3 Copyright (C) 2000-2005, 2007-2012 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 "exceptions.h"
22 #include "arch-utils.h"
23 #include "dyn-string.h"
24 #include "readline/readline.h"
25 #include "readline/tilde.h"
26 #include "completer.h"
27 #include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
28 #include "gdb_wait.h" /* For shell escape implementation. */
29 #include "gdb_regex.h" /* Used by apropos_command. */
30 #include "gdb_string.h"
31 #include "gdb_vfork.h"
33 #include "expression.h"
37 #include "filenames.h" /* For DOSish file names. */
41 #include "tracepoint.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"
51 #include "python/python.h"
54 #include "tui/tui.h" /* For tui_active et.al. */
59 /* Prototypes for local command functions */
61 static void complete_command (char *, int);
63 static void echo_command (char *, int);
65 static void pwd_command (char *, int);
67 static void show_version (char *, int);
69 static void help_command (char *, int);
71 static void show_command (char *, int);
73 static void info_command (char *, int);
75 static void show_debug (char *, int);
77 static void set_debug (char *, int);
79 static void show_user (char *, int);
81 static void make_command (char *, int);
83 static void shell_escape (char *, int);
85 static void edit_command (char *, int);
87 static void list_command (char *, int);
89 void apropos_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 toggle subcommands. */
121 struct cmd_list_element *togglelist;
123 /* Chain containing all defined stop subcommands. */
125 struct cmd_list_element *stoplist;
127 /* Chain containing all defined delete subcommands. */
129 struct cmd_list_element *deletelist;
131 /* Chain containing all defined detach subcommands. */
133 struct cmd_list_element *detachlist;
135 /* Chain containing all defined kill subcommands. */
137 struct cmd_list_element *killlist;
139 /* Chain containing all defined set subcommands */
141 struct cmd_list_element *setlist;
143 /* Chain containing all defined unset subcommands */
145 struct cmd_list_element *unsetlist;
147 /* Chain containing all defined show subcommands. */
149 struct cmd_list_element *showlist;
151 /* Chain containing all defined \"set history\". */
153 struct cmd_list_element *sethistlist;
155 /* Chain containing all defined \"show history\". */
157 struct cmd_list_element *showhistlist;
159 /* Chain containing all defined \"unset history\". */
161 struct cmd_list_element *unsethistlist;
163 /* Chain containing all defined maintenance subcommands. */
165 struct cmd_list_element *maintenancelist;
167 /* Chain containing all defined "maintenance info" subcommands. */
169 struct cmd_list_element *maintenanceinfolist;
171 /* Chain containing all defined "maintenance print" subcommands. */
173 struct cmd_list_element *maintenanceprintlist;
175 struct cmd_list_element *setprintlist;
177 struct cmd_list_element *showprintlist;
179 struct cmd_list_element *setdebuglist;
181 struct cmd_list_element *showdebuglist;
183 struct cmd_list_element *setchecklist;
185 struct cmd_list_element *showchecklist;
187 /* Command tracing state. */
189 int source_verbose = 0;
190 int trace_commands = 0;
192 /* 'script-extension' option support. */
194 static const char script_ext_off[] = "off";
195 static const char script_ext_soft[] = "soft";
196 static const char script_ext_strict[] = "strict";
198 static const char *const script_ext_enums[] = {
205 static const char *script_ext_mode = script_ext_soft;
207 /* Utility used everywhere when at least one argument is needed and
211 error_no_arg (char *why)
213 error (_("Argument required (%s)."), why);
216 /* The "info" command is defined as a prefix, with allow_unknown = 0.
217 Therefore, its own definition is called only for "info" with no
221 info_command (char *arg, int from_tty)
223 printf_unfiltered (_("\"info\" must be followed by "
224 "the name of an info command.\n"));
225 help_list (infolist, "info ", -1, gdb_stdout);
228 /* The "show" command with no arguments shows all the settings. */
231 show_command (char *arg, int from_tty)
233 cmd_show_list (showlist, from_tty, "");
236 /* Provide documentation on command or list given by COMMAND. FROM_TTY
240 help_command (char *command, int from_tty)
242 help_cmd (command, gdb_stdout);
245 /* The "complete" command is used by Emacs to implement completion. */
248 complete_command (char *arg, int from_tty)
251 char *point, *arg_prefix;
252 VEC (char_ptr) *completions;
258 argpoint = strlen (arg);
260 /* complete_line assumes that its first argument is somewhere
261 within, and except for filenames at the beginning of, the word to
262 be completed. The following crude imitation of readline's
263 word-breaking tries to accomodate this. */
264 point = arg + argpoint;
267 if (strchr (rl_completer_word_break_characters, point[-1]) != 0)
272 arg_prefix = alloca (point - arg + 1);
273 memcpy (arg_prefix, arg, point - arg);
274 arg_prefix[point - arg] = 0;
276 completions = complete_line (point, arg, argpoint);
280 int ix, size = VEC_length (char_ptr, completions);
281 char *item, *prev = NULL;
283 qsort (VEC_address (char_ptr, completions), size,
284 sizeof (char *), compare_strings);
286 /* We do extra processing here since we only want to print each
288 for (ix = 0; VEC_iterate (char_ptr, completions, ix, item); ++ix)
292 if (prev == NULL || strcmp (item, prev) != 0)
294 printf_unfiltered ("%s%s\n", arg_prefix, item);
303 VEC_free (char_ptr, completions);
308 is_complete_command (struct cmd_list_element *c)
310 return cmd_cfunc_eq (c, complete_command);
314 show_version (char *args, int from_tty)
316 print_gdb_version (gdb_stdout);
317 printf_filtered ("\n");
320 /* Handle the quit command. */
323 quit_command (char *args, int from_tty)
325 if (!quit_confirm ())
326 error (_("Not confirmed."));
328 disconnect_tracing (from_tty);
330 quit_force (args, from_tty);
334 pwd_command (char *args, int from_tty)
337 error (_("The \"pwd\" command does not take an argument: %s"), args);
338 if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
339 error (_("Error finding name of working directory: %s"),
340 safe_strerror (errno));
342 if (strcmp (gdb_dirbuf, current_directory) != 0)
343 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
344 current_directory, gdb_dirbuf);
346 printf_unfiltered (_("Working directory %s.\n"), current_directory);
350 cd_command (char *dir, int from_tty)
353 /* Found something other than leading repetitions of "/..". */
357 /* If the new directory is absolute, repeat is a no-op; if relative,
358 repeat might be useful but is more likely to be a mistake. */
364 dir = tilde_expand (dir);
365 make_cleanup (xfree, dir);
368 perror_with_name (dir);
370 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
371 /* There's too much mess with DOSish names like "d:", "d:.",
372 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
373 simply get the canonicalized name of the current directory. */
374 dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
378 if (IS_DIR_SEPARATOR (dir[len - 1]))
380 /* Remove the trailing slash unless this is a root directory
381 (including a drive letter on non-Unix systems). */
382 if (!(len == 1) /* "/" */
383 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
384 && !(len == 3 && dir[1] == ':') /* "d:/" */
390 dir = savestring (dir, len);
391 if (IS_ABSOLUTE_PATH (dir))
392 current_directory = dir;
395 if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
396 current_directory = concat (current_directory, dir, (char *)NULL);
398 current_directory = concat (current_directory, SLASH_STRING,
403 /* Now simplify any occurrences of `.' and `..' in the pathname. */
406 for (p = current_directory; *p;)
408 if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
409 && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
410 memmove (p, p + 2, strlen (p + 2) + 1);
411 else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
412 && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
416 /* Search backwards for the directory just before the "/.."
417 and obliterate it and the "/..". */
420 while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
423 if (q == current_directory)
424 /* current_directory is
425 a relative pathname ("can't happen"--leave it alone). */
429 memmove (q - 1, p + 3, strlen (p + 3) + 1);
434 /* We are dealing with leading repetitions of "/..", for
435 example "/../..", which is the Mach super-root. */
445 forget_cached_source_info ();
448 pwd_command ((char *) 0, 1);
451 /* Show the current value of the 'script-extension' option. */
454 show_script_ext_mode (struct ui_file *file, int from_tty,
455 struct cmd_list_element *c, const char *value)
457 fprintf_filtered (file,
458 _("Script filename extension recognition is \"%s\".\n"),
462 /* Try to open SCRIPT_FILE.
463 If successful, the full path name is stored in *FULL_PATHP,
464 the stream is stored in *STREAMP, and return 1.
465 The caller is responsible for freeing *FULL_PATHP.
466 If not successful, return 0; errno is set for the last file
469 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
470 search for it in the source search path.
472 NOTE: This calls openp which uses xfullpath to compute the full path
473 instead of gdb_realpath. Symbolic links are not resolved. */
476 find_and_open_script (const char *script_file, int search_path,
477 FILE **streamp, char **full_pathp)
481 struct cleanup *old_cleanups;
482 int search_flags = OPF_TRY_CWD_FIRST;
484 file = tilde_expand (script_file);
485 old_cleanups = make_cleanup (xfree, file);
488 search_flags |= OPF_SEARCH_IN_PATH;
490 /* Search for and open 'file' on the search path used for source
491 files. Put the full location in *FULL_PATHP. */
492 fd = openp (source_path, search_flags,
493 file, O_RDONLY, full_pathp);
497 int save_errno = errno;
498 do_cleanups (old_cleanups);
503 do_cleanups (old_cleanups);
505 *streamp = fdopen (fd, FOPEN_RT);
506 if (*streamp == NULL)
508 int save_errno = errno;
520 /* Load script FILE, which has already been opened as STREAM. */
523 source_script_from_stream (FILE *stream, const char *file)
525 if (script_ext_mode != script_ext_off
526 && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py"))
528 volatile struct gdb_exception e;
530 TRY_CATCH (e, RETURN_MASK_ERROR)
532 source_python_script (stream, file);
536 /* Should we fallback to ye olde GDB script mode? */
537 if (script_ext_mode == script_ext_soft
538 && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR)
540 fseek (stream, 0, SEEK_SET);
541 script_from_file (stream, (char*) file);
545 /* Nope, just punt. */
551 script_from_file (stream, file);
554 /* Worker to perform the "source" command.
556 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
557 search for it in the source search path. */
560 source_script_with_search (const char *file, int from_tty, int search_path)
564 struct cleanup *old_cleanups;
566 if (file == NULL || *file == 0)
567 error (_("source command requires file name of file to source."));
569 if (!find_and_open_script (file, search_path, &stream, &full_path))
571 /* The script wasn't found, or was otherwise inaccessible.
572 If the source command was invoked interactively, throw an
573 error. Otherwise (e.g. if it was invoked by a script),
574 silently ignore the error. */
576 perror_with_name (file);
581 old_cleanups = make_cleanup (xfree, full_path);
582 make_cleanup_fclose (stream);
583 /* The python support reopens the file, so we need to pass full_path here
584 in case the file was found on the search path. It's useful to do this
585 anyway so that error messages show the actual file used. But only do
586 this if we (may have) used search_path, as printing the full path in
587 errors for the non-search case can be more noise than signal. */
588 source_script_from_stream (stream, search_path ? full_path : file);
589 do_cleanups (old_cleanups);
592 /* Wrapper around source_script_with_search to export it to main.c
593 for use in loading .gdbinit scripts. */
596 source_script (char *file, int from_tty)
598 source_script_with_search (file, from_tty, 0);
601 /* Return the source_verbose global variable to its previous state
602 on exit from the source command, by whatever means. */
604 source_verbose_cleanup (void *old_value)
606 source_verbose = *(int *)old_value;
611 source_command (char *args, int from_tty)
613 struct cleanup *old_cleanups;
615 int *old_source_verbose = xmalloc (sizeof(int));
618 *old_source_verbose = source_verbose;
619 old_cleanups = make_cleanup (source_verbose_cleanup,
622 /* -v causes the source command to run in verbose mode.
623 -s causes the file to be searched in the source search path,
624 even if the file name contains a '/'.
625 We still have to be able to handle filenames with spaces in a
626 backward compatible way, so buildargv is not appropriate. */
630 while (args[0] != '\0')
632 /* Make sure leading white space does not break the
634 while (isspace(args[0]))
640 if (args[1] == 'v' && isspace (args[2]))
644 /* Skip passed -v. */
647 else if (args[1] == 's' && isspace (args[2]))
651 /* Skip passed -s. */
658 while (isspace (args[0]))
663 source_script_with_search (file, from_tty, search_path);
665 do_cleanups (old_cleanups);
670 echo_command (char *text, int from_tty)
676 while ((c = *p++) != '\0')
680 /* \ at end of argument is used after spaces
681 so they won't be lost. */
685 c = parse_escape (get_current_arch (), &p);
687 printf_filtered ("%c", c);
690 printf_filtered ("%c", c);
693 /* Force this output to appear now. */
695 gdb_flush (gdb_stdout);
699 shell_escape (char *arg, int from_tty)
701 #if defined(CANT_FORK) || \
702 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
703 /* If ARG is NULL, they want an inferior shell, but `system' just
704 reports if the shell is available when passed a NULL arg. */
705 int rc = system (arg ? arg : "");
708 arg = "inferior shell";
712 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
713 safe_strerror (errno));
714 gdb_flush (gdb_stderr);
718 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
719 gdb_flush (gdb_stderr);
722 /* Make sure to return to the directory GDB thinks it is, in case
723 the shell command we just ran changed it. */
724 chdir (current_directory);
726 #else /* Can fork. */
729 if ((pid = vfork ()) == 0)
731 const char *p, *user_shell;
733 if ((user_shell = (char *) getenv ("SHELL")) == NULL)
734 user_shell = "/bin/sh";
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. */
758 edit_command (char *arg, int from_tty)
760 struct symtabs_and_lines sals;
761 struct symtab_and_line sal;
767 /* Pull in the current default source line if necessary. */
770 set_default_source_symtab_and_line ();
771 sal = get_current_source_symtab_and_line ();
774 /* Bare "edit" edits file with present line. */
779 error (_("No default source file yet."));
780 sal.line += get_lines_to_list () / 2;
784 /* Now should only be one argument -- decode it in SAL. */
787 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
797 ambiguous_line_spec (&sals);
806 error (_("Junk at end of line specification."));
808 /* If line was specified by address, first print exactly which
809 line, and which file. In this case, sal.symtab == 0 means
810 address is outside of all known source files, not that user
811 failed to give a filename. */
814 struct gdbarch *gdbarch;
817 /* FIXME-32x64--assumes sal.pc fits in long. */
818 error (_("No source file for address %s."),
819 hex_string ((unsigned long) sal.pc));
821 gdbarch = get_objfile_arch (sal.symtab->objfile);
822 sym = find_pc_function (sal.pc);
824 printf_filtered ("%s is in %s (%s:%d).\n",
825 paddress (gdbarch, sal.pc),
826 SYMBOL_PRINT_NAME (sym),
827 sal.symtab->filename, sal.line);
829 printf_filtered ("%s is at %s:%d.\n",
830 paddress (gdbarch, sal.pc),
831 sal.symtab->filename, sal.line);
834 /* If what was given does not imply a symtab, it must be an
835 undebuggable symbol which means no source code. */
838 error (_("No line number known for %s."), arg);
841 if ((editor = (char *) getenv ("EDITOR")) == NULL)
844 /* If we don't already know the full absolute file name of the
845 source file, find it now. */
846 if (!sal.symtab->fullname)
848 fn = symtab_to_fullname (sal.symtab);
853 fn = sal.symtab->fullname;
855 /* Quote the file name, in case it has whitespace or other special
857 p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
858 shell_escape (p, from_tty);
863 list_command (char *arg, int from_tty)
865 struct symtabs_and_lines sals, sals_end;
866 struct symtab_and_line sal = { 0 };
867 struct symtab_and_line sal_end = { 0 };
868 struct symtab_and_line cursal = { 0 };
877 /* Pull in the current default source line if necessary. */
878 if (arg == 0 || arg[0] == '+' || arg[0] == '-')
880 set_default_source_symtab_and_line ();
881 cursal = get_current_source_symtab_and_line ();
884 /* "l" or "l +" lists next ten lines. */
886 if (arg == 0 || strcmp (arg, "+") == 0)
888 print_source_lines (cursal.symtab, cursal.line,
889 cursal.line + get_lines_to_list (), 0);
893 /* "l -" lists previous ten lines, the ones before the ten just
895 if (strcmp (arg, "-") == 0)
897 print_source_lines (cursal.symtab,
898 max (get_first_line_listed ()
899 - get_lines_to_list (), 1),
900 get_first_line_listed (), 0);
904 /* Now if there is only one argument, decode it in SAL
906 If there are two arguments, decode them in SAL and SAL_END
907 and clear NO_END; however, if one of the arguments is blank,
908 set DUMMY_BEG or DUMMY_END to record that fact. */
910 if (!have_full_symbols () && !have_partial_symbols ())
911 error (_("No symbol table is loaded. Use the \"file\" command."));
918 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
925 ambiguous_line_spec (&sals);
934 /* Record whether the BEG arg is all digits. */
936 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
937 linenum_beg = (p == arg1);
939 while (*arg1 == ' ' || *arg1 == '\t')
945 while (*arg1 == ' ' || *arg1 == '\t')
952 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
954 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE,
955 sal.symtab, sal.line);
956 filter_sals (&sals_end);
957 if (sals_end.nelts == 0)
959 if (sals_end.nelts > 1)
961 ambiguous_line_spec (&sals_end);
962 xfree (sals_end.sals);
965 sal_end = sals_end.sals[0];
966 xfree (sals_end.sals);
971 error (_("Junk at end of line specification."));
973 if (!no_end && !dummy_beg && !dummy_end
974 && sal.symtab != sal_end.symtab)
975 error (_("Specified start and end are in different files."));
976 if (dummy_beg && dummy_end)
977 error (_("Two empty args do not say what lines to list."));
979 /* If line was specified by address,
980 first print exactly which line, and which file.
982 In this case, sal.symtab == 0 means address is outside of all
983 known source files, not that user failed to give a filename. */
986 struct gdbarch *gdbarch;
989 /* FIXME-32x64--assumes sal.pc fits in long. */
990 error (_("No source file for address %s."),
991 hex_string ((unsigned long) sal.pc));
993 gdbarch = get_objfile_arch (sal.symtab->objfile);
994 sym = find_pc_function (sal.pc);
996 printf_filtered ("%s is in %s (%s:%d).\n",
997 paddress (gdbarch, sal.pc),
998 SYMBOL_PRINT_NAME (sym),
999 sal.symtab->filename, sal.line);
1001 printf_filtered ("%s is at %s:%d.\n",
1002 paddress (gdbarch, sal.pc),
1003 sal.symtab->filename, sal.line);
1006 /* If line was not specified by just a line number, and it does not
1007 imply a symtab, it must be an undebuggable symbol which means no
1010 if (!linenum_beg && sal.symtab == 0)
1011 error (_("No line number known for %s."), arg);
1013 /* If this command is repeated with RET,
1014 turn it into the no-arg variant. */
1019 if (dummy_beg && sal_end.symtab == 0)
1020 error (_("No default source file yet. Do \"help list\"."));
1022 print_source_lines (sal_end.symtab,
1023 max (sal_end.line - (get_lines_to_list () - 1), 1),
1024 sal_end.line + 1, 0);
1025 else if (sal.symtab == 0)
1026 error (_("No default source file yet. Do \"help list\"."));
1029 int first_line = sal.line - get_lines_to_list () / 2;
1031 if (first_line < 1) first_line = 1;
1033 print_source_lines (sal.symtab,
1035 first_line + get_lines_to_list (),
1039 print_source_lines (sal.symtab, sal.line,
1041 ? sal.line + get_lines_to_list ()
1042 : sal_end.line + 1),
1046 /* Subroutine of disassemble_command to simplify it.
1047 Perform the disassembly.
1048 NAME is the name of the function if known, or NULL.
1049 [LOW,HIGH) are the range of addresses to disassemble.
1050 MIXED is non-zero to print source with the assembler. */
1053 print_disassembly (struct gdbarch *gdbarch, const char *name,
1054 CORE_ADDR low, CORE_ADDR high, int flags)
1057 if (!tui_is_window_visible (DISASSEM_WIN))
1060 printf_filtered ("Dump of assembler code ");
1062 printf_filtered ("for function %s:\n", name);
1064 printf_filtered ("from %s to %s:\n",
1065 paddress (gdbarch, low), paddress (gdbarch, high));
1067 /* Dump the specified range. */
1068 gdb_disassembly (gdbarch, current_uiout, 0, flags, -1, low, high);
1070 printf_filtered ("End of assembler dump.\n");
1071 gdb_flush (gdb_stdout);
1076 tui_show_assembly (gdbarch, low);
1081 /* Subroutine of disassemble_command to simplify it.
1082 Print a disassembly of the current function according to FLAGS. */
1085 disassemble_current_function (int flags)
1087 struct frame_info *frame;
1088 struct gdbarch *gdbarch;
1089 CORE_ADDR low, high, pc;
1092 frame = get_selected_frame (_("No frame selected."));
1093 gdbarch = get_frame_arch (frame);
1094 pc = get_frame_address_in_block (frame);
1095 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1096 error (_("No function contains program counter for selected frame."));
1098 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1101 /* FIXME: cagney/2004-02-07: This should be an observer. */
1102 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1104 low += gdbarch_deprecated_function_start_offset (gdbarch);
1106 print_disassembly (gdbarch, name, low, high, flags);
1109 /* Dump a specified section of assembly code.
1113 - dump the assembly code for the function of the current pc
1114 disassemble [/mr] addr
1115 - dump the assembly code for the function at ADDR
1116 disassemble [/mr] low,high
1117 disassemble [/mr] low,+length
1118 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1120 A /m modifier will include source code with the assembly.
1121 A /r modifier will include raw instructions in hex with the assembly. */
1124 disassemble_command (char *arg, int from_tty)
1126 struct gdbarch *gdbarch = get_current_arch ();
1127 CORE_ADDR low, high;
1135 if (arg && *arg == '/')
1140 error (_("Missing modifier."));
1142 while (*arg && ! isspace (*arg))
1147 flags |= DISASSEMBLY_SOURCE;
1150 flags |= DISASSEMBLY_RAW_INSN;
1153 error (_("Invalid disassembly modifier."));
1157 while (isspace (*arg))
1161 if (! arg || ! *arg)
1163 flags |= DISASSEMBLY_OMIT_FNAME;
1164 disassemble_current_function (flags);
1168 pc = value_as_address (parse_to_comma_and_eval (&arg));
1174 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1175 error (_("No function contains specified address."));
1177 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1180 /* FIXME: cagney/2004-02-07: This should be an observer. */
1181 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1183 low += gdbarch_deprecated_function_start_offset (gdbarch);
1184 flags |= DISASSEMBLY_OMIT_FNAME;
1188 /* Two arguments. */
1191 while (isspace (*arg))
1198 high = parse_and_eval_address (arg);
1203 print_disassembly (gdbarch, name, low, high, flags);
1207 make_command (char *arg, int from_tty)
1215 p = xmalloc (sizeof ("make ") + strlen (arg));
1216 strcpy (p, "make ");
1217 strcpy (p + sizeof ("make ") - 1, arg);
1220 shell_escape (p, from_tty);
1224 show_user (char *args, int from_tty)
1226 struct cmd_list_element *c;
1227 extern struct cmd_list_element *cmdlist;
1231 char *comname = args;
1233 c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1234 /* c->user_commands would be NULL if it's a python command. */
1235 if (c->class != class_user || !c->user_commands)
1236 error (_("Not a user command."));
1237 show_user_1 (c, "", args, gdb_stdout);
1241 for (c = cmdlist; c; c = c->next)
1243 if (c->class == class_user || c->prefixlist != NULL)
1244 show_user_1 (c, "", c->name, gdb_stdout);
1249 /* Search through names of commands and documentations for a certain
1250 regular expression. */
1253 apropos_command (char *searchstr, int from_tty)
1258 if (searchstr == NULL)
1259 error (_("REGEXP string is empty"));
1261 code = regcomp (&pattern, searchstr, REG_ICASE);
1264 struct cleanup *cleanups;
1266 cleanups = make_regfree_cleanup (&pattern);
1267 apropos_cmd (gdb_stdout, cmdlist, &pattern, "");
1268 do_cleanups (cleanups);
1272 char *err = get_regcomp_error (code, &pattern);
1274 make_cleanup (xfree, err);
1275 error (_("Error in regular expression: %s"), err);
1279 /* Subroutine of alias_command to simplify it.
1280 Return the first N elements of ARGV flattened back to a string
1281 with a space separating each element.
1282 ARGV may not be NULL.
1283 This does not take care of quoting elements in case they contain spaces
1287 argv_to_dyn_string (char **argv, int n)
1290 dyn_string_t result = dyn_string_new (10);
1292 gdb_assert (argv != NULL);
1293 gdb_assert (n >= 0 && n <= countargv (argv));
1295 for (i = 0; i < n; ++i)
1298 dyn_string_append_char (result, ' ');
1299 dyn_string_append_cstr (result, argv[i]);
1305 /* Subroutine of alias_command to simplify it.
1306 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1309 valid_command_p (char *command)
1311 struct cmd_list_element *c;
1313 c = lookup_cmd_1 (& command, cmdlist, NULL, 1);
1315 if (c == NULL || c == (struct cmd_list_element *) -1)
1318 /* This is the slightly tricky part.
1319 lookup_cmd_1 will return a pointer to the last part of COMMAND
1320 to match, leaving COMMAND pointing at the remainder. */
1321 while (*command == ' ' || *command == '\t')
1323 return *command == '\0';
1326 /* Make an alias of an existing command. */
1329 alias_command (char *args, int from_tty)
1331 int i, alias_argc, command_argc;
1332 int abbrev_flag = 0;
1333 char *args2, *equals, *alias, *command;
1334 char **alias_argv, **command_argv;
1335 dyn_string_t alias_dyn_string, command_dyn_string;
1336 struct cmd_list_element *c;
1337 static const char usage[] = N_("Usage: alias [-a] [--] ALIAS = COMMAND");
1339 if (args == NULL || strchr (args, '=') == NULL)
1342 args2 = xstrdup (args);
1343 make_cleanup (xfree, args2);
1344 equals = strchr (args2, '=');
1346 alias_argv = gdb_buildargv (args2);
1347 make_cleanup_freeargv (alias_argv);
1348 command_argv = gdb_buildargv (equals + 1);
1349 make_cleanup_freeargv (command_argv);
1351 for (i = 0; alias_argv[i] != NULL; )
1353 if (strcmp (alias_argv[i], "-a") == 0)
1358 else if (strcmp (alias_argv[i], "--") == 0)
1367 if (alias_argv[0] == NULL || command_argv[0] == NULL
1368 || *alias_argv[0] == '\0' || *command_argv[0] == '\0')
1371 for (i = 0; alias_argv[i] != NULL; ++i)
1373 if (! valid_user_defined_cmd_name_p (alias_argv[i]))
1376 error (_("Invalid command name: %s"), alias_argv[i]);
1378 error (_("Invalid command element name: %s"), alias_argv[i]);
1382 alias_argc = countargv (alias_argv);
1383 command_argc = countargv (command_argv);
1385 /* COMMAND must exist.
1386 Reconstruct the command to remove any extraneous spaces,
1387 for better error messages. */
1388 command_dyn_string = argv_to_dyn_string (command_argv, command_argc);
1389 make_cleanup_dyn_string_delete (command_dyn_string);
1390 command = dyn_string_buf (command_dyn_string);
1391 if (! valid_command_p (command))
1392 error (_("Invalid command to alias to: %s"), command);
1394 /* ALIAS must not exist. */
1395 alias_dyn_string = argv_to_dyn_string (alias_argv, alias_argc);
1396 make_cleanup_dyn_string_delete (alias_dyn_string);
1397 alias = dyn_string_buf (alias_dyn_string);
1398 if (valid_command_p (alias))
1399 error (_("Alias already exists: %s"), alias);
1401 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1402 Example: alias spe = set print elements
1404 Otherwise ALIAS and COMMAND must have the same number of words,
1405 and every word except the last must match; and the last word of
1406 ALIAS is made an alias of the last word of COMMAND.
1407 Example: alias set print elms = set pr elem
1408 Note that unambiguous abbreviations are allowed. */
1410 if (alias_argc == 1)
1412 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1413 add_com_alias (xstrdup (alias_argv[0]), command, class_alias,
1418 dyn_string_t alias_prefix_dyn_string, command_prefix_dyn_string;
1419 char *alias_prefix, *command_prefix;
1420 struct cmd_list_element *c_alias, *c_command;
1422 if (alias_argc != command_argc)
1423 error (_("Mismatched command length between ALIAS and COMMAND."));
1425 /* Create copies of ALIAS and COMMAND without the last word,
1426 and use that to verify the leading elements match. */
1427 alias_prefix_dyn_string =
1428 argv_to_dyn_string (alias_argv, alias_argc - 1);
1429 make_cleanup_dyn_string_delete (alias_prefix_dyn_string);
1430 command_prefix_dyn_string =
1431 argv_to_dyn_string (alias_argv, command_argc - 1);
1432 make_cleanup_dyn_string_delete (command_prefix_dyn_string);
1433 alias_prefix = dyn_string_buf (alias_prefix_dyn_string);
1434 command_prefix = dyn_string_buf (command_prefix_dyn_string);
1436 c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1);
1437 /* We've already tried to look up COMMAND. */
1438 gdb_assert (c_command != NULL
1439 && c_command != (struct cmd_list_element *) -1);
1440 gdb_assert (c_command->prefixlist != NULL);
1441 c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1);
1442 if (c_alias != c_command)
1443 error (_("ALIAS and COMMAND prefixes do not match."));
1445 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1446 add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]),
1447 command_argv[command_argc - 1],
1448 class_alias, abbrev_flag, c_command->prefixlist);
1452 /* Print a list of files and line numbers which a user may choose from
1453 in order to list a function which was specified ambiguously (as
1454 with `list classname::overloadedfuncname', for example). The
1455 vector in SALS provides the filenames and line numbers. */
1458 ambiguous_line_spec (struct symtabs_and_lines *sals)
1462 for (i = 0; i < sals->nelts; ++i)
1463 printf_filtered (_("file: \"%s\", line number: %d\n"),
1464 sals->sals[i].symtab->filename, sals->sals[i].line);
1467 /* Sort function for filter_sals. */
1470 compare_symtabs (const void *a, const void *b)
1472 const struct symtab_and_line *sala = a;
1473 const struct symtab_and_line *salb = b;
1476 if (!sala->symtab->dirname)
1478 if (salb->symtab->dirname)
1481 else if (!salb->symtab->dirname)
1483 if (sala->symtab->dirname)
1488 r = filename_cmp (sala->symtab->dirname, salb->symtab->dirname);
1493 r = filename_cmp (sala->symtab->filename, salb->symtab->filename);
1497 if (sala->line < salb->line)
1499 return sala->line == salb->line ? 0 : 1;
1502 /* Remove any SALs that do not match the current program space, or
1503 which appear to be "file:line" duplicates. */
1506 filter_sals (struct symtabs_and_lines *sals)
1511 for (i = 0; i < sals->nelts; ++i)
1513 if (sals->sals[i].pspace == current_program_space
1514 && sals->sals[i].symtab != NULL)
1516 sals->sals[out] = sals->sals[i];
1522 qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line),
1527 for (i = 1; i < sals->nelts; ++i)
1529 if (compare_symtabs (&sals->sals[prev], &sals->sals[i]))
1531 /* Symtabs differ. */
1532 sals->sals[out] = sals->sals[i];
1538 if (sals->nelts == 0)
1548 set_debug (char *arg, int from_tty)
1550 printf_unfiltered (_("\"set debug\" must be followed by "
1551 "the name of a debug subcommand.\n"));
1552 help_list (setdebuglist, "set debug ", -1, gdb_stdout);
1556 show_debug (char *args, int from_tty)
1558 cmd_show_list (showdebuglist, from_tty, "");
1562 init_cmd_lists (void)
1564 max_user_call_depth = 1024;
1578 showhistlist = NULL;
1579 unsethistlist = NULL;
1580 maintenancelist = NULL;
1581 maintenanceinfolist = NULL;
1582 maintenanceprintlist = NULL;
1583 setprintlist = NULL;
1584 showprintlist = NULL;
1585 setchecklist = NULL;
1586 showchecklist = NULL;
1590 show_info_verbose (struct ui_file *file, int from_tty,
1591 struct cmd_list_element *c,
1595 fprintf_filtered (file,
1596 _("Verbose printing of informational messages is %s.\n"),
1599 fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1603 show_history_expansion_p (struct ui_file *file, int from_tty,
1604 struct cmd_list_element *c, const char *value)
1606 fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1611 show_baud_rate (struct ui_file *file, int from_tty,
1612 struct cmd_list_element *c, const char *value)
1614 fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"),
1619 show_remote_debug (struct ui_file *file, int from_tty,
1620 struct cmd_list_element *c, const char *value)
1622 fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1627 show_remote_timeout (struct ui_file *file, int from_tty,
1628 struct cmd_list_element *c, const char *value)
1630 fprintf_filtered (file,
1631 _("Timeout limit to wait for target to respond is %s.\n"),
1636 show_max_user_call_depth (struct ui_file *file, int from_tty,
1637 struct cmd_list_element *c, const char *value)
1639 fprintf_filtered (file,
1640 _("The max call depth for user-defined commands is %s.\n"),
1646 init_cli_cmds (void)
1648 struct cmd_list_element *c;
1649 char *source_help_text;
1651 /* Define the classes of commands.
1652 They will appear in the help list in alphabetical order. */
1654 add_cmd ("internals", class_maintenance, NULL, _("\
1655 Maintenance commands.\n\
1656 Some gdb commands are provided just for use by gdb maintainers.\n\
1657 These commands are subject to frequent change, and may not be as\n\
1658 well documented as user commands."),
1660 add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist);
1661 add_cmd ("aliases", class_alias, NULL,
1662 _("Aliases of other commands."), &cmdlist);
1663 add_cmd ("user-defined", class_user, NULL, _("\
1664 User-defined commands.\n\
1665 The commands in this class are those defined by the user.\n\
1666 Use the \"define\" command to define a command."), &cmdlist);
1667 add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
1669 add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
1670 add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
1672 add_cmd ("breakpoints", class_breakpoint, NULL,
1673 _("Making program stop at certain points."), &cmdlist);
1674 add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
1675 add_cmd ("stack", class_stack, NULL, _("\
1676 Examining the stack.\n\
1677 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1678 counting from zero for the innermost (currently executing) frame.\n\n\
1679 At any time gdb identifies one frame as the \"selected\" frame.\n\
1680 Variable lookups are done with respect to the selected frame.\n\
1681 When the program being debugged stops, gdb selects the innermost frame.\n\
1682 The commands below can be used to select other frames by number or address."),
1684 add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
1686 /* Define general commands. */
1688 add_com ("pwd", class_files, pwd_command, _("\
1689 Print working directory. This is used for your program as well."));
1691 c = add_cmd ("cd", class_files, cd_command, _("\
1692 Set working directory to DIR for debugger and program being debugged.\n\
1693 The change does not take effect for the program being debugged\n\
1694 until the next time it is started."), &cmdlist);
1695 set_cmd_completer (c, filename_completer);
1697 add_com ("echo", class_support, echo_command, _("\
1698 Print a constant string. Give string as argument.\n\
1699 C escape sequences may be used in the argument.\n\
1700 No newline is added at the end of the argument;\n\
1701 use \"\\n\" if you want a newline to be printed.\n\
1702 Since leading and trailing whitespace are ignored in command arguments,\n\
1703 if you want to print some you must use \"\\\" before leading whitespace\n\
1704 to be printed or after trailing whitespace."));
1705 add_com ("document", class_support, document_command, _("\
1706 Document a user-defined command.\n\
1707 Give command name as argument. Give documentation on following lines.\n\
1708 End with a line of just \"end\"."));
1709 add_com ("define", class_support, define_command, _("\
1710 Define a new command name. Command name is argument.\n\
1711 Definition appears on following lines, one command per line.\n\
1712 End with a line of just \"end\".\n\
1713 Use the \"document\" command to give documentation for the new command.\n\
1714 Commands defined in this way may have up to ten arguments."));
1716 source_help_text = xstrprintf (_("\
1717 Read commands from a file named FILE.\n\
1719 Usage: source [-s] [-v] FILE\n\
1720 -s: search for the script in the source search path,\n\
1721 even if FILE contains directories.\n\
1722 -v: each command in FILE is echoed as it is executed.\n\
1724 Note that the file \"%s\" is read automatically in this way\n\
1725 when GDB is started."), gdbinit);
1726 c = add_cmd ("source", class_support, source_command,
1727 source_help_text, &cmdlist);
1728 set_cmd_completer (c, filename_completer);
1730 add_setshow_enum_cmd ("script-extension", class_support,
1731 script_ext_enums, &script_ext_mode, _("\
1732 Set mode for script filename extension recognition."), _("\
1733 Show mode for script filename extension recognition."), _("\
1734 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1735 soft == evaluate script according to filename extension, fallback to GDB script"
1737 strict == evaluate script according to filename extension, error if not supported"
1740 show_script_ext_mode,
1741 &setlist, &showlist);
1743 add_com ("quit", class_support, quit_command, _("Exit gdb."));
1744 c = add_com ("help", class_support, help_command,
1745 _("Print list of commands."));
1746 set_cmd_completer (c, command_completer);
1747 add_com_alias ("q", "quit", class_support, 1);
1748 add_com_alias ("h", "help", class_support, 1);
1750 add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1751 Set verbosity."), _("\
1752 Show verbosity."), NULL,
1755 &setlist, &showlist);
1757 add_prefix_cmd ("history", class_support, set_history,
1758 _("Generic command for setting command history parameters."),
1759 &sethistlist, "set history ", 0, &setlist);
1760 add_prefix_cmd ("history", class_support, show_history,
1761 _("Generic command for showing command history parameters."),
1762 &showhistlist, "show history ", 0, &showlist);
1764 add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1765 Set history expansion on command input."), _("\
1766 Show history expansion on command input."), _("\
1767 Without an argument, history expansion is enabled."),
1769 show_history_expansion_p,
1770 &sethistlist, &showhistlist);
1772 add_prefix_cmd ("info", class_info, info_command, _("\
1773 Generic command for showing things about the program being debugged."),
1774 &infolist, "info ", 0, &cmdlist);
1775 add_com_alias ("i", "info", class_info, 1);
1776 add_com_alias ("inf", "info", class_info, 1);
1778 add_com ("complete", class_obscure, complete_command,
1779 _("List the completions for the rest of the line as a command."));
1781 add_prefix_cmd ("show", class_info, show_command, _("\
1782 Generic command for showing things about the debugger."),
1783 &showlist, "show ", 0, &cmdlist);
1784 /* Another way to get at the same thing. */
1785 add_info ("set", show_command, _("Show all GDB settings."));
1787 add_cmd ("commands", no_set_class, show_commands, _("\
1788 Show the history of commands you typed.\n\
1789 You can supply a command number to start with, or a `+' to start after\n\
1790 the previous command number shown."),
1793 add_cmd ("version", no_set_class, show_version,
1794 _("Show what version of GDB this is."), &showlist);
1796 add_com ("while", class_support, while_command, _("\
1797 Execute nested commands WHILE the conditional expression is non zero.\n\
1798 The conditional expression must follow the word `while' and must in turn be\n\
1799 followed by a new line. The nested commands must be entered one per line,\n\
1800 and should be terminated by the word `end'."));
1802 add_com ("if", class_support, if_command, _("\
1803 Execute nested commands once IF the conditional expression is non zero.\n\
1804 The conditional expression must follow the word `if' and must in turn be\n\
1805 followed by a new line. The nested commands must be entered one per line,\n\
1806 and should be terminated by the word 'else' or `end'. If an else clause\n\
1807 is used, the same rules apply to its nested commands as to the first ones."));
1809 /* If target is open when baud changes, it doesn't take effect until
1810 the next open (I think, not sure). */
1811 add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\
1812 Set baud rate for remote serial I/O."), _("\
1813 Show baud rate for remote serial I/O."), _("\
1814 This value is used to set the speed of the serial port when debugging\n\
1815 using remote targets."),
1818 &setlist, &showlist);
1820 add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1821 Set debugging of remote protocol."), _("\
1822 Show debugging of remote protocol."), _("\
1823 When enabled, each packet sent or received with the remote target\n\
1827 &setdebuglist, &showdebuglist);
1829 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class,
1830 &remote_timeout, _("\
1831 Set timeout limit to wait for target to respond."), _("\
1832 Show timeout limit to wait for target to respond."), _("\
1833 This value is used to set the time limit for gdb to wait for a response\n\
1836 show_remote_timeout,
1837 &setlist, &showlist);
1839 add_prefix_cmd ("debug", no_class, set_debug,
1840 _("Generic command for setting gdb debugging flags"),
1841 &setdebuglist, "set debug ", 0, &setlist);
1843 add_prefix_cmd ("debug", no_class, show_debug,
1844 _("Generic command for showing gdb debugging flags"),
1845 &showdebuglist, "show debug ", 0, &showlist);
1847 c = add_com ("shell", class_support, shell_escape, _("\
1848 Execute the rest of the line as a shell command.\n\
1849 With no arguments, run an inferior shell."));
1850 set_cmd_completer (c, filename_completer);
1852 c = add_com ("edit", class_files, edit_command, _("\
1853 Edit specified file or function.\n\
1854 With no argument, edits file containing most recent line listed.\n\
1855 Editing targets can be specified in these ways:\n\
1856 FILE:LINENUM, to edit at that line in that file,\n\
1857 FUNCTION, to edit at the beginning of that function,\n\
1858 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1859 *ADDRESS, to edit at the line containing that address.\n\
1860 Uses EDITOR environment variable contents as editor (or ex as default)."));
1862 c->completer = location_completer;
1864 add_com ("list", class_files, list_command, _("\
1865 List specified function or line.\n\
1866 With no argument, lists ten more lines after or around previous listing.\n\
1867 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1868 One argument specifies a line, and ten lines are listed around that line.\n\
1869 Two arguments with comma between specify starting and ending lines to list.\n\
1870 Lines can be specified in these ways:\n\
1871 LINENUM, to list around that line in current file,\n\
1872 FILE:LINENUM, to list around that line in that file,\n\
1873 FUNCTION, to list around beginning of that function,\n\
1874 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1875 *ADDRESS, to list around the line containing that address.\n\
1876 With two args if one is empty it stands for ten lines away from \
1880 add_com_alias ("l", "list", class_files, 1);
1882 add_com_alias ("v", "list", class_files, 1);
1885 add_com_alias ("file", "list", class_files, 1);
1887 c = add_com ("disassemble", class_vars, disassemble_command, _("\
1888 Disassemble a specified section of memory.\n\
1889 Default is the function surrounding the pc of the selected frame.\n\
1890 With a /m modifier, source lines are included (if available).\n\
1891 With a /r modifier, raw instructions in hex are included.\n\
1892 With a single argument, the function surrounding that address is dumped.\n\
1893 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1894 in the form of \"start,end\", or \"start,+length\"."));
1895 set_cmd_completer (c, location_completer);
1897 add_com_alias ("va", "disassemble", class_xdb, 0);
1899 add_com_alias ("!", "shell", class_support, 0);
1901 c = add_com ("make", class_support, make_command, _("\
1902 Run the ``make'' program using the rest of the line as arguments."));
1903 set_cmd_completer (c, filename_completer);
1904 add_cmd ("user", no_class, show_user, _("\
1905 Show definitions of non-python user defined commands.\n\
1906 Argument is the name of the user defined command.\n\
1907 With no argument, show definitions of all user defined commands."), &showlist);
1908 add_com ("apropos", class_support, apropos_command,
1909 _("Search for commands matching a REGEXP"));
1911 add_setshow_uinteger_cmd ("max-user-call-depth", no_class,
1912 &max_user_call_depth, _("\
1913 Set the max call depth for non-python user-defined commands."), _("\
1914 Show the max call depth for non-python user-defined commands."), NULL,
1916 show_max_user_call_depth,
1917 &setlist, &showlist);
1919 add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1920 Set tracing of GDB CLI commands."), _("\
1921 Show state of GDB CLI command tracing."), _("\
1922 When 'on', each command is displayed as it is executed."),
1925 &setlist, &showlist);
1927 c = add_com ("alias", class_support, alias_command, _("\
1928 Define a new command that is an alias of an existing command.\n\
1929 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1930 ALIAS is the name of the alias command to create.\n\
1931 COMMAND is the command being aliased to.\n\
1932 If \"-a\" is specified, the command is an abbreviation,\n\
1933 and will not appear in help command list output.\n\
1936 Make \"spe\" an alias of \"set print elements\":\n\
1937 alias spe = set print elements\n\
1938 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1939 alias -a set print elms = set print elements"));