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_MEMSET 25 extern void * memset(void *, int, __kernel_size_t); 26 27 #define __HAVE_ARCH_MEMSET32 28 extern void *__memset32(uint32_t *, uint32_t v, __kernel_size_t); 29 static 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 35 extern void *__memset64(uint64_t *, uint32_t low, __kernel_size_t, uint32_t hi); 36 static 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 41 extern 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 56