patches/glibc/2.3.6/150-sh-lowlevellock.patch
author Johannes Stezenbach <js@sig21.net>
Thu Jul 29 19:47:16 2010 +0200 (2010-07-29)
changeset 2045 fdaa6c7f6dea
parent 402 197e1b49586e
permissions -rw-r--r--
cc/gcc: add option to compile against static libstdc++, for gcc-4.4 and newer

Idea and know-how taken from CodeSourcery build script.

Normal build:
$ ldd arm-unknown-linux-uclibcgnueabi-gcc
linux-gate.so.1 => (0xb77f3000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb76e8000)
libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb75a1000)
libm.so.6 => /lib/i686/cmov/libm.so.6 (0xb757a000)
/lib/ld-linux.so.2 (0xb77f4000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb755c000)

CC_STATIC_LIBSTDCXX=y:
$ ldd arm-unknown-linux-uclibcgnueabi-gcc
linux-gate.so.1 => (0xb7843000)
libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb76e6000)
/lib/ld-linux.so.2 (0xb7844000)

I made CC_STATIC_LIBSTDCXX default=y since I think
it is always desirable.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
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ML:	http://sources.redhat.com/ml/libc-hacker/2005-09/msg00002.html
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Date: Mon, 05 Sep 2005 21:07:15 +0900 (JST)
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Message-Id: <20050905.210715.15267870.kkojima@rr.iij4u.or.jp>
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To: libc-hacker at sources dot redhat dot com
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Subject: SH: A typo in lowlevellock.S
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From: Kaz Kojima <kkojima at rr dot iij4u dot or dot jp>
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Hi,
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The appended patch fixes a typo in a low-level lock function.  It
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set the correct 3rd argument for the futex syscall in loop.  Sorry
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for missing such an embarrassing bug.
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Regards,
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	kaz
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nptl/ChangeLog:
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2005-09-05  Kaz Kojima  <kkojima@rr.iij4u.or.jp>
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	* sysdeps/unix/sysv/linux/sh/lowlevellock.S (__lll_mutex_lock_wait):
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	Fix typo in register name.
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--- glibc.old/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S	2004-10-26 04:06:44.000000000 +0900
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+++ glibc/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S	2005-09-05 19:18:25.000000000 +0900
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@@ -1,4 +1,4 @@
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-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
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+/* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
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    This file is part of the GNU C Library.
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    The GNU C Library is free software; you can redistribute it and/or
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@@ -51,8 +51,8 @@ __lll_mutex_lock_wait:
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 	SYSCALL_INST_PAD
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 2:
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-	mov	#2, r4
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-	XCHG (r4, @r8, r2)
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+	mov	#2, r6
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+	XCHG (r6, @r8, r2)
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 	tst	r2, r2
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 	bf	1b
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Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>