Commit | Line | Data |
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021e7609 AC |
1 | /* TUI Interpreter definitions for GDB, the GNU debugger. |
2 | ||
618f726f | 3 | Copyright (C) 2003-2016 Free Software Foundation, Inc. |
021e7609 AC |
4 | |
5 | This file is part of GDB. | |
6 | ||
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
021e7609 AC |
10 | (at your option) any later version. |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
021e7609 AC |
19 | |
20 | #include "defs.h" | |
3c216924 | 21 | #include "cli/cli-interp.h" |
021e7609 AC |
22 | #include "interps.h" |
23 | #include "top.h" | |
24 | #include "event-top.h" | |
25 | #include "event-loop.h" | |
26 | #include "ui-out.h" | |
95cd630e | 27 | #include "cli-out.h" |
d7b2e967 | 28 | #include "tui/tui-data.h" |
021e7609 | 29 | #include "readline/readline.h" |
d7b2e967 | 30 | #include "tui/tui-win.h" |
021e7609 | 31 | #include "tui/tui.h" |
d7b2e967 | 32 | #include "tui/tui-io.h" |
fd664c91 PA |
33 | #include "infrun.h" |
34 | #include "observer.h" | |
35 | ||
36 | static struct ui_out *tui_ui_out (struct interp *self); | |
021e7609 | 37 | |
1cc6d956 MS |
38 | /* Set to 1 when the TUI mode must be activated when we first start |
39 | gdb. */ | |
63858210 SC |
40 | static int tui_start_enabled = 0; |
41 | ||
73ab01a0 PA |
42 | /* Returns the INTERP if the INTERP is a TUI, and returns NULL |
43 | otherwise. */ | |
44 | ||
45 | static struct interp * | |
46 | as_tui_interp (struct interp *interp) | |
47 | { | |
48 | if (strcmp (interp_name (interp), INTERP_TUI) == 0) | |
49 | return interp; | |
50 | return NULL; | |
51 | } | |
fd664c91 | 52 | |
021e7609 AC |
53 | /* Cleanup the tui before exiting. */ |
54 | ||
55 | static void | |
56 | tui_exit (void) | |
57 | { | |
1cc6d956 MS |
58 | /* Disable the tui. Curses mode is left leaving the screen in a |
59 | clean state (see endwin()). */ | |
021e7609 AC |
60 | tui_disable (); |
61 | } | |
62 | ||
fd664c91 PA |
63 | /* Observers for several run control events. If the interpreter is |
64 | quiet (i.e., another interpreter is being run with | |
65 | interpreter-exec), print nothing. */ | |
66 | ||
243a9253 PA |
67 | /* Observer for the normal_stop notification. */ |
68 | ||
69 | static void | |
70 | tui_on_normal_stop (struct bpstats *bs, int print_frame) | |
71 | { | |
73ab01a0 PA |
72 | struct switch_thru_all_uis state; |
73 | ||
74 | SWITCH_THRU_ALL_UIS (state) | |
243a9253 | 75 | { |
73ab01a0 PA |
76 | struct interp *tui = as_tui_interp (top_level_interpreter ()); |
77 | ||
78 | if (tui == NULL) | |
79 | continue; | |
80 | ||
243a9253 | 81 | if (print_frame) |
73ab01a0 | 82 | print_stop_event (tui_ui_out (tui)); |
243a9253 PA |
83 | } |
84 | } | |
85 | ||
fd664c91 PA |
86 | /* Observer for the signal_received notification. */ |
87 | ||
88 | static void | |
89 | tui_on_signal_received (enum gdb_signal siggnal) | |
90 | { | |
73ab01a0 PA |
91 | struct switch_thru_all_uis state; |
92 | ||
93 | SWITCH_THRU_ALL_UIS (state) | |
94 | { | |
95 | struct interp *tui = as_tui_interp (top_level_interpreter ()); | |
96 | ||
97 | if (tui == NULL) | |
98 | continue; | |
99 | ||
100 | print_signal_received_reason (tui_ui_out (tui), siggnal); | |
101 | } | |
fd664c91 PA |
102 | } |
103 | ||
104 | /* Observer for the end_stepping_range notification. */ | |
105 | ||
106 | static void | |
107 | tui_on_end_stepping_range (void) | |
108 | { | |
73ab01a0 PA |
109 | struct switch_thru_all_uis state; |
110 | ||
111 | SWITCH_THRU_ALL_UIS (state) | |
112 | { | |
113 | struct interp *tui = as_tui_interp (top_level_interpreter ()); | |
114 | ||
115 | if (tui == NULL) | |
116 | continue; | |
117 | ||
118 | print_end_stepping_range_reason (tui_ui_out (tui)); | |
119 | } | |
fd664c91 PA |
120 | } |
121 | ||
122 | /* Observer for the signal_exited notification. */ | |
123 | ||
124 | static void | |
125 | tui_on_signal_exited (enum gdb_signal siggnal) | |
126 | { | |
73ab01a0 PA |
127 | struct switch_thru_all_uis state; |
128 | ||
129 | SWITCH_THRU_ALL_UIS (state) | |
130 | { | |
131 | struct interp *tui = as_tui_interp (top_level_interpreter ()); | |
132 | ||
133 | if (tui == NULL) | |
134 | continue; | |
135 | ||
136 | print_signal_exited_reason (tui_ui_out (tui), siggnal); | |
137 | } | |
fd664c91 PA |
138 | } |
139 | ||
140 | /* Observer for the exited notification. */ | |
141 | ||
142 | static void | |
143 | tui_on_exited (int exitstatus) | |
144 | { | |
73ab01a0 PA |
145 | struct switch_thru_all_uis state; |
146 | ||
147 | SWITCH_THRU_ALL_UIS (state) | |
148 | { | |
149 | struct interp *tui = as_tui_interp (top_level_interpreter ()); | |
150 | ||
151 | if (tui == NULL) | |
152 | continue; | |
153 | ||
154 | print_exited_reason (tui_ui_out (tui), exitstatus); | |
155 | } | |
fd664c91 PA |
156 | } |
157 | ||
158 | /* Observer for the no_history notification. */ | |
159 | ||
160 | static void | |
161 | tui_on_no_history (void) | |
162 | { | |
73ab01a0 PA |
163 | struct switch_thru_all_uis state; |
164 | ||
165 | SWITCH_THRU_ALL_UIS (state) | |
166 | { | |
167 | struct interp *tui = as_tui_interp (top_level_interpreter ()); | |
168 | ||
169 | if (tui == NULL) | |
170 | continue; | |
171 | ||
172 | print_no_history_reason (tui_ui_out (tui)); | |
173 | } | |
fd664c91 PA |
174 | } |
175 | ||
92bcb5f9 PA |
176 | /* Observer for the sync_execution_done notification. */ |
177 | ||
178 | static void | |
179 | tui_on_sync_execution_done (void) | |
180 | { | |
73ab01a0 PA |
181 | struct interp *tui = as_tui_interp (top_level_interpreter ()); |
182 | ||
183 | if (tui == NULL) | |
184 | return; | |
185 | ||
186 | display_gdb_prompt (NULL); | |
92bcb5f9 PA |
187 | } |
188 | ||
189 | /* Observer for the command_error notification. */ | |
190 | ||
191 | static void | |
192 | tui_on_command_error (void) | |
193 | { | |
73ab01a0 PA |
194 | struct interp *tui = as_tui_interp (top_level_interpreter ()); |
195 | ||
196 | if (tui == NULL) | |
197 | return; | |
198 | ||
199 | display_gdb_prompt (NULL); | |
92bcb5f9 PA |
200 | } |
201 | ||
021e7609 AC |
202 | /* These implement the TUI interpreter. */ |
203 | ||
204 | static void * | |
4801a9a3 | 205 | tui_init (struct interp *self, int top_level) |
021e7609 AC |
206 | { |
207 | /* Install exit handler to leave the screen in a good shape. */ | |
208 | atexit (tui_exit); | |
209 | ||
dd1abb8c | 210 | tui_initialize_static_data (); |
021e7609 AC |
211 | |
212 | tui_initialize_io (); | |
9612b5ec | 213 | tui_initialize_win (); |
1180b2c8 L |
214 | if (ui_file_isatty (gdb_stdout)) |
215 | tui_initialize_readline (); | |
021e7609 AC |
216 | |
217 | return NULL; | |
218 | } | |
219 | ||
220 | static int | |
221 | tui_resume (void *data) | |
222 | { | |
3c216924 | 223 | struct ui *ui = current_ui; |
95cd630e DJ |
224 | struct ui_file *stream; |
225 | ||
1cc6d956 MS |
226 | /* gdb_setup_readline will change gdb_stdout. If the TUI was |
227 | previously writing to gdb_stdout, then set it to the new | |
228 | gdb_stdout afterwards. */ | |
95cd630e DJ |
229 | |
230 | stream = cli_out_set_stream (tui_old_uiout, gdb_stdout); | |
231 | if (stream != gdb_stdout) | |
232 | { | |
233 | cli_out_set_stream (tui_old_uiout, stream); | |
234 | stream = NULL; | |
235 | } | |
236 | ||
3c216924 PA |
237 | gdb_setup_readline (1); |
238 | ||
239 | ui->input_handler = command_line_handler; | |
95cd630e DJ |
240 | |
241 | if (stream != NULL) | |
242 | cli_out_set_stream (tui_old_uiout, gdb_stdout); | |
243 | ||
63858210 SC |
244 | if (tui_start_enabled) |
245 | tui_enable (); | |
021e7609 AC |
246 | return 1; |
247 | } | |
248 | ||
249 | static int | |
250 | tui_suspend (void *data) | |
251 | { | |
63858210 | 252 | tui_start_enabled = tui_active; |
021e7609 AC |
253 | tui_disable (); |
254 | return 1; | |
255 | } | |
256 | ||
4801a9a3 PA |
257 | static struct ui_out * |
258 | tui_ui_out (struct interp *self) | |
259 | { | |
260 | if (tui_active) | |
261 | return tui_out; | |
262 | else | |
263 | return tui_old_uiout; | |
264 | } | |
265 | ||
71fff37b | 266 | static struct gdb_exception |
021e7609 AC |
267 | tui_exec (void *data, const char *command_str) |
268 | { | |
e2e0b3e5 | 269 | internal_error (__FILE__, __LINE__, _("tui_exec called")); |
021e7609 AC |
270 | } |
271 | ||
8322445e PA |
272 | /* The TUI interpreter's vtable. */ |
273 | ||
274 | static const struct interp_procs tui_interp_procs = { | |
275 | tui_init, | |
276 | tui_resume, | |
277 | tui_suspend, | |
278 | tui_exec, | |
279 | tui_ui_out, | |
280 | NULL, | |
3c216924 PA |
281 | cli_command_loop, |
282 | cli_interpreter_supports_command_editing, | |
8322445e PA |
283 | }; |
284 | ||
285 | /* Factory for TUI interpreters. */ | |
286 | ||
287 | static struct interp * | |
288 | tui_interp_factory (const char *name) | |
289 | { | |
290 | return interp_new (name, &tui_interp_procs, NULL); | |
291 | } | |
292 | ||
2c0b251b PA |
293 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
294 | extern initialize_file_ftype _initialize_tui_interp; | |
295 | ||
021e7609 AC |
296 | void |
297 | _initialize_tui_interp (void) | |
298 | { | |
8322445e PA |
299 | interp_factory_register (INTERP_TUI, tui_interp_factory); |
300 | ||
cc4349ed | 301 | if (interpreter_p && strcmp (interpreter_p, INTERP_TUI) == 0) |
63858210 SC |
302 | tui_start_enabled = 1; |
303 | ||
304 | if (interpreter_p && strcmp (interpreter_p, INTERP_CONSOLE) == 0) | |
305 | { | |
306 | xfree (interpreter_p); | |
cc4349ed | 307 | interpreter_p = xstrdup (INTERP_TUI); |
63858210 | 308 | } |
73ab01a0 PA |
309 | |
310 | /* If changing this, remember to update cli-interp.c as well. */ | |
311 | observer_attach_normal_stop (tui_on_normal_stop); | |
312 | observer_attach_signal_received (tui_on_signal_received); | |
313 | observer_attach_end_stepping_range (tui_on_end_stepping_range); | |
314 | observer_attach_signal_exited (tui_on_signal_exited); | |
315 | observer_attach_exited (tui_on_exited); | |
316 | observer_attach_no_history (tui_on_no_history); | |
317 | observer_attach_sync_execution_done (tui_on_sync_execution_done); | |
318 | observer_attach_command_error (tui_on_command_error); | |
021e7609 | 319 | } |