Don't compare symbol addresses directly

GCC 5 will fold symbol address comparison, assuming each symbol has a
different address, which leads to abort.  We should use separate
functions to compare symbol address.

	PR gold/18663
	* testsuite/Makefile.am (script_test_1_SOURCES): Set to
	script_test_1a.cc script_test_1b.cc.
	(script_test_11_r.o): Replace script_test_11.o with
	script_test_11a.o script_test_11b.o.
	(script_test_11.o): Removed.
	(script_test_11a.o): New.
	(script_test_11b.o): Likewise.
	* testsuite/Makefile.in: Regenerated.
	* testsuite/script_test_1.h: New file.
	* testsuite/script_test_1b.cc: Likewise.
	* testsuite/script_test_11.h: Likewise.
	* testsuite/script_test_11b.c: Likewise.
	* testsuite/script_test_1.cc: Renamed to ...
	* testsuite/script_test_1a.cc: This.
	Include "script_test_1.h".
	(main): Call check_int and check_ptr.
	* testsuite/script_test_11.c: Renamed to ...
	* testsuite/script_test_11a.c: This.
	Include "script_test_11.h".
	(main): Call ptr_equal.

1 files changed, 38 insertions, 0 deletions

diff --git a/gold/testsuite/script_test_1b.cc b/gold/testsuite/script_test_1b.cc
new file mode 100644
index 0000000..553ebca
--- /dev/null
+++ b/gold/testsuite/script_test_1b.cc
@@ -0,0 +1,38 @@
+// script_test_1b.cc -- linker script test 1 for gold  -*- C++ -*-
+
+// Copyright (C) 2015 Free Software Foundation, Inc.
+
+// This file is part of gold.
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+// MA 02110-1301, USA.
+
+// A test for a linker script which sets symbols to values.
+
+#include <cassert>
+
+#include "script_test_1.h"
+
+void
+check_int(intptr_t i, intptr_t j)
+{
+  assert (i == j);
+}
+
+void
+check_ptr(int *i, int *j)
+{
+  assert (i == j);
+}