[uClibc-cvs] uClibc/libc/string/sh64 strlen.S, NONE, 1.1 Makefile, 1.1, 1.2
Erik Andersen
andersen at uclibc.org
Fri Jan 30 21:11:21 UTC 2004
Update of /var/cvs/uClibc/libc/string/sh64
In directory nail:/tmp/cvs-serv5814/libc/string/sh64
Modified Files:
Makefile
Added Files:
strlen.S
Log Message:
Paul Mundt, lethal at linux-sh dot org writes:
Boredom got the better of me, here's strlen() for sh64..
--- NEW FILE: strlen.S ---
/* vi: set sw=8 ts=8: */
/*
* libc/string/sh64/strlen.S
*
* Simplistic strlen() implementation for SHmedia.
*
* Copyright (C) 2003 Paul Mundt <lethal at linux-sh.org>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the above contributors may not be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
.section .text..SHmedia32,"ax"
.globl strlen
.type strlen, at 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
Index: Makefile
===================================================================
RCS file: /var/cvs/uClibc/libc/string/sh64/Makefile,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- Makefile 17 Dec 2003 07:57:32 -0000 1.1
+++ Makefile 30 Jan 2004 21:11:18 -0000 1.2
@@ -19,7 +19,7 @@
TOPDIR=../../../
include $(TOPDIR)Rules.mak
-SSRC= memcpy.S memset.S strcpy.S
+SSRC= memcpy.S memset.S strcpy.S strlen.S
SOBJS=$(patsubst %.S,%.o, $(SSRC))
all: $(SOBJS) $(LIBC)
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