swh:1:snp:3c665ee4f67729f27f2e40193ab88e7298cf0fef
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Tip revision: 1c163f4c7b3f621efff9b28a47abb36f7378d783 authored by Linus Torvalds on 03 March 2019, 23:21:29 UTC
Linux 5.0
Tip revision: 1c163f4
strchr.S
/*
 *  linux/arch/arm/lib/strchr.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(strchr)
		and	r1, r1, #0xff
1:		ldrb	r2, [r0], #1
		teq	r2, r1
		teqne	r2, #0
		bne	1b
		teq	r2, r1
		movne	r0, #0
		subeq	r0, r0, #1
		ret	lr
ENDPROC(strchr)
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