GNU C Library master sources branch master updated. glibc-2.17-810-g747ef46

[siddhesh at sourceware dot org]

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=747ef469ffc9c9179ca9d76854167925b4e44346

commit 747ef469ffc9c9179ca9d76854167925b4e44346
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Sat Jun 15 00:09:26 2013 +0530

    Add rtld-memset.S for x86_64
    
    Resolves: BZ #15627
    
    Add an assembler version of rtld-memset to avoid using SSE registers.

diff --git a/ChangeLog b/ChangeLog
index 0405645..77ac803 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2013-06-14  Siddhesh Poyarekar  <siddhesh@redhat.com>
+	    H.J. Lu  <hjl.tools@gmail.com>
+
+	[BZ #15627]
+	* sysdeps/x86_64/rtld-memset.c: Remove file.
+	* sysdeps/x86_64/rtld-memset.S: New file.
+
 2013-06-14  Joseph Myers  <joseph@codesourcery.com>
 
 	* stdlib/tst-strtod-round.c: Include <math-tests.h>.
diff --git a/NEWS b/NEWS
index afbcacc..6de51bf 100644
--- a/NEWS
+++ b/NEWS
@@ -20,7 +20,7 @@ Version 2.18
   15380, 15381, 15394, 15395, 15405, 15406, 15409, 15416, 15418, 15419,
   15423, 15424, 15426, 15429, 15431, 15432, 15441, 15442, 15448, 15465,
   15480, 15485, 15488, 15490, 15493, 15497, 15506, 15529, 15536, 15553,
-  15577, 15583, 15618.
+  15577, 15583, 15618, 15627.
 
 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
   #15078).
diff --git a/sysdeps/x86_64/rtld-memset.S b/sysdeps/x86_64/rtld-memset.S
new file mode 100644
index 0000000..18b4903
--- /dev/null
+++ b/sysdeps/x86_64/rtld-memset.S
@@ -0,0 +1,37 @@
+/* memset implementation for the dynamic linker.  This is separate from the
+   libc implementation to avoid writing to SSE registers.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+#include "asm-syntax.h"
+
+
+	.text
+/* void *memset (void *dest, char c, size_t count)
+   dest	 => %rdi
+   c	 => %rsi
+   count => %rdx  */
+ENTRY (memset)
+	mov	%rdx, %rcx
+	movzbl	%sil, %eax
+	mov	%rdi, %rdx
+	rep	stosb
+	mov	%rdx, %rax
+	ret
+END (memset)
+libc_hidden_builtin_def (memset)
diff --git a/sysdeps/x86_64/rtld-memset.c b/sysdeps/x86_64/rtld-memset.c
deleted file mode 100644
index 55f3835..0000000
--- a/sysdeps/x86_64/rtld-memset.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <string/memset.c>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                          |    7 +++++
 NEWS                                               |    2 +-
 .../x86_64/rtld-memset.S                           |   27 ++++++++++++-------
 sysdeps/x86_64/rtld-memset.c                       |    1 -
 4 files changed, 25 insertions(+), 12 deletions(-)
 copy ports/sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall0.c => sysdeps/x86_64/rtld-memset.S (66%)
 delete mode 100644 sysdeps/x86_64/rtld-memset.c


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