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 *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.
531 STREAM is closed before we return. */
534 source_script_from_stream (FILE *stream, const char *file)
536 if (script_ext_mode != script_ext_off
537 && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py"))
539 volatile struct gdb_exception e;
541 TRY_CATCH (e, RETURN_MASK_ERROR)
543 /* The python support reopens the file using python functions,
544 so there's no point in passing STREAM here. */
545 source_python_script (file);
549 /* Should we fallback to ye olde GDB script mode? */
550 if (script_ext_mode == script_ext_soft
551 && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR)
553 fseek (stream, 0, SEEK_SET);
554 script_from_file (stream, (char*) file);
558 /* Nope, just punt. */
567 script_from_file (stream, file);
570 /* Worker to perform the "source" command.
572 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
573 search for it in the source search path. */
576 source_script_with_search (const char *file, int from_tty, int search_path)
580 struct cleanup *old_cleanups;
582 if (file == NULL || *file == 0)
583 error (_("source command requires file name of file to source."));
585 if (!find_and_open_script (file, search_path, &stream, &full_path))
587 /* The script wasn't found, or was otherwise inaccessible.
588 If the source command was invoked interactively, throw an
589 error. Otherwise (e.g. if it was invoked by a script),
590 silently ignore the error. */
592 perror_with_name (file);
597 old_cleanups = make_cleanup (xfree, full_path);
598 /* The python support reopens the file, so we need to pass full_path here
599 in case the file was found on the search path. It's useful to do this
600 anyway so that error messages show the actual file used. But only do
601 this if we (may have) used search_path, as printing the full path in
602 errors for the non-search case can be more noise than signal. */
603 source_script_from_stream (stream, search_path ? full_path : file);
604 do_cleanups (old_cleanups);
607 /* Wrapper around source_script_with_search to export it to main.c
608 for use in loading .gdbinit scripts. */
611 source_script (char *file, int from_tty)
613 source_script_with_search (file, from_tty, 0);
616 /* Return the source_verbose global variable to its previous state
617 on exit from the source command, by whatever means. */
619 source_verbose_cleanup (void *old_value)
621 source_verbose = *(int *)old_value;
626 source_command (char *args, int from_tty)
628 struct cleanup *old_cleanups;
630 int *old_source_verbose = xmalloc (sizeof(int));
633 *old_source_verbose = source_verbose;
634 old_cleanups = make_cleanup (source_verbose_cleanup,
637 /* -v causes the source command to run in verbose mode.
638 -s causes the file to be searched in the source search path,
639 even if the file name contains a '/'.
640 We still have to be able to handle filenames with spaces in a
641 backward compatible way, so buildargv is not appropriate. */
645 while (args[0] != '\0')
647 /* Make sure leading white space does not break the
649 while (isspace(args[0]))
655 if (args[1] == 'v' && isspace (args[2]))
659 /* Skip passed -v. */
662 else if (args[1] == 's' && isspace (args[2]))
666 /* Skip passed -s. */
673 while (isspace (args[0]))
678 source_script_with_search (file, from_tty, search_path);
680 do_cleanups (old_cleanups);
685 echo_command (char *text, int from_tty)
691 while ((c = *p++) != '\0')
695 /* \ at end of argument is used after spaces
696 so they won't be lost. */
700 c = parse_escape (get_current_arch (), &p);
702 printf_filtered ("%c", c);
705 printf_filtered ("%c", c);
708 /* Force this output to appear now. */
710 gdb_flush (gdb_stdout);
714 shell_escape (char *arg, int from_tty)
716 #if defined(CANT_FORK) || \
717 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
718 /* If ARG is NULL, they want an inferior shell, but `system' just
719 reports if the shell is available when passed a NULL arg. */
720 int rc = system (arg ? arg : "");
723 arg = "inferior shell";
727 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
728 safe_strerror (errno));
729 gdb_flush (gdb_stderr);
733 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
734 gdb_flush (gdb_stderr);
737 /* Make sure to return to the directory GDB thinks it is, in case
738 the shell command we just ran changed it. */
739 chdir (current_directory);
741 #else /* Can fork. */
744 if ((pid = vfork ()) == 0)
746 const char *p, *user_shell;
748 if ((user_shell = (char *) getenv ("SHELL")) == NULL)
749 user_shell = "/bin/sh";
751 /* Get the name of the shell for arg0. */
752 p = lbasename (user_shell);
755 execl (user_shell, p, (char *) 0);
757 execl (user_shell, p, "-c", arg, (char *) 0);
759 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
760 safe_strerror (errno));
761 gdb_flush (gdb_stderr);
766 waitpid (pid, &status, 0);
768 error (_("Fork failed"));
769 #endif /* Can fork. */
773 edit_command (char *arg, int from_tty)
775 struct symtabs_and_lines sals;
776 struct symtab_and_line sal;
782 /* Pull in the current default source line if necessary. */
785 set_default_source_symtab_and_line ();
786 sal = get_current_source_symtab_and_line ();
789 /* Bare "edit" edits file with present line. */
794 error (_("No default source file yet."));
795 sal.line += get_lines_to_list () / 2;
799 /* Now should only be one argument -- decode it in SAL. */
802 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
812 ambiguous_line_spec (&sals);
821 error (_("Junk at end of line specification."));
823 /* If line was specified by address, first print exactly which
824 line, and which file. In this case, sal.symtab == 0 means
825 address is outside of all known source files, not that user
826 failed to give a filename. */
829 struct gdbarch *gdbarch;
832 /* FIXME-32x64--assumes sal.pc fits in long. */
833 error (_("No source file for address %s."),
834 hex_string ((unsigned long) sal.pc));
836 gdbarch = get_objfile_arch (sal.symtab->objfile);
837 sym = find_pc_function (sal.pc);
839 printf_filtered ("%s is in %s (%s:%d).\n",
840 paddress (gdbarch, sal.pc),
841 SYMBOL_PRINT_NAME (sym),
842 sal.symtab->filename, sal.line);
844 printf_filtered ("%s is at %s:%d.\n",
845 paddress (gdbarch, sal.pc),
846 sal.symtab->filename, sal.line);
849 /* If what was given does not imply a symtab, it must be an
850 undebuggable symbol which means no source code. */
853 error (_("No line number known for %s."), arg);
856 if ((editor = (char *) getenv ("EDITOR")) == NULL)
859 /* If we don't already know the full absolute file name of the
860 source file, find it now. */
861 if (!sal.symtab->fullname)
863 fn = symtab_to_fullname (sal.symtab);
868 fn = sal.symtab->fullname;
870 /* Quote the file name, in case it has whitespace or other special
872 p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
873 shell_escape (p, from_tty);
878 list_command (char *arg, int from_tty)
880 struct symtabs_and_lines sals, sals_end;
881 struct symtab_and_line sal = { 0 };
882 struct symtab_and_line sal_end = { 0 };
883 struct symtab_and_line cursal = { 0 };
892 /* Pull in the current default source line if necessary. */
893 if (arg == 0 || arg[0] == '+' || arg[0] == '-')
895 set_default_source_symtab_and_line ();
896 cursal = get_current_source_symtab_and_line ();
899 /* "l" or "l +" lists next ten lines. */
901 if (arg == 0 || strcmp (arg, "+") == 0)
903 print_source_lines (cursal.symtab, cursal.line,
904 cursal.line + get_lines_to_list (), 0);
908 /* "l -" lists previous ten lines, the ones before the ten just
910 if (strcmp (arg, "-") == 0)
912 print_source_lines (cursal.symtab,
913 max (get_first_line_listed ()
914 - get_lines_to_list (), 1),
915 get_first_line_listed (), 0);
919 /* Now if there is only one argument, decode it in SAL
921 If there are two arguments, decode them in SAL and SAL_END
922 and clear NO_END; however, if one of the arguments is blank,
923 set DUMMY_BEG or DUMMY_END to record that fact. */
925 if (!have_full_symbols () && !have_partial_symbols ())
926 error (_("No symbol table is loaded. Use the \"file\" command."));
933 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
940 ambiguous_line_spec (&sals);
949 /* Record whether the BEG arg is all digits. */
951 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
952 linenum_beg = (p == arg1);
954 while (*arg1 == ' ' || *arg1 == '\t')
960 while (*arg1 == ' ' || *arg1 == '\t')
967 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
969 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE,
970 sal.symtab, sal.line);
972 if (sals_end.nelts == 0)
974 if (sals_end.nelts > 1)
976 ambiguous_line_spec (&sals_end);
977 xfree (sals_end.sals);
980 sal_end = sals_end.sals[0];
981 xfree (sals_end.sals);
986 error (_("Junk at end of line specification."));
988 if (!no_end && !dummy_beg && !dummy_end
989 && sal.symtab != sal_end.symtab)
990 error (_("Specified start and end are in different files."));
991 if (dummy_beg && dummy_end)
992 error (_("Two empty args do not say what lines to list."));
994 /* If line was specified by address,
995 first print exactly which line, and which file.
997 In this case, sal.symtab == 0 means address is outside of all
998 known source files, not that user failed to give a filename. */
1001 struct gdbarch *gdbarch;
1003 if (sal.symtab == 0)
1004 /* FIXME-32x64--assumes sal.pc fits in long. */
1005 error (_("No source file for address %s."),
1006 hex_string ((unsigned long) sal.pc));
1008 gdbarch = get_objfile_arch (sal.symtab->objfile);
1009 sym = find_pc_function (sal.pc);
1011 printf_filtered ("%s is in %s (%s:%d).\n",
1012 paddress (gdbarch, sal.pc),
1013 SYMBOL_PRINT_NAME (sym),
1014 sal.symtab->filename, sal.line);
1016 printf_filtered ("%s is at %s:%d.\n",
1017 paddress (gdbarch, sal.pc),
1018 sal.symtab->filename, sal.line);
1021 /* If line was not specified by just a line number, and it does not
1022 imply a symtab, it must be an undebuggable symbol which means no
1025 if (!linenum_beg && sal.symtab == 0)
1026 error (_("No line number known for %s."), arg);
1028 /* If this command is repeated with RET,
1029 turn it into the no-arg variant. */
1034 if (dummy_beg && sal_end.symtab == 0)
1035 error (_("No default source file yet. Do \"help list\"."));
1037 print_source_lines (sal_end.symtab,
1038 max (sal_end.line - (get_lines_to_list () - 1), 1),
1039 sal_end.line + 1, 0);
1040 else if (sal.symtab == 0)
1041 error (_("No default source file yet. Do \"help list\"."));
1044 int first_line = sal.line - get_lines_to_list () / 2;
1046 if (first_line < 1) first_line = 1;
1048 print_source_lines (sal.symtab,
1050 first_line + get_lines_to_list (),
1054 print_source_lines (sal.symtab, sal.line,
1056 ? sal.line + get_lines_to_list ()
1057 : sal_end.line + 1),
1061 /* Subroutine of disassemble_command to simplify it.
1062 Perform the disassembly.
1063 NAME is the name of the function if known, or NULL.
1064 [LOW,HIGH) are the range of addresses to disassemble.
1065 MIXED is non-zero to print source with the assembler. */
1068 print_disassembly (struct gdbarch *gdbarch, const char *name,
1069 CORE_ADDR low, CORE_ADDR high, int flags)
1072 if (!tui_is_window_visible (DISASSEM_WIN))
1075 printf_filtered ("Dump of assembler code ");
1077 printf_filtered ("for function %s:\n", name);
1079 printf_filtered ("from %s to %s:\n",
1080 paddress (gdbarch, low), paddress (gdbarch, high));
1082 /* Dump the specified range. */
1083 gdb_disassembly (gdbarch, current_uiout, 0, flags, -1, low, high);
1085 printf_filtered ("End of assembler dump.\n");
1086 gdb_flush (gdb_stdout);
1091 tui_show_assembly (gdbarch, low);
1096 /* Subroutine of disassemble_command to simplify it.
1097 Print a disassembly of the current function according to FLAGS. */
1100 disassemble_current_function (int flags)
1102 struct frame_info *frame;
1103 struct gdbarch *gdbarch;
1104 CORE_ADDR low, high, pc;
1107 frame = get_selected_frame (_("No frame selected."));
1108 gdbarch = get_frame_arch (frame);
1109 pc = get_frame_pc (frame);
1110 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1111 error (_("No function contains program counter for selected frame."));
1113 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1116 /* FIXME: cagney/2004-02-07: This should be an observer. */
1117 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1119 low += gdbarch_deprecated_function_start_offset (gdbarch);
1121 print_disassembly (gdbarch, name, low, high, flags);
1124 /* Dump a specified section of assembly code.
1128 - dump the assembly code for the function of the current pc
1129 disassemble [/mr] addr
1130 - dump the assembly code for the function at ADDR
1131 disassemble [/mr] low,high
1132 disassemble [/mr] low,+length
1133 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1135 A /m modifier will include source code with the assembly.
1136 A /r modifier will include raw instructions in hex with the assembly. */
1139 disassemble_command (char *arg, int from_tty)
1141 struct gdbarch *gdbarch = get_current_arch ();
1142 CORE_ADDR low, high;
1150 if (arg && *arg == '/')
1155 error (_("Missing modifier."));
1157 while (*arg && ! isspace (*arg))
1162 flags |= DISASSEMBLY_SOURCE;
1165 flags |= DISASSEMBLY_RAW_INSN;
1168 error (_("Invalid disassembly modifier."));
1172 while (isspace (*arg))
1176 if (! arg || ! *arg)
1178 flags |= DISASSEMBLY_OMIT_FNAME;
1179 disassemble_current_function (flags);
1183 pc = value_as_address (parse_to_comma_and_eval (&arg));
1189 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1190 error (_("No function contains specified address."));
1192 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1195 /* FIXME: cagney/2004-02-07: This should be an observer. */
1196 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1198 low += gdbarch_deprecated_function_start_offset (gdbarch);
1199 flags |= DISASSEMBLY_OMIT_FNAME;
1203 /* Two arguments. */
1206 while (isspace (*arg))
1213 high = parse_and_eval_address (arg);
1218 print_disassembly (gdbarch, name, low, high, flags);
1222 make_command (char *arg, int from_tty)
1230 p = xmalloc (sizeof ("make ") + strlen (arg));
1231 strcpy (p, "make ");
1232 strcpy (p + sizeof ("make ") - 1, arg);
1235 shell_escape (p, from_tty);
1239 show_user (char *args, int from_tty)
1241 struct cmd_list_element *c;
1242 extern struct cmd_list_element *cmdlist;
1246 char *comname = args;
1248 c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1249 if (c->class != class_user)
1250 error (_("Not a user command."));
1251 show_user_1 (c, "", args, gdb_stdout);
1255 for (c = cmdlist; c; c = c->next)
1257 if (c->class == class_user || c->prefixlist != NULL)
1258 show_user_1 (c, "", c->name, gdb_stdout);
1263 /* Search through names of commands and documentations for a certain
1264 regular expression. */
1267 apropos_command (char *searchstr, int from_tty)
1272 if (searchstr == NULL)
1273 error (_("REGEXP string is empty"));
1275 code = regcomp (&pattern, searchstr, REG_ICASE);
1278 struct cleanup *cleanups;
1280 cleanups = make_regfree_cleanup (&pattern);
1281 apropos_cmd (gdb_stdout, cmdlist, &pattern, "");
1282 do_cleanups (cleanups);
1286 char *err = get_regcomp_error (code, &pattern);
1288 make_cleanup (xfree, err);
1289 error (_("Error in regular expression: %s"), err);
1293 /* Subroutine of alias_command to simplify it.
1294 Return the first N elements of ARGV flattened back to a string
1295 with a space separating each element.
1296 ARGV may not be NULL.
1297 This does not take care of quoting elements in case they contain spaces
1301 argv_to_dyn_string (char **argv, int n)
1304 dyn_string_t result = dyn_string_new (10);
1306 gdb_assert (argv != NULL);
1307 gdb_assert (n >= 0 && n <= countargv (argv));
1309 for (i = 0; i < n; ++i)
1312 dyn_string_append_char (result, ' ');
1313 dyn_string_append_cstr (result, argv[i]);
1319 /* Subroutine of alias_command to simplify it.
1320 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1323 valid_command_p (char *command)
1325 struct cmd_list_element *c;
1327 c = lookup_cmd_1 (& command, cmdlist, NULL, 1);
1329 if (c == NULL || c == (struct cmd_list_element *) -1)
1332 /* This is the slightly tricky part.
1333 lookup_cmd_1 will return a pointer to the last part of COMMAND
1334 to match, leaving COMMAND pointing at the remainder. */
1335 while (*command == ' ' || *command == '\t')
1337 return *command == '\0';
1340 /* Make an alias of an existing command. */
1343 alias_command (char *args, int from_tty)
1345 int i, alias_argc, command_argc;
1346 int abbrev_flag = 0;
1347 char *args2, *equals, *alias, *command;
1348 char **alias_argv, **command_argv;
1349 dyn_string_t alias_dyn_string, command_dyn_string;
1350 struct cmd_list_element *c;
1351 static const char usage[] = N_("Usage: alias [-a] [--] ALIAS = COMMAND");
1353 if (args == NULL || strchr (args, '=') == NULL)
1356 args2 = xstrdup (args);
1357 make_cleanup (xfree, args2);
1358 equals = strchr (args2, '=');
1360 alias_argv = gdb_buildargv (args2);
1361 make_cleanup_freeargv (alias_argv);
1362 command_argv = gdb_buildargv (equals + 1);
1363 make_cleanup_freeargv (command_argv);
1365 for (i = 0; alias_argv[i] != NULL; )
1367 if (strcmp (alias_argv[i], "-a") == 0)
1372 else if (strcmp (alias_argv[i], "--") == 0)
1381 if (alias_argv[0] == NULL || command_argv[0] == NULL
1382 || *alias_argv[0] == '\0' || *command_argv[0] == '\0')
1385 for (i = 0; alias_argv[i] != NULL; ++i)
1387 if (! valid_user_defined_cmd_name_p (alias_argv[i]))
1390 error (_("Invalid command name: %s"), alias_argv[i]);
1392 error (_("Invalid command element name: %s"), alias_argv[i]);
1396 alias_argc = countargv (alias_argv);
1397 command_argc = countargv (command_argv);
1399 /* COMMAND must exist.
1400 Reconstruct the command to remove any extraneous spaces,
1401 for better error messages. */
1402 command_dyn_string = argv_to_dyn_string (command_argv, command_argc);
1403 make_cleanup_dyn_string_delete (command_dyn_string);
1404 command = dyn_string_buf (command_dyn_string);
1405 if (! valid_command_p (command))
1406 error (_("Invalid command to alias to: %s"), command);
1408 /* ALIAS must not exist. */
1409 alias_dyn_string = argv_to_dyn_string (alias_argv, alias_argc);
1410 make_cleanup_dyn_string_delete (alias_dyn_string);
1411 alias = dyn_string_buf (alias_dyn_string);
1412 if (valid_command_p (alias))
1413 error (_("Alias already exists: %s"), alias);
1415 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1416 Example: alias spe = set print elements
1418 Otherwise ALIAS and COMMAND must have the same number of words,
1419 and every word except the last must match; and the last word of
1420 ALIAS is made an alias of the last word of COMMAND.
1421 Example: alias set print elms = set pr elem
1422 Note that unambiguous abbreviations are allowed. */
1424 if (alias_argc == 1)
1426 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1427 add_com_alias (xstrdup (alias_argv[0]), command, class_alias,
1433 dyn_string_t alias_prefix_dyn_string, command_prefix_dyn_string;
1434 char *alias_prefix, *command_prefix;
1435 struct cmd_list_element *c_alias, *c_command;
1437 if (alias_argc != command_argc)
1438 error (_("Mismatched command length between ALIAS and COMMAND."));
1440 /* Create copies of ALIAS and COMMAND without the last word,
1441 and use that to verify the leading elements match. */
1442 alias_prefix_dyn_string =
1443 argv_to_dyn_string (alias_argv, alias_argc - 1);
1444 make_cleanup_dyn_string_delete (alias_prefix_dyn_string);
1445 command_prefix_dyn_string =
1446 argv_to_dyn_string (alias_argv, command_argc - 1);
1447 make_cleanup_dyn_string_delete (command_prefix_dyn_string);
1448 alias_prefix = dyn_string_buf (alias_prefix_dyn_string);
1449 command_prefix = dyn_string_buf (command_prefix_dyn_string);
1451 c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1);
1452 /* We've already tried to look up COMMAND. */
1453 gdb_assert (c_command != NULL
1454 && c_command != (struct cmd_list_element *) -1);
1455 gdb_assert (c_command->prefixlist != NULL);
1456 c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1);
1457 if (c_alias != c_command)
1458 error (_("ALIAS and COMMAND prefixes do not match."));
1460 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1461 add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]),
1462 command_argv[command_argc - 1],
1463 class_alias, abbrev_flag, c_command->prefixlist);
1467 /* Print a list of files and line numbers which a user may choose from
1468 in order to list a function which was specified ambiguously (as
1469 with `list classname::overloadedfuncname', for example). The
1470 vector in SALS provides the filenames and line numbers. */
1473 ambiguous_line_spec (struct symtabs_and_lines *sals)
1477 for (i = 0; i < sals->nelts; ++i)
1478 printf_filtered (_("file: \"%s\", line number: %d\n"),
1479 sals->sals[i].symtab->filename, sals->sals[i].line);
1482 /* Sort function for filter_sals. */
1485 compare_symtabs (const void *a, const void *b)
1487 const struct symtab_and_line *sala = a;
1488 const struct symtab_and_line *salb = b;
1491 if (!sala->symtab->dirname)
1493 if (salb->symtab->dirname)
1496 else if (!salb->symtab->dirname)
1498 if (sala->symtab->dirname)
1503 r = filename_cmp (sala->symtab->dirname, salb->symtab->dirname);
1508 r = filename_cmp (sala->symtab->filename, salb->symtab->filename);
1512 if (sala->line < salb->line)
1514 return sala->line == salb->line ? 0 : 1;
1517 /* Remove any SALs that do not match the current program space, or
1518 which appear to be "file:line" duplicates. */
1521 filter_sals (struct symtabs_and_lines *sals)
1526 for (i = 0; i < sals->nelts; ++i)
1528 if (sals->sals[i].pspace == current_program_space
1529 && sals->sals[i].symtab != NULL)
1531 sals->sals[out] = sals->sals[i];
1537 qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line),
1542 for (i = 1; i < sals->nelts; ++i)
1544 if (compare_symtabs (&sals->sals[prev], &sals->sals[i]))
1546 /* Symtabs differ. */
1547 sals->sals[out] = sals->sals[i];
1554 if (sals->nelts == 0)
1562 set_debug (char *arg, int from_tty)
1564 printf_unfiltered (_("\"set debug\" must be followed by "
1565 "the name of a debug subcommand.\n"));
1566 help_list (setdebuglist, "set debug ", -1, gdb_stdout);
1570 show_debug (char *args, int from_tty)
1572 cmd_show_list (showdebuglist, from_tty, "");
1576 init_cmd_lists (void)
1578 max_user_call_depth = 1024;
1588 enablebreaklist = NULL;
1593 showhistlist = NULL;
1594 unsethistlist = NULL;
1595 maintenancelist = NULL;
1596 maintenanceinfolist = NULL;
1597 maintenanceprintlist = NULL;
1598 setprintlist = NULL;
1599 showprintlist = NULL;
1600 setchecklist = NULL;
1601 showchecklist = NULL;
1606 show_info_verbose (struct ui_file *file, int from_tty,
1607 struct cmd_list_element *c,
1611 fprintf_filtered (file,
1612 _("Verbose printing of informational messages is %s.\n"),
1615 fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1619 show_history_expansion_p (struct ui_file *file, int from_tty,
1620 struct cmd_list_element *c, const char *value)
1622 fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1627 show_baud_rate (struct ui_file *file, int from_tty,
1628 struct cmd_list_element *c, const char *value)
1630 fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"),
1635 show_remote_debug (struct ui_file *file, int from_tty,
1636 struct cmd_list_element *c, const char *value)
1638 fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1643 show_remote_timeout (struct ui_file *file, int from_tty,
1644 struct cmd_list_element *c, const char *value)
1646 fprintf_filtered (file,
1647 _("Timeout limit to wait for target to respond is %s.\n"),
1652 show_max_user_call_depth (struct ui_file *file, int from_tty,
1653 struct cmd_list_element *c, const char *value)
1655 fprintf_filtered (file,
1656 _("The max call depth for user-defined commands is %s.\n"),
1662 init_cli_cmds (void)
1664 struct cmd_list_element *c;
1665 char *source_help_text;
1667 /* Define the classes of commands.
1668 They will appear in the help list in alphabetical order. */
1670 add_cmd ("internals", class_maintenance, NULL, _("\
1671 Maintenance commands.\n\
1672 Some gdb commands are provided just for use by gdb maintainers.\n\
1673 These commands are subject to frequent change, and may not be as\n\
1674 well documented as user commands."),
1676 add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist);
1677 add_cmd ("aliases", class_alias, NULL,
1678 _("Aliases of other commands."), &cmdlist);
1679 add_cmd ("user-defined", class_user, NULL, _("\
1680 User-defined commands.\n\
1681 The commands in this class are those defined by the user.\n\
1682 Use the \"define\" command to define a command."), &cmdlist);
1683 add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
1685 add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
1686 add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
1688 add_cmd ("breakpoints", class_breakpoint, NULL,
1689 _("Making program stop at certain points."), &cmdlist);
1690 add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
1691 add_cmd ("stack", class_stack, NULL, _("\
1692 Examining the stack.\n\
1693 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1694 counting from zero for the innermost (currently executing) frame.\n\n\
1695 At any time gdb identifies one frame as the \"selected\" frame.\n\
1696 Variable lookups are done with respect to the selected frame.\n\
1697 When the program being debugged stops, gdb selects the innermost frame.\n\
1698 The commands below can be used to select other frames by number or address."),
1700 add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
1702 /* Define general commands. */
1704 add_com ("pwd", class_files, pwd_command, _("\
1705 Print working directory. This is used for your program as well."));
1707 c = add_cmd ("cd", class_files, cd_command, _("\
1708 Set working directory to DIR for debugger and program being debugged.\n\
1709 The change does not take effect for the program being debugged\n\
1710 until the next time it is started."), &cmdlist);
1711 set_cmd_completer (c, filename_completer);
1713 add_com ("echo", class_support, echo_command, _("\
1714 Print a constant string. Give string as argument.\n\
1715 C escape sequences may be used in the argument.\n\
1716 No newline is added at the end of the argument;\n\
1717 use \"\\n\" if you want a newline to be printed.\n\
1718 Since leading and trailing whitespace are ignored in command arguments,\n\
1719 if you want to print some you must use \"\\\" before leading whitespace\n\
1720 to be printed or after trailing whitespace."));
1721 add_com ("document", class_support, document_command, _("\
1722 Document a user-defined command.\n\
1723 Give command name as argument. Give documentation on following lines.\n\
1724 End with a line of just \"end\"."));
1725 add_com ("define", class_support, define_command, _("\
1726 Define a new command name. Command name is argument.\n\
1727 Definition appears on following lines, one command per line.\n\
1728 End with a line of just \"end\".\n\
1729 Use the \"document\" command to give documentation for the new command.\n\
1730 Commands defined in this way may have up to ten arguments."));
1732 source_help_text = xstrprintf (_("\
1733 Read commands from a file named FILE.\n\
1735 Usage: source [-s] [-v] FILE\n\
1736 -s: search for the script in the source search path,\n\
1737 even if FILE contains directories.\n\
1738 -v: each command in FILE is echoed as it is executed.\n\
1740 Note that the file \"%s\" is read automatically in this way\n\
1741 when GDB is started."), gdbinit);
1742 c = add_cmd ("source", class_support, source_command,
1743 source_help_text, &cmdlist);
1744 set_cmd_completer (c, filename_completer);
1746 add_setshow_enum_cmd ("script-extension", class_support,
1747 script_ext_enums, &script_ext_mode, _("\
1748 Set mode for script filename extension recognition."), _("\
1749 Show mode for script filename extension recognition."), _("\
1750 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1751 soft == evaluate script according to filename extension, fallback to GDB script"
1753 strict == evaluate script according to filename extension, error if not supported"
1756 show_script_ext_mode,
1757 &setlist, &showlist);
1759 add_com ("quit", class_support, quit_command, _("Exit gdb."));
1760 c = add_com ("help", class_support, help_command,
1761 _("Print list of commands."));
1762 set_cmd_completer (c, command_completer);
1763 add_com_alias ("q", "quit", class_support, 1);
1764 add_com_alias ("h", "help", class_support, 1);
1766 add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1767 Set verbosity."), _("\
1768 Show verbosity."), NULL,
1771 &setlist, &showlist);
1773 add_prefix_cmd ("history", class_support, set_history,
1774 _("Generic command for setting command history parameters."),
1775 &sethistlist, "set history ", 0, &setlist);
1776 add_prefix_cmd ("history", class_support, show_history,
1777 _("Generic command for showing command history parameters."),
1778 &showhistlist, "show history ", 0, &showlist);
1780 add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1781 Set history expansion on command input."), _("\
1782 Show history expansion on command input."), _("\
1783 Without an argument, history expansion is enabled."),
1785 show_history_expansion_p,
1786 &sethistlist, &showhistlist);
1788 add_prefix_cmd ("info", class_info, info_command, _("\
1789 Generic command for showing things about the program being debugged."),
1790 &infolist, "info ", 0, &cmdlist);
1791 add_com_alias ("i", "info", class_info, 1);
1792 add_com_alias ("inf", "info", class_info, 1);
1794 add_com ("complete", class_obscure, complete_command,
1795 _("List the completions for the rest of the line as a command."));
1797 add_prefix_cmd ("show", class_info, show_command, _("\
1798 Generic command for showing things about the debugger."),
1799 &showlist, "show ", 0, &cmdlist);
1800 /* Another way to get at the same thing. */
1801 add_info ("set", show_command, _("Show all GDB settings."));
1803 add_cmd ("commands", no_set_class, show_commands, _("\
1804 Show the history of commands you typed.\n\
1805 You can supply a command number to start with, or a `+' to start after\n\
1806 the previous command number shown."),
1809 add_cmd ("version", no_set_class, show_version,
1810 _("Show what version of GDB this is."), &showlist);
1812 add_com ("while", class_support, while_command, _("\
1813 Execute nested commands WHILE the conditional expression is non zero.\n\
1814 The conditional expression must follow the word `while' and must in turn be\n\
1815 followed by a new line. The nested commands must be entered one per line,\n\
1816 and should be terminated by the word `end'."));
1818 add_com ("if", class_support, if_command, _("\
1819 Execute nested commands once IF the conditional expression is non zero.\n\
1820 The conditional expression must follow the word `if' and must in turn be\n\
1821 followed by a new line. The nested commands must be entered one per line,\n\
1822 and should be terminated by the word 'else' or `end'. If an else clause\n\
1823 is used, the same rules apply to its nested commands as to the first ones."));
1825 /* If target is open when baud changes, it doesn't take effect until
1826 the next open (I think, not sure). */
1827 add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\
1828 Set baud rate for remote serial I/O."), _("\
1829 Show baud rate for remote serial I/O."), _("\
1830 This value is used to set the speed of the serial port when debugging\n\
1831 using remote targets."),
1834 &setlist, &showlist);
1836 add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1837 Set debugging of remote protocol."), _("\
1838 Show debugging of remote protocol."), _("\
1839 When enabled, each packet sent or received with the remote target\n\
1843 &setdebuglist, &showdebuglist);
1845 add_setshow_integer_cmd ("remotetimeout", no_class, &remote_timeout, _("\
1846 Set timeout limit to wait for target to respond."), _("\
1847 Show timeout limit to wait for target to respond."), _("\
1848 This value is used to set the time limit for gdb to wait for a response\n\
1851 show_remote_timeout,
1852 &setlist, &showlist);
1854 add_prefix_cmd ("debug", no_class, set_debug,
1855 _("Generic command for setting gdb debugging flags"),
1856 &setdebuglist, "set debug ", 0, &setlist);
1858 add_prefix_cmd ("debug", no_class, show_debug,
1859 _("Generic command for showing gdb debugging flags"),
1860 &showdebuglist, "show debug ", 0, &showlist);
1862 c = add_com ("shell", class_support, shell_escape, _("\
1863 Execute the rest of the line as a shell command.\n\
1864 With no arguments, run an inferior shell."));
1865 set_cmd_completer (c, filename_completer);
1867 c = add_com ("edit", class_files, edit_command, _("\
1868 Edit specified file or function.\n\
1869 With no argument, edits file containing most recent line listed.\n\
1870 Editing targets can be specified in these ways:\n\
1871 FILE:LINENUM, to edit at that line in that file,\n\
1872 FUNCTION, to edit at the beginning of that function,\n\
1873 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1874 *ADDRESS, to edit at the line containing that address.\n\
1875 Uses EDITOR environment variable contents as editor (or ex as default)."));
1877 c->completer = location_completer;
1879 add_com ("list", class_files, list_command, _("\
1880 List specified function or line.\n\
1881 With no argument, lists ten more lines after or around previous listing.\n\
1882 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1883 One argument specifies a line, and ten lines are listed around that line.\n\
1884 Two arguments with comma between specify starting and ending lines to list.\n\
1885 Lines can be specified in these ways:\n\
1886 LINENUM, to list around that line in current file,\n\
1887 FILE:LINENUM, to list around that line in that file,\n\
1888 FUNCTION, to list around beginning of that function,\n\
1889 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1890 *ADDRESS, to list around the line containing that address.\n\
1891 With two args if one is empty it stands for ten lines away from \
1895 add_com_alias ("l", "list", class_files, 1);
1897 add_com_alias ("v", "list", class_files, 1);
1900 add_com_alias ("file", "list", class_files, 1);
1902 c = add_com ("disassemble", class_vars, disassemble_command, _("\
1903 Disassemble a specified section of memory.\n\
1904 Default is the function surrounding the pc of the selected frame.\n\
1905 With a /m modifier, source lines are included (if available).\n\
1906 With a /r modifier, raw instructions in hex are included.\n\
1907 With a single argument, the function surrounding that address is dumped.\n\
1908 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1909 in the form of \"start,end\", or \"start,+length\"."));
1910 set_cmd_completer (c, location_completer);
1912 add_com_alias ("va", "disassemble", class_xdb, 0);
1914 add_com_alias ("!", "shell", class_support, 0);
1916 c = add_com ("make", class_support, make_command, _("\
1917 Run the ``make'' program using the rest of the line as arguments."));
1918 set_cmd_completer (c, filename_completer);
1919 add_cmd ("user", no_class, show_user, _("\
1920 Show definitions of user defined commands.\n\
1921 Argument is the name of the user defined command.\n\
1922 With no argument, show definitions of all user defined commands."), &showlist);
1923 add_com ("apropos", class_support, apropos_command,
1924 _("Search for commands matching a REGEXP"));
1926 add_setshow_integer_cmd ("max-user-call-depth", no_class,
1927 &max_user_call_depth, _("\
1928 Set the max call depth for user-defined commands."), _("\
1929 Show the max call depth for user-defined commands."), NULL,
1931 show_max_user_call_depth,
1932 &setlist, &showlist);
1934 add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1935 Set tracing of GDB CLI commands."), _("\
1936 Show state of GDB CLI command tracing."), _("\
1937 When 'on', each command is displayed as it is executed."),
1940 &setlist, &showlist);
1942 c = add_com ("alias", class_support, alias_command, _("\
1943 Define a new command that is an alias of an existing command.\n\
1944 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1945 ALIAS is the name of the alias command to create.\n\
1946 COMMAND is the command being aliased to.\n\
1947 If \"-a\" is specified, the command is an abbreviation,\n\
1948 and will not appear in help command list output.\n\
1951 Make \"spe\" an alias of \"set print elements\":\n\
1952 alias spe = set print elements\n\
1953 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1954 alias -a set print elms = set print elements"));