X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Fenv%2F__stack_chk_fail.c;h=87ac473d1096f97ff0e062a6b532543d4ea3e1f4;hb=41421d6beb3f17aa8838f7cdaad9cd16b4c451f6;hp=daa1b0783a890c07c385431dd2de7026e994fcd4;hpb=571744447c23f91feb6439948f3a619aca850dfb;p=musl diff --git a/src/env/__stack_chk_fail.c b/src/env/__stack_chk_fail.c index daa1b078..87ac473d 100644 --- a/src/env/__stack_chk_fail.c +++ b/src/env/__stack_chk_fail.c @@ -1,18 +1,16 @@ #include #include #include "pthread_impl.h" -#include "atomic.h" uintptr_t __stack_chk_guard; 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; + if (entropy) memcpy(&__stack_chk_guard, entropy, sizeof(uintptr_t)); + else __stack_chk_guard = (uintptr_t)&__stack_chk_guard * 1103515245; + + if (libc.has_thread_pointer) + __pthread_self()->canary = __stack_chk_guard; } void __stack_chk_fail(void)