[PATCH] D86471: [MSAN] Add fiber switching APIs

[Justin Cady via Phabricator via llvm-commits]

justincady created this revision.
justincady added a reviewer: eugenis.
Herald added subscribers: Sanitizers, lxfind, jfb, modocache.
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Add functions exposed via the MSAN interface to enable MSAN within
binaries that perform manual stack switching (e.g. through using fibers
or coroutines).

This functionality is analogous to the fiber APIs available for ASAN and TSAN.

Fixes google/sanitizers#1232


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D86471

Files:
  compiler-rt/include/sanitizer/msan_interface.h
  compiler-rt/lib/msan/msan.cpp
  compiler-rt/lib/msan/msan_interface_internal.h
  compiler-rt/lib/msan/msan_thread.cpp
  compiler-rt/lib/msan/msan_thread.h
  compiler-rt/test/msan/Linux/swapcontext_annotation.cpp
  compiler-rt/test/msan/Linux/swapcontext_annotation_reset.cpp

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