linux-hardened/arch/arm/lib/strrchr.S
Catalin Marinas 93ed397011 [ARM] 5227/1: Add the ENDPROC declarations to the .S files
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: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-09-01 12:06:34 +01:00

26 lines
533 B
ArmAsm

/*
* 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)