Sync down FSF r184235@google/gcc-4_6_2-mobile branch

1) Get mostly new patches from FSF gcc-4.6 branch
2) Fix PR52129
3) Insert GNU-stack note for all ARM targets

Change-Id: I2b9926981210e517e4021242908074319a91d6bd

1 files changed, 22 insertions, 20 deletions

diff --git a/gcc-4.6/libstdc++-v3/configure b/gcc-4.6/libstdc++-v3/configure
index a68accae8..9aedd4fb7 100755
--- a/gcc-4.6/libstdc++-v3/configure
+++ b/gcc-4.6/libstdc++-v3/configure
@@ -644,6 +644,7 @@ GLIBCXX_LDBL_COMPAT_FALSE
 GLIBCXX_LDBL_COMPAT_TRUE
 ENABLE_VISIBILITY_FALSE
 ENABLE_VISIBILITY_TRUE
+libtool_VERSION
 ENABLE_SYMVERS_SOL2_FALSE
 ENABLE_SYMVERS_SOL2_TRUE
 ENABLE_SYMVERS_SUN_FALSE
@@ -787,7 +788,6 @@ build_vendor
 build_cpu
 build
 multi_basedir
-libtool_VERSION
 target_alias
 host_alias
 build_alias
@@ -2824,10 +2824,6 @@ ac_config_headers="$ac_config_headers config.h"
 # exported.  Only used at the end of this file.
 ### am handles this now?  ORIGINAL_LD_FOR_MULTILIBS=$LD
 
-# For libtool versioning info, format is CURRENT:REVISION:AGE
-libtool_VERSION=6:16:0
-
-
 # Find the rest of the source tree framework.
 # Default to --enable-multilib
 # Check whether --enable-multilib was given.
@@ -9717,7 +9713,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
       ;;
 
     # Unfortunately, older versions of FreeBSD 2 do not have this feature.
-    freebsd2*)
+    freebsd2.*)
       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
       hardcode_direct=yes
       hardcode_minus_L=yes
@@ -10633,7 +10629,7 @@ freebsd* | dragonfly*)
     objformat=`/usr/bin/objformat`
   else
     case $host_os in
-    freebsd[123]*) objformat=aout ;;
+    freebsd[23].*) objformat=aout ;;
     *) objformat=elf ;;
     esac
   fi
@@ -10651,7 +10647,7 @@ freebsd* | dragonfly*)
   esac
   shlibpath_var=LD_LIBRARY_PATH
   case $host_os in
-  freebsd2*)
+  freebsd2.*)
     shlibpath_overrides_runpath=yes
     ;;
   freebsd3.[01]* | freebsdelf3.[01]*)
@@ -11503,7 +11499,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11506 "configure"
+#line 11502 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11609,7 +11605,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11612 "configure"
+#line 11608 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12541,7 +12537,7 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi
         esac
         ;;
 
-      freebsd[12]*)
+      freebsd2.*)
         # C++ shared libraries reported to be fairly broken before
 	# switch to ELF
         ld_shlibs_CXX=no
@@ -14316,7 +14312,7 @@ freebsd* | dragonfly*)
     objformat=`/usr/bin/objformat`
   else
     case $host_os in
-    freebsd[123]*) objformat=aout ;;
+    freebsd[23].*) objformat=aout ;;
     *) objformat=elf ;;
     esac
   fi
@@ -14334,7 +14330,7 @@ freebsd* | dragonfly*)
   esac
   shlibpath_var=LD_LIBRARY_PATH
   case $host_os in
-  freebsd2*)
+  freebsd2.*)
     shlibpath_overrides_runpath=yes
     ;;
   freebsd3.[01]* | freebsdelf3.[01]*)
@@ -14967,7 +14963,7 @@ fi
     #
     # Fake what AC_TRY_COMPILE does.  XXX Look at redoing this new-style.
     cat > conftest.$ac_ext << EOF
-#line 14970 "configure"
+#line 14966 "configure"
 struct S { ~S(); };
 void bar();
 void foo()
@@ -15335,7 +15331,7 @@ $as_echo "$glibcxx_cv_atomic_long_long" >&6; }
   # Fake what AC_TRY_COMPILE does.
 
     cat > conftest.$ac_ext << EOF
-#line 15338 "configure"
+#line 15334 "configure"
 int main()
 {
   typedef bool atomic_type;
@@ -15372,7 +15368,7 @@ $as_echo "$glibcxx_cv_atomic_bool" >&6; }
     rm -f conftest*
 
     cat > conftest.$ac_ext << EOF
-#line 15375 "configure"
+#line 15371 "configure"
 int main()
 {
   typedef short atomic_type;
@@ -15409,7 +15405,7 @@ $as_echo "$glibcxx_cv_atomic_short" >&6; }
     rm -f conftest*
 
     cat > conftest.$ac_ext << EOF
-#line 15412 "configure"
+#line 15408 "configure"
 int main()
 {
   // NB: _Atomic_word not necessarily int.
@@ -15447,7 +15443,7 @@ $as_echo "$glibcxx_cv_atomic_int" >&6; }
     rm -f conftest*
 
     cat > conftest.$ac_ext << EOF
-#line 15450 "configure"
+#line 15446 "configure"
 int main()
 {
   typedef long long atomic_type;
@@ -15523,7 +15519,7 @@ $as_echo "$as_me: WARNING: Performance of certain classes will degrade as a resu
   # unnecessary for this test.
 
     cat > conftest.$ac_ext << EOF
-#line 15526 "configure"
+#line 15522 "configure"
 int main()
 {
   _Decimal32 d1;
@@ -64282,7 +64278,10 @@ $as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
   fi
 fi
 
-# Everything parsed; figure out what file to use.
+# For libtool versioning info, format is CURRENT:REVISION:AGE
+libtool_VERSION=6:16:0
+
+# Everything parsed; figure out what files and settings to use.
 case $enable_symvers in
   no)
     SYMVER_FILE=config/abi/pre/none.ver
@@ -64294,6 +64293,7 @@ $as_echo "#define _GLIBCXX_SYMVER_GNU 1" >>confdefs.h
 
     ;;
   gnu-versioned-namespace)
+    libtool_VERSION=7:0:0
     SYMVER_FILE=config/abi/pre/gnu-versioned-namespace.ver
 
 $as_echo "#define _GLIBCXX_SYMVER_GNU_NAMESPACE 1" >>confdefs.h
@@ -64444,6 +64444,8 @@ fi
 $as_echo "$glibcxx_ptrdiff_t_is_i" >&6; }
 
 
+
+
  # Check whether --enable-visibility was given.
 if test "${enable_visibility+set}" = set; then :
   enableval=$enable_visibility;