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