Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
11bc5fe4 | 3 | Copyright (C) 1986-2020 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); |
c6ac7fc9 PW |
630 | else if (c->theclass == class_user |
631 | && c->prefixlist && !c->allow_unknown) | |
632 | /* If this is a user defined prefix that does not allow unknown | |
633 | (in other words, C is a prefix command and not a command | |
634 | that can be followed by its args), report the list of | |
635 | subcommands. */ | |
636 | { | |
637 | printf_unfiltered | |
638 | ("\"%.*s\" must be followed by the name of a subcommand.\n", | |
639 | (int) strlen (c->prefixname) - 1, c->prefixname); | |
640 | help_list (*c->prefixlist, c->prefixname, all_commands, gdb_stdout); | |
641 | } | |
5b9afe8a YQ |
642 | else if (c->type == set_cmd) |
643 | do_set_command (arg, from_tty, c); | |
644 | else if (c->type == show_cmd) | |
645 | do_show_command (arg, from_tty, c); | |
f436dd25 | 646 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 647 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 648 | else if (deprecated_call_command_hook) |
050a2e1d | 649 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 650 | else |
050a2e1d | 651 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 652 | |
98880d46 | 653 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 654 | |
371d5dec | 655 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 656 | execute_cmd_post_hook (c); |
c906108c | 657 | |
95a6b0a1 | 658 | if (repeat_arguments != NULL && cmd_start == saved_command_line) |
85c4be7c TT |
659 | { |
660 | gdb_assert (strlen (args_pointer) >= strlen (repeat_arguments)); | |
95a6b0a1 TT |
661 | strcpy (saved_command_line + (args_pointer - cmd_start), |
662 | repeat_arguments); | |
85c4be7c | 663 | } |
c906108c SS |
664 | } |
665 | ||
0ca1fc29 JB |
666 | /* Only perform the frame-language-change check if the command |
667 | we just finished executing did not resume the inferior's execution. | |
668 | If it did resume the inferior, we will do that check after | |
669 | the inferior stopped. */ | |
00431a78 | 670 | if (has_stack_frames () && inferior_thread ()->state != THREAD_RUNNING) |
0ca1fc29 | 671 | check_frame_language_change (); |
028d0ed5 | 672 | |
694c6bf5 | 673 | cleanup_if_error.release (); |
c906108c SS |
674 | } |
675 | ||
b8fd0918 PW |
676 | /* Run execute_command for P and FROM_TTY. Sends its output to FILE, |
677 | do not display it to the screen. BATCH_FLAG will be | |
5da1313b JK |
678 | temporarily set to true. */ |
679 | ||
b8fd0918 PW |
680 | void |
681 | execute_command_to_ui_file (struct ui_file *file, const char *p, int from_tty) | |
5da1313b | 682 | { |
5da1313b JK |
683 | /* GDB_STDOUT should be better already restored during these |
684 | restoration callbacks. */ | |
b95de2b7 | 685 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 686 | |
b7b633e9 | 687 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 688 | |
ca5909c7 | 689 | { |
b8fd0918 | 690 | current_uiout->redirect (file); |
ca5909c7 TT |
691 | ui_out_redirect_pop redirect_popper (current_uiout); |
692 | ||
693 | scoped_restore save_stdout | |
b8fd0918 | 694 | = make_scoped_restore (&gdb_stdout, file); |
ca5909c7 | 695 | scoped_restore save_stderr |
b8fd0918 | 696 | = make_scoped_restore (&gdb_stderr, file); |
ca5909c7 | 697 | scoped_restore save_stdlog |
b8fd0918 | 698 | = make_scoped_restore (&gdb_stdlog, file); |
ca5909c7 | 699 | scoped_restore save_stdtarg |
b8fd0918 | 700 | = make_scoped_restore (&gdb_stdtarg, file); |
ca5909c7 | 701 | scoped_restore save_stdtargerr |
b8fd0918 | 702 | = make_scoped_restore (&gdb_stdtargerr, file); |
ca5909c7 TT |
703 | |
704 | execute_command (p, from_tty); | |
705 | } | |
b8fd0918 PW |
706 | } |
707 | ||
708 | /* Run execute_command for P and FROM_TTY. Capture its output into the | |
709 | returned string, do not display it to the screen. BATCH_FLAG will be | |
710 | temporarily set to true. */ | |
711 | ||
712 | std::string | |
713 | execute_command_to_string (const char *p, int from_tty, | |
714 | bool term_out) | |
715 | { | |
716 | string_file str_file (term_out); | |
5da1313b | 717 | |
b8fd0918 | 718 | execute_command_to_ui_file (&str_file, p, from_tty); |
d7e74731 | 719 | return std::move (str_file.string ()); |
5da1313b JK |
720 | } |
721 | ||
d318976c | 722 | \f |
47a80e90 TT |
723 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
724 | set via prevent_dont_repeat. */ | |
725 | ||
726 | static int suppress_dont_repeat = 0; | |
727 | ||
68bb5386 | 728 | /* See command.h */ |
9e0b60a8 | 729 | |
d318976c FN |
730 | void |
731 | dont_repeat (void) | |
9e0b60a8 | 732 | { |
f38d3ad1 PA |
733 | struct ui *ui = current_ui; |
734 | ||
47a80e90 | 735 | if (suppress_dont_repeat || server_command) |
d318976c | 736 | return; |
9e0b60a8 | 737 | |
d318976c | 738 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
739 | thing read from stdin in line and don't want to delete it. Null |
740 | lines won't repeat here in any case. */ | |
268a799a | 741 | if (ui->instream == ui->stdin_stream) |
68bb5386 PW |
742 | { |
743 | *saved_command_line = 0; | |
744 | repeat_arguments = NULL; | |
745 | } | |
746 | } | |
747 | ||
748 | /* See command.h */ | |
749 | ||
fdbc9870 | 750 | const char * |
68bb5386 PW |
751 | repeat_previous () |
752 | { | |
753 | /* Do not repeat this command, as this command is a repeating command. */ | |
754 | dont_repeat (); | |
755 | ||
756 | /* We cannot free saved_command_line, as this line is being executed, | |
757 | so swap it with previous_saved_command_line. */ | |
758 | std::swap (previous_saved_command_line, saved_command_line); | |
759 | std::swap (previous_repeat_arguments, repeat_arguments); | |
fdbc9870 PA |
760 | |
761 | const char *prev = skip_spaces (get_saved_command_line ()); | |
762 | if (*prev == '\0') | |
763 | error (_("No previous command to relaunch")); | |
764 | return prev; | |
9e0b60a8 | 765 | } |
47a80e90 | 766 | |
68bb5386 | 767 | /* See command.h. */ |
47a80e90 | 768 | |
1ac32117 | 769 | scoped_restore_tmpl<int> |
47a80e90 TT |
770 | prevent_dont_repeat (void) |
771 | { | |
1ac32117 | 772 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
773 | } |
774 | ||
68bb5386 PW |
775 | /* See command.h. */ |
776 | ||
777 | char * | |
778 | get_saved_command_line () | |
779 | { | |
780 | return saved_command_line; | |
781 | } | |
782 | ||
783 | /* See command.h. */ | |
784 | ||
785 | void | |
786 | save_command_line (const char *cmd) | |
787 | { | |
788 | xfree (previous_saved_command_line); | |
789 | previous_saved_command_line = saved_command_line; | |
790 | previous_repeat_arguments = repeat_arguments; | |
791 | saved_command_line = xstrdup (cmd); | |
792 | repeat_arguments = NULL; | |
793 | } | |
794 | ||
d318976c FN |
795 | \f |
796 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 797 | |
7a3bde34 | 798 | It prints PROMPT once at the start. |
d318976c FN |
799 | Action is compatible with "readline", e.g. space for the result is |
800 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 801 | |
d318976c | 802 | A NULL return means end of file. */ |
c5c136ea PA |
803 | |
804 | static char * | |
7a3bde34 | 805 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 806 | { |
7a3bde34 | 807 | struct buffer line_buffer; |
f38d3ad1 | 808 | struct ui *ui = current_ui; |
3212b858 PA |
809 | /* Read from stdin if we are executing a user defined command. This |
810 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 811 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 812 | int fd = fileno (stream); |
9e0b60a8 | 813 | |
7a3bde34 PA |
814 | buffer_init (&line_buffer); |
815 | ||
816 | if (prompt != NULL) | |
9e0b60a8 | 817 | { |
d318976c FN |
818 | /* Don't use a _filtered function here. It causes the assumed |
819 | character position to be off, since the newline we read from | |
820 | the user is not accounted for. */ | |
7a3bde34 | 821 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
822 | gdb_flush (gdb_stdout); |
823 | } | |
824 | ||
9e0b60a8 JM |
825 | while (1) |
826 | { | |
7a3bde34 | 827 | int c; |
3212b858 | 828 | fd_set readfds; |
7a3bde34 | 829 | |
3212b858 PA |
830 | QUIT; |
831 | ||
832 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 833 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
834 | FD_ZERO (&readfds); |
835 | FD_SET (fd, &readfds); | |
f0881b37 | 836 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
837 | { |
838 | if (errno == EINTR) | |
839 | { | |
840 | /* If this was ctrl-c, the QUIT above handles it. */ | |
841 | continue; | |
842 | } | |
843 | perror_with_name (("select")); | |
844 | } | |
845 | ||
846 | c = fgetc (stream); | |
9e0b60a8 | 847 | |
d318976c | 848 | if (c == EOF) |
9e0b60a8 | 849 | { |
7a3bde34 | 850 | if (line_buffer.used_size > 0) |
d318976c FN |
851 | /* The last line does not end with a newline. Return it, and |
852 | if we are called again fgetc will still return EOF and | |
853 | we'll return NULL then. */ | |
9e0b60a8 | 854 | break; |
7a3bde34 | 855 | xfree (buffer_finish (&line_buffer)); |
d318976c | 856 | return NULL; |
9e0b60a8 | 857 | } |
c5aa993b | 858 | |
d318976c | 859 | if (c == '\n') |
9e0b60a8 | 860 | { |
7a3bde34 PA |
861 | if (line_buffer.used_size > 0 |
862 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
863 | line_buffer.used_size--; | |
d318976c | 864 | break; |
9e0b60a8 | 865 | } |
9e0b60a8 | 866 | |
7a3bde34 | 867 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
868 | } |
869 | ||
7a3bde34 PA |
870 | buffer_grow_char (&line_buffer, '\0'); |
871 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
872 | } |
873 | ||
d318976c FN |
874 | /* Variables which control command line editing and history |
875 | substitution. These variables are given default values at the end | |
876 | of this file. */ | |
491144b5 | 877 | static bool command_editing_p; |
920d2a44 | 878 | |
d318976c FN |
879 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
880 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 881 | event-top.c into this file, top.c. */ |
920d2a44 | 882 | |
491144b5 | 883 | /* static */ bool history_expansion_p; |
920d2a44 | 884 | |
491144b5 | 885 | static bool write_history_p; |
920d2a44 AC |
886 | static void |
887 | show_write_history_p (struct ui_file *file, int from_tty, | |
888 | struct cmd_list_element *c, const char *value) | |
889 | { | |
890 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
891 | value); | |
892 | } | |
893 | ||
840a9a1f | 894 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
895 | command. The value -1 means unlimited, and -2 means undefined. */ |
896 | static int history_size_setshow_var = -2; | |
840a9a1f | 897 | |
920d2a44 AC |
898 | static void |
899 | show_history_size (struct ui_file *file, int from_tty, | |
900 | struct cmd_list_element *c, const char *value) | |
901 | { | |
902 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
903 | value); | |
904 | } | |
905 | ||
fc637f04 PP |
906 | /* Variable associated with the "history remove-duplicates" option. |
907 | The value -1 means unlimited. */ | |
908 | static int history_remove_duplicates = 0; | |
909 | ||
910 | static void | |
911 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
912 | struct cmd_list_element *c, const char *value) | |
913 | { | |
914 | fprintf_filtered (file, | |
915 | _("The number of history entries to look back at for " | |
916 | "duplicates is %s.\n"), | |
917 | value); | |
918 | } | |
919 | ||
d318976c | 920 | static char *history_filename; |
920d2a44 AC |
921 | static void |
922 | show_history_filename (struct ui_file *file, int from_tty, | |
923 | struct cmd_list_element *c, const char *value) | |
924 | { | |
3e43a32a MS |
925 | fprintf_filtered (file, _("The filename in which to record " |
926 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
927 | value); |
928 | } | |
9e0b60a8 | 929 | |
b4f5539f | 930 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 931 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
932 | a single gdb invocation. At the ordinary top-level prompt we might |
933 | be using the async readline. That means we can't use | |
934 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
935 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
936 | `define'), gdb wants a synchronous response. |
937 | ||
938 | We used to call readline() directly, running it in synchronous | |
939 | mode. But mixing modes this way is not supported, and as of | |
940 | readline 5.x it no longer works; the arrow keys come unbound during | |
941 | the synchronous call. So we make a nested call into the event | |
942 | loop. That's what gdb_readline_wrapper is for. */ | |
943 | ||
944 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
945 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
946 | the user types Control-D for EOF. */ | |
947 | static int gdb_readline_wrapper_done; | |
948 | ||
949 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
950 | is seen. */ | |
951 | static char *gdb_readline_wrapper_result; | |
952 | ||
953 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
954 | to be called after the newline is processed (which will redisplay | |
955 | the prompt). But in gdb_readline_wrapper we will not get a new | |
956 | prompt until the next call, or until we return to the event loop. | |
957 | So we disable this hook around the newline and restore it before we | |
958 | return. */ | |
959 | static void (*saved_after_char_processing_hook) (void); | |
960 | ||
948578a9 | 961 | |
948578a9 PP |
962 | /* See top.h. */ |
963 | ||
964 | int | |
dbf30ca3 | 965 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 966 | { |
dbf30ca3 | 967 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
968 | } |
969 | ||
970 | ||
2e03ee74 DJ |
971 | /* This function is called when readline has seen a complete line of |
972 | text. */ | |
973 | ||
974 | static void | |
95bc9f0b | 975 | gdb_readline_wrapper_line (gdb::unique_xmalloc_ptr<char> &&line) |
2e03ee74 DJ |
976 | { |
977 | gdb_assert (!gdb_readline_wrapper_done); | |
95bc9f0b | 978 | gdb_readline_wrapper_result = line.release (); |
2e03ee74 DJ |
979 | gdb_readline_wrapper_done = 1; |
980 | ||
981 | /* Prevent operate-and-get-next from acting too early. */ | |
982 | saved_after_char_processing_hook = after_char_processing_hook; | |
983 | after_char_processing_hook = NULL; | |
1b05479a DJ |
984 | |
985 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 986 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
987 | reinstall the callback handler, which puts the terminal in raw |
988 | mode (or in readline lingo, in prepped state), when we're next | |
989 | ready to process user input, either in display_gdb_prompt, or if | |
990 | we're handling an asynchronous target event and running in the | |
991 | background, just before returning to the event loop to process | |
992 | further input (or more target events). */ | |
3c216924 | 993 | if (current_ui->command_editing) |
d3d4baed | 994 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
995 | } |
996 | ||
1dbeed45 | 997 | class gdb_readline_wrapper_cleanup |
2e03ee74 | 998 | { |
1dbeed45 TT |
999 | public: |
1000 | gdb_readline_wrapper_cleanup () | |
1001 | : m_handler_orig (current_ui->input_handler), | |
1002 | m_already_prompted_orig (current_ui->command_editing | |
1003 | ? rl_already_prompted : 0), | |
1004 | m_target_is_async_orig (target_is_async_p ()), | |
1005 | m_save_ui (¤t_ui) | |
1006 | { | |
1007 | current_ui->input_handler = gdb_readline_wrapper_line; | |
1008 | current_ui->secondary_prompt_depth++; | |
2e03ee74 | 1009 | |
1dbeed45 TT |
1010 | if (m_target_is_async_orig) |
1011 | target_async (0); | |
1012 | } | |
2e03ee74 | 1013 | |
1dbeed45 TT |
1014 | ~gdb_readline_wrapper_cleanup () |
1015 | { | |
1016 | struct ui *ui = current_ui; | |
0017922d | 1017 | |
1dbeed45 TT |
1018 | if (ui->command_editing) |
1019 | rl_already_prompted = m_already_prompted_orig; | |
0017922d | 1020 | |
1dbeed45 TT |
1021 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
1022 | ui->input_handler = m_handler_orig; | |
2e03ee74 | 1023 | |
1dbeed45 TT |
1024 | /* Don't restore our input handler in readline yet. That would make |
1025 | readline prep the terminal (putting it in raw mode), while the | |
1026 | line we just read may trigger execution of a command that expects | |
1027 | the terminal in the default cooked/canonical mode, such as e.g., | |
1028 | running Python's interactive online help utility. See | |
1029 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
2e03ee74 | 1030 | |
1dbeed45 TT |
1031 | gdb_readline_wrapper_result = NULL; |
1032 | gdb_readline_wrapper_done = 0; | |
1033 | ui->secondary_prompt_depth--; | |
1034 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
93d6eb10 | 1035 | |
1dbeed45 TT |
1036 | after_char_processing_hook = saved_after_char_processing_hook; |
1037 | saved_after_char_processing_hook = NULL; | |
2e03ee74 | 1038 | |
1dbeed45 TT |
1039 | if (m_target_is_async_orig) |
1040 | target_async (1); | |
1041 | } | |
2e03ee74 | 1042 | |
1dbeed45 | 1043 | DISABLE_COPY_AND_ASSIGN (gdb_readline_wrapper_cleanup); |
2e03ee74 | 1044 | |
1dbeed45 | 1045 | private: |
2e03ee74 | 1046 | |
95bc9f0b | 1047 | void (*m_handler_orig) (gdb::unique_xmalloc_ptr<char> &&); |
1dbeed45 | 1048 | int m_already_prompted_orig; |
93d6eb10 | 1049 | |
1dbeed45 TT |
1050 | /* Whether the target was async. */ |
1051 | int m_target_is_async_orig; | |
2e03ee74 | 1052 | |
4295e285 | 1053 | /* Processing events may change the current UI. */ |
1dbeed45 TT |
1054 | scoped_restore_tmpl<struct ui *> m_save_ui; |
1055 | }; | |
1056 | ||
1057 | char * | |
1058 | gdb_readline_wrapper (const char *prompt) | |
1059 | { | |
1060 | struct ui *ui = current_ui; | |
4295e285 | 1061 | |
1dbeed45 | 1062 | gdb_readline_wrapper_cleanup cleanup; |
93d6eb10 | 1063 | |
6e5d74e7 PA |
1064 | /* Display our prompt and prevent double prompt display. Don't pass |
1065 | down a NULL prompt, since that has special meaning for | |
1066 | display_gdb_prompt -- it indicates a request to print the primary | |
1067 | prompt, while we want a secondary prompt here. */ | |
1068 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
1069 | if (ui->command_editing) |
1070 | rl_already_prompted = 1; | |
2e03ee74 | 1071 | |
362646f5 | 1072 | if (after_char_processing_hook) |
2e03ee74 DJ |
1073 | (*after_char_processing_hook) (); |
1074 | gdb_assert (after_char_processing_hook == NULL); | |
1075 | ||
e0dd0826 | 1076 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1077 | if (gdb_readline_wrapper_done) |
1078 | break; | |
b4f5539f | 1079 | |
1dbeed45 | 1080 | return gdb_readline_wrapper_result; |
b4f5539f TT |
1081 | } |
1082 | ||
9e0b60a8 | 1083 | \f |
467d8519 TT |
1084 | /* The current saved history number from operate-and-get-next. |
1085 | This is -1 if not valid. */ | |
1086 | static int operate_saved_history = -1; | |
1087 | ||
1088 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1089 | do its work. */ | |
b9362cc7 | 1090 | static void |
5ae5f592 | 1091 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1092 | { |
1093 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1094 | |
467d8519 TT |
1095 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1096 | rl_get_previous_history (delta, 0); | |
1097 | operate_saved_history = -1; | |
1098 | ||
1099 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1100 | rl_redisplay (); |
467d8519 TT |
1101 | |
1102 | after_char_processing_hook = NULL; | |
1103 | rl_pre_input_hook = NULL; | |
1104 | } | |
1105 | ||
1106 | /* This is a gdb-local readline command handler. It accepts the | |
1107 | current command line (like RET does) and, if this command was taken | |
1108 | from the history, arranges for the next command in the history to | |
1109 | appear on the command line when the prompt returns. | |
1110 | We ignore the arguments. */ | |
1111 | static int | |
1112 | gdb_rl_operate_and_get_next (int count, int key) | |
1113 | { | |
b5686e99 MK |
1114 | int where; |
1115 | ||
362646f5 AC |
1116 | /* Use the async hook. */ |
1117 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1118 | |
b5686e99 MK |
1119 | /* Find the current line, and find the next line to use. */ |
1120 | where = where_history(); | |
1121 | ||
1fb2e2b5 PA |
1122 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1123 | || (where >= history_length - 1)) | |
b5686e99 MK |
1124 | operate_saved_history = where; |
1125 | else | |
1126 | operate_saved_history = where + 1; | |
1127 | ||
467d8519 TT |
1128 | return rl_newline (1, key); |
1129 | } | |
08b13bdd PP |
1130 | |
1131 | /* Number of user commands executed during this session. */ | |
1132 | ||
1133 | static int command_count = 0; | |
1134 | ||
1135 | /* Add the user command COMMAND to the input history list. */ | |
1136 | ||
1137 | void | |
1138 | gdb_add_history (const char *command) | |
1139 | { | |
08b13bdd | 1140 | command_count++; |
fc637f04 PP |
1141 | |
1142 | if (history_remove_duplicates != 0) | |
1143 | { | |
1144 | int lookbehind; | |
1145 | int lookbehind_threshold; | |
1146 | ||
1147 | /* The lookbehind threshold for finding a duplicate history entry is | |
1148 | bounded by command_count because we can't meaningfully delete | |
1149 | history entries that are already stored in the history file since | |
1150 | the history file is appended to. */ | |
1151 | if (history_remove_duplicates == -1 | |
1152 | || history_remove_duplicates > command_count) | |
1153 | lookbehind_threshold = command_count; | |
1154 | else | |
1155 | lookbehind_threshold = history_remove_duplicates; | |
1156 | ||
1157 | using_history (); | |
1158 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1159 | { | |
1160 | HIST_ENTRY *temp = previous_history (); | |
1161 | ||
1162 | if (temp == NULL) | |
1163 | break; | |
1164 | ||
1165 | if (strcmp (temp->line, command) == 0) | |
1166 | { | |
1167 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1168 | command_count--; | |
1169 | free_history_entry (prev); | |
1170 | break; | |
1171 | } | |
1172 | } | |
1173 | using_history (); | |
1174 | } | |
1175 | ||
1176 | add_history (command); | |
08b13bdd PP |
1177 | } |
1178 | ||
1179 | /* Safely append new history entries to the history file in a corruption-free | |
1180 | way using an intermediate local history file. */ | |
1181 | ||
1182 | static void | |
1183 | gdb_safe_append_history (void) | |
1184 | { | |
1185 | int ret, saved_errno; | |
08b13bdd | 1186 | |
8cff8730 TT |
1187 | std::string local_history_filename |
1188 | = string_printf ("%s-gdb%ld~", history_filename, (long) getpid ()); | |
08b13bdd | 1189 | |
8cff8730 | 1190 | ret = rename (history_filename, local_history_filename.c_str ()); |
08b13bdd PP |
1191 | saved_errno = errno; |
1192 | if (ret < 0 && saved_errno != ENOENT) | |
1193 | { | |
1194 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1195 | history_filename, local_history_filename.c_str (), |
08b13bdd PP |
1196 | safe_strerror (saved_errno)); |
1197 | } | |
1198 | else | |
1199 | { | |
1200 | if (ret < 0) | |
1201 | { | |
1202 | /* If the rename failed with ENOENT then either the global history | |
1203 | file never existed in the first place or another GDB process is | |
1204 | currently appending to it (and has thus temporarily renamed it). | |
1205 | Since we can't distinguish between these two cases, we have to | |
1206 | conservatively assume the first case and therefore must write out | |
1207 | (not append) our known history to our local history file and try | |
1208 | to move it back anyway. Otherwise a global history file would | |
1209 | never get created! */ | |
1210 | gdb_assert (saved_errno == ENOENT); | |
8cff8730 | 1211 | write_history (local_history_filename.c_str ()); |
08b13bdd PP |
1212 | } |
1213 | else | |
1214 | { | |
8cff8730 | 1215 | append_history (command_count, local_history_filename.c_str ()); |
2093d2d3 | 1216 | if (history_is_stifled ()) |
8cff8730 TT |
1217 | history_truncate_file (local_history_filename.c_str (), |
1218 | history_max_entries); | |
08b13bdd PP |
1219 | } |
1220 | ||
8cff8730 | 1221 | ret = rename (local_history_filename.c_str (), history_filename); |
08b13bdd PP |
1222 | saved_errno = errno; |
1223 | if (ret < 0 && saved_errno != EEXIST) | |
1224 | warning (_("Could not rename %s to %s: %s"), | |
8cff8730 | 1225 | local_history_filename.c_str (), history_filename, |
08b13bdd PP |
1226 | safe_strerror (saved_errno)); |
1227 | } | |
08b13bdd PP |
1228 | } |
1229 | ||
b69d38af PA |
1230 | /* Read one line from the command input stream `instream' into a local |
1231 | static buffer. The buffer is made bigger as necessary. Returns | |
1232 | the address of the start of the line. | |
9e0b60a8 | 1233 | |
d318976c | 1234 | NULL is returned for end of file. |
9e0b60a8 | 1235 | |
b69d38af PA |
1236 | This routine either uses fancy command line editing or simple input |
1237 | as the user has requested. */ | |
10689f25 | 1238 | |
992a7040 | 1239 | const char * |
89fbedf3 | 1240 | command_line_input (const char *prompt_arg, const char *annotation_suffix) |
9e0b60a8 | 1241 | { |
b69d38af PA |
1242 | static struct buffer cmd_line_buffer; |
1243 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1244 | struct ui *ui = current_ui; |
38bcc89d | 1245 | const char *prompt = prompt_arg; |
b69d38af | 1246 | char *cmd; |
268a799a | 1247 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1248 | |
1249 | /* The annotation suffix must be non-NULL. */ | |
1250 | if (annotation_suffix == NULL) | |
1251 | annotation_suffix = ""; | |
9e0b60a8 | 1252 | |
268a799a | 1253 | if (from_tty && annotation_level > 1) |
d318976c | 1254 | { |
38bcc89d SM |
1255 | char *local_prompt; |
1256 | ||
224c3ddb SM |
1257 | local_prompt |
1258 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1259 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1260 | if (prompt == NULL) |
d318976c FN |
1261 | local_prompt[0] = '\0'; |
1262 | else | |
38bcc89d | 1263 | strcpy (local_prompt, prompt); |
d318976c FN |
1264 | strcat (local_prompt, "\n\032\032"); |
1265 | strcat (local_prompt, annotation_suffix); | |
1266 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1267 | |
1268 | prompt = local_prompt; | |
d318976c | 1269 | } |
9e0b60a8 | 1270 | |
b69d38af | 1271 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1272 | { |
b69d38af PA |
1273 | buffer_init (&cmd_line_buffer); |
1274 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1275 | } |
9e0b60a8 | 1276 | |
b69d38af PA |
1277 | /* Starting a new command line. */ |
1278 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1279 | |
6aa899ce | 1280 | #ifdef SIGTSTP |
d318976c | 1281 | if (job_control) |
6aa899ce | 1282 | signal (SIGTSTP, handle_sigtstp); |
d318976c FN |
1283 | #endif |
1284 | ||
1285 | while (1) | |
9e0b60a8 | 1286 | { |
2139e8dc | 1287 | gdb::unique_xmalloc_ptr<char> rl; |
b69d38af | 1288 | |
371d5dec MS |
1289 | /* Make sure that all output has been output. Some machines may |
1290 | let you get away with leaving out some of the gdb_flush, but | |
1291 | not all. */ | |
d318976c FN |
1292 | wrap_here (""); |
1293 | gdb_flush (gdb_stdout); | |
1294 | gdb_flush (gdb_stderr); | |
1295 | ||
6caa91b6 | 1296 | if (!source_file_name.empty ()) |
637537d0 | 1297 | ++source_line_number; |
d318976c | 1298 | |
268a799a | 1299 | if (from_tty && annotation_level > 1) |
d318976c | 1300 | { |
306d9ac5 DC |
1301 | puts_unfiltered ("\n\032\032pre-"); |
1302 | puts_unfiltered (annotation_suffix); | |
1303 | puts_unfiltered ("\n"); | |
d318976c FN |
1304 | } |
1305 | ||
1306 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1307 | if (deprecated_readline_hook |
1308 | && from_tty | |
1309 | && input_interactive_p (current_ui)) | |
d318976c | 1310 | { |
2139e8dc | 1311 | rl.reset ((*deprecated_readline_hook) (prompt)); |
d318976c | 1312 | } |
268a799a PA |
1313 | else if (command_editing_p |
1314 | && from_tty | |
1315 | && input_interactive_p (current_ui)) | |
d318976c | 1316 | { |
2139e8dc | 1317 | rl.reset (gdb_readline_wrapper (prompt)); |
d318976c | 1318 | } |
9e0b60a8 | 1319 | else |
d318976c | 1320 | { |
2139e8dc | 1321 | rl.reset (gdb_readline_no_editing (prompt)); |
d318976c | 1322 | } |
9e0b60a8 | 1323 | |
2139e8dc | 1324 | cmd = handle_line_of_input (&cmd_line_buffer, rl.get (), |
89fbedf3 | 1325 | 0, annotation_suffix); |
b69d38af | 1326 | if (cmd == (char *) EOF) |
d318976c | 1327 | { |
b69d38af | 1328 | cmd = NULL; |
d318976c | 1329 | break; |
9e0b60a8 | 1330 | } |
b69d38af | 1331 | if (cmd != NULL) |
d318976c | 1332 | break; |
9e0b60a8 | 1333 | |
6e5d74e7 PA |
1334 | /* Got partial input. I.e., got a line that ends with a |
1335 | continuation character (backslash). Suppress printing the | |
1336 | prompt again. */ | |
38bcc89d | 1337 | prompt = NULL; |
d318976c | 1338 | } |
9e0b60a8 | 1339 | |
6aa899ce | 1340 | #ifdef SIGTSTP |
d318976c | 1341 | if (job_control) |
6aa899ce | 1342 | signal (SIGTSTP, SIG_DFL); |
d318976c | 1343 | #endif |
9e0b60a8 | 1344 | |
b69d38af | 1345 | return cmd; |
9e0b60a8 JM |
1346 | } |
1347 | \f | |
c61b06a1 | 1348 | /* See top.h. */ |
9e0b60a8 | 1349 | void |
c61b06a1 | 1350 | print_gdb_version (struct ui_file *stream, bool interactive) |
9e0b60a8 JM |
1351 | { |
1352 | /* From GNU coding standards, first line is meant to be easy for a | |
1353 | program to parse, and is just canonical program name and version | |
371d5dec | 1354 | number, which starts after last space. */ |
9e0b60a8 | 1355 | |
d47032b7 TT |
1356 | ui_file_style style; |
1357 | if (interactive) | |
1358 | { | |
1359 | ui_file_style nstyle = { ui_file_style::MAGENTA, ui_file_style::NONE, | |
1360 | ui_file_style::BOLD }; | |
1361 | style = nstyle; | |
1362 | } | |
1363 | fprintf_styled (stream, style, "GNU gdb %s%s\n", PKGVERSION, version); | |
9e0b60a8 | 1364 | |
371d5dec | 1365 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1366 | |
3e43a32a | 1367 | fprintf_filtered (stream, |
e9de78be | 1368 | "Copyright (C) 2020 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1369 | |
1370 | /* Following the copyright is a brief statement that the program is | |
1371 | free software, that users are free to copy and change it on | |
1372 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1373 | there is no warranty. */ |
9e0b60a8 JM |
1374 | |
1375 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1376 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1377 | \nThis is free software: you are free to change and redistribute it.\n\ | |
c61b06a1 TT |
1378 | There is NO WARRANTY, to the extent permitted by law."); |
1379 | ||
1380 | if (!interactive) | |
1381 | return; | |
1382 | ||
1383 | fprintf_filtered (stream, ("\nType \"show copying\" and " | |
1384 | "\"show warranty\" for details.\n")); | |
9e0b60a8 | 1385 | |
371d5dec | 1386 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1387 | |
1388 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1389 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1390 | { |
3e43a32a MS |
1391 | fprintf_filtered (stream, "--host=%s --target=%s", |
1392 | host_name, target_name); | |
9e0b60a8 JM |
1393 | } |
1394 | else | |
1395 | { | |
1396 | fprintf_filtered (stream, "%s", host_name); | |
1397 | } | |
c61b06a1 TT |
1398 | fprintf_filtered (stream, "\".\n"); |
1399 | ||
1400 | fprintf_filtered (stream, _("Type \"show configuration\" " | |
1401 | "for configuration details.\n")); | |
c16158bc JM |
1402 | |
1403 | if (REPORT_BUGS_TO[0]) | |
1404 | { | |
6eaaf48b | 1405 | fprintf_filtered (stream, |
c61b06a1 | 1406 | _("For bug reporting instructions, please see:\n")); |
1cf55f60 | 1407 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1408 | } |
1cf55f60 PM |
1409 | fprintf_filtered (stream, |
1410 | _("Find the GDB manual and other documentation \ | |
c61b06a1 TT |
1411 | resources online at:\n <http://www.gnu.org/software/gdb/documentation/>.")); |
1412 | fprintf_filtered (stream, "\n\n"); | |
1cf55f60 | 1413 | fprintf_filtered (stream, _("For help, type \"help\".\n")); |
7734102d EZ |
1414 | fprintf_filtered (stream, |
1415 | _("Type \"apropos word\" to search for commands \ | |
1416 | related to \"word\".")); | |
9e0b60a8 | 1417 | } |
6eaaf48b EZ |
1418 | |
1419 | /* Print the details of GDB build-time configuration. */ | |
1420 | void | |
1421 | print_gdb_configuration (struct ui_file *stream) | |
1422 | { | |
1423 | fprintf_filtered (stream, _("\ | |
1424 | This GDB was configured as follows:\n\ | |
1425 | configure --host=%s --target=%s\n\ | |
1426 | "), host_name, target_name); | |
1427 | fprintf_filtered (stream, _("\ | |
1428 | --with-auto-load-dir=%s\n\ | |
1429 | --with-auto-load-safe-path=%s\n\ | |
1430 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1431 | #if HAVE_LIBEXPAT | |
1432 | fprintf_filtered (stream, _("\ | |
1433 | --with-expat\n\ | |
1434 | ")); | |
1435 | #else | |
1436 | fprintf_filtered (stream, _("\ | |
1437 | --without-expat\n\ | |
1438 | ")); | |
1439 | #endif | |
1440 | if (GDB_DATADIR[0]) | |
1441 | fprintf_filtered (stream, _("\ | |
1442 | --with-gdb-datadir=%s%s\n\ | |
1443 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1444 | #ifdef ICONV_BIN | |
1445 | fprintf_filtered (stream, _("\ | |
1446 | --with-iconv-bin=%s%s\n\ | |
1447 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1448 | #endif | |
1449 | if (JIT_READER_DIR[0]) | |
1450 | fprintf_filtered (stream, _("\ | |
1451 | --with-jit-reader-dir=%s%s\n\ | |
1452 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1453 | #if HAVE_LIBUNWIND_IA64_H | |
1454 | fprintf_filtered (stream, _("\ | |
1455 | --with-libunwind-ia64\n\ | |
1456 | ")); | |
1457 | #else | |
1458 | fprintf_filtered (stream, _("\ | |
1459 | --without-libunwind-ia64\n\ | |
1460 | ")); | |
1461 | #endif | |
1462 | #if HAVE_LIBLZMA | |
1463 | fprintf_filtered (stream, _("\ | |
1464 | --with-lzma\n\ | |
1465 | ")); | |
1466 | #else | |
1467 | fprintf_filtered (stream, _("\ | |
1468 | --without-lzma\n\ | |
1469 | ")); | |
1470 | #endif | |
9bd8e0b0 | 1471 | #if HAVE_LIBBABELTRACE |
5c91fe6e | 1472 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1473 | --with-babeltrace\n\ |
1474 | ")); | |
1475 | #else | |
5c91fe6e | 1476 | fprintf_filtered (stream, _("\ |
527178f7 | 1477 | --without-babeltrace\n \ |
9bd8e0b0 EZ |
1478 | ")); |
1479 | #endif | |
1480 | #if HAVE_LIBIPT | |
5c91fe6e | 1481 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1482 | --with-intel-pt\n\ |
1483 | ")); | |
1484 | #else | |
5c91fe6e | 1485 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1486 | --without-intel-pt\n\ |
1487 | ")); | |
1488 | #endif | |
9bd8e0b0 | 1489 | #if HAVE_LIBMPFR |
5c91fe6e | 1490 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1491 | --with-mpfr\n\ |
1492 | ")); | |
1493 | #else | |
5c91fe6e | 1494 | fprintf_filtered (stream, _("\ |
9bd8e0b0 EZ |
1495 | --without-mpfr\n\ |
1496 | ")); | |
1497 | #endif | |
527178f7 | 1498 | #if HAVE_LIBXXHASH |
5c91fe6e | 1499 | fprintf_filtered (stream, _("\ |
527178f7 EZ |
1500 | --with-xxhash\n\ |
1501 | ")); | |
1502 | #else | |
5c91fe6e | 1503 | fprintf_filtered (stream, _("\ |
527178f7 EZ |
1504 | --without-xxhash\n\ |
1505 | ")); | |
1506 | #endif | |
6eaaf48b EZ |
1507 | #ifdef WITH_PYTHON_PATH |
1508 | fprintf_filtered (stream, _("\ | |
1509 | --with-python=%s%s\n\ | |
1510 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
50c7c5b8 ДП |
1511 | #else |
1512 | fprintf_filtered (stream, _("\ | |
1513 | --without-python\n\ | |
1514 | ")); | |
6eaaf48b | 1515 | #endif |
97d66cc6 EZ |
1516 | #if HAVE_GUILE |
1517 | fprintf_filtered (stream, _("\ | |
1518 | --with-guile\n\ | |
1519 | ")); | |
1520 | #else | |
1521 | fprintf_filtered (stream, _("\ | |
1522 | --without-guile\n\ | |
1523 | ")); | |
1524 | #endif | |
189b8c2e ST |
1525 | #if HAVE_SOURCE_HIGHLIGHT |
1526 | fprintf_filtered (stream, _("\ | |
1527 | --enable-source-highlight\n\ | |
1528 | ")); | |
1529 | #else | |
1530 | fprintf_filtered (stream, _("\ | |
1531 | --disable-source-highlight\n\ | |
1532 | ")); | |
1533 | #endif | |
6eaaf48b EZ |
1534 | #ifdef RELOC_SRCDIR |
1535 | fprintf_filtered (stream, _("\ | |
1536 | --with-relocated-sources=%s\n\ | |
1537 | "), RELOC_SRCDIR); | |
1538 | #endif | |
1539 | if (DEBUGDIR[0]) | |
1540 | fprintf_filtered (stream, _("\ | |
1541 | --with-separate-debug-dir=%s%s\n\ | |
1542 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1543 | if (TARGET_SYSTEM_ROOT[0]) | |
1544 | fprintf_filtered (stream, _("\ | |
1545 | --with-sysroot=%s%s\n\ | |
1546 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1547 | if (SYSTEM_GDBINIT[0]) | |
1548 | fprintf_filtered (stream, _("\ | |
1549 | --with-system-gdbinit=%s%s\n\ | |
1550 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
ed2a2229 CB |
1551 | if (SYSTEM_GDBINIT_DIR[0]) |
1552 | fprintf_filtered (stream, _("\ | |
1553 | --with-system-gdbinit-dir=%s%s\n\ | |
1554 | "), SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
48d1d6f5 EZ |
1555 | /* We assume "relocatable" will be printed at least once, thus we always |
1556 | print this text. It's a reasonably safe assumption for now. */ | |
1557 | fprintf_filtered (stream, _("\n\ | |
1558 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1559 | tree, and GDB will still find it.)\n\ | |
1560 | ")); | |
6eaaf48b | 1561 | } |
9e0b60a8 | 1562 | \f |
95298e72 | 1563 | |
ab821bc6 PA |
1564 | /* The current top level prompt, settable with "set prompt", and/or |
1565 | with the python `gdb.prompt_hook' hook. */ | |
1566 | static char *top_prompt; | |
9e0b60a8 | 1567 | |
ab821bc6 | 1568 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1569 | |
1570 | char * | |
ab821bc6 | 1571 | get_prompt (void) |
95298e72 | 1572 | { |
ab821bc6 | 1573 | return top_prompt; |
95298e72 PM |
1574 | } |
1575 | ||
ab821bc6 | 1576 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1577 | |
1578 | void | |
ab821bc6 | 1579 | set_prompt (const char *s) |
95298e72 | 1580 | { |
ab821bc6 | 1581 | char *p = xstrdup (s); |
95298e72 | 1582 | |
ab821bc6 PA |
1583 | xfree (top_prompt); |
1584 | top_prompt = p; | |
9e0b60a8 | 1585 | } |
9e0b60a8 | 1586 | \f |
c5aa993b | 1587 | |
b0abbc58 | 1588 | struct qt_args |
9e0b60a8 | 1589 | { |
b0abbc58 JJ |
1590 | int from_tty; |
1591 | }; | |
9e0b60a8 | 1592 | |
54a012c9 PA |
1593 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1594 | inferior, depending on how we originally gained control of it. */ | |
1595 | ||
1596 | static int | |
1597 | kill_or_detach (struct inferior *inf, void *args) | |
1598 | { | |
19ba03f4 | 1599 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 | 1600 | |
6c95b8df PA |
1601 | if (inf->pid == 0) |
1602 | return 0; | |
1603 | ||
00431a78 | 1604 | thread_info *thread = any_thread_of_inferior (inf); |
b8fa0bfa | 1605 | if (thread != NULL) |
9e0b60a8 | 1606 | { |
00431a78 | 1607 | switch_to_thread (thread); |
c35b1492 PA |
1608 | |
1609 | /* Leave core files alone. */ | |
1610 | if (target_has_execution) | |
1611 | { | |
1612 | if (inf->attach_flag) | |
6e1e1966 | 1613 | target_detach (inf, qt->from_tty); |
c35b1492 PA |
1614 | else |
1615 | target_kill (); | |
1616 | } | |
9e0b60a8 JM |
1617 | } |
1618 | ||
54a012c9 PA |
1619 | return 0; |
1620 | } | |
1621 | ||
b8fa0bfa PA |
1622 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1623 | will do to each inferior on a "quit". ARG points to a struct | |
1624 | ui_out where output is to be collected. */ | |
1625 | ||
1626 | static int | |
1627 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1628 | { | |
19ba03f4 | 1629 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1630 | |
6c95b8df PA |
1631 | if (inf->pid == 0) |
1632 | return 0; | |
1633 | ||
b8fa0bfa PA |
1634 | if (inf->attach_flag) |
1635 | fprintf_filtered (stb, | |
1636 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
a068643d | 1637 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1638 | else |
1639 | fprintf_filtered (stb, | |
1640 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
a068643d | 1641 | target_pid_to_str (ptid_t (inf->pid)).c_str ()); |
b8fa0bfa PA |
1642 | |
1643 | return 0; | |
1644 | } | |
1645 | ||
1646 | /* If necessary, make the user confirm that we should quit. Return | |
1647 | non-zero if we should quit, zero if we shouldn't. */ | |
1648 | ||
1649 | int | |
1650 | quit_confirm (void) | |
1651 | { | |
b8fa0bfa PA |
1652 | /* Don't even ask if we're only debugging a core file inferior. */ |
1653 | if (!have_live_inferiors ()) | |
1654 | return 1; | |
1655 | ||
1656 | /* Build the query string as a single string. */ | |
d7e74731 | 1657 | string_file stb; |
b8fa0bfa | 1658 | |
d7e74731 PA |
1659 | stb.puts (_("A debugging session is active.\n\n")); |
1660 | iterate_over_inferiors (print_inferior_quit_action, &stb); | |
1661 | stb.puts (_("\nQuit anyway? ")); | |
7b01d34b | 1662 | |
d7e74731 | 1663 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1664 | } |
1665 | ||
18206ca3 PP |
1666 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1667 | terminal so that we leave the terminal in the state we acquired it. */ | |
1668 | ||
1669 | static void | |
1670 | undo_terminal_modifications_before_exit (void) | |
1671 | { | |
3c216924 PA |
1672 | struct ui *saved_top_level = current_ui; |
1673 | ||
223ffa71 | 1674 | target_terminal::ours (); |
3c216924 PA |
1675 | |
1676 | current_ui = main_ui; | |
1677 | ||
18206ca3 PP |
1678 | #if defined(TUI) |
1679 | tui_disable (); | |
1680 | #endif | |
3c216924 PA |
1681 | gdb_disable_readline (); |
1682 | ||
1683 | current_ui = saved_top_level; | |
18206ca3 PP |
1684 | } |
1685 | ||
1686 | ||
b0abbc58 JJ |
1687 | /* Quit without asking for confirmation. */ |
1688 | ||
1689 | void | |
36cf1806 | 1690 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1691 | { |
1692 | int exit_code = 0; | |
365c70b1 | 1693 | struct qt_args qt; |
b0abbc58 | 1694 | |
18206ca3 PP |
1695 | undo_terminal_modifications_before_exit (); |
1696 | ||
7734102d | 1697 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1698 | value of that expression. */ |
36cf1806 TT |
1699 | if (exit_arg) |
1700 | exit_code = *exit_arg; | |
4b0ad762 AS |
1701 | else if (return_child_result) |
1702 | exit_code = return_child_result_value; | |
b0abbc58 | 1703 | |
365c70b1 JJ |
1704 | qt.from_tty = from_tty; |
1705 | ||
b0abbc58 | 1706 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1707 | |
1708 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
a70b8144 | 1709 | try |
2f9d54cf PA |
1710 | { |
1711 | disconnect_tracing (); | |
1712 | iterate_over_inferiors (kill_or_detach, &qt); | |
1713 | } | |
230d2906 | 1714 | catch (const gdb_exception &ex) |
492d29ea PA |
1715 | { |
1716 | exception_print (gdb_stderr, ex); | |
1717 | } | |
2f9d54cf PA |
1718 | |
1719 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1720 | them all out. */ | |
a70b8144 | 1721 | try |
2f9d54cf PA |
1722 | { |
1723 | pop_all_targets (); | |
1724 | } | |
230d2906 | 1725 | catch (const gdb_exception &ex) |
492d29ea PA |
1726 | { |
1727 | exception_print (gdb_stderr, ex); | |
1728 | } | |
2f9d54cf PA |
1729 | |
1730 | /* Save the history information if it is appropriate to do so. */ | |
a70b8144 | 1731 | try |
2f9d54cf | 1732 | { |
268a799a PA |
1733 | if (write_history_p && history_filename) |
1734 | { | |
1735 | struct ui *ui; | |
1736 | int save = 0; | |
1737 | ||
1738 | /* History is currently shared between all UIs. If there's | |
1739 | any UI with a terminal, save history. */ | |
1740 | ALL_UIS (ui) | |
1741 | { | |
1742 | if (input_interactive_p (ui)) | |
1743 | { | |
1744 | save = 1; | |
1745 | break; | |
1746 | } | |
1747 | } | |
1748 | ||
1749 | if (save) | |
1750 | gdb_safe_append_history (); | |
1751 | } | |
2f9d54cf | 1752 | } |
230d2906 | 1753 | catch (const gdb_exception &ex) |
492d29ea PA |
1754 | { |
1755 | exception_print (gdb_stderr, ex); | |
1756 | } | |
2f9d54cf | 1757 | |
9d1447e0 SDJ |
1758 | /* Destroy any values currently allocated now instead of leaving it |
1759 | to global destructors, because that may be too late. For | |
1760 | example, the destructors of xmethod values call into the Python | |
1761 | runtime, which is finalized via a final cleanup. */ | |
1762 | finalize_values (); | |
1763 | ||
2f9d54cf | 1764 | /* Do any final cleanups before exiting. */ |
a70b8144 | 1765 | try |
2f9d54cf | 1766 | { |
fe7b42e5 | 1767 | do_final_cleanups (); |
2f9d54cf | 1768 | } |
230d2906 | 1769 | catch (const gdb_exception &ex) |
492d29ea PA |
1770 | { |
1771 | exception_print (gdb_stderr, ex); | |
1772 | } | |
b0abbc58 | 1773 | |
9e0b60a8 JM |
1774 | exit (exit_code); |
1775 | } | |
1776 | ||
268a799a PA |
1777 | /* The value of the "interactive-mode" setting. */ |
1778 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1779 | |
268a799a PA |
1780 | /* Implement the "show interactive-mode" option. */ |
1781 | ||
1782 | static void | |
1783 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1784 | struct cmd_list_element *c, | |
1785 | const char *value) | |
9e0b60a8 | 1786 | { |
268a799a PA |
1787 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1788 | fprintf_filtered (file, "Debugger's interactive mode " | |
1789 | "is %s (currently %s).\n", | |
d9de1fe3 | 1790 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1791 | else |
1792 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1793 | } | |
1794 | ||
1795 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1796 | |
268a799a PA |
1797 | int |
1798 | input_interactive_p (struct ui *ui) | |
1799 | { | |
c63a1f86 JK |
1800 | if (batch_flag) |
1801 | return 0; | |
1802 | ||
268a799a PA |
1803 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1804 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1805 | |
268a799a | 1806 | return ui->input_interactive_p; |
9e0b60a8 JM |
1807 | } |
1808 | \f | |
9e0b60a8 | 1809 | static void |
0b39b52e | 1810 | dont_repeat_command (const char *ignored, int from_tty) |
9e0b60a8 | 1811 | { |
dc7eb48e PA |
1812 | /* Can't call dont_repeat here because we're not necessarily reading |
1813 | from stdin. */ | |
1814 | *saved_command_line = 0; | |
9e0b60a8 JM |
1815 | } |
1816 | \f | |
1817 | /* Functions to manipulate command line editing control variables. */ | |
1818 | ||
1819 | /* Number of commands to print in each call to show_commands. */ | |
1820 | #define Hist_print 10 | |
d318976c | 1821 | void |
85c4be7c | 1822 | show_commands (const char *args, int from_tty) |
9e0b60a8 JM |
1823 | { |
1824 | /* Index for history commands. Relative to history_base. */ | |
1825 | int offset; | |
1826 | ||
1827 | /* Number of the history entry which we are planning to display next. | |
1828 | Relative to history_base. */ | |
1829 | static int num = 0; | |
1830 | ||
9e0b60a8 | 1831 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1832 | |
1833 | if (args) | |
1834 | { | |
1835 | if (args[0] == '+' && args[1] == '\0') | |
1836 | /* "info editing +" should print from the stored position. */ | |
1837 | ; | |
1838 | else | |
1839 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1840 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1841 | } |
1842 | /* "show commands" means print the last Hist_print commands. */ | |
1843 | else | |
1844 | { | |
840a9a1f | 1845 | num = history_length - Hist_print; |
9e0b60a8 JM |
1846 | } |
1847 | ||
1848 | if (num < 0) | |
1849 | num = 0; | |
1850 | ||
1851 | /* If there are at least Hist_print commands, we want to display the last | |
1852 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1853 | if (history_length - num < Hist_print) |
9e0b60a8 | 1854 | { |
840a9a1f | 1855 | num = history_length - Hist_print; |
9e0b60a8 JM |
1856 | if (num < 0) |
1857 | num = 0; | |
1858 | } | |
1859 | ||
840a9a1f PA |
1860 | for (offset = num; |
1861 | offset < num + Hist_print && offset < history_length; | |
1862 | offset++) | |
9e0b60a8 JM |
1863 | { |
1864 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1865 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1866 | } |
1867 | ||
1868 | /* The next command we want to display is the next one that we haven't | |
1869 | displayed yet. */ | |
1870 | num += Hist_print; | |
1871 | ||
1872 | /* If the user repeats this command with return, it should do what | |
1873 | "show commands +" does. This is unnecessary if arg is null, | |
1874 | because "show commands +" is not useful after "show commands". */ | |
1875 | if (from_tty && args) | |
85c4be7c | 1876 | set_repeat_arguments ("+"); |
9e0b60a8 JM |
1877 | } |
1878 | ||
ebfd00d2 | 1879 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1880 | |
ebfd00d2 | 1881 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1882 | |
ebfd00d2 PP |
1883 | static void |
1884 | set_readline_history_size (int history_size) | |
1885 | { | |
1886 | gdb_assert (history_size >= -1); | |
840a9a1f | 1887 | |
ebfd00d2 | 1888 | if (history_size == -1) |
840a9a1f | 1889 | unstifle_history (); |
883b9c6c | 1890 | else |
ebfd00d2 PP |
1891 | stifle_history (history_size); |
1892 | } | |
1893 | ||
1894 | /* Called by do_setshow_command. */ | |
1895 | static void | |
eb4c3f4a TT |
1896 | set_history_size_command (const char *args, |
1897 | int from_tty, struct cmd_list_element *c) | |
ebfd00d2 PP |
1898 | { |
1899 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1900 | } |
1901 | ||
d318976c | 1902 | void |
981a3fb3 | 1903 | set_history (const char *args, int from_tty) |
9e0b60a8 | 1904 | { |
3e43a32a MS |
1905 | printf_unfiltered (_("\"set history\" must be followed " |
1906 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1907 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1908 | } |
1909 | ||
d318976c | 1910 | void |
981a3fb3 | 1911 | show_history (const char *args, int from_tty) |
9e0b60a8 JM |
1912 | { |
1913 | cmd_show_list (showhistlist, from_tty, ""); | |
1914 | } | |
1915 | ||
491144b5 | 1916 | bool info_verbose = false; /* Default verbose msgs off. */ |
9e0b60a8 | 1917 | |
94f2c730 | 1918 | /* Called by do_set_command. An elaborate joke. */ |
d318976c | 1919 | void |
eb4c3f4a | 1920 | set_verbose (const char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1921 | { |
6f937416 | 1922 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1923 | struct cmd_list_element *showcmd; |
1924 | ||
1925 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1926 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 | 1927 | |
94f2c730 PW |
1928 | if (c->doc && c->doc_allocated) |
1929 | xfree ((char *) c->doc); | |
1930 | if (showcmd->doc && showcmd->doc_allocated) | |
1931 | xfree ((char *) showcmd->doc); | |
9e0b60a8 JM |
1932 | if (info_verbose) |
1933 | { | |
94f2c730 PW |
1934 | c->doc = _("Set verbose printing of informational messages."); |
1935 | showcmd->doc = _("Show verbose printing of informational messages."); | |
9e0b60a8 JM |
1936 | } |
1937 | else | |
1938 | { | |
94f2c730 PW |
1939 | c->doc = _("Set verbosity."); |
1940 | showcmd->doc = _("Show verbosity."); | |
9e0b60a8 | 1941 | } |
94f2c730 PW |
1942 | c->doc_allocated = 0; |
1943 | showcmd->doc_allocated = 0; | |
9e0b60a8 JM |
1944 | } |
1945 | ||
9e0b60a8 | 1946 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1947 | have been read so that the user can change the history file via his |
1948 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1949 | overrides all of this. */ | |
9e0b60a8 JM |
1950 | |
1951 | void | |
fba45db2 | 1952 | init_history (void) |
9e0b60a8 | 1953 | { |
b5a9bfbe | 1954 | const char *tmpenv; |
9e0b60a8 | 1955 | |
b58c513b | 1956 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1957 | if (tmpenv) |
840a9a1f | 1958 | { |
bc460514 | 1959 | long var; |
0fc26caf | 1960 | int saved_errno; |
bc460514 PP |
1961 | char *endptr; |
1962 | ||
1963 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1964 | errno = 0; |
bc460514 | 1965 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1966 | saved_errno = errno; |
bc460514 PP |
1967 | endptr = skip_spaces (endptr); |
1968 | ||
1969 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1970 | empty string, a negative number or a huge positive number (larger than | |
1971 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1972 | history size to the number we have read. This behavior is consistent | |
1973 | with how bash handles HISTSIZE. */ | |
1974 | if (*endptr != '\0') | |
1975 | ; | |
1976 | else if (*tmpenv == '\0' | |
1977 | || var < 0 | |
0fc26caf PP |
1978 | || var > INT_MAX |
1979 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1980 | errno after calling strtol to distinguish between a value that | |
1981 | is exactly INT_MAX and an overflowing value that was clamped | |
1982 | to INT_MAX. */ | |
1983 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1984 | history_size_setshow_var = -1; |
1985 | else | |
1986 | history_size_setshow_var = var; | |
840a9a1f | 1987 | } |
bc460514 PP |
1988 | |
1989 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1990 | default. */ | |
1991 | if (history_size_setshow_var == -2) | |
840a9a1f | 1992 | history_size_setshow_var = 256; |
9e0b60a8 | 1993 | |
ebfd00d2 | 1994 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1995 | |
1996 | tmpenv = getenv ("GDBHISTFILE"); | |
1997 | if (tmpenv) | |
1b36a34b | 1998 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1999 | else if (!history_filename) |
2000 | { | |
2001 | /* We include the current directory so that if the user changes | |
2002 | directories the file written will be the same as the one | |
2003 | that was read. */ | |
a0b3c4fd | 2004 | #ifdef __MSDOS__ |
eb2f494a | 2005 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
2006 | history_filename = concat (current_directory, "/_gdb_history", |
2007 | (char *)NULL); | |
a0b3c4fd | 2008 | #else |
1754f103 MK |
2009 | history_filename = concat (current_directory, "/.gdb_history", |
2010 | (char *)NULL); | |
a0b3c4fd | 2011 | #endif |
c5aa993b | 2012 | } |
9e0b60a8 JM |
2013 | read_history (history_filename); |
2014 | } | |
2015 | ||
920d2a44 | 2016 | static void |
ab821bc6 PA |
2017 | show_prompt (struct ui_file *file, int from_tty, |
2018 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
2019 | { |
2020 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
2021 | } | |
2022 | ||
3c216924 PA |
2023 | /* "set editing" command. */ |
2024 | ||
2025 | static void | |
eb4c3f4a | 2026 | set_editing (const char *args, int from_tty, struct cmd_list_element *c) |
3c216924 PA |
2027 | { |
2028 | change_line_handler (set_editing_cmd_var); | |
2029 | /* Update the control variable so that MI's =cmd-param-changed event | |
2030 | shows the correct value. */ | |
2031 | set_editing_cmd_var = current_ui->command_editing; | |
2032 | } | |
2033 | ||
920d2a44 | 2034 | static void |
3c216924 PA |
2035 | show_editing (struct ui_file *file, int from_tty, |
2036 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 2037 | { |
3e43a32a MS |
2038 | fprintf_filtered (file, _("Editing of command lines as " |
2039 | "they are typed is %s.\n"), | |
3c216924 | 2040 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
2041 | } |
2042 | ||
2043 | static void | |
2044 | show_annotation_level (struct ui_file *file, int from_tty, | |
2045 | struct cmd_list_element *c, const char *value) | |
2046 | { | |
2047 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
2048 | } | |
2049 | ||
2050 | static void | |
2051 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
2052 | struct cmd_list_element *c, const char *value) | |
2053 | { | |
3e43a32a MS |
2054 | fprintf_filtered (file, _("Notification of completion for " |
2055 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
2056 | value); |
2057 | } | |
6dea1fbd | 2058 | |
8d551b02 DE |
2059 | /* New values of the "data-directory" parameter are staged here. */ |
2060 | static char *staged_gdb_datadir; | |
2061 | ||
6dea1fbd JK |
2062 | /* "set" command for the gdb_datadir configuration variable. */ |
2063 | ||
2064 | static void | |
eb4c3f4a | 2065 | set_gdb_datadir (const char *args, int from_tty, struct cmd_list_element *c) |
6dea1fbd | 2066 | { |
8d551b02 | 2067 | set_gdb_data_directory (staged_gdb_datadir); |
76727919 | 2068 | gdb::observers::gdb_datadir_changed.notify (); |
6dea1fbd JK |
2069 | } |
2070 | ||
8d551b02 DE |
2071 | /* "show" command for the gdb_datadir configuration variable. */ |
2072 | ||
2073 | static void | |
2074 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
2075 | struct cmd_list_element *c, const char *value) | |
2076 | { | |
2077 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
f2aec7f6 | 2078 | gdb_datadir.c_str ()); |
8d551b02 DE |
2079 | } |
2080 | ||
97c85fc6 | 2081 | static void |
eb4c3f4a TT |
2082 | set_history_filename (const char *args, |
2083 | int from_tty, struct cmd_list_element *c) | |
97c85fc6 MB |
2084 | { |
2085 | /* We include the current directory so that if the user changes | |
2086 | directories the file written will be the same as the one | |
2087 | that was read. */ | |
2088 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
2089 | history_filename = reconcat (history_filename, current_directory, "/", | |
2090 | history_filename, (char *) NULL); | |
2091 | } | |
2092 | ||
7734102d EZ |
2093 | static void |
2094 | init_gdb_version_vars (void) | |
2095 | { | |
2096 | struct internalvar *major_version_var = create_internalvar ("_gdb_major"); | |
2097 | struct internalvar *minor_version_var = create_internalvar ("_gdb_minor"); | |
2098 | int vmajor = 0, vminor = 0, vrevision = 0; | |
2099 | sscanf (version, "%d.%d.%d", &vmajor, &vminor, &vrevision); | |
2100 | set_internalvar_integer (major_version_var, vmajor); | |
2101 | set_internalvar_integer (minor_version_var, vminor + (vrevision > 0)); | |
2102 | } | |
2103 | ||
9e0b60a8 | 2104 | static void |
fba45db2 | 2105 | init_main (void) |
9e0b60a8 | 2106 | { |
60eb5395 PA |
2107 | struct cmd_list_element *c; |
2108 | ||
ab821bc6 PA |
2109 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
2110 | the DEFAULT_PROMPT is. */ | |
2111 | set_prompt (DEFAULT_PROMPT); | |
2112 | ||
9e0b60a8 JM |
2113 | /* Set the important stuff up for command editing. */ |
2114 | command_editing_p = 1; | |
9e0b60a8 | 2115 | history_expansion_p = 0; |
452a569e | 2116 | write_history_p = 0; |
9e0b60a8 JM |
2117 | |
2118 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2119 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 2120 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 2121 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 2122 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2123 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2124 | rl_readline_name = "gdb"; |
7cb3ec5e | 2125 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2126 | |
467d8519 TT |
2127 | /* The name for this defun comes from Bash, where it originated. |
2128 | 15 is Control-o, the same binding this function has in Bash. */ | |
2129 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2130 | ||
4d28ad1e | 2131 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2132 | &top_prompt, |
590042fc PW |
2133 | _("Set gdb's prompt."), |
2134 | _("Show gdb's prompt."), | |
ab821bc6 PA |
2135 | NULL, NULL, |
2136 | show_prompt, | |
4d28ad1e | 2137 | &setlist, &showlist); |
9e0b60a8 | 2138 | |
1bedd215 | 2139 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2140 | Don't repeat this command.\nPrimarily \ |
2141 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2142 | hitting return.")); |
9e0b60a8 | 2143 | |
5bf193a2 | 2144 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2145 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2146 | Set editing of command lines as they are typed."), _("\ |
2147 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2148 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2149 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2150 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2151 | set_editing, |
2152 | show_editing, | |
5bf193a2 AC |
2153 | &setlist, &showlist); |
2154 | ||
2155 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2156 | Set saving of the history record on exit."), _("\ | |
2157 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2158 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2159 | Without an argument, saving is enabled."), |
2160 | NULL, | |
920d2a44 | 2161 | show_write_history_p, |
5bf193a2 | 2162 | &sethistlist, &showhistlist); |
9e0b60a8 | 2163 | |
ebfd00d2 PP |
2164 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2165 | &history_size_setshow_var, _("\ | |
590042fc PW |
2166 | Set the size of the command history."), _("\ |
2167 | Show the size of the command history."), _("\ | |
2168 | This is the number of previous commands to keep a record of.\n\ | |
f81d1120 PA |
2169 | If set to \"unlimited\", the number of commands kept in the history\n\ |
2170 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2171 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2172 | set_history_size_command, |
2173 | show_history_size, | |
2174 | &sethistlist, &showhistlist); | |
4d28ad1e | 2175 | |
fc637f04 PP |
2176 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2177 | &history_remove_duplicates, _("\ | |
2178 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2179 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2180 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2181 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2182 | entry, each time a new history entry is added.\n\ | |
2183 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2184 | Only history entries added during this session are considered for removal.\n\ | |
2185 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2186 | By default this option is set to 0."), | |
2187 | NULL, | |
2188 | show_history_remove_duplicates, | |
2189 | &sethistlist, &showhistlist); | |
2190 | ||
4d28ad1e | 2191 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
590042fc PW |
2192 | Set the filename in which to record the command history."), _("\ |
2193 | Show the filename in which to record the command history."), _("\ | |
4d28ad1e | 2194 | (the list of previous commands of which a record is kept)."), |
97c85fc6 | 2195 | set_history_filename, |
920d2a44 | 2196 | show_history_filename, |
4d28ad1e | 2197 | &sethistlist, &showhistlist); |
9e0b60a8 | 2198 | |
e360902b | 2199 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2200 | Set whether to confirm potentially dangerous operations."), _("\ |
2201 | Show whether to confirm potentially dangerous operations."), NULL, | |
2202 | NULL, | |
e360902b | 2203 | show_confirm, |
5bf193a2 | 2204 | &setlist, &showlist); |
9e0b60a8 | 2205 | |
85c07804 AC |
2206 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2207 | Set annotation_level."), _("\ | |
2208 | Show annotation_level."), _("\ | |
9e0b60a8 | 2209 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2210 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2211 | NULL, |
920d2a44 | 2212 | show_annotation_level, |
85c07804 | 2213 | &setlist, &showlist); |
362646f5 | 2214 | |
5bf193a2 AC |
2215 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2216 | &exec_done_display_p, _("\ | |
2217 | Set notification of completion for asynchronous execution commands."), _("\ | |
2218 | Show notification of completion for asynchronous execution commands."), _("\ | |
2219 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2220 | NULL, | |
920d2a44 | 2221 | show_exec_done_display_p, |
5bf193a2 | 2222 | &setlist, &showlist); |
b14b1491 TT |
2223 | |
2224 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2225 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2226 | _("Show GDB's data directory."), |
2227 | _("\ | |
2228 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2229 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2230 | &setlist, |
2231 | &showlist); | |
268a799a PA |
2232 | |
2233 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2234 | &interactive_mode, _("\ | |
2235 | Set whether GDB's standard input is a terminal."), _("\ | |
2236 | Show whether GDB's standard input is a terminal."), _("\ | |
2237 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2238 | means that GDB should wait for the user to answer queries associated to\n\ | |
2239 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2240 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2241 | If auto (the default), determine which mode to use based on the standard\n\ | |
2242 | input settings."), | |
2243 | NULL, | |
2244 | show_interactive_mode, | |
2245 | &setlist, &showlist); | |
60eb5395 PA |
2246 | |
2247 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
590042fc PW |
2248 | Create a new UI.\n\ |
2249 | Usage: new-ui INTERPRETER TTY\n\ | |
60eb5395 | 2250 | The first argument is the name of the interpreter to run.\n\ |
89549d7f | 2251 | The second argument is the terminal the UI runs on."), &cmdlist); |
60eb5395 | 2252 | set_cmd_completer (c, interpreter_completer); |
9e0b60a8 | 2253 | } |
64cdedad EZ |
2254 | |
2255 | void | |
2256 | gdb_init (char *argv0) | |
2257 | { | |
68bb5386 PW |
2258 | saved_command_line = xstrdup (""); |
2259 | previous_saved_command_line = xstrdup (""); | |
2260 | ||
64cdedad EZ |
2261 | if (pre_init_ui_hook) |
2262 | pre_init_ui_hook (); | |
2263 | ||
371d5dec | 2264 | /* Run the init function of each source file. */ |
64cdedad | 2265 | |
64cdedad EZ |
2266 | #ifdef __MSDOS__ |
2267 | /* Make sure we return to the original directory upon exit, come | |
2268 | what may, since the OS doesn't do that for us. */ | |
2269 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2270 | #endif | |
2271 | ||
371d5dec MS |
2272 | init_cmd_lists (); /* This needs to be done first. */ |
2273 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
9dea9163 | 2274 | |
24b73f8e PP |
2275 | init_page_info (); |
2276 | ||
9dea9163 | 2277 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2278 | initialize_all_files (); |
9dea9163 | 2279 | |
6c95b8df PA |
2280 | /* This creates the current_program_space. Do this after all the |
2281 | _initialize_foo routines have had a chance to install their | |
2282 | per-sspace data keys. Also do this before | |
2283 | initialize_current_architecture is called, because it accesses | |
2284 | exec_bfd of the current program space. */ | |
2285 | initialize_progspace (); | |
2286 | initialize_inferiors (); | |
64cdedad | 2287 | initialize_current_architecture (); |
371d5dec | 2288 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2289 | |
0ea3f30e DJ |
2290 | initialize_stdin_serial (); |
2291 | ||
6a06d660 PP |
2292 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2293 | to alter it. */ | |
2294 | set_initial_gdb_ttystate (); | |
2295 | ||
362646f5 | 2296 | async_init_signals (); |
64cdedad | 2297 | |
371d5dec MS |
2298 | /* We need a default language for parsing expressions, so simple |
2299 | things like "set width 0" won't fail if no language is explicitly | |
2300 | set in a config file or implicitly set by reading an executable | |
2301 | during startup. */ | |
64cdedad | 2302 | set_language (language_c); |
371d5dec | 2303 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2304 | |
6dddc817 | 2305 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2306 | installed. For example "info pretty-printer" needs the "info" |
2307 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2308 | script initialization here. */ |
2309 | finish_ext_lang_initialization (); | |
7734102d EZ |
2310 | |
2311 | /* Create $_gdb_major and $_gdb_minor convenience variables. */ | |
2312 | init_gdb_version_vars (); | |
64cdedad | 2313 | } |