Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_KASAN_CHECKS_H
3#define _LINUX_KASAN_CHECKS_H
4
5#include <linux/types.h>
6
7/*
8 * __kasan_check_*: Always available when KASAN is enabled. This may be used
9 * even in compilation units that selectively disable KASAN, but must use KASAN
10 * to validate access to an address. Never use these in header files!
11 */
12#ifdef CONFIG_KASAN
13bool __kasan_check_read(const volatile void *p, unsigned int size);
14bool __kasan_check_write(const volatile void *p, unsigned int size);
15#else
16static inline bool __kasan_check_read(const volatile void *p, unsigned int size)
17{
18 return true;
19}
20static inline bool __kasan_check_write(const volatile void *p, unsigned int size)
21{
22 return true;
23}
24#endif
25
26/*
27 * kasan_check_*: Only available when the particular compilation unit has KASAN
28 * instrumentation enabled. May be used in header files.
29 */
30#ifdef __SANITIZE_ADDRESS__
31#define kasan_check_read __kasan_check_read
32#define kasan_check_write __kasan_check_write
33#else
34static inline bool kasan_check_read(const volatile void *p, unsigned int size)
35{
36 return true;
37}
38static inline bool kasan_check_write(const volatile void *p, unsigned int size)
39{
40 return true;
41}
42#endif
43
44#endif