[libcxx-commits] [PATCH] D131292: [libunwind][AIX] Save/restore errno before/after system calls dlopen/dlsym/dlclose

[Saleem Abdulrasool via Phabricator via libcxx-commits]

compnerd added a comment.

I'm not opposed to the change, but I wonder if we should consider placing this in an `#if defined(_AIX)` guard.  This would avoid touching `errno` on other platforms, which would likely be a TLS access.  It would also make it more obvious that this is a workaround for AIX.  At the very least, I think that we should add some comments to explain the issue so that it is obvious at the site rather than having to go through the change log.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D131292/new/

https://reviews.llvm.org/D131292