blob: 283c346478565c22a6f49c7d3ca2af36cdf10841 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* GCC stack protector support.
*
*/
#ifndef _ASM_STACKPROTECTOR_H
#define _ASM_STACKPROTECTOR_H
#include <asm/reg.h>
#include <asm/current.h>
#include <asm/paca.h>
/*
* Initialize the stackprotector canary value.
*
* NOTE: this must only be called from functions that never return,
* and it must always be inlined.
*/
static __always_inline void boot_init_stack_canary(void)
{
unsigned long canary = get_random_canary();
current->stack_canary = canary;
#ifdef CONFIG_PPC64
get_paca()->canary = canary;
#endif
}
#endif /* _ASM_STACKPROTECTOR_H */
|
