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Merge branch 'master' of git://git.denx.de/u-boot-arm
[u-boot] / arch / arm / include / asm / string.h
1 #ifndef __ASM_ARM_STRING_H
2 #define __ASM_ARM_STRING_H
3
4 #include <config.h>
5
6 /*
7  * We don't do inline string functions, since the
8  * optimised inline asm versions are not small.
9  */
10
11 #undef __HAVE_ARCH_STRRCHR
12 extern char * strrchr(const char * s, int c);
13
14 #undef __HAVE_ARCH_STRCHR
15 extern char * strchr(const char * s, int c);
16
17 #ifdef CONFIG_USE_ARCH_MEMCPY
18 #define __HAVE_ARCH_MEMCPY
19 #endif
20 extern void * memcpy(void *, const void *, __kernel_size_t);
21
22 #undef __HAVE_ARCH_MEMMOVE
23 extern void * memmove(void *, const void *, __kernel_size_t);
24
25 #undef __HAVE_ARCH_MEMCHR
26 extern void * memchr(const void *, int, __kernel_size_t);
27
28 #undef __HAVE_ARCH_MEMZERO
29 #ifdef CONFIG_USE_ARCH_MEMSET
30 #define __HAVE_ARCH_MEMSET
31 #endif
32 extern void * memset(void *, int, __kernel_size_t);
33
34 #if 0
35 extern void __memzero(void *ptr, __kernel_size_t n);
36
37 #define memset(p,v,n)                                                   \
38         ({                                                              \
39                 if ((n) != 0) {                                         \
40                         if (__builtin_constant_p((v)) && (v) == 0)      \
41                                 __memzero((p),(n));                     \
42                         else                                            \
43                                 memset((p),(v),(n));                    \
44                 }                                                       \
45                 (p);                                                    \
46         })
47
48 #define memzero(p,n) ({ if ((n) != 0) __memzero((p),(n)); (p); })
49 #else
50 extern void memzero(void *ptr, __kernel_size_t n);
51 #endif
52
53 #endif