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