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[TSan][Darwin] Avoid calling pthread_self() before libpthread is initialized

Authored by yln on Dec 16 2019, 10:55 AM.



This skips calling pthread_self when main_thread_identity hasn't
been initialized yet. main_thread_identity is only ever assigned in
__tsan::InitializePlatform. This change should be relatively safe; we
are not changing behavior other than skipping the call to pthread_self
when main_thread_identity == 0.


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yln created this revision.Dec 16 2019, 10:55 AM
Herald added projects: Restricted Project, Restricted Project. · View Herald TranscriptDec 16 2019, 10:55 AM
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kubamracek accepted this revision.Dec 16 2019, 12:20 PM
This revision is now accepted and ready to land.Dec 16 2019, 12:20 PM
This revision was automatically updated to reflect the committed changes.