r226272 - in /branches/google/gcc-4_9: ./ gcc/t...

[tmsriram@gcc.gnu.org]

Author: tmsriram
Date: Mon Jul 27 21:12:40 2015
New Revision: 226272

URL: https://gcc.gnu.org/viewcvs?rev=226272&root=gcc&view=rev
Log:
Backport trunk rev. 222178 to fix a bug with now binding and libgcc:

https://gcc.gnu.org/ml/gcc-patches/2015-04/msg00878.html

Also, make these local changes to libgcc/config/i386/t-linux and 
libgcc/config/i386/cpuinfo.c

* Force building of libgcc_s.so.1 with compat-ld and avoid gold to
  work around gold bug :
  https://sourceware.org/bugzilla/show_bug.cgi?id=18703
* Force symbol __cpu_indicator_init to be hidden in libgcc.a.  Trunk
  hides all symbols in libgcc.a whereas this config does not.

--- libgcc/config/i386/cpuinfo.c	(revision 226260)
+++ libgcc/config/i386/cpuinfo.c	(working copy)
@@ -34,6 +34,9 @@
 #endif
 
 int __cpu_indicator_init (void)
+#if !defined(SHARED)
+  __attribute__ ((visibility("hidden")))
+#endif


Index: libgcc/config/i386/t-linux
===================================================================
--- libgcc/config/i386/t-linux	(revision 226260)
+++ libgcc/config/i386/t-linux	(working copy)
@@ -3,4 +3,8 @@
 # t-slibgcc-elf-ver and t-linux
 SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver
 
-HOST_LIBGCC2_CFLAGS += -mlong-double-80
+# Work around gold bug:
+# https://sourceware.org/bugzilla/show_bug.cgi?id=18703
+SHLIB_LDFLAGS += -fuse-ld=bfd



Added:
    branches/google/gcc-4_9/gcc/testsuite/g++.dg/ext/mv18.C
      - copied unchanged from r222178, trunk/gcc/testsuite/g++.dg/ext/mv18.C
    branches/google/gcc-4_9/gcc/testsuite/g++.dg/ext/mv19.C
      - copied unchanged from r222178, trunk/gcc/testsuite/g++.dg/ext/mv19.C
    branches/google/gcc-4_9/gcc/testsuite/g++.dg/ext/mv20.C
      - copied unchanged from r222178, trunk/gcc/testsuite/g++.dg/ext/mv20.C
    branches/google/gcc-4_9/gcc/testsuite/g++.dg/ext/mv21.C
      - copied unchanged from r222178, trunk/gcc/testsuite/g++.dg/ext/mv21.C
    branches/google/gcc-4_9/gcc/testsuite/g++.dg/ext/mv22.C
      - copied unchanged from r222178, trunk/gcc/testsuite/g++.dg/ext/mv22.C
    branches/google/gcc-4_9/gcc/testsuite/g++.dg/ext/mv23.C
      - copied unchanged from r222178, trunk/gcc/testsuite/g++.dg/ext/mv23.C
Modified:
    branches/google/gcc-4_9/   (props changed)
    branches/google/gcc-4_9/libgcc/config.host
    branches/google/gcc-4_9/libgcc/config/i386/cpuinfo.c
    branches/google/gcc-4_9/libgcc/config/i386/t-linux

Propchange: branches/google/gcc-4_9/
            ('svn:mergeinfo' modified)