https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127112
--- Comment #2 from Travis Downs <travis.downs at gmail dot com> --- For the record, the glibc side of this - the missing CFI annotations on swapcontext() - is now sourceware bug 34575: https://sourceware.org/bugzilla/show_bug.cgi?id=34575 The two are complementary: annotating swapcontext() is what makes a mid-switch backtrace correct, while the request here is that the unwinder fail safe when it meets CFI it cannot trust, in already-shipped libraries that no annotation can fix retroactively.
