+ 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;