fusl/src/env/__stack_chk_fail.c

#include <string.h>
#include <stdint.h>
#include "pthread_impl.h"

uintptr_t __stack_chk_guard;

void __init_ssp(void* entropy) {
  if (entropy)
    memcpy(&__stack_chk_guard, entropy, sizeof(uintptr_t));
  else
    __stack_chk_guard = (uintptr_t)&__stack_chk_guard * 1103515245;

  __pthread_self()->CANARY = __stack_chk_guard;
}

void __stack_chk_fail(void) {
  a_crash();
}

__attribute__((__visibility__("hidden"))) void __stack_chk_fail_local(void);

weak_alias(__stack_chk_fail, __stack_chk_fail_local);