/*
* linux/arch/arm/lib/strrchr.S
*
* Copyright (C) 1995-2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* ASM optimised string functions
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
.text
.align 5
ENTRY(strrchr)
mov r3, #0
1: ldrb r2, [r0], #1
teq r2, r1
subeq r3, r0, #1
teq r2, #0
bne 1b
mov r0, r3
mov pc, lr
ENDPROC(strrchr)
-
由 Catalin Marinas 提交于
This declaration specifies the "function" type and size for various assembly functions, mainly needed for generating the correct branch instructions in Thumb-2. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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