mirror of
https://github.com/torvalds/linux.git
synced 2024-11-28 15:11:31 +00:00
d99cf715a0
"extern inline" doesn't make sense. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
125 lines
2.7 KiB
C
125 lines
2.7 KiB
C
/*
|
|
* include/asm-xtensa/string.h
|
|
*
|
|
* These trivial string functions are considered part of the public domain.
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 2001 - 2005 Tensilica Inc.
|
|
*/
|
|
|
|
/* We should optimize these. See arch/xtensa/lib/strncpy_user.S */
|
|
|
|
#ifndef _XTENSA_STRING_H
|
|
#define _XTENSA_STRING_H
|
|
|
|
#define __HAVE_ARCH_STRCPY
|
|
static inline char *strcpy(char *__dest, const char *__src)
|
|
{
|
|
register char *__xdest = __dest;
|
|
unsigned long __dummy;
|
|
|
|
__asm__ __volatile__("1:\n\t"
|
|
"l8ui %2, %1, 0\n\t"
|
|
"s8i %2, %0, 0\n\t"
|
|
"addi %1, %1, 1\n\t"
|
|
"addi %0, %0, 1\n\t"
|
|
"bnez %2, 1b\n\t"
|
|
: "=r" (__dest), "=r" (__src), "=&r" (__dummy)
|
|
: "0" (__dest), "1" (__src)
|
|
: "memory");
|
|
|
|
return __xdest;
|
|
}
|
|
|
|
#define __HAVE_ARCH_STRNCPY
|
|
static inline char *strncpy(char *__dest, const char *__src, size_t __n)
|
|
{
|
|
register char *__xdest = __dest;
|
|
unsigned long __dummy;
|
|
|
|
if (__n == 0)
|
|
return __xdest;
|
|
|
|
__asm__ __volatile__(
|
|
"1:\n\t"
|
|
"l8ui %2, %1, 0\n\t"
|
|
"s8i %2, %0, 0\n\t"
|
|
"addi %1, %1, 1\n\t"
|
|
"addi %0, %0, 1\n\t"
|
|
"beqz %2, 2f\n\t"
|
|
"bne %1, %5, 1b\n"
|
|
"2:"
|
|
: "=r" (__dest), "=r" (__src), "=&r" (__dummy)
|
|
: "0" (__dest), "1" (__src), "r" (__src+__n)
|
|
: "memory");
|
|
|
|
return __xdest;
|
|
}
|
|
|
|
#define __HAVE_ARCH_STRCMP
|
|
static inline int strcmp(const char *__cs, const char *__ct)
|
|
{
|
|
register int __res;
|
|
unsigned long __dummy;
|
|
|
|
__asm__ __volatile__(
|
|
"1:\n\t"
|
|
"l8ui %3, %1, 0\n\t"
|
|
"addi %1, %1, 1\n\t"
|
|
"l8ui %2, %0, 0\n\t"
|
|
"addi %0, %0, 1\n\t"
|
|
"beqz %2, 2f\n\t"
|
|
"beq %2, %3, 1b\n"
|
|
"2:\n\t"
|
|
"sub %2, %3, %2"
|
|
: "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy)
|
|
: "0" (__cs), "1" (__ct));
|
|
|
|
return __res;
|
|
}
|
|
|
|
#define __HAVE_ARCH_STRNCMP
|
|
static inline int strncmp(const char *__cs, const char *__ct, size_t __n)
|
|
{
|
|
register int __res;
|
|
unsigned long __dummy;
|
|
|
|
__asm__ __volatile__(
|
|
"mov %2, %3\n"
|
|
"1:\n\t"
|
|
"beq %0, %6, 2f\n\t"
|
|
"l8ui %3, %1, 0\n\t"
|
|
"addi %1, %1, 1\n\t"
|
|
"l8ui %2, %0, 0\n\t"
|
|
"addi %0, %0, 1\n\t"
|
|
"beqz %2, 2f\n\t"
|
|
"beqz %3, 2f\n\t"
|
|
"beq %2, %3, 1b\n"
|
|
"2:\n\t"
|
|
"sub %2, %3, %2"
|
|
: "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy)
|
|
: "0" (__cs), "1" (__ct), "r" (__cs+__n));
|
|
|
|
return __res;
|
|
}
|
|
|
|
#define __HAVE_ARCH_MEMSET
|
|
extern void *memset(void *__s, int __c, size_t __count);
|
|
|
|
#define __HAVE_ARCH_MEMCPY
|
|
extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
|
|
|
|
#define __HAVE_ARCH_MEMMOVE
|
|
extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
|
|
|
|
/* Don't build bcopy at all ... */
|
|
#define __HAVE_ARCH_BCOPY
|
|
|
|
#define __HAVE_ARCH_MEMSCAN
|
|
#define memscan memchr
|
|
|
|
#endif /* _XTENSA_STRING_H */
|