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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 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" | |
c5aa993b | 37 | #include "terminal.h" /* For job_control. */ |
15652511 | 38 | #include "job-control.h" |
c906108c | 39 | #include "annotate.h" |
c5f0f3d0 | 40 | #include "completer.h" |
c906108c | 41 | #include "top.h" |
d4f3574e | 42 | #include "version.h" |
210661e7 | 43 | #include "serial.h" |
d16aafd8 | 44 | #include "doublest.h" |
f17517ea | 45 | #include "main.h" |
2e03ee74 | 46 | #include "event-loop.h" |
8ea051c5 | 47 | #include "gdbthread.h" |
6dddc817 | 48 | #include "extension.h" |
b4a14fd0 | 49 | #include "interps.h" |
6dea1fbd | 50 | #include "observer.h" |
bd712aed | 51 | #include "maint.h" |
97c85fc6 | 52 | #include "filenames.h" |
06096720 | 53 | #include "frame.h" |
7a3bde34 | 54 | #include "buffer.h" |
3212b858 | 55 | #include "gdb_select.h" |
c906108c | 56 | |
371d5dec | 57 | /* readline include files. */ |
dbda9972 AC |
58 | #include "readline/readline.h" |
59 | #include "readline/history.h" | |
c906108c SS |
60 | |
61 | /* readline defines this. */ | |
62 | #undef savestring | |
63 | ||
64 | #include <sys/types.h> | |
c906108c | 65 | |
c2c6d25f | 66 | #include "event-top.h" |
53ce3c39 | 67 | #include <sys/stat.h> |
c906108c | 68 | #include <ctype.h> |
8b93c638 JM |
69 | #include "ui-out.h" |
70 | #include "cli-out.h" | |
2f9d54cf | 71 | #include "tracepoint.h" |
93d6eb10 | 72 | #include "inf-loop.h" |
c906108c | 73 | |
18206ca3 PP |
74 | #if defined(TUI) |
75 | # include "tui/tui.h" | |
76 | #endif | |
77 | ||
60eb5395 PA |
78 | #ifndef O_NOCTTY |
79 | # define O_NOCTTY 0 | |
80 | #endif | |
81 | ||
ca7b0bbc TT |
82 | extern void initialize_all_files (void); |
83 | ||
95298e72 PM |
84 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
85 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
86 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
87 | ||
371d5dec | 88 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
89 | |
90 | #ifndef DEFAULT_PROMPT | |
91 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
92 | #endif |
93 | ||
79aa2fe8 PA |
94 | /* Generate a function that exports a pointer to a field of the |
95 | current UI. */ | |
96 | ||
97 | #define gen_ret_current_ui_field_ptr(type, name) \ | |
98 | type * \ | |
99 | current_ui_## name ## _ptr (void) \ | |
100 | { \ | |
101 | return ¤t_ui->m_ ## name; \ | |
102 | } | |
103 | ||
104 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdout) | |
105 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdin) | |
106 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stderr) | |
107 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdlog) | |
b6dcde57 | 108 | gen_ret_current_ui_field_ptr (struct ui_out *, current_uiout) |
79aa2fe8 | 109 | |
e655c1a2 | 110 | /* Initialization file name for gdb. This is host-dependent. */ |
eaae3919 | 111 | |
e655c1a2 | 112 | const char gdbinit[] = GDBINIT; |
c906108c SS |
113 | |
114 | int inhibit_gdbinit = 0; | |
115 | ||
c906108c SS |
116 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
117 | ||
050a2e1d PA |
118 | /* Flag for whether we want to confirm potentially dangerous |
119 | operations. Default is yes. */ | |
120 | ||
e360902b | 121 | int confirm = 1; |
c906108c | 122 | |
920d2a44 | 123 | static void |
e360902b | 124 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
125 | struct cmd_list_element *c, const char *value) |
126 | { | |
3e43a32a MS |
127 | fprintf_filtered (file, _("Whether to confirm potentially " |
128 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
129 | value); |
130 | } | |
c906108c | 131 | |
c906108c SS |
132 | /* Current working directory. */ |
133 | ||
134 | char *current_directory; | |
135 | ||
2669cade PA |
136 | /* The last command line executed on the console. Used for command |
137 | repetitions. */ | |
dc7eb48e | 138 | char *saved_command_line; |
c906108c SS |
139 | |
140 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 141 | affects things like recording into the command history, commands |
c906108c SS |
142 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
143 | whatever) can issue its own commands and also send along commands | |
144 | from the user, and have the user not notice that the user interface | |
145 | is issuing commands too. */ | |
146 | int server_command; | |
147 | ||
371d5dec | 148 | /* Timeout limit for response from target. */ |
c906108c | 149 | |
ce808e91 AC |
150 | /* The default value has been changed many times over the years. It |
151 | was originally 5 seconds. But that was thought to be a long time | |
152 | to sit and wait, so it was changed to 2 seconds. That was thought | |
153 | to be plenty unless the connection was going through some terminal | |
154 | server or multiplexer or other form of hairy serial connection. | |
155 | ||
156 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
157 | it began being used in other remote-* targets. It appears that the | |
158 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 159 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
160 | |
161 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
162 | 20 seconds is far worse. This demonstrates the difficulty of using | |
163 | a single variable for all protocol timeouts. | |
164 | ||
165 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 166 | back to 2 seconds in 1999. */ |
ce808e91 AC |
167 | |
168 | int remote_timeout = 2; | |
c906108c SS |
169 | |
170 | /* Non-zero tells remote* modules to output debugging info. */ | |
171 | ||
172 | int remote_debug = 0; | |
173 | ||
6dd77b81 RH |
174 | /* Sbrk location on entry to main. Used for statistics only. */ |
175 | #ifdef HAVE_SBRK | |
176 | char *lim_at_start; | |
177 | #endif | |
178 | ||
c906108c SS |
179 | /* Hooks for alternate command interfaces. */ |
180 | ||
371d5dec MS |
181 | /* This hook is called from within gdb's many mini-event loops which |
182 | could steal control from a real user interface's event loop. It | |
183 | returns non-zero if the user is requesting a detach, zero | |
184 | otherwise. */ | |
7a292a7a | 185 | |
98bbd631 | 186 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 187 | |
c906108c | 188 | |
c906108c SS |
189 | /* Called from print_frame_info to list the line we stopped in. */ |
190 | ||
371d5dec MS |
191 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
192 | int line, | |
193 | int stopline, | |
194 | int noerror); | |
c906108c SS |
195 | /* Replaces most of query. */ |
196 | ||
9a4105ab | 197 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
198 | |
199 | /* Replaces most of warning. */ | |
200 | ||
9a4105ab | 201 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 202 | |
9a4105ab AC |
203 | /* These three functions support getting lines of text from the user. |
204 | They are used in sequence. First deprecated_readline_begin_hook is | |
205 | called with a text string that might be (for example) a message for | |
206 | the user to type in a sequence of commands to be executed at a | |
207 | breakpoint. If this function calls back to a GUI, it might take | |
208 | this opportunity to pop up a text interaction window with this | |
209 | message. Next, deprecated_readline_hook is called with a prompt | |
210 | that is emitted prior to collecting the user input. It can be | |
211 | called multiple times. Finally, deprecated_readline_end_hook is | |
212 | called to notify the GUI that we are done with the interaction | |
213 | window and it can close it. */ | |
c906108c | 214 | |
a121b7c1 | 215 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 216 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 217 | void (*deprecated_readline_end_hook) (void); |
c906108c | 218 | |
6426a772 | 219 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 220 | to or detached from an already running process. */ |
6426a772 | 221 | |
9a4105ab AC |
222 | void (*deprecated_attach_hook) (void); |
223 | void (*deprecated_detach_hook) (void); | |
6426a772 | 224 | |
371d5dec MS |
225 | /* Called during long calculations to allow GUI to repair window |
226 | damage, and to check for stop buttons, etc... */ | |
c906108c | 227 | |
9a4105ab | 228 | void (*deprecated_interactive_hook) (void); |
c906108c | 229 | |
371d5dec MS |
230 | /* Called when going to wait for the target. Usually allows the GUI |
231 | to run while waiting for target events. */ | |
c906108c | 232 | |
9a4105ab | 233 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
234 | struct target_waitstatus *status, |
235 | int options); | |
c906108c | 236 | |
371d5dec MS |
237 | /* Used by UI as a wrapper around command execution. May do various |
238 | things like enabling/disabling buttons, etc... */ | |
c906108c | 239 | |
371d5dec MS |
240 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
241 | char *cmd, int from_tty); | |
c906108c SS |
242 | |
243 | /* Called when the current thread changes. Argument is thread id. */ | |
244 | ||
9a4105ab | 245 | void (*deprecated_context_hook) (int id); |
c906108c | 246 | |
98d9f24e PA |
247 | /* The highest UI number ever assigned. */ |
248 | static int highest_ui_num; | |
249 | ||
250 | /* See top.h. */ | |
251 | ||
252 | struct ui * | |
253 | new_ui (FILE *instream, FILE *outstream, FILE *errstream) | |
254 | { | |
255 | struct ui *ui; | |
256 | ||
257 | ui = XCNEW (struct ui); | |
258 | ||
259 | ui->num = ++highest_ui_num; | |
268a799a | 260 | ui->stdin_stream = instream; |
98d9f24e PA |
261 | ui->instream = instream; |
262 | ui->outstream = outstream; | |
263 | ui->errstream = errstream; | |
264 | ||
265 | ui->input_fd = fileno (ui->instream); | |
266 | ||
268a799a PA |
267 | ui->input_interactive_p = ISATTY (ui->instream); |
268 | ||
d7e74731 PA |
269 | ui->m_gdb_stdin = new stdio_file (ui->instream); |
270 | ui->m_gdb_stdout = new stdio_file (ui->outstream); | |
271 | ui->m_gdb_stderr = new stderr_file (ui->errstream); | |
98d9f24e PA |
272 | ui->m_gdb_stdlog = ui->m_gdb_stderr; |
273 | ||
274 | ui->prompt_state = PROMPT_NEEDED; | |
275 | ||
276 | if (ui_list == NULL) | |
277 | ui_list = ui; | |
278 | else | |
279 | { | |
280 | struct ui *last; | |
281 | ||
282 | for (last = ui_list; last->next != NULL; last = last->next) | |
283 | ; | |
284 | last->next = ui; | |
285 | } | |
286 | ||
287 | return ui; | |
288 | } | |
289 | ||
07169ff7 PA |
290 | static void |
291 | free_ui (struct ui *ui) | |
292 | { | |
d7e74731 PA |
293 | delete ui->m_gdb_stdin; |
294 | delete ui->m_gdb_stdout; | |
295 | delete ui->m_gdb_stderr; | |
07169ff7 PA |
296 | |
297 | xfree (ui); | |
298 | } | |
299 | ||
300 | void | |
301 | delete_ui (struct ui *todel) | |
302 | { | |
303 | struct ui *ui, *uiprev; | |
304 | ||
305 | uiprev = NULL; | |
306 | ||
307 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
308 | if (ui == todel) | |
309 | break; | |
310 | ||
311 | gdb_assert (ui != NULL); | |
312 | ||
313 | if (uiprev != NULL) | |
314 | uiprev->next = ui->next; | |
315 | else | |
316 | ui_list = ui->next; | |
317 | ||
318 | free_ui (ui); | |
319 | } | |
320 | ||
8194e927 SM |
321 | /* Cleanup that deletes a UI. */ |
322 | ||
323 | static void | |
324 | delete_ui_cleanup (void *void_ui) | |
325 | { | |
326 | struct ui *ui = (struct ui *) void_ui; | |
327 | ||
328 | delete_ui (ui); | |
329 | } | |
330 | ||
331 | /* See top.h. */ | |
332 | ||
333 | struct cleanup * | |
334 | make_delete_ui_cleanup (struct ui *ui) | |
335 | { | |
336 | return make_cleanup (delete_ui_cleanup, ui); | |
337 | } | |
338 | ||
60eb5395 PA |
339 | /* Open file named NAME for read/write, making sure not to make it the |
340 | controlling terminal. */ | |
341 | ||
6e7bc05c | 342 | static gdb_file_up |
60eb5395 PA |
343 | open_terminal_stream (const char *name) |
344 | { | |
345 | int fd; | |
346 | ||
6e7bc05c | 347 | fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0); |
60eb5395 PA |
348 | if (fd < 0) |
349 | perror_with_name (_("opening terminal failed")); | |
350 | ||
6e7bc05c | 351 | return gdb_file_up (fdopen (fd, "w+")); |
60eb5395 PA |
352 | } |
353 | ||
354 | /* Implementation of the "new-ui" command. */ | |
355 | ||
356 | static void | |
32faf971 | 357 | new_ui_command (const char *args, int from_tty) |
60eb5395 PA |
358 | { |
359 | struct ui *ui; | |
360 | struct interp *interp; | |
6e7bc05c | 361 | gdb_file_up stream[3]; |
60eb5395 PA |
362 | int i; |
363 | int res; | |
364 | int argc; | |
60eb5395 PA |
365 | const char *interpreter_name; |
366 | const char *tty_name; | |
8194e927 | 367 | struct cleanup *failure_chain; |
60eb5395 PA |
368 | |
369 | dont_repeat (); | |
370 | ||
773a1edc TT |
371 | gdb_argv argv (args); |
372 | argc = argv.count (); | |
60eb5395 PA |
373 | |
374 | if (argc < 2) | |
375 | error (_("usage: new-ui <interpreter> <tty>")); | |
376 | ||
377 | interpreter_name = argv[0]; | |
378 | tty_name = argv[1]; | |
379 | ||
4b6749b9 TT |
380 | { |
381 | scoped_restore save_ui = make_scoped_restore (¤t_ui); | |
8194e927 | 382 | |
4b6749b9 TT |
383 | /* Open specified terminal, once for each of |
384 | stdin/stdout/stderr. */ | |
385 | for (i = 0; i < 3; i++) | |
6e7bc05c | 386 | stream[i] = open_terminal_stream (tty_name); |
60eb5395 | 387 | |
6e7bc05c TT |
388 | ui = new_ui (stream[0].get (), stream[1].get (), stream[2].get ()); |
389 | failure_chain = make_cleanup (delete_ui_cleanup, ui); | |
60eb5395 | 390 | |
4b6749b9 | 391 | ui->async = 1; |
60eb5395 | 392 | |
4b6749b9 | 393 | current_ui = ui; |
60eb5395 | 394 | |
4b6749b9 | 395 | set_top_level_interpreter (interpreter_name); |
60eb5395 | 396 | |
4b6749b9 | 397 | interp_pre_command_loop (top_level_interpreter ()); |
60eb5395 | 398 | |
6e7bc05c TT |
399 | /* Make sure the files are not closed. */ |
400 | stream[0].release (); | |
401 | stream[1].release (); | |
402 | stream[2].release (); | |
403 | ||
4b6749b9 | 404 | discard_cleanups (failure_chain); |
4b6749b9 | 405 | } |
60eb5395 PA |
406 | |
407 | printf_unfiltered ("New UI allocated\n"); | |
408 | } | |
409 | ||
c906108c SS |
410 | /* Handler for SIGHUP. */ |
411 | ||
412 | #ifdef SIGHUP | |
392a587b | 413 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 414 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 415 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
416 | /* static */ void |
417 | quit_cover (void) | |
c906108c | 418 | { |
e360902b PA |
419 | /* Stop asking user for confirmation --- we're exiting. This |
420 | prevents asking the user dumb questions. */ | |
421 | confirm = 0; | |
c5aa993b | 422 | quit_command ((char *) 0, 0); |
c906108c SS |
423 | } |
424 | #endif /* defined SIGHUP */ | |
425 | \f | |
7a9dd1b2 | 426 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 427 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 428 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 429 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 430 | /* static */ int source_line_number; |
c906108c SS |
431 | |
432 | /* Name of the file we are sourcing. */ | |
392a587b | 433 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 434 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 435 | event-top.c into this file, top.c. */ |
05159abe | 436 | /* static */ const char *source_file_name; |
c906108c | 437 | |
c906108c SS |
438 | /* Read commands from STREAM. */ |
439 | void | |
fba45db2 | 440 | read_command_file (FILE *stream) |
c906108c | 441 | { |
f38d3ad1 | 442 | struct ui *ui = current_ui; |
c906108c | 443 | |
3c9ebddd TT |
444 | scoped_restore save_instream |
445 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
446 | |
447 | /* Read commands from `instream' and execute them until end of file | |
448 | or error reading instream. */ | |
449 | ||
f38d3ad1 | 450 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 PA |
451 | { |
452 | char *command; | |
453 | ||
454 | /* Get a command-line. This calls the readline package. */ | |
455 | command = command_line_input (NULL, 0, NULL); | |
456 | if (command == NULL) | |
457 | break; | |
458 | command_handler (command); | |
459 | } | |
c906108c SS |
460 | } |
461 | \f | |
507f3c78 | 462 | void (*pre_init_ui_hook) (void); |
c906108c | 463 | |
e41a3b1a | 464 | #ifdef __MSDOS__ |
70976b65 | 465 | static void |
e41a3b1a AC |
466 | do_chdir_cleanup (void *old_dir) |
467 | { | |
f515a1d6 | 468 | chdir ((const char *) old_dir); |
b8c9b27d | 469 | xfree (old_dir); |
e41a3b1a AC |
470 | } |
471 | #endif | |
472 | ||
028d0ed5 | 473 | struct cleanup * |
4e5d721f DE |
474 | prepare_execute_command (void) |
475 | { | |
028d0ed5 TJB |
476 | struct value *mark; |
477 | struct cleanup *cleanup; | |
478 | ||
479 | mark = value_mark (); | |
480 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 481 | |
371d5dec MS |
482 | /* With multiple threads running while the one we're examining is |
483 | stopped, the dcache can get stale without us being able to detect | |
484 | it. For the duration of the command, though, use the dcache to | |
485 | help things like backtrace. */ | |
4e5d721f DE |
486 | if (non_stop) |
487 | target_dcache_invalidate (); | |
028d0ed5 TJB |
488 | |
489 | return cleanup; | |
4e5d721f DE |
490 | } |
491 | ||
77cce10f PA |
492 | /* Tell the user if the language has changed (except first time) after |
493 | executing a command. */ | |
494 | ||
495 | void | |
496 | check_frame_language_change (void) | |
497 | { | |
498 | static int warned = 0; | |
7ff38b1c | 499 | struct frame_info *frame; |
77cce10f PA |
500 | |
501 | /* First make sure that a new frame has been selected, in case the | |
502 | command or the hooks changed the program state. */ | |
7ff38b1c | 503 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
504 | if (current_language != expected_language) |
505 | { | |
506 | if (language_mode == language_mode_auto && info_verbose) | |
507 | { | |
508 | language_info (1); /* Print what changed. */ | |
509 | } | |
510 | warned = 0; | |
511 | } | |
512 | ||
513 | /* Warn the user if the working language does not match the language | |
514 | of the current frame. Only warn the user if we are actually | |
515 | running the program, i.e. there is a stack. */ | |
516 | /* FIXME: This should be cacheing the frame and only running when | |
517 | the frame changes. */ | |
518 | ||
519 | if (has_stack_frames ()) | |
520 | { | |
521 | enum language flang; | |
522 | ||
7ff38b1c | 523 | flang = get_frame_language (frame); |
77cce10f PA |
524 | if (!warned |
525 | && flang != language_unknown | |
526 | && flang != current_language->la_language) | |
527 | { | |
528 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
529 | warned = 1; | |
530 | } | |
531 | } | |
532 | } | |
533 | ||
98880d46 PA |
534 | /* See top.h. */ |
535 | ||
0b333c5e PA |
536 | void |
537 | wait_sync_command_done (void) | |
538 | { | |
4295e285 | 539 | /* Processing events may change the current UI. */ |
4b6749b9 | 540 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
541 | struct ui *ui = current_ui; |
542 | ||
0b333c5e | 543 | while (gdb_do_one_event () >= 0) |
4295e285 | 544 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
545 | break; |
546 | } | |
547 | ||
548 | /* See top.h. */ | |
549 | ||
98880d46 PA |
550 | void |
551 | maybe_wait_sync_command_done (int was_sync) | |
552 | { | |
553 | /* If the interpreter is in sync mode (we're running a user | |
554 | command's list, running command hooks or similars), and we | |
555 | just ran a synchronous command that started the target, wait | |
556 | for that command to end. */ | |
3b12939d PA |
557 | if (!current_ui->async |
558 | && !was_sync | |
559 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 560 | wait_sync_command_done (); |
98880d46 PA |
561 | } |
562 | ||
648bf667 | 563 | /* Execute the line P as a command, in the current user context. |
d318976c | 564 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 565 | |
d318976c FN |
566 | void |
567 | execute_command (char *p, int from_tty) | |
c906108c | 568 | { |
353d1d73 | 569 | struct cleanup *cleanup_if_error, *cleanup; |
52f0bd74 | 570 | struct cmd_list_element *c; |
d318976c | 571 | char *line; |
4e5d721f | 572 | |
353d1d73 | 573 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
028d0ed5 | 574 | cleanup = prepare_execute_command (); |
c906108c | 575 | |
d318976c FN |
576 | /* Force cleanup of any alloca areas if using C alloca instead of |
577 | a builtin alloca. */ | |
578 | alloca (0); | |
c906108c | 579 | |
d318976c FN |
580 | /* This can happen when command_line_input hits end of file. */ |
581 | if (p == NULL) | |
5fe41fbf TT |
582 | { |
583 | do_cleanups (cleanup); | |
5ae85e44 | 584 | discard_cleanups (cleanup_if_error); |
5fe41fbf TT |
585 | return; |
586 | } | |
c906108c | 587 | |
49d03eab | 588 | target_log_command (p); |
8b93c638 | 589 | |
d318976c FN |
590 | while (*p == ' ' || *p == '\t') |
591 | p++; | |
592 | if (*p) | |
8b93c638 | 593 | { |
6f937416 | 594 | const char *cmd = p; |
d318976c | 595 | char *arg; |
3b12939d | 596 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 597 | |
d318976c | 598 | line = p; |
8b93c638 | 599 | |
16026cd7 AS |
600 | /* If trace-commands is set then this will print this command. */ |
601 | print_command_trace (p); | |
602 | ||
6f937416 PA |
603 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
604 | p = (char *) cmd; | |
8b93c638 | 605 | |
d318976c FN |
606 | /* Pass null arg rather than an empty one. */ |
607 | arg = *p ? p : 0; | |
8b93c638 | 608 | |
9f60d481 AC |
609 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
610 | while the is_complete_command(cfunc) test is just plain | |
611 | bogus. They should both be replaced by a test of the form | |
612 | c->strip_trailing_white_space_p. */ | |
613 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
614 | can't be replaced with func. This is because it is the | |
615 | cfunc, and not the func, that has the value that the | |
616 | is_complete_command hack is testing for. */ | |
617 | /* Clear off trailing whitespace, except for set and complete | |
618 | command. */ | |
d318976c FN |
619 | if (arg |
620 | && c->type != set_cmd | |
bbaca940 | 621 | && !is_complete_command (c)) |
8b93c638 | 622 | { |
d318976c FN |
623 | p = arg + strlen (arg) - 1; |
624 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
625 | p--; | |
626 | *(p + 1) = '\0'; | |
8b93c638 JM |
627 | } |
628 | ||
371d5dec | 629 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 630 | execute_cmd_pre_hook (c); |
c906108c | 631 | |
1f2bdf09 | 632 | if (c->deprecated_warn_user) |
6f937416 | 633 | deprecated_cmd_warning (line); |
c906108c | 634 | |
7d74f244 | 635 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 636 | if (c->theclass == class_user && c->user_commands) |
d318976c | 637 | execute_user_command (c, arg); |
5b9afe8a YQ |
638 | else if (c->type == set_cmd) |
639 | do_set_command (arg, from_tty, c); | |
640 | else if (c->type == show_cmd) | |
641 | do_show_command (arg, from_tty, c); | |
f436dd25 | 642 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 643 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 644 | else if (deprecated_call_command_hook) |
050a2e1d | 645 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 646 | else |
050a2e1d | 647 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 648 | |
98880d46 | 649 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 650 | |
371d5dec | 651 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 652 | execute_cmd_post_hook (c); |
c906108c | 653 | |
c906108c SS |
654 | } |
655 | ||
77cce10f | 656 | check_frame_language_change (); |
028d0ed5 | 657 | |
353d1d73 JK |
658 | do_cleanups (cleanup); |
659 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
660 | } |
661 | ||
5da1313b JK |
662 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
663 | returned string, do not display it to the screen. BATCH_FLAG will be | |
664 | temporarily set to true. */ | |
665 | ||
db1ec11f | 666 | std::string |
5da1313b JK |
667 | execute_command_to_string (char *p, int from_tty) |
668 | { | |
5da1313b JK |
669 | /* GDB_STDOUT should be better already restored during these |
670 | restoration callbacks. */ | |
b95de2b7 | 671 | set_batch_flag_and_restore_page_info save_page_info; |
5da1313b | 672 | |
b7b633e9 | 673 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 674 | |
d7e74731 | 675 | string_file str_file; |
5da1313b | 676 | |
ca5909c7 TT |
677 | { |
678 | current_uiout->redirect (&str_file); | |
679 | ui_out_redirect_pop redirect_popper (current_uiout); | |
680 | ||
681 | scoped_restore save_stdout | |
682 | = make_scoped_restore (&gdb_stdout, &str_file); | |
683 | scoped_restore save_stderr | |
684 | = make_scoped_restore (&gdb_stderr, &str_file); | |
685 | scoped_restore save_stdlog | |
686 | = make_scoped_restore (&gdb_stdlog, &str_file); | |
687 | scoped_restore save_stdtarg | |
688 | = make_scoped_restore (&gdb_stdtarg, &str_file); | |
689 | scoped_restore save_stdtargerr | |
690 | = make_scoped_restore (&gdb_stdtargerr, &str_file); | |
691 | ||
692 | execute_command (p, from_tty); | |
693 | } | |
5da1313b | 694 | |
d7e74731 | 695 | return std::move (str_file.string ()); |
5da1313b JK |
696 | } |
697 | ||
d318976c | 698 | \f |
47a80e90 TT |
699 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
700 | set via prevent_dont_repeat. */ | |
701 | ||
702 | static int suppress_dont_repeat = 0; | |
703 | ||
d318976c | 704 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 705 | |
d318976c FN |
706 | void |
707 | dont_repeat (void) | |
9e0b60a8 | 708 | { |
f38d3ad1 PA |
709 | struct ui *ui = current_ui; |
710 | ||
47a80e90 | 711 | if (suppress_dont_repeat || server_command) |
d318976c | 712 | return; |
9e0b60a8 | 713 | |
d318976c | 714 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
715 | thing read from stdin in line and don't want to delete it. Null |
716 | lines won't repeat here in any case. */ | |
268a799a | 717 | if (ui->instream == ui->stdin_stream) |
dc7eb48e | 718 | *saved_command_line = 0; |
9e0b60a8 | 719 | } |
47a80e90 TT |
720 | |
721 | /* Prevent dont_repeat from working, and return a cleanup that | |
722 | restores the previous state. */ | |
723 | ||
1ac32117 | 724 | scoped_restore_tmpl<int> |
47a80e90 TT |
725 | prevent_dont_repeat (void) |
726 | { | |
1ac32117 | 727 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
728 | } |
729 | ||
d318976c FN |
730 | \f |
731 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 732 | |
7a3bde34 | 733 | It prints PROMPT once at the start. |
d318976c FN |
734 | Action is compatible with "readline", e.g. space for the result is |
735 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 736 | |
d318976c | 737 | A NULL return means end of file. */ |
c5c136ea PA |
738 | |
739 | static char * | |
7a3bde34 | 740 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 741 | { |
7a3bde34 | 742 | struct buffer line_buffer; |
f38d3ad1 | 743 | struct ui *ui = current_ui; |
3212b858 PA |
744 | /* Read from stdin if we are executing a user defined command. This |
745 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 746 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 747 | int fd = fileno (stream); |
9e0b60a8 | 748 | |
7a3bde34 PA |
749 | buffer_init (&line_buffer); |
750 | ||
751 | if (prompt != NULL) | |
9e0b60a8 | 752 | { |
d318976c FN |
753 | /* Don't use a _filtered function here. It causes the assumed |
754 | character position to be off, since the newline we read from | |
755 | the user is not accounted for. */ | |
7a3bde34 | 756 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
757 | gdb_flush (gdb_stdout); |
758 | } | |
759 | ||
9e0b60a8 JM |
760 | while (1) |
761 | { | |
7a3bde34 | 762 | int c; |
3212b858 PA |
763 | int numfds; |
764 | fd_set readfds; | |
7a3bde34 | 765 | |
3212b858 PA |
766 | QUIT; |
767 | ||
768 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 769 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
770 | FD_ZERO (&readfds); |
771 | FD_SET (fd, &readfds); | |
f0881b37 | 772 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
773 | { |
774 | if (errno == EINTR) | |
775 | { | |
776 | /* If this was ctrl-c, the QUIT above handles it. */ | |
777 | continue; | |
778 | } | |
779 | perror_with_name (("select")); | |
780 | } | |
781 | ||
782 | c = fgetc (stream); | |
9e0b60a8 | 783 | |
d318976c | 784 | if (c == EOF) |
9e0b60a8 | 785 | { |
7a3bde34 | 786 | if (line_buffer.used_size > 0) |
d318976c FN |
787 | /* The last line does not end with a newline. Return it, and |
788 | if we are called again fgetc will still return EOF and | |
789 | we'll return NULL then. */ | |
9e0b60a8 | 790 | break; |
7a3bde34 | 791 | xfree (buffer_finish (&line_buffer)); |
d318976c | 792 | return NULL; |
9e0b60a8 | 793 | } |
c5aa993b | 794 | |
d318976c | 795 | if (c == '\n') |
9e0b60a8 | 796 | { |
7a3bde34 PA |
797 | if (line_buffer.used_size > 0 |
798 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
799 | line_buffer.used_size--; | |
d318976c | 800 | break; |
9e0b60a8 | 801 | } |
9e0b60a8 | 802 | |
7a3bde34 | 803 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
804 | } |
805 | ||
7a3bde34 PA |
806 | buffer_grow_char (&line_buffer, '\0'); |
807 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
808 | } |
809 | ||
d318976c FN |
810 | /* Variables which control command line editing and history |
811 | substitution. These variables are given default values at the end | |
812 | of this file. */ | |
813 | static int command_editing_p; | |
920d2a44 | 814 | |
d318976c FN |
815 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
816 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 817 | event-top.c into this file, top.c. */ |
920d2a44 | 818 | |
d318976c | 819 | /* static */ int history_expansion_p; |
920d2a44 | 820 | |
d318976c | 821 | static int write_history_p; |
920d2a44 AC |
822 | static void |
823 | show_write_history_p (struct ui_file *file, int from_tty, | |
824 | struct cmd_list_element *c, const char *value) | |
825 | { | |
826 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
827 | value); | |
828 | } | |
829 | ||
840a9a1f | 830 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
831 | command. The value -1 means unlimited, and -2 means undefined. */ |
832 | static int history_size_setshow_var = -2; | |
840a9a1f | 833 | |
920d2a44 AC |
834 | static void |
835 | show_history_size (struct ui_file *file, int from_tty, | |
836 | struct cmd_list_element *c, const char *value) | |
837 | { | |
838 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
839 | value); | |
840 | } | |
841 | ||
fc637f04 PP |
842 | /* Variable associated with the "history remove-duplicates" option. |
843 | The value -1 means unlimited. */ | |
844 | static int history_remove_duplicates = 0; | |
845 | ||
846 | static void | |
847 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
848 | struct cmd_list_element *c, const char *value) | |
849 | { | |
850 | fprintf_filtered (file, | |
851 | _("The number of history entries to look back at for " | |
852 | "duplicates is %s.\n"), | |
853 | value); | |
854 | } | |
855 | ||
d318976c | 856 | static char *history_filename; |
920d2a44 AC |
857 | static void |
858 | show_history_filename (struct ui_file *file, int from_tty, | |
859 | struct cmd_list_element *c, const char *value) | |
860 | { | |
3e43a32a MS |
861 | fprintf_filtered (file, _("The filename in which to record " |
862 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
863 | value); |
864 | } | |
9e0b60a8 | 865 | |
b4f5539f | 866 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 867 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
868 | a single gdb invocation. At the ordinary top-level prompt we might |
869 | be using the async readline. That means we can't use | |
870 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
871 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
872 | `define'), gdb wants a synchronous response. |
873 | ||
874 | We used to call readline() directly, running it in synchronous | |
875 | mode. But mixing modes this way is not supported, and as of | |
876 | readline 5.x it no longer works; the arrow keys come unbound during | |
877 | the synchronous call. So we make a nested call into the event | |
878 | loop. That's what gdb_readline_wrapper is for. */ | |
879 | ||
880 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
881 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
882 | the user types Control-D for EOF. */ | |
883 | static int gdb_readline_wrapper_done; | |
884 | ||
885 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
886 | is seen. */ | |
887 | static char *gdb_readline_wrapper_result; | |
888 | ||
889 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
890 | to be called after the newline is processed (which will redisplay | |
891 | the prompt). But in gdb_readline_wrapper we will not get a new | |
892 | prompt until the next call, or until we return to the event loop. | |
893 | So we disable this hook around the newline and restore it before we | |
894 | return. */ | |
895 | static void (*saved_after_char_processing_hook) (void); | |
896 | ||
948578a9 | 897 | |
948578a9 PP |
898 | /* See top.h. */ |
899 | ||
900 | int | |
dbf30ca3 | 901 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 902 | { |
dbf30ca3 | 903 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
904 | } |
905 | ||
906 | ||
2e03ee74 DJ |
907 | /* This function is called when readline has seen a complete line of |
908 | text. */ | |
909 | ||
910 | static void | |
911 | gdb_readline_wrapper_line (char *line) | |
912 | { | |
913 | gdb_assert (!gdb_readline_wrapper_done); | |
914 | gdb_readline_wrapper_result = line; | |
915 | gdb_readline_wrapper_done = 1; | |
916 | ||
917 | /* Prevent operate-and-get-next from acting too early. */ | |
918 | saved_after_char_processing_hook = after_char_processing_hook; | |
919 | after_char_processing_hook = NULL; | |
1b05479a DJ |
920 | |
921 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 922 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
923 | reinstall the callback handler, which puts the terminal in raw |
924 | mode (or in readline lingo, in prepped state), when we're next | |
925 | ready to process user input, either in display_gdb_prompt, or if | |
926 | we're handling an asynchronous target event and running in the | |
927 | background, just before returning to the event loop to process | |
928 | further input (or more target events). */ | |
3c216924 | 929 | if (current_ui->command_editing) |
d3d4baed | 930 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
931 | } |
932 | ||
933 | struct gdb_readline_wrapper_cleanup | |
934 | { | |
935 | void (*handler_orig) (char *); | |
2e03ee74 | 936 | int already_prompted_orig; |
93d6eb10 PA |
937 | |
938 | /* Whether the target was async. */ | |
939 | int target_is_async_orig; | |
2e03ee74 DJ |
940 | }; |
941 | ||
942 | static void | |
943 | gdb_readline_wrapper_cleanup (void *arg) | |
944 | { | |
a74e1786 | 945 | struct ui *ui = current_ui; |
19ba03f4 SM |
946 | struct gdb_readline_wrapper_cleanup *cleanup |
947 | = (struct gdb_readline_wrapper_cleanup *) arg; | |
2e03ee74 | 948 | |
3c216924 PA |
949 | if (ui->command_editing) |
950 | rl_already_prompted = cleanup->already_prompted_orig; | |
2e03ee74 | 951 | |
a74e1786 PA |
952 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
953 | ui->input_handler = cleanup->handler_orig; | |
0017922d | 954 | |
d3d4baed PA |
955 | /* Don't restore our input handler in readline yet. That would make |
956 | readline prep the terminal (putting it in raw mode), while the | |
957 | line we just read may trigger execution of a command that expects | |
958 | the terminal in the default cooked/canonical mode, such as e.g., | |
959 | running Python's interactive online help utility. See | |
960 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
0017922d | 961 | |
2e03ee74 DJ |
962 | gdb_readline_wrapper_result = NULL; |
963 | gdb_readline_wrapper_done = 0; | |
dbf30ca3 PA |
964 | ui->secondary_prompt_depth--; |
965 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
2e03ee74 DJ |
966 | |
967 | after_char_processing_hook = saved_after_char_processing_hook; | |
968 | saved_after_char_processing_hook = NULL; | |
969 | ||
93d6eb10 | 970 | if (cleanup->target_is_async_orig) |
6a3753b3 | 971 | target_async (1); |
93d6eb10 | 972 | |
2e03ee74 DJ |
973 | xfree (cleanup); |
974 | } | |
975 | ||
b4f5539f | 976 | char * |
38bcc89d | 977 | gdb_readline_wrapper (const char *prompt) |
b4f5539f | 978 | { |
a74e1786 | 979 | struct ui *ui = current_ui; |
2e03ee74 DJ |
980 | struct cleanup *back_to; |
981 | struct gdb_readline_wrapper_cleanup *cleanup; | |
982 | char *retval; | |
983 | ||
8d749320 | 984 | cleanup = XNEW (struct gdb_readline_wrapper_cleanup); |
a74e1786 PA |
985 | cleanup->handler_orig = ui->input_handler; |
986 | ui->input_handler = gdb_readline_wrapper_line; | |
2e03ee74 | 987 | |
3c216924 PA |
988 | if (ui->command_editing) |
989 | cleanup->already_prompted_orig = rl_already_prompted; | |
990 | else | |
991 | cleanup->already_prompted_orig = 0; | |
2e03ee74 | 992 | |
93d6eb10 PA |
993 | cleanup->target_is_async_orig = target_is_async_p (); |
994 | ||
dbf30ca3 | 995 | ui->secondary_prompt_depth++; |
2e03ee74 DJ |
996 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); |
997 | ||
4295e285 | 998 | /* Processing events may change the current UI. */ |
4b6749b9 | 999 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 | 1000 | |
93d6eb10 | 1001 | if (cleanup->target_is_async_orig) |
6a3753b3 | 1002 | target_async (0); |
93d6eb10 | 1003 | |
6e5d74e7 PA |
1004 | /* Display our prompt and prevent double prompt display. Don't pass |
1005 | down a NULL prompt, since that has special meaning for | |
1006 | display_gdb_prompt -- it indicates a request to print the primary | |
1007 | prompt, while we want a secondary prompt here. */ | |
1008 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
1009 | if (ui->command_editing) |
1010 | rl_already_prompted = 1; | |
2e03ee74 | 1011 | |
362646f5 | 1012 | if (after_char_processing_hook) |
2e03ee74 DJ |
1013 | (*after_char_processing_hook) (); |
1014 | gdb_assert (after_char_processing_hook == NULL); | |
1015 | ||
e0dd0826 | 1016 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1017 | if (gdb_readline_wrapper_done) |
1018 | break; | |
b4f5539f | 1019 | |
2e03ee74 DJ |
1020 | retval = gdb_readline_wrapper_result; |
1021 | do_cleanups (back_to); | |
1022 | return retval; | |
b4f5539f TT |
1023 | } |
1024 | ||
9e0b60a8 | 1025 | \f |
467d8519 TT |
1026 | /* The current saved history number from operate-and-get-next. |
1027 | This is -1 if not valid. */ | |
1028 | static int operate_saved_history = -1; | |
1029 | ||
1030 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1031 | do its work. */ | |
b9362cc7 | 1032 | static void |
5ae5f592 | 1033 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1034 | { |
1035 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1036 | |
467d8519 TT |
1037 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1038 | rl_get_previous_history (delta, 0); | |
1039 | operate_saved_history = -1; | |
1040 | ||
1041 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1042 | rl_redisplay (); |
467d8519 TT |
1043 | |
1044 | after_char_processing_hook = NULL; | |
1045 | rl_pre_input_hook = NULL; | |
1046 | } | |
1047 | ||
1048 | /* This is a gdb-local readline command handler. It accepts the | |
1049 | current command line (like RET does) and, if this command was taken | |
1050 | from the history, arranges for the next command in the history to | |
1051 | appear on the command line when the prompt returns. | |
1052 | We ignore the arguments. */ | |
1053 | static int | |
1054 | gdb_rl_operate_and_get_next (int count, int key) | |
1055 | { | |
b5686e99 MK |
1056 | int where; |
1057 | ||
362646f5 AC |
1058 | /* Use the async hook. */ |
1059 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1060 | |
b5686e99 MK |
1061 | /* Find the current line, and find the next line to use. */ |
1062 | where = where_history(); | |
1063 | ||
1fb2e2b5 PA |
1064 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1065 | || (where >= history_length - 1)) | |
b5686e99 MK |
1066 | operate_saved_history = where; |
1067 | else | |
1068 | operate_saved_history = where + 1; | |
1069 | ||
467d8519 TT |
1070 | return rl_newline (1, key); |
1071 | } | |
08b13bdd PP |
1072 | |
1073 | /* Number of user commands executed during this session. */ | |
1074 | ||
1075 | static int command_count = 0; | |
1076 | ||
1077 | /* Add the user command COMMAND to the input history list. */ | |
1078 | ||
1079 | void | |
1080 | gdb_add_history (const char *command) | |
1081 | { | |
08b13bdd | 1082 | command_count++; |
fc637f04 PP |
1083 | |
1084 | if (history_remove_duplicates != 0) | |
1085 | { | |
1086 | int lookbehind; | |
1087 | int lookbehind_threshold; | |
1088 | ||
1089 | /* The lookbehind threshold for finding a duplicate history entry is | |
1090 | bounded by command_count because we can't meaningfully delete | |
1091 | history entries that are already stored in the history file since | |
1092 | the history file is appended to. */ | |
1093 | if (history_remove_duplicates == -1 | |
1094 | || history_remove_duplicates > command_count) | |
1095 | lookbehind_threshold = command_count; | |
1096 | else | |
1097 | lookbehind_threshold = history_remove_duplicates; | |
1098 | ||
1099 | using_history (); | |
1100 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1101 | { | |
1102 | HIST_ENTRY *temp = previous_history (); | |
1103 | ||
1104 | if (temp == NULL) | |
1105 | break; | |
1106 | ||
1107 | if (strcmp (temp->line, command) == 0) | |
1108 | { | |
1109 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1110 | command_count--; | |
1111 | free_history_entry (prev); | |
1112 | break; | |
1113 | } | |
1114 | } | |
1115 | using_history (); | |
1116 | } | |
1117 | ||
1118 | add_history (command); | |
08b13bdd PP |
1119 | } |
1120 | ||
1121 | /* Safely append new history entries to the history file in a corruption-free | |
1122 | way using an intermediate local history file. */ | |
1123 | ||
1124 | static void | |
1125 | gdb_safe_append_history (void) | |
1126 | { | |
1127 | int ret, saved_errno; | |
1128 | char *local_history_filename; | |
1129 | struct cleanup *old_chain; | |
1130 | ||
1131 | local_history_filename | |
b196bc4c | 1132 | = xstrprintf ("%s-gdb%ld~", history_filename, (long) getpid ()); |
08b13bdd PP |
1133 | old_chain = make_cleanup (xfree, local_history_filename); |
1134 | ||
1135 | ret = rename (history_filename, local_history_filename); | |
1136 | saved_errno = errno; | |
1137 | if (ret < 0 && saved_errno != ENOENT) | |
1138 | { | |
1139 | warning (_("Could not rename %s to %s: %s"), | |
1140 | history_filename, local_history_filename, | |
1141 | safe_strerror (saved_errno)); | |
1142 | } | |
1143 | else | |
1144 | { | |
1145 | if (ret < 0) | |
1146 | { | |
1147 | /* If the rename failed with ENOENT then either the global history | |
1148 | file never existed in the first place or another GDB process is | |
1149 | currently appending to it (and has thus temporarily renamed it). | |
1150 | Since we can't distinguish between these two cases, we have to | |
1151 | conservatively assume the first case and therefore must write out | |
1152 | (not append) our known history to our local history file and try | |
1153 | to move it back anyway. Otherwise a global history file would | |
1154 | never get created! */ | |
1155 | gdb_assert (saved_errno == ENOENT); | |
1156 | write_history (local_history_filename); | |
1157 | } | |
1158 | else | |
1159 | { | |
1160 | append_history (command_count, local_history_filename); | |
2093d2d3 PP |
1161 | if (history_is_stifled ()) |
1162 | history_truncate_file (local_history_filename, history_max_entries); | |
08b13bdd PP |
1163 | } |
1164 | ||
1165 | ret = rename (local_history_filename, history_filename); | |
1166 | saved_errno = errno; | |
1167 | if (ret < 0 && saved_errno != EEXIST) | |
1168 | warning (_("Could not rename %s to %s: %s"), | |
1169 | local_history_filename, history_filename, | |
1170 | safe_strerror (saved_errno)); | |
1171 | } | |
1172 | ||
1173 | do_cleanups (old_chain); | |
1174 | } | |
1175 | ||
b69d38af PA |
1176 | /* Read one line from the command input stream `instream' into a local |
1177 | static buffer. The buffer is made bigger as necessary. Returns | |
1178 | the address of the start of the line. | |
9e0b60a8 | 1179 | |
d318976c | 1180 | NULL is returned for end of file. |
9e0b60a8 | 1181 | |
268a799a | 1182 | *If* input is from an interactive stream (stdin), the line read is |
b69d38af PA |
1183 | copied into the global 'saved_command_line' so that it can be |
1184 | repeated. | |
9e0b60a8 | 1185 | |
b69d38af PA |
1186 | This routine either uses fancy command line editing or simple input |
1187 | as the user has requested. */ | |
10689f25 | 1188 | |
d318976c | 1189 | char * |
a121b7c1 PA |
1190 | command_line_input (const char *prompt_arg, int repeat, |
1191 | const char *annotation_suffix) | |
9e0b60a8 | 1192 | { |
b69d38af PA |
1193 | static struct buffer cmd_line_buffer; |
1194 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1195 | struct ui *ui = current_ui; |
38bcc89d | 1196 | const char *prompt = prompt_arg; |
b69d38af | 1197 | char *cmd; |
268a799a | 1198 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1199 | |
1200 | /* The annotation suffix must be non-NULL. */ | |
1201 | if (annotation_suffix == NULL) | |
1202 | annotation_suffix = ""; | |
9e0b60a8 | 1203 | |
268a799a | 1204 | if (from_tty && annotation_level > 1) |
d318976c | 1205 | { |
38bcc89d SM |
1206 | char *local_prompt; |
1207 | ||
224c3ddb SM |
1208 | local_prompt |
1209 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1210 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1211 | if (prompt == NULL) |
d318976c FN |
1212 | local_prompt[0] = '\0'; |
1213 | else | |
38bcc89d | 1214 | strcpy (local_prompt, prompt); |
d318976c FN |
1215 | strcat (local_prompt, "\n\032\032"); |
1216 | strcat (local_prompt, annotation_suffix); | |
1217 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1218 | |
1219 | prompt = local_prompt; | |
d318976c | 1220 | } |
9e0b60a8 | 1221 | |
b69d38af | 1222 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1223 | { |
b69d38af PA |
1224 | buffer_init (&cmd_line_buffer); |
1225 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1226 | } |
9e0b60a8 | 1227 | |
b69d38af PA |
1228 | /* Starting a new command line. */ |
1229 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1230 | |
d318976c FN |
1231 | #ifdef STOP_SIGNAL |
1232 | if (job_control) | |
362646f5 | 1233 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
1234 | #endif |
1235 | ||
1236 | while (1) | |
9e0b60a8 | 1237 | { |
b69d38af PA |
1238 | char *rl; |
1239 | ||
371d5dec MS |
1240 | /* Make sure that all output has been output. Some machines may |
1241 | let you get away with leaving out some of the gdb_flush, but | |
1242 | not all. */ | |
d318976c FN |
1243 | wrap_here (""); |
1244 | gdb_flush (gdb_stdout); | |
1245 | gdb_flush (gdb_stderr); | |
1246 | ||
1247 | if (source_file_name != NULL) | |
637537d0 | 1248 | ++source_line_number; |
d318976c | 1249 | |
268a799a | 1250 | if (from_tty && annotation_level > 1) |
d318976c | 1251 | { |
306d9ac5 DC |
1252 | puts_unfiltered ("\n\032\032pre-"); |
1253 | puts_unfiltered (annotation_suffix); | |
1254 | puts_unfiltered ("\n"); | |
d318976c FN |
1255 | } |
1256 | ||
1257 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1258 | if (deprecated_readline_hook |
1259 | && from_tty | |
1260 | && input_interactive_p (current_ui)) | |
d318976c | 1261 | { |
38bcc89d | 1262 | rl = (*deprecated_readline_hook) (prompt); |
d318976c | 1263 | } |
268a799a PA |
1264 | else if (command_editing_p |
1265 | && from_tty | |
1266 | && input_interactive_p (current_ui)) | |
d318976c | 1267 | { |
38bcc89d | 1268 | rl = gdb_readline_wrapper (prompt); |
d318976c | 1269 | } |
9e0b60a8 | 1270 | else |
d318976c | 1271 | { |
c5c136ea | 1272 | rl = gdb_readline_no_editing (prompt); |
d318976c | 1273 | } |
9e0b60a8 | 1274 | |
b69d38af PA |
1275 | cmd = handle_line_of_input (&cmd_line_buffer, rl, |
1276 | repeat, annotation_suffix); | |
1277 | if (cmd == (char *) EOF) | |
d318976c | 1278 | { |
b69d38af | 1279 | cmd = NULL; |
d318976c | 1280 | break; |
9e0b60a8 | 1281 | } |
b69d38af | 1282 | if (cmd != NULL) |
d318976c | 1283 | break; |
9e0b60a8 | 1284 | |
6e5d74e7 PA |
1285 | /* Got partial input. I.e., got a line that ends with a |
1286 | continuation character (backslash). Suppress printing the | |
1287 | prompt again. */ | |
38bcc89d | 1288 | prompt = NULL; |
d318976c | 1289 | } |
9e0b60a8 | 1290 | |
d318976c FN |
1291 | #ifdef STOP_SIGNAL |
1292 | if (job_control) | |
1293 | signal (STOP_SIGNAL, SIG_DFL); | |
1294 | #endif | |
9e0b60a8 | 1295 | |
b69d38af | 1296 | return cmd; |
9e0b60a8 JM |
1297 | } |
1298 | \f | |
371d5dec | 1299 | /* Print the GDB banner. */ |
9e0b60a8 | 1300 | void |
fba45db2 | 1301 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1302 | { |
1303 | /* From GNU coding standards, first line is meant to be easy for a | |
1304 | program to parse, and is just canonical program name and version | |
371d5dec | 1305 | number, which starts after last space. */ |
9e0b60a8 | 1306 | |
c16158bc | 1307 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1308 | |
371d5dec | 1309 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1310 | |
3e43a32a | 1311 | fprintf_filtered (stream, |
61baf725 | 1312 | "Copyright (C) 2017 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1313 | |
1314 | /* Following the copyright is a brief statement that the program is | |
1315 | free software, that users are free to copy and change it on | |
1316 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1317 | there is no warranty. */ |
9e0b60a8 JM |
1318 | |
1319 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1320 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1321 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1322 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1323 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1324 | |
371d5dec | 1325 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1326 | |
1327 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1328 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1329 | { |
3e43a32a MS |
1330 | fprintf_filtered (stream, "--host=%s --target=%s", |
1331 | host_name, target_name); | |
9e0b60a8 JM |
1332 | } |
1333 | else | |
1334 | { | |
1335 | fprintf_filtered (stream, "%s", host_name); | |
1336 | } | |
6eaaf48b EZ |
1337 | fprintf_filtered (stream, "\".\n\ |
1338 | Type \"show configuration\" for configuration details."); | |
c16158bc JM |
1339 | |
1340 | if (REPORT_BUGS_TO[0]) | |
1341 | { | |
6eaaf48b | 1342 | fprintf_filtered (stream, |
c16158bc | 1343 | _("\nFor bug reporting instructions, please see:\n")); |
1cf55f60 | 1344 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1345 | } |
1cf55f60 PM |
1346 | fprintf_filtered (stream, |
1347 | _("Find the GDB manual and other documentation \ | |
1348 | resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n")); | |
1349 | fprintf_filtered (stream, _("For help, type \"help\".\n")); | |
1350 | fprintf_filtered (stream, _("Type \"apropos word\" to search for \ | |
af4c453a | 1351 | commands related to \"word\".")); |
9e0b60a8 | 1352 | } |
6eaaf48b EZ |
1353 | |
1354 | /* Print the details of GDB build-time configuration. */ | |
1355 | void | |
1356 | print_gdb_configuration (struct ui_file *stream) | |
1357 | { | |
1358 | fprintf_filtered (stream, _("\ | |
1359 | This GDB was configured as follows:\n\ | |
1360 | configure --host=%s --target=%s\n\ | |
1361 | "), host_name, target_name); | |
1362 | fprintf_filtered (stream, _("\ | |
1363 | --with-auto-load-dir=%s\n\ | |
1364 | --with-auto-load-safe-path=%s\n\ | |
1365 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1366 | #if HAVE_LIBEXPAT | |
1367 | fprintf_filtered (stream, _("\ | |
1368 | --with-expat\n\ | |
1369 | ")); | |
1370 | #else | |
1371 | fprintf_filtered (stream, _("\ | |
1372 | --without-expat\n\ | |
1373 | ")); | |
1374 | #endif | |
1375 | if (GDB_DATADIR[0]) | |
1376 | fprintf_filtered (stream, _("\ | |
1377 | --with-gdb-datadir=%s%s\n\ | |
1378 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1379 | #ifdef ICONV_BIN | |
1380 | fprintf_filtered (stream, _("\ | |
1381 | --with-iconv-bin=%s%s\n\ | |
1382 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1383 | #endif | |
1384 | if (JIT_READER_DIR[0]) | |
1385 | fprintf_filtered (stream, _("\ | |
1386 | --with-jit-reader-dir=%s%s\n\ | |
1387 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1388 | #if HAVE_LIBUNWIND_IA64_H | |
1389 | fprintf_filtered (stream, _("\ | |
1390 | --with-libunwind-ia64\n\ | |
1391 | ")); | |
1392 | #else | |
1393 | fprintf_filtered (stream, _("\ | |
1394 | --without-libunwind-ia64\n\ | |
1395 | ")); | |
1396 | #endif | |
1397 | #if HAVE_LIBLZMA | |
1398 | fprintf_filtered (stream, _("\ | |
1399 | --with-lzma\n\ | |
1400 | ")); | |
1401 | #else | |
1402 | fprintf_filtered (stream, _("\ | |
1403 | --without-lzma\n\ | |
1404 | ")); | |
1405 | #endif | |
1406 | #ifdef WITH_PYTHON_PATH | |
1407 | fprintf_filtered (stream, _("\ | |
1408 | --with-python=%s%s\n\ | |
1409 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
1410 | #endif | |
97d66cc6 EZ |
1411 | #if HAVE_GUILE |
1412 | fprintf_filtered (stream, _("\ | |
1413 | --with-guile\n\ | |
1414 | ")); | |
1415 | #else | |
1416 | fprintf_filtered (stream, _("\ | |
1417 | --without-guile\n\ | |
1418 | ")); | |
1419 | #endif | |
6eaaf48b EZ |
1420 | #ifdef RELOC_SRCDIR |
1421 | fprintf_filtered (stream, _("\ | |
1422 | --with-relocated-sources=%s\n\ | |
1423 | "), RELOC_SRCDIR); | |
1424 | #endif | |
1425 | if (DEBUGDIR[0]) | |
1426 | fprintf_filtered (stream, _("\ | |
1427 | --with-separate-debug-dir=%s%s\n\ | |
1428 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1429 | if (TARGET_SYSTEM_ROOT[0]) | |
1430 | fprintf_filtered (stream, _("\ | |
1431 | --with-sysroot=%s%s\n\ | |
1432 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1433 | if (SYSTEM_GDBINIT[0]) | |
1434 | fprintf_filtered (stream, _("\ | |
1435 | --with-system-gdbinit=%s%s\n\ | |
1436 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
ab116149 YQ |
1437 | #if HAVE_LIBBABELTRACE |
1438 | fprintf_filtered (stream, _("\ | |
1439 | --with-babeltrace\n\ | |
1440 | ")); | |
1441 | #else | |
1442 | fprintf_filtered (stream, _("\ | |
1443 | --without-babeltrace\n\ | |
1444 | ")); | |
1445 | #endif | |
48d1d6f5 EZ |
1446 | /* We assume "relocatable" will be printed at least once, thus we always |
1447 | print this text. It's a reasonably safe assumption for now. */ | |
1448 | fprintf_filtered (stream, _("\n\ | |
1449 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1450 | tree, and GDB will still find it.)\n\ | |
1451 | ")); | |
6eaaf48b | 1452 | } |
9e0b60a8 | 1453 | \f |
95298e72 | 1454 | |
ab821bc6 PA |
1455 | /* The current top level prompt, settable with "set prompt", and/or |
1456 | with the python `gdb.prompt_hook' hook. */ | |
1457 | static char *top_prompt; | |
9e0b60a8 | 1458 | |
ab821bc6 | 1459 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1460 | |
1461 | char * | |
ab821bc6 | 1462 | get_prompt (void) |
95298e72 | 1463 | { |
ab821bc6 | 1464 | return top_prompt; |
95298e72 PM |
1465 | } |
1466 | ||
ab821bc6 | 1467 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1468 | |
1469 | void | |
ab821bc6 | 1470 | set_prompt (const char *s) |
95298e72 | 1471 | { |
ab821bc6 | 1472 | char *p = xstrdup (s); |
95298e72 | 1473 | |
ab821bc6 PA |
1474 | xfree (top_prompt); |
1475 | top_prompt = p; | |
9e0b60a8 | 1476 | } |
9e0b60a8 | 1477 | \f |
c5aa993b | 1478 | |
b0abbc58 | 1479 | struct qt_args |
9e0b60a8 | 1480 | { |
b0abbc58 JJ |
1481 | char *args; |
1482 | int from_tty; | |
1483 | }; | |
9e0b60a8 | 1484 | |
54a012c9 PA |
1485 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1486 | inferior, depending on how we originally gained control of it. */ | |
1487 | ||
1488 | static int | |
1489 | kill_or_detach (struct inferior *inf, void *args) | |
1490 | { | |
19ba03f4 | 1491 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 PA |
1492 | struct thread_info *thread; |
1493 | ||
6c95b8df PA |
1494 | if (inf->pid == 0) |
1495 | return 0; | |
1496 | ||
b8fa0bfa PA |
1497 | thread = any_thread_of_process (inf->pid); |
1498 | if (thread != NULL) | |
9e0b60a8 | 1499 | { |
54a012c9 | 1500 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1501 | |
1502 | /* Leave core files alone. */ | |
1503 | if (target_has_execution) | |
1504 | { | |
1505 | if (inf->attach_flag) | |
1506 | target_detach (qt->args, qt->from_tty); | |
1507 | else | |
1508 | target_kill (); | |
1509 | } | |
9e0b60a8 JM |
1510 | } |
1511 | ||
54a012c9 PA |
1512 | return 0; |
1513 | } | |
1514 | ||
b8fa0bfa PA |
1515 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1516 | will do to each inferior on a "quit". ARG points to a struct | |
1517 | ui_out where output is to be collected. */ | |
1518 | ||
1519 | static int | |
1520 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1521 | { | |
19ba03f4 | 1522 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1523 | |
6c95b8df PA |
1524 | if (inf->pid == 0) |
1525 | return 0; | |
1526 | ||
b8fa0bfa PA |
1527 | if (inf->attach_flag) |
1528 | fprintf_filtered (stb, | |
1529 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1530 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1531 | else | |
1532 | fprintf_filtered (stb, | |
1533 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1534 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1535 | ||
1536 | return 0; | |
1537 | } | |
1538 | ||
1539 | /* If necessary, make the user confirm that we should quit. Return | |
1540 | non-zero if we should quit, zero if we shouldn't. */ | |
1541 | ||
1542 | int | |
1543 | quit_confirm (void) | |
1544 | { | |
b8fa0bfa PA |
1545 | /* Don't even ask if we're only debugging a core file inferior. */ |
1546 | if (!have_live_inferiors ()) | |
1547 | return 1; | |
1548 | ||
1549 | /* Build the query string as a single string. */ | |
d7e74731 | 1550 | string_file stb; |
b8fa0bfa | 1551 | |
d7e74731 PA |
1552 | stb.puts (_("A debugging session is active.\n\n")); |
1553 | iterate_over_inferiors (print_inferior_quit_action, &stb); | |
1554 | stb.puts (_("\nQuit anyway? ")); | |
7b01d34b | 1555 | |
d7e74731 | 1556 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1557 | } |
1558 | ||
18206ca3 PP |
1559 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1560 | terminal so that we leave the terminal in the state we acquired it. */ | |
1561 | ||
1562 | static void | |
1563 | undo_terminal_modifications_before_exit (void) | |
1564 | { | |
3c216924 PA |
1565 | struct ui *saved_top_level = current_ui; |
1566 | ||
223ffa71 | 1567 | target_terminal::ours (); |
3c216924 PA |
1568 | |
1569 | current_ui = main_ui; | |
1570 | ||
18206ca3 PP |
1571 | #if defined(TUI) |
1572 | tui_disable (); | |
1573 | #endif | |
3c216924 PA |
1574 | gdb_disable_readline (); |
1575 | ||
1576 | current_ui = saved_top_level; | |
18206ca3 PP |
1577 | } |
1578 | ||
1579 | ||
b0abbc58 JJ |
1580 | /* Quit without asking for confirmation. */ |
1581 | ||
1582 | void | |
36cf1806 | 1583 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1584 | { |
1585 | int exit_code = 0; | |
365c70b1 | 1586 | struct qt_args qt; |
b0abbc58 | 1587 | |
18206ca3 PP |
1588 | undo_terminal_modifications_before_exit (); |
1589 | ||
b0abbc58 | 1590 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1591 | value of that expression. */ |
36cf1806 TT |
1592 | if (exit_arg) |
1593 | exit_code = *exit_arg; | |
4b0ad762 AS |
1594 | else if (return_child_result) |
1595 | exit_code = return_child_result_value; | |
b0abbc58 | 1596 | |
36cf1806 | 1597 | qt.args = NULL; |
365c70b1 JJ |
1598 | qt.from_tty = from_tty; |
1599 | ||
b0abbc58 | 1600 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1601 | |
1602 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
492d29ea | 1603 | TRY |
2f9d54cf PA |
1604 | { |
1605 | disconnect_tracing (); | |
1606 | iterate_over_inferiors (kill_or_detach, &qt); | |
1607 | } | |
492d29ea PA |
1608 | CATCH (ex, RETURN_MASK_ALL) |
1609 | { | |
1610 | exception_print (gdb_stderr, ex); | |
1611 | } | |
1612 | END_CATCH | |
2f9d54cf PA |
1613 | |
1614 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1615 | them all out. */ | |
492d29ea | 1616 | TRY |
2f9d54cf PA |
1617 | { |
1618 | pop_all_targets (); | |
1619 | } | |
492d29ea PA |
1620 | CATCH (ex, RETURN_MASK_ALL) |
1621 | { | |
1622 | exception_print (gdb_stderr, ex); | |
1623 | } | |
1624 | END_CATCH | |
2f9d54cf PA |
1625 | |
1626 | /* Save the history information if it is appropriate to do so. */ | |
492d29ea | 1627 | TRY |
2f9d54cf | 1628 | { |
268a799a PA |
1629 | if (write_history_p && history_filename) |
1630 | { | |
1631 | struct ui *ui; | |
1632 | int save = 0; | |
1633 | ||
1634 | /* History is currently shared between all UIs. If there's | |
1635 | any UI with a terminal, save history. */ | |
1636 | ALL_UIS (ui) | |
1637 | { | |
1638 | if (input_interactive_p (ui)) | |
1639 | { | |
1640 | save = 1; | |
1641 | break; | |
1642 | } | |
1643 | } | |
1644 | ||
1645 | if (save) | |
1646 | gdb_safe_append_history (); | |
1647 | } | |
2f9d54cf | 1648 | } |
492d29ea PA |
1649 | CATCH (ex, RETURN_MASK_ALL) |
1650 | { | |
1651 | exception_print (gdb_stderr, ex); | |
1652 | } | |
1653 | END_CATCH | |
2f9d54cf PA |
1654 | |
1655 | /* Do any final cleanups before exiting. */ | |
492d29ea | 1656 | TRY |
2f9d54cf PA |
1657 | { |
1658 | do_final_cleanups (all_cleanups ()); | |
1659 | } | |
492d29ea PA |
1660 | CATCH (ex, RETURN_MASK_ALL) |
1661 | { | |
1662 | exception_print (gdb_stderr, ex); | |
1663 | } | |
1664 | END_CATCH | |
b0abbc58 | 1665 | |
9e0b60a8 JM |
1666 | exit (exit_code); |
1667 | } | |
1668 | ||
268a799a PA |
1669 | /* The value of the "interactive-mode" setting. */ |
1670 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1671 | |
268a799a PA |
1672 | /* Implement the "show interactive-mode" option. */ |
1673 | ||
1674 | static void | |
1675 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1676 | struct cmd_list_element *c, | |
1677 | const char *value) | |
9e0b60a8 | 1678 | { |
268a799a PA |
1679 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1680 | fprintf_filtered (file, "Debugger's interactive mode " | |
1681 | "is %s (currently %s).\n", | |
d9de1fe3 | 1682 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1683 | else |
1684 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1685 | } | |
1686 | ||
1687 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1688 | |
268a799a PA |
1689 | int |
1690 | input_interactive_p (struct ui *ui) | |
1691 | { | |
c63a1f86 JK |
1692 | if (batch_flag) |
1693 | return 0; | |
1694 | ||
268a799a PA |
1695 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1696 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1697 | |
268a799a | 1698 | return ui->input_interactive_p; |
9e0b60a8 JM |
1699 | } |
1700 | \f | |
9e0b60a8 | 1701 | static void |
fba45db2 | 1702 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1703 | { |
dc7eb48e PA |
1704 | /* Can't call dont_repeat here because we're not necessarily reading |
1705 | from stdin. */ | |
1706 | *saved_command_line = 0; | |
9e0b60a8 JM |
1707 | } |
1708 | \f | |
1709 | /* Functions to manipulate command line editing control variables. */ | |
1710 | ||
1711 | /* Number of commands to print in each call to show_commands. */ | |
1712 | #define Hist_print 10 | |
d318976c | 1713 | void |
fba45db2 | 1714 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1715 | { |
1716 | /* Index for history commands. Relative to history_base. */ | |
1717 | int offset; | |
1718 | ||
1719 | /* Number of the history entry which we are planning to display next. | |
1720 | Relative to history_base. */ | |
1721 | static int num = 0; | |
1722 | ||
9e0b60a8 | 1723 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1724 | |
1725 | if (args) | |
1726 | { | |
1727 | if (args[0] == '+' && args[1] == '\0') | |
1728 | /* "info editing +" should print from the stored position. */ | |
1729 | ; | |
1730 | else | |
1731 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1732 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1733 | } |
1734 | /* "show commands" means print the last Hist_print commands. */ | |
1735 | else | |
1736 | { | |
840a9a1f | 1737 | num = history_length - Hist_print; |
9e0b60a8 JM |
1738 | } |
1739 | ||
1740 | if (num < 0) | |
1741 | num = 0; | |
1742 | ||
1743 | /* If there are at least Hist_print commands, we want to display the last | |
1744 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1745 | if (history_length - num < Hist_print) |
9e0b60a8 | 1746 | { |
840a9a1f | 1747 | num = history_length - Hist_print; |
9e0b60a8 JM |
1748 | if (num < 0) |
1749 | num = 0; | |
1750 | } | |
1751 | ||
840a9a1f PA |
1752 | for (offset = num; |
1753 | offset < num + Hist_print && offset < history_length; | |
1754 | offset++) | |
9e0b60a8 JM |
1755 | { |
1756 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1757 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1758 | } |
1759 | ||
1760 | /* The next command we want to display is the next one that we haven't | |
1761 | displayed yet. */ | |
1762 | num += Hist_print; | |
1763 | ||
1764 | /* If the user repeats this command with return, it should do what | |
1765 | "show commands +" does. This is unnecessary if arg is null, | |
1766 | because "show commands +" is not useful after "show commands". */ | |
1767 | if (from_tty && args) | |
1768 | { | |
1769 | args[0] = '+'; | |
1770 | args[1] = '\0'; | |
1771 | } | |
1772 | } | |
1773 | ||
ebfd00d2 | 1774 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1775 | |
ebfd00d2 | 1776 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1777 | |
ebfd00d2 PP |
1778 | static void |
1779 | set_readline_history_size (int history_size) | |
1780 | { | |
1781 | gdb_assert (history_size >= -1); | |
840a9a1f | 1782 | |
ebfd00d2 | 1783 | if (history_size == -1) |
840a9a1f | 1784 | unstifle_history (); |
883b9c6c | 1785 | else |
ebfd00d2 PP |
1786 | stifle_history (history_size); |
1787 | } | |
1788 | ||
1789 | /* Called by do_setshow_command. */ | |
1790 | static void | |
1791 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) | |
1792 | { | |
1793 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1794 | } |
1795 | ||
d318976c | 1796 | void |
fba45db2 | 1797 | set_history (char *args, int from_tty) |
9e0b60a8 | 1798 | { |
3e43a32a MS |
1799 | printf_unfiltered (_("\"set history\" must be followed " |
1800 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1801 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1802 | } |
1803 | ||
d318976c | 1804 | void |
fba45db2 | 1805 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1806 | { |
1807 | cmd_show_list (showhistlist, from_tty, ""); | |
1808 | } | |
1809 | ||
371d5dec | 1810 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1811 | |
1812 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1813 | void |
fba45db2 | 1814 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1815 | { |
6f937416 | 1816 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1817 | struct cmd_list_element *showcmd; |
1818 | ||
1819 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1820 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1821 | |
1822 | if (info_verbose) | |
1823 | { | |
1824 | c->doc = "Set verbose printing of informational messages."; | |
1825 | showcmd->doc = "Show verbose printing of informational messages."; | |
1826 | } | |
1827 | else | |
1828 | { | |
1829 | c->doc = "Set verbosity."; | |
1830 | showcmd->doc = "Show verbosity."; | |
1831 | } | |
1832 | } | |
1833 | ||
9e0b60a8 | 1834 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1835 | have been read so that the user can change the history file via his |
1836 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1837 | overrides all of this. */ | |
9e0b60a8 JM |
1838 | |
1839 | void | |
fba45db2 | 1840 | init_history (void) |
9e0b60a8 JM |
1841 | { |
1842 | char *tmpenv; | |
1843 | ||
b58c513b | 1844 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1845 | if (tmpenv) |
840a9a1f | 1846 | { |
bc460514 | 1847 | long var; |
0fc26caf | 1848 | int saved_errno; |
bc460514 PP |
1849 | char *endptr; |
1850 | ||
1851 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1852 | errno = 0; |
bc460514 | 1853 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1854 | saved_errno = errno; |
bc460514 PP |
1855 | endptr = skip_spaces (endptr); |
1856 | ||
1857 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1858 | empty string, a negative number or a huge positive number (larger than | |
1859 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1860 | history size to the number we have read. This behavior is consistent | |
1861 | with how bash handles HISTSIZE. */ | |
1862 | if (*endptr != '\0') | |
1863 | ; | |
1864 | else if (*tmpenv == '\0' | |
1865 | || var < 0 | |
0fc26caf PP |
1866 | || var > INT_MAX |
1867 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1868 | errno after calling strtol to distinguish between a value that | |
1869 | is exactly INT_MAX and an overflowing value that was clamped | |
1870 | to INT_MAX. */ | |
1871 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1872 | history_size_setshow_var = -1; |
1873 | else | |
1874 | history_size_setshow_var = var; | |
840a9a1f | 1875 | } |
bc460514 PP |
1876 | |
1877 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1878 | default. */ | |
1879 | if (history_size_setshow_var == -2) | |
840a9a1f | 1880 | history_size_setshow_var = 256; |
9e0b60a8 | 1881 | |
ebfd00d2 | 1882 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1883 | |
1884 | tmpenv = getenv ("GDBHISTFILE"); | |
1885 | if (tmpenv) | |
1b36a34b | 1886 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1887 | else if (!history_filename) |
1888 | { | |
1889 | /* We include the current directory so that if the user changes | |
1890 | directories the file written will be the same as the one | |
1891 | that was read. */ | |
a0b3c4fd | 1892 | #ifdef __MSDOS__ |
eb2f494a | 1893 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1894 | history_filename = concat (current_directory, "/_gdb_history", |
1895 | (char *)NULL); | |
a0b3c4fd | 1896 | #else |
1754f103 MK |
1897 | history_filename = concat (current_directory, "/.gdb_history", |
1898 | (char *)NULL); | |
a0b3c4fd | 1899 | #endif |
c5aa993b | 1900 | } |
9e0b60a8 JM |
1901 | read_history (history_filename); |
1902 | } | |
1903 | ||
920d2a44 | 1904 | static void |
ab821bc6 PA |
1905 | show_prompt (struct ui_file *file, int from_tty, |
1906 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1907 | { |
1908 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1909 | } | |
1910 | ||
3c216924 PA |
1911 | /* "set editing" command. */ |
1912 | ||
1913 | static void | |
1914 | set_editing (char *args, int from_tty, struct cmd_list_element *c) | |
1915 | { | |
1916 | change_line_handler (set_editing_cmd_var); | |
1917 | /* Update the control variable so that MI's =cmd-param-changed event | |
1918 | shows the correct value. */ | |
1919 | set_editing_cmd_var = current_ui->command_editing; | |
1920 | } | |
1921 | ||
920d2a44 | 1922 | static void |
3c216924 PA |
1923 | show_editing (struct ui_file *file, int from_tty, |
1924 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 1925 | { |
3e43a32a MS |
1926 | fprintf_filtered (file, _("Editing of command lines as " |
1927 | "they are typed is %s.\n"), | |
3c216924 | 1928 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
1929 | } |
1930 | ||
1931 | static void | |
1932 | show_annotation_level (struct ui_file *file, int from_tty, | |
1933 | struct cmd_list_element *c, const char *value) | |
1934 | { | |
1935 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1936 | } | |
1937 | ||
1938 | static void | |
1939 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1940 | struct cmd_list_element *c, const char *value) | |
1941 | { | |
3e43a32a MS |
1942 | fprintf_filtered (file, _("Notification of completion for " |
1943 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1944 | value); |
1945 | } | |
6dea1fbd | 1946 | |
8d551b02 DE |
1947 | /* New values of the "data-directory" parameter are staged here. */ |
1948 | static char *staged_gdb_datadir; | |
1949 | ||
6dea1fbd JK |
1950 | /* "set" command for the gdb_datadir configuration variable. */ |
1951 | ||
1952 | static void | |
1953 | set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c) | |
1954 | { | |
8d551b02 | 1955 | set_gdb_data_directory (staged_gdb_datadir); |
6dea1fbd JK |
1956 | observer_notify_gdb_datadir_changed (); |
1957 | } | |
1958 | ||
8d551b02 DE |
1959 | /* "show" command for the gdb_datadir configuration variable. */ |
1960 | ||
1961 | static void | |
1962 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
1963 | struct cmd_list_element *c, const char *value) | |
1964 | { | |
1965 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
1966 | gdb_datadir); | |
1967 | } | |
1968 | ||
97c85fc6 MB |
1969 | static void |
1970 | set_history_filename (char *args, int from_tty, struct cmd_list_element *c) | |
1971 | { | |
1972 | /* We include the current directory so that if the user changes | |
1973 | directories the file written will be the same as the one | |
1974 | that was read. */ | |
1975 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
1976 | history_filename = reconcat (history_filename, current_directory, "/", | |
1977 | history_filename, (char *) NULL); | |
1978 | } | |
1979 | ||
9e0b60a8 | 1980 | static void |
fba45db2 | 1981 | init_main (void) |
9e0b60a8 | 1982 | { |
60eb5395 PA |
1983 | struct cmd_list_element *c; |
1984 | ||
ab821bc6 PA |
1985 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1986 | the DEFAULT_PROMPT is. */ | |
1987 | set_prompt (DEFAULT_PROMPT); | |
1988 | ||
9e0b60a8 JM |
1989 | /* Set the important stuff up for command editing. */ |
1990 | command_editing_p = 1; | |
9e0b60a8 | 1991 | history_expansion_p = 0; |
452a569e | 1992 | write_history_p = 0; |
9e0b60a8 JM |
1993 | |
1994 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 1995 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 1996 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 1997 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 1998 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 1999 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2000 | rl_readline_name = "gdb"; |
7cb3ec5e | 2001 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2002 | |
467d8519 TT |
2003 | /* The name for this defun comes from Bash, where it originated. |
2004 | 15 is Control-o, the same binding this function has in Bash. */ | |
2005 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2006 | ||
4d28ad1e | 2007 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2008 | &top_prompt, |
3e43a32a MS |
2009 | _("Set gdb's prompt"), |
2010 | _("Show gdb's prompt"), | |
ab821bc6 PA |
2011 | NULL, NULL, |
2012 | show_prompt, | |
4d28ad1e | 2013 | &setlist, &showlist); |
9e0b60a8 | 2014 | |
1bedd215 | 2015 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2016 | Don't repeat this command.\nPrimarily \ |
2017 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2018 | hitting return.")); |
9e0b60a8 | 2019 | |
5bf193a2 | 2020 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2021 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2022 | Set editing of command lines as they are typed."), _("\ |
2023 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2024 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2025 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2026 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2027 | set_editing, |
2028 | show_editing, | |
5bf193a2 AC |
2029 | &setlist, &showlist); |
2030 | ||
2031 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2032 | Set saving of the history record on exit."), _("\ | |
2033 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2034 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2035 | Without an argument, saving is enabled."), |
2036 | NULL, | |
920d2a44 | 2037 | show_write_history_p, |
5bf193a2 | 2038 | &sethistlist, &showhistlist); |
9e0b60a8 | 2039 | |
ebfd00d2 PP |
2040 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2041 | &history_size_setshow_var, _("\ | |
4d28ad1e AC |
2042 | Set the size of the command history,"), _("\ |
2043 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
2044 | ie. the number of previous commands to keep a record of.\n\ |
2045 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
2046 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2047 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2048 | set_history_size_command, |
2049 | show_history_size, | |
2050 | &sethistlist, &showhistlist); | |
4d28ad1e | 2051 | |
fc637f04 PP |
2052 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2053 | &history_remove_duplicates, _("\ | |
2054 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2055 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2056 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2057 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2058 | entry, each time a new history entry is added.\n\ | |
2059 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2060 | Only history entries added during this session are considered for removal.\n\ | |
2061 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2062 | By default this option is set to 0."), | |
2063 | NULL, | |
2064 | show_history_remove_duplicates, | |
2065 | &sethistlist, &showhistlist); | |
2066 | ||
4d28ad1e AC |
2067 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
2068 | Set the filename in which to record the command history"), _("\ | |
2069 | Show the filename in which to record the command history"), _("\ | |
2070 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 2071 | set_history_filename, |
920d2a44 | 2072 | show_history_filename, |
4d28ad1e | 2073 | &sethistlist, &showhistlist); |
9e0b60a8 | 2074 | |
e360902b | 2075 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2076 | Set whether to confirm potentially dangerous operations."), _("\ |
2077 | Show whether to confirm potentially dangerous operations."), NULL, | |
2078 | NULL, | |
e360902b | 2079 | show_confirm, |
5bf193a2 | 2080 | &setlist, &showlist); |
9e0b60a8 | 2081 | |
85c07804 AC |
2082 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2083 | Set annotation_level."), _("\ | |
2084 | Show annotation_level."), _("\ | |
9e0b60a8 | 2085 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2086 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2087 | NULL, |
920d2a44 | 2088 | show_annotation_level, |
85c07804 | 2089 | &setlist, &showlist); |
362646f5 | 2090 | |
5bf193a2 AC |
2091 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2092 | &exec_done_display_p, _("\ | |
2093 | Set notification of completion for asynchronous execution commands."), _("\ | |
2094 | Show notification of completion for asynchronous execution commands."), _("\ | |
2095 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2096 | NULL, | |
920d2a44 | 2097 | show_exec_done_display_p, |
5bf193a2 | 2098 | &setlist, &showlist); |
b14b1491 TT |
2099 | |
2100 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2101 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2102 | _("Show GDB's data directory."), |
2103 | _("\ | |
2104 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2105 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2106 | &setlist, |
2107 | &showlist); | |
268a799a PA |
2108 | |
2109 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2110 | &interactive_mode, _("\ | |
2111 | Set whether GDB's standard input is a terminal."), _("\ | |
2112 | Show whether GDB's standard input is a terminal."), _("\ | |
2113 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2114 | means that GDB should wait for the user to answer queries associated to\n\ | |
2115 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2116 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2117 | If auto (the default), determine which mode to use based on the standard\n\ | |
2118 | input settings."), | |
2119 | NULL, | |
2120 | show_interactive_mode, | |
2121 | &setlist, &showlist); | |
60eb5395 PA |
2122 | |
2123 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
2124 | Create a new UI. It takes two arguments:\n\ | |
2125 | The first argument is the name of the interpreter to run.\n\ | |
2126 | The second argument is the terminal the UI runs on.\n"), &cmdlist); | |
2127 | set_cmd_completer (c, interpreter_completer); | |
9e0b60a8 | 2128 | } |
64cdedad EZ |
2129 | |
2130 | void | |
2131 | gdb_init (char *argv0) | |
2132 | { | |
2133 | if (pre_init_ui_hook) | |
2134 | pre_init_ui_hook (); | |
2135 | ||
371d5dec | 2136 | /* Run the init function of each source file. */ |
64cdedad | 2137 | |
64cdedad EZ |
2138 | #ifdef __MSDOS__ |
2139 | /* Make sure we return to the original directory upon exit, come | |
2140 | what may, since the OS doesn't do that for us. */ | |
2141 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2142 | #endif | |
2143 | ||
371d5dec MS |
2144 | init_cmd_lists (); /* This needs to be done first. */ |
2145 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
2146 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 | 2147 | |
24b73f8e PP |
2148 | init_page_info (); |
2149 | ||
9dea9163 | 2150 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2151 | initialize_all_files (); |
9dea9163 | 2152 | |
6c95b8df PA |
2153 | /* This creates the current_program_space. Do this after all the |
2154 | _initialize_foo routines have had a chance to install their | |
2155 | per-sspace data keys. Also do this before | |
2156 | initialize_current_architecture is called, because it accesses | |
2157 | exec_bfd of the current program space. */ | |
2158 | initialize_progspace (); | |
2159 | initialize_inferiors (); | |
64cdedad EZ |
2160 | initialize_current_architecture (); |
2161 | init_cli_cmds(); | |
371d5dec | 2162 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2163 | |
0ea3f30e DJ |
2164 | initialize_stdin_serial (); |
2165 | ||
6a06d660 PP |
2166 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2167 | to alter it. */ | |
2168 | set_initial_gdb_ttystate (); | |
2169 | ||
362646f5 | 2170 | async_init_signals (); |
64cdedad | 2171 | |
371d5dec MS |
2172 | /* We need a default language for parsing expressions, so simple |
2173 | things like "set width 0" won't fail if no language is explicitly | |
2174 | set in a config file or implicitly set by reading an executable | |
2175 | during startup. */ | |
64cdedad | 2176 | set_language (language_c); |
371d5dec | 2177 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2178 | |
6dddc817 | 2179 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2180 | installed. For example "info pretty-printer" needs the "info" |
2181 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2182 | script initialization here. */ |
2183 | finish_ext_lang_initialization (); | |
64cdedad | 2184 | } |