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patches/glibc/2.3.6/glibc-2.3.5-sh-memset.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jul 03 22:23:58 2007 +0000 (2007-07-03)
changeset 200 f46cdeb69ae7
permissions -rw-r--r--
The armeb-unknown-linux-uclibc sample now builds without libfloat.
The generated toolchain is at least able to build busybox (which wasn't the case before). 
     1 From:

     2 	http://sources.redhat.com/ml/libc-alpha/2005-07/msg00051.html

     3 	http://sources.redhat.com/ml/crossgcc/2005-10/msg00035.html

     4 

     5 Message-ID: <434576E1.6020305@sscd.de>

     6 Date: Thu, 06 Oct 2005 21:11:29 +0200

     7 From: Alexander Sieb <sieb at sscd dot de>

     8 To: crossgcc at sourceware dot org

     9 Subject: Crosstool sh4-linux-gcc-4.0.2-glibc-2.3.5 patches

    10 

    11 On sh[34]-linux, memset function does not work if 2nd argument is negative

    12 and 3rd argument is greater than 12.

    13 for example, memset(ptr, "\xda", 20) sets 0xff instead of 0xda.

    14  

    15 Attached patch fixes this problem.

    16  

    17 	* sysdeps/sh/memset.S (memset): Correct 2nd argument handling.

    18  

    19 --- glibc-2.3.5.old/sysdeps/sh/memset.S	29 Apr 2003 22:47:18 -0000	1.4

    20 +++ glibc-2.3.5/sysdeps/sh/memset.S	23 Jul 2005 08:37:21 -0000

    21 @@ -28,6 +28,7 @@ ENTRY(memset)

    22  	bt.s	L_byte_loop_init

    23  	mov	r4,r7

    24  

    25 +	extu.b	r5,r5

    26  	swap.b	r5,r1

    27  	or	r1,r5

    28 	swap.w	r5,r1

    29 

    30 Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
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