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 *point, *arg_prefix;
258 VEC (char_ptr) *completions;
264 argpoint = strlen (arg);
266 /* complete_line assumes that its first argument is somewhere
267 within, and except for filenames at the beginning of, the word to
268 be completed. The following crude imitation of readline's
269 word-breaking tries to accomodate this. */
270 point = arg + argpoint;
273 if (strchr (rl_completer_word_break_characters, point[-1]) != 0)
278 arg_prefix = alloca (point - arg + 1);
279 memcpy (arg_prefix, arg, point - arg);
280 arg_prefix[point - arg] = 0;
282 completions = complete_line (point, arg, argpoint);
286 int ix, size = VEC_length (char_ptr, completions);
287 char *item, *prev = NULL;
289 qsort (VEC_address (char_ptr, completions), size,
290 sizeof (char *), compare_strings);
292 /* We do extra processing here since we only want to print each
294 for (ix = 0; VEC_iterate (char_ptr, completions, ix, item); ++ix)
298 if (prev == NULL || strcmp (item, prev) != 0)
300 printf_unfiltered ("%s%s\n", arg_prefix, item);
309 VEC_free (char_ptr, completions);
314 is_complete_command (struct cmd_list_element *c)
316 return cmd_cfunc_eq (c, complete_command);
320 show_version (char *args, int from_tty)
323 print_gdb_version (gdb_stdout);
324 printf_filtered ("\n");
328 /* Handle the quit command. */
331 quit_command (char *args, int from_tty)
333 if (!quit_confirm ())
334 error (_("Not confirmed."));
336 disconnect_tracing (from_tty);
338 quit_force (args, from_tty);
342 pwd_command (char *args, int from_tty)
345 error (_("The \"pwd\" command does not take an argument: %s"), args);
346 if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
347 error (_("Error finding name of working directory: %s"),
348 safe_strerror (errno));
350 if (strcmp (gdb_dirbuf, current_directory) != 0)
351 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
352 current_directory, gdb_dirbuf);
354 printf_unfiltered (_("Working directory %s.\n"), current_directory);
358 cd_command (char *dir, int from_tty)
361 /* Found something other than leading repetitions of "/..". */
365 /* If the new directory is absolute, repeat is a no-op; if relative,
366 repeat might be useful but is more likely to be a mistake. */
370 error_no_arg (_("new working directory"));
372 dir = tilde_expand (dir);
373 make_cleanup (xfree, dir);
376 perror_with_name (dir);
378 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
379 /* There's too much mess with DOSish names like "d:", "d:.",
380 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
381 simply get the canonicalized name of the current directory. */
382 dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
386 if (IS_DIR_SEPARATOR (dir[len - 1]))
388 /* Remove the trailing slash unless this is a root directory
389 (including a drive letter on non-Unix systems). */
390 if (!(len == 1) /* "/" */
391 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
392 && !(len == 3 && dir[1] == ':') /* "d:/" */
398 dir = savestring (dir, len);
399 if (IS_ABSOLUTE_PATH (dir))
400 current_directory = dir;
403 if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
404 current_directory = concat (current_directory, dir, (char *)NULL);
406 current_directory = concat (current_directory, SLASH_STRING,
411 /* Now simplify any occurrences of `.' and `..' in the pathname. */
414 for (p = current_directory; *p;)
416 if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
417 && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
418 memmove (p, p + 2, strlen (p + 2) + 1);
419 else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
420 && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
424 /* Search backwards for the directory just before the "/.."
425 and obliterate it and the "/..". */
428 while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
431 if (q == current_directory)
432 /* current_directory is
433 a relative pathname ("can't happen"--leave it alone). */
437 memmove (q - 1, p + 3, strlen (p + 3) + 1);
442 /* We are dealing with leading repetitions of "/..", for
443 example "/../..", which is the Mach super-root. */
453 forget_cached_source_info ();
456 pwd_command ((char *) 0, 1);
459 /* Show the current value of the 'script-extension' option. */
462 show_script_ext_mode (struct ui_file *file, int from_tty,
463 struct cmd_list_element *c, const char *value)
465 fprintf_filtered (file,
466 _("Script filename extension recognition is \"%s\".\n"),
470 /* Try to open SCRIPT_FILE.
471 If successful, the full path name is stored in *FULL_PATHP,
472 the stream is stored in *STREAMP, and return 1.
473 The caller is responsible for freeing *FULL_PATHP.
474 If not successful, return 0; errno is set for the last file
477 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
478 search for it in the source search path.
480 NOTE: This calls openp which uses xfullpath to compute the full path
481 instead of gdb_realpath. Symbolic links are not resolved. */
484 find_and_open_script (const char *script_file, int search_path,
485 FILE **streamp, char **full_pathp)
489 struct cleanup *old_cleanups;
490 int search_flags = OPF_TRY_CWD_FIRST;
492 file = tilde_expand (script_file);
493 old_cleanups = make_cleanup (xfree, file);
496 search_flags |= OPF_SEARCH_IN_PATH;
498 /* Search for and open 'file' on the search path used for source
499 files. Put the full location in *FULL_PATHP. */
500 fd = openp (source_path, search_flags,
501 file, O_RDONLY, full_pathp);
505 int save_errno = errno;
506 do_cleanups (old_cleanups);
511 do_cleanups (old_cleanups);
513 *streamp = fdopen (fd, FOPEN_RT);
514 if (*streamp == NULL)
516 int save_errno = errno;
528 /* Load script FILE, which has already been opened as STREAM. */
531 source_script_from_stream (FILE *stream, const char *file)
533 if (script_ext_mode != script_ext_off
534 && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py"))
536 volatile struct gdb_exception e;
538 TRY_CATCH (e, RETURN_MASK_ERROR)
540 source_python_script (stream, file);
544 /* Should we fallback to ye olde GDB script mode? */
545 if (script_ext_mode == script_ext_soft
546 && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR)
548 fseek (stream, 0, SEEK_SET);
549 script_from_file (stream, (char*) file);
553 /* Nope, just punt. */
559 script_from_file (stream, file);
562 /* Worker to perform the "source" command.
564 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
565 search for it in the source search path. */
568 source_script_with_search (const char *file, int from_tty, int search_path)
572 struct cleanup *old_cleanups;
574 if (file == NULL || *file == 0)
575 error (_("source command requires file name of file to source."));
577 if (!find_and_open_script (file, search_path, &stream, &full_path))
579 /* The script wasn't found, or was otherwise inaccessible.
580 If the source command was invoked interactively, throw an
581 error. Otherwise (e.g. if it was invoked by a script),
582 silently ignore the error. */
584 perror_with_name (file);
589 old_cleanups = make_cleanup (xfree, full_path);
590 make_cleanup_fclose (stream);
591 /* The python support reopens the file, so we need to pass full_path here
592 in case the file was found on the search path. It's useful to do this
593 anyway so that error messages show the actual file used. But only do
594 this if we (may have) used search_path, as printing the full path in
595 errors for the non-search case can be more noise than signal. */
596 source_script_from_stream (stream, search_path ? full_path : file);
597 do_cleanups (old_cleanups);
600 /* Wrapper around source_script_with_search to export it to main.c
601 for use in loading .gdbinit scripts. */
604 source_script (char *file, int from_tty)
606 source_script_with_search (file, from_tty, 0);
609 /* Return the source_verbose global variable to its previous state
610 on exit from the source command, by whatever means. */
612 source_verbose_cleanup (void *old_value)
614 source_verbose = *(int *)old_value;
619 source_command (char *args, int from_tty)
621 struct cleanup *old_cleanups;
623 int *old_source_verbose = xmalloc (sizeof(int));
626 *old_source_verbose = source_verbose;
627 old_cleanups = make_cleanup (source_verbose_cleanup,
630 /* -v causes the source command to run in verbose mode.
631 -s causes the file to be searched in the source search path,
632 even if the file name contains a '/'.
633 We still have to be able to handle filenames with spaces in a
634 backward compatible way, so buildargv is not appropriate. */
638 while (args[0] != '\0')
640 /* Make sure leading white space does not break the
642 while (isspace(args[0]))
648 if (args[1] == 'v' && isspace (args[2]))
652 /* Skip passed -v. */
655 else if (args[1] == 's' && isspace (args[2]))
659 /* Skip passed -s. */
666 while (isspace (args[0]))
671 source_script_with_search (file, from_tty, search_path);
673 do_cleanups (old_cleanups);
678 echo_command (char *text, int from_tty)
684 while ((c = *p++) != '\0')
688 /* \ at end of argument is used after spaces
689 so they won't be lost. */
693 c = parse_escape (get_current_arch (), &p);
695 printf_filtered ("%c", c);
698 printf_filtered ("%c", c);
701 /* Force this output to appear now. */
703 gdb_flush (gdb_stdout);
707 shell_escape (char *arg, int from_tty)
709 #if defined(CANT_FORK) || \
710 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
711 /* If ARG is NULL, they want an inferior shell, but `system' just
712 reports if the shell is available when passed a NULL arg. */
713 int rc = system (arg ? arg : "");
716 arg = "inferior shell";
720 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
721 safe_strerror (errno));
722 gdb_flush (gdb_stderr);
726 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
727 gdb_flush (gdb_stderr);
730 /* Make sure to return to the directory GDB thinks it is, in case
731 the shell command we just ran changed it. */
732 chdir (current_directory);
734 #else /* Can fork. */
737 if ((pid = vfork ()) == 0)
739 const char *p, *user_shell;
741 if ((user_shell = (char *) getenv ("SHELL")) == NULL)
742 user_shell = "/bin/sh";
744 /* Get the name of the shell for arg0. */
745 p = lbasename (user_shell);
748 execl (user_shell, p, (char *) 0);
750 execl (user_shell, p, "-c", arg, (char *) 0);
752 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
753 safe_strerror (errno));
754 gdb_flush (gdb_stderr);
759 waitpid (pid, &status, 0);
761 error (_("Fork failed"));
762 #endif /* Can fork. */
766 edit_command (char *arg, int from_tty)
768 struct symtabs_and_lines sals;
769 struct symtab_and_line sal;
775 /* Pull in the current default source line if necessary. */
778 set_default_source_symtab_and_line ();
779 sal = get_current_source_symtab_and_line ();
782 /* Bare "edit" edits file with present line. */
787 error (_("No default source file yet."));
788 sal.line += get_lines_to_list () / 2;
792 /* Now should only be one argument -- decode it in SAL. */
795 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
805 ambiguous_line_spec (&sals);
814 error (_("Junk at end of line specification."));
816 /* If line was specified by address, first print exactly which
817 line, and which file. In this case, sal.symtab == 0 means
818 address is outside of all known source files, not that user
819 failed to give a filename. */
822 struct gdbarch *gdbarch;
825 /* FIXME-32x64--assumes sal.pc fits in long. */
826 error (_("No source file for address %s."),
827 hex_string ((unsigned long) sal.pc));
829 gdbarch = get_objfile_arch (sal.symtab->objfile);
830 sym = find_pc_function (sal.pc);
832 printf_filtered ("%s is in %s (%s:%d).\n",
833 paddress (gdbarch, sal.pc),
834 SYMBOL_PRINT_NAME (sym),
835 sal.symtab->filename, sal.line);
837 printf_filtered ("%s is at %s:%d.\n",
838 paddress (gdbarch, sal.pc),
839 sal.symtab->filename, sal.line);
842 /* If what was given does not imply a symtab, it must be an
843 undebuggable symbol which means no source code. */
846 error (_("No line number known for %s."), arg);
849 if ((editor = (char *) getenv ("EDITOR")) == NULL)
852 /* If we don't already know the full absolute file name of the
853 source file, find it now. */
854 if (!sal.symtab->fullname)
856 fn = symtab_to_fullname (sal.symtab);
861 fn = sal.symtab->fullname;
863 /* Quote the file name, in case it has whitespace or other special
865 p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
866 shell_escape (p, from_tty);
871 list_command (char *arg, int from_tty)
873 struct symtabs_and_lines sals, sals_end;
874 struct symtab_and_line sal = { 0 };
875 struct symtab_and_line sal_end = { 0 };
876 struct symtab_and_line cursal = { 0 };
885 /* Pull in the current default source line if necessary. */
886 if (arg == 0 || arg[0] == '+' || arg[0] == '-')
888 set_default_source_symtab_and_line ();
889 cursal = get_current_source_symtab_and_line ();
892 /* "l" or "l +" lists next ten lines. */
894 if (arg == 0 || strcmp (arg, "+") == 0)
896 print_source_lines (cursal.symtab, cursal.line,
897 cursal.line + get_lines_to_list (), 0);
901 /* "l -" lists previous ten lines, the ones before the ten just
903 if (strcmp (arg, "-") == 0)
905 print_source_lines (cursal.symtab,
906 max (get_first_line_listed ()
907 - get_lines_to_list (), 1),
908 get_first_line_listed (), 0);
912 /* Now if there is only one argument, decode it in SAL
914 If there are two arguments, decode them in SAL and SAL_END
915 and clear NO_END; however, if one of the arguments is blank,
916 set DUMMY_BEG or DUMMY_END to record that fact. */
918 if (!have_full_symbols () && !have_partial_symbols ())
919 error (_("No symbol table is loaded. Use the \"file\" command."));
926 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
933 ambiguous_line_spec (&sals);
942 /* Record whether the BEG arg is all digits. */
944 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
945 linenum_beg = (p == arg1);
947 while (*arg1 == ' ' || *arg1 == '\t')
953 while (*arg1 == ' ' || *arg1 == '\t')
960 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
962 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE,
963 sal.symtab, sal.line);
965 if (sals_end.nelts == 0)
967 if (sals_end.nelts > 1)
969 ambiguous_line_spec (&sals_end);
970 xfree (sals_end.sals);
973 sal_end = sals_end.sals[0];
974 xfree (sals_end.sals);
979 error (_("Junk at end of line specification."));
981 if (!no_end && !dummy_beg && !dummy_end
982 && sal.symtab != sal_end.symtab)
983 error (_("Specified start and end are in different files."));
984 if (dummy_beg && dummy_end)
985 error (_("Two empty args do not say what lines to list."));
987 /* If line was specified by address,
988 first print exactly which line, and which file.
990 In this case, sal.symtab == 0 means address is outside of all
991 known source files, not that user failed to give a filename. */
994 struct gdbarch *gdbarch;
997 /* FIXME-32x64--assumes sal.pc fits in long. */
998 error (_("No source file for address %s."),
999 hex_string ((unsigned long) sal.pc));
1001 gdbarch = get_objfile_arch (sal.symtab->objfile);
1002 sym = find_pc_function (sal.pc);
1004 printf_filtered ("%s is in %s (%s:%d).\n",
1005 paddress (gdbarch, sal.pc),
1006 SYMBOL_PRINT_NAME (sym),
1007 sal.symtab->filename, sal.line);
1009 printf_filtered ("%s is at %s:%d.\n",
1010 paddress (gdbarch, sal.pc),
1011 sal.symtab->filename, sal.line);
1014 /* If line was not specified by just a line number, and it does not
1015 imply a symtab, it must be an undebuggable symbol which means no
1018 if (!linenum_beg && sal.symtab == 0)
1019 error (_("No line number known for %s."), arg);
1021 /* If this command is repeated with RET,
1022 turn it into the no-arg variant. */
1027 if (dummy_beg && sal_end.symtab == 0)
1028 error (_("No default source file yet. Do \"help list\"."));
1030 print_source_lines (sal_end.symtab,
1031 max (sal_end.line - (get_lines_to_list () - 1), 1),
1032 sal_end.line + 1, 0);
1033 else if (sal.symtab == 0)
1034 error (_("No default source file yet. Do \"help list\"."));
1037 int first_line = sal.line - get_lines_to_list () / 2;
1039 if (first_line < 1) first_line = 1;
1041 print_source_lines (sal.symtab,
1043 first_line + get_lines_to_list (),
1047 print_source_lines (sal.symtab, sal.line,
1049 ? sal.line + get_lines_to_list ()
1050 : sal_end.line + 1),
1054 /* Subroutine of disassemble_command to simplify it.
1055 Perform the disassembly.
1056 NAME is the name of the function if known, or NULL.
1057 [LOW,HIGH) are the range of addresses to disassemble.
1058 MIXED is non-zero to print source with the assembler. */
1061 print_disassembly (struct gdbarch *gdbarch, const char *name,
1062 CORE_ADDR low, CORE_ADDR high, int flags)
1065 if (!tui_is_window_visible (DISASSEM_WIN))
1068 printf_filtered ("Dump of assembler code ");
1070 printf_filtered ("for function %s:\n", name);
1072 printf_filtered ("from %s to %s:\n",
1073 paddress (gdbarch, low), paddress (gdbarch, high));
1075 /* Dump the specified range. */
1076 gdb_disassembly (gdbarch, current_uiout, 0, flags, -1, low, high);
1078 printf_filtered ("End of assembler dump.\n");
1079 gdb_flush (gdb_stdout);
1084 tui_show_assembly (gdbarch, low);
1089 /* Subroutine of disassemble_command to simplify it.
1090 Print a disassembly of the current function according to FLAGS. */
1093 disassemble_current_function (int flags)
1095 struct frame_info *frame;
1096 struct gdbarch *gdbarch;
1097 CORE_ADDR low, high, pc;
1100 frame = get_selected_frame (_("No frame selected."));
1101 gdbarch = get_frame_arch (frame);
1102 pc = get_frame_pc (frame);
1103 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1104 error (_("No function contains program counter for selected frame."));
1106 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1109 /* FIXME: cagney/2004-02-07: This should be an observer. */
1110 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1112 low += gdbarch_deprecated_function_start_offset (gdbarch);
1114 print_disassembly (gdbarch, name, low, high, flags);
1117 /* Dump a specified section of assembly code.
1121 - dump the assembly code for the function of the current pc
1122 disassemble [/mr] addr
1123 - dump the assembly code for the function at ADDR
1124 disassemble [/mr] low,high
1125 disassemble [/mr] low,+length
1126 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1128 A /m modifier will include source code with the assembly.
1129 A /r modifier will include raw instructions in hex with the assembly. */
1132 disassemble_command (char *arg, int from_tty)
1134 struct gdbarch *gdbarch = get_current_arch ();
1135 CORE_ADDR low, high;
1143 if (arg && *arg == '/')
1148 error (_("Missing modifier."));
1150 while (*arg && ! isspace (*arg))
1155 flags |= DISASSEMBLY_SOURCE;
1158 flags |= DISASSEMBLY_RAW_INSN;
1161 error (_("Invalid disassembly modifier."));
1165 while (isspace (*arg))
1169 if (! arg || ! *arg)
1171 flags |= DISASSEMBLY_OMIT_FNAME;
1172 disassemble_current_function (flags);
1176 pc = value_as_address (parse_to_comma_and_eval (&arg));
1182 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1183 error (_("No function contains specified address."));
1185 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1188 /* FIXME: cagney/2004-02-07: This should be an observer. */
1189 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1191 low += gdbarch_deprecated_function_start_offset (gdbarch);
1192 flags |= DISASSEMBLY_OMIT_FNAME;
1196 /* Two arguments. */
1199 while (isspace (*arg))
1206 high = parse_and_eval_address (arg);
1211 print_disassembly (gdbarch, name, low, high, flags);
1215 make_command (char *arg, int from_tty)
1223 p = xmalloc (sizeof ("make ") + strlen (arg));
1224 strcpy (p, "make ");
1225 strcpy (p + sizeof ("make ") - 1, arg);
1228 shell_escape (p, from_tty);
1232 show_user (char *args, int from_tty)
1234 struct cmd_list_element *c;
1235 extern struct cmd_list_element *cmdlist;
1239 char *comname = args;
1241 c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1242 /* c->user_commands would be NULL if it's a python command. */
1243 if (c->class != class_user || !c->user_commands)
1244 error (_("Not a user command."));
1245 show_user_1 (c, "", args, gdb_stdout);
1249 for (c = cmdlist; c; c = c->next)
1251 if (c->class == class_user || c->prefixlist != NULL)
1252 show_user_1 (c, "", c->name, gdb_stdout);
1257 /* Search through names of commands and documentations for a certain
1258 regular expression. */
1261 apropos_command (char *searchstr, int from_tty)
1266 if (searchstr == NULL)
1267 error (_("REGEXP string is empty"));
1269 code = regcomp (&pattern, searchstr, REG_ICASE);
1272 struct cleanup *cleanups;
1274 cleanups = make_regfree_cleanup (&pattern);
1275 apropos_cmd (gdb_stdout, cmdlist, &pattern, "");
1276 do_cleanups (cleanups);
1280 char *err = get_regcomp_error (code, &pattern);
1282 make_cleanup (xfree, err);
1283 error (_("Error in regular expression: %s"), err);
1287 /* Subroutine of alias_command to simplify it.
1288 Return the first N elements of ARGV flattened back to a string
1289 with a space separating each element.
1290 ARGV may not be NULL.
1291 This does not take care of quoting elements in case they contain spaces
1295 argv_to_dyn_string (char **argv, int n)
1298 dyn_string_t result = dyn_string_new (10);
1300 gdb_assert (argv != NULL);
1301 gdb_assert (n >= 0 && n <= countargv (argv));
1303 for (i = 0; i < n; ++i)
1306 dyn_string_append_char (result, ' ');
1307 dyn_string_append_cstr (result, argv[i]);
1313 /* Subroutine of alias_command to simplify it.
1314 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1317 valid_command_p (char *command)
1319 struct cmd_list_element *c;
1321 c = lookup_cmd_1 (& command, cmdlist, NULL, 1);
1323 if (c == NULL || c == (struct cmd_list_element *) -1)
1326 /* This is the slightly tricky part.
1327 lookup_cmd_1 will return a pointer to the last part of COMMAND
1328 to match, leaving COMMAND pointing at the remainder. */
1329 while (*command == ' ' || *command == '\t')
1331 return *command == '\0';
1334 /* Make an alias of an existing command. */
1337 alias_command (char *args, int from_tty)
1339 int i, alias_argc, command_argc;
1340 int abbrev_flag = 0;
1341 char *args2, *equals, *alias, *command;
1342 char **alias_argv, **command_argv;
1343 dyn_string_t alias_dyn_string, command_dyn_string;
1344 struct cmd_list_element *c;
1345 static const char usage[] = N_("Usage: alias [-a] [--] ALIAS = COMMAND");
1347 if (args == NULL || strchr (args, '=') == NULL)
1350 args2 = xstrdup (args);
1351 make_cleanup (xfree, args2);
1352 equals = strchr (args2, '=');
1354 alias_argv = gdb_buildargv (args2);
1355 make_cleanup_freeargv (alias_argv);
1356 command_argv = gdb_buildargv (equals + 1);
1357 make_cleanup_freeargv (command_argv);
1359 for (i = 0; alias_argv[i] != NULL; )
1361 if (strcmp (alias_argv[i], "-a") == 0)
1366 else if (strcmp (alias_argv[i], "--") == 0)
1375 if (alias_argv[0] == NULL || command_argv[0] == NULL
1376 || *alias_argv[0] == '\0' || *command_argv[0] == '\0')
1379 for (i = 0; alias_argv[i] != NULL; ++i)
1381 if (! valid_user_defined_cmd_name_p (alias_argv[i]))
1384 error (_("Invalid command name: %s"), alias_argv[i]);
1386 error (_("Invalid command element name: %s"), alias_argv[i]);
1390 alias_argc = countargv (alias_argv);
1391 command_argc = countargv (command_argv);
1393 /* COMMAND must exist.
1394 Reconstruct the command to remove any extraneous spaces,
1395 for better error messages. */
1396 command_dyn_string = argv_to_dyn_string (command_argv, command_argc);
1397 make_cleanup_dyn_string_delete (command_dyn_string);
1398 command = dyn_string_buf (command_dyn_string);
1399 if (! valid_command_p (command))
1400 error (_("Invalid command to alias to: %s"), command);
1402 /* ALIAS must not exist. */
1403 alias_dyn_string = argv_to_dyn_string (alias_argv, alias_argc);
1404 make_cleanup_dyn_string_delete (alias_dyn_string);
1405 alias = dyn_string_buf (alias_dyn_string);
1406 if (valid_command_p (alias))
1407 error (_("Alias already exists: %s"), alias);
1409 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1410 Example: alias spe = set print elements
1412 Otherwise ALIAS and COMMAND must have the same number of words,
1413 and every word except the last must match; and the last word of
1414 ALIAS is made an alias of the last word of COMMAND.
1415 Example: alias set print elms = set pr elem
1416 Note that unambiguous abbreviations are allowed. */
1418 if (alias_argc == 1)
1420 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1421 add_com_alias (xstrdup (alias_argv[0]), command, class_alias,
1426 dyn_string_t alias_prefix_dyn_string, command_prefix_dyn_string;
1427 char *alias_prefix, *command_prefix;
1428 struct cmd_list_element *c_alias, *c_command;
1430 if (alias_argc != command_argc)
1431 error (_("Mismatched command length between ALIAS and COMMAND."));
1433 /* Create copies of ALIAS and COMMAND without the last word,
1434 and use that to verify the leading elements match. */
1435 alias_prefix_dyn_string =
1436 argv_to_dyn_string (alias_argv, alias_argc - 1);
1437 make_cleanup_dyn_string_delete (alias_prefix_dyn_string);
1438 command_prefix_dyn_string =
1439 argv_to_dyn_string (alias_argv, command_argc - 1);
1440 make_cleanup_dyn_string_delete (command_prefix_dyn_string);
1441 alias_prefix = dyn_string_buf (alias_prefix_dyn_string);
1442 command_prefix = dyn_string_buf (command_prefix_dyn_string);
1444 c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1);
1445 /* We've already tried to look up COMMAND. */
1446 gdb_assert (c_command != NULL
1447 && c_command != (struct cmd_list_element *) -1);
1448 gdb_assert (c_command->prefixlist != NULL);
1449 c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1);
1450 if (c_alias != c_command)
1451 error (_("ALIAS and COMMAND prefixes do not match."));
1453 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1454 add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]),
1455 command_argv[command_argc - 1],
1456 class_alias, abbrev_flag, c_command->prefixlist);
1460 /* Print a list of files and line numbers which a user may choose from
1461 in order to list a function which was specified ambiguously (as
1462 with `list classname::overloadedfuncname', for example). The
1463 vector in SALS provides the filenames and line numbers. */
1466 ambiguous_line_spec (struct symtabs_and_lines *sals)
1470 for (i = 0; i < sals->nelts; ++i)
1471 printf_filtered (_("file: \"%s\", line number: %d\n"),
1472 sals->sals[i].symtab->filename, sals->sals[i].line);
1475 /* Sort function for filter_sals. */
1478 compare_symtabs (const void *a, const void *b)
1480 const struct symtab_and_line *sala = a;
1481 const struct symtab_and_line *salb = b;
1484 if (!sala->symtab->dirname)
1486 if (salb->symtab->dirname)
1489 else if (!salb->symtab->dirname)
1491 if (sala->symtab->dirname)
1496 r = filename_cmp (sala->symtab->dirname, salb->symtab->dirname);
1501 r = filename_cmp (sala->symtab->filename, salb->symtab->filename);
1505 if (sala->line < salb->line)
1507 return sala->line == salb->line ? 0 : 1;
1510 /* Remove any SALs that do not match the current program space, or
1511 which appear to be "file:line" duplicates. */
1514 filter_sals (struct symtabs_and_lines *sals)
1519 for (i = 0; i < sals->nelts; ++i)
1521 if (sals->sals[i].pspace == current_program_space
1522 && sals->sals[i].symtab != NULL)
1524 sals->sals[out] = sals->sals[i];
1530 qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line),
1535 for (i = 1; i < sals->nelts; ++i)
1537 if (compare_symtabs (&sals->sals[prev], &sals->sals[i]))
1539 /* Symtabs differ. */
1540 sals->sals[out] = sals->sals[i];
1547 if (sals->nelts == 0)
1555 set_debug (char *arg, int from_tty)
1557 printf_unfiltered (_("\"set debug\" must be followed by "
1558 "the name of a debug subcommand.\n"));
1559 help_list (setdebuglist, "set debug ", -1, gdb_stdout);
1563 show_debug (char *args, int from_tty)
1565 cmd_show_list (showdebuglist, from_tty, "");
1569 init_cmd_lists (void)
1571 max_user_call_depth = 1024;
1581 enablebreaklist = NULL;
1586 showhistlist = NULL;
1587 unsethistlist = NULL;
1588 maintenancelist = NULL;
1589 maintenanceinfolist = NULL;
1590 maintenanceprintlist = NULL;
1591 setprintlist = NULL;
1592 showprintlist = NULL;
1593 setchecklist = NULL;
1594 showchecklist = NULL;
1599 show_info_verbose (struct ui_file *file, int from_tty,
1600 struct cmd_list_element *c,
1604 fprintf_filtered (file,
1605 _("Verbose printing of informational messages is %s.\n"),
1608 fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1612 show_history_expansion_p (struct ui_file *file, int from_tty,
1613 struct cmd_list_element *c, const char *value)
1615 fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1620 show_baud_rate (struct ui_file *file, int from_tty,
1621 struct cmd_list_element *c, const char *value)
1623 fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"),
1628 show_remote_debug (struct ui_file *file, int from_tty,
1629 struct cmd_list_element *c, const char *value)
1631 fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1636 show_remote_timeout (struct ui_file *file, int from_tty,
1637 struct cmd_list_element *c, const char *value)
1639 fprintf_filtered (file,
1640 _("Timeout limit to wait for target to respond is %s.\n"),
1645 show_max_user_call_depth (struct ui_file *file, int from_tty,
1646 struct cmd_list_element *c, const char *value)
1648 fprintf_filtered (file,
1649 _("The max call depth for user-defined commands is %s.\n"),
1655 init_cli_cmds (void)
1657 struct cmd_list_element *c;
1658 char *source_help_text;
1660 /* Define the classes of commands.
1661 They will appear in the help list in alphabetical order. */
1663 add_cmd ("internals", class_maintenance, NULL, _("\
1664 Maintenance commands.\n\
1665 Some gdb commands are provided just for use by gdb maintainers.\n\
1666 These commands are subject to frequent change, and may not be as\n\
1667 well documented as user commands."),
1669 add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist);
1670 add_cmd ("aliases", class_alias, NULL,
1671 _("Aliases of other commands."), &cmdlist);
1672 add_cmd ("user-defined", class_user, NULL, _("\
1673 User-defined commands.\n\
1674 The commands in this class are those defined by the user.\n\
1675 Use the \"define\" command to define a command."), &cmdlist);
1676 add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
1678 add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
1679 add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
1681 add_cmd ("breakpoints", class_breakpoint, NULL,
1682 _("Making program stop at certain points."), &cmdlist);
1683 add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
1684 add_cmd ("stack", class_stack, NULL, _("\
1685 Examining the stack.\n\
1686 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1687 counting from zero for the innermost (currently executing) frame.\n\n\
1688 At any time gdb identifies one frame as the \"selected\" frame.\n\
1689 Variable lookups are done with respect to the selected frame.\n\
1690 When the program being debugged stops, gdb selects the innermost frame.\n\
1691 The commands below can be used to select other frames by number or address."),
1693 add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
1695 /* Define general commands. */
1697 add_com ("pwd", class_files, pwd_command, _("\
1698 Print working directory. This is used for your program as well."));
1700 c = add_cmd ("cd", class_files, cd_command, _("\
1701 Set working directory to DIR for debugger and program being debugged.\n\
1702 The change does not take effect for the program being debugged\n\
1703 until the next time it is started."), &cmdlist);
1704 set_cmd_completer (c, filename_completer);
1706 add_com ("echo", class_support, echo_command, _("\
1707 Print a constant string. Give string as argument.\n\
1708 C escape sequences may be used in the argument.\n\
1709 No newline is added at the end of the argument;\n\
1710 use \"\\n\" if you want a newline to be printed.\n\
1711 Since leading and trailing whitespace are ignored in command arguments,\n\
1712 if you want to print some you must use \"\\\" before leading whitespace\n\
1713 to be printed or after trailing whitespace."));
1714 add_com ("document", class_support, document_command, _("\
1715 Document a user-defined command.\n\
1716 Give command name as argument. Give documentation on following lines.\n\
1717 End with a line of just \"end\"."));
1718 add_com ("define", class_support, define_command, _("\
1719 Define a new command name. Command name is argument.\n\
1720 Definition appears on following lines, one command per line.\n\
1721 End with a line of just \"end\".\n\
1722 Use the \"document\" command to give documentation for the new command.\n\
1723 Commands defined in this way may have up to ten arguments."));
1725 source_help_text = xstrprintf (_("\
1726 Read commands from a file named FILE.\n\
1728 Usage: source [-s] [-v] FILE\n\
1729 -s: search for the script in the source search path,\n\
1730 even if FILE contains directories.\n\
1731 -v: each command in FILE is echoed as it is executed.\n\
1733 Note that the file \"%s\" is read automatically in this way\n\
1734 when GDB is started."), gdbinit);
1735 c = add_cmd ("source", class_support, source_command,
1736 source_help_text, &cmdlist);
1737 set_cmd_completer (c, filename_completer);
1739 add_setshow_enum_cmd ("script-extension", class_support,
1740 script_ext_enums, &script_ext_mode, _("\
1741 Set mode for script filename extension recognition."), _("\
1742 Show mode for script filename extension recognition."), _("\
1743 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1744 soft == evaluate script according to filename extension, fallback to GDB script"
1746 strict == evaluate script according to filename extension, error if not supported"
1749 show_script_ext_mode,
1750 &setlist, &showlist);
1752 add_com ("quit", class_support, quit_command, _("Exit gdb."));
1753 c = add_com ("help", class_support, help_command,
1754 _("Print list of commands."));
1755 set_cmd_completer (c, command_completer);
1756 add_com_alias ("q", "quit", class_support, 1);
1757 add_com_alias ("h", "help", class_support, 1);
1759 add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1760 Set verbosity."), _("\
1761 Show verbosity."), NULL,
1764 &setlist, &showlist);
1766 add_prefix_cmd ("history", class_support, set_history,
1767 _("Generic command for setting command history parameters."),
1768 &sethistlist, "set history ", 0, &setlist);
1769 add_prefix_cmd ("history", class_support, show_history,
1770 _("Generic command for showing command history parameters."),
1771 &showhistlist, "show history ", 0, &showlist);
1773 add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1774 Set history expansion on command input."), _("\
1775 Show history expansion on command input."), _("\
1776 Without an argument, history expansion is enabled."),
1778 show_history_expansion_p,
1779 &sethistlist, &showhistlist);
1781 add_prefix_cmd ("info", class_info, info_command, _("\
1782 Generic command for showing things about the program being debugged."),
1783 &infolist, "info ", 0, &cmdlist);
1784 add_com_alias ("i", "info", class_info, 1);
1785 add_com_alias ("inf", "info", class_info, 1);
1787 add_com ("complete", class_obscure, complete_command,
1788 _("List the completions for the rest of the line as a command."));
1790 add_prefix_cmd ("show", class_info, show_command, _("\
1791 Generic command for showing things about the debugger."),
1792 &showlist, "show ", 0, &cmdlist);
1793 /* Another way to get at the same thing. */
1794 add_info ("set", show_command, _("Show all GDB settings."));
1796 add_cmd ("commands", no_set_class, show_commands, _("\
1797 Show the history of commands you typed.\n\
1798 You can supply a command number to start with, or a `+' to start after\n\
1799 the previous command number shown."),
1802 add_cmd ("version", no_set_class, show_version,
1803 _("Show what version of GDB this is."), &showlist);
1805 add_com ("while", class_support, while_command, _("\
1806 Execute nested commands WHILE the conditional expression is non zero.\n\
1807 The conditional expression must follow the word `while' and must in turn be\n\
1808 followed by a new line. The nested commands must be entered one per line,\n\
1809 and should be terminated by the word `end'."));
1811 add_com ("if", class_support, if_command, _("\
1812 Execute nested commands once IF the conditional expression is non zero.\n\
1813 The conditional expression must follow the word `if' and must in turn be\n\
1814 followed by a new line. The nested commands must be entered one per line,\n\
1815 and should be terminated by the word 'else' or `end'. If an else clause\n\
1816 is used, the same rules apply to its nested commands as to the first ones."));
1818 /* If target is open when baud changes, it doesn't take effect until
1819 the next open (I think, not sure). */
1820 add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\
1821 Set baud rate for remote serial I/O."), _("\
1822 Show baud rate for remote serial I/O."), _("\
1823 This value is used to set the speed of the serial port when debugging\n\
1824 using remote targets."),
1827 &setlist, &showlist);
1829 add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1830 Set debugging of remote protocol."), _("\
1831 Show debugging of remote protocol."), _("\
1832 When enabled, each packet sent or received with the remote target\n\
1836 &setdebuglist, &showdebuglist);
1838 add_setshow_integer_cmd ("remotetimeout", no_class, &remote_timeout, _("\
1839 Set timeout limit to wait for target to respond."), _("\
1840 Show timeout limit to wait for target to respond."), _("\
1841 This value is used to set the time limit for gdb to wait for a response\n\
1844 show_remote_timeout,
1845 &setlist, &showlist);
1847 add_prefix_cmd ("debug", no_class, set_debug,
1848 _("Generic command for setting gdb debugging flags"),
1849 &setdebuglist, "set debug ", 0, &setlist);
1851 add_prefix_cmd ("debug", no_class, show_debug,
1852 _("Generic command for showing gdb debugging flags"),
1853 &showdebuglist, "show debug ", 0, &showlist);
1855 c = add_com ("shell", class_support, shell_escape, _("\
1856 Execute the rest of the line as a shell command.\n\
1857 With no arguments, run an inferior shell."));
1858 set_cmd_completer (c, filename_completer);
1860 c = add_com ("edit", class_files, edit_command, _("\
1861 Edit specified file or function.\n\
1862 With no argument, edits file containing most recent line listed.\n\
1863 Editing targets can be specified in these ways:\n\
1864 FILE:LINENUM, to edit at that line in that file,\n\
1865 FUNCTION, to edit at the beginning of that function,\n\
1866 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1867 *ADDRESS, to edit at the line containing that address.\n\
1868 Uses EDITOR environment variable contents as editor (or ex as default)."));
1870 c->completer = location_completer;
1872 add_com ("list", class_files, list_command, _("\
1873 List specified function or line.\n\
1874 With no argument, lists ten more lines after or around previous listing.\n\
1875 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1876 One argument specifies a line, and ten lines are listed around that line.\n\
1877 Two arguments with comma between specify starting and ending lines to list.\n\
1878 Lines can be specified in these ways:\n\
1879 LINENUM, to list around that line in current file,\n\
1880 FILE:LINENUM, to list around that line in that file,\n\
1881 FUNCTION, to list around beginning of that function,\n\
1882 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1883 *ADDRESS, to list around the line containing that address.\n\
1884 With two args if one is empty it stands for ten lines away from \
1888 add_com_alias ("l", "list", class_files, 1);
1890 add_com_alias ("v", "list", class_files, 1);
1893 add_com_alias ("file", "list", class_files, 1);
1895 c = add_com ("disassemble", class_vars, disassemble_command, _("\
1896 Disassemble a specified section of memory.\n\
1897 Default is the function surrounding the pc of the selected frame.\n\
1898 With a /m modifier, source lines are included (if available).\n\
1899 With a /r modifier, raw instructions in hex are included.\n\
1900 With a single argument, the function surrounding that address is dumped.\n\
1901 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1902 in the form of \"start,end\", or \"start,+length\"."));
1903 set_cmd_completer (c, location_completer);
1905 add_com_alias ("va", "disassemble", class_xdb, 0);
1907 add_com_alias ("!", "shell", class_support, 0);
1909 c = add_com ("make", class_support, make_command, _("\
1910 Run the ``make'' program using the rest of the line as arguments."));
1911 set_cmd_completer (c, filename_completer);
1912 add_cmd ("user", no_class, show_user, _("\
1913 Show definitions of non-python user defined commands.\n\
1914 Argument is the name of the user defined command.\n\
1915 With no argument, show definitions of all user defined commands."), &showlist);
1916 add_com ("apropos", class_support, apropos_command,
1917 _("Search for commands matching a REGEXP"));
1919 add_setshow_integer_cmd ("max-user-call-depth", no_class,
1920 &max_user_call_depth, _("\
1921 Set the max call depth for non-python user-defined commands."), _("\
1922 Show the max call depth for non-python user-defined commands."), NULL,
1924 show_max_user_call_depth,
1925 &setlist, &showlist);
1927 add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1928 Set tracing of GDB CLI commands."), _("\
1929 Show state of GDB CLI command tracing."), _("\
1930 When 'on', each command is displayed as it is executed."),
1933 &setlist, &showlist);
1935 c = add_com ("alias", class_support, alias_command, _("\
1936 Define a new command that is an alias of an existing command.\n\
1937 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1938 ALIAS is the name of the alias command to create.\n\
1939 COMMAND is the command being aliased to.\n\
1940 If \"-a\" is specified, the command is an abbreviation,\n\
1941 and will not appear in help command list output.\n\
1944 Make \"spe\" an alias of \"set print elements\":\n\
1945 alias spe = set print elements\n\
1946 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1947 alias -a set print elms = set print elements"));