Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
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#ifndef CONFIG_KASAN_HW_TAGS
16#define __HAVE_ARCH_STRCMP
17extern int strcmp(const char *, const char *);
18
19#define __HAVE_ARCH_STRNCMP
20extern int strncmp(const char *, const char *, __kernel_size_t);
21#endif
22
23#define __HAVE_ARCH_STRLEN
24extern __kernel_size_t strlen(const char *);
25
26#define __HAVE_ARCH_STRNLEN
27extern __kernel_size_t strnlen(const char *, __kernel_size_t);
28
29#define __HAVE_ARCH_MEMCMP
30extern int memcmp(const void *, const void *, size_t);
31
32#define __HAVE_ARCH_MEMCHR
33extern void *memchr(const void *, int, __kernel_size_t);
34#endif
35
36#define __HAVE_ARCH_MEMCPY
37extern void *memcpy(void *, const void *, __kernel_size_t);
38extern void *__memcpy(void *, const void *, __kernel_size_t);
39
40#define __HAVE_ARCH_MEMMOVE
41extern void *memmove(void *, const void *, __kernel_size_t);
42extern void *__memmove(void *, const void *, __kernel_size_t);
43
44#define __HAVE_ARCH_MEMSET
45extern void *memset(void *, int, __kernel_size_t);
46extern void *__memset(void *, int, __kernel_size_t);
47
48#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
49#define __HAVE_ARCH_MEMCPY_FLUSHCACHE
50void memcpy_flushcache(void *dst, const void *src, size_t cnt);
51#endif
52
53#if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \
54 !defined(__SANITIZE_ADDRESS__)
55
56/*
57 * For files that are not instrumented (e.g. mm/slub.c) we
58 * should use not instrumented version of mem* functions.
59 */
60
61#define memcpy(dst, src, len) __memcpy(dst, src, len)
62#define memmove(dst, src, len) __memmove(dst, src, len)
63#define memset(s, c, n) __memset(s, c, n)
64
65#ifndef __NO_FORTIFY
66#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
67#endif
68
69#endif
70
71#endif