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1 | /* GDB CLI commands. | |
2 | ||
3 | Copyright (C) 2000-2017 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
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 | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "arch-utils.h" | |
22 | #include "readline/readline.h" | |
23 | #include "readline/tilde.h" | |
24 | #include "completer.h" | |
25 | #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */ | |
26 | #include "gdb_wait.h" /* For shell escape implementation. */ | |
27 | #include "gdb_regex.h" /* Used by apropos_command. */ | |
28 | #include "gdb_vfork.h" | |
29 | #include "linespec.h" | |
30 | #include "expression.h" | |
31 | #include "frame.h" | |
32 | #include "value.h" | |
33 | #include "language.h" | |
34 | #include "filenames.h" /* For DOSish file names. */ | |
35 | #include "objfiles.h" | |
36 | #include "source.h" | |
37 | #include "disasm.h" | |
38 | #include "tracepoint.h" | |
39 | #include "filestuff.h" | |
40 | #include "location.h" | |
41 | ||
42 | #include "ui-out.h" | |
43 | ||
44 | #include "top.h" | |
45 | #include "cli/cli-decode.h" | |
46 | #include "cli/cli-script.h" | |
47 | #include "cli/cli-setshow.h" | |
48 | #include "cli/cli-cmds.h" | |
49 | #include "cli/cli-utils.h" | |
50 | ||
51 | #include "extension.h" | |
52 | ||
53 | #ifdef TUI | |
54 | #include "tui/tui.h" /* For tui_active et.al. */ | |
55 | #endif | |
56 | ||
57 | #include <fcntl.h> | |
58 | #include <algorithm> | |
59 | #include <string> | |
60 | ||
61 | /* Prototypes for local command functions */ | |
62 | ||
63 | static void complete_command (char *, int); | |
64 | ||
65 | static void echo_command (char *, int); | |
66 | ||
67 | static void pwd_command (char *, int); | |
68 | ||
69 | static void show_version (char *, int); | |
70 | ||
71 | static void help_command (char *, int); | |
72 | ||
73 | static void show_command (char *, int); | |
74 | ||
75 | static void info_command (char *, int); | |
76 | ||
77 | static void show_debug (char *, int); | |
78 | ||
79 | static void set_debug (char *, int); | |
80 | ||
81 | static void show_user (char *, int); | |
82 | ||
83 | static void make_command (char *, int); | |
84 | ||
85 | static void shell_escape (const char *, int); | |
86 | ||
87 | static void edit_command (char *, int); | |
88 | ||
89 | static void list_command (char *, int); | |
90 | ||
91 | /* Prototypes for local utility functions */ | |
92 | ||
93 | static void ambiguous_line_spec (struct symtabs_and_lines *); | |
94 | ||
95 | static void filter_sals (struct symtabs_and_lines *); | |
96 | ||
97 | \f | |
98 | /* Limit the call depth of user-defined commands */ | |
99 | unsigned int max_user_call_depth; | |
100 | ||
101 | /* Define all cmd_list_elements. */ | |
102 | ||
103 | /* Chain containing all defined commands. */ | |
104 | ||
105 | struct cmd_list_element *cmdlist; | |
106 | ||
107 | /* Chain containing all defined info subcommands. */ | |
108 | ||
109 | struct cmd_list_element *infolist; | |
110 | ||
111 | /* Chain containing all defined enable subcommands. */ | |
112 | ||
113 | struct cmd_list_element *enablelist; | |
114 | ||
115 | /* Chain containing all defined disable subcommands. */ | |
116 | ||
117 | struct cmd_list_element *disablelist; | |
118 | ||
119 | /* Chain containing all defined stop subcommands. */ | |
120 | ||
121 | struct cmd_list_element *stoplist; | |
122 | ||
123 | /* Chain containing all defined delete subcommands. */ | |
124 | ||
125 | struct cmd_list_element *deletelist; | |
126 | ||
127 | /* Chain containing all defined detach subcommands. */ | |
128 | ||
129 | struct cmd_list_element *detachlist; | |
130 | ||
131 | /* Chain containing all defined kill subcommands. */ | |
132 | ||
133 | struct cmd_list_element *killlist; | |
134 | ||
135 | /* Chain containing all defined set subcommands */ | |
136 | ||
137 | struct cmd_list_element *setlist; | |
138 | ||
139 | /* Chain containing all defined unset subcommands */ | |
140 | ||
141 | struct cmd_list_element *unsetlist; | |
142 | ||
143 | /* Chain containing all defined show subcommands. */ | |
144 | ||
145 | struct cmd_list_element *showlist; | |
146 | ||
147 | /* Chain containing all defined \"set history\". */ | |
148 | ||
149 | struct cmd_list_element *sethistlist; | |
150 | ||
151 | /* Chain containing all defined \"show history\". */ | |
152 | ||
153 | struct cmd_list_element *showhistlist; | |
154 | ||
155 | /* Chain containing all defined \"unset history\". */ | |
156 | ||
157 | struct cmd_list_element *unsethistlist; | |
158 | ||
159 | /* Chain containing all defined maintenance subcommands. */ | |
160 | ||
161 | struct cmd_list_element *maintenancelist; | |
162 | ||
163 | /* Chain containing all defined "maintenance info" subcommands. */ | |
164 | ||
165 | struct cmd_list_element *maintenanceinfolist; | |
166 | ||
167 | /* Chain containing all defined "maintenance print" subcommands. */ | |
168 | ||
169 | struct cmd_list_element *maintenanceprintlist; | |
170 | ||
171 | struct cmd_list_element *setprintlist; | |
172 | ||
173 | struct cmd_list_element *showprintlist; | |
174 | ||
175 | struct cmd_list_element *setdebuglist; | |
176 | ||
177 | struct cmd_list_element *showdebuglist; | |
178 | ||
179 | struct cmd_list_element *setchecklist; | |
180 | ||
181 | struct cmd_list_element *showchecklist; | |
182 | ||
183 | /* Command tracing state. */ | |
184 | ||
185 | int source_verbose = 0; | |
186 | int trace_commands = 0; | |
187 | \f | |
188 | /* 'script-extension' option support. */ | |
189 | ||
190 | static const char script_ext_off[] = "off"; | |
191 | static const char script_ext_soft[] = "soft"; | |
192 | static const char script_ext_strict[] = "strict"; | |
193 | ||
194 | static const char *const script_ext_enums[] = { | |
195 | script_ext_off, | |
196 | script_ext_soft, | |
197 | script_ext_strict, | |
198 | NULL | |
199 | }; | |
200 | ||
201 | static const char *script_ext_mode = script_ext_soft; | |
202 | \f | |
203 | /* Utility used everywhere when at least one argument is needed and | |
204 | none is supplied. */ | |
205 | ||
206 | void | |
207 | error_no_arg (const char *why) | |
208 | { | |
209 | error (_("Argument required (%s)."), why); | |
210 | } | |
211 | ||
212 | /* The "info" command is defined as a prefix, with allow_unknown = 0. | |
213 | Therefore, its own definition is called only for "info" with no | |
214 | args. */ | |
215 | ||
216 | static void | |
217 | info_command (char *arg, int from_tty) | |
218 | { | |
219 | printf_unfiltered (_("\"info\" must be followed by " | |
220 | "the name of an info command.\n")); | |
221 | help_list (infolist, "info ", all_commands, gdb_stdout); | |
222 | } | |
223 | ||
224 | /* The "show" command with no arguments shows all the settings. */ | |
225 | ||
226 | static void | |
227 | show_command (char *arg, int from_tty) | |
228 | { | |
229 | cmd_show_list (showlist, from_tty, ""); | |
230 | } | |
231 | \f | |
232 | /* Provide documentation on command or list given by COMMAND. FROM_TTY | |
233 | is ignored. */ | |
234 | ||
235 | static void | |
236 | help_command (char *command, int from_tty) | |
237 | { | |
238 | help_cmd (command, gdb_stdout); | |
239 | } | |
240 | \f | |
241 | ||
242 | /* Note: The "complete" command is used by Emacs to implement completion. | |
243 | [Is that why this function writes output with *_unfiltered?] */ | |
244 | ||
245 | static void | |
246 | complete_command (char *arg_entry, int from_tty) | |
247 | { | |
248 | const char *arg = arg_entry; | |
249 | ||
250 | dont_repeat (); | |
251 | ||
252 | if (max_completions == 0) | |
253 | { | |
254 | /* Only print this for non-mi frontends. An MI frontend may not | |
255 | be able to handle this. */ | |
256 | if (!current_uiout->is_mi_like_p ()) | |
257 | { | |
258 | printf_unfiltered (_("max-completions is zero," | |
259 | " completion is disabled.\n")); | |
260 | } | |
261 | return; | |
262 | } | |
263 | ||
264 | if (arg == NULL) | |
265 | arg = ""; | |
266 | ||
267 | completion_tracker tracker_handle_brkchars; | |
268 | completion_tracker tracker_handle_completions; | |
269 | ||
270 | int quote_char = '\0'; | |
271 | const char *word; | |
272 | ||
273 | TRY | |
274 | { | |
275 | word = completion_find_completion_word (tracker_handle_brkchars, | |
276 | arg, "e_char); | |
277 | ||
278 | /* Completers must be called twice. */ | |
279 | complete_line (tracker_handle_completions, word, arg, strlen (arg)); | |
280 | } | |
281 | CATCH (ex, RETURN_MASK_ALL) | |
282 | { | |
283 | return; | |
284 | } | |
285 | ||
286 | std::string arg_prefix (arg, word - arg); | |
287 | ||
288 | completion_result result | |
289 | = (tracker_handle_completions.build_completion_result | |
290 | (word, word - arg, strlen (arg))); | |
291 | ||
292 | if (result.number_matches != 0) | |
293 | { | |
294 | if (result.number_matches == 1) | |
295 | printf_unfiltered ("%s%s\n", arg_prefix.c_str (), result.match_list[0]); | |
296 | else | |
297 | { | |
298 | result.sort_match_list (); | |
299 | ||
300 | for (size_t i = 0; i < result.number_matches; i++) | |
301 | { | |
302 | printf_unfiltered ("%s%s", | |
303 | arg_prefix.c_str (), | |
304 | result.match_list[i + 1]); | |
305 | if (quote_char) | |
306 | printf_unfiltered ("%c", quote_char); | |
307 | printf_unfiltered ("\n"); | |
308 | } | |
309 | } | |
310 | ||
311 | if (result.number_matches == max_completions) | |
312 | { | |
313 | /* ARG_PREFIX and WORD are included in the output so that emacs | |
314 | will include the message in the output. */ | |
315 | printf_unfiltered (_("%s%s %s\n"), | |
316 | arg_prefix.c_str (), word, | |
317 | get_max_completions_reached_message ()); | |
318 | } | |
319 | } | |
320 | } | |
321 | ||
322 | int | |
323 | is_complete_command (struct cmd_list_element *c) | |
324 | { | |
325 | return cmd_cfunc_eq (c, complete_command); | |
326 | } | |
327 | ||
328 | static void | |
329 | show_version (char *args, int from_tty) | |
330 | { | |
331 | print_gdb_version (gdb_stdout); | |
332 | printf_filtered ("\n"); | |
333 | } | |
334 | ||
335 | static void | |
336 | show_configuration (char *args, int from_tty) | |
337 | { | |
338 | print_gdb_configuration (gdb_stdout); | |
339 | } | |
340 | ||
341 | /* Handle the quit command. */ | |
342 | ||
343 | void | |
344 | quit_command (char *args, int from_tty) | |
345 | { | |
346 | int exit_code = 0; | |
347 | ||
348 | /* An optional expression may be used to cause gdb to terminate with | |
349 | the value of that expression. */ | |
350 | if (args) | |
351 | { | |
352 | struct value *val = parse_and_eval (args); | |
353 | ||
354 | exit_code = (int) value_as_long (val); | |
355 | } | |
356 | ||
357 | if (!quit_confirm ()) | |
358 | error (_("Not confirmed.")); | |
359 | ||
360 | query_if_trace_running (from_tty); | |
361 | ||
362 | quit_force (args ? &exit_code : NULL, from_tty); | |
363 | } | |
364 | ||
365 | static void | |
366 | pwd_command (char *args, int from_tty) | |
367 | { | |
368 | if (args) | |
369 | error (_("The \"pwd\" command does not take an argument: %s"), args); | |
370 | if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf))) | |
371 | error (_("Error finding name of working directory: %s"), | |
372 | safe_strerror (errno)); | |
373 | ||
374 | if (strcmp (gdb_dirbuf, current_directory) != 0) | |
375 | printf_unfiltered (_("Working directory %s\n (canonically %s).\n"), | |
376 | current_directory, gdb_dirbuf); | |
377 | else | |
378 | printf_unfiltered (_("Working directory %s.\n"), current_directory); | |
379 | } | |
380 | ||
381 | void | |
382 | cd_command (char *dir, int from_tty) | |
383 | { | |
384 | int len; | |
385 | /* Found something other than leading repetitions of "/..". */ | |
386 | int found_real_path; | |
387 | char *p; | |
388 | struct cleanup *cleanup; | |
389 | ||
390 | /* If the new directory is absolute, repeat is a no-op; if relative, | |
391 | repeat might be useful but is more likely to be a mistake. */ | |
392 | dont_repeat (); | |
393 | ||
394 | dir = tilde_expand (dir != NULL ? dir : "~"); | |
395 | cleanup = make_cleanup (xfree, dir); | |
396 | ||
397 | if (chdir (dir) < 0) | |
398 | perror_with_name (dir); | |
399 | ||
400 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
401 | /* There's too much mess with DOSish names like "d:", "d:.", | |
402 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, | |
403 | simply get the canonicalized name of the current directory. */ | |
404 | dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
405 | #endif | |
406 | ||
407 | len = strlen (dir); | |
408 | if (IS_DIR_SEPARATOR (dir[len - 1])) | |
409 | { | |
410 | /* Remove the trailing slash unless this is a root directory | |
411 | (including a drive letter on non-Unix systems). */ | |
412 | if (!(len == 1) /* "/" */ | |
413 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
414 | && !(len == 3 && dir[1] == ':') /* "d:/" */ | |
415 | #endif | |
416 | ) | |
417 | len--; | |
418 | } | |
419 | ||
420 | dir = savestring (dir, len); | |
421 | if (IS_ABSOLUTE_PATH (dir)) | |
422 | current_directory = dir; | |
423 | else | |
424 | { | |
425 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) | |
426 | current_directory = concat (current_directory, dir, (char *)NULL); | |
427 | else | |
428 | current_directory = concat (current_directory, SLASH_STRING, | |
429 | dir, (char *)NULL); | |
430 | xfree (dir); | |
431 | } | |
432 | ||
433 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ | |
434 | ||
435 | found_real_path = 0; | |
436 | for (p = current_directory; *p;) | |
437 | { | |
438 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' | |
439 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) | |
440 | memmove (p, p + 2, strlen (p + 2) + 1); | |
441 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' | |
442 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) | |
443 | { | |
444 | if (found_real_path) | |
445 | { | |
446 | /* Search backwards for the directory just before the "/.." | |
447 | and obliterate it and the "/..". */ | |
448 | char *q = p; | |
449 | ||
450 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) | |
451 | --q; | |
452 | ||
453 | if (q == current_directory) | |
454 | /* current_directory is | |
455 | a relative pathname ("can't happen"--leave it alone). */ | |
456 | ++p; | |
457 | else | |
458 | { | |
459 | memmove (q - 1, p + 3, strlen (p + 3) + 1); | |
460 | p = q - 1; | |
461 | } | |
462 | } | |
463 | else | |
464 | /* We are dealing with leading repetitions of "/..", for | |
465 | example "/../..", which is the Mach super-root. */ | |
466 | p += 3; | |
467 | } | |
468 | else | |
469 | { | |
470 | found_real_path = 1; | |
471 | ++p; | |
472 | } | |
473 | } | |
474 | ||
475 | forget_cached_source_info (); | |
476 | ||
477 | if (from_tty) | |
478 | pwd_command ((char *) 0, 1); | |
479 | ||
480 | do_cleanups (cleanup); | |
481 | } | |
482 | \f | |
483 | /* Show the current value of the 'script-extension' option. */ | |
484 | ||
485 | static void | |
486 | show_script_ext_mode (struct ui_file *file, int from_tty, | |
487 | struct cmd_list_element *c, const char *value) | |
488 | { | |
489 | fprintf_filtered (file, | |
490 | _("Script filename extension recognition is \"%s\".\n"), | |
491 | value); | |
492 | } | |
493 | ||
494 | /* Try to open SCRIPT_FILE. | |
495 | If successful, the full path name is stored in *FULL_PATHP, | |
496 | the stream is stored in *STREAMP, and return 1. | |
497 | The caller is responsible for freeing *FULL_PATHP. | |
498 | If not successful, return 0; errno is set for the last file | |
499 | we tried to open. | |
500 | ||
501 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
502 | search for it in the source search path. */ | |
503 | ||
504 | int | |
505 | find_and_open_script (const char *script_file, int search_path, | |
506 | FILE **streamp, char **full_pathp) | |
507 | { | |
508 | char *file; | |
509 | int fd; | |
510 | struct cleanup *old_cleanups; | |
511 | int search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH; | |
512 | ||
513 | file = tilde_expand (script_file); | |
514 | old_cleanups = make_cleanup (xfree, file); | |
515 | ||
516 | if (search_path) | |
517 | search_flags |= OPF_SEARCH_IN_PATH; | |
518 | ||
519 | /* Search for and open 'file' on the search path used for source | |
520 | files. Put the full location in *FULL_PATHP. */ | |
521 | fd = openp (source_path, search_flags, | |
522 | file, O_RDONLY, full_pathp); | |
523 | ||
524 | if (fd == -1) | |
525 | { | |
526 | int save_errno = errno; | |
527 | do_cleanups (old_cleanups); | |
528 | errno = save_errno; | |
529 | return 0; | |
530 | } | |
531 | ||
532 | do_cleanups (old_cleanups); | |
533 | ||
534 | *streamp = fdopen (fd, FOPEN_RT); | |
535 | if (*streamp == NULL) | |
536 | { | |
537 | int save_errno = errno; | |
538 | ||
539 | close (fd); | |
540 | if (full_pathp) | |
541 | xfree (*full_pathp); | |
542 | errno = save_errno; | |
543 | return 0; | |
544 | } | |
545 | ||
546 | return 1; | |
547 | } | |
548 | ||
549 | /* Load script FILE, which has already been opened as STREAM. | |
550 | FILE_TO_OPEN is the form of FILE to use if one needs to open the file. | |
551 | This is provided as FILE may have been found via the source search path. | |
552 | An important thing to note here is that FILE may be a symlink to a file | |
553 | with a different or non-existing suffix, and thus one cannot infer the | |
554 | extension language from FILE_TO_OPEN. */ | |
555 | ||
556 | static void | |
557 | source_script_from_stream (FILE *stream, const char *file, | |
558 | const char *file_to_open) | |
559 | { | |
560 | if (script_ext_mode != script_ext_off) | |
561 | { | |
562 | const struct extension_language_defn *extlang | |
563 | = get_ext_lang_of_file (file); | |
564 | ||
565 | if (extlang != NULL) | |
566 | { | |
567 | if (ext_lang_present_p (extlang)) | |
568 | { | |
569 | script_sourcer_func *sourcer | |
570 | = ext_lang_script_sourcer (extlang); | |
571 | ||
572 | gdb_assert (sourcer != NULL); | |
573 | sourcer (extlang, stream, file_to_open); | |
574 | return; | |
575 | } | |
576 | else if (script_ext_mode == script_ext_soft) | |
577 | { | |
578 | /* Assume the file is a gdb script. | |
579 | This is handled below. */ | |
580 | } | |
581 | else | |
582 | throw_ext_lang_unsupported (extlang); | |
583 | } | |
584 | } | |
585 | ||
586 | script_from_file (stream, file); | |
587 | } | |
588 | ||
589 | /* Worker to perform the "source" command. | |
590 | Load script FILE. | |
591 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
592 | search for it in the source search path. */ | |
593 | ||
594 | static void | |
595 | source_script_with_search (const char *file, int from_tty, int search_path) | |
596 | { | |
597 | FILE *stream; | |
598 | char *full_path; | |
599 | struct cleanup *old_cleanups; | |
600 | ||
601 | if (file == NULL || *file == 0) | |
602 | error (_("source command requires file name of file to source.")); | |
603 | ||
604 | if (!find_and_open_script (file, search_path, &stream, &full_path)) | |
605 | { | |
606 | /* The script wasn't found, or was otherwise inaccessible. | |
607 | If the source command was invoked interactively, throw an | |
608 | error. Otherwise (e.g. if it was invoked by a script), | |
609 | just emit a warning, rather than cause an error. */ | |
610 | if (from_tty) | |
611 | perror_with_name (file); | |
612 | else | |
613 | { | |
614 | perror_warning_with_name (file); | |
615 | return; | |
616 | } | |
617 | } | |
618 | ||
619 | old_cleanups = make_cleanup (xfree, full_path); | |
620 | make_cleanup_fclose (stream); | |
621 | /* The python support reopens the file, so we need to pass full_path here | |
622 | in case the file was found on the search path. It's useful to do this | |
623 | anyway so that error messages show the actual file used. But only do | |
624 | this if we (may have) used search_path, as printing the full path in | |
625 | errors for the non-search case can be more noise than signal. */ | |
626 | source_script_from_stream (stream, file, search_path ? full_path : file); | |
627 | do_cleanups (old_cleanups); | |
628 | } | |
629 | ||
630 | /* Wrapper around source_script_with_search to export it to main.c | |
631 | for use in loading .gdbinit scripts. */ | |
632 | ||
633 | void | |
634 | source_script (const char *file, int from_tty) | |
635 | { | |
636 | source_script_with_search (file, from_tty, 0); | |
637 | } | |
638 | ||
639 | /* Return the source_verbose global variable to its previous state | |
640 | on exit from the source command, by whatever means. */ | |
641 | static void | |
642 | source_verbose_cleanup (void *old_value) | |
643 | { | |
644 | source_verbose = *(int *)old_value; | |
645 | xfree (old_value); | |
646 | } | |
647 | ||
648 | static void | |
649 | source_command (char *args, int from_tty) | |
650 | { | |
651 | struct cleanup *old_cleanups; | |
652 | char *file = args; | |
653 | int *old_source_verbose = XNEW (int); | |
654 | int search_path = 0; | |
655 | ||
656 | *old_source_verbose = source_verbose; | |
657 | old_cleanups = make_cleanup (source_verbose_cleanup, | |
658 | old_source_verbose); | |
659 | ||
660 | /* -v causes the source command to run in verbose mode. | |
661 | -s causes the file to be searched in the source search path, | |
662 | even if the file name contains a '/'. | |
663 | We still have to be able to handle filenames with spaces in a | |
664 | backward compatible way, so buildargv is not appropriate. */ | |
665 | ||
666 | if (args) | |
667 | { | |
668 | while (args[0] != '\0') | |
669 | { | |
670 | /* Make sure leading white space does not break the | |
671 | comparisons. */ | |
672 | args = skip_spaces (args); | |
673 | ||
674 | if (args[0] != '-') | |
675 | break; | |
676 | ||
677 | if (args[1] == 'v' && isspace (args[2])) | |
678 | { | |
679 | source_verbose = 1; | |
680 | ||
681 | /* Skip passed -v. */ | |
682 | args = &args[3]; | |
683 | } | |
684 | else if (args[1] == 's' && isspace (args[2])) | |
685 | { | |
686 | search_path = 1; | |
687 | ||
688 | /* Skip passed -s. */ | |
689 | args = &args[3]; | |
690 | } | |
691 | else | |
692 | break; | |
693 | } | |
694 | ||
695 | file = skip_spaces (args); | |
696 | } | |
697 | ||
698 | source_script_with_search (file, from_tty, search_path); | |
699 | ||
700 | do_cleanups (old_cleanups); | |
701 | } | |
702 | ||
703 | ||
704 | static void | |
705 | echo_command (char *text, int from_tty) | |
706 | { | |
707 | const char *p = text; | |
708 | int c; | |
709 | ||
710 | if (text) | |
711 | while ((c = *p++) != '\0') | |
712 | { | |
713 | if (c == '\\') | |
714 | { | |
715 | /* \ at end of argument is used after spaces | |
716 | so they won't be lost. */ | |
717 | if (*p == 0) | |
718 | return; | |
719 | ||
720 | c = parse_escape (get_current_arch (), &p); | |
721 | if (c >= 0) | |
722 | printf_filtered ("%c", c); | |
723 | } | |
724 | else | |
725 | printf_filtered ("%c", c); | |
726 | } | |
727 | ||
728 | /* Force this output to appear now. */ | |
729 | wrap_here (""); | |
730 | gdb_flush (gdb_stdout); | |
731 | } | |
732 | ||
733 | static void | |
734 | shell_escape (const char *arg, int from_tty) | |
735 | { | |
736 | #if defined(CANT_FORK) || \ | |
737 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) | |
738 | /* If ARG is NULL, they want an inferior shell, but `system' just | |
739 | reports if the shell is available when passed a NULL arg. */ | |
740 | int rc = system (arg ? arg : ""); | |
741 | ||
742 | if (!arg) | |
743 | arg = "inferior shell"; | |
744 | ||
745 | if (rc == -1) | |
746 | { | |
747 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, | |
748 | safe_strerror (errno)); | |
749 | gdb_flush (gdb_stderr); | |
750 | } | |
751 | else if (rc) | |
752 | { | |
753 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); | |
754 | gdb_flush (gdb_stderr); | |
755 | } | |
756 | #ifdef GLOBAL_CURDIR | |
757 | /* Make sure to return to the directory GDB thinks it is, in case | |
758 | the shell command we just ran changed it. */ | |
759 | chdir (current_directory); | |
760 | #endif | |
761 | #else /* Can fork. */ | |
762 | int status, pid; | |
763 | ||
764 | if ((pid = vfork ()) == 0) | |
765 | { | |
766 | const char *p, *user_shell; | |
767 | ||
768 | close_most_fds (); | |
769 | ||
770 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) | |
771 | user_shell = "/bin/sh"; | |
772 | ||
773 | /* Get the name of the shell for arg0. */ | |
774 | p = lbasename (user_shell); | |
775 | ||
776 | if (!arg) | |
777 | execl (user_shell, p, (char *) 0); | |
778 | else | |
779 | execl (user_shell, p, "-c", arg, (char *) 0); | |
780 | ||
781 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, | |
782 | safe_strerror (errno)); | |
783 | gdb_flush (gdb_stderr); | |
784 | _exit (0177); | |
785 | } | |
786 | ||
787 | if (pid != -1) | |
788 | waitpid (pid, &status, 0); | |
789 | else | |
790 | error (_("Fork failed")); | |
791 | #endif /* Can fork. */ | |
792 | } | |
793 | ||
794 | /* Implementation of the "shell" command. */ | |
795 | ||
796 | static void | |
797 | shell_command (char *arg, int from_tty) | |
798 | { | |
799 | shell_escape (arg, from_tty); | |
800 | } | |
801 | ||
802 | static void | |
803 | edit_command (char *arg, int from_tty) | |
804 | { | |
805 | struct symtabs_and_lines sals; | |
806 | struct symtab_and_line sal; | |
807 | struct symbol *sym; | |
808 | const char *editor; | |
809 | char *p; | |
810 | const char *fn; | |
811 | ||
812 | /* Pull in the current default source line if necessary. */ | |
813 | if (arg == 0) | |
814 | { | |
815 | set_default_source_symtab_and_line (); | |
816 | sal = get_current_source_symtab_and_line (); | |
817 | } | |
818 | ||
819 | /* Bare "edit" edits file with present line. */ | |
820 | ||
821 | if (arg == 0) | |
822 | { | |
823 | if (sal.symtab == 0) | |
824 | error (_("No default source file yet.")); | |
825 | sal.line += get_lines_to_list () / 2; | |
826 | } | |
827 | else | |
828 | { | |
829 | char *arg1; | |
830 | ||
831 | /* Now should only be one argument -- decode it in SAL. */ | |
832 | arg1 = arg; | |
833 | event_location_up location = string_to_event_location (&arg1, | |
834 | current_language); | |
835 | sals = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
836 | NULL, NULL, 0); | |
837 | ||
838 | filter_sals (&sals); | |
839 | if (! sals.nelts) | |
840 | { | |
841 | /* C++ */ | |
842 | return; | |
843 | } | |
844 | if (sals.nelts > 1) | |
845 | { | |
846 | ambiguous_line_spec (&sals); | |
847 | xfree (sals.sals); | |
848 | return; | |
849 | } | |
850 | ||
851 | sal = sals.sals[0]; | |
852 | xfree (sals.sals); | |
853 | ||
854 | if (*arg1) | |
855 | error (_("Junk at end of line specification.")); | |
856 | ||
857 | /* If line was specified by address, first print exactly which | |
858 | line, and which file. In this case, sal.symtab == 0 means | |
859 | address is outside of all known source files, not that user | |
860 | failed to give a filename. */ | |
861 | if (*arg == '*') | |
862 | { | |
863 | struct gdbarch *gdbarch; | |
864 | ||
865 | if (sal.symtab == 0) | |
866 | error (_("No source file for address %s."), | |
867 | paddress (get_current_arch (), sal.pc)); | |
868 | ||
869 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); | |
870 | sym = find_pc_function (sal.pc); | |
871 | if (sym) | |
872 | printf_filtered ("%s is in %s (%s:%d).\n", | |
873 | paddress (gdbarch, sal.pc), | |
874 | SYMBOL_PRINT_NAME (sym), | |
875 | symtab_to_filename_for_display (sal.symtab), | |
876 | sal.line); | |
877 | else | |
878 | printf_filtered ("%s is at %s:%d.\n", | |
879 | paddress (gdbarch, sal.pc), | |
880 | symtab_to_filename_for_display (sal.symtab), | |
881 | sal.line); | |
882 | } | |
883 | ||
884 | /* If what was given does not imply a symtab, it must be an | |
885 | undebuggable symbol which means no source code. */ | |
886 | ||
887 | if (sal.symtab == 0) | |
888 | error (_("No line number known for %s."), arg); | |
889 | } | |
890 | ||
891 | if ((editor = (char *) getenv ("EDITOR")) == NULL) | |
892 | editor = "/bin/ex"; | |
893 | ||
894 | fn = symtab_to_fullname (sal.symtab); | |
895 | ||
896 | /* Quote the file name, in case it has whitespace or other special | |
897 | characters. */ | |
898 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); | |
899 | shell_escape (p, from_tty); | |
900 | xfree (p); | |
901 | } | |
902 | ||
903 | static void | |
904 | list_command (char *arg, int from_tty) | |
905 | { | |
906 | struct symtabs_and_lines sals, sals_end; | |
907 | struct symtab_and_line sal = { 0 }; | |
908 | struct symtab_and_line sal_end = { 0 }; | |
909 | struct symtab_and_line cursal = { 0 }; | |
910 | struct symbol *sym; | |
911 | char *arg1; | |
912 | int no_end = 1; | |
913 | int dummy_end = 0; | |
914 | int dummy_beg = 0; | |
915 | int linenum_beg = 0; | |
916 | char *p; | |
917 | ||
918 | /* Pull in the current default source line if necessary. */ | |
919 | if (arg == NULL || ((arg[0] == '+' || arg[0] == '-') && arg[1] == '\0')) | |
920 | { | |
921 | set_default_source_symtab_and_line (); | |
922 | cursal = get_current_source_symtab_and_line (); | |
923 | ||
924 | /* If this is the first "list" since we've set the current | |
925 | source line, center the listing around that line. */ | |
926 | if (get_first_line_listed () == 0) | |
927 | { | |
928 | int first; | |
929 | ||
930 | first = std::max (cursal.line - get_lines_to_list () / 2, 1); | |
931 | ||
932 | /* A small special case --- if listing backwards, and we | |
933 | should list only one line, list the preceding line, | |
934 | instead of the exact line we've just shown after e.g., | |
935 | stopping for a breakpoint. */ | |
936 | if (arg != NULL && arg[0] == '-' | |
937 | && get_lines_to_list () == 1 && first > 1) | |
938 | first -= 1; | |
939 | ||
940 | print_source_lines (cursal.symtab, first, | |
941 | first + get_lines_to_list (), 0); | |
942 | } | |
943 | ||
944 | /* "l" or "l +" lists next ten lines. */ | |
945 | else if (arg == NULL || arg[0] == '+') | |
946 | print_source_lines (cursal.symtab, cursal.line, | |
947 | cursal.line + get_lines_to_list (), 0); | |
948 | ||
949 | /* "l -" lists previous ten lines, the ones before the ten just | |
950 | listed. */ | |
951 | else if (arg[0] == '-') | |
952 | { | |
953 | if (get_first_line_listed () == 1) | |
954 | error (_("Already at the start of %s."), | |
955 | symtab_to_filename_for_display (cursal.symtab)); | |
956 | print_source_lines (cursal.symtab, | |
957 | std::max (get_first_line_listed () | |
958 | - get_lines_to_list (), 1), | |
959 | get_first_line_listed (), 0); | |
960 | } | |
961 | ||
962 | return; | |
963 | } | |
964 | ||
965 | /* Now if there is only one argument, decode it in SAL | |
966 | and set NO_END. | |
967 | If there are two arguments, decode them in SAL and SAL_END | |
968 | and clear NO_END; however, if one of the arguments is blank, | |
969 | set DUMMY_BEG or DUMMY_END to record that fact. */ | |
970 | ||
971 | if (!have_full_symbols () && !have_partial_symbols ()) | |
972 | error (_("No symbol table is loaded. Use the \"file\" command.")); | |
973 | ||
974 | arg1 = arg; | |
975 | if (*arg1 == ',') | |
976 | dummy_beg = 1; | |
977 | else | |
978 | { | |
979 | event_location_up location = string_to_event_location (&arg1, | |
980 | current_language); | |
981 | sals = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
982 | NULL, NULL, 0); | |
983 | ||
984 | filter_sals (&sals); | |
985 | if (!sals.nelts) | |
986 | { | |
987 | /* C++ */ | |
988 | return; | |
989 | } | |
990 | if (sals.nelts > 1) | |
991 | { | |
992 | ambiguous_line_spec (&sals); | |
993 | xfree (sals.sals); | |
994 | return; | |
995 | } | |
996 | ||
997 | sal = sals.sals[0]; | |
998 | xfree (sals.sals); | |
999 | } | |
1000 | ||
1001 | /* Record whether the BEG arg is all digits. */ | |
1002 | ||
1003 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); | |
1004 | linenum_beg = (p == arg1); | |
1005 | ||
1006 | while (*arg1 == ' ' || *arg1 == '\t') | |
1007 | arg1++; | |
1008 | if (*arg1 == ',') | |
1009 | { | |
1010 | no_end = 0; | |
1011 | arg1++; | |
1012 | while (*arg1 == ' ' || *arg1 == '\t') | |
1013 | arg1++; | |
1014 | if (*arg1 == 0) | |
1015 | dummy_end = 1; | |
1016 | else | |
1017 | { | |
1018 | event_location_up location | |
1019 | = string_to_event_location (&arg1, current_language); | |
1020 | if (dummy_beg) | |
1021 | sals_end = decode_line_1 (location.get (), | |
1022 | DECODE_LINE_LIST_MODE, NULL, NULL, 0); | |
1023 | else | |
1024 | sals_end = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
1025 | NULL, sal.symtab, sal.line); | |
1026 | ||
1027 | filter_sals (&sals_end); | |
1028 | if (sals_end.nelts == 0) | |
1029 | return; | |
1030 | if (sals_end.nelts > 1) | |
1031 | { | |
1032 | ambiguous_line_spec (&sals_end); | |
1033 | xfree (sals_end.sals); | |
1034 | return; | |
1035 | } | |
1036 | sal_end = sals_end.sals[0]; | |
1037 | xfree (sals_end.sals); | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | if (*arg1) | |
1042 | error (_("Junk at end of line specification.")); | |
1043 | ||
1044 | if (!no_end && !dummy_beg && !dummy_end | |
1045 | && sal.symtab != sal_end.symtab) | |
1046 | error (_("Specified start and end are in different files.")); | |
1047 | if (dummy_beg && dummy_end) | |
1048 | error (_("Two empty args do not say what lines to list.")); | |
1049 | ||
1050 | /* If line was specified by address, | |
1051 | first print exactly which line, and which file. | |
1052 | ||
1053 | In this case, sal.symtab == 0 means address is outside of all | |
1054 | known source files, not that user failed to give a filename. */ | |
1055 | if (*arg == '*') | |
1056 | { | |
1057 | struct gdbarch *gdbarch; | |
1058 | ||
1059 | if (sal.symtab == 0) | |
1060 | error (_("No source file for address %s."), | |
1061 | paddress (get_current_arch (), sal.pc)); | |
1062 | ||
1063 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); | |
1064 | sym = find_pc_function (sal.pc); | |
1065 | if (sym) | |
1066 | printf_filtered ("%s is in %s (%s:%d).\n", | |
1067 | paddress (gdbarch, sal.pc), | |
1068 | SYMBOL_PRINT_NAME (sym), | |
1069 | symtab_to_filename_for_display (sal.symtab), sal.line); | |
1070 | else | |
1071 | printf_filtered ("%s is at %s:%d.\n", | |
1072 | paddress (gdbarch, sal.pc), | |
1073 | symtab_to_filename_for_display (sal.symtab), sal.line); | |
1074 | } | |
1075 | ||
1076 | /* If line was not specified by just a line number, and it does not | |
1077 | imply a symtab, it must be an undebuggable symbol which means no | |
1078 | source code. */ | |
1079 | ||
1080 | if (!linenum_beg && sal.symtab == 0) | |
1081 | error (_("No line number known for %s."), arg); | |
1082 | ||
1083 | /* If this command is repeated with RET, | |
1084 | turn it into the no-arg variant. */ | |
1085 | ||
1086 | if (from_tty) | |
1087 | *arg = 0; | |
1088 | ||
1089 | if (dummy_beg && sal_end.symtab == 0) | |
1090 | error (_("No default source file yet. Do \"help list\".")); | |
1091 | if (dummy_beg) | |
1092 | print_source_lines (sal_end.symtab, | |
1093 | std::max (sal_end.line - (get_lines_to_list () - 1), 1), | |
1094 | sal_end.line + 1, 0); | |
1095 | else if (sal.symtab == 0) | |
1096 | error (_("No default source file yet. Do \"help list\".")); | |
1097 | else if (no_end) | |
1098 | { | |
1099 | int first_line = sal.line - get_lines_to_list () / 2; | |
1100 | ||
1101 | if (first_line < 1) first_line = 1; | |
1102 | ||
1103 | print_source_lines (sal.symtab, | |
1104 | first_line, | |
1105 | first_line + get_lines_to_list (), | |
1106 | 0); | |
1107 | } | |
1108 | else | |
1109 | print_source_lines (sal.symtab, sal.line, | |
1110 | (dummy_end | |
1111 | ? sal.line + get_lines_to_list () | |
1112 | : sal_end.line + 1), | |
1113 | 0); | |
1114 | } | |
1115 | ||
1116 | /* Subroutine of disassemble_command to simplify it. | |
1117 | Perform the disassembly. | |
1118 | NAME is the name of the function if known, or NULL. | |
1119 | [LOW,HIGH) are the range of addresses to disassemble. | |
1120 | MIXED is non-zero to print source with the assembler. */ | |
1121 | ||
1122 | static void | |
1123 | print_disassembly (struct gdbarch *gdbarch, const char *name, | |
1124 | CORE_ADDR low, CORE_ADDR high, int flags) | |
1125 | { | |
1126 | #if defined(TUI) | |
1127 | if (!tui_is_window_visible (DISASSEM_WIN)) | |
1128 | #endif | |
1129 | { | |
1130 | printf_filtered ("Dump of assembler code "); | |
1131 | if (name != NULL) | |
1132 | printf_filtered ("for function %s:\n", name); | |
1133 | else | |
1134 | printf_filtered ("from %s to %s:\n", | |
1135 | paddress (gdbarch, low), paddress (gdbarch, high)); | |
1136 | ||
1137 | /* Dump the specified range. */ | |
1138 | gdb_disassembly (gdbarch, current_uiout, flags, -1, low, high); | |
1139 | ||
1140 | printf_filtered ("End of assembler dump.\n"); | |
1141 | gdb_flush (gdb_stdout); | |
1142 | } | |
1143 | #if defined(TUI) | |
1144 | else | |
1145 | { | |
1146 | tui_show_assembly (gdbarch, low); | |
1147 | } | |
1148 | #endif | |
1149 | } | |
1150 | ||
1151 | /* Subroutine of disassemble_command to simplify it. | |
1152 | Print a disassembly of the current function according to FLAGS. */ | |
1153 | ||
1154 | static void | |
1155 | disassemble_current_function (int flags) | |
1156 | { | |
1157 | struct frame_info *frame; | |
1158 | struct gdbarch *gdbarch; | |
1159 | CORE_ADDR low, high, pc; | |
1160 | const char *name; | |
1161 | ||
1162 | frame = get_selected_frame (_("No frame selected.")); | |
1163 | gdbarch = get_frame_arch (frame); | |
1164 | pc = get_frame_address_in_block (frame); | |
1165 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
1166 | error (_("No function contains program counter for selected frame.")); | |
1167 | #if defined(TUI) | |
1168 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
1169 | `tui_version'. */ | |
1170 | if (tui_active) | |
1171 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
1172 | low = tui_get_low_disassembly_address (gdbarch, low, pc); | |
1173 | #endif | |
1174 | low += gdbarch_deprecated_function_start_offset (gdbarch); | |
1175 | ||
1176 | print_disassembly (gdbarch, name, low, high, flags); | |
1177 | } | |
1178 | ||
1179 | /* Dump a specified section of assembly code. | |
1180 | ||
1181 | Usage: | |
1182 | disassemble [/mrs] | |
1183 | - dump the assembly code for the function of the current pc | |
1184 | disassemble [/mrs] addr | |
1185 | - dump the assembly code for the function at ADDR | |
1186 | disassemble [/mrs] low,high | |
1187 | disassemble [/mrs] low,+length | |
1188 | - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length) | |
1189 | ||
1190 | A /m modifier will include source code with the assembly in a | |
1191 | "source centric" view. This view lists only the file of the first insn, | |
1192 | even if other source files are involved (e.g., inlined functions), and | |
1193 | the output is in source order, even with optimized code. This view is | |
1194 | considered deprecated as it hasn't been useful in practice. | |
1195 | ||
1196 | A /r modifier will include raw instructions in hex with the assembly. | |
1197 | ||
1198 | A /s modifier will include source code with the assembly, like /m, with | |
1199 | two important differences: | |
1200 | 1) The output is still in pc address order. | |
1201 | 2) File names and contents for all relevant source files are displayed. */ | |
1202 | ||
1203 | static void | |
1204 | disassemble_command (char *arg, int from_tty) | |
1205 | { | |
1206 | struct gdbarch *gdbarch = get_current_arch (); | |
1207 | CORE_ADDR low, high; | |
1208 | const char *name; | |
1209 | CORE_ADDR pc; | |
1210 | int flags; | |
1211 | const char *p; | |
1212 | ||
1213 | p = arg; | |
1214 | name = NULL; | |
1215 | flags = 0; | |
1216 | ||
1217 | if (p && *p == '/') | |
1218 | { | |
1219 | ++p; | |
1220 | ||
1221 | if (*p == '\0') | |
1222 | error (_("Missing modifier.")); | |
1223 | ||
1224 | while (*p && ! isspace (*p)) | |
1225 | { | |
1226 | switch (*p++) | |
1227 | { | |
1228 | case 'm': | |
1229 | flags |= DISASSEMBLY_SOURCE_DEPRECATED; | |
1230 | break; | |
1231 | case 'r': | |
1232 | flags |= DISASSEMBLY_RAW_INSN; | |
1233 | break; | |
1234 | case 's': | |
1235 | flags |= DISASSEMBLY_SOURCE; | |
1236 | break; | |
1237 | default: | |
1238 | error (_("Invalid disassembly modifier.")); | |
1239 | } | |
1240 | } | |
1241 | ||
1242 | p = skip_spaces_const (p); | |
1243 | } | |
1244 | ||
1245 | if ((flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) | |
1246 | == (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) | |
1247 | error (_("Cannot specify both /m and /s.")); | |
1248 | ||
1249 | if (! p || ! *p) | |
1250 | { | |
1251 | flags |= DISASSEMBLY_OMIT_FNAME; | |
1252 | disassemble_current_function (flags); | |
1253 | return; | |
1254 | } | |
1255 | ||
1256 | pc = value_as_address (parse_to_comma_and_eval (&p)); | |
1257 | if (p[0] == ',') | |
1258 | ++p; | |
1259 | if (p[0] == '\0') | |
1260 | { | |
1261 | /* One argument. */ | |
1262 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
1263 | error (_("No function contains specified address.")); | |
1264 | #if defined(TUI) | |
1265 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
1266 | `tui_version'. */ | |
1267 | if (tui_active) | |
1268 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
1269 | low = tui_get_low_disassembly_address (gdbarch, low, pc); | |
1270 | #endif | |
1271 | low += gdbarch_deprecated_function_start_offset (gdbarch); | |
1272 | flags |= DISASSEMBLY_OMIT_FNAME; | |
1273 | } | |
1274 | else | |
1275 | { | |
1276 | /* Two arguments. */ | |
1277 | int incl_flag = 0; | |
1278 | low = pc; | |
1279 | p = skip_spaces_const (p); | |
1280 | if (p[0] == '+') | |
1281 | { | |
1282 | ++p; | |
1283 | incl_flag = 1; | |
1284 | } | |
1285 | high = parse_and_eval_address (p); | |
1286 | if (incl_flag) | |
1287 | high += low; | |
1288 | } | |
1289 | ||
1290 | print_disassembly (gdbarch, name, low, high, flags); | |
1291 | } | |
1292 | ||
1293 | static void | |
1294 | make_command (char *arg, int from_tty) | |
1295 | { | |
1296 | if (arg == 0) | |
1297 | shell_escape ("make", from_tty); | |
1298 | else | |
1299 | { | |
1300 | std::string cmd = std::string ("make ") + arg; | |
1301 | ||
1302 | shell_escape (cmd.c_str (), from_tty); | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | static void | |
1307 | show_user (char *args, int from_tty) | |
1308 | { | |
1309 | struct cmd_list_element *c; | |
1310 | extern struct cmd_list_element *cmdlist; | |
1311 | ||
1312 | if (args) | |
1313 | { | |
1314 | const char *comname = args; | |
1315 | ||
1316 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); | |
1317 | if (!cli_user_command_p (c)) | |
1318 | error (_("Not a user command.")); | |
1319 | show_user_1 (c, "", args, gdb_stdout); | |
1320 | } | |
1321 | else | |
1322 | { | |
1323 | for (c = cmdlist; c; c = c->next) | |
1324 | { | |
1325 | if (cli_user_command_p (c) || c->prefixlist != NULL) | |
1326 | show_user_1 (c, "", c->name, gdb_stdout); | |
1327 | } | |
1328 | } | |
1329 | } | |
1330 | ||
1331 | /* Search through names of commands and documentations for a certain | |
1332 | regular expression. */ | |
1333 | ||
1334 | static void | |
1335 | apropos_command (char *searchstr, int from_tty) | |
1336 | { | |
1337 | if (searchstr == NULL) | |
1338 | error (_("REGEXP string is empty")); | |
1339 | ||
1340 | compiled_regex pattern (searchstr, REG_ICASE, | |
1341 | _("Error in regular expression")); | |
1342 | ||
1343 | apropos_cmd (gdb_stdout, cmdlist, pattern, ""); | |
1344 | } | |
1345 | ||
1346 | /* Subroutine of alias_command to simplify it. | |
1347 | Return the first N elements of ARGV flattened back to a string | |
1348 | with a space separating each element. | |
1349 | ARGV may not be NULL. | |
1350 | This does not take care of quoting elements in case they contain spaces | |
1351 | on purpose. */ | |
1352 | ||
1353 | static std::string | |
1354 | argv_to_string (char **argv, int n) | |
1355 | { | |
1356 | int i; | |
1357 | std::string result; | |
1358 | ||
1359 | gdb_assert (argv != NULL); | |
1360 | gdb_assert (n >= 0 && n <= countargv (argv)); | |
1361 | ||
1362 | for (i = 0; i < n; ++i) | |
1363 | { | |
1364 | if (i > 0) | |
1365 | result += " "; | |
1366 | result += argv[i]; | |
1367 | } | |
1368 | ||
1369 | return result; | |
1370 | } | |
1371 | ||
1372 | /* Subroutine of alias_command to simplify it. | |
1373 | Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */ | |
1374 | ||
1375 | static int | |
1376 | valid_command_p (const char *command) | |
1377 | { | |
1378 | struct cmd_list_element *c; | |
1379 | ||
1380 | c = lookup_cmd_1 (& command, cmdlist, NULL, 1); | |
1381 | ||
1382 | if (c == NULL || c == (struct cmd_list_element *) -1) | |
1383 | return FALSE; | |
1384 | ||
1385 | /* This is the slightly tricky part. | |
1386 | lookup_cmd_1 will return a pointer to the last part of COMMAND | |
1387 | to match, leaving COMMAND pointing at the remainder. */ | |
1388 | while (*command == ' ' || *command == '\t') | |
1389 | ++command; | |
1390 | return *command == '\0'; | |
1391 | } | |
1392 | ||
1393 | /* Called when "alias" was incorrectly used. */ | |
1394 | ||
1395 | static void | |
1396 | alias_usage_error (void) | |
1397 | { | |
1398 | error (_("Usage: alias [-a] [--] ALIAS = COMMAND")); | |
1399 | } | |
1400 | ||
1401 | /* Make an alias of an existing command. */ | |
1402 | ||
1403 | static void | |
1404 | alias_command (char *args, int from_tty) | |
1405 | { | |
1406 | int i, alias_argc, command_argc; | |
1407 | int abbrev_flag = 0; | |
1408 | char *args2, *equals; | |
1409 | const char *alias, *command; | |
1410 | char **alias_argv, **command_argv; | |
1411 | struct cleanup *cleanup; | |
1412 | ||
1413 | if (args == NULL || strchr (args, '=') == NULL) | |
1414 | alias_usage_error (); | |
1415 | ||
1416 | args2 = xstrdup (args); | |
1417 | cleanup = make_cleanup (xfree, args2); | |
1418 | equals = strchr (args2, '='); | |
1419 | *equals = '\0'; | |
1420 | alias_argv = gdb_buildargv (args2); | |
1421 | make_cleanup_freeargv (alias_argv); | |
1422 | command_argv = gdb_buildargv (equals + 1); | |
1423 | make_cleanup_freeargv (command_argv); | |
1424 | ||
1425 | for (i = 0; alias_argv[i] != NULL; ) | |
1426 | { | |
1427 | if (strcmp (alias_argv[i], "-a") == 0) | |
1428 | { | |
1429 | ++alias_argv; | |
1430 | abbrev_flag = 1; | |
1431 | } | |
1432 | else if (strcmp (alias_argv[i], "--") == 0) | |
1433 | { | |
1434 | ++alias_argv; | |
1435 | break; | |
1436 | } | |
1437 | else | |
1438 | break; | |
1439 | } | |
1440 | ||
1441 | if (alias_argv[0] == NULL || command_argv[0] == NULL | |
1442 | || *alias_argv[0] == '\0' || *command_argv[0] == '\0') | |
1443 | alias_usage_error (); | |
1444 | ||
1445 | for (i = 0; alias_argv[i] != NULL; ++i) | |
1446 | { | |
1447 | if (! valid_user_defined_cmd_name_p (alias_argv[i])) | |
1448 | { | |
1449 | if (i == 0) | |
1450 | error (_("Invalid command name: %s"), alias_argv[i]); | |
1451 | else | |
1452 | error (_("Invalid command element name: %s"), alias_argv[i]); | |
1453 | } | |
1454 | } | |
1455 | ||
1456 | alias_argc = countargv (alias_argv); | |
1457 | command_argc = countargv (command_argv); | |
1458 | ||
1459 | /* COMMAND must exist. | |
1460 | Reconstruct the command to remove any extraneous spaces, | |
1461 | for better error messages. */ | |
1462 | std::string command_string (argv_to_string (command_argv, command_argc)); | |
1463 | command = command_string.c_str (); | |
1464 | if (! valid_command_p (command)) | |
1465 | error (_("Invalid command to alias to: %s"), command); | |
1466 | ||
1467 | /* ALIAS must not exist. */ | |
1468 | std::string alias_string (argv_to_string (alias_argv, alias_argc)); | |
1469 | alias = alias_string.c_str (); | |
1470 | if (valid_command_p (alias)) | |
1471 | error (_("Alias already exists: %s"), alias); | |
1472 | ||
1473 | /* If ALIAS is one word, it is an alias for the entire COMMAND. | |
1474 | Example: alias spe = set print elements | |
1475 | ||
1476 | Otherwise ALIAS and COMMAND must have the same number of words, | |
1477 | and every word except the last must match; and the last word of | |
1478 | ALIAS is made an alias of the last word of COMMAND. | |
1479 | Example: alias set print elms = set pr elem | |
1480 | Note that unambiguous abbreviations are allowed. */ | |
1481 | ||
1482 | if (alias_argc == 1) | |
1483 | { | |
1484 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1485 | add_com_alias (xstrdup (alias_argv[0]), command, class_alias, | |
1486 | abbrev_flag); | |
1487 | } | |
1488 | else | |
1489 | { | |
1490 | const char *alias_prefix, *command_prefix; | |
1491 | struct cmd_list_element *c_alias, *c_command; | |
1492 | ||
1493 | if (alias_argc != command_argc) | |
1494 | error (_("Mismatched command length between ALIAS and COMMAND.")); | |
1495 | ||
1496 | /* Create copies of ALIAS and COMMAND without the last word, | |
1497 | and use that to verify the leading elements match. */ | |
1498 | std::string alias_prefix_string (argv_to_string (alias_argv, | |
1499 | alias_argc - 1)); | |
1500 | std::string command_prefix_string (argv_to_string (alias_argv, | |
1501 | command_argc - 1)); | |
1502 | alias_prefix = alias_prefix_string.c_str (); | |
1503 | command_prefix = command_prefix_string.c_str (); | |
1504 | ||
1505 | c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1); | |
1506 | /* We've already tried to look up COMMAND. */ | |
1507 | gdb_assert (c_command != NULL | |
1508 | && c_command != (struct cmd_list_element *) -1); | |
1509 | gdb_assert (c_command->prefixlist != NULL); | |
1510 | c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1); | |
1511 | if (c_alias != c_command) | |
1512 | error (_("ALIAS and COMMAND prefixes do not match.")); | |
1513 | ||
1514 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1515 | add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]), | |
1516 | command_argv[command_argc - 1], | |
1517 | class_alias, abbrev_flag, c_command->prefixlist); | |
1518 | } | |
1519 | ||
1520 | do_cleanups (cleanup); | |
1521 | } | |
1522 | \f | |
1523 | /* Print a list of files and line numbers which a user may choose from | |
1524 | in order to list a function which was specified ambiguously (as | |
1525 | with `list classname::overloadedfuncname', for example). The | |
1526 | vector in SALS provides the filenames and line numbers. */ | |
1527 | ||
1528 | static void | |
1529 | ambiguous_line_spec (struct symtabs_and_lines *sals) | |
1530 | { | |
1531 | int i; | |
1532 | ||
1533 | for (i = 0; i < sals->nelts; ++i) | |
1534 | printf_filtered (_("file: \"%s\", line number: %d\n"), | |
1535 | symtab_to_filename_for_display (sals->sals[i].symtab), | |
1536 | sals->sals[i].line); | |
1537 | } | |
1538 | ||
1539 | /* Sort function for filter_sals. */ | |
1540 | ||
1541 | static int | |
1542 | compare_symtabs (const void *a, const void *b) | |
1543 | { | |
1544 | const struct symtab_and_line *sala = (const struct symtab_and_line *) a; | |
1545 | const struct symtab_and_line *salb = (const struct symtab_and_line *) b; | |
1546 | const char *dira = SYMTAB_DIRNAME (sala->symtab); | |
1547 | const char *dirb = SYMTAB_DIRNAME (salb->symtab); | |
1548 | int r; | |
1549 | ||
1550 | if (dira == NULL) | |
1551 | { | |
1552 | if (dirb != NULL) | |
1553 | return -1; | |
1554 | } | |
1555 | else if (dirb == NULL) | |
1556 | { | |
1557 | if (dira != NULL) | |
1558 | return 1; | |
1559 | } | |
1560 | else | |
1561 | { | |
1562 | r = filename_cmp (dira, dirb); | |
1563 | if (r) | |
1564 | return r; | |
1565 | } | |
1566 | ||
1567 | r = filename_cmp (sala->symtab->filename, salb->symtab->filename); | |
1568 | if (r) | |
1569 | return r; | |
1570 | ||
1571 | if (sala->line < salb->line) | |
1572 | return -1; | |
1573 | return sala->line == salb->line ? 0 : 1; | |
1574 | } | |
1575 | ||
1576 | /* Remove any SALs that do not match the current program space, or | |
1577 | which appear to be "file:line" duplicates. */ | |
1578 | ||
1579 | static void | |
1580 | filter_sals (struct symtabs_and_lines *sals) | |
1581 | { | |
1582 | int i, out, prev; | |
1583 | ||
1584 | out = 0; | |
1585 | for (i = 0; i < sals->nelts; ++i) | |
1586 | { | |
1587 | if (sals->sals[i].pspace == current_program_space | |
1588 | && sals->sals[i].symtab != NULL) | |
1589 | { | |
1590 | sals->sals[out] = sals->sals[i]; | |
1591 | ++out; | |
1592 | } | |
1593 | } | |
1594 | sals->nelts = out; | |
1595 | ||
1596 | qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line), | |
1597 | compare_symtabs); | |
1598 | ||
1599 | out = 1; | |
1600 | prev = 0; | |
1601 | for (i = 1; i < sals->nelts; ++i) | |
1602 | { | |
1603 | if (compare_symtabs (&sals->sals[prev], &sals->sals[i])) | |
1604 | { | |
1605 | /* Symtabs differ. */ | |
1606 | sals->sals[out] = sals->sals[i]; | |
1607 | prev = out; | |
1608 | ++out; | |
1609 | } | |
1610 | } | |
1611 | ||
1612 | if (sals->nelts == 0) | |
1613 | { | |
1614 | xfree (sals->sals); | |
1615 | sals->sals = NULL; | |
1616 | } | |
1617 | else | |
1618 | sals->nelts = out; | |
1619 | } | |
1620 | ||
1621 | static void | |
1622 | set_debug (char *arg, int from_tty) | |
1623 | { | |
1624 | printf_unfiltered (_("\"set debug\" must be followed by " | |
1625 | "the name of a debug subcommand.\n")); | |
1626 | help_list (setdebuglist, "set debug ", all_commands, gdb_stdout); | |
1627 | } | |
1628 | ||
1629 | static void | |
1630 | show_debug (char *args, int from_tty) | |
1631 | { | |
1632 | cmd_show_list (showdebuglist, from_tty, ""); | |
1633 | } | |
1634 | ||
1635 | void | |
1636 | init_cmd_lists (void) | |
1637 | { | |
1638 | max_user_call_depth = 1024; | |
1639 | } | |
1640 | ||
1641 | static void | |
1642 | show_info_verbose (struct ui_file *file, int from_tty, | |
1643 | struct cmd_list_element *c, | |
1644 | const char *value) | |
1645 | { | |
1646 | if (info_verbose) | |
1647 | fprintf_filtered (file, | |
1648 | _("Verbose printing of informational messages is %s.\n"), | |
1649 | value); | |
1650 | else | |
1651 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); | |
1652 | } | |
1653 | ||
1654 | static void | |
1655 | show_history_expansion_p (struct ui_file *file, int from_tty, | |
1656 | struct cmd_list_element *c, const char *value) | |
1657 | { | |
1658 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), | |
1659 | value); | |
1660 | } | |
1661 | ||
1662 | static void | |
1663 | show_remote_debug (struct ui_file *file, int from_tty, | |
1664 | struct cmd_list_element *c, const char *value) | |
1665 | { | |
1666 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), | |
1667 | value); | |
1668 | } | |
1669 | ||
1670 | static void | |
1671 | show_remote_timeout (struct ui_file *file, int from_tty, | |
1672 | struct cmd_list_element *c, const char *value) | |
1673 | { | |
1674 | fprintf_filtered (file, | |
1675 | _("Timeout limit to wait for target to respond is %s.\n"), | |
1676 | value); | |
1677 | } | |
1678 | ||
1679 | static void | |
1680 | show_max_user_call_depth (struct ui_file *file, int from_tty, | |
1681 | struct cmd_list_element *c, const char *value) | |
1682 | { | |
1683 | fprintf_filtered (file, | |
1684 | _("The max call depth for user-defined commands is %s.\n"), | |
1685 | value); | |
1686 | } | |
1687 | ||
1688 | \f | |
1689 | ||
1690 | initialize_file_ftype _initialize_cli_cmds; | |
1691 | ||
1692 | void | |
1693 | _initialize_cli_cmds (void) | |
1694 | { | |
1695 | struct cmd_list_element *c; | |
1696 | ||
1697 | /* Define the classes of commands. | |
1698 | They will appear in the help list in alphabetical order. */ | |
1699 | ||
1700 | add_cmd ("internals", class_maintenance, NULL, _("\ | |
1701 | Maintenance commands.\n\ | |
1702 | Some gdb commands are provided just for use by gdb maintainers.\n\ | |
1703 | These commands are subject to frequent change, and may not be as\n\ | |
1704 | well documented as user commands."), | |
1705 | &cmdlist); | |
1706 | add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist); | |
1707 | add_cmd ("aliases", class_alias, NULL, | |
1708 | _("Aliases of other commands."), &cmdlist); | |
1709 | add_cmd ("user-defined", class_user, NULL, _("\ | |
1710 | User-defined commands.\n\ | |
1711 | The commands in this class are those defined by the user.\n\ | |
1712 | Use the \"define\" command to define a command."), &cmdlist); | |
1713 | add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist); | |
1714 | if (!dbx_commands) | |
1715 | add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist); | |
1716 | add_cmd ("files", class_files, NULL, _("Specifying and examining files."), | |
1717 | &cmdlist); | |
1718 | add_cmd ("breakpoints", class_breakpoint, NULL, | |
1719 | _("Making program stop at certain points."), &cmdlist); | |
1720 | add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist); | |
1721 | add_cmd ("stack", class_stack, NULL, _("\ | |
1722 | Examining the stack.\n\ | |
1723 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ | |
1724 | counting from zero for the innermost (currently executing) frame.\n\n\ | |
1725 | At any time gdb identifies one frame as the \"selected\" frame.\n\ | |
1726 | Variable lookups are done with respect to the selected frame.\n\ | |
1727 | When the program being debugged stops, gdb selects the innermost frame.\n\ | |
1728 | The commands below can be used to select other frames by number or address."), | |
1729 | &cmdlist); | |
1730 | add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist); | |
1731 | ||
1732 | /* Define general commands. */ | |
1733 | ||
1734 | add_com ("pwd", class_files, pwd_command, _("\ | |
1735 | Print working directory. This is used for your program as well.")); | |
1736 | ||
1737 | c = add_cmd ("cd", class_files, cd_command, _("\ | |
1738 | Set working directory to DIR for debugger and program being debugged.\n\ | |
1739 | The change does not take effect for the program being debugged\n\ | |
1740 | until the next time it is started."), &cmdlist); | |
1741 | set_cmd_completer (c, filename_completer); | |
1742 | ||
1743 | add_com ("echo", class_support, echo_command, _("\ | |
1744 | Print a constant string. Give string as argument.\n\ | |
1745 | C escape sequences may be used in the argument.\n\ | |
1746 | No newline is added at the end of the argument;\n\ | |
1747 | use \"\\n\" if you want a newline to be printed.\n\ | |
1748 | Since leading and trailing whitespace are ignored in command arguments,\n\ | |
1749 | if you want to print some you must use \"\\\" before leading whitespace\n\ | |
1750 | to be printed or after trailing whitespace.")); | |
1751 | ||
1752 | add_setshow_enum_cmd ("script-extension", class_support, | |
1753 | script_ext_enums, &script_ext_mode, _("\ | |
1754 | Set mode for script filename extension recognition."), _("\ | |
1755 | Show mode for script filename extension recognition."), _("\ | |
1756 | off == no filename extension recognition (all sourced files are GDB scripts)\n\ | |
1757 | soft == evaluate script according to filename extension, fallback to GDB script" | |
1758 | "\n\ | |
1759 | strict == evaluate script according to filename extension, error if not supported" | |
1760 | ), | |
1761 | NULL, | |
1762 | show_script_ext_mode, | |
1763 | &setlist, &showlist); | |
1764 | ||
1765 | add_com ("quit", class_support, quit_command, _("\ | |
1766 | Exit gdb.\n\ | |
1767 | Usage: quit [EXPR]\n\ | |
1768 | The optional expression EXPR, if present, is evaluated and the result\n\ | |
1769 | used as GDB's exit code. The default is zero.")); | |
1770 | c = add_com ("help", class_support, help_command, | |
1771 | _("Print list of commands.")); | |
1772 | set_cmd_completer (c, command_completer); | |
1773 | add_com_alias ("q", "quit", class_support, 1); | |
1774 | add_com_alias ("h", "help", class_support, 1); | |
1775 | ||
1776 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ | |
1777 | Set verbosity."), _("\ | |
1778 | Show verbosity."), NULL, | |
1779 | set_verbose, | |
1780 | show_info_verbose, | |
1781 | &setlist, &showlist); | |
1782 | ||
1783 | add_prefix_cmd ("history", class_support, set_history, | |
1784 | _("Generic command for setting command history parameters."), | |
1785 | &sethistlist, "set history ", 0, &setlist); | |
1786 | add_prefix_cmd ("history", class_support, show_history, | |
1787 | _("Generic command for showing command history parameters."), | |
1788 | &showhistlist, "show history ", 0, &showlist); | |
1789 | ||
1790 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ | |
1791 | Set history expansion on command input."), _("\ | |
1792 | Show history expansion on command input."), _("\ | |
1793 | Without an argument, history expansion is enabled."), | |
1794 | NULL, | |
1795 | show_history_expansion_p, | |
1796 | &sethistlist, &showhistlist); | |
1797 | ||
1798 | add_prefix_cmd ("info", class_info, info_command, _("\ | |
1799 | Generic command for showing things about the program being debugged."), | |
1800 | &infolist, "info ", 0, &cmdlist); | |
1801 | add_com_alias ("i", "info", class_info, 1); | |
1802 | add_com_alias ("inf", "info", class_info, 1); | |
1803 | ||
1804 | add_com ("complete", class_obscure, complete_command, | |
1805 | _("List the completions for the rest of the line as a command.")); | |
1806 | ||
1807 | add_prefix_cmd ("show", class_info, show_command, _("\ | |
1808 | Generic command for showing things about the debugger."), | |
1809 | &showlist, "show ", 0, &cmdlist); | |
1810 | /* Another way to get at the same thing. */ | |
1811 | add_info ("set", show_command, _("Show all GDB settings.")); | |
1812 | ||
1813 | add_cmd ("commands", no_set_class, show_commands, _("\ | |
1814 | Show the history of commands you typed.\n\ | |
1815 | You can supply a command number to start with, or a `+' to start after\n\ | |
1816 | the previous command number shown."), | |
1817 | &showlist); | |
1818 | ||
1819 | add_cmd ("version", no_set_class, show_version, | |
1820 | _("Show what version of GDB this is."), &showlist); | |
1821 | ||
1822 | add_cmd ("configuration", no_set_class, show_configuration, | |
1823 | _("Show how GDB was configured at build time."), &showlist); | |
1824 | ||
1825 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ | |
1826 | Set debugging of remote protocol."), _("\ | |
1827 | Show debugging of remote protocol."), _("\ | |
1828 | When enabled, each packet sent or received with the remote target\n\ | |
1829 | is displayed."), | |
1830 | NULL, | |
1831 | show_remote_debug, | |
1832 | &setdebuglist, &showdebuglist); | |
1833 | ||
1834 | add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class, | |
1835 | &remote_timeout, _("\ | |
1836 | Set timeout limit to wait for target to respond."), _("\ | |
1837 | Show timeout limit to wait for target to respond."), _("\ | |
1838 | This value is used to set the time limit for gdb to wait for a response\n\ | |
1839 | from the target."), | |
1840 | NULL, | |
1841 | show_remote_timeout, | |
1842 | &setlist, &showlist); | |
1843 | ||
1844 | add_prefix_cmd ("debug", no_class, set_debug, | |
1845 | _("Generic command for setting gdb debugging flags"), | |
1846 | &setdebuglist, "set debug ", 0, &setlist); | |
1847 | ||
1848 | add_prefix_cmd ("debug", no_class, show_debug, | |
1849 | _("Generic command for showing gdb debugging flags"), | |
1850 | &showdebuglist, "show debug ", 0, &showlist); | |
1851 | ||
1852 | c = add_com ("shell", class_support, shell_command, _("\ | |
1853 | Execute the rest of the line as a shell command.\n\ | |
1854 | With no arguments, run an inferior shell.")); | |
1855 | set_cmd_completer (c, filename_completer); | |
1856 | ||
1857 | c = add_com ("edit", class_files, edit_command, _("\ | |
1858 | Edit specified file or function.\n\ | |
1859 | With no argument, edits file containing most recent line listed.\n\ | |
1860 | Editing targets can be specified in these ways:\n\ | |
1861 | FILE:LINENUM, to edit at that line in that file,\n\ | |
1862 | FUNCTION, to edit at the beginning of that function,\n\ | |
1863 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1864 | *ADDRESS, to edit at the line containing that address.\n\ | |
1865 | Uses EDITOR environment variable contents as editor (or ex as default).")); | |
1866 | ||
1867 | c->completer = location_completer; | |
1868 | ||
1869 | add_com ("list", class_files, list_command, _("\ | |
1870 | List specified function or line.\n\ | |
1871 | With no argument, lists ten more lines after or around previous listing.\n\ | |
1872 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ | |
1873 | One argument specifies a line, and ten lines are listed around that line.\n\ | |
1874 | Two arguments with comma between specify starting and ending lines to list.\n\ | |
1875 | Lines can be specified in these ways:\n\ | |
1876 | LINENUM, to list around that line in current file,\n\ | |
1877 | FILE:LINENUM, to list around that line in that file,\n\ | |
1878 | FUNCTION, to list around beginning of that function,\n\ | |
1879 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1880 | *ADDRESS, to list around the line containing that address.\n\ | |
1881 | With two args, if one is empty, it stands for ten lines away from\n\ | |
1882 | the other arg.\n\ | |
1883 | \n\ | |
1884 | By default, when a single location is given, display ten lines.\n\ | |
1885 | This can be changed using \"set listsize\", and the current value\n\ | |
1886 | can be shown using \"show listsize\".")); | |
1887 | ||
1888 | add_com_alias ("l", "list", class_files, 1); | |
1889 | ||
1890 | if (dbx_commands) | |
1891 | add_com_alias ("file", "list", class_files, 1); | |
1892 | ||
1893 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ | |
1894 | Disassemble a specified section of memory.\n\ | |
1895 | Default is the function surrounding the pc of the selected frame.\n\ | |
1896 | \n\ | |
1897 | With a /m modifier, source lines are included (if available).\n\ | |
1898 | This view is \"source centric\": the output is in source line order,\n\ | |
1899 | regardless of any optimization that is present. Only the main source file\n\ | |
1900 | is displayed, not those of, e.g., any inlined functions.\n\ | |
1901 | This modifier hasn't proved useful in practice and is deprecated\n\ | |
1902 | in favor of /s.\n\ | |
1903 | \n\ | |
1904 | With a /s modifier, source lines are included (if available).\n\ | |
1905 | This differs from /m in two important respects:\n\ | |
1906 | - the output is still in pc address order, and\n\ | |
1907 | - file names and contents for all relevant source files are displayed.\n\ | |
1908 | \n\ | |
1909 | With a /r modifier, raw instructions in hex are included.\n\ | |
1910 | \n\ | |
1911 | With a single argument, the function surrounding that address is dumped.\n\ | |
1912 | Two arguments (separated by a comma) are taken as a range of memory to dump,\n\ | |
1913 | in the form of \"start,end\", or \"start,+length\".\n\ | |
1914 | \n\ | |
1915 | Note that the address is interpreted as an expression, not as a location\n\ | |
1916 | like in the \"break\" command.\n\ | |
1917 | So, for example, if you want to disassemble function bar in file foo.c\n\ | |
1918 | you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\".")); | |
1919 | set_cmd_completer (c, location_completer); | |
1920 | ||
1921 | add_com_alias ("!", "shell", class_support, 0); | |
1922 | ||
1923 | c = add_com ("make", class_support, make_command, _("\ | |
1924 | Run the ``make'' program using the rest of the line as arguments.")); | |
1925 | set_cmd_completer (c, filename_completer); | |
1926 | add_cmd ("user", no_class, show_user, _("\ | |
1927 | Show definitions of non-python/scheme user defined commands.\n\ | |
1928 | Argument is the name of the user defined command.\n\ | |
1929 | With no argument, show definitions of all user defined commands."), &showlist); | |
1930 | add_com ("apropos", class_support, apropos_command, | |
1931 | _("Search for commands matching a REGEXP")); | |
1932 | ||
1933 | add_setshow_uinteger_cmd ("max-user-call-depth", no_class, | |
1934 | &max_user_call_depth, _("\ | |
1935 | Set the max call depth for non-python/scheme user-defined commands."), _("\ | |
1936 | Show the max call depth for non-python/scheme user-defined commands."), NULL, | |
1937 | NULL, | |
1938 | show_max_user_call_depth, | |
1939 | &setlist, &showlist); | |
1940 | ||
1941 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ | |
1942 | Set tracing of GDB CLI commands."), _("\ | |
1943 | Show state of GDB CLI command tracing."), _("\ | |
1944 | When 'on', each command is displayed as it is executed."), | |
1945 | NULL, | |
1946 | NULL, | |
1947 | &setlist, &showlist); | |
1948 | ||
1949 | c = add_com ("alias", class_support, alias_command, _("\ | |
1950 | Define a new command that is an alias of an existing command.\n\ | |
1951 | Usage: alias [-a] [--] ALIAS = COMMAND\n\ | |
1952 | ALIAS is the name of the alias command to create.\n\ | |
1953 | COMMAND is the command being aliased to.\n\ | |
1954 | If \"-a\" is specified, the command is an abbreviation,\n\ | |
1955 | and will not appear in help command list output.\n\ | |
1956 | \n\ | |
1957 | Examples:\n\ | |
1958 | Make \"spe\" an alias of \"set print elements\":\n\ | |
1959 | alias spe = set print elements\n\ | |
1960 | Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\ | |
1961 | alias -a set print elms = set print elements")); | |
1962 | } | |
1963 | ||
1964 | void | |
1965 | init_cli_cmds (void) | |
1966 | { | |
1967 | struct cmd_list_element *c; | |
1968 | char *source_help_text; | |
1969 | ||
1970 | source_help_text = xstrprintf (_("\ | |
1971 | Read commands from a file named FILE.\n\ | |
1972 | \n\ | |
1973 | Usage: source [-s] [-v] FILE\n\ | |
1974 | -s: search for the script in the source search path,\n\ | |
1975 | even if FILE contains directories.\n\ | |
1976 | -v: each command in FILE is echoed as it is executed.\n\ | |
1977 | \n\ | |
1978 | Note that the file \"%s\" is read automatically in this way\n\ | |
1979 | when GDB is started."), gdbinit); | |
1980 | c = add_cmd ("source", class_support, source_command, | |
1981 | source_help_text, &cmdlist); | |
1982 | set_cmd_completer (c, filename_completer); | |
1983 | } |