[Lldb-commits] [lldb] Reapply "[lldb/aarch64] Fix unwinding when signal interrupts a leaf f… (PR #92503)

[Jason Molenda via lldb-commits]

jasonmolenda wrote:

Yes, originally lldb's unwinder was recursive for any register propagation and it was easy to hit the problem of lldb blowing out its own stack on a recursive inferior that had crashed.  I changed most of the propagation to a loop to solve this (years and years ago) but it looks like we still have a case where it is recursing.

We still need to skip the test case on macOS until I can come up with some idea to get proper unwind instruction for sigtramp on arm64.  Most of the CI bots are x86_64 so it may pass on them, but that's The Past and I would prefer to skip this on Darwin until I can figure something out, I wrote a little TODO on myself in rdar://128031075 

This looks good to me.

https://github.com/llvm/llvm-project/pull/92503