2 * include/asm-xtensa/string.h
4 * These trivial string functions are considered part of the public domain.
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
10 * Copyright (C) 2001 - 2005 Tensilica Inc.
13 /* We should optimize these. See arch/xtensa/lib/strncpy_user.S */
15 #ifndef _XTENSA_STRING_H
16 #define _XTENSA_STRING_H
18 #define __HAVE_ARCH_STRCPY
19 extern __inline__ char *strcpy(char *__dest, const char *__src)
21 register char *__xdest = __dest;
22 unsigned long __dummy;
24 __asm__ __volatile__("1:\n\t"
30 : "=r" (__dest), "=r" (__src), "=&r" (__dummy)
31 : "0" (__dest), "1" (__src)
37 #define __HAVE_ARCH_STRNCPY
38 extern __inline__ char *strncpy(char *__dest, const char *__src, size_t __n)
40 register char *__xdest = __dest;
41 unsigned long __dummy;
55 : "=r" (__dest), "=r" (__src), "=&r" (__dummy)
56 : "0" (__dest), "1" (__src), "r" (__src+__n)
62 #define __HAVE_ARCH_STRCMP
63 extern __inline__ int strcmp(const char *__cs, const char *__ct)
66 unsigned long __dummy;
78 : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy)
79 : "0" (__cs), "1" (__ct));
84 #define __HAVE_ARCH_STRNCMP
85 extern __inline__ int strncmp(const char *__cs, const char *__ct, size_t __n)
88 unsigned long __dummy;
103 : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy)
104 : "0" (__cs), "1" (__ct), "r" (__cs+__n));
109 #define __HAVE_ARCH_MEMSET
110 extern void *memset(void *__s, int __c, size_t __count);
112 #define __HAVE_ARCH_MEMCPY
113 extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
115 #define __HAVE_ARCH_MEMMOVE
116 extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
118 /* Don't build bcopy at all ... */
119 #define __HAVE_ARCH_BCOPY
121 #define __HAVE_ARCH_MEMSCAN
122 #define memscan memchr
124 #endif /* _XTENSA_STRING_H */