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d318976c | 1 | /* GDB CLI commands. |
8926118c | 2 | |
61baf725 | 3 | Copyright (C) 2000-2017 Free Software Foundation, Inc. |
d318976c FN |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
d318976c FN |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
d318976c FN |
19 | |
20 | #include "defs.h" | |
13274fc3 | 21 | #include "arch-utils.h" |
dbda9972 AC |
22 | #include "readline/readline.h" |
23 | #include "readline/tilde.h" | |
d318976c | 24 | #include "completer.h" |
ebcd3b23 MS |
25 | #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */ |
26 | #include "gdb_wait.h" /* For shell escape implementation. */ | |
27 | #include "gdb_regex.h" /* Used by apropos_command. */ | |
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" |
614c279d | 39 | #include "filestuff.h" |
f00aae0f | 40 | #include "location.h" |
d318976c | 41 | |
d318976c | 42 | #include "ui-out.h" |
d318976c FN |
43 | |
44 | #include "top.h" | |
45 | #include "cli/cli-decode.h" | |
46 | #include "cli/cli-script.h" | |
47 | #include "cli/cli-setshow.h" | |
48 | #include "cli/cli-cmds.h" | |
529480d0 | 49 | #include "cli/cli-utils.h" |
d318976c | 50 | |
6dddc817 | 51 | #include "extension.h" |
973817a3 | 52 | |
6a83354a | 53 | #ifdef TUI |
ebcd3b23 | 54 | #include "tui/tui.h" /* For tui_active et.al. */ |
6a83354a AC |
55 | #endif |
56 | ||
4b505b12 | 57 | #include <fcntl.h> |
325fac50 | 58 | #include <algorithm> |
a97e29d2 | 59 | #include <string> |
4b505b12 | 60 | |
0378c332 | 61 | /* Prototypes for local command functions */ |
d318976c FN |
62 | |
63 | static void complete_command (char *, int); | |
64 | ||
65 | static void echo_command (char *, int); | |
66 | ||
67 | static void pwd_command (char *, int); | |
68 | ||
69 | static void show_version (char *, int); | |
70 | ||
d318976c FN |
71 | static void help_command (char *, int); |
72 | ||
73 | static void show_command (char *, int); | |
74 | ||
75 | static void info_command (char *, int); | |
76 | ||
77 | static void show_debug (char *, int); | |
78 | ||
79 | static void set_debug (char *, int); | |
80 | ||
81 | static void show_user (char *, int); | |
82 | ||
83 | static void make_command (char *, int); | |
84 | ||
be47f9e8 | 85 | static void shell_escape (const char *, int); |
d318976c | 86 | |
0378c332 FN |
87 | static void edit_command (char *, int); |
88 | ||
89 | static void list_command (char *, int); | |
90 | ||
0378c332 FN |
91 | /* Prototypes for local utility functions */ |
92 | ||
93 | static void ambiguous_line_spec (struct symtabs_and_lines *); | |
f8eba3c6 TT |
94 | |
95 | static void filter_sals (struct symtabs_and_lines *); | |
96 | ||
d318976c | 97 | \f |
20f01a46 | 98 | /* Limit the call depth of user-defined commands */ |
883b9c6c | 99 | unsigned int max_user_call_depth; |
20f01a46 | 100 | |
d318976c FN |
101 | /* Define all cmd_list_elements. */ |
102 | ||
103 | /* Chain containing all defined commands. */ | |
104 | ||
105 | struct cmd_list_element *cmdlist; | |
106 | ||
107 | /* Chain containing all defined info subcommands. */ | |
108 | ||
109 | struct cmd_list_element *infolist; | |
110 | ||
ebcd3b23 | 111 | /* Chain containing all defined enable subcommands. */ |
d318976c FN |
112 | |
113 | struct cmd_list_element *enablelist; | |
114 | ||
ebcd3b23 | 115 | /* Chain containing all defined disable subcommands. */ |
d318976c FN |
116 | |
117 | struct cmd_list_element *disablelist; | |
118 | ||
ebcd3b23 | 119 | /* Chain containing all defined stop subcommands. */ |
d318976c FN |
120 | |
121 | struct cmd_list_element *stoplist; | |
122 | ||
ebcd3b23 | 123 | /* Chain containing all defined delete subcommands. */ |
d318976c FN |
124 | |
125 | struct cmd_list_element *deletelist; | |
126 | ||
ebcd3b23 | 127 | /* Chain containing all defined detach subcommands. */ |
f73adfeb AS |
128 | |
129 | struct cmd_list_element *detachlist; | |
130 | ||
ebcd3b23 | 131 | /* Chain containing all defined kill subcommands. */ |
2277426b PA |
132 | |
133 | struct cmd_list_element *killlist; | |
134 | ||
d318976c FN |
135 | /* Chain containing all defined set subcommands */ |
136 | ||
137 | struct cmd_list_element *setlist; | |
138 | ||
139 | /* Chain containing all defined unset subcommands */ | |
140 | ||
141 | struct cmd_list_element *unsetlist; | |
142 | ||
143 | /* Chain containing all defined show subcommands. */ | |
144 | ||
145 | struct cmd_list_element *showlist; | |
146 | ||
147 | /* Chain containing all defined \"set history\". */ | |
148 | ||
149 | struct cmd_list_element *sethistlist; | |
150 | ||
151 | /* Chain containing all defined \"show history\". */ | |
152 | ||
153 | struct cmd_list_element *showhistlist; | |
154 | ||
155 | /* Chain containing all defined \"unset history\". */ | |
156 | ||
157 | struct cmd_list_element *unsethistlist; | |
158 | ||
ebcd3b23 | 159 | /* Chain containing all defined maintenance subcommands. */ |
d318976c FN |
160 | |
161 | struct cmd_list_element *maintenancelist; | |
162 | ||
ebcd3b23 | 163 | /* Chain containing all defined "maintenance info" subcommands. */ |
d318976c FN |
164 | |
165 | struct cmd_list_element *maintenanceinfolist; | |
166 | ||
ebcd3b23 | 167 | /* Chain containing all defined "maintenance print" subcommands. */ |
d318976c FN |
168 | |
169 | struct cmd_list_element *maintenanceprintlist; | |
170 | ||
171 | struct cmd_list_element *setprintlist; | |
172 | ||
173 | struct cmd_list_element *showprintlist; | |
174 | ||
175 | struct cmd_list_element *setdebuglist; | |
176 | ||
177 | struct cmd_list_element *showdebuglist; | |
178 | ||
179 | struct cmd_list_element *setchecklist; | |
180 | ||
181 | struct cmd_list_element *showchecklist; | |
16026cd7 AS |
182 | |
183 | /* Command tracing state. */ | |
184 | ||
185 | int source_verbose = 0; | |
186 | int trace_commands = 0; | |
d318976c | 187 | \f |
973817a3 JB |
188 | /* 'script-extension' option support. */ |
189 | ||
190 | static const char script_ext_off[] = "off"; | |
191 | static const char script_ext_soft[] = "soft"; | |
192 | static const char script_ext_strict[] = "strict"; | |
193 | ||
40478521 | 194 | static const char *const script_ext_enums[] = { |
973817a3 JB |
195 | script_ext_off, |
196 | script_ext_soft, | |
197 | script_ext_strict, | |
198 | NULL | |
199 | }; | |
200 | ||
201 | static const char *script_ext_mode = script_ext_soft; | |
202 | \f | |
d318976c | 203 | /* Utility used everywhere when at least one argument is needed and |
ebcd3b23 | 204 | none is supplied. */ |
d318976c FN |
205 | |
206 | void | |
5b10184c | 207 | error_no_arg (const char *why) |
d318976c | 208 | { |
8a3fe4f8 | 209 | error (_("Argument required (%s)."), why); |
d318976c FN |
210 | } |
211 | ||
212 | /* The "info" command is defined as a prefix, with allow_unknown = 0. | |
ebcd3b23 MS |
213 | Therefore, its own definition is called only for "info" with no |
214 | args. */ | |
d318976c | 215 | |
d318976c FN |
216 | static void |
217 | info_command (char *arg, int from_tty) | |
218 | { | |
9a2b4c1b MS |
219 | printf_unfiltered (_("\"info\" must be followed by " |
220 | "the name of an info command.\n")); | |
635c7e8a | 221 | help_list (infolist, "info ", all_commands, gdb_stdout); |
d318976c FN |
222 | } |
223 | ||
224 | /* The "show" command with no arguments shows all the settings. */ | |
225 | ||
d318976c FN |
226 | static void |
227 | show_command (char *arg, int from_tty) | |
228 | { | |
229 | cmd_show_list (showlist, from_tty, ""); | |
230 | } | |
231 | \f | |
232 | /* Provide documentation on command or list given by COMMAND. FROM_TTY | |
233 | is ignored. */ | |
234 | ||
d318976c FN |
235 | static void |
236 | help_command (char *command, int from_tty) | |
237 | { | |
238 | help_cmd (command, gdb_stdout); | |
239 | } | |
240 | \f | |
eb3ff9a5 | 241 | |
ef0b411a GB |
242 | /* Note: The "complete" command is used by Emacs to implement completion. |
243 | [Is that why this function writes output with *_unfiltered?] */ | |
d318976c | 244 | |
d318976c | 245 | static void |
a121b7c1 | 246 | complete_command (char *arg_entry, int from_tty) |
d318976c | 247 | { |
a121b7c1 | 248 | const char *arg = arg_entry; |
d318976c FN |
249 | |
250 | dont_repeat (); | |
251 | ||
ef0b411a GB |
252 | if (max_completions == 0) |
253 | { | |
254 | /* Only print this for non-mi frontends. An MI frontend may not | |
255 | be able to handle this. */ | |
112e8700 | 256 | if (!current_uiout->is_mi_like_p ()) |
ef0b411a GB |
257 | { |
258 | printf_unfiltered (_("max-completions is zero," | |
259 | " completion is disabled.\n")); | |
260 | } | |
261 | return; | |
262 | } | |
263 | ||
d318976c FN |
264 | if (arg == NULL) |
265 | arg = ""; | |
d9b52655 | 266 | |
6a2c1b87 | 267 | completion_tracker tracker_handle_brkchars; |
eb3ff9a5 | 268 | completion_tracker tracker_handle_completions; |
c6756f62 | 269 | completion_tracker *tracker; |
83d31a92 | 270 | |
6a2c1b87 PA |
271 | int quote_char = '\0'; |
272 | const char *word; | |
273 | ||
eb3ff9a5 | 274 | TRY |
d318976c | 275 | { |
6a2c1b87 PA |
276 | word = completion_find_completion_word (tracker_handle_brkchars, |
277 | arg, "e_char); | |
278 | ||
c6756f62 PA |
279 | /* Completers that provide a custom word point in the |
280 | handle_brkchars phase also compute their completions then. | |
281 | Completers that leave the completion word handling to readline | |
282 | must be called twice. */ | |
283 | if (tracker_handle_brkchars.use_custom_word_point ()) | |
284 | tracker = &tracker_handle_brkchars; | |
285 | else | |
286 | { | |
287 | complete_line (tracker_handle_completions, word, arg, strlen (arg)); | |
288 | tracker = &tracker_handle_completions; | |
289 | } | |
eb3ff9a5 PA |
290 | } |
291 | CATCH (ex, RETURN_MASK_ALL) | |
292 | { | |
293 | return; | |
294 | } | |
295 | ||
6a2c1b87 | 296 | std::string arg_prefix (arg, word - arg); |
83d31a92 | 297 | |
eb3ff9a5 | 298 | completion_result result |
c6756f62 | 299 | = tracker->build_completion_result (word, word - arg, strlen (arg)); |
83d31a92 | 300 | |
eb3ff9a5 PA |
301 | if (result.number_matches != 0) |
302 | { | |
303 | if (result.number_matches == 1) | |
304 | printf_unfiltered ("%s%s\n", arg_prefix.c_str (), result.match_list[0]); | |
305 | else | |
83d31a92 | 306 | { |
eb3ff9a5 PA |
307 | result.sort_match_list (); |
308 | ||
309 | for (size_t i = 0; i < result.number_matches; i++) | |
83d31a92 | 310 | { |
eb3ff9a5 PA |
311 | printf_unfiltered ("%s%s", |
312 | arg_prefix.c_str (), | |
313 | result.match_list[i + 1]); | |
6a2c1b87 PA |
314 | if (quote_char) |
315 | printf_unfiltered ("%c", quote_char); | |
eb3ff9a5 | 316 | printf_unfiltered ("\n"); |
83d31a92 | 317 | } |
83d31a92 TT |
318 | } |
319 | ||
eb3ff9a5 | 320 | if (result.number_matches == max_completions) |
ef0b411a | 321 | { |
6a2c1b87 | 322 | /* ARG_PREFIX and WORD are included in the output so that emacs |
ef0b411a GB |
323 | will include the message in the output. */ |
324 | printf_unfiltered (_("%s%s %s\n"), | |
6a2c1b87 | 325 | arg_prefix.c_str (), word, |
ef0b411a GB |
326 | get_max_completions_reached_message ()); |
327 | } | |
d318976c FN |
328 | } |
329 | } | |
330 | ||
bbaca940 AC |
331 | int |
332 | is_complete_command (struct cmd_list_element *c) | |
d318976c | 333 | { |
bbaca940 | 334 | return cmd_cfunc_eq (c, complete_command); |
d318976c FN |
335 | } |
336 | ||
d318976c FN |
337 | static void |
338 | show_version (char *args, int from_tty) | |
339 | { | |
d318976c FN |
340 | print_gdb_version (gdb_stdout); |
341 | printf_filtered ("\n"); | |
d318976c FN |
342 | } |
343 | ||
6eaaf48b EZ |
344 | static void |
345 | show_configuration (char *args, int from_tty) | |
346 | { | |
347 | print_gdb_configuration (gdb_stdout); | |
348 | } | |
349 | ||
d318976c FN |
350 | /* Handle the quit command. */ |
351 | ||
352 | void | |
353 | quit_command (char *args, int from_tty) | |
354 | { | |
36cf1806 TT |
355 | int exit_code = 0; |
356 | ||
357 | /* An optional expression may be used to cause gdb to terminate with | |
358 | the value of that expression. */ | |
359 | if (args) | |
360 | { | |
361 | struct value *val = parse_and_eval (args); | |
362 | ||
363 | exit_code = (int) value_as_long (val); | |
364 | } | |
365 | ||
d318976c | 366 | if (!quit_confirm ()) |
8a3fe4f8 | 367 | error (_("Not confirmed.")); |
d5551862 | 368 | |
2f9d54cf | 369 | query_if_trace_running (from_tty); |
d5551862 | 370 | |
36cf1806 | 371 | quit_force (args ? &exit_code : NULL, from_tty); |
d318976c FN |
372 | } |
373 | ||
d318976c FN |
374 | static void |
375 | pwd_command (char *args, int from_tty) | |
376 | { | |
377 | if (args) | |
8a3fe4f8 | 378 | error (_("The \"pwd\" command does not take an argument: %s"), args); |
bf1d7d9c JB |
379 | if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf))) |
380 | error (_("Error finding name of working directory: %s"), | |
381 | safe_strerror (errno)); | |
d318976c | 382 | |
6314a349 | 383 | if (strcmp (gdb_dirbuf, current_directory) != 0) |
a3f17187 | 384 | printf_unfiltered (_("Working directory %s\n (canonically %s).\n"), |
d318976c FN |
385 | current_directory, gdb_dirbuf); |
386 | else | |
a3f17187 | 387 | printf_unfiltered (_("Working directory %s.\n"), current_directory); |
d318976c FN |
388 | } |
389 | ||
390 | void | |
391 | cd_command (char *dir, int from_tty) | |
392 | { | |
393 | int len; | |
394 | /* Found something other than leading repetitions of "/..". */ | |
395 | int found_real_path; | |
396 | char *p; | |
5b3fca71 | 397 | struct cleanup *cleanup; |
d318976c FN |
398 | |
399 | /* If the new directory is absolute, repeat is a no-op; if relative, | |
400 | repeat might be useful but is more likely to be a mistake. */ | |
401 | dont_repeat (); | |
402 | ||
a121b7c1 | 403 | dir = tilde_expand (dir != NULL ? dir : "~"); |
5b3fca71 | 404 | cleanup = make_cleanup (xfree, dir); |
d318976c FN |
405 | |
406 | if (chdir (dir) < 0) | |
407 | perror_with_name (dir); | |
408 | ||
c3690141 | 409 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
d318976c FN |
410 | /* There's too much mess with DOSish names like "d:", "d:.", |
411 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, | |
412 | simply get the canonicalized name of the current directory. */ | |
413 | dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); | |
414 | #endif | |
415 | ||
416 | len = strlen (dir); | |
fe4e3eb8 | 417 | if (IS_DIR_SEPARATOR (dir[len - 1])) |
d318976c FN |
418 | { |
419 | /* Remove the trailing slash unless this is a root directory | |
420 | (including a drive letter on non-Unix systems). */ | |
421 | if (!(len == 1) /* "/" */ | |
c3690141 | 422 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
fe4e3eb8 | 423 | && !(len == 3 && dir[1] == ':') /* "d:/" */ |
d318976c FN |
424 | #endif |
425 | ) | |
426 | len--; | |
427 | } | |
428 | ||
429 | dir = savestring (dir, len); | |
fe4e3eb8 | 430 | if (IS_ABSOLUTE_PATH (dir)) |
d318976c FN |
431 | current_directory = dir; |
432 | else | |
433 | { | |
fe4e3eb8 | 434 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) |
1754f103 | 435 | current_directory = concat (current_directory, dir, (char *)NULL); |
d318976c | 436 | else |
1754f103 MK |
437 | current_directory = concat (current_directory, SLASH_STRING, |
438 | dir, (char *)NULL); | |
b8c9b27d | 439 | xfree (dir); |
d318976c FN |
440 | } |
441 | ||
442 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ | |
443 | ||
444 | found_real_path = 0; | |
445 | for (p = current_directory; *p;) | |
446 | { | |
fe4e3eb8 EZ |
447 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' |
448 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) | |
b2a3b509 | 449 | memmove (p, p + 2, strlen (p + 2) + 1); |
fe4e3eb8 EZ |
450 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' |
451 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) | |
d318976c FN |
452 | { |
453 | if (found_real_path) | |
454 | { | |
455 | /* Search backwards for the directory just before the "/.." | |
456 | and obliterate it and the "/..". */ | |
457 | char *q = p; | |
cdb27c12 | 458 | |
fe4e3eb8 | 459 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) |
d318976c FN |
460 | --q; |
461 | ||
462 | if (q == current_directory) | |
463 | /* current_directory is | |
464 | a relative pathname ("can't happen"--leave it alone). */ | |
465 | ++p; | |
466 | else | |
467 | { | |
b2a3b509 | 468 | memmove (q - 1, p + 3, strlen (p + 3) + 1); |
d318976c FN |
469 | p = q - 1; |
470 | } | |
471 | } | |
472 | else | |
ebcd3b23 MS |
473 | /* We are dealing with leading repetitions of "/..", for |
474 | example "/../..", which is the Mach super-root. */ | |
d318976c FN |
475 | p += 3; |
476 | } | |
477 | else | |
478 | { | |
479 | found_real_path = 1; | |
480 | ++p; | |
481 | } | |
482 | } | |
483 | ||
484 | forget_cached_source_info (); | |
485 | ||
486 | if (from_tty) | |
487 | pwd_command ((char *) 0, 1); | |
5b3fca71 TT |
488 | |
489 | do_cleanups (cleanup); | |
d318976c FN |
490 | } |
491 | \f | |
973817a3 JB |
492 | /* Show the current value of the 'script-extension' option. */ |
493 | ||
494 | static void | |
495 | show_script_ext_mode (struct ui_file *file, int from_tty, | |
496 | struct cmd_list_element *c, const char *value) | |
d318976c | 497 | { |
9a2b4c1b MS |
498 | fprintf_filtered (file, |
499 | _("Script filename extension recognition is \"%s\".\n"), | |
973817a3 JB |
500 | value); |
501 | } | |
502 | ||
3f7b2faa DE |
503 | /* Try to open SCRIPT_FILE. |
504 | If successful, the full path name is stored in *FULL_PATHP, | |
505 | the stream is stored in *STREAMP, and return 1. | |
506 | The caller is responsible for freeing *FULL_PATHP. | |
507 | If not successful, return 0; errno is set for the last file | |
508 | we tried to open. | |
509 | ||
510 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
f5b95b50 | 511 | search for it in the source search path. */ |
3f7b2faa | 512 | |
8a1ea21f | 513 | int |
3f7b2faa DE |
514 | find_and_open_script (const char *script_file, int search_path, |
515 | FILE **streamp, char **full_pathp) | |
973817a3 | 516 | { |
3f7b2faa | 517 | char *file; |
4b505b12 | 518 | int fd; |
973817a3 | 519 | struct cleanup *old_cleanups; |
492c0ab7 | 520 | int search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH; |
d318976c | 521 | |
3f7b2faa | 522 | file = tilde_expand (script_file); |
b8c9b27d | 523 | old_cleanups = make_cleanup (xfree, file); |
d318976c | 524 | |
3f7b2faa DE |
525 | if (search_path) |
526 | search_flags |= OPF_SEARCH_IN_PATH; | |
4b505b12 | 527 | |
3f7b2faa DE |
528 | /* Search for and open 'file' on the search path used for source |
529 | files. Put the full location in *FULL_PATHP. */ | |
530 | fd = openp (source_path, search_flags, | |
531 | file, O_RDONLY, full_pathp); | |
4b505b12 AS |
532 | |
533 | if (fd == -1) | |
d318976c | 534 | { |
3f7b2faa DE |
535 | int save_errno = errno; |
536 | do_cleanups (old_cleanups); | |
537 | errno = save_errno; | |
538 | return 0; | |
d318976c FN |
539 | } |
540 | ||
3f7b2faa | 541 | do_cleanups (old_cleanups); |
973817a3 | 542 | |
3f7b2faa | 543 | *streamp = fdopen (fd, FOPEN_RT); |
77a35dd8 JK |
544 | if (*streamp == NULL) |
545 | { | |
546 | int save_errno = errno; | |
547 | ||
548 | close (fd); | |
549 | if (full_pathp) | |
550 | xfree (*full_pathp); | |
551 | errno = save_errno; | |
552 | return 0; | |
553 | } | |
554 | ||
973817a3 JB |
555 | return 1; |
556 | } | |
557 | ||
1a70ae97 DE |
558 | /* Load script FILE, which has already been opened as STREAM. |
559 | FILE_TO_OPEN is the form of FILE to use if one needs to open the file. | |
560 | This is provided as FILE may have been found via the source search path. | |
561 | An important thing to note here is that FILE may be a symlink to a file | |
562 | with a different or non-existing suffix, and thus one cannot infer the | |
563 | extension language from FILE_TO_OPEN. */ | |
973817a3 | 564 | |
3f7b2faa | 565 | static void |
1a70ae97 DE |
566 | source_script_from_stream (FILE *stream, const char *file, |
567 | const char *file_to_open) | |
3f7b2faa | 568 | { |
6dddc817 | 569 | if (script_ext_mode != script_ext_off) |
973817a3 | 570 | { |
6dddc817 DE |
571 | const struct extension_language_defn *extlang |
572 | = get_ext_lang_of_file (file); | |
573 | ||
574 | if (extlang != NULL) | |
973817a3 | 575 | { |
6dddc817 DE |
576 | if (ext_lang_present_p (extlang)) |
577 | { | |
578 | script_sourcer_func *sourcer | |
579 | = ext_lang_script_sourcer (extlang); | |
580 | ||
581 | gdb_assert (sourcer != NULL); | |
1a70ae97 | 582 | sourcer (extlang, stream, file_to_open); |
6dddc817 DE |
583 | return; |
584 | } | |
585 | else if (script_ext_mode == script_ext_soft) | |
586 | { | |
587 | /* Assume the file is a gdb script. | |
588 | This is handled below. */ | |
589 | } | |
590 | else | |
591 | throw_ext_lang_unsupported (extlang); | |
973817a3 JB |
592 | } |
593 | } | |
6dddc817 DE |
594 | |
595 | script_from_file (stream, file); | |
3f7b2faa | 596 | } |
d318976c | 597 | |
3f7b2faa DE |
598 | /* Worker to perform the "source" command. |
599 | Load script FILE. | |
600 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, | |
601 | search for it in the source search path. */ | |
602 | ||
603 | static void | |
604 | source_script_with_search (const char *file, int from_tty, int search_path) | |
605 | { | |
606 | FILE *stream; | |
607 | char *full_path; | |
608 | struct cleanup *old_cleanups; | |
609 | ||
610 | if (file == NULL || *file == 0) | |
611 | error (_("source command requires file name of file to source.")); | |
612 | ||
613 | if (!find_and_open_script (file, search_path, &stream, &full_path)) | |
614 | { | |
d234ef5c | 615 | /* The script wasn't found, or was otherwise inaccessible. |
ebcd3b23 MS |
616 | If the source command was invoked interactively, throw an |
617 | error. Otherwise (e.g. if it was invoked by a script), | |
7c647d61 | 618 | just emit a warning, rather than cause an error. */ |
3f7b2faa DE |
619 | if (from_tty) |
620 | perror_with_name (file); | |
621 | else | |
7c647d61 JB |
622 | { |
623 | perror_warning_with_name (file); | |
624 | return; | |
625 | } | |
3f7b2faa DE |
626 | } |
627 | ||
628 | old_cleanups = make_cleanup (xfree, full_path); | |
86eb7e95 | 629 | make_cleanup_fclose (stream); |
d234ef5c DE |
630 | /* The python support reopens the file, so we need to pass full_path here |
631 | in case the file was found on the search path. It's useful to do this | |
632 | anyway so that error messages show the actual file used. But only do | |
633 | this if we (may have) used search_path, as printing the full path in | |
634 | errors for the non-search case can be more noise than signal. */ | |
1a70ae97 | 635 | source_script_from_stream (stream, file, search_path ? full_path : file); |
d318976c FN |
636 | do_cleanups (old_cleanups); |
637 | } | |
638 | ||
3f7b2faa DE |
639 | /* Wrapper around source_script_with_search to export it to main.c |
640 | for use in loading .gdbinit scripts. */ | |
641 | ||
642 | void | |
50dd9793 | 643 | source_script (const char *file, int from_tty) |
3f7b2faa DE |
644 | { |
645 | source_script_with_search (file, from_tty, 0); | |
646 | } | |
647 | ||
16026cd7 AS |
648 | /* Return the source_verbose global variable to its previous state |
649 | on exit from the source command, by whatever means. */ | |
650 | static void | |
651 | source_verbose_cleanup (void *old_value) | |
652 | { | |
653 | source_verbose = *(int *)old_value; | |
654 | xfree (old_value); | |
655 | } | |
656 | ||
657 | static void | |
658 | source_command (char *args, int from_tty) | |
659 | { | |
660 | struct cleanup *old_cleanups; | |
661 | char *file = args; | |
8d749320 | 662 | int *old_source_verbose = XNEW (int); |
3f7b2faa | 663 | int search_path = 0; |
16026cd7 AS |
664 | |
665 | *old_source_verbose = source_verbose; | |
ebcd3b23 MS |
666 | old_cleanups = make_cleanup (source_verbose_cleanup, |
667 | old_source_verbose); | |
16026cd7 AS |
668 | |
669 | /* -v causes the source command to run in verbose mode. | |
3f7b2faa DE |
670 | -s causes the file to be searched in the source search path, |
671 | even if the file name contains a '/'. | |
16026cd7 AS |
672 | We still have to be able to handle filenames with spaces in a |
673 | backward compatible way, so buildargv is not appropriate. */ | |
674 | ||
675 | if (args) | |
676 | { | |
3f7b2faa | 677 | while (args[0] != '\0') |
16026cd7 | 678 | { |
ebcd3b23 MS |
679 | /* Make sure leading white space does not break the |
680 | comparisons. */ | |
529480d0 | 681 | args = skip_spaces (args); |
3f7b2faa DE |
682 | |
683 | if (args[0] != '-') | |
684 | break; | |
685 | ||
686 | if (args[1] == 'v' && isspace (args[2])) | |
687 | { | |
688 | source_verbose = 1; | |
689 | ||
690 | /* Skip passed -v. */ | |
691 | args = &args[3]; | |
692 | } | |
693 | else if (args[1] == 's' && isspace (args[2])) | |
694 | { | |
695 | search_path = 1; | |
16026cd7 | 696 | |
3f7b2faa DE |
697 | /* Skip passed -s. */ |
698 | args = &args[3]; | |
699 | } | |
700 | else | |
701 | break; | |
16026cd7 | 702 | } |
3f7b2faa | 703 | |
529480d0 | 704 | file = skip_spaces (args); |
16026cd7 AS |
705 | } |
706 | ||
3f7b2faa | 707 | source_script_with_search (file, from_tty, search_path); |
96e39866 DE |
708 | |
709 | do_cleanups (old_cleanups); | |
16026cd7 AS |
710 | } |
711 | ||
712 | ||
d318976c FN |
713 | static void |
714 | echo_command (char *text, int from_tty) | |
715 | { | |
d7561cbb | 716 | const char *p = text; |
d5b5ac79 | 717 | int c; |
d318976c FN |
718 | |
719 | if (text) | |
720 | while ((c = *p++) != '\0') | |
721 | { | |
722 | if (c == '\\') | |
723 | { | |
724 | /* \ at end of argument is used after spaces | |
725 | so they won't be lost. */ | |
726 | if (*p == 0) | |
727 | return; | |
728 | ||
f870a310 | 729 | c = parse_escape (get_current_arch (), &p); |
d318976c FN |
730 | if (c >= 0) |
731 | printf_filtered ("%c", c); | |
732 | } | |
733 | else | |
734 | printf_filtered ("%c", c); | |
735 | } | |
736 | ||
737 | /* Force this output to appear now. */ | |
738 | wrap_here (""); | |
739 | gdb_flush (gdb_stdout); | |
740 | } | |
741 | ||
d318976c | 742 | static void |
be47f9e8 | 743 | shell_escape (const char *arg, int from_tty) |
d318976c | 744 | { |
9b265ec2 MM |
745 | #if defined(CANT_FORK) || \ |
746 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) | |
d318976c FN |
747 | /* If ARG is NULL, they want an inferior shell, but `system' just |
748 | reports if the shell is available when passed a NULL arg. */ | |
749 | int rc = system (arg ? arg : ""); | |
750 | ||
751 | if (!arg) | |
752 | arg = "inferior shell"; | |
753 | ||
754 | if (rc == -1) | |
755 | { | |
756 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, | |
757 | safe_strerror (errno)); | |
758 | gdb_flush (gdb_stderr); | |
759 | } | |
760 | else if (rc) | |
761 | { | |
762 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); | |
763 | gdb_flush (gdb_stderr); | |
764 | } | |
2584159e | 765 | #ifdef GLOBAL_CURDIR |
ebcd3b23 MS |
766 | /* Make sure to return to the directory GDB thinks it is, in case |
767 | the shell command we just ran changed it. */ | |
d318976c FN |
768 | chdir (current_directory); |
769 | #endif | |
770 | #else /* Can fork. */ | |
5be4dfca | 771 | int status, pid; |
d318976c | 772 | |
325ed089 | 773 | if ((pid = vfork ()) == 0) |
d318976c | 774 | { |
9f37bbcc | 775 | const char *p, *user_shell; |
30e94205 | 776 | |
614c279d TT |
777 | close_most_fds (); |
778 | ||
30e94205 DJ |
779 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) |
780 | user_shell = "/bin/sh"; | |
781 | ||
ebcd3b23 | 782 | /* Get the name of the shell for arg0. */ |
9f37bbcc | 783 | p = lbasename (user_shell); |
30e94205 | 784 | |
d318976c | 785 | if (!arg) |
36662fde | 786 | execl (user_shell, p, (char *) 0); |
d318976c | 787 | else |
36662fde | 788 | execl (user_shell, p, "-c", arg, (char *) 0); |
d318976c FN |
789 | |
790 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, | |
791 | safe_strerror (errno)); | |
792 | gdb_flush (gdb_stderr); | |
793 | _exit (0177); | |
794 | } | |
795 | ||
796 | if (pid != -1) | |
5be4dfca | 797 | waitpid (pid, &status, 0); |
d318976c | 798 | else |
8a3fe4f8 | 799 | error (_("Fork failed")); |
d318976c FN |
800 | #endif /* Can fork. */ |
801 | } | |
802 | ||
be47f9e8 PA |
803 | /* Implementation of the "shell" command. */ |
804 | ||
805 | static void | |
806 | shell_command (char *arg, int from_tty) | |
807 | { | |
808 | shell_escape (arg, from_tty); | |
809 | } | |
810 | ||
0378c332 FN |
811 | static void |
812 | edit_command (char *arg, int from_tty) | |
813 | { | |
814 | struct symtabs_and_lines sals; | |
815 | struct symtab_and_line sal; | |
816 | struct symbol *sym; | |
a121b7c1 | 817 | const char *editor; |
0b0865da TT |
818 | char *p; |
819 | const char *fn; | |
0378c332 | 820 | |
d5529a84 | 821 | /* Pull in the current default source line if necessary. */ |
0378c332 | 822 | if (arg == 0) |
53cb0458 FN |
823 | { |
824 | set_default_source_symtab_and_line (); | |
825 | sal = get_current_source_symtab_and_line (); | |
826 | } | |
0378c332 | 827 | |
ebcd3b23 | 828 | /* Bare "edit" edits file with present line. */ |
0378c332 FN |
829 | |
830 | if (arg == 0) | |
831 | { | |
832 | if (sal.symtab == 0) | |
8a3fe4f8 | 833 | error (_("No default source file yet.")); |
0378c332 FN |
834 | sal.line += get_lines_to_list () / 2; |
835 | } | |
836 | else | |
837 | { | |
f00aae0f | 838 | char *arg1; |
0378c332 | 839 | |
f00aae0f | 840 | /* Now should only be one argument -- decode it in SAL. */ |
0378c332 | 841 | arg1 = arg; |
ffc2605c TT |
842 | event_location_up location = string_to_event_location (&arg1, |
843 | current_language); | |
844 | sals = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
845 | NULL, NULL, 0); | |
0378c332 | 846 | |
f8eba3c6 | 847 | filter_sals (&sals); |
d5529a84 TT |
848 | if (! sals.nelts) |
849 | { | |
850 | /* C++ */ | |
851 | return; | |
852 | } | |
853 | if (sals.nelts > 1) | |
854 | { | |
855 | ambiguous_line_spec (&sals); | |
856 | xfree (sals.sals); | |
857 | return; | |
858 | } | |
0378c332 FN |
859 | |
860 | sal = sals.sals[0]; | |
861 | xfree (sals.sals); | |
862 | ||
863 | if (*arg1) | |
8a3fe4f8 | 864 | error (_("Junk at end of line specification.")); |
0378c332 | 865 | |
ebcd3b23 MS |
866 | /* If line was specified by address, first print exactly which |
867 | line, and which file. In this case, sal.symtab == 0 means | |
868 | address is outside of all known source files, not that user | |
869 | failed to give a filename. */ | |
0378c332 FN |
870 | if (*arg == '*') |
871 | { | |
5af949e3 | 872 | struct gdbarch *gdbarch; |
cdb27c12 | 873 | |
0378c332 | 874 | if (sal.symtab == 0) |
8a3fe4f8 | 875 | error (_("No source file for address %s."), |
2b69941d | 876 | paddress (get_current_arch (), sal.pc)); |
5af949e3 | 877 | |
eb822aa6 | 878 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); |
0378c332 FN |
879 | sym = find_pc_function (sal.pc); |
880 | if (sym) | |
5af949e3 UW |
881 | printf_filtered ("%s is in %s (%s:%d).\n", |
882 | paddress (gdbarch, sal.pc), | |
883 | SYMBOL_PRINT_NAME (sym), | |
05cba821 JK |
884 | symtab_to_filename_for_display (sal.symtab), |
885 | sal.line); | |
0378c332 | 886 | else |
5af949e3 UW |
887 | printf_filtered ("%s is at %s:%d.\n", |
888 | paddress (gdbarch, sal.pc), | |
05cba821 JK |
889 | symtab_to_filename_for_display (sal.symtab), |
890 | sal.line); | |
0378c332 FN |
891 | } |
892 | ||
ebcd3b23 MS |
893 | /* If what was given does not imply a symtab, it must be an |
894 | undebuggable symbol which means no source code. */ | |
0378c332 FN |
895 | |
896 | if (sal.symtab == 0) | |
8a3fe4f8 | 897 | error (_("No line number known for %s."), arg); |
0378c332 FN |
898 | } |
899 | ||
900 | if ((editor = (char *) getenv ("EDITOR")) == NULL) | |
901 | editor = "/bin/ex"; | |
a955ca71 | 902 | |
f35a17b5 | 903 | fn = symtab_to_fullname (sal.symtab); |
0378c332 | 904 | |
a955ca71 EZ |
905 | /* Quote the file name, in case it has whitespace or other special |
906 | characters. */ | |
907 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); | |
d5529a84 TT |
908 | shell_escape (p, from_tty); |
909 | xfree (p); | |
0378c332 FN |
910 | } |
911 | ||
912 | static void | |
913 | list_command (char *arg, int from_tty) | |
914 | { | |
915 | struct symtabs_and_lines sals, sals_end; | |
245c7f48 DJ |
916 | struct symtab_and_line sal = { 0 }; |
917 | struct symtab_and_line sal_end = { 0 }; | |
918 | struct symtab_and_line cursal = { 0 }; | |
0378c332 FN |
919 | struct symbol *sym; |
920 | char *arg1; | |
921 | int no_end = 1; | |
922 | int dummy_end = 0; | |
923 | int dummy_beg = 0; | |
924 | int linenum_beg = 0; | |
925 | char *p; | |
926 | ||
ebcd3b23 | 927 | /* Pull in the current default source line if necessary. */ |
a0def019 | 928 | if (arg == NULL || ((arg[0] == '+' || arg[0] == '-') && arg[1] == '\0')) |
53cb0458 FN |
929 | { |
930 | set_default_source_symtab_and_line (); | |
931 | cursal = get_current_source_symtab_and_line (); | |
5166082f PA |
932 | |
933 | /* If this is the first "list" since we've set the current | |
934 | source line, center the listing around that line. */ | |
935 | if (get_first_line_listed () == 0) | |
936 | { | |
937 | int first; | |
938 | ||
325fac50 | 939 | first = std::max (cursal.line - get_lines_to_list () / 2, 1); |
5166082f PA |
940 | |
941 | /* A small special case --- if listing backwards, and we | |
942 | should list only one line, list the preceding line, | |
943 | instead of the exact line we've just shown after e.g., | |
944 | stopping for a breakpoint. */ | |
945 | if (arg != NULL && arg[0] == '-' | |
946 | && get_lines_to_list () == 1 && first > 1) | |
947 | first -= 1; | |
948 | ||
949 | print_source_lines (cursal.symtab, first, | |
950 | first + get_lines_to_list (), 0); | |
5166082f | 951 | } |
0378c332 | 952 | |
1a48ce76 | 953 | /* "l" or "l +" lists next ten lines. */ |
a0def019 | 954 | else if (arg == NULL || arg[0] == '+') |
1a48ce76 AB |
955 | print_source_lines (cursal.symtab, cursal.line, |
956 | cursal.line + get_lines_to_list (), 0); | |
0378c332 | 957 | |
1a48ce76 AB |
958 | /* "l -" lists previous ten lines, the ones before the ten just |
959 | listed. */ | |
a0def019 | 960 | else if (arg[0] == '-') |
3b2464a8 AB |
961 | { |
962 | if (get_first_line_listed () == 1) | |
963 | error (_("Already at the start of %s."), | |
964 | symtab_to_filename_for_display (cursal.symtab)); | |
965 | print_source_lines (cursal.symtab, | |
325fac50 PA |
966 | std::max (get_first_line_listed () |
967 | - get_lines_to_list (), 1), | |
3b2464a8 AB |
968 | get_first_line_listed (), 0); |
969 | } | |
0378c332 | 970 | |
0378c332 FN |
971 | return; |
972 | } | |
973 | ||
974 | /* Now if there is only one argument, decode it in SAL | |
975 | and set NO_END. | |
976 | If there are two arguments, decode them in SAL and SAL_END | |
977 | and clear NO_END; however, if one of the arguments is blank, | |
978 | set DUMMY_BEG or DUMMY_END to record that fact. */ | |
979 | ||
980 | if (!have_full_symbols () && !have_partial_symbols ()) | |
8a3fe4f8 | 981 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
0378c332 FN |
982 | |
983 | arg1 = arg; | |
984 | if (*arg1 == ',') | |
985 | dummy_beg = 1; | |
986 | else | |
987 | { | |
ffc2605c TT |
988 | event_location_up location = string_to_event_location (&arg1, |
989 | current_language); | |
990 | sals = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, | |
991 | NULL, NULL, 0); | |
0378c332 | 992 | |
f8eba3c6 | 993 | filter_sals (&sals); |
0378c332 | 994 | if (!sals.nelts) |
f00aae0f KS |
995 | { |
996 | /* C++ */ | |
f00aae0f KS |
997 | return; |
998 | } | |
0378c332 FN |
999 | if (sals.nelts > 1) |
1000 | { | |
1001 | ambiguous_line_spec (&sals); | |
1002 | xfree (sals.sals); | |
1003 | return; | |
1004 | } | |
1005 | ||
1006 | sal = sals.sals[0]; | |
1007 | xfree (sals.sals); | |
1008 | } | |
1009 | ||
1010 | /* Record whether the BEG arg is all digits. */ | |
1011 | ||
1012 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); | |
1013 | linenum_beg = (p == arg1); | |
1014 | ||
1015 | while (*arg1 == ' ' || *arg1 == '\t') | |
1016 | arg1++; | |
1017 | if (*arg1 == ',') | |
1018 | { | |
1019 | no_end = 0; | |
1020 | arg1++; | |
1021 | while (*arg1 == ' ' || *arg1 == '\t') | |
1022 | arg1++; | |
1023 | if (*arg1 == 0) | |
1024 | dummy_end = 1; | |
1025 | else | |
1026 | { | |
ffc2605c TT |
1027 | event_location_up location |
1028 | = string_to_event_location (&arg1, current_language); | |
0378c332 | 1029 | if (dummy_beg) |
ffc2605c | 1030 | sals_end = decode_line_1 (location.get (), |
c2f4122d | 1031 | DECODE_LINE_LIST_MODE, NULL, NULL, 0); |
0378c332 | 1032 | else |
ffc2605c | 1033 | sals_end = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, |
c2f4122d | 1034 | NULL, sal.symtab, sal.line); |
f00aae0f | 1035 | |
4979d7f0 | 1036 | filter_sals (&sals_end); |
0378c332 | 1037 | if (sals_end.nelts == 0) |
ffc2605c | 1038 | return; |
0378c332 FN |
1039 | if (sals_end.nelts > 1) |
1040 | { | |
1041 | ambiguous_line_spec (&sals_end); | |
1042 | xfree (sals_end.sals); | |
1043 | return; | |
1044 | } | |
1045 | sal_end = sals_end.sals[0]; | |
1046 | xfree (sals_end.sals); | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | if (*arg1) | |
8a3fe4f8 | 1051 | error (_("Junk at end of line specification.")); |
0378c332 FN |
1052 | |
1053 | if (!no_end && !dummy_beg && !dummy_end | |
1054 | && sal.symtab != sal_end.symtab) | |
8a3fe4f8 | 1055 | error (_("Specified start and end are in different files.")); |
0378c332 | 1056 | if (dummy_beg && dummy_end) |
8a3fe4f8 | 1057 | error (_("Two empty args do not say what lines to list.")); |
0378c332 | 1058 | |
ebcd3b23 | 1059 | /* If line was specified by address, |
0378c332 | 1060 | first print exactly which line, and which file. |
ebcd3b23 MS |
1061 | |
1062 | In this case, sal.symtab == 0 means address is outside of all | |
1063 | known source files, not that user failed to give a filename. */ | |
0378c332 FN |
1064 | if (*arg == '*') |
1065 | { | |
5af949e3 | 1066 | struct gdbarch *gdbarch; |
cdb27c12 | 1067 | |
0378c332 | 1068 | if (sal.symtab == 0) |
8a3fe4f8 | 1069 | error (_("No source file for address %s."), |
2b69941d | 1070 | paddress (get_current_arch (), sal.pc)); |
5af949e3 | 1071 | |
eb822aa6 | 1072 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); |
0378c332 FN |
1073 | sym = find_pc_function (sal.pc); |
1074 | if (sym) | |
50ee7535 | 1075 | printf_filtered ("%s is in %s (%s:%d).\n", |
5af949e3 UW |
1076 | paddress (gdbarch, sal.pc), |
1077 | SYMBOL_PRINT_NAME (sym), | |
05cba821 | 1078 | symtab_to_filename_for_display (sal.symtab), sal.line); |
0378c332 | 1079 | else |
5af949e3 UW |
1080 | printf_filtered ("%s is at %s:%d.\n", |
1081 | paddress (gdbarch, sal.pc), | |
05cba821 | 1082 | symtab_to_filename_for_display (sal.symtab), sal.line); |
0378c332 FN |
1083 | } |
1084 | ||
ebcd3b23 MS |
1085 | /* If line was not specified by just a line number, and it does not |
1086 | imply a symtab, it must be an undebuggable symbol which means no | |
1087 | source code. */ | |
0378c332 FN |
1088 | |
1089 | if (!linenum_beg && sal.symtab == 0) | |
8a3fe4f8 | 1090 | error (_("No line number known for %s."), arg); |
0378c332 FN |
1091 | |
1092 | /* If this command is repeated with RET, | |
1093 | turn it into the no-arg variant. */ | |
1094 | ||
1095 | if (from_tty) | |
1096 | *arg = 0; | |
1097 | ||
1098 | if (dummy_beg && sal_end.symtab == 0) | |
8a3fe4f8 | 1099 | error (_("No default source file yet. Do \"help list\".")); |
0378c332 FN |
1100 | if (dummy_beg) |
1101 | print_source_lines (sal_end.symtab, | |
325fac50 | 1102 | std::max (sal_end.line - (get_lines_to_list () - 1), 1), |
0378c332 FN |
1103 | sal_end.line + 1, 0); |
1104 | else if (sal.symtab == 0) | |
8a3fe4f8 | 1105 | error (_("No default source file yet. Do \"help list\".")); |
0378c332 FN |
1106 | else if (no_end) |
1107 | { | |
1108 | int first_line = sal.line - get_lines_to_list () / 2; | |
1109 | ||
1110 | if (first_line < 1) first_line = 1; | |
1111 | ||
1112 | print_source_lines (sal.symtab, | |
1113 | first_line, | |
1114 | first_line + get_lines_to_list (), | |
1115 | 0); | |
1116 | } | |
1117 | else | |
1118 | print_source_lines (sal.symtab, sal.line, | |
1119 | (dummy_end | |
1120 | ? sal.line + get_lines_to_list () | |
1121 | : sal_end.line + 1), | |
1122 | 0); | |
1123 | } | |
1124 | ||
d14508fe DE |
1125 | /* Subroutine of disassemble_command to simplify it. |
1126 | Perform the disassembly. | |
1127 | NAME is the name of the function if known, or NULL. | |
1128 | [LOW,HIGH) are the range of addresses to disassemble. | |
1129 | MIXED is non-zero to print source with the assembler. */ | |
1130 | ||
1131 | static void | |
13274fc3 | 1132 | print_disassembly (struct gdbarch *gdbarch, const char *name, |
e6158f16 | 1133 | CORE_ADDR low, CORE_ADDR high, int flags) |
d14508fe DE |
1134 | { |
1135 | #if defined(TUI) | |
1136 | if (!tui_is_window_visible (DISASSEM_WIN)) | |
1137 | #endif | |
1138 | { | |
1139 | printf_filtered ("Dump of assembler code "); | |
1140 | if (name != NULL) | |
1141 | printf_filtered ("for function %s:\n", name); | |
1142 | else | |
5af949e3 UW |
1143 | printf_filtered ("from %s to %s:\n", |
1144 | paddress (gdbarch, low), paddress (gdbarch, high)); | |
d14508fe DE |
1145 | |
1146 | /* Dump the specified range. */ | |
7a8eb317 | 1147 | gdb_disassembly (gdbarch, current_uiout, flags, -1, low, high); |
d14508fe DE |
1148 | |
1149 | printf_filtered ("End of assembler dump.\n"); | |
1150 | gdb_flush (gdb_stdout); | |
1151 | } | |
1152 | #if defined(TUI) | |
1153 | else | |
1154 | { | |
13274fc3 | 1155 | tui_show_assembly (gdbarch, low); |
d14508fe DE |
1156 | } |
1157 | #endif | |
1158 | } | |
1159 | ||
1160 | /* Subroutine of disassemble_command to simplify it. | |
9c419145 | 1161 | Print a disassembly of the current function according to FLAGS. */ |
d14508fe DE |
1162 | |
1163 | static void | |
e6158f16 | 1164 | disassemble_current_function (int flags) |
d14508fe | 1165 | { |
13274fc3 UW |
1166 | struct frame_info *frame; |
1167 | struct gdbarch *gdbarch; | |
d14508fe | 1168 | CORE_ADDR low, high, pc; |
2c02bd72 | 1169 | const char *name; |
d14508fe | 1170 | |
13274fc3 UW |
1171 | frame = get_selected_frame (_("No frame selected.")); |
1172 | gdbarch = get_frame_arch (frame); | |
9bf4bce9 | 1173 | pc = get_frame_address_in_block (frame); |
d14508fe DE |
1174 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
1175 | error (_("No function contains program counter for selected frame.")); | |
1176 | #if defined(TUI) | |
1177 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously | |
1178 | `tui_version'. */ | |
1179 | if (tui_active) | |
1180 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
13274fc3 | 1181 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
d14508fe | 1182 | #endif |
13274fc3 | 1183 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
d14508fe | 1184 | |
e6158f16 | 1185 | print_disassembly (gdbarch, name, low, high, flags); |
d14508fe DE |
1186 | } |
1187 | ||
1188 | /* Dump a specified section of assembly code. | |
1189 | ||
1190 | Usage: | |
6ff0ba5f | 1191 | disassemble [/mrs] |
d14508fe | 1192 | - dump the assembly code for the function of the current pc |
6ff0ba5f | 1193 | disassemble [/mrs] addr |
d14508fe | 1194 | - dump the assembly code for the function at ADDR |
6ff0ba5f DE |
1195 | disassemble [/mrs] low,high |
1196 | disassemble [/mrs] low,+length | |
53a71c06 | 1197 | - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length) |
d14508fe | 1198 | |
6ff0ba5f DE |
1199 | A /m modifier will include source code with the assembly in a |
1200 | "source centric" view. This view lists only the file of the first insn, | |
1201 | even if other source files are involved (e.g., inlined functions), and | |
1202 | the output is in source order, even with optimized code. This view is | |
1203 | considered deprecated as it hasn't been useful in practice. | |
1204 | ||
1205 | A /r modifier will include raw instructions in hex with the assembly. | |
1206 | ||
1207 | A /s modifier will include source code with the assembly, like /m, with | |
1208 | two important differences: | |
1209 | 1) The output is still in pc address order. | |
1210 | 2) File names and contents for all relevant source files are displayed. */ | |
83c31e7d | 1211 | |
83c31e7d FN |
1212 | static void |
1213 | disassemble_command (char *arg, int from_tty) | |
1214 | { | |
13274fc3 | 1215 | struct gdbarch *gdbarch = get_current_arch (); |
83c31e7d | 1216 | CORE_ADDR low, high; |
2c02bd72 | 1217 | const char *name; |
d36fc00b | 1218 | CORE_ADDR pc; |
e6158f16 | 1219 | int flags; |
bbc13ae3 | 1220 | const char *p; |
83c31e7d | 1221 | |
bbc13ae3 | 1222 | p = arg; |
83c31e7d | 1223 | name = NULL; |
e6158f16 | 1224 | flags = 0; |
d14508fe | 1225 | |
bbc13ae3 | 1226 | if (p && *p == '/') |
83c31e7d | 1227 | { |
bbc13ae3 | 1228 | ++p; |
d14508fe | 1229 | |
bbc13ae3 | 1230 | if (*p == '\0') |
d14508fe DE |
1231 | error (_("Missing modifier.")); |
1232 | ||
bbc13ae3 | 1233 | while (*p && ! isspace (*p)) |
d14508fe | 1234 | { |
bbc13ae3 | 1235 | switch (*p++) |
d14508fe DE |
1236 | { |
1237 | case 'm': | |
6ff0ba5f | 1238 | flags |= DISASSEMBLY_SOURCE_DEPRECATED; |
e6158f16 HZ |
1239 | break; |
1240 | case 'r': | |
1241 | flags |= DISASSEMBLY_RAW_INSN; | |
d14508fe | 1242 | break; |
6ff0ba5f DE |
1243 | case 's': |
1244 | flags |= DISASSEMBLY_SOURCE; | |
1245 | break; | |
d14508fe DE |
1246 | default: |
1247 | error (_("Invalid disassembly modifier.")); | |
1248 | } | |
1249 | } | |
1250 | ||
bbc13ae3 | 1251 | p = skip_spaces_const (p); |
d14508fe DE |
1252 | } |
1253 | ||
6ff0ba5f DE |
1254 | if ((flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
1255 | == (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) | |
1256 | error (_("Cannot specify both /m and /s.")); | |
1257 | ||
bbc13ae3 | 1258 | if (! p || ! *p) |
d14508fe | 1259 | { |
9c419145 | 1260 | flags |= DISASSEMBLY_OMIT_FNAME; |
e6158f16 | 1261 | disassemble_current_function (flags); |
d14508fe | 1262 | return; |
83c31e7d | 1263 | } |
d14508fe | 1264 | |
bbc13ae3 KS |
1265 | pc = value_as_address (parse_to_comma_and_eval (&p)); |
1266 | if (p[0] == ',') | |
1267 | ++p; | |
1268 | if (p[0] == '\0') | |
83c31e7d FN |
1269 | { |
1270 | /* One argument. */ | |
83c31e7d | 1271 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
8a3fe4f8 | 1272 | error (_("No function contains specified address.")); |
83c31e7d | 1273 | #if defined(TUI) |
021e7609 AC |
1274 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1275 | `tui_version'. */ | |
22940a24 AC |
1276 | if (tui_active) |
1277 | /* FIXME: cagney/2004-02-07: This should be an observer. */ | |
13274fc3 | 1278 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
83c31e7d | 1279 | #endif |
13274fc3 | 1280 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
9c419145 | 1281 | flags |= DISASSEMBLY_OMIT_FNAME; |
83c31e7d FN |
1282 | } |
1283 | else | |
1284 | { | |
1285 | /* Two arguments. */ | |
53a71c06 | 1286 | int incl_flag = 0; |
21a0512e | 1287 | low = pc; |
bbc13ae3 KS |
1288 | p = skip_spaces_const (p); |
1289 | if (p[0] == '+') | |
53a71c06 | 1290 | { |
bbc13ae3 | 1291 | ++p; |
53a71c06 CR |
1292 | incl_flag = 1; |
1293 | } | |
bbc13ae3 | 1294 | high = parse_and_eval_address (p); |
53a71c06 CR |
1295 | if (incl_flag) |
1296 | high += low; | |
83c31e7d FN |
1297 | } |
1298 | ||
e6158f16 | 1299 | print_disassembly (gdbarch, name, low, high, flags); |
83c31e7d FN |
1300 | } |
1301 | ||
d318976c FN |
1302 | static void |
1303 | make_command (char *arg, int from_tty) | |
1304 | { | |
d318976c | 1305 | if (arg == 0) |
be47f9e8 | 1306 | shell_escape ("make", from_tty); |
d318976c FN |
1307 | else |
1308 | { | |
be47f9e8 | 1309 | std::string cmd = std::string ("make ") + arg; |
d318976c | 1310 | |
be47f9e8 PA |
1311 | shell_escape (cmd.c_str (), from_tty); |
1312 | } | |
d318976c FN |
1313 | } |
1314 | ||
d318976c FN |
1315 | static void |
1316 | show_user (char *args, int from_tty) | |
1317 | { | |
1318 | struct cmd_list_element *c; | |
1319 | extern struct cmd_list_element *cmdlist; | |
1320 | ||
1321 | if (args) | |
1322 | { | |
6f937416 | 1323 | const char *comname = args; |
cdb27c12 | 1324 | |
adb483fe | 1325 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); |
a9f116cb | 1326 | if (!cli_user_command_p (c)) |
8a3fe4f8 | 1327 | error (_("Not a user command.")); |
adb483fe | 1328 | show_user_1 (c, "", args, gdb_stdout); |
d318976c FN |
1329 | } |
1330 | else | |
1331 | { | |
1332 | for (c = cmdlist; c; c = c->next) | |
1333 | { | |
a9f116cb | 1334 | if (cli_user_command_p (c) || c->prefixlist != NULL) |
adb483fe | 1335 | show_user_1 (c, "", c->name, gdb_stdout); |
d318976c FN |
1336 | } |
1337 | } | |
1338 | } | |
1339 | ||
1340 | /* Search through names of commands and documentations for a certain | |
ebcd3b23 MS |
1341 | regular expression. */ |
1342 | ||
c419cfba | 1343 | static void |
d318976c FN |
1344 | apropos_command (char *searchstr, int from_tty) |
1345 | { | |
d318976c | 1346 | if (searchstr == NULL) |
f55af66d | 1347 | error (_("REGEXP string is empty")); |
d318976c | 1348 | |
2d7cc5c7 PA |
1349 | compiled_regex pattern (searchstr, REG_ICASE, |
1350 | _("Error in regular expression")); | |
dc92e161 | 1351 | |
2d7cc5c7 | 1352 | apropos_cmd (gdb_stdout, cmdlist, pattern, ""); |
d318976c | 1353 | } |
5a56e9c5 DE |
1354 | |
1355 | /* Subroutine of alias_command to simplify it. | |
1356 | Return the first N elements of ARGV flattened back to a string | |
1357 | with a space separating each element. | |
1358 | ARGV may not be NULL. | |
1359 | This does not take care of quoting elements in case they contain spaces | |
1360 | on purpose. */ | |
1361 | ||
a97e29d2 TT |
1362 | static std::string |
1363 | argv_to_string (char **argv, int n) | |
5a56e9c5 DE |
1364 | { |
1365 | int i; | |
a97e29d2 | 1366 | std::string result; |
5a56e9c5 DE |
1367 | |
1368 | gdb_assert (argv != NULL); | |
1369 | gdb_assert (n >= 0 && n <= countargv (argv)); | |
1370 | ||
1371 | for (i = 0; i < n; ++i) | |
1372 | { | |
1373 | if (i > 0) | |
a97e29d2 TT |
1374 | result += " "; |
1375 | result += argv[i]; | |
5a56e9c5 DE |
1376 | } |
1377 | ||
1378 | return result; | |
1379 | } | |
1380 | ||
1381 | /* Subroutine of alias_command to simplify it. | |
1382 | Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */ | |
1383 | ||
1384 | static int | |
6f937416 | 1385 | valid_command_p (const char *command) |
5a56e9c5 DE |
1386 | { |
1387 | struct cmd_list_element *c; | |
1388 | ||
1389 | c = lookup_cmd_1 (& command, cmdlist, NULL, 1); | |
1390 | ||
1391 | if (c == NULL || c == (struct cmd_list_element *) -1) | |
1392 | return FALSE; | |
1393 | ||
1394 | /* This is the slightly tricky part. | |
1395 | lookup_cmd_1 will return a pointer to the last part of COMMAND | |
1396 | to match, leaving COMMAND pointing at the remainder. */ | |
1397 | while (*command == ' ' || *command == '\t') | |
1398 | ++command; | |
1399 | return *command == '\0'; | |
1400 | } | |
1401 | ||
7f31862a PA |
1402 | /* Called when "alias" was incorrectly used. */ |
1403 | ||
1404 | static void | |
1405 | alias_usage_error (void) | |
1406 | { | |
1407 | error (_("Usage: alias [-a] [--] ALIAS = COMMAND")); | |
1408 | } | |
1409 | ||
5a56e9c5 DE |
1410 | /* Make an alias of an existing command. */ |
1411 | ||
1412 | static void | |
1413 | alias_command (char *args, int from_tty) | |
1414 | { | |
1415 | int i, alias_argc, command_argc; | |
1416 | int abbrev_flag = 0; | |
a97e29d2 TT |
1417 | char *args2, *equals; |
1418 | const char *alias, *command; | |
5a56e9c5 | 1419 | char **alias_argv, **command_argv; |
5b3fca71 | 1420 | struct cleanup *cleanup; |
5a56e9c5 DE |
1421 | |
1422 | if (args == NULL || strchr (args, '=') == NULL) | |
7f31862a | 1423 | alias_usage_error (); |
5a56e9c5 DE |
1424 | |
1425 | args2 = xstrdup (args); | |
5b3fca71 | 1426 | cleanup = make_cleanup (xfree, args2); |
5a56e9c5 DE |
1427 | equals = strchr (args2, '='); |
1428 | *equals = '\0'; | |
1429 | alias_argv = gdb_buildargv (args2); | |
1430 | make_cleanup_freeargv (alias_argv); | |
1431 | command_argv = gdb_buildargv (equals + 1); | |
1432 | make_cleanup_freeargv (command_argv); | |
1433 | ||
1434 | for (i = 0; alias_argv[i] != NULL; ) | |
1435 | { | |
1436 | if (strcmp (alias_argv[i], "-a") == 0) | |
1437 | { | |
1438 | ++alias_argv; | |
1439 | abbrev_flag = 1; | |
1440 | } | |
1441 | else if (strcmp (alias_argv[i], "--") == 0) | |
1442 | { | |
1443 | ++alias_argv; | |
1444 | break; | |
1445 | } | |
1446 | else | |
1447 | break; | |
1448 | } | |
1449 | ||
1450 | if (alias_argv[0] == NULL || command_argv[0] == NULL | |
1451 | || *alias_argv[0] == '\0' || *command_argv[0] == '\0') | |
7f31862a | 1452 | alias_usage_error (); |
5a56e9c5 DE |
1453 | |
1454 | for (i = 0; alias_argv[i] != NULL; ++i) | |
1455 | { | |
1456 | if (! valid_user_defined_cmd_name_p (alias_argv[i])) | |
1457 | { | |
1458 | if (i == 0) | |
1459 | error (_("Invalid command name: %s"), alias_argv[i]); | |
1460 | else | |
1461 | error (_("Invalid command element name: %s"), alias_argv[i]); | |
1462 | } | |
1463 | } | |
1464 | ||
1465 | alias_argc = countargv (alias_argv); | |
1466 | command_argc = countargv (command_argv); | |
1467 | ||
1468 | /* COMMAND must exist. | |
1469 | Reconstruct the command to remove any extraneous spaces, | |
1470 | for better error messages. */ | |
a97e29d2 TT |
1471 | std::string command_string (argv_to_string (command_argv, command_argc)); |
1472 | command = command_string.c_str (); | |
5a56e9c5 DE |
1473 | if (! valid_command_p (command)) |
1474 | error (_("Invalid command to alias to: %s"), command); | |
1475 | ||
1476 | /* ALIAS must not exist. */ | |
a97e29d2 TT |
1477 | std::string alias_string (argv_to_string (alias_argv, alias_argc)); |
1478 | alias = alias_string.c_str (); | |
5a56e9c5 DE |
1479 | if (valid_command_p (alias)) |
1480 | error (_("Alias already exists: %s"), alias); | |
1481 | ||
1482 | /* If ALIAS is one word, it is an alias for the entire COMMAND. | |
1483 | Example: alias spe = set print elements | |
1484 | ||
1485 | Otherwise ALIAS and COMMAND must have the same number of words, | |
1486 | and every word except the last must match; and the last word of | |
1487 | ALIAS is made an alias of the last word of COMMAND. | |
1488 | Example: alias set print elms = set pr elem | |
1489 | Note that unambiguous abbreviations are allowed. */ | |
1490 | ||
1491 | if (alias_argc == 1) | |
1492 | { | |
1493 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1494 | add_com_alias (xstrdup (alias_argv[0]), command, class_alias, | |
1495 | abbrev_flag); | |
1496 | } | |
1497 | else | |
1498 | { | |
6f937416 | 1499 | const char *alias_prefix, *command_prefix; |
5a56e9c5 DE |
1500 | struct cmd_list_element *c_alias, *c_command; |
1501 | ||
1502 | if (alias_argc != command_argc) | |
1503 | error (_("Mismatched command length between ALIAS and COMMAND.")); | |
1504 | ||
1505 | /* Create copies of ALIAS and COMMAND without the last word, | |
1506 | and use that to verify the leading elements match. */ | |
a97e29d2 TT |
1507 | std::string alias_prefix_string (argv_to_string (alias_argv, |
1508 | alias_argc - 1)); | |
1509 | std::string command_prefix_string (argv_to_string (alias_argv, | |
1510 | command_argc - 1)); | |
1511 | alias_prefix = alias_prefix_string.c_str (); | |
1512 | command_prefix = command_prefix_string.c_str (); | |
5a56e9c5 DE |
1513 | |
1514 | c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1); | |
1515 | /* We've already tried to look up COMMAND. */ | |
1516 | gdb_assert (c_command != NULL | |
1517 | && c_command != (struct cmd_list_element *) -1); | |
1518 | gdb_assert (c_command->prefixlist != NULL); | |
1519 | c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1); | |
1520 | if (c_alias != c_command) | |
1521 | error (_("ALIAS and COMMAND prefixes do not match.")); | |
1522 | ||
1523 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ | |
1524 | add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]), | |
1525 | command_argv[command_argc - 1], | |
1526 | class_alias, abbrev_flag, c_command->prefixlist); | |
1527 | } | |
5b3fca71 TT |
1528 | |
1529 | do_cleanups (cleanup); | |
5a56e9c5 | 1530 | } |
d318976c | 1531 | \f |
0378c332 | 1532 | /* Print a list of files and line numbers which a user may choose from |
ebcd3b23 MS |
1533 | in order to list a function which was specified ambiguously (as |
1534 | with `list classname::overloadedfuncname', for example). The | |
1535 | vector in SALS provides the filenames and line numbers. */ | |
0378c332 FN |
1536 | |
1537 | static void | |
1538 | ambiguous_line_spec (struct symtabs_and_lines *sals) | |
1539 | { | |
1540 | int i; | |
1541 | ||
1542 | for (i = 0; i < sals->nelts; ++i) | |
a3f17187 | 1543 | printf_filtered (_("file: \"%s\", line number: %d\n"), |
05cba821 JK |
1544 | symtab_to_filename_for_display (sals->sals[i].symtab), |
1545 | sals->sals[i].line); | |
0378c332 FN |
1546 | } |
1547 | ||
f8eba3c6 TT |
1548 | /* Sort function for filter_sals. */ |
1549 | ||
1550 | static int | |
1551 | compare_symtabs (const void *a, const void *b) | |
1552 | { | |
9a3c8263 SM |
1553 | const struct symtab_and_line *sala = (const struct symtab_and_line *) a; |
1554 | const struct symtab_and_line *salb = (const struct symtab_and_line *) b; | |
ee6f8984 DE |
1555 | const char *dira = SYMTAB_DIRNAME (sala->symtab); |
1556 | const char *dirb = SYMTAB_DIRNAME (salb->symtab); | |
f8eba3c6 TT |
1557 | int r; |
1558 | ||
ee6f8984 | 1559 | if (dira == NULL) |
f8eba3c6 | 1560 | { |
ee6f8984 | 1561 | if (dirb != NULL) |
f8eba3c6 TT |
1562 | return -1; |
1563 | } | |
ee6f8984 | 1564 | else if (dirb == NULL) |
f8eba3c6 | 1565 | { |
ee6f8984 | 1566 | if (dira != NULL) |
f8eba3c6 TT |
1567 | return 1; |
1568 | } | |
1569 | else | |
1570 | { | |
ee6f8984 | 1571 | r = filename_cmp (dira, dirb); |
f8eba3c6 TT |
1572 | if (r) |
1573 | return r; | |
1574 | } | |
1575 | ||
1576 | r = filename_cmp (sala->symtab->filename, salb->symtab->filename); | |
1577 | if (r) | |
1578 | return r; | |
1579 | ||
1580 | if (sala->line < salb->line) | |
1581 | return -1; | |
1582 | return sala->line == salb->line ? 0 : 1; | |
1583 | } | |
1584 | ||
1585 | /* Remove any SALs that do not match the current program space, or | |
1586 | which appear to be "file:line" duplicates. */ | |
1587 | ||
1588 | static void | |
1589 | filter_sals (struct symtabs_and_lines *sals) | |
1590 | { | |
1591 | int i, out, prev; | |
1592 | ||
1593 | out = 0; | |
1594 | for (i = 0; i < sals->nelts; ++i) | |
1595 | { | |
1596 | if (sals->sals[i].pspace == current_program_space | |
ccbac09d | 1597 | && sals->sals[i].symtab != NULL) |
f8eba3c6 TT |
1598 | { |
1599 | sals->sals[out] = sals->sals[i]; | |
1600 | ++out; | |
1601 | } | |
1602 | } | |
1603 | sals->nelts = out; | |
1604 | ||
1605 | qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line), | |
1606 | compare_symtabs); | |
1607 | ||
1608 | out = 1; | |
1609 | prev = 0; | |
1610 | for (i = 1; i < sals->nelts; ++i) | |
1611 | { | |
1612 | if (compare_symtabs (&sals->sals[prev], &sals->sals[i])) | |
1613 | { | |
1614 | /* Symtabs differ. */ | |
1615 | sals->sals[out] = sals->sals[i]; | |
1616 | prev = out; | |
1617 | ++out; | |
1618 | } | |
1619 | } | |
f8eba3c6 TT |
1620 | |
1621 | if (sals->nelts == 0) | |
1622 | { | |
1623 | xfree (sals->sals); | |
1624 | sals->sals = NULL; | |
1625 | } | |
2f2e97fa TT |
1626 | else |
1627 | sals->nelts = out; | |
f8eba3c6 TT |
1628 | } |
1629 | ||
d318976c FN |
1630 | static void |
1631 | set_debug (char *arg, int from_tty) | |
1632 | { | |
9a2b4c1b MS |
1633 | printf_unfiltered (_("\"set debug\" must be followed by " |
1634 | "the name of a debug subcommand.\n")); | |
635c7e8a | 1635 | help_list (setdebuglist, "set debug ", all_commands, gdb_stdout); |
d318976c FN |
1636 | } |
1637 | ||
1638 | static void | |
1639 | show_debug (char *args, int from_tty) | |
1640 | { | |
1641 | cmd_show_list (showdebuglist, from_tty, ""); | |
1642 | } | |
1643 | ||
1644 | void | |
1645 | init_cmd_lists (void) | |
1646 | { | |
20f01a46 | 1647 | max_user_call_depth = 1024; |
d318976c FN |
1648 | } |
1649 | ||
920d2a44 AC |
1650 | static void |
1651 | show_info_verbose (struct ui_file *file, int from_tty, | |
1652 | struct cmd_list_element *c, | |
1653 | const char *value) | |
1654 | { | |
1655 | if (info_verbose) | |
9a2b4c1b MS |
1656 | fprintf_filtered (file, |
1657 | _("Verbose printing of informational messages is %s.\n"), | |
1658 | value); | |
920d2a44 AC |
1659 | else |
1660 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); | |
1661 | } | |
1662 | ||
1663 | static void | |
1664 | show_history_expansion_p (struct ui_file *file, int from_tty, | |
1665 | struct cmd_list_element *c, const char *value) | |
1666 | { | |
1667 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), | |
1668 | value); | |
1669 | } | |
1670 | ||
920d2a44 AC |
1671 | static void |
1672 | show_remote_debug (struct ui_file *file, int from_tty, | |
1673 | struct cmd_list_element *c, const char *value) | |
1674 | { | |
1675 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), | |
1676 | value); | |
1677 | } | |
1678 | ||
1679 | static void | |
1680 | show_remote_timeout (struct ui_file *file, int from_tty, | |
1681 | struct cmd_list_element *c, const char *value) | |
1682 | { | |
9a2b4c1b MS |
1683 | fprintf_filtered (file, |
1684 | _("Timeout limit to wait for target to respond is %s.\n"), | |
920d2a44 AC |
1685 | value); |
1686 | } | |
1687 | ||
1688 | static void | |
1689 | show_max_user_call_depth (struct ui_file *file, int from_tty, | |
1690 | struct cmd_list_element *c, const char *value) | |
1691 | { | |
9a2b4c1b MS |
1692 | fprintf_filtered (file, |
1693 | _("The max call depth for user-defined commands is %s.\n"), | |
920d2a44 AC |
1694 | value); |
1695 | } | |
1696 | ||
d318976c | 1697 | \f |
43e4916f TT |
1698 | |
1699 | initialize_file_ftype _initialize_cli_cmds; | |
1700 | ||
d318976c | 1701 | void |
43e4916f | 1702 | _initialize_cli_cmds (void) |
d318976c FN |
1703 | { |
1704 | struct cmd_list_element *c; | |
1705 | ||
1706 | /* Define the classes of commands. | |
1bfeeb0f | 1707 | They will appear in the help list in alphabetical order. */ |
d318976c | 1708 | |
1a966eab AC |
1709 | add_cmd ("internals", class_maintenance, NULL, _("\ |
1710 | Maintenance commands.\n\ | |
d318976c FN |
1711 | Some gdb commands are provided just for use by gdb maintainers.\n\ |
1712 | These commands are subject to frequent change, and may not be as\n\ | |
1a966eab | 1713 | well documented as user commands."), |
d318976c | 1714 | &cmdlist); |
1a966eab | 1715 | add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist); |
9a2b4c1b MS |
1716 | add_cmd ("aliases", class_alias, NULL, |
1717 | _("Aliases of other commands."), &cmdlist); | |
1a966eab AC |
1718 | add_cmd ("user-defined", class_user, NULL, _("\ |
1719 | User-defined commands.\n\ | |
d318976c | 1720 | The commands in this class are those defined by the user.\n\ |
1a966eab AC |
1721 | Use the \"define\" command to define a command."), &cmdlist); |
1722 | add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist); | |
d318976c | 1723 | if (!dbx_commands) |
1a966eab AC |
1724 | add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist); |
1725 | add_cmd ("files", class_files, NULL, _("Specifying and examining files."), | |
1726 | &cmdlist); | |
1727 | add_cmd ("breakpoints", class_breakpoint, NULL, | |
1728 | _("Making program stop at certain points."), &cmdlist); | |
1729 | add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist); | |
1730 | add_cmd ("stack", class_stack, NULL, _("\ | |
1731 | Examining the stack.\n\ | |
d318976c FN |
1732 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ |
1733 | counting from zero for the innermost (currently executing) frame.\n\n\ | |
1734 | At any time gdb identifies one frame as the \"selected\" frame.\n\ | |
1735 | Variable lookups are done with respect to the selected frame.\n\ | |
1736 | When the program being debugged stops, gdb selects the innermost frame.\n\ | |
1a966eab | 1737 | The commands below can be used to select other frames by number or address."), |
d318976c | 1738 | &cmdlist); |
1a966eab | 1739 | add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist); |
d318976c | 1740 | |
ebcd3b23 | 1741 | /* Define general commands. */ |
d318976c | 1742 | |
d729566a | 1743 | add_com ("pwd", class_files, pwd_command, _("\ |
1bedd215 | 1744 | Print working directory. This is used for your program as well.")); |
4f8d22e3 | 1745 | |
1a966eab AC |
1746 | c = add_cmd ("cd", class_files, cd_command, _("\ |
1747 | Set working directory to DIR for debugger and program being debugged.\n\ | |
d318976c | 1748 | The change does not take effect for the program being debugged\n\ |
1a966eab | 1749 | until the next time it is started."), &cmdlist); |
5ba2abeb | 1750 | set_cmd_completer (c, filename_completer); |
d318976c | 1751 | |
1bedd215 AC |
1752 | add_com ("echo", class_support, echo_command, _("\ |
1753 | Print a constant string. Give string as argument.\n\ | |
d318976c FN |
1754 | C escape sequences may be used in the argument.\n\ |
1755 | No newline is added at the end of the argument;\n\ | |
1756 | use \"\\n\" if you want a newline to be printed.\n\ | |
1757 | Since leading and trailing whitespace are ignored in command arguments,\n\ | |
1758 | if you want to print some you must use \"\\\" before leading whitespace\n\ | |
1bedd215 | 1759 | to be printed or after trailing whitespace.")); |
d318976c | 1760 | |
973817a3 JB |
1761 | add_setshow_enum_cmd ("script-extension", class_support, |
1762 | script_ext_enums, &script_ext_mode, _("\ | |
1763 | Set mode for script filename extension recognition."), _("\ | |
1764 | Show mode for script filename extension recognition."), _("\ | |
1765 | off == no filename extension recognition (all sourced files are GDB scripts)\n\ | |
1766 | soft == evaluate script according to filename extension, fallback to GDB script" | |
1767 | "\n\ | |
1768 | strict == evaluate script according to filename extension, error if not supported" | |
1769 | ), | |
1770 | NULL, | |
1771 | show_script_ext_mode, | |
1772 | &setlist, &showlist); | |
1773 | ||
bdb52a22 TT |
1774 | add_com ("quit", class_support, quit_command, _("\ |
1775 | Exit gdb.\n\ | |
1776 | Usage: quit [EXPR]\n\ | |
1777 | The optional expression EXPR, if present, is evaluated and the result\n\ | |
1778 | used as GDB's exit code. The default is zero.")); | |
1bedd215 AC |
1779 | c = add_com ("help", class_support, help_command, |
1780 | _("Print list of commands.")); | |
5ba2abeb | 1781 | set_cmd_completer (c, command_completer); |
d318976c FN |
1782 | add_com_alias ("q", "quit", class_support, 1); |
1783 | add_com_alias ("h", "help", class_support, 1); | |
1784 | ||
5bf193a2 AC |
1785 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ |
1786 | Set verbosity."), _("\ | |
1787 | Show verbosity."), NULL, | |
1788 | set_verbose, | |
920d2a44 | 1789 | show_info_verbose, |
5bf193a2 | 1790 | &setlist, &showlist); |
d318976c FN |
1791 | |
1792 | add_prefix_cmd ("history", class_support, set_history, | |
1bedd215 | 1793 | _("Generic command for setting command history parameters."), |
d318976c FN |
1794 | &sethistlist, "set history ", 0, &setlist); |
1795 | add_prefix_cmd ("history", class_support, show_history, | |
1bedd215 | 1796 | _("Generic command for showing command history parameters."), |
d318976c FN |
1797 | &showhistlist, "show history ", 0, &showlist); |
1798 | ||
5bf193a2 AC |
1799 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ |
1800 | Set history expansion on command input."), _("\ | |
1801 | Show history expansion on command input."), _("\ | |
1802 | Without an argument, history expansion is enabled."), | |
1803 | NULL, | |
920d2a44 | 1804 | show_history_expansion_p, |
5bf193a2 | 1805 | &sethistlist, &showhistlist); |
d318976c | 1806 | |
d729566a | 1807 | add_prefix_cmd ("info", class_info, info_command, _("\ |
1bedd215 | 1808 | Generic command for showing things about the program being debugged."), |
d729566a | 1809 | &infolist, "info ", 0, &cmdlist); |
d318976c | 1810 | add_com_alias ("i", "info", class_info, 1); |
a177aad3 | 1811 | add_com_alias ("inf", "info", class_info, 1); |
d318976c FN |
1812 | |
1813 | add_com ("complete", class_obscure, complete_command, | |
1bedd215 | 1814 | _("List the completions for the rest of the line as a command.")); |
d318976c | 1815 | |
d729566a | 1816 | add_prefix_cmd ("show", class_info, show_command, _("\ |
700b53b1 | 1817 | Generic command for showing things about the debugger."), |
d729566a | 1818 | &showlist, "show ", 0, &cmdlist); |
d318976c | 1819 | /* Another way to get at the same thing. */ |
1bedd215 | 1820 | add_info ("set", show_command, _("Show all GDB settings.")); |
d318976c | 1821 | |
db5f229b | 1822 | add_cmd ("commands", no_set_class, show_commands, _("\ |
1a966eab | 1823 | Show the history of commands you typed.\n\ |
d318976c | 1824 | You can supply a command number to start with, or a `+' to start after\n\ |
1a966eab | 1825 | the previous command number shown."), |
d318976c FN |
1826 | &showlist); |
1827 | ||
db5f229b | 1828 | add_cmd ("version", no_set_class, show_version, |
1a966eab | 1829 | _("Show what version of GDB this is."), &showlist); |
d318976c | 1830 | |
6eaaf48b EZ |
1831 | add_cmd ("configuration", no_set_class, show_configuration, |
1832 | _("Show how GDB was configured at build time."), &showlist); | |
1833 | ||
85c07804 AC |
1834 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ |
1835 | Set debugging of remote protocol."), _("\ | |
1836 | Show debugging of remote protocol."), _("\ | |
d318976c | 1837 | When enabled, each packet sent or received with the remote target\n\ |
85c07804 AC |
1838 | is displayed."), |
1839 | NULL, | |
920d2a44 | 1840 | show_remote_debug, |
85c07804 | 1841 | &setdebuglist, &showdebuglist); |
d318976c | 1842 | |
6fc1c773 YQ |
1843 | add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class, |
1844 | &remote_timeout, _("\ | |
c0d88b1b AC |
1845 | Set timeout limit to wait for target to respond."), _("\ |
1846 | Show timeout limit to wait for target to respond."), _("\ | |
d318976c | 1847 | This value is used to set the time limit for gdb to wait for a response\n\ |
c0d88b1b | 1848 | from the target."), |
6fc1c773 YQ |
1849 | NULL, |
1850 | show_remote_timeout, | |
1851 | &setlist, &showlist); | |
d318976c FN |
1852 | |
1853 | add_prefix_cmd ("debug", no_class, set_debug, | |
1bedd215 | 1854 | _("Generic command for setting gdb debugging flags"), |
d318976c FN |
1855 | &setdebuglist, "set debug ", 0, &setlist); |
1856 | ||
1857 | add_prefix_cmd ("debug", no_class, show_debug, | |
1bedd215 | 1858 | _("Generic command for showing gdb debugging flags"), |
d318976c FN |
1859 | &showdebuglist, "show debug ", 0, &showlist); |
1860 | ||
be47f9e8 | 1861 | c = add_com ("shell", class_support, shell_command, _("\ |
1bedd215 AC |
1862 | Execute the rest of the line as a shell command.\n\ |
1863 | With no arguments, run an inferior shell.")); | |
5ba2abeb | 1864 | set_cmd_completer (c, filename_completer); |
d318976c | 1865 | |
1bedd215 AC |
1866 | c = add_com ("edit", class_files, edit_command, _("\ |
1867 | Edit specified file or function.\n\ | |
0378c332 | 1868 | With no argument, edits file containing most recent line listed.\n\ |
0378c332 FN |
1869 | Editing targets can be specified in these ways:\n\ |
1870 | FILE:LINENUM, to edit at that line in that file,\n\ | |
1871 | FUNCTION, to edit at the beginning of that function,\n\ | |
1872 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1873 | *ADDRESS, to edit at the line containing that address.\n\ | |
1bedd215 | 1874 | Uses EDITOR environment variable contents as editor (or ex as default).")); |
0378c332 FN |
1875 | |
1876 | c->completer = location_completer; | |
1877 | ||
1bedd215 AC |
1878 | add_com ("list", class_files, list_command, _("\ |
1879 | List specified function or line.\n\ | |
0378c332 FN |
1880 | With no argument, lists ten more lines after or around previous listing.\n\ |
1881 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ | |
1882 | One argument specifies a line, and ten lines are listed around that line.\n\ | |
1883 | Two arguments with comma between specify starting and ending lines to list.\n\ | |
0378c332 FN |
1884 | Lines can be specified in these ways:\n\ |
1885 | LINENUM, to list around that line in current file,\n\ | |
1886 | FILE:LINENUM, to list around that line in that file,\n\ | |
1887 | FUNCTION, to list around beginning of that function,\n\ | |
1888 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1889 | *ADDRESS, to list around the line containing that address.\n\ | |
4fdd372d AB |
1890 | With two args, if one is empty, it stands for ten lines away from\n\ |
1891 | the other arg.\n\ | |
1892 | \n\ | |
1893 | By default, when a single location is given, display ten lines.\n\ | |
1894 | This can be changed using \"set listsize\", and the current value\n\ | |
1895 | can be shown using \"show listsize\".")); | |
0378c332 | 1896 | |
4f45d445 | 1897 | add_com_alias ("l", "list", class_files, 1); |
0378c332 FN |
1898 | |
1899 | if (dbx_commands) | |
1900 | add_com_alias ("file", "list", class_files, 1); | |
1901 | ||
1bedd215 AC |
1902 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ |
1903 | Disassemble a specified section of memory.\n\ | |
83c31e7d | 1904 | Default is the function surrounding the pc of the selected frame.\n\ |
6ff0ba5f | 1905 | \n\ |
d14508fe | 1906 | With a /m modifier, source lines are included (if available).\n\ |
6ff0ba5f DE |
1907 | This view is \"source centric\": the output is in source line order,\n\ |
1908 | regardless of any optimization that is present. Only the main source file\n\ | |
1909 | is displayed, not those of, e.g., any inlined functions.\n\ | |
1910 | This modifier hasn't proved useful in practice and is deprecated\n\ | |
1911 | in favor of /s.\n\ | |
1912 | \n\ | |
1913 | With a /s modifier, source lines are included (if available).\n\ | |
1914 | This differs from /m in two important respects:\n\ | |
1915 | - the output is still in pc address order, and\n\ | |
1916 | - file names and contents for all relevant source files are displayed.\n\ | |
1917 | \n\ | |
e6158f16 | 1918 | With a /r modifier, raw instructions in hex are included.\n\ |
6ff0ba5f | 1919 | \n\ |
83c31e7d | 1920 | With a single argument, the function surrounding that address is dumped.\n\ |
53a71c06 | 1921 | Two arguments (separated by a comma) are taken as a range of memory to dump,\n\ |
7e1e0340 DE |
1922 | in the form of \"start,end\", or \"start,+length\".\n\ |
1923 | \n\ | |
1924 | Note that the address is interpreted as an expression, not as a location\n\ | |
1925 | like in the \"break\" command.\n\ | |
1926 | So, for example, if you want to disassemble function bar in file foo.c\n\ | |
1927 | you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\".")); | |
83c31e7d | 1928 | set_cmd_completer (c, location_completer); |
0378c332 | 1929 | |
ed59ded5 | 1930 | add_com_alias ("!", "shell", class_support, 0); |
d318976c | 1931 | |
1bedd215 AC |
1932 | c = add_com ("make", class_support, make_command, _("\ |
1933 | Run the ``make'' program using the rest of the line as arguments.")); | |
5ba2abeb | 1934 | set_cmd_completer (c, filename_completer); |
1a966eab | 1935 | add_cmd ("user", no_class, show_user, _("\ |
ed3ef339 | 1936 | Show definitions of non-python/scheme user defined commands.\n\ |
d318976c | 1937 | Argument is the name of the user defined command.\n\ |
1a966eab | 1938 | With no argument, show definitions of all user defined commands."), &showlist); |
1bedd215 AC |
1939 | add_com ("apropos", class_support, apropos_command, |
1940 | _("Search for commands matching a REGEXP")); | |
20f01a46 | 1941 | |
883b9c6c | 1942 | add_setshow_uinteger_cmd ("max-user-call-depth", no_class, |
c0d88b1b | 1943 | &max_user_call_depth, _("\ |
ed3ef339 DE |
1944 | Set the max call depth for non-python/scheme user-defined commands."), _("\ |
1945 | Show the max call depth for non-python/scheme user-defined commands."), NULL, | |
883b9c6c YQ |
1946 | NULL, |
1947 | show_max_user_call_depth, | |
1948 | &setlist, &showlist); | |
16026cd7 AS |
1949 | |
1950 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ | |
1951 | Set tracing of GDB CLI commands."), _("\ | |
1952 | Show state of GDB CLI command tracing."), _("\ | |
1953 | When 'on', each command is displayed as it is executed."), | |
1954 | NULL, | |
1955 | NULL, | |
1956 | &setlist, &showlist); | |
5a56e9c5 DE |
1957 | |
1958 | c = add_com ("alias", class_support, alias_command, _("\ | |
1959 | Define a new command that is an alias of an existing command.\n\ | |
1960 | Usage: alias [-a] [--] ALIAS = COMMAND\n\ | |
1961 | ALIAS is the name of the alias command to create.\n\ | |
1962 | COMMAND is the command being aliased to.\n\ | |
1963 | If \"-a\" is specified, the command is an abbreviation,\n\ | |
1964 | and will not appear in help command list output.\n\ | |
1965 | \n\ | |
1966 | Examples:\n\ | |
1967 | Make \"spe\" an alias of \"set print elements\":\n\ | |
1968 | alias spe = set print elements\n\ | |
1969 | Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\ | |
1970 | alias -a set print elms = set print elements")); | |
d318976c | 1971 | } |
43e4916f TT |
1972 | |
1973 | void | |
1974 | init_cli_cmds (void) | |
1975 | { | |
1976 | struct cmd_list_element *c; | |
1977 | char *source_help_text; | |
1978 | ||
1979 | source_help_text = xstrprintf (_("\ | |
1980 | Read commands from a file named FILE.\n\ | |
1981 | \n\ | |
1982 | Usage: source [-s] [-v] FILE\n\ | |
1983 | -s: search for the script in the source search path,\n\ | |
1984 | even if FILE contains directories.\n\ | |
1985 | -v: each command in FILE is echoed as it is executed.\n\ | |
1986 | \n\ | |
1987 | Note that the file \"%s\" is read automatically in this way\n\ | |
1988 | when GDB is started."), gdbinit); | |
1989 | c = add_cmd ("source", class_support, source_command, | |
1990 | source_help_text, &cmdlist); | |
1991 | set_cmd_completer (c, filename_completer); | |
1992 | } |