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 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 "enable breakpoint" subcommands. */
141 struct cmd_list_element *enablebreaklist;
143 /* Chain containing all defined set subcommands */
145 struct cmd_list_element *setlist;
147 /* Chain containing all defined unset subcommands */
149 struct cmd_list_element *unsetlist;
151 /* Chain containing all defined show subcommands. */
153 struct cmd_list_element *showlist;
155 /* Chain containing all defined \"set history\". */
157 struct cmd_list_element *sethistlist;
159 /* Chain containing all defined \"show history\". */
161 struct cmd_list_element *showhistlist;
163 /* Chain containing all defined \"unset history\". */
165 struct cmd_list_element *unsethistlist;
167 /* Chain containing all defined maintenance subcommands. */
169 struct cmd_list_element *maintenancelist;
171 /* Chain containing all defined "maintenance info" subcommands. */
173 struct cmd_list_element *maintenanceinfolist;
175 /* Chain containing all defined "maintenance print" subcommands. */
177 struct cmd_list_element *maintenanceprintlist;
179 struct cmd_list_element *setprintlist;
181 struct cmd_list_element *showprintlist;
183 struct cmd_list_element *setdebuglist;
185 struct cmd_list_element *showdebuglist;
187 struct cmd_list_element *setchecklist;
189 struct cmd_list_element *showchecklist;
191 struct cmd_list_element *skiplist;
193 /* Command tracing state. */
195 int source_verbose = 0;
196 int trace_commands = 0;
198 /* 'script-extension' option support. */
200 static const char script_ext_off[] = "off";
201 static const char script_ext_soft[] = "soft";
202 static const char script_ext_strict[] = "strict";
204 static const char *const script_ext_enums[] = {
211 static const char *script_ext_mode = script_ext_soft;
213 /* Utility used everywhere when at least one argument is needed and
217 error_no_arg (char *why)
219 error (_("Argument required (%s)."), why);
222 /* The "info" command is defined as a prefix, with allow_unknown = 0.
223 Therefore, its own definition is called only for "info" with no
227 info_command (char *arg, int from_tty)
229 printf_unfiltered (_("\"info\" must be followed by "
230 "the name of an info command.\n"));
231 help_list (infolist, "info ", -1, gdb_stdout);
234 /* The "show" command with no arguments shows all the settings. */
237 show_command (char *arg, int from_tty)
239 cmd_show_list (showlist, from_tty, "");
242 /* Provide documentation on command or list given by COMMAND. FROM_TTY
246 help_command (char *command, int from_tty)
248 help_cmd (command, gdb_stdout);
251 /* The "complete" command is used by Emacs to implement completion. */
254 complete_command (char *arg, int from_tty)
257 char **completions, *point, *arg_prefix;
263 argpoint = strlen (arg);
265 /* complete_line assumes that its first argument is somewhere
266 within, and except for filenames at the beginning of, the word to
267 be completed. The following crude imitation of readline's
268 word-breaking tries to accomodate this. */
269 point = arg + argpoint;
272 if (strchr (rl_completer_word_break_characters, point[-1]) != 0)
277 arg_prefix = alloca (point - arg + 1);
278 memcpy (arg_prefix, arg, point - arg);
279 arg_prefix[point - arg] = 0;
281 completions = complete_line (point, arg, argpoint);
287 for (size = 0; completions[size]; ++size)
289 qsort (completions, size, sizeof (char *), compare_strings);
291 /* We do extra processing here since we only want to print each
298 printf_unfiltered ("%s%s\n", arg_prefix, completions[item]);
299 next_item = item + 1;
300 while (next_item < size
301 && ! strcmp (completions[item], completions[next_item]))
303 xfree (completions[next_item]);
307 xfree (completions[item]);
316 is_complete_command (struct cmd_list_element *c)
318 return cmd_cfunc_eq (c, complete_command);
322 show_version (char *args, int from_tty)
325 print_gdb_version (gdb_stdout);
326 printf_filtered ("\n");
330 /* Handle the quit command. */
333 quit_command (char *args, int from_tty)
335 if (!quit_confirm ())
336 error (_("Not confirmed."));
338 disconnect_tracing (from_tty);
340 quit_force (args, from_tty);
344 pwd_command (char *args, int from_tty)
347 error (_("The \"pwd\" command does not take an argument: %s"), args);
348 if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
349 error (_("Error finding name of working directory: %s"),
350 safe_strerror (errno));
352 if (strcmp (gdb_dirbuf, current_directory) != 0)
353 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
354 current_directory, gdb_dirbuf);
356 printf_unfiltered (_("Working directory %s.\n"), current_directory);
360 cd_command (char *dir, int from_tty)
363 /* Found something other than leading repetitions of "/..". */
367 /* If the new directory is absolute, repeat is a no-op; if relative,
368 repeat might be useful but is more likely to be a mistake. */
372 error_no_arg (_("new working directory"));
374 dir = tilde_expand (dir);
375 make_cleanup (xfree, dir);
378 perror_with_name (dir);
380 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
381 /* There's too much mess with DOSish names like "d:", "d:.",
382 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
383 simply get the canonicalized name of the current directory. */
384 dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
388 if (IS_DIR_SEPARATOR (dir[len - 1]))
390 /* Remove the trailing slash unless this is a root directory
391 (including a drive letter on non-Unix systems). */
392 if (!(len == 1) /* "/" */
393 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
394 && !(len == 3 && dir[1] == ':') /* "d:/" */
400 dir = savestring (dir, len);
401 if (IS_ABSOLUTE_PATH (dir))
402 current_directory = dir;
405 if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
406 current_directory = concat (current_directory, dir, (char *)NULL);
408 current_directory = concat (current_directory, SLASH_STRING,
413 /* Now simplify any occurrences of `.' and `..' in the pathname. */
416 for (p = current_directory; *p;)
418 if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
419 && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
421 else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
422 && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
426 /* Search backwards for the directory just before the "/.."
427 and obliterate it and the "/..". */
430 while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
433 if (q == current_directory)
434 /* current_directory is
435 a relative pathname ("can't happen"--leave it alone). */
439 strcpy (q - 1, p + 3);
444 /* We are dealing with leading repetitions of "/..", for
445 example "/../..", which is the Mach super-root. */
455 forget_cached_source_info ();
458 pwd_command ((char *) 0, 1);
461 /* Show the current value of the 'script-extension' option. */
464 show_script_ext_mode (struct ui_file *file, int from_tty,
465 struct cmd_list_element *c, const char *value)
467 fprintf_filtered (file,
468 _("Script filename extension recognition is \"%s\".\n"),
472 /* Try to open SCRIPT_FILE.
473 If successful, the full path name is stored in *FULL_PATHP,
474 the stream is stored in *STREAMP, and return 1.
475 The caller is responsible for freeing *FULL_PATHP.
476 If not successful, return 0; errno is set for the last file
479 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
480 search for it in the source search path.
482 NOTE: This calls openp which uses xfullpath to compute the full path
483 instead of gdb_realpath. Symbolic links are not resolved. */
486 find_and_open_script (const char *script_file, int search_path,
487 FILE **streamp, char **full_pathp)
491 struct cleanup *old_cleanups;
492 int search_flags = OPF_TRY_CWD_FIRST;
494 file = tilde_expand (script_file);
495 old_cleanups = make_cleanup (xfree, file);
498 search_flags |= OPF_SEARCH_IN_PATH;
500 /* Search for and open 'file' on the search path used for source
501 files. Put the full location in *FULL_PATHP. */
502 fd = openp (source_path, search_flags,
503 file, O_RDONLY, full_pathp);
507 int save_errno = errno;
508 do_cleanups (old_cleanups);
513 do_cleanups (old_cleanups);
515 *streamp = fdopen (fd, FOPEN_RT);
516 if (*streamp == NULL)
518 int save_errno = errno;
530 /* Load script FILE, which has already been opened as STREAM. */
533 source_script_from_stream (FILE *stream, const char *file)
535 if (script_ext_mode != script_ext_off
536 && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py"))
538 volatile struct gdb_exception e;
540 TRY_CATCH (e, RETURN_MASK_ERROR)
542 source_python_script (stream, file);
546 /* Should we fallback to ye olde GDB script mode? */
547 if (script_ext_mode == script_ext_soft
548 && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR)
550 fseek (stream, 0, SEEK_SET);
551 script_from_file (stream, (char*) file);
555 /* Nope, just punt. */
561 script_from_file (stream, file);
564 /* Worker to perform the "source" command.
566 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
567 search for it in the source search path. */
570 source_script_with_search (const char *file, int from_tty, int search_path)
574 struct cleanup *old_cleanups;
576 if (file == NULL || *file == 0)
577 error (_("source command requires file name of file to source."));
579 if (!find_and_open_script (file, search_path, &stream, &full_path))
581 /* The script wasn't found, or was otherwise inaccessible.
582 If the source command was invoked interactively, throw an
583 error. Otherwise (e.g. if it was invoked by a script),
584 silently ignore the error. */
586 perror_with_name (file);
591 old_cleanups = make_cleanup (xfree, full_path);
592 make_cleanup_fclose (stream);
593 /* The python support reopens the file, so we need to pass full_path here
594 in case the file was found on the search path. It's useful to do this
595 anyway so that error messages show the actual file used. But only do
596 this if we (may have) used search_path, as printing the full path in
597 errors for the non-search case can be more noise than signal. */
598 source_script_from_stream (stream, search_path ? full_path : file);
599 do_cleanups (old_cleanups);
602 /* Wrapper around source_script_with_search to export it to main.c
603 for use in loading .gdbinit scripts. */
606 source_script (char *file, int from_tty)
608 source_script_with_search (file, from_tty, 0);
611 /* Return the source_verbose global variable to its previous state
612 on exit from the source command, by whatever means. */
614 source_verbose_cleanup (void *old_value)
616 source_verbose = *(int *)old_value;
621 source_command (char *args, int from_tty)
623 struct cleanup *old_cleanups;
625 int *old_source_verbose = xmalloc (sizeof(int));
628 *old_source_verbose = source_verbose;
629 old_cleanups = make_cleanup (source_verbose_cleanup,
632 /* -v causes the source command to run in verbose mode.
633 -s causes the file to be searched in the source search path,
634 even if the file name contains a '/'.
635 We still have to be able to handle filenames with spaces in a
636 backward compatible way, so buildargv is not appropriate. */
640 while (args[0] != '\0')
642 /* Make sure leading white space does not break the
644 while (isspace(args[0]))
650 if (args[1] == 'v' && isspace (args[2]))
654 /* Skip passed -v. */
657 else if (args[1] == 's' && isspace (args[2]))
661 /* Skip passed -s. */
668 while (isspace (args[0]))
673 source_script_with_search (file, from_tty, search_path);
675 do_cleanups (old_cleanups);
680 echo_command (char *text, int from_tty)
686 while ((c = *p++) != '\0')
690 /* \ at end of argument is used after spaces
691 so they won't be lost. */
695 c = parse_escape (get_current_arch (), &p);
697 printf_filtered ("%c", c);
700 printf_filtered ("%c", c);
703 /* Force this output to appear now. */
705 gdb_flush (gdb_stdout);
709 shell_escape (char *arg, int from_tty)
711 #if defined(CANT_FORK) || \
712 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
713 /* If ARG is NULL, they want an inferior shell, but `system' just
714 reports if the shell is available when passed a NULL arg. */
715 int rc = system (arg ? arg : "");
718 arg = "inferior shell";
722 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
723 safe_strerror (errno));
724 gdb_flush (gdb_stderr);
728 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
729 gdb_flush (gdb_stderr);
732 /* Make sure to return to the directory GDB thinks it is, in case
733 the shell command we just ran changed it. */
734 chdir (current_directory);
736 #else /* Can fork. */
739 if ((pid = vfork ()) == 0)
741 const char *p, *user_shell;
743 if ((user_shell = (char *) getenv ("SHELL")) == NULL)
744 user_shell = "/bin/sh";
746 /* Get the name of the shell for arg0. */
747 p = lbasename (user_shell);
750 execl (user_shell, p, (char *) 0);
752 execl (user_shell, p, "-c", arg, (char *) 0);
754 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
755 safe_strerror (errno));
756 gdb_flush (gdb_stderr);
761 waitpid (pid, &status, 0);
763 error (_("Fork failed"));
764 #endif /* Can fork. */
768 edit_command (char *arg, int from_tty)
770 struct symtabs_and_lines sals;
771 struct symtab_and_line sal;
777 /* Pull in the current default source line if necessary. */
780 set_default_source_symtab_and_line ();
781 sal = get_current_source_symtab_and_line ();
784 /* Bare "edit" edits file with present line. */
789 error (_("No default source file yet."));
790 sal.line += get_lines_to_list () / 2;
794 /* Now should only be one argument -- decode it in SAL. */
797 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
807 ambiguous_line_spec (&sals);
816 error (_("Junk at end of line specification."));
818 /* If line was specified by address, first print exactly which
819 line, and which file. In this case, sal.symtab == 0 means
820 address is outside of all known source files, not that user
821 failed to give a filename. */
824 struct gdbarch *gdbarch;
827 /* FIXME-32x64--assumes sal.pc fits in long. */
828 error (_("No source file for address %s."),
829 hex_string ((unsigned long) sal.pc));
831 gdbarch = get_objfile_arch (sal.symtab->objfile);
832 sym = find_pc_function (sal.pc);
834 printf_filtered ("%s is in %s (%s:%d).\n",
835 paddress (gdbarch, sal.pc),
836 SYMBOL_PRINT_NAME (sym),
837 sal.symtab->filename, sal.line);
839 printf_filtered ("%s is at %s:%d.\n",
840 paddress (gdbarch, sal.pc),
841 sal.symtab->filename, sal.line);
844 /* If what was given does not imply a symtab, it must be an
845 undebuggable symbol which means no source code. */
848 error (_("No line number known for %s."), arg);
851 if ((editor = (char *) getenv ("EDITOR")) == NULL)
854 /* If we don't already know the full absolute file name of the
855 source file, find it now. */
856 if (!sal.symtab->fullname)
858 fn = symtab_to_fullname (sal.symtab);
863 fn = sal.symtab->fullname;
865 /* Quote the file name, in case it has whitespace or other special
867 p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
868 shell_escape (p, from_tty);
873 list_command (char *arg, int from_tty)
875 struct symtabs_and_lines sals, sals_end;
876 struct symtab_and_line sal = { 0 };
877 struct symtab_and_line sal_end = { 0 };
878 struct symtab_and_line cursal = { 0 };
887 /* Pull in the current default source line if necessary. */
888 if (arg == 0 || arg[0] == '+' || arg[0] == '-')
890 set_default_source_symtab_and_line ();
891 cursal = get_current_source_symtab_and_line ();
894 /* "l" or "l +" lists next ten lines. */
896 if (arg == 0 || strcmp (arg, "+") == 0)
898 print_source_lines (cursal.symtab, cursal.line,
899 cursal.line + get_lines_to_list (), 0);
903 /* "l -" lists previous ten lines, the ones before the ten just
905 if (strcmp (arg, "-") == 0)
907 print_source_lines (cursal.symtab,
908 max (get_first_line_listed ()
909 - get_lines_to_list (), 1),
910 get_first_line_listed (), 0);
914 /* Now if there is only one argument, decode it in SAL
916 If there are two arguments, decode them in SAL and SAL_END
917 and clear NO_END; however, if one of the arguments is blank,
918 set DUMMY_BEG or DUMMY_END to record that fact. */
920 if (!have_full_symbols () && !have_partial_symbols ())
921 error (_("No symbol table is loaded. Use the \"file\" command."));
928 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
935 ambiguous_line_spec (&sals);
944 /* Record whether the BEG arg is all digits. */
946 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
947 linenum_beg = (p == arg1);
949 while (*arg1 == ' ' || *arg1 == '\t')
955 while (*arg1 == ' ' || *arg1 == '\t')
962 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
964 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE,
965 sal.symtab, sal.line);
967 if (sals_end.nelts == 0)
969 if (sals_end.nelts > 1)
971 ambiguous_line_spec (&sals_end);
972 xfree (sals_end.sals);
975 sal_end = sals_end.sals[0];
976 xfree (sals_end.sals);
981 error (_("Junk at end of line specification."));
983 if (!no_end && !dummy_beg && !dummy_end
984 && sal.symtab != sal_end.symtab)
985 error (_("Specified start and end are in different files."));
986 if (dummy_beg && dummy_end)
987 error (_("Two empty args do not say what lines to list."));
989 /* If line was specified by address,
990 first print exactly which line, and which file.
992 In this case, sal.symtab == 0 means address is outside of all
993 known source files, not that user failed to give a filename. */
996 struct gdbarch *gdbarch;
999 /* FIXME-32x64--assumes sal.pc fits in long. */
1000 error (_("No source file for address %s."),
1001 hex_string ((unsigned long) sal.pc));
1003 gdbarch = get_objfile_arch (sal.symtab->objfile);
1004 sym = find_pc_function (sal.pc);
1006 printf_filtered ("%s is in %s (%s:%d).\n",
1007 paddress (gdbarch, sal.pc),
1008 SYMBOL_PRINT_NAME (sym),
1009 sal.symtab->filename, sal.line);
1011 printf_filtered ("%s is at %s:%d.\n",
1012 paddress (gdbarch, sal.pc),
1013 sal.symtab->filename, sal.line);
1016 /* If line was not specified by just a line number, and it does not
1017 imply a symtab, it must be an undebuggable symbol which means no
1020 if (!linenum_beg && sal.symtab == 0)
1021 error (_("No line number known for %s."), arg);
1023 /* If this command is repeated with RET,
1024 turn it into the no-arg variant. */
1029 if (dummy_beg && sal_end.symtab == 0)
1030 error (_("No default source file yet. Do \"help list\"."));
1032 print_source_lines (sal_end.symtab,
1033 max (sal_end.line - (get_lines_to_list () - 1), 1),
1034 sal_end.line + 1, 0);
1035 else if (sal.symtab == 0)
1036 error (_("No default source file yet. Do \"help list\"."));
1039 int first_line = sal.line - get_lines_to_list () / 2;
1041 if (first_line < 1) first_line = 1;
1043 print_source_lines (sal.symtab,
1045 first_line + get_lines_to_list (),
1049 print_source_lines (sal.symtab, sal.line,
1051 ? sal.line + get_lines_to_list ()
1052 : sal_end.line + 1),
1056 /* Subroutine of disassemble_command to simplify it.
1057 Perform the disassembly.
1058 NAME is the name of the function if known, or NULL.
1059 [LOW,HIGH) are the range of addresses to disassemble.
1060 MIXED is non-zero to print source with the assembler. */
1063 print_disassembly (struct gdbarch *gdbarch, const char *name,
1064 CORE_ADDR low, CORE_ADDR high, int flags)
1067 if (!tui_is_window_visible (DISASSEM_WIN))
1070 printf_filtered ("Dump of assembler code ");
1072 printf_filtered ("for function %s:\n", name);
1074 printf_filtered ("from %s to %s:\n",
1075 paddress (gdbarch, low), paddress (gdbarch, high));
1077 /* Dump the specified range. */
1078 gdb_disassembly (gdbarch, current_uiout, 0, flags, -1, low, high);
1080 printf_filtered ("End of assembler dump.\n");
1081 gdb_flush (gdb_stdout);
1086 tui_show_assembly (gdbarch, low);
1091 /* Subroutine of disassemble_command to simplify it.
1092 Print a disassembly of the current function according to FLAGS. */
1095 disassemble_current_function (int flags)
1097 struct frame_info *frame;
1098 struct gdbarch *gdbarch;
1099 CORE_ADDR low, high, pc;
1102 frame = get_selected_frame (_("No frame selected."));
1103 gdbarch = get_frame_arch (frame);
1104 pc = get_frame_pc (frame);
1105 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1106 error (_("No function contains program counter for selected frame."));
1108 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1111 /* FIXME: cagney/2004-02-07: This should be an observer. */
1112 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1114 low += gdbarch_deprecated_function_start_offset (gdbarch);
1116 print_disassembly (gdbarch, name, low, high, flags);
1119 /* Dump a specified section of assembly code.
1123 - dump the assembly code for the function of the current pc
1124 disassemble [/mr] addr
1125 - dump the assembly code for the function at ADDR
1126 disassemble [/mr] low,high
1127 disassemble [/mr] low,+length
1128 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1130 A /m modifier will include source code with the assembly.
1131 A /r modifier will include raw instructions in hex with the assembly. */
1134 disassemble_command (char *arg, int from_tty)
1136 struct gdbarch *gdbarch = get_current_arch ();
1137 CORE_ADDR low, high;
1145 if (arg && *arg == '/')
1150 error (_("Missing modifier."));
1152 while (*arg && ! isspace (*arg))
1157 flags |= DISASSEMBLY_SOURCE;
1160 flags |= DISASSEMBLY_RAW_INSN;
1163 error (_("Invalid disassembly modifier."));
1167 while (isspace (*arg))
1171 if (! arg || ! *arg)
1173 flags |= DISASSEMBLY_OMIT_FNAME;
1174 disassemble_current_function (flags);
1178 pc = value_as_address (parse_to_comma_and_eval (&arg));
1184 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1185 error (_("No function contains specified address."));
1187 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1190 /* FIXME: cagney/2004-02-07: This should be an observer. */
1191 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1193 low += gdbarch_deprecated_function_start_offset (gdbarch);
1194 flags |= DISASSEMBLY_OMIT_FNAME;
1198 /* Two arguments. */
1201 while (isspace (*arg))
1208 high = parse_and_eval_address (arg);
1213 print_disassembly (gdbarch, name, low, high, flags);
1217 make_command (char *arg, int from_tty)
1225 p = xmalloc (sizeof ("make ") + strlen (arg));
1226 strcpy (p, "make ");
1227 strcpy (p + sizeof ("make ") - 1, arg);
1230 shell_escape (p, from_tty);
1234 show_user (char *args, int from_tty)
1236 struct cmd_list_element *c;
1237 extern struct cmd_list_element *cmdlist;
1241 char *comname = args;
1243 c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1244 /* c->user_commands would be NULL if it's a python command. */
1245 if (c->class != class_user || !c->user_commands)
1246 error (_("Not a user command."));
1247 show_user_1 (c, "", args, gdb_stdout);
1251 for (c = cmdlist; c; c = c->next)
1253 if (c->class == class_user || c->prefixlist != NULL)
1254 show_user_1 (c, "", c->name, gdb_stdout);
1259 /* Search through names of commands and documentations for a certain
1260 regular expression. */
1263 apropos_command (char *searchstr, int from_tty)
1268 if (searchstr == NULL)
1269 error (_("REGEXP string is empty"));
1271 code = regcomp (&pattern, searchstr, REG_ICASE);
1274 struct cleanup *cleanups;
1276 cleanups = make_regfree_cleanup (&pattern);
1277 apropos_cmd (gdb_stdout, cmdlist, &pattern, "");
1278 do_cleanups (cleanups);
1282 char *err = get_regcomp_error (code, &pattern);
1284 make_cleanup (xfree, err);
1285 error (_("Error in regular expression: %s"), err);
1289 /* Subroutine of alias_command to simplify it.
1290 Return the first N elements of ARGV flattened back to a string
1291 with a space separating each element.
1292 ARGV may not be NULL.
1293 This does not take care of quoting elements in case they contain spaces
1297 argv_to_dyn_string (char **argv, int n)
1300 dyn_string_t result = dyn_string_new (10);
1302 gdb_assert (argv != NULL);
1303 gdb_assert (n >= 0 && n <= countargv (argv));
1305 for (i = 0; i < n; ++i)
1308 dyn_string_append_char (result, ' ');
1309 dyn_string_append_cstr (result, argv[i]);
1315 /* Subroutine of alias_command to simplify it.
1316 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1319 valid_command_p (char *command)
1321 struct cmd_list_element *c;
1323 c = lookup_cmd_1 (& command, cmdlist, NULL, 1);
1325 if (c == NULL || c == (struct cmd_list_element *) -1)
1328 /* This is the slightly tricky part.
1329 lookup_cmd_1 will return a pointer to the last part of COMMAND
1330 to match, leaving COMMAND pointing at the remainder. */
1331 while (*command == ' ' || *command == '\t')
1333 return *command == '\0';
1336 /* Make an alias of an existing command. */
1339 alias_command (char *args, int from_tty)
1341 int i, alias_argc, command_argc;
1342 int abbrev_flag = 0;
1343 char *args2, *equals, *alias, *command;
1344 char **alias_argv, **command_argv;
1345 dyn_string_t alias_dyn_string, command_dyn_string;
1346 struct cmd_list_element *c;
1347 static const char usage[] = N_("Usage: alias [-a] [--] ALIAS = COMMAND");
1349 if (args == NULL || strchr (args, '=') == NULL)
1352 args2 = xstrdup (args);
1353 make_cleanup (xfree, args2);
1354 equals = strchr (args2, '=');
1356 alias_argv = gdb_buildargv (args2);
1357 make_cleanup_freeargv (alias_argv);
1358 command_argv = gdb_buildargv (equals + 1);
1359 make_cleanup_freeargv (command_argv);
1361 for (i = 0; alias_argv[i] != NULL; )
1363 if (strcmp (alias_argv[i], "-a") == 0)
1368 else if (strcmp (alias_argv[i], "--") == 0)
1377 if (alias_argv[0] == NULL || command_argv[0] == NULL
1378 || *alias_argv[0] == '\0' || *command_argv[0] == '\0')
1381 for (i = 0; alias_argv[i] != NULL; ++i)
1383 if (! valid_user_defined_cmd_name_p (alias_argv[i]))
1386 error (_("Invalid command name: %s"), alias_argv[i]);
1388 error (_("Invalid command element name: %s"), alias_argv[i]);
1392 alias_argc = countargv (alias_argv);
1393 command_argc = countargv (command_argv);
1395 /* COMMAND must exist.
1396 Reconstruct the command to remove any extraneous spaces,
1397 for better error messages. */
1398 command_dyn_string = argv_to_dyn_string (command_argv, command_argc);
1399 make_cleanup_dyn_string_delete (command_dyn_string);
1400 command = dyn_string_buf (command_dyn_string);
1401 if (! valid_command_p (command))
1402 error (_("Invalid command to alias to: %s"), command);
1404 /* ALIAS must not exist. */
1405 alias_dyn_string = argv_to_dyn_string (alias_argv, alias_argc);
1406 make_cleanup_dyn_string_delete (alias_dyn_string);
1407 alias = dyn_string_buf (alias_dyn_string);
1408 if (valid_command_p (alias))
1409 error (_("Alias already exists: %s"), alias);
1411 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1412 Example: alias spe = set print elements
1414 Otherwise ALIAS and COMMAND must have the same number of words,
1415 and every word except the last must match; and the last word of
1416 ALIAS is made an alias of the last word of COMMAND.
1417 Example: alias set print elms = set pr elem
1418 Note that unambiguous abbreviations are allowed. */
1420 if (alias_argc == 1)
1422 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1423 add_com_alias (xstrdup (alias_argv[0]), command, class_alias,
1429 dyn_string_t alias_prefix_dyn_string, command_prefix_dyn_string;
1430 char *alias_prefix, *command_prefix;
1431 struct cmd_list_element *c_alias, *c_command;
1433 if (alias_argc != command_argc)
1434 error (_("Mismatched command length between ALIAS and COMMAND."));
1436 /* Create copies of ALIAS and COMMAND without the last word,
1437 and use that to verify the leading elements match. */
1438 alias_prefix_dyn_string =
1439 argv_to_dyn_string (alias_argv, alias_argc - 1);
1440 make_cleanup_dyn_string_delete (alias_prefix_dyn_string);
1441 command_prefix_dyn_string =
1442 argv_to_dyn_string (alias_argv, command_argc - 1);
1443 make_cleanup_dyn_string_delete (command_prefix_dyn_string);
1444 alias_prefix = dyn_string_buf (alias_prefix_dyn_string);
1445 command_prefix = dyn_string_buf (command_prefix_dyn_string);
1447 c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1);
1448 /* We've already tried to look up COMMAND. */
1449 gdb_assert (c_command != NULL
1450 && c_command != (struct cmd_list_element *) -1);
1451 gdb_assert (c_command->prefixlist != NULL);
1452 c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1);
1453 if (c_alias != c_command)
1454 error (_("ALIAS and COMMAND prefixes do not match."));
1456 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1457 add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]),
1458 command_argv[command_argc - 1],
1459 class_alias, abbrev_flag, c_command->prefixlist);
1463 /* Print a list of files and line numbers which a user may choose from
1464 in order to list a function which was specified ambiguously (as
1465 with `list classname::overloadedfuncname', for example). The
1466 vector in SALS provides the filenames and line numbers. */
1469 ambiguous_line_spec (struct symtabs_and_lines *sals)
1473 for (i = 0; i < sals->nelts; ++i)
1474 printf_filtered (_("file: \"%s\", line number: %d\n"),
1475 sals->sals[i].symtab->filename, sals->sals[i].line);
1478 /* Sort function for filter_sals. */
1481 compare_symtabs (const void *a, const void *b)
1483 const struct symtab_and_line *sala = a;
1484 const struct symtab_and_line *salb = b;
1487 if (!sala->symtab->dirname)
1489 if (salb->symtab->dirname)
1492 else if (!salb->symtab->dirname)
1494 if (sala->symtab->dirname)
1499 r = filename_cmp (sala->symtab->dirname, salb->symtab->dirname);
1504 r = filename_cmp (sala->symtab->filename, salb->symtab->filename);
1508 if (sala->line < salb->line)
1510 return sala->line == salb->line ? 0 : 1;
1513 /* Remove any SALs that do not match the current program space, or
1514 which appear to be "file:line" duplicates. */
1517 filter_sals (struct symtabs_and_lines *sals)
1522 for (i = 0; i < sals->nelts; ++i)
1524 if (sals->sals[i].pspace == current_program_space
1525 && sals->sals[i].symtab != NULL)
1527 sals->sals[out] = sals->sals[i];
1533 qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line),
1538 for (i = 1; i < sals->nelts; ++i)
1540 if (compare_symtabs (&sals->sals[prev], &sals->sals[i]))
1542 /* Symtabs differ. */
1543 sals->sals[out] = sals->sals[i];
1550 if (sals->nelts == 0)
1558 set_debug (char *arg, int from_tty)
1560 printf_unfiltered (_("\"set debug\" must be followed by "
1561 "the name of a debug subcommand.\n"));
1562 help_list (setdebuglist, "set debug ", -1, gdb_stdout);
1566 show_debug (char *args, int from_tty)
1568 cmd_show_list (showdebuglist, from_tty, "");
1572 init_cmd_lists (void)
1574 max_user_call_depth = 1024;
1584 enablebreaklist = NULL;
1589 showhistlist = NULL;
1590 unsethistlist = NULL;
1591 maintenancelist = NULL;
1592 maintenanceinfolist = NULL;
1593 maintenanceprintlist = NULL;
1594 setprintlist = NULL;
1595 showprintlist = NULL;
1596 setchecklist = NULL;
1597 showchecklist = NULL;
1602 show_info_verbose (struct ui_file *file, int from_tty,
1603 struct cmd_list_element *c,
1607 fprintf_filtered (file,
1608 _("Verbose printing of informational messages is %s.\n"),
1611 fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1615 show_history_expansion_p (struct ui_file *file, int from_tty,
1616 struct cmd_list_element *c, const char *value)
1618 fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1623 show_baud_rate (struct ui_file *file, int from_tty,
1624 struct cmd_list_element *c, const char *value)
1626 fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"),
1631 show_remote_debug (struct ui_file *file, int from_tty,
1632 struct cmd_list_element *c, const char *value)
1634 fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1639 show_remote_timeout (struct ui_file *file, int from_tty,
1640 struct cmd_list_element *c, const char *value)
1642 fprintf_filtered (file,
1643 _("Timeout limit to wait for target to respond is %s.\n"),
1648 show_max_user_call_depth (struct ui_file *file, int from_tty,
1649 struct cmd_list_element *c, const char *value)
1651 fprintf_filtered (file,
1652 _("The max call depth for user-defined commands is %s.\n"),
1658 init_cli_cmds (void)
1660 struct cmd_list_element *c;
1661 char *source_help_text;
1663 /* Define the classes of commands.
1664 They will appear in the help list in alphabetical order. */
1666 add_cmd ("internals", class_maintenance, NULL, _("\
1667 Maintenance commands.\n\
1668 Some gdb commands are provided just for use by gdb maintainers.\n\
1669 These commands are subject to frequent change, and may not be as\n\
1670 well documented as user commands."),
1672 add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist);
1673 add_cmd ("aliases", class_alias, NULL,
1674 _("Aliases of other commands."), &cmdlist);
1675 add_cmd ("user-defined", class_user, NULL, _("\
1676 User-defined commands.\n\
1677 The commands in this class are those defined by the user.\n\
1678 Use the \"define\" command to define a command."), &cmdlist);
1679 add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
1681 add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
1682 add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
1684 add_cmd ("breakpoints", class_breakpoint, NULL,
1685 _("Making program stop at certain points."), &cmdlist);
1686 add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
1687 add_cmd ("stack", class_stack, NULL, _("\
1688 Examining the stack.\n\
1689 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1690 counting from zero for the innermost (currently executing) frame.\n\n\
1691 At any time gdb identifies one frame as the \"selected\" frame.\n\
1692 Variable lookups are done with respect to the selected frame.\n\
1693 When the program being debugged stops, gdb selects the innermost frame.\n\
1694 The commands below can be used to select other frames by number or address."),
1696 add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
1698 /* Define general commands. */
1700 add_com ("pwd", class_files, pwd_command, _("\
1701 Print working directory. This is used for your program as well."));
1703 c = add_cmd ("cd", class_files, cd_command, _("\
1704 Set working directory to DIR for debugger and program being debugged.\n\
1705 The change does not take effect for the program being debugged\n\
1706 until the next time it is started."), &cmdlist);
1707 set_cmd_completer (c, filename_completer);
1709 add_com ("echo", class_support, echo_command, _("\
1710 Print a constant string. Give string as argument.\n\
1711 C escape sequences may be used in the argument.\n\
1712 No newline is added at the end of the argument;\n\
1713 use \"\\n\" if you want a newline to be printed.\n\
1714 Since leading and trailing whitespace are ignored in command arguments,\n\
1715 if you want to print some you must use \"\\\" before leading whitespace\n\
1716 to be printed or after trailing whitespace."));
1717 add_com ("document", class_support, document_command, _("\
1718 Document a user-defined command.\n\
1719 Give command name as argument. Give documentation on following lines.\n\
1720 End with a line of just \"end\"."));
1721 add_com ("define", class_support, define_command, _("\
1722 Define a new command name. Command name is argument.\n\
1723 Definition appears on following lines, one command per line.\n\
1724 End with a line of just \"end\".\n\
1725 Use the \"document\" command to give documentation for the new command.\n\
1726 Commands defined in this way may have up to ten arguments."));
1728 source_help_text = xstrprintf (_("\
1729 Read commands from a file named FILE.\n\
1731 Usage: source [-s] [-v] FILE\n\
1732 -s: search for the script in the source search path,\n\
1733 even if FILE contains directories.\n\
1734 -v: each command in FILE is echoed as it is executed.\n\
1736 Note that the file \"%s\" is read automatically in this way\n\
1737 when GDB is started."), gdbinit);
1738 c = add_cmd ("source", class_support, source_command,
1739 source_help_text, &cmdlist);
1740 set_cmd_completer (c, filename_completer);
1742 add_setshow_enum_cmd ("script-extension", class_support,
1743 script_ext_enums, &script_ext_mode, _("\
1744 Set mode for script filename extension recognition."), _("\
1745 Show mode for script filename extension recognition."), _("\
1746 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1747 soft == evaluate script according to filename extension, fallback to GDB script"
1749 strict == evaluate script according to filename extension, error if not supported"
1752 show_script_ext_mode,
1753 &setlist, &showlist);
1755 add_com ("quit", class_support, quit_command, _("Exit gdb."));
1756 c = add_com ("help", class_support, help_command,
1757 _("Print list of commands."));
1758 set_cmd_completer (c, command_completer);
1759 add_com_alias ("q", "quit", class_support, 1);
1760 add_com_alias ("h", "help", class_support, 1);
1762 add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1763 Set verbosity."), _("\
1764 Show verbosity."), NULL,
1767 &setlist, &showlist);
1769 add_prefix_cmd ("history", class_support, set_history,
1770 _("Generic command for setting command history parameters."),
1771 &sethistlist, "set history ", 0, &setlist);
1772 add_prefix_cmd ("history", class_support, show_history,
1773 _("Generic command for showing command history parameters."),
1774 &showhistlist, "show history ", 0, &showlist);
1776 add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1777 Set history expansion on command input."), _("\
1778 Show history expansion on command input."), _("\
1779 Without an argument, history expansion is enabled."),
1781 show_history_expansion_p,
1782 &sethistlist, &showhistlist);
1784 add_prefix_cmd ("info", class_info, info_command, _("\
1785 Generic command for showing things about the program being debugged."),
1786 &infolist, "info ", 0, &cmdlist);
1787 add_com_alias ("i", "info", class_info, 1);
1788 add_com_alias ("inf", "info", class_info, 1);
1790 add_com ("complete", class_obscure, complete_command,
1791 _("List the completions for the rest of the line as a command."));
1793 add_prefix_cmd ("show", class_info, show_command, _("\
1794 Generic command for showing things about the debugger."),
1795 &showlist, "show ", 0, &cmdlist);
1796 /* Another way to get at the same thing. */
1797 add_info ("set", show_command, _("Show all GDB settings."));
1799 add_cmd ("commands", no_set_class, show_commands, _("\
1800 Show the history of commands you typed.\n\
1801 You can supply a command number to start with, or a `+' to start after\n\
1802 the previous command number shown."),
1805 add_cmd ("version", no_set_class, show_version,
1806 _("Show what version of GDB this is."), &showlist);
1808 add_com ("while", class_support, while_command, _("\
1809 Execute nested commands WHILE the conditional expression is non zero.\n\
1810 The conditional expression must follow the word `while' and must in turn be\n\
1811 followed by a new line. The nested commands must be entered one per line,\n\
1812 and should be terminated by the word `end'."));
1814 add_com ("if", class_support, if_command, _("\
1815 Execute nested commands once IF the conditional expression is non zero.\n\
1816 The conditional expression must follow the word `if' and must in turn be\n\
1817 followed by a new line. The nested commands must be entered one per line,\n\
1818 and should be terminated by the word 'else' or `end'. If an else clause\n\
1819 is used, the same rules apply to its nested commands as to the first ones."));
1821 /* If target is open when baud changes, it doesn't take effect until
1822 the next open (I think, not sure). */
1823 add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\
1824 Set baud rate for remote serial I/O."), _("\
1825 Show baud rate for remote serial I/O."), _("\
1826 This value is used to set the speed of the serial port when debugging\n\
1827 using remote targets."),
1830 &setlist, &showlist);
1832 add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1833 Set debugging of remote protocol."), _("\
1834 Show debugging of remote protocol."), _("\
1835 When enabled, each packet sent or received with the remote target\n\
1839 &setdebuglist, &showdebuglist);
1841 add_setshow_integer_cmd ("remotetimeout", no_class, &remote_timeout, _("\
1842 Set timeout limit to wait for target to respond."), _("\
1843 Show timeout limit to wait for target to respond."), _("\
1844 This value is used to set the time limit for gdb to wait for a response\n\
1847 show_remote_timeout,
1848 &setlist, &showlist);
1850 add_prefix_cmd ("debug", no_class, set_debug,
1851 _("Generic command for setting gdb debugging flags"),
1852 &setdebuglist, "set debug ", 0, &setlist);
1854 add_prefix_cmd ("debug", no_class, show_debug,
1855 _("Generic command for showing gdb debugging flags"),
1856 &showdebuglist, "show debug ", 0, &showlist);
1858 c = add_com ("shell", class_support, shell_escape, _("\
1859 Execute the rest of the line as a shell command.\n\
1860 With no arguments, run an inferior shell."));
1861 set_cmd_completer (c, filename_completer);
1863 c = add_com ("edit", class_files, edit_command, _("\
1864 Edit specified file or function.\n\
1865 With no argument, edits file containing most recent line listed.\n\
1866 Editing targets can be specified in these ways:\n\
1867 FILE:LINENUM, to edit at that line in that file,\n\
1868 FUNCTION, to edit at the beginning of that function,\n\
1869 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1870 *ADDRESS, to edit at the line containing that address.\n\
1871 Uses EDITOR environment variable contents as editor (or ex as default)."));
1873 c->completer = location_completer;
1875 add_com ("list", class_files, list_command, _("\
1876 List specified function or line.\n\
1877 With no argument, lists ten more lines after or around previous listing.\n\
1878 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1879 One argument specifies a line, and ten lines are listed around that line.\n\
1880 Two arguments with comma between specify starting and ending lines to list.\n\
1881 Lines can be specified in these ways:\n\
1882 LINENUM, to list around that line in current file,\n\
1883 FILE:LINENUM, to list around that line in that file,\n\
1884 FUNCTION, to list around beginning of that function,\n\
1885 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1886 *ADDRESS, to list around the line containing that address.\n\
1887 With two args if one is empty it stands for ten lines away from \
1891 add_com_alias ("l", "list", class_files, 1);
1893 add_com_alias ("v", "list", class_files, 1);
1896 add_com_alias ("file", "list", class_files, 1);
1898 c = add_com ("disassemble", class_vars, disassemble_command, _("\
1899 Disassemble a specified section of memory.\n\
1900 Default is the function surrounding the pc of the selected frame.\n\
1901 With a /m modifier, source lines are included (if available).\n\
1902 With a /r modifier, raw instructions in hex are included.\n\
1903 With a single argument, the function surrounding that address is dumped.\n\
1904 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1905 in the form of \"start,end\", or \"start,+length\"."));
1906 set_cmd_completer (c, location_completer);
1908 add_com_alias ("va", "disassemble", class_xdb, 0);
1910 add_com_alias ("!", "shell", class_support, 0);
1912 c = add_com ("make", class_support, make_command, _("\
1913 Run the ``make'' program using the rest of the line as arguments."));
1914 set_cmd_completer (c, filename_completer);
1915 add_cmd ("user", no_class, show_user, _("\
1916 Show definitions of non-python user defined commands.\n\
1917 Argument is the name of the user defined command.\n\
1918 With no argument, show definitions of all user defined commands."), &showlist);
1919 add_com ("apropos", class_support, apropos_command,
1920 _("Search for commands matching a REGEXP"));
1922 add_setshow_integer_cmd ("max-user-call-depth", no_class,
1923 &max_user_call_depth, _("\
1924 Set the max call depth for non-python user-defined commands."), _("\
1925 Show the max call depth for non-python user-defined commands."), NULL,
1927 show_max_user_call_depth,
1928 &setlist, &showlist);
1930 add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1931 Set tracing of GDB CLI commands."), _("\
1932 Show state of GDB CLI command tracing."), _("\
1933 When 'on', each command is displayed as it is executed."),
1936 &setlist, &showlist);
1938 c = add_com ("alias", class_support, alias_command, _("\
1939 Define a new command that is an alias of an existing command.\n\
1940 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1941 ALIAS is the name of the alias command to create.\n\
1942 COMMAND is the command being aliased to.\n\
1943 If \"-a\" is specified, the command is an abbreviation,\n\
1944 and will not appear in help command list output.\n\
1947 Make \"spe\" an alias of \"set print elements\":\n\
1948 alias spe = set print elements\n\
1949 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1950 alias -a set print elms = set print elements"));