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4a8f6654 AC |
1 | /* CLI Definitions for GDB, the GNU debugger. |
2 | ||
32d0add0 | 3 | Copyright (C) 2002-2015 Free Software Foundation, Inc. |
4a8f6654 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 |
4a8f6654 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/>. */ |
4a8f6654 AC |
19 | |
20 | #include "defs.h" | |
21 | #include "interps.h" | |
4a8f6654 AC |
22 | #include "event-top.h" |
23 | #include "ui-out.h" | |
24 | #include "cli-out.h" | |
25 | #include "top.h" /* for "execute_command" */ | |
fd664c91 PA |
26 | #include "infrun.h" |
27 | #include "observer.h" | |
4a8f6654 | 28 | |
ebcd3b23 MS |
29 | /* These are the ui_out and the interpreter for the console |
30 | interpreter. */ | |
fd664c91 PA |
31 | struct ui_out *cli_uiout; |
32 | static struct interp *cli_interp; | |
4a8f6654 | 33 | |
4791eb66 | 34 | /* Longjmp-safe wrapper for "execute_command". */ |
71fff37b | 35 | static struct gdb_exception safe_execute_command (struct ui_out *uiout, |
ebcd3b23 MS |
36 | char *command, |
37 | int from_tty); | |
fd664c91 PA |
38 | |
39 | /* Observers for several run control events. If the interpreter is | |
40 | quiet (i.e., another interpreter is being run with | |
41 | interpreter-exec), print nothing. */ | |
42 | ||
243a9253 PA |
43 | /* Observer for the normal_stop notification. */ |
44 | ||
45 | static void | |
46 | cli_on_normal_stop (struct bpstats *bs, int print_frame) | |
47 | { | |
48 | if (!interp_quiet_p (cli_interp)) | |
49 | { | |
50 | if (print_frame) | |
51 | print_stop_event (cli_uiout); | |
52 | } | |
53 | } | |
54 | ||
fd664c91 PA |
55 | /* Observer for the signal_received notification. */ |
56 | ||
57 | static void | |
58 | cli_on_signal_received (enum gdb_signal siggnal) | |
59 | { | |
60 | if (!interp_quiet_p (cli_interp)) | |
61 | print_signal_received_reason (cli_uiout, siggnal); | |
62 | } | |
63 | ||
64 | /* Observer for the end_stepping_range notification. */ | |
65 | ||
66 | static void | |
67 | cli_on_end_stepping_range (void) | |
68 | { | |
69 | if (!interp_quiet_p (cli_interp)) | |
70 | print_end_stepping_range_reason (cli_uiout); | |
71 | } | |
72 | ||
73 | /* Observer for the signalled notification. */ | |
74 | ||
75 | static void | |
76 | cli_on_signal_exited (enum gdb_signal siggnal) | |
77 | { | |
78 | if (!interp_quiet_p (cli_interp)) | |
79 | print_signal_exited_reason (cli_uiout, siggnal); | |
80 | } | |
81 | ||
82 | /* Observer for the exited notification. */ | |
83 | ||
84 | static void | |
85 | cli_on_exited (int exitstatus) | |
86 | { | |
87 | if (!interp_quiet_p (cli_interp)) | |
88 | print_exited_reason (cli_uiout, exitstatus); | |
89 | } | |
90 | ||
91 | /* Observer for the no_history notification. */ | |
92 | ||
93 | static void | |
94 | cli_on_no_history (void) | |
95 | { | |
96 | if (!interp_quiet_p (cli_interp)) | |
97 | print_no_history_reason (cli_uiout); | |
98 | } | |
99 | ||
92bcb5f9 PA |
100 | /* Observer for the sync_execution_done notification. */ |
101 | ||
102 | static void | |
103 | cli_on_sync_execution_done (void) | |
104 | { | |
105 | if (!interp_quiet_p (cli_interp)) | |
106 | display_gdb_prompt (NULL); | |
107 | } | |
108 | ||
109 | /* Observer for the command_error notification. */ | |
110 | ||
111 | static void | |
112 | cli_on_command_error (void) | |
113 | { | |
114 | if (!interp_quiet_p (cli_interp)) | |
115 | display_gdb_prompt (NULL); | |
116 | } | |
117 | ||
4a8f6654 AC |
118 | /* These implement the cli out interpreter: */ |
119 | ||
120 | static void * | |
4801a9a3 | 121 | cli_interpreter_init (struct interp *self, int top_level) |
4a8f6654 | 122 | { |
fd664c91 | 123 | /* If changing this, remember to update tui-interp.c as well. */ |
243a9253 | 124 | observer_attach_normal_stop (cli_on_normal_stop); |
fd664c91 PA |
125 | observer_attach_end_stepping_range (cli_on_end_stepping_range); |
126 | observer_attach_signal_received (cli_on_signal_received); | |
127 | observer_attach_signal_exited (cli_on_signal_exited); | |
128 | observer_attach_exited (cli_on_exited); | |
129 | observer_attach_no_history (cli_on_no_history); | |
92bcb5f9 PA |
130 | observer_attach_sync_execution_done (cli_on_sync_execution_done); |
131 | observer_attach_command_error (cli_on_command_error); | |
fd664c91 | 132 | |
4a8f6654 AC |
133 | return NULL; |
134 | } | |
135 | ||
136 | static int | |
137 | cli_interpreter_resume (void *data) | |
138 | { | |
38caaeec DJ |
139 | struct ui_file *stream; |
140 | ||
4a8f6654 | 141 | /*sync_execution = 1; */ |
38caaeec | 142 | |
ebcd3b23 MS |
143 | /* gdb_setup_readline will change gdb_stdout. If the CLI was |
144 | previously writing to gdb_stdout, then set it to the new | |
145 | gdb_stdout afterwards. */ | |
38caaeec DJ |
146 | |
147 | stream = cli_out_set_stream (cli_uiout, gdb_stdout); | |
148 | if (stream != gdb_stdout) | |
149 | { | |
150 | cli_out_set_stream (cli_uiout, stream); | |
151 | stream = NULL; | |
152 | } | |
153 | ||
4a8f6654 | 154 | gdb_setup_readline (); |
38caaeec DJ |
155 | |
156 | if (stream != NULL) | |
157 | cli_out_set_stream (cli_uiout, gdb_stdout); | |
158 | ||
4a8f6654 AC |
159 | return 1; |
160 | } | |
161 | ||
162 | static int | |
163 | cli_interpreter_suspend (void *data) | |
164 | { | |
165 | gdb_disable_readline (); | |
166 | return 1; | |
167 | } | |
168 | ||
71fff37b | 169 | static struct gdb_exception |
4a8f6654 AC |
170 | cli_interpreter_exec (void *data, const char *command_str) |
171 | { | |
4a8f6654 | 172 | struct ui_file *old_stream; |
71fff37b | 173 | struct gdb_exception result; |
4a8f6654 AC |
174 | |
175 | /* FIXME: cagney/2003-02-01: Need to const char *propogate | |
176 | safe_execute_command. */ | |
177 | char *str = strcpy (alloca (strlen (command_str) + 1), command_str); | |
178 | ||
ebcd3b23 MS |
179 | /* gdb_stdout could change between the time cli_uiout was |
180 | initialized and now. Since we're probably using a different | |
181 | interpreter which has a new ui_file for gdb_stdout, use that one | |
182 | instead of the default. | |
4a8f6654 | 183 | |
ebcd3b23 MS |
184 | It is important that it gets reset everytime, since the user |
185 | could set gdb to use a different interpreter. */ | |
4a8f6654 AC |
186 | old_stream = cli_out_set_stream (cli_uiout, gdb_stdout); |
187 | result = safe_execute_command (cli_uiout, str, 1); | |
188 | cli_out_set_stream (cli_uiout, old_stream); | |
189 | return result; | |
190 | } | |
191 | ||
71fff37b | 192 | static struct gdb_exception |
f9679975 | 193 | safe_execute_command (struct ui_out *command_uiout, char *command, int from_tty) |
4a8f6654 | 194 | { |
7556d4a4 | 195 | struct gdb_exception e = exception_none; |
f9679975 PA |
196 | struct ui_out *saved_uiout; |
197 | ||
198 | /* Save and override the global ``struct ui_out'' builder. */ | |
79a45e25 PA |
199 | saved_uiout = current_uiout; |
200 | current_uiout = command_uiout; | |
cdb27c12 | 201 | |
492d29ea | 202 | TRY |
04bd08de TT |
203 | { |
204 | execute_command (command, from_tty); | |
205 | } | |
492d29ea | 206 | CATCH (exception, RETURN_MASK_ALL) |
7556d4a4 PA |
207 | { |
208 | e = exception; | |
209 | } | |
492d29ea | 210 | END_CATCH |
f9679975 PA |
211 | |
212 | /* Restore the global builder. */ | |
79a45e25 | 213 | current_uiout = saved_uiout; |
f9679975 | 214 | |
8a076db9 AC |
215 | /* FIXME: cagney/2005-01-13: This shouldn't be needed. Instead the |
216 | caller should print the exception. */ | |
9cbc821d | 217 | exception_print (gdb_stderr, e); |
8a076db9 | 218 | return e; |
4a8f6654 AC |
219 | } |
220 | ||
4801a9a3 PA |
221 | static struct ui_out * |
222 | cli_ui_out (struct interp *self) | |
223 | { | |
224 | return cli_uiout; | |
225 | } | |
4a8f6654 | 226 | |
4791eb66 | 227 | /* Standard gdb initialization hook. */ |
b9362cc7 AC |
228 | extern initialize_file_ftype _initialize_cli_interp; /* -Wmissing-prototypes */ |
229 | ||
4a8f6654 AC |
230 | void |
231 | _initialize_cli_interp (void) | |
232 | { | |
233 | static const struct interp_procs procs = { | |
234 | cli_interpreter_init, /* init_proc */ | |
235 | cli_interpreter_resume, /* resume_proc */ | |
236 | cli_interpreter_suspend, /* suspend_proc */ | |
237 | cli_interpreter_exec, /* exec_proc */ | |
4d09c5b4 AB |
238 | cli_ui_out, /* ui_out_proc */ |
239 | NULL, /* set_logging_proc */ | |
240 | cli_command_loop /* command_loop_proc */ | |
4a8f6654 | 241 | }; |
4a8f6654 | 242 | |
4791eb66 | 243 | /* Create a default uiout builder for the CLI. */ |
4a8f6654 | 244 | cli_uiout = cli_out_new (gdb_stdout); |
4801a9a3 | 245 | cli_interp = interp_new (INTERP_CONSOLE, &procs); |
4a8f6654 AC |
246 | |
247 | interp_add (cli_interp); | |
248 | } |