string.h (1936B)
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2013 ARM Ltd. 4 */ 5#ifndef __ASM_STRING_H 6#define __ASM_STRING_H 7 8#if !(defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) 9#define __HAVE_ARCH_STRRCHR 10extern char *strrchr(const char *, int c); 11 12#define __HAVE_ARCH_STRCHR 13extern char *strchr(const char *, int c); 14 15#define __HAVE_ARCH_STRCMP 16extern int strcmp(const char *, const char *); 17 18#define __HAVE_ARCH_STRNCMP 19extern int strncmp(const char *, const char *, __kernel_size_t); 20 21#define __HAVE_ARCH_STRLEN 22extern __kernel_size_t strlen(const char *); 23 24#define __HAVE_ARCH_STRNLEN 25extern __kernel_size_t strnlen(const char *, __kernel_size_t); 26 27#define __HAVE_ARCH_MEMCMP 28extern int memcmp(const void *, const void *, size_t); 29 30#define __HAVE_ARCH_MEMCHR 31extern void *memchr(const void *, int, __kernel_size_t); 32#endif 33 34#define __HAVE_ARCH_MEMCPY 35extern void *memcpy(void *, const void *, __kernel_size_t); 36extern void *__memcpy(void *, const void *, __kernel_size_t); 37 38#define __HAVE_ARCH_MEMMOVE 39extern void *memmove(void *, const void *, __kernel_size_t); 40extern void *__memmove(void *, const void *, __kernel_size_t); 41 42#define __HAVE_ARCH_MEMSET 43extern void *memset(void *, int, __kernel_size_t); 44extern void *__memset(void *, int, __kernel_size_t); 45 46#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE 47#define __HAVE_ARCH_MEMCPY_FLUSHCACHE 48void memcpy_flushcache(void *dst, const void *src, size_t cnt); 49#endif 50 51#if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \ 52 !defined(__SANITIZE_ADDRESS__) 53 54/* 55 * For files that are not instrumented (e.g. mm/slub.c) we 56 * should use not instrumented version of mem* functions. 57 */ 58 59#define memcpy(dst, src, len) __memcpy(dst, src, len) 60#define memmove(dst, src, len) __memmove(dst, src, len) 61#define memset(s, c, n) __memset(s, c, n) 62 63#ifndef __NO_FORTIFY 64#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */ 65#endif 66 67#endif 68 69#endif