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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2013 Regents of the University of California
4 */
5
6#ifndef _ASM_RISCV_STRING_H
7#define _ASM_RISCV_STRING_H
8
9#include <linux/types.h>
10#include <linux/linkage.h>
11
12#define __HAVE_ARCH_MEMSET
13extern asmlinkage void *memset(void *, int, size_t);
14extern asmlinkage void *__memset(void *, int, size_t);
15#define __HAVE_ARCH_MEMCPY
16extern asmlinkage void *memcpy(void *, const void *, size_t);
17extern asmlinkage void *__memcpy(void *, const void *, size_t);
18#define __HAVE_ARCH_MEMMOVE
19extern asmlinkage void *memmove(void *, const void *, size_t);
20extern asmlinkage void *__memmove(void *, const void *, size_t);
21
22#if !(defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS))
23#define __HAVE_ARCH_STRCMP
24extern asmlinkage int strcmp(const char *cs, const char *ct);
25
26#define __HAVE_ARCH_STRLEN
27extern asmlinkage __kernel_size_t strlen(const char *);
28
29#define __HAVE_ARCH_STRNCMP
30extern asmlinkage int strncmp(const char *cs, const char *ct, size_t count);
31
32#define __HAVE_ARCH_STRNLEN
33extern asmlinkage __kernel_size_t strnlen(const char *, size_t);
34
35#define __HAVE_ARCH_STRCHR
36extern asmlinkage char *strchr(const char *, int);
37
38#define __HAVE_ARCH_STRRCHR
39extern asmlinkage char *strrchr(const char *, int);
40#endif
41
42/* For those files which don't want to check by kasan. */
43#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
44#define memcpy(dst, src, len) __memcpy(dst, src, len)
45#define memset(s, c, n) __memset(s, c, n)
46#define memmove(dst, src, len) __memmove(dst, src, len)
47
48#ifndef __NO_FORTIFY
49#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
50#endif
51
52#endif
53#endif /* _ASM_RISCV_STRING_H */