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83 lines
2.9 KiB
C++
83 lines
2.9 KiB
C++
// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
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// Copyright (c) 2008, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// ---
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// Author: Craig Silverstein
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//
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// This tests ReadStackTraces and ReadGrowthStackTraces. It does this
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// by doing a bunch of allocations and then calling those functions.
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// A driver shell-script can call this, and then call pprof, and
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// verify the expected output. The output is written to
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// argv[1].heap and argv[1].growth
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#include "config_for_unittests.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string>
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#include "base/logging.h"
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#include <gperftools/malloc_extension.h>
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using std::string;
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extern "C" void* AllocateAllocate() ATTRIBUTE_NOINLINE;
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extern "C" void* AllocateAllocate() {
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// The VLOG's are mostly to discourage inlining
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VLOG(1, "Allocating some more");
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void* p = malloc(10000);
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VLOG(1, "Done allocating");
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return p;
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}
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static void WriteStringToFile(const string& s, const string& filename) {
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FILE* fp = fopen(filename.c_str(), "w");
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fwrite(s.data(), 1, s.length(), fp);
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fclose(fp);
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}
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int main(int argc, char** argv) {
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if (argc < 2) {
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fprintf(stderr, "USAGE: %s <base of output files>\n", argv[0]);
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exit(1);
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}
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for (int i = 0; i < 8000; i++) {
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AllocateAllocate();
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}
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string s;
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MallocExtension::instance()->GetHeapSample(&s);
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WriteStringToFile(s, string(argv[1]) + ".heap");
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s.clear();
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MallocExtension::instance()->GetHeapGrowthStacks(&s);
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WriteStringToFile(s, string(argv[1]) + ".growth");
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return 0;
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}
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