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llvm / libfuzzer / 058bdcc5d22aaaa1a6d148abf5c764cf226716a1
commit058bdcc5d22aaaa1a6d148abf5c764cf226716a1[log] [tgz]
authorMax Moroz <mmoroz@chromium.org>Tue Jul 24 21:02:44 2018 +0000
committerCopybara-Service <copybara-worker@google.com>Thu Mar 25 23:17:49 2021 -0700
tree5ee1cfc2c5941b05c1f4de561f669f29a6eb3535
parentd76e2695c4ec76523667872f4abb65c3646967ce [diff]
[libFuzzer] Handle unstable edges by disregarding unstable edges

Summary:
Added a new mode within flag -handle_unstable for new unstable handling algorithm that does the following:
    When an edge is shown as unstable, copy to UnstableCounters the value 0.
    During ApplyUnstableCounters we copy back the value 0 to ModuleInline8bitCounters if the edge was unstable.

This way we would be ignoring completely features that were collected through non-determinism.
Unstable hits would be counted as if it never hit.

Reviewers: metzman, Dor1s, kcc, morehouse

Reviewed By: metzman, morehouse

Subscribers: delcypher, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D49684

llvm-svn: 337853
GitOrigin-RevId: 8db0befc6d34c6db33ce8210faccdb5da6c2f670
5 files changed
tree: 5ee1cfc2c5941b05c1f4de561f669f29a6eb3535
  1. afl/
  2. dataflow/
  3. scripts/
  4. standalone/
  5. tests/
  6. build.sh
  7. FuzzerCommand.h
  8. FuzzerCorpus.h
  9. FuzzerCrossOver.cpp
  10. FuzzerDataFlowTrace.cpp
  11. FuzzerDataFlowTrace.h
  12. FuzzerDefs.h
  13. FuzzerDictionary.h
  14. FuzzerDriver.cpp
  15. FuzzerExtFunctions.def
  16. FuzzerExtFunctions.h
  17. FuzzerExtFunctionsDlsym.cpp
  18. FuzzerExtFunctionsDlsymWin.cpp
  19. FuzzerExtFunctionsWeak.cpp
  20. FuzzerExtFunctionsWeakAlias.cpp
  21. FuzzerExtraCounters.cpp
  22. FuzzerFlags.def
  23. FuzzerInterface.h
  24. FuzzerInternal.h
  25. FuzzerIO.cpp
  26. FuzzerIO.h
  27. FuzzerIOPosix.cpp
  28. FuzzerIOWindows.cpp
  29. FuzzerLoop.cpp
  30. FuzzerMain.cpp
  31. FuzzerMerge.cpp
  32. FuzzerMerge.h
  33. FuzzerMutate.cpp
  34. FuzzerMutate.h
  35. FuzzerOptions.h
  36. FuzzerRandom.h
  37. FuzzerSHA1.cpp
  38. FuzzerSHA1.h
  39. FuzzerShmem.h
  40. FuzzerShmemFuchsia.cpp
  41. FuzzerShmemPosix.cpp
  42. FuzzerShmemWindows.cpp
  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