tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __ASM_ARM_STRING_H
2#define __ASM_ARM_STRING_H
3
4/*
5 * We don't do inline string functions, since the
6 * optimised inline asm versions are not small.
7 */
8
9#define __HAVE_ARCH_STRRCHR
10extern char * strrchr(const char * s, int c);
11
12#define __HAVE_ARCH_STRCHR
13extern char * strchr(const char * s, int c);
14
15#define __HAVE_ARCH_MEMCPY
16extern void * memcpy(void *, const void *, __kernel_size_t);
17
18#define __HAVE_ARCH_MEMMOVE
19extern void * memmove(void *, const void *, __kernel_size_t);
20
21#define __HAVE_ARCH_MEMCHR
22extern void * memchr(const void *, int, __kernel_size_t);
23
24#define __HAVE_ARCH_MEMSET
25extern void * memset(void *, int, __kernel_size_t);
26
27#define __HAVE_ARCH_MEMSET32
28extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t);
29static inline void *memset32(uint32_t *p, uint32_t v, __kernel_size_t n)
30{
31 return __memset32(p, v, n * 4);
32}
33
34#define __HAVE_ARCH_MEMSET64
35extern void *__memset64(uint64_t *, uint32_t low, __kernel_size_t, uint32_t hi);
36static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n)
37{
38 return __memset64(p, v, n * 8, v >> 32);
39}
40
41extern void __memzero(void *ptr, __kernel_size_t n);
42
43#define memset(p,v,n) \
44 ({ \
45 void *__p = (p); size_t __n = n; \
46 if ((__n) != 0) { \
47 if (__builtin_constant_p((v)) && (v) == 0) \
48 __memzero((__p),(__n)); \
49 else \
50 memset((__p),(v),(__n)); \
51 } \
52 (__p); \
53 })
54
55#endif