https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100486
--- Comment #62 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > No need to, there are actually several reasons to not rely on exception > propagation during bootstrap, so let's restore this invariant instead, I'm > testing a change to that effect. Fair enough. In any case, the symptoms are again consistent with a lack of registration of unwind tables, this time for libgcc, so this might be the same underlying issue as the grep-induced mess for GCC 10. My hunch would point to a constructor section merging issue in the linker, maybe related to the GCC configure check for HAVE_LD_RO_RW_SECTION_MIXING, which should fail for MinGW and may incorrectly succeed when things go wrong.
