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| /* SPDX-License-Identifier: GPL-2.0 */
| /*
| * Simplistic strlen() implementation for SHmedia.
| *
| * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org>
| */
|
| .section .text..SHmedia32,"ax"
| .globl strlen
| .type strlen,@function
|
| .balign 16
| strlen:
| ptabs r18, tr4
|
| /*
| * Note: We could easily deal with the NULL case here with a simple
| * sanity check, though it seems that the behavior we want is to fault
| * in the event that r2 == NULL, so we don't bother.
| */
| /* beqi r2, 0, tr4 */ ! Sanity check
|
| movi -1, r0
| pta/l loop, tr0
| loop:
| ld.b r2, 0, r1
| addi r2, 1, r2
| addi r0, 1, r0
| bnei/l r1, 0, tr0
|
| or r0, r63, r2
| blink tr4, r63
|
| .size strlen,.-strlen
|
|
