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https://github.com/ossrs/srs.git
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361 lines
12 KiB
Tcl
361 lines
12 KiB
Tcl
#
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# SRT - Secure, Reliable, Transport
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# Copyright (c) 2018 Haivision Systems Inc.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#
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# API description:
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# Expected variables:
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# - options: dictionary "option-name" : "description"
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# if there's '=' in option name, it expects an argument. Otherwise it's boolean.
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# - alias: optional, you can make shortcuts to longer named options. Remember to use = in target name.
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#
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# Optional procedures:
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# - preprocess: run before command-line arguments ($argv) are reviewed
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# - postprocess: run after options are reviewed and all data filled in
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#
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# Available variables in postprocess:
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#
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# - optval (array): contains all option names with their assigned values
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# - cmakeopt (scalar): a list of all options for "cmake" command line
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# Options processed here internally, not passed to cmake
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set internal_options {
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with-compiler-prefix=<prefix> "set C/C++ toolchains <prefix>gcc and <prefix>g++"
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with-compiler-type=<name> "compiler type: gcc(default), cc, others simply add ++ for C++"
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with-srt-name=<name> "Override srt library name"
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with-haicrypt-name=<name> "Override haicrypt library name (if compiled separately)"
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}
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# Options that refer directly to variables used in CMakeLists.txt
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set cmake_options {
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cygwin-use-posix "Should the POSIX API be used for cygwin. Ignored if the system isn't cygwin. (default: OFF)"
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enable-encryption "Should encryption features be enabled (default: ON)"
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enable-c++11 "Should the c++11 parts (srt-live-transmit) be enabled (default: ON)"
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enable-apps "Should the Support Applications be Built? (default: ON)"
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enable-testing "Should developer testing applications be built (default: OFF)"
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enable-c++-deps "Extra library dependencies in srt.pc for C language (default: OFF)"
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enable-heavy-logging "Should heavy debug logging be enabled (default: OFF)"
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enable-logging "Should logging be enabled (default: ON)"
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enable-debug=<0,1,2> "Enable debug mode (0=disabled, 1=debug, 2=rel-with-debug)"
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enable-haicrypt-logging "Should logging in haicrypt be enabled (default: OFF)"
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enable-inet-pton "Set to OFF to prevent usage of inet_pton when building against modern SDKs (default: ON)"
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enable-code-coverage "Enable code coverage reporting (default: OFF)"
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enable-monotonic-clock "Enforced clock_gettime with monotonic clock on GC CV /temporary fix for #729/ (default: OFF)"
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enable-profile "Should instrument the code for profiling. Ignored for non-GNU compiler. (default: OFF)"
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enable-relative-libpath "Should applications contain relative library paths, like ../lib (default: OFF)"
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enable-shared "Should libsrt be built as a shared library (default: ON)"
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enable-static "Should libsrt be built as a static library (default: ON)"
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enable-suflip "Should suflip tool be built (default: OFF)"
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enable-getnameinfo "In-logs sockaddr-to-string should do rev-dns (default: OFF)"
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enable-unittests "Enable unit tests (default: OFF)"
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enable-thread-check "Enable #include <threadcheck.h> that implements THREAD_* macros"
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openssl-crypto-library=<filepath> "Path to a library."
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openssl-include-dir=<path> "Path to a file."
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openssl-ssl-library=<filepath> "Path to a library."
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pkg-config-executable=<filepath> "pkg-config executable"
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pthread-include-dir=<path> "Path to a file."
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pthread-library=<filepath> "Path to a library."
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use-busy-waiting "Enable more accurate sending times at a cost of potentially higher CPU load (default: OFF)"
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use-gnustl "Get c++ library/headers from the gnustl.pc"
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use-enclib "Encryption library to be used: openssl(default), gnutls, mbedtls"
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use-gnutls "DEPRECATED. Use USE_ENCLIB=openssl|gnutls|mbedtls instead"
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use-openssl-pc "Use pkg-config to find OpenSSL libraries (default: ON)"
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use-static-libstdc++ "Should use static rather than shared libstdc++ (default: OFF)"
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}
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set options $internal_options$cmake_options
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# Just example. Available in the system.
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set alias {
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--prefix --cmake-install-prefix=
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}
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proc pkg-config args {
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return [string trim [exec pkg-config {*}$args]]
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}
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proc flagval v {
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set out ""
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foreach o $v {
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lappend out [string trim [string range $o 2 en]]
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}
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return $out
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}
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set haicrypt_name ""
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set srt_name ""
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proc preprocess {} {
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# Prepare windows basic path info
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set ::CYGWIN 0
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set e [catch {exec uname -o} res]
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# We have Cygwin, if uname -o returns "cygwin" and does not fail.
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if { !$e && $res == "Cygwin" } {
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set ::CYGWIN 1
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puts "CYGWIN DETECTED"
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}
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set ::HAVE_LINUX [expr {$::tcl_platform(os) == "Linux"}]
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set ::HAVE_DARWIN [expr {$::tcl_platform(os) == "Darwin"}]
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set ::CYGWIN_USE_POSIX 0
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if { "--cygwin-use-posix" in $::optkeys } {
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set ::CYGWIN_USE_POSIX 1
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}
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set ::HAVE_WINDOWS 0
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if { $::tcl_platform(platform) == "windows" } {
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puts "WINDOWS PLATFORM detected"
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set ::HAVE_WINDOWS 1
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}
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if { $::CYGWIN && !$::CYGWIN_USE_POSIX } {
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puts "CYGWIN - MINGW enforced"
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# Make Cygwin tools see it right, to compile for MinGW
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if { "--with-compiler-prefix" ni $::optkeys } {
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set ::optval(--with-compiler-prefix) /bin/x86_64-w64-mingw32-
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}
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# Extract drive C: information
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set drive_path [exec mount -p | tail -1 | cut {-d } -f 1]
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set ::DRIVE_C $drive_path/c
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set ::HAVE_WINDOWS 1
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} else {
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# Don't check for Windows, non-Windows parts will not use it.
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set ::DRIVE_C C:
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}
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# Alias to old name --with-gnutls, which enforces using gnutls instead of openssl
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if { [info exists ::optval(--with-gnutls)] } {
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unset ::optval(--with-gnutls)
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set ::optval(--use-enclib) gnutls
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puts "WARNING: --with-gnutls is a deprecated alias to --use-enclib=gnutls, please use the latter one"
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}
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# Alias to old name --use-gnutls, which enforces using gnutls instead of openssl
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if { [info exists ::optval(--use-gnutls)] } {
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unset ::optval(--use-gnutls)
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set ::optval(--use-enclib) gnutls
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puts "WARNING: --use-gnutls is a deprecated alias to --use-enclib=gnutls, please use the latter one"
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}
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if { [info exists ::optval(--with-target-path)] } {
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set ::target_path $::optval(--with-target-path)
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unset ::optval(--with-target-path)
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puts "NOTE: Explicit target path: $::target_path"
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}
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if { "--with-srt-name" in $::optkeys } {
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set ::srt_name $::optval(--with-srt-name)
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unset ::optval(--with-srt-name)
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}
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if { "--with-haicrypt-name" in $::optkeys } {
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set ::haicrypt_name $::optval(--with-haicrypt-name)
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unset ::optval(--with-haicrypt-name)
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}
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}
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proc GetCompilerCommand {} {
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# Expect that the compiler was set through:
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# --with-compiler-prefix
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# --cmake-c[++]-compiler
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# (cmake-toolchain-file will set things up without the need to check things here)
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if { [info exists ::optval(--with-compiler-prefix)] } {
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set prefix $::optval(--with-compiler-prefix)
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return ${prefix}gcc
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}
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if { [info exists ::optval(--cmake-c-compiler)] } {
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return $::optval(--cmake-c-compiler)
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}
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if { [info exists ::optval(--cmake-c++-compiler)] } {
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return $::optval(--cmake-c++-compiler)
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}
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if { [info exists ::optval(--cmake-cxx-compiler)] } {
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return $::optval(--cmake-cxx-compiler)
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}
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puts "NOTE: Cannot obtain compiler, assuming toolchain file will do what's necessary"
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return ""
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}
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proc postprocess {} {
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set iscross 0
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# Check if there was any option that changed the toolchain. If so, don't apply any autodetection-based toolchain change.
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set all_options [array names ::optval]
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set toolchain_changed no
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foreach changer {
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--with-compiler-prefix
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--cmake-c-compiler
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--cmake-c++-compiler
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--cmake-cxx-compiler
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--cmake-toolchain-file
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} {
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if { $changer in $all_options } {
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puts "NOTE: toolchain changed by '$changer' option"
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set toolchain_changed yes
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break
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}
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}
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set cygwin_posix 0
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if { "--cygwin-use-posix" in $all_options } {
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# Will enforce OpenSSL autodetection
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set cygwin_posix 1
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}
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if { $toolchain_changed } {
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# Check characteristics of the compiler - in particular, whether the target is different
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# than the current target.
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set compiler_path ""
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set cmd [GetCompilerCommand]
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if { $cmd != "" } {
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set gcc_version [exec $cmd -v 2>@1]
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set target ""
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set compiler_path [file dirname $cmd]
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foreach l [split $gcc_version \n] {
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if { [string match Target:* $l] } {
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set target [lindex $l 1] ;# [0]Target: [1]x86_64-some-things-further
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set target_platform [lindex [split $target -] 0] ;# [0]x86_64 [1]redhat [2]linux
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break
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}
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}
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if { $target_platform == "" } {
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puts "NOTE: can't obtain target from gcc -v: $l"
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} else {
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if { $target_platform != $::tcl_platform(machine) } {
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puts "NOTE: foreign target type detected ($target)" ;# - setting CROSSCOMPILING flag"
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#lappend ::cmakeopt "-DHAVE_CROSSCOMPILER=1"
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set iscross 1
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}
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}
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}
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}
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if { $::srt_name != "" } {
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lappend ::cmakeopt "-DTARGET_srt=$::srt_name"
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}
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if { $::haicrypt_name != "" } {
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lappend ::cmakeopt "-DTARGET_haicrypt=$::haicrypt_name"
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}
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set have_openssl 0
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if { [lsearch -glob $::optkeys --openssl*] != -1 } {
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set have_openssl 1
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}
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set have_gnutls 0
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if { [lsearch -glob $::optkeys --use-gnutls] != -1 } {
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set have_gnutls 1
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}
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if { $have_openssl && $have_gnutls } {
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puts "NOTE: SSL library is exclusively selectable. Thus, --use-gnutls option will be ignored"
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set have_gnutls 0
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}
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if { $have_gnutls } {
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lappend ::cmakeopt "-DUSE_GNUTLS=ON"
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}
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if {$iscross} {
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proc check-target-path {path} {
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puts "Checking path '$path'"
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if { [file isdir $path]
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&& [file isdir $path/bin]
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&& [file isdir $path/include]
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&& ([file isdir $path/lib] || [file isdir $path/lib64]) } {
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return yes
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}
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return no
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}
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if { ![info exists ::target_path] } {
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# Try to autodetect the target path by having the basic 3 directories.
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set target_path ""
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set compiler_prefix [file dirname $compiler_path] ;# strip 'bin' directory
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puts "NOTE: no --with-target-path found, will try to autodetect at $compiler_path"
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foreach path [list $compiler_path $compiler_prefix/$target] {
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if { [check-target-path $path] } {
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set target_path $path
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puts "NOTE: target path detected: $target_path"
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break
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}
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}
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if { $target_path == "" } {
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puts "ERROR: Can't determine compiler's platform files root path (using compiler command path). Specify --with-target-path."
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exit 1
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}
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} else {
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set target_path $::target_path
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# Still, check if correct.
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if { ![check-target-path $target_path] } {
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puts "ERROR: path in --with-target-path does not contain typical subdirectories"
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exit 1
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}
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puts "NOTE: Using explicit target path: $target_path"
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}
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# Add this for cmake, should it need for something
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lappend ::cmakeopt "-DCMAKE_PREFIX_PATH=$target_path"
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# Add explicitly the path for pkg-config
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# which lib
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if { [file isdir $target_path/lib64/pkgconfig] } {
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set ::env(PKG_CONFIG_PATH) $target_path/lib64/pkgconfig
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puts "PKG_CONFIG_PATH: Found pkgconfig in lib64 for '$target_path' - using it"
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} elseif { [file isdir $target_path/lib/pkgconfig] } {
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set ::env(PKG_CONFIG_PATH) $target_path/lib/pkgconfig
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puts "PKG_CONFIG_PATH: Found pkgconfig in lib for '$target_path' - using it"
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} else {
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puts "PKG_CONFIG_PATH: NOT changed, no pkgconfig in '$target_path'"
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}
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# Otherwise don't set PKG_CONFIG_PATH and we'll see.
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}
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if { $::HAVE_DARWIN && !$toolchain_changed} {
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if { $have_gnutls } {
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# Use gnutls explicitly, as found in brew
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set er [catch {exec brew info gnutls} res]
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if { $er } {
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error "Cannot find gnutls in brew"
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}
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} else {
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# ON Darwin there's a problem with linking against the Mac-provided OpenSSL.
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# This must use brew-provided OpenSSL.
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#
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if { !$have_openssl } {
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set er [catch {exec brew info openssl} res]
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if { $er } {
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error "You must have OpenSSL installed from 'brew' tool. The standard Mac version is inappropriate."
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}
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lappend ::cmakeopt "-DOPENSSL_INCLUDE_DIR=/usr/local/opt/openssl/include"
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lappend ::cmakeopt "-DOPENSSL_LIBRARIES=/usr/local/opt/openssl/lib/libcrypto.a"
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}
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}
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}
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}
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