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" | |
21 | #include "interps.h" | |
22 | #include "top.h" | |
23 | #include "event-top.h" | |
24 | #include "event-loop.h" | |
25 | #include "ui-out.h" | |
95cd630e | 26 | #include "cli-out.h" |
d7b2e967 | 27 | #include "tui/tui-data.h" |
021e7609 | 28 | #include "readline/readline.h" |
d7b2e967 | 29 | #include "tui/tui-win.h" |
021e7609 | 30 | #include "tui/tui.h" |
d7b2e967 | 31 | #include "tui/tui-io.h" |
fd664c91 PA |
32 | #include "infrun.h" |
33 | #include "observer.h" | |
34 | ||
35 | static struct ui_out *tui_ui_out (struct interp *self); | |
021e7609 | 36 | |
1cc6d956 MS |
37 | /* Set to 1 when the TUI mode must be activated when we first start |
38 | gdb. */ | |
63858210 SC |
39 | static int tui_start_enabled = 0; |
40 | ||
fd664c91 PA |
41 | /* The TUI interpreter. */ |
42 | static struct interp *tui_interp; | |
43 | ||
021e7609 AC |
44 | /* Cleanup the tui before exiting. */ |
45 | ||
46 | static void | |
47 | tui_exit (void) | |
48 | { | |
1cc6d956 MS |
49 | /* Disable the tui. Curses mode is left leaving the screen in a |
50 | clean state (see endwin()). */ | |
021e7609 AC |
51 | tui_disable (); |
52 | } | |
53 | ||
fd664c91 PA |
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. */ | |
57 | ||
243a9253 PA |
58 | /* Observer for the normal_stop notification. */ |
59 | ||
60 | static void | |
61 | tui_on_normal_stop (struct bpstats *bs, int print_frame) | |
62 | { | |
63 | if (!interp_quiet_p (tui_interp)) | |
64 | { | |
65 | if (print_frame) | |
66 | print_stop_event (tui_ui_out (tui_interp)); | |
67 | } | |
68 | } | |
69 | ||
fd664c91 PA |
70 | /* Observer for the signal_received notification. */ |
71 | ||
72 | static void | |
73 | tui_on_signal_received (enum gdb_signal siggnal) | |
74 | { | |
75 | if (!interp_quiet_p (tui_interp)) | |
76 | print_signal_received_reason (tui_ui_out (tui_interp), siggnal); | |
77 | } | |
78 | ||
79 | /* Observer for the end_stepping_range notification. */ | |
80 | ||
81 | static void | |
82 | tui_on_end_stepping_range (void) | |
83 | { | |
84 | if (!interp_quiet_p (tui_interp)) | |
85 | print_end_stepping_range_reason (tui_ui_out (tui_interp)); | |
86 | } | |
87 | ||
88 | /* Observer for the signal_exited notification. */ | |
89 | ||
90 | static void | |
91 | tui_on_signal_exited (enum gdb_signal siggnal) | |
92 | { | |
93 | if (!interp_quiet_p (tui_interp)) | |
94 | print_signal_exited_reason (tui_ui_out (tui_interp), siggnal); | |
95 | } | |
96 | ||
97 | /* Observer for the exited notification. */ | |
98 | ||
99 | static void | |
100 | tui_on_exited (int exitstatus) | |
101 | { | |
102 | if (!interp_quiet_p (tui_interp)) | |
103 | print_exited_reason (tui_ui_out (tui_interp), exitstatus); | |
104 | } | |
105 | ||
106 | /* Observer for the no_history notification. */ | |
107 | ||
108 | static void | |
109 | tui_on_no_history (void) | |
110 | { | |
111 | if (!interp_quiet_p (tui_interp)) | |
112 | print_no_history_reason (tui_ui_out (tui_interp)); | |
113 | } | |
114 | ||
92bcb5f9 PA |
115 | /* Observer for the sync_execution_done notification. */ |
116 | ||
117 | static void | |
118 | tui_on_sync_execution_done (void) | |
119 | { | |
120 | if (!interp_quiet_p (tui_interp)) | |
121 | display_gdb_prompt (NULL); | |
122 | } | |
123 | ||
124 | /* Observer for the command_error notification. */ | |
125 | ||
126 | static void | |
127 | tui_on_command_error (void) | |
128 | { | |
129 | if (!interp_quiet_p (tui_interp)) | |
130 | display_gdb_prompt (NULL); | |
131 | } | |
132 | ||
021e7609 AC |
133 | /* These implement the TUI interpreter. */ |
134 | ||
135 | static void * | |
4801a9a3 | 136 | tui_init (struct interp *self, int top_level) |
021e7609 AC |
137 | { |
138 | /* Install exit handler to leave the screen in a good shape. */ | |
139 | atexit (tui_exit); | |
140 | ||
8322445e PA |
141 | if (top_level) |
142 | tui_interp = self; | |
143 | ||
dd1abb8c | 144 | tui_initialize_static_data (); |
021e7609 AC |
145 | |
146 | tui_initialize_io (); | |
9612b5ec | 147 | tui_initialize_win (); |
1180b2c8 L |
148 | if (ui_file_isatty (gdb_stdout)) |
149 | tui_initialize_readline (); | |
021e7609 | 150 | |
fd664c91 | 151 | /* If changing this, remember to update cli-interp.c as well. */ |
243a9253 | 152 | observer_attach_normal_stop (tui_on_normal_stop); |
fd664c91 PA |
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); | |
92bcb5f9 PA |
158 | observer_attach_sync_execution_done (tui_on_sync_execution_done); |
159 | observer_attach_command_error (tui_on_command_error); | |
fd664c91 | 160 | |
021e7609 AC |
161 | return NULL; |
162 | } | |
163 | ||
164 | static int | |
165 | tui_resume (void *data) | |
166 | { | |
95cd630e DJ |
167 | struct ui_file *stream; |
168 | ||
1cc6d956 MS |
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. */ | |
95cd630e DJ |
172 | |
173 | stream = cli_out_set_stream (tui_old_uiout, gdb_stdout); | |
174 | if (stream != gdb_stdout) | |
175 | { | |
176 | cli_out_set_stream (tui_old_uiout, stream); | |
177 | stream = NULL; | |
178 | } | |
179 | ||
021e7609 | 180 | gdb_setup_readline (); |
95cd630e DJ |
181 | |
182 | if (stream != NULL) | |
183 | cli_out_set_stream (tui_old_uiout, gdb_stdout); | |
184 | ||
63858210 SC |
185 | if (tui_start_enabled) |
186 | tui_enable (); | |
021e7609 AC |
187 | return 1; |
188 | } | |
189 | ||
190 | static int | |
191 | tui_suspend (void *data) | |
192 | { | |
63858210 | 193 | tui_start_enabled = tui_active; |
021e7609 AC |
194 | tui_disable (); |
195 | return 1; | |
196 | } | |
197 | ||
4801a9a3 PA |
198 | static struct ui_out * |
199 | tui_ui_out (struct interp *self) | |
200 | { | |
201 | if (tui_active) | |
202 | return tui_out; | |
203 | else | |
204 | return tui_old_uiout; | |
205 | } | |
206 | ||
71fff37b | 207 | static struct gdb_exception |
021e7609 AC |
208 | tui_exec (void *data, const char *command_str) |
209 | { | |
e2e0b3e5 | 210 | internal_error (__FILE__, __LINE__, _("tui_exec called")); |
021e7609 AC |
211 | } |
212 | ||
8322445e PA |
213 | /* The TUI interpreter's vtable. */ |
214 | ||
215 | static const struct interp_procs tui_interp_procs = { | |
216 | tui_init, | |
217 | tui_resume, | |
218 | tui_suspend, | |
219 | tui_exec, | |
220 | tui_ui_out, | |
221 | NULL, | |
222 | cli_command_loop | |
223 | }; | |
224 | ||
225 | /* Factory for TUI interpreters. */ | |
226 | ||
227 | static struct interp * | |
228 | tui_interp_factory (const char *name) | |
229 | { | |
230 | return interp_new (name, &tui_interp_procs, NULL); | |
231 | } | |
232 | ||
2c0b251b PA |
233 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
234 | extern initialize_file_ftype _initialize_tui_interp; | |
235 | ||
021e7609 AC |
236 | void |
237 | _initialize_tui_interp (void) | |
238 | { | |
8322445e PA |
239 | interp_factory_register (INTERP_TUI, tui_interp_factory); |
240 | ||
cc4349ed | 241 | if (interpreter_p && strcmp (interpreter_p, INTERP_TUI) == 0) |
63858210 SC |
242 | tui_start_enabled = 1; |
243 | ||
244 | if (interpreter_p && strcmp (interpreter_p, INTERP_CONSOLE) == 0) | |
245 | { | |
246 | xfree (interpreter_p); | |
cc4349ed | 247 | interpreter_p = xstrdup (INTERP_TUI); |
63858210 | 248 | } |
021e7609 | 249 | } |