00001 // Copyright (c) 2005, Google Inc. 00002 // All rights reserved. 00003 // 00004 // Redistribution and use in source and binary forms, with or without 00005 // modification, are permitted provided that the following conditions are 00006 // met: 00007 // 00008 // * Redistributions of source code must retain the above copyright 00009 // notice, this list of conditions and the following disclaimer. 00010 // * Redistributions in binary form must reproduce the above 00011 // copyright notice, this list of conditions and the following disclaimer 00012 // in the documentation and/or other materials provided with the 00013 // distribution. 00014 // * Neither the name of Google Inc. nor the names of its 00015 // contributors may be used to endorse or promote products derived from 00016 // this software without specific prior written permission. 00017 // 00018 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00019 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00020 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00021 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00022 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00023 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00024 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00025 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00026 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00027 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00028 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00029 00030 // --- 00031 // Author: Sanjay Ghemawat 00032 // 00033 // Portable implementation - just use glibc 00034 // 00035 // Note: The glibc implementation may cause a call to malloc. 00036 // This can cause a deadlock in HeapProfiler. 00037 // #include <execinfo.h> 00038 #include <stdlib.h> 00039 #include "google/stacktrace.h" 00040 00041 int GetStackTrace(void** result, int max_depth, int skip_count) { 00042 static const int kStackLength = 64; 00043 void * stack[kStackLength]; 00044 int size; 00045 00046 size = 0; // backtrace(stack, kStackLength); 00047 skip_count++; // we want to skip the current frame as well 00048 int result_count = size - skip_count; 00049 if (result_count < 0) 00050 result_count = 0; 00051 if (result_count > max_depth) 00052 result_count = max_depth; 00053 for (int i = 0; i < result_count; i++) 00054 result[i] = stack[i + skip_count]; 00055 00056 return result_count; 00057 }