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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 | #ifndef _M68KNOMMU_STRING_H_ #define _M68KNOMMU_STRING_H_ #ifdef __KERNEL__ /* only set these up for kernel code */ #include <asm/setup.h> #include <asm/page.h> #define __HAVE_ARCH_STRCPY static inline char * strcpy(char * dest,const char *src) { char *xdest = dest; __asm__ __volatile__ ("1:\tmoveb %1@+,%0@+\n\t" "jne 1b" : "=a" (dest), "=a" (src) : "0" (dest), "1" (src) : "memory"); return xdest; } #define __HAVE_ARCH_STRNCPY static inline char * strncpy(char *dest, const char *src, size_t n) { char *xdest = dest; if (n == 0) return xdest; __asm__ __volatile__ ("1:\tmoveb %1@+,%0@+\n\t" "jeq 2f\n\t" "subql #1,%2\n\t" "jne 1b\n\t" "2:" : "=a" (dest), "=a" (src), "=d" (n) : "0" (dest), "1" (src), "2" (n) : "memory"); return xdest; } #ifndef CONFIG_COLDFIRE #define __HAVE_ARCH_STRCMP static inline int strcmp(const char * cs,const char * ct) { char __res; __asm__ ("1:\tmoveb %0@+,%2\n\t" /* get *cs */ "cmpb %1@+,%2\n\t" /* compare a byte */ "jne 2f\n\t" /* not equal, break out */ "tstb %2\n\t" /* at end of cs? */ "jne 1b\n\t" /* no, keep going */ "jra 3f\n\t" /* strings are equal */ "2:\tsubb %1@-,%2\n\t" /* *cs - *ct */ "3:" : "=a" (cs), "=a" (ct), "=d" (__res) : "0" (cs), "1" (ct)); return __res; } #define __HAVE_ARCH_STRNCMP static inline int strncmp(const char * cs,const char * ct,size_t count) { char __res; if (!count) return 0; __asm__ ("1:\tmovb %0@+,%3\n\t" /* get *cs */ "cmpb %1@+,%3\n\t" /* compare a byte */ "jne 3f\n\t" /* not equal, break out */ "tstb %3\n\t" /* at end of cs? */ "jeq 4f\n\t" /* yes, all done */ "subql #1,%2\n\t" /* no, adjust count */ "jne 1b\n\t" /* more to do, keep going */ "2:\tmoveq #0,%3\n\t" /* strings are equal */ "jra 4f\n\t" "3:\tsubb %1@-,%3\n\t" /* *cs - *ct */ "4:" : "=a" (cs), "=a" (ct), "=d" (count), "=d" (__res) : "0" (cs), "1" (ct), "2" (count)); return __res; } #endif /* CONFIG_COLDFIRE */ #define __HAVE_ARCH_MEMSET extern void * memset(void * s, int c, size_t count); #define __HAVE_ARCH_MEMCPY extern void * memcpy(void *d, const void *s, size_t count); #else /* KERNEL */ /* * let user libraries deal with these, * IMHO the kernel has no place defining these functions for user apps */ #define __HAVE_ARCH_STRCPY 1 #define __HAVE_ARCH_STRNCPY 1 #define __HAVE_ARCH_STRCAT 1 #define __HAVE_ARCH_STRNCAT 1 #define __HAVE_ARCH_STRCMP 1 #define __HAVE_ARCH_STRNCMP 1 #define __HAVE_ARCH_STRNICMP 1 #define __HAVE_ARCH_STRCHR 1 #define __HAVE_ARCH_STRRCHR 1 #define __HAVE_ARCH_STRSTR 1 #define __HAVE_ARCH_STRLEN 1 #define __HAVE_ARCH_STRNLEN 1 #define __HAVE_ARCH_MEMSET 1 #define __HAVE_ARCH_MEMCPY 1 #define __HAVE_ARCH_MEMMOVE 1 #define __HAVE_ARCH_MEMSCAN 1 #define __HAVE_ARCH_MEMCMP 1 #define __HAVE_ARCH_MEMCHR 1 #define __HAVE_ARCH_STRTOK 1 #endif /* KERNEL */ #endif /* _M68K_STRING_H_ */ |