[all-commits] [llvm/llvm-project] 6345d7: [sanitizer] Don't run malloc hooks for stacktraces

[Vitaly Buka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6345d7f2a829faea56ad522a7d5180043f862a5c
      https://github.com/llvm/llvm-project/commit/6345d7f2a829faea56ad522a7d5180043f862a5c
  Author: Vitaly Buka <vitalybuka at google.com>
  Date:   2022-04-13 (Wed, 13 Apr 2022)

  Changed paths:
    M compiler-rt/lib/msan/msan_allocator.cpp
    M compiler-rt/lib/sanitizer_common/sanitizer_common.cpp
    M compiler-rt/lib/sanitizer_common/sanitizer_common.h
    M compiler-rt/lib/sanitizer_common/sanitizer_fuchsia.cpp
    M compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
    M compiler-rt/lib/sanitizer_common/sanitizer_mac.cpp
    M compiler-rt/lib/sanitizer_common/sanitizer_symbolizer.h
    M compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_markup.cpp
    M compiler-rt/lib/sanitizer_common/sanitizer_unwind_linux_libcdep.cpp
    A compiler-rt/test/sanitizer_common/TestCases/malloc_hook_skip.cpp

  Log Message:
  -----------
  [sanitizer] Don't run malloc hooks for stacktraces

Usually when we generated stacktraces the process is in error state, so
running hooks may crash the process and prevent meaningfull error report.

Symbolizer, unwinder and pthread are potential source of mallocs.

https://b.corp.google.com/issues/228110771

Reviewed By: kda

Differential Revision: https://reviews.llvm.org/D123566