3 Copyright (C) 2000-2013 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"
42 #include "filestuff.h"
47 #include "cli/cli-decode.h"
48 #include "cli/cli-script.h"
49 #include "cli/cli-setshow.h"
50 #include "cli/cli-cmds.h"
51 #include "cli/cli-utils.h"
53 #include "python/python.h"
56 #include "tui/tui.h" /* For tui_active et.al. */
61 /* Prototypes for local command functions */
63 static void complete_command (char *, int);
65 static void echo_command (char *, int);
67 static void pwd_command (char *, int);
69 static void show_version (char *, int);
71 static void help_command (char *, int);
73 static void show_command (char *, int);
75 static void info_command (char *, int);
77 static void show_debug (char *, int);
79 static void set_debug (char *, int);
81 static void show_user (char *, int);
83 static void make_command (char *, int);
85 static void shell_escape (char *, int);
87 static void edit_command (char *, int);
89 static void list_command (char *, int);
91 /* Prototypes for local utility functions */
93 static void ambiguous_line_spec (struct symtabs_and_lines *);
95 static void filter_sals (struct symtabs_and_lines *);
98 /* Limit the call depth of user-defined commands */
99 unsigned int max_user_call_depth;
101 /* Define all cmd_list_elements. */
103 /* Chain containing all defined commands. */
105 struct cmd_list_element *cmdlist;
107 /* Chain containing all defined info subcommands. */
109 struct cmd_list_element *infolist;
111 /* Chain containing all defined enable subcommands. */
113 struct cmd_list_element *enablelist;
115 /* Chain containing all defined disable subcommands. */
117 struct cmd_list_element *disablelist;
119 /* Chain containing all defined stop subcommands. */
121 struct cmd_list_element *stoplist;
123 /* Chain containing all defined delete subcommands. */
125 struct cmd_list_element *deletelist;
127 /* Chain containing all defined detach subcommands. */
129 struct cmd_list_element *detachlist;
131 /* Chain containing all defined kill subcommands. */
133 struct cmd_list_element *killlist;
135 /* Chain containing all defined set subcommands */
137 struct cmd_list_element *setlist;
139 /* Chain containing all defined unset subcommands */
141 struct cmd_list_element *unsetlist;
143 /* Chain containing all defined show subcommands. */
145 struct cmd_list_element *showlist;
147 /* Chain containing all defined \"set history\". */
149 struct cmd_list_element *sethistlist;
151 /* Chain containing all defined \"show history\". */
153 struct cmd_list_element *showhistlist;
155 /* Chain containing all defined \"unset history\". */
157 struct cmd_list_element *unsethistlist;
159 /* Chain containing all defined maintenance subcommands. */
161 struct cmd_list_element *maintenancelist;
163 /* Chain containing all defined "maintenance info" subcommands. */
165 struct cmd_list_element *maintenanceinfolist;
167 /* Chain containing all defined "maintenance print" subcommands. */
169 struct cmd_list_element *maintenanceprintlist;
171 struct cmd_list_element *setprintlist;
173 struct cmd_list_element *showprintlist;
175 struct cmd_list_element *setdebuglist;
177 struct cmd_list_element *showdebuglist;
179 struct cmd_list_element *setchecklist;
181 struct cmd_list_element *showchecklist;
183 /* Command tracing state. */
185 int source_verbose = 0;
186 int trace_commands = 0;
188 /* 'script-extension' option support. */
190 static const char script_ext_off[] = "off";
191 static const char script_ext_soft[] = "soft";
192 static const char script_ext_strict[] = "strict";
194 static const char *const script_ext_enums[] = {
201 static const char *script_ext_mode = script_ext_soft;
203 /* Utility used everywhere when at least one argument is needed and
207 error_no_arg (char *why)
209 error (_("Argument required (%s)."), why);
212 /* The "info" command is defined as a prefix, with allow_unknown = 0.
213 Therefore, its own definition is called only for "info" with no
217 info_command (char *arg, int from_tty)
219 printf_unfiltered (_("\"info\" must be followed by "
220 "the name of an info command.\n"));
221 help_list (infolist, "info ", -1, gdb_stdout);
224 /* The "show" command with no arguments shows all the settings. */
227 show_command (char *arg, int from_tty)
229 cmd_show_list (showlist, from_tty, "");
232 /* Provide documentation on command or list given by COMMAND. FROM_TTY
236 help_command (char *command, int from_tty)
238 help_cmd (command, gdb_stdout);
241 /* The "complete" command is used by Emacs to implement completion. */
244 complete_command (char *arg, int from_tty)
247 char *point, *arg_prefix;
248 VEC (char_ptr) *completions;
254 argpoint = strlen (arg);
256 /* complete_line assumes that its first argument is somewhere
257 within, and except for filenames at the beginning of, the word to
258 be completed. The following crude imitation of readline's
259 word-breaking tries to accomodate this. */
260 point = arg + argpoint;
263 if (strchr (rl_completer_word_break_characters, point[-1]) != 0)
268 arg_prefix = alloca (point - arg + 1);
269 memcpy (arg_prefix, arg, point - arg);
270 arg_prefix[point - arg] = 0;
272 completions = complete_line (point, arg, argpoint);
276 int ix, size = VEC_length (char_ptr, completions);
277 char *item, *prev = NULL;
279 qsort (VEC_address (char_ptr, completions), size,
280 sizeof (char *), compare_strings);
282 /* We do extra processing here since we only want to print each
284 for (ix = 0; VEC_iterate (char_ptr, completions, ix, item); ++ix)
286 if (prev == NULL || strcmp (item, prev) != 0)
288 printf_unfiltered ("%s%s\n", arg_prefix, item);
297 VEC_free (char_ptr, completions);
302 is_complete_command (struct cmd_list_element *c)
304 return cmd_cfunc_eq (c, complete_command);
308 show_version (char *args, int from_tty)
310 print_gdb_version (gdb_stdout);
311 printf_filtered ("\n");
315 show_configuration (char *args, int from_tty)
317 print_gdb_configuration (gdb_stdout);
320 /* Handle the quit command. */
323 quit_command (char *args, int from_tty)
325 if (!quit_confirm ())
326 error (_("Not confirmed."));
328 query_if_trace_running (from_tty);
330 quit_force (args, from_tty);
334 pwd_command (char *args, int from_tty)
337 error (_("The \"pwd\" command does not take an argument: %s"), args);
338 if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
339 error (_("Error finding name of working directory: %s"),
340 safe_strerror (errno));
342 if (strcmp (gdb_dirbuf, current_directory) != 0)
343 printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
344 current_directory, gdb_dirbuf);
346 printf_unfiltered (_("Working directory %s.\n"), current_directory);
350 cd_command (char *dir, int from_tty)
353 /* Found something other than leading repetitions of "/..". */
356 struct cleanup *cleanup;
358 /* If the new directory is absolute, repeat is a no-op; if relative,
359 repeat might be useful but is more likely to be a mistake. */
365 dir = tilde_expand (dir);
366 cleanup = make_cleanup (xfree, dir);
369 perror_with_name (dir);
371 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
372 /* There's too much mess with DOSish names like "d:", "d:.",
373 "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
374 simply get the canonicalized name of the current directory. */
375 dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
379 if (IS_DIR_SEPARATOR (dir[len - 1]))
381 /* Remove the trailing slash unless this is a root directory
382 (including a drive letter on non-Unix systems). */
383 if (!(len == 1) /* "/" */
384 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
385 && !(len == 3 && dir[1] == ':') /* "d:/" */
391 dir = savestring (dir, len);
392 if (IS_ABSOLUTE_PATH (dir))
393 current_directory = dir;
396 if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
397 current_directory = concat (current_directory, dir, (char *)NULL);
399 current_directory = concat (current_directory, SLASH_STRING,
404 /* Now simplify any occurrences of `.' and `..' in the pathname. */
407 for (p = current_directory; *p;)
409 if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.'
410 && (p[2] == 0 || IS_DIR_SEPARATOR (p[2])))
411 memmove (p, p + 2, strlen (p + 2) + 1);
412 else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.'
413 && (p[3] == 0 || IS_DIR_SEPARATOR (p[3])))
417 /* Search backwards for the directory just before the "/.."
418 and obliterate it and the "/..". */
421 while (q != current_directory && !IS_DIR_SEPARATOR (q[-1]))
424 if (q == current_directory)
425 /* current_directory is
426 a relative pathname ("can't happen"--leave it alone). */
430 memmove (q - 1, p + 3, strlen (p + 3) + 1);
435 /* We are dealing with leading repetitions of "/..", for
436 example "/../..", which is the Mach super-root. */
446 forget_cached_source_info ();
449 pwd_command ((char *) 0, 1);
451 do_cleanups (cleanup);
454 /* Show the current value of the 'script-extension' option. */
457 show_script_ext_mode (struct ui_file *file, int from_tty,
458 struct cmd_list_element *c, const char *value)
460 fprintf_filtered (file,
461 _("Script filename extension recognition is \"%s\".\n"),
465 /* Try to open SCRIPT_FILE.
466 If successful, the full path name is stored in *FULL_PATHP,
467 the stream is stored in *STREAMP, and return 1.
468 The caller is responsible for freeing *FULL_PATHP.
469 If not successful, return 0; errno is set for the last file
472 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
473 search for it in the source search path. */
476 find_and_open_script (const char *script_file, int search_path,
477 FILE **streamp, char **full_pathp)
481 struct cleanup *old_cleanups;
482 int search_flags = OPF_TRY_CWD_FIRST;
484 file = tilde_expand (script_file);
485 old_cleanups = make_cleanup (xfree, file);
488 search_flags |= OPF_SEARCH_IN_PATH;
490 /* Search for and open 'file' on the search path used for source
491 files. Put the full location in *FULL_PATHP. */
492 fd = openp (source_path, search_flags,
493 file, O_RDONLY, full_pathp);
497 int save_errno = errno;
498 do_cleanups (old_cleanups);
503 do_cleanups (old_cleanups);
505 *streamp = fdopen (fd, FOPEN_RT);
506 if (*streamp == NULL)
508 int save_errno = errno;
520 /* Load script FILE, which has already been opened as STREAM. */
523 source_script_from_stream (FILE *stream, const char *file)
525 if (script_ext_mode != script_ext_off
526 && strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py"))
528 volatile struct gdb_exception e;
530 TRY_CATCH (e, RETURN_MASK_ERROR)
532 source_python_script (stream, file);
536 /* Should we fallback to ye olde GDB script mode? */
537 if (script_ext_mode == script_ext_soft
538 && e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR)
540 fseek (stream, 0, SEEK_SET);
541 script_from_file (stream, (char*) file);
545 /* Nope, just punt. */
551 script_from_file (stream, file);
554 /* Worker to perform the "source" command.
556 If SEARCH_PATH is non-zero, and the file isn't found in cwd,
557 search for it in the source search path. */
560 source_script_with_search (const char *file, int from_tty, int search_path)
564 struct cleanup *old_cleanups;
566 if (file == NULL || *file == 0)
567 error (_("source command requires file name of file to source."));
569 if (!find_and_open_script (file, search_path, &stream, &full_path))
571 /* The script wasn't found, or was otherwise inaccessible.
572 If the source command was invoked interactively, throw an
573 error. Otherwise (e.g. if it was invoked by a script),
574 silently ignore the error. */
576 perror_with_name (file);
581 old_cleanups = make_cleanup (xfree, full_path);
582 make_cleanup_fclose (stream);
583 /* The python support reopens the file, so we need to pass full_path here
584 in case the file was found on the search path. It's useful to do this
585 anyway so that error messages show the actual file used. But only do
586 this if we (may have) used search_path, as printing the full path in
587 errors for the non-search case can be more noise than signal. */
588 source_script_from_stream (stream, search_path ? full_path : file);
589 do_cleanups (old_cleanups);
592 /* Wrapper around source_script_with_search to export it to main.c
593 for use in loading .gdbinit scripts. */
596 source_script (const char *file, int from_tty)
598 source_script_with_search (file, from_tty, 0);
601 /* Return the source_verbose global variable to its previous state
602 on exit from the source command, by whatever means. */
604 source_verbose_cleanup (void *old_value)
606 source_verbose = *(int *)old_value;
611 source_command (char *args, int from_tty)
613 struct cleanup *old_cleanups;
615 int *old_source_verbose = xmalloc (sizeof(int));
618 *old_source_verbose = source_verbose;
619 old_cleanups = make_cleanup (source_verbose_cleanup,
622 /* -v causes the source command to run in verbose mode.
623 -s causes the file to be searched in the source search path,
624 even if the file name contains a '/'.
625 We still have to be able to handle filenames with spaces in a
626 backward compatible way, so buildargv is not appropriate. */
630 while (args[0] != '\0')
632 /* Make sure leading white space does not break the
634 args = skip_spaces (args);
639 if (args[1] == 'v' && isspace (args[2]))
643 /* Skip passed -v. */
646 else if (args[1] == 's' && isspace (args[2]))
650 /* Skip passed -s. */
657 file = skip_spaces (args);
660 source_script_with_search (file, from_tty, search_path);
662 do_cleanups (old_cleanups);
667 echo_command (char *text, int from_tty)
673 while ((c = *p++) != '\0')
677 /* \ at end of argument is used after spaces
678 so they won't be lost. */
682 c = parse_escape (get_current_arch (), &p);
684 printf_filtered ("%c", c);
687 printf_filtered ("%c", c);
690 /* Force this output to appear now. */
692 gdb_flush (gdb_stdout);
696 shell_escape (char *arg, int from_tty)
698 #if defined(CANT_FORK) || \
699 (!defined(HAVE_WORKING_VFORK) && !defined(HAVE_WORKING_FORK))
700 /* If ARG is NULL, they want an inferior shell, but `system' just
701 reports if the shell is available when passed a NULL arg. */
702 int rc = system (arg ? arg : "");
705 arg = "inferior shell";
709 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
710 safe_strerror (errno));
711 gdb_flush (gdb_stderr);
715 fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
716 gdb_flush (gdb_stderr);
719 /* Make sure to return to the directory GDB thinks it is, in case
720 the shell command we just ran changed it. */
721 chdir (current_directory);
723 #else /* Can fork. */
726 if ((pid = vfork ()) == 0)
728 const char *p, *user_shell;
732 if ((user_shell = (char *) getenv ("SHELL")) == NULL)
733 user_shell = "/bin/sh";
735 /* Get the name of the shell for arg0. */
736 p = lbasename (user_shell);
739 execl (user_shell, p, (char *) 0);
741 execl (user_shell, p, "-c", arg, (char *) 0);
743 fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
744 safe_strerror (errno));
745 gdb_flush (gdb_stderr);
750 waitpid (pid, &status, 0);
752 error (_("Fork failed"));
753 #endif /* Can fork. */
757 edit_command (char *arg, int from_tty)
759 struct symtabs_and_lines sals;
760 struct symtab_and_line sal;
767 /* Pull in the current default source line if necessary. */
770 set_default_source_symtab_and_line ();
771 sal = get_current_source_symtab_and_line ();
774 /* Bare "edit" edits file with present line. */
779 error (_("No default source file yet."));
780 sal.line += get_lines_to_list () / 2;
784 /* Now should only be one argument -- decode it in SAL. */
787 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
797 ambiguous_line_spec (&sals);
806 error (_("Junk at end of line specification."));
808 /* If line was specified by address, first print exactly which
809 line, and which file. In this case, sal.symtab == 0 means
810 address is outside of all known source files, not that user
811 failed to give a filename. */
814 struct gdbarch *gdbarch;
817 /* FIXME-32x64--assumes sal.pc fits in long. */
818 error (_("No source file for address %s."),
819 hex_string ((unsigned long) sal.pc));
821 gdbarch = get_objfile_arch (sal.symtab->objfile);
822 sym = find_pc_function (sal.pc);
824 printf_filtered ("%s is in %s (%s:%d).\n",
825 paddress (gdbarch, sal.pc),
826 SYMBOL_PRINT_NAME (sym),
827 symtab_to_filename_for_display (sal.symtab),
830 printf_filtered ("%s is at %s:%d.\n",
831 paddress (gdbarch, sal.pc),
832 symtab_to_filename_for_display (sal.symtab),
836 /* If what was given does not imply a symtab, it must be an
837 undebuggable symbol which means no source code. */
840 error (_("No line number known for %s."), arg);
843 if ((editor = (char *) getenv ("EDITOR")) == NULL)
846 fn = symtab_to_fullname (sal.symtab);
848 /* Quote the file name, in case it has whitespace or other special
850 p = xstrprintf ("%s +%d \"%s\"", editor, sal.line, fn);
851 shell_escape (p, from_tty);
856 list_command (char *arg, int from_tty)
858 struct symtabs_and_lines sals, sals_end;
859 struct symtab_and_line sal = { 0 };
860 struct symtab_and_line sal_end = { 0 };
861 struct symtab_and_line cursal = { 0 };
870 /* Pull in the current default source line if necessary. */
871 if (arg == 0 || arg[0] == '+' || arg[0] == '-')
873 set_default_source_symtab_and_line ();
874 cursal = get_current_source_symtab_and_line ();
877 /* "l" or "l +" lists next ten lines. */
879 if (arg == 0 || strcmp (arg, "+") == 0)
881 print_source_lines (cursal.symtab, cursal.line,
882 cursal.line + get_lines_to_list (), 0);
886 /* "l -" lists previous ten lines, the ones before the ten just
888 if (strcmp (arg, "-") == 0)
890 print_source_lines (cursal.symtab,
891 max (get_first_line_listed ()
892 - get_lines_to_list (), 1),
893 get_first_line_listed (), 0);
897 /* Now if there is only one argument, decode it in SAL
899 If there are two arguments, decode them in SAL and SAL_END
900 and clear NO_END; however, if one of the arguments is blank,
901 set DUMMY_BEG or DUMMY_END to record that fact. */
903 if (!have_full_symbols () && !have_partial_symbols ())
904 error (_("No symbol table is loaded. Use the \"file\" command."));
911 sals = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
918 ambiguous_line_spec (&sals);
927 /* Record whether the BEG arg is all digits. */
929 for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++);
930 linenum_beg = (p == arg1);
932 while (*arg1 == ' ' || *arg1 == '\t')
938 while (*arg1 == ' ' || *arg1 == '\t')
945 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE, 0, 0);
947 sals_end = decode_line_1 (&arg1, DECODE_LINE_LIST_MODE,
948 sal.symtab, sal.line);
949 filter_sals (&sals_end);
950 if (sals_end.nelts == 0)
952 if (sals_end.nelts > 1)
954 ambiguous_line_spec (&sals_end);
955 xfree (sals_end.sals);
958 sal_end = sals_end.sals[0];
959 xfree (sals_end.sals);
964 error (_("Junk at end of line specification."));
966 if (!no_end && !dummy_beg && !dummy_end
967 && sal.symtab != sal_end.symtab)
968 error (_("Specified start and end are in different files."));
969 if (dummy_beg && dummy_end)
970 error (_("Two empty args do not say what lines to list."));
972 /* If line was specified by address,
973 first print exactly which line, and which file.
975 In this case, sal.symtab == 0 means address is outside of all
976 known source files, not that user failed to give a filename. */
979 struct gdbarch *gdbarch;
982 /* FIXME-32x64--assumes sal.pc fits in long. */
983 error (_("No source file for address %s."),
984 hex_string ((unsigned long) sal.pc));
986 gdbarch = get_objfile_arch (sal.symtab->objfile);
987 sym = find_pc_function (sal.pc);
989 printf_filtered ("%s is in %s (%s:%d).\n",
990 paddress (gdbarch, sal.pc),
991 SYMBOL_PRINT_NAME (sym),
992 symtab_to_filename_for_display (sal.symtab), sal.line);
994 printf_filtered ("%s is at %s:%d.\n",
995 paddress (gdbarch, sal.pc),
996 symtab_to_filename_for_display (sal.symtab), sal.line);
999 /* If line was not specified by just a line number, and it does not
1000 imply a symtab, it must be an undebuggable symbol which means no
1003 if (!linenum_beg && sal.symtab == 0)
1004 error (_("No line number known for %s."), arg);
1006 /* If this command is repeated with RET,
1007 turn it into the no-arg variant. */
1012 if (dummy_beg && sal_end.symtab == 0)
1013 error (_("No default source file yet. Do \"help list\"."));
1015 print_source_lines (sal_end.symtab,
1016 max (sal_end.line - (get_lines_to_list () - 1), 1),
1017 sal_end.line + 1, 0);
1018 else if (sal.symtab == 0)
1019 error (_("No default source file yet. Do \"help list\"."));
1022 int first_line = sal.line - get_lines_to_list () / 2;
1024 if (first_line < 1) first_line = 1;
1026 print_source_lines (sal.symtab,
1028 first_line + get_lines_to_list (),
1032 print_source_lines (sal.symtab, sal.line,
1034 ? sal.line + get_lines_to_list ()
1035 : sal_end.line + 1),
1039 /* Subroutine of disassemble_command to simplify it.
1040 Perform the disassembly.
1041 NAME is the name of the function if known, or NULL.
1042 [LOW,HIGH) are the range of addresses to disassemble.
1043 MIXED is non-zero to print source with the assembler. */
1046 print_disassembly (struct gdbarch *gdbarch, const char *name,
1047 CORE_ADDR low, CORE_ADDR high, int flags)
1050 if (!tui_is_window_visible (DISASSEM_WIN))
1053 printf_filtered ("Dump of assembler code ");
1055 printf_filtered ("for function %s:\n", name);
1057 printf_filtered ("from %s to %s:\n",
1058 paddress (gdbarch, low), paddress (gdbarch, high));
1060 /* Dump the specified range. */
1061 gdb_disassembly (gdbarch, current_uiout, 0, flags, -1, low, high);
1063 printf_filtered ("End of assembler dump.\n");
1064 gdb_flush (gdb_stdout);
1069 tui_show_assembly (gdbarch, low);
1074 /* Subroutine of disassemble_command to simplify it.
1075 Print a disassembly of the current function according to FLAGS. */
1078 disassemble_current_function (int flags)
1080 struct frame_info *frame;
1081 struct gdbarch *gdbarch;
1082 CORE_ADDR low, high, pc;
1085 frame = get_selected_frame (_("No frame selected."));
1086 gdbarch = get_frame_arch (frame);
1087 pc = get_frame_address_in_block (frame);
1088 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1089 error (_("No function contains program counter for selected frame."));
1091 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1094 /* FIXME: cagney/2004-02-07: This should be an observer. */
1095 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1097 low += gdbarch_deprecated_function_start_offset (gdbarch);
1099 print_disassembly (gdbarch, name, low, high, flags);
1102 /* Dump a specified section of assembly code.
1106 - dump the assembly code for the function of the current pc
1107 disassemble [/mr] addr
1108 - dump the assembly code for the function at ADDR
1109 disassemble [/mr] low,high
1110 disassemble [/mr] low,+length
1111 - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
1113 A /m modifier will include source code with the assembly.
1114 A /r modifier will include raw instructions in hex with the assembly. */
1117 disassemble_command (char *arg, int from_tty)
1119 struct gdbarch *gdbarch = get_current_arch ();
1120 CORE_ADDR low, high;
1135 error (_("Missing modifier."));
1137 while (*p && ! isspace (*p))
1142 flags |= DISASSEMBLY_SOURCE;
1145 flags |= DISASSEMBLY_RAW_INSN;
1148 error (_("Invalid disassembly modifier."));
1152 p = skip_spaces_const (p);
1157 flags |= DISASSEMBLY_OMIT_FNAME;
1158 disassemble_current_function (flags);
1162 pc = value_as_address (parse_to_comma_and_eval (&p));
1168 if (find_pc_partial_function (pc, &name, &low, &high) == 0)
1169 error (_("No function contains specified address."));
1171 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1174 /* FIXME: cagney/2004-02-07: This should be an observer. */
1175 low = tui_get_low_disassembly_address (gdbarch, low, pc);
1177 low += gdbarch_deprecated_function_start_offset (gdbarch);
1178 flags |= DISASSEMBLY_OMIT_FNAME;
1182 /* Two arguments. */
1185 p = skip_spaces_const (p);
1191 high = parse_and_eval_address (p);
1196 print_disassembly (gdbarch, name, low, high, flags);
1200 make_command (char *arg, int from_tty)
1208 p = xmalloc (sizeof ("make ") + strlen (arg));
1209 strcpy (p, "make ");
1210 strcpy (p + sizeof ("make ") - 1, arg);
1213 shell_escape (p, from_tty);
1217 show_user (char *args, int from_tty)
1219 struct cmd_list_element *c;
1220 extern struct cmd_list_element *cmdlist;
1224 const char *comname = args;
1226 c = lookup_cmd (&comname, cmdlist, "", 0, 1);
1227 /* c->user_commands would be NULL if it's a python command. */
1228 if (c->class != class_user || !c->user_commands)
1229 error (_("Not a user command."));
1230 show_user_1 (c, "", args, gdb_stdout);
1234 for (c = cmdlist; c; c = c->next)
1236 if (c->class == class_user || c->prefixlist != NULL)
1237 show_user_1 (c, "", c->name, gdb_stdout);
1242 /* Search through names of commands and documentations for a certain
1243 regular expression. */
1246 apropos_command (char *searchstr, int from_tty)
1251 if (searchstr == NULL)
1252 error (_("REGEXP string is empty"));
1254 code = regcomp (&pattern, searchstr, REG_ICASE);
1257 struct cleanup *cleanups;
1259 cleanups = make_regfree_cleanup (&pattern);
1260 apropos_cmd (gdb_stdout, cmdlist, &pattern, "");
1261 do_cleanups (cleanups);
1265 char *err = get_regcomp_error (code, &pattern);
1267 make_cleanup (xfree, err);
1268 error (_("Error in regular expression: %s"), err);
1272 /* Subroutine of alias_command to simplify it.
1273 Return the first N elements of ARGV flattened back to a string
1274 with a space separating each element.
1275 ARGV may not be NULL.
1276 This does not take care of quoting elements in case they contain spaces
1280 argv_to_dyn_string (char **argv, int n)
1283 dyn_string_t result = dyn_string_new (10);
1285 gdb_assert (argv != NULL);
1286 gdb_assert (n >= 0 && n <= countargv (argv));
1288 for (i = 0; i < n; ++i)
1291 dyn_string_append_char (result, ' ');
1292 dyn_string_append_cstr (result, argv[i]);
1298 /* Subroutine of alias_command to simplify it.
1299 Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
1302 valid_command_p (const char *command)
1304 struct cmd_list_element *c;
1306 c = lookup_cmd_1 (& command, cmdlist, NULL, 1);
1308 if (c == NULL || c == (struct cmd_list_element *) -1)
1311 /* This is the slightly tricky part.
1312 lookup_cmd_1 will return a pointer to the last part of COMMAND
1313 to match, leaving COMMAND pointing at the remainder. */
1314 while (*command == ' ' || *command == '\t')
1316 return *command == '\0';
1319 /* Make an alias of an existing command. */
1322 alias_command (char *args, int from_tty)
1324 int i, alias_argc, command_argc;
1325 int abbrev_flag = 0;
1326 char *args2, *equals, *alias, *command;
1327 char **alias_argv, **command_argv;
1328 dyn_string_t alias_dyn_string, command_dyn_string;
1329 struct cleanup *cleanup;
1330 static const char usage[] = N_("Usage: alias [-a] [--] ALIAS = COMMAND");
1332 if (args == NULL || strchr (args, '=') == NULL)
1335 args2 = xstrdup (args);
1336 cleanup = make_cleanup (xfree, args2);
1337 equals = strchr (args2, '=');
1339 alias_argv = gdb_buildargv (args2);
1340 make_cleanup_freeargv (alias_argv);
1341 command_argv = gdb_buildargv (equals + 1);
1342 make_cleanup_freeargv (command_argv);
1344 for (i = 0; alias_argv[i] != NULL; )
1346 if (strcmp (alias_argv[i], "-a") == 0)
1351 else if (strcmp (alias_argv[i], "--") == 0)
1360 if (alias_argv[0] == NULL || command_argv[0] == NULL
1361 || *alias_argv[0] == '\0' || *command_argv[0] == '\0')
1364 for (i = 0; alias_argv[i] != NULL; ++i)
1366 if (! valid_user_defined_cmd_name_p (alias_argv[i]))
1369 error (_("Invalid command name: %s"), alias_argv[i]);
1371 error (_("Invalid command element name: %s"), alias_argv[i]);
1375 alias_argc = countargv (alias_argv);
1376 command_argc = countargv (command_argv);
1378 /* COMMAND must exist.
1379 Reconstruct the command to remove any extraneous spaces,
1380 for better error messages. */
1381 command_dyn_string = argv_to_dyn_string (command_argv, command_argc);
1382 make_cleanup_dyn_string_delete (command_dyn_string);
1383 command = dyn_string_buf (command_dyn_string);
1384 if (! valid_command_p (command))
1385 error (_("Invalid command to alias to: %s"), command);
1387 /* ALIAS must not exist. */
1388 alias_dyn_string = argv_to_dyn_string (alias_argv, alias_argc);
1389 make_cleanup_dyn_string_delete (alias_dyn_string);
1390 alias = dyn_string_buf (alias_dyn_string);
1391 if (valid_command_p (alias))
1392 error (_("Alias already exists: %s"), alias);
1394 /* If ALIAS is one word, it is an alias for the entire COMMAND.
1395 Example: alias spe = set print elements
1397 Otherwise ALIAS and COMMAND must have the same number of words,
1398 and every word except the last must match; and the last word of
1399 ALIAS is made an alias of the last word of COMMAND.
1400 Example: alias set print elms = set pr elem
1401 Note that unambiguous abbreviations are allowed. */
1403 if (alias_argc == 1)
1405 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1406 add_com_alias (xstrdup (alias_argv[0]), command, class_alias,
1411 dyn_string_t alias_prefix_dyn_string, command_prefix_dyn_string;
1412 const char *alias_prefix, *command_prefix;
1413 struct cmd_list_element *c_alias, *c_command;
1415 if (alias_argc != command_argc)
1416 error (_("Mismatched command length between ALIAS and COMMAND."));
1418 /* Create copies of ALIAS and COMMAND without the last word,
1419 and use that to verify the leading elements match. */
1420 alias_prefix_dyn_string =
1421 argv_to_dyn_string (alias_argv, alias_argc - 1);
1422 make_cleanup_dyn_string_delete (alias_prefix_dyn_string);
1423 command_prefix_dyn_string =
1424 argv_to_dyn_string (alias_argv, command_argc - 1);
1425 make_cleanup_dyn_string_delete (command_prefix_dyn_string);
1426 alias_prefix = dyn_string_buf (alias_prefix_dyn_string);
1427 command_prefix = dyn_string_buf (command_prefix_dyn_string);
1429 c_command = lookup_cmd_1 (& command_prefix, cmdlist, NULL, 1);
1430 /* We've already tried to look up COMMAND. */
1431 gdb_assert (c_command != NULL
1432 && c_command != (struct cmd_list_element *) -1);
1433 gdb_assert (c_command->prefixlist != NULL);
1434 c_alias = lookup_cmd_1 (& alias_prefix, cmdlist, NULL, 1);
1435 if (c_alias != c_command)
1436 error (_("ALIAS and COMMAND prefixes do not match."));
1438 /* add_cmd requires *we* allocate space for name, hence the xstrdup. */
1439 add_alias_cmd (xstrdup (alias_argv[alias_argc - 1]),
1440 command_argv[command_argc - 1],
1441 class_alias, abbrev_flag, c_command->prefixlist);
1444 do_cleanups (cleanup);
1447 /* Print a list of files and line numbers which a user may choose from
1448 in order to list a function which was specified ambiguously (as
1449 with `list classname::overloadedfuncname', for example). The
1450 vector in SALS provides the filenames and line numbers. */
1453 ambiguous_line_spec (struct symtabs_and_lines *sals)
1457 for (i = 0; i < sals->nelts; ++i)
1458 printf_filtered (_("file: \"%s\", line number: %d\n"),
1459 symtab_to_filename_for_display (sals->sals[i].symtab),
1460 sals->sals[i].line);
1463 /* Sort function for filter_sals. */
1466 compare_symtabs (const void *a, const void *b)
1468 const struct symtab_and_line *sala = a;
1469 const struct symtab_and_line *salb = b;
1472 if (!sala->symtab->dirname)
1474 if (salb->symtab->dirname)
1477 else if (!salb->symtab->dirname)
1479 if (sala->symtab->dirname)
1484 r = filename_cmp (sala->symtab->dirname, salb->symtab->dirname);
1489 r = filename_cmp (sala->symtab->filename, salb->symtab->filename);
1493 if (sala->line < salb->line)
1495 return sala->line == salb->line ? 0 : 1;
1498 /* Remove any SALs that do not match the current program space, or
1499 which appear to be "file:line" duplicates. */
1502 filter_sals (struct symtabs_and_lines *sals)
1507 for (i = 0; i < sals->nelts; ++i)
1509 if (sals->sals[i].pspace == current_program_space
1510 && sals->sals[i].symtab != NULL)
1512 sals->sals[out] = sals->sals[i];
1518 qsort (sals->sals, sals->nelts, sizeof (struct symtab_and_line),
1523 for (i = 1; i < sals->nelts; ++i)
1525 if (compare_symtabs (&sals->sals[prev], &sals->sals[i]))
1527 /* Symtabs differ. */
1528 sals->sals[out] = sals->sals[i];
1534 if (sals->nelts == 0)
1544 set_debug (char *arg, int from_tty)
1546 printf_unfiltered (_("\"set debug\" must be followed by "
1547 "the name of a debug subcommand.\n"));
1548 help_list (setdebuglist, "set debug ", -1, gdb_stdout);
1552 show_debug (char *args, int from_tty)
1554 cmd_show_list (showdebuglist, from_tty, "");
1558 init_cmd_lists (void)
1560 max_user_call_depth = 1024;
1573 showhistlist = NULL;
1574 unsethistlist = NULL;
1575 maintenancelist = NULL;
1576 maintenanceinfolist = NULL;
1577 maintenanceprintlist = NULL;
1578 setprintlist = NULL;
1579 showprintlist = NULL;
1580 setchecklist = NULL;
1581 showchecklist = NULL;
1585 show_info_verbose (struct ui_file *file, int from_tty,
1586 struct cmd_list_element *c,
1590 fprintf_filtered (file,
1591 _("Verbose printing of informational messages is %s.\n"),
1594 fprintf_filtered (file, _("Verbosity is %s.\n"), value);
1598 show_history_expansion_p (struct ui_file *file, int from_tty,
1599 struct cmd_list_element *c, const char *value)
1601 fprintf_filtered (file, _("History expansion on command input is %s.\n"),
1606 show_baud_rate (struct ui_file *file, int from_tty,
1607 struct cmd_list_element *c, const char *value)
1609 fprintf_filtered (file, _("Baud rate for remote serial I/O is %s.\n"),
1614 show_remote_debug (struct ui_file *file, int from_tty,
1615 struct cmd_list_element *c, const char *value)
1617 fprintf_filtered (file, _("Debugging of remote protocol is %s.\n"),
1622 show_remote_timeout (struct ui_file *file, int from_tty,
1623 struct cmd_list_element *c, const char *value)
1625 fprintf_filtered (file,
1626 _("Timeout limit to wait for target to respond is %s.\n"),
1631 show_max_user_call_depth (struct ui_file *file, int from_tty,
1632 struct cmd_list_element *c, const char *value)
1634 fprintf_filtered (file,
1635 _("The max call depth for user-defined commands is %s.\n"),
1641 initialize_file_ftype _initialize_cli_cmds;
1644 _initialize_cli_cmds (void)
1646 struct cmd_list_element *c;
1648 /* Define the classes of commands.
1649 They will appear in the help list in alphabetical order. */
1651 add_cmd ("internals", class_maintenance, NULL, _("\
1652 Maintenance commands.\n\
1653 Some gdb commands are provided just for use by gdb maintainers.\n\
1654 These commands are subject to frequent change, and may not be as\n\
1655 well documented as user commands."),
1657 add_cmd ("obscure", class_obscure, NULL, _("Obscure features."), &cmdlist);
1658 add_cmd ("aliases", class_alias, NULL,
1659 _("Aliases of other commands."), &cmdlist);
1660 add_cmd ("user-defined", class_user, NULL, _("\
1661 User-defined commands.\n\
1662 The commands in this class are those defined by the user.\n\
1663 Use the \"define\" command to define a command."), &cmdlist);
1664 add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
1666 add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
1667 add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
1669 add_cmd ("breakpoints", class_breakpoint, NULL,
1670 _("Making program stop at certain points."), &cmdlist);
1671 add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
1672 add_cmd ("stack", class_stack, NULL, _("\
1673 Examining the stack.\n\
1674 The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
1675 counting from zero for the innermost (currently executing) frame.\n\n\
1676 At any time gdb identifies one frame as the \"selected\" frame.\n\
1677 Variable lookups are done with respect to the selected frame.\n\
1678 When the program being debugged stops, gdb selects the innermost frame.\n\
1679 The commands below can be used to select other frames by number or address."),
1681 add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
1683 /* Define general commands. */
1685 add_com ("pwd", class_files, pwd_command, _("\
1686 Print working directory. This is used for your program as well."));
1688 c = add_cmd ("cd", class_files, cd_command, _("\
1689 Set working directory to DIR for debugger and program being debugged.\n\
1690 The change does not take effect for the program being debugged\n\
1691 until the next time it is started."), &cmdlist);
1692 set_cmd_completer (c, filename_completer);
1694 add_com ("echo", class_support, echo_command, _("\
1695 Print a constant string. Give string as argument.\n\
1696 C escape sequences may be used in the argument.\n\
1697 No newline is added at the end of the argument;\n\
1698 use \"\\n\" if you want a newline to be printed.\n\
1699 Since leading and trailing whitespace are ignored in command arguments,\n\
1700 if you want to print some you must use \"\\\" before leading whitespace\n\
1701 to be printed or after trailing whitespace."));
1703 add_setshow_enum_cmd ("script-extension", class_support,
1704 script_ext_enums, &script_ext_mode, _("\
1705 Set mode for script filename extension recognition."), _("\
1706 Show mode for script filename extension recognition."), _("\
1707 off == no filename extension recognition (all sourced files are GDB scripts)\n\
1708 soft == evaluate script according to filename extension, fallback to GDB script"
1710 strict == evaluate script according to filename extension, error if not supported"
1713 show_script_ext_mode,
1714 &setlist, &showlist);
1716 add_com ("quit", class_support, quit_command, _("Exit gdb."));
1717 c = add_com ("help", class_support, help_command,
1718 _("Print list of commands."));
1719 set_cmd_completer (c, command_completer);
1720 add_com_alias ("q", "quit", class_support, 1);
1721 add_com_alias ("h", "help", class_support, 1);
1723 add_setshow_boolean_cmd ("verbose", class_support, &info_verbose, _("\
1724 Set verbosity."), _("\
1725 Show verbosity."), NULL,
1728 &setlist, &showlist);
1730 add_prefix_cmd ("history", class_support, set_history,
1731 _("Generic command for setting command history parameters."),
1732 &sethistlist, "set history ", 0, &setlist);
1733 add_prefix_cmd ("history", class_support, show_history,
1734 _("Generic command for showing command history parameters."),
1735 &showhistlist, "show history ", 0, &showlist);
1737 add_setshow_boolean_cmd ("expansion", no_class, &history_expansion_p, _("\
1738 Set history expansion on command input."), _("\
1739 Show history expansion on command input."), _("\
1740 Without an argument, history expansion is enabled."),
1742 show_history_expansion_p,
1743 &sethistlist, &showhistlist);
1745 add_prefix_cmd ("info", class_info, info_command, _("\
1746 Generic command for showing things about the program being debugged."),
1747 &infolist, "info ", 0, &cmdlist);
1748 add_com_alias ("i", "info", class_info, 1);
1749 add_com_alias ("inf", "info", class_info, 1);
1751 add_com ("complete", class_obscure, complete_command,
1752 _("List the completions for the rest of the line as a command."));
1754 add_prefix_cmd ("show", class_info, show_command, _("\
1755 Generic command for showing things about the debugger."),
1756 &showlist, "show ", 0, &cmdlist);
1757 /* Another way to get at the same thing. */
1758 add_info ("set", show_command, _("Show all GDB settings."));
1760 add_cmd ("commands", no_set_class, show_commands, _("\
1761 Show the history of commands you typed.\n\
1762 You can supply a command number to start with, or a `+' to start after\n\
1763 the previous command number shown."),
1766 add_cmd ("version", no_set_class, show_version,
1767 _("Show what version of GDB this is."), &showlist);
1769 add_cmd ("configuration", no_set_class, show_configuration,
1770 _("Show how GDB was configured at build time."), &showlist);
1772 /* If target is open when baud changes, it doesn't take effect until
1773 the next open (I think, not sure). */
1774 add_setshow_zinteger_cmd ("remotebaud", no_class, &baud_rate, _("\
1775 Set baud rate for remote serial I/O."), _("\
1776 Show baud rate for remote serial I/O."), _("\
1777 This value is used to set the speed of the serial port when debugging\n\
1778 using remote targets."),
1781 &setlist, &showlist);
1783 add_setshow_zinteger_cmd ("remote", no_class, &remote_debug, _("\
1784 Set debugging of remote protocol."), _("\
1785 Show debugging of remote protocol."), _("\
1786 When enabled, each packet sent or received with the remote target\n\
1790 &setdebuglist, &showdebuglist);
1792 add_setshow_zuinteger_unlimited_cmd ("remotetimeout", no_class,
1793 &remote_timeout, _("\
1794 Set timeout limit to wait for target to respond."), _("\
1795 Show timeout limit to wait for target to respond."), _("\
1796 This value is used to set the time limit for gdb to wait for a response\n\
1799 show_remote_timeout,
1800 &setlist, &showlist);
1802 add_prefix_cmd ("debug", no_class, set_debug,
1803 _("Generic command for setting gdb debugging flags"),
1804 &setdebuglist, "set debug ", 0, &setlist);
1806 add_prefix_cmd ("debug", no_class, show_debug,
1807 _("Generic command for showing gdb debugging flags"),
1808 &showdebuglist, "show debug ", 0, &showlist);
1810 c = add_com ("shell", class_support, shell_escape, _("\
1811 Execute the rest of the line as a shell command.\n\
1812 With no arguments, run an inferior shell."));
1813 set_cmd_completer (c, filename_completer);
1815 c = add_com ("edit", class_files, edit_command, _("\
1816 Edit specified file or function.\n\
1817 With no argument, edits file containing most recent line listed.\n\
1818 Editing targets can be specified in these ways:\n\
1819 FILE:LINENUM, to edit at that line in that file,\n\
1820 FUNCTION, to edit at the beginning of that function,\n\
1821 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1822 *ADDRESS, to edit at the line containing that address.\n\
1823 Uses EDITOR environment variable contents as editor (or ex as default)."));
1825 c->completer = location_completer;
1827 add_com ("list", class_files, list_command, _("\
1828 List specified function or line.\n\
1829 With no argument, lists ten more lines after or around previous listing.\n\
1830 \"list -\" lists the ten lines before a previous ten-line listing.\n\
1831 One argument specifies a line, and ten lines are listed around that line.\n\
1832 Two arguments with comma between specify starting and ending lines to list.\n\
1833 Lines can be specified in these ways:\n\
1834 LINENUM, to list around that line in current file,\n\
1835 FILE:LINENUM, to list around that line in that file,\n\
1836 FUNCTION, to list around beginning of that function,\n\
1837 FILE:FUNCTION, to distinguish among like-named static functions.\n\
1838 *ADDRESS, to list around the line containing that address.\n\
1839 With two args if one is empty it stands for ten lines away from \
1843 add_com_alias ("l", "list", class_files, 1);
1845 add_com_alias ("v", "list", class_files, 1);
1848 add_com_alias ("file", "list", class_files, 1);
1850 c = add_com ("disassemble", class_vars, disassemble_command, _("\
1851 Disassemble a specified section of memory.\n\
1852 Default is the function surrounding the pc of the selected frame.\n\
1853 With a /m modifier, source lines are included (if available).\n\
1854 With a /r modifier, raw instructions in hex are included.\n\
1855 With a single argument, the function surrounding that address is dumped.\n\
1856 Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
1857 in the form of \"start,end\", or \"start,+length\".\n\
1859 Note that the address is interpreted as an expression, not as a location\n\
1860 like in the \"break\" command.\n\
1861 So, for example, if you want to disassemble function bar in file foo.c\n\
1862 you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
1863 set_cmd_completer (c, location_completer);
1865 add_com_alias ("va", "disassemble", class_xdb, 0);
1867 add_com_alias ("!", "shell", class_support, 0);
1869 c = add_com ("make", class_support, make_command, _("\
1870 Run the ``make'' program using the rest of the line as arguments."));
1871 set_cmd_completer (c, filename_completer);
1872 add_cmd ("user", no_class, show_user, _("\
1873 Show definitions of non-python user defined commands.\n\
1874 Argument is the name of the user defined command.\n\
1875 With no argument, show definitions of all user defined commands."), &showlist);
1876 add_com ("apropos", class_support, apropos_command,
1877 _("Search for commands matching a REGEXP"));
1879 add_setshow_uinteger_cmd ("max-user-call-depth", no_class,
1880 &max_user_call_depth, _("\
1881 Set the max call depth for non-python user-defined commands."), _("\
1882 Show the max call depth for non-python user-defined commands."), NULL,
1884 show_max_user_call_depth,
1885 &setlist, &showlist);
1887 add_setshow_boolean_cmd ("trace-commands", no_class, &trace_commands, _("\
1888 Set tracing of GDB CLI commands."), _("\
1889 Show state of GDB CLI command tracing."), _("\
1890 When 'on', each command is displayed as it is executed."),
1893 &setlist, &showlist);
1895 c = add_com ("alias", class_support, alias_command, _("\
1896 Define a new command that is an alias of an existing command.\n\
1897 Usage: alias [-a] [--] ALIAS = COMMAND\n\
1898 ALIAS is the name of the alias command to create.\n\
1899 COMMAND is the command being aliased to.\n\
1900 If \"-a\" is specified, the command is an abbreviation,\n\
1901 and will not appear in help command list output.\n\
1904 Make \"spe\" an alias of \"set print elements\":\n\
1905 alias spe = set print elements\n\
1906 Make \"elms\" an alias of \"elements\" in the \"set print\" command:\n\
1907 alias -a set print elms = set print elements"));
1911 init_cli_cmds (void)
1913 struct cmd_list_element *c;
1914 char *source_help_text;
1916 source_help_text = xstrprintf (_("\
1917 Read commands from a file named FILE.\n\
1919 Usage: source [-s] [-v] FILE\n\
1920 -s: search for the script in the source search path,\n\
1921 even if FILE contains directories.\n\
1922 -v: each command in FILE is echoed as it is executed.\n\
1924 Note that the file \"%s\" is read automatically in this way\n\
1925 when GDB is started."), gdbinit);
1926 c = add_cmd ("source", class_support, source_command,
1927 source_help_text, &cmdlist);
1928 set_cmd_completer (c, filename_completer);