tree 3a1d51106cb0e6556af6c4c4cf4bf958f8de5d82
parent 952b37c94587a8da34ae593f4164aed3ce6b517f
author Kostya Kortchinsky <kostyak@google.com> 1603926242 -0700
committer Copybara-Service <copybara-worker@google.com> 1604025800 -0700

[GWP-ASan] Add mutexes for Fuchsia

Mitch expressed a preference to not have `#ifdef`s in platform agnostic
code, this change tries to accomodate this.

I am not attached to the method this CL proposes, so if anyone has a
suggestion, I am open.

We move the platform specific member of the mutex into its own platform
specific class that the main `Mutex` class inherits from. Functions are
implemented in their respective platform specific compilation units.

For Fuchsia, we use the sync APIs, as those are also the ones being
used in Scudo.

Differential Revision: https://reviews.llvm.org/D90351

GitOrigin-RevId: 3591721ada99810aeddfa3d4c83eea0dbeed7f18