GNU C Library master sources branch master updated. glibc-2.18-287-g75b4202

[davem at sourceware dot org]

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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=75b4202ab03337edb37536e3d9470a48a04c9341

commit 75b4202ab03337edb37536e3d9470a48a04c9341
Author: David S. Miller <davem@davemloft.net>
Date:   Thu Oct 10 22:32:36 2013 -0700

    Fix readdir regressions on sparc 32-bit.
    
    	* sysdeps/posix/dirstream.h (struct __dirstream): Fix alignment of
    	directory block.

diff --git a/ChangeLog b/ChangeLog
index fdc2f0b..5d99bd8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-10-10  David S. Miller  <davem@davemloft.net>
+
+	* sysdeps/posix/dirstream.h (struct __dirstream): Fix alignment of
+	directory block.
+
 2013-10-10  Joseph Myers  <joseph@codesourcery.com>
 
 	* soft-fp/extendxftf2.c: Use copyright year range.  Use URL
diff --git a/sysdeps/posix/dirstream.h b/sysdeps/posix/dirstream.h
index 8e8570d..be20895 100644
--- a/sysdeps/posix/dirstream.h
+++ b/sysdeps/posix/dirstream.h
@@ -41,8 +41,13 @@ struct __dirstream
 
     int errcode;		/* Delayed error code.  */
 
-    /* Directory block.  */
-    char data[0] __attribute__ ((aligned (__alignof__ (void*))));
+    /* Directory block.  We must make sure that this block starts
+       at an address that is aligned adequately enough to store
+       dirent entries.  Using the alignment of "void *" is not
+       sufficient because dirents on 32-bit platforms can require
+       64-bit alignment.  We use "long double" here to be consistent
+       with what malloc uses.  */
+    char data[0] __attribute__ ((aligned (__alignof__ (long double))));
   };
 
 #define _DIR_dirfd(dirp)	((dirp)->fd)

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

Summary of changes:
 ChangeLog                 |    5 +++++
 sysdeps/posix/dirstream.h |    9 +++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)


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