[PATCH] D123428: [libunwind] Add configuration to disable sigreturn frame check

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

> We're observing such segfaults internally (possibly due to invalid unwind info in libraries which are out of our control).

It would be interesting to know whether Clang does anything wrong here. `@chill` is improving such stuff.

(Without signal trampoline frame recognization, it could be bad for crash reporting: https://maskray.me/blog/2022-04-10-unwinding-through-signal-handler#glibc-aarch64 )


Repository:
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  https://reviews.llvm.org/D123428/new/

https://reviews.llvm.org/D123428