[libcxx-commits] [libcxx] [libc++] Make std::call_once synchronization visible to TSan (PR #220160)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 commented:

I'm not sure I like this too much. There is a general problem that the sanitizers basically need a different dylib to work fully, and this is adding a workaround for that which isn't super trivial. OTOH making it easy to link against a properly complied dylib is a huge endavour which I don't think should block fixing false-positives.

@ldionne @frederick-vs-ja do you have any thoughts on this?

https://github.com/llvm/llvm-project/pull/220160