1#ifndef _M68KNOMMU_STRING_H_ 2#define _M68KNOMMU_STRING_H_ 3 4#ifdef __KERNEL__ /* only set these up for kernel code */ 5 6#include <asm/setup.h> 7#include <asm/page.h> 8 9#define __HAVE_ARCH_STRCPY 10static inline char * strcpy(char * dest,const char *src) 11{ 12 char *xdest = dest; 13 14 __asm__ __volatile__ 15 ("1:\tmoveb %1@+,%0@+\n\t" 16 "jne 1b" 17 : "=a" (dest), "=a" (src) 18 : "0" (dest), "1" (src) : "memory"); 19 return xdest; 20} 21 22#define __HAVE_ARCH_STRNCPY 23static inline char * strncpy(char *dest, const char *src, size_t n) 24{ 25 char *xdest = dest; 26 27 if (n == 0) 28 return xdest; 29 30 __asm__ __volatile__ 31 ("1:\tmoveb %1@+,%0@+\n\t" 32 "jeq 2f\n\t" 33 "subql #1,%2\n\t" 34 "jne 1b\n\t" 35 "2:" 36 : "=a" (dest), "=a" (src), "=d" (n) 37 : "0" (dest), "1" (src), "2" (n) 38 : "memory"); 39 return xdest; 40} 41 42 43#ifndef CONFIG_COLDFIRE 44 45#define __HAVE_ARCH_STRCMP 46static inline int strcmp(const char * cs,const char * ct) 47{ 48 char __res; 49 50 __asm__ 51 ("1:\tmoveb %0@+,%2\n\t" /* get *cs */ 52 "cmpb %1@+,%2\n\t" /* compare a byte */ 53 "jne 2f\n\t" /* not equal, break out */ 54 "tstb %2\n\t" /* at end of cs? */ 55 "jne 1b\n\t" /* no, keep going */ 56 "jra 3f\n\t" /* strings are equal */ 57 "2:\tsubb %1@-,%2\n\t" /* *cs - *ct */ 58 "3:" 59 : "=a" (cs), "=a" (ct), "=d" (__res) 60 : "0" (cs), "1" (ct)); 61 62 return __res; 63} 64 65#define __HAVE_ARCH_STRNCMP 66static inline int strncmp(const char * cs,const char * ct,size_t count) 67{ 68 char __res; 69 70 if (!count) 71 return 0; 72 __asm__ 73 ("1:\tmovb %0@+,%3\n\t" /* get *cs */ 74 "cmpb %1@+,%3\n\t" /* compare a byte */ 75 "jne 3f\n\t" /* not equal, break out */ 76 "tstb %3\n\t" /* at end of cs? */ 77 "jeq 4f\n\t" /* yes, all done */ 78 "subql #1,%2\n\t" /* no, adjust count */ 79 "jne 1b\n\t" /* more to do, keep going */ 80 "2:\tmoveq #0,%3\n\t" /* strings are equal */ 81 "jra 4f\n\t" 82 "3:\tsubb %1@-,%3\n\t" /* *cs - *ct */ 83 "4:" 84 : "=a" (cs), "=a" (ct), "=d" (count), "=d" (__res) 85 : "0" (cs), "1" (ct), "2" (count)); 86 return __res; 87} 88 89#endif /* CONFIG_COLDFIRE */ 90 91#define __HAVE_ARCH_MEMSET 92extern void * memset(void * s, int c, size_t count); 93 94#define __HAVE_ARCH_MEMCPY 95extern void * memcpy(void *d, const void *s, size_t count); 96 97#else /* KERNEL */ 98 99/* 100 * let user libraries deal with these, 101 * IMHO the kernel has no place defining these functions for user apps 102 */ 103 104#define __HAVE_ARCH_STRCPY 1 105#define __HAVE_ARCH_STRNCPY 1 106#define __HAVE_ARCH_STRCAT 1 107#define __HAVE_ARCH_STRNCAT 1 108#define __HAVE_ARCH_STRCMP 1 109#define __HAVE_ARCH_STRNCMP 1 110#define __HAVE_ARCH_STRNICMP 1 111#define __HAVE_ARCH_STRCHR 1 112#define __HAVE_ARCH_STRRCHR 1 113#define __HAVE_ARCH_STRSTR 1 114#define __HAVE_ARCH_STRLEN 1 115#define __HAVE_ARCH_STRNLEN 1 116#define __HAVE_ARCH_MEMSET 1 117#define __HAVE_ARCH_MEMCPY 1 118#define __HAVE_ARCH_MEMMOVE 1 119#define __HAVE_ARCH_MEMSCAN 1 120#define __HAVE_ARCH_MEMCMP 1 121#define __HAVE_ARCH_MEMCHR 1 122#define __HAVE_ARCH_STRTOK 1 123 124#endif /* KERNEL */ 125 126#endif /* _M68K_STRING_H_ */ 127