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d318976c | 1 | /* GDB CLI commands. |
8926118c | 2 | |
42a4f53d | 3 | Copyright (C) 2000-2019 Free Software Foundation, Inc. |
d318976c FN |
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
d318976c FN |
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 | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
d318976c FN |
19 | |
20 | #include "defs.h" | |
13274fc3 | 21 | #include "arch-utils.h" |
dbda9972 AC |
22 | #include "readline/readline.h" |
23 | #include "readline/tilde.h" | |
d318976c | 24 | #include "completer.h" |
ebcd3b23 | 25 | #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */ |
268a13a5 | 26 | #include "gdbsupport/gdb_wait.h" /* For shell escape implementation. */ |
947d3946 | 27 | #include "gdbcmd.h" |
ebcd3b23 | 28 | #include "gdb_regex.h" /* Used by apropos_command. */ |
325ed089 | 29 | #include "gdb_vfork.h" |
0378c332 FN |
30 | #include "linespec.h" |
31 | #include "expression.h" | |
83c31e7d FN |
32 | #include "frame.h" |
33 | #include "value.h" | |
0378c332 | 34 | #include "language.h" |
ebcd3b23 | 35 | #include "filenames.h" /* For DOSish file names. */ |
0378c332 FN |
36 | #include "objfiles.h" |
37 | #include "source.h" | |
83c31e7d | 38 | #include "disasm.h" |
33da3f1c | 39 | #include "tracepoint.h" |
268a13a5 | 40 | #include "gdbsupport/filestuff.h" |
f00aae0f | 41 | #include "location.h" |
e9480230 | 42 | #include "block.h" |
d318976c | 43 | |
d318976c | 44 | #include "ui-out.h" |
947d3946 | 45 | #include "interps.h" |
d318976c FN |
46 | |
47 | #include "top.h" | |
48 | #include "cli/cli-decode.h" | |
49 | #include "cli/cli-script.h" | |
50 | #include "cli/cli-setshow.h" | |
51 | #include "cli/cli-cmds.h" | |
529480d0 | 52 | #include "cli/cli-utils.h" |
d318976c | 53 | |
6dddc817 | 54 | #include "extension.h" |
268a13a5 | 55 | #include "gdbsupport/pathstuff.h" |
973817a3 | 56 | |
6a83354a | 57 | #ifdef TUI |
ebcd3b23 | 58 | #include "tui/tui.h" /* For tui_active et.al. */ |
6a83354a AC |
59 | #endif |
60 | ||
4b505b12 | 61 | #include <fcntl.h> |
325fac50 | 62 | #include <algorithm> |
a97e29d2 | 63 | #include <string> |
4b505b12 | 64 | |
0378c332 FN |
65 | /* Prototypes for local utility functions */ |
66 | ||
06871ae8 PA |
67 | static void print_sal_location (const symtab_and_line &sal); |
68 | ||
6c5b2ebe | 69 | static void ambiguous_line_spec (gdb::array_view<const symtab_and_line> sals, |
e439fa14 PA |
70 | const char *format, ...) |
71 | ATTRIBUTE_PRINTF (2, 3); | |
f8eba3c6 | 72 | |
6c5b2ebe | 73 | static void filter_sals (std::vector<symtab_and_line> &); |
f8eba3c6 | 74 | |
d318976c | 75 | \f |
20f01a46 | 76 | /* Limit the call depth of user-defined commands */ |
883b9c6c | 77 | unsigned int max_user_call_depth; |
20f01a46 | 78 | |
d318976c FN |
79 | /* Define all cmd_list_elements. */ |
80 | ||
81 | /* Chain containing all defined commands. */ | |
82 | ||
83 | struct cmd_list_element *cmdlist; | |
84 | ||
85 | /* Chain containing all defined info subcommands. */ | |
86 | ||
87 | struct cmd_list_element *infolist; | |
88 | ||
ebcd3b23 | 89 | /* Chain containing all defined enable subcommands. */ |
d318976c FN |
90 | |
91 | struct cmd_list_element *enablelist; | |
92 | ||
ebcd3b23 | 93 | /* Chain containing all defined disable subcommands. */ |
d318976c FN |
94 | |
95 | struct cmd_list_element *disablelist; | |
96 | ||
ebcd3b23 | 97 | /* Chain containing all defined stop subcommands. */ |
d318976c FN |
98 | |
99 | struct cmd_list_element *stoplist; | |
100 | ||
ebcd3b23 | 101 | /* Chain containing all defined delete subcommands. */ |
d318976c FN |
102 | |
103 | struct cmd_list_element *deletelist; | |
104 | ||
ebcd3b23 | 105 | /* Chain containing all defined detach subcommands. */ |
f73adfeb AS |
106 | |
107 | struct cmd_list_element *detachlist; | |
108 | ||
ebcd3b23 | 109 | /* Chain containing all defined kill subcommands. */ |
2277426b PA |
110 | |
111 | struct cmd_list_element *killlist; | |
112 | ||
d318976c FN |
113 | /* Chain containing all defined set subcommands */ |
114 | ||
115 | struct cmd_list_element *setlist; | |
116 | ||
117 | /* Chain containing all defined unset subcommands */ | |
118 | ||
119 | struct cmd_list_element *unsetlist; | |
120 | ||
121 | /* Chain containing all defined show subcommands. */ | |
122 | ||
123 | struct cmd_list_element *showlist; | |
124 | ||
125 | /* Chain containing all defined \"set history\". */ | |
126 | ||
127 | struct cmd_list_element *sethistlist; | |
128 | ||
129 | /* Chain containing all defined \"show history\". */ | |
130 | ||
131 | struct cmd_list_element *showhistlist; | |
132 | ||
133 | /* Chain containing all defined \"unset history\". */ | |
134 | ||
135 | struct cmd_list_element *unsethistlist; | |
136 | ||
ebcd3b23 | 137 | /* Chain containing all defined maintenance subcommands. */ |
d318976c FN |
138 | |
139 | struct cmd_list_element *maintenancelist; | |
140 | ||
ebcd3b23 | 141 | /* Chain containing all defined "maintenance info" subcommands. */ |
d318976c FN |
142 | |
143 | struct cmd_list_element *maintenanceinfolist; | |
144 | ||
ebcd3b23 | 145 | /* Chain containing all defined "maintenance print" subcommands. */ |
d318976c FN |
146 | |
147 | struct cmd_list_element *maintenanceprintlist; | |
148 | ||
27d41eac YQ |
149 | /* Chain containing all defined "maintenance check" subcommands. */ |
150 | ||
151 | struct cmd_list_element *maintenancechecklist; | |
152 | ||
d318976c FN |
153 | struct cmd_list_element *setprintlist; |
154 | ||
155 | struct cmd_list_element *showprintlist; | |
156 | ||
157 | struct cmd_list_element *setdebuglist; | |
158 | ||
159 | struct cmd_list_element *showdebuglist; | |
160 | ||
161 | struct cmd_list_element *setchecklist; | |
162 | ||
163 | struct cmd_list_element *showchecklist; | |
16026cd7 AS |
164 | |
165 | /* Command tracing state. */ | |
166 | ||
167 | int source_verbose = 0; | |
168 | int trace_commands = 0; | |
d318976c | 169 | \f |
973817a3 JB |
170 | /* 'script-extension' option support. */ |
171 | ||
172 | static const char script_ext_off[] = "off"; | |
173 | static const char script_ext_soft[] = "soft"; | |
174 | static const char script_ext_strict[] = "strict"; | |
175 | ||
40478521 | 176 | static const char *const script_ext_enums[] = { |
973817a3 JB |
177 | script_ext_off, |
178 | script_ext_soft, | |
179 | script_ext_strict, | |
180 | NULL | |
181 | }; | |
182 | ||
183 | static const char *script_ext_mode = script_ext_soft; | |
184 | \f | |
d318976c | 185 | /* Utility used everywhere when at least one argument is needed and |
ebcd3b23 | 186 | none is supplied. */ |
d318976c FN |
187 | |
188 | void | |
5b10184c | 189 | error_no_arg (const char *why) |
d318976c | 190 | { |
8a3fe4f8 | 191 | error (_("Argument required (%s)."), why); |
d318976c FN |
192 | } |
193 | ||
194 | /* The "info" command is defined as a prefix, with allow_unknown = 0. | |
ebcd3b23 MS |
195 | Therefore, its own definition is called only for "info" with no |
196 | args. */ | |
d318976c | 197 | |
d318976c | 198 | static void |
981a3fb3 | 199 | info_command (const char *arg, int from_tty) |
d318976c | 200 | { |
9a2b4c1b MS |
201 | printf_unfiltered (_("\"info\" must be followed by " |
202 | "the name of an info command.\n")); | |
635c7e8a | 203 | help_list (infolist, "info ", all_commands, gdb_stdout); |
d318976c FN |
204 | } |
205 | ||
206 | /* The "show" command with no arguments shows all the settings. */ | |
207 | ||
981a3fb3 TT |
208 | static void |
209 | show_command (const char *arg, int from_tty) | |
210 | { | |
211 | cmd_show_list (showlist, from_tty, ""); | |
212 | } | |
213 | ||
fdbc9870 PA |
214 | /* See cli/cli-cmds.h. */ |
215 | ||
216 | void | |
217 | with_command_1 (const char *set_cmd_prefix, | |
218 | cmd_list_element *setlist, const char *args, int from_tty) | |
219 | { | |
220 | const char *delim = strstr (args, "--"); | |
221 | const char *nested_cmd = nullptr; | |
222 | ||
223 | if (delim == args) | |
224 | error (_("Missing setting before '--' delimiter")); | |
225 | ||
226 | if (delim == nullptr || *skip_spaces (&delim[2]) == '\0') | |
227 | nested_cmd = repeat_previous (); | |
228 | ||
229 | cmd_list_element *set_cmd = lookup_cmd (&args, setlist, set_cmd_prefix, | |
230 | /*allow_unknown=*/ 0, | |
231 | /*ignore_help_classes=*/ 1); | |
232 | gdb_assert (set_cmd != nullptr); | |
233 | ||
234 | if (set_cmd->var == nullptr) | |
235 | error (_("Cannot use this setting with the \"with\" command")); | |
236 | ||
237 | std::string temp_value | |
238 | = (delim == nullptr ? args : std::string (args, delim - args)); | |
239 | ||
240 | if (nested_cmd == nullptr) | |
241 | nested_cmd = skip_spaces (delim + 2); | |
242 | ||
243 | std::string org_value = get_setshow_command_value_string (set_cmd); | |
244 | ||
245 | /* Tweak the setting to the new temporary value. */ | |
246 | do_set_command (temp_value.c_str (), from_tty, set_cmd); | |
247 | ||
248 | try | |
249 | { | |
250 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); | |
251 | ||
252 | /* Execute the nested command. */ | |
253 | execute_command (nested_cmd, from_tty); | |
254 | } | |
255 | catch (const gdb_exception &ex) | |
256 | { | |
257 | /* Restore the setting and rethrow. If restoring the setting | |
258 | throws, swallow the new exception and warn. There's nothing | |
259 | else we can reasonably do. */ | |
260 | try | |
261 | { | |
262 | do_set_command (org_value.c_str (), from_tty, set_cmd); | |
263 | } | |
264 | catch (const gdb_exception &ex2) | |
265 | { | |
266 | warning (_("Couldn't restore setting: %s"), ex2.what ()); | |
267 | } | |
268 | ||
269 | throw; | |
270 | } | |
271 | ||
272 | /* Restore the setting. */ | |
273 | do_set_command (org_value.c_str (), from_tty, set_cmd); | |
274 | } | |
275 | ||
276 | /* See cli/cli-cmds.h. */ | |
277 | ||
278 | void | |
279 | with_command_completer_1 (const char *set_cmd_prefix, | |
280 | completion_tracker &tracker, | |
281 | const char *text) | |
282 | { | |
283 | tracker.set_use_custom_word_point (true); | |
284 | ||
285 | const char *delim = strstr (text, "--"); | |
286 | ||
287 | /* If we're still not past the "--" delimiter, complete the "with" | |
288 | command as if it was a "set" command. */ | |
289 | if (delim == text | |
290 | || delim == nullptr | |
291 | || !isspace (delim[-1]) | |
292 | || !(isspace (delim[2]) || delim[2] == '\0')) | |
293 | { | |
294 | std::string new_text = std::string (set_cmd_prefix) + text; | |
295 | tracker.advance_custom_word_point_by (-(int) strlen (set_cmd_prefix)); | |
296 | complete_nested_command_line (tracker, new_text.c_str ()); | |
297 | return; | |
298 | } | |
299 | ||
300 | /* We're past the "--" delimiter. Complete on the sub command. */ | |
301 | const char *nested_cmd = skip_spaces (delim + 2); | |
302 | tracker.advance_custom_word_point_by (nested_cmd - text); | |
303 | complete_nested_command_line (tracker, nested_cmd); | |
304 | } | |
305 | ||
306 | /* The "with" command. */ | |
307 | ||
308 | static void | |
309 | with_command (const char *args, int from_tty) | |
310 | { | |
311 | with_command_1 ("set ", setlist, args, from_tty); | |
312 | } | |
313 | ||
314 | /* "with" command completer. */ | |
315 | ||
316 | static void | |
317 | with_command_completer (struct cmd_list_element *ignore, | |
318 | completion_tracker &tracker, | |
319 | const char *text, const char * /*word*/) | |
320 | { | |
321 | with_command_completer_1 ("set ", tracker, text); | |
322 | } | |
323 | ||
d318976c FN |
324 | \f |
325 | /* Provide documentation on command or list given by COMMAND. FROM_TTY | |
326 | is ignored. */ | |
327 | ||
d318976c | 328 | static void |
0b39b52e | 329 | help_command (const char *command, int from_tty) |
d318976c FN |
330 | { |
331 | help_cmd (command, gdb_stdout); | |
332 | } | |
333 | \f | |
eb3ff9a5 | 334 | |
ef0b411a GB |
335 | /* Note: The "complete" command is used by Emacs to implement completion. |
336 | [Is that why this function writes output with *_unfiltered?] */ | |
d318976c | 337 | |
d318976c | 338 | static void |
0b39b52e | 339 | complete_command (const char *arg, int from_tty) |
d318976c | 340 | { |
d318976c FN |
341 | dont_repeat (); |
342 | ||
ef0b411a GB |
343 | if (max_completions == 0) |
344 | { | |
345 | /* Only print this for non-mi frontends. An MI frontend may not | |
346 | be able to handle this. */ | |
112e8700 | 347 | if (!current_uiout->is_mi_like_p ()) |
ef0b411a GB |
348 | { |
349 | printf_unfiltered (_("max-completions is zero," | |
350 | " completion is disabled.\n")); | |
351 | } | |
352 | return; | |
353 | } | |
354 | ||
d318976c FN |
355 | if (arg == NULL) |
356 | arg = ""; | |
d9b52655 | 357 | |
6a2c1b87 PA |
358 | int quote_char = '\0'; |
359 | const char *word; | |
360 | ||
6e035501 | 361 | completion_result result = complete (arg, &word, "e_char); |
eb3ff9a5 | 362 | |
eb3ff9a5 PA |
363 | if (result.number_matches != 0) |
364 | { | |
fb7806c7 TV |
365 | std::string arg_prefix (arg, word - arg); |
366 | ||
eb3ff9a5 PA |
367 | if (result.number_matches == 1) |
368 | printf_unfiltered ("%s%s\n", arg_prefix.c_str (), result.match_list[0]); | |
369 | else | |
83d31a92 | 370 | { |
eb3ff9a5 PA |
371 | result.sort_match_list (); |
372 | ||
373 | for (size_t i = 0; i < result.number_matches; i++) | |
83d31a92 | 374 | { |
eb3ff9a5 PA |
375 | printf_unfiltered ("%s%s", |
376 | arg_prefix.c_str (), | |
377 | result.match_list[i + 1]); | |
6a2c1b87 PA |
378 | if (quote_char) |
379 | printf_unfiltered ("%c", quote_char); | |
eb3ff9a5 | 380 | printf_unfiltered ("\n"); |
83d31a92 | 381 | } |
83d31a92 TT |
382 | } |
383 | ||
eb3ff9a5 | 384 | if (result.number_matches == max_completions) |
ef0b411a | 385 | { |
6a2c1b87 | 386 | /* ARG_PREFIX and WORD are included in the output so that emacs |
ef0b411a GB |
387 | will include the message in the output. */ |
388 | printf_unfiltered (_("%s%s %s\n"), | |
6a2c1b87 | 389 | arg_prefix.c_str (), word, |
ef0b411a GB |
390 | get_max_completions_reached_message ()); |
391 | } | |
d318976c FN |
392 | } |
393 | } | |
394 | ||
bbaca940 AC |
395 | int |
396 | is_complete_command (struct cmd_list_element *c) | |
d318976c | 397 | { |
bbaca940 | 398 | return cmd_cfunc_eq (c, complete_command); |
d318976c FN |
399 | } |
400 | ||
d318976c | 401 | static void |
dede02ce | 402 | show_version (const char *args, int from_tty) |
d318976c | 403 | { |
c61b06a1 | 404 | print_gdb_version (gdb_stdout, true); |
d318976c | 405 | printf_filtered ("\n"); |
d318976c FN |
406 | } |
407 | ||
6eaaf48b | 408 | static void |
dede02ce | 409 | show_configuration (const char *args, int from_tty) |
6eaaf48b EZ |
410 | { |
411 | print_gdb_configuration (gdb_stdout); | |
412 | } | |
413 | ||
d318976c FN |
414 | /* Handle the quit command. */ |
415 | ||
416 | void | |
0b39b52e | 417 | quit_command (const char *args, int from_tty) |
d318976c | 418 | { |
36cf1806 TT |
419 | int exit_code = 0; |
420 | ||
421 | /* An optional expression may be used to cause gdb to terminate with | |
422 | the value of that expression. */ | |
423 | if (args) | |
424 | { | |
425 | struct value *val = parse_and_eval (args); | |
426 | ||
427 | exit_code = (int) value_as_long (val); | |
428 | } | |
429 | ||
d318976c | 430 | if (!quit_confirm ()) |
8a3fe4f8 | 431 | error (_("Not confirmed.")); |
d5551862 | 432 | |
2f9d54cf | 433 | query_if_trace_running (from_tty); |
d5551862 | 434 | |
36cf1806 | 435 | quit_force (args ? &exit_code : NULL, from_tty); |
d318976c FN |
436 | } |
437 | ||
d318976c | 438 | static void |
0b39b52e | 439 | pwd_command (const char *args, int from_tty) |
d318976c FN |
440 | { |
441 | if (args) | |
8a3fe4f8 | 442 | error (_("The \"pwd\" command does not take an argument: %s"), args); |
43573013 SDJ |
443 | |
444 | gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0)); | |
445 | ||
446 | if (cwd == NULL) | |
bf1d7d9c JB |
447 | error (_("Error finding name of working directory: %s"), |
448 | safe_strerror (errno)); | |
d318976c | 449 | |
43573013 | 450 | if (strcmp (cwd.get (), current_directory) != 0) |
a3f17187 | 451 | printf_unfiltered (_("Working directory %s\n (canonically %s).\n"), |
43573013 | 452 | current_directory, cwd.get ()); |
d318976c | 453 | else |
a3f17187 | 454 | printf_unfiltered (_("Working directory %s.\n"), current_directory); |
d318976c FN |
455 | } |
456 | ||
457 | void | |
5e93d4c6 | 458 | cd_command (const char *dir, int from_tty) |
d318976c FN |
459 | { |
460 | int len; | |
461 | /* Found something other than leading repetitions of "/..". */ | |
462 | int found_real_path; | |
463 | char *p; | |
464 | ||
465 | /* If the new directory is absolute, repeat is a no-op; if relative, | |
466 | repeat might be useful but is more likely to be a mistake. */ | |
467 | dont_repeat (); | |
468 | ||
6eecf35f TT |
469 | gdb::unique_xmalloc_ptr<char> dir_holder |
470 | (tilde_expand (dir != NULL ? dir : "~")); | |
471 | dir = dir_holder.get (); | |
d318976c FN |
472 | |
473 | if (chdir (dir) < 0) | |
474 | perror_with_name (dir); | |
475 | ||
c3690141 | 476 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
d318976c FN |
477 | /* There's too much mess with DOSish names like "d:", "d:.", |
478 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, | |
479 | simply get the canonicalized name of the current directory. */ | |
43573013 SDJ |
480 | gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0)); |
481 | dir = cwd.get (); | |
d318976c FN |
482 | #endif |
483 | ||
484 | len = strlen (dir); | |
fe4e3eb8 | 485 | if (IS_DIR_SEPARATOR (dir[len - 1])) |
d318976c FN |
486 | { |
487 | /* Remove the trailing slash unless this is a root directory | |
488 | (including a drive letter on non-Unix systems). */ | |
489 | if (!(len == 1) /* "/" */ | |
c3690141 | 490 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
fe4e3eb8 | 491 | && !(len == 3 && dir[1] == ':') /* "d:/" */ |
d318976c FN |
492 | #endif |
493 | ) | |
494 | len--; | |
495 | } | |
496 | ||
6eecf35f TT |
497 | dir_holder.reset (savestring (dir, len)); |
498 | if (IS_ABSOLUTE_PATH (dir_holder.get ())) | |
43573013 SDJ |
499 | { |
500 | xfree (current_directory); | |
501 | current_directory = dir_holder.release (); | |
502 | } | |
d318976c FN |
503 | else |
504 | { | |
fe4e3eb8 | 505 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) |
6eecf35f TT |
506 | current_directory = concat (current_directory, dir_holder.get (), |
507 | (char *) NULL); | |
d318976c | 508 | else |
1754f103 | 509 | current_directory = concat (current_directory, SLASH_STRING, |
6eecf35f | 510 | dir_holder.get (), (char *) NULL); |
d318976c FN |
511 | } |
512 | ||
513 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ | |
514 | ||
515 | found_real_path = 0; | |
516 | for (p = current_directory; *p;) | |
517 | { | |
fe4e3eb8 EZ |
518 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' |
519 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) | |
b2a3b509 | 520 | memmove (p, p + 2, strlen (p + 2) + 1); |
fe4e3eb8 EZ |
521 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' |
522 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) | |
d318976c FN |
523 | { |
524 | if (found_real_path) | |
525 | { | |
526 | /* Search backwards for the directory just before the "/.." | |
527 | and obliterate it and the "/..". */ | |
528 | char *q = p; | |
cdb27c12 | 529 | |
fe4e3eb8 | 530 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) |
d318976c FN |
531 | --q; |
532 | ||
533 | if (q == current_directory) | |
534 | /* current_directory is | |
535 | a relative pathname ("can't happen"--leave it alone). */ | |
536 | ++p; | |
537 | else | |
538 | { | |
b2a3b509 | 539 | memmove (q - 1, p + 3, strlen (p + 3) + 1); |
d318976c FN |
540 | p = q - 1; |
541 | } | |
542 | } | |
543 | else | |
ebcd3b23 MS |
544 | /* We are dealing with leading repetitions of "/..", for |
545 | example "/../..", which is the Mach super-root. */ | |
d318976c FN |
546 | p += 3; |
547 | } | |
548 | else | |
549 | { | |
550 | found_real_path = 1; | |
551 | ++p; | |
552 | } | |
553 | } | |
554 | ||
555 | forget_cached_source_info (); | |
556 | ||
557 | if (from_tty) | |
558 | pwd_command ((char *) 0, 1); | |
559 | } | |
560 | \f | |
973817a3 JB |
561 | /* Show the current value of the 'script-extension' option. */ |
562 | ||
563 | static void | |
564 | show_script_ext_mode (struct ui_file *file, int from_tty, | |
565 | struct cmd_list_element *c, const char *value) | |
d318976c | 566 | { |
9a2b4c1b MS |
567 | fprintf_filtered (file, |
568 | _("Script filename extension recognition is \"%s\".\n"), | |
973817a3 JB |
569 | value); |
570 | } | |
571 | ||
3f7b2faa DE |
572 | /* Try to open SCRIPT_FILE. |
573 | If successful, the full path name is stored in *FULL_PATHP, | |
ed166945 TT |
574 | and the stream is returned. |
575 | If not successful, return NULL; errno is set for the last file | |
3f7b2faa DE |
576 | we tried to open. |
577 | ||
578 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
f5b95b50 | 579 | search for it in the source search path. */ |
3f7b2faa | 580 | |
ed166945 TT |
581 | gdb::optional<open_script> |
582 | find_and_open_script (const char *script_file, int search_path) | |
973817a3 | 583 | { |
4b505b12 | 584 | int fd; |
24b9144d | 585 | openp_flags search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH; |
ed166945 | 586 | gdb::optional<open_script> opened; |
d318976c | 587 | |
ee0c3293 | 588 | gdb::unique_xmalloc_ptr<char> file (tilde_expand (script_file)); |
d318976c | 589 | |
3f7b2faa DE |
590 | if (search_path) |
591 | search_flags |= OPF_SEARCH_IN_PATH; | |
4b505b12 | 592 | |
3f7b2faa DE |
593 | /* Search for and open 'file' on the search path used for source |
594 | files. Put the full location in *FULL_PATHP. */ | |
e0cc99a6 | 595 | gdb::unique_xmalloc_ptr<char> full_path; |
3f7b2faa | 596 | fd = openp (source_path, search_flags, |
e0cc99a6 | 597 | file.get (), O_RDONLY, &full_path); |
4b505b12 AS |
598 | |
599 | if (fd == -1) | |
ee0c3293 | 600 | return opened; |
973817a3 | 601 | |
ed166945 TT |
602 | FILE *result = fdopen (fd, FOPEN_RT); |
603 | if (result == NULL) | |
77a35dd8 JK |
604 | { |
605 | int save_errno = errno; | |
606 | ||
607 | close (fd); | |
77a35dd8 | 608 | errno = save_errno; |
77a35dd8 | 609 | } |
ed166945 TT |
610 | else |
611 | opened.emplace (gdb_file_up (result), std::move (full_path)); | |
77a35dd8 | 612 | |
ed166945 | 613 | return opened; |
973817a3 JB |
614 | } |
615 | ||
1a70ae97 DE |
616 | /* Load script FILE, which has already been opened as STREAM. |
617 | FILE_TO_OPEN is the form of FILE to use if one needs to open the file. | |
618 | This is provided as FILE may have been found via the source search path. | |
619 | An important thing to note here is that FILE may be a symlink to a file | |
620 | with a different or non-existing suffix, and thus one cannot infer the | |
621 | extension language from FILE_TO_OPEN. */ | |
973817a3 | 622 | |
3f7b2faa | 623 | static void |
1a70ae97 DE |
624 | source_script_from_stream (FILE *stream, const char *file, |
625 | const char *file_to_open) | |
3f7b2faa | 626 | { |
6dddc817 | 627 | if (script_ext_mode != script_ext_off) |
973817a3 | 628 | { |
6dddc817 DE |
629 | const struct extension_language_defn *extlang |
630 | = get_ext_lang_of_file (file); | |
631 | ||
632 | if (extlang != NULL) | |
973817a3 | 633 | { |
6dddc817 DE |
634 | if (ext_lang_present_p (extlang)) |
635 | { | |
636 | script_sourcer_func *sourcer | |
637 | = ext_lang_script_sourcer (extlang); | |
638 | ||
639 | gdb_assert (sourcer != NULL); | |
1a70ae97 | 640 | sourcer (extlang, stream, file_to_open); |
6dddc817 DE |
641 | return; |
642 | } | |
643 | else if (script_ext_mode == script_ext_soft) | |
644 | { | |
645 | /* Assume the file is a gdb script. | |
646 | This is handled below. */ | |
647 | } | |
648 | else | |
649 | throw_ext_lang_unsupported (extlang); | |
973817a3 JB |
650 | } |
651 | } | |
6dddc817 DE |
652 | |
653 | script_from_file (stream, file); | |
3f7b2faa | 654 | } |
d318976c | 655 | |
3f7b2faa DE |
656 | /* Worker to perform the "source" command. |
657 | Load script FILE. | |
658 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
659 | search for it in the source search path. */ | |
660 | ||
661 | static void | |
662 | source_script_with_search (const char *file, int from_tty, int search_path) | |
663 | { | |
3f7b2faa DE |
664 | |
665 | if (file == NULL || *file == 0) | |
666 | error (_("source command requires file name of file to source.")); | |
667 | ||
ed166945 TT |
668 | gdb::optional<open_script> opened = find_and_open_script (file, search_path); |
669 | if (!opened) | |
3f7b2faa | 670 | { |
d234ef5c | 671 | /* The script wasn't found, or was otherwise inaccessible. |
ebcd3b23 MS |
672 | If the source command was invoked interactively, throw an |
673 | error. Otherwise (e.g. if it was invoked by a script), | |
7c647d61 | 674 | just emit a warning, rather than cause an error. */ |
3f7b2faa DE |
675 | if (from_tty) |
676 | perror_with_name (file); | |
677 | else | |
7c647d61 JB |
678 | { |
679 | perror_warning_with_name (file); | |
680 | return; | |
681 | } | |
3f7b2faa DE |
682 | } |
683 | ||
d234ef5c DE |
684 | /* The python support reopens the file, so we need to pass full_path here |
685 | in case the file was found on the search path. It's useful to do this | |
686 | anyway so that error messages show the actual file used. But only do | |
687 | this if we (may have) used search_path, as printing the full path in | |
688 | errors for the non-search case can be more noise than signal. */ | |
ed166945 TT |
689 | source_script_from_stream (opened->stream.get (), file, |
690 | search_path ? opened->full_path.get () : file); | |
d318976c FN |
691 | } |
692 | ||
3f7b2faa DE |
693 | /* Wrapper around source_script_with_search to export it to main.c |
694 | for use in loading .gdbinit scripts. */ | |
695 | ||
696 | void | |
50dd9793 | 697 | source_script (const char *file, int from_tty) |
3f7b2faa DE |
698 | { |
699 | source_script_with_search (file, from_tty, 0); | |
700 | } | |
701 | ||
16026cd7 | 702 | static void |
dede02ce | 703 | source_command (const char *args, int from_tty) |
16026cd7 | 704 | { |
dede02ce | 705 | const char *file = args; |
3f7b2faa | 706 | int search_path = 0; |
16026cd7 | 707 | |
2ec845e7 | 708 | scoped_restore save_source_verbose = make_scoped_restore (&source_verbose); |
16026cd7 AS |
709 | |
710 | /* -v causes the source command to run in verbose mode. | |
3f7b2faa DE |
711 | -s causes the file to be searched in the source search path, |
712 | even if the file name contains a '/'. | |
16026cd7 AS |
713 | We still have to be able to handle filenames with spaces in a |
714 | backward compatible way, so buildargv is not appropriate. */ | |
715 | ||
716 | if (args) | |
717 | { | |
3f7b2faa | 718 | while (args[0] != '\0') |
16026cd7 | 719 | { |
ebcd3b23 MS |
720 | /* Make sure leading white space does not break the |
721 | comparisons. */ | |
529480d0 | 722 | args = skip_spaces (args); |
3f7b2faa DE |
723 | |
724 | if (args[0] != '-') | |
725 | break; | |
726 | ||
727 | if (args[1] == 'v' && isspace (args[2])) | |
728 | { | |
729 | source_verbose = 1; | |
730 | ||
731 | /* Skip passed -v. */ | |
732 | args = &args[3]; | |
733 | } | |
734 | else if (args[1] == 's' && isspace (args[2])) | |
735 | { | |
736 | search_path = 1; | |
16026cd7 | 737 | |
3f7b2faa DE |
738 | /* Skip passed -s. */ |
739 | args = &args[3]; | |
740 | } | |
741 | else | |
742 | break; | |
16026cd7 | 743 | } |
3f7b2faa | 744 | |
529480d0 | 745 | file = skip_spaces (args); |
16026cd7 AS |
746 | } |
747 | ||
3f7b2faa | 748 | source_script_with_search (file, from_tty, search_path); |
16026cd7 AS |
749 | } |
750 | ||
751 | ||
d318976c | 752 | static void |
0b39b52e | 753 | echo_command (const char *text, int from_tty) |
d318976c | 754 | { |
d7561cbb | 755 | const char *p = text; |
d5b5ac79 | 756 | int c; |
d318976c FN |
757 | |
758 | if (text) | |
759 | while ((c = *p++) != '\0') | |
760 | { | |
761 | if (c == '\\') | |
762 | { | |
763 | /* \ at end of argument is used after spaces | |
764 | so they won't be lost. */ | |
765 | if (*p == 0) | |
766 | return; | |
767 | ||
f870a310 | 768 | c = parse_escape (get_current_arch (), &p); |
d318976c FN |
769 | if (c >= 0) |
770 | printf_filtered ("%c", c); | |
771 | } | |
772 | else | |
773 | printf_filtered ("%c", c); | |
774 | } | |
775 | ||
ef1dfa36 TT |
776 | reset_terminal_style (gdb_stdout); |
777 | ||
d318976c FN |
778 | /* Force this output to appear now. */ |
779 | wrap_here (""); | |
780 | gdb_flush (gdb_stdout); | |
781 | } | |
782 | ||
947d3946 PW |
783 | /* Sets the last launched shell command convenience variables based on |
784 | EXIT_STATUS. */ | |
785 | ||
786 | static void | |
787 | exit_status_set_internal_vars (int exit_status) | |
788 | { | |
789 | struct internalvar *var_code = lookup_internalvar ("_shell_exitcode"); | |
790 | struct internalvar *var_signal = lookup_internalvar ("_shell_exitsignal"); | |
791 | ||
792 | clear_internalvar (var_code); | |
793 | clear_internalvar (var_signal); | |
794 | if (WIFEXITED (exit_status)) | |
795 | set_internalvar_integer (var_code, WEXITSTATUS (exit_status)); | |
796 | else if (WIFSIGNALED (exit_status)) | |
797 | set_internalvar_integer (var_signal, WTERMSIG (exit_status)); | |
798 | else | |
422186a9 | 799 | warning (_("unexpected shell command exit status %d"), exit_status); |
947d3946 PW |
800 | } |
801 | ||
d318976c | 802 | static void |
be47f9e8 | 803 | shell_escape (const char *arg, int from_tty) |
d318976c | 804 | { |
9b265ec2 MM |
805 | #if defined(CANT_FORK) || \ |
806 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) | |
d318976c FN |
807 | /* If ARG is NULL, they want an inferior shell, but `system' just |
808 | reports if the shell is available when passed a NULL arg. */ | |
809 | int rc = system (arg ? arg : ""); | |
810 | ||
811 | if (!arg) | |
812 | arg = "inferior shell"; | |
813 | ||
814 | if (rc == -1) | |
c119e040 TT |
815 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, |
816 | safe_strerror (errno)); | |
d318976c | 817 | else if (rc) |
c119e040 | 818 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); |
2584159e | 819 | #ifdef GLOBAL_CURDIR |
ebcd3b23 MS |
820 | /* Make sure to return to the directory GDB thinks it is, in case |
821 | the shell command we just ran changed it. */ | |
d318976c | 822 | chdir (current_directory); |
947d3946 | 823 | exit_status_set_internal_vars (rc); |
d318976c FN |
824 | #endif |
825 | #else /* Can fork. */ | |
5be4dfca | 826 | int status, pid; |
d318976c | 827 | |
325ed089 | 828 | if ((pid = vfork ()) == 0) |
d318976c | 829 | { |
974e6844 | 830 | const char *p, *user_shell = get_shell (); |
30e94205 | 831 | |
614c279d TT |
832 | close_most_fds (); |
833 | ||
ebcd3b23 | 834 | /* Get the name of the shell for arg0. */ |
9f37bbcc | 835 | p = lbasename (user_shell); |
30e94205 | 836 | |
d318976c | 837 | if (!arg) |
36662fde | 838 | execl (user_shell, p, (char *) 0); |
d318976c | 839 | else |
36662fde | 840 | execl (user_shell, p, "-c", arg, (char *) 0); |
d318976c FN |
841 | |
842 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, | |
843 | safe_strerror (errno)); | |
d318976c FN |
844 | _exit (0177); |
845 | } | |
846 | ||
847 | if (pid != -1) | |
5be4dfca | 848 | waitpid (pid, &status, 0); |
d318976c | 849 | else |
8a3fe4f8 | 850 | error (_("Fork failed")); |
947d3946 | 851 | exit_status_set_internal_vars (status); |
d318976c FN |
852 | #endif /* Can fork. */ |
853 | } | |
854 | ||
be47f9e8 PA |
855 | /* Implementation of the "shell" command. */ |
856 | ||
857 | static void | |
0b39b52e | 858 | shell_command (const char *arg, int from_tty) |
be47f9e8 PA |
859 | { |
860 | shell_escape (arg, from_tty); | |
861 | } | |
862 | ||
0378c332 | 863 | static void |
0b39b52e | 864 | edit_command (const char *arg, int from_tty) |
0378c332 | 865 | { |
0378c332 FN |
866 | struct symtab_and_line sal; |
867 | struct symbol *sym; | |
a121b7c1 | 868 | const char *editor; |
0b0865da TT |
869 | char *p; |
870 | const char *fn; | |
0378c332 | 871 | |
d5529a84 | 872 | /* Pull in the current default source line if necessary. */ |
0378c332 | 873 | if (arg == 0) |
53cb0458 FN |
874 | { |
875 | set_default_source_symtab_and_line (); | |
876 | sal = get_current_source_symtab_and_line (); | |
877 | } | |
0378c332 | 878 | |
ebcd3b23 | 879 | /* Bare "edit" edits file with present line. */ |
0378c332 FN |
880 | |
881 | if (arg == 0) | |
882 | { | |
883 | if (sal.symtab == 0) | |
8a3fe4f8 | 884 | error (_("No default source file yet.")); |
0378c332 FN |
885 | sal.line += get_lines_to_list () / 2; |
886 | } | |
887 | else | |
888 | { | |
f2fc3015 | 889 | const char *arg1; |
0378c332 | 890 | |
f00aae0f | 891 | /* Now should only be one argument -- decode it in SAL. */ |
0378c332 | 892 | arg1 = arg; |
ffc2605c TT |
893 | event_location_up location = string_to_event_location (&arg1, |
894 | current_language); | |
6c5b2ebe PA |
895 | std::vector<symtab_and_line> sals = decode_line_1 (location.get (), |
896 | DECODE_LINE_LIST_MODE, | |
897 | NULL, NULL, 0); | |
0378c332 | 898 | |
6c5b2ebe PA |
899 | filter_sals (sals); |
900 | if (sals.empty ()) | |
d5529a84 TT |
901 | { |
902 | /* C++ */ | |
903 | return; | |
904 | } | |
6c5b2ebe | 905 | if (sals.size () > 1) |
d5529a84 | 906 | { |
6c5b2ebe | 907 | ambiguous_line_spec (sals, |
e439fa14 | 908 | _("Specified line is ambiguous:\n")); |
d5529a84 TT |
909 | return; |
910 | } | |
0378c332 | 911 | |
6c5b2ebe | 912 | sal = sals[0]; |
0378c332 FN |
913 | |
914 | if (*arg1) | |
8a3fe4f8 | 915 | error (_("Junk at end of line specification.")); |
0378c332 | 916 | |
ebcd3b23 MS |
917 | /* If line was specified by address, first print exactly which |
918 | line, and which file. In this case, sal.symtab == 0 means | |
919 | address is outside of all known source files, not that user | |
920 | failed to give a filename. */ | |
0378c332 FN |
921 | if (*arg == '*') |
922 | { | |
5af949e3 | 923 | struct gdbarch *gdbarch; |
cdb27c12 | 924 | |
0378c332 | 925 | if (sal.symtab == 0) |
8a3fe4f8 | 926 | error (_("No source file for address %s."), |
2b69941d | 927 | paddress (get_current_arch (), sal.pc)); |
5af949e3 | 928 | |
eb822aa6 | 929 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); |
0378c332 FN |
930 | sym = find_pc_function (sal.pc); |
931 | if (sym) | |
5af949e3 UW |
932 | printf_filtered ("%s is in %s (%s:%d).\n", |
933 | paddress (gdbarch, sal.pc), | |
934 | SYMBOL_PRINT_NAME (sym), | |
05cba821 JK |
935 | symtab_to_filename_for_display (sal.symtab), |
936 | sal.line); | |
0378c332 | 937 | else |
5af949e3 UW |
938 | printf_filtered ("%s is at %s:%d.\n", |
939 | paddress (gdbarch, sal.pc), | |
05cba821 JK |
940 | symtab_to_filename_for_display (sal.symtab), |
941 | sal.line); | |
0378c332 FN |
942 | } |
943 | ||
ebcd3b23 MS |
944 | /* If what was given does not imply a symtab, it must be an |
945 | undebuggable symbol which means no source code. */ | |
0378c332 FN |
946 | |
947 | if (sal.symtab == 0) | |
8a3fe4f8 | 948 | error (_("No line number known for %s."), arg); |
0378c332 FN |
949 | } |
950 | ||
081bca4d TT |
951 | if ((editor = getenv ("EDITOR")) == NULL) |
952 | editor = "/bin/ex"; | |
a955ca71 | 953 | |
f35a17b5 | 954 | fn = symtab_to_fullname (sal.symtab); |
0378c332 | 955 | |
a955ca71 EZ |
956 | /* Quote the file name, in case it has whitespace or other special |
957 | characters. */ | |
958 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); | |
d5529a84 TT |
959 | shell_escape (p, from_tty); |
960 | xfree (p); | |
0378c332 FN |
961 | } |
962 | ||
5f4ba3e7 PA |
963 | /* The options for the "pipe" command. */ |
964 | ||
965 | struct pipe_cmd_opts | |
966 | { | |
967 | /* For "-d". */ | |
968 | char *delimiter = nullptr; | |
969 | ||
970 | ~pipe_cmd_opts () | |
971 | { | |
972 | xfree (delimiter); | |
973 | } | |
974 | }; | |
975 | ||
976 | static const gdb::option::option_def pipe_cmd_option_defs[] = { | |
977 | ||
978 | gdb::option::string_option_def<pipe_cmd_opts> { | |
979 | "d", | |
980 | [] (pipe_cmd_opts *opts) { return &opts->delimiter; }, | |
981 | nullptr, | |
982 | N_("Indicates to use the specified delimiter string to separate\n\ | |
983 | COMMAND from SHELL_COMMAND, in alternative to |. This is useful in\n\ | |
984 | case COMMAND contains a | character."), | |
985 | }, | |
986 | ||
987 | }; | |
988 | ||
989 | /* Create an option_def_group for the "pipe" command's options, with | |
990 | OPTS as context. */ | |
991 | ||
992 | static inline gdb::option::option_def_group | |
993 | make_pipe_cmd_options_def_group (pipe_cmd_opts *opts) | |
994 | { | |
995 | return {{pipe_cmd_option_defs}, opts}; | |
996 | } | |
997 | ||
947d3946 PW |
998 | /* Implementation of the "pipe" command. */ |
999 | ||
1000 | static void | |
1001 | pipe_command (const char *arg, int from_tty) | |
1002 | { | |
5f4ba3e7 | 1003 | pipe_cmd_opts opts; |
947d3946 | 1004 | |
5f4ba3e7 PA |
1005 | auto grp = make_pipe_cmd_options_def_group (&opts); |
1006 | gdb::option::process_options | |
1007 | (&arg, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
1008 | ||
1009 | const char *delim = "|"; | |
1010 | if (opts.delimiter != nullptr) | |
1011 | delim = opts.delimiter; | |
947d3946 PW |
1012 | |
1013 | const char *command = arg; | |
1014 | if (command == nullptr) | |
1015 | error (_("Missing COMMAND")); | |
1016 | ||
5f4ba3e7 | 1017 | arg = strstr (arg, delim); |
947d3946 PW |
1018 | |
1019 | if (arg == nullptr) | |
1020 | error (_("Missing delimiter before SHELL_COMMAND")); | |
1021 | ||
1022 | std::string gdb_cmd (command, arg - command); | |
1023 | ||
5f4ba3e7 | 1024 | arg += strlen (delim); /* Skip the delimiter. */ |
947d3946 PW |
1025 | |
1026 | if (gdb_cmd.empty ()) | |
fdbc9870 | 1027 | gdb_cmd = repeat_previous (); |
947d3946 PW |
1028 | |
1029 | const char *shell_command = skip_spaces (arg); | |
1030 | if (*shell_command == '\0') | |
1031 | error (_("Missing SHELL_COMMAND")); | |
1032 | ||
1033 | FILE *to_shell_command = popen (shell_command, "w"); | |
1034 | ||
1035 | if (to_shell_command == nullptr) | |
1036 | error (_("Error launching \"%s\""), shell_command); | |
1037 | ||
1038 | try | |
1039 | { | |
1040 | stdio_file pipe_file (to_shell_command); | |
1041 | ||
1042 | execute_command_to_ui_file (&pipe_file, gdb_cmd.c_str (), from_tty); | |
1043 | } | |
1044 | catch (...) | |
1045 | { | |
1046 | pclose (to_shell_command); | |
1047 | throw; | |
1048 | } | |
1049 | ||
1050 | int exit_status = pclose (to_shell_command); | |
1051 | ||
1052 | if (exit_status < 0) | |
1053 | error (_("shell command \"%s\" failed: %s"), shell_command, | |
1054 | safe_strerror (errno)); | |
1055 | exit_status_set_internal_vars (exit_status); | |
1056 | } | |
1057 | ||
5f4ba3e7 PA |
1058 | /* Completer for the pipe command. */ |
1059 | ||
1060 | static void | |
1061 | pipe_command_completer (struct cmd_list_element *ignore, | |
1062 | completion_tracker &tracker, | |
1063 | const char *text, const char *word_ignored) | |
1064 | { | |
1065 | pipe_cmd_opts opts; | |
1066 | ||
1067 | const char *org_text = text; | |
1068 | auto grp = make_pipe_cmd_options_def_group (&opts); | |
1069 | if (gdb::option::complete_options | |
1070 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp)) | |
1071 | return; | |
1072 | ||
1073 | const char *delimiter = "|"; | |
1074 | if (opts.delimiter != nullptr) | |
1075 | delimiter = opts.delimiter; | |
1076 | ||
1077 | /* Check if we're past option values already. */ | |
1078 | if (text > org_text && !isspace (text[-1])) | |
1079 | return; | |
1080 | ||
1081 | const char *delim = strstr (text, delimiter); | |
1082 | ||
1083 | /* If we're still not past the delimiter, complete the gdb | |
1084 | command. */ | |
1085 | if (delim == nullptr || delim == text) | |
1086 | { | |
1087 | complete_nested_command_line (tracker, text); | |
1088 | return; | |
1089 | } | |
1090 | ||
1091 | /* We're past the delimiter. What follows is a shell command, which | |
1092 | we don't know how to complete. */ | |
1093 | } | |
1094 | ||
0378c332 | 1095 | static void |
0b39b52e | 1096 | list_command (const char *arg, int from_tty) |
0378c332 | 1097 | { |
0378c332 | 1098 | struct symbol *sym; |
f2fc3015 | 1099 | const char *arg1; |
0378c332 FN |
1100 | int no_end = 1; |
1101 | int dummy_end = 0; | |
1102 | int dummy_beg = 0; | |
1103 | int linenum_beg = 0; | |
0b39b52e | 1104 | const char *p; |
0378c332 | 1105 | |
ebcd3b23 | 1106 | /* Pull in the current default source line if necessary. */ |
a0def019 | 1107 | if (arg == NULL || ((arg[0] == '+' || arg[0] == '-') && arg[1] == '\0')) |
53cb0458 FN |
1108 | { |
1109 | set_default_source_symtab_and_line (); | |
51abb421 | 1110 | symtab_and_line cursal = get_current_source_symtab_and_line (); |
5166082f PA |
1111 | |
1112 | /* If this is the first "list" since we've set the current | |
1113 | source line, center the listing around that line. */ | |
1114 | if (get_first_line_listed () == 0) | |
1115 | { | |
1116 | int first; | |
1117 | ||
325fac50 | 1118 | first = std::max (cursal.line - get_lines_to_list () / 2, 1); |
5166082f PA |
1119 | |
1120 | /* A small special case --- if listing backwards, and we | |
1121 | should list only one line, list the preceding line, | |
1122 | instead of the exact line we've just shown after e.g., | |
1123 | stopping for a breakpoint. */ | |
1124 | if (arg != NULL && arg[0] == '-' | |
1125 | && get_lines_to_list () == 1 && first > 1) | |
1126 | first -= 1; | |
1127 | ||
0e2a2133 | 1128 | print_source_lines (cursal.symtab, source_lines_range (first), 0); |
5166082f | 1129 | } |
0378c332 | 1130 | |
1a48ce76 | 1131 | /* "l" or "l +" lists next ten lines. */ |
a0def019 | 1132 | else if (arg == NULL || arg[0] == '+') |
0e2a2133 AB |
1133 | print_source_lines (cursal.symtab, |
1134 | source_lines_range (cursal.line), 0); | |
0378c332 | 1135 | |
1a48ce76 AB |
1136 | /* "l -" lists previous ten lines, the ones before the ten just |
1137 | listed. */ | |
a0def019 | 1138 | else if (arg[0] == '-') |
3b2464a8 AB |
1139 | { |
1140 | if (get_first_line_listed () == 1) | |
1141 | error (_("Already at the start of %s."), | |
1142 | symtab_to_filename_for_display (cursal.symtab)); | |
0e2a2133 AB |
1143 | source_lines_range range (get_first_line_listed (), |
1144 | source_lines_range::BACKWARD); | |
1145 | print_source_lines (cursal.symtab, range, 0); | |
3b2464a8 | 1146 | } |
0378c332 | 1147 | |
0378c332 FN |
1148 | return; |
1149 | } | |
1150 | ||
1151 | /* Now if there is only one argument, decode it in SAL | |
1152 | and set NO_END. | |
1153 | If there are two arguments, decode them in SAL and SAL_END | |
1154 | and clear NO_END; however, if one of the arguments is blank, | |
1155 | set DUMMY_BEG or DUMMY_END to record that fact. */ | |
1156 | ||
1157 | if (!have_full_symbols () && !have_partial_symbols ()) | |
8a3fe4f8 | 1158 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
0378c332 | 1159 | |
6c5b2ebe | 1160 | std::vector<symtab_and_line> sals; |
51abb421 | 1161 | symtab_and_line sal, sal_end; |
6c5b2ebe | 1162 | |
0378c332 FN |
1163 | arg1 = arg; |
1164 | if (*arg1 == ',') | |
1165 | dummy_beg = 1; | |
1166 | else | |
1167 | { | |
ffc2605c TT |
1168 | event_location_up location = string_to_event_location (&arg1, |
1169 | current_language); | |
1170 | sals = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
1171 | NULL, NULL, 0); | |
6c5b2ebe PA |
1172 | filter_sals (sals); |
1173 | if (sals.empty ()) | |
f00aae0f KS |
1174 | { |
1175 | /* C++ */ | |
f00aae0f KS |
1176 | return; |
1177 | } | |
0378c332 | 1178 | |
6c5b2ebe | 1179 | sal = sals[0]; |
0378c332 FN |
1180 | } |
1181 | ||
1182 | /* Record whether the BEG arg is all digits. */ | |
1183 | ||
1184 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); | |
1185 | linenum_beg = (p == arg1); | |
1186 | ||
e439fa14 PA |
1187 | /* Save the range of the first argument, in case we need to let the |
1188 | user know it was ambiguous. */ | |
1189 | const char *beg = arg; | |
1190 | size_t beg_len = arg1 - beg; | |
1191 | ||
0378c332 FN |
1192 | while (*arg1 == ' ' || *arg1 == '\t') |
1193 | arg1++; | |
1194 | if (*arg1 == ',') | |
1195 | { | |
1196 | no_end = 0; | |
6c5b2ebe | 1197 | if (sals.size () > 1) |
0d999a6e | 1198 | { |
6c5b2ebe | 1199 | ambiguous_line_spec (sals, |
e439fa14 PA |
1200 | _("Specified first line '%.*s' is ambiguous:\n"), |
1201 | (int) beg_len, beg); | |
0d999a6e ZZ |
1202 | return; |
1203 | } | |
0378c332 FN |
1204 | arg1++; |
1205 | while (*arg1 == ' ' || *arg1 == '\t') | |
1206 | arg1++; | |
1207 | if (*arg1 == 0) | |
1208 | dummy_end = 1; | |
1209 | else | |
1210 | { | |
e439fa14 PA |
1211 | /* Save the last argument, in case we need to let the user |
1212 | know it was ambiguous. */ | |
1213 | const char *end_arg = arg1; | |
1214 | ||
ffc2605c TT |
1215 | event_location_up location |
1216 | = string_to_event_location (&arg1, current_language); | |
f00aae0f | 1217 | |
6c5b2ebe PA |
1218 | std::vector<symtab_and_line> sals_end |
1219 | = (dummy_beg | |
1220 | ? decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
1221 | NULL, NULL, 0) | |
1222 | : decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
1223 | NULL, sal.symtab, sal.line)); | |
1224 | ||
1225 | filter_sals (sals_end); | |
1226 | if (sals_end.empty ()) | |
1227 | return; | |
1228 | if (sals_end.size () > 1) | |
0d999a6e | 1229 | { |
6c5b2ebe | 1230 | ambiguous_line_spec (sals_end, |
e439fa14 PA |
1231 | _("Specified last line '%s' is ambiguous:\n"), |
1232 | end_arg); | |
0378c332 FN |
1233 | return; |
1234 | } | |
6c5b2ebe | 1235 | sal_end = sals_end[0]; |
0378c332 FN |
1236 | } |
1237 | } | |
1238 | ||
1239 | if (*arg1) | |
8a3fe4f8 | 1240 | error (_("Junk at end of line specification.")); |
0378c332 FN |
1241 | |
1242 | if (!no_end && !dummy_beg && !dummy_end | |
1243 | && sal.symtab != sal_end.symtab) | |
e439fa14 | 1244 | error (_("Specified first and last lines are in different files.")); |
0378c332 | 1245 | if (dummy_beg && dummy_end) |
8a3fe4f8 | 1246 | error (_("Two empty args do not say what lines to list.")); |
0378c332 | 1247 | |
ebcd3b23 | 1248 | /* If line was specified by address, |
0378c332 | 1249 | first print exactly which line, and which file. |
ebcd3b23 MS |
1250 | |
1251 | In this case, sal.symtab == 0 means address is outside of all | |
1252 | known source files, not that user failed to give a filename. */ | |
0378c332 FN |
1253 | if (*arg == '*') |
1254 | { | |
5af949e3 | 1255 | struct gdbarch *gdbarch; |
cdb27c12 | 1256 | |
0378c332 | 1257 | if (sal.symtab == 0) |
8a3fe4f8 | 1258 | error (_("No source file for address %s."), |
2b69941d | 1259 | paddress (get_current_arch (), sal.pc)); |
5af949e3 | 1260 | |
eb822aa6 | 1261 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); |
0378c332 FN |
1262 | sym = find_pc_function (sal.pc); |
1263 | if (sym) | |
50ee7535 | 1264 | printf_filtered ("%s is in %s (%s:%d).\n", |
5af949e3 UW |
1265 | paddress (gdbarch, sal.pc), |
1266 | SYMBOL_PRINT_NAME (sym), | |
05cba821 | 1267 | symtab_to_filename_for_display (sal.symtab), sal.line); |
0378c332 | 1268 | else |
5af949e3 UW |
1269 | printf_filtered ("%s is at %s:%d.\n", |
1270 | paddress (gdbarch, sal.pc), | |
05cba821 | 1271 | symtab_to_filename_for_display (sal.symtab), sal.line); |
0378c332 FN |
1272 | } |
1273 | ||
ebcd3b23 MS |
1274 | /* If line was not specified by just a line number, and it does not |
1275 | imply a symtab, it must be an undebuggable symbol which means no | |
1276 | source code. */ | |
0378c332 FN |
1277 | |
1278 | if (!linenum_beg && sal.symtab == 0) | |
8a3fe4f8 | 1279 | error (_("No line number known for %s."), arg); |
0378c332 FN |
1280 | |
1281 | /* If this command is repeated with RET, | |
1282 | turn it into the no-arg variant. */ | |
1283 | ||
1284 | if (from_tty) | |
85c4be7c | 1285 | set_repeat_arguments (""); |
0378c332 FN |
1286 | |
1287 | if (dummy_beg && sal_end.symtab == 0) | |
8a3fe4f8 | 1288 | error (_("No default source file yet. Do \"help list\".")); |
0378c332 | 1289 | if (dummy_beg) |
0e2a2133 AB |
1290 | { |
1291 | source_lines_range range (sal_end.line + 1, | |
1292 | source_lines_range::BACKWARD); | |
1293 | print_source_lines (sal_end.symtab, range, 0); | |
1294 | } | |
0378c332 | 1295 | else if (sal.symtab == 0) |
8a3fe4f8 | 1296 | error (_("No default source file yet. Do \"help list\".")); |
0378c332 FN |
1297 | else if (no_end) |
1298 | { | |
6c5b2ebe | 1299 | for (int i = 0; i < sals.size (); i++) |
0d999a6e | 1300 | { |
6c5b2ebe | 1301 | sal = sals[i]; |
0d999a6e ZZ |
1302 | int first_line = sal.line - get_lines_to_list () / 2; |
1303 | if (first_line < 1) | |
1304 | first_line = 1; | |
6c5b2ebe | 1305 | if (sals.size () > 1) |
06871ae8 | 1306 | print_sal_location (sal); |
0e2a2133 | 1307 | print_source_lines (sal.symtab, source_lines_range (first_line), 0); |
0d999a6e | 1308 | } |
0378c332 | 1309 | } |
0e2a2133 AB |
1310 | else if (dummy_end) |
1311 | print_source_lines (sal.symtab, source_lines_range (sal.line), 0); | |
0378c332 | 1312 | else |
0e2a2133 AB |
1313 | print_source_lines (sal.symtab, |
1314 | source_lines_range (sal.line, (sal_end.line + 1)), | |
0378c332 FN |
1315 | 0); |
1316 | } | |
1317 | ||
d14508fe DE |
1318 | /* Subroutine of disassemble_command to simplify it. |
1319 | Perform the disassembly. | |
1320 | NAME is the name of the function if known, or NULL. | |
1321 | [LOW,HIGH) are the range of addresses to disassemble. | |
e9480230 KB |
1322 | BLOCK is the block to disassemble; it needs to be provided |
1323 | when non-contiguous blocks are disassembled; otherwise | |
1324 | it can be NULL. | |
d14508fe DE |
1325 | MIXED is non-zero to print source with the assembler. */ |
1326 | ||
1327 | static void | |
13274fc3 | 1328 | print_disassembly (struct gdbarch *gdbarch, const char *name, |
9a24775b | 1329 | CORE_ADDR low, CORE_ADDR high, |
e9480230 | 1330 | const struct block *block, |
9a24775b | 1331 | gdb_disassembly_flags flags) |
d14508fe DE |
1332 | { |
1333 | #if defined(TUI) | |
1334 | if (!tui_is_window_visible (DISASSEM_WIN)) | |
1335 | #endif | |
1336 | { | |
1337 | printf_filtered ("Dump of assembler code "); | |
1338 | if (name != NULL) | |
e9480230 KB |
1339 | printf_filtered ("for function %s:\n", name); |
1340 | if (block == nullptr || BLOCK_CONTIGUOUS_P (block)) | |
1341 | { | |
1342 | if (name == NULL) | |
1343 | printf_filtered ("from %s to %s:\n", | |
1344 | paddress (gdbarch, low), paddress (gdbarch, high)); | |
d14508fe | 1345 | |
e9480230 KB |
1346 | /* Dump the specified range. */ |
1347 | gdb_disassembly (gdbarch, current_uiout, flags, -1, low, high); | |
1348 | } | |
1349 | else | |
1350 | { | |
1351 | for (int i = 0; i < BLOCK_NRANGES (block); i++) | |
1352 | { | |
b926417a TT |
1353 | CORE_ADDR range_low = BLOCK_RANGE_START (block, i); |
1354 | CORE_ADDR range_high = BLOCK_RANGE_END (block, i); | |
e9480230 | 1355 | printf_filtered (_("Address range %s to %s:\n"), |
b926417a TT |
1356 | paddress (gdbarch, range_low), |
1357 | paddress (gdbarch, range_high)); | |
1358 | gdb_disassembly (gdbarch, current_uiout, flags, -1, | |
1359 | range_low, range_high); | |
e9480230 KB |
1360 | } |
1361 | } | |
d14508fe | 1362 | printf_filtered ("End of assembler dump.\n"); |
d14508fe DE |
1363 | } |
1364 | #if defined(TUI) | |
1365 | else | |
1366 | { | |
13274fc3 | 1367 | tui_show_assembly (gdbarch, low); |
d14508fe DE |
1368 | } |
1369 | #endif | |
1370 | } | |
1371 | ||
1372 | /* Subroutine of disassemble_command to simplify it. | |
9c419145 | 1373 | Print a disassembly of the current function according to FLAGS. */ |
d14508fe DE |
1374 | |
1375 | static void | |
9a24775b | 1376 | disassemble_current_function (gdb_disassembly_flags flags) |
d14508fe | 1377 | { |
13274fc3 UW |
1378 | struct frame_info *frame; |
1379 | struct gdbarch *gdbarch; | |
d14508fe | 1380 | CORE_ADDR low, high, pc; |
2c02bd72 | 1381 | const char *name; |
e9480230 | 1382 | const struct block *block; |
d14508fe | 1383 | |
13274fc3 UW |
1384 | frame = get_selected_frame (_("No frame selected.")); |
1385 | gdbarch = get_frame_arch (frame); | |
9bf4bce9 | 1386 | pc = get_frame_address_in_block (frame); |
e9480230 | 1387 | if (find_pc_partial_function (pc, &name, &low, &high, &block) == 0) |
d14508fe DE |
1388 | error (_("No function contains program counter for selected frame.")); |
1389 | #if defined(TUI) | |
1390 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
1391 | `tui_version'. */ | |
1392 | if (tui_active) | |
1393 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
13274fc3 | 1394 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
d14508fe | 1395 | #endif |
13274fc3 | 1396 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
d14508fe | 1397 | |
e9480230 | 1398 | print_disassembly (gdbarch, name, low, high, block, flags); |
d14508fe DE |
1399 | } |
1400 | ||
1401 | /* Dump a specified section of assembly code. | |
1402 | ||
1403 | Usage: | |
6ff0ba5f | 1404 | disassemble [/mrs] |
d14508fe | 1405 | - dump the assembly code for the function of the current pc |
6ff0ba5f | 1406 | disassemble [/mrs] addr |
d14508fe | 1407 | - dump the assembly code for the function at ADDR |
6ff0ba5f DE |
1408 | disassemble [/mrs] low,high |
1409 | disassemble [/mrs] low,+length | |
53a71c06 | 1410 | - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length) |
d14508fe | 1411 | |
6ff0ba5f DE |
1412 | A /m modifier will include source code with the assembly in a |
1413 | "source centric" view. This view lists only the file of the first insn, | |
1414 | even if other source files are involved (e.g., inlined functions), and | |
1415 | the output is in source order, even with optimized code. This view is | |
1416 | considered deprecated as it hasn't been useful in practice. | |
1417 | ||
1418 | A /r modifier will include raw instructions in hex with the assembly. | |
1419 | ||
1420 | A /s modifier will include source code with the assembly, like /m, with | |
1421 | two important differences: | |
1422 | 1) The output is still in pc address order. | |
1423 | 2) File names and contents for all relevant source files are displayed. */ | |
83c31e7d | 1424 | |
83c31e7d | 1425 | static void |
0b39b52e | 1426 | disassemble_command (const char *arg, int from_tty) |
83c31e7d | 1427 | { |
13274fc3 | 1428 | struct gdbarch *gdbarch = get_current_arch (); |
83c31e7d | 1429 | CORE_ADDR low, high; |
2c02bd72 | 1430 | const char *name; |
d36fc00b | 1431 | CORE_ADDR pc; |
9a24775b | 1432 | gdb_disassembly_flags flags; |
bbc13ae3 | 1433 | const char *p; |
e9480230 | 1434 | const struct block *block = nullptr; |
83c31e7d | 1435 | |
bbc13ae3 | 1436 | p = arg; |
83c31e7d | 1437 | name = NULL; |
e6158f16 | 1438 | flags = 0; |
d14508fe | 1439 | |
bbc13ae3 | 1440 | if (p && *p == '/') |
83c31e7d | 1441 | { |
bbc13ae3 | 1442 | ++p; |
d14508fe | 1443 | |
bbc13ae3 | 1444 | if (*p == '\0') |
d14508fe DE |
1445 | error (_("Missing modifier.")); |
1446 | ||
bbc13ae3 | 1447 | while (*p && ! isspace (*p)) |
d14508fe | 1448 | { |
bbc13ae3 | 1449 | switch (*p++) |
d14508fe DE |
1450 | { |
1451 | case 'm': | |
6ff0ba5f | 1452 | flags |= DISASSEMBLY_SOURCE_DEPRECATED; |
e6158f16 HZ |
1453 | break; |
1454 | case 'r': | |
1455 | flags |= DISASSEMBLY_RAW_INSN; | |
d14508fe | 1456 | break; |
6ff0ba5f DE |
1457 | case 's': |
1458 | flags |= DISASSEMBLY_SOURCE; | |
1459 | break; | |
d14508fe DE |
1460 | default: |
1461 | error (_("Invalid disassembly modifier.")); | |
1462 | } | |
1463 | } | |
1464 | ||
f1735a53 | 1465 | p = skip_spaces (p); |
d14508fe DE |
1466 | } |
1467 | ||
6ff0ba5f DE |
1468 | if ((flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
1469 | == (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) | |
1470 | error (_("Cannot specify both /m and /s.")); | |
1471 | ||
bbc13ae3 | 1472 | if (! p || ! *p) |
d14508fe | 1473 | { |
9c419145 | 1474 | flags |= DISASSEMBLY_OMIT_FNAME; |
e6158f16 | 1475 | disassemble_current_function (flags); |
d14508fe | 1476 | return; |
83c31e7d | 1477 | } |
d14508fe | 1478 | |
bbc13ae3 KS |
1479 | pc = value_as_address (parse_to_comma_and_eval (&p)); |
1480 | if (p[0] == ',') | |
1481 | ++p; | |
1482 | if (p[0] == '\0') | |
83c31e7d FN |
1483 | { |
1484 | /* One argument. */ | |
e9480230 | 1485 | if (find_pc_partial_function (pc, &name, &low, &high, &block) == 0) |
8a3fe4f8 | 1486 | error (_("No function contains specified address.")); |
83c31e7d | 1487 | #if defined(TUI) |
021e7609 AC |
1488 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1489 | `tui_version'. */ | |
22940a24 AC |
1490 | if (tui_active) |
1491 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
13274fc3 | 1492 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
83c31e7d | 1493 | #endif |
13274fc3 | 1494 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
9c419145 | 1495 | flags |= DISASSEMBLY_OMIT_FNAME; |
83c31e7d FN |
1496 | } |
1497 | else | |
1498 | { | |
1499 | /* Two arguments. */ | |
53a71c06 | 1500 | int incl_flag = 0; |
21a0512e | 1501 | low = pc; |
f1735a53 | 1502 | p = skip_spaces (p); |
bbc13ae3 | 1503 | if (p[0] == '+') |
53a71c06 | 1504 | { |
bbc13ae3 | 1505 | ++p; |
53a71c06 CR |
1506 | incl_flag = 1; |
1507 | } | |
bbc13ae3 | 1508 | high = parse_and_eval_address (p); |
53a71c06 CR |
1509 | if (incl_flag) |
1510 | high += low; | |
83c31e7d FN |
1511 | } |
1512 | ||
e9480230 | 1513 | print_disassembly (gdbarch, name, low, high, block, flags); |
83c31e7d FN |
1514 | } |
1515 | ||
d318976c | 1516 | static void |
0b39b52e | 1517 | make_command (const char *arg, int from_tty) |
d318976c | 1518 | { |
d318976c | 1519 | if (arg == 0) |
be47f9e8 | 1520 | shell_escape ("make", from_tty); |
d318976c FN |
1521 | else |
1522 | { | |
be47f9e8 | 1523 | std::string cmd = std::string ("make ") + arg; |
d318976c | 1524 | |
be47f9e8 PA |
1525 | shell_escape (cmd.c_str (), from_tty); |
1526 | } | |
d318976c FN |
1527 | } |
1528 | ||
d318976c | 1529 | static void |
dede02ce | 1530 | show_user (const char *args, int from_tty) |
d318976c FN |
1531 | { |
1532 | struct cmd_list_element *c; | |
1533 | extern struct cmd_list_element *cmdlist; | |
1534 | ||
1535 | if (args) | |
1536 | { | |
6f937416 | 1537 | const char *comname = args; |
cdb27c12 | 1538 | |
adb483fe | 1539 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); |
a9f116cb | 1540 | if (!cli_user_command_p (c)) |
8a3fe4f8 | 1541 | error (_("Not a user command.")); |
adb483fe | 1542 | show_user_1 (c, "", args, gdb_stdout); |
d318976c FN |
1543 | } |
1544 | else | |
1545 | { | |
1546 | for (c = cmdlist; c; c = c->next) | |
1547 | { | |
a9f116cb | 1548 | if (cli_user_command_p (c) || c->prefixlist != NULL) |
adb483fe | 1549 | show_user_1 (c, "", c->name, gdb_stdout); |
d318976c FN |
1550 | } |
1551 | } | |
1552 | } | |
1553 | ||
1554 | /* Search through names of commands and documentations for a certain | |
ebcd3b23 MS |
1555 | regular expression. */ |
1556 | ||
66d8c862 PW |
1557 | static void |
1558 | apropos_command (const char *arg, int from_tty) | |
d318976c | 1559 | { |
66d8c862 PW |
1560 | bool verbose = arg && check_for_argument (&arg, "-v", 2); |
1561 | ||
66d8c862 | 1562 | if (arg == NULL || *arg == '\0') |
f55af66d | 1563 | error (_("REGEXP string is empty")); |
d318976c | 1564 | |
66d8c862 | 1565 | compiled_regex pattern (arg, REG_ICASE, |
2d7cc5c7 | 1566 | _("Error in regular expression")); |
dc92e161 | 1567 | |
66d8c862 | 1568 | apropos_cmd (gdb_stdout, cmdlist, verbose, pattern, ""); |
d318976c | 1569 | } |
5a56e9c5 DE |
1570 | |
1571 | /* Subroutine of alias_command to simplify it. | |
1572 | Return the first N elements of ARGV flattened back to a string | |
1573 | with a space separating each element. | |
1574 | ARGV may not be NULL. | |
1575 | This does not take care of quoting elements in case they contain spaces | |
1576 | on purpose. */ | |
1577 | ||
a97e29d2 TT |
1578 | static std::string |
1579 | argv_to_string (char **argv, int n) | |
5a56e9c5 DE |
1580 | { |
1581 | int i; | |
a97e29d2 | 1582 | std::string result; |
5a56e9c5 DE |
1583 | |
1584 | gdb_assert (argv != NULL); | |
1585 | gdb_assert (n >= 0 && n <= countargv (argv)); | |
1586 | ||
1587 | for (i = 0; i < n; ++i) | |
1588 | { | |
1589 | if (i > 0) | |
a97e29d2 TT |
1590 | result += " "; |
1591 | result += argv[i]; | |
5a56e9c5 DE |
1592 | } |
1593 | ||
1594 | return result; | |
1595 | } | |
1596 | ||
1597 | /* Subroutine of alias_command to simplify it. | |
6fe87677 | 1598 | Return true if COMMAND exists, unambiguously. Otherwise false. */ |
5a56e9c5 | 1599 | |
6fe87677 | 1600 | static bool |
6f937416 | 1601 | valid_command_p (const char *command) |
5a56e9c5 DE |
1602 | { |
1603 | struct cmd_list_element *c; | |
1604 | ||
1605 | c = lookup_cmd_1 (& command, cmdlist, NULL, 1); | |
1606 | ||
1607 | if (c == NULL || c == (struct cmd_list_element *) -1) | |
6fe87677 | 1608 | return false; |
5a56e9c5 DE |
1609 | |
1610 | /* This is the slightly tricky part. | |
1611 | lookup_cmd_1 will return a pointer to the last part of COMMAND | |
1612 | to match, leaving COMMAND pointing at the remainder. */ | |
1613 | while (*command == ' ' || *command == '\t') | |
1614 | ++command; | |
1615 | return *command == '\0'; | |
1616 | } | |
1617 | ||
7f31862a PA |
1618 | /* Called when "alias" was incorrectly used. */ |
1619 | ||
1620 | static void | |
1621 | alias_usage_error (void) | |
1622 | { | |
1623 | error (_("Usage: alias [-a] [--] ALIAS = COMMAND")); | |
1624 | } | |
1625 | ||
5a56e9c5 DE |
1626 | /* Make an alias of an existing command. */ |
1627 | ||
1628 | static void | |
0b39b52e | 1629 | alias_command (const char *args, int from_tty) |
5a56e9c5 DE |
1630 | { |
1631 | int i, alias_argc, command_argc; | |
1632 | int abbrev_flag = 0; | |
0b39b52e | 1633 | const char *equals; |
a97e29d2 | 1634 | const char *alias, *command; |
5a56e9c5 DE |
1635 | |
1636 | if (args == NULL || strchr (args, '=') == NULL) | |
7f31862a | 1637 | alias_usage_error (); |
5a56e9c5 | 1638 | |
773a1edc TT |
1639 | equals = strchr (args, '='); |
1640 | std::string args2 (args, equals - args); | |
1641 | ||
1642 | gdb_argv built_alias_argv (args2.c_str ()); | |
1643 | gdb_argv command_argv (equals + 1); | |
5a56e9c5 | 1644 | |
773a1edc TT |
1645 | char **alias_argv = built_alias_argv.get (); |
1646 | while (alias_argv[0] != NULL) | |
5a56e9c5 | 1647 | { |
773a1edc | 1648 | if (strcmp (alias_argv[0], "-a") == 0) |
5a56e9c5 DE |
1649 | { |
1650 | ++alias_argv; | |
1651 | abbrev_flag = 1; | |
1652 | } | |
773a1edc | 1653 | else if (strcmp (alias_argv[0], "--") == 0) |
5a56e9c5 DE |
1654 | { |
1655 | ++alias_argv; | |
1656 | break; | |
1657 | } | |
1658 | else | |
1659 | break; | |
1660 | } | |
1661 | ||
1662 | if (alias_argv[0] == NULL || command_argv[0] == NULL | |
1663 | || *alias_argv[0] == '\0' || *command_argv[0] == '\0') | |
7f31862a | 1664 | alias_usage_error (); |
5a56e9c5 DE |
1665 | |
1666 | for (i = 0; alias_argv[i] != NULL; ++i) | |
1667 | { | |
1668 | if (! valid_user_defined_cmd_name_p (alias_argv[i])) | |
1669 | { | |
1670 | if (i == 0) | |
1671 | error (_("Invalid command name: %s"), alias_argv[i]); | |
1672 | else | |
1673 | error (_("Invalid command element name: %s"), alias_argv[i]); | |
1674 | } | |
1675 | } | |
1676 | ||
1677 | alias_argc = countargv (alias_argv); | |
773a1edc | 1678 | command_argc = command_argv.count (); |
5a56e9c5 DE |
1679 | |
1680 | /* COMMAND must exist. | |
1681 | Reconstruct the command to remove any extraneous spaces, | |
1682 | for better error messages. */ | |
773a1edc TT |
1683 | std::string command_string (argv_to_string (command_argv.get (), |
1684 | command_argc)); | |
a97e29d2 | 1685 | command = command_string.c_str (); |
5a56e9c5 DE |
1686 | if (! valid_command_p (command)) |
1687 | error (_("Invalid command to alias to: %s"), command); | |
1688 | ||
1689 | /* ALIAS must not exist. */ | |
a97e29d2 TT |
1690 | std::string alias_string (argv_to_string (alias_argv, alias_argc)); |
1691 | alias = alias_string.c_str (); | |
5a56e9c5 DE |
1692 | if (valid_command_p (alias)) |
1693 | error (_("Alias already exists: %s"), alias); | |
1694 | ||
1695 | /* If ALIAS is one word, it is an alias for the entire COMMAND. | |
1696 | Example: alias spe = set print elements | |
1697 | ||
1698 | Otherwise ALIAS and COMMAND must have the same number of words, | |
b65b566c PW |
1699 | and every word except the last must identify the same prefix command; |
1700 | and the last word of ALIAS is made an alias of the last word of COMMAND. | |
5a56e9c5 DE |
1701 | Example: alias set print elms = set pr elem |
1702 | Note that unambiguous abbreviations are allowed. */ | |
1703 | ||
1704 | if (alias_argc == 1) | |
1705 | { | |
1706 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1707 | add_com_alias (xstrdup (alias_argv[0]), command, class_alias, | |
1708 | abbrev_flag); | |
1709 | } | |
1710 | else | |
1711 | { | |
6f937416 | 1712 | const char *alias_prefix, *command_prefix; |
5a56e9c5 DE |
1713 | struct cmd_list_element *c_alias, *c_command; |
1714 | ||
1715 | if (alias_argc != command_argc) | |
1716 | error (_("Mismatched command length between ALIAS and COMMAND.")); | |
1717 | ||
1718 | /* Create copies of ALIAS and COMMAND without the last word, | |
b65b566c PW |
1719 | and use that to verify the leading elements give the same |
1720 | prefix command. */ | |
a97e29d2 TT |
1721 | std::string alias_prefix_string (argv_to_string (alias_argv, |
1722 | alias_argc - 1)); | |
b65b566c | 1723 | std::string command_prefix_string (argv_to_string (command_argv.get (), |
a97e29d2 TT |
1724 | command_argc - 1)); |
1725 | alias_prefix = alias_prefix_string.c_str (); | |
1726 | command_prefix = command_prefix_string.c_str (); | |
5a56e9c5 DE |
1727 | |
1728 | c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1); | |
1729 | /* We've already tried to look up COMMAND. */ | |
1730 | gdb_assert (c_command != NULL | |
1731 | && c_command != (struct cmd_list_element *) -1); | |
1732 | gdb_assert (c_command->prefixlist != NULL); | |
1733 | c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1); | |
1734 | if (c_alias != c_command) | |
1735 | error (_("ALIAS and COMMAND prefixes do not match.")); | |
1736 | ||
1737 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1738 | add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]), | |
1739 | command_argv[command_argc - 1], | |
1740 | class_alias, abbrev_flag, c_command->prefixlist); | |
1741 | } | |
1742 | } | |
d318976c | 1743 | \f |
06871ae8 PA |
1744 | /* Print the file / line number / symbol name of the location |
1745 | specified by SAL. */ | |
1746 | ||
1747 | static void | |
1748 | print_sal_location (const symtab_and_line &sal) | |
1749 | { | |
1750 | scoped_restore_current_program_space restore_pspace; | |
1751 | set_current_program_space (sal.pspace); | |
1752 | ||
1753 | const char *sym_name = NULL; | |
1754 | if (sal.symbol != NULL) | |
1755 | sym_name = SYMBOL_PRINT_NAME (sal.symbol); | |
1756 | printf_filtered (_("file: \"%s\", line number: %d, symbol: \"%s\"\n"), | |
1757 | symtab_to_filename_for_display (sal.symtab), | |
1758 | sal.line, sym_name != NULL ? sym_name : "???"); | |
1759 | } | |
1760 | ||
0378c332 | 1761 | /* Print a list of files and line numbers which a user may choose from |
ebcd3b23 | 1762 | in order to list a function which was specified ambiguously (as |
6c5b2ebe PA |
1763 | with `list classname::overloadedfuncname', for example). The SALS |
1764 | array provides the filenames and line numbers. FORMAT is a | |
1765 | printf-style format string used to tell the user what was | |
e439fa14 | 1766 | ambiguous. */ |
0378c332 FN |
1767 | |
1768 | static void | |
6c5b2ebe PA |
1769 | ambiguous_line_spec (gdb::array_view<const symtab_and_line> sals, |
1770 | const char *format, ...) | |
0378c332 | 1771 | { |
e439fa14 PA |
1772 | va_list ap; |
1773 | va_start (ap, format); | |
1774 | vprintf_filtered (format, ap); | |
1775 | va_end (ap); | |
1776 | ||
6c5b2ebe | 1777 | for (const auto &sal : sals) |
06871ae8 | 1778 | print_sal_location (sal); |
0378c332 FN |
1779 | } |
1780 | ||
6c5b2ebe PA |
1781 | /* Comparison function for filter_sals. Returns a qsort-style |
1782 | result. */ | |
f8eba3c6 TT |
1783 | |
1784 | static int | |
6c5b2ebe | 1785 | cmp_symtabs (const symtab_and_line &sala, const symtab_and_line &salb) |
f8eba3c6 | 1786 | { |
6c5b2ebe PA |
1787 | const char *dira = SYMTAB_DIRNAME (sala.symtab); |
1788 | const char *dirb = SYMTAB_DIRNAME (salb.symtab); | |
f8eba3c6 TT |
1789 | int r; |
1790 | ||
ee6f8984 | 1791 | if (dira == NULL) |
f8eba3c6 | 1792 | { |
ee6f8984 | 1793 | if (dirb != NULL) |
f8eba3c6 TT |
1794 | return -1; |
1795 | } | |
ee6f8984 | 1796 | else if (dirb == NULL) |
f8eba3c6 | 1797 | { |
ee6f8984 | 1798 | if (dira != NULL) |
f8eba3c6 TT |
1799 | return 1; |
1800 | } | |
1801 | else | |
1802 | { | |
ee6f8984 | 1803 | r = filename_cmp (dira, dirb); |
f8eba3c6 TT |
1804 | if (r) |
1805 | return r; | |
1806 | } | |
1807 | ||
6c5b2ebe | 1808 | r = filename_cmp (sala.symtab->filename, salb.symtab->filename); |
f8eba3c6 TT |
1809 | if (r) |
1810 | return r; | |
1811 | ||
6c5b2ebe | 1812 | if (sala.line < salb.line) |
f8eba3c6 | 1813 | return -1; |
6c5b2ebe | 1814 | return sala.line == salb.line ? 0 : 1; |
f8eba3c6 TT |
1815 | } |
1816 | ||
1817 | /* Remove any SALs that do not match the current program space, or | |
1818 | which appear to be "file:line" duplicates. */ | |
1819 | ||
1820 | static void | |
6c5b2ebe | 1821 | filter_sals (std::vector<symtab_and_line> &sals) |
f8eba3c6 | 1822 | { |
6c5b2ebe PA |
1823 | /* Remove SALs that do not match. */ |
1824 | auto from = std::remove_if (sals.begin (), sals.end (), | |
1825 | [&] (const symtab_and_line &sal) | |
1826 | { return (sal.pspace != current_program_space || sal.symtab == NULL); }); | |
1827 | ||
1828 | /* Remove dups. */ | |
1829 | std::sort (sals.begin (), from, | |
1830 | [] (const symtab_and_line &sala, const symtab_and_line &salb) | |
1831 | { return cmp_symtabs (sala, salb) < 0; }); | |
1832 | ||
1833 | from = std::unique (sals.begin (), from, | |
1834 | [&] (const symtab_and_line &sala, | |
1835 | const symtab_and_line &salb) | |
1836 | { return cmp_symtabs (sala, salb) == 0; }); | |
1837 | ||
1838 | sals.erase (from, sals.end ()); | |
f8eba3c6 TT |
1839 | } |
1840 | ||
d318976c | 1841 | static void |
981a3fb3 | 1842 | set_debug (const char *arg, int from_tty) |
d318976c | 1843 | { |
9a2b4c1b MS |
1844 | printf_unfiltered (_("\"set debug\" must be followed by " |
1845 | "the name of a debug subcommand.\n")); | |
635c7e8a | 1846 | help_list (setdebuglist, "set debug ", all_commands, gdb_stdout); |
d318976c FN |
1847 | } |
1848 | ||
1849 | static void | |
981a3fb3 | 1850 | show_debug (const char *args, int from_tty) |
d318976c FN |
1851 | { |
1852 | cmd_show_list (showdebuglist, from_tty, ""); | |
1853 | } | |
1854 | ||
1855 | void | |
1856 | init_cmd_lists (void) | |
1857 | { | |
20f01a46 | 1858 | max_user_call_depth = 1024; |
d318976c FN |
1859 | } |
1860 | ||
920d2a44 AC |
1861 | static void |
1862 | show_info_verbose (struct ui_file *file, int from_tty, | |
1863 | struct cmd_list_element *c, | |
1864 | const char *value) | |
1865 | { | |
1866 | if (info_verbose) | |
9a2b4c1b MS |
1867 | fprintf_filtered (file, |
1868 | _("Verbose printing of informational messages is %s.\n"), | |
1869 | value); | |
920d2a44 AC |
1870 | else |
1871 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); | |
1872 | } | |
1873 | ||
1874 | static void | |
1875 | show_history_expansion_p (struct ui_file *file, int from_tty, | |
1876 | struct cmd_list_element *c, const char *value) | |
1877 | { | |
1878 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), | |
1879 | value); | |
1880 | } | |
1881 | ||
920d2a44 AC |
1882 | static void |
1883 | show_remote_debug (struct ui_file *file, int from_tty, | |
1884 | struct cmd_list_element *c, const char *value) | |
1885 | { | |
1886 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), | |
1887 | value); | |
1888 | } | |
1889 | ||
1890 | static void | |
1891 | show_remote_timeout (struct ui_file *file, int from_tty, | |
1892 | struct cmd_list_element *c, const char *value) | |
1893 | { | |
9a2b4c1b MS |
1894 | fprintf_filtered (file, |
1895 | _("Timeout limit to wait for target to respond is %s.\n"), | |
920d2a44 AC |
1896 | value); |
1897 | } | |
1898 | ||
1899 | static void | |
1900 | show_max_user_call_depth (struct ui_file *file, int from_tty, | |
1901 | struct cmd_list_element *c, const char *value) | |
1902 | { | |
9a2b4c1b MS |
1903 | fprintf_filtered (file, |
1904 | _("The max call depth for user-defined commands is %s.\n"), | |
920d2a44 AC |
1905 | value); |
1906 | } | |
1907 | ||
d318976c | 1908 | void |
43e4916f | 1909 | _initialize_cli_cmds (void) |
d318976c FN |
1910 | { |
1911 | struct cmd_list_element *c; | |
1912 | ||
1913 | /* Define the classes of commands. | |
1bfeeb0f | 1914 | They will appear in the help list in alphabetical order. */ |
d318976c | 1915 | |
0450cc4c | 1916 | add_cmd ("internals", class_maintenance, _("\ |
1a966eab | 1917 | Maintenance commands.\n\ |
d318976c FN |
1918 | Some gdb commands are provided just for use by gdb maintainers.\n\ |
1919 | These commands are subject to frequent change, and may not be as\n\ | |
1a966eab | 1920 | well documented as user commands."), |
d318976c | 1921 | &cmdlist); |
0450cc4c TT |
1922 | add_cmd ("obscure", class_obscure, _("Obscure features."), &cmdlist); |
1923 | add_cmd ("aliases", class_alias, | |
9a2b4c1b | 1924 | _("Aliases of other commands."), &cmdlist); |
0450cc4c | 1925 | add_cmd ("user-defined", class_user, _("\ |
1a966eab | 1926 | User-defined commands.\n\ |
d318976c | 1927 | The commands in this class are those defined by the user.\n\ |
1a966eab | 1928 | Use the \"define\" command to define a command."), &cmdlist); |
0450cc4c | 1929 | add_cmd ("support", class_support, _("Support facilities."), &cmdlist); |
d318976c | 1930 | if (!dbx_commands) |
0450cc4c TT |
1931 | add_cmd ("status", class_info, _("Status inquiries."), &cmdlist); |
1932 | add_cmd ("files", class_files, _("Specifying and examining files."), | |
1a966eab | 1933 | &cmdlist); |
0450cc4c | 1934 | add_cmd ("breakpoints", class_breakpoint, |
1a966eab | 1935 | _("Making program stop at certain points."), &cmdlist); |
0450cc4c TT |
1936 | add_cmd ("data", class_vars, _("Examining data."), &cmdlist); |
1937 | add_cmd ("stack", class_stack, _("\ | |
1a966eab | 1938 | Examining the stack.\n\ |
d318976c FN |
1939 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ |
1940 | counting from zero for the innermost (currently executing) frame.\n\n\ | |
1941 | At any time gdb identifies one frame as the \"selected\" frame.\n\ | |
1942 | Variable lookups are done with respect to the selected frame.\n\ | |
1943 | When the program being debugged stops, gdb selects the innermost frame.\n\ | |
1a966eab | 1944 | The commands below can be used to select other frames by number or address."), |
d318976c | 1945 | &cmdlist); |
0450cc4c | 1946 | add_cmd ("running", class_run, _("Running the program."), &cmdlist); |
d318976c | 1947 | |
ebcd3b23 | 1948 | /* Define general commands. */ |
d318976c | 1949 | |
d729566a | 1950 | add_com ("pwd", class_files, pwd_command, _("\ |
590042fc PW |
1951 | Print working directory.\n\ |
1952 | This is used for your program as well.")); | |
4f8d22e3 | 1953 | |
1a966eab | 1954 | c = add_cmd ("cd", class_files, cd_command, _("\ |
d092c5a2 SDJ |
1955 | Set working directory to DIR for debugger.\n\ |
1956 | The debugger's current working directory specifies where scripts and other\n\ | |
1957 | files that can be loaded by GDB are located.\n\ | |
1958 | In order to change the inferior's current working directory, the recommended\n\ | |
1959 | way is to use the \"set cwd\" command."), &cmdlist); | |
5ba2abeb | 1960 | set_cmd_completer (c, filename_completer); |
d318976c | 1961 | |
1bedd215 AC |
1962 | add_com ("echo", class_support, echo_command, _("\ |
1963 | Print a constant string. Give string as argument.\n\ | |
d318976c FN |
1964 | C escape sequences may be used in the argument.\n\ |
1965 | No newline is added at the end of the argument;\n\ | |
1966 | use \"\\n\" if you want a newline to be printed.\n\ | |
1967 | Since leading and trailing whitespace are ignored in command arguments,\n\ | |
1968 | if you want to print some you must use \"\\\" before leading whitespace\n\ | |
1bedd215 | 1969 | to be printed or after trailing whitespace.")); |
d318976c | 1970 | |
973817a3 JB |
1971 | add_setshow_enum_cmd ("script-extension", class_support, |
1972 | script_ext_enums, &script_ext_mode, _("\ | |
1973 | Set mode for script filename extension recognition."), _("\ | |
1974 | Show mode for script filename extension recognition."), _("\ | |
1975 | off == no filename extension recognition (all sourced files are GDB scripts)\n\ | |
1976 | soft == evaluate script according to filename extension, fallback to GDB script" | |
1977 | "\n\ | |
1978 | strict == evaluate script according to filename extension, error if not supported" | |
1979 | ), | |
1980 | NULL, | |
1981 | show_script_ext_mode, | |
1982 | &setlist, &showlist); | |
1983 | ||
bdb52a22 TT |
1984 | add_com ("quit", class_support, quit_command, _("\ |
1985 | Exit gdb.\n\ | |
1986 | Usage: quit [EXPR]\n\ | |
1987 | The optional expression EXPR, if present, is evaluated and the result\n\ | |
1988 | used as GDB's exit code. The default is zero.")); | |
1bedd215 AC |
1989 | c = add_com ("help", class_support, help_command, |
1990 | _("Print list of commands.")); | |
5ba2abeb | 1991 | set_cmd_completer (c, command_completer); |
d318976c FN |
1992 | add_com_alias ("q", "quit", class_support, 1); |
1993 | add_com_alias ("h", "help", class_support, 1); | |
1994 | ||
5bf193a2 AC |
1995 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ |
1996 | Set verbosity."), _("\ | |
1997 | Show verbosity."), NULL, | |
1998 | set_verbose, | |
920d2a44 | 1999 | show_info_verbose, |
5bf193a2 | 2000 | &setlist, &showlist); |
d318976c FN |
2001 | |
2002 | add_prefix_cmd ("history", class_support, set_history, | |
1bedd215 | 2003 | _("Generic command for setting command history parameters."), |
d318976c FN |
2004 | &sethistlist, "set history ", 0, &setlist); |
2005 | add_prefix_cmd ("history", class_support, show_history, | |
1bedd215 | 2006 | _("Generic command for showing command history parameters."), |
d318976c FN |
2007 | &showhistlist, "show history ", 0, &showlist); |
2008 | ||
5bf193a2 AC |
2009 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ |
2010 | Set history expansion on command input."), _("\ | |
2011 | Show history expansion on command input."), _("\ | |
2012 | Without an argument, history expansion is enabled."), | |
2013 | NULL, | |
920d2a44 | 2014 | show_history_expansion_p, |
5bf193a2 | 2015 | &sethistlist, &showhistlist); |
d318976c | 2016 | |
d729566a | 2017 | add_prefix_cmd ("info", class_info, info_command, _("\ |
1bedd215 | 2018 | Generic command for showing things about the program being debugged."), |
d729566a | 2019 | &infolist, "info ", 0, &cmdlist); |
d318976c | 2020 | add_com_alias ("i", "info", class_info, 1); |
a177aad3 | 2021 | add_com_alias ("inf", "info", class_info, 1); |
d318976c FN |
2022 | |
2023 | add_com ("complete", class_obscure, complete_command, | |
1bedd215 | 2024 | _("List the completions for the rest of the line as a command.")); |
d318976c | 2025 | |
d729566a | 2026 | add_prefix_cmd ("show", class_info, show_command, _("\ |
700b53b1 | 2027 | Generic command for showing things about the debugger."), |
d729566a | 2028 | &showlist, "show ", 0, &cmdlist); |
d318976c | 2029 | /* Another way to get at the same thing. */ |
1bedd215 | 2030 | add_info ("set", show_command, _("Show all GDB settings.")); |
d318976c | 2031 | |
fdbc9870 PA |
2032 | c = add_com ("with", class_vars, with_command, _("\ |
2033 | Temporarily set SETTING to VALUE, run COMMAND, and restore SETTING.\n\ | |
2034 | Usage: with SETTING [VALUE] [-- COMMAND]\n\ | |
2035 | Usage: w SETTING [VALUE] [-- COMMAND]\n\ | |
2036 | With no COMMAND, repeats the last executed command.\n\ | |
2037 | \n\ | |
2038 | SETTING is any setting you can change with the \"set\" subcommands.\n\ | |
2039 | E.g.:\n\ | |
2040 | with language pascal -- print obj\n\ | |
2041 | with print elements unlimited -- print obj\n\ | |
2042 | \n\ | |
2043 | You can change multiple settings using nested with, and use\n\ | |
2044 | abbreviations for commands and/or values. E.g.:\n\ | |
2045 | w la p -- w p el u -- p obj")); | |
2046 | set_cmd_completer_handle_brkchars (c, with_command_completer); | |
2047 | add_com_alias ("w", "with", class_vars, 1); | |
2048 | ||
db5f229b | 2049 | add_cmd ("commands", no_set_class, show_commands, _("\ |
1a966eab | 2050 | Show the history of commands you typed.\n\ |
d318976c | 2051 | You can supply a command number to start with, or a `+' to start after\n\ |
1a966eab | 2052 | the previous command number shown."), |
d318976c FN |
2053 | &showlist); |
2054 | ||
db5f229b | 2055 | add_cmd ("version", no_set_class, show_version, |
1a966eab | 2056 | _("Show what version of GDB this is."), &showlist); |
d318976c | 2057 | |
6eaaf48b EZ |
2058 | add_cmd ("configuration", no_set_class, show_configuration, |
2059 | _("Show how GDB was configured at build time."), &showlist); | |
2060 | ||
85c07804 AC |
2061 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ |
2062 | Set debugging of remote protocol."), _("\ | |
2063 | Show debugging of remote protocol."), _("\ | |
d318976c | 2064 | When enabled, each packet sent or received with the remote target\n\ |
85c07804 AC |
2065 | is displayed."), |
2066 | NULL, | |
920d2a44 | 2067 | show_remote_debug, |
85c07804 | 2068 | &setdebuglist, &showdebuglist); |
d318976c | 2069 | |
6fc1c773 YQ |
2070 | add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class, |
2071 | &remote_timeout, _("\ | |
c0d88b1b AC |
2072 | Set timeout limit to wait for target to respond."), _("\ |
2073 | Show timeout limit to wait for target to respond."), _("\ | |
d318976c | 2074 | This value is used to set the time limit for gdb to wait for a response\n\ |
c0d88b1b | 2075 | from the target."), |
6fc1c773 YQ |
2076 | NULL, |
2077 | show_remote_timeout, | |
2078 | &setlist, &showlist); | |
d318976c FN |
2079 | |
2080 | add_prefix_cmd ("debug", no_class, set_debug, | |
590042fc | 2081 | _("Generic command for setting gdb debugging flags."), |
d318976c FN |
2082 | &setdebuglist, "set debug ", 0, &setlist); |
2083 | ||
2084 | add_prefix_cmd ("debug", no_class, show_debug, | |
590042fc | 2085 | _("Generic command for showing gdb debugging flags."), |
d318976c FN |
2086 | &showdebuglist, "show debug ", 0, &showlist); |
2087 | ||
be47f9e8 | 2088 | c = add_com ("shell", class_support, shell_command, _("\ |
1bedd215 AC |
2089 | Execute the rest of the line as a shell command.\n\ |
2090 | With no arguments, run an inferior shell.")); | |
5ba2abeb | 2091 | set_cmd_completer (c, filename_completer); |
d318976c | 2092 | |
d563b953 PW |
2093 | add_com_alias ("!", "shell", class_support, 0); |
2094 | ||
1bedd215 AC |
2095 | c = add_com ("edit", class_files, edit_command, _("\ |
2096 | Edit specified file or function.\n\ | |
0378c332 | 2097 | With no argument, edits file containing most recent line listed.\n\ |
0378c332 FN |
2098 | Editing targets can be specified in these ways:\n\ |
2099 | FILE:LINENUM, to edit at that line in that file,\n\ | |
2100 | FUNCTION, to edit at the beginning of that function,\n\ | |
2101 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
2102 | *ADDRESS, to edit at the line containing that address.\n\ | |
1bedd215 | 2103 | Uses EDITOR environment variable contents as editor (or ex as default).")); |
0378c332 FN |
2104 | |
2105 | c->completer = location_completer; | |
2106 | ||
947d3946 PW |
2107 | c = add_com ("pipe", class_support, pipe_command, _("\ |
2108 | Send the output of a gdb command to a shell command.\n\ | |
2109 | Usage: | [COMMAND] | SHELL_COMMAND\n\ | |
2110 | Usage: | -d DELIM COMMAND DELIM SHELL_COMMAND\n\ | |
2111 | Usage: pipe [COMMAND] | SHELL_COMMAND\n\ | |
2112 | Usage: pipe -d DELIM COMMAND DELIM SHELL_COMMAND\n\ | |
2113 | \n\ | |
2114 | Executes COMMAND and sends its output to SHELL_COMMAND.\n\ | |
2115 | \n\ | |
2116 | The -d option indicates to use the string DELIM to separate COMMAND\n\ | |
2117 | from SHELL_COMMAND, in alternative to |. This is useful in\n\ | |
2118 | case COMMAND contains a | character.\n\ | |
2119 | \n\ | |
2120 | With no COMMAND, repeat the last executed command\n\ | |
2121 | and send its output to SHELL_COMMAND.")); | |
5f4ba3e7 | 2122 | set_cmd_completer_handle_brkchars (c, pipe_command_completer); |
947d3946 PW |
2123 | add_com_alias ("|", "pipe", class_support, 0); |
2124 | ||
1bedd215 AC |
2125 | add_com ("list", class_files, list_command, _("\ |
2126 | List specified function or line.\n\ | |
0378c332 FN |
2127 | With no argument, lists ten more lines after or around previous listing.\n\ |
2128 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ | |
2129 | One argument specifies a line, and ten lines are listed around that line.\n\ | |
2130 | Two arguments with comma between specify starting and ending lines to list.\n\ | |
0378c332 FN |
2131 | Lines can be specified in these ways:\n\ |
2132 | LINENUM, to list around that line in current file,\n\ | |
2133 | FILE:LINENUM, to list around that line in that file,\n\ | |
2134 | FUNCTION, to list around beginning of that function,\n\ | |
2135 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
2136 | *ADDRESS, to list around the line containing that address.\n\ | |
4fdd372d AB |
2137 | With two args, if one is empty, it stands for ten lines away from\n\ |
2138 | the other arg.\n\ | |
2139 | \n\ | |
2140 | By default, when a single location is given, display ten lines.\n\ | |
2141 | This can be changed using \"set listsize\", and the current value\n\ | |
2142 | can be shown using \"show listsize\".")); | |
0378c332 | 2143 | |
4f45d445 | 2144 | add_com_alias ("l", "list", class_files, 1); |
0378c332 FN |
2145 | |
2146 | if (dbx_commands) | |
2147 | add_com_alias ("file", "list", class_files, 1); | |
2148 | ||
1bedd215 AC |
2149 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ |
2150 | Disassemble a specified section of memory.\n\ | |
83c31e7d | 2151 | Default is the function surrounding the pc of the selected frame.\n\ |
6ff0ba5f | 2152 | \n\ |
d14508fe | 2153 | With a /m modifier, source lines are included (if available).\n\ |
6ff0ba5f DE |
2154 | This view is \"source centric\": the output is in source line order,\n\ |
2155 | regardless of any optimization that is present. Only the main source file\n\ | |
2156 | is displayed, not those of, e.g., any inlined functions.\n\ | |
2157 | This modifier hasn't proved useful in practice and is deprecated\n\ | |
2158 | in favor of /s.\n\ | |
2159 | \n\ | |
2160 | With a /s modifier, source lines are included (if available).\n\ | |
2161 | This differs from /m in two important respects:\n\ | |
2162 | - the output is still in pc address order, and\n\ | |
2163 | - file names and contents for all relevant source files are displayed.\n\ | |
2164 | \n\ | |
e6158f16 | 2165 | With a /r modifier, raw instructions in hex are included.\n\ |
6ff0ba5f | 2166 | \n\ |
83c31e7d | 2167 | With a single argument, the function surrounding that address is dumped.\n\ |
53a71c06 | 2168 | Two arguments (separated by a comma) are taken as a range of memory to dump,\n\ |
7e1e0340 DE |
2169 | in the form of \"start,end\", or \"start,+length\".\n\ |
2170 | \n\ | |
2171 | Note that the address is interpreted as an expression, not as a location\n\ | |
2172 | like in the \"break\" command.\n\ | |
2173 | So, for example, if you want to disassemble function bar in file foo.c\n\ | |
2174 | you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\".")); | |
83c31e7d | 2175 | set_cmd_completer (c, location_completer); |
0378c332 | 2176 | |
1bedd215 AC |
2177 | c = add_com ("make", class_support, make_command, _("\ |
2178 | Run the ``make'' program using the rest of the line as arguments.")); | |
5ba2abeb | 2179 | set_cmd_completer (c, filename_completer); |
1a966eab | 2180 | add_cmd ("user", no_class, show_user, _("\ |
ed3ef339 | 2181 | Show definitions of non-python/scheme user defined commands.\n\ |
d318976c | 2182 | Argument is the name of the user defined command.\n\ |
1a966eab | 2183 | With no argument, show definitions of all user defined commands."), &showlist); |
66d8c862 | 2184 | add_com ("apropos", class_support, apropos_command, _("\ |
590042fc | 2185 | Search for commands matching a REGEXP.\n\ |
66d8c862 PW |
2186 | Usage: apropos [-v] REGEXP\n\ |
2187 | Flag -v indicates to produce a verbose output, showing full documentation\n\ | |
2188 | of the matching commands.")); | |
20f01a46 | 2189 | |
883b9c6c | 2190 | add_setshow_uinteger_cmd ("max-user-call-depth", no_class, |
c0d88b1b | 2191 | &max_user_call_depth, _("\ |
ed3ef339 DE |
2192 | Set the max call depth for non-python/scheme user-defined commands."), _("\ |
2193 | Show the max call depth for non-python/scheme user-defined commands."), NULL, | |
883b9c6c YQ |
2194 | NULL, |
2195 | show_max_user_call_depth, | |
2196 | &setlist, &showlist); | |
16026cd7 AS |
2197 | |
2198 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ | |
2199 | Set tracing of GDB CLI commands."), _("\ | |
2200 | Show state of GDB CLI command tracing."), _("\ | |
2201 | When 'on', each command is displayed as it is executed."), | |
2202 | NULL, | |
2203 | NULL, | |
2204 | &setlist, &showlist); | |
5a56e9c5 DE |
2205 | |
2206 | c = add_com ("alias", class_support, alias_command, _("\ | |
2207 | Define a new command that is an alias of an existing command.\n\ | |
2208 | Usage: alias [-a] [--] ALIAS = COMMAND\n\ | |
2209 | ALIAS is the name of the alias command to create.\n\ | |
2210 | COMMAND is the command being aliased to.\n\ | |
2211 | If \"-a\" is specified, the command is an abbreviation,\n\ | |
2212 | and will not appear in help command list output.\n\ | |
2213 | \n\ | |
2214 | Examples:\n\ | |
2215 | Make \"spe\" an alias of \"set print elements\":\n\ | |
2216 | alias spe = set print elements\n\ | |
2217 | Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\ | |
2218 | alias -a set print elms = set print elements")); | |
43e4916f | 2219 | |
b777eb6d | 2220 | const char *source_help_text = xstrprintf (_("\ |
43e4916f TT |
2221 | Read commands from a file named FILE.\n\ |
2222 | \n\ | |
2223 | Usage: source [-s] [-v] FILE\n\ | |
2224 | -s: search for the script in the source search path,\n\ | |
2225 | even if FILE contains directories.\n\ | |
2226 | -v: each command in FILE is echoed as it is executed.\n\ | |
2227 | \n\ | |
2228 | Note that the file \"%s\" is read automatically in this way\n\ | |
b777eb6d | 2229 | when GDB is started."), GDBINIT); |
43e4916f TT |
2230 | c = add_cmd ("source", class_support, source_command, |
2231 | source_help_text, &cmdlist); | |
2232 | set_cmd_completer (c, filename_completer); | |
2233 | } |