Imported binutils-2.20

[msp430-binutils.git] / gold / testsuite / weak_test.cc

diff --git a/gold/testsuite/weak_test.cc b/gold/testsuite/weak_test.cc
new file mode 100644 (file)
index 0000000..c14a688
--- /dev/null
+++ b/gold/testsuite/weak_test.cc
@@ -0,0 +1,47 @@
+// weak_test.cc -- test handling of weak symbols for gold
+
+// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
+// Written by Ian Lance Taylor <iant@google.com>.
+
+// 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.
+
+// This provides a set of test functions for TLS variables.  The
+// functions are called by a main function in tls_test_main.cc.  This
+// lets us test TLS access from a shared library.  We currently don't
+// bother to test TLS access between two different files, on the
+// theory that that is no more complicated than ordinary variable
+// access between files.
+
+// We test that we correctly deal with weak symbols defined in
+// other libraries (in this case, libc).  We need to make sure we
+// copy the associated GLOBAL reloc when we copy a WEAK reloc.
+
+
+#include <cstdio>
+
+int
+main()
+{
+  extern char** environ;   // defined in libc
+  if (environ == NULL)
+    {
+      fprintf(stderr, "FAILED the environ test: environ is NULL\n");
+      return 1;
+    }
+  return 0;
+}