gdb/

	* breakpoint.c (update_watchpoint): Create a sentinel location if
	the software watchpoint isn't watching any memory.
	(breakpoint_address_bits): Skip dummy software watchpoint locations.

	gdb/testsuite/
	* gdb.base/watch-non-mem.c, gdb.base/watch-non-mem.exp: New.

1 files changed, 27 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/watch-non-mem.c b/gdb/testsuite/gdb.base/watch-non-mem.c
new file mode 100644
index 0000000..8474657
--- /dev/null
+++ b/gdb/testsuite/gdb.base/watch-non-mem.c
@@ -0,0 +1,27 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2010 Free Software Foundation, Inc.
+
+   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/>.  */
+
+int global = 0;
+
+int main()
+{
+  global++;
+  global++;
+  global++;
+
+  return 0;
+}