2 * Copyright (C) 2013 ARM Ltd.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 #ifndef __ASM_STRING_H
17 #define __ASM_STRING_H
20 #define __HAVE_ARCH_STRRCHR
21 extern char *strrchr(const char *, int c);
23 #define __HAVE_ARCH_STRCHR
24 extern char *strchr(const char *, int c);
26 #define __HAVE_ARCH_STRCMP
27 extern int strcmp(const char *, const char *);
29 #define __HAVE_ARCH_STRNCMP
30 extern int strncmp(const char *, const char *, __kernel_size_t);
32 #define __HAVE_ARCH_STRLEN
33 extern __kernel_size_t strlen(const char *);
35 #define __HAVE_ARCH_STRNLEN
36 extern __kernel_size_t strnlen(const char *, __kernel_size_t);
38 #define __HAVE_ARCH_MEMCMP
39 extern int memcmp(const void *, const void *, size_t);
41 #define __HAVE_ARCH_MEMCHR
42 extern void *memchr(const void *, int, __kernel_size_t);
45 #define __HAVE_ARCH_MEMCPY
46 extern void *memcpy(void *, const void *, __kernel_size_t);
47 extern void *__memcpy(void *, const void *, __kernel_size_t);
49 #define __HAVE_ARCH_MEMMOVE
50 extern void *memmove(void *, const void *, __kernel_size_t);
51 extern void *__memmove(void *, const void *, __kernel_size_t);
53 #define __HAVE_ARCH_MEMSET
54 extern void *memset(void *, int, __kernel_size_t);
55 extern void *__memset(void *, int, __kernel_size_t);
57 #ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
58 #define __HAVE_ARCH_MEMCPY_FLUSHCACHE
59 void memcpy_flushcache(void *dst, const void *src, size_t cnt);
62 #if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
65 * For files that are not instrumented (e.g. mm/slub.c) we
66 * should use not instrumented version of mem* functions.
69 #define memcpy(dst, src, len) __memcpy(dst, src, len)
70 #define memmove(dst, src, len) __memmove(dst, src, len)
71 #define memset(s, c, n) __memset(s, c, n)
74 #define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */