https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64511
--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Note the stack traces involving do_spec_1 are generally bogus (should be fixed), those stack traces are from the gcc driver rather than cc1/cc1plus etc., and are printed because cc1/cc1plus segfaulted.
