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 #if CONFIG_IS_ENABLED(USE_ARCH_MEMCPY) 18 #define __HAVE_ARCH_MEMCPY 19 #endif 20 extern void * memcpy(void *, const void *, __kernel_size_t); 21 22 #if CONFIG_IS_ENABLED(USE_ARCH_MEMMOVE) 23 #define __HAVE_ARCH_MEMMOVE 24 #else 25 #undef __HAVE_ARCH_MEMMOVE 26 #endif 27 extern void * memmove(void *, const void *, __kernel_size_t); 28 29 #undef __HAVE_ARCH_MEMCHR 30 extern void * memchr(const void *, int, __kernel_size_t); 31 32 #undef __HAVE_ARCH_MEMZERO 33 #if CONFIG_IS_ENABLED(USE_ARCH_MEMSET) 34 #define __HAVE_ARCH_MEMSET 35 #endif 36 extern void * memset(void *, int, __kernel_size_t); 37 38 #if 0 39 extern void __memzero(void *ptr, __kernel_size_t n); 40 41 #define memset(p,v,n) \ 42 ({ \ 43 if ((n) != 0) { \ 44 if (__builtin_constant_p((v)) && (v) == 0) \ 45 __memzero((p),(n)); \ 46 else \ 47 memset((p),(v),(n)); \ 48 } \ 49 (p); \ 50 }) 51 52 #define memzero(p,n) ({ if ((n) != 0) __memzero((p),(n)); (p); }) 53 #else 54 extern void memzero(void *ptr, __kernel_size_t n); 55 #endif 56 57 #endif 58