about summary refs log tree commit diff
path: root/src/env/__stack_chk_fail.c
blob: 4de82fd9d2f39bd19bf71269b9530eae82552c4e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
#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);