1 #ifndef __ASM_SH_STRING_H 2 #define __ASM_SH_STRING_H 3 4 /* 5 * Copyright (C) 1999 Niibe Yutaka 6 * But consider these trivial functions to be public domain. 7 * 8 * from linux kernel code. 9 */ 10 11 #ifdef __KERNEL__ /* only set these up for kernel code */ 12 13 #define __HAVE_ARCH_STRCPY strcpy(char * __dest,const char * __src)14 static inline char *strcpy(char *__dest, const char *__src) 15 { 16 register char *__xdest = __dest; 17 unsigned long __dummy; 18 19 __asm__ __volatile__("1:\n\t" 20 "mov.b @%1+, %2\n\t" 21 "mov.b %2, @%0\n\t" 22 "cmp/eq #0, %2\n\t" 23 "bf/s 1b\n\t" 24 " add #1, %0\n\t" 25 : "=r" (__dest), "=r" (__src), "=&z" (__dummy) 26 : "0" (__dest), "1" (__src) 27 : "memory", "t"); 28 29 return __xdest; 30 } 31 32 #define __HAVE_ARCH_STRNCPY strncpy(char * __dest,const char * __src,size_t __n)33 static inline char *strncpy(char *__dest, const char *__src, size_t __n) 34 { 35 register char *__xdest = __dest; 36 unsigned long __dummy; 37 38 if (__n == 0) 39 return __xdest; 40 41 __asm__ __volatile__( 42 "1:\n" 43 "mov.b @%1+, %2\n\t" 44 "mov.b %2, @%0\n\t" 45 "cmp/eq #0, %2\n\t" 46 "bt/s 2f\n\t" 47 " cmp/eq %5,%1\n\t" 48 "bf/s 1b\n\t" 49 " add #1, %0\n" 50 "2:" 51 : "=r" (__dest), "=r" (__src), "=&z" (__dummy) 52 : "0" (__dest), "1" (__src), "r" (__src+__n) 53 : "memory", "t"); 54 55 return __xdest; 56 } 57 58 #define __HAVE_ARCH_STRCMP strcmp(const char * __cs,const char * __ct)59 static inline int strcmp(const char *__cs, const char *__ct) 60 { 61 register int __res; 62 unsigned long __dummy; 63 64 __asm__ __volatile__( 65 "mov.b @%1+, %3\n" 66 "1:\n\t" 67 "mov.b @%0+, %2\n\t" 68 "cmp/eq #0, %3\n\t" 69 "bt 2f\n\t" 70 "cmp/eq %2, %3\n\t" 71 "bt/s 1b\n\t" 72 " mov.b @%1+, %3\n\t" 73 "add #-2, %1\n\t" 74 "mov.b @%1, %3\n\t" 75 "sub %3, %2\n" 76 "2:" 77 : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&z" (__dummy) 78 : "0" (__cs), "1" (__ct) 79 : "t"); 80 81 return __res; 82 } 83 84 #undef __HAVE_ARCH_STRNCMP 85 extern int strncmp(const char *__cs, const char *__ct, size_t __n); 86 87 #undef __HAVE_ARCH_MEMSET 88 extern void *memset(void *__s, int __c, size_t __count); 89 90 #undef __HAVE_ARCH_MEMCPY 91 extern void *memcpy(void *__to, __const__ void *__from, size_t __n); 92 93 #undef __HAVE_ARCH_MEMMOVE 94 extern void *memmove(void *__dest, __const__ void *__src, size_t __n); 95 96 #undef __HAVE_ARCH_MEMCHR 97 extern void *memchr(const void *__s, int __c, size_t __n); 98 99 #undef __HAVE_ARCH_STRLEN 100 extern size_t strlen(const char *); 101 102 /* arch/sh/lib/strcasecmp.c */ 103 extern int strcasecmp(const char *, const char *); 104 105 #else /* KERNEL */ 106 107 /* 108 * let user libraries deal with these, 109 * IMHO the kernel has no place defining these functions for user apps 110 */ 111 112 #define __HAVE_ARCH_STRCPY 1 113 #define __HAVE_ARCH_STRNCPY 1 114 #define __HAVE_ARCH_STRCAT 1 115 #define __HAVE_ARCH_STRNCAT 1 116 #define __HAVE_ARCH_STRCMP 1 117 #define __HAVE_ARCH_STRNCMP 1 118 #define __HAVE_ARCH_STRNICMP 1 119 #define __HAVE_ARCH_STRCHR 1 120 #define __HAVE_ARCH_STRRCHR 1 121 #define __HAVE_ARCH_STRSTR 1 122 #define __HAVE_ARCH_STRLEN 1 123 #define __HAVE_ARCH_STRNLEN 1 124 #define __HAVE_ARCH_MEMSET 1 125 #define __HAVE_ARCH_MEMCPY 1 126 #define __HAVE_ARCH_MEMMOVE 1 127 #define __HAVE_ARCH_MEMSCAN 1 128 #define __HAVE_ARCH_MEMCMP 1 129 #define __HAVE_ARCH_MEMCHR 1 130 #define __HAVE_ARCH_STRTOK 1 131 132 #endif /* KERNEL */ 133 #endif /* __ASM_SH_STRING_H */ 134