[libcxx-commits] [PATCH] D120851: [libc++] Add a CI job running MSAN

[Louis Dionne via Phabricator via libcxx-commits]

ldionne added a comment.

In D120851#3355702 <https://reviews.llvm.org/D120851#3355702>, @philnik wrote:

> I'm not sure this will be that easy. MSAN is tricky. According to documentation, even libc has to be instrumented for this to work properly. See https://clang.llvm.org/docs/MemorySanitizer.html#id11. And AFAIK we don't build libc on the nodes.

It also says they implement various interceptors for common libc functionality, and we don't use anything super fancy, so perhaps we'll be good! So far it looks like only libunwind is having trouble.


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D120851