| 1 | /* GDB CLI commands. |
| 2 | |
| 3 | Copyright (C) 2000-2013 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 "exceptions.h" |
| 22 | #include "arch-utils.h" |
| 23 | #include "dyn-string.h" |
| 24 | #include "readline/readline.h" |
| 25 | #include "readline/tilde.h" |
| 26 | #include "completer.h" |
| 27 | #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */ |
| 28 | #include "gdb_wait.h" /* For shell escape implementation. */ |
| 29 | #include "gdb_regex.h" /* Used by apropos_command. */ |
| 30 | #include "gdb_string.h" |
| 31 | #include "gdb_vfork.h" |
| 32 | #include "linespec.h" |
| 33 | #include "expression.h" |
| 34 | #include "frame.h" |
| 35 | #include "value.h" |
| 36 | #include "language.h" |
| 37 | #include "filenames.h" /* For DOSish file names. */ |
| 38 | #include "objfiles.h" |
| 39 | #include "source.h" |
| 40 | #include "disasm.h" |
| 41 | #include "tracepoint.h" |
| 42 | |
| 43 | #include "ui-out.h" |
| 44 | |
| 45 | #include "top.h" |
| 46 | #include "cli/cli-decode.h" |
| 47 | #include "cli/cli-script.h" |
| 48 | #include "cli/cli-setshow.h" |
| 49 | #include "cli/cli-cmds.h" |
| 50 | #include "cli/cli-utils.h" |
| 51 | |
| 52 | #include "python/python.h" |
| 53 | |
| 54 | #ifdef TUI |
| 55 | #include "tui/tui.h" /* For tui_active et.al. */ |
| 56 | #endif |
| 57 | |
| 58 | #include <fcntl.h> |
| 59 | |
| 60 | /* Prototypes for local command functions */ |
| 61 | |
| 62 | static void complete_command (char *, int); |
| 63 | |
| 64 | static void echo_command (char *, int); |
| 65 | |
| 66 | static void pwd_command (char *, int); |
| 67 | |
| 68 | static void show_version (char *, int); |
| 69 | |
| 70 | static void help_command (char *, int); |
| 71 | |
| 72 | static void show_command (char *, int); |
| 73 | |
| 74 | static void info_command (char *, int); |
| 75 | |
| 76 | static void show_debug (char *, int); |
| 77 | |
| 78 | static void set_debug (char *, int); |
| 79 | |
| 80 | static void show_user (char *, int); |
| 81 | |
| 82 | static void make_command (char *, int); |
| 83 | |
| 84 | static void shell_escape (char *, int); |
| 85 | |
| 86 | static void edit_command (char *, int); |
| 87 | |
| 88 | static void list_command (char *, int); |
| 89 | |
| 90 | /* Prototypes for local utility functions */ |
| 91 | |
| 92 | static void ambiguous_line_spec (struct symtabs_and_lines *); |
| 93 | |
| 94 | static void filter_sals (struct symtabs_and_lines *); |
| 95 | |
| 96 | \f |
| 97 | /* Limit the call depth of user-defined commands */ |
| 98 | unsigned int max_user_call_depth; |
| 99 | |
| 100 | /* Define all cmd_list_elements. */ |
| 101 | |
| 102 | /* Chain containing all defined commands. */ |
| 103 | |
| 104 | struct cmd_list_element *cmdlist; |
| 105 | |
| 106 | /* Chain containing all defined info subcommands. */ |
| 107 | |
| 108 | struct cmd_list_element *infolist; |
| 109 | |
| 110 | /* Chain containing all defined enable subcommands. */ |
| 111 | |
| 112 | struct cmd_list_element *enablelist; |
| 113 | |
| 114 | /* Chain containing all defined disable subcommands. */ |
| 115 | |
| 116 | struct cmd_list_element *disablelist; |
| 117 | |
| 118 | /* Chain containing all defined toggle subcommands. */ |
| 119 | |
| 120 | struct cmd_list_element *togglelist; |
| 121 | |
| 122 | /* Chain containing all defined stop subcommands. */ |
| 123 | |
| 124 | struct cmd_list_element *stoplist; |
| 125 | |
| 126 | /* Chain containing all defined delete subcommands. */ |
| 127 | |
| 128 | struct cmd_list_element *deletelist; |
| 129 | |
| 130 | /* Chain containing all defined detach subcommands. */ |
| 131 | |
| 132 | struct cmd_list_element *detachlist; |
| 133 | |
| 134 | /* Chain containing all defined kill subcommands. */ |
| 135 | |
| 136 | struct cmd_list_element *killlist; |
| 137 | |
| 138 | /* Chain containing all defined set subcommands */ |
| 139 | |
| 140 | struct cmd_list_element *setlist; |
| 141 | |
| 142 | /* Chain containing all defined unset subcommands */ |
| 143 | |
| 144 | struct cmd_list_element *unsetlist; |
| 145 | |
| 146 | /* Chain containing all defined show subcommands. */ |
| 147 | |
| 148 | struct cmd_list_element *showlist; |
| 149 | |
| 150 | /* Chain containing all defined \"set history\". */ |
| 151 | |
| 152 | struct cmd_list_element *sethistlist; |
| 153 | |
| 154 | /* Chain containing all defined \"show history\". */ |
| 155 | |
| 156 | struct cmd_list_element *showhistlist; |
| 157 | |
| 158 | /* Chain containing all defined \"unset history\". */ |
| 159 | |
| 160 | struct cmd_list_element *unsethistlist; |
| 161 | |
| 162 | /* Chain containing all defined maintenance subcommands. */ |
| 163 | |
| 164 | struct cmd_list_element *maintenancelist; |
| 165 | |
| 166 | /* Chain containing all defined "maintenance info" subcommands. */ |
| 167 | |
| 168 | struct cmd_list_element *maintenanceinfolist; |
| 169 | |
| 170 | /* Chain containing all defined "maintenance print" subcommands. */ |
| 171 | |
| 172 | struct cmd_list_element *maintenanceprintlist; |
| 173 | |
| 174 | struct cmd_list_element *setprintlist; |
| 175 | |
| 176 | struct cmd_list_element *showprintlist; |
| 177 | |
| 178 | struct cmd_list_element *setdebuglist; |
| 179 | |
| 180 | struct cmd_list_element *showdebuglist; |
| 181 | |
| 182 | struct cmd_list_element *setchecklist; |
| 183 | |
| 184 | struct cmd_list_element *showchecklist; |
| 185 | |
| 186 | /* Command tracing state. */ |
| 187 | |
| 188 | int source_verbose = 0; |
| 189 | int trace_commands = 0; |
| 190 | \f |
| 191 | /* 'script-extension' option support. */ |
| 192 | |
| 193 | static const char script_ext_off[] = "off"; |
| 194 | static const char script_ext_soft[] = "soft"; |
| 195 | static const char script_ext_strict[] = "strict"; |
| 196 | |
| 197 | static const char *const script_ext_enums[] = { |
| 198 | script_ext_off, |
| 199 | script_ext_soft, |
| 200 | script_ext_strict, |
| 201 | NULL |
| 202 | }; |
| 203 | |
| 204 | static const char *script_ext_mode = script_ext_soft; |
| 205 | \f |
| 206 | /* Utility used everywhere when at least one argument is needed and |
| 207 | none is supplied. */ |
| 208 | |
| 209 | void |
| 210 | error_no_arg (char *why) |
| 211 | { |
| 212 | error (_("Argument required (%s)."), why); |
| 213 | } |
| 214 | |
| 215 | /* The "info" command is defined as a prefix, with allow_unknown = 0. |
| 216 | Therefore, its own definition is called only for "info" with no |
| 217 | args. */ |
| 218 | |
| 219 | static void |
| 220 | info_command (char *arg, int from_tty) |
| 221 | { |
| 222 | printf_unfiltered (_("\"info\" must be followed by " |
| 223 | "the name of an info command.\n")); |
| 224 | help_list (infolist, "info ", -1, gdb_stdout); |
| 225 | } |
| 226 | |
| 227 | /* The "show" command with no arguments shows all the settings. */ |
| 228 | |
| 229 | static void |
| 230 | show_command (char *arg, int from_tty) |
| 231 | { |
| 232 | cmd_show_list (showlist, from_tty, ""); |
| 233 | } |
| 234 | \f |
| 235 | /* Provide documentation on command or list given by COMMAND. FROM_TTY |
| 236 | is ignored. */ |
| 237 | |
| 238 | static void |
| 239 | help_command (char *command, int from_tty) |
| 240 | { |
| 241 | help_cmd (command, gdb_stdout); |
| 242 | } |
| 243 | \f |
| 244 | /* The "complete" command is used by Emacs to implement completion. */ |
| 245 | |
| 246 | static void |
| 247 | complete_command (char *arg, int from_tty) |
| 248 | { |
| 249 | int argpoint; |
| 250 | char *point, *arg_prefix; |
| 251 | VEC (char_ptr) *completions; |
| 252 | |
| 253 | dont_repeat (); |
| 254 | |
| 255 | if (arg == NULL) |
| 256 | arg = ""; |
| 257 | argpoint = strlen (arg); |
| 258 | |
| 259 | /* complete_line assumes that its first argument is somewhere |
| 260 | within, and except for filenames at the beginning of, the word to |
| 261 | be completed. The following crude imitation of readline's |
| 262 | word-breaking tries to accomodate this. */ |
| 263 | point = arg + argpoint; |
| 264 | while (point > arg) |
| 265 | { |
| 266 | if (strchr (rl_completer_word_break_characters, point[-1]) != 0) |
| 267 | break; |
| 268 | point--; |
| 269 | } |
| 270 | |
| 271 | arg_prefix = alloca (point - arg + 1); |
| 272 | memcpy (arg_prefix, arg, point - arg); |
| 273 | arg_prefix[point - arg] = 0; |
| 274 | |
| 275 | completions = complete_line (point, arg, argpoint); |
| 276 | |
| 277 | if (completions) |
| 278 | { |
| 279 | int ix, size = VEC_length (char_ptr, completions); |
| 280 | char *item, *prev = NULL; |
| 281 | |
| 282 | qsort (VEC_address (char_ptr, completions), size, |
| 283 | sizeof (char *), compare_strings); |
| 284 | |
| 285 | /* We do extra processing here since we only want to print each |
| 286 | unique item once. */ |
| 287 | for (ix = 0; VEC_iterate (char_ptr, completions, ix, item); ++ix) |
| 288 | { |
| 289 | if (prev == NULL || strcmp (item, prev) != 0) |
| 290 | { |
| 291 | printf_unfiltered ("%s%s\n", arg_prefix, item); |
| 292 | xfree (prev); |
| 293 | prev = item; |
| 294 | } |
| 295 | else |
| 296 | xfree (item); |
| 297 | } |
| 298 | |
| 299 | xfree (prev); |
| 300 | VEC_free (char_ptr, completions); |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | int |
| 305 | is_complete_command (struct cmd_list_element *c) |
| 306 | { |
| 307 | return cmd_cfunc_eq (c, complete_command); |
| 308 | } |
| 309 | |
| 310 | static void |
| 311 | show_version (char *args, int from_tty) |
| 312 | { |
| 313 | print_gdb_version (gdb_stdout); |
| 314 | printf_filtered ("\n"); |
| 315 | } |
| 316 | |
| 317 | /* Handle the quit command. */ |
| 318 | |
| 319 | void |
| 320 | quit_command (char *args, int from_tty) |
| 321 | { |
| 322 | if (!quit_confirm ()) |
| 323 | error (_("Not confirmed.")); |
| 324 | |
| 325 | query_if_trace_running (from_tty); |
| 326 | |
| 327 | quit_force (args, from_tty); |
| 328 | } |
| 329 | |
| 330 | static void |
| 331 | pwd_command (char *args, int from_tty) |
| 332 | { |
| 333 | if (args) |
| 334 | error (_("The \"pwd\" command does not take an argument: %s"), args); |
| 335 | if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf))) |
| 336 | error (_("Error finding name of working directory: %s"), |
| 337 | safe_strerror (errno)); |
| 338 | |
| 339 | if (strcmp (gdb_dirbuf, current_directory) != 0) |
| 340 | printf_unfiltered (_("Working directory %s\n (canonically %s).\n"), |
| 341 | current_directory, gdb_dirbuf); |
| 342 | else |
| 343 | printf_unfiltered (_("Working directory %s.\n"), current_directory); |
| 344 | } |
| 345 | |
| 346 | void |
| 347 | cd_command (char *dir, int from_tty) |
| 348 | { |
| 349 | int len; |
| 350 | /* Found something other than leading repetitions of "/..". */ |
| 351 | int found_real_path; |
| 352 | char *p; |
| 353 | |
| 354 | /* If the new directory is absolute, repeat is a no-op; if relative, |
| 355 | repeat might be useful but is more likely to be a mistake. */ |
| 356 | dont_repeat (); |
| 357 | |
| 358 | if (dir == 0) |
| 359 | dir = "~"; |
| 360 | |
| 361 | dir = tilde_expand (dir); |
| 362 | make_cleanup (xfree, dir); |
| 363 | |
| 364 | if (chdir (dir) < 0) |
| 365 | perror_with_name (dir); |
| 366 | |
| 367 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 368 | /* There's too much mess with DOSish names like "d:", "d:.", |
| 369 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, |
| 370 | simply get the canonicalized name of the current directory. */ |
| 371 | dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); |
| 372 | #endif |
| 373 | |
| 374 | len = strlen (dir); |
| 375 | if (IS_DIR_SEPARATOR (dir[len - 1])) |
| 376 | { |
| 377 | /* Remove the trailing slash unless this is a root directory |
| 378 | (including a drive letter on non-Unix systems). */ |
| 379 | if (!(len == 1) /* "/" */ |
| 380 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 381 | && !(len == 3 && dir[1] == ':') /* "d:/" */ |
| 382 | #endif |
| 383 | ) |
| 384 | len--; |
| 385 | } |
| 386 | |
| 387 | dir = savestring (dir, len); |
| 388 | if (IS_ABSOLUTE_PATH (dir)) |
| 389 | current_directory = dir; |
| 390 | else |
| 391 | { |
| 392 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) |
| 393 | current_directory = concat (current_directory, dir, (char *)NULL); |
| 394 | else |
| 395 | current_directory = concat (current_directory, SLASH_STRING, |
| 396 | dir, (char *)NULL); |
| 397 | xfree (dir); |
| 398 | } |
| 399 | |
| 400 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ |
| 401 | |
| 402 | found_real_path = 0; |
| 403 | for (p = current_directory; *p;) |
| 404 | { |
| 405 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' |
| 406 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) |
| 407 | memmove (p, p + 2, strlen (p + 2) + 1); |
| 408 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' |
| 409 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) |
| 410 | { |
| 411 | if (found_real_path) |
| 412 | { |
| 413 | /* Search backwards for the directory just before the "/.." |
| 414 | and obliterate it and the "/..". */ |
| 415 | char *q = p; |
| 416 | |
| 417 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) |
| 418 | --q; |
| 419 | |
| 420 | if (q == current_directory) |
| 421 | /* current_directory is |
| 422 | a relative pathname ("can't happen"--leave it alone). */ |
| 423 | ++p; |
| 424 | else |
| 425 | { |
| 426 | memmove (q - 1, p + 3, strlen (p + 3) + 1); |
| 427 | p = q - 1; |
| 428 | } |
| 429 | } |
| 430 | else |
| 431 | /* We are dealing with leading repetitions of "/..", for |
| 432 | example "/../..", which is the Mach super-root. */ |
| 433 | p += 3; |
| 434 | } |
| 435 | else |
| 436 | { |
| 437 | found_real_path = 1; |
| 438 | ++p; |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | forget_cached_source_info (); |
| 443 | |
| 444 | if (from_tty) |
| 445 | pwd_command ((char *) 0, 1); |
| 446 | } |
| 447 | \f |
| 448 | /* Show the current value of the 'script-extension' option. */ |
| 449 | |
| 450 | static void |
| 451 | show_script_ext_mode (struct ui_file *file, int from_tty, |
| 452 | struct cmd_list_element *c, const char *value) |
| 453 | { |
| 454 | fprintf_filtered (file, |
| 455 | _("Script filename extension recognition is \"%s\".\n"), |
| 456 | value); |
| 457 | } |
| 458 | |
| 459 | /* Try to open SCRIPT_FILE. |
| 460 | If successful, the full path name is stored in *FULL_PATHP, |
| 461 | the stream is stored in *STREAMP, and return 1. |
| 462 | The caller is responsible for freeing *FULL_PATHP. |
| 463 | If not successful, return 0; errno is set for the last file |
| 464 | we tried to open. |
| 465 | |
| 466 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, |
| 467 | search for it in the source search path. */ |
| 468 | |
| 469 | int |
| 470 | find_and_open_script (const char *script_file, int search_path, |
| 471 | FILE **streamp, char **full_pathp) |
| 472 | { |
| 473 | char *file; |
| 474 | int fd; |
| 475 | struct cleanup *old_cleanups; |
| 476 | int search_flags = OPF_TRY_CWD_FIRST; |
| 477 | |
| 478 | file = tilde_expand (script_file); |
| 479 | old_cleanups = make_cleanup (xfree, file); |
| 480 | |
| 481 | if (search_path) |
| 482 | search_flags |= OPF_SEARCH_IN_PATH; |
| 483 | |
| 484 | /* Search for and open 'file' on the search path used for source |
| 485 | files. Put the full location in *FULL_PATHP. */ |
| 486 | fd = openp (source_path, search_flags, |
| 487 | file, O_RDONLY, full_pathp); |
| 488 | |
| 489 | if (fd == -1) |
| 490 | { |
| 491 | int save_errno = errno; |
| 492 | do_cleanups (old_cleanups); |
| 493 | errno = save_errno; |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | do_cleanups (old_cleanups); |
| 498 | |
| 499 | *streamp = fdopen (fd, FOPEN_RT); |
| 500 | if (*streamp == NULL) |
| 501 | { |
| 502 | int save_errno = errno; |
| 503 | |
| 504 | close (fd); |
| 505 | if (full_pathp) |
| 506 | xfree (*full_pathp); |
| 507 | errno = save_errno; |
| 508 | return 0; |
| 509 | } |
| 510 | |
| 511 | return 1; |
| 512 | } |
| 513 | |
| 514 | /* Load script FILE, which has already been opened as STREAM. */ |
| 515 | |
| 516 | static void |
| 517 | source_script_from_stream (FILE *stream, const char *file) |
| 518 | { |
| 519 | if (script_ext_mode != script_ext_off |
| 520 | && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py")) |
| 521 | { |
| 522 | volatile struct gdb_exception e; |
| 523 | |
| 524 | TRY_CATCH (e, RETURN_MASK_ERROR) |
| 525 | { |
| 526 | source_python_script (stream, file); |
| 527 | } |
| 528 | if (e.reason < 0) |
| 529 | { |
| 530 | /* Should we fallback to ye olde GDB script mode? */ |
| 531 | if (script_ext_mode == script_ext_soft |
| 532 | && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR) |
| 533 | { |
| 534 | fseek (stream, 0, SEEK_SET); |
| 535 | script_from_file (stream, (char*) file); |
| 536 | } |
| 537 | else |
| 538 | { |
| 539 | /* Nope, just punt. */ |
| 540 | throw_exception (e); |
| 541 | } |
| 542 | } |
| 543 | } |
| 544 | else |
| 545 | script_from_file (stream, file); |
| 546 | } |
| 547 | |
| 548 | /* Worker to perform the "source" command. |
| 549 | Load script FILE. |
| 550 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, |
| 551 | search for it in the source search path. */ |
| 552 | |
| 553 | static void |
| 554 | source_script_with_search (const char *file, int from_tty, int search_path) |
| 555 | { |
| 556 | FILE *stream; |
| 557 | char *full_path; |
| 558 | struct cleanup *old_cleanups; |
| 559 | |
| 560 | if (file == NULL || *file == 0) |
| 561 | error (_("source command requires file name of file to source.")); |
| 562 | |
| 563 | if (!find_and_open_script (file, search_path, &stream, &full_path)) |
| 564 | { |
| 565 | /* The script wasn't found, or was otherwise inaccessible. |
| 566 | If the source command was invoked interactively, throw an |
| 567 | error. Otherwise (e.g. if it was invoked by a script), |
| 568 | silently ignore the error. */ |
| 569 | if (from_tty) |
| 570 | perror_with_name (file); |
| 571 | else |
| 572 | return; |
| 573 | } |
| 574 | |
| 575 | old_cleanups = make_cleanup (xfree, full_path); |
| 576 | make_cleanup_fclose (stream); |
| 577 | /* The python support reopens the file, so we need to pass full_path here |
| 578 | in case the file was found on the search path. It's useful to do this |
| 579 | anyway so that error messages show the actual file used. But only do |
| 580 | this if we (may have) used search_path, as printing the full path in |
| 581 | errors for the non-search case can be more noise than signal. */ |
| 582 | source_script_from_stream (stream, search_path ? full_path : file); |
| 583 | do_cleanups (old_cleanups); |
| 584 | } |
| 585 | |
| 586 | /* Wrapper around source_script_with_search to export it to main.c |
| 587 | for use in loading .gdbinit scripts. */ |
| 588 | |
| 589 | void |
| 590 | source_script (char *file, int from_tty) |
| 591 | { |
| 592 | source_script_with_search (file, from_tty, 0); |
| 593 | } |
| 594 | |
| 595 | /* Return the source_verbose global variable to its previous state |
| 596 | on exit from the source command, by whatever means. */ |
| 597 | static void |
| 598 | source_verbose_cleanup (void *old_value) |
| 599 | { |
| 600 | source_verbose = *(int *)old_value; |
| 601 | xfree (old_value); |
| 602 | } |
| 603 | |
| 604 | static void |
| 605 | source_command (char *args, int from_tty) |
| 606 | { |
| 607 | struct cleanup *old_cleanups; |
| 608 | char *file = args; |
| 609 | int *old_source_verbose = xmalloc (sizeof(int)); |
| 610 | int search_path = 0; |
| 611 | |
| 612 | *old_source_verbose = source_verbose; |
| 613 | old_cleanups = make_cleanup (source_verbose_cleanup, |
| 614 | old_source_verbose); |
| 615 | |
| 616 | /* -v causes the source command to run in verbose mode. |
| 617 | -s causes the file to be searched in the source search path, |
| 618 | even if the file name contains a '/'. |
| 619 | We still have to be able to handle filenames with spaces in a |
| 620 | backward compatible way, so buildargv is not appropriate. */ |
| 621 | |
| 622 | if (args) |
| 623 | { |
| 624 | while (args[0] != '\0') |
| 625 | { |
| 626 | /* Make sure leading white space does not break the |
| 627 | comparisons. */ |
| 628 | args = skip_spaces (args); |
| 629 | |
| 630 | if (args[0] != '-') |
| 631 | break; |
| 632 | |
| 633 | if (args[1] == 'v' && isspace (args[2])) |
| 634 | { |
| 635 | source_verbose = 1; |
| 636 | |
| 637 | /* Skip passed -v. */ |
| 638 | args = &args[3]; |
| 639 | } |
| 640 | else if (args[1] == 's' && isspace (args[2])) |
| 641 | { |
| 642 | search_path = 1; |
| 643 | |
| 644 | /* Skip passed -s. */ |
| 645 | args = &args[3]; |
| 646 | } |
| 647 | else |
| 648 | break; |
| 649 | } |
| 650 | |
| 651 | file = skip_spaces (args); |
| 652 | } |
| 653 | |
| 654 | source_script_with_search (file, from_tty, search_path); |
| 655 | |
| 656 | do_cleanups (old_cleanups); |
| 657 | } |
| 658 | |
| 659 | |
| 660 | static void |
| 661 | echo_command (char *text, int from_tty) |
| 662 | { |
| 663 | char *p = text; |
| 664 | int c; |
| 665 | |
| 666 | if (text) |
| 667 | while ((c = *p++) != '\0') |
| 668 | { |
| 669 | if (c == '\\') |
| 670 | { |
| 671 | /* \ at end of argument is used after spaces |
| 672 | so they won't be lost. */ |
| 673 | if (*p == 0) |
| 674 | return; |
| 675 | |
| 676 | c = parse_escape (get_current_arch (), &p); |
| 677 | if (c >= 0) |
| 678 | printf_filtered ("%c", c); |
| 679 | } |
| 680 | else |
| 681 | printf_filtered ("%c", c); |
| 682 | } |
| 683 | |
| 684 | /* Force this output to appear now. */ |
| 685 | wrap_here (""); |
| 686 | gdb_flush (gdb_stdout); |
| 687 | } |
| 688 | |
| 689 | static void |
| 690 | shell_escape (char *arg, int from_tty) |
| 691 | { |
| 692 | #if defined(CANT_FORK) || \ |
| 693 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) |
| 694 | /* If ARG is NULL, they want an inferior shell, but `system' just |
| 695 | reports if the shell is available when passed a NULL arg. */ |
| 696 | int rc = system (arg ? arg : ""); |
| 697 | |
| 698 | if (!arg) |
| 699 | arg = "inferior shell"; |
| 700 | |
| 701 | if (rc == -1) |
| 702 | { |
| 703 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, |
| 704 | safe_strerror (errno)); |
| 705 | gdb_flush (gdb_stderr); |
| 706 | } |
| 707 | else if (rc) |
| 708 | { |
| 709 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); |
| 710 | gdb_flush (gdb_stderr); |
| 711 | } |
| 712 | #ifdef GLOBAL_CURDIR |
| 713 | /* Make sure to return to the directory GDB thinks it is, in case |
| 714 | the shell command we just ran changed it. */ |
| 715 | chdir (current_directory); |
| 716 | #endif |
| 717 | #else /* Can fork. */ |
| 718 | int status, pid; |
| 719 | |
| 720 | if ((pid = vfork ()) == 0) |
| 721 | { |
| 722 | const char *p, *user_shell; |
| 723 | |
| 724 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) |
| 725 | user_shell = "/bin/sh"; |
| 726 | |
| 727 | /* Get the name of the shell for arg0. */ |
| 728 | p = lbasename (user_shell); |
| 729 | |
| 730 | if (!arg) |
| 731 | execl (user_shell, p, (char *) 0); |
| 732 | else |
| 733 | execl (user_shell, p, "-c", arg, (char *) 0); |
| 734 | |
| 735 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, |
| 736 | safe_strerror (errno)); |
| 737 | gdb_flush (gdb_stderr); |
| 738 | _exit (0177); |
| 739 | } |
| 740 | |
| 741 | if (pid != -1) |
| 742 | waitpid (pid, &status, 0); |
| 743 | else |
| 744 | error (_("Fork failed")); |
| 745 | #endif /* Can fork. */ |
| 746 | } |
| 747 | |
| 748 | static void |
| 749 | edit_command (char *arg, int from_tty) |
| 750 | { |
| 751 | struct symtabs_and_lines sals; |
| 752 | struct symtab_and_line sal; |
| 753 | struct symbol *sym; |
| 754 | char *arg1; |
| 755 | char *editor; |
| 756 | char *p; |
| 757 | const char *fn; |
| 758 | |
| 759 | /* Pull in the current default source line if necessary. */ |
| 760 | if (arg == 0) |
| 761 | { |
| 762 | set_default_source_symtab_and_line (); |
| 763 | sal = get_current_source_symtab_and_line (); |
| 764 | } |
| 765 | |
| 766 | /* Bare "edit" edits file with present line. */ |
| 767 | |
| 768 | if (arg == 0) |
| 769 | { |
| 770 | if (sal.symtab == 0) |
| 771 | error (_("No default source file yet.")); |
| 772 | sal.line += get_lines_to_list () / 2; |
| 773 | } |
| 774 | else |
| 775 | { |
| 776 | /* Now should only be one argument -- decode it in SAL. */ |
| 777 | |
| 778 | arg1 = arg; |
| 779 | sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0); |
| 780 | |
| 781 | filter_sals (&sals); |
| 782 | if (! sals.nelts) |
| 783 | { |
| 784 | /* C++ */ |
| 785 | return; |
| 786 | } |
| 787 | if (sals.nelts > 1) |
| 788 | { |
| 789 | ambiguous_line_spec (&sals); |
| 790 | xfree (sals.sals); |
| 791 | return; |
| 792 | } |
| 793 | |
| 794 | sal = sals.sals[0]; |
| 795 | xfree (sals.sals); |
| 796 | |
| 797 | if (*arg1) |
| 798 | error (_("Junk at end of line specification.")); |
| 799 | |
| 800 | /* If line was specified by address, first print exactly which |
| 801 | line, and which file. In this case, sal.symtab == 0 means |
| 802 | address is outside of all known source files, not that user |
| 803 | failed to give a filename. */ |
| 804 | if (*arg == '*') |
| 805 | { |
| 806 | struct gdbarch *gdbarch; |
| 807 | |
| 808 | if (sal.symtab == 0) |
| 809 | /* FIXME-32x64--assumes sal.pc fits in long. */ |
| 810 | error (_("No source file for address %s."), |
| 811 | hex_string ((unsigned long) sal.pc)); |
| 812 | |
| 813 | gdbarch = get_objfile_arch (sal.symtab->objfile); |
| 814 | sym = find_pc_function (sal.pc); |
| 815 | if (sym) |
| 816 | printf_filtered ("%s is in %s (%s:%d).\n", |
| 817 | paddress (gdbarch, sal.pc), |
| 818 | SYMBOL_PRINT_NAME (sym), |
| 819 | symtab_to_filename_for_display (sal.symtab), |
| 820 | sal.line); |
| 821 | else |
| 822 | printf_filtered ("%s is at %s:%d.\n", |
| 823 | paddress (gdbarch, sal.pc), |
| 824 | symtab_to_filename_for_display (sal.symtab), |
| 825 | sal.line); |
| 826 | } |
| 827 | |
| 828 | /* If what was given does not imply a symtab, it must be an |
| 829 | undebuggable symbol which means no source code. */ |
| 830 | |
| 831 | if (sal.symtab == 0) |
| 832 | error (_("No line number known for %s."), arg); |
| 833 | } |
| 834 | |
| 835 | if ((editor = (char *) getenv ("EDITOR")) == NULL) |
| 836 | editor = "/bin/ex"; |
| 837 | |
| 838 | fn = symtab_to_fullname (sal.symtab); |
| 839 | |
| 840 | /* Quote the file name, in case it has whitespace or other special |
| 841 | characters. */ |
| 842 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); |
| 843 | shell_escape (p, from_tty); |
| 844 | xfree (p); |
| 845 | } |
| 846 | |
| 847 | static void |
| 848 | list_command (char *arg, int from_tty) |
| 849 | { |
| 850 | struct symtabs_and_lines sals, sals_end; |
| 851 | struct symtab_and_line sal = { 0 }; |
| 852 | struct symtab_and_line sal_end = { 0 }; |
| 853 | struct symtab_and_line cursal = { 0 }; |
| 854 | struct symbol *sym; |
| 855 | char *arg1; |
| 856 | int no_end = 1; |
| 857 | int dummy_end = 0; |
| 858 | int dummy_beg = 0; |
| 859 | int linenum_beg = 0; |
| 860 | char *p; |
| 861 | |
| 862 | /* Pull in the current default source line if necessary. */ |
| 863 | if (arg == 0 || arg[0] == '+' || arg[0] == '-') |
| 864 | { |
| 865 | set_default_source_symtab_and_line (); |
| 866 | cursal = get_current_source_symtab_and_line (); |
| 867 | } |
| 868 | |
| 869 | /* "l" or "l +" lists next ten lines. */ |
| 870 | |
| 871 | if (arg == 0 || strcmp (arg, "+") == 0) |
| 872 | { |
| 873 | print_source_lines (cursal.symtab, cursal.line, |
| 874 | cursal.line + get_lines_to_list (), 0); |
| 875 | return; |
| 876 | } |
| 877 | |
| 878 | /* "l -" lists previous ten lines, the ones before the ten just |
| 879 | listed. */ |
| 880 | if (strcmp (arg, "-") == 0) |
| 881 | { |
| 882 | print_source_lines (cursal.symtab, |
| 883 | max (get_first_line_listed () |
| 884 | - get_lines_to_list (), 1), |
| 885 | get_first_line_listed (), 0); |
| 886 | return; |
| 887 | } |
| 888 | |
| 889 | /* Now if there is only one argument, decode it in SAL |
| 890 | and set NO_END. |
| 891 | If there are two arguments, decode them in SAL and SAL_END |
| 892 | and clear NO_END; however, if one of the arguments is blank, |
| 893 | set DUMMY_BEG or DUMMY_END to record that fact. */ |
| 894 | |
| 895 | if (!have_full_symbols () && !have_partial_symbols ()) |
| 896 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
| 897 | |
| 898 | arg1 = arg; |
| 899 | if (*arg1 == ',') |
| 900 | dummy_beg = 1; |
| 901 | else |
| 902 | { |
| 903 | sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0); |
| 904 | |
| 905 | filter_sals (&sals); |
| 906 | if (!sals.nelts) |
| 907 | return; /* C++ */ |
| 908 | if (sals.nelts > 1) |
| 909 | { |
| 910 | ambiguous_line_spec (&sals); |
| 911 | xfree (sals.sals); |
| 912 | return; |
| 913 | } |
| 914 | |
| 915 | sal = sals.sals[0]; |
| 916 | xfree (sals.sals); |
| 917 | } |
| 918 | |
| 919 | /* Record whether the BEG arg is all digits. */ |
| 920 | |
| 921 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); |
| 922 | linenum_beg = (p == arg1); |
| 923 | |
| 924 | while (*arg1 == ' ' || *arg1 == '\t') |
| 925 | arg1++; |
| 926 | if (*arg1 == ',') |
| 927 | { |
| 928 | no_end = 0; |
| 929 | arg1++; |
| 930 | while (*arg1 == ' ' || *arg1 == '\t') |
| 931 | arg1++; |
| 932 | if (*arg1 == 0) |
| 933 | dummy_end = 1; |
| 934 | else |
| 935 | { |
| 936 | if (dummy_beg) |
| 937 | sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0); |
| 938 | else |
| 939 | sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, |
| 940 | sal.symtab, sal.line); |
| 941 | filter_sals (&sals_end); |
| 942 | if (sals_end.nelts == 0) |
| 943 | return; |
| 944 | if (sals_end.nelts > 1) |
| 945 | { |
| 946 | ambiguous_line_spec (&sals_end); |
| 947 | xfree (sals_end.sals); |
| 948 | return; |
| 949 | } |
| 950 | sal_end = sals_end.sals[0]; |
| 951 | xfree (sals_end.sals); |
| 952 | } |
| 953 | } |
| 954 | |
| 955 | if (*arg1) |
| 956 | error (_("Junk at end of line specification.")); |
| 957 | |
| 958 | if (!no_end && !dummy_beg && !dummy_end |
| 959 | && sal.symtab != sal_end.symtab) |
| 960 | error (_("Specified start and end are in different files.")); |
| 961 | if (dummy_beg && dummy_end) |
| 962 | error (_("Two empty args do not say what lines to list.")); |
| 963 | |
| 964 | /* If line was specified by address, |
| 965 | first print exactly which line, and which file. |
| 966 | |
| 967 | In this case, sal.symtab == 0 means address is outside of all |
| 968 | known source files, not that user failed to give a filename. */ |
| 969 | if (*arg == '*') |
| 970 | { |
| 971 | struct gdbarch *gdbarch; |
| 972 | |
| 973 | if (sal.symtab == 0) |
| 974 | /* FIXME-32x64--assumes sal.pc fits in long. */ |
| 975 | error (_("No source file for address %s."), |
| 976 | hex_string ((unsigned long) sal.pc)); |
| 977 | |
| 978 | gdbarch = get_objfile_arch (sal.symtab->objfile); |
| 979 | sym = find_pc_function (sal.pc); |
| 980 | if (sym) |
| 981 | printf_filtered ("%s is in %s (%s:%d).\n", |
| 982 | paddress (gdbarch, sal.pc), |
| 983 | SYMBOL_PRINT_NAME (sym), |
| 984 | symtab_to_filename_for_display (sal.symtab), sal.line); |
| 985 | else |
| 986 | printf_filtered ("%s is at %s:%d.\n", |
| 987 | paddress (gdbarch, sal.pc), |
| 988 | symtab_to_filename_for_display (sal.symtab), sal.line); |
| 989 | } |
| 990 | |
| 991 | /* If line was not specified by just a line number, and it does not |
| 992 | imply a symtab, it must be an undebuggable symbol which means no |
| 993 | source code. */ |
| 994 | |
| 995 | if (!linenum_beg && sal.symtab == 0) |
| 996 | error (_("No line number known for %s."), arg); |
| 997 | |
| 998 | /* If this command is repeated with RET, |
| 999 | turn it into the no-arg variant. */ |
| 1000 | |
| 1001 | if (from_tty) |
| 1002 | *arg = 0; |
| 1003 | |
| 1004 | if (dummy_beg && sal_end.symtab == 0) |
| 1005 | error (_("No default source file yet. Do \"help list\".")); |
| 1006 | if (dummy_beg) |
| 1007 | print_source_lines (sal_end.symtab, |
| 1008 | max (sal_end.line - (get_lines_to_list () - 1), 1), |
| 1009 | sal_end.line + 1, 0); |
| 1010 | else if (sal.symtab == 0) |
| 1011 | error (_("No default source file yet. Do \"help list\".")); |
| 1012 | else if (no_end) |
| 1013 | { |
| 1014 | int first_line = sal.line - get_lines_to_list () / 2; |
| 1015 | |
| 1016 | if (first_line < 1) first_line = 1; |
| 1017 | |
| 1018 | print_source_lines (sal.symtab, |
| 1019 | first_line, |
| 1020 | first_line + get_lines_to_list (), |
| 1021 | 0); |
| 1022 | } |
| 1023 | else |
| 1024 | print_source_lines (sal.symtab, sal.line, |
| 1025 | (dummy_end |
| 1026 | ? sal.line + get_lines_to_list () |
| 1027 | : sal_end.line + 1), |
| 1028 | 0); |
| 1029 | } |
| 1030 | |
| 1031 | /* Subroutine of disassemble_command to simplify it. |
| 1032 | Perform the disassembly. |
| 1033 | NAME is the name of the function if known, or NULL. |
| 1034 | [LOW,HIGH) are the range of addresses to disassemble. |
| 1035 | MIXED is non-zero to print source with the assembler. */ |
| 1036 | |
| 1037 | static void |
| 1038 | print_disassembly (struct gdbarch *gdbarch, const char *name, |
| 1039 | CORE_ADDR low, CORE_ADDR high, int flags) |
| 1040 | { |
| 1041 | #if defined(TUI) |
| 1042 | if (!tui_is_window_visible (DISASSEM_WIN)) |
| 1043 | #endif |
| 1044 | { |
| 1045 | printf_filtered ("Dump of assembler code "); |
| 1046 | if (name != NULL) |
| 1047 | printf_filtered ("for function %s:\n", name); |
| 1048 | else |
| 1049 | printf_filtered ("from %s to %s:\n", |
| 1050 | paddress (gdbarch, low), paddress (gdbarch, high)); |
| 1051 | |
| 1052 | /* Dump the specified range. */ |
| 1053 | gdb_disassembly (gdbarch, current_uiout, 0, flags, -1, low, high); |
| 1054 | |
| 1055 | printf_filtered ("End of assembler dump.\n"); |
| 1056 | gdb_flush (gdb_stdout); |
| 1057 | } |
| 1058 | #if defined(TUI) |
| 1059 | else |
| 1060 | { |
| 1061 | tui_show_assembly (gdbarch, low); |
| 1062 | } |
| 1063 | #endif |
| 1064 | } |
| 1065 | |
| 1066 | /* Subroutine of disassemble_command to simplify it. |
| 1067 | Print a disassembly of the current function according to FLAGS. */ |
| 1068 | |
| 1069 | static void |
| 1070 | disassemble_current_function (int flags) |
| 1071 | { |
| 1072 | struct frame_info *frame; |
| 1073 | struct gdbarch *gdbarch; |
| 1074 | CORE_ADDR low, high, pc; |
| 1075 | const char *name; |
| 1076 | |
| 1077 | frame = get_selected_frame (_("No frame selected.")); |
| 1078 | gdbarch = get_frame_arch (frame); |
| 1079 | pc = get_frame_address_in_block (frame); |
| 1080 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
| 1081 | error (_("No function contains program counter for selected frame.")); |
| 1082 | #if defined(TUI) |
| 1083 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
| 1084 | `tui_version'. */ |
| 1085 | if (tui_active) |
| 1086 | /* FIXME: cagney/2004-02-07: This should be an observer. */ |
| 1087 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
| 1088 | #endif |
| 1089 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
| 1090 | |
| 1091 | print_disassembly (gdbarch, name, low, high, flags); |
| 1092 | } |
| 1093 | |
| 1094 | /* Dump a specified section of assembly code. |
| 1095 | |
| 1096 | Usage: |
| 1097 | disassemble [/mr] |
| 1098 | - dump the assembly code for the function of the current pc |
| 1099 | disassemble [/mr] addr |
| 1100 | - dump the assembly code for the function at ADDR |
| 1101 | disassemble [/mr] low,high |
| 1102 | disassemble [/mr] low,+length |
| 1103 | - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length) |
| 1104 | |
| 1105 | A /m modifier will include source code with the assembly. |
| 1106 | A /r modifier will include raw instructions in hex with the assembly. */ |
| 1107 | |
| 1108 | static void |
| 1109 | disassemble_command (char *arg, int from_tty) |
| 1110 | { |
| 1111 | struct gdbarch *gdbarch = get_current_arch (); |
| 1112 | CORE_ADDR low, high; |
| 1113 | const char *name; |
| 1114 | CORE_ADDR pc; |
| 1115 | int flags; |
| 1116 | const char *p; |
| 1117 | |
| 1118 | p = arg; |
| 1119 | name = NULL; |
| 1120 | flags = 0; |
| 1121 | |
| 1122 | if (p && *p == '/') |
| 1123 | { |
| 1124 | ++p; |
| 1125 | |
| 1126 | if (*p == '\0') |
| 1127 | error (_("Missing modifier.")); |
| 1128 | |
| 1129 | while (*p && ! isspace (*p)) |
| 1130 | { |
| 1131 | switch (*p++) |
| 1132 | { |
| 1133 | case 'm': |
| 1134 | flags |= DISASSEMBLY_SOURCE; |
| 1135 | break; |
| 1136 | case 'r': |
| 1137 | flags |= DISASSEMBLY_RAW_INSN; |
| 1138 | break; |
| 1139 | default: |
| 1140 | error (_("Invalid disassembly modifier.")); |
| 1141 | } |
| 1142 | } |
| 1143 | |
| 1144 | p = skip_spaces_const (p); |
| 1145 | } |
| 1146 | |
| 1147 | if (! p || ! *p) |
| 1148 | { |
| 1149 | flags |= DISASSEMBLY_OMIT_FNAME; |
| 1150 | disassemble_current_function (flags); |
| 1151 | return; |
| 1152 | } |
| 1153 | |
| 1154 | pc = value_as_address (parse_to_comma_and_eval (&p)); |
| 1155 | if (p[0] == ',') |
| 1156 | ++p; |
| 1157 | if (p[0] == '\0') |
| 1158 | { |
| 1159 | /* One argument. */ |
| 1160 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
| 1161 | error (_("No function contains specified address.")); |
| 1162 | #if defined(TUI) |
| 1163 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
| 1164 | `tui_version'. */ |
| 1165 | if (tui_active) |
| 1166 | /* FIXME: cagney/2004-02-07: This should be an observer. */ |
| 1167 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
| 1168 | #endif |
| 1169 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
| 1170 | flags |= DISASSEMBLY_OMIT_FNAME; |
| 1171 | } |
| 1172 | else |
| 1173 | { |
| 1174 | /* Two arguments. */ |
| 1175 | int incl_flag = 0; |
| 1176 | low = pc; |
| 1177 | p = skip_spaces_const (p); |
| 1178 | if (p[0] == '+') |
| 1179 | { |
| 1180 | ++p; |
| 1181 | incl_flag = 1; |
| 1182 | } |
| 1183 | high = parse_and_eval_address (p); |
| 1184 | if (incl_flag) |
| 1185 | high += low; |
| 1186 | } |
| 1187 | |
| 1188 | print_disassembly (gdbarch, name, low, high, flags); |
| 1189 | } |
| 1190 | |
| 1191 | static void |
| 1192 | make_command (char *arg, int from_tty) |
| 1193 | { |
| 1194 | char *p; |
| 1195 | |
| 1196 | if (arg == 0) |
| 1197 | p = "make"; |
| 1198 | else |
| 1199 | { |
| 1200 | p = xmalloc (sizeof ("make ") + strlen (arg)); |
| 1201 | strcpy (p, "make "); |
| 1202 | strcpy (p + sizeof ("make ") - 1, arg); |
| 1203 | } |
| 1204 | |
| 1205 | shell_escape (p, from_tty); |
| 1206 | } |
| 1207 | |
| 1208 | static void |
| 1209 | show_user (char *args, int from_tty) |
| 1210 | { |
| 1211 | struct cmd_list_element *c; |
| 1212 | extern struct cmd_list_element *cmdlist; |
| 1213 | |
| 1214 | if (args) |
| 1215 | { |
| 1216 | const char *comname = args; |
| 1217 | |
| 1218 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); |
| 1219 | /* c->user_commands would be NULL if it's a python command. */ |
| 1220 | if (c->class != class_user || !c->user_commands) |
| 1221 | error (_("Not a user command.")); |
| 1222 | show_user_1 (c, "", args, gdb_stdout); |
| 1223 | } |
| 1224 | else |
| 1225 | { |
| 1226 | for (c = cmdlist; c; c = c->next) |
| 1227 | { |
| 1228 | if (c->class == class_user || c->prefixlist != NULL) |
| 1229 | show_user_1 (c, "", c->name, gdb_stdout); |
| 1230 | } |
| 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | /* Search through names of commands and documentations for a certain |
| 1235 | regular expression. */ |
| 1236 | |
| 1237 | static void |
| 1238 | apropos_command (char *searchstr, int from_tty) |
| 1239 | { |
| 1240 | regex_t pattern; |
| 1241 | int code; |
| 1242 | |
| 1243 | if (searchstr == NULL) |
| 1244 | error (_("REGEXP string is empty")); |
| 1245 | |
| 1246 | code = regcomp (&pattern, searchstr, REG_ICASE); |
| 1247 | if (code == 0) |
| 1248 | { |
| 1249 | struct cleanup *cleanups; |
| 1250 | |
| 1251 | cleanups = make_regfree_cleanup (&pattern); |
| 1252 | apropos_cmd (gdb_stdout, cmdlist, &pattern, ""); |
| 1253 | do_cleanups (cleanups); |
| 1254 | } |
| 1255 | else |
| 1256 | { |
| 1257 | char *err = get_regcomp_error (code, &pattern); |
| 1258 | |
| 1259 | make_cleanup (xfree, err); |
| 1260 | error (_("Error in regular expression: %s"), err); |
| 1261 | } |
| 1262 | } |
| 1263 | |
| 1264 | /* Subroutine of alias_command to simplify it. |
| 1265 | Return the first N elements of ARGV flattened back to a string |
| 1266 | with a space separating each element. |
| 1267 | ARGV may not be NULL. |
| 1268 | This does not take care of quoting elements in case they contain spaces |
| 1269 | on purpose. */ |
| 1270 | |
| 1271 | static dyn_string_t |
| 1272 | argv_to_dyn_string (char **argv, int n) |
| 1273 | { |
| 1274 | int i; |
| 1275 | dyn_string_t result = dyn_string_new (10); |
| 1276 | |
| 1277 | gdb_assert (argv != NULL); |
| 1278 | gdb_assert (n >= 0 && n <= countargv (argv)); |
| 1279 | |
| 1280 | for (i = 0; i < n; ++i) |
| 1281 | { |
| 1282 | if (i > 0) |
| 1283 | dyn_string_append_char (result, ' '); |
| 1284 | dyn_string_append_cstr (result, argv[i]); |
| 1285 | } |
| 1286 | |
| 1287 | return result; |
| 1288 | } |
| 1289 | |
| 1290 | /* Subroutine of alias_command to simplify it. |
| 1291 | Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */ |
| 1292 | |
| 1293 | static int |
| 1294 | valid_command_p (const char *command) |
| 1295 | { |
| 1296 | struct cmd_list_element *c; |
| 1297 | |
| 1298 | c = lookup_cmd_1 (& command, cmdlist, NULL, 1); |
| 1299 | |
| 1300 | if (c == NULL || c == (struct cmd_list_element *) -1) |
| 1301 | return FALSE; |
| 1302 | |
| 1303 | /* This is the slightly tricky part. |
| 1304 | lookup_cmd_1 will return a pointer to the last part of COMMAND |
| 1305 | to match, leaving COMMAND pointing at the remainder. */ |
| 1306 | while (*command == ' ' || *command == '\t') |
| 1307 | ++command; |
| 1308 | return *command == '\0'; |
| 1309 | } |
| 1310 | |
| 1311 | /* Make an alias of an existing command. */ |
| 1312 | |
| 1313 | static void |
| 1314 | alias_command (char *args, int from_tty) |
| 1315 | { |
| 1316 | int i, alias_argc, command_argc; |
| 1317 | int abbrev_flag = 0; |
| 1318 | char *args2, *equals, *alias, *command; |
| 1319 | char **alias_argv, **command_argv; |
| 1320 | dyn_string_t alias_dyn_string, command_dyn_string; |
| 1321 | static const char usage[] = N_("Usage: alias [-a] [--] ALIAS = COMMAND"); |
| 1322 | |
| 1323 | if (args == NULL || strchr (args, '=') == NULL) |
| 1324 | error (_(usage)); |
| 1325 | |
| 1326 | args2 = xstrdup (args); |
| 1327 | make_cleanup (xfree, args2); |
| 1328 | equals = strchr (args2, '='); |
| 1329 | *equals = '\0'; |
| 1330 | alias_argv = gdb_buildargv (args2); |
| 1331 | make_cleanup_freeargv (alias_argv); |
| 1332 | command_argv = gdb_buildargv (equals + 1); |
| 1333 | make_cleanup_freeargv (command_argv); |
| 1334 | |
| 1335 | for (i = 0; alias_argv[i] != NULL; ) |
| 1336 | { |
| 1337 | if (strcmp (alias_argv[i], "-a") == 0) |
| 1338 | { |
| 1339 | ++alias_argv; |
| 1340 | abbrev_flag = 1; |
| 1341 | } |
| 1342 | else if (strcmp (alias_argv[i], "--") == 0) |
| 1343 | { |
| 1344 | ++alias_argv; |
| 1345 | break; |
| 1346 | } |
| 1347 | else |
| 1348 | break; |
| 1349 | } |
| 1350 | |
| 1351 | if (alias_argv[0] == NULL || command_argv[0] == NULL |
| 1352 | || *alias_argv[0] == '\0' || *command_argv[0] == '\0') |
| 1353 | error (_(usage)); |
| 1354 | |
| 1355 | for (i = 0; alias_argv[i] != NULL; ++i) |
| 1356 | { |
| 1357 | if (! valid_user_defined_cmd_name_p (alias_argv[i])) |
| 1358 | { |
| 1359 | if (i == 0) |
| 1360 | error (_("Invalid command name: %s"), alias_argv[i]); |
| 1361 | else |
| 1362 | error (_("Invalid command element name: %s"), alias_argv[i]); |
| 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | alias_argc = countargv (alias_argv); |
| 1367 | command_argc = countargv (command_argv); |
| 1368 | |
| 1369 | /* COMMAND must exist. |
| 1370 | Reconstruct the command to remove any extraneous spaces, |
| 1371 | for better error messages. */ |
| 1372 | command_dyn_string = argv_to_dyn_string (command_argv, command_argc); |
| 1373 | make_cleanup_dyn_string_delete (command_dyn_string); |
| 1374 | command = dyn_string_buf (command_dyn_string); |
| 1375 | if (! valid_command_p (command)) |
| 1376 | error (_("Invalid command to alias to: %s"), command); |
| 1377 | |
| 1378 | /* ALIAS must not exist. */ |
| 1379 | alias_dyn_string = argv_to_dyn_string (alias_argv, alias_argc); |
| 1380 | make_cleanup_dyn_string_delete (alias_dyn_string); |
| 1381 | alias = dyn_string_buf (alias_dyn_string); |
| 1382 | if (valid_command_p (alias)) |
| 1383 | error (_("Alias already exists: %s"), alias); |
| 1384 | |
| 1385 | /* If ALIAS is one word, it is an alias for the entire COMMAND. |
| 1386 | Example: alias spe = set print elements |
| 1387 | |
| 1388 | Otherwise ALIAS and COMMAND must have the same number of words, |
| 1389 | and every word except the last must match; and the last word of |
| 1390 | ALIAS is made an alias of the last word of COMMAND. |
| 1391 | Example: alias set print elms = set pr elem |
| 1392 | Note that unambiguous abbreviations are allowed. */ |
| 1393 | |
| 1394 | if (alias_argc == 1) |
| 1395 | { |
| 1396 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ |
| 1397 | add_com_alias (xstrdup (alias_argv[0]), command, class_alias, |
| 1398 | abbrev_flag); |
| 1399 | } |
| 1400 | else |
| 1401 | { |
| 1402 | dyn_string_t alias_prefix_dyn_string, command_prefix_dyn_string; |
| 1403 | const char *alias_prefix, *command_prefix; |
| 1404 | struct cmd_list_element *c_alias, *c_command; |
| 1405 | |
| 1406 | if (alias_argc != command_argc) |
| 1407 | error (_("Mismatched command length between ALIAS and COMMAND.")); |
| 1408 | |
| 1409 | /* Create copies of ALIAS and COMMAND without the last word, |
| 1410 | and use that to verify the leading elements match. */ |
| 1411 | alias_prefix_dyn_string = |
| 1412 | argv_to_dyn_string (alias_argv, alias_argc - 1); |
| 1413 | make_cleanup_dyn_string_delete (alias_prefix_dyn_string); |
| 1414 | command_prefix_dyn_string = |
| 1415 | argv_to_dyn_string (alias_argv, command_argc - 1); |
| 1416 | make_cleanup_dyn_string_delete (command_prefix_dyn_string); |
| 1417 | alias_prefix = dyn_string_buf (alias_prefix_dyn_string); |
| 1418 | command_prefix = dyn_string_buf (command_prefix_dyn_string); |
| 1419 | |
| 1420 | c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1); |
| 1421 | /* We've already tried to look up COMMAND. */ |
| 1422 | gdb_assert (c_command != NULL |
| 1423 | && c_command != (struct cmd_list_element *) -1); |
| 1424 | gdb_assert (c_command->prefixlist != NULL); |
| 1425 | c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1); |
| 1426 | if (c_alias != c_command) |
| 1427 | error (_("ALIAS and COMMAND prefixes do not match.")); |
| 1428 | |
| 1429 | /* add_cmd requires *we* allocate space for name, hence the xstrdup. */ |
| 1430 | add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]), |
| 1431 | command_argv[command_argc - 1], |
| 1432 | class_alias, abbrev_flag, c_command->prefixlist); |
| 1433 | } |
| 1434 | } |
| 1435 | \f |
| 1436 | /* Print a list of files and line numbers which a user may choose from |
| 1437 | in order to list a function which was specified ambiguously (as |
| 1438 | with `list classname::overloadedfuncname', for example). The |
| 1439 | vector in SALS provides the filenames and line numbers. */ |
| 1440 | |
| 1441 | static void |
| 1442 | ambiguous_line_spec (struct symtabs_and_lines *sals) |
| 1443 | { |
| 1444 | int i; |
| 1445 | |
| 1446 | for (i = 0; i < sals->nelts; ++i) |
| 1447 | printf_filtered (_("file: \"%s\", line number: %d\n"), |
| 1448 | symtab_to_filename_for_display (sals->sals[i].symtab), |
| 1449 | sals->sals[i].line); |
| 1450 | } |
| 1451 | |
| 1452 | /* Sort function for filter_sals. */ |
| 1453 | |
| 1454 | static int |
| 1455 | compare_symtabs (const void *a, const void *b) |
| 1456 | { |
| 1457 | const struct symtab_and_line *sala = a; |
| 1458 | const struct symtab_and_line *salb = b; |
| 1459 | int r; |
| 1460 | |
| 1461 | if (!sala->symtab->dirname) |
| 1462 | { |
| 1463 | if (salb->symtab->dirname) |
| 1464 | return -1; |
| 1465 | } |
| 1466 | else if (!salb->symtab->dirname) |
| 1467 | { |
| 1468 | if (sala->symtab->dirname) |
| 1469 | return 1; |
| 1470 | } |
| 1471 | else |
| 1472 | { |
| 1473 | r = filename_cmp (sala->symtab->dirname, salb->symtab->dirname); |
| 1474 | if (r) |
| 1475 | return r; |
| 1476 | } |
| 1477 | |
| 1478 | r = filename_cmp (sala->symtab->filename, salb->symtab->filename); |
| 1479 | if (r) |
| 1480 | return r; |
| 1481 | |
| 1482 | if (sala->line < salb->line) |
| 1483 | return -1; |
| 1484 | return sala->line == salb->line ? 0 : 1; |
| 1485 | } |
| 1486 | |
| 1487 | /* Remove any SALs that do not match the current program space, or |
| 1488 | which appear to be "file:line" duplicates. */ |
| 1489 | |
| 1490 | static void |
| 1491 | filter_sals (struct symtabs_and_lines *sals) |
| 1492 | { |
| 1493 | int i, out, prev; |
| 1494 | |
| 1495 | out = 0; |
| 1496 | for (i = 0; i < sals->nelts; ++i) |
| 1497 | { |
| 1498 | if (sals->sals[i].pspace == current_program_space |
| 1499 | && sals->sals[i].symtab != NULL) |
| 1500 | { |
| 1501 | sals->sals[out] = sals->sals[i]; |
| 1502 | ++out; |
| 1503 | } |
| 1504 | } |
| 1505 | sals->nelts = out; |
| 1506 | |
| 1507 | qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line), |
| 1508 | compare_symtabs); |
| 1509 | |
| 1510 | out = 1; |
| 1511 | prev = 0; |
| 1512 | for (i = 1; i < sals->nelts; ++i) |
| 1513 | { |
| 1514 | if (compare_symtabs (&sals->sals[prev], &sals->sals[i])) |
| 1515 | { |
| 1516 | /* Symtabs differ. */ |
| 1517 | sals->sals[out] = sals->sals[i]; |
| 1518 | prev = out; |
| 1519 | ++out; |
| 1520 | } |
| 1521 | } |
| 1522 | |
| 1523 | if (sals->nelts == 0) |
| 1524 | { |
| 1525 | xfree (sals->sals); |
| 1526 | sals->sals = NULL; |
| 1527 | } |
| 1528 | else |
| 1529 | sals->nelts = out; |
| 1530 | } |
| 1531 | |
| 1532 | static void |
| 1533 | set_debug (char *arg, int from_tty) |
| 1534 | { |
| 1535 | printf_unfiltered (_("\"set debug\" must be followed by " |
| 1536 | "the name of a debug subcommand.\n")); |
| 1537 | help_list (setdebuglist, "set debug ", -1, gdb_stdout); |
| 1538 | } |
| 1539 | |
| 1540 | static void |
| 1541 | show_debug (char *args, int from_tty) |
| 1542 | { |
| 1543 | cmd_show_list (showdebuglist, from_tty, ""); |
| 1544 | } |
| 1545 | |
| 1546 | void |
| 1547 | init_cmd_lists (void) |
| 1548 | { |
| 1549 | max_user_call_depth = 1024; |
| 1550 | |
| 1551 | cmdlist = NULL; |
| 1552 | infolist = NULL; |
| 1553 | enablelist = NULL; |
| 1554 | disablelist = NULL; |
| 1555 | togglelist = NULL; |
| 1556 | stoplist = NULL; |
| 1557 | deletelist = NULL; |
| 1558 | detachlist = NULL; |
| 1559 | setlist = NULL; |
| 1560 | unsetlist = NULL; |
| 1561 | showlist = NULL; |
| 1562 | sethistlist = NULL; |
| 1563 | showhistlist = NULL; |
| 1564 | unsethistlist = NULL; |
| 1565 | maintenancelist = NULL; |
| 1566 | maintenanceinfolist = NULL; |
| 1567 | maintenanceprintlist = NULL; |
| 1568 | setprintlist = NULL; |
| 1569 | showprintlist = NULL; |
| 1570 | setchecklist = NULL; |
| 1571 | showchecklist = NULL; |
| 1572 | } |
| 1573 | |
| 1574 | static void |
| 1575 | show_info_verbose (struct ui_file *file, int from_tty, |
| 1576 | struct cmd_list_element *c, |
| 1577 | const char *value) |
| 1578 | { |
| 1579 | if (info_verbose) |
| 1580 | fprintf_filtered (file, |
| 1581 | _("Verbose printing of informational messages is %s.\n"), |
| 1582 | value); |
| 1583 | else |
| 1584 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); |
| 1585 | } |
| 1586 | |
| 1587 | static void |
| 1588 | show_history_expansion_p (struct ui_file *file, int from_tty, |
| 1589 | struct cmd_list_element *c, const char *value) |
| 1590 | { |
| 1591 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), |
| 1592 | value); |
| 1593 | } |
| 1594 | |
| 1595 | static void |
| 1596 | show_baud_rate (struct ui_file *file, int from_tty, |
| 1597 | struct cmd_list_element *c, const char *value) |
| 1598 | { |
| 1599 | fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"), |
| 1600 | value); |
| 1601 | } |
| 1602 | |
| 1603 | static void |
| 1604 | show_remote_debug (struct ui_file *file, int from_tty, |
| 1605 | struct cmd_list_element *c, const char *value) |
| 1606 | { |
| 1607 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), |
| 1608 | value); |
| 1609 | } |
| 1610 | |
| 1611 | static void |
| 1612 | show_remote_timeout (struct ui_file *file, int from_tty, |
| 1613 | struct cmd_list_element *c, const char *value) |
| 1614 | { |
| 1615 | fprintf_filtered (file, |
| 1616 | _("Timeout limit to wait for target to respond is %s.\n"), |
| 1617 | value); |
| 1618 | } |
| 1619 | |
| 1620 | static void |
| 1621 | show_max_user_call_depth (struct ui_file *file, int from_tty, |
| 1622 | struct cmd_list_element *c, const char *value) |
| 1623 | { |
| 1624 | fprintf_filtered (file, |
| 1625 | _("The max call depth for user-defined commands is %s.\n"), |
| 1626 | value); |
| 1627 | } |
| 1628 | |
| 1629 | \f |
| 1630 | |
| 1631 | initialize_file_ftype _initialize_cli_cmds; |
| 1632 | |
| 1633 | void |
| 1634 | _initialize_cli_cmds (void) |
| 1635 | { |
| 1636 | struct cmd_list_element *c; |
| 1637 | |
| 1638 | /* Define the classes of commands. |
| 1639 | They will appear in the help list in alphabetical order. */ |
| 1640 | |
| 1641 | add_cmd ("internals", class_maintenance, NULL, _("\ |
| 1642 | Maintenance commands.\n\ |
| 1643 | Some gdb commands are provided just for use by gdb maintainers.\n\ |
| 1644 | These commands are subject to frequent change, and may not be as\n\ |
| 1645 | well documented as user commands."), |
| 1646 | &cmdlist); |
| 1647 | add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist); |
| 1648 | add_cmd ("aliases", class_alias, NULL, |
| 1649 | _("Aliases of other commands."), &cmdlist); |
| 1650 | add_cmd ("user-defined", class_user, NULL, _("\ |
| 1651 | User-defined commands.\n\ |
| 1652 | The commands in this class are those defined by the user.\n\ |
| 1653 | Use the \"define\" command to define a command."), &cmdlist); |
| 1654 | add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist); |
| 1655 | if (!dbx_commands) |
| 1656 | add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist); |
| 1657 | add_cmd ("files", class_files, NULL, _("Specifying and examining files."), |
| 1658 | &cmdlist); |
| 1659 | add_cmd ("breakpoints", class_breakpoint, NULL, |
| 1660 | _("Making program stop at certain points."), &cmdlist); |
| 1661 | add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist); |
| 1662 | add_cmd ("stack", class_stack, NULL, _("\ |
| 1663 | Examining the stack.\n\ |
| 1664 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ |
| 1665 | counting from zero for the innermost (currently executing) frame.\n\n\ |
| 1666 | At any time gdb identifies one frame as the \"selected\" frame.\n\ |
| 1667 | Variable lookups are done with respect to the selected frame.\n\ |
| 1668 | When the program being debugged stops, gdb selects the innermost frame.\n\ |
| 1669 | The commands below can be used to select other frames by number or address."), |
| 1670 | &cmdlist); |
| 1671 | add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist); |
| 1672 | |
| 1673 | /* Define general commands. */ |
| 1674 | |
| 1675 | add_com ("pwd", class_files, pwd_command, _("\ |
| 1676 | Print working directory. This is used for your program as well.")); |
| 1677 | |
| 1678 | c = add_cmd ("cd", class_files, cd_command, _("\ |
| 1679 | Set working directory to DIR for debugger and program being debugged.\n\ |
| 1680 | The change does not take effect for the program being debugged\n\ |
| 1681 | until the next time it is started."), &cmdlist); |
| 1682 | set_cmd_completer (c, filename_completer); |
| 1683 | |
| 1684 | add_com ("echo", class_support, echo_command, _("\ |
| 1685 | Print a constant string. Give string as argument.\n\ |
| 1686 | C escape sequences may be used in the argument.\n\ |
| 1687 | No newline is added at the end of the argument;\n\ |
| 1688 | use \"\\n\" if you want a newline to be printed.\n\ |
| 1689 | Since leading and trailing whitespace are ignored in command arguments,\n\ |
| 1690 | if you want to print some you must use \"\\\" before leading whitespace\n\ |
| 1691 | to be printed or after trailing whitespace.")); |
| 1692 | |
| 1693 | add_setshow_enum_cmd ("script-extension", class_support, |
| 1694 | script_ext_enums, &script_ext_mode, _("\ |
| 1695 | Set mode for script filename extension recognition."), _("\ |
| 1696 | Show mode for script filename extension recognition."), _("\ |
| 1697 | off == no filename extension recognition (all sourced files are GDB scripts)\n\ |
| 1698 | soft == evaluate script according to filename extension, fallback to GDB script" |
| 1699 | "\n\ |
| 1700 | strict == evaluate script according to filename extension, error if not supported" |
| 1701 | ), |
| 1702 | NULL, |
| 1703 | show_script_ext_mode, |
| 1704 | &setlist, &showlist); |
| 1705 | |
| 1706 | add_com ("quit", class_support, quit_command, _("Exit gdb.")); |
| 1707 | c = add_com ("help", class_support, help_command, |
| 1708 | _("Print list of commands.")); |
| 1709 | set_cmd_completer (c, command_completer); |
| 1710 | add_com_alias ("q", "quit", class_support, 1); |
| 1711 | add_com_alias ("h", "help", class_support, 1); |
| 1712 | |
| 1713 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ |
| 1714 | Set verbosity."), _("\ |
| 1715 | Show verbosity."), NULL, |
| 1716 | set_verbose, |
| 1717 | show_info_verbose, |
| 1718 | &setlist, &showlist); |
| 1719 | |
| 1720 | add_prefix_cmd ("history", class_support, set_history, |
| 1721 | _("Generic command for setting command history parameters."), |
| 1722 | &sethistlist, "set history ", 0, &setlist); |
| 1723 | add_prefix_cmd ("history", class_support, show_history, |
| 1724 | _("Generic command for showing command history parameters."), |
| 1725 | &showhistlist, "show history ", 0, &showlist); |
| 1726 | |
| 1727 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ |
| 1728 | Set history expansion on command input."), _("\ |
| 1729 | Show history expansion on command input."), _("\ |
| 1730 | Without an argument, history expansion is enabled."), |
| 1731 | NULL, |
| 1732 | show_history_expansion_p, |
| 1733 | &sethistlist, &showhistlist); |
| 1734 | |
| 1735 | add_prefix_cmd ("info", class_info, info_command, _("\ |
| 1736 | Generic command for showing things about the program being debugged."), |
| 1737 | &infolist, "info ", 0, &cmdlist); |
| 1738 | add_com_alias ("i", "info", class_info, 1); |
| 1739 | add_com_alias ("inf", "info", class_info, 1); |
| 1740 | |
| 1741 | add_com ("complete", class_obscure, complete_command, |
| 1742 | _("List the completions for the rest of the line as a command.")); |
| 1743 | |
| 1744 | add_prefix_cmd ("show", class_info, show_command, _("\ |
| 1745 | Generic command for showing things about the debugger."), |
| 1746 | &showlist, "show ", 0, &cmdlist); |
| 1747 | /* Another way to get at the same thing. */ |
| 1748 | add_info ("set", show_command, _("Show all GDB settings.")); |
| 1749 | |
| 1750 | add_cmd ("commands", no_set_class, show_commands, _("\ |
| 1751 | Show the history of commands you typed.\n\ |
| 1752 | You can supply a command number to start with, or a `+' to start after\n\ |
| 1753 | the previous command number shown."), |
| 1754 | &showlist); |
| 1755 | |
| 1756 | add_cmd ("version", no_set_class, show_version, |
| 1757 | _("Show what version of GDB this is."), &showlist); |
| 1758 | |
| 1759 | /* If target is open when baud changes, it doesn't take effect until |
| 1760 | the next open (I think, not sure). */ |
| 1761 | add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\ |
| 1762 | Set baud rate for remote serial I/O."), _("\ |
| 1763 | Show baud rate for remote serial I/O."), _("\ |
| 1764 | This value is used to set the speed of the serial port when debugging\n\ |
| 1765 | using remote targets."), |
| 1766 | NULL, |
| 1767 | show_baud_rate, |
| 1768 | &setlist, &showlist); |
| 1769 | |
| 1770 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ |
| 1771 | Set debugging of remote protocol."), _("\ |
| 1772 | Show debugging of remote protocol."), _("\ |
| 1773 | When enabled, each packet sent or received with the remote target\n\ |
| 1774 | is displayed."), |
| 1775 | NULL, |
| 1776 | show_remote_debug, |
| 1777 | &setdebuglist, &showdebuglist); |
| 1778 | |
| 1779 | add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class, |
| 1780 | &remote_timeout, _("\ |
| 1781 | Set timeout limit to wait for target to respond."), _("\ |
| 1782 | Show timeout limit to wait for target to respond."), _("\ |
| 1783 | This value is used to set the time limit for gdb to wait for a response\n\ |
| 1784 | from the target."), |
| 1785 | NULL, |
| 1786 | show_remote_timeout, |
| 1787 | &setlist, &showlist); |
| 1788 | |
| 1789 | add_prefix_cmd ("debug", no_class, set_debug, |
| 1790 | _("Generic command for setting gdb debugging flags"), |
| 1791 | &setdebuglist, "set debug ", 0, &setlist); |
| 1792 | |
| 1793 | add_prefix_cmd ("debug", no_class, show_debug, |
| 1794 | _("Generic command for showing gdb debugging flags"), |
| 1795 | &showdebuglist, "show debug ", 0, &showlist); |
| 1796 | |
| 1797 | c = add_com ("shell", class_support, shell_escape, _("\ |
| 1798 | Execute the rest of the line as a shell command.\n\ |
| 1799 | With no arguments, run an inferior shell.")); |
| 1800 | set_cmd_completer (c, filename_completer); |
| 1801 | |
| 1802 | c = add_com ("edit", class_files, edit_command, _("\ |
| 1803 | Edit specified file or function.\n\ |
| 1804 | With no argument, edits file containing most recent line listed.\n\ |
| 1805 | Editing targets can be specified in these ways:\n\ |
| 1806 | FILE:LINENUM, to edit at that line in that file,\n\ |
| 1807 | FUNCTION, to edit at the beginning of that function,\n\ |
| 1808 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
| 1809 | *ADDRESS, to edit at the line containing that address.\n\ |
| 1810 | Uses EDITOR environment variable contents as editor (or ex as default).")); |
| 1811 | |
| 1812 | c->completer = location_completer; |
| 1813 | |
| 1814 | add_com ("list", class_files, list_command, _("\ |
| 1815 | List specified function or line.\n\ |
| 1816 | With no argument, lists ten more lines after or around previous listing.\n\ |
| 1817 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ |
| 1818 | One argument specifies a line, and ten lines are listed around that line.\n\ |
| 1819 | Two arguments with comma between specify starting and ending lines to list.\n\ |
| 1820 | Lines can be specified in these ways:\n\ |
| 1821 | LINENUM, to list around that line in current file,\n\ |
| 1822 | FILE:LINENUM, to list around that line in that file,\n\ |
| 1823 | FUNCTION, to list around beginning of that function,\n\ |
| 1824 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
| 1825 | *ADDRESS, to list around the line containing that address.\n\ |
| 1826 | With two args if one is empty it stands for ten lines away from \ |
| 1827 | the other arg.")); |
| 1828 | |
| 1829 | if (!xdb_commands) |
| 1830 | add_com_alias ("l", "list", class_files, 1); |
| 1831 | else |
| 1832 | add_com_alias ("v", "list", class_files, 1); |
| 1833 | |
| 1834 | if (dbx_commands) |
| 1835 | add_com_alias ("file", "list", class_files, 1); |
| 1836 | |
| 1837 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ |
| 1838 | Disassemble a specified section of memory.\n\ |
| 1839 | Default is the function surrounding the pc of the selected frame.\n\ |
| 1840 | With a /m modifier, source lines are included (if available).\n\ |
| 1841 | With a /r modifier, raw instructions in hex are included.\n\ |
| 1842 | With a single argument, the function surrounding that address is dumped.\n\ |
| 1843 | Two arguments (separated by a comma) are taken as a range of memory to dump,\n\ |
| 1844 | in the form of \"start,end\", or \"start,+length\".\n\ |
| 1845 | \n\ |
| 1846 | Note that the address is interpreted as an expression, not as a location\n\ |
| 1847 | like in the \"break\" command.\n\ |
| 1848 | So, for example, if you want to disassemble function bar in file foo.c\n\ |
| 1849 | you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\".")); |
| 1850 | set_cmd_completer (c, location_completer); |
| 1851 | if (xdb_commands) |
| 1852 | add_com_alias ("va", "disassemble", class_xdb, 0); |
| 1853 | |
| 1854 | add_com_alias ("!", "shell", class_support, 0); |
| 1855 | |
| 1856 | c = add_com ("make", class_support, make_command, _("\ |
| 1857 | Run the ``make'' program using the rest of the line as arguments.")); |
| 1858 | set_cmd_completer (c, filename_completer); |
| 1859 | add_cmd ("user", no_class, show_user, _("\ |
| 1860 | Show definitions of non-python user defined commands.\n\ |
| 1861 | Argument is the name of the user defined command.\n\ |
| 1862 | With no argument, show definitions of all user defined commands."), &showlist); |
| 1863 | add_com ("apropos", class_support, apropos_command, |
| 1864 | _("Search for commands matching a REGEXP")); |
| 1865 | |
| 1866 | add_setshow_uinteger_cmd ("max-user-call-depth", no_class, |
| 1867 | &max_user_call_depth, _("\ |
| 1868 | Set the max call depth for non-python user-defined commands."), _("\ |
| 1869 | Show the max call depth for non-python user-defined commands."), NULL, |
| 1870 | NULL, |
| 1871 | show_max_user_call_depth, |
| 1872 | &setlist, &showlist); |
| 1873 | |
| 1874 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ |
| 1875 | Set tracing of GDB CLI commands."), _("\ |
| 1876 | Show state of GDB CLI command tracing."), _("\ |
| 1877 | When 'on', each command is displayed as it is executed."), |
| 1878 | NULL, |
| 1879 | NULL, |
| 1880 | &setlist, &showlist); |
| 1881 | |
| 1882 | c = add_com ("alias", class_support, alias_command, _("\ |
| 1883 | Define a new command that is an alias of an existing command.\n\ |
| 1884 | Usage: alias [-a] [--] ALIAS = COMMAND\n\ |
| 1885 | ALIAS is the name of the alias command to create.\n\ |
| 1886 | COMMAND is the command being aliased to.\n\ |
| 1887 | If \"-a\" is specified, the command is an abbreviation,\n\ |
| 1888 | and will not appear in help command list output.\n\ |
| 1889 | \n\ |
| 1890 | Examples:\n\ |
| 1891 | Make \"spe\" an alias of \"set print elements\":\n\ |
| 1892 | alias spe = set print elements\n\ |
| 1893 | Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\ |
| 1894 | alias -a set print elms = set print elements")); |
| 1895 | } |
| 1896 | |
| 1897 | void |
| 1898 | init_cli_cmds (void) |
| 1899 | { |
| 1900 | struct cmd_list_element *c; |
| 1901 | char *source_help_text; |
| 1902 | |
| 1903 | source_help_text = xstrprintf (_("\ |
| 1904 | Read commands from a file named FILE.\n\ |
| 1905 | \n\ |
| 1906 | Usage: source [-s] [-v] FILE\n\ |
| 1907 | -s: search for the script in the source search path,\n\ |
| 1908 | even if FILE contains directories.\n\ |
| 1909 | -v: each command in FILE is echoed as it is executed.\n\ |
| 1910 | \n\ |
| 1911 | Note that the file \"%s\" is read automatically in this way\n\ |
| 1912 | when GDB is started."), gdbinit); |
| 1913 | c = add_cmd ("source", class_support, source_command, |
| 1914 | source_help_text, &cmdlist); |
| 1915 | set_cmd_completer (c, filename_completer); |
| 1916 | } |