[PATCH] D14907: [tsan] Fix weakly imported functions on OS X

[Kuba Brecka via llvm-commits]

kubabrecka created this revision.
kubabrecka added reviewers: dvyukov, kcc, glider, samsonov.
kubabrecka added subscribers: llvm-commits, zaks.anna, ismailp.

On OS X, for weak function (that user can override by providing their own implementation in the main binary), we need `extern "C" SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE NOINLINE`.

Fixes a broken test case on OS X, java_symbolization.cc, which uses a weak function __tsan_symbolize_external.

http://reviews.llvm.org/D14907

Files:
  lib/sanitizer_common/sanitizer_internal_defs.h
  lib/tsan/rtl/tsan_flags.cc
  lib/tsan/rtl/tsan_mman.cc
  lib/tsan/rtl/tsan_rtl.cc
  lib/tsan/rtl/tsan_rtl_report.cc
  lib/tsan/rtl/tsan_suppressions.cc
  lib/tsan/rtl/tsan_symbolize.cc

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