src/env/__stack_chk_fail.c

   1 #include <string.h>
   2 #include <stdint.h>
   3 #include "pthread_impl.h"
   4
   5 uintptr_t __stack_chk_guard;
   6
   7 void __init_ssp(void *entropy)
   8 {
   9         if (entropy) memcpy(&__stack_chk_guard, entropy, sizeof(uintptr_t));
  10         else __stack_chk_guard = (uintptr_t)&__stack_chk_guard * 1103515245;
  11
  12         __pthread_self()->CANARY = __stack_chk_guard;
  13 }
  14
  15 void __stack_chk_fail(void)
  16 {
  17         a_crash();
  18 }
  19
  20 hidden void __stack_chk_fail_local(void);
  21
  22 weak_alias(__stack_chk_fail, __stack_chk_fail_local);