f9b58c5198
Since we introduced the API to set signal handler and print a stacktrace, we should avoid glibc's backtrace, which may call malloc. Basically, we choose the way to produce a stacktrace as same as perftools. Also, I removed GetStackFrames, which is not used and not implemented with glibc. git-svn-id: https://google-glog.googlecode.com/svn/trunk@16 eb4d4688-79bd-11dd-afb4-1d65580434c0
34 lines
907 B
C
34 lines
907 B
C
// Copyright 2000 - 2007 Google Inc.
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// All rights reserved.
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//
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// Portable implementation - just use glibc
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//
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// Note: The glibc implementation may cause a call to malloc.
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// This can cause a deadlock in HeapProfiler.
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#include <execinfo.h>
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#include <string.h>
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#include "stacktrace.h"
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_START_GOOGLE_NAMESPACE_
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// If you change this function, also change GetStackFrames below.
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int GetStackTrace(void** result, int max_depth, int skip_count) {
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static const int kStackLength = 64;
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void * stack[kStackLength];
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int size;
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size = backtrace(stack, kStackLength);
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skip_count++; // we want to skip the current frame as well
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int result_count = size - skip_count;
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if (result_count < 0)
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result_count = 0;
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if (result_count > max_depth)
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result_count = max_depth;
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for (int i = 0; i < result_count; i++)
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result[i] = stack[i + skip_count];
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return result_count;
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}
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_END_GOOGLE_NAMESPACE_
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