Commit | Line | Data |
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d318976c | 1 | /* GDB CLI commands. |
8926118c | 2 | |
b811d2c2 | 3 | Copyright (C) 2000-2020 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 | 22 | #include "readline/tilde.h" |
d318976c | 23 | #include "completer.h" |
ebcd3b23 | 24 | #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */ |
268a13a5 | 25 | #include "gdbsupport/gdb_wait.h" /* For shell escape implementation. */ |
947d3946 | 26 | #include "gdbcmd.h" |
ebcd3b23 | 27 | #include "gdb_regex.h" /* Used by apropos_command. */ |
325ed089 | 28 | #include "gdb_vfork.h" |
0378c332 FN |
29 | #include "linespec.h" |
30 | #include "expression.h" | |
83c31e7d FN |
31 | #include "frame.h" |
32 | #include "value.h" | |
0378c332 | 33 | #include "language.h" |
ebcd3b23 | 34 | #include "filenames.h" /* For DOSish file names. */ |
0378c332 FN |
35 | #include "objfiles.h" |
36 | #include "source.h" | |
83c31e7d | 37 | #include "disasm.h" |
33da3f1c | 38 | #include "tracepoint.h" |
268a13a5 | 39 | #include "gdbsupport/filestuff.h" |
f00aae0f | 40 | #include "location.h" |
e9480230 | 41 | #include "block.h" |
d318976c | 42 | |
d318976c | 43 | #include "ui-out.h" |
947d3946 | 44 | #include "interps.h" |
d318976c FN |
45 | |
46 | #include "top.h" | |
47 | #include "cli/cli-decode.h" | |
48 | #include "cli/cli-script.h" | |
49 | #include "cli/cli-setshow.h" | |
50 | #include "cli/cli-cmds.h" | |
14309bb6 | 51 | #include "cli/cli-style.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 |
cc8dee1f | 76 | /* See cli-cmds.h. */ |
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; | |
491144b5 | 168 | bool trace_commands = false; |
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 | ||
fdbc9870 PA |
194 | /* See cli/cli-cmds.h. */ |
195 | ||
196 | void | |
197 | with_command_1 (const char *set_cmd_prefix, | |
198 | cmd_list_element *setlist, const char *args, int from_tty) | |
199 | { | |
26c957f1 PA |
200 | if (args == nullptr) |
201 | error (_("Missing arguments.")); | |
202 | ||
fdbc9870 PA |
203 | const char *delim = strstr (args, "--"); |
204 | const char *nested_cmd = nullptr; | |
205 | ||
206 | if (delim == args) | |
207 | error (_("Missing setting before '--' delimiter")); | |
208 | ||
209 | if (delim == nullptr || *skip_spaces (&delim[2]) == '\0') | |
210 | nested_cmd = repeat_previous (); | |
211 | ||
212 | cmd_list_element *set_cmd = lookup_cmd (&args, setlist, set_cmd_prefix, | |
213 | /*allow_unknown=*/ 0, | |
214 | /*ignore_help_classes=*/ 1); | |
215 | gdb_assert (set_cmd != nullptr); | |
216 | ||
217 | if (set_cmd->var == nullptr) | |
218 | error (_("Cannot use this setting with the \"with\" command")); | |
219 | ||
220 | std::string temp_value | |
221 | = (delim == nullptr ? args : std::string (args, delim - args)); | |
222 | ||
223 | if (nested_cmd == nullptr) | |
224 | nested_cmd = skip_spaces (delim + 2); | |
225 | ||
226 | std::string org_value = get_setshow_command_value_string (set_cmd); | |
227 | ||
228 | /* Tweak the setting to the new temporary value. */ | |
229 | do_set_command (temp_value.c_str (), from_tty, set_cmd); | |
230 | ||
231 | try | |
232 | { | |
233 | scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0); | |
234 | ||
235 | /* Execute the nested command. */ | |
236 | execute_command (nested_cmd, from_tty); | |
237 | } | |
238 | catch (const gdb_exception &ex) | |
239 | { | |
240 | /* Restore the setting and rethrow. If restoring the setting | |
241 | throws, swallow the new exception and warn. There's nothing | |
242 | else we can reasonably do. */ | |
243 | try | |
244 | { | |
245 | do_set_command (org_value.c_str (), from_tty, set_cmd); | |
246 | } | |
247 | catch (const gdb_exception &ex2) | |
248 | { | |
249 | warning (_("Couldn't restore setting: %s"), ex2.what ()); | |
250 | } | |
251 | ||
252 | throw; | |
253 | } | |
254 | ||
255 | /* Restore the setting. */ | |
256 | do_set_command (org_value.c_str (), from_tty, set_cmd); | |
257 | } | |
258 | ||
259 | /* See cli/cli-cmds.h. */ | |
260 | ||
261 | void | |
262 | with_command_completer_1 (const char *set_cmd_prefix, | |
263 | completion_tracker &tracker, | |
264 | const char *text) | |
265 | { | |
266 | tracker.set_use_custom_word_point (true); | |
267 | ||
268 | const char *delim = strstr (text, "--"); | |
269 | ||
270 | /* If we're still not past the "--" delimiter, complete the "with" | |
271 | command as if it was a "set" command. */ | |
272 | if (delim == text | |
273 | || delim == nullptr | |
274 | || !isspace (delim[-1]) | |
275 | || !(isspace (delim[2]) || delim[2] == '\0')) | |
276 | { | |
277 | std::string new_text = std::string (set_cmd_prefix) + text; | |
278 | tracker.advance_custom_word_point_by (-(int) strlen (set_cmd_prefix)); | |
279 | complete_nested_command_line (tracker, new_text.c_str ()); | |
280 | return; | |
281 | } | |
282 | ||
283 | /* We're past the "--" delimiter. Complete on the sub command. */ | |
284 | const char *nested_cmd = skip_spaces (delim + 2); | |
285 | tracker.advance_custom_word_point_by (nested_cmd - text); | |
286 | complete_nested_command_line (tracker, nested_cmd); | |
287 | } | |
288 | ||
289 | /* The "with" command. */ | |
290 | ||
291 | static void | |
292 | with_command (const char *args, int from_tty) | |
293 | { | |
294 | with_command_1 ("set ", setlist, args, from_tty); | |
295 | } | |
296 | ||
297 | /* "with" command completer. */ | |
298 | ||
299 | static void | |
300 | with_command_completer (struct cmd_list_element *ignore, | |
301 | completion_tracker &tracker, | |
302 | const char *text, const char * /*word*/) | |
303 | { | |
304 | with_command_completer_1 ("set ", tracker, text); | |
305 | } | |
306 | ||
d318976c FN |
307 | \f |
308 | /* Provide documentation on command or list given by COMMAND. FROM_TTY | |
309 | is ignored. */ | |
310 | ||
d318976c | 311 | static void |
0b39b52e | 312 | help_command (const char *command, int from_tty) |
d318976c FN |
313 | { |
314 | help_cmd (command, gdb_stdout); | |
315 | } | |
316 | \f | |
eb3ff9a5 | 317 | |
ef0b411a GB |
318 | /* Note: The "complete" command is used by Emacs to implement completion. |
319 | [Is that why this function writes output with *_unfiltered?] */ | |
d318976c | 320 | |
d318976c | 321 | static void |
0b39b52e | 322 | complete_command (const char *arg, int from_tty) |
d318976c | 323 | { |
d318976c FN |
324 | dont_repeat (); |
325 | ||
ef0b411a GB |
326 | if (max_completions == 0) |
327 | { | |
328 | /* Only print this for non-mi frontends. An MI frontend may not | |
329 | be able to handle this. */ | |
112e8700 | 330 | if (!current_uiout->is_mi_like_p ()) |
ef0b411a GB |
331 | { |
332 | printf_unfiltered (_("max-completions is zero," | |
333 | " completion is disabled.\n")); | |
334 | } | |
335 | return; | |
336 | } | |
337 | ||
d318976c FN |
338 | if (arg == NULL) |
339 | arg = ""; | |
d9b52655 | 340 | |
6a2c1b87 PA |
341 | int quote_char = '\0'; |
342 | const char *word; | |
343 | ||
6e035501 | 344 | completion_result result = complete (arg, &word, "e_char); |
eb3ff9a5 | 345 | |
eb3ff9a5 PA |
346 | if (result.number_matches != 0) |
347 | { | |
fb7806c7 TV |
348 | std::string arg_prefix (arg, word - arg); |
349 | ||
eb3ff9a5 PA |
350 | if (result.number_matches == 1) |
351 | printf_unfiltered ("%s%s\n", arg_prefix.c_str (), result.match_list[0]); | |
352 | else | |
83d31a92 | 353 | { |
eb3ff9a5 PA |
354 | result.sort_match_list (); |
355 | ||
356 | for (size_t i = 0; i < result.number_matches; i++) | |
83d31a92 | 357 | { |
eb3ff9a5 PA |
358 | printf_unfiltered ("%s%s", |
359 | arg_prefix.c_str (), | |
360 | result.match_list[i + 1]); | |
6a2c1b87 PA |
361 | if (quote_char) |
362 | printf_unfiltered ("%c", quote_char); | |
eb3ff9a5 | 363 | printf_unfiltered ("\n"); |
83d31a92 | 364 | } |
83d31a92 TT |
365 | } |
366 | ||
eb3ff9a5 | 367 | if (result.number_matches == max_completions) |
ef0b411a | 368 | { |
6a2c1b87 | 369 | /* ARG_PREFIX and WORD are included in the output so that emacs |
ef0b411a GB |
370 | will include the message in the output. */ |
371 | printf_unfiltered (_("%s%s %s\n"), | |
6a2c1b87 | 372 | arg_prefix.c_str (), word, |
ef0b411a GB |
373 | get_max_completions_reached_message ()); |
374 | } | |
d318976c FN |
375 | } |
376 | } | |
377 | ||
bbaca940 AC |
378 | int |
379 | is_complete_command (struct cmd_list_element *c) | |
d318976c | 380 | { |
bbaca940 | 381 | return cmd_cfunc_eq (c, complete_command); |
d318976c FN |
382 | } |
383 | ||
d318976c | 384 | static void |
dede02ce | 385 | show_version (const char *args, int from_tty) |
d318976c | 386 | { |
c61b06a1 | 387 | print_gdb_version (gdb_stdout, true); |
d318976c | 388 | printf_filtered ("\n"); |
d318976c FN |
389 | } |
390 | ||
6eaaf48b | 391 | static void |
dede02ce | 392 | show_configuration (const char *args, int from_tty) |
6eaaf48b EZ |
393 | { |
394 | print_gdb_configuration (gdb_stdout); | |
395 | } | |
396 | ||
d318976c FN |
397 | /* Handle the quit command. */ |
398 | ||
399 | void | |
0b39b52e | 400 | quit_command (const char *args, int from_tty) |
d318976c | 401 | { |
36cf1806 TT |
402 | int exit_code = 0; |
403 | ||
404 | /* An optional expression may be used to cause gdb to terminate with | |
405 | the value of that expression. */ | |
406 | if (args) | |
407 | { | |
408 | struct value *val = parse_and_eval (args); | |
409 | ||
410 | exit_code = (int) value_as_long (val); | |
411 | } | |
412 | ||
d318976c | 413 | if (!quit_confirm ()) |
8a3fe4f8 | 414 | error (_("Not confirmed.")); |
d5551862 | 415 | |
2f9d54cf | 416 | query_if_trace_running (from_tty); |
d5551862 | 417 | |
36cf1806 | 418 | quit_force (args ? &exit_code : NULL, from_tty); |
d318976c FN |
419 | } |
420 | ||
d318976c | 421 | static void |
0b39b52e | 422 | pwd_command (const char *args, int from_tty) |
d318976c FN |
423 | { |
424 | if (args) | |
8a3fe4f8 | 425 | error (_("The \"pwd\" command does not take an argument: %s"), args); |
43573013 SDJ |
426 | |
427 | gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0)); | |
428 | ||
429 | if (cwd == NULL) | |
bf1d7d9c JB |
430 | error (_("Error finding name of working directory: %s"), |
431 | safe_strerror (errno)); | |
d318976c | 432 | |
43573013 | 433 | if (strcmp (cwd.get (), current_directory) != 0) |
14309bb6 TT |
434 | printf_unfiltered (_("Working directory %ps\n (canonically %ps).\n"), |
435 | styled_string (file_name_style.style (), | |
436 | current_directory), | |
437 | styled_string (file_name_style.style (), cwd.get ())); | |
d318976c | 438 | else |
14309bb6 TT |
439 | printf_unfiltered (_("Working directory %ps.\n"), |
440 | styled_string (file_name_style.style (), | |
441 | current_directory)); | |
d318976c FN |
442 | } |
443 | ||
444 | void | |
5e93d4c6 | 445 | cd_command (const char *dir, int from_tty) |
d318976c FN |
446 | { |
447 | int len; | |
448 | /* Found something other than leading repetitions of "/..". */ | |
449 | int found_real_path; | |
450 | char *p; | |
451 | ||
452 | /* If the new directory is absolute, repeat is a no-op; if relative, | |
453 | repeat might be useful but is more likely to be a mistake. */ | |
454 | dont_repeat (); | |
455 | ||
6eecf35f TT |
456 | gdb::unique_xmalloc_ptr<char> dir_holder |
457 | (tilde_expand (dir != NULL ? dir : "~")); | |
458 | dir = dir_holder.get (); | |
d318976c FN |
459 | |
460 | if (chdir (dir) < 0) | |
461 | perror_with_name (dir); | |
462 | ||
c3690141 | 463 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
d318976c FN |
464 | /* There's too much mess with DOSish names like "d:", "d:.", |
465 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, | |
466 | simply get the canonicalized name of the current directory. */ | |
43573013 SDJ |
467 | gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0)); |
468 | dir = cwd.get (); | |
d318976c FN |
469 | #endif |
470 | ||
471 | len = strlen (dir); | |
fe4e3eb8 | 472 | if (IS_DIR_SEPARATOR (dir[len - 1])) |
d318976c FN |
473 | { |
474 | /* Remove the trailing slash unless this is a root directory | |
475 | (including a drive letter on non-Unix systems). */ | |
476 | if (!(len == 1) /* "/" */ | |
c3690141 | 477 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
fe4e3eb8 | 478 | && !(len == 3 && dir[1] == ':') /* "d:/" */ |
d318976c FN |
479 | #endif |
480 | ) | |
481 | len--; | |
482 | } | |
483 | ||
6eecf35f TT |
484 | dir_holder.reset (savestring (dir, len)); |
485 | if (IS_ABSOLUTE_PATH (dir_holder.get ())) | |
43573013 SDJ |
486 | { |
487 | xfree (current_directory); | |
488 | current_directory = dir_holder.release (); | |
489 | } | |
d318976c FN |
490 | else |
491 | { | |
fe4e3eb8 | 492 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) |
6eecf35f TT |
493 | current_directory = concat (current_directory, dir_holder.get (), |
494 | (char *) NULL); | |
d318976c | 495 | else |
1754f103 | 496 | current_directory = concat (current_directory, SLASH_STRING, |
6eecf35f | 497 | dir_holder.get (), (char *) NULL); |
d318976c FN |
498 | } |
499 | ||
500 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ | |
501 | ||
502 | found_real_path = 0; | |
503 | for (p = current_directory; *p;) | |
504 | { | |
fe4e3eb8 EZ |
505 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' |
506 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) | |
b2a3b509 | 507 | memmove (p, p + 2, strlen (p + 2) + 1); |
fe4e3eb8 EZ |
508 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' |
509 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) | |
d318976c FN |
510 | { |
511 | if (found_real_path) | |
512 | { | |
513 | /* Search backwards for the directory just before the "/.." | |
514 | and obliterate it and the "/..". */ | |
515 | char *q = p; | |
cdb27c12 | 516 | |
fe4e3eb8 | 517 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) |
d318976c FN |
518 | --q; |
519 | ||
520 | if (q == current_directory) | |
521 | /* current_directory is | |
522 | a relative pathname ("can't happen"--leave it alone). */ | |
523 | ++p; | |
524 | else | |
525 | { | |
b2a3b509 | 526 | memmove (q - 1, p + 3, strlen (p + 3) + 1); |
d318976c FN |
527 | p = q - 1; |
528 | } | |
529 | } | |
530 | else | |
ebcd3b23 MS |
531 | /* We are dealing with leading repetitions of "/..", for |
532 | example "/../..", which is the Mach super-root. */ | |
d318976c FN |
533 | p += 3; |
534 | } | |
535 | else | |
536 | { | |
537 | found_real_path = 1; | |
538 | ++p; | |
539 | } | |
540 | } | |
541 | ||
542 | forget_cached_source_info (); | |
543 | ||
544 | if (from_tty) | |
545 | pwd_command ((char *) 0, 1); | |
546 | } | |
547 | \f | |
973817a3 JB |
548 | /* Show the current value of the 'script-extension' option. */ |
549 | ||
550 | static void | |
551 | show_script_ext_mode (struct ui_file *file, int from_tty, | |
552 | struct cmd_list_element *c, const char *value) | |
d318976c | 553 | { |
9a2b4c1b MS |
554 | fprintf_filtered (file, |
555 | _("Script filename extension recognition is \"%s\".\n"), | |
973817a3 JB |
556 | value); |
557 | } | |
558 | ||
3f7b2faa DE |
559 | /* Try to open SCRIPT_FILE. |
560 | If successful, the full path name is stored in *FULL_PATHP, | |
ed166945 TT |
561 | and the stream is returned. |
562 | If not successful, return NULL; errno is set for the last file | |
3f7b2faa DE |
563 | we tried to open. |
564 | ||
565 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
f5b95b50 | 566 | search for it in the source search path. */ |
3f7b2faa | 567 | |
ed166945 TT |
568 | gdb::optional<open_script> |
569 | find_and_open_script (const char *script_file, int search_path) | |
973817a3 | 570 | { |
4b505b12 | 571 | int fd; |
24b9144d | 572 | openp_flags search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH; |
ed166945 | 573 | gdb::optional<open_script> opened; |
d318976c | 574 | |
ee0c3293 | 575 | gdb::unique_xmalloc_ptr<char> file (tilde_expand (script_file)); |
d318976c | 576 | |
3f7b2faa DE |
577 | if (search_path) |
578 | search_flags |= OPF_SEARCH_IN_PATH; | |
4b505b12 | 579 | |
3f7b2faa DE |
580 | /* Search for and open 'file' on the search path used for source |
581 | files. Put the full location in *FULL_PATHP. */ | |
e0cc99a6 | 582 | gdb::unique_xmalloc_ptr<char> full_path; |
3f7b2faa | 583 | fd = openp (source_path, search_flags, |
e0cc99a6 | 584 | file.get (), O_RDONLY, &full_path); |
4b505b12 AS |
585 | |
586 | if (fd == -1) | |
ee0c3293 | 587 | return opened; |
973817a3 | 588 | |
ed166945 TT |
589 | FILE *result = fdopen (fd, FOPEN_RT); |
590 | if (result == NULL) | |
77a35dd8 JK |
591 | { |
592 | int save_errno = errno; | |
593 | ||
594 | close (fd); | |
77a35dd8 | 595 | errno = save_errno; |
77a35dd8 | 596 | } |
ed166945 TT |
597 | else |
598 | opened.emplace (gdb_file_up (result), std::move (full_path)); | |
77a35dd8 | 599 | |
ed166945 | 600 | return opened; |
973817a3 JB |
601 | } |
602 | ||
1a70ae97 DE |
603 | /* Load script FILE, which has already been opened as STREAM. |
604 | FILE_TO_OPEN is the form of FILE to use if one needs to open the file. | |
605 | This is provided as FILE may have been found via the source search path. | |
606 | An important thing to note here is that FILE may be a symlink to a file | |
607 | with a different or non-existing suffix, and thus one cannot infer the | |
608 | extension language from FILE_TO_OPEN. */ | |
973817a3 | 609 | |
3f7b2faa | 610 | static void |
1a70ae97 DE |
611 | source_script_from_stream (FILE *stream, const char *file, |
612 | const char *file_to_open) | |
3f7b2faa | 613 | { |
6dddc817 | 614 | if (script_ext_mode != script_ext_off) |
973817a3 | 615 | { |
6dddc817 DE |
616 | const struct extension_language_defn *extlang |
617 | = get_ext_lang_of_file (file); | |
618 | ||
619 | if (extlang != NULL) | |
973817a3 | 620 | { |
6dddc817 DE |
621 | if (ext_lang_present_p (extlang)) |
622 | { | |
623 | script_sourcer_func *sourcer | |
624 | = ext_lang_script_sourcer (extlang); | |
625 | ||
626 | gdb_assert (sourcer != NULL); | |
1a70ae97 | 627 | sourcer (extlang, stream, file_to_open); |
6dddc817 DE |
628 | return; |
629 | } | |
630 | else if (script_ext_mode == script_ext_soft) | |
631 | { | |
632 | /* Assume the file is a gdb script. | |
633 | This is handled below. */ | |
634 | } | |
635 | else | |
636 | throw_ext_lang_unsupported (extlang); | |
973817a3 JB |
637 | } |
638 | } | |
6dddc817 DE |
639 | |
640 | script_from_file (stream, file); | |
3f7b2faa | 641 | } |
d318976c | 642 | |
3f7b2faa DE |
643 | /* Worker to perform the "source" command. |
644 | Load script FILE. | |
645 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
646 | search for it in the source search path. */ | |
647 | ||
648 | static void | |
649 | source_script_with_search (const char *file, int from_tty, int search_path) | |
650 | { | |
3f7b2faa DE |
651 | |
652 | if (file == NULL || *file == 0) | |
653 | error (_("source command requires file name of file to source.")); | |
654 | ||
ed166945 TT |
655 | gdb::optional<open_script> opened = find_and_open_script (file, search_path); |
656 | if (!opened) | |
3f7b2faa | 657 | { |
d234ef5c | 658 | /* The script wasn't found, or was otherwise inaccessible. |
ebcd3b23 MS |
659 | If the source command was invoked interactively, throw an |
660 | error. Otherwise (e.g. if it was invoked by a script), | |
7c647d61 | 661 | just emit a warning, rather than cause an error. */ |
3f7b2faa DE |
662 | if (from_tty) |
663 | perror_with_name (file); | |
664 | else | |
7c647d61 JB |
665 | { |
666 | perror_warning_with_name (file); | |
667 | return; | |
668 | } | |
3f7b2faa DE |
669 | } |
670 | ||
d234ef5c DE |
671 | /* The python support reopens the file, so we need to pass full_path here |
672 | in case the file was found on the search path. It's useful to do this | |
673 | anyway so that error messages show the actual file used. But only do | |
674 | this if we (may have) used search_path, as printing the full path in | |
675 | errors for the non-search case can be more noise than signal. */ | |
ed166945 TT |
676 | source_script_from_stream (opened->stream.get (), file, |
677 | search_path ? opened->full_path.get () : file); | |
d318976c FN |
678 | } |
679 | ||
3f7b2faa DE |
680 | /* Wrapper around source_script_with_search to export it to main.c |
681 | for use in loading .gdbinit scripts. */ | |
682 | ||
683 | void | |
50dd9793 | 684 | source_script (const char *file, int from_tty) |
3f7b2faa DE |
685 | { |
686 | source_script_with_search (file, from_tty, 0); | |
687 | } | |
688 | ||
16026cd7 | 689 | static void |
dede02ce | 690 | source_command (const char *args, int from_tty) |
16026cd7 | 691 | { |
dede02ce | 692 | const char *file = args; |
3f7b2faa | 693 | int search_path = 0; |
16026cd7 | 694 | |
2ec845e7 | 695 | scoped_restore save_source_verbose = make_scoped_restore (&source_verbose); |
16026cd7 AS |
696 | |
697 | /* -v causes the source command to run in verbose mode. | |
3f7b2faa DE |
698 | -s causes the file to be searched in the source search path, |
699 | even if the file name contains a '/'. | |
16026cd7 AS |
700 | We still have to be able to handle filenames with spaces in a |
701 | backward compatible way, so buildargv is not appropriate. */ | |
702 | ||
703 | if (args) | |
704 | { | |
3f7b2faa | 705 | while (args[0] != '\0') |
16026cd7 | 706 | { |
ebcd3b23 MS |
707 | /* Make sure leading white space does not break the |
708 | comparisons. */ | |
529480d0 | 709 | args = skip_spaces (args); |
3f7b2faa DE |
710 | |
711 | if (args[0] != '-') | |
712 | break; | |
713 | ||
714 | if (args[1] == 'v' && isspace (args[2])) | |
715 | { | |
716 | source_verbose = 1; | |
717 | ||
718 | /* Skip passed -v. */ | |
719 | args = &args[3]; | |
720 | } | |
721 | else if (args[1] == 's' && isspace (args[2])) | |
722 | { | |
723 | search_path = 1; | |
16026cd7 | 724 | |
3f7b2faa DE |
725 | /* Skip passed -s. */ |
726 | args = &args[3]; | |
727 | } | |
728 | else | |
729 | break; | |
16026cd7 | 730 | } |
3f7b2faa | 731 | |
529480d0 | 732 | file = skip_spaces (args); |
16026cd7 AS |
733 | } |
734 | ||
3f7b2faa | 735 | source_script_with_search (file, from_tty, search_path); |
16026cd7 AS |
736 | } |
737 | ||
738 | ||
d318976c | 739 | static void |
0b39b52e | 740 | echo_command (const char *text, int from_tty) |
d318976c | 741 | { |
d7561cbb | 742 | const char *p = text; |
d5b5ac79 | 743 | int c; |
d318976c FN |
744 | |
745 | if (text) | |
746 | while ((c = *p++) != '\0') | |
747 | { | |
748 | if (c == '\\') | |
749 | { | |
750 | /* \ at end of argument is used after spaces | |
751 | so they won't be lost. */ | |
752 | if (*p == 0) | |
753 | return; | |
754 | ||
f870a310 | 755 | c = parse_escape (get_current_arch (), &p); |
d318976c FN |
756 | if (c >= 0) |
757 | printf_filtered ("%c", c); | |
758 | } | |
759 | else | |
760 | printf_filtered ("%c", c); | |
761 | } | |
762 | ||
ef1dfa36 TT |
763 | reset_terminal_style (gdb_stdout); |
764 | ||
d318976c FN |
765 | /* Force this output to appear now. */ |
766 | wrap_here (""); | |
767 | gdb_flush (gdb_stdout); | |
768 | } | |
769 | ||
947d3946 PW |
770 | /* Sets the last launched shell command convenience variables based on |
771 | EXIT_STATUS. */ | |
772 | ||
773 | static void | |
774 | exit_status_set_internal_vars (int exit_status) | |
775 | { | |
776 | struct internalvar *var_code = lookup_internalvar ("_shell_exitcode"); | |
777 | struct internalvar *var_signal = lookup_internalvar ("_shell_exitsignal"); | |
778 | ||
779 | clear_internalvar (var_code); | |
780 | clear_internalvar (var_signal); | |
781 | if (WIFEXITED (exit_status)) | |
782 | set_internalvar_integer (var_code, WEXITSTATUS (exit_status)); | |
559e7e50 EZ |
783 | #ifdef __MINGW32__ |
784 | else if (WIFSIGNALED (exit_status) && WTERMSIG (exit_status) == -1) | |
785 | { | |
786 | /* The -1 condition can happen on MinGW, if we don't recognize | |
787 | the fatal exception code encoded in the exit status; see | |
788 | gdbsupport/gdb_wait.c. We don't want to lose information in | |
789 | the exit status in that case. Record it as a normal exit | |
790 | with the full exit status, including the higher 0xC0000000 | |
791 | bits. */ | |
792 | set_internalvar_integer (var_code, exit_status); | |
793 | } | |
794 | #endif | |
947d3946 PW |
795 | else if (WIFSIGNALED (exit_status)) |
796 | set_internalvar_integer (var_signal, WTERMSIG (exit_status)); | |
797 | else | |
422186a9 | 798 | warning (_("unexpected shell command exit status %d"), exit_status); |
947d3946 PW |
799 | } |
800 | ||
d318976c | 801 | static void |
be47f9e8 | 802 | shell_escape (const char *arg, int from_tty) |
d318976c | 803 | { |
9b265ec2 MM |
804 | #if defined(CANT_FORK) || \ |
805 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) | |
d318976c FN |
806 | /* If ARG is NULL, they want an inferior shell, but `system' just |
807 | reports if the shell is available when passed a NULL arg. */ | |
808 | int rc = system (arg ? arg : ""); | |
809 | ||
810 | if (!arg) | |
811 | arg = "inferior shell"; | |
812 | ||
813 | if (rc == -1) | |
c119e040 TT |
814 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, |
815 | safe_strerror (errno)); | |
d318976c | 816 | else if (rc) |
c119e040 | 817 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); |
2584159e | 818 | #ifdef GLOBAL_CURDIR |
ebcd3b23 MS |
819 | /* Make sure to return to the directory GDB thinks it is, in case |
820 | the shell command we just ran changed it. */ | |
d318976c | 821 | chdir (current_directory); |
947d3946 | 822 | exit_status_set_internal_vars (rc); |
d318976c FN |
823 | #endif |
824 | #else /* Can fork. */ | |
5be4dfca | 825 | int status, pid; |
d318976c | 826 | |
325ed089 | 827 | if ((pid = vfork ()) == 0) |
d318976c | 828 | { |
974e6844 | 829 | const char *p, *user_shell = get_shell (); |
30e94205 | 830 | |
614c279d TT |
831 | close_most_fds (); |
832 | ||
ebcd3b23 | 833 | /* Get the name of the shell for arg0. */ |
9f37bbcc | 834 | p = lbasename (user_shell); |
30e94205 | 835 | |
d318976c | 836 | if (!arg) |
36662fde | 837 | execl (user_shell, p, (char *) 0); |
d318976c | 838 | else |
36662fde | 839 | execl (user_shell, p, "-c", arg, (char *) 0); |
d318976c FN |
840 | |
841 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, | |
842 | safe_strerror (errno)); | |
d318976c FN |
843 | _exit (0177); |
844 | } | |
845 | ||
846 | if (pid != -1) | |
5be4dfca | 847 | waitpid (pid, &status, 0); |
d318976c | 848 | else |
8a3fe4f8 | 849 | error (_("Fork failed")); |
947d3946 | 850 | exit_status_set_internal_vars (status); |
d318976c FN |
851 | #endif /* Can fork. */ |
852 | } | |
853 | ||
be47f9e8 PA |
854 | /* Implementation of the "shell" command. */ |
855 | ||
856 | static void | |
0b39b52e | 857 | shell_command (const char *arg, int from_tty) |
be47f9e8 PA |
858 | { |
859 | shell_escape (arg, from_tty); | |
860 | } | |
861 | ||
0378c332 | 862 | static void |
0b39b52e | 863 | edit_command (const char *arg, int from_tty) |
0378c332 | 864 | { |
0378c332 FN |
865 | struct symtab_and_line sal; |
866 | struct symbol *sym; | |
a121b7c1 | 867 | const char *editor; |
0b0865da TT |
868 | char *p; |
869 | const char *fn; | |
0378c332 | 870 | |
d5529a84 | 871 | /* Pull in the current default source line if necessary. */ |
0378c332 | 872 | if (arg == 0) |
53cb0458 FN |
873 | { |
874 | set_default_source_symtab_and_line (); | |
875 | sal = get_current_source_symtab_and_line (); | |
876 | } | |
0378c332 | 877 | |
ebcd3b23 | 878 | /* Bare "edit" edits file with present line. */ |
0378c332 FN |
879 | |
880 | if (arg == 0) | |
881 | { | |
882 | if (sal.symtab == 0) | |
8a3fe4f8 | 883 | error (_("No default source file yet.")); |
0378c332 FN |
884 | sal.line += get_lines_to_list () / 2; |
885 | } | |
886 | else | |
887 | { | |
f2fc3015 | 888 | const char *arg1; |
0378c332 | 889 | |
f00aae0f | 890 | /* Now should only be one argument -- decode it in SAL. */ |
0378c332 | 891 | arg1 = arg; |
ffc2605c TT |
892 | event_location_up location = string_to_event_location (&arg1, |
893 | current_language); | |
6c5b2ebe PA |
894 | std::vector<symtab_and_line> sals = decode_line_1 (location.get (), |
895 | DECODE_LINE_LIST_MODE, | |
896 | NULL, NULL, 0); | |
0378c332 | 897 | |
6c5b2ebe PA |
898 | filter_sals (sals); |
899 | if (sals.empty ()) | |
d5529a84 TT |
900 | { |
901 | /* C++ */ | |
902 | return; | |
903 | } | |
6c5b2ebe | 904 | if (sals.size () > 1) |
d5529a84 | 905 | { |
6c5b2ebe | 906 | ambiguous_line_spec (sals, |
e439fa14 | 907 | _("Specified line is ambiguous:\n")); |
d5529a84 TT |
908 | return; |
909 | } | |
0378c332 | 910 | |
6c5b2ebe | 911 | sal = sals[0]; |
0378c332 FN |
912 | |
913 | if (*arg1) | |
8a3fe4f8 | 914 | error (_("Junk at end of line specification.")); |
0378c332 | 915 | |
ebcd3b23 MS |
916 | /* If line was specified by address, first print exactly which |
917 | line, and which file. In this case, sal.symtab == 0 means | |
918 | address is outside of all known source files, not that user | |
919 | failed to give a filename. */ | |
0378c332 FN |
920 | if (*arg == '*') |
921 | { | |
5af949e3 | 922 | struct gdbarch *gdbarch; |
cdb27c12 | 923 | |
0378c332 | 924 | if (sal.symtab == 0) |
8a3fe4f8 | 925 | error (_("No source file for address %s."), |
2b69941d | 926 | paddress (get_current_arch (), sal.pc)); |
5af949e3 | 927 | |
08feed99 | 928 | gdbarch = SYMTAB_OBJFILE (sal.symtab)->arch (); |
0378c332 FN |
929 | sym = find_pc_function (sal.pc); |
930 | if (sym) | |
5af949e3 UW |
931 | printf_filtered ("%s is in %s (%s:%d).\n", |
932 | paddress (gdbarch, sal.pc), | |
987012b8 | 933 | sym->print_name (), |
05cba821 JK |
934 | symtab_to_filename_for_display (sal.symtab), |
935 | sal.line); | |
0378c332 | 936 | else |
5af949e3 UW |
937 | printf_filtered ("%s is at %s:%d.\n", |
938 | paddress (gdbarch, sal.pc), | |
05cba821 JK |
939 | symtab_to_filename_for_display (sal.symtab), |
940 | sal.line); | |
0378c332 FN |
941 | } |
942 | ||
ebcd3b23 MS |
943 | /* If what was given does not imply a symtab, it must be an |
944 | undebuggable symbol which means no source code. */ | |
0378c332 FN |
945 | |
946 | if (sal.symtab == 0) | |
8a3fe4f8 | 947 | error (_("No line number known for %s."), arg); |
0378c332 FN |
948 | } |
949 | ||
081bca4d TT |
950 | if ((editor = getenv ("EDITOR")) == NULL) |
951 | editor = "/bin/ex"; | |
a955ca71 | 952 | |
f35a17b5 | 953 | fn = symtab_to_fullname (sal.symtab); |
0378c332 | 954 | |
a955ca71 EZ |
955 | /* Quote the file name, in case it has whitespace or other special |
956 | characters. */ | |
957 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); | |
d5529a84 TT |
958 | shell_escape (p, from_tty); |
959 | xfree (p); | |
0378c332 FN |
960 | } |
961 | ||
5f4ba3e7 PA |
962 | /* The options for the "pipe" command. */ |
963 | ||
964 | struct pipe_cmd_opts | |
965 | { | |
966 | /* For "-d". */ | |
967 | char *delimiter = nullptr; | |
968 | ||
969 | ~pipe_cmd_opts () | |
970 | { | |
971 | xfree (delimiter); | |
972 | } | |
973 | }; | |
974 | ||
975 | static const gdb::option::option_def pipe_cmd_option_defs[] = { | |
976 | ||
977 | gdb::option::string_option_def<pipe_cmd_opts> { | |
978 | "d", | |
979 | [] (pipe_cmd_opts *opts) { return &opts->delimiter; }, | |
980 | nullptr, | |
981 | N_("Indicates to use the specified delimiter string to separate\n\ | |
982 | COMMAND from SHELL_COMMAND, in alternative to |. This is useful in\n\ | |
983 | case COMMAND contains a | character."), | |
984 | }, | |
985 | ||
986 | }; | |
987 | ||
988 | /* Create an option_def_group for the "pipe" command's options, with | |
989 | OPTS as context. */ | |
990 | ||
991 | static inline gdb::option::option_def_group | |
992 | make_pipe_cmd_options_def_group (pipe_cmd_opts *opts) | |
993 | { | |
994 | return {{pipe_cmd_option_defs}, opts}; | |
995 | } | |
996 | ||
947d3946 PW |
997 | /* Implementation of the "pipe" command. */ |
998 | ||
999 | static void | |
1000 | pipe_command (const char *arg, int from_tty) | |
1001 | { | |
5f4ba3e7 | 1002 | pipe_cmd_opts opts; |
947d3946 | 1003 | |
5f4ba3e7 PA |
1004 | auto grp = make_pipe_cmd_options_def_group (&opts); |
1005 | gdb::option::process_options | |
1006 | (&arg, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
1007 | ||
1008 | const char *delim = "|"; | |
1009 | if (opts.delimiter != nullptr) | |
1010 | delim = opts.delimiter; | |
947d3946 PW |
1011 | |
1012 | const char *command = arg; | |
1013 | if (command == nullptr) | |
1014 | error (_("Missing COMMAND")); | |
1015 | ||
5f4ba3e7 | 1016 | arg = strstr (arg, delim); |
947d3946 PW |
1017 | |
1018 | if (arg == nullptr) | |
1019 | error (_("Missing delimiter before SHELL_COMMAND")); | |
1020 | ||
1021 | std::string gdb_cmd (command, arg - command); | |
1022 | ||
5f4ba3e7 | 1023 | arg += strlen (delim); /* Skip the delimiter. */ |
947d3946 PW |
1024 | |
1025 | if (gdb_cmd.empty ()) | |
fdbc9870 | 1026 | gdb_cmd = repeat_previous (); |
947d3946 PW |
1027 | |
1028 | const char *shell_command = skip_spaces (arg); | |
1029 | if (*shell_command == '\0') | |
1030 | error (_("Missing SHELL_COMMAND")); | |
1031 | ||
1032 | FILE *to_shell_command = popen (shell_command, "w"); | |
1033 | ||
1034 | if (to_shell_command == nullptr) | |
1035 | error (_("Error launching \"%s\""), shell_command); | |
1036 | ||
1037 | try | |
1038 | { | |
1039 | stdio_file pipe_file (to_shell_command); | |
1040 | ||
1041 | execute_command_to_ui_file (&pipe_file, gdb_cmd.c_str (), from_tty); | |
1042 | } | |
1043 | catch (...) | |
1044 | { | |
1045 | pclose (to_shell_command); | |
1046 | throw; | |
1047 | } | |
1048 | ||
1049 | int exit_status = pclose (to_shell_command); | |
1050 | ||
1051 | if (exit_status < 0) | |
1052 | error (_("shell command \"%s\" failed: %s"), shell_command, | |
1053 | safe_strerror (errno)); | |
1054 | exit_status_set_internal_vars (exit_status); | |
1055 | } | |
1056 | ||
5f4ba3e7 PA |
1057 | /* Completer for the pipe command. */ |
1058 | ||
1059 | static void | |
1060 | pipe_command_completer (struct cmd_list_element *ignore, | |
1061 | completion_tracker &tracker, | |
1062 | const char *text, const char *word_ignored) | |
1063 | { | |
1064 | pipe_cmd_opts opts; | |
1065 | ||
1066 | const char *org_text = text; | |
1067 | auto grp = make_pipe_cmd_options_def_group (&opts); | |
1068 | if (gdb::option::complete_options | |
1069 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp)) | |
1070 | return; | |
1071 | ||
1072 | const char *delimiter = "|"; | |
1073 | if (opts.delimiter != nullptr) | |
1074 | delimiter = opts.delimiter; | |
1075 | ||
1076 | /* Check if we're past option values already. */ | |
1077 | if (text > org_text && !isspace (text[-1])) | |
1078 | return; | |
1079 | ||
1080 | const char *delim = strstr (text, delimiter); | |
1081 | ||
1082 | /* If we're still not past the delimiter, complete the gdb | |
1083 | command. */ | |
1084 | if (delim == nullptr || delim == text) | |
1085 | { | |
1086 | complete_nested_command_line (tracker, text); | |
1087 | return; | |
1088 | } | |
1089 | ||
1090 | /* We're past the delimiter. What follows is a shell command, which | |
1091 | we don't know how to complete. */ | |
1092 | } | |
1093 | ||
0378c332 | 1094 | static void |
0b39b52e | 1095 | list_command (const char *arg, int from_tty) |
0378c332 | 1096 | { |
0378c332 | 1097 | struct symbol *sym; |
f2fc3015 | 1098 | const char *arg1; |
0378c332 FN |
1099 | int no_end = 1; |
1100 | int dummy_end = 0; | |
1101 | int dummy_beg = 0; | |
1102 | int linenum_beg = 0; | |
0b39b52e | 1103 | const char *p; |
0378c332 | 1104 | |
ebcd3b23 | 1105 | /* Pull in the current default source line if necessary. */ |
a0def019 | 1106 | if (arg == NULL || ((arg[0] == '+' || arg[0] == '-') && arg[1] == '\0')) |
53cb0458 FN |
1107 | { |
1108 | set_default_source_symtab_and_line (); | |
51abb421 | 1109 | symtab_and_line cursal = get_current_source_symtab_and_line (); |
5166082f PA |
1110 | |
1111 | /* If this is the first "list" since we've set the current | |
1112 | source line, center the listing around that line. */ | |
1113 | if (get_first_line_listed () == 0) | |
1114 | { | |
1115 | int first; | |
1116 | ||
325fac50 | 1117 | first = std::max (cursal.line - get_lines_to_list () / 2, 1); |
5166082f PA |
1118 | |
1119 | /* A small special case --- if listing backwards, and we | |
1120 | should list only one line, list the preceding line, | |
1121 | instead of the exact line we've just shown after e.g., | |
1122 | stopping for a breakpoint. */ | |
1123 | if (arg != NULL && arg[0] == '-' | |
1124 | && get_lines_to_list () == 1 && first > 1) | |
1125 | first -= 1; | |
1126 | ||
0e2a2133 | 1127 | print_source_lines (cursal.symtab, source_lines_range (first), 0); |
5166082f | 1128 | } |
0378c332 | 1129 | |
1a48ce76 | 1130 | /* "l" or "l +" lists next ten lines. */ |
a0def019 | 1131 | else if (arg == NULL || arg[0] == '+') |
0e2a2133 AB |
1132 | print_source_lines (cursal.symtab, |
1133 | source_lines_range (cursal.line), 0); | |
0378c332 | 1134 | |
1a48ce76 AB |
1135 | /* "l -" lists previous ten lines, the ones before the ten just |
1136 | listed. */ | |
a0def019 | 1137 | else if (arg[0] == '-') |
3b2464a8 AB |
1138 | { |
1139 | if (get_first_line_listed () == 1) | |
1140 | error (_("Already at the start of %s."), | |
1141 | symtab_to_filename_for_display (cursal.symtab)); | |
0e2a2133 AB |
1142 | source_lines_range range (get_first_line_listed (), |
1143 | source_lines_range::BACKWARD); | |
1144 | print_source_lines (cursal.symtab, range, 0); | |
3b2464a8 | 1145 | } |
0378c332 | 1146 | |
0378c332 FN |
1147 | return; |
1148 | } | |
1149 | ||
1150 | /* Now if there is only one argument, decode it in SAL | |
1151 | and set NO_END. | |
1152 | If there are two arguments, decode them in SAL and SAL_END | |
1153 | and clear NO_END; however, if one of the arguments is blank, | |
1154 | set DUMMY_BEG or DUMMY_END to record that fact. */ | |
1155 | ||
1156 | if (!have_full_symbols () && !have_partial_symbols ()) | |
8a3fe4f8 | 1157 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
0378c332 | 1158 | |
6c5b2ebe | 1159 | std::vector<symtab_and_line> sals; |
51abb421 | 1160 | symtab_and_line sal, sal_end; |
6c5b2ebe | 1161 | |
0378c332 FN |
1162 | arg1 = arg; |
1163 | if (*arg1 == ',') | |
1164 | dummy_beg = 1; | |
1165 | else | |
1166 | { | |
ffc2605c TT |
1167 | event_location_up location = string_to_event_location (&arg1, |
1168 | current_language); | |
1169 | sals = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
1170 | NULL, NULL, 0); | |
6c5b2ebe PA |
1171 | filter_sals (sals); |
1172 | if (sals.empty ()) | |
f00aae0f KS |
1173 | { |
1174 | /* C++ */ | |
f00aae0f KS |
1175 | return; |
1176 | } | |
0378c332 | 1177 | |
6c5b2ebe | 1178 | sal = sals[0]; |
0378c332 FN |
1179 | } |
1180 | ||
1181 | /* Record whether the BEG arg is all digits. */ | |
1182 | ||
1183 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); | |
1184 | linenum_beg = (p == arg1); | |
1185 | ||
e439fa14 PA |
1186 | /* Save the range of the first argument, in case we need to let the |
1187 | user know it was ambiguous. */ | |
1188 | const char *beg = arg; | |
1189 | size_t beg_len = arg1 - beg; | |
1190 | ||
0378c332 FN |
1191 | while (*arg1 == ' ' || *arg1 == '\t') |
1192 | arg1++; | |
1193 | if (*arg1 == ',') | |
1194 | { | |
1195 | no_end = 0; | |
6c5b2ebe | 1196 | if (sals.size () > 1) |
0d999a6e | 1197 | { |
6c5b2ebe | 1198 | ambiguous_line_spec (sals, |
e439fa14 PA |
1199 | _("Specified first line '%.*s' is ambiguous:\n"), |
1200 | (int) beg_len, beg); | |
0d999a6e ZZ |
1201 | return; |
1202 | } | |
0378c332 FN |
1203 | arg1++; |
1204 | while (*arg1 == ' ' || *arg1 == '\t') | |
1205 | arg1++; | |
1206 | if (*arg1 == 0) | |
1207 | dummy_end = 1; | |
1208 | else | |
1209 | { | |
e439fa14 PA |
1210 | /* Save the last argument, in case we need to let the user |
1211 | know it was ambiguous. */ | |
1212 | const char *end_arg = arg1; | |
1213 | ||
ffc2605c TT |
1214 | event_location_up location |
1215 | = string_to_event_location (&arg1, current_language); | |
f00aae0f | 1216 | |
6c5b2ebe PA |
1217 | std::vector<symtab_and_line> sals_end |
1218 | = (dummy_beg | |
1219 | ? decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
1220 | NULL, NULL, 0) | |
1221 | : decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
1222 | NULL, sal.symtab, sal.line)); | |
1223 | ||
1224 | filter_sals (sals_end); | |
1225 | if (sals_end.empty ()) | |
1226 | return; | |
1227 | if (sals_end.size () > 1) | |
0d999a6e | 1228 | { |
6c5b2ebe | 1229 | ambiguous_line_spec (sals_end, |
e439fa14 PA |
1230 | _("Specified last line '%s' is ambiguous:\n"), |
1231 | end_arg); | |
0378c332 FN |
1232 | return; |
1233 | } | |
6c5b2ebe | 1234 | sal_end = sals_end[0]; |
0378c332 FN |
1235 | } |
1236 | } | |
1237 | ||
1238 | if (*arg1) | |
8a3fe4f8 | 1239 | error (_("Junk at end of line specification.")); |
0378c332 FN |
1240 | |
1241 | if (!no_end && !dummy_beg && !dummy_end | |
1242 | && sal.symtab != sal_end.symtab) | |
e439fa14 | 1243 | error (_("Specified first and last lines are in different files.")); |
0378c332 | 1244 | if (dummy_beg && dummy_end) |
8a3fe4f8 | 1245 | error (_("Two empty args do not say what lines to list.")); |
0378c332 | 1246 | |
ebcd3b23 | 1247 | /* If line was specified by address, |
0378c332 | 1248 | first print exactly which line, and which file. |
ebcd3b23 MS |
1249 | |
1250 | In this case, sal.symtab == 0 means address is outside of all | |
1251 | known source files, not that user failed to give a filename. */ | |
0378c332 FN |
1252 | if (*arg == '*') |
1253 | { | |
5af949e3 | 1254 | struct gdbarch *gdbarch; |
cdb27c12 | 1255 | |
0378c332 | 1256 | if (sal.symtab == 0) |
8a3fe4f8 | 1257 | error (_("No source file for address %s."), |
2b69941d | 1258 | paddress (get_current_arch (), sal.pc)); |
5af949e3 | 1259 | |
08feed99 | 1260 | gdbarch = SYMTAB_OBJFILE (sal.symtab)->arch (); |
0378c332 FN |
1261 | sym = find_pc_function (sal.pc); |
1262 | if (sym) | |
50ee7535 | 1263 | printf_filtered ("%s is in %s (%s:%d).\n", |
5af949e3 | 1264 | paddress (gdbarch, sal.pc), |
987012b8 | 1265 | sym->print_name (), |
05cba821 | 1266 | symtab_to_filename_for_display (sal.symtab), sal.line); |
0378c332 | 1267 | else |
5af949e3 UW |
1268 | printf_filtered ("%s is at %s:%d.\n", |
1269 | paddress (gdbarch, sal.pc), | |
05cba821 | 1270 | symtab_to_filename_for_display (sal.symtab), sal.line); |
0378c332 FN |
1271 | } |
1272 | ||
ebcd3b23 MS |
1273 | /* If line was not specified by just a line number, and it does not |
1274 | imply a symtab, it must be an undebuggable symbol which means no | |
1275 | source code. */ | |
0378c332 FN |
1276 | |
1277 | if (!linenum_beg && sal.symtab == 0) | |
8a3fe4f8 | 1278 | error (_("No line number known for %s."), arg); |
0378c332 FN |
1279 | |
1280 | /* If this command is repeated with RET, | |
1281 | turn it into the no-arg variant. */ | |
1282 | ||
1283 | if (from_tty) | |
85c4be7c | 1284 | set_repeat_arguments (""); |
0378c332 FN |
1285 | |
1286 | if (dummy_beg && sal_end.symtab == 0) | |
8a3fe4f8 | 1287 | error (_("No default source file yet. Do \"help list\".")); |
0378c332 | 1288 | if (dummy_beg) |
0e2a2133 AB |
1289 | { |
1290 | source_lines_range range (sal_end.line + 1, | |
1291 | source_lines_range::BACKWARD); | |
1292 | print_source_lines (sal_end.symtab, range, 0); | |
1293 | } | |
0378c332 | 1294 | else if (sal.symtab == 0) |
8a3fe4f8 | 1295 | error (_("No default source file yet. Do \"help list\".")); |
0378c332 FN |
1296 | else if (no_end) |
1297 | { | |
6c5b2ebe | 1298 | for (int i = 0; i < sals.size (); i++) |
0d999a6e | 1299 | { |
6c5b2ebe | 1300 | sal = sals[i]; |
0d999a6e ZZ |
1301 | int first_line = sal.line - get_lines_to_list () / 2; |
1302 | if (first_line < 1) | |
1303 | first_line = 1; | |
6c5b2ebe | 1304 | if (sals.size () > 1) |
06871ae8 | 1305 | print_sal_location (sal); |
0e2a2133 | 1306 | print_source_lines (sal.symtab, source_lines_range (first_line), 0); |
0d999a6e | 1307 | } |
0378c332 | 1308 | } |
0e2a2133 AB |
1309 | else if (dummy_end) |
1310 | print_source_lines (sal.symtab, source_lines_range (sal.line), 0); | |
0378c332 | 1311 | else |
0e2a2133 AB |
1312 | print_source_lines (sal.symtab, |
1313 | source_lines_range (sal.line, (sal_end.line + 1)), | |
0378c332 FN |
1314 | 0); |
1315 | } | |
1316 | ||
d14508fe DE |
1317 | /* Subroutine of disassemble_command to simplify it. |
1318 | Perform the disassembly. | |
1319 | NAME is the name of the function if known, or NULL. | |
1320 | [LOW,HIGH) are the range of addresses to disassemble. | |
e9480230 KB |
1321 | BLOCK is the block to disassemble; it needs to be provided |
1322 | when non-contiguous blocks are disassembled; otherwise | |
1323 | it can be NULL. | |
d14508fe DE |
1324 | MIXED is non-zero to print source with the assembler. */ |
1325 | ||
1326 | static void | |
13274fc3 | 1327 | print_disassembly (struct gdbarch *gdbarch, const char *name, |
9a24775b | 1328 | CORE_ADDR low, CORE_ADDR high, |
e9480230 | 1329 | const struct block *block, |
9a24775b | 1330 | gdb_disassembly_flags flags) |
d14508fe DE |
1331 | { |
1332 | #if defined(TUI) | |
f9ba974d TT |
1333 | if (tui_is_window_visible (DISASSEM_WIN)) |
1334 | tui_show_assembly (gdbarch, low); | |
1335 | else | |
d14508fe DE |
1336 | #endif |
1337 | { | |
1338 | printf_filtered ("Dump of assembler code "); | |
1339 | if (name != NULL) | |
e9480230 KB |
1340 | printf_filtered ("for function %s:\n", name); |
1341 | if (block == nullptr || BLOCK_CONTIGUOUS_P (block)) | |
1342 | { | |
1343 | if (name == NULL) | |
1344 | printf_filtered ("from %s to %s:\n", | |
1345 | paddress (gdbarch, low), paddress (gdbarch, high)); | |
d14508fe | 1346 | |
e9480230 KB |
1347 | /* Dump the specified range. */ |
1348 | gdb_disassembly (gdbarch, current_uiout, flags, -1, low, high); | |
1349 | } | |
1350 | else | |
1351 | { | |
1352 | for (int i = 0; i < BLOCK_NRANGES (block); i++) | |
1353 | { | |
b926417a TT |
1354 | CORE_ADDR range_low = BLOCK_RANGE_START (block, i); |
1355 | CORE_ADDR range_high = BLOCK_RANGE_END (block, i); | |
e9480230 | 1356 | printf_filtered (_("Address range %s to %s:\n"), |
b926417a TT |
1357 | paddress (gdbarch, range_low), |
1358 | paddress (gdbarch, range_high)); | |
1359 | gdb_disassembly (gdbarch, current_uiout, flags, -1, | |
1360 | range_low, range_high); | |
e9480230 KB |
1361 | } |
1362 | } | |
d14508fe | 1363 | printf_filtered ("End of assembler dump.\n"); |
d14508fe | 1364 | } |
d14508fe DE |
1365 | } |
1366 | ||
1367 | /* Subroutine of disassemble_command to simplify it. | |
9c419145 | 1368 | Print a disassembly of the current function according to FLAGS. */ |
d14508fe DE |
1369 | |
1370 | static void | |
9a24775b | 1371 | disassemble_current_function (gdb_disassembly_flags flags) |
d14508fe | 1372 | { |
13274fc3 UW |
1373 | struct frame_info *frame; |
1374 | struct gdbarch *gdbarch; | |
d14508fe | 1375 | CORE_ADDR low, high, pc; |
2c02bd72 | 1376 | const char *name; |
e9480230 | 1377 | const struct block *block; |
d14508fe | 1378 | |
13274fc3 UW |
1379 | frame = get_selected_frame (_("No frame selected.")); |
1380 | gdbarch = get_frame_arch (frame); | |
9bf4bce9 | 1381 | pc = get_frame_address_in_block (frame); |
e9480230 | 1382 | if (find_pc_partial_function (pc, &name, &low, &high, &block) == 0) |
d14508fe DE |
1383 | error (_("No function contains program counter for selected frame.")); |
1384 | #if defined(TUI) | |
1385 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
1386 | `tui_version'. */ | |
1387 | if (tui_active) | |
1388 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
13274fc3 | 1389 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
d14508fe | 1390 | #endif |
13274fc3 | 1391 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
d14508fe | 1392 | |
e9480230 | 1393 | print_disassembly (gdbarch, name, low, high, block, flags); |
d14508fe DE |
1394 | } |
1395 | ||
1396 | /* Dump a specified section of assembly code. | |
1397 | ||
1398 | Usage: | |
6ff0ba5f | 1399 | disassemble [/mrs] |
d14508fe | 1400 | - dump the assembly code for the function of the current pc |
6ff0ba5f | 1401 | disassemble [/mrs] addr |
d14508fe | 1402 | - dump the assembly code for the function at ADDR |
6ff0ba5f DE |
1403 | disassemble [/mrs] low,high |
1404 | disassemble [/mrs] low,+length | |
53a71c06 | 1405 | - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length) |
d14508fe | 1406 | |
6ff0ba5f DE |
1407 | A /m modifier will include source code with the assembly in a |
1408 | "source centric" view. This view lists only the file of the first insn, | |
1409 | even if other source files are involved (e.g., inlined functions), and | |
1410 | the output is in source order, even with optimized code. This view is | |
1411 | considered deprecated as it hasn't been useful in practice. | |
1412 | ||
1413 | A /r modifier will include raw instructions in hex with the assembly. | |
1414 | ||
1415 | A /s modifier will include source code with the assembly, like /m, with | |
1416 | two important differences: | |
1417 | 1) The output is still in pc address order. | |
1418 | 2) File names and contents for all relevant source files are displayed. */ | |
83c31e7d | 1419 | |
83c31e7d | 1420 | static void |
0b39b52e | 1421 | disassemble_command (const char *arg, int from_tty) |
83c31e7d | 1422 | { |
13274fc3 | 1423 | struct gdbarch *gdbarch = get_current_arch (); |
83c31e7d | 1424 | CORE_ADDR low, high; |
2c02bd72 | 1425 | const char *name; |
d36fc00b | 1426 | CORE_ADDR pc; |
9a24775b | 1427 | gdb_disassembly_flags flags; |
bbc13ae3 | 1428 | const char *p; |
e9480230 | 1429 | const struct block *block = nullptr; |
83c31e7d | 1430 | |
bbc13ae3 | 1431 | p = arg; |
83c31e7d | 1432 | name = NULL; |
e6158f16 | 1433 | flags = 0; |
d14508fe | 1434 | |
bbc13ae3 | 1435 | if (p && *p == '/') |
83c31e7d | 1436 | { |
bbc13ae3 | 1437 | ++p; |
d14508fe | 1438 | |
bbc13ae3 | 1439 | if (*p == '\0') |
d14508fe DE |
1440 | error (_("Missing modifier.")); |
1441 | ||
bbc13ae3 | 1442 | while (*p && ! isspace (*p)) |
d14508fe | 1443 | { |
bbc13ae3 | 1444 | switch (*p++) |
d14508fe DE |
1445 | { |
1446 | case 'm': | |
6ff0ba5f | 1447 | flags |= DISASSEMBLY_SOURCE_DEPRECATED; |
e6158f16 HZ |
1448 | break; |
1449 | case 'r': | |
1450 | flags |= DISASSEMBLY_RAW_INSN; | |
d14508fe | 1451 | break; |
6ff0ba5f DE |
1452 | case 's': |
1453 | flags |= DISASSEMBLY_SOURCE; | |
1454 | break; | |
d14508fe DE |
1455 | default: |
1456 | error (_("Invalid disassembly modifier.")); | |
1457 | } | |
1458 | } | |
1459 | ||
f1735a53 | 1460 | p = skip_spaces (p); |
d14508fe DE |
1461 | } |
1462 | ||
6ff0ba5f DE |
1463 | if ((flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
1464 | == (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) | |
1465 | error (_("Cannot specify both /m and /s.")); | |
1466 | ||
bbc13ae3 | 1467 | if (! p || ! *p) |
d14508fe | 1468 | { |
9c419145 | 1469 | flags |= DISASSEMBLY_OMIT_FNAME; |
e6158f16 | 1470 | disassemble_current_function (flags); |
d14508fe | 1471 | return; |
83c31e7d | 1472 | } |
d14508fe | 1473 | |
bbc13ae3 KS |
1474 | pc = value_as_address (parse_to_comma_and_eval (&p)); |
1475 | if (p[0] == ',') | |
1476 | ++p; | |
1477 | if (p[0] == '\0') | |
83c31e7d FN |
1478 | { |
1479 | /* One argument. */ | |
e9480230 | 1480 | if (find_pc_partial_function (pc, &name, &low, &high, &block) == 0) |
8a3fe4f8 | 1481 | error (_("No function contains specified address.")); |
83c31e7d | 1482 | #if defined(TUI) |
021e7609 AC |
1483 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1484 | `tui_version'. */ | |
22940a24 AC |
1485 | if (tui_active) |
1486 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
13274fc3 | 1487 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
83c31e7d | 1488 | #endif |
13274fc3 | 1489 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
9c419145 | 1490 | flags |= DISASSEMBLY_OMIT_FNAME; |
83c31e7d FN |
1491 | } |
1492 | else | |
1493 | { | |
1494 | /* Two arguments. */ | |
53a71c06 | 1495 | int incl_flag = 0; |
21a0512e | 1496 | low = pc; |
f1735a53 | 1497 | p = skip_spaces (p); |
bbc13ae3 | 1498 | if (p[0] == '+') |
53a71c06 | 1499 | { |
bbc13ae3 | 1500 | ++p; |
53a71c06 CR |
1501 | incl_flag = 1; |
1502 | } | |
bbc13ae3 | 1503 | high = parse_and_eval_address (p); |
53a71c06 CR |
1504 | if (incl_flag) |
1505 | high += low; | |
83c31e7d FN |
1506 | } |
1507 | ||
e9480230 | 1508 | print_disassembly (gdbarch, name, low, high, block, flags); |
83c31e7d FN |
1509 | } |
1510 | ||
d318976c | 1511 | static void |
0b39b52e | 1512 | make_command (const char *arg, int from_tty) |
d318976c | 1513 | { |
d318976c | 1514 | if (arg == 0) |
be47f9e8 | 1515 | shell_escape ("make", from_tty); |
d318976c FN |
1516 | else |
1517 | { | |
be47f9e8 | 1518 | std::string cmd = std::string ("make ") + arg; |
d318976c | 1519 | |
be47f9e8 PA |
1520 | shell_escape (cmd.c_str (), from_tty); |
1521 | } | |
d318976c FN |
1522 | } |
1523 | ||
d318976c | 1524 | static void |
dede02ce | 1525 | show_user (const char *args, int from_tty) |
d318976c FN |
1526 | { |
1527 | struct cmd_list_element *c; | |
d318976c FN |
1528 | |
1529 | if (args) | |
1530 | { | |
6f937416 | 1531 | const char *comname = args; |
cdb27c12 | 1532 | |
adb483fe | 1533 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); |
a9f116cb | 1534 | if (!cli_user_command_p (c)) |
8a3fe4f8 | 1535 | error (_("Not a user command.")); |
adb483fe | 1536 | show_user_1 (c, "", args, gdb_stdout); |
d318976c FN |
1537 | } |
1538 | else | |
1539 | { | |
1540 | for (c = cmdlist; c; c = c->next) | |
1541 | { | |
a9f116cb | 1542 | if (cli_user_command_p (c) || c->prefixlist != NULL) |
adb483fe | 1543 | show_user_1 (c, "", c->name, gdb_stdout); |
d318976c FN |
1544 | } |
1545 | } | |
1546 | } | |
1547 | ||
1548 | /* Search through names of commands and documentations for a certain | |
ebcd3b23 MS |
1549 | regular expression. */ |
1550 | ||
66d8c862 PW |
1551 | static void |
1552 | apropos_command (const char *arg, int from_tty) | |
d318976c | 1553 | { |
66d8c862 PW |
1554 | bool verbose = arg && check_for_argument (&arg, "-v", 2); |
1555 | ||
66d8c862 | 1556 | if (arg == NULL || *arg == '\0') |
f55af66d | 1557 | error (_("REGEXP string is empty")); |
d318976c | 1558 | |
66d8c862 | 1559 | compiled_regex pattern (arg, REG_ICASE, |
2d7cc5c7 | 1560 | _("Error in regular expression")); |
dc92e161 | 1561 | |
66d8c862 | 1562 | apropos_cmd (gdb_stdout, cmdlist, verbose, pattern, ""); |
d318976c | 1563 | } |
5a56e9c5 DE |
1564 | |
1565 | /* Subroutine of alias_command to simplify it. | |
1566 | Return the first N elements of ARGV flattened back to a string | |
1567 | with a space separating each element. | |
1568 | ARGV may not be NULL. | |
1569 | This does not take care of quoting elements in case they contain spaces | |
1570 | on purpose. */ | |
1571 | ||
a97e29d2 TT |
1572 | static std::string |
1573 | argv_to_string (char **argv, int n) | |
5a56e9c5 DE |
1574 | { |
1575 | int i; | |
a97e29d2 | 1576 | std::string result; |
5a56e9c5 DE |
1577 | |
1578 | gdb_assert (argv != NULL); | |
1579 | gdb_assert (n >= 0 && n <= countargv (argv)); | |
1580 | ||
1581 | for (i = 0; i < n; ++i) | |
1582 | { | |
1583 | if (i > 0) | |
a97e29d2 TT |
1584 | result += " "; |
1585 | result += argv[i]; | |
5a56e9c5 DE |
1586 | } |
1587 | ||
1588 | return result; | |
1589 | } | |
1590 | ||
1591 | /* Subroutine of alias_command to simplify it. | |
6fe87677 | 1592 | Return true if COMMAND exists, unambiguously. Otherwise false. */ |
5a56e9c5 | 1593 | |
6fe87677 | 1594 | static bool |
6f937416 | 1595 | valid_command_p (const char *command) |
5a56e9c5 DE |
1596 | { |
1597 | struct cmd_list_element *c; | |
1598 | ||
1599 | c = lookup_cmd_1 (& command, cmdlist, NULL, 1); | |
1600 | ||
1601 | if (c == NULL || c == (struct cmd_list_element *) -1) | |
6fe87677 | 1602 | return false; |
5a56e9c5 DE |
1603 | |
1604 | /* This is the slightly tricky part. | |
1605 | lookup_cmd_1 will return a pointer to the last part of COMMAND | |
1606 | to match, leaving COMMAND pointing at the remainder. */ | |
1607 | while (*command == ' ' || *command == '\t') | |
1608 | ++command; | |
1609 | return *command == '\0'; | |
1610 | } | |
1611 | ||
7f31862a PA |
1612 | /* Called when "alias" was incorrectly used. */ |
1613 | ||
1614 | static void | |
1615 | alias_usage_error (void) | |
1616 | { | |
1617 | error (_("Usage: alias [-a] [--] ALIAS = COMMAND")); | |
1618 | } | |
1619 | ||
5a56e9c5 DE |
1620 | /* Make an alias of an existing command. */ |
1621 | ||
1622 | static void | |
0b39b52e | 1623 | alias_command (const char *args, int from_tty) |
5a56e9c5 DE |
1624 | { |
1625 | int i, alias_argc, command_argc; | |
1626 | int abbrev_flag = 0; | |
0b39b52e | 1627 | const char *equals; |
a97e29d2 | 1628 | const char *alias, *command; |
5a56e9c5 DE |
1629 | |
1630 | if (args == NULL || strchr (args, '=') == NULL) | |
7f31862a | 1631 | alias_usage_error (); |
5a56e9c5 | 1632 | |
773a1edc TT |
1633 | equals = strchr (args, '='); |
1634 | std::string args2 (args, equals - args); | |
1635 | ||
1636 | gdb_argv built_alias_argv (args2.c_str ()); | |
1637 | gdb_argv command_argv (equals + 1); | |
5a56e9c5 | 1638 | |
773a1edc TT |
1639 | char **alias_argv = built_alias_argv.get (); |
1640 | while (alias_argv[0] != NULL) | |
5a56e9c5 | 1641 | { |
773a1edc | 1642 | if (strcmp (alias_argv[0], "-a") == 0) |
5a56e9c5 DE |
1643 | { |
1644 | ++alias_argv; | |
1645 | abbrev_flag = 1; | |
1646 | } | |
773a1edc | 1647 | else if (strcmp (alias_argv[0], "--") == 0) |
5a56e9c5 DE |
1648 | { |
1649 | ++alias_argv; | |
1650 | break; | |
1651 | } | |
1652 | else | |
1653 | break; | |
1654 | } | |
1655 | ||
1656 | if (alias_argv[0] == NULL || command_argv[0] == NULL | |
1657 | || *alias_argv[0] == '\0' || *command_argv[0] == '\0') | |
7f31862a | 1658 | alias_usage_error (); |
5a56e9c5 DE |
1659 | |
1660 | for (i = 0; alias_argv[i] != NULL; ++i) | |
1661 | { | |
1662 | if (! valid_user_defined_cmd_name_p (alias_argv[i])) | |
1663 | { | |
1664 | if (i == 0) | |
1665 | error (_("Invalid command name: %s"), alias_argv[i]); | |
1666 | else | |
1667 | error (_("Invalid command element name: %s"), alias_argv[i]); | |
1668 | } | |
1669 | } | |
1670 | ||
1671 | alias_argc = countargv (alias_argv); | |
773a1edc | 1672 | command_argc = command_argv.count (); |
5a56e9c5 DE |
1673 | |
1674 | /* COMMAND must exist. | |
1675 | Reconstruct the command to remove any extraneous spaces, | |
1676 | for better error messages. */ | |
773a1edc TT |
1677 | std::string command_string (argv_to_string (command_argv.get (), |
1678 | command_argc)); | |
a97e29d2 | 1679 | command = command_string.c_str (); |
5a56e9c5 DE |
1680 | if (! valid_command_p (command)) |
1681 | error (_("Invalid command to alias to: %s"), command); | |
1682 | ||
1683 | /* ALIAS must not exist. */ | |
a97e29d2 TT |
1684 | std::string alias_string (argv_to_string (alias_argv, alias_argc)); |
1685 | alias = alias_string.c_str (); | |
5a56e9c5 DE |
1686 | if (valid_command_p (alias)) |
1687 | error (_("Alias already exists: %s"), alias); | |
1688 | ||
1689 | /* If ALIAS is one word, it is an alias for the entire COMMAND. | |
1690 | Example: alias spe = set print elements | |
1691 | ||
1692 | Otherwise ALIAS and COMMAND must have the same number of words, | |
b65b566c PW |
1693 | and every word except the last must identify the same prefix command; |
1694 | and the last word of ALIAS is made an alias of the last word of COMMAND. | |
5a56e9c5 DE |
1695 | Example: alias set print elms = set pr elem |
1696 | Note that unambiguous abbreviations are allowed. */ | |
1697 | ||
1698 | if (alias_argc == 1) | |
1699 | { | |
1700 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1701 | add_com_alias (xstrdup (alias_argv[0]), command, class_alias, | |
1702 | abbrev_flag); | |
1703 | } | |
1704 | else | |
1705 | { | |
6f937416 | 1706 | const char *alias_prefix, *command_prefix; |
5a56e9c5 DE |
1707 | struct cmd_list_element *c_alias, *c_command; |
1708 | ||
1709 | if (alias_argc != command_argc) | |
1710 | error (_("Mismatched command length between ALIAS and COMMAND.")); | |
1711 | ||
1712 | /* Create copies of ALIAS and COMMAND without the last word, | |
b65b566c PW |
1713 | and use that to verify the leading elements give the same |
1714 | prefix command. */ | |
a97e29d2 TT |
1715 | std::string alias_prefix_string (argv_to_string (alias_argv, |
1716 | alias_argc - 1)); | |
b65b566c | 1717 | std::string command_prefix_string (argv_to_string (command_argv.get (), |
a97e29d2 TT |
1718 | command_argc - 1)); |
1719 | alias_prefix = alias_prefix_string.c_str (); | |
1720 | command_prefix = command_prefix_string.c_str (); | |
5a56e9c5 DE |
1721 | |
1722 | c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1); | |
1723 | /* We've already tried to look up COMMAND. */ | |
1724 | gdb_assert (c_command != NULL | |
1725 | && c_command != (struct cmd_list_element *) -1); | |
1726 | gdb_assert (c_command->prefixlist != NULL); | |
1727 | c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1); | |
1728 | if (c_alias != c_command) | |
1729 | error (_("ALIAS and COMMAND prefixes do not match.")); | |
1730 | ||
1731 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1732 | add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]), | |
1733 | command_argv[command_argc - 1], | |
1734 | class_alias, abbrev_flag, c_command->prefixlist); | |
1735 | } | |
1736 | } | |
d318976c | 1737 | \f |
06871ae8 PA |
1738 | /* Print the file / line number / symbol name of the location |
1739 | specified by SAL. */ | |
1740 | ||
1741 | static void | |
1742 | print_sal_location (const symtab_and_line &sal) | |
1743 | { | |
1744 | scoped_restore_current_program_space restore_pspace; | |
1745 | set_current_program_space (sal.pspace); | |
1746 | ||
1747 | const char *sym_name = NULL; | |
1748 | if (sal.symbol != NULL) | |
987012b8 | 1749 | sym_name = sal.symbol->print_name (); |
06871ae8 PA |
1750 | printf_filtered (_("file: \"%s\", line number: %d, symbol: \"%s\"\n"), |
1751 | symtab_to_filename_for_display (sal.symtab), | |
1752 | sal.line, sym_name != NULL ? sym_name : "???"); | |
1753 | } | |
1754 | ||
0378c332 | 1755 | /* Print a list of files and line numbers which a user may choose from |
ebcd3b23 | 1756 | in order to list a function which was specified ambiguously (as |
6c5b2ebe PA |
1757 | with `list classname::overloadedfuncname', for example). The SALS |
1758 | array provides the filenames and line numbers. FORMAT is a | |
1759 | printf-style format string used to tell the user what was | |
e439fa14 | 1760 | ambiguous. */ |
0378c332 FN |
1761 | |
1762 | static void | |
6c5b2ebe PA |
1763 | ambiguous_line_spec (gdb::array_view<const symtab_and_line> sals, |
1764 | const char *format, ...) | |
0378c332 | 1765 | { |
e439fa14 PA |
1766 | va_list ap; |
1767 | va_start (ap, format); | |
1768 | vprintf_filtered (format, ap); | |
1769 | va_end (ap); | |
1770 | ||
6c5b2ebe | 1771 | for (const auto &sal : sals) |
06871ae8 | 1772 | print_sal_location (sal); |
0378c332 FN |
1773 | } |
1774 | ||
6c5b2ebe PA |
1775 | /* Comparison function for filter_sals. Returns a qsort-style |
1776 | result. */ | |
f8eba3c6 TT |
1777 | |
1778 | static int | |
6c5b2ebe | 1779 | cmp_symtabs (const symtab_and_line &sala, const symtab_and_line &salb) |
f8eba3c6 | 1780 | { |
6c5b2ebe PA |
1781 | const char *dira = SYMTAB_DIRNAME (sala.symtab); |
1782 | const char *dirb = SYMTAB_DIRNAME (salb.symtab); | |
f8eba3c6 TT |
1783 | int r; |
1784 | ||
ee6f8984 | 1785 | if (dira == NULL) |
f8eba3c6 | 1786 | { |
ee6f8984 | 1787 | if (dirb != NULL) |
f8eba3c6 TT |
1788 | return -1; |
1789 | } | |
ee6f8984 | 1790 | else if (dirb == NULL) |
f8eba3c6 | 1791 | { |
ee6f8984 | 1792 | if (dira != NULL) |
f8eba3c6 TT |
1793 | return 1; |
1794 | } | |
1795 | else | |
1796 | { | |
ee6f8984 | 1797 | r = filename_cmp (dira, dirb); |
f8eba3c6 TT |
1798 | if (r) |
1799 | return r; | |
1800 | } | |
1801 | ||
6c5b2ebe | 1802 | r = filename_cmp (sala.symtab->filename, salb.symtab->filename); |
f8eba3c6 TT |
1803 | if (r) |
1804 | return r; | |
1805 | ||
6c5b2ebe | 1806 | if (sala.line < salb.line) |
f8eba3c6 | 1807 | return -1; |
6c5b2ebe | 1808 | return sala.line == salb.line ? 0 : 1; |
f8eba3c6 TT |
1809 | } |
1810 | ||
1811 | /* Remove any SALs that do not match the current program space, or | |
1812 | which appear to be "file:line" duplicates. */ | |
1813 | ||
1814 | static void | |
6c5b2ebe | 1815 | filter_sals (std::vector<symtab_and_line> &sals) |
f8eba3c6 | 1816 | { |
6c5b2ebe PA |
1817 | /* Remove SALs that do not match. */ |
1818 | auto from = std::remove_if (sals.begin (), sals.end (), | |
1819 | [&] (const symtab_and_line &sal) | |
1820 | { return (sal.pspace != current_program_space || sal.symtab == NULL); }); | |
1821 | ||
1822 | /* Remove dups. */ | |
1823 | std::sort (sals.begin (), from, | |
1824 | [] (const symtab_and_line &sala, const symtab_and_line &salb) | |
1825 | { return cmp_symtabs (sala, salb) < 0; }); | |
1826 | ||
1827 | from = std::unique (sals.begin (), from, | |
1828 | [&] (const symtab_and_line &sala, | |
1829 | const symtab_and_line &salb) | |
1830 | { return cmp_symtabs (sala, salb) == 0; }); | |
1831 | ||
1832 | sals.erase (from, sals.end ()); | |
f8eba3c6 TT |
1833 | } |
1834 | ||
d318976c FN |
1835 | void |
1836 | init_cmd_lists (void) | |
1837 | { | |
20f01a46 | 1838 | max_user_call_depth = 1024; |
d318976c FN |
1839 | } |
1840 | ||
920d2a44 AC |
1841 | static void |
1842 | show_info_verbose (struct ui_file *file, int from_tty, | |
1843 | struct cmd_list_element *c, | |
1844 | const char *value) | |
1845 | { | |
1846 | if (info_verbose) | |
9a2b4c1b MS |
1847 | fprintf_filtered (file, |
1848 | _("Verbose printing of informational messages is %s.\n"), | |
1849 | value); | |
920d2a44 AC |
1850 | else |
1851 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); | |
1852 | } | |
1853 | ||
1854 | static void | |
1855 | show_history_expansion_p (struct ui_file *file, int from_tty, | |
1856 | struct cmd_list_element *c, const char *value) | |
1857 | { | |
1858 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), | |
1859 | value); | |
1860 | } | |
1861 | ||
920d2a44 AC |
1862 | static void |
1863 | show_remote_debug (struct ui_file *file, int from_tty, | |
1864 | struct cmd_list_element *c, const char *value) | |
1865 | { | |
1866 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), | |
1867 | value); | |
1868 | } | |
1869 | ||
1870 | static void | |
1871 | show_remote_timeout (struct ui_file *file, int from_tty, | |
1872 | struct cmd_list_element *c, const char *value) | |
1873 | { | |
9a2b4c1b MS |
1874 | fprintf_filtered (file, |
1875 | _("Timeout limit to wait for target to respond is %s.\n"), | |
920d2a44 AC |
1876 | value); |
1877 | } | |
1878 | ||
1879 | static void | |
1880 | show_max_user_call_depth (struct ui_file *file, int from_tty, | |
1881 | struct cmd_list_element *c, const char *value) | |
1882 | { | |
9a2b4c1b MS |
1883 | fprintf_filtered (file, |
1884 | _("The max call depth for user-defined commands is %s.\n"), | |
920d2a44 AC |
1885 | value); |
1886 | } | |
1887 | ||
9ad9b77d PW |
1888 | /* Returns the cmd_list_element in SHOWLIST corresponding to the first |
1889 | argument of ARGV, which must contain one single value. | |
1890 | Throws an error if no value provided, or value not correct. | |
1891 | FNNAME is used in the error message. */ | |
1892 | ||
1893 | static cmd_list_element * | |
1894 | setting_cmd (const char *fnname, struct cmd_list_element *showlist, | |
1895 | int argc, struct value **argv) | |
1896 | { | |
1897 | if (argc == 0) | |
1898 | error (_("You must provide an argument to %s"), fnname); | |
1899 | if (argc != 1) | |
1900 | error (_("You can only provide one argument to %s"), fnname); | |
1901 | ||
1902 | struct type *type0 = check_typedef (value_type (argv[0])); | |
1903 | ||
1904 | if (TYPE_CODE (type0) != TYPE_CODE_ARRAY | |
1905 | && TYPE_CODE (type0) != TYPE_CODE_STRING) | |
1906 | error (_("First argument of %s must be a string."), fnname); | |
1907 | ||
1908 | const char *a0 = (const char *) value_contents (argv[0]); | |
1909 | cmd_list_element *cmd = lookup_cmd (&a0, showlist, "", -1, 0); | |
1910 | ||
1911 | if (cmd == nullptr || cmd_type (cmd) != show_cmd) | |
1912 | error (_("First argument of %s must be a " | |
1913 | "valid setting of the 'show' command."), fnname); | |
1914 | ||
1915 | return cmd; | |
1916 | } | |
1917 | ||
1918 | /* Builds a value from the show CMD. */ | |
1919 | ||
1920 | static struct value * | |
1921 | value_from_setting (const cmd_list_element *cmd, struct gdbarch *gdbarch) | |
1922 | { | |
1923 | switch (cmd->var_type) | |
1924 | { | |
1925 | case var_integer: | |
1926 | if (*(int *) cmd->var == INT_MAX) | |
1927 | return value_from_longest (builtin_type (gdbarch)->builtin_int, | |
1928 | 0); | |
1929 | else | |
1930 | return value_from_longest (builtin_type (gdbarch)->builtin_int, | |
1931 | *(int *) cmd->var); | |
1932 | case var_zinteger: | |
1933 | return value_from_longest (builtin_type (gdbarch)->builtin_int, | |
1934 | *(int *) cmd->var); | |
1935 | case var_boolean: | |
1936 | return value_from_longest (builtin_type (gdbarch)->builtin_int, | |
1937 | *(bool *) cmd->var ? 1 : 0); | |
1938 | case var_zuinteger_unlimited: | |
1939 | return value_from_longest (builtin_type (gdbarch)->builtin_int, | |
1940 | *(int *) cmd->var); | |
1941 | case var_auto_boolean: | |
1942 | { | |
1943 | int val; | |
1944 | ||
1945 | switch (*(enum auto_boolean*) cmd->var) | |
1946 | { | |
1947 | case AUTO_BOOLEAN_TRUE: | |
1948 | val = 1; | |
1949 | break; | |
1950 | case AUTO_BOOLEAN_FALSE: | |
1951 | val = 0; | |
1952 | break; | |
1953 | case AUTO_BOOLEAN_AUTO: | |
1954 | val = -1; | |
1955 | break; | |
1956 | default: | |
1957 | gdb_assert_not_reached ("invalid var_auto_boolean"); | |
1958 | } | |
1959 | return value_from_longest (builtin_type (gdbarch)->builtin_int, | |
1960 | val); | |
1961 | } | |
1962 | case var_uinteger: | |
1963 | if (*(unsigned int *) cmd->var == UINT_MAX) | |
1964 | return value_from_ulongest | |
1965 | (builtin_type (gdbarch)->builtin_unsigned_int, 0); | |
1966 | else | |
1967 | return value_from_ulongest | |
1968 | (builtin_type (gdbarch)->builtin_unsigned_int, | |
1969 | *(unsigned int *) cmd->var); | |
1970 | case var_zuinteger: | |
1971 | return value_from_ulongest (builtin_type (gdbarch)->builtin_unsigned_int, | |
1972 | *(unsigned int *) cmd->var); | |
1973 | case var_string: | |
1974 | case var_string_noescape: | |
1975 | case var_optional_filename: | |
1976 | case var_filename: | |
1977 | case var_enum: | |
1978 | if (*(char **) cmd->var) | |
1979 | return value_cstring (*(char **) cmd->var, strlen (*(char **) cmd->var), | |
1980 | builtin_type (gdbarch)->builtin_char); | |
1981 | else | |
1982 | return value_cstring ("", 1, | |
1983 | builtin_type (gdbarch)->builtin_char); | |
1984 | default: | |
1985 | gdb_assert_not_reached ("bad var_type"); | |
1986 | } | |
1987 | } | |
1988 | ||
1989 | /* Implementation of the convenience function $_gdb_setting. */ | |
1990 | ||
1991 | static struct value * | |
1992 | gdb_setting_internal_fn (struct gdbarch *gdbarch, | |
1993 | const struct language_defn *language, | |
1994 | void *cookie, int argc, struct value **argv) | |
1995 | { | |
1996 | return value_from_setting (setting_cmd ("$_gdb_setting", showlist, | |
1997 | argc, argv), | |
1998 | gdbarch); | |
1999 | } | |
2000 | ||
2001 | /* Implementation of the convenience function $_gdb_maint_setting. */ | |
2002 | ||
2003 | static struct value * | |
2004 | gdb_maint_setting_internal_fn (struct gdbarch *gdbarch, | |
2005 | const struct language_defn *language, | |
2006 | void *cookie, int argc, struct value **argv) | |
2007 | { | |
2008 | return value_from_setting (setting_cmd ("$_gdb_maint_setting", | |
2009 | maintenance_show_cmdlist, | |
2010 | argc, argv), | |
2011 | gdbarch); | |
2012 | } | |
2013 | ||
2014 | /* Builds a string value from the show CMD. */ | |
2015 | ||
2016 | static struct value * | |
2017 | str_value_from_setting (const cmd_list_element *cmd, struct gdbarch *gdbarch) | |
2018 | { | |
2019 | switch (cmd->var_type) | |
2020 | { | |
2021 | case var_integer: | |
2022 | case var_zinteger: | |
2023 | case var_boolean: | |
2024 | case var_zuinteger_unlimited: | |
2025 | case var_auto_boolean: | |
2026 | case var_uinteger: | |
2027 | case var_zuinteger: | |
2028 | { | |
2029 | std::string cmd_val = get_setshow_command_value_string (cmd); | |
2030 | ||
2031 | return value_cstring (cmd_val.c_str (), cmd_val.size (), | |
2032 | builtin_type (gdbarch)->builtin_char); | |
2033 | } | |
2034 | ||
2035 | case var_string: | |
2036 | case var_string_noescape: | |
2037 | case var_optional_filename: | |
2038 | case var_filename: | |
2039 | case var_enum: | |
2040 | /* For these cases, we do not use get_setshow_command_value_string, | |
2041 | as this function handle some characters specially, e.g. by | |
2042 | escaping quotes. So, we directly use the cmd->var string value, | |
2043 | similarly to the value_from_setting code for these cases. */ | |
2044 | if (*(char **) cmd->var) | |
2045 | return value_cstring (*(char **) cmd->var, strlen (*(char **) cmd->var), | |
2046 | builtin_type (gdbarch)->builtin_char); | |
2047 | else | |
2048 | return value_cstring ("", 1, | |
2049 | builtin_type (gdbarch)->builtin_char); | |
2050 | ||
2051 | default: | |
2052 | gdb_assert_not_reached ("bad var_type"); | |
2053 | } | |
2054 | } | |
2055 | ||
2056 | /* Implementation of the convenience function $_gdb_setting_str. */ | |
2057 | ||
2058 | static struct value * | |
2059 | gdb_setting_str_internal_fn (struct gdbarch *gdbarch, | |
2060 | const struct language_defn *language, | |
2061 | void *cookie, int argc, struct value **argv) | |
2062 | { | |
2063 | return str_value_from_setting (setting_cmd ("$_gdb_setting_str", | |
2064 | showlist, argc, argv), | |
2065 | gdbarch); | |
2066 | } | |
2067 | ||
2068 | ||
2069 | /* Implementation of the convenience function $_gdb_maint_setting_str. */ | |
2070 | ||
2071 | static struct value * | |
2072 | gdb_maint_setting_str_internal_fn (struct gdbarch *gdbarch, | |
2073 | const struct language_defn *language, | |
2074 | void *cookie, int argc, struct value **argv) | |
2075 | { | |
2076 | return str_value_from_setting (setting_cmd ("$_gdb_maint_setting_str", | |
2077 | maintenance_show_cmdlist, | |
2078 | argc, argv), | |
2079 | gdbarch); | |
2080 | } | |
2081 | ||
6c265988 | 2082 | void _initialize_cli_cmds (); |
d318976c | 2083 | void |
6c265988 | 2084 | _initialize_cli_cmds () |
d318976c FN |
2085 | { |
2086 | struct cmd_list_element *c; | |
2087 | ||
2088 | /* Define the classes of commands. | |
1bfeeb0f | 2089 | They will appear in the help list in alphabetical order. */ |
d318976c | 2090 | |
0450cc4c | 2091 | add_cmd ("internals", class_maintenance, _("\ |
1a966eab | 2092 | Maintenance commands.\n\ |
d318976c FN |
2093 | Some gdb commands are provided just for use by gdb maintainers.\n\ |
2094 | These commands are subject to frequent change, and may not be as\n\ | |
1a966eab | 2095 | well documented as user commands."), |
d318976c | 2096 | &cmdlist); |
0450cc4c TT |
2097 | add_cmd ("obscure", class_obscure, _("Obscure features."), &cmdlist); |
2098 | add_cmd ("aliases", class_alias, | |
9a2b4c1b | 2099 | _("Aliases of other commands."), &cmdlist); |
0450cc4c | 2100 | add_cmd ("user-defined", class_user, _("\ |
1a966eab | 2101 | User-defined commands.\n\ |
d318976c | 2102 | The commands in this class are those defined by the user.\n\ |
1a966eab | 2103 | Use the \"define\" command to define a command."), &cmdlist); |
0450cc4c | 2104 | add_cmd ("support", class_support, _("Support facilities."), &cmdlist); |
d318976c | 2105 | if (!dbx_commands) |
0450cc4c TT |
2106 | add_cmd ("status", class_info, _("Status inquiries."), &cmdlist); |
2107 | add_cmd ("files", class_files, _("Specifying and examining files."), | |
1a966eab | 2108 | &cmdlist); |
0450cc4c | 2109 | add_cmd ("breakpoints", class_breakpoint, |
1a966eab | 2110 | _("Making program stop at certain points."), &cmdlist); |
0450cc4c TT |
2111 | add_cmd ("data", class_vars, _("Examining data."), &cmdlist); |
2112 | add_cmd ("stack", class_stack, _("\ | |
1a966eab | 2113 | Examining the stack.\n\ |
d318976c FN |
2114 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ |
2115 | counting from zero for the innermost (currently executing) frame.\n\n\ | |
2116 | At any time gdb identifies one frame as the \"selected\" frame.\n\ | |
2117 | Variable lookups are done with respect to the selected frame.\n\ | |
2118 | When the program being debugged stops, gdb selects the innermost frame.\n\ | |
1a966eab | 2119 | The commands below can be used to select other frames by number or address."), |
d318976c | 2120 | &cmdlist); |
0450cc4c | 2121 | add_cmd ("running", class_run, _("Running the program."), &cmdlist); |
d318976c | 2122 | |
ebcd3b23 | 2123 | /* Define general commands. */ |
d318976c | 2124 | |
d729566a | 2125 | add_com ("pwd", class_files, pwd_command, _("\ |
590042fc PW |
2126 | Print working directory.\n\ |
2127 | This is used for your program as well.")); | |
4f8d22e3 | 2128 | |
1a966eab | 2129 | c = add_cmd ("cd", class_files, cd_command, _("\ |
d092c5a2 SDJ |
2130 | Set working directory to DIR for debugger.\n\ |
2131 | The debugger's current working directory specifies where scripts and other\n\ | |
2132 | files that can be loaded by GDB are located.\n\ | |
2133 | In order to change the inferior's current working directory, the recommended\n\ | |
2134 | way is to use the \"set cwd\" command."), &cmdlist); | |
5ba2abeb | 2135 | set_cmd_completer (c, filename_completer); |
d318976c | 2136 | |
1bedd215 AC |
2137 | add_com ("echo", class_support, echo_command, _("\ |
2138 | Print a constant string. Give string as argument.\n\ | |
d318976c FN |
2139 | C escape sequences may be used in the argument.\n\ |
2140 | No newline is added at the end of the argument;\n\ | |
2141 | use \"\\n\" if you want a newline to be printed.\n\ | |
2142 | Since leading and trailing whitespace are ignored in command arguments,\n\ | |
2143 | if you want to print some you must use \"\\\" before leading whitespace\n\ | |
1bedd215 | 2144 | to be printed or after trailing whitespace.")); |
d318976c | 2145 | |
973817a3 JB |
2146 | add_setshow_enum_cmd ("script-extension", class_support, |
2147 | script_ext_enums, &script_ext_mode, _("\ | |
2148 | Set mode for script filename extension recognition."), _("\ | |
2149 | Show mode for script filename extension recognition."), _("\ | |
2150 | off == no filename extension recognition (all sourced files are GDB scripts)\n\ | |
2151 | soft == evaluate script according to filename extension, fallback to GDB script" | |
2152 | "\n\ | |
2153 | strict == evaluate script according to filename extension, error if not supported" | |
2154 | ), | |
2155 | NULL, | |
2156 | show_script_ext_mode, | |
2157 | &setlist, &showlist); | |
2158 | ||
bdb52a22 TT |
2159 | add_com ("quit", class_support, quit_command, _("\ |
2160 | Exit gdb.\n\ | |
2161 | Usage: quit [EXPR]\n\ | |
2162 | The optional expression EXPR, if present, is evaluated and the result\n\ | |
2163 | used as GDB's exit code. The default is zero.")); | |
1bedd215 AC |
2164 | c = add_com ("help", class_support, help_command, |
2165 | _("Print list of commands.")); | |
5ba2abeb | 2166 | set_cmd_completer (c, command_completer); |
d318976c FN |
2167 | add_com_alias ("q", "quit", class_support, 1); |
2168 | add_com_alias ("h", "help", class_support, 1); | |
2169 | ||
5bf193a2 AC |
2170 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ |
2171 | Set verbosity."), _("\ | |
2172 | Show verbosity."), NULL, | |
2173 | set_verbose, | |
920d2a44 | 2174 | show_info_verbose, |
5bf193a2 | 2175 | &setlist, &showlist); |
d318976c | 2176 | |
0743fc83 TT |
2177 | add_basic_prefix_cmd ("history", class_support, _("\ |
2178 | Generic command for setting command history parameters."), | |
2179 | &sethistlist, "set history ", 0, &setlist); | |
2180 | add_show_prefix_cmd ("history", class_support, _("\ | |
2181 | Generic command for showing command history parameters."), | |
2182 | &showhistlist, "show history ", 0, &showlist); | |
d318976c | 2183 | |
5bf193a2 AC |
2184 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ |
2185 | Set history expansion on command input."), _("\ | |
2186 | Show history expansion on command input."), _("\ | |
2187 | Without an argument, history expansion is enabled."), | |
2188 | NULL, | |
920d2a44 | 2189 | show_history_expansion_p, |
5bf193a2 | 2190 | &sethistlist, &showhistlist); |
d318976c | 2191 | |
0743fc83 | 2192 | add_basic_prefix_cmd ("info", class_info, _("\ |
1bedd215 | 2193 | Generic command for showing things about the program being debugged."), |
0743fc83 | 2194 | &infolist, "info ", 0, &cmdlist); |
d318976c | 2195 | add_com_alias ("i", "info", class_info, 1); |
a177aad3 | 2196 | add_com_alias ("inf", "info", class_info, 1); |
d318976c FN |
2197 | |
2198 | add_com ("complete", class_obscure, complete_command, | |
1bedd215 | 2199 | _("List the completions for the rest of the line as a command.")); |
d318976c | 2200 | |
0743fc83 | 2201 | add_show_prefix_cmd ("show", class_info, _("\ |
700b53b1 | 2202 | Generic command for showing things about the debugger."), |
0743fc83 | 2203 | &showlist, "show ", 0, &cmdlist); |
d318976c | 2204 | /* Another way to get at the same thing. */ |
0743fc83 TT |
2205 | add_show_prefix_cmd ("set", class_info, _("Show all GDB settings."), |
2206 | &showlist, "info set ", 0, &infolist); | |
d318976c | 2207 | |
fdbc9870 PA |
2208 | c = add_com ("with", class_vars, with_command, _("\ |
2209 | Temporarily set SETTING to VALUE, run COMMAND, and restore SETTING.\n\ | |
2210 | Usage: with SETTING [VALUE] [-- COMMAND]\n\ | |
2211 | Usage: w SETTING [VALUE] [-- COMMAND]\n\ | |
2212 | With no COMMAND, repeats the last executed command.\n\ | |
2213 | \n\ | |
2214 | SETTING is any setting you can change with the \"set\" subcommands.\n\ | |
2215 | E.g.:\n\ | |
2216 | with language pascal -- print obj\n\ | |
2217 | with print elements unlimited -- print obj\n\ | |
2218 | \n\ | |
2219 | You can change multiple settings using nested with, and use\n\ | |
2220 | abbreviations for commands and/or values. E.g.:\n\ | |
2221 | w la p -- w p el u -- p obj")); | |
2222 | set_cmd_completer_handle_brkchars (c, with_command_completer); | |
2223 | add_com_alias ("w", "with", class_vars, 1); | |
2224 | ||
9ad9b77d PW |
2225 | add_internal_function ("_gdb_setting_str", _("\ |
2226 | $_gdb_setting_str - returns the value of a GDB setting as a string.\n\ | |
2227 | Usage: $_gdb_setting_str (setting)\n\ | |
2228 | \n\ | |
2229 | auto-boolean values are \"off\", \"on\", \"auto\".\n\ | |
2230 | boolean values are \"off\", \"on\".\n\ | |
2231 | Some integer settings accept an unlimited value, returned\n\ | |
2232 | as \"unlimited\"."), | |
2233 | gdb_setting_str_internal_fn, NULL); | |
2234 | ||
2235 | add_internal_function ("_gdb_setting", _("\ | |
2236 | $_gdb_setting - returns the value of a GDB setting.\n\ | |
2237 | Usage: $_gdb_setting (setting)\n\ | |
2238 | auto-boolean values are \"off\", \"on\", \"auto\".\n\ | |
2239 | boolean values are \"off\", \"on\".\n\ | |
2240 | Some integer settings accept an unlimited value, returned\n\ | |
2241 | as 0 or -1 depending on the setting."), | |
2242 | gdb_setting_internal_fn, NULL); | |
2243 | ||
2244 | add_internal_function ("_gdb_maint_setting_str", _("\ | |
2245 | $_gdb_maint_setting_str - returns the value of a GDB maintenance setting as a string.\n\ | |
2246 | Usage: $_gdb_maint_setting_str (setting)\n\ | |
2247 | \n\ | |
2248 | auto-boolean values are \"off\", \"on\", \"auto\".\n\ | |
2249 | boolean values are \"off\", \"on\".\n\ | |
2250 | Some integer settings accept an unlimited value, returned\n\ | |
2251 | as \"unlimited\"."), | |
2252 | gdb_maint_setting_str_internal_fn, NULL); | |
2253 | ||
2254 | add_internal_function ("_gdb_maint_setting", _("\ | |
2255 | $_gdb_maint_setting - returns the value of a GDB maintenance setting.\n\ | |
2256 | Usage: $_gdb_maint_setting (setting)\n\ | |
2257 | auto-boolean values are \"off\", \"on\", \"auto\".\n\ | |
2258 | boolean values are \"off\", \"on\".\n\ | |
2259 | Some integer settings accept an unlimited value, returned\n\ | |
2260 | as 0 or -1 depending on the setting."), | |
2261 | gdb_maint_setting_internal_fn, NULL); | |
2262 | ||
db5f229b | 2263 | add_cmd ("commands", no_set_class, show_commands, _("\ |
1a966eab | 2264 | Show the history of commands you typed.\n\ |
d318976c | 2265 | You can supply a command number to start with, or a `+' to start after\n\ |
1a966eab | 2266 | the previous command number shown."), |
d318976c FN |
2267 | &showlist); |
2268 | ||
db5f229b | 2269 | add_cmd ("version", no_set_class, show_version, |
1a966eab | 2270 | _("Show what version of GDB this is."), &showlist); |
d318976c | 2271 | |
6eaaf48b EZ |
2272 | add_cmd ("configuration", no_set_class, show_configuration, |
2273 | _("Show how GDB was configured at build time."), &showlist); | |
2274 | ||
85c07804 AC |
2275 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ |
2276 | Set debugging of remote protocol."), _("\ | |
2277 | Show debugging of remote protocol."), _("\ | |
d318976c | 2278 | When enabled, each packet sent or received with the remote target\n\ |
85c07804 AC |
2279 | is displayed."), |
2280 | NULL, | |
920d2a44 | 2281 | show_remote_debug, |
85c07804 | 2282 | &setdebuglist, &showdebuglist); |
d318976c | 2283 | |
6fc1c773 YQ |
2284 | add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class, |
2285 | &remote_timeout, _("\ | |
c0d88b1b AC |
2286 | Set timeout limit to wait for target to respond."), _("\ |
2287 | Show timeout limit to wait for target to respond."), _("\ | |
d318976c | 2288 | This value is used to set the time limit for gdb to wait for a response\n\ |
c0d88b1b | 2289 | from the target."), |
6fc1c773 YQ |
2290 | NULL, |
2291 | show_remote_timeout, | |
2292 | &setlist, &showlist); | |
d318976c | 2293 | |
0743fc83 TT |
2294 | add_basic_prefix_cmd ("debug", no_class, |
2295 | _("Generic command for setting gdb debugging flags."), | |
2296 | &setdebuglist, "set debug ", 0, &setlist); | |
d318976c | 2297 | |
0743fc83 TT |
2298 | add_show_prefix_cmd ("debug", no_class, |
2299 | _("Generic command for showing gdb debugging flags."), | |
2300 | &showdebuglist, "show debug ", 0, &showlist); | |
d318976c | 2301 | |
be47f9e8 | 2302 | c = add_com ("shell", class_support, shell_command, _("\ |
1bedd215 AC |
2303 | Execute the rest of the line as a shell command.\n\ |
2304 | With no arguments, run an inferior shell.")); | |
5ba2abeb | 2305 | set_cmd_completer (c, filename_completer); |
d318976c | 2306 | |
d563b953 PW |
2307 | add_com_alias ("!", "shell", class_support, 0); |
2308 | ||
1bedd215 AC |
2309 | c = add_com ("edit", class_files, edit_command, _("\ |
2310 | Edit specified file or function.\n\ | |
0378c332 | 2311 | With no argument, edits file containing most recent line listed.\n\ |
0378c332 FN |
2312 | Editing targets can be specified in these ways:\n\ |
2313 | FILE:LINENUM, to edit at that line in that file,\n\ | |
2314 | FUNCTION, to edit at the beginning of that function,\n\ | |
2315 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
2316 | *ADDRESS, to edit at the line containing that address.\n\ | |
1bedd215 | 2317 | Uses EDITOR environment variable contents as editor (or ex as default).")); |
0378c332 FN |
2318 | |
2319 | c->completer = location_completer; | |
2320 | ||
947d3946 PW |
2321 | c = add_com ("pipe", class_support, pipe_command, _("\ |
2322 | Send the output of a gdb command to a shell command.\n\ | |
2323 | Usage: | [COMMAND] | SHELL_COMMAND\n\ | |
2324 | Usage: | -d DELIM COMMAND DELIM SHELL_COMMAND\n\ | |
2325 | Usage: pipe [COMMAND] | SHELL_COMMAND\n\ | |
2326 | Usage: pipe -d DELIM COMMAND DELIM SHELL_COMMAND\n\ | |
2327 | \n\ | |
2328 | Executes COMMAND and sends its output to SHELL_COMMAND.\n\ | |
2329 | \n\ | |
2330 | The -d option indicates to use the string DELIM to separate COMMAND\n\ | |
2331 | from SHELL_COMMAND, in alternative to |. This is useful in\n\ | |
2332 | case COMMAND contains a | character.\n\ | |
2333 | \n\ | |
2334 | With no COMMAND, repeat the last executed command\n\ | |
2335 | and send its output to SHELL_COMMAND.")); | |
5f4ba3e7 | 2336 | set_cmd_completer_handle_brkchars (c, pipe_command_completer); |
947d3946 PW |
2337 | add_com_alias ("|", "pipe", class_support, 0); |
2338 | ||
1bedd215 AC |
2339 | add_com ("list", class_files, list_command, _("\ |
2340 | List specified function or line.\n\ | |
0378c332 FN |
2341 | With no argument, lists ten more lines after or around previous listing.\n\ |
2342 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ | |
2343 | One argument specifies a line, and ten lines are listed around that line.\n\ | |
2344 | Two arguments with comma between specify starting and ending lines to list.\n\ | |
0378c332 FN |
2345 | Lines can be specified in these ways:\n\ |
2346 | LINENUM, to list around that line in current file,\n\ | |
2347 | FILE:LINENUM, to list around that line in that file,\n\ | |
2348 | FUNCTION, to list around beginning of that function,\n\ | |
2349 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
2350 | *ADDRESS, to list around the line containing that address.\n\ | |
4fdd372d AB |
2351 | With two args, if one is empty, it stands for ten lines away from\n\ |
2352 | the other arg.\n\ | |
2353 | \n\ | |
2354 | By default, when a single location is given, display ten lines.\n\ | |
2355 | This can be changed using \"set listsize\", and the current value\n\ | |
2356 | can be shown using \"show listsize\".")); | |
0378c332 | 2357 | |
4f45d445 | 2358 | add_com_alias ("l", "list", class_files, 1); |
0378c332 FN |
2359 | |
2360 | if (dbx_commands) | |
2361 | add_com_alias ("file", "list", class_files, 1); | |
2362 | ||
1bedd215 AC |
2363 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ |
2364 | Disassemble a specified section of memory.\n\ | |
83c31e7d | 2365 | Default is the function surrounding the pc of the selected frame.\n\ |
6ff0ba5f | 2366 | \n\ |
d14508fe | 2367 | With a /m modifier, source lines are included (if available).\n\ |
6ff0ba5f DE |
2368 | This view is \"source centric\": the output is in source line order,\n\ |
2369 | regardless of any optimization that is present. Only the main source file\n\ | |
2370 | is displayed, not those of, e.g., any inlined functions.\n\ | |
2371 | This modifier hasn't proved useful in practice and is deprecated\n\ | |
2372 | in favor of /s.\n\ | |
2373 | \n\ | |
2374 | With a /s modifier, source lines are included (if available).\n\ | |
2375 | This differs from /m in two important respects:\n\ | |
2376 | - the output is still in pc address order, and\n\ | |
2377 | - file names and contents for all relevant source files are displayed.\n\ | |
2378 | \n\ | |
e6158f16 | 2379 | With a /r modifier, raw instructions in hex are included.\n\ |
6ff0ba5f | 2380 | \n\ |
83c31e7d | 2381 | With a single argument, the function surrounding that address is dumped.\n\ |
53a71c06 | 2382 | Two arguments (separated by a comma) are taken as a range of memory to dump,\n\ |
7e1e0340 DE |
2383 | in the form of \"start,end\", or \"start,+length\".\n\ |
2384 | \n\ | |
2385 | Note that the address is interpreted as an expression, not as a location\n\ | |
2386 | like in the \"break\" command.\n\ | |
2387 | So, for example, if you want to disassemble function bar in file foo.c\n\ | |
2388 | you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\".")); | |
83c31e7d | 2389 | set_cmd_completer (c, location_completer); |
0378c332 | 2390 | |
1bedd215 AC |
2391 | c = add_com ("make", class_support, make_command, _("\ |
2392 | Run the ``make'' program using the rest of the line as arguments.")); | |
5ba2abeb | 2393 | set_cmd_completer (c, filename_completer); |
1a966eab | 2394 | add_cmd ("user", no_class, show_user, _("\ |
ed3ef339 | 2395 | Show definitions of non-python/scheme user defined commands.\n\ |
d318976c | 2396 | Argument is the name of the user defined command.\n\ |
1a966eab | 2397 | With no argument, show definitions of all user defined commands."), &showlist); |
66d8c862 | 2398 | add_com ("apropos", class_support, apropos_command, _("\ |
590042fc | 2399 | Search for commands matching a REGEXP.\n\ |
66d8c862 PW |
2400 | Usage: apropos [-v] REGEXP\n\ |
2401 | Flag -v indicates to produce a verbose output, showing full documentation\n\ | |
2402 | of the matching commands.")); | |
20f01a46 | 2403 | |
883b9c6c | 2404 | add_setshow_uinteger_cmd ("max-user-call-depth", no_class, |
c0d88b1b | 2405 | &max_user_call_depth, _("\ |
ed3ef339 DE |
2406 | Set the max call depth for non-python/scheme user-defined commands."), _("\ |
2407 | Show the max call depth for non-python/scheme user-defined commands."), NULL, | |
883b9c6c YQ |
2408 | NULL, |
2409 | show_max_user_call_depth, | |
2410 | &setlist, &showlist); | |
16026cd7 AS |
2411 | |
2412 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ | |
2413 | Set tracing of GDB CLI commands."), _("\ | |
2414 | Show state of GDB CLI command tracing."), _("\ | |
2415 | When 'on', each command is displayed as it is executed."), | |
2416 | NULL, | |
2417 | NULL, | |
2418 | &setlist, &showlist); | |
5a56e9c5 DE |
2419 | |
2420 | c = add_com ("alias", class_support, alias_command, _("\ | |
2421 | Define a new command that is an alias of an existing command.\n\ | |
2422 | Usage: alias [-a] [--] ALIAS = COMMAND\n\ | |
2423 | ALIAS is the name of the alias command to create.\n\ | |
2424 | COMMAND is the command being aliased to.\n\ | |
2425 | If \"-a\" is specified, the command is an abbreviation,\n\ | |
2426 | and will not appear in help command list output.\n\ | |
2427 | \n\ | |
2428 | Examples:\n\ | |
2429 | Make \"spe\" an alias of \"set print elements\":\n\ | |
2430 | alias spe = set print elements\n\ | |
2431 | Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\ | |
2432 | alias -a set print elms = set print elements")); | |
43e4916f | 2433 | |
b777eb6d | 2434 | const char *source_help_text = xstrprintf (_("\ |
43e4916f TT |
2435 | Read commands from a file named FILE.\n\ |
2436 | \n\ | |
2437 | Usage: source [-s] [-v] FILE\n\ | |
2438 | -s: search for the script in the source search path,\n\ | |
2439 | even if FILE contains directories.\n\ | |
2440 | -v: each command in FILE is echoed as it is executed.\n\ | |
2441 | \n\ | |
2442 | Note that the file \"%s\" is read automatically in this way\n\ | |
b777eb6d | 2443 | when GDB is started."), GDBINIT); |
43e4916f TT |
2444 | c = add_cmd ("source", class_support, source_command, |
2445 | source_help_text, &cmdlist); | |
2446 | set_cmd_completer (c, filename_completer); | |
2447 | } |