3 Copyright (C) 2000-2019 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
21 #include "arch-utils.h"
22 #include "readline/readline.h"
23 #include "readline/tilde.h"
24 #include "completer.h"
25 #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
26 #include "common/gdb_wait.h" /* For shell escape implementation. */
27 #include "gdb_regex.h" /* Used by apropos_command. */
28 #include "gdb_vfork.h"
30 #include "expression.h"
34 #include "filenames.h" /* For DOSish file names. */
38 #include "tracepoint.h"
39 #include "common/filestuff.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"
52 #include "extension.h"
53 #include "common/pathstuff.h"
56 #include "tui/tui.h" /* For tui_active et.al. */
63 /* Prototypes for local utility functions */
65 static void print_sal_location (const symtab_and_line &sal);
67 static void ambiguous_line_spec (gdb::array_view<const symtab_and_line> sals,
68 const char *format, ...)
69 ATTRIBUTE_PRINTF (2, 3);
71 static void filter_sals (std::vector<symtab_and_line> &);
74 /* Limit the call depth of user-defined commands */
75 unsigned int max_user_call_depth;
77 /* Define all cmd_list_elements. */
79 /* Chain containing all defined commands. */
81 struct cmd_list_element *cmdlist;
83 /* Chain containing all defined info subcommands. */
85 struct cmd_list_element *infolist;
87 /* Chain containing all defined enable subcommands. */
89 struct cmd_list_element *enablelist;
91 /* Chain containing all defined disable subcommands. */
93 struct cmd_list_element *disablelist;
95 /* Chain containing all defined stop subcommands. */
97 struct cmd_list_element *stoplist;
99 /* Chain containing all defined delete subcommands. */
101 struct cmd_list_element *deletelist;
103 /* Chain containing all defined detach subcommands. */
105 struct cmd_list_element *detachlist;
107 /* Chain containing all defined kill subcommands. */
109 struct cmd_list_element *killlist;
111 /* Chain containing all defined set subcommands */
113 struct cmd_list_element *setlist;
115 /* Chain containing all defined unset subcommands */
117 struct cmd_list_element *unsetlist;
119 /* Chain containing all defined show subcommands. */
121 struct cmd_list_element *showlist;
123 /* Chain containing all defined \"set history\". */
125 struct cmd_list_element *sethistlist;
127 /* Chain containing all defined \"show history\". */
129 struct cmd_list_element *showhistlist;
131 /* Chain containing all defined \"unset history\". */
133 struct cmd_list_element *unsethistlist;
135 /* Chain containing all defined maintenance subcommands. */
137 struct cmd_list_element *maintenancelist;
139 /* Chain containing all defined "maintenance info" subcommands. */
141 struct cmd_list_element *maintenanceinfolist;
143 /* Chain containing all defined "maintenance print" subcommands. */
145 struct cmd_list_element *maintenanceprintlist;
147 /* Chain containing all defined "maintenance check" subcommands. */
149 struct cmd_list_element *maintenancechecklist;
151 struct cmd_list_element *setprintlist;
153 struct cmd_list_element *showprintlist;
155 struct cmd_list_element *setdebuglist;
157 struct cmd_list_element *showdebuglist;
159 struct cmd_list_element *setchecklist;
161 struct cmd_list_element *showchecklist;
163 /* Command tracing state. */
165 int source_verbose = 0;
166 int trace_commands = 0;
168 /* 'script-extension' option support. */
170 static const char script_ext_off[] = "off";
171 static const char script_ext_soft[] = "soft";
172 static const char script_ext_strict[] = "strict";
174 static const char *const script_ext_enums[] = {
181 static const char *script_ext_mode = script_ext_soft;
183 /* Utility used everywhere when at least one argument is needed and
187 error_no_arg (const char *why)
189 error (_("Argument required (%s)."), why);
192 /* The "info" command is defined as a prefix, with allow_unknown = 0.
193 Therefore, its own definition is called only for "info" with no
197 info_command (const char *arg, int from_tty)
199 printf_unfiltered (_("\"info\" must be followed by "
200 "the name of an info command.\n"));
201 help_list (infolist, "info ", all_commands, gdb_stdout);
204 /* The "show" command with no arguments shows all the settings. */
207 show_command (const char *arg, int from_tty)
209 cmd_show_list (showlist, from_tty, "");
213 /* Provide documentation on command or list given by COMMAND. FROM_TTY
217 help_command (const char *command, int from_tty)
219 help_cmd (command, gdb_stdout);
223 /* Note: The "complete" command is used by Emacs to implement completion.
224 [Is that why this function writes output with *_unfiltered?] */
227 complete_command (const char *arg, int from_tty)
231 if (max_completions == 0)
233 /* Only print this for non-mi frontends. An MI frontend may not
234 be able to handle this. */
235 if (!current_uiout->is_mi_like_p ())
237 printf_unfiltered (_("max-completions is zero,"
238 " completion is disabled.\n"));
246 completion_tracker tracker_handle_brkchars;
247 completion_tracker tracker_handle_completions;
248 completion_tracker *tracker;
250 int quote_char = '\0';
255 word = completion_find_completion_word (tracker_handle_brkchars,
258 /* Completers that provide a custom word point in the
259 handle_brkchars phase also compute their completions then.
260 Completers that leave the completion word handling to readline
261 must be called twice. */
262 if (tracker_handle_brkchars.use_custom_word_point ())
263 tracker = &tracker_handle_brkchars;
266 complete_line (tracker_handle_completions, word, arg, strlen (arg));
267 tracker = &tracker_handle_completions;
270 CATCH (ex, RETURN_MASK_ALL)
276 std::string arg_prefix (arg, word - arg);
278 completion_result result
279 = tracker->build_completion_result (word, word - arg, strlen (arg));
281 if (result.number_matches != 0)
283 if (result.number_matches == 1)
284 printf_unfiltered ("%s%s\n", arg_prefix.c_str (), result.match_list[0]);
287 result.sort_match_list ();
289 for (size_t i = 0; i < result.number_matches; i++)
291 printf_unfiltered ("%s%s",
293 result.match_list[i + 1]);
295 printf_unfiltered ("%c", quote_char);
296 printf_unfiltered ("\n");
300 if (result.number_matches == max_completions)
302 /* ARG_PREFIX and WORD are included in the output so that emacs
303 will include the message in the output. */
304 printf_unfiltered (_("%s%s %s\n"),
305 arg_prefix.c_str (), word,
306 get_max_completions_reached_message ());
312 is_complete_command (struct cmd_list_element *c)
314 return cmd_cfunc_eq (c, complete_command);
318 show_version (const char *args, int from_tty)
320 print_gdb_version (gdb_stdout, true);
321 printf_filtered ("\n");
325 show_configuration (const char *args, int from_tty)
327 print_gdb_configuration (gdb_stdout);
330 /* Handle the quit command. */
333 quit_command (const char *args, int from_tty)
337 /* An optional expression may be used to cause gdb to terminate with
338 the value of that expression. */
341 struct value *val = parse_and_eval (args);
343 exit_code = (int) value_as_long (val);
346 if (!quit_confirm ())
347 error (_("Not confirmed."));
349 query_if_trace_running (from_tty);
351 quit_force (args ? &exit_code : NULL, from_tty);
355 pwd_command (const char *args, int from_tty)
358 error (_("The \"pwd\" command does not take an argument: %s"), args);
360 gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0));
363 error (_("Error finding name of working directory: %s"),
364 safe_strerror (errno));
366 if (strcmp (cwd.get (), current_directory) != 0)
367 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
368 current_directory, cwd.get ());
370 printf_unfiltered (_("Working directory %s.\n"), current_directory);
374 cd_command (const char *dir, int from_tty)
377 /* Found something other than leading repetitions of "/..". */
381 /* If the new directory is absolute, repeat is a no-op; if relative,
382 repeat might be useful but is more likely to be a mistake. */
385 gdb::unique_xmalloc_ptr<char> dir_holder
386 (tilde_expand (dir != NULL ? dir : "~"));
387 dir = dir_holder.get ();
390 perror_with_name (dir);
392 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
393 /* There's too much mess with DOSish names like "d:", "d:.",
394 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
395 simply get the canonicalized name of the current directory. */
396 gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0));
401 if (IS_DIR_SEPARATOR (dir[len - 1]))
403 /* Remove the trailing slash unless this is a root directory
404 (including a drive letter on non-Unix systems). */
405 if (!(len == 1) /* "/" */
406 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
407 && !(len == 3 && dir[1] == ':') /* "d:/" */
413 dir_holder.reset (savestring (dir, len));
414 if (IS_ABSOLUTE_PATH (dir_holder.get ()))
416 xfree (current_directory);
417 current_directory = dir_holder.release ();
421 if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
422 current_directory = concat (current_directory, dir_holder.get (),
425 current_directory = concat (current_directory, SLASH_STRING,
426 dir_holder.get (), (char *) NULL);
429 /* Now simplify any occurrences of `.' and `..' in the pathname. */
432 for (p = current_directory; *p;)
434 if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
435 && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
436 memmove (p, p + 2, strlen (p + 2) + 1);
437 else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
438 && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
442 /* Search backwards for the directory just before the "/.."
443 and obliterate it and the "/..". */
446 while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
449 if (q == current_directory)
450 /* current_directory is
451 a relative pathname ("can't happen"--leave it alone). */
455 memmove (q - 1, p + 3, strlen (p + 3) + 1);
460 /* We are dealing with leading repetitions of "/..", for
461 example "/../..", which is the Mach super-root. */
471 forget_cached_source_info ();
474 pwd_command ((char *) 0, 1);
477 /* Show the current value of the 'script-extension' option. */
480 show_script_ext_mode (struct ui_file *file, int from_tty,
481 struct cmd_list_element *c, const char *value)
483 fprintf_filtered (file,
484 _("Script filename extension recognition is \"%s\".\n"),
488 /* Try to open SCRIPT_FILE.
489 If successful, the full path name is stored in *FULL_PATHP,
490 and the stream is returned.
491 If not successful, return NULL; errno is set for the last file
494 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
495 search for it in the source search path. */
497 gdb::optional<open_script>
498 find_and_open_script (const char *script_file, int search_path)
501 openp_flags search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH;
502 gdb::optional<open_script> opened;
504 gdb::unique_xmalloc_ptr<char> file (tilde_expand (script_file));
507 search_flags |= OPF_SEARCH_IN_PATH;
509 /* Search for and open 'file' on the search path used for source
510 files. Put the full location in *FULL_PATHP. */
511 gdb::unique_xmalloc_ptr<char> full_path;
512 fd = openp (source_path, search_flags,
513 file.get (), O_RDONLY, &full_path);
518 FILE *result = fdopen (fd, FOPEN_RT);
521 int save_errno = errno;
527 opened.emplace (gdb_file_up (result), std::move (full_path));
532 /* Load script FILE, which has already been opened as STREAM.
533 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
534 This is provided as FILE may have been found via the source search path.
535 An important thing to note here is that FILE may be a symlink to a file
536 with a different or non-existing suffix, and thus one cannot infer the
537 extension language from FILE_TO_OPEN. */
540 source_script_from_stream (FILE *stream, const char *file,
541 const char *file_to_open)
543 if (script_ext_mode != script_ext_off)
545 const struct extension_language_defn *extlang
546 = get_ext_lang_of_file (file);
550 if (ext_lang_present_p (extlang))
552 script_sourcer_func *sourcer
553 = ext_lang_script_sourcer (extlang);
555 gdb_assert (sourcer != NULL);
556 sourcer (extlang, stream, file_to_open);
559 else if (script_ext_mode == script_ext_soft)
561 /* Assume the file is a gdb script.
562 This is handled below. */
565 throw_ext_lang_unsupported (extlang);
569 script_from_file (stream, file);
572 /* Worker to perform the "source" command.
574 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
575 search for it in the source search path. */
578 source_script_with_search (const char *file, int from_tty, int search_path)
581 if (file == NULL || *file == 0)
582 error (_("source command requires file name of file to source."));
584 gdb::optional<open_script> opened = find_and_open_script (file, search_path);
587 /* The script wasn't found, or was otherwise inaccessible.
588 If the source command was invoked interactively, throw an
589 error. Otherwise (e.g. if it was invoked by a script),
590 just emit a warning, rather than cause an error. */
592 perror_with_name (file);
595 perror_warning_with_name (file);
600 /* The python support reopens the file, so we need to pass full_path here
601 in case the file was found on the search path. It's useful to do this
602 anyway so that error messages show the actual file used. But only do
603 this if we (may have) used search_path, as printing the full path in
604 errors for the non-search case can be more noise than signal. */
605 source_script_from_stream (opened->stream.get (), file,
606 search_path ? opened->full_path.get () : file);
609 /* Wrapper around source_script_with_search to export it to main.c
610 for use in loading .gdbinit scripts. */
613 source_script (const char *file, int from_tty)
615 source_script_with_search (file, from_tty, 0);
619 source_command (const char *args, int from_tty)
621 const char *file = args;
624 scoped_restore save_source_verbose = make_scoped_restore (&source_verbose);
626 /* -v causes the source command to run in verbose mode.
627 -s causes the file to be searched in the source search path,
628 even if the file name contains a '/'.
629 We still have to be able to handle filenames with spaces in a
630 backward compatible way, so buildargv is not appropriate. */
634 while (args[0] != '\0')
636 /* Make sure leading white space does not break the
638 args = skip_spaces (args);
643 if (args[1] == 'v' && isspace (args[2]))
647 /* Skip passed -v. */
650 else if (args[1] == 's' && isspace (args[2]))
654 /* Skip passed -s. */
661 file = skip_spaces (args);
664 source_script_with_search (file, from_tty, search_path);
669 echo_command (const char *text, int from_tty)
671 const char *p = text;
675 while ((c = *p++) != '\0')
679 /* \ at end of argument is used after spaces
680 so they won't be lost. */
684 c = parse_escape (get_current_arch (), &p);
686 printf_filtered ("%c", c);
689 printf_filtered ("%c", c);
692 reset_terminal_style (gdb_stdout);
694 /* Force this output to appear now. */
696 gdb_flush (gdb_stdout);
700 shell_escape (const char *arg, int from_tty)
702 #if defined(CANT_FORK) || \
703 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
704 /* If ARG is NULL, they want an inferior shell, but `system' just
705 reports if the shell is available when passed a NULL arg. */
706 int rc = system (arg ? arg : "");
709 arg = "inferior shell";
713 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
714 safe_strerror (errno));
715 gdb_flush (gdb_stderr);
719 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
720 gdb_flush (gdb_stderr);
723 /* Make sure to return to the directory GDB thinks it is, in case
724 the shell command we just ran changed it. */
725 chdir (current_directory);
727 #else /* Can fork. */
730 if ((pid = vfork ()) == 0)
732 const char *p, *user_shell = get_shell ();
736 /* Get the name of the shell for arg0. */
737 p = lbasename (user_shell);
740 execl (user_shell, p, (char *) 0);
742 execl (user_shell, p, "-c", arg, (char *) 0);
744 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
745 safe_strerror (errno));
746 gdb_flush (gdb_stderr);
751 waitpid (pid, &status, 0);
753 error (_("Fork failed"));
754 #endif /* Can fork. */
757 /* Implementation of the "shell" command. */
760 shell_command (const char *arg, int from_tty)
762 shell_escape (arg, from_tty);
766 edit_command (const char *arg, int from_tty)
768 struct symtab_and_line sal;
774 /* Pull in the current default source line if necessary. */
777 set_default_source_symtab_and_line ();
778 sal = get_current_source_symtab_and_line ();
781 /* Bare "edit" edits file with present line. */
786 error (_("No default source file yet."));
787 sal.line += get_lines_to_list () / 2;
793 /* Now should only be one argument -- decode it in SAL. */
795 event_location_up location = string_to_event_location (&arg1,
797 std::vector<symtab_and_line> sals = decode_line_1 (location.get (),
798 DECODE_LINE_LIST_MODE,
807 if (sals.size () > 1)
809 ambiguous_line_spec (sals,
810 _("Specified line is ambiguous:\n"));
817 error (_("Junk at end of line specification."));
819 /* If line was specified by address, first print exactly which
820 line, and which file. In this case, sal.symtab == 0 means
821 address is outside of all known source files, not that user
822 failed to give a filename. */
825 struct gdbarch *gdbarch;
828 error (_("No source file for address %s."),
829 paddress (get_current_arch (), sal.pc));
831 gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab));
832 sym = find_pc_function (sal.pc);
834 printf_filtered ("%s is in %s (%s:%d).\n",
835 paddress (gdbarch, sal.pc),
836 SYMBOL_PRINT_NAME (sym),
837 symtab_to_filename_for_display (sal.symtab),
840 printf_filtered ("%s is at %s:%d.\n",
841 paddress (gdbarch, sal.pc),
842 symtab_to_filename_for_display (sal.symtab),
846 /* If what was given does not imply a symtab, it must be an
847 undebuggable symbol which means no source code. */
850 error (_("No line number known for %s."), arg);
853 if ((editor = getenv ("EDITOR")) == NULL)
856 fn = symtab_to_fullname (sal.symtab);
858 /* Quote the file name, in case it has whitespace or other special
860 p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
861 shell_escape (p, from_tty);
866 list_command (const char *arg, int from_tty)
876 /* Pull in the current default source line if necessary. */
877 if (arg == NULL || ((arg[0] == '+' || arg[0] == '-') && arg[1] == '\0'))
879 set_default_source_symtab_and_line ();
880 symtab_and_line cursal = get_current_source_symtab_and_line ();
882 /* If this is the first "list" since we've set the current
883 source line, center the listing around that line. */
884 if (get_first_line_listed () == 0)
888 first = std::max (cursal.line - get_lines_to_list () / 2, 1);
890 /* A small special case --- if listing backwards, and we
891 should list only one line, list the preceding line,
892 instead of the exact line we've just shown after e.g.,
893 stopping for a breakpoint. */
894 if (arg != NULL && arg[0] == '-'
895 && get_lines_to_list () == 1 && first > 1)
898 print_source_lines (cursal.symtab, source_lines_range (first), 0);
901 /* "l" or "l +" lists next ten lines. */
902 else if (arg == NULL || arg[0] == '+')
903 print_source_lines (cursal.symtab,
904 source_lines_range (cursal.line), 0);
906 /* "l -" lists previous ten lines, the ones before the ten just
908 else if (arg[0] == '-')
910 if (get_first_line_listed () == 1)
911 error (_("Already at the start of %s."),
912 symtab_to_filename_for_display (cursal.symtab));
913 source_lines_range range (get_first_line_listed (),
914 source_lines_range::BACKWARD);
915 print_source_lines (cursal.symtab, range, 0);
921 /* Now if there is only one argument, decode it in SAL
923 If there are two arguments, decode them in SAL and SAL_END
924 and clear NO_END; however, if one of the arguments is blank,
925 set DUMMY_BEG or DUMMY_END to record that fact. */
927 if (!have_full_symbols () && !have_partial_symbols ())
928 error (_("No symbol table is loaded. Use the \"file\" command."));
930 std::vector<symtab_and_line> sals;
931 symtab_and_line sal, sal_end;
938 event_location_up location = string_to_event_location (&arg1,
940 sals = decode_line_1 (location.get (), DECODE_LINE_LIST_MODE,
952 /* Record whether the BEG arg is all digits. */
954 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
955 linenum_beg = (p == arg1);
957 /* Save the range of the first argument, in case we need to let the
958 user know it was ambiguous. */
959 const char *beg = arg;
960 size_t beg_len = arg1 - beg;
962 while (*arg1 == ' ' || *arg1 == '\t')
967 if (sals.size () > 1)
969 ambiguous_line_spec (sals,
970 _("Specified first line '%.*s' is ambiguous:\n"),
975 while (*arg1 == ' ' || *arg1 == '\t')
981 /* Save the last argument, in case we need to let the user
982 know it was ambiguous. */
983 const char *end_arg = arg1;
985 event_location_up location
986 = string_to_event_location (&arg1, current_language);
988 std::vector<symtab_and_line> sals_end
990 ? decode_line_1 (location.get (), DECODE_LINE_LIST_MODE,
992 : decode_line_1 (location.get (), DECODE_LINE_LIST_MODE,
993 NULL, sal.symtab, sal.line));
995 filter_sals (sals_end);
996 if (sals_end.empty ())
998 if (sals_end.size () > 1)
1000 ambiguous_line_spec (sals_end,
1001 _("Specified last line '%s' is ambiguous:\n"),
1005 sal_end = sals_end[0];
1010 error (_("Junk at end of line specification."));
1012 if (!no_end && !dummy_beg && !dummy_end
1013 && sal.symtab != sal_end.symtab)
1014 error (_("Specified first and last lines are in different files."));
1015 if (dummy_beg && dummy_end)
1016 error (_("Two empty args do not say what lines to list."));
1018 /* If line was specified by address,
1019 first print exactly which line, and which file.
1021 In this case, sal.symtab == 0 means address is outside of all
1022 known source files, not that user failed to give a filename. */
1025 struct gdbarch *gdbarch;
1027 if (sal.symtab == 0)
1028 error (_("No source file for address %s."),
1029 paddress (get_current_arch (), sal.pc));
1031 gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab));
1032 sym = find_pc_function (sal.pc);
1034 printf_filtered ("%s is in %s (%s:%d).\n",
1035 paddress (gdbarch, sal.pc),
1036 SYMBOL_PRINT_NAME (sym),
1037 symtab_to_filename_for_display (sal.symtab), sal.line);
1039 printf_filtered ("%s is at %s:%d.\n",
1040 paddress (gdbarch, sal.pc),
1041 symtab_to_filename_for_display (sal.symtab), sal.line);
1044 /* If line was not specified by just a line number, and it does not
1045 imply a symtab, it must be an undebuggable symbol which means no
1048 if (!linenum_beg && sal.symtab == 0)
1049 error (_("No line number known for %s."), arg);
1051 /* If this command is repeated with RET,
1052 turn it into the no-arg variant. */
1055 set_repeat_arguments ("");
1057 if (dummy_beg && sal_end.symtab == 0)
1058 error (_("No default source file yet. Do \"help list\"."));
1061 source_lines_range range (sal_end.line + 1,
1062 source_lines_range::BACKWARD);
1063 print_source_lines (sal_end.symtab, range, 0);
1065 else if (sal.symtab == 0)
1066 error (_("No default source file yet. Do \"help list\"."));
1069 for (int i = 0; i < sals.size (); i++)
1072 int first_line = sal.line - get_lines_to_list () / 2;
1075 if (sals.size () > 1)
1076 print_sal_location (sal);
1077 print_source_lines (sal.symtab, source_lines_range (first_line), 0);
1081 print_source_lines (sal.symtab, source_lines_range (sal.line), 0);
1083 print_source_lines (sal.symtab,
1084 source_lines_range (sal.line, (sal_end.line + 1)),
1088 /* Subroutine of disassemble_command to simplify it.
1089 Perform the disassembly.
1090 NAME is the name of the function if known, or NULL.
1091 [LOW,HIGH) are the range of addresses to disassemble.
1092 BLOCK is the block to disassemble; it needs to be provided
1093 when non-contiguous blocks are disassembled; otherwise
1095 MIXED is non-zero to print source with the assembler. */
1098 print_disassembly (struct gdbarch *gdbarch, const char *name,
1099 CORE_ADDR low, CORE_ADDR high,
1100 const struct block *block,
1101 gdb_disassembly_flags flags)
1104 if (!tui_is_window_visible (DISASSEM_WIN))
1107 printf_filtered ("Dump of assembler code ");
1109 printf_filtered ("for function %s:\n", name);
1110 if (block == nullptr || BLOCK_CONTIGUOUS_P (block))
1113 printf_filtered ("from %s to %s:\n",
1114 paddress (gdbarch, low), paddress (gdbarch, high));
1116 /* Dump the specified range. */
1117 gdb_disassembly (gdbarch, current_uiout, flags, -1, low, high);
1121 for (int i = 0; i < BLOCK_NRANGES (block); i++)
1123 CORE_ADDR range_low = BLOCK_RANGE_START (block, i);
1124 CORE_ADDR range_high = BLOCK_RANGE_END (block, i);
1125 printf_filtered (_("Address range %s to %s:\n"),
1126 paddress (gdbarch, range_low),
1127 paddress (gdbarch, range_high));
1128 gdb_disassembly (gdbarch, current_uiout, flags, -1,
1129 range_low, range_high);
1132 printf_filtered ("End of assembler dump.\n");
1133 gdb_flush (gdb_stdout);
1138 tui_show_assembly (gdbarch, low);
1143 /* Subroutine of disassemble_command to simplify it.
1144 Print a disassembly of the current function according to FLAGS. */
1147 disassemble_current_function (gdb_disassembly_flags flags)
1149 struct frame_info *frame;
1150 struct gdbarch *gdbarch;
1151 CORE_ADDR low, high, pc;
1153 const struct block *block;
1155 frame = get_selected_frame (_("No frame selected."));
1156 gdbarch = get_frame_arch (frame);
1157 pc = get_frame_address_in_block (frame);
1158 if (find_pc_partial_function (pc, &name, &low, &high, &block) == 0)
1159 error (_("No function contains program counter for selected frame."));
1161 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1164 /* FIXME: cagney/2004-02-07: This should be an observer. */
1165 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1167 low += gdbarch_deprecated_function_start_offset (gdbarch);
1169 print_disassembly (gdbarch, name, low, high, block, flags);
1172 /* Dump a specified section of assembly code.
1176 - dump the assembly code for the function of the current pc
1177 disassemble [/mrs] addr
1178 - dump the assembly code for the function at ADDR
1179 disassemble [/mrs] low,high
1180 disassemble [/mrs] low,+length
1181 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1183 A /m modifier will include source code with the assembly in a
1184 "source centric" view. This view lists only the file of the first insn,
1185 even if other source files are involved (e.g., inlined functions), and
1186 the output is in source order, even with optimized code. This view is
1187 considered deprecated as it hasn't been useful in practice.
1189 A /r modifier will include raw instructions in hex with the assembly.
1191 A /s modifier will include source code with the assembly, like /m, with
1192 two important differences:
1193 1) The output is still in pc address order.
1194 2) File names and contents for all relevant source files are displayed. */
1197 disassemble_command (const char *arg, int from_tty)
1199 struct gdbarch *gdbarch = get_current_arch ();
1200 CORE_ADDR low, high;
1203 gdb_disassembly_flags flags;
1205 const struct block *block = nullptr;
1216 error (_("Missing modifier."));
1218 while (*p && ! isspace (*p))
1223 flags |= DISASSEMBLY_SOURCE_DEPRECATED;
1226 flags |= DISASSEMBLY_RAW_INSN;
1229 flags |= DISASSEMBLY_SOURCE;
1232 error (_("Invalid disassembly modifier."));
1236 p = skip_spaces (p);
1239 if ((flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE))
1240 == (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE))
1241 error (_("Cannot specify both /m and /s."));
1245 flags |= DISASSEMBLY_OMIT_FNAME;
1246 disassemble_current_function (flags);
1250 pc = value_as_address (parse_to_comma_and_eval (&p));
1256 if (find_pc_partial_function (pc, &name, &low, &high, &block) == 0)
1257 error (_("No function contains specified address."));
1259 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1262 /* FIXME: cagney/2004-02-07: This should be an observer. */
1263 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1265 low += gdbarch_deprecated_function_start_offset (gdbarch);
1266 flags |= DISASSEMBLY_OMIT_FNAME;
1270 /* Two arguments. */
1273 p = skip_spaces (p);
1279 high = parse_and_eval_address (p);
1284 print_disassembly (gdbarch, name, low, high, block, flags);
1288 make_command (const char *arg, int from_tty)
1291 shell_escape ("make", from_tty);
1294 std::string cmd = std::string ("make ") + arg;
1296 shell_escape (cmd.c_str (), from_tty);
1301 show_user (const char *args, int from_tty)
1303 struct cmd_list_element *c;
1304 extern struct cmd_list_element *cmdlist;
1308 const char *comname = args;
1310 c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1311 if (!cli_user_command_p (c))
1312 error (_("Not a user command."));
1313 show_user_1 (c, "", args, gdb_stdout);
1317 for (c = cmdlist; c; c = c->next)
1319 if (cli_user_command_p (c) || c->prefixlist != NULL)
1320 show_user_1 (c, "", c->name, gdb_stdout);
1325 /* Search through names of commands and documentations for a certain
1326 regular expression. */
1329 apropos_command (const char *searchstr, int from_tty)
1331 if (searchstr == NULL)
1332 error (_("REGEXP string is empty"));
1334 compiled_regex pattern (searchstr, REG_ICASE,
1335 _("Error in regular expression"));
1337 apropos_cmd (gdb_stdout, cmdlist, pattern, "");
1340 /* Subroutine of alias_command to simplify it.
1341 Return the first N elements of ARGV flattened back to a string
1342 with a space separating each element.
1343 ARGV may not be NULL.
1344 This does not take care of quoting elements in case they contain spaces
1348 argv_to_string (char **argv, int n)
1353 gdb_assert (argv != NULL);
1354 gdb_assert (n >= 0 && n <= countargv (argv));
1356 for (i = 0; i < n; ++i)
1366 /* Subroutine of alias_command to simplify it.
1367 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1370 valid_command_p (const char *command)
1372 struct cmd_list_element *c;
1374 c = lookup_cmd_1 (& command, cmdlist, NULL, 1);
1376 if (c == NULL || c == (struct cmd_list_element *) -1)
1379 /* This is the slightly tricky part.
1380 lookup_cmd_1 will return a pointer to the last part of COMMAND
1381 to match, leaving COMMAND pointing at the remainder. */
1382 while (*command == ' ' || *command == '\t')
1384 return *command == '\0';
1387 /* Called when "alias" was incorrectly used. */
1390 alias_usage_error (void)
1392 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1395 /* Make an alias of an existing command. */
1398 alias_command (const char *args, int from_tty)
1400 int i, alias_argc, command_argc;
1401 int abbrev_flag = 0;
1403 const char *alias, *command;
1405 if (args == NULL || strchr (args, '=') == NULL)
1406 alias_usage_error ();
1408 equals = strchr (args, '=');
1409 std::string args2 (args, equals - args);
1411 gdb_argv built_alias_argv (args2.c_str ());
1412 gdb_argv command_argv (equals + 1);
1414 char **alias_argv = built_alias_argv.get ();
1415 while (alias_argv[0] != NULL)
1417 if (strcmp (alias_argv[0], "-a") == 0)
1422 else if (strcmp (alias_argv[0], "--") == 0)
1431 if (alias_argv[0] == NULL || command_argv[0] == NULL
1432 || *alias_argv[0] == '\0' || *command_argv[0] == '\0')
1433 alias_usage_error ();
1435 for (i = 0; alias_argv[i] != NULL; ++i)
1437 if (! valid_user_defined_cmd_name_p (alias_argv[i]))
1440 error (_("Invalid command name: %s"), alias_argv[i]);
1442 error (_("Invalid command element name: %s"), alias_argv[i]);
1446 alias_argc = countargv (alias_argv);
1447 command_argc = command_argv.count ();
1449 /* COMMAND must exist.
1450 Reconstruct the command to remove any extraneous spaces,
1451 for better error messages. */
1452 std::string command_string (argv_to_string (command_argv.get (),
1454 command = command_string.c_str ();
1455 if (! valid_command_p (command))
1456 error (_("Invalid command to alias to: %s"), command);
1458 /* ALIAS must not exist. */
1459 std::string alias_string (argv_to_string (alias_argv, alias_argc));
1460 alias = alias_string.c_str ();
1461 if (valid_command_p (alias))
1462 error (_("Alias already exists: %s"), alias);
1464 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1465 Example: alias spe = set print elements
1467 Otherwise ALIAS and COMMAND must have the same number of words,
1468 and every word except the last must match; and the last word of
1469 ALIAS is made an alias of the last word of COMMAND.
1470 Example: alias set print elms = set pr elem
1471 Note that unambiguous abbreviations are allowed. */
1473 if (alias_argc == 1)
1475 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1476 add_com_alias (xstrdup (alias_argv[0]), command, class_alias,
1481 const char *alias_prefix, *command_prefix;
1482 struct cmd_list_element *c_alias, *c_command;
1484 if (alias_argc != command_argc)
1485 error (_("Mismatched command length between ALIAS and COMMAND."));
1487 /* Create copies of ALIAS and COMMAND without the last word,
1488 and use that to verify the leading elements match. */
1489 std::string alias_prefix_string (argv_to_string (alias_argv,
1491 std::string command_prefix_string (argv_to_string (alias_argv,
1493 alias_prefix = alias_prefix_string.c_str ();
1494 command_prefix = command_prefix_string.c_str ();
1496 c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1);
1497 /* We've already tried to look up COMMAND. */
1498 gdb_assert (c_command != NULL
1499 && c_command != (struct cmd_list_element *) -1);
1500 gdb_assert (c_command->prefixlist != NULL);
1501 c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1);
1502 if (c_alias != c_command)
1503 error (_("ALIAS and COMMAND prefixes do not match."));
1505 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1506 add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]),
1507 command_argv[command_argc - 1],
1508 class_alias, abbrev_flag, c_command->prefixlist);
1512 /* Print the file / line number / symbol name of the location
1513 specified by SAL. */
1516 print_sal_location (const symtab_and_line &sal)
1518 scoped_restore_current_program_space restore_pspace;
1519 set_current_program_space (sal.pspace);
1521 const char *sym_name = NULL;
1522 if (sal.symbol != NULL)
1523 sym_name = SYMBOL_PRINT_NAME (sal.symbol);
1524 printf_filtered (_("file: \"%s\", line number: %d, symbol: \"%s\"\n"),
1525 symtab_to_filename_for_display (sal.symtab),
1526 sal.line, sym_name != NULL ? sym_name : "???");
1529 /* Print a list of files and line numbers which a user may choose from
1530 in order to list a function which was specified ambiguously (as
1531 with `list classname::overloadedfuncname', for example). The SALS
1532 array provides the filenames and line numbers. FORMAT is a
1533 printf-style format string used to tell the user what was
1537 ambiguous_line_spec (gdb::array_view<const symtab_and_line> sals,
1538 const char *format, ...)
1541 va_start (ap, format);
1542 vprintf_filtered (format, ap);
1545 for (const auto &sal : sals)
1546 print_sal_location (sal);
1549 /* Comparison function for filter_sals. Returns a qsort-style
1553 cmp_symtabs (const symtab_and_line &sala, const symtab_and_line &salb)
1555 const char *dira = SYMTAB_DIRNAME (sala.symtab);
1556 const char *dirb = SYMTAB_DIRNAME (salb.symtab);
1564 else if (dirb == NULL)
1571 r = filename_cmp (dira, dirb);
1576 r = filename_cmp (sala.symtab->filename, salb.symtab->filename);
1580 if (sala.line < salb.line)
1582 return sala.line == salb.line ? 0 : 1;
1585 /* Remove any SALs that do not match the current program space, or
1586 which appear to be "file:line" duplicates. */
1589 filter_sals (std::vector<symtab_and_line> &sals)
1591 /* Remove SALs that do not match. */
1592 auto from = std::remove_if (sals.begin (), sals.end (),
1593 [&] (const symtab_and_line &sal)
1594 { return (sal.pspace != current_program_space || sal.symtab == NULL); });
1597 std::sort (sals.begin (), from,
1598 [] (const symtab_and_line &sala, const symtab_and_line &salb)
1599 { return cmp_symtabs (sala, salb) < 0; });
1601 from = std::unique (sals.begin (), from,
1602 [&] (const symtab_and_line &sala,
1603 const symtab_and_line &salb)
1604 { return cmp_symtabs (sala, salb) == 0; });
1606 sals.erase (from, sals.end ());
1610 set_debug (const char *arg, int from_tty)
1612 printf_unfiltered (_("\"set debug\" must be followed by "
1613 "the name of a debug subcommand.\n"));
1614 help_list (setdebuglist, "set debug ", all_commands, gdb_stdout);
1618 show_debug (const char *args, int from_tty)
1620 cmd_show_list (showdebuglist, from_tty, "");
1624 init_cmd_lists (void)
1626 max_user_call_depth = 1024;
1630 show_info_verbose (struct ui_file *file, int from_tty,
1631 struct cmd_list_element *c,
1635 fprintf_filtered (file,
1636 _("Verbose printing of informational messages is %s.\n"),
1639 fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1643 show_history_expansion_p (struct ui_file *file, int from_tty,
1644 struct cmd_list_element *c, const char *value)
1646 fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1651 show_remote_debug (struct ui_file *file, int from_tty,
1652 struct cmd_list_element *c, const char *value)
1654 fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1659 show_remote_timeout (struct ui_file *file, int from_tty,
1660 struct cmd_list_element *c, const char *value)
1662 fprintf_filtered (file,
1663 _("Timeout limit to wait for target to respond is %s.\n"),
1668 show_max_user_call_depth (struct ui_file *file, int from_tty,
1669 struct cmd_list_element *c, const char *value)
1671 fprintf_filtered (file,
1672 _("The max call depth for user-defined commands is %s.\n"),
1677 _initialize_cli_cmds (void)
1679 struct cmd_list_element *c;
1681 /* Define the classes of commands.
1682 They will appear in the help list in alphabetical order. */
1684 add_cmd ("internals", class_maintenance, _("\
1685 Maintenance commands.\n\
1686 Some gdb commands are provided just for use by gdb maintainers.\n\
1687 These commands are subject to frequent change, and may not be as\n\
1688 well documented as user commands."),
1690 add_cmd ("obscure", class_obscure, _("Obscure features."), &cmdlist);
1691 add_cmd ("aliases", class_alias,
1692 _("Aliases of other commands."), &cmdlist);
1693 add_cmd ("user-defined", class_user, _("\
1694 User-defined commands.\n\
1695 The commands in this class are those defined by the user.\n\
1696 Use the \"define\" command to define a command."), &cmdlist);
1697 add_cmd ("support", class_support, _("Support facilities."), &cmdlist);
1699 add_cmd ("status", class_info, _("Status inquiries."), &cmdlist);
1700 add_cmd ("files", class_files, _("Specifying and examining files."),
1702 add_cmd ("breakpoints", class_breakpoint,
1703 _("Making program stop at certain points."), &cmdlist);
1704 add_cmd ("data", class_vars, _("Examining data."), &cmdlist);
1705 add_cmd ("stack", class_stack, _("\
1706 Examining the stack.\n\
1707 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1708 counting from zero for the innermost (currently executing) frame.\n\n\
1709 At any time gdb identifies one frame as the \"selected\" frame.\n\
1710 Variable lookups are done with respect to the selected frame.\n\
1711 When the program being debugged stops, gdb selects the innermost frame.\n\
1712 The commands below can be used to select other frames by number or address."),
1714 add_cmd ("running", class_run, _("Running the program."), &cmdlist);
1716 /* Define general commands. */
1718 add_com ("pwd", class_files, pwd_command, _("\
1719 Print working directory. This is used for your program as well."));
1721 c = add_cmd ("cd", class_files, cd_command, _("\
1722 Set working directory to DIR for debugger.\n\
1723 The debugger's current working directory specifies where scripts and other\n\
1724 files that can be loaded by GDB are located.\n\
1725 In order to change the inferior's current working directory, the recommended\n\
1726 way is to use the \"set cwd\" command."), &cmdlist);
1727 set_cmd_completer (c, filename_completer);
1729 add_com ("echo", class_support, echo_command, _("\
1730 Print a constant string. Give string as argument.\n\
1731 C escape sequences may be used in the argument.\n\
1732 No newline is added at the end of the argument;\n\
1733 use \"\\n\" if you want a newline to be printed.\n\
1734 Since leading and trailing whitespace are ignored in command arguments,\n\
1735 if you want to print some you must use \"\\\" before leading whitespace\n\
1736 to be printed or after trailing whitespace."));
1738 add_setshow_enum_cmd ("script-extension", class_support,
1739 script_ext_enums, &script_ext_mode, _("\
1740 Set mode for script filename extension recognition."), _("\
1741 Show mode for script filename extension recognition."), _("\
1742 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1743 soft == evaluate script according to filename extension, fallback to GDB script"
1745 strict == evaluate script according to filename extension, error if not supported"
1748 show_script_ext_mode,
1749 &setlist, &showlist);
1751 add_com ("quit", class_support, quit_command, _("\
1753 Usage: quit [EXPR]\n\
1754 The optional expression EXPR, if present, is evaluated and the result\n\
1755 used as GDB's exit code. The default is zero."));
1756 c = add_com ("help", class_support, help_command,
1757 _("Print list of commands."));
1758 set_cmd_completer (c, command_completer);
1759 add_com_alias ("q", "quit", class_support, 1);
1760 add_com_alias ("h", "help", class_support, 1);
1762 add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1763 Set verbosity."), _("\
1764 Show verbosity."), NULL,
1767 &setlist, &showlist);
1769 add_prefix_cmd ("history", class_support, set_history,
1770 _("Generic command for setting command history parameters."),
1771 &sethistlist, "set history ", 0, &setlist);
1772 add_prefix_cmd ("history", class_support, show_history,
1773 _("Generic command for showing command history parameters."),
1774 &showhistlist, "show history ", 0, &showlist);
1776 add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1777 Set history expansion on command input."), _("\
1778 Show history expansion on command input."), _("\
1779 Without an argument, history expansion is enabled."),
1781 show_history_expansion_p,
1782 &sethistlist, &showhistlist);
1784 add_prefix_cmd ("info", class_info, info_command, _("\
1785 Generic command for showing things about the program being debugged."),
1786 &infolist, "info ", 0, &cmdlist);
1787 add_com_alias ("i", "info", class_info, 1);
1788 add_com_alias ("inf", "info", class_info, 1);
1790 add_com ("complete", class_obscure, complete_command,
1791 _("List the completions for the rest of the line as a command."));
1793 add_prefix_cmd ("show", class_info, show_command, _("\
1794 Generic command for showing things about the debugger."),
1795 &showlist, "show ", 0, &cmdlist);
1796 /* Another way to get at the same thing. */
1797 add_info ("set", show_command, _("Show all GDB settings."));
1799 add_cmd ("commands", no_set_class, show_commands, _("\
1800 Show the history of commands you typed.\n\
1801 You can supply a command number to start with, or a `+' to start after\n\
1802 the previous command number shown."),
1805 add_cmd ("version", no_set_class, show_version,
1806 _("Show what version of GDB this is."), &showlist);
1808 add_cmd ("configuration", no_set_class, show_configuration,
1809 _("Show how GDB was configured at build time."), &showlist);
1811 add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1812 Set debugging of remote protocol."), _("\
1813 Show debugging of remote protocol."), _("\
1814 When enabled, each packet sent or received with the remote target\n\
1818 &setdebuglist, &showdebuglist);
1820 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class,
1821 &remote_timeout, _("\
1822 Set timeout limit to wait for target to respond."), _("\
1823 Show timeout limit to wait for target to respond."), _("\
1824 This value is used to set the time limit for gdb to wait for a response\n\
1827 show_remote_timeout,
1828 &setlist, &showlist);
1830 add_prefix_cmd ("debug", no_class, set_debug,
1831 _("Generic command for setting gdb debugging flags"),
1832 &setdebuglist, "set debug ", 0, &setlist);
1834 add_prefix_cmd ("debug", no_class, show_debug,
1835 _("Generic command for showing gdb debugging flags"),
1836 &showdebuglist, "show debug ", 0, &showlist);
1838 c = add_com ("shell", class_support, shell_command, _("\
1839 Execute the rest of the line as a shell command.\n\
1840 With no arguments, run an inferior shell."));
1841 set_cmd_completer (c, filename_completer);
1843 c = add_com ("edit", class_files, edit_command, _("\
1844 Edit specified file or function.\n\
1845 With no argument, edits file containing most recent line listed.\n\
1846 Editing targets can be specified in these ways:\n\
1847 FILE:LINENUM, to edit at that line in that file,\n\
1848 FUNCTION, to edit at the beginning of that function,\n\
1849 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1850 *ADDRESS, to edit at the line containing that address.\n\
1851 Uses EDITOR environment variable contents as editor (or ex as default)."));
1853 c->completer = location_completer;
1855 add_com ("list", class_files, list_command, _("\
1856 List specified function or line.\n\
1857 With no argument, lists ten more lines after or around previous listing.\n\
1858 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1859 One argument specifies a line, and ten lines are listed around that line.\n\
1860 Two arguments with comma between specify starting and ending lines to list.\n\
1861 Lines can be specified in these ways:\n\
1862 LINENUM, to list around that line in current file,\n\
1863 FILE:LINENUM, to list around that line in that file,\n\
1864 FUNCTION, to list around beginning of that function,\n\
1865 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1866 *ADDRESS, to list around the line containing that address.\n\
1867 With two args, if one is empty, it stands for ten lines away from\n\
1870 By default, when a single location is given, display ten lines.\n\
1871 This can be changed using \"set listsize\", and the current value\n\
1872 can be shown using \"show listsize\"."));
1874 add_com_alias ("l", "list", class_files, 1);
1877 add_com_alias ("file", "list", class_files, 1);
1879 c = add_com ("disassemble", class_vars, disassemble_command, _("\
1880 Disassemble a specified section of memory.\n\
1881 Default is the function surrounding the pc of the selected frame.\n\
1883 With a /m modifier, source lines are included (if available).\n\
1884 This view is \"source centric\": the output is in source line order,\n\
1885 regardless of any optimization that is present. Only the main source file\n\
1886 is displayed, not those of, e.g., any inlined functions.\n\
1887 This modifier hasn't proved useful in practice and is deprecated\n\
1890 With a /s modifier, source lines are included (if available).\n\
1891 This differs from /m in two important respects:\n\
1892 - the output is still in pc address order, and\n\
1893 - file names and contents for all relevant source files are displayed.\n\
1895 With a /r modifier, raw instructions in hex are included.\n\
1897 With a single argument, the function surrounding that address is dumped.\n\
1898 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1899 in the form of \"start,end\", or \"start,+length\".\n\
1901 Note that the address is interpreted as an expression, not as a location\n\
1902 like in the \"break\" command.\n\
1903 So, for example, if you want to disassemble function bar in file foo.c\n\
1904 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1905 set_cmd_completer (c, location_completer);
1907 add_com_alias ("!", "shell", class_support, 0);
1909 c = add_com ("make", class_support, make_command, _("\
1910 Run the ``make'' program using the rest of the line as arguments."));
1911 set_cmd_completer (c, filename_completer);
1912 add_cmd ("user", no_class, show_user, _("\
1913 Show definitions of non-python/scheme user defined commands.\n\
1914 Argument is the name of the user defined command.\n\
1915 With no argument, show definitions of all user defined commands."), &showlist);
1916 add_com ("apropos", class_support, apropos_command,
1917 _("Search for commands matching a REGEXP"));
1919 add_setshow_uinteger_cmd ("max-user-call-depth", no_class,
1920 &max_user_call_depth, _("\
1921 Set the max call depth for non-python/scheme user-defined commands."), _("\
1922 Show the max call depth for non-python/scheme user-defined commands."), NULL,
1924 show_max_user_call_depth,
1925 &setlist, &showlist);
1927 add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1928 Set tracing of GDB CLI commands."), _("\
1929 Show state of GDB CLI command tracing."), _("\
1930 When 'on', each command is displayed as it is executed."),
1933 &setlist, &showlist);
1935 c = add_com ("alias", class_support, alias_command, _("\
1936 Define a new command that is an alias of an existing command.\n\
1937 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1938 ALIAS is the name of the alias command to create.\n\
1939 COMMAND is the command being aliased to.\n\
1940 If \"-a\" is specified, the command is an abbreviation,\n\
1941 and will not appear in help command list output.\n\
1944 Make \"spe\" an alias of \"set print elements\":\n\
1945 alias spe = set print elements\n\
1946 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1947 alias -a set print elms = set print elements"));
1951 init_cli_cmds (void)
1953 struct cmd_list_element *c;
1954 char *source_help_text;
1956 source_help_text = xstrprintf (_("\
1957 Read commands from a file named FILE.\n\
1959 Usage: source [-s] [-v] FILE\n\
1960 -s: search for the script in the source search path,\n\
1961 even if FILE contains directories.\n\
1962 -v: each command in FILE is echoed as it is executed.\n\
1964 Note that the file \"%s\" is read automatically in this way\n\
1965 when GDB is started."), gdbinit);
1966 c = add_cmd ("source", class_support, source_command,
1967 source_help_text, &cmdlist);
1968 set_cmd_completer (c, filename_completer);