Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
a752853e | 2 | |
618f726f | 3 | Copyright (C) 1986-2016 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. */ |
c906108c | 38 | #include "annotate.h" |
c5f0f3d0 | 39 | #include "completer.h" |
c906108c | 40 | #include "top.h" |
d4f3574e | 41 | #include "version.h" |
210661e7 | 42 | #include "serial.h" |
d16aafd8 | 43 | #include "doublest.h" |
f17517ea | 44 | #include "main.h" |
2e03ee74 | 45 | #include "event-loop.h" |
8ea051c5 | 46 | #include "gdbthread.h" |
6dddc817 | 47 | #include "extension.h" |
b4a14fd0 | 48 | #include "interps.h" |
6dea1fbd | 49 | #include "observer.h" |
bd712aed | 50 | #include "maint.h" |
97c85fc6 | 51 | #include "filenames.h" |
06096720 | 52 | #include "frame.h" |
7a3bde34 | 53 | #include "buffer.h" |
3212b858 | 54 | #include "gdb_select.h" |
c906108c | 55 | |
371d5dec | 56 | /* readline include files. */ |
dbda9972 AC |
57 | #include "readline/readline.h" |
58 | #include "readline/history.h" | |
c906108c SS |
59 | |
60 | /* readline defines this. */ | |
61 | #undef savestring | |
62 | ||
63 | #include <sys/types.h> | |
c906108c | 64 | |
c2c6d25f | 65 | #include "event-top.h" |
53ce3c39 | 66 | #include <sys/stat.h> |
c906108c | 67 | #include <ctype.h> |
8b93c638 JM |
68 | #include "ui-out.h" |
69 | #include "cli-out.h" | |
2f9d54cf | 70 | #include "tracepoint.h" |
93d6eb10 | 71 | #include "inf-loop.h" |
c906108c | 72 | |
18206ca3 PP |
73 | #if defined(TUI) |
74 | # include "tui/tui.h" | |
75 | #endif | |
76 | ||
60eb5395 PA |
77 | #ifndef O_NOCTTY |
78 | # define O_NOCTTY 0 | |
79 | #endif | |
80 | ||
ca7b0bbc TT |
81 | extern void initialize_all_files (void); |
82 | ||
95298e72 PM |
83 | #define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt |
84 | #define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix | |
85 | #define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix | |
86 | ||
371d5dec | 87 | /* Default command line prompt. This is overriden in some configs. */ |
104c1213 JM |
88 | |
89 | #ifndef DEFAULT_PROMPT | |
90 | #define DEFAULT_PROMPT "(gdb) " | |
c906108c SS |
91 | #endif |
92 | ||
79aa2fe8 PA |
93 | /* Generate a function that exports a pointer to a field of the |
94 | current UI. */ | |
95 | ||
96 | #define gen_ret_current_ui_field_ptr(type, name) \ | |
97 | type * \ | |
98 | current_ui_## name ## _ptr (void) \ | |
99 | { \ | |
100 | return ¤t_ui->m_ ## name; \ | |
101 | } | |
102 | ||
103 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdout) | |
104 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdin) | |
105 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stderr) | |
106 | gen_ret_current_ui_field_ptr (struct ui_file *, gdb_stdlog) | |
b6dcde57 | 107 | gen_ret_current_ui_field_ptr (struct ui_out *, current_uiout) |
79aa2fe8 | 108 | |
e655c1a2 | 109 | /* Initialization file name for gdb. This is host-dependent. */ |
eaae3919 | 110 | |
e655c1a2 | 111 | const char gdbinit[] = GDBINIT; |
c906108c SS |
112 | |
113 | int inhibit_gdbinit = 0; | |
114 | ||
c906108c SS |
115 | extern char lang_frame_mismatch_warn[]; /* language.c */ |
116 | ||
050a2e1d PA |
117 | /* Flag for whether we want to confirm potentially dangerous |
118 | operations. Default is yes. */ | |
119 | ||
e360902b | 120 | int confirm = 1; |
c906108c | 121 | |
920d2a44 | 122 | static void |
e360902b | 123 | show_confirm (struct ui_file *file, int from_tty, |
920d2a44 AC |
124 | struct cmd_list_element *c, const char *value) |
125 | { | |
3e43a32a MS |
126 | fprintf_filtered (file, _("Whether to confirm potentially " |
127 | "dangerous operations is %s.\n"), | |
920d2a44 AC |
128 | value); |
129 | } | |
c906108c | 130 | |
698ba934 DJ |
131 | /* Flag to indicate whether a user defined command is currently running. */ |
132 | ||
133 | int in_user_command; | |
134 | ||
c906108c SS |
135 | /* Current working directory. */ |
136 | ||
137 | char *current_directory; | |
138 | ||
139 | /* The directory name is actually stored here (usually). */ | |
140 | char gdb_dirbuf[1024]; | |
141 | ||
2669cade PA |
142 | /* The last command line executed on the console. Used for command |
143 | repetitions. */ | |
dc7eb48e | 144 | char *saved_command_line; |
c906108c SS |
145 | |
146 | /* Nonzero if the current command is modified by "server ". This | |
c2d11a7d | 147 | affects things like recording into the command history, commands |
c906108c SS |
148 | repeating on RETURN, etc. This is so a user interface (emacs, GUI, |
149 | whatever) can issue its own commands and also send along commands | |
150 | from the user, and have the user not notice that the user interface | |
151 | is issuing commands too. */ | |
152 | int server_command; | |
153 | ||
371d5dec | 154 | /* Timeout limit for response from target. */ |
c906108c | 155 | |
ce808e91 AC |
156 | /* The default value has been changed many times over the years. It |
157 | was originally 5 seconds. But that was thought to be a long time | |
158 | to sit and wait, so it was changed to 2 seconds. That was thought | |
159 | to be plenty unless the connection was going through some terminal | |
160 | server or multiplexer or other form of hairy serial connection. | |
161 | ||
162 | In mid-1996, remote_timeout was moved from remote.c to top.c and | |
163 | it began being used in other remote-* targets. It appears that the | |
164 | default was changed to 20 seconds at that time, perhaps because the | |
85a453d5 | 165 | Renesas E7000 ICE didn't always respond in a timely manner. |
ce808e91 AC |
166 | |
167 | But if 5 seconds is a long time to sit and wait for retransmissions, | |
168 | 20 seconds is far worse. This demonstrates the difficulty of using | |
169 | a single variable for all protocol timeouts. | |
170 | ||
171 | As remote.c is used much more than remote-e7000.c, it was changed | |
371d5dec | 172 | back to 2 seconds in 1999. */ |
ce808e91 AC |
173 | |
174 | int remote_timeout = 2; | |
c906108c SS |
175 | |
176 | /* Non-zero tells remote* modules to output debugging info. */ | |
177 | ||
178 | int remote_debug = 0; | |
179 | ||
6dd77b81 RH |
180 | /* Sbrk location on entry to main. Used for statistics only. */ |
181 | #ifdef HAVE_SBRK | |
182 | char *lim_at_start; | |
183 | #endif | |
184 | ||
c906108c SS |
185 | /* Hooks for alternate command interfaces. */ |
186 | ||
371d5dec MS |
187 | /* This hook is called from within gdb's many mini-event loops which |
188 | could steal control from a real user interface's event loop. It | |
189 | returns non-zero if the user is requesting a detach, zero | |
190 | otherwise. */ | |
7a292a7a | 191 | |
98bbd631 | 192 | int (*deprecated_ui_loop_hook) (int); |
c906108c | 193 | |
c906108c | 194 | |
c906108c SS |
195 | /* Called from print_frame_info to list the line we stopped in. */ |
196 | ||
371d5dec MS |
197 | void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, |
198 | int line, | |
199 | int stopline, | |
200 | int noerror); | |
c906108c SS |
201 | /* Replaces most of query. */ |
202 | ||
9a4105ab | 203 | int (*deprecated_query_hook) (const char *, va_list); |
c906108c SS |
204 | |
205 | /* Replaces most of warning. */ | |
206 | ||
9a4105ab | 207 | void (*deprecated_warning_hook) (const char *, va_list); |
c906108c | 208 | |
9a4105ab AC |
209 | /* These three functions support getting lines of text from the user. |
210 | They are used in sequence. First deprecated_readline_begin_hook is | |
211 | called with a text string that might be (for example) a message for | |
212 | the user to type in a sequence of commands to be executed at a | |
213 | breakpoint. If this function calls back to a GUI, it might take | |
214 | this opportunity to pop up a text interaction window with this | |
215 | message. Next, deprecated_readline_hook is called with a prompt | |
216 | that is emitted prior to collecting the user input. It can be | |
217 | called multiple times. Finally, deprecated_readline_end_hook is | |
218 | called to notify the GUI that we are done with the interaction | |
219 | window and it can close it. */ | |
c906108c | 220 | |
9a4105ab | 221 | void (*deprecated_readline_begin_hook) (char *, ...); |
38bcc89d | 222 | char *(*deprecated_readline_hook) (const char *); |
9a4105ab | 223 | void (*deprecated_readline_end_hook) (void); |
c906108c | 224 | |
6426a772 | 225 | /* Called as appropriate to notify the interface that we have attached |
371d5dec | 226 | to or detached from an already running process. */ |
6426a772 | 227 | |
9a4105ab AC |
228 | void (*deprecated_attach_hook) (void); |
229 | void (*deprecated_detach_hook) (void); | |
6426a772 | 230 | |
371d5dec MS |
231 | /* Called during long calculations to allow GUI to repair window |
232 | damage, and to check for stop buttons, etc... */ | |
c906108c | 233 | |
9a4105ab | 234 | void (*deprecated_interactive_hook) (void); |
c906108c | 235 | |
371d5dec MS |
236 | /* Called when going to wait for the target. Usually allows the GUI |
237 | to run while waiting for target events. */ | |
c906108c | 238 | |
9a4105ab | 239 | ptid_t (*deprecated_target_wait_hook) (ptid_t ptid, |
47608cb1 PA |
240 | struct target_waitstatus *status, |
241 | int options); | |
c906108c | 242 | |
371d5dec MS |
243 | /* Used by UI as a wrapper around command execution. May do various |
244 | things like enabling/disabling buttons, etc... */ | |
c906108c | 245 | |
371d5dec MS |
246 | void (*deprecated_call_command_hook) (struct cmd_list_element * c, |
247 | char *cmd, int from_tty); | |
c906108c SS |
248 | |
249 | /* Called when the current thread changes. Argument is thread id. */ | |
250 | ||
9a4105ab | 251 | void (*deprecated_context_hook) (int id); |
c906108c | 252 | |
98d9f24e PA |
253 | /* The highest UI number ever assigned. */ |
254 | static int highest_ui_num; | |
255 | ||
256 | /* See top.h. */ | |
257 | ||
258 | struct ui * | |
259 | new_ui (FILE *instream, FILE *outstream, FILE *errstream) | |
260 | { | |
261 | struct ui *ui; | |
262 | ||
263 | ui = XCNEW (struct ui); | |
264 | ||
265 | ui->num = ++highest_ui_num; | |
268a799a | 266 | ui->stdin_stream = instream; |
98d9f24e PA |
267 | ui->instream = instream; |
268 | ui->outstream = outstream; | |
269 | ui->errstream = errstream; | |
270 | ||
271 | ui->input_fd = fileno (ui->instream); | |
272 | ||
268a799a PA |
273 | ui->input_interactive_p = ISATTY (ui->instream); |
274 | ||
98d9f24e PA |
275 | ui->m_gdb_stdin = stdio_fileopen (ui->instream); |
276 | ui->m_gdb_stdout = stdio_fileopen (ui->outstream); | |
277 | ui->m_gdb_stderr = stderr_fileopen (ui->errstream); | |
278 | ui->m_gdb_stdlog = ui->m_gdb_stderr; | |
279 | ||
280 | ui->prompt_state = PROMPT_NEEDED; | |
281 | ||
282 | if (ui_list == NULL) | |
283 | ui_list = ui; | |
284 | else | |
285 | { | |
286 | struct ui *last; | |
287 | ||
288 | for (last = ui_list; last->next != NULL; last = last->next) | |
289 | ; | |
290 | last->next = ui; | |
291 | } | |
292 | ||
293 | return ui; | |
294 | } | |
295 | ||
07169ff7 PA |
296 | static void |
297 | free_ui (struct ui *ui) | |
298 | { | |
299 | ui_file_delete (ui->m_gdb_stdin); | |
300 | ui_file_delete (ui->m_gdb_stdout); | |
301 | ui_file_delete (ui->m_gdb_stderr); | |
302 | ||
303 | xfree (ui); | |
304 | } | |
305 | ||
306 | void | |
307 | delete_ui (struct ui *todel) | |
308 | { | |
309 | struct ui *ui, *uiprev; | |
310 | ||
311 | uiprev = NULL; | |
312 | ||
313 | for (ui = ui_list; ui != NULL; uiprev = ui, ui = ui->next) | |
314 | if (ui == todel) | |
315 | break; | |
316 | ||
317 | gdb_assert (ui != NULL); | |
318 | ||
319 | if (uiprev != NULL) | |
320 | uiprev->next = ui->next; | |
321 | else | |
322 | ui_list = ui->next; | |
323 | ||
324 | free_ui (ui); | |
325 | } | |
326 | ||
8194e927 SM |
327 | /* Cleanup that deletes a UI. */ |
328 | ||
329 | static void | |
330 | delete_ui_cleanup (void *void_ui) | |
331 | { | |
332 | struct ui *ui = (struct ui *) void_ui; | |
333 | ||
334 | delete_ui (ui); | |
335 | } | |
336 | ||
337 | /* See top.h. */ | |
338 | ||
339 | struct cleanup * | |
340 | make_delete_ui_cleanup (struct ui *ui) | |
341 | { | |
342 | return make_cleanup (delete_ui_cleanup, ui); | |
343 | } | |
344 | ||
60eb5395 PA |
345 | /* Open file named NAME for read/write, making sure not to make it the |
346 | controlling terminal. */ | |
347 | ||
348 | static FILE * | |
349 | open_terminal_stream (const char *name) | |
350 | { | |
351 | int fd; | |
352 | ||
353 | fd = open (name, O_RDWR | O_NOCTTY); | |
354 | if (fd < 0) | |
355 | perror_with_name (_("opening terminal failed")); | |
356 | ||
357 | return fdopen (fd, "w+"); | |
358 | } | |
359 | ||
360 | /* Implementation of the "new-ui" command. */ | |
361 | ||
362 | static void | |
363 | new_ui_command (char *args, int from_tty) | |
364 | { | |
365 | struct ui *ui; | |
366 | struct interp *interp; | |
367 | FILE *stream[3] = { NULL, NULL, NULL }; | |
368 | int i; | |
369 | int res; | |
370 | int argc; | |
371 | char **argv; | |
372 | const char *interpreter_name; | |
373 | const char *tty_name; | |
8194e927 SM |
374 | struct cleanup *success_chain; |
375 | struct cleanup *failure_chain; | |
60eb5395 PA |
376 | |
377 | dont_repeat (); | |
378 | ||
379 | argv = gdb_buildargv (args); | |
8194e927 | 380 | success_chain = make_cleanup_freeargv (argv); |
60eb5395 PA |
381 | argc = countargv (argv); |
382 | ||
383 | if (argc < 2) | |
384 | error (_("usage: new-ui <interpreter> <tty>")); | |
385 | ||
386 | interpreter_name = argv[0]; | |
387 | tty_name = argv[1]; | |
388 | ||
8194e927 SM |
389 | make_cleanup (restore_ui_cleanup, current_ui); |
390 | ||
391 | failure_chain = make_cleanup (null_cleanup, NULL); | |
60eb5395 PA |
392 | |
393 | /* Open specified terminal, once for each of | |
394 | stdin/stdout/stderr. */ | |
395 | for (i = 0; i < 3; i++) | |
396 | { | |
397 | stream[i] = open_terminal_stream (tty_name); | |
398 | make_cleanup_fclose (stream[i]); | |
399 | } | |
400 | ||
401 | ui = new_ui (stream[0], stream[1], stream[2]); | |
8194e927 | 402 | make_cleanup (delete_ui_cleanup, ui); |
60eb5395 PA |
403 | |
404 | ui->async = 1; | |
405 | ||
60eb5395 PA |
406 | current_ui = ui; |
407 | ||
408 | set_top_level_interpreter (interpreter_name); | |
409 | ||
410 | interp_pre_command_loop (top_level_interpreter ()); | |
411 | ||
8194e927 SM |
412 | discard_cleanups (failure_chain); |
413 | ||
414 | /* This restores the previous UI and frees argv. */ | |
415 | do_cleanups (success_chain); | |
60eb5395 PA |
416 | |
417 | printf_unfiltered ("New UI allocated\n"); | |
418 | } | |
419 | ||
c906108c SS |
420 | /* Handler for SIGHUP. */ |
421 | ||
422 | #ifdef SIGHUP | |
392a587b | 423 | /* NOTE 1999-04-29: This function will be static again, once we modify |
cd0fc7c3 | 424 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 425 | event-top.c into this file, top.c. */ |
b2cd6b29 JM |
426 | /* static */ void |
427 | quit_cover (void) | |
c906108c | 428 | { |
e360902b PA |
429 | /* Stop asking user for confirmation --- we're exiting. This |
430 | prevents asking the user dumb questions. */ | |
431 | confirm = 0; | |
c5aa993b | 432 | quit_command ((char *) 0, 0); |
c906108c SS |
433 | } |
434 | #endif /* defined SIGHUP */ | |
435 | \f | |
7a9dd1b2 | 436 | /* Line number we are currently in, in a file which is being sourced. */ |
392a587b | 437 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 438 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 439 | event-top.c into this file, top.c. */ |
cd0fc7c3 | 440 | /* static */ int source_line_number; |
c906108c SS |
441 | |
442 | /* Name of the file we are sourcing. */ | |
392a587b | 443 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
cd0fc7c3 | 444 | gdb to use the event loop as the default command loop and we merge |
c378eb4e | 445 | event-top.c into this file, top.c. */ |
05159abe | 446 | /* static */ const char *source_file_name; |
c906108c | 447 | |
c906108c SS |
448 | /* Clean up on error during a "source" command (or execution of a |
449 | user-defined command). */ | |
450 | ||
d318976c | 451 | void |
e41a3b1a | 452 | do_restore_instream_cleanup (void *stream) |
c906108c | 453 | { |
f38d3ad1 PA |
454 | struct ui *ui = current_ui; |
455 | ||
c906108c | 456 | /* Restore the previous input stream. */ |
f38d3ad1 | 457 | ui->instream = (FILE *) stream; |
c906108c SS |
458 | } |
459 | ||
460 | /* Read commands from STREAM. */ | |
461 | void | |
fba45db2 | 462 | read_command_file (FILE *stream) |
c906108c | 463 | { |
f38d3ad1 | 464 | struct ui *ui = current_ui; |
c906108c SS |
465 | struct cleanup *cleanups; |
466 | ||
f38d3ad1 PA |
467 | cleanups = make_cleanup (do_restore_instream_cleanup, ui->instream); |
468 | ui->instream = stream; | |
faa4ebe1 PA |
469 | |
470 | /* Read commands from `instream' and execute them until end of file | |
471 | or error reading instream. */ | |
472 | ||
f38d3ad1 | 473 | while (ui->instream != NULL && !feof (ui->instream)) |
faa4ebe1 PA |
474 | { |
475 | char *command; | |
476 | ||
477 | /* Get a command-line. This calls the readline package. */ | |
478 | command = command_line_input (NULL, 0, NULL); | |
479 | if (command == NULL) | |
480 | break; | |
481 | command_handler (command); | |
482 | } | |
483 | ||
c906108c SS |
484 | do_cleanups (cleanups); |
485 | } | |
486 | \f | |
507f3c78 | 487 | void (*pre_init_ui_hook) (void); |
c906108c | 488 | |
e41a3b1a | 489 | #ifdef __MSDOS__ |
70976b65 | 490 | static void |
e41a3b1a AC |
491 | do_chdir_cleanup (void *old_dir) |
492 | { | |
f515a1d6 | 493 | chdir ((const char *) old_dir); |
b8c9b27d | 494 | xfree (old_dir); |
e41a3b1a AC |
495 | } |
496 | #endif | |
497 | ||
028d0ed5 | 498 | struct cleanup * |
4e5d721f DE |
499 | prepare_execute_command (void) |
500 | { | |
028d0ed5 TJB |
501 | struct value *mark; |
502 | struct cleanup *cleanup; | |
503 | ||
504 | mark = value_mark (); | |
505 | cleanup = make_cleanup_value_free_to_mark (mark); | |
4e5d721f | 506 | |
371d5dec MS |
507 | /* With multiple threads running while the one we're examining is |
508 | stopped, the dcache can get stale without us being able to detect | |
509 | it. For the duration of the command, though, use the dcache to | |
510 | help things like backtrace. */ | |
4e5d721f DE |
511 | if (non_stop) |
512 | target_dcache_invalidate (); | |
028d0ed5 TJB |
513 | |
514 | return cleanup; | |
4e5d721f DE |
515 | } |
516 | ||
77cce10f PA |
517 | /* Tell the user if the language has changed (except first time) after |
518 | executing a command. */ | |
519 | ||
520 | void | |
521 | check_frame_language_change (void) | |
522 | { | |
523 | static int warned = 0; | |
7ff38b1c | 524 | struct frame_info *frame; |
77cce10f PA |
525 | |
526 | /* First make sure that a new frame has been selected, in case the | |
527 | command or the hooks changed the program state. */ | |
7ff38b1c | 528 | frame = deprecated_safe_get_selected_frame (); |
77cce10f PA |
529 | if (current_language != expected_language) |
530 | { | |
531 | if (language_mode == language_mode_auto && info_verbose) | |
532 | { | |
533 | language_info (1); /* Print what changed. */ | |
534 | } | |
535 | warned = 0; | |
536 | } | |
537 | ||
538 | /* Warn the user if the working language does not match the language | |
539 | of the current frame. Only warn the user if we are actually | |
540 | running the program, i.e. there is a stack. */ | |
541 | /* FIXME: This should be cacheing the frame and only running when | |
542 | the frame changes. */ | |
543 | ||
544 | if (has_stack_frames ()) | |
545 | { | |
546 | enum language flang; | |
547 | ||
7ff38b1c | 548 | flang = get_frame_language (frame); |
77cce10f PA |
549 | if (!warned |
550 | && flang != language_unknown | |
551 | && flang != current_language->la_language) | |
552 | { | |
553 | printf_filtered ("%s\n", lang_frame_mismatch_warn); | |
554 | warned = 1; | |
555 | } | |
556 | } | |
557 | } | |
558 | ||
98880d46 PA |
559 | /* See top.h. */ |
560 | ||
0b333c5e PA |
561 | void |
562 | wait_sync_command_done (void) | |
563 | { | |
564 | while (gdb_do_one_event () >= 0) | |
3b12939d | 565 | if (current_ui->prompt_state != PROMPT_BLOCKED) |
0b333c5e PA |
566 | break; |
567 | } | |
568 | ||
569 | /* See top.h. */ | |
570 | ||
98880d46 PA |
571 | void |
572 | maybe_wait_sync_command_done (int was_sync) | |
573 | { | |
574 | /* If the interpreter is in sync mode (we're running a user | |
575 | command's list, running command hooks or similars), and we | |
576 | just ran a synchronous command that started the target, wait | |
577 | for that command to end. */ | |
3b12939d PA |
578 | if (!current_ui->async |
579 | && !was_sync | |
580 | && current_ui->prompt_state == PROMPT_BLOCKED) | |
0b333c5e | 581 | wait_sync_command_done (); |
98880d46 PA |
582 | } |
583 | ||
648bf667 | 584 | /* Execute the line P as a command, in the current user context. |
d318976c | 585 | Pass FROM_TTY as second argument to the defining function. */ |
c906108c | 586 | |
d318976c FN |
587 | void |
588 | execute_command (char *p, int from_tty) | |
c906108c | 589 | { |
353d1d73 | 590 | struct cleanup *cleanup_if_error, *cleanup; |
52f0bd74 | 591 | struct cmd_list_element *c; |
d318976c | 592 | char *line; |
4e5d721f | 593 | |
353d1d73 | 594 | cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
028d0ed5 | 595 | cleanup = prepare_execute_command (); |
c906108c | 596 | |
d318976c FN |
597 | /* Force cleanup of any alloca areas if using C alloca instead of |
598 | a builtin alloca. */ | |
599 | alloca (0); | |
c906108c | 600 | |
d318976c FN |
601 | /* This can happen when command_line_input hits end of file. */ |
602 | if (p == NULL) | |
5fe41fbf TT |
603 | { |
604 | do_cleanups (cleanup); | |
5ae85e44 | 605 | discard_cleanups (cleanup_if_error); |
5fe41fbf TT |
606 | return; |
607 | } | |
c906108c | 608 | |
49d03eab | 609 | target_log_command (p); |
8b93c638 | 610 | |
d318976c FN |
611 | while (*p == ' ' || *p == '\t') |
612 | p++; | |
613 | if (*p) | |
8b93c638 | 614 | { |
6f937416 | 615 | const char *cmd = p; |
d318976c | 616 | char *arg; |
3b12939d | 617 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
90e28950 | 618 | |
d318976c | 619 | line = p; |
8b93c638 | 620 | |
16026cd7 AS |
621 | /* If trace-commands is set then this will print this command. */ |
622 | print_command_trace (p); | |
623 | ||
6f937416 PA |
624 | c = lookup_cmd (&cmd, cmdlist, "", 0, 1); |
625 | p = (char *) cmd; | |
8b93c638 | 626 | |
d318976c FN |
627 | /* Pass null arg rather than an empty one. */ |
628 | arg = *p ? p : 0; | |
8b93c638 | 629 | |
9f60d481 AC |
630 | /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy |
631 | while the is_complete_command(cfunc) test is just plain | |
632 | bogus. They should both be replaced by a test of the form | |
633 | c->strip_trailing_white_space_p. */ | |
634 | /* NOTE: cagney/2002-02-02: The function.cfunc in the below | |
635 | can't be replaced with func. This is because it is the | |
636 | cfunc, and not the func, that has the value that the | |
637 | is_complete_command hack is testing for. */ | |
638 | /* Clear off trailing whitespace, except for set and complete | |
639 | command. */ | |
d318976c FN |
640 | if (arg |
641 | && c->type != set_cmd | |
bbaca940 | 642 | && !is_complete_command (c)) |
8b93c638 | 643 | { |
d318976c FN |
644 | p = arg + strlen (arg) - 1; |
645 | while (p >= arg && (*p == ' ' || *p == '\t')) | |
646 | p--; | |
647 | *(p + 1) = '\0'; | |
8b93c638 JM |
648 | } |
649 | ||
371d5dec | 650 | /* If this command has been pre-hooked, run the hook first. */ |
5913bcb0 | 651 | execute_cmd_pre_hook (c); |
c906108c | 652 | |
1f2bdf09 | 653 | if (c->deprecated_warn_user) |
6f937416 | 654 | deprecated_cmd_warning (line); |
c906108c | 655 | |
7d74f244 | 656 | /* c->user_commands would be NULL in the case of a python command. */ |
fe978cb0 | 657 | if (c->theclass == class_user && c->user_commands) |
d318976c | 658 | execute_user_command (c, arg); |
5b9afe8a YQ |
659 | else if (c->type == set_cmd) |
660 | do_set_command (arg, from_tty, c); | |
661 | else if (c->type == show_cmd) | |
662 | do_show_command (arg, from_tty, c); | |
f436dd25 | 663 | else if (!cmd_func_p (c)) |
8a3fe4f8 | 664 | error (_("That is not a command, just a help topic.")); |
9a4105ab | 665 | else if (deprecated_call_command_hook) |
050a2e1d | 666 | deprecated_call_command_hook (c, arg, from_tty); |
d318976c | 667 | else |
050a2e1d | 668 | cmd_func (c, arg, from_tty); |
b4a14fd0 | 669 | |
98880d46 | 670 | maybe_wait_sync_command_done (was_sync); |
b4a14fd0 | 671 | |
371d5dec | 672 | /* If this command has been post-hooked, run the hook last. */ |
5913bcb0 | 673 | execute_cmd_post_hook (c); |
c906108c | 674 | |
c906108c SS |
675 | } |
676 | ||
77cce10f | 677 | check_frame_language_change (); |
028d0ed5 | 678 | |
353d1d73 JK |
679 | do_cleanups (cleanup); |
680 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
681 | } |
682 | ||
5da1313b JK |
683 | /* Run execute_command for P and FROM_TTY. Capture its output into the |
684 | returned string, do not display it to the screen. BATCH_FLAG will be | |
685 | temporarily set to true. */ | |
686 | ||
687 | char * | |
688 | execute_command_to_string (char *p, int from_tty) | |
689 | { | |
690 | struct ui_file *str_file; | |
691 | struct cleanup *cleanup; | |
692 | char *retval; | |
693 | ||
694 | /* GDB_STDOUT should be better already restored during these | |
695 | restoration callbacks. */ | |
696 | cleanup = set_batch_flag_and_make_cleanup_restore_page_info (); | |
697 | ||
cb814510 PA |
698 | make_cleanup_restore_integer (¤t_ui->async); |
699 | current_ui->async = 0; | |
b4a14fd0 | 700 | |
5da1313b JK |
701 | str_file = mem_fileopen (); |
702 | ||
8d4d924b | 703 | make_cleanup_ui_file_delete (str_file); |
5da1313b JK |
704 | make_cleanup_restore_ui_file (&gdb_stdout); |
705 | make_cleanup_restore_ui_file (&gdb_stderr); | |
8d4d924b JK |
706 | make_cleanup_restore_ui_file (&gdb_stdlog); |
707 | make_cleanup_restore_ui_file (&gdb_stdtarg); | |
708 | make_cleanup_restore_ui_file (&gdb_stdtargerr); | |
709 | ||
79a45e25 | 710 | if (ui_out_redirect (current_uiout, str_file) < 0) |
8d4d924b JK |
711 | warning (_("Current output protocol does not support redirection")); |
712 | else | |
79a45e25 | 713 | make_cleanup_ui_out_redirect_pop (current_uiout); |
5da1313b JK |
714 | |
715 | gdb_stdout = str_file; | |
716 | gdb_stderr = str_file; | |
8d4d924b JK |
717 | gdb_stdlog = str_file; |
718 | gdb_stdtarg = str_file; | |
719 | gdb_stdtargerr = str_file; | |
5da1313b JK |
720 | |
721 | execute_command (p, from_tty); | |
722 | ||
723 | retval = ui_file_xstrdup (str_file, NULL); | |
724 | ||
725 | do_cleanups (cleanup); | |
726 | ||
727 | return retval; | |
728 | } | |
729 | ||
d318976c | 730 | \f |
47a80e90 TT |
731 | /* When nonzero, cause dont_repeat to do nothing. This should only be |
732 | set via prevent_dont_repeat. */ | |
733 | ||
734 | static int suppress_dont_repeat = 0; | |
735 | ||
d318976c | 736 | /* Commands call this if they do not want to be repeated by null lines. */ |
9e0b60a8 | 737 | |
d318976c FN |
738 | void |
739 | dont_repeat (void) | |
9e0b60a8 | 740 | { |
f38d3ad1 PA |
741 | struct ui *ui = current_ui; |
742 | ||
47a80e90 | 743 | if (suppress_dont_repeat || server_command) |
d318976c | 744 | return; |
9e0b60a8 | 745 | |
d318976c | 746 | /* If we aren't reading from standard input, we are saving the last |
371d5dec MS |
747 | thing read from stdin in line and don't want to delete it. Null |
748 | lines won't repeat here in any case. */ | |
268a799a | 749 | if (ui->instream == ui->stdin_stream) |
dc7eb48e | 750 | *saved_command_line = 0; |
9e0b60a8 | 751 | } |
47a80e90 TT |
752 | |
753 | /* Prevent dont_repeat from working, and return a cleanup that | |
754 | restores the previous state. */ | |
755 | ||
756 | struct cleanup * | |
757 | prevent_dont_repeat (void) | |
758 | { | |
759 | struct cleanup *result = make_cleanup_restore_integer (&suppress_dont_repeat); | |
760 | ||
761 | suppress_dont_repeat = 1; | |
762 | return result; | |
763 | } | |
764 | ||
d318976c FN |
765 | \f |
766 | /* Read a line from the stream "instream" without command line editing. | |
9e0b60a8 | 767 | |
7a3bde34 | 768 | It prints PROMPT once at the start. |
d318976c FN |
769 | Action is compatible with "readline", e.g. space for the result is |
770 | malloc'd and should be freed by the caller. | |
9e0b60a8 | 771 | |
d318976c | 772 | A NULL return means end of file. */ |
c5c136ea PA |
773 | |
774 | static char * | |
7a3bde34 | 775 | gdb_readline_no_editing (const char *prompt) |
9e0b60a8 | 776 | { |
7a3bde34 | 777 | struct buffer line_buffer; |
f38d3ad1 | 778 | struct ui *ui = current_ui; |
3212b858 PA |
779 | /* Read from stdin if we are executing a user defined command. This |
780 | is the right thing for prompt_for_continue, at least. */ | |
f38d3ad1 | 781 | FILE *stream = ui->instream != NULL ? ui->instream : stdin; |
3212b858 | 782 | int fd = fileno (stream); |
9e0b60a8 | 783 | |
7a3bde34 PA |
784 | buffer_init (&line_buffer); |
785 | ||
786 | if (prompt != NULL) | |
9e0b60a8 | 787 | { |
d318976c FN |
788 | /* Don't use a _filtered function here. It causes the assumed |
789 | character position to be off, since the newline we read from | |
790 | the user is not accounted for. */ | |
7a3bde34 | 791 | fputs_unfiltered (prompt, gdb_stdout); |
9e0b60a8 JM |
792 | gdb_flush (gdb_stdout); |
793 | } | |
794 | ||
9e0b60a8 JM |
795 | while (1) |
796 | { | |
7a3bde34 | 797 | int c; |
3212b858 PA |
798 | int numfds; |
799 | fd_set readfds; | |
7a3bde34 | 800 | |
3212b858 PA |
801 | QUIT; |
802 | ||
803 | /* Wait until at least one byte of data is available. Control-C | |
f0881b37 | 804 | can interrupt interruptible_select, but not fgetc. */ |
3212b858 PA |
805 | FD_ZERO (&readfds); |
806 | FD_SET (fd, &readfds); | |
f0881b37 | 807 | if (interruptible_select (fd + 1, &readfds, NULL, NULL, NULL) == -1) |
3212b858 PA |
808 | { |
809 | if (errno == EINTR) | |
810 | { | |
811 | /* If this was ctrl-c, the QUIT above handles it. */ | |
812 | continue; | |
813 | } | |
814 | perror_with_name (("select")); | |
815 | } | |
816 | ||
817 | c = fgetc (stream); | |
9e0b60a8 | 818 | |
d318976c | 819 | if (c == EOF) |
9e0b60a8 | 820 | { |
7a3bde34 | 821 | if (line_buffer.used_size > 0) |
d318976c FN |
822 | /* The last line does not end with a newline. Return it, and |
823 | if we are called again fgetc will still return EOF and | |
824 | we'll return NULL then. */ | |
9e0b60a8 | 825 | break; |
7a3bde34 | 826 | xfree (buffer_finish (&line_buffer)); |
d318976c | 827 | return NULL; |
9e0b60a8 | 828 | } |
c5aa993b | 829 | |
d318976c | 830 | if (c == '\n') |
9e0b60a8 | 831 | { |
7a3bde34 PA |
832 | if (line_buffer.used_size > 0 |
833 | && line_buffer.buffer[line_buffer.used_size - 1] == '\r') | |
834 | line_buffer.used_size--; | |
d318976c | 835 | break; |
9e0b60a8 | 836 | } |
9e0b60a8 | 837 | |
7a3bde34 | 838 | buffer_grow_char (&line_buffer, c); |
9e0b60a8 JM |
839 | } |
840 | ||
7a3bde34 PA |
841 | buffer_grow_char (&line_buffer, '\0'); |
842 | return buffer_finish (&line_buffer); | |
9e0b60a8 JM |
843 | } |
844 | ||
d318976c FN |
845 | /* Variables which control command line editing and history |
846 | substitution. These variables are given default values at the end | |
847 | of this file. */ | |
848 | static int command_editing_p; | |
920d2a44 | 849 | |
d318976c FN |
850 | /* NOTE 1999-04-29: This variable will be static again, once we modify |
851 | gdb to use the event loop as the default command loop and we merge | |
c378eb4e | 852 | event-top.c into this file, top.c. */ |
920d2a44 | 853 | |
d318976c | 854 | /* static */ int history_expansion_p; |
920d2a44 | 855 | |
d318976c | 856 | static int write_history_p; |
920d2a44 AC |
857 | static void |
858 | show_write_history_p (struct ui_file *file, int from_tty, | |
859 | struct cmd_list_element *c, const char *value) | |
860 | { | |
861 | fprintf_filtered (file, _("Saving of the history record on exit is %s.\n"), | |
862 | value); | |
863 | } | |
864 | ||
840a9a1f | 865 | /* The variable associated with the "set/show history size" |
ebfd00d2 PP |
866 | command. The value -1 means unlimited, and -2 means undefined. */ |
867 | static int history_size_setshow_var = -2; | |
840a9a1f | 868 | |
920d2a44 AC |
869 | static void |
870 | show_history_size (struct ui_file *file, int from_tty, | |
871 | struct cmd_list_element *c, const char *value) | |
872 | { | |
873 | fprintf_filtered (file, _("The size of the command history is %s.\n"), | |
874 | value); | |
875 | } | |
876 | ||
fc637f04 PP |
877 | /* Variable associated with the "history remove-duplicates" option. |
878 | The value -1 means unlimited. */ | |
879 | static int history_remove_duplicates = 0; | |
880 | ||
881 | static void | |
882 | show_history_remove_duplicates (struct ui_file *file, int from_tty, | |
883 | struct cmd_list_element *c, const char *value) | |
884 | { | |
885 | fprintf_filtered (file, | |
886 | _("The number of history entries to look back at for " | |
887 | "duplicates is %s.\n"), | |
888 | value); | |
889 | } | |
890 | ||
d318976c | 891 | static char *history_filename; |
920d2a44 AC |
892 | static void |
893 | show_history_filename (struct ui_file *file, int from_tty, | |
894 | struct cmd_list_element *c, const char *value) | |
895 | { | |
3e43a32a MS |
896 | fprintf_filtered (file, _("The filename in which to record " |
897 | "the command history is \"%s\".\n"), | |
920d2a44 AC |
898 | value); |
899 | } | |
9e0b60a8 | 900 | |
b4f5539f | 901 | /* This is like readline(), but it has some gdb-specific behavior. |
2e03ee74 | 902 | gdb may want readline in both the synchronous and async modes during |
b4f5539f TT |
903 | a single gdb invocation. At the ordinary top-level prompt we might |
904 | be using the async readline. That means we can't use | |
905 | rl_pre_input_hook, since it doesn't work properly in async mode. | |
906 | However, for a secondary prompt (" >", such as occurs during a | |
2e03ee74 DJ |
907 | `define'), gdb wants a synchronous response. |
908 | ||
909 | We used to call readline() directly, running it in synchronous | |
910 | mode. But mixing modes this way is not supported, and as of | |
911 | readline 5.x it no longer works; the arrow keys come unbound during | |
912 | the synchronous call. So we make a nested call into the event | |
913 | loop. That's what gdb_readline_wrapper is for. */ | |
914 | ||
915 | /* A flag set as soon as gdb_readline_wrapper_line is called; we can't | |
916 | rely on gdb_readline_wrapper_result, which might still be NULL if | |
917 | the user types Control-D for EOF. */ | |
918 | static int gdb_readline_wrapper_done; | |
919 | ||
920 | /* The result of the current call to gdb_readline_wrapper, once a newline | |
921 | is seen. */ | |
922 | static char *gdb_readline_wrapper_result; | |
923 | ||
924 | /* Any intercepted hook. Operate-and-get-next sets this, expecting it | |
925 | to be called after the newline is processed (which will redisplay | |
926 | the prompt). But in gdb_readline_wrapper we will not get a new | |
927 | prompt until the next call, or until we return to the event loop. | |
928 | So we disable this hook around the newline and restore it before we | |
929 | return. */ | |
930 | static void (*saved_after_char_processing_hook) (void); | |
931 | ||
948578a9 | 932 | |
948578a9 PP |
933 | /* See top.h. */ |
934 | ||
935 | int | |
dbf30ca3 | 936 | gdb_in_secondary_prompt_p (struct ui *ui) |
948578a9 | 937 | { |
dbf30ca3 | 938 | return ui->secondary_prompt_depth > 0; |
948578a9 PP |
939 | } |
940 | ||
941 | ||
2e03ee74 DJ |
942 | /* This function is called when readline has seen a complete line of |
943 | text. */ | |
944 | ||
945 | static void | |
946 | gdb_readline_wrapper_line (char *line) | |
947 | { | |
948 | gdb_assert (!gdb_readline_wrapper_done); | |
949 | gdb_readline_wrapper_result = line; | |
950 | gdb_readline_wrapper_done = 1; | |
951 | ||
952 | /* Prevent operate-and-get-next from acting too early. */ | |
953 | saved_after_char_processing_hook = after_char_processing_hook; | |
954 | after_char_processing_hook = NULL; | |
1b05479a DJ |
955 | |
956 | /* Prevent parts of the prompt from being redisplayed if annotations | |
0017922d | 957 | are enabled, and readline's state getting out of sync. We'll |
d3d4baed PA |
958 | reinstall the callback handler, which puts the terminal in raw |
959 | mode (or in readline lingo, in prepped state), when we're next | |
960 | ready to process user input, either in display_gdb_prompt, or if | |
961 | we're handling an asynchronous target event and running in the | |
962 | background, just before returning to the event loop to process | |
963 | further input (or more target events). */ | |
3c216924 | 964 | if (current_ui->command_editing) |
d3d4baed | 965 | gdb_rl_callback_handler_remove (); |
2e03ee74 DJ |
966 | } |
967 | ||
968 | struct gdb_readline_wrapper_cleanup | |
969 | { | |
970 | void (*handler_orig) (char *); | |
2e03ee74 | 971 | int already_prompted_orig; |
93d6eb10 PA |
972 | |
973 | /* Whether the target was async. */ | |
974 | int target_is_async_orig; | |
2e03ee74 DJ |
975 | }; |
976 | ||
977 | static void | |
978 | gdb_readline_wrapper_cleanup (void *arg) | |
979 | { | |
a74e1786 | 980 | struct ui *ui = current_ui; |
19ba03f4 SM |
981 | struct gdb_readline_wrapper_cleanup *cleanup |
982 | = (struct gdb_readline_wrapper_cleanup *) arg; | |
2e03ee74 | 983 | |
3c216924 PA |
984 | if (ui->command_editing) |
985 | rl_already_prompted = cleanup->already_prompted_orig; | |
2e03ee74 | 986 | |
a74e1786 PA |
987 | gdb_assert (ui->input_handler == gdb_readline_wrapper_line); |
988 | ui->input_handler = cleanup->handler_orig; | |
0017922d | 989 | |
d3d4baed PA |
990 | /* Don't restore our input handler in readline yet. That would make |
991 | readline prep the terminal (putting it in raw mode), while the | |
992 | line we just read may trigger execution of a command that expects | |
993 | the terminal in the default cooked/canonical mode, such as e.g., | |
994 | running Python's interactive online help utility. See | |
995 | gdb_readline_wrapper_line for when we'll reinstall it. */ | |
0017922d | 996 | |
2e03ee74 DJ |
997 | gdb_readline_wrapper_result = NULL; |
998 | gdb_readline_wrapper_done = 0; | |
dbf30ca3 PA |
999 | ui->secondary_prompt_depth--; |
1000 | gdb_assert (ui->secondary_prompt_depth >= 0); | |
2e03ee74 DJ |
1001 | |
1002 | after_char_processing_hook = saved_after_char_processing_hook; | |
1003 | saved_after_char_processing_hook = NULL; | |
1004 | ||
93d6eb10 | 1005 | if (cleanup->target_is_async_orig) |
6a3753b3 | 1006 | target_async (1); |
93d6eb10 | 1007 | |
2e03ee74 DJ |
1008 | xfree (cleanup); |
1009 | } | |
1010 | ||
b4f5539f | 1011 | char * |
38bcc89d | 1012 | gdb_readline_wrapper (const char *prompt) |
b4f5539f | 1013 | { |
a74e1786 | 1014 | struct ui *ui = current_ui; |
2e03ee74 DJ |
1015 | struct cleanup *back_to; |
1016 | struct gdb_readline_wrapper_cleanup *cleanup; | |
1017 | char *retval; | |
1018 | ||
8d749320 | 1019 | cleanup = XNEW (struct gdb_readline_wrapper_cleanup); |
a74e1786 PA |
1020 | cleanup->handler_orig = ui->input_handler; |
1021 | ui->input_handler = gdb_readline_wrapper_line; | |
2e03ee74 | 1022 | |
3c216924 PA |
1023 | if (ui->command_editing) |
1024 | cleanup->already_prompted_orig = rl_already_prompted; | |
1025 | else | |
1026 | cleanup->already_prompted_orig = 0; | |
2e03ee74 | 1027 | |
93d6eb10 PA |
1028 | cleanup->target_is_async_orig = target_is_async_p (); |
1029 | ||
dbf30ca3 | 1030 | ui->secondary_prompt_depth++; |
2e03ee74 DJ |
1031 | back_to = make_cleanup (gdb_readline_wrapper_cleanup, cleanup); |
1032 | ||
93d6eb10 | 1033 | if (cleanup->target_is_async_orig) |
6a3753b3 | 1034 | target_async (0); |
93d6eb10 | 1035 | |
2e03ee74 | 1036 | /* Display our prompt and prevent double prompt display. */ |
1b05479a | 1037 | display_gdb_prompt (prompt); |
3c216924 PA |
1038 | if (ui->command_editing) |
1039 | rl_already_prompted = 1; | |
2e03ee74 | 1040 | |
362646f5 | 1041 | if (after_char_processing_hook) |
2e03ee74 DJ |
1042 | (*after_char_processing_hook) (); |
1043 | gdb_assert (after_char_processing_hook == NULL); | |
1044 | ||
e0dd0826 | 1045 | while (gdb_do_one_event () >= 0) |
2e03ee74 DJ |
1046 | if (gdb_readline_wrapper_done) |
1047 | break; | |
b4f5539f | 1048 | |
2e03ee74 DJ |
1049 | retval = gdb_readline_wrapper_result; |
1050 | do_cleanups (back_to); | |
1051 | return retval; | |
b4f5539f TT |
1052 | } |
1053 | ||
9e0b60a8 | 1054 | \f |
467d8519 TT |
1055 | /* The current saved history number from operate-and-get-next. |
1056 | This is -1 if not valid. */ | |
1057 | static int operate_saved_history = -1; | |
1058 | ||
1059 | /* This is put on the appropriate hook and helps operate-and-get-next | |
1060 | do its work. */ | |
b9362cc7 | 1061 | static void |
5ae5f592 | 1062 | gdb_rl_operate_and_get_next_completion (void) |
467d8519 TT |
1063 | { |
1064 | int delta = where_history () - operate_saved_history; | |
5d502164 | 1065 | |
467d8519 TT |
1066 | /* The `key' argument to rl_get_previous_history is ignored. */ |
1067 | rl_get_previous_history (delta, 0); | |
1068 | operate_saved_history = -1; | |
1069 | ||
1070 | /* readline doesn't automatically update the display for us. */ | |
12f4afab | 1071 | rl_redisplay (); |
467d8519 TT |
1072 | |
1073 | after_char_processing_hook = NULL; | |
1074 | rl_pre_input_hook = NULL; | |
1075 | } | |
1076 | ||
1077 | /* This is a gdb-local readline command handler. It accepts the | |
1078 | current command line (like RET does) and, if this command was taken | |
1079 | from the history, arranges for the next command in the history to | |
1080 | appear on the command line when the prompt returns. | |
1081 | We ignore the arguments. */ | |
1082 | static int | |
1083 | gdb_rl_operate_and_get_next (int count, int key) | |
1084 | { | |
b5686e99 MK |
1085 | int where; |
1086 | ||
362646f5 AC |
1087 | /* Use the async hook. */ |
1088 | after_char_processing_hook = gdb_rl_operate_and_get_next_completion; | |
467d8519 | 1089 | |
b5686e99 MK |
1090 | /* Find the current line, and find the next line to use. */ |
1091 | where = where_history(); | |
1092 | ||
1fb2e2b5 PA |
1093 | if ((history_is_stifled () && (history_length >= history_max_entries)) |
1094 | || (where >= history_length - 1)) | |
b5686e99 MK |
1095 | operate_saved_history = where; |
1096 | else | |
1097 | operate_saved_history = where + 1; | |
1098 | ||
467d8519 TT |
1099 | return rl_newline (1, key); |
1100 | } | |
08b13bdd PP |
1101 | |
1102 | /* Number of user commands executed during this session. */ | |
1103 | ||
1104 | static int command_count = 0; | |
1105 | ||
1106 | /* Add the user command COMMAND to the input history list. */ | |
1107 | ||
1108 | void | |
1109 | gdb_add_history (const char *command) | |
1110 | { | |
08b13bdd | 1111 | command_count++; |
fc637f04 PP |
1112 | |
1113 | if (history_remove_duplicates != 0) | |
1114 | { | |
1115 | int lookbehind; | |
1116 | int lookbehind_threshold; | |
1117 | ||
1118 | /* The lookbehind threshold for finding a duplicate history entry is | |
1119 | bounded by command_count because we can't meaningfully delete | |
1120 | history entries that are already stored in the history file since | |
1121 | the history file is appended to. */ | |
1122 | if (history_remove_duplicates == -1 | |
1123 | || history_remove_duplicates > command_count) | |
1124 | lookbehind_threshold = command_count; | |
1125 | else | |
1126 | lookbehind_threshold = history_remove_duplicates; | |
1127 | ||
1128 | using_history (); | |
1129 | for (lookbehind = 0; lookbehind < lookbehind_threshold; lookbehind++) | |
1130 | { | |
1131 | HIST_ENTRY *temp = previous_history (); | |
1132 | ||
1133 | if (temp == NULL) | |
1134 | break; | |
1135 | ||
1136 | if (strcmp (temp->line, command) == 0) | |
1137 | { | |
1138 | HIST_ENTRY *prev = remove_history (where_history ()); | |
1139 | command_count--; | |
1140 | free_history_entry (prev); | |
1141 | break; | |
1142 | } | |
1143 | } | |
1144 | using_history (); | |
1145 | } | |
1146 | ||
1147 | add_history (command); | |
08b13bdd PP |
1148 | } |
1149 | ||
1150 | /* Safely append new history entries to the history file in a corruption-free | |
1151 | way using an intermediate local history file. */ | |
1152 | ||
1153 | static void | |
1154 | gdb_safe_append_history (void) | |
1155 | { | |
1156 | int ret, saved_errno; | |
1157 | char *local_history_filename; | |
1158 | struct cleanup *old_chain; | |
1159 | ||
1160 | local_history_filename | |
1161 | = xstrprintf ("%s-gdb%d~", history_filename, getpid ()); | |
1162 | old_chain = make_cleanup (xfree, local_history_filename); | |
1163 | ||
1164 | ret = rename (history_filename, local_history_filename); | |
1165 | saved_errno = errno; | |
1166 | if (ret < 0 && saved_errno != ENOENT) | |
1167 | { | |
1168 | warning (_("Could not rename %s to %s: %s"), | |
1169 | history_filename, local_history_filename, | |
1170 | safe_strerror (saved_errno)); | |
1171 | } | |
1172 | else | |
1173 | { | |
1174 | if (ret < 0) | |
1175 | { | |
1176 | /* If the rename failed with ENOENT then either the global history | |
1177 | file never existed in the first place or another GDB process is | |
1178 | currently appending to it (and has thus temporarily renamed it). | |
1179 | Since we can't distinguish between these two cases, we have to | |
1180 | conservatively assume the first case and therefore must write out | |
1181 | (not append) our known history to our local history file and try | |
1182 | to move it back anyway. Otherwise a global history file would | |
1183 | never get created! */ | |
1184 | gdb_assert (saved_errno == ENOENT); | |
1185 | write_history (local_history_filename); | |
1186 | } | |
1187 | else | |
1188 | { | |
1189 | append_history (command_count, local_history_filename); | |
2093d2d3 PP |
1190 | if (history_is_stifled ()) |
1191 | history_truncate_file (local_history_filename, history_max_entries); | |
08b13bdd PP |
1192 | } |
1193 | ||
1194 | ret = rename (local_history_filename, history_filename); | |
1195 | saved_errno = errno; | |
1196 | if (ret < 0 && saved_errno != EEXIST) | |
1197 | warning (_("Could not rename %s to %s: %s"), | |
1198 | local_history_filename, history_filename, | |
1199 | safe_strerror (saved_errno)); | |
1200 | } | |
1201 | ||
1202 | do_cleanups (old_chain); | |
1203 | } | |
1204 | ||
b69d38af PA |
1205 | /* Read one line from the command input stream `instream' into a local |
1206 | static buffer. The buffer is made bigger as necessary. Returns | |
1207 | the address of the start of the line. | |
9e0b60a8 | 1208 | |
d318976c | 1209 | NULL is returned for end of file. |
9e0b60a8 | 1210 | |
268a799a | 1211 | *If* input is from an interactive stream (stdin), the line read is |
b69d38af PA |
1212 | copied into the global 'saved_command_line' so that it can be |
1213 | repeated. | |
9e0b60a8 | 1214 | |
b69d38af PA |
1215 | This routine either uses fancy command line editing or simple input |
1216 | as the user has requested. */ | |
10689f25 | 1217 | |
d318976c | 1218 | char * |
38bcc89d | 1219 | command_line_input (const char *prompt_arg, int repeat, char *annotation_suffix) |
9e0b60a8 | 1220 | { |
b69d38af PA |
1221 | static struct buffer cmd_line_buffer; |
1222 | static int cmd_line_buffer_initialized; | |
f38d3ad1 | 1223 | struct ui *ui = current_ui; |
38bcc89d | 1224 | const char *prompt = prompt_arg; |
b69d38af | 1225 | char *cmd; |
268a799a | 1226 | int from_tty = ui->instream == ui->stdin_stream; |
d318976c FN |
1227 | |
1228 | /* The annotation suffix must be non-NULL. */ | |
1229 | if (annotation_suffix == NULL) | |
1230 | annotation_suffix = ""; | |
9e0b60a8 | 1231 | |
268a799a | 1232 | if (from_tty && annotation_level > 1) |
d318976c | 1233 | { |
38bcc89d SM |
1234 | char *local_prompt; |
1235 | ||
224c3ddb SM |
1236 | local_prompt |
1237 | = (char *) alloca ((prompt == NULL ? 0 : strlen (prompt)) | |
1238 | + strlen (annotation_suffix) + 40); | |
38bcc89d | 1239 | if (prompt == NULL) |
d318976c FN |
1240 | local_prompt[0] = '\0'; |
1241 | else | |
38bcc89d | 1242 | strcpy (local_prompt, prompt); |
d318976c FN |
1243 | strcat (local_prompt, "\n\032\032"); |
1244 | strcat (local_prompt, annotation_suffix); | |
1245 | strcat (local_prompt, "\n"); | |
38bcc89d SM |
1246 | |
1247 | prompt = local_prompt; | |
d318976c | 1248 | } |
9e0b60a8 | 1249 | |
b69d38af | 1250 | if (!cmd_line_buffer_initialized) |
9e0b60a8 | 1251 | { |
b69d38af PA |
1252 | buffer_init (&cmd_line_buffer); |
1253 | cmd_line_buffer_initialized = 1; | |
9e0b60a8 | 1254 | } |
9e0b60a8 | 1255 | |
b69d38af PA |
1256 | /* Starting a new command line. */ |
1257 | cmd_line_buffer.used_size = 0; | |
9e0b60a8 | 1258 | |
d318976c FN |
1259 | #ifdef STOP_SIGNAL |
1260 | if (job_control) | |
362646f5 | 1261 | signal (STOP_SIGNAL, handle_stop_sig); |
d318976c FN |
1262 | #endif |
1263 | ||
1264 | while (1) | |
9e0b60a8 | 1265 | { |
b69d38af PA |
1266 | char *rl; |
1267 | ||
371d5dec MS |
1268 | /* Make sure that all output has been output. Some machines may |
1269 | let you get away with leaving out some of the gdb_flush, but | |
1270 | not all. */ | |
d318976c FN |
1271 | wrap_here (""); |
1272 | gdb_flush (gdb_stdout); | |
1273 | gdb_flush (gdb_stderr); | |
1274 | ||
1275 | if (source_file_name != NULL) | |
637537d0 | 1276 | ++source_line_number; |
d318976c | 1277 | |
268a799a | 1278 | if (from_tty && annotation_level > 1) |
d318976c | 1279 | { |
306d9ac5 DC |
1280 | puts_unfiltered ("\n\032\032pre-"); |
1281 | puts_unfiltered (annotation_suffix); | |
1282 | puts_unfiltered ("\n"); | |
d318976c FN |
1283 | } |
1284 | ||
1285 | /* Don't use fancy stuff if not talking to stdin. */ | |
268a799a PA |
1286 | if (deprecated_readline_hook |
1287 | && from_tty | |
1288 | && input_interactive_p (current_ui)) | |
d318976c | 1289 | { |
38bcc89d | 1290 | rl = (*deprecated_readline_hook) (prompt); |
d318976c | 1291 | } |
268a799a PA |
1292 | else if (command_editing_p |
1293 | && from_tty | |
1294 | && input_interactive_p (current_ui)) | |
d318976c | 1295 | { |
38bcc89d | 1296 | rl = gdb_readline_wrapper (prompt); |
d318976c | 1297 | } |
9e0b60a8 | 1298 | else |
d318976c | 1299 | { |
c5c136ea | 1300 | rl = gdb_readline_no_editing (prompt); |
d318976c | 1301 | } |
9e0b60a8 | 1302 | |
b69d38af PA |
1303 | cmd = handle_line_of_input (&cmd_line_buffer, rl, |
1304 | repeat, annotation_suffix); | |
1305 | if (cmd == (char *) EOF) | |
d318976c | 1306 | { |
b69d38af | 1307 | cmd = NULL; |
d318976c | 1308 | break; |
9e0b60a8 | 1309 | } |
b69d38af | 1310 | if (cmd != NULL) |
d318976c | 1311 | break; |
9e0b60a8 | 1312 | |
38bcc89d | 1313 | prompt = NULL; |
d318976c | 1314 | } |
9e0b60a8 | 1315 | |
d318976c FN |
1316 | #ifdef STOP_SIGNAL |
1317 | if (job_control) | |
1318 | signal (STOP_SIGNAL, SIG_DFL); | |
1319 | #endif | |
9e0b60a8 | 1320 | |
b69d38af | 1321 | return cmd; |
9e0b60a8 JM |
1322 | } |
1323 | \f | |
371d5dec | 1324 | /* Print the GDB banner. */ |
9e0b60a8 | 1325 | void |
fba45db2 | 1326 | print_gdb_version (struct ui_file *stream) |
9e0b60a8 JM |
1327 | { |
1328 | /* From GNU coding standards, first line is meant to be easy for a | |
1329 | program to parse, and is just canonical program name and version | |
371d5dec | 1330 | number, which starts after last space. */ |
9e0b60a8 | 1331 | |
c16158bc | 1332 | fprintf_filtered (stream, "GNU gdb %s%s\n", PKGVERSION, version); |
9e0b60a8 | 1333 | |
371d5dec | 1334 | /* Second line is a copyright notice. */ |
9e0b60a8 | 1335 | |
3e43a32a | 1336 | fprintf_filtered (stream, |
edd88788 | 1337 | "Copyright (C) 2016 Free Software Foundation, Inc.\n"); |
9e0b60a8 JM |
1338 | |
1339 | /* Following the copyright is a brief statement that the program is | |
1340 | free software, that users are free to copy and change it on | |
1341 | certain conditions, that it is covered by the GNU GPL, and that | |
371d5dec | 1342 | there is no warranty. */ |
9e0b60a8 JM |
1343 | |
1344 | fprintf_filtered (stream, "\ | |
3e43a32a MS |
1345 | License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\ |
1346 | \nThis is free software: you are free to change and redistribute it.\n\ | |
0b93d57c | 1347 | There is NO WARRANTY, to the extent permitted by law. Type \"show copying\"\n\ |
b8533aec | 1348 | and \"show warranty\" for details.\n"); |
9e0b60a8 | 1349 | |
371d5dec | 1350 | /* After the required info we print the configuration information. */ |
9e0b60a8 JM |
1351 | |
1352 | fprintf_filtered (stream, "This GDB was configured as \""); | |
6314a349 | 1353 | if (strcmp (host_name, target_name) != 0) |
9e0b60a8 | 1354 | { |
3e43a32a MS |
1355 | fprintf_filtered (stream, "--host=%s --target=%s", |
1356 | host_name, target_name); | |
9e0b60a8 JM |
1357 | } |
1358 | else | |
1359 | { | |
1360 | fprintf_filtered (stream, "%s", host_name); | |
1361 | } | |
6eaaf48b EZ |
1362 | fprintf_filtered (stream, "\".\n\ |
1363 | Type \"show configuration\" for configuration details."); | |
c16158bc JM |
1364 | |
1365 | if (REPORT_BUGS_TO[0]) | |
1366 | { | |
6eaaf48b | 1367 | fprintf_filtered (stream, |
c16158bc | 1368 | _("\nFor bug reporting instructions, please see:\n")); |
1cf55f60 | 1369 | fprintf_filtered (stream, "%s.\n", REPORT_BUGS_TO); |
c16158bc | 1370 | } |
1cf55f60 PM |
1371 | fprintf_filtered (stream, |
1372 | _("Find the GDB manual and other documentation \ | |
1373 | resources online at:\n<http://www.gnu.org/software/gdb/documentation/>.\n")); | |
1374 | fprintf_filtered (stream, _("For help, type \"help\".\n")); | |
1375 | fprintf_filtered (stream, _("Type \"apropos word\" to search for \ | |
af4c453a | 1376 | commands related to \"word\".")); |
9e0b60a8 | 1377 | } |
6eaaf48b EZ |
1378 | |
1379 | /* Print the details of GDB build-time configuration. */ | |
1380 | void | |
1381 | print_gdb_configuration (struct ui_file *stream) | |
1382 | { | |
1383 | fprintf_filtered (stream, _("\ | |
1384 | This GDB was configured as follows:\n\ | |
1385 | configure --host=%s --target=%s\n\ | |
1386 | "), host_name, target_name); | |
1387 | fprintf_filtered (stream, _("\ | |
1388 | --with-auto-load-dir=%s\n\ | |
1389 | --with-auto-load-safe-path=%s\n\ | |
1390 | "), AUTO_LOAD_DIR, AUTO_LOAD_SAFE_PATH); | |
1391 | #if HAVE_LIBEXPAT | |
1392 | fprintf_filtered (stream, _("\ | |
1393 | --with-expat\n\ | |
1394 | ")); | |
1395 | #else | |
1396 | fprintf_filtered (stream, _("\ | |
1397 | --without-expat\n\ | |
1398 | ")); | |
1399 | #endif | |
1400 | if (GDB_DATADIR[0]) | |
1401 | fprintf_filtered (stream, _("\ | |
1402 | --with-gdb-datadir=%s%s\n\ | |
1403 | "), GDB_DATADIR, GDB_DATADIR_RELOCATABLE ? " (relocatable)" : ""); | |
1404 | #ifdef ICONV_BIN | |
1405 | fprintf_filtered (stream, _("\ | |
1406 | --with-iconv-bin=%s%s\n\ | |
1407 | "), ICONV_BIN, ICONV_BIN_RELOCATABLE ? " (relocatable)" : ""); | |
1408 | #endif | |
1409 | if (JIT_READER_DIR[0]) | |
1410 | fprintf_filtered (stream, _("\ | |
1411 | --with-jit-reader-dir=%s%s\n\ | |
1412 | "), JIT_READER_DIR, JIT_READER_DIR_RELOCATABLE ? " (relocatable)" : ""); | |
1413 | #if HAVE_LIBUNWIND_IA64_H | |
1414 | fprintf_filtered (stream, _("\ | |
1415 | --with-libunwind-ia64\n\ | |
1416 | ")); | |
1417 | #else | |
1418 | fprintf_filtered (stream, _("\ | |
1419 | --without-libunwind-ia64\n\ | |
1420 | ")); | |
1421 | #endif | |
1422 | #if HAVE_LIBLZMA | |
1423 | fprintf_filtered (stream, _("\ | |
1424 | --with-lzma\n\ | |
1425 | ")); | |
1426 | #else | |
1427 | fprintf_filtered (stream, _("\ | |
1428 | --without-lzma\n\ | |
1429 | ")); | |
1430 | #endif | |
1431 | #ifdef WITH_PYTHON_PATH | |
1432 | fprintf_filtered (stream, _("\ | |
1433 | --with-python=%s%s\n\ | |
1434 | "), WITH_PYTHON_PATH, PYTHON_PATH_RELOCATABLE ? " (relocatable)" : ""); | |
1435 | #endif | |
97d66cc6 EZ |
1436 | #if HAVE_GUILE |
1437 | fprintf_filtered (stream, _("\ | |
1438 | --with-guile\n\ | |
1439 | ")); | |
1440 | #else | |
1441 | fprintf_filtered (stream, _("\ | |
1442 | --without-guile\n\ | |
1443 | ")); | |
1444 | #endif | |
6eaaf48b EZ |
1445 | #ifdef RELOC_SRCDIR |
1446 | fprintf_filtered (stream, _("\ | |
1447 | --with-relocated-sources=%s\n\ | |
1448 | "), RELOC_SRCDIR); | |
1449 | #endif | |
1450 | if (DEBUGDIR[0]) | |
1451 | fprintf_filtered (stream, _("\ | |
1452 | --with-separate-debug-dir=%s%s\n\ | |
1453 | "), DEBUGDIR, DEBUGDIR_RELOCATABLE ? " (relocatable)" : ""); | |
1454 | if (TARGET_SYSTEM_ROOT[0]) | |
1455 | fprintf_filtered (stream, _("\ | |
1456 | --with-sysroot=%s%s\n\ | |
1457 | "), TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT_RELOCATABLE ? " (relocatable)" : ""); | |
1458 | if (SYSTEM_GDBINIT[0]) | |
1459 | fprintf_filtered (stream, _("\ | |
1460 | --with-system-gdbinit=%s%s\n\ | |
1461 | "), SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE ? " (relocatable)" : ""); | |
ab116149 YQ |
1462 | #if HAVE_LIBBABELTRACE |
1463 | fprintf_filtered (stream, _("\ | |
1464 | --with-babeltrace\n\ | |
1465 | ")); | |
1466 | #else | |
1467 | fprintf_filtered (stream, _("\ | |
1468 | --without-babeltrace\n\ | |
1469 | ")); | |
1470 | #endif | |
48d1d6f5 EZ |
1471 | /* We assume "relocatable" will be printed at least once, thus we always |
1472 | print this text. It's a reasonably safe assumption for now. */ | |
1473 | fprintf_filtered (stream, _("\n\ | |
1474 | (\"Relocatable\" means the directory can be moved with the GDB installation\n\ | |
1475 | tree, and GDB will still find it.)\n\ | |
1476 | ")); | |
6eaaf48b | 1477 | } |
9e0b60a8 | 1478 | \f |
95298e72 | 1479 | |
ab821bc6 PA |
1480 | /* The current top level prompt, settable with "set prompt", and/or |
1481 | with the python `gdb.prompt_hook' hook. */ | |
1482 | static char *top_prompt; | |
9e0b60a8 | 1483 | |
ab821bc6 | 1484 | /* Access method for the GDB prompt string. */ |
95298e72 PM |
1485 | |
1486 | char * | |
ab821bc6 | 1487 | get_prompt (void) |
95298e72 | 1488 | { |
ab821bc6 | 1489 | return top_prompt; |
95298e72 PM |
1490 | } |
1491 | ||
ab821bc6 | 1492 | /* Set method for the GDB prompt string. */ |
95298e72 PM |
1493 | |
1494 | void | |
ab821bc6 | 1495 | set_prompt (const char *s) |
95298e72 | 1496 | { |
ab821bc6 | 1497 | char *p = xstrdup (s); |
95298e72 | 1498 | |
ab821bc6 PA |
1499 | xfree (top_prompt); |
1500 | top_prompt = p; | |
9e0b60a8 | 1501 | } |
9e0b60a8 | 1502 | \f |
c5aa993b | 1503 | |
b0abbc58 | 1504 | struct qt_args |
9e0b60a8 | 1505 | { |
b0abbc58 JJ |
1506 | char *args; |
1507 | int from_tty; | |
1508 | }; | |
9e0b60a8 | 1509 | |
54a012c9 PA |
1510 | /* Callback for iterate_over_inferiors. Kills or detaches the given |
1511 | inferior, depending on how we originally gained control of it. */ | |
1512 | ||
1513 | static int | |
1514 | kill_or_detach (struct inferior *inf, void *args) | |
1515 | { | |
19ba03f4 | 1516 | struct qt_args *qt = (struct qt_args *) args; |
54a012c9 PA |
1517 | struct thread_info *thread; |
1518 | ||
6c95b8df PA |
1519 | if (inf->pid == 0) |
1520 | return 0; | |
1521 | ||
b8fa0bfa PA |
1522 | thread = any_thread_of_process (inf->pid); |
1523 | if (thread != NULL) | |
9e0b60a8 | 1524 | { |
54a012c9 | 1525 | switch_to_thread (thread->ptid); |
c35b1492 PA |
1526 | |
1527 | /* Leave core files alone. */ | |
1528 | if (target_has_execution) | |
1529 | { | |
1530 | if (inf->attach_flag) | |
1531 | target_detach (qt->args, qt->from_tty); | |
1532 | else | |
1533 | target_kill (); | |
1534 | } | |
9e0b60a8 JM |
1535 | } |
1536 | ||
54a012c9 PA |
1537 | return 0; |
1538 | } | |
1539 | ||
b8fa0bfa PA |
1540 | /* Callback for iterate_over_inferiors. Prints info about what GDB |
1541 | will do to each inferior on a "quit". ARG points to a struct | |
1542 | ui_out where output is to be collected. */ | |
1543 | ||
1544 | static int | |
1545 | print_inferior_quit_action (struct inferior *inf, void *arg) | |
1546 | { | |
19ba03f4 | 1547 | struct ui_file *stb = (struct ui_file *) arg; |
b8fa0bfa | 1548 | |
6c95b8df PA |
1549 | if (inf->pid == 0) |
1550 | return 0; | |
1551 | ||
b8fa0bfa PA |
1552 | if (inf->attach_flag) |
1553 | fprintf_filtered (stb, | |
1554 | _("\tInferior %d [%s] will be detached.\n"), inf->num, | |
1555 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1556 | else | |
1557 | fprintf_filtered (stb, | |
1558 | _("\tInferior %d [%s] will be killed.\n"), inf->num, | |
1559 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
1560 | ||
1561 | return 0; | |
1562 | } | |
1563 | ||
1564 | /* If necessary, make the user confirm that we should quit. Return | |
1565 | non-zero if we should quit, zero if we shouldn't. */ | |
1566 | ||
1567 | int | |
1568 | quit_confirm (void) | |
1569 | { | |
1570 | struct ui_file *stb; | |
1571 | struct cleanup *old_chain; | |
1572 | char *str; | |
1573 | int qr; | |
1574 | ||
1575 | /* Don't even ask if we're only debugging a core file inferior. */ | |
1576 | if (!have_live_inferiors ()) | |
1577 | return 1; | |
1578 | ||
1579 | /* Build the query string as a single string. */ | |
1580 | stb = mem_fileopen (); | |
1581 | old_chain = make_cleanup_ui_file_delete (stb); | |
1582 | ||
5a5d8ead AB |
1583 | fprintf_filtered (stb, _("A debugging session is active.\n\n")); |
1584 | iterate_over_inferiors (print_inferior_quit_action, stb); | |
1585 | fprintf_filtered (stb, _("\nQuit anyway? ")); | |
b8fa0bfa PA |
1586 | |
1587 | str = ui_file_xstrdup (stb, NULL); | |
1588 | make_cleanup (xfree, str); | |
1589 | ||
1590 | qr = query ("%s", str); | |
1591 | do_cleanups (old_chain); | |
1592 | return qr; | |
1593 | } | |
1594 | ||
18206ca3 PP |
1595 | /* Prepare to exit GDB cleanly by undoing any changes made to the |
1596 | terminal so that we leave the terminal in the state we acquired it. */ | |
1597 | ||
1598 | static void | |
1599 | undo_terminal_modifications_before_exit (void) | |
1600 | { | |
3c216924 PA |
1601 | struct ui *saved_top_level = current_ui; |
1602 | ||
18206ca3 | 1603 | target_terminal_ours (); |
3c216924 PA |
1604 | |
1605 | current_ui = main_ui; | |
1606 | ||
18206ca3 PP |
1607 | #if defined(TUI) |
1608 | tui_disable (); | |
1609 | #endif | |
3c216924 PA |
1610 | gdb_disable_readline (); |
1611 | ||
1612 | current_ui = saved_top_level; | |
18206ca3 PP |
1613 | } |
1614 | ||
1615 | ||
b0abbc58 JJ |
1616 | /* Quit without asking for confirmation. */ |
1617 | ||
1618 | void | |
1619 | quit_force (char *args, int from_tty) | |
1620 | { | |
1621 | int exit_code = 0; | |
365c70b1 | 1622 | struct qt_args qt; |
b0abbc58 | 1623 | |
18206ca3 PP |
1624 | undo_terminal_modifications_before_exit (); |
1625 | ||
b0abbc58 | 1626 | /* An optional expression may be used to cause gdb to terminate with the |
371d5dec | 1627 | value of that expression. */ |
b0abbc58 JJ |
1628 | if (args) |
1629 | { | |
1630 | struct value *val = parse_and_eval (args); | |
1631 | ||
1632 | exit_code = (int) value_as_long (val); | |
1633 | } | |
4b0ad762 AS |
1634 | else if (return_child_result) |
1635 | exit_code = return_child_result_value; | |
b0abbc58 | 1636 | |
365c70b1 JJ |
1637 | qt.args = args; |
1638 | qt.from_tty = from_tty; | |
1639 | ||
b0abbc58 | 1640 | /* We want to handle any quit errors and exit regardless. */ |
2f9d54cf PA |
1641 | |
1642 | /* Get out of tfind mode, and kill or detach all inferiors. */ | |
492d29ea | 1643 | TRY |
2f9d54cf PA |
1644 | { |
1645 | disconnect_tracing (); | |
1646 | iterate_over_inferiors (kill_or_detach, &qt); | |
1647 | } | |
492d29ea PA |
1648 | CATCH (ex, RETURN_MASK_ALL) |
1649 | { | |
1650 | exception_print (gdb_stderr, ex); | |
1651 | } | |
1652 | END_CATCH | |
2f9d54cf PA |
1653 | |
1654 | /* Give all pushed targets a chance to do minimal cleanup, and pop | |
1655 | them all out. */ | |
492d29ea | 1656 | TRY |
2f9d54cf PA |
1657 | { |
1658 | pop_all_targets (); | |
1659 | } | |
492d29ea PA |
1660 | CATCH (ex, RETURN_MASK_ALL) |
1661 | { | |
1662 | exception_print (gdb_stderr, ex); | |
1663 | } | |
1664 | END_CATCH | |
2f9d54cf PA |
1665 | |
1666 | /* Save the history information if it is appropriate to do so. */ | |
492d29ea | 1667 | TRY |
2f9d54cf | 1668 | { |
268a799a PA |
1669 | if (write_history_p && history_filename) |
1670 | { | |
1671 | struct ui *ui; | |
1672 | int save = 0; | |
1673 | ||
1674 | /* History is currently shared between all UIs. If there's | |
1675 | any UI with a terminal, save history. */ | |
1676 | ALL_UIS (ui) | |
1677 | { | |
1678 | if (input_interactive_p (ui)) | |
1679 | { | |
1680 | save = 1; | |
1681 | break; | |
1682 | } | |
1683 | } | |
1684 | ||
1685 | if (save) | |
1686 | gdb_safe_append_history (); | |
1687 | } | |
2f9d54cf | 1688 | } |
492d29ea PA |
1689 | CATCH (ex, RETURN_MASK_ALL) |
1690 | { | |
1691 | exception_print (gdb_stderr, ex); | |
1692 | } | |
1693 | END_CATCH | |
2f9d54cf PA |
1694 | |
1695 | /* Do any final cleanups before exiting. */ | |
492d29ea | 1696 | TRY |
2f9d54cf PA |
1697 | { |
1698 | do_final_cleanups (all_cleanups ()); | |
1699 | } | |
492d29ea PA |
1700 | CATCH (ex, RETURN_MASK_ALL) |
1701 | { | |
1702 | exception_print (gdb_stderr, ex); | |
1703 | } | |
1704 | END_CATCH | |
b0abbc58 | 1705 | |
9e0b60a8 JM |
1706 | exit (exit_code); |
1707 | } | |
1708 | ||
268a799a PA |
1709 | /* The value of the "interactive-mode" setting. */ |
1710 | static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO; | |
9e0b60a8 | 1711 | |
268a799a PA |
1712 | /* Implement the "show interactive-mode" option. */ |
1713 | ||
1714 | static void | |
1715 | show_interactive_mode (struct ui_file *file, int from_tty, | |
1716 | struct cmd_list_element *c, | |
1717 | const char *value) | |
9e0b60a8 | 1718 | { |
268a799a PA |
1719 | if (interactive_mode == AUTO_BOOLEAN_AUTO) |
1720 | fprintf_filtered (file, "Debugger's interactive mode " | |
1721 | "is %s (currently %s).\n", | |
1722 | value, gdb_has_a_terminal () ? "on" : "off"); | |
1723 | else | |
1724 | fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value); | |
1725 | } | |
1726 | ||
1727 | /* Returns whether GDB is running on an interactive terminal. */ | |
f38d3ad1 | 1728 | |
268a799a PA |
1729 | int |
1730 | input_interactive_p (struct ui *ui) | |
1731 | { | |
c63a1f86 JK |
1732 | if (batch_flag) |
1733 | return 0; | |
1734 | ||
268a799a PA |
1735 | if (interactive_mode != AUTO_BOOLEAN_AUTO) |
1736 | return interactive_mode == AUTO_BOOLEAN_TRUE; | |
698ba934 | 1737 | |
268a799a | 1738 | return ui->input_interactive_p; |
9e0b60a8 JM |
1739 | } |
1740 | \f | |
9e0b60a8 | 1741 | static void |
fba45db2 | 1742 | dont_repeat_command (char *ignored, int from_tty) |
9e0b60a8 | 1743 | { |
dc7eb48e PA |
1744 | /* Can't call dont_repeat here because we're not necessarily reading |
1745 | from stdin. */ | |
1746 | *saved_command_line = 0; | |
9e0b60a8 JM |
1747 | } |
1748 | \f | |
1749 | /* Functions to manipulate command line editing control variables. */ | |
1750 | ||
1751 | /* Number of commands to print in each call to show_commands. */ | |
1752 | #define Hist_print 10 | |
d318976c | 1753 | void |
fba45db2 | 1754 | show_commands (char *args, int from_tty) |
9e0b60a8 JM |
1755 | { |
1756 | /* Index for history commands. Relative to history_base. */ | |
1757 | int offset; | |
1758 | ||
1759 | /* Number of the history entry which we are planning to display next. | |
1760 | Relative to history_base. */ | |
1761 | static int num = 0; | |
1762 | ||
9e0b60a8 | 1763 | /* Print out some of the commands from the command history. */ |
9e0b60a8 JM |
1764 | |
1765 | if (args) | |
1766 | { | |
1767 | if (args[0] == '+' && args[1] == '\0') | |
1768 | /* "info editing +" should print from the stored position. */ | |
1769 | ; | |
1770 | else | |
1771 | /* "info editing <exp>" should print around command number <exp>. */ | |
0e828ed1 | 1772 | num = (parse_and_eval_long (args) - history_base) - Hist_print / 2; |
9e0b60a8 JM |
1773 | } |
1774 | /* "show commands" means print the last Hist_print commands. */ | |
1775 | else | |
1776 | { | |
840a9a1f | 1777 | num = history_length - Hist_print; |
9e0b60a8 JM |
1778 | } |
1779 | ||
1780 | if (num < 0) | |
1781 | num = 0; | |
1782 | ||
1783 | /* If there are at least Hist_print commands, we want to display the last | |
1784 | Hist_print rather than, say, the last 6. */ | |
840a9a1f | 1785 | if (history_length - num < Hist_print) |
9e0b60a8 | 1786 | { |
840a9a1f | 1787 | num = history_length - Hist_print; |
9e0b60a8 JM |
1788 | if (num < 0) |
1789 | num = 0; | |
1790 | } | |
1791 | ||
840a9a1f PA |
1792 | for (offset = num; |
1793 | offset < num + Hist_print && offset < history_length; | |
1794 | offset++) | |
9e0b60a8 JM |
1795 | { |
1796 | printf_filtered ("%5d %s\n", history_base + offset, | |
c5aa993b | 1797 | (history_get (history_base + offset))->line); |
9e0b60a8 JM |
1798 | } |
1799 | ||
1800 | /* The next command we want to display is the next one that we haven't | |
1801 | displayed yet. */ | |
1802 | num += Hist_print; | |
1803 | ||
1804 | /* If the user repeats this command with return, it should do what | |
1805 | "show commands +" does. This is unnecessary if arg is null, | |
1806 | because "show commands +" is not useful after "show commands". */ | |
1807 | if (from_tty && args) | |
1808 | { | |
1809 | args[0] = '+'; | |
1810 | args[1] = '\0'; | |
1811 | } | |
1812 | } | |
1813 | ||
ebfd00d2 | 1814 | /* Update the size of our command history file to HISTORY_SIZE. |
840a9a1f | 1815 | |
ebfd00d2 | 1816 | A HISTORY_SIZE of -1 stands for unlimited. */ |
840a9a1f | 1817 | |
ebfd00d2 PP |
1818 | static void |
1819 | set_readline_history_size (int history_size) | |
1820 | { | |
1821 | gdb_assert (history_size >= -1); | |
840a9a1f | 1822 | |
ebfd00d2 | 1823 | if (history_size == -1) |
840a9a1f | 1824 | unstifle_history (); |
883b9c6c | 1825 | else |
ebfd00d2 PP |
1826 | stifle_history (history_size); |
1827 | } | |
1828 | ||
1829 | /* Called by do_setshow_command. */ | |
1830 | static void | |
1831 | set_history_size_command (char *args, int from_tty, struct cmd_list_element *c) | |
1832 | { | |
1833 | set_readline_history_size (history_size_setshow_var); | |
9e0b60a8 JM |
1834 | } |
1835 | ||
d318976c | 1836 | void |
fba45db2 | 1837 | set_history (char *args, int from_tty) |
9e0b60a8 | 1838 | { |
3e43a32a MS |
1839 | printf_unfiltered (_("\"set history\" must be followed " |
1840 | "by the name of a history subcommand.\n")); | |
635c7e8a | 1841 | help_list (sethistlist, "set history ", all_commands, gdb_stdout); |
9e0b60a8 JM |
1842 | } |
1843 | ||
d318976c | 1844 | void |
fba45db2 | 1845 | show_history (char *args, int from_tty) |
9e0b60a8 JM |
1846 | { |
1847 | cmd_show_list (showhistlist, from_tty, ""); | |
1848 | } | |
1849 | ||
371d5dec | 1850 | int info_verbose = 0; /* Default verbose msgs off. */ |
9e0b60a8 JM |
1851 | |
1852 | /* Called by do_setshow_command. An elaborate joke. */ | |
d318976c | 1853 | void |
fba45db2 | 1854 | set_verbose (char *args, int from_tty, struct cmd_list_element *c) |
9e0b60a8 | 1855 | { |
6f937416 | 1856 | const char *cmdname = "verbose"; |
9e0b60a8 JM |
1857 | struct cmd_list_element *showcmd; |
1858 | ||
1859 | showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1); | |
1427fe5e | 1860 | gdb_assert (showcmd != NULL && showcmd != CMD_LIST_AMBIGUOUS); |
9e0b60a8 JM |
1861 | |
1862 | if (info_verbose) | |
1863 | { | |
1864 | c->doc = "Set verbose printing of informational messages."; | |
1865 | showcmd->doc = "Show verbose printing of informational messages."; | |
1866 | } | |
1867 | else | |
1868 | { | |
1869 | c->doc = "Set verbosity."; | |
1870 | showcmd->doc = "Show verbosity."; | |
1871 | } | |
1872 | } | |
1873 | ||
9e0b60a8 | 1874 | /* Init the history buffer. Note that we are called after the init file(s) |
371d5dec MS |
1875 | have been read so that the user can change the history file via his |
1876 | .gdbinit file (for instance). The GDBHISTFILE environment variable | |
1877 | overrides all of this. */ | |
9e0b60a8 JM |
1878 | |
1879 | void | |
fba45db2 | 1880 | init_history (void) |
9e0b60a8 JM |
1881 | { |
1882 | char *tmpenv; | |
1883 | ||
b58c513b | 1884 | tmpenv = getenv ("GDBHISTSIZE"); |
9e0b60a8 | 1885 | if (tmpenv) |
840a9a1f | 1886 | { |
bc460514 | 1887 | long var; |
0fc26caf | 1888 | int saved_errno; |
bc460514 PP |
1889 | char *endptr; |
1890 | ||
1891 | tmpenv = skip_spaces (tmpenv); | |
0fc26caf | 1892 | errno = 0; |
bc460514 | 1893 | var = strtol (tmpenv, &endptr, 10); |
0fc26caf | 1894 | saved_errno = errno; |
bc460514 PP |
1895 | endptr = skip_spaces (endptr); |
1896 | ||
1897 | /* If GDBHISTSIZE is non-numeric then ignore it. If GDBHISTSIZE is the | |
1898 | empty string, a negative number or a huge positive number (larger than | |
1899 | INT_MAX) then set the history size to unlimited. Otherwise set our | |
1900 | history size to the number we have read. This behavior is consistent | |
1901 | with how bash handles HISTSIZE. */ | |
1902 | if (*endptr != '\0') | |
1903 | ; | |
1904 | else if (*tmpenv == '\0' | |
1905 | || var < 0 | |
0fc26caf PP |
1906 | || var > INT_MAX |
1907 | /* On targets where INT_MAX == LONG_MAX, we have to look at | |
1908 | errno after calling strtol to distinguish between a value that | |
1909 | is exactly INT_MAX and an overflowing value that was clamped | |
1910 | to INT_MAX. */ | |
1911 | || (var == INT_MAX && saved_errno == ERANGE)) | |
bc460514 PP |
1912 | history_size_setshow_var = -1; |
1913 | else | |
1914 | history_size_setshow_var = var; | |
840a9a1f | 1915 | } |
bc460514 PP |
1916 | |
1917 | /* If neither the init file nor GDBHISTSIZE has set a size yet, pick the | |
1918 | default. */ | |
1919 | if (history_size_setshow_var == -2) | |
840a9a1f | 1920 | history_size_setshow_var = 256; |
9e0b60a8 | 1921 | |
ebfd00d2 | 1922 | set_readline_history_size (history_size_setshow_var); |
9e0b60a8 JM |
1923 | |
1924 | tmpenv = getenv ("GDBHISTFILE"); | |
1925 | if (tmpenv) | |
1b36a34b | 1926 | history_filename = xstrdup (tmpenv); |
c5aa993b JM |
1927 | else if (!history_filename) |
1928 | { | |
1929 | /* We include the current directory so that if the user changes | |
1930 | directories the file written will be the same as the one | |
1931 | that was read. */ | |
a0b3c4fd | 1932 | #ifdef __MSDOS__ |
eb2f494a | 1933 | /* No leading dots in file names are allowed on MSDOS. */ |
1754f103 MK |
1934 | history_filename = concat (current_directory, "/_gdb_history", |
1935 | (char *)NULL); | |
a0b3c4fd | 1936 | #else |
1754f103 MK |
1937 | history_filename = concat (current_directory, "/.gdb_history", |
1938 | (char *)NULL); | |
a0b3c4fd | 1939 | #endif |
c5aa993b | 1940 | } |
9e0b60a8 JM |
1941 | read_history (history_filename); |
1942 | } | |
1943 | ||
920d2a44 | 1944 | static void |
ab821bc6 PA |
1945 | show_prompt (struct ui_file *file, int from_tty, |
1946 | struct cmd_list_element *c, const char *value) | |
920d2a44 AC |
1947 | { |
1948 | fprintf_filtered (file, _("Gdb's prompt is \"%s\".\n"), value); | |
1949 | } | |
1950 | ||
3c216924 PA |
1951 | /* "set editing" command. */ |
1952 | ||
1953 | static void | |
1954 | set_editing (char *args, int from_tty, struct cmd_list_element *c) | |
1955 | { | |
1956 | change_line_handler (set_editing_cmd_var); | |
1957 | /* Update the control variable so that MI's =cmd-param-changed event | |
1958 | shows the correct value. */ | |
1959 | set_editing_cmd_var = current_ui->command_editing; | |
1960 | } | |
1961 | ||
920d2a44 | 1962 | static void |
3c216924 PA |
1963 | show_editing (struct ui_file *file, int from_tty, |
1964 | struct cmd_list_element *c, const char *value) | |
920d2a44 | 1965 | { |
3e43a32a MS |
1966 | fprintf_filtered (file, _("Editing of command lines as " |
1967 | "they are typed is %s.\n"), | |
3c216924 | 1968 | current_ui->command_editing ? _("on") : _("off")); |
920d2a44 AC |
1969 | } |
1970 | ||
1971 | static void | |
1972 | show_annotation_level (struct ui_file *file, int from_tty, | |
1973 | struct cmd_list_element *c, const char *value) | |
1974 | { | |
1975 | fprintf_filtered (file, _("Annotation_level is %s.\n"), value); | |
1976 | } | |
1977 | ||
1978 | static void | |
1979 | show_exec_done_display_p (struct ui_file *file, int from_tty, | |
1980 | struct cmd_list_element *c, const char *value) | |
1981 | { | |
3e43a32a MS |
1982 | fprintf_filtered (file, _("Notification of completion for " |
1983 | "asynchronous execution commands is %s.\n"), | |
920d2a44 AC |
1984 | value); |
1985 | } | |
6dea1fbd | 1986 | |
8d551b02 DE |
1987 | /* New values of the "data-directory" parameter are staged here. */ |
1988 | static char *staged_gdb_datadir; | |
1989 | ||
6dea1fbd JK |
1990 | /* "set" command for the gdb_datadir configuration variable. */ |
1991 | ||
1992 | static void | |
1993 | set_gdb_datadir (char *args, int from_tty, struct cmd_list_element *c) | |
1994 | { | |
8d551b02 | 1995 | set_gdb_data_directory (staged_gdb_datadir); |
6dea1fbd JK |
1996 | observer_notify_gdb_datadir_changed (); |
1997 | } | |
1998 | ||
8d551b02 DE |
1999 | /* "show" command for the gdb_datadir configuration variable. */ |
2000 | ||
2001 | static void | |
2002 | show_gdb_datadir (struct ui_file *file, int from_tty, | |
2003 | struct cmd_list_element *c, const char *value) | |
2004 | { | |
2005 | fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"), | |
2006 | gdb_datadir); | |
2007 | } | |
2008 | ||
97c85fc6 MB |
2009 | static void |
2010 | set_history_filename (char *args, int from_tty, struct cmd_list_element *c) | |
2011 | { | |
2012 | /* We include the current directory so that if the user changes | |
2013 | directories the file written will be the same as the one | |
2014 | that was read. */ | |
2015 | if (!IS_ABSOLUTE_PATH (history_filename)) | |
2016 | history_filename = reconcat (history_filename, current_directory, "/", | |
2017 | history_filename, (char *) NULL); | |
2018 | } | |
2019 | ||
9e0b60a8 | 2020 | static void |
fba45db2 | 2021 | init_main (void) |
9e0b60a8 | 2022 | { |
60eb5395 PA |
2023 | struct cmd_list_element *c; |
2024 | ||
ab821bc6 PA |
2025 | /* Initialize the prompt to a simple "(gdb) " prompt or to whatever |
2026 | the DEFAULT_PROMPT is. */ | |
2027 | set_prompt (DEFAULT_PROMPT); | |
2028 | ||
9e0b60a8 JM |
2029 | /* Set the important stuff up for command editing. */ |
2030 | command_editing_p = 1; | |
9e0b60a8 | 2031 | history_expansion_p = 0; |
452a569e | 2032 | write_history_p = 0; |
9e0b60a8 JM |
2033 | |
2034 | /* Setup important stuff for command line editing. */ | |
67c296a2 | 2035 | rl_completion_word_break_hook = gdb_completion_word_break_characters; |
38017ce8 | 2036 | rl_completion_entry_function = readline_line_completion_function; |
51065942 | 2037 | rl_completer_word_break_characters = default_word_break_characters (); |
d318976c | 2038 | rl_completer_quote_characters = get_gdb_completer_quote_characters (); |
82083d6d | 2039 | rl_completion_display_matches_hook = cli_display_match_list; |
9e0b60a8 | 2040 | rl_readline_name = "gdb"; |
7cb3ec5e | 2041 | rl_terminal_name = getenv ("TERM"); |
9e0b60a8 | 2042 | |
467d8519 TT |
2043 | /* The name for this defun comes from Bash, where it originated. |
2044 | 15 is Control-o, the same binding this function has in Bash. */ | |
2045 | rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15); | |
2046 | ||
4d28ad1e | 2047 | add_setshow_string_cmd ("prompt", class_support, |
ab821bc6 | 2048 | &top_prompt, |
3e43a32a MS |
2049 | _("Set gdb's prompt"), |
2050 | _("Show gdb's prompt"), | |
ab821bc6 PA |
2051 | NULL, NULL, |
2052 | show_prompt, | |
4d28ad1e | 2053 | &setlist, &showlist); |
9e0b60a8 | 2054 | |
1bedd215 | 2055 | add_com ("dont-repeat", class_support, dont_repeat_command, _("\ |
3e43a32a MS |
2056 | Don't repeat this command.\nPrimarily \ |
2057 | used inside of user-defined commands that should not be repeated when\n\ | |
1bedd215 | 2058 | hitting return.")); |
9e0b60a8 | 2059 | |
5bf193a2 | 2060 | add_setshow_boolean_cmd ("editing", class_support, |
3c216924 | 2061 | &set_editing_cmd_var, _("\ |
5bf193a2 AC |
2062 | Set editing of command lines as they are typed."), _("\ |
2063 | Show editing of command lines as they are typed."), _("\ | |
9e0b60a8 JM |
2064 | Use \"on\" to enable the editing, and \"off\" to disable it.\n\ |
2065 | Without an argument, command line editing is enabled. To edit, use\n\ | |
5bf193a2 | 2066 | EMACS-like or VI-like commands like control-P or ESC."), |
3c216924 PA |
2067 | set_editing, |
2068 | show_editing, | |
5bf193a2 AC |
2069 | &setlist, &showlist); |
2070 | ||
2071 | add_setshow_boolean_cmd ("save", no_class, &write_history_p, _("\ | |
2072 | Set saving of the history record on exit."), _("\ | |
2073 | Show saving of the history record on exit."), _("\ | |
9e0b60a8 | 2074 | Use \"on\" to enable the saving, and \"off\" to disable it.\n\ |
5bf193a2 AC |
2075 | Without an argument, saving is enabled."), |
2076 | NULL, | |
920d2a44 | 2077 | show_write_history_p, |
5bf193a2 | 2078 | &sethistlist, &showhistlist); |
9e0b60a8 | 2079 | |
ebfd00d2 PP |
2080 | add_setshow_zuinteger_unlimited_cmd ("size", no_class, |
2081 | &history_size_setshow_var, _("\ | |
4d28ad1e AC |
2082 | Set the size of the command history,"), _("\ |
2083 | Show the size of the command history,"), _("\ | |
f81d1120 PA |
2084 | ie. the number of previous commands to keep a record of.\n\ |
2085 | If set to \"unlimited\", the number of commands kept in the history\n\ | |
2086 | list is unlimited. This defaults to the value of the environment\n\ | |
b58c513b | 2087 | variable \"GDBHISTSIZE\", or to 256 if this variable is not set."), |
883b9c6c YQ |
2088 | set_history_size_command, |
2089 | show_history_size, | |
2090 | &sethistlist, &showhistlist); | |
4d28ad1e | 2091 | |
fc637f04 PP |
2092 | add_setshow_zuinteger_unlimited_cmd ("remove-duplicates", no_class, |
2093 | &history_remove_duplicates, _("\ | |
2094 | Set how far back in history to look for and remove duplicate entries."), _("\ | |
2095 | Show how far back in history to look for and remove duplicate entries."), _("\ | |
2096 | If set to a nonzero value N, GDB will look back at the last N history entries\n\ | |
2097 | and remove the first history entry that is a duplicate of the most recent\n\ | |
2098 | entry, each time a new history entry is added.\n\ | |
2099 | If set to \"unlimited\", this lookbehind is unbounded.\n\ | |
2100 | Only history entries added during this session are considered for removal.\n\ | |
2101 | If set to 0, removal of duplicate history entries is disabled.\n\ | |
2102 | By default this option is set to 0."), | |
2103 | NULL, | |
2104 | show_history_remove_duplicates, | |
2105 | &sethistlist, &showhistlist); | |
2106 | ||
4d28ad1e AC |
2107 | add_setshow_filename_cmd ("filename", no_class, &history_filename, _("\ |
2108 | Set the filename in which to record the command history"), _("\ | |
2109 | Show the filename in which to record the command history"), _("\ | |
2110 | (the list of previous commands of which a record is kept)."), | |
97c85fc6 | 2111 | set_history_filename, |
920d2a44 | 2112 | show_history_filename, |
4d28ad1e | 2113 | &sethistlist, &showhistlist); |
9e0b60a8 | 2114 | |
e360902b | 2115 | add_setshow_boolean_cmd ("confirm", class_support, &confirm, _("\ |
5bf193a2 AC |
2116 | Set whether to confirm potentially dangerous operations."), _("\ |
2117 | Show whether to confirm potentially dangerous operations."), NULL, | |
2118 | NULL, | |
e360902b | 2119 | show_confirm, |
5bf193a2 | 2120 | &setlist, &showlist); |
9e0b60a8 | 2121 | |
85c07804 AC |
2122 | add_setshow_zinteger_cmd ("annotate", class_obscure, &annotation_level, _("\ |
2123 | Set annotation_level."), _("\ | |
2124 | Show annotation_level."), _("\ | |
9e0b60a8 | 2125 | 0 == normal; 1 == fullname (for use when running under emacs)\n\ |
85c07804 | 2126 | 2 == output annotated suitably for use by programs that control GDB."), |
ab821bc6 | 2127 | NULL, |
920d2a44 | 2128 | show_annotation_level, |
85c07804 | 2129 | &setlist, &showlist); |
362646f5 | 2130 | |
5bf193a2 AC |
2131 | add_setshow_boolean_cmd ("exec-done-display", class_support, |
2132 | &exec_done_display_p, _("\ | |
2133 | Set notification of completion for asynchronous execution commands."), _("\ | |
2134 | Show notification of completion for asynchronous execution commands."), _("\ | |
2135 | Use \"on\" to enable the notification, and \"off\" to disable it."), | |
2136 | NULL, | |
920d2a44 | 2137 | show_exec_done_display_p, |
5bf193a2 | 2138 | &setlist, &showlist); |
b14b1491 TT |
2139 | |
2140 | add_setshow_filename_cmd ("data-directory", class_maintenance, | |
8d551b02 | 2141 | &staged_gdb_datadir, _("Set GDB's data directory."), |
b14b1491 TT |
2142 | _("Show GDB's data directory."), |
2143 | _("\ | |
2144 | When set, GDB uses the specified path to search for data files."), | |
8d551b02 | 2145 | set_gdb_datadir, show_gdb_datadir, |
b14b1491 TT |
2146 | &setlist, |
2147 | &showlist); | |
268a799a PA |
2148 | |
2149 | add_setshow_auto_boolean_cmd ("interactive-mode", class_support, | |
2150 | &interactive_mode, _("\ | |
2151 | Set whether GDB's standard input is a terminal."), _("\ | |
2152 | Show whether GDB's standard input is a terminal."), _("\ | |
2153 | If on, GDB assumes that standard input is a terminal. In practice, it\n\ | |
2154 | means that GDB should wait for the user to answer queries associated to\n\ | |
2155 | commands entered at the command prompt. If off, GDB assumes that standard\n\ | |
2156 | input is not a terminal, and uses the default answer to all queries.\n\ | |
2157 | If auto (the default), determine which mode to use based on the standard\n\ | |
2158 | input settings."), | |
2159 | NULL, | |
2160 | show_interactive_mode, | |
2161 | &setlist, &showlist); | |
60eb5395 PA |
2162 | |
2163 | c = add_cmd ("new-ui", class_support, new_ui_command, _("\ | |
2164 | Create a new UI. It takes two arguments:\n\ | |
2165 | The first argument is the name of the interpreter to run.\n\ | |
2166 | The second argument is the terminal the UI runs on.\n"), &cmdlist); | |
2167 | set_cmd_completer (c, interpreter_completer); | |
9e0b60a8 | 2168 | } |
64cdedad EZ |
2169 | |
2170 | void | |
2171 | gdb_init (char *argv0) | |
2172 | { | |
2173 | if (pre_init_ui_hook) | |
2174 | pre_init_ui_hook (); | |
2175 | ||
371d5dec | 2176 | /* Run the init function of each source file. */ |
64cdedad | 2177 | |
64cdedad EZ |
2178 | #ifdef __MSDOS__ |
2179 | /* Make sure we return to the original directory upon exit, come | |
2180 | what may, since the OS doesn't do that for us. */ | |
2181 | make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory)); | |
2182 | #endif | |
2183 | ||
371d5dec MS |
2184 | init_cmd_lists (); /* This needs to be done first. */ |
2185 | initialize_targets (); /* Setup target_terminal macros for utils.c. */ | |
2186 | initialize_utils (); /* Make errors and warnings possible. */ | |
9dea9163 | 2187 | |
24b73f8e PP |
2188 | init_page_info (); |
2189 | ||
9dea9163 | 2190 | /* Here is where we call all the _initialize_foo routines. */ |
64cdedad | 2191 | initialize_all_files (); |
9dea9163 | 2192 | |
6c95b8df PA |
2193 | /* This creates the current_program_space. Do this after all the |
2194 | _initialize_foo routines have had a chance to install their | |
2195 | per-sspace data keys. Also do this before | |
2196 | initialize_current_architecture is called, because it accesses | |
2197 | exec_bfd of the current program space. */ | |
2198 | initialize_progspace (); | |
2199 | initialize_inferiors (); | |
64cdedad EZ |
2200 | initialize_current_architecture (); |
2201 | init_cli_cmds(); | |
371d5dec | 2202 | init_main (); /* But that omits this file! Do it now. */ |
64cdedad | 2203 | |
0ea3f30e DJ |
2204 | initialize_stdin_serial (); |
2205 | ||
6a06d660 PP |
2206 | /* Take a snapshot of our tty state before readline/ncurses have had a chance |
2207 | to alter it. */ | |
2208 | set_initial_gdb_ttystate (); | |
2209 | ||
362646f5 | 2210 | async_init_signals (); |
64cdedad | 2211 | |
371d5dec MS |
2212 | /* We need a default language for parsing expressions, so simple |
2213 | things like "set width 0" won't fail if no language is explicitly | |
2214 | set in a config file or implicitly set by reading an executable | |
2215 | during startup. */ | |
64cdedad | 2216 | set_language (language_c); |
371d5dec | 2217 | expected_language = current_language; /* Don't warn about the change. */ |
64cdedad | 2218 | |
6dddc817 | 2219 | /* Python initialization, for example, can require various commands to be |
371d5dec MS |
2220 | installed. For example "info pretty-printer" needs the "info" |
2221 | prefix to be installed. Keep things simple and just do final | |
6dddc817 DE |
2222 | script initialization here. */ |
2223 | finish_ext_lang_initialization (); | |
64cdedad | 2224 | } |