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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
14static 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
33static 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
59static 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
85extern int strncmp(const char *__cs, const char *__ct, size_t __n);
86
87#undef __HAVE_ARCH_MEMSET
88extern void *memset(void *__s, int __c, size_t __count);
89
90#undef __HAVE_ARCH_MEMCPY
91extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
92
93#undef __HAVE_ARCH_MEMMOVE
94extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
95
96#undef __HAVE_ARCH_MEMCHR
97extern void *memchr(const void *__s, int __c, size_t __n);
98
99#undef __HAVE_ARCH_STRLEN
100extern size_t strlen(const char *);
101
102/* arch/sh/lib/strcasecmp.c */
103extern 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 */