1 /* TUI Interpreter definitions for GDB, the GNU debugger.
3 Copyright (C) 2003-2016 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "event-top.h"
24 #include "event-loop.h"
27 #include "tui/tui-data.h"
28 #include "readline/readline.h"
29 #include "tui/tui-win.h"
31 #include "tui/tui-io.h"
35 static struct ui_out
*tui_ui_out (struct interp
*self
);
37 /* Set to 1 when the TUI mode must be activated when we first start
39 static int tui_start_enabled
= 0;
41 /* The TUI interpreter. */
42 static struct interp
*tui_interp
;
44 /* Cleanup the tui before exiting. */
49 /* Disable the tui. Curses mode is left leaving the screen in a
50 clean state (see endwin()). */
54 /* Observers for several run control events. If the interpreter is
55 quiet (i.e., another interpreter is being run with
56 interpreter-exec), print nothing. */
58 /* Observer for the normal_stop notification. */
61 tui_on_normal_stop (struct bpstats
*bs
, int print_frame
)
63 if (!interp_quiet_p (tui_interp
))
66 print_stop_event (tui_ui_out (tui_interp
));
70 /* Observer for the signal_received notification. */
73 tui_on_signal_received (enum gdb_signal siggnal
)
75 if (!interp_quiet_p (tui_interp
))
76 print_signal_received_reason (tui_ui_out (tui_interp
), siggnal
);
79 /* Observer for the end_stepping_range notification. */
82 tui_on_end_stepping_range (void)
84 if (!interp_quiet_p (tui_interp
))
85 print_end_stepping_range_reason (tui_ui_out (tui_interp
));
88 /* Observer for the signal_exited notification. */
91 tui_on_signal_exited (enum gdb_signal siggnal
)
93 if (!interp_quiet_p (tui_interp
))
94 print_signal_exited_reason (tui_ui_out (tui_interp
), siggnal
);
97 /* Observer for the exited notification. */
100 tui_on_exited (int exitstatus
)
102 if (!interp_quiet_p (tui_interp
))
103 print_exited_reason (tui_ui_out (tui_interp
), exitstatus
);
106 /* Observer for the no_history notification. */
109 tui_on_no_history (void)
111 if (!interp_quiet_p (tui_interp
))
112 print_no_history_reason (tui_ui_out (tui_interp
));
115 /* Observer for the sync_execution_done notification. */
118 tui_on_sync_execution_done (void)
120 if (!interp_quiet_p (tui_interp
))
121 display_gdb_prompt (NULL
);
124 /* Observer for the command_error notification. */
127 tui_on_command_error (void)
129 if (!interp_quiet_p (tui_interp
))
130 display_gdb_prompt (NULL
);
133 /* These implement the TUI interpreter. */
136 tui_init (struct interp
*self
, int top_level
)
138 /* Install exit handler to leave the screen in a good shape. */
144 tui_initialize_static_data ();
146 tui_initialize_io ();
147 tui_initialize_win ();
148 if (ui_file_isatty (gdb_stdout
))
149 tui_initialize_readline ();
151 /* If changing this, remember to update cli-interp.c as well. */
152 observer_attach_normal_stop (tui_on_normal_stop
);
153 observer_attach_signal_received (tui_on_signal_received
);
154 observer_attach_end_stepping_range (tui_on_end_stepping_range
);
155 observer_attach_signal_exited (tui_on_signal_exited
);
156 observer_attach_exited (tui_on_exited
);
157 observer_attach_no_history (tui_on_no_history
);
158 observer_attach_sync_execution_done (tui_on_sync_execution_done
);
159 observer_attach_command_error (tui_on_command_error
);
165 tui_resume (void *data
)
167 struct ui_file
*stream
;
169 /* gdb_setup_readline will change gdb_stdout. If the TUI was
170 previously writing to gdb_stdout, then set it to the new
171 gdb_stdout afterwards. */
173 stream
= cli_out_set_stream (tui_old_uiout
, gdb_stdout
);
174 if (stream
!= gdb_stdout
)
176 cli_out_set_stream (tui_old_uiout
, stream
);
180 gdb_setup_readline ();
183 cli_out_set_stream (tui_old_uiout
, gdb_stdout
);
185 if (tui_start_enabled
)
191 tui_suspend (void *data
)
193 tui_start_enabled
= tui_active
;
198 static struct ui_out
*
199 tui_ui_out (struct interp
*self
)
204 return tui_old_uiout
;
207 static struct gdb_exception
208 tui_exec (void *data
, const char *command_str
)
210 internal_error (__FILE__
, __LINE__
, _("tui_exec called"));
213 /* The TUI interpreter's vtable. */
215 static const struct interp_procs tui_interp_procs
= {
225 /* Factory for TUI interpreters. */
227 static struct interp
*
228 tui_interp_factory (const char *name
)
230 return interp_new (name
, &tui_interp_procs
, NULL
);
233 /* Provide a prototype to silence -Wmissing-prototypes. */
234 extern initialize_file_ftype _initialize_tui_interp
;
237 _initialize_tui_interp (void)
239 interp_factory_register (INTERP_TUI
, tui_interp_factory
);
241 if (interpreter_p
&& strcmp (interpreter_p
, INTERP_TUI
) == 0)
242 tui_start_enabled
= 1;
244 if (interpreter_p
&& strcmp (interpreter_p
, INTERP_CONSOLE
) == 0)
246 xfree (interpreter_p
);
247 interpreter_p
= xstrdup (INTERP_TUI
);