[Bug 207359] head -r339076 TARGET_ARCH=powerpc64 via powerpc64-gcc : some or all c++ exceptions unbounded loop in _Unwind_RaiseException

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Mar 23 20:52:18 UTC 2019


--- Comment #15 from Mark Millard <marklmi26-fbsd at yahoo.com> ---
(In reply to Andrey Rusev from comment #13)

Please submit your own defect report. For powerpc64 reverting
to FreeBSD 8.4-RELEASE-p35 and gcc 4.2.1 is irrelevant to what
I was reporting. powerpc64 does not have the history that amd64
has and a lot has changed since back then.

I was reporting an issue explicit tied to giving information
for using more modern toolchains than gcc 4.2.1 . 

For powerpc64, more is now known for what I was reporting and
patching efforts to fix both the historical unwind code's
DW_CFA_remember_state and DW_CFA_restore_state hnndling and
llvm's libunwind's handling of r2 during unwind (the TOC
register for powerpc64) are in progress. (It may be that
only llvm libunwind will be fixed and used going forward.)

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