https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120266
Oleg Endo <olegendo at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|INVALID |---
Ever confirmed|0 |1
Status|RESOLVED |NEW
Last reconfirmed| |2025-05-15
--- Comment #8 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #4)
>
> This is one of many reasons that building libstdc++ with LTO is not
> supported, and will probably break.
>
> I have some ideas for using a separate ref-counted string type in the
> exceptions, so that it's neither the COW std::basic_string nor the
> __cow_string kluge, but it's not a priority.
Since this is a known deficit, I'd propose to leave this one open as a feature
request. Being able to use LTO across _all_ libs/modules that go into a program
can be quite useful in embedded/bare-metal environments. So I think it's a
valid request. Just not supported at the moment.
