diff options
Diffstat (limited to 'include/asm-mips')
| -rw-r--r-- | include/asm-mips/string.h | 156 |
1 files changed, 19 insertions, 137 deletions
diff --git a/include/asm-mips/string.h b/include/asm-mips/string.h index 463a111..c42ad82 100644 --- a/include/asm-mips/string.h +++ b/include/asm-mips/string.h @@ -1,126 +1,31 @@ -/* $Id: string.h,v 1.13 2000/02/19 14:12:14 harald Exp $ - * +/* * 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) 1994, 1995, 1996, 1997, 1998 by Ralf Baechle + * Copyright (c) 1994, 95, 96, 97, 98, 2000, 01 Ralf Baechle + * Copyright (c) 2000 by Silicon Graphics, Inc. + * Copyright (c) 2001 MIPS Technologies, Inc. */ -#ifndef __ASM_MIPS_STRING_H -#define __ASM_MIPS_STRING_H - -#include <linux/config.h> - -#define __HAVE_ARCH_STRCPY -extern __inline__ char *strcpy(char *__dest, __const__ char *__src) -{ - char *__xdest = __dest; - - __asm__ __volatile__( - ".set\tnoreorder\n\t" - ".set\tnoat\n" - "1:\tlbu\t$1,(%1)\n\t" - "addiu\t%1,1\n\t" - "sb\t$1,(%0)\n\t" - "bnez\t$1,1b\n\t" - "addiu\t%0,1\n\t" - ".set\tat\n\t" - ".set\treorder" - : "=r" (__dest), "=r" (__src) - : "0" (__dest), "1" (__src) - : "$1","memory"); - - return __xdest; -} - -#define __HAVE_ARCH_STRNCPY -extern __inline__ char *strncpy(char *__dest, __const__ char *__src, size_t __n) -{ - char *__xdest = __dest; - - if (__n == 0) - return __xdest; - - __asm__ __volatile__( - ".set\tnoreorder\n\t" - ".set\tnoat\n" - "1:\tlbu\t$1,(%1)\n\t" - "subu\t%2,1\n\t" - "sb\t$1,(%0)\n\t" - "beqz\t$1,2f\n\t" - "addiu\t%0,1\n\t" - "bnez\t%2,1b\n\t" - "addiu\t%1,1\n" - "2:\n\t" - ".set\tat\n\t" - ".set\treorder" - : "=r" (__dest), "=r" (__src), "=r" (__n) - : "0" (__dest), "1" (__src), "2" (__n) - : "$1","memory"); +#ifndef _ASM_STRING_H +#define _ASM_STRING_H - return __dest; -} - -#define __HAVE_ARCH_STRCMP -extern __inline__ int strcmp(__const__ char *__cs, __const__ char *__ct) -{ - int __res; - - __asm__ __volatile__( - ".set\tnoreorder\n\t" - ".set\tnoat\n\t" - "lbu\t%2,(%0)\n" - "1:\tlbu\t$1,(%1)\n\t" - "addiu\t%0,1\n\t" - "bne\t$1,%2,2f\n\t" - "addiu\t%1,1\n\t" - "bnez\t%2,1b\n\t" - "lbu\t%2,(%0)\n\t" -#if defined(CONFIG_CPU_R3000) - "nop\n\t" -#endif - "move\t%2,$1\n" - "2:\tsubu\t%2,$1\n" - "3:\t.set\tat\n\t" - ".set\treorder" - : "=r" (__cs), "=r" (__ct), "=r" (__res) - : "0" (__cs), "1" (__ct) - : "$1"); +/* + * We don't do inline string functions, since the + * optimised inline asm versions are not small. + */ - return __res; -} +#undef __HAVE_ARCH_STRCPY +extern char *strcpy(char *__dest, __const__ char *__src); -#define __HAVE_ARCH_STRNCMP -extern __inline__ int -strncmp(__const__ char *__cs, __const__ char *__ct, size_t __count) -{ - int __res; +#undef __HAVE_ARCH_STRNCPY +extern char *strncpy(char *__dest, __const__ char *__src, size_t __n); - __asm__ __volatile__( - ".set\tnoreorder\n\t" - ".set\tnoat\n" - "1:\tlbu\t%3,(%0)\n\t" - "beqz\t%2,2f\n\t" - "lbu\t$1,(%1)\n\t" - "subu\t%2,1\n\t" - "bne\t$1,%3,3f\n\t" - "addiu\t%0,1\n\t" - "bnez\t%3,1b\n\t" - "addiu\t%1,1\n" - "2:\n\t" -#if defined(CONFIG_CPU_R3000) - "nop\n\t" -#endif - "move\t%3,$1\n" - "3:\tsubu\t%3,$1\n\t" - ".set\tat\n\t" - ".set\treorder" - : "=r" (__cs), "=r" (__ct), "=r" (__count), "=r" (__res) - : "0" (__cs), "1" (__ct), "2" (__count) - : "$1"); +#undef __HAVE_ARCH_STRCMP +extern int strcmp(__const__ char *__cs, __const__ char *__ct); - return __res; -} +#undef __HAVE_ARCH_STRNCMP +extern int strncmp(__const__ char *__cs, __const__ char *__ct, size_t __count); #undef __HAVE_ARCH_MEMSET extern void *memset(void *__s, int __c, size_t __count); @@ -131,27 +36,4 @@ extern void *memcpy(void *__to, __const__ void *__from, size_t __n); #undef __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 -extern __inline__ void *memscan(void *__addr, int __c, size_t __size) -{ - char *__end = (char *)__addr + __size; - - __asm__(".set\tpush\n\t" - ".set\tnoat\n\t" - ".set\treorder\n\t" - "1:\tbeq\t%0,%1,2f\n\t" - "addiu\t%0,1\n\t" - "lb\t$1,-1(%0)\n\t" - "bne\t$1,%4,1b\n" - "2:\t.set\tpop" - : "=r" (__addr), "=r" (__end) - : "0" (__addr), "1" (__end), "r" (__c) - : "$1"); - - return __addr; -} - -#endif /* __ASM_MIPS_STRING_H */ +#endif /* _ASM_STRING_H */ |