From: Sanimir Agovic <sanimir.agovic@intel.com>

null ptr check to prevent gdbserver from crashing

Evaluating a thread local storage variable in a remote scenario crashes
gdbserver if libthread-db could not be loaded.

2013-02-12  Sanimir Agovic  <sanimir.agovic@intel.com>

gdbserver/
	* thread-db.c (thread_db_get_tls_address):
	NULL pointer check thread_db.

testsuite/
	* gdb.server/no-thread-db.exp: New file.
	* gdb.server/no-thread-db.c: New file.
	* gdb.server/Makefile.in (EXECUTABLES): Add no-thread-db.

1 files changed, 28 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.server/no-thread-db.c b/gdb/testsuite/gdb.server/no-thread-db.c
new file mode 100644
index 0000000..4974da7
--- /dev/null
+++ b/gdb/testsuite/gdb.server/no-thread-db.c
@@ -0,0 +1,28 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2012-2013 Free Software Foundation, Inc.
+
+   Contributed by Intel Corporation.
+
+   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, see <http://www.gnu.org/licenses/>.  */
+
+__thread int foo;
+
+int
+main ()
+{
+  foo = 1;
+  /* after tls assignment */
+  return foo;
+}