3 Copyright (C) 2000-2016 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 "dyn-string.h"
23 #include "readline/readline.h"
24 #include "readline/tilde.h"
25 #include "completer.h"
26 #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
27 #include "gdb_wait.h" /* For shell escape implementation. */
28 #include "gdb_regex.h" /* Used by apropos_command. */
29 #include "gdb_vfork.h"
31 #include "expression.h"
35 #include "filenames.h" /* For DOSish file names. */
39 #include "tracepoint.h"
40 #include "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"
55 #include "tui/tui.h" /* For tui_active et.al. */
61 /* Prototypes for local command functions */
63 static void complete_command (char *, int);
65 static void echo_command (char *, int);
67 static void pwd_command (char *, int);
69 static void show_version (char *, int);
71 static void help_command (char *, int);
73 static void show_command (char *, int);
75 static void info_command (char *, int);
77 static void show_debug (char *, int);
79 static void set_debug (char *, int);
81 static void show_user (char *, int);
83 static void make_command (char *, int);
85 static void shell_escape (char *, int);
87 static void edit_command (char *, int);
89 static void list_command (char *, int);
91 /* Prototypes for local utility functions */
93 static void ambiguous_line_spec (struct symtabs_and_lines *);
95 static void filter_sals (struct symtabs_and_lines *);
98 /* Limit the call depth of user-defined commands */
99 unsigned int max_user_call_depth;
101 /* Define all cmd_list_elements. */
103 /* Chain containing all defined commands. */
105 struct cmd_list_element *cmdlist;
107 /* Chain containing all defined info subcommands. */
109 struct cmd_list_element *infolist;
111 /* Chain containing all defined enable subcommands. */
113 struct cmd_list_element *enablelist;
115 /* Chain containing all defined disable subcommands. */
117 struct cmd_list_element *disablelist;
119 /* Chain containing all defined stop subcommands. */
121 struct cmd_list_element *stoplist;
123 /* Chain containing all defined delete subcommands. */
125 struct cmd_list_element *deletelist;
127 /* Chain containing all defined detach subcommands. */
129 struct cmd_list_element *detachlist;
131 /* Chain containing all defined kill subcommands. */
133 struct cmd_list_element *killlist;
135 /* Chain containing all defined set subcommands */
137 struct cmd_list_element *setlist;
139 /* Chain containing all defined unset subcommands */
141 struct cmd_list_element *unsetlist;
143 /* Chain containing all defined show subcommands. */
145 struct cmd_list_element *showlist;
147 /* Chain containing all defined \"set history\". */
149 struct cmd_list_element *sethistlist;
151 /* Chain containing all defined \"show history\". */
153 struct cmd_list_element *showhistlist;
155 /* Chain containing all defined \"unset history\". */
157 struct cmd_list_element *unsethistlist;
159 /* Chain containing all defined maintenance subcommands. */
161 struct cmd_list_element *maintenancelist;
163 /* Chain containing all defined "maintenance info" subcommands. */
165 struct cmd_list_element *maintenanceinfolist;
167 /* Chain containing all defined "maintenance print" subcommands. */
169 struct cmd_list_element *maintenanceprintlist;
171 struct cmd_list_element *setprintlist;
173 struct cmd_list_element *showprintlist;
175 struct cmd_list_element *setdebuglist;
177 struct cmd_list_element *showdebuglist;
179 struct cmd_list_element *setchecklist;
181 struct cmd_list_element *showchecklist;
183 /* Command tracing state. */
185 int source_verbose = 0;
186 int trace_commands = 0;
188 /* 'script-extension' option support. */
190 static const char script_ext_off[] = "off";
191 static const char script_ext_soft[] = "soft";
192 static const char script_ext_strict[] = "strict";
194 static const char *const script_ext_enums[] = {
201 static const char *script_ext_mode = script_ext_soft;
203 /* Utility used everywhere when at least one argument is needed and
207 error_no_arg (const char *why)
209 error (_("Argument required (%s)."), why);
212 /* The "info" command is defined as a prefix, with allow_unknown = 0.
213 Therefore, its own definition is called only for "info" with no
217 info_command (char *arg, int from_tty)
219 printf_unfiltered (_("\"info\" must be followed by "
220 "the name of an info command.\n"));
221 help_list (infolist, "info ", all_commands, gdb_stdout);
224 /* The "show" command with no arguments shows all the settings. */
227 show_command (char *arg, int from_tty)
229 cmd_show_list (showlist, from_tty, "");
232 /* Provide documentation on command or list given by COMMAND. FROM_TTY
236 help_command (char *command, int from_tty)
238 help_cmd (command, gdb_stdout);
241 /* Note: The "complete" command is used by Emacs to implement completion.
242 [Is that why this function writes output with *_unfiltered?] */
245 complete_command (char *arg, int from_tty)
248 char *point, *arg_prefix;
249 VEC (char_ptr) *completions;
253 if (max_completions == 0)
255 /* Only print this for non-mi frontends. An MI frontend may not
256 be able to handle this. */
257 if (!ui_out_is_mi_like_p (current_uiout))
259 printf_unfiltered (_("max-completions is zero,"
260 " completion is disabled.\n"));
267 argpoint = strlen (arg);
269 /* complete_line assumes that its first argument is somewhere
270 within, and except for filenames at the beginning of, the word to
271 be completed. The following crude imitation of readline's
272 word-breaking tries to accomodate this. */
273 point = arg + argpoint;
276 if (strchr (rl_completer_word_break_characters, point[-1]) != 0)
281 arg_prefix = (char *) alloca (point - arg + 1);
282 memcpy (arg_prefix, arg, point - arg);
283 arg_prefix[point - arg] = 0;
285 completions = complete_line (point, arg, argpoint);
289 int ix, size = VEC_length (char_ptr, completions);
290 char *item, *prev = NULL;
292 qsort (VEC_address (char_ptr, completions), size,
293 sizeof (char *), compare_strings);
295 /* We do extra processing here since we only want to print each
297 for (ix = 0; VEC_iterate (char_ptr, completions, ix, item); ++ix)
299 if (prev == NULL || strcmp (item, prev) != 0)
301 printf_unfiltered ("%s%s\n", arg_prefix, item);
310 VEC_free (char_ptr, completions);
312 if (size == max_completions)
314 /* ARG_PREFIX and POINT are included in the output so that emacs
315 will include the message in the output. */
316 printf_unfiltered (_("%s%s %s\n"),
318 get_max_completions_reached_message ());
324 is_complete_command (struct cmd_list_element *c)
326 return cmd_cfunc_eq (c, complete_command);
330 show_version (char *args, int from_tty)
332 print_gdb_version (gdb_stdout);
333 printf_filtered ("\n");
337 show_configuration (char *args, int from_tty)
339 print_gdb_configuration (gdb_stdout);
342 /* Handle the quit command. */
345 quit_command (char *args, int from_tty)
349 /* An optional expression may be used to cause gdb to terminate with
350 the value of that expression. */
353 struct value *val = parse_and_eval (args);
355 exit_code = (int) value_as_long (val);
358 if (!quit_confirm ())
359 error (_("Not confirmed."));
361 query_if_trace_running (from_tty);
363 quit_force (args ? &exit_code : NULL, from_tty);
367 pwd_command (char *args, int from_tty)
370 error (_("The \"pwd\" command does not take an argument: %s"), args);
371 if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
372 error (_("Error finding name of working directory: %s"),
373 safe_strerror (errno));
375 if (strcmp (gdb_dirbuf, current_directory) != 0)
376 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
377 current_directory, gdb_dirbuf);
379 printf_unfiltered (_("Working directory %s.\n"), current_directory);
383 cd_command (char *dir, int from_tty)
386 /* Found something other than leading repetitions of "/..". */
389 struct cleanup *cleanup;
391 /* If the new directory is absolute, repeat is a no-op; if relative,
392 repeat might be useful but is more likely to be a mistake. */
398 dir = tilde_expand (dir);
399 cleanup = make_cleanup (xfree, dir);
402 perror_with_name (dir);
404 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
405 /* There's too much mess with DOSish names like "d:", "d:.",
406 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
407 simply get the canonicalized name of the current directory. */
408 dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
412 if (IS_DIR_SEPARATOR (dir[len - 1]))
414 /* Remove the trailing slash unless this is a root directory
415 (including a drive letter on non-Unix systems). */
416 if (!(len == 1) /* "/" */
417 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
418 && !(len == 3 && dir[1] == ':') /* "d:/" */
424 dir = savestring (dir, len);
425 if (IS_ABSOLUTE_PATH (dir))
426 current_directory = dir;
429 if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
430 current_directory = concat (current_directory, dir, (char *)NULL);
432 current_directory = concat (current_directory, SLASH_STRING,
437 /* Now simplify any occurrences of `.' and `..' in the pathname. */
440 for (p = current_directory; *p;)
442 if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
443 && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
444 memmove (p, p + 2, strlen (p + 2) + 1);
445 else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
446 && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
450 /* Search backwards for the directory just before the "/.."
451 and obliterate it and the "/..". */
454 while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
457 if (q == current_directory)
458 /* current_directory is
459 a relative pathname ("can't happen"--leave it alone). */
463 memmove (q - 1, p + 3, strlen (p + 3) + 1);
468 /* We are dealing with leading repetitions of "/..", for
469 example "/../..", which is the Mach super-root. */
479 forget_cached_source_info ();
482 pwd_command ((char *) 0, 1);
484 do_cleanups (cleanup);
487 /* Show the current value of the 'script-extension' option. */
490 show_script_ext_mode (struct ui_file *file, int from_tty,
491 struct cmd_list_element *c, const char *value)
493 fprintf_filtered (file,
494 _("Script filename extension recognition is \"%s\".\n"),
498 /* Try to open SCRIPT_FILE.
499 If successful, the full path name is stored in *FULL_PATHP,
500 the stream is stored in *STREAMP, and return 1.
501 The caller is responsible for freeing *FULL_PATHP.
502 If not successful, return 0; errno is set for the last file
505 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
506 search for it in the source search path. */
509 find_and_open_script (const char *script_file, int search_path,
510 FILE **streamp, char **full_pathp)
514 struct cleanup *old_cleanups;
515 int search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH;
517 file = tilde_expand (script_file);
518 old_cleanups = make_cleanup (xfree, file);
521 search_flags |= OPF_SEARCH_IN_PATH;
523 /* Search for and open 'file' on the search path used for source
524 files. Put the full location in *FULL_PATHP. */
525 fd = openp (source_path, search_flags,
526 file, O_RDONLY, full_pathp);
530 int save_errno = errno;
531 do_cleanups (old_cleanups);
536 do_cleanups (old_cleanups);
538 *streamp = fdopen (fd, FOPEN_RT);
539 if (*streamp == NULL)
541 int save_errno = errno;
553 /* Load script FILE, which has already been opened as STREAM.
554 FILE_TO_OPEN is the form of FILE to use if one needs to open the file.
555 This is provided as FILE may have been found via the source search path.
556 An important thing to note here is that FILE may be a symlink to a file
557 with a different or non-existing suffix, and thus one cannot infer the
558 extension language from FILE_TO_OPEN. */
561 source_script_from_stream (FILE *stream, const char *file,
562 const char *file_to_open)
564 if (script_ext_mode != script_ext_off)
566 const struct extension_language_defn *extlang
567 = get_ext_lang_of_file (file);
571 if (ext_lang_present_p (extlang))
573 script_sourcer_func *sourcer
574 = ext_lang_script_sourcer (extlang);
576 gdb_assert (sourcer != NULL);
577 sourcer (extlang, stream, file_to_open);
580 else if (script_ext_mode == script_ext_soft)
582 /* Assume the file is a gdb script.
583 This is handled below. */
586 throw_ext_lang_unsupported (extlang);
590 script_from_file (stream, file);
593 /* Worker to perform the "source" command.
595 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
596 search for it in the source search path. */
599 source_script_with_search (const char *file, int from_tty, int search_path)
603 struct cleanup *old_cleanups;
605 if (file == NULL || *file == 0)
606 error (_("source command requires file name of file to source."));
608 if (!find_and_open_script (file, search_path, &stream, &full_path))
610 /* The script wasn't found, or was otherwise inaccessible.
611 If the source command was invoked interactively, throw an
612 error. Otherwise (e.g. if it was invoked by a script),
613 just emit a warning, rather than cause an error. */
615 perror_with_name (file);
618 perror_warning_with_name (file);
623 old_cleanups = make_cleanup (xfree, full_path);
624 make_cleanup_fclose (stream);
625 /* The python support reopens the file, so we need to pass full_path here
626 in case the file was found on the search path. It's useful to do this
627 anyway so that error messages show the actual file used. But only do
628 this if we (may have) used search_path, as printing the full path in
629 errors for the non-search case can be more noise than signal. */
630 source_script_from_stream (stream, file, search_path ? full_path : file);
631 do_cleanups (old_cleanups);
634 /* Wrapper around source_script_with_search to export it to main.c
635 for use in loading .gdbinit scripts. */
638 source_script (const char *file, int from_tty)
640 source_script_with_search (file, from_tty, 0);
643 /* Return the source_verbose global variable to its previous state
644 on exit from the source command, by whatever means. */
646 source_verbose_cleanup (void *old_value)
648 source_verbose = *(int *)old_value;
653 source_command (char *args, int from_tty)
655 struct cleanup *old_cleanups;
657 int *old_source_verbose = XNEW (int);
660 *old_source_verbose = source_verbose;
661 old_cleanups = make_cleanup (source_verbose_cleanup,
664 /* -v causes the source command to run in verbose mode.
665 -s causes the file to be searched in the source search path,
666 even if the file name contains a '/'.
667 We still have to be able to handle filenames with spaces in a
668 backward compatible way, so buildargv is not appropriate. */
672 while (args[0] != '\0')
674 /* Make sure leading white space does not break the
676 args = skip_spaces (args);
681 if (args[1] == 'v' && isspace (args[2]))
685 /* Skip passed -v. */
688 else if (args[1] == 's' && isspace (args[2]))
692 /* Skip passed -s. */
699 file = skip_spaces (args);
702 source_script_with_search (file, from_tty, search_path);
704 do_cleanups (old_cleanups);
709 echo_command (char *text, int from_tty)
711 const char *p = text;
715 while ((c = *p++) != '\0')
719 /* \ at end of argument is used after spaces
720 so they won't be lost. */
724 c = parse_escape (get_current_arch (), &p);
726 printf_filtered ("%c", c);
729 printf_filtered ("%c", c);
732 /* Force this output to appear now. */
734 gdb_flush (gdb_stdout);
738 shell_escape (char *arg, int from_tty)
740 #if defined(CANT_FORK) || \
741 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
742 /* If ARG is NULL, they want an inferior shell, but `system' just
743 reports if the shell is available when passed a NULL arg. */
744 int rc = system (arg ? arg : "");
747 arg = "inferior shell";
751 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
752 safe_strerror (errno));
753 gdb_flush (gdb_stderr);
757 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
758 gdb_flush (gdb_stderr);
761 /* Make sure to return to the directory GDB thinks it is, in case
762 the shell command we just ran changed it. */
763 chdir (current_directory);
765 #else /* Can fork. */
768 if ((pid = vfork ()) == 0)
770 const char *p, *user_shell;
774 if ((user_shell = (char *) getenv ("SHELL")) == NULL)
775 user_shell = "/bin/sh";
777 /* Get the name of the shell for arg0. */
778 p = lbasename (user_shell);
781 execl (user_shell, p, (char *) 0);
783 execl (user_shell, p, "-c", arg, (char *) 0);
785 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
786 safe_strerror (errno));
787 gdb_flush (gdb_stderr);
792 waitpid (pid, &status, 0);
794 error (_("Fork failed"));
795 #endif /* Can fork. */
799 edit_command (char *arg, int from_tty)
801 struct symtabs_and_lines sals;
802 struct symtab_and_line sal;
808 /* Pull in the current default source line if necessary. */
811 set_default_source_symtab_and_line ();
812 sal = get_current_source_symtab_and_line ();
815 /* Bare "edit" edits file with present line. */
820 error (_("No default source file yet."));
821 sal.line += get_lines_to_list () / 2;
825 struct cleanup *cleanup;
826 struct event_location *location;
829 /* Now should only be one argument -- decode it in SAL. */
831 location = string_to_event_location (&arg1, current_language);
832 cleanup = make_cleanup_delete_event_location (location);
833 sals = decode_line_1 (location, DECODE_LINE_LIST_MODE, NULL, NULL, 0);
839 do_cleanups (cleanup);
844 ambiguous_line_spec (&sals);
846 do_cleanups (cleanup);
854 error (_("Junk at end of line specification."));
856 /* If line was specified by address, first print exactly which
857 line, and which file. In this case, sal.symtab == 0 means
858 address is outside of all known source files, not that user
859 failed to give a filename. */
862 struct gdbarch *gdbarch;
865 error (_("No source file for address %s."),
866 paddress (get_current_arch (), sal.pc));
868 gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab));
869 sym = find_pc_function (sal.pc);
871 printf_filtered ("%s is in %s (%s:%d).\n",
872 paddress (gdbarch, sal.pc),
873 SYMBOL_PRINT_NAME (sym),
874 symtab_to_filename_for_display (sal.symtab),
877 printf_filtered ("%s is at %s:%d.\n",
878 paddress (gdbarch, sal.pc),
879 symtab_to_filename_for_display (sal.symtab),
883 /* If what was given does not imply a symtab, it must be an
884 undebuggable symbol which means no source code. */
887 error (_("No line number known for %s."), arg);
888 do_cleanups (cleanup);
891 if ((editor = (char *) getenv ("EDITOR")) == NULL)
894 fn = symtab_to_fullname (sal.symtab);
896 /* Quote the file name, in case it has whitespace or other special
898 p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
899 shell_escape (p, from_tty);
904 list_command (char *arg, int from_tty)
906 struct symtabs_and_lines sals, sals_end;
907 struct symtab_and_line sal = { 0 };
908 struct symtab_and_line sal_end = { 0 };
909 struct symtab_and_line cursal = { 0 };
917 struct cleanup *cleanup;
919 cleanup = make_cleanup (null_cleanup, NULL);
921 /* Pull in the current default source line if necessary. */
922 if (arg == NULL || ((arg[0] == '+' || arg[0] == '-') && arg[1] == '\0'))
924 set_default_source_symtab_and_line ();
925 cursal = get_current_source_symtab_and_line ();
927 /* If this is the first "list" since we've set the current
928 source line, center the listing around that line. */
929 if (get_first_line_listed () == 0)
933 first = std::max (cursal.line - get_lines_to_list () / 2, 1);
935 /* A small special case --- if listing backwards, and we
936 should list only one line, list the preceding line,
937 instead of the exact line we've just shown after e.g.,
938 stopping for a breakpoint. */
939 if (arg != NULL && arg[0] == '-'
940 && get_lines_to_list () == 1 && first > 1)
943 print_source_lines (cursal.symtab, first,
944 first + get_lines_to_list (), 0);
947 /* "l" or "l +" lists next ten lines. */
948 else if (arg == NULL || arg[0] == '+')
949 print_source_lines (cursal.symtab, cursal.line,
950 cursal.line + get_lines_to_list (), 0);
952 /* "l -" lists previous ten lines, the ones before the ten just
954 else if (arg[0] == '-')
956 if (get_first_line_listed () == 1)
957 error (_("Already at the start of %s."),
958 symtab_to_filename_for_display (cursal.symtab));
959 print_source_lines (cursal.symtab,
960 std::max (get_first_line_listed ()
961 - get_lines_to_list (), 1),
962 get_first_line_listed (), 0);
968 /* Now if there is only one argument, decode it in SAL
970 If there are two arguments, decode them in SAL and SAL_END
971 and clear NO_END; however, if one of the arguments is blank,
972 set DUMMY_BEG or DUMMY_END to record that fact. */
974 if (!have_full_symbols () && !have_partial_symbols ())
975 error (_("No symbol table is loaded. Use the \"file\" command."));
982 struct event_location *location;
984 location = string_to_event_location (&arg1, current_language);
985 make_cleanup_delete_event_location (location);
986 sals = decode_line_1 (location, DECODE_LINE_LIST_MODE, NULL, NULL, 0);
992 do_cleanups (cleanup);
997 ambiguous_line_spec (&sals);
999 do_cleanups (cleanup);
1007 /* Record whether the BEG arg is all digits. */
1009 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
1010 linenum_beg = (p == arg1);
1012 while (*arg1 == ' ' || *arg1 == '\t')
1018 while (*arg1 == ' ' || *arg1 == '\t')
1024 struct event_location *location;
1026 location = string_to_event_location (&arg1, current_language);
1027 make_cleanup_delete_event_location (location);
1029 sals_end = decode_line_1 (location,
1030 DECODE_LINE_LIST_MODE, NULL, NULL, 0);
1032 sals_end = decode_line_1 (location, DECODE_LINE_LIST_MODE,
1033 NULL, sal.symtab, sal.line);
1035 filter_sals (&sals_end);
1036 if (sals_end.nelts == 0)
1038 do_cleanups (cleanup);
1041 if (sals_end.nelts > 1)
1043 ambiguous_line_spec (&sals_end);
1044 xfree (sals_end.sals);
1045 do_cleanups (cleanup);
1048 sal_end = sals_end.sals[0];
1049 xfree (sals_end.sals);
1054 error (_("Junk at end of line specification."));
1056 if (!no_end && !dummy_beg && !dummy_end
1057 && sal.symtab != sal_end.symtab)
1058 error (_("Specified start and end are in different files."));
1059 if (dummy_beg && dummy_end)
1060 error (_("Two empty args do not say what lines to list."));
1062 /* If line was specified by address,
1063 first print exactly which line, and which file.
1065 In this case, sal.symtab == 0 means address is outside of all
1066 known source files, not that user failed to give a filename. */
1069 struct gdbarch *gdbarch;
1071 if (sal.symtab == 0)
1072 error (_("No source file for address %s."),
1073 paddress (get_current_arch (), sal.pc));
1075 gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab));
1076 sym = find_pc_function (sal.pc);
1078 printf_filtered ("%s is in %s (%s:%d).\n",
1079 paddress (gdbarch, sal.pc),
1080 SYMBOL_PRINT_NAME (sym),
1081 symtab_to_filename_for_display (sal.symtab), sal.line);
1083 printf_filtered ("%s is at %s:%d.\n",
1084 paddress (gdbarch, sal.pc),
1085 symtab_to_filename_for_display (sal.symtab), sal.line);
1088 /* If line was not specified by just a line number, and it does not
1089 imply a symtab, it must be an undebuggable symbol which means no
1092 if (!linenum_beg && sal.symtab == 0)
1093 error (_("No line number known for %s."), arg);
1095 /* If this command is repeated with RET,
1096 turn it into the no-arg variant. */
1101 if (dummy_beg && sal_end.symtab == 0)
1102 error (_("No default source file yet. Do \"help list\"."));
1104 print_source_lines (sal_end.symtab,
1105 std::max (sal_end.line - (get_lines_to_list () - 1), 1),
1106 sal_end.line + 1, 0);
1107 else if (sal.symtab == 0)
1108 error (_("No default source file yet. Do \"help list\"."));
1111 int first_line = sal.line - get_lines_to_list () / 2;
1113 if (first_line < 1) first_line = 1;
1115 print_source_lines (sal.symtab,
1117 first_line + get_lines_to_list (),
1121 print_source_lines (sal.symtab, sal.line,
1123 ? sal.line + get_lines_to_list ()
1124 : sal_end.line + 1),
1126 do_cleanups (cleanup);
1129 /* Subroutine of disassemble_command to simplify it.
1130 Perform the disassembly.
1131 NAME is the name of the function if known, or NULL.
1132 [LOW,HIGH) are the range of addresses to disassemble.
1133 MIXED is non-zero to print source with the assembler. */
1136 print_disassembly (struct gdbarch *gdbarch, const char *name,
1137 CORE_ADDR low, CORE_ADDR high, int flags)
1140 if (!tui_is_window_visible (DISASSEM_WIN))
1143 printf_filtered ("Dump of assembler code ");
1145 printf_filtered ("for function %s:\n", name);
1147 printf_filtered ("from %s to %s:\n",
1148 paddress (gdbarch, low), paddress (gdbarch, high));
1150 /* Dump the specified range. */
1151 gdb_disassembly (gdbarch, current_uiout, 0, flags, -1, low, high);
1153 printf_filtered ("End of assembler dump.\n");
1154 gdb_flush (gdb_stdout);
1159 tui_show_assembly (gdbarch, low);
1164 /* Subroutine of disassemble_command to simplify it.
1165 Print a disassembly of the current function according to FLAGS. */
1168 disassemble_current_function (int flags)
1170 struct frame_info *frame;
1171 struct gdbarch *gdbarch;
1172 CORE_ADDR low, high, pc;
1175 frame = get_selected_frame (_("No frame selected."));
1176 gdbarch = get_frame_arch (frame);
1177 pc = get_frame_address_in_block (frame);
1178 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1179 error (_("No function contains program counter for selected frame."));
1181 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1184 /* FIXME: cagney/2004-02-07: This should be an observer. */
1185 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1187 low += gdbarch_deprecated_function_start_offset (gdbarch);
1189 print_disassembly (gdbarch, name, low, high, flags);
1192 /* Dump a specified section of assembly code.
1196 - dump the assembly code for the function of the current pc
1197 disassemble [/mrs] addr
1198 - dump the assembly code for the function at ADDR
1199 disassemble [/mrs] low,high
1200 disassemble [/mrs] low,+length
1201 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1203 A /m modifier will include source code with the assembly in a
1204 "source centric" view. This view lists only the file of the first insn,
1205 even if other source files are involved (e.g., inlined functions), and
1206 the output is in source order, even with optimized code. This view is
1207 considered deprecated as it hasn't been useful in practice.
1209 A /r modifier will include raw instructions in hex with the assembly.
1211 A /s modifier will include source code with the assembly, like /m, with
1212 two important differences:
1213 1) The output is still in pc address order.
1214 2) File names and contents for all relevant source files are displayed. */
1217 disassemble_command (char *arg, int from_tty)
1219 struct gdbarch *gdbarch = get_current_arch ();
1220 CORE_ADDR low, high;
1235 error (_("Missing modifier."));
1237 while (*p && ! isspace (*p))
1242 flags |= DISASSEMBLY_SOURCE_DEPRECATED;
1245 flags |= DISASSEMBLY_RAW_INSN;
1248 flags |= DISASSEMBLY_SOURCE;
1251 error (_("Invalid disassembly modifier."));
1255 p = skip_spaces_const (p);
1258 if ((flags & (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE))
1259 == (DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_SOURCE))
1260 error (_("Cannot specify both /m and /s."));
1264 flags |= DISASSEMBLY_OMIT_FNAME;
1265 disassemble_current_function (flags);
1269 pc = value_as_address (parse_to_comma_and_eval (&p));
1275 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1276 error (_("No function contains specified address."));
1278 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1281 /* FIXME: cagney/2004-02-07: This should be an observer. */
1282 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1284 low += gdbarch_deprecated_function_start_offset (gdbarch);
1285 flags |= DISASSEMBLY_OMIT_FNAME;
1289 /* Two arguments. */
1292 p = skip_spaces_const (p);
1298 high = parse_and_eval_address (p);
1303 print_disassembly (gdbarch, name, low, high, flags);
1307 make_command (char *arg, int from_tty)
1315 p = (char *) xmalloc (sizeof ("make ") + strlen (arg));
1316 strcpy (p, "make ");
1317 strcpy (p + sizeof ("make ") - 1, arg);
1320 shell_escape (p, from_tty);
1324 show_user (char *args, int from_tty)
1326 struct cmd_list_element *c;
1327 extern struct cmd_list_element *cmdlist;
1331 const char *comname = args;
1333 c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1334 if (!cli_user_command_p (c))
1335 error (_("Not a user command."));
1336 show_user_1 (c, "", args, gdb_stdout);
1340 for (c = cmdlist; c; c = c->next)
1342 if (cli_user_command_p (c) || c->prefixlist != NULL)
1343 show_user_1 (c, "", c->name, gdb_stdout);
1348 /* Search through names of commands and documentations for a certain
1349 regular expression. */
1352 apropos_command (char *searchstr, int from_tty)
1357 if (searchstr == NULL)
1358 error (_("REGEXP string is empty"));
1360 code = regcomp (&pattern, searchstr, REG_ICASE);
1363 struct cleanup *cleanups;
1365 cleanups = make_regfree_cleanup (&pattern);
1366 apropos_cmd (gdb_stdout, cmdlist, &pattern, "");
1367 do_cleanups (cleanups);
1371 char *err = get_regcomp_error (code, &pattern);
1373 make_cleanup (xfree, err);
1374 error (_("Error in regular expression: %s"), err);
1378 /* Subroutine of alias_command to simplify it.
1379 Return the first N elements of ARGV flattened back to a string
1380 with a space separating each element.
1381 ARGV may not be NULL.
1382 This does not take care of quoting elements in case they contain spaces
1386 argv_to_dyn_string (char **argv, int n)
1389 dyn_string_t result = dyn_string_new (10);
1391 gdb_assert (argv != NULL);
1392 gdb_assert (n >= 0 && n <= countargv (argv));
1394 for (i = 0; i < n; ++i)
1397 dyn_string_append_char (result, ' ');
1398 dyn_string_append_cstr (result, argv[i]);
1404 /* Subroutine of alias_command to simplify it.
1405 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1408 valid_command_p (const char *command)
1410 struct cmd_list_element *c;
1412 c = lookup_cmd_1 (& command, cmdlist, NULL, 1);
1414 if (c == NULL || c == (struct cmd_list_element *) -1)
1417 /* This is the slightly tricky part.
1418 lookup_cmd_1 will return a pointer to the last part of COMMAND
1419 to match, leaving COMMAND pointing at the remainder. */
1420 while (*command == ' ' || *command == '\t')
1422 return *command == '\0';
1425 /* Called when "alias" was incorrectly used. */
1428 alias_usage_error (void)
1430 error (_("Usage: alias [-a] [--] ALIAS = COMMAND"));
1433 /* Make an alias of an existing command. */
1436 alias_command (char *args, int from_tty)
1438 int i, alias_argc, command_argc;
1439 int abbrev_flag = 0;
1440 char *args2, *equals, *alias, *command;
1441 char **alias_argv, **command_argv;
1442 dyn_string_t alias_dyn_string, command_dyn_string;
1443 struct cleanup *cleanup;
1445 if (args == NULL || strchr (args, '=') == NULL)
1446 alias_usage_error ();
1448 args2 = xstrdup (args);
1449 cleanup = make_cleanup (xfree, args2);
1450 equals = strchr (args2, '=');
1452 alias_argv = gdb_buildargv (args2);
1453 make_cleanup_freeargv (alias_argv);
1454 command_argv = gdb_buildargv (equals + 1);
1455 make_cleanup_freeargv (command_argv);
1457 for (i = 0; alias_argv[i] != NULL; )
1459 if (strcmp (alias_argv[i], "-a") == 0)
1464 else if (strcmp (alias_argv[i], "--") == 0)
1473 if (alias_argv[0] == NULL || command_argv[0] == NULL
1474 || *alias_argv[0] == '\0' || *command_argv[0] == '\0')
1475 alias_usage_error ();
1477 for (i = 0; alias_argv[i] != NULL; ++i)
1479 if (! valid_user_defined_cmd_name_p (alias_argv[i]))
1482 error (_("Invalid command name: %s"), alias_argv[i]);
1484 error (_("Invalid command element name: %s"), alias_argv[i]);
1488 alias_argc = countargv (alias_argv);
1489 command_argc = countargv (command_argv);
1491 /* COMMAND must exist.
1492 Reconstruct the command to remove any extraneous spaces,
1493 for better error messages. */
1494 command_dyn_string = argv_to_dyn_string (command_argv, command_argc);
1495 make_cleanup_dyn_string_delete (command_dyn_string);
1496 command = dyn_string_buf (command_dyn_string);
1497 if (! valid_command_p (command))
1498 error (_("Invalid command to alias to: %s"), command);
1500 /* ALIAS must not exist. */
1501 alias_dyn_string = argv_to_dyn_string (alias_argv, alias_argc);
1502 make_cleanup_dyn_string_delete (alias_dyn_string);
1503 alias = dyn_string_buf (alias_dyn_string);
1504 if (valid_command_p (alias))
1505 error (_("Alias already exists: %s"), alias);
1507 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1508 Example: alias spe = set print elements
1510 Otherwise ALIAS and COMMAND must have the same number of words,
1511 and every word except the last must match; and the last word of
1512 ALIAS is made an alias of the last word of COMMAND.
1513 Example: alias set print elms = set pr elem
1514 Note that unambiguous abbreviations are allowed. */
1516 if (alias_argc == 1)
1518 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1519 add_com_alias (xstrdup (alias_argv[0]), command, class_alias,
1524 dyn_string_t alias_prefix_dyn_string, command_prefix_dyn_string;
1525 const char *alias_prefix, *command_prefix;
1526 struct cmd_list_element *c_alias, *c_command;
1528 if (alias_argc != command_argc)
1529 error (_("Mismatched command length between ALIAS and COMMAND."));
1531 /* Create copies of ALIAS and COMMAND without the last word,
1532 and use that to verify the leading elements match. */
1533 alias_prefix_dyn_string =
1534 argv_to_dyn_string (alias_argv, alias_argc - 1);
1535 make_cleanup_dyn_string_delete (alias_prefix_dyn_string);
1536 command_prefix_dyn_string =
1537 argv_to_dyn_string (alias_argv, command_argc - 1);
1538 make_cleanup_dyn_string_delete (command_prefix_dyn_string);
1539 alias_prefix = dyn_string_buf (alias_prefix_dyn_string);
1540 command_prefix = dyn_string_buf (command_prefix_dyn_string);
1542 c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1);
1543 /* We've already tried to look up COMMAND. */
1544 gdb_assert (c_command != NULL
1545 && c_command != (struct cmd_list_element *) -1);
1546 gdb_assert (c_command->prefixlist != NULL);
1547 c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1);
1548 if (c_alias != c_command)
1549 error (_("ALIAS and COMMAND prefixes do not match."));
1551 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1552 add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]),
1553 command_argv[command_argc - 1],
1554 class_alias, abbrev_flag, c_command->prefixlist);
1557 do_cleanups (cleanup);
1560 /* Print a list of files and line numbers which a user may choose from
1561 in order to list a function which was specified ambiguously (as
1562 with `list classname::overloadedfuncname', for example). The
1563 vector in SALS provides the filenames and line numbers. */
1566 ambiguous_line_spec (struct symtabs_and_lines *sals)
1570 for (i = 0; i < sals->nelts; ++i)
1571 printf_filtered (_("file: \"%s\", line number: %d\n"),
1572 symtab_to_filename_for_display (sals->sals[i].symtab),
1573 sals->sals[i].line);
1576 /* Sort function for filter_sals. */
1579 compare_symtabs (const void *a, const void *b)
1581 const struct symtab_and_line *sala = (const struct symtab_and_line *) a;
1582 const struct symtab_and_line *salb = (const struct symtab_and_line *) b;
1583 const char *dira = SYMTAB_DIRNAME (sala->symtab);
1584 const char *dirb = SYMTAB_DIRNAME (salb->symtab);
1592 else if (dirb == NULL)
1599 r = filename_cmp (dira, dirb);
1604 r = filename_cmp (sala->symtab->filename, salb->symtab->filename);
1608 if (sala->line < salb->line)
1610 return sala->line == salb->line ? 0 : 1;
1613 /* Remove any SALs that do not match the current program space, or
1614 which appear to be "file:line" duplicates. */
1617 filter_sals (struct symtabs_and_lines *sals)
1622 for (i = 0; i < sals->nelts; ++i)
1624 if (sals->sals[i].pspace == current_program_space
1625 && sals->sals[i].symtab != NULL)
1627 sals->sals[out] = sals->sals[i];
1633 qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line),
1638 for (i = 1; i < sals->nelts; ++i)
1640 if (compare_symtabs (&sals->sals[prev], &sals->sals[i]))
1642 /* Symtabs differ. */
1643 sals->sals[out] = sals->sals[i];
1649 if (sals->nelts == 0)
1659 set_debug (char *arg, int from_tty)
1661 printf_unfiltered (_("\"set debug\" must be followed by "
1662 "the name of a debug subcommand.\n"));
1663 help_list (setdebuglist, "set debug ", all_commands, gdb_stdout);
1667 show_debug (char *args, int from_tty)
1669 cmd_show_list (showdebuglist, from_tty, "");
1673 init_cmd_lists (void)
1675 max_user_call_depth = 1024;
1679 show_info_verbose (struct ui_file *file, int from_tty,
1680 struct cmd_list_element *c,
1684 fprintf_filtered (file,
1685 _("Verbose printing of informational messages is %s.\n"),
1688 fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1692 show_history_expansion_p (struct ui_file *file, int from_tty,
1693 struct cmd_list_element *c, const char *value)
1695 fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1700 show_remote_debug (struct ui_file *file, int from_tty,
1701 struct cmd_list_element *c, const char *value)
1703 fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1708 show_remote_timeout (struct ui_file *file, int from_tty,
1709 struct cmd_list_element *c, const char *value)
1711 fprintf_filtered (file,
1712 _("Timeout limit to wait for target to respond is %s.\n"),
1717 show_max_user_call_depth (struct ui_file *file, int from_tty,
1718 struct cmd_list_element *c, const char *value)
1720 fprintf_filtered (file,
1721 _("The max call depth for user-defined commands is %s.\n"),
1727 initialize_file_ftype _initialize_cli_cmds;
1730 _initialize_cli_cmds (void)
1732 struct cmd_list_element *c;
1734 /* Define the classes of commands.
1735 They will appear in the help list in alphabetical order. */
1737 add_cmd ("internals", class_maintenance, NULL, _("\
1738 Maintenance commands.\n\
1739 Some gdb commands are provided just for use by gdb maintainers.\n\
1740 These commands are subject to frequent change, and may not be as\n\
1741 well documented as user commands."),
1743 add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist);
1744 add_cmd ("aliases", class_alias, NULL,
1745 _("Aliases of other commands."), &cmdlist);
1746 add_cmd ("user-defined", class_user, NULL, _("\
1747 User-defined commands.\n\
1748 The commands in this class are those defined by the user.\n\
1749 Use the \"define\" command to define a command."), &cmdlist);
1750 add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
1752 add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
1753 add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
1755 add_cmd ("breakpoints", class_breakpoint, NULL,
1756 _("Making program stop at certain points."), &cmdlist);
1757 add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
1758 add_cmd ("stack", class_stack, NULL, _("\
1759 Examining the stack.\n\
1760 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1761 counting from zero for the innermost (currently executing) frame.\n\n\
1762 At any time gdb identifies one frame as the \"selected\" frame.\n\
1763 Variable lookups are done with respect to the selected frame.\n\
1764 When the program being debugged stops, gdb selects the innermost frame.\n\
1765 The commands below can be used to select other frames by number or address."),
1767 add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
1769 /* Define general commands. */
1771 add_com ("pwd", class_files, pwd_command, _("\
1772 Print working directory. This is used for your program as well."));
1774 c = add_cmd ("cd", class_files, cd_command, _("\
1775 Set working directory to DIR for debugger and program being debugged.\n\
1776 The change does not take effect for the program being debugged\n\
1777 until the next time it is started."), &cmdlist);
1778 set_cmd_completer (c, filename_completer);
1780 add_com ("echo", class_support, echo_command, _("\
1781 Print a constant string. Give string as argument.\n\
1782 C escape sequences may be used in the argument.\n\
1783 No newline is added at the end of the argument;\n\
1784 use \"\\n\" if you want a newline to be printed.\n\
1785 Since leading and trailing whitespace are ignored in command arguments,\n\
1786 if you want to print some you must use \"\\\" before leading whitespace\n\
1787 to be printed or after trailing whitespace."));
1789 add_setshow_enum_cmd ("script-extension", class_support,
1790 script_ext_enums, &script_ext_mode, _("\
1791 Set mode for script filename extension recognition."), _("\
1792 Show mode for script filename extension recognition."), _("\
1793 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1794 soft == evaluate script according to filename extension, fallback to GDB script"
1796 strict == evaluate script according to filename extension, error if not supported"
1799 show_script_ext_mode,
1800 &setlist, &showlist);
1802 add_com ("quit", class_support, quit_command, _("\
1804 Usage: quit [EXPR]\n\
1805 The optional expression EXPR, if present, is evaluated and the result\n\
1806 used as GDB's exit code. The default is zero."));
1807 c = add_com ("help", class_support, help_command,
1808 _("Print list of commands."));
1809 set_cmd_completer (c, command_completer);
1810 add_com_alias ("q", "quit", class_support, 1);
1811 add_com_alias ("h", "help", class_support, 1);
1813 add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1814 Set verbosity."), _("\
1815 Show verbosity."), NULL,
1818 &setlist, &showlist);
1820 add_prefix_cmd ("history", class_support, set_history,
1821 _("Generic command for setting command history parameters."),
1822 &sethistlist, "set history ", 0, &setlist);
1823 add_prefix_cmd ("history", class_support, show_history,
1824 _("Generic command for showing command history parameters."),
1825 &showhistlist, "show history ", 0, &showlist);
1827 add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1828 Set history expansion on command input."), _("\
1829 Show history expansion on command input."), _("\
1830 Without an argument, history expansion is enabled."),
1832 show_history_expansion_p,
1833 &sethistlist, &showhistlist);
1835 add_prefix_cmd ("info", class_info, info_command, _("\
1836 Generic command for showing things about the program being debugged."),
1837 &infolist, "info ", 0, &cmdlist);
1838 add_com_alias ("i", "info", class_info, 1);
1839 add_com_alias ("inf", "info", class_info, 1);
1841 add_com ("complete", class_obscure, complete_command,
1842 _("List the completions for the rest of the line as a command."));
1844 add_prefix_cmd ("show", class_info, show_command, _("\
1845 Generic command for showing things about the debugger."),
1846 &showlist, "show ", 0, &cmdlist);
1847 /* Another way to get at the same thing. */
1848 add_info ("set", show_command, _("Show all GDB settings."));
1850 add_cmd ("commands", no_set_class, show_commands, _("\
1851 Show the history of commands you typed.\n\
1852 You can supply a command number to start with, or a `+' to start after\n\
1853 the previous command number shown."),
1856 add_cmd ("version", no_set_class, show_version,
1857 _("Show what version of GDB this is."), &showlist);
1859 add_cmd ("configuration", no_set_class, show_configuration,
1860 _("Show how GDB was configured at build time."), &showlist);
1862 add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1863 Set debugging of remote protocol."), _("\
1864 Show debugging of remote protocol."), _("\
1865 When enabled, each packet sent or received with the remote target\n\
1869 &setdebuglist, &showdebuglist);
1871 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class,
1872 &remote_timeout, _("\
1873 Set timeout limit to wait for target to respond."), _("\
1874 Show timeout limit to wait for target to respond."), _("\
1875 This value is used to set the time limit for gdb to wait for a response\n\
1878 show_remote_timeout,
1879 &setlist, &showlist);
1881 add_prefix_cmd ("debug", no_class, set_debug,
1882 _("Generic command for setting gdb debugging flags"),
1883 &setdebuglist, "set debug ", 0, &setlist);
1885 add_prefix_cmd ("debug", no_class, show_debug,
1886 _("Generic command for showing gdb debugging flags"),
1887 &showdebuglist, "show debug ", 0, &showlist);
1889 c = add_com ("shell", class_support, shell_escape, _("\
1890 Execute the rest of the line as a shell command.\n\
1891 With no arguments, run an inferior shell."));
1892 set_cmd_completer (c, filename_completer);
1894 c = add_com ("edit", class_files, edit_command, _("\
1895 Edit specified file or function.\n\
1896 With no argument, edits file containing most recent line listed.\n\
1897 Editing targets can be specified in these ways:\n\
1898 FILE:LINENUM, to edit at that line in that file,\n\
1899 FUNCTION, to edit at the beginning of that function,\n\
1900 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1901 *ADDRESS, to edit at the line containing that address.\n\
1902 Uses EDITOR environment variable contents as editor (or ex as default)."));
1904 c->completer = location_completer;
1906 add_com ("list", class_files, list_command, _("\
1907 List specified function or line.\n\
1908 With no argument, lists ten more lines after or around previous listing.\n\
1909 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1910 One argument specifies a line, and ten lines are listed around that line.\n\
1911 Two arguments with comma between specify starting and ending lines to list.\n\
1912 Lines can be specified in these ways:\n\
1913 LINENUM, to list around that line in current file,\n\
1914 FILE:LINENUM, to list around that line in that file,\n\
1915 FUNCTION, to list around beginning of that function,\n\
1916 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1917 *ADDRESS, to list around the line containing that address.\n\
1918 With two args, if one is empty, it stands for ten lines away from\n\
1921 By default, when a single location is given, display ten lines.\n\
1922 This can be changed using \"set listsize\", and the current value\n\
1923 can be shown using \"show listsize\"."));
1925 add_com_alias ("l", "list", class_files, 1);
1928 add_com_alias ("file", "list", class_files, 1);
1930 c = add_com ("disassemble", class_vars, disassemble_command, _("\
1931 Disassemble a specified section of memory.\n\
1932 Default is the function surrounding the pc of the selected frame.\n\
1934 With a /m modifier, source lines are included (if available).\n\
1935 This view is \"source centric\": the output is in source line order,\n\
1936 regardless of any optimization that is present. Only the main source file\n\
1937 is displayed, not those of, e.g., any inlined functions.\n\
1938 This modifier hasn't proved useful in practice and is deprecated\n\
1941 With a /s modifier, source lines are included (if available).\n\
1942 This differs from /m in two important respects:\n\
1943 - the output is still in pc address order, and\n\
1944 - file names and contents for all relevant source files are displayed.\n\
1946 With a /r modifier, raw instructions in hex are included.\n\
1948 With a single argument, the function surrounding that address is dumped.\n\
1949 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1950 in the form of \"start,end\", or \"start,+length\".\n\
1952 Note that the address is interpreted as an expression, not as a location\n\
1953 like in the \"break\" command.\n\
1954 So, for example, if you want to disassemble function bar in file foo.c\n\
1955 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1956 set_cmd_completer (c, location_completer);
1958 add_com_alias ("!", "shell", class_support, 0);
1960 c = add_com ("make", class_support, make_command, _("\
1961 Run the ``make'' program using the rest of the line as arguments."));
1962 set_cmd_completer (c, filename_completer);
1963 add_cmd ("user", no_class, show_user, _("\
1964 Show definitions of non-python/scheme user defined commands.\n\
1965 Argument is the name of the user defined command.\n\
1966 With no argument, show definitions of all user defined commands."), &showlist);
1967 add_com ("apropos", class_support, apropos_command,
1968 _("Search for commands matching a REGEXP"));
1970 add_setshow_uinteger_cmd ("max-user-call-depth", no_class,
1971 &max_user_call_depth, _("\
1972 Set the max call depth for non-python/scheme user-defined commands."), _("\
1973 Show the max call depth for non-python/scheme user-defined commands."), NULL,
1975 show_max_user_call_depth,
1976 &setlist, &showlist);
1978 add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1979 Set tracing of GDB CLI commands."), _("\
1980 Show state of GDB CLI command tracing."), _("\
1981 When 'on', each command is displayed as it is executed."),
1984 &setlist, &showlist);
1986 c = add_com ("alias", class_support, alias_command, _("\
1987 Define a new command that is an alias of an existing command.\n\
1988 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1989 ALIAS is the name of the alias command to create.\n\
1990 COMMAND is the command being aliased to.\n\
1991 If \"-a\" is specified, the command is an abbreviation,\n\
1992 and will not appear in help command list output.\n\
1995 Make \"spe\" an alias of \"set print elements\":\n\
1996 alias spe = set print elements\n\
1997 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1998 alias -a set print elms = set print elements"));
2002 init_cli_cmds (void)
2004 struct cmd_list_element *c;
2005 char *source_help_text;
2007 source_help_text = xstrprintf (_("\
2008 Read commands from a file named FILE.\n\
2010 Usage: source [-s] [-v] FILE\n\
2011 -s: search for the script in the source search path,\n\
2012 even if FILE contains directories.\n\
2013 -v: each command in FILE is echoed as it is executed.\n\
2015 Note that the file \"%s\" is read automatically in this way\n\
2016 when GDB is started."), gdbinit);
2017 c = add_cmd ("source", class_support, source_command,
2018 source_help_text, &cmdlist);
2019 set_cmd_completer (c, filename_completer);