| 1 | /* GDB CLI commands. |
| 2 | |
| 3 | Copyright (C) 2000-2017 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | #include "arch-utils.h" |
| 22 | #include "readline/readline.h" |
| 23 | #include "readline/tilde.h" |
| 24 | #include "completer.h" |
| 25 | #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */ |
| 26 | #include "gdb_wait.h" /* For shell escape implementation. */ |
| 27 | #include "gdb_regex.h" /* Used by apropos_command. */ |
| 28 | #include "gdb_vfork.h" |
| 29 | #include "linespec.h" |
| 30 | #include "expression.h" |
| 31 | #include "frame.h" |
| 32 | #include "value.h" |
| 33 | #include "language.h" |
| 34 | #include "filenames.h" /* For DOSish file names. */ |
| 35 | #include "objfiles.h" |
| 36 | #include "source.h" |
| 37 | #include "disasm.h" |
| 38 | #include "tracepoint.h" |
| 39 | #include "filestuff.h" |
| 40 | #include "location.h" |
| 41 | |
| 42 | #include "ui-out.h" |
| 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" |
| 49 | #include "cli/cli-utils.h" |
| 50 | |
| 51 | #include "extension.h" |
| 52 | |
| 53 | #ifdef TUI |
| 54 | #include "tui/tui.h" /* For tui_active et.al. */ |
| 55 | #endif |
| 56 | |
| 57 | #include <fcntl.h> |
| 58 | #include <algorithm> |
| 59 | #include <string> |
| 60 | |
| 61 | /* Prototypes for local command functions */ |
| 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 help_command (char *, int); |
| 70 | |
| 71 | static void show_command (char *, int); |
| 72 | |
| 73 | static void info_command (char *, int); |
| 74 | |
| 75 | static void show_debug (char *, int); |
| 76 | |
| 77 | static void set_debug (char *, int); |
| 78 | |
| 79 | static void make_command (char *, int); |
| 80 | |
| 81 | static void shell_escape (const char *, int); |
| 82 | |
| 83 | static void edit_command (char *, int); |
| 84 | |
| 85 | static void list_command (char *, int); |
| 86 | |
| 87 | /* Prototypes for local utility functions */ |
| 88 | |
| 89 | static void print_sal_location (const symtab_and_line &sal); |
| 90 | |
| 91 | static void ambiguous_line_spec (gdb::array_view<const symtab_and_line> sals, |
| 92 | const char *format, ...) |
| 93 | ATTRIBUTE_PRINTF (2, 3); |
| 94 | |
| 95 | static void filter_sals (std::vector<symtab_and_line> &); |
| 96 | |
| 97 | \f |
| 98 | /* Limit the call depth of user-defined commands */ |
| 99 | unsigned int max_user_call_depth; |
| 100 | |
| 101 | /* Define all cmd_list_elements. */ |
| 102 | |
| 103 | /* Chain containing all defined commands. */ |
| 104 | |
| 105 | struct cmd_list_element *cmdlist; |
| 106 | |
| 107 | /* Chain containing all defined info subcommands. */ |
| 108 | |
| 109 | struct cmd_list_element *infolist; |
| 110 | |
| 111 | /* Chain containing all defined enable subcommands. */ |
| 112 | |
| 113 | struct cmd_list_element *enablelist; |
| 114 | |
| 115 | /* Chain containing all defined disable subcommands. */ |
| 116 | |
| 117 | struct cmd_list_element *disablelist; |
| 118 | |
| 119 | /* Chain containing all defined stop subcommands. */ |
| 120 | |
| 121 | struct cmd_list_element *stoplist; |
| 122 | |
| 123 | /* Chain containing all defined delete subcommands. */ |
| 124 | |
| 125 | struct cmd_list_element *deletelist; |
| 126 | |
| 127 | /* Chain containing all defined detach subcommands. */ |
| 128 | |
| 129 | struct cmd_list_element *detachlist; |
| 130 | |
| 131 | /* Chain containing all defined kill subcommands. */ |
| 132 | |
| 133 | struct cmd_list_element *killlist; |
| 134 | |
| 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 | |
| 159 | /* Chain containing all defined maintenance subcommands. */ |
| 160 | |
| 161 | struct cmd_list_element *maintenancelist; |
| 162 | |
| 163 | /* Chain containing all defined "maintenance info" subcommands. */ |
| 164 | |
| 165 | struct cmd_list_element *maintenanceinfolist; |
| 166 | |
| 167 | /* Chain containing all defined "maintenance print" subcommands. */ |
| 168 | |
| 169 | struct cmd_list_element *maintenanceprintlist; |
| 170 | |
| 171 | /* Chain containing all defined "maintenance check" subcommands. */ |
| 172 | |
| 173 | struct cmd_list_element *maintenancechecklist; |
| 174 | |
| 175 | struct cmd_list_element *setprintlist; |
| 176 | |
| 177 | struct cmd_list_element *showprintlist; |
| 178 | |
| 179 | struct cmd_list_element *setdebuglist; |
| 180 | |
| 181 | struct cmd_list_element *showdebuglist; |
| 182 | |
| 183 | struct cmd_list_element *setchecklist; |
| 184 | |
| 185 | struct cmd_list_element *showchecklist; |
| 186 | |
| 187 | /* Command tracing state. */ |
| 188 | |
| 189 | int source_verbose = 0; |
| 190 | int trace_commands = 0; |
| 191 | \f |
| 192 | /* 'script-extension' option support. */ |
| 193 | |
| 194 | static const char script_ext_off[] = "off"; |
| 195 | static const char script_ext_soft[] = "soft"; |
| 196 | static const char script_ext_strict[] = "strict"; |
| 197 | |
| 198 | static const char *const script_ext_enums[] = { |
| 199 | script_ext_off, |
| 200 | script_ext_soft, |
| 201 | script_ext_strict, |
| 202 | NULL |
| 203 | }; |
| 204 | |
| 205 | static const char *script_ext_mode = script_ext_soft; |
| 206 | \f |
| 207 | /* Utility used everywhere when at least one argument is needed and |
| 208 | none is supplied. */ |
| 209 | |
| 210 | void |
| 211 | error_no_arg (const char *why) |
| 212 | { |
| 213 | error (_("Argument required (%s)."), why); |
| 214 | } |
| 215 | |
| 216 | /* The "info" command is defined as a prefix, with allow_unknown = 0. |
| 217 | Therefore, its own definition is called only for "info" with no |
| 218 | args. */ |
| 219 | |
| 220 | static void |
| 221 | info_command (char *arg, int from_tty) |
| 222 | { |
| 223 | printf_unfiltered (_("\"info\" must be followed by " |
| 224 | "the name of an info command.\n")); |
| 225 | help_list (infolist, "info ", all_commands, gdb_stdout); |
| 226 | } |
| 227 | |
| 228 | /* The "show" command with no arguments shows all the settings. */ |
| 229 | |
| 230 | static void |
| 231 | show_command (char *arg, int from_tty) |
| 232 | { |
| 233 | cmd_show_list (showlist, from_tty, ""); |
| 234 | } |
| 235 | \f |
| 236 | /* Provide documentation on command or list given by COMMAND. FROM_TTY |
| 237 | is ignored. */ |
| 238 | |
| 239 | static void |
| 240 | help_command (char *command, int from_tty) |
| 241 | { |
| 242 | help_cmd (command, gdb_stdout); |
| 243 | } |
| 244 | \f |
| 245 | |
| 246 | /* Note: The "complete" command is used by Emacs to implement completion. |
| 247 | [Is that why this function writes output with *_unfiltered?] */ |
| 248 | |
| 249 | static void |
| 250 | complete_command (char *arg_entry, int from_tty) |
| 251 | { |
| 252 | const char *arg = arg_entry; |
| 253 | |
| 254 | dont_repeat (); |
| 255 | |
| 256 | if (max_completions == 0) |
| 257 | { |
| 258 | /* Only print this for non-mi frontends. An MI frontend may not |
| 259 | be able to handle this. */ |
| 260 | if (!current_uiout->is_mi_like_p ()) |
| 261 | { |
| 262 | printf_unfiltered (_("max-completions is zero," |
| 263 | " completion is disabled.\n")); |
| 264 | } |
| 265 | return; |
| 266 | } |
| 267 | |
| 268 | if (arg == NULL) |
| 269 | arg = ""; |
| 270 | |
| 271 | completion_tracker tracker_handle_brkchars; |
| 272 | completion_tracker tracker_handle_completions; |
| 273 | completion_tracker *tracker; |
| 274 | |
| 275 | int quote_char = '\0'; |
| 276 | const char *word; |
| 277 | |
| 278 | TRY |
| 279 | { |
| 280 | word = completion_find_completion_word (tracker_handle_brkchars, |
| 281 | arg, "e_char); |
| 282 | |
| 283 | /* Completers that provide a custom word point in the |
| 284 | handle_brkchars phase also compute their completions then. |
| 285 | Completers that leave the completion word handling to readline |
| 286 | must be called twice. */ |
| 287 | if (tracker_handle_brkchars.use_custom_word_point ()) |
| 288 | tracker = &tracker_handle_brkchars; |
| 289 | else |
| 290 | { |
| 291 | complete_line (tracker_handle_completions, word, arg, strlen (arg)); |
| 292 | tracker = &tracker_handle_completions; |
| 293 | } |
| 294 | } |
| 295 | CATCH (ex, RETURN_MASK_ALL) |
| 296 | { |
| 297 | return; |
| 298 | } |
| 299 | |
| 300 | std::string arg_prefix (arg, word - arg); |
| 301 | |
| 302 | completion_result result |
| 303 | = tracker->build_completion_result (word, word - arg, strlen (arg)); |
| 304 | |
| 305 | if (result.number_matches != 0) |
| 306 | { |
| 307 | if (result.number_matches == 1) |
| 308 | printf_unfiltered ("%s%s\n", arg_prefix.c_str (), result.match_list[0]); |
| 309 | else |
| 310 | { |
| 311 | result.sort_match_list (); |
| 312 | |
| 313 | for (size_t i = 0; i < result.number_matches; i++) |
| 314 | { |
| 315 | printf_unfiltered ("%s%s", |
| 316 | arg_prefix.c_str (), |
| 317 | result.match_list[i + 1]); |
| 318 | if (quote_char) |
| 319 | printf_unfiltered ("%c", quote_char); |
| 320 | printf_unfiltered ("\n"); |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | if (result.number_matches == max_completions) |
| 325 | { |
| 326 | /* ARG_PREFIX and WORD are included in the output so that emacs |
| 327 | will include the message in the output. */ |
| 328 | printf_unfiltered (_("%s%s %s\n"), |
| 329 | arg_prefix.c_str (), word, |
| 330 | get_max_completions_reached_message ()); |
| 331 | } |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | int |
| 336 | is_complete_command (struct cmd_list_element *c) |
| 337 | { |
| 338 | return cmd_cfunc_eq (c, complete_command); |
| 339 | } |
| 340 | |
| 341 | static void |
| 342 | show_version (const char *args, int from_tty) |
| 343 | { |
| 344 | print_gdb_version (gdb_stdout); |
| 345 | printf_filtered ("\n"); |
| 346 | } |
| 347 | |
| 348 | static void |
| 349 | show_configuration (const char *args, int from_tty) |
| 350 | { |
| 351 | print_gdb_configuration (gdb_stdout); |
| 352 | } |
| 353 | |
| 354 | /* Handle the quit command. */ |
| 355 | |
| 356 | void |
| 357 | quit_command (char *args, int from_tty) |
| 358 | { |
| 359 | int exit_code = 0; |
| 360 | |
| 361 | /* An optional expression may be used to cause gdb to terminate with |
| 362 | the value of that expression. */ |
| 363 | if (args) |
| 364 | { |
| 365 | struct value *val = parse_and_eval (args); |
| 366 | |
| 367 | exit_code = (int) value_as_long (val); |
| 368 | } |
| 369 | |
| 370 | if (!quit_confirm ()) |
| 371 | error (_("Not confirmed.")); |
| 372 | |
| 373 | query_if_trace_running (from_tty); |
| 374 | |
| 375 | quit_force (args ? &exit_code : NULL, from_tty); |
| 376 | } |
| 377 | |
| 378 | static void |
| 379 | pwd_command (char *args, int from_tty) |
| 380 | { |
| 381 | if (args) |
| 382 | error (_("The \"pwd\" command does not take an argument: %s"), args); |
| 383 | |
| 384 | gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0)); |
| 385 | |
| 386 | if (cwd == NULL) |
| 387 | error (_("Error finding name of working directory: %s"), |
| 388 | safe_strerror (errno)); |
| 389 | |
| 390 | if (strcmp (cwd.get (), current_directory) != 0) |
| 391 | printf_unfiltered (_("Working directory %s\n (canonically %s).\n"), |
| 392 | current_directory, cwd.get ()); |
| 393 | else |
| 394 | printf_unfiltered (_("Working directory %s.\n"), current_directory); |
| 395 | } |
| 396 | |
| 397 | void |
| 398 | cd_command (char *dir, int from_tty) |
| 399 | { |
| 400 | int len; |
| 401 | /* Found something other than leading repetitions of "/..". */ |
| 402 | int found_real_path; |
| 403 | char *p; |
| 404 | |
| 405 | /* If the new directory is absolute, repeat is a no-op; if relative, |
| 406 | repeat might be useful but is more likely to be a mistake. */ |
| 407 | dont_repeat (); |
| 408 | |
| 409 | gdb::unique_xmalloc_ptr<char> dir_holder |
| 410 | (tilde_expand (dir != NULL ? dir : "~")); |
| 411 | dir = dir_holder.get (); |
| 412 | |
| 413 | if (chdir (dir) < 0) |
| 414 | perror_with_name (dir); |
| 415 | |
| 416 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 417 | /* There's too much mess with DOSish names like "d:", "d:.", |
| 418 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, |
| 419 | simply get the canonicalized name of the current directory. */ |
| 420 | gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0)); |
| 421 | dir = cwd.get (); |
| 422 | #endif |
| 423 | |
| 424 | len = strlen (dir); |
| 425 | if (IS_DIR_SEPARATOR (dir[len - 1])) |
| 426 | { |
| 427 | /* Remove the trailing slash unless this is a root directory |
| 428 | (including a drive letter on non-Unix systems). */ |
| 429 | if (!(len == 1) /* "/" */ |
| 430 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 431 | && !(len == 3 && dir[1] == ':') /* "d:/" */ |
| 432 | #endif |
| 433 | ) |
| 434 | len--; |
| 435 | } |
| 436 | |
| 437 | dir_holder.reset (savestring (dir, len)); |
| 438 | if (IS_ABSOLUTE_PATH (dir_holder.get ())) |
| 439 | { |
| 440 | xfree (current_directory); |
| 441 | current_directory = dir_holder.release (); |
| 442 | } |
| 443 | else |
| 444 | { |
| 445 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) |
| 446 | current_directory = concat (current_directory, dir_holder.get (), |
| 447 | (char *) NULL); |
| 448 | else |
| 449 | current_directory = concat (current_directory, SLASH_STRING, |
| 450 | dir_holder.get (), (char *) NULL); |
| 451 | } |
| 452 | |
| 453 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ |
| 454 | |
| 455 | found_real_path = 0; |
| 456 | for (p = current_directory; *p;) |
| 457 | { |
| 458 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' |
| 459 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) |
| 460 | memmove (p, p + 2, strlen (p + 2) + 1); |
| 461 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' |
| 462 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) |
| 463 | { |
| 464 | if (found_real_path) |
| 465 | { |
| 466 | /* Search backwards for the directory just before the "/.." |
| 467 | and obliterate it and the "/..". */ |
| 468 | char *q = p; |
| 469 | |
| 470 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) |
| 471 | --q; |
| 472 | |
| 473 | if (q == current_directory) |
| 474 | /* current_directory is |
| 475 | a relative pathname ("can't happen"--leave it alone). */ |
| 476 | ++p; |
| 477 | else |
| 478 | { |
| 479 | memmove (q - 1, p + 3, strlen (p + 3) + 1); |
| 480 | p = q - 1; |
| 481 | } |
| 482 | } |
| 483 | else |
| 484 | /* We are dealing with leading repetitions of "/..", for |
| 485 | example "/../..", which is the Mach super-root. */ |
| 486 | p += 3; |
| 487 | } |
| 488 | else |
| 489 | { |
| 490 | found_real_path = 1; |
| 491 | ++p; |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | forget_cached_source_info (); |
| 496 | |
| 497 | if (from_tty) |
| 498 | pwd_command ((char *) 0, 1); |
| 499 | } |
| 500 | \f |
| 501 | /* Show the current value of the 'script-extension' option. */ |
| 502 | |
| 503 | static void |
| 504 | show_script_ext_mode (struct ui_file *file, int from_tty, |
| 505 | struct cmd_list_element *c, const char *value) |
| 506 | { |
| 507 | fprintf_filtered (file, |
| 508 | _("Script filename extension recognition is \"%s\".\n"), |
| 509 | value); |
| 510 | } |
| 511 | |
| 512 | /* Try to open SCRIPT_FILE. |
| 513 | If successful, the full path name is stored in *FULL_PATHP, |
| 514 | and the stream is returned. |
| 515 | If not successful, return NULL; errno is set for the last file |
| 516 | we tried to open. |
| 517 | |
| 518 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, |
| 519 | search for it in the source search path. */ |
| 520 | |
| 521 | gdb::optional<open_script> |
| 522 | find_and_open_script (const char *script_file, int search_path) |
| 523 | { |
| 524 | int fd; |
| 525 | int search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH; |
| 526 | gdb::optional<open_script> opened; |
| 527 | |
| 528 | gdb::unique_xmalloc_ptr<char> file (tilde_expand (script_file)); |
| 529 | |
| 530 | if (search_path) |
| 531 | search_flags |= OPF_SEARCH_IN_PATH; |
| 532 | |
| 533 | /* Search for and open 'file' on the search path used for source |
| 534 | files. Put the full location in *FULL_PATHP. */ |
| 535 | char *temp_path; |
| 536 | fd = openp (source_path, search_flags, |
| 537 | file.get (), O_RDONLY, &temp_path); |
| 538 | gdb::unique_xmalloc_ptr<char> full_path (temp_path); |
| 539 | |
| 540 | if (fd == -1) |
| 541 | return opened; |
| 542 | |
| 543 | FILE *result = fdopen (fd, FOPEN_RT); |
| 544 | if (result == NULL) |
| 545 | { |
| 546 | int save_errno = errno; |
| 547 | |
| 548 | close (fd); |
| 549 | errno = save_errno; |
| 550 | } |
| 551 | else |
| 552 | opened.emplace (gdb_file_up (result), std::move (full_path)); |
| 553 | |
| 554 | return opened; |
| 555 | } |
| 556 | |
| 557 | /* Load script FILE, which has already been opened as STREAM. |
| 558 | FILE_TO_OPEN is the form of FILE to use if one needs to open the file. |
| 559 | This is provided as FILE may have been found via the source search path. |
| 560 | An important thing to note here is that FILE may be a symlink to a file |
| 561 | with a different or non-existing suffix, and thus one cannot infer the |
| 562 | extension language from FILE_TO_OPEN. */ |
| 563 | |
| 564 | static void |
| 565 | source_script_from_stream (FILE *stream, const char *file, |
| 566 | const char *file_to_open) |
| 567 | { |
| 568 | if (script_ext_mode != script_ext_off) |
| 569 | { |
| 570 | const struct extension_language_defn *extlang |
| 571 | = get_ext_lang_of_file (file); |
| 572 | |
| 573 | if (extlang != NULL) |
| 574 | { |
| 575 | if (ext_lang_present_p (extlang)) |
| 576 | { |
| 577 | script_sourcer_func *sourcer |
| 578 | = ext_lang_script_sourcer (extlang); |
| 579 | |
| 580 | gdb_assert (sourcer != NULL); |
| 581 | sourcer (extlang, stream, file_to_open); |
| 582 | return; |
| 583 | } |
| 584 | else if (script_ext_mode == script_ext_soft) |
| 585 | { |
| 586 | /* Assume the file is a gdb script. |
| 587 | This is handled below. */ |
| 588 | } |
| 589 | else |
| 590 | throw_ext_lang_unsupported (extlang); |
| 591 | } |
| 592 | } |
| 593 | |
| 594 | script_from_file (stream, file); |
| 595 | } |
| 596 | |
| 597 | /* Worker to perform the "source" command. |
| 598 | Load script FILE. |
| 599 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, |
| 600 | search for it in the source search path. */ |
| 601 | |
| 602 | static void |
| 603 | source_script_with_search (const char *file, int from_tty, int search_path) |
| 604 | { |
| 605 | |
| 606 | if (file == NULL || *file == 0) |
| 607 | error (_("source command requires file name of file to source.")); |
| 608 | |
| 609 | gdb::optional<open_script> opened = find_and_open_script (file, search_path); |
| 610 | if (!opened) |
| 611 | { |
| 612 | /* The script wasn't found, or was otherwise inaccessible. |
| 613 | If the source command was invoked interactively, throw an |
| 614 | error. Otherwise (e.g. if it was invoked by a script), |
| 615 | just emit a warning, rather than cause an error. */ |
| 616 | if (from_tty) |
| 617 | perror_with_name (file); |
| 618 | else |
| 619 | { |
| 620 | perror_warning_with_name (file); |
| 621 | return; |
| 622 | } |
| 623 | } |
| 624 | |
| 625 | /* The python support reopens the file, so we need to pass full_path here |
| 626 | in case the file was found on the search path. It's useful to do this |
| 627 | anyway so that error messages show the actual file used. But only do |
| 628 | this if we (may have) used search_path, as printing the full path in |
| 629 | errors for the non-search case can be more noise than signal. */ |
| 630 | source_script_from_stream (opened->stream.get (), file, |
| 631 | search_path ? opened->full_path.get () : file); |
| 632 | } |
| 633 | |
| 634 | /* Wrapper around source_script_with_search to export it to main.c |
| 635 | for use in loading .gdbinit scripts. */ |
| 636 | |
| 637 | void |
| 638 | source_script (const char *file, int from_tty) |
| 639 | { |
| 640 | source_script_with_search (file, from_tty, 0); |
| 641 | } |
| 642 | |
| 643 | static void |
| 644 | source_command (const char *args, int from_tty) |
| 645 | { |
| 646 | const char *file = args; |
| 647 | int search_path = 0; |
| 648 | |
| 649 | scoped_restore save_source_verbose = make_scoped_restore (&source_verbose); |
| 650 | |
| 651 | /* -v causes the source command to run in verbose mode. |
| 652 | -s causes the file to be searched in the source search path, |
| 653 | even if the file name contains a '/'. |
| 654 | We still have to be able to handle filenames with spaces in a |
| 655 | backward compatible way, so buildargv is not appropriate. */ |
| 656 | |
| 657 | if (args) |
| 658 | { |
| 659 | while (args[0] != '\0') |
| 660 | { |
| 661 | /* Make sure leading white space does not break the |
| 662 | comparisons. */ |
| 663 | args = skip_spaces (args); |
| 664 | |
| 665 | if (args[0] != '-') |
| 666 | break; |
| 667 | |
| 668 | if (args[1] == 'v' && isspace (args[2])) |
| 669 | { |
| 670 | source_verbose = 1; |
| 671 | |
| 672 | /* Skip passed -v. */ |
| 673 | args = &args[3]; |
| 674 | } |
| 675 | else if (args[1] == 's' && isspace (args[2])) |
| 676 | { |
| 677 | search_path = 1; |
| 678 | |
| 679 | /* Skip passed -s. */ |
| 680 | args = &args[3]; |
| 681 | } |
| 682 | else |
| 683 | break; |
| 684 | } |
| 685 | |
| 686 | file = skip_spaces (args); |
| 687 | } |
| 688 | |
| 689 | source_script_with_search (file, from_tty, search_path); |
| 690 | } |
| 691 | |
| 692 | |
| 693 | static void |
| 694 | echo_command (char *text, int from_tty) |
| 695 | { |
| 696 | const char *p = text; |
| 697 | int c; |
| 698 | |
| 699 | if (text) |
| 700 | while ((c = *p++) != '\0') |
| 701 | { |
| 702 | if (c == '\\') |
| 703 | { |
| 704 | /* \ at end of argument is used after spaces |
| 705 | so they won't be lost. */ |
| 706 | if (*p == 0) |
| 707 | return; |
| 708 | |
| 709 | c = parse_escape (get_current_arch (), &p); |
| 710 | if (c >= 0) |
| 711 | printf_filtered ("%c", c); |
| 712 | } |
| 713 | else |
| 714 | printf_filtered ("%c", c); |
| 715 | } |
| 716 | |
| 717 | /* Force this output to appear now. */ |
| 718 | wrap_here (""); |
| 719 | gdb_flush (gdb_stdout); |
| 720 | } |
| 721 | |
| 722 | static void |
| 723 | shell_escape (const char *arg, int from_tty) |
| 724 | { |
| 725 | #if defined(CANT_FORK) || \ |
| 726 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) |
| 727 | /* If ARG is NULL, they want an inferior shell, but `system' just |
| 728 | reports if the shell is available when passed a NULL arg. */ |
| 729 | int rc = system (arg ? arg : ""); |
| 730 | |
| 731 | if (!arg) |
| 732 | arg = "inferior shell"; |
| 733 | |
| 734 | if (rc == -1) |
| 735 | { |
| 736 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, |
| 737 | safe_strerror (errno)); |
| 738 | gdb_flush (gdb_stderr); |
| 739 | } |
| 740 | else if (rc) |
| 741 | { |
| 742 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); |
| 743 | gdb_flush (gdb_stderr); |
| 744 | } |
| 745 | #ifdef GLOBAL_CURDIR |
| 746 | /* Make sure to return to the directory GDB thinks it is, in case |
| 747 | the shell command we just ran changed it. */ |
| 748 | chdir (current_directory); |
| 749 | #endif |
| 750 | #else /* Can fork. */ |
| 751 | int status, pid; |
| 752 | |
| 753 | if ((pid = vfork ()) == 0) |
| 754 | { |
| 755 | const char *p, *user_shell; |
| 756 | |
| 757 | close_most_fds (); |
| 758 | |
| 759 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) |
| 760 | user_shell = "/bin/sh"; |
| 761 | |
| 762 | /* Get the name of the shell for arg0. */ |
| 763 | p = lbasename (user_shell); |
| 764 | |
| 765 | if (!arg) |
| 766 | execl (user_shell, p, (char *) 0); |
| 767 | else |
| 768 | execl (user_shell, p, "-c", arg, (char *) 0); |
| 769 | |
| 770 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, |
| 771 | safe_strerror (errno)); |
| 772 | gdb_flush (gdb_stderr); |
| 773 | _exit (0177); |
| 774 | } |
| 775 | |
| 776 | if (pid != -1) |
| 777 | waitpid (pid, &status, 0); |
| 778 | else |
| 779 | error (_("Fork failed")); |
| 780 | #endif /* Can fork. */ |
| 781 | } |
| 782 | |
| 783 | /* Implementation of the "shell" command. */ |
| 784 | |
| 785 | static void |
| 786 | shell_command (char *arg, int from_tty) |
| 787 | { |
| 788 | shell_escape (arg, from_tty); |
| 789 | } |
| 790 | |
| 791 | static void |
| 792 | edit_command (char *arg, int from_tty) |
| 793 | { |
| 794 | struct symtab_and_line sal; |
| 795 | struct symbol *sym; |
| 796 | const char *editor; |
| 797 | char *p; |
| 798 | const char *fn; |
| 799 | |
| 800 | /* Pull in the current default source line if necessary. */ |
| 801 | if (arg == 0) |
| 802 | { |
| 803 | set_default_source_symtab_and_line (); |
| 804 | sal = get_current_source_symtab_and_line (); |
| 805 | } |
| 806 | |
| 807 | /* Bare "edit" edits file with present line. */ |
| 808 | |
| 809 | if (arg == 0) |
| 810 | { |
| 811 | if (sal.symtab == 0) |
| 812 | error (_("No default source file yet.")); |
| 813 | sal.line += get_lines_to_list () / 2; |
| 814 | } |
| 815 | else |
| 816 | { |
| 817 | char *arg1; |
| 818 | |
| 819 | /* Now should only be one argument -- decode it in SAL. */ |
| 820 | arg1 = arg; |
| 821 | event_location_up location = string_to_event_location (&arg1, |
| 822 | current_language); |
| 823 | std::vector<symtab_and_line> sals = decode_line_1 (location.get (), |
| 824 | DECODE_LINE_LIST_MODE, |
| 825 | NULL, NULL, 0); |
| 826 | |
| 827 | filter_sals (sals); |
| 828 | if (sals.empty ()) |
| 829 | { |
| 830 | /* C++ */ |
| 831 | return; |
| 832 | } |
| 833 | if (sals.size () > 1) |
| 834 | { |
| 835 | ambiguous_line_spec (sals, |
| 836 | _("Specified line is ambiguous:\n")); |
| 837 | return; |
| 838 | } |
| 839 | |
| 840 | sal = sals[0]; |
| 841 | |
| 842 | if (*arg1) |
| 843 | error (_("Junk at end of line specification.")); |
| 844 | |
| 845 | /* If line was specified by address, first print exactly which |
| 846 | line, and which file. In this case, sal.symtab == 0 means |
| 847 | address is outside of all known source files, not that user |
| 848 | failed to give a filename. */ |
| 849 | if (*arg == '*') |
| 850 | { |
| 851 | struct gdbarch *gdbarch; |
| 852 | |
| 853 | if (sal.symtab == 0) |
| 854 | error (_("No source file for address %s."), |
| 855 | paddress (get_current_arch (), sal.pc)); |
| 856 | |
| 857 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); |
| 858 | sym = find_pc_function (sal.pc); |
| 859 | if (sym) |
| 860 | printf_filtered ("%s is in %s (%s:%d).\n", |
| 861 | paddress (gdbarch, sal.pc), |
| 862 | SYMBOL_PRINT_NAME (sym), |
| 863 | symtab_to_filename_for_display (sal.symtab), |
| 864 | sal.line); |
| 865 | else |
| 866 | printf_filtered ("%s is at %s:%d.\n", |
| 867 | paddress (gdbarch, sal.pc), |
| 868 | symtab_to_filename_for_display (sal.symtab), |
| 869 | sal.line); |
| 870 | } |
| 871 | |
| 872 | /* If what was given does not imply a symtab, it must be an |
| 873 | undebuggable symbol which means no source code. */ |
| 874 | |
| 875 | if (sal.symtab == 0) |
| 876 | error (_("No line number known for %s."), arg); |
| 877 | } |
| 878 | |
| 879 | if ((editor = (char *) getenv ("EDITOR")) == NULL) |
| 880 | editor = "/bin/ex"; |
| 881 | |
| 882 | fn = symtab_to_fullname (sal.symtab); |
| 883 | |
| 884 | /* Quote the file name, in case it has whitespace or other special |
| 885 | characters. */ |
| 886 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); |
| 887 | shell_escape (p, from_tty); |
| 888 | xfree (p); |
| 889 | } |
| 890 | |
| 891 | static void |
| 892 | list_command (char *arg, int from_tty) |
| 893 | { |
| 894 | struct symbol *sym; |
| 895 | char *arg1; |
| 896 | int no_end = 1; |
| 897 | int dummy_end = 0; |
| 898 | int dummy_beg = 0; |
| 899 | int linenum_beg = 0; |
| 900 | char *p; |
| 901 | |
| 902 | /* Pull in the current default source line if necessary. */ |
| 903 | if (arg == NULL || ((arg[0] == '+' || arg[0] == '-') && arg[1] == '\0')) |
| 904 | { |
| 905 | set_default_source_symtab_and_line (); |
| 906 | symtab_and_line cursal = get_current_source_symtab_and_line (); |
| 907 | |
| 908 | /* If this is the first "list" since we've set the current |
| 909 | source line, center the listing around that line. */ |
| 910 | if (get_first_line_listed () == 0) |
| 911 | { |
| 912 | int first; |
| 913 | |
| 914 | first = std::max (cursal.line - get_lines_to_list () / 2, 1); |
| 915 | |
| 916 | /* A small special case --- if listing backwards, and we |
| 917 | should list only one line, list the preceding line, |
| 918 | instead of the exact line we've just shown after e.g., |
| 919 | stopping for a breakpoint. */ |
| 920 | if (arg != NULL && arg[0] == '-' |
| 921 | && get_lines_to_list () == 1 && first > 1) |
| 922 | first -= 1; |
| 923 | |
| 924 | print_source_lines (cursal.symtab, first, |
| 925 | first + get_lines_to_list (), 0); |
| 926 | } |
| 927 | |
| 928 | /* "l" or "l +" lists next ten lines. */ |
| 929 | else if (arg == NULL || arg[0] == '+') |
| 930 | print_source_lines (cursal.symtab, cursal.line, |
| 931 | cursal.line + get_lines_to_list (), 0); |
| 932 | |
| 933 | /* "l -" lists previous ten lines, the ones before the ten just |
| 934 | listed. */ |
| 935 | else if (arg[0] == '-') |
| 936 | { |
| 937 | if (get_first_line_listed () == 1) |
| 938 | error (_("Already at the start of %s."), |
| 939 | symtab_to_filename_for_display (cursal.symtab)); |
| 940 | print_source_lines (cursal.symtab, |
| 941 | std::max (get_first_line_listed () |
| 942 | - get_lines_to_list (), 1), |
| 943 | get_first_line_listed (), 0); |
| 944 | } |
| 945 | |
| 946 | return; |
| 947 | } |
| 948 | |
| 949 | /* Now if there is only one argument, decode it in SAL |
| 950 | and set NO_END. |
| 951 | If there are two arguments, decode them in SAL and SAL_END |
| 952 | and clear NO_END; however, if one of the arguments is blank, |
| 953 | set DUMMY_BEG or DUMMY_END to record that fact. */ |
| 954 | |
| 955 | if (!have_full_symbols () && !have_partial_symbols ()) |
| 956 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
| 957 | |
| 958 | std::vector<symtab_and_line> sals; |
| 959 | symtab_and_line sal, sal_end; |
| 960 | |
| 961 | arg1 = arg; |
| 962 | if (*arg1 == ',') |
| 963 | dummy_beg = 1; |
| 964 | else |
| 965 | { |
| 966 | event_location_up location = string_to_event_location (&arg1, |
| 967 | current_language); |
| 968 | sals = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, |
| 969 | NULL, NULL, 0); |
| 970 | filter_sals (sals); |
| 971 | if (sals.empty ()) |
| 972 | { |
| 973 | /* C++ */ |
| 974 | return; |
| 975 | } |
| 976 | |
| 977 | sal = sals[0]; |
| 978 | } |
| 979 | |
| 980 | /* Record whether the BEG arg is all digits. */ |
| 981 | |
| 982 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); |
| 983 | linenum_beg = (p == arg1); |
| 984 | |
| 985 | /* Save the range of the first argument, in case we need to let the |
| 986 | user know it was ambiguous. */ |
| 987 | const char *beg = arg; |
| 988 | size_t beg_len = arg1 - beg; |
| 989 | |
| 990 | while (*arg1 == ' ' || *arg1 == '\t') |
| 991 | arg1++; |
| 992 | if (*arg1 == ',') |
| 993 | { |
| 994 | no_end = 0; |
| 995 | if (sals.size () > 1) |
| 996 | { |
| 997 | ambiguous_line_spec (sals, |
| 998 | _("Specified first line '%.*s' is ambiguous:\n"), |
| 999 | (int) beg_len, beg); |
| 1000 | return; |
| 1001 | } |
| 1002 | arg1++; |
| 1003 | while (*arg1 == ' ' || *arg1 == '\t') |
| 1004 | arg1++; |
| 1005 | if (*arg1 == 0) |
| 1006 | dummy_end = 1; |
| 1007 | else |
| 1008 | { |
| 1009 | /* Save the last argument, in case we need to let the user |
| 1010 | know it was ambiguous. */ |
| 1011 | const char *end_arg = arg1; |
| 1012 | |
| 1013 | event_location_up location |
| 1014 | = string_to_event_location (&arg1, current_language); |
| 1015 | |
| 1016 | std::vector<symtab_and_line> sals_end |
| 1017 | = (dummy_beg |
| 1018 | ? decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, |
| 1019 | NULL, NULL, 0) |
| 1020 | : decode_line_1 (location.get (), DECODE_LINE_LIST_MODE, |
| 1021 | NULL, sal.symtab, sal.line)); |
| 1022 | |
| 1023 | filter_sals (sals_end); |
| 1024 | if (sals_end.empty ()) |
| 1025 | return; |
| 1026 | if (sals_end.size () > 1) |
| 1027 | { |
| 1028 | ambiguous_line_spec (sals_end, |
| 1029 | _("Specified last line '%s' is ambiguous:\n"), |
| 1030 | end_arg); |
| 1031 | return; |
| 1032 | } |
| 1033 | sal_end = sals_end[0]; |
| 1034 | } |
| 1035 | } |
| 1036 | |
| 1037 | if (*arg1) |
| 1038 | error (_("Junk at end of line specification.")); |
| 1039 | |
| 1040 | if (!no_end && !dummy_beg && !dummy_end |
| 1041 | && sal.symtab != sal_end.symtab) |
| 1042 | error (_("Specified first and last lines are in different files.")); |
| 1043 | if (dummy_beg && dummy_end) |
| 1044 | error (_("Two empty args do not say what lines to list.")); |
| 1045 | |
| 1046 | /* If line was specified by address, |
| 1047 | first print exactly which line, and which file. |
| 1048 | |
| 1049 | In this case, sal.symtab == 0 means address is outside of all |
| 1050 | known source files, not that user failed to give a filename. */ |
| 1051 | if (*arg == '*') |
| 1052 | { |
| 1053 | struct gdbarch *gdbarch; |
| 1054 | |
| 1055 | if (sal.symtab == 0) |
| 1056 | error (_("No source file for address %s."), |
| 1057 | paddress (get_current_arch (), sal.pc)); |
| 1058 | |
| 1059 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); |
| 1060 | sym = find_pc_function (sal.pc); |
| 1061 | if (sym) |
| 1062 | printf_filtered ("%s is in %s (%s:%d).\n", |
| 1063 | paddress (gdbarch, sal.pc), |
| 1064 | SYMBOL_PRINT_NAME (sym), |
| 1065 | symtab_to_filename_for_display (sal.symtab), sal.line); |
| 1066 | else |
| 1067 | printf_filtered ("%s is at %s:%d.\n", |
| 1068 | paddress (gdbarch, sal.pc), |
| 1069 | symtab_to_filename_for_display (sal.symtab), sal.line); |
| 1070 | } |
| 1071 | |
| 1072 | /* If line was not specified by just a line number, and it does not |
| 1073 | imply a symtab, it must be an undebuggable symbol which means no |
| 1074 | source code. */ |
| 1075 | |
| 1076 | if (!linenum_beg && sal.symtab == 0) |
| 1077 | error (_("No line number known for %s."), arg); |
| 1078 | |
| 1079 | /* If this command is repeated with RET, |
| 1080 | turn it into the no-arg variant. */ |
| 1081 | |
| 1082 | if (from_tty) |
| 1083 | *arg = 0; |
| 1084 | |
| 1085 | if (dummy_beg && sal_end.symtab == 0) |
| 1086 | error (_("No default source file yet. Do \"help list\".")); |
| 1087 | if (dummy_beg) |
| 1088 | print_source_lines (sal_end.symtab, |
| 1089 | std::max (sal_end.line - (get_lines_to_list () - 1), 1), |
| 1090 | sal_end.line + 1, 0); |
| 1091 | else if (sal.symtab == 0) |
| 1092 | error (_("No default source file yet. Do \"help list\".")); |
| 1093 | else if (no_end) |
| 1094 | { |
| 1095 | for (int i = 0; i < sals.size (); i++) |
| 1096 | { |
| 1097 | sal = sals[i]; |
| 1098 | int first_line = sal.line - get_lines_to_list () / 2; |
| 1099 | if (first_line < 1) |
| 1100 | first_line = 1; |
| 1101 | if (sals.size () > 1) |
| 1102 | print_sal_location (sal); |
| 1103 | print_source_lines (sal.symtab, |
| 1104 | first_line, |
| 1105 | first_line + get_lines_to_list (), |
| 1106 | 0); |
| 1107 | } |
| 1108 | } |
| 1109 | else |
| 1110 | print_source_lines (sal.symtab, sal.line, |
| 1111 | (dummy_end |
| 1112 | ? sal.line + get_lines_to_list () |
| 1113 | : sal_end.line + 1), |
| 1114 | 0); |
| 1115 | } |
| 1116 | |
| 1117 | /* Subroutine of disassemble_command to simplify it. |
| 1118 | Perform the disassembly. |
| 1119 | NAME is the name of the function if known, or NULL. |
| 1120 | [LOW,HIGH) are the range of addresses to disassemble. |
| 1121 | MIXED is non-zero to print source with the assembler. */ |
| 1122 | |
| 1123 | static void |
| 1124 | print_disassembly (struct gdbarch *gdbarch, const char *name, |
| 1125 | CORE_ADDR low, CORE_ADDR high, |
| 1126 | gdb_disassembly_flags flags) |
| 1127 | { |
| 1128 | #if defined(TUI) |
| 1129 | if (!tui_is_window_visible (DISASSEM_WIN)) |
| 1130 | #endif |
| 1131 | { |
| 1132 | printf_filtered ("Dump of assembler code "); |
| 1133 | if (name != NULL) |
| 1134 | printf_filtered ("for function %s:\n", name); |
| 1135 | else |
| 1136 | printf_filtered ("from %s to %s:\n", |
| 1137 | paddress (gdbarch, low), paddress (gdbarch, high)); |
| 1138 | |
| 1139 | /* Dump the specified range. */ |
| 1140 | gdb_disassembly (gdbarch, current_uiout, flags, -1, low, high); |
| 1141 | |
| 1142 | printf_filtered ("End of assembler dump.\n"); |
| 1143 | gdb_flush (gdb_stdout); |
| 1144 | } |
| 1145 | #if defined(TUI) |
| 1146 | else |
| 1147 | { |
| 1148 | tui_show_assembly (gdbarch, low); |
| 1149 | } |
| 1150 | #endif |
| 1151 | } |
| 1152 | |
| 1153 | /* Subroutine of disassemble_command to simplify it. |
| 1154 | Print a disassembly of the current function according to FLAGS. */ |
| 1155 | |
| 1156 | static void |
| 1157 | disassemble_current_function (gdb_disassembly_flags flags) |
| 1158 | { |
| 1159 | struct frame_info *frame; |
| 1160 | struct gdbarch *gdbarch; |
| 1161 | CORE_ADDR low, high, pc; |
| 1162 | const char *name; |
| 1163 | |
| 1164 | frame = get_selected_frame (_("No frame selected.")); |
| 1165 | gdbarch = get_frame_arch (frame); |
| 1166 | pc = get_frame_address_in_block (frame); |
| 1167 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
| 1168 | error (_("No function contains program counter for selected frame.")); |
| 1169 | #if defined(TUI) |
| 1170 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
| 1171 | `tui_version'. */ |
| 1172 | if (tui_active) |
| 1173 | /* FIXME: cagney/2004-02-07: This should be an observer. */ |
| 1174 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
| 1175 | #endif |
| 1176 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
| 1177 | |
| 1178 | print_disassembly (gdbarch, name, low, high, flags); |
| 1179 | } |
| 1180 | |
| 1181 | /* Dump a specified section of assembly code. |
| 1182 | |
| 1183 | Usage: |
| 1184 | disassemble [/mrs] |
| 1185 | - dump the assembly code for the function of the current pc |
| 1186 | disassemble [/mrs] addr |
| 1187 | - dump the assembly code for the function at ADDR |
| 1188 | disassemble [/mrs] low,high |
| 1189 | disassemble [/mrs] low,+length |
| 1190 | - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length) |
| 1191 | |
| 1192 | A /m modifier will include source code with the assembly in a |
| 1193 | "source centric" view. This view lists only the file of the first insn, |
| 1194 | even if other source files are involved (e.g., inlined functions), and |
| 1195 | the output is in source order, even with optimized code. This view is |
| 1196 | considered deprecated as it hasn't been useful in practice. |
| 1197 | |
| 1198 | A /r modifier will include raw instructions in hex with the assembly. |
| 1199 | |
| 1200 | A /s modifier will include source code with the assembly, like /m, with |
| 1201 | two important differences: |
| 1202 | 1) The output is still in pc address order. |
| 1203 | 2) File names and contents for all relevant source files are displayed. */ |
| 1204 | |
| 1205 | static void |
| 1206 | disassemble_command (char *arg, int from_tty) |
| 1207 | { |
| 1208 | struct gdbarch *gdbarch = get_current_arch (); |
| 1209 | CORE_ADDR low, high; |
| 1210 | const char *name; |
| 1211 | CORE_ADDR pc; |
| 1212 | gdb_disassembly_flags flags; |
| 1213 | const char *p; |
| 1214 | |
| 1215 | p = arg; |
| 1216 | name = NULL; |
| 1217 | flags = 0; |
| 1218 | |
| 1219 | if (p && *p == '/') |
| 1220 | { |
| 1221 | ++p; |
| 1222 | |
| 1223 | if (*p == '\0') |
| 1224 | error (_("Missing modifier.")); |
| 1225 | |
| 1226 | while (*p && ! isspace (*p)) |
| 1227 | { |
| 1228 | switch (*p++) |
| 1229 | { |
| 1230 | case 'm': |
| 1231 | flags |= DISASSEMBLY_SOURCE_DEPRECATED; |
| 1232 | break; |
| 1233 | case 'r': |
| 1234 | flags |= DISASSEMBLY_RAW_INSN; |
| 1235 | break; |
| 1236 | case 's': |
| 1237 | flags |= DISASSEMBLY_SOURCE; |
| 1238 | break; |
| 1239 | default: |
| 1240 | error (_("Invalid disassembly modifier.")); |
| 1241 | } |
| 1242 | } |
| 1243 | |
| 1244 | p = skip_spaces (p); |
| 1245 | } |
| 1246 | |
| 1247 | if ((flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
| 1248 | == (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE)) |
| 1249 | error (_("Cannot specify both /m and /s.")); |
| 1250 | |
| 1251 | if (! p || ! *p) |
| 1252 | { |
| 1253 | flags |= DISASSEMBLY_OMIT_FNAME; |
| 1254 | disassemble_current_function (flags); |
| 1255 | return; |
| 1256 | } |
| 1257 | |
| 1258 | pc = value_as_address (parse_to_comma_and_eval (&p)); |
| 1259 | if (p[0] == ',') |
| 1260 | ++p; |
| 1261 | if (p[0] == '\0') |
| 1262 | { |
| 1263 | /* One argument. */ |
| 1264 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
| 1265 | error (_("No function contains specified address.")); |
| 1266 | #if defined(TUI) |
| 1267 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
| 1268 | `tui_version'. */ |
| 1269 | if (tui_active) |
| 1270 | /* FIXME: cagney/2004-02-07: This should be an observer. */ |
| 1271 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
| 1272 | #endif |
| 1273 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
| 1274 | flags |= DISASSEMBLY_OMIT_FNAME; |
| 1275 | } |
| 1276 | else |
| 1277 | { |
| 1278 | /* Two arguments. */ |
| 1279 | int incl_flag = 0; |
| 1280 | low = pc; |
| 1281 | p = skip_spaces (p); |
| 1282 | if (p[0] == '+') |
| 1283 | { |
| 1284 | ++p; |
| 1285 | incl_flag = 1; |
| 1286 | } |
| 1287 | high = parse_and_eval_address (p); |
| 1288 | if (incl_flag) |
| 1289 | high += low; |
| 1290 | } |
| 1291 | |
| 1292 | print_disassembly (gdbarch, name, low, high, flags); |
| 1293 | } |
| 1294 | |
| 1295 | static void |
| 1296 | make_command (char *arg, int from_tty) |
| 1297 | { |
| 1298 | if (arg == 0) |
| 1299 | shell_escape ("make", from_tty); |
| 1300 | else |
| 1301 | { |
| 1302 | std::string cmd = std::string ("make ") + arg; |
| 1303 | |
| 1304 | shell_escape (cmd.c_str (), from_tty); |
| 1305 | } |
| 1306 | } |
| 1307 | |
| 1308 | static void |
| 1309 | show_user (const char *args, int from_tty) |
| 1310 | { |
| 1311 | struct cmd_list_element *c; |
| 1312 | extern struct cmd_list_element *cmdlist; |
| 1313 | |
| 1314 | if (args) |
| 1315 | { |
| 1316 | const char *comname = args; |
| 1317 | |
| 1318 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); |
| 1319 | if (!cli_user_command_p (c)) |
| 1320 | error (_("Not a user command.")); |
| 1321 | show_user_1 (c, "", args, gdb_stdout); |
| 1322 | } |
| 1323 | else |
| 1324 | { |
| 1325 | for (c = cmdlist; c; c = c->next) |
| 1326 | { |
| 1327 | if (cli_user_command_p (c) || c->prefixlist != NULL) |
| 1328 | show_user_1 (c, "", c->name, gdb_stdout); |
| 1329 | } |
| 1330 | } |
| 1331 | } |
| 1332 | |
| 1333 | /* Search through names of commands and documentations for a certain |
| 1334 | regular expression. */ |
| 1335 | |
| 1336 | static void |
| 1337 | apropos_command (char *searchstr, int from_tty) |
| 1338 | { |
| 1339 | if (searchstr == NULL) |
| 1340 | error (_("REGEXP string is empty")); |
| 1341 | |
| 1342 | compiled_regex pattern (searchstr, REG_ICASE, |
| 1343 | _("Error in regular expression")); |
| 1344 | |
| 1345 | apropos_cmd (gdb_stdout, cmdlist, pattern, ""); |
| 1346 | } |
| 1347 | |
| 1348 | /* Subroutine of alias_command to simplify it. |
| 1349 | Return the first N elements of ARGV flattened back to a string |
| 1350 | with a space separating each element. |
| 1351 | ARGV may not be NULL. |
| 1352 | This does not take care of quoting elements in case they contain spaces |
| 1353 | on purpose. */ |
| 1354 | |
| 1355 | static std::string |
| 1356 | argv_to_string (char **argv, int n) |
| 1357 | { |
| 1358 | int i; |
| 1359 | std::string result; |
| 1360 | |
| 1361 | gdb_assert (argv != NULL); |
| 1362 | gdb_assert (n >= 0 && n <= countargv (argv)); |
| 1363 | |
| 1364 | for (i = 0; i < n; ++i) |
| 1365 | { |
| 1366 | if (i > 0) |
| 1367 | result += " "; |
| 1368 | result += argv[i]; |
| 1369 | } |
| 1370 | |
| 1371 | return result; |
| 1372 | } |
| 1373 | |
| 1374 | /* Subroutine of alias_command to simplify it. |
| 1375 | Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */ |
| 1376 | |
| 1377 | static int |
| 1378 | valid_command_p (const char *command) |
| 1379 | { |
| 1380 | struct cmd_list_element *c; |
| 1381 | |
| 1382 | c = lookup_cmd_1 (& command, cmdlist, NULL, 1); |
| 1383 | |
| 1384 | if (c == NULL || c == (struct cmd_list_element *) -1) |
| 1385 | return FALSE; |
| 1386 | |
| 1387 | /* This is the slightly tricky part. |
| 1388 | lookup_cmd_1 will return a pointer to the last part of COMMAND |
| 1389 | to match, leaving COMMAND pointing at the remainder. */ |
| 1390 | while (*command == ' ' || *command == '\t') |
| 1391 | ++command; |
| 1392 | return *command == '\0'; |
| 1393 | } |
| 1394 | |
| 1395 | /* Called when "alias" was incorrectly used. */ |
| 1396 | |
| 1397 | static void |
| 1398 | alias_usage_error (void) |
| 1399 | { |
| 1400 | error (_("Usage: alias [-a] [--] ALIAS = COMMAND")); |
| 1401 | } |
| 1402 | |
| 1403 | /* Make an alias of an existing command. */ |
| 1404 | |
| 1405 | static void |
| 1406 | alias_command (char *args, int from_tty) |
| 1407 | { |
| 1408 | int i, alias_argc, command_argc; |
| 1409 | int abbrev_flag = 0; |
| 1410 | char *equals; |
| 1411 | const char *alias, *command; |
| 1412 | |
| 1413 | if (args == NULL || strchr (args, '=') == NULL) |
| 1414 | alias_usage_error (); |
| 1415 | |
| 1416 | equals = strchr (args, '='); |
| 1417 | std::string args2 (args, equals - args); |
| 1418 | |
| 1419 | gdb_argv built_alias_argv (args2.c_str ()); |
| 1420 | gdb_argv command_argv (equals + 1); |
| 1421 | |
| 1422 | char **alias_argv = built_alias_argv.get (); |
| 1423 | while (alias_argv[0] != NULL) |
| 1424 | { |
| 1425 | if (strcmp (alias_argv[0], "-a") == 0) |
| 1426 | { |
| 1427 | ++alias_argv; |
| 1428 | abbrev_flag = 1; |
| 1429 | } |
| 1430 | else if (strcmp (alias_argv[0], "--") == 0) |
| 1431 | { |
| 1432 | ++alias_argv; |
| 1433 | break; |
| 1434 | } |
| 1435 | else |
| 1436 | break; |
| 1437 | } |
| 1438 | |
| 1439 | if (alias_argv[0] == NULL || command_argv[0] == NULL |
| 1440 | || *alias_argv[0] == '\0' || *command_argv[0] == '\0') |
| 1441 | alias_usage_error (); |
| 1442 | |
| 1443 | for (i = 0; alias_argv[i] != NULL; ++i) |
| 1444 | { |
| 1445 | if (! valid_user_defined_cmd_name_p (alias_argv[i])) |
| 1446 | { |
| 1447 | if (i == 0) |
| 1448 | error (_("Invalid command name: %s"), alias_argv[i]); |
| 1449 | else |
| 1450 | error (_("Invalid command element name: %s"), alias_argv[i]); |
| 1451 | } |
| 1452 | } |
| 1453 | |
| 1454 | alias_argc = countargv (alias_argv); |
| 1455 | command_argc = command_argv.count (); |
| 1456 | |
| 1457 | /* COMMAND must exist. |
| 1458 | Reconstruct the command to remove any extraneous spaces, |
| 1459 | for better error messages. */ |
| 1460 | std::string command_string (argv_to_string (command_argv.get (), |
| 1461 | command_argc)); |
| 1462 | command = command_string.c_str (); |
| 1463 | if (! valid_command_p (command)) |
| 1464 | error (_("Invalid command to alias to: %s"), command); |
| 1465 | |
| 1466 | /* ALIAS must not exist. */ |
| 1467 | std::string alias_string (argv_to_string (alias_argv, alias_argc)); |
| 1468 | alias = alias_string.c_str (); |
| 1469 | if (valid_command_p (alias)) |
| 1470 | error (_("Alias already exists: %s"), alias); |
| 1471 | |
| 1472 | /* If ALIAS is one word, it is an alias for the entire COMMAND. |
| 1473 | Example: alias spe = set print elements |
| 1474 | |
| 1475 | Otherwise ALIAS and COMMAND must have the same number of words, |
| 1476 | and every word except the last must match; and the last word of |
| 1477 | ALIAS is made an alias of the last word of COMMAND. |
| 1478 | Example: alias set print elms = set pr elem |
| 1479 | Note that unambiguous abbreviations are allowed. */ |
| 1480 | |
| 1481 | if (alias_argc == 1) |
| 1482 | { |
| 1483 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ |
| 1484 | add_com_alias (xstrdup (alias_argv[0]), command, class_alias, |
| 1485 | abbrev_flag); |
| 1486 | } |
| 1487 | else |
| 1488 | { |
| 1489 | const char *alias_prefix, *command_prefix; |
| 1490 | struct cmd_list_element *c_alias, *c_command; |
| 1491 | |
| 1492 | if (alias_argc != command_argc) |
| 1493 | error (_("Mismatched command length between ALIAS and COMMAND.")); |
| 1494 | |
| 1495 | /* Create copies of ALIAS and COMMAND without the last word, |
| 1496 | and use that to verify the leading elements match. */ |
| 1497 | std::string alias_prefix_string (argv_to_string (alias_argv, |
| 1498 | alias_argc - 1)); |
| 1499 | std::string command_prefix_string (argv_to_string (alias_argv, |
| 1500 | command_argc - 1)); |
| 1501 | alias_prefix = alias_prefix_string.c_str (); |
| 1502 | command_prefix = command_prefix_string.c_str (); |
| 1503 | |
| 1504 | c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1); |
| 1505 | /* We've already tried to look up COMMAND. */ |
| 1506 | gdb_assert (c_command != NULL |
| 1507 | && c_command != (struct cmd_list_element *) -1); |
| 1508 | gdb_assert (c_command->prefixlist != NULL); |
| 1509 | c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1); |
| 1510 | if (c_alias != c_command) |
| 1511 | error (_("ALIAS and COMMAND prefixes do not match.")); |
| 1512 | |
| 1513 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ |
| 1514 | add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]), |
| 1515 | command_argv[command_argc - 1], |
| 1516 | class_alias, abbrev_flag, c_command->prefixlist); |
| 1517 | } |
| 1518 | } |
| 1519 | \f |
| 1520 | /* Print the file / line number / symbol name of the location |
| 1521 | specified by SAL. */ |
| 1522 | |
| 1523 | static void |
| 1524 | print_sal_location (const symtab_and_line &sal) |
| 1525 | { |
| 1526 | scoped_restore_current_program_space restore_pspace; |
| 1527 | set_current_program_space (sal.pspace); |
| 1528 | |
| 1529 | const char *sym_name = NULL; |
| 1530 | if (sal.symbol != NULL) |
| 1531 | sym_name = SYMBOL_PRINT_NAME (sal.symbol); |
| 1532 | printf_filtered (_("file: \"%s\", line number: %d, symbol: \"%s\"\n"), |
| 1533 | symtab_to_filename_for_display (sal.symtab), |
| 1534 | sal.line, sym_name != NULL ? sym_name : "???"); |
| 1535 | } |
| 1536 | |
| 1537 | /* Print a list of files and line numbers which a user may choose from |
| 1538 | in order to list a function which was specified ambiguously (as |
| 1539 | with `list classname::overloadedfuncname', for example). The SALS |
| 1540 | array provides the filenames and line numbers. FORMAT is a |
| 1541 | printf-style format string used to tell the user what was |
| 1542 | ambiguous. */ |
| 1543 | |
| 1544 | static void |
| 1545 | ambiguous_line_spec (gdb::array_view<const symtab_and_line> sals, |
| 1546 | const char *format, ...) |
| 1547 | { |
| 1548 | va_list ap; |
| 1549 | va_start (ap, format); |
| 1550 | vprintf_filtered (format, ap); |
| 1551 | va_end (ap); |
| 1552 | |
| 1553 | for (const auto &sal : sals) |
| 1554 | print_sal_location (sal); |
| 1555 | } |
| 1556 | |
| 1557 | /* Comparison function for filter_sals. Returns a qsort-style |
| 1558 | result. */ |
| 1559 | |
| 1560 | static int |
| 1561 | cmp_symtabs (const symtab_and_line &sala, const symtab_and_line &salb) |
| 1562 | { |
| 1563 | const char *dira = SYMTAB_DIRNAME (sala.symtab); |
| 1564 | const char *dirb = SYMTAB_DIRNAME (salb.symtab); |
| 1565 | int r; |
| 1566 | |
| 1567 | if (dira == NULL) |
| 1568 | { |
| 1569 | if (dirb != NULL) |
| 1570 | return -1; |
| 1571 | } |
| 1572 | else if (dirb == NULL) |
| 1573 | { |
| 1574 | if (dira != NULL) |
| 1575 | return 1; |
| 1576 | } |
| 1577 | else |
| 1578 | { |
| 1579 | r = filename_cmp (dira, dirb); |
| 1580 | if (r) |
| 1581 | return r; |
| 1582 | } |
| 1583 | |
| 1584 | r = filename_cmp (sala.symtab->filename, salb.symtab->filename); |
| 1585 | if (r) |
| 1586 | return r; |
| 1587 | |
| 1588 | if (sala.line < salb.line) |
| 1589 | return -1; |
| 1590 | return sala.line == salb.line ? 0 : 1; |
| 1591 | } |
| 1592 | |
| 1593 | /* Remove any SALs that do not match the current program space, or |
| 1594 | which appear to be "file:line" duplicates. */ |
| 1595 | |
| 1596 | static void |
| 1597 | filter_sals (std::vector<symtab_and_line> &sals) |
| 1598 | { |
| 1599 | /* Remove SALs that do not match. */ |
| 1600 | auto from = std::remove_if (sals.begin (), sals.end (), |
| 1601 | [&] (const symtab_and_line &sal) |
| 1602 | { return (sal.pspace != current_program_space || sal.symtab == NULL); }); |
| 1603 | |
| 1604 | /* Remove dups. */ |
| 1605 | std::sort (sals.begin (), from, |
| 1606 | [] (const symtab_and_line &sala, const symtab_and_line &salb) |
| 1607 | { return cmp_symtabs (sala, salb) < 0; }); |
| 1608 | |
| 1609 | from = std::unique (sals.begin (), from, |
| 1610 | [&] (const symtab_and_line &sala, |
| 1611 | const symtab_and_line &salb) |
| 1612 | { return cmp_symtabs (sala, salb) == 0; }); |
| 1613 | |
| 1614 | sals.erase (from, sals.end ()); |
| 1615 | } |
| 1616 | |
| 1617 | static void |
| 1618 | set_debug (char *arg, int from_tty) |
| 1619 | { |
| 1620 | printf_unfiltered (_("\"set debug\" must be followed by " |
| 1621 | "the name of a debug subcommand.\n")); |
| 1622 | help_list (setdebuglist, "set debug ", all_commands, gdb_stdout); |
| 1623 | } |
| 1624 | |
| 1625 | static void |
| 1626 | show_debug (char *args, int from_tty) |
| 1627 | { |
| 1628 | cmd_show_list (showdebuglist, from_tty, ""); |
| 1629 | } |
| 1630 | |
| 1631 | void |
| 1632 | init_cmd_lists (void) |
| 1633 | { |
| 1634 | max_user_call_depth = 1024; |
| 1635 | } |
| 1636 | |
| 1637 | static void |
| 1638 | show_info_verbose (struct ui_file *file, int from_tty, |
| 1639 | struct cmd_list_element *c, |
| 1640 | const char *value) |
| 1641 | { |
| 1642 | if (info_verbose) |
| 1643 | fprintf_filtered (file, |
| 1644 | _("Verbose printing of informational messages is %s.\n"), |
| 1645 | value); |
| 1646 | else |
| 1647 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); |
| 1648 | } |
| 1649 | |
| 1650 | static void |
| 1651 | show_history_expansion_p (struct ui_file *file, int from_tty, |
| 1652 | struct cmd_list_element *c, const char *value) |
| 1653 | { |
| 1654 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), |
| 1655 | value); |
| 1656 | } |
| 1657 | |
| 1658 | static void |
| 1659 | show_remote_debug (struct ui_file *file, int from_tty, |
| 1660 | struct cmd_list_element *c, const char *value) |
| 1661 | { |
| 1662 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), |
| 1663 | value); |
| 1664 | } |
| 1665 | |
| 1666 | static void |
| 1667 | show_remote_timeout (struct ui_file *file, int from_tty, |
| 1668 | struct cmd_list_element *c, const char *value) |
| 1669 | { |
| 1670 | fprintf_filtered (file, |
| 1671 | _("Timeout limit to wait for target to respond is %s.\n"), |
| 1672 | value); |
| 1673 | } |
| 1674 | |
| 1675 | static void |
| 1676 | show_max_user_call_depth (struct ui_file *file, int from_tty, |
| 1677 | struct cmd_list_element *c, const char *value) |
| 1678 | { |
| 1679 | fprintf_filtered (file, |
| 1680 | _("The max call depth for user-defined commands is %s.\n"), |
| 1681 | value); |
| 1682 | } |
| 1683 | |
| 1684 | void |
| 1685 | _initialize_cli_cmds (void) |
| 1686 | { |
| 1687 | struct cmd_list_element *c; |
| 1688 | |
| 1689 | /* Define the classes of commands. |
| 1690 | They will appear in the help list in alphabetical order. */ |
| 1691 | |
| 1692 | add_cmd ("internals", class_maintenance, _("\ |
| 1693 | Maintenance commands.\n\ |
| 1694 | Some gdb commands are provided just for use by gdb maintainers.\n\ |
| 1695 | These commands are subject to frequent change, and may not be as\n\ |
| 1696 | well documented as user commands."), |
| 1697 | &cmdlist); |
| 1698 | add_cmd ("obscure", class_obscure, _("Obscure features."), &cmdlist); |
| 1699 | add_cmd ("aliases", class_alias, |
| 1700 | _("Aliases of other commands."), &cmdlist); |
| 1701 | add_cmd ("user-defined", class_user, _("\ |
| 1702 | User-defined commands.\n\ |
| 1703 | The commands in this class are those defined by the user.\n\ |
| 1704 | Use the \"define\" command to define a command."), &cmdlist); |
| 1705 | add_cmd ("support", class_support, _("Support facilities."), &cmdlist); |
| 1706 | if (!dbx_commands) |
| 1707 | add_cmd ("status", class_info, _("Status inquiries."), &cmdlist); |
| 1708 | add_cmd ("files", class_files, _("Specifying and examining files."), |
| 1709 | &cmdlist); |
| 1710 | add_cmd ("breakpoints", class_breakpoint, |
| 1711 | _("Making program stop at certain points."), &cmdlist); |
| 1712 | add_cmd ("data", class_vars, _("Examining data."), &cmdlist); |
| 1713 | add_cmd ("stack", class_stack, _("\ |
| 1714 | Examining the stack.\n\ |
| 1715 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ |
| 1716 | counting from zero for the innermost (currently executing) frame.\n\n\ |
| 1717 | At any time gdb identifies one frame as the \"selected\" frame.\n\ |
| 1718 | Variable lookups are done with respect to the selected frame.\n\ |
| 1719 | When the program being debugged stops, gdb selects the innermost frame.\n\ |
| 1720 | The commands below can be used to select other frames by number or address."), |
| 1721 | &cmdlist); |
| 1722 | add_cmd ("running", class_run, _("Running the program."), &cmdlist); |
| 1723 | |
| 1724 | /* Define general commands. */ |
| 1725 | |
| 1726 | add_com ("pwd", class_files, pwd_command, _("\ |
| 1727 | Print working directory. This is used for your program as well.")); |
| 1728 | |
| 1729 | c = add_cmd ("cd", class_files, cd_command, _("\ |
| 1730 | Set working directory to DIR for debugger and program being debugged.\n\ |
| 1731 | The change does not take effect for the program being debugged\n\ |
| 1732 | until the next time it is started."), &cmdlist); |
| 1733 | set_cmd_completer (c, filename_completer); |
| 1734 | |
| 1735 | add_com ("echo", class_support, echo_command, _("\ |
| 1736 | Print a constant string. Give string as argument.\n\ |
| 1737 | C escape sequences may be used in the argument.\n\ |
| 1738 | No newline is added at the end of the argument;\n\ |
| 1739 | use \"\\n\" if you want a newline to be printed.\n\ |
| 1740 | Since leading and trailing whitespace are ignored in command arguments,\n\ |
| 1741 | if you want to print some you must use \"\\\" before leading whitespace\n\ |
| 1742 | to be printed or after trailing whitespace.")); |
| 1743 | |
| 1744 | add_setshow_enum_cmd ("script-extension", class_support, |
| 1745 | script_ext_enums, &script_ext_mode, _("\ |
| 1746 | Set mode for script filename extension recognition."), _("\ |
| 1747 | Show mode for script filename extension recognition."), _("\ |
| 1748 | off == no filename extension recognition (all sourced files are GDB scripts)\n\ |
| 1749 | soft == evaluate script according to filename extension, fallback to GDB script" |
| 1750 | "\n\ |
| 1751 | strict == evaluate script according to filename extension, error if not supported" |
| 1752 | ), |
| 1753 | NULL, |
| 1754 | show_script_ext_mode, |
| 1755 | &setlist, &showlist); |
| 1756 | |
| 1757 | add_com ("quit", class_support, quit_command, _("\ |
| 1758 | Exit gdb.\n\ |
| 1759 | Usage: quit [EXPR]\n\ |
| 1760 | The optional expression EXPR, if present, is evaluated and the result\n\ |
| 1761 | used as GDB's exit code. The default is zero.")); |
| 1762 | c = add_com ("help", class_support, help_command, |
| 1763 | _("Print list of commands.")); |
| 1764 | set_cmd_completer (c, command_completer); |
| 1765 | add_com_alias ("q", "quit", class_support, 1); |
| 1766 | add_com_alias ("h", "help", class_support, 1); |
| 1767 | |
| 1768 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ |
| 1769 | Set verbosity."), _("\ |
| 1770 | Show verbosity."), NULL, |
| 1771 | set_verbose, |
| 1772 | show_info_verbose, |
| 1773 | &setlist, &showlist); |
| 1774 | |
| 1775 | add_prefix_cmd ("history", class_support, set_history, |
| 1776 | _("Generic command for setting command history parameters."), |
| 1777 | &sethistlist, "set history ", 0, &setlist); |
| 1778 | add_prefix_cmd ("history", class_support, show_history, |
| 1779 | _("Generic command for showing command history parameters."), |
| 1780 | &showhistlist, "show history ", 0, &showlist); |
| 1781 | |
| 1782 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ |
| 1783 | Set history expansion on command input."), _("\ |
| 1784 | Show history expansion on command input."), _("\ |
| 1785 | Without an argument, history expansion is enabled."), |
| 1786 | NULL, |
| 1787 | show_history_expansion_p, |
| 1788 | &sethistlist, &showhistlist); |
| 1789 | |
| 1790 | add_prefix_cmd ("info", class_info, info_command, _("\ |
| 1791 | Generic command for showing things about the program being debugged."), |
| 1792 | &infolist, "info ", 0, &cmdlist); |
| 1793 | add_com_alias ("i", "info", class_info, 1); |
| 1794 | add_com_alias ("inf", "info", class_info, 1); |
| 1795 | |
| 1796 | add_com ("complete", class_obscure, complete_command, |
| 1797 | _("List the completions for the rest of the line as a command.")); |
| 1798 | |
| 1799 | add_prefix_cmd ("show", class_info, show_command, _("\ |
| 1800 | Generic command for showing things about the debugger."), |
| 1801 | &showlist, "show ", 0, &cmdlist); |
| 1802 | /* Another way to get at the same thing. */ |
| 1803 | add_info ("set", show_command, _("Show all GDB settings.")); |
| 1804 | |
| 1805 | add_cmd ("commands", no_set_class, show_commands, _("\ |
| 1806 | Show the history of commands you typed.\n\ |
| 1807 | You can supply a command number to start with, or a `+' to start after\n\ |
| 1808 | the previous command number shown."), |
| 1809 | &showlist); |
| 1810 | |
| 1811 | add_cmd ("version", no_set_class, show_version, |
| 1812 | _("Show what version of GDB this is."), &showlist); |
| 1813 | |
| 1814 | add_cmd ("configuration", no_set_class, show_configuration, |
| 1815 | _("Show how GDB was configured at build time."), &showlist); |
| 1816 | |
| 1817 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ |
| 1818 | Set debugging of remote protocol."), _("\ |
| 1819 | Show debugging of remote protocol."), _("\ |
| 1820 | When enabled, each packet sent or received with the remote target\n\ |
| 1821 | is displayed."), |
| 1822 | NULL, |
| 1823 | show_remote_debug, |
| 1824 | &setdebuglist, &showdebuglist); |
| 1825 | |
| 1826 | add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class, |
| 1827 | &remote_timeout, _("\ |
| 1828 | Set timeout limit to wait for target to respond."), _("\ |
| 1829 | Show timeout limit to wait for target to respond."), _("\ |
| 1830 | This value is used to set the time limit for gdb to wait for a response\n\ |
| 1831 | from the target."), |
| 1832 | NULL, |
| 1833 | show_remote_timeout, |
| 1834 | &setlist, &showlist); |
| 1835 | |
| 1836 | add_prefix_cmd ("debug", no_class, set_debug, |
| 1837 | _("Generic command for setting gdb debugging flags"), |
| 1838 | &setdebuglist, "set debug ", 0, &setlist); |
| 1839 | |
| 1840 | add_prefix_cmd ("debug", no_class, show_debug, |
| 1841 | _("Generic command for showing gdb debugging flags"), |
| 1842 | &showdebuglist, "show debug ", 0, &showlist); |
| 1843 | |
| 1844 | c = add_com ("shell", class_support, shell_command, _("\ |
| 1845 | Execute the rest of the line as a shell command.\n\ |
| 1846 | With no arguments, run an inferior shell.")); |
| 1847 | set_cmd_completer (c, filename_completer); |
| 1848 | |
| 1849 | c = add_com ("edit", class_files, edit_command, _("\ |
| 1850 | Edit specified file or function.\n\ |
| 1851 | With no argument, edits file containing most recent line listed.\n\ |
| 1852 | Editing targets can be specified in these ways:\n\ |
| 1853 | FILE:LINENUM, to edit at that line in that file,\n\ |
| 1854 | FUNCTION, to edit at the beginning of that function,\n\ |
| 1855 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
| 1856 | *ADDRESS, to edit at the line containing that address.\n\ |
| 1857 | Uses EDITOR environment variable contents as editor (or ex as default).")); |
| 1858 | |
| 1859 | c->completer = location_completer; |
| 1860 | |
| 1861 | add_com ("list", class_files, list_command, _("\ |
| 1862 | List specified function or line.\n\ |
| 1863 | With no argument, lists ten more lines after or around previous listing.\n\ |
| 1864 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ |
| 1865 | One argument specifies a line, and ten lines are listed around that line.\n\ |
| 1866 | Two arguments with comma between specify starting and ending lines to list.\n\ |
| 1867 | Lines can be specified in these ways:\n\ |
| 1868 | LINENUM, to list around that line in current file,\n\ |
| 1869 | FILE:LINENUM, to list around that line in that file,\n\ |
| 1870 | FUNCTION, to list around beginning of that function,\n\ |
| 1871 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
| 1872 | *ADDRESS, to list around the line containing that address.\n\ |
| 1873 | With two args, if one is empty, it stands for ten lines away from\n\ |
| 1874 | the other arg.\n\ |
| 1875 | \n\ |
| 1876 | By default, when a single location is given, display ten lines.\n\ |
| 1877 | This can be changed using \"set listsize\", and the current value\n\ |
| 1878 | can be shown using \"show listsize\".")); |
| 1879 | |
| 1880 | add_com_alias ("l", "list", class_files, 1); |
| 1881 | |
| 1882 | if (dbx_commands) |
| 1883 | add_com_alias ("file", "list", class_files, 1); |
| 1884 | |
| 1885 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ |
| 1886 | Disassemble a specified section of memory.\n\ |
| 1887 | Default is the function surrounding the pc of the selected frame.\n\ |
| 1888 | \n\ |
| 1889 | With a /m modifier, source lines are included (if available).\n\ |
| 1890 | This view is \"source centric\": the output is in source line order,\n\ |
| 1891 | regardless of any optimization that is present. Only the main source file\n\ |
| 1892 | is displayed, not those of, e.g., any inlined functions.\n\ |
| 1893 | This modifier hasn't proved useful in practice and is deprecated\n\ |
| 1894 | in favor of /s.\n\ |
| 1895 | \n\ |
| 1896 | With a /s modifier, source lines are included (if available).\n\ |
| 1897 | This differs from /m in two important respects:\n\ |
| 1898 | - the output is still in pc address order, and\n\ |
| 1899 | - file names and contents for all relevant source files are displayed.\n\ |
| 1900 | \n\ |
| 1901 | With a /r modifier, raw instructions in hex are included.\n\ |
| 1902 | \n\ |
| 1903 | With a single argument, the function surrounding that address is dumped.\n\ |
| 1904 | Two arguments (separated by a comma) are taken as a range of memory to dump,\n\ |
| 1905 | in the form of \"start,end\", or \"start,+length\".\n\ |
| 1906 | \n\ |
| 1907 | Note that the address is interpreted as an expression, not as a location\n\ |
| 1908 | like in the \"break\" command.\n\ |
| 1909 | So, for example, if you want to disassemble function bar in file foo.c\n\ |
| 1910 | you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\".")); |
| 1911 | set_cmd_completer (c, location_completer); |
| 1912 | |
| 1913 | add_com_alias ("!", "shell", class_support, 0); |
| 1914 | |
| 1915 | c = add_com ("make", class_support, make_command, _("\ |
| 1916 | Run the ``make'' program using the rest of the line as arguments.")); |
| 1917 | set_cmd_completer (c, filename_completer); |
| 1918 | add_cmd ("user", no_class, show_user, _("\ |
| 1919 | Show definitions of non-python/scheme user defined commands.\n\ |
| 1920 | Argument is the name of the user defined command.\n\ |
| 1921 | With no argument, show definitions of all user defined commands."), &showlist); |
| 1922 | add_com ("apropos", class_support, apropos_command, |
| 1923 | _("Search for commands matching a REGEXP")); |
| 1924 | |
| 1925 | add_setshow_uinteger_cmd ("max-user-call-depth", no_class, |
| 1926 | &max_user_call_depth, _("\ |
| 1927 | Set the max call depth for non-python/scheme user-defined commands."), _("\ |
| 1928 | Show the max call depth for non-python/scheme user-defined commands."), NULL, |
| 1929 | NULL, |
| 1930 | show_max_user_call_depth, |
| 1931 | &setlist, &showlist); |
| 1932 | |
| 1933 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ |
| 1934 | Set tracing of GDB CLI commands."), _("\ |
| 1935 | Show state of GDB CLI command tracing."), _("\ |
| 1936 | When 'on', each command is displayed as it is executed."), |
| 1937 | NULL, |
| 1938 | NULL, |
| 1939 | &setlist, &showlist); |
| 1940 | |
| 1941 | c = add_com ("alias", class_support, alias_command, _("\ |
| 1942 | Define a new command that is an alias of an existing command.\n\ |
| 1943 | Usage: alias [-a] [--] ALIAS = COMMAND\n\ |
| 1944 | ALIAS is the name of the alias command to create.\n\ |
| 1945 | COMMAND is the command being aliased to.\n\ |
| 1946 | If \"-a\" is specified, the command is an abbreviation,\n\ |
| 1947 | and will not appear in help command list output.\n\ |
| 1948 | \n\ |
| 1949 | Examples:\n\ |
| 1950 | Make \"spe\" an alias of \"set print elements\":\n\ |
| 1951 | alias spe = set print elements\n\ |
| 1952 | Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\ |
| 1953 | alias -a set print elms = set print elements")); |
| 1954 | } |
| 1955 | |
| 1956 | void |
| 1957 | init_cli_cmds (void) |
| 1958 | { |
| 1959 | struct cmd_list_element *c; |
| 1960 | char *source_help_text; |
| 1961 | |
| 1962 | source_help_text = xstrprintf (_("\ |
| 1963 | Read commands from a file named FILE.\n\ |
| 1964 | \n\ |
| 1965 | Usage: source [-s] [-v] FILE\n\ |
| 1966 | -s: search for the script in the source search path,\n\ |
| 1967 | even if FILE contains directories.\n\ |
| 1968 | -v: each command in FILE is echoed as it is executed.\n\ |
| 1969 | \n\ |
| 1970 | Note that the file \"%s\" is read automatically in this way\n\ |
| 1971 | when GDB is started."), gdbinit); |
| 1972 | c = add_cmd ("source", class_support, source_command, |
| 1973 | source_help_text, &cmdlist); |
| 1974 | set_cmd_completer (c, filename_completer); |
| 1975 | } |