Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
42a4f53d | 3 | Copyright (C) 1986-2019 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
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 |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
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. | |
c906108c | 16 | |
c5aa993b | 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/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "gdbcmd.h" | |
210661e7 EZ |
22 | #include "cli/cli-cmds.h" |
23 | #include "cli/cli-script.h" | |
24 | #include "cli/cli-setshow.h" | |
18a642a1 | 25 | #include "cli/cli-decode.h" |
c906108c SS |
26 | #include "symtab.h" |
27 | #include "inferior.h" | |
45741a9c | 28 | #include "infrun.h" |
042be3a9 | 29 | #include <signal.h> |
c906108c | 30 | #include "target.h" |
68c765e2 | 31 | #include "target-dcache.h" |
c906108c SS |
32 | #include "breakpoint.h" |
33 | #include "gdbtypes.h" | |
34 | #include "expression.h" | |
35 | #include "value.h" | |
36 | #include "language.h" | |
766f8836 | 37 | #include "terminal.h" |
268a13a5 | 38 | #include "gdbsupport/job-control.h" |
c906108c | 39 | #include "annotate.h" |
c5f0f3d0 | 40 | #include "completer.h" |
c906108c | 41 | #include "top.h" |
268a13a5 | 42 | #include "gdbsupport/version.h" |
210661e7 | 43 | #include "serial.h" |
f17517ea | 44 | #include "main.h" |
2e03ee74 | 45 | #include "event-loop.h" |
8ea051c5 | 46 | #include "gdbthread.h" |
6dddc817 | 47 | #include "extension.h" |
b4a14fd0 | 48 | #include "interps.h" |
76727919 | 49 | #include "observable.h" |
bd712aed | 50 | #include "maint.h" |
97c85fc6 | 51 | #include "filenames.h" |
06096720 | 52 | #include "frame.h" |
268a13a5 | 53 | #include "gdbsupport/buffer.h" |
3212b858 | 54 | #include "gdb_select.h" |
268a13a5 | 55 | #include "gdbsupport/scope-exit.h" |
0d12e84c | 56 | #include "gdbarch.h" |
c906108c | 57 | |
371d5dec | 58 | /* readline include files. */ |
dbda9972 AC |
59 | #include "readline/readline.h" |
60 | #include "readline/history.h" | |
c906108c SS |
61 | |
62 | /* readline defines this. */ | |
63 | #undef savestring | |
64 | ||
65 | #include <sys/types.h> | |
c906108c | 66 | |
c2c6d25f | 67 | #include "event-top.h" |
53ce3c39 | 68 | #include <sys/stat.h> |
c906108c | 69 | #include <ctype.h> |
8b93c638 JM |
70 | #include "ui-out.h" |
71 | #include "cli-out.h" | |
2f9d54cf | 72 | #include "tracepoint.h" |
93d6eb10 | 73 | #include "inf-loop.h" |
c906108c | 74 | |
18206ca3 PP |
75 | #if defined(TUI) |
76 | # include "tui/tui.h" | |
77 | #endif | |
78 | ||
60eb5395 PA |
79 | #ifndef O_NOCTTY |
80 | # define O_NOCTTY 0 | |
81 | #endif | |
82 | ||
ca7b0bbc TT |
83 | extern void initialize_all_files (void); |
84 | ||
95298e72 PM |
85 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
86 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
87 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
88 | ||
405feb71 | 89 | /* Default command line prompt. This is overridden in some configs. */ |
104c1213 JM |
90 | |
91 | #ifndef DEFAULT_PROMPT | |
92 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
93 | #endif |
94 | ||
87fb00ea SM |
95 | struct ui_file ** |
96 | current_ui_gdb_stdout_ptr () | |
97 | { | |
98 | return ¤t_ui->m_gdb_stdout; | |
79aa2fe8 PA |
99 | } |
100 | ||
87fb00ea SM |
101 | struct ui_file ** |
102 | current_ui_gdb_stdin_ptr () | |
103 | { | |
104 | return ¤t_ui->m_gdb_stdin; | |
105 | } | |
106 | ||
107 | struct ui_file ** | |
108 | current_ui_gdb_stderr_ptr () | |
109 | { | |
110 | return ¤t_ui->m_gdb_stderr; | |
111 | } | |
112 | ||
113 | struct ui_file ** | |
114 | current_ui_gdb_stdlog_ptr () | |
115 | { | |
116 | return ¤t_ui->m_gdb_stdlog; | |
117 | } | |
118 | ||
119 | struct ui_out ** | |
120 | current_ui_current_uiout_ptr () | |
121 | { | |
122 | return ¤t_ui->m_current_uiout; | |
123 | } | |
79aa2fe8 | 124 | |
c906108c SS |
125 | int inhibit_gdbinit = 0; |
126 | ||
050a2e1d PA |
127 | /* Flag for whether we want to confirm potentially dangerous |
128 | operations. Default is yes. */ | |
129 | ||
491144b5 | 130 | bool confirm = true; |
c906108c | 131 | |
920d2a44 | 132 | static void |
e360902b | 133 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
134 | struct cmd_list_element *c, const char *value) |
135 | { | |
3e43a32a MS |
136 | fprintf_filtered (file, _("Whether to confirm potentially " |
137 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
138 | value); |
139 | } | |
c906108c | 140 | |
c906108c SS |
141 | /* Current working directory. */ |
142 | ||
143 | char *current_directory; | |
144 | ||
2669cade | 145 | /* The last command line executed on the console. Used for command |
68bb5386 PW |
146 | repetitions when the user enters an empty line. */ |
147 | ||
148 | static char *saved_command_line; | |
149 | ||
150 | /* If not NULL, the arguments that should be passed if | |
151 | saved_command_line is repeated. */ | |
152 | ||
153 | static const char *repeat_arguments; | |
154 | ||
155 | /* The previous last command line executed on the console. Used for command | |
156 | repetitions when a command wants to relaunch the previously launched | |
157 | command. We need this as when a command is running, saved_command_line | |
158 | already contains the line of the currently executing command. */ | |
159 | ||
160 | char *previous_saved_command_line; | |
161 | ||
162 | /* If not NULL, the arguments that should be passed if the | |
163 | previous_saved_command_line is repeated. */ | |
164 | ||
165 | static const char *previous_repeat_arguments; | |
c906108c SS |
166 | |
167 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 168 | affects things like recording into the command history, commands |
c906108c SS |
169 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
170 | whatever) can issue its own commands and also send along commands | |
171 | from the user, and have the user not notice that the user interface | |
172 | is issuing commands too. */ | |
173 | int server_command; | |
174 | ||
371d5dec | 175 | /* Timeout limit for response from target. */ |
c906108c | 176 | |
7734102d EZ |
177 | /* The default value has been changed many times over the years. It |
178 | was originally 5 seconds. But that was thought to be a long time | |
ce808e91 | 179 | to sit and wait, so it was changed to 2 seconds. That was thought |
7734102d | 180 | to be plenty unless the connection was going through some terminal |
ce808e91 AC |
181 | server or multiplexer or other form of hairy serial connection. |
182 | ||
7734102d | 183 | In mid-1996, remote_timeout was moved from remote.c to top.c and |
ce808e91 AC |
184 | it began being used in other remote-* targets. It appears that the |
185 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 186 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
187 | |
188 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
7734102d | 189 | 20 seconds is far worse. This demonstrates the difficulty of using |
ce808e91 AC |
190 | a single variable for all protocol timeouts. |
191 | ||
7734102d | 192 | As remote.c is used much more than remote-e7000.c, it was changed |
371d5dec | 193 | back to 2 seconds in 1999. */ |
ce808e91 AC |
194 | |
195 | int remote_timeout = 2; | |
c906108c SS |
196 | |
197 | /* Non-zero tells remote* modules to output debugging info. */ | |
198 | ||
199 | int remote_debug = 0; | |
200 | ||
6dd77b81 | 201 | /* Sbrk location on entry to main. Used for statistics only. */ |
6242c6a6 | 202 | #ifdef HAVE_USEFUL_SBRK |
6dd77b81 RH |
203 | char *lim_at_start; |
204 | #endif | |
205 | ||
c906108c SS |
206 | /* Hooks for alternate command interfaces. */ |
207 | ||
371d5dec MS |
208 | /* This hook is called from within gdb's many mini-event loops which |
209 | could steal control from a real user interface's event loop. It | |
210 | returns non-zero if the user is requesting a detach, zero | |
211 | otherwise. */ | |
7a292a7a | 212 | |
98bbd631 | 213 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 214 | |
c906108c | 215 | |
c906108c SS |
216 | /* Called from print_frame_info to list the line we stopped in. */ |
217 | ||
7734102d | 218 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
371d5dec | 219 | int line, |
7734102d | 220 | int stopline, |
371d5dec | 221 | int noerror); |
c906108c SS |
222 | /* Replaces most of query. */ |
223 | ||
9a4105ab | 224 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
225 | |
226 | /* Replaces most of warning. */ | |
227 | ||
9a4105ab | 228 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 229 | |
9a4105ab AC |
230 | /* These three functions support getting lines of text from the user. |
231 | They are used in sequence. First deprecated_readline_begin_hook is | |
232 | called with a text string that might be (for example) a message for | |
233 | the user to type in a sequence of commands to be executed at a | |
234 | breakpoint. If this function calls back to a GUI, it might take | |
235 | this opportunity to pop up a text interaction window with this | |
236 | message. Next, deprecated_readline_hook is called with a prompt | |
237 | that is emitted prior to collecting the user input. It can be | |
238 | called multiple times. Finally, deprecated_readline_end_hook is | |
239 | called to notify the GUI that we are done with the interaction | |
240 | window and it can close it. */ | |
c906108c | 241 | |
a121b7c1 | 242 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 243 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 244 | void (*deprecated_readline_end_hook) (void); |
c906108c | 245 | |
6426a772 | 246 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 247 | to or detached from an already running process. */ |
6426a772 | 248 | |
9a4105ab AC |
249 | void (*deprecated_attach_hook) (void); |
250 | void (*deprecated_detach_hook) (void); | |
6426a772 | 251 | |
371d5dec MS |
252 | /* Called when going to wait for the target. Usually allows the GUI |
253 | to run while waiting for target events. */ | |
c906108c | 254 | |
9a4105ab | 255 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
256 | struct target_waitstatus *status, |
257 | int options); | |
c906108c | 258 | |
371d5dec MS |
259 | /* Used by UI as a wrapper around command execution. May do various |
260 | things like enabling/disabling buttons, etc... */ | |
c906108c | 261 | |
7734102d | 262 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
95a6b0a1 | 263 | const char *cmd, int from_tty); |
c906108c SS |
264 | |
265 | /* Called when the current thread changes. Argument is thread id. */ | |
266 | ||
9a4105ab | 267 | void (*deprecated_context_hook) (int id); |
c906108c | 268 | |
98d9f24e PA |
269 | /* The highest UI number ever assigned. */ |
270 | static int highest_ui_num; | |
271 | ||
272 | /* See top.h. */ | |
273 | ||
895b8f30 TT |
274 | ui::ui (FILE *instream_, FILE *outstream_, FILE *errstream_) |
275 | : next (nullptr), | |
276 | num (++highest_ui_num), | |
277 | call_readline (nullptr), | |
278 | input_handler (nullptr), | |
279 | command_editing (0), | |
280 | interp_info (nullptr), | |
281 | async (0), | |
282 | secondary_prompt_depth (0), | |
283 | stdin_stream (instream_), | |
284 | instream (instream_), | |
285 | outstream (outstream_), | |
286 | errstream (errstream_), | |
287 | input_fd (fileno (instream)), | |
288 | input_interactive_p (ISATTY (instream)), | |
289 | prompt_state (PROMPT_NEEDED), | |
290 | m_gdb_stdout (new stdio_file (outstream)), | |
291 | m_gdb_stdin (new stdio_file (instream)), | |
292 | m_gdb_stderr (new stderr_file (errstream)), | |
293 | m_gdb_stdlog (m_gdb_stderr), | |
294 | m_current_uiout (nullptr) | |
98d9f24e | 295 | { |
895b8f30 | 296 | buffer_init (&line_buffer); |
98d9f24e PA |
297 | |
298 | if (ui_list == NULL) | |
895b8f30 | 299 | ui_list = this; |
98d9f24e PA |
300 | else |
301 | { | |
302 | struct ui *last; | |
303 | ||
304 | for (last = ui_list; last->next != NULL; last = last->next) | |
305 | ; | |
895b8f30 | 306 | last->next = this; |
98d9f24e | 307 | } |
07169ff7 PA |
308 | } |
309 | ||
895b8f30 | 310 | ui::~ui () |
07169ff7 PA |
311 | { |
312 | struct ui *ui, *uiprev; | |
313 | ||
314 | uiprev = NULL; | |
315 | ||
316 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
895b8f30 | 317 | if (ui == this) |
07169ff7 PA |
318 | break; |
319 | ||
320 | gdb_assert (ui != NULL); | |
321 | ||
322 | if (uiprev != NULL) | |
895b8f30 | 323 | uiprev->next = next; |
07169ff7 | 324 | else |
895b8f30 | 325 | ui_list = next; |
07169ff7 | 326 | |
895b8f30 TT |
327 | delete m_gdb_stdin; |
328 | delete m_gdb_stdout; | |
329 | delete m_gdb_stderr; | |
8194e927 SM |
330 | } |
331 | ||
60eb5395 PA |
332 | /* Open file named NAME for read/write, making sure not to make it the |
333 | controlling terminal. */ | |
334 | ||
6e7bc05c | 335 | static gdb_file_up |
60eb5395 PA |
336 | open_terminal_stream (const char *name) |
337 | { | |
338 | int fd; | |
339 | ||
6e7bc05c | 340 | fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0); |
60eb5395 PA |
341 | if (fd < 0) |
342 | perror_with_name (_("opening terminal failed")); | |
343 | ||
6e7bc05c | 344 | return gdb_file_up (fdopen (fd, "w+")); |
60eb5395 PA |
345 | } |
346 | ||
347 | /* Implementation of the "new-ui" command. */ | |
348 | ||
349 | static void | |
32faf971 | 350 | new_ui_command (const char *args, int from_tty) |
60eb5395 | 351 | { |
60eb5395 | 352 | int argc; |
60eb5395 PA |
353 | const char *interpreter_name; |
354 | const char *tty_name; | |
60eb5395 PA |
355 | |
356 | dont_repeat (); | |
357 | ||
773a1edc TT |
358 | gdb_argv argv (args); |
359 | argc = argv.count (); | |
60eb5395 PA |
360 | |
361 | if (argc < 2) | |
65e65158 | 362 | error (_("Usage: new-ui INTERPRETER TTY")); |
60eb5395 PA |
363 | |
364 | interpreter_name = argv[0]; | |
365 | tty_name = argv[1]; | |
366 | ||
4b6749b9 TT |
367 | { |
368 | scoped_restore save_ui = make_scoped_restore (¤t_ui); | |
8194e927 | 369 | |
afe09f0b GL |
370 | /* Open specified terminal. Note: we used to open it three times, |
371 | once for each of stdin/stdout/stderr, but that does not work | |
372 | with Windows named pipes. */ | |
373 | gdb_file_up stream = open_terminal_stream (tty_name); | |
60eb5395 | 374 | |
895b8f30 | 375 | std::unique_ptr<ui> ui |
afe09f0b | 376 | (new struct ui (stream.get (), stream.get (), stream.get ())); |
60eb5395 | 377 | |
4b6749b9 | 378 | ui->async = 1; |
60eb5395 | 379 | |
895b8f30 | 380 | current_ui = ui.get (); |
60eb5395 | 381 | |
4b6749b9 | 382 | set_top_level_interpreter (interpreter_name); |
60eb5395 | 383 | |
4b6749b9 | 384 | interp_pre_command_loop (top_level_interpreter ()); |
60eb5395 | 385 | |
afe09f0b GL |
386 | /* Make sure the file is not closed. */ |
387 | stream.release (); | |
6e7bc05c | 388 | |
895b8f30 | 389 | ui.release (); |
4b6749b9 | 390 | } |
60eb5395 PA |
391 | |
392 | printf_unfiltered ("New UI allocated\n"); | |
393 | } | |
394 | ||
c906108c SS |
395 | /* Handler for SIGHUP. */ |
396 | ||
397 | #ifdef SIGHUP | |
392a587b | 398 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 399 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 400 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
401 | /* static */ void |
402 | quit_cover (void) | |
c906108c | 403 | { |
e360902b PA |
404 | /* Stop asking user for confirmation --- we're exiting. This |
405 | prevents asking the user dumb questions. */ | |
406 | confirm = 0; | |
c5aa993b | 407 | quit_command ((char *) 0, 0); |
c906108c SS |
408 | } |
409 | #endif /* defined SIGHUP */ | |
410 | \f | |
7a9dd1b2 | 411 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 412 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 413 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 414 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 415 | /* static */ int source_line_number; |
c906108c SS |
416 | |
417 | /* Name of the file we are sourcing. */ | |
392a587b | 418 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 419 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 420 | event-top.c into this file, top.c. */ |
6caa91b6 | 421 | /* static */ std::string source_file_name; |
c906108c | 422 | |
c906108c SS |
423 | /* Read commands from STREAM. */ |
424 | void | |
fba45db2 | 425 | read_command_file (FILE *stream) |
c906108c | 426 | { |
f38d3ad1 | 427 | struct ui *ui = current_ui; |
c906108c | 428 | |
3c9ebddd TT |
429 | scoped_restore save_instream |
430 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
431 | |
432 | /* Read commands from `instream' and execute them until end of file | |
433 | or error reading instream. */ | |
434 | ||
f38d3ad1 | 435 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 | 436 | { |
992a7040 | 437 | const char *command; |
faa4ebe1 PA |
438 | |
439 | /* Get a command-line. This calls the readline package. */ | |
89fbedf3 | 440 | command = command_line_input (NULL, NULL); |
faa4ebe1 PA |
441 | if (command == NULL) |
442 | break; | |
443 | command_handler (command); | |
444 | } | |
c906108c SS |
445 | } |
446 | \f | |
507f3c78 | 447 | void (*pre_init_ui_hook) (void); |
c906108c | 448 | |
e41a3b1a | 449 | #ifdef __MSDOS__ |
70976b65 | 450 | static void |
e41a3b1a AC |
451 | do_chdir_cleanup (void *old_dir) |
452 | { | |
f515a1d6 | 453 | chdir ((const char *) old_dir); |
b8c9b27d | 454 | xfree (old_dir); |
e41a3b1a AC |
455 | } |
456 | #endif | |
457 | ||
54f70bc1 TT |
458 | scoped_value_mark |
459 | prepare_execute_command () | |
4e5d721f | 460 | { |
371d5dec MS |
461 | /* With multiple threads running while the one we're examining is |
462 | stopped, the dcache can get stale without us being able to detect | |
463 | it. For the duration of the command, though, use the dcache to | |
464 | help things like backtrace. */ | |
4e5d721f DE |
465 | if (non_stop) |
466 | target_dcache_invalidate (); | |
028d0ed5 | 467 | |
54f70bc1 | 468 | return scoped_value_mark (); |
4e5d721f DE |
469 | } |
470 | ||
77cce10f PA |
471 | /* Tell the user if the language has changed (except first time) after |
472 | executing a command. */ | |
473 | ||
474 | void | |
475 | check_frame_language_change (void) | |
476 | { | |
477 | static int warned = 0; | |
7ff38b1c | 478 | struct frame_info *frame; |
77cce10f PA |
479 | |
480 | /* First make sure that a new frame has been selected, in case the | |
481 | command or the hooks changed the program state. */ | |
7ff38b1c | 482 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
483 | if (current_language != expected_language) |
484 | { | |
485 | if (language_mode == language_mode_auto && info_verbose) | |
486 | { | |
487 | language_info (1); /* Print what changed. */ | |
488 | } | |
489 | warned = 0; | |
490 | } | |
491 | ||
492 | /* Warn the user if the working language does not match the language | |
493 | of the current frame. Only warn the user if we are actually | |
494 | running the program, i.e. there is a stack. */ | |
495 | /* FIXME: This should be cacheing the frame and only running when | |
496 | the frame changes. */ | |
497 | ||
498 | if (has_stack_frames ()) | |
499 | { | |
500 | enum language flang; | |
501 | ||
7ff38b1c | 502 | flang = get_frame_language (frame); |
77cce10f PA |
503 | if (!warned |
504 | && flang != language_unknown | |
505 | && flang != current_language->la_language) | |
506 | { | |
34916edc | 507 | printf_filtered ("%s\n", _(lang_frame_mismatch_warn)); |
77cce10f PA |
508 | warned = 1; |
509 | } | |
510 | } | |
511 | } | |
512 | ||
98880d46 PA |
513 | /* See top.h. */ |
514 | ||
0b333c5e PA |
515 | void |
516 | wait_sync_command_done (void) | |
517 | { | |
4295e285 | 518 | /* Processing events may change the current UI. */ |
4b6749b9 | 519 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
520 | struct ui *ui = current_ui; |
521 | ||
0b333c5e | 522 | while (gdb_do_one_event () >= 0) |
4295e285 | 523 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
524 | break; |
525 | } | |
526 | ||
527 | /* See top.h. */ | |
528 | ||
98880d46 PA |
529 | void |
530 | maybe_wait_sync_command_done (int was_sync) | |
531 | { | |
532 | /* If the interpreter is in sync mode (we're running a user | |
533 | command's list, running command hooks or similars), and we | |
534 | just ran a synchronous command that started the target, wait | |
535 | for that command to end. */ | |
3b12939d PA |
536 | if (!current_ui->async |
537 | && !was_sync | |
538 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 539 | wait_sync_command_done (); |
98880d46 PA |
540 | } |
541 | ||
85c4be7c TT |
542 | /* See command.h. */ |
543 | ||
544 | void | |
545 | set_repeat_arguments (const char *args) | |
546 | { | |
547 | repeat_arguments = args; | |
548 | } | |
549 | ||
648bf667 | 550 | /* Execute the line P as a command, in the current user context. |
d318976c | 551 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 552 | |
d318976c | 553 | void |
95a6b0a1 | 554 | execute_command (const char *p, int from_tty) |
c906108c | 555 | { |
52f0bd74 | 556 | struct cmd_list_element *c; |
95a6b0a1 TT |
557 | const char *line; |
558 | const char *cmd_start = p; | |
4e5d721f | 559 | |
694c6bf5 | 560 | auto cleanup_if_error = make_scope_exit (bpstat_clear_actions); |
54f70bc1 | 561 | scoped_value_mark cleanup = prepare_execute_command (); |
c906108c | 562 | |
d318976c FN |
563 | /* This can happen when command_line_input hits end of file. */ |
564 | if (p == NULL) | |
5fe41fbf | 565 | { |
694c6bf5 | 566 | cleanup_if_error.release (); |
5fe41fbf TT |
567 | return; |
568 | } | |
c906108c | 569 | |
49d03eab | 570 | target_log_command (p); |
8b93c638 | 571 | |
d318976c FN |
572 | while (*p == ' ' || *p == '\t') |
573 | p++; | |
574 | if (*p) | |
8b93c638 | 575 | { |
6f937416 | 576 | const char *cmd = p; |
95a6b0a1 | 577 | const char *arg; |
3b12939d | 578 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 579 | |
d318976c | 580 | line = p; |
8b93c638 | 581 | |
16026cd7 | 582 | /* If trace-commands is set then this will print this command. */ |
1263a9d5 | 583 | print_command_trace ("%s", p); |
16026cd7 | 584 | |
6f937416 | 585 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
95a6b0a1 | 586 | p = cmd; |
8b93c638 | 587 | |
85c4be7c TT |
588 | scoped_restore save_repeat_args |
589 | = make_scoped_restore (&repeat_arguments, nullptr); | |
95a6b0a1 | 590 | const char *args_pointer = p; |
85c4be7c | 591 | |
d318976c FN |
592 | /* Pass null arg rather than an empty one. */ |
593 | arg = *p ? p : 0; | |
8b93c638 | 594 | |
9f60d481 AC |
595 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
596 | while the is_complete_command(cfunc) test is just plain | |
597 | bogus. They should both be replaced by a test of the form | |
598 | c->strip_trailing_white_space_p. */ | |
599 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
600 | can't be replaced with func. This is because it is the | |
601 | cfunc, and not the func, that has the value that the | |
602 | is_complete_command hack is testing for. */ | |
603 | /* Clear off trailing whitespace, except for set and complete | |
604 | command. */ | |
95a6b0a1 | 605 | std::string without_whitespace; |
d318976c FN |
606 | if (arg |
607 | && c->type != set_cmd | |
bbaca940 | 608 | && !is_complete_command (c)) |
8b93c638 | 609 | { |
95a6b0a1 TT |
610 | const char *old_end = arg + strlen (arg) - 1; |
611 | p = old_end; | |
d318976c FN |
612 | while (p >= arg && (*p == ' ' || *p == '\t')) |
613 | p--; | |
95a6b0a1 TT |
614 | if (p != old_end) |
615 | { | |
616 | without_whitespace = std::string (arg, p + 1); | |
617 | arg = without_whitespace.c_str (); | |
618 | } | |
8b93c638 JM |
619 | } |
620 | ||
371d5dec | 621 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 622 | execute_cmd_pre_hook (c); |
c906108c | 623 | |
1f2bdf09 | 624 | if (c->deprecated_warn_user) |
6f937416 | 625 | deprecated_cmd_warning (line); |
c906108c | 626 | |
7d74f244 | 627 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 628 | if (c->theclass == class_user && c->user_commands) |
d318976c | 629 | execute_user_command (c, arg); |
5b9afe8a YQ |
630 | else if (c->type == set_cmd) |
631 | do_set_command (arg, from_tty, c); | |
632 | else if (c->type == show_cmd) | |
633 | do_show_command (arg, from_tty, c); | |
f436dd25 | 634 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 635 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 636 | else if (deprecated_call_command_hook) |
050a2e1d | 637 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 638 | else |
050a2e1d | 639 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 640 | |
98880d46 | 641 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 642 | |
371d5dec | 643 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 644 | execute_cmd_post_hook (c); |
c906108c | 645 | |
95a6b0a1 | 646 | if (repeat_arguments != NULL && cmd_start == saved_command_line) |
85c4be7c TT |
647 | { |
648 | gdb_assert (strlen (args_pointer) >= strlen (repeat_arguments)); | |
95a6b0a1 TT |
649 | strcpy (saved_command_line + (args_pointer - cmd_start), |
650 | repeat_arguments); | |
85c4be7c | 651 | } |
c906108c SS |
652 | } |
653 | ||
0ca1fc29 JB |
654 | /* Only perform the frame-language-change check if the command |
655 | we just finished executing did not resume the inferior's execution. | |
656 | If it did resume the inferior, we will do that check after | |
657 | the inferior stopped. */ | |
00431a78 | 658 | if (has_stack_frames () && inferior_thread ()->state != THREAD_RUNNING) |
0ca1fc29 | 659 | check_frame_language_change (); |
028d0ed5 | 660 | |
694c6bf5 | 661 | cleanup_if_error.release (); |
c906108c SS |
662 | } |
663 | ||
b8fd0918 PW |
664 | /* Run execute_command for P and FROM_TTY. Sends its output to FILE, |
665 | do not display it to the screen. BATCH_FLAG will be | |
5da1313b JK |
666 | temporarily set to true. */ |
667 | ||
b8fd0918 PW |
668 | void |
669 | execute_command_to_ui_file (struct ui_file *file, const char *p, int from_tty) | |
5da1313b | 670 | { |
5da1313b JK |
671 | /* GDB_STDOUT should be better already restored during these |
672 | restoration callbacks. */ | |
b95de2b7 | 673 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 674 | |
b7b633e9 | 675 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 676 | |
ca5909c7 | 677 | { |
b8fd0918 | 678 | current_uiout->redirect (file); |
ca5909c7 TT |
679 | ui_out_redirect_pop redirect_popper (current_uiout); |
680 | ||
681 | scoped_restore save_stdout | |
b8fd0918 | 682 | = make_scoped_restore (&gdb_stdout, file); |
ca5909c7 | 683 | scoped_restore save_stderr |
b8fd0918 | 684 | = make_scoped_restore (&gdb_stderr, file); |
ca5909c7 | 685 | scoped_restore save_stdlog |
b8fd0918 | 686 | = make_scoped_restore (&gdb_stdlog, file); |
ca5909c7 | 687 | scoped_restore save_stdtarg |
b8fd0918 | 688 | = make_scoped_restore (&gdb_stdtarg, file); |
ca5909c7 | 689 | scoped_restore save_stdtargerr |
b8fd0918 | 690 | = make_scoped_restore (&gdb_stdtargerr, file); |
ca5909c7 TT |
691 | |
692 | execute_command (p, from_tty); | |
693 | } | |
b8fd0918 PW |
694 | } |
695 | ||
696 | /* Run execute_command for P and FROM_TTY. Capture its output into the | |
697 | returned string, do not display it to the screen. BATCH_FLAG will be | |
698 | temporarily set to true. */ | |
699 | ||
700 | std::string | |
701 | execute_command_to_string (const char *p, int from_tty, | |
702 | bool term_out) | |
703 | { | |
704 | string_file str_file (term_out); | |
5da1313b | 705 | |
b8fd0918 | 706 | execute_command_to_ui_file (&str_file, p, from_tty); |
d7e74731 | 707 | return std::move (str_file.string ()); |
5da1313b JK |
708 | } |
709 | ||
d318976c | 710 | \f |
47a80e90 TT |
711 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
712 | set via prevent_dont_repeat. */ | |
713 | ||
714 | static int suppress_dont_repeat = 0; | |
715 | ||
68bb5386 | 716 | /* See command.h */ |
9e0b60a8 | 717 | |
d318976c FN |
718 | void |
719 | dont_repeat (void) | |
9e0b60a8 | 720 | { |
f38d3ad1 PA |
721 | struct ui *ui = current_ui; |
722 | ||
47a80e90 | 723 | if (suppress_dont_repeat || server_command) |
d318976c | 724 | return; |
9e0b60a8 | 725 | |
d318976c | 726 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
727 | thing read from stdin in line and don't want to delete it. Null |
728 | lines won't repeat here in any case. */ | |
268a799a | 729 | if (ui->instream == ui->stdin_stream) |
68bb5386 PW |
730 | { |
731 | *saved_command_line = 0; | |
732 | repeat_arguments = NULL; | |
733 | } | |
734 | } | |
735 | ||
736 | /* See command.h */ | |
737 | ||
fdbc9870 | 738 | const char * |
68bb5386 PW |
739 | repeat_previous () |
740 | { | |
741 | /* Do not repeat this command, as this command is a repeating command. */ | |
742 | dont_repeat (); | |
743 | ||
744 | /* We cannot free saved_command_line, as this line is being executed, | |
745 | so swap it with previous_saved_command_line. */ | |
746 | std::swap (previous_saved_command_line, saved_command_line); | |
747 | std::swap (previous_repeat_arguments, repeat_arguments); | |
fdbc9870 PA |
748 | |
749 | const char *prev = skip_spaces (get_saved_command_line ()); | |
750 | if (*prev == '\0') | |
751 | error (_("No previous command to relaunch")); | |
752 | return prev; | |
9e0b60a8 | 753 | } |
47a80e90 | 754 | |
68bb5386 | 755 | /* See command.h. */ |
47a80e90 | 756 | |
1ac32117 | 757 | scoped_restore_tmpl<int> |
47a80e90 TT |
758 | prevent_dont_repeat (void) |
759 | { | |
1ac32117 | 760 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
761 | } |
762 | ||
68bb5386 PW |
763 | /* See command.h. */ |
764 | ||
765 | char * | |
766 | get_saved_command_line () | |
767 | { | |
768 | return saved_command_line; | |
769 | } | |
770 | ||
771 | /* See command.h. */ | |
772 | ||
773 | void | |
774 | save_command_line (const char *cmd) | |
775 | { | |
776 | xfree (previous_saved_command_line); | |
777 | previous_saved_command_line = saved_command_line; | |
778 | previous_repeat_arguments = repeat_arguments; | |
779 | saved_command_line = xstrdup (cmd); | |
780 | repeat_arguments = NULL; | |
781 | } | |
782 | ||
d318976c FN |
783 | \f |
784 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 785 | |
7a3bde34 | 786 | It prints PROMPT once at the start. |
d318976c FN |
787 | Action is compatible with "readline", e.g. space for the result is |
788 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 789 | |
d318976c | 790 | A NULL return means end of file. */ |
c5c136ea PA |
791 | |
792 | static char * | |
7a3bde34 | 793 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 794 | { |
7a3bde34 | 795 | struct buffer line_buffer; |
f38d3ad1 | 796 | struct ui *ui = current_ui; |
3212b858 PA |
797 | /* Read from stdin if we are executing a user defined command. This |
798 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 799 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 800 | int fd = fileno (stream); |
9e0b60a8 | 801 | |
7a3bde34 PA |
802 | buffer_init (&line_buffer); |
803 | ||
804 | if (prompt != NULL) | |
9e0b60a8 | 805 | { |
d318976c FN |
806 | /* Don't use a _filtered function here. It causes the assumed |
807 | character position to be off, since the newline we read from | |
808 | the user is not accounted for. */ | |
7a3bde34 | 809 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
810 | gdb_flush (gdb_stdout); |
811 | } | |
812 | ||
9e0b60a8 JM |
813 | while (1) |
814 | { | |
7a3bde34 | 815 | int c; |
3212b858 | 816 | fd_set readfds; |
7a3bde34 | 817 | |
3212b858 PA |
818 | QUIT; |
819 | ||
820 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 821 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
822 | FD_ZERO (&readfds); |
823 | FD_SET (fd, &readfds); | |
f0881b37 | 824 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
825 | { |
826 | if (errno == EINTR) | |
827 | { | |
828 | /* If this was ctrl-c, the QUIT above handles it. */ | |
829 | continue; | |
830 | } | |
831 | perror_with_name (("select")); | |
832 | } | |
833 | ||
834 | c = fgetc (stream); | |
9e0b60a8 | 835 | |
d318976c | 836 | if (c == EOF) |
9e0b60a8 | 837 | { |
7a3bde34 | 838 | if (line_buffer.used_size > 0) |
d318976c FN |
839 | /* The last line does not end with a newline. Return it, and |
840 | if we are called again fgetc will still return EOF and | |
841 | we'll return NULL then. */ | |
9e0b60a8 | 842 | break; |
7a3bde34 | 843 | xfree (buffer_finish (&line_buffer)); |
d318976c | 844 | return NULL; |
9e0b60a8 | 845 | } |
c5aa993b | 846 | |
d318976c | 847 | if (c == '\n') |
9e0b60a8 | 848 | { |
7a3bde34 PA |
849 | if (line_buffer.used_size > 0 |
850 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
851 | line_buffer.used_size--; | |
d318976c | 852 | break; |
9e0b60a8 | 853 | } |
9e0b60a8 | 854 | |
7a3bde34 | 855 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
856 | } |
857 | ||
7a3bde34 PA |
858 | buffer_grow_char (&line_buffer, '\0'); |
859 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
860 | } |
861 | ||
d318976c FN |
862 | /* Variables which control command line editing and history |
863 | substitution. These variables are given default values at the end | |
864 | of this file. */ | |
491144b5 | 865 | static bool command_editing_p; |
920d2a44 | 866 | |
d318976c FN |
867 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
868 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 869 | event-top.c into this file, top.c. */ |
920d2a44 | 870 | |
491144b5 | 871 | /* static */ bool history_expansion_p; |
920d2a44 | 872 | |
491144b5 | 873 | static bool write_history_p; |
920d2a44 AC |
874 | static void |
875 | show_write_history_p (struct ui_file *file, int from_tty, | |
876 | struct cmd_list_element *c, const char *value) | |
877 | { | |
878 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
879 | value); | |
880 | } | |
881 | ||
840a9a1f | 882 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
883 | command. The value -1 means unlimited, and -2 means undefined. */ |
884 | static int history_size_setshow_var = -2; | |
840a9a1f | 885 | |
920d2a44 AC |
886 | static void |
887 | show_history_size (struct ui_file *file, int from_tty, | |
888 | struct cmd_list_element *c, const char *value) | |
889 | { | |
890 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
891 | value); | |
892 | } | |
893 | ||
fc637f04 PP |
894 | /* Variable associated with the "history remove-duplicates" option. |
895 | The value -1 means unlimited. */ | |
896 | static int history_remove_duplicates = 0; | |
897 | ||
898 | static void | |
899 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
900 | struct cmd_list_element *c, const char *value) | |
901 | { | |
902 | fprintf_filtered (file, | |
903 | _("The number of history entries to look back at for " | |
904 | "duplicates is %s.\n"), | |
905 | value); | |
906 | } | |
907 | ||
d318976c | 908 | static char *history_filename; |
920d2a44 AC |
909 | static void |
910 | show_history_filename (struct ui_file *file, int from_tty, | |
911 | struct cmd_list_element *c, const char *value) | |
912 | { | |
3e43a32a MS |
913 | fprintf_filtered (file, _("The filename in which to record " |
914 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
915 | value); |
916 | } | |
9e0b60a8 | 917 | |
b4f5539f | 918 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 919 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
920 | a single gdb invocation. At the ordinary top-level prompt we might |
921 | be using the async readline. That means we can't use | |
922 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
923 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
924 | `define'), gdb wants a synchronous response. |
925 | ||
926 | We used to call readline() directly, running it in synchronous | |
927 | mode. But mixing modes this way is not supported, and as of | |
928 | readline 5.x it no longer works; the arrow keys come unbound during | |
929 | the synchronous call. So we make a nested call into the event | |
930 | loop. That's what gdb_readline_wrapper is for. */ | |
931 | ||
932 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
933 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
934 | the user types Control-D for EOF. */ | |
935 | static int gdb_readline_wrapper_done; | |
936 | ||
937 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
938 | is seen. */ | |
939 | static char *gdb_readline_wrapper_result; | |
940 | ||
941 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
942 | to be called after the newline is processed (which will redisplay | |
943 | the prompt). But in gdb_readline_wrapper we will not get a new | |
944 | prompt until the next call, or until we return to the event loop. | |
945 | So we disable this hook around the newline and restore it before we | |
946 | return. */ | |
947 | static void (*saved_after_char_processing_hook) (void); | |
948 | ||
948578a9 | 949 | |
948578a9 PP |
950 | /* See top.h. */ |
951 | ||
952 | int | |
dbf30ca3 | 953 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 954 | { |
dbf30ca3 | 955 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
956 | } |
957 | ||
958 | ||
2e03ee74 DJ |
959 | /* This function is called when readline has seen a complete line of |
960 | text. */ | |
961 | ||
962 | static void | |
95bc9f0b | 963 | gdb_readline_wrapper_line (gdb::unique_xmalloc_ptr<char> &&line) |
2e03ee74 DJ |
964 | { |
965 | gdb_assert (!gdb_readline_wrapper_done); | |
95bc9f0b | 966 | gdb_readline_wrapper_result = line.release (); |
2e03ee74 DJ |
967 | gdb_readline_wrapper_done = 1; |
968 | ||
969 | /* Prevent operate-and-get-next from acting too early. */ | |
970 | saved_after_char_processing_hook = after_char_processing_hook; | |
971 | after_char_processing_hook = NULL; | |
1b05479a DJ |
972 | |
973 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 974 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
975 | reinstall the callback handler, which puts the terminal in raw |
976 | mode (or in readline lingo, in prepped state), when we're next | |
977 | ready to process user input, either in display_gdb_prompt, or if | |
978 | we're handling an asynchronous target event and running in the | |
979 | background, just before returning to the event loop to process | |
980 | further input (or more target events). */ | |
3c216924 | 981 | if (current_ui->command_editing) |
d3d4baed | 982 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
983 | } |
984 | ||
1dbeed45 | 985 | class gdb_readline_wrapper_cleanup |
2e03ee74 | 986 | { |
1dbeed45 TT |
987 | public: |
988 | gdb_readline_wrapper_cleanup () | |
989 | : m_handler_orig (current_ui->input_handler), | |
990 | m_already_prompted_orig (current_ui->command_editing | |
991 | ? rl_already_prompted : 0), | |
992 | m_target_is_async_orig (target_is_async_p ()), | |
993 | m_save_ui (¤t_ui) | |
994 | { | |
995 | current_ui->input_handler = gdb_readline_wrapper_line; | |
996 | current_ui->secondary_prompt_depth++; | |
2e03ee74 | 997 | |
1dbeed45 TT |
998 | if (m_target_is_async_orig) |
999 | target_async (0); | |
1000 | } | |
2e03ee74 | 1001 | |
1dbeed45 TT |
1002 | ~gdb_readline_wrapper_cleanup () |
1003 | { | |
1004 | struct ui *ui = current_ui; | |
0017922d | 1005 | |
1dbeed45 TT |
1006 | if (ui->command_editing) |
1007 | rl_already_prompted = m_already_prompted_orig; | |
0017922d | 1008 | |
1dbeed45 TT |
1009 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
1010 | ui->input_handler = m_handler_orig; | |
2e03ee74 | 1011 | |
1dbeed45 TT |
1012 | /* Don't restore our input handler in readline yet. That would make |
1013 | readline prep the terminal (putting it in raw mode), while the | |
1014 | line we just read may trigger execution of a command that expects | |
1015 | the terminal in the default cooked/canonical mode, such as e.g., | |
1016 | running Python's interactive online help utility. See | |
1017 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
2e03ee74 | 1018 | |
1dbeed45 TT |
1019 | gdb_readline_wrapper_result = NULL; |
1020 | gdb_readline_wrapper_done = 0; | |
1021 | ui->secondary_prompt_depth--; | |
1022 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
93d6eb10 | 1023 | |
1dbeed45 TT |
1024 | after_char_processing_hook = saved_after_char_processing_hook; |
1025 | saved_after_char_processing_hook = NULL; | |
2e03ee74 | 1026 | |
1dbeed45 TT |
1027 | if (m_target_is_async_orig) |
1028 | target_async (1); | |
1029 | } | |
2e03ee74 | 1030 | |
1dbeed45 | 1031 | DISABLE_COPY_AND_ASSIGN (gdb_readline_wrapper_cleanup); |
2e03ee74 | 1032 | |
1dbeed45 | 1033 | private: |
2e03ee74 | 1034 | |
95bc9f0b | 1035 | void (*m_handler_orig) (gdb::unique_xmalloc_ptr<char> &&); |
1dbeed45 | 1036 | int m_already_prompted_orig; |
93d6eb10 | 1037 | |
1dbeed45 TT |
1038 | /* Whether the target was async. */ |
1039 | int m_target_is_async_orig; | |
2e03ee74 | 1040 | |
4295e285 | 1041 | /* Processing events may change the current UI. */ |
1dbeed45 TT |
1042 | scoped_restore_tmpl<struct ui *> m_save_ui; |
1043 | }; | |
1044 | ||
1045 | char * | |
1046 | gdb_readline_wrapper (const char *prompt) | |
1047 | { | |
1048 | struct ui *ui = current_ui; | |
4295e285 | 1049 | |
1dbeed45 | 1050 | gdb_readline_wrapper_cleanup cleanup; |
93d6eb10 | 1051 | |
6e5d74e7 PA |
1052 | /* Display our prompt and prevent double prompt display. Don't pass |
1053 | down a NULL prompt, since that has special meaning for | |
1054 | display_gdb_prompt -- it indicates a request to print the primary | |
1055 | prompt, while we want a secondary prompt here. */ | |
1056 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
1057 | if (ui->command_editing) |
1058 | rl_already_prompted = 1; | |
2e03ee74 | 1059 | |
362646f5 | 1060 | if (after_char_processing_hook) |
2e03ee74 DJ |
1061 | (*after_char_processing_hook) (); |
1062 | gdb_assert (after_char_processing_hook == NULL); | |
1063 | ||
e0dd0826 | 1064 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1065 | if (gdb_readline_wrapper_done) |
1066 | break; | |
b4f5539f | 1067 | |
1dbeed45 | 1068 | return gdb_readline_wrapper_result; |
b4f5539f TT |
1069 | } |
1070 | ||
9e0b60a8 | 1071 | \f |
467d8519 TT |
1072 | /* The current saved history number from operate-and-get-next. |
1073 | This is -1 if not valid. */ | |
1074 | static int operate_saved_history = -1; | |
1075 | ||
1076 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1077 | do its work. */ | |
b9362cc7 | 1078 | static void |
5ae5f592 | 1079 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1080 | { |
1081 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1082 | |
467d8519 TT |
1083 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1084 | rl_get_previous_history (delta, 0); | |
1085 | operate_saved_history = -1; | |
1086 | ||
1087 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1088 | rl_redisplay (); |
467d8519 TT |
1089 | |
1090 | after_char_processing_hook = NULL; | |
1091 | rl_pre_input_hook = NULL; | |
1092 | } | |
1093 | ||
1094 | /* This is a gdb-local readline command handler. It accepts the | |
1095 | current command line (like RET does) and, if this command was taken | |
1096 | from the history, arranges for the next command in the history to | |
1097 | appear on the command line when the prompt returns. | |
1098 | We ignore the arguments. */ | |
1099 | static int | |
1100 | gdb_rl_operate_and_get_next (int count, int key) | |
1101 | { | |
b5686e99 MK |
1102 | int where; |
1103 | ||
362646f5 AC |
1104 | /* Use the async hook. */ |
1105 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1106 | |
b5686e99 MK |
1107 | /* Find the current line, and find the next line to use. */ |
1108 | where = where_history(); | |
1109 | ||
1fb2e2b5 PA |
1110 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1111 | || (where >= history_length - 1)) | |
b5686e99 MK |
1112 | operate_saved_history = where; |
1113 | else | |
1114 | operate_saved_history = where + 1; | |
1115 | ||
467d8519 TT |
1116 | return rl_newline (1, key); |
1117 | } | |
08b13bdd PP |
1118 | |
1119 | /* Number of user commands executed during this session. */ | |
1120 | ||
1121 | static int command_count = 0; | |
1122 | ||
1123 | /* Add the user command COMMAND to the input history list. */ | |
1124 | ||
1125 | void | |
1126 | gdb_add_history (const char *command) | |
1127 | { | |
08b13bdd | 1128 | command_count++; |
fc637f04 PP |
1129 | |
1130 | if (history_remove_duplicates != 0) | |
1131 | { | |
1132 | int lookbehind; | |
1133 | int lookbehind_threshold; | |
1134 | ||
1135 | /* The lookbehind threshold for finding a duplicate history entry is | |
1136 | bounded by command_count because we can't meaningfully delete | |
1137 | history entries that are already stored in the history file since | |
1138 | the history file is appended to. */ | |
1139 | if (history_remove_duplicates == -1 | |
1140 | || history_remove_duplicates > command_count) | |
1141 | lookbehind_threshold = command_count; | |
1142 | else | |
1143 | lookbehind_threshold = history_remove_duplicates; | |
1144 | ||
1145 | using_history (); | |
1146 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1147 | { | |
1148 | HIST_ENTRY *temp = previous_history (); | |
1149 | ||
1150 | if (temp == NULL) | |
1151 | break; | |
1152 | ||
1153 | if (strcmp (temp->line, command) == 0) | |
1154 | { | |
1155 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1156 | command_count--; | |
1157 | free_history_entry (prev); | |
1158 | break; | |
1159 | } | |
1160 | } | |
1161 | using_history (); | |
1162 | } | |
1163 | ||
1164 | add_history (command); | |
08b13bdd PP |
1165 | } |
1166 | ||
1167 | /* Safely append new history entries to the history file in a corruption-free | |
1168 | way using an intermediate local history file. */ | |
1169 | ||
1170 | static void | |
1171 | gdb_safe_append_history (void) | |
1172 | { | |
1173 | int ret, saved_errno; | |
08b13bdd | 1174 | |
8cff8730 TT |
1175 | std::string local_history_filename |
1176 | = string_printf ("%s-gdb%ld~", history_filename, (long) getpid ()); | |
08b13bdd | 1177 | |
8cff8730 | 1178 | ret = rename (history_filename, local_history_filename.c_str ()); |
08b13bdd PP |
1179 | saved_errno = errno; |
1180 | if (ret < 0 && saved_errno != ENOENT) | |
1181 | { | |
1182 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1183 | history_filename, local_history_filename.c_str (), |
08b13bdd PP |
1184 | safe_strerror (saved_errno)); |
1185 | } | |
1186 | else | |
1187 | { | |
1188 | if (ret < 0) | |
1189 | { | |
1190 | /* If the rename failed with ENOENT then either the global history | |
1191 | file never existed in the first place or another GDB process is | |
1192 | currently appending to it (and has thus temporarily renamed it). | |
1193 | Since we can't distinguish between these two cases, we have to | |
1194 | conservatively assume the first case and therefore must write out | |
1195 | (not append) our known history to our local history file and try | |
1196 | to move it back anyway. Otherwise a global history file would | |
1197 | never get created! */ | |
1198 | gdb_assert (saved_errno == ENOENT); | |
8cff8730 | 1199 | write_history (local_history_filename.c_str ()); |
08b13bdd PP |
1200 | } |
1201 | else | |
1202 | { | |
8cff8730 | 1203 | append_history (command_count, local_history_filename.c_str ()); |
2093d2d3 | 1204 | if (history_is_stifled ()) |
8cff8730 TT |
1205 | history_truncate_file (local_history_filename.c_str (), |
1206 | history_max_entries); | |
08b13bdd PP |
1207 | } |
1208 | ||
8cff8730 | 1209 | ret = rename (local_history_filename.c_str (), history_filename); |
08b13bdd PP |
1210 | saved_errno = errno; |
1211 | if (ret < 0 && saved_errno != EEXIST) | |
1212 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1213 | local_history_filename.c_str (), history_filename, |
08b13bdd PP |
1214 | safe_strerror (saved_errno)); |
1215 | } | |
08b13bdd PP |
1216 | } |
1217 | ||
b69d38af PA |
1218 | /* Read one line from the command input stream `instream' into a local |
1219 | static buffer. The buffer is made bigger as necessary. Returns | |
1220 | the address of the start of the line. | |
9e0b60a8 | 1221 | |
d318976c | 1222 | NULL is returned for end of file. |
9e0b60a8 | 1223 | |
b69d38af PA |
1224 | This routine either uses fancy command line editing or simple input |
1225 | as the user has requested. */ | |
10689f25 | 1226 | |
992a7040 | 1227 | const char * |
89fbedf3 | 1228 | command_line_input (const char *prompt_arg, const char *annotation_suffix) |
9e0b60a8 | 1229 | { |
b69d38af PA |
1230 | static struct buffer cmd_line_buffer; |
1231 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1232 | struct ui *ui = current_ui; |
38bcc89d | 1233 | const char *prompt = prompt_arg; |
b69d38af | 1234 | char *cmd; |
268a799a | 1235 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1236 | |
1237 | /* The annotation suffix must be non-NULL. */ | |
1238 | if (annotation_suffix == NULL) | |
1239 | annotation_suffix = ""; | |
9e0b60a8 | 1240 | |
268a799a | 1241 | if (from_tty && annotation_level > 1) |
d318976c | 1242 | { |
38bcc89d SM |
1243 | char *local_prompt; |
1244 | ||
224c3ddb SM |
1245 | local_prompt |
1246 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1247 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1248 | if (prompt == NULL) |
d318976c FN |
1249 | local_prompt[0] = '\0'; |
1250 | else | |
38bcc89d | 1251 | strcpy (local_prompt, prompt); |
d318976c FN |
1252 | strcat (local_prompt, "\n\032\032"); |
1253 | strcat (local_prompt, annotation_suffix); | |
1254 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1255 | |
1256 | prompt = local_prompt; | |
d318976c | 1257 | } |
9e0b60a8 | 1258 | |
b69d38af | 1259 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1260 | { |
b69d38af PA |
1261 | buffer_init (&cmd_line_buffer); |
1262 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1263 | } |
9e0b60a8 | 1264 | |
b69d38af PA |
1265 | /* Starting a new command line. */ |
1266 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1267 | |
6aa899ce | 1268 | #ifdef SIGTSTP |
d318976c | 1269 | if (job_control) |
6aa899ce | 1270 | signal (SIGTSTP, handle_sigtstp); |
d318976c FN |
1271 | #endif |
1272 | ||
1273 | while (1) | |
9e0b60a8 | 1274 | { |
2139e8dc | 1275 | gdb::unique_xmalloc_ptr<char> rl; |
b69d38af | 1276 | |
371d5dec MS |
1277 | /* Make sure that all output has been output. Some machines may |
1278 | let you get away with leaving out some of the gdb_flush, but | |
1279 | not all. */ | |
d318976c FN |
1280 | wrap_here (""); |
1281 | gdb_flush (gdb_stdout); | |
1282 | gdb_flush (gdb_stderr); | |
1283 | ||
6caa91b6 | 1284 | if (!source_file_name.empty ()) |
637537d0 | 1285 | ++source_line_number; |
d318976c | 1286 | |
268a799a | 1287 | if (from_tty && annotation_level > 1) |
d318976c | 1288 | { |
306d9ac5 DC |
1289 | puts_unfiltered ("\n\032\032pre-"); |
1290 | puts_unfiltered (annotation_suffix); | |
1291 | puts_unfiltered ("\n"); | |
d318976c FN |
1292 | } |
1293 | ||
1294 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1295 | if (deprecated_readline_hook |
1296 | && from_tty | |
1297 | && input_interactive_p (current_ui)) | |
d318976c | 1298 | { |
2139e8dc | 1299 | rl.reset ((*deprecated_readline_hook) (prompt)); |
d318976c | 1300 | } |
268a799a PA |
1301 | else if (command_editing_p |
1302 | && from_tty | |
1303 | && input_interactive_p (current_ui)) | |
d318976c | 1304 | { |
2139e8dc | 1305 | rl.reset (gdb_readline_wrapper (prompt)); |
d318976c | 1306 | } |
9e0b60a8 | 1307 | else |
d318976c | 1308 | { |
2139e8dc | 1309 | rl.reset (gdb_readline_no_editing (prompt)); |
d318976c | 1310 | } |
9e0b60a8 | 1311 | |
2139e8dc | 1312 | cmd = handle_line_of_input (&cmd_line_buffer, rl.get (), |
89fbedf3 | 1313 | 0, annotation_suffix); |
b69d38af | 1314 | if (cmd == (char *) EOF) |
d318976c | 1315 | { |
b69d38af | 1316 | cmd = NULL; |
d318976c | 1317 | break; |
9e0b60a8 | 1318 | } |
b69d38af | 1319 | if (cmd != NULL) |
d318976c | 1320 | break; |
9e0b60a8 | 1321 | |
6e5d74e7 PA |
1322 | /* Got partial input. I.e., got a line that ends with a |
1323 | continuation character (backslash). Suppress printing the | |
1324 | prompt again. */ | |
38bcc89d | 1325 | prompt = NULL; |
d318976c | 1326 | } |
9e0b60a8 | 1327 | |
6aa899ce | 1328 | #ifdef SIGTSTP |
d318976c | 1329 | if (job_control) |
6aa899ce | 1330 | signal (SIGTSTP, SIG_DFL); |
d318976c | 1331 | #endif |
9e0b60a8 | 1332 | |
b69d38af | 1333 | return cmd; |
9e0b60a8 JM |
1334 | } |
1335 | \f | |
c61b06a1 | 1336 | /* See top.h. */ |
9e0b60a8 | 1337 | void |
c61b06a1 | 1338 | print_gdb_version (struct ui_file *stream, bool interactive) |
9e0b60a8 JM |
1339 | { |
1340 | /* From GNU coding standards, first line is meant to be easy for a | |
1341 | program to parse, and is just canonical program name and version | |
371d5dec | 1342 | number, which starts after last space. */ |
9e0b60a8 | 1343 | |
d47032b7 TT |
1344 | ui_file_style style; |
1345 | if (interactive) | |
1346 | { | |
1347 | ui_file_style nstyle = { ui_file_style::MAGENTA, ui_file_style::NONE, | |
1348 | ui_file_style::BOLD }; | |
1349 | style = nstyle; | |
1350 | } | |
1351 | fprintf_styled (stream, style, "GNU gdb %s%s\n", PKGVERSION, version); | |
9e0b60a8 | 1352 | |
371d5dec | 1353 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1354 | |
3e43a32a | 1355 | fprintf_filtered (stream, |
66d91b39 | 1356 | "Copyright (C) 2019 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1357 | |
1358 | /* Following the copyright is a brief statement that the program is | |
1359 | free software, that users are free to copy and change it on | |
1360 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1361 | there is no warranty. */ |
9e0b60a8 JM |
1362 | |
1363 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1364 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1365 | \nThis is free software: you are free to change and redistribute it.\n\ | |
c61b06a1 TT |
1366 | There is NO WARRANTY, to the extent permitted by law."); |
1367 | ||
1368 | if (!interactive) | |
1369 | return; | |
1370 | ||
1371 | fprintf_filtered (stream, ("\nType \"show copying\" and " | |
1372 | "\"show warranty\" for details.\n")); | |
9e0b60a8 | 1373 | |
371d5dec | 1374 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1375 | |
1376 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1377 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1378 | { |
3e43a32a MS |
1379 | fprintf_filtered (stream, "--host=%s --target=%s", |
1380 | host_name, target_name); | |
9e0b60a8 JM |
1381 | } |
1382 | else | |
1383 | { | |
1384 | fprintf_filtered (stream, "%s", host_name); | |
1385 | } | |
c61b06a1 TT |
1386 | fprintf_filtered (stream, "\".\n"); |
1387 | ||
1388 | fprintf_filtered (stream, _("Type \"show configuration\" " | |
1389 | "for configuration details.\n")); | |
c16158bc JM |
1390 | |
1391 | if (REPORT_BUGS_TO[0]) | |
1392 | { | |
6eaaf48b | 1393 | fprintf_filtered (stream, |
c61b06a1 | 1394 | _("For bug reporting instructions, please see:\n")); |
1cf55f60 | 1395 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1396 | } |
1cf55f60 PM |
1397 | fprintf_filtered (stream, |
1398 | _("Find the GDB manual and other documentation \ | |
c61b06a1 TT |
1399 | resources online at:\n <http://www.gnu.org/software/gdb/documentation/>.")); |
1400 | fprintf_filtered (stream, "\n\n"); | |
1cf55f60 | 1401 | fprintf_filtered (stream, _("For help, type \"help\".\n")); |
7734102d EZ |
1402 | fprintf_filtered (stream, |
1403 | _("Type \"apropos word\" to search for commands \ | |
1404 | related to \"word\".")); | |
9e0b60a8 | 1405 | } |
6eaaf48b EZ |
1406 | |
1407 | /* Print the details of GDB build-time configuration. */ | |
1408 | void | |
1409 | print_gdb_configuration (struct ui_file *stream) | |
1410 | { | |
1411 | fprintf_filtered (stream, _("\ | |
1412 | This GDB was configured as follows:\n\ | |
1413 | configure --host=%s --target=%s\n\ | |
1414 | "), host_name, target_name); | |
1415 | fprintf_filtered (stream, _("\ | |
1416 | --with-auto-load-dir=%s\n\ | |
1417 | --with-auto-load-safe-path=%s\n\ | |
1418 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1419 | #if HAVE_LIBEXPAT | |
1420 | fprintf_filtered (stream, _("\ | |
1421 | --with-expat\n\ | |
1422 | ")); | |
1423 | #else | |
1424 | fprintf_filtered (stream, _("\ | |
1425 | --without-expat\n\ | |
1426 | ")); | |
1427 | #endif | |
1428 | if (GDB_DATADIR[0]) | |
1429 | fprintf_filtered (stream, _("\ | |
1430 | --with-gdb-datadir=%s%s\n\ | |
1431 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1432 | #ifdef ICONV_BIN | |
1433 | fprintf_filtered (stream, _("\ | |
1434 | --with-iconv-bin=%s%s\n\ | |
1435 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1436 | #endif | |
1437 | if (JIT_READER_DIR[0]) | |
1438 | fprintf_filtered (stream, _("\ | |
1439 | --with-jit-reader-dir=%s%s\n\ | |
1440 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1441 | #if HAVE_LIBUNWIND_IA64_H | |
1442 | fprintf_filtered (stream, _("\ | |
1443 | --with-libunwind-ia64\n\ | |
1444 | ")); | |
1445 | #else | |
1446 | fprintf_filtered (stream, _("\ | |
1447 | --without-libunwind-ia64\n\ | |
1448 | ")); | |
1449 | #endif | |
1450 | #if HAVE_LIBLZMA | |
1451 | fprintf_filtered (stream, _("\ | |
1452 | --with-lzma\n\ | |
1453 | ")); | |
1454 | #else | |
1455 | fprintf_filtered (stream, _("\ | |
1456 | --without-lzma\n\ | |
1457 | ")); | |
1458 | #endif | |
9bd8e0b0 EZ |
1459 | #if HAVE_LIBBABELTRACE |
1460 | fprintf_filtered (stream, _("\ | |
1461 | --with-babeltrace\n\ | |
1462 | ")); | |
1463 | #else | |
1464 | fprintf_filtered (stream, _("\ | |
1465 | --without-babeltrace\n\ | |
1466 | ")); | |
1467 | #endif | |
1468 | #if HAVE_LIBIPT | |
1469 | fprintf_filtered (stream, _("\ | |
1470 | --with-intel-pt\n\ | |
1471 | ")); | |
1472 | #else | |
1473 | fprintf_filtered (stream, _("\ | |
1474 | --without-intel-pt\n\ | |
1475 | ")); | |
1476 | #endif | |
9bd8e0b0 EZ |
1477 | #if HAVE_LIBMPFR |
1478 | fprintf_filtered (stream, _("\ | |
1479 | --with-mpfr\n\ | |
1480 | ")); | |
1481 | #else | |
1482 | fprintf_filtered (stream, _("\ | |
1483 | --without-mpfr\n\ | |
1484 | ")); | |
1485 | #endif | |
6eaaf48b EZ |
1486 | #ifdef WITH_PYTHON_PATH |
1487 | fprintf_filtered (stream, _("\ | |
1488 | --with-python=%s%s\n\ | |
1489 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
50c7c5b8 ДП |
1490 | #else |
1491 | fprintf_filtered (stream, _("\ | |
1492 | --without-python\n\ | |
1493 | ")); | |
6eaaf48b | 1494 | #endif |
97d66cc6 EZ |
1495 | #if HAVE_GUILE |
1496 | fprintf_filtered (stream, _("\ | |
1497 | --with-guile\n\ | |
1498 | ")); | |
1499 | #else | |
1500 | fprintf_filtered (stream, _("\ | |
1501 | --without-guile\n\ | |
1502 | ")); | |
1503 | #endif | |
189b8c2e ST |
1504 | #if HAVE_SOURCE_HIGHLIGHT |
1505 | fprintf_filtered (stream, _("\ | |
1506 | --enable-source-highlight\n\ | |
1507 | ")); | |
1508 | #else | |
1509 | fprintf_filtered (stream, _("\ | |
1510 | --disable-source-highlight\n\ | |
1511 | ")); | |
1512 | #endif | |
6eaaf48b EZ |
1513 | #ifdef RELOC_SRCDIR |
1514 | fprintf_filtered (stream, _("\ | |
1515 | --with-relocated-sources=%s\n\ | |
1516 | "), RELOC_SRCDIR); | |
1517 | #endif | |
1518 | if (DEBUGDIR[0]) | |
1519 | fprintf_filtered (stream, _("\ | |
1520 | --with-separate-debug-dir=%s%s\n\ | |
1521 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1522 | if (TARGET_SYSTEM_ROOT[0]) | |
1523 | fprintf_filtered (stream, _("\ | |
1524 | --with-sysroot=%s%s\n\ | |
1525 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1526 | if (SYSTEM_GDBINIT[0]) | |
1527 | fprintf_filtered (stream, _("\ | |
1528 | --with-system-gdbinit=%s%s\n\ | |
1529 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
ed2a2229 CB |
1530 | if (SYSTEM_GDBINIT_DIR[0]) |
1531 | fprintf_filtered (stream, _("\ | |
1532 | --with-system-gdbinit-dir=%s%s\n\ | |
1533 | "), SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
48d1d6f5 EZ |
1534 | /* We assume "relocatable" will be printed at least once, thus we always |
1535 | print this text. It's a reasonably safe assumption for now. */ | |
1536 | fprintf_filtered (stream, _("\n\ | |
1537 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1538 | tree, and GDB will still find it.)\n\ | |
1539 | ")); | |
6eaaf48b | 1540 | } |
9e0b60a8 | 1541 | \f |
95298e72 | 1542 | |
ab821bc6 PA |
1543 | /* The current top level prompt, settable with "set prompt", and/or |
1544 | with the python `gdb.prompt_hook' hook. */ | |
1545 | static char *top_prompt; | |
9e0b60a8 | 1546 | |
ab821bc6 | 1547 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1548 | |
1549 | char * | |
ab821bc6 | 1550 | get_prompt (void) |
95298e72 | 1551 | { |
ab821bc6 | 1552 | return top_prompt; |
95298e72 PM |
1553 | } |
1554 | ||
ab821bc6 | 1555 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1556 | |
1557 | void | |
ab821bc6 | 1558 | set_prompt (const char *s) |
95298e72 | 1559 | { |
ab821bc6 | 1560 | char *p = xstrdup (s); |
95298e72 | 1561 | |
ab821bc6 PA |
1562 | xfree (top_prompt); |
1563 | top_prompt = p; | |
9e0b60a8 | 1564 | } |
9e0b60a8 | 1565 | \f |
c5aa993b | 1566 | |
b0abbc58 | 1567 | struct qt_args |
9e0b60a8 | 1568 | { |
b0abbc58 JJ |
1569 | int from_tty; |
1570 | }; | |
9e0b60a8 | 1571 | |
54a012c9 PA |
1572 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1573 | inferior, depending on how we originally gained control of it. */ | |
1574 | ||
1575 | static int | |
1576 | kill_or_detach (struct inferior *inf, void *args) | |
1577 | { | |
19ba03f4 | 1578 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 | 1579 | |
6c95b8df PA |
1580 | if (inf->pid == 0) |
1581 | return 0; | |
1582 | ||
00431a78 | 1583 | thread_info *thread = any_thread_of_inferior (inf); |
b8fa0bfa | 1584 | if (thread != NULL) |
9e0b60a8 | 1585 | { |
00431a78 | 1586 | switch_to_thread (thread); |
c35b1492 PA |
1587 | |
1588 | /* Leave core files alone. */ | |
1589 | if (target_has_execution) | |
1590 | { | |
1591 | if (inf->attach_flag) | |
6e1e1966 | 1592 | target_detach (inf, qt->from_tty); |
c35b1492 PA |
1593 | else |
1594 | target_kill (); | |
1595 | } | |
9e0b60a8 JM |
1596 | } |
1597 | ||
54a012c9 PA |
1598 | return 0; |
1599 | } | |
1600 | ||
b8fa0bfa PA |
1601 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1602 | will do to each inferior on a "quit". ARG points to a struct | |
1603 | ui_out where output is to be collected. */ | |
1604 | ||
1605 | static int | |
1606 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1607 | { | |
19ba03f4 | 1608 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1609 | |
6c95b8df PA |
1610 | if (inf->pid == 0) |
1611 | return 0; | |
1612 | ||
b8fa0bfa PA |
1613 | if (inf->attach_flag) |
1614 | fprintf_filtered (stb, | |
1615 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
a068643d | 1616 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1617 | else |
1618 | fprintf_filtered (stb, | |
1619 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
a068643d | 1620 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1621 | |
1622 | return 0; | |
1623 | } | |
1624 | ||
1625 | /* If necessary, make the user confirm that we should quit. Return | |
1626 | non-zero if we should quit, zero if we shouldn't. */ | |
1627 | ||
1628 | int | |
1629 | quit_confirm (void) | |
1630 | { | |
b8fa0bfa PA |
1631 | /* Don't even ask if we're only debugging a core file inferior. */ |
1632 | if (!have_live_inferiors ()) | |
1633 | return 1; | |
1634 | ||
1635 | /* Build the query string as a single string. */ | |
d7e74731 | 1636 | string_file stb; |
b8fa0bfa | 1637 | |
d7e74731 PA |
1638 | stb.puts (_("A debugging session is active.\n\n")); |
1639 | iterate_over_inferiors (print_inferior_quit_action, &stb); | |
1640 | stb.puts (_("\nQuit anyway? ")); | |
7b01d34b | 1641 | |
d7e74731 | 1642 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1643 | } |
1644 | ||
18206ca3 PP |
1645 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1646 | terminal so that we leave the terminal in the state we acquired it. */ | |
1647 | ||
1648 | static void | |
1649 | undo_terminal_modifications_before_exit (void) | |
1650 | { | |
3c216924 PA |
1651 | struct ui *saved_top_level = current_ui; |
1652 | ||
223ffa71 | 1653 | target_terminal::ours (); |
3c216924 PA |
1654 | |
1655 | current_ui = main_ui; | |
1656 | ||
18206ca3 PP |
1657 | #if defined(TUI) |
1658 | tui_disable (); | |
1659 | #endif | |
3c216924 PA |
1660 | gdb_disable_readline (); |
1661 | ||
1662 | current_ui = saved_top_level; | |
18206ca3 PP |
1663 | } |
1664 | ||
1665 | ||
b0abbc58 JJ |
1666 | /* Quit without asking for confirmation. */ |
1667 | ||
1668 | void | |
36cf1806 | 1669 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1670 | { |
1671 | int exit_code = 0; | |
365c70b1 | 1672 | struct qt_args qt; |
b0abbc58 | 1673 | |
18206ca3 PP |
1674 | undo_terminal_modifications_before_exit (); |
1675 | ||
7734102d | 1676 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1677 | value of that expression. */ |
36cf1806 TT |
1678 | if (exit_arg) |
1679 | exit_code = *exit_arg; | |
4b0ad762 AS |
1680 | else if (return_child_result) |
1681 | exit_code = return_child_result_value; | |
b0abbc58 | 1682 | |
365c70b1 JJ |
1683 | qt.from_tty = from_tty; |
1684 | ||
b0abbc58 | 1685 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1686 | |
1687 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
a70b8144 | 1688 | try |
2f9d54cf PA |
1689 | { |
1690 | disconnect_tracing (); | |
1691 | iterate_over_inferiors (kill_or_detach, &qt); | |
1692 | } | |
230d2906 | 1693 | catch (const gdb_exception &ex) |
492d29ea PA |
1694 | { |
1695 | exception_print (gdb_stderr, ex); | |
1696 | } | |
2f9d54cf PA |
1697 | |
1698 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1699 | them all out. */ | |
a70b8144 | 1700 | try |
2f9d54cf PA |
1701 | { |
1702 | pop_all_targets (); | |
1703 | } | |
230d2906 | 1704 | catch (const gdb_exception &ex) |
492d29ea PA |
1705 | { |
1706 | exception_print (gdb_stderr, ex); | |
1707 | } | |
2f9d54cf PA |
1708 | |
1709 | /* Save the history information if it is appropriate to do so. */ | |
a70b8144 | 1710 | try |
2f9d54cf | 1711 | { |
268a799a PA |
1712 | if (write_history_p && history_filename) |
1713 | { | |
1714 | struct ui *ui; | |
1715 | int save = 0; | |
1716 | ||
1717 | /* History is currently shared between all UIs. If there's | |
1718 | any UI with a terminal, save history. */ | |
1719 | ALL_UIS (ui) | |
1720 | { | |
1721 | if (input_interactive_p (ui)) | |
1722 | { | |
1723 | save = 1; | |
1724 | break; | |
1725 | } | |
1726 | } | |
1727 | ||
1728 | if (save) | |
1729 | gdb_safe_append_history (); | |
1730 | } | |
2f9d54cf | 1731 | } |
230d2906 | 1732 | catch (const gdb_exception &ex) |
492d29ea PA |
1733 | { |
1734 | exception_print (gdb_stderr, ex); | |
1735 | } | |
2f9d54cf | 1736 | |
9d1447e0 SDJ |
1737 | /* Destroy any values currently allocated now instead of leaving it |
1738 | to global destructors, because that may be too late. For | |
1739 | example, the destructors of xmethod values call into the Python | |
1740 | runtime, which is finalized via a final cleanup. */ | |
1741 | finalize_values (); | |
1742 | ||
2f9d54cf | 1743 | /* Do any final cleanups before exiting. */ |
a70b8144 | 1744 | try |
2f9d54cf | 1745 | { |
fe7b42e5 | 1746 | do_final_cleanups (); |
2f9d54cf | 1747 | } |
230d2906 | 1748 | catch (const gdb_exception &ex) |
492d29ea PA |
1749 | { |
1750 | exception_print (gdb_stderr, ex); | |
1751 | } | |
b0abbc58 | 1752 | |
9e0b60a8 JM |
1753 | exit (exit_code); |
1754 | } | |
1755 | ||
268a799a PA |
1756 | /* The value of the "interactive-mode" setting. */ |
1757 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1758 | |
268a799a PA |
1759 | /* Implement the "show interactive-mode" option. */ |
1760 | ||
1761 | static void | |
1762 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1763 | struct cmd_list_element *c, | |
1764 | const char *value) | |
9e0b60a8 | 1765 | { |
268a799a PA |
1766 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1767 | fprintf_filtered (file, "Debugger's interactive mode " | |
1768 | "is %s (currently %s).\n", | |
d9de1fe3 | 1769 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1770 | else |
1771 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1772 | } | |
1773 | ||
1774 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1775 | |
268a799a PA |
1776 | int |
1777 | input_interactive_p (struct ui *ui) | |
1778 | { | |
c63a1f86 JK |
1779 | if (batch_flag) |
1780 | return 0; | |
1781 | ||
268a799a PA |
1782 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1783 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1784 | |
268a799a | 1785 | return ui->input_interactive_p; |
9e0b60a8 JM |
1786 | } |
1787 | \f | |
9e0b60a8 | 1788 | static void |
0b39b52e | 1789 | dont_repeat_command (const char *ignored, int from_tty) |
9e0b60a8 | 1790 | { |
dc7eb48e PA |
1791 | /* Can't call dont_repeat here because we're not necessarily reading |
1792 | from stdin. */ | |
1793 | *saved_command_line = 0; | |
9e0b60a8 JM |
1794 | } |
1795 | \f | |
1796 | /* Functions to manipulate command line editing control variables. */ | |
1797 | ||
1798 | /* Number of commands to print in each call to show_commands. */ | |
1799 | #define Hist_print 10 | |
d318976c | 1800 | void |
85c4be7c | 1801 | show_commands (const char *args, int from_tty) |
9e0b60a8 JM |
1802 | { |
1803 | /* Index for history commands. Relative to history_base. */ | |
1804 | int offset; | |
1805 | ||
1806 | /* Number of the history entry which we are planning to display next. | |
1807 | Relative to history_base. */ | |
1808 | static int num = 0; | |
1809 | ||
9e0b60a8 | 1810 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1811 | |
1812 | if (args) | |
1813 | { | |
1814 | if (args[0] == '+' && args[1] == '\0') | |
1815 | /* "info editing +" should print from the stored position. */ | |
1816 | ; | |
1817 | else | |
1818 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1819 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1820 | } |
1821 | /* "show commands" means print the last Hist_print commands. */ | |
1822 | else | |
1823 | { | |
840a9a1f | 1824 | num = history_length - Hist_print; |
9e0b60a8 JM |
1825 | } |
1826 | ||
1827 | if (num < 0) | |
1828 | num = 0; | |
1829 | ||
1830 | /* If there are at least Hist_print commands, we want to display the last | |
1831 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1832 | if (history_length - num < Hist_print) |
9e0b60a8 | 1833 | { |
840a9a1f | 1834 | num = history_length - Hist_print; |
9e0b60a8 JM |
1835 | if (num < 0) |
1836 | num = 0; | |
1837 | } | |
1838 | ||
840a9a1f PA |
1839 | for (offset = num; |
1840 | offset < num + Hist_print && offset < history_length; | |
1841 | offset++) | |
9e0b60a8 JM |
1842 | { |
1843 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1844 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1845 | } |
1846 | ||
1847 | /* The next command we want to display is the next one that we haven't | |
1848 | displayed yet. */ | |
1849 | num += Hist_print; | |
1850 | ||
1851 | /* If the user repeats this command with return, it should do what | |
1852 | "show commands +" does. This is unnecessary if arg is null, | |
1853 | because "show commands +" is not useful after "show commands". */ | |
1854 | if (from_tty && args) | |
85c4be7c | 1855 | set_repeat_arguments ("+"); |
9e0b60a8 JM |
1856 | } |
1857 | ||
ebfd00d2 | 1858 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1859 | |
ebfd00d2 | 1860 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1861 | |
ebfd00d2 PP |
1862 | static void |
1863 | set_readline_history_size (int history_size) | |
1864 | { | |
1865 | gdb_assert (history_size >= -1); | |
840a9a1f | 1866 | |
ebfd00d2 | 1867 | if (history_size == -1) |
840a9a1f | 1868 | unstifle_history (); |
883b9c6c | 1869 | else |
ebfd00d2 PP |
1870 | stifle_history (history_size); |
1871 | } | |
1872 | ||
1873 | /* Called by do_setshow_command. */ | |
1874 | static void | |
eb4c3f4a TT |
1875 | set_history_size_command (const char *args, |
1876 | int from_tty, struct cmd_list_element *c) | |
ebfd00d2 PP |
1877 | { |
1878 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1879 | } |
1880 | ||
d318976c | 1881 | void |
981a3fb3 | 1882 | set_history (const char *args, int from_tty) |
9e0b60a8 | 1883 | { |
3e43a32a MS |
1884 | printf_unfiltered (_("\"set history\" must be followed " |
1885 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1886 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1887 | } |
1888 | ||
d318976c | 1889 | void |
981a3fb3 | 1890 | show_history (const char *args, int from_tty) |
9e0b60a8 JM |
1891 | { |
1892 | cmd_show_list (showhistlist, from_tty, ""); | |
1893 | } | |
1894 | ||
491144b5 | 1895 | bool info_verbose = false; /* Default verbose msgs off. */ |
9e0b60a8 | 1896 | |
94f2c730 | 1897 | /* Called by do_set_command. An elaborate joke. */ |
d318976c | 1898 | void |
eb4c3f4a | 1899 | set_verbose (const char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1900 | { |
6f937416 | 1901 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1902 | struct cmd_list_element *showcmd; |
1903 | ||
1904 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1905 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 | 1906 | |
94f2c730 PW |
1907 | if (c->doc && c->doc_allocated) |
1908 | xfree ((char *) c->doc); | |
1909 | if (showcmd->doc && showcmd->doc_allocated) | |
1910 | xfree ((char *) showcmd->doc); | |
9e0b60a8 JM |
1911 | if (info_verbose) |
1912 | { | |
94f2c730 PW |
1913 | c->doc = _("Set verbose printing of informational messages."); |
1914 | showcmd->doc = _("Show verbose printing of informational messages."); | |
9e0b60a8 JM |
1915 | } |
1916 | else | |
1917 | { | |
94f2c730 PW |
1918 | c->doc = _("Set verbosity."); |
1919 | showcmd->doc = _("Show verbosity."); | |
9e0b60a8 | 1920 | } |
94f2c730 PW |
1921 | c->doc_allocated = 0; |
1922 | showcmd->doc_allocated = 0; | |
9e0b60a8 JM |
1923 | } |
1924 | ||
9e0b60a8 | 1925 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1926 | have been read so that the user can change the history file via his |
1927 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1928 | overrides all of this. */ | |
9e0b60a8 JM |
1929 | |
1930 | void | |
fba45db2 | 1931 | init_history (void) |
9e0b60a8 | 1932 | { |
b5a9bfbe | 1933 | const char *tmpenv; |
9e0b60a8 | 1934 | |
b58c513b | 1935 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1936 | if (tmpenv) |
840a9a1f | 1937 | { |
bc460514 | 1938 | long var; |
0fc26caf | 1939 | int saved_errno; |
bc460514 PP |
1940 | char *endptr; |
1941 | ||
1942 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1943 | errno = 0; |
bc460514 | 1944 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1945 | saved_errno = errno; |
bc460514 PP |
1946 | endptr = skip_spaces (endptr); |
1947 | ||
1948 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1949 | empty string, a negative number or a huge positive number (larger than | |
1950 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1951 | history size to the number we have read. This behavior is consistent | |
1952 | with how bash handles HISTSIZE. */ | |
1953 | if (*endptr != '\0') | |
1954 | ; | |
1955 | else if (*tmpenv == '\0' | |
1956 | || var < 0 | |
0fc26caf PP |
1957 | || var > INT_MAX |
1958 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1959 | errno after calling strtol to distinguish between a value that | |
1960 | is exactly INT_MAX and an overflowing value that was clamped | |
1961 | to INT_MAX. */ | |
1962 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1963 | history_size_setshow_var = -1; |
1964 | else | |
1965 | history_size_setshow_var = var; | |
840a9a1f | 1966 | } |
bc460514 PP |
1967 | |
1968 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1969 | default. */ | |
1970 | if (history_size_setshow_var == -2) | |
840a9a1f | 1971 | history_size_setshow_var = 256; |
9e0b60a8 | 1972 | |
ebfd00d2 | 1973 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1974 | |
1975 | tmpenv = getenv ("GDBHISTFILE"); | |
1976 | if (tmpenv) | |
1b36a34b | 1977 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1978 | else if (!history_filename) |
1979 | { | |
1980 | /* We include the current directory so that if the user changes | |
1981 | directories the file written will be the same as the one | |
1982 | that was read. */ | |
a0b3c4fd | 1983 | #ifdef __MSDOS__ |
eb2f494a | 1984 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1985 | history_filename = concat (current_directory, "/_gdb_history", |
1986 | (char *)NULL); | |
a0b3c4fd | 1987 | #else |
1754f103 MK |
1988 | history_filename = concat (current_directory, "/.gdb_history", |
1989 | (char *)NULL); | |
a0b3c4fd | 1990 | #endif |
c5aa993b | 1991 | } |
9e0b60a8 JM |
1992 | read_history (history_filename); |
1993 | } | |
1994 | ||
920d2a44 | 1995 | static void |
ab821bc6 PA |
1996 | show_prompt (struct ui_file *file, int from_tty, |
1997 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1998 | { |
1999 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
2000 | } | |
2001 | ||
3c216924 PA |
2002 | /* "set editing" command. */ |
2003 | ||
2004 | static void | |
eb4c3f4a | 2005 | set_editing (const char *args, int from_tty, struct cmd_list_element *c) |
3c216924 PA |
2006 | { |
2007 | change_line_handler (set_editing_cmd_var); | |
2008 | /* Update the control variable so that MI's =cmd-param-changed event | |
2009 | shows the correct value. */ | |
2010 | set_editing_cmd_var = current_ui->command_editing; | |
2011 | } | |
2012 | ||
920d2a44 | 2013 | static void |
3c216924 PA |
2014 | show_editing (struct ui_file *file, int from_tty, |
2015 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 2016 | { |
3e43a32a MS |
2017 | fprintf_filtered (file, _("Editing of command lines as " |
2018 | "they are typed is %s.\n"), | |
3c216924 | 2019 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
2020 | } |
2021 | ||
2022 | static void | |
2023 | show_annotation_level (struct ui_file *file, int from_tty, | |
2024 | struct cmd_list_element *c, const char *value) | |
2025 | { | |
2026 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
2027 | } | |
2028 | ||
2029 | static void | |
2030 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
2031 | struct cmd_list_element *c, const char *value) | |
2032 | { | |
3e43a32a MS |
2033 | fprintf_filtered (file, _("Notification of completion for " |
2034 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
2035 | value); |
2036 | } | |
6dea1fbd | 2037 | |
8d551b02 DE |
2038 | /* New values of the "data-directory" parameter are staged here. */ |
2039 | static char *staged_gdb_datadir; | |
2040 | ||
6dea1fbd JK |
2041 | /* "set" command for the gdb_datadir configuration variable. */ |
2042 | ||
2043 | static void | |
eb4c3f4a | 2044 | set_gdb_datadir (const char *args, int from_tty, struct cmd_list_element *c) |
6dea1fbd | 2045 | { |
8d551b02 | 2046 | set_gdb_data_directory (staged_gdb_datadir); |
76727919 | 2047 | gdb::observers::gdb_datadir_changed.notify (); |
6dea1fbd JK |
2048 | } |
2049 | ||
8d551b02 DE |
2050 | /* "show" command for the gdb_datadir configuration variable. */ |
2051 | ||
2052 | static void | |
2053 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
2054 | struct cmd_list_element *c, const char *value) | |
2055 | { | |
2056 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
f2aec7f6 | 2057 | gdb_datadir.c_str ()); |
8d551b02 DE |
2058 | } |
2059 | ||
97c85fc6 | 2060 | static void |
eb4c3f4a TT |
2061 | set_history_filename (const char *args, |
2062 | int from_tty, struct cmd_list_element *c) | |
97c85fc6 MB |
2063 | { |
2064 | /* We include the current directory so that if the user changes | |
2065 | directories the file written will be the same as the one | |
2066 | that was read. */ | |
2067 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
2068 | history_filename = reconcat (history_filename, current_directory, "/", | |
2069 | history_filename, (char *) NULL); | |
2070 | } | |
2071 | ||
7734102d EZ |
2072 | static void |
2073 | init_gdb_version_vars (void) | |
2074 | { | |
2075 | struct internalvar *major_version_var = create_internalvar ("_gdb_major"); | |
2076 | struct internalvar *minor_version_var = create_internalvar ("_gdb_minor"); | |
2077 | int vmajor = 0, vminor = 0, vrevision = 0; | |
2078 | sscanf (version, "%d.%d.%d", &vmajor, &vminor, &vrevision); | |
2079 | set_internalvar_integer (major_version_var, vmajor); | |
2080 | set_internalvar_integer (minor_version_var, vminor + (vrevision > 0)); | |
2081 | } | |
2082 | ||
9e0b60a8 | 2083 | static void |
fba45db2 | 2084 | init_main (void) |
9e0b60a8 | 2085 | { |
60eb5395 PA |
2086 | struct cmd_list_element *c; |
2087 | ||
ab821bc6 PA |
2088 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
2089 | the DEFAULT_PROMPT is. */ | |
2090 | set_prompt (DEFAULT_PROMPT); | |
2091 | ||
9e0b60a8 JM |
2092 | /* Set the important stuff up for command editing. */ |
2093 | command_editing_p = 1; | |
9e0b60a8 | 2094 | history_expansion_p = 0; |
452a569e | 2095 | write_history_p = 0; |
9e0b60a8 JM |
2096 | |
2097 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2098 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 2099 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 2100 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 2101 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2102 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2103 | rl_readline_name = "gdb"; |
7cb3ec5e | 2104 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2105 | |
467d8519 TT |
2106 | /* The name for this defun comes from Bash, where it originated. |
2107 | 15 is Control-o, the same binding this function has in Bash. */ | |
2108 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2109 | ||
4d28ad1e | 2110 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2111 | &top_prompt, |
590042fc PW |
2112 | _("Set gdb's prompt."), |
2113 | _("Show gdb's prompt."), | |
ab821bc6 PA |
2114 | NULL, NULL, |
2115 | show_prompt, | |
4d28ad1e | 2116 | &setlist, &showlist); |
9e0b60a8 | 2117 | |
1bedd215 | 2118 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2119 | Don't repeat this command.\nPrimarily \ |
2120 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2121 | hitting return.")); |
9e0b60a8 | 2122 | |
5bf193a2 | 2123 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2124 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2125 | Set editing of command lines as they are typed."), _("\ |
2126 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2127 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2128 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2129 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2130 | set_editing, |
2131 | show_editing, | |
5bf193a2 AC |
2132 | &setlist, &showlist); |
2133 | ||
2134 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2135 | Set saving of the history record on exit."), _("\ | |
2136 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2137 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2138 | Without an argument, saving is enabled."), |
2139 | NULL, | |
920d2a44 | 2140 | show_write_history_p, |
5bf193a2 | 2141 | &sethistlist, &showhistlist); |
9e0b60a8 | 2142 | |
ebfd00d2 PP |
2143 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2144 | &history_size_setshow_var, _("\ | |
590042fc PW |
2145 | Set the size of the command history."), _("\ |
2146 | Show the size of the command history."), _("\ | |
2147 | This is the number of previous commands to keep a record of.\n\ | |
f81d1120 PA |
2148 | If set to \"unlimited\", the number of commands kept in the history\n\ |
2149 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2150 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2151 | set_history_size_command, |
2152 | show_history_size, | |
2153 | &sethistlist, &showhistlist); | |
4d28ad1e | 2154 | |
fc637f04 PP |
2155 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2156 | &history_remove_duplicates, _("\ | |
2157 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2158 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2159 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2160 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2161 | entry, each time a new history entry is added.\n\ | |
2162 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2163 | Only history entries added during this session are considered for removal.\n\ | |
2164 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2165 | By default this option is set to 0."), | |
2166 | NULL, | |
2167 | show_history_remove_duplicates, | |
2168 | &sethistlist, &showhistlist); | |
2169 | ||
4d28ad1e | 2170 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
590042fc PW |
2171 | Set the filename in which to record the command history."), _("\ |
2172 | Show the filename in which to record the command history."), _("\ | |
4d28ad1e | 2173 | (the list of previous commands of which a record is kept)."), |
97c85fc6 | 2174 | set_history_filename, |
920d2a44 | 2175 | show_history_filename, |
4d28ad1e | 2176 | &sethistlist, &showhistlist); |
9e0b60a8 | 2177 | |
e360902b | 2178 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2179 | Set whether to confirm potentially dangerous operations."), _("\ |
2180 | Show whether to confirm potentially dangerous operations."), NULL, | |
2181 | NULL, | |
e360902b | 2182 | show_confirm, |
5bf193a2 | 2183 | &setlist, &showlist); |
9e0b60a8 | 2184 | |
85c07804 AC |
2185 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2186 | Set annotation_level."), _("\ | |
2187 | Show annotation_level."), _("\ | |
9e0b60a8 | 2188 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2189 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2190 | NULL, |
920d2a44 | 2191 | show_annotation_level, |
85c07804 | 2192 | &setlist, &showlist); |
362646f5 | 2193 | |
5bf193a2 AC |
2194 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2195 | &exec_done_display_p, _("\ | |
2196 | Set notification of completion for asynchronous execution commands."), _("\ | |
2197 | Show notification of completion for asynchronous execution commands."), _("\ | |
2198 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2199 | NULL, | |
920d2a44 | 2200 | show_exec_done_display_p, |
5bf193a2 | 2201 | &setlist, &showlist); |
b14b1491 TT |
2202 | |
2203 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2204 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2205 | _("Show GDB's data directory."), |
2206 | _("\ | |
2207 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2208 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2209 | &setlist, |
2210 | &showlist); | |
268a799a PA |
2211 | |
2212 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2213 | &interactive_mode, _("\ | |
2214 | Set whether GDB's standard input is a terminal."), _("\ | |
2215 | Show whether GDB's standard input is a terminal."), _("\ | |
2216 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2217 | means that GDB should wait for the user to answer queries associated to\n\ | |
2218 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2219 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2220 | If auto (the default), determine which mode to use based on the standard\n\ | |
2221 | input settings."), | |
2222 | NULL, | |
2223 | show_interactive_mode, | |
2224 | &setlist, &showlist); | |
60eb5395 PA |
2225 | |
2226 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
590042fc PW |
2227 | Create a new UI.\n\ |
2228 | Usage: new-ui INTERPRETER TTY\n\ | |
60eb5395 | 2229 | The first argument is the name of the interpreter to run.\n\ |
89549d7f | 2230 | The second argument is the terminal the UI runs on."), &cmdlist); |
60eb5395 | 2231 | set_cmd_completer (c, interpreter_completer); |
9e0b60a8 | 2232 | } |
64cdedad EZ |
2233 | |
2234 | void | |
2235 | gdb_init (char *argv0) | |
2236 | { | |
68bb5386 PW |
2237 | saved_command_line = xstrdup (""); |
2238 | previous_saved_command_line = xstrdup (""); | |
2239 | ||
64cdedad EZ |
2240 | if (pre_init_ui_hook) |
2241 | pre_init_ui_hook (); | |
2242 | ||
371d5dec | 2243 | /* Run the init function of each source file. */ |
64cdedad | 2244 | |
64cdedad EZ |
2245 | #ifdef __MSDOS__ |
2246 | /* Make sure we return to the original directory upon exit, come | |
2247 | what may, since the OS doesn't do that for us. */ | |
2248 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2249 | #endif | |
2250 | ||
371d5dec MS |
2251 | init_cmd_lists (); /* This needs to be done first. */ |
2252 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
9dea9163 | 2253 | |
24b73f8e PP |
2254 | init_page_info (); |
2255 | ||
9dea9163 | 2256 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2257 | initialize_all_files (); |
9dea9163 | 2258 | |
6c95b8df PA |
2259 | /* This creates the current_program_space. Do this after all the |
2260 | _initialize_foo routines have had a chance to install their | |
2261 | per-sspace data keys. Also do this before | |
2262 | initialize_current_architecture is called, because it accesses | |
2263 | exec_bfd of the current program space. */ | |
2264 | initialize_progspace (); | |
2265 | initialize_inferiors (); | |
64cdedad | 2266 | initialize_current_architecture (); |
371d5dec | 2267 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2268 | |
0ea3f30e DJ |
2269 | initialize_stdin_serial (); |
2270 | ||
6a06d660 PP |
2271 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2272 | to alter it. */ | |
2273 | set_initial_gdb_ttystate (); | |
2274 | ||
362646f5 | 2275 | async_init_signals (); |
64cdedad | 2276 | |
371d5dec MS |
2277 | /* We need a default language for parsing expressions, so simple |
2278 | things like "set width 0" won't fail if no language is explicitly | |
2279 | set in a config file or implicitly set by reading an executable | |
2280 | during startup. */ | |
64cdedad | 2281 | set_language (language_c); |
371d5dec | 2282 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2283 | |
6dddc817 | 2284 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2285 | installed. For example "info pretty-printer" needs the "info" |
2286 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2287 | script initialization here. */ |
2288 | finish_ext_lang_initialization (); | |
7734102d EZ |
2289 | |
2290 | /* Create $_gdb_major and $_gdb_minor convenience variables. */ | |
2291 | init_gdb_version_vars (); | |
64cdedad | 2292 | } |