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patches/glibc/2.3.6/150-sh-lowlevellock.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Sep 12 20:54:54 2010 +0200 (2010-09-12)
changeset 2122 eb837be50f8f
parent 402 197e1b49586e
permissions -rw-r--r--
cc/gcc: do not force use of non-vital companion libraries

While GMP and MPFR are required by gcc>=4.3 (to build the frontends),
and MPC is required by gcc>=4.5, the other libs are not. If they are
present then gcc will enable advanced features; if they are missing,
then gcc will (should) simply disable those features.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 ML:	http://sources.redhat.com/ml/libc-hacker/2005-09/msg00002.html

     2 

     3 Date: Mon, 05 Sep 2005 21:07:15 +0900 (JST)

     4 Message-Id: <20050905.210715.15267870.kkojima@rr.iij4u.or.jp>

     5 To: libc-hacker at sources dot redhat dot com

     6 Subject: SH: A typo in lowlevellock.S

     7 From: Kaz Kojima <kkojima at rr dot iij4u dot or dot jp>

     8 

     9 Hi,

    10 

    11 The appended patch fixes a typo in a low-level lock function.  It

    12 set the correct 3rd argument for the futex syscall in loop.  Sorry

    13 for missing such an embarrassing bug.

    14 

    15 Regards,

    16 	kaz

    17 

    18 nptl/ChangeLog:

    19 2005-09-05  Kaz Kojima  <kkojima@rr.iij4u.or.jp>

    20 

    21 	* sysdeps/unix/sysv/linux/sh/lowlevellock.S (__lll_mutex_lock_wait):

    22 	Fix typo in register name.

    23 

    24 --- glibc.old/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S	2004-10-26 04:06:44.000000000 +0900

    25 +++ glibc/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S	2005-09-05 19:18:25.000000000 +0900

    26 @@ -1,4 +1,4 @@

    27 -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.

    28 +/* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.

    29     This file is part of the GNU C Library.

    30  

    31     The GNU C Library is free software; you can redistribute it and/or

    32 @@ -51,8 +51,8 @@ __lll_mutex_lock_wait:

    33  	SYSCALL_INST_PAD

    34  

    35  2:

    36 -	mov	#2, r4

    37 -	XCHG (r4, @r8, r2)

    38 +	mov	#2, r6

    39 +	XCHG (r6, @r8, r2)

    40  	tst	r2, r2

    41  	bf	1b

    42  

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