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llvm / libfuzzer / 1bb7642b91859e0147b4271968b1e7a292a3522a
commit1bb7642b91859e0147b4271968b1e7a292a3522a[log] [tgz]
authorKostya Serebryany <kcc@google.com>Wed Dec 06 23:35:02 2017 +0000
committerCopybara-Service <copybara-worker@google.com>Thu Mar 25 23:16:17 2021 -0700
treead9fad68724b8b369ed0d286a796a8b6192b4dad
parent728c7a8aa9d9b30f8d4f30ee7473a56231270702 [diff]
[libFuzzer] Decrease stack usage in unit tests

Summary: With 3 Dictionary objects, each containing space of ~16k DictionaryEntry objects, the MutationDispatcher object is fairly memory heavy.  On platforms with a lower default stack size, this can cause panics in FuzzerUnittest as those tests stack-allocate the MutationDispatcher.  This may be especially problematic for platforms that do not (yet) have a way to programmatically change their stack size, aside from link-time flags.  In general, it seems more prudent to use the heap for an object of this size.

Reviewers: kcc, morehouse

Reviewed By: kcc

Differential Revision: https://reviews.llvm.org/D40926

llvm-svn: 319988
GitOrigin-RevId: a97bd9a7d3bf98ce7af9cc918212470583dd7f87
1 file changed
tree: ad9fad68724b8b369ed0d286a796a8b6192b4dad
  1. afl/
  2. scripts/
  3. standalone/
  4. tests/
  5. build.sh
  6. FuzzerClangCounters.cpp
  7. FuzzerCommand.h
  8. FuzzerCorpus.h
  9. FuzzerCrossOver.cpp
  10. FuzzerDefs.h
  11. FuzzerDictionary.h
  12. FuzzerDriver.cpp
  13. FuzzerExtFunctions.def
  14. FuzzerExtFunctions.h
  15. FuzzerExtFunctionsDlsym.cpp
  16. FuzzerExtFunctionsDlsymWin.cpp
  17. FuzzerExtFunctionsWeak.cpp
  18. FuzzerExtFunctionsWeakAlias.cpp
  19. FuzzerExtraCounters.cpp
  20. FuzzerFlags.def
  21. FuzzerInterface.h
  22. FuzzerInternal.h
  23. FuzzerIO.cpp
  24. FuzzerIO.h
  25. FuzzerIOPosix.cpp
  26. FuzzerIOWindows.cpp
  27. FuzzerLoop.cpp
  28. FuzzerMain.cpp
  29. FuzzerMerge.cpp
  30. FuzzerMerge.h
  31. FuzzerMutate.cpp
  32. FuzzerMutate.h
  33. FuzzerOptions.h
  34. FuzzerRandom.h
  35. FuzzerSHA1.cpp
  36. FuzzerSHA1.h
  37. FuzzerShmem.h
  38. FuzzerShmemPosix.cpp
  39. FuzzerShmemWindows.cpp
  40. FuzzerTracePC.cpp
  41. FuzzerTracePC.h
  42. FuzzerUtil.cpp
  43. FuzzerUtil.h
  44. FuzzerUtilDarwin.cpp
  45. FuzzerUtilLinux.cpp
  46. FuzzerUtilPosix.cpp
  47. FuzzerUtilWindows.cpp
  48. FuzzerValueBitMap.h
  49. LICENSE.TXT
  50. README.txt