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llvm / libfuzzer / 70ac3f6f5bed231bfc807b18c56a59853bec3947
commit70ac3f6f5bed231bfc807b18c56a59853bec3947[log] [tgz]
authorYuanfang Chen <yuanfang.chen@sony.com>Mon Feb 10 14:31:47 2020 -0800
committerCopybara-Service <copybara-worker@google.com>Thu Mar 25 23:20:40 2021 -0700
tree9e29a92338cb3c7793ef160c1a4089613b8a5ee6
parente2d70da8b4922b2839344d78db980b1dd7daf767 [diff]
[libFuzzer] communicate through pipe to subprocess for MinimizeCrashInput

For CleanseCrashInput, discards stdout output anyway since it is not used.

These changes are to defend against aggressive PID recycle on windows to reduce the chance of contention on files.

Using pipe instead of file also workaround the problem that when the
process is spawned by llvm-lit, the aborted process keeps a handle to the
output file such that the output file can not be removed. This will
cause random test failures.

https://devblogs.microsoft.com/oldnewthing/20110107-00/?p=11803

Reviewers: kcc, vitalybuka

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D73329

GitOrigin-RevId: 85515c7fd53c0cb77ccf46eaa5246ac61ae08ee8
4 files changed
tree: 9e29a92338cb3c7793ef160c1a4089613b8a5ee6
  1. afl/
  2. dataflow/
  3. scripts/
  4. standalone/
  5. tests/
  6. build.sh
  7. FuzzedDataProvider.h
  8. FuzzerBuiltins.h
  9. FuzzerBuiltinsMsvc.h
  10. FuzzerCommand.h
  11. FuzzerCorpus.h
  12. FuzzerCrossOver.cpp
  13. FuzzerDataFlowTrace.cpp
  14. FuzzerDataFlowTrace.h
  15. FuzzerDefs.h
  16. FuzzerDictionary.h
  17. FuzzerDriver.cpp
  18. FuzzerExtFunctions.def
  19. FuzzerExtFunctions.h
  20. FuzzerExtFunctionsDlsym.cpp
  21. FuzzerExtFunctionsWeak.cpp
  22. FuzzerExtFunctionsWindows.cpp
  23. FuzzerExtraCounters.cpp
  24. FuzzerFlags.def
  25. FuzzerFork.cpp
  26. FuzzerFork.h
  27. FuzzerInterface.h
  28. FuzzerInternal.h
  29. FuzzerIO.cpp
  30. FuzzerIO.h
  31. FuzzerIOPosix.cpp
  32. FuzzerIOWindows.cpp
  33. FuzzerLoop.cpp
  34. FuzzerMain.cpp
  35. FuzzerMerge.cpp
  36. FuzzerMerge.h
  37. FuzzerMutate.cpp
  38. FuzzerMutate.h
  39. FuzzerOptions.h
  40. FuzzerRandom.h
  41. FuzzerSHA1.cpp
  42. FuzzerSHA1.h
  43. FuzzerTracePC.cpp
  44. FuzzerTracePC.h
  45. FuzzerUtil.cpp
  46. FuzzerUtil.h
  47. FuzzerUtilDarwin.cpp
  48. FuzzerUtilFuchsia.cpp
  49. FuzzerUtilLinux.cpp
  50. FuzzerUtilPosix.cpp
  51. FuzzerUtilWindows.cpp
  52. FuzzerValueBitMap.h
  53. LICENSE.TXT
  54. README.txt