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authorIan Lance Taylor <iant@google.com>2007-10-16 23:09:45 +0000
committerIan Lance Taylor <iant@google.com>2007-10-16 23:09:45 +0000
commita360aedd0fd0e2c02c0896046bec126e6ad72308 (patch)
tree82c5d5ddb417843359ddd8b47c21c3722c33a7e4 /gold/testsuite/weak_test.cc
parent0c5e9c22aa5e70354471a6314c9c624c22719266 (diff)
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From Craig Silverstein: check that we get environ right.
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+// weak_test.cc -- test handling of weak symbols for gold
+
+// Copyright 2006, 2007 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;
+}