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GNU C Library master sources branch release/2.18/master updated. glibc-2.18-20-gf2b605e


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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=f2b605ed8882a922c403386b2af7e7a5eecbf39f

commit f2b605ed8882a922c403386b2af7e7a5eecbf39f
Author: Jose E. Marchesi <jose.marchesi@oracle.com>
Date:   Sat May 17 11:20:27 2014 -0700

    Fix sparc memcpy data corruption when using niagara2 optimized routines.
    
    	* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Add missing
    	membar to avoid block loads/stores to overlap previous stores.

diff --git a/ChangeLog b/ChangeLog
index f008fb4..2a14ec2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2014-05-17  Jose E. Marchesi  <jose.marchesi@oracle.com>
+
+	[BZ #16958]
+	* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Add missing
+	membar to avoid block loads/stores to overlap previous stores.
+
 2014-05-16  Aurelien Jarno  <aurelien@aurel32.net>
 
 	[BZ #16943]
diff --git a/NEWS b/NEWS
index 4825617..4cbe736 100644
--- a/NEWS
+++ b/NEWS
@@ -10,7 +10,7 @@ Version 2.18.1
 * The following bugs are resolved with this release:
 
   15073, 15128, 15909, 15996, 16150, 16169, 16387, 16510, 16885, 16916,
-  16943.
+  16943, 16958.
 
 Version 2.18
 
diff --git a/sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S b/sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S
index 5944050..63ba081 100644
--- a/sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S
+++ b/sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S
@@ -211,6 +211,7 @@ ENTRY(__memcpy_niagara2)
 	 */
 	VISEntryHalf
 
+	membar		#Sync
 	alignaddr	%o1, %g0, %g0
 
 	add		%o1, (64 - 1), %o4

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

Summary of changes:
 ChangeLog                                         |    6 ++++++
 NEWS                                              |    2 +-
 sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S |    1 +
 3 files changed, 8 insertions(+), 1 deletions(-)


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