gdb/

	* breakpoint.c (breakpoint_restore_shadows): New OWNER comment.
	(should_be_inserted): Return zero also on NULL OWNER.
	(breakpoint_program_space_exit): New OWNER comment.
	(insert_breakpoint_locations): Extend comment for OWNER.
	(remove_breakpoint_1, remove_breakpoint): Assert on OWNER.
	(breakpoint_init_inferior, breakpoint_here_p, breakpoint_thread_match):
	New OWNER comment.
	(print_it_typical): Return PRINT_UNKNOWN on NULL OWNER.
	(watchpoint_check): New assert on BREAKPOINT_AT and OWNER.
	(bpstat_check_location): New assert on OWNER.
	(bpstat_check_watchpoint, bpstat_check_breakpoint_conditions): Move BL
	and B initializations to the code block.  New assert on them.
	(print_one_breakpoint_location): New OWNER comment.
	(watchpoint_locations_match): Assert on OWNER.
	(breakpoint_locations_match): Move HW_POINT1 and HW_POINT2
	initializations to the code block.  New assert on OWNER.
	(set_breakpoint_location_function): New assert on OWNER.
	(disable_breakpoints_in_shlibs, disable_breakpoints_in_unloaded_shlib)
	(bp_location_compare, update_global_location_list)
	(update_global_location_list): New OWNER comment.

gdb/testsuite/
	* gdb.base/moribund-step.exp: New.

2 files changed, 32 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index f27c4eb..3e5e494 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2010-06-11  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	* gdb.base/moribund-step.exp: New.
+
 2010-06-08  Michael Snyder  <msnyder@vmware.com>
 
 	* gdb.ada/assign_1.exp: Use ".*" instead of "" as wildcard regexp.
diff --git a/gdb/testsuite/gdb.base/moribund-step.exp b/gdb/testsuite/gdb.base/moribund-step.exp
new file mode 100644
index 0000000..786708e
--- /dev/null
+++ b/gdb/testsuite/gdb.base/moribund-step.exp
@@ -0,0 +1,28 @@
+# Copyright (C) 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/>.
+
+set testfile moribund-step
+if { [prepare_for_testing ${testfile}.exp ${testfile} start.c] } {
+    return -1
+}
+
+gdb_test_no_output "set non-stop on"
+
+if ![runto_main] {
+    return
+}
+
+# GDB could crash on printing breakpoint hit on a moribund bp_location.
+gdb_test "step"