#ifndef _M68K_STRING_H_ #define _M68K_STRING_H_ #include <linux/types.h> #include <linux/compiler.h> #define __HAVE_ARCH_STRNLEN static inline size_t strnlen(const char *s, size_t count) { const char *sc = s; asm volatile ("\n" "1: subq.l #1,%1\n" " jcs 2f\n" " tst.b (%0)+\n" " jne 1b\n" " subq.l #1,%0\n" "2:" : "+a" (sc), "+d" (count)); return sc - s; } #define __HAVE_ARCH_STRNCPY static inline char *strncpy(char *dest, const char *src, size_t n) { char *xdest = dest; asm volatile ("\n" " jra 2f\n" "1: move.b (%1),(%0)+\n" " jeq 2f\n" " addq.l #1,%1\n" "2: subq.l #1,%2\n" " jcc 1b\n" : "+a" (dest), "+a" (src), "+d" (n) : : "memory"); return xdest; } #ifndef [31mCONFIG_COLDFIRE[0m #define __HAVE_ARCH_STRCMP static inline int strcmp(const char *cs, const char *ct) { char res; asm ("\n" "1: move.b (%0)+,%2\n" /* get *cs */ " cmp.b (%1)+,%2\n" /* compare a byte */ " jne 2f\n" /* not equal, break out */ " tst.b %2\n" /* at end of cs? */ " jne 1b\n" /* no, keep going */ " jra 3f\n" /* strings are equal */ "2: sub.b -(%1),%2\n" /* *cs - *ct */ "3:" : "+a" (cs), "+a" (ct), "=d" (res)); return res; } #endif /* CONFIG_COLDFIRE */ #define __HAVE_ARCH_MEMMOVE extern void *memmove(void *, const void *, __kernel_size_t); #define memcmp(d, s, n) __builtin_memcmp(d, s, n) #define __HAVE_ARCH_MEMSET extern void *memset(void *, int, __kernel_size_t); #define memset(d, c, n) __builtin_memset(d, c, n) #define __HAVE_ARCH_MEMCPY extern void *memcpy(void *, const void *, __kernel_size_t); #define memcpy(d, s, n) __builtin_memcpy(d, s, n) #endif /* _M68K_STRING_H_ */ |