2013-01-03 Pedro Alves <palves@redhat.com>

	    Tom Tromey  <tromey@redhat.com>
	PR cli/7221:
	* NEWS: Add "catch signal".
	* breakpoint.c (base_breakpoint_ops): No longer static.
	(bpstat_explains_signal): New function.
	(init_catchpoint): No longer static.
	(base_breakpoint_explains_signal): New function.
	(base_breakpoint_ops): Initialize new field.
	* breakpoint.h (enum bpstat_signal_value): New.
	(struct breakpoint_ops) <explains_signal>: New field.
	(bpstat_explains_signal): Remove macro, declare as function.
	(base_breakpoint_ops, init_catchpoint): Declare.
	* break-catch-sig.c: New file.
	* inferior.h (signal_catch_update): Declare.
	* infrun.c (signal_catch): New global.
	(handle_syscall_event): Update for change to
	bpstat_explains_signal.
	(handle_inferior_event): Likewise.  Always handle random signals
	via bpstats.
	(signal_cache_update): Check signal_catch.
	(signal_catch_update): New function.
	(_initialize_infrun): Initialize signal_catch.
	* Makefile.in (SFILES): Add break-catch-sig.c.
	(COMMON_OBS): Add break-catch-sig.o.
gdb/doc
	* gdb.texinfo (Set Catchpoints): Document "catch signal".
	(Signals): Likewise.
gdb/testsuite
	* gdb.base/catch-signal.c: New file.
	* gdb.base/catch-signal.exp: New file.

1 files changed, 46 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/catch-signal.c b/gdb/testsuite/gdb.base/catch-signal.c
new file mode 100644
index 0000000..9c68185
--- /dev/null
+++ b/gdb/testsuite/gdb.base/catch-signal.c
@@ -0,0 +1,46 @@
+/* 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 <signal.h>
+#include <unistd.h>
+
+void
+do_nothing (void)
+{
+}
+
+void
+handle (int sig)
+{
+  do_nothing (); /* handle marker */
+}
+
+int
+main ()
+{
+  signal (SIGHUP, handle);
+  signal (SIGUSR1, SIG_IGN);
+
+  raise (SIGHUP);		/* first HUP */
+
+  raise (SIGHUP);		/* second HUP */
+
+  raise (SIGHUP);		/* third HUP */
+
+  raise (SIGHUP);		/* fourth HUP */
+}
+