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- /*
- * Copyright (c) 2002 ARM Ltd
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the company may not be used to endorse or promote
- * products derived from this software without specific prior written
- * permission.
- *
- * THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * Adapted for uClibc from NetBSD strcmp.S, version 1.3 2003/04/05
- * by Erik Andersen <andersen@codepoet.org>
- */
- #include <features.h>
- #include <bits/arm_asm.h>
- .text
- .global strcmp
- .type strcmp,%function
- .align 4
- #if defined(__thumb__) && !defined(__thumb2__)
- .thumb_func
- strcmp:
- 1:
- ldrb r2, [r0]
- add r0, r0, #1
- ldrb r3, [r1]
- add r1, r1, #1
- cmp r2, #0
- beq 2f
- cmp r2, r3
- beq 1b
- 2:
- sub r0, r2, r3
- bx lr
- #else
- strcmp:
- 1:
- ldrb r2, [r0], #1
- ldrb r3, [r1], #1
- cmp r2, #1
- IT(t, cs)
- cmpcs r2, r3
- beq 1b
- sub r0, r2, r3
- #if defined(__USE_BX__)
- bx lr
- #else
- mov pc, lr
- #endif
- #endif
- .size strcmp,.-strcmp
- libc_hidden_def(strcmp)
- #ifndef __UCLIBC_HAS_LOCALE__
- strong_alias(strcmp,strcoll)
- libc_hidden_def(strcoll)
- #endif
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