File gcc48-pr65612.patch of Package gcc48

2015-04-17  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/65612
	* config.host (tmake_file): Add t-slibgcc-libgcc for Linux/x86.
	* config/i386/cpuinfo.c (__cpu_model): Initialize.
	(__cpu_indicator_init@GCC_4.8.0): New.
	(__cpu_model@GCC_4.8.0): Likewise.
	* config/i386/t-linux (HOST_LIBGCC2_CFLAGS): Add
	-DUSE_ELF_SYMVER.

	* g++.dg/ext/mv18.C: New test.
	* g++.dg/ext/mv19.C: Likewise.
	* g++.dg/ext/mv20.C: Likewise.
	* g++.dg/ext/mv21.C: Likewise.
	* g++.dg/ext/mv22.C: Likewise.
	* g++.dg/ext/mv23.C: Likewise.

Index: libgcc/config.host
===================================================================
--- libgcc/config.host	(revision 222177)
+++ libgcc/config.host	(revision 222178)
@@ -1306,7 +1306,7 @@ i[34567]86-*-linux* | x86_64-*-linux* |
   i[34567]86-*-kfreebsd*-gnu | x86_64-*-kfreebsd*-gnu | \
   i[34567]86-*-knetbsd*-gnu | \
   i[34567]86-*-gnu*)
-	tmake_file="${tmake_file} t-tls i386/t-linux"
+	tmake_file="${tmake_file} t-tls i386/t-linux t-slibgcc-libgcc"
 	if test "$libgcc_cv_cfi" = "yes"; then
 		tmake_file="${tmake_file} t-stack i386/t-stack-i386"
 	fi
Index: libgcc/config/i386/cpuinfo.c
===================================================================
--- libgcc/config/i386/cpuinfo.c	(revision 222177)
+++ libgcc/config/i386/cpuinfo.c	(revision 222178)
@@ -109,7 +109,7 @@ struct __processor_model
   unsigned int __cpu_type;
   unsigned int __cpu_subtype;
   unsigned int __cpu_features[1];
-} __cpu_model;
+} __cpu_model = { };
 
 
 /* Get the specific type of AMD CPU.  */
@@ -424,3 +424,8 @@ __cpu_indicator_init (void)
 
   return 0;
 }
+
+#if defined SHARED && defined USE_ELF_SYMVER
+__asm__ (".symver __cpu_indicator_init, __cpu_indicator_init@GCC_4.8.0");
+__asm__ (".symver __cpu_model, __cpu_model@GCC_4.8.0");
+#endif
Index: libgcc/config/i386/t-linux
===================================================================
--- libgcc/config/i386/t-linux	(revision 222177)
+++ libgcc/config/i386/t-linux	(revision 222178)
@@ -3,4 +3,4 @@
 # t-slibgcc-elf-ver and t-linux
 SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver
 
-HOST_LIBGCC2_CFLAGS += -mlong-double-80
+HOST_LIBGCC2_CFLAGS += -mlong-double-80 -DUSE_ELF_SYMVER
Index: gcc/testsuite/g++.dg/ext/mv20.C
===================================================================
--- gcc/testsuite/g++.dg/ext/mv20.C	(nonexistent)
+++ gcc/testsuite/g++.dg/ext/mv20.C	(revision 222178)
@@ -0,0 +1,7 @@
+/* Test case to check if Multiversioning works.  */
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-require-ifunc "" }  */
+/* { dg-require-effective-target pie } */
+/* { dg-options "-O2 -fPIE -pie -march=x86-64" } */
+
+#include "mv15.C"
Index: gcc/testsuite/g++.dg/ext/mv21.C
===================================================================
--- gcc/testsuite/g++.dg/ext/mv21.C	(nonexistent)
+++ gcc/testsuite/g++.dg/ext/mv21.C	(revision 222178)
@@ -0,0 +1,7 @@
+/* Test case to check if Multiversioning works.  */
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-require-ifunc "" }  */
+/* { dg-require-effective-target static } */
+/* { dg-options "-O2 -static" } */
+
+#include "mv1.C"
Index: gcc/testsuite/g++.dg/ext/mv22.C
===================================================================
--- gcc/testsuite/g++.dg/ext/mv22.C	(nonexistent)
+++ gcc/testsuite/g++.dg/ext/mv22.C	(revision 222178)
@@ -0,0 +1,7 @@
+/* Test case to check if Multiversioning works.  */
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-require-ifunc "" }  */
+/* { dg-require-effective-target static } */
+/* { dg-options "-O2 -static -march=x86-64" } */
+
+#include "mv14.C"
Index: gcc/testsuite/g++.dg/ext/mv23.C
===================================================================
--- gcc/testsuite/g++.dg/ext/mv23.C	(nonexistent)
+++ gcc/testsuite/g++.dg/ext/mv23.C	(revision 222178)
@@ -0,0 +1,7 @@
+/* Test case to check if Multiversioning works.  */
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-require-ifunc "" }  */
+/* { dg-require-effective-target static } */
+/* { dg-options "-O2 -static -march=x86-64" } */
+
+#include "mv15.C"
Index: gcc/testsuite/g++.dg/ext/mv18.C
===================================================================
--- gcc/testsuite/g++.dg/ext/mv18.C	(nonexistent)
+++ gcc/testsuite/g++.dg/ext/mv18.C	(revision 222178)
@@ -0,0 +1,7 @@
+/* Test case to check if Multiversioning works.  */
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-require-ifunc "" }  */
+/* { dg-require-effective-target pie } */
+/* { dg-options "-O2 -fPIE -pie" } */
+
+#include "mv1.C"
Index: gcc/testsuite/g++.dg/ext/mv19.C
===================================================================
--- gcc/testsuite/g++.dg/ext/mv19.C	(nonexistent)
+++ gcc/testsuite/g++.dg/ext/mv19.C	(revision 222178)
@@ -0,0 +1,7 @@
+/* Test case to check if Multiversioning works.  */
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-require-ifunc "" }  */
+/* { dg-require-effective-target pie } */
+/* { dg-options "-O2 -fPIE -pie -march=x86-64" } */
+
+#include "mv14.C"