From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 arch/sh/lib64/strlen.S | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 arch/sh/lib64/strlen.S

(limited to 'arch/sh/lib64/strlen.S')

diff --git a/arch/sh/lib64/strlen.S b/arch/sh/lib64/strlen.S
new file mode 100644
index 000000000..cbc0d912e
--- /dev/null
+++ b/arch/sh/lib64/strlen.S
@@ -0,0 +1,33 @@
+/*
+ * 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
-- 
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