Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * Copyright (C) 2013 ARM Ltd.
3 *
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.
7 *
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.
12 *
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/>.
15 */
16#ifndef __ASM_STRING_H
17#define __ASM_STRING_H
18
19#ifndef CONFIG_KASAN
20#define __HAVE_ARCH_STRRCHR
21extern char *strrchr(const char *, int c);
22
23#define __HAVE_ARCH_STRCHR
24extern char *strchr(const char *, int c);
25
26#define __HAVE_ARCH_STRCMP
27extern int strcmp(const char *, const char *);
28
29#define __HAVE_ARCH_STRNCMP
30extern int strncmp(const char *, const char *, __kernel_size_t);
31
32#define __HAVE_ARCH_STRLEN
33extern __kernel_size_t strlen(const char *);
34
35#define __HAVE_ARCH_STRNLEN
36extern __kernel_size_t strnlen(const char *, __kernel_size_t);
37
38#define __HAVE_ARCH_MEMCMP
39extern int memcmp(const void *, const void *, size_t);
40
41#define __HAVE_ARCH_MEMCHR
42extern void *memchr(const void *, int, __kernel_size_t);
43#endif
44
45#define __HAVE_ARCH_MEMCPY
46extern void *memcpy(void *, const void *, __kernel_size_t);
47extern void *__memcpy(void *, const void *, __kernel_size_t);
48
49#define __HAVE_ARCH_MEMMOVE
50extern void *memmove(void *, const void *, __kernel_size_t);
51extern void *__memmove(void *, const void *, __kernel_size_t);
52
53#define __HAVE_ARCH_MEMSET
54extern void *memset(void *, int, __kernel_size_t);
55extern void *__memset(void *, int, __kernel_size_t);
56
57#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
58#define __HAVE_ARCH_MEMCPY_FLUSHCACHE
59void memcpy_flushcache(void *dst, const void *src, size_t cnt);
60#endif
61
62#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
63
64/*
65 * For files that are not instrumented (e.g. mm/slub.c) we
66 * should use not instrumented version of mem* functions.
67 */
68
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)
72
73#ifndef __NO_FORTIFY
74#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
75#endif
76
77#endif
78
79#endif