[all-commits] [llvm/llvm-project] 884311: [Sanitizer] Option to fallback to stderr if unable...

[Ellis Hoag via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8843111d381bc9bd0895dc11a9b221bb41af7306
      https://github.com/llvm/llvm-project/commit/8843111d381bc9bd0895dc11a9b221bb41af7306
  Author: Ellis Hoag <ellis.sparky.hoag at gmail.com>
  Date:   2025-09-22 (Mon, 22 Sep 2025)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/sanitizer_file.cpp
    M compiler-rt/lib/sanitizer_common/sanitizer_file.h
    M compiler-rt/lib/sanitizer_common/sanitizer_flags.inc
    M compiler-rt/test/sanitizer_common/TestCases/Posix/sanitizer_set_report_path_fail.cpp

  Log Message:
  -----------
  [Sanitizer] Option to fallback to stderr if unable to open logfile (#158687)

Add the santizier option `log_fallback_to_stderr` which will set the
logpath to `stderr` if there is an error with the provided logpath.
We've seen this happen when process A has write permission to the
logpath, but process B does not. In this case, we'd like process B to
fallback to writing to `stderr`, rather than being killed.



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