1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2016, Linaro Limited 4 */ 5 #ifndef __KERNEL_ASAN_H 6 #define __KERNEL_ASAN_H 7 8 #include <stdint.h> 9 10 #define ASAN_DATA_RED_ZONE -1 11 #define ASAN_HEAP_RED_ZONE -2 12 13 #define ASAN_BLOCK_SIZE U(8) 14 #define ASAN_BLOCK_SHIFT U(3) 15 #define ASAN_BLOCK_MASK (ASAN_BLOCK_SIZE - 1) 16 17 #ifndef __ASSEMBLER__ 18 #include <compiler.h> 19 #include <string.h> 20 #include <types_ext.h> 21 22 void asan_set_shadowed(const void *va_begin, const void *va_end); 23 void asan_start(void); 24 25 #ifdef CFG_CORE_SANITIZE_KADDRESS 26 void asan_tag_no_access(const void *begin, const void *end); 27 void asan_tag_access(const void *begin, const void *end); 28 void asan_tag_heap_free(const void *begin, const void *end); 29 void *asan_memset_unchecked(void *s, int c, size_t n); 30 void *asan_memcpy_unchecked(void *__restrict s1, const void *__restrict s2, 31 size_t n); 32 #else 33 static inline void asan_tag_no_access(const void *begin __unused, 34 const void *end __unused) 35 { 36 } 37 static inline void asan_tag_access(const void *begin __unused, 38 const void *end __unused) 39 { 40 } 41 static inline void asan_tag_heap_free(const void *begin __unused, 42 const void *end __unused) 43 { 44 } 45 46 static inline void *asan_memset_unchecked(void *s, int c, size_t n) 47 { 48 return memset(s, c, n); 49 } 50 51 static inline void *asan_memcpy_unchecked(void *__restrict s1, 52 const void *__restrict s2, size_t n) 53 { 54 return memcpy(s1, s2, n); 55 } 56 57 #endif 58 59 #endif /*__ASSEMBLER__*/ 60 #endif /*__KERNEL_ASAN_H*/ 61