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From:
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http://sources.redhat.com/ml/libc-alpha/2005-07/msg00051.html
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http://sources.redhat.com/ml/crossgcc/2005-10/msg00035.html
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Message-ID: <434576E1.6020305@sscd.de>
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Date: Thu, 06 Oct 2005 21:11:29 +0200
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From: Alexander Sieb <sieb at sscd dot de>
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To: crossgcc at sourceware dot org
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Subject: Crosstool sh4-linux-gcc-4.0.2-glibc-2.3.5 patches
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On sh[34]-linux, memset function does not work if 2nd argument is negative
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and 3rd argument is greater than 12.
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for example, memset(ptr, "\xda", 20) sets 0xff instead of 0xda.
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Attached patch fixes this problem.
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* sysdeps/sh/memset.S (memset): Correct 2nd argument handling.
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--- glibc-2.3.5.old/sysdeps/sh/memset.S 29 Apr 2003 22:47:18 -0000 1.4
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+++ glibc-2.3.5/sysdeps/sh/memset.S 23 Jul 2005 08:37:21 -0000
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@@ -28,6 +28,7 @@ ENTRY(memset)
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bt.s L_byte_loop_init
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mov r4,r7
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+ extu.b r5,r5
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swap.b r5,r1
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or r1,r5
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swap.w r5,r1
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Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
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