https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64123
Jan Hubicka <hubicka at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |nathan at codesourcery dot com --- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> --- The crash happens before gcov_var->file is NULL. Nathan, I would suspect that perhaps one of your visibility changes makes us to use gcov_open from wrong copy of libgcov (there are multiple shared libraries linked with it) that in turn initializes wong copy of gcov_var->file?