/thirdparty/breakpad/third_party/glog/src/stacktrace_generic-inl.h

http://github.com/tomahawk-player/tomahawk · C++ Header · 59 lines · 20 code · 5 blank · 34 comment · 3 complexity · 875dd9bf21695d807cffebf8c20236aa MD5 · raw file

  1. // Copyright (c) 2000 - 2007, Google Inc.
  2. // All rights reserved.
  3. //
  4. // Redistribution and use in source and binary forms, with or without
  5. // modification, are permitted provided that the following conditions are
  6. // met:
  7. //
  8. // * Redistributions of source code must retain the above copyright
  9. // notice, this list of conditions and the following disclaimer.
  10. // * Redistributions in binary form must reproduce the above
  11. // copyright notice, this list of conditions and the following disclaimer
  12. // in the documentation and/or other materials provided with the
  13. // distribution.
  14. // * Neither the name of Google Inc. nor the names of its
  15. // contributors may be used to endorse or promote products derived from
  16. // this software without specific prior written permission.
  17. //
  18. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29. //
  30. // Portable implementation - just use glibc
  31. //
  32. // Note: The glibc implementation may cause a call to malloc.
  33. // This can cause a deadlock in HeapProfiler.
  34. #include <execinfo.h>
  35. #include <string.h>
  36. #include "stacktrace.h"
  37. _START_GOOGLE_NAMESPACE_
  38. // If you change this function, also change GetStackFrames below.
  39. int GetStackTrace(void** result, int max_depth, int skip_count) {
  40. static const int kStackLength = 64;
  41. void * stack[kStackLength];
  42. int size;
  43. size = backtrace(stack, kStackLength);
  44. skip_count++; // we want to skip the current frame as well
  45. int result_count = size - skip_count;
  46. if (result_count < 0)
  47. result_count = 0;
  48. if (result_count > max_depth)
  49. result_count = max_depth;
  50. for (int i = 0; i < result_count; i++)
  51. result[i] = stack[i + skip_count];
  52. return result_count;
  53. }
  54. _END_GOOGLE_NAMESPACE_