gdb/

	Remove stale dummy frames.
	* breakpoint.c: Include dummy-frame.h.
	(longjmp_breakpoint_ops): New variable.
	(update_breakpoints_after_exec, breakpoint_init_inferior): Delete also
	bp_longjmp_call_dummy.
	(bpstat_what, bptype_string, print_one_breakpoint_location)
	(init_bp_location): Support bp_longjmp_call_dummy.
	(set_longjmp_breakpoint): Use longjmp_breakpoint_ops.  Comment why.
	(set_longjmp_breakpoint_for_call_dummy)
	(check_longjmp_breakpoint_for_call_dummy, longjmp_bkpt_dtor): New
	functions.
	(initialize_breakpoint_ops): Initialize longjmp_breakpoint_ops.
	* breakpoint.h (enum bptype): New item bp_longjmp_call_dummy.  Delete
	FIXME comment and extend the other comment for bp_call_dummy.
	(set_longjmp_breakpoint_for_call_dummy)
	(check_longjmp_breakpoint_for_call_dummy): New declarations.
	* dummy-frame.c: Include gdbthread.h.
	(pop_dummy_frame_bpt): New function.
	(pop_dummy_frame): Call pop_dummy_frame_bpt.
	(dummy_frame_discard): New function.
	(cleanup_dummy_frames): Update the comment about longjmps.
	* dummy-frame.h (dummy_frame_discard): New declaration.
	* gdbthread.h (struct thread_info): Extend initiating_frame comment.
	* infcall.c (call_function_by_hand): New variable longjmp_b.  Call
	set_longjmp_breakpoint_for_call_dummy.  Chain its breakpoints with BPT.
	* infrun.c (handle_inferior_event) <BPSTAT_WHAT_CLEAR_LONGJMP_RESUME>:
	Add case 4 comment.  Call check_longjmp_breakpoint_for_call_dummy and
	keep_going if IS_LONGJMP and there is no other reason to stop.

gdb/testsuite/
	Remove stale dummy frames.
	* gdb.base/call-signal-resume.exp (maintenance print dummy-frames)
	(maintenance info breakpoints): New tests.
	* gdb.base/stale-infcall.c: New file.
	* gdb.base/stale-infcall.exp: New file.

1 files changed, 63 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/stale-infcall.c b/gdb/testsuite/gdb.base/stale-infcall.c
new file mode 100644
index 00000000000..1f5169a7c8e
--- /dev/null
+++ b/gdb/testsuite/gdb.base/stale-infcall.c
@@ -0,0 +1,63 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2012 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/>.  */
+
+#include <setjmp.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define BUFSIZE 0x1000
+
+static jmp_buf jmp;
+
+void
+infcall (void)
+{
+  longjmp (jmp, 1);
+}
+
+static void
+run1 (void)
+{
+  char buf[BUFSIZE / 2];
+  int dummy = 0;
+
+  dummy++; /* break-run1 */
+}
+
+static char buf_zero[BUFSIZE];
+
+static void
+run2 (void)
+{
+  char buf[BUFSIZE];
+
+  memset (buf, 0, sizeof (buf));
+
+  if (memcmp (buf, buf_zero, sizeof (buf)) != 0) /* break-run2 */
+    abort (); /* break-fail */
+}
+
+int
+main ()
+{
+  if (setjmp (jmp) == 0)
+    run1 ();
+  else
+    run2 ();
+
+  return 0; /* break-exit */
+}