Commit | Line | Data |
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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
1da177e4 LT |
2 | /* |
3 | * linux/arch/arm/lib/strchr.S | |
4 | * | |
5 | * Copyright (C) 1995-2000 Russell King | |
6 | * | |
1da177e4 LT |
7 | * ASM optimised string functions |
8 | */ | |
9 | #include <linux/linkage.h> | |
10 | #include <asm/assembler.h> | |
11 | ||
12 | .text | |
13 | .align 5 | |
14 | ENTRY(strchr) | |
15 | and r1, r1, #0xff | |
16 | 1: ldrb r2, [r0], #1 | |
17 | teq r2, r1 | |
18 | teqne r2, #0 | |
19 | bne 1b | |
20 | teq r2, r1 | |
21 | movne r0, #0 | |
22 | subeq r0, r0, #1 | |
6ebbf2ce | 23 | ret lr |
93ed3970 | 24 | ENDPROC(strchr) |