1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * This file is subject to the terms and conditions of the GNU General Public 4 * License. See the file "COPYING" in the main directory of this archive 5 * for more details. 6 * 7 * Copyright (C) 2020 Loongson Technology Corporation Limited 8 */ 9 #ifndef _ASM_STRING_H 10 #define _ASM_STRING_H 11 12 #define __HAVE_ARCH_MEMSET 13 extern void *memset(void *__s, int __c, size_t __count); 14 extern void *__memset(void *__s, int __c, size_t __count); 15 16 #define __HAVE_ARCH_MEMCPY 17 extern void *memcpy(void *__to, __const__ void *__from, size_t __n); 18 extern void *__memcpy(void *__to, __const__ void *__from, size_t __n); 19 20 #define __HAVE_ARCH_MEMMOVE 21 extern void *memmove(void *__dest, __const__ void *__src, size_t __n); 22 extern void *__memmove(void *__dest, __const__ void *__src, size_t __n); 23 24 #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__) 25 26 /* 27 * For files that are not instrumented (e.g. mm/slub.c) we 28 * should use not instrumented version of mem* functions. 29 */ 30 31 #define memset(s, c, n) __memset(s, c, n) 32 #define memcpy(dst, src, len) __memcpy(dst, src, len) 33 #define memmove(dst, src, len) __memmove(dst, src, len) 34 35 #ifndef __NO_FORTIFY 36 #define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */ 37 #endif 38 39 #endif 40 41 #endif /* _ASM_STRING_H */ 42