aboutsummaryrefslogtreecommitdiffstats
path: root/arch/mips/include/asm/string.h
diff options
context:
space:
mode:
authorRalf Baechle <ralf@linux-mips.org>2008-09-16 13:48:51 -0400
committerRalf Baechle <ralf@linux-mips.org>2008-10-11 11:18:52 -0400
commit384740dc49ea651ba350704d13ff6be9976e37fe (patch)
treea6e80cad287ccae7a86d81bfa692fc96889c88ed /arch/mips/include/asm/string.h
parente8c7c482347574ecdd45c43e32c332d5fc2ece61 (diff)
MIPS: Move headfiles to new location below arch/mips/include
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/string.h')
-rw-r--r--arch/mips/include/asm/string.h143
1 files changed, 143 insertions, 0 deletions
diff --git a/arch/mips/include/asm/string.h b/arch/mips/include/asm/string.h
new file mode 100644
index 000000000000..436e3ad352d9
--- /dev/null
+++ b/arch/mips/include/asm/string.h
@@ -0,0 +1,143 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (c) 1994, 95, 96, 97, 98, 2000, 01 Ralf Baechle
7 * Copyright (c) 2000 by Silicon Graphics, Inc.
8 * Copyright (c) 2001 MIPS Technologies, Inc.
9 */
10#ifndef _ASM_STRING_H
11#define _ASM_STRING_H
12
13
14/*
15 * Most of the inline functions are rather naive implementations so I just
16 * didn't bother updating them for 64-bit ...
17 */
18#ifdef CONFIG_32BIT
19
20#ifndef IN_STRING_C
21
22#define __HAVE_ARCH_STRCPY
23static __inline__ char *strcpy(char *__dest, __const__ char *__src)
24{
25 char *__xdest = __dest;
26
27 __asm__ __volatile__(
28 ".set\tnoreorder\n\t"
29 ".set\tnoat\n"
30 "1:\tlbu\t$1,(%1)\n\t"
31 "addiu\t%1,1\n\t"
32 "sb\t$1,(%0)\n\t"
33 "bnez\t$1,1b\n\t"
34 "addiu\t%0,1\n\t"
35 ".set\tat\n\t"
36 ".set\treorder"
37 : "=r" (__dest), "=r" (__src)
38 : "0" (__dest), "1" (__src)
39 : "memory");
40
41 return __xdest;
42}
43
44#define __HAVE_ARCH_STRNCPY
45static __inline__ char *strncpy(char *__dest, __const__ char *__src, size_t __n)
46{
47 char *__xdest = __dest;
48
49 if (__n == 0)
50 return __xdest;
51
52 __asm__ __volatile__(
53 ".set\tnoreorder\n\t"
54 ".set\tnoat\n"
55 "1:\tlbu\t$1,(%1)\n\t"
56 "subu\t%2,1\n\t"
57 "sb\t$1,(%0)\n\t"
58 "beqz\t$1,2f\n\t"
59 "addiu\t%0,1\n\t"
60 "bnez\t%2,1b\n\t"
61 "addiu\t%1,1\n"
62 "2:\n\t"
63 ".set\tat\n\t"
64 ".set\treorder"
65 : "=r" (__dest), "=r" (__src), "=r" (__n)
66 : "0" (__dest), "1" (__src), "2" (__n)
67 : "memory");
68
69 return __xdest;
70}
71
72#define __HAVE_ARCH_STRCMP
73static __inline__ int strcmp(__const__ char *__cs, __const__ char *__ct)
74{
75 int __res;
76
77 __asm__ __volatile__(
78 ".set\tnoreorder\n\t"
79 ".set\tnoat\n\t"
80 "lbu\t%2,(%0)\n"
81 "1:\tlbu\t$1,(%1)\n\t"
82 "addiu\t%0,1\n\t"
83 "bne\t$1,%2,2f\n\t"
84 "addiu\t%1,1\n\t"
85 "bnez\t%2,1b\n\t"
86 "lbu\t%2,(%0)\n\t"
87#if defined(CONFIG_CPU_R3000)
88 "nop\n\t"
89#endif
90 "move\t%2,$1\n"
91 "2:\tsubu\t%2,$1\n"
92 "3:\t.set\tat\n\t"
93 ".set\treorder"
94 : "=r" (__cs), "=r" (__ct), "=r" (__res)
95 : "0" (__cs), "1" (__ct));
96
97 return __res;
98}
99
100#endif /* !defined(IN_STRING_C) */
101
102#define __HAVE_ARCH_STRNCMP
103static __inline__ int
104strncmp(__const__ char *__cs, __const__ char *__ct, size_t __count)
105{
106 int __res;
107
108 __asm__ __volatile__(
109 ".set\tnoreorder\n\t"
110 ".set\tnoat\n"
111 "1:\tlbu\t%3,(%0)\n\t"
112 "beqz\t%2,2f\n\t"
113 "lbu\t$1,(%1)\n\t"
114 "subu\t%2,1\n\t"
115 "bne\t$1,%3,3f\n\t"
116 "addiu\t%0,1\n\t"
117 "bnez\t%3,1b\n\t"
118 "addiu\t%1,1\n"
119 "2:\n\t"
120#if defined(CONFIG_CPU_R3000)
121 "nop\n\t"
122#endif
123 "move\t%3,$1\n"
124 "3:\tsubu\t%3,$1\n\t"
125 ".set\tat\n\t"
126 ".set\treorder"
127 : "=r" (__cs), "=r" (__ct), "=r" (__count), "=r" (__res)
128 : "0" (__cs), "1" (__ct), "2" (__count));
129
130 return __res;
131}
132#endif /* CONFIG_32BIT */
133
134#define __HAVE_ARCH_MEMSET
135extern void *memset(void *__s, int __c, size_t __count);
136
137#define __HAVE_ARCH_MEMCPY
138extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
139
140#define __HAVE_ARCH_MEMMOVE
141extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
142
143#endif /* _ASM_STRING_H */