1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _M68K_STRING_H_
3 #define _M68K_STRING_H_
5 #include <linux/types.h>
6 #include <linux/compiler.h>
8 #define __HAVE_ARCH_STRNLEN
9 static inline size_t strnlen(const char *s, size_t count)
20 : "+a" (sc), "+d" (count));
24 #define __HAVE_ARCH_STRNCPY
25 static inline char *strncpy(char *dest, const char *src, size_t n)
31 "1: move.b (%1),(%0)+\n"
36 : "+a" (dest), "+a" (src), "+d" (n)
41 #ifndef CONFIG_COLDFIRE
42 #define __HAVE_ARCH_STRCMP
43 static inline int strcmp(const char *cs, const char *ct)
48 "1: move.b (%0)+,%2\n" /* get *cs */
49 " cmp.b (%1)+,%2\n" /* compare a byte */
50 " jne 2f\n" /* not equal, break out */
51 " tst.b %2\n" /* at end of cs? */
52 " jne 1b\n" /* no, keep going */
53 " jra 3f\n" /* strings are equal */
54 "2: sub.b -(%1),%2\n" /* *cs - *ct */
56 : "+a" (cs), "+a" (ct), "=d" (res));
59 #endif /* CONFIG_COLDFIRE */
61 #define __HAVE_ARCH_MEMMOVE
62 extern void *memmove(void *, const void *, __kernel_size_t);
64 #define memcmp(d, s, n) __builtin_memcmp(d, s, n)
66 #define __HAVE_ARCH_MEMSET
67 extern void *memset(void *, int, __kernel_size_t);
68 #define memset(d, c, n) __builtin_memset(d, c, n)
70 #define __HAVE_ARCH_MEMCPY
71 extern void *memcpy(void *, const void *, __kernel_size_t);
72 #define memcpy(d, s, n) __builtin_memcpy(d, s, n)
74 #endif /* _M68K_STRING_H_ */