https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87220
--- Comment #12 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > I don't see that as implicit, and it's certainly not true for > -fstack-clash-protection. We're going in circles... -fstack-clash-protection is not stack checking a la Ada, it's stack protection against clash attacks and it indeed has different requirements that stack checking.