Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_STRING_H
3#define _ASM_POWERPC_STRING_H
4
5#ifdef __KERNEL__
6
7#ifndef CONFIG_KASAN
8#define __HAVE_ARCH_STRNCPY
9#define __HAVE_ARCH_STRNCMP
10#define __HAVE_ARCH_MEMCHR
11#define __HAVE_ARCH_MEMCMP
12#define __HAVE_ARCH_MEMSET16
13#endif
14
15#define __HAVE_ARCH_MEMSET
16#define __HAVE_ARCH_MEMCPY
17#define __HAVE_ARCH_MEMMOVE
18#define __HAVE_ARCH_MEMCPY_FLUSHCACHE
19
20extern char * strcpy(char *,const char *);
21extern char * strncpy(char *,const char *, __kernel_size_t);
22extern __kernel_size_t strlen(const char *);
23extern int strcmp(const char *,const char *);
24extern int strncmp(const char *, const char *, __kernel_size_t);
25extern char * strcat(char *, const char *);
26extern void * memset(void *,int,__kernel_size_t);
27extern void * memcpy(void *,const void *,__kernel_size_t);
28extern void * memmove(void *,const void *,__kernel_size_t);
29extern int memcmp(const void *,const void *,__kernel_size_t);
30extern void * memchr(const void *,int,__kernel_size_t);
31extern void * memcpy_flushcache(void *,const void *,__kernel_size_t);
32
33void *__memset(void *s, int c, __kernel_size_t count);
34void *__memcpy(void *to, const void *from, __kernel_size_t n);
35void *__memmove(void *to, const void *from, __kernel_size_t n);
36
37#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
38/*
39 * For files that are not instrumented (e.g. mm/slub.c) we
40 * should use not instrumented version of mem* functions.
41 */
42#define memcpy(dst, src, len) __memcpy(dst, src, len)
43#define memmove(dst, src, len) __memmove(dst, src, len)
44#define memset(s, c, n) __memset(s, c, n)
45
46#ifndef __NO_FORTIFY
47#define __NO_FORTIFY /* FORTIFY_SOURCE uses __builtin_memcpy, etc. */
48#endif
49
50#endif
51
52#ifdef CONFIG_PPC64
53#ifndef CONFIG_KASAN
54#define __HAVE_ARCH_MEMSET32
55#define __HAVE_ARCH_MEMSET64
56#define __HAVE_ARCH_MEMCPY_MCSAFE
57
58extern int memcpy_mcsafe(void *dst, const void *src, __kernel_size_t sz);
59extern void *__memset16(uint16_t *, uint16_t v, __kernel_size_t);
60extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t);
61extern void *__memset64(uint64_t *, uint64_t v, __kernel_size_t);
62
63static inline void *memset16(uint16_t *p, uint16_t v, __kernel_size_t n)
64{
65 return __memset16(p, v, n * 2);
66}
67
68static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n)
69{
70 return __memset32(p, v, n * 4);
71}
72
73static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n)
74{
75 return __memset64(p, v, n * 8);
76}
77#endif
78#else
79#ifndef CONFIG_KASAN
80#define __HAVE_ARCH_STRLEN
81#endif
82
83extern void *memset16(uint16_t *, uint16_t, __kernel_size_t);
84#endif
85#endif /* __KERNEL__ */
86
87#endif /* _ASM_POWERPC_STRING_H */