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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/66874] RFE: x86_64_fallback_frame_state more robust
Date: Fri, 23 Feb 2024 17:24:30 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D66874

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Sam James from comment #2)
> I've been going crazy hitting this recently (see e.g.
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114068#c2).
>=20
> pinskia pointed me here and I fear I might be hitting this as a result of
> dwz optimised debug info on gcc (as it's the only recent change I can thi=
nk
> of).

How could dwz have anything to do with this?  The libgcc unwinder works on
.eh_frame sections.  dwz only ever modifies .debug_* sections (and
.gnu_debugaltlink and
perhaps throws away .gdb_index), all non-allocatable sections which the lib=
gcc
unwinder never touches.=