| 1 | /* GDB CLI commands. |
| 2 | |
| 3 | Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, |
| 4 | 2011 Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "exceptions.h" |
| 23 | #include "arch-utils.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 | |
| 51 | #include "python/python.h" |
| 52 | |
| 53 | #ifdef TUI |
| 54 | #include "tui/tui.h" /* For tui_active et.al. */ |
| 55 | #endif |
| 56 | |
| 57 | #include <fcntl.h> |
| 58 | |
| 59 | /* Prototypes for local command functions */ |
| 60 | |
| 61 | static void complete_command (char *, int); |
| 62 | |
| 63 | static void echo_command (char *, int); |
| 64 | |
| 65 | static void pwd_command (char *, int); |
| 66 | |
| 67 | static void show_version (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 show_user (char *, int); |
| 80 | |
| 81 | static void make_command (char *, int); |
| 82 | |
| 83 | static void shell_escape (char *, int); |
| 84 | |
| 85 | static void edit_command (char *, int); |
| 86 | |
| 87 | static void list_command (char *, int); |
| 88 | |
| 89 | void apropos_command (char *, int); |
| 90 | |
| 91 | /* Prototypes for local utility functions */ |
| 92 | |
| 93 | static void ambiguous_line_spec (struct symtabs_and_lines *); |
| 94 | \f |
| 95 | /* Limit the call depth of user-defined commands */ |
| 96 | int max_user_call_depth; |
| 97 | |
| 98 | /* Define all cmd_list_elements. */ |
| 99 | |
| 100 | /* Chain containing all defined commands. */ |
| 101 | |
| 102 | struct cmd_list_element *cmdlist; |
| 103 | |
| 104 | /* Chain containing all defined info subcommands. */ |
| 105 | |
| 106 | struct cmd_list_element *infolist; |
| 107 | |
| 108 | /* Chain containing all defined enable subcommands. */ |
| 109 | |
| 110 | struct cmd_list_element *enablelist; |
| 111 | |
| 112 | /* Chain containing all defined disable subcommands. */ |
| 113 | |
| 114 | struct cmd_list_element *disablelist; |
| 115 | |
| 116 | /* Chain containing all defined toggle subcommands. */ |
| 117 | |
| 118 | struct cmd_list_element *togglelist; |
| 119 | |
| 120 | /* Chain containing all defined stop subcommands. */ |
| 121 | |
| 122 | struct cmd_list_element *stoplist; |
| 123 | |
| 124 | /* Chain containing all defined delete subcommands. */ |
| 125 | |
| 126 | struct cmd_list_element *deletelist; |
| 127 | |
| 128 | /* Chain containing all defined detach subcommands. */ |
| 129 | |
| 130 | struct cmd_list_element *detachlist; |
| 131 | |
| 132 | /* Chain containing all defined kill subcommands. */ |
| 133 | |
| 134 | struct cmd_list_element *killlist; |
| 135 | |
| 136 | /* Chain containing all defined "enable breakpoint" subcommands. */ |
| 137 | |
| 138 | struct cmd_list_element *enablebreaklist; |
| 139 | |
| 140 | /* Chain containing all defined set subcommands */ |
| 141 | |
| 142 | struct cmd_list_element *setlist; |
| 143 | |
| 144 | /* Chain containing all defined unset subcommands */ |
| 145 | |
| 146 | struct cmd_list_element *unsetlist; |
| 147 | |
| 148 | /* Chain containing all defined show subcommands. */ |
| 149 | |
| 150 | struct cmd_list_element *showlist; |
| 151 | |
| 152 | /* Chain containing all defined \"set history\". */ |
| 153 | |
| 154 | struct cmd_list_element *sethistlist; |
| 155 | |
| 156 | /* Chain containing all defined \"show history\". */ |
| 157 | |
| 158 | struct cmd_list_element *showhistlist; |
| 159 | |
| 160 | /* Chain containing all defined \"unset history\". */ |
| 161 | |
| 162 | struct cmd_list_element *unsethistlist; |
| 163 | |
| 164 | /* Chain containing all defined maintenance subcommands. */ |
| 165 | |
| 166 | struct cmd_list_element *maintenancelist; |
| 167 | |
| 168 | /* Chain containing all defined "maintenance info" subcommands. */ |
| 169 | |
| 170 | struct cmd_list_element *maintenanceinfolist; |
| 171 | |
| 172 | /* Chain containing all defined "maintenance print" subcommands. */ |
| 173 | |
| 174 | struct cmd_list_element *maintenanceprintlist; |
| 175 | |
| 176 | struct cmd_list_element *setprintlist; |
| 177 | |
| 178 | struct cmd_list_element *showprintlist; |
| 179 | |
| 180 | struct cmd_list_element *setdebuglist; |
| 181 | |
| 182 | struct cmd_list_element *showdebuglist; |
| 183 | |
| 184 | struct cmd_list_element *setchecklist; |
| 185 | |
| 186 | struct cmd_list_element *showchecklist; |
| 187 | |
| 188 | /* Command tracing state. */ |
| 189 | |
| 190 | int source_verbose = 0; |
| 191 | int trace_commands = 0; |
| 192 | \f |
| 193 | /* 'script-extension' option support. */ |
| 194 | |
| 195 | static const char script_ext_off[] = "off"; |
| 196 | static const char script_ext_soft[] = "soft"; |
| 197 | static const char script_ext_strict[] = "strict"; |
| 198 | |
| 199 | static const char *script_ext_enums[] = { |
| 200 | script_ext_off, |
| 201 | script_ext_soft, |
| 202 | script_ext_strict, |
| 203 | NULL |
| 204 | }; |
| 205 | |
| 206 | static const char *script_ext_mode = script_ext_soft; |
| 207 | \f |
| 208 | /* Utility used everywhere when at least one argument is needed and |
| 209 | none is supplied. */ |
| 210 | |
| 211 | void |
| 212 | error_no_arg (char *why) |
| 213 | { |
| 214 | error (_("Argument required (%s)."), why); |
| 215 | } |
| 216 | |
| 217 | /* The "info" command is defined as a prefix, with allow_unknown = 0. |
| 218 | Therefore, its own definition is called only for "info" with no |
| 219 | args. */ |
| 220 | |
| 221 | static void |
| 222 | info_command (char *arg, int from_tty) |
| 223 | { |
| 224 | printf_unfiltered (_("\"info\" must be followed by " |
| 225 | "the name of an info command.\n")); |
| 226 | help_list (infolist, "info ", -1, gdb_stdout); |
| 227 | } |
| 228 | |
| 229 | /* The "show" command with no arguments shows all the settings. */ |
| 230 | |
| 231 | static void |
| 232 | show_command (char *arg, int from_tty) |
| 233 | { |
| 234 | cmd_show_list (showlist, from_tty, ""); |
| 235 | } |
| 236 | \f |
| 237 | /* Provide documentation on command or list given by COMMAND. FROM_TTY |
| 238 | is ignored. */ |
| 239 | |
| 240 | static void |
| 241 | help_command (char *command, int from_tty) |
| 242 | { |
| 243 | help_cmd (command, gdb_stdout); |
| 244 | } |
| 245 | \f |
| 246 | /* String compare function for qsort. */ |
| 247 | static int |
| 248 | compare_strings (const void *arg1, const void *arg2) |
| 249 | { |
| 250 | const char **s1 = (const char **) arg1; |
| 251 | const char **s2 = (const char **) arg2; |
| 252 | |
| 253 | return strcmp (*s1, *s2); |
| 254 | } |
| 255 | |
| 256 | /* The "complete" command is used by Emacs to implement completion. */ |
| 257 | |
| 258 | static void |
| 259 | complete_command (char *arg, int from_tty) |
| 260 | { |
| 261 | int argpoint; |
| 262 | char **completions, *point, *arg_prefix; |
| 263 | |
| 264 | dont_repeat (); |
| 265 | |
| 266 | if (arg == NULL) |
| 267 | arg = ""; |
| 268 | argpoint = strlen (arg); |
| 269 | |
| 270 | /* complete_line assumes that its first argument is somewhere |
| 271 | within, and except for filenames at the beginning of, the word to |
| 272 | be completed. The following crude imitation of readline's |
| 273 | word-breaking tries to accomodate this. */ |
| 274 | point = arg + argpoint; |
| 275 | while (point > arg) |
| 276 | { |
| 277 | if (strchr (rl_completer_word_break_characters, point[-1]) != 0) |
| 278 | break; |
| 279 | point--; |
| 280 | } |
| 281 | |
| 282 | arg_prefix = alloca (point - arg + 1); |
| 283 | memcpy (arg_prefix, arg, point - arg); |
| 284 | arg_prefix[point - arg] = 0; |
| 285 | |
| 286 | completions = complete_line (point, arg, argpoint); |
| 287 | |
| 288 | if (completions) |
| 289 | { |
| 290 | int item, size; |
| 291 | |
| 292 | for (size = 0; completions[size]; ++size) |
| 293 | ; |
| 294 | qsort (completions, size, sizeof (char *), compare_strings); |
| 295 | |
| 296 | /* We do extra processing here since we only want to print each |
| 297 | unique item once. */ |
| 298 | item = 0; |
| 299 | while (item < size) |
| 300 | { |
| 301 | int next_item; |
| 302 | |
| 303 | printf_unfiltered ("%s%s\n", arg_prefix, completions[item]); |
| 304 | next_item = item + 1; |
| 305 | while (next_item < size |
| 306 | && ! strcmp (completions[item], completions[next_item])) |
| 307 | { |
| 308 | xfree (completions[next_item]); |
| 309 | ++next_item; |
| 310 | } |
| 311 | |
| 312 | xfree (completions[item]); |
| 313 | item = next_item; |
| 314 | } |
| 315 | |
| 316 | xfree (completions); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | int |
| 321 | is_complete_command (struct cmd_list_element *c) |
| 322 | { |
| 323 | return cmd_cfunc_eq (c, complete_command); |
| 324 | } |
| 325 | |
| 326 | static void |
| 327 | show_version (char *args, int from_tty) |
| 328 | { |
| 329 | immediate_quit++; |
| 330 | print_gdb_version (gdb_stdout); |
| 331 | printf_filtered ("\n"); |
| 332 | immediate_quit--; |
| 333 | } |
| 334 | |
| 335 | /* Handle the quit command. */ |
| 336 | |
| 337 | void |
| 338 | quit_command (char *args, int from_tty) |
| 339 | { |
| 340 | if (!quit_confirm ()) |
| 341 | error (_("Not confirmed.")); |
| 342 | |
| 343 | disconnect_tracing (from_tty); |
| 344 | |
| 345 | quit_force (args, from_tty); |
| 346 | } |
| 347 | |
| 348 | static void |
| 349 | pwd_command (char *args, int from_tty) |
| 350 | { |
| 351 | if (args) |
| 352 | error (_("The \"pwd\" command does not take an argument: %s"), args); |
| 353 | if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf))) |
| 354 | error (_("Error finding name of working directory: %s"), |
| 355 | safe_strerror (errno)); |
| 356 | |
| 357 | if (strcmp (gdb_dirbuf, current_directory) != 0) |
| 358 | printf_unfiltered (_("Working directory %s\n (canonically %s).\n"), |
| 359 | current_directory, gdb_dirbuf); |
| 360 | else |
| 361 | printf_unfiltered (_("Working directory %s.\n"), current_directory); |
| 362 | } |
| 363 | |
| 364 | void |
| 365 | cd_command (char *dir, int from_tty) |
| 366 | { |
| 367 | int len; |
| 368 | /* Found something other than leading repetitions of "/..". */ |
| 369 | int found_real_path; |
| 370 | char *p; |
| 371 | |
| 372 | /* If the new directory is absolute, repeat is a no-op; if relative, |
| 373 | repeat might be useful but is more likely to be a mistake. */ |
| 374 | dont_repeat (); |
| 375 | |
| 376 | if (dir == 0) |
| 377 | error_no_arg (_("new working directory")); |
| 378 | |
| 379 | dir = tilde_expand (dir); |
| 380 | make_cleanup (xfree, dir); |
| 381 | |
| 382 | if (chdir (dir) < 0) |
| 383 | perror_with_name (dir); |
| 384 | |
| 385 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 386 | /* There's too much mess with DOSish names like "d:", "d:.", |
| 387 | "d:./foo" etc. Instead of having lots of special #ifdef'ed code, |
| 388 | simply get the canonicalized name of the current directory. */ |
| 389 | dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); |
| 390 | #endif |
| 391 | |
| 392 | len = strlen (dir); |
| 393 | if (IS_DIR_SEPARATOR (dir[len - 1])) |
| 394 | { |
| 395 | /* Remove the trailing slash unless this is a root directory |
| 396 | (including a drive letter on non-Unix systems). */ |
| 397 | if (!(len == 1) /* "/" */ |
| 398 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 399 | && !(len == 3 && dir[1] == ':') /* "d:/" */ |
| 400 | #endif |
| 401 | ) |
| 402 | len--; |
| 403 | } |
| 404 | |
| 405 | dir = savestring (dir, len); |
| 406 | if (IS_ABSOLUTE_PATH (dir)) |
| 407 | current_directory = dir; |
| 408 | else |
| 409 | { |
| 410 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) |
| 411 | current_directory = concat (current_directory, dir, (char *)NULL); |
| 412 | else |
| 413 | current_directory = concat (current_directory, SLASH_STRING, |
| 414 | dir, (char *)NULL); |
| 415 | xfree (dir); |
| 416 | } |
| 417 | |
| 418 | /* Now simplify any occurrences of `.' and `..' in the pathname. */ |
| 419 | |
| 420 | found_real_path = 0; |
| 421 | for (p = current_directory; *p;) |
| 422 | { |
| 423 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' |
| 424 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) |
| 425 | strcpy (p, p + 2); |
| 426 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' |
| 427 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) |
| 428 | { |
| 429 | if (found_real_path) |
| 430 | { |
| 431 | /* Search backwards for the directory just before the "/.." |
| 432 | and obliterate it and the "/..". */ |
| 433 | char *q = p; |
| 434 | |
| 435 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) |
| 436 | --q; |
| 437 | |
| 438 | if (q == current_directory) |
| 439 | /* current_directory is |
| 440 | a relative pathname ("can't happen"--leave it alone). */ |
| 441 | ++p; |
| 442 | else |
| 443 | { |
| 444 | strcpy (q - 1, p + 3); |
| 445 | p = q - 1; |
| 446 | } |
| 447 | } |
| 448 | else |
| 449 | /* We are dealing with leading repetitions of "/..", for |
| 450 | example "/../..", which is the Mach super-root. */ |
| 451 | p += 3; |
| 452 | } |
| 453 | else |
| 454 | { |
| 455 | found_real_path = 1; |
| 456 | ++p; |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | forget_cached_source_info (); |
| 461 | |
| 462 | if (from_tty) |
| 463 | pwd_command ((char *) 0, 1); |
| 464 | } |
| 465 | \f |
| 466 | /* Show the current value of the 'script-extension' option. */ |
| 467 | |
| 468 | static void |
| 469 | show_script_ext_mode (struct ui_file *file, int from_tty, |
| 470 | struct cmd_list_element *c, const char *value) |
| 471 | { |
| 472 | fprintf_filtered (file, |
| 473 | _("Script filename extension recognition is \"%s\".\n"), |
| 474 | value); |
| 475 | } |
| 476 | |
| 477 | /* Try to open SCRIPT_FILE. |
| 478 | If successful, the full path name is stored in *FULL_PATHP, |
| 479 | the stream is stored in *STREAMP, and return 1. |
| 480 | The caller is responsible for freeing *FULL_PATHP. |
| 481 | If not successful, return 0; errno is set for the last file |
| 482 | we tried to open. |
| 483 | |
| 484 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, |
| 485 | search for it in the source search path. |
| 486 | |
| 487 | NOTE: This calls openp which uses xfullpath to compute the full path |
| 488 | instead of gdb_realpath. Symbolic links are not resolved. */ |
| 489 | |
| 490 | int |
| 491 | find_and_open_script (const char *script_file, int search_path, |
| 492 | FILE **streamp, char **full_pathp) |
| 493 | { |
| 494 | char *file; |
| 495 | int fd; |
| 496 | struct cleanup *old_cleanups; |
| 497 | int search_flags = OPF_TRY_CWD_FIRST; |
| 498 | |
| 499 | file = tilde_expand (script_file); |
| 500 | old_cleanups = make_cleanup (xfree, file); |
| 501 | |
| 502 | if (search_path) |
| 503 | search_flags |= OPF_SEARCH_IN_PATH; |
| 504 | |
| 505 | /* Search for and open 'file' on the search path used for source |
| 506 | files. Put the full location in *FULL_PATHP. */ |
| 507 | fd = openp (source_path, search_flags, |
| 508 | file, O_RDONLY, full_pathp); |
| 509 | |
| 510 | if (fd == -1) |
| 511 | { |
| 512 | int save_errno = errno; |
| 513 | do_cleanups (old_cleanups); |
| 514 | errno = save_errno; |
| 515 | return 0; |
| 516 | } |
| 517 | |
| 518 | do_cleanups (old_cleanups); |
| 519 | |
| 520 | *streamp = fdopen (fd, FOPEN_RT); |
| 521 | return 1; |
| 522 | } |
| 523 | |
| 524 | /* Load script FILE, which has already been opened as STREAM. |
| 525 | STREAM is closed before we return. */ |
| 526 | |
| 527 | static void |
| 528 | source_script_from_stream (FILE *stream, const char *file) |
| 529 | { |
| 530 | if (script_ext_mode != script_ext_off |
| 531 | && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py")) |
| 532 | { |
| 533 | volatile struct gdb_exception e; |
| 534 | |
| 535 | TRY_CATCH (e, RETURN_MASK_ERROR) |
| 536 | { |
| 537 | source_python_script (stream, file); |
| 538 | } |
| 539 | if (e.reason < 0) |
| 540 | { |
| 541 | /* Should we fallback to ye olde GDB script mode? */ |
| 542 | if (script_ext_mode == script_ext_soft |
| 543 | && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR) |
| 544 | { |
| 545 | fseek (stream, 0, SEEK_SET); |
| 546 | script_from_file (stream, (char*) file); |
| 547 | } |
| 548 | else |
| 549 | { |
| 550 | /* Nope, just punt. */ |
| 551 | fclose (stream); |
| 552 | throw_exception (e); |
| 553 | } |
| 554 | } |
| 555 | else |
| 556 | fclose (stream); |
| 557 | } |
| 558 | else |
| 559 | script_from_file (stream, file); |
| 560 | } |
| 561 | |
| 562 | /* Worker to perform the "source" command. |
| 563 | Load script FILE. |
| 564 | If SEARCH_PATH is non-zero, and the file isn't found in cwd, |
| 565 | search for it in the source search path. */ |
| 566 | |
| 567 | static void |
| 568 | source_script_with_search (const char *file, int from_tty, int search_path) |
| 569 | { |
| 570 | FILE *stream; |
| 571 | char *full_path; |
| 572 | struct cleanup *old_cleanups; |
| 573 | |
| 574 | if (file == NULL || *file == 0) |
| 575 | error (_("source command requires file name of file to source.")); |
| 576 | |
| 577 | if (!find_and_open_script (file, search_path, &stream, &full_path)) |
| 578 | { |
| 579 | /* The script wasn't found, or was otherwise inaccessible. |
| 580 | If the source command was invoked interactively, throw an |
| 581 | error. Otherwise (e.g. if it was invoked by a script), |
| 582 | silently ignore the error. */ |
| 583 | if (from_tty) |
| 584 | perror_with_name (file); |
| 585 | else |
| 586 | return; |
| 587 | } |
| 588 | |
| 589 | old_cleanups = make_cleanup (xfree, full_path); |
| 590 | source_script_from_stream (stream, file); |
| 591 | do_cleanups (old_cleanups); |
| 592 | } |
| 593 | |
| 594 | /* Wrapper around source_script_with_search to export it to main.c |
| 595 | for use in loading .gdbinit scripts. */ |
| 596 | |
| 597 | void |
| 598 | source_script (char *file, int from_tty) |
| 599 | { |
| 600 | source_script_with_search (file, from_tty, 0); |
| 601 | } |
| 602 | |
| 603 | /* Return the source_verbose global variable to its previous state |
| 604 | on exit from the source command, by whatever means. */ |
| 605 | static void |
| 606 | source_verbose_cleanup (void *old_value) |
| 607 | { |
| 608 | source_verbose = *(int *)old_value; |
| 609 | xfree (old_value); |
| 610 | } |
| 611 | |
| 612 | static void |
| 613 | source_command (char *args, int from_tty) |
| 614 | { |
| 615 | struct cleanup *old_cleanups; |
| 616 | char *file = args; |
| 617 | int *old_source_verbose = xmalloc (sizeof(int)); |
| 618 | int search_path = 0; |
| 619 | |
| 620 | *old_source_verbose = source_verbose; |
| 621 | old_cleanups = make_cleanup (source_verbose_cleanup, |
| 622 | old_source_verbose); |
| 623 | |
| 624 | /* -v causes the source command to run in verbose mode. |
| 625 | -s causes the file to be searched in the source search path, |
| 626 | even if the file name contains a '/'. |
| 627 | We still have to be able to handle filenames with spaces in a |
| 628 | backward compatible way, so buildargv is not appropriate. */ |
| 629 | |
| 630 | if (args) |
| 631 | { |
| 632 | while (args[0] != '\0') |
| 633 | { |
| 634 | /* Make sure leading white space does not break the |
| 635 | comparisons. */ |
| 636 | while (isspace(args[0])) |
| 637 | args++; |
| 638 | |
| 639 | if (args[0] != '-') |
| 640 | break; |
| 641 | |
| 642 | if (args[1] == 'v' && isspace (args[2])) |
| 643 | { |
| 644 | source_verbose = 1; |
| 645 | |
| 646 | /* Skip passed -v. */ |
| 647 | args = &args[3]; |
| 648 | } |
| 649 | else if (args[1] == 's' && isspace (args[2])) |
| 650 | { |
| 651 | search_path = 1; |
| 652 | |
| 653 | /* Skip passed -s. */ |
| 654 | args = &args[3]; |
| 655 | } |
| 656 | else |
| 657 | break; |
| 658 | } |
| 659 | |
| 660 | while (isspace (args[0])) |
| 661 | args++; |
| 662 | file = args; |
| 663 | } |
| 664 | |
| 665 | source_script_with_search (file, from_tty, search_path); |
| 666 | |
| 667 | do_cleanups (old_cleanups); |
| 668 | } |
| 669 | |
| 670 | |
| 671 | static void |
| 672 | echo_command (char *text, int from_tty) |
| 673 | { |
| 674 | char *p = text; |
| 675 | int c; |
| 676 | |
| 677 | if (text) |
| 678 | while ((c = *p++) != '\0') |
| 679 | { |
| 680 | if (c == '\\') |
| 681 | { |
| 682 | /* \ at end of argument is used after spaces |
| 683 | so they won't be lost. */ |
| 684 | if (*p == 0) |
| 685 | return; |
| 686 | |
| 687 | c = parse_escape (get_current_arch (), &p); |
| 688 | if (c >= 0) |
| 689 | printf_filtered ("%c", c); |
| 690 | } |
| 691 | else |
| 692 | printf_filtered ("%c", c); |
| 693 | } |
| 694 | |
| 695 | /* Force this output to appear now. */ |
| 696 | wrap_here (""); |
| 697 | gdb_flush (gdb_stdout); |
| 698 | } |
| 699 | |
| 700 | static void |
| 701 | shell_escape (char *arg, int from_tty) |
| 702 | { |
| 703 | #if defined(CANT_FORK) || \ |
| 704 | (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK)) |
| 705 | /* If ARG is NULL, they want an inferior shell, but `system' just |
| 706 | reports if the shell is available when passed a NULL arg. */ |
| 707 | int rc = system (arg ? arg : ""); |
| 708 | |
| 709 | if (!arg) |
| 710 | arg = "inferior shell"; |
| 711 | |
| 712 | if (rc == -1) |
| 713 | { |
| 714 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, |
| 715 | safe_strerror (errno)); |
| 716 | gdb_flush (gdb_stderr); |
| 717 | } |
| 718 | else if (rc) |
| 719 | { |
| 720 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); |
| 721 | gdb_flush (gdb_stderr); |
| 722 | } |
| 723 | #ifdef GLOBAL_CURDIR |
| 724 | /* Make sure to return to the directory GDB thinks it is, in case |
| 725 | the shell command we just ran changed it. */ |
| 726 | chdir (current_directory); |
| 727 | #endif |
| 728 | #else /* Can fork. */ |
| 729 | int rc, status, pid; |
| 730 | |
| 731 | if ((pid = vfork ()) == 0) |
| 732 | { |
| 733 | char *p, *user_shell; |
| 734 | |
| 735 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) |
| 736 | user_shell = "/bin/sh"; |
| 737 | |
| 738 | /* Get the name of the shell for arg0. */ |
| 739 | if ((p = strrchr (user_shell, '/')) == NULL) |
| 740 | p = user_shell; |
| 741 | else |
| 742 | p++; /* Get past '/' */ |
| 743 | |
| 744 | if (!arg) |
| 745 | execl (user_shell, p, (char *) 0); |
| 746 | else |
| 747 | execl (user_shell, p, "-c", arg, (char *) 0); |
| 748 | |
| 749 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, |
| 750 | safe_strerror (errno)); |
| 751 | gdb_flush (gdb_stderr); |
| 752 | _exit (0177); |
| 753 | } |
| 754 | |
| 755 | if (pid != -1) |
| 756 | while ((rc = wait (&status)) != pid && rc != -1) |
| 757 | ; |
| 758 | else |
| 759 | error (_("Fork failed")); |
| 760 | #endif /* Can fork. */ |
| 761 | } |
| 762 | |
| 763 | static void |
| 764 | edit_command (char *arg, int from_tty) |
| 765 | { |
| 766 | struct symtabs_and_lines sals; |
| 767 | struct symtab_and_line sal; |
| 768 | struct symbol *sym; |
| 769 | char *arg1; |
| 770 | char *editor; |
| 771 | char *p, *fn; |
| 772 | |
| 773 | /* Pull in the current default source line if necessary. */ |
| 774 | if (arg == 0) |
| 775 | { |
| 776 | set_default_source_symtab_and_line (); |
| 777 | sal = get_current_source_symtab_and_line (); |
| 778 | } |
| 779 | |
| 780 | /* Bare "edit" edits file with present line. */ |
| 781 | |
| 782 | if (arg == 0) |
| 783 | { |
| 784 | if (sal.symtab == 0) |
| 785 | error (_("No default source file yet.")); |
| 786 | sal.line += get_lines_to_list () / 2; |
| 787 | } |
| 788 | else |
| 789 | { |
| 790 | /* Now should only be one argument -- decode it in SAL. */ |
| 791 | |
| 792 | arg1 = arg; |
| 793 | sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0); |
| 794 | |
| 795 | if (! sals.nelts) |
| 796 | { |
| 797 | /* C++ */ |
| 798 | return; |
| 799 | } |
| 800 | if (sals.nelts > 1) |
| 801 | { |
| 802 | ambiguous_line_spec (&sals); |
| 803 | xfree (sals.sals); |
| 804 | return; |
| 805 | } |
| 806 | |
| 807 | sal = sals.sals[0]; |
| 808 | xfree (sals.sals); |
| 809 | |
| 810 | if (*arg1) |
| 811 | error (_("Junk at end of line specification.")); |
| 812 | |
| 813 | /* If line was specified by address, first print exactly which |
| 814 | line, and which file. In this case, sal.symtab == 0 means |
| 815 | address is outside of all known source files, not that user |
| 816 | failed to give a filename. */ |
| 817 | if (*arg == '*') |
| 818 | { |
| 819 | struct gdbarch *gdbarch; |
| 820 | |
| 821 | if (sal.symtab == 0) |
| 822 | /* FIXME-32x64--assumes sal.pc fits in long. */ |
| 823 | error (_("No source file for address %s."), |
| 824 | hex_string ((unsigned long) sal.pc)); |
| 825 | |
| 826 | gdbarch = get_objfile_arch (sal.symtab->objfile); |
| 827 | sym = find_pc_function (sal.pc); |
| 828 | if (sym) |
| 829 | printf_filtered ("%s is in %s (%s:%d).\n", |
| 830 | paddress (gdbarch, sal.pc), |
| 831 | SYMBOL_PRINT_NAME (sym), |
| 832 | sal.symtab->filename, sal.line); |
| 833 | else |
| 834 | printf_filtered ("%s is at %s:%d.\n", |
| 835 | paddress (gdbarch, sal.pc), |
| 836 | sal.symtab->filename, sal.line); |
| 837 | } |
| 838 | |
| 839 | /* If what was given does not imply a symtab, it must be an |
| 840 | undebuggable symbol which means no source code. */ |
| 841 | |
| 842 | if (sal.symtab == 0) |
| 843 | error (_("No line number known for %s."), arg); |
| 844 | } |
| 845 | |
| 846 | if ((editor = (char *) getenv ("EDITOR")) == NULL) |
| 847 | editor = "/bin/ex"; |
| 848 | |
| 849 | /* If we don't already know the full absolute file name of the |
| 850 | source file, find it now. */ |
| 851 | if (!sal.symtab->fullname) |
| 852 | { |
| 853 | fn = symtab_to_fullname (sal.symtab); |
| 854 | if (!fn) |
| 855 | fn = "unknown"; |
| 856 | } |
| 857 | else |
| 858 | fn = sal.symtab->fullname; |
| 859 | |
| 860 | /* Quote the file name, in case it has whitespace or other special |
| 861 | characters. */ |
| 862 | p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn); |
| 863 | shell_escape (p, from_tty); |
| 864 | xfree (p); |
| 865 | } |
| 866 | |
| 867 | static void |
| 868 | list_command (char *arg, int from_tty) |
| 869 | { |
| 870 | struct symtabs_and_lines sals, sals_end; |
| 871 | struct symtab_and_line sal = { 0 }; |
| 872 | struct symtab_and_line sal_end = { 0 }; |
| 873 | struct symtab_and_line cursal = { 0 }; |
| 874 | struct symbol *sym; |
| 875 | char *arg1; |
| 876 | int no_end = 1; |
| 877 | int dummy_end = 0; |
| 878 | int dummy_beg = 0; |
| 879 | int linenum_beg = 0; |
| 880 | char *p; |
| 881 | |
| 882 | /* Pull in the current default source line if necessary. */ |
| 883 | if (arg == 0 || arg[0] == '+' || arg[0] == '-') |
| 884 | { |
| 885 | set_default_source_symtab_and_line (); |
| 886 | cursal = get_current_source_symtab_and_line (); |
| 887 | } |
| 888 | |
| 889 | /* "l" or "l +" lists next ten lines. */ |
| 890 | |
| 891 | if (arg == 0 || strcmp (arg, "+") == 0) |
| 892 | { |
| 893 | print_source_lines (cursal.symtab, cursal.line, |
| 894 | cursal.line + get_lines_to_list (), 0); |
| 895 | return; |
| 896 | } |
| 897 | |
| 898 | /* "l -" lists previous ten lines, the ones before the ten just |
| 899 | listed. */ |
| 900 | if (strcmp (arg, "-") == 0) |
| 901 | { |
| 902 | print_source_lines (cursal.symtab, |
| 903 | max (get_first_line_listed () |
| 904 | - get_lines_to_list (), 1), |
| 905 | get_first_line_listed (), 0); |
| 906 | return; |
| 907 | } |
| 908 | |
| 909 | /* Now if there is only one argument, decode it in SAL |
| 910 | and set NO_END. |
| 911 | If there are two arguments, decode them in SAL and SAL_END |
| 912 | and clear NO_END; however, if one of the arguments is blank, |
| 913 | set DUMMY_BEG or DUMMY_END to record that fact. */ |
| 914 | |
| 915 | if (!have_full_symbols () && !have_partial_symbols ()) |
| 916 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
| 917 | |
| 918 | arg1 = arg; |
| 919 | if (*arg1 == ',') |
| 920 | dummy_beg = 1; |
| 921 | else |
| 922 | { |
| 923 | sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0); |
| 924 | |
| 925 | if (!sals.nelts) |
| 926 | return; /* C++ */ |
| 927 | if (sals.nelts > 1) |
| 928 | { |
| 929 | ambiguous_line_spec (&sals); |
| 930 | xfree (sals.sals); |
| 931 | return; |
| 932 | } |
| 933 | |
| 934 | sal = sals.sals[0]; |
| 935 | xfree (sals.sals); |
| 936 | } |
| 937 | |
| 938 | /* Record whether the BEG arg is all digits. */ |
| 939 | |
| 940 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); |
| 941 | linenum_beg = (p == arg1); |
| 942 | |
| 943 | while (*arg1 == ' ' || *arg1 == '\t') |
| 944 | arg1++; |
| 945 | if (*arg1 == ',') |
| 946 | { |
| 947 | no_end = 0; |
| 948 | arg1++; |
| 949 | while (*arg1 == ' ' || *arg1 == '\t') |
| 950 | arg1++; |
| 951 | if (*arg1 == 0) |
| 952 | dummy_end = 1; |
| 953 | else |
| 954 | { |
| 955 | if (dummy_beg) |
| 956 | sals_end = decode_line_1 (&arg1, 0, 0, 0, 0, 0); |
| 957 | else |
| 958 | sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0, 0); |
| 959 | if (sals_end.nelts == 0) |
| 960 | return; |
| 961 | if (sals_end.nelts > 1) |
| 962 | { |
| 963 | ambiguous_line_spec (&sals_end); |
| 964 | xfree (sals_end.sals); |
| 965 | return; |
| 966 | } |
| 967 | sal_end = sals_end.sals[0]; |
| 968 | xfree (sals_end.sals); |
| 969 | } |
| 970 | } |
| 971 | |
| 972 | if (*arg1) |
| 973 | error (_("Junk at end of line specification.")); |
| 974 | |
| 975 | if (!no_end && !dummy_beg && !dummy_end |
| 976 | && sal.symtab != sal_end.symtab) |
| 977 | error (_("Specified start and end are in different files.")); |
| 978 | if (dummy_beg && dummy_end) |
| 979 | error (_("Two empty args do not say what lines to list.")); |
| 980 | |
| 981 | /* If line was specified by address, |
| 982 | first print exactly which line, and which file. |
| 983 | |
| 984 | In this case, sal.symtab == 0 means address is outside of all |
| 985 | known source files, not that user failed to give a filename. */ |
| 986 | if (*arg == '*') |
| 987 | { |
| 988 | struct gdbarch *gdbarch; |
| 989 | |
| 990 | if (sal.symtab == 0) |
| 991 | /* FIXME-32x64--assumes sal.pc fits in long. */ |
| 992 | error (_("No source file for address %s."), |
| 993 | hex_string ((unsigned long) sal.pc)); |
| 994 | |
| 995 | gdbarch = get_objfile_arch (sal.symtab->objfile); |
| 996 | sym = find_pc_function (sal.pc); |
| 997 | if (sym) |
| 998 | printf_filtered ("%s is in %s (%s:%d).\n", |
| 999 | paddress (gdbarch, sal.pc), |
| 1000 | SYMBOL_PRINT_NAME (sym), |
| 1001 | sal.symtab->filename, sal.line); |
| 1002 | else |
| 1003 | printf_filtered ("%s is at %s:%d.\n", |
| 1004 | paddress (gdbarch, sal.pc), |
| 1005 | sal.symtab->filename, sal.line); |
| 1006 | } |
| 1007 | |
| 1008 | /* If line was not specified by just a line number, and it does not |
| 1009 | imply a symtab, it must be an undebuggable symbol which means no |
| 1010 | source code. */ |
| 1011 | |
| 1012 | if (!linenum_beg && sal.symtab == 0) |
| 1013 | error (_("No line number known for %s."), arg); |
| 1014 | |
| 1015 | /* If this command is repeated with RET, |
| 1016 | turn it into the no-arg variant. */ |
| 1017 | |
| 1018 | if (from_tty) |
| 1019 | *arg = 0; |
| 1020 | |
| 1021 | if (dummy_beg && sal_end.symtab == 0) |
| 1022 | error (_("No default source file yet. Do \"help list\".")); |
| 1023 | if (dummy_beg) |
| 1024 | print_source_lines (sal_end.symtab, |
| 1025 | max (sal_end.line - (get_lines_to_list () - 1), 1), |
| 1026 | sal_end.line + 1, 0); |
| 1027 | else if (sal.symtab == 0) |
| 1028 | error (_("No default source file yet. Do \"help list\".")); |
| 1029 | else if (no_end) |
| 1030 | { |
| 1031 | int first_line = sal.line - get_lines_to_list () / 2; |
| 1032 | |
| 1033 | if (first_line < 1) first_line = 1; |
| 1034 | |
| 1035 | print_source_lines (sal.symtab, |
| 1036 | first_line, |
| 1037 | first_line + get_lines_to_list (), |
| 1038 | 0); |
| 1039 | } |
| 1040 | else |
| 1041 | print_source_lines (sal.symtab, sal.line, |
| 1042 | (dummy_end |
| 1043 | ? sal.line + get_lines_to_list () |
| 1044 | : sal_end.line + 1), |
| 1045 | 0); |
| 1046 | } |
| 1047 | |
| 1048 | /* Subroutine of disassemble_command to simplify it. |
| 1049 | Perform the disassembly. |
| 1050 | NAME is the name of the function if known, or NULL. |
| 1051 | [LOW,HIGH) are the range of addresses to disassemble. |
| 1052 | MIXED is non-zero to print source with the assembler. */ |
| 1053 | |
| 1054 | static void |
| 1055 | print_disassembly (struct gdbarch *gdbarch, const char *name, |
| 1056 | CORE_ADDR low, CORE_ADDR high, int flags) |
| 1057 | { |
| 1058 | #if defined(TUI) |
| 1059 | if (!tui_is_window_visible (DISASSEM_WIN)) |
| 1060 | #endif |
| 1061 | { |
| 1062 | printf_filtered ("Dump of assembler code "); |
| 1063 | if (name != NULL) |
| 1064 | printf_filtered ("for function %s:\n", name); |
| 1065 | else |
| 1066 | printf_filtered ("from %s to %s:\n", |
| 1067 | paddress (gdbarch, low), paddress (gdbarch, high)); |
| 1068 | |
| 1069 | /* Dump the specified range. */ |
| 1070 | gdb_disassembly (gdbarch, uiout, 0, flags, -1, low, high); |
| 1071 | |
| 1072 | printf_filtered ("End of assembler dump.\n"); |
| 1073 | gdb_flush (gdb_stdout); |
| 1074 | } |
| 1075 | #if defined(TUI) |
| 1076 | else |
| 1077 | { |
| 1078 | tui_show_assembly (gdbarch, low); |
| 1079 | } |
| 1080 | #endif |
| 1081 | } |
| 1082 | |
| 1083 | /* Subroutine of disassemble_command to simplify it. |
| 1084 | Print a disassembly of the current function according to FLAGS. */ |
| 1085 | |
| 1086 | static void |
| 1087 | disassemble_current_function (int flags) |
| 1088 | { |
| 1089 | struct frame_info *frame; |
| 1090 | struct gdbarch *gdbarch; |
| 1091 | CORE_ADDR low, high, pc; |
| 1092 | char *name; |
| 1093 | |
| 1094 | frame = get_selected_frame (_("No frame selected.")); |
| 1095 | gdbarch = get_frame_arch (frame); |
| 1096 | pc = get_frame_pc (frame); |
| 1097 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
| 1098 | error (_("No function contains program counter for selected frame.")); |
| 1099 | #if defined(TUI) |
| 1100 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
| 1101 | `tui_version'. */ |
| 1102 | if (tui_active) |
| 1103 | /* FIXME: cagney/2004-02-07: This should be an observer. */ |
| 1104 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
| 1105 | #endif |
| 1106 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
| 1107 | |
| 1108 | print_disassembly (gdbarch, name, low, high, flags); |
| 1109 | } |
| 1110 | |
| 1111 | /* Dump a specified section of assembly code. |
| 1112 | |
| 1113 | Usage: |
| 1114 | disassemble [/mr] |
| 1115 | - dump the assembly code for the function of the current pc |
| 1116 | disassemble [/mr] addr |
| 1117 | - dump the assembly code for the function at ADDR |
| 1118 | disassemble [/mr] low,high |
| 1119 | disassemble [/mr] low,+length |
| 1120 | - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length) |
| 1121 | |
| 1122 | A /m modifier will include source code with the assembly. |
| 1123 | A /r modifier will include raw instructions in hex with the assembly. */ |
| 1124 | |
| 1125 | static void |
| 1126 | disassemble_command (char *arg, int from_tty) |
| 1127 | { |
| 1128 | struct gdbarch *gdbarch = get_current_arch (); |
| 1129 | CORE_ADDR low, high; |
| 1130 | char *name; |
| 1131 | CORE_ADDR pc; |
| 1132 | int flags; |
| 1133 | |
| 1134 | name = NULL; |
| 1135 | flags = 0; |
| 1136 | |
| 1137 | if (arg && *arg == '/') |
| 1138 | { |
| 1139 | ++arg; |
| 1140 | |
| 1141 | if (*arg == '\0') |
| 1142 | error (_("Missing modifier.")); |
| 1143 | |
| 1144 | while (*arg && ! isspace (*arg)) |
| 1145 | { |
| 1146 | switch (*arg++) |
| 1147 | { |
| 1148 | case 'm': |
| 1149 | flags |= DISASSEMBLY_SOURCE; |
| 1150 | break; |
| 1151 | case 'r': |
| 1152 | flags |= DISASSEMBLY_RAW_INSN; |
| 1153 | break; |
| 1154 | default: |
| 1155 | error (_("Invalid disassembly modifier.")); |
| 1156 | } |
| 1157 | } |
| 1158 | |
| 1159 | while (isspace (*arg)) |
| 1160 | ++arg; |
| 1161 | } |
| 1162 | |
| 1163 | if (! arg || ! *arg) |
| 1164 | { |
| 1165 | flags |= DISASSEMBLY_OMIT_FNAME; |
| 1166 | disassemble_current_function (flags); |
| 1167 | return; |
| 1168 | } |
| 1169 | |
| 1170 | pc = value_as_address (parse_to_comma_and_eval (&arg)); |
| 1171 | if (arg[0] == ',') |
| 1172 | ++arg; |
| 1173 | if (arg[0] == '\0') |
| 1174 | { |
| 1175 | /* One argument. */ |
| 1176 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
| 1177 | error (_("No function contains specified address.")); |
| 1178 | #if defined(TUI) |
| 1179 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
| 1180 | `tui_version'. */ |
| 1181 | if (tui_active) |
| 1182 | /* FIXME: cagney/2004-02-07: This should be an observer. */ |
| 1183 | low = tui_get_low_disassembly_address (gdbarch, low, pc); |
| 1184 | #endif |
| 1185 | low += gdbarch_deprecated_function_start_offset (gdbarch); |
| 1186 | flags |= DISASSEMBLY_OMIT_FNAME; |
| 1187 | } |
| 1188 | else |
| 1189 | { |
| 1190 | /* Two arguments. */ |
| 1191 | int incl_flag = 0; |
| 1192 | low = pc; |
| 1193 | while (isspace (*arg)) |
| 1194 | arg++; |
| 1195 | if (arg[0] == '+') |
| 1196 | { |
| 1197 | ++arg; |
| 1198 | incl_flag = 1; |
| 1199 | } |
| 1200 | high = parse_and_eval_address (arg); |
| 1201 | if (incl_flag) |
| 1202 | high += low; |
| 1203 | } |
| 1204 | |
| 1205 | print_disassembly (gdbarch, name, low, high, flags); |
| 1206 | } |
| 1207 | |
| 1208 | static void |
| 1209 | make_command (char *arg, int from_tty) |
| 1210 | { |
| 1211 | char *p; |
| 1212 | |
| 1213 | if (arg == 0) |
| 1214 | p = "make"; |
| 1215 | else |
| 1216 | { |
| 1217 | p = xmalloc (sizeof ("make ") + strlen (arg)); |
| 1218 | strcpy (p, "make "); |
| 1219 | strcpy (p + sizeof ("make ") - 1, arg); |
| 1220 | } |
| 1221 | |
| 1222 | shell_escape (p, from_tty); |
| 1223 | } |
| 1224 | |
| 1225 | static void |
| 1226 | show_user (char *args, int from_tty) |
| 1227 | { |
| 1228 | struct cmd_list_element *c; |
| 1229 | extern struct cmd_list_element *cmdlist; |
| 1230 | |
| 1231 | if (args) |
| 1232 | { |
| 1233 | char *comname = args; |
| 1234 | |
| 1235 | c = lookup_cmd (&comname, cmdlist, "", 0, 1); |
| 1236 | if (c->class != class_user) |
| 1237 | error (_("Not a user command.")); |
| 1238 | show_user_1 (c, "", args, gdb_stdout); |
| 1239 | } |
| 1240 | else |
| 1241 | { |
| 1242 | for (c = cmdlist; c; c = c->next) |
| 1243 | { |
| 1244 | if (c->class == class_user || c->prefixlist != NULL) |
| 1245 | show_user_1 (c, "", c->name, gdb_stdout); |
| 1246 | } |
| 1247 | } |
| 1248 | } |
| 1249 | |
| 1250 | /* Search through names of commands and documentations for a certain |
| 1251 | regular expression. */ |
| 1252 | |
| 1253 | void |
| 1254 | apropos_command (char *searchstr, int from_tty) |
| 1255 | { |
| 1256 | regex_t pattern; |
| 1257 | int code; |
| 1258 | |
| 1259 | if (searchstr == NULL) |
| 1260 | error (_("REGEXP string is empty")); |
| 1261 | |
| 1262 | code = regcomp (&pattern, searchstr, REG_ICASE); |
| 1263 | if (code == 0) |
| 1264 | { |
| 1265 | struct cleanup *cleanups; |
| 1266 | |
| 1267 | cleanups = make_regfree_cleanup (&pattern); |
| 1268 | apropos_cmd (gdb_stdout, cmdlist, &pattern, ""); |
| 1269 | do_cleanups (cleanups); |
| 1270 | } |
| 1271 | else |
| 1272 | { |
| 1273 | char *err = get_regcomp_error (code, &pattern); |
| 1274 | |
| 1275 | make_cleanup (xfree, err); |
| 1276 | error (_("Error in regular expression: %s"), err); |
| 1277 | } |
| 1278 | } |
| 1279 | \f |
| 1280 | /* Print a list of files and line numbers which a user may choose from |
| 1281 | in order to list a function which was specified ambiguously (as |
| 1282 | with `list classname::overloadedfuncname', for example). The |
| 1283 | vector in SALS provides the filenames and line numbers. */ |
| 1284 | |
| 1285 | static void |
| 1286 | ambiguous_line_spec (struct symtabs_and_lines *sals) |
| 1287 | { |
| 1288 | int i; |
| 1289 | |
| 1290 | for (i = 0; i < sals->nelts; ++i) |
| 1291 | printf_filtered (_("file: \"%s\", line number: %d\n"), |
| 1292 | sals->sals[i].symtab->filename, sals->sals[i].line); |
| 1293 | } |
| 1294 | |
| 1295 | static void |
| 1296 | set_debug (char *arg, int from_tty) |
| 1297 | { |
| 1298 | printf_unfiltered (_("\"set debug\" must be followed by " |
| 1299 | "the name of a debug subcommand.\n")); |
| 1300 | help_list (setdebuglist, "set debug ", -1, gdb_stdout); |
| 1301 | } |
| 1302 | |
| 1303 | static void |
| 1304 | show_debug (char *args, int from_tty) |
| 1305 | { |
| 1306 | cmd_show_list (showdebuglist, from_tty, ""); |
| 1307 | } |
| 1308 | |
| 1309 | void |
| 1310 | init_cmd_lists (void) |
| 1311 | { |
| 1312 | max_user_call_depth = 1024; |
| 1313 | |
| 1314 | cmdlist = NULL; |
| 1315 | infolist = NULL; |
| 1316 | enablelist = NULL; |
| 1317 | disablelist = NULL; |
| 1318 | togglelist = NULL; |
| 1319 | stoplist = NULL; |
| 1320 | deletelist = NULL; |
| 1321 | detachlist = NULL; |
| 1322 | enablebreaklist = NULL; |
| 1323 | setlist = NULL; |
| 1324 | unsetlist = NULL; |
| 1325 | showlist = NULL; |
| 1326 | sethistlist = NULL; |
| 1327 | showhistlist = NULL; |
| 1328 | unsethistlist = NULL; |
| 1329 | maintenancelist = NULL; |
| 1330 | maintenanceinfolist = NULL; |
| 1331 | maintenanceprintlist = NULL; |
| 1332 | setprintlist = NULL; |
| 1333 | showprintlist = NULL; |
| 1334 | setchecklist = NULL; |
| 1335 | showchecklist = NULL; |
| 1336 | } |
| 1337 | |
| 1338 | static void |
| 1339 | show_info_verbose (struct ui_file *file, int from_tty, |
| 1340 | struct cmd_list_element *c, |
| 1341 | const char *value) |
| 1342 | { |
| 1343 | if (info_verbose) |
| 1344 | fprintf_filtered (file, |
| 1345 | _("Verbose printing of informational messages is %s.\n"), |
| 1346 | value); |
| 1347 | else |
| 1348 | fprintf_filtered (file, _("Verbosity is %s.\n"), value); |
| 1349 | } |
| 1350 | |
| 1351 | static void |
| 1352 | show_history_expansion_p (struct ui_file *file, int from_tty, |
| 1353 | struct cmd_list_element *c, const char *value) |
| 1354 | { |
| 1355 | fprintf_filtered (file, _("History expansion on command input is %s.\n"), |
| 1356 | value); |
| 1357 | } |
| 1358 | |
| 1359 | static void |
| 1360 | show_baud_rate (struct ui_file *file, int from_tty, |
| 1361 | struct cmd_list_element *c, const char *value) |
| 1362 | { |
| 1363 | fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"), |
| 1364 | value); |
| 1365 | } |
| 1366 | |
| 1367 | static void |
| 1368 | show_remote_debug (struct ui_file *file, int from_tty, |
| 1369 | struct cmd_list_element *c, const char *value) |
| 1370 | { |
| 1371 | fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"), |
| 1372 | value); |
| 1373 | } |
| 1374 | |
| 1375 | static void |
| 1376 | show_remote_timeout (struct ui_file *file, int from_tty, |
| 1377 | struct cmd_list_element *c, const char *value) |
| 1378 | { |
| 1379 | fprintf_filtered (file, |
| 1380 | _("Timeout limit to wait for target to respond is %s.\n"), |
| 1381 | value); |
| 1382 | } |
| 1383 | |
| 1384 | static void |
| 1385 | show_max_user_call_depth (struct ui_file *file, int from_tty, |
| 1386 | struct cmd_list_element *c, const char *value) |
| 1387 | { |
| 1388 | fprintf_filtered (file, |
| 1389 | _("The max call depth for user-defined commands is %s.\n"), |
| 1390 | value); |
| 1391 | } |
| 1392 | |
| 1393 | \f |
| 1394 | void |
| 1395 | init_cli_cmds (void) |
| 1396 | { |
| 1397 | struct cmd_list_element *c; |
| 1398 | char *source_help_text; |
| 1399 | |
| 1400 | /* Define the classes of commands. |
| 1401 | They will appear in the help list in the reverse of this order. */ |
| 1402 | |
| 1403 | add_cmd ("internals", class_maintenance, NULL, _("\ |
| 1404 | Maintenance commands.\n\ |
| 1405 | Some gdb commands are provided just for use by gdb maintainers.\n\ |
| 1406 | These commands are subject to frequent change, and may not be as\n\ |
| 1407 | well documented as user commands."), |
| 1408 | &cmdlist); |
| 1409 | add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist); |
| 1410 | add_cmd ("aliases", class_alias, NULL, |
| 1411 | _("Aliases of other commands."), &cmdlist); |
| 1412 | add_cmd ("user-defined", class_user, NULL, _("\ |
| 1413 | User-defined commands.\n\ |
| 1414 | The commands in this class are those defined by the user.\n\ |
| 1415 | Use the \"define\" command to define a command."), &cmdlist); |
| 1416 | add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist); |
| 1417 | if (!dbx_commands) |
| 1418 | add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist); |
| 1419 | add_cmd ("files", class_files, NULL, _("Specifying and examining files."), |
| 1420 | &cmdlist); |
| 1421 | add_cmd ("breakpoints", class_breakpoint, NULL, |
| 1422 | _("Making program stop at certain points."), &cmdlist); |
| 1423 | add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist); |
| 1424 | add_cmd ("stack", class_stack, NULL, _("\ |
| 1425 | Examining the stack.\n\ |
| 1426 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ |
| 1427 | counting from zero for the innermost (currently executing) frame.\n\n\ |
| 1428 | At any time gdb identifies one frame as the \"selected\" frame.\n\ |
| 1429 | Variable lookups are done with respect to the selected frame.\n\ |
| 1430 | When the program being debugged stops, gdb selects the innermost frame.\n\ |
| 1431 | The commands below can be used to select other frames by number or address."), |
| 1432 | &cmdlist); |
| 1433 | add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist); |
| 1434 | |
| 1435 | /* Define general commands. */ |
| 1436 | |
| 1437 | add_com ("pwd", class_files, pwd_command, _("\ |
| 1438 | Print working directory. This is used for your program as well.")); |
| 1439 | |
| 1440 | c = add_cmd ("cd", class_files, cd_command, _("\ |
| 1441 | Set working directory to DIR for debugger and program being debugged.\n\ |
| 1442 | The change does not take effect for the program being debugged\n\ |
| 1443 | until the next time it is started."), &cmdlist); |
| 1444 | set_cmd_completer (c, filename_completer); |
| 1445 | |
| 1446 | add_com ("echo", class_support, echo_command, _("\ |
| 1447 | Print a constant string. Give string as argument.\n\ |
| 1448 | C escape sequences may be used in the argument.\n\ |
| 1449 | No newline is added at the end of the argument;\n\ |
| 1450 | use \"\\n\" if you want a newline to be printed.\n\ |
| 1451 | Since leading and trailing whitespace are ignored in command arguments,\n\ |
| 1452 | if you want to print some you must use \"\\\" before leading whitespace\n\ |
| 1453 | to be printed or after trailing whitespace.")); |
| 1454 | add_com ("document", class_support, document_command, _("\ |
| 1455 | Document a user-defined command.\n\ |
| 1456 | Give command name as argument. Give documentation on following lines.\n\ |
| 1457 | End with a line of just \"end\".")); |
| 1458 | add_com ("define", class_support, define_command, _("\ |
| 1459 | Define a new command name. Command name is argument.\n\ |
| 1460 | Definition appears on following lines, one command per line.\n\ |
| 1461 | End with a line of just \"end\".\n\ |
| 1462 | Use the \"document\" command to give documentation for the new command.\n\ |
| 1463 | Commands defined in this way may have up to ten arguments.")); |
| 1464 | |
| 1465 | source_help_text = xstrprintf (_("\ |
| 1466 | Read commands from a file named FILE.\n\ |
| 1467 | \n\ |
| 1468 | Usage: source [-s] [-v] FILE\n\ |
| 1469 | -s: search for the script in the source search path,\n\ |
| 1470 | even if FILE contains directories.\n\ |
| 1471 | -v: each command in FILE is echoed as it is executed.\n\ |
| 1472 | \n\ |
| 1473 | Note that the file \"%s\" is read automatically in this way\n\ |
| 1474 | when GDB is started."), gdbinit); |
| 1475 | c = add_cmd ("source", class_support, source_command, |
| 1476 | source_help_text, &cmdlist); |
| 1477 | set_cmd_completer (c, filename_completer); |
| 1478 | |
| 1479 | add_setshow_enum_cmd ("script-extension", class_support, |
| 1480 | script_ext_enums, &script_ext_mode, _("\ |
| 1481 | Set mode for script filename extension recognition."), _("\ |
| 1482 | Show mode for script filename extension recognition."), _("\ |
| 1483 | off == no filename extension recognition (all sourced files are GDB scripts)\n\ |
| 1484 | soft == evaluate script according to filename extension, fallback to GDB script" |
| 1485 | "\n\ |
| 1486 | strict == evaluate script according to filename extension, error if not supported" |
| 1487 | ), |
| 1488 | NULL, |
| 1489 | show_script_ext_mode, |
| 1490 | &setlist, &showlist); |
| 1491 | |
| 1492 | add_com ("quit", class_support, quit_command, _("Exit gdb.")); |
| 1493 | c = add_com ("help", class_support, help_command, |
| 1494 | _("Print list of commands.")); |
| 1495 | set_cmd_completer (c, command_completer); |
| 1496 | add_com_alias ("q", "quit", class_support, 1); |
| 1497 | add_com_alias ("h", "help", class_support, 1); |
| 1498 | |
| 1499 | add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\ |
| 1500 | Set verbosity."), _("\ |
| 1501 | Show verbosity."), NULL, |
| 1502 | set_verbose, |
| 1503 | show_info_verbose, |
| 1504 | &setlist, &showlist); |
| 1505 | |
| 1506 | add_prefix_cmd ("history", class_support, set_history, |
| 1507 | _("Generic command for setting command history parameters."), |
| 1508 | &sethistlist, "set history ", 0, &setlist); |
| 1509 | add_prefix_cmd ("history", class_support, show_history, |
| 1510 | _("Generic command for showing command history parameters."), |
| 1511 | &showhistlist, "show history ", 0, &showlist); |
| 1512 | |
| 1513 | add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\ |
| 1514 | Set history expansion on command input."), _("\ |
| 1515 | Show history expansion on command input."), _("\ |
| 1516 | Without an argument, history expansion is enabled."), |
| 1517 | NULL, |
| 1518 | show_history_expansion_p, |
| 1519 | &sethistlist, &showhistlist); |
| 1520 | |
| 1521 | add_prefix_cmd ("info", class_info, info_command, _("\ |
| 1522 | Generic command for showing things about the program being debugged."), |
| 1523 | &infolist, "info ", 0, &cmdlist); |
| 1524 | add_com_alias ("i", "info", class_info, 1); |
| 1525 | add_com_alias ("inf", "info", class_info, 1); |
| 1526 | |
| 1527 | add_com ("complete", class_obscure, complete_command, |
| 1528 | _("List the completions for the rest of the line as a command.")); |
| 1529 | |
| 1530 | add_prefix_cmd ("show", class_info, show_command, _("\ |
| 1531 | Generic command for showing things about the debugger."), |
| 1532 | &showlist, "show ", 0, &cmdlist); |
| 1533 | /* Another way to get at the same thing. */ |
| 1534 | add_info ("set", show_command, _("Show all GDB settings.")); |
| 1535 | |
| 1536 | add_cmd ("commands", no_set_class, show_commands, _("\ |
| 1537 | Show the history of commands you typed.\n\ |
| 1538 | You can supply a command number to start with, or a `+' to start after\n\ |
| 1539 | the previous command number shown."), |
| 1540 | &showlist); |
| 1541 | |
| 1542 | add_cmd ("version", no_set_class, show_version, |
| 1543 | _("Show what version of GDB this is."), &showlist); |
| 1544 | |
| 1545 | add_com ("while", class_support, while_command, _("\ |
| 1546 | Execute nested commands WHILE the conditional expression is non zero.\n\ |
| 1547 | The conditional expression must follow the word `while' and must in turn be\n\ |
| 1548 | followed by a new line. The nested commands must be entered one per line,\n\ |
| 1549 | and should be terminated by the word `end'.")); |
| 1550 | |
| 1551 | add_com ("if", class_support, if_command, _("\ |
| 1552 | Execute nested commands once IF the conditional expression is non zero.\n\ |
| 1553 | The conditional expression must follow the word `if' and must in turn be\n\ |
| 1554 | followed by a new line. The nested commands must be entered one per line,\n\ |
| 1555 | and should be terminated by the word 'else' or `end'. If an else clause\n\ |
| 1556 | is used, the same rules apply to its nested commands as to the first ones.")); |
| 1557 | |
| 1558 | /* If target is open when baud changes, it doesn't take effect until |
| 1559 | the next open (I think, not sure). */ |
| 1560 | add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\ |
| 1561 | Set baud rate for remote serial I/O."), _("\ |
| 1562 | Show baud rate for remote serial I/O."), _("\ |
| 1563 | This value is used to set the speed of the serial port when debugging\n\ |
| 1564 | using remote targets."), |
| 1565 | NULL, |
| 1566 | show_baud_rate, |
| 1567 | &setlist, &showlist); |
| 1568 | |
| 1569 | add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\ |
| 1570 | Set debugging of remote protocol."), _("\ |
| 1571 | Show debugging of remote protocol."), _("\ |
| 1572 | When enabled, each packet sent or received with the remote target\n\ |
| 1573 | is displayed."), |
| 1574 | NULL, |
| 1575 | show_remote_debug, |
| 1576 | &setdebuglist, &showdebuglist); |
| 1577 | |
| 1578 | add_setshow_integer_cmd ("remotetimeout", no_class, &remote_timeout, _("\ |
| 1579 | Set timeout limit to wait for target to respond."), _("\ |
| 1580 | Show timeout limit to wait for target to respond."), _("\ |
| 1581 | This value is used to set the time limit for gdb to wait for a response\n\ |
| 1582 | from the target."), |
| 1583 | NULL, |
| 1584 | show_remote_timeout, |
| 1585 | &setlist, &showlist); |
| 1586 | |
| 1587 | add_prefix_cmd ("debug", no_class, set_debug, |
| 1588 | _("Generic command for setting gdb debugging flags"), |
| 1589 | &setdebuglist, "set debug ", 0, &setlist); |
| 1590 | |
| 1591 | add_prefix_cmd ("debug", no_class, show_debug, |
| 1592 | _("Generic command for showing gdb debugging flags"), |
| 1593 | &showdebuglist, "show debug ", 0, &showlist); |
| 1594 | |
| 1595 | c = add_com ("shell", class_support, shell_escape, _("\ |
| 1596 | Execute the rest of the line as a shell command.\n\ |
| 1597 | With no arguments, run an inferior shell.")); |
| 1598 | set_cmd_completer (c, filename_completer); |
| 1599 | |
| 1600 | c = add_com ("edit", class_files, edit_command, _("\ |
| 1601 | Edit specified file or function.\n\ |
| 1602 | With no argument, edits file containing most recent line listed.\n\ |
| 1603 | Editing targets can be specified in these ways:\n\ |
| 1604 | FILE:LINENUM, to edit at that line in that file,\n\ |
| 1605 | FUNCTION, to edit at the beginning of that function,\n\ |
| 1606 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
| 1607 | *ADDRESS, to edit at the line containing that address.\n\ |
| 1608 | Uses EDITOR environment variable contents as editor (or ex as default).")); |
| 1609 | |
| 1610 | c->completer = location_completer; |
| 1611 | |
| 1612 | add_com ("list", class_files, list_command, _("\ |
| 1613 | List specified function or line.\n\ |
| 1614 | With no argument, lists ten more lines after or around previous listing.\n\ |
| 1615 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ |
| 1616 | One argument specifies a line, and ten lines are listed around that line.\n\ |
| 1617 | Two arguments with comma between specify starting and ending lines to list.\n\ |
| 1618 | Lines can be specified in these ways:\n\ |
| 1619 | LINENUM, to list around that line in current file,\n\ |
| 1620 | FILE:LINENUM, to list around that line in that file,\n\ |
| 1621 | FUNCTION, to list around beginning of that function,\n\ |
| 1622 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
| 1623 | *ADDRESS, to list around the line containing that address.\n\ |
| 1624 | With two args if one is empty it stands for ten lines away from \ |
| 1625 | the other arg.")); |
| 1626 | |
| 1627 | if (!xdb_commands) |
| 1628 | add_com_alias ("l", "list", class_files, 1); |
| 1629 | else |
| 1630 | add_com_alias ("v", "list", class_files, 1); |
| 1631 | |
| 1632 | if (dbx_commands) |
| 1633 | add_com_alias ("file", "list", class_files, 1); |
| 1634 | |
| 1635 | c = add_com ("disassemble", class_vars, disassemble_command, _("\ |
| 1636 | Disassemble a specified section of memory.\n\ |
| 1637 | Default is the function surrounding the pc of the selected frame.\n\ |
| 1638 | With a /m modifier, source lines are included (if available).\n\ |
| 1639 | With a /r modifier, raw instructions in hex are included.\n\ |
| 1640 | With a single argument, the function surrounding that address is dumped.\n\ |
| 1641 | Two arguments (separated by a comma) are taken as a range of memory to dump,\n\ |
| 1642 | in the form of \"start,end\", or \"start,+length\".")); |
| 1643 | set_cmd_completer (c, location_completer); |
| 1644 | if (xdb_commands) |
| 1645 | add_com_alias ("va", "disassemble", class_xdb, 0); |
| 1646 | |
| 1647 | /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would |
| 1648 | be a really useful feature. Unfortunately, the below wont do |
| 1649 | this. Instead it adds support for the form ``(gdb) ! ls'' |
| 1650 | (i.e. the space is required). If the ``!'' command below is |
| 1651 | added the complains about no ``!'' command would be replaced by |
| 1652 | complains about how the ``!'' command is broken :-) */ |
| 1653 | if (xdb_commands) |
| 1654 | add_com_alias ("!", "shell", class_support, 0); |
| 1655 | |
| 1656 | c = add_com ("make", class_support, make_command, _("\ |
| 1657 | Run the ``make'' program using the rest of the line as arguments.")); |
| 1658 | set_cmd_completer (c, filename_completer); |
| 1659 | add_cmd ("user", no_class, show_user, _("\ |
| 1660 | Show definitions of user defined commands.\n\ |
| 1661 | Argument is the name of the user defined command.\n\ |
| 1662 | With no argument, show definitions of all user defined commands."), &showlist); |
| 1663 | add_com ("apropos", class_support, apropos_command, |
| 1664 | _("Search for commands matching a REGEXP")); |
| 1665 | |
| 1666 | add_setshow_integer_cmd ("max-user-call-depth", no_class, |
| 1667 | &max_user_call_depth, _("\ |
| 1668 | Set the max call depth for user-defined commands."), _("\ |
| 1669 | Show the max call depth for user-defined commands."), NULL, |
| 1670 | NULL, |
| 1671 | show_max_user_call_depth, |
| 1672 | &setlist, &showlist); |
| 1673 | |
| 1674 | add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\ |
| 1675 | Set tracing of GDB CLI commands."), _("\ |
| 1676 | Show state of GDB CLI command tracing."), _("\ |
| 1677 | When 'on', each command is displayed as it is executed."), |
| 1678 | NULL, |
| 1679 | NULL, |
| 1680 | &setlist, &showlist); |
| 1681 | } |