void __init_ssp(void *entropy) { pthread_t self = __pthread_self_init(); uintptr_t canary; if (entropy) memcpy(&canary, entropy, sizeof canary); else canary = (uintptr_t)&canary * 1103515245; a_cas_l(&__stack_chk_guard, 0, canary); self->canary = __stack_chk_guard; }
void __init_ssp(size_t *auxv) { size_t i; pthread_t self = __pthread_self_init(); uintptr_t canary; for (i=0; auxv[i] && auxv[i]!=AT_RANDOM; i+=2); if (auxv[i]) memcpy(&canary, (void *)auxv[i+1], sizeof canary); else canary = (uintptr_t)&canary * 1103515245; a_cas_l(&__stack_chk_guard, 0, canary); self->canary = __stack_chk_guard; }