python: Use console format for output of gdb.execute command

When gdb is started in MI mode, the output of gdb.execute
command is in MI-format in case when it is executed from python stop
handler while for all other cases the output is in console-format.

To assure consistent output format, this is fixed by using the console
format for all python gdb command executions.

PR python/19743

gdb/ChangeLog:
2016-03-31  Catalin Udma  <catalin.udma@freescale.com>

	PR python/19743
	* python/python.c (execute_gdb_command): Use console uiout
	when executing gdb command.
	* utils.c (restore_ui_out_closure): New structure.
	(do_restore_ui_out): New function.
	(make_cleanup_restore_ui_out): Likewise.
	* utils.h (make_cleanup_restore_ui_out): Declare.

gdb/testsuite/ChangeLog:
2016-03-31  Catalin Udma  <catalin.udma@freescale.com>

	PR python/19743
	* gdb.python/py-mi-events-gdb.py: New file.
	* gdb.python/py-mi-events.c: New file.
	* gdb.python/py-mi-events.exp: New file.

Signed-off-by: Catalin Udma <catalin.udma@freescale.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.python/py-mi-events-gdb.py b/gdb/testsuite/gdb.python/py-mi-events-gdb.py
new file mode 100644
index 0000000..0aa4fda
--- /dev/null
+++ b/gdb/testsuite/gdb.python/py-mi-events-gdb.py
@@ -0,0 +1,48 @@
+# Copyright (C) 2016 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/>.
+
+# This file is part of the GDB testsuite.  It tests python printing
+# to string from event handlers.
+
+
+import gdb
+
+
+def signal_stop_handler (event):
+    """Stop event handler"""
+    assert (isinstance (event, gdb.StopEvent))
+    print ("stop_handler")
+    print gdb.execute("info break", False, True)
+
+
+def continue_handler (event):
+    """Continue event handler"""
+    assert (isinstance (event, gdb.ContinueEvent))
+    print ("continue_handler")
+    print gdb.execute("info break", False, True)
+
+
+class test_events (gdb.Command):
+    """Test events."""
+
+    def __init__ (self):
+        gdb.Command.__init__ (self, "test-events", gdb.COMMAND_STACK)
+
+    def invoke (self, arg, from_tty):
+        gdb.events.stop.connect (signal_stop_handler)
+        gdb.events.cont.connect (continue_handler)
+        print ("Event testers registered.")
+
+test_events ()