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llvm / scudo / 5e28e834f8951788a788cacfc2cc6bcc9510295b
commit5e28e834f8951788a788cacfc2cc6bcc9510295b[log] [tgz]
authorChia-hung Duan <chiahungduan@google.com>Wed May 10 02:40:48 2023 +0000
committerCopybara-Service <copybara-worker@google.com>Wed May 10 13:25:33 2023 -0700
tree2eacb92aa3b6cd33679f26bd6ef292a31f5d6994
parent522f1ce93640fd7b440f90b132cd2c1d8eca7c67 [diff]
[scudo] Skip releaseToOSMaybe if there's no byte in freelist

In primary32, the unused region will have max/min region index with 0
value and it's an invalid index. Skip releaseToOSMaybe in both primary32
and primary64 even it's M_PURGE_ALL.

Differential Revision: https://reviews.llvm.org/D150243

GitOrigin-RevId: 0d45bbcb6007f5c345bacd30f94d61f6d9dfebb2
2 files changed
tree: 2eacb92aa3b6cd33679f26bd6ef292a31f5d6994
  1. benchmarks/
  2. fuzz/
  3. include/
  4. tests/
  5. tools/
  6. allocator_config.h
  7. atomic_helpers.h
  8. bytemap.h
  9. checksum.cpp
  10. checksum.h
  11. chunk.h
  12. combined.h
  13. common.cpp
  14. common.h
  15. crc32_hw.cpp
  16. flags.cpp
  17. flags.h
  18. flags.inc
  19. flags_parser.cpp
  20. flags_parser.h
  21. fuchsia.cpp
  22. fuchsia.h
  23. internal_defs.h
  24. LICENSE.TXT
  25. linux.cpp
  26. linux.h
  27. list.h
  28. local_cache.h
  29. mem_map.cpp
  30. mem_map.h
  31. mem_map_base.h
  32. memtag.h
  33. mutex.h
  34. options.h
  35. platform.h
  36. primary32.h
  37. primary64.h
  38. quarantine.h
  39. release.cpp
  40. release.h
  41. report.cpp
  42. report.h
  43. rss_limit_checker.cpp
  44. rss_limit_checker.h
  45. secondary.h
  46. size_class_map.h
  47. stack_depot.h
  48. stats.h
  49. string_utils.cpp
  50. string_utils.h
  51. thread_annotations.h
  52. timing.cpp
  53. timing.h
  54. trusty.cpp
  55. trusty.h
  56. tsd.h
  57. tsd_exclusive.h
  58. tsd_shared.h
  59. vector.h
  60. wrappers_c.cpp
  61. wrappers_c.h
  62. wrappers_c.inc
  63. wrappers_c_bionic.cpp
  64. wrappers_c_checks.h
  65. wrappers_cpp.cpp