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llvm / libfuzzer / 95283d516a7c1f6216b9d6e26ffd82e957cdeffa
commit95283d516a7c1f6216b9d6e26ffd82e957cdeffa[log] [tgz]
authorAlex Shlyapnikov <alekseys@google.com>Mon Oct 23 22:04:30 2017 +0000
committerCopybara-Service <copybara-worker@google.com>Thu Mar 25 23:15:52 2021 -0700
tree80499cdbf3c3df80e6dd3f84fa04990999ce4a16
parentcd9a5d5892882ada2b1bfd55e132f031159fdd9a [diff]
[libFuzzer] Periodically purge allocator's quarantine to prolong fuzzing sessions.

Summary:
Fuzzing targets that allocate/deallocate a lot of memory tend to consume
a lot of RSS when ASan quarantine is enabled. Purging quarantine between
iterations and returning memory to OS keeps RSS down and should not
reduce the quarantine effectiveness provided the fuzz target does not
preserve state between iterations (in this case this feature can be turned off).

Based on D39153.

Reviewers: vitalybuka

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39155

llvm-svn: 316382
GitOrigin-RevId: 6f1c26f222b5df888a42ac53f1b600f2bd511c1b
6 files changed
tree: 80499cdbf3c3df80e6dd3f84fa04990999ce4a16
  1. afl/
  2. standalone/
  3. tests/
  4. build.sh
  5. FuzzerClangCounters.cpp
  6. FuzzerCorpus.h
  7. FuzzerCrossOver.cpp
  8. FuzzerDefs.h
  9. FuzzerDictionary.h
  10. FuzzerDriver.cpp
  11. FuzzerExtFunctions.def
  12. FuzzerExtFunctions.h
  13. FuzzerExtFunctionsDlsym.cpp
  14. FuzzerExtFunctionsDlsymWin.cpp
  15. FuzzerExtFunctionsWeak.cpp
  16. FuzzerExtFunctionsWeakAlias.cpp
  17. FuzzerExtraCounters.cpp
  18. FuzzerFlags.def
  19. FuzzerInterface.h
  20. FuzzerInternal.h
  21. FuzzerIO.cpp
  22. FuzzerIO.h
  23. FuzzerIOPosix.cpp
  24. FuzzerIOWindows.cpp
  25. FuzzerLoop.cpp
  26. FuzzerMain.cpp
  27. FuzzerMerge.cpp
  28. FuzzerMerge.h
  29. FuzzerMutate.cpp
  30. FuzzerMutate.h
  31. FuzzerOptions.h
  32. FuzzerRandom.h
  33. FuzzerSHA1.cpp
  34. FuzzerSHA1.h
  35. FuzzerShmem.h
  36. FuzzerShmemPosix.cpp
  37. FuzzerShmemWindows.cpp
  38. FuzzerTracePC.cpp
  39. FuzzerTracePC.h
  40. FuzzerUtil.cpp
  41. FuzzerUtil.h
  42. FuzzerUtilDarwin.cpp
  43. FuzzerUtilLinux.cpp
  44. FuzzerUtilPosix.cpp
  45. FuzzerUtilWindows.cpp
  46. FuzzerValueBitMap.h
  47. LICENSE.TXT
  48. README.txt