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1 | /* GDB CLI commands. | |
2 | ||
3 | Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009 | |
4 | Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include "defs.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_string.h" | |
29 | #include "gdb_vfork.h" | |
30 | #include "linespec.h" | |
31 | #include "expression.h" | |
32 | #include "frame.h" | |
33 | #include "value.h" | |
34 | #include "language.h" | |
35 | #include "filenames.h" /* for DOSish file names */ | |
36 | #include "objfiles.h" | |
37 | #include "source.h" | |
38 | #include "disasm.h" | |
39 | ||
40 | #include "ui-out.h" | |
41 | ||
42 | #include "top.h" | |
43 | #include "cli/cli-decode.h" | |
44 | #include "cli/cli-script.h" | |
45 | #include "cli/cli-setshow.h" | |
46 | #include "cli/cli-cmds.h" | |
47 | ||
48 | #ifdef TUI | |
49 | #include "tui/tui.h" /* For tui_active et.al. */ | |
50 | #endif | |
51 | ||
52 | #include <fcntl.h> | |
53 | ||
54 | /* Prototypes for local command functions */ | |
55 | ||
56 | static void complete_command (char *, int); | |
57 | ||
58 | static void echo_command (char *, int); | |
59 | ||
60 | static void pwd_command (char *, int); | |
61 | ||
62 | static void show_version (char *, int); | |
63 | ||
64 | static void help_command (char *, int); | |
65 | ||
66 | static void show_command (char *, int); | |
67 | ||
68 | static void info_command (char *, int); | |
69 | ||
70 | static void show_debug (char *, int); | |
71 | ||
72 | static void set_debug (char *, int); | |
73 | ||
74 | static void show_user (char *, int); | |
75 | ||
76 | static void make_command (char *, int); | |
77 | ||
78 | static void shell_escape (char *, int); | |
79 | ||
80 | static void edit_command (char *, int); | |
81 | ||
82 | static void list_command (char *, int); | |
83 | ||
84 | void apropos_command (char *, int); | |
85 | ||
86 | /* Prototypes for local utility functions */ | |
87 | ||
88 | static void ambiguous_line_spec (struct symtabs_and_lines *); | |
89 | \f | |
90 | /* Limit the call depth of user-defined commands */ | |
91 | int max_user_call_depth; | |
92 | ||
93 | /* Define all cmd_list_elements. */ | |
94 | ||
95 | /* Chain containing all defined commands. */ | |
96 | ||
97 | struct cmd_list_element *cmdlist; | |
98 | ||
99 | /* Chain containing all defined info subcommands. */ | |
100 | ||
101 | struct cmd_list_element *infolist; | |
102 | ||
103 | /* Chain containing all defined enable subcommands. */ | |
104 | ||
105 | struct cmd_list_element *enablelist; | |
106 | ||
107 | /* Chain containing all defined disable subcommands. */ | |
108 | ||
109 | struct cmd_list_element *disablelist; | |
110 | ||
111 | /* Chain containing all defined toggle subcommands. */ | |
112 | ||
113 | struct cmd_list_element *togglelist; | |
114 | ||
115 | /* Chain containing all defined stop subcommands. */ | |
116 | ||
117 | struct cmd_list_element *stoplist; | |
118 | ||
119 | /* Chain containing all defined delete subcommands. */ | |
120 | ||
121 | struct cmd_list_element *deletelist; | |
122 | ||
123 | /* Chain containing all defined detach subcommands. */ | |
124 | ||
125 | struct cmd_list_element *detachlist; | |
126 | ||
127 | /* Chain containing all defined "enable breakpoint" subcommands. */ | |
128 | ||
129 | struct cmd_list_element *enablebreaklist; | |
130 | ||
131 | /* Chain containing all defined set subcommands */ | |
132 | ||
133 | struct cmd_list_element *setlist; | |
134 | ||
135 | /* Chain containing all defined unset subcommands */ | |
136 | ||
137 | struct cmd_list_element *unsetlist; | |
138 | ||
139 | /* Chain containing all defined show subcommands. */ | |
140 | ||
141 | struct cmd_list_element *showlist; | |
142 | ||
143 | /* Chain containing all defined \"set history\". */ | |
144 | ||
145 | struct cmd_list_element *sethistlist; | |
146 | ||
147 | /* Chain containing all defined \"show history\". */ | |
148 | ||
149 | struct cmd_list_element *showhistlist; | |
150 | ||
151 | /* Chain containing all defined \"unset history\". */ | |
152 | ||
153 | struct cmd_list_element *unsethistlist; | |
154 | ||
155 | /* Chain containing all defined maintenance subcommands. */ | |
156 | ||
157 | struct cmd_list_element *maintenancelist; | |
158 | ||
159 | /* Chain containing all defined "maintenance info" subcommands. */ | |
160 | ||
161 | struct cmd_list_element *maintenanceinfolist; | |
162 | ||
163 | /* Chain containing all defined "maintenance print" subcommands. */ | |
164 | ||
165 | struct cmd_list_element *maintenanceprintlist; | |
166 | ||
167 | struct cmd_list_element *setprintlist; | |
168 | ||
169 | struct cmd_list_element *showprintlist; | |
170 | ||
171 | struct cmd_list_element *setdebuglist; | |
172 | ||
173 | struct cmd_list_element *showdebuglist; | |
174 | ||
175 | struct cmd_list_element *setchecklist; | |
176 | ||
177 | struct cmd_list_element *showchecklist; | |
178 | ||
179 | /* Command tracing state. */ | |
180 | ||
181 | int source_verbose = 0; | |
182 | int trace_commands = 0; | |
183 | \f | |
184 | /* Utility used everywhere when at least one argument is needed and | |
185 | none is supplied. */ | |
186 | ||
187 | void | |
188 | error_no_arg (char *why) | |
189 | { | |
190 | error (_("Argument required (%s)."), why); | |
191 | } | |
192 | ||
193 | /* The "info" command is defined as a prefix, with allow_unknown = 0. | |
194 | Therefore, its own definition is called only for "info" with no args. */ | |
195 | ||
196 | static void | |
197 | info_command (char *arg, int from_tty) | |
198 | { | |
199 | printf_unfiltered (_("\"info\" must be followed by the name of an info command.\n")); | |
200 | help_list (infolist, "info ", -1, gdb_stdout); | |
201 | } | |
202 | ||
203 | /* The "show" command with no arguments shows all the settings. */ | |
204 | ||
205 | static void | |
206 | show_command (char *arg, int from_tty) | |
207 | { | |
208 | cmd_show_list (showlist, from_tty, ""); | |
209 | } | |
210 | \f | |
211 | /* Provide documentation on command or list given by COMMAND. FROM_TTY | |
212 | is ignored. */ | |
213 | ||
214 | static void | |
215 | help_command (char *command, int from_tty) | |
216 | { | |
217 | help_cmd (command, gdb_stdout); | |
218 | } | |
219 | \f | |
220 | /* String compare function for qsort. */ | |
221 | static int | |
222 | compare_strings (const void *arg1, const void *arg2) | |
223 | { | |
224 | const char **s1 = (const char **) arg1; | |
225 | const char **s2 = (const char **) arg2; | |
226 | return strcmp (*s1, *s2); | |
227 | } | |
228 | ||
229 | /* The "complete" command is used by Emacs to implement completion. */ | |
230 | ||
231 | static void | |
232 | complete_command (char *arg, int from_tty) | |
233 | { | |
234 | int i; | |
235 | int argpoint; | |
236 | char **completions, *point, *arg_prefix; | |
237 | ||
238 | dont_repeat (); | |
239 | ||
240 | if (arg == NULL) | |
241 | arg = ""; | |
242 | argpoint = strlen (arg); | |
243 | ||
244 | /* complete_line assumes that its first argument is somewhere within, | |
245 | and except for filenames at the beginning of, the word to be completed. | |
246 | The following crude imitation of readline's word-breaking tries to | |
247 | accomodate this. */ | |
248 | point = arg + argpoint; | |
249 | while (point > arg) | |
250 | { | |
251 | if (strchr (rl_completer_word_break_characters, point[-1]) != 0) | |
252 | break; | |
253 | point--; | |
254 | } | |
255 | ||
256 | arg_prefix = alloca (point - arg + 1); | |
257 | memcpy (arg_prefix, arg, point - arg); | |
258 | arg_prefix[point - arg] = 0; | |
259 | ||
260 | completions = complete_line (point, arg, argpoint); | |
261 | ||
262 | if (completions) | |
263 | { | |
264 | int item, size; | |
265 | ||
266 | for (size = 0; completions[size]; ++size) | |
267 | ; | |
268 | qsort (completions, size, sizeof (char *), compare_strings); | |
269 | ||
270 | /* We do extra processing here since we only want to print each | |
271 | unique item once. */ | |
272 | item = 0; | |
273 | while (item < size) | |
274 | { | |
275 | int next_item; | |
276 | printf_unfiltered ("%s%s\n", arg_prefix, completions[item]); | |
277 | next_item = item + 1; | |
278 | while (next_item < size | |
279 | && ! strcmp (completions[item], completions[next_item])) | |
280 | { | |
281 | xfree (completions[next_item]); | |
282 | ++next_item; | |
283 | } | |
284 | ||
285 | xfree (completions[item]); | |
286 | item = next_item; | |
287 | } | |
288 | ||
289 | xfree (completions); | |
290 | } | |
291 | } | |
292 | ||
293 | int | |
294 | is_complete_command (struct cmd_list_element *c) | |
295 | { | |
296 | return cmd_cfunc_eq (c, complete_command); | |
297 | } | |
298 | ||
299 | static void | |
300 | show_version (char *args, int from_tty) | |
301 | { | |
302 | immediate_quit++; | |
303 | print_gdb_version (gdb_stdout); | |
304 | printf_filtered ("\n"); | |
305 | immediate_quit--; | |
306 | } | |
307 | ||
308 | /* Handle the quit command. */ | |
309 | ||
310 | void | |
311 | quit_command (char *args, int from_tty) | |
312 | { | |
313 | if (!quit_confirm ()) | |
314 | error (_("Not confirmed.")); | |
315 | quit_force (args, from_tty); | |
316 | } | |
317 | ||
318 | static void | |
319 | pwd_command (char *args, int from_tty) | |
320 | { | |
321 | if (args) | |
322 | error (_("The \"pwd\" command does not take an argument: %s"), args); | |
323 | if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf))) | |
324 | error (_("Error finding name of working directory: %s"), | |
325 | safe_strerror (errno)); | |
326 | ||
327 | if (strcmp (gdb_dirbuf, current_directory) != 0) | |
328 | printf_unfiltered (_("Working directory %s\n (canonically %s).\n"), | |
329 | current_directory, gdb_dirbuf); | |
330 | else | |
331 | printf_unfiltered (_("Working directory %s.\n"), current_directory); | |
332 | } | |
333 | ||
334 | void | |
335 | cd_command (char *dir, int from_tty) | |
336 | { | |
337 | int len; | |
338 | /* Found something other than leading repetitions of "/..". */ | |
339 | int found_real_path; | |
340 | char *p; | |
341 | ||
342 | /* If the new directory is absolute, repeat is a no-op; if relative, | |
343 | repeat might be useful but is more likely to be a mistake. */ | |
344 | dont_repeat (); | |
345 | ||
346 | if (dir == 0) | |
347 | error_no_arg (_("new working directory")); | |
348 | ||
349 | dir = tilde_expand (dir); | |
350 | make_cleanup (xfree, dir); | |
351 | ||
352 | if (chdir (dir) < 0) | |
353 | perror_with_name (dir); | |
354 | ||
355 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
356 | /* There's too much mess with DOSish names like "d:", "d:.", | |
357 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, | |
358 | simply get the canonicalized name of the current directory. */ | |
359 | dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
360 | #endif | |
361 | ||
362 | len = strlen (dir); | |
363 | if (IS_DIR_SEPARATOR (dir[len - 1])) | |
364 | { | |
365 | /* Remove the trailing slash unless this is a root directory | |
366 | (including a drive letter on non-Unix systems). */ | |
367 | if (!(len == 1) /* "/" */ | |
368 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
369 | && !(len == 3 && dir[1] == ':') /* "d:/" */ | |
370 | #endif | |
371 | ) | |
372 | len--; | |
373 | } | |
374 | ||
375 | dir = savestring (dir, len); | |
376 | if (IS_ABSOLUTE_PATH (dir)) | |
377 | current_directory = dir; | |
378 | else | |
379 | { | |
380 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) | |
381 | current_directory = concat (current_directory, dir, (char *)NULL); | |
382 | else | |
383 | current_directory = concat (current_directory, SLASH_STRING, | |
384 | dir, (char *)NULL); | |
385 | xfree (dir); | |
386 | } | |
387 | ||
388 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ | |
389 | ||
390 | found_real_path = 0; | |
391 | for (p = current_directory; *p;) | |
392 | { | |
393 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' | |
394 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) | |
395 | strcpy (p, p + 2); | |
396 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' | |
397 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) | |
398 | { | |
399 | if (found_real_path) | |
400 | { | |
401 | /* Search backwards for the directory just before the "/.." | |
402 | and obliterate it and the "/..". */ | |
403 | char *q = p; | |
404 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) | |
405 | --q; | |
406 | ||
407 | if (q == current_directory) | |
408 | /* current_directory is | |
409 | a relative pathname ("can't happen"--leave it alone). */ | |
410 | ++p; | |
411 | else | |
412 | { | |
413 | strcpy (q - 1, p + 3); | |
414 | p = q - 1; | |
415 | } | |
416 | } | |
417 | else | |
418 | /* We are dealing with leading repetitions of "/..", for example | |
419 | "/../..", which is the Mach super-root. */ | |
420 | p += 3; | |
421 | } | |
422 | else | |
423 | { | |
424 | found_real_path = 1; | |
425 | ++p; | |
426 | } | |
427 | } | |
428 | ||
429 | forget_cached_source_info (); | |
430 | ||
431 | if (from_tty) | |
432 | pwd_command ((char *) 0, 1); | |
433 | } | |
434 | \f | |
435 | void | |
436 | source_script (char *file, int from_tty) | |
437 | { | |
438 | FILE *stream; | |
439 | struct cleanup *old_cleanups; | |
440 | char *full_pathname = NULL; | |
441 | int fd; | |
442 | ||
443 | if (file == NULL || *file == 0) | |
444 | { | |
445 | error (_("source command requires file name of file to source.")); | |
446 | } | |
447 | ||
448 | file = tilde_expand (file); | |
449 | old_cleanups = make_cleanup (xfree, file); | |
450 | ||
451 | /* Search for and open 'file' on the search path used for source | |
452 | files. Put the full location in 'full_pathname'. */ | |
453 | fd = openp (source_path, OPF_TRY_CWD_FIRST, | |
454 | file, O_RDONLY, 0, &full_pathname); | |
455 | make_cleanup (xfree, full_pathname); | |
456 | ||
457 | /* Use the full path name, if it is found. */ | |
458 | if (full_pathname != NULL && fd != -1) | |
459 | { | |
460 | file = full_pathname; | |
461 | } | |
462 | ||
463 | if (fd == -1) | |
464 | { | |
465 | if (from_tty) | |
466 | perror_with_name (file); | |
467 | else | |
468 | { | |
469 | do_cleanups (old_cleanups); | |
470 | return; | |
471 | } | |
472 | } | |
473 | ||
474 | stream = fdopen (fd, FOPEN_RT); | |
475 | script_from_file (stream, file); | |
476 | ||
477 | do_cleanups (old_cleanups); | |
478 | } | |
479 | ||
480 | /* Return the source_verbose global variable to its previous state | |
481 | on exit from the source command, by whatever means. */ | |
482 | static void | |
483 | source_verbose_cleanup (void *old_value) | |
484 | { | |
485 | source_verbose = *(int *)old_value; | |
486 | xfree (old_value); | |
487 | } | |
488 | ||
489 | static void | |
490 | source_command (char *args, int from_tty) | |
491 | { | |
492 | struct cleanup *old_cleanups; | |
493 | char *file = args; | |
494 | int *old_source_verbose = xmalloc (sizeof(int)); | |
495 | ||
496 | *old_source_verbose = source_verbose; | |
497 | old_cleanups = make_cleanup (source_verbose_cleanup, old_source_verbose); | |
498 | ||
499 | /* -v causes the source command to run in verbose mode. | |
500 | We still have to be able to handle filenames with spaces in a | |
501 | backward compatible way, so buildargv is not appropriate. */ | |
502 | ||
503 | if (args) | |
504 | { | |
505 | /* Make sure leading white space does not break the comparisons. */ | |
506 | while (isspace(args[0])) | |
507 | args++; | |
508 | ||
509 | /* Is -v the first thing in the string? */ | |
510 | if (args[0] == '-' && args[1] == 'v' && isspace (args[2])) | |
511 | { | |
512 | source_verbose = 1; | |
513 | ||
514 | /* Trim -v and whitespace from the filename. */ | |
515 | file = &args[3]; | |
516 | while (isspace (file[0])) | |
517 | file++; | |
518 | } | |
519 | } | |
520 | ||
521 | source_script (file, from_tty); | |
522 | } | |
523 | ||
524 | ||
525 | static void | |
526 | echo_command (char *text, int from_tty) | |
527 | { | |
528 | char *p = text; | |
529 | int c; | |
530 | ||
531 | if (text) | |
532 | while ((c = *p++) != '\0') | |
533 | { | |
534 | if (c == '\\') | |
535 | { | |
536 | /* \ at end of argument is used after spaces | |
537 | so they won't be lost. */ | |
538 | if (*p == 0) | |
539 | return; | |
540 | ||
541 | c = parse_escape (&p); | |
542 | if (c >= 0) | |
543 | printf_filtered ("%c", c); | |
544 | } | |
545 | else | |
546 | printf_filtered ("%c", c); | |
547 | } | |
548 | ||
549 | /* Force this output to appear now. */ | |
550 | wrap_here (""); | |
551 | gdb_flush (gdb_stdout); | |
552 | } | |
553 | ||
554 | static void | |
555 | shell_escape (char *arg, int from_tty) | |
556 | { | |
557 | #if defined(CANT_FORK) || \ | |
558 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) | |
559 | /* If ARG is NULL, they want an inferior shell, but `system' just | |
560 | reports if the shell is available when passed a NULL arg. */ | |
561 | int rc = system (arg ? arg : ""); | |
562 | ||
563 | if (!arg) | |
564 | arg = "inferior shell"; | |
565 | ||
566 | if (rc == -1) | |
567 | { | |
568 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, | |
569 | safe_strerror (errno)); | |
570 | gdb_flush (gdb_stderr); | |
571 | } | |
572 | else if (rc) | |
573 | { | |
574 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); | |
575 | gdb_flush (gdb_stderr); | |
576 | } | |
577 | #ifdef GLOBAL_CURDIR | |
578 | /* Make sure to return to the directory GDB thinks it is, in case the | |
579 | shell command we just ran changed it. */ | |
580 | chdir (current_directory); | |
581 | #endif | |
582 | #else /* Can fork. */ | |
583 | int rc, status, pid; | |
584 | ||
585 | if ((pid = vfork ()) == 0) | |
586 | { | |
587 | char *p, *user_shell; | |
588 | ||
589 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) | |
590 | user_shell = "/bin/sh"; | |
591 | ||
592 | /* Get the name of the shell for arg0 */ | |
593 | if ((p = strrchr (user_shell, '/')) == NULL) | |
594 | p = user_shell; | |
595 | else | |
596 | p++; /* Get past '/' */ | |
597 | ||
598 | if (!arg) | |
599 | execl (user_shell, p, (char *) 0); | |
600 | else | |
601 | execl (user_shell, p, "-c", arg, (char *) 0); | |
602 | ||
603 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, | |
604 | safe_strerror (errno)); | |
605 | gdb_flush (gdb_stderr); | |
606 | _exit (0177); | |
607 | } | |
608 | ||
609 | if (pid != -1) | |
610 | while ((rc = wait (&status)) != pid && rc != -1) | |
611 | ; | |
612 | else | |
613 | error (_("Fork failed")); | |
614 | #endif /* Can fork. */ | |
615 | } | |
616 | ||
617 | static void | |
618 | edit_command (char *arg, int from_tty) | |
619 | { | |
620 | struct symtabs_and_lines sals; | |
621 | struct symtab_and_line sal; | |
622 | struct symbol *sym; | |
623 | char *arg1; | |
624 | char *editor; | |
625 | char *p, *fn; | |
626 | ||
627 | /* Pull in the current default source line if necessary. */ | |
628 | if (arg == 0) | |
629 | { | |
630 | set_default_source_symtab_and_line (); | |
631 | sal = get_current_source_symtab_and_line (); | |
632 | } | |
633 | ||
634 | /* bare "edit" edits file with present line. */ | |
635 | ||
636 | if (arg == 0) | |
637 | { | |
638 | if (sal.symtab == 0) | |
639 | error (_("No default source file yet.")); | |
640 | sal.line += get_lines_to_list () / 2; | |
641 | } | |
642 | else | |
643 | { | |
644 | ||
645 | /* Now should only be one argument -- decode it in SAL. */ | |
646 | ||
647 | arg1 = arg; | |
648 | sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0); | |
649 | ||
650 | if (! sals.nelts) | |
651 | { | |
652 | /* C++ */ | |
653 | return; | |
654 | } | |
655 | if (sals.nelts > 1) | |
656 | { | |
657 | ambiguous_line_spec (&sals); | |
658 | xfree (sals.sals); | |
659 | return; | |
660 | } | |
661 | ||
662 | sal = sals.sals[0]; | |
663 | xfree (sals.sals); | |
664 | ||
665 | if (*arg1) | |
666 | error (_("Junk at end of line specification.")); | |
667 | ||
668 | /* If line was specified by address, | |
669 | first print exactly which line, and which file. | |
670 | In this case, sal.symtab == 0 means address is outside | |
671 | of all known source files, not that user failed to give a filename. */ | |
672 | if (*arg == '*') | |
673 | { | |
674 | if (sal.symtab == 0) | |
675 | /* FIXME-32x64--assumes sal.pc fits in long. */ | |
676 | error (_("No source file for address %s."), | |
677 | hex_string ((unsigned long) sal.pc)); | |
678 | sym = find_pc_function (sal.pc); | |
679 | if (sym) | |
680 | printf_filtered ("%s is in %s (%s:%d).\n", paddress (sal.pc), | |
681 | SYMBOL_PRINT_NAME (sym), sal.symtab->filename, | |
682 | sal.line); | |
683 | else | |
684 | printf_filtered ("%s is at %s:%d.\n", paddress (sal.pc), | |
685 | sal.symtab->filename, sal.line); | |
686 | } | |
687 | ||
688 | /* If what was given does not imply a symtab, it must be an undebuggable | |
689 | symbol which means no source code. */ | |
690 | ||
691 | if (sal.symtab == 0) | |
692 | error (_("No line number known for %s."), arg); | |
693 | } | |
694 | ||
695 | if ((editor = (char *) getenv ("EDITOR")) == NULL) | |
696 | editor = "/bin/ex"; | |
697 | ||
698 | /* If we don't already know the full absolute file name of the | |
699 | source file, find it now. */ | |
700 | if (!sal.symtab->fullname) | |
701 | { | |
702 | fn = symtab_to_fullname (sal.symtab); | |
703 | if (!fn) | |
704 | fn = "unknown"; | |
705 | } | |
706 | else | |
707 | fn = sal.symtab->fullname; | |
708 | ||
709 | /* Quote the file name, in case it has whitespace or other special | |
710 | characters. */ | |
711 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); | |
712 | shell_escape (p, from_tty); | |
713 | xfree (p); | |
714 | } | |
715 | ||
716 | static void | |
717 | list_command (char *arg, int from_tty) | |
718 | { | |
719 | struct symtabs_and_lines sals, sals_end; | |
720 | struct symtab_and_line sal = { 0 }; | |
721 | struct symtab_and_line sal_end = { 0 }; | |
722 | struct symtab_and_line cursal = { 0 }; | |
723 | struct symbol *sym; | |
724 | char *arg1; | |
725 | int no_end = 1; | |
726 | int dummy_end = 0; | |
727 | int dummy_beg = 0; | |
728 | int linenum_beg = 0; | |
729 | char *p; | |
730 | ||
731 | /* Pull in the current default source line if necessary */ | |
732 | if (arg == 0 || arg[0] == '+' || arg[0] == '-') | |
733 | { | |
734 | set_default_source_symtab_and_line (); | |
735 | cursal = get_current_source_symtab_and_line (); | |
736 | } | |
737 | ||
738 | /* "l" or "l +" lists next ten lines. */ | |
739 | ||
740 | if (arg == 0 || strcmp (arg, "+") == 0) | |
741 | { | |
742 | print_source_lines (cursal.symtab, cursal.line, | |
743 | cursal.line + get_lines_to_list (), 0); | |
744 | return; | |
745 | } | |
746 | ||
747 | /* "l -" lists previous ten lines, the ones before the ten just listed. */ | |
748 | if (strcmp (arg, "-") == 0) | |
749 | { | |
750 | print_source_lines (cursal.symtab, | |
751 | max (get_first_line_listed () - get_lines_to_list (), 1), | |
752 | get_first_line_listed (), 0); | |
753 | return; | |
754 | } | |
755 | ||
756 | /* Now if there is only one argument, decode it in SAL | |
757 | and set NO_END. | |
758 | If there are two arguments, decode them in SAL and SAL_END | |
759 | and clear NO_END; however, if one of the arguments is blank, | |
760 | set DUMMY_BEG or DUMMY_END to record that fact. */ | |
761 | ||
762 | if (!have_full_symbols () && !have_partial_symbols ()) | |
763 | error (_("No symbol table is loaded. Use the \"file\" command.")); | |
764 | ||
765 | arg1 = arg; | |
766 | if (*arg1 == ',') | |
767 | dummy_beg = 1; | |
768 | else | |
769 | { | |
770 | sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0); | |
771 | ||
772 | if (!sals.nelts) | |
773 | return; /* C++ */ | |
774 | if (sals.nelts > 1) | |
775 | { | |
776 | ambiguous_line_spec (&sals); | |
777 | xfree (sals.sals); | |
778 | return; | |
779 | } | |
780 | ||
781 | sal = sals.sals[0]; | |
782 | xfree (sals.sals); | |
783 | } | |
784 | ||
785 | /* Record whether the BEG arg is all digits. */ | |
786 | ||
787 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); | |
788 | linenum_beg = (p == arg1); | |
789 | ||
790 | while (*arg1 == ' ' || *arg1 == '\t') | |
791 | arg1++; | |
792 | if (*arg1 == ',') | |
793 | { | |
794 | no_end = 0; | |
795 | arg1++; | |
796 | while (*arg1 == ' ' || *arg1 == '\t') | |
797 | arg1++; | |
798 | if (*arg1 == 0) | |
799 | dummy_end = 1; | |
800 | else | |
801 | { | |
802 | if (dummy_beg) | |
803 | sals_end = decode_line_1 (&arg1, 0, 0, 0, 0, 0); | |
804 | else | |
805 | sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0, 0); | |
806 | if (sals_end.nelts == 0) | |
807 | return; | |
808 | if (sals_end.nelts > 1) | |
809 | { | |
810 | ambiguous_line_spec (&sals_end); | |
811 | xfree (sals_end.sals); | |
812 | return; | |
813 | } | |
814 | sal_end = sals_end.sals[0]; | |
815 | xfree (sals_end.sals); | |
816 | } | |
817 | } | |
818 | ||
819 | if (*arg1) | |
820 | error (_("Junk at end of line specification.")); | |
821 | ||
822 | if (!no_end && !dummy_beg && !dummy_end | |
823 | && sal.symtab != sal_end.symtab) | |
824 | error (_("Specified start and end are in different files.")); | |
825 | if (dummy_beg && dummy_end) | |
826 | error (_("Two empty args do not say what lines to list.")); | |
827 | ||
828 | /* if line was specified by address, | |
829 | first print exactly which line, and which file. | |
830 | In this case, sal.symtab == 0 means address is outside | |
831 | of all known source files, not that user failed to give a filename. */ | |
832 | if (*arg == '*') | |
833 | { | |
834 | if (sal.symtab == 0) | |
835 | /* FIXME-32x64--assumes sal.pc fits in long. */ | |
836 | error (_("No source file for address %s."), | |
837 | hex_string ((unsigned long) sal.pc)); | |
838 | sym = find_pc_function (sal.pc); | |
839 | if (sym) | |
840 | printf_filtered ("%s is in %s (%s:%d).\n", | |
841 | paddress (sal.pc), SYMBOL_PRINT_NAME (sym), | |
842 | sal.symtab->filename, sal.line); | |
843 | else | |
844 | printf_filtered ("%s is at %s:%d.\n", paddress (sal.pc), | |
845 | sal.symtab->filename, sal.line); | |
846 | } | |
847 | ||
848 | /* If line was not specified by just a line number, | |
849 | and it does not imply a symtab, it must be an undebuggable symbol | |
850 | which means no source code. */ | |
851 | ||
852 | if (!linenum_beg && sal.symtab == 0) | |
853 | error (_("No line number known for %s."), arg); | |
854 | ||
855 | /* If this command is repeated with RET, | |
856 | turn it into the no-arg variant. */ | |
857 | ||
858 | if (from_tty) | |
859 | *arg = 0; | |
860 | ||
861 | if (dummy_beg && sal_end.symtab == 0) | |
862 | error (_("No default source file yet. Do \"help list\".")); | |
863 | if (dummy_beg) | |
864 | print_source_lines (sal_end.symtab, | |
865 | max (sal_end.line - (get_lines_to_list () - 1), 1), | |
866 | sal_end.line + 1, 0); | |
867 | else if (sal.symtab == 0) | |
868 | error (_("No default source file yet. Do \"help list\".")); | |
869 | else if (no_end) | |
870 | { | |
871 | int first_line = sal.line - get_lines_to_list () / 2; | |
872 | ||
873 | if (first_line < 1) first_line = 1; | |
874 | ||
875 | print_source_lines (sal.symtab, | |
876 | first_line, | |
877 | first_line + get_lines_to_list (), | |
878 | 0); | |
879 | } | |
880 | else | |
881 | print_source_lines (sal.symtab, sal.line, | |
882 | (dummy_end | |
883 | ? sal.line + get_lines_to_list () | |
884 | : sal_end.line + 1), | |
885 | 0); | |
886 | } | |
887 | ||
888 | /* Subroutine of disassemble_command to simplify it. | |
889 | Perform the disassembly. | |
890 | NAME is the name of the function if known, or NULL. | |
891 | [LOW,HIGH) are the range of addresses to disassemble. | |
892 | MIXED is non-zero to print source with the assembler. */ | |
893 | ||
894 | static void | |
895 | print_disassembly (const char *name, CORE_ADDR low, CORE_ADDR high, int mixed) | |
896 | { | |
897 | #if defined(TUI) | |
898 | if (!tui_is_window_visible (DISASSEM_WIN)) | |
899 | #endif | |
900 | { | |
901 | printf_filtered ("Dump of assembler code "); | |
902 | if (name != NULL) | |
903 | printf_filtered ("for function %s:\n", name); | |
904 | else | |
905 | printf_filtered ("from %s to %s:\n", paddress (low), paddress (high)); | |
906 | ||
907 | /* Dump the specified range. */ | |
908 | gdb_disassembly (uiout, 0, mixed, -1, low, high); | |
909 | ||
910 | printf_filtered ("End of assembler dump.\n"); | |
911 | gdb_flush (gdb_stdout); | |
912 | } | |
913 | #if defined(TUI) | |
914 | else | |
915 | { | |
916 | tui_show_assembly (low); | |
917 | } | |
918 | #endif | |
919 | } | |
920 | ||
921 | /* Subroutine of disassemble_command to simplify it. | |
922 | Print a disassembly of the current function. | |
923 | MIXED is non-zero to print source with the assembler. */ | |
924 | ||
925 | static void | |
926 | disassemble_current_function (int mixed) | |
927 | { | |
928 | CORE_ADDR low, high, pc; | |
929 | char *name; | |
930 | ||
931 | pc = get_frame_pc (get_selected_frame (_("No frame selected."))); | |
932 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
933 | error (_("No function contains program counter for selected frame.")); | |
934 | #if defined(TUI) | |
935 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
936 | `tui_version'. */ | |
937 | if (tui_active) | |
938 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
939 | low = tui_get_low_disassembly_address (low, pc); | |
940 | #endif | |
941 | low += gdbarch_deprecated_function_start_offset (current_gdbarch); | |
942 | ||
943 | print_disassembly (name, low, high, mixed); | |
944 | } | |
945 | ||
946 | /* Dump a specified section of assembly code. | |
947 | ||
948 | Usage: | |
949 | disassemble [/m] | |
950 | - dump the assembly code for the function of the current pc | |
951 | disassemble [/m] addr | |
952 | - dump the assembly code for the function at ADDR | |
953 | disassemble [/m] low high | |
954 | - dump the assembly code in the range [LOW,HIGH) | |
955 | ||
956 | A /m modifier will include source code with the assembly. */ | |
957 | ||
958 | static void | |
959 | disassemble_command (char *arg, int from_tty) | |
960 | { | |
961 | CORE_ADDR low, high; | |
962 | char *name; | |
963 | CORE_ADDR pc, pc_masked; | |
964 | char *space_index; | |
965 | int mixed_source_and_assembly; | |
966 | ||
967 | name = NULL; | |
968 | mixed_source_and_assembly = 0; | |
969 | ||
970 | if (arg && *arg == '/') | |
971 | { | |
972 | ++arg; | |
973 | ||
974 | if (*arg == '\0') | |
975 | error (_("Missing modifier.")); | |
976 | ||
977 | while (*arg && ! isspace (*arg)) | |
978 | { | |
979 | switch (*arg++) | |
980 | { | |
981 | case 'm': | |
982 | mixed_source_and_assembly = 1; | |
983 | break; | |
984 | default: | |
985 | error (_("Invalid disassembly modifier.")); | |
986 | } | |
987 | } | |
988 | ||
989 | while (isspace (*arg)) | |
990 | ++arg; | |
991 | } | |
992 | ||
993 | if (! arg || ! *arg) | |
994 | { | |
995 | disassemble_current_function (mixed_source_and_assembly); | |
996 | return; | |
997 | } | |
998 | ||
999 | /* FIXME: 'twould be nice to allow spaces in the expression for the first | |
1000 | arg. Allow comma separater too? */ | |
1001 | ||
1002 | if (!(space_index = (char *) strchr (arg, ' '))) | |
1003 | { | |
1004 | /* One argument. */ | |
1005 | pc = parse_and_eval_address (arg); | |
1006 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
1007 | error (_("No function contains specified address.")); | |
1008 | #if defined(TUI) | |
1009 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
1010 | `tui_version'. */ | |
1011 | if (tui_active) | |
1012 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
1013 | low = tui_get_low_disassembly_address (low, pc); | |
1014 | #endif | |
1015 | low += gdbarch_deprecated_function_start_offset (current_gdbarch); | |
1016 | } | |
1017 | else | |
1018 | { | |
1019 | /* Two arguments. */ | |
1020 | *space_index = '\0'; | |
1021 | low = parse_and_eval_address (arg); | |
1022 | high = parse_and_eval_address (space_index + 1); | |
1023 | } | |
1024 | ||
1025 | print_disassembly (name, low, high, mixed_source_and_assembly); | |
1026 | } | |
1027 | ||
1028 | static void | |
1029 | make_command (char *arg, int from_tty) | |
1030 | { | |
1031 | char *p; | |
1032 | ||
1033 | if (arg == 0) | |
1034 | p = "make"; | |
1035 | else | |
1036 | { | |
1037 | p = xmalloc (sizeof ("make ") + strlen (arg)); | |
1038 | strcpy (p, "make "); | |
1039 | strcpy (p + sizeof ("make ") - 1, arg); | |
1040 | } | |
1041 | ||
1042 | shell_escape (p, from_tty); | |
1043 | } | |
1044 | ||
1045 | static void | |
1046 | show_user (char *args, int from_tty) | |
1047 | { | |
1048 | struct cmd_list_element *c; | |
1049 | extern struct cmd_list_element *cmdlist; | |
1050 | ||
1051 | if (args) | |
1052 | { | |
1053 | char *comname = args; | |
1054 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); | |
1055 | if (c->class != class_user) | |
1056 | error (_("Not a user command.")); | |
1057 | show_user_1 (c, "", args, gdb_stdout); | |
1058 | } | |
1059 | else | |
1060 | { | |
1061 | for (c = cmdlist; c; c = c->next) | |
1062 | { | |
1063 | if (c->class == class_user || c->prefixlist != NULL) | |
1064 | show_user_1 (c, "", c->name, gdb_stdout); | |
1065 | } | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | /* Search through names of commands and documentations for a certain | |
1070 | regular expression. | |
1071 | */ | |
1072 | void | |
1073 | apropos_command (char *searchstr, int from_tty) | |
1074 | { | |
1075 | extern struct cmd_list_element *cmdlist; /*This is the main command list*/ | |
1076 | regex_t pattern; | |
1077 | char *pattern_fastmap; | |
1078 | char errorbuffer[512]; | |
1079 | pattern_fastmap = xcalloc (256, sizeof (char)); | |
1080 | if (searchstr == NULL) | |
1081 | error (_("REGEXP string is empty")); | |
1082 | ||
1083 | if (regcomp(&pattern,searchstr,REG_ICASE) == 0) | |
1084 | { | |
1085 | pattern.fastmap=pattern_fastmap; | |
1086 | re_compile_fastmap(&pattern); | |
1087 | apropos_cmd (gdb_stdout,cmdlist,&pattern,""); | |
1088 | } | |
1089 | else | |
1090 | { | |
1091 | regerror(regcomp(&pattern,searchstr,REG_ICASE),NULL,errorbuffer,512); | |
1092 | error (_("Error in regular expression:%s"),errorbuffer); | |
1093 | } | |
1094 | xfree (pattern_fastmap); | |
1095 | } | |
1096 | \f | |
1097 | /* Print a list of files and line numbers which a user may choose from | |
1098 | in order to list a function which was specified ambiguously (as with | |
1099 | `list classname::overloadedfuncname', for example). The vector in | |
1100 | SALS provides the filenames and line numbers. */ | |
1101 | ||
1102 | static void | |
1103 | ambiguous_line_spec (struct symtabs_and_lines *sals) | |
1104 | { | |
1105 | int i; | |
1106 | ||
1107 | for (i = 0; i < sals->nelts; ++i) | |
1108 | printf_filtered (_("file: \"%s\", line number: %d\n"), | |
1109 | sals->sals[i].symtab->filename, sals->sals[i].line); | |
1110 | } | |
1111 | ||
1112 | static void | |
1113 | set_debug (char *arg, int from_tty) | |
1114 | { | |
1115 | printf_unfiltered (_("\"set debug\" must be followed by the name of a debug subcommand.\n")); | |
1116 | help_list (setdebuglist, "set debug ", -1, gdb_stdout); | |
1117 | } | |
1118 | ||
1119 | static void | |
1120 | show_debug (char *args, int from_tty) | |
1121 | { | |
1122 | cmd_show_list (showdebuglist, from_tty, ""); | |
1123 | } | |
1124 | ||
1125 | void | |
1126 | init_cmd_lists (void) | |
1127 | { | |
1128 | max_user_call_depth = 1024; | |
1129 | ||
1130 | cmdlist = NULL; | |
1131 | infolist = NULL; | |
1132 | enablelist = NULL; | |
1133 | disablelist = NULL; | |
1134 | togglelist = NULL; | |
1135 | stoplist = NULL; | |
1136 | deletelist = NULL; | |
1137 | detachlist = NULL; | |
1138 | enablebreaklist = NULL; | |
1139 | setlist = NULL; | |
1140 | unsetlist = NULL; | |
1141 | showlist = NULL; | |
1142 | sethistlist = NULL; | |
1143 | showhistlist = NULL; | |
1144 | unsethistlist = NULL; | |
1145 | maintenancelist = NULL; | |
1146 | maintenanceinfolist = NULL; | |
1147 | maintenanceprintlist = NULL; | |
1148 | setprintlist = NULL; | |
1149 | showprintlist = NULL; | |
1150 | setchecklist = NULL; | |
1151 | showchecklist = NULL; | |
1152 | } | |
1153 | ||
1154 | static void | |
1155 | show_info_verbose (struct ui_file *file, int from_tty, | |
1156 | struct cmd_list_element *c, | |
1157 | const char *value) | |
1158 | { | |
1159 | if (info_verbose) | |
1160 | fprintf_filtered (file, _("\ | |
1161 | Verbose printing of informational messages is %s.\n"), value); | |
1162 | else | |
1163 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); | |
1164 | } | |
1165 | ||
1166 | static void | |
1167 | show_history_expansion_p (struct ui_file *file, int from_tty, | |
1168 | struct cmd_list_element *c, const char *value) | |
1169 | { | |
1170 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), | |
1171 | value); | |
1172 | } | |
1173 | ||
1174 | static void | |
1175 | show_baud_rate (struct ui_file *file, int from_tty, | |
1176 | struct cmd_list_element *c, const char *value) | |
1177 | { | |
1178 | fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"), | |
1179 | value); | |
1180 | } | |
1181 | ||
1182 | static void | |
1183 | show_remote_debug (struct ui_file *file, int from_tty, | |
1184 | struct cmd_list_element *c, const char *value) | |
1185 | { | |
1186 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), | |
1187 | value); | |
1188 | } | |
1189 | ||
1190 | static void | |
1191 | show_remote_timeout (struct ui_file *file, int from_tty, | |
1192 | struct cmd_list_element *c, const char *value) | |
1193 | { | |
1194 | fprintf_filtered (file, _("\ | |
1195 | Timeout limit to wait for target to respond is %s.\n"), | |
1196 | value); | |
1197 | } | |
1198 | ||
1199 | static void | |
1200 | show_max_user_call_depth (struct ui_file *file, int from_tty, | |
1201 | struct cmd_list_element *c, const char *value) | |
1202 | { | |
1203 | fprintf_filtered (file, _("\ | |
1204 | The max call depth for user-defined commands is %s.\n"), | |
1205 | value); | |
1206 | } | |
1207 | ||
1208 | \f | |
1209 | void | |
1210 | init_cli_cmds (void) | |
1211 | { | |
1212 | struct cmd_list_element *c; | |
1213 | char *source_help_text; | |
1214 | ||
1215 | /* Define the classes of commands. | |
1216 | They will appear in the help list in the reverse of this order. */ | |
1217 | ||
1218 | add_cmd ("internals", class_maintenance, NULL, _("\ | |
1219 | Maintenance commands.\n\ | |
1220 | Some gdb commands are provided just for use by gdb maintainers.\n\ | |
1221 | These commands are subject to frequent change, and may not be as\n\ | |
1222 | well documented as user commands."), | |
1223 | &cmdlist); | |
1224 | add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist); | |
1225 | add_cmd ("aliases", class_alias, NULL, _("Aliases of other commands."), &cmdlist); | |
1226 | add_cmd ("user-defined", class_user, NULL, _("\ | |
1227 | User-defined commands.\n\ | |
1228 | The commands in this class are those defined by the user.\n\ | |
1229 | Use the \"define\" command to define a command."), &cmdlist); | |
1230 | add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist); | |
1231 | if (!dbx_commands) | |
1232 | add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist); | |
1233 | add_cmd ("files", class_files, NULL, _("Specifying and examining files."), | |
1234 | &cmdlist); | |
1235 | add_cmd ("breakpoints", class_breakpoint, NULL, | |
1236 | _("Making program stop at certain points."), &cmdlist); | |
1237 | add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist); | |
1238 | add_cmd ("stack", class_stack, NULL, _("\ | |
1239 | Examining the stack.\n\ | |
1240 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ | |
1241 | counting from zero for the innermost (currently executing) frame.\n\n\ | |
1242 | At any time gdb identifies one frame as the \"selected\" frame.\n\ | |
1243 | Variable lookups are done with respect to the selected frame.\n\ | |
1244 | When the program being debugged stops, gdb selects the innermost frame.\n\ | |
1245 | The commands below can be used to select other frames by number or address."), | |
1246 | &cmdlist); | |
1247 | add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist); | |
1248 | ||
1249 | /* Define general commands. */ | |
1250 | ||
1251 | c = add_com ("pwd", class_files, pwd_command, _("\ | |
1252 | Print working directory. This is used for your program as well.")); | |
1253 | set_cmd_no_selected_thread_ok (c); | |
1254 | ||
1255 | c = add_cmd ("cd", class_files, cd_command, _("\ | |
1256 | Set working directory to DIR for debugger and program being debugged.\n\ | |
1257 | The change does not take effect for the program being debugged\n\ | |
1258 | until the next time it is started."), &cmdlist); | |
1259 | set_cmd_completer (c, filename_completer); | |
1260 | ||
1261 | add_com ("echo", class_support, echo_command, _("\ | |
1262 | Print a constant string. Give string as argument.\n\ | |
1263 | C escape sequences may be used in the argument.\n\ | |
1264 | No newline is added at the end of the argument;\n\ | |
1265 | use \"\\n\" if you want a newline to be printed.\n\ | |
1266 | Since leading and trailing whitespace are ignored in command arguments,\n\ | |
1267 | if you want to print some you must use \"\\\" before leading whitespace\n\ | |
1268 | to be printed or after trailing whitespace.")); | |
1269 | add_com ("document", class_support, document_command, _("\ | |
1270 | Document a user-defined command.\n\ | |
1271 | Give command name as argument. Give documentation on following lines.\n\ | |
1272 | End with a line of just \"end\".")); | |
1273 | add_com ("define", class_support, define_command, _("\ | |
1274 | Define a new command name. Command name is argument.\n\ | |
1275 | Definition appears on following lines, one command per line.\n\ | |
1276 | End with a line of just \"end\".\n\ | |
1277 | Use the \"document\" command to give documentation for the new command.\n\ | |
1278 | Commands defined in this way may have up to ten arguments.")); | |
1279 | ||
1280 | source_help_text = xstrprintf (_("\ | |
1281 | Read commands from a file named FILE.\n\ | |
1282 | Optional -v switch (before the filename) causes each command in\n\ | |
1283 | FILE to be echoed as it is executed.\n\ | |
1284 | Note that the file \"%s\" is read automatically in this way\n\ | |
1285 | when GDB is started."), gdbinit); | |
1286 | c = add_cmd ("source", class_support, source_command, | |
1287 | source_help_text, &cmdlist); | |
1288 | set_cmd_completer (c, filename_completer); | |
1289 | ||
1290 | add_com ("quit", class_support, quit_command, _("Exit gdb.")); | |
1291 | c = add_com ("help", class_support, help_command, | |
1292 | _("Print list of commands.")); | |
1293 | set_cmd_completer (c, command_completer); | |
1294 | set_cmd_no_selected_thread_ok (c); | |
1295 | add_com_alias ("q", "quit", class_support, 1); | |
1296 | add_com_alias ("h", "help", class_support, 1); | |
1297 | ||
1298 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ | |
1299 | Set verbosity."), _("\ | |
1300 | Show verbosity."), NULL, | |
1301 | set_verbose, | |
1302 | show_info_verbose, | |
1303 | &setlist, &showlist); | |
1304 | ||
1305 | add_prefix_cmd ("history", class_support, set_history, | |
1306 | _("Generic command for setting command history parameters."), | |
1307 | &sethistlist, "set history ", 0, &setlist); | |
1308 | add_prefix_cmd ("history", class_support, show_history, | |
1309 | _("Generic command for showing command history parameters."), | |
1310 | &showhistlist, "show history ", 0, &showlist); | |
1311 | ||
1312 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ | |
1313 | Set history expansion on command input."), _("\ | |
1314 | Show history expansion on command input."), _("\ | |
1315 | Without an argument, history expansion is enabled."), | |
1316 | NULL, | |
1317 | show_history_expansion_p, | |
1318 | &sethistlist, &showhistlist); | |
1319 | ||
1320 | c = add_prefix_cmd ("info", class_info, info_command, _("\ | |
1321 | Generic command for showing things about the program being debugged."), | |
1322 | &infolist, "info ", 0, &cmdlist); | |
1323 | set_cmd_no_selected_thread_ok (c); | |
1324 | add_com_alias ("i", "info", class_info, 1); | |
1325 | ||
1326 | add_com ("complete", class_obscure, complete_command, | |
1327 | _("List the completions for the rest of the line as a command.")); | |
1328 | ||
1329 | c = add_prefix_cmd ("show", class_info, show_command, _("\ | |
1330 | Generic command for showing things about the debugger."), | |
1331 | &showlist, "show ", 0, &cmdlist); | |
1332 | set_cmd_no_selected_thread_ok (c); | |
1333 | /* Another way to get at the same thing. */ | |
1334 | add_info ("set", show_command, _("Show all GDB settings.")); | |
1335 | ||
1336 | add_cmd ("commands", no_class, show_commands, _("\ | |
1337 | Show the history of commands you typed.\n\ | |
1338 | You can supply a command number to start with, or a `+' to start after\n\ | |
1339 | the previous command number shown."), | |
1340 | &showlist); | |
1341 | ||
1342 | add_cmd ("version", no_class, show_version, | |
1343 | _("Show what version of GDB this is."), &showlist); | |
1344 | ||
1345 | add_com ("while", class_support, while_command, _("\ | |
1346 | Execute nested commands WHILE the conditional expression is non zero.\n\ | |
1347 | The conditional expression must follow the word `while' and must in turn be\n\ | |
1348 | followed by a new line. The nested commands must be entered one per line,\n\ | |
1349 | and should be terminated by the word `end'.")); | |
1350 | ||
1351 | add_com ("if", class_support, if_command, _("\ | |
1352 | Execute nested commands once IF the conditional expression is non zero.\n\ | |
1353 | The conditional expression must follow the word `if' and must in turn be\n\ | |
1354 | followed by a new line. The nested commands must be entered one per line,\n\ | |
1355 | and should be terminated by the word 'else' or `end'. If an else clause\n\ | |
1356 | is used, the same rules apply to its nested commands as to the first ones.")); | |
1357 | ||
1358 | /* If target is open when baud changes, it doesn't take effect until the | |
1359 | next open (I think, not sure). */ | |
1360 | add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\ | |
1361 | Set baud rate for remote serial I/O."), _("\ | |
1362 | Show baud rate for remote serial I/O."), _("\ | |
1363 | This value is used to set the speed of the serial port when debugging\n\ | |
1364 | using remote targets."), | |
1365 | NULL, | |
1366 | show_baud_rate, | |
1367 | &setlist, &showlist); | |
1368 | ||
1369 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ | |
1370 | Set debugging of remote protocol."), _("\ | |
1371 | Show debugging of remote protocol."), _("\ | |
1372 | When enabled, each packet sent or received with the remote target\n\ | |
1373 | is displayed."), | |
1374 | NULL, | |
1375 | show_remote_debug, | |
1376 | &setdebuglist, &showdebuglist); | |
1377 | ||
1378 | add_setshow_integer_cmd ("remotetimeout", no_class, &remote_timeout, _("\ | |
1379 | Set timeout limit to wait for target to respond."), _("\ | |
1380 | Show timeout limit to wait for target to respond."), _("\ | |
1381 | This value is used to set the time limit for gdb to wait for a response\n\ | |
1382 | from the target."), | |
1383 | NULL, | |
1384 | show_remote_timeout, | |
1385 | &setlist, &showlist); | |
1386 | ||
1387 | add_prefix_cmd ("debug", no_class, set_debug, | |
1388 | _("Generic command for setting gdb debugging flags"), | |
1389 | &setdebuglist, "set debug ", 0, &setlist); | |
1390 | ||
1391 | add_prefix_cmd ("debug", no_class, show_debug, | |
1392 | _("Generic command for showing gdb debugging flags"), | |
1393 | &showdebuglist, "show debug ", 0, &showlist); | |
1394 | ||
1395 | c = add_com ("shell", class_support, shell_escape, _("\ | |
1396 | Execute the rest of the line as a shell command.\n\ | |
1397 | With no arguments, run an inferior shell.")); | |
1398 | set_cmd_completer (c, filename_completer); | |
1399 | ||
1400 | c = add_com ("edit", class_files, edit_command, _("\ | |
1401 | Edit specified file or function.\n\ | |
1402 | With no argument, edits file containing most recent line listed.\n\ | |
1403 | Editing targets can be specified in these ways:\n\ | |
1404 | FILE:LINENUM, to edit at that line in that file,\n\ | |
1405 | FUNCTION, to edit at the beginning of that function,\n\ | |
1406 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1407 | *ADDRESS, to edit at the line containing that address.\n\ | |
1408 | Uses EDITOR environment variable contents as editor (or ex as default).")); | |
1409 | ||
1410 | c->completer = location_completer; | |
1411 | ||
1412 | add_com ("list", class_files, list_command, _("\ | |
1413 | List specified function or line.\n\ | |
1414 | With no argument, lists ten more lines after or around previous listing.\n\ | |
1415 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ | |
1416 | One argument specifies a line, and ten lines are listed around that line.\n\ | |
1417 | Two arguments with comma between specify starting and ending lines to list.\n\ | |
1418 | Lines can be specified in these ways:\n\ | |
1419 | LINENUM, to list around that line in current file,\n\ | |
1420 | FILE:LINENUM, to list around that line in that file,\n\ | |
1421 | FUNCTION, to list around beginning of that function,\n\ | |
1422 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1423 | *ADDRESS, to list around the line containing that address.\n\ | |
1424 | With two args if one is empty it stands for ten lines away from the other arg.")); | |
1425 | ||
1426 | if (!xdb_commands) | |
1427 | add_com_alias ("l", "list", class_files, 1); | |
1428 | else | |
1429 | add_com_alias ("v", "list", class_files, 1); | |
1430 | ||
1431 | if (dbx_commands) | |
1432 | add_com_alias ("file", "list", class_files, 1); | |
1433 | ||
1434 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ | |
1435 | Disassemble a specified section of memory.\n\ | |
1436 | Default is the function surrounding the pc of the selected frame.\n\ | |
1437 | With a /m modifier, source lines are included (if available).\n\ | |
1438 | With a single argument, the function surrounding that address is dumped.\n\ | |
1439 | Two arguments are taken as a range of memory to dump.")); | |
1440 | set_cmd_completer (c, location_completer); | |
1441 | if (xdb_commands) | |
1442 | add_com_alias ("va", "disassemble", class_xdb, 0); | |
1443 | ||
1444 | /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would | |
1445 | be a really useful feature. Unfortunately, the below wont do | |
1446 | this. Instead it adds support for the form ``(gdb) ! ls'' | |
1447 | (i.e. the space is required). If the ``!'' command below is | |
1448 | added the complains about no ``!'' command would be replaced by | |
1449 | complains about how the ``!'' command is broken :-) */ | |
1450 | if (xdb_commands) | |
1451 | add_com_alias ("!", "shell", class_support, 0); | |
1452 | ||
1453 | c = add_com ("make", class_support, make_command, _("\ | |
1454 | Run the ``make'' program using the rest of the line as arguments.")); | |
1455 | set_cmd_completer (c, filename_completer); | |
1456 | add_cmd ("user", no_class, show_user, _("\ | |
1457 | Show definitions of user defined commands.\n\ | |
1458 | Argument is the name of the user defined command.\n\ | |
1459 | With no argument, show definitions of all user defined commands."), &showlist); | |
1460 | add_com ("apropos", class_support, apropos_command, | |
1461 | _("Search for commands matching a REGEXP")); | |
1462 | ||
1463 | add_setshow_integer_cmd ("max-user-call-depth", no_class, | |
1464 | &max_user_call_depth, _("\ | |
1465 | Set the max call depth for user-defined commands."), _("\ | |
1466 | Show the max call depth for user-defined commands."), NULL, | |
1467 | NULL, | |
1468 | show_max_user_call_depth, | |
1469 | &setlist, &showlist); | |
1470 | ||
1471 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ | |
1472 | Set tracing of GDB CLI commands."), _("\ | |
1473 | Show state of GDB CLI command tracing."), _("\ | |
1474 | When 'on', each command is displayed as it is executed."), | |
1475 | NULL, | |
1476 | NULL, | |
1477 | &setlist, &showlist); | |
1478 | } |