizeof(uint32) * 10];
+  p += sizeof(uint32);
+)
+// similar, but for platform-dependent-sized refcount
+REGISTER_OBJ_MAKER(ref_counted,
+  char* p = new char[sizeof(int) * 20];
+  p += sizeof(int);
+)
+
+struct Nesting {
+  struct Inner {
+    Nesting* parent;
+    Inner(Nesting* p) : parent(p) {}
+  };
+  Inner i0;
+  char n1[5];
+  Inner i1;
+  char n2[11];
+  Inner i2;
+  char n3[27];
+  Inner i3;
+  Nesting() : i0(this), i1(this), i2(this), i3(this) {}
+};
+
+// to test inside-object pointers pointing at objects nested into heap objects:
+REGISTER_OBJ_MAKER(nesting_i0, Nesting::Inner* p = &((new Nesting())->i0);)
+REGISTER_OBJ_MAKER(nesting_i1, Nesting::Inner* p = &((new Nesting())->i1);)
+REGISTER_OBJ_MAKER(nesting_i2, Nesting::Inner* p = &((new Nesting())->i2);)
+REGISTER_OBJ_MAKER(nesting_i3, Nesting::Inner* p = &((new Nesting())->i3);)
+
+void (* volatile init_forcer)(...);
+
+// allocate many objects reachable from global data
+static void TestHeapLeakCheckerLiveness() {
+  live_leak_mutable.ptr = new(initialized) char[77];
+  live_leak_templ_mutable.ptr = new(initialized) Array();
+  live_leak_templ_mutable.val = Array();
+
+  // smart compiler may see that live_leak_mutable is not used
+  // anywhere so .ptr assignment is not used.
+  //
+  // We force compiler to assume that it is used by having function
+  // variable (set to 0 which hopefully won't be known to compiler)
+  // which gets address of those objects. So compiler has to assume
+  // that .ptr is used.
+  if (init_forcer) {
+    init_forcer(&live_leak_mutable, &live_leak_templ_mutable);
+  }
+  TestObjMakers();
+}
+
+// ========================================================================= //
+
+// Get address (PC value) following the mmap call into addr_after_mmap_call
+static void* Mmapper(uintptr_t* addr_after_mmap_call) {
+  void* r = mmap(NULL, 100, PROT_READ|PROT_WRITE,
+                 MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+  // Get current PC value into addr_after_mmap_call
+  void* stack[1];
+  CHECK_EQ(GetStackTrace(stack, 1, 0), 1);
+  *addr_after_mmap_call = reinterpret_cast(stack[0]);
+  sleep(0);  // undo -foptimize-sibling-calls
+  return r;
+}
+
+// On PPC64 the stacktrace returned by GetStatcTrace contains the function
+// address from .text segment while function pointers points to ODP entries.
+// The following code decodes the ODP to get the actual symbol address.
+#if defined(__linux) && defined(__PPC64__) && (_CALL_ELF != 2)
+static inline uintptr_t GetFunctionAddress (void* (*func)(uintptr_t*))
+{
+  struct odp_entry_t {
+    unsigned long int symbol;
+    unsigned long int toc;
+    unsigned long int env;
+  } *odp_entry = reinterpret_cast(func);
+
+  return static_cast(odp_entry->symbol);
+}
+#else
+static inline uintptr_t GetFunctionAddress (void* (*func)(uintptr_t*))
+{
+  return reinterpret_cast(func);
+}
+#endif
+
+// to trick complier into preventing inlining
+static void* (* volatile mmapper_addr)(uintptr_t* addr) = &Mmapper;
+
+// TODO(maxim): copy/move this to memory_region_map_unittest
+// TODO(maxim): expand this test to include mmap64, mremap and sbrk calls.
+static void VerifyMemoryRegionMapStackGet() {
+  uintptr_t caller_addr_limit;
+  void* addr = (*mmapper_addr)(&caller_addr_limit);
+  uintptr_t caller = 0;
+  { MemoryRegionMap::LockHolder l;
+    for (MemoryRegionMap::RegionIterator
+           i = MemoryRegionMap::BeginRegionLocked();
+           i != MemoryRegionMap::EndRegionLocked(); ++i) {
+      if (i->start_addr == reinterpret_cast(addr)) {
+        CHECK_EQ(caller, 0);
+        caller = i->caller();
+      }
+    }
+  }
+  // caller must point into Mmapper function:
+  if (!(GetFunctionAddress(mmapper_addr) <= caller  &&
+        caller < caller_addr_limit)) {
+    LOGF << std::hex << "0x" << caller
+         << " does not seem to point into code of function Mmapper at "
+         << "0x" << reinterpret_cast(mmapper_addr)
+         << "! Stack frame collection must be off in MemoryRegionMap!";
+    LOG(FATAL, "\n");
+  }
+  munmap(addr, 100);
+}
+
+static void* Mallocer(uintptr_t* addr_after_malloc_call) {
+  void* r = malloc(100);
+  sleep(0);  // undo -foptimize-sibling-calls
+  // Get current PC value into addr_after_malloc_call
+  void* stack[1];
+  CHECK_EQ(GetStackTrace(stack, 1, 0), 1);
+  *addr_after_malloc_call = reinterpret_cast(stack[0]);
+  return r;
+}
+
+// to trick compiler into preventing inlining
+static void* (* volatile mallocer_addr)(uintptr_t* addr) = &Mallocer;
+
+// non-static for friendship with HeapProfiler
+// TODO(maxim): expand this test to include
+// realloc, calloc, memalign, valloc, pvalloc, new, and new[].
+extern void VerifyHeapProfileTableStackGet() {
+  uintptr_t caller_addr_limit;
+  void* addr = (*mallocer_addr)(&caller_addr_limit);
+  uintptr_t caller =
+    reinterpret_cast(HeapLeakChecker::GetAllocCaller(addr));
+  // caller must point into Mallocer function:
+  if (!(GetFunctionAddress(mallocer_addr) <= caller  &&
+        caller < caller_addr_limit)) {
+    LOGF << std::hex << "0x" << caller
+         << " does not seem to point into code of function Mallocer at "
+         << "0x" << reinterpret_cast(mallocer_addr)
+         << "! Stack frame collection must be off in heap profiler!";
+    LOG(FATAL, "\n");
+  }
+  free(addr);
+}
+
+// ========================================================================= //
+
+static void MakeALeak(void** arr) {
+  PreventHeapReclaiming(10 * sizeof(int));
+  void* a = new(initialized) int[10];
+  Hide(&a);
+  *arr = a;
+}
+
+// Helper to do 'return 0;' inside main(): insted we do 'return Pass();'
+static int Pass() {
+  fprintf(stdout, "PASS\n");
+  g_have_exited_main = true;
+  return 0;
+}
+
+int main(int argc, char** argv) {
+  run_hidden_ptr = DoRunHidden;
+  wipe_stack_ptr = DoWipeStack;
+  if (!HeapLeakChecker::IsActive()) {
+    CHECK_EQ(FLAGS_heap_check, "");
+    LOG(WARNING, "HeapLeakChecker got turned off; we won't test much...");
+  } else {
+    VerifyMemoryRegionMapStackGet();
+    VerifyHeapProfileTableStackGet();
+  }
+
+  KeyInit();
+
+  // glibc 2.4, on x86_64 at least, has a lock-ordering bug, which
+  // means deadlock is possible when one thread calls dl_open at the
+  // same time another thread is calling dl_iterate_phdr.  libunwind
+  // calls dl_iterate_phdr, and TestLibCAllocate calls dl_open (or the
+  // various syscalls in it do), at least the first time it's run.
+  // To avoid the deadlock, we run TestLibCAllocate once before getting
+  // multi-threaded.
+  // TODO(csilvers): once libc is fixed, or libunwind can work around it,
+  //                 get rid of this early call.  We *want* our test to
+  //                 find potential problems like this one!
+  TestLibCAllocate();
+
+  if (FLAGS_interfering_threads) {
+    RunHeapBusyThreads();  // add interference early
+  }
+  TestLibCAllocate();
+
+  LOGF << "In main(): heap_check=" << FLAGS_heap_check << endl;
+
+  CHECK(HeapLeakChecker::NoGlobalLeaks());  // so far, so good
+
+  if (FLAGS_test_leak) {
+    void* arr;
+    RunHidden(NewCallback(MakeALeak, &arr));
+    Use(&arr);
+    LogHidden("Leaking", arr);
+    if (FLAGS_test_cancel_global_check) {
+      HeapLeakChecker::CancelGlobalCheck();
+    } else {
+      // Verify we can call NoGlobalLeaks repeatedly without deadlocking
+      HeapLeakChecker::NoGlobalLeaks();
+      HeapLeakChecker::NoGlobalLeaks();
+    }
+    return Pass();
+      // whole-program leak-check should (with very high probability)
+      // catch the leak of arr (10 * sizeof(int) bytes)
+      // (when !FLAGS_test_cancel_global_check)
+  }
+
+  if (FLAGS_test_loop_leak) {
+    void* arr1;
+    void* arr2;
+    RunHidden(NewCallback(MakeDeathLoop, &arr1, &arr2));
+    Use(&arr1);
+    Use(&arr2);
+    LogHidden("Loop leaking", arr1);
+    LogHidden("Loop leaking", arr2);
+    if (FLAGS_test_cancel_global_check) {
+      HeapLeakChecker::CancelGlobalCheck();
+    } else {
+      // Verify we can call NoGlobalLeaks repeatedly without deadlocking
+      HeapLeakChecker::NoGlobalLeaks();
+      HeapLeakChecker::NoGlobalLeaks();
+    }
+    return Pass();
+      // whole-program leak-check should (with very high probability)
+      // catch the leak of arr1 and arr2 (4 * sizeof(void*) bytes)
+      // (when !FLAGS_test_cancel_global_check)
+  }
+
+  if (FLAGS_test_register_leak) {
+    // make us fail only where the .sh test expects:
+    Pause();
+    for (int i = 0; i < 100; ++i) {  // give it some time to crash
+      CHECK(HeapLeakChecker::NoGlobalLeaks());
+      Pause();
+    }
+    return Pass();
+  }
+
+  TestHeapLeakCheckerLiveness();
+
+  HeapLeakChecker heap_check("all");
+
+  TestHiddenPointer();
+
+  TestHeapLeakChecker();
+  Pause();
+  TestLeakButTotalsMatch();
+  Pause();
+
+  TestHeapLeakCheckerDeathSimple();
+  Pause();
+  TestHeapLeakCheckerDeathLoop();
+  Pause();
+  TestHeapLeakCheckerDeathInverse();
+  Pause();
+  TestHeapLeakCheckerDeathNoLeaks();
+  Pause();
+  TestHeapLeakCheckerDeathCountLess();
+  Pause();
+  TestHeapLeakCheckerDeathCountMore();
+  Pause();
+
+  TestHeapLeakCheckerDeathTrick();
+  Pause();
+
+  CHECK(HeapLeakChecker::NoGlobalLeaks());  // so far, so good
+
+  TestHeapLeakCheckerNoFalsePositives();
+  Pause();
+
+  TestHeapLeakCheckerDisabling();
+  Pause();
+
+  TestSTLAlloc();
+  Pause();
+  TestSTLAllocInverse();
+  Pause();
+
+  // Test that various STL allocators work.  Some of these are redundant, but
+  // we don't know how STL might change in the future.  For example,
+  // http://wiki/Main/StringNeStdString.
+#define DTSL(a) { DirectTestSTLAlloc(a, #a); \
+                  Pause(); }
+  DTSL(std::allocator());
+  DTSL(std::allocator());
+  DTSL(std::string().get_allocator());
+  DTSL(string().get_allocator());
+  DTSL(vector().get_allocator());
+  DTSL(vector().get_allocator());
+  DTSL(vector >().get_allocator());
+  DTSL(vector().get_allocator());
+  DTSL((map().get_allocator()));
+  DTSL((map().get_allocator()));
+  DTSL(set().get_allocator());
+#undef DTSL
+
+  TestLibCAllocate();
+  Pause();
+
+  CHECK(HeapLeakChecker::NoGlobalLeaks());  // so far, so good
+
+  Pause();
+
+  if (!FLAGS_maybe_stripped) {
+    CHECK(heap_check.SameHeap());
+  } else {
+    WARN_IF(heap_check.SameHeap() != true,
+            "overall leaks are caught; we must be using a stripped binary");
+  }
+
+  CHECK(HeapLeakChecker::NoGlobalLeaks());  // so far, so good
+
+  return Pass();
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker_unittest.sh b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker_unittest.sh
new file mode 100755
index 000000000..3c9c0e96f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-checker_unittest.sh
@@ -0,0 +1,89 @@
+#!/bin/sh
+
+# Copyright (c) 2005, Google Inc.
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# ---
+# Author: Craig Silverstein
+#
+# Runs the heap-checker unittest with various environment variables.
+# This is necessary because we turn on features like the heap profiler
+# and heap checker via environment variables.  This test makes sure
+# they all play well together.
+
+# We expect BINDIR and PPROF_PATH to be set in the environment.
+# If not, we set them to some reasonable values
+BINDIR="${BINDIR:-.}"
+PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}"
+
+if [ "x$1" = "x-h" -o "$1" = "x--help" ]; then
+  echo "USAGE: $0 [unittest dir] [path to pprof]"
+  echo "       By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH"
+  exit 1
+fi
+
+HEAP_CHECKER="${1:-$BINDIR/heap-checker_unittest}"
+PPROF_PATH="${2:-$PPROF_PATH}"
+
+TMPDIR=/tmp/heap_check_info
+rm -rf $TMPDIR || exit 2
+mkdir $TMPDIR || exit 3
+
+# $1: value of heap-check env. var.
+run_check() {
+    export PPROF_PATH="$PPROF_PATH"
+    [ -n "$1" ] && export HEAPCHECK="$1" || unset HEAPPROFILE
+
+    echo -n "Testing $HEAP_CHECKER with HEAPCHECK=$1 ... "
+    if $HEAP_CHECKER > $TMPDIR/output 2>&1; then
+      echo "OK"
+    else
+      echo "FAILED"
+      echo "Output from the failed run:"
+      echo "----"
+      cat $TMPDIR/output
+      echo "----"      
+      exit 4
+    fi
+
+    # If we set HEAPPROFILE, then we expect it to actually have emitted
+    # a profile.  Check that it did.
+    if [ -n "$HEAPPROFILE" ]; then
+      [ -e "$HEAPPROFILE.0001.heap" ] || exit 5
+    fi
+}
+
+run_check ""
+run_check "local"
+run_check "normal"
+run_check "strict"
+
+rm -rf $TMPDIR      # clean up
+
+echo "PASS"
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/heap-profiler_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-profiler_unittest.cc
new file mode 100644
index 000000000..addb5f17f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-profiler_unittest.cc
@@ -0,0 +1,168 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// A small program that just exercises our heap profiler by allocating
+// memory and letting the heap-profiler emit a profile.  We don't test
+// threads (TODO).  By itself, this unittest tests that the heap-profiler
+// doesn't crash on simple programs, but its output can be analyzed by
+// another testing script to actually verify correctness.  See, eg,
+// heap-profiler_unittest.sh.
+
+#include "config_for_unittests.h"
+#include 
+#include 
+#include                   // for mkdir()
+#include                // for mkdir() on freebsd and os x
+#ifdef HAVE_UNISTD_H
+#include                  // for fork()
+#endif
+#include                // for wait()
+#include 
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include 
+
+using std::string;
+
+static const int kMaxCount = 100000;
+int* g_array[kMaxCount];              // an array of int-vectors
+
+static ATTRIBUTE_NOINLINE void Allocate(int start, int end, int size) {
+  // NOTE: we're using this to prevent gcc 5 from merging otherwise
+  // identical Allocate & Allocate2 functions.
+  VLOG(10, "Allocate");
+  for (int i = start; i < end; ++i) {
+    if (i < kMaxCount)
+      g_array[i] = new int[size];
+  }
+}
+
+static ATTRIBUTE_NOINLINE void Allocate2(int start, int end, int size) {
+  VLOG(10, "Allocate2");
+  for (int i = start; i < end; ++i) {
+    if (i < kMaxCount)
+      g_array[i] = new int[size];
+  }
+}
+
+static void Deallocate(int start, int end) {
+  for (int i = start; i < end; ++i) {
+    delete[] g_array[i];
+    g_array[i] = 0;
+  }
+}
+
+static void TestHeapProfilerStartStopIsRunning() {
+  // If you run this with whole-program heap-profiling on, than
+  // IsHeapProfilerRunning should return true.
+  if (!IsHeapProfilerRunning()) {
+    const char* tmpdir = getenv("TMPDIR");
+    if (tmpdir == NULL)
+      tmpdir = "/tmp";
+    mkdir(tmpdir, 0755);     // if necessary
+    HeapProfilerStart((string(tmpdir) + "/start_stop").c_str());
+    CHECK(IsHeapProfilerRunning());
+
+    Allocate(0, 40, 100);
+    Deallocate(0, 40);
+
+    HeapProfilerStop();
+    CHECK(!IsHeapProfilerRunning());
+  }
+}
+
+static void TestDumpHeapProfiler() {
+  // If you run this with whole-program heap-profiling on, than
+  // IsHeapProfilerRunning should return true.
+  if (!IsHeapProfilerRunning()) {
+    const char* tmpdir = getenv("TMPDIR");
+    if (tmpdir == NULL)
+      tmpdir = "/tmp";
+    mkdir(tmpdir, 0755);     // if necessary
+    HeapProfilerStart((string(tmpdir) + "/dump").c_str());
+    CHECK(IsHeapProfilerRunning());
+
+    Allocate(0, 40, 100);
+    Deallocate(0, 40);
+
+    char* output = GetHeapProfile();
+    free(output);
+    HeapProfilerStop();
+  }
+}
+
+
+int main(int argc, char** argv) {
+  if (argc > 2 || (argc == 2 && argv[1][0] == '-')) {
+    printf("USAGE: %s [number of children to fork]\n", argv[0]);
+    exit(0);
+  }
+  int num_forks = 0;
+  if (argc == 2) {
+    num_forks = atoi(argv[1]);
+  }
+
+  TestHeapProfilerStartStopIsRunning();
+  TestDumpHeapProfiler();
+
+  Allocate(0, 40, 100);
+  Deallocate(0, 40);
+
+  Allocate(0, 40, 100);
+  Allocate(0, 40, 100);
+  Allocate2(40, 400, 1000);
+  Allocate2(400, 1000, 10000);
+  Deallocate(0, 1000);
+
+  Allocate(0, 100, 100000);
+  Deallocate(0, 10);
+  Deallocate(10, 20);
+  Deallocate(90, 100);
+  Deallocate(20, 90);
+
+  while (num_forks-- > 0) {
+    switch (fork()) {
+      case -1:
+        printf("FORK failed!\n");
+        return 1;
+      case 0:             // child
+        return execl(argv[0], argv[0], NULL);   // run child with no args
+      default:
+        wait(NULL);       // we'll let the kids run one at a time
+    }
+  }
+
+  printf("DONE.\n");
+
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/heap-profiler_unittest.sh b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-profiler_unittest.sh
new file mode 100755
index 000000000..91af04f03
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/heap-profiler_unittest.sh
@@ -0,0 +1,147 @@
+#!/bin/sh
+
+# Copyright (c) 2005, Google Inc.
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# ---
+# Author: Craig Silverstein
+#
+# Runs the heap-profiler unittest and makes sure the profile looks appropriate.
+#
+# We run under the assumption that if $HEAP_PROFILER is run with --help,
+# it prints a usage line of the form
+#   USAGE:  [...]
+#
+# This is because libtool sometimes turns the 'executable' into a
+# shell script which runs an actual binary somewhere else.
+
+# We expect BINDIR and PPROF_PATH to be set in the environment.
+# If not, we set them to some reasonable values
+BINDIR="${BINDIR:-.}"
+PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}"
+
+if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then
+  echo "USAGE: $0 [unittest dir] [path to pprof]"
+  echo "       By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH"
+  exit 1
+fi
+
+HEAP_PROFILER="${1:-$BINDIR/heap-profiler_unittest}"
+PPROF="${2:-$PPROF_PATH}"
+TEST_TMPDIR=`mktemp -d /tmp/heap-profiler_unittest.XXXXXX`
+
+# It's meaningful to the profiler, so make sure we know its state
+unset HEAPPROFILE
+
+num_failures=0
+
+# Given one profile (to check the contents of that profile) or two
+# profiles (to check the diff between the profiles), and a function
+# name, verify that the function name takes up at least 90% of the
+# allocated memory.  The function name is actually specified first.
+VerifyMemFunction() {
+  function="$1"
+  shift
+
+  # get program name.  Note we have to unset HEAPPROFILE so running
+  # help doesn't overwrite existing profiles.
+  exec=`unset HEAPPROFILE; $HEAP_PROFILER --help | awk '{print $2; exit;}'`
+
+  if [ $# = 2 ]; then
+    [ -f "$1" ] || { echo "Profile not found: $1"; exit 1; }
+    [ -f "$2" ] || { echo "Profile not found: $2"; exit 1; }
+    $PPROF --base="$1" $exec "$2" >"$TEST_TMPDIR/output.pprof" 2>&1
+  else
+    [ -f "$1" ] || { echo "Profile not found: $1"; exit 1; }
+    $PPROF $exec "$1" >"$TEST_TMPDIR/output.pprof" 2>&1
+  fi
+
+  cat "$TEST_TMPDIR/output.pprof" \
+      | tr -d % | awk '$6 ~ /^'$function'$/ && $2 > 90 {exit 1;}'
+  if [ $? != 1 ]; then
+    echo
+    echo "--- Test failed for $function: didn't account for 90% of executable memory"
+    echo "--- Program output:"
+    cat "$TEST_TMPDIR/output"
+    echo "--- pprof output:"
+    cat "$TEST_TMPDIR/output.pprof"
+    echo "---"
+    num_failures=`expr $num_failures + 1`
+  fi
+}
+
+VerifyOutputContains() {
+  text="$1"
+
+  if ! grep "$text" "$TEST_TMPDIR/output" >/dev/null 2>&1; then
+    echo "--- Test failed: output does not contain '$text'"
+    echo "--- Program output:"
+    cat "$TEST_TMPDIR/output"
+    echo "---"
+    num_failures=`expr $num_failures + 1`
+  fi
+}
+
+HEAPPROFILE="$TEST_TMPDIR/test"
+HEAP_PROFILE_INUSE_INTERVAL="10240"   # need this to be 10Kb
+HEAP_PROFILE_ALLOCATION_INTERVAL="$HEAP_PROFILE_INUSE_INTERVAL"
+HEAP_PROFILE_DEALLOCATION_INTERVAL="$HEAP_PROFILE_INUSE_INTERVAL"
+export HEAPPROFILE
+export HEAP_PROFILE_INUSE_INTERVAL
+export HEAP_PROFILE_ALLOCATION_INTERVAL
+export HEAP_PROFILE_DEALLOCATION_INTERVAL
+
+# We make the unittest run a child process, to test that the child
+# process doesn't try to write a heap profile as well and step on the
+# parent's toes.  If it does, we expect the parent-test to fail.
+$HEAP_PROFILER 1 >$TEST_TMPDIR/output 2>&1     # run program, with 1 child proc
+
+VerifyMemFunction Allocate2 "$HEAPPROFILE.1329.heap"
+VerifyMemFunction Allocate "$HEAPPROFILE.1448.heap" "$HEAPPROFILE.1548.heap"
+
+# Check the child process got to emit its own profile as well.
+VerifyMemFunction Allocate2 "$HEAPPROFILE"_*.1329.heap
+VerifyMemFunction Allocate "$HEAPPROFILE"_*.1448.heap "$HEAPPROFILE"_*.1548.heap
+
+# Make sure we logged both about allocating and deallocating memory
+VerifyOutputContains "62 MB allocated"
+VerifyOutputContains "62 MB freed"
+
+# Now try running without --heap_profile specified, to allow
+# testing of the HeapProfileStart/Stop functionality.
+$HEAP_PROFILER >"$TEST_TMPDIR/output2" 2>&1
+
+rm -rf $TEST_TMPDIR      # clean up
+
+if [ $num_failures = 0 ]; then
+  echo "PASS"
+else
+  echo "Tests finished with $num_failures failures"
+fi
+exit $num_failures
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/large_heap_fragmentation_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/large_heap_fragmentation_unittest.cc
new file mode 100644
index 000000000..08865997e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/large_heap_fragmentation_unittest.cc
@@ -0,0 +1,62 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This is a unit test for exercising fragmentation of large (over 1
+// meg) page spans. It makes sure that allocations/releases of
+// increasing memory chunks do not blowup memory
+// usage. See also https://code.google.com/p/gperftools/issues/detail?id=368
+
+
+#include 
+#include 
+#include 
+
+#include "base/logging.h"
+#include "common.h"
+#include 
+
+
+int main (int argc, char** argv) {
+  for (int pass = 1; pass <= 3; pass++) {
+    size_t size = 100*1024*1024;
+    while (size < 500*1024*1024) {
+      void *ptr = malloc(size);
+      free(ptr);
+      size += 20000;
+
+      size_t heap_size = static_cast(-1);
+      MallocExtension::instance()->GetNumericProperty("generic.heap_size",
+                                                      &heap_size);
+
+
+      CHECK_LT(heap_size, 1*1024*1024*1024);
+    }
+  }
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/low_level_alloc_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/low_level_alloc_unittest.cc
new file mode 100644
index 000000000..047444110
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/low_level_alloc_unittest.cc
@@ -0,0 +1,197 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2006, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// A test for low_level_alloc.cc
+
+#include 
+#include 
+#include "base/low_level_alloc.h"
+#include "base/logging.h"
+#include 
+
+using std::map;
+
+// a block of memory obtained from the allocator
+struct BlockDesc {
+  char *ptr;      // pointer to memory
+  int len;        // number of bytes
+  int fill;       // filled with data starting with this
+};
+
+// Check that the pattern placed in the block d
+// by RandomizeBlockDesc is still there.
+static void CheckBlockDesc(const BlockDesc &d) {
+  for (int i = 0; i != d.len; i++) {
+    CHECK((d.ptr[i] & 0xff) == ((d.fill + i) & 0xff));
+  }
+}
+
+// Fill the block "*d" with a pattern
+// starting with a random byte.
+static void RandomizeBlockDesc(BlockDesc *d) {
+  d->fill = rand() & 0xff;
+  for (int i = 0; i != d->len; i++) {
+    d->ptr[i] = (d->fill + i) & 0xff;
+  }
+}
+
+// Use to indicate to the malloc hooks that
+// this calls is from LowLevelAlloc.
+static bool using_low_level_alloc = false;
+
+// n times, toss a coin, and based on the outcome
+// either allocate a new block or deallocate an old block.
+// New blocks are placed in a map with a random key
+// and initialized with RandomizeBlockDesc().
+// If keys conflict, the older block is freed.
+// Old blocks are always checked with CheckBlockDesc()
+// before being freed.  At the end of the run,
+// all remaining allocated blocks are freed.
+// If use_new_arena is true, use a fresh arena, and then delete it.
+// If call_malloc_hook is true and user_arena is true,
+// allocations and deallocations are reported via the MallocHook
+// interface.
+static void Test(bool use_new_arena, bool call_malloc_hook, int n) {
+  typedef map AllocMap;
+  AllocMap allocated;
+  AllocMap::iterator it;
+  BlockDesc block_desc;
+  int rnd;
+  LowLevelAlloc::Arena *arena = 0;
+  if (use_new_arena) {
+    int32 flags = call_malloc_hook?  LowLevelAlloc::kCallMallocHook :  0;
+    arena = LowLevelAlloc::NewArena(flags, LowLevelAlloc::DefaultArena());
+  }
+  for (int i = 0; i != n; i++) {
+    if (i != 0 && i % 10000 == 0) {
+      printf(".");
+      fflush(stdout);
+    }
+
+    switch(rand() & 1) {      // toss a coin
+    case 0:     // coin came up heads: add a block
+      using_low_level_alloc = true;
+      block_desc.len = rand() & 0x3fff;
+      block_desc.ptr =
+        reinterpret_cast(
+                        arena == 0
+                        ? LowLevelAlloc::Alloc(block_desc.len)
+                        : LowLevelAlloc::AllocWithArena(block_desc.len, arena));
+      using_low_level_alloc = false;
+      RandomizeBlockDesc(&block_desc);
+      rnd = rand();
+      it = allocated.find(rnd);
+      if (it != allocated.end()) {
+        CheckBlockDesc(it->second);
+        using_low_level_alloc = true;
+        LowLevelAlloc::Free(it->second.ptr);
+        using_low_level_alloc = false;
+        it->second = block_desc;
+      } else {
+        allocated[rnd] = block_desc;
+      }
+      break;
+    case 1:     // coin came up tails: remove a block
+      it = allocated.begin();
+      if (it != allocated.end()) {
+        CheckBlockDesc(it->second);
+        using_low_level_alloc = true;
+        LowLevelAlloc::Free(it->second.ptr);
+        using_low_level_alloc = false;
+        allocated.erase(it);
+      }
+      break;
+    }
+  }
+  // remove all remaniing blocks
+  while ((it = allocated.begin()) != allocated.end()) {
+    CheckBlockDesc(it->second);
+    using_low_level_alloc = true;
+    LowLevelAlloc::Free(it->second.ptr);
+    using_low_level_alloc = false;
+    allocated.erase(it);
+  }
+  if (use_new_arena) {
+    CHECK(LowLevelAlloc::DeleteArena(arena));
+  }
+}
+
+// used for counting allocates and frees
+static int32 allocates;
+static int32 frees;
+
+// called on each alloc if kCallMallocHook specified
+static void AllocHook(const void *p, size_t size) {
+  if (using_low_level_alloc) {
+    allocates++;
+  }
+}
+
+// called on each free if kCallMallocHook specified
+static void FreeHook(const void *p) {
+  if (using_low_level_alloc) {
+    frees++;
+  }
+}
+
+int main(int argc, char *argv[]) {
+  // This is needed by maybe_threads_unittest.sh, which parses argv[0]
+  // to figure out what directory low_level_alloc_unittest is in.
+  if (argc != 1) {
+    fprintf(stderr, "USAGE: %s\n", argv[0]);
+    return 1;
+  }
+
+  CHECK(MallocHook::AddNewHook(&AllocHook));
+  CHECK(MallocHook::AddDeleteHook(&FreeHook));
+  CHECK_EQ(allocates, 0);
+  CHECK_EQ(frees, 0);
+  Test(false, false, 50000);
+  CHECK_NE(allocates, 0);   // default arena calls hooks
+  CHECK_NE(frees, 0);
+  for (int i = 0; i != 16; i++) {
+    bool call_hooks = ((i & 1) == 1);
+    allocates = 0;
+    frees = 0;
+    Test(true, call_hooks, 15000);
+    if (call_hooks) {
+      CHECK_GT(allocates, 5000); // arena calls hooks
+      CHECK_GT(frees, 5000);
+    } else {
+      CHECK_EQ(allocates, 0);    // arena doesn't call hooks
+      CHECK_EQ(frees, 0);
+    }
+  }
+  printf("\nPASS\n");
+  CHECK(MallocHook::RemoveNewHook(&AllocHook));
+  CHECK(MallocHook::RemoveDeleteHook(&FreeHook));
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_extension_c_test.c b/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_extension_c_test.c
new file mode 100644
index 000000000..2868b9c37
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_extension_c_test.c
@@ -0,0 +1,182 @@
+/* -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Craig Silverstein
+ *
+ * This tests the c shims: malloc_extension_c.h and malloc_hook_c.h.
+ * Mostly, we'll just care that these shims compile under gcc
+ * (*not* g++!)
+ *
+ * NOTE: this is C code, not C++ code!
+ */
+
+#include 
+#include 
+#include    /* for size_t */
+#include 
+#include 
+
+#define FAIL(msg) do {                          \
+  fprintf(stderr, "FATAL ERROR: %s\n", msg);    \
+  exit(1);                                      \
+} while (0)
+
+static int g_new_hook_calls = 0;
+static int g_delete_hook_calls = 0;
+
+void TestNewHook(const void* ptr, size_t size) {
+  g_new_hook_calls++;
+}
+
+void TestDeleteHook(const void* ptr) {
+  g_delete_hook_calls++;
+}
+
+static
+void *forced_malloc(size_t size)
+{
+  extern void *tc_malloc(size_t);
+  void *rv = tc_malloc(size);
+  if (!rv) {
+    FAIL("malloc is not supposed to fail here");
+  }
+  return rv;
+}
+
+void TestMallocHook(void) {
+  /* TODO(csilvers): figure out why we get:
+   * E0100 00:00:00.000000  7383 malloc_hook.cc:244] RAW: google_malloc section is missing, thus InHookCaller is broken!
+   */
+#if 0
+  void* result[5];
+
+  if (MallocHook_GetCallerStackTrace(result, sizeof(result)/sizeof(*result),
+                                     0) < 2) {  /* should have this and main */
+    FAIL("GetCallerStackTrace failed");
+  }
+#endif
+
+  if (!MallocHook_AddNewHook(&TestNewHook)) {
+    FAIL("Failed to add new hook");
+  }
+  if (!MallocHook_AddDeleteHook(&TestDeleteHook)) {
+    FAIL("Failed to add delete hook");
+  }
+
+  free(forced_malloc(10));
+  free(forced_malloc(20));
+  if (g_new_hook_calls != 2) {
+    FAIL("Wrong number of calls to the new hook");
+  }
+  if (g_delete_hook_calls != 2) {
+    FAIL("Wrong number of calls to the delete hook");
+  }
+  if (!MallocHook_RemoveNewHook(&TestNewHook)) {
+    FAIL("Failed to remove new hook");
+  }
+  if (!MallocHook_RemoveDeleteHook(&TestDeleteHook)) {
+    FAIL("Failed to remove delete hook");
+  }
+
+  free(forced_malloc(10));
+  free(forced_malloc(20));
+  if (g_new_hook_calls != 2) {
+    FAIL("Wrong number of calls to the new hook");
+  }
+
+  MallocHook_SetNewHook(&TestNewHook);
+  MallocHook_SetDeleteHook(&TestDeleteHook);
+
+  free(forced_malloc(10));
+  free(forced_malloc(20));
+  if (g_new_hook_calls != 4) {
+    FAIL("Wrong number of calls to the singular new hook");
+  }
+
+  if (MallocHook_SetNewHook(NULL) == NULL) {
+    FAIL("Failed to set new hook");
+  }
+  if (MallocHook_SetDeleteHook(NULL) == NULL) {
+    FAIL("Failed to set delete hook");
+  }
+}
+
+void TestMallocExtension(void) {
+  int blocks;
+  size_t total;
+  int hist[64];
+  char buffer[200];
+  char* x = (char*)malloc(10);
+
+  MallocExtension_VerifyAllMemory();
+  MallocExtension_VerifyMallocMemory(x);
+  MallocExtension_MallocMemoryStats(&blocks, &total, hist);
+  MallocExtension_GetStats(buffer, sizeof(buffer));
+  if (!MallocExtension_GetNumericProperty("generic.current_allocated_bytes",
+                                          &total)) {
+    FAIL("GetNumericProperty failed for generic.current_allocated_bytes");
+  }
+  if (total < 10) {
+    FAIL("GetNumericProperty had bad return for generic.current_allocated_bytes");
+  }
+  if (!MallocExtension_GetNumericProperty("generic.current_allocated_bytes",
+                                          &total)) {
+    FAIL("GetNumericProperty failed for generic.current_allocated_bytes");
+  }
+  MallocExtension_MarkThreadIdle();
+  MallocExtension_MarkThreadBusy();
+  MallocExtension_ReleaseToSystem(1);
+  MallocExtension_ReleaseFreeMemory();
+  if (MallocExtension_GetEstimatedAllocatedSize(10) < 10) {
+    FAIL("GetEstimatedAllocatedSize returned a bad value (too small)");
+  }
+  if (MallocExtension_GetAllocatedSize(x) < 10) {
+    FAIL("GetEstimatedAllocatedSize returned a bad value (too small)");
+  }
+  if (MallocExtension_GetOwnership(x) != MallocExtension_kOwned) {
+    FAIL("DidAllocatePtr returned a bad value (kNotOwned)");
+  }
+  /* TODO(csilvers): this relies on undocumented behavior that
+     GetOwnership works on stack-allocated variables.  Use a better test. */
+  if (MallocExtension_GetOwnership(hist) != MallocExtension_kNotOwned) {
+    FAIL("DidAllocatePtr returned a bad value (kOwned)");
+  }
+
+  free(x);
+}
+
+int main(int argc, char** argv) {
+  TestMallocHook();
+  TestMallocExtension();
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_extension_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_extension_test.cc
new file mode 100644
index 000000000..657077239
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_extension_test.cc
@@ -0,0 +1,98 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// Simple test of malloc_extension.  Includes test of C shims.
+
+#include "config_for_unittests.h"
+#include 
+#include 
+#include "base/logging.h"
+#include 
+#include 
+
+int main(int argc, char** argv) {
+  void* a = malloc(1000);
+
+  size_t cxx_bytes_used, c_bytes_used;
+  ASSERT_TRUE(MallocExtension::instance()->GetNumericProperty(
+      "generic.current_allocated_bytes", &cxx_bytes_used));
+  ASSERT_TRUE(MallocExtension_GetNumericProperty(
+      "generic.current_allocated_bytes", &c_bytes_used));
+  ASSERT_GT(cxx_bytes_used, 1000);
+  ASSERT_EQ(cxx_bytes_used, c_bytes_used);
+
+  ASSERT_TRUE(MallocExtension::instance()->VerifyAllMemory());
+  ASSERT_TRUE(MallocExtension_VerifyAllMemory());
+
+  ASSERT_EQ(MallocExtension::kOwned,
+            MallocExtension::instance()->GetOwnership(a));
+  // TODO(csilvers): this relies on undocumented behavior that
+  // GetOwnership works on stack-allocated variables.  Use a better test.
+  ASSERT_EQ(MallocExtension::kNotOwned,
+            MallocExtension::instance()->GetOwnership(&cxx_bytes_used));
+  ASSERT_EQ(MallocExtension::kNotOwned,
+            MallocExtension::instance()->GetOwnership(NULL));
+  ASSERT_GE(MallocExtension::instance()->GetAllocatedSize(a), 1000);
+  // This is just a sanity check.  If we allocated too much, tcmalloc is broken
+  ASSERT_LE(MallocExtension::instance()->GetAllocatedSize(a), 5000);
+  ASSERT_GE(MallocExtension::instance()->GetEstimatedAllocatedSize(1000), 1000);
+
+  for (int i = 0; i < 10; ++i) {
+    void *p = malloc(i);
+    ASSERT_GE(MallocExtension::instance()->GetAllocatedSize(p),
+             MallocExtension::instance()->GetEstimatedAllocatedSize(i));
+    free(p);
+  }
+
+  // Check the c-shim version too.
+  ASSERT_EQ(MallocExtension_kOwned, MallocExtension_GetOwnership(a));
+  ASSERT_EQ(MallocExtension_kNotOwned,
+            MallocExtension_GetOwnership(&cxx_bytes_used));
+  ASSERT_EQ(MallocExtension_kNotOwned, MallocExtension_GetOwnership(NULL));
+  ASSERT_GE(MallocExtension_GetAllocatedSize(a), 1000);
+  ASSERT_LE(MallocExtension_GetAllocatedSize(a), 5000);
+  ASSERT_GE(MallocExtension_GetEstimatedAllocatedSize(1000), 1000);
+
+  free(a);
+
+  // Verify that the .cc file and .h file have the same enum values.
+  ASSERT_EQ(static_cast(MallocExtension::kUnknownOwnership),
+            static_cast(MallocExtension_kUnknownOwnership));
+  ASSERT_EQ(static_cast(MallocExtension::kOwned),
+            static_cast(MallocExtension_kOwned));
+  ASSERT_EQ(static_cast(MallocExtension::kNotOwned),
+            static_cast(MallocExtension_kNotOwned));
+
+  printf("DONE\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_hook_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_hook_test.cc
new file mode 100644
index 000000000..a5cd8606a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/malloc_hook_test.cc
@@ -0,0 +1,367 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ----
+// Author: llib@google.com (Bill Clarke)
+
+#include "config_for_unittests.h"
+#include 
+#include 
+#ifdef HAVE_MMAP
+#include 
+#endif
+#ifdef HAVE_UNISTD_H
+#include     // for sleep()
+#endif
+#include 
+#include 
+#include 
+#include 
+#include "malloc_hook-inl.h"
+#include "base/logging.h"
+#include "base/simple_mutex.h"
+#include "base/sysinfo.h"
+#include "tests/testutil.h"
+
+// On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old
+// form of the name instead.
+#ifndef MAP_ANONYMOUS
+# define MAP_ANONYMOUS MAP_ANON
+#endif
+
+namespace {
+
+using std::string;
+using std::vector;
+
+vector g_testlist;  // the tests to run
+
+#define TEST(a, b)                                      \
+  struct Test_##a##_##b {                               \
+    Test_##a##_##b() { g_testlist.push_back(&Run); }    \
+    static void Run();                                  \
+  };                                                    \
+  static Test_##a##_##b g_test_##a##_##b;               \
+  void Test_##a##_##b::Run()
+
+
+static int RUN_ALL_TESTS() {
+  vector::const_iterator it;
+  for (it = g_testlist.begin(); it != g_testlist.end(); ++it) {
+    (*it)();   // The test will error-exit if there's a problem.
+  }
+  fprintf(stderr, "\nPassed %d tests\n\nPASS\n",
+          static_cast(g_testlist.size()));
+  return 0;
+}
+
+void Sleep(int seconds) {
+#ifdef _MSC_VER
+  _sleep(seconds * 1000);   // Windows's _sleep takes milliseconds argument
+#else
+  sleep(seconds);
+#endif
+}
+
+using std::min;
+using base::internal::kHookListMaxValues;
+
+// Since HookList is a template and is defined in malloc_hook.cc, we can only
+// use an instantiation of it from malloc_hook.cc.  We then reinterpret those
+// values as integers for testing.
+typedef base::internal::HookList TestHookList;
+
+int TestHookList_Traverse(const TestHookList& list, uintptr_t* output_array, int n) {
+  MallocHook::NewHook values_as_hooks[kHookListMaxValues];
+  int result = list.Traverse(values_as_hooks, min(n, kHookListMaxValues));
+  for (int i = 0; i < result; ++i) {
+    output_array[i] = reinterpret_cast(*values_as_hooks[i]);
+  }
+  return result;
+}
+
+bool TestHookList_Add(TestHookList* list, int val) {
+  return list->Add(reinterpret_cast(val));
+}
+
+bool TestHookList_Remove(TestHookList* list, int val) {
+  return list->Remove(reinterpret_cast(val));
+}
+
+// Note that this is almost the same as INIT_HOOK_LIST in malloc_hook.cc without
+// the cast.
+#define INIT_HOOK_LIST(initial_value) { 1, { initial_value } }
+
+TEST(HookListTest, InitialValueExists) {
+  TestHookList list = INIT_HOOK_LIST(69);
+  uintptr_t values[2] = { 0, 0 };
+  EXPECT_EQ(1, TestHookList_Traverse(list, values, 2));
+  EXPECT_EQ(69, values[0]);
+  EXPECT_EQ(1, list.priv_end);
+}
+
+TEST(HookListTest, CanRemoveInitialValue) {
+  TestHookList list = INIT_HOOK_LIST(69);
+  ASSERT_TRUE(TestHookList_Remove(&list, 69));
+  EXPECT_EQ(0, list.priv_end);
+
+  uintptr_t values[2] = { 0, 0 };
+  EXPECT_EQ(0, TestHookList_Traverse(list, values, 2));
+}
+
+TEST(HookListTest, AddAppends) {
+  TestHookList list = INIT_HOOK_LIST(69);
+  ASSERT_TRUE(TestHookList_Add(&list, 42));
+  EXPECT_EQ(2, list.priv_end);
+
+  uintptr_t values[2] = { 0, 0 };
+  EXPECT_EQ(2, TestHookList_Traverse(list, values, 2));
+  EXPECT_EQ(69, values[0]);
+  EXPECT_EQ(42, values[1]);
+}
+
+TEST(HookListTest, RemoveWorksAndWillClearSize) {
+  TestHookList list = INIT_HOOK_LIST(69);
+  ASSERT_TRUE(TestHookList_Add(&list, 42));
+
+  ASSERT_TRUE(TestHookList_Remove(&list, 69));
+  EXPECT_EQ(2, list.priv_end);
+
+  uintptr_t values[2] = { 0, 0 };
+  EXPECT_EQ(1, TestHookList_Traverse(list, values, 2));
+  EXPECT_EQ(42, values[0]);
+
+  ASSERT_TRUE(TestHookList_Remove(&list, 42));
+  EXPECT_EQ(0, list.priv_end);
+  EXPECT_EQ(0, TestHookList_Traverse(list, values, 2));
+}
+
+TEST(HookListTest, AddPrependsAfterRemove) {
+  TestHookList list = INIT_HOOK_LIST(69);
+  ASSERT_TRUE(TestHookList_Add(&list, 42));
+
+  ASSERT_TRUE(TestHookList_Remove(&list, 69));
+  EXPECT_EQ(2, list.priv_end);
+
+  ASSERT_TRUE(TestHookList_Add(&list, 7));
+  EXPECT_EQ(2, list.priv_end);
+
+  uintptr_t values[2] = { 0, 0 };
+  EXPECT_EQ(2, TestHookList_Traverse(list, values, 2));
+  EXPECT_EQ(7, values[0]);
+  EXPECT_EQ(42, values[1]);
+}
+
+TEST(HookListTest, InvalidAddRejected) {
+  TestHookList list = INIT_HOOK_LIST(69);
+  EXPECT_FALSE(TestHookList_Add(&list, 0));
+
+  uintptr_t values[2] = { 0, 0 };
+  EXPECT_EQ(1, TestHookList_Traverse(list, values, 2));
+  EXPECT_EQ(69, values[0]);
+  EXPECT_EQ(1, list.priv_end);
+}
+
+TEST(HookListTest, FillUpTheList) {
+  TestHookList list = INIT_HOOK_LIST(69);
+  int num_inserts = 0;
+  while (TestHookList_Add(&list, ++num_inserts))
+    ;
+  EXPECT_EQ(kHookListMaxValues, num_inserts);
+  EXPECT_EQ(kHookListMaxValues, list.priv_end);
+
+  uintptr_t values[kHookListMaxValues + 1];
+  EXPECT_EQ(kHookListMaxValues, TestHookList_Traverse(list, values,
+                                                      kHookListMaxValues));
+  EXPECT_EQ(69, values[0]);
+  for (int i = 1; i < kHookListMaxValues; ++i) {
+    EXPECT_EQ(i, values[i]);
+  }
+}
+
+void MultithreadedTestThread(TestHookList* list, int shift,
+                             int thread_num) {
+  string message;
+  char buf[64];
+  for (int i = 1; i < 1000; ++i) {
+    // In each loop, we insert a unique value, check it exists, remove it, and
+    // check it doesn't exist.  We also record some stats to log at the end of
+    // each thread.  Each insertion location and the length of the list is
+    // non-deterministic (except for the very first one, over all threads, and
+    // after the very last one the list should be empty).
+    int value = (i << shift) + thread_num;
+    EXPECT_TRUE(TestHookList_Add(list, value));
+    sched_yield();  // Ensure some more interleaving.
+    uintptr_t values[kHookListMaxValues + 1];
+    int num_values = TestHookList_Traverse(*list, values, kHookListMaxValues);
+    EXPECT_LT(0, num_values);
+    int value_index;
+    for (value_index = 0;
+         value_index < num_values && values[value_index] != value;
+         ++value_index)
+      ;
+    EXPECT_LT(value_index, num_values);  // Should have found value.
+    snprintf(buf, sizeof(buf), "[%d/%d; ", value_index, num_values);
+    message += buf;
+    sched_yield();
+    EXPECT_TRUE(TestHookList_Remove(list, value));
+    sched_yield();
+    num_values = TestHookList_Traverse(*list, values, kHookListMaxValues);
+    for (value_index = 0;
+         value_index < num_values && values[value_index] != value;
+         ++value_index)
+      ;
+    EXPECT_EQ(value_index, num_values);  // Should not have found value.
+    snprintf(buf, sizeof(buf), "%d]", num_values);
+    message += buf;
+    sched_yield();
+  }
+  fprintf(stderr, "thread %d: %s\n", thread_num, message.c_str());
+}
+
+static volatile int num_threads_remaining;
+static TestHookList list = INIT_HOOK_LIST(69);
+static Mutex threadcount_lock;
+
+void MultithreadedTestThreadRunner(int thread_num) {
+  // Wait for all threads to start running.
+  {
+    MutexLock ml(&threadcount_lock);
+    assert(num_threads_remaining > 0);
+    --num_threads_remaining;
+
+    // We should use condvars and the like, but for this test, we'll
+    // go simple and busy-wait.
+    while (num_threads_remaining > 0) {
+      threadcount_lock.Unlock();
+      Sleep(1);
+      threadcount_lock.Lock();
+    }
+  }
+
+  // shift is the smallest number such that (1< kHookListMaxValues
+  int shift = 0;
+  for (int i = kHookListMaxValues; i > 0; i >>= 1)
+    shift += 1;
+
+  MultithreadedTestThread(&list, shift, thread_num);
+}
+
+
+TEST(HookListTest, MultithreadedTest) {
+  ASSERT_TRUE(TestHookList_Remove(&list, 69));
+  ASSERT_EQ(0, list.priv_end);
+
+  // Run kHookListMaxValues thread, each running MultithreadedTestThread.
+  // First, we need to set up the rest of the globals.
+  num_threads_remaining = kHookListMaxValues;   // a global var
+  RunManyThreadsWithId(&MultithreadedTestThreadRunner, num_threads_remaining,
+                       1 << 15);
+
+  uintptr_t values[kHookListMaxValues + 1];
+  EXPECT_EQ(0, TestHookList_Traverse(list, values, kHookListMaxValues));
+  EXPECT_EQ(0, list.priv_end);
+}
+
+// We only do mmap-hooking on (some) linux systems.
+#if defined(HAVE_MMAP) && defined(__linux) && \
+    (defined(__i386__) || defined(__x86_64__) || defined(__PPC__))
+
+int mmap_calls = 0;
+int mmap_matching_calls = 0;
+int munmap_calls = 0;
+int munmap_matching_calls = 0;
+const int kMmapMagicFd = 1;
+void* const kMmapMagicPointer = reinterpret_cast(1);
+
+int MmapReplacement(const void* start,
+                     size_t size,
+                     int protection,
+                     int flags,
+                     int fd,
+                     off_t offset,
+                     void** result) {
+  ++mmap_calls;
+  if (fd == kMmapMagicFd) {
+    ++mmap_matching_calls;
+    *result = kMmapMagicPointer;
+    return true;
+  }
+  return false;
+}
+
+int MunmapReplacement(const void* ptr, size_t size, int* result) {
+  ++munmap_calls;
+  if (ptr == kMmapMagicPointer) {
+    ++munmap_matching_calls;
+    *result = 0;
+    return true;
+  }
+  return false;
+}
+
+TEST(MallocMookTest, MmapReplacements) {
+  mmap_calls = mmap_matching_calls = munmap_calls = munmap_matching_calls = 0;
+  MallocHook::SetMmapReplacement(&MmapReplacement);
+  MallocHook::SetMunmapReplacement(&MunmapReplacement);
+  EXPECT_EQ(kMmapMagicPointer, mmap(NULL, 1, PROT_READ, MAP_PRIVATE,
+                                    kMmapMagicFd, 0));
+  EXPECT_EQ(1, mmap_matching_calls);
+
+  char* ptr = reinterpret_cast(
+      mmap(NULL, 1, PROT_READ | PROT_WRITE,
+           MAP_PRIVATE | MAP_ANONYMOUS, -1, 0));
+  EXPECT_EQ(2, mmap_calls);
+  EXPECT_EQ(1, mmap_matching_calls);
+  ASSERT_NE(MAP_FAILED, ptr);
+  *ptr = 'a';
+
+  EXPECT_EQ(0, munmap(kMmapMagicPointer, 1));
+  EXPECT_EQ(1, munmap_calls);
+  EXPECT_EQ(1, munmap_matching_calls);
+
+  EXPECT_EQ(0, munmap(ptr, 1));
+  EXPECT_EQ(2, munmap_calls);
+  EXPECT_EQ(1, munmap_matching_calls);
+
+  // The DEATH test below is flaky, because we've just munmapped the memory,
+  // making it available for mmap()ing again. There is no guarantee that it
+  // will stay unmapped, and in fact it gets reused ~10% of the time.
+  // It the area is reused, then not only we don't die, but we also corrupt
+  // whoever owns that memory now.
+  // EXPECT_DEATH(*ptr = 'a', "SIGSEGV");
+}
+#endif  // #ifdef HAVE_MMAP && linux && ...
+
+}  // namespace
+
+int main(int argc, char** argv) {
+  return RUN_ALL_TESTS();
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/markidle_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/markidle_unittest.cc
new file mode 100644
index 000000000..829c503fe
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/markidle_unittest.cc
@@ -0,0 +1,127 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2003, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// MallocExtension::MarkThreadIdle() testing
+#include 
+
+#include "config_for_unittests.h"
+#include "base/logging.h"
+#include 
+#include "tests/testutil.h"   // for RunThread()
+
+// Helper routine to do lots of allocations
+static void TestAllocation() {
+  static const int kNum = 100;
+  void* ptr[kNum];
+  for (int size = 8; size <= 65536; size*=2) {
+    for (int i = 0; i < kNum; i++) {
+      ptr[i] = malloc(size);
+    }
+    for (int i = 0; i < kNum; i++) {
+      free(ptr[i]);
+    }
+  }
+}
+
+// Routine that does a bunch of MarkThreadIdle() calls in sequence
+// without any intervening allocations
+static void MultipleIdleCalls() {
+  for (int i = 0; i < 4; i++) {
+    MallocExtension::instance()->MarkThreadIdle();
+  }
+}
+
+// Routine that does a bunch of MarkThreadIdle() calls in sequence
+// with intervening allocations
+static void MultipleIdleNonIdlePhases() {
+  for (int i = 0; i < 4; i++) {
+    TestAllocation();
+    MallocExtension::instance()->MarkThreadIdle();
+  }
+}
+
+// Get current thread cache usage
+static size_t GetTotalThreadCacheSize() {
+  size_t result;
+  CHECK(MallocExtension::instance()->GetNumericProperty(
+            "tcmalloc.current_total_thread_cache_bytes",
+            &result));
+  return result;
+}
+
+// Check that MarkThreadIdle() actually reduces the amount
+// of per-thread memory.
+static void TestIdleUsage() {
+  const size_t original = GetTotalThreadCacheSize();
+
+  TestAllocation();
+  const size_t post_allocation = GetTotalThreadCacheSize();
+  CHECK_GT(post_allocation, original);
+
+  MallocExtension::instance()->MarkThreadIdle();
+  const size_t post_idle = GetTotalThreadCacheSize();
+  CHECK_LE(post_idle, original);
+
+  // Log after testing because logging can allocate heap memory.
+  VLOG(0, "Original usage: %zu\n", original);
+  VLOG(0, "Post allocation: %zu\n", post_allocation);
+  VLOG(0, "Post idle: %zu\n", post_idle);
+}
+
+static void TestTemporarilyIdleUsage() {
+  const size_t original = MallocExtension::instance()->GetThreadCacheSize();
+
+  TestAllocation();
+  const size_t post_allocation = MallocExtension::instance()->GetThreadCacheSize();
+  CHECK_GT(post_allocation, original);
+
+  MallocExtension::instance()->MarkThreadIdle();
+  const size_t post_idle = MallocExtension::instance()->GetThreadCacheSize();
+  CHECK_EQ(post_idle, 0);
+
+  // Log after testing because logging can allocate heap memory.
+  VLOG(0, "Original usage: %zu\n", original);
+  VLOG(0, "Post allocation: %zu\n", post_allocation);
+  VLOG(0, "Post idle: %zu\n", post_idle);
+}
+
+int main(int argc, char** argv) {
+  RunThread(&TestIdleUsage);
+  RunThread(&TestAllocation);
+  RunThread(&MultipleIdleCalls);
+  RunThread(&MultipleIdleNonIdlePhases);
+  RunThread(&TestTemporarilyIdleUsage);
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/maybe_threads_unittest.sh b/trunk/3rdparty/gperftools-2-fit/src/tests/maybe_threads_unittest.sh
new file mode 100755
index 000000000..77b3b7885
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/maybe_threads_unittest.sh
@@ -0,0 +1,79 @@
+#!/bin/sh
+
+# Copyright (c) 2007, Google Inc.
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# ---
+# Author: Craig Silverstein
+#
+# maybe_threads.cc was written to allow LD_PRELOAD=libtcmalloc.so to
+# work even on binaries that were not linked with pthreads.  This
+# unittest tests that, by running low_level_alloc_unittest with an
+# LD_PRELOAD.  (low_level_alloc_unittest was chosen because it doesn't
+# link in tcmalloc.)
+#
+# We assume all the .so files are in the same directory as both
+# addressmap_unittest and profiler1_unittest.  The reason we need
+# profiler1_unittest is because it's instrumented to show the directory
+# it's "really" in when run without any args.  In practice this will either
+# be BINDIR, or, when using libtool, BINDIR/.lib.
+
+# We expect BINDIR to be set in the environment.
+# If not, we set them to some reasonable values.
+BINDIR="${BINDIR:-.}"
+
+if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then
+  echo "USAGE: $0 [unittest dir]"
+  echo "       By default, unittest_dir=$BINDIR"
+  exit 1
+fi
+
+UNITTEST_DIR=${1:-$BINDIR}
+
+# Figure out the "real" unittest directory.  Also holds the .so files.
+UNITTEST_DIR=`$UNITTEST_DIR/low_level_alloc_unittest --help 2>&1 \
+              | awk '{print $2; exit;}' \
+              | xargs dirname`
+
+# Figure out where libtcmalloc lives.   It should be in UNITTEST_DIR,
+# but with libtool it might be in a subdir.
+if [ -r "$UNITTEST_DIR/libtcmalloc_minimal.so" ]; then
+  LIB_PATH="$UNITTEST_DIR/libtcmalloc_minimal.so"
+elif [ -r "$UNITTEST_DIR/.libs/libtcmalloc_minimal.so" ]; then
+  LIB_PATH="$UNITTEST_DIR/.libs/libtcmalloc_minimal.so"
+elif [ -r "$UNITTEST_DIR/libtcmalloc_minimal.dylib" ]; then   # for os x
+  LIB_PATH="$UNITTEST_DIR/libtcmalloc_minimal.dylib"
+elif [ -r "$UNITTEST_DIR/.libs/libtcmalloc_minimal.dylib" ]; then
+  LIB_PATH="$UNITTEST_DIR/.libs/libtcmalloc_minimal.dylib"
+else
+  echo "Cannot run $0: cannot find libtcmalloc_minimal.so"
+  exit 2
+fi
+
+LD_PRELOAD="$LIB_PATH" $UNITTEST_DIR/low_level_alloc_unittest
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/memalign_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/memalign_unittest.cc
new file mode 100644
index 000000000..035f7098d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/memalign_unittest.cc
@@ -0,0 +1,221 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2004, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Check memalign related routines.
+//
+// We can't really do a huge amount of checking, but at the very
+// least, the following code checks that return values are properly
+// aligned, and that writing into the objects works.
+
+#include "config_for_unittests.h"
+
+// Complicated ordering requirements.  tcmalloc.h defines (indirectly)
+// _POSIX_C_SOURCE, which it needs so stdlib.h defines posix_memalign.
+// unistd.h, on the other hand, requires _POSIX_C_SOURCE to be unset,
+// at least on Mac OS X, in order to define getpagesize.  The solution
+// is to #include unistd.h first.  This is safe because unistd.h
+// doesn't sub-include stdlib.h, so we'll still get posix_memalign
+// when we #include stdlib.h.  Blah.
+#ifdef HAVE_UNISTD_H
+#include         // for getpagesize()
+#endif
+#include "tcmalloc.h"      // must come early, to pick up posix_memalign
+#include 
+#include         // defines posix_memalign
+#include          // for the printf at the end
+#ifdef HAVE_STDINT_H
+#include         // for uintptr_t
+#endif
+#ifdef HAVE_UNISTD_H
+#include         // for getpagesize()
+#endif
+// Malloc can be in several places on older versions of OS X.
+#if defined(HAVE_MALLOC_H)
+#include         // for memalign() and valloc()
+#elif defined(HAVE_MALLOC_MALLOC_H)
+#include 
+#elif defined(HAVE_SYS_MALLOC_H)
+#include 
+#endif
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "tests/testutil.h"
+
+
+// Return the next interesting size/delta to check.  Returns -1 if no more.
+static int NextSize(int size) {
+  if (size < 100) {
+    return size+1;
+  } else if (size < 1048576) {
+    // Find next power of two
+    int power = 1;
+    while (power < size) {
+      power <<= 1;
+    }
+
+    // Yield (power-1, power, power+1)
+    if (size < power-1) {
+      return power-1;
+    } else if (size == power-1) {
+      return power;
+    } else {
+      assert(size == power);
+      return power+1;
+    }
+  } else {
+    return -1;
+  }
+}
+
+// Shortform for cast
+static uintptr_t Number(void* p) {
+  return reinterpret_cast(p);
+}
+
+// Check alignment
+static void CheckAlignment(void* p, int align) {
+  if ((Number(p) & (align-1)) != 0)
+    LOG(FATAL, "wrong alignment; wanted 0x%x; got %p\n", align, p);
+}
+
+// Fill a buffer of the specified size with a predetermined pattern
+static void Fill(void* p, int n, char seed) {
+  unsigned char* buffer = reinterpret_cast(p);
+  for (int i = 0; i < n; i++) {
+    buffer[i] = ((seed + i) & 0xff);
+  }
+}
+
+// Check that the specified buffer has the predetermined pattern
+// generated by Fill()
+static bool Valid(const void* p, int n, char seed) {
+  const unsigned char* buffer = reinterpret_cast(p);
+  for (int i = 0; i < n; i++) {
+    if (buffer[i] != ((seed + i) & 0xff)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+int main(int argc, char** argv) {
+  SetTestResourceLimit();
+
+  // Try allocating data with a bunch of alignments and sizes
+  for (int a = 1; a < 1048576; a *= 2) {
+    for (int s = 0; s != -1; s = NextSize(s)) {
+      void* ptr = memalign(a, s);
+      CheckAlignment(ptr, a);
+      Fill(ptr, s, 'x');
+      CHECK(Valid(ptr, s, 'x'));
+      free(ptr);
+
+      if ((a >= sizeof(void*)) && ((a & (a-1)) == 0)) {
+        CHECK(posix_memalign(&ptr, a, s) == 0);
+        CheckAlignment(ptr, a);
+        Fill(ptr, s, 'y');
+        CHECK(Valid(ptr, s, 'y'));
+        free(ptr);
+      }
+    }
+  }
+
+  {
+    // Check various corner cases
+    void* p1 = memalign(1<<20, 1<<19);
+    void* p2 = memalign(1<<19, 1<<19);
+    void* p3 = memalign(1<<21, 1<<19);
+    CheckAlignment(p1, 1<<20);
+    CheckAlignment(p2, 1<<19);
+    CheckAlignment(p3, 1<<21);
+    Fill(p1, 1<<19, 'a');
+    Fill(p2, 1<<19, 'b');
+    Fill(p3, 1<<19, 'c');
+    CHECK(Valid(p1, 1<<19, 'a'));
+    CHECK(Valid(p2, 1<<19, 'b'));
+    CHECK(Valid(p3, 1<<19, 'c'));
+    free(p1);
+    free(p2);
+    free(p3);
+  }
+
+  {
+    // posix_memalign
+    void* ptr;
+    CHECK(posix_memalign(&ptr, 0, 1) == EINVAL);
+    CHECK(posix_memalign(&ptr, sizeof(void*)/2, 1) == EINVAL);
+    CHECK(posix_memalign(&ptr, sizeof(void*)+1, 1) == EINVAL);
+    CHECK(posix_memalign(&ptr, 4097, 1) == EINVAL);
+
+    // Grab some memory so that the big allocation below will definitely fail.
+    void* p_small = malloc(4*1048576);
+    CHECK(p_small != NULL);
+
+    // Make sure overflow is returned as ENOMEM
+    const size_t zero = 0;
+    static const size_t kMinusNTimes = 10;
+    for ( size_t i = 1; i < kMinusNTimes; ++i ) {
+      int r = posix_memalign(&ptr, 1024, zero - i);
+      CHECK(r == ENOMEM);
+    }
+
+    free(p_small);
+  }
+
+  const int pagesize = getpagesize();
+  {
+    // valloc
+    for (int s = 0; s != -1; s = NextSize(s)) {
+      void* p = valloc(s);
+      CheckAlignment(p, pagesize);
+      Fill(p, s, 'v');
+      CHECK(Valid(p, s, 'v'));
+      free(p);
+    }
+  }
+
+  {
+    // pvalloc
+    for (int s = 0; s != -1; s = NextSize(s)) {
+      void* p = pvalloc(s);
+      CheckAlignment(p, pagesize);
+      int alloc_needed = ((s + pagesize - 1) / pagesize) * pagesize;
+      Fill(p, alloc_needed, 'x');
+      CHECK(Valid(p, alloc_needed, 'x'));
+      free(p);
+    }
+  }
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/packed-cache_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/packed-cache_test.cc
new file mode 100644
index 000000000..3984594ca
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/packed-cache_test.cc
@@ -0,0 +1,82 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Geoff Pike
+
+#include 
+#include "base/logging.h"
+#include "packed-cache-inl.h"
+
+static const int kHashbits = PackedCache<20>::kHashbits;
+
+template 
+static size_t MustGet(const PackedCache& cache, uintptr_t key) {
+  uint32 rv;
+  CHECK(cache.TryGet(key, &rv));
+  return rv;
+}
+
+template 
+static size_t Has(const PackedCache& cache, uintptr_t key) {
+  uint32 dummy;
+  return cache.TryGet(key, &dummy);
+}
+
+// A basic sanity test.
+void PackedCacheTest_basic() {
+  PackedCache<20> cache;
+
+  CHECK(!Has(cache, 0));
+  cache.Put(0, 17);
+  CHECK(Has(cache, 0));
+  CHECK_EQ(MustGet(cache, 0), 17);
+
+  cache.Put(19, 99);
+  CHECK_EQ(MustGet(cache, 0), 17);
+  CHECK_EQ(MustGet(cache, 19), 99);
+
+  // Knock <0, 17> out by using a conflicting key.
+  cache.Put(1 << kHashbits, 22);
+  CHECK(!Has(cache, 0));
+  CHECK_EQ(MustGet(cache, 1 << kHashbits), 22);
+
+  cache.Invalidate(19);
+  CHECK(!Has(cache, 19));
+  CHECK(!Has(cache, 0));
+  CHECK(Has(cache, 1 << kHashbits));
+}
+
+int main(int argc, char **argv) {
+  PackedCacheTest_basic();
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/page_heap_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/page_heap_test.cc
new file mode 100644
index 000000000..3caacc0df
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/page_heap_test.cc
@@ -0,0 +1,202 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright 2009 Google Inc. All Rights Reserved.
+// Author: fikes@google.com (Andrew Fikes)
+//
+// Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+#include "config_for_unittests.h"
+
+#include 
+
+#include 
+
+#include "page_heap.h"
+#include "system-alloc.h"
+#include "base/logging.h"
+#include "common.h"
+
+DECLARE_int64(tcmalloc_heap_limit_mb);
+
+namespace {
+
+// The system will only release memory if the block size is equal or hight than
+// system page size.
+static bool HaveSystemRelease =
+    TCMalloc_SystemRelease(
+      TCMalloc_SystemAlloc(getpagesize(), NULL, 0), getpagesize());
+
+static void CheckStats(const tcmalloc::PageHeap* ph,
+                       uint64_t system_pages,
+                       uint64_t free_pages,
+                       uint64_t unmapped_pages) {
+  tcmalloc::PageHeap::Stats stats = ph->stats();
+
+  if (!HaveSystemRelease) {
+    free_pages += unmapped_pages;
+    unmapped_pages = 0;
+  }
+
+  EXPECT_EQ(system_pages, stats.system_bytes >> kPageShift);
+  EXPECT_EQ(free_pages, stats.free_bytes >> kPageShift);
+  EXPECT_EQ(unmapped_pages, stats.unmapped_bytes >> kPageShift);
+}
+
+static void TestPageHeap_Stats() {
+  std::unique_ptr ph(new tcmalloc::PageHeap());
+
+  // Empty page heap
+  CheckStats(ph.get(), 0, 0, 0);
+
+  // Allocate a span 's1'
+  tcmalloc::Span* s1 = ph->New(256);
+  CheckStats(ph.get(), 256, 0, 0);
+
+  // Split span 's1' into 's1', 's2'.  Delete 's2'
+  tcmalloc::Span* s2 = ph->Split(s1, 128);
+  ph->Delete(s2);
+  CheckStats(ph.get(), 256, 128, 0);
+
+  // Unmap deleted span 's2'
+  ph->ReleaseAtLeastNPages(1);
+  CheckStats(ph.get(), 256, 0, 128);
+
+  // Delete span 's1'
+  ph->Delete(s1);
+  CheckStats(ph.get(), 256, 128, 128);
+}
+
+// The number of kMaxPages-sized Spans we will allocate and free during the
+// tests.
+// We will also do twice this many kMaxPages/2-sized ones.
+static constexpr int kNumberMaxPagesSpans = 10;
+
+// Allocates all the last-level page tables we will need. Doing this before
+// calculating the base heap usage is necessary, because otherwise if any of
+// these are allocated during the main test it will throw the heap usage
+// calculations off and cause the test to fail.
+static void AllocateAllPageTables() {
+  // Make a separate PageHeap from the main test so the test can start without
+  // any pages in the lists.
+  std::unique_ptr ph(new tcmalloc::PageHeap());
+  tcmalloc::Span *spans[kNumberMaxPagesSpans * 2];
+  for (int i = 0; i < kNumberMaxPagesSpans; ++i) {
+    spans[i] = ph->New(kMaxPages);
+    EXPECT_NE(spans[i], NULL);
+  }
+  for (int i = 0; i < kNumberMaxPagesSpans; ++i) {
+    ph->Delete(spans[i]);
+  }
+  for (int i = 0; i < kNumberMaxPagesSpans * 2; ++i) {
+    spans[i] = ph->New(kMaxPages >> 1);
+    EXPECT_NE(spans[i], NULL);
+  }
+  for (int i = 0; i < kNumberMaxPagesSpans * 2; ++i) {
+    ph->Delete(spans[i]);
+  }
+}
+
+static void TestPageHeap_Limit() {
+  AllocateAllPageTables();
+
+  std::unique_ptr ph(new tcmalloc::PageHeap());
+
+  CHECK_EQ(kMaxPages, 1 << (20 - kPageShift));
+
+  // We do not know much is taken from the system for other purposes,
+  // so we detect the proper limit:
+  {
+    FLAGS_tcmalloc_heap_limit_mb = 1;
+    tcmalloc::Span* s = NULL;
+    while((s = ph->New(kMaxPages)) == NULL) {
+      FLAGS_tcmalloc_heap_limit_mb++;
+    }
+    FLAGS_tcmalloc_heap_limit_mb += kNumberMaxPagesSpans - 1;
+    ph->Delete(s);
+    // We are [10, 11) mb from the limit now.
+  }
+
+  // Test AllocLarge and GrowHeap first:
+  {
+    tcmalloc::Span * spans[kNumberMaxPagesSpans];
+    for (int i=0; iNew(kMaxPages);
+      EXPECT_NE(spans[i], NULL);
+    }
+    EXPECT_EQ(ph->New(kMaxPages), NULL);
+
+    for (int i=0; iDelete(spans[i]);
+    }
+
+    tcmalloc::Span *defragmented =
+        ph->New(kNumberMaxPagesSpans / 2 * kMaxPages);
+
+    if (HaveSystemRelease) {
+      // EnsureLimit should release deleted normal spans
+      EXPECT_NE(defragmented, NULL);
+      EXPECT_TRUE(ph->CheckExpensive());
+      ph->Delete(defragmented);
+    }
+    else
+    {
+      EXPECT_EQ(defragmented, NULL);
+      EXPECT_TRUE(ph->CheckExpensive());
+    }
+
+    for (int i=1; iDelete(spans[i]);
+    }
+  }
+
+  // Once again, testing small lists this time (twice smaller spans):
+  {
+    tcmalloc::Span * spans[kNumberMaxPagesSpans * 2];
+    for (int i=0; iNew(kMaxPages >> 1);
+      EXPECT_NE(spans[i], NULL);
+    }
+    // one more half size allocation may be possible:
+    tcmalloc::Span * lastHalf = ph->New(kMaxPages >> 1);
+    EXPECT_EQ(ph->New(kMaxPages >> 1), NULL);
+
+    for (int i=0; iDelete(spans[i]);
+    }
+
+    for (Length len = kMaxPages >> 2;
+         len < kNumberMaxPagesSpans / 2 * kMaxPages; len = len << 1) {
+      if(len <= kMaxPages >> 1 || HaveSystemRelease) {
+        tcmalloc::Span *s = ph->New(len);
+        EXPECT_NE(s, NULL);
+        ph->Delete(s);
+      }
+    }
+
+    EXPECT_TRUE(ph->CheckExpensive());
+
+    for (int i=1; iDelete(spans[i]);
+    }
+
+    if (lastHalf != NULL) {
+      ph->Delete(lastHalf);
+    }
+  }
+}
+
+}  // namespace
+
+int main(int argc, char **argv) {
+  TestPageHeap_Stats();
+  TestPageHeap_Limit();
+  printf("PASS\n");
+  // on windows as part of library destructors we call getenv which
+  // calls malloc which fails due to our exhausted heap limit. It then
+  // causes fancy stack overflow because log message we're printing
+  // for failed allocation somehow cause malloc calls too
+  //
+  // To keep us out of trouble we just drop malloc limit
+  FLAGS_tcmalloc_heap_limit_mb = 0;
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/pagemap_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/pagemap_unittest.cc
new file mode 100644
index 000000000..71a94dc32
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/pagemap_unittest.cc
@@ -0,0 +1,178 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2003, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+
+#include "config_for_unittests.h"
+#include 
+#include 
+#if defined HAVE_STDINT_H
+#include              // to get intptr_t
+#elif defined HAVE_INTTYPES_H
+#include            // another place intptr_t might be defined
+#endif
+#include 
+#include 
+#include "base/logging.h"
+#include "pagemap.h"
+
+using std::vector;
+
+static void Permute(vector* elements) {
+  if (elements->empty())
+    return;
+  const size_t num_elements = elements->size();
+  for (size_t i = num_elements - 1; i > 0; --i) {
+    const size_t newpos = rand() % (i + 1);
+    const intptr_t tmp = (*elements)[i];   // swap
+    (*elements)[i] = (*elements)[newpos];
+    (*elements)[newpos] = tmp;
+  }
+}
+
+// Note: we leak memory every time a map is constructed, so do not
+// create too many maps.
+
+// Test specified map type
+template 
+void TestMap(int limit, bool limit_is_below_the_overflow_boundary) {
+  RAW_LOG(INFO, "Running test with %d iterations...\n", limit);
+
+  { // Test sequential ensure/assignment
+    Type map(malloc);
+    for (intptr_t i = 0; i < static_cast(limit); i++) {
+      map.Ensure(i, 1);
+      map.set(i, (void*)(i+1));
+      CHECK_EQ(map.get(i), (void*)(i+1));
+    }
+    for (intptr_t i = 0; i < static_cast(limit); i++) {
+      CHECK_EQ(map.get(i), (void*)(i+1));
+    }
+  }
+
+  { // Test bulk Ensure
+    Type map(malloc);
+    map.Ensure(0, limit);
+    for (intptr_t i = 0; i < static_cast(limit); i++) {
+      map.set(i, (void*)(i+1));
+      CHECK_EQ(map.get(i), (void*)(i+1));
+    }
+    for (intptr_t i = 0; i < static_cast(limit); i++) {
+      CHECK_EQ(map.get(i), (void*)(i+1));
+    }
+  }
+
+  // Test that we correctly notice overflow
+  {
+    Type map(malloc);
+    CHECK_EQ(map.Ensure(limit, limit+1), limit_is_below_the_overflow_boundary);
+  }
+
+  { // Test randomized accesses
+    srand(301);   // srand isn't great, but it's portable
+    vector elements;
+    for (intptr_t i = 0; i < static_cast(limit); i++) elements.push_back(i);
+    Permute(&elements);
+
+    Type map(malloc);
+    for (intptr_t i = 0; i < static_cast(limit); i++) {
+      map.Ensure(elements[i], 1);
+      map.set(elements[i], (void*)(elements[i]+1));
+      CHECK_EQ(map.get(elements[i]), (void*)(elements[i]+1));
+    }
+    for (intptr_t i = 0; i < static_cast(limit); i++) {
+      CHECK_EQ(map.get(i), (void*)(i+1));
+    }
+  }
+}
+
+// REQUIRES: BITS==10, i.e., valid range is [0,1023].
+// Representations for different types will end up being:
+//    PageMap1: array[1024]
+//    PageMap2: array[32][32]
+//    PageMap3: array[16][16][4]
+template 
+void TestNext(const char* name) {
+  RAW_LOG(ERROR, "Running NextTest %s\n", name);
+  Type map(malloc);
+  char a, b, c, d, e;
+
+  // When map is empty
+  CHECK(map.Next(0) == NULL);
+  CHECK(map.Next(5) == NULL);
+  CHECK(map.Next(1<<30) == NULL);
+
+  // Add a single value
+  map.Ensure(40, 1);
+  map.set(40, &a);
+  CHECK(map.Next(0) == &a);
+  CHECK(map.Next(39) == &a);
+  CHECK(map.Next(40) == &a);
+  CHECK(map.Next(41) == NULL);
+  CHECK(map.Next(1<<30) == NULL);
+
+  // Add a few values
+  map.Ensure(41, 1);
+  map.Ensure(100, 3);
+  map.set(41, &b);
+  map.set(100, &c);
+  map.set(101, &d);
+  map.set(102, &e);
+  CHECK(map.Next(0) == &a);
+  CHECK(map.Next(39) == &a);
+  CHECK(map.Next(40) == &a);
+  CHECK(map.Next(41) == &b);
+  CHECK(map.Next(42) == &c);
+  CHECK(map.Next(63) == &c);
+  CHECK(map.Next(64) == &c);
+  CHECK(map.Next(65) == &c);
+  CHECK(map.Next(99) == &c);
+  CHECK(map.Next(100) == &c);
+  CHECK(map.Next(101) == &d);
+  CHECK(map.Next(102) == &e);
+  CHECK(map.Next(103) == NULL);
+}
+
+int main(int argc, char** argv) {
+  TestMap< TCMalloc_PageMap1<10> > (100, true);
+  TestMap< TCMalloc_PageMap1<10> > (1 << 10, false);
+  TestMap< TCMalloc_PageMap2<20> > (100, true);
+  TestMap< TCMalloc_PageMap2<20> > (1 << 20, false);
+  TestMap< TCMalloc_PageMap3<20> > (100, true);
+  TestMap< TCMalloc_PageMap3<20> > (1 << 20, false);
+
+  TestNext< TCMalloc_PageMap1<10> >("PageMap1");
+  TestNext< TCMalloc_PageMap2<10> >("PageMap2");
+  TestNext< TCMalloc_PageMap3<10> >("PageMap3");
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/profile-handler_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/profile-handler_unittest.cc
new file mode 100644
index 000000000..a8afbca06
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/profile-handler_unittest.cc
@@ -0,0 +1,398 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright 2009 Google Inc. All Rights Reserved.
+// Author: Nabeel Mian (nabeelmian@google.com)
+//         Chris Demetriou (cgd@google.com)
+//
+// Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+//
+//
+// This file contains the unit tests for profile-handler.h interface.
+
+#include "config.h"
+#include "profile-handler.h"
+
+#include 
+#include 
+#include 
+#include 
+#include "base/logging.h"
+#include "base/simple_mutex.h"
+
+// Some helpful macros for the test class
+#define TEST_F(cls, fn)    void cls :: fn()
+
+// Do we expect the profiler to be enabled?
+DEFINE_bool(test_profiler_enabled, true,
+            "expect profiler to be enabled during tests");
+
+namespace {
+
+// TODO(csilvers): error-checking on the pthreads routines
+class Thread {
+ public:
+  Thread() : joinable_(false) { }
+  virtual ~Thread() { }
+  void SetJoinable(bool value) { joinable_ = value; }
+  void Start() {
+    pthread_attr_t attr;
+    pthread_attr_init(&attr);
+    pthread_attr_setdetachstate(&attr, joinable_ ? PTHREAD_CREATE_JOINABLE
+                                                 : PTHREAD_CREATE_DETACHED);
+    pthread_create(&thread_, &attr, &DoRun, this);
+    pthread_attr_destroy(&attr);
+  }
+  void Join()  {
+    assert(joinable_);
+    pthread_join(thread_, NULL);
+  }
+  virtual void Run() = 0;
+ private:
+  static void* DoRun(void* cls) {
+    ProfileHandlerRegisterThread();
+    reinterpret_cast(cls)->Run();
+    return NULL;
+  }
+  pthread_t thread_;
+  bool joinable_;
+};
+
+// Sleep interval in nano secs. ITIMER_PROF goes off only afer the specified CPU
+// time is consumed. Under heavy load this process may no get scheduled in a
+// timely fashion. Therefore, give enough time (20x of ProfileHandle timer
+// interval 10ms (100Hz)) for this process to accumulate enought CPU time to get
+// a profile tick.
+int kSleepInterval = 200000000;
+
+// Sleep interval in nano secs. To ensure that if the timer has expired it is
+// reset.
+int kTimerResetInterval = 5000000;
+
+static bool linux_per_thread_timers_mode_ = false;
+static int timer_type_ = ITIMER_PROF;
+
+// Delays processing by the specified number of nano seconds. 'delay_ns'
+// must be less than the number of nano seconds in a second (1000000000).
+void Delay(int delay_ns) {
+  static const int kNumNSecInSecond = 1000000000;
+  EXPECT_LT(delay_ns, kNumNSecInSecond);
+  struct timespec delay = { 0, delay_ns };
+  nanosleep(&delay, 0);
+}
+
+// Checks whether the profile timer is enabled for the current thread.
+bool IsTimerEnabled() {
+  itimerval current_timer;
+  EXPECT_EQ(0, getitimer(timer_type_, ¤t_timer));
+  if ((current_timer.it_value.tv_sec == 0) &&
+      (current_timer.it_value.tv_usec != 0)) {
+    // May be the timer has expired. Sleep for a bit and check again.
+    Delay(kTimerResetInterval);
+    EXPECT_EQ(0, getitimer(timer_type_, ¤t_timer));
+  }
+  return (current_timer.it_value.tv_sec != 0 ||
+          current_timer.it_value.tv_usec != 0);
+}
+
+// Dummy worker thread to accumulate cpu time.
+class BusyThread : public Thread {
+ public:
+  BusyThread() : stop_work_(false) {
+  }
+
+  // Setter/Getters
+  bool stop_work() {
+    MutexLock lock(&mu_);
+    return stop_work_;
+  }
+  void set_stop_work(bool stop_work) {
+    MutexLock lock(&mu_);
+    stop_work_ = stop_work;
+  }
+
+ private:
+  // Protects stop_work_ below.
+  Mutex mu_;
+  // Whether to stop work?
+  bool stop_work_;
+
+  // Do work until asked to stop.
+  void Run() {
+    while (!stop_work()) {
+    }
+  }
+};
+
+class NullThread : public Thread {
+ private:
+  void Run() {
+  }
+};
+
+// Signal handler which tracks the profile timer ticks.
+static void TickCounter(int sig, siginfo_t* sig_info, void *vuc,
+                        void* tick_counter) {
+  int* counter = static_cast(tick_counter);
+  ++(*counter);
+}
+
+// This class tests the profile-handler.h interface.
+class ProfileHandlerTest {
+ protected:
+
+  // Determines the timer type.
+  static void SetUpTestCase() {
+    timer_type_ = (getenv("CPUPROFILE_REALTIME") ? ITIMER_REAL : ITIMER_PROF);
+
+#if HAVE_LINUX_SIGEV_THREAD_ID
+    linux_per_thread_timers_mode_ = (getenv("CPUPROFILE_PER_THREAD_TIMERS") != NULL);
+    const char *signal_number = getenv("CPUPROFILE_TIMER_SIGNAL");
+    if (signal_number) {
+      //signal_number_ = strtol(signal_number, NULL, 0);
+      linux_per_thread_timers_mode_ = true;
+      Delay(kTimerResetInterval);
+    }
+#endif
+  }
+
+  // Sets up the profile timers and SIGPROF/SIGALRM handler in a known state.
+  // It does the following:
+  // 1. Unregisters all the callbacks, stops the timer and clears out
+  //    timer_sharing state in the ProfileHandler. This clears out any state
+  //    left behind by the previous test or during module initialization when
+  //    the test program was started.
+  // 3. Starts a busy worker thread to accumulate CPU usage.
+  virtual void SetUp() {
+    // Reset the state of ProfileHandler between each test. This unregisters
+    // all callbacks and stops the timer.
+    ProfileHandlerReset();
+    EXPECT_EQ(0, GetCallbackCount());
+    VerifyDisabled();
+    // Start worker to accumulate cpu usage.
+    StartWorker();
+  }
+
+  virtual void TearDown() {
+    ProfileHandlerReset();
+    // Stops the worker thread.
+    StopWorker();
+  }
+
+  // Starts a busy worker thread to accumulate cpu time. There should be only
+  // one busy worker running. This is required for the case where there are
+  // separate timers for each thread.
+  void StartWorker() {
+    busy_worker_ = new BusyThread();
+    busy_worker_->SetJoinable(true);
+    busy_worker_->Start();
+    // Wait for worker to start up and register with the ProfileHandler.
+    // TODO(nabeelmian) This may not work under very heavy load.
+    Delay(kSleepInterval);
+  }
+
+  // Stops the worker thread.
+  void StopWorker() {
+    busy_worker_->set_stop_work(true);
+    busy_worker_->Join();
+    delete busy_worker_;
+  }
+
+  // Gets the number of callbacks registered with the ProfileHandler.
+  uint32 GetCallbackCount() {
+    ProfileHandlerState state;
+    ProfileHandlerGetState(&state);
+    return state.callback_count;
+  }
+
+  // Gets the current ProfileHandler interrupt count.
+  uint64 GetInterruptCount() {
+    ProfileHandlerState state;
+    ProfileHandlerGetState(&state);
+    return state.interrupts;
+  }
+
+  // Verifies that a callback is correctly registered and receiving
+  // profile ticks.
+  void VerifyRegistration(const int& tick_counter) {
+    // Check the callback count.
+    EXPECT_GT(GetCallbackCount(), 0);
+    // Check that the profile timer is enabled.
+    EXPECT_EQ(FLAGS_test_profiler_enabled, linux_per_thread_timers_mode_ || IsTimerEnabled());
+    uint64 interrupts_before = GetInterruptCount();
+    // Sleep for a bit and check that tick counter is making progress.
+    int old_tick_count = tick_counter;
+    Delay(kSleepInterval);
+    int new_tick_count = tick_counter;
+    uint64 interrupts_after = GetInterruptCount();
+    if (FLAGS_test_profiler_enabled) {
+      EXPECT_GT(new_tick_count, old_tick_count);
+      EXPECT_GT(interrupts_after, interrupts_before);
+    } else {
+      EXPECT_EQ(new_tick_count, old_tick_count);
+      EXPECT_EQ(interrupts_after, interrupts_before);
+    }
+  }
+
+  // Verifies that a callback is not receiving profile ticks.
+  void VerifyUnregistration(const int& tick_counter) {
+    // Sleep for a bit and check that tick counter is not making progress.
+    int old_tick_count = tick_counter;
+    Delay(kSleepInterval);
+    int new_tick_count = tick_counter;
+    EXPECT_EQ(old_tick_count, new_tick_count);
+    // If no callbacks, timer should be disabled.
+    if (GetCallbackCount() == 0) {
+      EXPECT_FALSE(IsTimerEnabled());
+    }
+  }
+
+  // Verifies that the timer is disabled. Expects the worker to be running.
+  void VerifyDisabled() {
+    // Check that the callback count is 0.
+    EXPECT_EQ(0, GetCallbackCount());
+    // Check that the timer is disabled.
+    EXPECT_FALSE(IsTimerEnabled());
+    // Verify that the ProfileHandler is not accumulating profile ticks.
+    uint64 interrupts_before = GetInterruptCount();
+    Delay(kSleepInterval);
+    uint64 interrupts_after = GetInterruptCount();
+    EXPECT_EQ(interrupts_before, interrupts_after);
+  }
+
+  // Registers a callback and waits for kTimerResetInterval for timers to get
+  // reset.
+  ProfileHandlerToken* RegisterCallback(void* callback_arg) {
+    ProfileHandlerToken* token = ProfileHandlerRegisterCallback(
+        TickCounter, callback_arg);
+    Delay(kTimerResetInterval);
+    return token;
+  }
+
+  // Unregisters a callback and waits for kTimerResetInterval for timers to get
+  // reset.
+  void UnregisterCallback(ProfileHandlerToken* token) {
+    ProfileHandlerUnregisterCallback(token);
+    Delay(kTimerResetInterval);
+  }
+
+  // Busy worker thread to accumulate cpu usage.
+  BusyThread* busy_worker_;
+
+ private:
+  // The tests to run
+  void RegisterUnregisterCallback();
+  void MultipleCallbacks();
+  void Reset();
+  void RegisterCallbackBeforeThread();
+
+ public:
+#define RUN(test)  do {                         \
+    printf("Running %s\n", #test);              \
+    ProfileHandlerTest pht;                     \
+    pht.SetUp();                                \
+    pht.test();                                 \
+    pht.TearDown();                             \
+} while (0)
+
+  static int RUN_ALL_TESTS() {
+    SetUpTestCase();
+    RUN(RegisterUnregisterCallback);
+    RUN(MultipleCallbacks);
+    RUN(Reset);
+    RUN(RegisterCallbackBeforeThread);
+    printf("Done\n");
+    return 0;
+  }
+};
+
+// Verifies ProfileHandlerRegisterCallback and
+// ProfileHandlerUnregisterCallback.
+TEST_F(ProfileHandlerTest, RegisterUnregisterCallback) {
+  int tick_count = 0;
+  ProfileHandlerToken* token = RegisterCallback(&tick_count);
+  VerifyRegistration(tick_count);
+  UnregisterCallback(token);
+  VerifyUnregistration(tick_count);
+}
+
+// Verifies that multiple callbacks can be registered.
+TEST_F(ProfileHandlerTest, MultipleCallbacks) {
+  // Register first callback.
+  int first_tick_count = 0;
+  ProfileHandlerToken* token1 = RegisterCallback(&first_tick_count);
+  // Check that callback was registered correctly.
+  VerifyRegistration(first_tick_count);
+  EXPECT_EQ(1, GetCallbackCount());
+
+  // Register second callback.
+  int second_tick_count = 0;
+  ProfileHandlerToken* token2 = RegisterCallback(&second_tick_count);
+  // Check that callback was registered correctly.
+  VerifyRegistration(second_tick_count);
+  EXPECT_EQ(2, GetCallbackCount());
+
+  // Unregister first callback.
+  UnregisterCallback(token1);
+  VerifyUnregistration(first_tick_count);
+  EXPECT_EQ(1, GetCallbackCount());
+  // Verify that second callback is still registered.
+  VerifyRegistration(second_tick_count);
+
+  // Unregister second callback.
+  UnregisterCallback(token2);
+  VerifyUnregistration(second_tick_count);
+  EXPECT_EQ(0, GetCallbackCount());
+
+  // Verify that the timers is correctly disabled.
+  if (!linux_per_thread_timers_mode_) VerifyDisabled();
+}
+
+// Verifies ProfileHandlerReset
+TEST_F(ProfileHandlerTest, Reset) {
+  // Verify that the profile timer interrupt is disabled.
+  if (!linux_per_thread_timers_mode_) VerifyDisabled();
+  int first_tick_count = 0;
+  RegisterCallback(&first_tick_count);
+  VerifyRegistration(first_tick_count);
+  EXPECT_EQ(1, GetCallbackCount());
+
+  // Register second callback.
+  int second_tick_count = 0;
+  RegisterCallback(&second_tick_count);
+  VerifyRegistration(second_tick_count);
+  EXPECT_EQ(2, GetCallbackCount());
+
+  // Reset the profile handler and verify that callback were correctly
+  // unregistered and the timer is disabled.
+  ProfileHandlerReset();
+  VerifyUnregistration(first_tick_count);
+  VerifyUnregistration(second_tick_count);
+  if (!linux_per_thread_timers_mode_) VerifyDisabled();
+}
+
+// Verifies that ProfileHandler correctly handles a case where a callback was
+// registered before the second thread started.
+TEST_F(ProfileHandlerTest, RegisterCallbackBeforeThread) {
+  // Stop the worker.
+  StopWorker();
+  // Unregister all existing callbacks and stop the timer.
+  ProfileHandlerReset();
+  EXPECT_EQ(0, GetCallbackCount());
+  VerifyDisabled();
+
+  // Start the worker.
+  StartWorker();
+  // Register a callback and check that profile ticks are being delivered and
+  // the timer is enabled.
+  int tick_count = 0;
+  RegisterCallback(&tick_count);
+  EXPECT_EQ(1, GetCallbackCount());
+  VerifyRegistration(tick_count);
+  EXPECT_EQ(FLAGS_test_profiler_enabled, linux_per_thread_timers_mode_ || IsTimerEnabled());
+}
+
+}  // namespace
+
+int main(int argc, char** argv) {
+  return ProfileHandlerTest::RUN_ALL_TESTS();
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/profiledata_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/profiledata_unittest.cc
new file mode 100644
index 000000000..3286b9c84
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/profiledata_unittest.cc
@@ -0,0 +1,612 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---
+// Author: Chris Demetriou
+//
+// This file contains the unit tests for the ProfileData class.
+
+#if defined HAVE_STDINT_H
+#include              // to get uintptr_t
+#elif defined HAVE_INTTYPES_H
+#include            // another place uintptr_t might be defined
+#endif
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "profiledata.h"
+
+#include "base/commandlineflags.h"
+#include "base/logging.h"
+
+using std::string;
+
+// Some helpful macros for the test class
+#define TEST_F(cls, fn)    void cls :: fn()
+
+namespace {
+
+template class scoped_array {
+ public:
+  scoped_array(T* data) : data_(data) { }
+  ~scoped_array() { delete[] data_; }
+  T* get() { return data_; }
+  T& operator[](int i) { return data_[i]; }
+ private:
+  T* const data_;
+};
+
+// Re-runs fn until it doesn't cause EINTR.
+#define NO_INTR(fn)   do {} while ((fn) < 0 && errno == EINTR)
+
+// Read up to "count" bytes from file descriptor "fd" into the buffer
+// starting at "buf" while handling short reads and EINTR.  On
+// success, return the number of bytes read.  Otherwise, return -1.
+static ssize_t ReadPersistent(const int fd, void *buf, const size_t count) {
+  CHECK_GE(fd, 0);
+  char *buf0 = reinterpret_cast(buf);
+  ssize_t num_bytes = 0;
+  while (num_bytes < count) {
+    ssize_t len;
+    NO_INTR(len = read(fd, buf0 + num_bytes, count - num_bytes));
+    if (len < 0) {  // There was an error other than EINTR.
+      return -1;
+    }
+    if (len == 0) {  // Reached EOF.
+      break;
+    }
+    num_bytes += len;
+  }
+  CHECK(num_bytes <= count);
+  return num_bytes;
+}
+
+// Thin wrapper around a file descriptor so that the file descriptor
+// gets closed for sure.
+struct FileDescriptor {
+  const int fd_;
+  explicit FileDescriptor(int fd) : fd_(fd) {}
+  ~FileDescriptor() {
+    if (fd_ >= 0) {
+      NO_INTR(close(fd_));
+    }
+  }
+  int get() { return fd_; }
+};
+
+// must be the same as with ProfileData::Slot.
+typedef uintptr_t ProfileDataSlot;
+
+// Quick and dirty function to make a number into a void* for use in a
+// sample.
+inline void* V(intptr_t x) { return reinterpret_cast(x); }
+
+// String returned by ProfileDataChecker helper functions to indicate success.
+const char kNoError[] = "";
+
+class ProfileDataChecker {
+ public:
+  ProfileDataChecker() {
+    const char* tmpdir = getenv("TMPDIR");
+    if (tmpdir == NULL)
+      tmpdir = "/tmp";
+    mkdir(tmpdir, 0755);     // if necessary
+    filename_ = string(tmpdir) + "/profiledata_unittest.tmp";
+  }
+
+  string filename() const { return filename_; }
+
+  // Checks the first 'num_slots' profile data slots in the file
+  // against the data pointed to by 'slots'.  Returns kNoError if the
+  // data matched, otherwise returns an indication of the cause of the
+  // mismatch.
+  string Check(const ProfileDataSlot* slots, int num_slots) {
+    return CheckWithSkips(slots, num_slots, NULL, 0);
+  }
+
+  // Checks the first 'num_slots' profile data slots in the file
+  // against the data pointed to by 'slots', skipping over entries
+  // described by 'skips' and 'num_skips'.
+  //
+  // 'skips' must be a sorted list of (0-based) slot numbers to be
+  // skipped, of length 'num_skips'.  Note that 'num_slots' includes
+  // any skipped slots, i.e., the first 'num_slots' profile data slots
+  // will be considered, but some may be skipped.
+  //
+  // Returns kNoError if the data matched, otherwise returns an
+  // indication of the cause of the mismatch.
+  string CheckWithSkips(const ProfileDataSlot* slots, int num_slots,
+                        const int* skips, int num_skips);
+
+  // Validate that a profile is correctly formed.  The profile is
+  // assumed to have been created by the same kind of binary (e.g.,
+  // same slot size, same endian, etc.) as is validating the profile.
+  //
+  // Returns kNoError if the profile appears valid, otherwise returns
+  // an indication of the problem with the profile.
+  string ValidateProfile();
+
+ private:
+  string filename_;
+};
+
+string ProfileDataChecker::CheckWithSkips(const ProfileDataSlot* slots,
+                                          int num_slots, const int* skips,
+                                          int num_skips) {
+  FileDescriptor fd(open(filename_.c_str(), O_RDONLY));
+  if (fd.get() < 0)
+    return "file open error";
+
+  scoped_array filedata(new ProfileDataSlot[num_slots]);
+  size_t expected_bytes = num_slots * sizeof filedata[0];
+  ssize_t bytes_read = ReadPersistent(fd.get(), filedata.get(), expected_bytes);
+  if (expected_bytes != bytes_read)
+    return "file too small";
+
+  for (int i = 0; i < num_slots; i++) {
+    if (num_skips > 0 && *skips == i) {
+      num_skips--;
+      skips++;
+      continue;
+    }
+    if (slots[i] != filedata[i])
+      return "data mismatch";
+  }
+  return kNoError;
+}
+
+string ProfileDataChecker::ValidateProfile() {
+  FileDescriptor fd(open(filename_.c_str(), O_RDONLY));
+  if (fd.get() < 0)
+    return "file open error";
+
+  struct stat statbuf;
+  if (fstat(fd.get(), &statbuf) != 0)
+    return "fstat error";
+  if (statbuf.st_size != static_cast(statbuf.st_size))
+    return "file impossibly large";
+  ssize_t filesize = statbuf.st_size;
+
+  scoped_array filedata(new char[filesize]);
+  if (ReadPersistent(fd.get(), filedata.get(), filesize) != filesize)
+    return "read of whole file failed";
+
+  // Must have enough data for the header and the trailer.
+  if (filesize < (5 + 3) * sizeof(ProfileDataSlot))
+    return "not enough data in profile for header + trailer";
+
+  // Check the header
+  if (reinterpret_cast(filedata.get())[0] != 0)
+    return "error in header: non-zero count";
+  if (reinterpret_cast(filedata.get())[1] != 3)
+    return "error in header: num_slots != 3";
+  if (reinterpret_cast(filedata.get())[2] != 0)
+    return "error in header: non-zero format version";
+  // Period (slot 3) can have any value.
+  if (reinterpret_cast(filedata.get())[4] != 0)
+    return "error in header: non-zero padding value";
+  ssize_t cur_offset = 5 * sizeof(ProfileDataSlot);
+
+  // While there are samples, skip them.  Each sample consists of
+  // at least three slots.
+  bool seen_trailer = false;
+  while (!seen_trailer) {
+    if (cur_offset > filesize - 3 * sizeof(ProfileDataSlot))
+      return "truncated sample header";
+    ProfileDataSlot* sample =
+        reinterpret_cast(filedata.get() + cur_offset);
+    ProfileDataSlot slots_this_sample = 2 + sample[1];
+    ssize_t size_this_sample = slots_this_sample * sizeof(ProfileDataSlot);
+    if (cur_offset > filesize - size_this_sample)
+      return "truncated sample";
+
+    if (sample[0] == 0 && sample[1] == 1 && sample[2] == 0) {
+      seen_trailer = true;
+    } else {
+      if (sample[0] < 1)
+        return "error in sample: sample count < 1";
+      if (sample[1] < 1)
+        return "error in sample: num_pcs < 1";
+      for (int i = 2; i < slots_this_sample; i++) {
+        if (sample[i] == 0)
+          return "error in sample: NULL PC";
+      }
+    }
+    cur_offset += size_this_sample;
+  }
+
+  // There must be at least one line in the (text) list of mapped objects,
+  // and it must be terminated by a newline.  Note, the use of newline
+  // here and below Might not be reasonable on non-UNIX systems.
+  if (cur_offset >= filesize)
+    return "no list of mapped objects";
+  if (filedata[filesize - 1] != '\n')
+    return "profile did not end with a complete line";
+
+  while (cur_offset < filesize) {
+    char* line_start = filedata.get() + cur_offset;
+
+    // Find the end of the line, and replace it with a NUL for easier
+    // scanning.
+    char* line_end = strchr(line_start, '\n');
+    *line_end = '\0';
+
+    // Advance past any leading space.  It's allowed in some lines,
+    // but not in others.
+    bool has_leading_space = false;
+    char* line_cur = line_start;
+    while (*line_cur == ' ') {
+      has_leading_space = true;
+      line_cur++;
+    }
+
+    bool found_match = false;
+
+    // Check for build lines.
+    if (!found_match) {
+      found_match = (strncmp(line_cur, "build=", 6) == 0);
+      // Anything may follow "build=", and leading space is allowed.
+    }
+
+    // A line from ProcMapsIterator::FormatLine, of the form:
+    //
+    // 40000000-40015000 r-xp 00000000 03:01 12845071   /lib/ld-2.3.2.so
+    //
+    // Leading space is not allowed.  The filename may be omitted or
+    // may consist of multiple words, so we scan only up to the
+    // space before the filename.
+    if (!found_match) {
+      int chars_scanned = -1;
+      sscanf(line_cur, "%*x-%*x %*c%*c%*c%*c %*x %*x:%*x %*d %n",
+             &chars_scanned);
+      found_match = (chars_scanned > 0 && !has_leading_space);
+    }
+
+    // A line from DumpAddressMap, of the form:
+    //
+    // 40000000-40015000: /lib/ld-2.3.2.so
+    //
+    // Leading space is allowed.  The filename may be omitted or may
+    // consist of multiple words, so we scan only up to the space
+    // before the filename.
+    if (!found_match) {
+      int chars_scanned = -1;
+      sscanf(line_cur, "%*x-%*x: %n", &chars_scanned);
+      found_match = (chars_scanned > 0);
+    }
+
+    if (!found_match)
+      return "unrecognized line in text section";
+
+    cur_offset += (line_end - line_start) + 1;
+  }
+
+  return kNoError;
+}
+
+class ProfileDataTest {
+ protected:
+  void ExpectStopped() {
+    EXPECT_FALSE(collector_.enabled());
+  }
+
+  void ExpectRunningSamples(int samples) {
+    ProfileData::State state;
+    collector_.GetCurrentState(&state);
+    EXPECT_TRUE(state.enabled);
+    EXPECT_EQ(samples, state.samples_gathered);
+  }
+
+  void ExpectSameState(const ProfileData::State& before,
+                       const ProfileData::State& after) {
+    EXPECT_EQ(before.enabled, after.enabled);
+    EXPECT_EQ(before.samples_gathered, after.samples_gathered);
+    EXPECT_EQ(before.start_time, after.start_time);
+    EXPECT_STREQ(before.profile_name, after.profile_name);
+  }
+
+  ProfileData        collector_;
+  ProfileDataChecker checker_;
+
+ private:
+  // The tests to run
+  void OpsWhenStopped();
+  void StartStopEmpty();
+  void StartStopNoOptionsEmpty();
+  void StartWhenStarted();
+  void StartStopEmpty2();
+  void CollectOne();
+  void CollectTwoMatching();
+  void CollectTwoFlush();
+  void StartResetRestart();
+
+ public:
+#define RUN(test)  do {                         \
+    printf("Running %s\n", #test);              \
+    ProfileDataTest pdt;                        \
+    pdt.test();                                 \
+} while (0)
+
+  static int RUN_ALL_TESTS() {
+    RUN(OpsWhenStopped);
+    RUN(StartStopEmpty);
+    RUN(StartWhenStarted);
+    RUN(StartStopEmpty2);
+    RUN(CollectOne);
+    RUN(CollectTwoMatching);
+    RUN(CollectTwoFlush);
+    RUN(StartResetRestart);
+    RUN(StartStopNoOptionsEmpty);
+    return 0;
+  }
+};
+
+// Check that various operations are safe when stopped.
+TEST_F(ProfileDataTest, OpsWhenStopped) {
+  ExpectStopped();
+  EXPECT_FALSE(collector_.enabled());
+
+  // Verify that state is disabled, all-empty/all-0
+  ProfileData::State state_before;
+  collector_.GetCurrentState(&state_before);
+  EXPECT_FALSE(state_before.enabled);
+  EXPECT_EQ(0, state_before.samples_gathered);
+  EXPECT_EQ(0, state_before.start_time);
+  EXPECT_STREQ("", state_before.profile_name);
+
+  // Safe to call stop again.
+  collector_.Stop();
+
+  // Safe to call FlushTable.
+  collector_.FlushTable();
+
+  // Safe to call Add.
+  const void *trace[] = { V(100), V(101), V(102), V(103), V(104) };
+  collector_.Add(arraysize(trace), trace);
+
+  ProfileData::State state_after;
+  collector_.GetCurrentState(&state_after);
+
+  ExpectSameState(state_before, state_after);
+}
+
+// Start and Stop, collecting no samples.  Verify output contents.
+TEST_F(ProfileDataTest, StartStopEmpty) {
+  const int frequency = 1;
+  ProfileDataSlot slots[] = {
+    0, 3, 0, 1000000 / frequency, 0,    // binary header
+    0, 1, 0                             // binary trailer
+  };
+
+  ExpectStopped();
+  ProfileData::Options options;
+  options.set_frequency(frequency);
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options));
+  ExpectRunningSamples(0);
+  collector_.Stop();
+  ExpectStopped();
+  EXPECT_EQ(kNoError, checker_.ValidateProfile());
+  EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots)));
+}
+
+// Start and Stop with no options, collecting no samples.  Verify
+// output contents.
+TEST_F(ProfileDataTest, StartStopNoOptionsEmpty) {
+  // We're not requesting a specific period, implementation can do
+  // whatever it likes.
+  ProfileDataSlot slots[] = {
+    0, 3, 0, 0 /* skipped */, 0,        // binary header
+    0, 1, 0                             // binary trailer
+  };
+  int slots_to_skip[] = { 3 };
+
+  ExpectStopped();
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(),
+                               ProfileData::Options()));
+  ExpectRunningSamples(0);
+  collector_.Stop();
+  ExpectStopped();
+  EXPECT_EQ(kNoError, checker_.ValidateProfile());
+  EXPECT_EQ(kNoError, checker_.CheckWithSkips(slots, arraysize(slots),
+                                              slots_to_skip,
+                                              arraysize(slots_to_skip)));
+}
+
+// Start after already started.  Should return false and not impact
+// collected data or state.
+TEST_F(ProfileDataTest, StartWhenStarted) {
+  const int frequency = 1;
+  ProfileDataSlot slots[] = {
+    0, 3, 0, 1000000 / frequency, 0,    // binary header
+    0, 1, 0                             // binary trailer
+  };
+
+  ProfileData::Options options;
+  options.set_frequency(frequency);
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options));
+
+  ProfileData::State state_before;
+  collector_.GetCurrentState(&state_before);
+
+  options.set_frequency(frequency * 2);
+  CHECK(!collector_.Start("foobar", options));
+
+  ProfileData::State state_after;
+  collector_.GetCurrentState(&state_after);
+  ExpectSameState(state_before, state_after);
+
+  collector_.Stop();
+  ExpectStopped();
+  EXPECT_EQ(kNoError, checker_.ValidateProfile());
+  EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots)));
+}
+
+// Like StartStopEmpty, but uses a different file name and frequency.
+TEST_F(ProfileDataTest, StartStopEmpty2) {
+  const int frequency = 2;
+  ProfileDataSlot slots[] = {
+    0, 3, 0, 1000000 / frequency, 0,    // binary header
+    0, 1, 0                             // binary trailer
+  };
+
+  ExpectStopped();
+  ProfileData::Options options;
+  options.set_frequency(frequency);
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options));
+  ExpectRunningSamples(0);
+  collector_.Stop();
+  ExpectStopped();
+  EXPECT_EQ(kNoError, checker_.ValidateProfile());
+  EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots)));
+}
+
+TEST_F(ProfileDataTest, CollectOne) {
+  const int frequency = 2;
+  ProfileDataSlot slots[] = {
+    0, 3, 0, 1000000 / frequency, 0,    // binary header
+    1, 5, 100, 101, 102, 103, 104,      // our sample
+    0, 1, 0                             // binary trailer
+  };
+
+  ExpectStopped();
+  ProfileData::Options options;
+  options.set_frequency(frequency);
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options));
+  ExpectRunningSamples(0);
+
+  const void *trace[] = { V(100), V(101), V(102), V(103), V(104) };
+  collector_.Add(arraysize(trace), trace);
+  ExpectRunningSamples(1);
+
+  collector_.Stop();
+  ExpectStopped();
+  EXPECT_EQ(kNoError, checker_.ValidateProfile());
+  EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots)));
+}
+
+TEST_F(ProfileDataTest, CollectTwoMatching) {
+  const int frequency = 2;
+  ProfileDataSlot slots[] = {
+    0, 3, 0, 1000000 / frequency, 0,    // binary header
+    2, 5, 100, 201, 302, 403, 504,      // our two samples
+    0, 1, 0                             // binary trailer
+  };
+
+  ExpectStopped();
+  ProfileData::Options options;
+  options.set_frequency(frequency);
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options));
+  ExpectRunningSamples(0);
+
+  for (int i = 0; i < 2; ++i) {
+    const void *trace[] = { V(100), V(201), V(302), V(403), V(504) };
+    collector_.Add(arraysize(trace), trace);
+    ExpectRunningSamples(i + 1);
+  }
+
+  collector_.Stop();
+  ExpectStopped();
+  EXPECT_EQ(kNoError, checker_.ValidateProfile());
+  EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots)));
+}
+
+TEST_F(ProfileDataTest, CollectTwoFlush) {
+  const int frequency = 2;
+  ProfileDataSlot slots[] = {
+    0, 3, 0, 1000000 / frequency, 0,    // binary header
+    1, 5, 100, 201, 302, 403, 504,      // first sample (flushed)
+    1, 5, 100, 201, 302, 403, 504,      // second identical sample
+    0, 1, 0                             // binary trailer
+  };
+
+  ExpectStopped();
+  ProfileData::Options options;
+  options.set_frequency(frequency);
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options));
+  ExpectRunningSamples(0);
+
+  const void *trace[] = { V(100), V(201), V(302), V(403), V(504) };
+
+  collector_.Add(arraysize(trace), trace);
+  ExpectRunningSamples(1);
+  collector_.FlushTable();
+
+  collector_.Add(arraysize(trace), trace);
+  ExpectRunningSamples(2);
+
+  collector_.Stop();
+  ExpectStopped();
+  EXPECT_EQ(kNoError, checker_.ValidateProfile());
+  EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots)));
+}
+
+// Start then reset, verify that the result is *not* a valid profile.
+// Then start again and make sure the result is OK.
+TEST_F(ProfileDataTest, StartResetRestart) {
+  ExpectStopped();
+  ProfileData::Options options;
+  options.set_frequency(1);
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options));
+  ExpectRunningSamples(0);
+  collector_.Reset();
+  ExpectStopped();
+  // We expect the resulting file to be empty.  This is a minimal test
+  // of ValidateProfile.
+  EXPECT_NE(kNoError, checker_.ValidateProfile());
+
+  struct stat statbuf;
+  EXPECT_EQ(0, stat(checker_.filename().c_str(), &statbuf));
+  EXPECT_EQ(0, statbuf.st_size);
+
+  const int frequency = 2;  // Different frequency than used above.
+  ProfileDataSlot slots[] = {
+    0, 3, 0, 1000000 / frequency, 0,    // binary header
+    0, 1, 0                             // binary trailer
+  };
+
+  options.set_frequency(frequency);
+  EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options));
+  ExpectRunningSamples(0);
+  collector_.Stop();
+  ExpectStopped();
+  EXPECT_EQ(kNoError, checker_.ValidateProfile());
+  EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots)));
+}
+
+}  // namespace
+
+int main(int argc, char** argv) {
+  int rc = ProfileDataTest::RUN_ALL_TESTS();
+  printf("%s\n", rc == 0 ? "PASS" : "FAIL");
+  return rc;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/profiler_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/profiler_unittest.cc
new file mode 100644
index 000000000..4c814c09f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/profiler_unittest.cc
@@ -0,0 +1,147 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// Does some simple arithmetic and a few libc routines, so we can profile it.
+// Define WITH_THREADS to add pthread functionality as well (otherwise, btw,
+// the num_threads argument to this program is ingored).
+
+#include "config_for_unittests.h"
+#include 
+#include 
+#ifdef HAVE_UNISTD_H
+#include                  // for fork()
+#endif
+#include                // for wait()
+#include "gperftools/profiler.h"
+#include "base/simple_mutex.h"
+#include "tests/testutil.h"
+
+static volatile int result = 0;
+static int g_iters = 0;   // argv[1]
+
+Mutex mutex(Mutex::LINKER_INITIALIZED);
+
+static void test_other_thread() {
+#ifndef NO_THREADS
+  ProfilerRegisterThread();
+
+  int i, m;
+  char b[128];
+  MutexLock ml(&mutex);
+  for (m = 0; m < 1000000; ++m) {          // run millions of times
+    for (i = 0; i < g_iters; ++i ) {
+      result ^= i;
+    }
+    snprintf(b, sizeof(b), "other: %d", result);  // get some libc action
+  }
+#endif
+}
+
+static void test_main_thread() {
+  int i, m;
+  char b[128];
+  MutexLock ml(&mutex);
+  for (m = 0; m < 1000000; ++m) {          // run millions of times
+    for (i = 0; i < g_iters; ++i ) {
+      result ^= i;
+    }
+    snprintf(b, sizeof(b), "same: %d", result);  // get some libc action
+  }
+}
+
+int main(int argc, char** argv) {
+  if ( argc <= 1 ) {
+    fprintf(stderr, "USAGE: %s  [num_threads] [filename]\n", argv[0]);
+    fprintf(stderr, "   iters: How many million times to run the XOR test.\n");
+    fprintf(stderr, "   num_threads: how many concurrent threads.\n");
+    fprintf(stderr, "                0 or 1 for single-threaded mode,\n");
+    fprintf(stderr, "                -# to fork instead of thread.\n");
+    fprintf(stderr, "   filename: The name of the output profile.\n");
+    fprintf(stderr, ("             If you don't specify, set CPUPROFILE "
+                     "in the environment instead!\n"));
+    return 1;
+  }
+
+  g_iters = atoi(argv[1]);
+  int num_threads = 1;
+  const char* filename = NULL;
+  if (argc > 2) {
+    num_threads = atoi(argv[2]);
+  }
+  if (argc > 3) {
+    filename = argv[3];
+  }
+
+  if (filename) {
+    ProfilerStart(filename);
+  }
+
+  test_main_thread();
+
+  ProfilerFlush();                           // just because we can
+
+  // The other threads, if any, will run only half as long as the main thread
+  if(num_threads > 0) {
+    RunManyThreads(test_other_thread, num_threads);
+  } else {
+  // Or maybe they asked to fork.  The fork test is only interesting
+  // when we use CPUPROFILE to name, so check for that
+#ifdef HAVE_UNISTD_H
+    for (; num_threads < 0; ++num_threads) {   // - to fork
+      if (filename) {
+        printf("FORK test only makes sense when no filename is specified.\n");
+        return 2;
+      }
+      switch (fork()) {
+        case -1:
+          printf("FORK failed!\n");
+          return 1;
+        case 0:             // child
+          return execl(argv[0], argv[0], argv[1], NULL);
+        default:
+          wait(NULL);       // we'll let the kids run one at a time
+      }
+    }
+#else
+    fprintf(stderr, "%s was compiled without support for fork() and exec()\n", argv[0]);
+#endif
+  }
+
+  test_main_thread();
+
+  if (filename) {
+    ProfilerStop();
+  }
+
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/profiler_unittest.sh b/trunk/3rdparty/gperftools-2-fit/src/tests/profiler_unittest.sh
new file mode 100755
index 000000000..4085f2cd0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/profiler_unittest.sh
@@ -0,0 +1,269 @@
+#!/bin/sh
+
+# Copyright (c) 2005, Google Inc.
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# ---
+# Author: Craig Silverstein
+#
+# Runs the 4 profiler unittests and makes sure their profiles look
+# appropriate.  We expect two commandline args, as described below.
+#
+# We run under the assumption that if $PROFILER1 is run with no
+# arguments, it prints a usage line of the form
+#   USAGE:  [...]
+#
+# This is because libtool sometimes turns the 'executable' into a
+# shell script which runs an actual binary somewhere else.
+
+# We expect BINDIR and PPROF_PATH to be set in the environment.
+# If not, we set them to some reasonable values
+BINDIR="${BINDIR:-.}"
+PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}"
+
+if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then
+  echo "USAGE: $0 [unittest dir] [path to pprof]"
+  echo "       By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH"
+  exit 1
+fi
+
+TMPDIR=/tmp/profile_info
+
+UNITTEST_DIR=${1:-$BINDIR}
+PPROF=${2:-$PPROF_PATH}
+
+# We test the sliding-window functionality of the cpu-profile reader
+# by using a small stride, forcing lots of reads.
+PPROF_FLAGS="--test_stride=128"
+
+PROFILER1="$UNITTEST_DIR/profiler1_unittest"
+PROFILER2="$UNITTEST_DIR/profiler2_unittest"
+PROFILER3="$UNITTEST_DIR/profiler3_unittest"
+PROFILER4="$UNITTEST_DIR/profiler4_unittest"
+
+# Unfortunately, for us, libtool can replace executables with a shell
+# script that does some work before calling the 'real' executable
+# under a different name.  We need the 'real' executable name to run
+# pprof on it.  We've constructed all the binaries used in this
+# unittest so when they are called with no arguments, they report
+# their argv[0], which is the real binary name.
+Realname() {
+  "$1" 2>&1 | awk '{print $2; exit;}'
+}
+
+PROFILER1_REALNAME=`Realname "$PROFILER1"`
+PROFILER2_REALNAME=`Realname "$PROFILER2"`
+PROFILER3_REALNAME=`Realname "$PROFILER3"`
+PROFILER4_REALNAME=`Realname "$PROFILER4"`
+
+# It's meaningful to the profiler, so make sure we know its state
+unset CPUPROFILE
+
+# Some output/logging in the profiler can cause issues when running the unit
+# tests. For example, logging a warning when the profiler is detected as being
+# present but no CPUPROFILE is specified in the environment. Especially when
+# we are checking for a silent run or specific timing constraints are being
+# checked. So set the env variable signifying that we are running in a unit
+# test environment.
+PERFTOOLS_UNITTEST=1 
+
+rm -rf "$TMPDIR"
+mkdir "$TMPDIR" || exit 2
+
+num_failures=0
+
+RegisterFailure() {
+  num_failures=`expr $num_failures + 1`
+}
+
+# Takes two filenames representing profiles, with their executable scripts,
+# and a multiplier, and verifies that the 'contentful' functions in each
+# profile take the same time (possibly scaled by the given multiplier). It
+# used to be "same" meant within 50%, after adding an noise-reducing X units
+# to each value.  But even that would often spuriously fail, so now it's
+# "both non-zero". We're pretty forgiving.
+VerifySimilar() {
+  prof1="$TMPDIR/$1"
+  exec1="$2"
+  prof2="$TMPDIR/$3"
+  exec2="$4"
+  mult="$5"
+
+  # We are careful not to put exec1 and exec2 in quotes, because if
+  # they are the empty string, it means we want to use the 1-arg
+  # version of pprof.
+  mthread1=`"$PPROF" $PPROF_FLAGS $exec1 "$prof1" | grep test_main_thread | awk '{print $1}'`
+  mthread2=`"$PPROF" $PPROF_FLAGS $exec2 "$prof2" | grep test_main_thread | awk '{print $1}'`
+  mthread1_plus=`expr $mthread1 + 5`
+  mthread2_plus=`expr $mthread2 + 5`
+  if [ -z "$mthread1" ] || [ -z "$mthread2" ] || \
+     [ "$mthread1" -le 0 -o "$mthread2" -le 0 ]
+#    || [ `expr $mthread1_plus \* $mult` -gt `expr $mthread2_plus \* 2` -o \
+#         `expr $mthread1_plus \* $mult \* 2` -lt `expr $mthread2_plus` ]
+  then
+    echo
+    echo ">>> profile on $exec1 vs $exec2 with multiplier $mult failed:"
+    echo "Actual times (in profiling units) were '$mthread1' vs. '$mthread2'"
+    echo
+    RegisterFailure
+  fi
+}
+
+# Takes two filenames representing profiles, and optionally their
+# executable scripts (these may be empty if the profiles include
+# symbols), and verifies that the two profiles are identical.
+VerifyIdentical() {
+  prof1="$TMPDIR/$1"
+  exec1="$2"
+  prof2="$TMPDIR/$3"
+  exec2="$4"
+
+  # We are careful not to put exec1 and exec2 in quotes, because if
+  # they are the empty string, it means we want to use the 1-arg
+  # version of pprof.
+  "$PPROF" $PPROF_FLAGS $exec1 "$prof1" > "$TMPDIR/out1"
+  "$PPROF" $PPROF_FLAGS $exec2 "$prof2" > "$TMPDIR/out2"
+  diff=`diff "$TMPDIR/out1" "$TMPDIR/out2"`
+
+  if [ ! -z "$diff" ]; then
+    echo
+    echo ">>> profile doesn't match, args: $exec1 $prof1 vs. $exec2 $prof2"
+    echo ">>> Diff:"
+    echo "$diff"
+    echo
+    RegisterFailure
+  fi
+}
+
+# Takes a filename representing a profile, with its executable,
+# and a multiplier, and verifies that the main-thread function takes
+# the same amount of time as the other-threads function (possibly scaled
+# by the given multiplier).  Figuring out the multiplier can be tricky,
+# since by design the main thread runs twice as long as each of the
+# 'other' threads!  It used to be "same" meant within 50%, after adding an 
+# noise-reducing X units to each value.  But even that would often
+# spuriously fail, so now it's "both non-zero".  We're pretty forgiving.
+VerifyAcrossThreads() {
+  prof1="$TMPDIR/$1"
+  # We need to run the script with no args to get the actual exe name
+  exec1="$2"
+  mult="$3"
+
+  # We are careful not to put exec1 in quotes, because if it is the
+  # empty string, it means we want to use the 1-arg version of pprof.
+  mthread=`$PPROF $PPROF_FLAGS $exec1 "$prof1" | grep test_main_thread | awk '{print $1}'`
+  othread=`$PPROF $PPROF_FLAGS $exec1 "$prof1" | grep test_other_thread | awk '{print $1}'`
+  if [ -z "$mthread" ] || [ -z "$othread" ] || \
+     [ "$mthread" -le 0 -o "$othread" -le 0 ]
+#    || [ `expr $mthread \* $mult \* 3` -gt `expr $othread \* 10` -o \
+#         `expr $mthread \* $mult \* 10` -lt `expr $othread \* 3` ]
+  then
+    echo
+    echo ">>> profile on $exec1 (main vs thread) with multiplier $mult failed:"
+    echo "Actual times (in profiling units) were '$mthread' vs. '$othread'"
+    echo
+    RegisterFailure
+  fi
+}
+
+echo
+echo ">>> WARNING <<<"
+echo "This test looks at timing information to determine correctness."
+echo "If your system is loaded, the test may spuriously fail."
+echo "If the test does fail with an 'Actual times' error, try running again."
+echo
+
+# profiler1 is a non-threaded version
+"$PROFILER1" 50 1 "$TMPDIR/p1" || RegisterFailure
+"$PROFILER1" 100 1 "$TMPDIR/p2" || RegisterFailure
+VerifySimilar p1 "$PROFILER1_REALNAME" p2 "$PROFILER1_REALNAME" 2
+
+# Verify the same thing works if we statically link
+"$PROFILER2" 50 1 "$TMPDIR/p3" || RegisterFailure
+"$PROFILER2" 100 1 "$TMPDIR/p4" || RegisterFailure
+VerifySimilar p3 "$PROFILER2_REALNAME" p4 "$PROFILER2_REALNAME" 2
+
+# Verify the same thing works if we specify via CPUPROFILE
+CPUPROFILE="$TMPDIR/p5" "$PROFILER2" 50 || RegisterFailure
+CPUPROFILE="$TMPDIR/p6" "$PROFILER2" 100 || RegisterFailure
+VerifySimilar p5 "$PROFILER2_REALNAME" p6 "$PROFILER2_REALNAME" 2
+
+CPUPROFILE="$TMPDIR/p5b" "$PROFILER3" 30 || RegisterFailure
+CPUPROFILE="$TMPDIR/p5c" "$PROFILER3" 60 || RegisterFailure
+VerifySimilar p5b "$PROFILER3_REALNAME" p5c "$PROFILER3_REALNAME" 2
+
+# Now try what happens when we use threads
+"$PROFILER3" 30 2 "$TMPDIR/p7" || RegisterFailure
+"$PROFILER3" 60 2 "$TMPDIR/p8" || RegisterFailure
+VerifySimilar p7 "$PROFILER3_REALNAME" p8 "$PROFILER3_REALNAME" 2
+
+"$PROFILER4" 30 2 "$TMPDIR/p9" || RegisterFailure
+"$PROFILER4" 60 2 "$TMPDIR/p10" || RegisterFailure
+VerifySimilar p9 "$PROFILER4_REALNAME" p10 "$PROFILER4_REALNAME" 2
+
+# More threads!
+"$PROFILER4" 25 3 "$TMPDIR/p9" || RegisterFailure
+"$PROFILER4" 50 3 "$TMPDIR/p10" || RegisterFailure
+VerifySimilar p9 "$PROFILER4_REALNAME" p10 "$PROFILER4_REALNAME" 2
+
+# Compare how much time the main thread takes compared to the other threads
+# Recall the main thread runs twice as long as the other threads, by design.
+"$PROFILER4" 20 4 "$TMPDIR/p11" || RegisterFailure
+VerifyAcrossThreads p11 "$PROFILER4_REALNAME" 2
+
+# Test symbol save and restore
+"$PROFILER1" 50 1 "$TMPDIR/p12" || RegisterFailure
+"$PPROF" $PPROF_FLAGS "$PROFILER1_REALNAME" "$TMPDIR/p12" --raw \
+    >"$TMPDIR/p13" 2>/dev/null || RegisterFailure
+VerifyIdentical p12 "$PROFILER1_REALNAME" p13 "" || RegisterFailure
+
+"$PROFILER3" 30 2 "$TMPDIR/p14" || RegisterFailure
+"$PPROF" $PPROF_FLAGS "$PROFILER3_REALNAME" "$TMPDIR/p14" --raw \
+    >"$TMPDIR/p15" 2>/dev/null || RegisterFailure
+VerifyIdentical p14 "$PROFILER3_REALNAME" p15 "" || RegisterFailure
+
+# Test using ITIMER_REAL instead of ITIMER_PROF.
+env CPUPROFILE_REALTIME=1 "$PROFILER3" 30 2 "$TMPDIR/p16" || RegisterFailure
+env CPUPROFILE_REALTIME=1 "$PROFILER3" 60 2 "$TMPDIR/p17" || RegisterFailure
+VerifySimilar p16 "$PROFILER3_REALNAME" p17 "$PROFILER3_REALNAME" 2
+
+
+# Make sure that when we have a process with a fork, the profiles don't
+# clobber each other
+CPUPROFILE="$TMPDIR/pfork" "$PROFILER1" 1 -2 || RegisterFailure
+n=`ls $TMPDIR/pfork* | wc -l`
+if [ $n != 3 ]; then
+  echo "FORK test FAILED: expected 3 profiles (for main + 2 children), found $n"
+  num_failures=`expr $num_failures + 1`
+fi
+
+rm -rf "$TMPDIR"      # clean up
+
+echo "Tests finished with $num_failures failures"
+exit $num_failures
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/raw_printer_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/raw_printer_test.cc
new file mode 100644
index 000000000..2c7be6ac0
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/raw_printer_test.cc
@@ -0,0 +1,64 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright 2009 Google Inc. All Rights Reserved.
+// Author: sanjay@google.com (Sanjay Ghemawat)
+//
+// Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+#include "raw_printer.h"
+#include 
+#include 
+#include "base/logging.h"
+
+using std::string;
+
+#define TEST(a, b)  void TEST_##a##_##b()
+#define RUN_TEST(a, b)  TEST_##a##_##b()
+
+TEST(RawPrinter, Empty) {
+  char buffer[1];
+  base::RawPrinter printer(buffer, arraysize(buffer));
+  CHECK_EQ(0, printer.length());
+  CHECK_EQ(string(""), buffer);
+  CHECK_EQ(0, printer.space_left());
+  printer.Printf("foo");
+  CHECK_EQ(string(""), string(buffer));
+  CHECK_EQ(0, printer.length());
+  CHECK_EQ(0, printer.space_left());
+}
+
+TEST(RawPrinter, PartiallyFilled) {
+  char buffer[100];
+  base::RawPrinter printer(buffer, arraysize(buffer));
+  printer.Printf("%s %s", "hello", "world");
+  CHECK_EQ(string("hello world"), string(buffer));
+  CHECK_EQ(11, printer.length());
+  CHECK_LT(0, printer.space_left());
+}
+
+TEST(RawPrinter, Truncated) {
+  char buffer[3];
+  base::RawPrinter printer(buffer, arraysize(buffer));
+  printer.Printf("%d", 12345678);
+  CHECK_EQ(string("12"), string(buffer));
+  CHECK_EQ(2, printer.length());
+  CHECK_EQ(0, printer.space_left());
+}
+
+TEST(RawPrinter, ExactlyFilled) {
+  char buffer[12];
+  base::RawPrinter printer(buffer, arraysize(buffer));
+  printer.Printf("%s %s", "hello", "world");
+  CHECK_EQ(string("hello world"), string(buffer));
+  CHECK_EQ(11, printer.length());
+  CHECK_EQ(0, printer.space_left());
+}
+
+int main(int argc, char **argv) {
+  RUN_TEST(RawPrinter, Empty);
+  RUN_TEST(RawPrinter, PartiallyFilled);
+  RUN_TEST(RawPrinter, Truncated);
+  RUN_TEST(RawPrinter, ExactlyFilled);
+  printf("PASS\n");
+  return 0;   // 0 means success
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/realloc_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/realloc_unittest.cc
new file mode 100644
index 000000000..a4ea17ca4
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/realloc_unittest.cc
@@ -0,0 +1,125 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2004, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Test realloc() functionality
+
+#include "config_for_unittests.h"
+#include                      // for assert
+#include 
+#include                      // for size_t, NULL
+#include                      // for free, malloc, realloc
+#include                     // for min
+#include "base/logging.h"
+
+using std::min;
+
+
+// Fill a buffer of the specified size with a predetermined pattern
+static void Fill(unsigned char* buffer, int n) {
+  for (int i = 0; i < n; i++) {
+    buffer[i] = (i & 0xff);
+  }
+}
+
+// Check that the specified buffer has the predetermined pattern
+// generated by Fill()
+static bool Valid(unsigned char* buffer, int n) {
+  for (int i = 0; i < n; i++) {
+    if (buffer[i] != (i & 0xff)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+// Return the next interesting size/delta to check.  Returns -1 if no more.
+static int NextSize(int size) {
+  if (size < 100) {
+    return size+1;
+  } else if (size < 100000) {
+    // Find next power of two
+    int power = 1;
+    while (power < size) {
+      power <<= 1;
+    }
+
+    // Yield (power-1, power, power+1)
+    if (size < power-1) {
+      return power-1;
+    } else if (size == power-1) {
+      return power;
+    } else {
+      assert(size == power);
+      return power+1;
+    }
+  } else {
+    return -1;
+  }
+}
+
+int main(int argc, char** argv) {
+  for (int src_size = 0; src_size >= 0; src_size = NextSize(src_size)) {
+    for (int dst_size = 0; dst_size >= 0; dst_size = NextSize(dst_size)) {
+      unsigned char* src = (unsigned char*) malloc(src_size);
+      Fill(src, src_size);
+      unsigned char* dst = (unsigned char*) realloc(src, dst_size);
+      CHECK(Valid(dst, min(src_size, dst_size)));
+      Fill(dst, dst_size);
+      CHECK(Valid(dst, dst_size));
+      if (dst != NULL) free(dst);
+    }
+  }
+
+  // Now make sure realloc works correctly even when we overflow the
+  // packed cache, so some entries are evicted from the cache.
+  // The cache has 2^12 entries, keyed by page number.
+  const int kNumEntries = 1 << 14;
+  int** p = (int**)malloc(sizeof(*p) * kNumEntries);
+  int sum = 0;
+  for (int i = 0; i < kNumEntries; i++) {
+    p[i] = (int*)malloc(8192);   // no page size is likely to be bigger
+    p[i][1000] = i;              // use memory deep in the heart of p
+  }
+  for (int i = 0; i < kNumEntries; i++) {
+    p[i] = (int*)realloc(p[i], 9000);
+  }
+  for (int i = 0; i < kNumEntries; i++) {
+    sum += p[i][1000];
+    free(p[i]);
+  }
+  CHECK_EQ(kNumEntries/2 * (kNumEntries - 1), sum);  // assume kNE is even
+  free(p);
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/sampler_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/sampler_test.cc
new file mode 100644
index 000000000..4095d6af4
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/sampler_test.cc
@@ -0,0 +1,631 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// All Rights Reserved.
+//
+// Author: Daniel Ford
+//
+// Checks basic properties of the sampler
+
+#include "config_for_unittests.h"
+#include         // defines posix_memalign
+#include          // for the printf at the end
+#if defined HAVE_STDINT_H
+#include              // to get uintptr_t
+#elif defined HAVE_INTTYPES_H
+#include            // another place uintptr_t might be defined
+#endif
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include "base/logging.h"
+#include "base/commandlineflags.h"
+#include "sampler.h"       // The Sampler class being tested
+
+using std::sort;
+using std::min;
+using std::max;
+using std::vector;
+using std::abs;
+
+vector g_testlist;  // the tests to run
+
+#define TEST(a, b)                                      \
+  struct Test_##a##_##b {                               \
+    Test_##a##_##b() { g_testlist.push_back(&Run); }    \
+    static void Run();                                  \
+  };                                                    \
+  static Test_##a##_##b g_test_##a##_##b;               \
+  void Test_##a##_##b::Run()
+
+
+static int RUN_ALL_TESTS() {
+  vector::const_iterator it;
+  for (it = g_testlist.begin(); it != g_testlist.end(); ++it) {
+    (*it)();   // The test will error-exit if there's a problem.
+  }
+  fprintf(stderr, "\nPassed %d tests\n\nPASS\n", (int)g_testlist.size());
+  return 0;
+}
+
+#undef LOG   // defined in base/logging.h
+// Ideally, we'd put the newline at the end, but this hack puts the
+// newline at the end of the previous log message, which is good enough :-)
+#define LOG(level)  std::cerr << "\n"
+
+static std::string StringPrintf(const char* format, ...) {
+  char buf[256];   // should be big enough for all logging
+  va_list ap;
+  va_start(ap, format);
+  perftools_vsnprintf(buf, sizeof(buf), format, ap);
+  va_end(ap);
+  return buf;
+}
+
+namespace {
+template class scoped_array {
+ public:
+  scoped_array(T* p) : p_(p) { }
+  ~scoped_array() { delete[] p_; }
+  const T* get() const { return p_; }
+  T* get() { return p_; }
+  T& operator[](int i) { return p_[i]; }
+ private:
+  T* p_;
+};
+}
+
+// Note that these tests are stochastic.
+// This mean that the chance of correct code passing the test is,
+// in the case of 5 standard deviations:
+// kSigmas=5:    ~99.99994267%
+// in the case of 4 standard deviations:
+// kSigmas=4:    ~99.993666%
+static const double kSigmas = 4;
+static const size_t kSamplingInterval = 512*1024;
+
+// Tests that GetSamplePeriod returns the expected value
+// which is 1<<19
+TEST(Sampler, TestGetSamplePeriod) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  uint64_t sample_period;
+  sample_period = sampler.GetSamplePeriod();
+  CHECK_GT(sample_period, 0);
+}
+
+// Tests of the quality of the random numbers generated
+// This uses the Anderson Darling test for uniformity.
+// See "Evaluating the Anderson-Darling Distribution" by Marsaglia
+// for details.
+
+// Short cut version of ADinf(z), z>0 (from Marsaglia)
+// This returns the p-value for Anderson Darling statistic in
+// the limit as n-> infinity. For finite n, apply the error fix below.
+double AndersonDarlingInf(double z) {
+  if (z < 2) {
+    return exp(-1.2337141 / z) / sqrt(z) * (2.00012 + (0.247105 -
+                (0.0649821 - (0.0347962 - (0.011672 - 0.00168691
+                * z) * z) * z) * z) * z);
+  }
+  return exp( - exp(1.0776 - (2.30695 - (0.43424 - (0.082433 -
+                    (0.008056 - 0.0003146 * z) * z) * z) * z) * z));
+}
+
+// Corrects the approximation error in AndersonDarlingInf for small values of n
+// Add this to AndersonDarlingInf to get a better approximation
+// (from Marsaglia)
+double AndersonDarlingErrFix(int n, double x) {
+  if (x > 0.8) {
+    return (-130.2137 + (745.2337 - (1705.091 - (1950.646 -
+            (1116.360 - 255.7844 * x) * x) * x) * x) * x) / n;
+  }
+  double cutoff = 0.01265 + 0.1757 / n;
+  double t;
+  if (x < cutoff) {
+    t = x / cutoff;
+    t = sqrt(t) * (1 - t) * (49 * t - 102);
+    return t * (0.0037 / (n * n) + 0.00078 / n + 0.00006) / n;
+  } else {
+    t = (x - cutoff) / (0.8 - cutoff);
+    t = -0.00022633 + (6.54034 - (14.6538 - (14.458 - (8.259 - 1.91864
+          * t) * t) * t) * t) * t;
+    return t * (0.04213 + 0.01365 / n) / n;
+  }
+}
+
+// Returns the AndersonDarling p-value given n and the value of the statistic
+double AndersonDarlingPValue(int n, double z) {
+  double ad = AndersonDarlingInf(z);
+  double errfix = AndersonDarlingErrFix(n, ad);
+  return ad + errfix;
+}
+
+double AndersonDarlingStatistic(int n, double* random_sample) {
+  double ad_sum = 0;
+  for (int i = 0; i < n; i++) {
+    ad_sum += (2*i + 1) * log(random_sample[i] * (1 - random_sample[n-1-i]));
+  }
+  double ad_statistic = - n - 1/static_cast(n) * ad_sum;
+  return ad_statistic;
+}
+
+// Tests if the array of doubles is uniformly distributed.
+// Returns the p-value of the Anderson Darling Statistic
+// for the given set of sorted random doubles
+// See "Evaluating the Anderson-Darling Distribution" by
+// Marsaglia and Marsaglia for details.
+double AndersonDarlingTest(int n, double* random_sample) {
+  double ad_statistic = AndersonDarlingStatistic(n, random_sample);
+  LOG(INFO) << StringPrintf("AD stat = %f, n=%d\n", ad_statistic, n);
+  double p = AndersonDarlingPValue(n, ad_statistic);
+  return p;
+}
+
+// Test the AD Test. The value of the statistic should go to zero as n->infty
+// Not run as part of regular tests
+void ADTestTest(int n) {
+  scoped_array random_sample(new double[n]);
+  for (int i = 0; i < n; i++) {
+    random_sample[i] = (i+0.01)/n;
+  }
+  sort(random_sample.get(), random_sample.get() + n);
+  double ad_stat = AndersonDarlingStatistic(n, random_sample.get());
+  LOG(INFO) << StringPrintf("Testing the AD test. n=%d, ad_stat = %f",
+                            n, ad_stat);
+}
+
+// Print the CDF of the distribution of the Anderson-Darling Statistic
+// Used for checking the Anderson-Darling Test
+// Not run as part of regular tests
+void ADCDF() {
+  for (int i = 1; i < 40; i++) {
+    double x = i/10.0;
+    LOG(INFO) << "x= " << x << "  adpv= "
+              << AndersonDarlingPValue(100, x) << ", "
+              << AndersonDarlingPValue(1000, x);
+  }
+}
+
+// Testing that NextRandom generates uniform
+// random numbers.
+// Applies the Anderson-Darling test for uniformity
+void TestNextRandom(int n) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  uint64_t x = 1;
+  // This assumes that the prng returns 48 bit numbers
+  uint64_t max_prng_value = static_cast(1)<<48;
+  // Initialize
+  for (int i = 1; i <= 20; i++) {  // 20 mimics sampler.Init()
+    x = sampler.NextRandom(x);
+  }
+  scoped_array int_random_sample(new uint64_t[n]);
+  // Collect samples
+  for (int i = 0; i < n; i++) {
+    int_random_sample[i] = x;
+    x = sampler.NextRandom(x);
+  }
+  // First sort them...
+  sort(int_random_sample.get(), int_random_sample.get() + n);
+  scoped_array random_sample(new double[n]);
+  // Convert them to uniform randoms (in the range [0,1])
+  for (int i = 0; i < n; i++) {
+    random_sample[i] = static_cast(int_random_sample[i])/max_prng_value;
+  }
+  // Now compute the Anderson-Darling statistic
+  double ad_pvalue = AndersonDarlingTest(n, random_sample.get());
+  LOG(INFO) << StringPrintf("pvalue for AndersonDarlingTest "
+                            "with n= %d is p= %f\n", n, ad_pvalue);
+  CHECK_GT(min(ad_pvalue, 1 - ad_pvalue), 0.0001);
+  //           << StringPrintf("prng is not uniform, %d\n", n);
+}
+
+
+TEST(Sampler, TestNextRandom_MultipleValues) {
+  TestNextRandom(10);  // Check short-range correlation
+  TestNextRandom(100);
+  TestNextRandom(1000);
+  TestNextRandom(10000);  // Make sure there's no systematic error
+}
+
+// Tests that PickNextSamplePeriod generates
+// geometrically distributed random numbers.
+// First converts to uniforms then applied the
+// Anderson-Darling test for uniformity.
+void TestPickNextSample(int n) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  scoped_array int_random_sample(new uint64_t[n]);
+  int sample_period = sampler.GetSamplePeriod();
+  int ones_count = 0;
+  for (int i = 0; i < n; i++) {
+    int_random_sample[i] = sampler.PickNextSamplingPoint();
+    CHECK_GE(int_random_sample[i], 1);
+    if (int_random_sample[i] == 1) {
+      ones_count += 1;
+    }
+    CHECK_LT(ones_count, 4); // << " out of " << i << " samples.";
+  }
+  // First sort them...
+  sort(int_random_sample.get(), int_random_sample.get() + n);
+  scoped_array random_sample(new double[n]);
+  // Convert them to uniform random numbers
+  // by applying the geometric CDF
+  for (int i = 0; i < n; i++) {
+    random_sample[i] = 1 - exp(-static_cast(int_random_sample[i])
+                           / sample_period);
+  }
+  // Now compute the Anderson-Darling statistic
+  double geom_ad_pvalue = AndersonDarlingTest(n, random_sample.get());
+  LOG(INFO) << StringPrintf("pvalue for geometric AndersonDarlingTest "
+                             "with n= %d is p= %f\n", n, geom_ad_pvalue);
+  CHECK_GT(min(geom_ad_pvalue, 1 - geom_ad_pvalue), 0.0001);
+      //          << "PickNextSamplingPoint does not produce good "
+      //             "geometric/exponential random numbers\n";
+}
+
+TEST(Sampler, TestPickNextSample_MultipleValues) {
+  TestPickNextSample(10);  // Make sure the first few are good (enough)
+  TestPickNextSample(100);
+  TestPickNextSample(1000);
+  TestPickNextSample(10000);  // Make sure there's no systematic error
+}
+
+
+// This is superceeded by the Anderson-Darling Test
+// and it not run now.
+// Tests how fast nearby values are spread out with  LRand64
+// The purpose of this code is to determine how many
+// steps to apply to the seed during initialization
+void TestLRand64Spread() {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  uint64_t current_value;
+  printf("Testing LRand64 Spread\n");
+  for (int i = 1; i < 10; i++) {
+    printf("%d ", i);
+    current_value = i;
+    for (int j = 1; j < 100; j++) {
+      current_value = sampler.NextRandom(current_value);
+    }
+    LOG(INFO) << current_value;
+  }
+}
+
+
+// Futher tests
+
+bool CheckMean(size_t mean, int num_samples) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  size_t total = 0;
+  for (int i = 0; i < num_samples; i++) {
+    total += sampler.PickNextSamplingPoint();
+  }
+  double empirical_mean = total / static_cast(num_samples);
+  double expected_sd = mean / pow(num_samples * 1.0, 0.5);
+  return(fabs(mean-empirical_mean) < expected_sd * kSigmas);
+}
+
+// Prints a sequence so you can look at the distribution
+void OutputSequence(int sequence_length) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  size_t next_step;
+  for (int i = 0; i< sequence_length; i++) {
+    next_step = sampler.PickNextSamplingPoint();
+    LOG(INFO) << next_step;
+  }
+}
+
+
+double StandardDeviationsErrorInSample(
+              int total_samples, int picked_samples,
+              int alloc_size, int sampling_interval) {
+  double p = 1 - exp(-(static_cast(alloc_size) / sampling_interval));
+  double expected_samples = total_samples * p;
+  double sd = pow(p*(1-p)*total_samples, 0.5);
+  return((picked_samples - expected_samples) / sd);
+}
+
+TEST(Sampler, LargeAndSmallAllocs_CombinedTest) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  int counter_big = 0;
+  int counter_small = 0;
+  int size_big = 129*8*1024+1;
+  int size_small = 1024*8;
+  int num_iters = 128*4*8;
+  // Allocate in mixed chunks
+  for (int i = 0; i < num_iters; i++) {
+    if (!sampler.RecordAllocation(size_big)) {
+      counter_big += 1;
+    }
+    for (int i = 0; i < 129; i++) {
+      if (!sampler.RecordAllocation(size_small)) {
+        counter_small += 1;
+      }
+    }
+  }
+  // Now test that there are the right number of each
+  double large_allocs_sds =
+     StandardDeviationsErrorInSample(num_iters, counter_big,
+                                     size_big, kSamplingInterval);
+  double small_allocs_sds =
+     StandardDeviationsErrorInSample(num_iters*129, counter_small,
+                                     size_small, kSamplingInterval);
+  LOG(INFO) << StringPrintf("large_allocs_sds = %f\n", large_allocs_sds);
+  LOG(INFO) << StringPrintf("small_allocs_sds = %f\n", small_allocs_sds);
+  CHECK_LE(fabs(large_allocs_sds), kSigmas);
+  CHECK_LE(fabs(small_allocs_sds), kSigmas);
+}
+
+// Tests whether the mean is about right over 1000 samples
+TEST(Sampler, IsMeanRight) {
+  CHECK(CheckMean(kSamplingInterval, 1000));
+}
+
+// This flag is for the OldSampler class to use
+const int64 FLAGS_mock_tcmalloc_sample_parameter = 1<<19;
+
+// A cut down and slightly refactored version of the old Sampler
+class OldSampler {
+ public:
+  void Init(uint32_t seed);
+  void Cleanup() {}
+
+  // Record allocation of "k" bytes.  Return true iff allocation
+  // should be sampled
+  bool SampleAllocation(size_t k);
+
+  // Generate a geometric with mean 1M (or FLAG value)
+  void PickNextSample(size_t k);
+
+  // Initialize the statics for the Sample class
+  static void InitStatics() {
+    sample_period = 1048583;
+  }
+  size_t bytes_until_sample_;
+
+ private:
+  uint32_t rnd_;                   // Cheap random number generator
+  static uint64_t sample_period;
+  // Should be a prime just above a power of 2:
+  // 2, 5, 11, 17, 37, 67, 131, 257,
+  // 521, 1031, 2053, 4099, 8209, 16411,
+  // 32771, 65537, 131101, 262147, 524309, 1048583,
+  // 2097169, 4194319, 8388617, 16777259, 33554467
+};
+
+// Statics for OldSampler
+uint64_t OldSampler::sample_period;
+
+void OldSampler::Init(uint32_t seed) {
+  // Initialize PRNG -- run it for a bit to get to good values
+  if (seed != 0) {
+    rnd_ = seed;
+  } else {
+    rnd_ = 12345;
+  }
+  bytes_until_sample_ = 0;
+  for (int i = 0; i < 100; i++) {
+    PickNextSample(sample_period * 2);
+  }
+};
+
+// A cut-down version of the old PickNextSampleRoutine
+void OldSampler::PickNextSample(size_t k) {
+  // Make next "random" number
+  // x^32+x^22+x^2+x^1+1 is a primitive polynomial for random numbers
+  static const uint32_t kPoly = (1 << 22) | (1 << 2) | (1 << 1) | (1 << 0);
+  uint32_t r = rnd_;
+  rnd_ = (r << 1) ^ ((static_cast(r) >> 31) & kPoly);
+
+  // Next point is "rnd_ % (sample_period)".  I.e., average
+  // increment is "sample_period/2".
+  const int flag_value = FLAGS_mock_tcmalloc_sample_parameter;
+  static int last_flag_value = -1;
+
+  if (flag_value != last_flag_value) {
+    // There should be a spinlock here, but this code is
+    // for benchmarking only.
+    sample_period = 1048583;
+    last_flag_value = flag_value;
+  }
+
+  bytes_until_sample_ += rnd_ % sample_period;
+
+  if (k > (static_cast(-1) >> 2)) {
+    // If the user has asked for a huge allocation then it is possible
+    // for the code below to loop infinitely.  Just return (note that
+    // this throws off the sampling accuracy somewhat, but a user who
+    // is allocating more than 1G of memory at a time can live with a
+    // minor inaccuracy in profiling of small allocations, and also
+    // would rather not wait for the loop below to terminate).
+    return;
+  }
+
+  while (bytes_until_sample_ < k) {
+    // Increase bytes_until_sample_ by enough average sampling periods
+    // (sample_period >> 1) to allow us to sample past the current
+    // allocation.
+    bytes_until_sample_ += (sample_period >> 1);
+  }
+
+  bytes_until_sample_ -= k;
+}
+
+inline bool OldSampler::SampleAllocation(size_t k) {
+  if (bytes_until_sample_ < k) {
+    PickNextSample(k);
+    return true;
+  } else {
+    bytes_until_sample_ -= k;
+    return false;
+  }
+}
+
+// This checks that the stated maximum value for the
+// tcmalloc_sample_parameter flag never overflows bytes_until_sample_
+TEST(Sampler, bytes_until_sample_Overflow_Underflow) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  uint64_t one = 1;
+  // sample_parameter = 0;  // To test the edge case
+  uint64_t sample_parameter_array[4] = {0, 1, one<<19, one<<58};
+  for (int i = 0; i < 4; i++) {
+    uint64_t sample_parameter = sample_parameter_array[i];
+    LOG(INFO) << "sample_parameter = " << sample_parameter;
+    double sample_scaling = - log(2.0) * sample_parameter;
+    // Take the top 26 bits as the random number
+    // (This plus the 1<<26 sampling bound give a max step possible of
+    // 1209424308 bytes.)
+    const uint64_t prng_mod_power = 48;  // Number of bits in prng
+
+    // First, check the largest_prng value
+    uint64_t largest_prng_value = (static_cast(1)<<48) - 1;
+    double q = (largest_prng_value >> (prng_mod_power - 26)) + 1.0;
+    LOG(INFO) << StringPrintf("q = %f\n", q);
+    LOG(INFO) << StringPrintf("log2(q) = %f\n", log(q)/log(2.0));
+    uint64_t smallest_sample_step
+        = static_cast(min(log2(q) - 26, 0.0)
+                                * sample_scaling + 1);
+    LOG(INFO) << "Smallest sample step is " << smallest_sample_step;
+    uint64_t cutoff = static_cast(10)
+                      * (sample_parameter/(one<<24) + 1);
+    LOG(INFO) << "Acceptable value is < " << cutoff;
+    // This checks that the answer is "small" and positive
+    CHECK_LE(smallest_sample_step, cutoff);
+
+    // Next, check with the smallest prng value
+    uint64_t smallest_prng_value = 0;
+    q = (smallest_prng_value >> (prng_mod_power - 26)) + 1.0;
+    LOG(INFO) << StringPrintf("q = %f\n", q);
+    uint64_t largest_sample_step
+        = static_cast(min(log2(q) - 26, 0.0)
+                                * sample_scaling + 1);
+    LOG(INFO) << "Largest sample step is " << largest_sample_step;
+    CHECK_LE(largest_sample_step, one<<63);
+    CHECK_GE(largest_sample_step, smallest_sample_step);
+  }
+}
+
+
+// Test that NextRand is in the right range.  Unfortunately, this is a
+// stochastic test which could miss problems.
+TEST(Sampler, NextRand_range) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  uint64_t one = 1;
+  // The next number should be (one << 48) - 1
+  uint64_t max_value = (one << 48) - 1;
+  uint64_t x = (one << 55);
+  int n = 22;  // 27;
+  LOG(INFO) << "Running sampler.NextRandom 1<<" << n << " times";
+  for (int i = 1; i <= (1<>27); i++) {  // 20 mimics sampler.Init()
+    rnd = sampler.NextRandom(rnd);
+    CHECK_LE(rnd, max_value);
+    double q = (rnd >> (prng_mod_power - 26)) + 1.0;
+    CHECK_GE(q, 0); // << rnd << "  " << prng_mod_power;
+  }
+  // Test some potentially out of bounds value for rnd
+  for (int i = 1; i <= 63; i++) {
+    rnd = one << i;
+    double q = (rnd >> (prng_mod_power - 26)) + 1.0;
+    LOG(INFO) << "rnd = " << rnd << " i=" << i << " q=" << q;
+    CHECK_GE(q, 0);
+    //        << " rnd=" << rnd << "  i=" << i << " prng_mod_power" << prng_mod_power;
+  }
+}
+
+void test_arithmetic(uint64_t rnd) {
+  const uint64_t prng_mod_power = 48;  // Number of bits in prng
+  uint64_t shifted_rnd = rnd >> (prng_mod_power - 26);
+  CHECK_GE(shifted_rnd, 0);
+  CHECK_LT(shifted_rnd, (1<<26));
+  LOG(INFO) << shifted_rnd;
+  LOG(INFO) << static_cast(shifted_rnd);
+  CHECK_GE(static_cast(static_cast(shifted_rnd)), 0);
+      //      << " rnd=" << rnd << "  srnd=" << shifted_rnd;
+  CHECK_GE(static_cast(shifted_rnd), 0);
+      //      << " rnd=" << rnd << "  srnd=" << shifted_rnd;
+  double q = static_cast(shifted_rnd) + 1.0;
+  CHECK_GT(q, 0);
+}
+
+// Tests certain arithmetic operations to make sure they compute what we
+// expect them too (for testing across different platforms)
+// know bad values under with -c dbg --cpu piii for _some_ binaries:
+// rnd=227453640600554
+// shifted_rnd=54229173
+// (hard to reproduce)
+TEST(Sampler, arithmetic_2) {
+  uint64_t rnd = 227453640600554LL;
+  test_arithmetic(rnd);
+}
+
+
+// It's not really a test, but it's good to know
+TEST(Sample, size_of_class) {
+  tcmalloc::Sampler sampler;
+  sampler.Init(1);
+  LOG(INFO) << "Size of Sampler class is: " << sizeof(tcmalloc::Sampler);
+  LOG(INFO) << "Size of Sampler object is: " << sizeof(sampler);
+}
+
+// Make sure sampling is enabled, or the tests won't work right.
+DECLARE_int64(tcmalloc_sample_parameter);
+
+int main(int argc, char **argv) {
+  if (FLAGS_tcmalloc_sample_parameter == 0)
+    FLAGS_tcmalloc_sample_parameter = 524288;
+  return RUN_ALL_TESTS();
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/sampling_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/sampling_test.cc
new file mode 100644
index 000000000..729aba8a7
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/sampling_test.cc
@@ -0,0 +1,83 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// This tests ReadStackTraces and ReadGrowthStackTraces.  It does this
+// by doing a bunch of allocations and then calling those functions.
+// A driver shell-script can call this, and then call pprof, and
+// verify the expected output.  The output is written to
+// argv[1].heap and argv[1].growth
+
+#include "config_for_unittests.h"
+#include 
+#include 
+#include 
+#include "base/logging.h"
+#include 
+
+using std::string;
+
+extern "C" void* AllocateAllocate() ATTRIBUTE_NOINLINE;
+
+extern "C" void* AllocateAllocate() {
+  // The VLOG's are mostly to discourage inlining
+  VLOG(1, "Allocating some more");
+  void* p = malloc(10000);
+  VLOG(1, "Done allocating");
+  return p;
+}
+
+static void WriteStringToFile(const string& s, const string& filename) {
+  FILE* fp = fopen(filename.c_str(), "w");
+  fwrite(s.data(), 1, s.length(), fp);
+  fclose(fp);
+}
+
+int main(int argc, char** argv) {
+  if (argc < 2) {
+    fprintf(stderr, "USAGE: %s \n", argv[0]);
+    exit(1);
+  }
+  for (int i = 0; i < 8000; i++) {
+    AllocateAllocate();
+  }
+
+  string s;
+  MallocExtension::instance()->GetHeapSample(&s);
+  WriteStringToFile(s, string(argv[1]) + ".heap");
+
+  s.clear();
+  MallocExtension::instance()->GetHeapGrowthStacks(&s);
+  WriteStringToFile(s, string(argv[1]) + ".growth");
+
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/sampling_test.sh b/trunk/3rdparty/gperftools-2-fit/src/tests/sampling_test.sh
new file mode 100755
index 000000000..2a5842681
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/sampling_test.sh
@@ -0,0 +1,94 @@
+#!/bin/sh
+
+# Copyright (c) 2008, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# ---
+# Author: Craig Silverstein
+#
+# This is a test that tcmalloc creates, and pprof reads, sampling data
+# correctly: both for the heap profile (ReadStackTraces) and for
+# growth in the heap sized (ReadGrowthStackTraces).
+
+BINDIR="${BINDIR:-.}"
+PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}"
+
+if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then
+  echo "USAGE: $0 [unittest dir] [path to pprof]"
+  echo "       By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH"
+  exit 1
+fi
+
+SAMPLING_TEST="${1:-$BINDIR/sampling_test}"
+PPROF="${2:-$PPROF_PATH}"
+OUTDIR="/tmp/sampling_test_dir"
+
+# libtool is annoying, and puts the actual executable in a different
+# directory, replacing the seeming-executable with a shell script.
+# We use the error output of sampling_test to indicate its real location
+SAMPLING_TEST_BINARY=`"$SAMPLING_TEST" 2>&1 | awk '/USAGE/ {print $2; exit;}'`
+
+# A kludge for cygwin.  Unfortunately, 'test -f' says that 'foo' exists
+# even when it doesn't, and only foo.exe exists.  Other unix utilities
+# (like nm) need you to say 'foo.exe'.  We use one such utility, cat, to
+# see what the *real* binary name is.
+if ! cat "$SAMPLING_TEST_BINARY" >/dev/null 2>&1; then
+  SAMPLING_TEST_BINARY="$SAMPLING_TEST_BINARY".exe
+fi
+
+die() {    # runs the command given as arguments, and then dies.
+    echo "FAILED.  Output from $@"
+    echo "----"
+    "$@"
+    echo "----"
+    exit 1
+}
+
+rm -rf "$OUTDIR" || die "Unable to delete $OUTDIR"
+mkdir "$OUTDIR" || die "Unable to create $OUTDIR"
+
+# This puts the output into out.heap and out.growth.  It allocates
+# 8*10^7 bytes of memory, which is 76M.  Because we sample, the
+# estimate may be a bit high or a bit low: we accept anything from
+# 50M to 99M.
+"$SAMPLING_TEST" "$OUTDIR/out"
+
+echo "Testing heap output..."
+"$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.heap" \
+   | grep '[5-9][0-9]\.[0-9][ 0-9.%]*_*AllocateAllocate' >/dev/null \
+   || die "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.heap"
+echo "OK"
+
+echo "Testing growth output..."
+"$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.growth" \
+   | grep '[5-9][0-9]\.[0-9][ 0-9.%]*_*AllocateAllocate' >/dev/null \
+   || die "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.growth"
+echo "OK"
+
+echo "PASS"
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/simple_compat_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/simple_compat_test.cc
new file mode 100644
index 000000000..24583a04b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/simple_compat_test.cc
@@ -0,0 +1,71 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2012, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// This just verifies that we can compile code that #includes stuff
+// via the backwards-compatibility 'google/' #include-dir.  It does
+// not include config.h on purpose, to better simulate a perftools
+// client.
+
+#include 
+#include 
+
+#define GPERFTOOLS_SUPPRESS_LEGACY_WARNING
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+// We don't link in -lprofiler for this test, so be sure not to make
+// any function calls that require the cpu-profiler code.  The
+// heap-profiler is ok.
+
+HeapLeakChecker::Disabler* heap_checker_h;
+void (*heap_profiler_h)(const char*) = &HeapProfilerStart;
+MallocExtension::Ownership malloc_extension_h;
+MallocExtension_Ownership malloc_extension_c_h;
+MallocHook::NewHook* malloc_hook_h;
+MallocHook_NewHook* malloc_hook_c_h;
+ProfilerOptions* profiler_h;
+int (*stacktrace_h)(void**, int, int) = &GetStackTrace;
+void* (*tcmalloc_h)(size_t) = &tc_new;
+
+int main(int argc, char** argv) {
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/stack_trace_table_test.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/stack_trace_table_test.cc
new file mode 100644
index 000000000..393ebbe12
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/stack_trace_table_test.cc
@@ -0,0 +1,93 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright 2009 Google Inc. All Rights Reserved.
+// Author: fikes@google.com (Andrew Fikes)
+//
+// Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+
+#include "config_for_unittests.h"
+#include    // for puts()
+#include "stack_trace_table.h"
+#include "base/logging.h"
+#include "base/spinlock.h"
+#include "static_vars.h"
+
+#undef ARRAYSIZE   // may be defined on, eg, windows
+#define ARRAYSIZE(a)  ( sizeof(a) / sizeof(*(a)) )
+
+static void CheckTracesAndReset(tcmalloc::StackTraceTable* table,
+                        const uintptr_t* expected, int len) {
+  void** entries = table->ReadStackTracesAndClear();
+  for (int i = 0; i < len; ++i) {
+    CHECK_EQ(reinterpret_cast(entries[i]), expected[i]);
+  }
+  delete[] entries;
+}
+
+static void AddTrace(tcmalloc::StackTraceTable* table,
+                     const tcmalloc::StackTrace& t) {
+  // Normally we'd need this lock, but since the test is single-threaded
+  // we don't.  I comment it out on windows because the DLL-decl thing
+  // is really annoying in this case.
+#ifndef _MSC_VER
+  SpinLockHolder h(tcmalloc::Static::pageheap_lock());
+#endif
+  table->AddTrace(t);
+}
+
+int main(int argc, char **argv) {
+  tcmalloc::StackTraceTable table;
+
+  // Empty table
+  CHECK_EQ(table.depth_total(), 0);
+  CHECK_EQ(table.bucket_total(), 0);
+  static const uintptr_t k1[] = {0};
+  CheckTracesAndReset(&table, k1, ARRAYSIZE(k1));
+
+  tcmalloc::StackTrace t1;
+  t1.size = static_cast(1024);
+  t1.depth = static_cast(2);
+  t1.stack[0] = reinterpret_cast(1);
+  t1.stack[1] = reinterpret_cast(2);
+
+
+  tcmalloc::StackTrace t2;
+  t2.size = static_cast(512);
+  t2.depth = static_cast(2);
+  t2.stack[0] = reinterpret_cast(2);
+  t2.stack[1] = reinterpret_cast(1);
+
+  // Table w/ just t1
+  AddTrace(&table, t1);
+  CHECK_EQ(table.depth_total(), 2);
+  CHECK_EQ(table.bucket_total(), 1);
+  static const uintptr_t k2[] = {1, 1024, 2, 1, 2, 0};
+  CheckTracesAndReset(&table, k2, ARRAYSIZE(k2));
+
+  // Table w/ t1, t2
+  AddTrace(&table, t1);
+  AddTrace(&table, t2);
+  CHECK_EQ(table.depth_total(), 4);
+  CHECK_EQ(table.bucket_total(), 2);
+  static const uintptr_t k3[] = {1, 512, 2, 2, 1, 1, 1024, 2, 1, 2, 0};
+  CheckTracesAndReset(&table, k3, ARRAYSIZE(k3));
+
+  // Table w/ t1, t3
+  // Same stack as t1, but w/ different size
+  tcmalloc::StackTrace t3;
+  t3.size = static_cast(2);
+  t3.depth = static_cast(2);
+  t3.stack[0] = reinterpret_cast(1);
+  t3.stack[1] = reinterpret_cast(2);
+
+  AddTrace(&table, t1);
+  AddTrace(&table, t3);
+  CHECK_EQ(table.depth_total(), 4);
+  CHECK_EQ(table.bucket_total(), 2);
+  static const uintptr_t k5[] = {1, 2, 2, 1, 2, 1, 1024, 2, 1, 2, 0};
+  CheckTracesAndReset(&table, k5, ARRAYSIZE(k5));
+
+  puts("PASS");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/stacktrace_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/stacktrace_unittest.cc
new file mode 100644
index 000000000..e55a6322e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/stacktrace_unittest.cc
@@ -0,0 +1,298 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config_for_unittests.h"
+#ifdef HAVE_EXECINFO_H
+#include 
+#endif
+#include 
+#include 
+
+// On those architectures we can and should test if backtracing with
+// ucontext and from signal handler works
+#if __GNUC__ && __linux__ && (__x86_64__ || __aarch64__ || __riscv)
+#include 
+#define TEST_UCONTEXT_BITS 1
+#endif
+
+#include "base/commandlineflags.h"
+#include "base/logging.h"
+#include 
+#include "tests/testutil.h"
+
+namespace {
+
+// Obtain a backtrace, verify that the expected callers are present in the
+// backtrace, and maybe print the backtrace to stdout.
+
+// The sequence of functions whose return addresses we expect to see in the
+// backtrace.
+const int BACKTRACE_STEPS = 6;
+
+struct AddressRange {
+  const void *start, *end;
+};
+
+// Expected function [start,end] range.
+AddressRange expected_range[BACKTRACE_STEPS];
+
+#if __GNUC__
+// Using GCC extension: address of a label can be taken with '&&label'.
+// Start should be a label somewhere before recursive call, end somewhere
+// after it.
+#define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange)           \
+  do {                                                                   \
+    (prange)->start = &&start_label;                                     \
+    (prange)->end = &&end_label;                                         \
+    CHECK_LT((prange)->start, (prange)->end);                            \
+  } while (0)
+// This macro expands into "unmovable" code (opaque to GCC), and that
+// prevents GCC from moving a_label up or down in the code.
+// Without it, there is no code following the 'end' label, and GCC
+// (4.3.1, 4.4.0) thinks it safe to assign &&end an address that is before
+// the recursive call.
+#define DECLARE_ADDRESS_LABEL(a_label)                                   \
+  a_label: do { __asm__ __volatile__(""); } while (0)
+// Gcc 4.4.0 may split function into multiple chunks, and the chunk
+// performing recursive call may end up later in the code then the return
+// instruction (this actually happens with FDO).
+// Adjust function range from __builtin_return_address.
+#define ADJUST_ADDRESS_RANGE_FROM_RA(prange)                             \
+  do {                                                                   \
+    void *ra = __builtin_return_address(0);                              \
+    CHECK_LT((prange)->start, ra);                                       \
+    if (ra > (prange)->end) {                                            \
+      printf("Adjusting range from %p..%p to %p..%p\n",                  \
+             (prange)->start, (prange)->end,                             \
+             (prange)->start, ra);                                       \
+      (prange)->end = ra;                                                \
+    }                                                                    \
+  } while (0)
+#else
+// Assume the Check* functions below are not longer than 256 bytes.
+#define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange)           \
+  do {                                                                   \
+    (prange)->start = reinterpret_cast(&fn);               \
+    (prange)->end = reinterpret_cast(&fn) + 256;           \
+  } while (0)
+#define DECLARE_ADDRESS_LABEL(a_label) do { } while (0)
+#define ADJUST_ADDRESS_RANGE_FROM_RA(prange) do { } while (0)
+#endif  // __GNUC__
+
+
+//-----------------------------------------------------------------------//
+
+void CheckRetAddrIsInFunction(void *ret_addr, const AddressRange &range)
+{
+  CHECK_GE(ret_addr, range.start);
+  CHECK_LE(ret_addr, range.end);
+}
+
+//-----------------------------------------------------------------------//
+
+#if TEST_UCONTEXT_BITS
+
+struct get_stack_trace_args {
+	int *size_ptr;
+	void **result;
+	int max_depth;
+	uintptr_t where;
+} gst_args;
+
+static
+void SignalHandler(int dummy, siginfo_t *si, void* ucv) {
+	auto uc = static_cast(ucv);
+
+#ifdef __riscv
+	uc->uc_mcontext.__gregs[REG_PC] = gst_args.where;
+#elif __aarch64__
+	uc->uc_mcontext.pc = gst_args.where;
+#else
+	uc->uc_mcontext.gregs[REG_RIP] = gst_args.where;
+#endif
+
+	*gst_args.size_ptr = GetStackTraceWithContext(
+		gst_args.result,
+		gst_args.max_depth,
+		2,
+		uc);
+}
+
+int ATTRIBUTE_NOINLINE CaptureLeafUContext(void **stack, int stack_len) {
+  INIT_ADDRESS_RANGE(CheckStackTraceLeaf, start, end, &expected_range[0]);
+  DECLARE_ADDRESS_LABEL(start);
+
+  int size;
+
+  printf("Capturing stack trace from signal's ucontext\n");
+  struct sigaction sa;
+  memset(&sa, 0, sizeof(sa));
+  sa.sa_sigaction = SignalHandler;
+  sa.sa_flags = SA_SIGINFO | SA_RESETHAND;
+  int rv = sigaction(SIGSEGV, &sa, nullptr);
+  CHECK(rv == 0);
+
+  gst_args.size_ptr = &size;
+  gst_args.result = stack;
+  gst_args.max_depth = stack_len;
+  gst_args.where = reinterpret_cast(noopt(&&after));
+
+  // now, "write" to null pointer and trigger sigsegv to run signal
+  // handler. It'll then change PC to after, as if we jumped one line
+  // below.
+  *noopt(reinterpret_cast(0)) = 0;
+  // this is not reached, but gcc gets really odd if we don't actually
+  // use computed goto.
+  static void* jump_target = &&after;
+  goto *noopt(&jump_target);
+
+after:
+  printf("Obtained %d stack frames.\n", size);
+  CHECK_GE(size, 1);
+  CHECK_LE(size, stack_len);
+
+  DECLARE_ADDRESS_LABEL(end);
+
+  return size;
+}
+
+#endif  // TEST_UCONTEXT_BITS
+
+int ATTRIBUTE_NOINLINE CaptureLeafPlain(void **stack, int stack_len) {
+  INIT_ADDRESS_RANGE(CheckStackTraceLeaf, start, end, &expected_range[0]);
+  DECLARE_ADDRESS_LABEL(start);
+
+  int size = GetStackTrace(stack, stack_len, 0);
+
+  printf("Obtained %d stack frames.\n", size);
+  CHECK_GE(size, 1);
+  CHECK_LE(size, stack_len);
+
+  DECLARE_ADDRESS_LABEL(end);
+
+  return size;
+}
+
+void ATTRIBUTE_NOINLINE CheckStackTrace(int);
+
+int (*leaf_capture_fn)(void**, int) = CaptureLeafPlain;
+
+void ATTRIBUTE_NOINLINE CheckStackTraceLeaf(int i) {
+  const int STACK_LEN = 20;
+  void *stack[STACK_LEN];
+  int size;
+
+  ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[1]);
+
+  size = leaf_capture_fn(stack, STACK_LEN);
+
+#ifdef HAVE_EXECINFO_H
+  {
+    char **strings = backtrace_symbols(stack, size);
+    for (int i = 0; i < size; i++)
+      printf("%s %p\n", strings[i], stack[i]);
+    printf("CheckStackTrace() addr: %p\n", &CheckStackTrace);
+    free(strings);
+  }
+#endif
+
+  for (int i = 0, j = 0; i < BACKTRACE_STEPS; i++, j++) {
+    if (i == 1 && j == 1) {
+      // this is expected to be our function for which we don't
+      // establish bounds. So skip.
+      j++;
+    }
+    printf("Backtrace %d: expected: %p..%p  actual: %p ... ",
+           i, expected_range[i].start, expected_range[i].end, stack[j]);
+    fflush(stdout);
+    CheckRetAddrIsInFunction(stack[j], expected_range[i]);
+    printf("OK\n");
+  }
+}
+
+//-----------------------------------------------------------------------//
+
+/* Dummy functions to make the backtrace more interesting. */
+void ATTRIBUTE_NOINLINE CheckStackTrace4(int i) {
+  ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[2]);
+  INIT_ADDRESS_RANGE(CheckStackTrace4, start, end, &expected_range[1]);
+  DECLARE_ADDRESS_LABEL(start);
+  for (int j = i; j >= 0; j--)
+    CheckStackTraceLeaf(j);
+  DECLARE_ADDRESS_LABEL(end);
+}
+void ATTRIBUTE_NOINLINE CheckStackTrace3(int i) {
+  ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[3]);
+  INIT_ADDRESS_RANGE(CheckStackTrace3, start, end, &expected_range[2]);
+  DECLARE_ADDRESS_LABEL(start);
+  for (int j = i; j >= 0; j--)
+    CheckStackTrace4(j);
+  DECLARE_ADDRESS_LABEL(end);
+}
+void ATTRIBUTE_NOINLINE CheckStackTrace2(int i) {
+  ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[4]);
+  INIT_ADDRESS_RANGE(CheckStackTrace2, start, end, &expected_range[3]);
+  DECLARE_ADDRESS_LABEL(start);
+  for (int j = i; j >= 0; j--)
+    CheckStackTrace3(j);
+  DECLARE_ADDRESS_LABEL(end);
+}
+void ATTRIBUTE_NOINLINE CheckStackTrace1(int i) {
+  ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[5]);
+  INIT_ADDRESS_RANGE(CheckStackTrace1, start, end, &expected_range[4]);
+  DECLARE_ADDRESS_LABEL(start);
+  for (int j = i; j >= 0; j--)
+    CheckStackTrace2(j);
+  DECLARE_ADDRESS_LABEL(end);
+}
+void ATTRIBUTE_NOINLINE CheckStackTrace(int i) {
+  INIT_ADDRESS_RANGE(CheckStackTrace, start, end, &expected_range[5]);
+  DECLARE_ADDRESS_LABEL(start);
+  for (int j = i; j >= 0; j--) {
+    CheckStackTrace1(j);
+  }
+  DECLARE_ADDRESS_LABEL(end);
+}
+
+}  // namespace
+//-----------------------------------------------------------------------//
+
+int main(int argc, char ** argv) {
+  CheckStackTrace(0);
+  printf("PASS\n");
+
+#if TEST_UCONTEXT_BITS
+  leaf_capture_fn = CaptureLeafUContext;
+  CheckStackTrace(0);
+  printf("PASS\n");
+#endif  // TEST_UCONTEXT_BITS
+
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/system-alloc_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/system-alloc_unittest.cc
new file mode 100644
index 000000000..fd199e2ca
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/system-alloc_unittest.cc
@@ -0,0 +1,161 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Arun Sharma
+
+#include "config_for_unittests.h"
+
+#include "system-alloc.h"
+
+#include 
+#if defined HAVE_STDINT_H
+#include              // to get uintptr_t
+#elif defined HAVE_INTTYPES_H
+#include            // another place uintptr_t might be defined
+#endif
+#include 
+
+#include 
+#include 
+
+#include "base/logging.h"                // for Check_GEImpl, Check_LTImpl, etc
+#include "common.h"                      // for kAddressBits
+#include "gperftools/malloc_extension.h" // for MallocExtension::instance
+#include "gperftools/tcmalloc.h"
+#include "tests/testutil.h"
+
+class ArraySysAllocator : public SysAllocator {
+public:
+  // Was this allocator invoked at least once?
+  bool invoked_;
+
+  ArraySysAllocator() : SysAllocator() {
+    ptr_ = 0;
+    invoked_ = false;
+  }
+
+  void* Alloc(size_t size, size_t *actual_size, size_t alignment) {
+    invoked_ = true;
+
+    if (size > kArraySize) {
+      return NULL;
+    }
+
+    void *result = &array_[ptr_];
+    uintptr_t ptr = reinterpret_cast(result);
+
+    if (actual_size) {
+      *actual_size = size;
+    }
+
+    // Try to get more memory for alignment
+    size_t extra = alignment - (ptr & (alignment-1));
+    size += extra;
+    CHECK_LT(ptr_ + size, kArraySize);
+
+    if ((ptr & (alignment-1)) != 0) {
+      ptr += alignment - (ptr & (alignment-1));
+    }
+
+    ptr_ += size;
+    return reinterpret_cast(ptr);
+  }
+
+  void DumpStats() {
+  }
+
+private:
+  static const int kArraySize = 8 * 1024 * 1024;
+  char array_[kArraySize];
+  // We allocate the next chunk from here
+  int ptr_;
+
+};
+const int ArraySysAllocator::kArraySize;
+ArraySysAllocator a;
+
+static void TestBasicInvoked() {
+  MallocExtension::instance()->SetSystemAllocator(&a);
+
+  // An allocation size that is likely to trigger the system allocator.
+  // XXX: this is implementation specific.
+  char *p =  noopt(new char[1024 * 1024]);
+  delete [] p;
+
+  // Make sure that our allocator was invoked.
+  CHECK(a.invoked_);
+}
+
+#if 0  // could port this to various OSs, but won't bother for now
+TEST(AddressBits, CpuVirtualBits) {
+  // Check that kAddressBits is as least as large as either the number of bits
+  // in a pointer or as the number of virtual bits handled by the processor.
+  // To be effective this test must be run on each processor model.
+  const int kPointerBits = 8 * sizeof(void*);
+  const int kImplementedVirtualBits = NumImplementedVirtualBits();
+
+  CHECK_GE(kAddressBits, std::min(kImplementedVirtualBits, kPointerBits));
+}
+#endif
+
+static void TestBasicRetryFailTest() {
+  // Check with the allocator still works after a failed allocation.
+  //
+  // There is no way to call malloc and guarantee it will fail.  malloc takes a
+  // size_t parameter and the C++ standard does not constrain the size of
+  // size_t.  For example, consider an implementation where size_t is 32 bits
+  // and pointers are 64 bits.
+  //
+  // It is likely, though, that sizeof(size_t) == sizeof(void*).  In that case,
+  // the first allocation here might succeed but the second allocation must
+  // fail.
+  //
+  // If the second allocation succeeds, you will have to rewrite or
+  // disable this test.
+  // The weird parens are to avoid macro-expansion of 'max' on windows.
+  const size_t kHugeSize = (std::numeric_limits::max)() / 2;
+  void* p1 = noopt(malloc(kHugeSize));
+  void* p2 = noopt(malloc(kHugeSize));
+  CHECK(p2 == NULL);
+  if (p1 != NULL) free(p1);
+
+  char* q = noopt(new char[1024]);
+  CHECK(q != NULL);
+  delete [] q;
+}
+
+int main(int argc, char** argv) {
+  TestBasicInvoked();
+  TestBasicRetryFailTest();
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_large_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_large_unittest.cc
new file mode 100644
index 000000000..02b8569e2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_large_unittest.cc
@@ -0,0 +1,139 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Michael Chastain
+//
+// This is a unit test for large allocations in malloc and friends.
+// "Large" means "so large that they overflow the address space".
+// For 32 bits, this means allocations near 2^32 bytes and 2^31 bytes.
+// For 64 bits, this means allocations near 2^64 bytes and 2^63 bytes.
+
+#include                      // for size_t, NULL
+#include                      // for malloc, free, realloc
+#include 
+#include                           // for set, etc
+
+#include "base/logging.h"               // for operator<<, CHECK, etc
+#include "gperftools/tcmalloc.h"
+#include "tests/testutil.h"
+
+using std::set;
+
+// Alloc a size that should always fail.
+
+void TryAllocExpectFail(size_t size) {
+  void* p1 = noopt(malloc(size));
+  CHECK(p1 == NULL);
+
+  void* p2 = noopt(malloc(1));
+  CHECK(p2 != NULL);
+
+  void* p3 = noopt(realloc(p2, size));
+  CHECK(p3 == NULL);
+
+  free(p2);
+}
+
+// Alloc a size that might work and might fail.
+// If it does work, touch some pages.
+
+void TryAllocMightFail(size_t size) {
+  unsigned char* p = static_cast(noopt(malloc(size)));
+  if (p != NULL) {
+    static const size_t kPoints = 1024;
+
+    for ( size_t i = 0; i < kPoints; ++i ) {
+      p[i * (size / kPoints)] = static_cast(i);
+    }
+
+    for ( size_t i = 0; i < kPoints; ++i ) {
+      CHECK(p[i * (size / kPoints)] == static_cast(i));
+    }
+
+    p[size-1] = 'M';
+    CHECK(p[size-1] == 'M');
+  }
+
+  free(noopt(p));
+}
+
+int main (int argc, char** argv) {
+  // Allocate some 0-byte objects.  They better be unique.
+  // 0 bytes is not large but it exercises some paths related to
+  // large-allocation code.
+  {
+    static const int kZeroTimes = 1024;
+    printf("Test malloc(0) x %d\n", kZeroTimes);
+    set p_set;
+    for ( int i = 0; i < kZeroTimes; ++i ) {
+      char* p = new char;
+      CHECK(p != NULL);
+      CHECK(p_set.find(p) == p_set.end());
+      p_set.insert(p_set.end(), p);
+    }
+    // Just leak the memory.
+  }
+
+  // Grab some memory so that some later allocations are guaranteed to fail.
+  printf("Test small malloc\n");
+  void* p_small = noopt(malloc(4*1048576));
+  CHECK(p_small != NULL);
+
+  // Test sizes up near the maximum size_t.
+  // These allocations test the wrap-around code.
+  printf("Test malloc(0 - N)\n");
+  const size_t zero = 0;
+  static const size_t kMinusNTimes = 16384;
+  for ( size_t i = 1; i < kMinusNTimes; ++i ) {
+    TryAllocExpectFail(zero - i);
+  }
+
+  // Test sizes a bit smaller.
+  // The small malloc above guarantees that all these return NULL.
+  printf("Test malloc(0 - 1048576 - N)\n");
+  static const size_t kMinusMBMinusNTimes = 16384;
+  for ( size_t i = 0; i < kMinusMBMinusNTimes; ++i) {
+    TryAllocExpectFail(zero - 1048576 - i);
+  }
+
+  // Test sizes at half of size_t.
+  // These might or might not fail to allocate.
+  printf("Test malloc(max/2 +- N)\n");
+  static const size_t kHalfPlusMinusTimes = 64;
+  const size_t half = (zero - 2) / 2 + 1;
+  for ( size_t i = 0; i < kHalfPlusMinusTimes; ++i) {
+    TryAllocMightFail(half - i);
+    TryAllocMightFail(half + i);
+  }
+
+  printf("PASS\n");
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_unittest.cc
new file mode 100644
index 000000000..658772f9f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_unittest.cc
@@ -0,0 +1,1669 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Unittest for the TCMalloc implementation.
+//
+// * The test consists of a set of threads.
+// * Each thread maintains a set of allocated objects, with
+//   a bound on the total amount of data in the set.
+// * Each allocated object's contents are generated by
+//   hashing the object pointer, and a generation count
+//   in the object.  This allows us to easily check for
+//   data corruption.
+// * At any given step, the thread can do any of the following:
+//     a. Allocate an object
+//     b. Increment an object's generation count and update
+//        its contents.
+//     c. Pass the object to another thread
+//     d. Free an object
+//   Also, at the end of every step, object(s) are freed to maintain
+//   the memory upper-bound.
+//
+// If this test is compiled with -DDEBUGALLOCATION, then we don't
+// run some tests that test the inner workings of tcmalloc and
+// break on debugallocation: that certain allocations are aligned
+// in a certain way (even though no standard requires it), and that
+// realloc() tries to minimize copying (which debug allocators don't
+// care about).
+
+#include "config_for_unittests.h"
+// Complicated ordering requirements.  tcmalloc.h defines (indirectly)
+// _POSIX_C_SOURCE, which it needs so stdlib.h defines posix_memalign.
+// unistd.h, on the other hand, requires _POSIX_C_SOURCE to be unset,
+// at least on FreeBSD, in order to define sbrk.  The solution
+// is to #include unistd.h first.  This is safe because unistd.h
+// doesn't sub-include stdlib.h, so we'll still get posix_memalign
+// when we #include stdlib.h.  Blah.
+#ifdef HAVE_UNISTD_H
+#include         // for testing sbrk hooks
+#endif
+#include "tcmalloc.h"      // must come early, to pick up posix_memalign
+#include 
+#include 
+#include 
+#ifdef HAVE_STDINT_H
+#include         // for intptr_t
+#endif
+#include      // for size_t
+#ifdef HAVE_FCNTL_H
+#include          // for open; used with mmap-hook test
+#endif
+#ifdef HAVE_MMAP
+#include       // for testing mmap hooks
+#endif
+#ifdef HAVE_MALLOC_H
+#include         // defines pvalloc/etc on cygwin
+#endif
+#include 
+#include 
+#include 
+#include 
+#include 
+#include "base/logging.h"
+#include "base/simple_mutex.h"
+#include "gperftools/malloc_hook.h"
+#include "gperftools/malloc_extension.h"
+#include "gperftools/nallocx.h"
+#include "gperftools/tcmalloc.h"
+#include "thread_cache.h"
+#include "system-alloc.h"
+#include "tests/testutil.h"
+
+// Windows doesn't define pvalloc and a few other obsolete unix
+// functions; nor does it define posix_memalign (which is not obsolete).
+#if defined(_WIN32)
+# define cfree free         // don't bother to try to test these obsolete fns
+# define valloc malloc
+# define pvalloc malloc
+// I'd like to map posix_memalign to _aligned_malloc, but _aligned_malloc
+// must be paired with _aligned_free (not normal free), which is too
+// invasive a change to how we allocate memory here.  So just bail
+static bool kOSSupportsMemalign = false;
+static inline void* Memalign(size_t align, size_t size) {
+  //LOG(FATAL) << "memalign not supported on windows";
+  exit(1);
+  return NULL;
+}
+static inline int PosixMemalign(void** ptr, size_t align, size_t size) {
+  //LOG(FATAL) << "posix_memalign not supported on windows";
+  exit(1);
+  return -1;
+}
+
+// OS X defines posix_memalign in some OS versions but not others;
+// it's confusing enough to check that it's easiest to just not to test.
+#elif defined(__APPLE__)
+static bool kOSSupportsMemalign = false;
+static inline void* Memalign(size_t align, size_t size) {
+  //LOG(FATAL) << "memalign not supported on OS X";
+  exit(1);
+  return NULL;
+}
+static inline int PosixMemalign(void** ptr, size_t align, size_t size) {
+  //LOG(FATAL) << "posix_memalign not supported on OS X";
+  exit(1);
+  return -1;
+}
+
+#else
+static bool kOSSupportsMemalign = true;
+static inline void* Memalign(size_t align, size_t size) {
+  return noopt(memalign(align, noopt(size)));
+}
+static inline int PosixMemalign(void** ptr, size_t align, size_t size) {
+  return noopt(posix_memalign(ptr, align, noopt(size)));
+}
+
+#endif
+
+#if defined(ENABLE_ALIGNED_NEW_DELETE)
+
+#define OVERALIGNMENT 64
+
+struct overaligned_type
+{
+#if defined(__GNUC__)
+  __attribute__((__aligned__(OVERALIGNMENT)))
+#elif defined(_MSC_VER)
+  __declspec(align(OVERALIGNMENT))
+#else
+  alignas(OVERALIGNMENT)
+#endif
+  unsigned char data[OVERALIGNMENT * 2]; // make the object size different from
+                                         // alignment to make sure the correct
+                                         // values are passed to the new/delete
+                                         // implementation functions
+};
+
+#endif // defined(ENABLE_ALIGNED_NEW_DELETE)
+
+// On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old
+// form of the name instead.
+#ifndef MAP_ANONYMOUS
+# define MAP_ANONYMOUS MAP_ANON
+#endif
+
+#define LOGSTREAM   stdout
+
+using std::vector;
+using std::string;
+
+DECLARE_double(tcmalloc_release_rate);
+DECLARE_int32(max_free_queue_size);     // in debugallocation.cc
+DECLARE_int64(tcmalloc_sample_parameter);
+
+struct OOMAbleSysAlloc : public SysAllocator {
+  SysAllocator *child;
+  int simulate_oom;
+
+  void* Alloc(size_t size, size_t* actual_size, size_t alignment) {
+    if (simulate_oom) {
+      return NULL;
+    }
+    return child->Alloc(size, actual_size, alignment);
+  }
+};
+
+static union {
+  char buf[sizeof(OOMAbleSysAlloc)];
+  void *ptr;
+} test_sys_alloc_space;
+
+static OOMAbleSysAlloc* get_test_sys_alloc() {
+  return reinterpret_cast(&test_sys_alloc_space);
+}
+
+void setup_oomable_sys_alloc() {
+  SysAllocator *def = MallocExtension::instance()->GetSystemAllocator();
+
+  OOMAbleSysAlloc *alloc = get_test_sys_alloc();
+  new (alloc) OOMAbleSysAlloc;
+  alloc->child = def;
+
+  MallocExtension::instance()->SetSystemAllocator(alloc);
+}
+
+namespace testing {
+
+static const int FLAGS_numtests = 50000;
+static const int FLAGS_log_every_n_tests = 50000; // log exactly once
+
+// Testing parameters
+static const int FLAGS_lgmaxsize = 16;   // lg() of the max size object to alloc
+static const int FLAGS_numthreads = 10;  // Number of threads
+static const int FLAGS_threadmb = 4;     // Max memory size allocated by thread
+static const int FLAGS_lg_max_memalign = 18; // lg of max alignment for memalign
+
+static const double FLAGS_memalign_min_fraction = 0;    // min expected%
+static const double FLAGS_memalign_max_fraction = 0.4;  // max expected%
+static const double FLAGS_memalign_max_alignment_ratio = 6;  // alignment/size
+
+// Weights of different operations
+static const int FLAGS_allocweight = 50;    // Weight for picking allocation
+static const int FLAGS_freeweight = 50;     // Weight for picking free
+static const int FLAGS_updateweight = 10;   // Weight for picking update
+static const int FLAGS_passweight = 1;      // Weight for passing object
+
+static const int kSizeBits = 8 * sizeof(size_t);
+static const size_t kMaxSize = ~static_cast(0);
+static const size_t kMaxSignedSize = ((size_t(1) << (kSizeBits-1)) - 1);
+
+static const size_t kNotTooBig = 100000;
+// We want an allocation that is definitely more than main memory.  OS
+// X has special logic to discard very big allocs before even passing
+// the request along to the user-defined memory allocator; we're not
+// interested in testing their logic, so we have to make sure we're
+// not *too* big.
+static const size_t kTooBig = kMaxSize - 100000;
+
+static int news_handled = 0;
+
+// Global array of threads
+class TesterThread;
+static TesterThread** threads;
+
+// To help with generating random numbers
+class TestHarness {
+ private:
+  // Information kept per type
+  struct Type {
+    string      name;
+    int         type;
+    int         weight;
+  };
+
+ public:
+  TestHarness(int seed)
+      : types_(new vector), total_weight_(0), num_tests_(0) {
+    srandom(seed);
+  }
+  ~TestHarness() {
+    delete types_;
+  }
+
+  // Add operation type with specified weight.  When starting a new
+  // iteration, an operation type is picked with probability
+  // proportional to its weight.
+  //
+  // "type" must be non-negative.
+  // "weight" must be non-negative.
+  void AddType(int type, int weight, const char* name);
+
+  // Call this to get the type of operation for the next iteration.
+  // It returns a random operation type from the set of registered
+  // operations.  Returns -1 if tests should finish.
+  int PickType();
+
+  // If n == 0, returns the next pseudo-random number in the range [0 .. 0]
+  // If n != 0, returns the next pseudo-random number in the range [0 .. n)
+  int Uniform(int n) {
+    if (n == 0) {
+      return random() * 0;
+    } else {
+      return random() % n;
+    }
+  }
+  // Pick "base" uniformly from range [0,max_log] and then return
+  // "base" random bits.  The effect is to pick a number in the range
+  // [0,2^max_log-1] with bias towards smaller numbers.
+  int Skewed(int max_log) {
+    const int base = random() % (max_log+1);
+    return random() % (1 << base);
+  }
+
+ private:
+  vector*         types_;         // Registered types
+  int                   total_weight_;  // Total weight of all types
+  int                   num_tests_;     // Num tests run so far
+};
+
+void TestHarness::AddType(int type, int weight, const char* name) {
+  Type t;
+  t.name = name;
+  t.type = type;
+  t.weight = weight;
+  types_->push_back(t);
+  total_weight_ += weight;
+}
+
+int TestHarness::PickType() {
+  if (num_tests_ >= FLAGS_numtests) return -1;
+  num_tests_++;
+
+  assert(total_weight_ > 0);
+  // This is a little skewed if total_weight_ doesn't divide 2^31, but it's close
+  int v = Uniform(total_weight_);
+  int i;
+  for (i = 0; i < types_->size(); i++) {
+    v -= (*types_)[i].weight;
+    if (v < 0) {
+      break;
+    }
+  }
+
+  assert(i < types_->size());
+  if ((num_tests_ % FLAGS_log_every_n_tests) == 0) {
+    fprintf(LOGSTREAM, "  Test %d out of %d: %s\n",
+            num_tests_, FLAGS_numtests, (*types_)[i].name.c_str());
+  }
+  return (*types_)[i].type;
+}
+
+class AllocatorState : public TestHarness {
+ public:
+  explicit AllocatorState(int seed) : TestHarness(seed), memalign_fraction_(0) {
+    if (kOSSupportsMemalign) {
+      CHECK_GE(FLAGS_memalign_max_fraction, 0);
+      CHECK_LE(FLAGS_memalign_max_fraction, 1);
+      CHECK_GE(FLAGS_memalign_min_fraction, 0);
+      CHECK_LE(FLAGS_memalign_min_fraction, 1);
+      double delta = FLAGS_memalign_max_fraction - FLAGS_memalign_min_fraction;
+      CHECK_GE(delta, 0);
+      memalign_fraction_ = (Uniform(10000)/10000.0 * delta +
+                            FLAGS_memalign_min_fraction);
+      //fprintf(LOGSTREAM, "memalign fraction: %f\n", memalign_fraction_);
+    }
+  }
+  virtual ~AllocatorState() {}
+
+  // Allocate memory.  Randomly choose between malloc() or posix_memalign().
+  void* alloc(size_t size) {
+    if (Uniform(100) < memalign_fraction_ * 100) {
+      // Try a few times to find a reasonable alignment, or fall back on malloc.
+      for (int i = 0; i < 5; i++) {
+        size_t alignment = 1 << Uniform(FLAGS_lg_max_memalign);
+        if (alignment >= sizeof(intptr_t) &&
+            (size < sizeof(intptr_t) ||
+             alignment < FLAGS_memalign_max_alignment_ratio * size)) {
+          void *result = reinterpret_cast(static_cast(0x1234));
+          int err = PosixMemalign(&result, alignment, size);
+          if (err != 0) {
+            CHECK_EQ(err, ENOMEM);
+          }
+          return err == 0 ? result : NULL;
+        }
+      }
+    }
+    return noopt(malloc(size));
+  }
+
+ private:
+  double memalign_fraction_;
+};
+
+
+// Info kept per thread
+class TesterThread {
+ private:
+  // Info kept per allocated object
+  struct Object {
+    char*       ptr;                    // Allocated pointer
+    int         size;                   // Allocated size
+    int         generation;             // Generation counter of object contents
+  };
+
+  Mutex                 lock_;          // For passing in another thread's obj
+  int                   id_;            // My thread id
+  AllocatorState        rnd_;           // For generating random numbers
+  vector        heap_;          // This thread's heap
+  vector        passed_;        // Pending objects passed from others
+  size_t                heap_size_;     // Current heap size
+  int                   locks_ok_;      // Number of OK TryLock() ops
+  int                   locks_failed_;  // Number of failed TryLock() ops
+
+  // Type of operations
+  enum Type { ALLOC, FREE, UPDATE, PASS };
+
+  // ACM minimal standard random number generator.  (re-entrant.)
+  class ACMRandom {
+    int32 seed_;
+   public:
+    explicit ACMRandom(int32 seed) { seed_ = seed; }
+    int32 Next() {
+      const int32 M = 2147483647L;   // 2^31-1
+      const int32 A = 16807;
+      // In effect, we are computing seed_ = (seed_ * A) % M, where M = 2^31-1
+      uint32 lo = A * (int32)(seed_ & 0xFFFF);
+      uint32 hi = A * (int32)((uint32)seed_ >> 16);
+      lo += (hi & 0x7FFF) << 16;
+      if (lo > M) {
+        lo &= M;
+        ++lo;
+      }
+      lo += hi >> 15;
+      if (lo > M) {
+        lo &= M;
+        ++lo;
+      }
+      return (seed_ = (int32) lo);
+    }
+  };
+
+ public:
+  TesterThread(int id)
+    : id_(id),
+      rnd_(id+1),
+      heap_size_(0),
+      locks_ok_(0),
+      locks_failed_(0) {
+  }
+
+  virtual ~TesterThread() {
+    if (FLAGS_verbose)
+      fprintf(LOGSTREAM, "Thread %2d: locks %6d ok; %6d trylocks failed\n",
+              id_, locks_ok_, locks_failed_);
+    if (locks_ok_ + locks_failed_ >= 1000) {
+      CHECK_LE(locks_failed_, locks_ok_ / 2);
+    }
+  }
+
+  virtual void Run() {
+    rnd_.AddType(ALLOC,  FLAGS_allocweight,   "allocate");
+    rnd_.AddType(FREE,   FLAGS_freeweight,    "free");
+    rnd_.AddType(UPDATE, FLAGS_updateweight,  "update");
+    rnd_.AddType(PASS,   FLAGS_passweight,    "pass");
+
+    while (true) {
+      AcquirePassedObjects();
+
+      switch (rnd_.PickType()) {
+        case ALLOC:   AllocateObject(); break;
+        case FREE:    FreeObject();     break;
+        case UPDATE:  UpdateObject();   break;
+        case PASS:    PassObject();     break;
+        case -1:      goto done;
+        default:      assert(NULL == "Unknown type");
+      }
+
+      ShrinkHeap();
+    }
+
+ done:
+    DeleteHeap();
+  }
+
+  // Allocate a new object
+  void AllocateObject() {
+    Object object;
+    object.size = rnd_.Skewed(FLAGS_lgmaxsize);
+    object.ptr = static_cast(rnd_.alloc(object.size));
+    CHECK(object.ptr);
+    object.generation = 0;
+    FillContents(&object);
+    heap_.push_back(object);
+    heap_size_ += object.size;
+  }
+
+  // Mutate a random object
+  void UpdateObject() {
+    if (heap_.empty()) return;
+    const int index = rnd_.Uniform(heap_.size());
+    CheckContents(heap_[index]);
+    heap_[index].generation++;
+    FillContents(&heap_[index]);
+  }
+
+  // Free a random object
+  void FreeObject() {
+    if (heap_.empty()) return;
+    const int index = rnd_.Uniform(heap_.size());
+    Object object = heap_[index];
+    CheckContents(object);
+    free(object.ptr);
+    heap_size_ -= object.size;
+    heap_[index] = heap_[heap_.size()-1];
+    heap_.pop_back();
+  }
+
+  // Delete all objects in the heap
+  void DeleteHeap() {
+    while (!heap_.empty()) {
+      FreeObject();
+    }
+  }
+
+  // Free objects until our heap is small enough
+  void ShrinkHeap() {
+    while (heap_size_ > FLAGS_threadmb << 20) {
+      assert(!heap_.empty());
+      FreeObject();
+    }
+  }
+
+  // Pass a random object to another thread
+  void PassObject() {
+    // Pick object to pass
+    if (heap_.empty()) return;
+    const int index = rnd_.Uniform(heap_.size());
+    Object object = heap_[index];
+    CheckContents(object);
+
+    // Pick thread to pass
+    const int tid = rnd_.Uniform(FLAGS_numthreads);
+    TesterThread* thread = threads[tid];
+
+    if (thread->lock_.TryLock()) {
+      // Pass the object
+      locks_ok_++;
+      thread->passed_.push_back(object);
+      thread->lock_.Unlock();
+      heap_size_ -= object.size;
+      heap_[index] = heap_[heap_.size()-1];
+      heap_.pop_back();
+    } else {
+      locks_failed_++;
+    }
+  }
+
+  // Grab any objects passed to this thread by another thread
+  void AcquirePassedObjects() {
+    // We do not create unnecessary contention by always using
+    // TryLock().  Plus we unlock immediately after swapping passed
+    // objects into a local vector.
+    vector copy;
+    { // Locking scope
+      if (!lock_.TryLock()) {
+        locks_failed_++;
+        return;
+      }
+      locks_ok_++;
+      swap(copy, passed_);
+      lock_.Unlock();
+    }
+
+    for (int i = 0; i < copy.size(); ++i) {
+      const Object& object = copy[i];
+      CheckContents(object);
+      heap_.push_back(object);
+      heap_size_ += object.size;
+    }
+  }
+
+  // Fill object contents according to ptr/generation
+  void FillContents(Object* object) {
+    ACMRandom r(reinterpret_cast(object->ptr) & 0x7fffffff);
+    for (int i = 0; i < object->generation; ++i) {
+      r.Next();
+    }
+    const char c = static_cast(r.Next());
+    memset(object->ptr, c, object->size);
+  }
+
+  // Check object contents
+  void CheckContents(const Object& object) {
+    ACMRandom r(reinterpret_cast(object.ptr) & 0x7fffffff);
+    for (int i = 0; i < object.generation; ++i) {
+      r.Next();
+    }
+
+    // For large objects, we just check a prefix/suffix
+    const char expected = static_cast(r.Next());
+    const int limit1 = object.size < 32 ? object.size : 32;
+    const int start2 = limit1 > object.size - 32 ? limit1 : object.size - 32;
+    for (int i = 0; i < limit1; ++i) {
+      CHECK_EQ(object.ptr[i], expected);
+    }
+    for (int i = start2; i < object.size; ++i) {
+      CHECK_EQ(object.ptr[i], expected);
+    }
+  }
+};
+
+static void RunThread(int thread_id) {
+  threads[thread_id]->Run();
+}
+
+static void TryHugeAllocation(size_t s, AllocatorState* rnd) {
+  void* p = rnd->alloc(noopt(s));
+  CHECK(p == NULL);   // huge allocation s should fail!
+}
+
+static void TestHugeAllocations(AllocatorState* rnd) {
+  // Check that asking for stuff tiny bit smaller than largest possible
+  // size returns NULL.
+  for (size_t i = 0; i < 70000; i += rnd->Uniform(20)) {
+    TryHugeAllocation(kMaxSize - i, rnd);
+  }
+  // Asking for memory sizes near signed/unsigned boundary (kMaxSignedSize)
+  // might work or not, depending on the amount of virtual memory.
+#ifndef DEBUGALLOCATION    // debug allocation takes forever for huge allocs
+  for (size_t i = 0; i < 100; i++) {
+    void* p = NULL;
+    p = rnd->alloc(kMaxSignedSize + i);
+    if (p) free(p);    // if: free(NULL) is not necessarily defined
+    p = rnd->alloc(kMaxSignedSize - i);
+    if (p) free(p);
+  }
+#endif
+
+  // Check that ReleaseFreeMemory has no visible effect (aka, does not
+  // crash the test):
+  MallocExtension* inst = MallocExtension::instance();
+  CHECK(inst);
+  inst->ReleaseFreeMemory();
+}
+
+static void TestCalloc(size_t n, size_t s, bool ok) {
+  char* p = reinterpret_cast(calloc(n, s));
+  if (FLAGS_verbose)
+    fprintf(LOGSTREAM, "calloc(%zx, %zx): %p\n", n, s, p);
+  if (!ok) {
+    CHECK(p == NULL);  // calloc(n, s) should not succeed
+  } else {
+    CHECK(p != NULL);  // calloc(n, s) should succeed
+    for (int i = 0; i < n*s; i++) {
+      CHECK(p[i] == '\0');
+    }
+    free(p);
+  }
+}
+
+// This makes sure that reallocing a small number of bytes in either
+// direction doesn't cause us to allocate new memory.
+static void TestRealloc() {
+#ifndef DEBUGALLOCATION  // debug alloc doesn't try to minimize reallocs
+  // When sampling, we always allocate in units of page-size, which
+  // makes reallocs of small sizes do extra work (thus, failing these
+  // checks).  Since sampling is random, we turn off sampling to make
+  // sure that doesn't happen to us here.
+  const int64 old_sample_parameter = FLAGS_tcmalloc_sample_parameter;
+  FLAGS_tcmalloc_sample_parameter = 0;   // turn off sampling
+
+  int start_sizes[] = { 100, 1000, 10000, 100000 };
+  int deltas[] = { 1, -2, 4, -8, 16, -32, 64, -128 };
+
+  for (int s = 0; s < sizeof(start_sizes)/sizeof(*start_sizes); ++s) {
+    void* p = noopt(malloc(start_sizes[s]));
+    CHECK(p);
+    // The larger the start-size, the larger the non-reallocing delta.
+    for (int d = 0; d < (s+1) * 2; ++d) {
+      void* new_p = noopt(realloc(p, start_sizes[s] + deltas[d]));
+      CHECK(p == new_p);  // realloc should not allocate new memory
+    }
+    // Test again, but this time reallocing smaller first.
+    for (int d = 0; d < s*2; ++d) {
+      void* new_p = noopt(realloc(p, start_sizes[s] - deltas[d]));
+      CHECK(p == new_p);  // realloc should not allocate new memory
+    }
+    free(p);
+  }
+  FLAGS_tcmalloc_sample_parameter = old_sample_parameter;
+#endif
+}
+
+static void TestNewHandler() {
+  ++news_handled;
+  throw std::bad_alloc();
+}
+
+static void TestOneNew(void* (*func)(size_t)) {
+  func = noopt(func);
+  // success test
+  try {
+    void* ptr = (*func)(kNotTooBig);
+    if (0 == ptr) {
+      fprintf(LOGSTREAM, "allocation should not have failed.\n");
+      abort();
+    }
+  } catch (...) {
+    fprintf(LOGSTREAM, "allocation threw unexpected exception.\n");
+    abort();
+  }
+
+  // failure test
+  // we should always receive a bad_alloc exception
+  try {
+    (*func)(kTooBig);
+    fprintf(LOGSTREAM, "allocation should have failed.\n");
+    abort();
+  } catch (const std::bad_alloc&) {
+    // correct
+  } catch (...) {
+    fprintf(LOGSTREAM, "allocation threw unexpected exception.\n");
+    abort();
+  }
+}
+
+static void TestNew(void* (*func)(size_t)) {
+  news_handled = 0;
+
+  // test without new_handler:
+  std::new_handler saved_handler = std::set_new_handler(0);
+  TestOneNew(func);
+
+  // test with new_handler:
+  std::set_new_handler(TestNewHandler);
+  TestOneNew(func);
+  if (news_handled != 1) {
+    fprintf(LOGSTREAM, "new_handler was not called.\n");
+    abort();
+  }
+  std::set_new_handler(saved_handler);
+}
+
+static void TestOneNothrowNew(void* (*func)(size_t, const std::nothrow_t&)) {
+  func = noopt(func);
+  // success test
+  try {
+    void* ptr = (*func)(kNotTooBig, std::nothrow);
+    if (0 == ptr) {
+      fprintf(LOGSTREAM, "allocation should not have failed.\n");
+      abort();
+    }
+  } catch (...) {
+    fprintf(LOGSTREAM, "allocation threw unexpected exception.\n");
+    abort();
+  }
+
+  // failure test
+  // we should always receive a bad_alloc exception
+  try {
+    if ((*func)(kTooBig, std::nothrow) != 0) {
+      fprintf(LOGSTREAM, "allocation should have failed.\n");
+      abort();
+    }
+  } catch (...) {
+    fprintf(LOGSTREAM, "nothrow allocation threw unexpected exception.\n");
+    abort();
+  }
+}
+
+static void TestNothrowNew(void* (*func)(size_t, const std::nothrow_t&)) {
+  news_handled = 0;
+
+  // test without new_handler:
+  std::new_handler saved_handler = std::set_new_handler(0);
+  TestOneNothrowNew(func);
+
+  // test with new_handler:
+  std::set_new_handler(TestNewHandler);
+  TestOneNothrowNew(func);
+  if (news_handled != 1) {
+    fprintf(LOGSTREAM, "nothrow new_handler was not called.\n");
+    abort();
+  }
+  std::set_new_handler(saved_handler);
+}
+
+
+// These are used as callbacks by the sanity-check.  Set* and Reset*
+// register the hook that counts how many times the associated memory
+// function is called.  After each such call, call Verify* to verify
+// that we used the tcmalloc version of the call, and not the libc.
+// Note the ... in the hook signature: we don't care what arguments
+// the hook takes.
+#define MAKE_HOOK_CALLBACK(hook_type, ...)                              \
+  static volatile int g_##hook_type##_calls = 0;                                 \
+  static void IncrementCallsTo##hook_type(__VA_ARGS__) {                \
+    g_##hook_type##_calls++;                                            \
+  }                                                                     \
+  static void Verify##hook_type##WasCalled() {                          \
+    CHECK_GT(g_##hook_type##_calls, 0);                                 \
+    g_##hook_type##_calls = 0;  /* reset for next call */               \
+  }                                                                     \
+  static void Set##hook_type() {                                        \
+    CHECK(MallocHook::Add##hook_type(                                   \
+        (MallocHook::hook_type)&IncrementCallsTo##hook_type));          \
+  }                                                                     \
+  static void Reset##hook_type() {                                      \
+    CHECK(MallocHook::Remove##hook_type(                                \
+        (MallocHook::hook_type)&IncrementCallsTo##hook_type));          \
+  }
+
+// We do one for each hook typedef in malloc_hook.h
+MAKE_HOOK_CALLBACK(NewHook, const void*, size_t);
+MAKE_HOOK_CALLBACK(DeleteHook, const void*);
+MAKE_HOOK_CALLBACK(MmapHook, const void*, const void*, size_t, int, int, int,
+                   off_t);
+MAKE_HOOK_CALLBACK(MremapHook, const void*, const void*, size_t, size_t, int,
+                   const void*);
+MAKE_HOOK_CALLBACK(MunmapHook, const void *, size_t);
+MAKE_HOOK_CALLBACK(SbrkHook, const void *, ptrdiff_t);
+
+static void TestAlignmentForSize(int size) {
+  fprintf(LOGSTREAM, "Testing alignment of malloc(%d)\n", size);
+  static const int kNum = 100;
+  void* ptrs[kNum];
+  for (int i = 0; i < kNum; i++) {
+    ptrs[i] = malloc(size);
+    uintptr_t p = reinterpret_cast(ptrs[i]);
+    CHECK((p % sizeof(void*)) == 0);
+    CHECK((p % sizeof(double)) == 0);
+
+    // Must have 16-byte (or 8-byte in case of -DTCMALLOC_ALIGN_8BYTES)
+    // alignment for large enough objects
+    if (size >= kMinAlign) {
+      CHECK((p % kMinAlign) == 0);
+    }
+  }
+  for (int i = 0; i < kNum; i++) {
+    free(ptrs[i]);
+  }
+}
+
+static void TestMallocAlignment() {
+  for (int lg = 0; lg < 16; lg++) {
+    TestAlignmentForSize((1<(arg);
+  if (state->ptr >= r->address &&
+      state->ptr < r->address + r->length) {
+    if (state->expected_type == base::MallocRange::FREE) {
+      // We are expecting r->type == FREE, but ReleaseMemory
+      // may have already moved us to UNMAPPED state instead (this happens in
+      // approximately 0.1% of executions). Accept either state.
+      CHECK(r->type == base::MallocRange::FREE ||
+            r->type == base::MallocRange::UNMAPPED);
+    } else {
+      CHECK_EQ(r->type, state->expected_type);
+    }
+    CHECK_GE(r->length, state->min_size);
+    state->matched = true;
+  }
+}
+
+// Check that at least one of the callbacks from Ranges() contains
+// the specified address with the specified type, and has size
+// >= min_size.
+static void CheckRangeCallback(void* ptr, base::MallocRange::Type type,
+                               size_t min_size) {
+  RangeCallbackState state;
+  state.ptr = reinterpret_cast(ptr);
+  state.expected_type = type;
+  state.min_size = min_size;
+  state.matched = false;
+  MallocExtension::instance()->Ranges(&state, RangeCallback);
+  CHECK(state.matched);
+}
+
+}
+
+static bool HaveSystemRelease =
+    TCMalloc_SystemRelease(TCMalloc_SystemAlloc(kPageSize, NULL, 0), kPageSize);
+
+static void TestRanges() {
+  static const int MB = 1048576;
+  void* a = malloc(MB);
+  void* b = malloc(MB);
+  base::MallocRange::Type releasedType =
+      HaveSystemRelease ? base::MallocRange::UNMAPPED : base::MallocRange::FREE;
+
+  CheckRangeCallback(a, base::MallocRange::INUSE, MB);
+  CheckRangeCallback(b, base::MallocRange::INUSE, MB);
+  free(a);
+  CheckRangeCallback(a, base::MallocRange::FREE, MB);
+  CheckRangeCallback(b, base::MallocRange::INUSE, MB);
+  MallocExtension::instance()->ReleaseFreeMemory();
+  CheckRangeCallback(a, releasedType, MB);
+  CheckRangeCallback(b, base::MallocRange::INUSE, MB);
+  free(b);
+  CheckRangeCallback(a, releasedType, MB);
+  CheckRangeCallback(b, base::MallocRange::FREE, MB);
+}
+
+#ifndef DEBUGALLOCATION
+static size_t GetUnmappedBytes() {
+  size_t bytes;
+  CHECK(MallocExtension::instance()->GetNumericProperty(
+      "tcmalloc.pageheap_unmapped_bytes", &bytes));
+  return bytes;
+}
+#endif
+
+class AggressiveDecommitChanger {
+  size_t old_value_;
+public:
+  AggressiveDecommitChanger(size_t new_value) {
+    MallocExtension *inst = MallocExtension::instance();
+    bool rv = inst->GetNumericProperty("tcmalloc.aggressive_memory_decommit", &old_value_);
+    CHECK_CONDITION(rv);
+    rv = inst->SetNumericProperty("tcmalloc.aggressive_memory_decommit", new_value);
+    CHECK_CONDITION(rv);
+  }
+  ~AggressiveDecommitChanger() {
+    MallocExtension *inst = MallocExtension::instance();
+    bool rv = inst->SetNumericProperty("tcmalloc.aggressive_memory_decommit", old_value_);
+    CHECK_CONDITION(rv);
+  }
+};
+
+static void TestReleaseToSystem() {
+  // Debug allocation mode adds overhead to each allocation which
+  // messes up all the equality tests here.  I just disable the
+  // teset in this mode.  TODO(csilvers): get it to work for debugalloc?
+#ifndef DEBUGALLOCATION
+
+  if(!HaveSystemRelease) return;
+
+  const double old_tcmalloc_release_rate = FLAGS_tcmalloc_release_rate;
+  FLAGS_tcmalloc_release_rate = 0;
+
+  AggressiveDecommitChanger disabler(0);
+
+  static const int MB = 1048576;
+  void* a = noopt(malloc(MB));
+  void* b = noopt(malloc(MB));
+  MallocExtension::instance()->ReleaseFreeMemory();
+  size_t starting_bytes = GetUnmappedBytes();
+
+  // Calling ReleaseFreeMemory() a second time shouldn't do anything.
+  MallocExtension::instance()->ReleaseFreeMemory();
+  EXPECT_EQ(starting_bytes, GetUnmappedBytes());
+
+  // ReleaseToSystem shouldn't do anything either.
+  MallocExtension::instance()->ReleaseToSystem(MB);
+  EXPECT_EQ(starting_bytes, GetUnmappedBytes());
+
+  free(a);
+
+  // The span to release should be 1MB.
+  MallocExtension::instance()->ReleaseToSystem(MB/2);
+  EXPECT_EQ(starting_bytes + MB, GetUnmappedBytes());
+
+  // Should do nothing since the previous call released too much.
+  MallocExtension::instance()->ReleaseToSystem(MB/4);
+  EXPECT_EQ(starting_bytes + MB, GetUnmappedBytes());
+
+  free(b);
+
+  // Use up the extra MB/4 bytes from 'a' and also release 'b'.
+  MallocExtension::instance()->ReleaseToSystem(MB/2);
+  EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes());
+
+  // Should do nothing since the previous call released too much.
+  MallocExtension::instance()->ReleaseToSystem(MB/2);
+  EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes());
+
+  // Nothing else to release.
+  MallocExtension::instance()->ReleaseFreeMemory();
+  EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes());
+
+  a = noopt(malloc(MB));
+  free(a);
+  EXPECT_EQ(starting_bytes + MB, GetUnmappedBytes());
+
+  // Releasing less than a page should still trigger a release.
+  MallocExtension::instance()->ReleaseToSystem(1);
+  EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes());
+
+  FLAGS_tcmalloc_release_rate = old_tcmalloc_release_rate;
+#endif   // #ifndef DEBUGALLOCATION
+}
+
+static void TestAggressiveDecommit() {
+  // Debug allocation mode adds overhead to each allocation which
+  // messes up all the equality tests here.  I just disable the
+  // teset in this mode.
+#ifndef DEBUGALLOCATION
+
+  if(!HaveSystemRelease) return;
+
+  fprintf(LOGSTREAM, "Testing aggressive de-commit\n");
+
+  AggressiveDecommitChanger enabler(1);
+
+  static const int MB = 1048576;
+  void* a = noopt(malloc(MB));
+  void* b = noopt(malloc(MB));
+
+  size_t starting_bytes = GetUnmappedBytes();
+
+  // ReleaseToSystem shouldn't do anything either.
+  MallocExtension::instance()->ReleaseToSystem(MB);
+  EXPECT_EQ(starting_bytes, GetUnmappedBytes());
+
+  free(a);
+
+  // The span to release should be 1MB.
+  EXPECT_EQ(starting_bytes + MB, GetUnmappedBytes());
+
+  free(b);
+
+  EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes());
+
+  // Nothing else to release.
+  MallocExtension::instance()->ReleaseFreeMemory();
+  EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes());
+
+  a = noopt(malloc(MB));
+  free(a);
+
+  EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes());
+
+  fprintf(LOGSTREAM, "Done testing aggressive de-commit\n");
+
+#endif   // #ifndef DEBUGALLOCATION
+}
+
+// On MSVC10, in release mode, the optimizer convinces itself
+// g_no_memory is never changed (I guess it doesn't realize OnNoMemory
+// might be called).  Work around this by setting the var volatile.
+volatile bool g_no_memory = false;
+std::new_handler g_old_handler = NULL;
+static void OnNoMemory() {
+  g_no_memory = true;
+  std::set_new_handler(g_old_handler);
+}
+
+static void TestSetNewMode() {
+  int old_mode = tc_set_new_mode(1);
+
+  g_old_handler = std::set_new_handler(&OnNoMemory);
+  g_no_memory = false;
+  void* ret = noopt(malloc(noopt(kTooBig)));
+  EXPECT_EQ(NULL, ret);
+  EXPECT_TRUE(g_no_memory);
+
+  g_old_handler = std::set_new_handler(&OnNoMemory);
+  g_no_memory = false;
+  ret = noopt(calloc(1, noopt(kTooBig)));
+  EXPECT_EQ(NULL, ret);
+  EXPECT_TRUE(g_no_memory);
+
+  g_old_handler = std::set_new_handler(&OnNoMemory);
+  g_no_memory = false;
+  ret = noopt(realloc(nullptr, noopt(kTooBig)));
+  EXPECT_EQ(NULL, ret);
+  EXPECT_TRUE(g_no_memory);
+
+  if (kOSSupportsMemalign) {
+    // Not really important, but must be small enough such that
+    // kAlignment + kTooBig does not overflow.
+    const int kAlignment = 1 << 5;
+
+    g_old_handler = std::set_new_handler(&OnNoMemory);
+    g_no_memory = false;
+    ret = Memalign(kAlignment, kTooBig);
+    EXPECT_EQ(NULL, ret);
+    EXPECT_TRUE(g_no_memory);
+
+    g_old_handler = std::set_new_handler(&OnNoMemory);
+    g_no_memory = false;
+    EXPECT_EQ(ENOMEM,
+              PosixMemalign(&ret, kAlignment, kTooBig));
+    EXPECT_EQ(NULL, ret);
+    EXPECT_TRUE(g_no_memory);
+  }
+
+  tc_set_new_mode(old_mode);
+}
+
+static void TestErrno(void) {
+  void* ret;
+  if (kOSSupportsMemalign) {
+    errno = 0;
+    ret = Memalign(128, kTooBig);
+    EXPECT_EQ(NULL, ret);
+    EXPECT_EQ(ENOMEM, errno);
+  }
+
+  errno = 0;
+  ret = noopt(malloc(noopt(kTooBig)));
+  EXPECT_EQ(NULL, ret);
+  EXPECT_EQ(ENOMEM, errno);
+
+  errno = 0;
+  ret = tc_malloc_skip_new_handler(kTooBig);
+  EXPECT_EQ(NULL, ret);
+  EXPECT_EQ(ENOMEM, errno);
+}
+
+
+#ifndef DEBUGALLOCATION
+// Ensure that nallocx works before main.
+struct GlobalNallocx {
+  GlobalNallocx() { CHECK_GT(nallocx(99, 0), 99); }
+} global_nallocx;
+
+#if defined(__GNUC__)
+
+static void check_global_nallocx() __attribute__((constructor));
+static void check_global_nallocx() { CHECK_GT(nallocx(99, 0), 99); }
+
+#endif // __GNUC__
+
+static void TestNAllocX() {
+  for (size_t size = 0; size <= (1 << 20); size += 7) {
+    size_t rounded = nallocx(size, 0);
+    ASSERT_GE(rounded, size);
+    void* ptr = malloc(size);
+    ASSERT_EQ(rounded, MallocExtension::instance()->GetAllocatedSize(ptr));
+    free(ptr);
+  }
+}
+
+static void TestNAllocXAlignment() {
+  for (size_t size = 0; size <= (1 << 20); size += 7) {
+    for (size_t align = 0; align < 10; align++) {
+      size_t rounded = nallocx(size, MALLOCX_LG_ALIGN(align));
+      ASSERT_GE(rounded, size);
+      ASSERT_EQ(rounded % (1 << align), 0);
+      void* ptr = tc_memalign(1 << align, size);
+      ASSERT_EQ(rounded, MallocExtension::instance()->GetAllocatedSize(ptr));
+      free(ptr);
+    }
+  }
+}
+
+static int saw_new_handler_runs;
+static void* volatile oom_test_last_ptr;
+
+static void test_new_handler() {
+  get_test_sys_alloc()->simulate_oom = false;
+  void *ptr = oom_test_last_ptr;
+  oom_test_last_ptr = NULL;
+  ::operator delete[](ptr);
+  saw_new_handler_runs++;
+}
+
+static ATTRIBUTE_NOINLINE void TestNewOOMHandling() {
+  // debug allocator does internal allocations and crashes when such
+  // internal allocation fails. So don't test it.
+  setup_oomable_sys_alloc();
+
+  std::new_handler old = std::set_new_handler(test_new_handler);
+  get_test_sys_alloc()->simulate_oom = true;
+
+  ASSERT_EQ(saw_new_handler_runs, 0);
+
+  for (int i = 0; i < 10240; i++) {
+    oom_test_last_ptr = noopt(new char [512]);
+    ASSERT_NE(oom_test_last_ptr, NULL);
+    if (saw_new_handler_runs) {
+      break;
+    }
+  }
+
+  ASSERT_GE(saw_new_handler_runs, 1);
+
+  get_test_sys_alloc()->simulate_oom = false;
+  std::set_new_handler(old);
+}
+#endif  // !DEBUGALLOCATION
+
+static int RunAllTests(int argc, char** argv) {
+  // Optional argv[1] is the seed
+  AllocatorState rnd(argc > 1 ? atoi(argv[1]) : 100);
+
+  SetTestResourceLimit();
+
+#ifndef DEBUGALLOCATION
+  TestNewOOMHandling();
+#endif
+
+  // TODO(odo):  This test has been disabled because it is only by luck that it
+  // does not result in fragmentation.  When tcmalloc makes an allocation which
+  // spans previously unused leaves of the pagemap it will allocate and fill in
+  // the leaves to cover the new allocation.  The leaves happen to be 256MiB in
+  // the 64-bit build, and with the sbrk allocator these allocations just
+  // happen to fit in one leaf by luck.  With other allocators (mmap,
+  // memfs_malloc when used with small pages) the allocations generally span
+  // two leaves and this results in a very bad fragmentation pattern with this
+  // code.  The same failure can be forced with the sbrk allocator just by
+  // allocating something on the order of 128MiB prior to starting this test so
+  // that the test allocations straddle a 256MiB boundary.
+
+  // TODO(csilvers): port MemoryUsage() over so the test can use that
+#if 0
+# include       // for getpid()
+  // Allocate and deallocate blocks of increasing sizes to check if the alloc
+  // metadata fragments the memory. (Do not put other allocations/deallocations
+  // before this test, it may break).
+  {
+    size_t memory_usage = MemoryUsage(getpid());
+    fprintf(LOGSTREAM, "Testing fragmentation\n");
+    for ( int i = 200; i < 240; ++i ) {
+      int size = i << 20;
+      void *test1 = rnd.alloc(size);
+      CHECK(test1);
+      for ( int j = 0; j < size; j += (1 << 12) ) {
+        static_cast(test1)[j] = 1;
+      }
+      free(test1);
+    }
+    // There may still be a bit of fragmentation at the beginning, until we
+    // reach kPageMapBigAllocationThreshold bytes so we check for
+    // 200 + 240 + margin.
+    CHECK_LT(MemoryUsage(getpid()), memory_usage + (450 << 20) );
+  }
+#endif
+
+  // Check that empty allocation works
+  fprintf(LOGSTREAM, "Testing empty allocation\n");
+  {
+    void* p1 = rnd.alloc(0);
+    CHECK(p1 != NULL);
+    void* p2 = rnd.alloc(0);
+    CHECK(p2 != NULL);
+    CHECK(p1 != p2);
+    free(p1);
+    free(p2);
+  }
+
+  // This code stresses some of the memory allocation via STL.
+  // It may call operator delete(void*, nothrow_t).
+  fprintf(LOGSTREAM, "Testing STL use\n");
+  {
+    std::vector v;
+    v.push_back(1);
+    v.push_back(2);
+    v.push_back(3);
+    v.push_back(0);
+    std::stable_sort(v.begin(), v.end());
+  }
+
+#ifdef ENABLE_SIZED_DELETE
+  {
+    fprintf(LOGSTREAM, "Testing large sized delete is not crashing\n");
+    // Large sized delete
+    // case. https://github.com/gperftools/gperftools/issues/1254
+    std::vector addresses;
+    constexpr int kSizedDepth = 1024;
+    addresses.reserve(kSizedDepth);
+    for (int i = 0; i < kSizedDepth; i++) {
+      addresses.push_back(noopt(new char[12686]));
+    }
+    for (int i = 0; i < kSizedDepth; i++) {
+      ::operator delete[](addresses[i], 12686);
+    }
+  }
+#endif
+
+  // Test each of the memory-allocation functions once, just as a sanity-check
+  fprintf(LOGSTREAM, "Sanity-testing all the memory allocation functions\n");
+  {
+    // We use new-hook and delete-hook to verify we actually called the
+    // tcmalloc version of these routines, and not the libc version.
+    SetNewHook();      // defined as part of MAKE_HOOK_CALLBACK, above
+    SetDeleteHook();   // ditto
+
+    void* p1 = malloc(10);
+    CHECK(p1 != NULL);    // force use of this variable
+    VerifyNewHookWasCalled();
+    // Also test the non-standard tc_malloc_size
+    size_t actual_p1_size = tc_malloc_size(p1);
+    CHECK_GE(actual_p1_size, 10);
+    CHECK_LT(actual_p1_size, 100000);   // a reasonable upper-bound, I think
+    free(p1);
+    VerifyDeleteHookWasCalled();
+
+    p1 = tc_malloc_skip_new_handler(10);
+    CHECK(p1 != NULL);
+    VerifyNewHookWasCalled();
+    free(p1);
+    VerifyDeleteHookWasCalled();
+
+    p1 = calloc(10, 2);
+    CHECK(p1 != NULL);
+    VerifyNewHookWasCalled();
+    // We make sure we realloc to a big size, since some systems (OS
+    // X) will notice if the realloced size continues to fit into the
+    // malloc-block and make this a noop if so.
+    p1 = realloc(p1, 30000);
+    CHECK(p1 != NULL);
+    VerifyNewHookWasCalled();
+    VerifyDeleteHookWasCalled();
+    cfree(p1);  // synonym for free
+    VerifyDeleteHookWasCalled();
+
+    if (kOSSupportsMemalign) {
+      CHECK_EQ(PosixMemalign(&p1, sizeof(p1), 40), 0);
+      CHECK(p1 != NULL);
+      VerifyNewHookWasCalled();
+      free(p1);
+      VerifyDeleteHookWasCalled();
+
+      p1 = Memalign(sizeof(p1) * 2, 50);
+      CHECK(p1 != NULL);
+      VerifyNewHookWasCalled();
+      free(p1);
+      VerifyDeleteHookWasCalled();
+    }
+
+    // Windows has _aligned_malloc.  Let's test that that's captured too.
+#if (defined(_MSC_VER) || defined(__MINGW32__)) && !defined(PERFTOOLS_NO_ALIGNED_MALLOC)
+    p1 = _aligned_malloc(sizeof(p1) * 2, 64);
+    CHECK(p1 != NULL);
+    VerifyNewHookWasCalled();
+    _aligned_free(p1);
+    VerifyDeleteHookWasCalled();
+#endif
+
+    p1 = noopt(valloc(60));
+    CHECK(p1 != NULL);
+    VerifyNewHookWasCalled();
+    free(p1);
+    VerifyDeleteHookWasCalled();
+
+    p1 = noopt(pvalloc(70));
+    CHECK(p1 != NULL);
+    VerifyNewHookWasCalled();
+    free(p1);
+    VerifyDeleteHookWasCalled();
+
+    char* p2 = noopt(new char);
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    delete p2;
+    VerifyDeleteHookWasCalled();
+
+    p2 = noopt(new char[100]);
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    delete[] p2;
+    VerifyDeleteHookWasCalled();
+
+    p2 = noopt(new (std::nothrow) char);
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    delete p2;
+    VerifyDeleteHookWasCalled();
+
+    p2 = noopt(new (std::nothrow) char[100]);
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    delete[] p2;
+    VerifyDeleteHookWasCalled();
+
+    // Another way of calling operator new
+    p2 = noopt(static_cast(::operator new(100)));
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    ::operator delete(p2);
+    VerifyDeleteHookWasCalled();
+
+    // Try to call nothrow's delete too.  Compilers use this.
+    p2 = noopt(static_cast(::operator new(100, std::nothrow)));
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    ::operator delete(p2, std::nothrow);
+    VerifyDeleteHookWasCalled();
+
+#ifdef ENABLE_SIZED_DELETE
+    p2 = noopt(new char);
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    ::operator delete(p2, sizeof(char));
+    VerifyDeleteHookWasCalled();
+
+    p2 = noopt(new char[100]);
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    ::operator delete[](p2, sizeof(char) * 100);
+    VerifyDeleteHookWasCalled();
+#endif
+
+#if defined(ENABLE_ALIGNED_NEW_DELETE)
+
+    overaligned_type* poveraligned = noopt(new overaligned_type);
+    CHECK(poveraligned != NULL);
+    CHECK((((size_t)poveraligned) % OVERALIGNMENT) == 0u);
+    VerifyNewHookWasCalled();
+    delete poveraligned;
+    VerifyDeleteHookWasCalled();
+
+    poveraligned = noopt(new overaligned_type[10]);
+    CHECK(poveraligned != NULL);
+    CHECK((((size_t)poveraligned) % OVERALIGNMENT) == 0u);
+    VerifyNewHookWasCalled();
+    delete[] poveraligned;
+    VerifyDeleteHookWasCalled();
+
+    poveraligned = noopt(new(std::nothrow) overaligned_type);
+    CHECK(poveraligned != NULL);
+    CHECK((((size_t)poveraligned) % OVERALIGNMENT) == 0u);
+    VerifyNewHookWasCalled();
+    delete poveraligned;
+    VerifyDeleteHookWasCalled();
+
+    poveraligned = noopt(new(std::nothrow) overaligned_type[10]);
+    CHECK(poveraligned != NULL);
+    CHECK((((size_t)poveraligned) % OVERALIGNMENT) == 0u);
+    VerifyNewHookWasCalled();
+    delete[] poveraligned;
+    VerifyDeleteHookWasCalled();
+
+    // Another way of calling operator new
+    p2 = noopt(static_cast(::operator new(100, std::align_val_t(OVERALIGNMENT))));
+    CHECK(p2 != NULL);
+    CHECK((((size_t)p2) % OVERALIGNMENT) == 0u);
+    VerifyNewHookWasCalled();
+    ::operator delete(p2, std::align_val_t(OVERALIGNMENT));
+    VerifyDeleteHookWasCalled();
+
+    p2 = noopt(static_cast(::operator new(100, std::align_val_t(OVERALIGNMENT), std::nothrow)));
+    CHECK(p2 != NULL);
+    CHECK((((size_t)p2) % OVERALIGNMENT) == 0u);
+    VerifyNewHookWasCalled();
+    ::operator delete(p2, std::align_val_t(OVERALIGNMENT), std::nothrow);
+    VerifyDeleteHookWasCalled();
+
+#ifdef ENABLE_SIZED_DELETE
+    poveraligned = noopt(new overaligned_type);
+    CHECK(poveraligned != NULL);
+    CHECK((((size_t)poveraligned) % OVERALIGNMENT) == 0u);
+    VerifyNewHookWasCalled();
+    ::operator delete(poveraligned, sizeof(overaligned_type), std::align_val_t(OVERALIGNMENT));
+    VerifyDeleteHookWasCalled();
+
+    poveraligned = noopt(new overaligned_type[10]);
+    CHECK(poveraligned != NULL);
+    CHECK((((size_t)poveraligned) % OVERALIGNMENT) == 0u);
+    VerifyNewHookWasCalled();
+    ::operator delete[](poveraligned, sizeof(overaligned_type) * 10, std::align_val_t(OVERALIGNMENT));
+    VerifyDeleteHookWasCalled();
+#endif
+
+#endif // defined(ENABLE_ALIGNED_NEW_DELETE)
+
+    // Try strdup(), which the system allocates but we must free.  If
+    // all goes well, libc will use our malloc!
+    p2 = noopt(strdup("in memory of James Golick"));
+    CHECK(p2 != NULL);
+    VerifyNewHookWasCalled();
+    free(p2);
+    VerifyDeleteHookWasCalled();
+
+
+    // Test mmap too: both anonymous mmap and mmap of a file
+    // Note that for right now we only override mmap on linux
+    // systems, so those are the only ones for which we check.
+    SetMmapHook();
+    SetMremapHook();
+    SetMunmapHook();
+#if defined(HAVE_MMAP) && defined(__linux) && \
+       (defined(__i386__) || defined(__x86_64__))
+    int size = 8192*2;
+    p1 = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_ANONYMOUS|MAP_PRIVATE,
+              -1, 0);
+    CHECK(p1 != NULL);
+    VerifyMmapHookWasCalled();
+    p1 = mremap(p1, size, size/2, 0);
+    CHECK(p1 != NULL);
+    VerifyMremapHookWasCalled();
+    size /= 2;
+    munmap(p1, size);
+    VerifyMunmapHookWasCalled();
+
+    int fd = open("/dev/zero", O_RDONLY);
+    CHECK_GE(fd, 0);   // make sure the open succeeded
+    p1 = mmap(NULL, 8192, PROT_READ, MAP_SHARED, fd, 0);
+    CHECK(p1 != NULL);
+    VerifyMmapHookWasCalled();
+    munmap(p1, 8192);
+    VerifyMunmapHookWasCalled();
+    close(fd);
+#else   // this is just to quiet the compiler: make sure all fns are called
+    IncrementCallsToMmapHook(NULL, NULL, 0, 0, 0, 0, 0);
+    IncrementCallsToMunmapHook(NULL, 0);
+    IncrementCallsToMremapHook(NULL, NULL, 0, 0, 0, NULL);
+    VerifyMmapHookWasCalled();
+    VerifyMremapHookWasCalled();
+    VerifyMunmapHookWasCalled();
+#endif
+
+    // Test sbrk
+    SetSbrkHook();
+#if defined(HAVE___SBRK) && defined(__linux) && \
+       (defined(__i386__) || defined(__x86_64__))
+    p1 = sbrk(8192);
+    CHECK(p1 != NULL);
+    VerifySbrkHookWasCalled();
+    p1 = sbrk(-8192);
+    CHECK(p1 != NULL);
+    VerifySbrkHookWasCalled();
+    // However, sbrk hook should *not* be called with sbrk(0)
+    p1 = sbrk(0);
+    CHECK(p1 != NULL);
+    CHECK_EQ(g_SbrkHook_calls, 0);
+#else   // this is just to quiet the compiler: make sure all fns are called
+    IncrementCallsToSbrkHook(NULL, 0);
+    VerifySbrkHookWasCalled();
+#endif
+
+    // Reset the hooks to what they used to be.  These are all
+    // defined as part of MAKE_HOOK_CALLBACK, above.
+    ResetNewHook();
+    ResetDeleteHook();
+    ResetMmapHook();
+    ResetMremapHook();
+    ResetMunmapHook();
+    ResetSbrkHook();
+  }
+
+  // Check that "lots" of memory can be allocated
+  fprintf(LOGSTREAM, "Testing large allocation\n");
+  {
+    const int mb_to_allocate = 100;
+    void* p = rnd.alloc(mb_to_allocate << 20);
+    CHECK(p != NULL);  // could not allocate
+    free(p);
+  }
+
+  TestMallocAlignment();
+
+  // Check calloc() with various arguments
+  fprintf(LOGSTREAM, "Testing calloc\n");
+  TestCalloc(0, 0, true);
+  TestCalloc(0, 1, true);
+  TestCalloc(1, 1, true);
+  TestCalloc(1<<10, 0, true);
+  TestCalloc(1<<20, 0, true);
+  TestCalloc(0, 1<<10, true);
+  TestCalloc(0, 1<<20, true);
+  TestCalloc(1<<20, 2, true);
+  TestCalloc(2, 1<<20, true);
+  TestCalloc(1000, 1000, true);
+
+  TestCalloc(kMaxSize, 2, false);
+  TestCalloc(2, kMaxSize, false);
+  TestCalloc(kMaxSize, kMaxSize, false);
+
+  TestCalloc(kMaxSignedSize, 3, false);
+  TestCalloc(3, kMaxSignedSize, false);
+  TestCalloc(kMaxSignedSize, kMaxSignedSize, false);
+
+  // Test that realloc doesn't always reallocate and copy memory.
+  fprintf(LOGSTREAM, "Testing realloc\n");
+  TestRealloc();
+
+  fprintf(LOGSTREAM, "Testing operator new(nothrow).\n");
+  TestNothrowNew(&::operator new);
+  fprintf(LOGSTREAM, "Testing operator new[](nothrow).\n");
+  TestNothrowNew(&::operator new[]);
+  fprintf(LOGSTREAM, "Testing operator new.\n");
+  TestNew(&::operator new);
+  fprintf(LOGSTREAM, "Testing operator new[].\n");
+  TestNew(&::operator new[]);
+
+  // Create threads
+  fprintf(LOGSTREAM, "Testing threaded allocation/deallocation (%d threads)\n",
+          FLAGS_numthreads);
+  threads = new TesterThread*[FLAGS_numthreads];
+  for (int i = 0; i < FLAGS_numthreads; ++i) {
+    threads[i] = new TesterThread(i);
+  }
+
+  // This runs all the tests at the same time, with a 1M stack size each
+  RunManyThreadsWithId(RunThread, FLAGS_numthreads, 1<<20);
+
+  for (int i = 0; i < FLAGS_numthreads; ++i) delete threads[i];    // Cleanup
+
+  // Do the memory intensive tests after threads are done, since exhausting
+  // the available address space can make pthread_create to fail.
+
+  // Check that huge allocations fail with NULL instead of crashing
+  fprintf(LOGSTREAM, "Testing huge allocations\n");
+  TestHugeAllocations(&rnd);
+
+  // Check that large allocations fail with NULL instead of crashing
+#ifndef DEBUGALLOCATION    // debug allocation takes forever for huge allocs
+  fprintf(LOGSTREAM, "Testing out of memory\n");
+  size_t old_limit;
+  CHECK(MallocExtension::instance()->GetNumericProperty("tcmalloc.heap_limit_mb", &old_limit));
+  // Don't exercise more than 1 gig, no need to.
+  CHECK(MallocExtension::instance()->SetNumericProperty("tcmalloc.heap_limit_mb", 1 << 10));
+  for (int s = 0; ; s += (10<<20)) {
+    void* large_object = rnd.alloc(s);
+    if (large_object == NULL) break;
+    free(large_object);
+  }
+  CHECK(MallocExtension::instance()->SetNumericProperty("tcmalloc.heap_limit_mb", old_limit));
+#endif
+
+  TestHugeThreadCache();
+  TestRanges();
+  TestReleaseToSystem();
+  TestAggressiveDecommit();
+  TestSetNewMode();
+  TestErrno();
+
+// GetAllocatedSize under DEBUGALLOCATION returns the size that we asked for.
+#ifndef DEBUGALLOCATION
+  TestNAllocX();
+  TestNAllocXAlignment();
+#endif
+
+  return 0;
+}
+
+}
+
+using testing::RunAllTests;
+
+int main(int argc, char** argv) {
+#ifdef DEBUGALLOCATION    // debug allocation takes forever for huge allocs
+  FLAGS_max_free_queue_size = 0;  // return freed blocks to tcmalloc immediately
+#endif
+
+  RunAllTests(argc, argv);
+
+  // Test tc_version()
+  fprintf(LOGSTREAM, "Testing tc_version()\n");
+  int major;
+  int minor;
+  const char* patch;
+  char mmp[64];
+  const char* human_version = tc_version(&major, &minor, &patch);
+  snprintf(mmp, sizeof(mmp), "%d.%d%s", major, minor, patch);
+  CHECK(!strcmp(PACKAGE_STRING, human_version));
+  CHECK(!strcmp(PACKAGE_VERSION, mmp));
+
+  fprintf(LOGSTREAM, "PASS\n");
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_unittest.sh b/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_unittest.sh
new file mode 100755
index 000000000..0e7996a21
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/tcmalloc_unittest.sh
@@ -0,0 +1,84 @@
+#!/bin/sh
+
+# Copyright (c) 2013, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# ---
+# Author: Adhemerval Zanella
+#
+# Runs the tcmalloc_unittest with various environment variables.
+# This is necessary because tuning some environment variables
+# (TCMALLOC_TRANSFER_NUM_OBJ for instance) should not change program
+# behavior, just performance.
+
+BINDIR="${BINDIR:-.}"
+TCMALLOC_UNITTEST="${1:-$BINDIR/tcmalloc_unittest}"
+
+TMPDIR=/tmp/tcmalloc_unittest
+rm -rf $TMPDIR || exit 2
+mkdir $TMPDIR || exit 3
+
+run_unittest() {
+    if $TCMALLOC_UNITTEST > $TMPDIR/output 2>&1; then
+      echo "OK"
+    else
+      echo "FAILED"
+      echo "Output from the failed run:"
+      echo "----"
+      cat $TMPDIR/output
+      echo "----"
+      exit 4
+    fi
+}
+
+# $1: value of tcmalloc_unittest env. var.
+run_check_transfer_num_obj() {
+    [ -n "$1" ] && export TCMALLOC_TRANSFER_NUM_OBJ="$1"
+
+    echo -n "Testing $TCMALLOC_UNITTEST with TCMALLOC_TRANSFER_NUM_OBJ=$1 ... "
+    run_unittest
+}
+
+run_check_transfer_num_obj ""
+run_check_transfer_num_obj "40"
+run_check_transfer_num_obj "4096"
+
+echo -n "Testing $TCMALLOC_UNITTEST with TCMALLOC_AGGRESSIVE_DECOMMIT=t ... "
+
+TCMALLOC_AGGRESSIVE_DECOMMIT=t run_unittest
+
+echo -n "Testing $TCMALLOC_UNITTEST with TCMALLOC_HEAP_LIMIT_MB=512 ... "
+
+TCMALLOC_HEAP_LIMIT_MB=512 run_unittest
+
+echo -n "Testing $TCMALLOC_UNITTEST with TCMALLOC_ENABLE_SIZED_DELETE=t ..."
+
+TCMALLOC_ENABLE_SIZED_DELETE=t run_unittest
+
+echo "PASS"
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/testutil.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/testutil.cc
new file mode 100644
index 000000000..e5faa65f7
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/testutil.cc
@@ -0,0 +1,224 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+//
+// A few routines that are useful for multiple tests in this directory.
+
+#include "config_for_unittests.h"
+#include            // for NULL, abort()
+// On FreeBSD, if you #include , you have to get stdint first.
+#ifdef HAVE_STDINT_H
+#include 
+#endif
+#ifdef HAVE_SYS_RESOURCE_H
+#include 
+#endif
+#include "tests/testutil.h"
+
+
+// When compiled 64-bit and run on systems with swap several unittests will end
+// up trying to consume all of RAM+swap, and that can take quite some time.  By
+// limiting the address-space size we get sufficient coverage without blowing
+// out job limits.
+void SetTestResourceLimit() {
+#ifdef HAVE_SYS_RESOURCE_H
+  // The actual resource we need to set varies depending on which flavour of
+  // unix.  On Linux we need RLIMIT_AS because that covers the use of mmap.
+  // Otherwise hopefully RLIMIT_RSS is good enough.  (Unfortunately 64-bit
+  // and 32-bit headers disagree on the type of these constants!)
+#ifdef RLIMIT_AS
+#define USE_RESOURCE RLIMIT_AS
+#else
+#define USE_RESOURCE RLIMIT_RSS
+#endif
+
+  // Restrict the test to 1GiB, which should fit comfortably well on both
+  // 32-bit and 64-bit hosts, and executes in ~1s.
+  const rlim_t kMaxMem = 1<<30;
+
+  struct rlimit rlim;
+  if (getrlimit(USE_RESOURCE, &rlim) == 0) {
+    if (rlim.rlim_cur == RLIM_INFINITY || rlim.rlim_cur > kMaxMem) {
+      rlim.rlim_cur = kMaxMem;
+      setrlimit(USE_RESOURCE, &rlim); // ignore result
+    }
+  }
+#endif  /* HAVE_SYS_RESOURCE_H */
+}
+
+
+struct FunctionAndId {
+  void (*ptr_to_function)(int);
+  int id;
+};
+
+#if defined(NO_THREADS) || !(defined(HAVE_PTHREAD) || defined(_WIN32))
+
+extern "C" void RunThread(void (*fn)()) {
+  (*fn)();
+}
+
+extern "C" void RunManyThreads(void (*fn)(), int count) {
+  // I guess the best we can do is run fn sequentially, 'count' times
+  for (int i = 0; i < count; i++)
+    (*fn)();
+}
+
+extern "C" void RunManyThreadsWithId(void (*fn)(int), int count, int) {
+  for (int i = 0; i < count; i++)
+    (*fn)(i);    // stacksize doesn't make sense in a non-threaded context
+}
+
+#elif defined(_WIN32)
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN  /* We always want minimal includes */
+#endif
+#include 
+
+extern "C" {
+  // This helper function has the signature that pthread_create wants.
+  DWORD WINAPI RunFunctionInThread(LPVOID ptr_to_ptr_to_fn) {
+    (**static_cast(ptr_to_ptr_to_fn))();    // runs fn
+    return 0;
+  }
+
+  DWORD WINAPI RunFunctionInThreadWithId(LPVOID ptr_to_fnid) {
+    FunctionAndId* fn_and_id = static_cast(ptr_to_fnid);
+    (*fn_and_id->ptr_to_function)(fn_and_id->id);   // runs fn
+    return 0;
+  }
+
+  void RunManyThreads(void (*fn)(), int count) {
+    DWORD dummy;
+    HANDLE* hThread = new HANDLE[count];
+    for (int i = 0; i < count; i++) {
+      hThread[i] = CreateThread(NULL, 0, RunFunctionInThread, &fn, 0, &dummy);
+      if (hThread[i] == NULL)  ExitProcess(i);
+    }
+    WaitForMultipleObjects(count, hThread, TRUE, INFINITE);
+    for (int i = 0; i < count; i++) {
+      CloseHandle(hThread[i]);
+    }
+    delete[] hThread;
+  }
+
+  void RunThread(void (*fn)()) {
+    RunManyThreads(fn, 1);
+  }
+
+  void RunManyThreadsWithId(void (*fn)(int), int count, int stacksize) {
+    DWORD dummy;
+    HANDLE* hThread = new HANDLE[count];
+    FunctionAndId* fn_and_ids = new FunctionAndId[count];
+    for (int i = 0; i < count; i++) {
+      fn_and_ids[i].ptr_to_function = fn;
+      fn_and_ids[i].id = i;
+      hThread[i] = CreateThread(NULL, stacksize, RunFunctionInThreadWithId,
+                                &fn_and_ids[i], 0, &dummy);
+      if (hThread[i] == NULL)  ExitProcess(i);
+    }
+    WaitForMultipleObjects(count, hThread, TRUE, INFINITE);
+    for (int i = 0; i < count; i++) {
+      CloseHandle(hThread[i]);
+    }
+    delete[] fn_and_ids;
+    delete[] hThread;
+  }
+}
+
+#else  // not NO_THREADS, not !HAVE_PTHREAD, not _WIN32
+
+#include 
+
+#define SAFE_PTHREAD(fncall)  do { if ((fncall) != 0) abort(); } while (0)
+
+extern "C" {
+  // This helper function has the signature that pthread_create wants.
+  static void* RunFunctionInThread(void *ptr_to_ptr_to_fn) {
+    (**static_cast(ptr_to_ptr_to_fn))();    // runs fn
+    return NULL;
+  }
+
+  static void* RunFunctionInThreadWithId(void *ptr_to_fnid) {
+    FunctionAndId* fn_and_id = static_cast(ptr_to_fnid);
+    (*fn_and_id->ptr_to_function)(fn_and_id->id);   // runs fn
+    return NULL;
+  }
+
+  // Run a function in a thread of its own and wait for it to finish.
+  // This is useful for tcmalloc testing, because each thread is
+  // handled separately in tcmalloc, so there's interesting stuff to
+  // test even if the threads are not running concurrently.
+  void RunThread(void (*fn)()) {
+    pthread_t thr;
+    // Even though fn is on the stack, it's safe to pass a pointer to it,
+    // because we pthread_join immediately (ie, before RunInThread exits).
+    SAFE_PTHREAD(pthread_create(&thr, NULL, RunFunctionInThread, &fn));
+    SAFE_PTHREAD(pthread_join(thr, NULL));
+  }
+
+  void RunManyThreads(void (*fn)(), int count) {
+    pthread_t* thr = new pthread_t[count];
+    for (int i = 0; i < count; i++) {
+      SAFE_PTHREAD(pthread_create(&thr[i], NULL, RunFunctionInThread, &fn));
+    }
+    for (int i = 0; i < count; i++) {
+      SAFE_PTHREAD(pthread_join(thr[i], NULL));
+    }
+    delete[] thr;
+  }
+
+  void RunManyThreadsWithId(void (*fn)(int), int count, int stacksize) {
+    pthread_attr_t attr;
+    pthread_attr_init(&attr);
+    pthread_attr_setstacksize(&attr, stacksize);
+
+    pthread_t* thr = new pthread_t[count];
+    FunctionAndId* fn_and_ids = new FunctionAndId[count];
+    for (int i = 0; i < count; i++) {
+      fn_and_ids[i].ptr_to_function = fn;
+      fn_and_ids[i].id = i;
+      SAFE_PTHREAD(pthread_create(&thr[i], &attr,
+                                  RunFunctionInThreadWithId, &fn_and_ids[i]));
+    }
+    for (int i = 0; i < count; i++) {
+      SAFE_PTHREAD(pthread_join(thr[i], NULL));
+    }
+    delete[] fn_and_ids;
+    delete[] thr;
+
+    pthread_attr_destroy(&attr);
+  }
+}
+
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/testutil.h b/trunk/3rdparty/gperftools-2-fit/src/tests/testutil.h
new file mode 100644
index 000000000..dc1db9b4a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/testutil.h
@@ -0,0 +1,73 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Craig Silverstein
+
+#ifndef TCMALLOC_TOOLS_TESTUTIL_H_
+#define TCMALLOC_TOOLS_TESTUTIL_H_
+
+// Run a function in a thread of its own and wait for it to finish.
+// The function you pass in must have the signature
+//    void MyFunction();
+extern "C" void RunThread(void (*fn)());
+
+// Run a function X times, in X threads, and wait for them all to finish.
+// The function you pass in must have the signature
+//    void MyFunction();
+extern "C" void RunManyThreads(void (*fn)(), int count);
+
+// The 'advanced' version: run a function X times, in X threads, and
+// wait for them all to finish.  Give them all the specified stack-size.
+// (If you're curious why this takes a stacksize and the others don't,
+// it's because the one client of this fn wanted to specify stacksize. :-) )
+// The function you pass in must have the signature
+//    void MyFunction(int idx);
+// where idx is the index of the thread (which of the X threads this is).
+extern "C" void RunManyThreadsWithId(void (*fn)(int), int count, int stacksize);
+
+// When compiled 64-bit and run on systems with swap several unittests will end
+// up trying to consume all of RAM+swap, and that can take quite some time.  By
+// limiting the address-space size we get sufficient coverage without blowing
+// out job limits.
+void SetTestResourceLimit();
+
+static void (* volatile noopt_helper)(void *) = +[] (void* dummy) {};
+
+// This function forces compiler to forget specific knowledge about
+// value of 'val'. This is useful to avoid compiler optimizing out
+// new/delete pairs for our unit tests.
+template 
+T noopt(T val) {
+  noopt_helper(&val);
+  return val;
+}
+
+#endif  // TCMALLOC_TOOLS_TESTUTIL_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/tests/thread_dealloc_unittest.cc b/trunk/3rdparty/gperftools-2-fit/src/tests/thread_dealloc_unittest.cc
new file mode 100644
index 000000000..770a76080
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/tests/thread_dealloc_unittest.cc
@@ -0,0 +1,84 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2004, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat
+//
+// Check that we do not leak memory when cycling through lots of threads.
+
+#include "config_for_unittests.h"
+#include 
+#ifdef HAVE_UNISTD_H
+#include     // for sleep()
+#endif
+#include "base/logging.h"
+#include 
+#include "tests/testutil.h"   // for RunThread()
+
+// Size/number of objects to allocate per thread (1 MB per thread)
+static const int kObjectSize = 1024;
+static const int kNumObjects = 1024;
+
+// Number of threads to create and destroy
+static const int kNumThreads = 1000;
+
+// Allocate lots of stuff
+static void AllocStuff() {
+  void** objects = new void*[kNumObjects];
+  for (int i = 0; i < kNumObjects; i++) {
+    objects[i] = malloc(kObjectSize);
+  }
+  for (int i = 0; i < kNumObjects; i++) {
+    free(objects[i]);
+  }
+  delete[] objects;
+}
+
+int main(int argc, char** argv) {
+  static const int kDisplaySize = 1048576;
+  char* display = new char[kDisplaySize];
+
+  for (int i = 0; i < kNumThreads; i++) {
+    RunThread(&AllocStuff);
+
+    if (((i+1) % 200) == 0) {
+      fprintf(stderr, "Iteration: %d of %d\n", (i+1), kNumThreads);
+      MallocExtension::instance()->GetStats(display, kDisplaySize);
+      fprintf(stderr, "%s\n", display);
+    }
+  }
+  delete[] display;
+
+  printf("PASS\n");
+#ifdef HAVE_UNISTD_H
+  sleep(1);     // Prevent exit race problem with glibc
+#endif
+  return 0;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/thread_cache.cc b/trunk/3rdparty/gperftools-2-fit/src/thread_cache.cc
new file mode 100644
index 000000000..21d0f8e70
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/thread_cache.cc
@@ -0,0 +1,529 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Ken Ashcraft 
+
+#include 
+#include "thread_cache.h"
+#include 
+#include                      // for memcpy
+#include                     // for max, min
+#include "base/commandlineflags.h"      // for SpinLockHolder
+#include "base/spinlock.h"              // for SpinLockHolder
+#include "getenv_safe.h"                // for TCMallocGetenvSafe
+#include "central_freelist.h"           // for CentralFreeListPadded
+#include "maybe_threads.h"
+
+using std::min;
+using std::max;
+
+// Note: this is initialized manually in InitModule to ensure that
+// it's configured at right time
+//
+// DEFINE_int64(tcmalloc_max_total_thread_cache_bytes,
+//              EnvToInt64("TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES",
+//                         kDefaultOverallThreadCacheSize),
+//              "Bound on the total amount of bytes allocated to "
+//              "thread caches. This bound is not strict, so it is possible "
+//              "for the cache to go over this bound in certain circumstances. "
+//              "Maximum value of this flag is capped to 1 GB.");
+
+
+namespace tcmalloc {
+
+static bool phinited = false;
+
+volatile size_t ThreadCache::per_thread_cache_size_ = kMaxThreadCacheSize;
+size_t ThreadCache::overall_thread_cache_size_ = kDefaultOverallThreadCacheSize;
+ssize_t ThreadCache::unclaimed_cache_space_ = kDefaultOverallThreadCacheSize;
+PageHeapAllocator threadcache_allocator;
+ThreadCache* ThreadCache::thread_heaps_ = NULL;
+int ThreadCache::thread_heap_count_ = 0;
+ThreadCache* ThreadCache::next_memory_steal_ = NULL;
+#ifdef HAVE_TLS
+__thread ThreadCache::ThreadLocalData ThreadCache::threadlocal_data_
+    ATTR_INITIAL_EXEC CACHELINE_ALIGNED;
+#endif
+bool ThreadCache::tsd_inited_ = false;
+pthread_key_t ThreadCache::heap_key_;
+
+void ThreadCache::Init(pthread_t tid) {
+  size_ = 0;
+
+  max_size_ = 0;
+  IncreaseCacheLimitLocked();
+  if (max_size_ == 0) {
+    // There isn't enough memory to go around.  Just give the minimum to
+    // this thread.
+    SetMaxSize(kMinThreadCacheSize);
+
+    // Take unclaimed_cache_space_ negative.
+    unclaimed_cache_space_ -= kMinThreadCacheSize;
+    ASSERT(unclaimed_cache_space_ < 0);
+  }
+
+  next_ = NULL;
+  prev_ = NULL;
+  tid_  = tid;
+  in_setspecific_ = false;
+  for (uint32 cl = 0; cl < Static::num_size_classes(); ++cl) {
+    list_[cl].Init(Static::sizemap()->class_to_size(cl));
+  }
+
+  uint32_t sampler_seed;
+  memcpy(&sampler_seed, &tid, sizeof(sampler_seed));
+  sampler_.Init(sampler_seed);
+}
+
+void ThreadCache::Cleanup() {
+  // Put unused memory back into central cache
+  for (uint32 cl = 0; cl < Static::num_size_classes(); ++cl) {
+    if (list_[cl].length() > 0) {
+      ReleaseToCentralCache(&list_[cl], cl, list_[cl].length());
+    }
+  }
+}
+
+// Remove some objects of class "cl" from central cache and add to thread heap.
+// On success, return the first object for immediate use; otherwise return NULL.
+void* ThreadCache::FetchFromCentralCache(uint32 cl, int32_t byte_size,
+                                         void *(*oom_handler)(size_t size)) {
+  FreeList* list = &list_[cl];
+  ASSERT(list->empty());
+  const int batch_size = Static::sizemap()->num_objects_to_move(cl);
+
+  const int num_to_move = min(list->max_length(), batch_size);
+  void *start, *end;
+  int fetch_count = Static::central_cache()[cl].RemoveRange(
+      &start, &end, num_to_move);
+
+  if (fetch_count == 0) {
+    ASSERT(start == NULL);
+    return oom_handler(byte_size);
+  }
+  ASSERT(start != NULL);
+
+  if (--fetch_count >= 0) {
+    size_ += byte_size * fetch_count;
+    list->PushRange(fetch_count, SLL_Next(start), end);
+  }
+
+  // Increase max length slowly up to batch_size.  After that,
+  // increase by batch_size in one shot so that the length is a
+  // multiple of batch_size.
+  if (list->max_length() < batch_size) {
+    list->set_max_length(list->max_length() + 1);
+  } else {
+    // Don't let the list get too long.  In 32 bit builds, the length
+    // is represented by a 16 bit int, so we need to watch out for
+    // integer overflow.
+    int new_length = min(list->max_length() + batch_size,
+                              kMaxDynamicFreeListLength);
+    // The list's max_length must always be a multiple of batch_size,
+    // and kMaxDynamicFreeListLength is not necessarily a multiple
+    // of batch_size.
+    new_length -= new_length % batch_size;
+    ASSERT(new_length % batch_size == 0);
+    list->set_max_length(new_length);
+  }
+  return start;
+}
+
+void ThreadCache::ListTooLong(FreeList* list, uint32 cl) {
+  size_ += list->object_size();
+
+  const int batch_size = Static::sizemap()->num_objects_to_move(cl);
+  ReleaseToCentralCache(list, cl, batch_size);
+
+  // If the list is too long, we need to transfer some number of
+  // objects to the central cache.  Ideally, we would transfer
+  // num_objects_to_move, so the code below tries to make max_length
+  // converge on num_objects_to_move.
+
+  if (list->max_length() < batch_size) {
+    // Slow start the max_length so we don't overreserve.
+    list->set_max_length(list->max_length() + 1);
+  } else if (list->max_length() > batch_size) {
+    // If we consistently go over max_length, shrink max_length.  If we don't
+    // shrink it, some amount of memory will always stay in this freelist.
+    list->set_length_overages(list->length_overages() + 1);
+    if (list->length_overages() > kMaxOverages) {
+      ASSERT(list->max_length() > batch_size);
+      list->set_max_length(list->max_length() - batch_size);
+      list->set_length_overages(0);
+    }
+  }
+
+  if (PREDICT_FALSE(size_ > max_size_)) {
+    Scavenge();
+  }
+}
+
+// Remove some objects of class "cl" from thread heap and add to central cache
+void ThreadCache::ReleaseToCentralCache(FreeList* src, uint32 cl, int N) {
+  ASSERT(src == &list_[cl]);
+  if (N > src->length()) N = src->length();
+  size_t delta_bytes = N * Static::sizemap()->ByteSizeForClass(cl);
+
+  // We return prepackaged chains of the correct size to the central cache.
+  // TODO: Use the same format internally in the thread caches?
+  int batch_size = Static::sizemap()->num_objects_to_move(cl);
+  while (N > batch_size) {
+    void *tail, *head;
+    src->PopRange(batch_size, &head, &tail);
+    Static::central_cache()[cl].InsertRange(head, tail, batch_size);
+    N -= batch_size;
+  }
+  void *tail, *head;
+  src->PopRange(N, &head, &tail);
+  Static::central_cache()[cl].InsertRange(head, tail, N);
+  size_ -= delta_bytes;
+}
+
+// Release idle memory to the central cache
+void ThreadCache::Scavenge() {
+  // If the low-water mark for the free list is L, it means we would
+  // not have had to allocate anything from the central cache even if
+  // we had reduced the free list size by L.  We aim to get closer to
+  // that situation by dropping L/2 nodes from the free list.  This
+  // may not release much memory, but if so we will call scavenge again
+  // pretty soon and the low-water marks will be high on that call.
+  for (int cl = 0; cl < Static::num_size_classes(); cl++) {
+    FreeList* list = &list_[cl];
+    const int lowmark = list->lowwatermark();
+    if (lowmark > 0) {
+      const int drop = (lowmark > 1) ? lowmark/2 : 1;
+      ReleaseToCentralCache(list, cl, drop);
+
+      // Shrink the max length if it isn't used.  Only shrink down to
+      // batch_size -- if the thread was active enough to get the max_length
+      // above batch_size, it will likely be that active again.  If
+      // max_length shinks below batch_size, the thread will have to
+      // go through the slow-start behavior again.  The slow-start is useful
+      // mainly for threads that stay relatively idle for their entire
+      // lifetime.
+      const int batch_size = Static::sizemap()->num_objects_to_move(cl);
+      if (list->max_length() > batch_size) {
+        list->set_max_length(
+            max(list->max_length() - batch_size, batch_size));
+      }
+    }
+    list->clear_lowwatermark();
+  }
+
+  IncreaseCacheLimit();
+}
+
+void ThreadCache::IncreaseCacheLimit() {
+  SpinLockHolder h(Static::pageheap_lock());
+  IncreaseCacheLimitLocked();
+}
+
+void ThreadCache::IncreaseCacheLimitLocked() {
+  if (unclaimed_cache_space_ > 0) {
+    // Possibly make unclaimed_cache_space_ negative.
+    unclaimed_cache_space_ -= kStealAmount;
+    SetMaxSize(max_size_ + kStealAmount);
+    return;
+  }
+  // Don't hold pageheap_lock too long.  Try to steal from 10 other
+  // threads before giving up.  The i < 10 condition also prevents an
+  // infinite loop in case none of the existing thread heaps are
+  // suitable places to steal from.
+  for (int i = 0; i < 10;
+       ++i, next_memory_steal_ = next_memory_steal_->next_) {
+    // Reached the end of the linked list.  Start at the beginning.
+    if (next_memory_steal_ == NULL) {
+      ASSERT(thread_heaps_ != NULL);
+      next_memory_steal_ = thread_heaps_;
+    }
+    if (next_memory_steal_ == this ||
+        next_memory_steal_->max_size_ <= kMinThreadCacheSize) {
+      continue;
+    }
+    next_memory_steal_->SetMaxSize(next_memory_steal_->max_size_ - kStealAmount);
+    SetMaxSize(max_size_ + kStealAmount);
+
+    next_memory_steal_ = next_memory_steal_->next_;
+    return;
+  }
+}
+
+int ThreadCache::GetSamplePeriod() {
+  return Sampler::GetSamplePeriod();
+}
+
+void ThreadCache::InitModule() {
+  {
+    SpinLockHolder h(Static::pageheap_lock());
+    if (phinited) {
+      return;
+    }
+    const char *tcb = TCMallocGetenvSafe("TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES");
+    if (tcb) {
+      set_overall_thread_cache_size(strtoll(tcb, NULL, 10));
+    }
+    Static::InitStaticVars();
+    threadcache_allocator.Init();
+    phinited = 1;
+  }
+
+  // We do "late" part of initialization without holding lock since
+  // there is chance it'll recurse into malloc
+  Static::InitLateMaybeRecursive();
+}
+
+void ThreadCache::InitTSD() {
+  ASSERT(!tsd_inited_);
+  perftools_pthread_key_create(&heap_key_, DestroyThreadCache);
+  tsd_inited_ = true;
+
+#ifdef PTHREADS_CRASHES_IF_RUN_TOO_EARLY
+  // We may have used a fake pthread_t for the main thread.  Fix it.
+  pthread_t zero;
+  memset(&zero, 0, sizeof(zero));
+  SpinLockHolder h(Static::pageheap_lock());
+  for (ThreadCache* h = thread_heaps_; h != NULL; h = h->next_) {
+    if (h->tid_ == zero) {
+      h->tid_ = pthread_self();
+    }
+  }
+#endif
+}
+
+ThreadCache* ThreadCache::CreateCacheIfNecessary() {
+  if (!tsd_inited_) {
+#ifndef NDEBUG
+    // tests that freeing nullptr very early is working
+    free(NULL);
+#endif
+
+    InitModule();
+  }
+
+  // Initialize per-thread data if necessary
+  ThreadCache* heap = NULL;
+
+  bool seach_condition = true;
+#ifdef HAVE_TLS
+  static __thread ThreadCache** current_heap_ptr ATTR_INITIAL_EXEC;
+  if (tsd_inited_) {
+    // In most common case we're avoiding expensive linear search
+    // through all heaps (see below). Working TLS enables faster
+    // protection from malloc recursion in pthread_setspecific
+    seach_condition = false;
+
+    if (current_heap_ptr != NULL) {
+      // we're being recursively called by pthread_setspecific below.
+      return *current_heap_ptr;
+    }
+    current_heap_ptr = &heap;
+  }
+#endif
+
+  {
+    SpinLockHolder h(Static::pageheap_lock());
+    // On some old glibc's, and on freebsd's libc (as of freebsd 8.1),
+    // calling pthread routines (even pthread_self) too early could
+    // cause a segfault.  Since we can call pthreads quite early, we
+    // have to protect against that in such situations by making a
+    // 'fake' pthread.  This is not ideal since it doesn't work well
+    // when linking tcmalloc statically with apps that create threads
+    // before main, so we only do it if we have to.
+#ifdef PTHREADS_CRASHES_IF_RUN_TOO_EARLY
+    pthread_t me;
+    if (!tsd_inited_) {
+      memset(&me, 0, sizeof(me));
+    } else {
+      me = pthread_self();
+    }
+#else
+    const pthread_t me = pthread_self();
+#endif
+
+    // This may be a recursive malloc call from pthread_setspecific()
+    // In that case, the heap for this thread has already been created
+    // and added to the linked list.  So we search for that first.
+    if (seach_condition) {
+      for (ThreadCache* h = thread_heaps_; h != NULL; h = h->next_) {
+        if (h->tid_ == me) {
+          heap = h;
+          break;
+        }
+      }
+    }
+
+    if (heap == NULL) heap = NewHeap(me);
+  }
+
+  // We call pthread_setspecific() outside the lock because it may
+  // call malloc() recursively.  We check for the recursive call using
+  // the "in_setspecific_" flag so that we can avoid calling
+  // pthread_setspecific() if we are already inside pthread_setspecific().
+  if (!heap->in_setspecific_ && tsd_inited_) {
+    heap->in_setspecific_ = true;
+    perftools_pthread_setspecific(heap_key_, heap);
+#ifdef HAVE_TLS
+    // Also keep a copy in __thread for faster retrieval
+    threadlocal_data_.heap = heap;
+    threadlocal_data_.fast_path_heap = heap;
+#endif
+    heap->in_setspecific_ = false;
+  }
+#ifdef HAVE_TLS
+  current_heap_ptr = NULL;
+#endif
+  return heap;
+}
+
+ThreadCache* ThreadCache::NewHeap(pthread_t tid) {
+  // Create the heap and add it to the linked list
+  ThreadCache *heap = threadcache_allocator.New();
+  heap->Init(tid);
+  heap->next_ = thread_heaps_;
+  heap->prev_ = NULL;
+  if (thread_heaps_ != NULL) {
+    thread_heaps_->prev_ = heap;
+  } else {
+    // This is the only thread heap at the momment.
+    ASSERT(next_memory_steal_ == NULL);
+    next_memory_steal_ = heap;
+  }
+  thread_heaps_ = heap;
+  thread_heap_count_++;
+  return heap;
+}
+
+void ThreadCache::BecomeIdle() {
+  if (!tsd_inited_) return;              // No caches yet
+  ThreadCache* heap = GetThreadHeap();
+  if (heap == NULL) return;             // No thread cache to remove
+  if (heap->in_setspecific_) return;    // Do not disturb the active caller
+
+  heap->in_setspecific_ = true;
+  perftools_pthread_setspecific(heap_key_, NULL);
+#ifdef HAVE_TLS
+  // Also update the copy in __thread
+  threadlocal_data_.heap = NULL;
+  threadlocal_data_.fast_path_heap = NULL;
+#endif
+  heap->in_setspecific_ = false;
+  if (GetThreadHeap() == heap) {
+    // Somehow heap got reinstated by a recursive call to malloc
+    // from pthread_setspecific.  We give up in this case.
+    return;
+  }
+
+  // We can now get rid of the heap
+  DeleteCache(heap);
+}
+
+void ThreadCache::BecomeTemporarilyIdle() {
+  ThreadCache* heap = GetCacheIfPresent();
+  if (heap)
+    heap->Cleanup();
+}
+
+void ThreadCache::DestroyThreadCache(void* ptr) {
+  // Note that "ptr" cannot be NULL since pthread promises not
+  // to invoke the destructor on NULL values, but for safety,
+  // we check anyway.
+  if (ptr == NULL) return;
+#ifdef HAVE_TLS
+  // Prevent fast path of GetThreadHeap() from returning heap.
+  threadlocal_data_.heap = NULL;
+  threadlocal_data_.fast_path_heap = NULL;
+#endif
+  DeleteCache(reinterpret_cast(ptr));
+}
+
+void ThreadCache::DeleteCache(ThreadCache* heap) {
+  // Remove all memory from heap
+  heap->Cleanup();
+
+  // Remove from linked list
+  SpinLockHolder h(Static::pageheap_lock());
+  if (heap->next_ != NULL) heap->next_->prev_ = heap->prev_;
+  if (heap->prev_ != NULL) heap->prev_->next_ = heap->next_;
+  if (thread_heaps_ == heap) thread_heaps_ = heap->next_;
+  thread_heap_count_--;
+
+  if (next_memory_steal_ == heap) next_memory_steal_ = heap->next_;
+  if (next_memory_steal_ == NULL) next_memory_steal_ = thread_heaps_;
+  unclaimed_cache_space_ += heap->max_size_;
+
+  threadcache_allocator.Delete(heap);
+}
+
+void ThreadCache::RecomputePerThreadCacheSize() {
+  // Divide available space across threads
+  int n = thread_heap_count_ > 0 ? thread_heap_count_ : 1;
+  size_t space = overall_thread_cache_size_ / n;
+
+  // Limit to allowed range
+  if (space < kMinThreadCacheSize) space = kMinThreadCacheSize;
+  if (space > kMaxThreadCacheSize) space = kMaxThreadCacheSize;
+
+  double ratio = space / max(1, per_thread_cache_size_);
+  size_t claimed = 0;
+  for (ThreadCache* h = thread_heaps_; h != NULL; h = h->next_) {
+    // Increasing the total cache size should not circumvent the
+    // slow-start growth of max_size_.
+    if (ratio < 1.0) {
+      h->SetMaxSize(h->max_size_ * ratio);
+    }
+    claimed += h->max_size_;
+  }
+  unclaimed_cache_space_ = overall_thread_cache_size_ - claimed;
+  per_thread_cache_size_ = space;
+}
+
+void ThreadCache::GetThreadStats(uint64_t* total_bytes, uint64_t* class_count) {
+  for (ThreadCache* h = thread_heaps_; h != NULL; h = h->next_) {
+    *total_bytes += h->Size();
+    if (class_count) {
+      for (int cl = 0; cl < Static::num_size_classes(); ++cl) {
+        class_count[cl] += h->freelist_length(cl);
+      }
+    }
+  }
+}
+
+void ThreadCache::set_overall_thread_cache_size(size_t new_size) {
+  // Clip the value to a reasonable range
+  if (new_size < kMinThreadCacheSize) new_size = kMinThreadCacheSize;
+  if (new_size > (1<<30)) new_size = (1<<30);     // Limit to 1GB
+  overall_thread_cache_size_ = new_size;
+
+  RecomputePerThreadCacheSize();
+}
+
+}  // namespace tcmalloc
diff --git a/trunk/3rdparty/gperftools-2-fit/src/thread_cache.h b/trunk/3rdparty/gperftools-2-fit/src/thread_cache.h
new file mode 100644
index 000000000..f8be15267
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/thread_cache.h
@@ -0,0 +1,510 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Sanjay Ghemawat 
+
+#ifndef TCMALLOC_THREAD_CACHE_H_
+#define TCMALLOC_THREAD_CACHE_H_
+
+#include 
+#ifdef HAVE_PTHREAD
+#include                     // for pthread_t, pthread_key_t
+#endif
+#include                      // for size_t, NULL
+#ifdef HAVE_STDINT_H
+#include                      // for uint32_t, uint64_t
+#endif
+#include                   // for ssize_t
+#include "base/commandlineflags.h"
+#include "common.h"
+#include "linked_list.h"
+#include "maybe_threads.h"
+#include "page_heap_allocator.h"
+#include "sampler.h"
+#include "static_vars.h"
+
+#include "common.h"            // for SizeMap, kMaxSize, etc
+#include "internal_logging.h"  // for ASSERT, etc
+#include "linked_list.h"       // for SLL_Pop, SLL_PopRange, etc
+#include "page_heap_allocator.h"  // for PageHeapAllocator
+#include "sampler.h"           // for Sampler
+#include "static_vars.h"       // for Static
+
+DECLARE_int64(tcmalloc_sample_parameter);
+
+namespace tcmalloc {
+
+//-------------------------------------------------------------------
+// Data kept per thread
+//-------------------------------------------------------------------
+
+class ThreadCache {
+ public:
+#ifdef HAVE_TLS
+  enum { have_tls = true };
+#else
+  enum { have_tls = false };
+#endif
+
+  void Init(pthread_t tid);
+  void Cleanup();
+
+  // Accessors (mostly just for printing stats)
+  int freelist_length(uint32 cl) const { return list_[cl].length(); }
+
+  // Total byte size in cache
+  size_t Size() const { return size_; }
+
+  // Allocate an object of the given size and class. The size given
+  // must be the same as the size of the class in the size map.
+  void* Allocate(size_t size, uint32 cl, void *(*oom_handler)(size_t size));
+  void Deallocate(void* ptr, uint32 size_class);
+
+  void Scavenge();
+
+  int GetSamplePeriod();
+
+  // Record allocation of "k" bytes.  Return true iff allocation
+  // should be sampled
+  bool SampleAllocation(size_t k);
+
+  bool TryRecordAllocationFast(size_t k);
+
+  static void         InitModule();
+  static void         InitTSD();
+  static ThreadCache* GetThreadHeap();
+  static ThreadCache* GetCache();
+  static ThreadCache* GetCacheIfPresent();
+  static ThreadCache* GetFastPathCache();
+  static ThreadCache* GetCacheWhichMustBePresent();
+  static ThreadCache* CreateCacheIfNecessary();
+  static void         BecomeIdle();
+  static void         BecomeTemporarilyIdle();
+  static void         SetUseEmergencyMalloc();
+  static void         ResetUseEmergencyMalloc();
+  static bool         IsUseEmergencyMalloc();
+
+  // Return the number of thread heaps in use.
+  static inline int HeapsInUse();
+
+  // Adds to *total_bytes the total number of bytes used by all thread heaps.
+  // Also, if class_count is not NULL, it must be an array of size kNumClasses,
+  // and this function will increment each element of class_count by the number
+  // of items in all thread-local freelists of the corresponding size class.
+  // REQUIRES: Static::pageheap_lock is held.
+  static void GetThreadStats(uint64_t* total_bytes, uint64_t* class_count);
+
+  // Sets the total thread cache size to new_size, recomputing the
+  // individual thread cache sizes as necessary.
+  // REQUIRES: Static::pageheap lock is held.
+  static void set_overall_thread_cache_size(size_t new_size);
+  static size_t overall_thread_cache_size() {
+    return overall_thread_cache_size_;
+  }
+
+ private:
+  class FreeList {
+   private:
+    void*    list_;       // Linked list of nodes
+
+#ifdef _LP64
+    // On 64-bit hardware, manipulating 16-bit values may be slightly slow.
+    uint32_t length_;      // Current length.
+    uint32_t lowater_;     // Low water mark for list length.
+    uint32_t max_length_;  // Dynamic max list length based on usage.
+    // Tracks the number of times a deallocation has caused
+    // length_ > max_length_.  After the kMaxOverages'th time, max_length_
+    // shrinks and length_overages_ is reset to zero.
+    uint32_t length_overages_;
+#else
+    // If we aren't using 64-bit pointers then pack these into less space.
+    uint16_t length_;
+    uint16_t lowater_;
+    uint16_t max_length_;
+    uint16_t length_overages_;
+#endif
+
+    int32_t size_;
+
+   public:
+    void Init(size_t size) {
+      list_ = NULL;
+      length_ = 0;
+      lowater_ = 0;
+      max_length_ = 1;
+      length_overages_ = 0;
+      size_ = size;
+    }
+
+    // Return current length of list
+    size_t length() const {
+      return length_;
+    }
+
+    int32_t object_size() const {
+      return size_;
+    }
+
+    // Return the maximum length of the list.
+    size_t max_length() const {
+      return max_length_;
+    }
+
+    // Set the maximum length of the list.  If 'new_max' > length(), the
+    // client is responsible for removing objects from the list.
+    void set_max_length(size_t new_max) {
+      max_length_ = new_max;
+    }
+
+    // Return the number of times that length() has gone over max_length().
+    size_t length_overages() const {
+      return length_overages_;
+    }
+
+    void set_length_overages(size_t new_count) {
+      length_overages_ = new_count;
+    }
+
+    // Is list empty?
+    bool empty() const {
+      return list_ == NULL;
+    }
+
+    // Low-water mark management
+    int lowwatermark() const { return lowater_; }
+    void clear_lowwatermark() { lowater_ = length_; }
+
+    uint32_t Push(void* ptr) {
+      uint32_t length = length_ + 1;
+      SLL_Push(&list_, ptr);
+      length_ = length;
+      return length;
+    }
+
+    void* Pop() {
+      ASSERT(list_ != NULL);
+      length_--;
+      if (length_ < lowater_) lowater_ = length_;
+      return SLL_Pop(&list_);
+    }
+
+    bool TryPop(void **rv) {
+      if (SLL_TryPop(&list_, rv)) {
+        length_--;
+        if (PREDICT_FALSE(length_ < lowater_)) lowater_ = length_;
+        return true;
+      }
+      return false;
+    }
+
+    void* Next() {
+      return SLL_Next(&list_);
+    }
+
+    void PushRange(int N, void *start, void *end) {
+      SLL_PushRange(&list_, start, end);
+      length_ += N;
+    }
+
+    void PopRange(int N, void **start, void **end) {
+      SLL_PopRange(&list_, N, start, end);
+      ASSERT(length_ >= N);
+      length_ -= N;
+      if (length_ < lowater_) lowater_ = length_;
+    }
+  };
+
+  // Gets and returns an object from the central cache, and, if possible,
+  // also adds some objects of that size class to this thread cache.
+  void* FetchFromCentralCache(uint32 cl, int32_t byte_size,
+                              void *(*oom_handler)(size_t size));
+
+  void ListTooLong(void* ptr, uint32 cl);
+
+  // Releases some number of items from src.  Adjusts the list's max_length
+  // to eventually converge on num_objects_to_move(cl).
+  void ListTooLong(FreeList* src, uint32 cl);
+
+  // Releases N items from this thread cache.
+  void ReleaseToCentralCache(FreeList* src, uint32 cl, int N);
+
+  void SetMaxSize(int32 new_max_size);
+
+  // Increase max_size_ by reducing unclaimed_cache_space_ or by
+  // reducing the max_size_ of some other thread.  In both cases,
+  // the delta is kStealAmount.
+  void IncreaseCacheLimit();
+  // Same as above but requires Static::pageheap_lock() is held.
+  void IncreaseCacheLimitLocked();
+
+  // If TLS is available, we also store a copy of the per-thread object
+  // in a __thread variable since __thread variables are faster to read
+  // than pthread_getspecific().  We still need pthread_setspecific()
+  // because __thread variables provide no way to run cleanup code when
+  // a thread is destroyed.
+  // We also give a hint to the compiler to use the "initial exec" TLS
+  // model.  This is faster than the default TLS model, at the cost that
+  // you cannot dlopen this library.  (To see the difference, look at
+  // the CPU use of __tls_get_addr with and without this attribute.)
+  // Since we don't really use dlopen in google code -- and using dlopen
+  // on a malloc replacement is asking for trouble in any case -- that's
+  // a good tradeoff for us.
+#ifdef HAVE_TLS
+  struct ThreadLocalData {
+    ThreadCache* fast_path_heap;
+    ThreadCache* heap;
+    bool use_emergency_malloc;
+  };
+  static __thread ThreadLocalData threadlocal_data_
+    CACHELINE_ALIGNED ATTR_INITIAL_EXEC;
+
+#endif
+
+  // Thread-specific key.  Initialization here is somewhat tricky
+  // because some Linux startup code invokes malloc() before it
+  // is in a good enough state to handle pthread_keycreate().
+  // Therefore, we use TSD keys only after tsd_inited is set to true.
+  // Until then, we use a slow path to get the heap object.
+  static ATTRIBUTE_HIDDEN bool tsd_inited_;
+  static pthread_key_t heap_key_;
+
+  // Linked list of heap objects.  Protected by Static::pageheap_lock.
+  static ThreadCache* thread_heaps_;
+  static int thread_heap_count_;
+
+  // A pointer to one of the objects in thread_heaps_.  Represents
+  // the next ThreadCache from which a thread over its max_size_ should
+  // steal memory limit.  Round-robin through all of the objects in
+  // thread_heaps_.  Protected by Static::pageheap_lock.
+  static ThreadCache* next_memory_steal_;
+
+  // Overall thread cache size.  Protected by Static::pageheap_lock.
+  static size_t overall_thread_cache_size_;
+
+  // Global per-thread cache size.  Writes are protected by
+  // Static::pageheap_lock.  Reads are done without any locking, which should be
+  // fine as long as size_t can be written atomically and we don't place
+  // invariants between this variable and other pieces of state.
+  static volatile size_t per_thread_cache_size_;
+
+  // Represents overall_thread_cache_size_ minus the sum of max_size_
+  // across all ThreadCaches.  Protected by Static::pageheap_lock.
+  static ssize_t unclaimed_cache_space_;
+
+  // This class is laid out with the most frequently used fields
+  // first so that hot elements are placed on the same cache line.
+
+  FreeList      list_[kClassSizesMax];     // Array indexed by size-class
+
+  int32         size_;                     // Combined size of data
+  int32         max_size_;                 // size_ > max_size_ --> Scavenge()
+
+  // We sample allocations, biased by the size of the allocation
+  Sampler       sampler_;               // A sampler
+
+  pthread_t     tid_;                   // Which thread owns it
+  bool          in_setspecific_;        // In call to pthread_setspecific?
+
+  // Allocate a new heap. REQUIRES: Static::pageheap_lock is held.
+  static ThreadCache* NewHeap(pthread_t tid);
+
+  // Use only as pthread thread-specific destructor function.
+  static void DestroyThreadCache(void* ptr);
+
+  static void DeleteCache(ThreadCache* heap);
+  static void RecomputePerThreadCacheSize();
+
+public:
+
+  // All ThreadCache objects are kept in a linked list (for stats collection)
+  ThreadCache* next_;
+  ThreadCache* prev_;
+
+  // Ensure that this class is cacheline-aligned. This is critical for
+  // performance, as false sharing would negate many of the benefits
+  // of a per-thread cache.
+} CACHELINE_ALIGNED;
+
+// Allocator for thread heaps
+// This is logically part of the ThreadCache class, but MSVC, at
+// least, does not like using ThreadCache as a template argument
+// before the class is fully defined.  So we put it outside the class.
+extern PageHeapAllocator threadcache_allocator;
+
+inline int ThreadCache::HeapsInUse() {
+  return threadcache_allocator.inuse();
+}
+
+inline ATTRIBUTE_ALWAYS_INLINE void* ThreadCache::Allocate(
+  size_t size, uint32 cl, void *(*oom_handler)(size_t size)) {
+  FreeList* list = &list_[cl];
+
+#ifdef NO_TCMALLOC_SAMPLES
+  size = list->object_size();
+#endif
+
+  ASSERT(size <= kMaxSize);
+  ASSERT(size != 0);
+  ASSERT(size == 0 || size == Static::sizemap()->ByteSizeForClass(cl));
+
+  void* rv;
+  if (!list->TryPop(&rv)) {
+    return FetchFromCentralCache(cl, size, oom_handler);
+  }
+  size_ -= size;
+  return rv;
+}
+
+inline ATTRIBUTE_ALWAYS_INLINE void ThreadCache::Deallocate(void* ptr, uint32 cl) {
+  ASSERT(list_[cl].max_length() > 0);
+  FreeList* list = &list_[cl];
+
+  // This catches back-to-back frees of allocs in the same size
+  // class. A more comprehensive (and expensive) test would be to walk
+  // the entire freelist. But this might be enough to find some bugs.
+  ASSERT(ptr != list->Next());
+
+  uint32_t length = list->Push(ptr);
+
+  if (PREDICT_FALSE(length > list->max_length())) {
+    ListTooLong(list, cl);
+    return;
+  }
+
+  size_ += list->object_size();
+  if (PREDICT_FALSE(size_ > max_size_)){
+    Scavenge();
+  }
+}
+
+inline ThreadCache* ThreadCache::GetThreadHeap() {
+#ifdef HAVE_TLS
+  return threadlocal_data_.heap;
+#else
+  return reinterpret_cast(
+      perftools_pthread_getspecific(heap_key_));
+#endif
+}
+
+inline ThreadCache* ThreadCache::GetCacheWhichMustBePresent() {
+#ifdef HAVE_TLS
+  ASSERT(threadlocal_data_.heap);
+  return threadlocal_data_.heap;
+#else
+  ASSERT(perftools_pthread_getspecific(heap_key_));
+  return reinterpret_cast(
+      perftools_pthread_getspecific(heap_key_));
+#endif
+}
+
+inline ThreadCache* ThreadCache::GetCache() {
+#ifdef HAVE_TLS
+  ThreadCache* ptr = GetThreadHeap();
+#else
+  ThreadCache* ptr = NULL;
+  if (PREDICT_TRUE(tsd_inited_)) {
+    ptr = GetThreadHeap();
+  }
+#endif
+  if (ptr == NULL) ptr = CreateCacheIfNecessary();
+  return ptr;
+}
+
+// In deletion paths, we do not try to create a thread-cache.  This is
+// because we may be in the thread destruction code and may have
+// already cleaned up the cache for this thread.
+inline ThreadCache* ThreadCache::GetCacheIfPresent() {
+#ifndef HAVE_TLS
+  if (PREDICT_FALSE(!tsd_inited_)) return NULL;
+#endif
+  return GetThreadHeap();
+}
+
+inline ThreadCache* ThreadCache::GetFastPathCache() {
+#ifndef HAVE_TLS
+  return GetCacheIfPresent();
+#else
+  return threadlocal_data_.fast_path_heap;
+#endif
+}
+
+inline void ThreadCache::SetUseEmergencyMalloc() {
+#ifdef HAVE_TLS
+  threadlocal_data_.fast_path_heap = NULL;
+  threadlocal_data_.use_emergency_malloc = true;
+#endif
+}
+
+inline void ThreadCache::ResetUseEmergencyMalloc() {
+#ifdef HAVE_TLS
+  ThreadCache *heap = threadlocal_data_.heap;
+  threadlocal_data_.fast_path_heap = heap;
+  threadlocal_data_.use_emergency_malloc = false;
+#endif
+}
+
+inline bool ThreadCache::IsUseEmergencyMalloc() {
+#if defined(HAVE_TLS) && defined(ENABLE_EMERGENCY_MALLOC)
+  return PREDICT_FALSE(threadlocal_data_.use_emergency_malloc);
+#else
+  return false;
+#endif
+}
+
+inline void ThreadCache::SetMaxSize(int32 new_max_size) {
+  max_size_ = new_max_size;
+}
+
+#ifndef NO_TCMALLOC_SAMPLES
+
+inline bool ThreadCache::SampleAllocation(size_t k) {
+  return !sampler_.RecordAllocation(k);
+}
+
+inline bool ThreadCache::TryRecordAllocationFast(size_t k) {
+  return sampler_.TryRecordAllocationFast(k);
+}
+
+#else
+
+inline bool ThreadCache::SampleAllocation(size_t k) {
+  return false;
+}
+
+inline bool ThreadCache::TryRecordAllocationFast(size_t k) {
+  return true;
+}
+
+#endif
+
+}  // namespace tcmalloc
+
+#endif  // TCMALLOC_THREAD_CACHE_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/TODO b/trunk/3rdparty/gperftools-2-fit/src/windows/TODO
new file mode 100644
index 000000000..708ec237a
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/TODO
@@ -0,0 +1,86 @@
+* Get heap-profile-table.cc using DeleteMatchingFiles
+* Get heap-profile-table.cc using FillProcSelfMaps, DumpProcSelfMaps
+* Play around with ExperimentalGetStackTrace
+* Support the windows-level memory-allocation functions?  See
+    /home/build/googleclient/earth/client/tools/memorytracking/client/memorytrace/src/memorytrace.cpp
+    /home/build/googleclient/total_recall/common/sitestep/*
+    http://www.internals.com/articles/apispy/apispy.htm
+    http://www.wheaty.net/APISPY32.zip
+* Verify /proc/xxx/maps:
+    http://www.geocities.com/wah_java_dotnet/procmap/index.html
+* Figure out how to edit the executable IAT so tcmalloc.dll is loaded first
+* Use QueryPerformanceCounter instead of GetTickCount() (also for sparsehash)
+
+----
+More info on windows-level memory-allocation functions:
+   C runtime malloc
+   LocalAlloc
+   GlobalAlloc
+   HeapAlloc
+   VirtualAlloc
+   mmap stuff
+
+malloc, LocalAlloc and GlobalAlloc call HeapAlloc, which calls
+VirtualAlloc when needed, which calls VirtualAllocEx (the __sbrk equiv?)
+
+siggi sez: If you want to do a generic job, you probably need to
+preserve the semantics of all of these Win32 calls:
+   Heap32First
+   Heap32ListFirst
+   Heap32ListNext
+   Heap32Next
+   HeapAlloc
+   HeapCompact
+   HeapCreate
+   HeapCreateTagsW
+   HeapDestroy
+   HeapExtend
+   HeapFree
+   HeapLock
+   HeapQueryInformation
+   HeapQueryTagW
+   HeapReAlloc
+   HeapSetInformation
+   HeapSize
+   HeapSummary
+   HeapUnlock
+   HeapUsage
+   HeapValidate
+   HeapWalk
+
+kernel32.dll export functions and nt.dll export functions:
+   http://www.shorthike.com/svn/trunk/tools_win32/dm/lib/kernel32.def
+   http://undocumented.ntinternals.net/
+
+You can edit the executable IAT to have the patching DLL be the
+first one loaded.
+
+Most complete way to intercept system calls is patch the functions
+(not the IAT).
+
+Microsoft has somee built-in routines for heap-checking:
+   http://support.microsoft.com/kb/268343
+
+----
+Itimer replacement:
+   http://msdn2.microsoft.com/en-us/library/ms712713.aspx
+
+----
+Changes I've had to make to the project file:
+
+0) When creating the project file, click on "no autogenerated files"
+
+--- For each project:
+1) Alt-F7 -> General -> [pulldown "all configurations" ] -> Output Directory -> $(SolutionDir)$(ConfigurationName)
+2) Alt-F7 -> General -> [pulldown "all configurations" ] -> Intermediate Directory -> $(ConfigurationName)
+
+--- For each .cc file:
+1) Alt-F7 -> C/C++ -> General -> [pulldown "all configurations"] -> Additional Include Directives --> src/windows + src/
+2) Alt-F7 -> C/C++ -> Code Generation -> Runtime Library -> Multi-threaded, debug/release, DLL or not
+
+--- For DLL:
+3) Alt-F7 -> Linker -> Input -> [pulldown "all configurations" ] -> Module Definition File -> src\windows\vc7and8.def
+--- For binaries depending on a DLL:
+3) Right-click on project -> Project Dependencies -> [add dll]
+--- For static binaries (not depending on a DLL)
+3) Alt-F7 -> C/C++ -> Command Line -> [pulldown "all configurations"] -> /D PERFTOOLS_DLL_DECL=
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/addr2line-pdb.c b/trunk/3rdparty/gperftools-2-fit/src/windows/addr2line-pdb.c
new file mode 100644
index 000000000..88d207bbe
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/addr2line-pdb.c
@@ -0,0 +1,183 @@
+/* -*- Mode: c; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: David Vitek
+ *
+ * Dump function addresses using Microsoft debug symbols.  This works
+ * on PDB files.  Note that this program will download symbols to
+ * c:\websymbols without asking.
+ */
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#ifndef _CRT_SECURE_NO_DEPRECATE
+#define _CRT_SECURE_NO_DEPRECATE
+#endif
+
+#include 
+#include 
+
+#include 
+#include 
+
+#define SEARCH_CAP (1024*1024)
+#define WEBSYM "SRV*c:\\websymbols*http://msdl.microsoft.com/download/symbols"
+
+void usage() {
+  fprintf(stderr, "usage: addr2line-pdb "
+          "[-f|--functions] [-C|--demangle] [-e|--exe filename]\n");
+  fprintf(stderr, "(Then list the hex addresses on stdin, one per line)\n");
+}
+
+int main(int argc, char *argv[]) {
+  DWORD  error;
+  HANDLE process;
+  ULONG64 module_base;
+  int i;
+  char* search;
+  char buf[256];   /* Enough to hold one hex address, I trust! */
+  int rv = 0;
+  /* We may add SYMOPT_UNDNAME if --demangle is specified: */
+  DWORD symopts = SYMOPT_DEFERRED_LOADS | SYMOPT_DEBUG | SYMOPT_LOAD_LINES;
+  char* filename = "a.out";         /* The default if -e isn't specified */
+  int print_function_name = 0;      /* Set to 1 if -f is specified */
+
+  for (i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "--functions") == 0 || strcmp(argv[i], "-f") == 0) {
+      print_function_name = 1;
+    } else if (strcmp(argv[i], "--demangle") == 0 ||
+               strcmp(argv[i], "-C") == 0) {
+      symopts |= SYMOPT_UNDNAME;
+    } else if (strcmp(argv[i], "--exe") == 0 ||
+               strcmp(argv[i], "-e") == 0) {
+      if (i + 1 >= argc) {
+        fprintf(stderr, "FATAL ERROR: -e must be followed by a filename\n");
+        return 1;
+      }
+      filename = argv[i+1];
+      i++;     /* to skip over filename too */
+    } else if (strcmp(argv[i], "--help") == 0) {
+      usage();
+      exit(0);
+    } else {
+      usage();
+      exit(1);
+    }
+  }
+
+  process = GetCurrentProcess();
+
+  if (!SymInitialize(process, NULL, FALSE)) {
+    error = GetLastError();
+    fprintf(stderr, "SymInitialize returned error : %lu\n", error);
+    return 1;
+  }
+
+  search = malloc(SEARCH_CAP);
+  if (SymGetSearchPath(process, search, SEARCH_CAP)) {
+    if (strlen(search) + sizeof(";" WEBSYM) > SEARCH_CAP) {
+      fprintf(stderr, "Search path too long\n");
+      SymCleanup(process);
+      return 1;
+    }
+    strcat(search, ";" WEBSYM);
+  } else {
+    error = GetLastError();
+    fprintf(stderr, "SymGetSearchPath returned error : %lu\n", error);
+    rv = 1;                   /* An error, but not a fatal one */
+    strcpy(search, WEBSYM);   /* Use a default value */
+  }
+  if (!SymSetSearchPath(process, search)) {
+    error = GetLastError();
+    fprintf(stderr, "SymSetSearchPath returned error : %lu\n", error);
+    rv = 1;                   /* An error, but not a fatal one */
+  }
+
+  SymSetOptions(symopts);
+  module_base = SymLoadModuleEx(process, NULL, filename, NULL, 0, 0, NULL, 0);
+  if (!module_base) {
+    /* SymLoadModuleEx failed */
+    error = GetLastError();
+    fprintf(stderr, "SymLoadModuleEx returned error : %lu for %s\n",
+            error, filename);
+    SymCleanup(process);
+    return 1;
+  }
+
+  buf[sizeof(buf)-1] = '\0';  /* Just to be safe */
+  while (fgets(buf, sizeof(buf)-1, stdin)) {
+    /* GNU addr2line seems to just do a strtol and ignore any
+     * weird characters it gets, so we will too.
+     */
+    unsigned __int64 reladdr = _strtoui64(buf, NULL, 16);
+    ULONG64 buffer[(sizeof(SYMBOL_INFO) +
+                    MAX_SYM_NAME*sizeof(TCHAR) +
+                    sizeof(ULONG64) - 1)
+                   / sizeof(ULONG64)];
+    memset(buffer, 0, sizeof(buffer));
+    PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;
+    IMAGEHLP_LINE64 line;
+    DWORD dummy;
+
+    // Just ignore overflow. In an overflow scenario, the resulting address
+    // will be lower than module_base which hasn't been mapped by any prior
+    // SymLoadModuleEx() command. This will cause SymFromAddr() and
+    // SymGetLineFromAddr64() both to return failures and print the correct
+    // ?? and ??:0 message variant.
+    ULONG64 absaddr = reladdr + module_base;
+
+    pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
+    // The length of the name is not including the null-terminating character.
+    pSymbol->MaxNameLen = MAX_SYM_NAME - 1;
+    if (print_function_name) {
+      if (SymFromAddr(process, (DWORD64)absaddr, NULL, pSymbol)) {
+        printf("%s\n", pSymbol->Name);
+      } else {
+        printf("??\n");
+      }
+    }
+    line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
+    if (SymGetLineFromAddr64(process, (DWORD64)absaddr, &dummy, &line)) {
+      printf("%s:%d\n", line.FileName, (int)line.LineNumber);
+    } else {
+      printf("??:0\n");
+    }
+  }
+  SymUnloadModule64(process, module_base);
+  SymCleanup(process);
+  return rv;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/auto_testing_hook.h b/trunk/3rdparty/gperftools-2-fit/src/windows/auto_testing_hook.h
new file mode 100644
index 000000000..fc2b71013
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/auto_testing_hook.h
@@ -0,0 +1,156 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Utility for using SideStep with unit tests.
+
+#ifndef CEEE_TESTING_SIDESTEP_AUTO_TESTING_HOOK_H_
+#define CEEE_TESTING_SIDESTEP_AUTO_TESTING_HOOK_H_
+
+#include "base/basictypes.h"
+#include "base/logging.h"
+#include "preamble_patcher.h"
+
+#define SIDESTEP_CHK(x)  CHECK(x)
+#define SIDESTEP_EXPECT_TRUE(x)  SIDESTEP_CHK(x)
+
+namespace sidestep {
+
+// Same trick as common/scope_cleanup.h ScopeGuardImplBase
+class AutoTestingHookBase {
+ public:
+  virtual ~AutoTestingHookBase() {}
+};
+
+// This is the typedef you normally use for the class, e.g.
+//
+// AutoTestingHook hook = MakeTestingHook(TargetFunc, HookTargetFunc);
+//
+// The 'hook' variable will then be destroyed when it goes out of scope.
+//
+// NOTE: You must not hold this type as a member of another class.  Its
+// destructor will not get called.
+typedef const AutoTestingHookBase& AutoTestingHook;
+
+// This is the class you must use when holding a hook as a member of another
+// class, e.g.
+//
+// public:
+//  AutoTestingHookHolder holder_;
+//  MyClass() : my_hook_holder(MakeTestingHookHolder(Target, Hook)) {}
+class AutoTestingHookHolder {
+ public:
+  explicit AutoTestingHookHolder(AutoTestingHookBase* hook) : hook_(hook) {}
+  ~AutoTestingHookHolder() { delete hook_; }
+ private:
+  AutoTestingHookHolder() {}  // disallow
+  AutoTestingHookBase* hook_;
+};
+
+// This class helps patch a function, then unpatch it when the object exits
+// scope, and also maintains the pointer to the original function stub.
+//
+// To enable use of the class without having to explicitly provide the
+// type of the function pointers (and instead only providing it
+// implicitly) we use the same trick as ScopeGuard (see
+// common/scope_cleanup.h) uses, so to create a hook you use the MakeHook
+// function rather than a constructor.
+//
+// NOTE:  This function is only safe for e.g. unit tests and _not_ for
+// production code.  See PreamblePatcher class for details.
+template 
+class AutoTestingHookImpl : public AutoTestingHookBase {
+ public:
+  static AutoTestingHookImpl MakeTestingHook(T target_function,
+                                                T replacement_function,
+                                                bool do_it) {
+    return AutoTestingHookImpl(target_function, replacement_function, do_it);
+  }
+
+  static AutoTestingHookImpl* MakeTestingHookHolder(T target_function,
+                                                       T replacement_function,
+                                                       bool do_it) {
+    return new AutoTestingHookImpl(target_function,
+                                      replacement_function, do_it);
+  }
+
+  ~AutoTestingHookImpl() {
+    if (did_it_) {
+      SIDESTEP_CHK(SIDESTEP_SUCCESS == PreamblePatcher::Unpatch(
+          (void*)target_function_, (void*)replacement_function_,
+          (void*)original_function_));
+    }
+  }
+
+  // Returns a pointer to the original function.  To use this method you will
+  // have to explicitly create an AutoTestingHookImpl of the specific
+  // function pointer type (i.e. not use the AutoTestingHook typedef).
+  T original_function() {
+    return original_function_;
+  }
+
+ private:
+  AutoTestingHookImpl(T target_function, T replacement_function, bool do_it)
+      : target_function_(target_function),
+        original_function_(NULL),
+        replacement_function_(replacement_function),
+        did_it_(do_it) {
+    if (do_it) {
+      SIDESTEP_CHK(SIDESTEP_SUCCESS == PreamblePatcher::Patch(target_function,
+                                                     replacement_function,
+                                                     &original_function_));
+    }
+  }
+
+  T target_function_;  // always valid
+  T original_function_;  // always valid
+  T replacement_function_;  // always valid
+  bool did_it_;  // Remember if we did it or not...
+};
+
+template 
+inline AutoTestingHookImpl MakeTestingHook(T target,
+                                              T replacement,
+                                              bool do_it) {
+  return AutoTestingHookImpl::MakeTestingHook(target, replacement, do_it);
+}
+
+template 
+inline AutoTestingHookImpl MakeTestingHook(T target, T replacement) {
+  return AutoTestingHookImpl::MakeTestingHook(target, replacement, true);
+}
+
+template 
+inline AutoTestingHookImpl* MakeTestingHookHolder(T target, T replacement) {
+  return AutoTestingHookImpl::MakeTestingHookHolder(target, replacement,
+                                                       true);
+}
+
+};  // namespace sidestep
+
+#endif  // CEEE_TESTING_SIDESTEP_AUTO_TESTING_HOOK_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/config.h b/trunk/3rdparty/gperftools-2-fit/src/windows/config.h
new file mode 100644
index 000000000..bd520e4c6
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/config.h
@@ -0,0 +1,306 @@
+/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* A manual version of config.h fit for windows machines.
+ *
+ * Use of this source code is governed by a BSD-style license that can
+ * be found in the LICENSE file.
+ */
+
+/* Sometimes we accidentally #include this config.h instead of the one
+   in .. -- this is particularly true for msys/mingw, which uses the
+   unix config.h but also runs code in the windows directory.
+   */
+#ifdef __MINGW32__
+#include "../config.h"
+#define GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_
+#endif
+
+#ifndef GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_
+#define GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_
+/* used by tcmalloc.h */
+#define GPERFTOOLS_CONFIG_H_
+
+/* Enable aggressive decommit by default */
+/* #undef ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT */
+
+/* Build new/delete operators for overaligned types */
+/* #undef ENABLE_ALIGNED_NEW_DELETE */
+
+/* Build runtime detection for sized delete */
+/* #undef ENABLE_DYNAMIC_SIZED_DELETE */
+
+/* Report large allocation */
+/* #undef ENABLE_LARGE_ALLOC_REPORT */
+
+/* Build sized deletion operators */
+/* #undef ENABLE_SIZED_DELETE */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_ASM_PTRACE_H */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_CYGWIN_SIGNAL_H */
+
+/* Define to 1 if you have the declaration of `backtrace', and to 0 if you
+   don't. */
+/* #undef HAVE_DECL_BACKTRACE */
+
+/* Define to 1 if you have the declaration of `cfree', and to 0 if you don't.
+   */
+#define HAVE_DECL_CFREE 0
+
+/* Define to 1 if you have the declaration of `memalign', and to 0 if you
+   don't. */
+#define HAVE_DECL_MEMALIGN 0
+
+/* Define to 1 if you have the declaration of `nanosleep', and to 0 if you
+   don't. */
+#define HAVE_DECL_NANOSLEEP 0
+
+/* Define to 1 if you have the declaration of `posix_memalign', and to 0 if
+   you don't. */
+#define HAVE_DECL_POSIX_MEMALIGN 0
+
+/* Define to 1 if you have the declaration of `pvalloc', and to 0 if you
+   don't. */
+#define HAVE_DECL_PVALLOC 0
+
+/* Define to 1 if you have the declaration of `sleep', and to 0 if you don't.
+   */
+#define HAVE_DECL_SLEEP 0
+
+/* Define to 1 if you have the declaration of `valloc', and to 0 if you don't.
+   */
+#define HAVE_DECL_VALLOC 0
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_DLFCN_H */
+
+/* Define to 1 if the system has the type `Elf32_Versym'. */
+/* #undef HAVE_ELF32_VERSYM */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_EXECINFO_H */
+
+/* Define to 1 if you have the  header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_FEATURES_H */
+
+/* Define to 1 if you have the `fork' function. */
+/* #undef HAVE_FORK */
+
+/* Define to 1 if you have the `geteuid' function. */
+/* #undef HAVE_GETEUID */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_GLOB_H */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_GRP_H */
+
+/* Define to 1 if you have the  header file. */
+#if defined(_MSC_VER) && _MSC_VER >= 1900
+#define HAVE_INTTYPES_H 1
+#endif
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_LIBUNWIND_H */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_LINUX_PTRACE_H */
+
+/* Define if this is Linux that has SIGEV_THREAD_ID */
+/* #undef HAVE_LINUX_SIGEV_THREAD_ID */
+
+/* Define to 1 if you have the  header file. */
+#define HAVE_MALLOC_H 1
+
+/* Define to 1 if you have the  header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have a working `mmap' system call. */
+/* #undef HAVE_MMAP */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_POLL_H */
+
+/* define if libc has program_invocation_name */
+/* #undef HAVE_PROGRAM_INVOCATION_NAME */
+
+/* Define if you have POSIX threads libraries and header files. */
+/* #undef HAVE_PTHREAD */
+
+/* defined to 1 if pthread symbols are exposed even without include pthread.h
+   */
+/* #undef HAVE_PTHREAD_DESPITE_ASKING_FOR */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_PWD_H */
+
+/* Define to 1 if you have the `sbrk' function. */
+/* #undef HAVE_SBRK */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_SCHED_H */
+
+/* Define to 1 if you have the  header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the  header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_STRINGS_H */
+
+/* Define to 1 if you have the  header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if the system has the type `struct mallinfo'. */
+/* #undef HAVE_STRUCT_MALLINFO */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_SYS_CDEFS_H */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_SYS_PRCTL_H */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_SYS_RESOURCE_H */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_SYS_SOCKET_H */
+
+/* Define to 1 if you have the  header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_SYS_SYSCALL_H */
+
+/* Define to 1 if you have the  header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_SYS_UCONTEXT_H */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_SYS_WAIT_H */
+
+/* Define to 1 if compiler supports __thread */
+#define HAVE_TLS 1
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_UCONTEXT_H */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_UNISTD_H */
+
+/* Whether  contains _Unwind_Backtrace */
+/* #undef HAVE_UNWIND_BACKTRACE */
+
+/* Define to 1 if you have the  header file. */
+/* #undef HAVE_UNWIND_H */
+
+/* define if your compiler has __attribute__ */
+/* #undef HAVE___ATTRIBUTE__ */
+
+/* define if your compiler supports alignment of functions */
+/* #undef HAVE___ATTRIBUTE__ALIGNED_FN */
+
+/* Define to 1 if compiler supports __environ */
+/* #undef HAVE___ENVIRON */
+
+/* Define to 1 if you have the `__sbrk' function. */
+/* #undef HAVE___SBRK */
+
+/* prefix where we look for installed files */
+/* #undef INSTALL_PREFIX */
+
+/* Define to 1 if int32_t is equivalent to intptr_t */
+#ifndef _WIN64
+#define INT32_EQUALS_INTPTR 1
+#endif
+
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
+/* #undef LT_OBJDIR */
+
+/* Name of package */
+#define PACKAGE "gperftools"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "gperftools@googlegroups.com"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "gperftools"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "gperftools 2.9.1"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "gperftools"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "2.9.1"
+
+/* How to access the PC from a struct ucontext */
+/* #undef PC_FROM_UCONTEXT */
+
+/* Always the empty-string on non-windows systems. On windows, should be
+   "__declspec(dllexport)". This way, when we compile the dll, we export our
+   functions/classes. It's safe to define this here because config.h is only
+   used internally, to compile the DLL, and every DLL source file #includes
+   "config.h" before anything else. */
+#ifndef PERFTOOLS_DLL_DECL
+# define PERFTOOLS_IS_A_DLL 1   /* not set if you're statically linking */
+# define PERFTOOLS_DLL_DECL __declspec(dllexport)
+# define PERFTOOLS_DLL_DECL_FOR_UNITTESTS __declspec(dllimport)
+#endif
+
+/* Mark the systems where we know it's bad if pthreads runs too
+   early before main (before threads are initialized, presumably).  */
+#ifdef __FreeBSD__
+#define PTHREADS_CRASHES_IF_RUN_TOO_EARLY 1
+#endif
+
+/* Define to necessary symbol if this constant uses a non-standard name on
+   your system. */
+/* #undef PTHREAD_CREATE_JOINABLE */
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define 8 bytes of allocation alignment for tcmalloc */
+/* #undef TCMALLOC_ALIGN_8BYTES */
+
+/* Define internal page size for tcmalloc as number of left bitshift */
+/* #undef TCMALLOC_PAGE_SIZE_SHIFT */
+
+/* Version number of package */
+#define VERSION "2.9.1"
+
+/* C99 says: define this to get the PRI... macros from stdint.h */
+#ifndef __STDC_FORMAT_MACROS
+# define __STDC_FORMAT_MACROS 1
+#endif
+
+// ---------------------------------------------------------------------
+// Extra stuff not found in config.h.in
+
+// This must be defined before the windows.h is included.  We need at
+// least 0x0400 for mutex.h to have access to TryLock, and at least
+// 0x0501 for patch_functions.cc to have access to GetModuleHandleEx.
+// (This latter is an optimization we could take out if need be.)
+#ifndef _WIN32_WINNT
+# define _WIN32_WINNT 0x0501
+#endif
+
+// We want to make sure not to ever try to #include heap-checker.h
+#define NO_HEAP_CHECK 1
+
+// TODO(csilvers): include windows/port.h in every relevant source file instead?
+#include "windows/port.h"
+
+#endif  /* GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/get_mangled_names.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/get_mangled_names.cc
new file mode 100644
index 000000000..fd6424be6
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/get_mangled_names.cc
@@ -0,0 +1,65 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---
+// Author: Craig Silverstein (opensource@google.com)
+
+// When you are porting perftools to a new compiler or architecture
+// (win64 vs win32) for instance, you'll need to change the mangled
+// symbol names for operator new and friends at the top of
+// patch_functions.cc.  This file helps you do that.
+//
+// It does this by defining these functions with the proper signature.
+// All you need to do is compile this file and the run dumpbin on it.
+// (See http://msdn.microsoft.com/en-us/library/5x49w699.aspx for more
+// on dumpbin).  To do this in MSVC, use the MSVC commandline shell:
+//    http://msdn.microsoft.com/en-us/library/ms235639(VS.80).aspx)
+//
+// The run:
+//    cl /c get_mangled_names.cc
+//    dumpbin /symbols get_mangled_names.obj
+//
+// It will print out the mangled (and associated unmangled) names of
+// the 8 symbols you need to put at the top of patch_functions.cc
+
+#include    // for size_t
+#include            // for nothrow_t
+
+static char m;   // some dummy memory so new doesn't return NULL.
+
+void* operator new(size_t size) { return &m; }
+void operator delete(void* p) throw() { }
+void* operator new[](size_t size) { return &m; }
+void operator delete[](void* p) throw() { }
+
+void* operator new(size_t size, const std::nothrow_t&) throw() { return &m; }
+void operator delete(void* p, const std::nothrow_t&) throw() { }
+void* operator new[](size_t size, const std::nothrow_t&) throw() { return &m; }
+void operator delete[](void* p, const std::nothrow_t&) throw() { }
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/gperftools/tcmalloc.h b/trunk/3rdparty/gperftools-2-fit/src/windows/gperftools/tcmalloc.h
new file mode 100644
index 000000000..5116b29f2
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/gperftools/tcmalloc.h
@@ -0,0 +1,155 @@
+// -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2003, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat 
+ *         .h file by Craig Silverstein 
+ */
+
+#ifndef TCMALLOC_TCMALLOC_H_
+#define TCMALLOC_TCMALLOC_H_
+
+#include                      /* for size_t */
+#ifdef __cplusplus
+#include                           /* for std::nothrow_t, std::align_val_t */
+#endif
+
+/* Define the version number so folks can check against it */
+#define TC_VERSION_MAJOR  2
+#define TC_VERSION_MINOR  9
+#define TC_VERSION_PATCH  ".1"
+#define TC_VERSION_STRING "gperftools 2.9.1"
+
+#ifndef PERFTOOLS_NOTHROW
+
+#if __cplusplus >= 201103L
+#define PERFTOOLS_NOTHROW noexcept
+#elif defined(__cplusplus)
+#define PERFTOOLS_NOTHROW throw()
+#else
+# ifdef __GNUC__
+#  define PERFTOOLS_NOTHROW __attribute__((__nothrow__))
+# else
+#  define PERFTOOLS_NOTHROW
+# endif
+#endif
+
+#endif
+
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  /*
+   * Returns a human-readable version string.  If major, minor,
+   * and/or patch are not NULL, they are set to the major version,
+   * minor version, and patch-code (a string, usually "").
+   */
+  PERFTOOLS_DLL_DECL const char* tc_version(int* major, int* minor,
+                                            const char** patch) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_free(void* ptr) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_free_sized(void *ptr, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_realloc(void* ptr, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_calloc(size_t nmemb, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void* tc_memalign(size_t __alignment,
+                                       size_t __size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL int tc_posix_memalign(void** ptr,
+                                           size_t align, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_valloc(size_t __size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t __size) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void tc_malloc_stats(void) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) PERFTOOLS_NOTHROW;
+
+  /*
+   * This is an alias for MallocExtension::instance()->GetAllocatedSize().
+   * It is equivalent to
+   *    OS X: malloc_size()
+   *    glibc: malloc_usable_size()
+   *    Windows: _msize()
+   */
+  PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) PERFTOOLS_NOTHROW;
+
+#ifdef __cplusplus
+  PERFTOOLS_DLL_DECL int tc_set_new_mode(int flag) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_new(size_t size);
+  PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size,
+                                          const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete(void* p) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_sized(void* p, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p,
+                                            const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_newarray(size_t size);
+  PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size,
+                                               const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray(void* p) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_sized(void* p, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p,
+                                                 const std::nothrow_t&) PERFTOOLS_NOTHROW;
+
+#if defined(__cpp_aligned_new) || (defined(_MSVC_LANG) && _MSVC_LANG > 201402L)
+  PERFTOOLS_DLL_DECL void* tc_new_aligned(size_t size, std::align_val_t al);
+  PERFTOOLS_DLL_DECL void* tc_new_aligned_nothrow(size_t size, std::align_val_t al,
+                                          const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_aligned(void* p, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_sized_aligned(void* p, size_t size, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_aligned_nothrow(void* p, std::align_val_t al,
+                                            const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_newarray_aligned(size_t size, std::align_val_t al);
+  PERFTOOLS_DLL_DECL void* tc_newarray_aligned_nothrow(size_t size, std::align_val_t al,
+                                               const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_aligned(void* p, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_sized_aligned(void* p, size_t size, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_aligned_nothrow(void* p, std::align_val_t al,
+                                                 const std::nothrow_t&) PERFTOOLS_NOTHROW;
+#endif
+}
+#endif
+
+/* We're only un-defining for public */
+#if !defined(GPERFTOOLS_CONFIG_H_)
+
+#undef PERFTOOLS_NOTHROW
+
+#endif /* GPERFTOOLS_CONFIG_H_ */
+
+#endif  /* #ifndef TCMALLOC_TCMALLOC_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/gperftools/tcmalloc.h.in b/trunk/3rdparty/gperftools-2-fit/src/windows/gperftools/tcmalloc.h.in
new file mode 100644
index 000000000..adb79629e
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/gperftools/tcmalloc.h.in
@@ -0,0 +1,155 @@
+// -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2003, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Sanjay Ghemawat 
+ *         .h file by Craig Silverstein 
+ */
+
+#ifndef TCMALLOC_TCMALLOC_H_
+#define TCMALLOC_TCMALLOC_H_
+
+#include                      /* for size_t */
+#ifdef __cplusplus
+#include                           /* for std::nothrow_t, std::align_val_t */
+#endif
+
+/* Define the version number so folks can check against it */
+#define TC_VERSION_MAJOR  @TC_VERSION_MAJOR@
+#define TC_VERSION_MINOR  @TC_VERSION_MINOR@
+#define TC_VERSION_PATCH  "@TC_VERSION_PATCH@"
+#define TC_VERSION_STRING "gperftools @TC_VERSION_MAJOR@.@TC_VERSION_MINOR@@TC_VERSION_PATCH@"
+
+#ifndef PERFTOOLS_NOTHROW
+
+#if __cplusplus >= 201103L
+#define PERFTOOLS_NOTHROW noexcept
+#elif defined(__cplusplus)
+#define PERFTOOLS_NOTHROW throw()
+#else
+# ifdef __GNUC__
+#  define PERFTOOLS_NOTHROW __attribute__((__nothrow__))
+# else
+#  define PERFTOOLS_NOTHROW
+# endif
+#endif
+
+#endif
+
+#ifndef PERFTOOLS_DLL_DECL
+# ifdef _WIN32
+#   define PERFTOOLS_DLL_DECL  __declspec(dllimport)
+# else
+#   define PERFTOOLS_DLL_DECL
+# endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  /*
+   * Returns a human-readable version string.  If major, minor,
+   * and/or patch are not NULL, they are set to the major version,
+   * minor version, and patch-code (a string, usually "").
+   */
+  PERFTOOLS_DLL_DECL const char* tc_version(int* major, int* minor,
+                                            const char** patch) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_free(void* ptr) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_free_sized(void *ptr, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_realloc(void* ptr, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_calloc(size_t nmemb, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void* tc_memalign(size_t __alignment,
+                                       size_t __size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL int tc_posix_memalign(void** ptr,
+                                           size_t align, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_valloc(size_t __size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t __size) PERFTOOLS_NOTHROW;
+
+  PERFTOOLS_DLL_DECL void tc_malloc_stats(void) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) PERFTOOLS_NOTHROW;
+
+  /*
+   * This is an alias for MallocExtension::instance()->GetAllocatedSize().
+   * It is equivalent to
+   *    OS X: malloc_size()
+   *    glibc: malloc_usable_size()
+   *    Windows: _msize()
+   */
+  PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) PERFTOOLS_NOTHROW;
+
+#ifdef __cplusplus
+  PERFTOOLS_DLL_DECL int tc_set_new_mode(int flag) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_new(size_t size);
+  PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size,
+                                          const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete(void* p) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_sized(void* p, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p,
+                                            const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_newarray(size_t size);
+  PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size,
+                                               const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray(void* p) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_sized(void* p, size_t size) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p,
+                                                 const std::nothrow_t&) PERFTOOLS_NOTHROW;
+
+#if defined(__cpp_aligned_new) || (defined(_MSVC_LANG) && _MSVC_LANG > 201402L)
+  PERFTOOLS_DLL_DECL void* tc_new_aligned(size_t size, std::align_val_t al);
+  PERFTOOLS_DLL_DECL void* tc_new_aligned_nothrow(size_t size, std::align_val_t al,
+                                          const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_aligned(void* p, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_sized_aligned(void* p, size_t size, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_delete_aligned_nothrow(void* p, std::align_val_t al,
+                                            const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void* tc_newarray_aligned(size_t size, std::align_val_t al);
+  PERFTOOLS_DLL_DECL void* tc_newarray_aligned_nothrow(size_t size, std::align_val_t al,
+                                               const std::nothrow_t&) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_aligned(void* p, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_sized_aligned(void* p, size_t size, std::align_val_t al) PERFTOOLS_NOTHROW;
+  PERFTOOLS_DLL_DECL void tc_deletearray_aligned_nothrow(void* p, std::align_val_t al,
+                                                 const std::nothrow_t&) PERFTOOLS_NOTHROW;
+#endif
+}
+#endif
+
+/* We're only un-defining for public */
+#if !defined(GPERFTOOLS_CONFIG_H_)
+
+#undef PERFTOOLS_NOTHROW
+
+#endif /* GPERFTOOLS_CONFIG_H_ */
+
+#endif  /* #ifndef TCMALLOC_TCMALLOC_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/ia32_modrm_map.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/ia32_modrm_map.cc
new file mode 100644
index 000000000..817ac438b
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/ia32_modrm_map.cc
@@ -0,0 +1,122 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ *
+ * Table of relevant information about how to decode the ModR/M byte.
+ * Based on information in the IA-32 Intel® Architecture
+ * Software Developer's Manual Volume 2: Instruction Set Reference.
+ */
+
+#include "mini_disassembler.h"
+#include "mini_disassembler_types.h"
+
+namespace sidestep {
+
+const ModrmEntry MiniDisassembler::s_ia16_modrm_map_[] = {
+// mod == 00
+  /* r/m == 000 */ { false, false, OS_ZERO },
+  /* r/m == 001 */ { false, false, OS_ZERO },
+  /* r/m == 010 */ { false, false, OS_ZERO },
+  /* r/m == 011 */ { false, false, OS_ZERO },
+  /* r/m == 100 */ { false, false, OS_ZERO },
+  /* r/m == 101 */ { false, false, OS_ZERO },
+  /* r/m == 110 */ { true, false, OS_WORD },
+  /* r/m == 111 */ { false, false, OS_ZERO },
+// mod == 01
+  /* r/m == 000 */ { true, false, OS_BYTE },
+  /* r/m == 001 */ { true, false, OS_BYTE },
+  /* r/m == 010 */ { true, false, OS_BYTE },
+  /* r/m == 011 */ { true, false, OS_BYTE },
+  /* r/m == 100 */ { true, false, OS_BYTE },
+  /* r/m == 101 */ { true, false, OS_BYTE },
+  /* r/m == 110 */ { true, false, OS_BYTE },
+  /* r/m == 111 */ { true, false, OS_BYTE },
+// mod == 10
+  /* r/m == 000 */ { true, false, OS_WORD },
+  /* r/m == 001 */ { true, false, OS_WORD },
+  /* r/m == 010 */ { true, false, OS_WORD },
+  /* r/m == 011 */ { true, false, OS_WORD },
+  /* r/m == 100 */ { true, false, OS_WORD },
+  /* r/m == 101 */ { true, false, OS_WORD },
+  /* r/m == 110 */ { true, false, OS_WORD },
+  /* r/m == 111 */ { true, false, OS_WORD },
+// mod == 11
+  /* r/m == 000 */ { false, false, OS_ZERO },
+  /* r/m == 001 */ { false, false, OS_ZERO },
+  /* r/m == 010 */ { false, false, OS_ZERO },
+  /* r/m == 011 */ { false, false, OS_ZERO },
+  /* r/m == 100 */ { false, false, OS_ZERO },
+  /* r/m == 101 */ { false, false, OS_ZERO },
+  /* r/m == 110 */ { false, false, OS_ZERO },
+  /* r/m == 111 */ { false, false, OS_ZERO }
+};
+
+const ModrmEntry MiniDisassembler::s_ia32_modrm_map_[] = {
+// mod == 00
+  /* r/m == 000 */ { false, false, OS_ZERO },
+  /* r/m == 001 */ { false, false, OS_ZERO },
+  /* r/m == 010 */ { false, false, OS_ZERO },
+  /* r/m == 011 */ { false, false, OS_ZERO },
+  /* r/m == 100 */ { false, true, OS_ZERO },
+  /* r/m == 101 */ { true, false, OS_DOUBLE_WORD },
+  /* r/m == 110 */ { false, false, OS_ZERO },
+  /* r/m == 111 */ { false, false, OS_ZERO },
+// mod == 01
+  /* r/m == 000 */ { true, false, OS_BYTE },
+  /* r/m == 001 */ { true, false, OS_BYTE },
+  /* r/m == 010 */ { true, false, OS_BYTE },
+  /* r/m == 011 */ { true, false, OS_BYTE },
+  /* r/m == 100 */ { true, true, OS_BYTE },
+  /* r/m == 101 */ { true, false, OS_BYTE },
+  /* r/m == 110 */ { true, false, OS_BYTE },
+  /* r/m == 111 */ { true, false, OS_BYTE },
+// mod == 10
+  /* r/m == 000 */ { true, false, OS_DOUBLE_WORD },
+  /* r/m == 001 */ { true, false, OS_DOUBLE_WORD },
+  /* r/m == 010 */ { true, false, OS_DOUBLE_WORD },
+  /* r/m == 011 */ { true, false, OS_DOUBLE_WORD },
+  /* r/m == 100 */ { true, true, OS_DOUBLE_WORD },
+  /* r/m == 101 */ { true, false, OS_DOUBLE_WORD },
+  /* r/m == 110 */ { true, false, OS_DOUBLE_WORD },
+  /* r/m == 111 */ { true, false, OS_DOUBLE_WORD },
+// mod == 11
+  /* r/m == 000 */ { false, false, OS_ZERO },
+  /* r/m == 001 */ { false, false, OS_ZERO },
+  /* r/m == 010 */ { false, false, OS_ZERO },
+  /* r/m == 011 */ { false, false, OS_ZERO },
+  /* r/m == 100 */ { false, false, OS_ZERO },
+  /* r/m == 101 */ { false, false, OS_ZERO },
+  /* r/m == 110 */ { false, false, OS_ZERO },
+  /* r/m == 111 */ { false, false, OS_ZERO },
+};
+
+};  // namespace sidestep
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/ia32_opcode_map.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/ia32_opcode_map.cc
new file mode 100644
index 000000000..9d54f6b1c
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/ia32_opcode_map.cc
@@ -0,0 +1,1220 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ *
+ * Opcode decoding maps.  Based on the IA-32 Intel® Architecture
+ * Software Developer's Manual Volume 2: Instruction Set Reference.  Idea
+ * for how to lay out the tables in memory taken from the implementation
+ * in the Bastard disassembly environment.
+ */
+
+#include "mini_disassembler.h"
+
+namespace sidestep {
+
+/*
+* This is the first table to be searched; the first field of each
+* Opcode in the table is either 0 to indicate you're in the
+* right table, or an index to the correct table, in the global
+* map g_pentiumOpcodeMap
+*/
+const Opcode s_first_opcode_byte[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF */ { 1, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x10 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x11 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x12 */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x13 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x14 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x15 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x16 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x17 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x18 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x19 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1A */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1C */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1E */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1F */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x20 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x21 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x22 */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x23 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x24 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x25 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x26 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x27 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "daa", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x28 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x29 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2A */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2C */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2E */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2F */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "das", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x30 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x31 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x32 */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x33 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x34 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x35 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x36 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x37 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "aaa", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x38 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x39 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3A */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3C */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3E */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3F */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "aas", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+#ifdef _M_X64
+  /* REX Prefixes in 64-bit mode. */
+  /* 0x40 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x41 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x42 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x43 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x44 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x45 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x46 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x47 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x48 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x49 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4A */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4B */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4C */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4D */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4E */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4F */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+#else
+  /* 0x40 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x41 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x42 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x43 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x44 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x45 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x46 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x47 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x48 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x49 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4A */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4B */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4C */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4E */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4F */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+#endif
+  /* 0x50 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x51 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x52 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x53 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x54 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x55 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x56 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x57 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x58 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x59 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5A */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5B */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5C */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5E */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5F */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x60 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "pushad", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x61 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "popad", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x62 */ { 0, IT_GENERIC, AM_G | OT_V, AM_M | OT_A, AM_NOT_USED, "bound", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x63 */ { 0, IT_GENERIC, AM_E | OT_W, AM_G | OT_W, AM_NOT_USED, "arpl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x64 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x65 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x66 */ { 0, IT_PREFIX_OPERAND, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x67 */ { 0, IT_PREFIX_ADDRESS, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x68 */ { 0, IT_GENERIC, AM_I | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x69 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_I | OT_V, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6A */ { 0, IT_GENERIC, AM_I | OT_B, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_I |  OT_B, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6C */ { 0, IT_GENERIC, AM_Y | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "insb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6D */ { 0, IT_GENERIC, AM_Y | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "insd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6E */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_X | OT_B, AM_NOT_USED, "outsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6F */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_X | OT_V, AM_NOT_USED, "outsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x70 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x71 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jno", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x72 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x73 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jnc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x74 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x75 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x76 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jbe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x77 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "ja", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x78 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "js", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x79 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jns", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7A */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jpe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7B */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jpo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7C */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7D */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jge", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7E */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jle", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7F */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x80 */ { 2, IT_REFERENCE, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x81 */ { 3, IT_REFERENCE, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x82 */ { 4, IT_REFERENCE, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x83 */ { 5, IT_REFERENCE, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x84 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x85 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x86 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x87 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x88 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x89 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8A */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8C */ { 0, IT_GENERIC, AM_E | OT_W, AM_S | OT_W, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8D */ { 0, IT_GENERIC, AM_G | OT_V, AM_M | OT_ADDRESS_MODE_M, AM_NOT_USED, "lea", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8E */ { 0, IT_GENERIC, AM_S | OT_W, AM_E | OT_W, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8F */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x90 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "nop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x91 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x92 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x93 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x94 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x95 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x96 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x97 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x98 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cwde", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x99 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cdq", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9A */ { 0, IT_JUMP, AM_A | OT_P, AM_NOT_USED, AM_NOT_USED, "callf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9B */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "wait", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9C */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "pushfd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9D */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "popfd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9E */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "sahf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9F */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "lahf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA0 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_O | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA1 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_O | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA2 */ { 0, IT_GENERIC, AM_O | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA3 */ { 0, IT_GENERIC, AM_O | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA4 */ { 0, IT_GENERIC, AM_X | OT_B, AM_Y | OT_B, AM_NOT_USED, "movsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA5 */ { 0, IT_GENERIC, AM_X | OT_V, AM_Y | OT_V, AM_NOT_USED, "movsd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA6 */ { 0, IT_GENERIC, AM_X | OT_B, AM_Y | OT_B, AM_NOT_USED, "cmpsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA7 */ { 0, IT_GENERIC, AM_X | OT_V, AM_Y | OT_V, AM_NOT_USED, "cmpsd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA8 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA9 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAA */ { 0, IT_GENERIC, AM_Y | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "stosb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAB */ { 0, IT_GENERIC, AM_Y | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "stosd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAC */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_X| OT_B, AM_NOT_USED, "lodsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAD */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_X| OT_V, AM_NOT_USED, "lodsd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAE */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_Y | OT_B, AM_NOT_USED, "scasb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAF */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_Y | OT_V, AM_NOT_USED, "scasd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB0 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB1 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB2 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB3 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB4 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB5 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB6 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB7 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+#ifdef _M_X64
+  /* 0xB8 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB9 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBA */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBB */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBC */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBD */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBE */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBF */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+#else
+  /* 0xB8 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB9 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBA */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBB */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBC */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBD */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBE */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBF */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+#endif
+  /* 0xC0 */ { 6, IT_REFERENCE, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC1 */ { 7, IT_REFERENCE, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC2 */ { 0, IT_RETURN, AM_I | OT_W, AM_NOT_USED, AM_NOT_USED, "ret", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC3 */ { 0, IT_RETURN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "ret", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC4 */ { 0, IT_GENERIC, AM_G | OT_V, AM_M | OT_P, AM_NOT_USED, "les", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC5 */ { 0, IT_GENERIC, AM_G | OT_V, AM_M | OT_P, AM_NOT_USED, "lds", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC8 */ { 0, IT_GENERIC, AM_I | OT_W, AM_I | OT_B, AM_NOT_USED, "enter", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC9 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "leave", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCA */ { 0, IT_RETURN, AM_I | OT_W, AM_NOT_USED, AM_NOT_USED, "retf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCB */ { 0, IT_RETURN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "retf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCC */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "int3", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCD */ { 0, IT_GENERIC, AM_I | OT_B, AM_NOT_USED, AM_NOT_USED, "int", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCE */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "into", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCF */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "iret", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD0 */ { 8, IT_REFERENCE, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD1 */ { 9, IT_REFERENCE, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD2 */ { 10, IT_REFERENCE, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD3 */ { 11, IT_REFERENCE, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD4 */ { 0, IT_GENERIC, AM_I | OT_B, AM_NOT_USED, AM_NOT_USED, "aam", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD5 */ { 0, IT_GENERIC, AM_I | OT_B, AM_NOT_USED, AM_NOT_USED, "aad", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD6 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD7 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "xlat", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+
+  // The following 8 lines would be references to the FPU tables, but we currently
+  // do not support the FPU instructions in this disassembler.
+
+  /* 0xD8 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD9 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xDA */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xDB */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xDC */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xDD */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xDE */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xDF */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+
+
+  /* 0xE0 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "loopnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE1 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "loopz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE2 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "loop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE3 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jcxz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE4 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "in", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE5 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "in", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE6 */ { 0, IT_GENERIC, AM_I | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "out", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE7 */ { 0, IT_GENERIC, AM_I | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "out", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE8 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "call", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE9 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xEA */ { 0, IT_JUMP, AM_A | OT_P, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xEB */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xEC */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_REGISTER | OT_W, AM_NOT_USED, "in", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xED */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_W, AM_NOT_USED, "in", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xEE */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_REGISTER | OT_B, AM_NOT_USED, "out", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xEF */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_REGISTER | OT_V, AM_NOT_USED, "out", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF0 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "lock:", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF2 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "repne:", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF3 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rep:", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF4 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "hlt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF5 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cmc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF6 */ { 12, IT_REFERENCE, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF7 */ { 13, IT_REFERENCE, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF8 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "clc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF9 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "stc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xFA */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cli", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xFB */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "sti", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xFC */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cld", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xFD */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "std", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xFE */ { 14, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xFF */ { 15, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_0f[] = {
+  /* 0x0 */ { 16, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 17, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_W, AM_NOT_USED, "lar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_W, AM_NOT_USED, "lsl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "clts", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "invd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "wbinvd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "ud2", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xE */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x10 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "movups", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "movsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "movss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "movupd" } },
+  /* 0x11 */ { 0, IT_GENERIC, AM_W | OT_PS, AM_V | OT_PS, AM_NOT_USED, "movups", true,
+    /* F2h */ { 0, IT_GENERIC, AM_W | OT_SD, AM_V | OT_SD, AM_NOT_USED, "movsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_W | OT_SS, AM_V | OT_SS, AM_NOT_USED, "movss" },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_PD, AM_V | OT_PD, AM_NOT_USED, "movupd" } },
+  /* 0x12 */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movlps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movhlps" },  // only one of ...
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movhlps" },  // ...these two is correct, Intel doesn't specify which
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_S, AM_NOT_USED, "movlpd" } },
+  /* 0x13 */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movlps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movlpd" } },
+  /* 0x14 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_Q, AM_NOT_USED, "unpcklps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_Q, AM_NOT_USED, "unpcklpd" } },
+  /* 0x15 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_Q, AM_NOT_USED, "unpckhps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_Q, AM_NOT_USED, "unpckhpd" } },
+  /* 0x16 */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movhps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movlhps" },  // only one of...
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movlhps" },  // ...these two is correct, Intel doesn't specify which
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movhpd" } },
+  /* 0x17 */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movhps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movhpd" } },
+  /* 0x18 */ { 18, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x19 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1A */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1B */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1C */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1D */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1E */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1F */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x20 */ { 0, IT_GENERIC, AM_R | OT_D, AM_C | OT_D, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x21 */ { 0, IT_GENERIC, AM_R | OT_D, AM_D | OT_D, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x22 */ { 0, IT_GENERIC, AM_C | OT_D, AM_R | OT_D, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x23 */ { 0, IT_GENERIC, AM_D | OT_D, AM_R | OT_D, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x24 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x25 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x26 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x27 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x28 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "movaps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "movapd" } },
+  /* 0x29 */ { 0, IT_GENERIC, AM_W | OT_PS, AM_V | OT_PS, AM_NOT_USED, "movaps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_PD, AM_V | OT_PD, AM_NOT_USED, "movapd" } },
+  /* 0x2A */ { 0, IT_GENERIC, AM_V | OT_PS, AM_Q | OT_Q, AM_NOT_USED, "cvtpi2ps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_E | OT_D, AM_NOT_USED, "cvtsi2sd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_E | OT_D, AM_NOT_USED, "cvtsi2ss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_Q | OT_DQ, AM_NOT_USED, "cvtpi2pd" } },
+  /* 0x2B */ { 0, IT_GENERIC, AM_W | OT_PS, AM_V | OT_PS, AM_NOT_USED, "movntps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_PD, AM_V | OT_PD, AM_NOT_USED, "movntpd" } },
+  /* 0x2C */ { 0, IT_GENERIC, AM_Q | OT_Q, AM_W | OT_PS, AM_NOT_USED, "cvttps2pi", true,
+    /* F2h */ { 0, IT_GENERIC, AM_G | OT_D, AM_W | OT_SD, AM_NOT_USED, "cvttsd2si" },
+    /* F3h */ { 0, IT_GENERIC, AM_G | OT_D, AM_W | OT_SS, AM_NOT_USED, "cvttss2si" },
+    /* 66h */ { 0, IT_GENERIC, AM_Q | OT_DQ, AM_W | OT_PD, AM_NOT_USED, "cvttpd2pi" } },
+  /* 0x2D */ { 0, IT_GENERIC, AM_Q | OT_Q, AM_W | OT_PS, AM_NOT_USED, "cvtps2pi", true,
+    /* F2h */ { 0, IT_GENERIC, AM_G | OT_D, AM_W | OT_SD, AM_NOT_USED, "cvtsd2si" },
+    /* F3h */ { 0, IT_GENERIC, AM_G | OT_D, AM_W | OT_SS, AM_NOT_USED, "cvtss2si" },
+    /* 66h */ { 0, IT_GENERIC, AM_Q | OT_DQ, AM_W | OT_PD, AM_NOT_USED, "cvtpd2pi" } },
+  /* 0x2E */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "ucomiss", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "ucomisd" } },
+  /* 0x2F */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_SS, AM_NOT_USED, "comiss", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "comisd" } },
+  /* 0x30 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "wrmsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x31 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rdtsc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x32 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rdmsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x33 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rdpmc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x34 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "sysenter", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x35 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "sysexit", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x36 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x37 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x38 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x39 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3A */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3B */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3C */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "movnti", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3D */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3E */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3F */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x40 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x41 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovno", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x42 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x43 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovnc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x44 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x45 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x46 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovbe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x47 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmova", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x48 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovs", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x49 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovns", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4A */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovpe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovpo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4C */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4D */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovge", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4E */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovle", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4F */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x50 */ { 0, IT_GENERIC, AM_E | OT_D, AM_V | OT_PS, AM_NOT_USED, "movmskps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_E | OT_D, AM_V | OT_PD, AM_NOT_USED, "movmskpd" } },
+  /* 0x51 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "sqrtps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "sqrtsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "sqrtss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "sqrtpd" } },
+  /* 0x52 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "rsqrtps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "rsqrtss" },
+    /* 66h */ { 0 } },
+  /* 0x53 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "rcpps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "rcpss" },
+    /* 66h */ { 0 } },
+  /* 0x54 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "andps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "andpd" } },
+  /* 0x55 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "andnps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "andnpd" } },
+  /* 0x56 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "orps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "orpd" } },
+  /* 0x57 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "xorps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "xorpd" } },
+  /* 0x58 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "addps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "addsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "addss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "addpd" } },
+  /* 0x59 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "mulps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "mulsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "mulss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "mulpd" } },
+  /* 0x5A */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PS, AM_NOT_USED, "cvtps2pd", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "cvtsd2ss" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "cvtss2sd" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PD, AM_NOT_USED, "cvtpd2ps" } },
+  /* 0x5B */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_DQ, AM_NOT_USED, "cvtdq2ps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_PS, AM_NOT_USED, "cvttps2dq" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_PS, AM_NOT_USED, "cvtps2dq" } },
+  /* 0x5C */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "subps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "subsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "subss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "subpd" } },
+  /* 0x5D */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "minps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "minsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "minss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "minpd" } },
+  /* 0x5E */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "divps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "divsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "divss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "divpd" } },
+  /* 0x5F */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "maxps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "maxsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "maxss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "maxpd" } },
+  /* 0x60 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpcklbw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpcklbw" } },
+  /* 0x61 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpcklwd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpcklwd" } },
+  /* 0x62 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpckldq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpckldq" } },
+  /* 0x63 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "packsswb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "packsswb" } },
+  /* 0x64 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "pcmpgtb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpgtb" } },
+  /* 0x65 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "pcmpgtw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpgtw" } },
+  /* 0x66 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "pcmpgtd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpgtd" } },
+  /* 0x67 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "packuswb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "packuswb" } },
+  /* 0x68 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpckhbw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_Q | OT_DQ, AM_NOT_USED, "punpckhbw" } },
+  /* 0x69 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpckhwd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_Q | OT_DQ, AM_NOT_USED, "punpckhwd" } },
+  /* 0x6A */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpckhdq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_Q | OT_DQ, AM_NOT_USED, "punpckhdq" } },
+  /* 0x6B */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "packssdw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_Q | OT_DQ, AM_NOT_USED, "packssdw" } },
+  /* 0x6C */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "not used without prefix", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpcklqdq" } },
+  /* 0x6D */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "not used without prefix", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpcklqdq" } },
+  /* 0x6E */ { 0, IT_GENERIC, AM_P | OT_D, AM_E | OT_D, AM_NOT_USED, "movd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_E | OT_D, AM_NOT_USED, "movd" } },
+  /* 0x6F */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "movq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "movdqu" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "movdqa" } },
+  /* 0x70 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_I |  OT_B, "pshuf", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_I | OT_B, "pshuflw" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_I | OT_B, "pshufhw" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_I | OT_B, "pshufd" } },
+  /* 0x71 */ { 19, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x72 */ { 20, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x73 */ { 21, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x74 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pcmpeqb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpeqb" } },
+  /* 0x75 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pcmpeqw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpeqw" } },
+  /* 0x76 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pcmpeqd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpeqd" } },
+  /* 0x77 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "emms", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+
+  // The following six opcodes are escapes into the MMX stuff, which this disassembler does not support.
+  /* 0x78 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x79 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7A */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7B */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7C */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7D */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+
+  /* 0x7E */ { 0, IT_GENERIC, AM_E | OT_D, AM_P | OT_D, AM_NOT_USED, "movd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movq" },
+    /* 66h */ { 0, IT_GENERIC, AM_E | OT_D, AM_V | OT_DQ, AM_NOT_USED, "movd" } },
+  /* 0x7F */ { 0, IT_GENERIC, AM_Q | OT_Q, AM_P | OT_Q, AM_NOT_USED, "movq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_V | OT_DQ, AM_NOT_USED, "movdqu" },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_V | OT_DQ, AM_NOT_USED, "movdqa" } },
+  /* 0x80 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x81 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jno", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x82 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x83 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jnc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x84 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x85 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x86 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jbe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x87 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "ja", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x88 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "js", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x89 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jns", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8A */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jpe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8B */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jpo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8C */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8D */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jge", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8E */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jle", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x8F */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x90 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "seto", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x91 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setno", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x92 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x93 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setnc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x94 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x95 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x96 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setbe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x97 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "seta", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x98 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "sets", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x99 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setns", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9A */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setpe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9B */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setpo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9C */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9D */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setge", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9E */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setle", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x9F */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA0 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA1 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA2 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cpuid", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "bt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_I | OT_B, "shld", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_I | OT_B | AM_REGISTER, "shld", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA6 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA7 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA8 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xA9 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAA */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rsm", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAB */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "bts", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAC */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_I | OT_B, "shrd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAD */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_I | OT_B | AM_REGISTER, "shrd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAE */ { 22, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xAF */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "cmpxchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "cmpxchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB2 */ { 0, IT_GENERIC, AM_M | OT_P, AM_NOT_USED, AM_NOT_USED, "lss", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "btr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB4 */ { 0, IT_GENERIC, AM_M | OT_P, AM_NOT_USED, AM_NOT_USED, "lfs", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB5 */ { 0, IT_GENERIC, AM_M | OT_P, AM_NOT_USED, AM_NOT_USED, "lgs", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB6 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_B, AM_NOT_USED, "movzx", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB7 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_W, AM_NOT_USED, "movzx", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB8 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xB9 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "ud1", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBA */ { 23, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBB */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "btc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBC */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "bsf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBD */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "bsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBE */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_B, AM_NOT_USED, "movsx", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xBF */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_W, AM_NOT_USED, "movsx", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "xadd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "xadd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC2 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_I | OT_B, "cmpps", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_I | OT_B, "cmpsd" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W  | OT_SS, AM_I | OT_B, "cmpss" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_I | OT_B, "cmppd" } },
+  /* 0xC3 */ { 0, IT_GENERIC, AM_E | OT_D, AM_G | OT_D, AM_NOT_USED, "movnti", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_E | OT_D, AM_I | OT_B, "pinsrw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_E | OT_D, AM_I | OT_B, "pinsrw" } },
+  /* 0xC5 */ { 0, IT_GENERIC, AM_G | OT_D, AM_P | OT_Q, AM_I | OT_B, "pextrw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_G | OT_D, AM_V | OT_DQ, AM_I | OT_B, "pextrw" } },
+  /* 0xC6 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_I | OT_B, "shufps", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_I | OT_B, "shufpd" } },
+  /* 0xC7 */ { 24, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC8 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xC9 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCA */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCB */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCC */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCD */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCE */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xCF */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xD1 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psrlw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrlw" } },
+  /* 0xD2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psrld", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrld" } },
+  /* 0xD3 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psrlq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrlq" } },
+  /* 0xD4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddq" } },
+  /* 0xD5 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmullw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmullw" } },
+  /* 0xD6 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "unused without prefix", true,
+    /* F2h */ { 0, IT_GENERIC, AM_P | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movdq2q" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_Q | OT_Q, AM_NOT_USED, "movq2dq" },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movq" } },
+  /* 0xD7 */ { 0, IT_GENERIC, AM_G | OT_D, AM_P | OT_Q, AM_NOT_USED, "pmovmskb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_G | OT_D, AM_V | OT_DQ, AM_NOT_USED, "pmovmskb" } },
+  /* 0xD8 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubusb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubusb" } },
+  /* 0xD9 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubusw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubusw" } },
+  /* 0xDA */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pminub", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pminub" } },
+  /* 0xDB */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pand", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pand" } },
+  /* 0xDC */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddusb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddusb" } },
+  /* 0xDD */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddusw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddusw" } },
+  /* 0xDE */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmaxub", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmaxub" } },
+  /* 0xDF */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pandn", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pandn" } },
+  /* 0xE0 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pavgb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pavgb" } },
+  /* 0xE1 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psraw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrqw" } },
+  /* 0xE2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psrad", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrad" } },
+  /* 0xE3 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pavgw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pavgw" } },
+  /* 0xE4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmulhuw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmulhuw" } },
+  /* 0xE5 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmulhuw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmulhw" } },
+  /* 0xE6 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "not used without prefix", true,
+    /* F2h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_PD, AM_NOT_USED, "cvtpd2dq" },
+    /* F3h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_DQ, AM_NOT_USED, "cvtdq2pd" },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_PD, AM_NOT_USED, "cvttpd2dq" } },
+  /* 0xE7 */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movntq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_V | OT_DQ, AM_NOT_USED, "movntdq" } },
+  /* 0xE8 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubsb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubsb" } },
+  /* 0xE9 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubsw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubsw" } },
+  /* 0xEA */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pminsw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pminsw" } },
+  /* 0xEB */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "por", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "por" } },
+  /* 0xEC */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddsb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddsb" } },
+  /* 0xED */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddsw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddsw" } },
+  /* 0xEE */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmaxsw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmaxsw" } },
+  /* 0xEF */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pxor", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pxor" } },
+  /* 0xF0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0xF1 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psllw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psllw" } },
+  /* 0xF2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pslld", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pslld" } },
+  /* 0xF3 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psllq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psllq" } },
+  /* 0xF4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmuludq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmuludq" } },
+  /* 0xF5 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmaddwd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmaddwd" } },
+  /* 0xF6 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psadbw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psadbw" } },
+  /* 0xF7 */ { 0, IT_GENERIC, AM_P | OT_PI, AM_Q | OT_PI, AM_NOT_USED, "maskmovq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "maskmovdqu" } },
+  /* 0xF8 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubb" } },
+  /* 0xF9 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubw" } },
+  /* 0xFA */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubd" } },
+  /* 0xFB */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubq" } },
+  /* 0xFC */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddb", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddb" } },
+  /* 0xFD */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddw" } },
+  /* 0xFE */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddd", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddd" } },
+  /* 0xFF */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_0f00[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "sldt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "str", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "lldt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "ltr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "verr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "verw", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_0f01[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_M | OT_S, AM_NOT_USED, AM_NOT_USED, "sgdt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_M | OT_S, AM_NOT_USED, AM_NOT_USED, "sidt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_M | OT_S, AM_NOT_USED, AM_NOT_USED, "lgdt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_M | OT_S, AM_NOT_USED, AM_NOT_USED, "lidt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "smsw", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "lmsw", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_M | OT_B, AM_NOT_USED, AM_NOT_USED, "invlpg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_0f18[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_M | OT_ADDRESS_MODE_M, AM_NOT_USED, AM_NOT_USED, "prefetch", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "prefetch", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "prefetch", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "prefetch", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_0f71[] = {
+  /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psrlw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psrlw" } },
+  /* 0x3 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psraw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psraw" } },
+  /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psllw", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psllw" } },
+  /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_0f72[] = {
+  /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psrld", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psrld" } },
+  /* 0x3 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psrad", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psrad" } },
+  /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "pslld", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "pslld" } },
+  /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_0f73[] = {
+  /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psrlq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psrlq" } },
+  /* 0x3 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psllq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psllq" } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "pslldq", true,
+    /* F2h */ { 0 },
+    /* F3h */ { 0 },
+    /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "pslldq" } },
+};
+
+const Opcode s_opcode_byte_after_0fae[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "fxsave", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "fxrstor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "ldmxcsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "stmxcsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "lfence", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "mfence", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "clflush/sfence", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+};
+
+const Opcode s_opcode_byte_after_0fba[] = {
+  /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "bt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "bts", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "btr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "btc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_0fc7[] = {
+  /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_M | OT_Q, AM_NOT_USED, AM_NOT_USED, "cmpxch8b", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_80[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_81[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_82[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_83[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_c0[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_c1[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_d0[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_d1[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_d2[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_d3[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_f6[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "not", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "neg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, OT_B | AM_REGISTER, AM_E | OT_B, AM_NOT_USED, "mul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, OT_B | AM_REGISTER, AM_E | OT_B, AM_NOT_USED, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_E | OT_B, AM_NOT_USED, "div", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_E | OT_B, AM_NOT_USED, "idiv", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_f7[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "not", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "neg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_E | OT_V, AM_NOT_USED, "mul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_E | OT_V, AM_NOT_USED, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_E | OT_V, AM_NOT_USED, "div", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_E | OT_V, AM_NOT_USED, "idiv", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_fe[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+const Opcode s_opcode_byte_after_ff[] = {
+  /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x2 */ { 0, IT_JUMP, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "call", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x3 */ { 0, IT_JUMP, AM_E | OT_P, AM_NOT_USED, AM_NOT_USED, "call", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x4 */ { 0, IT_JUMP, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x5 */ { 0, IT_JUMP, AM_E | OT_P, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } },
+  /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }
+};
+
+/*
+* A table of all the other tables, containing some extra information, e.g.
+* how to mask out the byte we're looking at.
+*/
+const OpcodeTable MiniDisassembler::s_ia32_opcode_map_[]={
+  // One-byte opcodes and jumps to larger
+  /*  0 */ {s_first_opcode_byte, 0, 0xff, 0, 0xff},
+  // Two-byte opcodes (second byte)
+  /*  1 */ {s_opcode_byte_after_0f, 0, 0xff, 0, 0xff},
+  // Start of tables for opcodes using ModR/M bits as extension
+  /*  2 */ {s_opcode_byte_after_80, 3, 0x07, 0, 0x07},
+  /*  3 */ {s_opcode_byte_after_81, 3, 0x07, 0, 0x07},
+  /*  4 */ {s_opcode_byte_after_82, 3, 0x07, 0, 0x07},
+  /*  5 */ {s_opcode_byte_after_83, 3, 0x07, 0, 0x07},
+  /*  6 */ {s_opcode_byte_after_c0, 3, 0x07, 0, 0x07},
+  /*  7 */ {s_opcode_byte_after_c1, 3, 0x07, 0, 0x07},
+  /*  8 */ {s_opcode_byte_after_d0, 3, 0x07, 0, 0x07},
+  /*  9 */ {s_opcode_byte_after_d1, 3, 0x07, 0, 0x07},
+  /* 10 */ {s_opcode_byte_after_d2, 3, 0x07, 0, 0x07},
+  /* 11 */ {s_opcode_byte_after_d3, 3, 0x07, 0, 0x07},
+  /* 12 */ {s_opcode_byte_after_f6, 3, 0x07, 0, 0x07},
+  /* 13 */ {s_opcode_byte_after_f7, 3, 0x07, 0, 0x07},
+  /* 14 */ {s_opcode_byte_after_fe, 3, 0x07, 0, 0x01},
+  /* 15 */ {s_opcode_byte_after_ff, 3, 0x07, 0, 0x07},
+  /* 16 */ {s_opcode_byte_after_0f00, 3, 0x07, 0, 0x07},
+  /* 17 */ {s_opcode_byte_after_0f01, 3, 0x07, 0, 0x07},
+  /* 18 */ {s_opcode_byte_after_0f18, 3, 0x07, 0, 0x07},
+  /* 19 */ {s_opcode_byte_after_0f71, 3, 0x07, 0, 0x07},
+  /* 20 */ {s_opcode_byte_after_0f72, 3, 0x07, 0, 0x07},
+  /* 21 */ {s_opcode_byte_after_0f73, 3, 0x07, 0, 0x07},
+  /* 22 */ {s_opcode_byte_after_0fae, 3, 0x07, 0, 0x07},
+  /* 23 */ {s_opcode_byte_after_0fba, 3, 0x07, 0, 0x07},
+  /* 24 */ {s_opcode_byte_after_0fc7, 3, 0x07, 0, 0x01}
+};
+
+};  // namespace sidestep
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/mingw.h b/trunk/3rdparty/gperftools-2-fit/src/windows/mingw.h
new file mode 100644
index 000000000..542f9ae19
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/mingw.h
@@ -0,0 +1,72 @@
+/* -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Craig Silverstein
+ *
+ * MinGW is an interesting mix of unix and windows.  We use a normal
+ * configure script, but still need the windows port.h to define some
+ * stuff that MinGW doesn't support, like pthreads.
+ */
+
+#ifndef GOOGLE_PERFTOOLS_WINDOWS_MINGW_H_
+#define GOOGLE_PERFTOOLS_WINDOWS_MINGW_H_
+
+#ifdef __MINGW32__
+
+// Older version of the mingw msvcrt don't define _aligned_malloc
+#if __MSVCRT_VERSION__ < 0x0700
+# define PERFTOOLS_NO_ALIGNED_MALLOC 1
+#endif
+
+// This must be defined before the windows.h is included.  We need at
+// least 0x0400 for mutex.h to have access to TryLock, and at least
+// 0x0501 for patch_functions.cc to have access to GetModuleHandleEx.
+// (This latter is an optimization we could take out if need be.)
+#ifndef _WIN32_WINNT
+# define _WIN32_WINNT 0x0501
+#endif
+
+// Some mingw distributions have a pthreads wrapper, but it doesn't
+// work as well as native windows spinlocks (at least for us).  So
+// pretend the pthreads wrapper doesn't exist, even when it does.
+#ifndef HAVE_PTHREAD_DESPITE_ASKING_FOR
+#undef HAVE_PTHREAD
+#endif
+
+#undef HAVE_FORK
+
+#define HAVE_PID_T
+
+#include "windows/port.h"
+
+#endif  /* __MINGW32__ */
+
+#endif  /* GOOGLE_PERFTOOLS_WINDOWS_MINGW_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler.cc
new file mode 100644
index 000000000..35d7a9d5f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler.cc
@@ -0,0 +1,432 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ *
+ * Implementation of MiniDisassembler.
+ */
+
+#include "mini_disassembler.h"
+
+namespace sidestep {
+
+MiniDisassembler::MiniDisassembler(bool operand_default_is_32_bits,
+                                   bool address_default_is_32_bits)
+    : operand_default_is_32_bits_(operand_default_is_32_bits),
+      address_default_is_32_bits_(address_default_is_32_bits) {
+  Initialize();
+}
+
+MiniDisassembler::MiniDisassembler()
+    : operand_default_is_32_bits_(true),
+      address_default_is_32_bits_(true) {
+  Initialize();
+}
+
+InstructionType MiniDisassembler::Disassemble(
+    unsigned char* start_byte,
+    unsigned int& instruction_bytes) {
+  // Clean up any state from previous invocations.
+  Initialize();
+
+  // Start by processing any prefixes.
+  unsigned char* current_byte = start_byte;
+  unsigned int size = 0;
+  InstructionType instruction_type = ProcessPrefixes(current_byte, size);
+
+  if (IT_UNKNOWN == instruction_type)
+    return instruction_type;
+
+  current_byte += size;
+  size = 0;
+
+  // Invariant: We have stripped all prefixes, and the operand_is_32_bits_
+  // and address_is_32_bits_ flags are correctly set.
+
+  instruction_type = ProcessOpcode(current_byte, 0, size);
+
+  // Check for error processing instruction
+  if ((IT_UNKNOWN == instruction_type_) || (IT_UNUSED == instruction_type_)) {
+    return IT_UNKNOWN;
+  }
+
+  current_byte += size;
+
+  // Invariant: operand_bytes_ indicates the total size of operands
+  // specified by the opcode and/or ModR/M byte and/or SIB byte.
+  // pCurrentByte points to the first byte after the ModR/M byte, or after
+  // the SIB byte if it is present (i.e. the first byte of any operands
+  // encoded in the instruction).
+
+  // We get the total length of any prefixes, the opcode, and the ModR/M and
+  // SIB bytes if present, by taking the difference of the original starting
+  // address and the current byte (which points to the first byte of the
+  // operands if present, or to the first byte of the next instruction if
+  // they are not).  Adding the count of bytes in the operands encoded in
+  // the instruction gives us the full length of the instruction in bytes.
+  instruction_bytes += operand_bytes_ + (current_byte - start_byte);
+
+  // Return the instruction type, which was set by ProcessOpcode().
+  return instruction_type_;
+}
+
+void MiniDisassembler::Initialize() {
+  operand_is_32_bits_ = operand_default_is_32_bits_;
+  address_is_32_bits_ = address_default_is_32_bits_;
+#ifdef _M_X64
+  operand_default_support_64_bits_ = true;
+#else
+  operand_default_support_64_bits_ = false;
+#endif
+  operand_is_64_bits_ = false;
+  operand_bytes_ = 0;
+  have_modrm_ = false;
+  should_decode_modrm_ = false;
+  instruction_type_ = IT_UNKNOWN;
+  got_f2_prefix_ = false;
+  got_f3_prefix_ = false;
+  got_66_prefix_ = false;
+}
+
+InstructionType MiniDisassembler::ProcessPrefixes(unsigned char* start_byte,
+                                                  unsigned int& size) {
+  InstructionType instruction_type = IT_GENERIC;
+  const Opcode& opcode = s_ia32_opcode_map_[0].table_[*start_byte];
+
+  switch (opcode.type_) {
+    case IT_PREFIX_ADDRESS:
+      address_is_32_bits_ = !address_default_is_32_bits_;
+      goto nochangeoperand;
+    case IT_PREFIX_OPERAND:
+      operand_is_32_bits_ = !operand_default_is_32_bits_;
+      nochangeoperand:
+    case IT_PREFIX:
+
+      if (0xF2 == (*start_byte))
+        got_f2_prefix_ = true;
+      else if (0xF3 == (*start_byte))
+        got_f3_prefix_ = true;
+      else if (0x66 == (*start_byte))
+        got_66_prefix_ = true;
+      else if (operand_default_support_64_bits_ && (*start_byte) & 0x48)
+        operand_is_64_bits_ = true;
+
+      instruction_type = opcode.type_;
+      size ++;
+      // we got a prefix, so add one and check next byte
+      ProcessPrefixes(start_byte + 1, size);
+    default:
+      break;   // not a prefix byte
+  }
+
+  return instruction_type;
+}
+
+InstructionType MiniDisassembler::ProcessOpcode(unsigned char* start_byte,
+                                                unsigned int table_index,
+                                                unsigned int& size) {
+  const OpcodeTable& table = s_ia32_opcode_map_[table_index];   // Get our table
+  unsigned char current_byte = (*start_byte) >> table.shift_;
+  current_byte = current_byte & table.mask_;  // Mask out the bits we will use
+
+  // Check whether the byte we have is inside the table we have.
+  if (current_byte < table.min_lim_ || current_byte > table.max_lim_) {
+    instruction_type_ = IT_UNKNOWN;
+    return instruction_type_;
+  }
+
+  const Opcode& opcode = table.table_[current_byte];
+  if (IT_UNUSED == opcode.type_) {
+    // This instruction is not used by the IA-32 ISA, so we indicate
+    // this to the user.  Probably means that we were pointed to
+    // a byte in memory that was not the start of an instruction.
+    instruction_type_ = IT_UNUSED;
+    return instruction_type_;
+  } else if (IT_REFERENCE == opcode.type_) {
+    // We are looking at an opcode that has more bytes (or is continued
+    // in the ModR/M byte).  Recursively find the opcode definition in
+    // the table for the opcode's next byte.
+    size++;
+    ProcessOpcode(start_byte + 1, opcode.table_index_, size);
+    return instruction_type_;
+  }
+
+  const SpecificOpcode* specific_opcode = (SpecificOpcode*)&opcode;
+  if (opcode.is_prefix_dependent_) {
+    if (got_f2_prefix_ && opcode.opcode_if_f2_prefix_.mnemonic_ != 0) {
+      specific_opcode = &opcode.opcode_if_f2_prefix_;
+    } else if (got_f3_prefix_ && opcode.opcode_if_f3_prefix_.mnemonic_ != 0) {
+      specific_opcode = &opcode.opcode_if_f3_prefix_;
+    } else if (got_66_prefix_ && opcode.opcode_if_66_prefix_.mnemonic_ != 0) {
+      specific_opcode = &opcode.opcode_if_66_prefix_;
+    }
+  }
+
+  // Inv: The opcode type is known.
+  instruction_type_ = specific_opcode->type_;
+
+  // Let's process the operand types to see if we have any immediate
+  // operands, and/or a ModR/M byte.
+
+  ProcessOperand(specific_opcode->flag_dest_);
+  ProcessOperand(specific_opcode->flag_source_);
+  ProcessOperand(specific_opcode->flag_aux_);
+
+  // Inv: We have processed the opcode and incremented operand_bytes_
+  // by the number of bytes of any operands specified by the opcode
+  // that are stored in the instruction (not registers etc.).  Now
+  // we need to return the total number of bytes for the opcode and
+  // for the ModR/M or SIB bytes if they are present.
+
+  if (table.mask_ != 0xff) {
+    if (have_modrm_) {
+      // we're looking at a ModR/M byte so we're not going to
+      // count that into the opcode size
+      ProcessModrm(start_byte, size);
+      return IT_GENERIC;
+    } else {
+      // need to count the ModR/M byte even if it's just being
+      // used for opcode extension
+      size++;
+      return IT_GENERIC;
+    }
+  } else {
+    if (have_modrm_) {
+      // The ModR/M byte is the next byte.
+      size++;
+      ProcessModrm(start_byte + 1, size);
+      return IT_GENERIC;
+    } else {
+      size++;
+      return IT_GENERIC;
+    }
+  }
+}
+
+bool MiniDisassembler::ProcessOperand(int flag_operand) {
+  bool succeeded = true;
+  if (AM_NOT_USED == flag_operand)
+    return succeeded;
+
+  // Decide what to do based on the addressing mode.
+  switch (flag_operand & AM_MASK) {
+    // No ModR/M byte indicated by these addressing modes, and no
+    // additional (e.g. immediate) parameters.
+    case AM_A: // Direct address
+    case AM_F: // EFLAGS register
+    case AM_X: // Memory addressed by the DS:SI register pair
+    case AM_Y: // Memory addressed by the ES:DI register pair
+    case AM_IMPLICIT: // Parameter is implicit, occupies no space in
+                       // instruction
+      break;
+
+    // There is a ModR/M byte but it does not necessarily need
+    // to be decoded.
+    case AM_C: // reg field of ModR/M selects a control register
+    case AM_D: // reg field of ModR/M selects a debug register
+    case AM_G: // reg field of ModR/M selects a general register
+    case AM_P: // reg field of ModR/M selects an MMX register
+    case AM_R: // mod field of ModR/M may refer only to a general register
+    case AM_S: // reg field of ModR/M selects a segment register
+    case AM_T: // reg field of ModR/M selects a test register
+    case AM_V: // reg field of ModR/M selects a 128-bit XMM register
+      have_modrm_ = true;
+      break;
+
+    // In these addressing modes, there is a ModR/M byte and it needs to be
+    // decoded. No other (e.g. immediate) params than indicated in ModR/M.
+    case AM_E: // Operand is either a general-purpose register or memory,
+                 // specified by ModR/M byte
+    case AM_M: // ModR/M byte will refer only to memory
+    case AM_Q: // Operand is either an MMX register or memory (complex
+                 // evaluation), specified by ModR/M byte
+    case AM_W: // Operand is either a 128-bit XMM register or memory (complex
+                 // eval), specified by ModR/M byte
+      have_modrm_ = true;
+      should_decode_modrm_ = true;
+      break;
+
+    // These addressing modes specify an immediate or an offset value
+    // directly, so we need to look at the operand type to see how many
+    // bytes.
+    case AM_I: // Immediate data.
+    case AM_J: // Jump to offset.
+    case AM_O: // Operand is at offset.
+      switch (flag_operand & OT_MASK) {
+        case OT_B: // Byte regardless of operand-size attribute.
+          operand_bytes_ += OS_BYTE;
+          break;
+        case OT_C: // Byte or word, depending on operand-size attribute.
+          if (operand_is_32_bits_)
+            operand_bytes_ += OS_WORD;
+          else
+            operand_bytes_ += OS_BYTE;
+          break;
+        case OT_D: // Doubleword, regardless of operand-size attribute.
+          operand_bytes_ += OS_DOUBLE_WORD;
+          break;
+        case OT_DQ: // Double-quadword, regardless of operand-size attribute.
+          operand_bytes_ += OS_DOUBLE_QUAD_WORD;
+          break;
+        case OT_P: // 32-bit or 48-bit pointer, depending on operand-size
+                     // attribute.
+          if (operand_is_32_bits_)
+            operand_bytes_ += OS_48_BIT_POINTER;
+          else
+            operand_bytes_ += OS_32_BIT_POINTER;
+          break;
+        case OT_PS: // 128-bit packed single-precision floating-point data.
+          operand_bytes_ += OS_128_BIT_PACKED_SINGLE_PRECISION_FLOATING;
+          break;
+        case OT_Q: // Quadword, regardless of operand-size attribute.
+          operand_bytes_ += OS_QUAD_WORD;
+          break;
+        case OT_S: // 6-byte pseudo-descriptor.
+          operand_bytes_ += OS_PSEUDO_DESCRIPTOR;
+          break;
+        case OT_SD: // Scalar Double-Precision Floating-Point Value
+        case OT_PD: // Unaligned packed double-precision floating point value
+          operand_bytes_ += OS_DOUBLE_PRECISION_FLOATING;
+          break;
+        case OT_SS:
+          // Scalar element of a 128-bit packed single-precision
+          // floating data.
+          // We simply return enItUnknown since we don't have to support
+          // floating point
+          succeeded = false;
+          break;
+        case OT_V: // Word, doubleword or quadword, depending on operand-size
+                   // attribute.
+          if (operand_is_64_bits_ && flag_operand & AM_I &&
+              flag_operand & IOS_64)
+            operand_bytes_ += OS_QUAD_WORD;
+          else if (operand_is_32_bits_)
+            operand_bytes_ += OS_DOUBLE_WORD;
+          else
+            operand_bytes_ += OS_WORD;
+          break;
+        case OT_W: // Word, regardless of operand-size attribute.
+          operand_bytes_ += OS_WORD;
+          break;
+
+        // Can safely ignore these.
+        case OT_A: // Two one-word operands in memory or two double-word
+                     // operands in memory
+        case OT_PI: // Quadword MMX technology register (e.g. mm0)
+        case OT_SI: // Doubleword integer register (e.g., eax)
+          break;
+
+        default:
+          break;
+      }
+      break;
+
+    default:
+      break;
+  }
+
+  return succeeded;
+}
+
+bool MiniDisassembler::ProcessModrm(unsigned char* start_byte,
+                                    unsigned int& size) {
+  // If we don't need to decode, we just return the size of the ModR/M
+  // byte (there is never a SIB byte in this case).
+  if (!should_decode_modrm_) {
+    size++;
+    return true;
+  }
+
+  // We never care about the reg field, only the combination of the mod
+  // and r/m fields, so let's start by packing those fields together into
+  // 5 bits.
+  unsigned char modrm = (*start_byte);
+  unsigned char mod = modrm & 0xC0; // mask out top two bits to get mod field
+  modrm = modrm & 0x07; // mask out bottom 3 bits to get r/m field
+  mod = mod >> 3; // shift the mod field to the right place
+  modrm = mod | modrm; // combine the r/m and mod fields as discussed
+  mod = mod >> 3; // shift the mod field to bits 2..0
+
+  // Invariant: modrm contains the mod field in bits 4..3 and the r/m field
+  // in bits 2..0, and mod contains the mod field in bits 2..0
+
+  const ModrmEntry* modrm_entry = 0;
+  if (address_is_32_bits_)
+    modrm_entry = &s_ia32_modrm_map_[modrm];
+  else
+    modrm_entry = &s_ia16_modrm_map_[modrm];
+
+  // Invariant: modrm_entry points to information that we need to decode
+  // the ModR/M byte.
+
+  // Add to the count of operand bytes, if the ModR/M byte indicates
+  // that some operands are encoded in the instruction.
+  if (modrm_entry->is_encoded_in_instruction_)
+    operand_bytes_ += modrm_entry->operand_size_;
+
+  // Process the SIB byte if necessary, and return the count
+  // of ModR/M and SIB bytes.
+  if (modrm_entry->use_sib_byte_) {
+    size++;
+    return ProcessSib(start_byte + 1, mod, size);
+  } else {
+    size++;
+    return true;
+  }
+}
+
+bool MiniDisassembler::ProcessSib(unsigned char* start_byte,
+                                  unsigned char mod,
+                                  unsigned int& size) {
+  // get the mod field from the 2..0 bits of the SIB byte
+  unsigned char sib_base = (*start_byte) & 0x07;
+  if (0x05 == sib_base) {
+    switch (mod) {
+    case 0x00: // mod == 00
+    case 0x02: // mod == 10
+      operand_bytes_ += OS_DOUBLE_WORD;
+      break;
+    case 0x01: // mod == 01
+      operand_bytes_ += OS_BYTE;
+      break;
+    case 0x03: // mod == 11
+      // According to the IA-32 docs, there does not seem to be a disp
+      // value for this value of mod
+    default:
+      break;
+    }
+  }
+
+  size++;
+  return true;
+}
+
+};  // namespace sidestep
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler.h b/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler.h
new file mode 100644
index 000000000..8b3e4ba17
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler.h
@@ -0,0 +1,198 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ *
+ * Definition of MiniDisassembler.
+ */
+
+#ifndef GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_H_
+#define GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_H_
+
+#include "config.h"
+#include 
+#include "mini_disassembler_types.h"
+
+// compatibility shim
+#include "base/logging.h"
+#define SIDESTEP_ASSERT(cond)  RAW_DCHECK(cond, #cond)
+#define SIDESTEP_LOG(msg)      RAW_VLOG(1, msg)
+
+namespace sidestep {
+
+// This small disassembler is very limited
+// in its functionality, and in fact does only the bare minimum required by the
+// preamble patching utility.  It may be useful for other purposes, however.
+//
+// The limitations include at least the following:
+//  -# No support for coprocessor opcodes, MMX, etc.
+//  -# No machine-readable identification of opcodes or decoding of
+//     assembly parameters. The name of the opcode (as a string) is given,
+//     however, to aid debugging.
+//
+// You may ask what this little disassembler actually does, then?  The answer is
+// that it does the following, which is exactly what the patching utility needs:
+//  -# Indicates if opcode is a jump (any kind) or a return (any kind)
+//     because this is important for the patching utility to determine if
+//     a function is too short or there are jumps too early in it for it
+//     to be preamble patched.
+//  -# The opcode length is always calculated, so that the patching utility
+//     can figure out where the next instruction starts, and whether it
+//     already has enough instructions to replace with the absolute jump
+//     to the patching code.
+//
+// The usage is quite simple; just create a MiniDisassembler and use its
+// Disassemble() method.
+//
+// If you would like to extend this disassembler, please refer to the
+// IA-32 Intel® Architecture Software Developer's Manual Volume 2:
+// Instruction Set Reference for information about operand decoding
+// etc.
+class PERFTOOLS_DLL_DECL MiniDisassembler {
+ public:
+
+  // Creates a new instance and sets defaults.
+  //
+  // @param operand_default_32_bits If true, the default operand size is
+  // set to 32 bits, which is the default under Win32. Otherwise it is 16 bits.
+  // @param address_default_32_bits If true, the default address size is
+  // set to 32 bits, which is the default under Win32. Otherwise it is 16 bits.
+  MiniDisassembler(bool operand_default_32_bits,
+                   bool address_default_32_bits);
+
+  // Equivalent to MiniDisassembler(true, true);
+  MiniDisassembler();
+
+  // Attempts to disassemble a single instruction starting from the
+  // address in memory it is pointed to.
+  //
+  // @param start Address where disassembly should start.
+  // @param instruction_bytes Variable that will be incremented by
+  // the length in bytes of the instruction.
+  // @return enItJump, enItReturn or enItGeneric on success.  enItUnknown
+  // if unable to disassemble, enItUnused if this seems to be an unused
+  // opcode. In the last two (error) cases, cbInstruction will be set
+  // to 0xffffffff.
+  //
+  // @post This instance of the disassembler is ready to be used again,
+  // with unchanged defaults from creation time.
+  InstructionType Disassemble(unsigned char* start, unsigned int& instruction_bytes);
+
+ private:
+
+  // Makes the disassembler ready for reuse.
+  void Initialize();
+
+  // Sets the flags for address and operand sizes.
+  // @return Number of prefix bytes.
+  InstructionType ProcessPrefixes(unsigned char* start, unsigned int& size);
+
+  // Sets the flag for whether we have ModR/M, and increments
+  // operand_bytes_ if any are specifies by the opcode directly.
+  // @return Number of opcode bytes.
+  InstructionType ProcessOpcode(unsigned char* start,
+                                unsigned int table,
+                                unsigned int& size);
+
+  // Checks the type of the supplied operand.  Increments
+  // operand_bytes_ if it directly indicates an immediate etc.
+  // operand.  Asserts have_modrm_ if the operand specifies
+  // a ModR/M byte.
+  bool ProcessOperand(int flag_operand);
+
+  // Increments operand_bytes_ by size specified by ModR/M and
+  // by SIB if present.
+  // @return 0 in case of error, 1 if there is just a ModR/M byte,
+  // 2 if there is a ModR/M byte and a SIB byte.
+  bool ProcessModrm(unsigned char* start, unsigned int& size);
+
+  // Processes the SIB byte that it is pointed to.
+  // @param start Pointer to the SIB byte.
+  // @param mod The mod field from the ModR/M byte.
+  // @return 1 to indicate success (indicates 1 SIB byte)
+  bool ProcessSib(unsigned char* start, unsigned char mod, unsigned int& size);
+
+  // The instruction type we have decoded from the opcode.
+  InstructionType instruction_type_;
+
+  // Counts the number of bytes that is occupied by operands in
+  // the current instruction (note: we don't care about how large
+  // operands stored in registers etc. are).
+  unsigned int operand_bytes_;
+
+  // True iff there is a ModR/M byte in this instruction.
+  bool have_modrm_;
+
+  // True iff we need to decode the ModR/M byte (sometimes it just
+  // points to a register, we can tell by the addressing mode).
+  bool should_decode_modrm_;
+
+  // Current operand size is 32 bits if true, 16 bits if false.
+  bool operand_is_32_bits_;
+
+  // Default operand size is 32 bits if true, 16 bits if false.
+  bool operand_default_is_32_bits_;
+
+  // Current address size is 32 bits if true, 16 bits if false.
+  bool address_is_32_bits_;
+
+  // Default address size is 32 bits if true, 16 bits if false.
+  bool address_default_is_32_bits_;
+
+  // Determines if 64 bit operands are supported (x64).
+  bool operand_default_support_64_bits_;
+
+  // Current operand size is 64 bits if true, 32 bits if false.
+  bool operand_is_64_bits_;
+
+  // Huge big opcode table based on the IA-32 manual, defined
+  // in Ia32OpcodeMap.cc
+  static const OpcodeTable s_ia32_opcode_map_[];
+
+  // Somewhat smaller table to help with decoding ModR/M bytes
+  // when 16-bit addressing mode is being used.  Defined in
+  // Ia32ModrmMap.cc
+  static const ModrmEntry s_ia16_modrm_map_[];
+
+  // Somewhat smaller table to help with decoding ModR/M bytes
+  // when 32-bit addressing mode is being used.  Defined in
+  // Ia32ModrmMap.cc
+  static const ModrmEntry s_ia32_modrm_map_[];
+
+  // Indicators of whether we got certain prefixes that certain
+  // silly Intel instructions depend on in nonstandard ways for
+  // their behaviors.
+  bool got_f2_prefix_, got_f3_prefix_, got_66_prefix_;
+};
+
+};  // namespace sidestep
+
+#endif  // GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler_types.h b/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler_types.h
new file mode 100644
index 000000000..97da92db3
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/mini_disassembler_types.h
@@ -0,0 +1,237 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ *
+ * Several simple types used by the disassembler and some of the patching
+ * mechanisms.
+ */
+
+#ifndef GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_TYPES_H_
+#define GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_TYPES_H_
+
+namespace sidestep {
+
+// Categories of instructions that we care about
+enum InstructionType {
+  // This opcode is not used
+  IT_UNUSED,
+  // This disassembler does not recognize this opcode (error)
+  IT_UNKNOWN,
+  // This is not an instruction but a reference to another table
+  IT_REFERENCE,
+  // This byte is a prefix byte that we can ignore
+  IT_PREFIX,
+  // This is a prefix byte that switches to the nondefault address size
+  IT_PREFIX_ADDRESS,
+  // This is a prefix byte that switches to the nondefault operand size
+  IT_PREFIX_OPERAND,
+  // A jump or call instruction
+  IT_JUMP,
+  // A return instruction
+  IT_RETURN,
+  // Any other type of instruction (in this case we don't care what it is)
+  IT_GENERIC,
+};
+
+// Lists IA-32 operand sizes in multiples of 8 bits
+enum OperandSize {
+  OS_ZERO = 0,
+  OS_BYTE = 1,
+  OS_WORD = 2,
+  OS_DOUBLE_WORD = 4,
+  OS_QUAD_WORD = 8,
+  OS_DOUBLE_QUAD_WORD = 16,
+  OS_32_BIT_POINTER = 32/8,
+  OS_48_BIT_POINTER = 48/8,
+  OS_SINGLE_PRECISION_FLOATING = 32/8,
+  OS_DOUBLE_PRECISION_FLOATING = 64/8,
+  OS_DOUBLE_EXTENDED_PRECISION_FLOATING = 80/8,
+  OS_128_BIT_PACKED_SINGLE_PRECISION_FLOATING = 128/8,
+  OS_PSEUDO_DESCRIPTOR = 6
+};
+
+// Operand addressing methods from the IA-32 manual.  The enAmMask value
+// is a mask for the rest.  The other enumeration values are named for the
+// names given to the addressing methods in the manual, e.g. enAm_D is for
+// the D addressing method.
+//
+// The reason we use a full 4 bytes and a mask, is that we need to combine
+// these flags with the enOperandType to store the details
+// on the operand in a single integer.
+enum AddressingMethod {
+  AM_NOT_USED = 0,        // This operand is not used for this instruction
+  AM_MASK = 0x00FF0000,  // Mask for the rest of the values in this enumeration
+  AM_A = 0x00010000,    // A addressing type
+  AM_C = 0x00020000,    // C addressing type
+  AM_D = 0x00030000,    // D addressing type
+  AM_E = 0x00040000,    // E addressing type
+  AM_F = 0x00050000,    // F addressing type
+  AM_G = 0x00060000,    // G addressing type
+  AM_I = 0x00070000,    // I addressing type
+  AM_J = 0x00080000,    // J addressing type
+  AM_M = 0x00090000,    // M addressing type
+  AM_O = 0x000A0000,    // O addressing type
+  AM_P = 0x000B0000,    // P addressing type
+  AM_Q = 0x000C0000,    // Q addressing type
+  AM_R = 0x000D0000,    // R addressing type
+  AM_S = 0x000E0000,    // S addressing type
+  AM_T = 0x000F0000,    // T addressing type
+  AM_V = 0x00100000,    // V addressing type
+  AM_W = 0x00110000,    // W addressing type
+  AM_X = 0x00120000,    // X addressing type
+  AM_Y = 0x00130000,    // Y addressing type
+  AM_REGISTER = 0x00140000,  // Specific register is always used as this op
+  AM_IMPLICIT = 0x00150000,  // An implicit, fixed value is used
+};
+
+// Operand types from the IA-32 manual. The enOtMask value is
+// a mask for the rest. The rest of the values are named for the
+// names given to these operand types in the manual, e.g. enOt_ps
+// is for the ps operand type in the manual.
+//
+// The reason we use a full 4 bytes and a mask, is that we need
+// to combine these flags with the enAddressingMethod to store the details
+// on the operand in a single integer.
+enum OperandType {
+  OT_MASK = 0xFF000000,
+  OT_A = 0x01000000,
+  OT_B = 0x02000000,
+  OT_C = 0x03000000,
+  OT_D = 0x04000000,
+  OT_DQ = 0x05000000,
+  OT_P = 0x06000000,
+  OT_PI = 0x07000000,
+  OT_PS = 0x08000000,  // actually unsupported for (we don't know its size)
+  OT_Q = 0x09000000,
+  OT_S = 0x0A000000,
+  OT_SS = 0x0B000000,
+  OT_SI = 0x0C000000,
+  OT_V = 0x0D000000,
+  OT_W = 0x0E000000,
+  OT_SD = 0x0F000000,  // scalar double-precision floating-point value
+  OT_PD = 0x10000000,  // double-precision floating point
+  // dummy "operand type" for address mode M - which doesn't specify
+  // operand type
+  OT_ADDRESS_MODE_M = 0x80000000
+};
+
+// Flag that indicates if an immediate operand is 64-bits.
+//
+// The Intel 64 and IA-32 Architecture Software Developer's Manual currently
+// defines MOV as the only instruction supporting a 64-bit immediate operand.
+enum ImmediateOperandSize {
+  IOS_MASK = 0x0000F000,
+  IOS_DEFAULT = 0x0,
+  IOS_64 = 0x00001000
+};
+
+// Everything that's in an Opcode (see below) except the three
+// alternative opcode structs for different prefixes.
+struct SpecificOpcode {
+  // Index to continuation table, or 0 if this is the last
+  // byte in the opcode.
+  int table_index_;
+
+  // The opcode type
+  InstructionType type_;
+
+  // Description of the type of the dest, src and aux operands,
+  // put together from enOperandType, enAddressingMethod and
+  // enImmediateOperandSize flags.
+  int flag_dest_;
+  int flag_source_;
+  int flag_aux_;
+
+  // We indicate the mnemonic for debugging purposes
+  const char* mnemonic_;
+};
+
+// The information we keep in our tables about each of the different
+// valid instructions recognized by the IA-32 architecture.
+struct Opcode {
+  // Index to continuation table, or 0 if this is the last
+  // byte in the opcode.
+  int table_index_;
+
+  // The opcode type
+  InstructionType type_;
+
+  // Description of the type of the dest, src and aux operands,
+  // put together from an enOperandType flag and an enAddressingMethod
+  // flag.
+  unsigned flag_dest_;
+  unsigned flag_source_;
+  unsigned flag_aux_;
+
+  // We indicate the mnemonic for debugging purposes
+  const char* mnemonic_;
+
+  // Alternative opcode info if certain prefixes are specified.
+  // In most cases, all of these are zeroed-out.  Only used if
+  // bPrefixDependent is true.
+  bool is_prefix_dependent_;
+  SpecificOpcode opcode_if_f2_prefix_;
+  SpecificOpcode opcode_if_f3_prefix_;
+  SpecificOpcode opcode_if_66_prefix_;
+};
+
+// Information about each table entry.
+struct OpcodeTable {
+  // Table of instruction entries
+  const Opcode* table_;
+  // How many bytes left to shift ModR/M byte before applying mask
+  unsigned char shift_;
+  // Mask to apply to byte being looked at before comparing to table
+  unsigned char mask_;
+  // Minimum/maximum indexes in table.
+  unsigned char min_lim_;
+  unsigned char max_lim_;
+};
+
+// Information about each entry in table used to decode ModR/M byte.
+struct ModrmEntry {
+  // Is the operand encoded as bytes in the instruction (rather than
+  // if it's e.g. a register in which case it's just encoded in the
+  // ModR/M byte)
+  bool is_encoded_in_instruction_;
+
+  // Is there a SIB byte?  In this case we always need to decode it.
+  bool use_sib_byte_;
+
+  // What is the size of the operand (only important if it's encoded
+  // in the instruction)?
+  OperandSize operand_size_;
+};
+
+};  // namespace sidestep
+
+#endif  // GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_TYPES_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/nm-pdb.c b/trunk/3rdparty/gperftools-2-fit/src/windows/nm-pdb.c
new file mode 100644
index 000000000..9f6f43107
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/nm-pdb.c
@@ -0,0 +1,274 @@
+/* -*- Mode: c; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/* Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: David Vitek
+ *
+ * Dump function addresses using Microsoft debug symbols.  This works
+ * on PDB files.  Note that this program will download symbols to
+ * c:\websymbols without asking.
+ */
+
+#define WIN32_LEAN_AND_MEAN
+#define _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_DEPRECATE
+
+#include 
+#include 
+#include    // for _strdup
+
+#include 
+#include 
+
+// Unfortunately, there is no versioning info in dbghelp.h so I can
+// tell whether it has an old-style (circa VC7.1) IMAGEHLP_MODULE64
+// struct, with only a few fields, or a new-style (circa VC8)
+// IMAGEHLP_MODULE64, with lots of fields.  These fields are just used
+// for debugging, so it's fine to just assume the smaller struct, but
+// for most people, using a modern MSVC, the full struct is available.
+// If you are one of those people and would like this extra debugging
+// info, you can uncomment the line below.
+//#define VC8_OR_ABOVE
+
+#define SEARCH_CAP (1024*1024)
+#define WEBSYM "SRV*c:\\websymbols*http://msdl.microsoft.com/download/symbols"
+
+typedef struct {
+  char *name;
+  ULONG64 addr;
+  ULONG flags;
+} SYM;
+
+typedef struct {
+  ULONG64 module_base;
+  SYM *syms;
+  DWORD syms_len;
+  DWORD syms_cap;
+} SYM_CONTEXT;
+
+static int sym_cmp(const void *_s1, const void *_s2) {
+  const SYM *s1 = (const SYM *)_s1;
+  const SYM *s2 = (const SYM *)_s2;
+
+  if (s1->addr < s2->addr)
+    return -1;
+  if (s1->addr > s2->addr)
+    return 1;
+  return 0;
+}
+
+static BOOL CALLBACK EnumSymProc(PSYMBOL_INFO symbol_info,
+                                 ULONG symbol_size,
+                                 PVOID user_context) {
+  SYM_CONTEXT *ctx = (SYM_CONTEXT*)user_context;
+  if (symbol_info->Address < ctx->module_base ||
+      (symbol_info->Flags & SYMFLAG_TLSREL)) {
+    return TRUE;
+  }
+  if (ctx->syms_len == ctx->syms_cap) {
+    if (!ctx->syms_cap)
+      ctx->syms_cap++;
+    ctx->syms_cap *= 2;
+    ctx->syms = realloc(ctx->syms, sizeof(ctx->syms[0]) * ctx->syms_cap);
+  }
+  ctx->syms[ctx->syms_len].name = _strdup(symbol_info->Name);
+  ctx->syms[ctx->syms_len].addr = symbol_info->Address;
+  ctx->syms[ctx->syms_len].flags = symbol_info->Flags;
+  ctx->syms_len++;
+  return TRUE;
+}
+
+static void MaybePrint(const char* var, const char* description) {
+  if (var[0])
+    printf("%s: %s\n", description, var);
+}
+
+static void PrintAvailability(BOOL var, const char *description) {
+  printf("%s: %s\n", description, (var ? "Available" : "Not available"));
+}
+
+static void ShowSymbolInfo(HANDLE process, ULONG64 module_base) {
+  /* Get module information. */
+  IMAGEHLP_MODULE64 module_info;
+  BOOL getmoduleinfo_rv;
+  printf("Load Address: %I64x\n", module_base);
+  memset(&module_info, 0, sizeof(module_info));
+  module_info.SizeOfStruct = sizeof(module_info);
+  getmoduleinfo_rv = SymGetModuleInfo64(process, module_base, &module_info);
+  if (!getmoduleinfo_rv)  {
+    printf("Error: SymGetModuleInfo64() failed. Error code: %u\n",
+           GetLastError());
+    return;
+  }
+  /* Display information about symbols, based on kind of symbol. */
+  switch (module_info.SymType)  {
+    case SymNone:
+      printf(("No symbols available for the module.\n"));
+      break;
+    case SymExport:
+      printf(("Loaded symbols: Exports\n"));
+      break;
+    case SymCoff:
+      printf(("Loaded symbols: COFF\n"));
+      break;
+    case SymCv:
+      printf(("Loaded symbols: CodeView\n"));
+      break;
+    case SymSym:
+      printf(("Loaded symbols: SYM\n"));
+      break;
+    case SymVirtual:
+      printf(("Loaded symbols: Virtual\n"));
+      break;
+    case SymPdb:
+      printf(("Loaded symbols: PDB\n"));
+      break;
+    case SymDia:
+      printf(("Loaded symbols: DIA\n"));
+      break;
+    case SymDeferred:
+      printf(("Loaded symbols: Deferred\n"));  /* not actually loaded */
+      break;
+    default:
+      printf(("Loaded symbols: Unknown format.\n"));
+      break;
+  }
+
+  MaybePrint("Image name", module_info.ImageName);
+  MaybePrint("Loaded image name", module_info.LoadedImageName);
+#ifdef VC8_OR_ABOVE   /* TODO(csilvers): figure out how to tell */
+  MaybePrint("PDB file name", module_info.LoadedPdbName);
+  if (module_info.PdbUnmatched || module_info.DbgUnmatched)  {
+    /* This can only happen if the debug information is contained in a
+     * separate file (.DBG or .PDB)
+     */
+    printf(("Warning: Unmatched symbols.\n"));
+  }
+#endif
+
+  /* Contents */
+#ifdef VC8_OR_ABOVE   /* TODO(csilvers): figure out how to tell */
+  PrintAvailability("Line numbers", module_info.LineNumbers);
+  PrintAvailability("Global symbols", module_info.GlobalSymbols);
+  PrintAvailability("Type information", module_info.TypeInfo);
+#endif
+}
+
+void usage() {
+  fprintf(stderr, "usage: nm-pdb [-C|--demangle] \n");
+}
+
+int main(int argc, char *argv[]) {
+  DWORD  error;
+  HANDLE process;
+  ULONG64 module_base;
+  SYM_CONTEXT ctx;
+  int i;
+  char* search;
+  char* filename = NULL;
+  int rv = 0;
+  /* We may add SYMOPT_UNDNAME if --demangle is specified: */
+  DWORD symopts = SYMOPT_DEFERRED_LOADS | SYMOPT_DEBUG;
+
+  for (i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "--demangle") == 0 || strcmp(argv[i], "-C") == 0) {
+      symopts |= SYMOPT_UNDNAME;
+    } else if (strcmp(argv[i], "--help") == 0) {
+      usage();
+      exit(0);
+    } else {
+      break;
+    }
+  }
+  if (i != argc - 1) {
+    usage();
+    exit(1);
+  }
+  filename = argv[i];
+
+  process = GetCurrentProcess();
+
+  if (!SymInitialize(process, NULL, FALSE)) {
+    error = GetLastError();
+    fprintf(stderr, "SymInitialize returned error : %d\n", error);
+    return 1;
+  }
+
+  search = malloc(SEARCH_CAP);
+  if (SymGetSearchPath(process, search, SEARCH_CAP)) {
+    if (strlen(search) + sizeof(";" WEBSYM) > SEARCH_CAP) {
+      fprintf(stderr, "Search path too long\n");
+      SymCleanup(process);
+      return 1;
+    }
+    strcat(search, ";" WEBSYM);
+  } else {
+    error = GetLastError();
+    fprintf(stderr, "SymGetSearchPath returned error : %d\n", error);
+    rv = 1;                   /* An error, but not a fatal one */
+    strcpy(search, WEBSYM);   /* Use a default value */
+  }
+  if (!SymSetSearchPath(process, search)) {
+    error = GetLastError();
+    fprintf(stderr, "SymSetSearchPath returned error : %d\n", error);
+    rv = 1;                   /* An error, but not a fatal one */
+ }
+
+  SymSetOptions(symopts);
+  module_base = SymLoadModuleEx(process, NULL, filename, NULL, 0, 0, NULL, 0);
+  if (!module_base) {
+    /* SymLoadModuleEx failed */
+    error = GetLastError();
+    fprintf(stderr, "SymLoadModuleEx returned error : %d for %s\n",
+            error, filename);
+    SymCleanup(process);
+    return 1;
+  }
+
+  ShowSymbolInfo(process, module_base);
+
+  memset(&ctx, 0, sizeof(ctx));
+  ctx.module_base = module_base;
+  if (!SymEnumSymbols(process, module_base, NULL, EnumSymProc, &ctx)) {
+    error = GetLastError();
+    fprintf(stderr, "SymEnumSymbols returned error: %d\n", error);
+    rv = 1;
+  } else {
+    DWORD j;
+    qsort(ctx.syms, ctx.syms_len, sizeof(ctx.syms[0]), sym_cmp);
+    for (j = 0; j < ctx.syms_len; j++) {
+      printf("%016I64x X %s\n", ctx.syms[j].addr, ctx.syms[j].name);
+    }
+    /* In a perfect world, maybe we'd clean up ctx's memory? */
+  }
+  SymUnloadModule64(process, module_base);
+  SymCleanup(process);
+  return rv;
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/override_functions.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/override_functions.cc
new file mode 100644
index 000000000..8afb85102
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/override_functions.cc
@@ -0,0 +1,173 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---
+// Author: Mike Belshe
+//
+// To link tcmalloc into a EXE or DLL statically without using the patching
+// facility, we can take a stock libcmt and remove all the allocator functions.
+// When we relink the EXE/DLL with the modified libcmt and tcmalloc, a few
+// functions are missing.  This file contains the additional overrides which
+// are required in the VS2005 libcmt in order to link the modified libcmt.
+//
+// See also
+// http://groups.google.com/group/google-perftools/browse_thread/thread/41cd3710af85e57b
+
+#include 
+
+#ifndef _WIN32
+# error You should only be including this file in a windows environment!
+#endif
+
+#ifndef WIN32_OVERRIDE_ALLOCATORS
+# error This file is intended for use when overriding allocators
+#endif
+
+#include "tcmalloc.cc"
+
+extern "C" {
+
+void* _malloc_base(size_t size) {
+  return malloc(size);
+}
+
+void _free_base(void* p) {
+  free(p);
+}
+
+void* _calloc_base(size_t n, size_t size) {
+  return calloc(n, size);
+}
+
+void* _recalloc(void* old_ptr, size_t n, size_t size) {
+  // Ensure that (n * size) does not overflow
+  if (!(n == 0 || (std::numeric_limits::max)() / n >= size)) {
+    errno = ENOMEM;
+    return NULL;
+  }
+
+  const size_t old_size = tc_malloc_size(old_ptr);
+  const size_t new_size = n * size;
+
+  void* new_ptr = realloc(old_ptr, new_size);
+
+  // If the reallocation succeeded and the new block is larger, zero-fill the
+  // new bytes:
+  if (new_ptr != NULL && new_size > old_size) {
+    memset(static_cast(new_ptr) + old_size, 0, tc_nallocx(new_size, 0) - old_size);
+  }
+
+  return new_ptr;
+}
+
+void* _calloc_impl(size_t n, size_t size) {
+  return calloc(n, size);
+}
+
+size_t _msize(void* p) {
+  return MallocExtension::instance()->GetAllocatedSize(p);
+}
+
+HANDLE __acrt_heap = nullptr;
+
+bool __acrt_initialize_heap() {
+  new TCMallocGuard();
+  return true;
+}
+
+bool __acrt_uninitialize_heap(bool) {
+  return true;
+}
+
+intptr_t _get_heap_handle() {
+  return 0;
+}
+
+HANDLE __acrt_getheap() {
+  return __acrt_heap;
+}
+
+// The CRT heap initialization stub.
+int _heap_init() {
+  // We intentionally leak this object.  It lasts for the process
+  // lifetime.  Trying to teardown at _heap_term() is so late that
+  // you can't do anything useful anyway.
+  new TCMallocGuard();
+  return 1;
+}
+
+// The CRT heap cleanup stub.
+void _heap_term() {
+}
+
+// We set this to 1 because part of the CRT uses a check of _crtheap != 0
+// to test whether the CRT has been initialized.  Once we've ripped out
+// the allocators from libcmt, we need to provide this definition so that
+// the rest of the CRT is still usable.
+void* _crtheap = reinterpret_cast(1);
+
+int _set_new_mode(int flag) {
+  return tc_set_new_mode(flag);
+}
+
+int _query_new_mode() {
+  return tc_query_new_mode();
+}
+
+}  // extern "C"
+
+#ifndef NDEBUG
+#undef malloc
+#undef free
+#undef calloc
+int _CrtDbgReport(int, const char*, int, const char*, const char*, ...) {
+  return 0;
+}
+
+int _CrtDbgReportW(int, const wchar_t*, int, const wchar_t*, const wchar_t*, ...) {
+  return 0;
+}
+
+int _CrtSetReportMode(int, int) {
+  return 0;
+}
+
+extern "C" void* _malloc_dbg(size_t size, int , const char*, int) {
+  return malloc(size);
+}
+
+extern "C" void _free_dbg(void* ptr, int) {
+  free(ptr);
+}
+
+extern "C" void* _calloc_dbg(size_t n, size_t size, int, const char*, int) {
+  return calloc(n, size);
+}
+#endif  // NDEBUG
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/patch_functions.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/patch_functions.cc
new file mode 100644
index 000000000..a2d0a0365
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/patch_functions.cc
@@ -0,0 +1,1098 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---
+// Author: Craig Silverstein
+//
+// The main purpose of this file is to patch the libc allocation
+// routines (malloc and friends, but also _msize and other
+// windows-specific libc-style routines).  However, we also patch
+// windows routines to do accounting.  We do better at the former than
+// the latter.  Here are some comments from Paul Pluzhnikov about what
+// it might take to do a really good job patching windows routines to
+// keep track of memory usage:
+//
+// "You should intercept at least the following:
+//     HeapCreate HeapDestroy HeapAlloc HeapReAlloc HeapFree
+//     RtlCreateHeap RtlDestroyHeap RtlAllocateHeap RtlFreeHeap
+//     malloc calloc realloc free
+//     malloc_dbg calloc_dbg realloc_dbg free_dbg
+// Some of these call the other ones (but not always), sometimes
+// recursively (i.e. HeapCreate may call HeapAlloc on a different
+// heap, IIRC)."
+//
+// Since Paul didn't mention VirtualAllocEx, he may not have even been
+// considering all the mmap-like functions that windows has (or he may
+// just be ignoring it because he's seen we already patch it).  Of the
+// above, we do not patch the *_dbg functions, and of the windows
+// functions, we only patch HeapAlloc and HeapFree.
+//
+// The *_dbg functions come into play with /MDd, /MTd, and /MLd,
+// probably.  It may be ok to just turn off tcmalloc in those cases --
+// if the user wants the windows debug malloc, they probably don't
+// want tcmalloc!  We should also test with all of /MD, /MT, and /ML,
+// which we're not currently doing.
+
+// TODO(csilvers): try to do better here?  Paul does conclude:
+//                 "Keeping track of all of this was a nightmare."
+
+#ifndef _WIN32
+# error You should only be including windows/patch_functions.cc in a windows environment!
+#endif
+
+#include 
+
+#ifdef WIN32_OVERRIDE_ALLOCATORS
+#error This file is intended for patching allocators - use override_functions.cc instead.
+#endif
+
+// We use psapi.  Non-MSVC systems will have to link this in themselves.
+#ifdef _MSC_VER
+#pragma comment(lib, "Psapi.lib")
+#endif
+
+// Make sure we always use the 'old' names of the psapi functions.
+#ifndef PSAPI_VERSION
+#define PSAPI_VERSION 1
+#endif
+
+#include 
+#include 
+#include        // for _msize and _expand
+#include         // for EnumProcessModules, GetModuleInformation, etc.
+#include 
+#include 
+#include 
+#include 
+#include "base/spinlock.h"
+#include "gperftools/malloc_hook.h"
+#include "malloc_hook-inl.h"
+#include "preamble_patcher.h"
+
+// The maximum number of modules we allow to be in one executable
+const int kMaxModules = 8182;
+
+// These are hard-coded, unfortunately. :-( They are also probably
+// compiler specific.  See get_mangled_names.cc, in this directory,
+// for instructions on how to update these names for your compiler.
+#ifdef _WIN64
+const char kMangledNew[] = "??2@YAPEAX_K@Z";
+const char kMangledNewArray[] = "??_U@YAPEAX_K@Z";
+const char kMangledDelete[] = "??3@YAXPEAX@Z";
+const char kMangledDeleteArray[] = "??_V@YAXPEAX@Z";
+const char kMangledNewNothrow[] = "??2@YAPEAX_KAEBUnothrow_t@std@@@Z";
+const char kMangledNewArrayNothrow[] = "??_U@YAPEAX_KAEBUnothrow_t@std@@@Z";
+const char kMangledDeleteNothrow[] = "??3@YAXPEAXAEBUnothrow_t@std@@@Z";
+const char kMangledDeleteArrayNothrow[] = "??_V@YAXPEAXAEBUnothrow_t@std@@@Z";
+#else
+const char kMangledNew[] = "??2@YAPAXI@Z";
+const char kMangledNewArray[] = "??_U@YAPAXI@Z";
+const char kMangledDelete[] = "??3@YAXPAX@Z";
+const char kMangledDeleteArray[] = "??_V@YAXPAX@Z";
+const char kMangledNewNothrow[] = "??2@YAPAXIABUnothrow_t@std@@@Z";
+const char kMangledNewArrayNothrow[] = "??_U@YAPAXIABUnothrow_t@std@@@Z";
+const char kMangledDeleteNothrow[] = "??3@YAXPAXABUnothrow_t@std@@@Z";
+const char kMangledDeleteArrayNothrow[] = "??_V@YAXPAXABUnothrow_t@std@@@Z";
+#endif
+
+// This is an unused but exported symbol that we can use to tell the
+// MSVC linker to bring in libtcmalloc, via the /INCLUDE linker flag.
+// Without this, the linker will likely decide that libtcmalloc.dll
+// doesn't add anything to the executable (since it does all its work
+// through patching, which the linker can't see), and ignore it
+// entirely.  (The name 'tcmalloc' is already reserved for a
+// namespace.  I'd rather export a variable named "_tcmalloc", but I
+// couldn't figure out how to get that to work.  This function exports
+// the symbol "__tcmalloc".)
+extern "C" PERFTOOLS_DLL_DECL void _tcmalloc();
+void _tcmalloc() { }
+
+// This is the version needed for windows x64, which has a different
+// decoration scheme which doesn't auto-add a leading underscore.
+extern "C" PERFTOOLS_DLL_DECL void __tcmalloc();
+void __tcmalloc() { }
+
+namespace {    // most everything here is in an unnamed namespace
+
+typedef void (*GenericFnPtr)();
+
+using sidestep::PreamblePatcher;
+
+struct ModuleEntryCopy;   // defined below
+
+// These functions are how we override the memory allocation
+// functions, just like tcmalloc.cc and malloc_hook.cc do.
+
+// This is information about the routines we're patching, for a given
+// module that implements libc memory routines.  A single executable
+// can have several libc implementations running about (in different
+// .dll's), and we need to patch/unpatch them all.  This defines
+// everything except the new functions we're patching in, which
+// are defined in LibcFunctions, below.
+class LibcInfo {
+ public:
+  LibcInfo() {
+    memset(this, 0, sizeof(*this));  // easiest way to initialize the array
+  }
+
+  bool patched() const { return is_valid(); }
+  void set_is_valid(bool b) { is_valid_ = b; }
+  // According to http://msdn.microsoft.com/en-us/library/ms684229(VS.85).aspx:
+  // "The load address of a module (lpBaseOfDll) is the same as the HMODULE
+  // value."
+  HMODULE hmodule() const {
+    return reinterpret_cast(const_cast(module_base_address_));
+  }
+
+  // Populates all the windows_fn_[] vars based on our module info.
+  // Returns false if windows_fn_ is all NULL's, because there's
+  // nothing to patch.  Also populates the rest of the module_entry
+  // info, such as the module's name.
+  bool PopulateWindowsFn(const ModuleEntryCopy& module_entry);
+
+ protected:
+  void CopyFrom(const LibcInfo& that) {
+    if (this == &that)
+      return;
+    this->is_valid_ = that.is_valid_;
+    memcpy(this->windows_fn_, that.windows_fn_, sizeof(windows_fn_));
+    this->module_base_address_ = that.module_base_address_;
+    this->module_base_size_ = that.module_base_size_;
+  }
+
+  enum {
+    kMalloc, kFree, kRealloc, kCalloc,
+    kNew, kNewArray, kDelete, kDeleteArray,
+    kNewNothrow, kNewArrayNothrow, kDeleteNothrow, kDeleteArrayNothrow,
+    // These are windows-only functions from malloc.h
+    k_Msize, k_Expand,
+    // A MS CRT "internal" function, implemented using _calloc_impl
+    k_CallocCrt,
+    // Underlying deallocation functions called by CRT internal functions or operator delete
+    kFreeBase, kFreeDbg,
+    kNumFunctions
+  };
+
+  // I'd like to put these together in a struct (perhaps in the
+  // subclass, so we can put in perftools_fn_ as well), but vc8 seems
+  // to have a bug where it doesn't initialize the struct properly if
+  // we try to take the address of a function that's not yet loaded
+  // from a dll, as is the common case for static_fn_.  So we need
+  // each to be in its own array. :-(
+  static const char* const function_name_[kNumFunctions];
+
+  // This function is only used when statically linking the binary.
+  // In that case, loading malloc/etc from the dll (via
+  // PatchOneModule) won't work, since there are no dlls.  Instead,
+  // you just want to be taking the address of malloc/etc directly.
+  // In the common, non-static-link case, these pointers will all be
+  // NULL, since this initializer runs before msvcrt.dll is loaded.
+  static const GenericFnPtr static_fn_[kNumFunctions];
+
+  // This is the address of the function we are going to patch
+  // (malloc, etc).  Other info about the function is in the
+  // patch-specific subclasses, below.
+  GenericFnPtr windows_fn_[kNumFunctions];
+
+  // This is set to true when this structure is initialized (because
+  // we're patching a new library) and set to false when it's
+  // uninitialized (because we've freed that library).
+  bool is_valid_;
+
+  const void *module_base_address_;
+  size_t module_base_size_;
+
+ public:
+  // These shouldn't have to be public, since only subclasses of
+  // LibcInfo need it, but they do.  Maybe something to do with
+  // templates.  Shrug.  I hide them down here so users won't see
+  // them. :-)  (OK, I also need to define ctrgProcAddress late.)
+  bool is_valid() const { return is_valid_; }
+  GenericFnPtr windows_fn(int ifunction) const {
+    return windows_fn_[ifunction];
+  }
+  // These three are needed by ModuleEntryCopy.
+  static const int ctrgProcAddress = kNumFunctions;
+  static GenericFnPtr static_fn(int ifunction) {
+    return static_fn_[ifunction];
+  }
+  static const char* const function_name(int ifunction) {
+    return function_name_[ifunction];
+  }
+};
+
+// Template trickiness: logically, a LibcInfo would include
+// Windows_malloc_, origstub_malloc_, and Perftools_malloc_: for a
+// given module, these three go together.  And in fact,
+// Perftools_malloc_ may need to call origstub_malloc_, which means we
+// either need to change Perftools_malloc_ to take origstub_malloc_ as
+// an argument -- unfortunately impossible since it needs to keep the
+// same API as normal malloc -- or we need to write a different
+// version of Perftools_malloc_ for each LibcInfo instance we create.
+// We choose the second route, and use templates to implement it (we
+// could have also used macros).  So to get multiple versions
+// of the struct, we say "struct<1> var1; struct<2> var2;".  The price
+// we pay is some code duplication, and more annoying, each instance
+// of this var is a separate type.
+template class LibcInfoWithPatchFunctions : public LibcInfo {
+ public:
+  // me_info should have had PopulateWindowsFn() called on it, so the
+  // module_* vars and windows_fn_ are set up.
+  bool Patch(const LibcInfo& me_info);
+  void Unpatch();
+
+ private:
+  // This holds the original function contents after we patch the function.
+  // This has to be defined static in the subclass, because the perftools_fns
+  // reference origstub_fn_.
+  static GenericFnPtr origstub_fn_[kNumFunctions];
+
+  // This is the function we want to patch in
+  static const GenericFnPtr perftools_fn_[kNumFunctions];
+
+  static void* Perftools_malloc(size_t size) __THROW;
+  static void Perftools_free(void* ptr) __THROW;
+  static void Perftools_free_base(void* ptr) __THROW;
+  static void Perftools_free_dbg(void* ptr, int block_use) __THROW;
+  static void* Perftools_realloc(void* ptr, size_t size) __THROW;
+  static void* Perftools_calloc(size_t nmemb, size_t size) __THROW;
+  static void* Perftools_new(size_t size);
+  static void* Perftools_newarray(size_t size);
+  static void Perftools_delete(void *ptr);
+  static void Perftools_deletearray(void *ptr);
+  static void* Perftools_new_nothrow(size_t size,
+                                     const std::nothrow_t&) __THROW;
+  static void* Perftools_newarray_nothrow(size_t size,
+                                          const std::nothrow_t&) __THROW;
+  static void Perftools_delete_nothrow(void *ptr,
+                                       const std::nothrow_t&) __THROW;
+  static void Perftools_deletearray_nothrow(void *ptr,
+                                            const std::nothrow_t&) __THROW;
+  static size_t Perftools__msize(void *ptr) __THROW;
+  static void* Perftools__expand(void *ptr, size_t size) __THROW;
+  // malloc.h also defines these functions:
+  //   _aligned_malloc, _aligned_free,
+  //   _recalloc, _aligned_offset_malloc, _aligned_realloc, _aligned_recalloc
+  //   _aligned_offset_realloc, _aligned_offset_recalloc, _malloca, _freea
+  // But they seem pretty obscure, and I'm fine not overriding them for now.
+  // It may be they all call into malloc/free anyway.
+};
+
+// This is a subset of MODDULEENTRY32, that we need for patching.
+struct ModuleEntryCopy {
+  LPVOID  modBaseAddr;     // the same as hmodule
+  DWORD   modBaseSize;
+  // This is not part of MODDULEENTRY32, but is needed to avoid making
+  // windows syscalls while we're holding patch_all_modules_lock (see
+  // lock-inversion comments at patch_all_modules_lock definition, below).
+  GenericFnPtr rgProcAddresses[LibcInfo::ctrgProcAddress];
+
+  ModuleEntryCopy() {
+    modBaseAddr = NULL;
+    modBaseSize = 0;
+    for (int i = 0; i < sizeof(rgProcAddresses)/sizeof(*rgProcAddresses); i++)
+      rgProcAddresses[i] = LibcInfo::static_fn(i);
+  }
+  ModuleEntryCopy(const MODULEINFO& mi) {
+    this->modBaseAddr = mi.lpBaseOfDll;
+    this->modBaseSize = mi.SizeOfImage;
+    LPVOID modEndAddr = (char*)mi.lpBaseOfDll + mi.SizeOfImage;
+    for (int i = 0; i < sizeof(rgProcAddresses)/sizeof(*rgProcAddresses); i++) {
+      FARPROC target = ::GetProcAddress(
+          reinterpret_cast(mi.lpBaseOfDll),
+          LibcInfo::function_name(i));
+      // Sometimes a DLL forwards a function to a function in another
+      // DLL.  We don't want to patch those forwarded functions --
+      // they'll get patched when the other DLL is processed.
+      if (target >= modBaseAddr && target < modEndAddr)
+        rgProcAddresses[i] = (GenericFnPtr)target;
+      else
+        rgProcAddresses[i] = (GenericFnPtr)NULL;
+    }
+  }
+};
+
+// This class is easier because there's only one of them.
+class WindowsInfo {
+ public:
+  void Patch();
+  void Unpatch();
+
+ private:
+  // TODO(csilvers): should we be patching GlobalAlloc/LocalAlloc instead,
+  //                 for pre-XP systems?
+  enum {
+    kHeapAlloc, kHeapFree, kVirtualAllocEx, kVirtualFreeEx,
+    kMapViewOfFileEx, kUnmapViewOfFile, kLoadLibraryExW, kFreeLibrary,
+    kNumFunctions
+  };
+
+  struct FunctionInfo {
+    const char* const name;          // name of fn in a module (eg "malloc")
+    GenericFnPtr windows_fn;         // the fn whose name we call (&malloc)
+    GenericFnPtr origstub_fn;        // original fn contents after we patch
+    const GenericFnPtr perftools_fn; // fn we want to patch in
+  };
+
+  static FunctionInfo function_info_[kNumFunctions];
+
+  // A Windows-API equivalent of malloc and free
+  static LPVOID WINAPI Perftools_HeapAlloc(HANDLE hHeap, DWORD dwFlags,
+                                           DWORD_PTR dwBytes);
+  static BOOL WINAPI Perftools_HeapFree(HANDLE hHeap, DWORD dwFlags,
+                                        LPVOID lpMem);
+  // A Windows-API equivalent of mmap and munmap, for "anonymous regions"
+  static LPVOID WINAPI Perftools_VirtualAllocEx(HANDLE process, LPVOID address,
+                                                SIZE_T size, DWORD type,
+                                                DWORD protect);
+  static BOOL WINAPI Perftools_VirtualFreeEx(HANDLE process, LPVOID address,
+                                             SIZE_T size, DWORD type);
+  // A Windows-API equivalent of mmap and munmap, for actual files
+  static LPVOID WINAPI Perftools_MapViewOfFileEx(HANDLE hFileMappingObject,
+                                                 DWORD dwDesiredAccess,
+                                                 DWORD dwFileOffsetHigh,
+                                                 DWORD dwFileOffsetLow,
+                                                 SIZE_T dwNumberOfBytesToMap,
+                                                 LPVOID lpBaseAddress);
+  static BOOL WINAPI Perftools_UnmapViewOfFile(LPCVOID lpBaseAddress);
+  // We don't need the other 3 variants because they all call this one. */
+  static HMODULE WINAPI Perftools_LoadLibraryExW(LPCWSTR lpFileName,
+                                                 HANDLE hFile,
+                                                 DWORD dwFlags);
+  static BOOL WINAPI Perftools_FreeLibrary(HMODULE hLibModule);
+};
+
+// If you run out, just add a few more to the array.  You'll also need
+// to update the switch statement in PatchOneModule(), and the list in
+// UnpatchWindowsFunctions().
+// main_executable and main_executable_windows are two windows into
+// the same executable.  One is responsible for patching the libc
+// routines that live in the main executable (if any) to use tcmalloc;
+// the other is responsible for patching the windows routines like
+// HeapAlloc/etc to use tcmalloc.
+static LibcInfoWithPatchFunctions<0> main_executable;
+static LibcInfoWithPatchFunctions<1> libc1;
+static LibcInfoWithPatchFunctions<2> libc2;
+static LibcInfoWithPatchFunctions<3> libc3;
+static LibcInfoWithPatchFunctions<4> libc4;
+static LibcInfoWithPatchFunctions<5> libc5;
+static LibcInfoWithPatchFunctions<6> libc6;
+static LibcInfoWithPatchFunctions<7> libc7;
+static LibcInfoWithPatchFunctions<8> libc8;
+static LibcInfo* g_module_libcs[] = {
+  &libc1, &libc2, &libc3, &libc4, &libc5, &libc6, &libc7, &libc8
+};
+static WindowsInfo main_executable_windows;
+
+const char* const LibcInfo::function_name_[] = {
+  "malloc", "free", "realloc", "calloc",
+  kMangledNew, kMangledNewArray, kMangledDelete, kMangledDeleteArray,
+  // Ideally we should patch the nothrow versions of new/delete, but
+  // at least in msvcrt, nothrow-new machine-code is of a type we
+  // can't patch.  Since these are relatively rare, I'm hoping it's ok
+  // not to patch them.  (NULL name turns off patching.)
+  NULL,  // kMangledNewNothrow,
+  NULL,  // kMangledNewArrayNothrow,
+  NULL,  // kMangledDeleteNothrow,
+  NULL,  // kMangledDeleteArrayNothrow,
+  "_msize", "_expand", "_calloc_crt", "_free_base", "_free_dbg"
+};
+
+// For mingw, I can't patch the new/delete here, because the
+// instructions are too small to patch.  Luckily, they're so small
+// because all they do is call into malloc/free, so they still end up
+// calling tcmalloc routines, and we don't actually lose anything
+// (except maybe some stacktrace goodness) by not patching.
+const GenericFnPtr LibcInfo::static_fn_[] = {
+  (GenericFnPtr)&::malloc,
+  (GenericFnPtr)&::free,
+  (GenericFnPtr)&::realloc,
+  (GenericFnPtr)&::calloc,
+#ifdef __MINGW32__
+  NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+#else
+  (GenericFnPtr)(void*(*)(size_t))&::operator new,
+  (GenericFnPtr)(void*(*)(size_t))&::operator new[],
+  (GenericFnPtr)(void(*)(void*))&::operator delete,
+  (GenericFnPtr)(void(*)(void*))&::operator delete[],
+  (GenericFnPtr)
+  (void*(*)(size_t, struct std::nothrow_t const &))&::operator new,
+  (GenericFnPtr)
+  (void*(*)(size_t, struct std::nothrow_t const &))&::operator new[],
+  (GenericFnPtr)
+  (void(*)(void*, struct std::nothrow_t const &))&::operator delete,
+  (GenericFnPtr)
+  (void(*)(void*, struct std::nothrow_t const &))&::operator delete[],
+#endif
+  (GenericFnPtr)&::_msize,
+  (GenericFnPtr)&::_expand,
+  (GenericFnPtr)&::calloc,
+  (GenericFnPtr)&::free,
+  (GenericFnPtr)&::free
+};
+
+template GenericFnPtr LibcInfoWithPatchFunctions::origstub_fn_[] = {
+  // This will get filled in at run-time, as patching is done.
+};
+
+template
+const GenericFnPtr LibcInfoWithPatchFunctions::perftools_fn_[] = {
+  (GenericFnPtr)&Perftools_malloc,
+  (GenericFnPtr)&Perftools_free,
+  (GenericFnPtr)&Perftools_realloc,
+  (GenericFnPtr)&Perftools_calloc,
+  (GenericFnPtr)&Perftools_new,
+  (GenericFnPtr)&Perftools_newarray,
+  (GenericFnPtr)&Perftools_delete,
+  (GenericFnPtr)&Perftools_deletearray,
+  (GenericFnPtr)&Perftools_new_nothrow,
+  (GenericFnPtr)&Perftools_newarray_nothrow,
+  (GenericFnPtr)&Perftools_delete_nothrow,
+  (GenericFnPtr)&Perftools_deletearray_nothrow,
+  (GenericFnPtr)&Perftools__msize,
+  (GenericFnPtr)&Perftools__expand,
+  (GenericFnPtr)&Perftools_calloc,
+  (GenericFnPtr)&Perftools_free_base,
+  (GenericFnPtr)&Perftools_free_dbg
+};
+
+/*static*/ WindowsInfo::FunctionInfo WindowsInfo::function_info_[] = {
+  { "HeapAlloc", NULL, NULL, (GenericFnPtr)&Perftools_HeapAlloc },
+  { "HeapFree", NULL, NULL, (GenericFnPtr)&Perftools_HeapFree },
+  { "VirtualAllocEx", NULL, NULL, (GenericFnPtr)&Perftools_VirtualAllocEx },
+  { "VirtualFreeEx", NULL, NULL, (GenericFnPtr)&Perftools_VirtualFreeEx },
+  { "MapViewOfFileEx", NULL, NULL, (GenericFnPtr)&Perftools_MapViewOfFileEx },
+  { "UnmapViewOfFile", NULL, NULL, (GenericFnPtr)&Perftools_UnmapViewOfFile },
+  { "LoadLibraryExW", NULL, NULL, (GenericFnPtr)&Perftools_LoadLibraryExW },
+  { "FreeLibrary", NULL, NULL, (GenericFnPtr)&Perftools_FreeLibrary },
+};
+
+bool LibcInfo::PopulateWindowsFn(const ModuleEntryCopy& module_entry) {
+  // First, store the location of the function to patch before
+  // patching it.  If none of these functions are found in the module,
+  // then this module has no libc in it, and we just return false.
+  for (int i = 0; i < kNumFunctions; i++) {
+    if (!function_name_[i])     // we can turn off patching by unsetting name
+      continue;
+    // The ::GetProcAddress calls were done in the ModuleEntryCopy
+    // constructor, so we don't have to make any windows calls here.
+    const GenericFnPtr fn = module_entry.rgProcAddresses[i];
+    if (fn) {
+      windows_fn_[i] = PreamblePatcher::ResolveTarget(fn);
+    }
+  }
+
+  // Some modules use the same function pointer for new and new[].  If
+  // we find that, set one of the pointers to NULL so we don't double-
+  // patch.  Same may happen with new and nothrow-new, or even new[]
+  // and nothrow-new.  It's easiest just to check each fn-ptr against
+  // every other.
+  for (int i = 0; i < kNumFunctions; i++) {
+    for (int j = i+1; j < kNumFunctions; j++) {
+      if (windows_fn_[i] == windows_fn_[j]) {
+        // We NULL the later one (j), so as to minimize the chances we
+        // NULL kFree and kRealloc.  See comments below.  This is fragile!
+        windows_fn_[j] = NULL;
+      }
+    }
+  }
+
+  // There's always a chance that our module uses the same function
+  // as another module that we've already loaded.  In that case, we
+  // need to set our windows_fn to NULL, to avoid double-patching.
+  for (int ifn = 0; ifn < kNumFunctions; ifn++) {
+    for (int imod = 0;
+         imod < sizeof(g_module_libcs)/sizeof(*g_module_libcs);  imod++) {
+      if (g_module_libcs[imod]->is_valid() &&
+          this->windows_fn(ifn) == g_module_libcs[imod]->windows_fn(ifn)) {
+        windows_fn_[ifn] = NULL;
+      }
+    }
+  }
+
+  bool found_non_null = false;
+  for (int i = 0; i < kNumFunctions; i++) {
+    if (windows_fn_[i])
+      found_non_null = true;
+  }
+  if (!found_non_null)
+    return false;
+
+  // It's important we didn't NULL out windows_fn_[kFree] or [kRealloc].
+  // The reason is, if those are NULL-ed out, we'll never patch them
+  // and thus never get an origstub_fn_ value for them, and when we
+  // try to call origstub_fn_[kFree/kRealloc] in Perftools_free and
+  // Perftools_realloc, below, it will fail.  We could work around
+  // that by adding a pointer from one patch-unit to the other, but we
+  // haven't needed to yet.
+  CHECK(windows_fn_[kFree]);
+  CHECK(windows_fn_[kRealloc]);
+
+  // OK, we successfully populated.  Let's store our member information.
+  module_base_address_ = module_entry.modBaseAddr;
+  module_base_size_ = module_entry.modBaseSize;
+  return true;
+}
+
+template
+bool LibcInfoWithPatchFunctions::Patch(const LibcInfo& me_info) {
+  CopyFrom(me_info);   // copies the module_entry and the windows_fn_ array
+  for (int i = 0; i < kNumFunctions; i++) {
+    if (windows_fn_[i] && windows_fn_[i] != perftools_fn_[i]) {
+      // if origstub_fn_ is not NULL, it's left around from a previous
+      // patch.  We need to set it to NULL for the new Patch call.
+      //
+      // Note that origstub_fn_ was logically freed by
+      // PreamblePatcher::Unpatch, so we don't have to do anything
+      // about it.
+      origstub_fn_[i] = NULL;   // Patch() will fill this in
+      CHECK_EQ(sidestep::SIDESTEP_SUCCESS,
+               PreamblePatcher::Patch(windows_fn_[i], perftools_fn_[i],
+                                      &origstub_fn_[i]));
+    }
+  }
+  set_is_valid(true);
+  return true;
+}
+
+template
+void LibcInfoWithPatchFunctions::Unpatch() {
+  // We have to cast our GenericFnPtrs to void* for unpatch.  This is
+  // contra the C++ spec; we use C-style casts to empahsize that.
+  for (int i = 0; i < kNumFunctions; i++) {
+    if (windows_fn_[i])
+      CHECK_EQ(sidestep::SIDESTEP_SUCCESS,
+               PreamblePatcher::Unpatch((void*)windows_fn_[i],
+                                        (void*)perftools_fn_[i],
+                                        (void*)origstub_fn_[i]));
+  }
+  set_is_valid(false);
+}
+
+void WindowsInfo::Patch() {
+  HMODULE hkernel32 = ::GetModuleHandleA("kernel32");
+  CHECK_NE(hkernel32, NULL);
+
+  // Unlike for libc, we know these exist in our module, so we can get
+  // and patch at the same time.
+  for (int i = 0; i < kNumFunctions; i++) {
+    function_info_[i].windows_fn = (GenericFnPtr)
+        ::GetProcAddress(hkernel32, function_info_[i].name);
+    // If origstub_fn is not NULL, it's left around from a previous
+    // patch.  We need to set it to NULL for the new Patch call.
+    // Since we've patched Unpatch() not to delete origstub_fn_ (it
+    // causes problems in some contexts, though obviously not this
+    // one), we should delete it now, before setting it to NULL.
+    // NOTE: casting from a function to a pointer is contra the C++
+    //       spec.  It's not safe on IA64, but is on i386.  We use
+    //       a C-style cast here to emphasize this is not legal C++.
+    delete[] (char*)(function_info_[i].origstub_fn);
+    function_info_[i].origstub_fn = NULL;  // Patch() will fill this in
+    CHECK_EQ(sidestep::SIDESTEP_SUCCESS,
+             PreamblePatcher::Patch(function_info_[i].windows_fn,
+                                    function_info_[i].perftools_fn,
+                                    &function_info_[i].origstub_fn));
+  }
+}
+
+void WindowsInfo::Unpatch() {
+  // We have to cast our GenericFnPtrs to void* for unpatch.  This is
+  // contra the C++ spec; we use C-style casts to empahsize that.
+  for (int i = 0; i < kNumFunctions; i++) {
+    CHECK_EQ(sidestep::SIDESTEP_SUCCESS,
+             PreamblePatcher::Unpatch((void*)function_info_[i].windows_fn,
+                                      (void*)function_info_[i].perftools_fn,
+                                      (void*)function_info_[i].origstub_fn));
+  }
+}
+
+// You should hold the patch_all_modules_lock when calling this.
+void PatchOneModuleLocked(const LibcInfo& me_info) {
+  // If we don't already have info on this module, let's add it.  This
+  // is where we're sad that each libcX has a different type, so we
+  // can't use an array; instead, we have to use a switch statement.
+  // Patch() returns false if there were no libc functions in the module.
+  for (int i = 0; i < sizeof(g_module_libcs)/sizeof(*g_module_libcs); i++) {
+    if (!g_module_libcs[i]->is_valid()) {   // found an empty spot to add!
+      switch (i) {
+        case 0: libc1.Patch(me_info); return;
+        case 1: libc2.Patch(me_info); return;
+        case 2: libc3.Patch(me_info); return;
+        case 3: libc4.Patch(me_info); return;
+        case 4: libc5.Patch(me_info); return;
+        case 5: libc6.Patch(me_info); return;
+        case 6: libc7.Patch(me_info); return;
+        case 7: libc8.Patch(me_info); return;
+      }
+    }
+  }
+  printf("PERFTOOLS ERROR: Too many modules containing libc in this executable\n");
+}
+
+void PatchMainExecutableLocked() {
+  if (main_executable.patched())
+    return;    // main executable has already been patched
+  ModuleEntryCopy fake_module_entry;   // make a fake one to pass into Patch()
+  // No need to call PopulateModuleEntryProcAddresses on the main executable.
+  main_executable.PopulateWindowsFn(fake_module_entry);
+  main_executable.Patch(main_executable);
+}
+
+// This lock is subject to a subtle and annoying lock inversion
+// problem: it may interact badly with unknown internal windows locks.
+// In particular, windows may be holding a lock when it calls
+// LoadLibraryExW and FreeLibrary, which we've patched.  We have those
+// routines call PatchAllModules, which acquires this lock.  If we
+// make windows system calls while holding this lock, those system
+// calls may need the internal windows locks that are being held in
+// the call to LoadLibraryExW, resulting in deadlock.  The solution is
+// to be very careful not to call *any* windows routines while holding
+// patch_all_modules_lock, inside PatchAllModules().
+static SpinLock patch_all_modules_lock(SpinLock::LINKER_INITIALIZED);
+
+// last_loaded: The set of modules that were loaded the last time
+// PatchAllModules was called.  This is an optimization for only
+// looking at modules that were added or removed from the last call.
+static std::set *g_last_loaded;
+
+// Iterates over all the modules currently loaded by the executable,
+// according to windows, and makes sure they're all patched.  Most
+// modules will already be in loaded_modules, meaning we have already
+// loaded and either patched them or determined they did not need to
+// be patched.  Others will not, which means we need to patch them
+// (if necessary).  Finally, we have to go through the existing
+// g_module_libcs and see if any of those are *not* in the modules
+// currently loaded by the executable.  If so, we need to invalidate
+// them.  Returns true if we did any work (patching or invalidating),
+// false if we were a noop.  May update loaded_modules as well.
+// NOTE: you must hold the patch_all_modules_lock to access loaded_modules.
+bool PatchAllModules() {
+  std::vector modules;
+  bool made_changes = false;
+
+  const HANDLE hCurrentProcess = GetCurrentProcess();
+  DWORD num_modules = 0;
+  HMODULE hModules[kMaxModules];  // max # of modules we support in one process
+  if (!::EnumProcessModules(hCurrentProcess, hModules, sizeof(hModules),
+                            &num_modules)) {
+    num_modules = 0;
+  }
+  // EnumProcessModules actually set the bytes written into hModules,
+  // so we need to divide to make num_modules actually be a module-count.
+  num_modules /= sizeof(*hModules);
+  if (num_modules >= kMaxModules) {
+    printf("PERFTOOLS ERROR: Too many modules in this executable to try"
+           " to patch them all (if you need to, raise kMaxModules in"
+           " patch_functions.cc).\n");
+    num_modules = kMaxModules;
+  }
+
+  // Now we handle the unpatching of modules we have in g_module_libcs
+  // but that were not found in EnumProcessModules.  We need to
+  // invalidate them.  To speed that up, we store the EnumProcessModules
+  // output in a set.
+  // At the same time, we prepare for the adding of new modules, by
+  // removing from hModules all the modules we know we've already
+  // patched (or decided don't need to be patched).  At the end,
+  // hModules will hold only the modules that we need to consider patching.
+  std::set currently_loaded_modules;
+  {
+    SpinLockHolder h(&patch_all_modules_lock);
+    if (!g_last_loaded)  g_last_loaded = new std::set;
+    // At the end of this loop, currently_loaded_modules contains the
+    // full list of EnumProcessModules, and hModules just the ones we
+    // haven't handled yet.
+    for (int i = 0; i < num_modules; ) {
+      currently_loaded_modules.insert(hModules[i]);
+      if (g_last_loaded->count(hModules[i]) > 0) {
+        hModules[i] = hModules[--num_modules];  // replace element i with tail
+      } else {
+        i++;                                    // keep element i
+      }
+    }
+    // Now we do the unpatching/invalidation.
+    for (int i = 0; i < sizeof(g_module_libcs)/sizeof(*g_module_libcs); i++) {
+      if (g_module_libcs[i]->patched() &&
+          currently_loaded_modules.count(g_module_libcs[i]->hmodule()) == 0) {
+        // Means g_module_libcs[i] is no longer loaded (no me32 matched).
+        // We could call Unpatch() here, but why bother?  The module
+        // has gone away, so nobody is going to call into it anyway.
+        g_module_libcs[i]->set_is_valid(false);
+        made_changes = true;
+      }
+    }
+    // Update the loaded module cache.
+    g_last_loaded->swap(currently_loaded_modules);
+  }
+
+  // Now that we know what modules are new, let's get the info we'll
+  // need to patch them.  Note this *cannot* be done while holding the
+  // lock, since it needs to make windows calls (see the lock-inversion
+  // comments before the definition of patch_all_modules_lock).
+  MODULEINFO mi;
+  for (int i = 0; i < num_modules; i++) {
+    if (::GetModuleInformation(hCurrentProcess, hModules[i], &mi, sizeof(mi)))
+      modules.push_back(ModuleEntryCopy(mi));
+  }
+
+  // Now we can do the patching of new modules.
+  {
+    SpinLockHolder h(&patch_all_modules_lock);
+    for (std::vector::iterator it = modules.begin();
+         it != modules.end(); ++it) {
+      LibcInfo libc_info;
+      if (libc_info.PopulateWindowsFn(*it)) { // true==module has libc routines
+        PatchOneModuleLocked(libc_info);
+        made_changes = true;
+      }
+    }
+
+    // Now that we've dealt with the modules (dlls), update the main
+    // executable.  We do this last because PatchMainExecutableLocked
+    // wants to look at how other modules were patched.
+    if (!main_executable.patched()) {
+      PatchMainExecutableLocked();
+      made_changes = true;
+    }
+  }
+  // TODO(csilvers): for this to be reliable, we need to also take
+  // into account if we *would* have patched any modules had they not
+  // already been loaded.  (That is, made_changes should ignore
+  // g_last_loaded.)
+  return made_changes;
+}
+
+
+}  // end unnamed namespace
+
+// ---------------------------------------------------------------------
+// Now that we've done all the patching machinery, let's actually
+// define the functions we're patching in.  Mostly these are
+// simple wrappers around the do_* routines in tcmalloc.cc.
+//
+// In fact, we #include tcmalloc.cc to get at the tcmalloc internal
+// do_* functions, the better to write our own hook functions.
+// U-G-L-Y, I know.  But the alternatives are, perhaps, worse.  This
+// also lets us define _msize(), _expand(), and other windows-specific
+// functions here, using tcmalloc internals, without polluting
+// tcmalloc.cc.
+// -------------------------------------------------------------------
+
+// TODO(csilvers): refactor tcmalloc.cc into two files, so I can link
+// against the file with do_malloc, and ignore the one with malloc.
+#include "tcmalloc.cc"
+
+template
+void* LibcInfoWithPatchFunctions::Perftools_malloc(size_t size) __THROW {
+  return malloc_fast_path(size);
+}
+
+template
+void LibcInfoWithPatchFunctions::Perftools_free(void* ptr) __THROW {
+  MallocHook::InvokeDeleteHook(ptr);
+  // This calls the windows free if do_free decides ptr was not
+  // allocated by tcmalloc.  Note it calls the origstub_free from
+  // *this* templatized instance of LibcInfo.  See "template
+  // trickiness" above.
+  do_free_with_callback(ptr, (void (*)(void*))origstub_fn_[kFree], false, 0);
+}
+
+template
+void LibcInfoWithPatchFunctions::Perftools_free_base(void* ptr) __THROW{
+  MallocHook::InvokeDeleteHook(ptr);
+  // This calls the windows free if do_free decides ptr was not
+  // allocated by tcmalloc.  Note it calls the origstub_free from
+  // *this* templatized instance of LibcInfo.  See "template
+  // trickiness" above.
+  do_free_with_callback(ptr, (void(*)(void*))origstub_fn_[kFreeBase], false, 0);
+}
+
+template
+void LibcInfoWithPatchFunctions::Perftools_free_dbg(void* ptr, int block_use) __THROW {
+  MallocHook::InvokeDeleteHook(ptr);
+  // The windows _free_dbg is called if ptr isn't owned by tcmalloc.
+  if (MallocExtension::instance()->GetOwnership(ptr) == MallocExtension::kOwned) {
+    do_free(ptr);
+  } else {
+    reinterpret_cast(origstub_fn_[kFreeDbg])(ptr, block_use);
+  }
+}
+
+template
+void* LibcInfoWithPatchFunctions::Perftools_realloc(
+    void* old_ptr, size_t new_size) __THROW {
+  if (old_ptr == NULL) {
+    void* result = do_malloc_or_cpp_alloc(new_size);
+    MallocHook::InvokeNewHook(result, new_size);
+    return result;
+  }
+  if (new_size == 0) {
+    MallocHook::InvokeDeleteHook(old_ptr);
+    do_free_with_callback(old_ptr,
+                          (void (*)(void*))origstub_fn_[kFree], false, 0);
+    return NULL;
+  }
+  return do_realloc_with_callback(
+      old_ptr, new_size,
+      (void (*)(void*))origstub_fn_[kFree],
+      (size_t (*)(const void*))origstub_fn_[k_Msize]);
+}
+
+template
+void* LibcInfoWithPatchFunctions::Perftools_calloc(
+    size_t n, size_t elem_size) __THROW {
+  void* result = do_calloc(n, elem_size);
+  MallocHook::InvokeNewHook(result, n * elem_size);
+  return result;
+}
+
+template
+void* LibcInfoWithPatchFunctions::Perftools_new(size_t size) {
+  return malloc_fast_path(size);
+}
+
+template
+void* LibcInfoWithPatchFunctions::Perftools_newarray(size_t size) {
+  return malloc_fast_path(size);
+}
+
+template
+void LibcInfoWithPatchFunctions::Perftools_delete(void *p) {
+  MallocHook::InvokeDeleteHook(p);
+  do_free_with_callback(p, (void (*)(void*))origstub_fn_[kFree], false, 0);
+}
+
+template
+void LibcInfoWithPatchFunctions::Perftools_deletearray(void *p) {
+  MallocHook::InvokeDeleteHook(p);
+  do_free_with_callback(p, (void (*)(void*))origstub_fn_[kFree], false, 0);
+}
+
+template
+void* LibcInfoWithPatchFunctions::Perftools_new_nothrow(
+    size_t size, const std::nothrow_t&) __THROW {
+  return malloc_fast_path(size);
+}
+
+template
+void* LibcInfoWithPatchFunctions::Perftools_newarray_nothrow(
+    size_t size, const std::nothrow_t&) __THROW {
+  return malloc_fast_path(size);
+}
+
+template
+void LibcInfoWithPatchFunctions::Perftools_delete_nothrow(
+    void *p, const std::nothrow_t&) __THROW {
+  MallocHook::InvokeDeleteHook(p);
+  do_free_with_callback(p, (void (*)(void*))origstub_fn_[kFree], false, 0);
+}
+
+template
+void LibcInfoWithPatchFunctions::Perftools_deletearray_nothrow(
+    void *p, const std::nothrow_t&) __THROW {
+  MallocHook::InvokeDeleteHook(p);
+  do_free_with_callback(p, (void (*)(void*))origstub_fn_[kFree], false, 0);
+}
+
+
+// _msize() lets you figure out how much space is reserved for a
+// pointer, in Windows.  Even if applications don't call it, any DLL
+// with global constructors will call (transitively) something called
+// __dllonexit_lk in order to make sure the destructors get called
+// when the dll unloads.  And that will call msize -- horrible things
+// can ensue if this is not hooked.  Other parts of libc may also call
+// this internally.
+
+template
+size_t LibcInfoWithPatchFunctions::Perftools__msize(void* ptr) __THROW {
+  return GetSizeWithCallback(ptr, (size_t (*)(const void*))origstub_fn_[k_Msize]);
+}
+
+// We need to define this because internal windows functions like to
+// call into it(?).  _expand() is like realloc but doesn't move the
+// pointer.  We punt, which will cause callers to fall back on realloc.
+template
+void* LibcInfoWithPatchFunctions::Perftools__expand(void *ptr,
+                                                       size_t size) __THROW {
+  return NULL;
+}
+
+LPVOID WINAPI WindowsInfo::Perftools_HeapAlloc(HANDLE hHeap, DWORD dwFlags,
+                                               DWORD_PTR dwBytes) {
+  LPVOID result = ((LPVOID (WINAPI *)(HANDLE, DWORD, DWORD_PTR))
+                   function_info_[kHeapAlloc].origstub_fn)(
+                       hHeap, dwFlags, dwBytes);
+  MallocHook::InvokeNewHook(result, dwBytes);
+  return result;
+}
+
+BOOL WINAPI WindowsInfo::Perftools_HeapFree(HANDLE hHeap, DWORD dwFlags,
+                                            LPVOID lpMem) {
+  MallocHook::InvokeDeleteHook(lpMem);
+  return ((BOOL (WINAPI *)(HANDLE, DWORD, LPVOID))
+          function_info_[kHeapFree].origstub_fn)(
+              hHeap, dwFlags, lpMem);
+}
+
+LPVOID WINAPI WindowsInfo::Perftools_VirtualAllocEx(HANDLE process,
+                                                    LPVOID address,
+                                                    SIZE_T size, DWORD type,
+                                                    DWORD protect) {
+  LPVOID result = ((LPVOID (WINAPI *)(HANDLE, LPVOID, SIZE_T, DWORD, DWORD))
+                   function_info_[kVirtualAllocEx].origstub_fn)(
+                       process, address, size, type, protect);
+  // VirtualAllocEx() seems to be the Windows equivalent of mmap()
+  MallocHook::InvokeMmapHook(result, address, size, protect, type, -1, 0);
+  return result;
+}
+
+BOOL WINAPI WindowsInfo::Perftools_VirtualFreeEx(HANDLE process, LPVOID address,
+                                                 SIZE_T size, DWORD type) {
+  MallocHook::InvokeMunmapHook(address, size);
+  return ((BOOL (WINAPI *)(HANDLE, LPVOID, SIZE_T, DWORD))
+          function_info_[kVirtualFreeEx].origstub_fn)(
+              process, address, size, type);
+}
+
+LPVOID WINAPI WindowsInfo::Perftools_MapViewOfFileEx(
+    HANDLE hFileMappingObject, DWORD dwDesiredAccess, DWORD dwFileOffsetHigh,
+    DWORD dwFileOffsetLow, SIZE_T dwNumberOfBytesToMap, LPVOID lpBaseAddress) {
+  // For this function pair, you always deallocate the full block of
+  // data that you allocate, so NewHook/DeleteHook is the right API.
+  LPVOID result = ((LPVOID (WINAPI *)(HANDLE, DWORD, DWORD, DWORD,
+                                      SIZE_T, LPVOID))
+                   function_info_[kMapViewOfFileEx].origstub_fn)(
+                       hFileMappingObject, dwDesiredAccess, dwFileOffsetHigh,
+                       dwFileOffsetLow, dwNumberOfBytesToMap, lpBaseAddress);
+  MallocHook::InvokeNewHook(result, dwNumberOfBytesToMap);
+  return result;
+}
+
+BOOL WINAPI WindowsInfo::Perftools_UnmapViewOfFile(LPCVOID lpBaseAddress) {
+  MallocHook::InvokeDeleteHook(lpBaseAddress);
+  return ((BOOL (WINAPI *)(LPCVOID))
+          function_info_[kUnmapViewOfFile].origstub_fn)(
+              lpBaseAddress);
+}
+
+HMODULE WINAPI WindowsInfo::Perftools_LoadLibraryExW(LPCWSTR lpFileName,
+                                                     HANDLE hFile,
+                                                     DWORD dwFlags) {
+  HMODULE rv;
+  // Check to see if the modules is already loaded, flag 0 gets a
+  // reference if it was loaded.  If it was loaded no need to call
+  // PatchAllModules, just increase the reference count to match
+  // what GetModuleHandleExW does internally inside windows.
+  if (::GetModuleHandleExW(0, lpFileName, &rv)) {
+    return rv;
+  } else {
+    // Not already loaded, so load it.
+    rv = ((HMODULE (WINAPI *)(LPCWSTR, HANDLE, DWORD))
+                  function_info_[kLoadLibraryExW].origstub_fn)(
+                      lpFileName, hFile, dwFlags);
+    // This will patch any newly loaded libraries, if patching needs
+    // to be done.
+    PatchAllModules();
+
+    return rv;
+  }
+}
+
+BOOL WINAPI WindowsInfo::Perftools_FreeLibrary(HMODULE hLibModule) {
+  BOOL rv = ((BOOL (WINAPI *)(HMODULE))
+             function_info_[kFreeLibrary].origstub_fn)(hLibModule);
+
+  // Check to see if the module is still loaded by passing the base
+  // address and seeing if it comes back with the same address.  If it
+  // is the same address it's still loaded, so the FreeLibrary() call
+  // was a noop, and there's no need to redo the patching.
+  HMODULE owner = NULL;
+  BOOL result = ::GetModuleHandleExW(
+      (GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
+       GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT),
+      (LPCWSTR)hLibModule,
+      &owner);
+  if (result && owner == hLibModule)
+    return rv;
+
+  PatchAllModules();    // this will fix up the list of patched libraries
+  return rv;
+}
+
+
+// ---------------------------------------------------------------------
+// PatchWindowsFunctions()
+//    This is the function that is exposed to the outside world.
+//    It should be called before the program becomes multi-threaded,
+//    since main_executable_windows.Patch() is not thread-safe.
+// ---------------------------------------------------------------------
+
+void PatchWindowsFunctions() {
+  // This does the libc patching in every module, and the main executable.
+  PatchAllModules();
+  main_executable_windows.Patch();
+}
+
+#if 0
+// It's possible to unpatch all the functions when we are exiting.
+
+// The idea is to handle properly windows-internal data that is
+// allocated before PatchWindowsFunctions is called.  If all
+// destruction happened in reverse order from construction, then we
+// could call UnpatchWindowsFunctions at just the right time, so that
+// that early-allocated data would be freed using the windows
+// allocation functions rather than tcmalloc.  The problem is that
+// windows allocates some structures lazily, so it would allocate them
+// late (using tcmalloc) and then try to deallocate them late as well.
+// So instead of unpatching, we just modify all the tcmalloc routines
+// so they call through to the libc rountines if the memory in
+// question doesn't seem to have been allocated with tcmalloc.  I keep
+// this unpatch code around for reference.
+
+void UnpatchWindowsFunctions() {
+  // We need to go back to the system malloc/etc at global destruct time,
+  // so objects that were constructed before tcmalloc, using the system
+  // malloc, can destroy themselves using the system free.  This depends
+  // on DLLs unloading in the reverse order in which they load!
+  //
+  // We also go back to the default HeapAlloc/etc, just for consistency.
+  // Who knows, it may help avoid weird bugs in some situations.
+  main_executable_windows.Unpatch();
+  main_executable.Unpatch();
+  if (libc1.is_valid()) libc1.Unpatch();
+  if (libc2.is_valid()) libc2.Unpatch();
+  if (libc3.is_valid()) libc3.Unpatch();
+  if (libc4.is_valid()) libc4.Unpatch();
+  if (libc5.is_valid()) libc5.Unpatch();
+  if (libc6.is_valid()) libc6.Unpatch();
+  if (libc7.is_valid()) libc7.Unpatch();
+  if (libc8.is_valid()) libc8.Unpatch();
+}
+#endif
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/port.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/port.cc
new file mode 100644
index 000000000..e73c5086f
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/port.cc
@@ -0,0 +1,249 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Craig Silverstein
+ */
+
+#ifndef _WIN32
+# error You should only be including windows/port.cc in a windows environment!
+#endif
+
+#define NOMINMAX       // so std::max, below, compiles correctly
+#include 
+#include     // for strlen(), memset(), memcmp()
+#include 
+#include     // for va_list, va_start, va_end
+#include    // for std:{min,max}
+#include 
+#include "port.h"
+#include "base/logging.h"
+#include "base/spinlock.h"
+#include "internal_logging.h"
+
+// -----------------------------------------------------------------------
+// Basic libraries
+
+PERFTOOLS_DLL_DECL
+int getpagesize() {
+  static int pagesize = 0;
+  if (pagesize == 0) {
+    SYSTEM_INFO system_info;
+    GetSystemInfo(&system_info);
+    pagesize = std::max(system_info.dwPageSize,
+                        system_info.dwAllocationGranularity);
+  }
+  return pagesize;
+}
+
+extern "C" PERFTOOLS_DLL_DECL void* __sbrk(ptrdiff_t increment) {
+  LOG(FATAL, "Windows doesn't implement sbrk!\n");
+  return NULL;
+}
+
+// We need to write to 'stderr' without having windows allocate memory.
+// The safest way is via a low-level call like WriteConsoleA().  But
+// even then we need to be sure to print in small bursts so as to not
+// require memory allocation.
+extern "C" PERFTOOLS_DLL_DECL void WriteToStderr(const char* buf, int len) {
+  // Looks like windows allocates for writes of >80 bytes
+  for (int i = 0; i < len; i += 80) {
+    write(STDERR_FILENO, buf + i, std::min(80, len - i));
+  }
+}
+
+
+// -----------------------------------------------------------------------
+// Threads code
+
+// Windows doesn't support pthread_key_create's destr_function, and in
+// fact it's a bit tricky to get code to run when a thread exits.  This
+// is cargo-cult magic from https://www.codeproject.com/Articles/8113/Thread-Local-Storage-The-C-Way
+// and http://lallouslab.net/2017/05/30/using-cc-tls-callbacks-in-visual-studio-with-your-32-or-64bits-programs/.
+// This code is for VC++ 7.1 and later; VC++ 6.0 support is possible
+// but more busy-work -- see the webpage for how to do it.  If all
+// this fails, we could use DllMain instead.  The big problem with
+// DllMain is it doesn't run if this code is statically linked into a
+// binary (it also doesn't run if the thread is terminated via
+// TerminateThread, which if we're lucky this routine does).
+
+// Force a reference to _tls_used to make the linker create the TLS directory
+// if it's not already there (that is, even if __declspec(thread) is not used).
+// Force a reference to p_thread_callback_tcmalloc and p_process_term_tcmalloc
+// to prevent whole program optimization from discarding the variables.
+#ifdef _MSC_VER
+#if defined(_M_IX86)
+#pragma comment(linker, "/INCLUDE:__tls_used")
+#pragma comment(linker, "/INCLUDE:_p_thread_callback_tcmalloc")
+#pragma comment(linker, "/INCLUDE:_p_process_term_tcmalloc")
+#elif defined(_M_X64)
+#pragma comment(linker, "/INCLUDE:_tls_used")
+#pragma comment(linker, "/INCLUDE:p_thread_callback_tcmalloc")
+#pragma comment(linker, "/INCLUDE:p_process_term_tcmalloc")
+#endif
+#endif
+
+// When destr_fn eventually runs, it's supposed to take as its
+// argument the tls-value associated with key that pthread_key_create
+// creates.  (Yeah, it sounds confusing but it's really not.)  We
+// store the destr_fn/key pair in this data structure.  Because we
+// store this in a single var, this implies we can only have one
+// destr_fn in a program!  That's enough in practice.  If asserts
+// trigger because we end up needing more, we'll have to turn this
+// into an array.
+struct DestrFnClosure {
+  void (*destr_fn)(void*);
+  pthread_key_t key_for_destr_fn_arg;
+};
+
+static DestrFnClosure destr_fn_info;   // initted to all NULL/0.
+
+static int on_process_term(void) {
+  if (destr_fn_info.destr_fn) {
+    void *ptr = TlsGetValue(destr_fn_info.key_for_destr_fn_arg);
+    // This shouldn't be necessary, but in Release mode, Windows
+    // sometimes trashes the pointer in the TLS slot, so we need to
+    // remove the pointer from the TLS slot before the thread dies.
+    TlsSetValue(destr_fn_info.key_for_destr_fn_arg, NULL);
+    if (ptr)  // pthread semantics say not to call if ptr is NULL
+      (*destr_fn_info.destr_fn)(ptr);
+  }
+  return 0;
+}
+
+static void NTAPI on_tls_callback(HINSTANCE h, DWORD dwReason, PVOID pv) {
+  if (dwReason == DLL_THREAD_DETACH) {   // thread is being destroyed!
+    on_process_term();
+  }
+}
+
+#ifdef _MSC_VER
+
+// extern "C" suppresses C++ name mangling so we know the symbol names
+// for the linker /INCLUDE:symbol pragmas above.
+// Note that for some unknown reason, the extern "C" {} construct is ignored
+// by the MSVC VS2017 compiler (at least) when a const modifier is used
+#if defined(_M_IX86)
+extern "C" {
+// In x86, the PE loader looks for callbacks in a data segment
+#pragma data_seg(push, old_seg)
+#pragma data_seg(".CRT$XLB")
+void (NTAPI *p_thread_callback_tcmalloc)(
+    HINSTANCE h, DWORD dwReason, PVOID pv) = on_tls_callback;
+#pragma data_seg(".CRT$XTU")
+int (*p_process_term_tcmalloc)(void) = on_process_term;
+#pragma data_seg(pop, old_seg)
+}  // extern "C"
+#elif defined(_M_X64)
+// In x64, the PE loader looks for callbacks in a constant segment
+#pragma const_seg(push, oldseg)
+#pragma const_seg(".CRT$XLB")
+extern "C" void (NTAPI * const p_thread_callback_tcmalloc)(
+	HINSTANCE h, DWORD dwReason, PVOID pv) = on_tls_callback;
+#pragma const_seg(".CRT$XTU")
+extern "C" int (NTAPI * const p_process_term_tcmalloc)(void) = on_process_term;
+#pragma const_seg(pop, oldseg)
+#endif
+
+#else  // #ifdef _MSC_VER  [probably msys/mingw]
+
+// We have to try the DllMain solution here, because we can't use the
+// msvc-specific pragmas.
+BOOL WINAPI DllMain(HINSTANCE h, DWORD dwReason, PVOID pv) {
+  if (dwReason == DLL_THREAD_DETACH)
+    on_tls_callback(h, dwReason, pv);
+  else if (dwReason == DLL_PROCESS_DETACH)
+    on_process_term();
+  return TRUE;
+}
+
+#endif  // #ifdef _MSC_VER
+
+extern "C" pthread_key_t PthreadKeyCreate(void (*destr_fn)(void*)) {
+  // Semantics are: we create a new key, and then promise to call
+  // destr_fn with TlsGetValue(key) when the thread is destroyed
+  // (as long as TlsGetValue(key) is not NULL).
+  pthread_key_t key = TlsAlloc();
+  if (destr_fn) {   // register it
+    // If this assert fails, we'll need to support an array of destr_fn_infos
+    assert(destr_fn_info.destr_fn == NULL);
+    destr_fn_info.destr_fn = destr_fn;
+    destr_fn_info.key_for_destr_fn_arg = key;
+  }
+  return key;
+}
+
+// NOTE: this is Win2K and later.  For Win98 we could use a CRITICAL_SECTION...
+extern "C" int perftools_pthread_once(pthread_once_t *once_control,
+                                      void (*init_routine)(void)) {
+  // Try for a fast path first. Note: this should be an acquire semantics read.
+  // It is on x86 and x64, where Windows runs.
+  if (*once_control != 1) {
+    while (true) {
+      switch (InterlockedCompareExchange(once_control, 2, 0)) {
+        case 0:
+          init_routine();
+          InterlockedExchange(once_control, 1);
+          return 0;
+        case 1:
+          // The initializer has already been executed
+          return 0;
+        default:
+          // The initializer is being processed by another thread
+          SwitchToThread();
+      }
+    }
+  }
+  return 0;
+}
+
+
+// -----------------------------------------------------------------------
+// These functions rework existing functions of the same name in the
+// Google codebase.
+
+// A replacement for HeapProfiler::CleanupOldProfiles.
+void DeleteMatchingFiles(const char* prefix, const char* full_glob) {
+  WIN32_FIND_DATAA found;  // that final A is for Ansi (as opposed to Unicode)
+  HANDLE hFind = FindFirstFileA(full_glob, &found);   // A is for Ansi
+  if (hFind != INVALID_HANDLE_VALUE) {
+    const int prefix_length = strlen(prefix);
+    do {
+      const char *fname = found.cFileName;
+      if ((strlen(fname) >= prefix_length) &&
+          (memcmp(fname, prefix, prefix_length) == 0)) {
+        RAW_VLOG(0, "Removing old heap profile %s\n", fname);
+        // TODO(csilvers): we really need to unlink dirname + fname
+        _unlink(fname);
+      }
+    } while (FindNextFileA(hFind, &found) != FALSE);  // A is for Ansi
+    FindClose(hFind);
+  }
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/port.h b/trunk/3rdparty/gperftools-2-fit/src/windows/port.h
new file mode 100644
index 000000000..29c6cb941
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/port.h
@@ -0,0 +1,477 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Craig Silverstein
+ *
+ * These are some portability typedefs and defines to make it a bit
+ * easier to compile this code under VC++.
+ *
+ * Several of these are taken from glib:
+ *    http://developer.gnome.org/doc/API/glib/glib-windows-compatability-functions.html
+ */
+
+#ifndef GOOGLE_BASE_WINDOWS_H_
+#define GOOGLE_BASE_WINDOWS_H_
+
+/* You should never include this file directly, but always include it
+   from either config.h (MSVC) or mingw.h (MinGW/msys). */
+#if !defined(GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_) && \
+    !defined(GOOGLE_PERFTOOLS_WINDOWS_MINGW_H_)
+# error "port.h should only be included from config.h or mingw.h"
+#endif
+
+#ifdef _WIN32
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN  /* We always want minimal includes */
+#endif
+#include 
+#include               /* because we so often use open/close/etc */
+#include           /* for _getcwd */
+#include          /* for _getpid */
+#include           /* for PATH_MAX */
+#include           /* for va_list */
+#include            /* need this to override stdio's (v)snprintf */
+#include        /* for _off_t */
+#include 
+#include           /* for rand, srand, _strtoxxx */
+
+#if defined(_MSC_VER) && _MSC_VER >= 1900
+#define _TIMESPEC_DEFINED
+#include 
+#endif
+
+/*
+ * 4018: signed/unsigned mismatch is common (and ok for signed_i < unsigned_i)
+ * 4244: otherwise we get problems when subtracting two size_t's to an int
+ * 4288: VC++7 gets confused when a var is defined in a loop and then after it
+ * 4267: too many false positives for "conversion gives possible data loss"
+ * 4290: it's ok windows ignores the "throw" directive
+ * 4996: Yes, we're ok using "unsafe" functions like vsnprintf and getenv()
+ * 4146: internal_logging.cc intentionally negates an unsigned value
+ */
+#ifdef _MSC_VER
+#pragma warning(disable:4018 4244 4288 4267 4290 4996 4146)
+#endif
+
+#ifndef __cplusplus
+/* MSVC does not support C99 */
+# if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
+#  ifdef _MSC_VER
+#    define inline __inline
+#  else
+#    define inline static
+#  endif
+# endif
+#endif
+
+#ifdef __cplusplus
+# define EXTERN_C  extern "C"
+#else
+# define EXTERN_C  extern
+#endif
+
+/* ----------------------------------- BASIC TYPES */
+
+#ifndef HAVE_STDINT_H
+# error  Do not know how to set up type aliases.  Edit port.h for your system.
+#endif
+
+/* I guess MSVC's  doesn't include ssize_t by default? */
+#ifdef _MSC_VER
+typedef intptr_t ssize_t;
+#endif
+
+/* ----------------------------------- THREADS */
+
+#ifndef HAVE_PTHREAD   /* not true for MSVC, but may be true for MSYS */
+typedef DWORD pthread_t;
+typedef DWORD pthread_key_t;
+typedef LONG pthread_once_t;
+enum { PTHREAD_ONCE_INIT = 0 };   /* important that this be 0! for SpinLock */
+
+inline pthread_t pthread_self(void) {
+  return GetCurrentThreadId();
+}
+
+#ifdef __cplusplus
+inline bool pthread_equal(pthread_t left, pthread_t right) {
+  return left == right;
+}
+
+/*
+ * windows/port.h defines compatibility APIs for several .h files, which
+ * we therefore shouldn't be #including directly.  This hack keeps us from
+ * doing so.  TODO(csilvers): do something more principled.
+ */
+#define GOOGLE_MAYBE_THREADS_H_ 1
+/* This replaces maybe_threads.{h,cc} */
+
+EXTERN_C pthread_key_t PthreadKeyCreate(void (*destr_fn)(void*));  /* port.cc */
+
+inline int perftools_pthread_key_create(pthread_key_t *pkey,
+                                        void (*destructor)(void*)) {
+  pthread_key_t key = PthreadKeyCreate(destructor);
+  if (key != TLS_OUT_OF_INDEXES) {
+    *(pkey) = key;
+    return 0;
+  } else {
+    return GetLastError();
+  }
+}
+
+inline void* perftools_pthread_getspecific(DWORD key) {
+  DWORD err = GetLastError();
+  void* rv = TlsGetValue(key);
+  if (err) SetLastError(err);
+  return rv;
+}
+
+inline int perftools_pthread_setspecific(pthread_key_t key, const void *value) {
+  if (TlsSetValue(key, (LPVOID)value))
+    return 0;
+  else
+    return GetLastError();
+}
+
+EXTERN_C int perftools_pthread_once(pthread_once_t *once_control,
+                                    void (*init_routine)(void));
+
+#endif  /* __cplusplus */
+
+inline void sched_yield(void) {
+  Sleep(0);
+}
+
+#endif  /* HAVE_PTHREAD */
+
+/*
+ * __declspec(thread) isn't usable in a dll opened via LoadLibrary().
+ * But it doesn't work to LoadLibrary() us anyway, because of all the
+ * things we need to do before main()!  So this kind of TLS is safe for us.
+ */
+#define __thread __declspec(thread)
+
+/*
+ * This code is obsolete, but I keep it around in case we are ever in
+ * an environment where we can't or don't want to use google spinlocks
+ * (from base/spinlock.{h,cc}).  In that case, uncommenting this out,
+ * and removing spinlock.cc from the build, should be enough to revert
+ * back to using native spinlocks.
+ */
+#if 0
+// Windows uses a spinlock internally for its mutexes, making our life easy!
+// However, the Windows spinlock must always be initialized, making life hard,
+// since we want LINKER_INITIALIZED.  We work around this by having the
+// linker initialize a bool to 0, and check that before accessing the mutex.
+// This replaces spinlock.{h,cc}, and all the stuff it depends on (atomicops)
+#ifdef __cplusplus
+class SpinLock {
+ public:
+  SpinLock() : initialize_token_(PTHREAD_ONCE_INIT) {}
+  // Used for global SpinLock vars (see base/spinlock.h for more details).
+  enum StaticInitializer { LINKER_INITIALIZED };
+  explicit SpinLock(StaticInitializer) : initialize_token_(PTHREAD_ONCE_INIT) {
+    perftools_pthread_once(&initialize_token_, InitializeMutex);
+  }
+
+  // It's important SpinLock not have a destructor: otherwise we run
+  // into problems when the main thread has exited, but other threads
+  // are still running and try to access a main-thread spinlock.  This
+  // means we leak mutex_ (we should call DeleteCriticalSection()
+  // here).  However, I've verified that all SpinLocks used in
+  // perftools have program-long scope anyway, so the leak is
+  // perfectly fine.  But be aware of this for the future!
+
+  void Lock() {
+    // You'd thionk this would be unnecessary, since we call
+    // InitializeMutex() in our constructor.  But sometimes Lock() can
+    // be called before our constructor is!  This can only happen in
+    // global constructors, when this is a global.  If we live in
+    // bar.cc, and some global constructor in foo.cc calls a routine
+    // in bar.cc that calls this->Lock(), then Lock() may well run
+    // before our global constructor does.  To protect against that,
+    // we do this check.  For SpinLock objects created after main()
+    // has started, this pthread_once call will always be a noop.
+    perftools_pthread_once(&initialize_token_, InitializeMutex);
+    EnterCriticalSection(&mutex_);
+  }
+  void Unlock() {
+    LeaveCriticalSection(&mutex_);
+  }
+
+  // Used in assertion checks: assert(lock.IsHeld()) (see base/spinlock.h).
+  inline bool IsHeld() const {
+    // This works, but probes undocumented internals, so I've commented it out.
+    // c.f. http://msdn.microsoft.com/msdnmag/issues/03/12/CriticalSections/
+    //return mutex_.LockCount>=0 && mutex_.OwningThread==GetCurrentThreadId();
+    return true;
+  }
+ private:
+  void InitializeMutex() { InitializeCriticalSection(&mutex_); }
+
+  pthread_once_t initialize_token_;
+  CRITICAL_SECTION mutex_;
+};
+
+class SpinLockHolder {  // Acquires a spinlock for as long as the scope lasts
+ private:
+  SpinLock* lock_;
+ public:
+  inline explicit SpinLockHolder(SpinLock* l) : lock_(l) { l->Lock(); }
+  inline ~SpinLockHolder() { lock_->Unlock(); }
+};
+#endif  // #ifdef __cplusplus
+
+// This keeps us from using base/spinlock.h's implementation of SpinLock.
+#define BASE_SPINLOCK_H_ 1
+
+#endif  /* #if 0 */
+
+/* ----------------------------------- MMAP and other memory allocation */
+
+#ifndef HAVE_MMAP   /* not true for MSVC, but may be true for msys */
+#define MAP_FAILED  0
+#define MREMAP_FIXED  2  /* the value in linux, though it doesn't really matter */
+/* These, when combined with the mmap invariants below, yield the proper action */
+#define PROT_READ      PAGE_READWRITE
+#define PROT_WRITE     PAGE_READWRITE
+#define MAP_ANONYMOUS  MEM_RESERVE
+#define MAP_PRIVATE    MEM_COMMIT
+#define MAP_SHARED     MEM_RESERVE   /* value of this #define is 100% arbitrary */
+
+#if __STDC__ && !defined(__MINGW32__)
+typedef _off_t off_t;
+#endif
+
+/* VirtualAlloc only replaces for mmap when certain invariants are kept. */
+inline void *mmap(void *addr, size_t length, int prot, int flags,
+                  int fd, off_t offset) {
+  if (addr == NULL && fd == -1 && offset == 0 &&
+      prot == (PROT_READ|PROT_WRITE) && flags == (MAP_PRIVATE|MAP_ANONYMOUS)) {
+    return VirtualAlloc(0, length, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
+  } else {
+    return NULL;
+  }
+}
+
+inline int munmap(void *addr, size_t length) {
+  return VirtualFree(addr, 0, MEM_RELEASE) ? 0 : -1;
+}
+#endif  /* HAVE_MMAP */
+
+/* We could maybe use VirtualAlloc for sbrk as well, but no need */
+inline void *sbrk(intptr_t increment) {
+  // sbrk returns -1 on failure
+  return (void*)-1;
+}
+
+
+/* ----------------------------------- STRING ROUTINES */
+
+/*
+ * We can't just use _vsnprintf and _snprintf as drop-in-replacements,
+ * because they don't always NUL-terminate. :-(  We also can't use the
+ * name vsnprintf, since windows defines that (but not snprintf (!)).
+ */
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+/* We can use safe CRT functions, which the required functionality */
+inline int perftools_vsnprintf(char *str, size_t size, const char *format,
+                               va_list ap) {
+  return vsnprintf_s(str, size, _TRUNCATE, format, ap);
+}
+#else
+inline int perftools_vsnprintf(char *str, size_t size, const char *format,
+                               va_list ap) {
+  if (size == 0)        /* not even room for a \0? */
+    return -1;        /* not what C99 says to do, but what windows does */
+  str[size-1] = '\0';
+  return _vsnprintf(str, size-1, format, ap);
+}
+#endif
+
+#ifndef HAVE_INTTYPES_H
+#define PRIx64  "I64x"
+#define SCNx64  "I64x"
+#define PRId64  "I64d"
+#define SCNd64  "I64d"
+#define PRIu64  "I64u"
+#ifdef _WIN64
+# define PRIuPTR "llu"
+# define PRIxPTR "llx"
+#else
+# define PRIuPTR "lu"
+# define PRIxPTR "lx"
+#endif
+#endif
+
+/* ----------------------------------- FILE IO */
+
+#ifndef PATH_MAX
+#define PATH_MAX 1024
+#endif
+#ifndef __MINGW32__
+enum { STDIN_FILENO = 0, STDOUT_FILENO = 1, STDERR_FILENO = 2 };
+#endif
+#ifndef O_RDONLY
+#define O_RDONLY  _O_RDONLY
+#endif
+
+#if __STDC__ && !defined(__MINGW32__)
+/* These functions are considered non-standard */
+inline int access(const char *pathname, int mode) {
+  return _access(pathname, mode);
+}
+inline int open(const char *pathname, int flags, int mode = 0) {
+  return _open(pathname, flags, mode);
+}
+inline int close(int fd) {
+  return _close(fd);
+}
+inline ssize_t read(int fd, void *buf, size_t count) {
+  return _read(fd, buf, count);
+}
+inline ssize_t write(int fd, const void *buf, size_t count) {
+  return _write(fd, buf, count);
+}
+inline off_t lseek(int fd, off_t offset, int whence) {
+  return _lseek(fd, offset, whence);
+}
+inline char *getcwd(char *buf, size_t size) {
+  return _getcwd(buf, size);
+}
+inline int mkdir(const char *pathname, int) {
+  return _mkdir(pathname);
+}
+
+inline FILE *popen(const char *command, const char *type) {
+  return _popen(command, type);
+}
+inline int pclose(FILE *stream) {
+  return _pclose(stream);
+}
+#endif
+
+EXTERN_C PERFTOOLS_DLL_DECL void WriteToStderr(const char* buf, int len);
+
+/* ----------------------------------- SYSTEM/PROCESS */
+
+#ifndef HAVE_PID_T
+typedef int pid_t;
+#endif
+
+#if __STDC__ && !defined(__MINGW32__)
+inline pid_t getpid(void) { return _getpid(); }
+#endif
+inline pid_t getppid(void) { return 0; }
+
+/* Handle case when poll is used to simulate sleep. */
+inline int poll(struct pollfd* fds, int nfds, int timeout) {
+  assert(fds == NULL);
+  assert(nfds == 0);
+  Sleep(timeout);
+  return 0;
+}
+
+EXTERN_C PERFTOOLS_DLL_DECL int getpagesize();   /* in port.cc */
+
+/* ----------------------------------- OTHER */
+
+inline void srandom(unsigned int seed) { srand(seed); }
+inline long random(void) { return rand(); }
+
+#ifndef HAVE_DECL_SLEEP
+#define HAVE_DECL_SLEEP 0
+#endif
+
+#if !HAVE_DECL_SLEEP
+inline unsigned int sleep(unsigned int seconds) {
+  Sleep(seconds * 1000);
+  return 0;
+}
+#endif
+
+// mingw64 seems to define timespec (though mingw.org mingw doesn't),
+// protected by the _TIMESPEC_DEFINED macro.
+#ifndef _TIMESPEC_DEFINED
+struct timespec {
+  int tv_sec;
+  int tv_nsec;
+};
+#endif
+
+#ifndef HAVE_DECL_NANOSLEEP
+#define HAVE_DECL_NANOSLEEP 0
+#endif
+
+// latest mingw64 has nanosleep. Earlier mingw and MSVC do not
+#if !HAVE_DECL_NANOSLEEP
+inline int nanosleep(const struct timespec *req, struct timespec *rem) {
+  Sleep(req->tv_sec * 1000 + req->tv_nsec / 1000000);
+  return 0;
+}
+#endif
+
+#ifndef __MINGW32__
+#if defined(_MSC_VER) && _MSC_VER < 1800
+inline long long int strtoll(const char *nptr, char **endptr, int base) {
+    return _strtoi64(nptr, endptr, base);
+}
+inline unsigned long long int strtoull(const char *nptr, char **endptr,
+                                       int base) {
+    return _strtoui64(nptr, endptr, base);
+}
+inline long long int strtoq(const char *nptr, char **endptr, int base) {
+    return _strtoi64(nptr, endptr, base);
+}
+#endif
+inline unsigned long long int strtouq(const char *nptr, char **endptr,
+                                      int base) {
+    return _strtoui64(nptr, endptr, base);
+}
+inline long long atoll(const char *nptr) {
+  return _atoi64(nptr);
+}
+#endif
+
+#define __THROW throw()
+
+/* ----------------------------------- TCMALLOC-SPECIFIC */
+
+/* tcmalloc.cc calls this so we can patch VirtualAlloc() et al. */
+extern void PatchWindowsFunctions();
+
+#endif  /* _WIN32 */
+
+#undef inline
+#undef EXTERN_C
+
+#endif  /* GOOGLE_BASE_WINDOWS_H_ */
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher.cc
new file mode 100644
index 000000000..5b5fc35b1
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher.cc
@@ -0,0 +1,736 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ * Author: Scott Francis
+ *
+ * Implementation of PreamblePatcher
+ */
+
+#include "preamble_patcher.h"
+
+#include "mini_disassembler.h"
+
+// compatibility shims
+#include "base/logging.h"
+
+// Definitions of assembly statements we need
+#define ASM_JMP32REL 0xE9
+#define ASM_INT3 0xCC
+#define ASM_JMP32ABS_0 0xFF
+#define ASM_JMP32ABS_1 0x25
+#define ASM_JMP8REL 0xEB
+#define ASM_JCC32REL_0 0x0F
+#define ASM_JCC32REL_1_MASK 0x80
+#define ASM_NOP 0x90
+// X64 opcodes
+#define ASM_REXW 0x48
+#define ASM_MOVRAX_IMM 0xB8
+#define ASM_JMP 0xFF
+#define ASM_JMP_RAX 0xE0
+
+namespace sidestep {
+
+PreamblePatcher::PreamblePage* PreamblePatcher::preamble_pages_ = NULL;
+long PreamblePatcher::granularity_ = 0;
+long PreamblePatcher::pagesize_ = 0;
+bool PreamblePatcher::initialized_ = false;
+
+static const unsigned int kPreamblePageMagic = 0x4347414D; // "MAGC"
+
+// Handle a special case that we see with functions that point into an
+// IAT table (including functions linked statically into the
+// application): these function already starts with ASM_JMP32*.  For
+// instance, malloc() might be implemented as a JMP to __malloc().
+// This function follows the initial JMPs for us, until we get to the
+// place where the actual code is defined.  If we get to STOP_BEFORE,
+// we return the address before stop_before.  The stop_before_trampoline
+// flag is used in 64-bit mode.  If true, we will return the address
+// before a trampoline is detected.  Trampolines are defined as:
+//
+//    nop
+//    mov rax, 
+//    jmp rax
+//
+// See PreamblePatcher::RawPatchWithStub for more information.
+void* PreamblePatcher::ResolveTargetImpl(unsigned char* target,
+                                         unsigned char* stop_before,
+                                         bool stop_before_trampoline) {
+  if (target == NULL)
+    return NULL;
+  while (1) {
+    unsigned char* new_target;
+    if (target[0] == ASM_JMP32REL) {
+      // target[1-4] holds the place the jmp goes to, but it's
+      // relative to the next instruction.
+      int relative_offset;   // Windows guarantees int is 4 bytes
+      SIDESTEP_ASSERT(sizeof(relative_offset) == 4);
+      memcpy(reinterpret_cast(&relative_offset),
+             reinterpret_cast(target + 1), 4);
+      new_target = target + 5 + relative_offset;
+    } else if (target[0] == ASM_JMP8REL) {
+      // Visual Studio 7.1 implements new[] as an 8 bit jump to new
+      signed char relative_offset;
+      memcpy(reinterpret_cast(&relative_offset),
+             reinterpret_cast(target + 1), 1);
+      new_target = target + 2 + relative_offset;
+    } else if (target[0] == ASM_JMP32ABS_0 &&
+               target[1] == ASM_JMP32ABS_1) {
+    jmp32rel:
+      // Visual studio seems to sometimes do it this way instead of the
+      // previous way.  Not sure what the rules are, but it was happening
+      // with operator new in some binaries.
+      void** new_target_v;
+      if (kIs64BitBinary) {
+        // In 64-bit mode JMPs are RIP-relative, not absolute
+        int target_offset;
+        memcpy(reinterpret_cast(&target_offset),
+               reinterpret_cast(target + 2), 4);
+        new_target_v = reinterpret_cast(target + target_offset + 6);
+      } else {
+        SIDESTEP_ASSERT(sizeof(new_target) == 4);
+        memcpy(&new_target_v, reinterpret_cast(target + 2), 4);
+      }
+      new_target = reinterpret_cast(*new_target_v);
+    } else if (kIs64BitBinary && target[0] == ASM_REXW
+               && target[1] == ASM_JMP32ABS_0
+               && target[2] == ASM_JMP32ABS_1) {
+      // in Visual Studio 2012 we're seeing jump like that:
+      //   rex.W jmpq *0x11d019(%rip)
+      //
+      // according to docs I have, rex prefix is actually unneeded and
+      // can be ignored. I.e. docs say for jumps like that operand
+      // already defaults to 64-bit. But clearly it breaks abs. jump
+      // detection above and we just skip rex
+      target++;
+      goto jmp32rel;
+    } else {
+      break;
+    }
+    if (new_target == stop_before)
+      break;
+    if (stop_before_trampoline && *new_target == ASM_NOP
+        && new_target[1] == ASM_REXW && new_target[2] == ASM_MOVRAX_IMM)
+      break;
+    target = new_target;
+  }
+  return target;
+}
+
+// Special case scoped_ptr to avoid dependency on scoped_ptr below.
+class DeleteUnsignedCharArray {
+ public:
+  DeleteUnsignedCharArray(unsigned char* array) : array_(array) {
+  }
+
+  ~DeleteUnsignedCharArray() {
+    if (array_) {
+      PreamblePatcher::FreePreambleBlock(array_);
+    }
+  }
+
+  unsigned char* Release() {
+    unsigned char* temp = array_;
+    array_ = NULL;
+    return temp;
+  }
+
+ private:
+  unsigned char* array_;
+};
+
+SideStepError PreamblePatcher::RawPatchWithStubAndProtections(
+    void* target_function, void *replacement_function,
+    unsigned char* preamble_stub, unsigned long stub_size,
+    unsigned long* bytes_needed) {
+  // We need to be able to write to a process-local copy of the first
+  // MAX_PREAMBLE_STUB_SIZE bytes of target_function
+  DWORD old_target_function_protect = 0;
+  BOOL succeeded = ::VirtualProtect(reinterpret_cast(target_function),
+                                    MAX_PREAMBLE_STUB_SIZE,
+                                    PAGE_EXECUTE_READWRITE,
+                                    &old_target_function_protect);
+  if (!succeeded) {
+    SIDESTEP_ASSERT(false && "Failed to make page containing target function "
+                    "copy-on-write.");
+    return SIDESTEP_ACCESS_DENIED;
+  }
+
+  SideStepError error_code = RawPatchWithStub(target_function,
+                                              replacement_function,
+                                              preamble_stub,
+                                              stub_size,
+                                              bytes_needed);
+
+  // Restore the protection of the first MAX_PREAMBLE_STUB_SIZE bytes of
+  // pTargetFunction to what they were before we started goofing around.
+  // We do this regardless of whether the patch succeeded or not.
+  succeeded = ::VirtualProtect(reinterpret_cast(target_function),
+                               MAX_PREAMBLE_STUB_SIZE,
+                               old_target_function_protect,
+                               &old_target_function_protect);
+  if (!succeeded) {
+    SIDESTEP_ASSERT(false &&
+                    "Failed to restore protection to target function.");
+    // We must not return an error here because the function has
+    // likely actually been patched, and returning an error might
+    // cause our client code not to unpatch it.  So we just keep
+    // going.
+  }
+
+  if (SIDESTEP_SUCCESS != error_code) {  // Testing RawPatchWithStub, above
+    SIDESTEP_ASSERT(false);
+    return error_code;
+  }
+
+  // Flush the instruction cache to make sure the processor doesn't execute the
+  // old version of the instructions (before our patch).
+  //
+  // FlushInstructionCache is actually a no-op at least on
+  // single-processor XP machines.  I'm not sure why this is so, but
+  // it is, yet I want to keep the call to the API here for
+  // correctness in case there is a difference in some variants of
+  // Windows/hardware.
+  succeeded = ::FlushInstructionCache(::GetCurrentProcess(),
+                                      target_function,
+                                      MAX_PREAMBLE_STUB_SIZE);
+  if (!succeeded) {
+    SIDESTEP_ASSERT(false && "Failed to flush instruction cache.");
+    // We must not return an error here because the function has actually
+    // been patched, and returning an error would likely cause our client
+    // code not to unpatch it.  So we just keep going.
+  }
+
+  return SIDESTEP_SUCCESS;
+}
+
+SideStepError PreamblePatcher::RawPatch(void* target_function,
+                                        void* replacement_function,
+                                        void** original_function_stub) {
+  if (!target_function || !replacement_function || !original_function_stub ||
+      (*original_function_stub) || target_function == replacement_function) {
+    SIDESTEP_ASSERT(false && "Preconditions not met");
+    return SIDESTEP_INVALID_PARAMETER;
+  }
+
+  BOOL succeeded = FALSE;
+
+  // First, deal with a special case that we see with functions that
+  // point into an IAT table (including functions linked statically
+  // into the application): these function already starts with
+  // ASM_JMP32REL.  For instance, malloc() might be implemented as a
+  // JMP to __malloc().  In that case, we replace the destination of
+  // the JMP (__malloc), rather than the JMP itself (malloc).  This
+  // way we get the correct behavior no matter how malloc gets called.
+  void* new_target = ResolveTarget(target_function);
+  if (new_target != target_function) {
+    target_function = new_target;
+  }
+
+  // In 64-bit mode, preamble_stub must be within 2GB of target function
+  // so that if target contains a jump, we can translate it.
+  unsigned char* preamble_stub = AllocPreambleBlockNear(target_function);
+  if (!preamble_stub) {
+    SIDESTEP_ASSERT(false && "Unable to allocate preamble-stub.");
+    return SIDESTEP_INSUFFICIENT_BUFFER;
+  }
+
+  // Frees the array at end of scope.
+  DeleteUnsignedCharArray guard_preamble_stub(preamble_stub);
+
+  SideStepError error_code = RawPatchWithStubAndProtections(
+      target_function, replacement_function, preamble_stub,
+      MAX_PREAMBLE_STUB_SIZE, NULL);
+
+  if (SIDESTEP_SUCCESS != error_code) {
+    SIDESTEP_ASSERT(false);
+    return error_code;
+  }
+
+  // Flush the instruction cache to make sure the processor doesn't execute the
+  // old version of the instructions (before our patch).
+  //
+  // FlushInstructionCache is actually a no-op at least on
+  // single-processor XP machines.  I'm not sure why this is so, but
+  // it is, yet I want to keep the call to the API here for
+  // correctness in case there is a difference in some variants of
+  // Windows/hardware.
+  succeeded = ::FlushInstructionCache(::GetCurrentProcess(),
+                                      target_function,
+                                      MAX_PREAMBLE_STUB_SIZE);
+  if (!succeeded) {
+    SIDESTEP_ASSERT(false && "Failed to flush instruction cache.");
+    // We must not return an error here because the function has actually
+    // been patched, and returning an error would likely cause our client
+    // code not to unpatch it.  So we just keep going.
+  }
+
+  SIDESTEP_LOG("PreamblePatcher::RawPatch successfully patched.");
+
+  // detach the scoped pointer so the memory is not freed
+  *original_function_stub =
+      reinterpret_cast(guard_preamble_stub.Release());
+  return SIDESTEP_SUCCESS;
+}
+
+SideStepError PreamblePatcher::Unpatch(void* target_function,
+                                       void* replacement_function,
+                                       void* original_function_stub) {
+  SIDESTEP_ASSERT(target_function && replacement_function &&
+                  original_function_stub);
+  if (!target_function || !replacement_function ||
+      !original_function_stub) {
+    return SIDESTEP_INVALID_PARAMETER;
+  }
+
+  // Before unpatching, target_function should be a JMP to
+  // replacement_function.  If it's not, then either it's an error, or
+  // we're falling into the case where the original instruction was a
+  // JMP, and we patched the jumped_to address rather than the JMP
+  // itself.  (For instance, if malloc() is just a JMP to __malloc(),
+  // we patched __malloc() and not malloc().)
+  unsigned char* target = reinterpret_cast(target_function);
+  target = reinterpret_cast(
+      ResolveTargetImpl(
+          target, reinterpret_cast(replacement_function),
+          true));
+  // We should end at the function we patched.  When we patch, we insert
+  // a ASM_JMP32REL instruction, so look for that as a sanity check.
+  if (target[0] != ASM_JMP32REL) {
+    SIDESTEP_ASSERT(false &&
+                    "target_function does not look like it was patched.");
+    return SIDESTEP_INVALID_PARAMETER;
+  }
+
+  const unsigned int kRequiredTargetPatchBytes = 5;
+
+  // We need to be able to write to a process-local copy of the first
+  // kRequiredTargetPatchBytes bytes of target_function
+  DWORD old_target_function_protect = 0;
+  BOOL succeeded = ::VirtualProtect(reinterpret_cast(target),
+                                    kRequiredTargetPatchBytes,
+                                    PAGE_EXECUTE_READWRITE,
+                                    &old_target_function_protect);
+  if (!succeeded) {
+    SIDESTEP_ASSERT(false && "Failed to make page containing target function "
+                    "copy-on-write.");
+    return SIDESTEP_ACCESS_DENIED;
+  }
+
+  unsigned char* preamble_stub = reinterpret_cast(
+                                   original_function_stub);
+
+  // Disassemble the preamble of stub and copy the bytes back to target.
+  // If we've done any conditional jumps in the preamble we need to convert
+  // them back to the original REL8 jumps in the target.
+  MiniDisassembler disassembler;
+  unsigned int preamble_bytes = 0;
+  unsigned int target_bytes = 0;
+  while (target_bytes < kRequiredTargetPatchBytes) {
+    unsigned int cur_bytes = 0;
+    InstructionType instruction_type =
+        disassembler.Disassemble(preamble_stub + preamble_bytes, cur_bytes);
+    if (IT_JUMP == instruction_type) {
+      unsigned int jump_bytes = 0;
+      SideStepError jump_ret = SIDESTEP_JUMP_INSTRUCTION;
+      if (IsNearConditionalJump(preamble_stub + preamble_bytes, cur_bytes) ||
+          IsNearRelativeJump(preamble_stub + preamble_bytes, cur_bytes) ||
+          IsNearAbsoluteCall(preamble_stub + preamble_bytes, cur_bytes) ||
+          IsNearRelativeCall(preamble_stub + preamble_bytes, cur_bytes)) {
+        jump_ret = PatchNearJumpOrCall(preamble_stub + preamble_bytes,
+                                       cur_bytes, target + target_bytes,
+                                       &jump_bytes, MAX_PREAMBLE_STUB_SIZE);
+      }
+      if (jump_ret == SIDESTEP_JUMP_INSTRUCTION) {
+        SIDESTEP_ASSERT(false &&
+                        "Found unsupported jump instruction in stub!!");
+        return SIDESTEP_UNSUPPORTED_INSTRUCTION;
+      }
+      target_bytes += jump_bytes;
+    } else if (IT_GENERIC == instruction_type) {
+      if (IsMovWithDisplacement(preamble_stub + preamble_bytes, cur_bytes)) {
+        unsigned int mov_bytes = 0;
+        if (PatchMovWithDisplacement(preamble_stub + preamble_bytes, cur_bytes,
+                                     target + target_bytes, &mov_bytes,
+                                     MAX_PREAMBLE_STUB_SIZE)
+                                     != SIDESTEP_SUCCESS) {
+          SIDESTEP_ASSERT(false &&
+                          "Found unsupported generic instruction in stub!!");
+          return SIDESTEP_UNSUPPORTED_INSTRUCTION;
+        }
+      } else {
+        memcpy(reinterpret_cast(target + target_bytes),
+               reinterpret_cast(reinterpret_cast(
+                   original_function_stub) + preamble_bytes), cur_bytes);
+        target_bytes += cur_bytes;
+      }
+    } else {
+      SIDESTEP_ASSERT(false &&
+                      "Found unsupported instruction in stub!!");
+      return SIDESTEP_UNSUPPORTED_INSTRUCTION;
+    }
+    preamble_bytes += cur_bytes;
+  }
+
+  FreePreambleBlock(reinterpret_cast(original_function_stub));
+
+  // Restore the protection of the first kRequiredTargetPatchBytes bytes of
+  // target to what they were before we started goofing around.
+  succeeded = ::VirtualProtect(reinterpret_cast(target),
+                               kRequiredTargetPatchBytes,
+                               old_target_function_protect,
+                               &old_target_function_protect);
+
+  // Flush the instruction cache to make sure the processor doesn't execute the
+  // old version of the instructions (before our patch).
+  //
+  // See comment on FlushInstructionCache elsewhere in this file.
+  succeeded = ::FlushInstructionCache(::GetCurrentProcess(),
+                                      target,
+                                      MAX_PREAMBLE_STUB_SIZE);
+  if (!succeeded) {
+    SIDESTEP_ASSERT(false && "Failed to flush instruction cache.");
+    return SIDESTEP_UNEXPECTED;
+  }
+
+  SIDESTEP_LOG("PreamblePatcher::Unpatch successfully unpatched.");
+  return SIDESTEP_SUCCESS;
+}
+
+void PreamblePatcher::Initialize() {
+  if (!initialized_) {
+    SYSTEM_INFO si = { 0 };
+    ::GetSystemInfo(&si);
+    granularity_ = si.dwAllocationGranularity;
+    pagesize_ = si.dwPageSize;
+    initialized_ = true;
+  }
+}
+
+unsigned char* PreamblePatcher::AllocPreambleBlockNear(void* target) {
+  PreamblePage* preamble_page = preamble_pages_;
+  while (preamble_page != NULL) {
+    if (preamble_page->free_ != NULL) {
+      __int64 val = reinterpret_cast<__int64>(preamble_page) -
+          reinterpret_cast<__int64>(target);
+      if ((val > 0 && val + pagesize_ <= INT_MAX) ||
+          (val < 0 && val >= INT_MIN)) {
+        break;
+      }
+    }
+    preamble_page = preamble_page->next_;
+  }
+
+  // The free_ member of the page is used to store the next available block
+  // of memory to use or NULL if there are no chunks available, in which case
+  // we'll allocate a new page.
+  if (preamble_page == NULL || preamble_page->free_ == NULL) {
+    // Create a new preamble page and initialize the free list
+    preamble_page = reinterpret_cast(AllocPageNear(target));
+    SIDESTEP_ASSERT(preamble_page != NULL && "Could not allocate page!");
+    void** pp = &preamble_page->free_;
+    unsigned char* ptr = reinterpret_cast(preamble_page) +
+        MAX_PREAMBLE_STUB_SIZE;
+    unsigned char* limit = reinterpret_cast(preamble_page) +
+        pagesize_;
+    while (ptr < limit) {
+      *pp = ptr;
+      pp = reinterpret_cast(ptr);
+      ptr += MAX_PREAMBLE_STUB_SIZE;
+    }
+    *pp = NULL;
+    // Insert the new page into the list
+    preamble_page->magic_ = kPreamblePageMagic;
+    preamble_page->next_ = preamble_pages_;
+    preamble_pages_ = preamble_page;
+  }
+  unsigned char* ret = reinterpret_cast(preamble_page->free_);
+  preamble_page->free_ = *(reinterpret_cast(preamble_page->free_));
+  return ret;
+}
+
+void PreamblePatcher::FreePreambleBlock(unsigned char* block) {
+  SIDESTEP_ASSERT(block != NULL);
+  SIDESTEP_ASSERT(granularity_ != 0);
+  uintptr_t ptr = reinterpret_cast(block);
+  ptr -= ptr & (granularity_ - 1);
+  PreamblePage* preamble_page = reinterpret_cast(ptr);
+  SIDESTEP_ASSERT(preamble_page->magic_ == kPreamblePageMagic);
+  *(reinterpret_cast(block)) = preamble_page->free_;
+  preamble_page->free_ = block;
+}
+
+void* PreamblePatcher::AllocPageNear(void* target) {
+  MEMORY_BASIC_INFORMATION mbi = { 0 };
+  if (!::VirtualQuery(target, &mbi, sizeof(mbi))) {
+    SIDESTEP_ASSERT(false && "VirtualQuery failed on target address");
+    return 0;
+  }
+  if (initialized_ == false) {
+    PreamblePatcher::Initialize();
+    SIDESTEP_ASSERT(initialized_);
+  }
+  void* pv = NULL;
+  unsigned char* allocation_base = reinterpret_cast(
+      mbi.AllocationBase);
+  __int64 i = 1;
+  bool high_target = reinterpret_cast<__int64>(target) > UINT_MAX;
+  while (pv == NULL) {
+    __int64 val = reinterpret_cast<__int64>(allocation_base) -
+        (i * granularity_);
+    if (high_target &&
+        reinterpret_cast<__int64>(target) - val > INT_MAX) {
+        // We're further than 2GB from the target
+      break;
+    } else if (val <= 0) {
+      // Less than 0
+      break;
+    }
+    pv = ::VirtualAlloc(reinterpret_cast(allocation_base -
+                            (i++ * granularity_)),
+                        pagesize_, MEM_COMMIT | MEM_RESERVE,
+                        PAGE_EXECUTE_READWRITE);
+  }
+
+  // We couldn't allocate low, try to allocate high
+  if (pv == NULL) {
+    i = 1;
+    // Round up to the next multiple of page granularity
+    allocation_base = reinterpret_cast(
+        (reinterpret_cast<__int64>(target) &
+        (~(granularity_ - 1))) + granularity_);
+    while (pv == NULL) {
+      __int64 val = reinterpret_cast<__int64>(allocation_base) +
+          (i * granularity_) - reinterpret_cast<__int64>(target);
+      if (val > INT_MAX || val < 0) {
+        // We're too far or we overflowed
+        break;
+      }
+      pv = ::VirtualAlloc(reinterpret_cast(allocation_base +
+                              (i++ * granularity_)),
+                          pagesize_, MEM_COMMIT | MEM_RESERVE,
+                          PAGE_EXECUTE_READWRITE);
+    }
+  }
+  return pv;
+}
+
+bool PreamblePatcher::IsShortConditionalJump(
+    unsigned char* target,
+    unsigned int instruction_size) {
+  return (*(target) & 0x70) == 0x70 && instruction_size == 2;
+}
+
+bool PreamblePatcher::IsShortJump(
+    unsigned char* target,
+    unsigned int instruction_size) {
+  return target[0] == 0xeb && instruction_size == 2;
+}
+
+bool PreamblePatcher::IsNearConditionalJump(
+    unsigned char* target,
+    unsigned int instruction_size) {
+  return *(target) == 0xf && (*(target + 1) & 0x80) == 0x80 &&
+      instruction_size == 6;
+}
+
+bool PreamblePatcher::IsNearRelativeJump(
+    unsigned char* target,
+    unsigned int instruction_size) {
+  return *(target) == 0xe9 && instruction_size == 5;
+}
+
+bool PreamblePatcher::IsNearAbsoluteCall(
+    unsigned char* target,
+    unsigned int instruction_size) {
+  return *(target) == 0xff && (*(target + 1) & 0x10) == 0x10 &&
+      instruction_size == 6;
+}
+
+bool PreamblePatcher::IsNearRelativeCall(
+    unsigned char* target,
+    unsigned int instruction_size) {
+  return *(target) == 0xe8 && instruction_size == 5;
+}
+
+bool PreamblePatcher::IsMovWithDisplacement(
+    unsigned char* target,
+    unsigned int instruction_size) {
+  // In this case, the ModRM byte's mod field will be 0 and r/m will be 101b (5)
+  return instruction_size == 7 && *target == 0x48 && *(target + 1) == 0x8b &&
+      (*(target + 2) >> 6) == 0 && (*(target + 2) & 0x7) == 5;
+}
+
+SideStepError PreamblePatcher::PatchShortConditionalJump(
+    unsigned char* source,
+    unsigned int instruction_size,
+    unsigned char* target,
+    unsigned int* target_bytes,
+    unsigned int target_size) {
+  // note: rel8 offset is signed. Thus we need to ask for signed char
+  // to negative offsets right
+  unsigned char* original_jump_dest = (source + 2) + static_cast(source[1]);
+  unsigned char* stub_jump_from = target + 6;
+  __int64 fixup_jump_offset = original_jump_dest - stub_jump_from;
+  if (fixup_jump_offset > INT_MAX || fixup_jump_offset < INT_MIN) {
+    SIDESTEP_ASSERT(false &&
+                    "Unable to fix up short jump because target"
+                    " is too far away.");
+    return SIDESTEP_JUMP_INSTRUCTION;
+  }
+
+  *target_bytes = 6;
+  if (target_size > *target_bytes) {
+    // Convert the short jump to a near jump.
+    //
+    // 0f 8x xx xx xx xx = Jcc rel32off
+    unsigned short jmpcode = ((0x80 | (source[0] & 0xf)) << 8) | 0x0f;
+    memcpy(reinterpret_cast(target),
+           reinterpret_cast(&jmpcode), 2);
+    memcpy(reinterpret_cast(target + 2),
+           reinterpret_cast(&fixup_jump_offset), 4);
+  }
+
+  return SIDESTEP_SUCCESS;
+}
+
+SideStepError PreamblePatcher::PatchShortJump(
+    unsigned char* source,
+    unsigned int instruction_size,
+    unsigned char* target,
+    unsigned int* target_bytes,
+    unsigned int target_size) {
+  // note: rel8 offset is _signed_. Thus we need signed char here.
+  unsigned char* original_jump_dest = (source + 2) + static_cast(source[1]);
+  unsigned char* stub_jump_from = target + 5;
+  __int64 fixup_jump_offset = original_jump_dest - stub_jump_from;
+  if (fixup_jump_offset > INT_MAX || fixup_jump_offset < INT_MIN) {
+    SIDESTEP_ASSERT(false &&
+                    "Unable to fix up short jump because target"
+                    " is too far away.");
+    return SIDESTEP_JUMP_INSTRUCTION;
+  }
+
+  *target_bytes = 5;
+  if (target_size > *target_bytes) {
+    // Convert the short jump to a near jump.
+    //
+    // e9 xx xx xx xx = jmp rel32off
+    target[0] = 0xe9;
+    memcpy(reinterpret_cast(target + 1),
+           reinterpret_cast(&fixup_jump_offset), 4);
+  }
+
+  return SIDESTEP_SUCCESS;
+}
+
+SideStepError PreamblePatcher::PatchNearJumpOrCall(
+    unsigned char* source,
+    unsigned int instruction_size,
+    unsigned char* target,
+    unsigned int* target_bytes,
+    unsigned int target_size) {
+  SIDESTEP_ASSERT(instruction_size == 5 || instruction_size == 6);
+  unsigned int jmp_offset_in_instruction = instruction_size == 5 ? 1 : 2;
+  unsigned char* original_jump_dest = reinterpret_cast(
+      reinterpret_cast<__int64>(source + instruction_size) +
+      *(reinterpret_cast(source + jmp_offset_in_instruction)));
+  unsigned char* stub_jump_from = target + instruction_size;
+  __int64 fixup_jump_offset = original_jump_dest - stub_jump_from;
+  if (fixup_jump_offset > INT_MAX || fixup_jump_offset < INT_MIN) {
+    SIDESTEP_ASSERT(false &&
+                    "Unable to fix up near jump because target"
+                    " is too far away.");
+    return SIDESTEP_JUMP_INSTRUCTION;
+  }
+
+  if ((fixup_jump_offset < SCHAR_MAX && fixup_jump_offset > SCHAR_MIN)) {
+    *target_bytes = 2;
+    if (target_size > *target_bytes) {
+      // If the new offset is in range, use a short jump instead of a near jump.
+      if (source[0] == ASM_JCC32REL_0 &&
+          (source[1] & ASM_JCC32REL_1_MASK) == ASM_JCC32REL_1_MASK) {
+        unsigned short jmpcode = (static_cast(
+            fixup_jump_offset) << 8) | (0x70 | (source[1] & 0xf));
+        memcpy(reinterpret_cast(target),
+               reinterpret_cast(&jmpcode),
+               2);
+      } else {
+        target[0] = ASM_JMP8REL;
+        target[1] = static_cast(fixup_jump_offset);
+      }
+    }
+  } else {
+    *target_bytes = instruction_size;
+    if (target_size > *target_bytes) {
+      memcpy(reinterpret_cast(target),
+             reinterpret_cast(source),
+             jmp_offset_in_instruction);
+      memcpy(reinterpret_cast(target + jmp_offset_in_instruction),
+             reinterpret_cast(&fixup_jump_offset),
+             4);
+    }
+  }
+
+  return SIDESTEP_SUCCESS;
+}
+
+SideStepError PreamblePatcher::PatchMovWithDisplacement(
+     unsigned char* source,
+     unsigned int instruction_size,
+     unsigned char* target,
+     unsigned int* target_bytes,
+     unsigned int target_size) {
+  SIDESTEP_ASSERT(instruction_size == 7);
+  const int mov_offset_in_instruction = 3; // 0x48 0x8b 0x0d 
+  unsigned char* original_mov_dest = reinterpret_cast(
+      reinterpret_cast<__int64>(source + instruction_size) +
+      *(reinterpret_cast(source + mov_offset_in_instruction)));
+  unsigned char* stub_mov_from = target + instruction_size;
+  __int64 fixup_mov_offset = original_mov_dest - stub_mov_from;
+  if (fixup_mov_offset > INT_MAX || fixup_mov_offset < INT_MIN) {
+    SIDESTEP_ASSERT(false &&
+        "Unable to fix up near MOV because target is too far away.");
+    return SIDESTEP_UNEXPECTED;
+  }
+  *target_bytes = instruction_size;
+  if (target_size > *target_bytes) {
+    memcpy(reinterpret_cast(target),
+           reinterpret_cast(source),
+           mov_offset_in_instruction);
+    memcpy(reinterpret_cast(target + mov_offset_in_instruction),
+           reinterpret_cast(&fixup_mov_offset),
+           4);
+  }
+  return SIDESTEP_SUCCESS;
+}
+
+};  // namespace sidestep
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher.h b/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher.h
new file mode 100644
index 000000000..701e57068
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher.h
@@ -0,0 +1,620 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ * Author: Scott Francis
+ *
+ * Definition of PreamblePatcher
+ */
+
+#ifndef GOOGLE_PERFTOOLS_PREAMBLE_PATCHER_H_
+#define GOOGLE_PERFTOOLS_PREAMBLE_PATCHER_H_
+
+#include "config.h"
+#include 
+
+// compatibility shim
+#include "base/logging.h"
+#define SIDESTEP_ASSERT(cond)  RAW_DCHECK(cond, #cond)
+#define SIDESTEP_LOG(msg)      RAW_VLOG(1, msg)
+
+// Maximum size of the preamble stub. We overwrite at least the first 5
+// bytes of the function. Considering the worst case scenario, we need 4
+// bytes + the max instruction size + 5 more bytes for our jump back to
+// the original code. With that in mind, 32 is a good number :)
+#ifdef _M_X64
+// In 64-bit mode we may need more room.  In 64-bit mode all jumps must be
+// within +/-2GB of RIP.  Because of this limitation we may need to use a
+// trampoline to jump to the replacement function if it is further than 2GB
+// away from the target. The trampoline is 14 bytes.
+//
+// So 4 bytes + max instruction size (17 bytes) + 5 bytes to jump back to the
+// original code + trampoline size.  64 bytes is a nice number :-)
+#define MAX_PREAMBLE_STUB_SIZE    (64)
+#else
+#define MAX_PREAMBLE_STUB_SIZE    (32)
+#endif
+
+// Determines if this is a 64-bit binary.
+#ifdef _M_X64
+static const bool kIs64BitBinary = true;
+#else
+static const bool kIs64BitBinary = false;
+#endif
+
+namespace sidestep {
+
+// Possible results of patching/unpatching
+enum SideStepError {
+  SIDESTEP_SUCCESS = 0,
+  SIDESTEP_INVALID_PARAMETER,
+  SIDESTEP_INSUFFICIENT_BUFFER,
+  SIDESTEP_JUMP_INSTRUCTION,
+  SIDESTEP_FUNCTION_TOO_SMALL,
+  SIDESTEP_UNSUPPORTED_INSTRUCTION,
+  SIDESTEP_NO_SUCH_MODULE,
+  SIDESTEP_NO_SUCH_FUNCTION,
+  SIDESTEP_ACCESS_DENIED,
+  SIDESTEP_UNEXPECTED,
+};
+
+#define SIDESTEP_TO_HRESULT(error)                      \
+  MAKE_HRESULT(SEVERITY_ERROR, FACILITY_NULL, error)
+
+class DeleteUnsignedCharArray;
+
+// Implements a patching mechanism that overwrites the first few bytes of
+// a function preamble with a jump to our hook function, which is then
+// able to call the original function via a specially-made preamble-stub
+// that imitates the action of the original preamble.
+//
+// NOTE:  This patching mechanism should currently only be used for
+// non-production code, e.g. unit tests, because it is not threadsafe.
+// See the TODO in preamble_patcher_with_stub.cc for instructions on what
+// we need to do before using it in production code; it's fairly simple
+// but unnecessary for now since we only intend to use it in unit tests.
+//
+// To patch a function, use either of the typesafe Patch() methods.  You
+// can unpatch a function using Unpatch().
+//
+// Typical usage goes something like this:
+// @code
+// typedef int (*MyTypesafeFuncPtr)(int x);
+// MyTypesafeFuncPtr original_func_stub;
+// int MyTypesafeFunc(int x) { return x + 1; }
+// int HookMyTypesafeFunc(int x) { return 1 + original_func_stub(x); }
+//
+// void MyPatchInitializingFunction() {
+//   original_func_stub = PreamblePatcher::Patch(
+//              MyTypesafeFunc, HookMyTypesafeFunc);
+//   if (!original_func_stub) {
+//     // ... error handling ...
+//   }
+//
+//   // ... continue - you have patched the function successfully ...
+// }
+// @endcode
+//
+// Note that there are a number of ways that this method of patching can
+// fail.  The most common are:
+//    - If there is a jump (jxx) instruction in the first 5 bytes of
+//    the function being patched, we cannot patch it because in the
+//    current implementation we do not know how to rewrite relative
+//    jumps after relocating them to the preamble-stub.  Note that
+//    if you really really need to patch a function like this, it
+//    would be possible to add this functionality (but at some cost).
+//    - If there is a return (ret) instruction in the first 5 bytes
+//    we cannot patch the function because it may not be long enough
+//    for the jmp instruction we use to inject our patch.
+//    - If there is another thread currently executing within the bytes
+//    that are copied to the preamble stub, it will crash in an undefined
+//    way.
+//
+// If you get any other error than the above, you're either pointing the
+// patcher at an invalid instruction (e.g. into the middle of a multi-
+// byte instruction, or not at memory containing executable instructions)
+// or, there may be a bug in the disassembler we use to find
+// instruction boundaries.
+//
+// NOTE:  In optimized builds, when you have very trivial functions that
+// the compiler can reason do not have side effects, the compiler may
+// reuse the result of calling the function with a given parameter, which
+// may mean if you patch the function in between your patch will never get
+// invoked.  See preamble_patcher_test.cc for an example.
+class PERFTOOLS_DLL_DECL PreamblePatcher {
+ public:
+
+  // This is a typesafe version of RawPatch(), identical in all other
+  // ways than it takes a template parameter indicating the type of the
+  // function being patched.
+  //
+  // @param T The type of the function you are patching. Usually
+  // you will establish this type using a typedef, as in the following
+  // example:
+  // @code
+  // typedef BOOL (WINAPI *MessageBoxPtr)(HWND, LPCTSTR, LPCTSTR, UINT);
+  // MessageBoxPtr original = NULL;
+  // PreamblePatcher::Patch(MessageBox, Hook_MessageBox, &original);
+  // @endcode
+  template 
+  static SideStepError Patch(T target_function,
+                             T replacement_function,
+                             T* original_function_stub) {
+    // NOTE: casting from a function to a pointer is contra the C++
+    //       spec.  It's not safe on IA64, but is on i386.  We use
+    //       a C-style cast here to emphasize this is not legal C++.
+    return RawPatch((void*)(target_function),
+                    (void*)(replacement_function),
+                    (void**)(original_function_stub));
+  }
+
+  // Patches a named function imported from the named module using
+  // preamble patching.  Uses RawPatch() to do the actual patching
+  // work.
+  //
+  // @param T The type of the function you are patching.  Must
+  // exactly match the function you specify using module_name and
+  // function_name.
+  //
+  // @param module_name The name of the module from which the function
+  // is being imported.  Note that the patch will fail if this module
+  // has not already been loaded into the current process.
+  //
+  // @param function_name The name of the function you wish to patch.
+  //
+  // @param replacement_function Your replacement function which
+  // will be called whenever code tries to call the original function.
+  //
+  // @param original_function_stub Pointer to memory that should receive a
+  // pointer that can be used (e.g. in the replacement function) to call the
+  // original function, or NULL to indicate failure.
+  //
+  // @return One of the EnSideStepError error codes; only SIDESTEP_SUCCESS
+  // indicates success.
+  template 
+  static SideStepError Patch(LPCTSTR module_name,
+                             LPCSTR function_name,
+                             T replacement_function,
+                             T* original_function_stub) {
+    SIDESTEP_ASSERT(module_name && function_name);
+    if (!module_name || !function_name) {
+      SIDESTEP_ASSERT(false &&
+                      "You must specify a module name and function name.");
+      return SIDESTEP_INVALID_PARAMETER;
+    }
+    HMODULE module = ::GetModuleHandle(module_name);
+    SIDESTEP_ASSERT(module != NULL);
+    if (!module) {
+      SIDESTEP_ASSERT(false && "Invalid module name.");
+      return SIDESTEP_NO_SUCH_MODULE;
+    }
+    FARPROC existing_function = ::GetProcAddress(module, function_name);
+    if (!existing_function) {
+      SIDESTEP_ASSERT(
+          false && "Did not find any function with that name in the module.");
+      return SIDESTEP_NO_SUCH_FUNCTION;
+    }
+    // NOTE: casting from a function to a pointer is contra the C++
+    //       spec.  It's not safe on IA64, but is on i386.  We use
+    //       a C-style cast here to emphasize this is not legal C++.
+    return RawPatch((void*)existing_function, (void*)replacement_function,
+                    (void**)(original_function_stub));
+  }
+
+  // Patches a function by overwriting its first few bytes with
+  // a jump to a different function.  This is the "worker" function
+  // for each of the typesafe Patch() functions.  In most cases,
+  // it is preferable to use the Patch() functions rather than
+  // this one as they do more checking at compile time.
+  //
+  // @param target_function A pointer to the function that should be
+  // patched.
+  //
+  // @param replacement_function A pointer to the function that should
+  // replace the target function.  The replacement function must have
+  // exactly the same calling convention and parameters as the original
+  // function.
+  //
+  // @param original_function_stub Pointer to memory that should receive a
+  // pointer that can be used (e.g. in the replacement function) to call the
+  // original function, or NULL to indicate failure.
+  //
+  // @param original_function_stub Pointer to memory that should receive a
+  // pointer that can be used (e.g. in the replacement function) to call the
+  // original function, or NULL to indicate failure.
+  //
+  // @return One of the EnSideStepError error codes; only SIDESTEP_SUCCESS
+  // indicates success.
+  //
+  // @note The preamble-stub (the memory pointed to by
+  // *original_function_stub) is allocated on the heap, and (in
+  // production binaries) never destroyed, resulting in a memory leak.  This
+  // will be the case until we implement safe unpatching of a method.
+  // However, it is quite difficult to unpatch a method (because other
+  // threads in the process may be using it) so we are leaving it for now.
+  // See however UnsafeUnpatch, which can be used for binaries where you
+  // know only one thread is running, e.g. unit tests.
+  static SideStepError RawPatch(void* target_function,
+                                void* replacement_function,
+                                void** original_function_stub);
+
+  // Unpatches target_function and deletes the stub that previously could be
+  // used to call the original version of the function.
+  //
+  // DELETES the stub that is passed to the function.
+  //
+  // @param target_function Pointer to the target function which was
+  // previously patched, i.e. a pointer which value should match the value
+  // of the symbol prior to patching it.
+  //
+  // @param replacement_function Pointer to the function target_function
+  // was patched to.
+  //
+  // @param original_function_stub Pointer to the stub returned when
+  // patching, that could be used to call the original version of the
+  // patched function.  This function will also delete the stub, which after
+  // unpatching is useless.
+  //
+  // If your original call was
+  //    Patch(VirtualAlloc, MyVirtualAlloc, &origptr)
+  // then to undo it you would call
+  //    Unpatch(VirtualAlloc, MyVirtualAlloc, origptr);
+  //
+  // @return One of the EnSideStepError error codes; only SIDESTEP_SUCCESS
+  // indicates success.
+  static SideStepError Unpatch(void* target_function,
+                               void* replacement_function,
+                               void* original_function_stub);
+
+  // A helper routine when patching, which follows jmp instructions at
+  // function addresses, to get to the "actual" function contents.
+  // This allows us to identify two functions that are at different
+  // addresses but actually resolve to the same code.
+  //
+  // @param target_function Pointer to a function.
+  //
+  // @return Either target_function (the input parameter), or if
+  // target_function's body consists entirely of a JMP instruction,
+  // the address it JMPs to (or more precisely, the address at the end
+  // of a chain of JMPs).
+  template 
+  static T ResolveTarget(T target_function) {
+    return (T)ResolveTargetImpl((unsigned char*)target_function, NULL);
+  }
+
+  // Allocates a block of memory of size MAX_PREAMBLE_STUB_SIZE that is as
+  // close (within 2GB) as possible to target.  This is done to ensure that
+  // we can perform a relative jump from target to a trampoline if the
+  // replacement function is > +-2GB from target.  This means that we only need
+  // to patch 5 bytes in the target function.
+  //
+  // @param target    Pointer to target function.
+  //
+  // @return  Returns a block of memory of size MAX_PREAMBLE_STUB_SIZE that can
+  //          be used to store a function preamble block.
+  static unsigned char* AllocPreambleBlockNear(void* target);
+
+  // Frees a block allocated by AllocPreambleBlockNear.
+  //
+  // @param block     Block that was returned by AllocPreambleBlockNear.
+  static void FreePreambleBlock(unsigned char* block);
+
+ private:
+  friend class DeleteUnsignedCharArray;
+
+   // Used to store data allocated for preamble stubs
+  struct PreamblePage {
+    unsigned int magic_;
+    PreamblePage* next_;
+    // This member points to a linked list of free blocks within the page
+    // or NULL if at the end
+    void* free_;
+  };
+
+  // In 64-bit mode, the replacement function must be within 2GB of the original
+  // target in order to only require 5 bytes for the function patch.  To meet
+  // this requirement we're creating an allocator within this class to
+  // allocate blocks that are within 2GB of a given target. This member is the
+  // head of a linked list of pages used to allocate blocks that are within
+  // 2GB of the target.
+  static PreamblePage* preamble_pages_;
+
+  // Page granularity
+  static long granularity_;
+
+  // Page size
+  static long pagesize_;
+
+  // Determines if the patcher has been initialized.
+  static bool initialized_;
+
+  // Used to initialize static members.
+  static void Initialize();
+
+  // Patches a function by overwriting its first few bytes with
+  // a jump to a different function.  This is similar to the RawPatch
+  // function except that it uses the stub allocated by the caller
+  // instead of allocating it.
+  //
+  // We call VirtualProtect to make the
+  // target function writable at least for the duration of the call.
+  //
+  // @param target_function A pointer to the function that should be
+  // patched.
+  //
+  // @param replacement_function A pointer to the function that should
+  // replace the target function.  The replacement function must have
+  // exactly the same calling convention and parameters as the original
+  // function.
+  //
+  // @param preamble_stub A pointer to a buffer where the preamble stub
+  // should be copied. The size of the buffer should be sufficient to
+  // hold the preamble bytes.
+  //
+  // @param stub_size Size in bytes of the buffer allocated for the
+  // preamble_stub
+  //
+  // @param bytes_needed Pointer to a variable that receives the minimum
+  // number of bytes required for the stub.  Can be set to NULL if you're
+  // not interested.
+  //
+  // @return An error code indicating the result of patching.
+  static SideStepError RawPatchWithStubAndProtections(
+      void* target_function,
+      void* replacement_function,
+      unsigned char* preamble_stub,
+      unsigned long stub_size,
+      unsigned long* bytes_needed);
+
+  // A helper function used by RawPatchWithStubAndProtections -- it
+  // does everything but the VirtualProtect work.  Defined in
+  // preamble_patcher_with_stub.cc.
+  //
+  // @param target_function A pointer to the function that should be
+  // patched.
+  //
+  // @param replacement_function A pointer to the function that should
+  // replace the target function.  The replacement function must have
+  // exactly the same calling convention and parameters as the original
+  // function.
+  //
+  // @param preamble_stub A pointer to a buffer where the preamble stub
+  // should be copied. The size of the buffer should be sufficient to
+  // hold the preamble bytes.
+  //
+  // @param stub_size Size in bytes of the buffer allocated for the
+  // preamble_stub
+  //
+  // @param bytes_needed Pointer to a variable that receives the minimum
+  // number of bytes required for the stub.  Can be set to NULL if you're
+  // not interested.
+  //
+  // @return An error code indicating the result of patching.
+  static SideStepError RawPatchWithStub(void* target_function,
+                                        void* replacement_function,
+                                        unsigned char* preamble_stub,
+                                        unsigned long stub_size,
+                                        unsigned long* bytes_needed);
+
+
+  // A helper routine when patching, which follows jmp instructions at
+  // function addresses, to get to the "actual" function contents.
+  // This allows us to identify two functions that are at different
+  // addresses but actually resolve to the same code.
+  //
+  // @param target_function Pointer to a function.
+  //
+  // @param stop_before If, when following JMP instructions from
+  // target_function, we get to the address stop, we return
+  // immediately, the address that jumps to stop_before.
+  //
+  // @param stop_before_trampoline  When following JMP instructions from
+  // target_function, stop before a trampoline is detected.  See comment in
+  // PreamblePatcher::RawPatchWithStub for more information.  This parameter
+  // has no effect in 32-bit mode.
+  //
+  // @return Either target_function (the input parameter), or if
+  // target_function's body consists entirely of a JMP instruction,
+  // the address it JMPs to (or more precisely, the address at the end
+  // of a chain of JMPs).
+  static void* ResolveTargetImpl(unsigned char* target_function,
+                                 unsigned char* stop_before,
+                                 bool stop_before_trampoline = false);
+
+  // Helper routine that attempts to allocate a page as close (within 2GB)
+  // as possible to target.
+  //
+  // @param target    Pointer to target function.
+  //
+  // @return   Returns an address that is within 2GB of target.
+  static void* AllocPageNear(void* target);
+
+  // Helper routine that determines if a target instruction is a short
+  // conditional jump.
+  //
+  // @param target            Pointer to instruction.
+  //
+  // @param instruction_size  Size of the instruction in bytes.
+  //
+  // @return  Returns true if the instruction is a short conditional jump.
+  static bool IsShortConditionalJump(unsigned char* target,
+                                     unsigned int instruction_size);
+
+  static bool IsShortJump(unsigned char *target, unsigned int instruction_size);
+
+  // Helper routine that determines if a target instruction is a near
+  // conditional jump.
+  //
+  // @param target            Pointer to instruction.
+  //
+  // @param instruction_size  Size of the instruction in bytes.
+  //
+  // @return  Returns true if the instruction is a near conditional jump.
+  static bool IsNearConditionalJump(unsigned char* target,
+                                    unsigned int instruction_size);
+
+  // Helper routine that determines if a target instruction is a near
+  // relative jump.
+  //
+  // @param target            Pointer to instruction.
+  //
+  // @param instruction_size  Size of the instruction in bytes.
+  //
+  // @return  Returns true if the instruction is a near absolute jump.
+  static bool IsNearRelativeJump(unsigned char* target,
+                                 unsigned int instruction_size);
+
+  // Helper routine that determines if a target instruction is a near
+  // absolute call.
+  //
+  // @param target            Pointer to instruction.
+  //
+  // @param instruction_size  Size of the instruction in bytes.
+  //
+  // @return  Returns true if the instruction is a near absolute call.
+  static bool IsNearAbsoluteCall(unsigned char* target,
+                                 unsigned int instruction_size);
+
+  // Helper routine that determines if a target instruction is a near
+  // absolute call.
+  //
+  // @param target            Pointer to instruction.
+  //
+  // @param instruction_size  Size of the instruction in bytes.
+  //
+  // @return  Returns true if the instruction is a near absolute call.
+  static bool IsNearRelativeCall(unsigned char* target,
+                                 unsigned int instruction_size);
+
+  // Helper routine that determines if a target instruction is a 64-bit MOV
+  // that uses a RIP-relative displacement.
+  //
+  // @param target            Pointer to instruction.
+  //
+  // @param instruction_size  Size of the instruction in bytes.
+  //
+  // @return  Returns true if the instruction is a MOV with displacement.
+  static bool IsMovWithDisplacement(unsigned char* target,
+                                    unsigned int instruction_size);
+
+  // Helper routine that converts a short conditional jump instruction
+  // to a near conditional jump in a target buffer.  Note that the target
+  // buffer must be within 2GB of the source for the near jump to work.
+  //
+  // A short conditional jump instruction is in the format:
+  // 7x xx = Jcc rel8off
+  //
+  // @param source              Pointer to instruction.
+  //
+  // @param instruction_size    Size of the instruction.
+  //
+  // @param target              Target buffer to write the new instruction.
+  //
+  // @param target_bytes        Pointer to a buffer that contains the size
+  //                            of the target instruction, in bytes.
+  //
+  // @param target_size         Size of the target buffer.
+  //
+  // @return  Returns SIDESTEP_SUCCESS if successful, otherwise an error.
+  static SideStepError PatchShortConditionalJump(unsigned char* source,
+                                                 unsigned int instruction_size,
+                                                 unsigned char* target,
+                                                 unsigned int* target_bytes,
+                                                 unsigned int target_size);
+
+  static SideStepError PatchShortJump(unsigned char* source,
+                                      unsigned int instruction_size,
+                                      unsigned char* target,
+                                      unsigned int* target_bytes,
+                                      unsigned int target_size);
+
+  // Helper routine that converts an instruction that will convert various
+  // jump-like instructions to corresponding instructions in the target buffer.
+  // What this routine does is fix up the relative offsets contained in jump
+  // instructions to point back to the original target routine.  Like with
+  // PatchShortConditionalJump, the target buffer must be within 2GB of the
+  // source.
+  //
+  // We currently handle the following instructions:
+  //
+  // E9 xx xx xx xx     = JMP rel32off
+  // 0F 8x xx xx xx xx  = Jcc rel32off
+  // FF /2 xx xx xx xx  = CALL reg/mem32/mem64
+  // E8 xx xx xx xx     = CALL rel32off
+  //
+  // It should not be hard to update this function to support other
+  // instructions that jump to relative targets.
+  //
+  // @param source              Pointer to instruction.
+  //
+  // @param instruction_size    Size of the instruction.
+  //
+  // @param target              Target buffer to write the new instruction.
+  //
+  // @param target_bytes        Pointer to a buffer that contains the size
+  //                            of the target instruction, in bytes.
+  //
+  // @param target_size         Size of the target buffer.
+  //
+  // @return  Returns SIDESTEP_SUCCESS if successful, otherwise an error.
+  static SideStepError PatchNearJumpOrCall(unsigned char* source,
+                                           unsigned int instruction_size,
+                                           unsigned char* target,
+                                           unsigned int* target_bytes,
+                                           unsigned int target_size);
+
+  // Helper routine that patches a 64-bit MOV instruction with a RIP-relative
+  // displacement.  The target buffer must be within 2GB of the source.
+  //
+  // 48 8B 0D XX XX XX XX = MOV rel32off
+  //
+  // @param source              Pointer to instruction.
+  //
+  // @param instruction_size    Size of the instruction.
+  //
+  // @param target              Target buffer to write the new instruction.
+  //
+  // @param target_bytes        Pointer to a buffer that contains the size
+  //                            of the target instruction, in bytes.
+  //
+  // @param target_size         Size of the target buffer.
+  //
+  // @return  Returns SIDESTEP_SUCCESS if successful, otherwise an error.
+  static SideStepError PatchMovWithDisplacement(unsigned char* source,
+                                                unsigned int instruction_size,
+                                                unsigned char* target,
+                                                unsigned int* target_bytes,
+                                                unsigned int target_size);
+};
+
+};  // namespace sidestep
+
+#endif  // GOOGLE_PERFTOOLS_PREAMBLE_PATCHER_H_
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher_test.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher_test.cc
new file mode 100644
index 000000000..f3e051131
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher_test.cc
@@ -0,0 +1,368 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2011, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ * Author: Scott Francis
+ *
+ * Unit tests for PreamblePatcher
+ */
+
+#include "config_for_unittests.h"
+#include "preamble_patcher.h"
+#include "mini_disassembler.h"
+#pragma warning(push)
+#pragma warning(disable:4553)
+#include "auto_testing_hook.h"
+#pragma warning(pop)
+
+#define WIN32_LEAN_AND_MEAN
+#include 
+#include 
+
+// Turning off all optimizations for this file, since the official build's
+// "Whole program optimization" seems to cause the TestPatchUsingDynamicStub
+// test to crash with an access violation.  We debugged this and found
+// that the optimized access a register that is changed by a call to the hook
+// function.
+#pragma optimize("", off)
+
+// A convenience macro to avoid a lot of casting in the tests.
+// I tried to make this a templated function, but windows complained:
+//     error C2782: 'sidestep::SideStepError `anonymous-namespace'::Unpatch(T,T,T *)' : template parameter 'T' is ambiguous
+//        could be 'int (int)'
+//        or       'int (__cdecl *)(int)'
+// My life isn't long enough to try to figure out how to fix this.
+#define UNPATCH(target_function, replacement_function, original_function_stub) \
+  sidestep::PreamblePatcher::Unpatch((void*)(target_function),          \
+                                     (void*)(replacement_function),     \
+                                     (void*)(original_function))
+
+namespace {
+
+// Function for testing - this is what we patch
+//
+// NOTE:  Because of the way the compiler optimizes this function in
+// release builds, we need to use a different input value every time we
+// call it within a function, otherwise the compiler will just reuse the
+// last calculated incremented value.
+int __declspec(noinline) IncrementNumber(int i) {
+#ifdef _M_X64
+  __int64 i2 = i + 1;
+  return (int) i2;
+#else
+   return i + 1;
+#endif
+}
+
+extern "C" int TooShortFunction(int);
+
+extern "C" int JumpShortCondFunction(int);
+
+extern "C" int JumpNearCondFunction(int);
+
+extern "C" int JumpAbsoluteFunction(int);
+
+extern "C" int CallNearRelativeFunction(int);
+
+typedef int (*IncrementingFunc)(int);
+IncrementingFunc original_function = NULL;
+
+int HookIncrementNumber(int i) {
+  SIDESTEP_ASSERT(original_function != NULL);
+  int incremented_once = original_function(i);
+  return incremented_once + 1;
+}
+
+// For the AutoTestingHook test, we can't use original_function, because
+// all that is encapsulated.
+// This function "increments" by 10, just to set it apart from the other
+// functions.
+int __declspec(noinline) AutoHookIncrementNumber(int i) {
+  return i + 10;
+}
+
+};  // namespace
+
+namespace sidestep {
+
+bool TestDisassembler() {
+   unsigned int instruction_size = 0;
+   sidestep::MiniDisassembler disassembler;
+   void * target = reinterpret_cast(IncrementNumber);
+   void * new_target = PreamblePatcher::ResolveTarget(target);
+   if (target != new_target)
+      target = new_target;
+
+   while (1) {
+      sidestep::InstructionType instructionType = disassembler.Disassemble(
+         reinterpret_cast(target) + instruction_size,
+         instruction_size);
+      if (sidestep::IT_RETURN == instructionType) {
+         return true;
+      }
+   }
+}
+
+bool TestPatchWithLongJump() {
+  original_function = NULL;
+  void *p = ::VirtualAlloc(reinterpret_cast(0x0000020000000000), 4096,
+                           MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);
+  SIDESTEP_EXPECT_TRUE(p != NULL);
+  memset(p, 0xcc, 4096);
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       sidestep::PreamblePatcher::Patch(IncrementNumber,
+                                                        (IncrementingFunc) p,
+                                                        &original_function));
+  SIDESTEP_ASSERT((*original_function)(1) == 2);
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       UNPATCH(IncrementNumber,
+                               (IncrementingFunc)p,
+                               original_function));
+  ::VirtualFree(p, 0, MEM_RELEASE);
+  return true;
+}
+
+bool TestPatchWithPreambleShortCondJump() {
+  original_function = NULL;
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       sidestep::PreamblePatcher::Patch(JumpShortCondFunction,
+                                                        HookIncrementNumber,
+                                                        &original_function));
+  (*original_function)(1);
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       UNPATCH(JumpShortCondFunction,
+                               (void*)HookIncrementNumber,
+                               original_function));
+  return true;
+}
+
+bool TestPatchWithPreambleNearRelativeCondJump() {
+  original_function = NULL;
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       sidestep::PreamblePatcher::Patch(JumpNearCondFunction,
+                                                        HookIncrementNumber,
+                                                        &original_function));
+  (*original_function)(0);
+  (*original_function)(1);
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       UNPATCH(JumpNearCondFunction,
+                               HookIncrementNumber,
+                               original_function));
+  return true;
+}
+
+bool TestPatchWithPreambleAbsoluteJump() {
+  original_function = NULL;
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       sidestep::PreamblePatcher::Patch(JumpAbsoluteFunction,
+                                                        HookIncrementNumber,
+                                                        &original_function));
+  (*original_function)(0);
+  (*original_function)(1);
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       UNPATCH(JumpAbsoluteFunction,
+                               HookIncrementNumber,
+                               original_function));
+  return true;
+}
+
+bool TestPatchWithPreambleNearRelativeCall() {
+  original_function = NULL;
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       sidestep::PreamblePatcher::Patch(
+                                                    CallNearRelativeFunction,
+                                                    HookIncrementNumber,
+                                                    &original_function));
+  (*original_function)(0);
+  (*original_function)(1);
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       UNPATCH(CallNearRelativeFunction,
+                               HookIncrementNumber,
+                               original_function));
+  return true;
+}
+
+bool TestPatchUsingDynamicStub() {
+  original_function = NULL;
+  SIDESTEP_EXPECT_TRUE(IncrementNumber(1) == 2);
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       sidestep::PreamblePatcher::Patch(IncrementNumber,
+                                                        HookIncrementNumber,
+                                                        &original_function));
+  SIDESTEP_EXPECT_TRUE(original_function);
+  SIDESTEP_EXPECT_TRUE(IncrementNumber(2) == 4);
+  SIDESTEP_EXPECT_TRUE(original_function(3) == 4);
+
+  // Clearbox test to see that the function has been patched.
+  sidestep::MiniDisassembler disassembler;
+  unsigned int instruction_size = 0;
+  SIDESTEP_EXPECT_TRUE(sidestep::IT_JUMP == disassembler.Disassemble(
+                           reinterpret_cast(IncrementNumber),
+                           instruction_size));
+
+  // Since we patched IncrementNumber, its first statement is a
+  // jmp to the hook function.  So verify that we now can not patch
+  // IncrementNumber because it starts with a jump.
+#if 0
+  IncrementingFunc dummy = NULL;
+  // TODO(joi@chromium.org): restore this test once flag is added to
+  // disable JMP following
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_JUMP_INSTRUCTION ==
+                       sidestep::PreamblePatcher::Patch(IncrementNumber,
+                                                        HookIncrementNumber,
+                                                        &dummy));
+
+  // This test disabled because code in preamble_patcher_with_stub.cc
+  // asserts before returning the error code -- so there is no way
+  // to get an error code here, in debug build.
+  dummy = NULL;
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_FUNCTION_TOO_SMALL ==
+                       sidestep::PreamblePatcher::Patch(TooShortFunction,
+                                                        HookIncrementNumber,
+                                                        &dummy));
+#endif
+
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       UNPATCH(IncrementNumber,
+                               HookIncrementNumber,
+                               original_function));
+  return true;
+}
+
+bool PatchThenUnpatch() {
+  original_function = NULL;
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       sidestep::PreamblePatcher::Patch(IncrementNumber,
+                                                        HookIncrementNumber,
+                                                        &original_function));
+  SIDESTEP_EXPECT_TRUE(original_function);
+  SIDESTEP_EXPECT_TRUE(IncrementNumber(1) == 3);
+  SIDESTEP_EXPECT_TRUE(original_function(2) == 3);
+
+  SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS ==
+                       UNPATCH(IncrementNumber,
+                               HookIncrementNumber,
+                               original_function));
+  original_function = NULL;
+  SIDESTEP_EXPECT_TRUE(IncrementNumber(3) == 4);
+
+  return true;
+}
+
+bool AutoTestingHookTest() {
+  SIDESTEP_EXPECT_TRUE(IncrementNumber(1) == 2);
+
+  // Inner scope, so we can test what happens when the AutoTestingHook
+  // goes out of scope
+  {
+    AutoTestingHook hook = MakeTestingHook(IncrementNumber,
+                                           AutoHookIncrementNumber);
+    (void) hook;
+    SIDESTEP_EXPECT_TRUE(IncrementNumber(2) == 12);
+  }
+  SIDESTEP_EXPECT_TRUE(IncrementNumber(3) == 4);
+
+  return true;
+}
+
+bool AutoTestingHookInContainerTest() {
+  SIDESTEP_EXPECT_TRUE(IncrementNumber(1) == 2);
+
+  // Inner scope, so we can test what happens when the AutoTestingHook
+  // goes out of scope
+  {
+    AutoTestingHookHolder hook(MakeTestingHookHolder(IncrementNumber,
+                                                     AutoHookIncrementNumber));
+    (void) hook;
+    SIDESTEP_EXPECT_TRUE(IncrementNumber(2) == 12);
+  }
+  SIDESTEP_EXPECT_TRUE(IncrementNumber(3) == 4);
+
+  return true;
+}
+
+bool TestPreambleAllocation() {
+  __int64 diff = 0;
+  void* p1 = reinterpret_cast(0x110000000);
+  void* p2 = reinterpret_cast(0x810000000);
+  unsigned char* b1 = PreamblePatcher::AllocPreambleBlockNear(p1);
+  SIDESTEP_EXPECT_TRUE(b1 != NULL);
+  diff = reinterpret_cast<__int64>(p1) - reinterpret_cast<__int64>(b1);
+  // Ensure blocks are within 2GB
+  SIDESTEP_EXPECT_TRUE(diff <= INT_MAX && diff >= INT_MIN);
+  unsigned char* b2 = PreamblePatcher::AllocPreambleBlockNear(p2);
+  SIDESTEP_EXPECT_TRUE(b2 != NULL);
+  diff = reinterpret_cast<__int64>(p2) - reinterpret_cast<__int64>(b2);
+  SIDESTEP_EXPECT_TRUE(diff <= INT_MAX && diff >= INT_MIN);
+
+  // Ensure we're reusing free blocks
+  unsigned char* b3 = b1;
+  unsigned char* b4 = b2;
+  PreamblePatcher::FreePreambleBlock(b1);
+  PreamblePatcher::FreePreambleBlock(b2);
+  b1 = PreamblePatcher::AllocPreambleBlockNear(p1);
+  SIDESTEP_EXPECT_TRUE(b1 == b3);
+  b2 = PreamblePatcher::AllocPreambleBlockNear(p2);
+  SIDESTEP_EXPECT_TRUE(b2 == b4);
+  PreamblePatcher::FreePreambleBlock(b1);
+  PreamblePatcher::FreePreambleBlock(b2);
+
+  return true;
+}
+
+bool UnitTests() {
+  return TestPatchWithPreambleNearRelativeCall() &&
+      TestPatchWithPreambleAbsoluteJump() &&
+      TestPatchWithPreambleNearRelativeCondJump() &&
+      TestPatchWithPreambleShortCondJump() &&
+      TestDisassembler() && TestPatchWithLongJump() &&
+      TestPatchUsingDynamicStub() && PatchThenUnpatch() &&
+      AutoTestingHookTest() && AutoTestingHookInContainerTest() &&
+      TestPreambleAllocation();
+}
+
+};  // namespace sidestep
+
+int safe_vsnprintf(char *str, size_t size, const char *format, va_list ap) {
+  if (size == 0)        // not even room for a \0?
+    return -1;          // not what C99 says to do, but what windows does
+  str[size-1] = '\0';
+  return _vsnprintf(str, size-1, format, ap);
+}
+
+int _tmain(int argc, _TCHAR* argv[])
+{
+  bool ret = sidestep::UnitTests();
+  printf("%s\n", ret ? "PASS" : "FAIL");
+  return ret ? 0 : -1;
+}
+
+#pragma optimize("", on)
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher_with_stub.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher_with_stub.cc
new file mode 100644
index 000000000..d2c896c90
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/preamble_patcher_with_stub.cc
@@ -0,0 +1,302 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+/* Copyright (c) 2007, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ * Author: Joi Sigurdsson
+ * Author: Scott Francis
+ *
+ * Implementation of PreamblePatcher
+ */
+
+#include "preamble_patcher.h"
+
+#include "mini_disassembler.h"
+
+// Definitions of assembly statements we need
+#define ASM_JMP32REL 0xE9
+#define ASM_INT3 0xCC
+#define ASM_NOP 0x90
+// X64 opcodes
+#define ASM_MOVRAX_IMM 0xB8
+#define ASM_REXW 0x48
+#define ASM_JMP 0xFF
+#define ASM_JMP_RAX 0xE0
+#define ASM_PUSH 0x68
+#define ASM_RET 0xC3
+
+namespace sidestep {
+
+SideStepError PreamblePatcher::RawPatchWithStub(
+    void* target_function,
+    void* replacement_function,
+    unsigned char* preamble_stub,
+    unsigned long stub_size,
+    unsigned long* bytes_needed) {
+  if ((NULL == target_function) ||
+      (NULL == replacement_function) ||
+      (NULL == preamble_stub)) {
+    SIDESTEP_ASSERT(false &&
+                    "Invalid parameters - either pTargetFunction or "
+                    "pReplacementFunction or pPreambleStub were NULL.");
+    return SIDESTEP_INVALID_PARAMETER;
+  }
+
+  // TODO(V7:joi) Siggi and I just had a discussion and decided that both
+  // patching and unpatching are actually unsafe.  We also discussed a
+  // method of making it safe, which is to freeze all other threads in the
+  // process, check their thread context to see if their eip is currently
+  // inside the block of instructions we need to copy to the stub, and if so
+  // wait a bit and try again, then unfreeze all threads once we've patched.
+  // Not implementing this for now since we're only using SideStep for unit
+  // testing, but if we ever use it for production code this is what we
+  // should do.
+  //
+  // NOTE: Stoyan suggests we can write 8 or even 10 bytes atomically using
+  // FPU instructions, and on newer processors we could use cmpxchg8b or
+  // cmpxchg16b. So it might be possible to do the patching/unpatching
+  // atomically and avoid having to freeze other threads.  Note though, that
+  // doing it atomically does not help if one of the other threads happens
+  // to have its eip in the middle of the bytes you change while you change
+  // them.
+  unsigned char* target = reinterpret_cast(target_function);
+  unsigned int required_trampoline_bytes = 0;
+  const unsigned int kRequiredStubJumpBytes = 5;
+  const unsigned int kRequiredTargetPatchBytes = 5;
+
+  // Initialize the stub with INT3's just in case.
+  if (stub_size) {
+    memset(preamble_stub, 0xcc, stub_size);
+  }
+  if (kIs64BitBinary) {
+    // In 64-bit mode JMP instructions are always relative to RIP.  If the
+    // replacement - target offset is > 2GB, we can't JMP to the replacement
+    // function.  In this case, we're going to use a trampoline - that is,
+    // we're going to do a relative jump to a small chunk of code in the stub
+    // that will then do the absolute jump to the replacement function.  By
+    // doing this, we only need to patch 5 bytes in the target function, as
+    // opposed to patching 12 bytes if we were to do an absolute jump.
+    //
+    // Note that the first byte of the trampoline is a NOP instruction.  This
+    // is used as a trampoline signature that will be detected when unpatching
+    // the function.
+    //
+    // jmp 
+    //
+    // trampoline:
+    //    nop
+    //    mov rax, 
+    //    jmp rax
+    //
+    __int64 replacement_target_offset = reinterpret_cast<__int64>(
+        replacement_function) - reinterpret_cast<__int64>(target) - 5;
+    if (replacement_target_offset > INT_MAX
+        || replacement_target_offset < INT_MIN) {
+      // The stub needs to be within 2GB of the target for the trampoline to
+      // work!
+      __int64 trampoline_offset = reinterpret_cast<__int64>(preamble_stub)
+          - reinterpret_cast<__int64>(target) - 5;
+      if (trampoline_offset > INT_MAX || trampoline_offset < INT_MIN) {
+        // We're screwed.
+        SIDESTEP_ASSERT(false
+                       && "Preamble stub is too far from target to patch.");
+        return SIDESTEP_UNEXPECTED;
+      }
+      required_trampoline_bytes = 13;
+    }
+  }
+
+  // Let's disassemble the preamble of the target function to see if we can
+  // patch, and to see how much of the preamble we need to take.  We need 5
+  // bytes for our jmp instruction, so let's find the minimum number of
+  // instructions to get 5 bytes.
+  MiniDisassembler disassembler;
+  unsigned int preamble_bytes = 0;
+  unsigned int stub_bytes = 0;
+  while (preamble_bytes < kRequiredTargetPatchBytes) {
+    unsigned int cur_bytes = 0;
+    InstructionType instruction_type =
+        disassembler.Disassemble(target + preamble_bytes, cur_bytes);
+    if (IT_JUMP == instruction_type) {
+      unsigned int jump_bytes = 0;
+      SideStepError jump_ret = SIDESTEP_JUMP_INSTRUCTION;
+      if (IsShortConditionalJump(target + preamble_bytes, cur_bytes)) {
+        jump_ret = PatchShortConditionalJump(target + preamble_bytes, cur_bytes,
+                                             preamble_stub + stub_bytes,
+                                             &jump_bytes,
+                                             stub_size - stub_bytes);
+      } else if (IsShortJump(target + preamble_bytes, cur_bytes)) {
+        jump_ret = PatchShortJump(target + preamble_bytes, cur_bytes,
+                                  preamble_stub + stub_bytes,
+                                  &jump_bytes,
+                                  stub_size - stub_bytes);
+      } else if (IsNearConditionalJump(target + preamble_bytes, cur_bytes) ||
+                 IsNearRelativeJump(target + preamble_bytes, cur_bytes) ||
+                 IsNearAbsoluteCall(target + preamble_bytes, cur_bytes) ||
+                 IsNearRelativeCall(target + preamble_bytes, cur_bytes)) {
+         jump_ret = PatchNearJumpOrCall(target + preamble_bytes, cur_bytes,
+                                        preamble_stub + stub_bytes, &jump_bytes,
+                                        stub_size - stub_bytes);
+      }
+      if (jump_ret != SIDESTEP_SUCCESS) {
+        SIDESTEP_ASSERT(false &&
+                        "Unable to patch because there is an unhandled branch "
+                        "instruction in the initial preamble bytes.");
+        return SIDESTEP_JUMP_INSTRUCTION;
+      }
+      stub_bytes += jump_bytes;
+    } else if (IT_RETURN == instruction_type) {
+      SIDESTEP_ASSERT(false &&
+                      "Unable to patch because function is too short");
+      return SIDESTEP_FUNCTION_TOO_SMALL;
+    } else if (IT_GENERIC == instruction_type) {
+      if (IsMovWithDisplacement(target + preamble_bytes, cur_bytes)) {
+        unsigned int mov_bytes = 0;
+        if (PatchMovWithDisplacement(target + preamble_bytes, cur_bytes,
+                                     preamble_stub + stub_bytes, &mov_bytes,
+                                     stub_size - stub_bytes)
+            != SIDESTEP_SUCCESS) {
+          return SIDESTEP_UNSUPPORTED_INSTRUCTION;
+        }
+        stub_bytes += mov_bytes;
+      } else {
+        memcpy(reinterpret_cast(preamble_stub + stub_bytes),
+               reinterpret_cast(target + preamble_bytes), cur_bytes);
+        stub_bytes += cur_bytes;
+      }
+    } else {
+      SIDESTEP_ASSERT(false &&
+                      "Disassembler encountered unsupported instruction "
+                      "(either unused or unknown");
+      return SIDESTEP_UNSUPPORTED_INSTRUCTION;
+    }
+    preamble_bytes += cur_bytes;
+  }
+
+  if (NULL != bytes_needed)
+    *bytes_needed = stub_bytes + kRequiredStubJumpBytes
+        + required_trampoline_bytes;
+
+  // Inv: cbPreamble is the number of bytes (at least 5) that we need to take
+  // from the preamble to have whole instructions that are 5 bytes or more
+  // in size total. The size of the stub required is cbPreamble +
+  // kRequiredStubJumpBytes (5) + required_trampoline_bytes (0 or 13)
+  if (stub_bytes + kRequiredStubJumpBytes + required_trampoline_bytes
+      > stub_size) {
+    SIDESTEP_ASSERT(false);
+    return SIDESTEP_INSUFFICIENT_BUFFER;
+  }
+
+  // Now, make a jmp instruction to the rest of the target function (minus the
+  // preamble bytes we moved into the stub) and copy it into our preamble-stub.
+  // find address to jump to, relative to next address after jmp instruction
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4244)
+#endif
+  int relative_offset_to_target_rest
+      = ((reinterpret_cast(target) + preamble_bytes) -
+         (preamble_stub + stub_bytes + kRequiredStubJumpBytes));
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+  // jmp (Jump near, relative, displacement relative to next instruction)
+  preamble_stub[stub_bytes] = ASM_JMP32REL;
+  // copy the address
+  memcpy(reinterpret_cast(preamble_stub + stub_bytes + 1),
+         reinterpret_cast(&relative_offset_to_target_rest), 4);
+
+  if (kIs64BitBinary && required_trampoline_bytes != 0) {
+    // Construct the trampoline
+    unsigned int trampoline_pos = stub_bytes + kRequiredStubJumpBytes;
+    preamble_stub[trampoline_pos] = ASM_NOP;
+    preamble_stub[trampoline_pos + 1] = ASM_REXW;
+    preamble_stub[trampoline_pos + 2] = ASM_MOVRAX_IMM;
+    memcpy(reinterpret_cast(preamble_stub + trampoline_pos + 3),
+           reinterpret_cast(&replacement_function),
+           sizeof(void *));
+    preamble_stub[trampoline_pos + 11] = ASM_JMP;
+    preamble_stub[trampoline_pos + 12] = ASM_JMP_RAX;
+
+    // Now update replacement_function to point to the trampoline
+    replacement_function = preamble_stub + trampoline_pos;
+  }
+
+  // Inv: preamble_stub points to assembly code that will execute the
+  // original function by first executing the first cbPreamble bytes of the
+  // preamble, then jumping to the rest of the function.
+
+  // Overwrite the first 5 bytes of the target function with a jump to our
+  // replacement function.
+  // (Jump near, relative, displacement relative to next instruction)
+  target[0] = ASM_JMP32REL;
+
+  // Find offset from instruction after jmp, to the replacement function.
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4244)
+#endif
+  int offset_to_replacement_function =
+      reinterpret_cast(replacement_function) -
+      reinterpret_cast(target) - 5;
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+  // complete the jmp instruction
+  memcpy(reinterpret_cast(target + 1),
+         reinterpret_cast(&offset_to_replacement_function), 4);
+
+  // Set any remaining bytes that were moved to the preamble-stub to INT3 so
+  // as not to cause confusion (otherwise you might see some strange
+  // instructions if you look at the disassembly, or even invalid
+  // instructions). Also, by doing this, we will break into the debugger if
+  // some code calls into this portion of the code.  If this happens, it
+  // means that this function cannot be patched using this patcher without
+  // further thought.
+  if (preamble_bytes > kRequiredTargetPatchBytes) {
+    memset(reinterpret_cast(target + kRequiredTargetPatchBytes),
+           ASM_INT3, preamble_bytes - kRequiredTargetPatchBytes);
+  }
+
+  // Inv: The memory pointed to by target_function now points to a relative
+  // jump instruction that jumps over to the preamble_stub.  The preamble
+  // stub contains the first stub_size bytes of the original target
+  // function's preamble code, followed by a relative jump back to the next
+  // instruction after the first cbPreamble bytes.
+  //
+  // In 64-bit mode the memory pointed to by target_function *may* point to a
+  // relative jump instruction that jumps to a trampoline which will then
+  // perform an absolute jump to the replacement function.  The preamble stub
+  // still contains the original target function's preamble code, followed by a
+  // jump back to the instructions after the first preamble bytes.
+  //
+  return SIDESTEP_SUCCESS;
+}
+
+};  // namespace sidestep
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/shortproc.asm b/trunk/3rdparty/gperftools-2-fit/src/windows/shortproc.asm
new file mode 100644
index 000000000..7e8e3d783
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/shortproc.asm
@@ -0,0 +1,169 @@
+; Copyright (c) 2011, Google Inc.
+; All rights reserved.
+; 
+; Redistribution and use in source and binary forms, with or without
+; modification, are permitted provided that the following conditions are
+; met:
+; 
+;     * Redistributions of source code must retain the above copyright
+; notice, this list of conditions and the following disclaimer.
+;     * Redistributions in binary form must reproduce the above
+; copyright notice, this list of conditions and the following disclaimer
+; in the documentation and/or other materials provided with the
+; distribution.
+;     * Neither the name of Google Inc. nor the names of its
+; contributors may be used to endorse or promote products derived from
+; this software without specific prior written permission.
+; 
+; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+;
+; ---
+; Author: Scott Francis
+;
+; Unit tests for PreamblePatcher
+ 
+.MODEL small
+ 
+.CODE
+
+TooShortFunction PROC
+	ret
+TooShortFunction ENDP
+
+JumpShortCondFunction PROC
+	test cl, 1
+	jnz jumpspot
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+	int 3
+jumpspot:
+	nop
+	nop
+	nop
+	nop
+	mov rax, 1
+	ret
+JumpShortCondFunction ENDP
+
+JumpNearCondFunction PROC
+	test cl, 1
+	jnz jumpspot
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+jumpspot:
+	nop
+	nop
+	mov rax, 1
+	ret
+JumpNearCondFunction ENDP
+
+JumpAbsoluteFunction PROC
+	test cl, 1
+	jmp jumpspot
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+jumpspot:
+	nop
+	nop
+	mov rax, 1
+	ret
+JumpAbsoluteFunction ENDP
+
+CallNearRelativeFunction PROC
+	test cl, 1
+	call TooShortFunction
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	mov rdx, 0ffff1111H
+	nop
+	nop
+	nop
+	ret
+CallNearRelativeFunction ENDP
+
+END
diff --git a/trunk/3rdparty/gperftools-2-fit/src/windows/system-alloc.cc b/trunk/3rdparty/gperftools-2-fit/src/windows/system-alloc.cc
new file mode 100644
index 000000000..bdd03921d
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/src/windows/system-alloc.cc
@@ -0,0 +1,205 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2013, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// ---
+// Author: Petr Hosek
+
+#ifndef _WIN32
+# error You should only be including windows/system-alloc.cc in a windows environment!
+#endif
+
+#include 
+#include 
+#include  // std::min
+#include 
+#include "base/logging.h"
+#include "base/spinlock.h"
+#include "internal_logging.h"
+#include "system-alloc.h"
+
+static SpinLock spinlock(SpinLock::LINKER_INITIALIZED);
+
+// The current system allocator declaration
+SysAllocator* tcmalloc_sys_alloc = NULL;
+// Number of bytes taken from system.
+size_t TCMalloc_SystemTaken = 0;
+
+class VirtualSysAllocator : public SysAllocator {
+public:
+  VirtualSysAllocator() : SysAllocator() {
+  }
+  void* Alloc(size_t size, size_t *actual_size, size_t alignment);
+};
+static char virtual_space[sizeof(VirtualSysAllocator)];
+
+// This is mostly like MmapSysAllocator::Alloc, except it does these weird
+// munmap's in the middle of the page, which is forbidden in windows.
+void* VirtualSysAllocator::Alloc(size_t size, size_t *actual_size,
+                                 size_t alignment) {
+  // Align on the pagesize boundary
+  const int pagesize = getpagesize();
+  if (alignment < pagesize) alignment = pagesize;
+  size = ((size + alignment - 1) / alignment) * alignment;
+
+  // Report the total number of bytes the OS actually delivered.  This might be
+  // greater than |size| because of alignment concerns.  The full size is
+  // necessary so that adjacent spans can be coalesced.
+  // TODO(antonm): proper processing of alignments
+  // in actual_size and decommitting.
+  if (actual_size) {
+    *actual_size = size;
+  }
+
+  // We currently do not support alignments larger than the pagesize or
+  // alignments that are not multiples of the pagesize after being floored.
+  // If this ability is needed it can be done by the caller (assuming it knows
+  // the page size).
+  assert(alignment <= pagesize);
+
+  void* result = VirtualAlloc(0, size,
+                              MEM_COMMIT|MEM_RESERVE, PAGE_READWRITE);
+  if (result == NULL)
+    return NULL;
+
+  // If the result is not aligned memory fragmentation will result which can
+  // lead to pathological memory use.
+  assert((reinterpret_cast(result) & (alignment - 1)) == 0);
+
+  return result;
+}
+
+#ifdef _MSC_VER
+
+extern "C" SysAllocator* tc_get_sysalloc_override(SysAllocator *def);
+extern "C" SysAllocator* tc_get_sysalloc_default(SysAllocator *def)
+{
+  return def;
+}
+
+#if defined(_M_IX86)
+#pragma comment(linker, "/alternatename:_tc_get_sysalloc_override=_tc_get_sysalloc_default")
+#elif defined(_M_X64)
+#pragma comment(linker, "/alternatename:tc_get_sysalloc_override=tc_get_sysalloc_default")
+#endif
+
+#else // !_MSC_VER
+
+extern "C" ATTRIBUTE_NOINLINE
+SysAllocator* tc_get_sysalloc_override(SysAllocator *def)
+{
+  return def;
+}
+
+#endif
+
+static bool system_alloc_inited = false;
+void InitSystemAllocators(void) {
+  VirtualSysAllocator *alloc = new (virtual_space) VirtualSysAllocator();
+  tcmalloc_sys_alloc = tc_get_sysalloc_override(alloc);
+}
+
+extern PERFTOOLS_DLL_DECL
+void* TCMalloc_SystemAlloc(size_t size, size_t *actual_size,
+			   size_t alignment) {
+  SpinLockHolder lock_holder(&spinlock);
+
+  if (!system_alloc_inited) {
+    InitSystemAllocators();
+    system_alloc_inited = true;
+  }
+
+  void* result = tcmalloc_sys_alloc->Alloc(size, actual_size, alignment);
+  if (result != NULL) {
+    if (actual_size) {
+      TCMalloc_SystemTaken += *actual_size;
+    } else {
+      TCMalloc_SystemTaken += size;
+    }
+  }
+  return result;
+}
+
+extern PERFTOOLS_DLL_DECL
+bool TCMalloc_SystemRelease(void* start, size_t length) {
+  if (VirtualFree(start, length, MEM_DECOMMIT))
+    return true;
+
+  // The decommit may fail if the memory region consists of allocations
+  // from more than one call to VirtualAlloc.  In this case, fall back to
+  // using VirtualQuery to retrieve the allocation boundaries and decommit
+  // them each individually.
+
+  char* ptr = static_cast(start);
+  char* end = ptr + length;
+  MEMORY_BASIC_INFORMATION info;
+  while (ptr < end) {
+    size_t resultSize = VirtualQuery(ptr, &info, sizeof(info));
+    assert(resultSize == sizeof(info));
+    size_t decommitSize = std::min(info.RegionSize, end - ptr);
+    BOOL success = VirtualFree(ptr, decommitSize, MEM_DECOMMIT);
+    assert(success == TRUE);
+    ptr += decommitSize;
+  }
+
+  return true;
+}
+
+extern PERFTOOLS_DLL_DECL
+void TCMalloc_SystemCommit(void* start, size_t length) {
+  if (VirtualAlloc(start, length, MEM_COMMIT, PAGE_READWRITE) == start)
+    return;
+
+  // The commit may fail if the memory region consists of allocations
+  // from more than one call to VirtualAlloc.  In this case, fall back to
+  // using VirtualQuery to retrieve the allocation boundaries and commit them
+  // each individually.
+
+  char* ptr = static_cast(start);
+  char* end = ptr + length;
+  MEMORY_BASIC_INFORMATION info;
+  while (ptr < end) {
+    size_t resultSize = VirtualQuery(ptr, &info, sizeof(info));
+    assert(resultSize == sizeof(info));
+
+    size_t commitSize = std::min(info.RegionSize, end - ptr);
+    void* newAddress = VirtualAlloc(ptr, commitSize, MEM_COMMIT,
+                                    PAGE_READWRITE);
+    assert(newAddress == ptr);
+    ptr += commitSize;
+  }
+}
+
+bool RegisterSystemAllocator(SysAllocator *allocator, int priority) {
+  return false;   // we don't allow registration on windows, right now
+}
+
+void DumpSystemAllocatorStats(TCMalloc_Printer* printer) {
+  // We don't dump stats on windows, right now
+}
diff --git a/trunk/3rdparty/gperftools-2-fit/test-driver b/trunk/3rdparty/gperftools-2-fit/test-driver
new file mode 100755
index 000000000..9759384aa
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/test-driver
@@ -0,0 +1,150 @@
+#! /bin/sh
+# test-driver - basic testsuite driver script.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 2011-2020 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see .
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to  or send patches to
+# .
+
+# Make unconditional expansion of undefined variables an error.  This
+# helps a lot in preventing typo-related bugs.
+set -u
+
+usage_error ()
+{
+  echo "$0: $*" >&2
+  print_usage >&2
+  exit 2
+}
+
+print_usage ()
+{
+  cat <$log_file 2>&1
+estatus=$?
+
+if test $enable_hard_errors = no && test $estatus -eq 99; then
+  tweaked_estatus=1
+else
+  tweaked_estatus=$estatus
+fi
+
+case $tweaked_estatus:$expect_failure in
+  0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
+  0:*)   col=$grn res=PASS  recheck=no  gcopy=no;;
+  77:*)  col=$blu res=SKIP  recheck=no  gcopy=yes;;
+  99:*)  col=$mgn res=ERROR recheck=yes gcopy=yes;;
+  *:yes) col=$lgn res=XFAIL recheck=no  gcopy=yes;;
+  *:*)   col=$red res=FAIL  recheck=yes gcopy=yes;;
+esac
+
+# Report the test outcome and exit status in the logs, so that one can
+# know whether the test passed or failed simply by looking at the '.log'
+# file, without the need of also peaking into the corresponding '.trs'
+# file (automake bug#11814).
+echo "$res $test_name (exit status: $estatus)" >>$log_file
+
+# Report outcome to console.
+echo "${col}${res}${std}: $test_name"
+
+# Register the test result, and other relevant metadata.
+echo ":test-result: $res" > $trs_file
+echo ":global-test-result: $res" >> $trs_file
+echo ":recheck: $recheck" >> $trs_file
+echo ":copy-in-global-log: $gcopy" >> $trs_file
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/trunk/3rdparty/gperftools-2-fit/vsprojects/addr2line-pdb/addr2line-pdb.vcxproj b/trunk/3rdparty/gperftools-2-fit/vsprojects/addr2line-pdb/addr2line-pdb.vcxproj
new file mode 100644
index 000000000..4801616be
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/vsprojects/addr2line-pdb/addr2line-pdb.vcxproj
@@ -0,0 +1,191 @@
+
+
+  
+    
+      Debug
+      Win32
+    
+    
+      Debug
+      x64
+    
+    
+      Release-Override
+      Win32
+    
+    
+      Release-Override
+      x64
+    
+    
+      Release-Patch
+      Win32
+    
+    
+      Release-Patch
+      x64
+    
+  
+  
+    true
+    {81CA712E-90B8-4AE5-9E89-5B436578D6DA}
+    Win32Proj
+  
+  
+  
+    Application
+    false
+    v140
+    Unicode
+    true
+  
+  
+    Application
+    false
+    v140
+    Unicode
+    true
+  
+  
+    Application
+    false
+    v140
+    Unicode
+    true
+  
+  
+    Application
+    false
+    v140
+    Unicode
+    true
+  
+  
+    Application
+    true
+    v140
+    Unicode
+  
+  
+    Application
+    true
+    v140
+    Unicode
+  
+  
+  
+  
+  
+    
+  
+  
+    
+  
+  
+    
+  
+  
+    
+  
+  
+    
+  
+  
+    
+  
+  
+  
+    <_ProjectFileVersion>14.0.25431.1
+  
+  
+  
+  
+  
+  
+  
+    
+      _DEBUG;%(PreprocessorDefinitions)
+      Level3
+      true
+    
+    
+      Console
+      dbghelp.lib;%(AdditionalDependencies)
+    
+  
+  
+    
+      _DEBUG;%(PreprocessorDefinitions)
+      Level3
+      true
+    
+    
+      Console
+      dbghelp.lib;%(AdditionalDependencies)
+    
+  
+  
+    
+      NDEBUG;%(PreprocessorDefinitions)
+      Level3
+      false
+      true
+    
+    
+      Console
+      true
+      true
+      dbghelp.lib;%(AdditionalDependencies)
+    
+  
+  
+    
+      NDEBUG;%(PreprocessorDefinitions)
+      Level3
+      MultiThreaded
+      false
+      true
+    
+    
+      Console
+      true
+      true
+      dbghelp.lib;%(AdditionalDependencies)
+    
+  
+  
+    
+      NDEBUG;%(PreprocessorDefinitions)
+      Level3
+      false
+      true
+    
+    
+      Console
+      true
+      true
+      dbghelp.lib;%(AdditionalDependencies)
+    
+  
+  
+    
+      NDEBUG;%(PreprocessorDefinitions)
+      Level3
+      MultiThreaded
+      false
+      true
+    
+    
+      Console
+      true
+      true
+      dbghelp.lib;%(AdditionalDependencies)
+    
+  
+  
+    
+  
+  
+  
+  
+
\ No newline at end of file
diff --git a/trunk/3rdparty/gperftools-2-fit/vsprojects/addressmap_unittest/addressmap_unittest.vcxproj b/trunk/3rdparty/gperftools-2-fit/vsprojects/addressmap_unittest/addressmap_unittest.vcxproj
new file mode 100644
index 000000000..de44f7417
--- /dev/null
+++ b/trunk/3rdparty/gperftools-2-fit/vsprojects/addressmap_unittest/addressmap_unittest.vcxproj
@@ -0,0 +1,229 @@
+
+
+  
+    
+      Debug
+      Win32
+    
+    
+      Debug
+      x64
+    
+    
+      Release-Override
+      Win32
+    
+    
+      Release-Override
+      x64
+    
+    
+      Release-Patch
+      Win32
+    
+    
+      Release-Patch
+      x64
+    
+  
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