https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120086
--- Comment #3 from John David Anglin <danglin at gcc dot gnu.org> --- (In reply to Jørgen Kvalsvik from comment #2) > Interesting. I looked at the attach'd .gcov file and it is filled with these: > > paths covered 1 of zu > > Does the target not support size_t with printf("%zu")? Good find. Yes, the target doesn't support the 'z' modifier.