/* SPDX-License-Identifier: GPL-2.0 */
|
#ifndef _LINUX_KASAN_CHECKS_H
|
#define _LINUX_KASAN_CHECKS_H
|
|
#include <linux/types.h>
|
|
/*
|
* The annotations present in this file are only relevant for the software
|
* KASAN modes that rely on compiler instrumentation, and will be optimized
|
* away for the hardware tag-based KASAN mode. Use kasan_check_byte() instead.
|
*/
|
|
/*
|
* __kasan_check_*: Always available when KASAN is enabled. This may be used
|
* even in compilation units that selectively disable KASAN, but must use KASAN
|
* to validate access to an address. Never use these in header files!
|
*/
|
#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
|
bool __kasan_check_read(const volatile void *p, unsigned int size);
|
bool __kasan_check_write(const volatile void *p, unsigned int size);
|
#else
|
static inline bool __kasan_check_read(const volatile void *p, unsigned int size)
|
{
|
return true;
|
}
|
static inline bool __kasan_check_write(const volatile void *p, unsigned int size)
|
{
|
return true;
|
}
|
#endif
|
|
/*
|
* kasan_check_*: Only available when the particular compilation unit has KASAN
|
* instrumentation enabled. May be used in header files.
|
*/
|
#ifdef __SANITIZE_ADDRESS__
|
#define kasan_check_read __kasan_check_read
|
#define kasan_check_write __kasan_check_write
|
#else
|
static inline bool kasan_check_read(const volatile void *p, unsigned int size)
|
{
|
return true;
|
}
|
static inline bool kasan_check_write(const volatile void *p, unsigned int size)
|
{
|
return true;
|
}
|
#endif
|
|
#endif
|
