Commit | Line | Data |
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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 | ||
136 | /* The directory name is actually stored here (usually). */ | |
137 | char gdb_dirbuf[1024]; | |
138 | ||
2669cade PA |
139 | /* The last command line executed on the console. Used for command |
140 | repetitions. */ | |
dc7eb48e | 141 | char *saved_command_line; |
c906108c SS |
142 | |
143 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 144 | affects things like recording into the command history, commands |
c906108c SS |
145 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
146 | whatever) can issue its own commands and also send along commands | |
147 | from the user, and have the user not notice that the user interface | |
148 | is issuing commands too. */ | |
149 | int server_command; | |
150 | ||
371d5dec | 151 | /* Timeout limit for response from target. */ |
c906108c | 152 | |
ce808e91 AC |
153 | /* The default value has been changed many times over the years. It |
154 | was originally 5 seconds. But that was thought to be a long time | |
155 | to sit and wait, so it was changed to 2 seconds. That was thought | |
156 | to be plenty unless the connection was going through some terminal | |
157 | server or multiplexer or other form of hairy serial connection. | |
158 | ||
159 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
160 | it began being used in other remote-* targets. It appears that the | |
161 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 162 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
163 | |
164 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
165 | 20 seconds is far worse. This demonstrates the difficulty of using | |
166 | a single variable for all protocol timeouts. | |
167 | ||
168 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 169 | back to 2 seconds in 1999. */ |
ce808e91 AC |
170 | |
171 | int remote_timeout = 2; | |
c906108c SS |
172 | |
173 | /* Non-zero tells remote* modules to output debugging info. */ | |
174 | ||
175 | int remote_debug = 0; | |
176 | ||
6dd77b81 RH |
177 | /* Sbrk location on entry to main. Used for statistics only. */ |
178 | #ifdef HAVE_SBRK | |
179 | char *lim_at_start; | |
180 | #endif | |
181 | ||
c906108c SS |
182 | /* Hooks for alternate command interfaces. */ |
183 | ||
371d5dec MS |
184 | /* This hook is called from within gdb's many mini-event loops which |
185 | could steal control from a real user interface's event loop. It | |
186 | returns non-zero if the user is requesting a detach, zero | |
187 | otherwise. */ | |
7a292a7a | 188 | |
98bbd631 | 189 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 190 | |
c906108c | 191 | |
c906108c SS |
192 | /* Called from print_frame_info to list the line we stopped in. */ |
193 | ||
371d5dec MS |
194 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
195 | int line, | |
196 | int stopline, | |
197 | int noerror); | |
c906108c SS |
198 | /* Replaces most of query. */ |
199 | ||
9a4105ab | 200 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
201 | |
202 | /* Replaces most of warning. */ | |
203 | ||
9a4105ab | 204 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 205 | |
9a4105ab AC |
206 | /* These three functions support getting lines of text from the user. |
207 | They are used in sequence. First deprecated_readline_begin_hook is | |
208 | called with a text string that might be (for example) a message for | |
209 | the user to type in a sequence of commands to be executed at a | |
210 | breakpoint. If this function calls back to a GUI, it might take | |
211 | this opportunity to pop up a text interaction window with this | |
212 | message. Next, deprecated_readline_hook is called with a prompt | |
213 | that is emitted prior to collecting the user input. It can be | |
214 | called multiple times. Finally, deprecated_readline_end_hook is | |
215 | called to notify the GUI that we are done with the interaction | |
216 | window and it can close it. */ | |
c906108c | 217 | |
a121b7c1 | 218 | void (*deprecated_readline_begin_hook) (const char *, ...); |
38bcc89d | 219 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 220 | void (*deprecated_readline_end_hook) (void); |
c906108c | 221 | |
6426a772 | 222 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 223 | to or detached from an already running process. */ |
6426a772 | 224 | |
9a4105ab AC |
225 | void (*deprecated_attach_hook) (void); |
226 | void (*deprecated_detach_hook) (void); | |
6426a772 | 227 | |
371d5dec MS |
228 | /* Called during long calculations to allow GUI to repair window |
229 | damage, and to check for stop buttons, etc... */ | |
c906108c | 230 | |
9a4105ab | 231 | void (*deprecated_interactive_hook) (void); |
c906108c | 232 | |
371d5dec MS |
233 | /* Called when going to wait for the target. Usually allows the GUI |
234 | to run while waiting for target events. */ | |
c906108c | 235 | |
9a4105ab | 236 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
237 | struct target_waitstatus *status, |
238 | int options); | |
c906108c | 239 | |
371d5dec MS |
240 | /* Used by UI as a wrapper around command execution. May do various |
241 | things like enabling/disabling buttons, etc... */ | |
c906108c | 242 | |
371d5dec MS |
243 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
244 | char *cmd, int from_tty); | |
c906108c SS |
245 | |
246 | /* Called when the current thread changes. Argument is thread id. */ | |
247 | ||
9a4105ab | 248 | void (*deprecated_context_hook) (int id); |
c906108c | 249 | |
98d9f24e PA |
250 | /* The highest UI number ever assigned. */ |
251 | static int highest_ui_num; | |
252 | ||
253 | /* See top.h. */ | |
254 | ||
255 | struct ui * | |
256 | new_ui (FILE *instream, FILE *outstream, FILE *errstream) | |
257 | { | |
258 | struct ui *ui; | |
259 | ||
260 | ui = XCNEW (struct ui); | |
261 | ||
262 | ui->num = ++highest_ui_num; | |
268a799a | 263 | ui->stdin_stream = instream; |
98d9f24e PA |
264 | ui->instream = instream; |
265 | ui->outstream = outstream; | |
266 | ui->errstream = errstream; | |
267 | ||
268 | ui->input_fd = fileno (ui->instream); | |
269 | ||
268a799a PA |
270 | ui->input_interactive_p = ISATTY (ui->instream); |
271 | ||
d7e74731 PA |
272 | ui->m_gdb_stdin = new stdio_file (ui->instream); |
273 | ui->m_gdb_stdout = new stdio_file (ui->outstream); | |
274 | ui->m_gdb_stderr = new stderr_file (ui->errstream); | |
98d9f24e PA |
275 | ui->m_gdb_stdlog = ui->m_gdb_stderr; |
276 | ||
277 | ui->prompt_state = PROMPT_NEEDED; | |
278 | ||
279 | if (ui_list == NULL) | |
280 | ui_list = ui; | |
281 | else | |
282 | { | |
283 | struct ui *last; | |
284 | ||
285 | for (last = ui_list; last->next != NULL; last = last->next) | |
286 | ; | |
287 | last->next = ui; | |
288 | } | |
289 | ||
290 | return ui; | |
291 | } | |
292 | ||
07169ff7 PA |
293 | static void |
294 | free_ui (struct ui *ui) | |
295 | { | |
d7e74731 PA |
296 | delete ui->m_gdb_stdin; |
297 | delete ui->m_gdb_stdout; | |
298 | delete ui->m_gdb_stderr; | |
07169ff7 PA |
299 | |
300 | xfree (ui); | |
301 | } | |
302 | ||
303 | void | |
304 | delete_ui (struct ui *todel) | |
305 | { | |
306 | struct ui *ui, *uiprev; | |
307 | ||
308 | uiprev = NULL; | |
309 | ||
310 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
311 | if (ui == todel) | |
312 | break; | |
313 | ||
314 | gdb_assert (ui != NULL); | |
315 | ||
316 | if (uiprev != NULL) | |
317 | uiprev->next = ui->next; | |
318 | else | |
319 | ui_list = ui->next; | |
320 | ||
321 | free_ui (ui); | |
322 | } | |
323 | ||
8194e927 SM |
324 | /* Cleanup that deletes a UI. */ |
325 | ||
326 | static void | |
327 | delete_ui_cleanup (void *void_ui) | |
328 | { | |
329 | struct ui *ui = (struct ui *) void_ui; | |
330 | ||
331 | delete_ui (ui); | |
332 | } | |
333 | ||
334 | /* See top.h. */ | |
335 | ||
336 | struct cleanup * | |
337 | make_delete_ui_cleanup (struct ui *ui) | |
338 | { | |
339 | return make_cleanup (delete_ui_cleanup, ui); | |
340 | } | |
341 | ||
60eb5395 PA |
342 | /* Open file named NAME for read/write, making sure not to make it the |
343 | controlling terminal. */ | |
344 | ||
6e7bc05c | 345 | static gdb_file_up |
60eb5395 PA |
346 | open_terminal_stream (const char *name) |
347 | { | |
348 | int fd; | |
349 | ||
6e7bc05c | 350 | fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0); |
60eb5395 PA |
351 | if (fd < 0) |
352 | perror_with_name (_("opening terminal failed")); | |
353 | ||
6e7bc05c | 354 | return gdb_file_up (fdopen (fd, "w+")); |
60eb5395 PA |
355 | } |
356 | ||
357 | /* Implementation of the "new-ui" command. */ | |
358 | ||
359 | static void | |
360 | new_ui_command (char *args, int from_tty) | |
361 | { | |
362 | struct ui *ui; | |
363 | struct interp *interp; | |
6e7bc05c | 364 | gdb_file_up stream[3]; |
60eb5395 PA |
365 | int i; |
366 | int res; | |
367 | int argc; | |
60eb5395 PA |
368 | const char *interpreter_name; |
369 | const char *tty_name; | |
8194e927 | 370 | struct cleanup *failure_chain; |
60eb5395 PA |
371 | |
372 | dont_repeat (); | |
373 | ||
773a1edc TT |
374 | gdb_argv argv (args); |
375 | argc = argv.count (); | |
60eb5395 PA |
376 | |
377 | if (argc < 2) | |
378 | error (_("usage: new-ui <interpreter> <tty>")); | |
379 | ||
380 | interpreter_name = argv[0]; | |
381 | tty_name = argv[1]; | |
382 | ||
4b6749b9 TT |
383 | { |
384 | scoped_restore save_ui = make_scoped_restore (¤t_ui); | |
8194e927 | 385 | |
4b6749b9 TT |
386 | /* Open specified terminal, once for each of |
387 | stdin/stdout/stderr. */ | |
388 | for (i = 0; i < 3; i++) | |
6e7bc05c | 389 | stream[i] = open_terminal_stream (tty_name); |
60eb5395 | 390 | |
6e7bc05c TT |
391 | ui = new_ui (stream[0].get (), stream[1].get (), stream[2].get ()); |
392 | failure_chain = make_cleanup (delete_ui_cleanup, ui); | |
60eb5395 | 393 | |
4b6749b9 | 394 | ui->async = 1; |
60eb5395 | 395 | |
4b6749b9 | 396 | current_ui = ui; |
60eb5395 | 397 | |
4b6749b9 | 398 | set_top_level_interpreter (interpreter_name); |
60eb5395 | 399 | |
4b6749b9 | 400 | interp_pre_command_loop (top_level_interpreter ()); |
60eb5395 | 401 | |
6e7bc05c TT |
402 | /* Make sure the files are not closed. */ |
403 | stream[0].release (); | |
404 | stream[1].release (); | |
405 | stream[2].release (); | |
406 | ||
4b6749b9 | 407 | discard_cleanups (failure_chain); |
4b6749b9 | 408 | } |
60eb5395 PA |
409 | |
410 | printf_unfiltered ("New UI allocated\n"); | |
411 | } | |
412 | ||
c906108c SS |
413 | /* Handler for SIGHUP. */ |
414 | ||
415 | #ifdef SIGHUP | |
392a587b | 416 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 417 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 418 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
419 | /* static */ void |
420 | quit_cover (void) | |
c906108c | 421 | { |
e360902b PA |
422 | /* Stop asking user for confirmation --- we're exiting. This |
423 | prevents asking the user dumb questions. */ | |
424 | confirm = 0; | |
c5aa993b | 425 | quit_command ((char *) 0, 0); |
c906108c SS |
426 | } |
427 | #endif /* defined SIGHUP */ | |
428 | \f | |
7a9dd1b2 | 429 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 430 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 431 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 432 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 433 | /* static */ int source_line_number; |
c906108c SS |
434 | |
435 | /* Name of the file we are sourcing. */ | |
392a587b | 436 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 437 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 438 | event-top.c into this file, top.c. */ |
05159abe | 439 | /* static */ const char *source_file_name; |
c906108c | 440 | |
c906108c SS |
441 | /* Read commands from STREAM. */ |
442 | void | |
fba45db2 | 443 | read_command_file (FILE *stream) |
c906108c | 444 | { |
f38d3ad1 | 445 | struct ui *ui = current_ui; |
c906108c | 446 | |
3c9ebddd TT |
447 | scoped_restore save_instream |
448 | = make_scoped_restore (&ui->instream, stream); | |
faa4ebe1 PA |
449 | |
450 | /* Read commands from `instream' and execute them until end of file | |
451 | or error reading instream. */ | |
452 | ||
f38d3ad1 | 453 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 PA |
454 | { |
455 | char *command; | |
456 | ||
457 | /* Get a command-line. This calls the readline package. */ | |
458 | command = command_line_input (NULL, 0, NULL); | |
459 | if (command == NULL) | |
460 | break; | |
461 | command_handler (command); | |
462 | } | |
c906108c SS |
463 | } |
464 | \f | |
507f3c78 | 465 | void (*pre_init_ui_hook) (void); |
c906108c | 466 | |
e41a3b1a | 467 | #ifdef __MSDOS__ |
70976b65 | 468 | static void |
e41a3b1a AC |
469 | do_chdir_cleanup (void *old_dir) |
470 | { | |
f515a1d6 | 471 | chdir ((const char *) old_dir); |
b8c9b27d | 472 | xfree (old_dir); |
e41a3b1a AC |
473 | } |
474 | #endif | |
475 | ||
028d0ed5 | 476 | struct cleanup * |
4e5d721f DE |
477 | prepare_execute_command (void) |
478 | { | |
028d0ed5 TJB |
479 | struct value *mark; |
480 | struct cleanup *cleanup; | |
481 | ||
482 | mark = value_mark (); | |
483 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 484 | |
371d5dec MS |
485 | /* With multiple threads running while the one we're examining is |
486 | stopped, the dcache can get stale without us being able to detect | |
487 | it. For the duration of the command, though, use the dcache to | |
488 | help things like backtrace. */ | |
4e5d721f DE |
489 | if (non_stop) |
490 | target_dcache_invalidate (); | |
028d0ed5 TJB |
491 | |
492 | return cleanup; | |
4e5d721f DE |
493 | } |
494 | ||
77cce10f PA |
495 | /* Tell the user if the language has changed (except first time) after |
496 | executing a command. */ | |
497 | ||
498 | void | |
499 | check_frame_language_change (void) | |
500 | { | |
501 | static int warned = 0; | |
7ff38b1c | 502 | struct frame_info *frame; |
77cce10f PA |
503 | |
504 | /* First make sure that a new frame has been selected, in case the | |
505 | command or the hooks changed the program state. */ | |
7ff38b1c | 506 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
507 | if (current_language != expected_language) |
508 | { | |
509 | if (language_mode == language_mode_auto && info_verbose) | |
510 | { | |
511 | language_info (1); /* Print what changed. */ | |
512 | } | |
513 | warned = 0; | |
514 | } | |
515 | ||
516 | /* Warn the user if the working language does not match the language | |
517 | of the current frame. Only warn the user if we are actually | |
518 | running the program, i.e. there is a stack. */ | |
519 | /* FIXME: This should be cacheing the frame and only running when | |
520 | the frame changes. */ | |
521 | ||
522 | if (has_stack_frames ()) | |
523 | { | |
524 | enum language flang; | |
525 | ||
7ff38b1c | 526 | flang = get_frame_language (frame); |
77cce10f PA |
527 | if (!warned |
528 | && flang != language_unknown | |
529 | && flang != current_language->la_language) | |
530 | { | |
531 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
532 | warned = 1; | |
533 | } | |
534 | } | |
535 | } | |
536 | ||
98880d46 PA |
537 | /* See top.h. */ |
538 | ||
0b333c5e PA |
539 | void |
540 | wait_sync_command_done (void) | |
541 | { | |
4295e285 | 542 | /* Processing events may change the current UI. */ |
4b6749b9 | 543 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 PA |
544 | struct ui *ui = current_ui; |
545 | ||
0b333c5e | 546 | while (gdb_do_one_event () >= 0) |
4295e285 | 547 | if (ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
548 | break; |
549 | } | |
550 | ||
551 | /* See top.h. */ | |
552 | ||
98880d46 PA |
553 | void |
554 | maybe_wait_sync_command_done (int was_sync) | |
555 | { | |
556 | /* If the interpreter is in sync mode (we're running a user | |
557 | command's list, running command hooks or similars), and we | |
558 | just ran a synchronous command that started the target, wait | |
559 | for that command to end. */ | |
3b12939d PA |
560 | if (!current_ui->async |
561 | && !was_sync | |
562 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 563 | wait_sync_command_done (); |
98880d46 PA |
564 | } |
565 | ||
648bf667 | 566 | /* Execute the line P as a command, in the current user context. |
d318976c | 567 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 568 | |
d318976c FN |
569 | void |
570 | execute_command (char *p, int from_tty) | |
c906108c | 571 | { |
353d1d73 | 572 | struct cleanup *cleanup_if_error, *cleanup; |
52f0bd74 | 573 | struct cmd_list_element *c; |
d318976c | 574 | char *line; |
4e5d721f | 575 | |
353d1d73 | 576 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
028d0ed5 | 577 | cleanup = prepare_execute_command (); |
c906108c | 578 | |
d318976c FN |
579 | /* Force cleanup of any alloca areas if using C alloca instead of |
580 | a builtin alloca. */ | |
581 | alloca (0); | |
c906108c | 582 | |
d318976c FN |
583 | /* This can happen when command_line_input hits end of file. */ |
584 | if (p == NULL) | |
5fe41fbf TT |
585 | { |
586 | do_cleanups (cleanup); | |
5ae85e44 | 587 | discard_cleanups (cleanup_if_error); |
5fe41fbf TT |
588 | return; |
589 | } | |
c906108c | 590 | |
49d03eab | 591 | target_log_command (p); |
8b93c638 | 592 | |
d318976c FN |
593 | while (*p == ' ' || *p == '\t') |
594 | p++; | |
595 | if (*p) | |
8b93c638 | 596 | { |
6f937416 | 597 | const char *cmd = p; |
d318976c | 598 | char *arg; |
3b12939d | 599 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 600 | |
d318976c | 601 | line = p; |
8b93c638 | 602 | |
16026cd7 AS |
603 | /* If trace-commands is set then this will print this command. */ |
604 | print_command_trace (p); | |
605 | ||
6f937416 PA |
606 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
607 | p = (char *) cmd; | |
8b93c638 | 608 | |
d318976c FN |
609 | /* Pass null arg rather than an empty one. */ |
610 | arg = *p ? p : 0; | |
8b93c638 | 611 | |
9f60d481 AC |
612 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
613 | while the is_complete_command(cfunc) test is just plain | |
614 | bogus. They should both be replaced by a test of the form | |
615 | c->strip_trailing_white_space_p. */ | |
616 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
617 | can't be replaced with func. This is because it is the | |
618 | cfunc, and not the func, that has the value that the | |
619 | is_complete_command hack is testing for. */ | |
620 | /* Clear off trailing whitespace, except for set and complete | |
621 | command. */ | |
d318976c FN |
622 | if (arg |
623 | && c->type != set_cmd | |
bbaca940 | 624 | && !is_complete_command (c)) |
8b93c638 | 625 | { |
d318976c FN |
626 | p = arg + strlen (arg) - 1; |
627 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
628 | p--; | |
629 | *(p + 1) = '\0'; | |
8b93c638 JM |
630 | } |
631 | ||
371d5dec | 632 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 633 | execute_cmd_pre_hook (c); |
c906108c | 634 | |
1f2bdf09 | 635 | if (c->deprecated_warn_user) |
6f937416 | 636 | deprecated_cmd_warning (line); |
c906108c | 637 | |
7d74f244 | 638 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 639 | if (c->theclass == class_user && c->user_commands) |
d318976c | 640 | execute_user_command (c, arg); |
5b9afe8a YQ |
641 | else if (c->type == set_cmd) |
642 | do_set_command (arg, from_tty, c); | |
643 | else if (c->type == show_cmd) | |
644 | do_show_command (arg, from_tty, c); | |
f436dd25 | 645 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 646 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 647 | else if (deprecated_call_command_hook) |
050a2e1d | 648 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 649 | else |
050a2e1d | 650 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 651 | |
98880d46 | 652 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 653 | |
371d5dec | 654 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 655 | execute_cmd_post_hook (c); |
c906108c | 656 | |
c906108c SS |
657 | } |
658 | ||
77cce10f | 659 | check_frame_language_change (); |
028d0ed5 | 660 | |
353d1d73 JK |
661 | do_cleanups (cleanup); |
662 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
663 | } |
664 | ||
5da1313b JK |
665 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
666 | returned string, do not display it to the screen. BATCH_FLAG will be | |
667 | temporarily set to true. */ | |
668 | ||
db1ec11f | 669 | std::string |
5da1313b JK |
670 | execute_command_to_string (char *p, int from_tty) |
671 | { | |
5da1313b | 672 | struct cleanup *cleanup; |
5da1313b JK |
673 | |
674 | /* GDB_STDOUT should be better already restored during these | |
675 | restoration callbacks. */ | |
676 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
677 | ||
b7b633e9 | 678 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); |
b4a14fd0 | 679 | |
d7e74731 | 680 | string_file str_file; |
5da1313b | 681 | |
d7e74731 | 682 | current_uiout->redirect (&str_file); |
7becfd03 | 683 | make_cleanup_ui_out_redirect_pop (current_uiout); |
5da1313b | 684 | |
97468094 | 685 | scoped_restore save_stdout |
d7e74731 | 686 | = make_scoped_restore (&gdb_stdout, &str_file); |
97468094 | 687 | scoped_restore save_stderr |
d7e74731 | 688 | = make_scoped_restore (&gdb_stderr, &str_file); |
97468094 | 689 | scoped_restore save_stdlog |
d7e74731 | 690 | = make_scoped_restore (&gdb_stdlog, &str_file); |
97468094 | 691 | scoped_restore save_stdtarg |
d7e74731 | 692 | = make_scoped_restore (&gdb_stdtarg, &str_file); |
97468094 | 693 | scoped_restore save_stdtargerr |
d7e74731 | 694 | = make_scoped_restore (&gdb_stdtargerr, &str_file); |
5da1313b JK |
695 | |
696 | execute_command (p, from_tty); | |
697 | ||
5da1313b JK |
698 | do_cleanups (cleanup); |
699 | ||
d7e74731 | 700 | return std::move (str_file.string ()); |
5da1313b JK |
701 | } |
702 | ||
d318976c | 703 | \f |
47a80e90 TT |
704 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
705 | set via prevent_dont_repeat. */ | |
706 | ||
707 | static int suppress_dont_repeat = 0; | |
708 | ||
d318976c | 709 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 710 | |
d318976c FN |
711 | void |
712 | dont_repeat (void) | |
9e0b60a8 | 713 | { |
f38d3ad1 PA |
714 | struct ui *ui = current_ui; |
715 | ||
47a80e90 | 716 | if (suppress_dont_repeat || server_command) |
d318976c | 717 | return; |
9e0b60a8 | 718 | |
d318976c | 719 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
720 | thing read from stdin in line and don't want to delete it. Null |
721 | lines won't repeat here in any case. */ | |
268a799a | 722 | if (ui->instream == ui->stdin_stream) |
dc7eb48e | 723 | *saved_command_line = 0; |
9e0b60a8 | 724 | } |
47a80e90 TT |
725 | |
726 | /* Prevent dont_repeat from working, and return a cleanup that | |
727 | restores the previous state. */ | |
728 | ||
1ac32117 | 729 | scoped_restore_tmpl<int> |
47a80e90 TT |
730 | prevent_dont_repeat (void) |
731 | { | |
1ac32117 | 732 | return make_scoped_restore (&suppress_dont_repeat, 1); |
47a80e90 TT |
733 | } |
734 | ||
d318976c FN |
735 | \f |
736 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 737 | |
7a3bde34 | 738 | It prints PROMPT once at the start. |
d318976c FN |
739 | Action is compatible with "readline", e.g. space for the result is |
740 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 741 | |
d318976c | 742 | A NULL return means end of file. */ |
c5c136ea PA |
743 | |
744 | static char * | |
7a3bde34 | 745 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 746 | { |
7a3bde34 | 747 | struct buffer line_buffer; |
f38d3ad1 | 748 | struct ui *ui = current_ui; |
3212b858 PA |
749 | /* Read from stdin if we are executing a user defined command. This |
750 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 751 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 752 | int fd = fileno (stream); |
9e0b60a8 | 753 | |
7a3bde34 PA |
754 | buffer_init (&line_buffer); |
755 | ||
756 | if (prompt != NULL) | |
9e0b60a8 | 757 | { |
d318976c FN |
758 | /* Don't use a _filtered function here. It causes the assumed |
759 | character position to be off, since the newline we read from | |
760 | the user is not accounted for. */ | |
7a3bde34 | 761 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
762 | gdb_flush (gdb_stdout); |
763 | } | |
764 | ||
9e0b60a8 JM |
765 | while (1) |
766 | { | |
7a3bde34 | 767 | int c; |
3212b858 PA |
768 | int numfds; |
769 | fd_set readfds; | |
7a3bde34 | 770 | |
3212b858 PA |
771 | QUIT; |
772 | ||
773 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 774 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
775 | FD_ZERO (&readfds); |
776 | FD_SET (fd, &readfds); | |
f0881b37 | 777 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
778 | { |
779 | if (errno == EINTR) | |
780 | { | |
781 | /* If this was ctrl-c, the QUIT above handles it. */ | |
782 | continue; | |
783 | } | |
784 | perror_with_name (("select")); | |
785 | } | |
786 | ||
787 | c = fgetc (stream); | |
9e0b60a8 | 788 | |
d318976c | 789 | if (c == EOF) |
9e0b60a8 | 790 | { |
7a3bde34 | 791 | if (line_buffer.used_size > 0) |
d318976c FN |
792 | /* The last line does not end with a newline. Return it, and |
793 | if we are called again fgetc will still return EOF and | |
794 | we'll return NULL then. */ | |
9e0b60a8 | 795 | break; |
7a3bde34 | 796 | xfree (buffer_finish (&line_buffer)); |
d318976c | 797 | return NULL; |
9e0b60a8 | 798 | } |
c5aa993b | 799 | |
d318976c | 800 | if (c == '\n') |
9e0b60a8 | 801 | { |
7a3bde34 PA |
802 | if (line_buffer.used_size > 0 |
803 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
804 | line_buffer.used_size--; | |
d318976c | 805 | break; |
9e0b60a8 | 806 | } |
9e0b60a8 | 807 | |
7a3bde34 | 808 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
809 | } |
810 | ||
7a3bde34 PA |
811 | buffer_grow_char (&line_buffer, '\0'); |
812 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
813 | } |
814 | ||
d318976c FN |
815 | /* Variables which control command line editing and history |
816 | substitution. These variables are given default values at the end | |
817 | of this file. */ | |
818 | static int command_editing_p; | |
920d2a44 | 819 | |
d318976c FN |
820 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
821 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 822 | event-top.c into this file, top.c. */ |
920d2a44 | 823 | |
d318976c | 824 | /* static */ int history_expansion_p; |
920d2a44 | 825 | |
d318976c | 826 | static int write_history_p; |
920d2a44 AC |
827 | static void |
828 | show_write_history_p (struct ui_file *file, int from_tty, | |
829 | struct cmd_list_element *c, const char *value) | |
830 | { | |
831 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
832 | value); | |
833 | } | |
834 | ||
840a9a1f | 835 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
836 | command. The value -1 means unlimited, and -2 means undefined. */ |
837 | static int history_size_setshow_var = -2; | |
840a9a1f | 838 | |
920d2a44 AC |
839 | static void |
840 | show_history_size (struct ui_file *file, int from_tty, | |
841 | struct cmd_list_element *c, const char *value) | |
842 | { | |
843 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
844 | value); | |
845 | } | |
846 | ||
fc637f04 PP |
847 | /* Variable associated with the "history remove-duplicates" option. |
848 | The value -1 means unlimited. */ | |
849 | static int history_remove_duplicates = 0; | |
850 | ||
851 | static void | |
852 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
853 | struct cmd_list_element *c, const char *value) | |
854 | { | |
855 | fprintf_filtered (file, | |
856 | _("The number of history entries to look back at for " | |
857 | "duplicates is %s.\n"), | |
858 | value); | |
859 | } | |
860 | ||
d318976c | 861 | static char *history_filename; |
920d2a44 AC |
862 | static void |
863 | show_history_filename (struct ui_file *file, int from_tty, | |
864 | struct cmd_list_element *c, const char *value) | |
865 | { | |
3e43a32a MS |
866 | fprintf_filtered (file, _("The filename in which to record " |
867 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
868 | value); |
869 | } | |
9e0b60a8 | 870 | |
b4f5539f | 871 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 872 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
873 | a single gdb invocation. At the ordinary top-level prompt we might |
874 | be using the async readline. That means we can't use | |
875 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
876 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
877 | `define'), gdb wants a synchronous response. |
878 | ||
879 | We used to call readline() directly, running it in synchronous | |
880 | mode. But mixing modes this way is not supported, and as of | |
881 | readline 5.x it no longer works; the arrow keys come unbound during | |
882 | the synchronous call. So we make a nested call into the event | |
883 | loop. That's what gdb_readline_wrapper is for. */ | |
884 | ||
885 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
886 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
887 | the user types Control-D for EOF. */ | |
888 | static int gdb_readline_wrapper_done; | |
889 | ||
890 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
891 | is seen. */ | |
892 | static char *gdb_readline_wrapper_result; | |
893 | ||
894 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
895 | to be called after the newline is processed (which will redisplay | |
896 | the prompt). But in gdb_readline_wrapper we will not get a new | |
897 | prompt until the next call, or until we return to the event loop. | |
898 | So we disable this hook around the newline and restore it before we | |
899 | return. */ | |
900 | static void (*saved_after_char_processing_hook) (void); | |
901 | ||
948578a9 | 902 | |
948578a9 PP |
903 | /* See top.h. */ |
904 | ||
905 | int | |
dbf30ca3 | 906 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 907 | { |
dbf30ca3 | 908 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
909 | } |
910 | ||
911 | ||
2e03ee74 DJ |
912 | /* This function is called when readline has seen a complete line of |
913 | text. */ | |
914 | ||
915 | static void | |
916 | gdb_readline_wrapper_line (char *line) | |
917 | { | |
918 | gdb_assert (!gdb_readline_wrapper_done); | |
919 | gdb_readline_wrapper_result = line; | |
920 | gdb_readline_wrapper_done = 1; | |
921 | ||
922 | /* Prevent operate-and-get-next from acting too early. */ | |
923 | saved_after_char_processing_hook = after_char_processing_hook; | |
924 | after_char_processing_hook = NULL; | |
1b05479a DJ |
925 | |
926 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 927 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
928 | reinstall the callback handler, which puts the terminal in raw |
929 | mode (or in readline lingo, in prepped state), when we're next | |
930 | ready to process user input, either in display_gdb_prompt, or if | |
931 | we're handling an asynchronous target event and running in the | |
932 | background, just before returning to the event loop to process | |
933 | further input (or more target events). */ | |
3c216924 | 934 | if (current_ui->command_editing) |
d3d4baed | 935 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
936 | } |
937 | ||
938 | struct gdb_readline_wrapper_cleanup | |
939 | { | |
940 | void (*handler_orig) (char *); | |
2e03ee74 | 941 | int already_prompted_orig; |
93d6eb10 PA |
942 | |
943 | /* Whether the target was async. */ | |
944 | int target_is_async_orig; | |
2e03ee74 DJ |
945 | }; |
946 | ||
947 | static void | |
948 | gdb_readline_wrapper_cleanup (void *arg) | |
949 | { | |
a74e1786 | 950 | struct ui *ui = current_ui; |
19ba03f4 SM |
951 | struct gdb_readline_wrapper_cleanup *cleanup |
952 | = (struct gdb_readline_wrapper_cleanup *) arg; | |
2e03ee74 | 953 | |
3c216924 PA |
954 | if (ui->command_editing) |
955 | rl_already_prompted = cleanup->already_prompted_orig; | |
2e03ee74 | 956 | |
a74e1786 PA |
957 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
958 | ui->input_handler = cleanup->handler_orig; | |
0017922d | 959 | |
d3d4baed PA |
960 | /* Don't restore our input handler in readline yet. That would make |
961 | readline prep the terminal (putting it in raw mode), while the | |
962 | line we just read may trigger execution of a command that expects | |
963 | the terminal in the default cooked/canonical mode, such as e.g., | |
964 | running Python's interactive online help utility. See | |
965 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
0017922d | 966 | |
2e03ee74 DJ |
967 | gdb_readline_wrapper_result = NULL; |
968 | gdb_readline_wrapper_done = 0; | |
dbf30ca3 PA |
969 | ui->secondary_prompt_depth--; |
970 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
2e03ee74 DJ |
971 | |
972 | after_char_processing_hook = saved_after_char_processing_hook; | |
973 | saved_after_char_processing_hook = NULL; | |
974 | ||
93d6eb10 | 975 | if (cleanup->target_is_async_orig) |
6a3753b3 | 976 | target_async (1); |
93d6eb10 | 977 | |
2e03ee74 DJ |
978 | xfree (cleanup); |
979 | } | |
980 | ||
b4f5539f | 981 | char * |
38bcc89d | 982 | gdb_readline_wrapper (const char *prompt) |
b4f5539f | 983 | { |
a74e1786 | 984 | struct ui *ui = current_ui; |
2e03ee74 DJ |
985 | struct cleanup *back_to; |
986 | struct gdb_readline_wrapper_cleanup *cleanup; | |
987 | char *retval; | |
988 | ||
8d749320 | 989 | cleanup = XNEW (struct gdb_readline_wrapper_cleanup); |
a74e1786 PA |
990 | cleanup->handler_orig = ui->input_handler; |
991 | ui->input_handler = gdb_readline_wrapper_line; | |
2e03ee74 | 992 | |
3c216924 PA |
993 | if (ui->command_editing) |
994 | cleanup->already_prompted_orig = rl_already_prompted; | |
995 | else | |
996 | cleanup->already_prompted_orig = 0; | |
2e03ee74 | 997 | |
93d6eb10 PA |
998 | cleanup->target_is_async_orig = target_is_async_p (); |
999 | ||
dbf30ca3 | 1000 | ui->secondary_prompt_depth++; |
2e03ee74 DJ |
1001 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); |
1002 | ||
4295e285 | 1003 | /* Processing events may change the current UI. */ |
4b6749b9 | 1004 | scoped_restore save_ui = make_scoped_restore (¤t_ui); |
4295e285 | 1005 | |
93d6eb10 | 1006 | if (cleanup->target_is_async_orig) |
6a3753b3 | 1007 | target_async (0); |
93d6eb10 | 1008 | |
6e5d74e7 PA |
1009 | /* Display our prompt and prevent double prompt display. Don't pass |
1010 | down a NULL prompt, since that has special meaning for | |
1011 | display_gdb_prompt -- it indicates a request to print the primary | |
1012 | prompt, while we want a secondary prompt here. */ | |
1013 | display_gdb_prompt (prompt != NULL ? prompt : ""); | |
3c216924 PA |
1014 | if (ui->command_editing) |
1015 | rl_already_prompted = 1; | |
2e03ee74 | 1016 | |
362646f5 | 1017 | if (after_char_processing_hook) |
2e03ee74 DJ |
1018 | (*after_char_processing_hook) (); |
1019 | gdb_assert (after_char_processing_hook == NULL); | |
1020 | ||
e0dd0826 | 1021 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1022 | if (gdb_readline_wrapper_done) |
1023 | break; | |
b4f5539f | 1024 | |
2e03ee74 DJ |
1025 | retval = gdb_readline_wrapper_result; |
1026 | do_cleanups (back_to); | |
1027 | return retval; | |
b4f5539f TT |
1028 | } |
1029 | ||
9e0b60a8 | 1030 | \f |
467d8519 TT |
1031 | /* The current saved history number from operate-and-get-next. |
1032 | This is -1 if not valid. */ | |
1033 | static int operate_saved_history = -1; | |
1034 | ||
1035 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1036 | do its work. */ | |
b9362cc7 | 1037 | static void |
5ae5f592 | 1038 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1039 | { |
1040 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1041 | |
467d8519 TT |
1042 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1043 | rl_get_previous_history (delta, 0); | |
1044 | operate_saved_history = -1; | |
1045 | ||
1046 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1047 | rl_redisplay (); |
467d8519 TT |
1048 | |
1049 | after_char_processing_hook = NULL; | |
1050 | rl_pre_input_hook = NULL; | |
1051 | } | |
1052 | ||
1053 | /* This is a gdb-local readline command handler. It accepts the | |
1054 | current command line (like RET does) and, if this command was taken | |
1055 | from the history, arranges for the next command in the history to | |
1056 | appear on the command line when the prompt returns. | |
1057 | We ignore the arguments. */ | |
1058 | static int | |
1059 | gdb_rl_operate_and_get_next (int count, int key) | |
1060 | { | |
b5686e99 MK |
1061 | int where; |
1062 | ||
362646f5 AC |
1063 | /* Use the async hook. */ |
1064 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1065 | |
b5686e99 MK |
1066 | /* Find the current line, and find the next line to use. */ |
1067 | where = where_history(); | |
1068 | ||
1fb2e2b5 PA |
1069 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1070 | || (where >= history_length - 1)) | |
b5686e99 MK |
1071 | operate_saved_history = where; |
1072 | else | |
1073 | operate_saved_history = where + 1; | |
1074 | ||
467d8519 TT |
1075 | return rl_newline (1, key); |
1076 | } | |
08b13bdd PP |
1077 | |
1078 | /* Number of user commands executed during this session. */ | |
1079 | ||
1080 | static int command_count = 0; | |
1081 | ||
1082 | /* Add the user command COMMAND to the input history list. */ | |
1083 | ||
1084 | void | |
1085 | gdb_add_history (const char *command) | |
1086 | { | |
08b13bdd | 1087 | command_count++; |
fc637f04 PP |
1088 | |
1089 | if (history_remove_duplicates != 0) | |
1090 | { | |
1091 | int lookbehind; | |
1092 | int lookbehind_threshold; | |
1093 | ||
1094 | /* The lookbehind threshold for finding a duplicate history entry is | |
1095 | bounded by command_count because we can't meaningfully delete | |
1096 | history entries that are already stored in the history file since | |
1097 | the history file is appended to. */ | |
1098 | if (history_remove_duplicates == -1 | |
1099 | || history_remove_duplicates > command_count) | |
1100 | lookbehind_threshold = command_count; | |
1101 | else | |
1102 | lookbehind_threshold = history_remove_duplicates; | |
1103 | ||
1104 | using_history (); | |
1105 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1106 | { | |
1107 | HIST_ENTRY *temp = previous_history (); | |
1108 | ||
1109 | if (temp == NULL) | |
1110 | break; | |
1111 | ||
1112 | if (strcmp (temp->line, command) == 0) | |
1113 | { | |
1114 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1115 | command_count--; | |
1116 | free_history_entry (prev); | |
1117 | break; | |
1118 | } | |
1119 | } | |
1120 | using_history (); | |
1121 | } | |
1122 | ||
1123 | add_history (command); | |
08b13bdd PP |
1124 | } |
1125 | ||
1126 | /* Safely append new history entries to the history file in a corruption-free | |
1127 | way using an intermediate local history file. */ | |
1128 | ||
1129 | static void | |
1130 | gdb_safe_append_history (void) | |
1131 | { | |
1132 | int ret, saved_errno; | |
1133 | char *local_history_filename; | |
1134 | struct cleanup *old_chain; | |
1135 | ||
1136 | local_history_filename | |
b196bc4c | 1137 | = xstrprintf ("%s-gdb%ld~", history_filename, (long) getpid ()); |
08b13bdd PP |
1138 | old_chain = make_cleanup (xfree, local_history_filename); |
1139 | ||
1140 | ret = rename (history_filename, local_history_filename); | |
1141 | saved_errno = errno; | |
1142 | if (ret < 0 && saved_errno != ENOENT) | |
1143 | { | |
1144 | warning (_("Could not rename %s to %s: %s"), | |
1145 | history_filename, local_history_filename, | |
1146 | safe_strerror (saved_errno)); | |
1147 | } | |
1148 | else | |
1149 | { | |
1150 | if (ret < 0) | |
1151 | { | |
1152 | /* If the rename failed with ENOENT then either the global history | |
1153 | file never existed in the first place or another GDB process is | |
1154 | currently appending to it (and has thus temporarily renamed it). | |
1155 | Since we can't distinguish between these two cases, we have to | |
1156 | conservatively assume the first case and therefore must write out | |
1157 | (not append) our known history to our local history file and try | |
1158 | to move it back anyway. Otherwise a global history file would | |
1159 | never get created! */ | |
1160 | gdb_assert (saved_errno == ENOENT); | |
1161 | write_history (local_history_filename); | |
1162 | } | |
1163 | else | |
1164 | { | |
1165 | append_history (command_count, local_history_filename); | |
2093d2d3 PP |
1166 | if (history_is_stifled ()) |
1167 | history_truncate_file (local_history_filename, history_max_entries); | |
08b13bdd PP |
1168 | } |
1169 | ||
1170 | ret = rename (local_history_filename, history_filename); | |
1171 | saved_errno = errno; | |
1172 | if (ret < 0 && saved_errno != EEXIST) | |
1173 | warning (_("Could not rename %s to %s: %s"), | |
1174 | local_history_filename, history_filename, | |
1175 | safe_strerror (saved_errno)); | |
1176 | } | |
1177 | ||
1178 | do_cleanups (old_chain); | |
1179 | } | |
1180 | ||
b69d38af PA |
1181 | /* Read one line from the command input stream `instream' into a local |
1182 | static buffer. The buffer is made bigger as necessary. Returns | |
1183 | the address of the start of the line. | |
9e0b60a8 | 1184 | |
d318976c | 1185 | NULL is returned for end of file. |
9e0b60a8 | 1186 | |
268a799a | 1187 | *If* input is from an interactive stream (stdin), the line read is |
b69d38af PA |
1188 | copied into the global 'saved_command_line' so that it can be |
1189 | repeated. | |
9e0b60a8 | 1190 | |
b69d38af PA |
1191 | This routine either uses fancy command line editing or simple input |
1192 | as the user has requested. */ | |
10689f25 | 1193 | |
d318976c | 1194 | char * |
a121b7c1 PA |
1195 | command_line_input (const char *prompt_arg, int repeat, |
1196 | const char *annotation_suffix) | |
9e0b60a8 | 1197 | { |
b69d38af PA |
1198 | static struct buffer cmd_line_buffer; |
1199 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1200 | struct ui *ui = current_ui; |
38bcc89d | 1201 | const char *prompt = prompt_arg; |
b69d38af | 1202 | char *cmd; |
268a799a | 1203 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1204 | |
1205 | /* The annotation suffix must be non-NULL. */ | |
1206 | if (annotation_suffix == NULL) | |
1207 | annotation_suffix = ""; | |
9e0b60a8 | 1208 | |
268a799a | 1209 | if (from_tty && annotation_level > 1) |
d318976c | 1210 | { |
38bcc89d SM |
1211 | char *local_prompt; |
1212 | ||
224c3ddb SM |
1213 | local_prompt |
1214 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1215 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1216 | if (prompt == NULL) |
d318976c FN |
1217 | local_prompt[0] = '\0'; |
1218 | else | |
38bcc89d | 1219 | strcpy (local_prompt, prompt); |
d318976c FN |
1220 | strcat (local_prompt, "\n\032\032"); |
1221 | strcat (local_prompt, annotation_suffix); | |
1222 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1223 | |
1224 | prompt = local_prompt; | |
d318976c | 1225 | } |
9e0b60a8 | 1226 | |
b69d38af | 1227 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1228 | { |
b69d38af PA |
1229 | buffer_init (&cmd_line_buffer); |
1230 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1231 | } |
9e0b60a8 | 1232 | |
b69d38af PA |
1233 | /* Starting a new command line. */ |
1234 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1235 | |
d318976c FN |
1236 | #ifdef STOP_SIGNAL |
1237 | if (job_control) | |
362646f5 | 1238 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
1239 | #endif |
1240 | ||
1241 | while (1) | |
9e0b60a8 | 1242 | { |
b69d38af PA |
1243 | char *rl; |
1244 | ||
371d5dec MS |
1245 | /* Make sure that all output has been output. Some machines may |
1246 | let you get away with leaving out some of the gdb_flush, but | |
1247 | not all. */ | |
d318976c FN |
1248 | wrap_here (""); |
1249 | gdb_flush (gdb_stdout); | |
1250 | gdb_flush (gdb_stderr); | |
1251 | ||
1252 | if (source_file_name != NULL) | |
637537d0 | 1253 | ++source_line_number; |
d318976c | 1254 | |
268a799a | 1255 | if (from_tty && annotation_level > 1) |
d318976c | 1256 | { |
306d9ac5 DC |
1257 | puts_unfiltered ("\n\032\032pre-"); |
1258 | puts_unfiltered (annotation_suffix); | |
1259 | puts_unfiltered ("\n"); | |
d318976c FN |
1260 | } |
1261 | ||
1262 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1263 | if (deprecated_readline_hook |
1264 | && from_tty | |
1265 | && input_interactive_p (current_ui)) | |
d318976c | 1266 | { |
38bcc89d | 1267 | rl = (*deprecated_readline_hook) (prompt); |
d318976c | 1268 | } |
268a799a PA |
1269 | else if (command_editing_p |
1270 | && from_tty | |
1271 | && input_interactive_p (current_ui)) | |
d318976c | 1272 | { |
38bcc89d | 1273 | rl = gdb_readline_wrapper (prompt); |
d318976c | 1274 | } |
9e0b60a8 | 1275 | else |
d318976c | 1276 | { |
c5c136ea | 1277 | rl = gdb_readline_no_editing (prompt); |
d318976c | 1278 | } |
9e0b60a8 | 1279 | |
b69d38af PA |
1280 | cmd = handle_line_of_input (&cmd_line_buffer, rl, |
1281 | repeat, annotation_suffix); | |
1282 | if (cmd == (char *) EOF) | |
d318976c | 1283 | { |
b69d38af | 1284 | cmd = NULL; |
d318976c | 1285 | break; |
9e0b60a8 | 1286 | } |
b69d38af | 1287 | if (cmd != NULL) |
d318976c | 1288 | break; |
9e0b60a8 | 1289 | |
6e5d74e7 PA |
1290 | /* Got partial input. I.e., got a line that ends with a |
1291 | continuation character (backslash). Suppress printing the | |
1292 | prompt again. */ | |
38bcc89d | 1293 | prompt = NULL; |
d318976c | 1294 | } |
9e0b60a8 | 1295 | |
d318976c FN |
1296 | #ifdef STOP_SIGNAL |
1297 | if (job_control) | |
1298 | signal (STOP_SIGNAL, SIG_DFL); | |
1299 | #endif | |
9e0b60a8 | 1300 | |
b69d38af | 1301 | return cmd; |
9e0b60a8 JM |
1302 | } |
1303 | \f | |
371d5dec | 1304 | /* Print the GDB banner. */ |
9e0b60a8 | 1305 | void |
fba45db2 | 1306 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1307 | { |
1308 | /* From GNU coding standards, first line is meant to be easy for a | |
1309 | program to parse, and is just canonical program name and version | |
371d5dec | 1310 | number, which starts after last space. */ |
9e0b60a8 | 1311 | |
c16158bc | 1312 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1313 | |
371d5dec | 1314 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1315 | |
3e43a32a | 1316 | fprintf_filtered (stream, |
61baf725 | 1317 | "Copyright (C) 2017 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1318 | |
1319 | /* Following the copyright is a brief statement that the program is | |
1320 | free software, that users are free to copy and change it on | |
1321 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1322 | there is no warranty. */ |
9e0b60a8 JM |
1323 | |
1324 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1325 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1326 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1327 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1328 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1329 | |
371d5dec | 1330 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1331 | |
1332 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1333 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1334 | { |
3e43a32a MS |
1335 | fprintf_filtered (stream, "--host=%s --target=%s", |
1336 | host_name, target_name); | |
9e0b60a8 JM |
1337 | } |
1338 | else | |
1339 | { | |
1340 | fprintf_filtered (stream, "%s", host_name); | |
1341 | } | |
6eaaf48b EZ |
1342 | fprintf_filtered (stream, "\".\n\ |
1343 | Type \"show configuration\" for configuration details."); | |
c16158bc JM |
1344 | |
1345 | if (REPORT_BUGS_TO[0]) | |
1346 | { | |
6eaaf48b | 1347 | fprintf_filtered (stream, |
c16158bc | 1348 | _("\nFor bug reporting instructions, please see:\n")); |
1cf55f60 | 1349 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1350 | } |
1cf55f60 PM |
1351 | fprintf_filtered (stream, |
1352 | _("Find the GDB manual and other documentation \ | |
1353 | resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n")); | |
1354 | fprintf_filtered (stream, _("For help, type \"help\".\n")); | |
1355 | fprintf_filtered (stream, _("Type \"apropos word\" to search for \ | |
af4c453a | 1356 | commands related to \"word\".")); |
9e0b60a8 | 1357 | } |
6eaaf48b EZ |
1358 | |
1359 | /* Print the details of GDB build-time configuration. */ | |
1360 | void | |
1361 | print_gdb_configuration (struct ui_file *stream) | |
1362 | { | |
1363 | fprintf_filtered (stream, _("\ | |
1364 | This GDB was configured as follows:\n\ | |
1365 | configure --host=%s --target=%s\n\ | |
1366 | "), host_name, target_name); | |
1367 | fprintf_filtered (stream, _("\ | |
1368 | --with-auto-load-dir=%s\n\ | |
1369 | --with-auto-load-safe-path=%s\n\ | |
1370 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1371 | #if HAVE_LIBEXPAT | |
1372 | fprintf_filtered (stream, _("\ | |
1373 | --with-expat\n\ | |
1374 | ")); | |
1375 | #else | |
1376 | fprintf_filtered (stream, _("\ | |
1377 | --without-expat\n\ | |
1378 | ")); | |
1379 | #endif | |
1380 | if (GDB_DATADIR[0]) | |
1381 | fprintf_filtered (stream, _("\ | |
1382 | --with-gdb-datadir=%s%s\n\ | |
1383 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1384 | #ifdef ICONV_BIN | |
1385 | fprintf_filtered (stream, _("\ | |
1386 | --with-iconv-bin=%s%s\n\ | |
1387 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1388 | #endif | |
1389 | if (JIT_READER_DIR[0]) | |
1390 | fprintf_filtered (stream, _("\ | |
1391 | --with-jit-reader-dir=%s%s\n\ | |
1392 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1393 | #if HAVE_LIBUNWIND_IA64_H | |
1394 | fprintf_filtered (stream, _("\ | |
1395 | --with-libunwind-ia64\n\ | |
1396 | ")); | |
1397 | #else | |
1398 | fprintf_filtered (stream, _("\ | |
1399 | --without-libunwind-ia64\n\ | |
1400 | ")); | |
1401 | #endif | |
1402 | #if HAVE_LIBLZMA | |
1403 | fprintf_filtered (stream, _("\ | |
1404 | --with-lzma\n\ | |
1405 | ")); | |
1406 | #else | |
1407 | fprintf_filtered (stream, _("\ | |
1408 | --without-lzma\n\ | |
1409 | ")); | |
1410 | #endif | |
1411 | #ifdef WITH_PYTHON_PATH | |
1412 | fprintf_filtered (stream, _("\ | |
1413 | --with-python=%s%s\n\ | |
1414 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
1415 | #endif | |
97d66cc6 EZ |
1416 | #if HAVE_GUILE |
1417 | fprintf_filtered (stream, _("\ | |
1418 | --with-guile\n\ | |
1419 | ")); | |
1420 | #else | |
1421 | fprintf_filtered (stream, _("\ | |
1422 | --without-guile\n\ | |
1423 | ")); | |
1424 | #endif | |
6eaaf48b EZ |
1425 | #ifdef RELOC_SRCDIR |
1426 | fprintf_filtered (stream, _("\ | |
1427 | --with-relocated-sources=%s\n\ | |
1428 | "), RELOC_SRCDIR); | |
1429 | #endif | |
1430 | if (DEBUGDIR[0]) | |
1431 | fprintf_filtered (stream, _("\ | |
1432 | --with-separate-debug-dir=%s%s\n\ | |
1433 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1434 | if (TARGET_SYSTEM_ROOT[0]) | |
1435 | fprintf_filtered (stream, _("\ | |
1436 | --with-sysroot=%s%s\n\ | |
1437 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1438 | if (SYSTEM_GDBINIT[0]) | |
1439 | fprintf_filtered (stream, _("\ | |
1440 | --with-system-gdbinit=%s%s\n\ | |
1441 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
ab116149 YQ |
1442 | #if HAVE_LIBBABELTRACE |
1443 | fprintf_filtered (stream, _("\ | |
1444 | --with-babeltrace\n\ | |
1445 | ")); | |
1446 | #else | |
1447 | fprintf_filtered (stream, _("\ | |
1448 | --without-babeltrace\n\ | |
1449 | ")); | |
1450 | #endif | |
48d1d6f5 EZ |
1451 | /* We assume "relocatable" will be printed at least once, thus we always |
1452 | print this text. It's a reasonably safe assumption for now. */ | |
1453 | fprintf_filtered (stream, _("\n\ | |
1454 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1455 | tree, and GDB will still find it.)\n\ | |
1456 | ")); | |
6eaaf48b | 1457 | } |
9e0b60a8 | 1458 | \f |
95298e72 | 1459 | |
ab821bc6 PA |
1460 | /* The current top level prompt, settable with "set prompt", and/or |
1461 | with the python `gdb.prompt_hook' hook. */ | |
1462 | static char *top_prompt; | |
9e0b60a8 | 1463 | |
ab821bc6 | 1464 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1465 | |
1466 | char * | |
ab821bc6 | 1467 | get_prompt (void) |
95298e72 | 1468 | { |
ab821bc6 | 1469 | return top_prompt; |
95298e72 PM |
1470 | } |
1471 | ||
ab821bc6 | 1472 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1473 | |
1474 | void | |
ab821bc6 | 1475 | set_prompt (const char *s) |
95298e72 | 1476 | { |
ab821bc6 | 1477 | char *p = xstrdup (s); |
95298e72 | 1478 | |
ab821bc6 PA |
1479 | xfree (top_prompt); |
1480 | top_prompt = p; | |
9e0b60a8 | 1481 | } |
9e0b60a8 | 1482 | \f |
c5aa993b | 1483 | |
b0abbc58 | 1484 | struct qt_args |
9e0b60a8 | 1485 | { |
b0abbc58 JJ |
1486 | char *args; |
1487 | int from_tty; | |
1488 | }; | |
9e0b60a8 | 1489 | |
54a012c9 PA |
1490 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1491 | inferior, depending on how we originally gained control of it. */ | |
1492 | ||
1493 | static int | |
1494 | kill_or_detach (struct inferior *inf, void *args) | |
1495 | { | |
19ba03f4 | 1496 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 PA |
1497 | struct thread_info *thread; |
1498 | ||
6c95b8df PA |
1499 | if (inf->pid == 0) |
1500 | return 0; | |
1501 | ||
b8fa0bfa PA |
1502 | thread = any_thread_of_process (inf->pid); |
1503 | if (thread != NULL) | |
9e0b60a8 | 1504 | { |
54a012c9 | 1505 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1506 | |
1507 | /* Leave core files alone. */ | |
1508 | if (target_has_execution) | |
1509 | { | |
1510 | if (inf->attach_flag) | |
1511 | target_detach (qt->args, qt->from_tty); | |
1512 | else | |
1513 | target_kill (); | |
1514 | } | |
9e0b60a8 JM |
1515 | } |
1516 | ||
54a012c9 PA |
1517 | return 0; |
1518 | } | |
1519 | ||
b8fa0bfa PA |
1520 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1521 | will do to each inferior on a "quit". ARG points to a struct | |
1522 | ui_out where output is to be collected. */ | |
1523 | ||
1524 | static int | |
1525 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1526 | { | |
19ba03f4 | 1527 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1528 | |
6c95b8df PA |
1529 | if (inf->pid == 0) |
1530 | return 0; | |
1531 | ||
b8fa0bfa PA |
1532 | if (inf->attach_flag) |
1533 | fprintf_filtered (stb, | |
1534 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1535 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1536 | else | |
1537 | fprintf_filtered (stb, | |
1538 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1539 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1540 | ||
1541 | return 0; | |
1542 | } | |
1543 | ||
1544 | /* If necessary, make the user confirm that we should quit. Return | |
1545 | non-zero if we should quit, zero if we shouldn't. */ | |
1546 | ||
1547 | int | |
1548 | quit_confirm (void) | |
1549 | { | |
b8fa0bfa PA |
1550 | /* Don't even ask if we're only debugging a core file inferior. */ |
1551 | if (!have_live_inferiors ()) | |
1552 | return 1; | |
1553 | ||
1554 | /* Build the query string as a single string. */ | |
d7e74731 | 1555 | string_file stb; |
b8fa0bfa | 1556 | |
d7e74731 PA |
1557 | stb.puts (_("A debugging session is active.\n\n")); |
1558 | iterate_over_inferiors (print_inferior_quit_action, &stb); | |
1559 | stb.puts (_("\nQuit anyway? ")); | |
7b01d34b | 1560 | |
d7e74731 | 1561 | return query ("%s", stb.c_str ()); |
b8fa0bfa PA |
1562 | } |
1563 | ||
18206ca3 PP |
1564 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1565 | terminal so that we leave the terminal in the state we acquired it. */ | |
1566 | ||
1567 | static void | |
1568 | undo_terminal_modifications_before_exit (void) | |
1569 | { | |
3c216924 PA |
1570 | struct ui *saved_top_level = current_ui; |
1571 | ||
18206ca3 | 1572 | target_terminal_ours (); |
3c216924 PA |
1573 | |
1574 | current_ui = main_ui; | |
1575 | ||
18206ca3 PP |
1576 | #if defined(TUI) |
1577 | tui_disable (); | |
1578 | #endif | |
3c216924 PA |
1579 | gdb_disable_readline (); |
1580 | ||
1581 | current_ui = saved_top_level; | |
18206ca3 PP |
1582 | } |
1583 | ||
1584 | ||
b0abbc58 JJ |
1585 | /* Quit without asking for confirmation. */ |
1586 | ||
1587 | void | |
36cf1806 | 1588 | quit_force (int *exit_arg, int from_tty) |
b0abbc58 JJ |
1589 | { |
1590 | int exit_code = 0; | |
365c70b1 | 1591 | struct qt_args qt; |
b0abbc58 | 1592 | |
18206ca3 PP |
1593 | undo_terminal_modifications_before_exit (); |
1594 | ||
b0abbc58 | 1595 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1596 | value of that expression. */ |
36cf1806 TT |
1597 | if (exit_arg) |
1598 | exit_code = *exit_arg; | |
4b0ad762 AS |
1599 | else if (return_child_result) |
1600 | exit_code = return_child_result_value; | |
b0abbc58 | 1601 | |
36cf1806 | 1602 | qt.args = NULL; |
365c70b1 JJ |
1603 | qt.from_tty = from_tty; |
1604 | ||
b0abbc58 | 1605 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1606 | |
1607 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
492d29ea | 1608 | TRY |
2f9d54cf PA |
1609 | { |
1610 | disconnect_tracing (); | |
1611 | iterate_over_inferiors (kill_or_detach, &qt); | |
1612 | } | |
492d29ea PA |
1613 | CATCH (ex, RETURN_MASK_ALL) |
1614 | { | |
1615 | exception_print (gdb_stderr, ex); | |
1616 | } | |
1617 | END_CATCH | |
2f9d54cf PA |
1618 | |
1619 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1620 | them all out. */ | |
492d29ea | 1621 | TRY |
2f9d54cf PA |
1622 | { |
1623 | pop_all_targets (); | |
1624 | } | |
492d29ea PA |
1625 | CATCH (ex, RETURN_MASK_ALL) |
1626 | { | |
1627 | exception_print (gdb_stderr, ex); | |
1628 | } | |
1629 | END_CATCH | |
2f9d54cf PA |
1630 | |
1631 | /* Save the history information if it is appropriate to do so. */ | |
492d29ea | 1632 | TRY |
2f9d54cf | 1633 | { |
268a799a PA |
1634 | if (write_history_p && history_filename) |
1635 | { | |
1636 | struct ui *ui; | |
1637 | int save = 0; | |
1638 | ||
1639 | /* History is currently shared between all UIs. If there's | |
1640 | any UI with a terminal, save history. */ | |
1641 | ALL_UIS (ui) | |
1642 | { | |
1643 | if (input_interactive_p (ui)) | |
1644 | { | |
1645 | save = 1; | |
1646 | break; | |
1647 | } | |
1648 | } | |
1649 | ||
1650 | if (save) | |
1651 | gdb_safe_append_history (); | |
1652 | } | |
2f9d54cf | 1653 | } |
492d29ea PA |
1654 | CATCH (ex, RETURN_MASK_ALL) |
1655 | { | |
1656 | exception_print (gdb_stderr, ex); | |
1657 | } | |
1658 | END_CATCH | |
2f9d54cf PA |
1659 | |
1660 | /* Do any final cleanups before exiting. */ | |
492d29ea | 1661 | TRY |
2f9d54cf PA |
1662 | { |
1663 | do_final_cleanups (all_cleanups ()); | |
1664 | } | |
492d29ea PA |
1665 | CATCH (ex, RETURN_MASK_ALL) |
1666 | { | |
1667 | exception_print (gdb_stderr, ex); | |
1668 | } | |
1669 | END_CATCH | |
b0abbc58 | 1670 | |
9e0b60a8 JM |
1671 | exit (exit_code); |
1672 | } | |
1673 | ||
268a799a PA |
1674 | /* The value of the "interactive-mode" setting. */ |
1675 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1676 | |
268a799a PA |
1677 | /* Implement the "show interactive-mode" option. */ |
1678 | ||
1679 | static void | |
1680 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1681 | struct cmd_list_element *c, | |
1682 | const char *value) | |
9e0b60a8 | 1683 | { |
268a799a PA |
1684 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1685 | fprintf_filtered (file, "Debugger's interactive mode " | |
1686 | "is %s (currently %s).\n", | |
d9de1fe3 | 1687 | value, input_interactive_p (current_ui) ? "on" : "off"); |
268a799a PA |
1688 | else |
1689 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1690 | } | |
1691 | ||
1692 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1693 | |
268a799a PA |
1694 | int |
1695 | input_interactive_p (struct ui *ui) | |
1696 | { | |
c63a1f86 JK |
1697 | if (batch_flag) |
1698 | return 0; | |
1699 | ||
268a799a PA |
1700 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1701 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1702 | |
268a799a | 1703 | return ui->input_interactive_p; |
9e0b60a8 JM |
1704 | } |
1705 | \f | |
9e0b60a8 | 1706 | static void |
fba45db2 | 1707 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1708 | { |
dc7eb48e PA |
1709 | /* Can't call dont_repeat here because we're not necessarily reading |
1710 | from stdin. */ | |
1711 | *saved_command_line = 0; | |
9e0b60a8 JM |
1712 | } |
1713 | \f | |
1714 | /* Functions to manipulate command line editing control variables. */ | |
1715 | ||
1716 | /* Number of commands to print in each call to show_commands. */ | |
1717 | #define Hist_print 10 | |
d318976c | 1718 | void |
fba45db2 | 1719 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1720 | { |
1721 | /* Index for history commands. Relative to history_base. */ | |
1722 | int offset; | |
1723 | ||
1724 | /* Number of the history entry which we are planning to display next. | |
1725 | Relative to history_base. */ | |
1726 | static int num = 0; | |
1727 | ||
9e0b60a8 | 1728 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1729 | |
1730 | if (args) | |
1731 | { | |
1732 | if (args[0] == '+' && args[1] == '\0') | |
1733 | /* "info editing +" should print from the stored position. */ | |
1734 | ; | |
1735 | else | |
1736 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1737 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1738 | } |
1739 | /* "show commands" means print the last Hist_print commands. */ | |
1740 | else | |
1741 | { | |
840a9a1f | 1742 | num = history_length - Hist_print; |
9e0b60a8 JM |
1743 | } |
1744 | ||
1745 | if (num < 0) | |
1746 | num = 0; | |
1747 | ||
1748 | /* If there are at least Hist_print commands, we want to display the last | |
1749 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1750 | if (history_length - num < Hist_print) |
9e0b60a8 | 1751 | { |
840a9a1f | 1752 | num = history_length - Hist_print; |
9e0b60a8 JM |
1753 | if (num < 0) |
1754 | num = 0; | |
1755 | } | |
1756 | ||
840a9a1f PA |
1757 | for (offset = num; |
1758 | offset < num + Hist_print && offset < history_length; | |
1759 | offset++) | |
9e0b60a8 JM |
1760 | { |
1761 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1762 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1763 | } |
1764 | ||
1765 | /* The next command we want to display is the next one that we haven't | |
1766 | displayed yet. */ | |
1767 | num += Hist_print; | |
1768 | ||
1769 | /* If the user repeats this command with return, it should do what | |
1770 | "show commands +" does. This is unnecessary if arg is null, | |
1771 | because "show commands +" is not useful after "show commands". */ | |
1772 | if (from_tty && args) | |
1773 | { | |
1774 | args[0] = '+'; | |
1775 | args[1] = '\0'; | |
1776 | } | |
1777 | } | |
1778 | ||
ebfd00d2 | 1779 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1780 | |
ebfd00d2 | 1781 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1782 | |
ebfd00d2 PP |
1783 | static void |
1784 | set_readline_history_size (int history_size) | |
1785 | { | |
1786 | gdb_assert (history_size >= -1); | |
840a9a1f | 1787 | |
ebfd00d2 | 1788 | if (history_size == -1) |
840a9a1f | 1789 | unstifle_history (); |
883b9c6c | 1790 | else |
ebfd00d2 PP |
1791 | stifle_history (history_size); |
1792 | } | |
1793 | ||
1794 | /* Called by do_setshow_command. */ | |
1795 | static void | |
1796 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) | |
1797 | { | |
1798 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1799 | } |
1800 | ||
d318976c | 1801 | void |
fba45db2 | 1802 | set_history (char *args, int from_tty) |
9e0b60a8 | 1803 | { |
3e43a32a MS |
1804 | printf_unfiltered (_("\"set history\" must be followed " |
1805 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1806 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1807 | } |
1808 | ||
d318976c | 1809 | void |
fba45db2 | 1810 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1811 | { |
1812 | cmd_show_list (showhistlist, from_tty, ""); | |
1813 | } | |
1814 | ||
371d5dec | 1815 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1816 | |
1817 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1818 | void |
fba45db2 | 1819 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1820 | { |
6f937416 | 1821 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1822 | struct cmd_list_element *showcmd; |
1823 | ||
1824 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1825 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1826 | |
1827 | if (info_verbose) | |
1828 | { | |
1829 | c->doc = "Set verbose printing of informational messages."; | |
1830 | showcmd->doc = "Show verbose printing of informational messages."; | |
1831 | } | |
1832 | else | |
1833 | { | |
1834 | c->doc = "Set verbosity."; | |
1835 | showcmd->doc = "Show verbosity."; | |
1836 | } | |
1837 | } | |
1838 | ||
9e0b60a8 | 1839 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1840 | have been read so that the user can change the history file via his |
1841 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1842 | overrides all of this. */ | |
9e0b60a8 JM |
1843 | |
1844 | void | |
fba45db2 | 1845 | init_history (void) |
9e0b60a8 JM |
1846 | { |
1847 | char *tmpenv; | |
1848 | ||
b58c513b | 1849 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1850 | if (tmpenv) |
840a9a1f | 1851 | { |
bc460514 | 1852 | long var; |
0fc26caf | 1853 | int saved_errno; |
bc460514 PP |
1854 | char *endptr; |
1855 | ||
1856 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1857 | errno = 0; |
bc460514 | 1858 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1859 | saved_errno = errno; |
bc460514 PP |
1860 | endptr = skip_spaces (endptr); |
1861 | ||
1862 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1863 | empty string, a negative number or a huge positive number (larger than | |
1864 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1865 | history size to the number we have read. This behavior is consistent | |
1866 | with how bash handles HISTSIZE. */ | |
1867 | if (*endptr != '\0') | |
1868 | ; | |
1869 | else if (*tmpenv == '\0' | |
1870 | || var < 0 | |
0fc26caf PP |
1871 | || var > INT_MAX |
1872 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1873 | errno after calling strtol to distinguish between a value that | |
1874 | is exactly INT_MAX and an overflowing value that was clamped | |
1875 | to INT_MAX. */ | |
1876 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1877 | history_size_setshow_var = -1; |
1878 | else | |
1879 | history_size_setshow_var = var; | |
840a9a1f | 1880 | } |
bc460514 PP |
1881 | |
1882 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1883 | default. */ | |
1884 | if (history_size_setshow_var == -2) | |
840a9a1f | 1885 | history_size_setshow_var = 256; |
9e0b60a8 | 1886 | |
ebfd00d2 | 1887 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1888 | |
1889 | tmpenv = getenv ("GDBHISTFILE"); | |
1890 | if (tmpenv) | |
1b36a34b | 1891 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1892 | else if (!history_filename) |
1893 | { | |
1894 | /* We include the current directory so that if the user changes | |
1895 | directories the file written will be the same as the one | |
1896 | that was read. */ | |
a0b3c4fd | 1897 | #ifdef __MSDOS__ |
eb2f494a | 1898 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1899 | history_filename = concat (current_directory, "/_gdb_history", |
1900 | (char *)NULL); | |
a0b3c4fd | 1901 | #else |
1754f103 MK |
1902 | history_filename = concat (current_directory, "/.gdb_history", |
1903 | (char *)NULL); | |
a0b3c4fd | 1904 | #endif |
c5aa993b | 1905 | } |
9e0b60a8 JM |
1906 | read_history (history_filename); |
1907 | } | |
1908 | ||
920d2a44 | 1909 | static void |
ab821bc6 PA |
1910 | show_prompt (struct ui_file *file, int from_tty, |
1911 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1912 | { |
1913 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1914 | } | |
1915 | ||
3c216924 PA |
1916 | /* "set editing" command. */ |
1917 | ||
1918 | static void | |
1919 | set_editing (char *args, int from_tty, struct cmd_list_element *c) | |
1920 | { | |
1921 | change_line_handler (set_editing_cmd_var); | |
1922 | /* Update the control variable so that MI's =cmd-param-changed event | |
1923 | shows the correct value. */ | |
1924 | set_editing_cmd_var = current_ui->command_editing; | |
1925 | } | |
1926 | ||
920d2a44 | 1927 | static void |
3c216924 PA |
1928 | show_editing (struct ui_file *file, int from_tty, |
1929 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 1930 | { |
3e43a32a MS |
1931 | fprintf_filtered (file, _("Editing of command lines as " |
1932 | "they are typed is %s.\n"), | |
3c216924 | 1933 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
1934 | } |
1935 | ||
1936 | static void | |
1937 | show_annotation_level (struct ui_file *file, int from_tty, | |
1938 | struct cmd_list_element *c, const char *value) | |
1939 | { | |
1940 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1941 | } | |
1942 | ||
1943 | static void | |
1944 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1945 | struct cmd_list_element *c, const char *value) | |
1946 | { | |
3e43a32a MS |
1947 | fprintf_filtered (file, _("Notification of completion for " |
1948 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1949 | value); |
1950 | } | |
6dea1fbd | 1951 | |
8d551b02 DE |
1952 | /* New values of the "data-directory" parameter are staged here. */ |
1953 | static char *staged_gdb_datadir; | |
1954 | ||
6dea1fbd JK |
1955 | /* "set" command for the gdb_datadir configuration variable. */ |
1956 | ||
1957 | static void | |
1958 | set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c) | |
1959 | { | |
8d551b02 | 1960 | set_gdb_data_directory (staged_gdb_datadir); |
6dea1fbd JK |
1961 | observer_notify_gdb_datadir_changed (); |
1962 | } | |
1963 | ||
8d551b02 DE |
1964 | /* "show" command for the gdb_datadir configuration variable. */ |
1965 | ||
1966 | static void | |
1967 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
1968 | struct cmd_list_element *c, const char *value) | |
1969 | { | |
1970 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
1971 | gdb_datadir); | |
1972 | } | |
1973 | ||
97c85fc6 MB |
1974 | static void |
1975 | set_history_filename (char *args, int from_tty, struct cmd_list_element *c) | |
1976 | { | |
1977 | /* We include the current directory so that if the user changes | |
1978 | directories the file written will be the same as the one | |
1979 | that was read. */ | |
1980 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
1981 | history_filename = reconcat (history_filename, current_directory, "/", | |
1982 | history_filename, (char *) NULL); | |
1983 | } | |
1984 | ||
9e0b60a8 | 1985 | static void |
fba45db2 | 1986 | init_main (void) |
9e0b60a8 | 1987 | { |
60eb5395 PA |
1988 | struct cmd_list_element *c; |
1989 | ||
ab821bc6 PA |
1990 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
1991 | the DEFAULT_PROMPT is. */ | |
1992 | set_prompt (DEFAULT_PROMPT); | |
1993 | ||
9e0b60a8 JM |
1994 | /* Set the important stuff up for command editing. */ |
1995 | command_editing_p = 1; | |
9e0b60a8 | 1996 | history_expansion_p = 0; |
452a569e | 1997 | write_history_p = 0; |
9e0b60a8 JM |
1998 | |
1999 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2000 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
eb3ff9a5 | 2001 | rl_attempted_completion_function = gdb_rl_attempted_completion_function; |
67cb5b2d | 2002 | set_rl_completer_word_break_characters (default_word_break_characters ()); |
d318976c | 2003 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2004 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2005 | rl_readline_name = "gdb"; |
7cb3ec5e | 2006 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2007 | |
467d8519 TT |
2008 | /* The name for this defun comes from Bash, where it originated. |
2009 | 15 is Control-o, the same binding this function has in Bash. */ | |
2010 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2011 | ||
4d28ad1e | 2012 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2013 | &top_prompt, |
3e43a32a MS |
2014 | _("Set gdb's prompt"), |
2015 | _("Show gdb's prompt"), | |
ab821bc6 PA |
2016 | NULL, NULL, |
2017 | show_prompt, | |
4d28ad1e | 2018 | &setlist, &showlist); |
9e0b60a8 | 2019 | |
1bedd215 | 2020 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2021 | Don't repeat this command.\nPrimarily \ |
2022 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2023 | hitting return.")); |
9e0b60a8 | 2024 | |
5bf193a2 | 2025 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2026 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2027 | Set editing of command lines as they are typed."), _("\ |
2028 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2029 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2030 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2031 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2032 | set_editing, |
2033 | show_editing, | |
5bf193a2 AC |
2034 | &setlist, &showlist); |
2035 | ||
2036 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2037 | Set saving of the history record on exit."), _("\ | |
2038 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2039 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2040 | Without an argument, saving is enabled."), |
2041 | NULL, | |
920d2a44 | 2042 | show_write_history_p, |
5bf193a2 | 2043 | &sethistlist, &showhistlist); |
9e0b60a8 | 2044 | |
ebfd00d2 PP |
2045 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2046 | &history_size_setshow_var, _("\ | |
4d28ad1e AC |
2047 | Set the size of the command history,"), _("\ |
2048 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
2049 | ie. the number of previous commands to keep a record of.\n\ |
2050 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
2051 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2052 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2053 | set_history_size_command, |
2054 | show_history_size, | |
2055 | &sethistlist, &showhistlist); | |
4d28ad1e | 2056 | |
fc637f04 PP |
2057 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2058 | &history_remove_duplicates, _("\ | |
2059 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2060 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2061 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2062 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2063 | entry, each time a new history entry is added.\n\ | |
2064 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2065 | Only history entries added during this session are considered for removal.\n\ | |
2066 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2067 | By default this option is set to 0."), | |
2068 | NULL, | |
2069 | show_history_remove_duplicates, | |
2070 | &sethistlist, &showhistlist); | |
2071 | ||
4d28ad1e AC |
2072 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
2073 | Set the filename in which to record the command history"), _("\ | |
2074 | Show the filename in which to record the command history"), _("\ | |
2075 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 2076 | set_history_filename, |
920d2a44 | 2077 | show_history_filename, |
4d28ad1e | 2078 | &sethistlist, &showhistlist); |
9e0b60a8 | 2079 | |
e360902b | 2080 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2081 | Set whether to confirm potentially dangerous operations."), _("\ |
2082 | Show whether to confirm potentially dangerous operations."), NULL, | |
2083 | NULL, | |
e360902b | 2084 | show_confirm, |
5bf193a2 | 2085 | &setlist, &showlist); |
9e0b60a8 | 2086 | |
85c07804 AC |
2087 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2088 | Set annotation_level."), _("\ | |
2089 | Show annotation_level."), _("\ | |
9e0b60a8 | 2090 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2091 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2092 | NULL, |
920d2a44 | 2093 | show_annotation_level, |
85c07804 | 2094 | &setlist, &showlist); |
362646f5 | 2095 | |
5bf193a2 AC |
2096 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2097 | &exec_done_display_p, _("\ | |
2098 | Set notification of completion for asynchronous execution commands."), _("\ | |
2099 | Show notification of completion for asynchronous execution commands."), _("\ | |
2100 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2101 | NULL, | |
920d2a44 | 2102 | show_exec_done_display_p, |
5bf193a2 | 2103 | &setlist, &showlist); |
b14b1491 TT |
2104 | |
2105 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2106 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2107 | _("Show GDB's data directory."), |
2108 | _("\ | |
2109 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2110 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2111 | &setlist, |
2112 | &showlist); | |
268a799a PA |
2113 | |
2114 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2115 | &interactive_mode, _("\ | |
2116 | Set whether GDB's standard input is a terminal."), _("\ | |
2117 | Show whether GDB's standard input is a terminal."), _("\ | |
2118 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2119 | means that GDB should wait for the user to answer queries associated to\n\ | |
2120 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2121 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2122 | If auto (the default), determine which mode to use based on the standard\n\ | |
2123 | input settings."), | |
2124 | NULL, | |
2125 | show_interactive_mode, | |
2126 | &setlist, &showlist); | |
60eb5395 PA |
2127 | |
2128 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
2129 | Create a new UI. It takes two arguments:\n\ | |
2130 | The first argument is the name of the interpreter to run.\n\ | |
2131 | The second argument is the terminal the UI runs on.\n"), &cmdlist); | |
2132 | set_cmd_completer (c, interpreter_completer); | |
9e0b60a8 | 2133 | } |
64cdedad EZ |
2134 | |
2135 | void | |
2136 | gdb_init (char *argv0) | |
2137 | { | |
2138 | if (pre_init_ui_hook) | |
2139 | pre_init_ui_hook (); | |
2140 | ||
371d5dec | 2141 | /* Run the init function of each source file. */ |
64cdedad | 2142 | |
64cdedad EZ |
2143 | #ifdef __MSDOS__ |
2144 | /* Make sure we return to the original directory upon exit, come | |
2145 | what may, since the OS doesn't do that for us. */ | |
2146 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2147 | #endif | |
2148 | ||
371d5dec MS |
2149 | init_cmd_lists (); /* This needs to be done first. */ |
2150 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
2151 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 | 2152 | |
24b73f8e PP |
2153 | init_page_info (); |
2154 | ||
9dea9163 | 2155 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2156 | initialize_all_files (); |
9dea9163 | 2157 | |
6c95b8df PA |
2158 | /* This creates the current_program_space. Do this after all the |
2159 | _initialize_foo routines have had a chance to install their | |
2160 | per-sspace data keys. Also do this before | |
2161 | initialize_current_architecture is called, because it accesses | |
2162 | exec_bfd of the current program space. */ | |
2163 | initialize_progspace (); | |
2164 | initialize_inferiors (); | |
64cdedad EZ |
2165 | initialize_current_architecture (); |
2166 | init_cli_cmds(); | |
371d5dec | 2167 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2168 | |
0ea3f30e DJ |
2169 | initialize_stdin_serial (); |
2170 | ||
6a06d660 PP |
2171 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2172 | to alter it. */ | |
2173 | set_initial_gdb_ttystate (); | |
2174 | ||
362646f5 | 2175 | async_init_signals (); |
64cdedad | 2176 | |
371d5dec MS |
2177 | /* We need a default language for parsing expressions, so simple |
2178 | things like "set width 0" won't fail if no language is explicitly | |
2179 | set in a config file or implicitly set by reading an executable | |
2180 | during startup. */ | |
64cdedad | 2181 | set_language (language_c); |
371d5dec | 2182 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2183 | |
6dddc817 | 2184 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2185 | installed. For example "info pretty-printer" needs the "info" |
2186 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2187 | script initialization here. */ |
2188 | finish_ext_lang_initialization (); | |
64cdedad | 2189 | } |