/* SPDX-License-Identifier: GPL-2.0-only *//* * Copyright (C) 2013 ARM Ltd. */#ifndef __ASM_STRING_H#define __ASM_STRING_H #if !(defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS))#define __HAVE_ARCH_STRRCHRextern char *strrchr(const char *, int c); #define __HAVE_ARCH_STRCHRextern char *strchr(const char *, int c); #define __HAVE_ARCH_STRCMPextern int strcmp(const char *, const char *); #define __HAVE_ARCH_STRNCMPextern int strncmp(const char *, const char *, __kernel_size_t); #define __HAVE_ARCH_STRLENextern __kernel_size_t strlen(const char *); #define __HAVE_ARCH_STRNLENextern __kernel_size_t strnlen(const char *, __kernel_size_t); #define __HAVE_ARCH_MEMCMPextern int memcmp(const void *, const void *, size_t); #define __HAVE_ARCH_MEMCHRextern void *memchr(const void *, int, __kernel_size_t);#endif #define __HAVE_ARCH_MEMCPYextern void *memcpy(void *, const void *, __kernel_size_t);extern void *__memcpy(void *, const void *, __kernel_size_t); #define __HAVE_ARCH_MEMMOVEextern void *memmove(void *, const void *, __kernel_size_t);extern void *__memmove(void *, const void *, __kernel_size_t); #define __HAVE_ARCH_MEMSETextern void *memset(void *, int, __kernel_size_t);extern void *__memset(void *, int, __kernel_size_t); #ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE#define __HAVE_ARCH_MEMCPY_FLUSHCACHEvoid memcpy_flushcache(void *dst, const void *src, size_t cnt);#endif #if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \	!defined(__SANITIZE_ADDRESS__) /* * For files that are not instrumented (e.g. mm/slub.c) we * should use not instrumented version of mem* functions. */ #define memcpy(dst, src, len) __memcpy(dst, src, len)#define memmove(dst, src, len) __memmove(dst, src, len)#define memset(s, c, n) __memset(s, c, n) #ifndef __NO_FORTIFY#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */#endif #endif #endif