[PATCH] D38250: [libunwind] Implement the Get/SetTopOfFunctionStack functions via a __thread TLS variable

[Saleem Abdulrasool via Phabricator via cfe-commits]

compnerd requested changes to this revision.
compnerd added a comment.
This revision now requires changes to proceed.

I have a complete implementation for this which is known to work on Windows at least.  The only thing that `__thread` requires is a working linker (which does not include binutils -- I do have a local patch to make that work though).  Are these two the only ones that are missing?  At the very least, the implementation of `SetTopOfFunctionStack` is incorrect.


https://reviews.llvm.org/D38250