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 54