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1da177e4 LT |
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 | |
10 | extern char * strrchr(const char * s, int c); | |
11 | ||
12 | #define __HAVE_ARCH_STRCHR | |
13 | extern char * strchr(const char * s, int c); | |
14 | ||
15 | #define __HAVE_ARCH_MEMCPY | |
16 | extern void * memcpy(void *, const void *, __kernel_size_t); | |
17 | ||
18 | #define __HAVE_ARCH_MEMMOVE | |
19 | extern void * memmove(void *, const void *, __kernel_size_t); | |
20 | ||
21 | #define __HAVE_ARCH_MEMCHR | |
22 | extern void * memchr(const void *, int, __kernel_size_t); | |
23 | ||
24 | #define __HAVE_ARCH_MEMZERO | |
25 | #define __HAVE_ARCH_MEMSET | |
26 | extern void * memset(void *, int, __kernel_size_t); | |
27 | ||
28 | extern void __memzero(void *ptr, __kernel_size_t n); | |
29 | ||
30 | #define memset(p,v,n) \ | |
31 | ({ \ | |
2fac6f3f DS |
32 | void *__p = (p); size_t __n = n; \ |
33 | if ((__n) != 0) { \ | |
1da177e4 | 34 | if (__builtin_constant_p((v)) && (v) == 0) \ |
2fac6f3f | 35 | __memzero((__p),(__n)); \ |
1da177e4 | 36 | else \ |
2fac6f3f | 37 | memset((__p),(v),(__n)); \ |
1da177e4 | 38 | } \ |
2fac6f3f | 39 | (__p); \ |
1da177e4 LT |
40 | }) |
41 | ||
2fac6f3f DS |
42 | #define memzero(p,n) \ |
43 | ({ \ | |
44 | void *__p = (p); size_t __n = n; \ | |
45 | if ((__n) != 0) \ | |
46 | __memzero((__p),(__n)); \ | |
47 | (__p); \ | |
48 | }) | |
1da177e4 LT |
49 | |
50 | #endif |