From: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Date: Mon, 3 Sep 2012 12:06:27 +0000 (+0200)
Subject: S/390: Make IFUNC optimized mem* functions hidden.
X-Git-Tag: upstream/2.16.90~605
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=511fa2864a8d01a09b23a6b8b9a599429b7055f6;p=platform%2Fupstream%2Fglibc.git

S/390: Make IFUNC optimized mem* functions hidden.
---

diff --git a/ChangeLog b/ChangeLog
index c130d9d..ef7477d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2012-09-03  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
+
+	* sysdeps/s390/s390-32/multiarch/ifunc-resolve.c
+	(IFUNC_RESOLVE): Make pointers to the specialized implementations
+	hidden.
+	* sysdeps/s390/s390-64/multiarch/ifunc-resolve.c: Likewise.
+
 2012-09-02  H.J. Lu  <hongjiu.lu@intel.com>
 
 	[BZ #14538]
diff --git a/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c b/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c
index fd6e367..6a86c03 100644
--- a/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c
+++ b/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c
@@ -32,9 +32,11 @@
        ".globl __GI_" #FUNC "\n\t"					\
        ".set   __GI_" #FUNC "," #FUNC "\n");				\
 									\
-  extern void *FUNC##_z10;						\
-  extern void *FUNC##_z196;						\
-  extern void *FUNC##_g5;						\
+  /* Make the declarations of the optimized functions hidden in order
+     to prevent GOT slots being generated for them. */			\
+  extern __attribute__((visibility("hidden"))) void *FUNC##_z196;	\
+  extern __attribute__((visibility("hidden"))) void *FUNC##_z10;	\
+  extern __attribute__((visibility("hidden"))) void *FUNC##_g5;		\
 									\
   void *resolve_##FUNC (unsigned long int dl_hwcap)			\
   {									\
diff --git a/sysdeps/s390/s390-64/multiarch/ifunc-resolve.c b/sysdeps/s390/s390-64/multiarch/ifunc-resolve.c
index f980bc9..5f56764 100644
--- a/sysdeps/s390/s390-64/multiarch/ifunc-resolve.c
+++ b/sysdeps/s390/s390-64/multiarch/ifunc-resolve.c
@@ -32,9 +32,11 @@
        ".globl __GI_" #FUNC "\n\t"					\
        ".set   __GI_" #FUNC "," #FUNC "\n");				\
 									\
-  extern void *FUNC##_z10;						\
-  extern void *FUNC##_z196;						\
-  extern void *FUNC##_z900;						\
+  /* Make the declarations of the optimized functions hidden in order
+     to prevent GOT slots being generated for them. */			\
+  extern __attribute__((visibility("hidden"))) void *FUNC##_z196;	\
+  extern __attribute__((visibility("hidden"))) void *FUNC##_z10;	\
+  extern __attribute__((visibility("hidden"))) void *FUNC##_z900;	\
 									\
   void *resolve_##FUNC (unsigned long int dl_hwcap)			\
   {									\