[Bug target/42159] unwinding issues on darwin

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42159

Iain Sandoe <iains at gcc dot gnu.org> changed:

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                 CC|                            |iains at gcc dot gnu.org

--- Comment #36 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Niklas Hauser from comment #35)
> We can reproduce this issue on OS X 10.12, please see below for a detailed
> analysis of the underlying problem.

The underlying issue is understood and we've worked around it to for the case
of "-static-libgcc" [PR80556].

Please could you identify:
 1. the version of GCC you're testing? (the ones mentioned in the PR here are
well out of 'support').  Although there are probably work-around patches that
could be applied

 2. the command line(s)

I have some patches in progress to tidy up the CRT/libgcc/unwinder stuff (which
do, essentially, remove the unwinder from the build for later darwin - but
leave them in place for Darwin9 etc.)