[PATCH] D21889: [tsan] Add support for GCD IO channels on Darwin

[Kuba Brecka via llvm-commits]

kubabrecka created this revision.
kubabrecka added reviewers: dvyukov, kcc, glider.
kubabrecka added subscribers: llvm-commits, zaks.anna, dcoughlin.
kubabrecka added a project: Sanitizers.
Herald added a subscriber: kubabrecka.

This patch adds interceptors for dispatch_io_*, dispatch_read and dispatch_write functions.  This avoids false positives when using GCD IO.  Adding several test cases.

http://reviews.llvm.org/D21889

Files:
  lib/tsan/rtl/tsan_libdispatch_mac.cc
  test/tsan/Darwin/gcd-fd.mm
  test/tsan/Darwin/gcd-io-cleanup.mm
  test/tsan/Darwin/gcd-io-race.mm
  test/tsan/Darwin/gcd-io.mm

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