/* TUI Interpreter definitions for GDB, the GNU debugger.
- Copyright (C) 2003, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2003-2015 Free Software Foundation, Inc.
This file is part of GDB.
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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "interps.h"
#include "tui/tui-win.h"
#include "tui/tui.h"
#include "tui/tui-io.h"
-#include "exceptions.h"
+#include "infrun.h"
+#include "observer.h"
+
+static struct ui_out *tui_ui_out (struct interp *self);
/* Set to 1 when the TUI mode must be activated when we first start
gdb. */
static int tui_start_enabled = 0;
+/* The TUI interpreter. */
+static struct interp *tui_interp;
+
/* Cleanup the tui before exiting. */
static void
tui_disable ();
}
+/* Observers for several run control events. If the interpreter is
+ quiet (i.e., another interpreter is being run with
+ interpreter-exec), print nothing. */
+
+/* Observer for the normal_stop notification. */
+
+static void
+tui_on_normal_stop (struct bpstats *bs, int print_frame)
+{
+ if (!interp_quiet_p (tui_interp))
+ {
+ if (print_frame)
+ print_stop_event (tui_ui_out (tui_interp));
+ }
+}
+
+/* Observer for the signal_received notification. */
+
+static void
+tui_on_signal_received (enum gdb_signal siggnal)
+{
+ if (!interp_quiet_p (tui_interp))
+ print_signal_received_reason (tui_ui_out (tui_interp), siggnal);
+}
+
+/* Observer for the end_stepping_range notification. */
+
+static void
+tui_on_end_stepping_range (void)
+{
+ if (!interp_quiet_p (tui_interp))
+ print_end_stepping_range_reason (tui_ui_out (tui_interp));
+}
+
+/* Observer for the signal_exited notification. */
+
+static void
+tui_on_signal_exited (enum gdb_signal siggnal)
+{
+ if (!interp_quiet_p (tui_interp))
+ print_signal_exited_reason (tui_ui_out (tui_interp), siggnal);
+}
+
+/* Observer for the exited notification. */
+
+static void
+tui_on_exited (int exitstatus)
+{
+ if (!interp_quiet_p (tui_interp))
+ print_exited_reason (tui_ui_out (tui_interp), exitstatus);
+}
+
+/* Observer for the no_history notification. */
+
+static void
+tui_on_no_history (void)
+{
+ if (!interp_quiet_p (tui_interp))
+ print_no_history_reason (tui_ui_out (tui_interp));
+}
+
+/* Observer for the sync_execution_done notification. */
+
+static void
+tui_on_sync_execution_done (void)
+{
+ if (!interp_quiet_p (tui_interp))
+ display_gdb_prompt (NULL);
+}
+
+/* Observer for the command_error notification. */
+
+static void
+tui_on_command_error (void)
+{
+ if (!interp_quiet_p (tui_interp))
+ display_gdb_prompt (NULL);
+}
+
/* These implement the TUI interpreter. */
static void *
-tui_init (void)
+tui_init (struct interp *self, int top_level)
{
/* Install exit handler to leave the screen in a good shape. */
atexit (tui_exit);
tui_initialize_static_data ();
tui_initialize_io ();
- tui_initialize_readline ();
+ tui_initialize_win ();
+ if (ui_file_isatty (gdb_stdout))
+ tui_initialize_readline ();
+
+ /* If changing this, remember to update cli-interp.c as well. */
+ observer_attach_normal_stop (tui_on_normal_stop);
+ observer_attach_signal_received (tui_on_signal_received);
+ observer_attach_end_stepping_range (tui_on_end_stepping_range);
+ observer_attach_signal_exited (tui_on_signal_exited);
+ observer_attach_exited (tui_on_exited);
+ observer_attach_no_history (tui_on_no_history);
+ observer_attach_sync_execution_done (tui_on_sync_execution_done);
+ observer_attach_command_error (tui_on_command_error);
return NULL;
}
return 1;
}
-/* Display the prompt if we are silent. */
-
-static int
-tui_display_prompt_p (void *data)
+static struct ui_out *
+tui_ui_out (struct interp *self)
{
- if (interp_quiet_p (NULL))
- return 0;
+ if (tui_active)
+ return tui_out;
else
- return 1;
+ return tui_old_uiout;
}
static struct gdb_exception
internal_error (__FILE__, __LINE__, _("tui_exec called"));
}
-
-/* Initialize all the necessary variables, start the event loop,
- register readline, and stdin, start the loop. */
-
-static void
-tui_command_loop (void *data)
-{
- /* If we are using readline, set things up and display the first
- prompt, otherwise just print the prompt. */
- if (async_command_editing_p)
- {
- int length;
- char *a_prompt;
- char *gdb_prompt = get_prompt ();
-
- /* Tell readline what the prompt to display is and what function
- it will need to call after a whole line is read. This also
- displays the first prompt. */
- length = strlen (PREFIX (0))
- + strlen (gdb_prompt) + strlen (SUFFIX (0)) + 1;
- a_prompt = (char *) alloca (length);
- strcpy (a_prompt, PREFIX (0));
- strcat (a_prompt, gdb_prompt);
- strcat (a_prompt, SUFFIX (0));
- rl_callback_handler_install (a_prompt, input_handler);
- }
- else
- display_gdb_prompt (0);
-
- /* Loop until there is nothing to do. This is the entry point to the
- event loop engine. gdb_do_one_event, called via catch_errors()
- will process one event for each invocation. It blocks waits for
- an event and then processes it. >0 when an event is processed, 0
- when catch_errors() caught an error and <0 when there are no
- longer any event sources registered. */
- while (1)
- {
- int result = catch_errors (gdb_do_one_event, 0, "", RETURN_MASK_ALL);
- if (result < 0)
- break;
-
- /* Update gdb output according to TUI mode. Since catch_errors
- preserves the uiout from changing, this must be done at top
- level of event loop. */
- if (tui_active)
- uiout = tui_out;
- else
- uiout = tui_old_uiout;
-
- if (result == 0)
- {
- /* FIXME: this should really be a call to a hook that is
- interface specific, because interfaces can display the
- prompt in their own way. */
- display_gdb_prompt (0);
- /* This call looks bizarre, but it is required. If the user
- entered a command that caused an error,
- after_char_processing_hook won't be called from
- rl_callback_read_char_wrapper. Using a cleanup there
- won't work, since we want this function to be called
- after a new prompt is printed. */
- if (after_char_processing_hook)
- (*after_char_processing_hook) ();
- /* Maybe better to set a flag to be checked somewhere as to
- whether display the prompt or not. */
- }
- }
-
- /* We are done with the event loop. There are no more event sources
- to listen to. So we exit GDB. */
- return;
-}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_tui_interp;
void
_initialize_tui_interp (void)
tui_resume,
tui_suspend,
tui_exec,
- tui_display_prompt_p,
- tui_command_loop,
+ tui_ui_out,
+ NULL,
+ cli_command_loop
};
- struct interp *tui_interp;
/* Create a default uiout builder for the TUI. */
- tui_out = tui_out_new (gdb_stdout);
- interp_add (interp_new (INTERP_TUI, NULL, tui_out, &procs));
+ tui_interp = interp_new (INTERP_TUI, &procs);
+ interp_add (tui_interp);
if (interpreter_p && strcmp (interpreter_p, INTERP_TUI) == 0)
tui_start_enabled = 1;