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1 | /* GDB CLI commands. | |
2 | ||
3 | Copyright (C) 2000-2005, 2007-2012 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 "exceptions.h" | |
22 | #include "arch-utils.h" | |
23 | #include "dyn-string.h" | |
24 | #include "readline/readline.h" | |
25 | #include "readline/tilde.h" | |
26 | #include "completer.h" | |
27 | #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */ | |
28 | #include "gdb_wait.h" /* For shell escape implementation. */ | |
29 | #include "gdb_regex.h" /* Used by apropos_command. */ | |
30 | #include "gdb_string.h" | |
31 | #include "gdb_vfork.h" | |
32 | #include "linespec.h" | |
33 | #include "expression.h" | |
34 | #include "frame.h" | |
35 | #include "value.h" | |
36 | #include "language.h" | |
37 | #include "filenames.h" /* For DOSish file names. */ | |
38 | #include "objfiles.h" | |
39 | #include "source.h" | |
40 | #include "disasm.h" | |
41 | #include "tracepoint.h" | |
42 | ||
43 | #include "ui-out.h" | |
44 | ||
45 | #include "top.h" | |
46 | #include "cli/cli-decode.h" | |
47 | #include "cli/cli-script.h" | |
48 | #include "cli/cli-setshow.h" | |
49 | #include "cli/cli-cmds.h" | |
50 | ||
51 | #include "python/python.h" | |
52 | ||
53 | #ifdef TUI | |
54 | #include "tui/tui.h" /* For tui_active et.al. */ | |
55 | #endif | |
56 | ||
57 | #include <fcntl.h> | |
58 | ||
59 | /* Prototypes for local command functions */ | |
60 | ||
61 | static void complete_command (char *, int); | |
62 | ||
63 | static void echo_command (char *, int); | |
64 | ||
65 | static void pwd_command (char *, int); | |
66 | ||
67 | static void show_version (char *, int); | |
68 | ||
69 | static void help_command (char *, int); | |
70 | ||
71 | static void show_command (char *, int); | |
72 | ||
73 | static void info_command (char *, int); | |
74 | ||
75 | static void show_debug (char *, int); | |
76 | ||
77 | static void set_debug (char *, int); | |
78 | ||
79 | static void show_user (char *, int); | |
80 | ||
81 | static void make_command (char *, int); | |
82 | ||
83 | static void shell_escape (char *, int); | |
84 | ||
85 | static void edit_command (char *, int); | |
86 | ||
87 | static void list_command (char *, int); | |
88 | ||
89 | void apropos_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 | 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 toggle subcommands. */ | |
120 | ||
121 | struct cmd_list_element *togglelist; | |
122 | ||
123 | /* Chain containing all defined stop subcommands. */ | |
124 | ||
125 | struct cmd_list_element *stoplist; | |
126 | ||
127 | /* Chain containing all defined delete subcommands. */ | |
128 | ||
129 | struct cmd_list_element *deletelist; | |
130 | ||
131 | /* Chain containing all defined detach subcommands. */ | |
132 | ||
133 | struct cmd_list_element *detachlist; | |
134 | ||
135 | /* Chain containing all defined kill subcommands. */ | |
136 | ||
137 | struct cmd_list_element *killlist; | |
138 | ||
139 | /* Chain containing all defined set subcommands */ | |
140 | ||
141 | struct cmd_list_element *setlist; | |
142 | ||
143 | /* Chain containing all defined unset subcommands */ | |
144 | ||
145 | struct cmd_list_element *unsetlist; | |
146 | ||
147 | /* Chain containing all defined show subcommands. */ | |
148 | ||
149 | struct cmd_list_element *showlist; | |
150 | ||
151 | /* Chain containing all defined \"set history\". */ | |
152 | ||
153 | struct cmd_list_element *sethistlist; | |
154 | ||
155 | /* Chain containing all defined \"show history\". */ | |
156 | ||
157 | struct cmd_list_element *showhistlist; | |
158 | ||
159 | /* Chain containing all defined \"unset history\". */ | |
160 | ||
161 | struct cmd_list_element *unsethistlist; | |
162 | ||
163 | /* Chain containing all defined maintenance subcommands. */ | |
164 | ||
165 | struct cmd_list_element *maintenancelist; | |
166 | ||
167 | /* Chain containing all defined "maintenance info" subcommands. */ | |
168 | ||
169 | struct cmd_list_element *maintenanceinfolist; | |
170 | ||
171 | /* Chain containing all defined "maintenance print" subcommands. */ | |
172 | ||
173 | struct cmd_list_element *maintenanceprintlist; | |
174 | ||
175 | struct cmd_list_element *setprintlist; | |
176 | ||
177 | struct cmd_list_element *showprintlist; | |
178 | ||
179 | struct cmd_list_element *setdebuglist; | |
180 | ||
181 | struct cmd_list_element *showdebuglist; | |
182 | ||
183 | struct cmd_list_element *setchecklist; | |
184 | ||
185 | struct cmd_list_element *showchecklist; | |
186 | ||
187 | /* Command tracing state. */ | |
188 | ||
189 | int source_verbose = 0; | |
190 | int trace_commands = 0; | |
191 | \f | |
192 | /* 'script-extension' option support. */ | |
193 | ||
194 | static const char script_ext_off[] = "off"; | |
195 | static const char script_ext_soft[] = "soft"; | |
196 | static const char script_ext_strict[] = "strict"; | |
197 | ||
198 | static const char *const script_ext_enums[] = { | |
199 | script_ext_off, | |
200 | script_ext_soft, | |
201 | script_ext_strict, | |
202 | NULL | |
203 | }; | |
204 | ||
205 | static const char *script_ext_mode = script_ext_soft; | |
206 | \f | |
207 | /* Utility used everywhere when at least one argument is needed and | |
208 | none is supplied. */ | |
209 | ||
210 | void | |
211 | error_no_arg (char *why) | |
212 | { | |
213 | error (_("Argument required (%s)."), why); | |
214 | } | |
215 | ||
216 | /* The "info" command is defined as a prefix, with allow_unknown = 0. | |
217 | Therefore, its own definition is called only for "info" with no | |
218 | args. */ | |
219 | ||
220 | static void | |
221 | info_command (char *arg, int from_tty) | |
222 | { | |
223 | printf_unfiltered (_("\"info\" must be followed by " | |
224 | "the name of an info command.\n")); | |
225 | help_list (infolist, "info ", -1, gdb_stdout); | |
226 | } | |
227 | ||
228 | /* The "show" command with no arguments shows all the settings. */ | |
229 | ||
230 | static void | |
231 | show_command (char *arg, int from_tty) | |
232 | { | |
233 | cmd_show_list (showlist, from_tty, ""); | |
234 | } | |
235 | \f | |
236 | /* Provide documentation on command or list given by COMMAND. FROM_TTY | |
237 | is ignored. */ | |
238 | ||
239 | static void | |
240 | help_command (char *command, int from_tty) | |
241 | { | |
242 | help_cmd (command, gdb_stdout); | |
243 | } | |
244 | \f | |
245 | /* The "complete" command is used by Emacs to implement completion. */ | |
246 | ||
247 | static void | |
248 | complete_command (char *arg, int from_tty) | |
249 | { | |
250 | int argpoint; | |
251 | char *point, *arg_prefix; | |
252 | VEC (char_ptr) *completions; | |
253 | ||
254 | dont_repeat (); | |
255 | ||
256 | if (arg == NULL) | |
257 | arg = ""; | |
258 | argpoint = strlen (arg); | |
259 | ||
260 | /* complete_line assumes that its first argument is somewhere | |
261 | within, and except for filenames at the beginning of, the word to | |
262 | be completed. The following crude imitation of readline's | |
263 | word-breaking tries to accomodate this. */ | |
264 | point = arg + argpoint; | |
265 | while (point > arg) | |
266 | { | |
267 | if (strchr (rl_completer_word_break_characters, point[-1]) != 0) | |
268 | break; | |
269 | point--; | |
270 | } | |
271 | ||
272 | arg_prefix = alloca (point - arg + 1); | |
273 | memcpy (arg_prefix, arg, point - arg); | |
274 | arg_prefix[point - arg] = 0; | |
275 | ||
276 | completions = complete_line (point, arg, argpoint); | |
277 | ||
278 | if (completions) | |
279 | { | |
280 | int ix, size = VEC_length (char_ptr, completions); | |
281 | char *item, *prev = NULL; | |
282 | ||
283 | qsort (VEC_address (char_ptr, completions), size, | |
284 | sizeof (char *), compare_strings); | |
285 | ||
286 | /* We do extra processing here since we only want to print each | |
287 | unique item once. */ | |
288 | for (ix = 0; VEC_iterate (char_ptr, completions, ix, item); ++ix) | |
289 | { | |
290 | int next_item; | |
291 | ||
292 | if (prev == NULL || strcmp (item, prev) != 0) | |
293 | { | |
294 | printf_unfiltered ("%s%s\n", arg_prefix, item); | |
295 | xfree (prev); | |
296 | prev = item; | |
297 | } | |
298 | else | |
299 | xfree (item); | |
300 | } | |
301 | ||
302 | xfree (prev); | |
303 | VEC_free (char_ptr, completions); | |
304 | } | |
305 | } | |
306 | ||
307 | int | |
308 | is_complete_command (struct cmd_list_element *c) | |
309 | { | |
310 | return cmd_cfunc_eq (c, complete_command); | |
311 | } | |
312 | ||
313 | static void | |
314 | show_version (char *args, int from_tty) | |
315 | { | |
316 | print_gdb_version (gdb_stdout); | |
317 | printf_filtered ("\n"); | |
318 | } | |
319 | ||
320 | /* Handle the quit command. */ | |
321 | ||
322 | void | |
323 | quit_command (char *args, int from_tty) | |
324 | { | |
325 | if (!quit_confirm ()) | |
326 | error (_("Not confirmed.")); | |
327 | ||
328 | disconnect_tracing (from_tty); | |
329 | ||
330 | quit_force (args, from_tty); | |
331 | } | |
332 | ||
333 | static void | |
334 | pwd_command (char *args, int from_tty) | |
335 | { | |
336 | if (args) | |
337 | error (_("The \"pwd\" command does not take an argument: %s"), args); | |
338 | if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf))) | |
339 | error (_("Error finding name of working directory: %s"), | |
340 | safe_strerror (errno)); | |
341 | ||
342 | if (strcmp (gdb_dirbuf, current_directory) != 0) | |
343 | printf_unfiltered (_("Working directory %s\n (canonically %s).\n"), | |
344 | current_directory, gdb_dirbuf); | |
345 | else | |
346 | printf_unfiltered (_("Working directory %s.\n"), current_directory); | |
347 | } | |
348 | ||
349 | void | |
350 | cd_command (char *dir, int from_tty) | |
351 | { | |
352 | int len; | |
353 | /* Found something other than leading repetitions of "/..". */ | |
354 | int found_real_path; | |
355 | char *p; | |
356 | ||
357 | /* If the new directory is absolute, repeat is a no-op; if relative, | |
358 | repeat might be useful but is more likely to be a mistake. */ | |
359 | dont_repeat (); | |
360 | ||
361 | if (dir == 0) | |
362 | dir = "~"; | |
363 | ||
364 | dir = tilde_expand (dir); | |
365 | make_cleanup (xfree, dir); | |
366 | ||
367 | if (chdir (dir) < 0) | |
368 | perror_with_name (dir); | |
369 | ||
370 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
371 | /* There's too much mess with DOSish names like "d:", "d:.", | |
372 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, | |
373 | simply get the canonicalized name of the current directory. */ | |
374 | dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
375 | #endif | |
376 | ||
377 | len = strlen (dir); | |
378 | if (IS_DIR_SEPARATOR (dir[len - 1])) | |
379 | { | |
380 | /* Remove the trailing slash unless this is a root directory | |
381 | (including a drive letter on non-Unix systems). */ | |
382 | if (!(len == 1) /* "/" */ | |
383 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
384 | && !(len == 3 && dir[1] == ':') /* "d:/" */ | |
385 | #endif | |
386 | ) | |
387 | len--; | |
388 | } | |
389 | ||
390 | dir = savestring (dir, len); | |
391 | if (IS_ABSOLUTE_PATH (dir)) | |
392 | current_directory = dir; | |
393 | else | |
394 | { | |
395 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) | |
396 | current_directory = concat (current_directory, dir, (char *)NULL); | |
397 | else | |
398 | current_directory = concat (current_directory, SLASH_STRING, | |
399 | dir, (char *)NULL); | |
400 | xfree (dir); | |
401 | } | |
402 | ||
403 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ | |
404 | ||
405 | found_real_path = 0; | |
406 | for (p = current_directory; *p;) | |
407 | { | |
408 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' | |
409 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) | |
410 | memmove (p, p + 2, strlen (p + 2) + 1); | |
411 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' | |
412 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) | |
413 | { | |
414 | if (found_real_path) | |
415 | { | |
416 | /* Search backwards for the directory just before the "/.." | |
417 | and obliterate it and the "/..". */ | |
418 | char *q = p; | |
419 | ||
420 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) | |
421 | --q; | |
422 | ||
423 | if (q == current_directory) | |
424 | /* current_directory is | |
425 | a relative pathname ("can't happen"--leave it alone). */ | |
426 | ++p; | |
427 | else | |
428 | { | |
429 | memmove (q - 1, p + 3, strlen (p + 3) + 1); | |
430 | p = q - 1; | |
431 | } | |
432 | } | |
433 | else | |
434 | /* We are dealing with leading repetitions of "/..", for | |
435 | example "/../..", which is the Mach super-root. */ | |
436 | p += 3; | |
437 | } | |
438 | else | |
439 | { | |
440 | found_real_path = 1; | |
441 | ++p; | |
442 | } | |
443 | } | |
444 | ||
445 | forget_cached_source_info (); | |
446 | ||
447 | if (from_tty) | |
448 | pwd_command ((char *) 0, 1); | |
449 | } | |
450 | \f | |
451 | /* Show the current value of the 'script-extension' option. */ | |
452 | ||
453 | static void | |
454 | show_script_ext_mode (struct ui_file *file, int from_tty, | |
455 | struct cmd_list_element *c, const char *value) | |
456 | { | |
457 | fprintf_filtered (file, | |
458 | _("Script filename extension recognition is \"%s\".\n"), | |
459 | value); | |
460 | } | |
461 | ||
462 | /* Try to open SCRIPT_FILE. | |
463 | If successful, the full path name is stored in *FULL_PATHP, | |
464 | the stream is stored in *STREAMP, and return 1. | |
465 | The caller is responsible for freeing *FULL_PATHP. | |
466 | If not successful, return 0; errno is set for the last file | |
467 | we tried to open. | |
468 | ||
469 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
470 | search for it in the source search path. | |
471 | ||
472 | NOTE: This calls openp which uses xfullpath to compute the full path | |
473 | instead of gdb_realpath. Symbolic links are not resolved. */ | |
474 | ||
475 | int | |
476 | find_and_open_script (const char *script_file, int search_path, | |
477 | FILE **streamp, char **full_pathp) | |
478 | { | |
479 | char *file; | |
480 | int fd; | |
481 | struct cleanup *old_cleanups; | |
482 | int search_flags = OPF_TRY_CWD_FIRST; | |
483 | ||
484 | file = tilde_expand (script_file); | |
485 | old_cleanups = make_cleanup (xfree, file); | |
486 | ||
487 | if (search_path) | |
488 | search_flags |= OPF_SEARCH_IN_PATH; | |
489 | ||
490 | /* Search for and open 'file' on the search path used for source | |
491 | files. Put the full location in *FULL_PATHP. */ | |
492 | fd = openp (source_path, search_flags, | |
493 | file, O_RDONLY, full_pathp); | |
494 | ||
495 | if (fd == -1) | |
496 | { | |
497 | int save_errno = errno; | |
498 | do_cleanups (old_cleanups); | |
499 | errno = save_errno; | |
500 | return 0; | |
501 | } | |
502 | ||
503 | do_cleanups (old_cleanups); | |
504 | ||
505 | *streamp = fdopen (fd, FOPEN_RT); | |
506 | if (*streamp == NULL) | |
507 | { | |
508 | int save_errno = errno; | |
509 | ||
510 | close (fd); | |
511 | if (full_pathp) | |
512 | xfree (*full_pathp); | |
513 | errno = save_errno; | |
514 | return 0; | |
515 | } | |
516 | ||
517 | return 1; | |
518 | } | |
519 | ||
520 | /* Load script FILE, which has already been opened as STREAM. */ | |
521 | ||
522 | static void | |
523 | source_script_from_stream (FILE *stream, const char *file) | |
524 | { | |
525 | if (script_ext_mode != script_ext_off | |
526 | && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py")) | |
527 | { | |
528 | volatile struct gdb_exception e; | |
529 | ||
530 | TRY_CATCH (e, RETURN_MASK_ERROR) | |
531 | { | |
532 | source_python_script (stream, file); | |
533 | } | |
534 | if (e.reason < 0) | |
535 | { | |
536 | /* Should we fallback to ye olde GDB script mode? */ | |
537 | if (script_ext_mode == script_ext_soft | |
538 | && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR) | |
539 | { | |
540 | fseek (stream, 0, SEEK_SET); | |
541 | script_from_file (stream, (char*) file); | |
542 | } | |
543 | else | |
544 | { | |
545 | /* Nope, just punt. */ | |
546 | throw_exception (e); | |
547 | } | |
548 | } | |
549 | } | |
550 | else | |
551 | script_from_file (stream, file); | |
552 | } | |
553 | ||
554 | /* Worker to perform the "source" command. | |
555 | Load script FILE. | |
556 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
557 | search for it in the source search path. */ | |
558 | ||
559 | static void | |
560 | source_script_with_search (const char *file, int from_tty, int search_path) | |
561 | { | |
562 | FILE *stream; | |
563 | char *full_path; | |
564 | struct cleanup *old_cleanups; | |
565 | ||
566 | if (file == NULL || *file == 0) | |
567 | error (_("source command requires file name of file to source.")); | |
568 | ||
569 | if (!find_and_open_script (file, search_path, &stream, &full_path)) | |
570 | { | |
571 | /* The script wasn't found, or was otherwise inaccessible. | |
572 | If the source command was invoked interactively, throw an | |
573 | error. Otherwise (e.g. if it was invoked by a script), | |
574 | silently ignore the error. */ | |
575 | if (from_tty) | |
576 | perror_with_name (file); | |
577 | else | |
578 | return; | |
579 | } | |
580 | ||
581 | old_cleanups = make_cleanup (xfree, full_path); | |
582 | make_cleanup_fclose (stream); | |
583 | /* The python support reopens the file, so we need to pass full_path here | |
584 | in case the file was found on the search path. It's useful to do this | |
585 | anyway so that error messages show the actual file used. But only do | |
586 | this if we (may have) used search_path, as printing the full path in | |
587 | errors for the non-search case can be more noise than signal. */ | |
588 | source_script_from_stream (stream, search_path ? full_path : file); | |
589 | do_cleanups (old_cleanups); | |
590 | } | |
591 | ||
592 | /* Wrapper around source_script_with_search to export it to main.c | |
593 | for use in loading .gdbinit scripts. */ | |
594 | ||
595 | void | |
596 | source_script (char *file, int from_tty) | |
597 | { | |
598 | source_script_with_search (file, from_tty, 0); | |
599 | } | |
600 | ||
601 | /* Return the source_verbose global variable to its previous state | |
602 | on exit from the source command, by whatever means. */ | |
603 | static void | |
604 | source_verbose_cleanup (void *old_value) | |
605 | { | |
606 | source_verbose = *(int *)old_value; | |
607 | xfree (old_value); | |
608 | } | |
609 | ||
610 | static void | |
611 | source_command (char *args, int from_tty) | |
612 | { | |
613 | struct cleanup *old_cleanups; | |
614 | char *file = args; | |
615 | int *old_source_verbose = xmalloc (sizeof(int)); | |
616 | int search_path = 0; | |
617 | ||
618 | *old_source_verbose = source_verbose; | |
619 | old_cleanups = make_cleanup (source_verbose_cleanup, | |
620 | old_source_verbose); | |
621 | ||
622 | /* -v causes the source command to run in verbose mode. | |
623 | -s causes the file to be searched in the source search path, | |
624 | even if the file name contains a '/'. | |
625 | We still have to be able to handle filenames with spaces in a | |
626 | backward compatible way, so buildargv is not appropriate. */ | |
627 | ||
628 | if (args) | |
629 | { | |
630 | while (args[0] != '\0') | |
631 | { | |
632 | /* Make sure leading white space does not break the | |
633 | comparisons. */ | |
634 | while (isspace(args[0])) | |
635 | args++; | |
636 | ||
637 | if (args[0] != '-') | |
638 | break; | |
639 | ||
640 | if (args[1] == 'v' && isspace (args[2])) | |
641 | { | |
642 | source_verbose = 1; | |
643 | ||
644 | /* Skip passed -v. */ | |
645 | args = &args[3]; | |
646 | } | |
647 | else if (args[1] == 's' && isspace (args[2])) | |
648 | { | |
649 | search_path = 1; | |
650 | ||
651 | /* Skip passed -s. */ | |
652 | args = &args[3]; | |
653 | } | |
654 | else | |
655 | break; | |
656 | } | |
657 | ||
658 | while (isspace (args[0])) | |
659 | args++; | |
660 | file = args; | |
661 | } | |
662 | ||
663 | source_script_with_search (file, from_tty, search_path); | |
664 | ||
665 | do_cleanups (old_cleanups); | |
666 | } | |
667 | ||
668 | ||
669 | static void | |
670 | echo_command (char *text, int from_tty) | |
671 | { | |
672 | char *p = text; | |
673 | int c; | |
674 | ||
675 | if (text) | |
676 | while ((c = *p++) != '\0') | |
677 | { | |
678 | if (c == '\\') | |
679 | { | |
680 | /* \ at end of argument is used after spaces | |
681 | so they won't be lost. */ | |
682 | if (*p == 0) | |
683 | return; | |
684 | ||
685 | c = parse_escape (get_current_arch (), &p); | |
686 | if (c >= 0) | |
687 | printf_filtered ("%c", c); | |
688 | } | |
689 | else | |
690 | printf_filtered ("%c", c); | |
691 | } | |
692 | ||
693 | /* Force this output to appear now. */ | |
694 | wrap_here (""); | |
695 | gdb_flush (gdb_stdout); | |
696 | } | |
697 | ||
698 | static void | |
699 | shell_escape (char *arg, int from_tty) | |
700 | { | |
701 | #if defined(CANT_FORK) || \ | |
702 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) | |
703 | /* If ARG is NULL, they want an inferior shell, but `system' just | |
704 | reports if the shell is available when passed a NULL arg. */ | |
705 | int rc = system (arg ? arg : ""); | |
706 | ||
707 | if (!arg) | |
708 | arg = "inferior shell"; | |
709 | ||
710 | if (rc == -1) | |
711 | { | |
712 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, | |
713 | safe_strerror (errno)); | |
714 | gdb_flush (gdb_stderr); | |
715 | } | |
716 | else if (rc) | |
717 | { | |
718 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); | |
719 | gdb_flush (gdb_stderr); | |
720 | } | |
721 | #ifdef GLOBAL_CURDIR | |
722 | /* Make sure to return to the directory GDB thinks it is, in case | |
723 | the shell command we just ran changed it. */ | |
724 | chdir (current_directory); | |
725 | #endif | |
726 | #else /* Can fork. */ | |
727 | int status, pid; | |
728 | ||
729 | if ((pid = vfork ()) == 0) | |
730 | { | |
731 | const char *p, *user_shell; | |
732 | ||
733 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) | |
734 | user_shell = "/bin/sh"; | |
735 | ||
736 | /* Get the name of the shell for arg0. */ | |
737 | p = lbasename (user_shell); | |
738 | ||
739 | if (!arg) | |
740 | execl (user_shell, p, (char *) 0); | |
741 | else | |
742 | execl (user_shell, p, "-c", arg, (char *) 0); | |
743 | ||
744 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, | |
745 | safe_strerror (errno)); | |
746 | gdb_flush (gdb_stderr); | |
747 | _exit (0177); | |
748 | } | |
749 | ||
750 | if (pid != -1) | |
751 | waitpid (pid, &status, 0); | |
752 | else | |
753 | error (_("Fork failed")); | |
754 | #endif /* Can fork. */ | |
755 | } | |
756 | ||
757 | static void | |
758 | edit_command (char *arg, int from_tty) | |
759 | { | |
760 | struct symtabs_and_lines sals; | |
761 | struct symtab_and_line sal; | |
762 | struct symbol *sym; | |
763 | char *arg1; | |
764 | char *editor; | |
765 | char *p, *fn; | |
766 | ||
767 | /* Pull in the current default source line if necessary. */ | |
768 | if (arg == 0) | |
769 | { | |
770 | set_default_source_symtab_and_line (); | |
771 | sal = get_current_source_symtab_and_line (); | |
772 | } | |
773 | ||
774 | /* Bare "edit" edits file with present line. */ | |
775 | ||
776 | if (arg == 0) | |
777 | { | |
778 | if (sal.symtab == 0) | |
779 | error (_("No default source file yet.")); | |
780 | sal.line += get_lines_to_list () / 2; | |
781 | } | |
782 | else | |
783 | { | |
784 | /* Now should only be one argument -- decode it in SAL. */ | |
785 | ||
786 | arg1 = arg; | |
787 | sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0); | |
788 | ||
789 | filter_sals (&sals); | |
790 | if (! sals.nelts) | |
791 | { | |
792 | /* C++ */ | |
793 | return; | |
794 | } | |
795 | if (sals.nelts > 1) | |
796 | { | |
797 | ambiguous_line_spec (&sals); | |
798 | xfree (sals.sals); | |
799 | return; | |
800 | } | |
801 | ||
802 | sal = sals.sals[0]; | |
803 | xfree (sals.sals); | |
804 | ||
805 | if (*arg1) | |
806 | error (_("Junk at end of line specification.")); | |
807 | ||
808 | /* If line was specified by address, first print exactly which | |
809 | line, and which file. In this case, sal.symtab == 0 means | |
810 | address is outside of all known source files, not that user | |
811 | failed to give a filename. */ | |
812 | if (*arg == '*') | |
813 | { | |
814 | struct gdbarch *gdbarch; | |
815 | ||
816 | if (sal.symtab == 0) | |
817 | /* FIXME-32x64--assumes sal.pc fits in long. */ | |
818 | error (_("No source file for address %s."), | |
819 | hex_string ((unsigned long) sal.pc)); | |
820 | ||
821 | gdbarch = get_objfile_arch (sal.symtab->objfile); | |
822 | sym = find_pc_function (sal.pc); | |
823 | if (sym) | |
824 | printf_filtered ("%s is in %s (%s:%d).\n", | |
825 | paddress (gdbarch, sal.pc), | |
826 | SYMBOL_PRINT_NAME (sym), | |
827 | sal.symtab->filename, sal.line); | |
828 | else | |
829 | printf_filtered ("%s is at %s:%d.\n", | |
830 | paddress (gdbarch, sal.pc), | |
831 | sal.symtab->filename, sal.line); | |
832 | } | |
833 | ||
834 | /* If what was given does not imply a symtab, it must be an | |
835 | undebuggable symbol which means no source code. */ | |
836 | ||
837 | if (sal.symtab == 0) | |
838 | error (_("No line number known for %s."), arg); | |
839 | } | |
840 | ||
841 | if ((editor = (char *) getenv ("EDITOR")) == NULL) | |
842 | editor = "/bin/ex"; | |
843 | ||
844 | /* If we don't already know the full absolute file name of the | |
845 | source file, find it now. */ | |
846 | if (!sal.symtab->fullname) | |
847 | { | |
848 | fn = symtab_to_fullname (sal.symtab); | |
849 | if (!fn) | |
850 | fn = "unknown"; | |
851 | } | |
852 | else | |
853 | fn = sal.symtab->fullname; | |
854 | ||
855 | /* Quote the file name, in case it has whitespace or other special | |
856 | characters. */ | |
857 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); | |
858 | shell_escape (p, from_tty); | |
859 | xfree (p); | |
860 | } | |
861 | ||
862 | static void | |
863 | list_command (char *arg, int from_tty) | |
864 | { | |
865 | struct symtabs_and_lines sals, sals_end; | |
866 | struct symtab_and_line sal = { 0 }; | |
867 | struct symtab_and_line sal_end = { 0 }; | |
868 | struct symtab_and_line cursal = { 0 }; | |
869 | struct symbol *sym; | |
870 | char *arg1; | |
871 | int no_end = 1; | |
872 | int dummy_end = 0; | |
873 | int dummy_beg = 0; | |
874 | int linenum_beg = 0; | |
875 | char *p; | |
876 | ||
877 | /* Pull in the current default source line if necessary. */ | |
878 | if (arg == 0 || arg[0] == '+' || arg[0] == '-') | |
879 | { | |
880 | set_default_source_symtab_and_line (); | |
881 | cursal = get_current_source_symtab_and_line (); | |
882 | } | |
883 | ||
884 | /* "l" or "l +" lists next ten lines. */ | |
885 | ||
886 | if (arg == 0 || strcmp (arg, "+") == 0) | |
887 | { | |
888 | print_source_lines (cursal.symtab, cursal.line, | |
889 | cursal.line + get_lines_to_list (), 0); | |
890 | return; | |
891 | } | |
892 | ||
893 | /* "l -" lists previous ten lines, the ones before the ten just | |
894 | listed. */ | |
895 | if (strcmp (arg, "-") == 0) | |
896 | { | |
897 | print_source_lines (cursal.symtab, | |
898 | max (get_first_line_listed () | |
899 | - get_lines_to_list (), 1), | |
900 | get_first_line_listed (), 0); | |
901 | return; | |
902 | } | |
903 | ||
904 | /* Now if there is only one argument, decode it in SAL | |
905 | and set NO_END. | |
906 | If there are two arguments, decode them in SAL and SAL_END | |
907 | and clear NO_END; however, if one of the arguments is blank, | |
908 | set DUMMY_BEG or DUMMY_END to record that fact. */ | |
909 | ||
910 | if (!have_full_symbols () && !have_partial_symbols ()) | |
911 | error (_("No symbol table is loaded. Use the \"file\" command.")); | |
912 | ||
913 | arg1 = arg; | |
914 | if (*arg1 == ',') | |
915 | dummy_beg = 1; | |
916 | else | |
917 | { | |
918 | sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0); | |
919 | ||
920 | filter_sals (&sals); | |
921 | if (!sals.nelts) | |
922 | return; /* C++ */ | |
923 | if (sals.nelts > 1) | |
924 | { | |
925 | ambiguous_line_spec (&sals); | |
926 | xfree (sals.sals); | |
927 | return; | |
928 | } | |
929 | ||
930 | sal = sals.sals[0]; | |
931 | xfree (sals.sals); | |
932 | } | |
933 | ||
934 | /* Record whether the BEG arg is all digits. */ | |
935 | ||
936 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); | |
937 | linenum_beg = (p == arg1); | |
938 | ||
939 | while (*arg1 == ' ' || *arg1 == '\t') | |
940 | arg1++; | |
941 | if (*arg1 == ',') | |
942 | { | |
943 | no_end = 0; | |
944 | arg1++; | |
945 | while (*arg1 == ' ' || *arg1 == '\t') | |
946 | arg1++; | |
947 | if (*arg1 == 0) | |
948 | dummy_end = 1; | |
949 | else | |
950 | { | |
951 | if (dummy_beg) | |
952 | sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0); | |
953 | else | |
954 | sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, | |
955 | sal.symtab, sal.line); | |
956 | filter_sals (&sals_end); | |
957 | if (sals_end.nelts == 0) | |
958 | return; | |
959 | if (sals_end.nelts > 1) | |
960 | { | |
961 | ambiguous_line_spec (&sals_end); | |
962 | xfree (sals_end.sals); | |
963 | return; | |
964 | } | |
965 | sal_end = sals_end.sals[0]; | |
966 | xfree (sals_end.sals); | |
967 | } | |
968 | } | |
969 | ||
970 | if (*arg1) | |
971 | error (_("Junk at end of line specification.")); | |
972 | ||
973 | if (!no_end && !dummy_beg && !dummy_end | |
974 | && sal.symtab != sal_end.symtab) | |
975 | error (_("Specified start and end are in different files.")); | |
976 | if (dummy_beg && dummy_end) | |
977 | error (_("Two empty args do not say what lines to list.")); | |
978 | ||
979 | /* If line was specified by address, | |
980 | first print exactly which line, and which file. | |
981 | ||
982 | In this case, sal.symtab == 0 means address is outside of all | |
983 | known source files, not that user failed to give a filename. */ | |
984 | if (*arg == '*') | |
985 | { | |
986 | struct gdbarch *gdbarch; | |
987 | ||
988 | if (sal.symtab == 0) | |
989 | /* FIXME-32x64--assumes sal.pc fits in long. */ | |
990 | error (_("No source file for address %s."), | |
991 | hex_string ((unsigned long) sal.pc)); | |
992 | ||
993 | gdbarch = get_objfile_arch (sal.symtab->objfile); | |
994 | sym = find_pc_function (sal.pc); | |
995 | if (sym) | |
996 | printf_filtered ("%s is in %s (%s:%d).\n", | |
997 | paddress (gdbarch, sal.pc), | |
998 | SYMBOL_PRINT_NAME (sym), | |
999 | sal.symtab->filename, sal.line); | |
1000 | else | |
1001 | printf_filtered ("%s is at %s:%d.\n", | |
1002 | paddress (gdbarch, sal.pc), | |
1003 | sal.symtab->filename, sal.line); | |
1004 | } | |
1005 | ||
1006 | /* If line was not specified by just a line number, and it does not | |
1007 | imply a symtab, it must be an undebuggable symbol which means no | |
1008 | source code. */ | |
1009 | ||
1010 | if (!linenum_beg && sal.symtab == 0) | |
1011 | error (_("No line number known for %s."), arg); | |
1012 | ||
1013 | /* If this command is repeated with RET, | |
1014 | turn it into the no-arg variant. */ | |
1015 | ||
1016 | if (from_tty) | |
1017 | *arg = 0; | |
1018 | ||
1019 | if (dummy_beg && sal_end.symtab == 0) | |
1020 | error (_("No default source file yet. Do \"help list\".")); | |
1021 | if (dummy_beg) | |
1022 | print_source_lines (sal_end.symtab, | |
1023 | max (sal_end.line - (get_lines_to_list () - 1), 1), | |
1024 | sal_end.line + 1, 0); | |
1025 | else if (sal.symtab == 0) | |
1026 | error (_("No default source file yet. Do \"help list\".")); | |
1027 | else if (no_end) | |
1028 | { | |
1029 | int first_line = sal.line - get_lines_to_list () / 2; | |
1030 | ||
1031 | if (first_line < 1) first_line = 1; | |
1032 | ||
1033 | print_source_lines (sal.symtab, | |
1034 | first_line, | |
1035 | first_line + get_lines_to_list (), | |
1036 | 0); | |
1037 | } | |
1038 | else | |
1039 | print_source_lines (sal.symtab, sal.line, | |
1040 | (dummy_end | |
1041 | ? sal.line + get_lines_to_list () | |
1042 | : sal_end.line + 1), | |
1043 | 0); | |
1044 | } | |
1045 | ||
1046 | /* Subroutine of disassemble_command to simplify it. | |
1047 | Perform the disassembly. | |
1048 | NAME is the name of the function if known, or NULL. | |
1049 | [LOW,HIGH) are the range of addresses to disassemble. | |
1050 | MIXED is non-zero to print source with the assembler. */ | |
1051 | ||
1052 | static void | |
1053 | print_disassembly (struct gdbarch *gdbarch, const char *name, | |
1054 | CORE_ADDR low, CORE_ADDR high, int flags) | |
1055 | { | |
1056 | #if defined(TUI) | |
1057 | if (!tui_is_window_visible (DISASSEM_WIN)) | |
1058 | #endif | |
1059 | { | |
1060 | printf_filtered ("Dump of assembler code "); | |
1061 | if (name != NULL) | |
1062 | printf_filtered ("for function %s:\n", name); | |
1063 | else | |
1064 | printf_filtered ("from %s to %s:\n", | |
1065 | paddress (gdbarch, low), paddress (gdbarch, high)); | |
1066 | ||
1067 | /* Dump the specified range. */ | |
1068 | gdb_disassembly (gdbarch, current_uiout, 0, flags, -1, low, high); | |
1069 | ||
1070 | printf_filtered ("End of assembler dump.\n"); | |
1071 | gdb_flush (gdb_stdout); | |
1072 | } | |
1073 | #if defined(TUI) | |
1074 | else | |
1075 | { | |
1076 | tui_show_assembly (gdbarch, low); | |
1077 | } | |
1078 | #endif | |
1079 | } | |
1080 | ||
1081 | /* Subroutine of disassemble_command to simplify it. | |
1082 | Print a disassembly of the current function according to FLAGS. */ | |
1083 | ||
1084 | static void | |
1085 | disassemble_current_function (int flags) | |
1086 | { | |
1087 | struct frame_info *frame; | |
1088 | struct gdbarch *gdbarch; | |
1089 | CORE_ADDR low, high, pc; | |
1090 | const char *name; | |
1091 | ||
1092 | frame = get_selected_frame (_("No frame selected.")); | |
1093 | gdbarch = get_frame_arch (frame); | |
1094 | pc = get_frame_pc (frame); | |
1095 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
1096 | error (_("No function contains program counter for selected frame.")); | |
1097 | #if defined(TUI) | |
1098 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
1099 | `tui_version'. */ | |
1100 | if (tui_active) | |
1101 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
1102 | low = tui_get_low_disassembly_address (gdbarch, low, pc); | |
1103 | #endif | |
1104 | low += gdbarch_deprecated_function_start_offset (gdbarch); | |
1105 | ||
1106 | print_disassembly (gdbarch, name, low, high, flags); | |
1107 | } | |
1108 | ||
1109 | /* Dump a specified section of assembly code. | |
1110 | ||
1111 | Usage: | |
1112 | disassemble [/mr] | |
1113 | - dump the assembly code for the function of the current pc | |
1114 | disassemble [/mr] addr | |
1115 | - dump the assembly code for the function at ADDR | |
1116 | disassemble [/mr] low,high | |
1117 | disassemble [/mr] low,+length | |
1118 | - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length) | |
1119 | ||
1120 | A /m modifier will include source code with the assembly. | |
1121 | A /r modifier will include raw instructions in hex with the assembly. */ | |
1122 | ||
1123 | static void | |
1124 | disassemble_command (char *arg, int from_tty) | |
1125 | { | |
1126 | struct gdbarch *gdbarch = get_current_arch (); | |
1127 | CORE_ADDR low, high; | |
1128 | const char *name; | |
1129 | CORE_ADDR pc; | |
1130 | int flags; | |
1131 | ||
1132 | name = NULL; | |
1133 | flags = 0; | |
1134 | ||
1135 | if (arg && *arg == '/') | |
1136 | { | |
1137 | ++arg; | |
1138 | ||
1139 | if (*arg == '\0') | |
1140 | error (_("Missing modifier.")); | |
1141 | ||
1142 | while (*arg && ! isspace (*arg)) | |
1143 | { | |
1144 | switch (*arg++) | |
1145 | { | |
1146 | case 'm': | |
1147 | flags |= DISASSEMBLY_SOURCE; | |
1148 | break; | |
1149 | case 'r': | |
1150 | flags |= DISASSEMBLY_RAW_INSN; | |
1151 | break; | |
1152 | default: | |
1153 | error (_("Invalid disassembly modifier.")); | |
1154 | } | |
1155 | } | |
1156 | ||
1157 | while (isspace (*arg)) | |
1158 | ++arg; | |
1159 | } | |
1160 | ||
1161 | if (! arg || ! *arg) | |
1162 | { | |
1163 | flags |= DISASSEMBLY_OMIT_FNAME; | |
1164 | disassemble_current_function (flags); | |
1165 | return; | |
1166 | } | |
1167 | ||
1168 | pc = value_as_address (parse_to_comma_and_eval (&arg)); | |
1169 | if (arg[0] == ',') | |
1170 | ++arg; | |
1171 | if (arg[0] == '\0') | |
1172 | { | |
1173 | /* One argument. */ | |
1174 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
1175 | error (_("No function contains specified address.")); | |
1176 | #if defined(TUI) | |
1177 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
1178 | `tui_version'. */ | |
1179 | if (tui_active) | |
1180 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
1181 | low = tui_get_low_disassembly_address (gdbarch, low, pc); | |
1182 | #endif | |
1183 | low += gdbarch_deprecated_function_start_offset (gdbarch); | |
1184 | flags |= DISASSEMBLY_OMIT_FNAME; | |
1185 | } | |
1186 | else | |
1187 | { | |
1188 | /* Two arguments. */ | |
1189 | int incl_flag = 0; | |
1190 | low = pc; | |
1191 | while (isspace (*arg)) | |
1192 | arg++; | |
1193 | if (arg[0] == '+') | |
1194 | { | |
1195 | ++arg; | |
1196 | incl_flag = 1; | |
1197 | } | |
1198 | high = parse_and_eval_address (arg); | |
1199 | if (incl_flag) | |
1200 | high += low; | |
1201 | } | |
1202 | ||
1203 | print_disassembly (gdbarch, name, low, high, flags); | |
1204 | } | |
1205 | ||
1206 | static void | |
1207 | make_command (char *arg, int from_tty) | |
1208 | { | |
1209 | char *p; | |
1210 | ||
1211 | if (arg == 0) | |
1212 | p = "make"; | |
1213 | else | |
1214 | { | |
1215 | p = xmalloc (sizeof ("make ") + strlen (arg)); | |
1216 | strcpy (p, "make "); | |
1217 | strcpy (p + sizeof ("make ") - 1, arg); | |
1218 | } | |
1219 | ||
1220 | shell_escape (p, from_tty); | |
1221 | } | |
1222 | ||
1223 | static void | |
1224 | show_user (char *args, int from_tty) | |
1225 | { | |
1226 | struct cmd_list_element *c; | |
1227 | extern struct cmd_list_element *cmdlist; | |
1228 | ||
1229 | if (args) | |
1230 | { | |
1231 | char *comname = args; | |
1232 | ||
1233 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); | |
1234 | /* c->user_commands would be NULL if it's a python command. */ | |
1235 | if (c->class != class_user || !c->user_commands) | |
1236 | error (_("Not a user command.")); | |
1237 | show_user_1 (c, "", args, gdb_stdout); | |
1238 | } | |
1239 | else | |
1240 | { | |
1241 | for (c = cmdlist; c; c = c->next) | |
1242 | { | |
1243 | if (c->class == class_user || c->prefixlist != NULL) | |
1244 | show_user_1 (c, "", c->name, gdb_stdout); | |
1245 | } | |
1246 | } | |
1247 | } | |
1248 | ||
1249 | /* Search through names of commands and documentations for a certain | |
1250 | regular expression. */ | |
1251 | ||
1252 | void | |
1253 | apropos_command (char *searchstr, int from_tty) | |
1254 | { | |
1255 | regex_t pattern; | |
1256 | int code; | |
1257 | ||
1258 | if (searchstr == NULL) | |
1259 | error (_("REGEXP string is empty")); | |
1260 | ||
1261 | code = regcomp (&pattern, searchstr, REG_ICASE); | |
1262 | if (code == 0) | |
1263 | { | |
1264 | struct cleanup *cleanups; | |
1265 | ||
1266 | cleanups = make_regfree_cleanup (&pattern); | |
1267 | apropos_cmd (gdb_stdout, cmdlist, &pattern, ""); | |
1268 | do_cleanups (cleanups); | |
1269 | } | |
1270 | else | |
1271 | { | |
1272 | char *err = get_regcomp_error (code, &pattern); | |
1273 | ||
1274 | make_cleanup (xfree, err); | |
1275 | error (_("Error in regular expression: %s"), err); | |
1276 | } | |
1277 | } | |
1278 | ||
1279 | /* Subroutine of alias_command to simplify it. | |
1280 | Return the first N elements of ARGV flattened back to a string | |
1281 | with a space separating each element. | |
1282 | ARGV may not be NULL. | |
1283 | This does not take care of quoting elements in case they contain spaces | |
1284 | on purpose. */ | |
1285 | ||
1286 | static dyn_string_t | |
1287 | argv_to_dyn_string (char **argv, int n) | |
1288 | { | |
1289 | int i; | |
1290 | dyn_string_t result = dyn_string_new (10); | |
1291 | ||
1292 | gdb_assert (argv != NULL); | |
1293 | gdb_assert (n >= 0 && n <= countargv (argv)); | |
1294 | ||
1295 | for (i = 0; i < n; ++i) | |
1296 | { | |
1297 | if (i > 0) | |
1298 | dyn_string_append_char (result, ' '); | |
1299 | dyn_string_append_cstr (result, argv[i]); | |
1300 | } | |
1301 | ||
1302 | return result; | |
1303 | } | |
1304 | ||
1305 | /* Subroutine of alias_command to simplify it. | |
1306 | Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */ | |
1307 | ||
1308 | static int | |
1309 | valid_command_p (char *command) | |
1310 | { | |
1311 | struct cmd_list_element *c; | |
1312 | ||
1313 | c = lookup_cmd_1 (& command, cmdlist, NULL, 1); | |
1314 | ||
1315 | if (c == NULL || c == (struct cmd_list_element *) -1) | |
1316 | return FALSE; | |
1317 | ||
1318 | /* This is the slightly tricky part. | |
1319 | lookup_cmd_1 will return a pointer to the last part of COMMAND | |
1320 | to match, leaving COMMAND pointing at the remainder. */ | |
1321 | while (*command == ' ' || *command == '\t') | |
1322 | ++command; | |
1323 | return *command == '\0'; | |
1324 | } | |
1325 | ||
1326 | /* Make an alias of an existing command. */ | |
1327 | ||
1328 | static void | |
1329 | alias_command (char *args, int from_tty) | |
1330 | { | |
1331 | int i, alias_argc, command_argc; | |
1332 | int abbrev_flag = 0; | |
1333 | char *args2, *equals, *alias, *command; | |
1334 | char **alias_argv, **command_argv; | |
1335 | dyn_string_t alias_dyn_string, command_dyn_string; | |
1336 | struct cmd_list_element *c; | |
1337 | static const char usage[] = N_("Usage: alias [-a] [--] ALIAS = COMMAND"); | |
1338 | ||
1339 | if (args == NULL || strchr (args, '=') == NULL) | |
1340 | error (_(usage)); | |
1341 | ||
1342 | args2 = xstrdup (args); | |
1343 | make_cleanup (xfree, args2); | |
1344 | equals = strchr (args2, '='); | |
1345 | *equals = '\0'; | |
1346 | alias_argv = gdb_buildargv (args2); | |
1347 | make_cleanup_freeargv (alias_argv); | |
1348 | command_argv = gdb_buildargv (equals + 1); | |
1349 | make_cleanup_freeargv (command_argv); | |
1350 | ||
1351 | for (i = 0; alias_argv[i] != NULL; ) | |
1352 | { | |
1353 | if (strcmp (alias_argv[i], "-a") == 0) | |
1354 | { | |
1355 | ++alias_argv; | |
1356 | abbrev_flag = 1; | |
1357 | } | |
1358 | else if (strcmp (alias_argv[i], "--") == 0) | |
1359 | { | |
1360 | ++alias_argv; | |
1361 | break; | |
1362 | } | |
1363 | else | |
1364 | break; | |
1365 | } | |
1366 | ||
1367 | if (alias_argv[0] == NULL || command_argv[0] == NULL | |
1368 | || *alias_argv[0] == '\0' || *command_argv[0] == '\0') | |
1369 | error (_(usage)); | |
1370 | ||
1371 | for (i = 0; alias_argv[i] != NULL; ++i) | |
1372 | { | |
1373 | if (! valid_user_defined_cmd_name_p (alias_argv[i])) | |
1374 | { | |
1375 | if (i == 0) | |
1376 | error (_("Invalid command name: %s"), alias_argv[i]); | |
1377 | else | |
1378 | error (_("Invalid command element name: %s"), alias_argv[i]); | |
1379 | } | |
1380 | } | |
1381 | ||
1382 | alias_argc = countargv (alias_argv); | |
1383 | command_argc = countargv (command_argv); | |
1384 | ||
1385 | /* COMMAND must exist. | |
1386 | Reconstruct the command to remove any extraneous spaces, | |
1387 | for better error messages. */ | |
1388 | command_dyn_string = argv_to_dyn_string (command_argv, command_argc); | |
1389 | make_cleanup_dyn_string_delete (command_dyn_string); | |
1390 | command = dyn_string_buf (command_dyn_string); | |
1391 | if (! valid_command_p (command)) | |
1392 | error (_("Invalid command to alias to: %s"), command); | |
1393 | ||
1394 | /* ALIAS must not exist. */ | |
1395 | alias_dyn_string = argv_to_dyn_string (alias_argv, alias_argc); | |
1396 | make_cleanup_dyn_string_delete (alias_dyn_string); | |
1397 | alias = dyn_string_buf (alias_dyn_string); | |
1398 | if (valid_command_p (alias)) | |
1399 | error (_("Alias already exists: %s"), alias); | |
1400 | ||
1401 | /* If ALIAS is one word, it is an alias for the entire COMMAND. | |
1402 | Example: alias spe = set print elements | |
1403 | ||
1404 | Otherwise ALIAS and COMMAND must have the same number of words, | |
1405 | and every word except the last must match; and the last word of | |
1406 | ALIAS is made an alias of the last word of COMMAND. | |
1407 | Example: alias set print elms = set pr elem | |
1408 | Note that unambiguous abbreviations are allowed. */ | |
1409 | ||
1410 | if (alias_argc == 1) | |
1411 | { | |
1412 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1413 | add_com_alias (xstrdup (alias_argv[0]), command, class_alias, | |
1414 | abbrev_flag); | |
1415 | } | |
1416 | else | |
1417 | { | |
1418 | dyn_string_t alias_prefix_dyn_string, command_prefix_dyn_string; | |
1419 | char *alias_prefix, *command_prefix; | |
1420 | struct cmd_list_element *c_alias, *c_command; | |
1421 | ||
1422 | if (alias_argc != command_argc) | |
1423 | error (_("Mismatched command length between ALIAS and COMMAND.")); | |
1424 | ||
1425 | /* Create copies of ALIAS and COMMAND without the last word, | |
1426 | and use that to verify the leading elements match. */ | |
1427 | alias_prefix_dyn_string = | |
1428 | argv_to_dyn_string (alias_argv, alias_argc - 1); | |
1429 | make_cleanup_dyn_string_delete (alias_prefix_dyn_string); | |
1430 | command_prefix_dyn_string = | |
1431 | argv_to_dyn_string (alias_argv, command_argc - 1); | |
1432 | make_cleanup_dyn_string_delete (command_prefix_dyn_string); | |
1433 | alias_prefix = dyn_string_buf (alias_prefix_dyn_string); | |
1434 | command_prefix = dyn_string_buf (command_prefix_dyn_string); | |
1435 | ||
1436 | c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1); | |
1437 | /* We've already tried to look up COMMAND. */ | |
1438 | gdb_assert (c_command != NULL | |
1439 | && c_command != (struct cmd_list_element *) -1); | |
1440 | gdb_assert (c_command->prefixlist != NULL); | |
1441 | c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1); | |
1442 | if (c_alias != c_command) | |
1443 | error (_("ALIAS and COMMAND prefixes do not match.")); | |
1444 | ||
1445 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1446 | add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]), | |
1447 | command_argv[command_argc - 1], | |
1448 | class_alias, abbrev_flag, c_command->prefixlist); | |
1449 | } | |
1450 | } | |
1451 | \f | |
1452 | /* Print a list of files and line numbers which a user may choose from | |
1453 | in order to list a function which was specified ambiguously (as | |
1454 | with `list classname::overloadedfuncname', for example). The | |
1455 | vector in SALS provides the filenames and line numbers. */ | |
1456 | ||
1457 | static void | |
1458 | ambiguous_line_spec (struct symtabs_and_lines *sals) | |
1459 | { | |
1460 | int i; | |
1461 | ||
1462 | for (i = 0; i < sals->nelts; ++i) | |
1463 | printf_filtered (_("file: \"%s\", line number: %d\n"), | |
1464 | sals->sals[i].symtab->filename, sals->sals[i].line); | |
1465 | } | |
1466 | ||
1467 | /* Sort function for filter_sals. */ | |
1468 | ||
1469 | static int | |
1470 | compare_symtabs (const void *a, const void *b) | |
1471 | { | |
1472 | const struct symtab_and_line *sala = a; | |
1473 | const struct symtab_and_line *salb = b; | |
1474 | int r; | |
1475 | ||
1476 | if (!sala->symtab->dirname) | |
1477 | { | |
1478 | if (salb->symtab->dirname) | |
1479 | return -1; | |
1480 | } | |
1481 | else if (!salb->symtab->dirname) | |
1482 | { | |
1483 | if (sala->symtab->dirname) | |
1484 | return 1; | |
1485 | } | |
1486 | else | |
1487 | { | |
1488 | r = filename_cmp (sala->symtab->dirname, salb->symtab->dirname); | |
1489 | if (r) | |
1490 | return r; | |
1491 | } | |
1492 | ||
1493 | r = filename_cmp (sala->symtab->filename, salb->symtab->filename); | |
1494 | if (r) | |
1495 | return r; | |
1496 | ||
1497 | if (sala->line < salb->line) | |
1498 | return -1; | |
1499 | return sala->line == salb->line ? 0 : 1; | |
1500 | } | |
1501 | ||
1502 | /* Remove any SALs that do not match the current program space, or | |
1503 | which appear to be "file:line" duplicates. */ | |
1504 | ||
1505 | static void | |
1506 | filter_sals (struct symtabs_and_lines *sals) | |
1507 | { | |
1508 | int i, out, prev; | |
1509 | ||
1510 | out = 0; | |
1511 | for (i = 0; i < sals->nelts; ++i) | |
1512 | { | |
1513 | if (sals->sals[i].pspace == current_program_space | |
1514 | && sals->sals[i].symtab != NULL) | |
1515 | { | |
1516 | sals->sals[out] = sals->sals[i]; | |
1517 | ++out; | |
1518 | } | |
1519 | } | |
1520 | sals->nelts = out; | |
1521 | ||
1522 | qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line), | |
1523 | compare_symtabs); | |
1524 | ||
1525 | out = 1; | |
1526 | prev = 0; | |
1527 | for (i = 1; i < sals->nelts; ++i) | |
1528 | { | |
1529 | if (compare_symtabs (&sals->sals[prev], &sals->sals[i])) | |
1530 | { | |
1531 | /* Symtabs differ. */ | |
1532 | sals->sals[out] = sals->sals[i]; | |
1533 | prev = out; | |
1534 | ++out; | |
1535 | } | |
1536 | } | |
1537 | ||
1538 | if (sals->nelts == 0) | |
1539 | { | |
1540 | xfree (sals->sals); | |
1541 | sals->sals = NULL; | |
1542 | } | |
1543 | else | |
1544 | sals->nelts = out; | |
1545 | } | |
1546 | ||
1547 | static void | |
1548 | set_debug (char *arg, int from_tty) | |
1549 | { | |
1550 | printf_unfiltered (_("\"set debug\" must be followed by " | |
1551 | "the name of a debug subcommand.\n")); | |
1552 | help_list (setdebuglist, "set debug ", -1, gdb_stdout); | |
1553 | } | |
1554 | ||
1555 | static void | |
1556 | show_debug (char *args, int from_tty) | |
1557 | { | |
1558 | cmd_show_list (showdebuglist, from_tty, ""); | |
1559 | } | |
1560 | ||
1561 | void | |
1562 | init_cmd_lists (void) | |
1563 | { | |
1564 | max_user_call_depth = 1024; | |
1565 | ||
1566 | cmdlist = NULL; | |
1567 | infolist = NULL; | |
1568 | enablelist = NULL; | |
1569 | disablelist = NULL; | |
1570 | togglelist = NULL; | |
1571 | stoplist = NULL; | |
1572 | deletelist = NULL; | |
1573 | detachlist = NULL; | |
1574 | setlist = NULL; | |
1575 | unsetlist = NULL; | |
1576 | showlist = NULL; | |
1577 | sethistlist = NULL; | |
1578 | showhistlist = NULL; | |
1579 | unsethistlist = NULL; | |
1580 | maintenancelist = NULL; | |
1581 | maintenanceinfolist = NULL; | |
1582 | maintenanceprintlist = NULL; | |
1583 | setprintlist = NULL; | |
1584 | showprintlist = NULL; | |
1585 | setchecklist = NULL; | |
1586 | showchecklist = NULL; | |
1587 | } | |
1588 | ||
1589 | static void | |
1590 | show_info_verbose (struct ui_file *file, int from_tty, | |
1591 | struct cmd_list_element *c, | |
1592 | const char *value) | |
1593 | { | |
1594 | if (info_verbose) | |
1595 | fprintf_filtered (file, | |
1596 | _("Verbose printing of informational messages is %s.\n"), | |
1597 | value); | |
1598 | else | |
1599 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); | |
1600 | } | |
1601 | ||
1602 | static void | |
1603 | show_history_expansion_p (struct ui_file *file, int from_tty, | |
1604 | struct cmd_list_element *c, const char *value) | |
1605 | { | |
1606 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), | |
1607 | value); | |
1608 | } | |
1609 | ||
1610 | static void | |
1611 | show_baud_rate (struct ui_file *file, int from_tty, | |
1612 | struct cmd_list_element *c, const char *value) | |
1613 | { | |
1614 | fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"), | |
1615 | value); | |
1616 | } | |
1617 | ||
1618 | static void | |
1619 | show_remote_debug (struct ui_file *file, int from_tty, | |
1620 | struct cmd_list_element *c, const char *value) | |
1621 | { | |
1622 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), | |
1623 | value); | |
1624 | } | |
1625 | ||
1626 | static void | |
1627 | show_remote_timeout (struct ui_file *file, int from_tty, | |
1628 | struct cmd_list_element *c, const char *value) | |
1629 | { | |
1630 | fprintf_filtered (file, | |
1631 | _("Timeout limit to wait for target to respond is %s.\n"), | |
1632 | value); | |
1633 | } | |
1634 | ||
1635 | static void | |
1636 | show_max_user_call_depth (struct ui_file *file, int from_tty, | |
1637 | struct cmd_list_element *c, const char *value) | |
1638 | { | |
1639 | fprintf_filtered (file, | |
1640 | _("The max call depth for user-defined commands is %s.\n"), | |
1641 | value); | |
1642 | } | |
1643 | ||
1644 | \f | |
1645 | void | |
1646 | init_cli_cmds (void) | |
1647 | { | |
1648 | struct cmd_list_element *c; | |
1649 | char *source_help_text; | |
1650 | ||
1651 | /* Define the classes of commands. | |
1652 | They will appear in the help list in alphabetical order. */ | |
1653 | ||
1654 | add_cmd ("internals", class_maintenance, NULL, _("\ | |
1655 | Maintenance commands.\n\ | |
1656 | Some gdb commands are provided just for use by gdb maintainers.\n\ | |
1657 | These commands are subject to frequent change, and may not be as\n\ | |
1658 | well documented as user commands."), | |
1659 | &cmdlist); | |
1660 | add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist); | |
1661 | add_cmd ("aliases", class_alias, NULL, | |
1662 | _("Aliases of other commands."), &cmdlist); | |
1663 | add_cmd ("user-defined", class_user, NULL, _("\ | |
1664 | User-defined commands.\n\ | |
1665 | The commands in this class are those defined by the user.\n\ | |
1666 | Use the \"define\" command to define a command."), &cmdlist); | |
1667 | add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist); | |
1668 | if (!dbx_commands) | |
1669 | add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist); | |
1670 | add_cmd ("files", class_files, NULL, _("Specifying and examining files."), | |
1671 | &cmdlist); | |
1672 | add_cmd ("breakpoints", class_breakpoint, NULL, | |
1673 | _("Making program stop at certain points."), &cmdlist); | |
1674 | add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist); | |
1675 | add_cmd ("stack", class_stack, NULL, _("\ | |
1676 | Examining the stack.\n\ | |
1677 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ | |
1678 | counting from zero for the innermost (currently executing) frame.\n\n\ | |
1679 | At any time gdb identifies one frame as the \"selected\" frame.\n\ | |
1680 | Variable lookups are done with respect to the selected frame.\n\ | |
1681 | When the program being debugged stops, gdb selects the innermost frame.\n\ | |
1682 | The commands below can be used to select other frames by number or address."), | |
1683 | &cmdlist); | |
1684 | add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist); | |
1685 | ||
1686 | /* Define general commands. */ | |
1687 | ||
1688 | add_com ("pwd", class_files, pwd_command, _("\ | |
1689 | Print working directory. This is used for your program as well.")); | |
1690 | ||
1691 | c = add_cmd ("cd", class_files, cd_command, _("\ | |
1692 | Set working directory to DIR for debugger and program being debugged.\n\ | |
1693 | The change does not take effect for the program being debugged\n\ | |
1694 | until the next time it is started."), &cmdlist); | |
1695 | set_cmd_completer (c, filename_completer); | |
1696 | ||
1697 | add_com ("echo", class_support, echo_command, _("\ | |
1698 | Print a constant string. Give string as argument.\n\ | |
1699 | C escape sequences may be used in the argument.\n\ | |
1700 | No newline is added at the end of the argument;\n\ | |
1701 | use \"\\n\" if you want a newline to be printed.\n\ | |
1702 | Since leading and trailing whitespace are ignored in command arguments,\n\ | |
1703 | if you want to print some you must use \"\\\" before leading whitespace\n\ | |
1704 | to be printed or after trailing whitespace.")); | |
1705 | add_com ("document", class_support, document_command, _("\ | |
1706 | Document a user-defined command.\n\ | |
1707 | Give command name as argument. Give documentation on following lines.\n\ | |
1708 | End with a line of just \"end\".")); | |
1709 | add_com ("define", class_support, define_command, _("\ | |
1710 | Define a new command name. Command name is argument.\n\ | |
1711 | Definition appears on following lines, one command per line.\n\ | |
1712 | End with a line of just \"end\".\n\ | |
1713 | Use the \"document\" command to give documentation for the new command.\n\ | |
1714 | Commands defined in this way may have up to ten arguments.")); | |
1715 | ||
1716 | source_help_text = xstrprintf (_("\ | |
1717 | Read commands from a file named FILE.\n\ | |
1718 | \n\ | |
1719 | Usage: source [-s] [-v] FILE\n\ | |
1720 | -s: search for the script in the source search path,\n\ | |
1721 | even if FILE contains directories.\n\ | |
1722 | -v: each command in FILE is echoed as it is executed.\n\ | |
1723 | \n\ | |
1724 | Note that the file \"%s\" is read automatically in this way\n\ | |
1725 | when GDB is started."), gdbinit); | |
1726 | c = add_cmd ("source", class_support, source_command, | |
1727 | source_help_text, &cmdlist); | |
1728 | set_cmd_completer (c, filename_completer); | |
1729 | ||
1730 | add_setshow_enum_cmd ("script-extension", class_support, | |
1731 | script_ext_enums, &script_ext_mode, _("\ | |
1732 | Set mode for script filename extension recognition."), _("\ | |
1733 | Show mode for script filename extension recognition."), _("\ | |
1734 | off == no filename extension recognition (all sourced files are GDB scripts)\n\ | |
1735 | soft == evaluate script according to filename extension, fallback to GDB script" | |
1736 | "\n\ | |
1737 | strict == evaluate script according to filename extension, error if not supported" | |
1738 | ), | |
1739 | NULL, | |
1740 | show_script_ext_mode, | |
1741 | &setlist, &showlist); | |
1742 | ||
1743 | add_com ("quit", class_support, quit_command, _("Exit gdb.")); | |
1744 | c = add_com ("help", class_support, help_command, | |
1745 | _("Print list of commands.")); | |
1746 | set_cmd_completer (c, command_completer); | |
1747 | add_com_alias ("q", "quit", class_support, 1); | |
1748 | add_com_alias ("h", "help", class_support, 1); | |
1749 | ||
1750 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ | |
1751 | Set verbosity."), _("\ | |
1752 | Show verbosity."), NULL, | |
1753 | set_verbose, | |
1754 | show_info_verbose, | |
1755 | &setlist, &showlist); | |
1756 | ||
1757 | add_prefix_cmd ("history", class_support, set_history, | |
1758 | _("Generic command for setting command history parameters."), | |
1759 | &sethistlist, "set history ", 0, &setlist); | |
1760 | add_prefix_cmd ("history", class_support, show_history, | |
1761 | _("Generic command for showing command history parameters."), | |
1762 | &showhistlist, "show history ", 0, &showlist); | |
1763 | ||
1764 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ | |
1765 | Set history expansion on command input."), _("\ | |
1766 | Show history expansion on command input."), _("\ | |
1767 | Without an argument, history expansion is enabled."), | |
1768 | NULL, | |
1769 | show_history_expansion_p, | |
1770 | &sethistlist, &showhistlist); | |
1771 | ||
1772 | add_prefix_cmd ("info", class_info, info_command, _("\ | |
1773 | Generic command for showing things about the program being debugged."), | |
1774 | &infolist, "info ", 0, &cmdlist); | |
1775 | add_com_alias ("i", "info", class_info, 1); | |
1776 | add_com_alias ("inf", "info", class_info, 1); | |
1777 | ||
1778 | add_com ("complete", class_obscure, complete_command, | |
1779 | _("List the completions for the rest of the line as a command.")); | |
1780 | ||
1781 | add_prefix_cmd ("show", class_info, show_command, _("\ | |
1782 | Generic command for showing things about the debugger."), | |
1783 | &showlist, "show ", 0, &cmdlist); | |
1784 | /* Another way to get at the same thing. */ | |
1785 | add_info ("set", show_command, _("Show all GDB settings.")); | |
1786 | ||
1787 | add_cmd ("commands", no_set_class, show_commands, _("\ | |
1788 | Show the history of commands you typed.\n\ | |
1789 | You can supply a command number to start with, or a `+' to start after\n\ | |
1790 | the previous command number shown."), | |
1791 | &showlist); | |
1792 | ||
1793 | add_cmd ("version", no_set_class, show_version, | |
1794 | _("Show what version of GDB this is."), &showlist); | |
1795 | ||
1796 | add_com ("while", class_support, while_command, _("\ | |
1797 | Execute nested commands WHILE the conditional expression is non zero.\n\ | |
1798 | The conditional expression must follow the word `while' and must in turn be\n\ | |
1799 | followed by a new line. The nested commands must be entered one per line,\n\ | |
1800 | and should be terminated by the word `end'.")); | |
1801 | ||
1802 | add_com ("if", class_support, if_command, _("\ | |
1803 | Execute nested commands once IF the conditional expression is non zero.\n\ | |
1804 | The conditional expression must follow the word `if' and must in turn be\n\ | |
1805 | followed by a new line. The nested commands must be entered one per line,\n\ | |
1806 | and should be terminated by the word 'else' or `end'. If an else clause\n\ | |
1807 | is used, the same rules apply to its nested commands as to the first ones.")); | |
1808 | ||
1809 | /* If target is open when baud changes, it doesn't take effect until | |
1810 | the next open (I think, not sure). */ | |
1811 | add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\ | |
1812 | Set baud rate for remote serial I/O."), _("\ | |
1813 | Show baud rate for remote serial I/O."), _("\ | |
1814 | This value is used to set the speed of the serial port when debugging\n\ | |
1815 | using remote targets."), | |
1816 | NULL, | |
1817 | show_baud_rate, | |
1818 | &setlist, &showlist); | |
1819 | ||
1820 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ | |
1821 | Set debugging of remote protocol."), _("\ | |
1822 | Show debugging of remote protocol."), _("\ | |
1823 | When enabled, each packet sent or received with the remote target\n\ | |
1824 | is displayed."), | |
1825 | NULL, | |
1826 | show_remote_debug, | |
1827 | &setdebuglist, &showdebuglist); | |
1828 | ||
1829 | add_setshow_integer_cmd ("remotetimeout", no_class, &remote_timeout, _("\ | |
1830 | Set timeout limit to wait for target to respond."), _("\ | |
1831 | Show timeout limit to wait for target to respond."), _("\ | |
1832 | This value is used to set the time limit for gdb to wait for a response\n\ | |
1833 | from the target."), | |
1834 | NULL, | |
1835 | show_remote_timeout, | |
1836 | &setlist, &showlist); | |
1837 | ||
1838 | add_prefix_cmd ("debug", no_class, set_debug, | |
1839 | _("Generic command for setting gdb debugging flags"), | |
1840 | &setdebuglist, "set debug ", 0, &setlist); | |
1841 | ||
1842 | add_prefix_cmd ("debug", no_class, show_debug, | |
1843 | _("Generic command for showing gdb debugging flags"), | |
1844 | &showdebuglist, "show debug ", 0, &showlist); | |
1845 | ||
1846 | c = add_com ("shell", class_support, shell_escape, _("\ | |
1847 | Execute the rest of the line as a shell command.\n\ | |
1848 | With no arguments, run an inferior shell.")); | |
1849 | set_cmd_completer (c, filename_completer); | |
1850 | ||
1851 | c = add_com ("edit", class_files, edit_command, _("\ | |
1852 | Edit specified file or function.\n\ | |
1853 | With no argument, edits file containing most recent line listed.\n\ | |
1854 | Editing targets can be specified in these ways:\n\ | |
1855 | FILE:LINENUM, to edit at that line in that file,\n\ | |
1856 | FUNCTION, to edit at the beginning of that function,\n\ | |
1857 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1858 | *ADDRESS, to edit at the line containing that address.\n\ | |
1859 | Uses EDITOR environment variable contents as editor (or ex as default).")); | |
1860 | ||
1861 | c->completer = location_completer; | |
1862 | ||
1863 | add_com ("list", class_files, list_command, _("\ | |
1864 | List specified function or line.\n\ | |
1865 | With no argument, lists ten more lines after or around previous listing.\n\ | |
1866 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ | |
1867 | One argument specifies a line, and ten lines are listed around that line.\n\ | |
1868 | Two arguments with comma between specify starting and ending lines to list.\n\ | |
1869 | Lines can be specified in these ways:\n\ | |
1870 | LINENUM, to list around that line in current file,\n\ | |
1871 | FILE:LINENUM, to list around that line in that file,\n\ | |
1872 | FUNCTION, to list around beginning of that function,\n\ | |
1873 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1874 | *ADDRESS, to list around the line containing that address.\n\ | |
1875 | With two args if one is empty it stands for ten lines away from \ | |
1876 | the other arg.")); | |
1877 | ||
1878 | if (!xdb_commands) | |
1879 | add_com_alias ("l", "list", class_files, 1); | |
1880 | else | |
1881 | add_com_alias ("v", "list", class_files, 1); | |
1882 | ||
1883 | if (dbx_commands) | |
1884 | add_com_alias ("file", "list", class_files, 1); | |
1885 | ||
1886 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ | |
1887 | Disassemble a specified section of memory.\n\ | |
1888 | Default is the function surrounding the pc of the selected frame.\n\ | |
1889 | With a /m modifier, source lines are included (if available).\n\ | |
1890 | With a /r modifier, raw instructions in hex are included.\n\ | |
1891 | With a single argument, the function surrounding that address is dumped.\n\ | |
1892 | Two arguments (separated by a comma) are taken as a range of memory to dump,\n\ | |
1893 | in the form of \"start,end\", or \"start,+length\".")); | |
1894 | set_cmd_completer (c, location_completer); | |
1895 | if (xdb_commands) | |
1896 | add_com_alias ("va", "disassemble", class_xdb, 0); | |
1897 | ||
1898 | add_com_alias ("!", "shell", class_support, 0); | |
1899 | ||
1900 | c = add_com ("make", class_support, make_command, _("\ | |
1901 | Run the ``make'' program using the rest of the line as arguments.")); | |
1902 | set_cmd_completer (c, filename_completer); | |
1903 | add_cmd ("user", no_class, show_user, _("\ | |
1904 | Show definitions of non-python user defined commands.\n\ | |
1905 | Argument is the name of the user defined command.\n\ | |
1906 | With no argument, show definitions of all user defined commands."), &showlist); | |
1907 | add_com ("apropos", class_support, apropos_command, | |
1908 | _("Search for commands matching a REGEXP")); | |
1909 | ||
1910 | add_setshow_integer_cmd ("max-user-call-depth", no_class, | |
1911 | &max_user_call_depth, _("\ | |
1912 | Set the max call depth for non-python user-defined commands."), _("\ | |
1913 | Show the max call depth for non-python user-defined commands."), NULL, | |
1914 | NULL, | |
1915 | show_max_user_call_depth, | |
1916 | &setlist, &showlist); | |
1917 | ||
1918 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ | |
1919 | Set tracing of GDB CLI commands."), _("\ | |
1920 | Show state of GDB CLI command tracing."), _("\ | |
1921 | When 'on', each command is displayed as it is executed."), | |
1922 | NULL, | |
1923 | NULL, | |
1924 | &setlist, &showlist); | |
1925 | ||
1926 | c = add_com ("alias", class_support, alias_command, _("\ | |
1927 | Define a new command that is an alias of an existing command.\n\ | |
1928 | Usage: alias [-a] [--] ALIAS = COMMAND\n\ | |
1929 | ALIAS is the name of the alias command to create.\n\ | |
1930 | COMMAND is the command being aliased to.\n\ | |
1931 | If \"-a\" is specified, the command is an abbreviation,\n\ | |
1932 | and will not appear in help command list output.\n\ | |
1933 | \n\ | |
1934 | Examples:\n\ | |
1935 | Make \"spe\" an alias of \"set print elements\":\n\ | |
1936 | alias spe = set print elements\n\ | |
1937 | Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\ | |
1938 | alias -a set print elms = set print elements")); | |
1939 | } |