GNU C Library master sources branch hjl/pr17711/2.20 updated. glibc-2.20-21-gb2aeb9a

[hjl at sourceware dot org]

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=b2aeb9aca202128d1a9e8b8bfc14e763a86d8727

commit b2aeb9aca202128d1a9e8b8bfc14e763a86d8727
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Mar 6 04:55:56 2015 -0800

    Replace __attribute__((visibility("protected")))
    
    With copy relocation, address of protected data defined in the shared
    library may be external.  Compiler shouldn't asssume protected data will
    be local.  But due to
    
    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248
    
    __attribute__((visibility("protected"))) doesn't work correctly, we need
    to use asm (".protected xxx") instead.
    
    Cherry-pick from master: e0ed2fb40a0e29c43cf60addc74741dab15f2e05
    	* elf/ifuncdep2.c (global): Replace
    	__attribute__((visibility("protected"))) with
    	asm (".protected global").
    	* elf/ifuncmod1.c (global): Likewise.
    	* elf/ifuncmod5.c (global): Likewise.

diff --git a/elf/ifuncdep2.c b/elf/ifuncdep2.c
index 99d1926..6e66d31 100644
--- a/elf/ifuncdep2.c
+++ b/elf/ifuncdep2.c
@@ -2,7 +2,13 @@
 
 #include "ifunc-sel.h"
 
-int global __attribute__ ((visibility ("protected"))) = -1;
+int global = -1;
+/* Can't use __attribute__((visibility("protected"))) until the GCC bug:
+
+   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248
+
+   is fixed.  */
+asm (".protected global");
 
 static int
 one (void)
diff --git a/elf/ifuncmod1.c b/elf/ifuncmod1.c
index 2b8195c..0b61380 100644
--- a/elf/ifuncmod1.c
+++ b/elf/ifuncmod1.c
@@ -6,7 +6,13 @@
  */
 #include "ifunc-sel.h"
 
-int global __attribute__ ((visibility ("protected"))) = -1;
+int global = -1;
+/* Can't use __attribute__((visibility("protected"))) until the GCC bug:
+
+   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248
+
+   is fixed.  */
+asm (".protected global");
 
 static int
 one (void)
diff --git a/elf/ifuncmod5.c b/elf/ifuncmod5.c
index 9a08e8c..0e65a63 100644
--- a/elf/ifuncmod5.c
+++ b/elf/ifuncmod5.c
@@ -1,7 +1,13 @@
 /* Test STT_GNU_IFUNC symbols without direct function call.  */
 #include "ifunc-sel.h"
 
-int global __attribute__ ((visibility ("protected"))) = -1;
+int global = -1;
+/* Can't use __attribute__((visibility("protected"))) until the GCC bug:
+
+   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248
+
+   is fixed.  */
+asm (".protected global");
 
 static int
 one (void)

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

Summary of changes:
 elf/ifuncdep2.c |    8 +++++++-
 elf/ifuncmod1.c |    8 +++++++-
 elf/ifuncmod5.c |    8 +++++++-
 3 files changed, 21 insertions(+), 3 deletions(-)


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